Wheel space detecting device

The present application discloses a wheel space detecting device, comprising a frame, a first servo motor, a bottom plate, an adapter shaft, a shaft sleeve, a radial bearing, a lower end cap, a pedestal, a pressure bearing, a base, a clamping cylinder, first linear guide rails, first guide rail sliding seats, first sliding seat frames, racks, first sleeves, first bearings, rotating shafts, first end caps, clamping wheels, a guide rail, and so on. The present invention can meet the needs of wheel brake space detection, has the characteristics of simple structure, stable detection performance, high positioning precision, simple operation and the like, and therefore is very suitable for automatic batch production.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 201811298010.2, filed on Nov. 2, 2018, which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The present application relates to a wheel space detecting device, specifically to a device for automatically detecting a wheel brake space after the completion of wheel machining process.

BACKGROUND ART

As safety parts and exterior parts of a vehicle, wheels need to be assembled on the vehicle. At the same time, the wheel back cavity needs to be equipped with a brake drum, a speed sensor, a balance block and other devices. Therefore, the brake space of the wheel back cavity needs to be comprehensively compatible with the spatial positions of the brake drum, the speed sensor and the balance block. Enterprises usually detect whether the brake space is qualified by adopting a matching gauge such as a detection plate. Such a detection method has the problems of low efficiency, high labor intensity and poor detection effect.

SUMMARY OF THE INVENTION

The objective of the present application is to provide a wheel space detecting device.

In order to achieve the above objective, the technical solution of the present application is: a wheel space detecting device according to the present application consists of a frame, a first servo motor, a bottom plate, an adapter shaft, a shaft sleeve, a radial bearing, a lower end cap, a pedestal, a pressure bearing, a base, a clamping cylinder, first linear guide rails, first guide rail sliding seats, first sliding seat frames, racks, first sleeves, first bearings, rotating shafts, first end caps, clamping wheels, a guide rail, a second sleeve, a second bearing, a second end cap, a shaft, gears, a first lead screw, a second guide rail sliding seat, a second linear guide rail, a second sliding frame, a first lead screw nut, a second servo motor, a third servo motor, a second lead screw, a second lead screw nut, a third sliding frame, a third guide rail sliding seat, a third linear guide rail, a probe holder, and a probe.

The first servo motor, the pedestal and the shaft sleeve are mounted on the frame through the bottom plate; the output shaft of the first servo motor is connected to the base through the adapter shaft; the radial bearing is connected to the shaft sleeve and the base respectively and enclosed in the shaft sleeve and the base by the lower end cap; the pressure bearing is mounted on the pedestal and connected to the base. Through the pressure bearing and the radial bearing, the first servo motor may drive the base to rotate around the axis of the radial bearing with high precision.

The guide rail, the clamping cylinder, the first linear guide rails and the second sleeve are mounted on the base; the second bearing and the shaft are enclosed in the second sleeve through the second end cap, and the gear is mounted at the upper end of the shaft. Left and right clamping execution structures are symmetrically mounted on the base, and one of the first sliding seat frames is connected to one of the first linear guide rails through one of the first guide rail sliding seats; one side of the rack is fixed on one of the first sliding seat frames, and the other side is engaged with the gear; one of the first sleeves is fixed on one of the first sliding seat frames and enclosed inside one of the first sleeves through one of the first end caps, one of the first bearings and one of the first rotating shafts, and the clamping wheels are mounted at the upper end of the rotating shafts; each of the left and right clamping execution structures is provided with two clamping wheels distributed symmetrically; the output shaft of the clamping cylinder is connected to the left first sliding seat frame. Through the synchronization mechanism of the racks and the gear, the clamping cylinder may drive the left-right symmetric clamping execution structures to move synchronously horizontally along the first linear guide rails to achieve high-precision clamping and loosening of a wheel.

The second linear guide rail and the second servo motor are mounted on the third guide rail sliding seat; the second sliding frame is connected to the second linear guide rail through the second guide rail sliding seat; one end of the first lead screw is connected to the second servo motor; the first lead screw nut is mounted on the second guide rail sliding seat and engages with the first lead screw; the probe is mounted on the second sliding frame through the probe holder. The probe may be controlled to move horizontally along the second linear guide rail by controlling the steering and the number of revolutions of the second servo motor.

The third linear guide rail and the third servo motor are mounted on the frame; the third sliding frame is connected to the third linear guide rail through the third guide rail sliding seat; one end of the second lead screw is connected to the third servo motor; the second lead screw nut is mounted on the third guide rail sliding seat and engages with the second lead screw. The third sliding frame may be controlled to move vertically along the third linear guide rail by controlling the steering and the number of revolutions of the third servo motor.

According to the requirements of a wheel detection space, a control system comprehensively controls the steering and the number of revolutions of the second servo motor and the third servo motor through a pre-written running program to control the probe to move linearly along the wheel assembly space.

In actual use, the wheel is transported directly above the device by a transport system, compressed air is introduced, and the clamping cylinder may drive the four uniformly distributed clamping wheels in the left and right symmetric clamping execution structures through the synchronization mechanism of the racks and the gear to move synchronously and concentrically along the first linear guide rails to achieve high-precision clamping of the wheel. Then, the first servo motor starts to work, and the base and the wheel are driven through the pressure bearing and the radial bearing to rotate around the axis of the radial bearing with high precision. According to the requirements of the wheel detection space, a wheel assembly space detecting program is pre-written, the control system of the device comprehensively controls the steering and the number of revolutions of the second servo motor and the third servo motor through the pre-input space detecting program to control the probe to move linearly along the wheel assembly space, the probe synchronously feeds back distance information between wheels to an analysis system of the device, and the analysis system compares the acquired information with the requirements of the wheel product standards, and determines whether the assembly space of the wheel is qualified. So far, the assembly space detection on the wheel is completed.

The present application may meet the needs of wheel brake space detection, has the characteristics of simple structure, stable detection performance, high positioning precision, simple operation and the like, and therefore is very suitable for automatic batch production.

DETAILED DESCRIPTION OF THE INVENTION

The details and working conditions of the specific device according to the present application will be described in detail below in combination with the drawing.

As shown inFIG. 1, a wheel space detecting device according to the present application consists of a frame1, a first servo motor2, a bottom plate3, an adapter shaft4, a shaft sleeve5, a radial bearing6, a lower end cap7, a pedestal8, a pressure bearing9, a base10, a clamping cylinder11, first linear guide rails12, first guide rail sliding seats13, first sliding seat frames14, racks15, first sleeves16, first bearings17, rotating shafts18, first end caps19, clamping wheels20, a guide rail21, a second sleeve22, a second bearing23, a second end cap24, a shaft25, gears26, a first lead screw27, a second guide rail sliding seat28, a second linear guide rail29, a second sliding frame30, a first lead screw nut31, a second servo motor32, a third servo motor33, a second lead screw34, a second lead screw nut35, a third sliding frame36, a third guide rail sliding seat37, a third linear guide rail38, a probe holder39, and a probe40.

The first servo motor2, the pedestal8and the shaft sleeve5are mounted on the frame1through the bottom plate3; the output shaft of the first servo motor2is connected to the base10through the adapter shaft4; the radial bearings6is connected to the shaft sleeve5and the base10respectively and enclosed in the shaft sleeve5and the base10by the lower end cap7; the pressure bearing9is mounted on the pedestal8and connected to the base10. Through the pressure bearing9and the radial bearing6, the first servo motor2may drive the base10to rotate around the axis of the radial bearing6with high precision.

The guide rail21, the clamping cylinder11, the first linear guide rails12and the second sleeve22are mounted on the base10; the second bearing23and the shaft25are enclosed in the second sleeve22through the second end cap24, and the gear26is mounted at the upper end of the shaft25. Left and right clamping execution structures are symmetrically mounted on the base10, and one of the first sliding seat frames14is connected to one of the first linear guide rails12through one of the first guide rail sliding seats13; one side of the rack15is fixed on one of the first sliding seat frames14, and the other side is engaged with the gear26; one of the sleeves16is fixed on one of the first sliding seat frames14and enclosed inside one of the sleeves16through one of the first end caps19, one of the first bearings17and one of the first rotating shafts18, and the clamping wheels20are mounted at the upper end of the rotating shaft18; each of the left and right clamping execution structures is provided with two clamping wheels20distributed symmetrically; the output shaft of the clamping cylinder11is connected to the left first sliding seat frame14. Through the synchronization mechanism of the racks15and the gear26, the clamping cylinder11may drive the left-right symmetric clamping execution structures to move synchronously horizontally along the first linear guide rails12to achieve high-precision clamping and loosening of a wheel.

The second linear guide rail29and the second servo motor32are mounted on the third guide rail sliding seat37; the second sliding frame30is connected to the second linear guide rail29through the second guide rail sliding seat28; one end of the first lead screw27is connected to the second servo motor32; the first lead screw nut31is mounted on the second guide rail sliding seat28and engages with the first lead screw27; the probe40is mounted on the second sliding frame30through the probe holder39. The probe40can be controlled to move horizontally along the second linear guide rail29by controlling the steering and the number of revolutions of the second servo motor32.

The third linear guide rail38and the third servo motor33are mounted on the frame1; the third sliding frame36is connected to the third linear guide rail38through the third guide rail sliding seat37; one end of the second lead screw34is connected to the third servo motor33; the second lead screw nut35is mounted on the third guide rail sliding seat37and engages with the second lead screw34. The third sliding frame36maybe controlled to move vertically along the third linear guide rail38by controlling the steering and the number of revolutions of the third servo motor33.

According to the requirements of a wheel detection space, a control system comprehensively controls the steering and the number of revolutions of the second servo motor32and the third servo motor33through a pre-written running program to control the probe40to move linearly along the wheel assembly space.

In actual use, the wheel is transported directly above the device by a transport system, compressed air is introduced, and the clamping cylinder11may drive the four uniformly distributed clamping wheels20in the left and right symmetric clamping execution structures through the synchronization mechanism of the racks15and the gear26to move synchronously and concentrically along the first linear guide rails12to achieve high-precision clamping of the wheel. Then, the first servo motor2starts to work, and the base10and the wheel are driven through the pressure bearing9and the radial bearing6to rotate around the axis of the radial bearing6with high precision. According to the requirements of the wheel detection space, a wheel assembly space detecting program is pre-written, the control system of the device comprehensively controls the steering and the number of revolutions of the second servo motor32and the third servo motor33through the pre-input space detecting program to control the probe40to move linearly along the wheel assembly space, the probe40synchronously feeds back distance information between wheels to an analysis system of the device, and the analysis system compares the acquired information with the requirements of the wheel product standards, and determines whether the assembly space of the wheel is qualified. So far, the assembly space detection on the wheel is completed.