Patent ID: 12233512

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring toFIG.2toFIG.6, the vise of the present invention has a clamping force digital display mechanism, and its preferred embodiment comprises a vise10, a sensor20and a digital display device30. One of the preferred embodiments of the vise10comprises a vise body11, a nut seat12, a screw support seat13, a screw14and two jaws15,16. The upper end of the vise body11has two sliding rails111extending parallel to the front and rear ends, and a receiving groove112extending to the front and rear ends is formed between the two sliding rails111. The nut seat12is set in the receiving groove112of the vise body11, so that the nut seat12can drive the jaw16to move forward and backward in the receiving groove112. The screw support seat13is combined with the rear end of the vise body11through a screw locking structure, and is used as a fulcrum for supporting the rotation of the screw14. The screw14is passed through the screw support seat13, so that the shaft of the front end of the screw14is screwed on the nut seat12, and the rear end of the screw14protrudes behind the screw support seat13, and when the screw14rotates, it can drive the nut seat12to move forward and backward.

One of the two jaws15,16is fixedly combined on the two sliding rails111at the front end of the vise body11as a fixed jaw, and the other jaw16is locked on the nut seat12by screws as a movable jaw. Furthermore, the vise10can also implement a supercharging device17, the supercharging device17is an existing item, which can be an oil pressure supercharging mechanism, a mechanical multi-force supercharging mechanism, an air pressure supercharging mechanism or a screw supercharging mechanism institution or other structure etc. The supercharging device17is combined with the rear end of the screw14, so that the operator can combine a handle18in the tool hole at the rear end of the supercharging device17to rotate the supercharging device17and the screw14synchronously, so that when the screw14rotates, it drives one of the jaws16to move on the vise body10, so that the opening between the two jaws15and16can hold the workpiece.

The sensor20is set on the screw support seat13of the vise10, specifically, it can be one of a pressure sensor, an inductive sensor or a capacitive sensor. The sensor20is used to sense the reaction force returned from the screw14to the screw support seat13when the screw14drives the jaw16to clamp the workpiece, and then the sensor20generates a signal. The digital display device30is connected to the sensor20through a signal line40for receiving the signal of the sensor20, and displays the value of the clamping force of the vise10at that time after processing the signal.

Referring again toFIG.4andFIG.6, the preferred embodiment of the above-mentioned digital display device30comprises a casing31, and a control unit32, a display unit33, a power supply unit34and a control interface35arranged in the casing31. The casing31is waterproof and dust proof and fixed on the back end of the vise body10or the screw support seat13(as shown inFIG.4), so that the operator can obtain a better viewing effect. The control unit32is the core for signal processing and calculation, and mainly has a circuit board and a processor (IC). The display unit33is one of LCD, LED or OLED displays or other displays, and is used to display the value of the clamping force of the vise10. The power supply unit34has a battery and a power connector for connecting to an external power supply, providing the power required by the sensor20and the digital display device30. The control interface35can be a button interface or a touch interface, providing operations to activate, deactivate and set the digital display device30of the present invention, such as switching the displayed value of pressure, etc.

When the vise with a clamping force digital display mechanism of the present invention is used, through the sensor20and the digital display device30arranged in the vise10, it can provide that when the operator uses the vise10to clamp the workpiece, when the sensor20senses that the screw14drives the jaw16to clamp the workpiece, the reaction force from the screw14is transmitted back to the screw support seat13so that the screw support seat13undergoes deformation or displacement L1(as shown inFIG.4), and at the same time, the sensor20continuously senses its deformation or displacement L1to generate signal and feed back to the digital display design30. The digital display design30obtains the signal from the sensor20, processes and calculates it immediately through the processor (IC) of its control unit32, obtains the value of the clamping force of the vise10, and the display unit33composed of LCD, LED or OLED display shows the clamping force value of the vise at that time.

Therefore, the present invention allows the operator to directly watch the digital display design30to perform the action of turning the handle18, and the rotation can be stopped after reaching the set clamping force value. Therefore, the present invention can improve the disadvantage of the conventional vise that controls the clamping force only based on the operator's experience or hand feel, so that the vise10of the present invention can fix the workpiece with precise and appropriate clamping force, and prevent the workpiece from being deformed due to excessive clamping force, or the workpiece from loosening and shifting due to too small clamping force.

The vise10of the present invention is not limited to the vise with the supercharging design17mentioned above, any existing vise with clamping parts of the acting force/reaction force structure can be implemented. According to the present invention, the digital display design30has the design of casing31, control unit32, display unit33, power supply unit34and control interface35and can be fixed on the vise, and then the above sensor20can be installed on the screw support seat13of the vise10. It can enable the existing vise to realize the digital display function of clamping force, and improve the shortcomings of conventional vises that only rely on the operator's work experience or hand feeling to control the vise's clamping force.

Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.