# Patent

## Title
Flexible clamping device

## Abstract

The present disclosure provides a flexible clamping device, which is composed of a housing, a shaft I, a sleeve I, a cylinder, a connector, a shaft II, a clamping spring, a protective pad, a pressure block, a shaft III, a sleeve II and a bottom plate. The bottom plate is provided with two steps on which wheels having different sizes are fixed respectively. When the large-sized wheel is put on the bottom step, the cylinder drives the connector to move right in a plane, the protective pad on the pressure block presses the hub of the wheel, and the function of compacting the large-sized wheel is thus realized; when the small-sized wheel is put on the bottom step, the cylinder drives the connector to continuously move right in the plane, the protective pad on the pressure block presses the hub of the wheel, and the function of compacting the small-sized wheel is thus realized. The flexible clamping device in use can meet the requirement of mixed-line high precision clamping in the wheel burr brushing process, has the characteristics of ideal effect, high efficiency, safety and reliability in work and high degree of automation, and is particularly suitable for batch production on production lines.

## Background
RELATED APPLICATION
This application claims priority to Chinese Patent Application No. 201710103786.3, filed on Feb. 24, 2017, which is hereby incorporated by reference in its entirety.
TECHNICAL FIELD
The present disclosure relates to a flexible clamping device, and specifically to a clamp capable of clamping hubs having different sizes.
BACKGROUND
With the propos of flexible production, it has attracted more and more attention of enterprises. The automatic line production can greatly improve labor productivity, save labor, reduce cost, increase returns and the like for enterprises. In the automatic production process of hub industry, mixed-line production has become a present universal production mode, which highly requires the flexibility of machine tool equipment
SUMMARY
The present disclosure is aimed at providing a flexible clamping device, which can perform mixed-line machining via self structure and a compaction device according to hubs having different sizes to realize flexible production.
In order to fulfill the above aim, the present disclosure adopts the technical solution: a flexible clamping device is composed of a housing, a shaft I, a sleeve I, a cylinder, a connector, a shaft II, a clamping spring, a protective pad, a pressure block, a shaft III, a sleeve II and a bottom plate.
The housing is fixed below the bottom plate via four bolts, one end of the shaft I is fixed on the housing via a step, and the other end of the shaft I is fixed on the housing via the sleeve I and the cylinder. A cylinder rod at the upper end of the cylinder is in threaded connection with the connector, the connector is articulated with the pressure block via the shaft II and the clamping spring, and the pressure block is articulated to the housing via the shaft III and the sleeve II. One end of the shaft III is fixed outside the housing via a shaft shoulder, and the other end is fixed outside the housing via a pin.
The bottom plate is provided with two steps on which wheels having different sizes are fixed respectively. When the small-sized wheel is put on the bottom step, the cylinder rod of the cylinder moves up linearly, the cylinder simultaneously moves right in the circumferential direction by using the shaft I as a rotating shaft to drive the connector to move right in a plane, the pressure block moves right in the circumferential direction by using the shaft III as a rotating shaft, the protective pad presses the hub of the wheel, and the function of compacting the small-sized wheel is thus realized.
When the large-sized wheel is put on the top step of the bottom plate, the cylinder rod of the cylinder moves up linearly, the cylinder simultaneously moves right in the circumferential direction by using the shaft I as a rotating shaft to drive the connector to move right in a plane, the pressure block moves right in the circumferential direction by using the shaft III as a rotating shaft, the protective pad presses the hub of the wheel, and the function of compacting the large-sized wheel is thus realized.
The flexible clamping device of the present disclosure in use can meet the requirement of mixed-line high precision clamping in the wheel burr brushing process, has the characteristics of ideal effect, high efficiency, safety and reliability in work and high degree of automation, and is particularly suitable for batch production on production lines.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a structural schematic diagram of a flexible clamping device of the present disclosure.
FIG. 2 is a top view of the flexible clamping device of the present disclosure.
FIG. 3 is a side view of a compaction mechanism of the flexible clamping device of the present disclosure.
FIG. 4 is a side view 2 of the compaction mechanism of the flexible clamping device of the present disclosure.
FIG. 5 is a schematic diagram indicating that the flexible clamping device of the present disclosure compacts a small-sized wheel.
FIG. 6 is a schematic diagram indicating that the flexible clamping device of the present disclosure compacts a large-sized wheel.
FIG. 7 is a schematic diagram indicating how a flexible clamping device of the present disclosure clamps a wheel.
FIG. 8 is a schematic diagram illustrating a cross-section view of a portion of the flexible clamping device of the present disclosure.
FIG. 9 is a schematic diagram illustrating a cross-section view of the flexible clamping device of the present disclosure clamping a wheel.
FIG. 10 is a schematic diagram illustrating another cross-section view of a portion of the flexible clamping device of the present disclosure.
FIG. 11 is a schematic diagram indicating a schematic diagram indicating that the flexible clamping device of the present disclosure compacts a small-sized wheel.
FIG. 12 is a schematic diagram indicating how the flexible clamping device of the present disclosure can move a wheel onto a convey belt.
FIG. 13 is a schematic diagram indicating a top view of how the flexible clamping device of the present disclosure can move a wheel onto a convey belt.



In which: 1-housing, 2-shaft I, 3-sleeve I, 4-cylinder, 5-connector, 6-shaft II, 7-clamping spring, 8-protective pad, 9-pressure block, 10-shaft III, 11-sleeve II, 12-bottom plate.
DETAILED DESCRIPTION OF THE EMBODIMENTS
Details and working conditions of an example device provided by the present disclosure will be described below in combination with the accompanying drawings.
The device is composed of a housing 1, a shaft I 2, a sleeve I 3, a cylinder 4, a connector 5, a shaft II 6, a clamping spring 7, a protective pad 8, a pressure block 9, a shaft III 10, a sleeve II 11 and a bottom plate 12. The housing 1 is fixed below the bottom plate 12 via four bolts, one end of the shaft I 2 is fixed on the housing 1 via a step, and the other end of the shaft I 2 is fixed on the housing 1 via the sleeve I 3 and the cylinder 4.
A cylinder rod at the upper end of the cylinder 4 is in threaded connection with the connector 5, the connector 5 is articulated with the pressure block 9 via the shaft II 6 and the clamping spring 7, and the pressure block 9 is simultaneously articulated to the housing 1 via the shaft III 10 and the sleeve II 11. One end of the shaft III 10 is fixed outside the housing 1 via a shaft shoulder, and the other end is fixed outside the housing 1 via a pin.
The bottom plate 12 is provided with two steps on which wheels having different sizes are fixed respectively. When the small-sized wheel is put on the bottom step, the cylinder rod of the cylinder 4 moves up linearly, the cylinder 4 simultaneously moves right in the circumferential direction by using the shaft I 2 as a rotating shaft to drive the connector 5 to move right in a plane, the pressure block 9 moves right in the circumferential direction by using the shaft III 10 as a rotating shaft, the protective pad 8 presses the hub of the wheel, and the function of compacting the small-sized wheel is thus realized.
When the large-sized wheel is put on the top step of the bottom plate 12, the cylinder rod of the cylinder 4 moves up linearly, the cylinder 4 simultaneously moves right in the circumferential direction by using the shaft I 2 as a rotating shaft to drive the connector 5 to move right in a plane, the pressure block 9 moves right in the circumferential direction by using the shaft III 10 as a rotating shaft, the protective pad 8 presses the hub of the wheel, and the function of compacting the large-sized wheel is thus realized.

## Claims

1. A flexible clamping device is composed of a housing (1), a shaft I (2), a sleeve I (3), a cylinder (4), a connector (5), a shaft II (6), a clamping spring (7), a protective pad (8), a pressure block (9), a shaft III (10), a sleeve II (11) and a bottom plate (12), wherein the housing (1) is fixed below the bottom plate (12) via four bolts, one end of the shaft I (2) is fixed on the housing (1) via a step, and the other end of the shaft I (2) is fixed on the housing (1) via the sleeve I (3) and the cylinder (4); a cylinder rod at the upper end of the cylinder (4) is in threaded connection with the connector (5), the connector (5) is articulated with the pressure block (9) via the shaft II (6) and the clamping spring (7), and the pressure block (9) is simultaneously articulated to the housing (1) via the shaft III (10) and the sleeve II (11); one end of the shaft III (10) is fixed outside the housing (1) via a shaft shoulder, and the other end is fixed outside the housing (1) via a pin.

2. The flexible clamping device of claim 1, wherein the bottom plate (12) is provided with two steps on which wheels having different sizes are fixed respectively.