Quick clamping device for brake clearance adjusting arm bushing hole machining

Abstract

The utility model provides a brake clearance adjusting arm bushing hole processing fast clamping device, the brake clearance adjusting arm bushing hole processing fast clamping device comprises a base plate, a plurality of clamping mechanisms and a backing plate, the plurality of clamping mechanisms are arranged on the base plate at intervals, and one side of each clamping mechanism is provided with a switch for controlling the clamping mechanism. When the clamping device is used, the brake clearance adjusting arm shell to be machined is placed on the placing seat of the clamping mechanism, the base plate is placed on the shell, the switch is turned on, the pressing plate is driven by the telescopic rod of the clamping mechanism to press the base plate, then the shell is clamped, a lining hole is machined conveniently, operation is easy, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of brake clearance adjustment arm production, in particular to a brake clearance adjustment arm bushing hole processing quick clamping device. Background Art

[0002] The brake clearance adjustment arm is connected to the fork of the automobile brake cylinder push rod through a pin installed in a bushing. The bushing is installed in the bushing hole on the arm body of the brake clearance adjustment arm housing. Therefore, the bushing hole needs to be processed during the production of the brake clearance adjustment arm. Since the brake clearance adjustment arm housing has an irregular shape and cannot be directly clamped on a machine tool, a fixture is required to clamp the brake clearance adjustment arm housing. Therefore, how to quickly clamp the brake clearance adjustment arm housing is an urgent problem to be solved. Utility Model Content

[0003] The utility model aims at the defects and shortcomings existing in the above-mentioned technology and provides a convenient-to-use quick clamping device for machining a bushing hole of a brake clearance adjustment arm.

[0004] To achieve the above-mentioned purpose, the utility model provides a quick clamping device for processing a bushing hole of a brake clearance adjustment arm, the quick clamping device for processing a bushing hole of a brake clearance adjustment arm comprises a base plate, a clamping mechanism and a pad, a plurality of the clamping mechanisms are arranged at intervals on the base plate, each of the clamping mechanisms comprises a placement seat, a pressure plate and a telescopic rod, the placement seat is mounted on the base plate, the telescopic rod is vertically arranged, the telescopic rod is slidably arranged at the center of the placement seat, the top end of the telescopic rod is fixedly connected to the pressure plate, the diameter of the pressure plate is smaller than the inner diameter of the worm gear chamber of the housing, So that the tight brake clearance adjustment arm housing to be processed passes through the worm gear chamber and the pressure plate and is placed on the placement seat. A switch for controlling the extension and retraction of the telescopic rod is arranged on one side of the placement seat. The diameter of the pad is larger than the inner diameter of the worm gear chamber. A notch is arranged on the pad. The width of the notch is larger than the diameter of the telescopic rod and smaller than the diameter of the pressure plate. The pad is clamped on the outside of the telescopic rod through the notch, and the pad is placed on the housing to be processed so that the housing to be processed is clamped by the pressure plate under the drive of the telescopic rod.

[0005] Furthermore, the telescopic rod is a piston rod of a cylinder, and the cylinder body of the cylinder is arranged in the placement seat.

[0006] Furthermore, the switch is a pneumatic valve, which is mounted on the base plate. The number of the pneumatic valves is equal to the number of the cylinders, so that each cylinder is independently controlled by a corresponding pneumatic valve.

[0007] Furthermore, a handle is fixedly arranged on the pad, and the handle is arranged opposite to the notch.

[0008] Furthermore, support seats having the same number as the clamping mechanisms are fixedly arranged on the other side of the placement seat away from the switch, and the support seats are fixedly arranged on the bottom plate.

[0009] Compared with the prior art, the utility model has the following technical effects:

[0010] 1. The utility model of the quick clamping device for processing the bushing hole of the brake clearance adjustment arm can quickly clamp the brake clearance adjustment arm housing through the cooperation of the clamping mechanism and the pad, so as to process the bushing hole. When in use, it is only necessary to place the brake clearance adjustment arm housing to be processed on the placement seat, place the pad on the housing, turn on the switch, and use the telescopic rod to drive the pressing plate to press the pad placed on the housing to clamp the housing. The operation is simple and easy to use.

[0011] 2. The utility model has multiple clamping mechanisms for the quick clamping device for processing the bushing hole of the brake clearance adjustment arm, which can process multiple brake clearance adjustment arms at one time, thereby improving the processing efficiency. Each clamping structure is independently controlled by a corresponding switch, and the processing quantity can be selected as needed, which is convenient to use;

[0012] 3. The support seat of the utility model can support the arm body of the brake clearance adjustment arm housing to prevent the arm body from jumping during the processing and ensure the processing quality of the bushing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which constitute a part of this specification and are used to further understand the present utility model, illustrate preferred embodiments of the present utility model and are used together with the specification to illustrate the principle of the present utility model. In the drawings:

[0014] Figure 1 It is a structural schematic diagram of a quick clamping device for processing a bushing hole of a brake clearance adjustment arm according to the utility model;

[0015] Figure 2 The utility model is a schematic diagram of the use state of the quick clamping device for machining the bushing hole of the brake clearance adjustment arm.

[0016] Numbers in the figure: 1, bottom plate, 2, clamping mechanism, 201, placement seat, 202, telescopic rod, 203, pressing plate, 3, pad, 4, switch, 5, support seat, 6, notch, 7, handle;

[0017] 100. The brake clearance adjustment arm housing to be processed. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] Example: Figure 1 The quick clamping device for processing the bushing hole of the brake clearance adjustment arm shown in the figure includes a base plate 1, a clamping mechanism 2 and a pad 3. A plurality of clamping mechanisms 2 are arranged at intervals on the base plate 1. Arranging a plurality of clamping mechanisms 2 can process the bushing holes of a plurality of brake clearance adjustment arms at the same time, thereby improving the processing efficiency. Each clamping mechanism 2 includes a placement seat 201, a pressure plate 203 and a telescopic rod 202. The placement seat 201 is installed on the base plate 1, and the telescopic rod 202 is arranged vertically. The telescopic rod 202 is slidably arranged at the center of the placement seat 201, and its top end is fixedly connected to the pressure plate 203. The cross-sections of the placement seat 201, the telescopic rod 202 and the pressure plate 203 are all circular, and the diameter of the pressure plate 203 is smaller than the inner diameter of the worm gear chamber of the brake clearance adjustment arm housing 100, so that the brake clearance adjustment arm housing 1 to be processed 00 passes through the worm gear chamber through the pressing plate 203 and is placed on the placing seat 201. A switch 4 for controlling the extension and retraction of the telescopic rod 202 is arranged on one side of the placing seat 201. The diameter of the pad 3 is larger than the inner diameter of the worm gear chamber. A notch 6 is arranged on the pad 3. The notch 6 extends from one side of the pad 3 to the center point and exceeds the center point. The notch 6 is an oblong shape consisting of a rectangular groove and a semicircular groove at one end. The width of the notch 6 is larger than the diameter of the telescopic rod 202, and the width of the notch 6 is smaller than the diameter of the pressing plate 203. Figure 2 When in use, first install the bottom plate 1 on the workbench of the lathe, then place the brake clearance adjustment arm housing 100 to be processed on the placement seat 201, and place the pad 3 on the worm gear chamber of the brake clearance adjustment arm housing 100. At this time, the notch 6 of the pad 3 is clamped on the outside of the telescopic rod 202, and the switch 4 is turned to shorten the telescopic rod 202. Driven by the telescopic rod 202, the pressing plate 203 presses the pad 3 to clamp the housing 100 to be processed. The operation is simple, and the use is convenient and fast.

[0020] The telescopic rod 202 of this embodiment is the piston rod of the cylinder, and the cylinder body of the cylinder is arranged in the placement seat 201. In other embodiments, the cylinder is installed on the base plate 1, and the top surface of the cylinder body of the cylinder is the placement seat for placing the shell 100 to be processed. The switch 4 is a pneumatic valve, and the air intake and return of the cylinder are known through the pneumatic valve hole. The pneumatic valve is installed on the base plate 1, and the number of the pneumatic valves is equal to the number of cylinders, so that each cylinder can be independently controlled by the corresponding pneumatic valve. This control method can use the clamping mechanism as needed to improve the convenience of use. The pneumatic valve is a manual valve, and it only needs to pull the valve handle when using it.

[0021] In other embodiments, the air cylinder may be replaced by a hydraulic cylinder. In this case, the switch is a hydraulic valve to control the oil inlet and oil return of the hydraulic cylinder, thereby controlling the extension and retraction of its piston rod.

[0022] In this embodiment, in order to facilitate taking the pad 3 , a handle 7 is fixedly provided on the pad 3 , and the handle 7 is arranged opposite to the notch 6 .

[0023] As another embodiment of the utility model: when the arm body of the brake clearance adjustment arm housing 100 is longer, in order to improve the stability of the arm body during the processing of the bushing hole, a support seat 5 supporting the arm body is additionally provided on the basis of the above embodiment. Specifically, a support seat 5 having the same number as the clamping mechanism 2 is fixedly provided on the other side of the placement seat 201 away from the switch 4, and the support seat 5 is fixedly provided on the base plate 1.

[0024] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A quick clamping device for machining a bushing hole of a brake clearance adjustment arm, characterized in that: The invention comprises a base plate, a clamping mechanism and a pad, wherein several clamping mechanisms are arranged on the base plate at intervals, each of the clamping mechanisms comprises a placing seat, a pressing plate and a telescopic rod, the placing seat is mounted on the base plate, the telescopic rod is arranged vertically, the telescopic rod is slidably arranged at the center of the placing seat, and the top of the telescopic rod is fixedly connected to the pressing plate, the diameter of the pressing plate is smaller than the inner diameter of the worm gear chamber of the tight brake clearance adjustment arm housing, so that the tight brake clearance adjustment arm housing to be processed passes through the worm gear chamber and the pressing plate and is placed on the placing seat, a switch for controlling the extension and retraction of the telescopic rod is arranged on one side of the placing seat, the diameter of the pad is larger than the inner diameter of the worm gear chamber, a notch is arranged on the pad, the width of the notch is larger than the diameter of the telescopic rod and smaller than the diameter of the pressing plate, the pad is clamped on the outside of the telescopic rod through the notch, and the pad is placed on the housing to be processed, so that the housing to be processed is clamped by the pressing plate under the drive of the telescopic rod.

2. The quick clamping device for machining a bushing hole of a brake clearance adjustment arm according to claim 1, characterized in that: The telescopic rod is a piston rod of a cylinder, and the cylinder body of the cylinder is arranged in the placement seat.

3. The quick clamping device for machining a bushing hole of a brake clearance adjustment arm according to claim 2, characterized in that: The switch is a pneumatic valve, which is mounted on the base plate. The number of the pneumatic valves is equal to the number of the cylinders, so that each cylinder can be independently controlled by a corresponding pneumatic valve.

4. The quick clamping device for machining a bushing hole of a brake clearance adjustment arm according to claim 1, characterized in that: A handle is fixedly arranged on the pad, and the handle is arranged opposite to the notch.

5. The quick clamping device for machining a bushing hole of a brake clearance adjustment arm according to claim 1, characterized in that: Support seats having the same number as the clamping mechanisms are fixedly arranged on the other side of the placement seat away from the switch, and the support seats are fixedly arranged on the bottom plate.

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