Fixture for lock machining

Abstract

The utility model relates to a clamp for lock machining. The clamp comprises a power assembly, a lock containing base, a fixed clamping jaw, a movable clamping jaw and a movable sliding base. The movable sliding seat is movably mounted in the lock placing base, and a telescopic rod of the power assembly is connected with the movable sliding seat; a movable opening and a fixed clamping jaw are arranged on one face of the lock placing base, the movable clamping jaw penetrates through the movable opening to be connected with the movable sliding seat, the size of the movable clamping jaw is smaller than that of the movable opening, the distance between the fixed clamping jaw and the closest edge of the movable opening is smaller than that of the lock shaft, and the distance between the fixed clamping jaw and the farthest edge is larger than that of the lock shaft. Compared with the prior art, the lock rod of the lock is clamped through the power assembly, the fixed clamping jaw and the movable clamping jaw, manual clamping is not needed, and the machining efficiency is improved; the lock is limited through the limiting structure, the clamping position does not need to be adjusted, and the machining consistency can be guaranteed; and the pressure in the air cylinder can ensure that the clamping force for fixing the workpiece meets the machining requirement.

Description

Technical Field

[0001] The utility model relates to a clamp, in particular to a clamp used for lock processing. Background Art

[0002] A lock used in subway power-off equipment requires a 2.5-diameter through hole to be machined on the lock shaft. The existing clamping method is to use a bench vise for manual adjustment and clamping, which is inefficient and may result in inconsistent clamping positions or inconsistent machined hole positions.

[0003] After searching, the authorization announcement number CN205310121U discloses a lock clamp assembly, which specifically discloses: the lock clamp assembly includes a base plate, a clamp body movably arranged on the base plate, a clamp block movably arranged on the clamp body, and a clamping cylinder driving the clamp block, and a clamping station for positioning the lock is formed between the clamp block and the clamp body; a slide groove is provided on the clamp body, and the guiding trend of the slide groove is from the output direction of the clamping cylinder to the length direction of the clamping station, and the output direction of the clamping cylinder is perpendicular to the length direction of the clamping station; a limit block is also linked to the output end of the clamping cylinder, the guide end of the limit block is inclined, the limit block is slidably arranged in the slide groove, and a reset spring is provided between the limit block and the clamp body.

[0004] However, the prior art uses two cylinders, has a complex structure, and is only applicable to clamping the pin lock body. Therefore, it is a technical problem to design a lock with a simple structure and suitable for subway power supply equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a clamp for lock processing in order to overcome the defects of the above-mentioned prior art in that the structure is complex and does not meet the clamping requirements of specific locks.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] According to one aspect of the utility model, a clamp for lock processing is provided, which is used to clamp the lock shaft of the lock, and the clamp includes a power assembly, a lock placement base, a fixed claw, a movable claw and a movable slide; the movable slide is movably installed inside the lock placement base, and the telescopic rod of the power assembly is connected to the movable slide; a movable opening and a fixed claw are opened on one side of the lock placement base, and the movable claw passes through the movable opening and is connected to the movable slide, the size of the movable claw is smaller than the movable opening, and the distance between the fixed claw and the nearest edge of the movable opening is smaller than the size of the lock shaft, and the distance between the fixed claw and the farthest edge is greater than the size of the lock shaft.

[0008] As a preferred technical solution, the lock placement base is provided with a limiting structure that matches the shape of the lock.

[0009] As a preferred technical solution, a bottom plate is installed on one side of the lock placement base, and the power assembly is installed on the bottom plate.

[0010] As a preferred technical solution, the movable slide seat is provided with a groove, and the movable claw is embedded in the groove.

[0011] As a preferred technical solution, the moving range of the movable slide is smaller than the size of the movable opening in the moving direction of the movable slide.

[0012] As a preferred technical solution, the power component is a cylinder.

[0013] As a preferred technical solution, the cylinder wall is placed close to the side of the lock base.

[0014] As a preferred technical solution, the telescopic rod of the cylinder is located inside the lock placement base.

[0015] As a preferred technical solution, a locking release switch is installed on the cylinder.

[0016] As a preferred technical solution, the fixed claw and the movable claw are provided with anti-slip patterns.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1) The utility model clamps the lock rod of the lock through the power assembly, the fixed claw and the movable claw, and does not require manual clamping, thereby improving the processing efficiency;

[0019] 2) The utility model limits the lock to a specific position through a limiting structure, and there is no need to adjust the clamping position, which can improve the processing efficiency and ensure the consistency of processing;

[0020] 3) The utility model adopts a cylinder as a power component, and controls the switch of the cylinder through a switch, which is convenient and quick; the pressure in the cylinder can ensure that the clamping force of the workpiece is fixed to meet the processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a clamp used for lock processing in the utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of a clamp for lock processing according to the utility model;

[0023] Figure 3 This is a schematic diagram of the installation position of the lock of the utility model;

[0024] The numbers in the figure show:

[0025] 1. Cylinder, 2. Bottom plate, 3. Lock base, 30. Movable opening, 31. Limiting structure, 4. Fixed claw, 5. Movable claw, 6. Movable slide seat, 60. Groove, 7. Telescopic rod, 8. Lock. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0027] The utility model provides a clamp for lock processing, and combines the structure of the lock 8 to be modified and the requirements of the on-site processing technology to design a clamp for quickly clamping the lock 8. During the operation of the worker, only the lock 8 needs to be placed in the clamp slot, and the air source switch is pressed, and the clamping structure will automatically clamp the lock 8. At the same time, because the clamp has a positioning function, the lock 8 will be fixed in a suitable position, and there is no need to manually adjust the clamping position, which greatly improves the processing efficiency of the worker and can better meet the quality requirements.

[0028] like Figure 1 and Figure 2 As shown, the utility model comprises a cylinder 1, a base plate 2, a lock placement base 3, a fixed claw 4, a movable claw 5 and a movable slide 6.

[0029] The lock placement base 3 is provided with a movable opening 30, and the fixed claw 4 is fixedly connected to the upper surface of the lock placement base 3. The movable opening 30 and the fixed claw 4 are located in a straight line, and the distance between the fixed claw 4 and the movable opening 30 closest to the edge is smaller than the size of the lock shaft of the lock 8, and the distance between the fixed claw 4 and the farthest edge is larger than the size of the lock shaft. The lock placement base 3 is also provided with a limiting structure 31, which is designed according to the shape of the lock 8 and can fix the lock 8 for subsequent processing.

[0030] The base plate 2 is installed on the side of the lock base 3, and the cylinder 1 is installed on the base plate 2. One side of the cylinder 1 is close to the side of the lock base 3. The telescopic rod 7 of the cylinder 1 is located inside the lock base 3 and is connected to the movable slide 6.

[0031] The movable slide 6 is located inside the lock placement base 3 and can move inside the lock placement base 3 following the telescopic rod 7 of the cylinder 1 . A groove 60 is provided on the movable slide 6 , and the movable claw 5 is embedded in the groove 60 .

[0032] The movable claw 5 passes through the movable opening 30, and its cross-sectional size is smaller than that of the movable opening 30. One end is located on the upper surface of the lock 8, and the other end is embedded in the groove 60 of the movable slide 6. It can move with the movement of the movable slide 6 and cooperate with the fixed clamping claw to clamp the lock shaft of the lock 8; the clamping parts of the movable claw 5 and the fixed claw 4 are provided with anti-slip patterns to make the clamping more stable.

[0033] The cylinder 1 is provided with a locking release switch, and by pressing the locking release switch, the telescopic shaft can be controlled to be extended and retracted, thereby controlling the clamping or loosening of the movable claw 5.

[0034] The utility model is further introduced through the clamping process below:

[0035] like Figure 3 As shown, the lock 8 is placed on the lock placement base 3. The limiting structure 31 on the lock placement base 3 can well constrain the position of the lock 8 and play a role in rapid positioning; after the lock 8 is placed in place, the locking release switch is pressed, the telescopic rod 7 of the cylinder 1 pushes the movable slide 6 to move forward, and the movable claw 5 is fixed on the movable slide 6. Through cooperation with the fixed claw 4, the lock shaft of the lock 8 is fixed in the corresponding position, and then the hole processing on the lock shaft is started; after the processing is completed, the locking release switch is pressed, the telescopic rod 7 of the cylinder 1 moves backward together with the movable slide 6, the lock 8 is released, and the processing process is completed.

[0036] The utility model designs a lock placement base 3 according to the structural characteristics of the lock 8 to be processed, so that the lock 8 has a good limit, which is convenient for quick placement and does not require employees to manually align the position; an external air source is connected to the cylinder 1, and the expansion and contraction of the piston of the cylinder 1 is controlled by a switch, and the lock 8 is clamped and released by the expansion and contraction of the piston. In actual operation, the pressure in the cylinder 1 can ensure that the clamping force of the workpiece meets the requirements of actual processing, and ensure that the workpiece will not move during the processing. In the application process of this clamp, the work efficiency is greatly improved, the defective rate of products is reduced, the production cost is reduced to the greatest extent, and the effect of reducing costs and increasing efficiency is achieved.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A clamp for lock processing, used for clamping the lock shaft of a lock (8), characterized in that: The clamp comprises a power assembly, a lock placement base (3), a fixed clamping claw (4), a movable clamping claw (5) and a movable slide (6); the movable slide (6) is movably installed inside the lock placement base (3), and the telescopic rod (7) of the power assembly is connected to the movable slide (6); a movable opening (30) and a fixed clamping claw (4) are provided on one side of the lock placement base (3), the movable clamping claw (5) passes through the movable opening (30) and is connected to the movable slide (6), the size of the movable clamping claw (5) is smaller than the movable opening (30), the distance between the nearest edge of the fixed clamping claw (4) and the movable opening (30) is smaller than the size of the lock shaft, and the distance between the farthest edge and the fixed clamping claw (4) is greater than the size of the lock shaft.

2. A clamp for lock processing according to claim 1, characterized in that: The lock placement base (3) is provided with a limiting structure (31) matching the shape of the lock (8).

3. A clamp for lock processing according to claim 1, characterized in that: A bottom plate (2) is installed on one side of the lock placement base (3), and the power component is installed on the bottom plate (2).

4. A clamp for lock processing according to claim 1, characterized in that: The movable sliding seat (6) is provided with a groove (60), and the movable claw (5) is embedded in the groove (60).

5. The clamp for lock processing according to claim 1, characterized in that: The moving range of the movable slide (6) is smaller than the size of the movable opening (30) in the moving direction of the movable slide (6).

6. A clamp for lock processing according to claim 1, characterized in that: The power component is a cylinder (1).

7. A clamp for lock processing according to claim 6, characterized in that: The wall of the cylinder (1) is closely attached to the side of the lock placement base (3).

8. A clamp for lock processing according to claim 6, characterized in that: The telescopic rod (7) of the cylinder (1) is located inside the lock placement base (3).

9. A clamp for lock processing according to claim 6, characterized in that: A locking release switch is installed on the cylinder (1).

10. A clamp for lock processing according to claim 1, characterized in that: The fixed clamping claw (4) and the movable clamping claw (5) are provided with anti-slip patterns.

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