Fixture for precision machining

By designing a precision machining fixture with a slide rail seat, a drive motor and an adjustable clamping clamp, the problem that existing fixtures cannot adapt to workpieces of different shapes is solved, and flexible clamping and fixing of round, square and arc-shaped workpieces are achieved, and processing efficiency and quality are improved.

CN223000150UActive Publication Date: 2025-06-20WUHAN HONGJUN SIWEI TECH CO LTD
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Patent Information

Application Number
CN202422198929.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2025-06-20
Estimated Expiration
2034-09-06

AI Technical Summary

Technical Problem

Existing mechanical machining fixtures cannot be adapted and clamped according to workpieces of different shapes, resulting in the need to replace the fixtures when processing circular or square parts, which is more troublesome to operate.

Method used

A precision mechanical processing fixture is designed to realize the left and right displacement of the clamping clamp through structures such as slide rail seats, drive motors, threaded rods and mobile seats, and adjust the clamping spacing through internal teeth locking the telescopic rods and arc clamps to adapt to workpieces of different shapes.

Benefits of technology

It realizes flexible clamping and fixing of workpieces of different shapes, simple and convenient operation, and improves processing efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a precision machining clamp which comprises a mounting frame plate, sliding rail seats are symmetrically and fixedly connected to one side of the outer portion of the mounting frame plate, threaded rods are rotatably connected to the interiors of the sliding rail seats, bearings are symmetrically and rotatably connected to the outer sides of the threaded rods, one end of each threaded rod is rotatably connected with a driving motor, and the other end of each threaded rod is rotatably connected with a bearing. A sliding rail seat is fixedly connected to the outer side of the threaded rod, a movable seat is rotatably connected to the outer side of the threaded rod, a mounting seat is fixedly connected to one side of the movable seat, a supporting rod is fixedly connected to one side of the mounting seat, and a clamping hoop is fixedly connected to one end of the supporting rod. The threaded rod is rotationally connected with the moving seat in the sliding rail seat, through rotation of the threaded rod, the moving seat can drive the mounting seat, the supporting rod, the clamping hoop and other structures to move left and right, and through displacement of the clamping hoop, the effect of clamping and fixing a to-be-machined part placed on the top of the machining table plate is achieved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of machining fixtures, and particularly relates to a fixture for precision machining. Background Art

[0002] A fixture for precision machining is a special tool used to fix, position and support workpieces during the machining process. Its main function is to ensure the positioning accuracy and stability of the workpiece during the machining process, so as to guarantee the machining quality.

[0003] Some existing machining fixtures cannot be adaptively clamped according to workpieces with different shapes during use. When machining circular or square workpieces, it is necessary to replace the machining fixture to fix workpieces with different shapes, and the operation is rather troublesome. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a fixture for precision machining, so as to solve the problem that some existing machining fixtures cannot be adaptively clamped according to workpieces with different shapes during use. When machining circular or square workpieces, it is necessary to replace the machining fixture to fix workpieces with different shapes, and the operation is rather troublesome as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A fixture for precision machining, including a mounting frame plate. On one side of the outer part of the mounting frame plate, slide rail seats are symmetrically and fixedly connected. Inside the slide rail seats, threaded rods are rotatably connected. On the outer side of the threaded rods, bearings are symmetrically rotatably connected. One end of the threaded rod is rotatably connected to a driving motor. On the outer side of the threaded rod, a moving seat is rotatably connected. On one side of the moving seat, a mounting seat is fixedly connected. On one side of the mounting seat, a support rod is fixedly connected. One end of the support rod is fixedly connected to a clamping collar. On one side inside the clamping collar, an internally toothed locking telescopic rod is fixedly connected. On the other side inside the clamping collar, a spring is fixedly connected. One end of the internally toothed locking telescopic rod and the spring are both fixedly connected to an arc-shaped clamp. On the upper end of one side outside the clamping collar, a limiting top plate is fixedly connected.

[0006] Preferably, a scale is fixedly connected to the upper end of one side of the mounting frame plate.

[0007] Preferably, one side of the bearing is fixedly connected to the inner side of the slide rail seat.

[0008] Preferably, one end of the threaded rod penetrates through one side inside the slide rail seat.

[0009] Preferably, one side of the driving motor is fixedly connected to the outer side of one side of the slide rail seat.

[0010] Preferably, a groove is provided inside the clamping collar.

[0011] Preferably, a reinforcement seat is fixedly connected to the outer side of one end of the spring.

[0012] Preferably, a processing table board is fixedly connected to the lower end of the outer side of the mounting frame board near the slide rail seat.

[0013] Compared with the prior art, the present utility model provides a fixture for precision machining, having the following beneficial effects:

[0014] 1. By providing a slide rail seat in the present utility model, the driving motor drives the threaded rod. The threaded rod is rotatably connected to the moving seat inside the slide rail seat. Through the rotation of the threaded rod, the moving seat can drive structures such as the mounting seat, the support rod, and the clamping collar to move left and right. Through the displacement of the clamping collar, the effect of clamping and fixing the workpiece to be processed placed on the top of the processing table board is achieved. An inner tooth locking telescopic rod and a spring are provided inside the clamping collar. A clamping tooth is provided inside the inner tooth locking telescopic rod. By adjusting the length of the inner tooth locking telescopic rod through the clamping tooth, the distance between the arc-shaped collar and the clamping collar can be adjusted. When clamping a workpiece with an arc-shaped outer surface, the inner tooth locking telescopic rod is stretched to the outside of the clamping collar, and the workpiece is clamped by the arc-shaped collar. When clamping and fixing a workpiece with an angular shape, the arc-shaped collar is retracted into the groove, and the workpiece is limited and fixed by the clamping collar and the limit top plate. The overall operation is simple and convenient.

[0015] 2. By providing a scale in the present utility model, the scale helps to perform alignment adjustment on the position where the workpiece is placed, so that the workpiece is fixed at a suitable position for machining work.

[0016] Parts not involved in the device are the same as or can be implemented using the prior art. The structure of the present utility model is scientific and reasonable, safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is an axonometric structural schematic diagram of a fixture for precision machining proposed by the present utility model;

[0019] Figure 2 is Figure 1 an enlarged structural schematic diagram of part A of

[0020] Figure 3Front view structural schematic diagram of a fixture for precision machining proposed by the present utility model;

[0021] Figure 4 Side view vertical sectional structural schematic diagram of a fixture for precision machining proposed by the present utility model;

[0022] Figure 5 is Figure 4 Enlarged structural schematic diagram at position B of

[0023] Figure 6 Front view vertical sectional structural schematic diagram of a fixture for precision machining proposed by the present utility model;

[0024] Figure 7 is Figure 6 Enlarged structural schematic diagram at position C of

[0025] In the figure: mounting frame plate 1, scale 2, slide rail base 3, drive motor 4, threaded rod 5, bearing 6, moving seat 7, mounting seat 8, support rod 9, clamping collar 10, groove 11, internal tooth locking telescopic rod 12, spring 13, reinforcement base 14, arc-shaped clamp 15, machining table plate 16, limit top plate 17. Specific implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figure 1-7, the present utility model provides a technical solution: a fixture for precision machining, including a mounting frame plate 1. On one side of the outside of the mounting frame plate 1, slide rail seats 3 are symmetrically and fixedly connected. Inside the slide rail seats 3, threaded rods 5 are rotatably connected. On the outside of the threaded rods 5, bearings 6 are symmetrically rotatably connected. One end of the threaded rod 5 is rotatably connected to a driving motor 4. On the outside of the threaded rod 5, a moving seat 7 is rotatably connected. On one side of the moving seat 7, a mounting seat 8 is fixedly connected. On one side of the mounting seat 8, a support rod 9 is fixedly connected. One end of the support rod 9 is fixedly connected to a clamping clamp 10. On one side inside the clamping clamp 10, an internally toothed locking telescopic rod 12 is fixedly connected. On the other side inside the clamping clamp 10, a spring 13 is fixedly connected. One ends of the internally toothed locking telescopic rod 12 and the spring 13 are both fixedly connected to an arc-shaped clamp 15. On the upper end of one side outside the clamping clamp 10, a limit top plate 17 is fixedly connected. The driving motor 4 drives the threaded rod 5. The threaded rod 5 is rotatably connected to the moving seat 7 inside the slide rail seat 3. Through the rotation of the threaded rod 5, the moving seat 7 can drive structures such as the mounting seat 8, the support rod 9, and the clamping clamp 10 to move left and right. Through the displacement of the clamping clamp 10, the effect of clamping and fixing the workpiece placed on the top of the processing table plate 16 is achieved. Inside the clamping clamp 10, an internally toothed locking telescopic rod 12 and a spring 13 are provided. Inside the internally toothed locking telescopic rod 12, engaging teeth are provided. By adjusting the length of the telescopic movement of the internally toothed locking telescopic rod 12 through the engaging teeth, the adjustment of the distance between the arc-shaped clamp 15 and the clamping clamp 10 can be realized. When clamping a workpiece with an arc-shaped outer surface, the internally toothed locking telescopic rod 12 is stretched to the outside of one side of the clamping clamp 10, and the workpiece is clamped by the arc-shaped clamp 15. When clamping and fixing a workpiece with an angular shape, the arc-shaped clamp 15 is retracted into the groove 11, and the workpiece is limited and fixed by the clamping clamp 10 and the limit top plate 17. The overall operation is simple and convenient.

[0028] In the present utility model, preferably, a scale 2 is fixedly connected to the upper end of one side of the mounting frame plate 1. The scale 2 helps to perform alignment adjustment on the position where the workpiece is placed, so that the workpiece is fixed at a suitable position for processing work.

[0029] In the present utility model, preferably, one side of the bearing 6 is fixedly connected to the inner side of the slide rail seat 3.

[0030] In the present utility model, preferably, one end of the threaded rod 5 penetrates through one side inside the slide rail seat 3.

[0031] In the present utility model, preferably, one side of the driving motor 4 is fixedly connected to the outside of one side of the slide rail seat 3.

[0032] In the present utility model, preferably, a groove 11 is provided inside the clamping clamp 10.

[0033] In the present utility model, preferably, a reinforcement base 14 is fixedly connected to the outer side of one end of the spring 13.

[0034] In the present utility model, preferably, a processing table plate 16 is fixedly connected to the lower end of the outer side of the mounting frame plate 1 near the slide rail base 3.

[0035] The working principle and usage process of the present utility model: During use, by setting the slide rail base 3, the driving motor 4 drives the threaded rod 5. The threaded rod 5 is rotatably connected to the moving seat 7 inside the slide rail base 3. Through the rotation of the threaded rod 5, the moving seat 7 can drive structures such as the mounting seat 8, the support rod 9, and the clamping clamp 10 to move left and right. Through the displacement of the clamping clamp 10, the effect of clamping and fixing the workpiece to be processed placed on the top of the processing table plate 16 is achieved. An inner tooth locking telescopic rod 12 and a spring 13 are arranged inside the clamping clamp 10. A clamping tooth is arranged inside the inner tooth locking telescopic rod 12. By adjusting the length of the inner tooth locking telescopic rod 12 through the clamping tooth, the adjustment of the distance between the arc-shaped clamp 15 and the clamping clamp 10 can be realized. When clamping a workpiece with an arc-shaped outer surface, the inner tooth locking telescopic rod 12 is stretched to the outer side of the clamping clamp 10, and the workpiece is clamped by the arc-shaped clamp 15. When clamping and fixing a workpiece with an angular shape, the arc-shaped clamp 15 is retracted into the groove 11, and the workpiece is limited and fixed by the clamping clamp 10 and the limit top plate 17. The overall operation is simple and convenient. By setting the scale 2, the scale 2 helps to perform alignment adjustment on the position where the workpiece is placed, so that the workpiece is fixed in a suitable position for processing work.

[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fixture for precision machining, comprising a mounting plate (1), characterized in that: A slide rail seat (3) is symmetrically fixedly connected to one side of the outside of the mounting frame plate (1), a threaded rod (5) is rotatably connected inside the slide rail seat (3), a bearing (6) is symmetrically rotatably connected to the outside of the threaded rod (5), one end of the threaded rod (5) is rotatably connected to a drive motor (4), the outside of the threaded rod (5) is rotatably connected to a moving seat (7), one side of the moving seat (7) is fixedly connected to a mounting seat (8), one side of the mounting seat (8) is fixedly connected to a support rod (9), one end of the support rod (9) is fixedly connected to a clamping clamp (10), one side of the inside of the clamping clamp (10) is fixedly connected to an internal tooth locking telescopic rod (12), the other side of the inside of the clamping clamp (10) is fixedly connected to a spring (13), one end of the internal tooth locking telescopic rod (12) and the spring (13) are both fixedly connected to an arc clamp (15), and the upper end of one side of the outside of the clamping clamp (10) is fixedly connected to a limited top plate (17).

2. A precision machining fixture according to claim 1, characterized in that: A scale (2) is fixedly connected to the upper end of one side of the mounting frame plate (1).

3. A precision machining fixture according to claim 1, characterized in that: One side of the bearing (6) is fixedly connected to the inner side of the slide rail seat (3).

4. The precision machining fixture according to claim 1, characterized in that: One end of the threaded rod (5) passes through one side of the interior of the slide rail seat (3).

5. The precision machining fixture according to claim 1, characterized in that: One side of the driving motor (4) is fixedly connected to one side outside the slide rail seat (3).

6. The precision machining fixture according to claim 1, characterized in that: A groove (11) is provided inside the clamping hoop (10).

7. The precision machining fixture according to claim 1, characterized in that: A reinforcement seat (14) is fixedly connected to the outer side of one end of the spring (13).

8. The precision machining fixture according to claim 1, characterized in that: A processing table plate (16) is fixedly connected to the lower end of the outside of the mounting frame plate (1) close to the slide rail seat (3).