Machining fixing clamp

By using a servo motor-driven rack and pinion system and a lead screw to adjust the position of the clamping block, combined with an automatic waste removal function, the problem of existing fixtures being unable to adapt to the shape of parts and the waste removal is solved, thus improving processing efficiency and quality.

CN224088459UActive Publication Date: 2026-04-07PINGHU HEQI HEAVY MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing machining fixtures cannot adjust the position of the clamping blocks according to the shape of the part, which causes the part to loosen and leaves residual waste after machining, affecting subsequent processing.

Method used

The system uses a servo motor to drive the active gear and rack system to adjust the position of the clamping block, and achieves precise clamping through the lead screw and threaded sleeve. Combined with the reciprocating lead screw and cleaning brush, it automatically cleans up waste materials.

Benefits of technology

It achieves a tight fit between the fixture and the part, preventing loosening, improving processing efficiency and quality, while automatically cleaning up waste materials, keeping the processing table clean, and reducing manual workload.

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Abstract

The utility model discloses a machining stationary fixture, which relates to the technical field of machining, and comprises a machining table, the inner side of the machining table is fixedly connected with a servo motor close to the lower end, the output end of the servo motor is fixedly connected with a driving gear, the two sides of the driving gear are meshed and connected with racks, and the two groups of racks are slidably connected to the machining table. The upper sides of one ends of the two sets of racks are fixedly connected with connecting blocks, the upper ends of the connecting blocks are fixedly connected with clamps, sliding grooves are formed in the positions, close to the connecting blocks, of the machining table, and the connecting blocks are slidably connected to the sliding grooves. A manual wheel is adjusted to drive a threaded sleeve to move in an adjusting groove, the threaded sleeve drives a clamping block to move, so that the clamping block is matched with a clamped place, then a servo motor is started, the servo motor drives a driving gear to rotate, the driving gear drives a rack to move, and the rack drives a connecting block to move in a sliding groove.
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Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically a machining fixture. Background Technology

[0002] Machining refers to the technological process of directly altering the shape, size, relative position, and properties of a blank to transform it into a qualified part. The machining process directly determines the quality of parts and mechanical products, significantly impacting product cost and productivity. During machining, workpieces need to be fixed using fixtures to improve stability during the machining process.

[0003] The above-mentioned utility model has the following problems:

[0004] 1. Existing machining fixtures cannot adjust the position of the clamping blocks according to the shape of the machine parts to ensure that the clamping blocks and the clamping area fit together, thus preventing the machine parts from becoming loose during machining. Furthermore, the clamping table after machining has residual waste material, which, if not cleaned, will affect subsequent machining of machine parts.

[0005] Therefore, those skilled in the art have provided a machining fixture to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this utility model is to provide a machining fixture to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A machining fixture includes a machining table. A servo motor is fixedly connected to the inner side of the machining table near its lower end. A drive gear is fixedly connected to the output end of the servo motor. Racks are meshed on both sides of the drive gear, and the two racks are slidably connected to the machining table. A connecting block is fixedly connected to the upper side of one end of each rack, and a fixture is fixedly connected to the upper end of the connecting block.

[0009] As a further embodiment of this utility model: the processing table is provided with a sliding groove near the connecting block, and the connecting block is slidably connected to the sliding groove. Two sets of lead screws are rotatably connected through the upper side of the fixture. One end of the lead screw is fixedly connected to an adjusting wheel, and the other end of the lead screw is rotatably connected to the inner side of the fixture. A threaded sleeve is threaded on the outer side of the lead screw, and a clamping block is fixedly connected to one end of the threaded sleeve.

[0010] As a further embodiment of this utility model: the clamp is provided with an adjustment groove near the threaded sleeve, and the threaded sleeve is slidably connected to the adjustment groove. A clamping platform is fixedly connected to the middle of the upper end of the processing table, and a reciprocating lead screw is rotatably connected through one side of the clamping platform.

[0011] As a further embodiment of this utility model: one end of the reciprocating lead screw is fixedly connected to a manual wheel, the other end of the reciprocating lead screw is rotatably connected to the inner side of the clamping table, and a slide rod is fixedly connected to the inner side of the other side of the clamping table.

[0012] As a further embodiment of this utility model: the reciprocating lead screw passes through one side of the threaded connection moving rod, and the slide rod passes through the other side of the sliding connection moving rod.

[0013] As a further improvement of this utility model: a cleaning brush is fixedly connected to the lower end of the moving rod, a collection groove is provided on the processing table near the clamping table, and a collection box is slidably connected to the inner side of the collection groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Before processing, the adjusting wheel is rotated according to the shape of the part. The adjusting wheel drives the lead screw and threaded sleeve to move, thereby adjusting the clamping position of the clamping block and the part. Then, the servo motor is started, which drives the drive gear to rotate. The drive gear drives the rack to move, and the rack drives the connecting block to move in the slide groove. Finally, the clamping fixture moves closer to the clamping table, so that the clamping block firmly clamps the part. Through the linkage of lead screw adjustment and servo motor, the position of the clamping block can be precisely adjusted according to the shape of the part, ensuring a tight fit between the clamping fixture and the part and preventing the part from loosening during processing. The precise adjustment function allows the clamping fixture to adapt to parts of various shapes, improving processing efficiency and quality.

[0016] 2. After the parts are machined, scrap may remain on the clamping table. Rotating the manual wheel drives the reciprocating screw to rotate, which in turn moves the moving rod. The cleaning brush slides to remove the scrap from the clamping table. The removed scrap falls into a collection box in the collection trough. When the collection box is full, the user can remove it and empty the scrap, preventing scrap accumulation from affecting subsequent processing. The efficient collection and cleaning of scrap reduces manual cleaning workload, keeps the machining table clean, and improves the accuracy and quality of subsequently machined parts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a machining fixture.

[0018] Figure 2 This is a schematic diagram of the structure of a fixture in a machining fixture.

[0019] Figure 3 This is a cross-sectional schematic diagram of a servo motor drive structure in a machining fixture.

[0020] Figure 4 A type of machining fixture Figure 1 A magnified schematic diagram of the structure of A in the middle.

[0021] In the diagram: 1. Machining table, 2. Servo motor, 3. Drive gear, 4. Rack, 5. Connecting block, 6. Slide groove, 7. Fixture, 8. Adjustment groove, 9. Lead screw, 10. Adjustment wheel, 11. Clamping block, 12. Clamping table, 13. Reciprocating lead screw, 14. Manual wheel, 15. Slide rod, 16. Moving rod, 17. Cleaning brush, 18. Threaded sleeve, 19. Collection groove, 20. Collection box. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Reference Figure 1 , 2 3. This embodiment provides a machining fixture, including a machining table 1. A servo motor 2 is fixedly connected to the inner side of the machining table 1 near its lower end. A drive gear 3 is fixedly connected to the output end of the servo motor 2. Both sides of the drive gear 3 are meshed with racks 4, and the two sets of racks 4 are slidably connected to the machining table 1. A connecting block 5 is fixedly connected to the upper side of one end of each set of racks 4. A fixture 7 is fixedly connected to the upper end of the connecting block 5. A sliding groove 6 is opened on the machining table 1 near the connecting block 5, and the connecting block 5 is slidably connected to the sliding groove 6. Two sets of lead screws 9 are rotatably connected to the upper side of the fixture 7. An adjusting wheel 10 is fixedly connected to one end of the lead screw 9, and the other end of the lead screw 9 is rotatably connected to the inner side of the fixture 7. A threaded sleeve 18 is threaded on the outer side of the lead screw 9. A clamping block 11 is fixedly connected to one end of the threaded sleeve 18. An adjustment groove 8 is opened near the threaded sleeve 18, and the threaded sleeve 18 is slidably connected to the adjustment groove 8. When it is necessary to process the mechanical parts, firstly, according to the shape of the mechanical parts, the adjustment wheel is rotated. The adjustment wheel drives the threaded sleeve to move in the adjustment groove. The threaded sleeve drives the clamping block to move, so that the clamping block and the clamping place match each other. Then, the servo motor is started. The servo motor drives the drive gear to rotate. The drive gear drives the rack to move. The rack drives the connecting block to move in the slide groove. The connecting block drives the clamp to move closer to the clamping table, so that the clamping block firmly clamps the mechanical parts.

[0025] Example 2

[0026] Reference Figure 1 , 4This embodiment is based on the previous embodiment, but differs in that a clamping platform 12 is fixedly connected to the upper middle of the processing table 1. A reciprocating lead screw 13 is rotatably connected to one side of the clamping platform 12. A manual wheel 14 is fixedly connected to one end of the reciprocating lead screw 13, and the other end of the reciprocating lead screw 13 is rotatably connected to the inner side of the clamping platform 12. A sliding rod 15 is fixedly connected to the inner side of the other side of the clamping platform 12. The reciprocating lead screw 13 is threadedly connected to one side of a moving rod 16, and the sliding rod 15 is slidably connected to the other side of the moving rod 16. A cleaning brush 17 is fixedly connected to the lower end of the moving rod 16. A collection trough 19 is provided near the clamping table 12, and a collection box 20 is slidably connected to the inner side of the collection trough 19. After the mechanical parts are processed, a large amount of waste remains on the clamping table. Then, the manual wheel is rotated, which drives the reciprocating screw to rotate. The reciprocating screw drives the moving rod to move. The other side of the moving rod slides on the slide bar. The moving rod drives the cleaning brush on the lower side to clean the waste on the clamping table, causing the waste to fall into the collection box in the collection trough for collection. When a certain amount of waste is collected in the collection box, the collection box is slid out from the collection trough and the waste in the collection box is cleaned out.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A machining fixture, comprising a machining table (1), characterized in that, A servo motor (2) is fixedly connected to the inner side of the processing table (1) near the lower end. A drive gear (3) is fixedly connected to the output end of the servo motor (2). Both sides of the drive gear (3) are meshed with racks (4), and the two sets of racks (4) are slidably connected to the processing table (1). A connecting block (5) is fixedly connected to the upper side of one end of the two sets of racks (4). A clamp (7) is fixedly connected to the upper end of the connecting block (5). A slide groove (6) is opened on the processing table (1) near the connecting block (5), and the connecting block (5) is slidably connected to the slide groove (6). Two sets of lead screws (9) are rotatably connected to the upper side of the clamp (7). An adjusting wheel (10) is fixedly connected to one end of the lead screw (9), and the other end of the lead screw (9) is rotatably connected to the inner side of the clamp (7). A threaded sleeve (18) is threaded on the outer side of the lead screw (9), and a clamping block (11) is fixedly connected to one end of the threaded sleeve (18).

2. The machining fixture according to claim 1, characterized in that, The processing table (1) has a clamping table (12) fixedly connected to the middle of its upper end. A reciprocating screw (13) is rotatably connected through one side of the clamping table (12). A manual wheel (14) is fixedly connected to one end of the reciprocating screw (13), and the other end of the reciprocating screw (13) is rotatably connected to the inner side of the clamping table (12). A slide rod (15) is fixedly connected to the inner side of the other side of the clamping table (12).

3. A machining fixture according to claim 2, characterized in that, The reciprocating lead screw (13) passes through one side of the threaded connecting moving rod (16), and the slide rod (15) passes through the other side of the sliding connecting moving rod (16).

4. A machining fixture according to claim 3, characterized in that, A cleaning brush (17) is fixedly connected to the lower end of the movable rod (16).

5. A machining fixture according to claim 1, characterized in that, The processing table (1) has a collection groove (19) near the clamping table (12), and a collection box (20) is slidably connected to the inner side of the collection groove (19).

6. A machining fixture according to claim 1, characterized in that, The clamp (7) has an adjustment groove (8) near the threaded sleeve (18), and the threaded sleeve (18) is slidably connected to the adjustment groove (8).