Multifunctional clamp on wood-working machine

By using a servo motor-driven synchronous transmission rotary mechanism with a gear and rack assembly and a fine-tuning structure, the problems of slow speed, low precision, and high cost in synchronous rotation control of CNC woodworking machinery fixtures have been solved, realizing a high-efficiency, low-cost, multi-functional fixture design.

CN224130032UActive Publication Date: 2026-04-17GANZHOU NANKANG JUHAI FURNITURE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANZHOU NANKANG JUHAI FURNITURE CO LTD
Filing Date
2026-03-20
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

When machining irregularly shaped workpieces, especially curved surfaces, existing CNC woodworking machinery suffers from problems such as slow manual adjustment speed, low accuracy, and high cost due to the synchronous rotation control method of the fixture.

Method used

A synchronous transmission rotary mechanism driven by a servo motor is used to achieve synchronous rotation of the fixture through a sliding base plate, a first gear and rack assembly, and a second gear and rack assembly. The gear and rack structure and fine-tuning structure are used to improve adjustment accuracy and efficiency.

Benefits of technology

It achieves synchronous rotation of multiple fixtures, improves adjustment accuracy and ease of operation, reduces costs, and saves 80% of servo motor usage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224130032U_ABST
    Figure CN224130032U_ABST
Patent Text Reader

Abstract

According to the multifunctional clamp on the wood-working machine, one servo motor can simultaneously drive a plurality of sets of clamps to synchronously rotate, a transmission structure is a simple gear and rack combination, the structure is simple, the adjusting precision is high, operation is very convenient, meanwhile, one servo motor can drive a plurality of clamps, 80% of servo motors can be saved, and the cost is reduced. The manufacturing cost is low.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of machinery, specifically a multi-functional clamp for woodworking machinery. Background Technology

[0002] In the existing technology, when CNC woodworking machinery processes irregularly shaped workpieces, especially curved surfaces, it is often necessary to use a fixture to hold the workpiece and coordinate with the cutting tool to rotate synchronously. Currently, the methods for controlling the synchronous rotation of the fixture are mostly manual adjustment or individual adjustment of the servo motor. Manual adjustment is slow and has low precision, while servo motor adjustment requires one servo motor to adjust one fixture, which is costly and cumbersome to debug. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-functional clamp for woodworking machinery that is simple in structure, has high adjustment accuracy, and is inexpensive.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a multifunctional clamp for woodworking machinery, comprising a servo motor, a clamp, a clamp mounting bracket, and a synchronous transmission rotation mechanism. The servo motor drives the clamp to rotate via the synchronous transmission rotation mechanism. The synchronous transmission rotation mechanism includes a sliding base plate, a first gear and rack assembly, and a second gear and rack assembly. The sliding base plate is slidably mounted on the clamp mounting bracket via a slide rail. The first gear and rack assembly includes a first gear and a first rack that can mesh and transmit power. The first gear is mounted on the servo motor, and the first rack is fixedly mounted on the sliding base plate. The second gear and rack assembly includes a second gear and a second rack that can mesh and transmit power. The second gear is fixedly connected to the clamp, and the second rack is mounted on the sliding base plate via a fine-tuning structure. Driving the servo motor causes the first gear to rotate and drive the first rack to move left and right. The first rack drives the sliding base plate to move left and right on the slide rail. The second rack moves left and right with the sliding base plate and drives the second gear to rotate. The second gear drives the clamp to rotate.

[0005] As a further description of the above technical solution, the fine-tuning structure includes a rack base and an adjusting rod base located on the lower side of the rack base. The rack base is mounted on a sliding seat plate that can move up and down. The second rack is fixedly mounted on the rack base. An adjusting rod is mounted on the adjusting rod base, and the upper end of the adjusting rod abuts against the lower end of the rack base.

[0006] As a further description of the above technical solution, the fixture is provided with several sets, and several second gear rack assemblies are provided at the locations corresponding to the fixture.

[0007] As a further description of the above technical solution, the clamp is rotatably mounted on the clamp mounting bracket at its end, and the second gear is coaxially fixed to the end of the clamp.

[0008] As a further description of the above technical solution, the slide rail is provided with at least two rails.

[0009] The multifunctional clamp for woodworking machinery provided by this utility model has the following advantages over the prior art:

[0010] Compared with the prior art, the present invention provides a multi-functional clamp for woodworking machinery. One servo motor can drive multiple clamps to rotate synchronously. The transmission structure is a simple gear and rack structure, which is simple in structure, has high adjustment accuracy and is very convenient to operate. At the same time, one servo motor can drive multiple clamps, which can save 80% of servo motors and reduce manufacturing costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0012] Figure 2 for Figure 1 A magnified structural diagram of A in the middle. Detailed Implementation

[0013] Reference Figure 1 , Figure 2 A multi-functional clamp for woodworking machinery includes a servo motor 1, a clamp 2, a clamp mounting bracket 3, and a synchronous transmission rotation mechanism 4. The servo motor 1 drives the clamp 2 to rotate via the synchronous transmission rotation mechanism 4. The synchronous transmission rotation mechanism 4 includes a sliding base plate 41, a first gear and rack assembly 42, and a second gear and rack assembly 43. The sliding base plate 41 is slidably mounted on the clamp mounting bracket 3 via two parallel slide rails 5. The first gear and rack assembly 42 includes a meshable first gear 421 and a first rack 422. The first gear 421 is mounted on the servo motor 1, and the first rack 422 is fixedly mounted on the sliding base plate 41. Component 43 includes a second gear 431 and a second rack 432 that can mesh and transmit power. The second gear 431 is fixedly connected to the clamp 2, and the second rack 432 is mounted on the sliding seat plate 41 through a fine-tuning structure 48. When the clamp 2 is driven to rotate, the servo motor 1 is driven first, and the first gear 421 rotates accordingly and drives the meshing first rack 422 to move left and right linearly. The first rack 422 drives the sliding seat plate 41 to move left and right linearly on the slide rail 5. The second rack 432 moves left and right linearly with the sliding seat plate 41 and drives the second gear 431 to rotate. The second gear 431 drives the clamp 2 to rotate. Its structure is simple, the adjustment accuracy is high, the operation is very convenient, and the cost is low.

[0014] The fine-tuning structure 48 includes a rack base 481 and an adjusting rod base 482 located below the rack base 481. The rack base 481 has waist-shaped holes on both sides, which are vertically arranged. Screws are installed in the waist-shaped holes to allow the rack base 481 to be movably mounted on the sliding seat plate 41. The second rack 432 is fixedly mounted on the rack base 481. An adjusting rod 483 is mounted on the adjusting rod base 482 and is threadedly connected to the adjusting rod base 482. When a fine upward adjustment is needed, the adjusting rod 483 is rotated clockwise, and the upper end of the adjusting rod 483 abuts against the lower end of the rack base 481, pushing the rack base 481 to move upward. The clamp 2 is rotatably mounted on the clamp mounting bracket 3 through its end, and the second gear 431 is coaxially fixed on the end of the clamp 2.

[0015] To improve work efficiency, multiple sets of clamps 2 can be set at the same time. Multiple sets of second gear rack assemblies 43 are also set at the corresponding positions of clamps 2. When the sliding seat plate 41 moves left and right linearly on the slide rail 5, it can drive multiple sets of clamps 2 to rotate at the same time, which effectively improves work efficiency.

[0016] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-functional clamp on a woodworking machine, characterized by: The system includes a servo motor (1), a clamp (2), a clamp mounting bracket (3), and a synchronous transmission rotation mechanism (4). The servo motor (1) drives the clamp (2) to rotate via the synchronous transmission rotation mechanism (4). The synchronous transmission rotation mechanism (4) includes a sliding base plate (41), a first gear and rack assembly (42), and a second gear and rack assembly (43). The sliding base plate (41) is slidably mounted on the clamp mounting bracket (3) via a slide rail (5). The first gear and rack assembly (42) includes a meshable first gear (421) and a first rack (422). The first gear (421) is mounted on the servo motor (1), and the first rack (422) is fixedly mounted on the sliding base plate. On the plate (41), the second gear and rack assembly (43) includes a second gear (431) and a second rack (432) that can mesh and transmit power. The second gear (431) is fixedly connected to the clamp (2). The second rack (432) is mounted on the sliding seat plate (41) through the fine-tuning structure (48) and drives the servo motor (1). The first gear (421) rotates accordingly and drives the first rack (422) to move left and right. The first rack (422) drives the sliding seat plate (41) to move left and right on the slide rail (5). The second rack (432) moves left and right with the sliding seat plate (41) and drives the second gear (431) to rotate. The second gear (431) drives the clamp (2) to rotate.

2. A multi-functional clamp for woodworking machines as claimed in claim 1, wherein: The fine-tuning structure (48) includes a rack base (481) and an adjusting rod base (482) located below the rack base (481). The rack base (481) is mounted on the sliding seat plate (41) and can move up and down. The second rack (432) is fixedly mounted on the rack base (481). An adjusting rod (483) is mounted on the adjusting rod base (482). The upper end of the adjusting rod (483) abuts against the lower end of the rack base (481).

3. A multi-functional clamp for woodworking machines as claimed in claim 2, wherein: The clamp (2) is provided with several sets, and several second gear rack assemblies (43) are provided at the corresponding positions of the clamp (2).

4. A multi-functional clamp for woodworking machines as claimed in claim 3, wherein: The clamp (2) is rotatably mounted on the clamp mounting bracket (3) at its end, and the second gear (431) is coaxially fixed on the end of the clamp (2).

5. A multi-functional clamp for woodworking machines as claimed in claim 4, wherein: The slide rail (5) has at least two rails.