Low-friction multi-angle workpiece defining support device

By adjusting the structure and limiting the structure, the support rollers are kept in surface contact with the tapered surface of the workpiece, which solves the problem of easy damage to the tapered workpiece surface of traditional support devices and improves the practicality of the support device.

CN224544301UActive Publication Date: 2026-07-24NANTONG GEMAI CNC MASCH TOOL MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG GEMAI CNC MASCH TOOL MFG CO LTD
Filing Date
2025-07-03
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

When the workpiece surface is tapered, the traditional support device changes the contact between the surface and the support arm from surface contact to line contact, which increases the pressure on the workpiece surface, easily damages the workpiece surface, and reduces the practicality of the support device.

Method used

By employing an adjustment structure, a limiting structure, and a support structure, and through the cooperation of teeth and gears, the angle of the support structure can be adjusted, so that the support roller maintains surface contact with the tapered surface of the workpiece, thereby reducing friction.

Benefits of technology

By using a multi-angle support structure, the pressure on the workpiece surface is reduced, damage is avoided, and the practicality of the support device is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to supporting device technical field especially is a kind of low-friction multi-angle workpiece limited supporting device, including lower frame body, still including upper frame body, adjusting structure, limiting structure and supporting structure, adjusting structure includes arc block, the inner surface fixedly connected with tooth of arc block, the outer surface fixedly connected with first fixed seat of upper frame body, the side surface swing joint of first fixed seat has gear, the connecting end of gear is fixedly connected with handlebar through the side of first fixed seat, limiting structure includes second fixed seat, the lower surface of second fixed seat is fixedly connected with the outer surface of upper frame body, the inside swing joint of second fixed seat has limit rod, the one end of limit rod is connected with limit block, the side surface of handlebar is set with limit slot, the utility model can adjust angle when needing, and always keep surface contact with workpiece, reduce the pressure that workpiece surface receives, avoid workpiece surface damage, improve the practicality of supporting device.
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Description

Technical Field

[0001] This utility model relates to the field of support device technology, specifically a low-friction multi-angle workpiece limiting support device. Background Technology

[0002] Workpiece limiting support devices are used in industrial scenarios such as machining and assembly to fix and support workpieces and precisely limit their position and posture. Their core function is to ensure that the workpiece remains stable during processing or operation, and to avoid the impact of displacement, vibration and other factors on accuracy and quality. They are key tooling for ensuring processing accuracy and stability in industrial manufacturing.

[0003] Traditional support devices have a relatively fixed frame and support arm, and the support arm can only move in a straight line. When in use, it forms a surface contact with the flat surface of the workpiece to provide support. However, when the surface of the workpiece has a certain taper, the surface contact between the workpiece and the support arm changes to a line contact, which greatly increases the pressure on the workpiece surface, easily damages the workpiece surface, and reduces the practicality of the support device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a low-friction, multi-angle workpiece limiting support device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-friction, multi-angle workpiece limiting support device, comprising a lower frame, an upper frame, an adjustment structure, a limiting structure, and a support structure, wherein:

[0006] The adjustment structure includes an arc-shaped block, the inner surface of which is fixedly connected with teeth, the outer surface of the upper frame is fixedly connected with a first fixed seat, the side surface of the first fixed seat is movably connected with a gear, the gear meshes with the teeth, and the connecting end of the gear passes through one side of the first fixed seat and is fixedly connected with a rotating handle.

[0007] The limiting structure includes a second fixed seat, the lower surface of which is fixedly connected to the outer surface of the upper frame, a limiting rod is movably connected inside the second fixed seat, one end of the limiting rod is threadedly connected to a limiting block, and a limiting groove is formed on the side surface of the rotating handle.

[0008] As a preferred embodiment of this utility model, the support structure includes a movable seat, the side surface of which is movably connected to the interior of the upper frame, the side surface of which is fixedly connected to the side surface of the arc-shaped block, a rotating rod movably connected inside the movable seat, a support seat threadedly connected to the lower end of the rotating rod, and a support roller movably connected to the lower end of the support seat.

[0009] As a preferred embodiment of this utility model, the outer surface of the support base is provided with a support groove, and the interior of the movable base is movably connected with a support screw, one end of which is located inside the support groove.

[0010] As a preferred embodiment of this utility model, a connecting block is fixedly connected to one end of the lower frame, and the interior of the connecting block is movably connected to one end of the upper frame.

[0011] As a preferred embodiment of this utility model, the other end of the lower frame is fixedly connected to a mounting block, and the mounting block is movably connected to a movable bolt.

[0012] As a preferred technical solution of this utility model, the other end of the upper frame is fixedly connected to a mounting block, and the upper end of the movable bolt passes through the internal thread of the mounting block and is connected to a nut.

[0013] As a preferred technical solution of this utility model, the lower end of the lower frame is fixedly connected to a base, the lower surface of the base is provided with a threaded hole, and the lower surface of the base is provided with a snap-fit ​​groove.

[0014] Compared with the prior art, this utility model provides a low-friction multi-angle workpiece limiting support device, which has the following beneficial effects:

[0015] This low-friction, multi-angle workpiece limiting support device, through the adjustment structure, limiting structure, and support structure, and the cooperation between teeth and gears, allows for angle adjustment of the support structure by rotating the gears when needed. This facilitates control of the tilt angle of the support rollers by the support seat, ensuring that the contact between the tapered surface of the workpiece and the support rollers remains surface contact, reducing the pressure on the workpiece surface, preventing damage to the workpiece surface, and improving the practicality of the support device. Attached Figure Description

[0016] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;

[0018] Figure 3 This is a schematic diagram of the overall structure of the present invention from a third-view perspective;

[0019] Figure 4 This is a schematic diagram of the first-view structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the second-view portion of the structure of this utility model;

[0021] Figure 6This is an internal sectional view of the support structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the normal support state of this utility model;

[0023] Figure 8 This is a schematic diagram of the present invention with tapered shaft support.

[0024] In the diagram: 1. Lower frame; 2. Upper frame; 3. Adjustment structure; 301. Arc block; 302. Tooth; 303. First fixed seat; 304. Gear; 305. Rotating handle; 4. Limiting structure; 401. Second fixed seat; 402. Limiting rod; 403. Limiting block; 404. Limiting groove; 5. Supporting structure; 501. Movable seat; 502. Rotating rod; 503. Support seat; 504. Support roller; 505. Support slot; 506. Support screw; 6. Connecting block; 7. Mounting block; 8. Movable bolt; 9. Nut; 10. Mounting block; 11. Base; 12. Threaded hole; 13. Snap-fit ​​groove. Detailed Implementation

[0025] 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. Example 1

[0026] Please see Figure 1-8 This utility model discloses a low-friction multi-angle workpiece limiting support device, including a lower frame 1, an upper frame 2, an adjustment structure 3, a limiting structure 4, and a support structure 5. The number of the adjustment structure 3, the limiting structure 4, and the support structure 5 is three, located within the lower frame 1 and the upper frame 2, and distributed at 120-degree intervals.

[0027] The adjustment structure 3 includes an arc-shaped block 301. Teeth 302 are fixedly connected to the inner surface of the arc-shaped block 301. The teeth 302 are evenly distributed on the inner surface of the arc-shaped block 301. A first fixed seat 303 is fixedly connected to the outer surface of the upper frame 2. A gear 304 is movably connected to the side surface of the first fixed seat 303. The gear 304 meshes with the teeth 302. The rotation of the gear 304 can change the meshing position of the teeth 302. That is, the arc-shaped block 301 drives the movable seat 501 to rotate. The connecting end of the gear 304 passes through one side of the first fixed seat 303 and is fixedly connected to a handle 305. The rotation of the gear 304 can be controlled by the handle 305.

[0028] The limiting structure 4 includes a second fixed seat 401. The lower surface of the second fixed seat 401 is fixedly connected to the outer surface of the upper frame 2. A limiting rod 402 is movably connected inside the second fixed seat 401. The rotation of the limiting rod 402 can push the movement of the limiting block 403, so that the limiting block 403 moves closer to or away from the limiting groove 404. One end of the limiting rod 402 is threadedly connected to the limiting block 403. A limiting groove 404 is opened on the side surface of the rotating handle 305. When the limiting block 403 is driven into the limiting groove 404, the rotating handle 305 is locked, thereby stopping the gear 304 from rotating, which facilitates the support work of the support structure 5. When the limiting block 403 is driven out of the limiting groove 404, the rotating handle 305 can rotate, that is, the gear 304 rotates, which facilitates the adjustment of the angle of the support structure 5.

[0029] The support structure 5 includes a movable seat 501. The side surface of the movable seat 501 is movably connected to the interior of the upper frame 2. The movable seat 501 is tilted at an angle, enabling the support structure 5 to provide multi-angle support for the workpiece, thus protecting the workpiece surface. The side surface of the movable seat 501 is fixedly connected to the side surface of the arc-shaped block 301. A rotating rod 502 is movably connected inside the movable seat 501. A handle is fixedly connected to the upper end of the rotating rod 502. By rotating the rotating rod 502, the up and down movement of the support seat 503 can be controlled, thereby allowing the support roller 504 to move closer to or further away from the workpiece surface. The lower end of the rotating rod 502 is threadedly connected to the support seat 503. The lower end of the support seat 503 is movably connected to the support roller 504. The outer surface of the support roller 504 is in contact with the workpiece surface. When the workpiece is rotated, the support roller 504 is also rotated, resulting in rolling friction between the support roller 504 and the workpiece, reducing friction.

[0030] The outer surface of the support base 503 is provided with a support groove 505. The interior of the movable base 501 is movably connected with a support screw 506. One end of the support screw 506 is located inside the support groove 505. The support screw 506 can restrict the support base 503 within the support groove 505, so that the support base 503 can only move in a straight line. When the support screw 506 is tightened, one end of the support screw 506 contacts the inner surface of the support groove 505, thereby restricting the support base 503 and preventing the support base 503 from moving during the support process. Example 2

[0031] Based on the above embodiment one, please refer to the appendix. Figure 1-3 A connecting block 6 is fixedly connected to one end of the lower frame 1, and the interior of the connecting block 6 is movably connected to one end of the upper frame 2.

[0032] The other end of the lower frame 1 is fixedly connected to a mounting block 7, and the mounting block 7 is movably connected to a movable bolt 8.

[0033] The other end of the upper frame 2 is fixedly connected to the mounting block 10. The upper end of the movable bolt 8 passes through the internal thread of the mounting block 10 and is connected to the nut 9. When the other end of the upper frame 2 contacts the other end of the lower frame 1, rotate the movable bolt 8 so that it passes through the mounting block 10, and then tighten the nut 9 to complete the installation and fixation between the lower frame 1 and the upper frame 2.

[0034] The lower end of the lower frame 1 is fixedly connected to a base 11. The lower surface of the base 11 is provided with a threaded hole 12. The support device can be installed on the lathe through the threaded hole 12. The lower surface of the base 11 is provided with a snap-fit ​​groove 13. The snap-fit ​​groove 13 can be connected to the lathe guide rail to facilitate the positioning of the support device.

[0035] The working principle and usage process of this utility model are as follows: First, place the support device on the lathe, connect the snap-fit ​​groove 13 with the lathe guide rail, and then fix the support device on the lathe through the threaded hole 12.

[0036] Then, connect and fix the workpiece to the chuck on the lathe. At this time, the workpiece is located between the lower frame 1 and the upper frame 2. Rotate the movable bolt 8 to make it pass through the mounting block 10, and then tighten the nut 9 to fix the upper frame 2.

[0037] Then release the restriction of the limiting structure 4 on the adjusting structure 3, rotate the handle 305, so that the gear 304 and the tooth 302 cooperate to drive the movable seat 501 to rotate by an angle, and stop when the outer surface of the support roller 504 is parallel to the tapered surface of the workpiece.

[0038] The control rod 502 is rotated so that the support seat 503 approaches the surface of the workpiece until the outer surface of the support roller 504 contacts the tapered surface of the workpiece. At this time, the support roller 504 and the tapered surface of the workpiece are in surface contact, which can support the workpiece and limit the workpiece's movement during the processing.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A low-friction, multi-angle workpiece limiting support device, comprising a lower frame (1), characterized in that: It also includes an upper frame (2), an adjustment structure (3), a limiting structure (4), and a support structure (5), wherein: The adjustment structure (3) includes an arc-shaped block (301), the inner surface of which is fixedly connected with teeth (302), the outer surface of the upper frame (2) is fixedly connected with a first fixed seat (303), the side surface of the first fixed seat (303) is movably connected with a gear (304), the gear (304) meshes with the teeth (302), and the connecting end of the gear (304) passes through one side of the first fixed seat (303) and is fixedly connected with a handle (305). The limiting structure (4) includes a second fixed seat (401), the lower surface of the second fixed seat (401) is fixedly connected to the outer surface of the upper frame (2), the interior of the second fixed seat (401) is movably connected to a limiting rod (402), one end of the limiting rod (402) is threadedly connected to a limiting block (403), and the side surface of the rotating handle (305) is provided with a limiting groove (404).

2. The low-friction multi-angle workpiece limiting support device according to claim 1, characterized in that: The support structure (5) includes a movable seat (501), the side surface of the movable seat (501) is movably connected to the interior of the upper frame (2), the side surface of the movable seat (501) is fixedly connected to the side surface of the arc block (301), a rotating rod (502) is movably connected inside the movable seat (501), a support seat (503) is threaded to the lower end of the rotating rod (502), and a support roller (504) is movably connected to the lower end of the support seat (503).

3. The low-friction multi-angle workpiece limiting support device according to claim 2, characterized in that: The outer surface of the support base (503) is provided with a support slot (505), and the interior of the movable base (501) is movably connected with a support screw (506), one end of which is located inside the support slot (505).

4. The low-friction multi-angle workpiece limiting support device according to claim 1, characterized in that: One end of the lower frame (1) is fixedly connected to a connecting block (6), and the interior of the connecting block (6) is movably connected to one end of the upper frame (2).

5. The low-friction multi-angle workpiece limiting support device according to claim 1, characterized in that: The other end of the lower frame (1) is fixedly connected to an installation block (7), and the interior of the installation block (7) is movably connected to a movable bolt (8).

6. The low-friction multi-angle workpiece limiting support device according to claim 5, characterized in that: The other end of the upper frame (2) is fixedly connected to a mounting block (10), and the upper end of the movable bolt (8) passes through the internal thread of the mounting block (10) and is connected to a nut (9).

7. The low-friction multi-angle workpiece limiting support device according to claim 1, characterized in that: The lower end of the lower frame (1) is fixedly connected to a base (11), and the lower surface of the base (11) is provided with a threaded hole (12) and a snap-fit ​​groove (13).