Fixing device for workpiece machining

By setting a slot at the bottom of the annular workpiece and utilizing a combination of support components and connecting rods, the wear problem caused by clamping during the machining of the annular workpiece is solved, achieving stable workpiece fixation, which is suitable for machining the sidewalls of annular workpieces.

CN224059660UActive Publication Date: 2026-03-31SICHUAN HAIKE MACHINERY MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In the prior art, ring-shaped workpieces are easily damaged during processing due to clamping.

Method used

The system employs a combination structure of support components, connecting rods, and pads. By setting grooves at the bottom of the workpiece and inserting holes and slots on the pads and support components, the connecting rods provide stable fixation and prevent slippage.

Benefits of technology

It ensures the stability of the workpiece during processing, avoids wear, and is suitable for machining the sidewalls of ring-shaped workpieces, improving the stability and safety of the machining process.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224059660U_ABST
    Figure CN224059660U_ABST
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Abstract

The utility model relates to the technical field of workpiece machining, and aims to solve the problem that an existing annular workpiece is clamped and fixed through a hoop, and the workpiece is prone to being damaged in the rotating machining process. The utility model provides a fixing device for workpiece machining. The fixing device comprises a supporting assembly, a plurality of connecting rods and a cushion body. A plurality of slots are formed in the top of the supporting assembly; the pad body is provided with a plurality of insertion holes corresponding to the insertion grooves; one end of the connecting rod sequentially penetrates through the inserting holes and penetrates into the inserting grooves. The other end of the connecting rod penetrates out of the inserting groove and extends towards the outer portion of the groove opening. According to the clamp, it can be guaranteed that a workpiece cannot slide or deviate in the machining process, compared with a traditional clamp butt-clamping mode, the clamp is more stable and firmer, the workpiece cannot be abraded, and the clamp is more suitable for the situation that the side wall of the workpiece is machined.
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Description

Technical Field

[0001] This utility model relates to the field of workpiece processing technology, and more specifically, to a workpiece processing fixing device. Background Technology

[0002] In the production process of workpieces, side grooving is often required for ring-shaped workpieces, such as gearbox gears and drive shafts. Grooving is necessary to facilitate precise matching or connection with other components. For ring-shaped workpieces, the workpiece usually needs to be rotated during the machining of the outer groove. In the prior art, a clamping structure is usually used to clamp and secure the ring-shaped workpiece or pipe during grooving to ensure the stability of the workpiece. However, this can lead to wear on the workpiece during the rotation and grooving process. For example, the clamping device disclosed in patent CN215316061U uses upper and lower clamps to clamp and stabilize the arc wall of the round pipe.

[0003] Based on the above description, there is an urgent need for a workpiece fixing device that is less likely to damage the workpiece during processing. Utility Model Content

[0004] The purpose of this utility model is to provide a workpiece fixing device, which aims to solve the technical problem that the existing ring workpieces are clamped and fixed by clamps, which easily damages the workpieces during the rotation process.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] A workpiece fixing device includes a support assembly, multiple connecting rods, and a pad; the top of the support assembly is provided with multiple slots; the pad is provided with multiple insertion holes corresponding to the slots; one end of each connecting rod passes through the insertion hole and into the slot in sequence; the other end of each connecting rod extends out of the slot and outward from the slot opening.

[0007] Preferably, one end of the connecting rod is a threaded end; the threaded end passes through the slot and is screwed into the slot.

[0008] Preferably, the end of the connecting rod away from the pad is fitted with an elastic outer sleeve.

[0009] Preferably, the assembly also includes a cylindrical body; the top of the cylindrical body is provided with a first ring plate and a second ring plate; the pad is a ring pad; the ring pad is sleeved on the cylindrical body; the ring pad is located between the first ring plate and the second ring plate; the first ring plate is located at one end away from the support assembly; the outer diameter of the first ring plate is shorter than that of the second ring plate; the second ring plate is provided with a plurality of through holes for the connecting rod to pass through.

[0010] Preferably, the support assembly includes a support base and a plurality of legs disposed at the bottom of the support base; the bottom of the legs is provided with a connecting plate with a plurality of screw holes.

[0011] Preferably, the outer side wall of the cylinder at the end away from the second ring plate is provided with a plurality of limiting blocks; the top of the support base is provided with a limiting groove for the limiting blocks to be inserted; the slot is provided at the top of the support base.

[0012] Preferably, the pad is a circular pad; the circular pad has a plurality of perforations spaced apart along its diameter; the perforations are for the connecting rod to pass through.

[0013] Preferably, the circular pad extends toward the support seat and is provided with a plurality of limiting protrusions; the support seat is provided in a limiting groove into which the limiting protrusions are inserted.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0015] This invention achieves stable fixation of the workpiece by setting a groove at the bottom of the workpiece and further setting corresponding insertion holes and slots in the pad and support components, allowing multiple connecting rods to be inserted and connected. This ensures that the workpiece will not slide or shift during processing. Compared with the traditional clamping method, it is more stable and will not cause wear to the workpiece. It is also more suitable for processing the side walls of the workpiece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first explosive structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the second explosive structure of this utility model.

[0018] Icons: 1-Support component, 11-Support base, 12-Leg, 2-Connecting rod, 3-Padded body, 4-Cylinder body, 5-First ring plate, 6-Second ring plate, 7-Connecting hole plate, 8-Perforation, 9-Limiting protrusion, 10-Ring-shaped workpiece. Detailed Implementation

[0019] The specific implementation method is described below with reference to the accompanying drawings.

[0020] Example 1

[0021] Please see Figures 1 to 2 The present invention provides the following technical solution: a workpiece fixing device, which is suitable for the side processing of ring-shaped workpieces.

[0022] Specifically, such as Figure 1 and Figure 2As shown, a workpiece processing fixing device includes a support assembly 1, multiple connecting rods 2 and a pad 3; the top of the support assembly 1 is provided with multiple slots; the pad 3 is provided with multiple insertion holes corresponding to the slots; one end of the connecting rod 2 passes through the insertion hole and into the slot in sequence; the other end of the connecting rod 2 passes out of the slot and extends outward from the slot opening.

[0023] In this embodiment, by opening a hole groove at the bottom of the workpiece and further setting insertion holes and slots corresponding to the workpiece hole groove on the pad 3 and the support component 1, the workpiece can be stably fixed by multiple connecting rods 2 being inserted and connected. This ensures that the annular workpiece 10 will not slide or deviate during the processing. Compared with the traditional clamping method, it is more stable and will not cause wear to the annular workpiece. It is also more suitable for processing situations such as slotting the side wall of the annular workpiece 10.

[0024] In this embodiment, the groove depth of the bottom hole of the annular workpiece needs to be flexibly adjusted according to the specific application of the annular workpiece.

[0025] Specifically, such as Figure 1 As shown, one end of the connecting rod 2 is a threaded end; the threaded end passes into the slot and is screwed into the slot. The end of the connecting rod 2 away from the pad 3 is fitted with an elastic outer sleeve.

[0026] In this embodiment, the elastic outer sleeve is made of silicone with good elasticity, and protrusions can be further provided on its exterior to increase friction.

[0027] Specifically, such as Figure 1 As shown, it also includes a cylinder 4; the top of the cylinder 4 is provided with a first ring plate 5 and a second ring plate 6; the pad 3 is a ring pad; the ring pad is sleeved on the cylinder 4; the ring pad is located between the first ring plate 5 and the second ring plate 6; the first ring plate 5 is located at one end away from the support assembly 1; the outer diameter of the first ring plate 5 is shorter than that of the second ring plate 6; the second ring plate 6 is provided with a plurality of through holes 8 for the connecting rod 2 to pass through.

[0028] In this embodiment, the outer diameter of the first ring plate 5 is shorter than that of the second ring plate 6, which facilitates the installation of the ring pad and allows the connecting rod 2 to pass through the ring pad and into the second ring plate 6, thereby forming a stable positioning structure for the annular workpiece 10, so as to facilitate the slotting of the outer wall of the annular workpiece 10.

[0029] Specifically, such as Figure 1 and Figure 2 As shown, the support assembly 1 includes a support base 11 and a plurality of legs 12 disposed at the bottom of the support base 11; the bottom of the legs 12 is provided with a connecting plate 7 having a plurality of screw holes.

[0030] In this embodiment, the connecting hole plate 7 facilitates the installation of the workpiece fixing device for use on other machine bases or turntables.

[0031] Specifically, such as Figure 1 As shown, the outer side wall of the cylinder 4 away from the second ring plate 6 is provided with multiple limiting blocks; the top of the support base 11 is provided with a limiting groove for the limiting blocks to be inserted; the slot is provided on the top of the support base 11.

[0032] In this embodiment, the limiting groove embedded in the limiting block further improves the stability after connection and avoids offset and slippage during the workpiece rotation processing.

[0033] Specifically, such as Figure 2 As shown, the pad 3 is a circular pad; the circular pad has multiple perforations 8 spaced apart along the diameter direction; the perforations 8 allow the connecting rod 2 to pass through.

[0034] In this embodiment, the circular pad 3 extends toward the support base 11 and is provided with a plurality of limiting protrusions 9; the support base 11 is provided in a limiting groove into which the limiting protrusions 9 are embedded.

Claims

1. A fixing device for workpiece processing, characterized by: Support assembly (1), a plurality of connecting rods (2) and a pad (3); the top of the support assembly (1) is provided with a plurality of insertion slots; the pad (3) is provided with a plurality of insertion holes corresponding to the insertion slots; one end of the connecting rod (2) passes through the insertion hole and penetrates into the insertion slot in turn; the other end of the connecting rod (2) penetrates out of the insertion slot and extends to the outside of the slot.

2. The workpiece processing fixture of claim 1, wherein: One end of the connecting rod (2) is a threaded end; the threaded end penetrates into the insertion slot and is screwed with the insertion slot.

3. The workpiece processing fixture of claim 2, wherein: One end of the connecting rod (2) is a threaded end; the threaded end penetrates into the insertion slot and is screwed with the insertion slot.

4. The workpiece processing fixture of claim 1, wherein: Further comprising a cylinder (4); the top of the cylinder (4) is provided with a first ring plate (5) and a second ring plate (6) outside; the pad (3) is a ring pad; the ring pad is sleeved on the cylinder (4); the ring pad is arranged between the first ring plate (5) and the second ring plate (6); the first ring plate (5) is arranged at one end away from the support assembly (1); the outer diameter of the first ring plate (5) is shorter than that of the second ring plate (6); the second ring plate (6) is provided with a plurality of perforations (8) for the connecting rod (2) to pass through.

5. The workpiece processing fixture of claim 4, wherein: The support assembly (1) comprises a support seat (11) and a plurality of supporting legs (12) arranged at the bottom of the support seat (11); the bottom of the supporting leg (12) is provided with a connecting hole plate (7) with a plurality of screw holes.

6. The workpiece processing fixture of claim 5, wherein: The outer side wall of one end of the cylinder (4) away from the second ring plate (6) is provided with a plurality of limiting blocks; the top of the support seat (11) is provided with a limiting groove for the limiting blocks to embed; the insertion slot is arranged at the top of the support seat (11).

7. The workpiece processing fixture of claim 1, wherein: The pad (3) is a circular pad (3); the circular pad (3) is provided with a plurality of perforations (8) along the diameter direction; the perforations (8) are for the connecting rod (2) to pass through.

8. The workpiece processing fixture of claim 6, wherein: The circular pad (3) extending to the support seat (11) is provided with a plurality of limiting protrusions (9); the support seat (11) is arranged in a limiting groove for the limiting protrusions (9) to embed.

Citation Information

Patent Citations

  • High-stability clamping device for circular steel pipe production

    CN215316061U