Hydraulic type driving gear machining clamp

By introducing the clearance fit between the slide plate and the V-plate in the hydraulic active gear machining fixture, the problem of the hydraulic clamp not holding firmly is solved, and the stable clamping of the workpiece and the improvement of machining accuracy are achieved.

CN223353657UActive Publication Date: 2025-09-19ZHENGZHOU HUAWEI GEAR
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Patent Information

Application Number
CN202422806183.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-09-19
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

When the existing hydraulic gripper contacts the cylindrical surface of the workpiece, the workpiece is likely to slip and cannot be effectively clamped.

Method used

A hydraulic active gear machining fixture is designed. By matching the clearance between the limit plate and the slide plate, the slide plate and the V-shaped plate press the workpiece together to generate a large static friction force to prevent slipping.

Benefits of technology

It effectively prevents the workpiece from slipping during machining, ensures stable clamping of the workpiece, and improves machining accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A hydraulic type driving gear machining clamp comprises a base, a V-shaped plate and a hydraulic clamping hand are fixed to the base through a vertical plate, a limiting plate is fixed to the vertical plate, a through hole is formed in the limiting plate, a sliding plate is arranged in the through hole in a sliding mode, a hydraulic cylinder is arranged below the sliding plate, the cylinder body end of the hydraulic cylinder is fixed to the base, and the piston end of the hydraulic cylinder is fixed to the lower surface of the sliding plate. The limiting plate is in clearance fit with the sliding plate. Compared with the prior art, the utility model has the technical effects that the sliding plate is arranged, and the sliding plate and the V-shaped plate can tightly press a workpiece together, so that larger static friction force can be generated, and the workpiece can be prevented from slipping.
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Description

Technical Field

[0001] The utility model belongs to the technical field of gear processing, and particularly relates to a hydraulic active gear processing fixture. Background Art

[0002] like Figure 1 During the production process of the short shaft driving gear (hereinafter referred to as the workpiece) 90, the end face of the small head needs to be axially drilled. When drilling, a fixture is required to clamp the workpiece 90.

[0003] like Figure 2-3 The fixture includes a base 10, which fixes a V-shaped plate 11 and a hydraulic clamp 12 through a vertical plate. When in use, the workpiece 90 is placed on the base 10, with the left side close to the V-shaped plate 11, and then the outer circle of the workpiece 90 (the cylindrical side of the workpiece) is clamped by the hydraulic clamp 12. Utility Model Content

[0004] The technical problem to be solved by the present invention is that during machining, because the hydraulic clamp 12 and the workpiece 90 are in cylindrical contact, sometimes they cannot be clamped tightly, causing the workpiece to slip (that is, the workpiece rotates with the drill bit).

[0005] The technical solution of the utility model is specifically as follows:

[0006] A hydraulic active gear processing fixture includes a base, which fixes a V-shaped plate and a hydraulic clamp through a vertical plate. The vertical plate fixes a limit plate. The limit plate is provided with a through hole. A slide is provided slidingly in the through hole. A hydraulic cylinder is provided below the slide. The cylinder end of the hydraulic cylinder is fixed on the base, and the piston end of the hydraulic cylinder is fixed on the lower surface of the slide.

[0007] The limiting plate and the sliding plate are clearance matched.

[0008] Compared with the prior art, the technical effect of the present invention is that the present invention is provided with a slide plate, which together with the V-shaped plate can press the workpiece tightly, generate a large static friction force, and prevent the workpiece from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic diagram of a prior art workpiece.

[0010] Figure 2 It is a schematic diagram of a prior art fixture.

[0011] Figure 3 yes Figure 2 Schematic diagram of the top view of the V-shaped plate.

[0012] Figure 4 It is a schematic diagram of the present utility model. DETAILED DESCRIPTION

[0013] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments thereof.

[0014] like Figure 4 A hydraulic active gear processing fixture includes a base 10, which fixes a V-shaped plate 11 and a hydraulic clamp 12 through a vertical plate 13.

[0015] The vertical plate 13 fixes the limiting plate 20 , and the limiting plate 20 is provided with a through hole. A slide plate 21 is slidably provided in the through hole, and a hydraulic cylinder is provided below the slide plate 21 .

[0016] The cylinder end 30 of the hydraulic cylinder is fixed on the base 10 , and the piston end 31 of the hydraulic cylinder is fixed on the lower surface of the slide plate 21 .

[0017] In order to facilitate sliding, the limiting plate 20 and the sliding plate 21 are clearance-matched.

[0018] Its working principle is:

[0019] S1, when in use, the slide plate 21 is in the low position (that is, Figure 4 The lower side of the workpiece 90 is positioned on the base 10, with the left side close to the V-shaped plate 11. The outer edge of the workpiece 90 (the cylindrical side of the workpiece) is then clamped by the hydraulic gripper 12. This is prior art.

[0020] S2. Start the hydraulic cylinder to extend the piston end 31, driving the slide plate 21 and the workpiece 90 to move upward until the slide plate 21 and the V-shaped plate 11 press the workpiece together, and the hydraulic cylinder stops.

[0021] S3, drilling. This is a prior art and will not be described in detail.

[0022] S4. Start the hydraulic cylinder to retract the piston end 31, driving the slide plate 21 and the workpiece 90 to move downward until the workpiece 90 is free, and then remove the workpiece 90.

[0023] For other contents, please refer to the prior art.

[0024] The above description is only the preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the scope of protection of the present invention.

Claims

1. A hydraulic active gear processing fixture, comprising a base (10), wherein the base (10) fixes a V-shaped plate (11) and a hydraulic gripper (12) via a vertical plate (13), characterized in that: The vertical plate (13) fixes the limiting plate (20), and the limiting plate (20) is provided with a through hole. A slide plate (21) is slidably provided in the through hole. A hydraulic cylinder is provided below the slide plate (21), a cylinder end (30) of the hydraulic cylinder is fixed on the base (10), and a piston end (31) of the hydraulic cylinder is fixed on the lower surface of the slide plate (21).

2. The hydraulic driving gear machining fixture according to claim 1, characterized in that: The limiting plate (20) and the slide plate (21) are clearance-matched.