Hydraulic clamp for upper cover of gearbox
By designing a hydraulic clamp for the gearbox cover, the workpiece is accurately positioned and securely clamped by using a cylinder-driven clamping assembly and locating pins. This solves the problems of complex existing clamp designs and high damage rates, and improves machining accuracy and applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING DENGKE METAL PROD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-05
AI Technical Summary
Existing gearbox housing machining fixtures are complex in design, have a variety of parts, a high damage rate, high production costs, and limited applicability, making it difficult to achieve stable clamping.
The gearbox cover hydraulic clamp includes a base plate, clamping components, positioning units, and limiting components. The clamping components and positioning pins are driven by cylinders to ensure accurate positioning of the workpiece, and the limiting components provide stable support through telescopic parts and rubber protrusions.
It achieves accurate positioning and stable clamping of workpieces, reduces damage rate, improves machining accuracy and applicability, and reduces production costs.
Smart Images
Figure CN224196403U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical processing technology, specifically relating to a hydraulic clamp for a gearbox cover. Background Technology
[0002] A gearbox housing machining table is a work platform or equipment specifically designed for machining gearbox housings. It provides a stable and fixed position for the gearbox housing, ensuring that the housing will not shake or shift during machining and guaranteeing machining accuracy. The tapping machine on top can be used to tap the corresponding holes to form threads. The gearbox housing needs to be clamped before machining.
[0003] The gearbox housing has an extremely irregular shape, making it difficult for ordinary fixtures to achieve a good and stable clamping effect. Existing gearbox housing machining fixtures are too complex in design. Although they achieve clamping during gearbox housing machining, their components are complex and diverse, resulting in a high damage rate. Moreover, their production cost is far higher than that of ordinary fixtures, and their application range is extremely limited, leading to insufficient practicality. Therefore, it is necessary to develop a new type of gearbox housing machining fixture. Utility Model Content
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] The gearbox cover hydraulic clamp includes:
[0006] The substrate has a workpiece that can be placed on its upper surface.
[0007] Clamping components are connected in pairs and symmetrically distributed to the upper surface of the substrate;
[0008] Positioning units are distributed in pairs on both sides of the workpiece and connected to the base plate. Each positioning unit has a positioning pin that extends into the workpiece.
[0009] The center line of the positioning unit is not collinear with the center line of the workpiece;
[0010] A limiting component is disposed on the side of the workpiece and connected to the base plate. The limiting component includes telescopic members and abutment blocks located on both sides of the workpiece, and the free end of the telescopic member is connected to a limiting pressure block.
[0011] The outer wall of the limiting block is provided with a limiting plane along the axial direction that matches the lower end face of the workpiece side ear;
[0012] The end of the limiting pressure block is provided with several rubber protrusions that cooperate with the side of the workpiece.
[0013] Furthermore, the positioning unit includes a hydraulic cylinder, and the positioning pin is sleeved on the inner circumference of the hydraulic cylinder, and the two can slide relative to each other.
[0014] Furthermore, the telescopic component includes a cylinder or a screw mechanism.
[0015] Furthermore, the clamping assembly is positioned at the corner of the workpiece.
[0016] Furthermore, the clamping assembly includes a cylinder, a clamping claw hinged to the cylinder, and a linkage mechanism.
[0017] Furthermore, a lifting ring is connected to the upper end of the substrate.
[0018] Compared with the prior art, this utility model has the following advantages:
[0019] This invention comprises several clamping components. With the cooperation of a positioning unit, a cylinder can move these components simultaneously. Because the positioning unit has a positioning pin that extends into the workpiece, the accuracy of the workpiece's placement is ensured. Since the center line of the positioning unit is not collinear with the center line of the workpiece, this not only ensures effective positioning but also provides better support for the workpiece.
[0020] The setting of the limiting component increases the restriction on the workpiece's degree of freedom, avoiding the possibility of the workpiece shaking during processing and assembly. The workpiece is more stable under the action of the limiting pressure block and the abutment block. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram illustrating a specific embodiment of the present utility model;
[0022] Figure 2 This is a schematic diagram illustrating the main structural features of a specific embodiment of the present utility model;
[0023] Figure 3 A top view diagram illustrating a specific embodiment of this utility model;
[0024] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of AA;
[0025] Figure 5 This is a three-dimensional structural diagram illustrating the limiting pressure block in a specific embodiment of the present invention;
[0026] The reference numerals in the accompanying drawings include:
[0027] Base plate 1, lifting ring 10, clamping assembly 2, clamping claw 20, linkage mechanism 21, positioning unit 3, positioning pin 31, hydraulic cylinder 32, telescopic component 41, limiting pressure block 42, limiting plane 420, rubber protrusion 421, abutment block 43, workpiece 5, side ear 50. Detailed Implementation
[0028] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0029] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0030] like Figure 1 - Figure 5 As shown, the hydraulic clamp for the gearbox cover of this utility model includes a base plate 1, a clamping assembly 2, a positioning unit 3, and several sets of limiting assemblies.
[0031] Among them, the upper surface of the substrate 1 can be used to place the workpiece 5;
[0032] The clamping components 2 are connected in pairs and symmetrically distributed on the upper surface of the substrate 1. Specifically, the clamping components 2 are located at the corners of the workpiece 5.
[0033] This utility model consists of several clamping components 2. With the cooperation of a positioning unit 3, the clamping components 2 can be moved simultaneously by a cylinder. Since the positioning unit 3 has a positioning pin 31 that extends into the workpiece 5, the accuracy of the workpiece 5's placement position can be ensured. Because the center line of the positioning unit 3 is not collinear with the center line of the workpiece 5, this not only ensures the effectiveness of positioning but also provides better support for the workpiece 5.
[0034] Positioning units 3 are distributed in pairs on both sides of workpiece 5 and connected to base plate 1. Positioning units 3 have positioning pins 31 that extend into workpiece 5.
[0035] The centerline of positioning unit 3 is not collinear with the centerline of workpiece 5;
[0036] The limiting component is connected to the base plate 1, is disposed on the side of the workpiece 5, and is arranged along the length direction of the workpiece 5. The limiting component includes telescopic members 41 and abutment blocks 43 located on both sides of the workpiece 5, and the free end of the telescopic member 41 is connected to the limiting pressure block 42.
[0037] The telescopic component 41 can be a cylinder or a screw mechanism.
[0038] The setting of the limiting component increases the restriction on the degree of freedom of workpiece 5, and avoids the possibility of workpiece 5 shaking during processing and assembly. Workpiece 5 is more stable under the action of the limiting pressure block 42 and the abutment block 43.
[0039] The outer wall of the limiting pressure block 42 is provided with a limiting plane 420 along the axial direction, which matches the lower end face of the side ear 50 of the workpiece 5;
[0040] Since the outer wall of the limiting pressure block 42 has a limiting plane 420, after the limiting pressure block 42 extends into the side of the workpiece 5 and below the side ear 50, it can also provide a certain auxiliary function for supporting the workpiece 5.
[0041] The end of the limiting pressure block 42 is provided with several rubber protrusions 421 that cooperate with the side of the workpiece 5.
[0042] The end of the limiting pressure block 42 is a rubber protrusion 421, which avoids the workpiece 5 from deforming due to excessive local resistance.
[0043] The limiting component adopts a telescopic structure, which can be used to clamp gearbox covers of different widths and shapes.
[0044] Specifically, the positioning unit 3 includes a hydraulic cylinder 32, and a positioning pin 31 is sleeved on the inner circumference of the hydraulic cylinder 32, and the two can slide relative to each other.
[0045] The aforementioned clamping assembly 2 includes a cylinder, a clamping claw 20 hinged to the cylinder, and a linkage mechanism 21. The clamping assembly 2 is prior art, and the specific structure and connection form can be referred to the technical solutions mentioned in relevant technical documents. The aforementioned structure is not within the protection scope of this application.
[0046] In addition, a lifting ring 10 is connected to the upper end of the base plate 1. When moving the fixture, it can be lifted and moved by the lifting ring 10, which increases its mobility.
[0047] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.
Claims
1. A hydraulic clamp for a gearbox cover, characterized in that, include: The substrate (1) has a workpiece (5) that can be placed on its upper surface; Clamping components (2) are connected in pairs and symmetrically distributed to the upper surface of the substrate (1); Positioning units (3) are distributed in pairs on both sides of the workpiece (5) and connected to the base plate (1). The positioning units (3) have positioning pins (31) that extend into the workpiece (5). The center line of the positioning unit (3) is not collinear with the center line of the workpiece (5); Several sets of limiting components are connected to the base plate (1), and are arranged on the side of the workpiece (5) and along the length of the workpiece (5). The limiting components include telescopic members (41) and abutment blocks (43) located on both sides of the workpiece (5). The free end of the telescopic member (41) is connected to a limiting pressure block (42). The outer wall of the limiting block (42) is provided with a limiting plane (420) that matches the lower end face of the side ear (50) of the workpiece (5) along the axial direction; The end of the limiting block (42) is provided with several rubber protrusions (421) that cooperate with the side of the workpiece (5).
2. The hydraulic clamp for the gearbox cover as described in claim 1, characterized in that: The positioning unit (3) includes a hydraulic cylinder (32), and the positioning pin (31) is sleeved on the inner circumference of the hydraulic cylinder (32), and the two can slide relative to each other.
3. The hydraulic clamp for the gearbox cover as described in claim 1 or 2, characterized in that: The telescopic component (41) includes a cylinder or screw mechanism.
4. The hydraulic clamp for the gearbox cover as described in claim 3, characterized in that: The clamping assembly (2) is located at the corner of the workpiece (5).
5. The hydraulic clamp for the gearbox cover as described in claim 4, characterized in that: The clamping assembly (2) includes a cylinder, a clamping claw (20) hinged to the cylinder, and a linkage mechanism (21).
6. The gearbox cover hydraulic clamp as described in claim 1, 2, 4, or 5, characterized in that: A lifting ring (10) is connected to the upper end of the substrate (1).