A clamp for a gear box cover

Abstract

The utility model discloses a kind of clamps of gear box cover, including mounting plate, coarse positioning assembly, two first pressing components and second pressing component, processing mouth is set on mounting plate, coarse positioning assembly, first pressing component and second pressing component are set on mounting plate around the circumference of processing mouth;Workpiece is positioned initially using coarse positioning assembly, workpiece is positioned using two first pressing components, workpiece is clamped and fixed using first pressing component and second pressing component.The utility model is pressed and clamped to workpiece by two first pressing components and second pressing component, while setting positioning pin on first pressing component, workpiece is fine positioned, positioning point and clamping point are set on same clamping ear, reduce the clamping ear required to be reserved by workpiece.Positioning pin uses multi-directional part structure, improve the stability of positioning pin circumferential movement.

Description

Technical Field

[0001] This utility model relates to the field of clamps, and in particular to a clamp for a gearbox cover. Background Technology

[0002] The gearbox cover is a crucial component of the gearbox, typically installed at the opening of the gearbox body to form a closed housing structure. It protects the internal mechanical parts, prevents dust and impurities from entering, provides necessary lubrication and cooling, and ensures the normal operation of the gearbox. Therefore, the precision requirements for the port are extremely high, necessitating reliable clamping during machining. Utility Model Content

[0003] To address the shortcomings of the existing technology, the main objective of this utility model is to overcome these deficiencies by disclosing a gearbox cover clamp, comprising a mounting plate, a coarse positioning component, two first clamping components, and a second clamping component. A machining opening is provided on the mounting plate, and the coarse positioning component, the first clamping components, and the second clamping component are circumferentially arranged on the mounting plate around the machining opening. The coarse positioning component is used for initial positioning of the workpiece, the two first clamping components are used for positioning the workpiece, and the first and second clamping components are used for clamping and fixing the workpiece.

[0004] Furthermore, the coarse positioning component includes a first positioning block and at least one second positioning block, the first positioning block and the second positioning block being arranged around the machining opening, and the first positioning block having at least one positioning groove that mates with the side features of the workpiece.

[0005] Furthermore, four second positioning blocks are provided, and the second positioning blocks cooperate with the side features of the workpiece.

[0006] Furthermore, three of the first positioning slots are provided.

[0007] Furthermore, the first clamping assembly includes a first support base, a positioning pin, a spring, and a first lever cylinder. The first support base is provided with a first support portion and a first guide groove that cooperates with the positioning pin. The positioning pin is slidably disposed in the first guide groove, and the spring provides axial thrust to the positioning pin. The first lever cylinder is provided with a first clamping portion, and the first lever cylinder clamps the workpiece between the first clamping portion and the first support portion.

[0008] Furthermore, the positioning pin includes a first guide portion, a second guide portion, a third guide portion, and a positioning portion arranged sequentially. The spring is sleeved on the first guide portion, and one end of the spring acts on the second guide portion. A second guide groove is provided on the mounting plate. The second guide portion slides in cooperation with the second guide groove, and the third guide portion slides in cooperation with the first guide groove. The positioning portion is conical.

[0009] Furthermore, the second clamping assembly includes a second support base and a second lever cylinder. The second support base is provided with a second support part, and the second lever cylinder is provided with a second clamping part. The workpiece is clamped between the second support part and the second clamping part by means of the second lever cylinder.

[0010] Furthermore, it also includes a hydraulic support cylinder, which is inclinedly disposed on the mounting plate to provide oblique support for the workpiece.

[0011] Furthermore, a third support portion is provided at the end of the hydraulic support cylinder, and the surface of the third support portion is curved.

[0012] The beneficial effects achieved by this utility model are as follows:

[0013] This invention uses two first clamping components and a second clamping component to clamp and hold the workpiece. A locating pin is provided on the first clamping component for precise workpiece positioning. The locating point and the clamping point are located on the same clamping lug, reducing the number of clamping lugs required for the workpiece. The locating pin adopts a multi-guide structure to improve the stability of its circumferential movement. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a clamp for a gearbox cover according to the present invention;

[0015] Figure 2 for Figure 1 Top view;

[0016] Figure 3 This is a three-dimensional structural diagram of the first clamping component;

[0017] Figure 4 This is a schematic diagram showing the fit between the locating pin and the mounting plate.

[0018] Figure 5 This is a three-dimensional structural diagram of the second clamping component;

[0019] Figure 6 This is a schematic diagram showing the usage state of a clamp for a gearbox cover according to the present invention;

[0020] The attached figures are labeled as follows:

[0021] 1. Mounting plate; 2. Coarse positioning assembly; 3. First clamping assembly; 4. Second clamping assembly; 5. Support cylinder; 21. First positioning block; 22. Second positioning block; 211. First positioning groove; 221. Second positioning groove.

[0022] 31. First support seat; 32. Positioning pin; 33. Spring; 34. First lever cylinder; 311. First support part; 312. First guide groove.

[0023] 321. First guide section; 322. Second guide section; 323. Third guide section; 324. Positioning section.

[0024] 341. First clamping part,

[0025] 41. Second support seat; 42. Second lever cylinder; 411. Second support part; 421. Second clamping part. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0027] A clamp for a gearbox cover, such as Figures 1-5 As shown, the assembly includes a mounting plate 1, a coarse positioning component 2, two first clamping components 3, and a second clamping component 4. A machining opening 11 is provided on the mounting plate 1. The coarse positioning component 2, the first clamping components 3, and the second clamping component 4 are arranged circumferentially around the machining opening 11 on the mounting plate 1. The coarse positioning component 2 is used to perform preliminary positioning of the workpiece, the two first clamping components 3 are used to position the workpiece, and the first clamping components 3 and the second clamping component 4 are used to clamp and fix the workpiece. That is, the first clamping component 3 simultaneously achieves workpiece positioning and clamping.

[0028] In one embodiment, such as Figures 1-5 As shown, the coarse positioning component 2 includes a first positioning block 21 and at least one second positioning block 22, which are arranged around the processing opening 11. The first positioning block 21 has at least one first positioning groove 211 that mates with a feature on the side of the workpiece. In one specific embodiment, the first positioning block 21 has three first positioning grooves 211, the positions and shapes of which mate with feature points on the workpiece. This multi-point feature design helps prevent incorrect placement of the workpiece by the worker.

[0029] In one embodiment, such as Figures 1-5As shown, four second positioning blocks 22 are provided, and the second positioning blocks 22 are matched with the side features of the workpiece. That is, the second positioning blocks 22 are provided with second positioning grooves 221, and the shape of the second positioning grooves 221 matches the shape of the feature points on the side of the workpiece.

[0030] In one embodiment, such as Figures 1-5 As shown, the first clamping assembly 3 includes a first support base 31, a positioning pin 32, a spring 33, and a first lever cylinder 34. The first support base 31 is provided with a first support part 311 and a first guide groove 312 that cooperates with the positioning pin 32. The positioning pin 32 is slidably disposed in the first guide groove 312, and the spring 33 provides axial thrust to the positioning pin 32. The first lever cylinder 34 is provided with a first clamping part 341, and the first lever cylinder 34 clamps the workpiece between the first clamping part 341 and the first support part 311.

[0031] In one specific embodiment, such as Figures 1-5 As shown, the positioning pin 32 includes a first guide portion 321, a second guide portion 322, a third guide portion 323, and a positioning portion 324 arranged sequentially. A second guide groove is provided on the mounting plate 1. A spring 33 is sleeved on the first guide portion 321 and disposed in the second guide groove. The two ends of the spring 33 act on the bottom of the second guide groove and the second guide portion 322, providing axial thrust to the positioning pin 32. The second guide portion 322 is slidably engaged with the second guide groove, and the third guide portion 323 is slidably engaged with the first guide groove 312. Through the engagement of the second guide portion 322 with the first guide groove 312, the third guide portion 323 with the second guide groove, the positioning pin 32 is guided to move stably. The positioning portion 324 is conical.

[0032] In the above embodiments, such as Figures 1-5 As shown, the first guide portion 321, the second guide portion 322 and the third guide portion are cylindrical. The diameter of the second guide portion 322 is larger than the diameter of the first guide portion 321 and the second guide portion 323. The diameter of the second guide portion 322 is larger than the inner diameter of the second guide groove, which serves as a limiting function.

[0033] In one embodiment, such as Figures 1-5 As shown, the second clamping assembly 4 includes a second support base 41 and a second lever cylinder 42. The second support base 41 is provided with a second support part 411, and the second lever cylinder 42 is provided with a second clamping part 421. The workpiece is clamped between the second support part 411 and the second clamping part 421 by the second lever cylinder 41.

[0034] In one embodiment, such as Figures 1-5 As shown, it also includes a hydraulic support cylinder 5, which is inclinedly mounted on the mounting plate 1 to provide oblique support for the workpiece.

[0035] In the above embodiments, such as Figures 1-5 As shown, a third support part 51 is provided at the end of the hydraulic support cylinder 5, and the surface of the third support part 51 is curved. This is to avoid wear on the workpiece caused by the support point.

[0036] In this embodiment, as Figures 1-5 As shown, one hydraulic support cylinder 5 is provided. The hydraulic support cylinder 5, the first clamping component 3, and the second clamping component 4 are arranged in a quadrilateral shape to ensure stable clamping of the workpiece during processing.

[0037] When using this utility model, such as Figures 1-6 As shown, the workpiece has three pre-set clamping ears in its circumference. Two of the clamping ears have positioning holes that cooperate with the positioning pins 32 of the first clamping assembly 3 for positioning at two points. The other clamping ear is clamped and fixed by the second clamping assembly 4. After the first clamping assembly 3 and the second clamping assembly 4 clamp the workpiece, the workpiece is supported by the hydraulic support cylinder 5. In addition, the machining port 11 is provided for machining the lower part of the workpiece.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any modifications or equivalent substitutions to the present utility model without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present utility model.

Claims

1. A clamp for a gearbox cover, characterized in that, It includes a mounting plate, a coarse positioning component, two first clamping components, and a second clamping component. The mounting plate is provided with a machining port. The coarse positioning component, the first clamping component, and the second clamping component are arranged circumferentially around the machining port on the mounting plate. The coarse positioning component is used to perform preliminary positioning of the workpiece, the two first clamping components are used to position the workpiece, and the first clamping component and the second clamping component are used to clamp and fix the workpiece.

2. The clamp for a gearbox cover according to claim 1, characterized in that, The coarse positioning component includes a first positioning block and at least one second positioning block, the first positioning block and the second positioning block being arranged around the machining opening, and the first positioning block having at least one positioning groove that mates with the side features of the workpiece.

3. The clamp for a gearbox cover according to claim 2, characterized in that, Four second positioning blocks are provided, and the second positioning blocks are matched with the side features of the workpiece.

4. The clamp for a gearbox cover according to claim 2, characterized in that, The first positioning slot is provided in three parts.

5. The clamp for a gearbox cover according to claim 1, characterized in that, The first clamping assembly includes a first support base, a positioning pin, a spring, and a first lever cylinder. The first support base is provided with a first support portion and a first guide groove that cooperates with the positioning pin. The positioning pin is slidably disposed in the first guide groove, and the spring provides axial thrust to the positioning pin. The first lever cylinder is provided with a first clamping portion, and the first lever cylinder clamps the workpiece between the first clamping portion and the first support portion.

6. The clamp for a gearbox cover according to claim 5, characterized in that, The positioning pin includes a first guide part, a second guide part, a third guide part and a positioning part arranged in sequence. The spring is sleeved on the first guide part and one end of the spring acts on the second guide part. A second guide groove is provided on the mounting plate. The second guide part slides in cooperation with the second guide groove. The third guide part slides in cooperation with the first guide groove. The positioning part is conical.

7. The clamp for a gearbox cover according to claim 1, characterized in that, The second clamping assembly includes a second support base and a second lever cylinder. The second support base is provided with a second support part, and the second lever cylinder is provided with a second clamping part. The workpiece is clamped between the second support part and the second clamping part by means of the second lever cylinder.

8. The clamp for a gearbox cover according to claim 1, characterized in that, It also includes a hydraulic support cylinder, which is inclinedly mounted on the mounting plate to provide oblique support for the workpiece.

9. A clamp for a gearbox cover according to claim 8, characterized in that, The end of the hydraulic support cylinder is provided with a third support part, and the surface of the third support part is curved.

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