Tool clamp for machining axle central shell
By designing tool fixtures for the central housing of the axle and using auxiliary positioning blocks and positioning structures, the processing error problem caused by the rotation of the central housing of the axle during the clamping process is solved, and an efficient and accurate processing process is achieved.
Patent Information
- Application Number
- CN202421394500.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-19
AI Technical Summary
When processing the central housing of the axle, the prior art is difficult to effectively solve the problem of easy rotation of the central housing of the axle during the clamping process, resulting in machining errors, especially in batch processing.
A tool fixture for processing the central housing of the axle was designed, and the auxiliary positioning blocks were used for clamping. Through the coordination of the positioning pins, front positioning columns, rear positioning columns and pressure plates, the precise positioning and stable installation of the axle shell was ensured.
This tooling fixture ensures accuracy during clamping, saves clamping time, improves processing speed, and reduces processing errors.
Smart Images
Figure CN222643863U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of special machine fixtures, and in particular relates to a tooling fixture used for processing a central housing of an axle. Background Art
[0002] The axle center shell is a complex workpiece, and it requires multiple processing steps to complete the processing. When it is necessary to process some difficult processing surfaces (such as Figure 3-4 ) When it is necessary to process the first processing surface, the second processing surface and the third processing surface; although the first processing surface has been rough-processed, there is only one positioning pin hole at the bottom of the central shell of the axle. During the clamping process, the central shell of the axle is prone to rotate, resulting in processing errors and making the workpiece scrapped; in the prior art, the method of table positioning is generally used to ensure the form and position tolerance of the first processing surface, but this processing method is time-consuming and labor-intensive, and is not conducive to batch processing; there is an urgent need for a method to solve this problem. Utility Model Content
[0003] In view of the problems existing in the background technology, the utility model provides a tooling fixture for processing the central housing of an axle.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tooling fixture for processing the central shell of a vehicle axle, comprising a fixture body and an axle shell, the axle shell being installed on the fixture body, the front end face of the axle shell being provided with a first processing face, and the lower end face of the axle shell being provided with a positioning pin hole; the fixture body comprising a base plate, a first pressure plate, a second pressure plate, a front positioning column and a rear positioning column; the base plate is provided with a positioning pin, and the positioning pin is matched with the positioning pin hole of the axle shell; the front positioning column is arranged on both sides of the positioning pin, and an auxiliary positioning block is arranged on the front positioning column; the left side of the base plate is provided with a first pressure plate, and the first pressure plate is matched with the hole at the left end of the axle shell; the right side of the base plate is provided with a second pressure plate, and the second pressure plate is matched with the hole at the right end of the axle shell; the rear positioning column is located at the rear end of the base plate, and the distance between the rear positioning column and the front positioning column is matched with the width of the axle shell.
[0005] The auxiliary positioning block is a "┛"-shaped square block, and a first positioning surface is provided on the side surface of the rear end of the auxiliary positioning block, and a first horizontal positioning hole is provided on the first positioning surface; a second positioning surface is provided on the side surface of the left end of the auxiliary positioning block, and a second longitudinal positioning hole is provided on the second positioning surface; a third positioning surface is provided on the left side of the second positioning surface.
[0006] The corners of the auxiliary positioning block are provided with grooves.
[0007] A positioning block is provided below the pressure head of the first pressing plate.
[0008] A positioning block is provided below the pressing head of the second pressing plate.
[0009] A threaded hole is arranged on the front end surface of the front positioning column.
[0010] The beneficial effects of the utility model are as follows: the utility model provides a tooling fixture for processing the central shell of an axle. When clamping the central shell of the axle, the fixture uses an auxiliary positioning block for clamping. After clamping is completed, the auxiliary positioning block is removed, which ensures the clamping accuracy, saves the clamping time, and improves the processing speed. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model.
[0012] Figure 2 It is a schematic diagram of the rear end structure of the utility model.
[0013] Figure 3 It is a structural schematic diagram of the axle housing.
[0014] Figure 4 Schematic diagram of the rear end structure of the axle housing.
[0015] Figure 5 This is a schematic diagram of the structure of this tooling fixture.
[0016] Figure 6 This is a top view of the auxiliary positioning block.
[0017] Figure 7 This is the left view of the auxiliary positioning block.
[0018] Figure 8 This is the rear view of the auxiliary positioning block.
[0019] In the figure: 1, base plate, 2, first pressure plate, 3, second pressure plate, 4, front positioning column, 5, auxiliary positioning block, 51, first positioning surface, 52, first positioning hole, 53, second positioning surface, 54, second positioning hole, 55, third positioning surface, 6, positioning pin, 7, rear positioning column, 8, axle housing, 81, first processing surface, 82, second processing surface, 83, third processing surface. DETAILED DESCRIPTION
[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the specification. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] The following is combined with Figure 1-8The specific implementation methods of the utility model are further elaborated in detail: a tooling fixture for processing the central housing of an axle, comprising a fixture body and an axle housing 8, wherein the axle housing 8 is mounted on the fixture body, the front end face of the axle housing 8 is provided with a first processing face 81, and the lower end face of the axle housing 8 is provided with a positioning pin hole; the fixture body comprises a bottom plate 1, a first pressing plate 2, a second pressing plate 3, a front positioning column 4 and a rear positioning column 7; a positioning pin 6 is provided on the bottom plate 1, the positioning pin 6 is matched with the positioning pin hole of the axle housing 8, and the positioning pin hole is installed on the positioning pin 6; the front positioning column 4 is provided on both sides of the positioning pin 6, and the front positioning column 4 is provided on the rear end face of the axle housing 8; The positioning column 4 is provided with an auxiliary positioning block 5, and a threaded hole is provided on the front end surface of the front positioning column 4; the auxiliary positioning block 5 is a "┛"-shaped square block, and a groove is provided at the corner of the auxiliary positioning block 5; a first positioning surface 51 is provided on the side surface of the rear end of the auxiliary positioning block 5, and a transverse first positioning hole 52 is provided on the first positioning surface 51; a second positioning surface 53 is provided on the side surface of the left end of the auxiliary positioning block 5, and a longitudinal second positioning hole 54 is provided on the second positioning surface 53; a third positioning surface 55 is provided on the left side of the second positioning surface 53, and the second positioning surface 53 is parallel to the third positioning surface 55; during the installation of the axle housing 8, a bolt A is used to penetrate the second positioning surface 51 to fix the second positioning surface 53. The second positioning surface 53 is fitted with the front end surface of the front positioning column 4, and the third positioning surface 55 is fitted with the first processed surface 81 of the axle housing 8; then the bolt B is passed through the first positioning hole 52, and the left end of the bolt B passes through the auxiliary positioning block 5, and the left end surface of the bolt B is fitted with the inner side of the first processed surface 81; the auxiliary positioning blocks 5 at the left and right ends have the same structure; the left side of the bottom plate 1 is provided with a first pressing plate 2, and the first pressing plate 2 is adapted to the hole at the left end of the axle housing 8; the right side of the bottom plate 1 is provided with a second pressing plate 3, and the second pressing plate 3 is adapted to the hole at the right end of the axle housing 8; the first A positioning block is provided under the pressure head of a pressure plate 2; a positioning block is provided under the pressure head of the second pressure plate 3; the positioning blocks under the first pressure plate 2 and the second pressure plate 3 are used to support the axle housing 8; the first pressure plate 2 and the second pressure plate 3 are respectively installed at the two ends of the axle housing 8, and the pressure heads of the first pressure plate 2 and the second pressure plate 3 are respectively installed in the holes at the left and right ends of the axle housing 8; the rear positioning column 7 is located at the rear end of the base plate 1, and the distance between the rear positioning column 7 and the front positioning column 4 is adapted to the width of the axle housing 8; the rear positioning column 7 is installed at the rear end of the axle housing 8, and the position of the rear positioning column 7 should not hinder the processing of the second positioning surface 53 and the third positioning surface 55.
[0022] The use process of the utility model is as follows: first, install the assembled fixture on the workbench of the machine tool and position it; then install the positioning pin hole of the axle housing 8 on the positioning pin 6; use bolt A to pass through the second positioning hole 54 of the left auxiliary positioning block 5, and install bolt A in the threaded hole on the front end surface of the front positioning column 4; make the second positioning surface 53 fit with the front end surface of the front positioning column 4, and the third positioning surface 55 fit with the first processing surface 81 of the axle housing 8; then use bolt B to pass through the first positioning hole 52, and the bolt B is The left end passes through the auxiliary positioning block 5, and the left end face of the bolt B fits with the inner side of the first processing surface 81; the auxiliary positioning block 5 on the right is installed in the same way; then the positioning head of the rear positioning column 7 is adjusted to prevent the axle housing 8 from displacement; then the first pressing plate 2 and the second pressing plate 3 are installed in the holes at the left and right ends of the axle housing 8; then the bolts A and B are loosened to remove the auxiliary positioning block 5; after the installation is completed, the machine tool is started for processing, and after the processing is completed, the processed axle housing 8 is removed; if processing is required again, the above steps can be repeated.
[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
[0024] The parts not described in detail in this utility model are prior art.
Claims
1. A tooling fixture for machining a central housing of an axle, comprising a fixture body and an axle housing (8), wherein: The axle housing (8) is mounted on a fixture body, the front end surface of the axle housing (8) is provided with a first processing surface (81), and the lower end surface of the axle housing (8) is provided with a positioning pin hole; the fixture body comprises a base plate (1), a first pressure plate (2), a second pressure plate (3), a front positioning column (4) and a rear positioning column (7); the base plate (1) is provided with a positioning pin (6), and the positioning pin (6) is matched with the positioning pin hole of the axle housing (8); the front positioning column (4) is arranged on both sides of the positioning pin (6), and the front positioning column (4) is provided with an auxiliary positioning block (5); the left side of the base plate (1) is provided with a first pressure plate (2), and the right side of the base plate (1) is provided with a second pressure plate (3); the rear positioning column (7) is located at the rear end of the base plate (1).
2. A fixture for processing a central housing of an axle according to claim 1, characterized in that: The auxiliary positioning block (5) is a "┛"-shaped square block, and a first positioning surface (51) is provided on the side surface of the rear end of the auxiliary positioning block (5), and a transverse first positioning hole (52) is provided on the first positioning surface (51); a second positioning surface (53) is provided on the side surface of the left end of the auxiliary positioning block (5), and a longitudinal second positioning hole (54) is provided on the second positioning surface (53); and a third positioning surface (55) is provided on the left side of the second positioning surface (53).
3. A fixture for processing a central housing of an axle according to claim 2, characterized in that: The auxiliary positioning block (5) is provided with a groove at a corner.
4. A fixture for machining axle center housing according to claim 1, characterized in that: A positioning block is provided below the pressing head of the first pressing plate (2).
5. The fixture for machining the central housing of an axle according to claim 1, characterized in that: A positioning block is provided below the pressing head of the second pressing plate (3).
6. The fixture for machining the central housing of an axle according to claim 1, characterized in that: A threaded hole is provided on the front end surface of the front positioning column (4).