Tool clamp for machining axle central shell

Abstract

The utility model discloses a frock clamp for processing axle central shell, including clamp body and axle shell, said axle shell is installed on the clamp body, the middle part of axle shell lower end face is provided with a first positioning surface, the left and right ends of first positioning surface are respectively provided with a first positioning hole and a second positioning hole; the left side and the right side of the lower end face of the axle shell are provided with a second positioning face and a third positioning face respectively, and the second positioning face and the third positioning face are located in the same plane and are parallel to the first positioning face. A rectangular bottom plate is arranged at the lower end of the clamp body, and a third pressing plate, a first pressing plate and a second pressing plate are sequentially arranged on the upper end face of the bottom plate from left to right. A right positioning pin is arranged at the right end of the upper end surface of the bottom plate; a left positioning pin is arranged at the left end of the upper end surface of the bottom plate; the clamp can simplify the machining process and reduce the production cost; in the machining process, a plurality of working procedures are combined together, the clamping frequency is reduced, and the machining precision of the workpiece is improved.

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 center shell of the axle is a relatively complex workpiece, and the processing of the center shell of the axle requires multiple processing steps to complete; for example, when the left and right end faces of the center shell of the axle need to be processed, clamping is required. After the left and right end faces are processed, the center shell of the axle needs to be removed from the fixture and enter the next processing process; when the center shell of the axle enters the next process, it needs to be reinstalled on a new fixture to process the front and rear sides of the center shell of the axle; during the processing process, repeated clamping can easily cause the shape and position tolerances of the workpiece to exceed the standard, and also increase the processing steps, which increases the production cost. 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. To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a tooling fixture for processing the central housing of an axle, comprising a fixture body and an axle housing, the axle housing being mounted on the fixture body, a first positioning surface being provided in the middle of the lower end surface of the axle housing, a first positioning hole and a second positioning hole being provided at the left and right ends of the first positioning surface respectively; a second positioning surface and a third positioning surface being provided at the left and right sides of the lower end surface of the axle housing respectively, the second positioning surface and the third positioning surface being located in the same plane and being parallel to the first positioning surface;

[0004] The lower end of the clamp body is a rectangular base plate, and the upper end surface of the base plate is provided with a third pressure plate, a first pressure plate and a second pressure plate from left to right in sequence; the right end of the upper end surface of the base plate is provided with a right positioning pin, and the right positioning pin is adapted to the second positioning hole; the left end of the upper end surface of the base plate is provided with a left positioning pin, and the left positioning pin is adapted to the first positioning hole.

[0005] A right positioning block is respectively arranged at the front and rear of the right positioning pin, and a left positioning block is respectively arranged at the front and rear of the left positioning pin.

[0006] A first positioning block is arranged on the upper surface of the bottom plate, and the first positioning block is located below the pressing head of the first pressing plate.

[0007] A second positioning block is arranged on the upper surface of the bottom plate, and the second positioning block is located below the pressing head of the second pressing plate.

[0008] A third positioning block is arranged on the upper surface of the bottom plate, and the third positioning block is located below the pressing head of the third pressing plate.

[0009] The second positioning surface and the third positioning surface are in contact with the upper end surface of the bottom plate.

[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, which can simplify the processing flow and reduce production costs; it combines multiple working steps together during the processing, reduces the number of clamping times, and improves the processing accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front end schematic diagram of the utility model.

[0012] Figure 2 It is a schematic diagram of the rear end of the utility model.

[0013] Figure 3 Schematic diagram of the axle housing.

[0014] Figure 4 A schematic diagram of the fixture body.

[0015] Figure 5 A top view of the fixture body.

[0016] In the figure: 1, bottom plate, 2, first pressure plate, 21, first positioning block, 3, second pressure plate, 31, second positioning block, 4, third pressure plate, 41, third positioning block, 5, right positioning pin, 6, right positioning block, 7, left positioning block, 8, left positioning pin, 9, axle housing, 91, first positioning surface, 92, first positioning hole, 93, second positioning hole, 94, second positioning surface, 95, third positioning surface. DETAILED DESCRIPTION

[0017] 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.

[0018] The following is a further detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings: A tooling fixture for processing a central housing of an axle, comprising a fixture body and an axle housing 9, the axle housing 9 being mounted on the fixture body, a first positioning surface 91 being provided in the middle of the lower end surface of the axle housing 9, a first positioning hole 92 and a second positioning hole 93 being provided at the left and right ends of the first positioning surface 91; a second positioning surface 94 and a third positioning surface 95 being provided at the left and right sides of the lower end surface of the axle housing 9, respectively, the second positioning surface 94 and the third positioning surface 95 being located in the same plane and parallel to the first positioning surface 91;

[0019] The lower end of the clamp body is a rectangular bottom plate 1, and the upper end surface of the bottom plate 1 is provided with a third pressing plate 4, a first pressing plate 2, and a second pressing plate 3 from left to right in sequence; a right locating pin 5 is provided at the right end of the upper end surface of the bottom plate 1, and the right locating pin 5 is matched with the second locating hole 93; a left locating pin 8 is provided at the left end of the upper end surface of the bottom plate 1, and the left locating pin 8 is matched with the first locating hole 92; a right locating block 6 is provided at the front and rear of the right locating pin 5, and a left locating block 7 is provided at the front and rear of the left locating pin 8, and the heights of the left locating block 7 and the right locating block 6 are matched with the height of the first locating surface 91; when the vehicle When the axle housing 9 is installed on the fixture body, the top ends of the left positioning block 7 and the right positioning block 6 are in contact with the first positioning surface 91, and the left positioning block 7 and the right positioning block 6 can effectively prevent the axle housing 9 from being deformed, thereby ensuring the processing accuracy of the axle housing 9; the second positioning surface 94 and the third positioning surface 95 are in contact with the upper end surface of the bottom plate 1; when the axle housing 9 is installed on the fixture body, the left positioning pin 8, the right positioning pin 5 and the plane where the second positioning surface 94 and the third positioning surface 95 are located form two pins and one surface positioning, thereby ensuring that the axle housing 9 does not generate displacement during processing, ensuring the accuracy after processing;

[0020] A first positioning block 21 is provided on the upper end surface of the base plate 1, and the first positioning block 21 is located below the pressure head of the first pressure plate 2, and the height of the first positioning block 21 is adapted to the height of the lower end surface of the axle housing 9 and the upper end surface of the base plate 1; a second positioning block 31 is provided on the upper end surface of the base plate 1, and the second positioning block 31 is located below the pressure head of the second pressure plate 3, and the height of the second positioning block 31 is adapted to the height of the lower end surface of the axle housing 9 and the upper end surface of the base plate 1; a third positioning block 41 is provided on the upper end surface of the base plate 1, and the third positioning block 41 is located below the pressure head of the third pressure plate 4, and the height of the third positioning block 41 is adapted to the height of the lower end surface of the axle housing 9 and the upper end surface of the base plate 1; when the first pressure plate 2, the second pressure plate 3 and the third pressure plate 4 press the axle housing 9, the first positioning block 21, the second positioning block 31 and the third positioning block 41 play a supporting role at the lower end of the axle housing 9 to prevent the axle housing 9 from being deformed due to excessive pressure, so that the axle housing 9 is scrapped.

[0021] The use process of the utility model is as follows: first, fix the base plate 1 of the fixture body on the workbench of the machine tool and calibrate it; then install the unprocessed axle housing 9 on the fixture body; wherein, make the second positioning surface 94 and the third positioning surface 95 contact with the upper end surface of the base plate 1, insert the top end of the left positioning pin 8 into the first positioning hole 92, and insert the top end of the right positioning pin 5 into the second positioning hole 93; after placement, use the first pressing plate 2, the second pressing plate 3 and the third pressing plate 4 to fix the axle housing 9; after fixing, start the machine tool for processing; after processing, remove the axle housing 9, and so on, reinstall the unprocessed axle housing 9 for processing.

[0022] 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.

[0023] 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 (9), characterized in that: The axle housing (9) is mounted on the fixture body, a first positioning surface (91) is provided in the middle of the lower end surface of the axle housing (9), and a first positioning hole (92) and a second positioning hole (93) are provided at the left and right ends of the first positioning surface (91); a second positioning surface (94) and a third positioning surface (95) are provided at the left and right sides of the lower end surface of the axle housing (9), respectively, and the second positioning surface (94) and the third positioning surface (95) are located in the same plane and are parallel to the first positioning surface (91); The lower end of the clamp body is a rectangular bottom plate (1), and the upper end surface of the bottom plate (1) is provided with a third pressure plate (4), a first pressure plate (2) and a second pressure plate (3) from left to right in sequence; the right end of the upper end surface of the bottom plate (1) is provided with a right positioning pin (5), and the right positioning pin (5) is matched with the second positioning hole (93); the left end of the upper end surface of the bottom plate (1) is provided with a left positioning pin (8), and the left positioning pin (8) is matched with the first positioning hole (92).

2. A fixture for processing a central housing of an axle according to claim 1, characterized in that: A right positioning block (6) is provided at the front and rear of the right positioning pin (5), and a left positioning block (7) is provided at the front and rear of the left positioning pin (8).

3. A fixture for machining axle center housing according to claim 1, characterized in that: A first positioning block (21) is provided on the upper end surface of the bottom plate (1), and the first positioning block (21) is located below the pressure head of the first pressure plate (2).

4. A fixture for machining axle center housing according to claim 1, characterized in that: A second positioning block (31) is provided on the upper end surface of the bottom plate (1), and the second positioning block (31) is located below the pressing head of the second pressing plate (3).

5. The fixture for machining the central housing of an axle according to claim 1, characterized in that: A third positioning block (41) is provided on the upper end surface of the bottom plate (1), and the third positioning block (41) is located below the pressing head of the third pressing plate (4).

6. The fixture for machining the central housing of an axle according to claim 1, characterized in that: The second positioning surface (94) and the third positioning surface (95) are in contact with the upper end surface of the bottom plate (1).

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