A special fixture for machining a gearbox front housing

Abstract

The utility model discloses a special fixture of gearbox front casing processing, including bottom plate, the top of bottom plate is provided with cross column, the outer wall fixedly connected with shell of cross column, the inner wall top fixedly connected with support column of shell, the inner wall and the inner wall of support column of shell are respectively through bearing rotation connection with screw column, the outer wall screw thread connection has vertical column of screw column. The utility model relates to gearbox processing technical field, this special fixture of gearbox front casing processing, through the cooperation between shell, screw column, support column, vertical column, round block, recess and through -hole, realized the short -distance movement of clamping block, the size of the gearbox front casing that is about the same is clamped, solved the clamping of the gearbox front casing that is about the same in size, lead to repeatedly dismounting fixture in this process, greatly reduced the clamping efficiency, thereby reduced the professional fixture use effect problem.

Description

Technical Field

[0001] This utility model relates to the field of gearbox processing technology, specifically a special fixture for processing the front housing of a gearbox. Background Technology

[0002] The gearbox is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio between the output shaft and the input shaft in a fixed or progressive manner. The front housing of the gearbox is an important component of the gearbox. Due to the high difficulty in machining the front housing, its thin walls and poor rigidity, it is formed by die casting. Therefore, special fixtures are required to hold it during machining.

[0003] When using the existing clamps, the workers fix the clamping components to the base plate with bolts, place the front housing of the gearbox on the base plate, press the clamping head inside the clamping components against the surface of the housing, and finally fix the clamping head with bolts and nuts, thus clamping the front housing of the gearbox.

[0004] However, when clamping the front housing of a gearbox that is of similar size, the operator needs to contact the clamping component to move it to the appropriate position and then re-fix it to clamp the front housing of the gearbox. This process requires repeated disassembly and assembly of the clamp, which is time-consuming and labor-intensive, greatly reducing clamping efficiency and thus reducing the effectiveness of the professional clamp. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a special fixture for machining the front housing of a gearbox. This solves the problem that when clamping gearbox front housings of similar dimensions, the fixture needs to be repeatedly disassembled and reassembled, which is time-consuming and labor-intensive, significantly reducing clamping efficiency and thus diminishing the effectiveness of the specialized fixture.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a special fixture for machining the front housing of a gearbox, comprising a base plate, a horizontal column at the top of the base plate, an outer shell fixedly connected to the outer wall of the horizontal column, a support column fixedly connected to the top of the inner wall of the outer shell, threaded columns rotatably connected to the inner wall of the outer shell and the inner wall of the support column respectively via bearings, a vertical column threadedly connected to the outer wall of the threaded column, the vertical column extending to the outside of the outer shell through an opening, and a clamping block provided below the vertical column.

[0007] Preferably, a circular block is fixed to the end of the threaded column, and the side wall of the circular block has a groove.

[0008] Preferably, the inner wall of the clamping block has an insertion hole, the end of the vertical column is inserted into the inner wall of the insertion hole, the inner wall of the clamping block has a locking hole and a through hole respectively, one side of the locking hole is connected to the through hole, a buckle passes through the lower part of the inner wall of the vertical column and is movably connected to the vertical column, the outer wall of the buckle is inserted into the inner wall of the locking hole, and a spring is fixedly connected to the inner wall of the buckle.

[0009] Preferably, a limiting block is fixedly connected to the side of the outer wall of the buckle away from the buckle hole.

[0010] Preferably, the surface of the base plate is provided with positioning grooves and threaded holes, a horizontal plate is attached to the surface of the base plate, a positioning block is fixed to the bottom of the horizontal plate, the outer wall of the positioning block is inserted into the inner wall of the positioning groove, a bolt is threaded to the inner wall of the horizontal plate, and the outer wall of the bolt is threaded to the inner wall of the threaded hole.

[0011] Preferably, a screw is fixed to the top of the horizontal plate, the outer wall of the screw penetrates the horizontal column, a nut is threaded onto the outer wall of the screw, and the bottom of the nut is attached to the outer wall of the horizontal column.

[0012] Preferably, the surface of the base plate is provided with mounting holes.

[0013] Beneficial effects

[0014] This utility model provides a special fixture for machining the front housing of a gearbox. It has the following advantages: This special fixture for machining the front housing of a gearbox, through the cooperation of the outer shell, threaded column, support column, vertical column, circular block, groove, and through hole, enables the clamping block to move a short distance, clamping gearbox front housings of similar dimensions. This solves the problem that when clamping gearbox front housings of similar dimensions, the fixture needs to be repeatedly disassembled and reassembled, which is time-consuming and labor-intensive, significantly reducing clamping efficiency and thus reducing the effectiveness of professional fixtures.

[0015] By employing through holes, snap-fit ​​mechanisms, locking holes, springs, insertion holes, and limiting blocks, the clamping blocks can be replaced to clamp gearbox front housings of different shapes. This solves the problem that clamping blocks are often fixed and have a single shape. When encountering gearbox front housings of different shapes, fixed clamping blocks cannot be specifically clamped according to the special shape of the housing, which can easily lead to unstable clamping, workpiece shaking or displacement during processing, and thus affect processing accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 An exterior schematic diagram;

[0018] Figure 3 for Figure 1 Schematic diagram of the structure of the base plate, screw, and clamping block;

[0019] Figure 4 for Figure 3 A structural schematic diagram of the threaded column, outer shell, and vertical column;

[0020] Figure 5 for Figure 4 A schematic diagram of the through hole, spring, and clamping block;

[0021] Figure 6 for Figure 2 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Base plate; 2. Mounting hole; 3. Positioning groove; 4. Threaded hole; 5. Horizontal plate; 6. Positioning block; 7. Bolt; 8. Screw; 9. Horizontal column; 10. Nut; 11. Clamping block; 12. Outer shell; 13. Threaded column; 14. Support column; 15. Vertical column; 16. Round block; 17. Groove; 18. Through hole; 19. Buckle; 20. Locking hole; 21. Spring; 22. Insertion hole; 23. Limiting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Clamping gearbox front housings of similar size requires repeated disassembly and assembly of the fixtures. Frequent disassembly and assembly is time-consuming and labor-intensive, significantly reducing clamping efficiency and thus diminishing the effectiveness of the specialized fixtures.

[0025] In view of this, the present invention provides a special fixture for machining the front housing of a gearbox. Through the cooperation between the outer shell, threaded column, support column, vertical column, round block, groove and through hole, the clamping block can move a short distance to clamp gearbox front housings of similar size. This solves the problem that when clamping gearbox front housings of similar size, the fixture needs to be repeatedly disassembled and assembled, which is time-consuming and labor-intensive, greatly reducing clamping efficiency and thus reducing the effectiveness of the special fixture.

[0026] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly introduced below.

[0027] Example 1, by Figure 1-5 As can be seen, the special fixture for processing the front housing of the gearbox in this case includes a base plate 1, a horizontal column 9 is provided on the top of the base plate 1, an outer shell 12 is fixedly connected to the outer wall of the horizontal column 9, a support column 14 is fixedly connected to the top of the inner wall of the outer shell 12, a threaded column 13 is rotatably connected to the inner wall of the outer shell 12 and the inner wall of the support column 14 respectively through bearings, a vertical column 15 is threadedly connected to the outer wall of the threaded column 13, the vertical column 15 extends to the outside of the outer shell 12 through an opening, and a clamping block 11 is provided below the vertical column 15;

[0028] In the specific implementation process, it is worth noting that when processing the front housing of the gearbox, the worker places the front housing of the gearbox on the base plate 1, and then clamps the front housing of the gearbox by clamping the clamping blocks 11. Finally, the processing is carried out. When clamping the front housing of the gearbox with similar size, the threaded column 13 is rotated in sequence. The support column 14 supports the threaded column 13 to make it rotate stably. The threaded column 13 drives the vertical column 15 to move. The vertical column 15 moves in the horizontal column 9 and is limited. The vertical column 15 then drives the clamping block 11 to move. The clamping block 11 is moved to the position to be clamped. After completion, the threaded column 13 stops rotating, so that the clamping block 11 can move a short distance to clamp the front housing of the gearbox with similar size.

[0029] Furthermore, a circular block 16 is fixed to the end of the threaded column 13, and a groove 17 is provided on the side wall of the circular block 16;

[0030] In the specific implementation process, it is worth noting that the groove 17 is hexagonal in shape. When moving the clamping block 11, the operator inserts an external tool into the groove 17 and rotates the tool, thereby causing the circular block 16 to rotate. The circular block 16 drives the threaded column 13 to rotate. After the rotation is completed, the tool is removed from the groove 17, thereby driving the threaded column 13 to rotate.

[0031] Furthermore, the inner wall of the clamping block 11 is provided with an insertion hole 22, and the end of the vertical column 15 is inserted into the inner wall of the insertion hole 22. The inner wall of the clamping block 11 is provided with a locking hole 20 and a through hole 18 respectively. One side of the locking hole 20 is connected to the through hole 18. A buckle 19 passes through the lower part of the inner wall of the vertical column 15 and is movably connected to the vertical column 15. The outer wall of the buckle 19 is inserted into the inner wall of the locking hole 20, and a spring 21 is fixedly connected to the inner wall of the buckle 19.

[0032] In the specific implementation process, it is worth noting that when the clamping block 11 needs to be replaced, the staff uses a tool to insert into the through holes 18 on both sides, thereby squeezing the buckle 19. The buckle 19 moves in the vertical column 15, and is guided to finally leave the buckle 19 out of the hole 20. At this time, the clamping block 11 is released from its fixation. The staff moves the clamping block 11, and the clamping block 11 drives the insertion hole 22 to move away from the vertical column 15. When replacing it, the staff first squeezes the buckle 19 again, and the spring 21 is compressed. The spring 21 model is selected according to the actual situation. Then, the insertion hole 22 inside the replacement clamping block 11 is inserted into the vertical column 15. When the buckle 19 is aligned with the hole 20, the spring 21 rebounds, and the buckle 19 is inserted into the corresponding hole 20 by the elastic force, thus completing the replacement of the clamping block 11 and realizing the replacement of the clamping block 11 to clamp different shaped gearbox front housings.

[0033] Furthermore, a limiting block 23 is fixedly connected to the side of the outer wall of the buckle 19 away from the buckle hole 20;

[0034] In the specific implementation process, it is worth noting that when the buckle 19 moves, the buckle 19 drives the limiting block 23 to move, so that the limiting block 23 limits the buckle 19 and prevents the buckle 19 from moving out of the interior of the vertical column 15.

[0035] Furthermore, the surface of the base plate 1 is provided with positioning grooves 3 and threaded holes 4 respectively. A horizontal plate 5 is attached to the surface of the base plate 1. A positioning block 6 is fixed to the bottom of the horizontal plate 5. The outer wall of the positioning block 6 is inserted into the inner wall of the positioning groove 3. A bolt 7 is threadedly connected to the inner wall of the horizontal plate 5. The outer wall of the bolt 7 is threadedly connected to the inner wall of the threaded hole 4.

[0036] In the specific implementation process, it is worth noting that the screw 8, the crossbar 9, the clamping block 11 and the nut 10 form a clamping assembly. When it is necessary to adjust the position of the clamping assembly, the operator rotates the bolt 7 to rotate the bolt 7 out of the threaded hole 4, thereby releasing the clamping assembly from its fixation. After that, the operator moves the screw 8 to the appropriate position. At this time, the screw 8 drives the crossbar 5 to move, and the crossbar 5 drives the positioning block 6 to move, inserting the positioning block 6 into the corresponding positioning groove 3. Finally, the operator rotates the bolt 7 in the opposite direction to rotate the bolt 7 into the corresponding threaded hole 4, thereby adjusting the position of the clamping assembly.

[0037] Furthermore, a screw 8 is fixed to the top of the horizontal plate 5, the outer wall of the screw 8 penetrates the horizontal column 9, and a nut 10 is threaded onto the outer wall of the screw 8, with the bottom of the nut 10 fitting against the outer wall of the horizontal column 9.

[0038] In the specific implementation process, it is worth noting that when clamping the front housing of the gearbox, the operator inserts the cross post 9 into the screw 8, which in turn moves the clamping block 11 to press against the outer wall of the front housing of the gearbox. After that, the operator rotates the nut 10 onto the screw 8, and the nut 10 rotates on the screw 8. Finally, the nut 10 is attached to the cross post 9, fixing the position of the clamping block 11, thereby clamping the front housing of the gearbox. When the operator rotates the nut 10 out of the screw 8, the clamping block 11 is released, thereby releasing the clamping of the front housing of the gearbox and achieving the clamping of the front housing of the gearbox.

[0039] Example 2, by Figure 1-5 It can be seen that mounting holes 2 are provided on the surface of the base plate 1;

[0040] In the specific implementation process, it is worth noting that there are four mounting holes 2, which are evenly distributed at the four corners of the base plate 1. The mounting holes 2 are circular in shape. The workers use the mounting holes 2 to fix the base plate 1 to the external processing equipment, thereby fixing the special fixture.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special fixture for machining the front housing of a gearbox, comprising a base plate (1), characterized in that: A horizontal column (9) is provided on the top of the base plate (1). A shell (12) is fixedly connected to the outer wall of the horizontal column (9). A support column (14) is fixedly connected to the top of the inner wall of the shell (12). A threaded column (13) is rotatably connected to the inner wall of the shell (12) and the inner wall of the support column (14) through bearings. A vertical column (15) is threadedly connected to the outer wall of the threaded column (13). The vertical column (15) extends to the outside of the shell (12) through an opening. A clamping block (11) is provided below the vertical column (15).

2. The special fixture for machining the front housing of a gearbox according to claim 1, characterized in that: The end of the threaded column (13) is fixed with a round block (16), and the side wall of the round block (16) is provided with a groove (17).

3. The special fixture for machining the front housing of a gearbox according to claim 1, characterized in that: The inner wall of the clamping block (11) is provided with an insertion hole (22). The end of the vertical column (15) is inserted into the inner wall of the insertion hole (22). The inner wall of the clamping block (11) is provided with a locking hole (20) and a through hole (18). One side of the locking hole (20) is connected to the through hole (18). A buckle (19) passes through the lower part of the inner wall of the vertical column (15) and is movably connected to the vertical column (15). The outer wall of the buckle (19) is inserted into the inner wall of the locking hole (20). A spring (21) is fixedly connected to the inner wall of the buckle (19).

4. A special fixture for machining the front housing of a gearbox according to claim 3, characterized in that: A limiting block (23) is fixedly connected to the side of the outer wall of the buckle (19) away from the buckle hole (20).

5. A special fixture for machining the front housing of a gearbox according to claim 1, characterized in that: The base plate (1) has a positioning groove (3) and a threaded hole (4) respectively. A horizontal plate (5) is attached to the surface of the base plate (1). A positioning block (6) is fixed to the bottom of the horizontal plate (5). The outer wall of the positioning block (6) is inserted into the inner wall of the positioning groove (3). A bolt (7) is threadedly connected to the inner wall of the horizontal plate (5). The outer wall of the bolt (7) is threadedly connected to the inner wall of the threaded hole (4).

6. A special fixture for machining the front housing of a gearbox according to claim 5, characterized in that: A screw (8) is fixed to the top of the horizontal plate (5), the outer wall of the screw (8) penetrates the horizontal column (9), and a nut (10) is threaded onto the outer wall of the screw (8), with the bottom of the nut (10) fitting against the outer wall of the horizontal column (9).

7. A special fixture for machining the front housing of a gearbox according to claim 1, characterized in that: The base plate (1) has mounting holes (2) on its surface.

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