A hole-reaming tool for machining the outer cylinder of a shock absorber

Abstract

This invention relates to the field of shock absorber processing and discloses a reaming fixture for processing the outer cylinder of a shock absorber. The fixture includes a fixture base, on the top of which a first support base, a second support base, and a third support base are fixedly mounted. A reaming structure is mounted on the top of the first support base. This invention includes a driving structure, a reaming assembly, a heating assembly, a forming assembly, and a cooling structure. The combination of the heating assembly and the forming assembly increases the reaming quality of the shock absorber outer cylinder. The cooling structure cools the reamed outer cylinder. This cooling structure, combined with the design of the reaming base and the clamping block, avoids water splashing and localized cooling of the shock absorber outer cylinder during cooling, while also preventing water waste, thus improving efficiency and reducing operating costs.

Description

Technical Field

[0001] This invention relates to the field of shock absorber processing, and in particular to a hole-expanding tool for processing the outer cylinder of a shock absorber. Background Technology

[0002] In order to quickly dampen the vibration of the frame and body, and improve the smoothness and comfort of electric vehicle driving, shock absorbers are generally installed on the suspension system of electric vehicles. The shock absorber is mainly used to suppress the impact when the spring absorbs the shock feedback and the impact absorbed from the spring surface. The shock absorber is one of the components used in electric vehicles. The shock absorber uses an outer cylinder, and one end of the outer cylinder needs to be enlarged using a hole enlarging tool.

[0003] Patent application number 201922312470.2 discloses a movable metal tube expansion forming device, including a support plate and an expansion block. A slide rail is fixedly connected to the top of the support plate, and a support frame is slidably connected to the top of the slide rail. A fixed frame is fixedly connected to the right side of the top of the support plate, and a hydraulic rod is fixedly connected to the right side of the inner wall of the fixed frame. The output end of the hydraulic rod passes through the fixed frame and extends to the outside of the fixed frame. A connecting block is slidably connected between the two sides of the inner wall of the support frame. A spring block is fixedly connected to the top of the connecting block, passing through the support frame and extending to the outside of the support frame. A pulling plate is fixedly connected to the top of the spring block. The top of the inner wall of the support frame is fixed between the top of the connecting block and the surface of the spring block. The device includes a first spring, a locking block fixedly connected to the bottom of the connecting block, a locking hole adapted to the locking block on the top of the expansion block, a metal tube movably connected between the two sliding blocks, and a heating frame slidably connected to the top of the support plate and directly below the metal tube. This movable metal tube expansion forming device has a fixed plate rotatably connected to the end of a rotating rod away from the motor. A fixed block is fixedly connected to the right side of the fixed plate, and sliding blocks are slidably connected to both the front and back sides of the right side of the fixed plate. A second spring is fixedly connected between the sliding block and the side opposite the fixed block. This allows the metal tube opening to be expanded to be heated evenly, facilitating the expansion of the metal tube opening, increasing the pass rate of metal tube opening expansion, and improving the practicality of the device.

[0004] Regarding the aforementioned technologies, a heating device is used to heat and expand the pipe opening. However, after the expansion is completed, the pipe is manually placed in a water tank for cooling and shaping to avoid deformation at the pipe opening. This cooling and shaping method is inefficient. As the number of cooling cycles increases, the water in the tank becomes more impurity-laden, requiring regular water replacement, which is quite cumbersome. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides a hole-expanding tool for machining the outer cylinder of a shock absorber.

[0006] The present invention provides a hole-expanding tooling for machining the outer cylinder of a shock absorber, which adopts the following technical solution:

[0007] A reaming fixture for processing the outer cylinder of a shock absorber includes a fixture base. A first support base, a second support base, and a third support base are fixedly installed on the top of the fixture base. A reaming structure is installed on the top of the first support base. A reaming component, an electric heating component, and a forming component are provided in the reaming structure. A cooling structure is provided on the top of the second support base. A drying structure is provided on the top of the third support base. A driving structure is installed on the top of the fixture base, and the driving structure drives a rotating disk to rotate. A plurality of reaming seats are provided on the rotating disk. A lifting component is provided at each reaming seat, and the lifting component drives a clamping block to move up and down. A cavity for ventilation is provided inside the reaming seat and the clamping block. A plurality of air outlets communicating with the cavity are opened on the outer wall of the reaming seat and the clamping block. An air inlet on the outer wall of the reaming seat and the clamping block is connected to a corresponding hot air blower through a hose.

[0008] The cooling structure includes a sixth connecting block mounted on the top of the second support base. A seventh cylinder is fixedly mounted on one side of the sixth connecting block. The output end of the seventh cylinder is fixedly mounted between the cylinder and the water receiving cover. One end of the water receiving cover is open and has an annular sealing gasket. A water spray ring is provided inside the water receiving cover. The water inlet pipe at the top of the water spray ring is connected to a water pipe via a flexible hose. The water outlet at the bottom of the water receiving cover is connected to a water storage tank via a flexible hose.

[0009] Preferably, the drying structure includes a seventh connecting block mounted on the top of the third support base. An eighth cylinder is fixedly mounted on one end of the seventh connecting block. The output end of the eighth cylinder is fixedly mounted between the eighth cylinder and the second mounting block. A hot air outlet pipe is fixedly connected to the second mounting block. One end of the hot air outlet pipe is connected to a hot air nozzle, and the other end of the hot air outlet pipe is connected to a hot air blower via a hose. A rotating assembly is mounted on the hot air outlet pipe. A first driven gear and a rotating disk are mounted on the rotating assembly. A U-shaped block is fixedly mounted on the outer wall of the rotating disk. Water-absorbing cotton is provided on the inner wall of the U-shaped block. A first drive motor is fixedly mounted on the side wall of the second mounting block. The output end of the first drive motor is fixedly mounted between the first drive gear and the first driven gear. The first drive gear and the first driven gear are meshed together.

[0010] Preferably, the reaming assembly includes a first connecting block fixedly installed on the top of a first support base, a first cylinder fixedly installed at one end of the first connecting block, the output end of the first cylinder fixedly installed between the first cylinder and an L-shaped push base, a second connecting block provided on the top of the L-shaped push base, a second cylinder fixedly installed at one end of the second connecting block, the output end of the second cylinder fixedly installed between the second cylinder and a movable base, a fourth connecting block fixedly installed on the top of the movable base, a fourth cylinder fixedly installed at one end of the fourth connecting block, and the output end of the fourth cylinder fixedly connected to the reaming head.

[0011] Preferably, the electric heating assembly includes a third connecting block fixedly installed on the top of the movable seat, a third cylinder fixedly installed at one end of the third connecting block, the output end of the third cylinder fixedly installed between the third cylinder and the first mounting block, and an electric heating ring installed at one end of the first mounting block.

[0012] Preferably, the molding assembly includes two fifth connecting blocks installed at one end of an L-shaped pusher, a fifth cylinder is fixedly installed at one end of each fifth connecting block, the output end of the fifth cylinder is fixedly installed between the fifth cylinder and the molding die, and an arc-shaped groove is provided at one end of the molding die.

[0013] Preferably, the drive structure includes a second drive motor fixedly mounted on the top of the tooling base, the output end of the second drive motor being fixedly connected to a second driving gear, the second driving gear being meshed with a second driven gear, the second driven gear being fixedly mounted on a shaft, one end of the shaft being rotatably mounted to a rotating disk, and the other end of the shaft being rotatably mounted to the tooling base.

[0014] Preferably, a third mounting block is provided at the bottom of the rotating disk, and a ninth cylinder is fixedly mounted at one end of the third mounting block. The output end of the ninth cylinder is fixedly mounted between the cylinder and the clamping protrusion.

[0015] Preferably, the lifting assembly includes an L-shaped seat mounted on the top of the rotary table, and a sixth cylinder is provided on the top of the L-shaped seat. The output end of the sixth cylinder is fixedly connected to the clamping block.

[0016] Preferably, the screw hole at one end of the expansion seat is adapted to be installed with the lead screw, and one end of the lead screw is installed with the bearing seat at one end of the limit block through a bearing.

[0017] In summary, the present invention has the following beneficial technical effects:

[0018] 1. The present invention is provided with a driving structure, a hole-expanding assembly, an electric heating assembly, a forming assembly, and a cooling structure. The combination of the electric heating assembly and the forming assembly can increase the hole-expanding forming quality of the shock absorber outer cylinder by the hole-expanding assembly. The cooling structure cools the shock absorber outer cylinder after hole expansion. The cooling structure, combined with the design of the hole-expanding seat and the clamping block, avoids water splashing during the cooling process and localized cooling of the shock absorber outer cylinder, and also avoids water waste, thereby improving efficiency and reducing operating costs.

[0019] 2. This invention includes a drying component. Because the cooling structure is combined with the expansion seat and the clamping block, the outer cylinder of the shock absorber is only locally cooled. In the drying structure, the hot air nozzle can be placed inside the outer cylinder of the shock absorber. The absorbent cotton on the U-shaped block on the rotating disk fits perfectly against the inner and outer walls of the outer cylinder of the shock absorber after the expansion, thus rapidly drying the locally cooled area of ​​the outer cylinder. Furthermore, the expansion seat and the clamping block can also blow out hot air to dry the outer wall of the outer cylinder of the shock absorber, improving the drying efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a hole-expanding tool for machining the outer cylinder of a shock absorber according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the position and structure of the first support base in an embodiment of the present invention;

[0022] Figure 3 This is an embodiment of the present invention. Figure 2 Enlarged view of the structure at point A;

[0023] Figure 4 This is a schematic diagram of the position and structure of the third support in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the position and structure of the rotating disk in an embodiment of the present invention;

[0025] Figure 6 This is an embodiment of the present invention. Figure 4 Enlarged view of the structure at point B;

[0026] Figure 7 This is an embodiment of the present invention. Figure 5 Enlarged view of the structure at point C;

[0027] Figure 8 This is an embodiment of the present invention. Figure 5 Enlarged view of the structure at point D.

[0028] Explanation of reference numerals in the attached drawings: 1. Tooling base; 2. First support base; 3. Second support base; 4. Third support base; 5. First connecting block; 6. First cylinder; 7. L-shaped push base; 8. Second connecting block; 9. Second cylinder; 10. Third connecting block; 11. Third cylinder; 12. Moving base; 13. First mounting block; 14. Heating ring; 15. Fourth connecting block; 16. Fourth cylinder; 17. Reaming head; 18. Fifth connecting block; 19. Fifth cylinder; 20. Forming mold; 21. Reaming seat; 22. Lead screw; 23. Limiting block; 24. L-shaped seat; 25. Sixth... 26. Cylinder; 27. Clamping block; 28. Rotary disc; 29. ​​Sixth connecting block; 30. Seventh cylinder; 31. Water receiving cover; 32. Water spray ring; 33. Seventh connecting block; 34. Eighth cylinder; 35. Second mounting block; 36. Hot air outlet pipe; 37. First drive motor; 38. First driving gear; 39. Rotary disc; 40. U-shaped block; 41. Hot air nozzle; 42. Second drive motor; 43. Second driving gear; 44. Second driven gear; 45. Shaft; 46. Third mounting block; 47. Ninth cylinder; 48. Clamping protrusion. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-8 The present invention will be described in further detail below.

[0030] This invention discloses a hole-expanding fixture for processing the outer cylinder of a shock absorber, including a fixture base 1. A first support base 2, a second support base 3, and a third support base 4 are fixedly installed on the top of the fixture base 1. A hole-expanding structure is installed on the top of the first support base 2, and a hole-expanding component, an electric heating component, and a forming component are provided in the hole-expanding structure. A cooling structure is provided on the top of the second support base 3, and a drying structure is provided on the top of the third support base 4. A driving structure is installed on the top of the fixture base 1, and the driving structure drives a rotating disk 27 to rotate. A plurality of hole-expanding seats 21 are provided on the rotating disk 27. A lifting component is provided at each hole-expanding seat 21, and the lifting component drives a pressing block 26 to move up and down. A cavity for ventilation is provided inside the hole-expanding seat 21 and the pressing block 26. A plurality of air outlets communicating with the cavity are opened on the outer wall of the hole-expanding seat 21 and the pressing block 26. The air inlet ports on the outer wall of the hole-expanding seat 21 and the pressing block 26 are connected to the corresponding hot air blower through a hose.The cooling structure includes a sixth connecting block 28 mounted on the top of the second support 3. A seventh cylinder 29 is fixedly mounted on one side of the sixth connecting block 28. The output end of the seventh cylinder 29 is fixedly mounted to a water receiving cover 30. One end of the water receiving cover 30 is open and has an annular sealing gasket. A water spray ring 31 is provided inside the water receiving cover 30. The water inlet pipe at the top of the water spray ring 31 is connected to a water pipe via a hose. The water outlet at the bottom of the water receiving cover 30 is connected to a water storage tank via a hose. The drying structure includes a seventh connecting block 32 mounted on the top of the third support 4. An eighth cylinder 33 is fixedly mounted on one end of the seventh connecting block 32. The output end of the eighth cylinder 33 is connected to the second mounting block 38. The second mounting block 34 is fixedly installed between the two mounting blocks. A hot air outlet pipe 35 is fixedly connected to the second mounting block 34. One end of the hot air outlet pipe 35 is connected to the hot air nozzle 41, and the other end of the hot air outlet pipe 35 is connected to the hot air blower through a hose. A rotating assembly is installed on the hot air outlet pipe 35. A first driven gear 38 and a rotating disk 39 are installed on the rotating assembly. A U-shaped block 40 is fixedly installed on the outer wall of the rotating disk 39, and water-absorbing cotton is provided on the inner wall of the U-shaped block 40. A first drive motor 36 is fixedly installed on the side wall of the second mounting block 34. The output end of the first drive motor 36 is fixedly installed between the first drive gear 37 and the first driven gear 38. After the hole is enlarged... The expanding head 17 and forming mold 20 are reset. The drive structure drives the rotating disk 27 to rotate, rotating the expanded shock absorber outer cylinder to the cooling position. The seventh cylinder 29 in the cooling structure operates, driving the water receiving cover 30 to move. One end of the water receiving cover 30 is provided with an annular sealing gasket, which will be tightly attached to the side wall formed by the expansion seat 21 and the pressing block 26 after pressing. The water spray ring 31 inside the water receiving cover 30 will be located outside the expanded pipe opening, and then water will be sprayed to cool the shock absorber outer cylinder. After cooling, the water receiving cover 30 will be reset, and the drive structure will drive the rotating disk 27 to rotate, rotating the cooled shock absorber outer cylinder to the drying position. The eighth cylinder in the drying structure... The operation of motor 33 causes the second mounting block 34 to move forward, allowing the hot air nozzle 41 to extend into the interior of the shock absorber's outer cylinder. The U-shaped block 40 on the rotating disk 39 is positioned on the inner and outer walls of the shock absorber's outer cylinder opening. The first drive motor 36 operates, driving the first drive gear 37 to rotate. Simultaneously, the first driven gear 38 rotates, causing the rotating disk 39 to rotate. This allows the absorbent cotton on the U-shaped block 40 to dry the opening of the shock absorber's outer cylinder, while the hot air from the hot air nozzle 41 dries the interior of the shock absorber's outer cylinder. Furthermore, hot air also comes out from the clamping block 26 and the expanding seat 21 to dry the outer wall of the shock absorber's outer cylinder, thus improving drying efficiency.

[0031] See Figure 1The reaming assembly includes a first connecting block 5 fixedly mounted on the top of the first support base 2, a first cylinder 6 fixedly mounted on one end of the first connecting block 5, the output end of the first cylinder 6 fixedly mounted between the cylinder and the L-shaped push base 7, a second connecting block 8 provided on the top of the L-shaped push base 7, a second cylinder 9 fixedly mounted on one end of the second connecting block 8, the output end of the second cylinder 9 fixedly mounted between the cylinder and the movable base 12, a fourth connecting block 15 fixedly mounted on the top of the movable base 12, a fourth cylinder 16 fixedly mounted on one end of the fourth connecting block 15, and the output end of the fourth cylinder 16 fixedly connected between the reaming head 17. The heating assembly includes a third connecting block 10 fixedly mounted on the top of the movable base 12, a third cylinder 11 fixedly mounted on one end of the third connecting block 10, the output end of the third cylinder 11 fixedly mounted between the cylinder and the first mounting block 13, and a heating ring 14 mounted on one end of the first mounting block 13. The forming assembly includes two fifth connecting blocks 18 mounted on one end of the L-shaped push base 7, and a heating ring 14 fixedly mounted on one end of each fifth connecting block 18. The fifth cylinder 19 is fixedly installed between its output end and the forming mold 20. One end of the forming mold 20 has an arc-shaped groove. The outer cylinder of the shock absorber is placed on the expansion seat 21. The sixth cylinder 25 in the lifting assembly works, driving the clamping block 26 to move downward. The clamping block 26 engages with the expansion seat 21 to limit and fix the outer cylinder of the shock absorber. The first cylinder 6 in the expansion structure works, driving the L-shaped pusher 7 to move forward to the appropriate position. The third cylinder 1 on the third connecting block 10... 1. When the heating ring 14 moves forward, it is positioned at the pipe opening of the outer cylinder of the shock absorber. The pipe opening is heated to a red-hot state. Then, the fifth cylinder 19 in the forming assembly is activated, causing the forming mold 20 to cover the pipe opening. The second cylinder 9 on the second connecting block 8 is activated, moving the moving seat 12 to move the expanding assembly to the appropriate position. The fourth cylinder 16 in the expanding assembly is activated, moving the expanding head 17 to expand the pipe opening.

[0032] See Figure 1 , Figure 2 and Figure 3The drive structure includes a second drive motor 42 fixedly mounted on the top of the tooling base 1. The output end of the second drive motor 42 is fixedly connected to a second driving gear 43. The second driving gear 43 is meshed with a second driven gear 44. The second driven gear 44 is fixedly mounted on a shaft 45. One end of the shaft 45 is rotatably mounted between the shaft 45 and the rotating disk 27, and the other end of the shaft 45 is rotatably mounted between the shaft 45 and the tooling base 1. A third mounting block 46 is provided at the bottom of the rotating disk 27. A ninth cylinder 47 is fixedly mounted at one end of the third mounting block 46. The output end of the nine-cylinder 47 is fixedly installed between the locking protrusion 48 and the output end of the nine-cylinder 47. The second drive motor 42 in the drive structure works, driving the second drive gear 43 to rotate. At the same time as the second drive gear 43 rotates, the second driven gear 44 rotates accordingly. After the second driven gear 44 rotates to the appropriate position, the ninth cylinder 47 works, driving the locking protrusion 48 to move. The locking protrusion 48 will then be inserted into the corresponding tooth groove on the second driven gear 44, and the rotating disk 27 will stop rotating. The locking protrusion 48 matches the tooth groove on the second driven gear 44.

[0033] See Figure 1 The lifting assembly includes an L-shaped seat 24 mounted on the top of the rotating disk 27. A sixth cylinder 25 is provided on the top of the L-shaped seat 24. The output end of the sixth cylinder 25 is fixedly connected to the clamping block 26. A screw hole opened at one end of the expansion seat 21 is adapted to be installed with the lead screw 22. One end of the lead screw 22 is installed with a bearing seat mounted on one end of the limit block 23 through a bearing. After rotating the lead screw 22, the corresponding limit block 23 can be moved. By adjusting the position of the limit block 23, the expansion work can be performed on the outer cylinder of the shock absorber of various sizes and lengths.

[0034] The implementation principle of the reaming fixture for processing the outer cylinder of a shock absorber according to an embodiment of the present invention is as follows: When reaming the port of the outer cylinder of the shock absorber, the outer cylinder is placed on the reaming seat 21. The sixth cylinder 25 in the lifting assembly operates, driving the clamping block 26 to move downward. The clamping block 26 engages with the reaming seat 21 to limit and fix the outer cylinder of the shock absorber. The first cylinder 6 in the reaming structure operates, driving the L-shaped pusher 7 forward to a suitable position. The third cylinder 11 on the third connecting block 10 operates, driving the heating ring 14 forward, so that the heating ring 14 is positioned at the port of the outer cylinder of the shock absorber. The pipe opening is heated to a red-hot state. Then, the fifth cylinder 19 in the forming assembly operates, causing the forming mold 20 to cover the pipe opening. The second cylinder 9 on the second connecting block 8 operates, moving the moving seat 12 to the appropriate position for the expanding assembly. The fourth cylinder 16 in the expanding assembly operates, moving the expanding head 17 to expand the pipe opening. After expanding, the expanding head 17 and the forming mold 20 reset. The drive structure rotates the rotating disk 27, moving the expanded shock absorber outer cylinder to the cooling position. The seventh cylinder 29 in the cooling structure then operates. The water receiving cover 30 is moved, and an annular sealing gasket is provided at one end of the water receiving cover 30. The sealing gasket will be tightly attached to the side wall formed by the expansion seat 21 and the pressing block 26 after they are pressed together. The water spray ring 31 inside the water receiving cover 30 will be located outside the pipe opening after the expansion. Then, water is sprayed to cool the outer cylinder of the shock absorber. After cooling, the water receiving cover 30 will be reset, and the drive structure will drive the rotating disk 27 to rotate, rotating the cooled outer cylinder of the shock absorber to the position of the drying structure. The eighth cylinder 33 in the drying structure will work, driving the second mounting block 34 to move forward, so that the hot air nozzle 41 extends into the shock absorber. Inside the outer cylinder of the shock absorber, and with the U-shaped block 40 on the rotating disk 39 placed on the inner and outer walls of the outer cylinder opening, the first drive motor 36 operates, driving the first drive gear 37 to rotate. As the first drive gear 37 rotates, the first driven gear 38 rotates, which in turn drives the rotating disk 39 to rotate. This allows the absorbent cotton on the U-shaped block 40 to dry the outer cylinder opening of the shock absorber. The hot air sprayed from the hot air nozzle 41 dries the inside of the outer cylinder of the shock absorber. In addition, the pressing block 26 and the expansion seat 21 also emit hot air to dry the outer wall of the outer cylinder of the shock absorber, thereby improving the drying efficiency.

[0035] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A hole-expanding fixture for machining the outer cylinder of a shock absorber, comprising a fixture base (1), wherein a first support base (2), a second support base (3), and a third support base (4) are fixedly mounted on the top of the fixture base (1), characterized in that: The top of the first support base (2) is equipped with a hole-expanding structure, in which a hole-expanding component, an electric heating component and a forming component are provided. The top of the second support base (3) is equipped with a cooling structure. The top of the third support base (4) is equipped with a drying structure. The top of the tooling base (1) is equipped with a driving structure, and the driving structure drives the rotating disk (27) to rotate. The rotating disk (27) is equipped with multiple hole-expanding seats (21). Each hole-expanding seat (21) is equipped with a lifting component, and the lifting component drives the pressing block (26) to move up and down. The hole-expanding seat (21) and the pressing block (26) are equipped with cavities for ventilation. The outer walls of the hole-expanding seat (21) and the pressing block (26) are provided with several air outlets that communicate with the cavities. The air inlet ports on the outer walls of the hole-expanding seat (21) and the pressing block (26) are connected to the corresponding hot air blower through hoses. The cooling structure includes a sixth connecting block (28) installed on the top of the second support base (3). A seventh cylinder (29) is fixedly installed on one side of the sixth connecting block (28). The output end of the seventh cylinder (29) is fixedly installed between the output end and the water receiving cover (30). One end of the water receiving cover (30) is open. An annular sealing gasket is provided at one end of the water receiving cover (30). A water spray ring (31) is provided inside the water receiving cover (30). The water inlet pipe at the top of the water spray ring (31) is connected to the water pipe through a hose. The water outlet at the bottom of the water receiving cover (30) is connected to the water storage tank through a hose. The drying structure includes a seventh connecting block (32) mounted on the top of the third support (4). An eighth cylinder (33) is fixedly mounted on one end of the seventh connecting block (32). The output end of the eighth cylinder (33) is fixedly mounted between the eighth cylinder (33) and the second mounting block (34). A hot air outlet pipe (35) is fixedly connected to the second mounting block (34). One end of the hot air outlet pipe (35) is connected to a hot air nozzle (41), and the other end of the hot air outlet pipe (35) is connected to a hot air blower via a hose. 5) A rotating assembly is installed on the rotating assembly, on which a first driven gear (38) and a rotating disk (39) are installed. A U-shaped block (40) is fixedly installed on the outer wall of the rotating disk (39), and water-absorbing cotton is provided on the inner wall of the U-shaped block (40). A first drive motor (36) is fixedly installed on the side wall of the second mounting block (34). The output end of the first drive motor (36) is fixedly installed between the first drive gear (37) and the first drive gear (37) meshing with the first driven gear (38). The hole enlarging assembly includes a first connecting block (5) fixedly installed on the top of the first support base (2), a first cylinder (6) fixedly installed at one end of the first connecting block (5), the output end of the first cylinder (6) fixedly installed between the first cylinder (6) and the L-shaped push base (7), a second connecting block (8) is provided on the top of the L-shaped push base (7), a second cylinder (9) is fixedly installed at one end of the second connecting block (8), the output end of the second cylinder (9) is fixedly installed between the second cylinder (9) and the movable base (12), a fourth connecting block (15) is fixedly installed on the top of the movable base (12), a fourth cylinder (16) is fixedly installed at one end of the fourth connecting block (15), and the output end of the fourth cylinder (16) is fixedly connected between the hole enlarging head (17).

2. The reaming fixture for machining the outer cylinder of a shock absorber according to claim 1, characterized in that: The electric heating assembly includes a third connecting block (10) fixedly installed on the top of the movable seat (12), a third cylinder (11) fixedly installed at one end of the third connecting block (10), the output end of the third cylinder (11) fixedly installed between the first mounting block (13), and an electric heating ring (14) installed at one end of the first mounting block (13).

3. The reaming fixture for machining the outer cylinder of a shock absorber according to claim 1, characterized in that: The molding assembly includes two fifth connecting blocks (18) installed at one end of an L-shaped pusher (7). A fifth cylinder (19) is fixedly installed at one end of the fifth connecting block (18). The output end of the fifth cylinder (19) is fixedly installed between the fifth cylinder (19) and the molding mold (20). An arc groove is provided at one end of the molding mold (20).

4. The reaming fixture for machining the outer cylinder of a shock absorber according to claim 1, characterized in that: The drive structure includes a second drive motor (42) fixedly mounted on the top of the tooling base (1). The output end of the second drive motor (42) is fixedly connected to a second driving gear (43). The second driving gear (43) is meshed with a second driven gear (44). The second driven gear (44) is fixedly mounted on a shaft (45). One end of the shaft (45) is rotatably mounted between the shaft (45) and the rotating disk (27), and the other end of the shaft (45) is rotatably mounted between the shaft (45) and the tooling base (1).

5. The reaming fixture for machining the outer cylinder of a shock absorber according to claim 4, characterized in that: The bottom of the rotating disk (27) is provided with a third mounting block (46), and a ninth cylinder (47) is fixedly mounted on one end of the third mounting block (46). The output end of the ninth cylinder (47) is fixedly mounted between the locking protrusion (48).

6. The reaming fixture for machining the outer cylinder of a shock absorber according to claim 1, characterized in that: The lifting assembly includes an L-shaped seat (24) mounted on the top of the rotating disk (27), and a sixth cylinder (25) is provided on the top of the L-shaped seat (24). The output end of the sixth cylinder (25) is fixedly connected to the clamping block (26).

7. The reaming fixture for machining the outer cylinder of a shock absorber according to claim 1, characterized in that: The screw hole at one end of the expansion seat (21) is adapted to be installed with the lead screw (22), and one end of the lead screw (22) is installed with the bearing seat at one end of the limit block (23) through the bearing.

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