Bushing trimming device

Abstract

The utility model discloses a lining trimming device, and particularly relates to the technical field of lining machining. The lining trimming device comprises a base, a support is fixed to the top of the base, two telescopic rods are fixed to the support and can be electric push rods, a trimming motor is fixed to the telescopic end of each telescopic rod, a trimming wheel is installed on an output shaft of each trimming motor, a conveying pipe is further fixed to the support, and the conveying pipe is fixed to the top of the base. A conveying pipe is arranged on the base, a clamping assembly is fixed to the bottom end of the conveying pipe and used for clamping and fixing a lining, a driving motor is further fixed to the base through a fixing base, a gear is installed on the driving motor, and the driving motor is used for driving the gear to rotate. The lining trimming device provided by the utility model is higher in efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bushing processing technology, and in particular to a bushing trimming device. Background Technology

[0002] Chassis bushings are core components of automotive suspension systems. In the manufacturing of chassis bushings (such as control arm bushings and subframe bushings) and control arm bushings, trimming is an unavoidable process. These bushings are typically made of rubber-metal composite structures, and their end faces must strictly guarantee geometric accuracy and coaxiality to meet the dynamic load-bearing requirements of high-load suspension systems.

[0003] However, existing trimming processes can only trim one end of the bushing at a time, and then the bushing is manually or mechanically flipped before trimming the other end. This is relatively inefficient.

[0004] Therefore, it is necessary to provide a bushing trimming device to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a bushing trimming device with higher efficiency.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A bushing trimming device includes: a base, a bracket fixed to the top of the base, two telescopic rods fixed to the bracket, the telescopic rods being electric push rods, a trimming motor fixed to the telescopic end of the telescopic rods, a trimming wheel mounted on the output shaft of the trimming motor, a conveying pipe fixed to the bracket, a clamping assembly fixed to the bottom end of the conveying pipe, the clamping assembly being used to clamp and fix the bushing, and a drive motor fixed to the base via a fixing seat, the drive motor having a gear mounted on it, the drive motor being used to drive the gear to rotate.

[0008] Preferably, the clamping assembly includes an annular block, on which a gear ring is fixedly sleeved, meshing with the gear. Two arc-shaped grooves are symmetrically formed on the inner ring of the annular block, and arc-shaped clamping blocks are slidably installed inside each of the two arc-shaped grooves. Two air grooves are also formed on the annular block, and piston plates are slidably and sealed inside each air groove. A push rod is fixedly installed on one side of the piston plate, and the two push rods are respectively fixed to corresponding arc-shaped clamping blocks. An annular cavity is rotatably and sealed on the outer ring of the annular block, and the annular cavity is fixedly connected to the conveying pipe. A connecting hole is also formed on the annular block, and the annular cavity communicates with the air grooves through the connecting hole. An air pump is also installed on the support, and the conveying pipe is connected to the air pump.

[0009] Preferably, a spring is fixedly installed inside the air groove, the bottom end of the spring is fixed to the piston plate, an exhaust pipe is fixedly installed on one side of the delivery pipe, and a solenoid valve is installed on the exhaust pipe.

[0010] Preferably, a positioning cylinder is fixedly installed on one side of the fixed base, and a positioning plate is fixedly installed on the output shaft of the positioning cylinder.

[0011] Preferably, the base is an annular structure with a conical groove fixed on its inner ring.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) The clamping assembly of this utility model can rotate and cooperate with two liftable trimming motors and trimming wheels to achieve trimming while the bushing rotates, thereby achieving one-time trimming at both ends. Compared with the traditional manual or robotic arm bushing flipping, this device is more efficient.

[0014] (2) In this utility model, there are two symmetrical arc grooves, arc clamping blocks, air grooves, piston plates and push rods. High pressure gas acts on the two piston plates at the same time to ensure that the two arc clamping blocks move towards the center synchronously and symmetrically, clamping the bushing evenly and reliably, and avoiding skewing. The arc clamping blocks slide in the arc grooves. Combined with pneumatic drive, the clamping structure can adapt to bushings of different diameters within a certain size range.

[0015] (3) In this utility model, the positioning cylinder and the positioning plate work together to achieve precise positioning of the bushing, which is beneficial to subsequent trimming.

[0016] (4) In the process of trimming the bushing, the tapered groove is more conducive to collecting impurities. Attached Figure Description

[0017] Figure 1 A schematic diagram of the bushing trimming device provided by this utility model;

[0018] Figure 2 A schematic diagram of the bushing trimming device provided by this utility model;

[0019] Figure 3 for Figure 1 A partial structural schematic diagram of the bushing trimming device is shown.

[0020] Figure 4 This is a cross-sectional view of the clamping assembly.

[0021] Figure 5 for Figure 4 Enlarged view of part A in the middle.

[0022] The corresponding names of the reference numerals in the attached drawings are as follows: 1. Base; 2. Bracket; 3. Telescopic rod; 4. Trimming motor; 5. Trimming wheel; 6. Conveying pipe; 7. Clamping assembly; 8. Drive motor; 9. Gear; 10. Gear ring; 11. Annular block; 12. Arc groove; 13. Arc clamping block; 14. Air groove; 15. Piston plate; 16. Push rod; 17. Annular cavity; 18. Connecting hole; 19. Air pump; 20. Spring; 21. Exhaust pipe; 22. Conical groove; 23. Positioning cylinder; 24. Positioning plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0024] Example 1

[0025] like Figure 1-5 As shown, the bushing trimming device provided by this utility model includes: a base 1, a bracket 2 fixed to the top of the base 1, two telescopic rods 3 fixed on the bracket 2, the telescopic rods 3 being electric push rods, a trimming motor 4 fixed to the telescopic end of the telescopic rods 3, and a trimming wheel 5 mounted on the output shaft of the trimming motor 4. The telescopic rods 3 can drive the trimming motor 4 to move up and down, and the trimming motor 4 can drive the trimming wheel 5 to rotate, thereby trimming the bushing. A conveying pipe 6 is also fixed on the bracket 2, and a clamping assembly 7 is fixed to the bottom end of the conveying pipe 6. The clamping assembly 7 is used to clamp and fix the bushing. A drive motor 8 is also fixed on the base 1 through a fixed seat, and a gear 9 is mounted on the drive motor 8. The drive motor 8 is used to drive the gear 9 to rotate, and the gear 9 can drive the clamping assembly 7 to rotate, thereby rotating the bushing. The rotating bushing, in conjunction with the two trimming wheels 5, achieves one-time trimming of both ends. Compared with the traditional manual or robotic bushing flipping, this device is more efficient.

[0026] Example 2

[0027] like Figure 4-5As shown, the clamping assembly 7 includes an annular block 11, on which a gear ring 10 is fixedly sleeved. The gear ring 10 meshes with the gear 9. Two arc-shaped grooves 12 are symmetrically formed on the inner ring of the annular block 11. Arc-shaped clamping blocks 13 are slidably installed inside each of the two arc-shaped grooves 12. Two air grooves 14 are also formed on the annular block 11. Piston plates 15 are slidably and sealed inside the air grooves 14. Push rods 16 are fixedly installed on one side of the piston plates 15. The two push rods 16 are respectively fixed to the corresponding arc-shaped clamping blocks 13. An annular cavity 17 is rotatably and sealed on the outer ring of the annular block 11. The annular cavity 17 is connected to the conveying pipe 6. The ring block 11 is fixedly connected, and a connecting hole 18 is provided on the ring block 11. The ring cavity 17 and the air groove 14 are connected through the connecting hole 18. An air pump 19 is also installed on the bracket 2, and the delivery pipe 6 is connected to the air pump 19. In use, when it is necessary to clamp the bushing, the bushing is first inserted into the appropriate position of the ring block 11, and then the air pump 19 is started so that high-pressure gas enters the ring cavity 17 through the delivery pipe 6. The high-pressure gas in the ring cavity 17 then enters the air groove 14 through the connecting hole 18. When the pressure in the air groove 14 gradually increases, the high-pressure gas pushes the piston plate 15 to move. The piston plate 15 moves downward through the push rod 16, thereby clamping the bushing.

[0028] In this embodiment, there are two symmetrical arc-shaped grooves, arc-shaped clamping blocks, air grooves, piston plates, and push rods. High-pressure gas acts on the two piston plates simultaneously, ensuring that the two arc-shaped clamping blocks move towards the center synchronously and symmetrically, clamping the bushing evenly and reliably, and avoiding skewing. The arc-shaped clamping blocks slide in the arc-shaped grooves, and combined with pneumatic drive, this clamping structure can adapt to bushings of different diameters within a certain size range.

[0029] Furthermore, a spring 20 is fixedly installed inside the air groove 14, and the bottom end of the spring 20 is fixed to the piston plate 15. An exhaust pipe 21 is fixedly installed on one side of the delivery pipe 6, and a solenoid valve is installed on the exhaust pipe 21. When the bushing is polished, the solenoid valve opens, so that the exhaust pipe 21 is in the exhaust state, and the high-pressure gas in the annular cavity 17 and the air groove 14 is discharged, causing the stretched spring 20 to retract, thereby driving the piston plate 15 and the push rod 16 to move back, and then driving the arc-shaped clamping block 13 to completely enter the arc-shaped groove 12, losing its clamping effect on the bushing.

[0030] This embodiment utilizes a solenoid valve and an exhaust pipe to exhaust air, thereby causing the spring to retract, pulling the arc-shaped clamp back to its original position, and releasing the bushing from its fixation.

[0031] Example 3

[0032] like Figure 2As shown, a positioning cylinder 23 is fixedly installed on one side of the fixed base. A positioning plate 24 is fixedly installed on the output shaft of the positioning cylinder 23. When installing the bushing, it needs to be positioned to accommodate the positions of the two trimming wheels. Specifically, during installation, the positioning cylinder 23 is first activated to fully extend it. Then, the bushing is inserted into the annular block 11, with one end of the bushing contacting the positioning plate 24. After the bushing is fully fixed by the clamping assembly, the positioning cylinder 23 is activated in the reverse direction to retract it to its original position. In this embodiment, the positioning cylinder 23 and the positioning plate 24 cooperate to achieve precise positioning of the bushing, which facilitates subsequent trimming.

[0033] Example 4

[0034] like Figure 1 As shown, the base 1 is a ring structure with a conical groove 22 fixed on its inner ring. During the trimming process of the bushing, impurities will fall into the conical groove 22, which is beneficial for collecting impurities.

[0035] Working principle: In use, the positioning cylinder 23 first pushes the positioning plate 24 to extend, inserting the bushing to be processed into the annular block 11 and pressing against the positioning plate 24 to achieve precise positioning; then the air pump 19 is started to allow high-pressure gas to enter the annular cavity 7 and air groove 14 through the delivery pipe 6, pushing the piston plate 15 to drive the arc-shaped clamping block 13 to move synchronously towards the center to clamp the bushing, while stretching the spring 20 to store elastic potential energy; after positioning is completed, the positioning cylinder 23 retracts, and the drive motor 8 drives the clamping assembly and bushing to rotate at a constant speed through the meshing of the gear 9 and gear ring 10; at this time, the two telescopic rods 3 drive the trimming motor 4 to move down, so that the high-speed rotating trimming wheel 5 contacts both ends of the bushing, achieving synchronous trimming at both ends during the rotation of the bushing; after processing is completed, the solenoid valve 21 opens to exhaust air, the spring 20 resets and pulls the arc-shaped clamping block 13 to release the bushing, and the debris generated by trimming falls into the conical groove of the base for collection, completing the entire trimming process.

Claims

1. A bushing trimming device, characterized in that, include: A base (1) is provided, and a bracket (2) is fixed on the top of the base (1). Two telescopic rods (3) are fixed on the bracket (2). The telescopic rods (3) can be electric push rods (16). A trimming motor (4) is fixed on the telescopic end of the telescopic rod (3). A trimming wheel (5) is installed on the output shaft of the trimming motor (4). A conveying pipe (6) is also fixed on the bracket (2). A clamping assembly (7) is fixed at the bottom end of the conveying pipe (6). The clamping assembly (7) is used to clamp and fix the bushing. A drive motor (8) is also fixed on the base (1) through a fixed seat. A gear (9) is installed on the drive motor (8). The drive motor (8) is used to drive the gear (9) to rotate.

2. The bushing trimming device according to claim 1, characterized in that, The clamping assembly (7) includes an annular block (11), on which a gear ring (10) is fixedly sleeved. The gear ring (10) meshes with the gear (9). Two arc-shaped grooves (12) are symmetrically opened on the inner ring of the annular block (11). Arc-shaped clamping blocks (13) are slidably installed inside each of the two arc-shaped grooves (12). Two air grooves (14) are also opened on the annular block (11). A piston plate (15) is slidably and sealed inside the air grooves (14). One side of the piston plate (15) is fixedly installed. The device is equipped with push rods (16), and the two push rods (16) are respectively fixed to the corresponding arc-shaped clamps (13). The outer ring of the annular block (11) is rotatably sealed with an annular cavity (17). The annular cavity (17) is fixedly connected to the conveying pipe (6). The annular block (11) is also provided with a connecting hole (18). The annular cavity (17) is connected to the air groove (14) through the connecting hole (18). The bracket (2) is also equipped with an air pump (19). The conveying pipe (6) is connected to the air pump (19).

3. The bushing trimming device according to claim 2, characterized in that, A spring (20) is fixedly installed inside the air groove (14). The bottom end of the spring (20) is fixed to the piston plate (15). An exhaust pipe (21) is fixedly installed on one side of the delivery pipe (6). A solenoid valve is installed on the exhaust pipe (21).

4. The bushing trimming device according to claim 1, characterized in that, A positioning cylinder (23) is fixedly installed on one side of the fixed base. A positioning plate (24) is fixedly installed on the output shaft of the positioning cylinder (23).

5. A bushing trimming device according to claim 1, characterized in that, The base (1) is a ring structure with a conical groove (22) fixed on its inner ring.

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