A servo inflation riveting machine for assembling automobile shock absorber

Abstract

The utility model provides a kind of for automobile shock absorber assembly servo inflation riveting machine, comprising: rack, lifting mechanism, riveting subassembly, positioning assembly and cavity piece;Riveting subassembly is driven by lifting mechanism;Riveting subassembly includes journal, riveting head installed in the lower end of journal and the first power mechanism of driving journal rotation;Positioning assembly includes support base, first locating block and second locating block and second power mechanism;Cavity piece includes first cavity and second cavity, first cavity is installed on first locating block, second cavity is installed on second locating block and is opposite to first cavity, and inflation nozzle is equipped on first cavity or second cavity, and first cavity and second cavity can form sealed cavity between when contact between them.The utility model combines riveting and inflation process organically, avoids product scrappage risk caused by inflation operation, eliminates the problem that pressure leaks due to tool pulling out, significantly improves product quality and production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to riveting technical field, concretely relates to a kind of for automobile shock absorber assembly servo inflation riveting machine. BACKGROUND

[0002] In the automobile chassis system, shock absorber as key component, its performance directly influences driving comfort and safety. The sealing process of shock absorber usually adopts extrusion or riveting, wherein the riveting sealing effect is best. In the riveting process, riveting head is rotated and pressed under the driving of driving part, and pressure is applied to the edge of shock absorber cylinder until the predetermined size is reached, and then inflation process is needed. When inflating, special tool is needed to pick up oil seal and insert needle, and the operation is difficult, and the oil seal is easily damaged during the inflation process, resulting in product scrap. In addition, the inflation tool is easily pulled out, which causes pressure leakage and loss of internal gas of shock absorber, affecting product quality. SUMMARY

[0003] In order to solve the technical problems existing in the background art, the utility model provides a kind of for automobile shock absorber assembly servo inflation riveting machine.

[0004] The utility model provides a kind of for automobile shock absorber assembly servo inflation riveting machine, including: rack, lifting mechanism, riveting assembly, positioning assembly and cavity piece, wherein:

[0005] The lifting mechanism is installed on the rack, the riveting assembly is connected with the lifting mechanism and is driven to move up and down by the lifting mechanism; the riveting assembly includes a vertical shaft journal, a riveting head installed at the lower end of the shaft journal, and a first power mechanism for driving the shaft journal to rotate;

[0006] The positioning assembly is located below the riveting head and is installed on the rack, and the positioning assembly includes a support base, a first positioning block and a second positioning block located above the support base and arranged oppositely, and a second power mechanism for driving the first positioning block and the second positioning block to move closer to or away from each other;

[0007] The cavity piece includes a first cavity and a second cavity, the first cavity is installed on the first positioning block, the second cavity is installed on the second positioning block and opposite to the first cavity, an inflation nozzle is provided on the first cavity or the second cavity, and a sealed cavity can be formed between the first cavity and the second cavity when the first cavity and the second cavity are in contact, an upper opening and a lower opening of the sealed cavity are formed at the contact surface of the first cavity and the second cavity; the upper opening is located at the top end of the sealed cavity, and the diameter of the upper opening is matched with the shaft journal; the lower opening is located at the bottom end of the sealed cavity, and the diameter of the lower opening is matched with the cylinder of the shock absorber.

[0008] Preferably, the end face of the first cavity and the second cavity is provided with a sealing ring.

[0009] Preferably, the lifting mechanism comprises a plurality of guide rods distributed on the periphery of the positioning assembly and vertically fixed on the rack, a movable seat located above the positioning assembly and slidably assembled with the guide rods, a fixed seat located above the movable seat and fixedly assembled with the guide rods, and a power component fixedly installed on the fixed seat and connected with the movable seat to drive the movable seat to move on the guide rods.

[0010] Preferably, the power component is an electric cylinder.

[0011] Preferably, the shaft journal is rotationally connected with the movable seat, and the first power mechanism is installed on the movable seat and drivingly connected with the shaft journal.

[0012] Preferably, the first driving mechanism comprises a driving motor fixedly installed on the movable seat, a driving gear installed on the driving motor and driven by the driving motor, and a driven gear installed on the shaft journal and meshed with the driving gear.

[0013] Preferably, a pressure sensor for monitoring the spin riveting pressure is further included.

[0014] The utility model discloses a cavity piece is set, when the shock absorber is assembled, the first cavity and the second cavity in the cavity piece cooperate and cover the sealed cavity of the to be sealed end of shock absorber, and the sealed cavity is inflated by the inflation nozzle, so that the gas is filled into the shock absorber, to realize the lossless inflation. After the inflation is finished and keeps pressure for a certain time, the spin riveting assembly acts to complete the spin riveting sealing of the to be sealed end. The structure design of the utility model organically combines spin riveting and inflation process, which can not only avoid the product scrapping risk caused by inflation operation, but also eliminate the problem of pressure leakage caused by tool pulling out, thereby significantly improving product quality and production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 A perspective view of a servo inflation spin riveting machine for automobile shock absorber assembly is provided for the utility model;

[0016] Fig. 2 A front view of a servo inflation spin riveting machine for automobile shock absorber assembly is provided for the utility model;

[0017] Fig. 3 A partial enlarged view of a servo inflation spin riveting machine for automobile shock absorber assembly is provided for the utility model. DETAILED DESCRIPTION

[0018] REFERENCE Figs. 1-3 The utility model provides a kind of servo inflation spin riveting machine for automobile shock absorber assembly, including: rack 1, lifting mechanism 2, spin riveting assembly 3, positioning assembly 4, and cavity piece 5, wherein:

[0019] The lifting mechanism 2 is installed on the rack 1, the spin riveting assembly 3 is connected with the lifting mechanism 2 and is driven by the lifting mechanism 2 to move up and down, the spin riveting assembly 3 comprises a vertical shaft neck 31, a spin riveting head 32 installed at the lower end of the shaft neck 31 and a first power mechanism 33 for driving the shaft neck to rotate to drive the spin riveting head 32 to rotate, the positioning assembly 4 is located below the spin riveting head 32 and is installed on the rack 1, the positioning assembly 4 comprises a supporting base 41, a first positioning block 42 and a second positioning block 43 oppositely arranged above the supporting base 41 and a second power mechanism for driving the first positioning block 42 and the second positioning block 43 to move close to or away from each other, the cavity part 5 comprises a first cavity 51 and a second cavity 52, the first cavity 51 is installed on the first positioning block 42, the second cavity 52 is installed on the second positioning block 43 and is opposite to the first cavity 51, the first cavity 51 or the second cavity 52 is provided with the inflation nozzle 6, and when the first cavity 51 and the second cavity 52 are in contact, a sealed cavity can be formed between the first cavity 51 and the second cavity 52, the upper through hole and the lower through hole communicating with the sealed cavity are formed at the contact surface of the first cavity 51 and the second cavity 52, the upper through hole is located at the top end of the sealed cavity, the diameter of the upper through hole is matched with the shaft neck 31, and the shaft neck 31 is accommodated in the upper through hole, the lower through hole is located at the bottom end of the sealed cavity, and the diameter of the lower through hole is matched with the cylinder of the shock absorber, so that the shock absorber is accommodated in the lower through hole.

[0020] In work, the shock absorber is placed on the supporting base 41 in advance, and the end to be sealed of the shock absorber faces upwards, then the spin riveting assembly 3 is driven by the lifting mechanism 2 to move downwards to the position that the spin riveting head 32 is between the first cavity 51 and the second cavity 52 and close to the shock absorber, then the first positioning block 42 and the second positioning block 43 are driven by the first driving mechanism in the positioning assembly 4 to move close to each other to clamp the cylinder of the shock absorber, and the first cavity 51 and the second cavity 52 are combined at the same time, at this time, the end to be sealed of the shock absorber and the riveting head are located in the sealed cavity inside the first cavity 51 and the second cavity 52, and the whole shock absorber is not sealed, then the sealed cavity is inflated through the inflation nozzle 6, at this time, the gas in the sealed cavity is filled into the cylinder of the shock absorber through the unsealed port of the shock absorber, after inflation is completed and pressure is maintained for a certain time, the spin riveting assembly 3 is driven by the lifting mechanism 2 to move downwards to the spin riveting position, so that the oil seal is pressed into the cylinder of the shock absorber and spin riveting work is performed, so that the spin riveting sealing work is completed.

[0021] In further embodiments, the end surface of the first cavity 51 and the second cavity 52 close to each other is provided with a sealing ring 7, so as to increase the sealing effect of the sealed cavity.

[0022] In addition, the spin riveting machine for assembling the automobile shock absorber further comprises a pressure sensor 8 for monitoring the spin riveting pressure, the spin riveting pressure is monitored by the pressure sensor 8 during spin riveting work, and the system automatically adjusts the spin riveting descending speed and the spin riveting head 32 rotating speed according to the pressure monitored by the pressure sensor 8 during spin riveting work, so as to guarantee the spin riveting quality.

[0023] The lifting mechanism 2 in the embodiment comprises a plurality of guide rods 21 distributed on the periphery of the positioning assembly 4 and vertically fixed on the rack 1, a movable seat 22 located above the positioning assembly 4 and slidably assembled with each guide rod 21, a fixed seat 23 located above the movable seat 22 and fixedly assembled with each guide rod 21, and a power component 24 fixedly installed on the fixed seat 23 and connected with the movable seat 22 to drive the movable seat 22 to move on the guide rod 21, the power component 24 being an electric cylinder. The shaft journal 31 in the spin riveting assembly 3 is rotationally connected with the movable seat 22, and the first driving mechanism in the spin riveting assembly 3 comprises a driving motor fixedly installed on the movable seat 22, a driving gear installed on the driving motor to be driven by the driving motor, and a driven gear installed on the shaft journal 31 and meshed with the driving gear.

[0024] As can be seen from the above, the spin riveting and the inflation process are organically combined, the product scrapping risk caused by the inflation operation can be avoided, the problem of pressure leakage caused by the tool pulling out can be eliminated, and therefore the product quality and the production efficiency are significantly improved.

[0025] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A servo-operated pneumatic riveting machine for assembling automotive shock absorbers, characterized in that, include: The frame (1), lifting mechanism (2), riveting assembly (3), positioning assembly (4), and cavity component (5) are as follows: The lifting mechanism (2) is installed on the frame (1), and the riveting assembly (3) is connected to the lifting mechanism (2) and driven by the lifting mechanism (2) to move up and down. The riveting assembly (3) includes a vertically arranged journal (31), a riveting head (32) installed at the lower end of the journal (31), and a first power mechanism (33) that drives the journal (31) to rotate. The positioning component (4) is located below the riveting head (32) and mounted on the frame (1). The positioning component (4) includes a support base (41), a first positioning block (42) and a second positioning block (43) located above the support base (41) and arranged opposite to each other, and a second power mechanism for driving the first positioning block (42) and the second positioning block (43) to move closer or further apart from each other. The cavity component (5) includes a first cavity (51) and a second cavity (52). The first cavity (51) is mounted on the first positioning block (42), and the second cavity (52) is mounted on the second positioning block (43) and is opposite to the first cavity (51). An air inlet (6) is provided on the first cavity (51) or the second cavity (52), and a sealed cavity can be formed between the first cavity (51) and the second cavity (52) when they are in contact. An upper opening and a lower opening are formed at the contact surface between the first cavity (51) and the second cavity (52) to connect the sealed cavity. The upper opening is located at the top of the sealed cavity, and the diameter of the upper opening is adapted to the journal (31). The lower opening is located at the bottom of the sealed cavity, and the diameter of the lower opening is adapted to the cylinder of the shock absorber.

2. The servo-operated pneumatic riveting machine for assembling automotive shock absorbers according to claim 1, characterized in that, Both the first cavity (51) and the second cavity (52) have sealing rings (7) at their close ends.

3. The servo-operated pneumatic riveting machine for assembling automotive shock absorbers according to claim 1, characterized in that, The lifting mechanism (2) includes multiple guide rods (21) distributed around the periphery of the positioning component (4) and vertically fixed on the frame (1), a movable seat (22) located above the positioning component (4) and slidably assembled with each guide rod (21), a fixed seat (23) located above the movable seat (22) and fixedly assembled with each guide rod (21), and a power component (24) fixedly installed on the fixed seat (23) and connected to the movable seat (22) to drive the movable seat (22) to move on the guide rods (21).

4. The servo-operated pneumatic riveting machine for assembling automotive shock absorbers according to claim 3, characterized in that, The power unit (24) is an electric cylinder.

5. The servo-operated pneumatic riveting machine for assembling automotive shock absorbers according to claim 3, characterized in that, The journal (31) is rotatably connected to the movable seat (22), and the first power mechanism (33) is mounted on the movable seat (22) and is connected to the journal (31) for transmission.

6. The servo-operated pneumatic riveting machine for assembling automotive shock absorbers according to claim 5, characterized in that, The first drive mechanism includes a drive motor fixedly mounted on a movable seat (22), a drive gear mounted on the drive motor to be driven by the drive motor, and a driven gear mounted on a journal (31) and meshing with the drive gear.

7. The servo-operated pneumatic riveting machine for assembling automotive shock absorbers according to any one of claims 1-6, characterized in that, It also includes a pressure sensor (8) for monitoring riveting pressure.

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