Pressing and rear axle supporting device for combined assembly of chassis

Abstract

The utility model discloses a pressing and rear axle supporting device for combined assembly of a chassis. The pressing and rear axle supporting device comprises a track; the vehicle pressing mechanism is arranged on the track and can walk along the track; the car pressing hook is arranged on the car pressing mechanism and can be driven by the car pressing mechanism to press a car; the rear axle supporting mechanism is arranged on the track and can walk along the track; the rear axle supporting block is arranged on the rear axle supporting mechanism and can be driven by the rear axle supporting mechanism to be used for supporting the rear axle. The vehicle pressing mechanism drives the vehicle pressing hook to be inserted into the vehicle body rear end hole so as to achieve vehicle pressing, the rear axle supporting mechanism drives the rear axle supporting block to jack up the rear axle brake disc and achieve supporting, the rear axle is kept to be supported and does not move or shake, and the problems that in the chassis assembling process, assembling is difficult, and assembling precision is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle assembly tools, in particular to a press vehicle and a rear axle support device for assembling a chassis. Background Art

[0002] At present, in the assembly process of the chassis, when the rear axle is configured as a torsion beam, the assembly process of the body and the chassis will be affected by the force of the spring at one end pressing the rear axle and the other end pushing up the body. The body being pushed up will cause the body to be separated from the chassis hoist, which not only makes it impossible to correctly assemble the rear axle, but also poses the safety risk of the car being lifted up and unable to be assembled, or even falling off the production line. At the same time, the rear axle spring forces the rear axle support and the rear axle tooling, resulting in the problem of the positioning pin blocking the hole, causing the positioning pin to bend, the rear axle positioning to be inaccurate, and affecting the installation accuracy of the rear axle. There is also the problem that the assembly and separation station cannot normally separate the rear axle tray from the rear axle due to the latch pin. At present, the existing technology generally uses a chain to pull the body from behind to solve the problem of the rear axle pushing the body, but the chain pulling the body from behind will have the problem of easy shaking, height uncertainty and asynchronism, making assembly difficult. The problem of the latch pin blocking the rear axle and the tray is usually solved by enlarging the gap, but it affects the assembly accuracy of the rear axle. Utility Model Content

[0003] In view of the above shortcomings, the utility model provides a chassis assembly press and rear axle support device, which can solve the problems of assembly difficulty and poor assembly precision in the chassis assembly process.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A chassis assembly press and rear axle support device, comprising:

[0006] track;

[0007] A car pressing mechanism, which is arranged on the track and can move along the track;

[0008] A car pressing hook, which is arranged on the car pressing mechanism and can be driven by the car pressing mechanism to press the car;

[0009] A rear axle support mechanism, which is arranged on the track and can travel along the track;

[0010] The rear axle support block is arranged on the rear axle support mechanism and can be driven by the rear axle support mechanism for rear axle support.

[0011] Furthermore, a first car pressing electric cylinder and a first supporting electric cylinder are fixedly arranged on the track;

[0012] The end of the output shaft of the first car pressing electric cylinder is connected to the car pressing mechanism to drive the car pressing mechanism to move along the track;

[0013] The end of the output shaft of the first supporting electric cylinder is connected to the rear axle supporting mechanism to drive the rear axle supporting mechanism to move along the track.

[0014] Further, a plurality of first position sensors are arranged on the track along the extension direction of the track;

[0015] The vehicle pressing mechanism and the rear axle supporting mechanism are respectively provided with a first sensing sheet for interacting with the first position sensor;

[0016] It also includes a PLC controller, which is electrically connected to the first car pressing electric cylinder, the first supporting electric cylinder and the first position sensor. The first position sensor detects the positions of the car pressing mechanism and the rear axle supporting mechanism on the track and sends a signal to the PLC controller. The PLC controller obtains the position signal and can control the first car pressing electric cylinder and the first supporting electric cylinder according to the signal to control the moving speed of the car pressing mechanism and the rear axle supporting mechanism.

[0017] Furthermore, a plurality of first stop blocks are arranged on the track along the extension direction of the track, and the vehicle pressing mechanism and the rear axle support mechanism are respectively provided with second stop blocks, so as to limit the extreme position of the vehicle pressing mechanism and the rear axle support mechanism walking along the track through the contact between the second stop blocks and the first stop blocks.

[0018] Furthermore, the vehicle pressing mechanism comprises:

[0019] A car pressing mechanism base, which is slidably arranged on the track;

[0020] A vertical rail of a car pressing mechanism, which is vertically fixed on the base of the car pressing mechanism;

[0021] A vertical moving member of the car pressing mechanism, which is slidably arranged on the vertical rail of the car pressing mechanism;

[0022] A second pressing electric cylinder is fixedly arranged on the pressing mechanism base, and an end of an output shaft of the second pressing electric cylinder is connected to the vertical moving part of the pressing mechanism to drive the vertical moving part of the pressing mechanism to move along the vertical rail of the pressing mechanism;

[0023] A cross rail of the car pressing mechanism, which is transversely fixed on the vertical moving part of the car pressing mechanism;

[0024] A transverse moving member of the car pressing mechanism, which is slidably arranged on the transverse rail of the car pressing mechanism;

[0025] A third car pressing electric cylinder is fixedly arranged on the vertical moving part of the car pressing mechanism, and the end of the output shaft of the third car pressing electric cylinder is connected to the horizontal moving part of the car pressing mechanism to drive the horizontal moving part of the car pressing mechanism to move along the horizontal rail of the car pressing mechanism;

[0026] The car pressing hook is fixedly arranged on the transverse moving part of the car pressing mechanism.

[0027] Furthermore, two third stop blocks are arranged on the vertical rail of the press mechanism along the extension direction of the vertical rail of the press mechanism, and a fourth stop block is arranged on the vertical moving member of the press mechanism, so as to limit the extreme position of the vertical moving member of the press mechanism moving along the vertical rail of the press mechanism through the contact between the fourth stop block and the third stop block;

[0028] Two fifth stop blocks are arranged on the cross rail of the press mechanism along the extension direction of the cross rail of the press mechanism, and the transverse moving part of the press mechanism is provided with a sixth stop block to limit the extreme position of the transverse moving part of the press mechanism along the cross rail of the press mechanism through the contact between the sixth stop block and the fifth stop block.

[0029] Furthermore, a plurality of second position sensors are arranged on the vertical rail of the vehicle pressing mechanism along the extending direction of the vertical rail of the vehicle pressing mechanism;

[0030] The vertical moving part of the car pressing mechanism is provided with a second sensing sheet for interacting with the second position sensor;

[0031] A plurality of third position sensors are arranged on the cross rail of the vehicle pressing mechanism along the extension direction of the cross rail of the vehicle pressing mechanism;

[0032] The lateral moving member of the car pressing mechanism is provided with a third sensing sheet for interacting with the third position sensor;

[0033] It also includes a PLC controller, which is electrically connected to the second pressing electric cylinder, the third pressing electric cylinder, the second position sensor and the third position sensor. The second position sensor detects the position of the vertical moving part of the pressing mechanism on the vertical rail of the pressing mechanism and sends a signal to the PLC controller. The third position sensor detects the position of the horizontal moving part of the pressing mechanism on the horizontal rail of the pressing mechanism and sends a signal to the PLC controller. The PLC controller obtains the position signal and can control the second pressing electric cylinder and the third pressing electric cylinder according to the signal to control the moving speed of the vertical moving part and the horizontal moving part of the pressing mechanism.

[0034] Furthermore, the rear axle support mechanism comprises:

[0035] A rear axle support mechanism base, which is slidably disposed on the track;

[0036] A rear axle support mechanism vertical rail, which is vertically fixed on the rear axle support mechanism base;

[0037] A vertical moving member of the rear axle support mechanism, which is slidably disposed on the vertical rail of the rear axle support mechanism;

[0038] A second supporting electric cylinder, which is fixedly arranged on the rear axle supporting mechanism base, and the end of the output shaft of the second supporting electric cylinder is connected to the vertical moving member of the rear axle supporting mechanism to drive the vertical moving member of the rear axle supporting mechanism to move along the vertical rail of the rear axle supporting mechanism;

[0039] A rear axle support mechanism cross rail, which is transversely fixed to the vertical moving member of the rear axle support mechanism;

[0040] A rear axle support mechanism transverse moving member, which is slidably disposed on the rear axle support mechanism transverse rail;

[0041] A third supporting electric cylinder, which is fixedly arranged on the vertical moving member of the rear axle supporting mechanism, and the end of the output shaft of the third supporting electric cylinder is connected to the lateral moving member of the rear axle supporting mechanism to drive the lateral moving member of the rear axle supporting mechanism to move along the transverse rail of the rear axle supporting mechanism;

[0042] The rear axle support block is fixedly arranged on the transverse moving member of the rear axle support mechanism.

[0043] Further, two seventh stop blocks are arranged on the vertical rail of the rear axle support mechanism along the extension direction of the vertical rail of the rear axle support mechanism, and the vertical moving member of the rear axle support mechanism is provided with an eighth stop block, so as to limit the extreme position of the vertical moving member of the rear axle support mechanism moving along the vertical rail of the rear axle support mechanism through the contact between the eighth stop block and the seventh stop block;

[0044] Two ninth stop blocks are arranged on the cross rail of the rear axle support mechanism along the extension direction of the cross rail of the rear axle support mechanism, and the transverse moving member of the rear axle support mechanism is provided with a tenth stop block to limit the extreme position of the transverse moving member of the rear axle support mechanism along the cross rail of the rear axle support mechanism through the contact between the tenth stop block and the ninth stop block.

[0045] Further, a plurality of fourth position sensors are arranged on the vertical rail of the rear axle support mechanism along the extension direction of the vertical rail of the rear axle support mechanism;

[0046] A fourth sensing sheet for interacting with the fourth position sensor is provided on the vertical moving member of the rear axle support mechanism;

[0047] A plurality of fifth position sensors are arranged on the rear axle support mechanism cross rail along the extension direction of the rear axle support mechanism cross rail;

[0048] The rear axle support mechanism transverse moving member is provided with a fifth sensing sheet for interacting with the fifth position sensor;

[0049] It also includes a PLC controller, which is electrically connected to the second supporting electric cylinder, the third supporting electric cylinder, the fourth position sensor and the fifth position sensor. The fourth position sensor detects the position of the vertical moving part of the rear axle support mechanism on the vertical rail of the rear axle support mechanism and sends a signal to the PLC controller. The fifth position sensor detects the position of the transverse moving part of the rear axle support mechanism on the transverse rail of the rear axle support mechanism and sends a signal to the PLC controller. The PLC controller obtains the position signal and can control the second supporting electric cylinder and the third supporting electric cylinder according to the signal to control the moving speed of the vertical moving part of the rear axle support mechanism and the transverse moving part of the rear axle support mechanism.

[0050] Compared with the prior art, the beneficial effects of the utility model are:

[0051] 1. The utility model is used for the chassis assembly pressing and rear axle supporting device, by arranging a pressing mechanism, a rear axle supporting mechanism, a pressing hook and a rear axle supporting block, etc., the pressing mechanism drives the pressing hook to be inserted into the rear end hole of the vehicle body, so as to achieve the pressing of the vehicle and keep the vehicle body from moving, and the rear axle supporting mechanism drives the rear axle supporting block to lift the rear axle brake disc and achieve support, keep the rear axle supported and not move or shake, that is, the pressing of the vehicle and the rear axle support can be achieved, and the problems of assembly difficulty and poor assembly accuracy existing in the chassis assembly process are solved.

[0052] 2. The utility model adopts an integral design, a common rail design for the car pressing mechanism and the rear axle supporting mechanism, and a movable rail design, so as to achieve the ability to be compatible with vehicles of different wheelbases and vehicle lengths. The integrated common rail design occupies a small area, and effectively solves the problem of insufficient layout of assembly and separation stations caused by two sets of independent movable mechanisms.

[0053] 3. The vehicle pressing mechanism and rear axle supporting mechanism of the utility model can be adjusted vertically and horizontally to realize the vertical and horizontal adjustment of the vehicle pressing hook and the rear axle supporting block, and can adjust the supporting position of the vehicle pressing and the rear brake disc, and has compatibility with vehicle models of certain height and width.

[0054] 4. The utility model adopts a PLC controller to control the movement of each electric cylinder to achieve vertical, longitudinal and lateral adjustment of the press hook and the rear axle support block. The electric cylinder has high movement accuracy, thereby ensuring high-precision assembly.

[0055] 5. The utility model adopts a sub-functional assembly design, which is independent of each other, has a simple structure, and is easy to maintain and service; it supports the normal process actions of the chassis overall assembly station and the assembly and separation station of the chassis assembly; it realizes the pressing and supporting functions of the automatic assembly / separation station and realizes the automation of the station; it solves the failure of the rear axle pin and solves the problem of large clearance of the rear axle locating pin and inaccurate rear axle positioning; automated operation can reduce the number of people in the assembly station and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0057] Figure 1 It is a structural schematic diagram of the chassis assembly press and rear axle support device of the utility model from one perspective;

[0058] Figure 2 It is a structural schematic diagram of the chassis assembly press and rear axle support device of the utility model from another perspective;

[0059] Figure 3 It is a structural schematic diagram of the car pressing mechanism of the utility model from one viewing angle;

[0060] Figure 4 It is a structural schematic diagram of the car pressing mechanism of the utility model from another perspective;

[0061] Figure 5 It is a structural schematic diagram of the rear axle support mechanism of the utility model from one perspective;

[0062] Figure 6 It is a structural schematic diagram of the rear axle support mechanism of the utility model from another perspective.

[0063] The marks shown in the figure are:

[0064] 10-track;

[0065] 20-pressing mechanism; 21-pressing mechanism base; 22-pressing mechanism vertical rail; 23-pressing mechanism vertical moving part; 24-second pressing electric cylinder; 25-pressing mechanism horizontal rail; 26-pressing mechanism horizontal moving part; 27-third pressing electric cylinder; 28-third stop block; 29-fourth stop block; 210-fifth stop block; 211-sixth stop block; 212-first pressing electric cylinder;

[0066] 30-rear axle support mechanism; 31-rear axle support mechanism base; 32-rear axle support mechanism vertical rail; 33-rear axle support mechanism vertical moving member; 34-second supporting electric cylinder; 35-rear axle support mechanism horizontal rail; 36-rear axle support mechanism horizontal moving member; 37-third supporting electric cylinder; 38-seventh stop block; 39-eighth stop block; 312-first supporting electric cylinder;

[0067] 40-pressing hook;

[0068] 50-rear axle support block;

[0069] 61-first position sensor; 62-first sensing sheet; 63-second position sensor; 64-second sensing sheet; 65-third position sensor; 66-third sensing sheet; 67-fourth position sensor; 68-fourth sensing sheet; 69-fifth position sensor; 610-fifth sensing sheet;

[0070] 71-the first stop block; 72-the second stop block. DETAILED DESCRIPTION

[0071] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0072] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0073] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be connected between, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0074] Please refer to Figures 1 to 6 The preferred embodiment of the utility model provides a device for assembling a press car and a rear axle support on a chassis, which mainly includes a track 10, a press car mechanism 20, a rear axle support mechanism 30, a press car hook 40 and a rear axle support block 50.

[0075] The track 10 is in the form of a double-line track and is fixed on the ground. In this exemplary embodiment, the track 10 is a straight track, and its extending direction is defined as the longitudinal direction.

[0076] The vehicle pressing mechanism 20 is slidably disposed on the track 10 and can move along the track 10 . The vehicle pressing mechanism 20 is used to realize vehicle pressing.

[0077] like Figures 1 to 4As shown, the pressing mechanism 20 mainly includes a pressing mechanism base 21, a pressing mechanism vertical rail 22, a pressing mechanism vertical moving member 23, a second pressing electric cylinder 24, a pressing mechanism transverse rail 25, a pressing mechanism transverse moving member 26 and a third pressing electric cylinder 27. The pressing mechanism base 21 is slidably arranged on the track 10 so as to be able to travel longitudinally on the track 10. The pressing mechanism vertical rail 22 is vertically fixed on the pressing mechanism base 21, and the pressing mechanism vertical rail 22 adopts the form of a double-line rail. In this exemplary embodiment, the pressing mechanism vertical rail 22 is a linear rail, and its extension direction is defined as vertical. The pressing mechanism vertical moving member 23 is slidably arranged on the pressing mechanism vertical rail 22 so as to be able to travel vertically on the pressing mechanism vertical rail 22. The second electric cylinder 24 is fixedly arranged on the press mechanism base 21, and the end of the output shaft of the second electric cylinder 24 is connected to the vertical moving member 23 of the press mechanism to drive the vertical moving member 23 of the press mechanism to move along the vertical rail 22 of the press mechanism. Specifically, when the output shaft of the second electric cylinder 24 is extended, it can push the vertical moving member 23 of the press mechanism vertically upward, and when the output shaft of the second electric cylinder 24 is retracted, it can pull the vertical moving member 23 of the press mechanism vertically downward. The press mechanism transverse rail 25 is transversely fixed on the vertical moving member 23 of the press mechanism, and the press mechanism transverse rail 25 adopts the form of a double-line rail. In this exemplary embodiment, the press mechanism transverse rail 25 is a linear rail, and its extension direction is set to the transverse direction, which extends to both sides of the track 10. The press mechanism transverse moving member 26 is slidably arranged on the press mechanism transverse rail 25 so as to be able to move transversely on the press mechanism transverse rail 25. The third pressing electric cylinder 27 is fixedly arranged on the vertical moving part 23 of the pressing mechanism, and the end of the output shaft of the third pressing electric cylinder 27 is connected to the transverse moving part 26 of the pressing mechanism to drive the transverse moving part 26 of the pressing mechanism to move along the transverse rail 25 of the pressing mechanism. Specifically, when the output shaft of the third pressing electric cylinder 27 is extended, it can push the transverse moving part 26 of the pressing mechanism to move transversely to one side, and when the output shaft of the third pressing electric cylinder 27 is retracted, it can pull the transverse moving part 26 of the pressing mechanism to move transversely to the other side.

[0078] Two third stop blocks 28 are arranged on the vertical rail 22 of the pressing mechanism along the extension direction of the vertical rail 22 of the pressing mechanism, and a fourth stop block 29 is arranged on the vertical moving part 23 of the pressing mechanism. The fourth stop block 29 is located between the two third stop blocks 28 and the three are vertically opposite to each other, so as to limit the extreme position of the vertical moving part 23 of the pressing mechanism moving along the vertical rail 22 of the pressing mechanism through the contact between the fourth stop block 29 and the third stop block 28. For example, when the vertical moving part 23 of the pressing mechanism moves to a certain position, the fourth stop block 29 contacts one of the third stop blocks 28. At this time, the vertical moving part 23 of the pressing mechanism can no longer continue to move to that side, so that it can be limited to avoid exceeding a certain stroke.

[0079] Two fifth stop blocks 210 are arranged on the cross rail 25 of the pressing mechanism along the extension direction of the cross rail 25 of the pressing mechanism, and the transverse moving member 26 of the pressing mechanism is provided with a sixth stop block 211. The sixth stop block 211 is located between the two fifth stop blocks 210 and the three are horizontally opposite to each other, so as to limit the extreme position of the transverse moving member 26 of the pressing mechanism moving along the cross rail 25 of the pressing mechanism through the contact between the sixth stop block 211 and the fifth stop block 210. For example, when the transverse moving member 26 of the pressing mechanism moves to a certain position, the sixth stop block 211 contacts one of the fifth stop blocks 210. At this time, the transverse moving member 26 of the pressing mechanism can no longer continue to move to that side, so that it can be limited to avoid exceeding a certain stroke.

[0080] A plurality of second position sensors 63 are provided on the vertical rail 22 of the pressing mechanism along the extension direction of the vertical rail 22 of the pressing mechanism. In this exemplary embodiment, there are four second position sensors 63, and there is a certain distance between the four second position sensors 63. The second position sensors 63 preferably adopt electromagnetic induction position sensors. A second sensing sheet 64 for interacting with the second position sensor 63 is provided on the vertical moving part 23 of the pressing mechanism. The second sensing sheet 64 can move with the vertical moving part 23 of the pressing mechanism, and will pass through the second position sensor 63. When passing through the second position sensor 63, it is sensed by the second position sensor 63 so that the position can be detected, and then the position of the vertical moving part 23 of the pressing mechanism can be detected to achieve position detection.

[0081] A plurality of third position sensors 65 are arranged on the press mechanism transverse rail 25 along the extension direction of the press mechanism transverse rail 25. In this exemplary embodiment, there are four third position sensors 65, and there is a certain distance between the four third position sensors 65. The third position sensors 65 are preferably electromagnetic induction position sensors. A third sensing sheet 66 for interacting with the third position sensor 65 is arranged on the press mechanism transverse moving member 26. The third sensing sheet 66 can move with the press mechanism transverse moving member 26 and pass through the third position sensor 65. When passing through the third position sensor 65, the third position sensor 65 senses the third position sensor 65 so that the position can be detected, and then the position of the press mechanism transverse moving member 26 can be detected to achieve position detection.

[0082] The utility model for chassis assembly press and rear axle support device also includes a PLC controller, which controls each electric cylinder to control the movement of the press mechanism 20 and the rear axle support mechanism 30. The PLC controller is electrically connected to the second press electric cylinder 24, the third press electric cylinder 27, the second position sensor 63 and the third position sensor 65. The second position sensor 63 detects the position of the vertical moving part 23 of the press mechanism on the vertical rail 22 of the press mechanism and sends a signal to the PLC controller. The third position sensor 65 detects the position of the horizontal moving part 26 of the press mechanism on the horizontal rail 25 of the press mechanism and sends a signal to the PLC controller. The PLC controller obtains the position signal and can control the second press electric cylinder 24 and the third press electric cylinder 27 according to the signal to control the movement speed of the vertical moving part 23 of the press mechanism and the horizontal moving part 26 of the press mechanism. The second position sensor 63 and the third position sensor 65 can not only realize position detection, but also cooperate with the PLC controller to realize the speed control of the press mechanism 20 when it is running. Each of the two adjacent second position sensors 63 or third position sensors 65 can be divided into a stroke. Then, within the corresponding stroke, the PLC controller controls the moving speed of the vertical moving part 23 of the car pressing mechanism and the horizontal moving part 26 of the car pressing mechanism in the corresponding stroke according to the position information. For example, the closer the car pressing process is to be realized, the slower the moving speed is controlled to avoid stalling and collision and other accidents. The second position sensor 63 and the third position sensor 65 can realize position detection, so that they can cooperate with the PLC controller to verify whether the vertical moving part 23 of the car pressing mechanism and the horizontal moving part 26 of the car pressing mechanism are in the preset position to ensure the smooth progress of the car pressing.

[0083] The pressing hook 40 is fixedly arranged on the lateral moving part 26 of the pressing mechanism. The pressing hook 40 can be driven by the pressing mechanism 20 to press the vehicle. For example, the pressing hook 40 is used for the chassis assembly pressing and rear axle support device of the utility model. The pressing mechanism 20 drives the pressing hook 40 to a certain position and inserts it into the rear end hole of the vehicle body, so that the vehicle can be pressed and the vehicle body can be kept from moving. Compared with the method of pressing the anti-collision beam in the prior art, the method of pressing the rear end hole can simplify the design of the pressing mechanism and reduce the strength and position requirements of the product vehicle body pressing position.

[0084] The rear axle support mechanism 30 is slidably arranged on the track 10 and can move along the track 10. The rear axle support mechanism 30 is used to realize the rear axle support. In the chassis assembly press and rear axle support device of the utility model, the press mechanism 20 and the rear axle support mechanism 30 are simultaneously arranged on the track 10, with an integrated common rail design and a small footprint, which effectively solves the problem of insufficient assembly and separation station layout caused by two sets of independent moving mechanisms.

[0085] like Figure 1 , Figure 2 and Figure 5 , Figure 6 As shown, the rear axle support mechanism 30 includes a rear axle support mechanism base 31, a rear axle support mechanism vertical rail 32, a rear axle support mechanism vertical moving member 33, a second supporting electric cylinder 34, a rear axle support mechanism transverse rail 35, a rear axle support mechanism transverse moving member 36 and a third supporting electric cylinder 37. The rear axle support mechanism base 31 is slidably arranged on the track 10 so as to be able to walk longitudinally on the track 10. The rear axle support mechanism vertical rail 32 is vertically fixed on the rear axle support mechanism base 31, and the rear axle support mechanism vertical rail 32 adopts the form of a double-line rail. In this exemplary embodiment, the rear axle support mechanism vertical rail 32 is a linear rail, and its extension direction is defined as vertical. The rear axle support mechanism vertical moving member 33 is slidably arranged on the rear axle support mechanism vertical rail 32 so as to be able to walk vertically on the rear axle support mechanism vertical rail 32. The second supporting electric cylinder 34 is fixedly arranged on the rear axle supporting mechanism base 31, and the end of the output shaft of the second supporting electric cylinder 34 is connected to the rear axle supporting mechanism vertical moving member 33 to lead the rear axle supporting mechanism vertical moving member 33 to move along the rear axle supporting mechanism vertical rail 32. Specifically, when the output shaft of the second supporting electric cylinder 34 is extended, it can push the rear axle supporting mechanism vertical moving member 33 vertically upward, and when the output shaft of the second supporting electric cylinder 24 is retracted, it can pull the rear axle supporting mechanism vertical moving member 33 vertically downward. The rear axle supporting mechanism transverse rail 35 is transversely fixed on the rear axle supporting mechanism vertical moving member 33, and the rear axle supporting mechanism transverse rail 35 adopts the form of a double-line rail. In this exemplary embodiment, the rear axle supporting mechanism transverse rail 35 is a linear rail, and its extension direction is set to the transverse direction, which extends to both sides of the track 10. The rear axle supporting mechanism transverse moving member 36 is slidably arranged on the rear axle supporting mechanism transverse rail 35 so as to be able to move transversely on the rear axle supporting mechanism transverse rail 35. The third supporting electric cylinder 37 is fixedly arranged on the vertical moving part 33 of the rear axle supporting mechanism, and the end of the output shaft of the third supporting electric cylinder 37 is connected to the transverse moving part 36 of the rear axle supporting mechanism to lead the transverse moving part 36 of the rear axle supporting mechanism to move along the transverse rail 35 of the rear axle supporting mechanism. Specifically, when the output shaft of the third supporting electric cylinder 37 is extended, it can push the transverse moving part 36 of the rear axle supporting mechanism to move transversely to one side, and when the output shaft of the third supporting electric cylinder 37 is retracted, it can pull the transverse moving part 36 of the rear axle supporting mechanism to move transversely to the other side.

[0086] Two seventh stop blocks 38 are arranged on the vertical rail 32 of the rear axle support mechanism along the extension direction of the vertical rail 32 of the rear axle support mechanism, and the vertical moving member 33 of the rear axle support mechanism is provided with an eighth stop block 39. The eighth stop block 39 is located between the two seventh stop blocks 38 and the three are vertically opposite to each other, so as to limit the extreme position of the vertical moving member 33 of the rear axle support mechanism moving along the vertical rail 32 of the rear axle support mechanism through the contact between the eighth stop block 39 and the seventh stop block 38. For example, when the vertical moving member 33 of the rear axle support mechanism moves to a certain position, the eighth stop block 39 contacts one of the seventh stop blocks 38. At this time, the vertical moving member 33 of the rear axle support mechanism can no longer continue to move to that side, so that it can be limited to avoid exceeding a certain stroke.

[0087] Two ninth stop blocks are arranged on the rear axle support mechanism cross rail 35 along the extension direction of the rear axle support mechanism cross rail 35, and the rear axle support mechanism transverse moving member 36 is provided with a tenth stop block. The tenth stop block is located between the two ninth stop blocks and the three are horizontally opposite to each other, so as to limit the extreme position of the rear axle support mechanism transverse moving member 36 along the rear axle support mechanism cross rail 35 through the contact between the tenth stop block and the ninth stop block. For example, when the rear axle support mechanism transverse moving member 36 moves to a certain position, the tenth stop block contacts one of the ninth stop blocks. At this time, the rear axle support mechanism transverse moving member 36 can no longer continue to move to that side, so that it can be limited to avoid exceeding a certain stroke.

[0088] A plurality of fourth position sensors 67 are provided on the vertical rail 32 of the rear axle support mechanism along the extension direction of the vertical rail 32 of the rear axle support mechanism. In this exemplary embodiment, there are three fourth position sensors 67, and there is a certain distance between the three fourth position sensors 67. The fourth position sensor 67 preferably adopts an electromagnetic induction position sensor. A fourth sensing sheet 68 for interacting with the fourth position sensor 67 is provided on the vertical moving member 33 of the rear axle support mechanism. The fourth sensing sheet 68 can move along the vertical moving member 33 of the rear axle support mechanism and pass through the fourth position sensor 67. When passing through the fourth position sensor 67, the fourth position sensor 67 senses the fourth position sensor 67 so that the position can be detected, and then the position of the vertical moving member 33 of the rear axle support mechanism can be detected to achieve position detection.

[0089] A plurality of fifth position sensors 69 are arranged on the rear axle support mechanism transverse rail 35 along the extension direction of the rear axle support mechanism transverse rail 35. In this exemplary embodiment, there are three fifth position sensors 69, and there is a certain distance between the three fifth position sensors 69. The fifth position sensor 69 preferably adopts an electromagnetic induction position sensor. A fifth sensing sheet 610 for interacting with the fifth position sensor 69 is arranged on the rear axle support mechanism transverse moving member 36. The fifth sensing sheet 610 can move along the rear axle support mechanism transverse moving member 36 and pass through the fifth position sensor 69. When passing through the fifth position sensor 69, the fifth position sensor 69 senses the fifth position sensor 69 so that the position can be detected, and then the position of the rear axle support mechanism transverse moving member 36 can be detected to achieve position detection.

[0090] The PLC controller is electrically connected to the second supporting electric cylinder 34, the third supporting electric cylinder 37, the fourth position sensor 67 and the fifth position sensor 69. The fourth position sensor 67 detects the position of the vertical moving member 33 of the rear axle supporting mechanism on the vertical rail 32 of the rear axle supporting mechanism and sends a signal to the PLC controller. The fifth position sensor 69 detects the position of the lateral moving member 36 of the rear axle supporting mechanism on the lateral rail 35 of the rear axle supporting mechanism and sends a signal to the PLC controller. The PLC controller obtains the position signal and can control the second supporting electric cylinder 34 and the third supporting electric cylinder 37 according to the signal to control the movement speed of the vertical moving member 33 of the rear axle supporting mechanism and the lateral moving member 36 of the rear axle supporting mechanism. The fourth position sensor 67 and the fifth position sensor 69 can not only realize position detection, but also cooperate with the PLC controller to realize the speed control when the rear axle supporting mechanism 30 is in operation. Each of the two adjacent fourth position sensors 67 or fifth position sensors 69 can be divided into a stroke. Then, within the corresponding stroke, the PLC controller controls the movement speed of the vertical moving member 33 of the rear axle support mechanism and the lateral moving member 36 of the rear axle support mechanism in the corresponding stroke according to the position information. For example, the closer the rear axle support process is to achieve support, the slower the movement speed is controlled to avoid stalling and collision and other accidents. The fourth position sensor 67 or the fifth position sensor 69 can realize position detection, so that it can cooperate with the PLC controller to verify whether the vertical moving member 33 of the rear axle support mechanism and the lateral moving member 36 of the rear axle support mechanism are in the preset position to ensure the smooth progress of the rear axle support.

[0091] The rear axle support block 50 is fixedly arranged on the lateral moving member 36 of the rear axle support mechanism. The rear axle support block 50 can be driven by the rear axle support mechanism 30 to support the rear axle, such as the chassis assembly press and rear axle support device of the utility model, and the rear axle support mechanism 30 drives the rear axle support block 50 to a certain position, lifts the rear axle brake disc and supports it, so that the rear axle support can be achieved, and the rear axle support is kept without moving or shaking. Compared with the chain pulling the vehicle body in the prior art, the rear axle support block 50 is used to lift the rear axle brake disc, so that the rear axle support does not shake, the height is accurately determined, and assembly synchronization can be achieved, which can simplify the design of the support mechanism and ensure the assembly accuracy of the rear axle. At the same time, the vertical support brake disc design is adopted, and the assembly tray is used to lock the vehicle body and chassis to prevent the vehicle from sliding, and the spring force is suppressed so that the rear tray positioning pin is not stressed, and the assembly process is supported to be separated normally.

[0092] like Figure 1 and Figure 2 As shown, a first pressing electric cylinder 212 and a first supporting electric cylinder 312 are fixedly arranged on the track 10. The end of the output shaft of the first pressing electric cylinder 212 is connected to the pressing mechanism 20 to drive the pressing mechanism 20 to move along the track 10. Specifically, the end of the output shaft of the first pressing electric cylinder 212 is connected to the pressing mechanism base 21 of the pressing mechanism 20. When the output shaft of the first pressing electric cylinder 212 is extended, the pressing mechanism 20 can be pushed to move longitudinally to one end, and when the output shaft of the first pressing electric cylinder 212 is retracted, the pressing mechanism 20 can be pulled to move longitudinally to the other end. The end of the output shaft of the first supporting electric cylinder 312 is connected to the rear axle supporting mechanism 30 to drive the rear axle supporting mechanism 30 to move along the track 10. Specifically, the end of the output shaft of the first supporting electric cylinder 312 is connected to the rear axle supporting mechanism base 31 of the rear axle supporting mechanism 30. When the output shaft of the first supporting electric cylinder 312 is extended, it can push the rear axle supporting mechanism 30 to move longitudinally to one end, and when the output shaft of the first supporting electric cylinder 312 is retracted, it can pull the rear axle supporting mechanism 30 to move longitudinally to the other end.

[0093] A plurality of first position sensors 61 are arranged on the track 10 along the extension direction of the track 10. In this exemplary embodiment, there are eight first position sensors 61, and the eight first position sensors 61 are divided into two groups, each of which is located at one end of the track 10 to correspond to the pressing mechanism 20 and the rear axle support mechanism 30 respectively. The four first position sensors 61 in each group have a certain distance between each other, and the first position sensors 61 preferably adopt electromagnetic induction position sensors. A first sensing sheet 62 for interacting with the first position sensor 61 is arranged on the pressing mechanism base 21 of the pressing mechanism 20. The first sensing sheet 62 can move with the pressing mechanism base 21 of the pressing mechanism 20, and will pass through the first position sensor 61. When passing through the first position sensor 61, it is sensed by the first position sensor 61 so that the position can be detected, and then the position of the pressing mechanism base 21 of the pressing mechanism 20 can be detected to achieve position detection. A first sensing plate 62 for interacting with a first position sensor 61 is provided on the rear axle support mechanism base 31 of the rear axle support mechanism 30. The first sensing plate 62 can move with the vehicle pressing mechanism base 21 of the vehicle pressing mechanism 20 and will pass through the first position sensor 61. When passing through the first position sensor 61, it is sensed by the first position sensor 61 so that the position can be detected, and then the position of the rear axle support mechanism base 31 of the rear axle support mechanism 30 can be detected to realize position detection.

[0094] The PLC controller is electrically connected to the first pressing electric cylinder 212, the first supporting electric cylinder 312 and the first position sensor 61. The first position sensor 61 detects the position of the pressing mechanism 20 and the rear axle supporting mechanism 30 on the track 10 and sends a signal to the PLC controller. The PLC controller obtains the position signal and can control the first pressing electric cylinder 212 and the first supporting electric cylinder 312 according to the signal to control the moving speed of the pressing mechanism 20 and the rear axle supporting mechanism 30 on the track 10. The first position sensor 61 can not only realize position detection, but also cooperate with the PLC controller to realize the speed control of the pressing mechanism 20 and the rear axle supporting mechanism 30 during operation. Each two adjacent first position sensors 61 can be divided into a stroke. In the corresponding stroke, the PLC controller controls the moving speed of the pressing mechanism base 21 and the rear axle supporting mechanism base 31 in the corresponding stroke according to the position information. For example, the closer to the pressing or supporting in the pressing process and / or the rear axle supporting process, the slower the moving speed is controlled to avoid stalling and collision accidents. The first position sensor 61 can realize position detection, so as to cooperate with the PLC controller to verify whether the car pressing mechanism base 21 and the rear axle support mechanism base 31 are in the preset position, so as to ensure the smooth operation of the car pressing and rear axle support. At the same time, the car pressing mechanism 20 and the rear axle support mechanism 30 are set on the track 10 at the same time. When implemented, the two are operated at the same time, so the positions of the two should also be fully considered to avoid mutual interference and collision.

[0095] A plurality of first stop blocks 71 are arranged on the track 10 along the extension direction of the track 10, and two second stop blocks 72 are respectively arranged on the press mechanism base 21 of the press mechanism 20 and the rear axle support mechanism base 31 of the rear axle support mechanism 30, so as to limit the extreme position of the press mechanism 20 and the rear axle support mechanism 30 moving along the track 10 through the contact between the second stop blocks 72 and the first stop blocks 71. The second stop blocks 72 on the press mechanism base 21 are located on both sides of a first stop block 71 and the three are longitudinally opposite. For example, when the press mechanism base 21 moves to a certain position, the second stop block 72 contacts one of the first stop blocks 71, and at this time, the press mechanism base 21 can no longer continue to move to that side, that is, the press mechanism 20 can no longer continue to move to that side, so that the limit can be performed to avoid exceeding a certain stroke. The second stop block 72 on the rear axle support mechanism base 31 is located on both sides of a first stop block 71 and the three are longitudinally opposite. When the rear axle support mechanism base 31 moves to a certain position, the second stop block 72 contacts one of the first stop blocks 71. At this time, the rear axle support mechanism base 31 can no longer continue to move to that side, that is, the rear axle support mechanism 30 can no longer continue to move to that side, so that it can be limited to avoid exceeding a certain stroke.

[0096] During implementation, the first car pressing electric cylinder 212, the second car pressing electric cylinder 24 and the third car pressing electric cylinder 27 as well as the first supporting electric cylinder 312, the second supporting electric cylinder 34 and the third supporting electric cylinder 37 are controlled by the PLC controller to control the longitudinal or vertical or lateral movement of the car pressing mechanism base 21, the car pressing mechanism vertical moving part 23 and the car pressing mechanism lateral moving part 27 as well as the rear axle support mechanism base 31, the rear axle support mechanism vertical moving part 33 and the rear axle support mechanism lateral moving part 37, so as to finally move the car pressing hook 40 and the rear axle support block 50 to the specified position, insert the car pressing hook 40 into the rear end hole of the vehicle body, and then move downward to press the vehicle body, press the vehicle body, keep the posture of the whole vehicle unchanged, move the rear axle support block 50 under the rear axle brake disc and then lift the rear axle brake disc, apply force to the rear axle, ensure that the rear axle spring is in a compressed state, at this time, the body locating pins and parts locating pins of the rear axle will be able to fall freely without the problem of jamming, ensure the positioning accuracy of the pin holes, and thus ensure the overall positioning accuracy of the rear axle.

[0097] The utility model is a device for pressing and supporting a rear axle for assembling a chassis, by providing a pressing mechanism 20, a rear axle supporting mechanism 30, a pressing hook 40 and a rear axle supporting block 50, etc., the pressing mechanism 20 drives the pressing hook 40 to a certain position and inserts it into the rear end hole of the vehicle body, so that the vehicle can be pressed and the vehicle body can be kept immovable. Compared with the method of pressing the anti-collision beam in the prior art, the method of pressing the rear end hole can simplify the design of the pressing mechanism and reduce the strength and position requirements of the product vehicle body pressing position. The rear axle supporting mechanism 30 drives the rear axle supporting block 50 to a certain position, lifts the rear axle brake disc and supports it, so that the rear axle support can be achieved, and the rear axle support can be kept immovable and swaying. Compared with the method of pulling the vehicle body backward with a chain in the prior art, the method of lifting the rear axle brake disc by the rear axle supporting block 50 makes the rear axle support not sway, the height is accurately determined and the assembly synchronization can be achieved, the design of the support mechanism can be simplified, and the assembly accuracy of the rear axle can be guaranteed, that is, the pressing and rear axle support can be achieved, and the problems of assembly difficulty and poor assembly accuracy in the process of chassis assembly are solved.

[0098] The utility model adopts an integral design, a common rail design for the car pressing mechanism 20 and the rear axle supporting mechanism 30, and a movable rail design, so as to achieve the ability to be compatible with vehicles of different wheelbases and vehicle lengths. The integrated common rail design occupies a small area, and effectively solves the problem of insufficient layout of assembly and separation stations due to two sets of independent movable mechanisms.

[0099] The vehicle pressing mechanism 20 and the rear axle supporting mechanism 30 of the utility model can be adjusted vertically and laterally to realize the vertical and laterally adjustable vehicle pressing hook 40 and the rear axle supporting block 50, and can adjust the supporting position of the vehicle pressing and the rear brake disc, and has compatibility with vehicle models of a certain height and width.

[0100] The utility model adopts a PLC controller to control the movement of each electric cylinder to achieve vertical, longitudinal and lateral adjustment of the press hook 40 and the rear axle support block 50. The electric cylinder has high movement accuracy, thereby ensuring high-precision assembly.

[0101] The utility model adopts a sub-functional assembly design, which is independent of each other, has a simple structure, and is easy to maintain and service; it supports the normal process actions of the chassis overall assembly station and the assembly and separation station for chassis assembly; it realizes the pressing and supporting functions of the automatic assembly / separation station and realizes the automation of the station; it solves the problem of the rear axle locking pin failure, and solves the problem of large matching clearance of the rear axle locating pin and inaccurate rear axle positioning; the automated operation can reduce the number of assembly station personnel and reduce production costs.

[0102] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A chassis assembly press and rear axle support device, characterized in that: Included are: Track (10); A vehicle pressing mechanism (20) is arranged on the track (10) and is capable of moving along the track (10); A car pressing hook (40), which is arranged on the car pressing mechanism (20) and can be driven by the car pressing mechanism (20) to press the car; A rear axle support mechanism (30) is disposed on the track (10) and is capable of moving along the track (10); A rear axle support block (50) is arranged on the rear axle support mechanism (30) and can be driven by the rear axle support mechanism (30) to support the rear axle.

2. The chassis assembly press and rear axle support device according to claim 1, characterized in that: A first car pressing electric cylinder (212) and a first supporting electric cylinder (312) are fixedly arranged on the track (10); The end of the output shaft of the first pressing electric cylinder (212) is connected to the pressing mechanism (20) to drive the pressing mechanism (20) to move along the track (10); The end of the output shaft of the first supporting electric cylinder (312) is connected to the rear axle supporting mechanism (30) to drive the rear axle supporting mechanism (30) to move along the track (10).

3. The chassis assembly press and rear axle support device according to claim 2, characterized in that: A plurality of first position sensors (61) are arranged on the track (10) along the extension direction of the track (10); The vehicle pressing mechanism (20) and the rear axle supporting mechanism (30) are respectively provided with a first sensing sheet (62) for interacting with the first position sensor (61); The invention also includes a PLC controller, which is electrically connected to the first pressing electric cylinder (212), the first supporting electric cylinder (312) and the first position sensor (61). The first position sensor (61) detects the positions of the pressing mechanism (20) and the rear axle supporting mechanism (30) on the track (10) and sends a signal to the PLC controller. The PLC controller obtains the position signal and can control the first pressing electric cylinder (212) and the first supporting electric cylinder (312) according to the signal to control the moving speed of the pressing mechanism (20) and the rear axle supporting mechanism (30).

4. The chassis assembly press and rear axle support device according to claim 1, characterized in that: A plurality of first stop blocks (71) are arranged on the track (10) along the extension direction of the track (10), and the vehicle pressing mechanism (20) and the rear axle support mechanism (30) are respectively provided with second stop blocks (72) so as to limit the extreme position of the vehicle pressing mechanism (20) and the rear axle support mechanism (30) moving along the track (10) through the contact between the second stop blocks (72) and the first stop blocks (71).

5. The chassis assembly press and rear axle support device according to claim 1, characterized in that: The vehicle pressing mechanism (20) comprises: A press mechanism base (21) which is slidably disposed on the track (10); A car pressing mechanism vertical rail (22), which is vertically fixed on the car pressing mechanism base (21); A vertical moving member (23) of the car pressing mechanism, which is slidably arranged on the vertical rail (22) of the car pressing mechanism; A second pressing electric cylinder (24) is fixedly arranged on the pressing mechanism base (21), and the end of the output shaft of the second pressing electric cylinder (24) is connected to the pressing mechanism vertical moving part (23) to drive the pressing mechanism vertical moving part (23) to move along the pressing mechanism vertical rail (22); A car pressing mechanism transverse rail (25), which is transversely fixed on the car pressing mechanism vertical moving member (23); A lateral moving member (26) of the car pressing mechanism, which is slidably arranged on the transverse rail (25) of the car pressing mechanism; A third pressing electric cylinder (27) is fixedly arranged on the vertical moving part (23) of the pressing mechanism, and the end of the output shaft of the third pressing electric cylinder (27) is connected to the horizontal moving part (26) of the pressing mechanism to drive the horizontal moving part (26) of the pressing mechanism to move along the horizontal rail (25) of the pressing mechanism; The car pressing hook (40) is fixedly arranged on the transverse moving part (26) of the car pressing mechanism.

6. The chassis assembly press and rear axle support device according to claim 5, characterized in that: Two third stop blocks (28) are arranged on the vertical rail (22) of the pressing mechanism along the extension direction of the vertical rail (22) of the pressing mechanism, and a fourth stop block (29) is arranged on the vertical moving member (23) of the pressing mechanism, so as to limit the extreme position of the vertical moving member (23) of the pressing mechanism moving along the vertical rail (22) of the pressing mechanism through the contact between the fourth stop block (29) and the third stop block (28); Two fifth stop blocks (210) are arranged on the cross rail (25) of the pressing mechanism along the extension direction of the cross rail (25) of the pressing mechanism, and a sixth stop block (211) is arranged on the transverse moving member (26) of the pressing mechanism so as to limit the extreme position of the transverse moving member (26) of the pressing mechanism moving along the cross rail (25) of the pressing mechanism through the contact between the sixth stop block (211) and the fifth stop block (210).

7. The chassis assembly press and rear axle support device according to claim 5, characterized in that: A plurality of second position sensors (63) are arranged on the vertical rail (22) of the vehicle pressing mechanism along the extension direction of the vertical rail (22) of the vehicle pressing mechanism; The vertical moving part (23) of the car pressing mechanism is provided with a second sensing sheet (64) for interacting with the second position sensor (63); A plurality of third position sensors (65) are arranged on the vehicle pressing mechanism transverse rail (25) along the extension direction of the vehicle pressing mechanism transverse rail (25); The lateral moving member (26) of the car pressing mechanism is provided with a third sensing sheet (66) for interacting with the third position sensor (65); The invention also includes a PLC controller, which is electrically connected to the second pressing electric cylinder (24), the third pressing electric cylinder (27), the second position sensor (63) and the third position sensor (65). The second position sensor (63) detects the position of the vertical moving part (23) of the pressing mechanism on the vertical rail (22) of the pressing mechanism and sends a signal to the PLC controller. The third position sensor (65) detects the position of the horizontal moving part (26) of the pressing mechanism on the horizontal rail (25) of the pressing mechanism and sends a signal to the PLC controller. The PLC controller obtains the position signal and can control the second pressing electric cylinder (24) and the third pressing electric cylinder (27) according to the signal to control the moving speed of the vertical moving part (23) of the pressing mechanism and the horizontal moving part (26) of the pressing mechanism.

8. The chassis assembly press and rear axle support device according to claim 1, characterized in that: The rear axle support mechanism (30) comprises: A rear axle support mechanism base (31) which is slidably disposed on the track (10); A rear axle support mechanism vertical rail (32), which is vertically fixed on the rear axle support mechanism base (31); A rear axle support mechanism vertical moving member (33), which is slidably disposed on the rear axle support mechanism vertical rail (32); The second supporting electric cylinder (34) is fixedly arranged on the rear axle supporting mechanism base (31). The end of the output shaft of the second supporting electric cylinder (34) is connected to the vertical moving member (33) of the rear axle supporting mechanism to drive the vertical moving member (33) of the rear axle supporting mechanism to move along the vertical rail (32) of the rear axle supporting mechanism; A rear axle support mechanism transverse rail (35), which is transversely fixed on the rear axle support mechanism vertical moving member (33); A rear axle support mechanism transverse moving member (36), which is slidably disposed on the rear axle support mechanism transverse rail (35); A third supporting electric cylinder (37) is fixedly arranged on the vertical moving member (33) of the rear axle supporting mechanism, and the end of the output shaft of the third supporting electric cylinder (37) is connected to the lateral moving member (36) of the rear axle supporting mechanism to drive the lateral moving member (36) of the rear axle supporting mechanism to move along the transverse rail (35) of the rear axle supporting mechanism; The rear axle support block (50) is fixedly arranged on the lateral moving member (36) of the rear axle support mechanism.

9. The chassis assembly press and rear axle support device according to claim 8, characterized in that: Two seventh stop blocks (38) are arranged on the vertical rail (32) of the rear axle support mechanism along the extension direction of the vertical rail (32) of the rear axle support mechanism, and an eighth stop block (39) is arranged on the vertical moving member (33) of the rear axle support mechanism, so as to limit the extreme position of the vertical moving member (33) of the rear axle support mechanism moving along the vertical rail (32) of the rear axle support mechanism through the contact between the eighth stop block (39) and the seventh stop block (38); Two ninth stop blocks are arranged on the rear axle support mechanism cross rail (35) along the extension direction of the rear axle support mechanism cross rail (35), and the rear axle support mechanism transverse moving member (36) is provided with a tenth stop block, so as to limit the extreme position of the rear axle support mechanism transverse moving member (36) moving along the rear axle support mechanism cross rail (35) through the contact between the tenth stop block and the ninth stop block.

10. The chassis assembly press and rear axle support device according to claim 8, characterized in that: A plurality of fourth position sensors (67) are arranged on the rear axle support mechanism vertical rail (32) along the extension direction of the rear axle support mechanism vertical rail (32); The vertical moving member (33) of the rear axle support mechanism is provided with a fourth sensing sheet (68) for interacting with the fourth position sensor (67); A plurality of fifth position sensors (69) are arranged on the rear axle support mechanism cross rail (35) along the extension direction of the rear axle support mechanism cross rail (35); The rear axle support mechanism transverse moving member (36) is provided with a fifth sensing sheet (610) for interacting with the fifth position sensor (69); The invention also includes a PLC controller, which is electrically connected to the second supporting electric cylinder (34), the third supporting electric cylinder (37), the fourth position sensor (67) and the fifth position sensor (69). The fourth position sensor (67) detects the position of the vertical moving member (33) of the rear axle supporting mechanism on the vertical rail (32) of the rear axle supporting mechanism and sends a signal to the PLC controller. The fifth position sensor (69) detects the position of the lateral moving member (36) of the rear axle supporting mechanism on the lateral rail (35) of the rear axle supporting mechanism and sends a signal to the PLC controller. The PLC controller obtains the position signal and can control the second supporting electric cylinder (34) and the third supporting electric cylinder (37) according to the signal to control the moving speed of the vertical moving member (33) of the rear axle supporting mechanism and the lateral moving member (36) of the rear axle supporting mechanism.

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