General assembly chassis lifting appliance

Abstract

The utility model relates to an automobile production line conveying system, and particularly discloses a general assembly chassis lifting appliance which comprises a lifting appliance main body frame, an X-direction switching structure and a Y-direction switching structure, and the Y-direction switching structure comprises a lifting appliance positioning device (31), a locking pin unlocking device (32) and a Y-direction adjusting motor (35). The Y-direction adjusting motor (35), the locking pin unlocking device (32) and the fixing fork (34) are connected through a connecting piece (33), the Y-direction adjusting motor (35) can drive the fixing fork (34) to move, the locking pin unlocking device (32) can drive the fixing fork (34) to be clamped with and separated from a locking pin (191), and therefore Y-direction axle distance adjustment is achieved. According to the general assembly chassis lifting appliance, X-direction and Y-direction axle distance adjustment can be achieved, the flexibility of the lifting appliance and the vehicle type adaptation degree are improved, multi-vehicle-type collinear production of the general assembly chassis lifting appliance under high takt can be achieved, the structure is simple, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to a conveying system for an automobile production line, in particular to a general assembly chassis hoist. Background Art

[0002] In order to meet the co-production of multiple models, the existing solutions of most mainstream passenger car assembly workshops in China are that one set of assembly chassis hangers corresponds to one type of model, and the corresponding assembly chassis hangers are replaced when the model is changed. However, this approach is more suitable for low-beat production. In this case, once the number of models increases, new assembly chassis hangers need to be made, and the assembly chassis hangers cannot be put into production immediately, which will greatly increase the cost of the enterprise.

[0003] Based on the above reasons, it is difficult for the existing technology to effectively ensure that the same assembly chassis hanger is suitable for the co-production of different vehicle models. Utility Model Content

[0004] The first problem to be solved by the utility model is to provide a general assembly chassis hanger, which uses an X-direction switching structure and a Y-direction switching structure to adjust the X-direction wheelbase and the Y-direction wheelbase of the general assembly chassis hanger to adapt to the co-production of multiple models and high beats.

[0005] In order to solve the above technical problems, the utility model provides an assembly chassis hanger, including a hanger main frame, two ends of the hanger main frame are provided with an X-direction switching structure and a Y-direction switching structure, the Y-direction switching structure includes a hanger positioning device, a locking pin unlocking device and a Y-direction adjustment motor, the Y-direction adjustment motor, the locking pin unlocking device and the fixed fork are connected by a connecting piece, and the locking pin unlocking device can drive the fixed fork and the locking pin to be engaged and separated, thereby realizing Y-direction wheelbase adjustment.

[0006] As a preferred embodiment of the utility model, the main frame of the sling includes a top frame, on which a front suspension arm and a front suspension arm connecting frame are provided, the front suspension arm and the front suspension arm connecting frame are welded and connected, and the front suspension arm is fixedly connected to the front support member.

[0007] More preferably, the front boom is fixedly connected to the top frame via a connecting seat and a rotating shaft, and the front boom connecting frame is fixedly connected to the top frame via the connecting seat and the rotating shaft.

[0008] Further preferably, a sliding shaft is connected to the front boom connecting frame, one end of the rear boom is slidably connected to the sliding shaft in the X direction, and the other end is connected to the front boom connecting frame.

[0009] As another preferred embodiment of the utility model, the X-direction switching structure includes a clamp, an adjustment mechanism mounting bracket, a handle rod detection switch, an adjustment cylinder detection switch, a clamp detection switch, a handle rod pushing device and a handle rod slot. The adjustment mechanism mounting bracket is provided with an X-direction adjustment cylinder, a handle rod and an X-direction adjustment motor. A thimble is connected to the X-direction adjustment cylinder. The X-direction adjustment cylinder is suitable for driving the thimble to move so that the thimble can be inserted into the rear boom positioning hole provided on the main frame of the hanger, and at the same time drives the handle rod pushing device on the adjustment mechanism mounting bracket to make the handle rod disengage from the handle rod slot, thereby adjusting the wheelbase of the rear boom in the X direction; the handle rod detection switch can detect the position of the handle rod, the adjustment cylinder detection switch can detect the stroke of the X-direction adjustment cylinder, and the clamp detection switch is provided on the clamp.

[0010] As another preferred embodiment of the present utility model, a position detection switch is provided on the adjustment mechanism mounting bracket, and adjustment limit switches are provided at both ends of the stroke of the position detection switch.

[0011] More preferably, the handle rod pushing device is fixedly connected to the adjustment mechanism mounting bracket, and the handle rod clamping groove is provided on the front boom connecting frame of the top frame.

[0012] As a specific structural form of the utility model, the Y-direction switching structure also includes a hanger state detection bracket, and the hanger state detection bracket is provided with a hanger state detection switch.

[0013] More specifically, the sling positioning device comprises a lifting mechanism, a sling positioning device connecting seat and a sling bottom positioning pin, and the lifting mechanism and the sling bottom positioning pin are connected via the sling positioning device connecting seat.

[0014] As another specific structural form of the utility model, the locking pin unlocking device includes an extending cylinder, a lifting cylinder, an extending cylinder detection switch and a lifting cylinder detection switch. The extending cylinder can drive the fixed fork to move and engage the locking pin. The Y-direction adjustment motor can drive the locking pin engaged with the fixed fork to move along the Y direction. The lifting cylinder is suitable for driving the locking pin to move.

[0015] Through the above technical scheme, the general assembly chassis hanger of the utility model includes a hanger main frame, and both ends of the hanger main frame are provided with an X-direction switching structure and a Y-direction switching structure, the X-direction switching structure includes a clamp and an adjustment mechanism mounting bracket, the adjustment mechanism mounting bracket is provided with an X-direction adjustment cylinder, a handle rod and an X-direction adjustment motor, the X-direction adjustment cylinder is connected with a ejector, the X-direction adjustment cylinder is suitable for driving the ejector to move so that the ejector can be inserted into the rear boom positioning hole provided on the hanger main frame, and at the same time drive the handle rod pushing device on the adjustment mechanism mounting bracket to make the handle rod disengage from the handle rod slot, thereby adjusting the wheelbase of the rear boom in the X direction; the Y-direction switching structure includes a hanger positioning device, a locking pin unlocking device and a Y-direction adjustment motor, and the Y-direction adjustment motor, the locking pin unlocking device and the fixed fork are connected by a connecting piece. The utility model discloses a general assembly chassis hoist, which realizes the adjustment of the wheelbase in X direction by adjusting the position of the rear lifting arm, and realizes the adjustment of the wheelbase in Y direction by changing the position of the locating pin on the front supporting member and the position of the supporting block on the rear supporting member, thereby improving the flexibility and vehicle type adaptability of the general assembly chassis hoist; when the general assembly chassis hoist is in the empty return section, the wheelbase in X direction and the wheelbase in Y direction are quickly adjusted, so that the general assembly chassis hoist can realize the co-production of multiple vehicle types at a high beat, and the utility model has a simple structure and a good use effect.

[0016] Other advantages of the present invention and the technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a general assembly chassis hanger of an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Side view of

[0019] Figure 3 is a top view of a front support member and a rear support member of an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a rear support member of an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of an X-direction switching structure of an embodiment of the utility model;

[0022] Figure 6 yes Figure 5 Side view of

[0023] Figure 7 This is a schematic diagram of the structure of a Y-direction switching structure of an embodiment of the utility model;

[0024] Figure 8 It is a wheelbase switching flow chart of the utility model;

[0025] Fig. 9 It is the X-direction switching flow chart of the utility model;

[0026] Fig.10 It is a Y-direction switching flow chart of the utility model.

[0027] Description of Reference Numerals

[0028] 11-top frame; 12-front boom; 121-front support; 1211-positioning pin; 1212-slider; 1213-slider guide rail; 1214-moving seat; 13-front boom connection frame; 14-rear boom; 141-rear support; 1411-support block; 1412-slider; 1413-slider guide rail; 1414-moving seat; 142-rear boom positioning hole; 15-rotating shaft; 16-connecting seat; 17-sliding shaft; 18-positioning hole at the bottom of the sling; 19-locking positioning mechanism; 191-locking pin; 192-locking pin landing hole; 193-locking pin detection switch;

[0029] 21-clamp; 211-clamp detection switch; 22-X-direction adjustment cylinder; 221-adjustment cylinder detection switch; 23-thimble; 24-handle rod; 241-handle rod detection switch; 242-handle rod pushing device; 243-handle rod slot; 25-X-direction adjustment motor; 251-position detection; 252-adjustment limit switch; 26-adjustment mechanism mounting bracket;

[0030] 31-sling positioning device; 311-lifting mechanism; 3111-lifting mechanism detection switch; 312-sling positioning device connecting seat; 313-sling bottom positioning pin; 32-locking pin unlocking device; 321-extending cylinder detection switch; 322-lifting cylinder detection switch; 33-connecting piece; 34-fixing fork; 35-Y-axis adjustment motor; 351-position detection switch; 352-in-situ detection switch; 36-sling status detection bracket; 361-sling status detection switch. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" 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 direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1 and Figure 2 As shown, the utility model provides an assembly chassis hoist, including a hoist main body frame, wherein both ends of the hoist main body frame are provided with an X-direction switching structure and a Y-direction switching structure, wherein the Y-direction switching structure includes a hoist positioning device 31, a locking pin unlocking device 32 and a Y-direction adjustment motor 35, wherein the Y-direction adjustment motor 35, the locking pin unlocking device 32 and the fixed fork 34 are connected via a connecting piece 33, and the locking pin unlocking device 32 can drive the fixed fork 34 to engage and disengage with the locking pin 191, thereby realizing Y-direction wheelbase adjustment.

[0034] It should be noted that the X direction in the present invention corresponds to the length direction of the vehicle when the vehicle is assembled, and the Y direction corresponds to the width direction of the vehicle when the vehicle is assembled.

[0035] As a preferred embodiment of the utility model, the main frame of the sling includes a top frame 11, on which a front boom 12 and a front boom connecting frame 13 are provided, the front boom 12 and the front boom connecting frame 13 are welded together, and the front boom 12 is fixedly connected to a front support member 121.

[0036] More preferably, the front boom 12 is fixedly connected to the top frame 11 via a rotating shaft 15 and a connecting seat 16 , and the front boom connecting frame 13 is fixedly connected to the top frame 11 via the connecting seat 16 and the rotating shaft 15 .

[0037] Furthermore, a sliding shaft 17 is connected to the front boom connection frame 13 , one end of the rear boom 14 is slidably connected to the sliding shaft 17 in the X direction, and the other end is connected to the front boom connection frame 13 .

[0038] As a specific embodiment of the main frame of the sling of the utility model, Figure 3 and Figure 4As shown, the main frame of the sling of the utility model includes a top frame 11, a front suspension arm 12, a front suspension arm connecting frame 13, a rear suspension arm 14, a rotating shaft 15, a connecting seat 16, a sliding shaft 17 and a locking and positioning mechanism 19. The front suspension arm 12 and the front suspension arm connecting frame 13 are fixedly connected to the top frame 11 through the rotating shaft 15 and the connecting seat 16. The front end of the front suspension arm 12 and the rear end of the front suspension arm connecting frame 13 can be rotated around the rotating shaft 15 to be in an open state, thereby ensuring the consistency and coordination of the opening of the assembly chassis sling of the utility model. The front suspension arm 12 and the front suspension arm connecting frame 13 are welded into an integral structure to form the main frame structure of the utility model. The sliding shaft 17 is connected to the front suspension arm connecting frame 13, one end of the rear suspension arm 14 is connected to the sliding shaft 17, and the other end is connected to the front suspension arm connecting frame 13. The rear suspension arm 14 can slide back and forth along the sliding shaft 17 to form an X-axis adjustable state. The rear arm 14 is provided with a rear arm positioning hole 142, and the ejector pin 23 is suitable for being inserted into the rear arm positioning hole 142 to position the rear arm 14. The front support 121 is fixedly connected to the lower end of the front arm 12, the slider rail is fixed to the front support 121, the slider rail 1213 is connected to the top of the slider rail 1212, and the slider 1212 is connected to the positioning pin 1211 through the moving seat 1214. The rear arm 14 is fixedly connected to the rear support 141, the slider rail 1413 is fixedly connected to the rear support 141, the slider rail 1413 is connected to the slider 1412, and the slider 1412 is connected to the support block 1411 through the moving seat 1414. The bottom positioning hole 18 of the sling is provided at the bottom of the front support 121. The locking and positioning mechanism 19 includes a locking pin 191 , a locking pin positioning hole 192 and a locking pin detection switch 193 . The locking pin detection switch 193 is used to detect whether the locking pin 191 has fallen to a specified position.

[0039] It should be noted that the front suspension arm 12 and the top frame 11 are relatively stationary and cannot be adjusted in the X direction.

[0040] As another preferred embodiment of the utility model, the X-direction switching structure includes a clamp 21, an adjustment mechanism mounting bracket 26, a handle bar detection switch 241, an adjustment cylinder detection switch 221, a clamp detection switch 211, a handle bar pushing device 242 and a handle bar slot 243, the adjustment mechanism mounting bracket 26 is provided with an X-direction adjustment cylinder 22, a handle bar 24 and an X-direction adjustment motor 25, the X-direction adjustment cylinder 22 is connected to a ejector pin 23, and the X-direction adjustment cylinder 22 is suitable for driving the ejector pin 23 to move, The ejector pin 23 can be inserted into the rear boom positioning hole 142 provided on the main frame of the hanger, and at the same time drive the handle rod pushing device 242 on the adjustment mechanism mounting bracket 26 to make the handle rod 24 disengage from the handle rod slot 243, thereby adjusting the wheelbase of the rear boom 14 in the X direction. The handle rod detection switch 241 can detect the position of the handle rod 24, the adjustment cylinder detection switch 221 can detect the stroke of the X-direction adjustment cylinder 22, and the clamp detection switch 211 is arranged on the clamp 21.

[0041] Preferably, a position detector 251 is provided on the adjustment mechanism mounting bracket 26 , and adjustment limit switches 252 are provided at both ends of the stroke of the position detector 251 .

[0042] More preferably, the handle bar pushing device 242 is fixedly connected to the adjustment mechanism mounting bracket 26 , and the handle bar slot 243 is provided on the front boom connecting frame 13 of the top frame 11 .

[0043] As a specific embodiment of the X-direction switching structure of the utility model, Figure 5 and Figure 6As shown, the X-direction switching structure includes a clamp 21, an adjustment mechanism mounting bracket 26, a handle bar detection switch 241, an adjustment cylinder detection switch 221, a clamp detection switch 211, a handle bar pushing device 242 and a handle bar clamping slot 243. The adjustment mechanism mounting bracket 26 is provided with an X-direction adjustment cylinder 22, a handle bar 24 and an X-direction adjustment motor 25. The X-direction adjustment cylinder 22 is connected with an ejector pin 23, and the handle bar clamping slot 243 is provided on the boom connection frame 13. The X-direction adjustment cylinder 22 drives the ejector pin 23 to move forward, and the front end tip of the ejector pin 23 can be inserted into the rear boom positioning hole 142 for positioning the rear boom 14. At the same time, the handle bar pushing device 242 is fixedly connected to the adjustment mechanism mounting bracket 26, and the handle bar pushing device 242 can make the handle bar 24 disengage from the handle bar clamping slot 243, so that the rear boom 14 can achieve an adjustable wheelbase in the X direction. The adjustment cylinder detection switch 221 is used to detect the formation of the X-axis adjustment cylinder 22, and the handle rod detection switch 241 is used to detect the position of the handle rod 24. Specifically, the X-axis adjustment motor 25 drives the ejector pin 23 to move forward, so that the rear suspension arm 14 is adjustable in the X-axis along the sliding shaft 17, and the position detection 251 provides accurate position data for the X-axis wheelbase switching, and the adjustment limit switches 252 set at both ends play the role of travel limit protection.

[0044] The working process of the X-direction switching structure of the utility model is as follows:

[0045] like Fig. 9 As shown, after the assembly chassis hanger is in place and clamped, the X-direction adjustment cylinder 22 extends into place, the X-direction adjustment cylinder 22, the ejector pin 23 and the handle rod pusher 242 act together, the ejector pin 23 is inserted into the rear boom positioning hole 142, the handle rod pusher 242 pushes the handle rod 24, the handle rod 24 is disengaged from the handle rod clamping slot 243, the handle rod detection switch 241 is triggered, and the rear boom 14 is in the X-direction wheelbase adjustable state. After the X-direction adjustment motor 25 is adjusted into place, the X-direction adjustment cylinder 22 drives the ejector pin 23 and the handle rod pusher 242 to retract together, the handle rod 24 falls back into the handle rod clamping slot 243, and after retracting into place, the handle rod reset detection switch 241 is triggered, and the rear boom 14 is in the locked state, at which point the X-direction switching is completed.

[0046] As another preferred embodiment of the present utility model, the Y-direction switching structure further includes a hanger state detection bracket 36 , and the hanger state detection bracket 36 is provided with a hanger state detection switch 361 .

[0047] Preferably, the sling positioning device 31 comprises a lifting mechanism 311 , a sling positioning device connecting seat 312 and a sling bottom positioning pin 313 , and the lifting mechanism 311 and the sling bottom positioning pin 313 are connected via the sling positioning device connecting seat 312 .

[0048] Further preferably, the locking pin unlocking device 32 includes an extending cylinder, a lifting cylinder, an extending cylinder detection switch 321 and a lifting cylinder detection switch 322, the extending cylinder can drive the fixed fork 34 to move and clamp the locking pin 191, the Y-direction adjustment motor 35 can drive the locking pin 191 clamped with the fixed fork 34 to move along the Y direction, and the lifting cylinder is suitable for driving the locking pin 191 to move.

[0049] In the utility model, Figure 8 In the wheelbase switching flow chart shown, after the final assembly chassis hanger of the utility model is in place, the clamp 21 is actuated to clamp the final assembly chassis hanger, and the hanger detection switch 361 fixed on the steel platform detects the current state of the final assembly chassis hanger, and adjusts the wheelbase of the final assembly chassis hanger according to the vehicle model data in the production queue: the first step, the X-direction switching structure enables the hanger positioning device 31 installed on the steel platform to lock the final assembly chassis hanger. The second step, after the final assembly chassis hanger is locked, the Y-direction switching structure is used to perform Y-direction adjustment. The third step, after the Y-direction adjustment is completed, the hanger positioning device 31 installed on the steel platform is unlocked, and the X-direction wheelbase switching is performed in the air. After the hanger status detection switch 361 confirms that the state of the final assembly base hanger is correct, the final assembly base hanger is released.

[0050] As a specific embodiment of the Y-direction switching structure of the present utility model, Fig.10As shown, the Y-direction switching structure includes a sling positioning device 31, a locking pin unlocking device 32, a Y-direction adjustment motor 35, and a state detection bracket 36. The sling positioning device 31 includes a lifting mechanism 311, a sling positioning device connecting seat 312, and a sling bottom positioning pin 313. The locking pin unlocking device 32 includes an extension cylinder, a lifting cylinder, an extension cylinder detection switch 321, and a lifting cylinder detection switch 322. The sling positioning device 31 is fixedly connected to the steel platform, and the lifting mechanism 311 and the sling bottom positioning pin 313 are connected through the sling positioning device connecting seat 312. The extension and retraction of the lifting mechanism 311 can drive the sling bottom positioning pin 313 connected thereto to move. The locking pin unlocking device 32, the fixed fork 34 and the Y-axis adjustment motor 35 are connected by the connecting piece 33. The Y-axis adjustment motor 35 drives the fixed fork 34 to move along the Y-axis, thereby stopping the movement after triggering the locking pin detection. The extension cylinder of the locking pin unlocking device 32 drives the fixed fork 34 to move. After being extended to the right position, the fixed fork 34 clamps the locking pin 191 to lock the locking pin 191, and the lifting cylinder of the locking pin unlocking device 32 can drive the locking pin 191 to disengage from the locking pin landing hole 192, thereby unlocking the locking pin 191. The Y-axis adjustment motor 35 drives the fixed fork 34 to move along the Y-axis, so that the locking pin 191 clamped by the fixed fork 34 can be adjusted in the Y-axis. The position detection switch 351 is preferably a laser ranging photoelectric sensor for detecting the wheelbase in the Y-axis. After the Y-axis adjustment motor 35 is adjusted to the right position, the lifting cylinder of the locking pin unlocking device 32 descends, so that the locking pin 191 falls into the locking pin landing hole 192, and the locking pin detection switch 193 detects that it is correct. The extension cylinder of the locking pin unlocking device 32 retracts, so that the fixed fork 34 is separated from the locking pin 191. After the Y-axis adjustment motor 35 is activated, it drives the entire assembly chassis hoist back to the original position, triggering the original position detection switch 352 for detection.

[0051] The working process of the aerial Y-direction switching structure of the utility model is as follows:

[0052] like Fig.10As shown, after the final assembly chassis hanger is in place and clamped, the components on both sides of the final assembly chassis hanger move in the same way, and the lifting mechanism 311 of the hanger positioning device 31 extends out at the same time, and locks the final assembly chassis hanger after it is in place; the Y-axis adjustment motor 35 drives the entire components installed on the connecting piece 33 to move together, and when the locking pin detection switch 193 is triggered, the Y-axis adjustment motor 35 stops moving; the locking pin unlocking device 32 moves at the same time, and the extending cylinder drives the fixed fork 34 to extend together. After it is extended into place, the fixed fork 34 clamps the top of the locking pin 191, and the lifting cylinder drives the locking pin 191 to rise through the fixed fork 34. After the lifting cylinder is in place, the locking pin 191 is in an unlocked state; according to the vehicle model data, the Y-axis adjustment motor 35 can drive the fixed fork 34 to move, thereby achieving driving The locking pin 191 and the support block 1411 fixed on the moving seat 1414 move together, and the locking pin 191 and the positioning pin 1211 fixed on the moving seat 1214 move together, and the Y-axis adjustment motor 35 reaches the corresponding Y-axis position through the laser ranging photoelectric switch; after the Y-axis adjustment motor 35 is adjusted into place, the lifting cylinder of the locking pin unlocking device 32 drives the locking pin 191 to descend through the fixed fork 34, so that the locking pin 191 falls into place, and the signal detection of the locking pin detection switch 193 is normal, and the extending cylinder of the locking pin unlocking device 32 drives the fixed fork to retract; the Y-axis adjustment motor 35 moves to the original position, triggers the original position detection switch 352 and then stops, and after the status of the final assembly chassis hoist is confirmed for the second time, the hoist positioning device 31 retracts at the same time, and the Y-axis switching is completed.

[0053] It should be noted that the locking pin detection switch 193, the clamp detection switch 211, the adjustment cylinder detection switch 221, the handle rod detection switch 241, the adjustment limit switch 252, the extension cylinder detection switch 321, the lifting cylinder detection switch 322, the in-situ detection switch 352, the sling status detection switch 361, and the lifting mechanism 311 in the utility model are all prior arts. Specifically, the locking pin detection switch 193 is a cylindrical proximity switch; the clamp detection switch 211 is a cylindrical proximity switch; the adjustment cylinder detection switch 221 is a cylindrical proximity switch; the handle rod detection switch 241 is a cylindrical proximity switch; the steel yardstick and the steel yardstick reader are used in combination for position detection 251; the adjustment limit switch 252 is a long handle stroke switch; the extension cylinder detection switch 321 is a cylindrical proximity switch; the lifting cylinder detection switch 322 is a cylindrical proximity switch; the in-situ detection switch 352 is a cylindrical proximity switch; the sling status detection switch 361 is a cylindrical proximity switch; the lifting mechanism detection switch 3111 is a cylindrical proximity switch, which depends on actual usage requirements.

[0054] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0056] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A general assembly chassis hanger, characterized in that: The invention comprises a main frame of a sling, wherein two ends of the main frame of the sling are provided with an X-direction switching structure and a Y-direction switching structure, wherein the Y-direction switching structure comprises a sling positioning device (31), a locking pin unlocking device (32) and a Y-direction adjustment motor (35), wherein the Y-direction adjustment motor (35), the locking pin unlocking device (32) and a fixed fork (34) are connected via a connecting piece (33), wherein the Y-direction adjustment motor (35) can drive the fixed fork (34) to move, and the locking pin unlocking device (32) can drive the fixed fork (34) to engage and disengage with the locking pin (191), thereby realizing Y-direction wheelbase adjustment.

2. The final assembly chassis lifting device according to claim 1, characterized in that: The main frame of the sling comprises a top frame (11), on which a front suspension arm (12) and a front suspension arm connecting frame (13) are arranged, the front suspension arm (12) and the front suspension arm connecting frame (13) are welded together, and the front suspension arm (12) is fixedly connected to a front support member (121).

3. The final assembly chassis lifting device according to claim 2, characterized in that: The front suspension arm (12) is fixedly connected to the top frame (11) via a connecting seat (16) and a rotating shaft (15), and the front suspension arm connecting frame (13) is fixedly connected to the top frame (11) via the connecting seat (16) and the rotating shaft (15).

4. The final assembly chassis lifting device according to claim 3, characterized in that: The front boom connection frame (13) is connected to a sliding shaft (17); one end of the rear boom (14) is connected to the sliding shaft (17) in a sliding manner in the X direction, and the other end is connected to the front boom connection frame (13).

5. The final assembly chassis lifting device according to claim 2, characterized in that: The X-direction switching structure comprises a clamp (21), an adjustment mechanism mounting bracket (26), a handle bar detection switch (241), an adjustment cylinder detection switch (221), a clamp detection switch (211), a handle bar pushing device (242) and a handle bar clamping groove (243); the adjustment mechanism mounting bracket (26) is provided with an X-direction adjustment cylinder (22), a handle bar (24) and an X-direction adjustment motor (25); the X-direction adjustment cylinder (22) is connected with an ejector pin (23); the X-direction adjustment cylinder (22) is suitable for driving the ejector pin (23) to move so as to enable the ejector pin (23) to move. The needle (23) is inserted into the rear suspension arm positioning hole (142) provided on the main frame of the suspension device, and at the same time drives the handle rod pushing device (242) on the adjustment mechanism mounting bracket (26) to make the handle rod (24) disengage from the handle rod slot (243), thereby adjusting the wheelbase of the rear suspension arm (14) in the X direction. The handle rod detection switch (241) can detect the position of the handle rod (24), the adjustment cylinder detection switch (221) can detect the stroke of the X-direction adjustment cylinder (22), and the clamp detection switch (211) is arranged on the clamp (21).

6. The final assembly chassis lifting device according to claim 5, characterized in that: The adjustment mechanism mounting bracket (26) is provided with a position detector (251), and adjustment limit switches (252) are provided at both ends of the stroke of the position detector (251).

7. The final assembly chassis lifting device according to claim 6, characterized in that: The handle bar pushing device (242) is fixedly connected to the adjustment mechanism mounting bracket (26), and the handle bar clamping groove (243) is arranged on the front suspension arm connecting frame (13) of the top frame (11).

8. The final assembly chassis lifting device according to any one of claims 1 to 4, characterized in that: The Y-direction switching structure further comprises a hanger state detection bracket (36), and a hanger state detection switch (361) is provided on the hanger state detection bracket (36).

9. The final assembly chassis lifting device according to claim 8, characterized in that: The sling positioning device (31) comprises a lifting mechanism (311), a sling positioning device connecting seat (312) and a sling bottom positioning pin (313), and the lifting mechanism (311) and the sling bottom positioning pin (313) are connected via the sling positioning device connecting seat (312).

10. The final assembly chassis lifting device according to claim 9, characterized in that: The locking pin unlocking device (32) comprises an extending cylinder, a lifting cylinder, an extending cylinder detection switch (321) and a lifting cylinder detection switch (322); the extending cylinder can drive the fixed fork (34) to move and engage the locking pin (191); the Y-direction adjustment motor (35) can drive the locking pin (191) engaged with the fixed fork (34) to move along the Y direction; and the lifting cylinder is suitable for driving the locking pin (191) to move.

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