Insertion piece type tray fulcrum switching device and tray for automobile assembly

Abstract

The invention discloses an insertion piece type tray fulcrum switching device and a tray for automobile assembly, and relates to the field of automobile assembly.The switching device comprises an insertion piece assembly connected with a fulcrum assembly and further comprises a positioning assembly, a locking assembly, a pressing assembly and a shifting rod assembly, and the positioning assembly is connected to the bottoms of the two sides of the insertion piece assembly in a positioning mode; the locking assembly is matched with the positioning assembly, and the insertion piece assembly is locked above the positioning assembly; the pressing assembly applies an acting force to the locking assembly, so that the locking assembly presses the insertion piece assembly; the shifting rod assembly is in transmission connection with the locking assembly, the matching state of the locking assembly and the positioning assembly is changed, and the insertion piece assembly and the fulcrum assembly which need to be fixed are switched. The function of freely replacing the supporting points of the tray is achieved. When mixed production of different vehicle types is carried out, the existing tray base does not need to be replaced, only different tray fulcrum modules need to be replaced, the tray is suitable for different vehicle types, the compatibility of the tray is improved, and the manufacturing cost of the tray is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile assembly, in particular to a plug-in sheet type tray fulcrum switching device and a tray for automobile assembly. BACKGROUND

[0002] With the increase of vehicle models, at least two different vehicle models are produced on a production line in a general assembly workshop, and the trays required by different vehicle models are also different. Most of the existing tray support methods use fixed positioning mechanisms and laid-down positioning mechanisms. The tray fulcrum is fixed and cannot be disassembled and replaced. After a new vehicle model is put into production, modification is required, which has a long modification cycle and high cost. It is difficult to design a compatible tray for different vehicle models. When there are many vehicle models, multiple trays need to be prepared, which is inconvenient for tray classification storage and online calling. A tray library needs to be built for classification storage, which occupies a large area and consumes a lot of cost. In production and assembly, the existing tray not only needs to use a program to call a specific tray, but also needs to set up a special post to adjust the tray fulcrum. The production time is long and the cost is high.

[0003] In order to solve the compatibility problem of the tray, technicians in the field have designed trays with various structures, but there are still various problems.

[0004] As disclosed in CN204339655U, a combined tray for automobile assembly can be used for the positioning and overall assembly of chassis parts of multiple vehicle models, improving the versatility of the tray. The combined tray comprises a sliding rail, a front suspension combined tray, and a rear suspension combined tray. The front part of the sliding rail is provided with multiple front tray universal balls, and the upper ends of the multiple front tray universal balls are connected to the front suspension combined tray. In a free state, the front suspension combined tray moves in four directions of front, back, left, and right through the front tray universal balls. The front part of the sliding rail is provided with a front locking assembly, which locks the front tray universal balls in the front part of the sliding rail in a working state. The rear part of the sliding rail is provided with multiple rear tray universal balls, and the upper ends of the multiple rear tray universal balls are connected to the rear suspension combined tray. In a free state, the rear suspension combined tray moves in four directions of front, back, left, and right through the rear tray universal balls. The rear part of the sliding rail is provided with a rear locking assembly, which locks the rear tray universal balls in the rear part of the sliding rail in a working state. The middle part of the sliding rail is provided with a first exhaust pipe support assembly, a second exhaust pipe support assembly, and a third exhaust pipe support assembly from front to back. The two sides of the sliding rail are provided with a body positioning pin assembly.

[0005] This structure combines multiple functional support assemblies on the tray, and uses a sliding rail design to adjust the position when matching different vehicle models. This structure design makes the tray structure more complex, and the versatility and use efficiency still cannot meet the needs of automobile assembly. SUMMARY

[0006] In order to solve the above problems, the application provides a plug-in type tray fulcrum switching device and a tray for automobile assembly, which has simple structure, better compatibility and adaptability, and can significantly improve the efficiency of automobile assembly.

[0007] In one aspect, the application discloses a plug-in type tray fulcrum switching device, which comprises a plug-in assembly connected with a fulcrum assembly, and further comprises a positioning assembly, a locking assembly, a pressing assembly and a lever assembly, wherein the positioning assembly is positioned and connected at the bottom of both sides of the plug-in assembly; the locking assembly cooperates with the positioning assembly to lock the plug-in assembly above the positioning assembly; the pressing assembly applies force to the locking assembly to make the locking assembly press the plug-in assembly; the lever assembly is in transmission connection with the locking assembly to change the cooperation state of the locking assembly and the positioning assembly, and switch the plug-in assembly and the fulcrum assembly to be fixed.

[0008] The plug-in type tray fulcrum switching device further comprises a limiting assembly connected with the lever assembly, which cooperates with the pressing assembly to limit the position of the locking assembly and the plug-in assembly.

[0009] Preferably, the plug-in assembly comprises a plug-in body, a first fixed shaft and a positioning block, the plug-in body is fixedly connected with the fulcrum assembly; the first fixed shaft is inserted into the plug-in body and cooperates with the locking assembly to lock the plug-in assembly above the positioning assembly; the positioning block is arranged at the lower part of both ends of the plug-in body and is fixedly connected with the positioning assembly in limiting cooperation.

[0010] Preferably, the positioning assembly comprises a positioning support and a second fixed shaft, wherein the positioning support has a convex structure, and a plurality of positioning supports are arranged in parallel; the second fixed shaft is inserted and fixed on the convex part of the positioning support and extends to the outside of the positioning support at both ends; the positioning blocks symmetrically arranged at both sides of the plug-in body are inserted on the positioning support, and the bottom of the positioning block is in clamping cooperation with the second fixed shaft.

[0011] Preferably, the locking assembly comprises a lock hook body, a lock head and a pressing head, the lower end of the lock hook body is in transmission connection with the lever assembly, and the lower end is provided with an arc-shaped limiting guide groove; the lock head is arranged at the upper end of the lock hook body, and the part close to the first fixed shaft is in the shape of a lock hook; the pressing head is arranged on the upper end of the lock hook body away from the lock head and is in abutment with the pressing assembly.

[0012] Preferably, the pressing assembly comprises a fixed sleeve, a spring and a pressing pad, one end of the fixed sleeve is fixed, the other end is connected with the telescopic sleeve; the spring is in a compressed state and is arranged in the cavity where the fixed sleeve is connected with the telescopic sleeve; the pressing pad is arranged at one end of the telescopic sleeve close to the pressing head and abuts against the pressing head.

[0013] Preferably, the driving lever assembly comprises a driving lever, a transmission lever and a bearing seat, one end of the transmission lever is fixedly connected with the driving lever, and the other end is fixedly connected with a plurality of lock hook bodies in the extending direction; the bearing seat is arranged at the end of the transmission lever and is rotationally connected with the transmission lever.

[0014] Preferably, the limiting assembly comprises a wedge-shaped operating handle, a connecting block and a limiting adjusting rod, the wedge-shaped operating handle is fixedly connected with the transmission lever, and the plurality of lock hook bodies are symmetrically arranged on both sides of the wedge-shaped operating handle; one end of the connecting block is fixedly connected with the wedge-shaped operating handle, and the other end is connected with the limiting adjusting rod; the limiting adjusting rod is telescopic relative to the connecting block, so as to adjust the maximum deflection angle of the wedge-shaped operating handle and the transmission lever.

[0015] In another aspect, the present application discloses a tray for automobile assembly, comprising a tray base, and the above-mentioned plug-in tray fulcrum switching device, the plug-in tray fulcrum switching device is arranged on the tray base, and the tray base is fixed on a rack; a plurality of clamping position fixing modules are arranged in parallel on the rack; a plurality of supporting modules are arranged at the bottom of the tray base, and the supporting modules are inserted into fixed insertion holes of the clamping position fixing modules.

[0016] A plurality of clamping modules are arranged at the corners of the tray base, the clamping modules are inserted into the fixed insertion holes, and a matching structure of a positioning connecting hole and a positioning connecting groove in the clamping position fixing module is arranged at the bottom of the clamping module.

[0017] Preferably, the fulcrum assembly comprises a supporting rod and a connecting arm, wherein the top of the supporting rod is provided with a positioning plug or a top block matched with a part to be assembled, and a positioning pin hole is further arranged on the supporting rod close to the lower part of the positioning plug or the top block; the connecting arm is fixed on the plug-in assembly through a plurality of oppositely arranged connecting pins and positioning pins; and the top of the connecting arm is provided with a supporting rod plug for plug-in connection with the supporting rod.

[0018] In a third aspect, the present application further discloses a tray calling method for automobile assembly, comprising the following steps:

[0019] S1: classifying and identifying the fulcrum assembly and the plug-in assembly used for a vehicle type, and storing the data into a standby library after coding;

[0020] S2: establishing a calling mapping relationship between the vehicle type and the fulcrum assembly and the plug-in assembly.

[0021] S3: Identify the pivot components and insert components used in the vehicle model to be assembled, and match them with the current pallet;

[0022] S4: If there is no match, then based on the mapping relationship, retrieve the fulcrum component and the insert component from the spare library and install them into the current tray;

[0023] S5: If a match is found, the pivot components and insert components in the spare library are sorted by position according to the process required for the vehicle model to be assembled.

[0024] S6: Repeat S3-S5 until the vehicle assembly is complete.

[0025] Beneficial effects

[0026] This invention achieves the ability to freely replace the pallet support point by adding a positioning and unlocking mechanism to the pallet base. When different vehicle models are produced on mixed production lines, it is not necessary to replace the existing pallet base; only different pallet support point modules need to be replaced to make it suitable for different vehicle models, thus improving pallet compatibility. The novel pallet structure proposed in this invention can be completed simply by adding pallet support point modules to the existing pallet structure, greatly reducing the manufacturing cost of the new pallet.

[0027] In actual production, a data association is established between the fulcrum components and / or insert components, which are coded and linked to the vehicle model to be assembled. A vision robot automatically identifies the vehicle model and the compatibility of the fulcrum, and the robot automatically switches fulcrums. Automatic switching of fulcrum modules is achieved by scanning barcodes to identify the fulcrum modules that need to be disassembled or installed, reducing labor costs, optimizing on-site working hours, and greatly improving work efficiency. The robot is integrated with the production system and automatically identifies vehicles according to the production sequence, avoiding discrepancies between pallets and vehicle models, and improving production accuracy and efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of one embodiment of the automotive assembly pallet of the present invention.

[0029] Figure 2 For the present invention Figure 1 A magnified view of a partial structure of the embodiment shown.

[0030] Figure 3 For the present invention Figure 1 Side view of the embodiment shown.

[0031] Figure 4 For the present invention Figure 1 Top view of the embodiment shown.

[0032] Figure 5 For the present inventionFigure 4 A-A cross-sectional view of the embodiment shown.

[0033] Figure 6 For the invention Figure 5 A partial structure enlarged view of the embodiment shown.

[0034] Figure 7 For the invention Figure 1 Another partial structure enlarged view of the embodiment shown.

[0035] Figure 8 Structure schematic view of an embodiment of the invention.

[0036] Figure 9 For the invention Figure 8 Top view of the embodiment shown.

[0037] Figure 10 Structure schematic view of an embodiment of the invention.

[0038] Figure 11 Structure schematic view of another embodiment of the invention.

[0039] In the figure:

[0040] 1, rack 2, tray base 3, lever assembly 4, fulcrum assembly 5, plug assembly 6, locking assembly 7, positioning assembly 8, compression assembly 9, limiting assembly

[0041] 101, hoisting module 102, clamping fixing module 1021, fixing socket 1022, positioning connecting hole 1023, positioning connecting groove

[0042] 201, clamping module 202, support module 203, hollow structure

[0043] 301, drive lever 302, transmission rod 303, bearing seat

[0044] 401, support rod 402, connecting arm 403, connecting pin 404, positioning pin 405, support rod plug 4011, positioning plug 4012, positioning pin hole 4013, top block

[0045] 501, plug body 502, first fixed shaft 503, positioning block

[0046] 601, lock hook body 602, limiting guide groove 603, lock head 604, compression head

[0047] 701, second fixed shaft 702, positioning support

[0048] 801, pressing pad 802, spring 803, telescopic cylinder 804, fixed sleeve

[0049] 901, limiting adjusting rod 902, connecting block 903, wedge-shaped operating handle DETAILED DESCRIPTION

[0050] To make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the present application will be further described below in conjunction with the accompanying drawings and through specific embodiments. It can be understood that the specific embodiments described here are only used to explain the present application, but not limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, not all.

[0051] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0052] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixed connection, but also can be detachable connection; can be mechanical connection, but also can be electrical connection; can be directly connected, but also can be indirectly connected through an intermediate medium, can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] Embodiment 1

[0054] As Figures 8-10 shown, the present application discloses a kind of insert piece type tray fulcrum switching device, including the insert piece component 5 connected with fulcrum assembly 4, as Figure 1 And 2As shown, the device further comprises a positioning assembly 7, a pressing assembly 8 and a lever assembly 3; the positioning assembly 7 is positioned and connected at the bottom of both sides of the insert assembly 5; the locking assembly 6 cooperates with the positioning assembly 7 to lock the insert assembly 5 above the positioning assembly 7; the pressing assembly 8 applies force to the locking assembly 6 to make the locking assembly 6 press the insert assembly 5; the lever assembly 3 is in transmission connection with the locking assembly 6 to change the cooperation state of the locking assembly 6 and the positioning assembly 7, and switch the insert assembly 5 and the fulcrum assembly 4 that need to be fixed. By using a power component such as a cylinder to drive the lever assembly 3, the locking assembly 6 is rotated to overcome the force of the pressing assembly 8, so that the locking assembly 6 and the positioning assembly 7 are released from the locking of the insert assembly 5, the insert assembly 5 and the fulcrum assembly 4 are replaced, the new fulcrum assembly 4 is fixed to the positioning assembly 7 by using the insert assembly 5, the driving force of the lever assembly 3 is released, and the reverse pressing force of the pressing assembly 8 is used to make the insert assembly 5 be firmly inserted between the pressing assembly 8 and the positioning assembly 7.

[0055] The positioning assembly 7, the pressing assembly 8 and the lever assembly 3 are multiple groups, which can simultaneously fix multiple insert assemblies 5.

[0056] Embodiment 2

[0057] The insert-type tray fulcrum switching device further comprises a limiting assembly 9, as shown in Figure 8 and 9 As shown, the limiting assembly 9 is connected with the lever assembly 3 and cooperates with the pressing assembly 8 to limit the position of the locking of the locking assembly 6 and the insert assembly 5. The limiting assembly 9 comprises a wedge-shaped operating handle 903, a connecting block 902 and a limiting adjusting rod 901, the wedge-shaped operating handle 903 is fixedly connected with the transmission rod 302 in the lever assembly 3, and the plurality of locking hooks 601 are symmetrically arranged on both sides of the wedge-shaped operating handle 903; one end of the connecting block 902 is fixedly connected with the wedge-shaped operating handle 903, and the other end is connected with the limiting adjusting rod 901; the limiting adjusting rod 901 is telescopic relative to the connecting block 902 to adjust the maximum deflection angle of the wedge-shaped operating handle 903 and the transmission rod 302. The connecting block 902 and the wedge-shaped operating handle 903 are connected in a substantially V-shaped structure, and the included angle of the V-shaped structure is obtuse.

[0058] The limiting adjusting rod 901 can be a threaded rod or other rod structure that can be telescopic at one end. When the limiting adjusting rod 901 rotates, the end portion will abut against the corresponding plate block, causing the wedge-shaped operating handle 903, the connecting block 902 and the transmission rod 302 connected therewith to reach the maximum rotation angle, thereby limiting the working position of the locking assembly 6.

[0059] The wedge-shaped operating handle 903 has two U-shaped groove connectors at one end away from the connecting block 902, which are used to connect to the working plug of the power component and drive the wedge-shaped operating handle 903 to drive the locking component 6 to make fine adjustments to its position.

[0060] Example 3

[0061] like Figure 7 As shown, the insert assembly 5 includes an insert body 501, a first fixing shaft 502, and a positioning block 503. The insert body 501 is fixedly connected to the fulcrum assembly 4. The first fixing shaft 502 is inserted into the insert body 501 and cooperates with the locking assembly 6 to lock the insert assembly 5 above the positioning assembly 7. The positioning block 503 is disposed at the lower part of both ends of the insert body 501 and is fixedly engaged with the positioning assembly 7.

[0062] The positioning component 7 includes a positioning support 702 and a second fixed shaft 701. The positioning support 702 has a convex structure, and multiple positioning supports 702 are arranged in parallel. The second fixed shaft 701 is inserted and fixed to the protrusion of the positioning support 702, and its two ends extend to the outside of the positioning support 702. The positioning blocks 503, symmetrically arranged on both sides of the insert body 501, are inserted onto the positioning support 702, and the bottom of the positioning blocks 503 engages with the second fixed shaft 701. Figure 2 As shown, the bottom of the positioning block 503 is provided with a V-shaped groove. When the bottom of the positioning block 503 is engaged with the second fixed shaft 701, the top of the V-shaped groove contacts the second fixed shaft 701.

[0063] The locking assembly 6 includes a hook body 601, a lock head 603, and a clamping head 604. The lower end of the hook body 601 is connected to the lever assembly 3 and has an arc-shaped limiting guide groove 602 at its lower end. The lock head 603 is located at the upper end of the hook body 601, with the portion near the first fixed shaft 502 forming a hook shape. The clamping head 604 is located on the upper end of the hook body 601, away from the lock head 603, and abuts against the clamping assembly 8. The limiting guide groove 602 is located away from the lock head 603 and cooperates with the corresponding guide rod or guide block structure to prevent the locking assembly 6 from failing in its positioning or working position after the limiting assembly 9 fails, thus preventing locking failure. Simultaneously, because the limiting guide groove 602 is arc-shaped, it also prevents the clamping head 604 from excessively deflecting and damaging the clamping assembly 8.

[0064] like Figure 5 and Figure 6As shown, the compression assembly 8 includes a fixed sleeve 804, a telescopic cylinder 803, a spring 802 and a compression pad 801; one end of the fixed sleeve 804 is fixed, and the other end is telescopically connected with the telescopic cylinder 803; the spring 802 is in a compressed state, arranged in the cavity of the fixed sleeve 804 connected with the telescopic cylinder 803; the compression pad 801 is arranged at one end of the telescopic cylinder 803 close to the compression head 604, and abuts against the compression head 604.

[0065] As shown in the figure, Figure 8 As shown, the lever assembly 3 includes a driving lever 301, a transmission lever 302 and a bearing seat 303, one end of the transmission lever 302 is fixedly connected with the driving lever 301, and the other end is fixedly connected with a plurality of lock hook bodies 601 along the extension direction; the bearing seat 303 is arranged at the end of the transmission lever 302 and is rotationally connected with the transmission lever 302.

[0066] In work, the driving lever 301 can be driven by the air cylinder, the bearing seat 303 can rotate the transmission lever 302, and drive the lock hook bodies 601 connected with the transmission lever 302, as shown in the figure, Figure 2 When the transmission lever 302 is rotated clockwise, the compression head 604 overcomes the elastic force of the spring 802 in the compression assembly 8, so that the lock head 603 is separated from the first fixed shaft 502, and the insert body 501 can be removed from the positioning assembly 7.

[0067] According to the need to replace the insert body 501 and the fulcrum assembly 4, remove the driving force of the driving lever 301, under the action of the elastic force of the spring 802 in the compression assembly 8, the transmission lever 302 will rotate counterclockwise, drive the lock head 603 on the lock hook body 601 to compress the first fixed shaft 502, so that the new insert body 501 is relocked between the positioning assembly 7 and the locking assembly 6.

[0068] In practical application, when replacement is needed, automatic replacement of the insert can be adopted; for example, a robot identifies the vehicle serial number of the vehicle to be assembled, judges the fulcrum assembly 4 that needs to be installed on the current tray, pre-establishes the corresponding relationship between the vehicle and the insert assembly or the fulcrum assembly, and encodes by one-to-one correspondence through the identification code; when the robot identifies that the current insert assembly or fulcrum assembly does not match the vehicle serial number, the insert or fulcrum library can be retrieved, and the improper one can be removed by the mechanical arm or manipulator according to the above steps, and the new insert assembly or fulcrum assembly retrieved is installed on the tray, so that automatic switching of all fulcrums on the tray can be realized.

[0069] Embodiment 4

[0070] As shown in the figure, Figures 1-7As shown, a tray for assembling a car includes a tray base 2, and a plug-in tray fulcrum switching device of the above structure is arranged on the tray base 2, and the tray base 2 is fixed on a rack 1; the rack 1 is provided with a plurality of parallelly arranged clamping position fixing modules 102; the bottom of the tray base 2 is provided with a plurality of supporting modules 202, which are inserted into the fixing insertion holes 1021 of the clamping position fixing modules 102; the corners of the tray base 2 are provided with a plurality of clamping modules 201, which are inserted into the fixing insertion holes 1021, and the bottom of the clamping module 201 is circumferentially provided with a matching structure with the positioning connecting holes 1022 and the positioning connecting grooves 1023 in the clamping position fixing modules 102, such as Figure 7 As shown, the positioning connecting grooves 1023 are arranged on the two sides of the fixing insertion holes 1021, and the positioning connecting holes 1022 are at least three and are arranged around the top edge of the fixing insertion holes 1021. The tray base 2 is also provided with a hollow structure 203 for accommodating the deflection of the wedge-shaped operating handle 903.

[0071] The design of the clamping module 201 and the supporting module 202 of the present application can realize accurate positioning and fixing of the plug-in tray fulcrum switching device and can realize quick disassembly and assembly. In use, the plug-in tray fulcrum switching device is first installed at a designated position by cooperating the clamping position fixing modules 102 and the supporting modules 202, and then the clamping module 201 is embedded in the clamping position fixing modules 102 at the corners of the tray base 2, and is fixed by using the above structure.

[0072] In order to facilitate hoisting and moving, the rack 1 is uniformly provided with four hoisting modules 101, which include a hoisting block extending to one side of the plug-in tray fulcrum switching device and a lifting ring for fixing the hoisting block on the rack 1; the hoisting block is also used to limit the maximum displacement of the plug-in tray fulcrum switching device on the rack 1.

[0073] As shown in Figure 10 and Figure 11 As shown, the fulcrum assembly 4 includes a supporting rod 401 and a connecting arm 402, and the top is provided with a positioning plug 4011 or a top block 4013 matched with the parts to be assembled, and the supporting rod 401 near the lower part of the positioning plug 4011 or the top block 4013 is also provided with a positioning pin hole 4012; the connecting arm 402 is fixed on the plug-in assembly 5 through a plurality of oppositely arranged connecting pins 403 and positioning pins 404; the top of the connecting arm 402 is provided with a supporting rod plug 405 connected with the supporting rod 401. The structural design of the fulcrum assembly 4 can facilitate the positioning and assembly of the automobile assembly parts, and also facilitate the replacement of the working parts of the fulcrum assembly 4, thereby improving the universality.

[0074] In the present application, a production line is adapted to multiple vehicle models in automobile assembly production. Taking a certain vehicle model as an example, when the tray enters the automatic support point assembly switching position, the upper computer identifies whether the support point on the current tray is the support point assembly of the certain vehicle model. If it is the support point assembly of the certain vehicle model, the robot does not operate, and the roller bed is released. If the support point assembly on the current tray is not the support point assembly of the certain vehicle model, the driving part (cylinder) lifts the locking assembly 6 according to the above operation process, the robot clamps the plug-in support point assembly on the tray through the gripper, and puts it into the corresponding storage area of the tray in the storage area. Find the plug-in support point assembly needed by the certain vehicle model in the tray in the storage area, and put the plug-in support point assembly into the positioning assembly 7. Two robots can simultaneously replace two plug-in support point assemblies, and only one action is needed to replace the plug-in assembly and the support point assembly needed by the certain vehicle model. After the replacement is completed, the driving part (cylinder) is lowered, and the locking assembly 6 is automatically locked.

[0075] Although the present application is specifically shown and described in connection with preferred embodiments, those skilled in the art will appreciate that various modifications in form and detail can be made without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. A tab tray fulcrum switching device comprising a tab assembly (5) connected to a fulcrum assembly (4), characterized in that, The utility model also includes positioning assembly (7), positioning is connected in the both sides bottom of insert piece assembly (5);Locking assembly (6) is cooperated with positioning assembly (7), and insert piece assembly (5) is locked on the top of positioning assembly (7);Compression assembly (8) is given to locking assembly (6) force, and locking assembly (6) is compressed insert piece assembly (5);Dial lever assembly (3) is transmission connected with locking assembly (6), and the cooperation state of locking assembly (6) and positioning assembly (7) is changed, and the insert piece assembly (5) and fulcrum assembly (4) that need to be fixed are switched.

2. The pallet point-of-load switching device of claim 1, wherein, The utility model also includes limiting assembly (9), limiting assembly (9) is connected with dial lever assembly (3), and is cooperated with compression assembly (8), and is used for limiting the position of locking assembly (6) and the lock of insert piece assembly (5).

3. The pallet point-of-load switching device of claim 2, wherein, The insert piece assembly (5) includes insert piece body (501), and is fixedly connected with the fulcrum assembly (4); First fixed shaft (502) is inserted on the insert piece body (501), and is cooperated with locking assembly (6), and insert piece assembly (5) is locked on the top of positioning assembly (7); Positioning block (503) is arranged at the both ends lower part of insert piece body (501), and is fixedly cooperated with positioning assembly (7) limiting.

4. The pallet point-of-load switching device of claim 3, wherein, The positioning assembly (7) includes positioning support (702), and a plurality of convex structure positioning supports (702) are arranged in parallel; Second fixed shaft (701) is inserted and fixed on the protruding portion of positioning support (702), and both ends extend to the outside of positioning support (702); The positioning block (503) symmetrically arranged on both sides of insert piece body (501) is inserted on the positioning support (702), and the bottom of positioning block (503) is clamped and cooperated with second fixed shaft (701). The locking assembly (6) includes lock hook body (601), and the lower end is transmission connected with dial lever assembly (3), and the lower end is provided with arc-shaped limiting guide slot (602);Lock head (603) is arranged at the upper end of lock hook body (601), and the part close to first fixed shaft (502) is in the shape of a lock hook;Compression head (604) is arranged on the upper end of lock hook body (601) on the side away from lock head (603), and is abutted with compression assembly (8).

5. The pallet point-of-load switching device of claim 4, wherein, The compression assembly (8) includes fixed sleeve (804), and one end of fixed sleeve (804) is fixed, and the other end is telescopic sleeve joint with telescopic cylinder (803); 6. The pallet point-of-load switching device of claim 5, wherein, Spring (802) is in compression state, and is arranged in the cavity connected with telescopic cylinder (803) of fixed sleeve (804); Compression pad (801) is arranged on the end close to compression head (604) of telescopic cylinder (803), and is abutted with compression head (604). The dial lever assembly (3) includes drive dial lever (301); 7. The pallet point-of-load switching device of claim 6, wherein, Transmission rod (302) is fixedly connected with drive dial lever (301) on one end, and a plurality of lock hook bodies (601) are fixedly connected on the other end along the extension direction; ​ A bearing seat (303) is arranged at the end of the transmission rod (302) and is rotationally connected with the transmission rod (302).

8. The pallet point-of-load switching device of claim 7, wherein, The limiting assembly (9) comprises A wedge-shaped operating handle (903) is fixedly connected with the transmission rod (302), and the plurality of lock hook bodies (601) are symmetrically arranged on both sides of the wedge-shaped operating handle (903); A connecting block (902) is fixedly connected at one end of the wedge-shaped operating handle (903) and is connected at the other end with a limiting adjusting rod (901); The limiting adjusting rod (901) is telescopic relative to the connecting block (902) to adjust the maximum deflection angle of the wedge-shaped operating handle (903) and the transmission rod (302).

9. A pallet for automotive assembly comprising a pallet base (2), characterised in that, The tray base (2) is fixed on the rack (1); the rack (1) is provided with a plurality of clamping fixing modules (102) arranged in parallel; The bottom of the tray base (2) is provided with a plurality of supporting modules (202) which are inserted into the fixing insertion holes (1021) of the clamping fixing modules (102); The tray base (2) is provided with a plurality of clamping modules (201) at the corners, which are inserted into the fixing insertion holes (1021), and the bottom of the clamping module (201) is circumferentially provided with a matching structure with the positioning connecting hole (1022) and the positioning connecting groove (1023) in the clamping fixing module (102).

10. The pallet for automobile assembly as recited in claim 9, wherein The fulcrum assembly (4) comprises A supporting rod (401) is provided at the top with a positioning plug (4011) or a top block (4013) matched with the parts to be assembled, and a positioning pin hole (4012) is further arranged on the supporting rod (401) near the lower part of the positioning plug (4011) or the top block (4013); A connecting arm (402) is fixed on the insert assembly (5) through a plurality of oppositely arranged connecting pins (403) and positioning pins (404); the top of the connecting arm (402) is provided with a supporting rod plug (405) insertedly connected with the supporting rod (401).

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