Multifunctional jig for assembling tray on automobile chassis

Abstract

The utility model discloses a multifunctional jig for an automobile chassis combined tray, and belongs to the technical field of automobile chassis assembly. A positioning pin matched with the pin seat is arranged on the mounting plate, a plug seat male head matched with the plug seat female head is further arranged on the mounting plate, the lower mounting seat is fixed on the mounting plate, the upper mounting seat is fixed above the lower mounting seat, the shaft sleeve penetrates through an inner cavity formed by the upper mounting seat and the lower mounting seat, and pressure bearings which are distributed up and down are arranged in the inner cavity. The two pressure bearings are separated through a separation ring, the separation ring is fixed to the periphery of the shaft sleeve, radial gaps are formed between the shaft sleeve and the upper mounting base and between the shaft sleeve and the lower mounting base, and the tightening shaft penetrates through the shaft sleeve. The combined tray has the advantages that the position of the jig on the bottom plate of the combined tray is switched according to the positions of fulcrums and tightening points of vehicle chassis of different models, and compatibility of the vehicle chassis of different models is achieved.

Description

Technical Field

[0001] The utility model relates to a multifunctional fixture for an automotive chassis assembly pallet, belonging to the technical field of automotive chassis assembly. Background Art

[0002] An assembly pallet is a special pallet used for the assembly of modules and vehicle bodies in industries such as automotive manufacturing. The assembly pallet should have the functions of supporting products and tightening products. Since there are many vehicle models, the positions of the tightening points and supporting points corresponding to the chassis of each model are different. If an adapted assembly pallet is produced for each vehicle model, the production cost will be too high. Summary of the Utility Model

[0003] To solve the defects existing in the prior art, the purpose of the utility model is to provide a multifunctional fixture for an automotive chassis assembly pallet that reduces production costs. According to the different positions of the fulcrum and the tightening point, the position of the fixture on the bottom plate of the assembly pallet is switched to achieve compatibility with the chassis of different vehicle models.

[0004] The technical solution of the utility model is: a multifunctional fixture for an automotive chassis assembly pallet, including a mounting plate. A positioning pin cooperating with a pin seat is provided on the mounting plate, and a plug-in socket male head cooperating with a plug-in socket female head is also provided on the mounting plate. A lower mounting seat is fixed on the mounting plate, and an upper mounting seat is fixed above the lower mounting seat. A bushing penetrates through the inner cavity formed by the upper mounting seat and the lower mounting seat. Pressure bearings are arranged vertically in the inner cavity. The two pressure bearings are separated by a spacer ring, and the spacer ring is fixed on the outer periphery of the bushing. Radial gaps are provided between the bushing and both the upper mounting seat and the lower mounting seat. A tightening shaft penetrates through the bushing, and upper and lower tightening sleeves are respectively provided at the upper and lower ends of the tightening shaft. A spring a is sleeved on the tightening shaft at the top of the bushing. A limit retaining ring is provided at the top of the tightening shaft. The top end of the spring a abuts against the bottom of the limit retaining ring, and the bottom end of the spring a is connected to the bushing.

[0005] Both the pin seat and the plug-in socket female head are located on the bottom plate of the assembly pallet.

[0006] A locking switch for controlling the locking with the plug-in socket female head is provided on the plug-in socket male head. The locking switch is movably connected to a shoulder screw fixed on the plug-in socket male head. A spring b is sleeved on the outer periphery of the shoulder screw. The two ends of the spring b are respectively connected to the plug-in socket male head and the locking switch. The bottom of the locking switch is connected to a connecting rod, and a locking hook is provided at the bottom of the connecting rod. A locking groove cooperating with the locking hook is provided on the plug-in socket female head.

[0007] The top of the plug-in socket female head is fixed on the bottom plate of the assembly pallet through a flange.

[0008] Equal-height blocks are provided at the bottom of the mounting plate, and the height of the equal-height blocks is the same as the thickness of the flange.

[0009] A support seat is provided on the mounting plate.

[0010] The beneficial effects of the present utility model are as follows: According to the positions of the chassis fulcrums and tightening points of different vehicle models, the position of the jig on the bottom plate of the assembly tray is switched to achieve compatibility with different vehicle model chassis; through the cooperation of the positioning pin and the pin seat, and the cooperation of the male plug seat and the female plug seat, precise positioning of the jig on the bottom plate is achieved, ensuring accurate correspondence between the tightening point and the support point positions; by using the cooperation of the locking hook and the locking groove, the position of the jig after positioning is locked, improving the use stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a perspective view of the present utility model;

[0012] Figure 2 is a side view of the present utility model Figure 1 ;

[0013] Figure 3 is a side view of the present utility model Figure 2 ;

[0014] Figure 4 is a cross-sectional view of the present utility model;

[0015] Figure 5 is a bottom view of the present utility model;

[0016] Figure 6 is a view of the bottom plate of the assembly tray.

[0017] The reference numerals in the drawings are as follows: 1, mounting plate; 2, positioning pin; 3, tightening shaft; 4, upper tightening sleeve; 5, lower tightening sleeve; 6, bushing; 7, upper mounting seat; 8, lower mounting seat; 9, pressure bearing; 10, male plug seat; 11, female plug seat; 12, locking switch; 13, spring b; 14, equal-height block; 15, pin seat; 16, support seat; 17, shoulder screw; 18, connecting rod; 19, locking hook; 20, spacer ring; 21, limit retaining ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further describes the present utility model in conjunction with the attached Figures 1-6 drawings:

[0019] A multifunctional jig for an automotive chassis assembly pallet, comprising a mounting plate 1. A positioning pin 2 that cooperates with a pin seat 15 is provided on the mounting plate 1. A plug-in socket male head 10 that cooperates with a plug-in socket female head 11 is also provided on the mounting plate 1. The pin seat 15 and the plug-in socket female head 11 are both located on the bottom plate of the assembly pallet. A lower mounting seat 8 is fixed on the mounting plate 1, and an upper mounting seat 7 is fixed above the lower mounting seat 8. A bushing 6 passes through the inner cavity formed by the upper mounting seat 7 and the lower mounting seat 8. Pressure bearings 9 are arranged vertically in the inner cavity. The two pressure bearings 9 are separated by a spacer ring 20. The spacer ring 20 is fixed on the outer periphery of the bushing 6. Radial gaps are provided between the bushing 6 and the upper mounting seat 7 and the lower mounting seat 8 respectively. A tightening shaft 3 passes through the bushing 6. Upper and lower tightening sleeves 4 and 5 are respectively provided at the upper and lower ends of the tightening shaft 3. The upper tightening sleeve 4 is used to screw the bolts placed therein onto the vehicle body chassis. The lower tightening sleeve 5 is used to connect to a tightening gun and transmit the tightening force of the tightening gun. The radial gap can achieve fine adjustment of the lateral position of the upper tightening sleeve 4. When there is a slight error in the position of the bolt in the upper tightening sleeve 4 and the threaded hole on the vehicle body chassis, the lateral movement of the tightening sleeve 4 can correct the error to ensure the smooth screwing in of the bolt. The specific correction process is as follows: an annular guiding inclined surface is provided on the outer periphery of the bolt. When the bolt is not aligned with the threaded hole, the edge of the threaded hole contacts the annular guiding inclined surface, and the top of the bolt enters the threaded hole through the guiding action of the annular guiding inclined surface to achieve the normal screwing in of the bolt. A spring a is sleeved on the tightening shaft 3 at the top of the bushing 6. A limit retaining ring 21 is provided at the top of the tightening shaft 3. The top end of the spring a abuts against the bottom of the limit retaining ring 21, and the bottom end of the spring a is connected to the bushing 6. The tightening shaft 3 is in force balance under its own gravity and the elastic force of the spring a. In this state, the bushing 6 is located in the middle and lower part of the tightening shaft 3. A support seat 16 is provided on the mounting plate 1. The position of the support seat 16 corresponds to the position of the support point on the vehicle body chassis of the automobile, and is used to support the vehicle body chassis of the automobile.

[0020] A locking switch 12 for controlling the locking with the plug-in socket female head 11 is provided on the plug-in socket male head 10. The locking switch 12 is movably connected to a shoulder screw 17 fixed on the plug-in socket male head 10. A spring b 13 is sleeved on the outer periphery of the shoulder screw 17. The two ends of the spring b 13 are respectively connected to the plug-in socket male head 10 and the locking switch 12. The bottom of the locking switch 12 is connected to a connecting rod 18, and a locking hook 19 is provided at the bottom of the connecting rod 18. A locking groove that cooperates with the locking hook 19 is provided on the plug-in socket female head 11. In the natural state, the locking switch 12 is subjected to the rightward elastic force of the spring b 13, so that the locking hook 19 below the locking switch 12 hooks the locking groove, locking the plug-in socket male head 10 and the plug-in socket female head 11, and thus locking this jig to the bottom plate of the assembly pallet. When it is necessary to separate this jig, press the locking switch 12. The locking switch 12 drives the locking hook 19 at the bottom through the connecting rod 18 to separate from the locking groove, and then lift the plug-in socket male head 10, and the whole jig is separated from the bottom plate.

[0021] The top of the female connector socket 11 is fixed to the bottom plate of the combined tray through a flange. The bottom of the mounting plate 1 is provided with equal-height blocks 14. The height of the equal-height blocks 14 is the same as the thickness of the flange. The equal-height blocks 14 cooperate with the flange to support the mounting plate 1 on the bottom plate, making the mounting plate 1 parallel to the bottom plate.

[0022] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multifunctional jig for assembling pallets on automobile chassis, characterized in that: The invention comprises a mounting plate (1), wherein the mounting plate (1) is provided with a positioning pin (2) cooperating with a pin seat (15), and the mounting plate (1) is also provided with a plug-in seat male head (10) cooperating with a plug-in seat female head (11), a lower mounting seat (8) is fixed on the mounting plate (1), an upper mounting seat (7) is fixed above the lower mounting seat (8), a shaft sleeve (6) passes through an inner cavity formed by the upper mounting seat (7) and the lower mounting seat (8), and pressure bearings (9) distributed up and down are provided in the inner cavity, and the two pressure bearings (9) are separated by a separation ring (20), and the separation ring (20) is fixed on the outer periphery of the shaft sleeve (6). A radial gap is provided between the shaft sleeve (6) and the upper mounting seat (7) and the lower mounting seat (8); the tightening shaft (3) passes through the shaft sleeve (6); an upper tightening sleeve (4) and a lower tightening sleeve (5) are provided at the upper and lower ends of the tightening shaft (3); a spring a is sleeved on the tightening shaft (3) at the top of the shaft sleeve (6); a limit ring (21) is provided at the top of the tightening shaft (3); the top end of the spring a is pressed against the bottom of the limit ring (21); the bottom end of the spring a is connected to the shaft sleeve (6); the pin seat (15) and the female plug-in seat (11) are both located on the bottom plate of the assembly tray; and a support seat (16) is provided on the mounting plate (1).

2. The multifunctional jig for automobile chassis assembly pallet according to claim 1 is characterized in that: The plug socket male head (10) is provided with a locking switch (12) for controlling the locking with the plug socket female head (11); the locking switch (12) is movably connected to a shoulder screw (17) fixed on the plug socket male head (10); a spring b (13) is sleeved on the outer periphery of the shoulder screw (17); two ends of the spring b (13) are respectively connected to the plug socket male head (10) and the locking switch (12); the bottom of the locking switch (12) is connected to a connecting rod (18); a locking hook (19) is provided at the bottom of the connecting rod (18); and a locking groove matched with the locking hook (19) is provided on the plug socket female head (11).

3. The multifunctional jig for automobile chassis assembly pallet according to claim 1 is characterized in that: The top of the female plug socket (11) is fixed to the bottom plate of the assembly tray via a flange.

4. The multifunctional jig for assembling a pallet on a chassis of an automobile according to claim 1, characterized in that: A height-equalizing block (14) is provided at the bottom of the mounting plate (1), and the height of the height-equalizing block (14) is the same as the thickness of the flange.

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