Lifting type mounting device for assembling lower cross arm auxiliary seat

Abstract

The utility model discloses a lifting type mounting device for assembling a lower cross arm auxiliary seat. The lifting type mounting device comprises a bridge opening positioning disc, a guide device, a lower cross arm auxiliary seat positioning plate and a lifting device, the bridge hole positioning disc is fixed on a mounting seat of the lifting device, the guide device is mounted on the lifting device, the lower cross arm auxiliary seat positioning plate is connected with the guide device in an up-down sliding manner, and the lifting device controls the lower cross arm auxiliary seat positioning plate to move up and down. Lifting of the lower cross arm auxiliary seat is achieved through gear and rack transmission, stopping at different positions is achieved through the gear and rack transmission device and the positioning disc, a bottom deck can be trimmed at any time, the problem that an installation device is disassembled and assembled multiple times is solved, and falling is avoided. The device has the advantages of high production efficiency, firmness, durability, convenience in installation and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle body manufacturing, and in particular relates to a lifting installation device for assembling a lower cross arm attachment seat. Background Art

[0002] The existing 8×8 upgraded lower cross arm welding fixture is an integral welded structural part, consisting of a bridge hole positioning plate, a positioning pin, and a lower cross arm support positioning block, and is used for the assembly of the lower cross arm support of the 8×8 upgraded product.

[0003] The above-mentioned welding fixture is a fixed structure. During assembly, standard parts are first used to fix the lower cross arm attachment to the mounting device. If it is found during assembly that the installed lower cross arm attachment interferes with the vehicle body, it can only be removed, and the bottom deck must be cut and the above steps must be repeated. The process requires multiple disassembly and assembly, is labor-intensive, has low production efficiency, and is prone to the risk of falling and injuring people. Utility Model Content

[0004] The utility model provides a lifting installation device for assembling a lower cross arm attachment seat, and the technical problem to be solved is: solving the problem of multiple disassembly and installation of the lower cross arm attachment seat, and avoiding the problem of the lower cross arm falling.

[0005] In order to solve the above technical problems, the utility model provides a lifting installation device for assembling the lower cross arm attachment seat, which is characterized by: comprising a bridge hole positioning plate, a guide device, a lower cross arm attachment seat positioning plate and a lifting device; the bridge hole positioning plate is fixed on the mounting seat of the lifting device, the guide device is installed on the lifting device, the lower cross arm attachment seat positioning plate is connected to the guide device for up and down sliding, and the lifting device controls the up and down movement of the lower cross arm attachment seat positioning plate.

[0006] Beneficial effect: The utility model designs a lifting device that relies on gear rack transmission. The lifting device can be first fixed on the bridge hole of the 8×8 upgraded vehicle body through the bridge hole, and then the lower cross arm attachment seat is installed on the lifting device. The lower cross arm attachment seat is lifted and lowered by using a ratchet wrench through the symmetrical external hexagons on both sides. The lower cross arm attachment seat is stopped at different positions by the positioning plate, which is convenient for trimming the bottom deck at any time, avoiding the problem of multiple disassembly and installation of the device and avoiding falling. It has the advantages of high production efficiency, firmness and durability, and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic diagram of the planar structure of the utility model;

[0008] Figure 2 A three-dimensional diagram of the present invention. DETAILED DESCRIPTION

[0009] In order to make the purpose, content and advantages of the utility model clearer, the specific implementation methods of the utility model are further described in detail below.

[0010] The utility model proposes a lifting installation device for assembling a lower cross arm attachment seat, comprising a bridge hole positioning plate 1, a guide device 2, a lower cross arm attachment seat positioning plate 3 and a lifting device; the lifting device comprises a mounting seat, a transmission shaft 4.1, a limit plate 4.2, and a driving gear 4.3; the bridge hole positioning plate is fixed to the upper part of the mounting seat on the lifting device, the guide device 2 is installed on both sides of the mounting seat of the lifting device, the lower cross arm attachment seat positioning plate 3 is connected to the guide device 2, and the lifting device is used to realize the lifting movement of the lower cross arm attachment seat positioning plate relative to the bridge hole positioning plate.

[0011] The bridge hole positioning plate is used to position the installation device. It is a circular positioning platform with a diameter of Φ284 and a depth of 16. It is used to position the bridge hole of the vehicle body. The rotation of the positioning plate is limited by the Φ13.2 positioning pin on the positioning plate. A three-spoke pressure plate is used to achieve the fit between the positioning platform and the positioning surface of the bridge hole of the vehicle body.

[0012] The guide device is used to control the relative position between the lower cross arm attachment seat positioning plate and the positioning plate during movement, and includes two left and right guide columns, each of which is guided and limited by four guide seats.

[0013] The lower cross arm attachment seat positioning plate is used to connect with the lower cross arm attachment seat, and is connected with the M16 threaded holes on the lower cross arm attachment seat through four Φ20 bolt pins. The lower cross arm attachment seat positioning plate has a positioning seat that fits with the positioning surface of the lower cross arm attachment seat. The positioning plate has a guide seat that is used to connect with the guide device.

[0014] The mounting seat is a U-shaped frame structure, the limit plate 4.2 and the driving gear 4.3 are mounted on the mounting seat through the transmission shaft 4.1, the limit plate 4.2 is located on one side of the mounting seat, and the driving gear 4.3 is located in the U-shaped groove of the mounting seat; the transmission shaft 4.1 drives the driving gear to rotate. A plurality of limit holes are arranged on the limit plate.

[0015] The transmission shaft 4.1 is used to fix the driving gear 4.3 and the limit plate 4.2, and both ends are regular hexagonal structures, which is convenient for the use of the ratchet wrench.

[0016] The limit plate 4.2 is used to realize the suspension of the lower cross arm attachment seat positioning plate at different height positions of the lower cross arm attachment seat positioning plate, so as to facilitate the matching cutting and matching grinding of the relevant positions of the bottom deck according to different positions, and ensure the reasonable assembly gap between the lower cross arm attachment seat positioning plate and the bottom deck.

[0017] The driving gear 4.3 uses an involute gear with a module of 3, a number of teeth of 90, and a pitch circle of Φ297 as the driving gear, which is meshed with two parallel racks installed on the lower cross arm attachment seat positioning plate to realize the up and down movement of the lower cross arm attachment seat positioning plate.

[0018] When in use, firstly connect the bridge hole positioning plate 1 with the bridge hole of the vehicle body. Use the lifting device to lower the lower cross arm attachment seat positioning plate 3 to the lowest position, use the ratchet wrench to rotate the two ends of the transmission shaft 4.1, and lift the lower cross arm attachment seat positioning plate upward through the gear rack. During the process, use any position of the limit plate according to the actual situation to meet the matching and repairing in the assembly process. Finally, the assembly of the lower cross arm mounting seat is realized.

[0019] The invention has the advantage that the positioning plate of the lower cross arm attachment seat can be stopped at different positions, which is convenient for trimming the bottom deck at any time, avoiding the problem of multiple disassembly and assembly of the installation device and preventing the occurrence of falling, thereby improving the efficiency and intrinsic safety of the installation of the lower cross arm attachment seat.

[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A lifting installation device for assembling a lower cross arm attachment seat, characterized in that: It includes a bridge hole positioning plate, a guide device, a lower cross arm seat positioning plate and a lifting device; the bridge hole positioning plate is fixed on the mounting seat of the lifting device, the guide device is installed on the lifting device, the lower cross arm seat positioning plate is slidably connected to the guide device up and down, and the lifting device controls the lower cross arm seat positioning plate to move up and down.

2. A lifting installation device for lower cross arm attachment assembly according to claim 1, characterized in that: Bridge hole positioning plate circular positioning table.

3. A lifting installation device for lower cross arm attachment assembly according to claim 1, characterized in that: The bridge hole positioning plate is positioned and connected with the bridge hole of the vehicle body.

4. A lifting installation device for lower cross arm attachment assembly according to claim 1, characterized in that: The guide device comprises two left and right guide posts which are respectively fixed on the left and right sides of the lifting device.

5. The lifting installation device for lower cross arm attachment assembly according to claim 1, characterized in that: The lower cross arm attachment seat positioning plate is used for fixed connection with the lower cross arm attachment seat.

6. A lifting installation device for lower cross arm attachment assembly according to claim 5, characterized in that: A positioning seat is arranged on the positioning plate of the lower cross arm attachment seat and is fitted with the positioning surface of the lower cross arm attachment seat.

7. A lifting installation device for lower cross arm attachment assembly according to claim 1, characterized in that: The lifting device includes a mounting seat, a transmission shaft, a limit plate, and a driving gear; the limit plate and the driving gear are installed on the mounting seat through the transmission shaft, the limit plate is located on one side of the mounting seat, and the driving gear is located in the U-shaped groove of the mounting seat; the transmission shaft drives the driving gear to rotate, and the driving gear is meshed with the rack on the positioning plate of the lower cross arm attachment seat.

8. A lifting installation device for lower cross arm attachment assembly according to claim 7, characterized in that: The limiting plate is provided with a plurality of limiting holes.

9. The lifting installation device for lower cross arm attachment assembly according to claim 7, characterized in that: The mounting base is a U-shaped frame structure.

10. The lifting installation device for lower cross arm attachment assembly according to claim 7, characterized in that: The driving gear adopts involute gear.

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