Car door assembling clamp

Abstract

The utility model discloses a vehicle door assembling clamp which comprises a Z-axis steering mechanism, an arch-shaped frame body, a Y-axis steering mechanism, an X-axis steering mechanism, a door connecting plate and an air suction cup. When in use, the clamp is rigidly fixed on a gantry truss structure, so that the clamp can move in three degrees of freedom; the car door is adsorbed to the clamp through an air suction cup, and the car door and the door frame are completely attached and aligned in a self-adaptive mode through a universal structure on the clamp. After the spatial position of the vehicle door is determined, the universal structure is locked by using a pneumatic locking function on the clamp, so that the position change of the vehicle door caused by stress in the process of mounting a hinge or other parts is avoided. The vehicle door assembling tool has the advantages of being simple in structure, convenient to operate, high in assembling precision, capable of achieving single-person operation of vehicle door assembling, high in production efficiency, good in vehicle door sealing performance after assembling, good in appearance quality and the like.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle assembly technology, specifically relating to a door assembly fixture. Background Technology

[0002] Car door assembly involves gripping and aligning the door to the door frame before securing it with hinges. The assembled door must possess good sealing and aesthetic quality. Sealing quality refers to the degree of isolation between the inside and outside of the door, i.e., the fit between the assembled door and the door frame. Aesthetic quality is primarily reflected in the uniformity of the gaps between the assembled door and the door frame around its perimeter. Existing door assembly methods are generally divided into two categories: lifting and hoisting. Lifting methods use a hoisting mechanism to grip and align the door, while hoisting methods use a lifting mechanism.

[0003] Since most vehicle door frames are not vertical or horizontal, and the contact surface between the door frame and the door is curved in some vehicles, to ensure good sealing and appearance quality after assembly, the door assembly process requires adjusting the door position not only in three degrees of movement freedom but also in one or more rotational degrees of freedom. Therefore, using existing lifting-type assembly methods often makes it difficult to simultaneously achieve a perfect fit between the door and the door frame and uniform gaps around the perimeter. If a lifting-type assembly method is used, meeting these requirements would necessitate the design and manufacture of a highly automated lifting mechanism, which is economical and requires high consistency in the spatial position of the door frame during mass production. Utility Model Content

[0004] This utility model provides a car door assembly fixture, and the technical problem to be solved is: to solve the problem that existing hoisting assembly schemes are always difficult to simultaneously satisfy the problem of the car door and the door frame being completely fitted and the gaps around them being uniform and consistent during the specific operation process.

[0005] To solve the above technical problems, this utility model provides a car door assembly fixture, characterized in that it includes a Z-axis steering mechanism 1, an arched frame 2, a Y-axis steering mechanism 3, an X-axis steering mechanism 4, a door connecting plate 5, and an air suction cup 6; the Z-axis steering mechanism 1, the arched frame 2, the Y-axis steering mechanism 3, and the X-axis steering mechanism 4 are connected in sequence, the door connecting plate 5 is fixed on the X-axis steering mechanism, and the air suction cup 6 is disposed on one side of the door connecting plate 5; the Y-axis steering mechanism 3 is rotatably connected to the bottom of the arched frame 2, the X-axis steering mechanism 4 is rotatably connected to the Y-axis steering mechanism 3, and the top of the arched frame 2 is fixedly connected to the stepped shaft of the Z-axis steering mechanism 1.

[0006] Furthermore, the car door adheres to the air suction cup.

[0007] Furthermore, the Z-axis steering mechanism 1 is fixed to the gantry truss structure.

[0008] Furthermore, the Z-axis steering mechanism 1 is provided with a first friction plate 105 and a first pneumatic brake 102 for locking the stepped shaft fixed on the first friction plate 105.

[0009] Furthermore, the Z-axis steering mechanism 1 includes a first connecting plate 101, a first pneumatic brake 102, a stepped shaft 103, and a first friction plate 105. A first pneumatic brake 102 is fixedly installed on the left and right sides below the first connecting plate 101, and the stepped shaft 103 passes through the hole on the first connecting plate 101 and is fixedly connected to the first friction plate 105, so that the stepped shaft 103 rotates in the hole of the first connecting plate 101. The first friction plate 105 is disposed between the two first pneumatic brakes 102. When the first pneumatic brake clamps the first friction plate 105, the stepped shaft, i.e., the Z-axis, is locked in rotation.

[0010] Furthermore, the bow-shaped frame 2 is provided with a second pneumatic brake 205, which is used to cooperate and lock with the second friction plate 305 on the Y-axis steering mechanism 3. The Y-axis steering mechanism 3 is provided with a third pneumatic brake 306, which is used to cooperate and lock with the third friction plate 402 on the X-axis steering mechanism 4.

[0011] Furthermore, the bow-shaped frame 2 includes a connecting block 201, a top plate 202, bow-shaped plates 203, and a second pneumatic brake 205; the connecting block 201 is fixed on the top plate 202, the two bow-shaped plates 203 are symmetrically fixed on both sides of the top plate, a round tube 204 is fixed between the two bow-shaped plates 203, the second pneumatic brake 205 is fastened to the lower end of the bow-shaped plate 203 for locking the Y-axis rotation, and the flange 206 passes through the lowest round tube 204 and is fastened to the bow-shaped plate 203.

[0012] Furthermore, the upper part of the bow-shaped frame 2 is fixedly connected to the first friction plate 105 via a connecting block 201, so that the step axis and the bow-shaped frame 2 rotate together along the Z-axis.

[0013] Furthermore, the Y-axis steering mechanism 3 includes a side plate, a long web plate 302, a short web plate 303, a second connecting plate 304, a second friction plate 305, and a third pneumatic brake 306. The two side plates are connected and fastened by the long web plate 302 and the short web plate 303. The second connecting plate 304 is installed on one of the side plates, the second friction plate 305 is installed on the second connecting plate 304, and the third pneumatic brake 306 is installed on the long web plate 302. The two side plates 301 in the Y-axis steering mechanism 3 are passed through a circular tube 204 at the bottom of the bow-shaped frame 2, so that the Y-axis steering mechanism 3 can rotate around the circular tube 204. When the second pneumatic brake 205 clamps the second friction plate 305, the Y-axis rotation locking can be achieved.

[0014] Furthermore, the X-axis steering mechanism 4 includes a flange shaft 401 and a third friction plate 402; the flange shaft 401 is rotatably connected to the Y-axis steering mechanism 3; the third friction plate 402 is fastened to the flange shaft 401, and the X-axis rotation is locked by clamping the third friction plate 402 through the third pneumatic brake 306 of the Y-axis steering mechanism 3.

[0015] Beneficial Effects: This invention rigidly fixes the upper end of the clamp to the gantry structure, and the car door is fixed to the clamp. A servo motor on the gantry structure drives the clamp to move and fine-tune along three degrees of freedom. The universal joint on the clamp achieves perfectly adaptive fitting and alignment between the car door and the door frame. Once the car door's spatial position is determined, the pneumatic locking function on the clamp locks the universal joint, preventing changes in the car door's position due to force during hinge or other component installation. This invention features a simple structure, convenient operation, and high assembly precision. It allows for single-person operation of car door assembly and also offers advantages such as high production efficiency, excellent sealing of the assembled car door, and good appearance quality. Attached Figure Description

[0016] Figure 1 This is the front view of the utility model.

[0017] Figure 2 This is a rear view of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a schematic diagram of the Z-axis steering mechanism;

[0020] Figure 5 This is a schematic diagram of an arc-shaped frame;

[0021] Figure 6 This is a schematic diagram of the Y-axis steering mechanism;

[0022] Figure 7 This is a schematic diagram of the X-axis steering mechanism.

[0023] Wherein: 1—Z-axis steering mechanism, 2—bow-shaped frame, 3—Y-axis steering mechanism, 4—X-axis steering mechanism, 5—door connecting plate, 6—air suction cup; 101—connecting plate, 102—pneumatic brake, 103—stepped shaft; 104—shaft sleeve, 105—friction plate, 106—flange; 201—connecting block, 202—top plate, 203—bow-shaped plate; 204—round pipe, 205—pneumatic brake, 206—flange; 301—side plate, 302—long web plate, 303—short web plate, 304—connecting plate, 305—friction plate, 306—pneumatic brake; 401—flange shaft, 402—friction plate, 403—ball bearing; 404—lock nut. Detailed Implementation

[0024] To make the purpose, content and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below.

[0025] The present invention proposes a door assembly fixture, comprising a Z-axis steering mechanism 1, an arched frame 2, a Y-axis steering mechanism 3, an X-axis steering mechanism 4, a door connecting plate 5, and an air suction cup 6;

[0026] During use, the clamp is rigidly fixed to the gantry truss structure, allowing the clamp to move in three degrees of freedom. The car door is attached to the clamp using an air suction cup, and the universal structure on the clamp enables the car door to fully self-adaptively fit and align with the door frame.

[0027] The Z-axis steering mechanism 1 is fixed to the gantry truss structure via a connecting plate 101 to achieve a rigid connection. The Z-axis steering mechanism 1 includes a connecting plate 101, a first pneumatic brake 102, a stepped shaft 103, a bushing 104, a first friction plate 105, and a flange 106.

[0028] A first pneumatic brake 102 is fixedly installed on the left and right sides below the connecting plate 101. The stepped shaft 103 passes through the hole on the connecting plate 101 and is fixedly connected to the bushing 104, the first friction plate 105, and the flange 106 by bolts, so that the stepped shaft 103 can rotate in the hole of the connecting plate 101. The first friction plate 105 is set between the two first pneumatic brakes 102. When the pneumatic brake clamps the first friction plate 105, the stepped shaft, i.e., the Z-axis rotation, can be locked.

[0029] The upper part of the bow-shaped frame 2 is fixed to the first friction plate 105 by two connecting blocks 201, so that the stepped shaft and the bow-shaped frame 2 can rotate together along the Z-axis.

[0030] The bow-shaped frame 2 includes a connecting block 201, a top plate 202, a bow-shaped plate 203, a circular tube 204, and a second pneumatic brake 205;

[0031] The connecting blocks 201 (two pieces) are bolted to the top plate 202. The bow-shaped plates 203 (two pieces) are connected through the top plate 202 and the round tubes 204 (three pieces). The second pneumatic brake 205 is bolted to the lower end of the bow-shaped plates 203 for locking the Y-axis rotation. The flanges 206 (two pieces) pass through the lowest round tube 204 and are fastened to the bow-shaped plates 203.

[0032] The Y-axis steering mechanism 3 is connected to the lowermost circular tube 204 of the bow-shaped frame 2 and rotates around it.

[0033] The Y-axis steering mechanism 3 includes a side plate 301, a long web plate 302, a short web plate 303, a connecting plate 304, a second friction plate 305, and a third pneumatic brake 306.

[0034] The two side plates 301 are connected and fastened by the long web plate 302 and the short web plate 303. The connecting plate 304 is installed on the side plate 301, the second friction plate 305 is installed on the connecting plate 304, and the third pneumatic brake 306 is installed on the long web plate 302. The two side plates 301 in the Y-axis steering mechanism 3 are passed through the lowest circular tube 204 of the bow-shaped frame 2, so that the Y-axis steering mechanism 3 can rotate around the circular tube 204. When the second pneumatic brake 205 clamps the second friction plate 305, the Y-axis rotation locking can be achieved.

[0035] The flange shaft 401 on the X-axis steering mechanism 4 passes through the round holes on the long web 302 and the short web 303 and is bolted to the door connecting plate 5, so that the X-axis steering mechanism drives the door connecting plate 5 to rotate along the X-axis.

[0036] The X-axis steering mechanism 4 includes a flange shaft 401, a third friction plate 402, and a ball bearing 403;

[0037] Two ball bearings 403 are inserted into the flange shaft 401 and installed into the holes of the long web 302 and the short web 303 respectively. Two anti-loosening nuts 404 are installed at the end of the flange shaft 401 to prevent them from falling off. The third friction plate 402 is bolted to the flange shaft 401. When the X-axis steering mechanism 4 rotates in the holes of the long web 302 and the short web 303, the X-axis rotation can be locked by clamping the third friction plate 402 with the third pneumatic brake 306.

[0038] The above method enables the fixture to rotate omnidirectionally with the car door and for the car door to self-adaptively fit and align with the door frame. Once the spatial position of the car door is determined, the pneumatic brake and friction plate on the fixture are used to simultaneously lock the three rotational degrees of freedom, preventing changes in the assembly position of the car door due to stress during the installation of hinges and other parts.

[0039] This assembly fixture is suitable for automated assembly of car doors. It needs to be rigidly fixed to the gantry structure to achieve adjustment of the car door position in three degrees of freedom of movement.

[0040] This assembly fixture uses a universal structure to achieve a completely adaptive fit and alignment between the door and the door frame, ensuring the door's sealing and appearance quality.

[0041] This assembly fixture can lock the universal structure with a pneumatic locking function to prevent the door assembly position from changing due to force during the installation of hinges or other parts.

[0042] The advantages of this invention lie in its use of a universal joint structure on the fixture to achieve a completely self-adaptive fit between the car door and the door frame. Once the spatial position of the car door is determined, the pneumatic locking function on the fixture can be used to lock the universal joint structure, preventing changes in the car door position due to force during the installation of hinges or other parts. Furthermore, this invention features a simple structure, convenient operation, and high assembly precision. It allows for single-person operation of car door assembly and also offers advantages such as high production efficiency, excellent sealing of the assembled car door, and good appearance quality.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A door assembly fixture, characterized in that: It includes a Z-axis steering mechanism (1), an arched frame (2), a Y-axis steering mechanism (3), an X-axis steering mechanism (4), a door connecting plate (5), and an air suction cup (6); the Z-axis steering mechanism (1), the arched frame (2), the Y-axis steering mechanism (3), and the X-axis steering mechanism (4) are connected in sequence, the door connecting plate (5) is fixed on the X-axis steering mechanism, and the air suction cup (6) is set on one side of the door connecting plate (5); the Y-axis steering mechanism (3) is rotatably connected to the bottom of the arched frame (2), the X-axis steering mechanism (4) is rotatably connected to the Y-axis steering mechanism (3), and the top of the arched frame (2) is fixedly connected to the step shaft of the Z-axis steering mechanism (1).

2. The door assembly fixture according to claim 1, characterized in that: The car door is attached to the air suction cup.

3. A door assembly fixture according to claim 1, characterized in that: The Z-axis steering mechanism (1) is fixed on the gantry truss structure.

4. A door assembly fixture according to claim 1, characterized in that: The Z-axis steering mechanism (1) is provided with a first friction plate (105) and a first pneumatic brake (102) for locking the stepped shaft fixed on the first friction plate (105).

5. A door assembly fixture according to claim 1, characterized in that: The Z-axis steering mechanism (1) includes a first connecting plate (101), a first pneumatic brake (102), a stepped shaft (103), and a first friction plate (105). A first pneumatic brake (102) is fixedly installed on the left and right sides below the first connecting plate (101). The stepped shaft (103) passes through the hole on the first connecting plate (101) and is fixedly connected to the first friction plate (105), so that the stepped shaft (103) rotates in the hole of the first connecting plate (101). The first friction plate (105) is set between the two first pneumatic brakes (102). When the first pneumatic brake clamps the first friction plate (105), the stepped shaft, i.e., the Z-axis, is locked.

6. A door assembly fixture according to claim 4, characterized in that: The bow-shaped frame (2) is equipped with a second pneumatic brake (205) for locking with the second friction plate (305) on the Y-axis steering mechanism (3). The Y-axis steering mechanism (3) is equipped with a third pneumatic brake (306) for locking with the third friction plate (402) on the X-axis steering mechanism (4).

7. A door assembly fixture according to claim 6, characterized in that: The bow-shaped frame (2) includes a connecting block (201), a top plate (202), bow-shaped plates (203), and a second pneumatic brake (205). The connecting block (201) is fixed on the top plate (202), and the two bow-shaped plates (203) are symmetrically fixed on both sides of the top plate. A round tube (204) is fixed between the two bow-shaped plates (203). The second pneumatic brake (205) is fastened to the lower end of the bow-shaped plate (203) for locking the Y-axis rotation. The flange (206) passes through the lowest round tube (204) and is fastened to the bow-shaped plate (203).

8. A door assembly fixture according to claim 1, characterized in that: The bow-shaped frame (2) is fixedly connected to the first friction plate (105) via a connecting block (201) above, so that the step axis and the bow-shaped frame (2) can rotate together along the Z-axis.

9. A door assembly fixture according to claim 1, characterized in that: The Y-axis steering mechanism (3) includes a side plate, a long web plate (302), a short web plate (303), a second connecting plate (304), a second friction plate (305), and a third pneumatic brake (306). The two side plates are connected and fastened by the long web plate (302) and the short web plate (303). The second connecting plate (304) is installed on one of the side plates, the second friction plate (305) is installed on the second connecting plate (304), and the third pneumatic brake (306) is installed on the long web plate (302). The two side plates (301) in the Y-axis steering mechanism (3) are passed through a round tube (204) at the bottom of the bow-shaped frame (2), so that the Y-axis steering mechanism (3) can rotate around the round tube (204). When the second pneumatic brake (205) clamps the second friction plate (305), the Y-axis rotation locking can be realized.

10. A door assembly fixture according to claim 1, characterized in that: The X-axis steering mechanism (4) includes a flange shaft (401) and a third friction plate (402); the flange shaft (401) is rotatably connected to the Y-axis steering mechanism (3); the third friction plate (402) is fastened to the flange shaft (401), and the X-axis rotation is locked by clamping the third friction plate (402) through the third pneumatic brake (306) of the Y-axis steering mechanism (3).

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