A positioning and drilling device for automotive door inner panel

Abstract

This utility model relates to the field of automotive parts processing technology, and in particular to a positioning and drilling device for an automotive door inner panel. It includes a base plate, a connecting frame, a robotic arm, a drill, a clamping assembly, an adjusting assembly, and a moving assembly. A connecting frame is located on one side of the base plate, and a robotic arm is located above the connecting frame. A drill is located at one end of the robotic arm. Two sets of clamping assemblies are located above the base plate, and two sets of adjusting assemblies are located on one side of the base plate. A moving assembly is located on one side of the connecting frame. The clamping assembly includes a moving frame, a fixed frame, a first threaded rod, a first ball joint, a first pressure block, a first flexible pad, a first handle, a first lead screw, a lifting frame, a second threaded rod, a second ball joint, a second pressure block, and a second flexible pad. This utility model, through its ball joint structure, can adaptively conform to the surface of the automotive door inner panel when drilling and fixing it, solving the problem of inaccuracy in rigid positioning on curved surfaces and deformable parts.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a positioning and drilling device for automotive door inner panel. Background Technology

[0002] The interior door panel is an important component of the automotive interior system, and its installation accuracy directly affects the door assembly quality, sealing performance, and overall appearance. During the automotive manufacturing process, the interior door panel needs to be connected to the door frame through multiple positioning holes. Therefore, the accuracy and reliability of the positioning and drilling process are crucial. Existing automotive interior door panel positioning and drilling devices typically employ rigid positioning structures, such as fixed positioning pins or mechanical claws, to fix the panel through pre-set positioning holes or planar contact. These devices are effective in processing panels with regular planes or simple contours. However, as automotive design moves towards lightweighting and complex curved surfaces, the shapes of interior door panels are becoming increasingly complex, and traditional rigid positioning methods are gradually revealing their inadequacy.

[0003] Existing positioning and drilling devices mainly rely on the direct contact between rigid positioning elements and the guard plate for fixation. For example, positioning pins need to be inserted into pre-set positioning holes in the guard plate, while claws complete positioning by clamping the planar area of ​​the guard plate edge. However, automotive door guard plates are usually thin-walled parts with complex 3D contours such as curved surfaces, flanges, and non-standard edges. These structural features make the guard plate prone to slight deformation during storage or transportation. Traditional rigid positioning pins or claws are difficult to effectively fit such complex contours: positioning pins are prone to insertion difficulties or loose fit due to guard plate deformation or positioning hole machining errors, resulting in inconsistent positioning references; the clamping force of the claws is concentrated on a local plane of the guard plate edge, which has poor adaptability to curved surfaces or non-standard edges. It not only fails to provide stable positioning support, but may also damage the guard plate surface due to excessive clamping force.

[0004] Therefore, to address the above problems, a positioning and drilling device for the inner panel of a car door is proposed. By using a ball joint structure, the device can adaptively fit the surface of the inner panel when drilling and fixing it, thus solving the problem of inaccuracy of rigid positioning on curved surfaces and deformable parts. Utility Model Content

[0005] In order to overcome the problem that the traditional car door panel positioning and drilling device has difficulty in effectively fitting the complex 3D contours of different models of panels on curved surfaces, flanges or non-standard edges, resulting in inconsistent positioning references, unreliability or easy damage to the panel surface.

[0006] The technical solution of this utility model is as follows: a positioning and drilling device for an inner panel of an automobile door, comprising a base plate, a connecting frame, a robotic arm, a drill, a clamping assembly, an adjusting assembly, and a moving assembly. A connecting frame is provided on one side of the base plate, and a robotic arm is provided above the connecting frame. A drill is provided at one end of the robotic arm. Two sets of clamping assemblies are provided above the base plate, and two sets of adjusting assemblies are provided on one side of the base plate. A moving assembly is provided on one side of the connecting frame. The clamping assembly includes a moving frame, a fixed frame, a first threaded rod, a first ball joint, a first pressure block, a first flexible pad, a first handle, a first lead screw, a lifting frame, a second threaded rod, a second ball joint, a second pressure block, and a second flexible pad. A movable frame is provided above the plate, and a fixed frame is provided above the movable frame. Two sets of first threaded rods are provided on the inner side of the fixed frame. The first threaded rods are threadedly connected to the fixed frame. A first ball joint is provided at the upper end of the first threaded rod. A first pressure block is provided above the first ball joint. A first flexible pad is provided above the first pressure block. A first handle is provided above the movable frame. A first lead screw is provided below the first handle. A lifting frame is threadedly connected to the outer side of the first lead screw. Two sets of second threaded rods are threadedly connected to the inner side of the lifting frame. A second ball joint is provided at the lower end of the second threaded rod. A second pressure block is provided below the second ball joint. A second flexible pad is provided below the second pressure block.

[0007] Preferably, by adjusting the positions of the two sets of movable frames to adapt to the size of the car door inner panel, the first pressure block and the first flexible pad are brought into contact with the lower surface of the car door inner panel by rotating the first threaded rod to provide support. The first ball joint allows the first pressure block to rotate freely to adapt to the irregular surface of the car door inner panel. The first screw is rotated by rotating the first handle, which in turn drives the lifting frame to move up and down to adjust the height of the second pressure block and the second flexible pad. The height of each set of second pressure blocks and the second flexible pad is adjusted by rotating the second threaded rod. The second ball joint allows the second pressure block to rotate freely, thereby adapting the second flexible pad to the upper surface of the car door panel. The second threaded rod is then rotated to clamp and fix the car door inner panel. This device, through the ball joint structure, can adaptively fit the surface of the panel when drilling and fixing the car door inner panel, solving the problem of inaccuracy of rigid positioning on curved surfaces and deformable parts.

[0008] Preferably, the adjustment assembly includes a first motor and a second lead screw. The first motor is provided on one side of the base plate, and the second lead screw is provided at the output end of the first motor. The second lead screw is threadedly connected to the moving frame.

[0009] Preferably, the moving component includes a second motor and a third lead screw, with the second motor located on one side of the connecting frame and the third lead screw located at the output end of the second motor.

[0010] Preferably, the moving component also includes a moving block, which is threadedly connected to the outer side of the third lead screw, and the moving block and the robotic arm are interconnected.

[0011] Preferably, a fixing plate is provided on one side of the drilling rig, and multiple sets of fixing plates are provided. A telescopic rod is provided below the fixing plate, and a connecting plate is provided at the lower end of the telescopic rod.

[0012] Preferably, a rigid spring is provided on the outer side of the telescopic rod, with a connecting plate and a fixing plate connected to both ends of the rigid spring, and a third ball joint is provided below the connecting plate.

[0013] Preferably, a third pressure block is provided below the third ball joint, and a third flexible pad is provided below the third pressure block.

[0014] The beneficial effects of this utility model are:

[0015] By adjusting the positions of the two sets of moving frames to adapt to the size of the car door inner panel, the first pressure block and the first flexible pad are brought into contact with the lower surface of the car door inner panel by rotating the first threaded rod to provide support. The first ball joint allows the first pressure block to rotate freely to adapt to the irregular surface of the car door inner panel. The first screw is rotated by rotating the first handle, which in turn drives the lifting frame to move up and down to adjust the height of the second pressure block and the second flexible pad. The height of each set of the second pressure block and the second flexible pad is adjusted by rotating the second threaded rod. The second ball joint allows the second pressure block to rotate freely, so that the second flexible pad adapts to the upper surface of the car door inner panel. The second threaded rod is then rotated to clamp and fix the car door inner panel. This device, through the ball joint structure, can adaptively fit the surface of the inner panel when drilling and fixing it, solving the problem of inaccuracy of rigid positioning on curved surfaces and deformable parts. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the positioning and drilling device for the inner panel of a car door according to this utility model.

[0017] Figure 2 The diagram shown is a first cross-sectional view of the positioning and drilling device for the inner panel of a car door according to this utility model.

[0018] Figure 3 The diagram shown is a second cross-sectional view of the positioning and drilling device for the inner panel of a car door according to this utility model.

[0019] Figure 4 The diagram shown is a partial cross-sectional view of the positioning and drilling device for the inner panel of a car door according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Connecting frame; 3. Mechanical arm; 4. Drilling rig; 101. Moving frame; 102. Fixed frame; 103. First threaded rod; 104. First ball joint; 105. First pressure block; 106. First flexible pad; 107. First handle; 108. First lead screw; 109. Lifting frame; 110. Second threaded rod; 111. Second ball joint; 112. Second pressure block; 113. Second flexible pad; 201. First motor; 202. Second lead screw; 301. Second motor; 302. Third lead screw; 303. Moving block; 401. Fixed plate; 402. Telescopic rod; 403. Connecting plate; 404. Rigid spring; 405. Third ball joint; 406. Third pressure block; 407. Third flexible pad. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 and Figure 2This utility model provides an embodiment: a positioning and drilling device for an automotive door inner panel, comprising a base plate 1, a connecting frame 2, a robotic arm 3, a drill 4, a clamping assembly, an adjusting assembly, and a moving assembly. The connecting frame 2 is disposed on one side of the base plate 1, and the robotic arm 3 is disposed above the connecting frame 2. The drill 4 is disposed at one end of the robotic arm 3. Two sets of clamping assemblies are disposed above the base plate 1, and two sets of adjusting assemblies are disposed on one side of the base plate 1. A moving assembly is disposed on one side of the connecting frame 2. The clamping assembly includes a moving frame 101, a fixed frame 102, a first threaded rod 103, a first ball joint 104, a first pressure block 105, a first flexible pad 106, and a first handle 107. The system includes a first lead screw 108, a lifting frame 109, a second threaded rod 110, a second ball joint 111, a second pressure block 112, and a second flexible pad 113. A movable frame 101 is mounted above the base plate 1. A fixed frame 102 is mounted above the movable frame 101. Two sets of first threaded rods 103 are mounted on the inner side of the fixed frame 102, and the first threaded rods 103 are threadedly connected to the fixed frame 102. A first ball joint 104 is mounted at the upper end of the first threaded rod 103. A first pressure block 105 is mounted above the first ball joint 104. A first flexible pad 106 is mounted above the first pressure block 105. A first handle 107 is mounted above the movable frame 101. Below the 7th component, a first lead screw 108 is provided. A lifting frame 109 is threadedly connected to the outer side of the first lead screw 108. Two sets of second threaded rods 110 are threadedly connected to the inner side of the lifting frame 109. A second ball joint 111 is provided at the lower end of the second threaded rod 110. A second pressure block 112 is provided below the second ball joint 111. A second flexible pad 113 is provided below the second pressure block 112. By adjusting the positions of the two sets of moving frames 101, the dimensions of the inner panel of the car door are adapted. By rotating the first threaded rod 103, the first pressure block 105 and the first flexible pad 106 are brought into contact with the lower surface of the inner panel of the car door to provide support. The first ball joint 104 allows the first pressure block 105 and the first flexible pad 106 to contact the lower surface of the inner panel of the car door to provide support. Block 105 can rotate freely to adapt to the irregular surface of the car door inner panel. By rotating the first handle 107, the first lead screw 108 is driven to rotate. The rotation of the first lead screw 108 drives the lifting frame 109 to move up and down, adjusting the height of the second pressure block 112 and the second flexible pad 113. By rotating the second threaded rod 110, the height of each set of second pressure blocks 112 and second flexible pads 113 is adjusted respectively. The second ball joint 111 allows the second pressure block 112 to rotate freely, thereby allowing the second flexible pad 113 to adapt to the upper surface of the car door panel. Continuing to rotate the second threaded rod 110 causes the first pressure block 105 and the second pressure block 112 to clamp and fix the car door inner panel.

[0023] Please see Figure 3 and Figure 4In this embodiment, the adjustment component includes a first motor 201 and a second lead screw 202. The first motor 201 is provided on one side of the base plate 1, and the second lead screw 202 is provided at the output end of the first motor 201. The second lead screw 202 is threadedly connected to the moving frame 101. In use, the first motor 201 is started to drive the second lead screw 202 to rotate, and the rotation of the second lead screw 202 drives the moving frame 101 to move linearly, thereby adjusting the position of the moving frame 101. The moving component includes a second motor 301 and a third lead screw 302. The second motor 301 is provided on one side of the connecting frame 2, and the third lead screw 302 is provided at the output end of the second motor 301. The moving component also includes a moving block 303. The moving block 303 is threadedly connected to the outer side of the third lead screw 302. The moving block 303 is connected to the robotic arm 3. In use, the second motor 301 is started to drive the third lead screw 302 to rotate, and the rotation of the third lead screw 302 drives the moving block 303 to move linearly, thereby adjusting the position of the robotic arm 3.

[0024] A fixed plate 401 is provided on one side of the drilling rig 4. Multiple sets of fixed plates 401 are provided. A telescopic rod 402 is provided below the fixed plate 401. A connecting plate 403 is provided at the lower end of the telescopic rod 402. A rigid spring 404 is provided on the outer side of the telescopic rod 402. The two ends of the rigid spring 404 are connected to the connecting plate 403 and the fixed plate 401 respectively. A third ball joint 405 is provided below the connecting plate 403. A third pressure block 406 is provided below the third ball joint 405. A third flexible pad 407 is provided below the third pressure block 406. During use, when the drill bit of the drilling rig 4 approaches the workpiece surface, the third flexible pad 407 and the drill bit contact the inner protective plate before the drill bit, applying a local clamping force perpendicular to the surface of the inner protective plate. During drilling, the local clamping force counteracts the downward pressure of the drill bit, preventing the protective plate from deforming downwards under the drill bit pressure. It also increases the local rigidity of the guard plate, reduces the slight movement of the workpiece caused by drilling vibration, especially in thin-walled or edge areas, and can prevent the material from tearing and producing excessive burrs at the moment of drilling through.

[0025] During the operation, firstly, according to the size of the inner door panel to be processed, the distance between the two sets of moving frames 101 is adjusted by adjusting the components; then, the first motor 201 on one side of the base plate 1 is started, the first motor 201 drives the second lead screw 202 to rotate, and the second lead screw 202 drives the moving frame 101 to move linearly along the base plate 1, so that the position of the moving frame 101 matches the edge contour of the panel; the inner door panel is placed on the base plate 1, ensuring that it is approximately located between the two sets of clamping components, thus completing the initial positioning;

[0026] When the clamping assembly is used to precisely fix the guard plate, the first threaded rod 103 on the fixing frame 102 is rotated. The first threaded rod 103 moves upward and pushes the first pressure block 105 through the first ball joint 104, so that the first flexible pad 106 above the first pressure block 105 contacts the lower surface of the guard plate, providing basic support. The first ball joint 104 allows the first pressure block 105 to rotate freely, adaptively conforming to the curved or deformed area of ​​the lower surface of the guard plate. The first handle 107 on the moving frame 101 is rotated, which drives the first lead screw 108 to rotate. The first lead screw 108 drives the lifting frame 109 to move up and down. Move the second pressure block 112 to a height close to the upper surface of the guard plate; rotate the two sets of second threaded rods 110 on the lifting frame 109 respectively, the second threaded rods 110 push the second pressure block 112 through the second ball joint 111, so that the second flexible pad 113 below the second pressure block 112 contacts the upper surface of the guard plate; the second ball joint 111 allows the second pressure block 112 to rotate freely, adaptively conforming to the complex contour of the upper surface of the guard plate; continue to rotate the second threaded rods 110, so that the first pressure block 105 and the second pressure block 112 work together to stably clamp the guard plate, eliminating the positioning inaccuracy problem caused by deformation or complex contour;

[0027] The second motor 301 on one side of the connecting frame 2 is started. The second motor 301 drives the third lead screw 302 to rotate. The third lead screw 302 drives the moving block 303 and the robotic arm 3 to move linearly along the connecting frame 2, adjusting the drill 4 to above the target drilling position. During the descent of the drill 4, the telescopic rod 402 below the fixed plate 401 pushes the connecting plate 403 downward. The third flexible pad 407 below the third ball joint 405 contacts the surface of the protective plate before the drill bit, and applies a local clamping force perpendicular to the surface of the protective plate through the rigid spring 404. This clamping force can counteract the downward pressure of the drill bit, prevent the protective plate from denting and deforming due to insufficient rigidity in the thin wall or edge area during drilling, and at the same time reduce the small movement of the workpiece caused by drilling vibration, and avoid excessive burrs caused by material tearing at the moment of drilling. After the drill 4 completes the drilling, the robotic arm 3 is reset, the third flexible pad 407 releases the protective plate, and the processed car door inner protective plate is taken out, completing the entire positioning and drilling process.

[0028] Through the above steps, the positions of the two sets of movable frames 101 are adjusted to adapt to the size of the car door inner panel. Rotating the first threaded rod 103 causes the first pressure block 105 and the first flexible pad 106 to contact the lower surface of the car door inner panel to provide support. The first ball joint 104 allows the first pressure block 105 to rotate freely, adapting to the irregular surface of the car door inner panel. Rotating the first handle 107 drives the first lead screw 108 to rotate, which in turn moves the lifting frame 109 up and down. Adjusting the second pressure block 112 and the second flexible pad 106... At height position 13, rotate the second threaded rod 110 to adjust the height of each group of second pressure blocks 112 and second flexible pads 113 respectively. The second ball joint 111 allows the second pressure block 112 to rotate freely, thereby allowing the second flexible pad 113 to adapt to the upper surface of the car door panel. Continue to rotate the second threaded rod 110 so that the first pressure block 105 and the second pressure block 112 clamp and fix the inner panel of the car door. This device uses a ball joint structure to adaptively fit the surface of the panel when drilling and fixing the inner panel of the car door, solving the problem of inaccuracy of rigid positioning on curved surfaces and deformable parts.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An automobile door inner guard plate positioning and punching device, comprising a bottom plate (1), a connecting frame (2), a mechanical arm (3) and a drilling machine (4), characterized in that: It also includes a clamping assembly, an adjusting assembly, and a moving assembly. A connecting frame (2) is provided on one side of the base plate (1), and a mechanical arm (3) is provided above the connecting frame (2). A drilling rig (4) is provided at one end of the mechanical arm (3). Two sets of clamping assemblies are provided above the base plate (1), and two sets of adjusting assemblies are provided on one side of the base plate (1). A moving assembly is provided on one side of the connecting frame (2). The clamping assembly includes a moving frame (101), a fixed frame (102), a first threaded rod (103), a first ball joint (104), a first pressure block (105), a first flexible pad (106), a first handle (107), a first lead screw (108), a lifting frame (109), a second threaded rod (110), a second ball joint (111), a second pressure block (112), and a second flexible pad (113). A moving frame (101) is provided above the base plate (1), and a fixed frame (102) is provided above the moving frame (101). The inner side of the fixed frame (102) is provided with two sets of first threaded rods (103). The first threaded rods (103) are threadedly connected to the fixed frame (102). The upper end of the first threaded rod (103) is provided with a first ball joint (104). The first ball joint (104) is provided with a first pressure block (105) above it. The first pressure block (105) is provided with a first flexible pad (106) above it. The upper part of the movable frame (101) is provided with a first handle (107). The lower part of the first handle (107) is provided with a first lead screw (108). The outer side of the first lead screw (108) is threadedly connected to a lifting frame (109). The inner side of the lifting frame (109) is threadedly connected with two sets of second threaded rods (110). The lower end of the second threaded rod (110) is provided with a second ball joint (111). The lower part of the second ball joint (111) is provided with a second pressure block (112). The lower part of the second pressure block (112) is provided with a second flexible pad (113).

2. The positioning and punching device for the inner door panel of an automobile according to claim 1, characterized in that: The adjustment assembly includes a first motor (201) and a second lead screw (202). The first motor (201) is provided on one side of the base plate (1), and the second lead screw (202) is provided at the output end of the first motor (201). The second lead screw (202) and the moving frame (101) are threadedly connected.

3. The positioning and punching device for the inner door panel of an automobile according to claim 1, characterized in that: The moving component includes a second motor (301) and a third lead screw (302). The second motor (301) is provided on one side of the connecting frame (2), and the third lead screw (302) is provided at the output end of the second motor (301).

4. The positioning and punching device for the inner door panel of an automobile according to claim 3, characterized in that: The moving component also includes a moving block (303), and the moving block (303) is threadedly connected to the outer side of the third lead screw (302). The moving block (303) and the robotic arm (3) are interconnected.

5. The positioning and punching device for the inner door panel of an automobile according to claim 1, characterized in that: A fixing plate (401) is provided on one side of the drilling rig (4). Multiple sets of fixing plates (401) are provided. A telescopic rod (402) is provided below the fixing plate (401). A connecting plate (403) is provided at the lower end of the telescopic rod (402).

6. The positioning and punching device for the inner door panel of an automobile according to claim 5, characterized in that: A rigid spring (404) is provided on the outside of the telescopic rod (402). The two ends of the rigid spring (404) are connected to the connecting plate (403) and the fixing plate (401) respectively. A third ball joint (405) is provided below the connecting plate (403).

7. The positioning and punching device for the inner door panel of an automobile according to claim 6, characterized in that: A third pressure block (406) is provided below the third ball joint (405), and a third flexible pad (407) is provided below the third pressure block (406).

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