Tapping device for vehicle door hinge connecting bolt machining

By using an automated continuous tapping device and a simplified moving design, the problem of low efficiency in traditional tapping devices has been solved, enabling efficient and stable production of door hinge connection bolts and meeting the high-efficiency requirements of the automotive manufacturing industry.

CN223997482UActive Publication Date: 2026-03-17JIAXING LIANGYOU MACHINERY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Traditional tapping devices cannot achieve continuous operation of door hinge connection bolts, resulting in low production efficiency and high costs, making it difficult to meet the large-scale, high-efficiency production needs of the automotive manufacturing industry.

Method used

The device employs a combination of a second motor, pulleys, conveyor belts, shafts, discs, position sensors, a PLC controller, an electric telescopic rod, a frame, and a tapping head to achieve automated and continuous tapping operations. The device is easily moved through the cooperation of a third motor, lead screw, sliding plate, and rollers.

Benefits of technology

The automated and continuous tapping of door hinge connecting bolts has been achieved, which has improved production efficiency and processing accuracy, reduced labor costs, simplified the device movement process, and improved production progress and stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223997482U_ABST
    Figure CN223997482U_ABST
Patent Text Reader

Abstract

The utility model provides a tapping device for machining a vehicle door hinge connecting bolt, and relates to the technical field of tapping devices. Through cooperation of the second motor, the second belt wheel, the conveying belt, the first belt wheel, the rotating shaft, the disc, the position sensor, the PLC, the electric telescopic rod, the frame, the first motor and the tapping head, the purpose of automatic and continuous tapping operation of the vehicle door hinge connecting bolt is achieved; compared with the prior art that bolts to be machined are manually replaced, repositioned and tapped, the automatic tapping machine has the advantages of being high in production efficiency, stable in machining precision and low in labor cost, an operator only needs to place a plurality of bolts in the placement groove of the disc at a time, follow-up feeding, positioning and tapping operations are all automatically completed, and the production efficiency is greatly improved. Manual intervention is greatly reduced, errors caused by manual operation are avoided, and meanwhile the production progress is greatly improved through continuous automatic operation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of tapping device technology, and in particular to a tapping device for machining car door hinge connecting bolts. Background Technology

[0002] Tapping is a crucial step in the machining of door hinge connecting bolts.

[0003] Traditional tapping devices have significant drawbacks. They typically can only tap a single bolt at a time, preventing continuous operation. This means that after tapping one bolt, the bolt to be processed must be manually replaced, the location repositioned, and the tapping process restarted—a cumbersome and time-consuming process. This inefficient operation not only severely impacts production schedules but also significantly increases production costs. Especially in the current automotive manufacturing industry, where the demand for door hinge bolts is ever-increasing, traditional tapping devices can no longer meet the needs of large-scale, high-efficiency production, thus requiring improvement. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art above, and to propose a device for processing and tapping bolts for car door hinges.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a tapping device for machining car door hinge connecting bolts, comprising a workbench, columns symmetrically fixedly installed on the top of the workbench, a top plate fixedly installed on the top of the columns, an electric telescopic rod fixedly installed inside the top of the top of the top plate, a frame fixedly installed at the output end of the electric telescopic rod, a first motor fixedly installed on the inner surface of the frame, a tapping head fixedly installed at the output end of the first motor, a position sensor fixedly installed on the outer wall of the tapping head, an mounting plate fixedly installed on the bottom of one side of the top plate, a PLC controller fixedly installed on the outer side of the mounting plate, a rotating shaft rotatably connected inside the top of the workbench, a disc fixedly installed at the top of the rotating shaft, placement grooves evenly opened on the top of the disc, a first pulley fixedly installed at the bottom of the rotating shaft, a second motor fixedly installed on the top of the workbench, a second pulley fixedly installed at the output end of the second motor, and a conveyor belt sleeved inside the second pulley and the first pulley.

[0006] Preferably, both the second pulley and the first pulley are rotatably connected to the conveyor belt.

[0007] Preferably, the electric telescopic rod, the first motor, the position sensor, and the second motor are all electrically connected to the PLC controller.

[0008] Preferably, the bottom of the workbench is symmetrically fixedly equipped with support legs, the bottom end of the support legs is fixedly equipped with a base plate, the outer wall of the support legs is fixedly equipped with an X-shaped plate, the top of the X-shaped plate is fixedly equipped with a third motor, the output end of the third motor is fixedly equipped with a lead screw, the outer wall of the lead screw is threaded with a sliding plate, and the bottom of the sliding plate is symmetrically fixedly equipped with rollers.

[0009] Preferably, the sliding plate is slidably connected to the support leg.

[0010] Preferably, the third motor is electrically connected to the PLC controller.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the automated and continuous tapping operation of door hinge connecting bolts is achieved through the cooperation of a second motor, a second pulley, a conveyor belt, a first pulley, a rotating shaft, a disc, a position sensor, a PLC controller, an electric telescopic rod, a frame, a first motor, and a tapping head. Compared with the prior art of manually changing the bolts to be processed, repositioning, and starting the tapping process, it has the advantages of high production efficiency, stable processing accuracy, and low labor costs. The operator only needs to place multiple bolts in the placement slot of the disc at one time, and the subsequent loading, positioning, and tapping operations are all completed automatically, which greatly reduces manual intervention and avoids errors caused by manual operation. At the same time, continuous automated operation greatly improves the production progress and effectively meets the needs of the automotive industry for large-scale and high-efficiency production of door hinge connecting bolts.

[0013] 2. In this utility model, the tapping device can be moved conveniently and quickly through the cooperation of the third motor, lead screw, sliding plate, rollers and support legs. Compared with the existing technology that requires external handling equipment, such as forklifts and other large machinery, to move the tapping device, it has the advantages of simple operation and low cost. The operator only needs to start the third motor through the PLC controller to move the device independently without the need for additional complex equipment, which greatly improves the efficiency of moving the tapping device. At the same time, after the device is moved to the designated position, the sliding plate can be raised quickly by reversing the operation of the third motor and supported by the base plate to ensure the stability of the device in subsequent processing. Attached Figure Description

[0014] Figure 1 This utility model provides an overall structural schematic diagram of a tapping device for machining car door hinge connecting bolts;

[0015] Figure 2 This utility model proposes a tapping device for machining car door hinge connecting bolts. Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This utility model provides a side view of a device for processing and tapping bolts for car door hinges.

[0017] Figure 4 This utility model presents a bottom view structural diagram of a device for processing and tapping bolts for car door hinges.

[0018] Legend: 1. Workbench; 2. Column; 3. Top plate; 4. Electric telescopic rod; 5. Frame; 6. First motor; 7. Tapping head; 8. Position sensor; 9. Mounting plate; 10. PLC controller; 11. Rotary shaft; 12. Disc; 13. Placement slot; 14. First pulley; 15. Second motor; 16. Second pulley; 17. Conveyor belt; 18. Support leg; 19. Base plate; 20. X-shaped plate; 21. Third motor; 22. Lead screw; 23. Sliding plate; 24. Roller. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-3As shown, this utility model provides a technical solution: a tapping device for machining car door hinge connecting bolts, including a workbench 1, columns 2 symmetrically fixedly installed on the top of the workbench 1, a top plate 3 fixedly installed on the top of the columns 2, an electric telescopic rod 4 fixedly installed inside the top of the top of the top plate 3, a frame 5 fixedly installed at the output end of the electric telescopic rod 4, a first motor 6 fixedly installed on the inner surface of the frame 5, a tapping head 7 fixedly installed at the output end of the first motor 6, a position sensor 8 fixedly installed on the outer wall of the tapping head 7, a mounting plate 9 fixedly installed on one side of the bottom of the top plate 3, and a PLC controller 10 fixedly installed on the outer side of the mounting plate 9. The top of the workbench 1 is rotatably connected to a rotating shaft 11. A disc 12 is fixedly installed at the top of the rotating shaft 11. Placement slots 13 are evenly distributed on the top of the disc 12. A first pulley 14 is fixedly installed at the bottom of the rotating shaft 11. A second motor 15 is fixedly installed at the top of the workbench 1. A second pulley 16 is fixedly installed at the output end of the second motor 15. A conveyor belt 17 is fitted inside the second pulley 16 and the first pulley 14. The second pulley 16 and the first pulley 14 are rotatably connected to the conveyor belt 17. The electric telescopic rod 4, the first motor 6, the position sensor 8, and the second motor 15 are all electrically connected to the PLC controller 10.

[0022] In this embodiment, the automated and continuous tapping operation of the door hinge connecting bolts is achieved through the cooperation of the second motor 15, the second pulley 16, the conveyor belt 17, the first pulley 14, the rotating shaft 11, the disc 12, the position sensor 8, the PLC controller 10, the electric telescopic rod 4, the frame 5, the first motor 6, and the tapping head 7. Compared with the prior art of manually changing the bolts to be processed, repositioning and starting the tapping process, it has the advantages of high production efficiency, stable processing accuracy and low labor cost. The operator only needs to place multiple bolts in the placement slot 13 of the disc 12 at one time. The subsequent loading, positioning and tapping operations are all completed automatically, which greatly reduces manual intervention and avoids errors caused by manual operation. At the same time, the continuous automated operation greatly improves the production progress and effectively meets the needs of the automotive industry for large-scale and high-efficiency production of door hinge connecting bolts.

[0023] Example 2: As Figure 4 As shown, support legs 18 are symmetrically fixedly installed at the bottom of the workbench 1. A base plate 19 is fixedly installed at the bottom end of the support legs 18. An X-shaped plate 20 is fixedly installed on the outer wall of the support legs 18. A third motor 21 is fixedly installed on the top of the X-shaped plate 20. A lead screw 22 is fixedly installed at the output end of the third motor 21. A sliding plate 23 is threadedly connected to the outer wall of the lead screw 22. Rollers 24 are symmetrically fixedly installed at the bottom of the sliding plate 23. The sliding plate 23 is slidably connected to the support legs 18. The third motor 21 is electrically connected to the PLC controller 10.

[0024] In this embodiment, the tapping device can be moved conveniently and quickly through the cooperation of the third motor 21, lead screw 22, sliding plate 23, roller 24 and support leg 18. Compared with the prior art, which requires external handling equipment such as forklifts and other large machinery to move the tapping device, it has the advantages of simple operation and low cost. The operator only needs to start the third motor 21 through the PLC controller 10 to complete the movement of the device independently without the need for additional complex equipment, which greatly improves the efficiency of moving the tapping device. At the same time, after the device is moved to the designated position, the sliding plate 23 can be raised quickly by reversing the operation of the third motor 21 and supported and stabilized by the base plate 19, ensuring the stability of the device in subsequent processing.

[0025] The working principle of this embodiment is as follows: The operator first places the door hinge connecting bolts to be processed into the evenly spaced slots 13 on the top of the disc 12. At this time, the second motor 15 is started, and the second pulley 16 at the output end of the second motor 15 rotates, driving the first pulley 14 to rotate through the conveyor belt 17. Since the first pulley 14 is fixed to the bottom end of the rotating shaft 11, the rotating shaft 11 rotates, and the disc 12, which is fixedly connected to the top end of the rotating shaft 11, rotates accordingly. During the rotation of the disc 12, the bolts in the slots 13 are sequentially conveyed to the tapping head 7 directly below. When the bolt reaches the tapping position, the position sensor 8 detects the bolt's arrival signal and transmits it to the PLC controller 10. Upon receiving the signal, the PLC controller 10 controls the electric telescopic rod 4 to start. The output end of the electric telescopic rod 4 extends downward, driving the frame 5, the first motor 6 fixed on the inner surface of the frame 5, and the tapping head 7 to move downward. After moving a certain distance, the first motor 6 starts, and its output end drives the tapping head 7 to rotate at high speed, performing the tapping operation on the bolt below. After tapping is completed, the electric telescopic rod 4 drives the tapping head 7 to rise and reset. If it is necessary to move the entire tapping device, the third motor 21 can be started by the PLC controller 10. The third motor 21 drives the lead screw 22 to rotate. The sliding plate 23, which is threaded to the lead screw 22, slides up and down along the support leg 18 under the action of the lead screw 22. When the sliding plate 23 descends to a certain position, so that the roller 24 contacts the ground and supports the device, the device can be pushed to the desired position. After the movement is completed, the third motor 21 is operated in reverse to raise the sliding plate 23, and the device is stabilized by the base plate 19.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A door hinge connecting bolt machining tapping device, comprising a workbench (1), characterized in that: The top of the workbench (1) is symmetrically fixedly installed with a stand (2), the top end of the stand (2) is fixedly installed with a top plate (3), the top end inside of the top plate (3) is fixedly installed with an electric telescopic rod (4), the output end of the electric telescopic rod (4) is fixedly installed with a frame (5), the inner surface of the frame (5) is fixedly installed with a first motor (6), the output end of the first motor (6) is fixedly installed with a tapping head (7), the outer wall of the tapping head (7) is fixedly installed with a position sensor (8), one side bottom of the top plate (3) is fixedly installed with a mounting plate (9), the outer side of the mounting plate (9) is fixedly installed with a PLC controller (10), the top end inside of the workbench (1) is rotatably connected with a rotating shaft (11), the top end of the rotating shaft (11) is fixedly installed with a disc (12), the top of the disc (12) is uniformly provided with a placing groove (13), the bottom end of the rotating shaft (11) is fixedly installed with a first belt pulley (14), the top of the workbench (1) is fixedly installed with a second motor (15), the output end of the second motor (15) is fixedly installed with a second belt pulley (16), the inside of the second belt pulley (16) and the first belt pulley (14) is sleeved with a conveying belt (17).

2. The door hinge connecting bolt machining tapping device according to claim 1, characterized in that: The second belt pulley (16) and the first belt pulley (14) are rotatably connected with the conveying belt (17).

3. The door hinge connecting bolt threading apparatus of claim 1, wherein: The electric telescopic rod (4), the first motor (6), the position sensor (8) and the second motor (15) are electrically connected with the PLC controller (10).

4. The door hinge connecting bolt threading apparatus of claim 1, wherein: The bottom of the workbench (1) is symmetrically fixedly installed with a supporting leg (18), the bottom end of the supporting leg (18) is fixedly installed with a bottom plate (19), the outer wall of the supporting leg (18) is fixedly installed with an X-shaped plate (20), the top of the X-shaped plate (20) is fixedly installed with a third motor (21), the output end of the third motor (21) is fixedly installed with a lead screw (22), the outer wall of the lead screw (22) is threadedly connected with a sliding plate (23), the bottom of the sliding plate (23) is symmetrically fixedly installed with a roller (24).

5. The door hinge connecting bolt threading apparatus of claim 4, wherein: The sliding plate (23) is slidably connected with the supporting leg (18).

6. The door hinge connecting bolt threading apparatus of claim 4, wherein: The third motor (21) is electrically connected with the PLC controller (10).