Automatic assembling device for threaded parts

Abstract

The utility model discloses an automatic assembly device for a threaded part, which solves the problem of low assembly efficiency of the threaded part, and adopts the technical scheme that the automatic assembly device comprises a fixing mechanism, a tightening mechanism and a moving mechanism, the tightening mechanism is used for assembling an upper threaded part and a lower threaded part located on the fixing mechanism, and the moving mechanism is connected with the tightening mechanism and controls the tightening mechanism to move; the tightening mechanism comprises a driving motor and a second pneumatic clamp, the driving motor is connected with the second pneumatic clamp and controls the second pneumatic clamp to rotate, and a buffer device is arranged between the second pneumatic clamp and the driving motor; the moving mechanism comprises a horizontal air cylinder and a vertical air cylinder. And the purpose of efficiently assembling the threaded part is achieved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical assembly technology, specifically to an automatic assembly device for threaded parts. Background Technology

[0002] In the field of industrial assembly, it is usually necessary to assemble two threaded parts together. Before assembly, the lower threaded part needs to be fixed, and then the upper threaded part is screwed into the lower threaded part by a tightening device to complete the assembly.

[0003] The existing assembly method for threaded parts mostly involves the operator placing the upper threaded part in the corresponding assembly position of the lower threaded part, and then screwing the upper threaded part into the lower threaded part using a hand-held screwdriver. This assembly method is not only inefficient, but also has high labor costs. Utility Model Content

[0004] The purpose of this invention is to provide an automatic assembly device for threaded parts, which can realize the automatic assembly of threaded parts and improve assembly efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic assembly device for threaded parts, comprising a fixing mechanism, a tightening mechanism, and a moving mechanism. The fixing mechanism is located at the bottom of the tightening mechanism, and the tightening mechanism assembles an upper threaded part with a lower threaded part located on the fixing mechanism. The moving mechanism is connected to the tightening mechanism and controls the movement of the tightening mechanism. The fixing mechanism includes a fixed base and a first pneumatic clamp, the first pneumatic clamp being located at the top of the fixed base and clamping the lower threaded part. The tightening mechanism includes a drive motor and a second pneumatic clamp, the drive motor being connected to the second pneumatic clamp and controlling the rotation of the second pneumatic clamp, a buffer device being provided between the second pneumatic clamp and the drive motor. The moving mechanism includes a horizontal cylinder and a vertical cylinder, the horizontal cylinder controlling the horizontal movement of the tightening mechanism, and the vertical cylinder controlling the lifting and lowering of the tightening mechanism.

[0006] Preferably, the drive motor is connected to the second pneumatic clamp via a transmission shaft, the transmission shaft is connected to a transmission plate, and the buffer device is a buffer spring, which is disposed between the transmission plate and the second pneumatic clamp.

[0007] Preferably, the drive shaft is connected to a slip ring, and the slip ring is connected to the second pneumatic clamp via an air guide pipe.

[0008] Preferably, the moving mechanism further includes a first support base, on which the drive motor and the air slip ring are both mounted. The first support base is connected to the vertical cylinder, and the vertical cylinder is connected to the horizontal cylinder through a second support base.

[0009] Preferably, the drive motor is connected to a torque sensor, which is mounted on the first support base.

[0010] Preferably, the transmission shaft is fitted with a bearing, and the bearing is fixedly connected to the first support seat via a bearing housing.

[0011] Preferably, the bottom of the fixed base is provided with a worktable, the fixed base is fixedly installed on the worktable, and the horizontal cylinder is installed on the worktable by a bracket.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses a second pneumatic clamp to clamp and fix the upper threaded part, and then uses a moving device to control the movement of the second pneumatic clamp to transfer the upper threaded part to a position that matches the lower threaded part. Then, the drive motor controls the rotation of the second pneumatic clamp, and at the same time, the moving mechanism controls the second pneumatic clamp to move downward, so as to screw the upper threaded part into the lower threaded part to complete the assembly, which greatly improves the assembly efficiency of the threaded part.

[0013] Meanwhile, by adding a buffer device between the drive motor and the second pneumatic clamp, excessive downward pressure during the second pneumatic clamp's rotation can be effectively prevented from affecting the assembled parts. Furthermore, by adding a torque sensor, the torque of the second pneumatic clamp during assembly can be detected. When the torque reaches a preset value, the controller stops the drive motor, automatically completing the assembly without manual intervention. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the sealing device structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the tightening mechanism of this utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the fixing base of this utility model.

[0018] In the diagram: 1. Upper threaded component; 2. Lower threaded component; 3. Fixed base; 4. First pneumatic clamp; 5. Drive motor; 6. Second pneumatic clamp; 7. Horizontal cylinder; 8. Vertical cylinder; 9. Drive shaft; 10. Drive plate; 11. Buffer spring; 12. Air slip ring; 13. First support base; 14. Second support base; 15. Torque sensor; 16. Bearing housing; 17. Worktable; 18. Support. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Appendix Figure 1-4 This embodiment provides an automatic assembly device for threaded parts, including a fixing mechanism, a tightening mechanism, and a moving mechanism. The fixing mechanism is located at the bottom of the tightening mechanism, and the tightening mechanism assembles an upper threaded part with a lower threaded part located on the fixing mechanism. The moving mechanism is connected to the tightening mechanism and controls the movement of the tightening mechanism. The fixing mechanism includes a fixed base and a first pneumatic clamp, the first pneumatic clamp being located at the top of the fixed base and clamping the lower threaded part. The tightening mechanism includes a drive motor and a second pneumatic clamp, the drive motor being connected to the second pneumatic clamp and controlling the rotation of the second pneumatic clamp, a buffer device being provided between the second pneumatic clamp and the drive motor. The moving mechanism includes a horizontal cylinder and a vertical cylinder, the horizontal cylinder controlling the horizontal movement of the tightening mechanism, and the vertical cylinder controlling the lifting and lowering of the tightening mechanism.

[0021] Specifically, a workbench is provided at the bottom of the fixed base. The fixed base and the workbench are fixedly installed on the workbench by bolts. The fixed base is provided with a receiving groove that mates with the lower threaded part. The lower threaded part is placed in the receiving groove. The first pneumatic clamp is fixedly installed on the top of the fixed base by bolts. The two jaws of the first pneumatic clamp are horizontally arranged and located on both sides of the lower threaded part. The lower threaded part is clamped and fixed by the clamping of the first pneumatic clamp.

[0022] The two jaws of the second pneumatic clamp are located at the bottom, which can clamp and fix the upper threaded part. The drive motor controls the rotation of the second pneumatic clamp to screw the upper threaded part into the lower threaded part.

[0023] The horizontal cylinder of the moving mechanism is mounted on the workbench via a bracket. The horizontal cylinder controls the second pneumatic clamp to move horizontally, which can transport the second pneumatic clamp to the position where the upper threaded part is placed. The lifting cylinder controls the second pneumatic clamp to move downward to clamp the upper threaded part, and then drives the second pneumatic clamp to move upward. After that, the horizontal cylinder transports the second pneumatic clamp to the corresponding position on the top of the fixed seat.

[0024] Preferably, the drive motor is connected to the second pneumatic clamp via a transmission shaft, the transmission shaft is connected to a transmission plate, and the buffer device is a buffer spring, which is disposed between the transmission plate and the second pneumatic clamp.

[0025] Specifically, the drive shaft is fixedly connected to the center of the drive plate. The drive plate is connected to the top of the second pneumatic clamp through two symmetrically distributed connecting rods. The bottom of the connecting rod is fixedly connected to the second pneumatic clamp. The top of the connecting rod passes through the drive plate and is provided with a limit plate. The limit plate can limit the connecting rod. The buffer spring is sleeved on the outside of the connecting rod. When the downward pressure of the drive motor is too large, the drive plate squeezes the limit spring, which plays a buffering role.

[0026] Preferably, the drive shaft is connected to a slip ring, and the slip ring is connected to the second pneumatic clamp via an air guide pipe.

[0027] Specifically, both the first pneumatic clamp and the second pneumatic clamp are connected to an external air source. The first pneumatic clamp is directly connected to the air source through an air pipe, and the second pneumatic clamp is connected to the air outlet of the rotating end of the air slip ring through an air pipe. The air inlet end of the air slip ring is connected to the air source.

[0028] Preferably, the moving mechanism further includes a first support base, on which the drive motor and the air slip ring are both mounted. The first support base is connected to the vertical cylinder, and the vertical cylinder is connected to the horizontal cylinder through a second support base.

[0029] Specifically, the air slip ring is sleeved on the outside of the drive shaft. Its fixed end is fixedly connected to the first support base, and its rotating end is connected to the drive shaft. The rotating end can rotate with the drive shaft, making the air supply of the second pneumatic clamp more stable and preventing the air guide tube from getting tangled. Both the first and second support bases are made of aluminum alloy plates. The first support base is connected to the drive end of the vertical cylinder, and the vertical cylinder is fixedly installed on the second support base. The second support base is connected to the drive end of the horizontal cylinder, and the horizontal cylinder is installed on the bracket, which is provided with a slide that mates with the second support base.

[0030] Preferably, the drive motor is connected to a torque sensor, which is mounted on the first support base. A bearing is fitted onto the drive shaft, and the bearing is fixedly connected to the first support base via a bearing housing.

[0031] Specifically, the torque sensor is connected to the drive motor and the transmission shaft at both ends via couplings, and the torque sensor is connected to the first support base via bolts. The bearing housing is also connected to the first support base via bolts, effectively fixing the transmission shaft and improving the rotational stability of the transmission shaft.

[0032] In this embodiment, the drive motor, horizontal cylinder, vertical cylinder, torque sensor, first pneumatic clamp, second pneumatic clamp, etc. are all connected to the PLC controller and controlled by the PLC controller. The PLC controller is a conventional model and has no other special structure or function.

[0033] In this embodiment, during operation, the lower threaded component is placed in the receiving groove of the fixed base, and then the first pneumatic clamp clamps both sides of the lower threaded component. A horizontal cylinder drives the second pneumatic clamp to move horizontally to the storage position of the upper threaded component. Then, a vertical cylinder controls the second pneumatic clamp to descend to a preset position, where it grips the upper threaded component. A moving mechanism then moves the second pneumatic clamp to the top of the fixed base, and the vertical cylinder drives the second pneumatic clamp downwards. Simultaneously, a drive motor controls the second pneumatic clamp to rotate, assembling the two threaded components. A torque sensor detects the torque magnitude. When assembly is complete, the torque reaches the preset value of the torque sensor, and the controller controls the drive motor to operate, simultaneously controlling the first and second pneumatic clamps, and controlling the vertical cylinder to move the second pneumatic clamp upwards to complete the assembly.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic screw assembly apparatus, characterized by, It includes fixing mechanism, tightening mechanism and moving mechanism, the fixing mechanism is located at the bottom of the tightening mechanism, the tightening mechanism is assembled with the upper threaded part (1) and the lower threaded part (2) located on the fixing mechanism, the moving mechanism is connected with the tightening mechanism, and the movement of the tightening mechanism is controlled; The fixing mechanism includes a fixed seat (3) and a first pneumatic clamp (4), and the first pneumatic clamp (4) is located at the top of the fixed seat (3) and clamps the lower threaded part (2); The tightening mechanism includes a driving motor (5) and a second pneumatic clamp (6), the driving motor (5) is connected with the second pneumatic clamp (6), controls the rotation of the second pneumatic clamp (6), and the second pneumatic clamp (6) is provided with a buffer device between the driving motor (5); The moving mechanism includes a horizontal air cylinder (7) and a vertical air cylinder (8), the horizontal air cylinder (7) controls the horizontal movement of the tightening mechanism, and the vertical air cylinder (8) controls the lifting of the tightening mechanism.

2. The threaded item automatic assembly apparatus according to claim 1, wherein The driving motor (5) is connected with the second pneumatic clamp (6) through a transmission shaft (9), the transmission shaft (9) is connected with a transmission plate (10), the buffer device is a buffer spring (11), and the buffer spring (11) is arranged between the transmission plate (10) and the second pneumatic clamp (6).

3. The threaded part automatic assembly apparatus according to claim 2, wherein The transmission shaft (9) is connected with a gas slip ring (12), and the gas slip ring (12) is connected with the second pneumatic clamp (6) through a gas guide pipe.

4. The threaded item automatic assembly apparatus according to claim 3, wherein The moving mechanism further includes a first support seat (13), the driving motor (5) and the gas slip ring (12) are mounted on the first support seat (13), the first support seat (13) is connected with the vertical air cylinder (8), and the vertical air cylinder (8) is connected with the horizontal air cylinder (7) through a second support seat (14).

5. The threaded part automatic assembly apparatus according to claim 4, wherein The driving motor (5) is connected with a torque sensor (15), and the torque sensor (15) is mounted on the first support seat (13).

6. The threaded part automatic assembly apparatus according to claim 4, wherein The transmission shaft (9) is sleeved with a bearing, and the bearing is fixedly connected with the first support seat (13) through a bearing seat (16).

7. The threaded part automatic assembly apparatus according to claim 4, wherein A workbench (17) is arranged at the bottom of the fixed seat (3), and the fixed seat (3) is fixedly installed on the workbench (17), and the horizontal air cylinder (7) is installed on the workbench (17) through a support (18).

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