Screw gun clamp for robot

Abstract

The screw gun clamp for the robot comprises a flange assembly, a first connecting plate and a second connecting plate which are sequentially arranged from top to bottom, the flange assembly comprises a flange plate, a circuit module and a gas circuit module are arranged on the upper surface of the flange plate, and a flange connecting plate is installed on the lower surface of the flange plate; the flange connecting plate is connected with the first connecting plate through the first connecting supporting column, and the first connecting plate is connected with the second connecting plate through the second connecting supporting column. A plurality of screw guns are arranged in the space between the flange connecting plate and the first connecting plate and the space between the first connecting plate and the second connecting plate, the screw guns are connected with the circuit module and the gas circuit module, the gas circuit module drives the screw guns to rotate under the control of the circuit module, and the screw guns are matched with pre-machined threaded holes in a target structural part. And after screwing, carrying and mounting of the target structural member are realized. According to the utility model, a robot in an automatic production line can carry and install a large-scale structural member, and the carrying efficiency and the installation precision are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automated robots, and particularly relates to a screw gun fixture for a robot. Background Art

[0002] In the process of handling and installing machinery on an automated production line, there is a production demand for handling and installing large structural components. The main difficulty is that the structural components have large external dimensions, heavy weights, and are not easy to handle. Manual handling and installation are time-consuming and laborious, and the structural components may be bumped and damaged during installation and placement. With the increasing requirement for production efficiency and the rapid development of automation, more and more manufacturing industries are using robots to replace manual labor for efficient operation. Therefore, it is necessary to design a special fixture to improve the handling and installation efficiency of such large structural components. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a screw gun fixture for a robot to improve the handling efficiency and installation accuracy of a robot for large structural components in an automated production line in view of the above problems in the prior art.

[0004] To achieve the above purpose, the utility model has the following technical solutions:

[0005] A screw gun fixture for a robot, comprising a flange assembly, a first connecting plate, and a second connecting plate arranged in sequence from top to bottom. The flange assembly includes a flange plate, on the upper surface of which there are a circuit module and a gas circuit module, and on the lower surface of which there is a flange connecting plate installed; the flange connecting plate is connected to the first connecting plate through a first connecting pillar, and the first connecting plate is connected to the second connecting plate through a second connecting pillar; several screw guns are arranged in the space between the flange connecting plate and the first connecting plate and between the first connecting plate and the second connecting plate. The screw guns are connected to the circuit module and the gas circuit module. The gas circuit module drives the screw guns to rotate under the control of the circuit module. The screw guns are matched with the pre-processed threaded holes on the target structural component, and after being tightened, the handling and installation of the target structural component are realized.

[0006] As a preferred solution, a plurality of the first connecting pillars and the second connecting pillars are provided and are evenly arranged around the flange connecting plate and the first connecting plate;

[0007] Two first screw guns and two second screw guns are arranged in a centrosymmetric manner in the space between the flange connecting plate and the first connecting plate and between the first connecting plate and the second connecting plate.

[0008] As a preferred solution, the screw gun includes a motor mounting base, a motor is mounted on the lower surface of the motor mounting base, a tensioning member is mounted on the upper surface of the motor mounting base, a first connecting shaft is mounted at the output end of the motor, the first connecting shaft is fixedly mounted with a first bearing through a shaft circlip, the upper surface of the tensioning member is fixedly mounted with the first bearing through a first bearing pressing plate, and the first connecting shaft is fixedly mounted with a first pulley through a shaft circlip; it further includes a second connecting shaft arranged in parallel with the first connecting shaft, the second connecting shaft is fixedly mounted with a second pulley through a shaft circlip, and the second pulley is connected to the first pulley through a synchronous belt; the second connecting shaft is supported by a second bearing, the second bearing is fixedly mounted through a second bearing pressing plate, the second connecting shaft is connected to a third connecting shaft through a coupling, a displacement rod passes through the inside of the third connecting shaft, and the lower end of the displacement rod is connected to a thread tightening member through a threaded tightening transmission member.

[0009] As a preferred solution, the screw gun further includes a first cylinder body, a second cylinder body and a third cylinder body connected in sequence, the second connecting shaft and the third connecting shaft are arranged inside the first cylinder body, a spring is placed inside the second cylinder body, and the displacement rod passes through the inside of the spring and is connected to the thread tightening transmission member.

[0010] As a preferred solution, a sleeve is arranged inside the second cylinder body, the sleeve is sleeved on the outer periphery of the end of the third connecting shaft, a third bearing is fixedly mounted inside the second cylinder body through a hole circlip, and the inner ring of the third bearing mounts and fixes the sleeve through a cover plate.

[0011] As a preferred solution, the screw gun further includes a housing arranged at the top, the motor mounting base, the tensioning member, the first bearing, the first bearing pressing plate, the first connecting shaft, the first pulley, the synchronous belt, the second pulley, the second bearing pressing plate, the second bearing, and the tops of the second connecting shaft and the displacement rod are all arranged inside the housing; the first cylinder body, the second cylinder body and the third cylinder body are sequentially connected to the lower surface of the housing.

[0012] As a preferred solution, an upper cover plate is arranged on the upper surface of the housing, a graphite sleeve, a proximity switch and a proximity sensor are arranged on the upper surface of the upper cover plate, the graphite sleeve is connected to the top of the displacement rod, the proximity switch is mounted on one side of the graphite sleeve through a sensor connecting plate, the proximity sensor judges whether the thread tightening member is screwed in or out by detecting the graphite sleeve, a counting member is mounted at the top of the second connecting shaft, the second connecting shaft drives the counting member to rotate, and the number of turns of the counting member rotating is detected by the proximity switch to measure the depth of the screw gun screwed in.

[0013] As a preferred solution, the graphite sleeve and the top of the third connecting shaft are connected by interference fit, the second pulley and the counting member are connected to the second connecting shaft through flat keys, and after being fixed by elastic circlips, they are mounted on the housing and fixedly mounted through a second bearing pressing plate.

[0014] As a preferred solution, a rubber pad is installed on the threaded tightening member, and the rubber pad contacts the threaded hole of the target structural member.

[0015] As a preferred solution, the gas circuit module controls the action direction and action sequence of the motor of the corresponding screw gun by changing the intake and exhaust of the solenoid valve.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] By pre-processing the threaded holes on the target structural member and matching the screw gun with them, after the screw gun is tightened in the threaded holes, the handling and installation of the target structural member can be realized. The utility model solves the problems of handling and installation of large structural members. A non-installation plane or a non-important installation plane can be found on the large structural member. According to the positions of several screw guns on the plane, threaded holes with corresponding distance dimensions are drilled on the large structural member. By connecting the screw gun fixture of the utility model with an industrial robot, under the control of the circuit module, the gas circuit module drives the screw gun to rotate, so as to realize the handling and installation of large structural members by the robot in the automatic production line, improving the handling efficiency and installation accuracy.

[0018] Furthermore, the threaded tightening member of the utility model contacts the threaded hole of the target structural member through a rubber pad, and using gas as the power source can effectively protect the target structural member and avoid damage to the target structural member. The overall structure of the screw gun fixture for robots of the utility model is delicate, which can effectively improve the installation accuracy and working efficiency, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the screw gun fixture for robots of the utility model;

[0020] Figure 2 is Figure 1 the overall structural schematic diagram of the flange assembly in the shown embodiment;

[0021] Figure 3 is Figure 1 the overall structural schematic diagram of the first screw gun in the shown embodiment;

[0022] Figure 4 is Figure 1 the overall structural sectional schematic diagram of the first screw gun in the shown embodiment;

[0023] Figure 5 is Figure 1 the overall structural partial sectional schematic diagram of the first screw gun in the shown embodiment;

[0024] Figure 6 is Figure 1 the overall structural schematic diagram of the second screw gun in the illustrated embodiment;

[0025] Figure 7 is Figure 1 the pneumatic circuit schematic diagram of the screw gun fixture for the manipulator in the illustrated embodiment;

[0026] In the drawings: 1 - flange assembly; 2 - first screw gun; 3 - second screw gun; 4 - pneumatic circuit assembly; 5 - first connecting plate; 6 - second connecting plate; 7 - first connecting pillar; 8 - second connecting pillar; 9 - flange plate; 10 - circuit module; 11 - pneumatic circuit module; 12 - flange connecting plate; 13 - first upper cover plate; 14 - sensor connecting plate; 15 - housing; 16 - tensioning member; 17 - motor mounting seat; 18 - first bearing pressure plate; 19 - first connecting shaft; 20 - second connecting shaft; 21 - counting member; 22 - second bearing pressure plate; 23 - third connecting shaft; 24 - first cylinder body; 25 - second cylinder body; 26 - sleeve; 27 - thread tightening transmission member; 28 - displacement rod; 29 - thread tightening member; 30 - third cylinder body; 31 - cover plate; 32 - first bearing; 33 - second bearing; 34 - proximity sensor; 35 - proximity switch; 36 - joint; 37 - spring; 38 - rubber pad; 39 - first pulley; 40 - second pulley; 41 - synchronous belt; 42 - motor; 43 - coupling; 44 - graphite sleeve; 45 - second upper cover plate. Detailed implementation manners

[0027] The following further describes the present utility model in detail with reference to the drawings and embodiments.

[0028] Please refer to Figures 1 to 5, A screw gun fixture for a robot proposed by an embodiment of the present utility model includes a flange assembly 1, a first connecting plate 5, and a second connecting plate 6 arranged in sequence from top to bottom. The flange assembly 1 includes a flange plate 9. A circuit module 10 and a gas circuit module 11 are arranged on the upper surface of the flange plate 9, and a flange connecting plate 12 is installed on the lower surface of the flange plate 9. The flange connecting plate 12 is connected to the first connecting plate 5 through a first connecting pillar 7, and the first connecting plate 5 is connected to the second connecting plate 6 through a second connecting pillar 8; a plurality of screw guns are arranged in the space between the flange connecting plate 12 and the first connecting plate 5 and between the first connecting plate 5 and the second connecting plate 6. In a possible implementation manner, there are four first connecting pillars 7 and second connecting pillars 8, which are evenly arranged around the flange connecting plate 12 and around the first connecting plate 5 and the second connecting plate 6 to provide reliable support. Two first screw guns 2 and two second screw guns 3 are arranged in a centrosymmetric manner in the space between the flange connecting plate 12 and the first connecting plate 5 and between the first connecting plate 5 and the second connecting plate 6. The screw guns are connected to the circuit module 10 and the gas circuit module 11. The gas circuit module 11 drives the screw guns to rotate under the control of the circuit module 10. The screw guns are matched with the pre-processed threaded holes on the target structural member, and after being tightened, the handling and installation of the target structural member are realized.

[0029] The structures of the first screw gun 2 and the second screw gun 3 in this embodiment are the same. As Figure 3 shown in Figure 6 , the structure of the screw gun includes a motor mounting seat 17. A motor 42 is installed on the lower surface of the motor mounting seat 17, and a tensioning member 16 is installed on the upper surface of the motor mounting seat 17. The output end of the motor 42 is installed with a first connecting shaft 19. The first connecting shaft 19 is installed and fixed with a first bearing through a shaft retaining ring. The upper surface of the tensioning member 16 is installed and fixed with a first bearing through a first bearing pressing plate 18. The first connecting shaft 19 is installed and fixed with a first belt pulley 39 through a shaft retaining ring. The screw gun also includes a second connecting shaft 20 arranged in parallel with the first connecting shaft 19. The second connecting shaft 20 is installed and fixed with a second belt pulley 40 through a shaft retaining ring. The second belt pulley 40 is connected to the first belt pulley 39 through a synchronous belt 41; it is supported by a second bearing 32, and the second bearing 32 is installed and fixed by a second bearing pressing plate 22. The second connecting shaft 20 is connected to a third connecting shaft 23 through a coupling 43. The inside of the third connecting shaft 23 passes through a displacement rod 28. The lower end of the displacement rod 28 is connected to a threaded tightening member 29 through a threaded tightening transmission member 27.

[0030] In the first screw gun 2, the motor 42 serves as the power source of the first screw gun 2 and is fixedly installed on the tensioning member 16 through the motor mounting seat 17. The first bearing and the first connecting shaft 19 are fixedly installed through a circlip. After the first pulley 39 is connected to the first connecting shaft 19 through a flat key, it is fixedly installed through a circlip, and then connected to the output end of the motor 42 through a flat key and fixed by the first bearing pressing plate 18. The second bearing 32 and the second connecting shaft 20 are fixedly installed through a circlip.

[0031] In a possible implementation manner, in this embodiment, the first pulley 39 and the second pulley 40 are driven by a timing belt 41, and the position of the tensioning member 16 is adjusted by screws to adjust the tightness of the timing belt 41.

[0032] Furthermore, the screw gun of the present utility model further includes a first cylinder body 24, a second cylinder body 25, and a third cylinder body 30 connected in sequence. The second connecting shaft 20 and the third connecting shaft 23 are arranged inside the first cylinder body 24. A spring 37 is placed inside the second cylinder body 25. The displacement rod 28 passes through the inside of the spring 37 and is connected to the thread tightening transmission member 27. A sleeve 26 is arranged inside the second cylinder body 25. The sleeve 26 is sleeved on the outer periphery of the end of the third connecting shaft 23. A third bearing is fixedly installed inside the second cylinder body 25 through a circlip for a hole, and the inner ring of the third bearing installs and fixes the sleeve 26 through a cover plate 31.

[0033] In a possible implementation manner, the screw gun further includes a housing 15 arranged at the top. Among them, the motor mounting seat 17, the tensioning member 16, the first bearing, the first bearing pressing plate 18, the first connecting shaft 19, the first pulley 39, the timing belt 41, the second pulley 40, the second bearing pressing plate 22, the second bearing 32, and the tops of the second connecting shaft 20 and the displacement rod 28 are all arranged inside the housing 15. The first cylinder body 24, the second cylinder body 25, and the third cylinder body 30 are sequentially connected to the lower surface of the housing 15.

[0034] In a possible implementation manner, in this embodiment, the sleeve 26 and the third connecting shaft 23 are first connected through a flat key, and then the second cylinder body 25 is fixed. The third cylinder body 30 and the second cylinder body 25 are fixedly installed through screws.

[0035] Furthermore, an upper cover plate is provided on the upper surface of the housing 15 of the present utility model. A graphite sleeve 44, a proximity switch 35 and a proximity sensor 34 are provided on the upper surface of the upper cover plate. The graphite sleeve 44 is connected to the top of the displacement rod 28. The proximity switch 35 is installed on one side of the graphite sleeve 44 through a sensor connecting plate 14. The proximity sensor 34 judges whether the threaded tightening member 29 is screwed in or out by detecting the graphite sleeve 44. A counting member 21 is installed on the top of the second connecting shaft 20. The second connecting shaft 20 drives the counting member 21 to rotate. The number of turns of the rotation of the counting member 21 is detected by the proximity switch 35 to measure the depth of the screw gun screwed in.

[0036] In a possible implementation manner, the graphite sleeve 44 and the top of the third connecting shaft 23 are connected by interference fit. The second pulley 40 and the counting member 21 are connected to the second connecting shaft 20 by flat keys, and then fixed by elastic retaining rings, and then installed on the housing 15, and then installed and fixed by the second bearing pressing plate 22.

[0037] In a possible implementation manner, a rubber pad 38 is installed on the threaded tightening member 29, and contacts the threaded hole of the target structural member through the rubber pad 38.

[0038] As Figure 7 shown, in a possible implementation manner, the air circuit module 11 controls the action direction and action sequence of the motor 42 of the corresponding screw gun by changing the intake and exhaust of the solenoid valve. The robot can quickly switch the fixture type through the flange 9. The circuit module 10 is mainly used to control the action of the solenoid valve in the air circuit component and supply power to the proximity sensor 34 and the proximity switch 35 to realize signal feedback acquisition. The air circuit module 11 provides the inlet and outlet of the gas for the screw gun fixture.

[0039] The action process of the first screw gun 2 is as follows: The first pulley 39 installed on the motor 42 is driven to rotate by the motor 42. The power of the first pulley 39 is transmitted to the second pulley 40 through the synchronous belt 41. The second pulley 40 transmits the power to the third connecting shaft 23 through the coupling 43. The third connecting shaft 23 is connected to the sleeve 26 by a flat key, and the threaded tightening transmission member 27 is connected to the sleeve 26 through its own structural characteristics. Therefore, the power is transmitted to the threaded tightening transmission member 27. Finally, the threaded tightening member 29 is connected to the threaded tightening transmission member 27 through its own structural characteristics, and the power is transmitted to the threaded tightening member 29 to realize the rotation of the first screw gun 2. The rotation or screwing out of the threaded tightening member 29 is realized by the forward and reverse rotation of the motor 42. The proximity sensor 34 judges whether the threaded tightening member 29 is screwed in or out by detecting the graphite sleeve 44 installed on the displacement rod 28. The proximity switch 35 detects the number of turns of the rotation of the counting member 21 to roughly measure the depth of the screw gun screwed in. The structure and installation method of the second screw gun 3 in this embodiment are the same as those of the first screw gun 2. Similarly, its action principle is the same as that of the first screw gun 2.

[0040] When the utility model is in use, for the handling and installation of large structural components, in order to facilitate handling and installation, a non-installation plane or a non-important installation plane can be found on the large structural component. According to the distance dimensions of the four threaded tightening parts of the screw gun on the plane, threaded holes with corresponding distance dimensions are drilled on the large structural component. The robot carries the screw gun fixture of the utility model, and the threaded tightening parts on the screw gun are screwed into the threaded holes on the large structural component by controlling the solenoid valve. At this time, the large structural component can be clamped by the robot, thus realizing the high-efficiency handling and installation of the large structural component.

[0041] The above are only the preferred embodiments of the utility model, and are not used to limit the technical solution of the utility model. Those skilled in the art should understand that without departing from the spirit and principle of the utility model, the technical solution can also be subject to several simple modifications and substitutions, and these modifications and substitutions also fall within the protection scope covered by the claims.

Claims

1. A screw gun fixture for a robot, characterized in that: The invention comprises a flange assembly (1), a first connecting plate (5) and a second connecting plate (6) which are arranged in sequence from top to bottom. The flange assembly (1) comprises a flange plate (9). The upper surface of the flange plate (9) is provided with a circuit module (10) and a gas path module (11). The lower surface of the flange plate (9) is provided with a flange connecting plate (12). The flange connecting plate (12) is connected to the first connecting plate (5) via a first connecting support (7). The first connecting plate (5) is connected to the second connecting plate (6) via a second connecting support (8). A plurality of screw guns are arranged in the space between the flange connecting plate (12) and the first connecting plate (5) and between the first connecting plate (5) and the second connecting plate (6). The screw guns are connected to the circuit module (10) and the gas path module (11). The gas path module (11) drives the screw guns to rotate under the control of the circuit module (10). The screw guns match the threaded holes pre-processed on the target structural component. After tightening, the target structural component can be transported and installed.

2. The robot screw gun fixture according to claim 1, characterized in that: A plurality of the first connecting struts (7) and the second connecting struts (8) are provided and are evenly arranged around the flange connecting plate (12) and the first connecting plate (5); Two first screw guns (2) and two second screw guns (3) are centrally symmetrically arranged in the space between the flange connecting plate (12) and the first connecting plate (5) and between the first connecting plate (5) and the second connecting plate (6).

3. The screw gun fixture for a robot according to claim 1, characterized in that: The screw gun comprises a motor mounting seat (17), a motor (42) is mounted on the lower surface of the motor mounting seat (17), a tensioning member (16) is mounted on the upper surface of the motor mounting seat (17), a first connecting shaft (19) is mounted on the output end of the motor (42), the first connecting shaft (19) is mounted and fixed with a first bearing via a shaft elastic retaining ring, the upper surface of the tensioning member (16) is mounted and fixed with a first bearing pressure plate (18), and the first connecting shaft (19) is mounted and fixed with a first pulley (39) via a shaft elastic retaining ring; and also comprises a second connecting shaft (20) arranged parallel to the first connecting shaft (19) The second connecting shaft (20) is fixedly mounted on the second pulley (40) through an elastic retaining ring for the shaft, and the second pulley (40) is connected to the first pulley (39) through a synchronous belt (41); the second connecting shaft (20) is supported by a second bearing (32), and the second bearing (32) is fixedly mounted through a second bearing pressure plate (22); the second connecting shaft (20) is connected to the third connecting shaft (23) through a coupling (43), and the interior of the third connecting shaft (23) passes through a displacement rod (28), and the lower end of the displacement rod (28) is connected to a threaded tightening member (29) through a threaded tightening transmission member (27).

4. The screw gun fixture for a robot according to claim 3, characterized in that: The screw gun further comprises a first barrel (24), a second barrel (25) and a third barrel (30) which are connected in sequence, the second connecting shaft (20) and the third connecting shaft (23) are arranged in the first barrel (24), a spring (37) is placed in the second barrel (25), and the displacement rod (28) passes through the inside of the spring (37) and is connected to the threaded tightening transmission member (27).

5. The screw gun fixture for a robot according to claim 4, characterized in that: A sleeve (26) is arranged inside the second cylinder (25), and the sleeve (26) is sleeved on the outer periphery of the end of the third connecting shaft (23). The third bearing is fixedly mounted by an elastic retaining ring through a hole inside the second cylinder (25), and the inner ring of the third bearing is fixedly mounted by the sleeve (26) through a cover plate (31).

6. The screw gun fixture for a robot according to claim 5, characterized in that: The screw gun also includes a shell (15) arranged at the top, and the motor mounting seat (17), the tensioning member (16), the first bearing, the first bearing pressure plate (18), the first connecting shaft (19), the first pulley (39), the synchronous belt (41), the second pulley (40), the second bearing pressure plate (22), the second bearing (32) and the top of the second connecting shaft (20) and the displacement rod (28) are all arranged inside the shell (15); the first cylinder (24), the second cylinder (25) and the third cylinder (30) are sequentially connected to the lower surface of the shell (15).

7. The screw gun fixture for a robot according to claim 6, characterized in that: The upper surface of the housing (15) is provided with an upper cover plate, and the upper surface of the upper cover plate is provided with a graphite sleeve (44), a proximity switch (35) and a proximity sensor (34). The graphite sleeve (44) is connected to the top of the displacement rod (28). The proximity switch (35) is installed on one side of the graphite sleeve (44) through the sensor connecting plate (14). The proximity sensor (34) determines whether the threaded tightening member (29) is screwed in or out by detecting the graphite sleeve (44). A counting member (21) is installed on the top of the second connecting shaft (20). The second connecting shaft (20) drives the counting member (21) to rotate. The number of rotations of the counting member (21) is detected by the proximity switch (35), so as to measure the screwing depth of the screw gun.

8. The screw gun fixture for a robot according to claim 7, characterized in that: The graphite sleeve (44) is connected to the top of the third connecting shaft (23) by interference fit, the second pulley (40) and the counting member (21) are connected to the second connecting shaft (20) by a flat key, fixed by an elastic retaining ring and installed on the housing (15), and fixed by a second bearing pressure plate (22).

9. The screw gun fixture for a robot according to claim 3, characterized in that: The threaded tightening member (29) is provided with a rubber pad (38) and contacts the threaded hole of the target structural member through the rubber pad (38).

10. The screw gun fixture for a robot according to claim 3, characterized in that: The air path module (11) controls the action direction and action sequence of the motor (42) of the corresponding screw gun by changing the air inlet and air outlet of the solenoid valve.

Images