Automatic clamping device for coal machine top beam

Abstract

The utility model relates to the technical field of automatic welding, and discloses a coal machine top beam automatic clamping device which comprises a headstock tool, a tailstock tool is arranged on the right side of the headstock tool, and a first headstock frame is arranged on the outer side of the headstock tool. According to the automatic clamping device for the coal machine top beam, a first driving motor, a second driving motor and a third driving motor drive a first lead screw, a second lead screw and a third lead screw to control a first movable plate, a second movable plate and a third movable plate to control a pressing component, a supporting platform and a clamping platform, a workpiece is convenient to install, and the automatic clamping device has the advantage of being high in repeated positioning precision of workpiece installation; the pressing device is ingenious in design and high in equipment automation degree, the working efficiency is greatly improved, the occupied area of the equipment is greatly reduced, the purpose of reducing the production cost is achieved, and the welding seam forming quality of a workpiece can be guaranteed; and by adjusting the positions of clamping components such as the headstock tool and the tailstock tool, workpieces of various specifications can be mounted and welded.

Description

Technical Field

[0001] The utility model relates to the technical field of automated welding, in particular to an automatic clamping device for a coal machine top beam. Background Art

[0002] Coal machine roof beam usually refers to a device used in coal mines to support coal seams and protect mine walls. Coal machine roof beams are widely used on the working face of mines to provide support and protection to ensure the safety of miners and the stability of mines.

[0003] Traditionally, manual welding is used for welding the top beam structural parts of coal mining machines. During the manual welding process, large welding deformation is caused, the weld forming quality is relatively poor, and defects such as pores and welding slag are easily generated. The welding quality is unstable. The positioning accuracy of general tooling and clamping workpieces is not high, which cannot meet the high requirements of repeated positioning accuracy of robot automatic welding. The work efficiency is relatively low. The top beam structural parts of the coal mining machine have been machined and welded before, and due to the large deformation, they cannot meet the assembly requirements. In order to ensure the assembly quality, the original user designed multiple sets of special welding tools and multiple equipment, which have poor versatility and high labor intensity for workers. Multiple equipment occupies a large area. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an automatic clamping device for the top beam of a coal machine, which can effectively solve the problems in the prior art of low positioning accuracy of workpiece clamping, failure to meet the requirements of high repeated positioning accuracy of robot automatic welding, poor versatility and large equipment footprint.

[0005] The technical solution adopted by the utility model is: an automatic clamping device for a top beam of a coal machine, comprising a head frame tooling, a tail frame tooling is arranged on the right side of the head frame tooling, a head frame frame 1 is arranged on the outer side of the head frame tooling, a slide rail 1 is fixedly connected to the outer side of the head frame frame 1, a bearing seat 1 is fixedly connected to the interior of the head frame frame 1, a driving motor 1 is fixedly connected to the outer side of the bearing seat 1, a screw rod 1 is rotatably connected to the interior of the head frame frame 1, a movable plate 1 is slidably connected to the outer side of the slide rail 1, a connecting block 1 is fixedly connected to the outer side of the movable plate 1, a clamping component is fixedly connected to the outer side of the connecting block 1, a limited frame 1 is fixedly connected to the outer side of the movable plate 1, a connecting block 2 is fixedly connected to the outer side of the connecting block 2, a supporting frame is fixedly connected to the outer side of the supporting frame, a supporting platform is fixedly connected to the outer side of the supporting frame, a detection photoelectric is fixedly connected to the outer side of the head frame tooling, a head frame frame 2 is arranged on the outer side of the head frame frame 2, and a slide rail 2 is fixedly connected to the outer side of the head frame The outer side of the movable plate is fixedly connected to the outer side of the movable plate, and the outer side of the movable plate is fixedly connected to the outer side of the movable plate. The outer side of the connecting block is fixedly connected to the clamping platform. A protective shell is provided on the inner side of the headstock frame two, and the outer side of the headstock frame one is rotatably connected to the headstock turntable. The outer side of the tailstock tooling is provided with a tailstock frame, and the outer side of the tailstock frame is fixedly connected to the slide rail three, and the outer side of the slide rail three is fixedly connected to the movable plate three. The inner side of the tailstock frame is fixedly connected to the bearing seat three, and the outer side of the bearing seat three is fixedly connected to the driving motor three. The inner side of the tailstock frame is rotatably connected to the screw rod three, and the outer side of the movable plate three is fixedly connected to the connecting block four, and a top device is provided inside the connecting block four, and a limiting frame two is provided on the outer side of the tailstock frame, and the outer side of the tailstock frame is rotatably connected to the tailstock turntable.

[0006] Preferably, the head frame frame 1 is provided with two identical ones, and the two head frame frame 1s are symmetrically distributed with respect to the head frame frame 2, and the head frame frame 2 and the two head frame frames 1 together form a "cross" structure.

[0007] Through the above technical solution, the clamping component, the supporting platform and the clamping platform are installed by using the head frame frame 1 and the head frame frame 2 to form a head frame tooling.

[0008] Preferably, the movable plate 1 and the movable plate 2 have the same specifications, the movable plate 1 is threadedly connected to the screw rod 1, the movable plate 2 is threadedly connected to the screw rod 2, the output shaft of the drive motor 1 is fixedly connected to the screw rod 1, the output shaft of the drive motor 2 is fixedly connected to the screw rod 2, and the threads at both ends of the screw rod 2 are opposite.

[0009] Through the above technical scheme, the driving motor 1 drives the screw rod 1 to rotate, thereby driving the movable plate 1 threadedly connected to the screw rod 1 to move along the direction of the slide rail 1, thereby controlling the distance between the clamping component and the support platform, and the driving motor 2 drives the screw rod 2 to rotate, thereby making the two movable plates 2 threadedly connected to the screw rod 2 approach each other along the direction of the slide rail 2, and making the clamping platforms approach each other to clamp the workpiece.

[0010] Preferably, the limit frame 1 is provided with two identical groups, and the two groups of the limit frame 1 are provided with the same number of four, one group of limit frame 1 is located at the end of the head frame frame 1 and the head frame frame 2, and the other group is located at the intersection of the head frame frame 1 and the head frame frame 2.

[0011] Through the above technical solution, the moving positions of the movable plate 1 and the movable plate 2 are limited by the limiting frame 1.

[0012] Preferably, the supporting platforms are provided with three identical ones, the detecting photoelectric devices are provided with two identical ones, and the two detecting photoelectric devices are located between the supporting platforms.

[0013] Through the above technical solution, the workpiece is clamped in the vertical direction by the support platform and the clamping component, and the photoelectric detection is performed to detect whether there is a workpiece that needs to be clamped.

[0014] Preferably, the movable plate three is consistent with the specifications of the movable plate one, and two identical movable plates three are provided, and the two movable plates three are symmetrically distributed about the tail frame, the output shaft of the drive motor three is fixedly connected to the screw rod three, the movable plate three is threadedly connected to the screw rod three, and the threads at both ends of the screw rod three are opposite.

[0015] Through the above technical solution, the driving motor three drives the screw rod three to rotate, so that the movable plate three threadedly connected to the screw rod three moves along the direction of the screw rod three, so that the two top devices on the two movable blocks three can position the circular hole of the workpiece and clamp the workpiece.

[0016] Preferably, the second limiting frame has the same specifications as the first limiting frame, and three identical second limiting frames are provided, and the three second limiting frames are arranged at equal intervals on the tail frame.

[0017] Through the above technical solution, the moving position of the movable plate three is limited by the limiting frame two.

[0018] Compared with the prior art, the utility model provides an automatic clamping device for the top beam of a coal machine, which has the following beneficial effects: the automatic clamping device for the top beam of a coal machine controls the clamping components, the supporting platform and the clamping platform by driving the screw rods 1, 2 and 3 through the driving motors 1, 2 and 3. The movable plates 1, 2 and 3 are controlled. The installation of the workpiece is relatively convenient and has the characteristics of high repeated positioning accuracy for the installation of the workpiece. The clamping device is cleverly designed and has a high degree of automation, which greatly improves the work efficiency. The space occupied by the equipment is greatly reduced, and the purpose of reducing the production cost is achieved, and the quality of the weld forming of the workpiece can be guaranteed. It also has the characteristics of high versatility. By adjusting the positions of clamping components such as the head frame tooling and the tail frame tooling, workpieces of various specifications can be installed and welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 The utility model head frame tooling structure schematic diagram Figure 1 ;

[0021] Figure 3 The utility model head frame tooling structure schematic diagram Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the tailstock tooling structure of the utility model Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the tailstock tooling structure of the utility model Figure 2 .

[0024] 1. Headstock tooling; 2. Tailstock tooling; 3. Headstock frame one; 4. Slide rail one; 5. Bearing seat one; 6. Drive motor one; 7. Screw rod one; 8. Movable plate one; 9. Connecting block one; 10. Clamping component; 11. Limiting frame one; 12. Connecting block two; 13. Supporting frame; 14. Supporting platform; 15. Detection photoelectric; 16. Headstock frame two; 17. Slide rail two; 18. Bearing seat two; 19. Drive motor two; 20. Screw rod two; 21. Movable plate two; 22. Connecting block three; 23. Clamping platform; 24. Protective shell; 25. Headstock turntable; 26. Tailstock frame; 27. Slide rail three; 28. Movable plate three; 29. ​​Bearing seat three; 30. Drive motor three; 31. Screw rod three; 32. Connecting block four; 33. Top device; 34. Limiting frame two; 35. Tailstock turntable. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1: Figure 1-5 As shown, the utility model provides an automatic clamping device for the top beam of a coal machine, comprising a head frame fixture 1, a tail frame fixture 2 is arranged on the right side of the head frame fixture 1, a head frame frame 3 is arranged on the outside of the head frame fixture 1, a slide rail 4 is fixedly connected to the outside of the head frame frame 3, a bearing seat 5 is fixedly connected to the inside of the head frame frame 3, a driving motor 6 is fixedly connected to the outside of the bearing seat 5, a screw rod 7 is rotatably connected to the inside of the head frame frame 3, a movable plate 8 is slidably connected to the outside of the slide rail 4, and a connecting rod 6 is fixedly connected to the outside of the movable plate 8. A connecting block 9 is fixedly connected to the outside of the connecting block 9 with a clamping component 10, a head frame frame 3 is fixedly connected to the outside of a limited frame 11, a movable plate 8 is fixedly connected to a connecting block 2 12, a connecting block 2 12 is fixedly connected to the outside of a supporting frame 13, a supporting frame 13 is fixedly connected to the outside of a supporting platform 14, a detecting photoelectric device 15 is fixedly connected to the outside of the supporting frame 13, a head frame frame 2 16 is arranged on the outside of the head frame tooling 1, a slide rail 2 17 is fixedly connected to the outside of the head frame frame 2 16, and the inside of the head frame frame 2 16 is fixedly connected to the outside of the head frame tooling 1. The bearing seat 2 is connected to the bearing seat 2 18, the outer side of the bearing seat 2 18 is fixedly connected to the driving motor 2 19, the inner side of the head frame 2 16 is rotatably connected to the screw rod 20, the outer side of the slide rail 2 17 is slidably connected to the movable plate 21, the outer side of the movable plate 21 is fixedly connected to the connecting block 3 22, the outer side of the connecting block 3 22 is fixedly connected to the clamping platform 23, the inner side of the head frame 2 16 is provided with a protective shell 24, the outer side of the head frame 1 3 is rotatably connected to the head frame turntable 25, the outer side of the tail frame tool 2 is provided with a tail frame 26, and the tail frame 2 6 is fixedly connected to a slide rail three 27 on the outside, a movable plate three 28 is fixedly connected to the outside of the slide rail three 27, a bearing seat three 29 is fixedly connected to the inside of the tail frame 26, a driving motor three 30 is fixedly connected to the outside of the bearing seat three 29, a screw rod three 31 is rotatably connected to the inside of the tail frame 26, a connecting block four 32 is fixedly connected to the outside of the movable plate three 28, a top device 33 is arranged inside the connecting block four 32, a limiting frame two 34 is arranged on the outside of the tail frame 26, and a tail frame turntable 35 is rotatably connected to the outside of the tail frame 26.

[0027] Specifically, the head frame frame 1 3 is provided with two identical ones, and the two head frame frames 1 3 are symmetrically distributed about the head frame frame 2 16. The head frame frame 2 16 and the two head frame frames 1 3 together form a "cross" structure. The advantage is that the head frame tooling 1 composed of the head frame frame 1 3 and the head frame frame 2 16 can be used to install the clamping component 10, the support platform 14 and the clamping platform 23.

[0028] Specifically, the movable plate 18 and the movable plate 21 have the same specifications, the movable plate 18 is threadedly connected to the screw rod 17, the movable plate 21 is threadedly connected to the screw rod 20, the output shaft of the drive motor 16 is fixedly connected to the screw rod 17, the output shaft of the drive motor 219 is fixedly connected to the screw rod 20, and the threads at both ends of the screw rod 20 are opposite. The advantage is that the drive motor 16 drives the screw rod 17 to rotate, thereby driving the movable plate 18 threadedly connected to the screw rod 17 to move along the direction of the slide rail 14, thereby controlling the distance between the clamping component 10 and the support platform 14, and the drive motor 219 drives the screw rod 20 to rotate, so that the two movable plates 21 threadedly connected to the screw rod 20 are close to each other along the direction of the slide rail 17, so that the clamping platforms 23 are close to each other to clamp the workpiece.

[0029] Specifically, two identical groups of limit frames 11 are provided, and both groups of limit frames 11 are provided with the same number of four. One group of limit frames 11 is located at the ends of the head frame frame 13 and the head frame frame 2 16, and the other group is located at the intersection of the head frame frame 3 and the head frame frame 2 16. The advantage is that the moving position of the movable plate 1 8 and the movable plate 2 21 is limited by the limit frames 11.

[0030] Embodiment 2: Figure 1-5 As shown, as an improvement to the previous embodiment.

[0031] Specifically, the supporting platforms 14 are provided with three identical ones, and the detecting photoelectric devices 15 are provided with two identical ones. The two detecting photoelectric devices 15 are located between the supporting platforms 14. The advantage is that the workpiece is clamped in the vertical direction by the supporting platform 14 and the clamping component 10, and the detecting photoelectric devices 15 detect whether there is a workpiece that needs to be clamped.

[0032] Specifically, the movable plate three 28 has the same specifications as the movable plate one 8, and two identical movable plates three 28 are provided. The two movable plates three 28 are symmetrically distributed about the tailstock frame 26, and the output shaft of the driving motor three 30 is fixedly connected to the screw rod three 31. The movable plate three 28 is threadedly connected to the screw rod three 31, and the threads at both ends of the screw rod three 31 are opposite. The advantage is that the driving motor three 30 drives the screw rod three 31 to rotate, so that the movable plate three 28 threadedly connected to the screw rod three 31 moves along the direction of the screw rod three 31, so that the two top devices 33 on the two movable blocks three 28 act to locate the circular hole of the workpiece and clamp the workpiece.

[0033] Specifically, the specifications of the second limit frame 34 are consistent with those of the first limit frame 11. The second limit frame 34 is provided with three identical ones, and the three second limit frames 34 are arranged at equal intervals on the tail frame 26. The advantage is that the movement position of the movable plate 3 28 is limited by the second limit frame 34.

[0034] Working principle: When in use, according to the specifications and models of the workpiece, the drive motor 16 and the drive motor 2 19 are started. The drive motor 16 drives the screw rod 17 to rotate, thereby driving the movable plate 18 threadedly connected to the screw rod 17 to move along the direction of the slide rail 4, thereby controlling the distance between the clamping component 10 and the support platform 14, and the drive motor 2 19 drives the screw rod 20 to rotate, so that the two movable plates 21 threadedly connected to the screw rod 20 are close to each other along the direction of the slide rail 17, so that the tooling reaches the pre-clamping position, and then the workpiece is hoisted by the gantry car, and the photoelectric detection 15 determines whether there is a workpiece that needs to be clamped. The workpiece is slowly placed directly above the support platform 14, and the top device 33 on the tail frame tooling 2 works together to locate the circular hole of the workpiece and then clamp it. The workpiece is clamped by the clamping platform 23 on the head frame tooling 1 to complete the positioning and clamping of the workpiece in the horizontal direction. Finally, the head frame clamping component 10 completes the positioning and clamping of the workpiece in the vertical direction. After the workpiece is fixed, the robot receives the information and welds according to the shape and size of the workpiece and the welding program pre-set by the robot.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic clamping device for a coal mining machine top beam, comprising a head frame fixture (1), characterized in that: A tailstock tooling (2) is arranged on the right side of the headstock tooling (1), a headstock frame (3) is arranged on the outside of the headstock tooling (1), a slide rail (4) is fixedly connected to the outside of the headstock frame (3), a bearing seat (5) is fixedly connected to the inside of the headstock frame (3), a driving motor (6) is fixedly connected to the outside of the bearing seat (5), a screw rod (7) is rotatably connected to the inside of the headstock frame (3), a movable plate (8) is slidably connected to the outside of the slide rail (4), a connecting block (9) is fixedly connected to the outside of the connecting block (9), and a clamping component ( 10), the outer side of the head frame frame 1 (3) is fixedly connected to a limit frame 1 (11), the outer side of the movable plate 1 (8) is fixedly connected to a connecting block 2 (12), the outer side of the connecting block 2 (12) is fixedly connected to a support frame (13), the outer side of the support frame (13) is fixedly connected to a supporting platform (14), the outer side of the support frame (13) is fixedly connected to a detection photoelectric (15), the outer side of the head frame tooling (1) is provided with a head frame frame 2 (16), the outer side of the head frame frame 2 (16) is fixedly connected to a slide rail 2 (17), the interior of the head frame frame 2 (16) is fixedly connected to a bearing seat 2 (18), the bearing seat 2 The outer side of the headstock frame (18) is fixedly connected to a driving motor 2 (19), the inner side of the headstock frame 2 (16) is rotatably connected to a screw rod 2 (20), the outer side of the slide rail 2 (17) is slidably connected to a movable plate 2 (21), the outer side of the movable plate 2 (21) is fixedly connected to a connecting block 3 (22), the outer side of the connecting block 3 (22) is fixedly connected to a clamping platform (23), the inner side of the headstock frame 2 (16) is provided with a protective shell (24), the outer side of the headstock frame 1 (3) is rotatably connected to a headstock turntable (25), the outer side of the tailstock tooling (2) is provided with a tailstock frame (26), the outer side of the tailstock frame (26) is fixedly connected to A slide rail three (27) is connected, the outer side of the slide rail three (27) is fixedly connected to a movable plate three (28), the interior of the tailstock frame (26) is fixedly connected to a bearing seat three (29), the outer side of the bearing seat three (29) is fixedly connected to a drive motor three (30), the interior of the tailstock frame (26) is rotatably connected to a screw rod three (31), the outer side of the movable plate three (28) is fixedly connected to a connecting block four (32), a top device (33) is arranged inside the connecting block four (32), a limit frame two (34) is arranged on the outer side of the tailstock frame (26), and the outer side of the tailstock frame (26) is rotatably connected to a tailstock turntable (35).

2. The automatic clamping device for the top beam of a coal machine according to claim 1 is characterized in that: The head frame frame one (3) is provided with two identical head frame frames one (3), and the two head frame frames one (3) are symmetrically distributed with respect to the head frame frame two (16). The head frame frame two (16) and the two head frame frames one (3) together form a "cross" structure.

3. The automatic clamping device for the top beam of a coal machine according to claim 1 is characterized in that: The movable plate 1 (8) and the movable plate 2 (21) have the same specifications. The movable plate 1 (8) is threadedly connected to the screw rod 1 (7), and the movable plate 2 (21) is threadedly connected to the screw rod 2 (20). The output shaft of the drive motor 1 (6) is fixedly connected to the screw rod 1 (7), and the output shaft of the drive motor 2 (19) is fixedly connected to the screw rod 2 (20). The threads at both ends of the screw rod 2 (20) are opposite.

4. The automatic clamping device for the top beam of a coal machine according to claim 1 is characterized in that: The limit frame one (11) is provided with two identical groups, and the two groups of the limit frame one (11) are provided with the same number of four. One group of limit frame one (11) is located at the end of the head frame frame one (3) and the head frame frame two (16), and the other group is located at the intersection of the head frame frame one (3) and the head frame frame two (16).

5. The automatic clamping device for the top beam of a coal machine according to claim 1 is characterized in that: The supporting platforms (14) are provided with three identical ones, and the detecting photoelectric devices (15) are provided with two identical ones, and the two detecting photoelectric devices (15) are located between the supporting platforms (14).

6. The automatic clamping device for the top beam of a coal machine according to claim 1 is characterized in that: The movable plate three (28) has the same specifications as the movable plate one (8), and two identical movable plates three (28) are provided. The two movable plates three (28) are symmetrically distributed about the tail frame (26). The output shaft of the drive motor three (30) is fixedly connected to the screw rod three (31), and the movable plate three (28) is threadedly connected to the screw rod three (31), and the threads at both ends of the screw rod three (31) are opposite.

7. The automatic clamping device for the top beam of a coal machine according to claim 1 is characterized in that: The second limiting frame (34) has the same specifications as the first limiting frame (11), and three identical second limiting frames (34) are provided, and the three second limiting frames (34) are arranged at equal intervals on the tail frame (26).

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