Full-automatic multi-head tapping machine for precision machining of strain clamp of power transmission line engineering stringing

Abstract

The present application relates to the technical field of tapping machine, and more particularly to a full-automatic multi-head tapping machine for precision machining of strain clamp for transmission line engineering stringing, comprising a machine tool, outer side plates are fixedly connected to the top of the machine tool on both sides, a drilling machine and a tapping machine are installed on the side of the outer side plates facing each other in sequence, the pure mechanical self-adaptive clamping structure of the inclined plate guide linkage inner support arm replaces the traditional hydraulic clamp, only the inclination angle of the inclined plate needs to be adjusted to be compatible with multiple specifications of the strain clamp, the spatial separation and parallel operation of the drilling and tapping processes are realized by cooperating with the annular transmission chain, the beat waste of serial processing is eliminated, and the machining posture is double-locked by using the inner and outer limiting tracks, the hole position skew problem caused by the clamping vibration of the special-shaped casting is solved, and the feeding and discharging processes are simplified by the gravity flow of the sliding rod, so that the machining efficiency and the product qualification rate are significantly improved synchronously.

Description

Technical Field

[0001] This invention relates to the field of tapping machine technology, and in particular to a fully automatic multi-head tapping machine for precision machining of tension clamps used in power transmission line engineering. Background Technology

[0002] In the field of power fitting manufacturing, the processing quality of tension clamps with pull plates is directly related to the safe operation of transmission lines. These clamps are mainly assembled with other fittings through pull plate ears on both sides, so the drilling and tapping accuracy of the ears is crucial.

[0003] Currently, the industry mostly uses hydraulic clamps for fixed-point clamping when processing the ears on both sides of tension clamps for tension plates. The typical workflow is as follows: the clamp is forcefully clamped and fixed by the hydraulic mechanism, and drilling is performed first; after drilling is completed, the hydraulic mechanism is released or held, and the equipment moves the workpiece to the tapping position for tapping; after tapping is completed, the workpiece is returned to the unloading position, and then loaded for the next cycle.

[0004] However, this operating mode still has some problems: drilling and tapping are performed in separate steps, and when one station is working, the other station is idle. In particular, the tapping process is time-consuming, causing the drilling equipment to be in a waiting state for most of the time, resulting in low overall processing efficiency. In order to ensure processing stability, hydraulic clamping usually requires a precise positioning reference. Existing clamping methods are inconvenient to adjust when dealing with wire clamps of different specifications, and excessive clamping force can easily cause deformation of thin-walled tension plates, while insufficient clamping force will cause vibration during tapping, affecting thread accuracy. Existing automated equipment is difficult to achieve automatic separation and orderly arrangement of workpieces during loading, which greatly reduces the automation level of the production line. Therefore, a fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art by proposing a fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering includes a machine tool. Both sides of the top of the machine tool are fixedly connected to outer plates. A drilling machine and a tapping machine are sequentially installed on the opposite side of the outer plates. Two symmetrically distributed inner plates are fixedly connected to the middle of the top of the machine tool. An outer limit rail is fixedly connected to the opposite side of the inner plates. An inner limit rail is set inside the outer limit rail. The inner limit rail is fixedly connected to the inner plate. A transmission chain is set inside the inner limit rail. The transmission chain is sleeved on the outside of five drive shafts. The drive shafts are rotatably connected to the inner plates.

[0008] A load-bearing mechanism is provided on one side of the transmission chain, which includes a fixed block, a fixed rod is fixedly connected to one side of the fixed block, a support frame is fixedly connected to both ends of the fixed rod, a mounting plate is fixedly connected to the top of the support frame, a tension clamp body is placed on the top of the mounting plate, and ears are provided on both sides of the tension clamp body.

[0009] A bottom support plate is fixed to the bottom of the support frame. An upward pushing mechanism is slidably connected to the bottom support plate. A long shaft is rotatably connected inside the mounting plate. Two sets of fixing mechanisms are installed on the long shaft. The upward pushing mechanism moves to drive the fixing mechanisms to clamp the inside of the tension clamp body.

[0010] The inner side of the transmission chain is also equipped with a central support rod, and the central support rod is equipped with an adjustment mechanism at the corresponding position of the drilling machine and the tapping machine.

[0011] Preferably, slide rods are fixed to both sides of the mounting plate, and the slide rods are limited by the track formed by the outer limit track and the inner limit track.

[0012] Preferably, two separation rods are fixed to the top of the mounting plate.

[0013] Preferably, the pushing mechanism includes a push block, which is slidably connected to the bottom support plate via slide rails on both sides, and a spring is fixed between the bottom of the push block and the bottom support plate.

[0014] Preferably, the fixing mechanism includes two inner clamping plates and two connecting arms. The inner clamping plates are rotatably connected to one end of the connecting arms. The bottom ends of the two connecting arms are respectively fixed with a second rotating shaft and two first rotating shafts. The second rotating shaft and the two first rotating shafts are rotatably connected to a long shaft. The bottom of the second rotating shaft is fixed with a base rod, and the bottom of the two first rotating shafts is fixed with the same base rod.

[0015] Preferably, the adjustment mechanism includes a bearing plate, on which two threaded rods are rotatably connected. An adjustment rod is threadedly connected to the outer wall of the threaded rods. The bearing plate is fixedly connected to the inner side plate near the drilling machine.

[0016] Preferably, the adjusting rod is slidably connected to the inner side plate and the middle support rod through the opened slide groove, and the other end of the adjusting rod is rotatably connected to the connecting shaft, and the same inclined plate is fixed to one side of the two connecting shafts.

[0017] Preferably, bracket one and bracket two are fixedly connected to both ends of the two inner side plates respectively. A feeding slide rod is fixedly connected to the top of bracket one, and a discharging slide rod is fixedly connected to the top of bracket two. A stop block is fixedly connected to the end of the feeding slide rod.

[0018] Compared with existing technologies, the advantages of this invention are as follows:

[0019] This invention replaces traditional hydraulic clamps with a purely mechanical adaptive clamping structure using a slant-guided linkage inner support arm. It can accommodate multiple specifications of tension clamps by simply adjusting the slant angle. Combined with a ring transmission chain, it enables spatial separation and parallel operation of drilling and tapping processes, eliminating cycle time waste in serial processing. At the same time, it uses internal and external limit rails to lock the processing posture, which not only solves the problem of hole misalignment caused by clamping vibration of irregular castings, but also simplifies the loading and unloading process through sliding bar gravity flow, thus significantly improving processing efficiency and product qualification rate. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is the present invention. Figure 1 Schematic diagram of the structure at point A in the middle;

[0022] Figure 3 This is a front view structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the inner side plan view of the outer side plate of the present invention;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the inner side of the outer plate of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the mounting plate of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure at the long axis of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the stop block in this invention.

[0028] In the diagram: 1. Machine tool; 2. Loading slide bar; 3. Support 1; 4. Outer side plate; 5. Tension clamp body; 6. Drilling machine; 7. Tapping machine; 8. Support 2; 9. Unloading slide bar; 10. Inner side plate; 11. Bearing plate; 12. Adjusting rod; 13. Threaded rod; 14. Inclined plate; 15. Mounting plate; 16. Outer limit rail; 17. Middle support rod; 18. Transmission chain; 19. Inner limit rail; 20. Ear; 21. Bottom support plate; 22. Support frame; 23. Rotating shaft two; 24. Separating rod; 25. Slide rod one; 26. Fixing rod; 27. Fixing block; 28. Spring; 29. ​​Push block; 30. Slide rail; 31. Inner clamping plate; 32. Connecting arm; 33. Rotating shaft one; 34. Bottom rod one; 35. Bottom rod two; 36. Long shaft; 37. Stop block; 38. Drive shaft; 39. Connecting shaft. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Reference Figures 1-8 A fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering includes a machine tool 1. Both sides of the top of the machine tool 1 are fixedly connected to outer plates 4. A drilling machine 6 and a tapping machine 7 are installed sequentially on the opposite side of the outer plates 4. Two symmetrically distributed inner plates 10 are fixedly connected to the middle of the top of the machine tool 1. An outer limit rail 16 is fixedly connected to the opposite side of the inner plates 10. An inner limit rail 19 is provided inside the outer limit rail 16. The inner limit rail 19 is fixedly connected to the inner plates 10. A transmission chain 18 is provided inside the inner limit rail 19. The transmission chain 18 is sleeved on the outside of five drive shafts 38. The drive shafts 38 are rotatably connected to the inner plates 10.

[0032] The two inner side plates 10 are respectively fixed to the two ends of the bracket 1 3 and bracket 2 8. The top of the bracket 1 3 is fixed to the feeding slide rod 2, the top of the bracket 2 8 is fixed to the discharging slide rod 9, and the end of the feeding slide rod 2 is fixed to the stop block 37.

[0033] A load-bearing mechanism is provided on one side of the transmission chain 18, which includes a fixing block 27. A fixing rod 26 is fixedly connected to one side of the fixing block 27. A support frame 22 is fixedly connected to both ends of the fixing rod 26. A mounting plate 15 is fixedly connected to the top of the support frame 22. A tension clamp body 5 is placed on the top of the mounting plate 15. Ears 20 are provided on both sides of the tension clamp body 5.

[0034] In this embodiment, the hollowed-out portion of the tension clamp body 5 is hung on the feeding slide bar 2. A drive shaft 38, driven by an external motor, moves the fixing block 27 and the fixing rod 26 via the transmission chain 18, thereby moving the entire support frame 22 and the components on the mounting plate 15. When the components move to below the end of the feeding slide bar 2, the mounting plate 15 gradually supports the bottom tension clamp body 5 of the feeding slide bar 2. The separating rod 24 is used to separate adjacent tension clamp bodies 5, and then the tension clamp body 5 falls onto the mounting plate 15.

[0035] Among them, the bottom of the support frame 22 is fixedly connected to the bottom support plate 21, and the bottom support plate 21 is slidably connected to the upward push mechanism. The mounting plate 15 is rotatably connected to the long shaft 36, and two sets of fixing mechanisms are installed on the long shaft 36. The upward push mechanism moves to drive the fixing mechanism to clamp the inside of the tension clamp body 5.

[0036] The inner side of the transmission chain 18 is also provided with a central support rod 17, and the central support rod 17 is provided with an adjustment mechanism at the position corresponding to the drilling machine 6 and the tapping machine 7.

[0037] Both sides of the mounting plate 15 are fixed with slide rods 25, which are limited by the track formed by the outer limiting track 16 and the inner limiting track 19.

[0038] Two separation rods 24 are fixed to the top of the mounting plate 15;

[0039] The pushing mechanism includes a push block 29, which is slidably connected to the bottom support plate 21 via slide rails 30 on both sides. A spring 28 is fixed between the bottom of the push block 29 and the bottom support plate 21.

[0040] The fixing mechanism includes two inner clamping plates 31 and two connecting arms 32. The inner clamping plates 31 are rotatably connected to one end of the connecting arms 32. The bottom ends of the two connecting arms 32 are respectively fixed with a second rotating shaft 23 and two first rotating shafts 33. The second rotating shaft 23 and the two first rotating shafts 33 are rotatably connected to the long shaft 36. The bottom of the second rotating shaft 23 is fixed with a bottom rod 34, and the bottom of the two first rotating shafts 33 is fixed with the same bottom rod 35.

[0041] In this embodiment, when the push block 29 abuts against the inclined plate 14 during the movement of the transmission chain 18, the push block 29 moves upward, which will drive the bottom rod 1 34 and the bottom rod 2 35 to open. Through the rotating shaft 2 23 and the rotating shaft 1 33, the two connecting arms 32 and the connecting arms 32 support and fix the inside of the tension clamp body 5. Since the size of the tension clamp body 5 varies, it is only necessary to adjust the inclination of the inclined plate 14 to adapt to the tension clamp body 5 of different sizes.

[0042] The adjustment mechanism includes a support plate 11, on which two threaded rods 13 are rotatably connected. An adjustment rod 12 is threadedly connected to the outer wall of the threaded rods 13. The support plate 11 is fixedly connected to the inner side plate 10 on the side near the drilling machine 6.

[0043] The adjusting rod 12 is slidably connected to the inner side plate 10 and the middle support rod 17 through the opening of the sliding groove. The other end of the adjusting rod 12 is rotatably connected to the connecting shaft 39, and the same inclined plate 14 is fixed to one side of the two connecting shafts 39.

[0044] In this embodiment, the inclination of the inclined plate 14 can be adjusted by rotating the threaded rod 13 with a tool so that the threaded rod 13 can drive the adjusting rod 12 to move up and down. When the tension clamp body 5 moves to both sides of the drilling machine 6, the support frame 22 at the bottom of the entire mounting plate 15 contacts the top of the middle support rod 17. The slide rod 25 is limited by the outer limit rail 16 and the inner limit rail 19, and the displacement of the push block 29 is limited by the inclined plate 14. Therefore, the process of the drilling machine 6 extending to drill the ears 20 on both sides of the tension clamp body 5 will be very stable.

[0045] The inner side of the transmission chain 18 is equipped with several bearing mechanisms. When the tension clamp body 5, which has been drilled by the drilling machine 6, moves to the tapping machine 7, the tapping machine 7 taps the ear 20, while the drilling machine 6 drills the tension clamp body 5 on the next mounting plate 15. The processing efficiency is extremely high. After the processing is completed, when the push block 29 is released from the last inclined plate 14, the inner clamping plate 31 releases the clamping of the connecting arm 32, and the hollow part inside the tension clamp body 5 will naturally hang on the unloading slide bar 9 for unloading.

[0046] Working principle: The hollowed-out part of the tension clamp body 5 is hung on the feeding slide bar 2. A drive shaft 38 is driven by an external motor, which drives the fixed block 27 and the fixed rod 26 to move through the transmission chain 18. This causes the entire support frame 22 and the components on the mounting plate 15 to move. When the components move to below the end of the feeding slide bar 2, the mounting plate 15 gradually supports the bottom tension clamp body 5 of the feeding slide bar 2. The separating rod 24 is used to separate adjacent tension clamp bodies 5. Subsequently, the tension clamp body... The clamp body 5 rests on the mounting plate 15. When the push block 29 abuts against the inclined plate 14 during the movement of the transmission chain 18, the push block 29 moves upward, which will drive the bottom rod 1 34 and the bottom rod 2 35 to open. Through the rotating shaft 2 23 and the rotating shaft 1 33, the two connecting arms 32 and the connecting arms 32 support and fix the inside of the tension clamp body 5. Since the tension clamp body 5 has different sizes, it is only necessary to adjust the inclination of the inclined plate 14 to adapt to different sizes of tension clamp body 5.

[0047] Rotating the threaded rod 13 with a tool allows the adjusting rod 12 to move up and down, thus adjusting the inclination of the inclined plate 14. When the tension clamp body 5 moves to both sides of the drilling machine 6, the support frame 22 at the bottom of the entire mounting plate 15 contacts the top of the middle support rod 17. The slide rod 25 is limited by the outer limit rail 16 and the inner limit rail 19, and the displacement of the push block 29 is limited by the inclined plate 14. Therefore, the drilling process of the drilling machine 6 extending to drill the ears 20 on both sides of the tension clamp body 5 will be very stable.

[0048] The inner side of the transmission chain 18 is equipped with several bearing mechanisms. When the tension clamp body 5, which has been drilled by the drilling machine 6, moves to the tapping machine 7, the tapping machine 7 taps the ear 20, while the drilling machine 6 drills the tension clamp body 5 on the next mounting plate 15. The processing efficiency is extremely high. After the processing is completed, when the push block 29 is released from the last inclined plate 14, the inner clamping plate 31 releases the clamping of the connecting arm 32, and the hollow part inside the tension clamp body 5 will naturally hang on the unloading slide bar 9 for unloading.

[0049] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fully automatic multi-head tapping machine for precision machining of tension clamps used in power transmission line engineering, comprising a machine tool (1), characterized in that, The top of the machine tool (1) is fixed with outer side plates (4) on both sides. A drilling machine (6) and a tapping machine (7) are installed on the opposite side of the outer side plates (4). Two symmetrically distributed inner side plates (10) are fixed in the middle of the top of the machine tool (1). An outer limit rail (16) is fixed on the opposite side of the inner side plates (10). An inner limit rail (19) is set inside the outer limit rail (16). The inner limit rail (19) is fixed to the inner side plate (10). A transmission chain (18) is set inside the inner limit rail (19). The transmission chain (18) is sleeved on the outside of the five drive shafts (38). The drive shafts (38) are rotatably connected to the inner side plates (10). A load-bearing mechanism is provided on one side of the transmission chain (18), which includes a fixed block (27). A fixed rod (26) is fixedly connected to one side of the fixed block (27). A support frame (22) is fixedly connected to both ends of the fixed rod (26). A mounting plate (15) is fixedly connected to the top of the support frame (22). A tension clamp body (5) is placed on the top of the mounting plate (15). Ears (20) are provided on both sides of the tension clamp body (5). The bottom of the support frame (22) is fixedly connected to a bottom support plate (21), and a push mechanism is slidably connected on the bottom support plate (21). A long shaft (36) is rotatably connected inside the mounting plate (15), and two sets of fixing mechanisms are installed on the long shaft (36). The fixing mechanism is driven by the movement of the push mechanism to clamp the tension clamp body (5) inside. The inner side of the transmission chain (18) is also provided with a central support rod (17), and the central support rod (17) is provided with an adjustment mechanism at the corresponding position of the drilling machine (6) and the tapping machine (7).

2. The fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering as described in claim 1, characterized in that: Both sides of the mounting plate (15) are fixed with slide rods (25), which are limited by the track formed by the outer limit track (16) and the inner limit track (19).

3. The fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering as described in claim 1, characterized in that: Two separation rods (24) are fixed to the top of the mounting plate (15).

4. The fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering as described in claim 1, characterized in that: The push mechanism includes a push block (29), which is slidably connected to the bottom support plate (21) via slide rails (30) on both sides. A spring (28) is fixed between the bottom of the push block (29) and the bottom support plate (21).

5. The fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering as described in claim 1, characterized in that: The fixing mechanism includes two inner clamping plates (31) and two connecting arms (32). The inner clamping plates (31) are rotatably connected to one end of the connecting arms (32). The bottom ends of the two connecting arms (32) are respectively fixed with a second rotating shaft (23) and two first rotating shafts (33). The second rotating shaft (23) and the two first rotating shafts (33) are rotatably connected to the long shaft (36). The bottom of the second rotating shaft (23) is fixed with a bottom rod (34), and the bottom of the two first rotating shafts (33) is fixed with the same bottom rod (35).

6. The fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering as described in claim 1, characterized in that: The adjustment mechanism includes a support plate (11), on which two threaded rods (13) are rotatably connected. An adjustment rod (12) is threadedly connected to the outer wall of the threaded rods (13). The support plate (11) is fixedly connected to the inner side plate (10) on the side near the drilling machine (6).

7. The fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering as described in claim 6, characterized in that: The adjusting rod (12) is slidably connected to the inner side plate (10) and the middle support rod (17) through the opening of the slide groove. The other end of the adjusting rod (12) is rotatably connected to the connecting shaft (39). The same inclined plate (14) is fixed to one side of the two connecting shafts (39).

8. The fully automatic multi-head tapping machine for precision machining of tension clamps for power transmission line engineering as described in claim 1, characterized in that: The two inner side plates (10) are respectively fixed to the two ends of the bracket one (3) and the bracket two (8). The top of the bracket one (3) is fixed to the feeding slide rod (2), the top of the bracket two (8) is fixed to the unloading slide rod (9), and the end of the feeding slide rod (2) is fixed to the stop block (37).

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