阅读说明：本技术 一种锻造工件钻孔加工的冷却循环机构 (Cooling circulation mechanism for drilling of forged workpiece ) 是由 何一帆 夏荣明 于 2021-08-18 设计创作，主要内容包括：本发明涉及锻造加工技术领域,且公开了一种锻造工件钻孔加工的冷却循环机构,包括固定座、收集箱和移动架,所述固定座的上表面固定连接有水箱,水箱的一侧外壁固定连接有第一电机,第一电机输出轴的一端穿过水箱并固定连接有连接杆,所述移动架的内部开设有第一滑槽,且连接杆与第一滑槽滑动连接,所述水箱的一侧内壁固定连接有定位架,且定位架与移动架滑动连接。本发明不仅能够通过刮板对过滤网板上的金属废屑进行充分的清理,提高了过滤网板的过滤效果,同时能够通过顶架与楔形块的配合使用,使装置自动下料,提高了装置的便捷性,还能够通过夹座对工件进行稳固夹持,方便后续钻头稳定的对工件进行加工,提高了装置的使用效果。(The invention relates to the technical field of forging processing, and discloses a cooling circulation mechanism for drilling processing of a forging workpiece, which comprises a fixed seat, a collecting box and a moving frame, wherein the upper surface of the fixed seat is fixedly connected with a water tank, the outer wall of one side of the water tank is fixedly connected with a first motor, one end of an output shaft of the first motor penetrates through the water tank and is fixedly connected with a connecting rod, a first sliding groove is formed in the moving frame, the connecting rod is in sliding connection with the first sliding groove, the inner wall of one side of the water tank is fixedly connected with a positioning frame, and the positioning frame is in sliding connection with the moving frame. The metal waste on the filter screen plate can be fully cleaned through the scraper, the filter effect of the filter screen plate is improved, meanwhile, the device can automatically discharge materials through the matching use of the top frame and the wedge-shaped block, the convenience of the device is improved, the workpiece can be stably clamped through the clamping seat, the subsequent drill bit can conveniently and stably process the workpiece, and the use effect of the device is improved.)

1. A cooling circulation mechanism for drilling of forged workpieces comprises a fixed seat (5), a collecting box (31) and a moving frame (26), and is characterized in that a water tank (7) is fixedly connected to the upper surface of the fixed seat (5), a first motor (6) is fixedly connected to the outer wall of one side of the water tank (7), one end of an output shaft of the first motor (6) penetrates through the water tank (7) and is fixedly connected with a connecting rod (28), a first sliding groove (27) is formed in the moving frame (26), the connecting rod (28) is in sliding connection with the first sliding groove (27), a positioning frame (34) is fixedly connected to the inner wall of one side of the water tank (7), the positioning frame (34) is in sliding connection with the moving frame (26), a third sliding groove (42) is formed in the bottom of the moving frame (26), a scraper (33) is movably connected with the third sliding groove (42), wave grooves (32) are formed in the inner walls of the two sides of the water tank (7), the scraping plate (33) is connected with the wave groove (32) in a sliding way, the inside of the water tank (7) is movably connected with a filter screen plate (16), the scraper (33) is contacted with the filter screen plate (16), the bottom of the filter screen plate (16) is fixedly connected with a plurality of telescopic rods (36), the telescopic rod (36) is fixed with the water tank (7), one side of the telescopic rod (36) is movably connected with a first spring (35), and both ends of the first spring (35) are respectively fixed with the telescopic rod (36) and the water tank (7), the upper surface of the fixed seat (5) is fixedly connected with the water pump (4), one end of the water inlet of the water pump (4) is fixed with the water tank (7), the upper surface of the fixed seat (5) is fixedly connected with a supporting column (2), one side of the supporting column (2) is fixedly connected with a cooling water pipe (3), and one end of the water outlet of the water pump (4) is fixed with the cooling water pipe (3).

2. The cooling circulation mechanism for drilling the forged workpiece according to claim 1, wherein two top frames (39) are fixedly connected to one side of the scraper (33), a second chute (38) is formed in one side of the water tank (7), a baffle (37) is movably connected to the inside of the second chute (38), a discharge hole (44) is formed in one side of the water tank (7), the baffle (37) is located in the discharge hole (44), two slide ways are formed in one side of the water tank (7), a wedge block (40) is movably connected to the inside of each slide way, the wedge block (40) is fixed to the baffle (37), the wedge block (40) is in contact with the top frames (39), a second spring (41) is fixedly connected to the top of the wedge block (40), the second spring (41) is fixed to the water tank (7), two guide rails (29) are fixedly connected to the outer wall of one side of the water tank (7), two clamping grooves (30) are formed in one side of the collecting box (31), and the clamping grooves (30) are connected with the guide rails (29) in a sliding mode.

3. The cooling circulation mechanism for drilling the forged workpiece, as recited in claim 2, is characterized in that one side of the supporting column (2) is fixedly connected with a mounting column, one end of the mounting column is fixedly connected with a mounting seat (9), one end of the cooling water pipe (3) is located above the mounting seat (9), a plurality of threaded rods (10) are movably connected inside the mounting seat (9), and one side of each threaded rod (10) is movably connected with a clamping seat (11).

4. The cooling circulation mechanism for drilling of a forged workpiece according to claim 3, one side of the supporting column (2) is fixedly connected with a fixed column (18), one side of the fixed column (18) is sleeved with a connecting cylinder (13), one end of the connecting cylinder (13) is movably connected with a fixed cylinder (12), the top end of the fixed cylinder (12) is fixedly connected with a semi-ring plate (20), one side of the semi-ring plate (20) is provided with a plurality of jacks (19), the fixed cylinder (12) is internally provided with slots, the semi-ring plate (20) is inserted into the slot, one side of the semi-ring plate (20) is provided with a connecting hole, the inside of one of the connecting hole and the jack (19) is movably connected with a bolt (23), one side of the bolt (23) is movably connected with a tension spring (25), and two ends of the tension spring (25) are respectively fixed with the connecting cylinder (13) and the bolt (23).

5. The cooling circulation mechanism for drilling the forged workpiece according to claim 4, wherein a second motor (21) is fixedly connected to the inside of the fixed cylinder (12), a drill bit (22) is fixedly connected to one end of an output shaft of the second motor (21), a rack (15) is fixedly connected to one side of the second motor (21), a clearance groove is formed in one side of the fixed cylinder (12), the rack (15) is slidably connected with the clearance groove, a rotating shaft is movably connected to one side of the fixed cylinder (12), a gear (17) is fixedly connected to one side of the rotating shaft, the gear (17) is meshed with the rack (15), and one end of the rotating shaft penetrates through the fixed cylinder (12) and is fixedly connected with the crank (14).

6. The cooling circulation mechanism for drilling the forging workpiece according to claim 3, wherein one end of the threaded rod (10) penetrates through the fixed seat (5) and is fixedly connected with the knob (8), and one side of the knob (8) is fixedly connected with the anti-skid pad.

7. The cooling circulation mechanism for drilling the forged workpiece according to claim 4, wherein a pull ring (24) is fixedly connected to one end of the plug pin (23), and a water outlet (43) is formed in one side of the water tank (7).

8. The cooling circulation mechanism for drilling of the forged workpiece according to claim 4, wherein the controller (1) is fixedly connected to one side of the supporting column (2), an auxiliary plate (45) is fixedly connected to the top of the water tank (7), and the mounting column passes through the auxiliary plate (45).

Technical Field

The invention relates to the technical field of forging processing, in particular to a cooling circulation mechanism for drilling a forged workpiece.

Background

Forging is a processing method which utilizes forging machinery to apply pressure on a metal blank to enable the metal blank to generate plastic deformation so as to obtain a forging with certain mechanical property, certain shape and certain size, the defects of casting-state looseness and the like generated in the smelting process of metal can be eliminated through forging, the microstructure is optimized, and meanwhile, because a complete metal streamline is saved, the mechanical property of the forging is generally superior to that of a casting made of the same material.

The forged workpiece needs to be drilled after being forged, the forged workpiece needs to be cooled during drilling, and when cooling water used during drilling is recycled in the market at present, a filter screen plate is usually used for filtering metal scraps, and the filter screen plate is blocked due to long-time accumulation, so that the filtering effect is reduced, and therefore, the cooling circulation mechanism for drilling the forged workpiece is very necessary.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a cooling circulation mechanism for drilling of a forged workpiece, which mainly aims to solve the problem that when cooling water used in drilling is recycled, a filter screen plate is usually used for filtering metal scraps, and long-time accumulation can block the filter screen plate, so that the filtering effect is reduced.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

a cooling circulation mechanism for drilling a forged workpiece comprises a fixed seat, a collecting box and a moving frame, wherein a water tank is fixedly connected to the upper surface of the fixed seat, a first motor is fixedly connected to the outer wall of one side of the water tank, one end of an output shaft of the first motor penetrates through the water tank and is fixedly connected with a connecting rod, a first sliding groove is formed in the moving frame, the connecting rod is in sliding connection with the first sliding groove, a positioning frame is fixedly connected to the inner wall of one side of the water tank and is in sliding connection with the moving frame, a third sliding groove is formed in the bottom of the moving frame and is movably connected with a scraping plate, wave grooves are formed in the inner walls of two sides of the water tank, the scraping plate is in sliding connection with the wave grooves, a filter screen plate is movably connected to the inner part of the water tank and is in contact with the filter screen plate, and a plurality of telescopic rods are fixedly connected to the bottom of the filter screen plate, and the telescopic link is fixed mutually with the water tank, one side swing joint of telescopic link has first spring, and the both ends of first spring are fixed mutually with telescopic link and water tank respectively, the last fixed surface of fixing base is connected with the water pump, and the one end of water pump water inlet is fixed mutually with the water tank, the last fixed surface of fixing base is connected with the support column, one side fixedly connected with condenser tube of support column, and the one end of water pump delivery port is fixed mutually with condenser tube.

Further, two roof racks of one side fixedly connected with of scraper blade, the second spout has been seted up to one side of water tank, and swing joint has the baffle in the second spout, the discharge gate has been seted up to one side of water tank, and the baffle is located the discharge gate, two slides have been seted up to one side of water tank, and swing joint has the wedge in the slide, and the wedge is fixed mutually with the baffle, and the wedge contacts with the roof rack, the top fixedly connected with second spring of wedge, and the second spring is fixed mutually with the water tank, two guide rails of one side outer wall fixedly connected with of water tank, two draw-in grooves have been seted up to one side of collecting box, and draw-in groove and guide rail sliding connection.

On the basis of the scheme, one side fixedly connected with erection column of support column, the one end fixedly connected with mount pad of erection column, and condenser tube's one end is located the top of mount pad, the inside swing joint of mount pad has a plurality of threaded rods, one side swing joint of threaded rod has the holder.

As a further scheme of the present invention, one side of the support column is fixedly connected with a fixed column, one side of the fixed column is sleeved with a connecting cylinder, one end of the connecting cylinder is movably connected with a fixed cylinder, the top end of the fixed cylinder is fixedly connected with a semi-ring plate, one side of the semi-ring plate is provided with a plurality of jacks, the fixed cylinder is internally provided with a slot, the semi-ring plate is inserted into the slot, one side of the semi-ring plate is provided with a connecting hole, one of the connecting hole and the jack is movably connected with a plug pin, one side of the plug pin is movably connected with a tension spring, and two ends of the tension spring are respectively fixed with the connecting cylinder and the plug pin.

Further, the inside fixedly connected with second motor of solid fixed cylinder, the one end fixedly connected with drill bit of second motor output shaft, one side fixedly connected with rack of second motor, one side of solid fixed cylinder has been seted up and has been kept away the position groove, and the rack with keep away a groove sliding connection, one side swing joint of solid fixed cylinder has the pivot, one side fixedly connected with gear of pivot, and gear and rack mesh mutually, solid fixed cylinder and fixedly connected with crank are passed to the one end of pivot.

On the basis of the scheme, one end of the threaded rod penetrates through the fixed seat and is fixedly connected with the knob, and one side of the knob is fixedly connected with the anti-slip pad.

As a further scheme of the invention, one end of the bolt is fixedly connected with a pull ring, and one side of the water tank is provided with a water outlet.

Furthermore, one side of the support column is fixedly connected with a controller, the top of the water tank is fixedly connected with an auxiliary plate, and the mounting column penetrates through the auxiliary plate.

(III) advantageous effects

Compared with the prior art, the invention provides a cooling circulation mechanism for drilling a forged workpiece, which has the following beneficial effects:

1. through the setting of scraper blade, first motor rotates and makes the connecting rod drive and remove the frame along the locating rack horizontal slip, and the connecting rod slides in first spout, thereby make and remove the frame and drive the scraper blade and remove along the wave groove and control, and make the scraper blade reciprocate along the wave groove, the scraper blade reciprocates and extrudes the telescopic link simultaneously, first spring is flexible, thereby make the filter plate reciprocate and keep in contact with the scraper blade, and then make the metal sweeps that filter plate body on will filter plate body of filter plate scraper blade when vibrations strike off, and then make the scraper blade carry out abundant clearance to the metal sweeps on the filter plate body of filter plate, it leads to the filter effect to avoid filtering the filter plate body to block up and reduce, the filter effect of filtering the filter plate body has been improved.

2. Through the cooperation use of roof-rack and wedge, the scraper blade removes and makes the roof-rack promote the wedge along slide rebound to make the baffle along second spout rebound, and then make the metal sweeps that the scraper blade cleared up out pass through discharge gate automatic discharge, and then make the device can automatic unloading, improved the convenience of device.

3. Through the setting of installation crank in the pivot, rotate the crank, make the pivot drive gear revolve to make the rack drive the second motor and reciprocate, and then make the drill bit reciprocate and suitable position is processed the work piece, has improved the flexibility of device.

4. Through the setting of installation semicircular plate on the solid fixed cylinder, promote the solid fixed cylinder, make the semicircular plate remove suitable position along the slot, then insert the jack of suitable position from the connecting hole to the bolt to the position of semicircular plate is fixed, and then makes the solid fixed cylinder drive the drill bit on the second motor and adjusts suitable inclination, makes things convenient for the drill bit to process special-shaped work piece, has improved the processing effect of device.

5. Through the setting of installation holder on the threaded rod, place the work piece in the centre of mount pad, rotate the threaded rod, make the holder remove suitable position to the centre and carry out the centre gripping to the work piece, make things convenient for that follow-up drill bit can be stable process the work piece, improved the result of use of device.

Drawings

FIG. 1 is a schematic front view of a cooling circulation mechanism for drilling a forged workpiece according to the present invention;

FIG. 2 is a schematic side view of a cooling circulation mechanism for drilling a forged workpiece according to the present invention;

FIG. 3 is a partially enlarged structural view of a cooling circulation mechanism for drilling a forged workpiece according to the present invention;

FIG. 4 is a schematic cross-sectional view of a water tank of a cooling circulation mechanism for drilling a forged workpiece according to the present invention;

fig. 5 is a partial sectional structural schematic view of a cooling circulation mechanism for drilling a forged workpiece according to the present invention.

In the figure: 1. a controller; 2. a support pillar; 3. a cooling water pipe; 4. a water pump; 5. a fixed seat; 6. a first motor; 7. a water tank; 8. a knob; 9. a mounting seat; 10. a threaded rod; 11. a holder; 12. a fixed cylinder; 13. a connecting cylinder; 14. a crank; 15. a rack; 16. a filter screen plate; 17. a gear; 18. fixing a column; 19. a jack; 20. a semi-annular plate; 21. a second motor; 22. a drill bit; 23. a bolt; 24. a pull ring; 25. a tension spring; 26. a movable frame; 27. a first chute; 28. a connecting rod; 29. a guide rail; 30. a card slot; 31. a collection box; 32. a wave groove; 33. a squeegee; 34. a positioning frame; 35. a first spring; 36. a telescopic rod; 37. a baffle plate; 38. a second chute; 39. a top frame; 40. a wedge block; 41. a second spring; 42. a third chute; 43. a water outlet; 44. a discharge port; 45. an auxiliary plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, a cooling circulation mechanism for drilling a forged workpiece includes a fixed base 5, a collection box 31 and a moving frame 26, a water tank 7 is fixed on the upper surface of the fixed base 5 by bolts, a first motor 6 is fixed on the outer wall of one side of the water tank 7 by bolts, one end of the output shaft of the first motor 6 passes through the water tank 7 and is fixed with a connecting rod 28 by bolts, a first chute 27 is formed in the moving frame 26, the connecting rod 28 is slidably connected with the first chute 27, a positioning frame 34 is fixed on the inner wall of one side of the water tank 7 by bolts, the positioning frame 34 is slidably connected with the moving frame 26, a third chute 42 is formed in the bottom of the moving frame 26, a scraper 33 is slidably connected with the third chute 42, wave grooves 32 are formed in the inner walls of both sides of the water tank 7, the scraper 33 is slidably connected with the wave grooves 32, a filter screen 16 is slidably connected in the water tank 7, the scraper 33 is in contact with the filter screen plate 16, a plurality of telescopic rods 36 are fixed at the bottom of the filter screen plate 16 through bolts, the telescopic rods 36 are fixed with the water tank 7, one side of each telescopic rod 36 is sleeved with a first spring 35, two ends of each first spring 35 are respectively fixed with the telescopic rods 36 and the water tank 7, the first motor 6 rotates to enable the connecting rod 28 to drive the moving frame 26 to slide left and right along the positioning frame 34, the connecting rod 28 slides in the first sliding groove 27, the moving frame 26 drives the scraper 33 to move left and right along the wave groove 32, the scraper 33 moves up and down to extrude the telescopic rods 36, the first springs 35 stretch and retract, the filter screen plate 16 moves up and down to keep in contact with the scraper 33, the scraper 33 scrapes metal scraps on the filter screen plate 16 while the filter screen plate 16 vibrates, and the scraper 33 can fully clean the metal scraps on the filter screen plate 16, avoid filtering 16 blockings up of otter board and lead to the filter effect to reduce, the upper surface of fixing base 5 has water pump 4 through the bolt fastening, and the one end and the water tank 7 of 4 water inlets of water pump are fixed mutually, and the upper surface of fixing base 5 has support column 2 through the bolt fastening, and one side of support column 2 has condenser tube 3 through the bolt fastening, and the one end and the condenser tube 3 of 4 delivery ports of water pump are fixed mutually.

In particular, in the invention, two top frames 39 are fixed on one side of the scraper 33 through bolts, a second chute 38 is arranged on one side of the water tank 7, a baffle 37 is connected in the second chute 38 in a sliding manner, a discharge hole 44 is arranged on one side of the water tank 7, the baffle 37 is positioned in the discharge hole 44, two slide ways are arranged on one side of the water tank 7, a wedge block 40 is connected in the slide ways in a sliding manner, the wedge block 40 is fixed with the baffle 37, the wedge block 40 is in contact with the top frames 39, a second spring 41 is fixed on the top of the wedge block 40 through bolts, the second spring 41 is fixed with the water tank 7, the scraper 33 moves to enable the top frames 39 to push the wedge block 40 to move upwards along the slide ways, so that the baffle 37 moves upwards along the second chute 38, metal scraps cleaned by the scraper 33 are automatically discharged through the discharge hole 44, the device can automatically discharge materials, two guide rails 29 are fixed on one side of the water tank 7 through bolts, two draw-in grooves 30 have been seted up to one side of collecting box 31, and draw-in groove 30 and guide rail 29 sliding connection, collecting box 31 can be collected the metal sweeps, thereby make things convenient for the staff to carry out centralized processing, there is the erection column one side of support column 2 through the bolt fastening, there is mount pad 9 one end of erection column through the bolt fastening, and condenser tube 3's one end is located the top of mount pad 9, the internal rotation of mount pad 9 is connected with a plurality of threaded rods 10, one side threaded connection of threaded rod 10 has holder 11, place the work piece in the centre of mount pad 9, rotate threaded rod 10, make holder 11 remove suitable position to the centre and carry out the centre gripping to the work piece, make things convenient for follow-up device can be stable to process the work piece.

In the present invention, it should be noted that a fixed column 18 is fixed on one side of a support column 2 by a bolt, a connecting cylinder 13 is sleeved on one side of the fixed column 18, a fixed cylinder 12 is rotatably connected on one end of the connecting cylinder 13, a half ring plate 20 is fixed on the top end of the fixed cylinder 12 by a bolt, a plurality of insertion holes 19 are formed on one side of the half ring plate 20, an insertion slot is formed inside the fixed cylinder 12, the half ring plate 20 is inserted into the insertion slot, a connection hole is formed on one side of the half ring plate 20, a plug pin 23 is inserted into one of the connection hole and the insertion hole 19, a tension spring 25 is sleeved on one side of the plug pin 23, both ends of the tension spring 25 are respectively fixed with the connecting cylinder 13 and the plug pin 23, a second motor 21 is fixed inside the fixed cylinder 12 by a bolt, a drill bit 22 is fixed on one end of an output shaft of the second motor 21 by a bolt, the fixed cylinder 12 is pushed, so that the half ring plate 20 moves to a proper position along the insertion slot, then inserting a bolt 23 into a jack 19 at a proper position from a connecting hole to fix the position of the semicircular plate 20, further enabling the fixed cylinder 12 to drive the drill 22 on the second motor 21 to adjust to a proper inclination angle, so as to facilitate the drill 22 to process a special-shaped workpiece, fixing one side of the second motor 21 with a rack 15 through a bolt, forming a clearance groove on one side of the fixed cylinder 12, and enabling the rack 15 to be in sliding connection with the clearance groove, rotatably connecting one side of the fixed cylinder 12 with a rotating shaft, fixing one side of the rotating shaft with a gear 17 through a bolt, and enabling the gear 17 to be meshed with the rack 15, enabling one end of the rotating shaft to penetrate through the fixed cylinder 12 and fixing a crank 14 through a bolt, rotating the crank 14 to enable the rotating shaft to drive the gear 17 to rotate, thereby enabling the rack 15 to drive the second motor 21 to move up and down, further enabling the drill 22 to move up and down to process the workpiece at a proper position, enabling one end of a threaded rod 10 to penetrate through the fixed seat 5 and fixing a knob 8 through a bolt, the non-slip mat is bonded on one side of the knob 8, the pull ring 24 is fixed to one end of the bolt 23 through a bolt, the water outlet 43 is formed in one side of the water tank 7, the controller 1 is fixed to one side of the support column 2 through a bolt, the auxiliary plate 45 is fixed to the top of the water tank 7 through a bolt, the mounting column penetrates through the auxiliary plate 45, and waste water is prevented from splashing out of the water tank 7 by the auxiliary plate 45.

The working principle of the embodiment is as follows: when a workpiece needs to be machined, firstly, the workpiece is placed in the middle of the mounting seat 9, the threaded rod 10 is rotated to enable the clamping seat 11 to move towards the middle to a proper position to clamp the workpiece, then the water pump 4 is started, the second motor 21 rotates to enable the drill bit 22 to rotate, then the crank 14 is rotated to enable the rotating shaft to drive the gear 17 to rotate, so that the rack 15 drives the second motor 21 to move up and down, the drill bit 22 moves up and down to a proper position, the drill bit 22 is enabled to machine the workpiece on the mounting seat 9, meanwhile, the water pump 4 sucks cooling water in the water tank 7, the cooling water is discharged through the cooling water pipe 3, the metal scraps generated by machining the workpiece are cooled by the cooling water, then the cooled waste water enters the water tank 7 again, the filter screen plate 16 filters the metal scraps in the waste water, and the process is repeated, therefore, the workpiece is fully cooled, when the filter screen plate 16 needs to be cleaned, the first motor 6 is started, the first motor 6 rotates to enable the connecting rod 28 to drive the moving frame 26 to slide left and right along the positioning frame 34, the connecting rod 28 slides in the first sliding groove 27, so that the moving frame 26 drives the scraper 33 to move left and right along the wave groove 32, the scraper 33 moves up and down and extrudes the telescopic rod 36, the first spring 35 stretches and retracts, so that the filter screen plate 16 moves up and down and keeps contact with the scraper 33, the scraper 33 scrapes metal scraps on the filter screen plate 16 while the filter screen plate 16 vibrates, the scraper 33 fully cleans the metal scraps on the filter screen plate 16, and then the scraped metal scraps are discharged into the collecting box 31 through the discharge port 44, so that the filter screen plate 16 is cleaned, when a special-shaped workpiece needs to be machined, the pull ring 24 is pulled backwards, the tension spring 25 extends to enable the plug pin 23 to move out of the jack 19, then the fixing cylinder 12 is pushed to enable the half ring plate 20 to move to a proper position along the slot, then the plug pin 23 is inserted into the jack 19 at the proper position from the connecting hole, and the tension spring 25 rebounds and contracts, so that the position of the half ring plate 20 is fixed, the fixing cylinder 12 drives the drill bit 22 on the second motor 21 to be adjusted to a proper inclination angle, and the special-shaped workpiece is machined by the drill bit 22 conveniently.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

In the description herein, it is to be noted that, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be mechanical or electrical, and may be direct or indirect via an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.