A machine shaft threading and punching machine that is convenient for adjustment

Abstract

The present invention relates to the field of spindle drilling, and specifically to a spindle threading and drilling machine that is convenient to adjust, including: a column, the column is fixedly installed on the ground; a workbench, a workbench is fixedly installed on the ground in front of the column, and the workbench is located below the drilling device; a sliding table, the sliding table is installed on the upper surface of the workbench; a mounting plate is vertically and fixedly installed on the slider of the sliding table, and a rotating fixing device for facilitating workers to adjust the drilling position of the motor shaft is installed on the mounting plate. By setting the rotating fixing device, the clamped motor shaft can be rotated to adjust the drilling angle, and in cooperation with the locking mechanism, the clamping of the motor shaft is made faster and more convenient. The adjustment of the drilling angle of the motor shaft can be achieved through one clamping, and each shaft no longer needs to be disassembled and clamped twice when drilling the threading hole, solving the problem that the existing spindle threading and drilling machine is inconvenient to adjust.

Description

Technical Field

[0001] The present invention relates to the field of shaft drilling, and particularly to a shaft threading and drilling machine that is convenient for adjustment. Background Technique

[0002] With the progress of society and the continuous improvement of the automation and intelligence levels of production and life, motors, as power output devices, are widely used in various fields. In order to facilitate wire winding, it is often necessary to open threading holes on the motor shaft. The angles of the threading holes opened on each batch of motor shafts produced by each motor manufacturer are different. Moreover, because the threading holes require a certain bend angle, they cannot be drilled through in one go like straight holes. Currently, for drilling holes in the shaft, a relatively inexpensive ordinary vertical drill or a more expensive CNC horizontal drill is generally used. However, whether it is an ordinary drill or a CNC horizontal drill, each time a threading hole is drilled, the motor shaft needs to be clamped twice and the clamping angle needs to be adjusted to complete the drilling of the holes in two directions and connect them into a threading hole. And each time of clamping requires a little adjustment of the angle, which is very time-consuming and laborious.

[0003] Therefore, a shaft threading and drilling machine that is convenient for adjustment is proposed to solve the problem of inconvenient adjustment when drilling threading holes in the shaft as mentioned in the above background technique. Summary of the Invention

[0004] The purpose of the present invention is to provide a shaft threading and drilling machine that is convenient for adjustment. By setting a rotating fixing device and cooperating with a locking mechanism, the clamping of the motor shaft is made faster and more convenient, and the adjustment of the drilling angle of the motor shaft can be achieved through one clamping. Each shaft no longer needs to be disassembled and clamped twice when drilling threading holes, solving the problem of inconvenient adjustment of the existing shaft threading and drilling machine.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A shaft threading and drilling machine that is convenient for adjustment, comprising:

[0007] A column, the column is circular and is vertically and fixedly installed on the ground;

[0008] A cross beam, the cross beam is horizontally slidably installed on the column;

[0009] A drilling device, the drilling device is slidably installed on the cross beam, and the drilling device can slide horizontally along the cross beam;

[0010] A drill bit, the drill bit is vertically installed on the drilling device;

[0011] A driving device one, a driving device one for driving the cross beam to move up and down is installed at the top of the column;

[0012] The second driving device, a second driving device for driving the drill bit to rotate is installed on the drilling device;

[0013] The workbench, a workbench is fixedly installed on the ground in front of the column, and the workbench is located below the drilling device;

[0014] The sliding table, a sliding table is installed on the upper surface of the workbench, and the sliding table can be a manual sliding table or an electric sliding table;

[0015] A mounting plate is vertically and fixedly installed on the sliding table, and a rotating fixing device for facilitating workers to adjust the drilling position of the motor shaft is installed on the mounting plate. By setting the rotating fixing device, after the motor shaft is fixed on this device, its angle can be adjusted after drilling on one side is completed. After reaching the specified angle, continue to drill another hole for the motor shaft, so that the drilling of the wire threading hole of the motor shaft can be completed with one clamping, greatly reducing the time required for clamping and disassembling the motor shaft and improving the production efficiency.

[0016] Preferably, the rotating fixing device includes a worm gear vertically and rotatably installed on the mounting plate. The worm gear is parallel to the mounting plate. Two mounting seats are also fixedly installed on the mounting plate. The mounting seats are located below the worm gear. A worm meshing with the worm gear is rotatably installed on the mounting seat. The helix angle of the worm is smaller than the equivalent friction angle between the meshing teeth of the worm and the worm gear. One end of the worm is fixedly installed with a handwheel. A turntable is fixedly installed on the surface of the worm gear with bolts. A clamp one is fixedly installed at the center of the turntable with bolts. A clamp two is connected to the clamp one with bolts. Semi-circular clamping grooves for placing the motor shaft are opened on both the clamp one and the clamp two. There is still a gap of 2 - 3 mm between the clamp one and the clamp two after the bolts connecting them are tightened. Locking mechanisms are installed on the left and right sides of both the clamp one and the clamp two. By placing the motor shaft workpiece between the clamping grooves of the clamp one and the clamp two, locking the clamp one and the clamp two through the locking mechanism, then the handwheel can be rotated to drive the worm to rotate, and the worm drives the worm gear to rotate, which can drive the motor shaft workpiece fixedly installed between the clamp one and the clamp two to rotate, so that the motor shaft deflects to the required angle and then the wire threading hole is drilled. After the holes in one direction are completed, the angle of the motor shaft and the position of the sliding table can be adjusted to drill the motor shaft in another direction, and finally the two drilled holes are connected to complete the drilling production of the wire threading hole, solving the problem that in the traditional wire threading hole, after drilling the holes in one direction, the motor shaft needs to be disassembled from the fixture and reinstalled and the angle adjusted before drilling the holes in another direction, improving the production efficiency. Separating the fixture and the turntable into two parts and connecting them with bolts facilitates the replacement of the fixture when producing motor shafts of different specifications without disassembling and replacing the turntable.

[0017] Preferably, the locking mechanism includes four cams rotatably mounted on the left and right sides of the first fixture and the second fixture. A connecting rod is hinged between the two cams on each side. The connecting rod is hinged to the two cams at the large ends of the cams. A first pull rod is mounted on the cams on the left and right sides of the second fixture. Lugs for cooperating with the cams for locking are welded to the left and right sides of the first fixture and the second fixture. All four lugs are located above the cams. On the left and right sides in front of the second fixture, a clamping block is horizontally and fixedly mounted with bolts. A groove is horizontally formed inside each of the two clamping blocks. A locking tongue is also slidably mounted in the two grooves. The front end of the locking tongue is a triangular inclined plane. A first spring is arranged between the locking tongue and the bottom of the groove. The first spring is a compression spring. The ends of the locking tongues extend out of the clamping blocks from the bottom of the grooves, and a second pull rod is threadedly mounted at the ends of the two locking tongues. Pull the first pull rod downward. The first pull rod causes the cams mounted on the second fixture to rotate upward. The cams on the second fixture drive the cams on the first fixture to rotate upward through the connecting rod. At the same time, the second fixture moves toward the first fixture and tightens. When the first pull rod is in the horizontal position, the cams on the first fixture and the cams on the second fixture respectively squeeze and lock with the lugs on the first fixture and the second fixture. The first pull rod and the connecting rod are on the same horizontal line, and the connecting rod and the first pull rod are at the dead center position. The first fixture and the second fixture are clamped. When the first pull rod passes through the triangular inclined plane of the locking tongue, the first pull rod squeezes the triangular inclined plane of the locking tongue, and the first spring is pressed by the locking tongue toward the inside of the groove. The locking tongue moves toward the inside of the groove. When the first pull rod passes by the locking tongue, the first spring is no longer pressed, and the first spring pops the locking tongue out again. After the pull rod passes by the locking tongue, the cams and the lugs are just locked, and the pull rod cannot move downward anymore. At the same time, due to the blocking of the locking tongue, the pull rod cannot move upward either. The pull rod and the connecting rod are held at the dead center position. The first fixture and the second fixture clamp the motor shaft and are not easily opened. When replacing the motor shaft, pull the second pull rod connected to the locking tongue outwards along the groove. The locking tongue and the first spring move into the groove. At this time, push the first pull rod upward to release the locking of the fixture, without the need to loosen or tighten one bolt by one like a traditional fixture to achieve the locking of the motor shaft workpiece, improving the clamping efficiency.

[0018] Further, the cam can also be an eccentric wheel which is easier to machine. The eccentric wheel has a lower processing cost than the cam, but in the case of achieving the same function and the same eccentricity, the mass and volume of the eccentric wheel are larger than those of the cam.

[0019] Preferably, a housing is fixedly mounted on the mounting plate. The housing is a steel housing with a thickness of 2.5 - 3.5 mm. The housing wraps the worm gear and the worm inside. The housing wraps the worm gear and the worm inside, preventing metal chips generated by drilling from entering the tooth gaps between the worm gear and the worm and interfering with the normal operation of the worm gear and the worm, improving the stability of the equipment.

[0020] Preferably, angle scales are engraved on the housing, and a pointer is vertically installed on the turntable. By setting pointer scales on the housing, such as unit scales of 1°, 5°, 10°, etc. can be set according to requirements, and a pointer is set on the turntable. The extension line of the pointer passes through the center of the turntable and is arranged along the axis direction of the clamped motor shaft. In this way, the direction indicated by the pointer is the direction of the axis of the motor shaft, and the deflection angle of the motor shaft can be accurately found according to the pointer, making it more rapid and convenient to adjust the drilling angle of the motor shaft and improving production efficiency.

[0021] Preferably, two circular guide rails are arranged on the periphery of the housing. The two guide rails are bent into a ring shape and are arranged in parallel. A first limit block and a second limit block are jointly installed on the two guide rails. Threaded holes are opened on both the first limit block and the second limit block, and both threaded holes are perpendicular to the plate surface of the rotating plate. Locking bolts are arranged in both threaded holes. The first limit block and the second limit block slide on the two guide rails. After the motor shaft is adjusted to a specified angle, by adjusting the positions of the first limit block and the second limit block, the first limit block and the second limit block are made to abut against the motor shaft, and then the locking bolts are tightened. The locking bolts abut against the surface of the housing. As the locking bolts are continuously tightened, the first limit block and the second limit block are fixed, facilitating quick positioning when replacing the motor shaft next time without observing the scale every time. At the same time, the first limit block and the second limit block can give a certain supporting force to the motor shaft during the drilling of the motor shaft, improving the efficiency of the equipment while enhancing the stability of the equipment.

[0022] Preferably, an auxiliary block is hinged to the contact positions of the first limit block and the second limit block with the motor shaft workpiece through a pin shaft. Circular limit grooves are opened in the middle of the two auxiliary blocks, and the diameter of the limit groove is the same as the diameter of the contacted motor shaft. After the first limit block and the second limit block deflect, the contact with the motor shaft will become the contact between the motor shaft and the edge of the limit block. When the drill bit drills downward, a downward pressure will be given to the motor shaft. Since the contact between the motor shaft and the limit block is a point contact, the pressure at this contact point will become extremely large, and the limit block or the shaft will be damaged during the drilling process. Adding two auxiliary blocks hinged to the first limit block and the second limit block, when the motor shaft contacts the edge of the auxiliary block, the auxiliary block will tilt towards the motor shaft due to the force, and the circular limit groove will wrap the motor shaft. At this time, the point contact between the motor shaft and the limit block becomes a surface contact with the auxiliary block, greatly reducing the pressure between the motor shaft and the limit block and avoiding damage to the workpiece or the limit block.

[0023] Preferably, adjusting screw holes are further formed in the first limiting block and the second limiting block. An adjusting screw rod is in threaded connection with the adjusting screw holes. A sliding groove is formed in the bottom of the auxiliary block. A slider is slidably mounted in the sliding groove. The slider is spherically hinged to the adjusting screw rod. By rotating the screwing depth between the adjusting screw rod and the limiting block, the included angle between the auxiliary block and the limiting block can be adjusted, so that the limiting groove inside the auxiliary block is completely attached to the motor shaft, and at the same time, a supporting force is given to the motor shaft, so that the motor shaft can be more stable when drilling through the wire hole, and the stability of the equipment is further improved.

[0024] Preferably, a ratchet wheel is fixedly mounted on the rotating shaft of the worm, and a pawl matched with the ratchet wheel is rotatably mounted on the outer side of the housing. When the motor shaft drills a hole with a deflection angle greater than 30° from the axis of the motor shaft, the deviation distance between the axis of the motor shaft and the axis of the worm gear is relatively large, and the torque given by the drill bit to the worm gear is also relatively large. Even when the worm and worm gear are in a self-locking state, the force given by the drill bit to the motor shaft easily causes a certain deflection of the worm or the worm gear. The cooperation between the ratchet wheel and the pawl can prevent the worm and the worm gear from deflecting, and at the same time, the force on the limiting block can also be reduced, improving the stability of the equipment. When adjusting the worm gear in reverse, only need to pull up the pawl and then rotate the hand wheel for adjustment.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. For the machine shaft wire-passing punching machine which is convenient to adjust described in the present invention, compared with the existing machine shaft wire-passing punching machine, by setting a rotary fixing device, the worm drives the worm gear to rotate and then fixes the rotating plate on the worm gear, and then the fixture is fixedly mounted on the rotating plate. The fixture is fixed to the rotating plate with bolts. After the motor shaft is clamped on the fixture, the worm gear can be rotated by rotating the hand wheel fixedly connected with the worm, so as to quickly adjust the clamping angle of the motor shaft, and utilize the self-locking property of the worm and worm gear to prevent the turntable from deflecting when the motor shaft punches holes, thus affecting punching. When the wire-passing hole on one side is punched, only need to adjust the clamping angle of the motor shaft and the left and right movement of the sliding table to punch holes on the other side, without the need to clamp the motor shaft and punch the wire-passing hole on one side like the traditional machine shaft wire-passing punching machine, and then remove the motor shaft, reinstall it and adjust the angle before punching the wire-passing hole on the other side, improving the convenience of the equipment and enhancing the production efficiency.

[0027] 2. The shaft threading and punching machine that is easy to adjust according to the present invention, compared with the existing shaft threading and punching machines, is provided with a locking mechanism. The locking mechanism is a cam locking mechanism. Four cams are arranged on the left and right sides of the fixture one and the fixture two. Each of the two cams on each side is hinged by a connecting rod. The places where the connecting rod is hinged to the two cams are both located at the large ends of the cams. Pull rods one are fixedly installed on the cams on the left and right sides of the fixture two. Protrusions for cooperating with the cams for locking are welded on the left and right sides of the fixture one and the fixture two. By pulling the pull rods one, the four cams are respectively pressed against the four protrusions for limiting. When the cams are pressed against the protrusions, the pull rods one and the connecting rods are in the dead center position. At this time, the fixture one and the fixture two are locked and cannot be horizontally separated, and the connecting rod one cannot move downward anymore. A locking tongue is used to prevent the pull rods one from moving upward, preventing the release of the dead center position of the pull rods one and the connecting rods, and preventing the fixture one and the fixture two from separating. When it is necessary to replace the workpiece, only need to pull the pull rod two connected to the locking tongue, and then push the pull rods one upward to release the motor shaft from between the fixtures. Compared with the locking method that requires tightening or loosening bolts every time for clamping and loosening, it realizes quick clamping and improves production efficiency.

[0028] 3. The shaft threading and punching machine that is easy to adjust according to the present invention is provided with a guide rail and a limit block one and a limit block two that slide on the guide rail. The limit block one and the limit block two can be used to realize angle positioning after the motor shaft is first clamped and the angle is adjusted. The next clamping can quickly rotate the handwheel to adjust the motor shaft to rotate to the position of the limit block, without observing the scale on the cover every time, improving the convenience of angle adjustment and further improving production efficiency. At the same time, auxiliary blocks are installed on the limit block one and the limit block two, and the limit slots on the auxiliary blocks are tightly attached to the motor shaft through adjusting screws to make the motor shaft more stable during processing, improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0030] Figure 2 is a front view of the present invention;

[0031] Figure 3 is a three-dimensional structural schematic diagram of the rotary fixing device of the present invention;

[0032] Figure 4 is a three-dimensional internal structural schematic diagram of the rotary fixing device of the present invention;

[0033] Figure 5 is a front view of the rotary fixing device of the present invention;

[0034] Figure 6 is a front view of the internal structure of the rotary fixing device of the present invention;

[0035] Figure 7 Schematic installation structure diagram of the limit block, auxiliary block and adjusting screw of the present invention;

[0036] Figure 8 Schematic installation structure diagram of the first fixture, second fixture and locking device of the present invention;

[0037] Figure 9 Schematic installation structure diagram between the first fixture and the second fixture of the present invention;

[0038] Figure 10 Schematic installation structure diagram of the clamping block, lock tongue and first spring of the present invention;

[0039] Figure 11 Schematic installation structure diagram of the rotating plate and pointer of the present invention.

[0040] In the figure: 1, column; 2, cross beam; 3, drilling device; 4, drill bit; 5, first driving device; 6, second driving device; 7, workbench; 8, sliding table; 9, mounting plate; 10, worm gear; 11, mounting seat; 12, worm; 13, hand wheel; 14, turntable; 15, first fixture; 16, second fixture; 17, cam; 18, connecting rod; 19, first pull rod; 20, convex block; 21, clamping block; 22, groove; 23, lock tongue; 24, first spring; 25, second pull rod; 26, housing; 27, scale; 28, pointer; 29, guide rail; 30, first limit block; 31, second limit block; 32, locking bolt; 33, auxiliary block; 34, limit groove; 35, adjusting screw hole; 36, adjusting screw; 37, sliding groove; 38, slider; 39, ratchet; 40, ratchet pawl. Specific embodiments

[0041] To better describe the working principle and technical key points of the present invention, the following will be described in conjunction with specific embodiments.

[0042] Embodiment 1:

[0043] Refer to Figures 1 to 10 , a machine shaft threading and drilling machine that is easy to adjust includes: 1, column; 2, cross beam; 3, drilling device; 4, drill bit; 5, first driving device; 6, second driving device; 7, workbench; 8, sliding table; 9, mounting plate; 10, worm gear; 11, mounting seat; 12, worm; 13, hand wheel; 14, turntable; 15, first fixture; 16, second fixture; 17, cam; 18, connecting rod; 19, first pull rod; 20, convex block; 21, clamping block; 22, groove; 23, lock tongue; 24, first spring; 25, second pull rod; 26, housing; 27, scale; 28, pointer; 29, guide rail; 30, first limit block; 31, second limit block; 32, locking bolt; 33, auxiliary block; 34, limit groove; 35, adjusting screw hole; 36, adjusting screw; 37, sliding groove; 38, slider; 39, ratchet; 40, ratchet pawl.

[0044] The vertical column 1 is vertically and fixedly installed on the ground. A cross beam 2 is slidably installed on the vertical column 1. A driving device 5 for driving the cross beam 2 to move up and down is installed at the top of the vertical column 1. A drilling device 3 is slidably installed on the cross beam 2. A drill bit 4 is installed below the drilling device 3. A driving device 6 for driving the drilling device 3 is installed above the drilling device 3. A workbench 7 is installed on the ground, and the workbench 7 is located directly below the cross beam 2. A sliding table 8 is horizontally installed on the workbench 7. The sliding table 8 is a manual sliding table 8, and the installation direction of the sliding table 8 is perpendicular to the space of the cross beam 2. A mounting plate 9 is vertically installed on the sliding table 8. A worm gear 10 is rotatably installed on the mounting plate 9. A mounting seat 11 is also installed on the mounting plate 9, and the mounting seat 11 is located below the worm gear 10. A worm 12 that cooperates with the worm gear 10 is installed on the mounting seat 11. A hand wheel 13 is installed at one end of the worm 12. A housing 26 is fixedly installed on the mounting plate 9 with bolts. The housing 26 cooperates with the mounting plate 9 to cover the worm gear 10 and the worm 12. The front surface of the housing 26 is engraved with scales 27 at an angular unit of 5°. A ratchet wheel 39 is also fixedly installed on the worm 12. A pawl 40 that cooperates with the ratchet wheel 39 is installed on the side wall of the housing 26. A rotating plate is installed on the worm gear 10, and a pointer 28 is installed on the rotating plate. The center of the rotating plate is fixedly installed with a fixture 15 with bolts. A fixture 16 is connected to the fixture 15 with bolts. Cam 17 and a convex block 20 that cooperates with the cam 17 are rotatably installed on the left and right sides of the fixture 15 and the fixture 16. A connecting rod 18 is used to connect the two cams 17 on each side of the fixture 15 and the fixture 16. A pull rod 19 is installed on each of the two cams 17 on the fixture 26. Blocks 21 are fixedly installed with bolts on the left and right sides of the front surface of the fixture 26. Grooves 22 are opened inside the two blocks 21. A first spring 24 is installed inside each groove 22. The first spring 24 is a compression spring. A locking tongue 23 is slidably installed inside each groove 22. The end of each locking tongue 23 presses against the first spring 24 and passes through the bottom of the groove 22 out of the groove 22. A pull rod 25 is fixedly installed with threads at the end of each locking tongue 23. Two circular guide rails 29 are installed around the housing 26. The guide rails 29 are annular, and the two guide rails 29 are concentric with the turntable 14. The two guide rails 29 are arranged in parallel. A first limiting block 30 and a second limiting block 31 are installed on the two guide rails 29. The first limiting block 30 and the second limiting block 31 can slide along the two guide rails 29. Locking bolts 32 are installed on the first limiting block 30 and the second limiting block 31. An auxiliary block 33 is rotatably installed on the first limiting block 30 and the second limiting block 31 with a rotating shaft as the center of rotation. Adjusting screw holes 35 are opened on the first limiting block 30 and the second limiting block 31. An adjusting screw 36 is screwed inside the adjusting screw hole 35. Sliding grooves 37 are opened on the two auxiliary blocks 33 on the first limiting block 30 and the second limiting block 31. Sliding blocks 38 are slidably installed inside the two sliding grooves 37. The sliding blocks 38 on the two auxiliary blocks 33 are respectively hinged to the adjusting screw 36 on the limiting block connected to the auxiliary block with a spherical hinge.

[0045] The specific work process is as follows:

[0046] Before work: Check whether each functional module of the equipment is normal, replace the replacement drill bit 4 with the required specification size, turn the handwheel 13 to restore the pointer 28 on the turntable 14 to the vertically upward angle, and replace the fixture one 15, fixture two 16 on the turntable 14, and the auxiliary blocks 33 on the limit block one 30 and limit block two 31 with sizes that match the motor shaft to be produced. After completion, turn on the machine.

[0047] When working: Vertically install the motor shaft into the card slot between the first fixture 15 and the second fixture 16. Then, pull the first pull rod 19 downward tightly. All four cams 17 rotate upward in the direction of the convex block 20. When the first pull rod 19 passes through the locking tongue 23, it presses the locking tongue 23 into the inside of the groove 22. Then, after passing through the locking tongue 23, it reaches the horizontal state. After the first pull rod 19 passes through the locking tongue 23, the locking tongue 23 pops out from the inside of the groove 22 again under the action of the first spring 24 to prevent the first pull rod 19 from moving upward. At this time, the two connecting rods 18 on the four cams 17 also reach the horizontal state like the first pull rod 19. The four cams 17 are respectively clamped with the four convex blocks 20. At this time, the locking between the first fixture 15 and the second fixture 16 is completed.Subsequently, turn the handwheel 13 to adjust the deflection angle of the motor shaft with respect to the pointer 28 on the turntable 14 and the scale 27 on the housing 26, deflect the motor shaft 10° to the left. Then move the first limit block 30 along the guide rail 29 from the left towards the motor shaft. After the first limit block 30 moves to an appropriate distance, rotate the screwing length between the adjusting screw 36 and the adjusting screw hole 35 to adjust the angle of the auxiliary block 33, so that the limit groove 34 on the auxiliary block 33 completely fits the motor shaft. Then tighten the locking bolt 32 on the first limit block 30 to fix the first limit block 30. Lift the pawl 40 and rotate the handwheel 13. With the scale 27 and the pointer 28 as the reference, turn the motor shaft 120° to the right at the current angle. Since the angle of the motor shaft deflecting to the left is relatively small, when installing the ratchet 39 and the pawl 40, it is set that the pawl 40 and the ratchet 39 will not restrict the rotation of the motor shaft when the handwheel 13 controls the motor shaft to rotate to the left, while when the handwheel 13 controls the motor shaft to deflect to the right, the pawl 40 needs to be lifted. After the motor shaft reaches the specified angle and stops turning the handwheel 13, move the second limit block 31 along the track from the right towards the motor shaft. Similar to the first limit block 30, move the second limit block 31 along the guide rail 29 towards the motor shaft. After reaching an appropriate position, rotate the adjusting screw 36 on the second limit block 31 to adjust the angle of the auxiliary block 33 on the second limit block 31, so that the limit groove 34 on the auxiliary block 33 completely fits the motor shaft. Then tighten the locking bolt 32 on the first limit block 30 to fix the second limit block 31. Subsequently, adjust the position of the drilling device 3 back and forth to align the drill bit 4 with the vertical plane where the axis of the motor shaft workpiece is located. Then adjust the sliding table 8 to move left and right to align the position where the motor shaft needs to be drilled with the center of the drill bit 4. Then control the drill bit 4 to drill down to complete the drilling of the wire-passing hole on the first side. Then the drill bit 4 rises. Turn the handwheel 13 to adjust the motor shaft to rotate 10° to the left to reach the originally positioned position deflected 10° to the left with the vertical direction as the reference. The motor shaft fits the limit groove 34 on the auxiliary block 33 above the limit block again. Only need to adjust the sliding table 8 to move left and right to adjust the position of the motor shaft to be drilled to be directly below the drill bit 4. Then control the drill bit 4 to move down to drill to complete the drilling on the second side. Thus, the drilling of the entire wire-passing hole is completed. After completion, raise the drill bit 4. Then pull open the two second pull rods 25 and push the two first pull rods 19 to rotate along the direction pointed by the pointer 28 to release the first fixture 15 and the second fixture 16. Then the motor shaft with the wire-passing hole drilled can be removed. Repeating the above steps can achieve continuous production of the wire-passing hole drilling of the motor shaft.

[0048] After work: Shut down and clean the metal chips generated during drilling.

[0049] Embodiment 2:

[0050] Different from the first embodiment, instead of using the locking mechanism in the first embodiment between the first fixture 15 and the second fixture 16, ordinary bolts are used for locking. After the motor shaft is placed in the clamping groove between the first fixture 15 and the second fixture 16, two threaded holes that cooperate with each other are provided on the first fixture 15 and the second fixture 16, and two bolts are tightened from the second fixture 16 towards the first fixture 15 to lock the motor shaft.

[0051] The functions and implementation processes not described in this embodiment are the same as those in the first embodiment, so no further elaboration will be made.

[0052] Both the first embodiment and the second embodiment can achieve the locking of the motor shaft and angle adjustment, and it is not necessary to perform two clamping operations when drilling the wire hole. The locking mechanism of the first embodiment has a relatively complex structure and a high production cost, but its operation is simple, and it is not necessary to repeatedly tighten and loosen the bolts when clamping and disassembling the motor shaft, and the efficiency is relatively high compared to the second embodiment. The second embodiment has a lower cost, but the time cost required for clamping and disassembling the motor shaft is high, and the production efficiency is lower than that of the first embodiment.

[0053] The above two embodiments are only illustrative examples selected from numerous embodiments of the present invention to better explain the working principle of the present invention. There can be various changes without departing from the principle of the present invention. Embodiments obtained by those skilled in the art through changes to the present invention without creative labor also fall within the protection scope of the present invention.

Claims

1. An adjustable machine shaft threading and drilling machine, comprising: A column (1), which is fixedly installed on the ground; A cross beam (2), which is slidably installed up and down on the column (1); A drilling device (3), which is slidably installed on the cross beam (2); A drill bit (4), which is installed on the drilling device (3); A first driving device (5), which is installed at the top of the column (1) and is used to drive the cross beam (2) to move up and down; A second driving device (6), which is installed on the drilling device (3) and is used to drive the drill bit (4) to rotate; A workbench (7), which is fixedly installed on the ground in front of the column (1), and the workbench (7) is located below the drilling device (3); A sliding table (8), which is installed on the upper surface of the workbench (7); It is characterized in that: A mounting plate (9) is vertically and fixedly installed on the sliding table (8), and a rotary fixing device for facilitating workers to adjust the drilling position of the motor shaft is installed on the mounting plate (9); The rotary fixing device includes a worm gear (10) vertically and rotatably installed on the mounting plate (9). Two mounting seats (11) are fixedly installed on the mounting plate (9). The mounting seats (11) are located below the worm gear (10). A worm (12) that cooperates with the worm gear (10) is rotatably installed on the mounting seats (11). One end of the worm (12) is fixedly installed with a handwheel (13). A turntable (14) is fixedly installed on the surface of the worm gear (10). A first clamp (15) is provided at the center of the turntable (14). A second clamp (16) is connected to the first clamp (15). A gap is left between the first clamp (15) and the second clamp (16). Locking mechanisms are installed on both the left and right sides of the first clamp (15) and the second clamp (16); The locking mechanism includes four cams (17) installed on both the left and right sides of the first clamp (15) and the second clamp (16). A connecting rod (18) is hinged between the two cams (17) on each side. Pull rods one (19) are installed on the cams (17) on both the left and right sides of the second clamp (16). Protrusions (20) are fixedly installed on both the left and right sides of the first clamp (15) and the second clamp (16). Blocks (21) are horizontally and fixedly installed on both the left and right sides in front of the second clamp (16). Grooves (22) are opened inside the two blocks (21). Lock tongues (23) are also slidably installed in the two grooves (22). A first spring (24) is provided between the lock tongues (23) and the bottoms of the grooves (22). The ends of the lock tongues (23) all extend out of the blocks (21), and pull rods two (25) are installed at the ends of the two lock tongues (23).

2. The adjustable machine shaft threading and punching machine according to claim 1, wherein: Two threaded holes are opened at the center of the turntable (14), and the first clamp (15) is fixedly connected to the turntable (14) by bolts.

3. The shaft threading and punching machine that is convenient to adjust according to claim 1, characterized in that: A cover shell (26) for preventing debris generated during drilling from hindering the meshing between the worm gear (10) and the worm (12) is fixedly installed on the mounting plate (9).

4. The adjustable machine shaft threading and punching machine according to claim 3, characterized in that: An angle scale (27) is engraved on the housing (26), and a pointer (28) is vertically installed on the turntable (14).

5. The shaft threading and punching machine that is convenient to adjust according to claim 4, wherein: Two circular guide rails (29) are arranged on the periphery of the housing (26). The two guide rails (29) are bent into a ring shape, the two guide rails (29) are arranged in parallel, a first limiting block (30) and a second limiting block (31) are jointly installed on the two guide rails (29), threaded holes are formed in both the first limiting block (30) and the second limiting block (31), and locking bolts (32) are arranged in the two threaded holes.

6. The adjustable machine shaft threading and punching machine according to claim 5, characterized in that: Auxiliary blocks (33) are hinged by pins at the positions where the first limiting block (30) and the second limiting block (31) are in contact with the motor shaft workpiece. Semi-circular limiting grooves (34) are formed in the middle of the two auxiliary blocks (33), and the diameter of the limiting groove (34) is the same as the diameter of the contacted motor shaft.

7. An adjustable machine shaft threading and punching machine according to claim 6, characterized in that: Adjusting screw holes (35) are further formed in the first limiting block (30) and the second limiting block (31). Adjusting screws (36) are connected in the adjusting screw holes (35) in a threaded manner. A sliding groove (37) is formed at the bottom of the auxiliary block (33), a slider (38) is slidably installed in the sliding groove (37), and the slider (38) is spherically hinged to the adjusting screw (36).

8. The shaft threading and punching machine that is easy to adjust according to claim 3, wherein: A ratchet wheel (39) is fixedly installed on the rotating shaft of the worm (12), and a pawl (40) that cooperates with the ratchet wheel (39) is rotatably installed on the outer side of the housing (26).

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