Motor rotor end face punching equipment

Abstract

The invention relates to motor rotor end face punching equipment. The equipment comprises a rack; the first supporting mechanism is arranged on the rack and used for supporting the motor rotor; the second supporting mechanism is slidably arranged on the rack and used for supporting and fixing the motor rotor; the two fixing mechanisms are respectively used for fixing the end parts of the motor rotor on the first supporting mechanism and the second supporting mechanism; the jacking mechanism is used for abutting against the end face of the motor rotor; the first mounting seat is arranged on the rack in a lifting manner; the drilling machine head is rotationally arranged on the first mounting base, and a circle where the axis of a spindle is located penetrates through the axis of the motor rotor; and the measuring mechanism is used for measuring the axis height of the motor rotor and adjusting the first mounting seat. During punching, the motor rotor is erected on the first supporting mechanism and the second supporting mechanism, the jacking mechanism pushes the motor rotor to a proper position, the measuring mechanism measures the height of the axis of the motor rotor, then the first mounting base is adjusted, then the drilling machine head and the motor rotor are rotated to a proper angle, punching is conducted, punching is convenient, and the applicability is wide.

Description

Technical Field

[0001] This application relates to the technical field of drilling equipment, and in particular to a drilling equipment for the end face of an electric motor rotor. Background Technology

[0002] Several holes are usually made on the end ring of the motor rotor to reduce the weight of the end ring, increase the heat dissipation effect of the end ring, and balance the rotor. Holes are also made on the end face of the motor rotor to install large motor rotors or connect to external loads.

[0003] The traditional method for drilling holes on the various end faces of a motor rotor is to clamp the motor rotor on a drilling machine. However, for large motor rotors, due to their enormous size, they cannot be clamped on a regular drilling machine for drilling. Using a large horizontal drilling machine to drill holes on the end faces of a large motor rotor is problematic. Firstly, the purchase cost of a large horizontal drilling machine is high. Secondly, due to the unique shape of the motor rotor itself, the horizontal drilling machine may interfere with the motor rotor when drilling holes on the end faces of a large motor rotor, making drilling difficult. Summary of the Invention

[0004] To address the difficulty of drilling holes in the end face of large motor rotors using a horizontal drilling machine, this application provides a device for drilling holes in the end face of motor rotors.

[0005] The technical solution of the motor rotor end face drilling equipment provided in this application is as follows: A device for drilling holes on the end face of an electric motor rotor, comprising: frame; A first support mechanism is provided on the frame and is used to support one end of the motor rotor; The second support mechanism is used to support the other end of the motor rotor and is slidably disposed on the frame to accommodate motor rotors of different lengths. The fixing mechanism has two parts, which are respectively located in the first support mechanism and the second support mechanism, and are used to fix the motor rotor. The first mounting base is lifted and positioned on the frame, located on one side of the first support mechanism; A drilling head is rotatably mounted on the first mounting base and is used to drill holes on the end face of the motor rotor; The top support mechanism is used to provide support force to the end face of the motor rotor to cooperate with the drilling head for drilling; The measuring mechanism is used to measure the shaft height of the motor rotor after it has been erected, and to adjust the height of the first mounting base according to the measured height.

[0006] With the above technical solution, when drilling holes in the end face of a motor rotor, the two ends of the motor rotor are first mounted on the first and second support mechanisms. The motor rotor is then pushed to the specified position by the top support mechanism. After measuring the height of the motor rotor shaft by the measuring mechanism, the first mounting base is adjusted so that the rotation axis of the drilling mechanism is at the same level as the axis of the motor rotor. Finally, the drilling head is rotated to the specified angle, and the motor rotor is rotated to the specified angle before drilling holes in the end face of the motor rotor through the drilling head. Since the main shaft of the drilling head passes through the axis of the motor rotor, and the height of the first mounting base is adjustable, holes can be drilled at any position on the end face of the motor rotor within a specified radius, in conjunction with the rotation of the motor rotor. Drilling is relatively convenient and has wide applicability.

[0007] Optionally, the first mounting base is rotatably mounted with a rotating shaft, the drilling head is slidably mounted on the rotating shaft and circumferentially fixed to the rotating shaft, and the frame is provided with a fixing component for fixing the rotating shaft.

[0008] Optionally, the first mounting base is horizontally slidably mounted with an adjusting seat, the rotating shaft is rotatably mounted on the adjusting seat, and the first mounting base is rotatably mounted with a first adjusting screw, which passes through the adjusting seat and is threadedly engaged with the adjusting seat. The rotating shaft is slidably mounted with a mounting block, the mounting block is circumferentially fixed to the rotating shaft, the drilling head is slidably mounted on the mounting block, and the drilling head is rotatably mounted with a second adjusting screw, the second adjusting screw passes through the mounting block and is threadedly engaged with the mounting block; The first mounting base is provided with a transmission mechanism, which is used to drive the first adjusting screw and the second adjusting screw. When the first adjusting screw drives the adjusting base to slide, the second adjusting screw drives the drilling head to slide in the opposite direction by the same distance.

[0009] With the above technical solution, when the radius of the end ring of the motor rotor that needs to be drilled is greater than the rotation diameter of the drilling head, the rotation diameter of the drilling head can be expanded by rotating the first adjusting screw and the second adjusting screw, so that the drilling head can again drill holes in all parts of the end face of the entire end ring.

[0010] Optionally, the transmission mechanism includes: The first drive shaft is rotatably mounted on the first mounting base, with one end connected to the first adjusting screw, and the other end having a polygonal connecting hole coaxially formed on its end face. The second drive shaft is rotatably mounted on the drilling head. One end is connected to the second adjusting screw, and the other end face is also coaxially provided with a polygonal connecting hole. The connecting rod is slidably inserted into two connecting holes at both ends.

[0011] Optionally, the measuring mechanism includes a bidirectional lead screw vertically rotatably mounted on a first mounting base and a first slider and a second slider vertically slidingly mounted on the first mounting base. The two ends of the bidirectional lead screw pass through the first slider and the second slider, respectively. The bidirectional lead screw is threadedly engaged with both the first slider and the second slider. A first mounting rod is detachably mounted on the first slider, and a second mounting rod is detachably mounted on the second slider. Pressure measuring components are provided at the ends of both the first and second mounting rods. The two pressure measuring components are symmetrically distributed on the upper and lower sides of the rotating shaft. When measuring the axial height of the motor rotor, the two pressure measuring components are located on the upper and lower sides of the mounting shaft of the motor rotor, respectively. The pressure measuring components can control the lifting and lowering of the first mounting base. When the measured values ​​of the two pressure measuring components are the same, the first mounting base stops moving.

[0012] With the above technical solution, when the model of the motor rotor that needs to be drilled is changed, the motor rotor that needs to be drilled is first mounted on the first support mechanism and the second support mechanism. Then, the motor rotor is pushed axially to the specified position by the top support mechanism. After adjusting the first mounting seat so that the axis of the rotating shaft is roughly at the same level as the axis of the motor rotor, the double-acting screw is rotated until both pressure measuring components are pressed against the mounting shaft of the motor rotor and a pressure value appears. Then, the pressure measuring components are connected to the power source of the first mounting seat. When the measured value of the pressure measuring component on the upper side is greater than the measured value of the pressure measuring component on the lower side, the first mounting seat rises until the measured values ​​of the two pressure measuring components are equal and then stops. Conversely, the first mounting seat descends until the measured values ​​of the two pressure measuring components are equal and then stops.

[0013] Optionally, the pressure measurement component includes: The mounting bracket is located at the end of the first mounting rod or the end of the second mounting rod; A pressure sensor is mounted on the mounting bracket; The measuring head is slidably mounted on the mounting bracket and is used to press against the mounting shaft of the motor rotor; A transmission spring is provided on the mounting bracket, with its two ends respectively abutting against the measuring head and the detection end of the pressure sensor.

[0014] Optionally, the supporting mechanism includes: The second mounting base is slidably disposed on the second mounting base in a direction that is close to or far from the drilling head; A fixed base is mounted on the second mounting base and moves up and down synchronously with the first mounting base; A support cylinder is provided on the fixed base to support the end face of the mounting shaft of the motor rotor. The axis of its piston rod is at the same level as the rotation axis of the drilling head. The support plate is rotatably mounted on the piston rod end of the support cylinder and abuts against the end face of the motor rotor mounting shaft.

[0015] Optionally, the first support mechanism includes: A first support base is provided on the frame; The first support wheel is rotatably mounted on the first support base, and there are two of them, which are used to support the end of the motor rotor mounting shaft; The second support mechanism includes: The second support is slidably disposed on the frame in a direction that is close to or away from the drilling head; The second support wheel is rotatably mounted on the second support base. There are two of them, which are used to support the end of the motor rotor mounting shaft.

[0016] Optionally, the fixing mechanism includes: The fixed frame is rotatably mounted on the first support base or the second support base, and can be rotated to move away from the support area of ​​the first support base or the second support base on the motor rotor; The fixing bolts are threaded onto the fixing frame and, when tightened, are used to press and fix the motor rotor against the first support wheel or the second support wheel.

[0017] Optionally, the fixing component includes: Several abutting blocks are provided, which are circumferentially arranged in the adjusting seat and slidably installed in the adjusting seat. One side of the block is arc-shaped and fits against the side wall of the rotating shaft. The connecting rope is slidably installed inside the adjusting seat, passes through all the clamping blocks in sequence, and is connected end to end; A locking bolt, threaded onto the adjusting seat, has one end pressed against the connecting rope.

[0018] In summary, this application supports the motor rotor through a first support mechanism and a second support mechanism, pushes the motor rotor to a specified position through a top support mechanism, measures the height of the motor rotor shaft through a measuring mechanism, and adjusts the first mounting base so that the rotation axis of the drilling mechanism is level with the axis of the motor rotor. Finally, the drilling head is rotated to a specified angle, and the motor rotor is rotated to a specified angle before drilling a hole in the end face of the motor rotor through the drilling head. Since the main shaft of the drilling head passes through the axis of the motor rotor, and the height of the first mounting base is adjustable, it can drill holes at any position on the end face of the motor rotor within a specified radius, which is convenient and widely applicable. At the same time, when adjusting the height of the first mounting base, automatic adjustment and alignment can be achieved through the cooperation between two pressure sensors and a bidirectional lead screw, which is convenient and the alignment accuracy between the shaft and the motor rotor is high, thereby improving the positional accuracy during drilling. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of this application.

[0020] Figure 2 This is a three-dimensional structural diagram of another aspect of this application.

[0021] Figure 3 This is a cross-sectional view of the first mounting bracket in this application.

[0022] Figure 4 This is a three-dimensional structural diagram of the first mounting base and the first support mechanism of this application, in which the mounting block and drilling head are removed.

[0023] Figure 5 This is a three-dimensional structural diagram of the first mounting base and the first support mechanism of this application, in which the transmission mechanism is in operation.

[0024] Figure 6 yes Figure 5 Enlarged schematic diagram of part A in the middle.

[0025] Figure 7 This is a cross-sectional view of the mounting bracket of this application.

[0026] Figure 8 This is a cross-sectional view of the adjustment seat of this application.

[0027] Figure 9 This is a cross-sectional view of the adjustment seat of this application.

[0028] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0029] Reference numerals: 1. Frame; 11. Drilling head; 12. First lifting screw; 13. First lifting motor; 14. First displacement screw; 15. First displacement motor; 16. Second displacement screw; 17. Second displacement motor; 2. First support mechanism; 21. First support base; 22. First support wheel; 3. Second support mechanism; 31. Second support base; 32. Second support wheel; 4. First mounting base; 41. Adjusting base; 42. Rotating shaft; 43. Mounting block; 431. Counterweight block; 432. Positioning bolt; 44. Transmission mechanism; 441. First transmission shaft; 442. Second transmission shaft; 443. Connecting rod; 444. Connecting hole; 45. First adjusting screw; 46. 5. Adjusting motor; 6. Fixing mechanism; 51. Fixing frame; 511. Positioning hole; 52. Fixing bolt; 53. Fixing pin; 7. Top support mechanism; 61. Support cylinder; 62. Support plate; 63. Second mounting seat; 631. Second lifting screw; 632. Second lifting motor; 64. Fixing seat; 7. Measuring mechanism; 71. Bidirectional screw; 72. Pressure measuring assembly; 721. Mounting frame; 722. Pressure sensor; 723. Measuring head; 724. Transmission spring; 73. Detection motor; 74. First slider; 75. Second slider; 76. First mounting rod; 77. Second mounting rod; 8. Fixing assembly; 81. Clamping block; 82. Connecting rope; 83. Locking bolt. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 —9 provides further details regarding this application.

[0031] This application discloses a drilling device for the end face of a motor rotor, referring to... Figure 1 and Figure 2 It includes a frame 1, a first support mechanism 2, a second support mechanism 3, two fixing mechanisms 5, a top support mechanism 6, a first mounting base 4, a drilling head 11 for drilling, and a measuring mechanism 7.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The first mounting base 4 is slidably mounted on the frame 1. The frame 1 is rotatably mounted with a first lifting screw 12 and a first lifting motor 13. The first lifting screw 12 is vertical and passes through the first mounting base 4. The first lifting screw 12 and the first mounting base 4 are threaded together. The first lifting screw 12 and the first lifting motor 13 are connected by a gear set. The first lifting motor 13 drives the first lifting screw 12 to rotate, thereby pushing the first mounting base 4 to slide up and down.

[0033] Reference Figure 1 and Figure 2The first mounting base 4 is rotatably mounted with a rotating shaft 42. The rotating shaft 42 is horizontal and is set along the length direction of the frame 1. A mounting block 43 is slidably mounted on the rotating shaft 42 along its length direction. The mounting block 43 is circumferentially fixed to the rotating shaft 42. The drilling head 11 is slidably mounted on the mounting block 43 along the radial direction of the rotating shaft 42.

[0034] When placing the motor rotor, the sliding mounting block 43 allows the drilling head 11 to be moved away from the frame 1, thereby making the motor rotor less susceptible to interference from the drilling head 11 during placement.

[0035] Reference Figure 1 and Figure 4 The measuring mechanism 7 includes a bidirectional lead screw 71 rotatably mounted on the first mounting base 4, a first slider 74 vertically sliding on the first mounting base 4, and a second slider 75 vertically sliding on the first mounting base 4.

[0036] Reference Figure 1 and Figure 4 The first slider 74 is located directly above the second slider 75. The upper end of the bidirectional lead screw 71 passes through the first slider 74 and is threaded into it, while the lower end of the bidirectional lead screw 71 passes through the second slider 75 and is threaded into it. The bidirectional lead screw 71 drives the first slider 74 and the second slider 75 to slide towards or away from each other. A detection motor 73 is fixedly mounted on the first mounting base 4. The detection motor 73 is connected to the bidirectional lead screw 71 and drives the bidirectional lead screw 71 to rotate.

[0037] Reference Figure 1 and Figure 4 A first mounting rod 76 is inserted into the first slider 74, with one end of the first mounting rod 76 extending to the upper side of the rotating shaft 42. A second mounting rod 77 is inserted into the second slider 75, with one end of the second mounting rod 77 extending to the lower side of the rotating shaft 42. The end of the first mounting rod 76 located on the upper side of the rotating shaft 42 and the end of the second mounting rod 77 located on the lower side of the rotating shaft 42 are symmetrical with respect to the rotating shaft 42.

[0038] Reference Figure 1 and Figure 4 Each of the first mounting rod 76 and the second mounting rod 77 is provided with a pressure measuring component 72 at the end of the rotating shaft 42, and the two pressure measuring components 72 are arranged symmetrically above and below the rotating shaft 42.

[0039] Reference Figure 1 , Figure 4 and Figure 7The pressure measurement assembly 72 includes a mounting bracket 721, a measuring head 723, a pressure sensor, and a transmission spring 724. The mounting bracket 721 is fixedly mounted to the end of a first mounting rod 76 or a second mounting rod 77. The pressure sensor is fixedly mounted to the mounting bracket 721, and the measuring head 723 is slidably mounted to the mounting bracket 721. The two measuring heads 723 slide relative to or away from each other. The transmission spring 724 is located between the measuring head 723 and the pressure sensor, with its two ends respectively abutting against the measuring head 723 and the detection end of the pressure sensor.

[0040] Reference Figure 1 and Figure 4 Both pressure sensors are electrically connected to the first lifting motor 13 via a switch. The pressure sensors can control the first lifting motor 13 to rotate forward, reverse, and stop. In the initial state, the measured values ​​of both pressure sensors are zero, and the two measuring heads 723 are symmetrically arranged on the upper and lower sides of the rotating shaft 42, respectively.

[0041] Reference Figure 1 and Figure 4 When it is necessary to measure the horizontal height of the motor rotor axis, the first lifting motor 13 is started to drive the first mounting base 4 to slide until it is visually determined that the axis of the rotating shaft 42 and the axis of the motor rotor are at the same level, and then the first lifting motor 13 is stopped.

[0042] Reference Figure 1 and Figure 4 Then, the first mounting rod 76 and the second mounting rod 77 are respectively inserted and fixed onto the first slider 74 and the second slider 75. At this time, the pressure measuring components 72 on the first mounting rod 76 and the second mounting rod 77 are located on the upper and lower sides of the motor rotor.

[0043] Reference Figure 1 and Figure 4 Then, the switch is closed to electrically connect the pressure sensor to the first lifting motor 13. When neither of the two pressure measuring sensors detects a pressure value, the detection motor 73 starts and drives the two pressure measuring components 72 to slide relative to each other until one of the measuring heads 723 presses against the mounting shaft side wall of the motor rotor. After the pressure sensor detects a pressure value, the detection motor 73 stops.

[0044] If the pressure sensor located on the upper side detects a pressure value, the first lifting motor 13 will rotate and drive the first mounting base 4 to rise until neither of the two pressure sensors detects a pressure value, at which point the first lifting motor 13 will stop.

[0045] Conversely, if the pressure sensor located on the lower side detects a pressure value, the first lifting motor 13 reverses and drives the first mounting base 4 to descend until neither of the two pressure sensors detects a pressure value, at which point the first lifting motor 13 stops.

[0046] When the first lifting motor 13 stops and neither of the two pressure sensors detects a pressure value, the detection motor 73 restarts, driving the first slider 74 and the second slider 75 to slide relative to each other again until one of the pressure sensors detects pressure and then stops again.

[0047] Repeat the above process until both pressure sensors detect pressure, and both the detection motor 73 and the first lifting motor 13 stop. At this time, the axis of the rotating shaft 42 and the axis of the motor rotor are at the same horizontal height, and the horizontal height measurement of the motor rotor and the height adjustment of the rotating shaft 42 are completed.

[0048] Reference Figure 1 , Figure 4 and Figure 5 A positioning bolt is threaded onto the mounting block 43. After tightening the positioning bolt, one end of the positioning bolt passes through the mounting block 43 and abuts against the side wall of the rotating shaft 42 to fix the mounting block 43. After the adjustment is completed, the first mounting rod 76 and the second mounting rod 77 are removed. Then, the mounting block 43 is slid to a suitable position and the positioning bolt is tightened. At this time, the drilling head 11 can be rotated to drill holes in the end face of the motor rotor.

[0049] Reference Figure 1 and Figure 4 The first mounting base 4 is horizontally slidably mounted with an adjusting base 41, and a rotating shaft 42 is rotatably mounted on the adjusting base 41. The axis of the rotating shaft 42 is perpendicular to the sliding direction of the adjusting base 41.

[0050] Reference Figure 4 , Figure 8 and Figure 9 The adjusting seat 41 is provided with a fixing component 8, which includes several abutting blocks 81 that are slidably installed in the adjusting seat 41, a connecting rope 82 that is installed in the adjusting seat 41, and a locking bolt 83 that is threaded onto the side wall of the adjusting seat 41. One side of the abutting block 81 slides through the adjusting seat 41 and abuts against the side wall of the rotating shaft 42. One end of the connecting rope 82 passes through all the abutting blocks 81 in sequence and is fixedly connected to the other end of the connecting rope 82. One end of the locking bolt 83 abuts against the connecting rope 82.

[0051] Reference Figure 8 and Figure 9 The clamping block 81 is made of a material with a high coefficient of friction. When it is necessary to lock the rotating shaft 42 to stop its rotation, tighten the locking bolt 83. The locking bolt 83 locks the connecting rope 82. The connecting rope 82 pushes the clamping block 81 to press against the rotating shaft 42 to stop the rotating shaft 42 from rotating, making locking relatively convenient.

[0052] Reference Figure 4 , Figure 5 and Figure 6A first adjusting screw 45 is rotatably mounted on the first mounting base 4. The first adjusting screw 45 passes through the adjusting seat 41 and is threadedly engaged with the adjusting seat 41. The rotation of the first adjusting screw 45 causes the adjusting seat 41 to slide. A second adjusting screw 431 is rotatably mounted on the mounting block 43. The second adjusting screw 431 passes through the drilling head 11 and is threadedly engaged with the drilling head 11. The rotation of the second adjusting screw 431 causes the drilling head 11 to slide.

[0053] Reference Figure 4 , Figure 5 and Figure 6 The first adjusting screw 45 and the second adjusting screw 431 are connected by a transmission mechanism 44. The transmission mechanism 44 includes a first transmission shaft 441 rotatably mounted on the first mounting base 4 and a second transmission shaft 442 rotatably mounted on the mounting block 43. One end of the first transmission shaft 441 is connected to the first adjusting screw 45 by a bevel gear, and one end of the second transmission shaft 442 is connected to the second adjusting screw 431 by a bevel gear. The threads of the first adjusting screw 45 and the second adjusting screw 431 have opposite directions.

[0054] Reference Figure 4 , Figure 5 and Figure 6 When the mounting block 43 rotates until the drilling head 11 is horizontal, the first drive shaft 441 and the second drive shaft 442 are coaxial, and a connecting hole 444 is coaxially opened on the opposite side of the first drive shaft 441 and the second drive shaft 442. The cross-section of the connecting hole 444 is a regular hexagon. A connecting rod 443 is slidably inserted into the connecting hole 444 of the first drive shaft 441. When the mounting block 43 slides close to the first mounting seat 4, the other end of the connecting rod 443 slides into the connecting hole 444 of the second drive shaft 442.

[0055] When the radius of the end face of the motor rotor that needs to be drilled is greater than the diameter of the circle containing the spindle axis of the drilling head 11, that is, when drilling is required on the end face of the ultra-large motor rotor, first rotate the mounting block 43 to a horizontal position, then insert one end of the connecting rod 443 into the connecting hole 444 of the first transmission shaft 441, slide the mounting block 43 until the other end of the connecting rod 443 is inserted into the connecting hole 444 of the second transmission shaft 442, and complete the transmission connection between the first adjusting screw 45 and the second adjusting screw 431.

[0056] Reference Figure 4 , Figure 5 and Figure 6An adjusting motor is fixedly mounted on the first mounting base 4. The adjusting motor is connected to the first adjusting screw 45. The adjusting motor drives the first adjusting screw 45 to rotate, which in turn drives the adjusting base 41 to slide away from the first support wheel 22. At the same time, the rotation of the first adjusting screw 45 drives the first transmission shaft 441 to rotate. The first transmission shaft 441 drives the second transmission shaft 442 to rotate through the connecting rod 443. The second adjusting screw 431 rotates under the drive of the second transmission shaft 442, pushing the drilling head 11 to slide closer to the first support wheel 22, thereby expanding the radius of the circle where the main shaft of the drilling head 11 is located, so as to adapt to the drilling requirements of the ultra-large motor rotor end face.

[0057] Reference Figure 4 , Figure 5 and Figure 6 A counterweight is fixedly installed on the side of the mounting block 43 away from the drilling head 11 to balance the weight of the drilling head 11 on one side, so as to facilitate the rotation of the drilling head 11 and the adjustment of its angle.

[0058] During drilling, the top support mechanism 6 provides support to the motor rotor, ensuring that the motor rotor does not shift during drilling.

[0059] Reference Figure 1 and Figure 2 The top support mechanism 6 includes a second mounting base 63 that is slidably mounted on the frame 1, a fixed base 64 that is lifted and slidably mounted on the second mounting base 63, and a support cylinder 61 that is fixedly mounted on the fixed base 64.

[0060] Reference Figure 1 and Figure 2 The sliding direction of the second mounting base 63 is parallel to the axis of the rotating shaft 42. A vertically oriented second lifting screw 631 is rotatably mounted on the second mounting base 63. The upper end of the second lifting screw 631 passes through the fixed base 64 and is threaded into it. A second lifting motor 632 is fixedly mounted on the second mounting base 63. The second lifting motor 632 is connected to the second lifting screw 631, and both the second lifting motor 632 and the first lifting motor 13 are controlled by the same switch. The second lifting motor 632 is also electrically connected to the pressure sensor via a switch. When the first lifting motor 13 starts, the second lifting motor 632 also starts synchronously, driving the second lifting screw 631 to rotate, and the fixed base 64 and the first mounting base 4 rise and fall synchronously by the same distance.

[0061] Reference Figure 1 and Figure 2 The piston rod of the supporting cylinder 61 is parallel to the rotating shaft 42. A circular support plate 62 is coaxially mounted on one end of the piston rod of the supporting cylinder 61, and the axis of the piston rod of the supporting cylinder 61 and the axis of the rotating shaft 42 are at the same horizontal height.

[0062] Reference Figure 1 and Figure 2 The frame 1 is rotatably mounted with a first displacement screw 14, which passes through a second mounting base 63 and is threadedly engaged with the second mounting base 63. The frame 1 is fixedly mounted with a first displacement motor 15, which is connected to the first displacement screw 14. The first displacement motor 15 drives the first displacement screw 14 to rotate, thereby driving the second mounting base 63 to slide.

[0063] After the motor rotor is installed, the first displacement motor 15 drives the first displacement screw 14 to rotate and adjust the second mounting base 63 to a suitable position. Then, the support cylinder 61 is started to push the motor rotor to the specified axial position. At the same time, the support cylinder 61 and the support plate 62 provide support force for drilling the motor rotor.

[0064] Because the support plate 62 is rotatably connected to the piston rod of the support cylinder 61, and the support plate 62 is coaxial with the motor rotor, the support plate 62 rotates synchronously when the motor rotor rotates to adjust the angle, making it less likely for the end face of the motor rotor mounting shaft to be scratched.

[0065] Reference Figure 1 and Figure 2 The motor rotor is mounted on the frame 1 via the first support mechanism 2 and the second support mechanism 3.

[0066] Reference Figure 1 and Figure 2 The first support mechanism 2 includes a first support base 21 fixedly installed on the frame 1. The first support base 21 is located at the end of the frame 1 where the first mounting seat 4 is located. Two first support wheels 22 are rotatably mounted on the top of the first support base 21. The axes of the two first support wheels 22 are parallel to each other and located at the same horizontal height. One end of the mounting shaft of the motor rotor is mounted on the two first support wheels 22.

[0067] Reference Figure 1 and Figure 2 The second support mechanism 3 includes a second support base 31 slidably mounted on the frame 1, which slides along the axis of the rotating shaft 42. Two second support wheels 32 are rotatably mounted on the top of the second support base 31, and the two second support wheels 32 are coaxial with the two first support wheels 22. The other end of the motor rotor mounting shaft is mounted on the two second support wheels 32.

[0068] Reference Figure 1 and Figure 2The frame 1 is rotatably mounted with a second displacement screw 16 and a second displacement motor 17 is fixedly mounted. The second displacement screw 16 passes through the second support 31 and is threadedly engaged with the second support 31. The second displacement motor 17 is connected to the second displacement screw 16 for transmission. The second displacement motor 17 drives the second displacement screw 16 to rotate, thereby driving the second support 31 to slide.

[0069] Reference Figure 1 and Figure 2 The first support base 21 is provided with a fixing mechanism 5, which is used to fix the end of the motor rotor on the first support wheel 22.

[0070] Reference Figure 1 , Figure 2 and Figure 4 The fixing mechanism 5 includes a fixing frame 51 rotatably mounted on the top of the first support base 21. The rotation axis of the fixing frame 51 is parallel to the axis of the rotating shaft 42. The fixing frame 51 can rotate away from the support area of ​​the first support base 21.

[0071] Reference Figure 1 , Figure 2 and Figure 4 The first support frame is provided with a fixing hole 53, in which a fixing pin 55 is slidably installed. The fixing frame 51 is provided with a positioning hole 511. A fixing bolt 52 is threaded on the fixing frame 51. When the fixing frame 51 rotates to fit against the top wall of the first support frame, the positioning hole 511 and the fixing hole 53 are coaxial. At this time, the fixing bolt 52 is vertical and located between the two first support wheels 22.

[0072] Reference Figure 1 , Figure 2 and Figure 4 After sliding one end of the fixing pin 55 through the positioning hole 511 into the fixing hole 53 to fix the fixing bracket 51, rotate the fixing bolt 52 until it abuts against the side wall of the mounting shaft of the motor rotor to complete the fixing of the motor rotor.

[0073] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for drilling holes on the end face of a motor rotor, characterized in that, include: Rack (1); The first support mechanism (2) is located on the frame (1) and is used to support one end of the motor rotor; The second support mechanism (3) is used to support the other end of the motor rotor and is slidably disposed on the frame (1) to adapt to motor rotors of different lengths; The fixing mechanism (5) has two parts, which are respectively located in the first support mechanism (2) and the second support mechanism (3) for fixing the motor rotor; The first mounting base (4) is lifted and positioned on the frame (1) and located on one side of the first support mechanism (2); A drilling head (11) is rotatably mounted on the first mounting base (4) and is used to drill holes on the end face of the motor rotor. The top support mechanism (6) is used to provide support force to the end face of the motor rotor to cooperate with the drilling head (11) for drilling; The measuring mechanism (7) is used to measure the shaft height of the motor rotor after it has been erected, and to adjust the height of the first mounting base (4) according to the measured height.

2. The motor rotor end face drilling device according to claim 1, characterized in that: The first mounting base (4) is rotatably mounted with a rotating shaft (42), the drilling head (11) is slidably mounted on the rotating shaft (42) and circumferentially fixed with the rotating shaft (42), and the frame (1) is provided with a fixing component (8) for fixing the rotating shaft (42).

3. The motor rotor end face drilling equipment according to claim 2, characterized in that: The first mounting base (4) is horizontally slidably mounted with an adjusting seat (41), the rotating shaft (42) is rotatably mounted on the adjusting seat (41), the first mounting base (4) is rotatably mounted with a first adjusting screw (45), the first adjusting screw (45) passes through the adjusting seat (41) and is threadedly engaged with the adjusting seat (41); The rotating shaft (42) is slidably mounted with a mounting block (43), the mounting block (43) is circumferentially fixed to the rotating shaft (42), the drilling head (11) is slidably mounted on the mounting block (43), the drilling head (11) is rotatably mounted with a second adjusting screw (431), the second adjusting screw (431) passes through the mounting block (43) and is threadedly engaged with the mounting block (43); The first mounting base (4) is provided with a transmission mechanism (44), which is used to drive the first adjusting screw (45) and the second adjusting screw (431) to slide. When the first adjusting screw (45) drives the adjusting base (41) to slide, the second adjusting screw (431) drives the drilling head (11) to slide in the opposite direction by the same distance.

4. The motor rotor end face drilling equipment according to claim 3, characterized in that, The transmission mechanism (44) includes: The first drive shaft (441) is rotatably mounted on the first mounting base (4), with one end connected to the first adjusting screw (45) for transmission, and the other end has a polygonal connecting hole (444) coaxially opened on its end face. The second drive shaft (442) is rotatably mounted on the drilling head (11). One end is connected to the second adjusting screw (431) for transmission, and the other end is also coaxially provided with a polygonal connecting hole (444). The connecting rod (443) is slidably inserted into two connecting holes (444) at both ends.

5. The motor rotor end face drilling equipment according to claim 1, characterized in that: The measuring mechanism (7) includes a bidirectional lead screw (71) vertically rotatably mounted on the first mounting base (4) and a first slider (74) and a second slider (75) vertically sliding on the first mounting base (4). The two ends of the bidirectional lead screw (71) pass through the first slider (74) and the second slider (75) respectively. The bidirectional lead screw (71) is threadedly engaged with both the first slider (74) and the second slider (75). The first slider (74) is detachably provided with a first mounting rod (76), and the second slider (75) is detachably provided with a second mounting rod (77). The ends of the first mounting rod (76) and the second mounting rod (77) are provided with pressure measuring components (72). The two pressure measuring components (72) are symmetrically distributed on the upper and lower sides of the rotation axis of the drilling head (11). When measuring the axis height of the motor rotor, the two pressure measuring components (72) are located on the upper and lower sides of the mounting shaft of the motor rotor, respectively. The pressure measuring components (72) can control the lifting and lowering of the first mounting seat (4). When the measured values ​​of the two pressure measuring components (72) are the same, the first mounting seat (4) stops moving.

6. The motor rotor end face drilling equipment according to claim 5, characterized in that, The pressure measurement assembly (72) includes: Mounting bracket (721) is located at the end of the first mounting rod (76) or the end of the second mounting rod (77); A pressure sensor is provided on the mounting bracket (721). The measuring head (723) is slidably mounted on the mounting bracket (721) for pressing against the mounting shaft of the motor rotor; A transmission spring (724) is provided on the mounting bracket (721), with its two ends abutting against the measuring head (723) and the detection end of the pressure sensor, respectively.

7. The motor rotor end face drilling equipment according to claim 1, characterized in that, The top support mechanism (6) includes: The second mounting base (63) is slidably disposed on the second mounting base (63) in a direction close to or away from the drilling head (11); The fixed seat (64) is raised and lowered on the second mounting seat (63) and rises and falls synchronously with the first mounting seat (4); A support cylinder (61) is provided on the fixed base (64) to support the end face of the mounting shaft of the motor rotor. The axis of its piston rod is at the same level as the rotation axis of the drilling head (11). The support plate (62) is rotatably mounted on the piston rod end of the support cylinder (61) and abuts against the end face of the motor rotor mounting shaft.

8. The motor rotor end face drilling device according to claim 1, characterized in that, The first support mechanism (2) includes: The first support base (21) is provided on the frame (1); The first support wheel (22) is rotatably mounted on the first support base (21), and there are two of them, which are used to support the end of the motor rotor mounting shaft; The second support mechanism (3) includes: The second support (31) is slidably disposed on the frame (1) in a direction close to or away from the drilling head (11); The second support wheel (32) is rotatably mounted on the second support base (31), and there are two of them, which are used to support the end of the motor rotor mounting shaft.

9. A drilling device for the end face of a motor rotor according to claim 8, characterized in that: The fixing mechanism (5) includes: The fixed frame (51) is rotatably mounted on the first support base (21) or the second support base (31), and can be rotated away from the support area of ​​the first support base (21) or the second support base (31) for the motor rotor; The fixing bolt (52) is threaded onto the fixing frame (51) and, after being tightened, is used to press and fix the motor rotor against the first support wheel (22) or the second support wheel (32).

10. A drilling device for the end face of a motor rotor according to claim 2, characterized in that, The fixing component (8) includes: A plurality of abutting blocks (81) are provided, which are circumferentially disposed within the adjusting seat (41) and slidably installed on the adjusting seat (41). One side of the blocks is arc-shaped and fits against the side wall of the rotating shaft (42). The connecting rope (82) is slidably installed in the adjusting seat (41), passes through all the abutting blocks (81) in sequence, and is connected end to end; A locking bolt (83) is threaded onto the adjusting seat (41), with one end abutting against the connecting rope (82).

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