A motor end cover circumferential surface drilling positioning tool and its use method

Abstract

The present invention relates to the technical field of motor end cover positioning tooling, specifically a motor end cover circumferential surface drilling positioning tooling and a method of using the same, including a machine tool and a feed tube, wherein the machine tool is fixedly connected to a driving mechanism inside, the upper surface of the machine tool is fixedly connected to a drilling machine body, the machine tool is slidably connected to a supporting mechanism inside, the surface of the machine tool is slidably connected to a pushing mechanism, the feed tube is rotatably connected to a feed mechanism inside, and the driving mechanism includes an electric cylinder. In the present invention, when the rack slides outward, the support plate is driven to slide outward and expand, supporting the bottom end of the motor end cover, and when the drilling machine body is drilling, the electric cylinder will slide slightly upward a little more, not only fully supporting the bottom of the motor end cover when drilling, but also providing a reaction force, preventing the motor end cover from being sunken and tilted when drilling, thereby ensuring product quality.

Description

Technical Field

[0001] The invention relates to the technical field of motor end cover positioning tooling, and in particular to a motor end cover circumferential surface drilling positioning tooling and a use method thereof. Background Art

[0002] The motor end cover circumferential surface drilling positioning tool is a special tool used to determine the drilling position and ensure the drilling accuracy when drilling on the circumferential surface of the motor end cover. With the development of motor technology, motors are used more and more widely in various fields, and the requirements for motor performance are also getting higher and higher. For example, in the field of electric vehicles, motors need to have higher efficiency, less vibration and noise. This requires a significant improvement in the manufacturing accuracy of the motor end cover, especially the accuracy of the circumferential surface drilling.

[0003] The existing patent (publication number: CN110497226A) discloses a water pump end cover circumferential surface drilling positioning tool, including a clamping device, an electric mechanical arm, and a positioning device. The upper end face of the clamping device is installed with an electric mechanical arm, and the left end face of the electric mechanical arm is installed with a positioning device, and the positioning device is located above the clamping device. The above-mentioned water pump end cover circumferential surface drilling positioning tool can adapt to drilling processing of different sizes on the water pump end cover through the setting of adjustable jaws. The clamping plate plays a guiding and limiting role on the drill bit, reducing the probability of the drill bit offsetting and ensuring that it is in an upright state. However, when drilling a motor end cover, the drilling rig is subjected to greater pressure on the motor end cover, which may cause the motor end cover to be dented during drilling, thereby affecting the drilling quality of the motor end cover and affecting the overall efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a motor end cover circumferential surface drilling positioning tool and its use method, so as to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a motor end cover circumferential surface drilling positioning tool, including a machine tool and a feed tube, the interior of the machine tool is fixedly connected with a driving mechanism, the upper surface of the machine tool is fixedly connected with a drilling machine body, the interior of the machine tool is slidably connected with a supporting mechanism, the surface of the machine tool is slidably connected with a pushing mechanism, the interior of the feed tube is rotatably connected with a feed mechanism, the driving mechanism includes an electric cylinder, the electric cylinder is fixedly connected to the lower end of the interior of the machine tool, the upper end of the electric cylinder is fixedly connected with a U-shaped rod, and the interior of the machine tool is fixedly connected with a rotating rod.

[0005] Preferably, the supporting mechanism includes a sliding groove, which is opened inside the machine tool, an oblique groove is opened on the surface of the sliding groove, a spline groove is opened on the surface of the sliding groove, a hollow rod is slidably connected inside the sliding groove, a sliding rod is fixedly connected to the surface of the hollow rod, a gear ring is fixedly connected to the upper end edge of the hollow rod, a support rod is fixedly connected inside the hollow rod, a spline sleeve is fixedly connected to the lower end of the support rod, and a limiting ring is fixedly connected to the surface of the support rod.

[0006] Preferably, the surface of the support rod is rotatably connected to a plurality of gears, the interior of the limiting ring is slidably connected to a plurality of racks, a support plate is fixed to the surface of the racks, a circular hole is opened on the surface of the support rod, the lower surface of the support rod is fixedly connected to one end of the U-shaped rod, and each gear is meshed with the corresponding rack.

[0007] Preferably, the pushing mechanism includes a pushing rack, the pushing rack is fixedly connected to the surface of the rotating rod, the surface of the machine tool is fixedly connected to a limiting slide groove, the interior of the limiting slide groove is slidably connected to a sliding rod, one end of the pushing rack is provided with a slot one, one end of the sliding rod is fixedly connected to a slot two, the other end of the sliding rod is fixedly connected to a U-shaped push rod, and the interior of the U-shaped push rod is fixedly connected to a spring sheet.

[0008] Preferably, the other end of the U-shaped rod slides inside the first slot and is rotatably connected, and the other end of the pushing rack slides inside the second slot and is rotatably connected.

[0009] Preferably, the unloading mechanism comprises a fixed box, the fixed box is fixedly connected to the surface of the unloading tube, a cross rod is rotatably connected inside the fixed box, and one end of the main rotating shaft of the cross rod is fixedly connected to an intermittent wheel.

[0010] Preferably, the surface of the machine tool is fixedly connected to a support frame, the surface of the support frame is rotatably connected to an L-shaped rotating rod, the L-shaped rotating rod will engage with the intermittent wheel when rotating, one end of the output shaft of the L-shaped rotating rod is fixedly connected to a pulley, and a transmission belt is connected between the pulley and the rotating rod.

[0011] A method for using a motor end cover circumferential surface drilling positioning tool comprises the following steps:

[0012] S1. First, start the electric cylinder and put the motor end cover on the upper end of the hollow rod. The electric cylinder pushes the U-shaped rod to move upward. When the U-shaped rod moves upward, one end pushes the spline sleeve. The spline sleeve slides upward in the spline groove opened in the sliding groove. The spline sleeve drives the upper fixed support rod and the hollow rod to slide upward. When the hollow rod slides upward, it drives the slide rod to slide upward inside the inclined groove. When the slide rod passes through the inclined surface of the inclined groove, it drives the hollow rod to rotate on the surface of the support rod. When the hollow rod rotates, it drives the gear ring fixed at the upper end to rotate. When the gear ring rotates, it drives all the meshing gears to rotate. The gear rotates on the surface of the support rod. When the gear rotates, it drives the rack in the limit ring to slide outward. When the rack slides outward, it drives the support plate to slide outward and expand, supporting the bottom end of the motor end cover. When the drilling machine body is drilling, the electric cylinder will slide slightly upward a little more. When drilling, it not only fully supports the bottom of the motor end cover, but also provides reaction force.

[0013] S2. When the drilling is completed, the U-shaped rod is driven to slide downward by the electric cylinder. When the U-shaped rod moves downward, the spline sleeve is pulled, and the spline sleeve slides downward in the spline groove opened in the sliding groove. The spline sleeve drives the upper fixed support rod and the hollow rod to slide downward. When the hollow rod slides downward, it drives the slide rod to slide downward inside the inclined groove. When the slide rod passes through the inclined surface of the inclined groove, it drives the hollow rod to rotate on the surface of the support rod. When the hollow rod rotates, it drives the gear ring fixed at the upper end to rotate. When the gear ring rotates, it drives all meshing gears to rotate. The gear rotates on the surface of the support rod. When the gear rotates, it drives the rack in the limit ring to slide inward. When the rack slides outward, it drives the support plate to slide inward and gradually restores the initial state, and at the same time drives the hollow rod and the support rod to slide in the sliding groove and slide to the inside of the machine tool, and at the same time, the motor end cover is gradually placed on the surface of the machine tool;

[0014] S3. At the same time, when the electric cylinder pushes the U-shaped rod to move upward, the other end of the U-shaped rod will slide in slot one and push the push rack. When the push rack is pushed, it will rotate inside the machine tool through the rotating rod. When the push rack rotates, it will slide in slot two and pull the sliding rod to slide in the limit slide groove toward the end away from the hollow rod. When the sliding rod slides, it will drive the U-shaped push rod to slide at the same time and away from the hollow rod. When the U-shaped rod moves downward, the other end of the U-shaped rod will slide in slot one and pull the push rack to rotate. When the push rack rotates , it will slide in the second slot and push the sliding rod in the limit slide slot to slide in the direction of the hollow rod and the motor end cover. When the sliding rod slides, it will drive the U-shaped push rod to slide at the same time. When the U-shaped push rod slides, it will drive the spring sheet to slide at the same time. The spring sheet will slightly squeeze the motor end cover. At this time, the hollow rod has not been completely retracted into the machine tool. When the hollow rod slides to the inside of the machine tool, the U-shaped push rod will just push the motor end cover and push it away. At the same time, the spring sheet will pop the motor end cover outward and wait for the next motor end cover. The width of the U-shaped push rod will be slightly larger than the diameter of the hollow rod;

[0015] S4. At the same time, when the rotating rod rotates clockwise, the transmission belt drives the pulley to rotate, and when the pulley rotates, it drives the L-shaped rotating rod to rotate. The L-shaped rotating rod rotates in the support frame. At the same time, when the L-shaped rotating rod rotates, it will mesh with the intermittent wheel and drive the intermittent wheel to rotate. When the intermittent wheel rotates, it drives the cross rod to rotate. The cross rod will rotate inside the discharge tube through the fixed box, pushing the cylindrical motor end cover outward and just falling on the gradually rising hollow rod, so that it can continue to work. After the motor end cover with the hole completed is pushed away, the other motor end cover will slowly fall from the inside of the discharge tube.

[0016] In the present invention, when the rack slides outward, the support plate is driven to slide outward and expand, thereby supporting the bottom end of the motor end cover. When the drilling machine body is drilling, the electric cylinder will slide slightly upward. When drilling, not only the bottom of the motor end cover is fully supported, but also a reaction force is provided, thereby preventing the motor end cover from being concave and tilted during drilling, thereby ensuring product quality.

[0017] In the present invention, when the U-shaped push rod slides, the spring sheet will also slide at the same time, and the spring sheet will slightly squeeze the motor end cover. At this time, the hollow rod is not completely retracted into the interior of the machine tool. When the hollow rod slides to the interior of the machine tool, the U-shaped push rod will just push the motor end cover away, and at the same time the spring sheet will pop the motor end cover outward, waiting for the next motor end cover, thereby improving work efficiency.

[0018] In the present invention, the cylindrical motor end cover is pushed outward by rotating the cross rod and just falls on the gradually rising hollow rod, so that continuous work can be achieved. After the motor end cover with holes is pushed away, another motor end cover will slowly fall from the inside of the discharge pipe, forming a cycle of work, which not only ensures product quality, but also increases work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional appearance of the present invention;

[0020] Figure 2 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the machine tool of the present invention;

[0022] Figure 4 It is a schematic diagram of the side cross-sectional structure of the machine tool of the present invention;

[0023] Figure 5 It is a schematic diagram of the enlarged structure of the support mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the hollow rod and other structures of the present invention;

[0025] Figure 7 It is a schematic diagram of the support rod and other structures of the present invention;

[0026] Figure 8 It is a partial enlarged structural schematic diagram of the support mechanism of the present invention;

[0027] Fig. 9 It is a schematic diagram of the enlarged structure of the top of the knot support mechanism of the present invention;

[0028] Fig.10 It is a schematic diagram of the structure of the push mechanism of the present invention;

[0029] Fig.11 It is a partial enlarged structural schematic diagram of the pushing mechanism of the present invention;

[0030] Fig.12 It is a schematic structural diagram of the material feeding mechanism of the present invention.

[0031] In the figure: 1, machine tool; 2, feeding pipe; 3, driving mechanism; 4, drilling machine body; 5, supporting mechanism; 6, pushing mechanism; 7, feeding mechanism; 31, electric cylinder; 32, U-shaped rod; 33, rotating rod; 51, sliding groove; 52, inclined groove; 53, spline groove; 54, hollow rod; 55, sliding rod; 56, gear ring; 57, supporting rod; 58, spline sleeve; 59, limiting ring; 510, gear; 511, rack; 512, supporting plate; 513, round hole; 61, pushing frame; 62, limiting sliding groove; 63, sliding rod; 64, notch one; 65, notch two; 66, U-shaped push rod; 67, spring piece; 71, fixing box; 72, cross rod; 73, intermittent wheel; 74, supporting frame; 75, L-shaped rotating rod; 76, pulley; 77, transmission belt. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 12 The present invention provides a technical solution: a motor end cover circumferential surface drilling positioning tool, comprising a machine tool 1 and a feed tube 2, wherein a driving mechanism 3 is fixedly connected inside the machine tool 1, a drilling machine body 4 is fixedly connected to the upper surface of the machine tool 1, a supporting mechanism 5 is slidably connected inside the machine tool 1, a pushing mechanism 6 is slidably connected to the surface of the machine tool 1, a feed tube 2 is rotatably connected to a feed mechanism 7, the driving mechanism 3 comprises an electric cylinder 31, the electric cylinder 31 is fixedly connected to the lower end inside the machine tool 1, a U-shaped rod 32 is fixedly connected to the upper end of the electric cylinder 31, and a rotating rod 33 is fixedly connected inside the machine tool 1.

[0034] The support mechanism 5 includes a sliding groove 51, which is provided inside the machine tool 1. An inclined groove 52 is provided on the surface of the sliding groove 51. A spline groove 53 is provided on the surface of the sliding groove 51. A hollow rod 54 is slidably connected inside the sliding groove 51. A sliding rod 55 is fixedly connected to the surface of the hollow rod 54. A gear ring 56 is fixedly connected to the upper edge of the hollow rod 54. A support rod 57 is fixedly connected inside the hollow rod 54. A spline sleeve 58 is fixedly connected to the lower end of the support rod 57. A limit ring 59 is fixedly connected to the surface of the support rod 57. A plurality of gears 510 are rotatably connected to the surface of the support rod 57. A plurality of racks 510 are slidably connected inside the limit ring 59. 11. A support plate 512 is fixed to the surface of the rack 511, a circular hole 513 is opened on the surface of the support rod 57, and the lower surface of the support rod 57 is fixedly connected to one end of the U-shaped rod 32. Each gear 510 is meshed with the corresponding rack 511, and the support plate 512 is driven to slide outward and expand when the rack 511 slides outward, so as to support the bottom end of the motor end cover. When the drilling machine body 4 is drilling, the electric cylinder 31 will slide slightly upward a little bit, so as to fully support the bottom of the motor end cover when drilling and provide reaction force, so as to prevent the motor end cover from being sunken and tilted when drilling, thereby ensuring product quality.

[0035] The pushing mechanism 6 includes a pushing frame 61, which is fixedly connected to the surface of the rotating rod 33, and the surface of the machine tool 1 is fixedly connected to the limited sliding groove 62, and the sliding rod 63 is slidably connected inside the limited sliding groove 62. One end of the pushing frame 61 is provided with a slot 1 64, and one end of the sliding rod 63 is fixedly connected to a slot 2 65, and the other end of the sliding rod 63 is fixedly connected to a U-shaped push rod 66, and the inside of the U-shaped push rod 66 is fixedly connected to a spring piece 67, and the other end of the U-shaped rod 32 is fixedly connected to the inside of the slot 1 64. The push frame 61 is connected by sliding and rotating, and the other end of the push frame 61 is connected by sliding and rotating inside the groove 65. When the U-shaped push rod 66 slides, the spring piece 67 is driven to slide at the same time. The spring piece 67 will slightly squeeze the motor end cover. At this time, the hollow rod 54 is not completely retracted into the interior of the machine tool 1. When the hollow rod 54 slides to the interior of the machine tool 1, the U-shaped push rod 66 will just push the motor end cover and push it away. At the same time, the spring piece 67 will pop the motor end cover outward and wait for the next motor end cover, thereby improving work efficiency.

[0036] The feeding mechanism 7 includes a fixed box 71, which is fixedly connected to the surface of the feeding tube 2. A cross rod 72 is rotatably connected inside the fixed box 71. One end of the main rotating shaft of the cross rod 72 is fixedly connected to an intermittent wheel 73. A support frame 74 is fixedly connected to the surface of the machine tool 1. An L-shaped rotating rod 75 is rotatably connected to the surface of the support frame 74. The L-shaped rotating rod 75 will mesh with the intermittent wheel 73 when rotating. A pulley 76 is fixedly connected to one end of the output shaft of the L-shaped rotating rod 75. A transmission belt 77 is connected between the pulley 76 and the rotating rod 33. The cross rod 72 rotates to push the cylindrical motor end cover outward and it just falls on the gradually rising hollow rod 54. In this way, it can work continuously. After the motor end cover with the hole punched is pushed away, the other motor end cover will slowly fall from the inside of the feeding tube 2, forming a cycle of work, which not only ensures product quality, but also increases work efficiency.

[0037] The use method and advantages of the present invention: The motor end cover circumferential surface drilling positioning tool and the use method thereof, when in use, the working process is as follows:

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 As shown;

[0039] A method for using a motor end cover circumferential surface drilling positioning tool comprises the following steps:

[0040] S1. First, start the electric cylinder 31, and put the motor end cover on the upper end of the hollow rod 54. The electric cylinder 31 pushes the U-shaped rod 32 to move upward. When the U-shaped rod 32 moves upward, one end pushes the spline sleeve 58. The spline sleeve 58 slides upward in the spline groove 53 opened in the sliding groove 51. The spline sleeve 58 drives the upper end fixedly connected support rod 57 and the hollow rod 54 to slide upward. When the hollow rod 54 slides upward, it drives the slide rod 55 to slide upward inside the inclined groove 52. When the slide rod 55 passes the inclined surface of the inclined groove 52, it drives the hollow rod 54 to rotate on the surface of the support rod 57. When the hollow rod 54 rotates, it drives the upper end fixedly connected When the gear ring 56 rotates, the gear ring 56 drives all meshing gears 510 to rotate. The gear 510 rotates on the surface of the support rod 57. When the gear 510 rotates, the rack 511 in the limit ring 59 slides outward. When the rack 511 slides outward, it drives the support plate 512 to slide outward and expand, supporting the bottom end of the motor end cover. When the drilling machine body 4 is drilling, the electric cylinder 31 will slide slightly upward. When drilling, not only the bottom of the motor end cover is fully supported, but also a reaction force is provided to prevent the motor end cover from being sunken and tilted during drilling, thereby ensuring product quality.

[0041] S2. When the drilling is completed, the electric cylinder 31 drives the U-shaped rod 32 to slide downward. When the U-shaped rod 32 moves downward, it pulls the spline sleeve 58. The spline sleeve 58 slides downward in the spline groove 53 opened in the sliding groove 51. The spline sleeve 58 drives the upper fixed support rod 57 and the hollow rod 54 to slide downward. When the hollow rod 54 slides downward, it drives the slide rod 55 to slide downward inside the inclined groove 52. When the slide rod 55 passes the inclined surface of the inclined groove 52, it drives the hollow rod 54 to rotate on the surface of the support rod 57. The hollow rod 54 When rotating, it drives the gear ring 56 fixedly connected to the upper end to rotate, and when the gear ring 56 rotates, it drives all meshing gears 510 to rotate, and the gear 510 rotates on the surface of the support rod 57. When the gear 510 rotates, it drives the rack 511 in the limit ring 59 to slide inward, and when the rack 511 slides outward, it drives the support plate 512 to slide inward and gradually restore the initial state, and at the same time drives the hollow rod 54 and the support rod 57 to slide in the sliding groove 51, and slide to the inside of the machine tool 1, and at the same time, the motor end cover is gradually placed on the surface of the machine tool 1;

[0042] S3. At the same time, when the electric cylinder 31 pushes the U-shaped rod 32 to move upward, the other end of the U-shaped rod 32 will slide in the slot 1 64 and push the push rack 61. When the push rack 61 is pushed, it will rotate inside the machine tool 1 through the rotating rod 33. When the push rack 61 rotates, it will slide in the slot 2 65 and pull the sliding rod 63 to slide in the limiting slide groove 62 toward the end away from the hollow rod 54. When the sliding rod 63 slides, it will drive the U-shaped push rod 66 to slide at the same time and away from the hollow rod 54. When the U-shaped rod 32 moves downward, the other end of the U-shaped rod 32 will slide in the slot 1 64 and pull the push rack 61 to rotate, and the push rack 61 rotates. When the machine tool 1 is moved, the U-shaped push rod 66 will slide in the second slot 65 and push the sliding rod 63 in the limiting slide slot 62 to slide in the direction of the hollow rod 54 and the motor end cover. When the sliding rod 63 slides, the U-shaped push rod 66 will slide at the same time. When the U-shaped push rod 66 slides, the spring sheet 67 will slide at the same time. The spring sheet 67 will slightly squeeze the motor end cover. At this time, the hollow rod 54 is not completely retracted into the interior of the machine tool 1. When the hollow rod 54 slides to the interior of the machine tool 1, the U-shaped push rod 66 will just push the motor end cover and push it away. At the same time, the spring sheet 67 will pop the motor end cover outward and wait for the next motor end cover. The width of the U-shaped push rod 66 will be slightly larger than the diameter of the hollow rod 54.

[0043] S4. At the same time, when the rotating rod 33 rotates clockwise, the pulley 76 is driven to rotate through the transmission belt 77. When the pulley 76 rotates, it drives the L-shaped rotating rod 75 to rotate. The L-shaped rotating rod 75 rotates in the support frame 74. At the same time, when the L-shaped rotating rod 75 rotates, it will mesh with the intermittent wheel 73 and drive the intermittent wheel 73 to rotate. When the intermittent wheel 73 rotates, it drives the cross rod 72 to rotate. The cross rod 72 will rotate inside the discharge tube 2 through the fixed box 71, pushing the cylindrical motor end cover outward and just falling on the gradually rising hollow rod 54. In this way, it can continue to work. After the motor end cover with the hole completed is pushed away, the other motor end cover will slowly fall from the inside of the discharge tube 2, forming a cycle of work, which not only ensures product quality, but also increases work efficiency.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A motor end cover circumferential surface drilling positioning tool, comprising a machine tool (1) and a feed pipe (2), characterized in that: The machine tool (1) is fixedly connected to a driving mechanism (3) inside, the upper surface of the machine tool (1) is fixedly connected to a drilling machine body (4), the machine tool (1) is slidably connected to a supporting mechanism (5) inside, the surface of the machine tool (1) is slidably connected to a pushing mechanism (6), the inside of the feeding tube (2) is rotatably connected to a feeding mechanism (7), the driving mechanism (3) comprises an electric cylinder (31), the electric cylinder (31) is fixedly connected to the lower end inside the machine tool (1), the upper end of the electric cylinder (31) is fixedly connected to a U-shaped rod (32), and the inside of the machine tool (1) is fixedly connected to a rotating rod (33); The support mechanism (5) comprises a sliding groove (51), the sliding groove (51) is provided inside the machine tool (1), an inclined groove (52) is provided on the surface of the sliding groove (51), a spline groove (53) is provided on the surface of the sliding groove (51), a hollow rod (54) is slidably connected inside the sliding groove (51), a sliding rod (55) is fixedly connected to the surface of the hollow rod (54), a gear ring (56) is fixedly connected to the upper edge of the hollow rod (54), a support rod (57) is fixedly connected inside the hollow rod (54), and a lower end of the support rod (57) is fixedly connected to the lower end of the hollow rod (54). The end of the support rod (57) is fixedly connected to a spline sleeve (58), the surface of the support rod (57) is fixedly connected to a limit ring (59), the surface of the support rod (57) is rotatably connected to a plurality of gears (510), the interior of the limit ring (59) is slidably connected to a plurality of racks (511), a support plate (512) is fixed to the surface of the racks (511), a circular hole (513) is provided on the surface of the support rod (57), the lower surface of the support rod (57) is fixedly connected to one end of the U-shaped rod (32), and each gear (510) is meshed with a corresponding rack (511); The pushing mechanism (6) comprises a pushing frame (61), wherein the pushing frame (61) is fixedly connected to the surface of the rotating rod (33), the surface of the machine tool (1) is fixedly connected to a limiting slide groove (62), the interior of the limiting slide groove (62) is slidably connected to a sliding rod (63), one end of the pushing frame (61) is provided with a slot 1 (64), one end of the sliding rod (63) is fixedly connected to a slot 2 (65), the other end of the sliding rod (63) is fixedly connected to a U-shaped push rod (66), the interior of the U-shaped push rod (66) is fixedly connected to a spring sheet (67), the other end of the U-shaped rod (32) is slidably and rotatably connected inside the slot 1 (64), and the other end of the pushing frame (61) is slidably and rotatably connected inside the slot 2 (65); The unloading mechanism (7) comprises a fixed box (71), the fixed box (71) is fixedly connected to the surface of the unloading tube (2), a cross rod (72) is rotatably connected inside the fixed box (71), one end of the main rotating shaft of the cross rod (72) is fixedly connected to an intermittent wheel (73), the surface of the machine tool (1) is fixedly connected to a support frame (74), the surface of the support frame (74) is rotatably connected to an L-shaped rotating rod (75), the L-shaped rotating rod (75) meshes with the intermittent wheel (73) when rotating, one end of the output shaft of the L-shaped rotating rod (75) is fixedly connected to a pulley (76), and a transmission belt (77) is connected between the pulley (76) and the rotating rod (33).

2. A method for using a motor end cover circumferential surface drilling and positioning tool, using the motor end cover circumferential surface drilling and positioning tool as claimed in claim 1, characterized in that: The steps include: S1. First, the electric cylinder (31) is started, and the motor end cover is placed on the upper end of the hollow rod (54). The electric cylinder (31) pushes the U-shaped rod (32) to move upward. When the U-shaped rod (32) moves upward, one end pushes the spline sleeve (58). The spline sleeve (58) slides upward in the spline groove (53) provided in the sliding groove (51). The spline sleeve (58) drives the upper end fixedly connected support rod (57) and the hollow rod (54) to slide upward. When the hollow rod (54) slides upward, it drives the slide rod (55) to slide upward inside the inclined groove (52). When the slide rod (55) passes through the inclined surface of the inclined groove (52), it drives the hollow rod (54) on the surface of the support rod (57). The hollow rod (54) rotates, and when the hollow rod (54) rotates, the gear ring (56) fixedly connected to the upper end rotates. When the gear ring (56) rotates, it drives all meshing gears (510) to rotate. The gear (510) rotates on the surface of the support rod (57). When the gear (510) rotates, it drives the rack (511) in the limit ring (59) to slide outward. When the rack (511) slides outward, it drives the support plate (512) to slide outward and expand, supporting the bottom end of the motor end cover. When the drilling machine body (4) is drilling, the electric cylinder (31) will slide slightly upward, so that when drilling, the bottom of the motor end cover is not only fully supported, but also a reaction force is provided; S2. When the drilling is completed, the U-shaped rod (32) is driven to slide downward by the electric cylinder (31). When the U-shaped rod (32) moves downward, the spline sleeve (58) is pulled, and the spline sleeve (58) slides downward in the spline groove (53) provided in the sliding groove (51). The spline sleeve (58) drives the upper end fixedly connected support rod (57) and the hollow rod (54) to slide downward. When the hollow rod (54) slides downward, it drives the slide rod (55) to slide downward inside the inclined groove (52). When the slide rod (55) passes through the inclined surface of the inclined groove (52), it drives the hollow rod (54) to rotate on the surface of the support rod (57). The hollow rod (54) When the gear ring (54) rotates, it drives the gear ring (56) fixedly connected to the upper end to rotate. When the gear ring (56) rotates, it drives all meshing gears (510) to rotate. The gear (510) rotates on the surface of the support rod (57). When the gear (510) rotates, it drives the rack (511) in the limit ring (59) to slide inward. When the rack (511) slides outward, it drives the support plate (512) to slide inward and gradually restore the initial state. At the same time, it drives the hollow rod (54) and the support rod (57) to slide in the sliding groove (51) and slide into the interior of the machine tool (1), and at the same time, the motor end cover is gradually placed on the surface of the machine tool (1); S3. When the electric cylinder (31) pushes the U-shaped rod (32) to move upward, the other end of the U-shaped rod (32) slides in the slot 1 (64) and pushes the push rack (61). When the push rack (61) is pushed, it rotates inside the machine tool (1) through the rotating rod (33). When the push rack (61) rotates, it slides in the slot 2 (65) and pulls the sliding rod (63) to slide in the limiting slide groove (62) away from the end of the hollow rod (54). When the sliding rod (63) slides, it drives the U-shaped push rod (66) to slide at the same time and away from the hollow rod (54). When the U-shaped rod (32) moves downward, the other end of the U-shaped rod (32) slides in the slot 1 (64) and pulls the push rack (61) and rotates it. When the sliding rod (61) rotates, it will slide in the second slot (65) and push the sliding rod (63) in the limiting slide groove (62) to slide in the direction of the hollow rod (54) and the motor end cover. When the sliding rod (63) slides, it will drive the U-shaped push rod (66) to slide at the same time. When the U-shaped push rod (66) slides, it will drive the spring sheet (67) to slide at the same time. The spring sheet (67) will slightly squeeze the motor end cover. At this time, the hollow rod (54) is not completely retracted into the inside of the machine tool (1). When the hollow rod (54) slides into the inside of the machine tool (1), the U-shaped push rod (66) will just push the motor end cover and push it away. At the same time, the spring sheet (67) will pop the motor end cover outward and wait for the next motor end cover. The width of the U-shaped push rod (66) will be slightly larger than the diameter of the hollow rod (54); S4. At the same time, when the rotating rod (33) rotates clockwise, the belt pulley (76) is driven to rotate through the transmission belt (77). When the belt pulley (76) rotates, the L-shaped rotating rod (75) is driven to rotate. The L-shaped rotating rod (75) rotates in the support frame (74). At the same time, when the L-shaped rotating rod (75) rotates, it will mesh with the intermittent wheel (73) and drive the intermittent wheel (73) to rotate. When the intermittent wheel (73) rotates, it drives the cross rod (72) to rotate. The cross rod (72) will rotate inside the feed tube (2) through the fixed box (71) to push the cylindrical motor end cover outward and just fall on the gradually rising hollow rod (54). In this way, the work can be continued. After the motor end cover with the hole punched is pushed away, another motor end cover will slowly fall from the inside of the feed tube (2).

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