CN118905275A - Motor housing drilling machine tool and drilling tool thereof - Google Patents

Abstract

The invention discloses a motor shell drilling machine tool and a drilling tool thereof, wherein a pneumatic index plate is rotationally arranged in a machine table, the pneumatic index plate is rotationally connected with a mounting plate, a supporting plate is fixedly connected on the pneumatic index plate in an array manner, a mounting table is fixed on one side of the machine table, the mounting table is fixedly provided with a driving assembly, the driving assembly is fixedly provided with a third cylinder, the output end of the third cylinder is fixedly connected with a tool rest, the tool rest is rotationally provided with a ring block, the side face array of the ring block is fixedly provided with a mounting block, the mounting block is provided with a straight groove, and one end of the mounting block is provided with a locking screw. The drilling tool comprises a drilling tool holder, a ring groove is formed in the side face of the drilling tool holder, the drilling tool holder slides in the straight groove, the ring groove is in sliding connection with the guide convex strip, a bevel gear II is fixedly arranged on the drilling tool holder, and the bevel gear II is matched with the bevel gear I. According to the drilling machine tool, the pneumatic dividing disc is used for conveying materials to the motor shells, the pneumatic dividing disc is used for clamping and fixing the motor shells, the moving block is used for adjusting the motor shells to rotate for machining, and the drilling tool can be used for drilling and cutting chamfering.

Description

A motor housing drilling machine tool and a drilling tool thereof

Technical Field

The invention relates to the technical field of cutting tools, in particular to a motor housing drilling machine tool and a drilling tool thereof.

Background Art

The motor housing is the protective structure of the outer layer of the motor, which is used to maintain the stable operating environment of the motor. It needs to have the characteristics of high strength and high sealing. It is usually made of aluminum alloy and other materials for easy processing. However, the motor housing needs to undergo deep hole cutting operations during the actual processing.

In the prior art, for example, the application number is CN202122609851.4, which discloses a bolt hole drilling tool for an engine cylinder block, and the IPC classification number is B23B47/34. The tool includes a drill body, which is located at the top of the tool and can perform drilling operations on the engine cylinder block; a drill blade, which is composed of a front blade arranged on the top surface of the drill body and side blades distributed on the surface of the drill body; and a drill rod, which is located at the rear end surface of the drill body and is an integrated structure with the drill body, and a square first connecting seat is welded and fixed to the rear end of the drill rod.

However, the drilling tools mentioned in the prior art require replacement of tool heads or equipment when cutting holes of different diameters in the motor housing during actual processing, which complicates the production operation. At the same time, when processing holes, the chamfering inside the holes requires additional processing steps, and the processing efficiency of the actual production process is low. Therefore, it is necessary to design a motor housing drilling machine and its drilling tool.

Summary of the invention

The object of the present invention is to provide a motor housing drilling machine and a drilling tool thereof to solve the problems in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

A motor casing drilling machine comprises a machine platform, wherein a pneumatic indexing plate is rotatably arranged inside the machine platform, a mounting plate is fixedly arranged on the machine platform, the pneumatic indexing plate is rotatably connected to the mounting plate, a support plate for supporting the motor casing is fixedly arranged on the pneumatic indexing plate, and a mounting platform is fixed on one side of the machine platform.

A driving assembly is fixed on the mounting table, a cylinder three is fixed on the driving assembly, a tool holder is fixedly connected to the output end of the cylinder three, a ring block is rotatably provided on the tool holder, an array of mounting blocks are fixed on the side of the ring block, a straight groove for mounting a drilling tool is provided on the mounting block, and a locking screw for locking the tool is installed at one end of the mounting block.

Furthermore, a cylinder seat is fixed on the mounting plate, a cylinder 1 is fixed on the cylinder seat, an output end of the cylinder 1 is fixedly connected to a support plate for supporting the motor housing, an array of open grooves is provided on one side of the mounting plate, and the support plate is located in an open groove.

Furthermore, the side array of the pneumatic dividing plate is provided with a rectangular groove, and vertical plates are fixed on both sides of the rectangular groove. The vertical plates are fixed on the pneumatic dividing plate, one side of the vertical plate is provided with an arc surface, and the other side is fixed with a top plate for limiting the motor housing, and the top plate is located between the two vertical plates.

A pad for supporting the motor housing is fixed on one side of the vertical plate, and cylinder 2 is fixed on both sides of the pneumatic dividing plate and the rectangular groove. The output end of cylinder 2 is fixedly connected to a right-angle block for driving clamping, and the inclined surfaces of the two right-angle blocks are arranged opposite to each other. A sliding rod is rotatably provided on the vertical plate, one end of the sliding rod is fixedly connected to a conical block, and the other end is fixedly provided with a clamping plate.

Furthermore, the conical surface at one end of the conical block is slidably connected to the inclined surface of the right-angle block, and the other end is fixedly connected to a spring 1, which is fixed between the vertical plate and the conical block. A limiting plate is fixed on the clamping plate, and a symmetrically distributed bottom block is fixed in the rectangular groove, and the bottom block is located below the clamping plate.

A guide column is slidably arranged on the bottom block, and a second spring is arranged on the guide column. One end of the guide column is fixedly connected to the limit block, and the other end is fixedly connected to the support plate. The second spring is fixed between the support plate and the bottom block.

Furthermore, a connecting frame is fixedly connected to one side of the mounting table, and the connecting frame is fixedly connected to one side of the machine table. The driving assembly consists of an X-axis slide, a Y-axis slide, and a Z-axis slide. The X-axis slide is fixed on the mounting table, a Y-axis slide is slidably provided on the X-axis slide, a Z-axis slide is slidably provided on the Y-axis slide, and a lifting plate is slidably provided on the Z-axis slide.

One end of the lifting plate is fixedly connected to an inclined plate for installing cylinder three, a gear ring is fixed on the inner side of the ring block, a motor one is fixed on the tool holder, a gear one is fixed on the output end of the motor one, the gear one cooperates with the gear ring, a motor two is fixed on the tool holder, and a bevel gear one is fixed on the output end of the motor two.

Furthermore, a guide convex strip is fixed on the inner wall of the straight groove, a locking screw is threadedly connected to the mounting block, and a spherical block is fixed on one end of the locking screw.

Furthermore, a fixed seat is fixed on the mounting platform, the fixed seat is fixed on the connecting frame, a vertical frame is fixed on the fixed seat, symmetrically distributed arc rods are fixed to the upper end of the vertical frame, a guide rod is fixed on the inner side of the arc rod, an arc rack is fixed on the arc rod, a moving block is slidably provided on the two guide rods, and a motor three is fixed on the moving block.

Furthermore, the output end of the motor three is fixedly connected to the gear two, the gear two cooperates with the arc rack, the cylinder four is fixed on the moving block, the output end of the cylinder four is fixed to a fixed plate, both ends of the fixed plate are fixedly connected to limit rods for clamping the motor housing, symmetrically distributed top rods are fixedly connected to the fixed plate, and a suction cup for locking the motor housing is fixed to the fixed plate.

A motor housing drilling tool is used on a motor housing drilling machine tool. The drilling tool includes a drill seat for milling holes in the motor housing. A ring groove is provided on the side of the drill seat. The drill seat slides in the straight groove. The ring groove is slidably connected to a guide convex strip. A bevel gear 2 is fixed on the drill seat. The bevel gear 2 cooperates with the bevel gear 1.

Furthermore, the drill seat is provided with a mounting hole, a drill is fixed in the mounting hole, the drill is provided with a through hole, the drill is provided with a limit groove, the drill is provided with a through groove, a cutter head is slidably provided on the through groove, and the cutter head is vertically arranged with the drill.

Beneficial effects of the present invention:

1. The drilling machine tool of the present invention feeds several motor housings through a pneumatic indexing plate, and loading, processing and unloading are carried out separately without interfering with each other, and the processing efficiency can be improved. A clamping assembly is arranged on the pneumatic indexing plate to clamp and fix the motor housing, and the motor housing can be controlled to rotate and adjust by rotating the moving block, and the processing position of the motor housing is adjusted, and the holes at different positions of the motor housing are operated simultaneously, without the need for additional equipment processing;

2. The drilling machine tool of the present invention uses a drilling tool to cut the motor housing of advanced non-ferrous metal materials, and the drilling machine tool is equipped with multiple drilling tools at the same time, which can perform cutting processing with different hole diameters. It has a wide range of actual production applications, small processing errors, and simple and convenient operation;

3. The drilling tool on the drilling machine of the present invention can cut holes for the motor housing by adjusting the drilling tool, and the drilling tool is firmly installed and fixed. A vertical cutter head is arranged on the tool bar of the drilling tool, and the cutter head is used to chamfer the hole in the motor housing. The processing operation is simple and efficient, and the drilling tool has various functions.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings.

FIG1 is a schematic structural diagram of a drilling machine tool according to the present invention;

FIG2 is a schematic diagram of the structure of the machine of the present invention;

FIG3 is an enlarged structural schematic diagram of point A in FIG2 of the present invention;

FIG4 is a schematic diagram of the structure of the machine of the present invention;

FIG5 is an enlarged schematic diagram of the structure at B in FIG4 of the present invention;

FIG6 is a schematic diagram of the structure of the motor housing of the present invention;

7 is a schematic structural diagram of the mounting platform of the present invention;

FIG8 is an enlarged schematic diagram of the structure at C in FIG7 of the present invention;

FIG9 is a schematic diagram of the structure of the tool holder of the present invention;

FIG. 10 is a schematic cross-sectional view of the tool holder of the present invention.

The reference numerals are as follows:

1. Machine; 2. Pneumatic indexing plate; 3. Support plate; 4. Mounting table; 5. Fixed seat; 6. Drill seat; 7. Motor housing; 11. Mounting plate; 12. Cylinder seat; 13. Support plate; 14. Opening slot; 15. Cylinder 1; 20. Limiting plate; 21. Rectangular slot; 22. Vertical plate; 23. Arc surface; 24. Cylinder 2; 25. Right-angle block; 26. Slide rod; 27. Conical block; 28. Spring 1; 29. Clamp; 31. Guide column; 32. Spring 2; 33. Bottom plate; 40. Gear 1; 41. Connecting frame; 42. X-axis slide; 43. Y-axis slide; 44. Z-axis slide; 45. Lifting plate; 46. Inclined plate; 47. Cylinder 3; 48. Tool holder; 49. Ring block; 50, limit rod; 51, stand; 52, arc rod; 53, guide rod; 54, moving block; 55, motor three; 56, gear two; 57, cylinder four; 58, fixing plate; 59, suction cup; 61, ring groove; 62, bevel gear two; 63, mounting hole; 64, drill; 65, through hole; 66, limit groove; 67, through groove; 68, cutter head; 71, motor seat; 221, cushion block; 222, top plate; 401, motor one; 481, motor two; 482, bevel gear one; 483, mounting block; 484, straight groove; 485, guide convex strip; 486, locking screw; 487, spherical block; 491, gear ring; 521, arc rack; 581, top rod.

DETAILED DESCRIPTION

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 technicians in this field without creative work are within the scope of protection of the present invention.

A motor housing drilling machine and a drilling tool thereof, wherein the motor housing is made of one of advanced nonferrous metal materials, the drilling machine is a type of cutting processing equipment and is used for cutting the motor housing, and the drilling tool is a type of cutting tools, and the drilling machine uses the drilling tool to drill holes in the motor housing.

A motor casing drilling machine, as shown in Figures 1, 2 and 3, includes a machine platform 1, a pneumatic indexing plate 2 is rotatably installed inside the machine platform 1, a mounting plate 11 is provided on the pneumatic indexing plate 2, the mounting plate 11 passes through the pneumatic indexing plate 2 and is fixedly connected to the machine platform 1, the pneumatic indexing plate 2 is rotatably connected to the mounting plate 11, an array-distributed support plate 3 is fixedly provided on the pneumatic indexing plate 2, a mounting platform 4 is fixedly provided on one side of the machine platform 1, and a fixing seat 5 is fixedly provided on the mounting platform 4.

A cylinder seat 12 is fixedly mounted on the mounting plate 11, a cylinder 15 is fixedly mounted on the cylinder seat 12, a support plate 13 is fixedly connected to the output end of the cylinder 15, the cylinder 15 is arranged on one side of the drilling station, the support plate 13 is driven by the cylinder 15 and extends into the motor housing 7, the support plate 13 abuts against the inner wall of the motor housing 7, and is used to support the motor housing 7, an array of open grooves 14 are opened on one side of the mounting plate 11, and the support plate 13 is located in one of the open grooves 14.

As shown in Figures 2 to 5, the side of the pneumatic dividing plate 2 is provided with an array of rectangular grooves 21, and vertical plates 22 are provided on both sides of the rectangular grooves 21. The vertical plates 22 are fixedly connected to the pneumatic dividing plate 2, and a storage bin is provided between the two vertical plates 22 for fixedly feeding the motor housing 7. An arc-shaped surface 23 is provided on one side of the vertical plate 22, and a top plate 222 is fixedly provided on the other side. The top plate 222 is located between the two vertical plates 22.

A cushion block 221 is fixedly provided on one side of the vertical plate 22, and the cushion block 221 is located on one side of the arc surface 23. Cylinder 24 is fixedly installed on the pneumatic dividing plate 2 and on both sides of the rectangular groove 21. The output end of cylinder 24 is fixedly connected to a right-angle block 25. The inclined surfaces of the two right-angle blocks 25 are arranged opposite to each other. A sliding rod 26 is rotatably provided on the vertical plate 22, and one end of the sliding rod 26 is fixedly connected to a conical block 27, and the other end is fixedly provided with a clamping plate 29.

The conical surface at one end of the conical block 27 is slidably connected to the inclined surface of the right-angle block 25, and the other end is fixedly connected with a spring 28. One end of the spring 28 abuts against the vertical plate 22 to support the conical block 27. A limit plate 20 is fixedly installed on the clamping plate 29. The limit plate 20 is used to limit the ribs on the motor housing 7 to prevent the motor housing 7 from slipping. The output end of the cylinder 15 faces between the two vertical plates 22.

A symmetrically distributed bottom plate 33 is fixedly provided in the rectangular groove 21, and the bottom plate 33 is located below the clamping plate 29. A guide column 31 is slidably provided on the bottom plate 33, and a spring 2 32 is sleeved on the guide column 31. One end of the guide column 31 is fixedly connected to a limiting block, and the other end is fixedly connected to the support plate 3 for locking the support plate 3. One end of the spring 2 32 is fixedly connected to the bottom of the support plate 3, and the other end is fixedly connected to the bottom plate 33 to lift the support plate 3, so as to support the motor housing 7 on the rectangular groove 21 through the support plate 3.

As shown in Figure 6, a motor seat 71 is fixed on one side of the motor housing 7. The motor housing 7 is vertically installed between the two vertical plates 22. The right-angle block 25 is pushed vertically by the output end of the cylinder 24, and then the two clamping plates 29 are controlled to move toward each other. The motor seat 71 is vertically attached to one side of the vertical plate 22, and one end of the motor seat 71 is abutted on the pad 221 to support the motor seat 71.

The end of the motor housing 7 is fitted with the support plate 3 , and the motor housing 7 is supported by the support plate 3 , so that the mounting end of the motor housing 7 is arranged upward, and a hole is opened at the mounting end of the motor housing 7 .

As shown in Figures 7, 8 and 9, a connecting frame 41 is fixedly connected to one side of the mounting table 4, the connecting frame 41 is fixedly connected to one side of the machine table 1, and the fixing seat 5 is fixedly installed on the connecting frame 41, an X-axis slide 42 is fixedly installed on the mounting table 4, a Y-axis slide 43 is slidably provided on the X-axis slide 42, and a Z-axis slide 44 is slidably provided on the Y-axis slide 43.

In this embodiment, the X-axis slide 42, the Y-axis slide 43, and the Z-axis slide 44 are all TSA100-B produced by Zhuoli Hanguan.

A lifting plate 45 is slidably provided on the Z-axis slide 44. When driven by the Z-axis slide 44, the lifting plate 45 moves vertically to adjust the working height of the lifting plate 45 to match the processing of motor housings 7 of different sizes. One end of the lifting plate 45 is fixedly connected to an inclined plate 46, and a cylinder three 47 is fixedly installed on the inclined plate 46. The output end of the cylinder three 47 is fixedly connected to a tool holder 48. A ring block 49 is rotatably provided on the tool holder 48, and a gear ring 491 is fixedly provided on the inner side of the ring block 49.

A motor 401 is fixedly mounted on the tool holder 48, and a gear 40 is fixedly mounted on the output end of the motor 401. The gear 40 is meshed with a gear ring 491. The motor 401 controls the rotation of the drive gear 40 to drive the gear ring 491 to rotate. The tool holder 48 is tilted, and a motor 481 is fixedly mounted on the tool holder 48, and a bevel gear 482 is fixedly connected to the output end of the motor 481.

An array of mounting blocks 483 are fixedly installed on the side of the ring block 49, a straight groove 484 is opened on the mounting block 483, a guide ridge 485 is fixedly installed on the inner wall of the straight groove 484, one end of the mounting block 483 is fixedly connected to the ring block 49, and a locking screw 486 is threadedly installed on the other end, the locking screw 486 is threadedly connected to the mounting block 483, and a spherical block 487 is fixedly provided on one end of the locking screw 486.

Different drilling tools are installed on different mounting blocks 483 for cutting holes with different diameters.

As shown in Figures 3, 5 and 8, a stand 51 is fixedly installed on the fixed seat 5, and a symmetrically distributed arc rod 52 is fixedly connected to the upper end of the stand 51. A guide rod 53 is fixedly provided on the inner side of the arc rod 52, and an arc rack 521 is fixedly provided on the arc rod 52. A moving block 54 is slidably provided on the two guide rods 53, and a motor three 55 is fixedly provided on the moving block 54. A gear two 56 is fixedly connected to the output end of the motor three 55, and the gear two 56 is meshed with the arc rack 521.

A cylinder four 57 is fixedly installed on the moving block 54, and a fixed plate 58 is fixedly installed on the output end of the cylinder four 57. The two ends of the fixed plate 58 are fixedly connected to limit rods 50, and the limit rods 50 are used to fit the outer wall of the motor housing 7. The fixed plate 58 is fastened with symmetrically distributed push rods 581, and the push rods 581 are fitted to the ends of the motor housing 7 for supporting the motor housing 7. A suction cup 59 is fastened on the fixed plate 58 for adsorbing the ends of the motor housing 7.

Motor three 55 drives gear two 56 to rotate, causing the moving block 54 to slide along the guide rod 53. The moving block 54 rotates 90 degrees, causing the cylinder four 57 to rotate 90 degrees. The output end of the cylinder four 57 rotates from vertically upward to horizontally toward the open groove 14. At this time, the mounting end of the motor housing 7 faces the open groove 14, and the motor seat 71 is horizontally attached to the vertical plate 22, which is convenient for processing the motor seat 71. The top plate 222 limits one end of the motor housing 7.

As shown in Figure 10, a motor housing drilling tool is provided, which includes a drill seat 6. A ring groove 61 is provided on the side of the drill seat 6. The drill seat 6 slides in the straight groove 484. The ring groove 61 is slidably connected to the guide convex strip 485. A bevel gear 2 62 is fixed on the drill seat 6. The bevel gear 2 62 is meshed with the bevel gear 1 482. A mounting hole 63 is provided on the drill seat 6. A drill 64 is fixedly installed in the mounting hole 63. The drill 64 is provided with a through hole 65.

A limit groove 66 is provided on the drill bit 64, a through groove 67 is provided on the drill bit 64, a cutter head 68 is slidably provided on the through groove 67, and the cutter head 68 is vertically arranged with the drill bit 64. The drill bit 64 is used to perform drilling processing on the motor housing. After the drilling processing, the end of the hole is cut by the cutter head 68, and the hole mouth is chamfered.

Here’s how it works:

During actual processing, the motor housing 7 is vertically installed between the two vertical plates 22 on the rectangular groove 21, and the cylinders 24 on both sides of the rectangular groove 21 are started to control the two slide bars 26 to move toward each other. The motor housing 7 is clamped and fixed by two clamping plates 29, and then the motor housing 7 is vertically fixed between the two vertical plates 22. The motor seat 71 on one side of the motor housing 7 is attached to one side of the vertical plate 22 and fixed on the pad 221. The bottom end of the motor housing 7 is fixed on the support plate 3. At this time, the motor housing 7 is fixed.

The output end of the cylinder four 57 moves vertically, and supports the bottom end of the motor housing 7 through the push rod 581 to support and stabilize the motor housing 7. At this time, the position of the drill seat 6 is adjusted by the X-axis slide 42, the Y-axis slide 43 and the Z-axis slide 44. The motor 401 controls the driving gear 40 to rotate to drive the gear ring 491 to rotate, and adjusts a mounting block 483 to a horizontal state. The drilling tool installed on the corresponding mounting block 483 can process different hole diameters.

After drilling the end of the motor housing 7, the motor three 55 is started, and then the gear two 56 engages with the arc rack 521 to drive the moving block 54 to rotate 90 degrees. Then the motor housing 7 is connected by the limit rod 50 and the suction cup 59, so that the motor housing 7 drives the clamping plate 29 to rotate. The motor housing 7 rotates 90 degrees, and the motor seat 71 rotates along one side of the vertical plate 22 until the motor seat 71 is attached to the vertical plate 22, thereby improving the clamping stability of the motor housing 7.

Then, the support plate 13 is used to support the interior of the motor housing 7, which is convenient for drilling the motor seat 71, improving the processing efficiency of the motor housing 7, with high processing accuracy, automated processing, and simple drilling operation. A vertical tool head is arranged on the tool bar of the hole cutter, and the tool head is used to chamfer the inside of the motor housing hole. The processing operation is simple and efficient, and the drilling tool has various functions and is suitable for drilling holes in the motor housing.

The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims (10)

1. The motor shell drilling machine tool comprises a machine table (1), and is characterized in that a pneumatic dividing plate (2) is rotationally arranged on the machine table (1), a mounting plate (11) is fixedly arranged on the machine table (1), the pneumatic dividing plate (2) is rotationally connected with the mounting plate (11), a supporting plate (3) for supporting a motor shell is fixedly connected to an array on the pneumatic dividing plate (2), and a mounting table (4) is fixedly arranged on one side of the machine table (1);

The drilling tool is characterized in that a driving assembly is fixedly arranged on the mounting table (4), an air cylinder III (47) is fixedly arranged on the driving assembly, a tool rest (48) is fixedly connected to the output end of the air cylinder III (47), a ring block (49) is rotatably arranged on the tool rest (48), mounting blocks (483) distributed in an array are fixedly arranged on the side faces of the ring block (49), straight grooves (484) for mounting the drilling tool are formed in the mounting blocks (483), and a locking screw (486) for locking the tool is mounted at one end of the mounting blocks (483).

2. A motor housing drilling machine according to claim 1, characterized in that the mounting plate (11) is fixed with a cylinder block (12), the cylinder block (12) is fixed with a first cylinder (15), the output end of the first cylinder (15) is fixedly connected with a supporting plate (13) for supporting the motor housing, an open slot (14) is arranged on one side array of the mounting plate (11), and the supporting plate (13) is positioned in one open slot (14).

3. The motor housing drilling machine tool according to claim 1, wherein a rectangular groove (21) is arranged on the side surface array of the pneumatic dividing disc (2), vertical plates (22) are fixed on two sides of the rectangular groove (21), the vertical plates (22) are fixed on the pneumatic dividing disc (2), an arc-shaped surface (23) is arranged on one side of each vertical plate (22), a top plate (222) for limiting the motor housing is fixed on the other side of each vertical plate, and the top plate (222) is located between the two vertical plates (22);

One side of riser (22) is fixed with cushion (221) that are used for supporting motor housing, and pneumatic graduated disk (2) are gone up and are located the both sides of rectangular channel (21) and all are fixed with cylinder two (24), and the output rigid coupling of cylinder two (24) has right angle piece (25) that are used for driving the centre gripping, and the inclined plane of two right angle pieces (25) sets up relatively, rotates on riser (22) and is equipped with slide bar (26), and the one end rigid coupling of slide bar (26) has taper piece (27), and the other end is fixed and is equipped with splint (29).

4. A motor shell drilling machine tool according to claim 3, wherein the conical surface at one end of the conical block (27) is in sliding connection with the inclined surface of the right-angle block (25), the spring I (28) is fixedly connected at the other end of the conical block, the spring I (28) is fixed between Yu Liban (22) and the conical block (27), the limiting plate (20) is fixed on the clamping plate (29), symmetrically distributed bottom blocks (33) are fixed in the rectangular groove (21), and the bottom blocks (33) are positioned below the clamping plate (29);

The bottom block (33) is provided with a guide post (31) in a sliding manner, the guide post (31) is provided with a second spring (32), one end of the guide post (31) is fixedly connected with a limiting block, the other end of the guide post is fixedly connected with the supporting plate (3), and the second spring (32) is fixed between the supporting plate (3) and the bottom block (33).

5. The motor shell drilling machine tool according to claim 1, wherein one side of the mounting table (4) is fixedly connected with a connecting frame (41), the connecting frame (41) is fixedly connected with one side of the machine table (1), the driving assembly consists of an X-axis sliding table (42), a Y-axis sliding table (43) and a Z-axis sliding table (44), the X-axis sliding table (42) is fixed on the mounting table (4), the Y-axis sliding table (43) is arranged on the X-axis sliding table (42) in a sliding manner, the Z-axis sliding table (44) is arranged on the Y-axis sliding table (43) in a sliding manner, and the lifting plate (45) is arranged on the Z-axis sliding table (44) in a sliding manner;

One end of the lifting plate (45) is fixedly connected with a sloping plate (46) for installing a third cylinder (47), a toothed ring (491) is fixed on the inner side of a ring block (49), a first motor (401) is fixed on the tool rest (48), a first gear (40) is fixed at the output end of the first motor (401), the first gear (40) is matched with the toothed ring (491), a second motor (481) is fixed on the tool rest (48), and a first bevel gear (482) is fixedly connected at the output end of the second motor (481).

6. The motor housing drilling machine of claim 5, wherein the inner wall of the straight slot (484) is fixed with a guiding convex strip (485), the locking screw (486) is in threaded connection with the mounting block (483), and one end of the locking screw (486) is fixed with a spherical block (487).

7. The motor shell drilling machine tool according to claim 1, wherein a fixing seat (5) is fixed on the mounting table (4), the fixing seat (5) is fixed on the connecting frame (41), a vertical frame (51) is fixed on the fixing seat (5), symmetrically distributed arc rods (52) are fixedly connected to the upper ends of the vertical frames (51), guide rods (53) are fixed on the inner sides of the arc rods (52), arc racks (521) are fixedly arranged on the arc rods (52), a moving block (54) is slidably arranged on the two guide rods (53), and a motor III (55) is fixedly arranged on the moving block (54).

8. The motor shell drilling machine tool according to claim 7, wherein the output end of the motor III (55) is fixedly connected with a gear II (56), the gear II (56) is matched with an arc rack, a cylinder IV (57) is fixed on the moving block (54), the output end of the cylinder IV (57) is fixedly provided with a fixing plate (58), two ends of the fixing plate (58) are fixedly connected with limiting rods (50) used for clamping the motor shell, ejector rods (581) which are symmetrically distributed are fixedly connected on the fixing plate (58), and sucking discs (59) used for locking the motor shell are fixed on the fixing plate (58).

9. A motor casing drilling tool applied to the motor casing drilling machine tool according to any one of claims 1-8, which is characterized in that the drilling tool comprises a drilling tool holder (6) for milling holes of the motor casing, an annular groove (61) is arranged on the side surface of the drilling tool holder (6), the drilling tool holder (6) slides in a straight groove (484), the annular groove (61) is in sliding connection with a guide raised strip (485), a bevel gear II (62) is fixedly arranged on the drilling tool holder (6), and the bevel gear II (62) is matched with the bevel gear I (482).

10. The motor housing drilling tool according to claim 9, wherein the drilling tool holder (6) is provided with a mounting hole (63), a drilling tool (64) is fixed in the mounting hole (63), a through hole (65) is formed in the drilling tool (64), a limit groove (66) is formed in the drilling tool (64), a through groove (67) is formed in the drilling tool (64), a tool bit (68) is slidably arranged in the through groove (67), and the tool bit (68) is perpendicular to the drilling tool (64).