阅读说明：本技术 一种用于新能源电机外壳的高效加工设备 (A high-efficient processing equipment for new forms of energy motor housing ) 是由 郑小琴 于 2021-08-23 设计创作，主要内容包括：本发明涉及新能源电机附属装置的技术领域,特别是涉及一种用于新能源电机外壳的高效加工设备,其结构简单,在电机外壳钻孔时,可自动将其夹紧,送至钻头下方,然后进行钻孔,加工完毕后,可自动将电机外壳送回至原处,并将电机外壳释放；包括：加工台,作为装置整体的基体,加工台上设置有升降机构、驱动机构、滑动机构和夹紧机构,加工台上对称设置有两个导向孔,导向孔包括呈弧形的驱动段以及与驱动段连通的水平段；升降机构输出端安装有传动箱,传动箱输入端设置有电机,传动箱设置有四个输出端,每个输出端均安装有钻头；驱动机构用于驱动滑动机构进行移动,驱动机构包括固定在加工台上的支撑杆,支撑杆上固定安装有支撑轴。(The invention relates to the technical field of new energy motor accessories, in particular to high-efficiency processing equipment for a new energy motor shell, which has a simple structure, can automatically clamp the motor shell when the motor shell is drilled, send the motor shell to the position below a drill bit, then drill the motor shell, and automatically send the motor shell back to the original position after the processing is finished and release the motor shell; the method comprises the following steps: the processing table is used as a whole base body of the device, a lifting mechanism, a driving mechanism, a sliding mechanism and a clamping mechanism are arranged on the processing table, two guide holes are symmetrically arranged on the processing table, and each guide hole comprises an arc-shaped driving section and a horizontal section communicated with the driving section; the output end of the lifting mechanism is provided with a transmission case, the input end of the transmission case is provided with a motor, the transmission case is provided with four output ends, and each output end is provided with a drill bit; the driving mechanism is used for driving the sliding mechanism to move, the driving mechanism comprises a supporting rod fixed on the processing table, and a supporting shaft is fixedly installed on the supporting rod.)

1. A high-efficient processing equipment for new forms of energy motor housing which characterized in that includes:

the device comprises a processing table (1) as a whole base body of the device, wherein a lifting mechanism, a driving mechanism, a sliding mechanism and a clamping mechanism are arranged on the processing table (1), two guide holes are symmetrically arranged on the processing table (1), and each guide hole comprises an arc-shaped driving section (2) and a horizontal section (3) communicated with the driving section (2);

the output end of the lifting mechanism is provided with a transmission case (4), the input end of the transmission case (4) is provided with a motor (5), the transmission case (4) is provided with four output ends, and each output end is provided with a drill bit (6);

the driving mechanism is used for driving the sliding mechanism to move, the driving mechanism comprises a supporting rod (7) fixed on the machining table (1), a supporting shaft (8) is fixedly mounted on the supporting rod (7), the driving mechanism further comprises a first driving rod (9) and a driving plate (10), the first driving rod (9) is in an obtuse angle shape, the driving plate (10) comprises a vertical section (11) and an arc section (12), a driving groove is formed in the driving plate (10), and the driving groove comprises a vertical part (13) and an arc-shaped part (14);

the sliding mechanism is used for supporting the motor shell (42) and moving the motor shell (42);

the two groups of clamping mechanisms are symmetrically and slidably mounted on the sliding mechanism and are driven by the guide holes to clamp the motor shell (42).

2. The efficient processing equipment for the new energy motor housing is characterized in that the lifting mechanism comprises a door-shaped support (15) connected with the processing table (1), an oil cylinder (16) is mounted on the support (15), a connecting frame (17) for fixing the transmission case (4) is mounted at the output end of the oil cylinder (16), a fixed block (18) is fixedly connected onto the connecting frame (17), and a second driving rod (19) is slidably mounted on the fixed block (18).

3. The high-efficiency processing device for the new energy motor housing as claimed in claim 2, wherein the driving mechanism further comprises a first driving shaft (20) and a second driving shaft (21), the first driving shaft (20) is fixed at one end of the second driving rod (19) close to the first driving rod (9), the second driving shaft (21) is fixed at one end of the first driving rod (9) far away from the second driving rod (19), a first guide bearing (22) is arranged at the other end of the first driving shaft (20), the first guide bearing (22) is fixed on the first driving rod (9), a second guide bearing (23) is fixed at the other end of the second driving shaft (21), the driving plate (10) is connected with a sliding mechanism, and the second guide bearing (23) extends into the driving groove.

4. The efficient processing equipment for the new energy motor housing as claimed in claim 3, wherein the sliding mechanism comprises two sets of rails (24) fixed on the top of the processing table (1), a sliding seat (25) is slidably mounted on the two sets of rails (24), a transition frame (26) is fixedly connected to one side of the sliding seat (25) close to the supporting rod (7), the transition frame (26) is connected with the driving plate (10), sliding holes are formed in two sides of the sliding seat (25), and the clamping mechanism is slidably mounted at the sliding holes.

5. The efficient processing equipment for the new energy motor shell as claimed in claim 4, wherein the clamping mechanism comprises a slide block (27) in an I shape, a connecting plate (28) is fixedly connected to the slide block (27), a threaded rod (29) is connected to the connecting plate (28) in a threaded manner, a hexagonal groove is formed in one end of the threaded rod (29), a clamping plate (30) is rotatably mounted at the other end of the threaded rod through a bearing, the clamping plate (30) is in a wedge shape, the transverse end face of the clamping plate (30) is in an arc shape, a rubber pad is mounted on one side, close to the motor shell (42), of the clamping plate (30), two groups of guide rods (31) for preventing the clamping plate from rotating are mounted on the clamping plate (30), and the guide rods (31) penetrate through the connecting plate (28);

and a third driving shaft (32) is installed at the bottom of the sliding block (27), and a third guide bearing extending into the guide hole is arranged at the other end of the third driving shaft (32).

6. The efficient processing equipment for the new energy motor shell according to claim 1, further comprising a pressing plate (33), wherein four corners of the transmission case (4) are all fixedly connected with a connecting block, a linear bearing is fixed on the connecting block, a sliding rod (34) is slidably mounted in the linear bearing, the other end of the sliding rod (34) is connected with the pressing plate (33), a first spring (35) is sleeved on the sliding rod (34), two ends of the first spring (35) are respectively in close contact with the connecting block and the pressing plate (33), a slip-preventing ring (36) used for preventing the slip-preventing ring from being separated from the linear bearing is mounted on the sliding rod (34), and four through holes for a drill bit (6) to pass through are formed in the pressing plate (33).

7. The efficient processing equipment for the new energy motor housing according to claim 4, wherein the sliding mechanism further comprises two groups of damping mechanisms, the two groups of damping mechanisms are symmetrically installed on the sliding base (25), the damping mechanisms comprise L-shaped frames (37) connected with the sliding base (25), tightening rods (38) are slidably installed on the L-shaped frames (37), one ends of the tightening rods (38) are in contact with the rails (24), supporting rings (39) are installed on the tightening rods (38), second springs (40) are sleeved on the tightening rods (38), and two ends of each second spring (40) are respectively in close contact with the L-shaped frames (37) and the supporting rings (39).

8. The efficient processing equipment for the new energy motor housing as claimed in claim 3, wherein the driving mechanism further comprises a spring plate (41) fixed on the support rod (7), and the other end of the spring plate (41) is in close contact with the first driving rod (9).

Technical Field

The invention relates to the technical field of new energy motor accessories, in particular to efficient processing equipment for a new energy motor shell.

Background

An electric Motor (Motor) is a device that converts electrical energy into mechanical energy. The electromagnetic power generator utilizes an electrified coil (namely a stator winding) to generate a rotating magnetic field and acts on a rotor (such as a squirrel-cage closed aluminum frame) to form magnetoelectric power rotating torque. The motors are divided into direct current motors and alternating current motors according to different power supplies, most of the motors in the power system are alternating current motors, and can be synchronous motors or asynchronous motors (the rotating speed of a stator magnetic field of the motor is different from the rotating speed of a rotor to keep synchronous speed). The motor mainly comprises a stator and a rotor, and the direction of the forced movement of the electrified conducting wire in a magnetic field is related to the current direction and the direction of a magnetic induction line (magnetic field direction). The working principle of the motor is that the magnetic field exerts force on current to rotate the motor.

The motor shell is divided into two parts, and the two parts are connected together through bolts and nuts; the motor shell needs to be punched at four positions simultaneously during processing, and the device in the prior art has the following defects: need the manual tight motor housing of clamp and send to the drill bit below, then drill hole, this kind of mode machining efficiency is not high, needs the operator to operate more step to still cause the operator to take place the incident easily, cause the loss.

Disclosure of Invention

In order to solve the technical problems, the invention provides high-efficiency machining equipment for a new energy motor shell, which is simple in structure, can automatically clamp the motor shell when the motor shell is drilled, convey the motor shell to the position below a drill bit, then drill the motor shell, and automatically return the motor shell to the original position after machining is finished and release the motor shell.

The invention discloses efficient processing equipment for a new energy motor shell, which comprises:

the processing table is used as a whole base body of the device, a lifting mechanism, a driving mechanism, a sliding mechanism and a clamping mechanism are arranged on the processing table, two guide holes are symmetrically arranged on the processing table, and each guide hole comprises an arc-shaped driving section and a horizontal section communicated with the driving section;

the output end of the lifting mechanism is provided with a transmission case, the input end of the transmission case is provided with a motor, the transmission case is provided with four output ends, and each output end is provided with a drill bit;

the driving mechanism is used for driving the sliding mechanism to move, comprises a supporting rod fixed on the machining table, a supporting shaft is fixedly mounted on the supporting rod, and further comprises a first driving rod and a driving plate, the first driving rod is in an obtuse angle shape, the driving plate comprises a vertical section and an arc section, a driving groove is formed in the driving plate, and the driving groove comprises a vertical part and an arc part;

the sliding mechanism is used for supporting the motor shell and moving the motor shell;

the two groups of clamping mechanisms are symmetrically and slidably mounted on the sliding mechanism and are driven by the guide holes to clamp the motor shell.

Preferably, the lifting mechanism comprises a door-shaped support connected with the processing table, an oil cylinder is mounted on the support, a connecting frame for fixing the transmission case is mounted at the output end of the oil cylinder, a fixed block is fixedly connected to the connecting frame, and a second driving rod is slidably mounted on the fixed block.

Preferably, the driving mechanism further includes a first driving shaft and a second driving shaft, the first driving shaft is fixed to one end of the second driving rod close to the first driving rod, the second driving shaft is fixed to one end of the first driving rod far away from the second driving rod, a first guide bearing is arranged at the other end of the first driving shaft, the first guide bearing is fixed to the first driving rod, a second guide bearing is fixed to the other end of the second driving shaft, the driving plate is connected with the sliding mechanism, and the second guide bearing extends into the driving groove.

Preferably, slide mechanism is including fixing two sets of tracks at the processing bench top, and slidable mounting has the slide on two sets of tracks, and the slide is close to bracing piece one side fixedly connected with transition frame, and the transition frame is connected with the drive plate, and the slide both sides all are provided with the sliding hole, clamping mechanism slidable mounting is in sliding hole department.

Preferably, the clamping mechanism comprises an i-shaped sliding block, a connecting plate is fixedly connected to the sliding block, a threaded rod is connected to the connecting plate in a threaded manner, a hexagonal groove is formed in one end of the threaded rod, a clamping plate is rotatably mounted at the other end of the threaded rod through a bearing, the clamping plate is wedge-shaped, the transverse end face of the clamping plate is arc-shaped, a rubber pad is mounted on one side, close to the motor shell, of the clamping plate, two groups of guide rods for preventing the clamping plate from rotating are mounted on the clamping plate, and the guide rods penetrate through the connecting plate;

and a third driving shaft is installed at the bottom of the sliding block, and a third guide bearing extending into the guide hole is arranged at the other end of the third driving shaft.

Preferably, still include the pressure strip, the equal fixed connection piece in four angles departments of transmission case fixes linear bearing on the connecting block, and slidable mounting has the slide bar in the linear bearing, and the slide bar other end is connected with the pressure strip, and the cover is equipped with first spring on the slide bar, and first spring both ends respectively with connecting block and pressure strip in close contact with to the installation is used for preventing its anticreep ring that breaks away from with linear bearing on the slide bar, and sets up four through-holes that supply the drill bit to pass on the pressure strip.

Preferably, slide mechanism still includes damper, damper is two sets of, and the symmetry is installed on the slide, and damper includes the L type frame of being connected with the slide, and slidable mounting has the tight pole in top on the L type frame, and tight pole one end and track contact in top install the support ring on the tight pole in top, the suit second spring on the tight pole in top, second spring both ends respectively with L type frame and support ring in close contact with.

Preferably, the driving mechanism further comprises a spring piece fixed on the supporting rod, and the other end of the spring piece is in close contact with the first driving rod.

Compared with the prior art, the invention has the beneficial effects that: arranging a motor shell on a sliding mechanism, operating a lifting mechanism to enable a transmission case, a drill bit and the like to move downwards, enabling a first driving rod to rotate under the driving of the lifting mechanism, enabling the sliding mechanism and the motor shell to move towards one side of the drill bit by the aid of the rotating first driving rod, enabling a clamping mechanism to act to clamp the motor shell tightly under the action of an arc-shaped section of a guide hole, enabling the transmission case which moves downwards to enable the first driving rod to rotate continuously when the motor shell is positioned under the drill bit, enabling the rotating first driving rod not to influence the sliding mechanism and the position of the motor shell, then enabling four drill bits which are driven by motors to rotate at a high speed to punch four holes on the motor shell simultaneously by the aid of the four drill bits which move downwards, operating the lifting mechanism to enable the transmission case and the drill bit to ascend for a section of height, enabling the sliding mechanism and the motor shell to slide towards one side far away from the drill bit by the action of the driving mechanism, and under the effect of the arc section of guiding hole, clamping mechanism moves to keeping away from motor housing one side, releases motor housing, and after moving to initial position, the user take off motor housing can, for prior art's mode, this device need not manually with the motor clamp tightly, the pay-off, with the motor release, get the material at motor housing processing's in-process, reduced user's operating procedure, reduce intensity of labour, improve machining efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top perspective view of the right front side of FIG. 1 of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a front right side bottom perspective view of the present invention of FIG. 1;

FIG. 5 is a top perspective view of the hidden bracket and attachment bracket of FIG. 1 from the left and front of the present invention;

FIG. 6 is a partial enlarged view of portion A of FIG. 5;

FIG. 7 is a partial enlarged view of portion B of FIG. 5;

FIG. 8 is a partial enlarged view of portion C of FIG. 5;

FIG. 9 is a top right front side perspective view of the processing table, drive section, horizontal section, and clamping mechanism;

in the drawings, the reference numbers: 1. a processing table; 2. a drive section; 3. a horizontal segment; 4. a transmission case; 5. a motor; 6. a drill bit; 7. a support bar; 8. a support shaft; 9. a first drive lever; 10. a drive plate; 11. a vertical section; 12. a circular arc section; 13. a vertical portion; 14. a circular arc-shaped portion; 15. a support; 16. an oil cylinder; 17. a connecting frame; 18. a fixed block; 19. a second drive lever; 20. a first drive shaft; 21. a second drive shaft; 22. a first guide bearing; 23. a second guide bearing; 24. a track; 25. a slide base; 26. a transition frame; 27. a slider; 28. a connecting plate; 29. a threaded rod; 30. a clamping plate; 31. a guide bar; 32. a third drive shaft; 33. a compression plate; 34. a slide bar; 35. a first spring; 36. the anti-drop ring; 37. an L-shaped frame; 38. a tightening rod; 39. a support ring; 40. a second spring; 41. a spring plate; 42. and a motor housing.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 9, the high-efficiency processing equipment for the new energy motor housing of the present invention includes:

the device comprises a processing table 1, a lifting mechanism, a driving mechanism, a sliding mechanism and a clamping mechanism, wherein the processing table 1 is used as a whole substrate of the device, two guide holes are symmetrically arranged on the processing table 1, and each guide hole comprises an arc-shaped driving section 2 and a horizontal section 3 communicated with the driving section 2;

the output end of the lifting mechanism is provided with a transmission case 4, the input end of the transmission case 4 is provided with a motor 5, the transmission case 4 is provided with four output ends, and each output end is provided with a drill bit 6;

the driving mechanism is used for driving the sliding mechanism to move, and comprises a supporting rod 7 fixed on the machining table 1, a supporting shaft 8 fixedly mounted on the supporting rod 7, a first driving rod 9 and a driving plate 10, wherein the first driving rod 9 is in an obtuse angle shape, the driving plate 10 comprises a vertical section 11 and an arc section 12, a driving groove is formed in the driving plate 10, and the driving groove comprises a vertical part 13 and an arc part 14;

the sliding mechanism is used for supporting the motor shell 42 and moving the motor shell 42;

the two groups of clamping mechanisms are symmetrically and slidably mounted on the sliding mechanism and are driven by the guide holes to clamp the motor shell 42.

In this embodiment, the motor housing 42 is placed on the sliding mechanism, the lifting mechanism is operated to move the transmission case 4 and the drill 6 downward, the first driving rod 9 is rotated by the driving of the lifting mechanism, the sliding mechanism and the motor housing 42 are moved to the drill 6 side by the rotating first driving rod 9, the clamping mechanism is operated to clamp the motor housing 42 under the action of the arc-shaped section of the guide hole, when the motor housing 42 is positioned right under the drill 6, the first driving rod 9 is continuously rotated by the transmission case 4 which is continuously moved downward, but the rotating first driving rod 9 does not affect the positions of the sliding mechanism and the motor housing 42, then the four drill bits 6 which are driven by the motor 5 to rotate at high speed are moved downward to simultaneously punch four holes on the motor housing 42, after the punching is completed, the lifting mechanism is operated to lift the transmission case 4 and the drill 6, after rising a section height, actuating mechanism action makes sliding mechanism and motor housing 42 all slide to keeping away from drill bit 6 one side, and under the effect of the segmental arc of guiding hole, clamping mechanism moves to keeping away from motor housing 42 one side, release motor housing 42, remove to initial position after, the user take off motor housing 42 can, for prior art's mode, this device is at the in-process of motor housing 42 processing, need not manually to press from both sides tightly motor 5, the pay-off, release motor 5, get the material, user's operating procedure has been reduced, labor intensity is reduced, and machining efficiency is improved.

Further, as shown in fig. 1, fig. 2 and fig. 4, the lifting mechanism includes a bracket 15 connected to the processing table 1, the bracket 15 is provided with an oil cylinder 16, an output end of the oil cylinder 16 is provided with a connecting frame 17 for fixing the transmission case 4, the connecting frame 17 is fixedly connected with a fixing block 18, and the fixing block 18 is provided with a second driving rod 19 in a sliding manner.

In this embodiment, the cylinder 16 is controlled to extend or shorten its piston rod, so as to drive the connecting frame 17, the transmission case 4, the motor 5, the drill 6, the connecting frame 17 and the second driving rod 19 to ascend or descend, and the position of the second driving rod 19 relative to the connecting frame 17 is variable to adapt to the lateral displacement thereof.

Further, as shown in fig. 2, 5 to 7, the driving mechanism further includes a first driving shaft 20 and a second driving shaft 21, the first driving shaft 20 is fixed to one end of the second driving rod 19 close to the first driving rod 9, the second driving shaft 21 is fixed to one end of the first driving rod 9 far from the second driving rod 19, a first guide bearing 22 is arranged at the other end of the first driving shaft 20, the first guide bearing 22 is fixed to the first driving rod 9, a second guide bearing 23 is fixed to the other end of the second driving shaft 21, the driving plate 10 is connected to the sliding mechanism, and the second guide bearing 23 extends into the driving slot.

In the present embodiment, as shown in fig. 1, when the piston rod of the cylinder 16 is extended, the connecting frame 17, the fixed block 18, the second driving lever 19, the first driving shaft 20 and the first guide bearing 22 are moved downward, since the first driving lever 9 rotates about the supporting shaft 8, the first guide bearing 22 moving downward drives the first driving lever 9, the second driving shaft 21 and the second guide bearing 23 to rotate clockwise about the supporting shaft 8, when the second guide bearing 23 is located at the vertical portion 13 of the driving groove, the second guide bearing 23 rotating clockwise about the supporting shaft 8 moves the driving lever 10, the sliding mechanism and the motor housing 42 thereon to the left, when the second guide bearing 23 is located at the boundary between the vertical portion 13 and the circular arc portion 14, the motor housing 42 moves to the right below the drill bits 6, each drill bit 6 is located just right above the waiting position of the motor housing 42, the first guide bearing 22 which continues to move downwards continues to enable the second guide bearing 23 to rotate around the support shaft 8, but the second guide bearing 23 rotates along the arc-shaped portion 14, the arc-shaped portion 14 takes the support shaft 8 as the center of a circle at the moment, the position of the motor shell 42 cannot be affected, and in the process, the drill bit 6 descends to drill four holes in the motor shell 42;

after the drilling is completed, the cylinder 16 is operated to move its piston rod upward, first the drill 6 is disengaged from the motor housing 42, and then the second guide bearing 23 is moved to the circular arc portion 14 of the driving groove, so that the slide mechanism and the motor 5 are simultaneously moved to the side away from the drill 6.

Further, as shown in fig. 2, the sliding mechanism includes two sets of rails 24 fixed on the top of the processing table 1, a sliding seat 25 is slidably mounted on the two sets of rails 24, a transition frame 26 is fixedly connected to one side of the sliding seat 25 close to the supporting rod 7, the transition frame 26 is connected with the driving plate 10, sliding holes are formed in two sides of the sliding seat 25, and the clamping mechanism is slidably mounted at the sliding holes.

In this embodiment, the left and right moving drive plate 10 drives the transition frame 26 and the slide carriage 25 to slide along the two sets of rails 24, thereby sliding the motor housing 42 and the clamping mechanism.

Further, as shown in fig. 3, 4 and 8, the clamping mechanism includes a slide block 27 in an i-shape, a connecting plate 28 is fixedly connected to the slide block 27, a threaded rod 29 is connected to the connecting plate 28 by screw threads, a hexagonal groove is formed at one end of the threaded rod 29, a clamping plate 30 is rotatably mounted at the other end of the threaded rod through a bearing, the clamping plate 30 is in a wedge shape, the transverse end surface of the clamping plate 30 is in an arc shape, a rubber pad is mounted on one side of the clamping plate 30 close to the motor housing 42, two sets of guide rods 31 for preventing the clamping plate 30 from rotating are mounted on the clamping plate 30, and the guide rods 31 penetrate through the connecting plate 28;

a third driving shaft 32 is installed at the bottom of the sliding block 27, and a third guide bearing extending into the guide hole is arranged at the other end of the third driving shaft 32.

In the embodiment, an internal hexagonal wrench is inserted into the hexagonal groove to rotate the threaded rod 29, so that the distance between the clamping plate 30 and the motor shell 42 is changed, the motor can be simultaneously suitable for motors 5 with different sizes, and the debugging is easier in the installation process;

when the third guide bearing on the third driving shaft 32 passes through the driving section 2 during the rightward movement of the sliding base 25, the sliding block 27 and the clamping plate 30 move to the side close to the motor housing 42, and when the third guide bearing moves along the horizontal section 3, the distance between the clamping plate 30 and the motor housing 42 is unchanged, so that the motor housing 42 is kept in a clamped state;

when the same type of motor 5 is initially processed, the third guide bearing is moved to the horizontal section 3, the oil cylinder 16 is stopped, then the threaded rod 29 is rotated to enable the rubber pad on the clamping plate 30 to clamp the motor shell 42, the clamping plate 30 is wedge-shaped, the transverse end face of the clamping plate 30 is arc-shaped, and in the processing process of the motor shell 42, the clamping plate 30 generates downward component force to the motor shell 42, so that the motor shell is not prone to shaking.

Further, as shown in fig. 2 and 6, the drilling machine further comprises a pressing plate 33, four corners of the transmission case 4 are all fixedly connected with a connecting block, a linear bearing is fixed on the connecting block, a sliding rod 34 is slidably mounted in the linear bearing, the other end of the sliding rod 34 is connected with the pressing plate 33, a first spring 35 is sleeved on the sliding rod 34, two ends of the first spring 35 are respectively in close contact with the connecting block and the pressing plate 33, a slip-off prevention ring 36 used for preventing the slip-off prevention ring from being disengaged from the linear bearing is mounted on the sliding rod 34, and four through holes for the drill bit 6 to pass through are formed in the pressing plate 33.

In the embodiment, after the motor housing 42 moves to be right below the drill bit 6, the downward moving pressing plate 33 presses the motor housing 42, the sliding rod 34 moves upward relative to the linear bearing, the first spring 35 is compressed, and the drill bit 6 penetrates through the through hole to punch the motor housing 42, so that the motor housing 42 is kept static in the whole process, and the processing quality is improved.

Further, as shown in fig. 3 to 8, the sliding mechanism further includes two sets of damping mechanisms, the two sets of damping mechanisms are symmetrically installed on the sliding base 25, each damping mechanism includes an L-shaped frame 37 connected to the sliding base 25, a tightening rod 38 is installed on the L-shaped frame 37 in a sliding manner, one end of the tightening rod 38 contacts with the rail 24, a support ring 39 is installed on the tightening rod 38, a second spring 40 is sleeved on the tightening rod 38, and two ends of the second spring 40 are respectively in close contact with the L-shaped frame 37 and the support ring 39.

In the present embodiment, one end of the tightening rod 38 is kept in close contact with the rail 24 by the elastic force of the second spring 40, so that the slider 25 can slide relative to the rail 24 only under a large external force.

Further, as shown in fig. 1 to 2, the driving mechanism further includes a spring 41 fixed on the support rod 7, and the other end of the spring 41 is in close contact with the first driving rod 9.

In this embodiment, through the elastic sheet 41, when the first driving rod 9 starts to rotate, the elastic sheet 41 provides elastic force for the first driving rod 9, so that the first driving rod is more easily rotated, and the movement is smoother.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.