CN217252993U

CN217252993U - Brake block perforating device

Info

Publication number: CN217252993U
Application number: CN202220756498.4U
Authority: CN
Inventors: 邹名理
Original assignee: Zaoyang Longsheng Friction Material Co Ltd
Current assignee: Zaoyang Longsheng Friction Material Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-08-23
Anticipated expiration: 2032-04-01

Abstract

The utility model relates to the technical field of brake pad processing equipment, and discloses a brake pad punching device, which comprises a fixing device for positioning a brake pad and a punching device for punching the brake pad, wherein the fixing device comprises a fixing seat, the upper surface of the fixing seat is an arc surface, the arc surface of the fixing seat is matched with the inner arc surface of the brake pad, the punching device comprises a drill bit, the drill bit is arranged above the fixing seat through a rotary lifting mechanism, the two axial sides of the arc surface of the fixing seat are respectively provided with an X-shaped clamping device for fixing the brake pad on the arc surface of the fixing seat, the utility model solves the problem that the brake pad is difficult to be fixed and punched by the existing equipment, the fixing position of each brake pad is consistent in the continuous production process, the positioning precision is high, the processing efficiency is high, and the universality is good, the labor intensity is low.

Description

Brake block perforating device

Technical Field

The utility model relates to a brake block processing equipment technical field, in particular to brake block perforating device.

Background

The brake block is a device which converts kinetic energy into heat energy through friction to realize braking and releases the heat energy to the environment in time, and is widely used for moving machine tools and motor vehicles. The performance of the machine tool is directly related to whether the machine tool and the motor vehicle can safely and reliably operate. However, the brake pad has an arc structure, and the friction coefficient of the brake pad changes greatly at high temperature and the thermal wear is large, so that punching processing needs to be performed on the brake pad. The existing equipment is difficult to fix and punch the brake pad, cannot realize continuous punching operation of the brake pad, and is low in processing reliability. The common equipment for processing the brake pad has low processing efficiency and greatly increases the production cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a brake block perforating device has solved the fixed comparatively difficult problem that punches of existing equipment with the brake block, and the fixed position of every brake block is unanimous at continuous production's in-process, and positioning accuracy is high, and machining efficiency is high, and the commonality is good, and artifical intensity of labour is little.

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

the utility model provides a brake block perforating device, includes the perforating device that is used for going on fixing a position the fixing device that advances line location and is used for punching the brake block, fixing device includes the fixing base, the upper surface of fixing base is the arcwall face, the arcwall face of fixing base and the intrados face phase-match of brake block, perforating device includes the drill bit, the drill bit passes through the top that rotatory elevating system installed at the fixing base, the axial both sides of fixing base arcwall face all are equipped with and are used for fixing the brake block "X" on the arc surface of fixing base and press from both sides tightly install.

Through adopting above-mentioned technical scheme, the arcwall face of fixing base is used for supporting the brake block among the fixing device, the clamping device is carried out the axial to the brake block to "X" of the axial both sides of fixing base arcwall face and is spacing and press from both sides tightly, make the brake block fixed, recycle and rotate elevating system drive drill bit and punch the operation to the brake block, the problem that the existing equipment is fixed the brake block and punches comparatively difficultly has been solved, and the fixed position of every brake block is unanimous at continuous production's in-process, positioning accuracy is high, machining efficiency is high.

The utility model discloses a further set up to: the X-shaped clamping device comprises a first connecting rod and a second connecting rod which are mutually crossed, the crossed part of the first connecting rod and the second connecting rod is rotatably connected through a rotating shaft, a first pressing block and a second pressing block which are used for fixing a brake pad on the arc-shaped surface of the fixing seat are respectively arranged at the upper ends of the first connecting rod and the second connecting rod, the lower ends of the first connecting rod and the second connecting rod are connected with a first sliding block and a second sliding block, the first sliding block and the second sliding block are respectively in threaded connection with two sections of threads of a bidirectional screw rod in different rotation directions, one end of the bidirectional screw rod is fixedly connected with a driving motor, the lower ends of the first connecting rods of the X-shaped clamping devices at two sides of the fixing seat are connected with the first sliding block through a third connecting rod, and the lower ends of the second connecting rods of the X-shaped clamping devices at two sides of the fixing seat are connected with the second sliding block through a fourth connecting rod.

By adopting the technical scheme, the driving motor drives the bidirectional screw rod to rotate, so as to drive the first sliding block and the second sliding block which are in threaded connection with the threads with different rotation directions at the two ends of the bidirectional screw rod to mutually approach or separate, thereby driving the lower ends of the first connecting rod and the second connecting rod to be close to or far away from each other, driving the upper ends of the first connecting rod and the second connecting rod to be far from or close to each other when the lower ends of the first connecting rod and the second connecting rod are close to or far away from each other, when the upper ends of the first connecting rod and the second connecting rod are close to each other until the upper ends of the first connecting rod and the second connecting rod are contacted with the axial end face of the brake pad, the brake pad is axially positioned, meanwhile, the first pressing block and the second pressing block which are arranged at the upper ends of the first connecting rod and the second connecting rod both move towards one side of the outer cambered surface of the brake pad until the pressing blocks are pressed on the outer cambered surface of the brake pad, therefore, the brake pad is compressed and fixed, manual operation is not needed, the fixing process is simple and efficient, manual operation is not needed, and the fixing process is simple and efficient.

The utility model discloses a further set up to: the automatic brake pad punching device is characterized in that an extending hole opposite to a position to be punched on the brake pad is formed in the arc-shaped surface of the fixing seat, an automatic feeding device is further arranged on the other axial side of the arc-shaped surface of the fixing seat and comprises a feeding seat and a feeding driving mechanism, the feeding seat is used for supporting the brake pad to be punched, the feeding driving mechanism is used for transferring the brake pad on the feeding seat to the fixing seat, the feeding driving mechanism is located on one axial side of the arc-shaped surface of the feeding seat, the upper surface of the feeding seat is an arc-shaped surface which is equal to the upper surface of the fixing seat in height and diameter, a containing cavity formed by connecting four side plates is formed on one axial side of the feeding seat, a through trough is arranged on the side plate of the containing cavity, which is opposite to the fixing seat, the trough is matched with the cross-sectional shape of the brake pad, and the bottom edge of the trough is parallel to and equal in height with the upper surface of the feeding seat.

Through adopting above-mentioned technical scheme, automatic feeding device is arranged in adding the brake block on the fixing base automatically, once holds a plurality of brake blocks through holding the chamber among the automatic feeding device, greatly reduced artifical reinforced frequency, material loading actuating mechanism among the automatic feeding device is arranged in proper order to transfer the brake block that holds in the chamber with the brake block to the fixing base on the processing of punching, and is not only efficient, and artifical intensity of labour is little moreover.

The utility model discloses a further set up to: the feeding driving mechanism comprises a driving cylinder and a driving plate, the driving plate is an arc-shaped plate with the same shape as the brake pad, one axial end of the driving plate is fixedly connected with a telescopic shaft of the driving cylinder, the arc-shaped plate is matched with the cross section of the brake pad in shape, and the lower surface of the arc-shaped plate is parallel to and equal in height with the arc-shaped surface of the feeding seat.

Through adopting above-mentioned technical scheme, drive the axial reciprocating motion of drive plate along the brake block when driving actuating cylinder's telescopic shaft extension to bear on the arcwall face of material loading seat the bottommost brake block promotes to the arcwall face of fixing base through the silo, the brake block of this brake block top falls on the top of material loading seat in proper order under the effect of self gravity, drive actuating cylinder's telescopic shaft reciprocating motion, thereby realize in proper order with the brake block in the brake block holding chamber shift to the fixing base on the processing of punching.

The utility model discloses a further set up to: the pressing surfaces of the first pressing block and the second pressing block are respectively provided with an adjusting hole, a convex block is arranged in each adjusting hole, the convex block is connected with the adjusting holes in a sliding mode, the bottom of each convex block is connected with the bottom of each adjusting hole through a compression spring, and one end of each convex block stretches out of each adjusting hole in a natural state of the compression spring.

Through adopting above-mentioned technical scheme, when compact heap one and compact heap two moved to the extrados of brake face on, the lug on the compact face of compact heap one and compact heap two contradicts with the extrados of brake block, and the lug passes through regulating spring to be connected with the bottom of adjusting the hole, can adapt to compressing tightly of the brake block of different thickness, and the commonality is better.

The utility model discloses a further set up to: the end of the lug extending out of the adjusting hole is arc-shaped.

By adopting the technical scheme, when the arc-shaped end of the bump moves along with the first pressing block and the second pressing block to the brake pad, the arc-shaped end of the bump is more easily contacted with and pressed against the outer arc surface of the brake pad, the surface of the brake pad cannot be damaged while a certain pressing force is exerted, and the equipment performance is better.

The utility model discloses a further set up to: the rotary lifting mechanism comprises a longitudinal slide rail and a slide block which is in sliding connection with the longitudinal slide rail, the slide block is connected with a lifting driving cylinder which is used for driving the slide block to slide up and down along the longitudinal slide rail, the lifting driving cylinder is fixed on the longitudinal slide rail, a horizontal plate is fixedly connected onto the slide block, a vertical driving arm is arranged on the horizontal plate, the driving arm is rotatably connected with the horizontal plate, the upper end of the driving arm is connected with a driving motor, the lower end of the driving arm is connected with a drill bit, and the driving motor is fixed onto the horizontal plate.

Through adopting above-mentioned technical scheme, rotatory elevating system is used for driving the drill bit and goes up and down and rotary motion to the realization is punched the processing to the brake block, goes up and down to drive actuating cylinder drive slider and slides from top to bottom along vertical slide rail, thereby drives the horizontal plate oscilaltion motion of fixing on the slider, drives actuating arm oscilaltion motion during the horizontal plate oscilaltion motion, drives drill bit oscilaltion motion during the actuating arm oscilaltion motion, driving motor is used for the actuating arm rotation and then drives the drill bit rotation, the drill bit is realized punching the processing to the brake block at oscilaltion and rotatory in-process.

The beneficial effects of the utility model are that:

1. the utility model discloses an arc of fixing base supports in the face of the brake block among the fixing device, the clamping device is carried on spacingly and presss from both sides tightly to the brake block "X" of the axial both sides of fixing base arcwall face for the brake block is fixed, recycle rotatory elevating system drive bit that changes and punch the operation to the brake block, solved existing equipment with the fixed comparatively difficult problem that punches of brake block, and the fixed position at every brake block of continuous production's in-process is unanimous, positioning accuracy is high, machining efficiency is high.

2. The utility model discloses well "X" clamping device passes through the two-way lead screw of driving motor drive rotation, thereby it is close to or keeps away from each other with slider two to drive the slider one of the screw thread spiro union of the different rotation direction in both ends of two-way lead screw, thereby it is close to or keeps away from to drive the lower extreme of connecting rod one and connecting rod two, the lower extreme of connecting rod one and connecting rod two is close to or keeps away from the upper end of driving connecting rod one and connecting rod two and keeps away from or be close to, the upper end when connecting rod one and connecting rod two is close to until the axial end face contact with the brake block when realizing carrying out axial positioning to the brake block, the compressing block one that connecting rod one and connecting rod two upper ends set up all removes until compressing tightly on the extrados of brake block to extrados one side of brake block simultaneously, thereby realize compressing tightly fixedly of brake block, need not manual operation, fixing process is simple, high efficiency.

3. The utility model discloses a set up the lug on the compact surface of compact heap one and compact heap two, utilize the lug to pass through regulating spring and be connected with the bottom of regulation hole, can adapt to compressing tightly of the brake block of different thickness, the commonality is better, and the lug is the arc from the one end that stretches out in the regulation hole, make the lug when moving along with compact heap one and compact heap two-way brake block, contact and compress tightly with the extrados of brake block more easily, and can not cause the damage to the surface of brake block in certain packing force, the equipment performance is better.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is the utility model relates to a brake block perforating device's overall structure schematic diagram.

Fig. 2 is a partially enlarged schematic view of a in fig. 1.

Fig. 3 is a schematic structural view of the X-shaped clamping device in the brake pad punching device of the present invention.

Fig. 4 is a schematic structural view of a rotary lifting mechanism in the punching device for brake pads of the present invention.

Fig. 5 is a schematic structural view of an automatic feeding device in the brake pad punching device of the present invention.

Fig. 6 is a schematic structural diagram of a brake pad which is punched by the brake pad punching device of the utility model.

Fig. 7 is a schematic view of a cross-sectional structure of a first clamping block and a second clamping block in the punching device for brake pads.

Fig. 8 is a schematic diagram of a state of the brake pad punching device before fixing the brake pad.

Fig. 9 is a schematic view of the brake pad punching device after fixing the brake pad.

In the figure, 1, a brake pad; 11. an intrados surface; 2. a fixing device; 21. a fixed seat; 22. an extension hole; 3. a punching device; 31. a drill bit; 4. a rotary lifting mechanism; 41. a longitudinal slide rail; 42. a slider; 43. a horizontal plate; 44. a drive arm; 45. a drilling drive motor; 46. a lifting driving cylinder; 5. an "X" shaped clamping device; 51. a first connecting rod; 511. a third connecting rod; 52. a second connecting rod; 521. a connecting rod IV; 53. a rotating shaft; 54. a first compression block; 55. a second compression block; 56. a first sliding block; 57. a second sliding block; 58. a bidirectional lead screw; 59. a drive motor; 6. an automatic feeding device; 61. a feeding seat; 62. a feeding driving mechanism; 621. a driving cylinder; 622. a drive plate; 63. an accommodating chamber; 64. a trough; 7. an adjustment hole; 8. a bump; 9. compressing the spring.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, a brake block perforating device, including being used for carrying out the fixing device 2 of fixing a position and being used for carrying out perforating 3 to brake block 1, fixing device 2 includes fixing base 21, the upper surface of fixing base 21 is the arcwall face, the arcwall face of fixing base 21 and the 11 phase-matches of interior cambered surface of brake block 1, perforating device 3 includes drill bit 31, the top at fixing base 21 is installed through rotatory elevating system 4 to drill bit 31, the axial both sides of fixing base 21 arcwall face all are equipped with and are used for fixing brake block 1 "X" clamping device 5 on the cambered surface of fixing base 21.

Specifically, as shown in fig. 3, the X-shaped clamping device 5 includes a first link 51 and a second link 52 crossing each other, the crossing part of the first connecting rod 51 and the second connecting rod 52 is rotationally connected through a rotating shaft 53, the upper ends of the first connecting rod 51 and the second connecting rod 52 are respectively provided with a first pressing block 54 and a second pressing block 55 which are used for fixing the brake pad 1 on the arc-shaped surface of the fixed seat 21, the lower ends of the first connecting rod 51 and the second connecting rod 52 are connected with the first sliding block 56 and the second sliding block 57, the first sliding block 56 and the second sliding block 57 are respectively screwed with two sections of threads with different rotation directions of the bidirectional screw 58, one end of the bidirectional screw 58 is fixedly connected with a driving motor 59, the lower ends of the first connecting rods 51 of the X-shaped clamping devices 5 on the two sides of the fixed seat 21 are connected with the first sliding blocks 56 through the third connecting rod 511, the lower ends of the second connecting rods 52 of the X-shaped clamping devices 5 on the two sides of the fixed seat 21 are connected with the second sliding blocks 57 through the fourth connecting rods 521.

Further, as shown in fig. 2, an extending hole 22 opposite to a position to be punched on the brake pad 1 is provided on the arc-shaped surface of the fixing seat 21, an automatic feeding device 6 is further provided on the other axial side of the arc-shaped surface of the fixing seat 21, the automatic feeding device 6 includes a feeding seat 61 for supporting the brake pad 1 to be punched and a feeding driving mechanism 62 for transferring the brake pad 1 on the feeding seat 61 to the fixing seat 21, the feeding driving mechanism 62 is located on one axial side of the arc-shaped surface of the feeding seat 61, the upper surface of the feeding seat 61 is an arc-shaped surface with the same height and the same diameter as the upper surface of the fixing seat 21, an accommodating cavity 63 formed by connecting four side plates is provided in the axial direction of the feeding seat 61, a through trough 64 is provided on the side plate of the accommodating cavity 63 opposite to the fixing seat 21, the trough 64 is matched with the cross-sectional shape of the brake pad 1, the bottom edge of the trough 64 is parallel to and equal in height with the upper surface of the feeding seat 61.

Specifically, as shown in fig. 5, the feeding driving mechanism 62 includes a driving cylinder 621 and a driving plate 622, the driving plate 622 is an arc-shaped plate having the same shape as the brake pad 1, one axial end of the driving plate 622 is fixedly connected to a telescopic shaft of the driving cylinder 621, the arc-shaped plate is matched with the cross-sectional shape of the brake pad 1, and the lower surface of the arc-shaped plate is parallel to and equal in height to the arc-shaped surface of the feeding seat 61.

Further, as shown in fig. 7, the pressing surfaces of the first pressing block 54 and the second pressing block 55 are both provided with an adjusting hole 7, a protruding block 8 is arranged in the adjusting hole 7, the protruding block 8 is slidably connected with the adjusting hole 7, the protruding block 8 is connected with the bottom of the adjusting hole 7 through a compression spring 9, and one end of the protruding block 8 extends out of the adjusting hole 7 in a natural state of the compression spring 9.

Further, the end of the projection 8 protruding from the adjusting hole 7 is arc-shaped.

Specifically, as shown in fig. 4, the rotary lifting mechanism 4 includes a longitudinal slide rail 41 and a slide block 42 slidably connected to the longitudinal slide rail 41, the slide block 42 is connected to a lifting driving cylinder 46 for driving the slide block 42 to slide up and down along the longitudinal slide rail 41, the lifting driving cylinder 46 is fixed to the longitudinal slide rail 41, a horizontal plate 43 is fixedly connected to the slide block 42, a vertical driving arm 44 is disposed on the horizontal plate 43, the driving arm 44 is rotatably connected to the horizontal plate 43, an upper end of the driving arm 44 is connected to a drilling driving motor 45, a lower end of the driving arm 44 is connected to the drill 31, and the drilling driving motor 45 is fixed to the horizontal plate 43.

The utility model discloses a theory of operation: stacking a plurality of brake pads 1 to be processed in the accommodating cavity 63, wherein the bottommost brake pad 1 is borne on the feeding seat 61, then starting the driving cylinder 621, the telescopic shaft of the driving cylinder 621 extends out, the driving cylinder 621 pushes the driving plate 622 to move axially, so that the bottommost brake pad borne on the feeding seat 61 is pushed to the arc-shaped surface of the fixed seat 21 through the trough 64, as shown in fig. 8, then starting the driving motor 59 to drive the bidirectional screw 58 to rotate, so as to drive the first slider 56 and the second slider 57 which are screwed with threads with different rotation directions at two ends of the bidirectional screw 58 to approach or separate from each other, so as to drive the lower ends of the first connecting rod 51 and the second connecting rod 52 to approach or separate from each other, when the lower ends of the first connecting rod 51 and the second connecting rod 52 approach or separate from each other, the upper ends of the first connecting rod 51 and the second connecting rod 52 approach each other until the upper ends of the first connecting rod 51 and the second connecting rod 52 contact with the axial end surface of the brake pads 1, so as to realize the axial positioning of the brake pads 1, simultaneously the compact heap 54 and the compact heap two 55 that the two 52 upper ends of connecting rod 51 and connecting rod set up all move until compressing tightly on the extrados of brake block 1 to extrados one side of brake block 1 to realize compressing tightly fixed of brake block 1, need not manual operation, fixed process is simple, high-efficient, as shown in fig. 9, then start rotatory elevating system 4, drive drill bit 31 through rotatory elevating system 4 and go up and down and rotary motion, thereby the realization is punched brake block 1 and is processed.

Claims

1. The utility model provides a brake block perforating device, is including being used for going on fixing device (2) of fixing a position and perforating device (3) that are used for punching brake block (1) to brake block (1), its characterized in that: fixing device (2) include fixing base (21), the upper surface of fixing base (21) is the arcwall face, the arcwall face of fixing base (21) and intrados (11) phase-match of brake block (1), perforating device (3) include drill bit (31), install the top at fixing base (21) through rotatory elevating system (4) drill bit (31), the axial both sides of fixing base (21) arcwall face all are equipped with and are used for fixing "X" clamping device (5) on the arc surface of fixing base (21) brake block (1).

2. The punching device for the brake pad of claim 1, wherein: the X-shaped clamping device (5) comprises a first connecting rod (51) and a second connecting rod (52) which are mutually crossed, the crossed part of the first connecting rod (51) and the second connecting rod (52) is rotatably connected through a rotating shaft (53), the upper ends of the first connecting rod (51) and the second connecting rod (52) are respectively provided with a first pressing block (54) and a second pressing block (55) which are used for fixing the brake pad (1) on the arc-shaped surface of the fixed seat (21), the lower ends of the first connecting rod (51) and the second connecting rod (52) are connected with a first sliding block (56) and a second sliding block (57), the first sliding block (56) and the second sliding block (57) are respectively in threaded connection with two sections of bidirectional screw rods (58) in different rotating directions, one end of the bidirectional screw rod (58) is fixedly connected with a driving motor (59), and the lower ends of the first connecting rod (51) of the X-shaped clamping device (5) on two sides of the fixed seat (21) are connected with the first sliding block (56) through a third connecting rod (511), the lower ends of the second connecting rods (52) of the X-shaped clamping devices (5) on the two sides of the fixed seat (21) are connected with the second sliding blocks (57) through the fourth connecting rods (521).

3. The brake pad perforating device of claim 2, wherein: the punching device is characterized in that an extending hole (22) opposite to a position to be punched on the brake pad (1) is formed in the arc-shaped surface of the fixing seat (21), an automatic feeding device (6) is further arranged on the other axial side of the arc-shaped surface of the fixing seat (21), the automatic feeding device (6) comprises a feeding seat (61) used for supporting the brake pad (1) to be punched and a feeding driving mechanism (62) used for transferring the brake pad (1) on the feeding seat (61) to the fixing seat (21), the feeding driving mechanism (62) is positioned on one axial side of the arc-shaped surface of the feeding seat (61), the upper surface of the feeding seat (61) is an arc-shaped surface which is equal to the upper surface of the fixing seat (21) in height and has the same diameter, an accommodating cavity (63) formed by connecting four side plates is axially arranged on the feeding seat (61), a through trough (64) is arranged on the side plate on one side of the accommodating cavity (63) opposite to the fixing seat (21), the cross-sectional shapes of the trough (64) and the brake pad (1) are matched, and the bottom edge of the trough (64) is parallel to the upper surface of the feeding seat (61) and is equal in height.

4. The punching device for the brake pad of claim 3, wherein: the feeding driving mechanism (62) comprises a driving cylinder (621) and a driving plate (622), the driving plate (622) is an arc-shaped plate with the same shape as the brake pad (1), one axial end of the driving plate (622) is fixedly connected with a telescopic shaft of the driving cylinder (621), the arc-shaped plate is matched with the cross section of the brake pad (1), and the lower surface of the arc-shaped plate is parallel to the arc surface of the feeding seat (61) and has the same height as the arc surface.

5. The punching device for the brake pad of claim 4, wherein: all be equipped with one regulation hole (7) on the compact surface of compact heap one (54) and compact heap two (55), be equipped with a lug (8) in regulation hole (7), lug (8) and regulation hole (7) sliding connection, lug (8) are connected through compression spring (9) with the bottom of adjusting hole (7), and the one end of lug (8) stretches out from adjusting hole (7) under compression spring (9) the natural state.

6. The punching device for the brake pad of claim 5, wherein: one end of the lug (8) extending out of the adjusting hole (7) is arc-shaped.

7. The punching device for the brake pad of claim 1, wherein: the rotary lifting mechanism (4) comprises a longitudinal slide rail (41) and a slide block (42) connected with the longitudinal slide rail (41) in a sliding mode, the slide block (42) is connected with a lifting driving cylinder (46) used for driving the slide block (42) to slide up and down along the longitudinal slide rail (41), the lifting driving cylinder (46) is fixed on the longitudinal slide rail (41), a horizontal plate (43) is fixedly connected onto the slide block (42), a vertical driving arm (44) is arranged on the horizontal plate (43), the driving arm (44) is rotatably connected with the horizontal plate (43), the upper end of the driving arm (44) is connected with a drilling driving motor (45), the lower end of the driving arm (44) is connected with a drill bit (31), and the drilling driving motor (45) is fixed on the horizontal plate (43).