CN115383475A

CN115383475A - Drum piece drilling equipment of stopping with adjustable can accurate location

Info

Publication number: CN115383475A
Application number: CN202210996631.8A
Authority: CN
Inventors: 杜孟子; 李国兵; 吴丽霞
Original assignee: Huangshan Feiying Auto Parts Co ltd
Current assignee: Huangshan Feiying Auto Parts Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-11-25

Abstract

The invention discloses an adjustable drum brake sheet drilling device capable of being accurately positioned. The invention drives one end of the first connecting rod to rotate around the output shaft of the reciprocating motor through the rotation of the output shaft of the reciprocating motor, thereby driving one end of the second connecting rod to rotate around the other end of the first connecting rod, and then driving the pushing block to do reciprocating linear motion on the sliding rail through the rotating shaft; realized can guarantee stably when drilling, promote the quality in the hole of drilling to setting up through the sliding sleeve changes the distance that promotes the piece and move to the elevating platform of contradicting, thereby changes the time interval that promotes the piece and contradict the elevating platform, thereby reaches the effect of the interval between the hole when adjusting drilling, and whole process need not extra power supply, when the energy saving, has simplified the operation, has reduced staff's the operation degree of difficulty and device cost.

Description

Drum piece drilling equipment of stopping with adjustable can accurate location

Technical Field

The invention relates to the technical field of drum brake sheet drilling equipment, in particular to an adjustable drum brake sheet drilling device capable of being accurately positioned.

Background

After the new national standard of the brake pad is implemented, a rivet hole for installing a thickness abrasion alarm sensor is added. The drum brake is composed of a rotary part, a fixed part, an actuating part and a positioning and adjusting device. It is composed of brake bottom plate, brake cylinder, brake shoe, spring, pin and brake drum. The existing drum brake pad needs to be drilled on the surface during production.

Because the drum that the car of equidimension used stops the piece size and also varies to the drum stops the interval that the piece size differs and leads to drilling and differs, usually to the drum of unified size stops the piece among the prior art and drill, can not adapt to the equidistance of the drum of various sizes and interval adjustable drilling work, and satisfy the drilling equipment of multi-row hole or S type, the operation is complicated, and is costly.

Disclosure of Invention

The technical scheme of the invention aims at solving the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and particularly aims to provide a drilling device capable of accurately positioning an adjustable drum brake sheet so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a piece drilling equipment is stopped to drum with adjustable can accurate location, includes the conveyer belt and the piece is stopped to the drum, still includes centre gripping subassembly, runner assembly, drilling subassembly, reciprocal subassembly, adjusting part, brace table, material loading cylinder and safety cover, the workstation sets up the one end at the conveyer belt, the material loading cylinder is provided with two, two the material loading cylinder sets up the bottom at the workstation, the centre gripping subassembly sets up the top at the brace table, the runner assembly sets up the top at the centre gripping subassembly, the fixed one side that sets up at the runner assembly of drilling subassembly, reciprocal subassembly sets up the one end at the drilling subassembly, the adjusting part sets up the middle part at the drilling subassembly, the safety cover is established on the runner assembly, the piece setting is stopped to the drum is between centre gripping subassembly and drilling subassembly.

Preferably, the centre gripping subassembly includes rolling disc, centre gripping motor, arc wall, spacing post, sliding plate, grip block, cross limiting plate and centre gripping electric putter, the centre gripping motor sets up directly over the workstation, the rolling disc sets up the output shaft tip at the centre gripping motor, the arc wall is provided with four, and four the arc wall is seted up on the rolling disc, the cross limiting plate rotates and sets up on the rolling disc, the cross sliding tray has been seted up in the cross limiting plate, the sliding plate is provided with four, four the sliding plate slides respectively and sets up in the cross sliding tray, spacing post is provided with four, four the spacing post sets up respectively in four sliding plate bottoms, centre gripping electric putter is provided with two, and two centre gripping electric putter sets up in one side of drum piece of stopping, the grip block is provided with four, four the grip block sets up respectively at the tip of two centre gripping electric putter output shaft tips and wherein two sliding plates.

Preferably, the runner assembly is including rotating motor, half gear, first gear, L type connecting block, dwang, rotation post, second gear, first rack, second rack, L type stock and mount table, the rotation post rotates and sets up in the inside of guard shield, the fixed top that sets up at the rotation post of first gear, the fixed middle part that sets up at the rotation post of second gear, the fixed middle part that sets up at the rotation post of dwang, L type stock slides and sets up the bottom at the dwang, first rack sets up the tip at L type stock, second rack slides and sets up in the inside of guard shield, L type connecting block sets up the top at the second rack, the rotation motor sets up the top at L type connecting block, the second gear sets up the output shaft tip at the rotation motor, the fixed one end that sets up at the dwang of mount table, the bottom of L type stock is the telescopic link.

Preferably, the drilling assembly comprises a drill rod, a drilling electric push rod, a drilling motor and a lifting platform, the lifting platform is arranged on the mounting platform, the drilling electric push rod is arranged on the lifting platform, the drilling motor is arranged at the end part of an output shaft of the drilling electric push rod, and the drill rod is arranged at the end part of the output shaft of the drilling motor.

Preferably, reciprocal subassembly includes reciprocating motor, head rod, second connecting rod, L type mounting panel, promotes piece, pivot and sliding sleeve, the sliding sleeve is established on a lateral wall of mount table, L type mounting panel sets up the lateral wall at the sliding sleeve, reciprocating motor sets up the one side at L type mounting panel, the one end of head rod is rotated and is set up at reciprocating motor output shaft tip, the one end of second connecting rod is rotated and is set up the other end at the head rod, the pivot sets up the other end at the second connecting rod, it sets up in the pivot to promote the piece, be provided with on the mount table and supply to promote the gliding slide rail of piece.

Preferably, the regulating assembly includes regulating spring, stripper plate and regulation post, regulating spring is provided with two, two regulating spring's one end sets up the both sides wall at drilling motor respectively, the stripper plate is provided with two, two the stripper plate sets up at the regulating spring pad other end, the stripper plate is provided with two, two the stripper plate is provided with regulating spring's the other end respectively, the both sides wall of mount table all is provided with three adjustment tank, the regulation post is equipped with two, two the regulation post sets up the lateral wall at two stripper plates respectively.

Preferably, the side wall of the mounting table is provided with a scale.

Preferably, the top of sliding sleeve top and mount table one side all is provided with a plurality of screw holes, slip table top spiro union has fixing bolt.

Compared with the prior art, the invention has the beneficial effects that:

(1) The invention drives one end of the first connecting rod to rotate around the output shaft of the reciprocating motor through the rotation of the output shaft of the reciprocating motor, thereby driving one end of the second connecting rod to rotate around the other end of the first connecting rod, and then driving the pushing block to do reciprocating linear motion on the sliding rail through the rotating shaft; the stability can be guaranteed during drilling, the quality of drilled holes is improved, the distance from the pushing block to the lifting table in a collision mode is changed through the arrangement of the sliding sleeve, the time interval of the pushing block in collision with the lifting table is changed, the effect of adjusting the distance between the holes during drilling is achieved, an additional power source is not needed in the whole process, energy is saved, operation is simplified, and the operation difficulty and the device cost of workers are reduced;

(2) The rotating plate is driven to rotate by rotating the output shaft of the motor, the rotating plate drives the limiting posts in the arc-shaped grooves to move, the limiting posts drive the sliding plates to slide in the cross limiting plate, so that the clamping blocks at the end parts of the two sliding plates are driven to butt against the inner wall of the drum brake sheet, the output shaft of the electric push rod is synchronously clamped to extend out, and the clamping blocks at the end parts of the output shaft are driven to clamp the outer wall of the drum brake sheet; the drum brake pieces with different sizes can be clamped in a self-adaptive manner while being stably clamped;

(3) According to the invention, the output shaft of the drilling electric push rod extends out to drive the drilling motor and the drill rod to extend out, and simultaneously the output shaft of the drilling motor rotates to drive the drill rod to rotate, so that the drum brake sheet is drilled, and when the output shaft of the drilling electric push rod extends out, the L-shaped long rod is synchronously driven to slide towards the direction of the protective cover, the L-shaped long rod slides to drive the first rack connected with the L-shaped long rod to slide, the first rack slides to drive the second gear to rotate, the second gear rotates to drive the second rack engaged with the second gear to move towards the direction of the rotating motor, and the second rack moves towards the direction of the rotating motor to drive the L-shaped connecting block, the rotating motor and the half gear to synchronously move, so that the half gear is disengaged from the first gear; therefore, the rotating rod stops rotating, the next drilling operation is convenient to carry out, manual interference is not needed, and the operation is simple and convenient;

(4) According to the invention, the extrusion plates on two sides are synchronously extruded by workers, so that the adjusting spring is compressed, the adjusting column is separated from the adjusting groove, the drill rod can move up and down due to the telescopic structure arranged at the end part of the L-shaped long rod, and when the adjusting rod is adjusted to a proper position, the extrusion on the extrusion plates can be loosened, so that the extrusion plates are driven to reset under the elastic force of the adjusting spring, and the adjusting column is clamped in the adjusting groove again; the height adjustment of the drill rod is realized, the drill rod can drill at different heights by arranging the adjusting spring and the L-shaped long rod, the requirements of different drilling positions of drum brake sheets with various sizes are met, the applicability is stronger, and the operation is simple and convenient.

Drawings

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

FIG. 2 is a bottom view of the clamping assembly of the present invention;

FIG. 3 is a top view of the clamping assembly of the present invention;

FIG. 4 is a perspective view of the rotating assembly of the present invention;

FIG. 5 is a perspective view of the drilling assembly of the present invention;

fig. 6 is a perspective view of the reciprocating assembly of the present invention.

In the figure: 1. a conveyor belt; 2. a drum brake sheet; 3. a clamping assembly; 31. rotating the disc; 32. a clamping motor; 33. an arc-shaped slot; 34. a limiting column; 35. a sliding plate; 36. a clamping block; 37. a cross limiting plate; 38. clamping the electric push rod; 4. a rotating assembly; 41. rotating the motor; 42. a half gear; 43. a first gear; 44. an L-shaped connecting block; 45. rotating the rod; 46. rotating the column; 47. a second gear; 48. a first rack; 49. a second rack; 410. an L-shaped long rod; 411. an installation table; 5. a drilling assembly; 51. a drill stem; 52. drilling an electric push rod; 53. a drilling motor; 54. a lifting platform; 6. a reciprocating assembly; 61. a reciprocating motor; 62. a first connecting rod; 63. a second connecting rod; 64. a pushing block; 65. a rotating shaft; 66. a sliding sleeve; 67. an L-shaped mounting plate; 7. an adjustment assembly; 71. adjusting the spring; 72. a compression plate; 73. an adjustment column; 8. a support table; 9. a feeding cylinder; 10. a protective cover; 11. and (5) fixing the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-6, an embodiment of the present invention is shown: the utility model provides a piece drilling equipment is stopped to drum with adjustable can accurate location, includes that conveyer belt 1 and drum stop piece 2, still includes centre gripping subassembly 3, runner assembly 4, drilling subassembly 5, reciprocal subassembly 6, adjusting part 7, brace table 8, material loading cylinder 9 and safety cover 10, the workstation sets up the one end at conveyer belt 1, material loading cylinder 9 is provided with two, two material loading cylinder 9 sets up the bottom at the workstation, centre gripping subassembly 3 sets up the top at brace table 8, runner assembly 4 sets up the top at centre gripping subassembly 3, drilling subassembly 5 is fixed to be established in one side of runner assembly 4, reciprocal subassembly 6 sets up the one end at drilling subassembly 5, adjusting part 7 sets up the middle part at drilling subassembly 5, the safety cover 10 cover is established on runner assembly 4, drum stop piece 2 sets up between centre gripping subassembly 3 and drilling subassembly 5. At first, the piece 2 is stopped to the drum that will treat the drilling is put on conveyer belt 1, conveyer belt 1 is carried the drum and is stopped piece 2 to the workstation, then 9 output shafts of material loading cylinder with workstation jack-up to clamping component 3 department, then clamping component 3 work, it is fixed to stop piece 2 to carry out the centre gripping to the drum, rotating component 4 drives drilling component 5 and carries out the equidistance rotation after the centre gripping finishes, synchronous drilling component 5 stops piece 2 to the drum and drills, and can adjust the position of drilling according to adjusting part 7, the interval size of drilling can also be adjusted through the removal of reciprocating part 6, thereby make the device can adapt to the drilling of the piece 2 of stopping of various drum of size, and can drill out the not hole of equidistance co-altitude of different intervals.

Specifically, the clamping assembly 3 includes a rotating disc 31, a clamping motor 32, an arc-shaped groove 33, four limiting columns 34, a sliding plate 35, clamping blocks 36, a cross limiting plate 37 and clamping electric push rods 38, the clamping motor 32 is disposed right above the workbench, the rotating disc 31 is disposed at an output shaft end of the clamping motor 32, the arc-shaped groove 33 is provided with four arc-shaped grooves 33, the arc-shaped groove 33 is opened on the rotating disc 31, the cross limiting plate 37 is rotatably disposed on the rotating disc 31, a cross sliding groove is formed in the cross limiting plate 37, the sliding plate 35 is provided with four sliding plates 35, the sliding plates 35 are respectively slidably disposed in the cross sliding groove, the four limiting columns 34 are respectively disposed at bottoms of the four sliding plates 35, the clamping electric push rods 38 are provided with two clamping electric push rods 38, and the two clamping electric push rods 38 are disposed on one side of the drum brake sheet 2, the clamping blocks 36 are provided with four clamping blocks 36, and the four clamping blocks 36 are respectively disposed at output shaft ends of the two clamping electric push rods 38 and at ends of the two sliding plates 35. The output shaft of the rotating motor 41 drives the rotating disc 31 to rotate, the rotating disc 31 rotates to drive the limiting columns 34 in the arc-shaped grooves 33 to move, the limiting columns 34 drive the sliding plates 35 to slide in the cross limiting plates 37, so that the clamping blocks 36 at the end parts of the two sliding plates 35 are driven to abut against the inner wall of the drum brake sheet 2, the output shaft of the synchronous clamping electric push rod 38 extends out, and the clamping blocks 36 at the end parts of the output shaft are driven to clamp the outer wall of the drum brake sheet 2; can also carry out the self-adaptation centre gripping to the drum of equidimension piece 2 of stopping when stopping piece 2 to the drum and carrying out stable centre gripping.

Specifically, rotating assembly 4 is including rotating motor 41, half gear 42, first gear 43, L type connecting block 44, dwang 45, rotation post 46, second gear 47, first rack 48, second rack 49, L type long pole 410 and mount table 411, rotation post 46 rotates and sets up in the inside of guard shield 10, first gear 43 is fixed to be set up at the top of rotation post 46, the fixed middle part that sets up at rotation post 46 of second gear 47, the fixed middle part that sets up at rotation post 46 of dwang 45, L type long pole 410 slides and sets up the bottom at dwang 45, first rack 48 sets up the tip at L type long pole 410, second rack 49 slides and sets up the inside at guard shield 10, L type connecting block 44 sets up the top at second rack 49, it sets up the top at L type connecting block 44 to rotate motor 41, second gear 47 sets up the output shaft end portion at rotation motor 41, the fixed one end that sets up at 45 of mount table 411, the bottom of L type long pole 410 is the telescopic link. The output shaft of the rotating motor 41 rotates to drive the half gear 42 to rotate, the half gear 42 rotates to drive the first gear 43 meshed with the half gear to rotate, the first gear 43 rotates to drive the rotating rod 45 and the L-shaped long rod 410 to rotate, and the rotating rod 45 rotates to drive the mounting table 411 to synchronously rotate, so that components on the mounting table 411 are driven to perform angle adjustment.

Specifically, the drilling assembly 5 comprises a drill rod 51, a drilling electric push rod 52, a drilling motor 53 and a lifting table 54, wherein the lifting table 54 is arranged on the mounting table 411, the drilling electric push rod 52 is arranged on the lifting table 54, the drilling motor 53 is arranged at the end part of an output shaft of the drilling electric push rod 52, and the drill rod 51 is arranged at the end part of the output shaft of the drilling motor 53. The output shaft of the drilling electric push rod 52 extends out to drive the drilling motor 53 and the drill rod 51 to extend out, meanwhile, the output shaft of the drilling motor 53 rotates to drive the drill rod 51 to rotate, so that the drum brake sheet 2 is drilled, in addition, when the output shaft of the drilling electric push rod 52 extends out, the L-shaped long rod 410 is synchronously driven to slide towards the direction of the protective cover 10 by the arrangement of the L-shaped long rod 410, the L-shaped long rod 410 slides to drive the first rack 48 connected with the L-shaped long rod to slide, the first rack 48 slides to drive the second gear 47 to rotate, the second gear 47 rotates to drive the second rack 49 meshed with the second gear to move towards the direction of the rotating motor 41, the second rack 49 moves towards the direction of the rotating motor 41 to drive the L-shaped connecting block 44, the rotating motor 41 and the half gear 42 to synchronously move, and the half gear 42 is separated from the meshing with the first gear 43; thereby dwang 45 stall is convenient for carry out drilling operation on next step, need not artificial interference, and easy operation is convenient.

Specifically, reciprocal subassembly 6 includes reciprocating motor 61, head rod 62, second connecting rod 63, L type mounting panel 67, promotes piece 64, pivot 65 and sliding sleeve 66, sliding sleeve 66 slip cap is established on a lateral wall of mount table 411, L type mounting panel 67 sets up the lateral wall at sliding sleeve 66, reciprocating motor 61 sets up the one side at L type mounting panel 67, the one end of head rod 62 is rotated and is set up at reciprocating motor 61 output shaft tip, the one end of second connecting rod 63 is rotated and is set up the other end at head rod 62, pivot 65 sets up the other end at second connecting rod 63, it sets up in pivot 65 to promote piece 64, be provided with the confession on the mount table 411 and promote the gliding slide rail of piece 64. The output shaft of the reciprocating motor 61 rotates to drive one end of the first connecting rod 62 to rotate around the output shaft of the reciprocating motor 61, so as to drive one end of the second connecting rod 63 to rotate around the other end of the first connecting rod 62, and then the rotating shaft 65 drives the pushing block 64 to do reciprocating linear motion on the sliding rail; realized can guarantee stably when drilling, promote the quality in the hole of drilling to setting up through sliding sleeve 66 changes and promotes the piece 64 and move to the distance of contradicting elevating platform 54, thereby changes the time interval who promotes the piece 64 and contradict elevating platform 54, thereby reaches the effect of the interval between the hole when adjusting drilling, and whole process need not extra power supply, when the energy saving, has simplified the operation, has reduced staff's the operation degree of difficulty.

Specifically, adjusting part 7 includes regulating spring 71, stripper plate 72 and regulation post 73, regulating spring 71 is provided with two, two regulating spring 71's one end sets up the both sides wall at drilling motor 53 respectively, stripper plate 72 is provided with two, two stripper plate 72 sets up the other end at regulating spring 71 pad, stripper plate 72 is provided with two, two stripper plate 72 is provided with regulating spring 71's the other end respectively, the both sides wall of mount table 411 all is provided with three regulation groove, regulation post 73 is equipped with two, two regulation post 73 sets up the lateral wall at two stripper plates 72 respectively. The extrusion plates 72 on the two sides are synchronously extruded by workers, so that the adjusting springs 71 are compressed, the adjusting columns 73 are separated from the adjusting grooves, the drill rod 51 can move up and down due to the fact that the end portions of the L-shaped long rods 410 are of telescopic structures, when the adjusting rods are adjusted to proper positions, extrusion on the extrusion plates 72 can be loosened, the extrusion plates 72 are driven to reset under the elastic force action of the adjusting springs 71, and the adjusting columns 73 are clamped in the adjusting grooves again; the height adjustment of the drill rod 51 is realized, the drill rod 51 can drill at different heights by the arrangement of the adjusting spring 71 and the L-shaped long rod 410, the requirements of different drilling positions of the drum brake pieces 2 with various sizes are met, the applicability is stronger, and the operation is simple and convenient.

Specifically, the side wall of the mounting table 411 is provided with scales. The scale of the position of the sliding sleeve 66 when the distance between different holes needs to be drilled can be easily obtained through calculation.

Specifically, the top of sliding sleeve 66 and the top of mount table 411 one side all are provided with a plurality of screw holes, the spiro union of slip table top has fixing bolt 11. Fix sliding sleeve 66 in the threaded hole through fixing bolt 11, prevent that sliding sleeve 66 from rocking when reciprocating motor 61 works and influencing drilling operation.

The working principle is as follows: firstly, the drum brake sheet 2 to be drilled is placed on the conveyor belt 1, the conveyor belt 1 conveys the drum brake sheet 2 to a workbench, then the output shaft of the feeding cylinder 9 jacks up the workbench to the position of the clamping electric push rod 38, then the clamp drives the rotating disc 31 to rotate through the output shaft of the rotating motor 41, the rotating disc 31 rotates to drive the limiting post 34 in the arc-shaped groove 33 to move, the limiting post 34 drives the sliding plate 35 to slide in the cross limiting plate 37, so as to drive the clamping blocks 36 at the end parts of the two sliding plates 35 to abut against the inner wall of the drum brake sheet 2, the output shaft of the synchronous clamping electric push rod 38 extends out, the clamping block 36 at the end part of the output shaft is driven to clamp the outer wall of the drum brake sheet 2, after clamping is finished, the output shaft of the rotating motor 41 rotates to drive the half gear 42 to rotate, the half gear 42 rotates to drive the first gear 43 engaged with the first gear to rotate, the first gear 43 rotates to drive the rotating rod 45 and the rotating rod 410 to rotate, the rotating table 411 rotates to drive the rotating rod 45 and the rotating rod 410 to rotate, thereby drive the installation table 411 to rotate, the second gear 52, the rack 52 which drives the output shaft 62 to rotate, and the second gear 52, the second rack 52 which rotates to rotate, and the second rack 52 which drives the output shaft 52, the second rack 52 which rotates to rotate, and the second rack 52, and the rack 52 which drives the rack 52 which rotates to rotate, and the rack 52, the rack 52 which drives the rack which rotates to move, and the rack 52, and the rack which rotates to move, and the rack which moves to move, the rack 52, the second rack 49 moves towards the direction of the rotating motor 41 to drive the L-shaped connecting block 44, the rotating motor 41 and the half gear 42 to synchronously move, so that the half gear 42 is disengaged from the first gear 43, the installation table 411 of the drill rod 51 is kept stable during drilling, the distance from the pushing block 64 to the lifting table 54 is changed through the arrangement of the sliding sleeve 66, the time interval of the pushing block 64 to the lifting table 54 is changed, the effect of adjusting the space between holes during drilling is achieved, then the squeezing plates 72 on two sides can be synchronously squeezed by a worker, the adjusting spring 71 is compressed, the adjusting column 73 is disengaged from the adjusting groove, and the end part of the L-shaped long rod 410 is of a telescopic structure, so that the drill rod 51 can move up and down, when the drill rod is adjusted to a proper position, the squeezing plates 72 can be loosened, the squeezing plates 72 can be driven by the elastic force of the adjusting spring 71 to reset the squeezing plates 72, the adjusting column 73 is clamped in the adjusting groove again, and the device can adapt to the drilling of the drum pieces 2 with various sizes, and can drill holes with different spaces and different heights.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a piece drilling equipment is stopped to drum with adjustable can accurate location, includes conveyer belt (1) and drum piece (2), its characterized in that of stopping: still include centre gripping subassembly (3), rotating assembly (4), drilling subassembly (5), reciprocal subassembly (6), adjusting part (7), brace table (8), material loading jar (9) and safety cover (10), the workstation sets up the one end in conveyer belt (1), material loading jar (9) are provided with two, two material loading jar (9) set up the bottom at the workstation, centre gripping subassembly (3) set up the top at brace table (8), rotating part (4) set up the top at centre gripping subassembly (3), drilling subassembly (5) are fixed to be established and are set up the one side in rotating part (4), reciprocal subassembly (6) set up the one end in drilling subassembly (5), adjusting part (7) set up the middle part in drilling subassembly (5), safety cover (10) cover is established on rotating part (4), the piece (2) of stopping of drum set up between centre gripping subassembly (3) and drilling subassembly (5).

2. The drum brake sheet drilling device capable of being accurately positioned and adjusted according to claim 1, is characterized in that: the clamping component (3) comprises a rotating disc (31), a clamping motor (32), arc-shaped grooves (33), limiting columns (34), sliding plates (35), clamping blocks (36), a cross limiting plate (37) and clamping electric push rods (38), wherein the clamping motor (32) is arranged right above the workbench, the rotating disc (31) is arranged at the end part of an output shaft of the clamping motor (32), the arc-shaped grooves (33) are four in number and four in number, the arc-shaped grooves (33) are arranged on the rotating disc (31), the cross limiting plate (37) is rotatably arranged on the rotating disc (31), the cross sliding grooves are arranged in the cross limiting plate (37), the sliding plates (35) are provided with four sliding plates (35) which are respectively slidably arranged in the cross sliding grooves, the limiting columns (34) are provided with four in number and four in number, the limiting columns (34) are respectively arranged at the bottoms of the four sliding plates (35), the clamping electric push rods (38) are provided with two in number, and the clamping electric push rods (38) are arranged at one side of the drum sheet (2), and the clamping blocks (36) are respectively arranged at the end parts of the two sliding plates (35) and the clamping electric push rods (36).

3. The drum brake sheet drilling device capable of being accurately positioned and adjusted according to claim 1, is characterized in that: the rotating assembly (4) comprises a rotating motor (41), a half gear (42), a first gear (43), an L-shaped connecting block (44), a rotating rod (45), a rotating column (46), a second gear (47), a first rack (48), a second rack (49), an L-shaped long rod (410) and a mounting table (411), the rotating column (46) is rotatably arranged inside the protective cover (10), the first gear (43) is fixedly arranged at the top of the rotating column (46), the second gear (47) is fixedly arranged in the middle of the rotating column (46), the rotating rod (45) is fixedly arranged in the middle of the rotating column (46), the L-shaped long rod (410) is arranged at the bottom of the rotating rod (45) in a sliding way, the first rack (48) is arranged at the end part of the L-shaped long rod (410), the second rack (49) is arranged inside the protective cover (10) in a sliding way, the L-shaped connecting block (44) is arranged on the top of the second rack (49), the rotating motor (41) is arranged above the L-shaped connecting block (44), the second gear (47) is arranged at the end part of the output shaft of the rotating motor (41), the mounting table (411) is fixedly arranged at one end of the rotating rod (45), and the bottom of the L-shaped long rod (410) is a telescopic rod.

4. The drum brake sheet drilling device capable of being accurately positioned and adjusted according to claim 2, is characterized in that: the drilling assembly (5) comprises a drill rod (51), a drilling electric push rod (52), a drilling motor (53) and a lifting platform (54), wherein the lifting platform (54) is arranged on an installation platform (411), the drilling electric push rod (52) is arranged on the lifting platform (54), the drilling motor (53) is arranged at the end part of an output shaft of the drilling electric push rod (52), and the drill rod (51) is arranged at the end part of the output shaft of the drilling motor (53).

5. The drum brake sheet drilling device capable of being accurately positioned and adjusted according to claim 1, is characterized in that: reciprocating assembly (6) include reciprocating motor (61), head rod (62), second connecting rod (63), L type mounting panel (67), promote piece (64), pivot (65) and sliding sleeve (66), sliding sleeve (66) slip cover is established on a lateral wall of mount table (411), L type mounting panel (67) set up the lateral wall in sliding sleeve (66), reciprocating motor (61) set up the one side in L type mounting panel (67), the one end of head rod (62) is rotated and is set up at reciprocating motor (61) output shaft tip, the one end of second connecting rod (63) is rotated and is set up the other end in head rod (62), pivot (65) set up the other end in second connecting rod (63), it sets up on pivot (65) to promote piece (64), be provided with on mount table (411) and supply to promote the gliding slide rail of piece (64).

6. The drum brake sheet drilling device capable of being accurately positioned and adjusted according to claim 5, is characterized in that: adjusting part (7) are including adjusting spring (71), stripper plate (72) and regulation post (73), adjusting spring (71) is provided with two, two the one end of adjusting spring (71) sets up the both sides wall at drilling motor (53) respectively, stripper plate (72) are provided with two, two stripper plate (72) set up and fill up the other end at adjusting spring (71), stripper plate (72) are provided with two, two stripper plate (72) are provided with the other end of adjusting spring (71) respectively, the both sides wall of mount table (411) all is provided with three adjustment tank, it is equipped with two, two to adjust post (73) sets up the lateral wall at two stripper plate (72) respectively.

7. The drum brake sheet drilling device capable of being accurately positioned and adjusted according to claim 5, characterized in that: the side wall of the mounting table (411) is provided with scales.

8. The drum brake sheet drilling device capable of being accurately positioned and adjusted according to claim 5, is characterized in that: the top of sliding sleeve (66) top and mount table (411) one side all is provided with a plurality of screw holes, slip table top spiro union has fixing bolt (11).