CN115771184A - Punching device - Google Patents

Abstract

The utility model provides a perforating device for solve prior art's that mentions among the background art perforating device to seat or back, need beat the bar hole of similar mortise-tenon structure sometimes, seat and seat connect the installation through the bar hole of mortise-tenon structure, do not need to assemble through other parts with its own of the seat of mortise-tenon structure installation, and the seat of mortise-tenon structure is more durable, when above-mentioned patent punches, can not beat the technical problem in the bar hole that has mortise-tenon structure, include: workstation, support, drive assembly, slip subassembly and the subassembly that punches, support fixed mounting is at the workstation top, and open support bottom both sides has relative and vertical spout, and the drive assembly top is installed on the support, and the slip subassembly top is articulated with the drive assembly bottom, and the slip subassembly is located two spouts and can be in the spout vertical reciprocating sliding, and the drive assembly is used for driving the slip subassembly and slides, and the subassembly fixed mounting that punches is in the slip subassembly bottom.

Description

a punching device

technical field

The invention relates to the field of seat processing, in particular to a punching device.

Background technique

At present, wood, as the most basic raw material, is widely used in indoor furniture. Seats are an integral part of indoor furniture. Many seats are installed on the seats by opening mounting holes on the seat boards. Therefore, Seat plate punching is a particularly important part of whether the seat can be spliced.

The punching device of the prior art, such as the invention patent document with the authorized announcement number "CN109676702B" and the patent name "A Device for Punching and Grooving the Backboard of a Wooden Chair", discloses a punching device, which includes a base, a second 1 frame, pedal, first connecting rod, second connecting rod, guide rod, first spring, etc.; the top of the base is provided with the first frame, and the front side of the lower right side of the first frame is hingedly connected with the pedal, There is a first through hole on the right side of the first frame, and a first connecting rod is hinged at the right end of the pedal. The invention puts the backboard on the platform and starts the first electric drill and the second electric drill to step on the pedal. The downward swing of the left part makes the first electric drill and the second electric drill move downward, and then the backboard is punched and grooved.

The above-mentioned patent documents can punch holes in the backboard, but when punching the seat board or the backrest, sometimes it is necessary to punch a strip-shaped hole similar to the mortise and tenon structure, and the seat plate and the seat are connected through the strip-shaped hole in the mortise-and-tenon structure. Connection installation, the seat installed with the mortise and tenon structure itself does not need to be assembled by other parts, and the seat with the mortise and tenon structure is more durable. hole.

Contents of the invention

The object of the present invention is to address the deficiencies in the prior art, and propose a punching device, which is used to solve the problem that the punching device of the prior art mentioned in the background technology sometimes needs to punch similar The strip holes of the mortise and tenon structure, the seat plate and the seat are connected and installed through the strip holes of the mortise and tenon structure. The seat itself installed with the mortise and tenon structure does not need to be assembled by other parts, and the seat The chair is stronger and more durable. When the above-mentioned patent is punched, the technical problem that the bar-shaped hole with the mortise and tenon structure cannot be punched out.

Above-mentioned technical purpose of the present invention is achieved through the following technical solutions:

A punching device, comprising: a worktable, a bracket, a drive assembly, a sliding assembly and a punching assembly, the bracket is fixedly installed on the top of the workbench, and opposite and vertical slide grooves are opened on both sides of the bottom of the bracket. The top of the driving assembly is installed on the bracket, the top of the sliding assembly is hinged to the bottom of the driving assembly, the sliding assembly is arranged in two chute and can vertically reciprocate slide in the chute, the driving assembly is used to drive the sliding assembly to slide, The punching assembly is fixedly installed at the bottom of the sliding assembly, and is used for punching a wooden board placed on the workbench.

working principle:

First, the operator places the board to be punched horizontally on the workbench.

Then start the driving assembly, the driving assembly will drive the sliding assembly to slide down in the two chute, and then the sliding assembly will vertically move the punching assembly to the top of the board where the hole needs to be punched, and then the operator starts the punching assembly to punch the hole Components allow perforation of wood panels.

When the angle of punching needs to be changed, start the driving assembly, the driving assembly will drive the sliding assembly to slide upward in the two chute, then start the punching assembly again, the punching assembly can change the angle of punching, start the driving assembly again, The driving component will drive the sliding component to slide downwards in the two chute, and then the punching component will punch out strip holes similar to tenon-tenon structure on the wooden board, thus completing the punching operation with strip holes with different angles.

Compared with the prior art, the present invention has the following beneficial effects:

The punching unit can be used to punch holes at regular angles straight up and down. When it is necessary to punch a strip hole with a mortise and tenon structure or a certain inclined angle, it can be realized by changing the punching angle of the punching unit. The drilling operation of the unconventional angle, through the driving component to drive the sliding component to slide, and then the sliding component slides to drive the punching component to move up and down, so as to complete the drilling operation, the operation is simple and convenient.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Figure 2 is an enlarged schematic view of the structure at A in Figure 1;

Fig. 3 is the enlarged schematic view of the structure at B place in Fig. 1;

Fig. 4 is an enlarged cross-sectional schematic diagram of a protective bin structure according to an embodiment of the present invention;

Fig. 5 is an enlarged cross-sectional schematic view of the structure of the guide cylinder according to the embodiment of the present invention.

Explanation of reference signs: workbench 1, bracket 2, chute 3, first motor 4, first rack 5, second rack 6, first gear 7, protective bin 8, first fixed rod 9, first Connecting sleeve 10, second connecting sleeve 11, through hole 12, first sliding rod 13, first connecting rod 14, second connecting rod 15, second motor 16, transmission rod 17, bearing 18, third motor 19, the first Three connecting rods 20, the second gear 21, the second fixed rod 22, the connecting plate 23, the fourth motor 24, the drill bit 25, the installation cavity 26, the first double-head motor 27, the first rotating shaft 28, the second rotating shaft 29, the second One bevel gear 30, the 3rd bevel gear 31, the first screw rod 32, the second bevel gear 33, the 4th bevel gear 34, the second screw rod 35, the first sliding block 36, the second sliding block 37, the mounting plate 38, the second Two double-head motors 39, the 3rd screw rod 40, the 4th screw rod 41, the 3rd sliding block 42, the 4th sliding block 43, fixed block 44, cylinder 45, the 3rd rack 46, the 4th gear 47, the 3rd fixed rod 48 , the fourth connecting rod 49 , the clamping plate 50 , the fifth connecting rod 51 , the second sliding rod 52 , the guide cylinder 53 , and the third sliding rod 54 .

Detailed ways

The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example:

As shown in Figure 1, a punching device includes: a worktable 1, a bracket 2, a drive assembly, a sliding assembly and a punching assembly, the bracket 2 is fixedly installed on the top of the workbench 1, and the two sides of the bottom of the bracket 2 There are opposite and vertical chute 3, the top of the drive assembly is installed on the bracket 2, the top of the slide assembly is hinged to the bottom of the drive assembly, the slide assembly is set on two chute 3 and can be vertically mounted in the chute 3 Straight reciprocating sliding, the driving assembly is used to drive the sliding assembly to slide, the punching assembly is fixedly installed at the bottom of the sliding assembly, and is used to punch holes on the wooden board placed on the workbench 1 .

As shown in Figure 1 and Figure 4, the drive assembly includes a first motor 4, a first rack 5, a second rack 6, a first gear 7, a protective bin 8, a first fixed rod 9, a first connecting sleeve 10 and the second connection sleeve 11, the first motor 4 is fixedly installed on the top of the bracket 2 and its output end is vertically downward, the protective bin 8 is fixed at the bottom of the first motor 4, and the first gear 7 is located in the protective bin 8 and is horizontally arranged at the output end of the first motor 4, the first rack 5 and the second rack 6 are both slidably arranged in the protective compartment 8, the first rack 5 is opposite to the second rack 6 and Both are meshed with the first gear 7, and there are through holes 12 on the left and right sides of the protective bin 8, and the first rack 5 and the second rack 6 extend outward through the two through holes 12 in one-to-one correspondence. The first fixed rod 9 is horizontally and fixedly connected to the bracket 2 and is located below the protective bin 8, the top of the first connecting sleeve 10 is fixedly connected to the bottom of the first rack 5 and the first connecting sleeve 10 is sleeved on the first fixed On the rod 9, the top of the second connecting sleeve 11 is fixedly connected to the bottom of the second rack 6 and the second connecting sleeve 11 is sleeved on the first fixed rod 9, and the sliding assembly is hinged between the first connecting sleeve 10 and the second rack. On the two connecting sleeves 11.

As shown in Figure 1, the sliding assembly includes a first sliding rod 13, a first connecting rod 14 and a second connecting rod 15, the first sliding rod 13 is horizontally arranged between the brackets 2 and the two ends correspond to each other Sliding is arranged in two slide grooves 3, one end of the first connecting rod 14 is hinged with the first connecting sleeve 10 and the other end is hinged with the first sliding rod 13, and one end of the second connecting rod 15 is hinged with the second connecting sleeve 11 The other end is hinged to the first sliding rod 13 , and the punching assembly is fixedly connected to the first sliding rod 13 .

As shown in Figures 1 and 2, the punching assembly includes a second motor 16, a transmission rod 17 of a worm structure, a bearing 18, a third motor 19, a third connecting rod 20, a second gear 21, and a second fixed rod 22. Connecting plate 23, fourth motor 24 and drill bit 25, the second motor 16 is fixedly installed on the first sliding rod 13, the transmission rod 17 is horizontally arranged at the output end of the second motor 16 and penetrates to the bearing 18 At the center, the center of the bearing 18 is also pierced with the output shaft of the third motor 19, the third motor 19 is fixedly connected with the first slide bar 13, and the output shaft of the third motor 19 is fixed with a third connection Rod 20, the transmission rod 17 passes through the third connecting rod 20 and can rotate relative to the third connecting rod 20, the second gear 21 is rotatably connected to the third connecting rod 20 at the center of the shaft and is connected to the transmission rod 17 One end of the second fixed rod 22 is rotatably connected to the axis of the second gear 21 and the other end is fixedly connected to the connecting plate 23. The fourth motor 24 is fixedly installed on the connecting plate 23, and the fourth motor 24 outputs The end is provided with a drill bit 25, and the drill bit 25 is used to punch holes in the plank.

As shown in Fig. 1 and Fig. 2, all are fixedly installed with cylinder 45 on the two described fixed blocks 44, and two described fixed blocks 44 are slidably arranged on the workbench 1, and its telescoping end of two described air cylinders 45 is opposite and Two third tooth racks 46 opposite up and down are fixedly connected to the telescopic end, and the two third tooth racks 46 are engaged with two fourth gears 47 in one-to-one correspondence, and the four fourth gears 47 pass through pin shafts Rotationally connected on the two fixed blocks 44 corresponding to each other, the four fourth gears 47 are all fixedly connected with the third fixed rod 48, and the other end of the third fixed rod 48 is connected with the fourth fixed rod through the pin shaft rotation. Connecting rod 49, described fourth connecting rod 49 is connected with clamping plate 50 through pin shaft rotation, on described fixed block 44, is connected with two fifth connecting rods 51 through pin shaft rotation, two described fifth connecting rods 51 is rotatably connected to the two clamping plates 50 corresponding to each other through pin shafts.

Firstly, the plank to be punched is placed horizontally between the four clamping plates 50 on the workbench 1, and then the two cylinders 45 are activated, and the telescopic ends of the two cylinders 45 begin to retract, and then the telescopic ends of the two cylinders 45 Drive the one-to-one corresponding two third tooth racks 46, and the four third tooth racks 46 start to move toward the cylinder 45, and then the four third tooth racks 46 move to drive the one-to-one corresponding two fourth gears 47 to rotate. The rotation of the four gears 47 drives the four third fixed rods 48 corresponding to each other, and the four third fixed rods 48 begin to move to the plank, and then the rotation of the four fixed rods drives the four corresponding four fourth connecting rods 49 to move. The movement of the four fourth connecting rods 49 drives the one-to-one corresponding clamping plates 50 to approach each other until the plank is firmly clamped between the four clamping plates 50 .

Then start the fourth motor 24, the fourth motor 24 drives the drill bit 25 to rotate, then start the first motor 4, the first motor 4 drives the first gear 7 to rotate, and the first gear 7 drives the first rack 5 and the second rack on both sides. The rack 6 moves, the first rack 5 moves to drive the first connecting sleeve 10 to move along the first fixed rod 9, the second rack 6 moves to drive the second connecting sleeve 11 to move along the first fixed rod 9, Then the first connecting sleeve 10 moves to drive the first connecting rod 14 to rotate, and the second connecting sleeve 11 moves to drive the second connecting rod 15 to rotate, so that under the rotation of the second connecting rod 15 of the first connecting rod 14, the first sliding rod 13 starts to move downwards, and the first sliding rod 13 two ends slide vertically downwards in the chute 3, and gradually the drill bit 25 is moved to the top of the plank punching until the plank begins to be punched.

When it is necessary to punch out a bar-shaped hole with a mortise and tenon structure, start the second motor 16, the second motor 16 drives the transmission rod 17 to rotate, and the transmission rod 17 rotates to drive the second gear 21 to rotate left or right, and then the second The rotation of the gear 21 drives the second fixed rod 22 to rotate, the rotation of the second fixed rod 22 drives the rotation of the connecting plate 23, and the rotation of the connecting plate 23 drives the rotation of the fourth motor 24, thereby changing the left and right angles of the drill bit 25 and enlarging the drilling area. During the front and rear angles of the drill bit 25, start the third motor 19, the third motor 19 drives the third connecting rod 20 to rotate, the third connecting rod 20 rotates to drive the second gear 21 to rotate, and then the second gear 21 can be carried out on the transmission rod 17. Rotate, thereby changed the front and back angle of second gear 21, thereby second gear 21 drives second fixed rod 22 to rotate, and second fixed rod 22 drives connecting plate 23 to rotate, and connecting plate 23 rotates and drives fourth motor 24 to rotate, thus changes The front and rear angles of the drill bit 25 further expand the perforated area of the plank.

As shown in Figure 1, a second double-headed motor 39 is fixedly connected to the mounting plate 38, and two sets of output ends of the second double-headed motor 39 are respectively connected with a third screw 40 and a fourth screw 41. The third screw 40 is threaded with a third sliding block 42, the fourth screw 41 is threaded with a fourth sliding block 43, and the third sliding block 42 and the fourth sliding block 43 are fixedly installed with The fixing block 44 is provided with a clamping plate 50 on the fixing block 44 .

As shown in Figures 1 and 5, a horizontal second sliding rod 52 is fixedly connected to the third sliding block 42, and the second sliding rod 52 is passed through the guide cylinder 53, and the fourth sliding block 43 A horizontal third sliding rod 54 is fixedly connected to the top, and the third sliding rod 54 is passed through the guide cylinder 53. Both the second slide rod 52 and the third slide rod 54 can reciprocate in the guide cylinder 53. Swipe straight.

When needing to change the left and right positions of the plank, start the second double-head motor 39, the second double-head motor 39 drives the third screw rod 40 and the fourth screw rod 41 to rotate, and then the third screw rod 40 drives the third sliding block 42 to move, the second The four screw rods 41 drive the fourth sliding block 43 to move, and the second sliding bar 52 and the third sliding bar 54 can slide in the guide cylinder 53 when the third sliding block 42 moves and the fourth sliding block 43 moves, thereby controlling the two The movement of the block fixed block 44 controls the left and right movement of the plank by the clamping plate 50 that is located on the fixed block 44, which expands the perforated area, and the guide cylinder 53 can prevent the third sliding block 42 and the fourth sliding block 43 from moving. Torsion occurs, and this mechanical approach makes the local mechanical structure more stable.

As shown in Figure 1, an installation cavity 26 is opened on the top of the workbench 1, and a first double-head motor 27 is fixedly connected in the installation cavity 26, and two sets of output ends of the first double-head motor 27 are respectively connected to The first rotating shaft 28 and the second rotating shaft 29, the end of the first rotating shaft 28 away from the first double-headed motor 27 is connected with a first bevel gear 30, and the first screw rod 32 is rotated and arranged in the installation cavity 26, so that The end of the first screw 32 is fixed with a third bevel gear 31 meshing with the first bevel gear 30, and the end of the second rotating shaft 29 away from the first double-headed motor 27 is connected with a second bevel gear 33, The second screw rod 35 is rotated in the installation cavity 26, the end of the second screw rod 35 is fixed with the fourth bevel gear 34 meshing with the second bevel gear 33, the first screw rod 32 and the second bevel gear The axes of the two screw rods 35 are all perpendicular to the axis of the first rotating shaft 28. The first screw rod 32 is threaded with a first slide block 36, and the second screw rod 35 is threaded with a second slide block 37. A mounting plate 38 is fixed on the first sliding block 36 and the second sliding block 37 , and the drill bit 25 corresponds to the mounting plate 38 up and down.

When the front and rear positions of the plank need to be changed, the first double-headed motor 27 rotates to drive the first rotating shaft 28 and the second rotating shaft 29 to rotate, so that the connected first bevel gear 30 and the second bevel gear 33 are rotated to drive the first rotating shaft 28 and the second bevel gear 33 to be connected. The third bevel gear 31 and the fourth bevel gear 34 engaged by the bevel gear 30 and the second bevel gear 33 rotate, thereby making the first screw rod 32 and the second screw rod 35 rotate, and then the rotation of the first screw rod 32 and the second screw rod 35 drives The first sliding block 36 and the second sliding block 37 move, and the movement of the first sliding block 36 and the second sliding block 37 drives the mounting plate 38 to move, and the mounting plate 38 moves to drive the clamping block located on the mounting plate 38 to move, thereby Control the front and back movement of the board to further expand the punching area.

working principle:

First, the operator places the board to be punched horizontally between the four clamping plates 50 on the workbench 1, then starts the two air cylinders 45, and the telescopic ends of the two air cylinders 45 begin to retract, and then the two cylinders 45 start to retract. The telescopic end of the cylinder 45 drives the two third racks 46 corresponding to each other, and the four third racks 46 start to move toward the cylinder 45, and then the four third racks 46 move to drive the two fourth gears 47 corresponding to each other to rotate , the four fourth gears 47 rotate to drive the four third fixed rods 48 corresponding to each other, and the four third fixed rods 48 start to move to the plank, and then the four fixed rods rotate to drive the four fourth connected rods corresponding to each other. The rod 49 moves, and the movement of the four fourth connecting rods 49 drives the one-to-one corresponding clamping plates 50 to approach each other until the plank is firmly clamped between the four clamping plates 50 .

Then start the fourth motor 24, the fourth motor 24 drives the drill bit 25 to rotate, then start the first motor 4, the first motor 4 drives the first gear 7 to rotate, and the first gear 7 drives the first rack 5 and the second rack on both sides. The rack 6 moves, the first rack 5 moves to drive the first connecting sleeve 10 to move along the first fixed rod 9, the second rack 6 moves to drive the second connecting sleeve 11 to move along the first fixed rod 9, Then the first connecting sleeve 10 moves to drive the first connecting rod 14 to rotate, and the second connecting sleeve 11 moves to drive the second connecting rod 15 to rotate, so that under the rotation of the second connecting rod 15 of the first connecting rod 14, the first sliding rod 13 starts to move downwards, and the first sliding rod 13 two ends slide vertically downwards in the chute 3, and gradually the drill bit 25 is moved to the top of the plank punching until the plank begins to punch holes.

When the angle of punching needs to be changed, start the second motor 16, the second motor 16 drives the transmission rod 17 to rotate, and the rotation of the transmission rod 17 drives the second gear 21 to rotate left or right, and then the second gear 21 rotates to drive The second fixed rod 22 rotates, and the second fixed rod 22 rotates to drive the connecting plate 23 to rotate, and the connecting plate 23 rotates to drive the fourth motor 24 to rotate, thereby changing the left and right angles of the drill bit 25 and enlarging the perforated area. It is necessary to change the front and rear of the drill bit 25 During the angle, start the third motor 19, the third motor 19 drives the third connecting rod 20 to rotate, the third connecting rod 20 rotates to drive the second gear 21 to rotate, and then the second gear 21 can rotate on the transmission rod 17, thereby changing The front and rear angles of the second gear 21 are increased, so that the second gear 21 drives the second fixed rod 22 to rotate, the second fixed rod 22 drives the connecting plate 23 to rotate, and the connecting plate 23 rotates to drive the fourth motor 24 to rotate, thereby changing the front and rear of the drill bit 25 The angle further expands the perforated area of the board.

When needing to change the left and right positions of the plank, start the second double-head motor 39, the second double-head motor 39 drives the third screw rod 40 and the fourth screw rod 41 to rotate, and then the third screw rod 40 drives the third slide block 42 to move, and the fourth screw rod 40 drives the third screw rod 42 to move. The screw rod 41 drives the fourth sliding block 43 to move, and the second sliding rod 52 and the third sliding rod 54 can slide in the guide cylinder 53 when the third sliding block 42 and the fourth sliding block 43 move, thereby controlling the two sliding blocks. The movement of the fixed block 44 controls the left and right movement of the plank by the clamping plate 50 located on the fixed block 44, which expands the perforated area,

When the front and rear positions of the plank need to be changed, the first double-headed motor 27 rotates to drive the first rotating shaft 28 and the second rotating shaft 29 to rotate, so that the connected first bevel gear 30 and the second bevel gear 33 are rotated to drive the first rotating shaft 28 and the second bevel gear 33 to be connected. The third bevel gear 31 and the fourth bevel gear 34 engaged by the bevel gear 30 and the second bevel gear 33 rotate, thereby making the first screw rod 32 and the second screw rod 35 rotate, and then the rotation of the first screw rod 32 and the second screw rod 35 drives The first sliding block 36 and the second sliding block 37 move, and the movement of the first sliding block 36 and the second sliding block 37 drives the mounting plate 38 to move, and the mounting plate 38 moves to drive the clamping block located on the mounting plate 38 to move, thereby Control the front and back movement of the board to further expand the punching area.

After the punching is completed, close the two cylinders 45, the clamping plate 50 releases the clamping of the plank, and the operator will take away the completed plank from the clamping plate 50 to get final product.

Claims (8)

1. A punching device, characterized in that it comprises: a worktable (1), a support (2), a drive assembly, a sliding assembly and a punching assembly, and the support (2) is fixedly mounted on the top of the workbench (1) , the two sides of the bottom of the bracket (2) have opposite and vertical chute (3), the top of the drive assembly is mounted on the bracket (2), the top of the slide assembly is hinged to the bottom of the drive assembly, the slide assembly is set In the two chute (3) and can vertically reciprocate slide in the chute (3), the driving assembly is used to drive the sliding assembly to slide, the punching assembly is fixedly installed at the bottom of the sliding assembly, for The plank on the workbench (1) carries out punching. 2. A punching device according to claim 1, characterized in that: the drive assembly comprises a first motor (4), a first rack (5), a second rack (6), a first gear (7), protective bin (8), first fixed rod (9), first connecting sleeve (10) and second connecting sleeve (11), the first motor (4) is fixedly installed on the top of the bracket (2) Its output end is vertically downward, and the protection bin (8) is fixed on the bottom of the first motor (4), and the first gear (7) is located in the protection bin (8) and is horizontally arranged on the first motor (4) At the output end, both the first rack (5) and the second rack (6) are slidably arranged in the protective chamber (8), the first rack (5) is opposite to the second rack (6) and Both are meshed with the first gear (7), and there are through holes (12) on the left and right sides of the protective bin (8), and the first rack (5) and the second rack (6) correspond one-to-one Extending outward through two through holes (12), the first fixed rod (9) is horizontally and fixedly connected to the support (2) and located below the protective compartment (8), and the top of the first connecting sleeve (10) is fixed It is connected to the bottom of the first rack (5) and the first connecting sleeve (10) is sleeved on the first fixed rod (9), and the top of the second connecting sleeve (11) is fixedly connected to the second rack (6) The bottom and the second connecting sleeve (11) are sheathed on the first fixing rod (9), and the sliding assembly is hinged on the first connecting sleeve (10) and the second connecting sleeve (11). 3. A kind of punching device according to claim 2, characterized in that: said sliding assembly comprises a first sliding rod (13), a first connecting rod (14) and a second connecting rod (15), said The first sliding rod (13) is horizontally arranged between the brackets (2), and the two ends are respectively slid one by one in the two slide grooves (3). One end of the first connecting rod (14) is connected to the first connecting sleeve. (10) the other end of the hinge is hinged with the first sliding rod (13), one end of the second connecting rod (15) is hinged with the second connecting sleeve (11) and the other end is hinged with the first sliding rod (13), the The hole assembly is fixedly connected to the first sliding rod (13). 4. A kind of punching device according to claim 3, characterized in that: the punching assembly comprises a second motor (16), a transmission rod (17) of a worm structure, a bearing (18), a third motor ( 19), the third connecting rod (20), the second gear (21), the second fixed rod (22), the connecting plate (23), the fourth motor (24) and the drill bit (25), the second motor ( 16) Fixedly installed on the first sliding rod (13), the transmission rod (17) is horizontally arranged at the output end of the second motor (16) and penetrates to the center of the bearing (18), and the center of the bearing (18) The output shaft of the third motor (19) is also pierced at the place, and the third motor (19) is fixedly connected with the first sliding rod (13), and the output shaft of the third motor (19) is fixed with a third connection Rod (20), the transmission rod (17) passes through the third connecting rod (20) and can rotate relative to the third connecting rod (20), and the axis of the second gear (21) is rotatably connected to the third connecting rod (20). On the rod (20) and meshed with the transmission rod (17), one end of the second fixed rod (22) is rotatably connected to the axis of the second gear (21) and the other end is fixedly connected to the connecting plate (23). A fourth motor (24) is fixedly installed on the connecting plate (23), and the output end of the fourth motor (24) is provided with a drill bit (25), and the drill bit (25) is used to punch holes in the plank. 5. A punching device according to claim 4, characterized in that: an installation cavity (26) is opened on the top of the workbench (1), and a first double head is fixedly connected in the installation cavity (26). Motor (27), two sets of output ends of the first double-headed motor (27) are respectively connected with a first rotating shaft (28) and a second rotating shaft (29), and the first rotating shaft (28) is far away from the first One end of the double-headed motor (27) is connected with a first bevel gear (30), and the first screw rod (32) is rotated and installed in the installation cavity (26), and the end of the first screw rod (32) is fixed with the The third bevel gear (31) engaged with the first bevel gear (30), the second rotating shaft (29) is connected with a second bevel gear (33) at an end away from the first double-headed motor (27), so The second screw rod (35) is rotated in the installation cavity (26), and the end of the second screw rod (35) is fixed with a fourth bevel gear (34) meshing with the second bevel gear (33). The axes of the first screw (32) and the second screw (35) are perpendicular to the axis of the first rotating shaft (28), and the first screw (32) is threaded with a first sliding block (36) , the second screw rod (35) is threaded with a second sliding block (37), and the first sliding block (36) and the second sliding block (37) are fixed with a mounting plate (38), so Said drill bit (25) corresponds up and down with mounting plate (38). 6. A kind of punching device according to claim 5, characterized in that: a second double-head motor (39) is fixedly connected to the mounting plate (38), and the second double-head motor (39) Two groups of output ends are respectively connected with a third screw rod (40) and a fourth screw rod (41), the third screw rod (40) is threaded with a third sliding block (42), and the fourth screw rod (41) is A fourth sliding block (43) is threadedly connected, and a fixing block (44) is fixedly installed on the third sliding block (42) and the fourth sliding block (43). 7. A kind of punching device according to claim 6, characterized in that: cylinders (45) are fixedly installed on the two fixed blocks (44), and the telescopic ends of the two cylinders (45) are opposite to each other. And the telescoping end is fixedly connected with two 3rd tooth racks (46) that are up and down opposite, and two described 3rd tooth racks (46) are meshed with two 4th gears (47) respectively one by one, four described 3rd tooth racks (46) The fourth gear (47) is rotatably connected to two corresponding fixed blocks (44) through pin shafts, and the four fourth gears (47) are all fixedly connected with a third fixed rod (48). The other end of three fixed rods (48) is connected with the 4th connecting rod (49) by pin shaft rotation, and described 4th connecting rod (49) is connected with clamping plate (50) by pin shaft rotation, and described fixed block ( 44) are rotatably connected with two fifth connecting rods (51) through pin shafts, and the two fifth connecting rods (51) are rotatably connected to two corresponding clamping plates (50) through pin shafts. 8. A kind of punching device according to claim 6, characterized in that: the third sliding block (42) is fixedly connected with a horizontal second sliding rod (52), and the second sliding rod (52 ) is pierced in the guide cylinder (53), the fourth slide block (43) is fixedly connected with a horizontal third slide rod (54), and the third slide rod (54) is pierced in the guide cylinder (53 ), both the second sliding rod (52) and the third sliding rod (54) can reciprocate and linearly slide in the guide cylinder (53).

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