An automatic high-precision two-way punching and chamfering device

Abstract

The application discloses an automatic high-precision bidirectional punching and chamfering device, which comprises a rack and a feeding frame. The lower end of the rack is movably connected with a support in front and back. A clamp is arranged on the support. First, second, third and fourth punching and chamfering mechanisms are arranged on the front, back, left and right ends of the rack respectively. Punching and chamfering integrated cutters are arranged on the punching and chamfering mechanisms. The cutters of the first and second punching and chamfering mechanisms are arranged to be staggered with the cutters of the third and fourth punching and chamfering mechanisms by a position of a pair of avoiding holes. An installation table is arranged in the middle of the support. A clamp is arranged at the front end of the installation table. The clamp comprises a bottom plate, a side plate, a limiting plate and a pressing plate. The pressing plate is connected to the top of the bottom plate and the side plate in a lifting mode. An ejection mechanism is further arranged on the installation table. The feeding frame comprises a frame body, a conveying belt and a top-in mechanism. An output channel is further arranged on the frame body and is connected with the conveying belt. The application can efficiently and accurately punch multiple cross holes at equal distances on a workpiece, complete chamfering at the same time, realize automation of machining and automatic feeding and discharging.

Description

TECHNICAL FIELD

[0001] The application relates to an automatic high-precision bidirectional punching and chamfering device. BACKGROUND

[0002] At present, a batch of customized orders received by a factory has the specific requirement that two or more than two cross holes are punched on a cuboid wood block at equal distances, and the end of each hole needs to be chamfered;

[0003] Although the wood workpiece is not difficult to process, the wood workpiece can be prepared by using general punching equipment and chamfering equipment, but the batch of orders has the problems of large quantity, high punching precision requirement and long-term market demand for the workpiece, which causes certain disturbance to processing, and the problems are as follows:

[0004] The workpiece is processed by using general equipment, the hole requirement on the workpiece is a cross hole, and the punching and chamfering two processes need to be separately performed, on one hand, the processing efficiency is low, and on the other hand, the concentricity of the hole and the chamfer processed by separate processing has certain error, and the processing precision is difficult to guarantee; on the other hand, when the general equipment punches the cross hole at equal distances on the workpiece, the workpiece needs to be flipped for punching, and the intersection of the axial line of the horizontal through hole and the axial line of the vertical through hole in the cross hole is also prone to error, and the processing precision of the process is also difficult to guarantee. SUMMARY

[0005] The application aims at overcoming the defects of the prior art, and provides an automatic high-precision bidirectional punching and chamfering device, which is designed for the special requirement that multiple cross holes need to be punched at equal distances on a workpiece, and the end of each hole needs to be chamfered, and can realize automatic feeding, punching and chamfering processing and discharging of the workpiece, and has the advantages of high processing efficiency and high punching precision.

[0006] The technical scheme of the application is as follows: an automatic high-precision bidirectional punching and chamfering device, comprising a rack and a feeding frame, a support is movably connected to the front and rear of the lower end of the rack, a clamp is arranged on the support, a first punching and chamfering mechanism and a second punching and chamfering mechanism are respectively connected to the upper and lower ends of the front of the rack in a lifting manner, a third punching and chamfering mechanism and a fourth punching and chamfering mechanism are respectively connected to the left and right ends of the front of the rack in a moving manner, the cutters of the first punching and chamfering mechanism and the second punching and chamfering mechanism are coaxially arranged, the cutters of the third punching and chamfering mechanism and the fourth punching and chamfering mechanism are coaxially arranged, a punching drill bit is arranged at the front end of the cutter, and a chamfering cutter is arranged on the cutter behind the punching drill bit.

[0007] The bracket middle part is provided with a mounting table, the clamp includes a bottom plate, a side plate and a pressing plate, a plurality of position-avoiding holes corresponding to each tool are respectively arranged on the bottom plate, the side plate and the pressing plate, the bottom plate is fixed at the front end of the mounting table and the position-avoiding holes thereof are exposed on the top of the mounting table, the side plate is fixed on one side of the bottom plate, a blocking strip is further fixed on the mounting table away from the side plate, the spacing between the side plate and the blocking strip corresponds to the width of the workpiece, the pressing plate is connected to the top of the bottom plate and the side plate in a lifting manner, and the mounting table is further provided with a first driving mechanism for driving the pressing plate to lift;

[0008] The tools of the first and second punching and chamfering mechanisms are arranged at positions staggered with the tools of the third and fourth punching and chamfering mechanisms by one position-avoiding hole;

[0009] The mounting table at the rear end of the bottom plate is further fixed with a limiting plate, the limiting plate is provided with a through hole, a ejection block is connected to the through hole in an extending and retracting manner, and the ejection block is connected to a second driving mechanism for driving the ejection block to extend and retract through a first connecting rod;

[0010] The feeding frame includes a frame body, a conveying belt arranged on the top of the frame body, a guard plate fixed on the top of the frame body on both sides of the conveying belt and a top-in mechanism, the top of the frame body is flush with the top of the mounting table, the conveying belt is horizontally arranged in front of the frame, a plurality of cuboid workpieces are arranged on the conveying belt, the height of the guard plate is greater than the height of the workpieces, the conveying belt is further provided with an inverted "concave" blocking frame at one end close to the top-in mechanism, and the workpieces behind the blocking frame are double-layer workpieces;

[0011] The frame body is further provided with an output channel, the outlet of the output channel is arranged at a position corresponding to the clamp, the output end of the conveying belt is connected to the middle part of the output channel, and the top-in mechanism is arranged at the rear end of the output channel, the top-in mechanism includes a top-in block connected to the output channel in an extending and retracting manner, and the top-in block is connected to a third driving mechanism for driving the top-in block to extend and retract through a second connecting rod;

[0012] When the workpieces are fed to the clamp, the bracket is displaced forward so that the front end of the bottom plate is in abutment with the outlet of the output channel, the top-in block is extended to top the workpieces in the output channel into the clamp and make the rear end of the workpieces abut against the limiting plate, and the pressing plate is lowered to press the workpieces so that the workpieces are clamped in the clamp stably;

[0013] When the workpieces are punched, the first, second, third and fourth punching and chamfering mechanisms all punch half holes in the workpieces, and two corresponding half holes are connected to form a through hole with chamfers at both ends;

[0014] The third punching and chamfering mechanism and the fourth punching and chamfering mechanism process the first hole position of the workpiece while the first punching and chamfering mechanism and the second punching and chamfering mechanism process the second hole position of the workpiece.

[0015] After processing a workpiece, the pressing plate is lifted, the ejector block is retracted, the workpiece is ejected from the clamp, and the processed workpiece falls through the gap between the mounting table and the outlet of the output channel and is output.

[0016] Specifically, the mounting table is a flat cuboid mounting table.

[0017] Further, the front end inner side of the side plate and the stop bar is also provided with a chamfer.

[0018] Further, the bottom of the pressing plate is also provided with a convex strip corresponding to the stop bar.

[0019] Further, the first driving mechanism comprises a cylinder body fixed on the mounting table through a fixing frame, a rotating shaft connected to the cylinder body, and a motor box fixed on the mounting table, the rear end of the rotating shaft is fixed with a gear ring, the cylinder body has a notch corresponding to the gear ring, the motor box is provided with a reversible motor, the output shaft of the reversible motor is fixed with a transmission gear, the transmission gear is engaged with the gear ring, the front end of the rotating shaft is fixed with a plurality of connecting arms, and the ends of the connecting arms are connected between the positioning holes on the top of the pressing plate.

[0020] Specifically, the second driving mechanism and the third driving mechanism are both hydraulic cylinders.

[0021] Further, the positions of the first punching and chamfering mechanism, the second punching and chamfering mechanism, the third punching and chamfering mechanism, and the fourth punching and chamfering mechanism on the rack are respectively adjustable.

[0022] Further, a receiving hopper is fixed on the rack below the mounting table and the outlet of the output channel, and a discharge chute is connected below the receiving hopper.

[0023] Further, two support columns corresponding to the front end of the mounting table are arranged on the rack, the top of each of the two support columns is provided with a guide rail, the bottom of the front end of the mounting table is provided with a sliding block corresponding to the guide rail, and the sliding block is matched with the corresponding guide rail.

[0024] Further, the rack body and the rack are integrated, the rack body and the rack are covered with an outer shell, and a plurality of air blowing nozzles are arranged on the rack.

[0025] The present application has the advantages that the present application is designed for the special requirement of equidistantly punching multiple cross holes on a workpiece and chamfering the end of each hole, can realize automatic feeding, punching and chamfering of the workpiece, and has the advantages of reasonable layout, fast processing rhythm and high punching precision.

[0026] The feeding frame directly pushes the workpiece into the clamp, the clamp limits the workpiece in various directions through the bottom plate, the side plate, the pressing plate, the blocking strip, the limiting plate and the pressing plate, reliable clamping can ensure the accuracy of the position when the workpiece is pushed in, and ensure that there is no displacement during the punching and chamfering process, thereby ensuring the accuracy of the workpiece punching and chamfering;

[0027] The first, second, third and fourth punching and chamfering mechanisms cross work, cooperate with the displacement of the support, process the previous hole and the next hole at the same time, and the processing rhythm is fast and the efficiency is high; and each punching and chamfering mechanism punches a half hole when punching, cooperates with the drill and chamfer integrated tool, on the one hand, the chamfering process can be completed at the same time of punching, on the other hand, the accuracy of hole and chamfering process can be ensured, and finally the detection of workpiece punching accuracy during later quality inspection is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the structure schematic view of the front of the present application;

[0029] Figure 2 is the sectional view of the present application;

[0030] Figure 3 is the structure schematic view of the feeding frame in the present application;

[0031] Figure 4 is the structure schematic view of the clamp in the present application;

[0032] Figure 5 is the plan view of the clamp after the pressing plate is removed in the present application;

[0033] Figure 6 is the structure schematic view of the clamp after clamping the workpiece in the present application;

[0034] Figure 7 is the structure schematic view of the finished workpiece in the present application.

[0035] In the figure: rack 1, feeding frame 2, support 3, clamp 4, first punching and chamfering mechanism 5, second punching and chamfering mechanism 6, third punching and chamfering mechanism 7, fourth punching and chamfering mechanism 8, mounting table 9, bottom plate 10, side plate 11, pressing plate 12, avoiding hole 13, blocking strip 14, workpiece 15, limiting plate 16, ejector block 17, first connecting rod 18, guard plate 19, conveying belt 20, blocking frame 21, output channel 22, pushing block 23, second connecting rod 24, convex strip 25, fixing frame 26, cylinder 27, rotating shaft 28, motor box 29, connecting arm 30, support column 31. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be further specifically described below by examples and in combination with the drawings.

[0037] In combination Figures 1-7 As shown in the drawings, an automatic high-precision bidirectional punching and chamfering device comprises a rack 1 and a feeding rack 2, the lower end of the rack 1 is movably connected with a support 3, the support 3 is provided with a clamp 4, the upper and lower ends of the front face of the rack 1 are respectively connected with a first punching and chamfering mechanism 5 and a second punching and chamfering mechanism 6, the left and right ends of the front face of the rack 1 are respectively movably connected with a third punching and chamfering mechanism 7 and a fourth punching and chamfering mechanism 8, the cutters of the first punching and chamfering mechanism 5 and the second punching and chamfering mechanism 6 are coaxially arranged, the cutters of the third punching and chamfering mechanism 7 and the fourth punching and chamfering mechanism 8 are coaxially arranged, the front end of the cutter is provided with a punching drill bit, and the cutter behind the punching drill bit is provided with a chamfering cutter;

[0038] The support 3 is provided with an installation table 9 in the middle, the clamp 4 comprises a bottom plate 10, a side plate 11 and a pressing plate 12, the bottom plate 10, the side plate 11 and the pressing plate 12 are respectively provided with a plurality of avoidance holes 13 corresponding to each cutter, the bottom plate 10 is fixed at the front end of the installation table 9 and the avoidance holes 13 thereof are exposed on the top of the installation table 9, the side plate 11 is fixed on one side of the bottom plate 10, the installation table 9 away from the side plate 11 on the side of the bottom plate 10 is also fixedly provided with a blocking strip 14, the spacing between the side plate 11 and the blocking strip 14 corresponds to the width of a workpiece 15, the pressing plate 12 is movably connected above the bottom plate 10 and the side plate 11, and the installation table 9 is also provided with a first driving mechanism for driving the pressing plate 12 to move up and down;

[0039] The cutters of the first punching and chamfering mechanism 5 and the second punching and chamfering mechanism 6 are arranged to be staggered with the cutters of the third punching and chamfering mechanism 7 and the fourth punching and chamfering mechanism 8 by one pair of avoidance holes 13;

[0040] The installation table 9 at the rear end of the bottom plate 10 is also fixedly provided with a limiting plate 16, the limiting plate 16 is provided with a through hole, a top-out block 17 is movably connected in the through hole, and the top-out block 17 is connected with a second driving mechanism for driving the top-out block 17 to move up and down through a first connecting rod 18;

[0041] The feeding rack 2 comprises a rack body, a conveying belt 20 arranged on the top of the rack body, a guard plate 19 fixed on the top of the rack body on both sides of the conveying belt 20, and a top-in mechanism. The top of the rack body is flush with the top of the mounting table 9. The conveying belt 20 is arranged horizontally in front of the rack 1. A plurality of cuboid workpieces 15 are arranged on the conveying belt 20. The height of the guard plate 19 is greater than the height of the workpieces 15. A reversed "concave" shaped blocking rack 21 is arranged on one end of the conveying belt 20 close to the top-in mechanism. The workpieces 15 behind the blocking rack 21 are double-layer workpieces. When the lower layer workpieces 15 are output to a certain number, the workpieces 15 on the upper layer slide down to the conveying belt 20 to continue to be output, which not only increases the number of the workpieces 15 stored in the feeding rack 2, but also facilitates the mechanical arm or the operator to supplement the workpieces 15 to the feeding rack 2;

[0042] The rack body is further provided with an output channel 22. The outlet of the output channel 22 corresponds to the position of the clamp 4. The output end of the conveying belt 20 is connected with the middle part of the output channel 22. The top-in mechanism is arranged at the rear end of the output channel 22. The top-in mechanism comprises a top-in block 23 telescopically connected in the output channel 22. The top-in block 23 is connected with a third driving mechanism for driving the top-in block 23 to telescopically move through a second connecting rod 24.

[0043] When the workpieces 15 are conveyed to the clamp 4, the support 3 is displaced forward so that the front end of the bottom plate 10 is opposite to the outlet of the output channel 22. The top-in block 23 is extended to top the workpieces 15 in the output channel 22 into the space between the bottom plate 10, the side plate 11 and the blocking plate, and make the rear end of the workpieces 15 abut against the limiting plate 16. Then, the pressing plate 12 is lowered to press the workpieces 15, so that the workpieces 15 are firmly clamped in the clamp 4.

[0044] When the workpieces 15 are punched, the support 3 is reset. The first punching and chamfering mechanism 5 is lifted once to punch a half hole in the first hole position of the workpiece 15. Then, the second punching and chamfering mechanism 6 is lifted once to punch another half hole in the first hole position of the workpiece 15, so that the two half holes in the first hole position are connected to form a vertical through hole, and the chamfers at both ends of the vertical through hole are completed. After the first hole position is punched and chamfered, the support 3 is displaced backward by one hole position. The first punching and chamfering mechanism 5 and the second punching and chamfering mechanism 6 repeat the above-mentioned actions to punch the second hole position of the workpiece 15.

[0045] When the first punching and chamfering mechanism 5 and the second punching and chamfering mechanism 6 process the second hole position, the third punching and chamfering mechanism 7 is displaced left and right once to punch a half hole in the first hole position of the workpiece 15. Then, the fourth punching and chamfering mechanism 8 is displaced left and right once to punch another half hole in the first hole position of the workpiece 15, so that the two half holes in the first hole position are connected to form a horizontal through hole, and the chamfers at both ends of the horizontal through hole are completed. The axis of the horizontal through hole intersects with the axis of the vertical through hole to form a cross shape. Thus, the first hole position of the workpiece 15 is processed.

[0046] The first, second, third and fourth punching and chamfering mechanisms 5, 6, 7 and 8 repeatedly perform the above-mentioned action in cooperation with the displacement of the support 3 until the machining of each hole position of the workpiece 15 is completed. After the machining is completed, the pressing plate 12 is raised, the ejector block 17 is extended and retracted once to eject the workpiece 15 from the clamp 4. The machined workpiece 15 falls through the gap between the installation table 9 and the outlet of the output channel 22 to the discharge chute and is output.

[0047] It should be noted that the present application is generally applicable to the punching and chamfering of wooden workpieces 15.

[0048] The present application is designed for the special requirement of equidistantly punching multiple cross holes in the workpiece 15 and chamfering the end of each hole. It can realize automatic feeding, punching and chamfering of the workpiece 15 and discharging, and has the advantages of reasonable layout, fast processing rhythm and high punching precision.

[0049] The feeding rack 2 directly ejects the workpiece 15 into the clamp 4. The clamp 4 limits the workpiece 15 in all directions through the bottom plate 10, side plate 11, pressing plate 12, stop bar 14, limiting plate 16 and pressing plate 12. The clamping is reliable, which can ensure the accuracy of the position of the workpiece 15 when it is ejected and prevent displacement during punching and chamfering, thereby ensuring the accuracy of punching and chamfering of the workpiece 15.

[0050] The first, second, third and fourth punching and chamfering mechanisms 5, 6, 7 and 8 perform cross operation in cooperation with the displacement of the support 3, and simultaneously machine the previous and subsequent hole positions. The processing rhythm is fast and the efficiency is high. Each punching and chamfering mechanism punches a half hole when punching. The integrated drill and chamfer tool can complete chamfering while punching, which can ensure the accuracy of hole and chamfering machining and facilitate the detection of punching accuracy of the workpiece 15 during later quality inspection.

[0051] Specifically, as shown in Figure 2 and Figure 4 , the installation table 9 is a flat rectangular installation table.

[0052] In another embodiment, as shown in Figure 5 and Figure 6 , the front end inner side of the side plate 11 and the stop bar 14 is also provided with a chamfer to facilitate the entry of the workpiece 15 between the side plate 11 and the stop bar 14.

[0053] In another embodiment, as shown in Figure 6 , the bottom of the pressing plate 12 is also provided with a protrusion 25 corresponding to the stop bar 14 to further limit the clamped workpiece 15.

[0054] In another embodiment, as shown in Figure 1 , Figure 2 and Figure 4 , the first driving mechanism comprises a cylinder 27 fixed on the mounting table 9 by a fixing frame 26, a rotating shaft 28 rotatably connected to the cylinder 27, and a motor box 29 fixed on the mounting table 9, the rear end of the rotating shaft 28 is fixed with a gear ring, the cylinder 27 has a notch corresponding to the gear ring, the motor box 29 is provided with a forward and reverse motor, the output shaft of the forward and reverse motor is fixed with a transmission gear, the transmission gear is engaged with the gear ring, the front end of the rotating shaft 28 is fixed with a plurality of connecting arms 30, the ends of each connecting arm 30 are respectively connected between each position hole 13 on the top of the pressing plate 12; the rotating shaft 28 rotates to drive the connecting arm 30 to rotate, the connecting arm 30 drives the pressing plate 12 to swing up and down, thereby realizing the lifting and pressing of the pressing plate 12.

[0055] Specifically, the second driving mechanism and the third driving mechanism are both hydraulic cylinders.

[0056] In another embodiment, as shown in Figure 1 and Figure 2 , the positions of the first punching and chamfering mechanism 5, the second punching and chamfering mechanism 6, the third punching and chamfering mechanism 7, and the fourth punching and chamfering mechanism 8 on the rack 1 are respectively adjustable.

[0057] In another embodiment, a receiving hopper is fixed on the rack 1 below the outlet between the mounting table 9 and the outlet of the output channel 22, and a discharge chute is connected below the receiving hopper to collect the workpieces 15 pushed out by the ejection block 17 and guide the workpieces 15 out.

[0058] In another embodiment, as shown in Figure 2 , the rack 1 is further provided with two support columns 31 corresponding to the front end of the mounting table 9, the top of each support column 31 is provided with a guide rail, the bottom of the front end of the mounting table 9 is provided with a sliding block corresponding to the guide rail, and the sliding block is matched with the corresponding guide rail.

[0059] Specifically, the rack body and the rack 1 are connected as a whole, the rack body and the rack 1 are covered with an outer shell, and the rack 1 is further provided with a plurality of blowing nozzles to blow off the debris generated during the punching and chamfering of the workpieces 15.

Claims

1. An automatic high-precision two-way punching and chamfering device, comprising a rack (1) and a feeding rack (2), characterized in that, The lower end of the frame (1) is movably connected with a support (3), the support (3) is provided with a clamp (4), the upper and lower ends of the front face of the frame (1) are respectively movably connected with a first punching and chamfering mechanism (5) and a second punching and chamfering mechanism (6), the left and right ends of the front face of the frame (1) are respectively movably connected with a third punching and chamfering mechanism (7) and a fourth punching and chamfering mechanism (8), the cutters of the first punching and chamfering mechanism (5) and the second punching and chamfering mechanism (6) are coaxially arranged, the cutters of the third punching and chamfering mechanism (7) and the fourth punching and chamfering mechanism (8) are coaxially arranged, the front end of the cutter is provided with a punching drill bit, and a chamfering cutter is arranged behind the punching drill bit; A mounting table (9) is arranged in the middle of the support (3), the clamp (4) comprises a bottom plate (10), a side plate (11) and a pressing plate (12), a plurality of position-avoiding holes (13) corresponding to the cutters are respectively arranged on the bottom plate (10), the side plate (11) and the pressing plate (12), the bottom plate (10) is fixed at the front end of the mounting table (9) and the position-avoiding holes (13) thereof are exposed on the top of the mounting table (9), the side plate (11) is fixed on one side of the bottom plate (10), a blocking strip (14) is further fixed on the mounting table (9) away from the side plate (11) on the side of the bottom plate (10) away from the side plate (11), the spacing between the side plate (11) and the blocking strip (14) corresponds to the width of the workpiece (15), the pressing plate (12) is movably connected above the bottom plate (10) and the side plate (11), and a first driving mechanism for driving the pressing plate (12) to move up and down is further arranged on the mounting table (9); The cutters of the first punching and chamfering mechanism (5) and the second punching and chamfering mechanism (6) are arranged to be staggered with the cutters of the third punching and chamfering mechanism (7) and the fourth punching and chamfering mechanism (8) by one position-avoiding hole (13); A limiting plate (16) is further fixed on the mounting table (9) at the rear end of the bottom plate (10), the limiting plate (16) has a through hole, a jacking block (17) is telescopically connected in the through hole, and the jacking block (17) is connected with a second driving mechanism for driving the jacking block (17) to move telescopically through a first connecting rod (18); The feeding frame (2) comprises a frame body, a conveying belt (20) arranged on the top of the frame body, a guard plate (19) fixed on the top of the frame body on both sides of the conveying belt (20) and a top-in mechanism, the top of the frame body is flush with the top of the mounting table (9), the conveying belt (20) is horizontally arranged in front of the frame (1), a plurality of cuboid workpieces (15) are arranged on the conveying belt (20), the height of the guard plate (19) is greater than the height of the workpiece (15), a blocking frame (21) in the shape of an inverted "n" is further arranged on one end of the conveying belt (20) close to the top-in mechanism, and the workpieces (15) behind the blocking frame (21) are double-layer workpieces; The frame body is also provided with an output channel (22), an outlet of the output channel (22) is arranged corresponding to the position of the clamp (4), an output end of the conveying belt (20) is communicated with the middle part of the output channel (22), the top-in mechanism is arranged at the rear end of the output channel (22), and the top-in mechanism comprises a top-in block (23) which is connected in the output channel (22) in an extendable manner, the top-in block (23) is connected with a third driving mechanism which drives the top-in block (23) to extend and retract through a second connecting rod (24). When the workpiece (15) is conveyed to the clamp (4), the support (3) is displaced forward so that the front end of the bottom plate (10) is in abutment with the outlet of the output channel (22), the top-in block (23) extends out to top in the workpiece (15) in the output channel (22) into the clamp (4) and make the rear end of the workpiece (15) abut against the limiting plate (16), and the pressing plate (12) is lowered to press the workpiece (15) so that the workpiece (15) is firmly clamped in the clamp (4). When the workpiece (15) is punched, the first punching and chamfering mechanism (5), the second punching and chamfering mechanism (6), the third punching and chamfering mechanism (7) and the fourth punching and chamfering mechanism (8) punch half holes on the workpiece (15), and two corresponding half holes are communicated to form a through hole with chamfers at two ends. When the first punching and chamfering mechanism (5) and the second punching and chamfering mechanism (6) process the second hole position of the workpiece (15), the third punching and chamfering mechanism (7) and the fourth punching and chamfering mechanism (8) process the first hole position of the workpiece (15). After processing a workpiece, the pressing plate (12) is lifted, the ejector block (17) is extended once to eject the workpiece (15) from the clamp (4), and the processed workpiece (15) falls from the gap between the mounting table (9) and the outlet of the output channel (22) and is output.

2. The automatic high-precision two-way punching and chamfering device according to claim 1, characterized in that, The mounting table (9) is a flat cuboid mounting table.

3. The automatic high-precision two-way punching and chamfering device according to claim 2, characterized in that, The front end of the side plate (11) and the front end of the blocking strip (14) are also provided with chamfers.

4. The automatic high-precision two-way punching and chamfering device according to claim 3, characterized in that, The bottom of the pressing plate (12) is also provided with a convex strip (25) corresponding to the blocking strip (14).

5. The automatic high-precision two-way punching and chamfering device according to claim 4, characterized in that, The first driving mechanism comprises a cylinder (27) fixed on the mounting table (9) through a fixing frame (26), a rotating shaft (28) rotatably connected to the cylinder (27), and a motor box (29) fixed on the mounting table (9), the rear end of the rotating shaft (28) is fixed with a gear ring, the cylinder (27) has a notch corresponding to the gear ring, the motor box (29) is provided with a reversible motor, the output shaft of the reversible motor is fixed with a transmission gear, the transmission gear is engaged with the gear ring, the front end of the rotating shaft (28) is fixed with a plurality of connecting arms (30), and the ends of the connecting arms (30) are respectively connected between each of the avoiding holes (13) on the top of the pressing plate (12).

6. The automatic high-precision two-way punching and chamfering device according to claim 5, characterized in that, The second driving mechanism and the third driving mechanism are both hydraulic cylinders.

7. The automatic high-precision two-way punching and chamfering device according to claim 6, characterized in that, The positions of the first punching and chamfering mechanism (5), the second punching and chamfering mechanism (6), the third punching and chamfering mechanism (7) and the fourth punching and chamfering mechanism (8) on the rack (1) are respectively adjustable.

8. The automatic high-precision two-way punching and chamfering device according to claim 7, characterized in that, The installation platform (9) and the lower part between the outlet of the output channel (22) and the frame (1) are fixed with a receiving hopper, and the lower part of the receiving hopper is connected with a discharging chute.

9. The automatic high-precision two-way punching and chamfering device according to claim 8, characterized in that, The frame (1) is also provided with two support columns (31) corresponding to the front end of the installation platform (9), the top of the two support columns (31) is respectively provided with a guide rail, the bottom of the front end of the installation platform (9) is provided with a sliding block corresponding to the guide rail, and the sliding block is matched with the corresponding guide rail.

10. The automatic high-precision two-way punching and chamfering device according to claim 9, characterized in that, The frame body and the frame (1) are connected as a whole, the frame body and the frame (1) are covered with an outer shell, and the frame (1) is also provided with a plurality of blowing nozzles.

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