Pole cutting die with high-precision feeding function and method

Abstract

The invention discloses a pole cutting die and method with a high-precision feeding function, and relates to the technical field of cutting off an annular shoulder of a pole, the pole cutting die comprises an upper die and a lower die, the lower die comprises a base, a lower base plate and a female die plate which are fixedly connected into a whole from bottom to top in sequence, and a female die insert is fixedly arranged in the female die plate; the lower die further comprises a horizontal air cylinder and a vertical plate which are fixedly arranged on the left outer end face and the right outer end face of the female die plate respectively, a piston rod of the horizontal air cylinder extends rightwards, a left push strip located on the left side of the circular hole is fixedly arranged at the extending end, and a V-shaped block making contact with the top surface of the female die plate is fixedly arranged at the right end of the left push strip. The left end of the horizontal fixing rod is sleeved with a right push strip, and a horizontal spring arranged outside the horizontal fixing rod in a sleeving mode is fixedly arranged between the right end face of the right push strip and the left end face of the vertical plate. The feeding device has the beneficial effects that feeding of the pole columns can be accurately completed, and the pole column cutting efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting off the annular shoulder of a terminal post, in particular to a die and method for cutting a terminal post with a high-precision feeding function. Background Art

[0002] The structure of a certain terminal post 1 is as Figures 1 to 3 shown. It includes a cylindrical table 2, a circular copper plate 3, and a circular aluminum plate 4 that are fixedly connected to each other in sequence from top to bottom. The cylindrical table 2, the circular copper plate 3, and the circular aluminum plate 4 are coaxially arranged. The diameter of the circular copper plate 3 is 20.4 mm, and the diameter of the circular aluminum plate 4 is 20.0 mm. The diameter difference between the two is only 0.4 mm. The width of the annular shoulder formed between the circular copper plate 3 and the circular aluminum plate 4 is only 0.2 mm. Technologically, it is required to cut off the annular shoulders of each terminal post 1 so that the diameter of the circular copper plate 3 becomes 20.0 - 20.02 mm, and then the required products can be produced.

[0003] The principle of cutting off the annular shoulder of the terminal post 1 is as follows: S1. Select a female die insert 5 as Figure 4 shown. The diameter of the circular hole 6 of the female die insert 5 is 20.02 mm; S2. Take out a terminal post 1, embed the circular aluminum plate 4 of the terminal post 1 into the circular hole 6 of the female die insert 5, and ensure that the annular shoulder of the terminal post 1 is supported on the top surface of the female die insert 5 to complete the feeding of the terminal post 1, as Figure 5 shown; S3. Press the top surface of the circular copper plate 3 of the terminal post 1 through a hollow punch 7, as Figure 6 shown. Under the pressure, the edge of the hole opening of the circular hole 6 cuts the annular shoulder of the terminal post 1, so that the circular copper plate 3 with a diameter of 20.4 mm is cut into 20 - 20.02 mm, and then the required products can be produced. Among them, the obtained products fall from the circular hole 6, and the cut-off annular shoulders remain on the top surface of the female die insert 5; S4. Workers repeat the operations of steps S1 - S3 many times, and then the annular shoulders of the terminal post 1 can be continuously cut off, and then multiple products can be correspondingly produced.

[0004] Among them, in step S2, since the gap between the outer wall of the circular aluminum plate 4 and the inner wall of the circular hole 6 is only 0.01 mm, which is quite small. Therefore, the intermittent handling manipulator of the existing technology cannot accurately embed the circular aluminum plate 4 of the terminal post 1 into the circular hole 6 [because there is a large error in the grasping stroke of the intermittent handling manipulator], and thus cannot support the annular shoulder of the terminal post 1 on the top surface of the female die insert 5. Subsequently, the annular shoulder of the terminal post 1 cannot be cut, and thus the required products cannot be produced.

[0005] To solve the above problems, the worker can only manually insert the circular aluminum plate 4 of the terminal post 1 into the circular hole 6 of the concave die insert 5, and then use the hollow punch 7 to press the top surface of the circular copper plate 3 to produce the required product. However, the manual feeding speed is slow, the labor cost is high, and continuous cutting of the terminal post 1 cannot be achieved, resulting in the technical defect of low efficiency in cutting the terminal post 1.

[0006] Therefore, there is an urgent need for a mold and method that can accurately complete the feeding of the terminal post and greatly improve the efficiency of cutting the terminal post. Summary of the Invention

[0007] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a mold and method for cutting a terminal post with a high-precision feeding function that can accurately complete the feeding of the terminal post and greatly improve the efficiency of cutting the terminal post.

[0008] The purpose of the present invention is achieved through the following technical solutions: A mold for cutting a terminal post with a high-precision feeding function, which includes an upper mold and a lower mold. The lower mold includes a base, a lower backing plate, and a concave template fixedly connected together in sequence from bottom to top. A concave die insert is fixedly arranged in the concave template, and a circular hole penetrating its bottom surface and a small hole located behind the circular hole are provided in the concave die insert; A blind groove is provided on the top surface of the base. A first vertical spring is fixedly arranged at the bottom of the blind groove. The top end of the first vertical spring is connected to a floating plate. A ejector rod that penetrates the lower backing plate upward and extends into the circular hole is fixedly arranged on the top surface of the floating plate. The vertical distance between the top surface of the ejector rod and the top surface of the concave die insert is 0.5 mm. A floating rod is also fixedly arranged on the top surface of the floating plate. The floating rod penetrates the lower backing plate upward and extends into the small hole; A stop bar arranged longitudinally from front to back is fixedly arranged on the top surface of the concave template. A longitudinal cylinder arranged longitudinally is fixedly arranged on the front end surface of the concave template. The piston rod of the longitudinal cylinder extends backward, and a front push block in contact with the stop bar is fixedly connected to the extending end. The front push block is located in front of the circular hole. A feeding guide rail is also fixedly arranged on the top surface of the concave template and is opposite to the front push block left and right. The end port of the feeding guide rail is located on the left side of the front push block. The starting port of the feeding guide rail extends to the outside of the concave template to the left; The lower mold further includes a horizontal cylinder and a vertical plate respectively fixedly arranged on the left and right outer end surfaces of the concave template. The piston rod of the horizontal cylinder extends to the right, and a left push bar located on the left side of the circular hole is fixedly arranged at the extending end. A V-shaped block in contact with the top surface of the concave template is fixedly arranged at the right end of the left push bar; A horizontal fixing rod is fixedly arranged in the vertical plate. A right push bar is sleeved on the left end of the horizontal fixing rod. A horizontal spring sleeved on the outside of the horizontal fixing rod is fixedly arranged between the right end surface of the right push bar and the left end surface of the vertical plate; The left end surface of the right push bar is located above the circular hole to block the right edge of the circular hole. A wedge-shaped groove is also provided on the top surface of the right push bar.

[0009] The lower die further includes a discharge chute opened between the lower backing plate and the base. The upper port of the discharge chute is communicated with the circular hole of the die insert, and the lower port of the discharge chute penetrates through the right end face of the base.

[0010] A rectangular support block is fixedly arranged on the front end face of the die plate, and the cylinder block of the longitudinal cylinder is fixedly arranged on the top surface of the rectangular support block.

[0011] An installation plate is fixedly arranged on the left end face of the die plate, the cylinder block of the horizontal cylinder is fixedly arranged on the left end face of the installation plate, and the piston rod of the horizontal cylinder penetrates through the installation plate to the right.

[0012] The diameter of the circular hole of the die insert is 20.02 mm.

[0013] A plurality of pole columns to be cut are sequentially arranged in the feeding guide rail, and the foremost pole column is blocked by the front pushing block.

[0014] The upper die includes an upper bolster, a connecting plate and an upper backing plate fixedly connected together in sequence from top to bottom. A stripper plate is further arranged directly below the upper backing plate. A plurality of second vertical springs are fixedly arranged between the stripper plate and the upper backing plate. A transverse groove penetrating through its left and right end faces is fixedly arranged on the bottom surface of the stripper plate, and a longitudinal groove communicated with the transverse groove is opened on the front end face of the stripper plate; A hollow punch is fixedly arranged on the bottom surface of the upper bolster and sequentially penetrates through the connecting plate and the upper backing plate downward and extends into the stripper plate. The inner cavity of the hollow punch is communicated with the transverse groove, and a pressure rod is slidably installed in the inner cavity of the hollow punch. The lower end of the pressure rod extends downward outside the stripper plate, and the upper end of the pressure rod is fixedly connected with a third vertical spring. The top end of the third vertical spring is fixedly arranged in the upper bolster, and the elastic force of the third vertical spring is less than the elastic force of the first vertical spring; A plug rod is fixedly arranged on the bottom surface of the upper bolster and sequentially penetrates through the connecting plate and the upper backing plate downward and extends into the stripper plate. The plug rod is located on the right side of the pressure rod and directly above the transverse groove; A force transmission rod is fixedly arranged on the bottom surface of the connecting plate and sequentially penetrates through the upper backing plate and the stripper plate downward. The force transmission rod is located behind the pressure rod.

[0015] The diameter of the force transmission rod is equal to the diameter of the floating rod.

[0016] The pressure rod is coaxially arranged with the hollow punch, and an annular accommodating groove is opened at the lower end of the inner cavity of the hollow punch.

[0017] A method for cutting pole columns with a high-precision feeding function includes the following steps: S1. Fix the upper support of the upper die on the punch of the punching machine, and ensure that the upper die's press rod is directly above the lower die's ejector rod, the upper die's force transmission rod is directly above the lower die's floating rod, and the upper die's insertion rod is above the wedge-shaped groove of the right push bar; S2. The initial loading of the first pole, the specific operation steps are as follows: S21, the piston rod of the control longitudinal cylinder is retracted forward, and the piston rod drives the forward push block to move forward. When the forward push block is staggered with the feeding guide rail, the pole at the front end of the feeding guide rail slides into the area enclosed by the stop bar and the forward push block; S22. Control the piston rod of the longitudinal cylinder to extend backward, and the piston rod drives the forward push block to move backward. The forward push block pushes the pole toward the circular hole of the die insert. When the piston rod of the longitudinal cylinder is fully extended, the initial loading of the first pole is completed. At this time, the pole is just in the area enclosed by the V-shaped groove of the V-shaped block of the left push bar and the left end face of the right push bar. At the same time, the pole is above the circular hole and staggered with the circular hole. S3. Accurate loading of the pole, the specific operation steps are as follows: S31. Control the punch of the punching machine to move downward, and the punch drives the upper support to move downward, and the upper support drives the connecting plate, the upper pad, the second vertical spring and the unloading plate to move downward, thereby driving the hollow punch, the press rod, the force transmission rod and the insertion rod to move downward synchronously, the press rod moves toward the cylindrical platform of the pole, and at the same time, the force transmission rod moves toward the floating rod, and at the same time, the insertion rod moves toward the right push rod direction; when the press rod falls to the set height, the controller controls the punching machine to close, at this time, the bottom end of the press rod presses the cylindrical platform of the pole, and at the same time, the bottom surface of the force transmission rod just contacts the top surface of the floating rod; S32. Control the piston rod of the horizontal cylinder of the lower mold to extend to the right. The piston rod drives the left push bar to move to the right. The left push bar drives the V-shaped block to move to the right synchronously, so that the circular copper plate of the pole is pressed between the V-shaped groove of the V-shaped block and the left end surface of the right push bar. At the same time, the right push bar moves to the right along the horizontal fixed rod and gradually compresses the horizontal spring. As the piston rod of the horizontal cylinder continues to extend to the right, the central axis of the pole gradually coincides with the central axis of the circular hole. When the central axis of the pole coincides with the central axis of the circular hole, the circular aluminum plate of the pole is just embedded in the circular hole and supported on the top surface of the ejector rod; S33, control the piston rod of the horizontal cylinder to retract to the left, the piston rod drives the left push bar to move to the left, and the left push bar drives the V-shaped block to move to the left synchronously, so that the V-shaped block is separated from the pole; S34. Control the punch of the punching machine to continue to move downward, and the punch drives the upper support to continue to move downward. The upper support drives the connecting plate, the upper pad, the second vertical spring and the unloading plate to move downward relative to the stationary press rod, thereby driving the hollow punch, the force transmission rod and the insert rod to move downward relative to the stationary press rod. During the downward movement of the force transmission rod, the force transmission rod gradually pushes the floating rod downward, the floating rod in turn drives the floating plate downward, and the floating plate in turn drives the press rod downward. The press rod moves in a direction away from the pole. When the press rod separates from the pole, the annular shoulder of the pole falls downward and is then supported on the top surface of the die insert, thereby finally completing the precise loading of the pole. S4. As the punch of the control punching machine continues to move downward, the bottom surface of the stripper plate is just supported on the top surface of the concave plate, and the transverse groove cover of the stripper plate is outside the left push bar and the right push bar, and at the same time, the longitudinal groove cover of the stripper plate is outside the front push block; S5. As the punch of the punching machine continues to move downward, the punch drives the upper support to continue to move downward, and the upper support drives the connecting plate and the upper pad to move downward relative to the stationary unloading plate. The upper pad gradually compresses the second vertical spring, thereby driving the hollow punch, the force transmission rod and the insertion rod to move downward relative to the stationary unloading plate. Among them, the force transmission rod continues to push the floating rod downward, and the floating rod drives the ejection rod to continue to move downward. At the same time, the insertion rod moves toward the wedge-shaped groove of the right push strip, and then the inclined surface at the bottom end of the insertion rod contacts the wedge surface of the wedge groove; S6. As the punch of the punching machine continues to move downward, the punch drives the upper support to continue to move downward, and the upper support drives the connecting plate and the upper pad to continue to move downward relative to the stationary stripper plate. The upper pad continues to compress the second vertical spring, thereby driving the hollow punch, the force transmission rod and the insertion rod to continue to move downward relative to the stationary stripper plate, wherein the inclined surface of the insertion rod applies pressure to the wedge-shaped surface of the wedge-shaped groove to drive the right push bar to move rightward, and the right push bar gradually separates from the pole; then the annular receiving groove of the hollow punch is sleeved on the outside of the cylindrical platform of the pole, and the bottom surface of the hollow punch contacts the top surface of the circular copper plate of the pole; S7. As the punch of the punching machine continues to move downward, the hollow punch applies pressure to the top surface of the circular copper plate of the pole. Under pressure, the edge of the circular hole cuts the annular shoulder of the pole, thereby reducing the circular copper plate with a diameter of 20.4 mm to 20-20.02 mm, thereby producing the required product. The produced product then passes through the circular hole and the discharge chute in sequence, and finally falls to the ground; S8. The worker repeats steps S2 to S7 multiple times to continuously cut off the annular shoulder of the pole, thereby producing multiple products accordingly.

[0018] The present invention has the following advantages: it can accurately complete the loading of the poles and greatly improve the efficiency of cutting the poles. Brief Description of the Drawings

[0019] Figure 1 is a schematic structural view of the terminal post; Figure 2 is Figure 1 the front view of; Figure 3 is Figure 1 the main sectional view of; Figure 4 is a schematic structural view of the die insert; Figure 5 is a schematic view of the annular shoulder of the terminal post supported on the top surface of the die insert; Figure 6 is a schematic view of pressing the top surface of the circular copper plate of the terminal post by the hollow punch; Figure 7 is a schematic structural view of the lower die of the present invention; Figure 8 is Figure 7 the top view of; Figure 9 is Figure 8 the A-A sectional view of; Figure 10 is Figure 8 the B-B sectional view of; Figure 11 is a schematic structural view of the left push bar; Figure 12 is a schematic structural view of the upper die of the present invention; Figure 13 is Figure 12 the view from direction C of; Figure 14 is Figure 12 the top view of; Figure 15 is Figure 14 the D-D sectional view of; Figure 16 is Figure 14 the E-E sectional view of; Figure 17 is a schematic view of the pressure bar being directly above the ejector rod of the lower die; Figure 18 is Figure 17 the F-F sectional view of; Figure 19 is a schematic view of completing the preliminary feeding of the first terminal post; Figure 20 is Figure 19 the G-G sectional view of; Figure 21 is a schematic view of the bottom end of the pressure bar pressing the cylindrical platform of the terminal post; Figure 22 for Figure 21 HH cross-sectional view; Figure 23 Schematic diagram of a circular aluminum plate of a pole being embedded in a circular hole and supported on the top surface of a ejector rod; Figure 24 for Figure 23 JJ sectional view; Figure 25 for Figure 23 A partial enlarged view of the M part; Figure 26 A schematic diagram of the annular shoulder of the pole falling downward and then being supported on the top surface of the die insert; Figure 27 for Figure 26 KK cross-sectional view; Figure 28 for Figure 26 N partial enlarged views; Figure 29 Schematic diagram of the contact between the inclined surface at the bottom end of the plunger and the wedge-shaped surface of the wedge-shaped groove; Figure 30 for Figure 29 PP cross-sectional view; Figure 31 Schematic diagram showing the bottom surface of the hollow punch in contact with the top surface of the circular copper plate of the pole; Figure 32 for Figure 31 RR cross-sectional view; Figure 33 for Figure 31 A partial enlarged view of the Y portion; Figure 34 Schematic diagram of the cut-out product in motion; In the picture: 1-pole, 2-cylindrical platform, 3-circular copper plate, 4-circular aluminum plate, 5-die insert, 6-circular hole, 7-hollow punch; 8-base, 9-bottom pad, 10-concave template, 11-small hole, 12-first vertical spring, 13-floating plate, 14-ejection rod, 15-floating rod, 16-stop bar, 17-longitudinal cylinder, 18-forward push block, 19-feeding guide rail; 20-horizontal cylinder, 21-vertical plate, 22-left push bar, 23-V-shaped block, 24-right push bar, 25-horizontal spring, 26-wedge groove, 27-discharging chute, 28-mounting plate; 29-upper support, 30-upper pad, 31-unloading plate, 32-second vertical spring, 33-transverse groove, 34-longitudinal groove, 35-pressing rod, 36-third vertical spring, 37-insertion rod, 38-force transmission rod. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings. The protection scope of the present invention is not limited to the following: As Figures 7 to 16 shown, a die for cutting pole columns with a high-precision feeding function includes an upper die and a lower die. The lower die includes a base 8, a lower backing plate 9, and a cavity plate 10 fixedly connected together in sequence from bottom to top. A die insert 5 is fixedly provided in the cavity plate 10. A circular hole 6 penetrating its bottom surface and a small hole 11 located behind the circular hole 6 are formed in the die insert 5. A blind groove is formed on the top surface of the base 8. A first vertical spring 12 is fixedly provided at the bottom of the blind groove. The top end of the first vertical spring 12 is connected to a floating plate 13. A knockout rod 14 that penetrates the lower backing plate 9 upward and extends into the circular hole 6 is fixedly provided on the top surface of the floating plate 13. The vertical distance between the top surface of the knockout rod 14 and the top surface of the die insert 5 is 0.5 mm. A floating rod 15 is also fixedly provided on the top surface of the floating plate 13. The floating rod 15 penetrates the lower backing plate 9 upward and extends into the small hole 11.

[0021] A stop bar 16 longitudinally arranged from front to back is fixedly provided on the top surface of the cavity plate 10. A longitudinal cylinder 17 longitudinally arranged is fixedly provided on the front end face of the cavity plate 10. The piston rod of the longitudinal cylinder 17 extends backward, and a front push block 18 in contact with the stop bar 16 is fixedly connected to the extending end. The front push block 18 is located in front of the circular hole 6. A feeding guide rail 19 opposite to the front push block 18 left and right is also fixedly provided on the top surface of the cavity plate 10. The end port of the feeding guide rail 19 is located on the left side of the front push block 18. The starting port of the feeding guide rail 19 extends leftward outside the cavity plate 10. A plurality of pole columns 1 to be cut are sequentially arranged in the feeding guide rail 19, and the foremost pole column 1 is blocked by the front push block 18.

[0022] The lower die further includes a horizontal cylinder 20 and a vertical plate 21 respectively fixedly provided on the left and right outer end faces of the cavity plate 10. The piston rod of the horizontal cylinder 20 extends rightward, and a left push bar 22 located on the left side of the circular hole 6 is fixedly provided at the extending end. A V-shaped block 23 in contact with the top surface of the cavity plate 10 is fixedly provided at the right end of the left push bar 22. A horizontal fixed rod is fixedly provided in the vertical plate 21. A right push bar 24 is sleeved on the left end of the horizontal fixed rod. A horizontal spring 25 sleeved outside the horizontal fixed rod is fixedly provided between the right end face of the right push bar 24 and the left end face of the vertical plate 21. The left end face of the right push bar 24 is located above the circular hole 6 to block the right edge of the circular hole 6. A wedge-shaped groove 26 is also formed on the top surface of the right push bar 24.

[0023] The lower die further includes a discharge chute 27 formed between the lower backing plate 9 and the base 8. The upper port of the discharge chute 27 communicates with the circular hole 6 of the die insert 5, and the lower port of the discharge chute 27 penetrates through the right end face of the base 8. A rectangular support block is fixedly provided on the front end face of the die plate 10, and the cylinder block of the longitudinal cylinder 17 is fixedly provided on the top surface of the rectangular support block. An installation plate 28 is fixedly provided on the left end face of the die plate 10, the cylinder block of the horizontal cylinder 20 is fixedly provided on the left end face of the installation plate 28, and the piston rod of the horizontal cylinder 20 penetrates through the installation plate 28 to the right.

[0024] The diameter of the circular hole 6 of the die insert 5 is 20.02 mm.

[0025] The upper die includes an upper bolster 29, a connecting plate, and an upper backing plate 30 fixedly connected together in sequence from top to bottom. A stripper plate 31 is further provided directly below the upper backing plate 30. A plurality of second vertical springs 32 are fixedly provided between the stripper plate 31 and the upper backing plate 30. A transverse groove 33 penetrating through its left and right end faces is fixedly provided on the bottom surface of the stripper plate 31, and a longitudinal groove 34 communicating with the transverse groove 33 is formed on the front end face of the stripper plate 31.

[0026] A hollow punch 7 is fixedly provided on the bottom surface of the upper bolster 29 and sequentially penetrates through the connecting plate and the upper backing plate 30 downward and extends into the stripper plate 31. The inner cavity of the hollow punch 7 communicates with the transverse groove 33, and a pressure bar 35 is slidably installed in the inner cavity of the hollow punch 7. The lower end of the pressure bar 35 extends downward outside the stripper plate 31, and the upper end of the pressure bar 35 is fixedly connected with a third vertical spring 36. The top end of the third vertical spring 36 is fixedly provided in the upper bolster 29, and the elastic force of the third vertical spring 36 is less than the elastic force of the first vertical spring 12. A plug rod 37 is fixedly provided on the bottom surface of the upper bolster 29 and sequentially penetrates through the connecting plate and the upper backing plate 30 downward and extends into the stripper plate 31. The plug rod 37 is located on the right side of the pressure bar 35 and directly above the transverse groove 33. A force transmission rod 38 is fixedly provided on the bottom surface of the connecting plate and sequentially penetrates through the upper backing plate 30 and the stripper plate 31 downward. The force transmission rod 38 is located behind the pressure bar 35, and the diameter of the force transmission rod 38 is equal to the diameter of the floating rod 15. The pressure bar 35 is coaxially arranged with the hollow punch 7, and an annular accommodation groove is formed at the lower end of the inner cavity of the hollow punch 7.

[0027] A method for cutting pole columns with a high-precision feeding function includes the following steps: S1. Fix the upper bolster 29 of the upper die on the punch head of the stamping machine, and ensure that the pressure bar 35 of the upper die is directly above the ejector rod 14 of the lower die. As shown in, the force transmission rod 38 of the upper die is directly above the floating rod 15 of the lower die, and the plug rod 37 of the upper die is above the wedge-shaped groove 26 of the right push bar 24. Figures 17 to 18 shown, the force transmission rod 38 of the upper die is directly above the floating rod 15 of the lower die, and the plug rod 37 of the upper die is above the wedge-shaped groove 26 of the right push bar 24; S2. Preliminary loading of the first pole 1. The specific operation steps are as follows: S21, the piston rod of the control longitudinal cylinder 17 is retracted forward, and the piston rod drives the forward push block 18 to move forward. When the forward push block 18 is staggered with the feeding guide rail 19, the pole 1 at the head end of the feeding guide rail 19 slides into the area enclosed by the stop bar 16 and the forward push block 18; S22, control the piston rod of the longitudinal cylinder 17 to extend backward, the piston rod drives the forward push block 18 to move backward, and the forward push block 18 pushes the pole 1 toward the circular hole 6 of the die insert 5. When the piston rod of the longitudinal cylinder 17 is fully extended, the preliminary loading of the first pole 1 is completed. Figures 19 to 20 As shown, at this time, the pole 1 is just in the area enclosed by the V-shaped groove of the V-shaped block 23 of the left push bar 22 and the left end surface of the right push bar 24. At the same time, the pole 1 is above the circular hole 6 and staggered with the circular hole 6; S3, precise loading of pole 1, the specific operation steps are as follows: S31, control the punch of the punching machine to move downward, the punch drives the upper support 29 to move downward, the upper support 29 drives the connecting plate, the upper pad 30, the second vertical spring 32 and the unloading plate 31 to move downward, and then drives the hollow punch 7, the pressing rod 35, the force transmission rod 38 and the insertion rod 37 to move downward synchronously, the pressing rod 35 moves toward the cylindrical platform 2 of the pole 1, and at the same time, the force transmission rod 38 moves toward the floating rod 15, and at the same time, the insertion rod 37 moves toward the right push bar 24; when the pressing rod 35 falls to the set height, the controller controls the punching machine to close, at this time, the bottom end of the pressing rod 35 presses the cylindrical platform 2 of the pole 1, as shown in FIG. Figures 21 to 22 As shown, at the same time, the bottom surface of the force transmission rod 38 just contacts the top surface of the floating rod 15; S32, the piston rod of the horizontal cylinder 20 of the lower mold is extended to the right, and the piston rod drives the left push bar 22 to move to the right, and the left push bar 22 drives the V-shaped block 23 to move to the right synchronously, so that the circular copper plate 3 of the pole 1 is pressed between the V-shaped groove of the V-shaped block 23 and the left end surface of the right push bar 24. At the same time, the right push bar 24 moves to the right along the horizontal fixed rod and gradually compresses the horizontal spring 25; As the piston rod of the horizontal cylinder 20 continues to extend to the right, the center axis of the pole 1 gradually coincides with the center axis of the circular hole 6. When the center axis of the pole 1 coincides with the center axis of the circular hole 6, the circular aluminum plate 4 of the pole 1 is just embedded in the circular hole 6 and supported on the top surface of the ejector rod 14. Figures 23 to 25 As shown; S33, control the piston rod of the horizontal cylinder 20 to retract to the left, the piston rod drives the left push bar 22 to move left, and the left push bar 22 drives the V-shaped block 23 to move left synchronously, so that the V-shaped block 23 is separated from the pole 1; S34. Control the punch of the punching machine to continue to move downward, and the punch drives the upper support 29 to continue to move downward. The upper support 29 drives the connecting plate, the upper pad 30, the second vertical spring 32 and the unloading plate 31 to move downward relative to the stationary pressing rod 35, thereby driving the hollow punch 7, the force transmission rod 38 and the insert rod 37 to move downward relative to the stationary pressing rod 35. In the process of the force transmission rod 38 moving downward, the force transmission rod 38 gradually pushes the floating rod 15 to move downward, and the floating rod 15 drives the floating plate 13 to move downward, and the floating plate 13 drives the pressing rod 35 to move downward. The pressing rod 35 moves in the direction away from the pole 1. When the pressing rod 35 is separated from the pole 1, the annular shoulder of the pole 1 falls downward and is then supported on the top surface of the die insert 5, thereby finally completing the precise loading of the pole 1. Figures 26 to 28 As shown; Among them, it can be seen from steps S31~S32 that, due to the elastic force of the third vertical spring 36, the pressing rod 35 always presses the pole 1 on the top surface of the die insert 5, thereby ensuring that when the piston rod of the horizontal cylinder 20 pushes the left push bar 22 to the right, the circular copper plate 3 of the pole 1 can move while being clamped by the V-shaped block 23 of the left push bar 22 and the right push bar 24, so that the central axis of the pole 1 and the central axis of the circular hole 6 can automatically coincide, and then the circular aluminum plate 4 of the pole 1 can automatically embed into the circular hole 6; then in step S34, it is only necessary to control the punching head of the punching machine to continue to move downward, so that the annular shoulder of the pole 1 can be supported on the top surface of the circular hole 6, thereby finally completing the precise loading of the pole 1.

[0028] It can be seen that this mold can complete the precise loading of the pole 1, solving the technical difficulty that the intermittent manipulator in the prior art cannot accurately embed the circular aluminum plate 4 of the pole 1 into the circular hole 6, thereby cutting off the annular shoulder of the pole 1 to produce the required product.

[0029] S4. As the punch of the control punching machine continues to move downward, the bottom surface of the stripper plate 31 is just supported on the top surface of the concave plate 10, and the transverse groove 33 of the stripper plate 31 covers the outside of the left push bar 22 and the right push bar 24. At the same time, the longitudinal groove 34 of the stripper plate 31 covers the outside of the front push block 18; S5. As the punch of the punching machine continues to move downward, the punch drives the upper support 29 to continue to move downward, and the upper support 29 drives the connecting plate and the upper pad 30 to move downward relative to the stationary unloading plate 31. The upper pad 30 gradually compresses the second vertical spring 32, thereby driving the hollow punch 7, the force transmission rod 38 and the insertion rod 37 to move downward relative to the stationary unloading plate 31. Among them, the force transmission rod 38 continues to push the floating rod 15 downward, and the floating rod 15 drives the ejecting rod 14 to continue to move downward. At the same time, the insertion rod 37 moves toward the wedge-shaped groove 26 of the right push strip 24, and then the inclined surface at the bottom end of the insertion rod 37 contacts the wedge surface of the wedge groove 26, as shown in FIG. Figures 29 to 30 As shown; S6. As the punch of the punching machine continues to move downward, the punch drives the upper support 29 to continue to move downward, and the upper support 29 drives the connecting plate and the upper pad 30 to continue to move downward relative to the stationary unloading plate 31. The upper pad 30 continues to compress the second vertical spring 32, thereby driving the hollow punch 7, the force transmission rod 38 and the insertion rod 37 to continue to move downward relative to the stationary unloading plate 31, wherein the inclined surface of the insertion rod 37 applies pressure to the wedge-shaped surface of the wedge-shaped groove 26 to drive the right push bar 24 to move rightward, and the right push bar 24 gradually separates from the pole 1; then the annular receiving groove of the hollow punch 7 is sleeved on the outside of the cylindrical platform 2 of the pole 1, and the bottom surface of the hollow punch 7 is in contact with the top surface of the circular copper plate 3 of the pole 1, as shown in FIG. Figures 31 to 33 As shown; S7. As the punch of the punching machine continues to move downward, the hollow punch 7 presses the top surface of the circular copper plate 3 of the pole 1. Under pressure, the edge of the circular hole 6 cuts the annular shoulder of the pole 1, thereby reducing the diameter of the circular copper plate 3 of 20.4mm to 20~20.02mm, and then producing the required product. The product then passes through the circular hole 6 and the discharge chute 27 in sequence and finally falls to the ground. The sliding direction of the product is as follows: Figure 34 As indicated by the arrow; S8. The worker repeats steps S2 to S7 multiple times to continuously cut off the annular shoulder of the pole 1, thereby producing multiple products accordingly.

[0030] Among them, it can be seen from steps S2 to S8 that, through the cooperation between the upper mold and the lower mold, the mold can continuously and accurately feed each pole 1 in the feeding guide 19 into the circular hole 6 of the die insert 5, and can also automatically convey the cut products out from the discharge chute 27, thereby realizing continuous cutting of multiple poles 1 and greatly improving the cutting efficiency of the poles 1.

Claims

1. A die for cutting pole columns with a high-precision loading function, characterized in that: It includes an upper die and a lower die. The lower die includes a base (8), a lower backing plate (9), and a cavity plate (10) that are fixedly connected to each other in sequence from bottom to top. A cavity insert (5) is fixedly arranged in the cavity plate (10). A circular hole (6) penetrating through its bottom surface and a small hole (11) located behind the circular hole (6) are formed in the cavity insert (5). A blind groove is formed on the top surface of the base (8). A first vertical spring (12) is fixedly arranged at the bottom of the blind groove. The top end of the first vertical spring (12) is connected to a floating plate (13). A knockout rod (14) that penetrates upward through the lower backing plate (9) and extends into the circular hole (6) is fixedly arranged on the top surface of the floating plate (13). The vertical distance between the top surface of the knockout rod (14) and the top surface of the cavity insert (5) is 0.5 mm. A floating rod (15) is also fixedly arranged on the top surface of the floating plate (13). The floating rod (15) penetrates upward through the lower backing plate (9) and extends into the small hole (11). A stop bar (16) arranged longitudinally from front to back is fixedly arranged on the top surface of the cavity plate (10). A longitudinal cylinder (17) arranged longitudinally is fixedly arranged on the front end face of the cavity plate (10). The piston rod of the longitudinal cylinder (17) extends backward, and a front push block (18) that contacts the stop bar (16) is fixedly connected to the extending end. The front push block (18) is located on the front side of the circular hole (6). A feeding guide rail (19) that is opposite to the front push block (18) left and right is also fixedly arranged on the top surface of the cavity plate (10). The end port of the feeding guide rail (19) is located on the left side of the front push block (18). The starting port of the feeding guide rail (19) extends leftward outside the cavity plate (10). The lower die further includes a horizontal cylinder (20) and a vertical plate (21) that are respectively fixedly arranged on the left and right outer end faces of the cavity plate (10). The piston rod of the horizontal cylinder (20) extends rightward, and a left push bar (22) located on the left side of the circular hole (6) is fixedly arranged at the extending end. A V-shaped block (23) that contacts the top surface of the cavity plate (10) is fixedly arranged at the right end of the left push bar (22). A horizontal fixed rod is fixedly arranged in the vertical plate (21). A right push bar (24) is sleeved on the left end of the horizontal fixed rod. A horizontal spring (25) sleeved outside the horizontal fixed rod is fixedly arranged between the right end face of the right push bar (24) and the left end face of the vertical plate (21). The left end face of the right push bar (24) is located above the circular hole (6) to block the right edge of the circular hole (6). A wedge-shaped groove (26) is also formed on the top surface of the right push bar (24).

2. The die for cutting pole columns with a high-precision feeding function according to claim 1, wherein: The lower die further includes a discharge chute (27) formed between the lower backing plate (9) and the base (8). The upper port of the discharge chute (27) is communicated with the circular hole (6) of the cavity insert (5). The lower port of the discharge chute (27) penetrates through the right end face of the base (8).

3. The die for cutting pole columns with a high-precision feeding function according to claim 2, wherein: A rectangular support block is fixedly arranged on the front end face of the cavity plate (10). The cylinder block of the longitudinal cylinder (17) is fixedly arranged on the top surface of the rectangular support block.

4. The die for cutting pole columns with a high-precision feeding function according to claim 3, characterized in that: An installation plate (28) is fixedly provided on the left end face of the concave template (10). The cylinder block of the horizontal cylinder (20) is fixedly provided on the left end face of the installation plate (28), and the piston rod of the horizontal cylinder (20) penetrates through the installation plate (28) to the right.

5. A die for cutting pole columns with a high-precision feeding function according to claim 4, characterized in that: The diameter of the circular hole (6) of the concave die insert (5) is 20.02 mm.

6. The die for cutting pole columns with a high-precision feeding function according to claim 5, characterized in that: A plurality of pole columns (1) to be cut are sequentially arranged in the feeding guide rail (19), and the foremost pole column (1) is blocked by the front pushing block (18).

7. The die for cutting pole columns with a high-precision feeding function according to claim 6, characterized in that: The upper die includes an upper support (29), a connecting plate, and an upper backing plate (30) fixedly connected together in sequence from top to bottom. A stripper plate (31) is further provided directly below the upper backing plate (30). A plurality of second vertical springs (32) are fixedly provided between the stripper plate (31) and the upper backing plate (30). A transverse groove (33) penetrating through its left and right end faces is fixedly provided on the bottom surface of the stripper plate (31). A longitudinal groove (34) communicating with the transverse groove (33) is provided on the front end face of the stripper plate (31). A hollow punch (7) fixedly provided on the bottom surface of the upper support (29) penetrates through the connecting plate and the upper backing plate (30) downward in sequence and extends into the stripper plate (31). The inner cavity of the hollow punch (7) is communicated with the transverse groove (33). A pressure rod (35) is slidably installed in the inner cavity of the hollow punch (7). The lower end of the pressure rod (35) extends downward outside the stripper plate (31). The upper end of the pressure rod (35) is fixedly connected with a third vertical spring (36). The top end of the third vertical spring (36) is fixedly provided in the upper support (29). The elastic force of the third vertical spring (36) is less than the elastic force of the first vertical spring (12). An insertion rod (37) fixedly provided on the bottom surface of the upper support (29) penetrates through the connecting plate and the upper backing plate (30) downward in sequence and extends into the stripper plate (31). The insertion rod (37) is located on the right side of the pressure rod (35) and directly above the transverse groove (33). A force transmission rod (38) fixedly provided on the bottom surface of the connecting plate penetrates through the upper backing plate (30) and the stripper plate (31) downward in sequence. The force transmission rod (38) is located behind the pressure rod (35).

8. A die for cutting pole columns with a high-precision feeding function according to claim 7, characterized in that: The diameter of the force transmission rod (38) is equal to the diameter of the floating rod (15).

9. A die for cutting pole columns with a high-precision feeding function according to claim 8, characterized in that: The pressure rod (35) is coaxially arranged with the hollow punch (7). An annular accommodation groove is provided at the lower end of the inner cavity of the hollow punch (7).

10. A method for cutting pole columns with a high-precision feeding function, using the die for cutting pole columns with a high-precision feeding function as described in claim 9, characterized in that: It includes the following steps: S1. Fix the upper support (29) of the upper die on the punch head of the stamping machine, and ensure that the pressure rod (35) of the upper die is directly above the ejector rod (14) of the lower die, the force transmission rod (38) of the upper die is directly above the floating rod (15) of the lower die, and the insertion rod (37) of the upper die is above the wedge-shaped groove (26) of the right side push bar (24). S2. The preliminary feeding of the first pole column (1), and its specific operation steps are as follows: S21, the piston rod of the control longitudinal cylinder (17) is retracted forward, and the piston rod drives the forward push block (18) to move forward. When the forward push block (18) is staggered with the feeding guide rail (19), the pole (1) at the front end of the feeding guide rail (19) slides into the area enclosed between the stop bar (16) and the forward push block (18); S22, control the piston rod of the longitudinal cylinder (17) to extend backward, and the piston rod drives the front push block (18) to move backward, and the front push block (18) pushes the pole (1) toward the circular hole (6) of the die insert (5). When the piston rod of the longitudinal cylinder (17) is fully extended, the initial loading of the first pole (1) is completed. At this time, the pole (1) is just in the area enclosed by the V-shaped groove of the V-shaped block (23) of the left push strip (22) and the left end face of the right push strip (24). At the same time, the pole (1) is above the circular hole (6) and staggered with the circular hole (6); S3. Accurate loading of the pole (1). The specific operation steps are as follows: S31, control the punch of the punching machine to move downward, the punch drives the upper support (29) to move downward, the upper support (29) drives the connecting plate, the upper pad (30), the second vertical spring (32) and the unloading plate (31) to move downward, and then drives the hollow punch (7), the pressing rod (35), the force transmission rod (38) and the insertion rod (37) to move downward synchronously, the pressing rod (35) moves toward the cylindrical platform (2) of the pole (1), and at the same time, the force transmission rod (38) moves toward the floating rod (15), and at the same time, the insertion rod (37) moves toward the right push bar (24); when the pressing rod (35) falls to the set height, the controller controls the punching machine to close, at this time, the bottom end of the pressing rod (35) presses the cylindrical platform (2) of the pole (1), and at the same time, the bottom surface of the force transmission rod (38) just contacts the top surface of the floating rod (15); S32, the piston rod of the horizontal cylinder (20) of the control lower mold extends to the right, the piston rod drives the left push bar (22) to move to the right, and the left push bar (22) drives the V-shaped block (23) to move to the right synchronously, so that the circular copper plate (3) of the pole (1) is pressed between the V-shaped groove of the V-shaped block (23) and the left end face of the right push bar (24), and at the same time, the right push bar (24) moves to the right along the horizontal fixed rod and gradually compresses the horizontal spring (25); As the piston rod of the horizontal cylinder (20) continues to extend to the right, the center axis of the pole (1) gradually coincides with the center axis of the circular hole (6). When the center axis of the pole (1) coincides with the center axis of the circular hole (6), the circular aluminum plate (4) of the pole (1) is just embedded in the circular hole (6) and supported on the top surface of the ejector rod (14); S33, the piston rod of the control horizontal cylinder (20) is retracted to the left, the piston rod drives the left push bar (22) to move to the left, and the left push bar (22) drives the V-shaped block (23) to move to the left synchronously, so that the V-shaped block (23) is separated from the pole (1); S34, control the punch of the punching machine to continue to move downward, the punch drives the upper support (29) to continue to move downward, the upper support (29) drives the connecting plate, the upper pad (30), the second vertical spring (32) and the unloading plate (31) to move downward relative to the stationary pressing rod (35), and then drives the hollow punch (7), the force transmission rod (38) and the insertion rod (37) to move downward relative to the stationary pressing rod (35), wherein the force transmission rod (38) moves downward during the downward movement. The force transmission rod (38) gradually pushes the floating rod (15) to move downward, the floating rod (15) drives the floating plate (13) to move downward, the floating plate (13) drives the pressing rod (35) to move downward, and the pressing rod (35) moves in a direction away from the pole (1). When the pressing rod (35) is separated from the pole (1), the annular shoulder of the pole (1) falls downward and is then supported on the top surface of the die insert (5), thereby finally completing the precise loading of the pole (1); S4. As the punch of the control punching machine continues to move downward, the bottom surface of the stripper plate (31) is just supported on the top surface of the concave template (10), and the transverse groove (33) of the stripper plate (31) covers the outside of the left push bar (22) and the right push bar (24), and at the same time, the longitudinal groove (34) of the stripper plate (31) covers the outside of the front push block (18); S5. As the punch of the punching machine continues to move downward, the punch drives the upper support (29) to continue to move downward, and the upper support (29) drives the connecting plate and the upper pad (30) to move downward relative to the stationary unloading plate (31). The upper pad (30) gradually compresses the second vertical spring (32), thereby driving the hollow punch (7), the force transmission rod (38) and the insertion rod (37) to move downward relative to the stationary unloading plate (31), wherein the force transmission rod (38) continues to push the floating rod (15) downward, and the floating rod (15) drives the ejecting rod (14) to continue to move downward. At the same time, the insertion rod (37) moves toward the wedge-shaped groove (26) of the right push strip (24), and then the inclined surface at the bottom end of the insertion rod (37) contacts the wedge-shaped surface of the wedge-shaped groove (26); S6. As the punch of the punching machine continues to move downward, the punch drives the upper support (29) to continue to move downward, and the upper support (29) drives the connecting plate and the upper pad (30) to continue to move downward relative to the stationary unloading plate (31). The upper pad (30) continues to compress the second vertical spring (32), thereby driving the hollow punch (7), the force transmission rod (38) and the insertion rod (37) to continue to move downward relative to the stationary unloading plate (31), wherein the inclined surface of the insertion rod (37) applies pressure to the wedge surface of the wedge groove (26) to drive the right push bar (24) to move rightward, and the right push bar (24) and the pole (1) are gradually separated; then the annular receiving groove of the hollow punch (7) is sleeved on the outside of the cylindrical platform (2) of the pole (1), and the bottom surface of the hollow punch (7) contacts the top surface of the circular copper plate (3) of the pole (1); S7. As the punch of the stamping machine continues to move downward, the hollow punch (7) presses on the top surface of the circular copper plate (3) of the counter pole (1). Under the pressure, the orifice edge of the circular hole (6) cuts the annular shoulder of the counter pole (1), thereby changing the circular copper plate (3) with a diameter of 20.4 mm into 20 - 20.02 mm, and then producing the required product. Then, the produced product sequentially passes through the circular hole (6) and the discharge chute (27), and finally falls to the ground; S8. Workers repeat the operations of steps S2 - S7 many times, and then the annular shoulders of the counter poles (1) can be continuously cut off, and then multiple products can be correspondingly produced.

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