A mold and method for cutting poles with high-precision loading function

Abstract

The present invention discloses a mold and method for cutting poles with a high-precision loading function. The present invention relates to the technical field of cutting off the annular shoulder of the pole. The mold comprises an upper mold and a lower mold. The lower mold comprises a base, a lower pad, and a concave mold plate that are fixedly connected together from bottom to top, and a concave mold insert is fixed in the concave mold plate. The lower mold also comprises a horizontal cylinder and a vertical plate respectively fixed on the left and right outer end surfaces of the concave mold plate. 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 fixed on the extended end. A V-shaped block in contact with the top surface of the concave mold plate is fixed on the right end of the left push bar. A right push bar is sleeved on the left end of the horizontal fixed rod. A horizontal spring sleeved on the outside of the horizontal fixed rod is fixed between the right end surface of the right push bar and the left end surface of the vertical plate. The beneficial effects of the present invention are: it can accurately complete the loading of the pole and greatly improve the efficiency of cutting the pole.

Description

Technical Field

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

[0002] The structure of a certain pole 1 is as follows Figures 1 to 3 As shown, it comprises a cylindrical base 2, a circular copper plate 3, and a circular aluminum plate 4, which are fixedly connected from top to bottom. The cylindrical base 2, circular copper plate 3, and 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, with a diameter difference of only 0.4 mm between the two. The width of the annular shoulder formed between the circular copper plate 3 and the circular aluminum plate 4 is only 0.2 mm. For process requirements, the annular shoulder of each pole 1 is trimmed off to reduce the diameter of the circular copper plate 3 to 20.0-20.02 mm, thereby producing the desired product.

[0003] The principle of cutting off the annular shoulder of pole 1 is:

[0004] S1, select one Figure 4 The diameter of the circular hole 6 of the die insert 5 shown is 20.02 mm;

[0005] S2. Take out a pole 1 and insert the circular aluminum plate 4 of the pole 1 into the circular hole 6 of the die insert 5, and ensure that the annular shoulder of the pole 1 is supported on the top surface of the die insert 5 to complete the loading of the pole 1. Figure 5 As shown;

[0006] S3, pressurize the top surface of the circular copper plate 3 of the pole 1 through the hollow punch 7, as shown in FIG. Figure 6 As shown, under pressure, the edge of the circular hole 6 cuts the annular shoulder of the pole 1, thereby cutting the circular copper plate 3 with a diameter of 20.4 mm into pieces of 20-20.02 mm, thereby producing the desired product. The obtained product falls from the circular hole 6, and the cut annular shoulder remains on the top surface of the die insert 5.

[0007] S4. The worker repeats steps S1 to S3 multiple times to continuously cut off the annular shoulder of the pole 1, thereby producing multiple products accordingly.

[0008] 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, the gap is quite small. Therefore, the intermittent handling robot using the existing technology cannot accurately embed the circular aluminum plate 4 of the pole 1 into the circular hole 6 [because the grabbing stroke of the intermittent handling robot has a large error], and the annular shoulder of the pole 1 cannot be supported on the top surface of the die insert 5, and the annular shoulder of the pole 1 cannot be cut subsequently, and the required product cannot be produced.

[0009] To address this issue, workers can only manually insert the circular aluminum plate 4 of the pole 1 into the circular hole 6 of the die insert 5, and then use a hollow punch 7 to pressurize the top surface of the circular copper plate 3 to produce the desired product. However, manual loading is slow, labor costs are high, and continuous cutting of the pole 1 is impossible, resulting in a technical drawback of low efficiency in cutting the pole 1.

[0010] Therefore, there is an urgent need for a mold and method that can accurately complete the loading of the poles and greatly improve the efficiency of cutting the poles. Summary of the Invention

[0011] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a mold and method for cutting poles with high-precision loading function, which can accurately complete the loading of poles and greatly improve the efficiency of cutting poles.

[0012] The objectives of the present invention are achieved through the following technical solutions: a mold for cutting poles with a high-precision loading function, comprising an upper mold and a lower mold, wherein the lower mold comprises a base, a lower pad, and a concave mold plate fixedly connected together from bottom to top, a concave mold insert fixedly disposed in the concave mold plate, and a circular hole penetrating the bottom surface thereof and a small hole located behind the circular hole are formed in the concave mold insert;

[0013] A blind groove is formed on the top surface of the base, a first vertical spring is fixed to the bottom of the blind groove, a floating plate is connected to the top end of the first vertical spring, a ejector rod is fixed on the top surface of the floating plate, the ejector rod passes through the lower plate upward and extends into the circular hole, the vertical spacing between the top surface of the ejector rod and the top surface of the die insert is 0.5 mm, and a floating rod is also fixed on the top surface of the floating plate, the floating rod passes through the lower plate upward and extends into the small hole;

[0014] A stop bar arranged longitudinally from front to back is fixedly provided on the top surface of the concave template, a longitudinal cylinder arranged longitudinally is fixedly provided on the front end surface of the concave template, the piston rod of the longitudinal cylinder extends rearward, and a forward push block in contact with the stop bar is fixedly connected to the extended end, and the forward push block is located on the front side of the circular hole, and a feeding guide rail opposite to the forward push block on the top surface of the concave template is also fixedly provided, the end opening of the feeding guide rail is located on the left side of the forward push block, and the first end opening of the feeding guide rail extends to the left outside the concave template;

[0015] The lower mold also includes a horizontal cylinder and a vertical plate respectively fixed 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 strip located on the left side of the circular hole is fixed on the extended end, and a V-shaped block in contact with the top surface of the concave template is fixed on the right end of the left push strip; a horizontal fixing rod is fixed in the vertical plate, and a right push strip is sleeved on the left end of the horizontal fixing rod, and a horizontal spring sleeved on the outside of the horizontal fixing rod is fixed between the right end surface of the right push strip and the left end surface of the vertical plate; the left end surface of the right push strip is located above the circular hole to block the right edge of the circular hole, and a wedge-shaped groove is also provided on the top surface of the right push strip.

[0016] The lower die also includes a discharge chute opened between the lower pad and the base, the upper end of the discharge chute is connected to the circular hole of the die insert, and the lower end of the discharge chute passes through the right end surface of the base.

[0017] A rectangular support block is fixedly provided on the front end surface of the concave template, and the cylinder body of the longitudinal cylinder is fixedly provided on the top surface of the rectangular support block.

[0018] A mounting plate is fixedly provided on the left end surface of the concave template, the cylinder body of the horizontal cylinder is fixedly provided on the left end surface of the mounting plate, and the piston rod of the horizontal cylinder penetrates the mounting plate to the right.

[0019] The diameter of the circular hole of the die insert is 20.02 mm.

[0020] A plurality of poles to be cut are arranged in sequence in the feeding guide rail, and the pole at the very end is blocked by the forward push block.

[0021] The upper mold includes an upper support, a connecting plate and an upper pad fixedly connected together from top to bottom. A stripper plate is also provided directly below the upper pad. A plurality of second vertical springs are fixed between the stripper plate and the upper pad. A transverse groove penetrating the left and right end surfaces of the stripper plate is fixed on the bottom surface of the stripper plate. A longitudinal groove connected to the transverse groove is provided on the front end surface of the stripper plate.

[0022] A hollow punch is fixedly provided on the bottom surface of the upper support, which sequentially passes through the connecting plate and the upper pad and extends into the stripper plate. The inner cavity of the hollow punch is connected to the transverse groove, and a pressing rod is slidably installed in the inner cavity of the hollow punch. The lower end of the pressing rod extends downward to the outside of the stripper plate, and the upper end of the pressing rod is fixedly connected to a third vertical spring. The top end of the third vertical spring is fixedly provided in the upper support, and the elastic force of the third vertical spring is smaller than the elastic force of the first vertical spring.

[0023] A plug rod is fixed on the bottom surface of the upper support, which passes through the connecting plate and the upper pad in sequence downward and extends into the stripper plate. The plug rod is located on the right side of the press rod and directly above the transverse groove.

[0024] A force transmission rod is fixed on the bottom surface of the connecting plate and passes through the upper pad and the unloading plate in sequence downwards. The force transmission rod is located at the rear side of the pressing rod.

[0025] The diameter of the force transmission rod is equal to the diameter of the floating rod.

[0026] The press rod is coaxially arranged with the hollow punch, and an annular accommodating groove is provided at the lower end of the inner cavity of the hollow punch.

[0027] A method for cutting poles with a high-precision loading function comprises the following steps:

[0028] 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;

[0029] S2. The initial loading of the first pole, the specific operation steps are as follows:

[0030] 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;

[0031] 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.

[0032] S3. Accurate loading of the pole, the specific operation steps are as follows:

[0033] 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;

[0034] 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.

[0035] 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;

[0036] 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;

[0037] 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.

[0038] 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;

[0039] 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;

[0040] 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;

[0041] 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;

[0042] 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.

[0043] 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

[0044] Figure 1 It is a schematic diagram of the structure of the pole;

[0045] Figure 2 for Figure 1 The main view;

[0046] Figure 3 for Figure 1 The main cross-sectional diagram of

[0047] Figure 4 It is a structural diagram of the die insert;

[0048] Figure 5 Schematic diagram of the annular shoulder of the pole supported on the top surface of the die insert;

[0049] Figure 6 Schematic diagram of applying pressure to the top surface of the circular copper plate of the pole through a hollow punch;

[0050] Figure 7 It is a structural schematic diagram of the lower mold of the present invention;

[0051] Figure 8 for Figure 7 A top view of

[0052] Figure 9 for Figure 8 AA cross-sectional view;

[0053] Figure 10 for Figure 8 BB cross-sectional view;

[0054] Figure 11 It is a structural diagram of the push bar on the left;

[0055] Figure 12 It is a structural schematic diagram of the upper mold of the present invention;

[0056] Figure 13 for Figure 12 C-direction schematic diagram;

[0057] Figure 14 for Figure 12 A top view of

[0058] Figure 15 for Figure 14 DD cross-sectional view;

[0059] Figure 16 for Figure 14 EE cross-sectional view;

[0060] Figure 17 This is a schematic diagram of the press pin being located directly above the ejector pin of the lower die;

[0061] Figure 18 for Figure 17 FF cross-sectional diagram;

[0062] Figure 19 Schematic diagram for completing the initial loading of the first pole;

[0063] Figure 20 for Figure 19 GG cross-sectional view;

[0064] Figure 21 The bottom end of the pressing rod is used to press the cylindrical base of the pole;

[0065] Figure 22 for Figure 21 HH cross-sectional view;

[0066] 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;

[0067] Figure 24 for Figure 23 JJ sectional view;

[0068] Figure 25 for Figure 23 A partial enlarged view of the M part;

[0069] 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;

[0070] Figure 27 for Figure 26 KK cross-sectional view;

[0071] Figure 28 for Figure 26 N partial enlarged views;

[0072] 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;

[0073] Figure 30 for Figure 29 PP cross-sectional view;

[0074] 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;

[0075] Figure 32 for Figure 31 RR cross-sectional view;

[0076] Figure 33 for Figure 31 A partial enlarged view of the Y portion;

[0077] Figure 34 Schematic diagram of the cut-out product in motion;

[0078] In the picture:

[0079] 1-pole, 2-cylindrical platform, 3-circular copper plate, 4-circular aluminum plate, 5-die insert, 6-circular hole, 7-hollow punch;

[0080] 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;

[0081] 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

[0082] The present invention will be further described below with reference to the accompanying drawings, and the protection scope of the present invention is not limited to the following:

[0083] like Figures 7 to 16 As shown, a mold for cutting poles with a high-precision loading function includes an upper mold and a lower mold. The lower mold includes a base 8, a lower pad 9 and a concave mold plate 10 fixed together in sequence from bottom to top. A concave mold plate 10 is fixed with a concave mold insert 5, and a circular hole 6 penetrating its bottom surface and a small hole 11 located on the rear side of the circular hole 6 are provided in the concave mold insert 5; a blind groove is provided on the top surface of the base 8, and a first vertical spring 12 is fixed at the bottom of the blind groove. The top end of the first vertical spring 12 is connected to a floating plate 13, and a ejector rod 14 is fixed on the top surface of the floating plate 13, which penetrates the lower pad 9 upward and extends into the circular hole 6. The vertical spacing between the top surface of the ejector rod 14 and the top surface of the concave mold insert 5 is 0.5 mm. A floating rod 15 is also fixed on the top surface of the floating plate 13, and the floating rod 15 penetrates the lower pad 9 upward and extends into the small hole 11.

[0084] A baffle 16 arranged longitudinally from front to back is fixedly provided on the top surface of the concave template 10, and a longitudinal cylinder 17 arranged longitudinally is fixedly provided on the front end surface of the concave template 10. The piston rod of the longitudinal cylinder 17 extends backward, and a forward push block 18 in contact with the baffle 16 is fixedly connected to the extended end. The forward push block 18 is located on the front side of the circular hole 6. A feeding guide rail 19 opposite to the forward push block 18 is also fixedly provided on the top surface of the concave template 10. The end port of the feeding guide rail 19 is located on the left side of the forward push block 18, and the first port of the feeding guide rail 19 extends to the left outside the concave template 10; a plurality of poles 1 to be cut are arranged in sequence in the feeding guide rail 19, and the pole 1 at the very end is blocked by the forward push block 18.

[0085] The lower mold also includes a horizontal cylinder 20 and a vertical plate 21 respectively fixed on the left and right outer end surfaces of the concave template 10. The piston rod of the horizontal cylinder 20 extends to the right, and a left push bar 22 located on the left side of the circular hole 6 is fixed on the extended end, and a V-shaped block 23 in contact with the top surface of the concave template 10 is fixed on the right end of the left push bar 22; a horizontal fixing rod is fixed in the vertical plate 21, and a right push bar 24 is sleeved on the left end of the horizontal fixing rod, and a horizontal spring 25 sleeved on the outside of the horizontal fixing rod is fixed between the right end surface of the right push bar 24 and the left end surface of the vertical plate 21; the left end surface of the right push bar 24 is located above the circular hole 6 to block the right edge of the circular hole 6, and a wedge-shaped groove 26 is also provided on the top surface of the right push bar 24.

[0086] The lower die also includes a discharge chute 27 defined between the lower pad 9 and the base 8. The upper end of the discharge chute 27 communicates with the circular hole 6 of the die insert 5, while the lower end of the discharge chute 27 extends through the right end face of the base 8. A rectangular support block is fixed to the front end face of the die plate 10, and the cylinder body of the longitudinal cylinder 17 is fixed to the top surface of the rectangular support block. A mounting plate 28 is fixed to the left end face of the die plate 10, and the cylinder body of the horizontal cylinder 20 is fixed to the left end face of the mounting plate 28. The piston rod of the horizontal cylinder 20 extends rightward through the mounting plate 28.

[0087] The diameter of the circular hole 6 of the die insert 5 is 20.02 mm.

[0088] The upper mold includes an upper support 29, a connecting plate and an upper pad 30 that are fixed together in sequence from top to bottom. A stripping plate 31 is also provided directly below the upper pad 30. A plurality of second vertical springs 32 are fixed between the stripping plate 31 and the upper pad 30. A transverse groove 33 that passes through the left and right end faces of the stripping plate 31 is fixed on the bottom surface of the stripping plate 31, and a longitudinal groove 34 that is connected to the transverse groove 33 is provided on the front end face of the stripping plate 31.

[0089] The bottom surface of the upper support 29 is fixedly provided with a hollow punch 7 that sequentially passes through the connecting plate and the upper pad 30 downward and extends into the stripper plate 31. The inner cavity of the hollow punch 7 is communicated with the transverse groove 33, and a pressing rod 35 is slidably installed in the inner cavity of the hollow punch 7. The lower end of the pressing rod 35 extends downward to the outside of the stripper plate 31, and the upper end of the pressing rod 35 is fixedly connected to a third vertical spring 36. The top end of the third vertical spring 36 is fixed in the upper support 29, and the elastic force of the third vertical spring 36 is less than the elastic force of the first vertical spring 12; the bottom surface of the upper support 29 is fixedly provided with an insertion rod 37 that sequentially passes through the connecting plate and the upper pad 30 downward and extends into the stripper plate 31. The insertion rod 37 is located on the right side of the pressing rod 35 and directly above the transverse groove 33;

[0090] A force transmission rod 38 is fixed to the bottom surface of the connecting plate and extends downwardly through the upper pad 30 and the stripper plate 31 in sequence. The force transmission rod 38 is located behind the press rod 35 and has a diameter equal to that of the floating rod 15. The press rod 35 is coaxial with the hollow punch 7, and the lower end of the inner cavity of the hollow punch 7 is provided with an annular receiving groove.

[0091] A method for cutting poles with a high-precision loading function comprises the following steps:

[0092] S1. Fix the upper support 29 of the upper die on the punch of the punching machine and ensure that the press rod 35 of the upper die is directly above the ejector rod 14 of the lower die. Figure 17-18As shown, the force transmission rod 38 of the upper die is located directly above the floating rod 15 of the lower die, and the insertion rod 37 of the upper die is located above the wedge-shaped groove 26 of the right push bar 24;

[0093] S2. Preliminary loading of the first pole 1. The specific operation steps are as follows:

[0094] 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;

[0095] 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 and 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;

[0096] S3, precise loading of pole 1, the specific operation steps are as follows:

[0097] 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. Figure 21-22 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;

[0098] 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;

[0099] 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;

[0100] 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;

[0101] 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;

[0102] 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.

[0103] 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.

[0104] 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;

[0105] 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 and 30 As shown;

[0106] 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. Figure 31 to Figure 33 As shown;

[0107] 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;

[0108] 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.

[0109] 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 poles with high-precision loading function, characterized by: It comprises an upper die and a lower die, wherein the lower die comprises a base (8), a lower pad (9) and a concave die plate (10) which are fixedly connected together in sequence from bottom to top, a concave die insert (5) is fixedly provided in the concave die plate (10), and a circular hole (6) penetrating the bottom surface thereof and a small hole (11) located at the rear side of the circular hole (6) are provided in the concave die insert (5); A blind groove is provided on the top surface of the base (8), a first vertical spring (12) is fixedly provided at the bottom of the blind groove, a top end of the first vertical spring (12) is connected to a floating plate (13), a top surface of the floating plate (13) is fixedly provided with a ejector rod (14) which passes through the lower plate (9) upward and extends into the circular hole (6), a vertical spacing between the top surface of the ejector 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) passes through the lower plate (9) upward and extends into the small hole (11); A stop bar (16) arranged longitudinally from front to back is fixedly provided on the top surface of the concave template (10), a longitudinal cylinder (17) arranged longitudinally is fixedly provided on the front end surface of the concave template (10), a 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 extended end, the front push block (18) is located on the front side of the circular hole (6), and a feeding guide rail (19) is also fixedly provided on the top surface of the concave template (10) and is opposite to the front push block (18) on the left and right sides. The end opening of the feeding guide rail (19) is located on the left side of the front push block (18), and the first end opening of the feeding guide rail (19) extends to the left outside the concave template (10); The lower mold further comprises a horizontal cylinder (20) and a vertical plate (21) respectively fixed on the left and right outer end surfaces of the concave template (10), the piston rod of the horizontal cylinder (20) extending to the right, and a left push bar (22) located on the left side of the circular hole (6) is fixed on the extended end, and a V-shaped block (23) in contact with the top surface of the concave template (10) is fixed on the right end of the left push bar (22); a horizontal fixing rod is fixed in the vertical plate (21), and a right push bar (24) is sleeved on the left end of the horizontal fixing rod, and a horizontal spring (25) sleeved on the outside of the horizontal fixing rod is fixed between the right end surface of the right push bar (24) and the left end surface of the vertical plate (21); the left end surface of the right push bar (24) is located above the circular hole (6) to block the right edge of the circular hole (6), and a wedge-shaped groove (26) is also provided on the top surface of the right push bar (24); The upper mold includes an upper support (29), a connecting plate and an upper pad (30) which are fixedly connected together in sequence from top to bottom. A stripper plate (31) is also provided directly below the upper pad (30). A plurality of second vertical springs (32) are fixedly provided between the stripper plate (31) and the upper pad (30). A transverse groove (33) penetrating the left and right end surfaces of the stripper plate (31) 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 surface of the stripper plate (31). A hollow punch (7) is fixed on the bottom surface of the upper support (29) and passes through the connecting plate and the upper pad (30) in sequence downward and extends into the discharge plate (31). The inner cavity of the hollow punch (7) is connected to the transverse groove (33), and a pressing rod (35) is slidably installed in the inner cavity of the hollow punch (7). The lower end of the pressing rod (35) extends downward to the outside of the discharge plate (31). The upper end of the pressing rod (35) is fixedly connected to a third vertical spring (36). The top end of the third vertical spring (36) is fixed in the upper support (29). The elastic force of the third vertical spring (36) is smaller than the elastic force of the first vertical spring (12). A plug rod (37) is fixed on the bottom surface of the upper support (29) and passes through the connecting plate and the upper pad (30) in sequence downwards and extends into the discharge plate (31). The plug rod (37) is located on the right side of the pressing rod (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 passes through the upper pad (30) and the discharge plate (31) in sequence downwards. The force transmission rod (38) is located at the rear side of the pressing rod (35); The diameter of the force transmission rod (38) is equal to the diameter of the floating rod (15); the pressing rod (35) is coaxially arranged with the hollow punch (7), and the lower end of the inner cavity of the hollow punch (7) is provided with an annular receiving groove.

2. The mold for cutting poles with high-precision loading function according to claim 1, characterized in that: The lower die also includes a discharge chute (27) provided between the lower pad (9) and the base (8), the upper end of the discharge chute (27) being connected to the circular hole (6) of the die insert (5), and the lower end of the discharge chute (27) passing through the right end surface of the base (8).

3. The mold for cutting poles with high-precision loading function according to claim 2, characterized in that: A rectangular support block is fixedly provided on the front end surface of the concave template (10), and the cylinder body of the longitudinal cylinder (17) is fixedly provided on the top surface of the rectangular support block.

4. The mold for cutting poles with high-precision loading function according to claim 3, characterized in that: A mounting plate (28) is fixedly provided on the left end surface of the concave template (10), a cylinder body of the horizontal cylinder (20) is fixedly provided on the left end surface of the mounting plate (28), and a piston rod of the horizontal cylinder (20) passes through the mounting plate (28) to the right.

5. The mold for cutting poles with high-precision loading function according to claim 4, characterized in that: The diameter of the circular hole (6) of the die insert (5) is 20.02 mm.

6. The mold for cutting poles with high-precision loading function according to claim 5, characterized in that: A plurality of poles (1) to be cut are sequentially arranged in the feeding guide rail (19), and the pole (1) at the front end is blocked by the forward push block (18).

7. A method for cutting poles with high-precision loading function, using the mold for cutting poles with high-precision loading function according to claim 6, characterized in that: It includes the following steps: S1. Fix the upper support (29) of the upper die on the punch of the punching machine, and ensure that the pressing 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 insert rod (37) of the upper die is located above the wedge groove (26) of the right push bar (24); S2. Preliminary loading of the first pole (1). The specific 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 ejector rod (14) to move downward, and the ejector rod (14) moves in a direction away from the pole (1). When the ejector rod (14) 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 punching machine continues to move downward, the hollow punch (7) applies pressure to the top surface of the circular copper plate (3) of the pole (1). Under the pressure, the edge of the opening of the circular hole (6) cuts the annular shoulder of the pole (1), thereby reducing the diameter of the circular copper plate (3) of 20.4 mm to 20-20.02 mm, thereby producing the desired product. The produced product then passes through the circular hole (6) and the discharge chute (27) in sequence and finally falls to the ground. S8. The worker repeats the operations of steps S2 to S7 multiple times, and can continuously cut off the annular shoulder of the pole (1), thereby producing multiple products accordingly.

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