Punching equipment and hardware side edge punching method based on scrap cleaning

Abstract

The invention relates to the technical field of punching equipment, and discloses punching equipment and a hardware side edge punching method based on scrap cleaning, the punching equipment comprises a main body, a punch and a base, the punch and the base are installed on the main body, the punch is located right above the base, and an assembly table board is installed on the base. By arranging the movable seat, the main driving assembly, the sub-core rods, the auxiliary driving assembly and the positioning clamping assembly, the pipe fitting is supported in the mode that the two sub-core rods are inserted into the pipe fitting, the two sub-core rods are separated after punching and cannot make contact with the punched hole, the abrasion phenomenon caused after the two sub-core rods make contact with burrs is avoided, and the punching efficiency is improved. The service life of the sub-core rod is longer, waste materials cannot be retained on the sub-core rod, when the sub-core rod is separated from a pipe fitting, the movable seat swings towards the two sides, the waste materials can be poured out firstly, then the pipe fitting is discharged, waste material cleaning and respective discharging are achieved, frequent cleaning or removing work is not needed, and the device is more convenient and practical. And the device is suitable for high-frequency large-batch production work of hardware.

Description

Technical Field

[0001] The invention relates to the technical field of punching equipment, in particular to a punching equipment and a hardware side punching method based on waste chip cleaning. Background Art

[0002] The punching process is to place metal materials such as aluminum and steel plates on a hydraulic press for processing, and use special molds to punch holes or other shapes on aluminum, steel plates and other materials to achieve the purpose of processing parts. Figure 2 A hardware component shown in the figure comprises a circular tubular body and a circular hole on the wall of the tube. The circular hole needs to be processed by a punching process during production of the hardware component. Since the punch will generate pressure on the workpiece during the punching process, in order to avoid deformation of the product, a support will be set at the bottom of the punching part of the workpiece. The support used by the existing equipment for the round tube workpiece is generally a round core rod, the outer diameter of the core rod matches the inner diameter of the round tube. When in use, the round tube is sleeved on the rod from one end of the core rod, and the round tube is pulled out from the core rod after punching. However, this type of punching equipment for round tubes has certain shortcomings: first, when punching a hole on the round tube, the edge of the hole is deformed under the action of shear force, resulting in a flange or burr extending into the inner cavity of the round tube. When the punching is completed and the round tube is pulled out, the flange and burr contact and rub against the outer wall of the core rod, which not only causes wear on the outer wall of the core rod and reduces the service life of the core rod, but also requires greater force in the blanking process, which increases the difficulty and may even cause jamming in severe cases; secondly, after punching, the waste material of the existing equipment is generally retained in the cavity of the round tube or the cavity of the core rod, which is not easy to clean, and lacks an efficient cleaning method during high-frequency and large-scale production work. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a punching device and a side punching method for hardware parts based on waste cleaning, which has the advantages of long service life of the core rod, convenient material cutting, and easy cleaning of waste. It solves the problem that burrs wear the core rod during cutting of the existing punching equipment for round tube workpieces and the waste is difficult to clean.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a punching device, comprising a main body, a punch installed on the main body and a base, wherein the punch is located directly above the base, an assembly table is installed on the base, and a movable seat, a main drive assembly, a sub-core rod, an auxiliary drive assembly and a positioning clamping assembly are installed on the assembly table;

[0005] The movable seat is located directly below the punch and is movably mounted on the assembly table. The main drive assembly is in transmission connection with the movable seat, and the main drive assembly is used to drive the movable seat to swing to both sides.

[0006] The positioning and clamping assembly is installed on the top of the movable seat, and the positioning and clamping assembly includes two positioning blocks that are symmetrically arranged and can move toward each other. The positioning and clamping assembly is used to position and clamp the pipe fitting;

[0007] The sub-core rods are provided in two and are symmetrically distributed on both sides of the movable seat, the two sub-core rods are used to position and support the pipe fittings, the auxiliary driving assembly is installed on the assembly table and is transmission-connected to the two sub-core rods, and the auxiliary driving assembly is used to drive the two sub-core rods to move toward each other;

[0008] During processing, the positioning and clamping assembly operates to force the two positioning blocks to approach each other, and initially position the pipe fitting. Then the auxiliary driving assembly operates to force the two sub-core rods to approach each other and insert into the pipe fitting, and secondarily position and support the pipe fitting. During processing, the positioning and clamping assembly operates to clamp and fix the pipe fitting. After processing, the auxiliary driving assembly operates to force the two sub-core rods to move away from each other and detach from the pipe fitting. Then the main driving assembly operates to first drive the movable seat to swing to one side, forcing the waste in the pipe fitting to fall, and then drive the movable seat to swing to the other side. Then the positioning and clamping assembly operates to loosen the pipe fitting, causing the pipe fitting to fall.

[0009] Preferably, a transverse slide groove is provided on the top surface of the movable seat, and the positioning and clamping assembly also includes a first motor fixed on the outside of the movable seat, and a first bidirectional screw is fixed on the output shaft of the first motor, and the first bidirectional screw is located inside the transverse slide groove and is rotatably connected to both ends of the transverse slide groove, and two symmetrically distributed main sliders are threadedly connected to the first bidirectional screw, and the two main sliders are both slidably connected to the transverse slide groove, and two symmetrically distributed auxiliary sliders are also provided between the two main sliders, and the two auxiliary sliders are both slidably connected to the transverse slide groove, and a spring is fixedly connected between the auxiliary slider and the main slider, and the spring and the auxiliary slider are both sleeved on the outside of the first bidirectional screw, and the two positioning blocks are located on the top of the movable seat and are respectively fixedly connected to the two auxiliary sliders.

[0010] Preferably, an arc concave surface is provided on the opposite side of the two positioning blocks, the top edge of the arc concave surface extends to the top surface of the positioning block, the cross-section of the arc concave surface is set to be a minor arc, and guide holes are provided on the sides of the two positioning blocks, the direction of the guide holes is the same as the direction of the horizontal sliding groove, and the guide holes extend to the arc concave surface. A clamping block is fixed on the top of the main sliding block, and the clamping block is inserted into the guide hole.

[0011] Preferably, a longitudinal slide groove is provided on the surface of the assembly table, and the auxiliary driving assembly includes a second motor fixed on the side wall of the assembly table, the second motor output shaft is fixedly connected to a second bidirectional screw, the second bidirectional screw is located inside the longitudinal slide groove and is rotatably connected to both ends of the longitudinal slide groove, and two driving sliders are threadedly connected to the second bidirectional screw, and the two driving sliders are both slidably connected to the longitudinal slide groove, and the tops of the two driving sliders are fixedly connected to mounting seats, the two mounting seats are respectively located on both sides of the movable seat, and the two sub-core rods are respectively installed on the two movable seats.

[0012] Preferably, the sub-core rod is arranged horizontally, one end of the sub-core rod is fixedly connected to the mounting seat, the end of the sub-core rod away from the mounting seat points to between the two positioning blocks, and the end of the sub-core rod away from the mounting seat is provided with a unloading groove, a connecting pin and a connecting hole, the unloading groove extends from the top edge of the end face of the sub-core rod to the bottom edge, the connecting pin and the connecting hole are respectively located on both sides of the unloading groove, and the connecting pin is fixedly connected to the end face of the sub-core rod.

[0013] Preferably, a positioning ring is movably sleeved on both of the sub-core rods, and an adjusting screw is provided on the side of the positioning ring close to the mounting seat. The adjusting screw passes through the mounting seat and is threadedly connected to the mounting seat. One end of the adjusting screw is rotatably connected to the positioning ring, and a screw cap is fixed to the other end of the adjusting screw.

[0014] Preferably, a base shaft is fixedly connected to the bottom of the movable seat, and the base shaft is installed on the top of the assembly table through a bearing seat. A gear is fixedly connected to the end of the base shaft. The main drive assembly includes a first electric push rod fixed to the assembly table, and a rack is fixed to the output end of the first electric push rod. The rack is slidably connected to the assembly table, and the rack is meshed with the gear.

[0015] Preferably, a main material guiding ramp and a secondary material guiding ramp are respectively provided on both sides of the movable seat, and the main material guiding ramp and the secondary material guiding ramp are both fixed on the assembly table through a bracket.

[0016] Preferably, a loading component is also installed on the assembly table, and the loading component is used to transport pipes between the two positioning blocks. The loading component includes an inclined track, which is fixed to the assembly table through a support seat, and the bottom end of the track extends to the top of one of the positioning blocks. A controller is provided on the track near the bottom end, and the controller includes two mounting frames, and the two mounting frames are respectively fixed on both sides of the track, and a movable rod is rotatably connected between the two mounting frames, and a lower baffle and an upper baffle are fixedly connected to the middle part of the movable rod, and the angle between the lower baffle and the upper baffle is an obtuse angle, and a transmission rod is also fixed to the end of the movable rod, and a second electric push rod is also provided on the side of the track, one end of the second electric push rod is rotatably connected to the end of the transmission rod, and the other end of the second electric push rod is rotatably connected to the side wall of the track.

[0017] Compared with the prior art, the present invention provides a punching device and a hardware side punching method based on waste chip cleaning, which has the following beneficial effects:

[0018] 1. This punching equipment and the side punching method of hardware based on waste cleaning, by setting a movable seat, a main drive assembly, a sub-core rod, an auxiliary drive assembly and a positioning clamping assembly, supports the pipe fitting by inserting two sub-core rods into the pipe fitting, and the two sub-core rods are separated after punching and will not contact the punching hole, thereby avoiding the wear caused by contact with burrs, making the service life of the sub-core rod longer, and the waste will not be retained on the sub-core rod. When the sub-core rod is separated from the pipe fitting, the movable seat swings to both sides respectively to pour out the waste first, and then cut the pipe fitting, thereby realizing the cleaning and separate cutting of the waste, without the need for frequent cleaning or removal work, which is more convenient and practical, and suitable for high-frequency and large-scale production of hardware.

[0019] 2. This punching equipment and the side punching method of hardware based on waste chip cleaning, by arranging a positioning ring on the sub-core rod, the second motor drives the two sub-core rods to approach each other when running, and the sub-core rod is inserted into the pipe fitting to support the inside of the pipe fitting, so as to avoid deformation of the pipe fitting caused by the punching pressure, and the positioning ring pushes the pipe fitting after the initial positioning, pushes the pipe fitting to move axially, realizes secondary positioning, and ensures that the punching position is just below the punch. In addition, the two sub-core rods are combined through two sets of connecting pins and connecting holes, which can improve the stability of the sub-core rod, make the sub-core rod not easy to move, and have a better supporting effect.

[0020] 3. This punching equipment and the hardware side punching method based on waste chip cleaning can also adjust the initial position of the positioning ring by rotating the screw cap, which is conducive to positioning the pipe fittings according to different punching requirements and has strong applicability.

[0021] 4. This punching equipment and the side punching method of hardware based on waste cleaning can realize automatic intermittent feeding of pipe fittings by setting a feeding component. By setting a main drive component, a main material ramp and an auxiliary material ramp, after the punching work is completed, the movable seat is driven to swing in different directions, so that the waste can be cleaned and collected first, and then the finished pipe fittings can be collected. There is no need for manual loading and unloading, which improves production efficiency and is suitable for large-scale and efficient production of hardware. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional structure diagram of a punching device of the present invention Figure 1 ;

[0023] Figure 2 It is a structural schematic diagram of the hardware of the present invention;

[0024] Figure 3A three-dimensional structure diagram of a punching device of the present invention Figure 2 ;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the assembly table of the present invention;

[0026] Figure 5 A partial cross-sectional view of the movable seat of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the auxiliary driving assembly of the present invention;

[0028] Figure 7 For the present invention Figure 6 A magnified view of part A;

[0029] Figure 8 It is a schematic diagram of the material unloading state of a punching device of the present invention.

[0030] In the figure: 1, main body; 2, punch; 3, base; 4, assembly table; 41, longitudinal slide; 5, movable seat; 51, transverse slide; 52, base shaft; 53, gear; 54, bearing seat; 6, main drive assembly; 61, first electric push rod; 62, rack; 7, sub-core rod; 71, discharge groove; 72, connecting pin; 73, connecting hole; 74, positioning ring; 75, adjusting screw; 76, screw cap; 8, auxiliary drive assembly; 81, second motor; 82, second bidirectional screw; 83, drive Slider; 84, mounting seat; 9, positioning clamping assembly; 91, positioning block; 92, first motor; 93, first bidirectional screw; 94, main slider; 95, auxiliary slider; 96, spring; 97, arc concave surface; 98, guide hole; 99, clamping block; 10, main material guide ramp; 11, auxiliary material guide ramp; 12, loading assembly; 121, track; 122, mounting frame; 123, movable rod; 124, lower baffle; 125, upper baffle; 126, transmission rod; 127, second electric push rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a punching device and a hardware side punching method based on waste chip cleaning.

[0033] Example 1: Please refer to Figure 1-Figure 4A punching device comprises a main body 1, a punch 2 and a base 3 mounted on the main body 1, wherein the punch 2 is located directly above the base 3, an assembly table 4 is mounted on the base 3, and a movable seat 5, a main drive assembly 6, a sub-core rod 7, an auxiliary drive assembly 8 and a positioning clamping assembly 9 are mounted on the assembly table 4;

[0034] The movable seat 5 is located directly below the punch 2 and is movably mounted on the assembly table 4. The main drive assembly 6 is in transmission connection with the movable seat 5. The main drive assembly 6 is used to drive the movable seat 5 to swing to both sides.

[0035] The positioning and clamping assembly 9 is installed on the top of the movable seat 5. The positioning and clamping assembly 9 includes two positioning blocks 91 that are symmetrically arranged and can move toward each other. The positioning and clamping assembly 9 is used to position and clamp the pipe fitting.

[0036] The sub-core rods 7 are provided in two and are symmetrically distributed on both sides of the movable seat 5. The two sub-core rods 7 are used to position and support the pipe fittings. The auxiliary driving assembly 8 is installed on the assembly table 4 and is transmission-connected with the two sub-core rods 7. The auxiliary driving assembly 8 is used to drive the two sub-core rods 7 to move toward each other.

[0037] During processing, the positioning and clamping assembly 9 operates to force the two positioning blocks 91 to approach each other, and initially position the pipe fitting. Then the auxiliary driving assembly 8 operates to force the two sub-core rods 7 to approach each other and insert into the pipe fitting, and secondarily position and support the pipe fitting. During processing, the positioning and clamping assembly 9 operates to clamp and fix the pipe fitting. After processing, the auxiliary driving assembly 8 operates to force the two sub-core rods 7 to move away from each other and detach from the pipe fitting. Then the main driving assembly 6 operates to first drive the movable seat 5 to swing to one side, forcing the waste in the pipe fitting to fall, and then drive the movable seat 5 to swing to the other side. Then the positioning and clamping assembly 9 operates to loosen the pipe fitting, causing the pipe fitting to fall.

[0038] The pipe fitting is a round tube with two transparent ends. The diameter of the sub-core rod 7 matches the inner diameter of the pipe fitting to be processed. The two sub-core rods 7 are inserted into the pipe fitting and the end portions thereof are fitted together. The fitting points of the ends are just arranged below the punch 2. That is, the fitting points of the ends of the two sub-core rods 7 are the punching portions of the pipe fitting.

[0039] When in use, the pipe fitting is placed between the two positioning blocks 91, and the positioning clamping assembly 9 is started. When the positioning clamping assembly 9 is running, the two positioning blocks 91 are driven to approach each other to perform preliminary positioning of the round pipe, and then the auxiliary driving assembly 8 is started. The auxiliary driving assembly 8 drives the two sub-core rods 7 to approach each other and insert them into the pipe fitting until the ends of the two sub-core rods 7 are fitted together, thereby positioning and supporting the pipe fitting for the second time, and then the positioning clamping assembly 9 is operated again to clamp and fix the pipe fitting, and then the main body 1 is operated to force the punch 2 to move downward to punch the top of the pipe fitting, and the waste formed by the punching falls between the two sub-core rods 7. During the punching process, after the punching is completed, the auxiliary driving assembly 8 is operated to drive the two sub-core rods 7 to move away from each other and be pulled out of the pipe fitting. Since the two sub-core rods 7 do not pass through the punching part when moving, the sub-core rods 7 will not contact the flange and burrs of the punching edge. Then the main driving assembly 6 is started. When the main driving assembly 6 is operated, it first drives the movable seat 5 to swing to one side, so that the pipe fitting is tilted, and the waste in the pipe fitting falls from one end of the pipe fitting. Then the main driving assembly 6 drives the movable seat 5 to swing to the other side, causing the pipe fitting to tilt to that side, and at this time, the positioning clamping assembly 9 is started to loosen the pipe fitting, and the pipe fitting falls under the action of gravity;

[0040] By setting a movable seat 5, a main drive assembly 6, a sub-core rod 7, an auxiliary drive assembly 8 and a positioning clamping assembly 9, the pipe fitting is supported by inserting two sub-core rods 7 into the pipe fitting, and the two sub-core rods 7 are separated after punching and will not contact the punching hole, thereby avoiding the wear caused by contact with burrs, making the service life of the sub-core rod 7 longer, and waste materials will not be retained on the sub-core rod 7. When the sub-core rod 7 is separated from the pipe fitting, the movable seat 5 swings to both sides to pour out the waste materials first, and then the pipe fitting is cut, thereby realizing the cleaning and separate cutting of waste materials, without the need for frequent cleaning or removal work, which is more convenient and practical, and is suitable for high-frequency and large-scale production of hardware.

[0041] Example 2: See Figure 5, which is different from the above-mentioned embodiment, a transverse slide groove 51 is provided on the top surface of the movable seat 5, and the positioning and clamping assembly 9 also includes a first motor 92 fixed on the outside of the movable seat 5, and the output shaft of the first motor 92 is fixed with a first bidirectional screw 93, and the first bidirectional screw 93 is located inside the transverse slide groove 51 and is rotatably connected to both ends of the transverse slide groove 51, and the first bidirectional screw 93 is threadedly connected to two symmetrically distributed main sliders 94, and the two main sliders 94 are both slidably connected to the transverse slide groove 51, and two symmetrically distributed auxiliary sliders 95 are further provided between the two main sliders 94, and the two auxiliary sliders 95 are both slidably connected to the transverse slide groove 51, and the auxiliary slider 95 is connected to the main slider 94. A spring 96 is fixedly connected between the two sliders 95, and the spring 96 and the auxiliary slider 95 are both sleeved on the outside of the first bidirectional screw 93. The two positioning blocks 91 are both located at the top of the movable seat 5 and are respectively fixedly connected to the two auxiliary sliders 95. The two positioning blocks 91 are provided with arc concave surfaces 97 on the opposite sides, and the top edge of the arc concave surface 97 extends to the top surface of the positioning block 91. The cross-section of the arc concave surface 97 is set to be an inferior arc. Guide holes 98 are provided on the sides of the two positioning blocks 91. The direction of the guide hole 98 is the same as that of the horizontal slide groove 51. The guide hole 98 extends to the arc concave surface 97. A clamping block 99 is fixed on the top of the main slider 94, and the clamping block 99 is inserted into the guide hole 98.

[0042] The arc radius of the arc concave surface 97 matches the outer diameter of the pipe to be processed, the first bidirectional screw 93 is provided with two symmetrical threads with opposite rotation directions, the two main sliders 94 are matched with the two threads respectively, the auxiliary slider 95 is provided with a through hole, the auxiliary slider 95 is sleeved on the first bidirectional screw 93 through the through hole, and the diameter of the through hole is larger than the diameter of the first bidirectional screw 93;

[0043] When in use, place the pipe between the two positioning blocks 91 and start the first motor 92. When the first motor 92 is running, it drives the first bidirectional screw 93 to rotate. When the first bidirectional screw 93 rotates, it drives the two main sliders 94 to move toward each other in the horizontal slide groove 51. When the main slider 94 moves, it drives the spring 96, the auxiliary slider 95 and the positioning block 91 on the top of the auxiliary slider 95 to move, so that the two positioning blocks 91 are close to each other until the two positioning blocks 91 contact each other. At this time, the arc concave surfaces 97 on the two positioning blocks 91 are just in position, and the two circular concave surfaces 97 on the two positioning blocks 91 are just in position. The arc centers of the arc concave surfaces 97 coincide with each other, and the pipe fitting is just limited to the area between the two arc concave surfaces 97, so as to achieve preliminary positioning. During the preliminary positioning, the position to be punched on the top of the pipe fitting is exposed. After the pipe fitting is positioned for the second time by the quilt core rod 7, the first motor 92 continues to drive the first bidirectional screw 93 to rotate, and the two main sliders 94 continue to approach each other and compress the spring 96. At the same time, when the main slider 94 moves, it drives the clamping block 99 to move. The clamping block 99 is inserted into the guide hole 98 until it contacts the pipe fitting. The two clamping blocks 99 clamp the pipe fitting together, so as to achieve the fixation of the pipe fitting.

[0044] By setting the positioning and clamping assembly 9 to include a first motor 92, a positioning block 91 and a clamping block 99, the first motor 92 can drive the main slider 94 to shift in two stages when in operation. In the first stage of displacement, only the positioning block 91 is driven to initially position the pipe fitting, and in the second stage of displacement, the clamping block 99 is driven to contact the pipe fitting to clamp the pipe fitting, thereby meeting the positioning and fixing requirements of the pipe fitting and improving the accuracy and stability during punching.

[0045] Example 3, see Figure 6 and Figure 7, which is different from the above-mentioned embodiment, a longitudinal slide groove 41 is provided on the surface of the assembly table 4, and the auxiliary driving component 8 includes a second motor 81 fixed to the side wall of the assembly table 4, and the output shaft of the second motor 81 is fixedly connected with a second bidirectional screw 82, and the second bidirectional screw 82 is located inside the longitudinal slide groove 41 and is rotatably connected to the two ends of the longitudinal slide groove 41, and two driving sliders 83 are threadedly connected to the second bidirectional screw 82, and the two driving sliders 83 are both slidably connected to the longitudinal slide groove 41, and the tops of the two driving sliders 83 are fixedly connected with mounting seats 84, and the two mounting seats 84 are respectively located on both sides of the movable seat 5, and the two sub-core rods 7 are respectively installed on the two movable seats 5, and the sub-core rod 7 is horizontally arranged, and one end of the sub-core rod 7 is connected to the mounting seat 84 is fixedly connected, one end of the sub-core rod 7 away from the mounting seat 84 points to between the two positioning blocks 91, and one end of the sub-core rod 7 away from the mounting seat 84 is provided with a discharge groove 71, a connecting pin 72 and a connecting hole 73, the discharge groove 71 extends from the top edge of the end face of the sub-core rod 7 to the bottom edge, the connecting pin 72 and the connecting hole 73 are respectively located on both sides of the discharge groove 71, the connecting pin 72 is fixedly connected to the end face of the sub-core rod 7, and the two sub-core rods 7 are movably sleeved with a positioning ring 74, and the positioning ring 74 is provided with an adjusting screw 75 on the side close to the mounting seat 84, the adjusting screw 75 passes through the mounting seat 84 and is threadedly connected to the mounting seat 84, one end of the adjusting screw 75 is rotatably connected to the positioning ring 74, and the other end of the adjusting screw 75 is fixed with a screw cap 76;

[0046] The second bidirectional screw 82 is provided with two symmetrical threads with opposite rotation directions, the two driving sliders 83 are matched with the two threads respectively, the width of the discharge groove 71 is larger than the diameter of the hole to be punched, and the diameter of the connecting pin 72 is the same as the inner diameter of the connecting hole 73;

[0047] When in use, the second motor 81 is started, and the second motor 81 drives the second bidirectional screw 82 to rotate after it runs. When the second bidirectional screw 82 rotates, it drives the two driving slide blocks 83 to move toward each other along the longitudinal slide groove 41. When the driving slide block 83 moves, it drives the mounting seat 84 and the sub-core rod 7 to move. At this time, the two sub-core rods 7 are close to each other and just inserted into the initially positioned pipe fittings. During the process of the sub-core rod 7 being inserted into the pipe fittings, the end of the pipe fittings contacts the positioning ring 74 on the moving sub-core rod 7, and the positioning ring 74 pushes the pipe fittings to realize the axial movement of the pipe fittings. The positioning ensures that the punching position is located directly below the punch 2. When the positioning of the pipe is completed, the end faces of the two sub-core rods 7 are fitted together, and the discharge grooves 71 at the ends of the two sub-core rods 7 are merged to form a channel for accommodating the punching waste. In addition, the connecting pin 72 on one of the sub-core rods 7 is just inserted into the connecting hole 73 on the other sub-core rod 7 to achieve the connection of the two sub-core rods 7. In actual application, the adjusting screw 75 can be rotated by rotating the screw cap 76, and then the positioning ring 74 is pushed to adjust the position of the positioning ring 74 on the sub-core rod 7.

[0048] By setting a positioning ring 74 on the sub-core rod 7, the second motor 81 drives the two sub-core rods 7 to approach each other when running. The sub-core rod 7 is inserted into the pipe fitting to support the inside of the pipe fitting, thereby avoiding deformation of the pipe fitting caused by the punching pressure. The positioning ring 74 pushes the pipe fitting after the initial positioning, pushes the pipe fitting to move axially, and realizes secondary positioning to ensure that the punching position is just below the punch 2. In addition, the two sub-core rods 7 are combined through two groups of connecting pins 72 and connecting holes 73, which can improve the stability of the sub-core rod 7. The sub-core rod 7 is not easy to move and the supporting effect is better. By rotating the screw cap 76, the initial position of the positioning ring 74 can also be adjusted, which is conducive to positioning the pipe fitting according to different punching requirements and has strong applicability.

[0049] Example 4, see Figure 4 and Figure 5 , which is different from the above embodiment, a base shaft 52 is fixedly connected to the bottom of the movable seat 5, and the base shaft 52 is installed on the top of the assembly table 4 through a bearing seat 54. A gear 53 is fixedly connected to the end of the base shaft 52. The main drive assembly 6 includes a first electric push rod 61 fixed on the assembly table 4, and a rack 62 is fixed to the output end of the first electric push rod 61. The rack 62 is slidably connected to the assembly table 4, and the rack 62 is meshed with the gear 53. A main material ramp 10 and an auxiliary material ramp 11 are respectively provided on both sides of the movable seat 5, and the main material ramp 10 and the auxiliary material ramp 11 are fixed to the assembly table 4 through a bracket.

[0050] Among them, two bearing seats 54 are provided and installed at both ends of the base shaft 52. When in use, the electric push rod is started, and the telescopic drive rack 62 of the electric push rod moves in different directions, thereby driving the gear 53 to rotate in different directions. When the gear 53 rotates, it drives the base shaft 52 to rotate, thereby driving the movable seat 5 to swing around the base shaft 52. After the punching is completed, the sub-core rod 7 first moves and detaches from the pipe fitting, and then the movable seat 5 swings to one side, causing the pipe fitting to tilt, and the waste in the pipe fitting falls from the end of the pipe fitting to the auxiliary material guide ramp 11, and the waste is collected uniformly. After the waste is cleaned, the movable seat 5 swings to the other side again, and the positioning clamping assembly 9 releases the pipe fitting at the same time, and the pipe fitting can fall to the main material ramp 10 under its own weight;

[0051] By providing the main drive assembly 6, the main material guide ramp 10 and the auxiliary material guide ramp 11, after the punching work is completed, the movable seat 5 is driven to swing in different directions, so that the waste can be cleaned and collected first, and then the finished pipes can be collected, which is more efficient and convenient.

[0052] Example 5, see Figure 4 and Figure 8 , which is different from the above embodiment, a feeding assembly 12 is further installed on the assembly table 4, and the feeding assembly 12 is used to transport pipe fittings between the two positioning blocks 91. The feeding assembly 12 includes an inclined track 121, and the track 121 is fixed to the assembly table 4 through a support seat. The bottom end of the track 121 extends to the top of one of the positioning blocks 91. A controller is provided near the bottom end of the track 121, and the controller includes two mounting brackets 122, and the two mounting brackets 122 are respectively fixed to the track 12 On both sides of the track 121, a movable rod 123 is rotatably connected between the two mounting frames 122, a lower baffle 124 and an upper baffle 125 are fixedly connected to the middle of the movable rod 123, and the angle between the lower baffle 124 and the upper baffle 125 is an obtuse angle. A transmission rod 126 is also fixed to the end of the movable rod 123, and a second electric push rod 127 is also provided on the side of the track 121, one end of the second electric push rod 127 is rotatably connected to the end of the transmission rod 126, and the other end of the second electric push rod 127 is rotatably connected to the side wall of the track 121.

[0053] The width of the track 121 is consistent with the length of the pipe to be processed. The pipes to be processed are arranged on the track 121 in sequence, and the pipe at the bottom is blocked by the lower baffle 124. When in use, the second electric push rod 127 is started, and the second electric push rod 127 first extends and then pushes the transmission rod 126 to make the transmission rod 126 swing, thereby driving the movable rod 123 to rotate a certain angle. When the movable rod 123 rotates, it drives the lower baffle 124 and the upper baffle 125 to rotate a certain angle at the same time. When the lower baffle 124 rotates, it does not Then, the bottommost pipe is restricted, and the pipe rolls between the two positioning blocks 91 under gravity, and the upper baffle 125 rotates to block the penultimate pipe to prevent it from rolling down together, and then the second electric push rod 127 is started again, and the second electric push rod 127 contracts to drive the movable rod 123 to rotate in the opposite direction, so that the lower baffle 124 and the upper baffle 125 are reset, and the upper baffle 125 is reset to release the position restriction of each pipe, and each pipe rolls down and is blocked by the reset lower baffle 124, and the above operation is repeated;

[0054] By providing the feeding assembly 12, automatic intermittent feeding of pipe fittings can be achieved without manual feeding, thereby improving production efficiency and being suitable for high-efficiency mass production of hardware.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching device, comprising a main body, a punch mounted on the main body and a base, wherein the punch is located directly above the base, and is characterized in that: An assembly table is installed on the base, and a movable seat, a main drive assembly, a sub-core rod, an auxiliary drive assembly and a positioning clamping assembly are installed on the assembly table; The movable seat is located directly below the punch and is movably mounted on the assembly table. The main drive assembly is in transmission connection with the movable seat, and the main drive assembly is used to drive the movable seat to swing to both sides. The positioning and clamping assembly is installed on the top of the movable seat, and the positioning and clamping assembly includes two positioning blocks that are symmetrically arranged and can move toward each other. The positioning and clamping assembly is used to position and clamp the pipe fitting; The sub-core rods are provided in two and are symmetrically distributed on both sides of the movable seat, the two sub-core rods are used to position and support the pipe fittings, the auxiliary driving assembly is installed on the assembly table and is transmission-connected to the two sub-core rods, and the auxiliary driving assembly is used to drive the two sub-core rods to move toward each other; During processing, the positioning and clamping assembly operates to force the two positioning blocks to approach each other, and initially position the pipe fitting. Then the auxiliary driving assembly operates to force the two sub-core rods to approach each other and insert into the pipe fitting, and secondarily position and support the pipe fitting. During processing, the positioning and clamping assembly operates to clamp and fix the pipe fitting. After processing, the auxiliary driving assembly operates to force the two sub-core rods to move away from each other and detach from the pipe fitting. Then the main driving assembly operates to first drive the movable seat to swing to one side, forcing the waste in the pipe fitting to fall, and then drive the movable seat to swing to the other side. Then the positioning and clamping assembly operates to loosen the pipe fitting, causing the pipe fitting to fall.

2. A punching device according to claim 1, characterized in that: A transverse slide groove is provided on the top surface of the movable seat, and the positioning and clamping assembly also includes a first motor fixed to the outside of the movable seat, and a first bidirectional screw is fixed to the output shaft of the first motor, and the first bidirectional screw is located inside the transverse slide groove and is rotatably connected to both ends of the transverse slide groove, and two symmetrically distributed main sliders are threadedly connected to the first bidirectional screw, and the two main sliders are slidably connected to the transverse slide groove, and two symmetrically distributed auxiliary sliders are provided between the two main sliders, and the two auxiliary sliders are slidably connected to the transverse slide groove, a spring is fixedly connected between the auxiliary slider and the main slider, and the spring and the auxiliary slider are both sleeved on the outside of the first bidirectional screw, and the two positioning blocks are located on the top of the movable seat and are respectively fixedly connected to the two auxiliary sliders.

3. A punching device according to claim 2, characterized in that: An arc concave surface is provided on one side opposite to the two positioning blocks, the top edge of the arc concave surface extends to the top surface of the positioning block, the cross-section of the arc concave surface is set to be a minor arc, guide holes are provided on the sides of the two positioning blocks, the direction of the guide holes is the same as that of the horizontal sliding groove, the guide holes extend to the arc concave surface, a clamping block is fixed on the top of the main sliding block, and the clamping block is inserted into the guide hole.

4. A punching device according to claim 1, characterized in that: A longitudinal slide groove is provided on the surface of the assembly table, and the auxiliary driving assembly includes a second motor fixed on the side wall of the assembly table, the second motor output shaft is fixedly connected to a second bidirectional screw, the second bidirectional screw is located inside the longitudinal slide groove and is rotatably connected to both ends of the longitudinal slide groove, and two driving sliders are threadedly connected to the second bidirectional screw, and the two driving sliders are both slidably connected to the longitudinal slide groove, and the tops of the two driving sliders are fixedly connected to mounting seats, the two mounting seats are respectively located on both sides of the movable seat, and the two sub-core rods are respectively installed on the two movable seats.

5. A punching device according to claim 4, characterized in that: The sub-core rod is arranged horizontally, one end of the sub-core rod is fixedly connected to the mounting seat, the end of the sub-core rod away from the mounting seat points to between the two positioning blocks, and the end of the sub-core rod away from the mounting seat is provided with a unloading groove, a connecting pin and a connecting hole, the unloading groove extends from the top edge of the end face of the sub-core rod to the bottom edge, the connecting pin and the connecting hole are respectively located on both sides of the unloading groove, and the connecting pin is fixedly connected to the end face of the sub-core rod.

6. A punching device according to claim 5, characterized in that: A positioning ring is movably sleeved on the two sub-core rods, and an adjusting screw is provided on the side of the positioning ring close to the mounting seat. The adjusting screw passes through the mounting seat and is threadedly connected to the mounting seat. One end of the adjusting screw is rotatably connected to the positioning ring, and a screw cap is fixed to the other end of the adjusting screw.

7. A punching device according to claim 1, characterized in that: A base shaft is fixedly connected to the bottom of the movable seat, and the base shaft is installed on the top of the assembly table through a bearing seat. A gear is fixedly connected to the end of the base shaft. The main drive assembly includes a first electric push rod fixed on the assembly table, and a rack is fixed to the output end of the first electric push rod. The rack is slidably connected to the assembly table, and the rack is meshed with the gear.

8. A punching device according to claim 1, characterized in that: A main material guide ramp and an auxiliary material guide ramp are respectively arranged on both sides of the movable seat, and the main material guide ramp and the auxiliary material guide ramp are both fixed on the assembly table through a bracket.

9. A punching device according to claim 1, characterized in that: A loading component is also installed on the assembly table, and the loading component is used to transport pipe fittings between the two positioning blocks. The loading component includes an inclined track, which is fixed to the assembly table through a support seat, and the bottom end of the track extends to the top of one of the positioning blocks. A controller is provided on the track near the bottom end, and the controller includes two mounting frames, and the two mounting frames are respectively fixed on both sides of the track. A movable rod is rotatably connected between the two mounting frames, and a lower baffle and an upper baffle are fixedly connected to the middle part of the movable rod, and the angle between the lower baffle and the upper baffle is an obtuse angle. A transmission rod is also fixed to the end of the movable rod, and a second electric push rod is also provided on the side of the track, and one end of the second electric push rod is rotatably connected to the end of the transmission rod, and the other end of the second electric push rod is rotatably connected to the side wall of the track.

10. A method for punching holes on the side of hardware based on waste cleaning, characterized in that: The hardware side punching method based on waste chip cleaning uses a punching device as described in any one of claims 1-9.

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