Trimming and punching die capable of automatically receiving materials and machining process of trimming and punching die

Abstract

The invention discloses an automatic material receiving trimming and punching die and a machining process thereof, and relates to the technical field of dies, the automatic material receiving trimming and punching die comprises a lower die, the lower die is provided with a bearing seat used for bearing a main body part of a workpiece, and the two sides of the bearing seat are symmetrically provided with a plurality of bearing cylinders used for bearing to-be-cut parts of the workpiece; outer cutters are symmetrically arranged on the two sides of each bearing cylinder. The upper die comprises an upper die plate and an upper die base which are parallel to each other and are fixedly connected, a plurality of annular pressing cylinders corresponding to the bearing cylinders in position are arranged on the upper die base in a floating mode, and the annular pressing cylinders are used for pressing the to-be-cut parts of the workpieces on the bearing cylinders; according to the scheme, the inner cutter used for inner circle punching and the conical cutter used for outer circle edge cutting are integrally integrated with the outer cutter for shearing, multi-procedure machining can be completed without transferring a workpiece, the positioning deviation of procedure switching is avoided, the machining efficiency is improved, the machining cost is reduced, and the machining efficiency is improved. The coaxiality precision of inner and outer circles is greatly improved, and the rejection rate is reduced.

Description

Technical Field

[0001] This invention relates to an automatic material receiving cutting and punching die and its processing technology, belonging to the field of die technology. Background Technology

[0002] In the mass production of ring-shaped workpieces (such as mechanical transmission gaskets and electronic component bases), the processes of workpiece positioning, inner hole punching, outer circle trimming, and finished product unloading must be completed sequentially. Existing processing methods often suffer from low efficiency and poor precision. Traditional processes often employ multi-station step-by-step processing, first completing the inner hole machining using a punching die, and then transferring it to a trimming device for outer circle cutting. During the process switching, the workpiece positioning reference is prone to deviation, resulting in excessive coaxiality errors between the inner and outer circles, and the scrap rate is generally higher than 5%.

[0003] While existing integrated molds attempt to integrate punching and trimming functions, they have shortcomings in key structural designs: First, workpiece positioning relies on fixed stops, which cannot adapt to blanks of different thicknesses or slight deformations, and workpiece misalignment is prone to occur during mold closing, affecting processing accuracy; Second, the cutting mechanism mostly uses ordinary spring drive, which has poor elasticity stability, which not only easily leads to incomplete outer circle trimming and burrs, but also requires manual subsequent grinding, increasing process costs; Third, the finished product unloading process lacks automated design, and the ring workpiece must be manually removed from the mold after mold opening, which is not only inefficient, but also poses a safety hazard of fingers being pinched by the mold.

[0004] Furthermore, although some molds have been equipped with simple ejection structures, improper control of the ejection force can easily cause workpiece deformation, and they cannot be linked with external receiving devices, making it difficult to integrate into automated production lines. Therefore, developing an integrated edge-cutting and punching mold that can achieve precise positioning, stable cutting, and automatic ejection and receiving has become a key requirement for solving the problem of efficient and precise production of ring-shaped workpieces. Summary of the Invention

[0005] To address the aforementioned technical problems, the objective of this invention is to propose an automatic material receiving edge-cutting and punching die and its processing technology.

[0006] The technical solution of this invention is implemented as follows: an automatic receiving edge-cutting and punching die, comprising...

[0007] The lower die is provided with a support seat for supporting the main body of the workpiece. Multiple support cylinders for supporting the part of the workpiece to be cut are symmetrically arranged on both sides of the support seat. Each support cylinder is symmetrically provided with an external cutting blade on both sides.

[0008] The upper mold includes an upper template and an upper mold base that are parallel to each other and fixedly connected. Multiple annular pressure cylinders corresponding to the positions of the support cylinders are floating on the upper mold base. The annular pressure cylinders are used to press the part of the workpiece to be cut onto the support cylinder. Each annular pressure cylinder has an inner cutting blade and a clamping cylinder on its inner and outer sides, respectively. The inner cutting blade is used to cut the inner circular residual material of the part of the workpiece to be cut. The lower end of the clamping cylinder has a tapered cutting blade, which shears against the outer cutting blade to cut the edge of the part of the workpiece to be cut. The inner wall of the clamping cylinder is interference-fitted with the outer wall of the cut workpiece to clamp the finished workpiece.

[0009] The stripping assembly, mounted on the upper die base, is used to drive the annular pressure cylinder to move vertically, thereby ejecting the finished workpiece from the clamping cylinder.

[0010] The receiving assembly is located on the edge of the upper mold base and is used to receive the ejected finished workpiece.

[0011] Preferably, the lower surface of the upper mold base is provided with a plurality of blind holes, the positions of the plurality of blind holes corresponding to the positions of the annular pressure cylinder, and a first spring is provided in each blind hole, the top end of the first spring abutting against the bottom of the blind hole, and the bottom end of the first spring abutting against the upper surface of the annular pressure cylinder.

[0012] Preferably, the top surface of the bearing cylinder is provided with a positioning groove for positioning the part of the workpiece to be cut, and the bottom surface of the annular pressure cylinder is provided with a conical positioning part that matches the part of the workpiece to be cut.

[0013] Preferably, the stripping assembly includes a floating plate, a guide column, and a first cylinder. The floating plate is vertically and flexibly disposed on the upper side of the upper mold base. One end of the guide column is connected and fixed to the bottom of the floating plate, and the other end of the guide column passes through the upper mold base and is fixed to the top surface of the annular pressure cylinder. The first cylinder is disposed on the floating plate, and the telescopic end of the first cylinder cooperates with the bottom surface of the upper mold plate to drive the floating plate to rise and fall.

[0014] Preferably, a position sensing component is provided on one side of the first cylinder. The position sensing component includes a mounting bracket, a first position sensor, a second position sensor, a guide seat, a moving rod, a first contact block, a second contact block, and a connector. The mounting bracket is fixed to the side wall of the first cylinder. The first and second position sensors are both fixed on the mounting bracket. Two guide seats are provided, and the two guide seats are respectively horizontally fixed on the upper and lower sides of the mounting bracket. The two ends of the moving rod pass through the two guide seats and slide with the guide seats. The first and second contact blocks are both fixed on the guide seats, and the positions of the first and second contact blocks correspond to the positions of the first and second position sensors. One end of the connector is fixed to the telescopic end of the first cylinder, and the other end is fixed to the top of the moving rod. The first cylinder is used to drive the moving rod to rise or fall, so that the first contact block contacts the first position sensor or the second contact block contacts the second position sensor.

[0015] When the first contact block contacts the first position sensor, the material ejection assembly is in the material ejection state; when the second contact block contacts the second position sensor, the material ejection assembly is in the non-material ejection state.

[0016] Preferably, the receiving assembly includes a support frame, a movable frame, a receiving tray, and a second cylinder; the support frame is fixed to the side wall of the upper mold base, the movable frame is slidably disposed within the support frame in a horizontal direction, a rotating shaft is fixedly disposed at the bottom of the receiving tray, the two ends of the rotating shaft penetrate through the two side walls of the movable frame and rotate in cooperation with the two side walls of the movable frame, and the second cylinder is fixed to the support frame and is used to drive the movable frame to move;

[0017] When the upper and lower molds open, the second cylinder drives the moving frame to extend into the bottom of the upper mold to receive the cut workpiece; when the upper and lower molds close, the second cylinder drives the moving frame to exit the bottom of the upper mold.

[0018] Preferably, both sides of the support frame are provided with horizontally oriented racks, and both ends of the rotating shaft are fixedly provided with gears that mesh with the racks. Multiple support rods are horizontally arranged at the bottom of the moving frame near the upper mold. When the moving frame moves towards the upper mold, the gears mesh with the racks in a counterclockwise direction, causing the receiving tray to gradually become horizontal. When the moving frame moves away from the upper mold, the gears mesh with the racks in a clockwise direction, causing the receiving tray to gradually become tilted outward.

[0019] Preferably, it further includes a floating pressure assembly, which includes a fixed cylinder, a floating pressure column, and a second spring. The fixed cylinder is fixed on the upper mold base and has its opening facing downward. The second spring is disposed inside the fixed cylinder. The upper end of the floating pressure column extends into the fixed cylinder and abuts against the second spring. The lower end of the floating pressure column abuts against the main body of the workpiece and presses the main body of the workpiece firmly onto the support seat.

[0020] Preferably, a mold closing guide sleeve is fixedly provided on the upper mold base, and a mold closing guide post is provided on the lower mold corresponding to the position of the mold closing guide sleeve, and the mold closing guide sleeve and the mold closing guide post are guided and engaged.

[0021] This invention also provides a processing technology for an automatic receiving edge-cutting and punching die, comprising the following steps:

[0022] S1. Place the workpiece on the lower mold, so that the main body of the workpiece fits against the support seat, and place the part to be cut into the positioning groove of the support cylinder to complete the positioning.

[0023] S2. The upper die moves down, the annular pressure cylinder presses the part of the workpiece to be cut, and the floating pressure assembly presses the main body of the workpiece.

[0024] S3. The inner cutting blade cuts the inner circular residual material of the part to be cut on the workpiece, and the conical cutting blade of the clamping cylinder and the outer cutting blade shear each other to complete the cutting edge.

[0025] S4. The lower mold moves upward, and the clamping cylinder carries the finished workpiece away from the lower mold;

[0026] S5. The moving frame of the receiving component moves into the bottom of the upper mold, the receiving tray turns to a horizontal state below the finished workpiece, the stripping component drives the annular pressure cylinder to push out the finished workpiece, and the finished product falls onto the receiving tray.

[0027] S6. Move the frame out of the bottom of the upper mold, and the receiving tray tilts to allow the finished workpiece to slide down, completing the material collection.

[0028] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0029] 1. This invention integrates the functions of an inner cutting tool for punching inner circles and a tapered cutting tool and an outer cutting tool for trimming outer circles, allowing the workpiece to complete multiple processing steps without transfer. This avoids positioning deviations during process switching, significantly improves the coaxiality accuracy of inner and outer circles, and reduces the scrap rate.

[0030] 2. The tapered cutter and the outer cutter work together in a shearing combination, and the upper die stamping power achieves the cutting. The cutting force is stable and sufficient, which can completely cut off the part of the workpiece to be cut, reduce the generation of burrs, eliminate the need for manual subsequent grinding, and reduce process costs.

[0031] 3. By linking the stripping and receiving components, the finished workpiece can be automatically ejected, received, and slid down for collection without manual intervention. This not only improves processing efficiency but also eliminates the safety hazard of fingers being pinched. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0033] Appendix Figure 1 This is a schematic diagram of the structure of an automatic receiving edge-cutting and punching die according to the present invention;

[0034] Appendix Figure 2 This is a schematic diagram of the material receiving component of an automatic material receiving edge-cutting and punching die according to the present invention;

[0035] Appendix Figure 3 This is a schematic diagram of the lower mold structure described in this invention;

[0036] Appendix Figure 4 This is a schematic diagram of the upper mold described in this invention;

[0037] Appendix Figure 5 This is a cross-sectional view of the upper mold described in this invention;

[0038] Appendix Figure 6 For the appendix Figure 5 Enlarged view of point A in the middle;

[0039] Appendix Figure 7 This is a schematic diagram of the position sensing component described in this invention;

[0040] Appendix Figure 8 This is an exploded view of the annular pressure cylinder and the upper mold as described in this invention;

[0041] Appendix Figure 9 This is a schematic diagram of the material receiving assembly described in this invention;

[0042] Appendix Figure 10 This is a schematic diagram of the receiving assembly of the present invention from another angle;

[0043] Appendix Figure 11 This is a schematic diagram of the structure of the bearing cylinder described in this invention;

[0044] Appendix Figure 12 This is a schematic diagram of the annular pressure cylinder described in this invention;

[0045] Appendix Figure 13 This is a schematic diagram of the structure of the workpiece described in this invention.

[0046] In the diagram: 1. Lower mold; 11. Support seat; 12. Support cylinder; 121. Positioning groove; 13. External cutter; 14. Mold closing guide pillar;

[0047] 2. Upper mold; 21. Upper template; 22. Upper mold base; 221. Annular pressure cylinder; 2211. Conical positioning part; 222. Inner cutter; 223. Clamping cylinder; 2231. Conical cutter; 224. Blind hole; 2241. First spring; 225. Mold closing guide sleeve;

[0048] 3. Unloading assembly; 31. Floating plate; 32. Guide column; 33. First cylinder;

[0049] 4. Receiving assembly; 41. Support frame; 411. Rack; 42. Moving frame; 43. Receiving tray; 431. Rotating shaft; 4311. Gear; 44. Second cylinder;

[0050] 5. Position sensing assembly; 51. Mounting bracket; 52. First position sensor; 53. Second position sensor; 54. Guide seat; 55. Moving rod; 56. First contact block; 57. Second contact block; 58. Connector;

[0051] 6. Floating pressure assembly; 61. Fixed cylinder; 62. Floating pressure column; 63. Second spring;

[0052] 7. Workpiece. Detailed Implementation

[0053] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "straight," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0056] As attached Figure 1-2 As shown, the automatic receiving cutting and punching die of the present invention includes a lower die 1, an upper die 2, a floating pressure component 6, a stripping component 3, and a receiving component 4; wherein, the upper die 2 is a moving die, and the lower die 1 is a fixed die. The upper die 2 can be driven and lifted by a hydraulic drive system commonly used in the art to perform opening and closing operations with the lower die 1. Specifically, the upper die 2 includes an upper template 21 and an upper die base 22 that are parallel to each other and fixedly connected. The upper template 21 and the upper die base 22 can be connected and fixed by a conventional metal plate. The main structure of the lower die 1 is the same as that of the upper die 2.

[0057] A mold closing guide sleeve 225 is fixedly installed on the upper mold base 22, and a mold closing guide post 14 corresponding to the position of the mold closing guide sleeve 225 is installed on the lower mold 1. The mold closing guide sleeve 225 and the mold closing guide post 14 guide and cooperate to ensure accurate docking when the upper mold 2 and the lower mold 1 are closed.

[0058] As attached Figure 3 As shown, the lower mold 1 serves as the supporting base for the workpiece 7, and a support seat 11 for supporting the main body of the workpiece 7 is provided on it. In this embodiment, a slot structure adapted to the main body of the workpiece 7 is machined on the support seat 11 to ensure stable support of the workpiece 7 and to perform initial positioning of the workpiece 7.

[0059] Multiple support cylinders 12 are symmetrically arranged on both sides of the support base 11 for supporting the workpiece 7 to be cut. In this embodiment, a positioning groove 121 is provided on the top surface of the support cylinder 12 for positioning the workpiece 7 to be cut. The contour of the positioning groove 121 matches the outer contour of the workpiece 7 to be cut, and is used to pre-position the workpiece 7 to be cut. An outer cutting blade 13 is symmetrically arranged on both sides of each support cylinder 12. The outer cutting blade 13 is arc-shaped and matches the outer wall contour of the support cylinder 12.

[0060] As attached Figure 6 , 8As shown, multiple annular pressure cylinders 221 corresponding to the positions of the support cylinder 12 are floatingly arranged on the upper mold base 22. The annular pressure cylinders 221 are used to press the part of the workpiece 7 to be cut onto the support cylinder 12. Specifically, multiple blind holes 224 are opened on the lower surface of the upper mold base 22. The positions of the multiple blind holes 224 correspond to the positions of the annular pressure cylinders 221. A first spring 2241 is provided in each blind hole 224. The top end of the first spring 2241 abuts against the bottom of the blind hole 224. The bottom end of the first spring 2241 abuts against the upper surface of the annular pressure cylinder 221, allowing the annular pressure cylinder 221 to float vertically relative to the upper mold base 22. In this embodiment, each annular pressure cylinder 221 corresponds to four blind holes 224 and four first springs 2241. The four blind holes 224 are evenly distributed along the circumference of the floating pressure cylinder to ensure that the first springs 2241 are subjected to uniform force. The number of blind holes 224 and first springs 2241 can be increased or decreased according to the actual situation during use.

[0061] During operation, when the upper mold 2 and lower mold 1 close, the annular pressure cylinder 221 gradually compresses the first spring 2241 within the blind hole 224 of the upper mold base 22 until the first spring 2241 is fully compressed. During this process, the annular pressure cylinder 221 gradually presses the workpiece 7 to be cut under the reaction force of the first spring 2241, ensuring that the workpiece 7 is firmly pressed and does not loosen, while also preventing excessive pressure that could cause deformation of the workpiece 7. When the upper mold 2 and lower mold 1 open, the first spring 2241 can drive the annular pressure cylinder 221 to reset, saving time for the next processing step.

[0062] Furthermore, the bottom surface of the annular pressure cylinder 221 is provided with a conical positioning part 2211 that matches the part of the workpiece 7 to be cut. When the mold is closed, the part of the workpiece 7 to be cut can be precisely pressed onto the bearing cylinder 12. At the same time, the slightly deformed blank is adjusted by the conical surface to ensure stable positioning.

[0063] As attached Figure 5-6 As shown, each annular pressure cylinder 221 has an inner cutting blade 222 and a clamping cylinder 223 on its inner and outer sides respectively. In this embodiment, the annular pressure cylinder 221, the inner cutting blade 222 and the clamping cylinder 223 are concentrically arranged. The inner cutting blade 222 is cylindrical in shape, and its top is fixed on the lower die 1 with the blade facing downward. It is used to cut the inner circular residual material of the part to be cut of the workpiece 7. The clamping cylinder 223 is annular in shape. The top of the inner cutting blade 222 and the clamping cylinder 223 are fixed on the upper die 22. The lower end of the clamping cylinder 223 has a conical cutter 2231. The conical cutter 2231 and the outer cutting blade 13 cooperate to cut the edge of the part to be cut of the workpiece 7.

[0064] Please refer to the attached document. Figure 6It should be noted that, since the annular pressure cylinder 221 is in a floating state, its inner wall is in sliding engagement with the inner cutting blade 222, and its outer wall is in sliding engagement with the clamping cylinder 223. In order to limit its position, an annular protrusion is machined on the top of the annular pressure cylinder 221, and a limiting groove corresponding to the annular protrusion is opened on the inner wall of the clamping cylinder 223. When the annular pressure cylinder 221 moves upward, the annular protrusion disengages from the limiting groove, and when the annular pressure cylinder 221 moves downward, the annular protrusion abuts against the limiting groove to prevent the annular pressure cylinder 221 from falling.

[0065] In this embodiment, the inner diameter of the clamping cylinder 223 is slightly smaller than the outer diameter of the finished workpiece 7 after cutting, so as to form an interference fit and clamp the finished workpiece 7. When the mold is opened, the finished workpiece 7 is clamped by the clamping cylinder 223 and released from the lower mold 1.

[0066] By integrating the functions of the inner cutting tool 222 for inner circle punching and the tapered cutting tool 2231 and outer cutting tool 13 for outer circle trimming, the workpiece 7 can complete multi-process processing without transfer, avoiding positioning deviations during process switching, greatly improving the coaxiality accuracy of inner and outer circles, and reducing the scrap rate.

[0067] Meanwhile, the tapered cutter 2231 and the outer cutter 13 are used in a shearing combination, and the upper die 2 is used to press the cutting force to achieve the cutting. The cutting force is stable and sufficient, which can completely cut off the part of the workpiece 7 to be cut, reduce the generation of burrs, eliminate the need for manual subsequent grinding, and reduce process costs.

[0068] As attached Figure 4-5 As shown, to ensure that the main body of workpiece 7 does not shift during processing, the upper mold 2 is also provided with a floating pressure component 6, which includes a fixed cylinder 61, a floating pressure column 62 and a second spring 63. The fixed cylinder 61 is fixed on the upper mold base 22 and the opening faces downward. The second spring 63 is set inside the fixed cylinder 61. The upper end of the floating pressure column 62 extends into the fixed cylinder 61 and abuts against the second spring 63. The lower end of the floating pressure column 62 abuts against the main body of workpiece 7 and presses the main body of workpiece 7 tightly onto the bearing seat 11.

[0069] During operation, when the upper mold 2 and the lower mold 1 are closed, the floating pressure column 62 descends and contacts the top surface of the main body of the workpiece 7. As the mold continues to close, the floating pressure column 62 gradually compresses the second spring 63 inside the fixed cylinder 61. The second spring 63 applies pressure to the floating pressure column 62, causing the floating pressure column 62 to gradually press the main body of the workpiece 7. The part of the workpiece 7 to be cut will be stretched towards the main body due to the pressure, thereby preventing wrinkles from appearing on the workpiece 7. At the same time, the workpiece 7 is sheared under tension, which can ensure that the cut is flat.

[0070] As attached Figure 4As shown, the stripping assembly 3 is mounted on the upper mold base 22 and is used to drive the annular pressure cylinder 221 to move vertically, thereby ejecting the finished workpiece 7 from the clamping cylinder 223. Specifically, the stripping assembly 3 includes a floating plate 31, a guide column 32, and a first cylinder 33. The floating plate 31 is slidably mounted on the upper side of the upper mold base 22. One end of the guide column 32 is connected and fixed to the bottom of the floating plate 31, and the other end of the guide column 32 passes through the upper mold base 22 and is fixed to the top surface of the annular pressure cylinder 221. The guide column 32 slides with the upper mold base 22 to achieve synchronous lifting and lowering of the floating plate 31 and the annular pressure cylinder 221. The first cylinder 33 is mounted on the floating plate 31, and the telescopic end of the first cylinder 33 engages with the bottom surface of the upper mold plate 21 to drive the floating plate 31 to lift and lower.

[0071] During operation, the first cylinder 33 is activated, and its telescopic end extends and abuts against the bottom surface of the upper template 21. The telescopic end continues to extend and retract, pushing the cylinder body of the first cylinder 33 downward, thereby driving the floating plate 31, guide column 32 and annular pressure cylinder 221 downward to push the finished workpiece 7 out of the clamping cylinder 223 and complete the unloading. In actual use, the first cylinder 33 can also be installed on the bottom surface of the upper template 21, and its telescopic end can push the floating plate 31 up and down to complete the unloading action.

[0072] As attached Figure 7 As shown, furthermore, to precisely control the unloading state, a position sensing component 5 is provided on one side of the first cylinder 33. The position sensing component 5 includes a mounting bracket 51, a first position sensor 52, a second position sensor 53, a guide seat 54, a moving rod 55, a first contact block 56, a second contact block 57, and a connector 58. The mounting bracket 51 is fixed to the side wall of the first cylinder 33. The first position sensor 52 and the second position sensor 53 are both fixed on the mounting bracket 51 and are distributed vertically. The first position sensor 52 corresponds to the unloading state of the unloading component 3, and the second position sensor 53 corresponds to the non-unloading state of the unloading component 3. Two guide seats 54 are provided, and the two guide seats are... The seat 54 is horizontally fixed to the upper and lower sides of the mounting bracket 51 by bolts. The two ends of the moving rod 55 pass through the two guide seats 54 respectively and slide with the guide seats 54. The first contact block 56 and the second contact block 57 are both fixed on the guide seats 54, and the positions of the first contact block 56 and the second contact block 57 correspond to the positions of the first position sensor 52 and the second position sensor 53. One end of the connecting piece 58 is fixed to the telescopic end of the first cylinder 33, and the other end is fixed to the top of the moving rod 55. The first cylinder 33 is used to drive the moving rod 55 to rise or fall, so that the first contact block 56 contacts the first position sensor 52 or the second contact block 57 contacts the second position sensor 53.

[0073] During operation, when the telescopic end of the first cylinder 33 extends, the moving rod 55 drives the first contact block 56 to move upward. When the first contact block 56 contacts the first position sensor 52, the stripping assembly 3 is in the stripping state. When the telescopic end retracts, the moving rod 55 drives the second contact block 57 to move downward. When the second contact block 57 contacts the second position sensor 53, the stripping assembly 3 is in the non-stripping state. This allows for the accurate acquisition of the stripping assembly 3's state, preventing situations such as workpiece 7 being missed or jammed.

[0074] As attached Figure 1 , 9 As shown in Figure 10, the receiving assembly 4 is disposed on the edge of the upper mold base 22 and is used to receive the ejected workpiece 7. Specifically, the receiving assembly 4 includes a support frame 41, a movable frame 42, a receiving tray 43, and a second cylinder 44. The support frame 41 is fixed to the side wall of the upper mold base 22 by bolts. The movable frame 42 is slidably disposed in the support frame 41 in the horizontal direction. In this embodiment, the support frame 41 is U-shaped, and the open side of the support frame 41 is fixed to the upper mold base 22. The movable frame 42 is rectangular, and the movable frame 42 and the support frame 41 can be slidably fitted using a slider or groove structure commonly used in the art. A rotating shaft 431 is fixedly disposed at the bottom of the receiving tray 43. The two ends of the rotating shaft 431 penetrate through the two side walls of the movable frame 42 and rotate in cooperation with the two side walls of the movable frame 42. The second cylinder 44 is fixed on the support frame 41 and is used to drive the movable frame 42 to move.

[0075] When the upper mold 2 and the lower mold 1 open, the second cylinder 44 drives the moving frame 42 to extend into the bottom of the upper mold 2 to receive the cut workpiece 7; when the upper mold 2 and the lower mold 1 close, the second cylinder 44 drives the moving frame 42 to exit the bottom of the upper mold 2 to complete the automatic material collection.

[0076] Furthermore, in order to achieve the state switching of the receiving tray 43, both sides of the support frame 41 are provided with horizontal racks 411. The racks 411 can be fixed to the support frame 41 by a metal strip, and both ends of the rotating shaft 431 are fixed with gears 4311 that cooperate with the racks 411.

[0077] When the moving frame 42 moves to the side of the upper mold 2, the gear 4311 meshes with the rack 411 in a counterclockwise direction, so that the receiving tray 43 gradually comes to a horizontal position to facilitate receiving materials. In this embodiment, multiple support rods are horizontally arranged at the bottom of the moving frame 42 near the upper mold 2 to support the horizontal receiving tray 43, so that the receiving tray 43 is stably horizontal when receiving materials.

[0078] When the moving frame 42 moves away from the upper mold 2, the gear 4311 meshes with the rack 411 in a clockwise direction, causing the receiving tray 43 to gradually tilt outward, so that the finished workpiece 7 slides down the tray surface to the external receiving box.

[0079] By linking the stripping component 3 and the receiving component 4, the finished workpiece 7 can be automatically ejected, received, and slid down for collection without manual intervention. This not only improves processing efficiency but also eliminates the safety hazard of fingers being pinched.

[0080] The processing technology of the above-mentioned automatic receiving edge-cutting and punching die includes the following steps:

[0081] S1. Place the workpiece 7 on the lower mold 1, so that the main body of the workpiece 7 fits against the support seat 11, and the part to be cut is placed into the positioning groove 121 of the support cylinder 12 to complete the positioning. This achieves fast and accurate pre-positioning of the workpiece 7, avoids the limitations of traditional positioning that relies on fixed blocks, lays a stable benchmark for subsequent processing, and reduces accuracy problems caused by positioning deviation.

[0082] S2. The upper die 2 is driven to move downward by the stamping equipment, and the annular pressure cylinder 221 presses the part of the workpiece 7 to be cut. The annular pressure cylinder 221 first contacts the part of the workpiece 7 to be cut, and its conical positioning part 2211 cooperates with the positioning groove 121 to press the part to be cut. At the same time, the floating pressure component 6 presses the main body of the workpiece 7. Specifically, the pressure column of the floating pressure component 6 contacts the main body of the workpiece 7, and the main body is pressed on the bearing seat 11 by the elastic force of the second spring 63. This can not only adapt to blanks of different thicknesses, but also prevent the workpiece 7 from shifting when the mold is closed, and ensure the stability of the workpiece 7 during the processing.

[0083] S3. The upper mold 2 continues to move downwards. The inner cutting blade 222 first cuts the inner circle residual material of the part to be cut on the workpiece 7. The inner circle residual material falls naturally through the waste hole preset by the lower mold 1. Then, the conical cutting blade 2231 of the clamping cylinder 223 and the outer cutting blade 13 cut the edge together. At this time, the finished workpiece 7 is interference-clamped by the inner wall of the clamping cylinder 223. This avoids the process switching loss of traditional multi-station step-by-step processing, improves processing efficiency, and reduces the coaxiality error caused by the change of positioning reference.

[0084] S4. The stamping equipment drives the lower die 1 to move upward, and the clamping cylinder 223 carries the finished product 7 of the workpiece 7 away from the lower die 1. The inner circle residual material and the outer circle edge material remain on the lower die 1, which will be cleaned up by the staff or the automatic waste collection device later. No additional part removal action is required, which simplifies the operation process and avoids the finished product from falling or being damaged during the mold opening process, thus ensuring the integrity of the finished product.

[0085] S5. After the upper mold 2 is in place, the second cylinder 44 of the receiving component 4 drives the moving frame 42 to move into the bottom of the upper mold 2. The gear 4311 meshes with the rack 411 to make the receiving plate 43 turn to a horizontal state and be supported by the support rod. Then, the first cylinder 33 of the stripping component 3 drives the floating plate 31 to move down, and the guide column 32 drives the annular pressure cylinder 221 to move down, pushing out the finished product 7 in the clamping cylinder 223. The finished product falls into the receiving plate 43, realizing automatic receiving of finished products. There is no need for manual insertion into the mold to pick up the material, which improves the safety of picking up the material. At the same time, it ensures that the finished products are collected in an orderly manner and reduces the collision of finished products caused by manual operation.

[0086] S6. After the finished workpiece 7 falls onto the receiving tray 43, the second cylinder 44 drives the moving frame 42 to move out of the bottom of the upper mold 2. The gear 4311 meshes with the rack 411, causing the receiving tray 43 to tilt. The finished product slides down the tray surface to the external receiving box. At the same time, the first cylinder 33 resets, driving the annular pressure cylinder 221 to move upward and reset, completing the material collection. This achieves automatic material collection and rapid mold reset, eliminating the need for manual handling of finished products, shortening the single-cycle processing time, and preparing for the next processing. It adapts to the needs of batch continuous production and further improves the overall production efficiency.

[0087] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic receiving die for trimming and punching, characterized in that: Include The lower mold (1) is provided with a support seat (11) for carrying the main body of the workpiece (7). Multiple support cylinders (12) for carrying the parts to be cut of the workpiece (7) are symmetrically arranged on both sides of the support seat (11). Each support cylinder (12) is symmetrically provided with an external cutting blade (13) on both sides. The upper mold (2) includes an upper template (21) and an upper mold base (22) that are parallel to each other and fixedly connected. The upper mold base (22) is provided with a plurality of annular pressure cylinders (221) corresponding to the positions of the support cylinder (12). The annular pressure cylinders (221) are used to press the part of the workpiece (7) to be cut onto the support cylinder (12). Each annular pressure cylinder (221) is provided with an inner cutting blade (222) and a clamping cylinder on its inner and outer sides, respectively. (223), the inner cutting blade (222) is used to cut the inner circular residual material of the part to be cut of the workpiece (7), the lower end of the clamping cylinder (223) has a conical cutting blade (2231), the conical cutting blade (2231) is sheared with the outer cutting blade (13) to cut the edge of the part to be cut of the workpiece (7), the inner wall of the clamping cylinder (223) is interference-fitted with the outer wall of the cut workpiece (7) to clamp the finished workpiece (7); The stripping assembly (3) is set on the upper mold base (22) and is used to drive the annular pressure cylinder (221) to move vertically so as to eject the finished workpiece (7) in the clamping cylinder (223); The receiving assembly (4) is located on the edge of the upper mold base (22) and is used to receive the ejected workpiece (7).

2. The automatic receiving cutting and punching die according to claim 1, characterized in that: The lower surface of the upper mold base (22) is provided with a plurality of blind holes (224), the positions of the plurality of blind holes (224) correspond to the positions of the annular pressure cylinder (221), and a first spring (2241) is provided in each blind hole (224). The top end of the first spring (2241) abuts against the bottom of the blind hole (224), and the bottom end of the first spring (2241) abuts against the upper surface of the annular pressure cylinder (221).

3. The automatic receiving edge-cutting and punching die according to claim 1 or 2, characterized in that: The top surface of the bearing cylinder (12) is provided with a positioning groove (121) for positioning the part of the workpiece (7) to be cut, and the bottom surface of the annular pressure cylinder (221) is provided with a conical positioning part (2211) that matches the part of the workpiece (7) to be cut.

4. The automatic receiving edge-cutting and punching die according to claim 1, characterized in that: The unloading assembly (3) includes a floating plate (31), a guide post (32), and a first cylinder (33). The floating plate (31) is vertically and vertically mounted on the upper mold base (22). One end of the guide post (32) is connected and fixed to the bottom of the floating plate (31), and the other end of the guide post (32) passes through the upper mold base (22) and is fixed on the top surface of the annular pressure cylinder (221). The first cylinder (33) is mounted on the floating plate (31), and the telescopic end of the first cylinder (33) cooperates with the bottom surface of the upper mold plate (21) to drive the floating plate (31) to rise and fall.

5. The automatic receiving edge-cutting and punching die according to claim 4, characterized in that: A position sensing component (5) is provided on one side of the first cylinder (33). The position sensing component (5) includes a mounting bracket (51), a first position sensor (52), a second position sensor (53), a guide seat (54), a moving rod (55), a first contact block (56), a second contact block (57), and a connector (58). The mounting bracket (51) is fixed on the side wall of the first cylinder (33). The first position sensor (52) and the second position sensor (53) are both fixed on the mounting bracket (51). There are two guide seats (54), which are horizontally fixed on the upper and lower sides of the mounting bracket (51), respectively. The two moving rods (55) are connected to the first cylinder (33) and the second position sensor (53) are connected to the second position sensor (57). The first contact (56) and the second contact (57) are respectively fixed on the guide seat (54) and the positions of the first contact (56) and the second contact (57) correspond to the positions of the first position sensor (52) and the second position sensor (53). One end of the connector (58) is fixed on the telescopic end of the first cylinder (33) and the other end is fixed on the top of the moving rod (55). The first cylinder (33) is used to drive the moving rod (55) to rise or fall, so that the first contact (56) contacts the first position sensor (52) or the second contact (57) contacts the second position sensor (53). When the first contact block (56) contacts the first position sensor (52), the material stripping assembly (3) is in the material stripping state. When the second contact block (57) contacts the second position sensor (53), the material stripping assembly (3) is in the non-material stripping state.

6. The automatic receiving edge-cutting and punching die according to claim 1, characterized in that: The receiving assembly (4) includes a support frame (41), a movable frame (42), a receiving tray (43), and a second cylinder (44). The support frame (41) is fixed on the side wall of the upper mold base (22). The movable frame (42) is slidably disposed in the support frame (41) in the horizontal direction. A rotating shaft (431) is fixedly disposed at the bottom of the receiving tray (43). The two ends of the rotating shaft (431) pass through the two side walls of the movable frame (42) and rotate in cooperation with the two side walls of the movable frame (42). The second cylinder (44) is fixed on the support frame (41) and is used to drive the movable frame (42) to move. When the upper mold (2) and the lower mold (1) open, the second cylinder (44) drives the moving frame (42) to extend into the bottom of the upper mold (2) to receive the cut workpiece (7) finished product; when the upper mold (2) and the lower mold (1) close, the second cylinder (44) drives the moving frame (42) to exit the bottom of the upper mold (2).

7. The automatic receiving edge-cutting and punching die according to claim 6, characterized in that: Both sides of the support frame (41) are provided with horizontal racks (411), and both ends of the rotating shaft (431) are fixedly provided with gears (4311) that mesh with the racks (411). Multiple support rods are horizontally provided at the bottom of the moving frame (42) near the upper mold (2). When the moving frame (42) moves to the side of the upper mold (2), the gears (4311) mesh with the racks (411) in a counterclockwise direction, so that the receiving tray (43) gradually becomes horizontal. When the moving frame (42) moves away from the upper mold (2), the gears (4311) mesh with the racks (411) in a clockwise direction, so that the receiving tray (43) gradually becomes tilted outward.

8. The automatic receiving edge-cutting and punching die according to claim 1, characterized in that: It also includes a floating pressure assembly (6), which includes a fixed cylinder (61), a floating pressure column (62), and a second spring (63). The fixed cylinder (61) is fixed on the upper mold base (22) and the opening faces downward. The second spring (63) is disposed inside the fixed cylinder (61). The upper end of the floating pressure column (62) extends into the fixed cylinder (61) and abuts against the second spring (63). The lower end of the floating pressure column (62) abuts against the main body of the workpiece (7) and presses the main body of the workpiece (7) onto the support seat (11).

9. The automatic receiving edge-cutting and punching die according to claim 1, characterized in that: A mold closing guide sleeve (225) is fixedly provided on the upper mold base (22), and a mold closing guide post (14) corresponding to the position of the mold closing guide sleeve (225) is provided on the lower mold (1). The mold closing guide sleeve (225) and the mold closing guide post (14) are guided and cooperated.

10. The processing technology of an automatic receiving edge-cutting and punching die as described in any one of claims 1-9, characterized in that: Includes the following steps: S1. Place the workpiece (7) on the lower mold (1) so that the main body of the workpiece (7) fits against the support seat (11) and the part to be cut is placed in the positioning groove (121) of the support cylinder (12) to complete the positioning. S2, the upper die (2) moves down, the annular pressure cylinder (221) presses the part of the workpiece (7) to be cut, and the floating pressure assembly (6) presses the main body of the workpiece (7); S3, the inner cutting blade (222) cuts the inner circular residual material of the workpiece (7) to be cut, and the conical cutting blade (2231) of the clamping cylinder (223) and the outer cutting blade (13) cut the edge together to complete the cutting. S4. The lower mold (1) moves upward, and the clamping cylinder (223) carries the workpiece (7) and the finished product away from the lower mold (1); S5. The moving frame (42) of the receiving component (4) moves into the bottom of the upper mold (2), the receiving tray (43) turns to a horizontal state below the finished product of the workpiece (7), the unloading component (3) drives the annular pressure cylinder (221) to push out the finished product of the workpiece (7), and the finished product falls onto the receiving tray (43). S6. Move the frame (42) out of the bottom of the upper mold (2), and the receiving tray (43) turns to an inclined state so that the finished workpiece (7) slides down, completing the material collection.

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