A method and device for end stamping

Abstract

The present invention relates to the technical field of metal part stamping, and more particularly, to a method and device for stamping the end head. The method includes stacking metal ring sheets vertically at a first position, and acquiring the status information of a second position in real time at a preset frequency; based on the second position being in an empty-load state, sucking the metal ring sheet at the top of the first position to the second position; based on the second position switching from the empty-load state to the incoming material state, extruding the metal ring sheet at the second position along a preset direction; based on the extrusion of the metal ring sheet at the second position being completed, repeatedly sucking the metal ring sheet at the top of the second position to a stamping die for stamping until the second position is in an empty-load state. In this way, the problem that metal ring sheets are prone to adhesion during the feeding stage of end head stamping and forming, resulting in multiple metal ring sheets being adsorbed simultaneously, is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal part stamping, and in particular, to a method and device for stamping the end head. Background Art

[0002] At present, the stainless-steel thin end head is a key component of the muffler exhaust pipe system assembly of a fuel vehicle. This component adopts a structural design of a large end and a small end. The large end is integrally connected with an outer wrapper wrapped with metal cotton through a welding process, and the small end is assembled and welded with the exhaust pipe section. The overall structure undertakes the dual functions of heat insulation and support in a high-temperature environment. The end head body is manufactured by a stamping process, and the surface is provided with a convex point structure and a concave pit structure distributed in an array. The convex points can effectively improve the ductility of the end head structure.

[0003] The stainless-steel thin end head is formed by stamping a metal ring sheet. The metal ring sheet has a plurality of convex points arranged in an array. The outer ring and the inner ring of the metal ring sheet are stamped in opposite directions along the axial direction by using a stamping die, so that an end head with a large diameter at one end and a small diameter at the other end can be formed. However, in the current stamping process of the stainless-steel thin end head, first, an automated device needs to use a suction cup to pick up materials, that is, to suck the metal ring sheet. In order to save space, the metal ring sheets are stacked vertically on the material picking table, and the suction cup sequentially sucks each metal ring sheet from the top. When the suction cup sucks the material, there will be a downward pressing action, and the mechanical stress generated causes the convex points and concave pits on the adjacent vertically stacked metal ring sheets to be easily stuck, resulting in two or even multiple metal ring sheets being adhered together and sucked by the suction cup at the same time. This will directly cause the automated device to possibly suck multiple metal ring sheets in a single adsorption action, which is inconvenient for stamping processing. Summary of the Invention

[0004] In order to solve the problem that the metal ring sheets are easily adhered during the feeding stage of stamping the end head, resulting in multiple metal ring sheets being adsorbed simultaneously, the present invention provides a method and device for stamping the end head.

[0005] In a first aspect, the present invention provides a method for stamping the end head, including:

[0006] Step S10, based on the metal ring sheets being stacked vertically at a first position, obtaining the state information of a second position in real time at a preset frequency; the state information includes an empty load state and a material incoming state;

[0007] Step S20, based on the second position being in the empty load state, sucking the metal ring sheet at the top of the first position to the second position;

[0008] Step S30, based on the second position being switched from the no-load state to the incoming material state, extrude the metal ring at the second position along a preset direction; the preset direction is from the outer circumferential side of the metal ring to the inner circumferential side of the metal ring;

[0009] Step S40, based on the extrusion of the metal ring at the second position being completed, repeatedly suck the metal ring at the top of the second position into the stamping die for stamping until the second position is in the no-load state.

[0010] In some embodiments, step S30 includes:

[0011] Step S31, based on the second position being switched from the no-load state to the incoming material state, apply pressure to the metal ring at the second position along a preset direction; the preset direction is from the outer circumferential side of the metal ring to the inner circumferential side of the metal ring;

[0012] Step S32, based on the metal ring at the second position being in a squeezed state, obtain the attitude information of the metal ring at the second position; the attitude information includes a horizontal state and an inclined state;

[0013] Step S33, based on the metal ring at the second position being in an inclined state, release the squeezing force on the metal ring at the second position and then extrude the metal ring again along the preset direction;

[0014] Step S34, repeat step S32 to step S33 until the metal ring at the second position is in a horizontal state;

[0015] Step S35, based on the metal ring at the second position being in a horizontal state, release the squeezing force on the metal ring at the second position, and the extrusion is completed.

[0016] In some embodiments, in step S30, the preset direction includes a first direction and a second direction; the first direction and the second direction intersect.

[0017] In some embodiments, in step S30, the first direction deviates from the center of the metal ring; the second direction points to the center of the metal ring.

[0018] In some embodiments, in step S30, the squeezing force along the first direction on the metal ring at the second position is the first pressure; the squeezing force along the second direction on the metal ring at the second position is the second pressure; the second pressure is greater than the first pressure.

[0019] In some embodiments, step S31 includes:

[0020] Step S311, based on the second position switching from the no-load state to the incoming material state, applying a first pressure to the metal ring at the second position along a first direction;

[0021] Step S312, based on the metal ring being in a compressed state along the first direction, applying a second pressure to the metal ring at the second position along a second direction.

[0022] In some embodiments, step S30 includes: based on the second position switching from the no-load state to the incoming material state, squeezing the metal ring at the second position multiple times along a preset direction; the preset direction is the direction from the outer circumferential side of the metal ring to the inner circumferential side of the metal ring.

[0023] In a second aspect, the present invention provides a terminal stamping device, which is applied to the terminal stamping method described in the second aspect. The terminal stamping device includes:

[0024] A first material loading component, the first material loading component includes a first material loading table; the first material loading table is used to carry a plurality of stacked metal rings;

[0025] A second material loading component, the second material loading component includes a second material loading table;

[0026] A first moving component, the first moving component includes a first driving part, a moving arm and a first suction cup; the first driving part drives the moving arm to move; the moving arm is detachably connected to the first suction cup; the first suction cup is used to suck the metal ring;

[0027] An extrusion component, the extrusion component is detachably connected to the second material loading table; the extrusion component includes a first extrusion unit; the first extrusion unit includes a first extrusion block, a second extrusion block and a second driving part; the second driving part controls the distance adjustment between the first extrusion block and the second extrusion block;

[0028] A stamping component, the stamping component includes a stamping die, and the stamping die is used to stamp the metal ring into a terminal.

[0029] In some embodiments, the extrusion component further includes a second extrusion unit; the second extrusion unit includes a third extrusion block, a fourth extrusion block and a third driving part; the third driving part controls the distance adjustment between the third extrusion block and the fourth extrusion block; the third extrusion block and the fourth extrusion block adjust the distance along a first direction;

[0030] The first extrusion block and the second extrusion block adjust the distance therebetween along a second direction; the first direction intersects with the second direction.

[0031] In some embodiments, the third driving part further drives the third extrusion block and the fourth extrusion block to move relatively along a third direction; the third direction intersects with the first direction.

[0032] To solve the problem that metal ring sheets are prone to adhesion during the feeding stage of end stamping forming, resulting in the simultaneous adsorption of multiple metal ring sheets, the present invention has the following advantages:

[0033] First, stack the metal ring sheets vertically at a first position, and obtain the status information of a second position in real time at a preset frequency, including the no-load state and the incoming material state. When the second position is in the no-load state, suck the metal ring sheet at the top of the first position to the second position. Subsequently, after the second position switches to the incoming material state, extrude the metal ring sheet at the second position along a preset direction. Finally, after the extrusion is completed, repeatedly suck the metal ring sheet at the top of the second position to the stamping die for stamping until the second position returns to the no-load state. This can ensure that the metal ring sheets always remain in an independent and separated state during the transfer process. The extrusion in step S30 can eliminate the mechanical bite caused by the staggered protrusions of adjacent metal ring sheets. The mechanism of sucking the metal ring sheets one by one in step S40 circulates the sucking action, and picks up the metal ring sheets scattered by extrusion in sequence, so as to ensure that only a single metal ring sheet is processed at a time during the stamping process, thereby improving the efficiency and quality of end production, and at the same time avoiding the risk of stamping die jamming caused by the overlap of multiple metal ring sheets. Description of the Drawings

[0034] Figure 1 Shows a flowchart of an end stamping method according to an embodiment;

[0035] Figure 2 Shows a schematic diagram of an end stamping device according to an embodiment;

[0036] Figure 3 Shows a front view of an end stamping device according to an embodiment;

[0037] Figure 4 Shows a top view of an end stamping device according to an embodiment;

[0038] Figure 5 Shows Figure 4 An enlarged view of part A in

[0039] Figure 6 Shows Figure 5 A schematic diagram of the second loading table in the no-load state in

[0040] Figure 7The side view of a terminal stamping device according to an embodiment is shown.

[0041] Reference numerals: first loading assembly 01; first loading table 11; guiding unit 12; second loading assembly 02; second loading table 21; first moving assembly 03; first driving part 31; first suction cup 32; extrusion assembly 04; first extrusion unit 41; first extrusion block 411; second extrusion block 412; second driving part 413; second extrusion unit 42; third extrusion block 421; fourth extrusion block 422; third driving part 423; metal ring piece 05. Detailed implementation manners

[0042] The present disclosure will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are described only to enable those of ordinary skill in the art to better understand and thus implement the present disclosure, rather than to imply any limitation on the scope of the present disclosure.

[0043] As used herein, the term "comprising" and its variants are to be construed as open-ended terms meaning "including but not limited to". The term "based on" is to be construed as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment". The term "another embodiment" is to be construed as "at least one other embodiment". The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances. In addition, the terms "mounted", "arranged", "provided with", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated device, element or component. Unless otherwise specified, the meaning of "a plurality of" is two or more.

[0044] In this embodiment, in the stamping process of the metal ring 05, when the metal ring 05 with bumps is stored in the first position in a vertical stacking manner, when the suction cup device performs the suction operation, it needs to apply a downward extrusion force to the stacked metal rings 05 to overcome the problem of uneven gaps caused by the bumps. This will cause the suction cup device to be unable to accurately separate a single metal ring 05 in a single suction action, resulting in the stamping die receiving multiple overlapping metal rings 05, triggering a series of problems such as stamping die jamming, reduced stamping accuracy, and equipment shutdown. Therefore, in order to solve the above problems, the present invention provides a method for stamping the end.

[0045] A stamping device for the end can be applied to the stamping method for the end, such as Figure 2 、 Figure 3 、 Figure 4As shown, the end stamping device may include a first loading component 01, a second loading component 02, a first moving component 03, an extrusion component 04, and a stamping component.

[0046] The first loading component 01 includes a first loading table 11 which is used to carry a plurality of stacked metal ring pieces 05. The second loading component 02 includes a second loading table 21. The first moving component 03 includes a first driving part 31, a moving arm, and a first suction cup 32. The first driving part 31 drives the moving arm to move. The moving arm is detachably connected to the first suction cup 32, and the first suction cup 32 is used to suck the metal ring pieces 05. The extrusion component 04 is detachably connected to the second loading table 21, and the extrusion component 04 includes a first extrusion unit 41. The first extrusion unit 41 includes a first extrusion block 411, a second extrusion block 412, and a second driving part 413. The second driving part 413 controls the distance adjustment between the first extrusion block 411 and the second extrusion block 412. The stamping component includes a stamping die which is used to stamp the metal ring pieces 05 into ends.

[0047] As Figure 1 shown, the end stamping method may include step S10 to step S40, which will be described in detail below.

[0048] Step S10: Based on the fact that the metal ring pieces 05 are stacked vertically at a first position, the state information of a second position is obtained in real time at a preset frequency. The first position may be the upper surface of the first loading table 11, and the second position may be the upper surface of the second loading table 21. The preset frequency may be from 1 second to 20 seconds. The state information includes an empty-load state and a material-incoming state. The empty-load state means that there is no metal ring piece 05 at the second position, and the material-incoming state means that there is a metal ring piece 05 at the second position. In this way, the stable storage of the metal ring pieces 05 can be realized through the vertical stacking method. At the same time, the real-time state information monitoring can accurately judge the transfer timing of the metal ring pieces 05 and provide an accurate trigger condition for the subsequent steps.

[0049] Step S20: Based on the fact that the second position is in the empty-load state, the metal ring piece 05 at the top of the first position is sucked to the second position. Using the empty-load state as a start signal, the top-sucking method can avoid the mutual interference of the stacked metal ring pieces 05, thus ensuring the accuracy and efficiency of transferring the metal ring pieces 05 to the second position.

[0050] Step S30: Based on the second position being switched from the no-load state to the incoming material state, extrude the metal ring 05 at the second position along a preset direction. The preset direction is from the outer circumferential side of the metal ring 05 to the inner circumferential side of the metal ring 05. Through the design of the extrusion direction from the outer circumference to the inner circumference of the metal ring 05, the annular structural characteristics of the metal ring 05 can be fully utilized. Such an extrusion method can ensure that the metal ring 05 always maintains an independent separation state when leaving the second position, creating favorable conditions for subsequent stamping.

[0051] Step S40: Based on the extrusion of the metal ring 05 at the second position being completed, repeat the process of sucking the metal ring 05 at the top of the second position into the stamping die for stamping. That is, when there are multiple metal rings 05 at the second position, the multiple metal rings 05 are separated by extruding the metal ring 05 at the second position, and then the metal ring 05 at the top of the second position is successively sucked into the stamping die for stamping until the second position is in the no-load state, thereby improving the production efficiency of the end production process.

[0052] In this embodiment, step S30 includes steps S31 to S35, which will be described in detail below.

[0053] Step S31: Based on the second position being switched from the no-load state to the incoming material state, apply pressure to the metal ring 05 at the second position along a preset direction. The preset direction is from the outer circumferential side of the metal ring 05 to the inner circumferential side of the metal ring 05.

[0054] Step S32: Based on the metal ring 05 at the second position being in a squeezed state, obtain the attitude information of the metal ring 05 at the second position. The attitude information includes a horizontal state and an inclined state. The horizontal state means that the upper surface of the second loading table 21 is parallel to and in contact with the lower surface of the metal ring 05, and the inclined state means that the upper surface of the second loading table 21 forms an angle with the lower surface of the metal ring 05. In this way, the state of the metal ring 05 is judged through the attitude information, thereby ensuring the position accuracy of the metal ring 05 during the processing.

[0055] Step S33: Based on the metal ring 05 at the second position being in an inclined state, after releasing the extrusion force on the metal ring 05 at the second position, extrude the metal ring 05 again along the preset direction. Through the alternating operation of pressure release and repeated pressure application, the offset caused by uneven force on the metal ring 05 can be eliminated. Thus, the state of the metal ring 05 can be effectively corrected, and further the quality stability of the processing of the metal ring 05 can be improved. When the metal ring 05 is in an inclined state, the range of movement is relatively large, which easily leads to insufficient extrusion and difficulty in separation. In the present invention, by detecting the position information of the metal ring 05, when the metal ring 05 is in an inclined state, the metal ring 05 is released and then extruded again to ensure sufficient extrusion and separate the adhered metal rings 05.

[0056] Step S34: Repeat steps S32 to S33 until the metal ring 05 at the second position is in a horizontal state. By adopting such an execution logic of cyclic detection and correction, it can ensure that the metal ring 05 reaches a horizontal state, thereby continuously improving the processing accuracy of the metal ring 05 and avoiding the problem of still being in an inclined state after a single adjustment.

[0057] Step S35: Based on the fact that the metal ring 05 at the second position is in a horizontal state, release the extrusion force applied to the metal ring 05 at the second position, and the extrusion is completed. Through the coordinated control of the horizontal state of the metal ring 05 and the pressure release, it can ensure that the metal ring 05 enters the next process qualifiedly, thereby ensuring the coherence of the end production process. If it is in a horizontal state after extrusion, it means that the extrusion is sufficient and there is no need for re-extrusion, which can save machine operation steps and improve processing efficiency.

[0058] In this embodiment, in step S30, the preset directions include a first direction and a second direction, the first direction and the second direction intersect, and the first direction can be the up-down direction as shown in Figure 4 and the second direction can be the left-right direction as shown in Figure 4 . By setting two intersecting force application directions, the stress distribution state of the metal ring 05 can be improved. At the same time, the extrusion in different directions can enhance the separation effect of multiple metal rings 05, thereby improving the end processing accuracy.

[0059] In this embodiment, in step S30, the first direction deviates from the center of the metal ring 05, and the second direction points to the center of the metal ring 05. Such a setting method can cause the rotation of the metal ring 05 and a more stable effect of applying force towards the center, thereby achieving a more accurate separation of the metal ring 05.

[0060] In this embodiment, in step S30, the extrusion force along the first direction applied to the metal ring 05 at the second position is the first pressure. The extrusion force along the second direction applied to the metal ring 05 at the second position is the second pressure. The second pressure is greater than the first pressure. In this way, by combining the main force generated by the larger second pressure and the auxiliary effect of the smaller first pressure, it can guide the metal ring 05 to achieve controllable rotation, thereby better separating the metal ring 05.

[0061] In this embodiment, step S31 includes steps S311 to S312, and the following can elaborate on steps S311 to S312 in detail.

[0062] Step S311: Based on the fact that the second position switches from the no-load state to the incoming material state, apply the first pressure to the metal ring 05 at the second position along the first direction.

[0063] Step S312: Based on the metal ring 05 being in a compressed state in the first direction, apply a second pressure to the metal ring 05 at the second position in the second direction. Applying a smaller first pressure for preliminary positioning first can stabilize the initial position of the metal ring 05, create favorable conditions for subsequent processing, and at the same time prevent the first pressure from fixing the metal ring 05 too tightly, resulting in the second pressure being unable to effectively extrude the metal ring 05.

[0064] In this embodiment, step S30 includes: Based on the second position switching from the no-load state to the incoming material state, extrude the metal ring 05 at the second position multiple times in a preset direction, where the preset direction is from the outer circumferential side of the metal ring 05 to the inner circumferential side of the metal ring 05. Using the multiple extrusion method in this way can ensure that the metal ring 05 can be fully extruded and spread out, so that it is not necessary to detect the state of the metal ring 05 at the second position, or reduce the accuracy requirements for the detection component.

[0065] In this embodiment, a terminal stamping device is provided, as Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 shown. The terminal stamping device includes a first loading component 01, a second loading component 02, a first moving component 03, an extrusion component 04, and a stamping component.

[0066] The first loading component 01 includes a first loading table 11. The first loading table 11 is used to carry a plurality of stacked metal rings 05, realizing the batch storage and orderly supply of the metal rings 05.

[0067] The second loading component 02 includes a second loading table 21. Setting up an independent loading unit can achieve spatial separation of the processing procedures. In order to detect the attitude information of the metal ring 05 on the second loading table 21, the second loading component 02 further includes a detector, and the detector is, for example, a proximity sensor. The proximity sensor is embedded in the upper surface of the second loading table 21. When the metal ring 05 is in contact with the second loading table 21, the proximity sensor can sense the metal ring 05. At this time, the metal ring 05 is in a horizontal state, otherwise it is in an inclined state.

[0068] The first moving component 03 includes a first driving part 31, a moving arm, and a first suction cup 32. The first driving part 31 drives the moving arm to move. The moving arm is detachably connected to the first suction cup 32, and the first suction cup 32 is used to suck the metal ring 05. The moving arm can move in the first direction and the second direction. The first suction cup 32 can be two. In this way, when sucking the metal ring 05, the two first suction cups 32 are respectively located at both ends of the diameter of the metal ring 05, so that the metal ring 05 can be moved more smoothly.

[0069] The extrusion assembly 04 is detachably connected to the second loading table 21. The extrusion assembly 04 includes a first extrusion unit 41. The first extrusion unit 41 includes a first extrusion block 411, a second extrusion block 412, and a second driving part 413. The second driving part 413 controls the distance adjustment between the first extrusion block 411 and the second extrusion block 412. In this way, when the metal ring piece 05 moves to the second position, the metal ring piece 05 can be fixed and extruded by the first extrusion block 411 and the second extrusion block 412, so as to complete the separation of multiple metal ring pieces 05.

[0070] The stamping assembly includes a stamping die, and the stamping die is used to stamp the metal ring piece 05 into a head end. The stamping die can ensure the standardized output of the product shape and produce qualified-quality head ends.

[0071] In this embodiment, as Figure 4 , Figure 5 shown, the extrusion assembly 04 further includes a second extrusion unit 42. The second extrusion unit 42 includes a third extrusion block 421, a fourth extrusion block 422, and a third driving part 423. The third driving part 423 controls the distance adjustment between the third extrusion block 421 and the fourth extrusion block 422. In this way, when the metal ring piece 05 moves to the second position, the third extrusion block 421 and the fourth extrusion block 422 adjust the distance along the first direction, and the first extrusion block 411 and the second extrusion block 412 adjust the distance along the second direction. The first direction intersects with the second direction. Thus, by applying extrusion forces in two intersecting directions, precise control of the metal ring piece 05 can be achieved, and multiple metal ring pieces 05 at the second position can be better separated, thereby improving the processing accuracy of the head end.

[0072] In some other embodiments, the third extrusion block 421 is movable, the fourth extrusion block 422 is fixed in position, the first extrusion block 411 is movable, the second extrusion block 412 is fixed in position, or the first extrusion block 411, the second extrusion block 412, the third extrusion block 421, and the fourth extrusion block 422 are all movable. The first loading assembly 01 may further include a guiding unit 12. The guiding unit 12 includes multiple guiding columns. In the illustration of the present invention, it is taken as an example that the guiding unit 12 includes four guiding columns. The metal ring pieces 05 can be vertically stacked between the multiple guiding columns, so that the guiding columns limit the metal ring pieces 05 to prevent them from collapsing. Multiple groups of the guiding unit 12 can be provided. As Figure 2 shown, taking the example that four groups of the guiding unit 12 are fixed on the first loading table 11, the multiple vertically stacked metal ring pieces 05 are limited to prevent them from collapsing.

[0073] In this embodiment, as Figure 5 , Figure 6As shown, the third driving part 423 also drives the third pressing block 421 and the fourth pressing block 422 to move relatively along the third direction. The third direction intersects with the first direction and is parallel to the second direction. By adding the movement of the third pressing block 421 and the fourth pressing block 422 along the third direction in this way, the relative movement formed between the third pressing block 421 and the fourth pressing block 422 is in a direction deviating from the center of the metal ring 05, so that the metal ring 05 has a tendency to twist and deform, which is beneficial to the separation of the adhered metal ring 05.

[0074] Those of ordinary skill in the art can understand that the above embodiments are specific cases for implementing the present disclosure, and in practical applications, various changes can be made to them in form and details without departing from the scope of the present disclosure.

Claims

1. A method for stamping the end, characterized in that, The described end stamping method includes: Step S10: Based on the metal ring sheets being stacked vertically at the first position, obtain the status information of the second position in real time at a preset frequency; the status information includes the no-load state and the incoming material state; Step S20: Based on the second position being in the no-load state, suck the metal ring sheet at the top of the first position to the second position; Step S30: Based on the second position switching from the no-load state to the incoming material state, extrude the metal ring sheet at the second position along a preset direction; the preset direction is the direction from the outer circumferential side of the metal ring sheet to the inner circumferential side of the metal ring sheet; wherein, the preset direction includes a first direction and a second direction; the first direction and the second direction intersect; the first direction deviates from the center of the metal ring sheet; the second direction points to the center of the metal ring sheet; Step S40: Based on the extrusion of the metal ring sheet at the second position being completed, repeat sucking the metal ring sheet at the top of the second position to the stamping die for stamping until the second position is in the no-load state.

2. The end stamping method according to claim 1, wherein Step S30 includes: Step S31: Based on the second position switching from the no-load state to the incoming material state, apply pressure to the metal ring sheet at the second position along a preset direction; the preset direction is the direction from the outer circumferential side of the metal ring sheet to the inner circumferential side of the metal ring sheet; Step S32: Based on the metal ring sheet at the second position being in a squeezed state, obtain the attitude information of the metal ring sheet at the second position; the attitude information includes the horizontal state and the inclined state; Step S33: Based on the metal ring sheet at the second position being in the inclined state, release the squeezing force on the metal ring sheet at the second position and then extrude the metal ring sheet again along the preset direction; Step S34: Repeat Step S32 to Step S33 until the metal ring sheet at the second position is in the horizontal state; Step S35: Based on the metal ring sheet at the second position being in the horizontal state, release the squeezing force on the metal ring sheet at the second position, and the extrusion is completed.

3. The end stamping method according to claim 2, wherein In Step S30, the squeezing force along the first direction borne by the metal ring sheet at the second position is the first pressure; the squeezing force along the second direction borne by the metal ring sheet at the second position is the second pressure; the second pressure is greater than the first pressure.

4. The end stamping method according to claim 3, wherein Step S31 includes: Step S311: Based on the second position switching from the no-load state to the incoming material state, apply the first pressure to the metal ring sheet at the second position along the first direction; Step S312: Based on the metal ring sheet being in a compressed state along the first direction, apply the second pressure to the metal ring sheet at the second position along the second direction.

5. A method for stamping the end head according to claim 1, characterized in that the step S30 includes: based on the second position being switched from the no-load state to the incoming material state, extruding the metal ring at the second position multiple times along a preset direction; the preset direction is the direction from the outer circumferential side of the metal ring to the inner circumferential side of the metal ring.

6. An end head stamping device applied to the end head stamping method according to any one of claims 1 to 5, characterized in that the end head stamping device includes: a first material loading component, the first material loading component includes a first material loading table; the first material loading table is used for carrying a plurality of stacked metal rings; a second material loading component, the second material loading component includes a second material loading table; a first moving component, the first moving component includes a first driving part, a moving arm and a first suction cup; the first driving part drives the moving arm to move; the moving arm is detachably connected to the first suction cup; the first suction cup is used for sucking the metal ring; an extrusion component, the extrusion component is detachably connected to the second material loading table; the extrusion component includes a first extrusion unit; the first extrusion unit includes a first extrusion block, a second extrusion block and a second driving part; the second driving part controls the distance adjustment between the first extrusion block and the second extrusion block; a stamping component, the stamping component includes a stamping die, and the stamping die is used for stamping the metal ring into an end head.

7. A method for stamping the end head according to claim 6, characterized in that the extrusion component further includes a second extrusion unit; the second extrusion unit includes a third extrusion block, a fourth extrusion block and a third driving part; the third driving part controls the distance adjustment between the third extrusion block and the fourth extrusion block; the third extrusion block and the fourth extrusion block adjust the distance along a first direction; the first extrusion block and the second extrusion block adjust the distance along a second direction; the first direction intersects the second direction.

8. A method for stamping the end head according to claim 7, characterized in that the third driving part further drives the third extrusion block and the fourth extrusion block to move relatively along a third direction; the third direction intersects the first direction.

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