Stamping die

Abstract

The utility model discloses a stamping die, and relates to the technical field of dies, and the stamping die comprises an upper die, a lower die, a bearing part, a guide assembly, two forming assemblies, a first stamping module and a second stamping module; the lower die and the upper die are assembled and matched; the guide assembly comprises a fixing piece, a guide piece and a supporting elastic piece, the fixing piece is arranged on the lower die and spaced from the bearing piece, the guide piece is arranged on the fixing piece, and a first guide groove and a second guide groove are formed in the end, close to the bearing piece, of the guide piece; the two forming assemblies are arranged on the two sides of the guide piece in a sleeving mode correspondingly and slide along the first guide groove and the second guide groove, and forming grooves are formed in the sides, away from each other, of the two forming assemblies correspondingly; the first stamping module and the second stamping module are respectively inserted into the upper die and the lower die; and the first stamping module and the second stamping module are respectively matched with the forming grooves in the adjacent forming assemblies when the upper die and the lower die are closed so as to form a convex part on the inner wall of the tubular workpiece. According to the stamping die, the stripping convenience and the forming yield of the tubular workpiece are improved.

Description

Technical Field

[0001] This application relates to the technical field of molds, and particularly relates to a stamping die. Background Art

[0002] Currently, in medical equipment and processing equipment, tubular workpieces with two oppositely arranged protruding parts on the inner wall are often used to facilitate the connection between the tubular workpiece and other workpieces.

[0003] Since the two protruding parts are located on the inner wall of the tubular workpiece, it is not easy to strip the material due to the interference of the two protruding parts when the stamping die forms the two protruding parts in one stamping. Therefore, usually, the two protruding parts are formed separately by two stamping methods. However, forming the two protruding parts separately by two stampings easily results in low symmetry and concentricity of the protruding parts, thereby causing a low forming yield rate of the tubular workpiece. Summary of the Utility Model

[0004] In view of the above, it is necessary to propose a stamping die to improve the convenience of stripping and the forming yield rate of the tubular workpiece.

[0005] An embodiment of the present application provides a stamping die, which includes an upper die, a lower die, a carrier, a guiding assembly, two forming assemblies, a first stamping module and a second stamping module; the lower die and the upper die are adapted to be closed in a first direction; the carrier is arranged on the lower die and is used for carrying a tubular workpiece that can move in a second direction perpendicular to the first direction; the guiding assembly includes a fixing member, a guiding member and a supporting elastic member, the fixing member is arranged on the lower die, and the fixing member and the carrier are arranged at intervals in the second direction, the guiding member is arranged on the fixing member, and the guiding member extends towards the carrier in the second direction, a first guiding groove and a second guiding groove arranged at intervals in the first direction are formed at one end of the guiding member close to the carrier, the distance between one ends of the first guiding groove and the second guiding groove close to the carrier is smaller than the distance between one ends of the first guiding groove and the second guiding groove far from the carrier, the supporting elastic member is sleeved on the guiding member, and one end of the supporting elastic member is connected to the fixing member; the two forming assemblies are respectively sleeved on opposite sides of the guiding member in the first direction, the two forming assemblies are arranged at intervals in the first direction and can respectively slide along the first guiding groove and the second guiding groove, the two forming assemblies are connected to one end of the supporting elastic member far from the fixing member, forming grooves are respectively formed on one sides of the two forming assemblies away from each other, and the two forming assemblies are used for inserting into the tubular workpiece when the tubular workpiece moves towards the two forming assemblies, and separating from each other under the guiding action of the first guiding groove and the second guiding groove to support the tubular workpiece; the first stamping module is inserted into one side of the upper die facing the lower die; the second stamping module is inserted into one side of the lower die facing the upper die, the first stamping module and the second stamping module are respectively arranged opposite to one of the two forming assemblies, and are used for cooperating with the forming groove formed on the adjacent forming assembly when the upper die and the lower die are closed to form a protrusion on the inner wall of the tubular workpiece.

[0006] In summary, in the stamping die according to the embodiment of the present application, a first guiding groove and a second guiding groove which are arranged at intervals along a first direction are formed at one end of a guiding member of the guiding assembly close to a bearing member, and two forming assemblies are sleeved on opposite sides of the guiding member along the first direction and can slide along the first guiding groove and the second guiding groove. When the stamping die stamps and forms a protrusion on the inner wall of a tubular workpiece, the two forming assemblies are inserted into the tubular workpiece and slide in the corresponding first guiding groove or second guiding groove under the drive of the tubular workpiece. Since the distance between one ends of the first guiding groove and the second guiding groove close to the bearing member is smaller than the distance between one ends of the first guiding groove and the second guiding groove far from the bearing member, the two forming assemblies move away from each other and support the tubular workpiece under the guiding action of the first guiding groove and the second guiding groove, so that it is convenient for a first stamping module and a second stamping module to cooperate with forming grooves formed on adjacent forming assemblies respectively to stamp and form two protrusions on the inner wall of the tubular workpiece at one time; by arranging a supporting elastic member, after the protrusion on the inner wall of the tubular workpiece is stamped and formed, the supporting elastic member drives the two forming assemblies to move towards the bearing member, the tubular workpiece moves away from the guiding assembly along a second direction at the same time, and the two forming assemblies move close to each other and separate from the tubular workpiece under the guiding action of the first guiding groove and the second guiding groove. In this way, the stamping die according to the embodiment of the present application improves the convenience during blanking, and can stamp and form two protrusions on the inner wall of the tubular workpiece at one time, so that the symmetry and concentricity of the two protrusions are relatively high, thereby improving the forming yield of the tubular workpiece.

[0007] In some embodiments, both the first guiding groove and the second guiding groove include a first guiding section, an inclined section and a second guiding section which are sequentially connected along the second direction. The first guiding section and the second guiding section both extend along the second direction. The first guiding section is located on a side of the inclined section close to the bearing member. The distance between the first guiding sections of the first guiding groove and the second guiding groove is smaller than the distance between the second guiding sections of the first guiding groove and the second guiding groove. The included angle between the extending direction of the inclined section and the second direction is an acute angle.

[0008] In some embodiments, each forming assembly includes a supporting member and a plugging member; the guiding member is located between the supporting members of the two forming assemblies, the forming groove is formed on a side of the supporting member facing away from the guiding member, one end of the supporting elastic member far from the fixing member abuts against the supporting members of the two forming assemblies, and the supporting member is used for inserting into the tubular workpiece when the tubular workpiece moves towards the two forming assemblies; the plugging member is inserted into the supporting member and extends into the corresponding first guiding groove or second guiding groove, and the plugging member is used for driving the corresponding supporting member to support the tubular workpiece or separate from the tubular workpiece under the guiding action of the corresponding first guiding groove or second guiding groove.

[0009] In some embodiments, the support member includes a support portion and a resisting portion; the support portion extends along the second direction, the forming groove is formed on a side of the support portion away from the guiding member, the plugging member is plugged into the support portion and extends into the corresponding first guiding groove or the second guiding groove, and the support portion is configured to insert into the tubular workpiece when the tubular workpiece moves towards the two forming assemblies; the resisting portion is connected to an end of the support portion away from the carrier, and one end of the support elastic member away from the fixing member abuts against the resisting portion, and the resisting portion is configured to resist the tubular workpiece, so that the support member drives the plugging member to slide in the corresponding first guiding groove or the second guiding groove under the pressing action of the tubular workpiece.

[0010] In some embodiments, two avoiding grooves extending along the second direction are further formed at an end of the guiding member close to the carrier, the two avoiding grooves are respectively located on a side of the guiding member facing the first stamping module and a side of the guiding member facing the second stamping module, a receiving groove is formed on a side of the support member facing the guiding member and is disposed opposite to the corresponding avoiding groove, and a resisting protrusion protrudes from a bottom of the receiving groove, and the resisting protrusion is configured to abut against the guiding member when the two forming assemblies move away from each other, and the avoiding groove is configured to avoid the corresponding resisting protrusion when the two forming assemblies move close to each other.

[0011] In some embodiments, an end of the avoiding groove away from the carrier has a guiding inclined surface extending from a bottom of the avoiding groove towards a side of the guiding member facing the first stamping module or a side of the guiding member facing the second stamping module.

[0012] In some embodiments, a guiding hole extending along the second direction and penetrating through opposite sides of the carrier is formed in the carrier, and the guiding hole is configured to allow the tubular workpiece to pass through and guide a moving direction of the tubular workpiece.

[0013] In some embodiments, the first stamping die group and the second stamping die group both include a guide seat, a pressing piece, an extrusion elastic piece and a stamping piece; the guide seat is inserted on the side of the upper die facing the lower die or the side of the lower die facing the upper die; the pressing piece is slidably inserted in the guide seat along the first direction and extends to the lower die or the upper die; one end of the extrusion elastic piece is connected to one end of the pressing piece located in the guide seat, and the other end is connected to the guide seat, and the extrusion elastic piece is used to drive the pressing piece to elastically press the tubular workpiece when the upper die and the lower die are closed; one end of the stamping piece is connected to the guide seat, and the other end is slidably passed through the pressing piece and extends to the lower die or the upper die, and the stamping piece is used to extend from the pressing piece when the upper die and the lower die are closed, and cooperate with the forming groove opened on the adjacent forming component to form the protrusion on the inner wall of the tubular workpiece.

[0014] In some embodiments, the stamping die also includes a stop assembly, which is arranged on the lower die and located on the side of the supporting member away from the fixing member. The stop assembly is used to stop the tubular workpiece away from one end of the two forming assemblies when the two forming assemblies support the tubular workpiece.

[0015] In some embodiments, the stop assembly includes a connecting member, a stopping member, a stopping elastic member and a toggle member; the connecting member is provided on the lower mold and is located on the side of the fixing member away from the guide assembly, the connecting member extends along the third direction and is staggered with the supporting member along the second direction, the connecting member is provided with a sliding channel and an avoidance groove extending and connected along the third direction, the sliding channel is opened in the middle of the connecting member and is connected to one end of the connecting member close to the supporting member, the avoidance groove is opened on the side wall of the connecting member, the first direction, the The second direction and the third direction are perpendicular to each other; the stop member is slidably arranged in the sliding channel; the stop elastic member is arranged in the sliding channel, and the two ends of the stop elastic member are respectively connected to the stop member and the inner wall of the sliding channel away from the supporting member, and the stop elastic member is used to drive the stop member to extend out of the sliding channel so that the stop member stops the tubular workpiece away from one end of the two forming components; the toggle member is passed through the avoidance groove and connected to the stop member, and is used to drive the stop member to move into the sliding channel under the action of external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the stamping die provided in the embodiment of the present application and the applicable tubular workpiece.

[0017] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the stamping die shown.

[0018] Figure 3 is Figure 1 a schematic perspective view of an applicable tubular workpiece as shown

[0019] Figure 4 is Figure 2 a schematic exploded view of a stamping die as shown

[0020] Figure 5 is Figure 4 a schematic exploded view of a guiding assembly and a forming assembly in the stamping die as shown

[0021] Description of Main Component Symbols

[0022] Stamping die 100

[0023] Upper die 10

[0024] Upper carrier plate 11

[0025] Upper floating plate 12

[0026] First buffer elastic member 13

[0027] Lower die 20

[0028] Lower carrier plate 21

[0029] Lower floating plate 22

[0030] Second buffer elastic member 23

[0031] Carrier member 30

[0032] Guiding hole 31

[0033] Guiding assembly 40

[0034] Fixing member 41

[0035] Guiding member 42

[0036] First guiding groove 421

[0037] First guiding section 4211

[0038] Inclined section 4212

[0039] Second guiding section 4213

[0040] Second guiding groove 422

[0041] Clearance groove 423

[0042] Guiding inclined surface 4231

[0043] Support elastic member 43

[0044] Forming component 50

[0045] Supporting member 51

[0046] Supporting portion 511

[0047] Forming groove 5111

[0048] Receiving groove 5112

[0049] Abutting projection 5113

[0050] Perforation 5114

[0051] Blocking portion 512

[0052] Inserting member 52

[0053] First stamping module 60

[0054] Guide seat 61

[0055] Moving groove 611

[0056] Pressing member 62

[0057] Pressing groove 621

[0058] Through hole 622

[0059] Extrusion elastic member 63

[0060] Stamping part 64

[0061] Second stamping module 70

[0062] Stopping assembly 80

[0063] Connecting member 81

[0064] Sliding channel 811

[0065] Avoidance groove 812

[0066] Stopping member 82

[0067] Stopping elastic member 83

[0068] Poking member 84

[0069] Tubular workpiece 900

[0070] Protruding portion 910 Specific implementation mode

[0071] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0072] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, it should be noted that the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0073] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection that can communicate with each other. It may be directly connected or indirectly connected through an intermediate medium. It may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances. Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0074] Please refer to Figure 1 and Figure 3 , an embodiment of the present application provides a stamping die 100 for stamping and forming a protruding portion 910 on the inner wall of a tubular workpiece 900. Among them, the tubular workpiece 900 can be a connecting sleeve or a transmission sleeve of a medical device, a processing device, etc. For the convenience of understanding and description, in the embodiment of the present application, the tubular workpiece 900 is taken as an example of the connecting sleeve of a medical device, and the first direction is defined as Figure 1 , Figure 2 and Figure 4 the Z-axis direction shown, the second direction is defined as Figure 1 , Figure 2 and Figure 4 the X-axis direction shown, the third direction is defined as Figure 1 , Figure 2 and Figure 4 the Y-axis direction shown. The first direction, the second direction, and the third direction are perpendicular to each other pairwise. Obviously, this is not a limitation on the embodiment of the present application.

[0075] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 In this embodiment, the stamping die 100 includes an upper die 10, a lower die 20, a carrier 30, a guiding assembly 40, two forming assemblies 50, a first stamping module 60 and a second stamping module 70.

[0076] The lower die 20 is adapted to be closed with the upper die 10 in a first direction; the carrier 30 is arranged on the lower die 20, and the carrier 30 is used for carrying the tubular workpiece 900 that can move in a second direction.

[0077] The guiding assembly 40 is arranged on the lower die 20 and is spaced from the carrier 30 in the second direction. The guiding assembly 40 includes a fixing member 41, a guiding member 42 and a supporting elastic member 43. The fixing member 41 is arranged on the lower die 20, and the fixing member 41 is spaced from the carrier 30 in the second direction; the guiding member 42 is arranged on the fixing member 41, and the guiding member 42 extends towards the carrier 30 in the second direction. A first guiding groove 421 and a second guiding groove 422 which are spaced in the first direction are formed at one end of the guiding member 42 close to the carrier 30. The distance between one ends of the first guiding groove 421 and the second guiding groove 422 close to the carrier 30 is smaller than the distance between one ends of the first guiding groove 421 and the second guiding groove 422 far from the carrier 30. The supporting elastic member 43 is sleeved on the guiding member 42, and one end of the supporting elastic member 43 is connected to the fixing member 41.

[0078] The two forming assemblies 50 are respectively sleeved on opposite sides of the guiding member 42 in the first direction. The two forming assemblies 50 are spaced in the first direction and can respectively slide along the first guiding groove 421 and the second guiding groove 422. The two forming assemblies 50 are connected to one end of the supporting elastic member 43 far from the fixing member 41. Forming grooves 5111 are respectively formed on one sides of the two forming assemblies 50 away from each other. When the tubular workpiece 900 moves towards the two forming assemblies 50, the two forming assemblies 50 are inserted into the tubular workpiece 900 and move away from each other under the guiding action of the first guiding groove 421 and the second guiding groove 422 to support the tubular workpiece 900.

[0079] The first stamping module 60 is inserted on one side of the upper die 10 facing the lower die 20; the second stamping module 70 is inserted on one side of the lower die 20 facing the upper die 10. The first stamping module 60 and the second stamping module 70 are respectively arranged opposite to one of the two forming assemblies 50. The first stamping module 60 and the second stamping module 70 are used to cooperate with the forming grooves 5111 formed on the adjacent forming assemblies 50 when the upper die 10 and the lower die 20 are closed to form the protrusions 910 on the inner wall of the tubular workpiece 900.

[0080] Specifically, the protruding part 910 is a convex hull. When the stamping die 100 stamps and forms the protruding part 910 on the inner wall of the tubular workpiece 900, first place the tubular workpiece 900 on the carrier 30, and push the tubular workpiece 900 to move along the second direction towards the two forming components 50. Then, the two forming components 50 are inserted into the tubular workpiece 900 and slide in the corresponding first guiding groove 421 or second guiding groove 422 driven by the tubular workpiece 900. Since the distance between the ends of the first guiding groove 421 and the second guiding groove 422 close to the carrier 30 is smaller than the distance between the ends of the first guiding groove 421 and the second guiding groove 422 far from the carrier 30, the two forming components 50 move away from each other and support the tubular workpiece 900 under the guiding action of the first guiding groove 421 and the second guiding groove 422. Then, the upper die 10 and the lower die 20 are closed, and the first stamping module 60 and the second stamping module 70 respectively cooperate with the forming grooves 5111 formed on the adjacent forming components 50 to form the protruding part 910 on the inner wall of the tubular workpiece 900. After the protruding part 910 on the inner wall of the tubular workpiece 900 is stamped and formed, the supporting elastic member 43 drives the two forming components 50 to move towards the carrier 30, the tubular workpiece 900 moves away from the guiding component 40 along the second direction at the same time, and the two forming components 50 move closer to each other and separate from the tubular workpiece 900 under the guiding action of the first guiding groove 421 and the second guiding groove 422.

[0081] In this embodiment, the upper die 10 includes an upper support plate 11, an upper floating plate 12 and a first buffer elastic member 13. The upper support plate 11 and the upper floating plate 12 are arranged at intervals along the first direction. The upper floating plate 12 is located on the side of the upper support plate 11 close to the lower die 20. The first buffer elastic member 13 is arranged between the upper support plate 11 and the upper floating plate 12, and both ends of the first buffer elastic member 13 are respectively connected to the upper support plate 11 and the upper floating plate 12. The first stamping module 60 is inserted into the side of the upper floating plate 12 facing the lower die 20.

[0082] The lower die 20 includes a lower support plate 21, a lower floating plate 22 and a second buffer elastic member 23. The lower support plate 21 and the lower floating plate 22 are arranged at intervals along the first direction. The lower floating plate 22 is located on the side of the lower support plate 21 close to the upper die 10. The second buffer elastic member 23 is arranged between the lower support plate 21 and the lower floating plate 22, and both ends of the second buffer elastic member 23 are respectively connected to the lower support plate 21 and the lower floating plate 22. The carrier 30 and the fixing member 41 of the guiding component 40 are both arranged on the side of the lower floating plate 22 facing the upper die 10. The second stamping module 70 is inserted into the side of the lower floating plate 22 facing the upper die 10.

[0083] When the upper die 10 and the lower die 20 are closed, the first buffer elastic member 13 and the second buffer elastic member 23 provide buffering, which is beneficial to reducing the probability of the stamping die 100 damaging the tubular workpiece 900.

[0084] Please refer toFigure 1 , Figure 4 and Figure 5 , in this embodiment, both the first guiding groove 421 and the second guiding groove 422 include a first guiding section 4211, an inclined section 4212 and a second guiding section 4213 that are sequentially connected along the second direction. Both the first guiding section 4211 and the second guiding section 4213 extend along the second direction. The first guiding section 4211 is located on the side of the inclined section 4212 close to the carrier 30. The distance between the first guiding sections 4211 of the first guiding groove 421 and the second guiding groove 422 is less than the distance between the second guiding sections 4213 of the first guiding groove 421 and the second guiding groove 422. The included angle between the extending direction of the inclined section 4212 and the second direction is an acute angle. When the two forming assemblies 50 slide to the first guiding sections 4211 of the first guiding groove 421 and the second guiding groove 422 respectively, the two forming assemblies 50 approach each other, so as to facilitate the insertion of the two forming assemblies 50 into the tubular workpiece 900 and facilitate the rapid detachment of the two forming assemblies 50 from the tubular workpiece 900 after the stamping of the protruding portion 910 is completed; when the two forming assemblies 50 slide to the second guiding sections 4213 of the first guiding groove 421 and the second guiding groove 422 respectively, the two forming assemblies 50 move away from each other, so as to facilitate the two forming assemblies 50 to support the tubular workpiece 900; in addition, by providing the inclined section 4212, it is convenient for the forming assembly 50 to slide between the first guiding section 4211 and the second guiding section 4213, and is beneficial to reducing the probability of jamming between the forming assembly 50 and the corresponding first guiding groove 421 or second guiding groove 422.

[0085] In this embodiment, each forming assembly 50 includes a support member 51 and a plug-in member 52. The guiding member 42 is located between the support members 51 of the two forming assemblies 50. The forming groove 5111 is formed on the side of the support member 51 facing away from the guiding member 42. One end of the supporting elastic member 43 away from the fixing member 41 abuts against the support members 51 of the two forming assemblies 50. The support member 51 is used to insert into the tubular workpiece 900 when the tubular workpiece 900 moves towards the two forming assemblies 50; the plug-in member 52 is inserted into the support member 51 and extends into the corresponding first guiding groove 421 or second guiding groove 422. The plug-in member 52 is used to drive the corresponding support member 51 to support the tubular workpiece 900 or disengage from the tubular workpiece 900 under the guiding action of the corresponding first guiding groove 421 or second guiding groove 422. Thus, when it is necessary to install the forming assembly 50, only need to insert the plug-in member 52 through the support member 51 into the corresponding first guiding groove 421 or second guiding groove 422, which is beneficial to improving the convenience of installing the forming assembly 50.

[0086] In this embodiment, the support member 51 includes a support portion 511 and a resisting portion 512. The support portion 511 extends in the second direction. The guiding member 42 is located between the support portions 511 of the two support members 51. The forming groove 5111 is formed on the side of the support portion 511 facing away from the guiding member 42. The plug-in member 52 is inserted into the support portion 511 and extends into the corresponding first guiding groove 421 or the second guiding groove 422. The support portion 511 is configured to insert into the tubular workpiece 900 when the tubular workpiece 900 moves towards the two forming assemblies 50. The resisting portion 512 is connected to the end of the support portion 511 away from the carrier member 30. The size of the cross-section of the resisting portion 512 in the second direction is larger than the size of the cross-section of the support portion 511 in the second direction. The end of the support elastic member 43 away from the fixing member 41 abuts against the resisting portion 512. The resisting portion 512 resists the tubular workpiece 900 when the tubular workpiece 900 moves towards the two forming assemblies 50, so that the support member 51 drives the plug-in member 52 to slide in the corresponding first guiding groove 421 or the second guiding groove 422 under the pressing action of the tubular workpiece 900. Thus, by providing the support portion 511, it is convenient to support the tubular workpiece 900. By providing the resisting portion 512, it is convenient to assemble the support elastic member 43 and to resist the tubular workpiece 900 after the support portion 511 is inserted into the tubular workpiece 900, which is beneficial to improving the accuracy of the synchronous movement of the support member 51 with the tubular workpiece 900, and further beneficial to improving the accuracy of the support member 51 to support and disengage from the tubular workpiece 900.

[0087] In this embodiment, two avoiding grooves 423 extending in the second direction are further formed at the end of the guiding member 42 close to the carrier member 30. The two avoiding grooves 423 are respectively located on the side of the guiding member 42 facing the first stamping module 60 and on the side of the guiding member 42 facing the second stamping module 70. A receiving groove 5112 disposed opposite to the corresponding avoiding groove 423 is formed on the side of the support member 51 facing the guiding member 42. Abutting protrusions 5113 protrude from the bottom of the receiving groove 5112. When the two forming assemblies 50 move away from each other, the abutting protrusions 5113 abut against the side wall of the guiding member 42 and support the corresponding support member 51, which is beneficial to improving the stability of the support member 51 in supporting the tubular workpiece 900. When the two forming assemblies 50 move closer to each other, the receiving groove 5112 avoids the side wall of the guiding member 42, and the avoiding groove 423 avoids the corresponding abutting protrusions 5113, so that the two support members 51 can be further close to each other, and thus it is convenient for the two support members 51 to completely disengage from the tubular workpiece 900.

[0088] In this embodiment, one end of the avoidance groove 423 away from the carrier 30 has a guiding inclined surface 4231 extending from the groove bottom of the avoidance groove 423 to the side of the guiding member 42 facing the first stamping module 60 or the side of the guiding member 42 facing the second stamping module 70. The guiding inclined surface 4231 guides when the corresponding abutting protrusion 5113 moves into and out of the corresponding avoidance groove 423, thereby facilitating the reduction of the probability of jamming between the abutting protrusion 5113 and the corresponding avoidance groove 423.

[0089] In this embodiment, the supporting portion 511 of the supporting member 51 is further provided with a through hole 5114 extending along the third direction and communicating with the receiving groove 5112. The plug-in member 52 is inserted through the through hole 5114 and extends into the corresponding first guiding groove 421 or the second guiding groove 422, so as to facilitate the assembly of the supporting member 51 and the plug-in member 52.

[0090] In this embodiment, there are multiple first guiding grooves 421 and multiple second guiding grooves 422. One first guiding groove 421 and one second guiding groove 422 are combined into a pair and divided into multiple pairs. The side walls of the guiding member 42 located on both sides in the third direction are both provided with the same number of multiple pairs of first guiding grooves 421 and second guiding grooves 422. The adjacent two pairs of first guiding grooves 421 and second guiding grooves 422 share the same center line. The number of the plug-in members 52 is the sum of the numbers of the first guiding grooves 421 and the second guiding grooves 422. The multiple plug-in members 52 are divided into two equal groups. Each group of plug-in members 52 is inserted into the corresponding supporting member 51 at intervals and extends into the corresponding multiple first guiding grooves 421 or the corresponding multiple second guiding grooves 422 respectively. When the two forming assemblies 50 approach or move away from each other, the multiple plug-in members 52 drive the corresponding supporting members 51 to move and support the corresponding supporting members 51 from multiple positions, thereby facilitating the improvement of the stability of the supporting member 51 in supporting and disengaging from the tubular workpiece 900.

[0091] Please refer to Figure 2 and Figure 4 In this embodiment, the carrier 30 is provided with a guiding hole 31 extending along the second direction and penetrating through the opposite sides of the carrier 30. The guiding hole 31 is used for the tubular workpiece 900 to pass through and guides the moving direction of the tubular workpiece 900, thereby facilitating the improvement of the accuracy of the two forming assemblies 50 inserted into the tubular workpiece 900.

[0092] Please refer to Figure 2 and Figure 4, in this embodiment, the first stamping module 60 and the second stamping module 70 both include a guide seat 61, a pressing member 62, a pressing elastic member 63 and a stamping member 64. The guide seat 61 is inserted into one side of the upper floating plate 12 of the upper die 10 facing the lower die 20 or one side of the lower floating plate 22 of the lower die 20 facing the upper die 10. The guide seat 61 is provided with a moving groove 611 extending in the first direction; the pressing member 62 is slidably inserted into the moving groove 611 along the first direction and extends towards the lower die 20 or the upper die 10; one end of the pressing elastic member 63 is connected to one end of the pressing member 62 located inside the guide seat 61, the other end of the pressing elastic member 63 is connected to the guide seat 61, one end of the stamping member 64 is connected to the guide seat 61, and the other end of the stamping member 64 slidably passes through the pressing member 62 and extends towards the lower die 20 or the upper die 10. When the upper die 10 and the lower die 20 are closed, the pressing member 62 abuts against the side wall of the tubular workpiece 900, and the pressing elastic member 63 drives the pressing member 62 to elastically press the tubular workpiece 900, so that the probability of damaging the tubular workpiece 900 can be effectively reduced while pressing the tubular workpiece 900. The stamping member 64 extends out of the pressing member 62 and cooperates with the forming groove 5111 formed on the adjacent forming assembly 50 to form the protrusion 910 on the inner wall of the tubular workpiece 900, which is beneficial to improving the accuracy of stamping and forming the protrusion 910 of the tubular workpiece 900.

[0093] In this embodiment, a pressing groove 621 extending in the second direction is formed on one side of the pressing member 62 facing away from the corresponding pressing elastic member 63. A through hole 622 extending in the first direction is formed at the bottom of the pressing groove 621. The stamping member 64 slidably passes through the through hole 622. The pressing groove 621 is used for concave-convex cooperation with the side wall of the tubular workpiece 900 and restricting the movement of the tubular workpiece 900 in the third direction, which is beneficial to improving the accuracy of forming the protrusion 910 of the tubular workpiece 900 by the cooperation of the stamping member 64 and the forming groove 5111 formed on the adjacent forming assembly 50.

[0094] Please refer to Figure 1 , Figure 2 and Figure 4 , in this embodiment, the stamping die 100 further includes a stop assembly 80. The stop assembly 80 is arranged on the lower floating plate 22 of the lower die 20 and is located on one side of the carrier 30 away from the fixing member 41. The stop assembly 80 is used for stopping one end of the tubular workpiece 900 away from the two forming assemblies 50 when the two forming assemblies 50 support the tubular workpiece 900, so as to effectively prevent the tubular workpiece 900 from disengaging from the two forming assemblies 50 in the first direction when the first stamping module 60 and the second stamping module 70 stamp the tubular workpiece 900, which is beneficial to improving the accuracy of stamping the tubular workpiece 900 by the first stamping module 60 and the second stamping module 70.

[0095] In this embodiment, the stopper assembly 80 includes a connecting member 81, a stopper 82, a stopper elastic member 83 and a toggle member 84. The connecting member 81 is provided on the lower floating plate 22 of the lower mold 20 and is located on the side of the supporting member 30 away from the fixed member 41. The connecting member 81 extends along the third direction and is staggered with the supporting member 30 along the second direction. The connecting member 81 is provided with a sliding channel 811 and an avoidance groove 812 extending and communicating along the third direction. The sliding channel 811 is provided in the middle of the connecting member 81 and is communicated with the end of the connecting member 81 close to the supporting member 30. The avoidance groove 812 is provided on the side wall of the connecting member 81. The stopper 82 is provided to slide in the sliding channel 811. The stopper elastic member 83 is disposed in the sliding channel 811, and its two ends are respectively connected to the stopper 82 and the inner wall of the sliding channel 811 away from the carrier 30. The stopper elastic member 83 is used to drive the stopper 82 to extend out of the sliding channel 811, so that the stopper 82 stops the tubular workpiece 900 away from one end of the two forming assemblies 50. The toggle member 84 is disposed through the avoidance groove 812 and connected to the stopper 82. The toggle member 84 is used to drive the stopper 82 to move into the sliding channel 811 under the action of an external force. In this way, the stopper 82 can easily stop and avoid the tubular workpiece 900.

[0096] In summary, in the stamping die 100 according to the embodiment of the present application, a first guiding groove 421 and a second guiding groove 422 which are arranged at intervals along a first direction are formed at one end of a guiding member 42 of a guiding assembly 40 close to a bearing member 30, and two forming assemblies 50 are sleeved on opposite sides of the guiding member 42 along the first direction and can slide along the first guiding groove 421 and the second guiding groove 422. When the stamping die 100 stamps and forms a protruding portion 910 on the inner wall of a tubular workpiece 900, the two forming assemblies 50 are inserted into the tubular workpiece 900 and slide in the corresponding first guiding groove 421 or second guiding groove 422 respectively under the drive of the tubular workpiece 900. Since the distance between one ends of the first guiding groove 421 and the second guiding groove 422 close to the bearing member 30 is smaller than the distance between one ends of the first guiding groove 421 and the second guiding groove 422 far from the bearing member 30, the two forming assemblies 50 move away from each other and support the tubular workpiece 900 under the guiding action of the first guiding groove 421 and the second guiding groove 422, so that it is convenient for a first stamping module 60 and a second stamping module 70 to cooperate with forming grooves 5111 formed on adjacent forming assemblies 50 respectively to stamp and form two protruding portions 910 on the inner wall of the tubular workpiece 900 at one time; by arranging a supporting elastic member 43, after the protruding portion 910 on the inner wall of the tubular workpiece 900 is stamped and formed, the supporting elastic member 43 drives the two forming assemblies 50 to move towards the bearing member 30, the tubular workpiece 900 moves away from the guiding assembly 40 along a second direction at the same time, and the two forming assemblies 50 move close to each other and separate from the tubular workpiece 900 under the guiding action of the first guiding groove 421 and the second guiding groove 422. In this way, the stamping die 100 according to the embodiment of the present application improves the convenience during material discharging, and can stamp and form two protruding portions 910 on the inner wall of the tubular workpiece 900 at one time, so that the symmetry and concentricity of the two protruding portions 910 are relatively high, thereby improving the forming yield of the tubular workpiece 900.

[0097] For those skilled in the art, it is obvious that the present application is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present application, the present application can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Therefore, it is intended to cover all changes falling within the meaning and scope of the equivalent elements of the claims in the present application.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A stamping die, characterized in that, Comprising: Upper die; Lower die, the lower die being matingly adapted with the upper die in a first direction; Carrier, provided on the lower die, for carrying a tubular workpiece movable in a second direction perpendicular to the first direction; Guiding assembly, including a fixing member, a guiding member and a supporting elastic member, the fixing member being provided on the lower die, and the fixing member and the carrier being spaced apart in the second direction, the guiding member being provided on the fixing member and extending towards the carrier in the second direction, a first guiding groove and a second guiding groove being provided at one end of the guiding member close to the carrier and spaced apart in the first direction, the distance between one ends of the first guiding groove and the second guiding groove close to the carrier being smaller than the distance between one ends of the first guiding groove and the second guiding groove away from the carrier, the supporting elastic member being sleeved on the guiding member, and one end of the supporting elastic member being connected to the fixing member; Two forming assemblies, respectively sleeved on opposite sides of the guiding member in the first direction, the two forming assemblies being spaced apart in the first direction and respectively slidable along the first guiding groove and the second guiding groove, the two forming assemblies being connected to one end of the supporting elastic member away from the fixing member, forming grooves being respectively provided on one sides of the two forming assemblies away from each other, and the two forming assemblies being configured to insert into the tubular workpiece when the tubular workpiece moves towards the two forming assemblies and move away from each other under the guiding action of the first guiding groove and the second guiding groove to support the tubular workpiece; First stamping module, inserted on one side of the upper die facing the lower die; Second stamping module, inserted on one side of the lower die facing the upper die, the first stamping module and the second stamping module being respectively disposed opposite to one of the two forming assemblies, and being configured to cooperate with the forming groove provided on the adjacent forming assembly when the upper die and the lower die are closed to form a protrusion on the inner wall of the tubular workpiece.

2. The stamping die according to claim 1, wherein, Both the first guiding groove and the second guiding groove include a first guiding section, an inclined section and a second guiding section sequentially connected in the second direction, the first guiding section and the second guiding section both extending in the second direction, the first guiding section being located on one side of the inclined section close to the carrier, the distance between the first guiding sections of the first guiding groove and the second guiding groove being smaller than the distance between the second guiding sections of the first guiding groove and the second guiding groove, and the extending direction of the inclined section forming an acute angle with the second direction.

3. The stamping die according to claim 1, wherein Each of the forming assemblies includes: Supporting member, the guiding member being located between the supporting members of the two forming assemblies, the forming groove being provided on one side of the supporting member facing away from the guiding member, one end of the supporting elastic member away from the fixing member abutting against the supporting members of the two forming assemblies, and the supporting member being configured to insert into the tubular workpiece when the tubular workpiece moves towards the two forming assemblies; The plug-in member is inserted into the support member and extends into the corresponding first guiding groove or the second guiding groove. The plug-in member is configured to drive the corresponding support member to support or disengage from the tubular workpiece under the guiding action of the corresponding first guiding groove or the second guiding groove.

4. The stamping die according to claim 3, characterized in that, The support member includes: A support portion that extends along the second direction. The forming groove is formed on the side of the support portion facing away from the guiding member. The plug-in member is inserted into the support portion and extends into the corresponding first guiding groove or the second guiding groove. The support portion is configured to insert into the tubular workpiece when the tubular workpiece moves towards the two forming components. A resisting portion that is connected to the end of the support portion away from the carrier member. The end of the support elastic member away from the fixing member abuts against the resisting portion. The resisting portion is configured to resist the tubular workpiece, so that the support member drives the plug-in member to slide in the corresponding first guiding groove or the second guiding groove under the pressing action of the tubular workpiece.

5. The stamping die according to claim 3, characterized in that, Two avoiding grooves that extend along the second direction are further formed at the end of the guiding member close to the carrier member. The two avoiding grooves are respectively located on the side of the guiding member facing the first stamping module and the side of the guiding member facing the second stamping module. A receiving groove that is disposed opposite to the corresponding avoiding groove is formed on the side of the support member facing the guiding member. A butting protrusion protrudes from the bottom of the receiving groove. The butting protrusion is configured to abut against the guiding member when the two forming components move away from each other. The avoiding groove is configured to avoid the corresponding butting protrusion when the two forming components move close to each other.

6. The stamping die according to claim 5, characterized in that, One end of the avoiding groove away from the carrier member has a guiding inclined surface that extends from the bottom of the avoiding groove towards the side of the guiding member facing the first stamping module or the side of the guiding member facing the second stamping module.

7. The stamping die according to claim 1, wherein The carrier member is provided with a guiding hole that extends along the second direction and penetrates through the opposite sides of the carrier member. The guiding hole is configured to allow the tubular workpiece to pass through and guide the moving direction of the tubular workpiece.

8. The stamping die according to claim 1, characterized in that, Both the first stamping module and the second stamping module include: A guiding seat that is inserted into the side of the upper die facing the lower die or the side of the lower die facing the upper die. A pressing member that slidably inserts into the guiding seat along the first direction and extends towards the lower die or the upper die. An extrusion elastic member, one end of which is connected to the end of the pressing member located inside the guiding seat, and the other end of which is connected to the guiding seat. The extrusion elastic member is configured to drive the pressing member to elastically press the tubular workpiece when the upper die and the lower die are closed. A stamping member, one end of which is connected to the guiding seat, and the other end of which slidably penetrates through the pressing member and extends towards the lower die or the upper die. The stamping member is configured to extend out of the pressing member when the upper die and the lower die are closed and cooperate with the forming groove formed on the adjacent forming component to form the protruding portion on the inner wall of the tubular workpiece.

9. The stamping die according to claim 1, characterized in that, The stamping die also includes a stop assembly, which is arranged on the lower die and located on the side of the supporting member away from the fixing member. The stop assembly is used to stop the tubular workpiece from moving away from one end of the two forming assemblies when the two forming assemblies support the tubular workpiece.

10. The stamping die according to claim 9, characterized in that, The stop assembly comprises: a connecting member provided on the lower mold and located on a side of the bearing member away from the fixing member, the connecting member extending along the third direction and being offset with the bearing member along the second direction, the connecting member being provided with a sliding channel and an avoidance groove extending and communicating along the third direction, the sliding channel being provided in the middle of the connecting member and communicating with an end of the connecting member close to the bearing member, the avoidance groove being provided on a side wall of the connecting member, and the first direction, the second direction and the third direction being perpendicular to each other; a stopper, slidably disposed in the sliding channel; a stop elastic member, disposed in the sliding channel, with both ends of the stop elastic member being connected to the stop member and an inner wall of the sliding channel away from the bearing member, respectively, and the stop elastic member being used to drive the stop member to extend out of the sliding channel so that the stop member stops the tubular workpiece from moving away from one end of the two forming assemblies; The toggle member is arranged in the avoidance groove and connected with the stop member, and is used for driving the stop member to move into the sliding channel under the action of an external force.

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