Multi-station circulating device and rivet pressing die formed by multi-station circulating device

Abstract

The utility model provides a multi-station circulating device and a rivet pressing die formed by the multi-station circulating device. The multi-station circulating device comprises a base stripper plate, a rotary table stripper plate and M tools symmetrically distributed in the rotary table stripper plate. The rotary table stripper plate is located above the base stripper plate. M first through holes are formed in the rotary table stripper plate, M second through holes matched with the first through holes in a one-to-one correspondence mode are formed in the base stripper plate, positioning pieces are arranged between the first through holes and the second through holes, and the bottoms of the positioning pieces are connected with the bottoms of the second through holes through first elastic pieces. And a downward pressing driving piece is arranged at the top of the positioning piece and can drive the positioning piece to move in the first through hole and the second through hole. Switching between the adjacent tools can be achieved, workpiece processing operation only needs to be conducted on one tool, preparatory work can be conducted on other tools, and the workpiece processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting tooling equipment, in particular to a multi-station circulation device and a riveting die formed therefrom. Background Art

[0002] When bolting and riveting workpieces, such as sheet metal parts in air conditioner panels, employees need to place the chassis and bolts, perform single punching, and laboriously extract the finished product. The existing bolt riveting tooling results in extremely low production efficiency and great labor intensity for employees. At the same time, due to the lack of reasonable positioning inserts, quality problems such as poor product consistency are prone to occur.

[0003] As mentioned above, the existing riveting tooling can only improve the riveting efficiency by adding riveting tooling. During the riveting process of the workpiece bolts, the riveting tooling needs to cooperate with the upper mold and the lower mold to achieve riveting. If the riveting tooling is simply increased, the complete riveting structure of the upper mold and the lower mold needs to be added at the same time, which will lead to a significant increase in the riveting cost and a significant increase in the area occupied by the riveting tooling.

[0004] Similarly, existing workpiece processing tools, especially tools for closing the upper and lower molds, all improve the closing efficiency by adding an integral device of the upper and lower molds at the same time in order to improve efficiency, which also has the problem of increased mold costs. Utility Model Content

[0005] In order to overcome the problems existing in the related technology, one of the purposes of the utility model is to provide a multi-station circulation device, which can realize the switching between adjacent toolings. It is only necessary to perform workpiece processing operations on one of the toolings, and the preparatory work before the processing operation can be performed on the other toolings, thereby improving the workpiece processing efficiency.

[0006] A multi-station circulation device, comprising a base stripping plate, a turntable stripping plate, and M tooling symmetrically distributed on the turntable stripping plate; the turntable stripping plate is located above the base stripping plate; M is an integer greater than 1;

[0007] The turntable stripping plate is provided with M first through holes, and the base stripping plate is provided with M second through holes which match the first through holes one by one. A positioning member is provided between the first through hole and the second through hole, and the bottom of the positioning member is connected to the bottom of the second through hole through a first elastic member; a downward pressing driving member is provided on the top of the positioning member, and the downward pressing driving member can drive the positioning member to move in the first through hole and the second through hole, so that the base stripping plate and the turntable stripping plate are fixed or separated.

[0008] The device of the present application can ensure that workpiece processing operations are performed on one of the toolings, and preparatory work for workpiece processing is performed on the adjacent tooling of the tooling. In this way, only one operating station is set up, which simplifies the structure of the overall device, saves preparation time for workpiece processing, and improves workpiece processing efficiency.

[0009] In a preferred technical solution of the utility model, the push-down driving member includes a push rod and a handle, the push rod is located in the first through hole, the bottom of the push rod abuts against the positioning member, the top of the push rod is connected to one end of the handle, and the other end of the handle extends to the outside of the tooling, and the handle drives the positioning member to move in the first through hole and the second through hole through the push rod.

[0010] In the present application, the handle extends to the outside of the tooling, which is convenient for operating the end of the handle away from the push rod. The connection between the handle and the push rod is similar to a lever structure. When the handle is lifted away from one end of the push rod, the position of the push rod is pressed down, so that the positioning piece is also pressed down to be only located inside the second through hole. At this time, the base stripping plate and the turntable stripping plate are disengaged from each other; then a rotational thrust is applied to the handle, and the entire turntable stripping plate will rotate until the first through hole and the second through hole in the adjacent tooling in the turntable stripping plate are aligned again. The positioning piece will extend upward under the action of the first spring, thereby re-fixing the base stripping plate and the turntable stripping plate.

[0011] In a preferred technical solution of the utility model, a second spring is arranged on the outside of the push rod, the second spring is nested on the outside of the push rod, and the two ends of the second spring are respectively fixedly connected to the outer side wall of the push rod and the inner side wall of the first through hole.

[0012] The second spring is provided to facilitate the reset of the ejector rod. In actual operation, the second spring cooperates with the first spring. When the turntable stripper plate rotates relative to the base stripper plate, since the angle between the M tooling is 360° / M, that is, when the turntable stripper plate rotates 360° / M, the positioning member will be aligned with the next first through hole. At this time, under the action of the first spring, the positioning member will pass through the first through hole. At this time, under the auxiliary action of the second spring, the positioning member can quickly drive the ejector rod to reset, and the handle is also reset synchronously. The second spring cooperates with the first spring to ensure that the turntable stripper plate is smoothly and quickly reset when it rotates to 360° / M, and realize the rapid fixation of the turntable stripper plate and the base stripper plate.

[0013] In a preferred technical solution of the utility model, a rotating drive member is arranged between two adjacent toolings, and the rotating drive member includes a vertical drive member and a horizontal drive member. The vertical drive member is used to drive the handle to rise and fall, and the horizontal drive member is used to push the handle to rotate.

[0014] This application requires the provision of three vertical drive members corresponding to the handle, while only one horizontal drive member may be provided. The horizontal drive member may be a horizontally extended cylinder. When the horizontal drive member is extended, a horizontal thrust is given to the handle. At this time, the turntable stripping plate rotates relative to the base stripping plate until it rotates to 360° / M. The positioning member is reset to the first through hole and the second through hole under the action of the first spring, and the ejector rod is reset under the action of the second spring, driving the handle to reset.

[0015] The second purpose of the present application is to improve a riveting die, comprising an upper die and a lower die, wherein the lower die is provided with a multi-station circulation device as described above; the multi-station circulation device comprises a base stripping plate, a turntable stripping plate, and M riveting tools symmetrically distributed in the turntable stripping plate.

[0016] An upper die is arranged on one of the riveting tools for riveting operation, and installation preparation work before riveting is carried out at an adjacent position of the riveting tool, thereby improving the riveting efficiency of the workpiece and avoiding the complex structure of the prior art in which the upper die and the riveting tool are arranged one by one, simplifying the structure of the riveting die, reducing the occupied area, and improving the riveting efficiency of the workpiece.

[0017] In a preferred technical solution of the utility model, a lifting pad is provided on the upper surface of the turntable stripping plate, and the lifting pad is used to place the workpiece. The lifting pad is connected to a lifting drive component, and the lifting drive component can drive the lifting pad to rise and fall relative to the turntable stripping plate.

[0018] The air inlet pipe is connected to the gas generating device through an electromagnetic control valve and an air receiving valve. According to the set PLC program, the electromagnetic control valve controls the air receiving valve to open, and the gas enters the telescopic cylinder through the air receiving valve and the air inlet port, causing the cylinder push rod to rise, thereby realizing the rise of the lifting pad.

[0019] In a preferred technical solution of the utility model, the jacking drive component is located below the turntable stripping plate, and the jacking drive component includes a telescopic cylinder, in which an air inlet pipe port and a cylinder top rod are provided, and the cylinder top rod penetrates the turntable stripping plate and abuts against the jacking pad; when gas enters the telescopic cylinder through the air inlet port, the cylinder top rod drives the jacking pad to rise relative to the turntable stripping plate.

[0020] In a preferred technical solution of the utility model, the upper mold is adapted and installed with one of the riveting tools, the riveting tool is provided with a rivet column for placing bolts, the outer side of the turntable stripping plate is provided with a limit piece for positioning the workpiece, the turntable stripping plate is provided with a guide sleeve, and the upper mold is provided with a guide column adapted with the guide sleeve.

[0021] During the mold closing process, the guide column moves along the guide sleeve to ensure that the upper mold and the lower mold will not be offset during the mold closing process. The limiter may specifically include a column and a positioning insert located in the base stripper plate. The column and the positioning insert are distributed at different positions of the workpiece to position the workpiece to ensure that the workpiece will not be offset during the riveting process. Since the riveting process is only performed on the riveting tooling at one position, the position of the positioning insert and the column can be set according to the specific shape of the workpiece and the position of the riveting tooling that overlaps with the upper mold.

[0022] The beneficial effects of the utility model are:

[0023] The utility model provides a multi-station circulation device, including a base stripping plate, a turntable stripping plate, and M tooling symmetrically distributed in the turntable stripping plate; the turntable stripping plate is located above the base stripping plate; M is an integer greater than 1; the turntable stripping plate is provided with M first through holes, the base stripping plate is provided with M second through holes that match the first through holes one by one, the positioning member is located in the first through hole and the second through hole, and the bottom of the positioning member is connected to the bottom of the second through hole through a first spring, and the top of the positioning member is provided with a downward pressing drive member. In the present application, the connection relationship between the turntable stripping plate and the base stripping plate can be changed by changing the position of the positioning member. When the positioning member is located in the first through hole and the second through hole at the same time, the turntable stripping plate and the base stripping plate are fixed together; when the positioning member is only located in the second through hole under the action of the downward driving member, the turntable stripping plate and the base stripping plate are disengaged. At this time, the turntable stripping plate and the base stripping plate are disengaged, and the turntable stripping plate can be rotated relative to the base stripping plate. When the rotation angle is 360° / M, the positioning member is located in the first through hole and the second through hole at the same time under the elastic force of the first spring. At this time, the positions of the M tooling are rotated. The device of the present application can ensure that workpiece processing operations are performed on one of the toolings, and preparatory work for workpiece processing is performed on the tooling adjacent to the tooling. In this way, only one operating station is set up. For the mold device formed by the upper mold and the lower mold, only one upper mold can be set up, and multiple toolings that can rotate in a cycle are set in the lower mold. The tooling overlapping with the upper mold is subjected to mold closing processing, and the adjacent tooling is subjected to mold closing pre-processing. The circulation device of the present application can simplify the structure of the mold device, while saving the preparation time for workpiece processing and improving the workpiece processing efficiency.

[0024] The utility model also provides a riveting die including the above-mentioned multi-station circulation device, wherein an upper die is arranged on one of the riveting tools for riveting operation, and installation preparation work before riveting is performed at an adjacent position of the riveting tool, thereby improving the riveting efficiency of the workpiece and avoiding the complex structure of the prior art in which the upper die and the riveting tool are arranged in a one-to-one correspondence, thereby simplifying the structure of the riveting die, reducing the occupied area, and improving the riveting efficiency of the workpiece.

[0025] The utility model also provides a riveting method for the multi-station circulation device, which improves the riveting efficiency of the workpiece by sequentially performing the preparatory work and the riveting work on a plurality of riveting tools, while avoiding the complex structure of the prior art in which the upper mold and the riveting tool are arranged in a one-to-one correspondence, simplifies the structure of the riveting mold, reduces the floor space, and improves the riveting efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the pressure riveting device in Example 3;

[0027] Figure 2 It is a top view of the riveting device in Example 3;

[0028] Figure 3 for Figure 2 Schematic diagram of the cross section of AA;

[0029] Figure 4 for Figure 2 Schematic cross-section of the middle BB;

[0030] Figure 5 This is a schematic diagram of the structure of the workpiece and the bolt before riveting in Example 3;

[0031] Figure 6 This is a schematic diagram of the structure of the workpiece and bolt after riveting in Example 3.

[0032] Reference numerals:

[0033] 1. Solenoid control valve; 2. Air connection valve; 3. Rivet column; 4. Lifting pad; 42. Fixing bolt; 43. Cylinder push rod; 44. Turntable stripper plate; 45. Telescopic cylinder; 46. Inlet pipe port; 47. Lifting bottom support; 5. Riveting turntable; 6. Pressing drive member; 60. Handle; 61. Push rod; 62. Second spring; 64. Positioning member; 65. Fixing screw; 66. First spring; 67. Base stripper plate; 7. Push-pull fixture; 8. Rotating drive member; 9. Guide sleeve; 10. Guide column; 11. Positioning insert; 12. Column; 13. Workpiece; 14. Upper mold. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0035] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0036] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0037] Example 1

[0038] like Figure 1-Figure 4 As shown, a multi-station circulation device provided by the present application includes a base stripping plate 67, a turntable stripping plate 44, and M tooling symmetrically distributed in the turntable stripping plate 44; the turntable stripping plate 44 is located above the base stripping plate 67; M is an integer greater than 1;

[0039] The turntable stripping plate 44 is provided with M first through holes, and the base stripping plate 67 is provided with M second through holes which match the first through holes one by one. The positioning member 64 is located in the first through hole and the second through hole, and the bottom of the positioning member 64 is connected to the bottom of the second through hole through a first elastic member. A downward driving member 6 is provided on the top of the positioning member 64, and the downward driving member 6 can drive the positioning member 64 to move in the first through hole and the second through hole, so that the base stripping plate 67 and the turntable stripping plate 44 are fixed or separated.

[0040] In the present application, the connection relationship between the turntable stripping plate 44 and the base stripping plate 67 can be changed by changing the position of the positioning member 64. When the positioning member 64 is simultaneously located in the first through hole and the second through hole, the turntable stripping plate 44 and the base stripping plate 67 are fixed together; when the positioning member 64 is only located in the second through hole under the action of the downward driving member 6, the turntable stripping plate 44 and the base stripping plate 67 are disengaged. At this time, the turntable stripping plate 44 and the base stripping plate 67 are disengaged, and the turntable stripping plate 44 can be rotated relative to the base stripping plate 67. When the rotation angle is 360° / M, the positioning member 64 is simultaneously located in the first through hole and the second through hole under the elastic force of the first spring 66. At this time, the positions of the M tooling have rotated. The device of the present application can ensure that the workpiece 13 processing operation is performed on one of the toolings, and the preparatory work for the workpiece 13 processing is performed on the tooling adjacent to the tooling; for the mold device formed by the upper mold and the lower mold, only one upper mold can be set, and a plurality of toolings that can be cyclically rotated can be set in the lower mold, and the tooling overlapping the upper mold can be subjected to mold closing processing, and the adjacent tooling can be subjected to mold closing pre-processing. The circulation device of the present application can simplify the structure of the mold device, and at the same time save the preparation time for the workpiece processing, thereby improving the workpiece processing efficiency.

[0041] Example 2

[0042] like Figure 1-Figure 4 As shown, this embodiment is described by taking M=3 as an example, and the first elastic member can specifically be a first spring.

[0043] The present application provides a multi-station circulation device, which includes a base stripping plate 67, a turntable stripping plate 44, and three toolings symmetrically distributed in the turntable stripping plate 44; the turntable stripping plate 44 is located above the base stripping plate 67.

[0044] The turntable stripping plate 44 is provided with three first through holes, and the base stripping plate 67 is provided with three second through holes which match the first through holes one by one. The positioning member 64 is located in the first through hole and the second through hole, and the bottom of the positioning member 64 is connected to the bottom of the second through hole through a first spring 66. A downward driving member 6 is provided on the top of the positioning member 64, and the downward driving member 6 can drive the positioning member 64 to move in the first through hole and the second through hole, so that the base stripping plate 67 and the turntable stripping plate 44 are fixed or separated.

[0045] The turntable stripping plate 44 of the present application is a whole, and three toolings are arranged on the turntable stripping plate 44. The specific toolings can be determined according to the applicable scenario of the device. For example, when used in a riveting mold, the three toolings are riveting toolings.

[0046] Specifically, the pressing driving member 6 includes a push rod 61 and a handle 60. The push rod 61 is located in the first through hole. The bottom of the push rod 61 abuts against the positioning member 64. The top of the push rod 61 is connected to one end of the handle 60. The other end of the handle 60 extends to the outside of the tooling. The handle 60 drives the positioning member 64 to move in the first through hole and the second through hole through the push rod 61.

[0047] In the present application, the handle 60 extends to the outside of the tooling, which is convenient for operating the end of the handle 60 away from the push rod 61. The connection between the handle 60 and the push rod 61 is similar to a lever structure. When the handle 60 is lifted up away from one end of the push rod 61, the position of the push rod 61 is pressed down, so that the positioning member 64 is also pressed down to be only located inside the second through hole. At this time, the base stripping plate 67 and the turntable stripping plate 44 are disengaged from each other; then a rotational thrust is applied to the handle 60, and the entire turntable stripping plate 44 will rotate until the first through hole and the second through hole in the adjacent tooling in the turntable stripping plate 44 are aligned again. The positioning member 64 will extend upward under the action of the first spring 66 to achieve re-fixation of the base stripping plate 67 and the turntable stripping plate 44.

[0048] A second spring 62 is disposed outside the push rod 61 . The second spring 62 is nested outside the push rod 61 , and two ends of the second spring 62 are fixedly connected to the outer side wall of the push rod 61 and the inner side wall of the first through hole, respectively.

[0049] The second spring 62 is provided to facilitate the reset of the ejector 61. In actual operation, the second spring 62 and the first spring 66 cooperate with each other. When the turntable stripper plate 44 rotates relative to the base stripper plate 67, since the angle between the three fixtures is 120°, that is, when the turntable stripper plate 44 rotates 120°, the positioning member 64 will align with the next first through hole. At this time, under the action of the first spring 66, the positioning member 64 will pass through the first through hole. At this time, under the auxiliary action of the second spring 62, the positioning member 64 can quickly drive the ejector 61 to reset, and the handle 60 is also reset synchronously. The second spring 62 and the first spring 66 cooperate with each other to ensure that the turntable stripper plate 44 is smoothly and quickly reset when it rotates to 120°, so as to achieve rapid fixation of the turntable stripper plate 44 and the base stripper plate 67.

[0050] A rotary drive member 8 is provided between two adjacent toolings, and the rotary drive member 8 includes a vertical drive member and a horizontal drive member. The vertical drive member is used to drive the handle 60 to rise and fall, and the horizontal drive member is used to push the handle 60 to rotate.

[0051] In the present application, three handles 60 need to be provided, that is, a handle 60 needs to be provided between every two adjacent toolings, and three corresponding vertical drive members also need to be provided. If the tooling position needs to be rotated, that is, the turntable stripping plate 44 and the base stripping plate 67 are disengaged, it is necessary to lift three handles 60 at the same time to ensure that the three positioning members 64 are compressed into the second through hole. Therefore, the present application needs to provide three vertical drive members corresponding to the handle 60, while only one horizontal drive member can be provided. The horizontal drive member can be a horizontally extending cylinder. When the horizontal drive member extends, a horizontal thrust is given to the handle 60. At this time, the turntable stripping plate 44 rotates relative to the base stripping plate 67, until it rotates to 120°, the positioning member 64 is reset to the first through hole and the second through hole under the action of the first spring 66, and the push rod 61 is reset under the action of the second spring 62, driving the handle 60 to reset.

[0052] The device of the present application can ensure that the workpiece 13 processing operation is performed on one of the toolings, and the preparatory work for the workpiece 13 processing is performed on the adjacent tooling of the tooling. In this way, only one operating station is set up, which simplifies the structure of the overall device, saves the preparation time for the workpiece 13 processing, and improves the workpiece 13 processing efficiency.

[0053] Example 3

[0054] like Figure 1-Figure 6 As shown, a riveting mold provided by the present application includes an upper mold 14 and a lower mold, and the lower mold is provided with a multi-station circulation device as described in Example 2; the multi-station circulation device includes a base stripping plate 67, a turntable stripping plate 44, and M riveting tools symmetrically distributed in the turntable stripping plate 44.

[0055] During the riveting process, the upper mold 14 and the lower mold are closed, the workpiece 13 and the bolt are both located in the lower mold, and when the lower mold is pressed down, the bolt and the workpiece 13 are pressed together. In order to improve the riveting efficiency and reduce the volume and cost of the riveting mold, the present application sets three riveting tools in the turntable stripper plate 44, and the three riveting tools are arranged in a circle around the center line of the turntable stripper plate 44, and the angle between adjacent riveting tools is 120°.

[0056] In the present application, three riveting turntables 5 are arranged in the turntable stripping plate 44, and a corresponding riveting station is arranged on each riveting turntable 5. The riveting turntable 5 is provided with a rivet column 3 for placing a bolt.

[0057] A lifting pad 4 is provided on the upper surface of the turntable stripper plate 44 , and the lifting pad 4 is used to place the workpiece 13 . The lifting pad 4 is connected to a lifting driving component, and the lifting driving component can drive the lifting pad 4 to rise and fall relative to the turntable stripper plate 44 .

[0058] Specifically, the lifting pad 4 can be arranged on the upper surface of the riveting turntable 5 and located at the center of the riveting turntable 5. There can be three rivet posts 3, which are distributed along the axis of the riveting turntable 5, and the positions of the rivet posts 3 correspond to the positions of the bolt through holes in the workpiece 13. When the lifting driving member drives the lifting pad 4 to rise, it is convenient to remove the workpiece 13 from the riveting station.

[0059] Specifically, the lifting drive component is located below the turntable stripping plate 44, and the lifting drive component includes a telescopic cylinder 45, in which an air inlet pipe port 46 and a cylinder push rod 43 are provided, and the cylinder push rod 43 penetrates the turntable stripping plate 44 and the riveting turntable 5 and abuts against the lifting pad 4; when the gas enters the telescopic cylinder 45 through the air inlet port, the cylinder push rod 43 drives the lifting pad 4 to rise relative to the turntable stripping plate 44.

[0060] Furthermore, the air inlet pipe port 46 is connected to the gas generating device through the electromagnetic control valve 1 and the air receiving valve 2. According to the set PLC program, the electromagnetic control valve 1 controls the air receiving valve 2 to open, and the gas enters the telescopic cylinder 45 through the air receiving valve 2 and the air inlet gate, causing the cylinder top rod 43 to rise, thereby realizing the rise of the lifting pad 4.

[0061] In actual operation, the lifting pad 4 and the lifting base 47 are fixed together by fixing bolts 42. The lifting pad 4 is located above the riveting turntable 5. The lifting base 47 penetrates the riveting turntable 5 and abuts against the cylinder top rod 43. The cylinder top rod 43 acts on the lifting base 47, driving the lifting base 47 and the lifting pad 4 to rise synchronously, so as to facilitate the removal of the workpiece 13 after riveting.

[0062] The upper mold 14 is adapted to be installed with one of the riveting tools, and the riveting tool is provided with a rivet column 3 for placing bolts. The outer side of the turntable stripper plate 44 is provided with a limiter for positioning the workpiece 13. The turntable stripper plate 44 is provided with a guide sleeve 9, and the upper mold 14 is provided with a guide column 10 adapted with the guide sleeve 9.

[0063] During the mold closing process, the guide column 10 moves along the guide sleeve 9 to ensure that the upper mold 14 and the lower mold will not be offset during the mold closing process. The limiter may specifically include a column 12 and a positioning insert 11 located in the base stripper plate 67. The column 12 and the positioning insert 11 are distributed at different positions of the workpiece 13 to position the workpiece 13 to ensure that the workpiece 13 will not be offset during the riveting process. Since the riveting process is only performed on the riveting tool at one position, the position of the positioning insert 11 and the column 12 can be set according to the specific shape of the workpiece 13 and the position of the riveting tool that overlaps with the upper mold 14.

[0064] The turntable stripper plate 44 is provided with three first through holes, the base stripper plate 67 is provided with three second through holes that match the first through holes one by one, the positioning member 64 is located in the first through hole and the second through hole, and the bottom of the positioning member 64 is connected to the bottom of the second through hole through the first spring 66, and the top of the positioning member 64 is provided with a downward pressing driving member 6, which can drive the positioning member 64 to move in the first through hole and the second through hole, so that the base stripper plate 67 and the turntable stripper plate 44 are fixed or separated. The turntable stripper plate 44 is provided with a riveting turntable 5 that corresponds to the three first through holes one by one, and the center of the riveting turntable 5 is provided with a corresponding lifting pad 4.

[0065] Specifically, the push-down driving member 6 includes a push rod 61 and a handle 60. The push rod 61 is located in the first through hole. The bottom of the push rod 61 abuts against the positioning member 64. The top of the push rod 61 is connected to one end of the handle 60. The other end of the handle 60 extends to the outside of the tooling. The handle 60 drives the positioning member 64 to move in the first through hole and the second through hole through the push rod 61. A second spring 62 is provided on the outside of the push rod 61. The second spring 62 is nested on the outside of the push rod 61, and the two ends of the second spring 62 are fixedly connected to the outer wall of the push rod 61 and the inner wall of the first through hole, respectively.

[0066] In the present application, the positioning member 64 may be a positioning pin or other structure. To ensure that the positioning pin can be located in the first through hole and the second through hole at the same time, a fixing screw 65 may be provided at the bottom of the base stripper plate 67, and a first spring 66 may be provided on the fixing screw 65, and then the positioning pin may be installed on the first spring 66. The first spring 66 and the fixing screw 65 may increase the height of the positioning pin, ensuring that the positioning pin is located in the second through hole when the first spring 66 is compressed, and when the first spring 66 is not compressed, the positioning pin is located in the first through hole and the second through hole at the same time.

[0067] When the turntable stripper plate 44 rotates relative to the base stripper plate 67, since the angle between the three riveting fixtures is 120°, that is, when the turntable stripper plate 44 rotates 120°, the positioning member 64 will be aligned with the next first through hole. At this time, under the action of the first spring 66, the positioning member 64 will pass through the first through hole. At this time, under the auxiliary action of the second spring 62, the positioning member 64 can quickly drive the ejector rod 61 to reset, and the handle 60 is also reset synchronously. The second spring 62 and the first spring 66 cooperate with each other to ensure that the turntable stripper plate 44 is smoothly and quickly reset when it rotates to 120°, so as to achieve rapid fixation of the turntable stripper plate 44 and the base stripper plate 67.

[0068] A rotary drive member 8 is provided between two adjacent riveting tools, and the rotary drive member 8 includes a vertical drive member and a horizontal drive member. The vertical drive member is used to drive the handle 60 to rise and fall, and the horizontal drive member is used to push the handle 60 to rotate.

[0069] In the present application, three handles 60 need to be provided, that is, a handle 60 needs to be provided between every two adjacent riveting tools, and three corresponding vertical drive members also need to be provided. If the tooling position needs to be rotated, that is, the turntable stripping plate 44 and the base stripping plate 67 are disengaged, it is necessary to lift the three handles 60 at the same time to ensure that the three positioning members 64 are compressed into the second through hole. Therefore, the present application needs to provide three vertical drive members corresponding to the handles 60, while only one horizontal drive member can be provided. The horizontal drive member can be a horizontally extending cylinder, and the output end of the cylinder is connected to the push-pull clamp 7, and the push-pull clamp 7 can contact the end of the handle 60 within the stroke range of the cylinder. When the horizontal driving member is extended, a horizontal thrust is given to the handle 60 through the push-pull clamp 7. At this time, the turntable stripping plate 44 rotates relative to the base stripping plate 67 until it rotates to 120°. The positioning member 64 is reset to the first through hole and the second through hole under the action of the first spring 66. At the same time, the push rod 61 is reset under the action of the second spring 62, driving the handle 60 to reset.

[0070] It should be noted that, during the rotation of the turntable stripper plate 44 relative to the base stripper plate 67, the position of the rotary drive member 8 is fixed, and the vertical drive member also needs to act on the handle 60. This is because once the turntable stripper plate 44 rotates relative to the base stripper plate 67, the positioning member 64 has been compressed inside the second through hole, and the position of the handle 60 will no longer affect the positioning member 64. Only when the positioning member 64 is aligned with the first through hole again, the positioning member 64 will be reset.

[0071] The working principle of the above-mentioned riveting die in this application is as follows:

[0072] Place the bolt in the riveting tool corresponding to the upper die 14;

[0073] Placing the workpiece 13 in a riveting fixture so that the bolt is located in the through hole of the workpiece 13;

[0074] The upper mold 14 and the lower mold are closed to realize the riveting of the workpiece 13; at the same time, the bolts are placed in the adjacent riveting tool; before and during the riveting, the jacking drive component drives the jacking plate 4 to descend to the position where it abuts against the turntable stripper plate 44; after the riveting is completed, the jacking drive component drives the jacking plate 4 to rise to the position where it is disengaged from the turntable stripper plate 44, so as to facilitate the removal of the workpiece 13.

[0075] The downward pressing driving member 6 drives the base stripping plate 67 and the turntable stripping plate 44 to separate, so that the riveting tooling rotates and changes positions, thereby realizing the riveting of adjacent riveting toolings.

[0076] Taking the workpiece 13 as an air conditioner chassis part as an example, the following steps are specifically included:

[0077] Before starting production, start the punch press equipment, punch press air valve, air receiving valve 2 and electromagnetic control valve 1; at the same time, open the push-pull cylinder control port to prepare for work.

[0078] Parts preparation: Two employees cooperate with each other. Employee A is responsible for placing the bolts used in the rivet column 3 of the riveting turntable 5 below the upper mold 14. Employee B holds the air-conditioning chassis parts used and positions them on the riveting turntable 5 through the positioning insert 11, and makes the bolts placed in the rivet column 3 completely pass through the three through holes on the air-conditioning chassis parts. At this time, the state of the air-conditioning chassis parts is: one end is positioned by the positioning insert 11, the middle is supported by three bolts, and the far end is supported by the upright column 12.

[0079] When employee B performs the above action, employee A continues to repeat the above bolt placement action at the adjacent workstation where the bolt is placed, ensuring that there are always two workstations with bolts placed on them in the counterclockwise direction among the three workstations of the riveting turntable 5;

[0080] After employee A completes the above actions and leaves the photoelectric area, employee B presses the button on the punch press console to complete the punching, thereby realizing the bolt riveting of the air conditioner chassis parts. During the riveting process, the guide column in the upper mold 14 overlaps with the guide sleeve 9 in the lower mold to ensure the accuracy of the riveting of the parts. The finished product after riveting is as follows: Figure 6 As shown, the finished product before riveting is as follows Figure 5 As shown;

[0081] After the stamping is completed, according to the set PLC program, the electromagnetic control valve 1 responds, the air valve 2 opens, and the gas passes through the air valve 2 and the air inlet pipe 46 into the telescopic cylinder 45, so that the cylinder push rod 43 rises, and then the lifting plate 4 rises to push out the riveted product. The lifting plate 4 is on the upper surface of the riveting turntable 5, and plays the role of unloading the riveted product after riveting. The riveted product is placed on the upper surface of the riveting turntable 5. When the lifting plate 4 rises, the riveted product is pushed out separately, which effectively avoids the problem of employee B's difficulty in taking materials.

[0082] According to the set PLC program, after the material is taken, the system responds after a delay to make the three vertical driving parts work, wherein the vertical driving part moves upward, lifts the handle 60 away from one end of the top rod 61, so that the first spring 66 at the bottom of the three positioning parts 64 is compressed, so that the positioning part 64 is only located in the second through hole, ensuring that the base stripper plate 67 and the turntable stripper plate 44 are separated; then the horizontal driving part pushes the raised handle 60 toward the clamp by pushing and pulling, thereby realizing the equal-angle rotation of the turntable stripper plate 44, and when the turntable stripper plate 44 rotates 120°, the positioning part 64 rises and rebounds under the action of the first spring 66 and extends into the first through hole of the turntable stripper plate 44, realizing the re-fixation of the base stripper plate 67 and the turntable stripper plate 44. The three riveting stations rotate synchronously and are fixed again each time they rotate 120 degrees.

[0083] After completing the above actions, the rotary drive member 8 is reset, and the entire system process completes a work cycle; then, the PLC system cooperates with the employees to perform the same work cycle again.

[0084] The present application improves the riveting efficiency of the workpiece 13 by sequentially performing the preparatory work and riveting work on multiple riveting tools, while avoiding the complex structure of the prior art in which the upper mold 14 and the riveting tools are arranged in a one-to-one correspondence, simplifies the structure of the riveting mold, reduces the floor space, and improves the riveting efficiency of the workpiece 13.

[0085] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings. In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0086] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0087] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0088] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A multi-station circulation device, characterized in that: It comprises a base stripping plate (67), a turntable stripping plate (44), and M tooling distributed on the turntable stripping plate (44); the turntable stripping plate (44) is located above the base stripping plate (67); M is an integer greater than 1; The turntable stripping plate (44) is provided with M first through holes, and the base stripping plate (67) is provided with M second through holes that match the first through holes one by one; a positioning member (64) is provided between the first through hole and the second through hole, and the bottom of the positioning member (64) is connected to the bottom of the second through hole via a first elastic member; a downward pressing driving member (6) is provided on the top of the positioning member (64), and the downward pressing driving member (6) can drive the positioning member (64) to move in the first through hole and the second through hole, so that the base stripping plate (67) and the turntable stripping plate (44) are fixed or separated.

2. A multi-station circulation device according to claim 1, characterized in that: The push-down driving member (6) comprises a push rod (61) and a handle (60), wherein the push rod (61) is located in the first through hole, the bottom of the push rod (61) is in contact with the positioning member (64), the top of the push rod (61) is connected to one end of the handle (60), and the other end of the handle (60) extends to the outside of the tooling, and the handle (60) drives the positioning member (64) to move in the first through hole and the second through hole through the push rod (61).

3. A multi-station circulation device according to claim 2, characterized in that: A second spring (62) is arranged on the outside of the push rod (61), the second spring (62) is nested on the outside of the push rod (61), and two ends of the second spring (62) are respectively fixedly connected to the outer side wall of the push rod (61) and the inner side wall of the first through hole.

4. A multi-station circulation device according to claim 1, characterized in that: A rotating drive member (8) is provided between two adjacent toolings, wherein the rotating drive member (8) comprises a vertical drive member and a horizontal drive member, wherein the vertical drive member is used to drive the handle (60) to rise and fall, and the horizontal drive member is used to push the handle (60) to rotate.

5. A riveting die, characterized in that: It comprises an upper mold (14) and a lower mold, wherein the lower mold is provided with a multi-station circulation device as described in any one of claims 1 to 4; the multi-station circulation device comprises a base stripping plate (67), a turntable stripping plate (44), and M riveting tools symmetrically distributed in the turntable stripping plate (44).

6. A riveting die according to claim 5, characterized in that: A lifting pad (4) is provided on the upper surface of the turntable stripping plate (44), and the lifting pad (4) is used to place the workpiece (13). The lifting pad (4) is connected to a lifting drive component, and the lifting drive component can drive the lifting pad (4) to rise and fall relative to the turntable stripping plate (44).

7. A riveting die according to claim 6, characterized in that: The lifting drive component is located below the turntable stripping plate (44), and the lifting drive component includes a telescopic cylinder (45). The telescopic cylinder (45) is provided with an air inlet pipe port (46) and a cylinder push rod (43). The cylinder push rod (43) penetrates the turntable stripping plate (44) and abuts against the lifting pad (4). When gas enters the telescopic cylinder (45) through the air inlet port, the cylinder push rod (43) drives the lifting pad (4) to rise relative to the turntable stripping plate (44).

8. The riveting die according to claim 5, characterized in that: The upper mold (14) is mounted in a matching manner with one of the riveting fixtures, the riveting fixture is provided with a rivet column (3) for placing a bolt, a limiter for positioning a workpiece (13) is provided on the outer side of the turntable stripper plate (44), the turntable stripper plate (44) is provided with a guide sleeve (9), and a guide column (10) matching with the guide sleeve (9) is provided in the upper mold (14).

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