Metal rivet machining and forming equipment

Abstract

The invention belongs to the technical field of rivet machining, and particularly relates to metal rivet machining and forming equipment which comprises a forming machine body. A hydraulic cylinder is fixedly connected to the bottom surface of the top end of the forming machine body; a connector is arranged at the output end of the hydraulic cylinder; the bottom end of the connector is in threaded connection with a first forming cylinder. A second forming cylinder is connected to the first forming cylinder in a sliding mode. By arranging the first forming cylinder, the second forming cylinder and the third forming cylinder which are flexibly matched and adjusted, the forming device can adapt to forming of metal rivets of different sizes, the forming device capable of being flexibly adjusted replaces a traditional forming device for metal rivets of a single type, and the universality and practicability of the device are greatly improved; compared with the prior art, the equipment investment cost of an enterprise in the metal rivet production process is reduced, meanwhile, due to the flexible adjusting mode, the production process is more efficient, the time consumed for replacing equipment or adjusting parameters is shortened, and the overall production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of rivet processing, in particular to a metal rivet processing and forming equipment. BACKGROUND

[0002] The core processing and forming equipment of metal rivets is an automatic cold header, which is a high-efficiency and precise special pressure machine. It uses huge pressure and cold extrusion technology to make metal plastic deformation at room temperature, and finally forms a complete rivet at one time. The whole process is highly automated, realizes batch continuous production, and is a model in the field of metal plastic forming.

[0003] A patent application with publication number CN117531952A discloses a metal rivet automatic processing machine tool, which comprises a support frame, a material part, a transportation part and a forming part. The material part comprises a straight groove plate, a material wheel, a clamping mechanism and a material placing mechanism. This application can realize automatic production of rivets by controlling the movement of the power mechanism, saving human resources during the production of rivets, and using one power for cutting, transporting and forming of raw materials, thereby saving costs.

[0004] Currently, metal rivets have been widely used in many industrial fields, such as construction, aerospace and automobile manufacturing. Although the above-mentioned forming machine tool can realize automatic production of rivets through the power mechanism, it is not capable of dealing with diversified rivet models. Traditional metal rivet forming equipment is often designed for the automatic production of a single type of rivet. When different sizes of rivets need to be produced, the existing forming equipment often adapts to a single production process flow and is difficult to adjust flexibly to meet the diversity of production needs, which limits the production efficiency and flexibility. Especially when different types of rivets need to be produced, the replacement time and cost of traditional equipment are large.

[0005] Therefore, the present application provides a metal rivet processing and forming equipment. SUMMARY

[0006] In order to make up for the shortcomings of the prior art and solve at least one technical problem raised in the background art.

[0007] The technical scheme adopted by the application to solve its technical problems is: the metal rivet processing and forming equipment comprises a forming machine body; a hydraulic cylinder is fixedly connected to the top bottom surface of the forming machine body; a connecting head is arranged at the output end of the hydraulic cylinder; a first forming cylinder is threadedly connected to the bottom end of the connecting head; a second forming cylinder is slidably connected to the first forming cylinder; a third forming cylinder is slidably connected to the second forming cylinder; a fixed plate is fixedly connected to the outer wall of the third forming cylinder; a forming seat is fixedly connected to the bottom top surface of the forming machine body, and a forming groove is formed in the top end of the forming seat.

[0008] Preferably, the connecting head is rotatably connected with two first threaded rods near one end of the first forming cylinder, the two first threaded rods are oppositely arranged, and the first threaded rods are threadedly connected to the second forming cylinder; the second forming cylinder is rotatably connected with two second threaded rods near one end of the third forming cylinder, the two second threaded rods are oppositely arranged, the two first threaded rods and the two second threaded rods are staggered, and the second threaded rods are threadedly connected to the third forming cylinder.

[0009] Preferably, the second forming cylinder and the third forming cylinder are both inserted with a first clamping block, a plurality of first clamping blocks are respectively located at the first threaded rods and the second threaded rods, and the first threaded rods and the second threaded rods are respectively threadedly connected to the plurality of first clamping blocks; the inner wall of the first clamping block is slidably connected with a protruding rod through a first elastic element.

[0010] Preferably, the inner wall of the second forming cylinder is inserted with a first lining plate; the inner wall of the third forming cylinder is inserted with a second lining plate; the inner walls of the first lining plate and the second lining plate are both slidably connected with a plurality of extrusion blocks through a second elastic element.

[0011] Preferably, the output end of the hydraulic cylinder is fixedly connected with two clamping plates, and the two clamping plates are oppositely arranged; the output end of the hydraulic cylinder is fixedly connected with a fixed cylinder; the fixed cylinder is rotatably connected with a second clamping block, the cross-sectional shape of the second clamping block is F-shaped, one end of the second clamping block away from the fixed cylinder is fixedly connected with one end of the connecting head; a first bolt is threadedly connected to the two clamping plates, and the first bolt penetrates the connecting head.

[0012] Preferably, the inner wall of the forming seat is slidably connected with a first mold; the inner wall of the first mold is slidably connected with a second mold; the inner wall of the second mold is slidably connected with a third mold.

[0013] Preferably, one end of the first mold is fixedly connected with a first pushing cylinder; one end of the second mold is fixedly connected with a second pushing cylinder, and the second pushing cylinder slides in the first pushing cylinder; one end of the third mold is fixedly connected with a third pushing cylinder, and the third pushing cylinder slides in the second pushing cylinder; the forming seat is fixedly connected with a fixing frame, and the third pushing cylinder is slidably connected to the center of the fixing frame; a second bolt is threadedly connected to the fixing frame, and the second bolt penetrates the first pushing cylinder, the second pushing cylinder and the third pushing cylinder.

[0014] Preferably, the inner wall of the third mold is slidably connected with a sliding rod; one end of the sliding rod is fixedly connected with a jacking post, and the other end is fixedly connected with a third elastic element, and the third elastic element is located between the inner wall of the third mold and the sliding rod.

[0015] Preferably, the top end inner wall of the forming seat is fixedly connected with a plurality of fixing rods, and the plurality of fixing rods are arranged in a ring shape; a correction block is slidably connected to the fixing rod, and the end close to the correction blocks is arranged in an arc shape, and the top end of the correction block is arranged in an inclined surface; a fourth elastic member is sleeved on the fixing rod; and the bottom end of the fixing plate is arranged in a circular arc.

[0016] Preferably, the bottom end of the third push cylinder is threadedly connected with a supporting leg; and the outer wall of the first forming cylinder and the second forming cylinder is provided with a plurality of circular arcs.

[0017] The beneficial effects of the present application are as follows: 1. The metal rivet processing and forming equipment can adapt to different sizes of metal rivets, and can be replaced by a flexible and adjustable forming device, greatly improving the versatility and practicality of the equipment, reducing the equipment investment cost in the production process of metal rivets, and improving the overall production efficiency.

[0018] 2. The metal rivet processing and forming equipment can adapt to different sizes of metal rivets, and can be replaced by a flexible and adjustable forming device, greatly improving the versatility and practicality of the equipment, reducing the equipment investment cost in the production process of metal rivets, and improving the overall production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below with reference to the accompanying drawings.

[0020] Figure 1 is a perspective view of the present application; Figure 2 is a structure schematic view of a first threaded rod in the present application; Figure 3 is a structure schematic view of a second clamping block in the present application; Figure 4 is a structure schematic view of a second lining plate in the present application; Figure 5 is a structure diagram of a first lining plate in the application; Figure 6 is a structure diagram of a first clamping block in the application; Figure 7 is a structure diagram of a correction block in the application; Figure 8 is a partial structure sectional view of a third mold in the application.

[0021] In the figure: 1, a forming machine body; 11, a hydraulic cylinder; 12, a connecting head; 13, a first forming cylinder; 14, a second forming cylinder; 15, a third forming cylinder; 16, a fixed plate; 17, a forming seat; 2, a first threaded rod; 21, a second threaded rod; 3, a first clamping block; 31, a protruding rod; 4, a first lining plate; 41, a second lining plate; 42, an extrusion block; 5, a clamping plate; 51, a fixed cylinder; 52, a second clamping block; 53, a first bolt; 6, a first mold; 61, a second mold; 62, a third mold; 7, a first push cylinder; 71, a second push cylinder; 72, a third push cylinder; 73, a fixed frame; 74, a second bolt; 8, a sliding rod; 81, a jacking column; 82, a third elastic member; 9, a fixed rod; 91, a correction block; 92, a fourth elastic member; 93, a supporting leg. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application is further described below in combination with specific embodiments.

[0023] As Figures 1 to 5As shown, the metal rivet processing and forming equipment provided by the embodiment of the present application comprises a forming body 1; a hydraulic cylinder 11 is fixedly connected to the top bottom surface of the forming body 1; a connecting head 12 is arranged at the output end of the hydraulic cylinder 11; a first forming cylinder 13 is threadedly connected to the bottom end of the connecting head 12; a second forming cylinder 14 is slidably connected to the first forming cylinder 13; a third forming cylinder 15 is slidably connected to the second forming cylinder 14; a fixing plate 16 is fixedly connected to the outer wall of the third forming cylinder 15; a forming seat 17 is fixedly connected to the bottom top surface of the forming body 1, and a forming groove is arranged at the top end of the forming seat 17; when different sizes of metal rivets are processed and formed, the forming body 1 is used as the main support of the forming equipment, the forming seat 17 is fixed below the forming body 1 as the forming appliance, the truncated metal rod is first placed in the center of the forming groove by the mechanical hand, at this time, the connecting head 12 can be connected to the output end of the hydraulic cylinder 11, according to the size of the metal rivet currently processed, the positions of the second forming cylinder 14 and the third forming cylinder 15 on the first forming cylinder 13 are adaptively adjusted, after the adjustment is completed, the second forming cylinder 14 and the third forming cylinder 15 are fixed and limited in position, then the output end of the hydraulic cylinder 11 drives the connecting head 12 to stretch downward, then the second forming cylinder 14, the third forming cylinder 15 and the fixing plate 16 on the first forming cylinder 13 drive the metal rod on the forming seat 17 to be formed by one-time cold heading, then the mechanical hand can grab the finished product and replace new material, the fixing plate 16 is used for extruding and plugging the opening of the forming groove, the forming effect of the metal rivet is improved, and the effect of processing and forming different sizes of metal rivets is realized; When the second forming cylinder 14 and the third forming cylinder 15 on the first forming cylinder 13 are adjusted to be suitable for forming metal rivets of different sizes, the specific adjustment mode is as follows: When a thicker metal rod is cold headed and formed, according to the length of the thick metal rod, the third forming cylinder 15 is freely adjusted to slide on the second forming cylinder 14, the positions of the second forming cylinder 14 and the third forming cylinder 15 are fixed, and the third forming cylinder 15 is at the foremost end, the inner diameter of the third forming cylinder 15 is adapted to the thick metal rod, the hydraulic cylinder 11 drives the third forming cylinder 15 to approach the thick metal rod, part of the thick metal rod is inserted into the inner wall of the third forming cylinder 15, and then the thick metal rod is cold headed and formed; When a medium-diameter metal rod is cold headed and formed, the third forming cylinder 15 is first slid to the second forming cylinder 14, so that one end of the third forming cylinder 15 is flush with one end of the second forming cylinder 14, according to the length of the medium metal rod, the second forming cylinder 14 and the third forming cylinder 15 are freely adjusted to slide on the first forming cylinder 13, the positions of the second forming cylinder 14 and the third forming cylinder 15 are fixed, at this time, the second forming cylinder 14 and the third forming cylinder 15 are at the foremost end, the inner diameter of the second forming cylinder 14 is adapted to the medium metal rod, the hydraulic cylinder 11 drives the second forming cylinder 14 to approach the medium metal rod, part of the medium metal rod is inserted into the inner wall of the second forming cylinder 14, and then the medium metal rod is cold headed and formed; In the cold heading of the thinner metal rod, first slide the third forming cylinder 15 to the second forming cylinder 14, so that one end of the third forming cylinder 15 is flush with one end of the second forming cylinder 14, then slide the third forming cylinder 15 and the second forming cylinder 14 to the first forming cylinder 13, so that one end of the third forming cylinder 15 and the second forming cylinder 14 is flush with one end of the first forming cylinder 13, according to the length of the thin metal rod, freely adjust the sliding of the second forming cylinder 14 and the third forming cylinder 15 on the first forming cylinder 13, fix the position of the second forming cylinder 14 and the third forming cylinder 15, at this time the second forming cylinder 14 and the third forming cylinder 15 are at the front end, adapt the inner diameter of the second forming cylinder 14 to the thin metal rod, the hydraulic cylinder 11 drives the second forming cylinder 14 to approach the thin metal rod, part of the thin metal rod is inserted into the inner wall of the second forming cylinder 14, then the thin metal rod is cold headed; The flexible adjustment of the position of the second forming cylinder 14 and the third forming cylinder 15 can adapt to the forming of metal rivets of different sizes, so that the flexible adjustment forming equipment replaces the traditional forming equipment for single type metal rivets, greatly improves the universality and practicality of the equipment, reduces the equipment investment cost of enterprises in the production process of metal rivets, at the same time, this flexible adjustment method also makes the production process more efficient, reduces the time consumed by equipment replacement or parameter adjustment, improves the overall production efficiency, moreover, the operation of the equipment is relatively simple, the workers can quickly master the adjustment and use method after simple training, further ensures the smooth production, in addition, the structure design of the equipment is reasonable, the connection between the parts is stable, which can maintain stable performance in the long-term use process, reduces the probability of equipment failure, provides strong guarantee for the continuity of enterprise production.

[0024] The connecting head 12 is rotatably connected with two first threaded rods 2 near one end of a first forming cylinder 13, the two first threaded rods 2 are oppositely arranged, and the first threaded rods 2 are threadedly connected to a second forming cylinder 14; the second forming cylinder 14 is rotatably connected with two second threaded rods 21 near one end of a third forming cylinder 15, the two second threaded rods 21 are oppositely arranged, the two first threaded rods 2 and the two second threaded rods 21 are staggered, and the second threaded rods 21 are threadedly connected to the third forming cylinder 15; when the positions of the second forming cylinder 14 and the third forming cylinder 15 are adjusted, the two second threaded rods 21 are rotatably connected to the second forming cylinder 14, and the two second threaded rods 21 are threadedly connected to the third forming cylinder 15, the left and right sliding of the third forming cylinder 15 is realized by the threaded rotation of the two second threaded rods 21 and the third forming cylinder 15, so that the position of the third forming cylinder 15 is adjusted to be suitable for the forming of metal rivets of different sizes; the two first threaded rods 2 are rotatably connected to the connecting head 12, and the two first threaded rods 2 are threadedly connected to the second forming cylinder 14, the left and right sliding of the second forming cylinder 14 is realized by the threaded rotation of the two first threaded rods 2 and the second forming cylinder 14, so that the position of the second forming cylinder 14 is adjusted to be suitable for the forming of metal rivets of different sizes.

[0025] As shown in Figures 1 to 6 The second forming cylinder 14 and the third forming cylinder 15 are respectively inserted with a first clamping block 3, a plurality of first clamping blocks 3 are respectively located at the positions of the first threaded rods 2 and the second threaded rods 21, and the first threaded rods 2 and the second threaded rods 21 are respectively threadedly connected to the plurality of first clamping blocks 3; the inner wall of the first clamping block 3 is slidably connected with a convex rod 31 through a first elastic member; when the second forming cylinder 14 and the third forming cylinder 15 are disassembled and maintained, the convex rod 31 is first pressed to slide into the inner wall of the first clamping block 3, so that the limiting of the first clamping block 3 is released, and the second forming cylinder 14 and the third forming cylinder 15 are respectively disassembled and pulled out, which is convenient for the maintenance and use of the second forming cylinder 14 and the third forming cylinder 15; When the second forming cylinder 14 is needed to be used to form metal rivets, the clamping of the convex rod 31 to the third forming cylinder 15 can also be released, then the third forming cylinder 15 is directly pushed to fit the second forming cylinder 14, the ends of the third forming cylinder 15 and the second forming cylinder 14 are leveled, then the two first clamping blocks 3 are quickly rotated on the two second threaded rods 21, and finally the two first clamping blocks 3 are clamped into the third forming cylinder 15 for limiting, this operation mode can be more efficient than slowly rotating the two second threaded rods 21 respectively, the position adjustment mode of the second forming cylinder 14 is the same as that of the third forming cylinder 15, and the speed of the position adjustment of the second forming cylinder 14 and the third forming cylinder 15 is improved.

[0026] The inner wall of the second forming cylinder 14 is inserted with a first inner lining plate 4; the inner wall of the third forming cylinder 15 is inserted with a second inner lining plate 41; the inner wall of the first inner lining plate 4 and the second inner lining plate 41 is slidably connected with a plurality of extrusion blocks 42 through the second elastic members; when the second forming cylinder 14 and the third forming cylinder 15 are used to form metal rivets of different sizes, the second inner lining plate 41 is inserted into the inner wall of the third forming cylinder 15 through the extrusion blocks 42 supported by the second elastic members, and the second inner lining plate 41 is attached to one end of the second forming cylinder 14, at this time, the inner hole of the second forming cylinder 14 is blocked, reducing the possibility of the reverse forming of part of the metal rod in the inner hole of the second forming cylinder 14 when the third forming cylinder 15 is used to form a metal rivet, the first inner lining plate 4 is also inserted into the inner wall of the second forming cylinder 14 through the extrusion blocks 42 supported by the second elastic members, and the first inner lining plate 4 is blocked in the inner hole of the first forming cylinder 13, reducing the probability of reverse forming of metal rods of different sizes; at the same time, due to the support of one end of the second forming cylinder 14 to the second inner lining plate 41, when the third forming cylinder 15 is adjusted to be level with one end of the second forming cylinder 14, at this time, the second inner lining plate 41 can be detached from the inner wall of the third forming cylinder 15, and the first inner lining plate 4 also falls off when one end of the second forming cylinder 14 is level with one end of the first forming cylinder 13, realizing the automatic detachment of the first inner lining plate 4 and the second inner lining plate 41.

[0027] The output end of the hydraulic cylinder 11 is fixedly connected with two clamping plates 5, and the two clamping plates 5 are oppositely arranged; the output end of the hydraulic cylinder 11 is fixedly connected with a fixed cylinder 51; the fixed cylinder 51 is rotatably connected with a second clamping block 52, and the cross-sectional shape of the second clamping block 52 is F-shaped, and one end of the second clamping block 52 away from the fixed cylinder 51 is fixedly connected with one end of the connecting head 12; a first bolt 53 is threadedly connected on the two clamping plates 5, and the first bolt 53 penetrates the connecting head 12; when forming metal rivets of different sizes, according to the different lengths of the metal rod of the metal rivet raw material, the connecting head 12 is reversely rotated by hand, so that the F-shaped second clamping block 52 is detached from the limiting groove of the fixed cylinder 51, the distance between the output end of the forming equipment and the forming seat 17 is adjusted, after the adjustment is completed, the connecting head 12 is reversely rotated by hand, so that the second clamping block 52 is inserted into other positions of the limiting groove of the fixed cylinder 51, and the first bolt 53 is threadedly connected on the two clamping plates 5 through the connecting head 12, realizing the adaptive adjustment of the position of the output end of the forming equipment, this adjustment mode enables the forming equipment to be flexibly adjusted according to metal rods of different lengths, ensuring that the contact position of the output end of the forming equipment and the metal rod is accurate during the cold heading forming process, thereby improving the forming quality and precision of the metal rivet.

[0028] As Figure 1 , Figure 7 and Figure 8As shown, the inner wall of the forming seat 17 is slidingly connected with a first mold 6; the inner wall of the first mold 6 is slidingly connected with a second mold 61; the inner wall of the second mold 61 is slidingly connected with a third mold 62; when the mold is replaced and adapted to form metal rivets of different sizes, the first mold 6, the second mold 61 and the third mold 62 are inserted into the forming groove of the forming seat 17 together; when the third forming cylinder 15 is used for forming, the positions of the first mold 6, the second mold 61 and the third mold 62 in the forming groove are adaptively adjusted and fixed, and the ends of the first mold 6, the second mold 61 and the third mold 62 need to be kept flat; when the second forming cylinder 14 is used for forming, the positions of the second mold 61 and the third mold 62 in the forming groove are adaptively adjusted and fixed, and the ends of the second mold 61 and the third mold 62 need to be kept flat; when the first forming cylinder 13 is used for forming, the position of the third mold 62 in the forming groove is adaptively adjusted and fixed; the effect of replacing and adapting the mold to form metal rivets of different sizes is achieved.

[0029] One end of the first mold 6 is fixedly connected with a first push cylinder 7; one end of the second mold 61 is fixedly connected with a second push cylinder 71, and the second push cylinder 71 slides in the first push cylinder 7; one end of the third mold 62 is fixedly connected with a third push cylinder 72, and the third push cylinder 72 slides in the second push cylinder 71; a fixing frame 73 is fixedly connected to the forming seat 17, and the third push cylinder 72 is slidingly connected to the center of the fixing frame 73; a second bolt 74 is threadedly connected to the fixing frame 73, and the second bolt 74 penetrates the first push cylinder 7, the second push cylinder 71 and the third push cylinder 72 at the same time; when the positions of the first mold 6, the second mold 61 and the third mold 62 are adjusted, the positions of the first push cylinder 7, the second push cylinder 71 and the third push cylinder 72 are adjusted according to the different sizes of the formed metal rivets, and then the second bolt 74 penetrates the first push cylinder 7, the second push cylinder 71 and the third push cylinder 72 and is threadedly connected to the fixing frame 73, so that the positions of the first mold 6, the second mold 61 and the third mold 62 are adjusted, and the device is suitable for forming metal rivets of different sizes.

[0030] The inner wall of the third mold 62 is slidingly connected with a sliding rod 8; one end of the sliding rod 8 is fixedly connected with a top column 81, and the other end is fixedly connected with a third elastic member 82, which is located between the inner wall of the third mold 62 and the sliding rod 8; when the metal rivet is formed, the metal rod is placed in the center of the top column 81, and then the output end of the forming equipment cold headers the metal rod, the metal rod synchronously extrudes the top column 81 and the sliding rod 8 to slide, the third elastic member 82 is extruded and contracted under stress, and then the third elastic member 82 is reset by elastic force to extrude the sliding rod 8 and the top column 81 to reset, so that the top column 81 can eject the metal rivet to play the role of ejecting the finished product.

[0031] The inner wall of the top end of the forming seat 17 is fixedly connected with a plurality of fixing rods 9, and the plurality of fixing rods 9 are arranged in a ring shape; the fixing rod 9 is slidably connected with a correction block 91, and the end close to the plurality of correction blocks 91 is arranged in an arc shape, and the top end of the correction block 91 is arranged in an inclined surface; the fixing rod 9 is sleeved with a fourth elastic member 92; the bottom end of the fixing plate 16 is arranged in a circular arc; when the metal rod is placed on the top column 81, the metal rod is directly inserted into the center of the four correction blocks 91, the metal rod can extrude the four correction blocks 91, the four correction blocks 91 slide outward, the correction block 91 slides on the fixing rod 9, and the fourth elastic member 92 is extruded and shrunk under stress, the arc surface of the four correction blocks 91 clamps the metal rod, and plays a role of clamping and limiting the metal rod; at the same time, the four correction blocks 91 can also correct the metal rod to the center of the top column 81, thereby improving the precision of cold heading; and the fixing plate 16 on the third forming cylinder 15 is close to the four correction blocks 91, the arc surface at the bottom end of the fixing plate 16 is extruded against the inclined surface of the four correction blocks 91, so that the four correction blocks 91 slide outward again, until the four correction blocks 91 reset after the cold heading of the metal rivet is completed.

[0032] As shown in Figures 1 to 5 、 Figure 7 、 Figure 8 The bottom end of the third push cylinder 72 is threadedly connected with a supporting leg 93; the outer wall of the first forming cylinder 13 and the second forming cylinder 14 is provided with a plurality of arcs; when the position of the third mold 62 is adjusted to adapt to metal rivets of different sizes, after the position of the third push cylinder 72 connected with the third mold 62 is adjusted, the supporting leg 93 is adaptively threadedly rotated by hand, so that the supporting leg 93 can be supported on the forming machine body 1, through the support of the supporting leg 93, the fixation of the third mold 62 can be strengthened, thereby improving the stability during the forming of the metal rivet, and the plurality of arcs provided on the first forming cylinder 13 and the second forming cylinder 14 are used for auxiliary measurement when the positions of the second forming cylinder 14 and the third forming cylinder 15 are adjusted.

[0033] Working process: when different sizes of metal rivets are processed and formed, the forming machine body 1 is used as the main support of the forming equipment, the forming seat 17 is fixed below the forming machine body 1 as the forming appliance, the truncated metal rod is placed in the center of the forming groove by the mechanical hand, the connecting head 12 can be connected to the output end of the hydraulic cylinder 11 at this time, according to the different sizes of the metal rivets currently processed, the positions of the No. 3 forming cylinder 15 and the No. 2 forming cylinder 14 on the No. 1 forming cylinder 13 are adjusted adaptively, after the adjustment is completed, the No. 2 forming cylinder 14 and the No. 3 forming cylinder 15 are fixed and limited, then the output end of the hydraulic cylinder 11 drives the connecting head 12 to stretch down, then drives the No. 2 forming cylinder 14, the No. 3 forming cylinder 15 and the fixed plate 16 on the No. 1 forming cylinder 13 to cold upset the metal rod on the forming seat 17 at one time, then the mechanical hand can replace the new material after grabbing the finished product, the fixed plate 16 is used for extruding and plugging the opening of the forming groove, improving the forming effect of the metal rivet, and realizing the processing and forming of metal rivets of different sizes; When the No. 2 forming cylinder 14 and the No. 3 forming cylinder 15 on the No. 1 forming cylinder 13 are adjusted to be suitable for forming metal rivets of different sizes, the specific adjustment mode is as follows: When cold upsetting the thicker metal rod, according to the length of the thick metal rod, the No. 3 forming cylinder 15 is freely adjusted to slide on the No. 2 forming cylinder 14, the positions of the No. 2 forming cylinder 14 and the No. 3 forming cylinder 15 are fixed, and the No. 3 forming cylinder 15 is at the most front end, the inner diameter of the No. 3 forming cylinder 15 is adapted to the thick metal rod, the hydraulic cylinder 11 drives the No. 3 forming cylinder 15 to approach the thick metal rod, part of the thick metal rod is inserted into the inner wall of the No. 3 forming cylinder 15, and then the thick metal rod is cold upset; When cold upsetting the medium diameter metal rod, the No. 3 forming cylinder 15 is first slid to the No. 2 forming cylinder 14, so that one end of the No. 3 forming cylinder 15 is flush with one end of the No. 2 forming cylinder 14, according to the length of the medium metal rod, the No. 2 forming cylinder 14 and the No. 3 forming cylinder 15 are freely adjusted to slide on the No. 1 forming cylinder 13, the positions of the No. 2 forming cylinder 14 and the No. 3 forming cylinder 15 are fixed, at this time, the No. 2 forming cylinder 14 and the No. 3 forming cylinder 15 are at the most front end, the inner diameter of the No. 2 forming cylinder 14 is adapted to the medium metal rod, the hydraulic cylinder 11 drives the No. 2 forming cylinder 14 to approach the medium metal rod, part of the medium metal rod is inserted into the inner wall of the No. 2 forming cylinder 14, and then the medium metal rod is cold upset; In the cold heading of the thinner metal rod, the third forming cylinder 15 is first slid to the second forming cylinder 14, so that one end of the third forming cylinder 15 is flush with one end of the second forming cylinder 14, and then the third forming cylinder 15 and the second forming cylinder 14 are slid to the first forming cylinder 13, so that one end of the third forming cylinder 15 and the second forming cylinder 14 is flush with one end of the first forming cylinder 13. According to the length of the thin metal rod, the position of the second forming cylinder 14 and the third forming cylinder 15 is adjusted by sliding on the first forming cylinder 13. The position of the second forming cylinder 14 and the third forming cylinder 15 is fixed, and at this time the second forming cylinder 14 and the third forming cylinder 15 are at the front end. The inner diameter of the second forming cylinder 14 is adapted to the thin metal rod, the hydraulic cylinder 11 drives the second forming cylinder 14 to approach the thin metal rod, and part of the thin metal rod is inserted into the inner wall of the second forming cylinder 14, and then the thin metal rod is cold headed; when the position of the second forming cylinder 14 and the third forming cylinder 15 is adjusted, the two second threaded rods 21 are rotatably connected to the second forming cylinder 14, and the two second threaded rods 21 are threadedly connected to the third forming cylinder 15. By rotating the two second threaded rods 21 and the third forming cylinder 15, the left and right sliding of the third forming cylinder 15 is realized, so that the position of the third forming cylinder 15 is adjusted to be suitable for the forming of metal rivets of different sizes; the two first threaded rods 2 are rotatably connected to the connecting head 12, and the two first threaded rods 2 are threadedly connected to the second forming cylinder 14. By rotating the two first threaded rods 2 and the second forming cylinder 14, the left and right sliding of the second forming cylinder 14 is realized, so that the position of the second forming cylinder 14 is adjusted to be suitable for the forming of metal rivets of different sizes; when the second forming cylinder 14 and the third forming cylinder 15 are disassembled and maintained, the convex rods 31 are first pressed to slide into the inner wall of the first clamping block 3, so that the limiting of the first clamping block 3 is released, and the second forming cylinder 14 and the third forming cylinder 15 are disassembled and pulled out, which is convenient for the maintenance and use of the second forming cylinder 14 and the third forming cylinder 15; when the second forming cylinder 14 is needed to be used for the forming of metal rivets, the clamping of the convex rod 31 on the third forming cylinder 15 can also be released, and then the third forming cylinder 15 is directly pushed to fit the second forming cylinder 14, and one end of the third forming cylinder 15 and the second forming cylinder 14 is flush. Then the two first clamping blocks 3 are quickly rotated on the two second threaded rods 21, and finally the two first clamping blocks 3 are clamped into the third forming cylinder 15 for limiting. This operation method can be more efficient than slowly rotating the two second threaded rods 21 respectively. The position adjustment method of the second forming cylinder 14 is the same as that of the third forming cylinder 15, which improves the speed of position adjustment of the second forming cylinder 14 and the third forming cylinder 15; When the metal rivet of different sizes is formed by using the No. 2 forming cylinder 14 and the No. 3 forming cylinder 15, the extrusion block 42 supported by the plurality of No. 2 elastic members of the No. 2 lining plate 41 is inserted into the inner wall of the No. 3 forming cylinder 15, and the No. 2 lining plate 41 is attached to one end of the No. 2 forming cylinder 14, at this time, the inner hole of the No. 2 forming cylinder 14 is blocked, reducing the occurrence of the situation that part of the metal rod is reversely formed in the inner hole of the No. 2 forming cylinder 14 when the No. 3 forming cylinder 15 is formed, the No. 1 lining plate 4 is also inserted into the inner wall of the No. 2 forming cylinder 14 by the plurality of extrusion blocks 42 supported by the No. 2 elastic members, and the No. 1 lining plate 4 blocks the inner hole of the No. 1 forming cylinder 13, reducing the probability of reverse forming of metal rods of different sizes; at the same time, due to the support of the No. 2 lining plate 41 at one end of the No. 2 forming cylinder 14, when the No. 3 forming cylinder 15 is adjusted to be flat with one end of the No. 2 forming cylinder 14, at this time, the No. 2 lining plate 41 can be separated from the inner wall of the No. 3 forming cylinder 15, and the No. 1 lining plate 4 also falls off when the one end of the No. 2 forming cylinder 14 is flat with the one end of the No. 1 forming cylinder 13, realizing the automatic separation of the No. 1 lining plate 4 and the No. 2 lining plate 41; When forming metal rivets of different sizes, according to the length of the metal rod of the metal rivet raw material, the handheld connector 12 is reversely rotated, so that the No. 2 clamping block 52 of the F-shaped is separated from the limiting groove of the fixed cylinder 51, the distance between the output end of the forming device and the forming seat 17 is adjusted, after the adjustment is completed, the handheld connector 12 is reversely rotated, so that the No. 2 clamping block 52 is inserted into the other position of the limiting groove of the fixed cylinder 51, the No. 1 bolt 53 is used to penetrate and threadedly connect the two clamping plates 5, realizing the adaptive adjustment of the position of the output end of the forming device, this adjustment mode enables the forming device to be flexibly adjusted according to metal rods of different lengths, ensuring that the contact position of the output end of the forming device and the metal rod is accurate during cold heading forming, thereby improving the forming quality and precision of the metal rivet; When the different size metal rivet replacement mold is adaptively formed, the first mold 6, the second mold 61 and the third mold 62 are inserted into the forming groove of the forming seat 17 together, the positions of the first mold 6, the second mold 61 and the third mold 62 in the forming groove are adaptively adjusted and fixed when the third forming cylinder 15 is used for forming, and the ends of the first mold 6, the second mold 61 and the third mold 62 need to be kept flat; the positions of the second mold 61 and the third mold 62 in the forming groove are adaptively adjusted and fixed when the second forming cylinder 14 is used for forming, and the ends of the second mold 61 and the third mold 62 need to be kept flat; the position of the third mold 62 in the forming groove is adaptively adjusted and fixed when the first forming cylinder 13 is used for forming; the effect of adaptively forming the different size metal rivet replacement mold is realized; when the positions of the first mold 6, the second mold 61 and the third mold 62 are adjusted, the positions of the first push cylinder 7, the second push cylinder 71 and the third push cylinder 72 are adjusted respectively according to the different sizes of the formed metal rivets, then the second bolt 74 penetrates the first push cylinder 7, the second push cylinder 71 and the third push cylinder 72 and is threadedly connected to the fixed frame 73, the positions of the first mold 6, the second mold 61 and the third mold 62 are adjusted, and the metal rivet forming device is suitable for different sizes of metal rivets; When the metal rivet is formed, the metal rod is placed in the center of the top column 81, then the output end of the forming device cold headers the metal rod, the metal rod synchronously extrudes the top column 81 and the sliding rod 8 to slide, the third elastic piece 82 is extruded and shrunk under stress, and when the output end of the forming device is retracted and reset, the third elastic piece 82 is reset by elastic force to extrude the sliding rod 8 and the top column 81 to reset, the top column 81 can eject the metal rivet, and the effect of ejecting the finished product is achieved; when the metal rod is placed on the top column 81, the metal rod is directly inserted into the center of the four correction blocks 91, the metal rod can extrude the four correction blocks 91, the four correction blocks 91 slide to the four sides, the correction blocks 91 slide on the fixed rod 9 and extrude the fourth elastic piece 92 to shrink under stress, the arc surfaces of the four correction blocks 91 clamp the metal rod, and the effect of clamping and limiting the metal rod is achieved; meanwhile, the four correction blocks 91 can also correct the metal rod to the center of the top column 81, thereby improving the cold heading precision; and the fixed plate 16 on the third forming cylinder 15 is close to the four correction blocks 91, the arc surface at the bottom end of the fixed plate 16 extrudes the inclined surface of the four correction blocks 91, so that the four correction blocks 91 slide to the four sides again until the four correction blocks 91 are reset after the cold heading of the metal rivet is completed; When the position adjustment of the third mold 62 adapts to different sizes of metal rivets, after the position adjustment of the third push cylinder 72 connected with the third mold 62, the handheld supporting leg 93 is adaptively screwed to support on the forming machine body 1, through the support of the supporting leg 93, the fixation of the third mold 62 can be strengthened, and then the stability during the forming of the metal rivet is improved, and the plurality of circular arcs provided on the first forming cylinder 13 and the second forming cylinder 14 are used for assisting the measurement during the position adjustment of the second forming cylinder 14 and the third forming cylinder 15.

[0034] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A metal rivet processing and forming device, characterized by: It includes a forming machine body; a hydraulic cylinder is fixedly connected to the bottom surface of the top end of the forming machine body; a connecting head is provided at the output end of the hydraulic cylinder; the bottom end of the connecting head is threadedly connected to a No. 1 forming cylinder; a No. 2 forming cylinder is slidably connected to the No. 1 forming cylinder; a No. 3 forming cylinder is slidably connected to the No. 2 forming cylinder; a fixing plate is fixedly connected to the outer wall of the No. 3 forming cylinder; a forming seat is fixedly connected to the top surface of the bottom end of the forming machine body, and a forming groove is provided at the top of the forming seat.

2. The metal rivet processing and forming equipment according to claim 1, characterized in that: The end of the connecting head close to the No. 1 forming tube is rotatably connected to two No. 1 threaded rods, the two No. 1 threaded rods are arranged opposite to each other, and the No. 1 threaded rod is threadedly connected to the No. 2 forming tube; the end of the No. 2 forming tube close to the No. 3 forming tube is rotatably connected to two No. 2 threaded rods, the two No. 2 threaded rods are arranged opposite to each other, the two No. 1 threaded rods and the two No. 2 threaded rods are staggered, and the No. 2 threaded rods are threadedly connected to the No. 3 forming tube.

3. The metal rivet processing and forming equipment according to claim 2, characterized in that: The No. 2 forming tube and the No. 3 forming tube are both plugged with a No. 1 clamping block, and multiple No. 1 clamping blocks are respectively located at multiple No. 1 threaded rods and No. 2 threaded rods, and the No. 1 threaded rods and No. 2 threaded rods are respectively threadedly connected to the multiple No. 1 clamping blocks; the inner wall of the No. 1 clamping block is slidably connected to a protruding rod through a No. 1 elastic member.

4. The metal rivet processing and forming equipment according to claim 1, characterized in that: The inner wall of the No. 2 forming cylinder is plugged with the No. 1 inner lining plate; the inner wall of the No. 3 forming cylinder is plugged with the No. 2 inner lining plate; the inner walls of the No. 1 inner lining plate and the No. 2 inner lining plate are both slidably connected with multiple extrusion blocks through the No. 2 elastic member.

5. The metal rivet processing and forming equipment according to claim 1, characterized in that: The output end of the hydraulic cylinder is fixedly connected to two clamping plates, and the two clamping plates are arranged opposite to each other; the output end of the hydraulic cylinder is fixedly connected to a fixed cylinder; a No. 2 clamping block is rotatably connected to the fixed cylinder, and the cross-sectional shape of the No. 2 clamping block is F-shaped, and the end of the No. 2 clamping block away from the fixed cylinder is fixedly connected to one end of the connecting head; the two clamping plates are commonly threadedly connected to a No. 1 bolt, and the No. 1 bolt passes through the connecting head.

6. The metal rivet processing and forming equipment according to claim 1, characterized in that: The inner wall of the forming seat is slidably connected to the No. 1 mold; the inner wall of the No. 1 mold is slidably connected to the No. 2 mold; the inner wall of the No. 2 mold is slidably connected to the No. 3 mold.

7. The metal rivet processing and forming equipment according to claim 6, characterized in that: One end of the No. 1 mold is fixedly connected to the No. 1 push cylinder; one end of the No. 2 mold is fixedly connected to the No. 2 push cylinder, and the No. 2 push cylinder is located in the No. 1 push cylinder and slides; one end of the No. 3 mold is fixedly connected to the No. 3 push cylinder, and the No. 3 push cylinder is located in the No. 2 push cylinder and slides; a fixing frame is fixedly connected to the forming seat, and the No. 3 push cylinder is slidably connected to the center of the fixing frame; a No. 2 bolt is threadedly connected to the fixing frame, and the No. 2 bolt passes through the No. 1 push cylinder, the No. 2 push cylinder and the No. 3 push cylinder at the same time.

8. The metal rivet processing and forming equipment according to claim 6, characterized in that: The inner wall of the No. 3 mold is slidably connected to a sliding rod; one end of the sliding rod is fixedly connected to a top column, and the other end is fixedly connected to a No. 3 elastic member, and the No. 3 elastic member is located between the inner wall of the No. 3 mold and the sliding rod.

9. The metal rivet processing and forming equipment according to claim 8, characterized in that: A plurality of fixing rods are fixedly connected to the inner wall of the top end of the forming seat, and the plurality of fixing rods are arranged in a ring shape; a correction block is slidably connected to the fixing rod, and the end of the plurality of correction blocks close to each other is arranged in an arc shape, and the top of the correction block is arranged in an inclined surface; a No. 4 elastic part is sleeved on the fixing rod; the bottom end of the fixing plate is arranged in an arc shape.

10. The metal rivet processing and forming equipment according to claim 7, characterized in that: The bottom end of the No. 3 push cylinder is threadedly connected to a supporting foot; the outer walls of the No. 1 forming cylinder and the No. 2 forming cylinder are both provided with multiple arcs.

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