Automatic forming device for welding bolt mortise points

Abstract

The present application discloses an automatic forming device for welding bolt mortise points, comprising a main die portion, a punching die portion, a material clamping and transferring portion and a feeding portion, wherein the main die portion comprises four main die seats, each main die seat having one end facing the punching die portion capable of mounting a workpiece, and the other end being provided with a driving mechanism for ejecting the workpiece after punching from the main die seat; the punching die portion comprises a punching die seat corresponding to the four main die seats one by one, the four main die seats cooperate with the four punching die seats to achieve forming of the workpiece, and the third main die seat can punch a hole at the end of the bolt while punching and forming the bolt, and the fourth main die seat can extrude an aluminum ball into a hole at the end of the workpiece while punching and forming the bolt, thereby achieving one-piece riveting forming, and during the punching process, the material clamping and transferring portion can transfer the workpiece processed by the front main die seat to the rear main die seat, thereby playing a role in loading and transferring the workpiece, therefore, the present application can achieve one-piece forming of bolt mortise points, with high processing efficiency, without the need for separate riveting point equipment and sites, thereby reducing processing costs.

Description

Technical Field

[0001] The present application relates to the technical field of bolt processing equipment, and in particular to an automatic forming device for welding bolt mortise points. Background Art

[0002] The purpose of welding bolt mortise is to increase the connection strength and stability between the bolt and the base material.

[0003] The traditional process route for welding bolt mortise points usually includes the following steps:

[0004] 1. Fine threading: fine processing of the raw materials of the bolts to ensure the accuracy and surface smoothness of the threads, usually using lathes, cutting tools and thread processing equipment;

[0005] 2. Cold heading: The bolt material after fine wire is formed into a standard bolt shape through a special cold deformation process. During the cold heading process, the bolt thread and bolt head and other parts will be accurately processed. Usually a cold heading machine is used;

[0006] 3. Riveting point: Before welding, the head or thread of the bolt will be riveted first, usually using a riveting machine or punch press;

[0007] 4. Welding: weld the base material at the riveting point;

[0008] 5. Packaging: After the rivet spot welding, the bolts will be packaged to protect the bolt surface and prevent the bolts from being damaged or corroded during transportation and use.

[0009] It can be seen that the traditional welding bolt mortise requires the use of lathes, cutting tools and thread processing equipment, cold heading machines, riveting machines or punching machines, etc. The equipment investment cost required for the entire process is relatively high. In particular, the riveting step in the traditional welding bolt mortise is equivalent to secondary processing riveting on the cold heading bolts. The riveting equipment costs about 70,000 to 150,000 yuan per unit, and the secondary processing also requires the configuration of corresponding processing sites, and loading and handling work are required, which increases the cost of personnel, equipment, sites, etc., and the efficiency of secondary processing riveting is low, and only about 20 bolts can be riveted per minute.

[0010] Therefore, the traditional welding bolt mortise processing requires a lot of equipment, the equipment cost is high, and the rivet points need secondary processing, resulting in high processing costs and low efficiency. It is necessary to propose a new technical solution to solve the problems existing in the prior art. Summary of the invention

[0011] The present application provides a welding bolt mortise automatic forming device to solve the problem of high cost and low efficiency in traditional welding bolt mortise processing.

[0012] In order to achieve the above objectives, this application provides the following technical solutions:

[0013] The present application provides a welding bolt mortise automatic forming device, comprising a main die portion, a punch die portion, a material clamping and transporting portion, and a material loading portion;

[0014] The main die portion comprises a first main die seat, a second main die seat, a third main die seat and a fourth main die seat arranged in sequence, each main die seat is provided with a mounting hole for mounting a workpiece at one end facing the punching die portion, and a driving mechanism for ejecting the punched workpiece from the mounting hole is provided at the other end of each main die seat;

[0015] The die portion comprises a first die seat arranged opposite to the first main die seat, a second die seat arranged opposite to the second main die seat, a third die seat arranged opposite to the third main die seat, and a fourth die seat arranged opposite to the fourth main die seat, each die seat can be driven to approach the main die seat corresponding thereto and perform die punching on the workpiece on the main die seat; the third main die seat can punch a hole at the end of the workpiece with the cooperation of the third die seat, and the fourth main die seat can extrude an aluminum ball into the hole at the end of the workpiece with the cooperation of the fourth die seat;

[0016] The material clamping and transferring part includes a material clamping table, on which a first clamp, a second clamp, a third clamp and a fourth clamp are sequentially arranged, the first clamp is used to move the workpiece clamped from the loading part to the mounting hole position of the first main mold base, the second clamp is used to clamp and move the workpiece ejected from the mounting hole position of the first main mold base to the mounting hole position of the second main mold base, the third clamp is used to clamp and move the workpiece ejected from the mounting hole position of the second main mold base to the mounting hole position of the third main mold base, and the fourth clamp is used to clamp and move the workpiece ejected from the mounting hole position of the third main mold base to the mounting hole position of the fourth main mold base; the workpiece ejected from the mounting hole position of the fourth main mold base falls into the finished product box.

[0017] Further in the above technical solution, a first pushing channel is formed in the first main mold base, and the first pushing channel is correspondingly connected to a mounting hole arranged at one end of the first main mold base; a driving mechanism arranged on the first main mold base includes a first push rod arranged in the first pushing channel, and a driving member driving the first push rod to move, and the first push rod can be driven to move along the first pushing channel to eject the workpiece inserted in the mounting hole; the first die base is used to punch the workpiece moved to the mounting hole of the first main mold base through the first fixture, and punch the workpiece into the mounting hole of the first main mold base, and the first push rod is reset under the pushing action of the workpiece.

[0018] Furthermore, a second ejection channel is formed in the second main mold base, and the second ejection channel is correspondingly connected to a mounting hole arranged at one end of the second main mold base; a driving mechanism arranged on the second main mold base includes a second ejector rod arranged in the second ejection channel, and a driving member driving the second ejector rod to move, and the second ejector rod can be driven to move along the second ejection channel to eject the workpiece inserted in the mounting hole; the second die base is used to punch the workpiece moved to the mounting hole of the second main mold base through the second fixture, and punch the workpiece into the mounting hole of the second main mold base, and the second ejector rod is reset under the pushing action of the workpiece.

[0019] Furthermore, a third pushing channel is formed in the third main mold base, and the third pushing channel includes a first tube cavity, a second tube cavity and a third tube cavity that are connected in sequence, and the third tube cavity is correspondingly connected to a mounting hole arranged at one end of the third main mold base; a third push rod is slidably installed in the first tube cavity, a first fixing plate is installed in the second tube cavity, a first push pin is installed in the middle of the first fixing plate, and a first push tube is slidably installed in the third tube cavity, the first push pin extends outward from a central through hole on the first push tube to a preset length, the third push rod is connected to the first push tube through a connecting rod, and a through hole allowing the connecting rod to pass through is opened on the first fixing plate.

[0020] Furthermore, the driving mechanism arranged on the third main mold base includes a driving member for driving the third push rod to move, and the third push rod can be driven to move toward the mounting hole where the workpiece is installed, and drive the first push tube to push the workpiece out of the mounting hole through the connecting rod; the third die base is used to punch the workpiece moved to the mounting hole of the third main mold base through the third fixture, and punch the workpiece into the mounting hole of the third main mold base, the first push tube and the third push rod are reset under the pushing action of the workpiece, and the first push pin is used to punch a hole at the end of the workpiece punched into the mounting hole.

[0021] Furthermore, the die portion includes a machine table and a driving mechanism for driving the machine table to move toward the main die portion, and four die seats are detachably connected to the machine table; the third die seat includes a fixed connecting plate detachably connected to the machine table and a punching plate arranged on a side plate surface of the fixed connecting plate, a threaded hole is provided on the punching plate, and a through hole corresponding to the threaded hole is provided on the fixed connecting plate, an adjusting screw is adapted to be installed in the threaded hole, and a fastening nut is provided on the adjusting screw, and the third die seat punches the workpiece moved to the mounting hole position of the third main die seat through the third fixture through the adjusting screw.

[0022] Furthermore, a fourth ejection channel is formed in the fourth main mold base, and the fourth ejection channel includes a first chamber, a second chamber and a third chamber which are connected in sequence, and the third chamber is correspondingly connected to a mounting hole arranged at one end of the fourth main mold base; a fourth ejector rod is slidably installed in the first chamber, a second fixing plate is installed in the second chamber, a second ejector pin is installed in the middle of the second fixing plate, a second push tube and a spring are installed in the third chamber, the spring is arranged between the second fixing plate and the second push tube, one end of the second ejector pin passes through the spring and is adapted to be plugged into the center channel of the second push tube, the center channel is a through hole opened on the center axis of the second push tube, the fourth ejector rod is connected to the second push tube through a push rod, and a through hole allowing the push rod to pass through is opened on the second fixing plate.

[0023] Furthermore, a pouring hole for pouring aluminum balls is provided on the side wall of the seat body of the fourth main mold seat, and a ball receiving hole for receiving the aluminum balls is provided on the second push tube, and the ball receiving hole is connected with the central channel; in the initial state, the fourth push rod is driven to drive the push rod to move to push the second push tube to the installation hole at one end of the fourth main mold seat, the ball receiving hole is correspondingly connected with the pouring hole, the second ejector pin extends to the edge of the ball receiving hole, and the aluminum ball falls into the central channel and abuts against the end of the second ejector pin.

[0024] Furthermore, the fourth die seat is used to punch the workpiece that is moved to the mounting hole of the fourth main die seat through the fourth fixture, and punch the workpiece into the mounting hole of the fourth main die seat, the second push tube and the fourth ejector rod move in the direction away from the workpiece under the pushing action of the workpiece, and the second ejector pin is used to cooperate with the fourth die seat to extrude the aluminum ball into the hole at the end of the workpiece; the fourth die seat is driven to reset after completing the punching action, and the workpiece in the mounting hole of the fourth main die seat is pushed out of the fourth main die seat by the spring and falls into the finished product box.

[0025] Furthermore, the fourth die seat includes a punching plate, a threaded hole is provided on the punching plate, an adjusting screw is adapted to be installed in the threaded hole, a fastening nut is provided on the adjusting screw, and the fourth die seat punches the workpiece moved to the mounting hole position of the fourth main die seat through the fourth clamp through the adjusting screw.

[0026] Furthermore, the workpiece clamped by the first clamp from the loading part is a cylindrical bar, the workpiece clamped by the second clamp from the mounting hole position of the first main die seat is a one-mold workpiece after being punched by the first die seat, the workpiece clamped by the third clamp from the mounting hole position of the second main die seat is a two-mold workpiece after being punched by the second die seat, and the workpiece clamped by the fourth clamp from the mounting hole position of the third main die seat is a three-mold workpiece after being punched by the third die seat, and the finished product dropped into the finished product box is a four-mold workpiece after being punched by the fourth die seat.

[0027] Furthermore, the first mold workpiece includes an initially formed bolt head and a screw rod.

[0028] Furthermore, the second mold workpiece includes a secondary molded bolt head and a screw rod.

[0029] Furthermore, the three-mold workpiece includes a bolt head and a screw rod formed three times, and the end of the screw rod formed three times forms a channel for filling the aluminum ball.

[0030] Furthermore, the four-die workpiece includes a finally formed bolt head and a screw rod, and the end of the finally formed screw rod is extruded and filled with aluminum balls.

[0031] Compared with the prior art, this application has at least the following beneficial effects:

[0032] 1. The automatic forming device for welding bolt mortise points provided by the present application comprises a main die portion, a punch die portion, a material clamping and transferring portion and a feeding portion, which is punched and matched by the main die portion and the punch die portion, the main die portion comprises four main die seats, one end of each main die seat facing the punch die portion can be used to mount a workpiece, and the other end is provided with a driving mechanism for ejecting the punched workpiece from the main die seat; the punch die portion comprises a punch die seat corresponding to the four main die seats one by one, the four main die seats cooperate with the four punch die seats to realize sequential forming of the workpiece, and the third main die seat can punch and form the bolt while punching and forming the bolt The end is punched, and the fourth main die seat can extrude aluminum balls into the hole at the end of the workpiece while the die is being formed, thereby realizing riveting one-piece forming. During the die punching process, the material clamping and transfer part can transfer the workpiece processed by the front main die seat to the rear main die seat, thereby playing the role of workpiece loading and transfer. Therefore, the automatic forming device for welding bolt mortise points provided in the present application can realize aluminum ball riveting while forming bolts. Compared with the secondary forming of traditional welding bolt mortise points, the present application has one-piece forming mortise points, with high processing efficiency, no need for separate riveting point equipment and sites, and reduced processing costs.

[0033] 2. The third main mold base in the present application is provided with an installation hole for installing the workpiece and a third pushing channel connected with the installation hole, the first fixing plate is fixedly arranged in the third pushing channel, a third pushing rod is arranged on one side of the first fixing plate, and a first pushing tube is arranged on the other side, the first pushing tube and the third pushing rod are connected by a connecting rod penetrating the first fixing plate, and the first pushing tube can be driven by the third pushing rod to move forward and backward relative to the ejector pin on the first fixing plate. When the workpiece is punched into the installation hole by the third die base, the workpiece pushes the first pushing tube to move backward, and the first ejector pin extends from the end of the first pushing tube. The extended part of the first ejector pin cooperates with the third die base to punch a hole at the end of the workpiece, and the hole formed at the end of the workpiece will be extruded and filled with aluminum balls after the subsequent process, so as to realize riveting integrated forming while forming the bolts, and when the punching is completed, the first pushing tube can be driven to move by driving the third pushing rod to eject the workpiece. Therefore, the structural design of the third main mold base in the present application can not only realize the punching of the end of the workpiece, but also can eject the workpiece after punching. The structure is ingenious and integrated with multiple functions.

[0034] 3. The fourth main mold base in the present application is provided with an installation hole for installing the workpiece and a fourth push channel connected to the installation hole, a second fixing plate is fixedly arranged in the fourth push channel, a fourth push rod is arranged on one side of the second fixing plate, a spring and a second push tube are arranged on the other side, a second push pin which is adapted to be plugged into the second push tube is arranged on the side of the second fixing plate facing the spring, the fourth push rod and the second push tube are connected by a push rod which passes through the second fixing plate, when the workpiece is punched into the installation hole under the action of the fourth die base, the workpiece pushes the second push tube backwards, and when the punching of the workpiece is completed, the workpiece will be ejected by the spring and fall into the finished product box.

[0035] 4. A structure for injecting aluminum balls is also provided in the fourth main mold base. A pouring hole for pouring aluminum balls is provided on the side wall of the seat body of the fourth main mold base. A central channel and a ball receiving hole for receiving the aluminum balls are provided on the second push tube. The central channel is a tube through hole. The central channel and the second ejector pin are adapted to be plugged in. The ball receiving hole connects the pouring hole and the central channel. That is, the aluminum balls injected into the fourth main mold base can fall from the pouring hole and the ball receiving hole into the central channel of the second push tube and abut against the second ejector pin. When the second push tube is pushed to the workpiece mounting hole at the end of the fourth main mold base, the pouring hole and the receiving hole are connected. The ball hole is connected, and an aluminum ball falls into the center channel. When the workpiece is punched into the installation hole under the action of the fourth die seat, the second ejector pin is fixed, and the second push tube moves backward. The injection hole and the ball receiving hole are blocked, and the aluminum ball that falls into the center channel is squeezed into the channel at the end of the workpiece under the action of the second ejector pin and the fourth die seat, and the riveting point is completed. Therefore, the present application uses the structural design of the fourth main die seat to enable bolt forming and aluminum ball riveting to be carried out simultaneously, thereby improving processing efficiency. After processing, the bolt can be automatically ejected by the spring. The overall structure is ingenious and multifunctional.

[0036] 5. The first main mold base and the second main mold base in the present application are mainly used for the preliminary forming of the bolts to ensure the stability of the product forming. Therefore, their structural functions are mainly reflected in the fixation of the workpiece by the mounting holes and the driving mechanism for ejecting the workpiece after the die is punched.

[0037] 6. The first die seat and the second die seat in the present application mainly cooperate with the first main die seat and the second main die seat to realize the initial die forming of the product. Therefore, it is mainly through the die head set toward the first main die seat and the second main die seat to perform die forming on the corresponding workpiece.

[0038] 7. The third die seat in the present application can not only cooperate with the third main die seat to perform bolt die forming, but also cooperate with the first ejector pin on the third main die seat to realize punching during die forming. In order to adapt to bolts of different lengths, a threaded hole is provided on the third die seat in the present application, and an adjusting screw is installed in the threaded hole, and a fastening nut is provided to fasten and install the adjusting screw. For bolts of different lengths, the protruding length of the adjusting screw can be adjusted to adapt to the processing during processing. The device has strong adaptability and high flexibility.

[0039] 8. The fourth die seat in the present application can not only cooperate with the fourth main die seat to perform bolt die forming, but also cooperate with the second ejector on the fourth main die seat to extrude the aluminum ball into the end channel of the workpiece during die forming. In order to adapt to bolts of different lengths, a threaded hole is provided on the fourth die seat in the present application, and an adjusting screw is installed in the threaded hole, and a fastening nut is provided to fasten and install the adjusting screw. For bolts of different lengths, the protruding length of the adjusting screw can be adjusted to adapt to the processing during processing. The device has strong adaptability and high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be understood that the specific shapes and structures shown in the drawings should not usually be regarded as limiting conditions for implementing the present application; for example, based on the technical concepts and exemplary drawings disclosed in the present application, those skilled in the art are able to easily make routine adjustments or further optimizations to the increase / decrease / attribution division, specific shapes, positional relationships, connection methods, and dimensional ratios of certain units (components).

[0041] Figure 1 A schematic diagram of the structural position correspondence between the punch die portion and the main die portion in the present application in an embodiment;

[0042] Figure 2A schematic diagram of the cross-sectional structure of the third punching die holder in the present application in one embodiment;

[0043] Figure 3 It is a schematic diagram of the cross-sectional structure of the first main mold base in the present application in an embodiment, in which one end of the first ejector rod is in the workpiece mounting hole position and has completed the ejection action of the workpiece;

[0044] Figure 4 Schematic diagram of the cross-sectional structure of the second main mold base in the present application in one embodiment, in which one end of the second ejector rod is in the workpiece mounting hole position and has completed the ejection action of the workpiece;

[0045] Figure 5 1 is a schematic cross-sectional structure diagram of the third main mold base in the present application in one embodiment, which shows the state where the first push tube is pushed back to its original position by the workpiece. Of course, the figure only shows the installation hole position for installing the workpiece, and does not show the workpiece;

[0046] Figure 6 It is a schematic diagram of the cross-sectional structure of the fourth main mold base in the present application in an embodiment, which shows the state in which the second push tube in the fourth main mold base is located in the installation hole position and the injection hole and the ball receiving hole are aligned and connected in the initial state.

[0047] Description of reference numerals:

[0048] 1. First main mold base; 11. First ejector pin;

[0049] 2. Second main mold base; 21. Second ejector pin; 22. Installation hole;

[0050] 3. The third main mold base; 31. The third ejector rod; 32. The first fixing plate; 33. The first ejector pin; 34. The first push tube; 35. The connecting rod; 36. The mounting hole;

[0051] 4. Fourth main mold base; 41. Fourth ejector pin; 42. Second fixing plate; 43. Second ejector pin; 44. Second push tube; 45. Spring; 46. Push rod; 47. Injection hole; 48. Aluminum ball; 49. Ball receiving hole;

[0052] 5. The third punching die seat; 51. The fixed connecting plate; 52. The punching die plate; 53. The adjusting screw rod; 54. The fastening nut;

[0053] 6. The fourth punching die seat;

[0054] 7. The first punching die seat;

[0055] 8. Second die seat;

[0056] 9. Machine. DETAILED DESCRIPTION

[0057] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0058] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0059] The terms such as "upper", "lower", "left", "right", "middle", etc. used in this application are usually used to facilitate intuitive understanding by comparing with the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product. Without departing from the technical concept disclosed in this application, changes in these relative positional relationships should also be regarded as the scope of this application.

[0060] In order to solve the problems existing in the prior art, the present application provides an automatic forming device for welding bolt mortise points, which mainly includes a main mold part, a die part, a material clamping and transporting part and a feeding part, wherein: the main mold part and the die part are arranged relatively to each other, the main mold part includes four main die seats, each main die seat can be equipped with a workpiece at one end facing the die part, and a driving mechanism is arranged at the other end to eject the workpiece after die punching from the main die seat; the die part includes die seats corresponding to the four main die seats one by one, and the four main die seats cooperate with the four die seats to realize the sequential forming of the workpieces. During the die punching process, the material clamping and transporting part can clamp the workpiece to be processed from the feeding part, and transport the workpiece processed by the front main die seat to the rear main die seat, so as to ensure that the processing process is carried out continuously and sequentially. The structure of the automatic forming device for welding bolt mortise points is described in detail below in conjunction with the accompanying drawings.

[0061] The main mold part in the present application includes a first main mold base 1, a second main mold base 2, a third main mold base 3 and a fourth main mold base 4 which are arranged in sequence. Of course, according to the change of bolt processing requirements, the four main mold bases can be appropriately increased to five or six. The structural function of the additional main mold base is mainly to ensure the stability and accuracy of product molding.

[0062] Among the above four main die bases, one end of each main die base facing the die portion is provided with a mounting hole for mounting the workpiece, and the other end of each main die base is provided with a driving mechanism for ejecting the workpiece after die punching from the mounting hole.

[0063] The die part in the present application mainly includes a first die seat 7, a second die seat 8, a third die seat 5 and a fourth die seat 6. The four die seats correspond to the four main die seats one by one and are arranged relatively. Figure 1Each die seat can be driven to approach the corresponding main die seat and punch the workpiece on the main die seat; the first die seat 7 and the second die seat 8 mainly realize bolt die forming through the die heads thereon, the third main die seat 3 can punch a hole at the end of the workpiece with the cooperation of the third die seat 5, and the fourth main die seat 4 can extrude the aluminum ball 48 into the hole at the end of the workpiece with the cooperation of the fourth die seat 6. Therefore, the present application realizes the integrated forming of the bolt mortise through the arrangement of the third main die seat 3 and the fourth main die seat 4.

[0064] The material clamping and transporting part in the present application mainly includes a material clamping table, on which the first clamp, the second clamp, the third clamp and the fourth clamp are arranged in sequence. The first clamp is used to move the workpiece clamped from the feeding part to the mounting hole position of the first main mold base 1, the second clamp is used to clamp and move the workpiece ejected from the mounting hole position of the first main mold base 1 to the mounting hole position of the second main mold base 2, the third clamp is used to clamp and move the workpiece ejected from the mounting hole position of the second main mold base 2 to the mounting hole position of the third main mold base 3, and the fourth clamp is used to clamp and move the workpiece ejected from the mounting hole position of the third main mold base 3 to the mounting hole position of the fourth main mold base 4; the workpiece ejected from the mounting hole position of the fourth main mold base 4 falls into the finished product box. The material clamping table is connected to the driving mechanism, and the material clamping table can move back and forth under the drive of the driving mechanism to complete the cyclic material clamping and transporting action.

[0065] Of course, in other embodiments, each clamp can also be directly driven to move by a driving mechanism, and the driving mechanism can be any traditional mechanical component that can meet the action requirements, including but not limited to traditional transmission mechanisms composed of gears, racks, cams, crank connecting rods and other components.

[0066] In one embodiment, see Figure 3 A first pushing channel is formed in the first main mold base 1, and the first pushing channel is correspondingly connected to a mounting hole arranged at one end of the first main mold base 1; a driving mechanism arranged on the first main mold base 1 includes a first push rod 11 arranged in the first pushing channel, and a driving member driving the first push rod 11 to move, and the driving member can be a crank connecting rod structure or a cam structure, and of course it can also be other linear driving mechanisms.

[0067] The above-mentioned first ejector rod 11 can move along the first ejection channel to eject the workpiece inserted in the mounting hole; the first die seat 7 is used to punch the workpiece moved to the mounting hole of the first main die seat 1 through the first fixture, and punch the workpiece into the mounting hole of the first main die seat 1, and the first ejector rod 11 is reset under the ejection action of the workpiece.

[0068] In one embodiment, see Figure 4A second pushing channel is formed in the second main mold base 2, and the second pushing channel is correspondingly connected to the mounting hole arranged at one end of the second main mold base 2; the driving mechanism arranged on the second main mold base 2 includes a second push rod 21 arranged in the second pushing channel, and a driving member driving the second push rod 21 to move, and the driving member can be a crank connecting rod structure or a cam structure, and of course it can also be other linear driving mechanisms.

[0069] The above-mentioned second ejector rod 21 can move along the second ejection channel to eject the workpiece inserted in the mounting hole; the second die base 8 is used to punch the workpiece moved to the mounting hole of the second main die base 2 through the second fixture, and punch the workpiece into the mounting hole of the second main die base 2, and the second ejector rod 21 is reset under the ejection action of the workpiece.

[0070] In one embodiment, see Figure 5 A third pushing channel is formed in the third main mold base 3, and the third pushing channel includes a first tube cavity, a second tube cavity and a third tube cavity which are connected in sequence, and the third tube cavity is correspondingly connected to the mounting hole arranged at one end of the third main mold base 3; a third push rod 31 is slidably installed in the first tube cavity, a first fixing plate 32 is installed in the second tube cavity, a first push pin 33 is installed in the middle of the first fixing plate 32, and a first push tube 34 is slidably installed in the third tube cavity, and the first push pin 33 extends outward from the central through hole on the first push tube 34 to a preset length. The third push rod 31 is connected to the first push tube 34 through a connecting rod 35, and a through hole allowing the connecting rod 35 to pass through is opened on the first fixing plate 32.

[0071] The driving mechanism arranged on the third main mold base 3 includes a driving member for driving the third push rod 31 to move. The third push rod 31 can be driven to move toward the mounting hole where the workpiece is installed, and drive the first push tube 34 to push the workpiece out of the mounting hole through the connecting rod 35; the third die base 5 is used to punch the workpiece moved to the mounting hole of the third main mold base 3 through the third fixture, and punch the workpiece into the mounting hole of the third main mold base 3. The first push tube 34 and the third push rod 31 are reset under the pushing action of the workpiece, and the first push pin 33 is used to punch a hole at the end of the workpiece punched into the mounting hole.

[0072] The structural design of the third main mold base 3 can realize drilling. The structural dimensions of the third main mold base 3 can be customized according to needs. The depth and diameter of the drilling can be determined according to the size of the aluminum ball 48. The length and diameter of the first ejector pin 33 can also be customized according to the drilling needs. Since the workpiece does not need to be fully inserted into the mold cavity, the installation hole on the third main mold base 3 does not need to be too deep. It is sufficient to ensure that the workpiece can stand firmly on the third main mold base 3 in a limited space.

[0073] In one embodiment, see Figure 6A fourth push channel is formed in the fourth main mold base 4, and the fourth push channel includes a first chamber, a second chamber and a third chamber which are connected in sequence, and the third chamber is connected to the mounting hole arranged at one end of the fourth main mold base 4; a fourth push rod 41 is slidably installed in the first chamber, a second fixing plate 42 is installed in the second chamber, a second push pin 43 is installed in the middle of the second fixing plate 42, and a second push tube 44 and a spring 45 are installed in the third chamber, the spring 45 is arranged between the second fixing plate 42 and the second push tube 44, one end of the second push pin 43 passes through the spring 45 and is adapted to be plugged into the central channel of the second push tube 44, and the central channel is a through hole opened on the central axis of the second push tube 44, the fourth push rod 41 is connected to the second push tube 44 through a push rod 46, and a through hole allowing the push rod 46 to pass through is opened on the second fixing plate 42.

[0074] A pouring hole 47 for pouring aluminum balls 48 is provided on the side wall of the fourth main mold base 4, and a ball receiving hole 49 for receiving the aluminum balls 48 is provided on the second push tube 44, and the ball receiving hole 49 is connected with the central channel; in the initial state, the fourth push rod 41 is driven to drive the push rod 46 to move to push the second push tube 44 to the installation hole at one end of the fourth main mold base 4, the ball receiving hole 49 is correspondingly connected with the pouring hole 47, the second ejector pin 43 extends to the edge of the ball receiving hole 49, and the aluminum ball 48 falls into the central channel and abuts against the end of the second ejector pin 43.

[0075] The fourth die seat 6 is used to punch the workpiece that is moved to the mounting hole of the fourth main die seat 4 through the fourth fixture, and punch the workpiece into the mounting hole of the fourth main die seat 4. The second push tube 44 and the fourth push rod 41 move in the direction away from the workpiece under the pushing action of the workpiece, and the second push pin 43 is used to cooperate with the fourth die seat 6 to extrude the aluminum ball 48 into the hole at the end of the workpiece; the fourth die seat 6 is driven to reset after completing the punching action, and the workpiece in the mounting hole of the fourth main die seat 4 is pushed out of the fourth main die seat 4 by the spring 45 and falls into the finished product box.

[0076] The fourth main mold base 4 is cleverly designed with a second push tube 44 and a second ejector pin 43, and a falling channel for the aluminum ball 48 is set, so that the aluminum ball 48 can smoothly reach the center position of the mold. The fourth punch base 6 presses the workpiece into the fourth main mold base 4 to squeeze the aluminum ball 48 so that it is firmly pushed into the hole at the end of the bolt. After completion, the workpiece is ejected by the spring 45 in the fourth main mold base 4. The overall structural design is clever and multifunctional.

[0077] In one embodiment, the die portion includes a machine table 9 and a driving mechanism for driving the machine table 9 to move toward the main die portion. Four die seats are detachably connected to the machine table 9. Specifically, the first die seat 7 and the second die seat 8 have the same structure, including a connecting plate detachably connected to the machine table 9 and a die head arranged on the connecting plate. The third die seat 5 and the fourth die seat 6 have the same structure. Figure 2, including a fixed connecting plate 51 detachably connected to the machine table 9 and a punching plate 52 arranged on a side plate surface of the fixed connecting plate 51, a threaded hole is opened on the punching plate 52, and a through hole corresponding to the threaded hole is opened on the fixed connecting plate 51, and an adjusting screw 53 is adapted to be installed in the threaded hole, and a fastening nut 54 is arranged on the adjusting screw 53. Therefore, the third punching die seat 5 can punch the workpiece moved to the mounting hole position of the third main die seat 3 through the third clamp through the adjusting screw 53 thereon; the fourth punching die seat 6 can punch the workpiece moved to the mounting hole position of the fourth main die seat 4 through the adjusting screw 53 thereon. When the third punching die seat 5 is to adapt to short-sized workpieces, it can be as follows Figure 2 The adjusting screw rod 53 is moved in the direction of the arrow A in the middle. When the third punching die seat 5 is adapted to a long workpiece, it can be Figure 2 Move the adjusting screw rod 53 in the direction of the arrow B.

[0078] The workpiece clamped by the first clamp in the present application from the feeding part is a cylindrical bar stock, and the cooperation between the dies of the main mold part and the die part is to gradually form the cylindrical bar stock into bolts and realize the rivet point processing at the same time. The workpiece clamped by the second clamp from the mounting hole position of the first main mold base 1 is a one-mold workpiece after being punched by the first die base 7, and the one-mold workpiece includes the initially formed bolt head and screw rod. The workpiece clamped by the third clamp from the mounting hole position of the second main mold base 2 is a two-mold workpiece after being punched by the second die base 8, and the two-mold workpiece includes the secondary formed bolt head and screw rod. The workpiece clamped by the fourth clamp from the mounting hole position of the third main mold base 3 is a three-mold workpiece after being punched by the third die base 5, and the three-mold workpiece includes the three-mold bolt head and screw rod, and the end of the three-mold screw rod forms a channel for filling the aluminum ball 48. The finished product dropped into the finished product box is a four-die workpiece after being punched by the fourth punch seat 6 , and the four-die workpiece includes a finally formed bolt head and a screw rod, and the end of the finally formed screw rod is extruded and filled with aluminum balls 48 .

[0079] Therefore, the automatic forming device for welding bolt mortise points provided by the present application can realize aluminum ball riveting while forming the bolts. Compared with the secondary forming of traditional welding bolt mortise points, the present application realizes fine wire and cold heading forming through the cooperation of the die part and the main die part, simplifies the processing procedure, realizes the one-piece forming of the bolt mortise points, has high processing efficiency, does not require separate riveting equipment and sites, and reduces processing costs.

[0080] The automatic forming device for welding bolt mortise points provided in the present application can process 42 bolts per minute, which significantly improves the processing efficiency; and the workpiece processed by the bolt one-piece forming mortise points has high appearance quality, without aluminum ball and excess material overflow, thereby improving the arc striking and ignition quality during the welding process; since the bolt one-piece forming mortise points of the present application, the process of secondary forming of the rivet points is omitted, the number of product handling times is reduced, the site occupation is reduced, and space is released; one machine can produce finished products, and the products can be directly packaged and stored after one-piece forming, thereby reducing equipment investment.

[0081] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0082] The above is a relatively specific and detailed description of the present application through general description and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations can be made to these specific embodiments; however, as long as they do not deviate from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. An automatic forming device for welding bolt mortise points, characterized in that: It includes main die part, punch die part, material clamping and transferring part and loading part; The main die portion comprises a first main die seat, a second main die seat, a third main die seat and a fourth main die seat arranged in sequence, each main die seat is provided with a mounting hole for mounting a workpiece at one end facing the punching die portion, and the other end of each main die seat is provided with a driving mechanism for ejecting the punched workpiece from the mounting hole; The die portion includes a first die seat arranged opposite to the first main die seat, a second die seat arranged opposite to the second main die seat, a third die seat arranged opposite to the third main die seat, and a fourth die seat arranged opposite to the fourth main die seat, each die seat can be driven to approach the main die seat corresponding thereto and perform die punching on the workpiece on the main die seat; The third main die seat can punch a hole at the end of the workpiece in cooperation with the third punch seat, and the fourth main die seat can extrude an aluminum ball into the hole at the end of the workpiece in cooperation with the fourth punch seat; The material clamping and transferring part comprises a material clamping platform, on which a first clamp, a second clamp, a third clamp and a fourth clamp are sequentially arranged, the first clamp is used to move the workpiece clamped from the feeding part to the mounting hole position of the first main mold base, the second clamp is used to clamp and move the workpiece ejected from the mounting hole position of the first main mold base to the mounting hole position of the second main mold base, the third clamp is used to clamp and move the workpiece ejected from the mounting hole position of the second main mold base to the mounting hole position of the third main mold base, and the fourth clamp is used to clamp and move the workpiece ejected from the mounting hole position of the third main mold base to the mounting hole position of the fourth main mold base; the workpiece ejected from the mounting hole position of the fourth main mold base falls into the finished product box; A fourth ejection channel is formed in the fourth main mold base, and the fourth ejection channel includes a first chamber, a second chamber, and a third chamber that are connected in sequence, and the third chamber is correspondingly connected to a mounting hole arranged at one end of the fourth main mold base; A fourth push rod is slidably installed in the first chamber, a second fixing plate is installed in the second chamber, a second push pin is installed in the middle of the second fixing plate, a second push tube and a spring are installed in the third chamber, the spring is arranged between the second fixing plate and the second push tube, one end of the second push pin passes through the spring and is adapted to be plugged into the central hole of the second push tube, the central hole is a through hole opened on the central axis of the second push tube, the fourth push rod is connected to the second push tube through a push rod, and a through hole allowing the push rod to pass through is opened on the second fixing plate; A pouring hole for pouring aluminum balls is provided on the side wall of the seat body of the fourth main mold seat, and a ball receiving hole for receiving aluminum balls is provided on the second push tube, and the ball receiving hole is communicated with the central channel; In the initial state, the fourth ejector rod is driven to move the push rod to push the second push tube to the installation hole at one end of the fourth main mold base, the ball receiving hole is connected to the pouring hole, the second ejector pin extends to the edge of the ball receiving hole, and the aluminum ball falls into the central hole and abuts against the end of the second ejector pin; The fourth punch seat is used to punch the workpiece moved to the installation hole of the fourth main die seat through the fourth fixture, and punch the workpiece into the installation hole of the fourth main die seat, the second push tube and the fourth ejector move in the direction away from the workpiece under the pushing action of the workpiece, and the second ejector pin is used to cooperate with the fourth punch seat to extrude the aluminum ball into the hole at the end of the workpiece; The fourth punching die seat is driven to reset after completing the punching action, and the workpiece in the mounting hole of the fourth main die seat is pushed out of the fourth main die seat by the spring and falls into the finished product box.

2. The automatic forming device for welding bolt mortise points according to claim 1, characterized in that: A first pushing channel is formed in the first main mold base, and the first pushing channel is correspondingly connected to a mounting hole arranged at one end of the first main mold base; The driving mechanism disposed on the first main mold base includes a first ejector rod disposed in the first ejection channel, and a driving member driving the first ejector rod to move, wherein the first ejector rod can be driven to move along the first ejection channel to eject the workpiece inserted in the installation hole; The first punching die seat is used to punch the workpiece moved to the installation hole of the first main die seat through the first fixture, and punch the workpiece into the installation hole of the first main die seat, and the first ejector pin is reset under the ejection action of the workpiece.

3. The automatic forming device for welding bolt mortise points according to claim 1, characterized in that: A second push channel is formed in the second main mold base, and the second push channel is correspondingly connected to a mounting hole arranged at one end of the second main mold base; The driving mechanism disposed on the second main mold base includes a second ejector rod disposed in the second ejection channel, and a driving member driving the second ejector rod to move, wherein the second ejector rod can be driven to move along the second ejection channel to eject the workpiece inserted in the installation hole; The second punching die seat is used to punch the workpiece moved to the installation hole of the second main die seat through the second fixture, and punch the workpiece into the installation hole of the second main die seat, and the second ejector pin is reset under the ejection action of the workpiece.

4. The automatic forming device for welding bolt mortise points according to claim 1, characterized in that: A third push channel is formed in the third main mold base, and the third push channel includes a first tube cavity, a second tube cavity and a third tube cavity which are connected in sequence, and the third tube cavity is correspondingly connected to a mounting hole arranged at one end of the third main mold base; A third push rod is slidably installed in the first tube cavity, a first fixing plate is installed in the second tube cavity, a first push pin is installed in the middle of the first fixing plate, a first push tube is slidably installed in the third tube cavity, the first push pin extends outward from a central through hole on the first push tube to a preset length, the third push rod is connected to the first push tube through a connecting rod, and a through hole is opened on the first fixing plate to allow the connecting rod to pass through.

5. The automatic forming device for welding bolt mortise points according to claim 4, characterized in that: The driving mechanism disposed on the third main mold base includes a driving member for driving the third ejector rod to move, the third ejector rod can be driven to move toward the mounting hole where the workpiece is mounted, and drives the first ejector tube to eject the workpiece out of the mounting hole through the connecting rod; The third die seat is used to punch the workpiece moved to the mounting hole of the third main die seat through the third fixture, and punch the workpiece into the mounting hole of the third main die seat, the first push tube and the third ejector rod are reset under the pushing action of the workpiece, and the first ejector pin is used to punch a hole at the end of the workpiece punched into the mounting hole.

6. The automatic forming device for welding bolt mortise points according to claim 1 or 5, characterized in that: The die section includes a machine platform and a driving mechanism for driving the machine platform to move toward the main die section, and four die seats are detachably connected to the machine platform; The third die seat includes a fixed connecting plate detachably connected to the machine table and a punching plate arranged on a side plate surface of the fixed connecting plate, a threaded hole is opened on the punching plate, and a through hole corresponding to the threaded hole is opened on the fixed connecting plate, an adjusting screw rod is adapted to be installed in the threaded hole, and a fastening nut is arranged on the adjusting screw rod. The third die seat punches the workpiece moved to the installation hole position of the third main die seat through the third clamp through the adjusting screw rod.

7. The automatic forming device for welding bolt mortise points according to claim 1, characterized in that: The fourth die seat includes a punch plate, a threaded hole is provided on the punch plate, an adjusting screw is adapted to be installed in the threaded hole, a fastening nut is provided on the adjusting screw, and the fourth die seat punches the workpiece moved to the installation hole position of the fourth main die seat through the fourth clamp through the adjusting screw.

8. The automatic forming device for welding bolt mortise points according to claim 1, characterized in that: The workpiece clamped by the first clamp from the loading part is a cylindrical bar, the workpiece clamped by the second clamp from the mounting hole of the first main die seat is a one-die workpiece after being punched by the first die seat, the workpiece clamped by the third clamp from the mounting hole of the second main die seat is a two-die workpiece after being punched by the second die seat, the workpiece clamped by the fourth clamp from the mounting hole of the third main die seat is a three-die workpiece after being punched by the third die seat, and the finished product dropped into the finished product box is a four-die workpiece after being punched by the fourth die seat; The first mold workpiece includes an initially formed bolt head and a screw rod; The second mold workpiece includes a secondary molded bolt head and a screw rod; The three-mold workpiece includes a bolt head and a screw rod formed three times, and the end of the screw rod formed three times forms a channel for filling the aluminum ball; The four-die workpiece includes a final-formed bolt head and a screw rod, and the end of the final-formed screw rod is extruded and filled with aluminum balls.

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