A stamping and forming equipment for internal hex bolts
The multi-station automated production line driven by the central rotary device has solved the problems of high labor intensity and safety hazards in the production of internal hexagonal bolts, and achieved efficient automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEFEI CHUNHUA HOISTING MASCH CO LTD
- Filing Date
- 2026-03-27
- Publication Date
- 2026-06-02
AI Technical Summary
The existing manufacturing process for internal hex bolts suffers from problems such as high manual labor intensity, numerous safety hazards, and low production efficiency.
The system employs a central rotating device to drive multiple telescopic arms with load-bearing components. Through an automated production line with four stations—loading, stamping, unloading, and inspection—it achieves automatic directional supply of bolt blanks, stamping, automatic unloading and inspection of finished products.
It has enabled automated production without human intervention, which has improved production efficiency, reduced safety risks, and shortened the processing cycle.
Smart Images

Figure CN122125104A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of stamping and forming equipment, and in particular relates to a stamping and forming equipment for internal hexagonal bolts. Background Technology
[0002] In today's machinery manufacturing and assembly industries, bolts, as one of the most basic and widely used mechanical fasteners, directly affect the quality, reliability, and manufacturing cost of the final product through their performance, precision, and production efficiency. Hex socket head cap screws, also known as socket head cap screws, play a crucial role in many fields such as precision instruments, high-end equipment, automobiles, aerospace, and electronics due to their aesthetically pleasing cylindrical head shape, even wrench force distribution, ease of installation in countersunk holes, and resistance to wrench slippage.
[0003] Currently, the internal hexagonal groove of the head of a hexagonal socket head cap screw is mainly formed by stamping. This process uses a high-strength die to apply enormous pressure to the metal blank of the bolt head, causing plastic deformation within the die cavity, thus forming the internal hexagonal groove through cold working. However, in existing production technologies, the process cycle typically includes the following steps: The operator first manually picks up the bolt blank to be processed from the material box, then precisely places it in a dedicated positioning die on the press table, manually or semi-automatically ensuring accurate axial and radial positioning. Subsequently, the operator triggers the press, and the punch descends at high speed under enormous pressure, impacting the bolt blank head in the die, instantly completing the plastic forming of the internal hexagonal groove. After stamping, the punch returns to its original position, and the operator must manually remove the finished bolt from the die again, place it in a finished product collection container, and clean the die working area to prepare for the next processing cycle.
[0004] This method involves extremely high manual labor intensity, poses safety hazards in the working environment, and has low production efficiency, making it difficult to meet the needs of large-scale production. Summary of the Invention
[0005] The purpose of this invention is to provide a stamping and forming equipment for internal hexagonal bolts, which drives multiple telescopic arms with load-bearing components through a central rotating device to pass through four stations in the circumferential direction in sequence: loading, stamping, unloading, and inspection, thus solving the problems raised in the prior art.
[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:
[0007] This invention relates to a stamping and forming equipment for internal hexagonal bolts, comprising a rotating device, an end of which is connected to a base, and at least two horizontally oriented telescopic arms connected to the periphery of the base. Each telescopic arm has a bearing member connected to its end. The bearing member is used to support bolt blanks or finished bolts. A feeding station and a stamping station are arranged around the rotating device, with a feeding device and a stamping device respectively installed at the feeding station and stamping station. The feeding device includes a vibrating feeding disc and a material channel connected to the outlet of the vibrating feeding disc. Each telescopic arm includes a cooperating inner sleeve and an outer sleeve. The outer sleeve is fixed to the base, and a telescopic drive member is installed on the inner bottom side of the outer sleeve. The output end of the telescopic drive member is connected to a slider that slides along the inner wall of the inner sleeve. A spring is connected between the slider and the inner bottom side of the inner sleeve, and a vertical drive rod is connected to the outer wall of the inner sleeve.
[0008] Furthermore, a guide plate is connected to the outer periphery of the rotating device located between the rotating device and the material channel via a first connecting rod. The guide plate has an "M"-shaped arc-shaped guide surface on the side near the rotating device. When the rotating device drives the bearing to rotate and approach the end position of the material channel, the driving rod moves in close contact with the arc-shaped guide surface.
[0009] Furthermore, the support member includes a U-shaped block connected to the end of the inner sleeve. A pair of guide posts are provided inside the U-shaped block. A telescopic member is provided on the inner wall of the U-shaped block between the two guide posts. A movable arm is connected to the end of the telescopic member. The guide posts pass through the movable arm. A circular box is connected to the end of the movable arm. A slot is opened on one side of the circular box. The opening direction of the slot is the same as the length direction of the telescopic arm.
[0010] Furthermore, the stamping device includes a base plate, the upper surface of which is provided with a positioning cylinder for placing bolt blanks; the upper surface of the base plate located on both sides of the positioning cylinder is connected to a top plate by a vertical rod, and the top plate located directly above the positioning cylinder has an opening through which a stamping punch passes.
[0011] Furthermore, the bottom side of the base plate is connected to a mounting plate via a support column, and the mounting plate is equipped with an ejector cylinder. The output end of the ejector cylinder is connected to a push rod inserted into the positioning cylinder.
[0012] Furthermore, a guide plate two is connected to the outer periphery of the rotating device located between the rotating device and the stamping device via a second connecting rod. The guide plate two has an arc-shaped guide surface two in the shape of an "M" on the side near the rotating device. When the rotating device drives the bearing to rotate and move closer to the stamping device, the driving rod moves in close contact with the arc-shaped guide surface two.
[0013] Furthermore, a material unloading station and an inspection station are also provided on the periphery of the rotating device; the material loading station, stamping station, material unloading station and inspection station are arranged sequentially along the periphery of the rotating device; a material unloading device and an inspection device are respectively installed at the material unloading station and the inspection station.
[0014] Furthermore, the feeding device includes a horizontal support plate connected to the outer periphery of the rotating device. A side mounting plate is provided on the upper surface of the horizontal support plate. One side of the side mounting plate is connected to a push plate via a telescopic push rod. A guide telescopic rod is also connected between the push plate and the side mounting plate. A side drive plate is connected to the end of the horizontal support plate. The top of the side drive plate has a horizontal surface. Arc-shaped guide surfaces are provided at the ends of the side drive plates located on both sides of the horizontal surface. When the rotating device drives the bearing component to rotate past the side drive plate, the bottom end face of the finished bolt abuts against the top surface of the side drive plate.
[0015] Furthermore, the detection device includes an infrared emitting module and an infrared receiving module symmetrically arranged, located on the upper and lower sides of the circular box body, respectively.
[0016] Furthermore, the rotating device includes a housing, a drive motor, and a support shaft. The drive motor is connected to the bottom of the support shaft via a reducer. The base is fixed to the top of the support shaft. A bearing hole is opened on the top of the housing. The support shaft is installed in the inner ring of the bearing hole. The drive motor is installed inside the housing.
[0017] The present invention has the following beneficial effects:
[0018] 1. The equipment of the present invention uses a central rotating device to drive multiple telescopic arms with load-bearing components to pass through four stations in the circumferential direction in sequence: loading, stamping, unloading and inspection, thus constructing an automated production line with continuous operation of multiple stations.
[0019] 2. The vibrating feeding tray and material channel of this invention realize the automatic directional supply of bolt blanks; the stamping station completes the core forming process; the unloading device realizes the automatic unloading and collection of finished products through its ingenious structure; the detection station can automatically confirm whether the unloading is completed; the whole process does not require direct manual intervention in picking and placing materials, which not only liberates operators from high-intensity and high-risk repetitive labor and greatly improves the safety of operation, but also significantly shortens the processing cycle of a single product and significantly improves the overall production efficiency through the close connection of processes and continuous operation of equipment.
[0020] 3. The present invention adopts a mechanical guiding mechanism with a guide plate. Through the cooperation of the drive rod and the "M"-shaped arc guide surface, the positioning of the carrier component in the loading station and the stamping station is precisely controlled.
[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the stamping forming equipment of the present invention. Figure 1 ;
[0024] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;
[0025] Figure 3 for Figure 1 Enlarged view of a section at point B in the middle;
[0026] Figure 4 This is a schematic diagram of the stamping forming equipment of the present invention. Figure 2 ;
[0027] Figure 5 for Figure 4 Enlarged view of a section at point C;
[0028] Figure 6 for Figure 4 Enlarged view of a section at point D;
[0029] Figure 7 for Figure 1 The front view;
[0030] Figure 8 for Figure 1 Rear view;
[0031] Figure 9 This is a schematic diagram of the telescopic arm structure of the present invention;
[0032] The attached diagram lists the components represented by each number as follows:
[0033] 1-Pressing device, 2-Material channel, 3-Rotating device, 4-Telescopic arm, 5-Bearing component, 10-Base plate, 11-Positioning cylinder, 12-Vertical rod, 13-Top plate, 16-Second connecting rod, 17-Guide plate two, 18-Support column, 19-Ejection cylinder, 30-Base, 31-Horizontal support plate, 32-Side mounting plate, 33-Telescopic push rod, 34-Guide telescopic rod, 35-Push plate, 36-Side drive plate, 37-Guide plate one, 38-First connecting rod, 4 0-Outer sleeve, 41-Inner sleeve, 43-Telescopic drive component, 44-Slider, 45-Spring, 46-Drive rod, 50-U-shaped block, 51-Telescopic component, 52-Guide column, 53-Moving arm, 54-Circular box, 61-Infrared emitting module, 62-Infrared receiving module, 100-Bolt blank, 101-Finished bolt, 131-Opening, 181-Mounting plate, 361-Arc-shaped guide surface three, 371-Arc-shaped guide surface one, 541-Slot. Detailed Implementation
[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0035] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.
[0036] Please see Figure 1 and 4As shown in Figures 7-8, this invention is a stamping and forming equipment for internal hexagonal bolts, comprising a rotating device 3. The rotating device 3 includes a housing containing a drive motor and a reducer. The drive motor drives a support shaft to rotate via the reducer. A base 30 is fixedly connected to the top of the support shaft. A bearing hole is formed in the top of the housing, and the support shaft is installed on the inner ring of the bearing hole. Four telescopic arms 4 are horizontally connected to the periphery of the base 30, and a bearing member 5 is connected to the end of each telescopic arm 4. A loading station, a stamping station, a unloading station, and an inspection station are sequentially arranged around the rotating device 3. The device is equipped with a feeding device, a stamping device 1, a unloading device, and a detection device. During operation, the drive motor drives the support shaft, base 30, all telescopic arms 4, and bearing components 5 to rotate intermittently, thereby conveying the bolt blank 100 to the feeding station and stamping station arranged around the rotating device 3. After stamping at the stamping station, the bolt finished product 101 is formed. The bolt finished product 101 is conveyed to the unloading station under the intermittent rotation of the bearing components 5. The unloading device completes the unloading at the unloading station. At the detection station, the detection device detects whether the bolt finished product 101 moved to the detection station has completed the unloading action at the unloading station.
[0037] To facilitate stamping, such as Figure 4-5 The stamping device 1 of the present invention includes a base plate 10, and a positioning cylinder 11 for placing a bolt blank 100 is provided on the upper surface of the base plate 10. A top plate 13 is connected to the upper surface of the base plate 10 on both sides of the positioning cylinder 11 by a vertical rod 12. The top plate 13 located directly above the positioning cylinder 11 has an opening 131 through which a stamping punch passes. A mounting plate 181 is connected to the bottom side of the base plate 10 by a support column 18. An ejector cylinder 19 is mounted on the mounting plate 181. The output end of the ejector cylinder 19 is connected to an ejector rod inserted into the positioning cylinder 11. During operation, the bolt blank 100 is placed vertically in the positioning cylinder 11 of the stamping device 1. In this process, the positioning cylinder 11 ensures that the bolt blank 100 is accurately positioned and stable during the stamping process. The punch of the punch press moves downward from above, passes through the opening 131 on the top plate 13 of the stamping device, and applies a huge vertical punching force to the head of the bolt blank 100 located directly below it. After the stamping is completed, the punch retracts, and the ejector cylinder 19 installed below the base plate 10 is activated. The ejector cylinder 19 pushes the ejector rod upward, and the ejector rod inserts into the bottom of the positioning cylinder 11, pushing the stamped internal hexagon bolt finished product 101 upward from the positioning cylinder 11 to a certain height, so that the rod part of the bolt finished product 101 is exposed from the top surface of the positioning cylinder 11.
[0038] In order to achieve automatic and orderly supply of bolt blanks, the feeding device provided by the present invention includes a vibrating feeding plate and a material channel 2 connected to the outlet of the vibrating feeding plate. The vibrating feeding plate sorts and orients the messy bolt blanks and transports them to the designated position through the material channel 2.
[0039] In order for the bearing member 5 to be able to support the bolt blank 100 and the finished bolt 101, and to drive the bolt blank 100 and the finished bolt 101 to move in the horizontal and vertical directions; such as Figure 4 and 6 The bearing member 5 provided by the present invention includes a U-shaped block 50 connected to the end of the telescopic arm 4. The U-shaped block 50 is provided with a pair of guide posts 52 and a telescopic member 51. The end of the telescopic member 51 is connected to a movable arm 53 that can slide along the length direction of the guide posts 52. The end of the movable arm 53 is connected to a circular box 54 with a slot 541 on one side. The heads of the bolt blank 100 and the finished bolt 101 can be accommodated in the circular box 54, and the rod is stuck at the slot 541, thereby realizing the bearing.
[0040] In this invention, to facilitate the control of the bolt blank 100 in the horizontal and vertical directions at the stamping device 1 via the cooperation of the telescopic arm 4 and the bearing member 5 during use, such as... Figure 9 The telescopic arm 4 of the present invention includes an inner sleeve 41 and an outer sleeve 40 that cooperate with each other. The outer sleeve 40 is fixed on the base 30. A telescopic drive member 43 is installed on the inner bottom side of the outer sleeve 40. The output end of the telescopic drive member 43 is connected to a slider 44 that slides along the inner wall of the inner sleeve 41. A spring 45 is connected between the slider 44 and the inner bottom side of the inner sleeve 41. A vertical drive rod 46 is connected to the outer wall of the inner sleeve 41.
[0041] Specifically, such as Figure 1 and 3 A guide plate 37 is connected to the outer periphery of the rotating device 3, which is located between the rotating device 3 and the material channel 2, via a first connecting rod 38. The guide plate 37 has an "M"-shaped arc-shaped guide surface 371 on the side near the rotating device 3. When the rotating device 3 drives the bearing 5 to rotate and approach the end of the material channel 2, the drive rod 46 moves close to the arc-shaped guide surface 371.
[0042] Specifically, such as Figure 4-5 A guide plate 17 is connected to the outer periphery of the rotating device 3, which is located between the rotating device 3 and the stamping device 1, via a second connecting rod 16. The guide plate 17 has an "M"-shaped arc-shaped guide surface 171 on the side near the rotating device 3. When the rotating device 3 drives the bearing 5 to rotate and approach the stamping device 1, the drive rod 46 moves close to the arc-shaped guide surface 171.
[0043] During overall operation:
[0044] When the unloaded carrier 5 moves to the loading station, the drive rod 46 moves close to the arc-shaped guide surface 371. At this time, under the action of the arc-shaped guide surface 371, the telescopic arm 4 is squeezed and the telescopic arm 4 retracts until the slot 541 is aligned with the discharge end of the material channel 2. The bolt blank 100 located on the material channel 2 is released and enters the carrier 5.
[0045] The rotating device 3 is controlled to rotate, which drives the telescopic arm 4 to rotate. When the carrier 5 carrying the bolt blank 100 moves to the stamping station, the drive rod 46 moves close to the arc guide surface 171. At this time, the telescopic arm 4 is squeezed under the action of the arc guide surface 171, and the end of the carrier 5 extends into the stamping device 1. The telescopic component 51 is controlled to retract, which drives the circular box 54 to move downward. At this time, the rod part of the bolt blank 100 is inserted into the positioning cylinder 11, and the rod part of the bolt blank 100 abuts against the end face of the top rod. The telescopic arm 4 is controlled to retract under the action of the telescopic drive 43. At this time, the carrier 5 moves out of the stamping device 1. At the same time, the ejector cylinder 19 is controlled to retract. Then, under the action of gravity, the rod part of the bolt blank 100 is completely inserted into the positioning cylinder 11, and the head of the bolt blank 100 abuts against the end face of the positioning cylinder 11.
[0046] Start the stamping device 1 to stamp. After the stamping is completed and the finished internal hexagonal bolt 101 is obtained, start the ejection cylinder 19 to push the stamped internal hexagonal bolt 101 out of the positioning cylinder 11 to a certain height, so that the shank of the bolt 101 is exposed from the top surface of the positioning cylinder 11.
[0047] The telescopic arm 4 is extended under the action of the telescopic drive 43, and the end of the bearing 5 is extended into the interior of the stamping device 1. At this time, the rod of the bolt product 101 slides through the slot 541, and the telescopic component 51 is extended to drive the circular box 54 to move upward. The head of the bolt product 101 is accommodated in the circular box 54.
[0048] The control rotating device 3 rotates to drive the telescopic arm 4 to continue rotating. When the carrier 5 carrying the finished bolt 101 moves to the unloading station, the unloading device is used to perform the unloading operation. After the unloading is completed, the control rotating device 3 rotates to drive the telescopic arm 4 to continue rotating. When the unloaded carrier 5 moves to the detection station, the detection device is used to check whether the unloaded carrier 5 is really unloaded. If it is, proceed to the next step; otherwise, issue an alarm signal.
[0049] The present invention also includes a controller that connects the alarm, the telescopic arm 4, and the rotating device 3.
[0050] To facilitate the removal of the finished bolt 101 from the bearing 5, such as Figure 1-2The feeding device of the present invention includes a horizontal support plate 31 connected to the outer periphery of the rotating device 3. A side mounting plate 32 is provided on the upper surface of the horizontal support plate 31. One side of the side mounting plate 32 is connected to a push plate 35 through a telescopic push rod 33. A guide telescopic rod 34 is also connected between the push plate 35 and the side mounting plate 32. A side drive plate 36 is connected to the end of the horizontal support plate 31. The top of the side drive plate 36 has a horizontal surface. Arc-shaped guide surfaces 361 are provided at the ends of the side drive plate 36 located on both sides of the horizontal surface. When the bearing member 5 is rotated by the rotating device 3 and passes through the side drive plate 36, the bottom end face of the bolt finished product 101 abuts against the top surface of the side drive plate 36. A collection box is also provided below the feeding device.
[0051] During operation, when the carrier 5 carrying the finished bolt 101 rotates past the unloading station, the bottom end of the finished bolt will abut against the top horizontal surface of the side drive plate 36. Then, under the action of the side drive plate 36, the finished bolt 101 will be pushed upward from the carrier 5. Then, the telescopic push rod 33 will move to push the push plate 35 to push the finished bolt 101 on the horizontal support plate 31 into the collection box.
[0052] When the bolt product 101 is long or thin, the telescopic push rod 33 may not be provided. In this case, when the bolt product 101 is pushed upward from the bearing member 5 under the action of the side drive plate 36, the bolt product 101 will tilt and automatically slide through the slot 541 and fall out from the bearing member 5.
[0053] The detection device includes an infrared emitting module 61 and an infrared receiving module 62 symmetrically arranged, located on the upper and lower sides of the circular box 54 respectively. When the unloaded circular box 54 rotates between the two, the infrared beam will pass through the slot 541 area of the circular box 54. If the infrared beam is not blocked, the system determines that the unloading is completed, which means that the circular box 54 is unloaded. Conversely, if the infrared beam is blocked, the system determines that the unloading is not completed, which means that the circular box 54 contains finished bolts 101.
[0054] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0055] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. A stamping and forming equipment for internal hexagonal bolts, characterized in that: It includes a rotating device (3), the end of which is connected to a base (30), the periphery of which is connected to at least two horizontal telescopic arms (4), and the end of the telescopic arms (4) is connected to a bearing member (5). The bearing member (5) is used to support the bolt blank (100) or the finished bolt (101). A feeding station and a stamping station are provided around the rotating device (3). A feeding device and a stamping device (1) are respectively installed at the feeding station and the stamping station. The feeding device includes a vibrating feeding plate and a material channel (2) connected to the discharge port of the vibrating feeding plate. The telescopic arm (4) includes an inner sleeve (41) and an outer sleeve (40) that cooperate with each other. The outer sleeve (40) is fixed on the base (30). A telescopic drive (43) is installed on the inner bottom side of the outer sleeve (40). The output end of the telescopic drive (43) is connected to a slider (44) that slides along the inner wall of the inner sleeve (41). A spring (45) is connected between the slider (44) and the inner bottom side of the inner sleeve (41). A vertical drive rod (46) is connected to the outer wall of the inner sleeve (41).
2. The internal hexagonal bolt stamping forming equipment according to claim 1, characterized in that, A guide plate (37) is connected to the outer periphery of the rotating device (3) located between the rotating device (3) and the material channel (2) via a first connecting rod (38). The guide plate (37) has an arc-shaped guide surface (371) in the shape of an "M" on the side near the rotating device (3). When the rotating device (3) drives the bearing (5) to rotate and approach the end of the material channel (2), the driving rod (46) moves close to the arc-shaped guide surface (371).
3. The internal hexagonal bolt stamping forming equipment according to claim 2, characterized in that, The support member (5) includes a U-shaped block (50) connected to the end of the inner sleeve (41). A pair of guide posts (52) are provided inside the U-shaped block (50). A telescopic member (51) is provided on the inner wall surface of the U-shaped block (50) between the two guide posts (52). A movable arm (53) is connected to the end of the telescopic member (51). The guide posts (52) pass through the movable arm (53). The end of the movable arm (53) is connected to a circular box (54), and a slot (541) is opened on one side of the circular box (54). The opening direction of the slot (541) is the same as the length direction of the telescopic arm (4).
4. The internal hexagonal bolt stamping forming equipment according to claim 3, characterized in that, The stamping device (1) includes a base plate (10), and a positioning cylinder (11) for placing a bolt blank (100) is provided on the upper surface of the base plate (10). The top plate (13) is connected to the upper surface of the bottom plate (10) on both sides of the positioning cylinder (11) by a vertical rod (12). The top plate (13) located directly above the positioning cylinder (11) has an opening (131) through which a stamping punch passes.
5. The internal hexagonal bolt stamping forming equipment according to claim 4, characterized in that, The bottom side of the base plate (10) is connected to the mounting plate (181) via the support column (18). The mounting plate (181) is equipped with an ejector cylinder (19). The output end of the ejector cylinder (19) is connected to a push rod inserted into the positioning cylinder (11).
6. The internal hexagonal bolt stamping forming equipment according to claim 4, characterized in that, A guide plate (17) is connected to the outer periphery of the rotating device (3) located between the rotating device (3) and the stamping device (1) via a second connecting rod (16). The guide plate (17) has an arc-shaped guide surface (171) in the shape of an "M" on the side near the rotating device (3). When the rotating device (3) drives the bearing (5) to rotate and approach the position of the stamping device (1), the driving rod (46) moves close to the arc-shaped guide surface (171).
7. A stamping and forming equipment for internal hexagonal bolts according to any one of claims 1-6, characterized in that, A material unloading station and an inspection station are also provided around the rotating device (3); The loading station, stamping station, unloading station and inspection station are arranged sequentially along the periphery of the rotating device (3); The unloading station and the testing station are respectively equipped with unloading devices and testing devices.
8. The internal hexagonal bolt stamping forming equipment according to claim 7, characterized in that, The feeding device includes a horizontal support plate (31) connected to the outer periphery of the rotating device (3). A side mounting plate (32) is provided on the upper surface of the horizontal support plate (31). One side of the side mounting plate (32) is connected to a push plate (35) via a telescopic push rod (33). A guide telescopic rod (34) is also connected between the push plate (35) and the side mounting plate (32). The end of the horizontal support plate (31) is connected to a side drive plate (36). The top of the side drive plate (36) has a horizontal surface, and the ends of the side drive plate (36) located on both sides of the horizontal surface are provided with arc-shaped guide surfaces (361). When the rotating device (3) drives the bearing (5) to rotate past the side drive plate (36), the bottom end of the finished bolt (101) abuts against the top end of the side drive plate (36).
9. The internal hexagonal bolt stamping forming equipment according to claim 7, characterized in that, The detection device includes an infrared emitting module (61) and an infrared receiving module (62) arranged symmetrically, with the infrared emitting module (61) and the infrared receiving module (62) located on the upper and lower sides of the circular box (54).
10. The internal hexagonal bolt stamping forming equipment according to claim 1, characterized in that, The rotating device (3) includes a housing, a drive motor, and a support shaft. The drive motor is connected to the bottom of the support shaft via a reducer. The base (30) is fixed to the top of the support shaft. A bearing hole is opened on the top of the housing. The support shaft is installed in the inner ring of the bearing hole. The drive motor is installed inside the housing.