Hot forging punching machine for forming large-head inner hole of bolt

Abstract

The utility model relates to the technical field of bolt processing, and provides a hot forging punch press for forming an inner hole of a large head of a bolt, which comprises a rack, two lower dies, an upper die, a feeding mechanism, an opening and closing mechanism, a pressing mechanism and a conveying mechanism, the rack is provided with a sliding chute, the two lower dies are both arranged in the rack, the upper die is arranged on the rack, and the feeding mechanism is arranged in the sliding chute. The feeding mechanism is arranged on the rack and used for intermittently feeding bolts, the opening and closing mechanism is arranged on the rack and used for driving the two lower dies to be opened and closed, the pressing mechanism is arranged on the rack and used for driving the upper die to move, and the conveying mechanism is arranged on the rack and used for conveying the bolts. The problems that in the prior art, an operator needs to place bolts manually, the bolt machining efficiency is reduced, and the danger is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt processing, in particular to a hot forging punch for forming an inner hole of a large head of a bolt. Background Art

[0002] Bolts are widely used mechanical parts in vehicles, ships, railways, bridges, buildings and other fields. Bolts are basic parts of the mechanical industry and are in great demand. The large head of the bolt usually needs to be processed into an inner hole, such as a hexagonal inner hole. When processing the inner hole of the large head of the bolt, the equipment commonly used is a hot forging punch.

[0003] When the inner hole of the big head of the bolt is processed by a hot forging punch, the bolt is placed in the lower die, and the inner hole can be punched out in the big head of the bolt by the impact force of the punch. After searching, Patent Publication No. CN211331187U discloses a hot forging punch for forming the inner hole of the big head of the bolt. The position below the first bolt avoidance groove can be vacated by sliding the draw plate. When installing and removing the lengthened bolt, the distance between the first bolt avoidance groove and the lower die assembly can be used to realize the installation and removal of the lengthened bolt, which expands the bolt length applicable to the hot forging punch and expands the application range of the hot forging punch. However, it requires the operator to manually place the bolt during use. When the operator manually places the bolt, not only the efficiency of the bolt processing is reduced, but if the punch movement is accidentally started, it is easy to cause great harm to the operator, which is highly dangerous. Utility Model Content

[0004] The utility model provides a hot forging punch for forming the inner hole of a large head of a bolt, which solves the problem in the related technology that an operator needs to manually place the bolt, which not only reduces the efficiency of bolt processing but also is more dangerous.

[0005] The technical solution of the utility model is as follows: a hot forging punch for forming the inner hole of the large head of a bolt, comprising: a frame, a lower die, an upper die, a feeding mechanism, an opening and closing mechanism, a pressing mechanism and a conveying mechanism;

[0006] The frame is provided with a slide groove;

[0007] There are two lower molds, and both lower molds are arranged in the frame;

[0008] The upper mold is arranged on a frame;

[0009] The feeding mechanism is arranged on the frame and is used for intermittently feeding the bolts;

[0010] The opening and closing mechanism is arranged on the frame and is used to drive the two lower molds to open and close;

[0011] The pressing mechanism is arranged on the frame and is used to drive the upper mold to move;

[0012] The conveying mechanism is arranged on the frame and is used for conveying the bolts.

[0013] Preferably, the feeding mechanism comprises: a driving frame, a transmission frame, a pushing frame, a supporting assembly and a driving assembly;

[0014] The driving frame is rotatably arranged on the frame;

[0015] The transmission frame is rotatably arranged on the driving frame;

[0016] The pushing frame is fixedly connected to the transmission frame;

[0017] The support assembly is arranged on the frame and is used to support the transmission frame;

[0018] The driving assembly is arranged on the frame and is used for driving the driving frame to swing.

[0019] Furthermore, the support assembly includes: a slide bar, a spring and a support frame;

[0020] The transmission frame is provided with a slide groove, and the slide rod is slidably arranged between two slide grooves;

[0021] There are two springs, and the two springs are respectively arranged in two slide grooves;

[0022] The support frame is rotatably arranged on the slide bar and the frame.

[0023] Furthermore, the driving assembly includes: a power frame and a first motor;

[0024] The power frame is rotatably arranged on the frame, a slide groove is provided on the driving frame, and the power frame is rotatably and slidably arranged in the slide groove;

[0025] The first motor is arranged on the frame, and the output end of the first motor is fixedly connected to the power frame.

[0026] As a further solution of the present application, the opening and closing mechanism includes: a stabilizing frame, a support rod and a power assembly

[0027] There are two stabilizing frames, both of which are fixedly connected to the frame, and the two lower molds are respectively arranged on the two stabilizing frames;

[0028] There are two support rods, and the ends of the two support rods that are away from each other are both rotatably arranged on the frame, and the ends of the two support rods that are opposite to each other are respectively rotatably and slidably arranged on the two lower molds;

[0029] The power assembly is arranged on the frame and is used for driving the two support rods to swing.

[0030] As a further solution of the present application, the power assembly includes: a fixing frame, a slip ring and a first electric cylinder;

[0031] There are two fixing frames, and both fixing frames are fixedly connected to the frame;

[0032] There are two slip rings, and the two slip rings are slidably arranged on two support rods respectively;

[0033] There are two first electric cylinders, which are respectively arranged on two fixing frames, and the output ends of the two first electric cylinders are respectively rotatably connected to two slip rings.

[0034] On the basis of the above scheme, the pressing mechanism comprises: a pressing frame and a second electric cylinder;

[0035] The lower pressing frame is slidably arranged on the frame, and the upper mold is arranged on the lower pressing frame;

[0036] The second electric cylinder is arranged on the frame, and the output end of the second electric cylinder is fixedly connected to the lower pressing frame.

[0037] Further on the basis of the above scheme, the conveying mechanism includes: a conveying shaft, a conveying belt and a second motor;

[0038] There are multiple conveying shafts, and the multiple conveying shafts are rotatably arranged on the frame;

[0039] The conveyor belt is drivingly connected between every two adjacent conveyor shafts;

[0040] There are two second motors, both of which are arranged on the frame, and the output ends of the two second motors are fixedly connected to two of the conveying shafts respectively.

[0041] As a preferred technical solution of the present application, a slide box is fixedly connected to the lower mold, and a slider is rotatably provided at one end of the support rod.

[0042] It is further explained that two limit rods are fixedly connected to the lower pressure frame, two sliding holes are provided on the frame, and the two limit rods are slidably arranged in the two sliding holes respectively.

[0043] The working principle and beneficial effects of the utility model are:

[0044] 1. In the utility model, the feeding mechanism and the conveying mechanism are arranged to facilitate the continuous conveying and feeding of bolts instead of manpower.

[0045] 2. In the utility model, when the bolts are conveyed into the two lower molds, the opening and closing mechanism is provided to ensure the passability of the bolts.

[0046] 3. In the utility model, the setting of the pressing mechanism facilitates the rapid punching of the inner hole of the bolt head.

[0047] 4. In the utility model, through the coordination among the frame, the lower mold, the upper mold, the feeding mechanism, the opening and closing mechanism, the pressing mechanism and the conveying mechanism, it is convenient to replace manpower to continuously convey and feed the bolts, thereby improving the efficiency of bolt processing and reducing the danger of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0049] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0050] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0051] Figure 3 It is a structural schematic diagram of the opening and closing mechanism and the pressing mechanism of the utility model;

[0052] Figure 4 For this utility model Figure 1 Schematic diagram of the partially enlarged structure at point A in the middle.

[0053] In the figure: 1. frame; 2. lower mold; 3. upper mold; 4. driving frame; 5. transmission frame; 6. pushing frame; 7. sliding rod; 8. spring; 9. supporting frame; 10. power frame; 11. first motor; 12. stabilizing frame; 13. supporting rod; 14. fixing frame; 15. slip ring; 16. first electric cylinder; 17. lower pressure frame; 18. second electric cylinder; 19. conveying shaft; 20. conveyor belt; 21. second motor; 22. sliding box; 23. sliding block; 24. limiting rod. DETAILED DESCRIPTION

[0054] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0055] like Figure 1~Figure 4As shown, this embodiment proposes a hot forging punch for forming the inner hole of the large head of the bolt, including: a frame 1, a lower die 2, an upper die 3, a feeding mechanism, an opening and closing mechanism, a pressing mechanism and a conveying mechanism, a slide box 22 is fixedly connected to the lower die 2, a slider 23 is rotatably provided at one end of the support rod 13, a slide groove is provided on the frame 1, two lower dies 2 are provided, and the two lower dies 2 are both arranged in the frame 1, and the upper die 3 is arranged on the frame 1. Through the cooperation between the frame 1, the lower die 2, the upper die 3, the feeding mechanism, the opening and closing mechanism, the pressing mechanism and the conveying mechanism, it is convenient to replace manpower to continuously convey and feed the bolts, thereby improving the efficiency of bolt processing and reducing the danger of operators.

[0056] Among them, the feeding mechanism is arranged on the frame 1, which is used for intermittent feeding of bolts. The feeding mechanism includes: a driving frame 4, a transmission frame 5, a pushing frame 6, a supporting assembly and a driving assembly. The driving frame 4 is rotatably arranged on the frame 1, the transmission frame 5 is rotatably arranged on the driving frame 4, the pushing frame 6 is fixedly connected to the transmission frame 5, the supporting assembly is arranged on the frame 1, and is used to support the transmission frame 5. The driving assembly is arranged on the frame 1, and is used to drive the driving frame 4 to swing. The supporting assembly includes: a slide bar 7, a spring 8 and a supporting frame 9. A slide groove is opened on the transmission frame 5, and the slide bar 7 is slidably arranged between two slide grooves. There are two springs 8, and the two springs 8 are respectively arranged in the two slide grooves. The support frame 9 is rotatably arranged on the slide bar 7 and the frame 1, and the driving assembly includes: a power frame 10 and a first motor 11. The power frame 10 is rotatably arranged on the frame 1, and a slide groove is opened on the driving frame 4. The power frame 10 is rotatably and slidably arranged in the slide groove. The first motor 11 is arranged on the frame 1, and the output end of the first motor 11 is fixedly connected to the power frame 10. Specifically, the power frame 10 is driven to rotate in the slide groove by the first motor 11 arranged on the frame 1, thereby driving the driving frame 4 to swing. When the driving frame 4 swings, it drives the transmission frame 5 and the pushing frame 6 to move, and through the elastic force of the spring 8 and the support of the support frame 9, it drives the pushing frame 6 to push the bolts into the two lower molds 2.

[0057] Among them, the opening and closing mechanism is arranged on the frame 1, and is used to drive the two lower molds 2 to open and close. The opening and closing mechanism includes: a stabilizing frame 12, a support rod 13 and a power assembly. There are two stabilizing frames 12, and the two stabilizing frames 12 are fixedly connected to the frame 1. The two lower molds 2 are respectively arranged on the two stabilizing frames 12. There are two support rods 13. The ends of the two support rods 13 that are away from each other are rotatably arranged on the frame 1. The opposite ends of the two support rods 13 are respectively rotatably and slidably arranged on the two lower molds 2. The power assembly is arranged on the frame 1, and is used to drive the two support rods 13 to swing. The power assembly includes: a fixed frame 1 4. Slip ring 15 and first electric cylinder 16. Two fixing frames 14 are provided. Both fixing frames 14 are fixedly connected to the frame 1. Two slip rings 15 are provided. Both slip rings 15 are slidably arranged on two support rods 13 respectively. Two first electric cylinders 16 are provided. Both first electric cylinders 16 are arranged on two fixing frames 14 respectively. Output ends of the two first electric cylinders 16 are rotatably connected to the two slip rings 15 respectively. Specifically, the first electric cylinder 16 arranged on the fixing frame 14 drives the slip ring 15 and the support rod 13 to swing. When the support rod 13 swings, it drives the two lower molds 2 to open and close, thereby fixing the bolts in the two lower molds 2.

[0058] Among them, the pressing mechanism is arranged on the frame 1, which is used to drive the upper mold 3 to move. The pressing mechanism includes: a lower pressing frame 17 and a second electric cylinder 18. Two limit rods 24 are fixedly connected to the lower pressing frame 17. Two sliding holes are opened on the frame 1. The two limit rods 24 are respectively slidably arranged in the two sliding holes. The lower pressing frame 17 is slidably arranged on the frame 1, and the upper mold 3 is arranged on the lower pressing frame 17. The second electric cylinder 18 is arranged on the frame 1, and the output end of the second electric cylinder 18 is fixedly connected to the lower pressing frame 17. Specifically, the lower pressing frame 17 and the upper mold 3 are driven to press down by the second electric cylinder 18 arranged on the frame 1, so as to punch the bolt head.

[0059] Among them, the conveying mechanism is arranged on the frame 1, which is used to convey the bolts. The conveying mechanism includes: a conveying shaft 19, a conveyor belt 20 and a second motor 21. There are multiple conveying shafts 19, and the multiple conveying shafts 19 are rotatably arranged on the frame 1. The conveyor belt 20 is transmission-connected between each two adjacent conveying shafts 19. There are two second motors 21, and the two second motors 21 are arranged on the frame 1. The output ends of the two second motors 21 are respectively fixedly connected to two of the conveying shafts 19. Specifically, the conveying shaft 19 is driven to rotate by the second motor 21 arranged on the frame 1, and when the conveying shaft 19 rotates, it drives the conveyor belt 20 to convey the bolts.

[0060] In this embodiment, when processing the bolts, the bolts are placed between the two conveyor belts 20, and the conveyor shaft 19 is driven to rotate by the second motor 21 arranged on the frame 1. When the conveyor shaft 19 rotates, it drives the rubbing conveyor belt 20 to convey the bolts, and then the power frame 10 is driven to rotate in the slide groove by the first motor 11 arranged on the frame 1, thereby driving the driving frame 4 to swing, and when the driving frame 4 swings, it drives the transmission frame 5 and the pushing frame 6 to move, and through the elastic force of the spring 8 and the support of the support frame 9, the pushing frame 6 is driven to push the bolt into the two lower molds 2, and then the first electric cylinder 16 arranged on the fixed frame 14 drives the slip ring 15 and the support rod 13 to swing, and when the support rod 13 swings, it drives the two lower molds 2 to open and close, thereby fixing the bolts in the two lower molds 2, and the lower pressing frame 17 and the upper mold 3 are pressed down by the second electric cylinder 18 arranged on the frame 1, so as to punch the bolt heads.

[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hot forging punch for forming the inner hole of a large head of a bolt, characterized in that: include: A frame (1), wherein a slide groove is provided on the frame (1); A lower mold (2), wherein two lower molds (2) are provided, and both lower molds (2) are arranged in the frame (1); An upper mold (3), wherein the upper mold (3) is arranged on the frame (1); A feeding mechanism, the feeding mechanism being arranged on the frame (1) and being used for intermittently feeding the bolts; An opening and closing mechanism, the opening and closing mechanism being arranged on the frame (1) and being used for driving the two lower moulds (2) to open and close; A pressing mechanism, the pressing mechanism being arranged on the frame (1) and being used for driving the upper mold (3) to move; A conveying mechanism, wherein the conveying mechanism is arranged on the frame (1) and is used for conveying the bolts.

2. A hot forging punch for forming the inner hole of the large head of a bolt according to claim 1, characterized in that: The feeding mechanism comprises: A driving frame (4), the driving frame (4) being rotatably disposed on the frame (1); A transmission frame (5), the transmission frame (5) being rotatably disposed on the driving frame (4); A pushing frame (6), wherein the pushing frame (6) is fixedly connected to the transmission frame (5); A support assembly, the support assembly being arranged on the frame (1) and being used to support the transmission frame (5); A driving assembly, wherein the driving assembly is arranged on the frame (1) and is used to drive the driving frame (4) to swing.

3. A hot forging punch for forming the inner hole of the large head of a bolt according to claim 2, characterized in that: The support assembly comprises: A slide rod (7), wherein a slide groove is provided on the transmission frame (5), and the slide rod (7) is slidably arranged between two of the slide grooves; A spring (8), wherein two springs (8) are provided, and the two springs (8) are respectively arranged in the two slide grooves; A support frame (9), wherein the support frame (9) is rotatably disposed on the slide bar (7) and the frame (1).

4. A hot forging punch for forming the inner hole of the large head of a bolt according to claim 3, characterized in that: The drive assembly comprises: A power frame (10), the power frame (10) being rotatably disposed on the frame (1), a slide groove being provided on the driving frame (4), and the power frame (10) being rotatably and slidably disposed in the slide groove; A first motor (11), wherein the first motor (11) is arranged on the frame (1), and an output end of the first motor (11) is fixedly connected to the power frame (10).

5. A hot forging punch for forming the inner hole of the large head of a bolt according to claim 4, characterized in that: The opening and closing mechanism comprises: A stabilizing frame (12), wherein two stabilizing frames (12) are provided, and the two stabilizing frames (12) are both fixedly connected to the frame (1), and the two lower molds (2) are respectively arranged on the two stabilizing frames (12); Support rods (13), two support rods (13) are provided, and ends of the two support rods (13) that are away from each other are both rotatably arranged on the frame (1), and opposite ends of the two support rods (13) are respectively rotatably and slidably arranged on the two lower molds (2); A power assembly, the power assembly being arranged on the frame (1) and being used for driving the two support rods (13) to swing.

6. A hot forging punch for forming the inner hole of the large head of a bolt according to claim 5, characterized in that: The power assembly comprises: A fixing frame (14), wherein two fixing frames (14) are provided, and both fixing frames (14) are fixedly connected to the frame (1); A slip ring (15), wherein two slip rings (15) are provided, and the two slip rings (15) are slidably disposed on the two support rods (13) respectively; A first electric cylinder (16), wherein two first electric cylinders (16) are provided, and the two first electric cylinders (16) are respectively arranged on the two fixing frames (14), and the output ends of the two first electric cylinders (16) are respectively rotatably connected to the two slip rings (15).

7. A hot forging punch for forming the inner hole of the large head of a bolt according to claim 6, characterized in that: The pressing mechanism comprises: A lower pressing frame (17), wherein the lower pressing frame (17) is slidably arranged on the frame (1), and the upper mold (3) is arranged on the lower pressing frame (17); A second electric cylinder (18), wherein the second electric cylinder (18) is arranged on the frame (1), and an output end of the second electric cylinder (18) is fixedly connected to the lower pressing frame (17).

8. A hot forging punch for forming the inner hole of the large head of a bolt according to claim 7, characterized in that: The conveying mechanism comprises: A conveying shaft (19), wherein a plurality of the conveying shafts (19) are provided, and the plurality of conveying shafts (19) are all rotatably disposed on the frame (1); A conveyor belt (20), the conveyor belt (20) being drivingly connected between each two adjacent conveyor shafts (19); A second motor (21), wherein two second motors (21) are provided, and both second motors (21) are arranged on the frame (1), and output ends of the two second motors (21) are respectively fixedly connected to two of the conveying shafts (19).

9. A hot forging punch for forming the inner hole of the large head of a bolt according to claim 7, characterized in that: A slide box (22) is fixedly connected to the lower mold (2), and a slider (23) is rotatably provided at one end of the support rod (13), and the slider (23) is slidably provided in the slide box (22).

10. A hot forging punch for forming the inner hole of the large head of a bolt according to claim 7, characterized in that: Two limit rods (24) are fixedly connected to the lower pressure frame (17), and two sliding holes are provided on the frame (1), and the two limit rods (24) are slidably disposed in the two sliding holes respectively.

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