Warm forging forming device applied to high-strength bolt of high-speed rail braking system

Abstract

The utility model discloses a warm forging forming device for high strength bolt of high -speed railway brake system is applied to, relates to forging technical field, the utility model discloses a frame for supporting integral device, the frame outer wall is fixedly connected with first limit block, still include forming stripping assembly, set up in the inside of frame, and the metal of heating is completed and is formed stripping, auxiliary assembly, set up in the inside of frame, be used for the auxiliary forming stripping assembly, lubricating assembly, set up on the frame, be used for preventing the deformation of the metal piece after forming in the stripping process, the utility model discloses the metal piece after heating is extruded into the lower mould in upper mould, makes the metal piece form, when the upper mould rises, will drive stripping axle and move upwards to the metal piece after forming fast separates from the lower mould in, and in the process of the upper mould descending and rising, will through fixed column and continuously extrude second fixed block, make knock block continuously knock lower mould.

Description

Technical Field

[0001] This utility model belongs to the field of forging technology, and in particular relates to a warm forging forming device for high-strength bolts used in high-speed rail braking systems. Background Technology

[0002] To ensure that the bolts have sufficient strength, toughness and durability, the manufacturing process of high-strength bolts adopts warm forging technology. In the warm forging process, the metal material is heated at high temperature and pressure is applied to form it. Then it needs to be cooled and solidified. During this process, the formed bolt needs to be quickly removed from the mold to facilitate the next round of production. At the same time, it can reduce the contact time between the mold and the hot metal, reduce the impact of high temperature on the mold, thereby extending the service life of the mold and reducing maintenance and replacement costs.

[0003] Chinese patent CN207547524U discloses a hot forging device for gear blanks. The device uses a hydraulic press to push a forging disc with a gear hub forming groove to strike the red-hot gear blank for decarburization and shaping. The hot forging of the gear blank is completed by repeated heating and impact.

[0004] As shown above, after the material is formed, the device lacks a quick demolding function, so the formed gear blank will be in contact with the mold surface for a long time. This not only leads to a reduction in production efficiency, but also increases the wear and tear of the mold. Prolonged contact may cause the mold surface temperature to be too high, further accelerating the fatigue and cracking of the mold material and shortening the service life of the mold. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a warm forging forming device for high-strength bolts used in high-speed rail braking systems, which solves the problem of prolonged contact between the material and the mold surface after forming.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a warm forging forming device for high-strength bolts in high-speed rail braking systems, comprising a frame for supporting the overall device, wherein a first limiting block is fixedly connected to the outer wall of the frame, and further comprising;

[0007] The forming and demolding assembly is located inside the frame and is used to form and demold the heated metal.

[0008] Auxiliary components, located inside the frame, are used to assist in the molding and demolding of the components;

[0009] A lubrication assembly, mounted on the frame, is used to prevent deformation of the molded metal parts during the demolding process.

[0010] Preferably, the molding and demolding assembly includes a hydraulic device fixedly connected to the outer wall of the frame, and a hydraulic rod fixedly connected to the output end of the hydraulic device, the hydraulic rod being slidably connected to the inner wall of the frame;

[0011] The upper mold is fixedly connected to the side of the hydraulic rod away from the hydraulic device. The bottom of the upper mold is fixedly connected to the first connecting rod. The outer wall of the first connecting rod is slidably connected to the inner wall of the frame. The lower mold is fixedly connected to the outer wall of the frame. A mold groove is provided inside the lower mold.

[0012] Preferably, a demolding shaft is fixedly connected to the outer wall of the first connecting rod for demolding the formed metal part. The demolding shaft is located inside the lower mold, and a limiting block is fixedly connected to the top of the demolding shaft to prevent the demolding shaft from disengaging from the lower mold.

[0013] Preferably, the auxiliary component includes a fixed post fixedly connected to the outer wall of the first connecting rod, the fixed post having a plurality of protrusions, and two fixed posts in total, the outer wall of the fixed post contacting a second fixed block for being pushed to a position by the protrusions on the fixed post;

[0014] The outer wall of the second fixing block is fixedly connected with a telescopic rod. There are two telescopic rods in total. The side of the telescopic rod away from the second fixing block is fixedly connected to a first fixing block. The side of the first fixing block close to the telescopic rod is fixedly connected to a spring for springback operation of the second fixing block. The telescopic rod is located inside the spring.

[0015] A striking block is fixedly connected to the outer wall of the second fixed block. The outer wall of the striking block contacts the outer wall of the lower mold. A second limiting block is fixedly connected to the bottom of the striking block to limit the movement of the striking block. The outer wall of the second limiting block is slidably connected to the inner wall of the frame.

[0016] Preferably, the lubrication assembly includes a lubricant tank fixedly connected to the outer wall of the frame, a limiting post fixedly connected to the inner wall of the frame, a sliding block slidably connected to the inner wall of the limiting post, a first fixed shaft fixedly connected to the outer wall of the sliding block, and a small water pump fixedly connected to the outer wall of the first fixed shaft.

[0017] The small water pump has an output pipe fixedly connected to its outer wall for spraying lubricant into the mold groove inside the mold. An output hose is fixedly connected to the side of the output pipe closest to the small water pump, and the side of the output hose furthest from the small water pump is fixedly connected to the inner wall of the lubricant tank.

[0018] Preferably, a second connecting rod is rotatably connected to the outer wall of the first fixed shaft for moving the position of the output pipe. The end of the second connecting rod away from the first fixed shaft is rotatably connected to the second fixed shaft, and the outer wall of the second fixed shaft is fixedly connected to the inner wall of the first connecting rod.

[0019] This utility model has the following beneficial effects:

[0020] 1. This warm forging forming device for high-strength bolts in high-speed rail braking systems uses an upper die to press heated metal parts into a lower die, forming the metal parts. When the upper die rises, it drives the demolding axis to move upward, allowing the formed metal parts to quickly detach from the lower die. During the descent and ascent of the upper die, the fixed column continuously presses against the second fixed block, causing the striking block to continuously strike the lower die. This reduces the friction between the bolt and the die, making the contact between the bolt and the die less tight and reducing the possibility of damage.

[0021] 2. This warm forging forming device for high-strength bolts in high-speed rail braking systems uses a small water pump to spray lubricant from the lubricant tank into the mold groove of the lower mold after the bolt is formed and removed. This reduces the friction during the demolding process of the next bolt, reduces the risk of thread damage during demolding, and also helps to distribute heat evenly, reduce heat concentration, prevent the mold from overheating, thereby reducing the risk of thermal fatigue and damage to the mold.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the upper mold structure of this utility model;

[0026] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0027] Figure 4 This is a schematic diagram of the second fixing block structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the demolding shaft structure of this utility model.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Frame; 101. First limiting block; 2. Hydraulic unit; 201. Hydraulic rod; 202. Upper mold; 203. First connecting rod; 204. Lower mold; 205. Demolding shaft; 206. Limiting round block; 3. Fixed column; 301. First fixing block; 302. Telescopic rod; 303. Second fixing block; 304. Spring; 305. Striking block; 306. Second limiting block; 4. Lubricant tank; 401. Limiting column; 402. Sliding block; 403. First fixing shaft; 404. Small water pump; 405. Output pipe; 406. Output hose; 407. Second connecting rod; 408. Second fixing shaft. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model provides two technical solutions:

[0033] Figures 1-2 , Figures 4-5 The first embodiment is shown: a warm forging forming device for high-strength bolts in high-speed rail braking systems, including a frame 1 for supporting the overall device, a first limiting block 101 fixedly connected to the outer wall of the frame 1, and further including;

[0034] The forming and demolding assembly is located inside the frame 1 and is used to form and demold the heated metal.

[0035] An auxiliary component, located inside frame 1, is used to assist in the molding and demolding of the component.

[0036] A lubrication component, mounted on frame 1, is used to prevent deformation of the molded metal part during the demolding process.

[0037] The molding and demolding assembly includes a hydraulic device 2 fixedly connected to the outer wall of the frame 1, and a hydraulic rod 201 fixedly connected to the output end of the hydraulic device 2. The hydraulic rod 201 is slidably connected to the inner wall of the frame 1.

[0038] The upper mold 202 is fixedly connected to the side of the hydraulic rod 201 away from the hydraulic device 2. The bottom of the upper mold 202 is fixedly connected to the first connecting rod 203. The outer wall of the first connecting rod 203 is slidably connected to the inner wall of the frame 1. The lower mold 204 is fixedly connected to the outer wall of the frame 1. The lower mold 204 has a mold groove inside.

[0039] The outer wall of the first connecting rod 203 is fixedly connected to a demolding shaft 205, which is used to demold the formed metal part. The demolding shaft 205 is located inside the lower mold 204. A limit block 206 is fixedly connected to the top of the demolding shaft 205 to prevent the demolding shaft 205 from leaving the lower mold 204.

[0040] The auxiliary component includes a fixed post 3 fixedly connected to the outer wall of the first link 203. The fixed post 3 is provided with a number of protrusions. There are two fixed posts 3 in total. The outer wall of the fixed post 3 contacts the second fixed block 303, which is used to be pushed to a position by the protrusions on the fixed post 3.

[0041] The outer wall of the second fixing block 303 is fixedly connected to a telescopic rod 302. There are two telescopic rods 302. The side of the telescopic rod 302 away from the second fixing block 303 is fixedly connected to a first fixing block 301. The side of the first fixing block 301 close to the telescopic rod 302 is fixedly connected to a spring 304, which is used to perform a spring-back operation on the second fixing block 303. The telescopic rod 302 is located inside the spring 304.

[0042] A striking block 305 is fixedly connected to the outer wall of the second fixed block 303. The outer wall of the striking block 305 contacts the outer wall of the lower mold 204. A second limiting block 306 is fixedly connected to the bottom of the striking block 305 to limit the movement of the striking block 305. The outer wall of the second limiting block 306 is slidably connected to the inner wall of the frame 1.

[0043] First, the worker places the heated metal part above the lower mold 204. Then, the hydraulic pump 2 is activated by the external controller, causing the upper mold 202 to move downward and squeeze the metal part into the lower mold 204. During this process, the lower mold 204 continues to move downward, driving the first connecting rod 203 to move downward, thereby causing the demolding shaft 205 to move downward. This causes the limiting block 206 to be located at the bottom of the mold groove inside the lower mold 204. After the forming is completed, the upper mold 202 moves upward, driving the first connecting rod 203 to move, thereby causing the demolding shaft 205 to move upward and push out the formed bolt, completing the demolding.

[0044] During the downward and upward movement of the upper mold 202, the fixed column 3 will continuously move up and down. During the movement, the fixed column 3 will intermittently collide and squeeze the second fixed block 303, thereby driving the second fixed block 303 to move and squeezing the spring 304. When the second fixed block 303 moves, it will drive the striking block 305 to collide with the lower mold 204, which helps to reduce the friction between the bolt and the lower mold 204. When the fixed column 3 disengages from the second fixed block 303, the spring 304 will push the second fixed block 303 to move due to its own reaction force, driving the striking block 305 away from the lower mold 204.

[0045] Figure 3 The second embodiment is shown. The main difference between this embodiment and the first embodiment of the warm forging forming device for high-strength bolts applied to high-speed rail braking system is that the lubrication assembly includes a lubricant tank 4 fixedly connected to the outer wall of the frame 1, a limit post 401 fixedly connected to the inner wall of the frame 1, a sliding block 402 slidably connected to the inner wall of the limit post 401, a first fixed shaft 403 fixedly connected to the outer wall of the sliding block 402, and a small water pump 404 fixedly connected to the outer wall of the first fixed shaft 403.

[0046] A small water pump 404 has an output pipe 405 fixedly connected to its outer wall for spraying lubricant into the mold groove of the mold 204. An output hose 406 is fixedly connected to the side of the output pipe 405 near the small water pump 404. The side of the output hose 406 away from the small water pump 404 is fixedly connected to the inner wall of the lubricant tank 4.

[0047] The outer wall of the first fixed shaft 403 is rotatably connected to the second connecting rod 407, which is used to push the position of the output pipe 405 to move. The end of the second connecting rod 407 away from the first fixed shaft 403 is rotatably connected to the second fixed shaft 408. The outer wall of the second fixed shaft 408 is fixedly connected to the inner wall of the first connecting rod 203.

[0048] As the first connecting rod 203 descends, the second fixed shaft 408 will also descend. During the descent, the second fixed shaft 408 will continuously push the second connecting rod 407, causing the first fixed shaft 403 to move. As the first fixed shaft 403 moves, the sliding block 402 will move within the limiting post 401, thereby moving the small water pump 404 and the output pipe 405 away from the lower mold 204 and preventing them from obstructing the molding process.

[0049] After molding is completed, the first connecting rod 203 rises, and the second fixed shaft 408 also rises, which in turn drives the second connecting rod 407 to move. The movement of the second connecting rod 407 will cause the sliding block 402 to slide in the limiting post 401, thereby causing the small water pump 404 and the output pipe 405 to move, so that the output pipe 405 is located above the lower mold 204. At this time, the small water pump 404 is controlled by an external controller to draw lubricant from the lubricant tank 4 through the output hose 406 and spray it into the mold groove in the lower mold 204 through the output pipe 405.

[0050] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical component are not specifically limited; conventional equipment can be used.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A warm forging forming device for high-strength bolts used in high-speed rail braking systems, comprising a frame (1) for supporting the overall device, wherein a first limiting block (101) is fixedly connected to the outer wall of the frame (1), characterized in that, Also includes; The molding and demolding assembly is located inside the frame (1) and is used to mold and demold the heated metal. An auxiliary component is located inside the frame (1) and is used to assist in the molding and demolding of the component. A lubrication component, mounted on the frame (1), is used to prevent the molded metal parts from deforming during the demolding process.

2. The warm forging forming device for high-strength bolts applied to high-speed rail braking systems according to claim 1, characterized in that, The molding and demolding assembly includes a hydraulic device (2) fixedly connected to the outer wall of the frame (1), and a hydraulic rod (201) fixedly connected to the output end of the hydraulic device (2), and the hydraulic rod (201) is slidably connected to the inner wall of the frame (1). The upper mold (202) is fixedly connected to the side of the hydraulic rod (201) away from the hydraulic device (2). The bottom of the upper mold (202) is fixedly connected to the first connecting rod (203). The outer wall of the first connecting rod (203) is slidably connected to the inner wall of the frame (1). The lower mold (204) is fixedly connected to the outer wall of the frame (1). The lower mold (204) has a mold groove inside.

3. The warm forging forming device for high-strength bolts applied to high-speed rail braking systems according to claim 2, characterized in that, The outer wall of the first connecting rod (203) is fixedly connected to a demolding shaft (205) for demolding the formed metal part. The demolding shaft (205) is located inside the lower mold (204). A limiting block (206) is fixedly connected to the top of the demolding shaft (205) to prevent the demolding shaft (205) from leaving the lower mold (204).

4. The warm forging forming device for high-strength bolts applied to high-speed rail braking systems according to claim 1, characterized in that, The auxiliary component includes a fixed post (3) fixedly connected to the outer wall of the first connecting rod (203). The fixed post (3) is provided with a plurality of protrusions. There are two fixed posts (3). The outer wall of the fixed post (3) contacts a second fixed block (303) for being pushed to a position by the protrusions on the fixed post (3). The second fixing block (303) is fixedly connected to the outer wall of a telescopic rod (302). There are two telescopic rods (302). The side of the telescopic rod (302) away from the second fixing block (303) is fixedly connected to a first fixing block (301). The side of the first fixing block (301) close to the telescopic rod (302) is fixedly connected to a spring (304) for rebounding the second fixing block (303). The telescopic rod (302) is located inside the spring (304). The outer wall of the second fixing block (303) is fixedly connected to a striking block (305), the outer wall of the striking block (305) is in contact with the outer wall of the lower mold (204), and the bottom of the striking block (305) is fixedly connected to a second limiting block (306) for limiting the position of the striking block (305). The outer wall of the second limiting block (306) is slidably connected to the inner wall of the frame (1).

5. The warm forging forming device for high-strength bolts applied to high-speed rail braking systems according to claim 1, characterized in that, The lubrication assembly includes a lubricant tank (4) fixedly connected to the outer wall of the frame (1), a limiting post (401) fixedly connected to the inner wall of the frame (1), a sliding block (402) slidably connected to the inner wall of the limiting post (401), a first fixed shaft (403) fixedly connected to the outer wall of the sliding block (402), and a small water pump (404) fixedly connected to the outer wall of the first fixed shaft (403). The small water pump (404) is fixedly connected to an output pipe (405) for spraying lubricant into the mold groove inside the mold (204). The small water pump (404) is fixedly connected to an output hose (406) on its outer wall. The side of the output hose (406) away from the small water pump (404) is fixedly connected to the inner wall of the lubricant tank (4).

6. The warm forging forming device for high-strength bolts applied to high-speed rail braking systems according to claim 5, characterized in that, The outer wall of the first fixed shaft (403) is rotatably connected to a second connecting rod (407) for pushing the position of the output pipe (405) to move. The end of the second connecting rod (407) away from the first fixed shaft (403) is rotatably connected to a second fixed shaft (408). The outer wall of the second fixed shaft (408) is fixedly connected to the inner wall of the first connecting rod (203).

Images