Forging and stamping die for automobile transmission shaft

Abstract

The utility model provides an automobile transmission shaft forging stamping die which comprises a base, an air bag device and a cleaning assembly, a lower die and a guide shaft are fixed to the base, and the guide shaft penetrates through an upper die and is in sliding connection with the upper die. The cleaning assembly comprises a brush plate, a control assembly and an acceleration gear, the control assembly and the acceleration gear are both rotatably arranged on the lower mold, the brush plate is slidably connected with the lower mold, bristles acting on the lower mold are arranged on the side, close to the lower mold, of the brush plate, the upper mold is fixedly connected with a first rack, and the brush plate is fixedly connected with a second rack. The control assembly comprises a driving gear and an incomplete gear, the driving gear is rotationally connected with the incomplete gear through a connecting shaft, a pawl is fixedly connected into the incomplete gear and rotationally connected with the connecting shaft, and a pawl spring is fixed between the pawl and the connecting shaft. The first rack, the control assembly, the acceleration gear and the second rack are sequentially in transmission engagement. The sweeping assembly achieves automatic sweeping through gear transmission, and labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the field of stamping dies, and particularly to a forging stamping die for an automobile drive shaft. Background Art

[0002] A stamping die is the core tool for cold stamping processing. It uses a press to apply huge pressure at room temperature to plastically deform or separate materials such as metal sheet materials, so as to efficiently produce parts with complex shapes and precise dimensions. This processing method is widely used in industries such as automobiles, electronics, and household appliances.

[0003] During the production process, the pollution problems generated during the stamping process cannot be ignored. Metal stamping will generate a large amount of metal debris and dust, and these pollutants are very easy to enter the die cavity and adhere to the die surface or the product. Once the die is contaminated, it will directly affect the product quality, resulting in problems such as scratches, burrs, and inaccurate dimensions on the product surface, and may even cause die damage and shorten the service life of the die. The cleaning of the stamping die is an important link to ensure the production quality and extend the die life. Although brushing is a commonly used cleaning method, relying solely on brushing cannot completely remove the dirt inside the die. Since there are often many deep holes, narrow gaps and other areas with complex structures inside the stamping die, it is very difficult for the brush to penetrate into them and cannot completely remove the metal chips and dust hidden in these parts. Therefore, during the stamping production process, effective cleaning and dust removal measures must be taken to keep the die clean and ensure the product quality. Summary of the Utility Model

[0004] To overcome the problem of poor die cleaning effect in the prior art, the utility model provides a forging stamping die for an automobile drive shaft. By setting an airbag device and a cleaning component, the cleaning component is driven by the power of the upper die to clean the lower die, and at the same time, the airbag device can generate a suction airflow to absorb the dust raised during cleaning, further improving the cleaning effect.

[0005] The utility model adopts the following technical solutions.

[0006] A forging stamping die for an automobile drive shaft, comprising a base, wherein the base is fixed with a lower die and a guide shaft, the guide shaft penetrates through the upper die and is slidably connected with the upper die; it further comprises an airbag device and a cleaning component;

[0007] The cleaning assembly includes a brush plate, a control assembly, and an acceleration gear. The control assembly and the acceleration gear are rotatably arranged on the lower mold. The brush plate is slidably connected to the lower mold, and bristles acting on the lower mold are provided on one side close to the lower mold. The upper mold is fixedly connected with a first rack, and the brush plate is fixedly connected with a second rack. One end of the second rack is sleeved with a return spring. The control assembly includes a driving gear and an incomplete gear. The driving gear is rotationally connected to the incomplete gear through a connecting shaft.

[0008] An arrester is fixedly connected inside the incomplete gear. The arrester is rotatably connected to the connecting shaft, and an arrester spring is fixed between the arrester and the connecting shaft.

[0009] The first rack, the control assembly, the acceleration gear, and the second rack are sequentially in transmission engagement.

[0010] Preferably, the airbag device includes an airbag assembly and a blowing and suction chip removal assembly. The airbag assembly is arranged on the side of the base. The airbag assembly includes an airbag, a movable plate fixedly connected to the upper end surface of the airbag, and a return column slidably connected to the movable plate. The return column is sleeved with a first spring, and the movable plate is fixedly connected to the upper mold.

[0011] Preferably, the airbag is communicated with a first air duct and a second air duct. An exhaust air flow is formed in the second air duct during the compression process of the airbag, and a suction air flow is formed in the first air duct during the deformation recovery process of the airbag.

[0012] Preferably, the first air duct is connected with a first check valve. The first check valve is used to close the first air duct during the compression process of the airbag and open the first air duct during the deformation recovery process of the airbag.

[0013] The second air duct is connected with a second check valve. The second check valve is used to open the second air duct during the compression process of the airbag and close the second air duct during the deformation recovery process of the airbag.

[0014] Preferably, the blowing and suction chip removal assembly includes a dust suction chamber and a blowing chamber arranged on the side wall of the lower mold. The dust suction chamber is communicated with the first air duct, the blowing chamber is communicated with the second air duct, a net is arranged at the inlet of the dust suction chamber, and a filter cotton is arranged in the dust suction chamber.

[0015] Preferably, a collection groove is formed on the base. A collection box is arranged inside the collection groove. The collection box can be moved out of the collection groove along one side of the base, and a positioning assembly for preventing the collection box from moving out of the collection groove is arranged on the outer side wall of the base.

[0016] Preferably, the positioning component includes a fixed seat and a positioning block. The fixed seat is fixedly arranged on the base. An installation groove is formed on one side of the fixed seat close to the collection box. The positioning block is slidably matched with the installation groove. A second spring for driving the positioning block to slide out of the installation groove is arranged inside the installation groove. The positioning block is also connected with a pull ring, and the pull ring passes through the fixed seat. The positioning block is provided with a slope.

[0017] The beneficial effects of the present utility model are as follows:

[0018] A forging and stamping die for an automobile drive shaft provided by the present utility model is provided with a cleaning component. The cleaning component realizes automatic cleaning through gear transmission, without manual intervention, reducing labor intensity. The cleaning component works synchronously with the stamping process to ensure that the die is in a clean state before each stamping. At the same time, the airbag device can effectively improve the cleaning effect of the cleaning component, reduce the pollution of the product surface by debris, improve the surface quality of the product, and reduce the rework rate. By regularly cleaning the debris on the die, the possibility of die blockage is reduced, the downtime is reduced, the production efficiency is improved, and moreover, the wear of the die by metal debris is reduced, the service life of the die is prolonged, and the production cost is reduced. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0021] Figure 2 It is a side view of an embodiment of the present utility model;

[0022] Figure 3 It is a structural schematic diagram of the cleaning component in an embodiment of the present utility model;

[0023] Figure 4 It is a cross-sectional view of the incomplete gear in an embodiment of the present utility model;

[0024] Figure 5 It is a cross-sectional view of the airbag component in an embodiment of the present utility model;

[0025] Figure 6 It is a cross-sectional view of the blowing and sucking chip removal component in an embodiment of the present utility model;

[0026] Figure 7 It is a cross-sectional view of the base in an embodiment of the present utility model;

[0027] Figure 8 is Figure 7 an enlarged view of part A.

[0028] Description of reference numerals in the drawings:

[0029] 1. Base; 11. Lower die; 12. Guide shaft; 13. Upper die; 131. First rack; 14. Collection groove; 141. Collection box; 15. Positioning component; 151. Fixed seat; 152. Positioning block; 153. Second spring; 154. Pull ring; 21. Brush plate; 211. Second rack; 22. Control component; 221. Driving gear; 2211. Connecting shaft; 222. Incomplete gear; 2221. Pawl; 2222. Pawl spring; 23. Accelerating gear; 24. Brush bristles; 25. Reset spring; 3. Airbag component; 31. Airbag; 311. First air duct; 3111. First check valve; 312. Second air duct; 3121. Second check valve; 32. Movable plate; 33. Reset post; 331. First spring; 4. Blowing and suction chip removal component; 41. Dust suction chamber; 42. Screen; 43. Filter cotton; 44. Blowing chamber. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application. In addition, it should be understood that the specific implementation manners described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the orientation words such as "upper", "lower", "left", and "right" usually refer to the upper, lower, left, and right in the actual use or working mode of the device, specifically the drawing direction in the drawings. The drawings are only for illustrative purposes and cannot be understood as a limitation of this patent; for better illustrating this embodiment, some components in the drawings will be omitted, enlarged, or reduced, and do not represent the actual size of the product.

[0031] For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The drawings are only for illustrative purposes and cannot be understood as a limitation of this patent.

[0032] As shown in the attached Figures 1-8A forging and stamping die for an automobile drive shaft is shown, which includes a base 1. The base 1 is fixed with a lower die 11 and a guide shaft 12. The guide shaft 12 penetrates through the upper die 13 and is slidably connected to the upper die 13. It also includes an airbag device and a cleaning component. By setting the cleaning component, it can automatically clean the surface of the lower die 11 during the working process of the die, reduce the accumulation of impurities and waste materials, and thus improve the cleanliness and working efficiency of the die.

[0033] The cleaning component includes a brush plate 21, a control component 22 and an accelerating gear 23. The control component 22 and the accelerating gear 23 are rotatably arranged on the side wall of the lower die 11. The brush plate 21 is slidably connected to the lower die 11, and bristles 24 acting on the lower die 11 are arranged on the side close to the lower die 11. The upper die 13 is fixedly connected with a first rack 131, and the brush plate 21 is fixedly connected with a second rack 211. The control component 22 includes a driving gear 221 and an incomplete gear 222. The driving gear 221 is rotationally connected to the incomplete gear 222 through a connecting shaft 2211. A pawl 2221 is also arranged inside the incomplete gear 222. The pawl 2221 is swingably arranged on the connecting shaft 2211. A pawl spring 2222 is fixed between the pawl 2221 and the connecting shaft 2211. The inner side wall of the incomplete gear 222 is set in a shape that is mutually engaged with the pawl 2221. The first rack 131, the control component 22, the accelerating gear 23 and the second rack 211 are sequentially in transmission engagement.

[0034] When the workpiece is stamped, first, the upper die 13 moves in the direction close to the lower die 11 under the action of pressure. At the same time, the first rack 131 first moves downward under the action of the upper die 13. The downward movement of the first rack 131 causes the driving gear 221 to rotate counterclockwise for one circle. While the driving gear 221 rotates for one circle, it drives the connecting shaft 2211 to rotate for one circle. At this time, under the elastic force of the pawl spring 2222, the pawl 2221 is engaged with the inner wall of the incomplete gear 222, so that the incomplete gear 222 rotates for one circle. At this time, the incomplete gear 222 and the accelerating gear 23 are in an engaged state and the accelerating gear 23 is engaged with the second rack 211, so that the second rack 211 moves from left to right and compresses the return spring 25. It is worth mentioning that the rotational resistance of the incomplete gear 222 is greater than the maximum elastic force of the return spring 25.

[0035] When the stamping is completed and the upper die 13 moves in the direction away from the lower die 11, the first rack 131 moves upward, and the driving gear 221 rotates clockwise. Due to the change in the rotation direction, the pawl 2221 will not be engaged with the inner wall of the incomplete gear 222, so it will not affect the incomplete gear 2222.

[0036] When the incomplete part of the incomplete gear 222 rotates to the corresponding position of the acceleration gear 23, the incomplete gear 222 disengages from the acceleration gear 23, and the acceleration gear 23 can rotate freely. Under the elastic force of the return spring 25, the second rack 211 moves from right to left. By repeating the above process, the lower die 11 is cleaned twice during one downward movement of the upper die 13.

[0037] In some embodiments, the airbag device includes an airbag assembly 3 and a blowing and suction chip removal assembly 4. The airbag assembly 3 is arranged on the side of the base 1. The airbag assembly 3 includes an airbag 31, a movable plate 32 fixedly connected to the upper end surface of the airbag 31, and a return column 33 slidably connected to the movable plate 32. A first spring 331 is sleeved on the return column 33; the movable plate 32 is fixedly connected to the upper die 13. During the downward pressing of the upper die 13, the airbag 31 is compressed, and then the airbag 31 recovers under the elastic action of the first spring 331. The airflow generated during the compression and recovery of the airbag 31 acts on the blowing and suction chip removal assembly 4.

[0038] In some embodiments, the airbag 31 is communicated with a first air duct 311 and a second air duct 312; when the airbag 31 recovers, a vacuum environment is generated inside, causing the first air duct 311 to form a suction airflow, and an exhaust airflow is formed in the second air duct 312 during the compression of the airbag 31.

[0039] In some embodiments, the first air duct 311 is connected to a first check valve 3111, and the first check valve 3111 is used to close the first air duct 311 during the compression of the airbag 31 and open the first air duct 311 during the deformation recovery of the airbag 31.

[0040] The second air duct 312 is connected to a second check valve 3121, and the second check valve 3121 is used to open the second air duct 312 during the compression of the airbag 31 and close the second air duct 3121 during the deformation recovery of the airbag 31. The setting of the check valve ensures the one-way flow of the airflow, prevents the airflow from flowing back, and improves the stability and working efficiency of the system.

[0041] In some embodiments, the blowing and suction chip removal assembly 4 includes a dust suction chamber 41 and a blowing chamber 44 arranged on the side wall of the lower die 11. The dust suction chamber 41 is communicated with the first air duct 311, and the blowing chamber 44 is communicated with the second air duct 312. A retaining net 42 is arranged at the inlet of the dust suction chamber 41, and a filter cotton 43 is arranged inside the dust suction chamber 41. The retaining net 42 is arranged at the inlet of the dust suction chamber 41 to block larger impurities and prevent them from entering the inside of the dust suction chamber 41. The filter cotton 43 is arranged inside the dust suction chamber 41 to filter fine impurities and avoid sucking them into the airbag assembly 3. The blowing and suction chip removal assembly 4 can blow and suck chips from the lower die 11, which not only improves the chip removal effect but also has an effect of collecting chips.

[0042] In some embodiments, a collection groove 14 is formed in the base 1. A collection box 141 is arranged inside the collection groove 14. The collection box 141 can be moved out of the collection groove 14 along one side of the base 1. A positioning component 15 for preventing the collection box 141 from moving out of the collection groove 14 is arranged on the outer side wall of the base 1. The design of the collection groove 14 and the collection box 141 enables the waste and impurities generated during the working process of the mold to be centrally collected. The debris swept out by the cleaning component falls into the collection box 141 through the collection groove 14, facilitating cleaning and treatment. The positioning component 15 prevents the collection box 141 from falling off due to the vibration generated during the working process.

[0043] In some embodiments, the positioning component 15 includes a fixed seat 151 and a positioning block 152. An installation groove is formed on one side of the fixed seat 151 close to the collection box 141. The positioning block 152 is slidably matched with the installation groove. A second spring 153 for driving the positioning block 152 to slide out of the installation groove is arranged inside the installation groove. The positioning block 152 is further connected with a pull ring 154. The pull ring 154 passes through the fixed seat 151. The positioning block 152 is provided with a slope. When it is necessary to clean the debris in the collection box 141, by pulling the pull ring 154, the positioning block 152 can be driven into the interior of the installation groove, thereby unlocking the collection box 141, and then the collection box 141 can be conveniently moved out of the collection groove 14. Since the positioning block 152 is provided with a slope, when the collection box 141 is pushed in again, under the action of the slope, the positioning block 152 will move into the interior of the installation groove without manual operation.

[0044] The working principle of the present utility model is as follows: When using the present utility model, first, the upper mold 13 moves towards the lower mold 11, thereby completing the stamping of the automotive drive shaft. During this process, the first rack 131 first moves downward under the action of the upper mold 13. The downward movement of the first rack 131 causes the driving gear 221 to rotate counterclockwise for one circle. While the driving gear 221 rotates for one circle, it drives the connecting shaft 2211 to rotate for one circle. At this time, under the elastic force of the pawl spring 2222, the pawl 2221 is engaged with the inner wall of the incomplete gear 222, so that the incomplete gear 222 rotates for one circle. At this time, the incomplete gear 222 and the acceleration gear 23 are in an engaged state and the acceleration gear 23 is engaged with the second rack 211, so that the second rack 211 moves from left to right and compresses the return spring 25. When the incomplete part of the incomplete gear 222 rotates to the acceleration gear 23, the incomplete gear 222 is disengaged from the acceleration gear 23, and the acceleration gear 23 can rotate freely. The second rack 211 moves from right to left under the elastic force of the return spring 25. That is, during one downward movement of the upper mold 13, the cleaning component cleans the lower mold 11 twice.

[0045] When stamping is completed, the upper die 13 moves away from the lower die 11. The first rack 131 moves upward, driving the drive gear 221 to rotate clockwise. Due to the change in the rotation direction, the pawl 2221 will not engage with the inner wall of the incomplete gear 222, thus having no impact on the incomplete gear 2222. Furthermore, when there is a workpiece being processed in the lower die 11, the brush plate 21 will not move, thereby avoiding interference between the processed workpiece and the brush plate 21.

[0046] Furthermore, during the process of the upper die 13 moving towards the lower die 11, the airbag 31 will also be compressed, thereby generating an exhaust air flow. The exhaust air flow acts on the lower die 11 through the second air duct 312 and the air blowing chamber 44. The exhaust air flow blows the debris at the cleaning dead angle of the bristles 24, and the two cleanings of the lower die 11 by the cleaning assembly fully improve the cleaning effect and avoid the accumulation of debris at the cleaning dead angle of the bristles 24. At the same time, when the upper die 13 moves upward, the airbag 31 will generate a suction air flow to suck and collect the smaller metal debris that is easily affected by the air flow.

[0047] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An automotive drive shaft forging and stamping die, comprising a base, wherein a lower die and a guide shaft are fixed to the base, and the guide shaft penetrates through an upper die and is slidably connected to the upper die; characterized in that, It also includes an airbag device and a cleaning component; The cleaning component includes a brush plate, a control component and an acceleration gear. The control component and the acceleration gear are rotatably arranged on the lower mold. The brush plate is slidably connected to the lower mold, and bristles acting on the lower mold are arranged on one side close to the lower mold. The upper mold is fixedly connected with a first rack, and the brush plate is fixedly connected with a second rack. A return spring is sleeved at one end of the second rack. The control component includes a driving gear and an incomplete gear. The driving gear is rotatably connected to the incomplete gear through a connecting shaft. An arrester is fixedly connected inside the incomplete gear. The arrester is rotatably connected to the connecting shaft, and an arrester spring is fixed between the arrester and the connecting shaft; The first rack, the control component, the acceleration gear and the second rack are sequentially meshed for transmission.

2. The forging and stamping die for an automobile drive shaft according to claim 1, wherein The airbag device includes an airbag component and a blowing and suction chip removal component. The airbag component is arranged on the side of the base. The airbag component includes an airbag, a movable plate fixedly connected to the upper end surface of the airbag, and a return column slidably connected to the movable plate. The return column is sleeved with a first spring, and the movable plate is fixedly connected to the upper mold.

3. The forging and stamping die for an automobile drive shaft according to claim 2, characterized in that, The airbag is communicated with a first air duct and a second air duct; an exhaust air flow is formed in the second air duct during the compression process of the airbag, and a suction air flow is formed in the first air duct during the deformation recovery process of the airbag.

4. The forging and stamping die for an automotive drive shaft according to claim 3, characterized in that, The first air duct is connected with a first check valve, and the first check valve is used to close the first air duct during the compression process of the airbag and open the first air duct during the deformation recovery process of the airbag; The second air duct is connected with a second check valve, and the second check valve is used to open the second air duct during the compression process of the airbag and close the second air duct during the deformation recovery process of the airbag.

5. A forging and stamping die for an automobile drive shaft according to claim 4, characterized in that, The blowing and suction chip removal component includes a dust suction bin and a blowing bin arranged on the side wall of the lower mold. The dust suction bin is communicated with the first air duct, and the blowing bin is communicated with the second air duct. A retaining net is arranged at the inlet of the dust suction bin, and a filter cotton is arranged inside the dust suction bin.

6. The forging and stamping die for an automotive drive shaft according to claim 1, characterized in that, A collection groove is formed in the base, and a collection box is arranged inside the collection groove. The collection box can be moved out of the collection groove along one side of the base, and a positioning component for preventing the collection box from moving out of the collection groove is arranged on the outer side wall of the base.

7. A forging and stamping die for an automotive drive shaft according to claim 6, characterized in that The positioning component includes a fixed seat and a positioning block. The fixed seat is fixedly arranged on the base. An installation groove is formed on one side of the fixed seat close to the collection box. The positioning block is slidably matched with the installation groove. A second spring for driving the positioning block to slide out of the installation groove is arranged inside the installation groove. The positioning block is also connected with a pull ring, the pull ring penetrates through the fixed seat, and a slope is arranged on the positioning block.

Images