Progressive stamping die for automobile seat sliding rail support

Abstract

The utility model discloses an automobile seat sliding rail support stamping progressive die, and belongs to the field of stamping dies. The stamping progressive die comprises a fixed die and a movable die arranged on the fixed die; material fixing structures are symmetrically arranged at one end, close to the fixed mold, of the movable mold; the fixing seat is fixedly connected with one end, close to the fixed mold, of the guide rod; the roller rod is rotationally mounted on the fixing seat; the fastening spring is arranged on the guide rod in a sleeving manner and corresponds to a position between the fixing seat and the movable mold; and the baffle plate is fixedly connected to one end, far away from the fixing seat, of the guide rod. The blank is stably positioned through the material fixing structure, displacement of the blank in the stamping process is effectively prevented, and therefore the size precision and the shape consistency of stamped parts are improved. Stamping waste products caused by blank displacement are reduced, and the production cost is reduced. And as the shutdown adjustment time required by waste products is reduced, the overall production efficiency is remarkably improved. The design of the roller rod avoids the problem that the surface of the blank is scratched, and the blank quality is protected.

Description

Technical Field

[0001] The present application relates to the technical field of stamping dies, and in particular to a stamping continuous die for a car seat slide rail bracket. Background Art

[0002] In the large-scale production of automotive seat rail brackets, stamping progressive die technology is widely used due to its efficient and precise processing characteristics. This process involves feeding metal billets into a die system via a continuous conveyor. The fixed die is stationary, serving as a reference surface for stamping and forming. The movable die, driven by a pushing mechanism, undergoes a periodic lifting and lowering motion to stamp the billet. This continuous, automated production method significantly improves production efficiency and ensures product consistency.

[0003] However, in the actual production process, after the movable die completes a stamping action and rises, separating from the fixed die, the blank located between the two should be moved forward by the continuous conveying device to the next station for the next round of stamping. However, during this process, due to the lack of sufficient lateral extrusion positioning mechanism when the blank moves, coupled with the elastic recovery force of the material itself and the slight vibration during transportation, the blank is very likely to offset or slip relative to the upper surface of the fixed die. This unexpected displacement of the blank directly leads to the subsequent stamping operation being unable to accurately align with the established die shape, which in turn causes dimensional deviations, shape distortions, and even a significant increase in the scrap rate of the stamped parts. In addition, frequent shutdowns for adjustments not only reduce the overall efficiency of the production line, but also increase maintenance costs and labor intensity.

[0004] Therefore, the present application provides a continuous die for stamping a car seat slide rail bracket to solve the above problems. Utility Model Content

[0005] The present application provides a continuous die for stamping a car seat slide rail bracket, which aims to solve the problem in the background technology that the existing blank lacks a sufficient lateral extrusion positioning mechanism when moving. The blank is very likely to offset or slip relative to the upper surface of the fixed die, which easily leads to the subsequent stamping operation being unable to accurately align with the established die shape, thereby causing dimensional deviation, shape distortion and even a significant increase in the scrap rate of the stamped parts.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a continuous die for stamping a car seat slide rail bracket, comprising a fixed die and a movable die arranged on the fixed die;

[0007] To prevent the blank from dislodging from the fixed die when the movable die is separated from the fixed die by the continuous conveyor, a positioning structure is symmetrically disposed on the end of the movable die near the fixed die to position the blank, which is moved by the continuous conveyor, on the fixed die. The positioning structure comprises a guide rod inserted into the movable die, a fixed seat fixedly connected to the end of the guide rod near the fixed die, a roller rod rotatably mounted on the end of the fixed seat away from the guide rod and in contact with the fixed die, a tightening spring mounted on the guide rod between the fixed seat and the movable die, and a baffle fixedly connected to the end of the guide rod away from the fixed seat. During the stamping process of the continuous die, the blank is positioned between the fixed die and the roller rod. When the movable die descends under the action of the pushing device for stamping, the movable die squeezes the tightening spring, pushing the fixed seat and roller rod against the blank surface, ensuring that the blank remains in contact with the upper surface of the fixed die. When the movable die ascends, the elastic force of the tightening spring causes the roller rod to exert a constant squeezing force on the blank, preventing the blank from shifting. The blank then passes through a continuous conveyor system that drives it forward to the next station. Rollers provide stable guidance and positioning during the rolling process, preventing it from escaping from the fixed die or shifting. The movable die then descends again for the next round of stamping, and this cycle repeats, achieving continuous and efficient stamping production.

[0008] Preferably, in order to facilitate the contact between the movable mold and the fixed mold under the action of the pushing device: a storage groove for accommodating the fixed seat and the roller rod is provided at the end of the movable mold close to the fixed mold, and a circular groove is provided inside the storage groove for accommodating part of the fastening spring. The design of the storage groove and the circular groove makes the mold more compact when not in operation, reduces the floor space, and facilitates storage and transportation. Through the guiding effect of the storage groove, the fixed seat and the roller rod can be returned to the predetermined position more accurately, enhancing the positioning effect and further reducing the risk of blank displacement. Because each component can be smoothly returned to its position, the adjustment time when the movable mold is lowered is reduced, thereby improving the efficiency of the entire stamping process.

[0009] Preferably, to prevent the blank from shifting under the action of the continuous conveyor, four fixed rods are symmetrically fixedly connected to the end of the fixed die near the movable die to guide the movement of the blank. The end of the movable die near the fixed die is provided with positioning slots corresponding to the fixed rods. The design of the fixed rods and positioning slots provides a clear guiding path for the blank to move on the continuous conveyor, effectively preventing the blank from shifting and shaking.

[0010] Preferably, in order to reduce the friction of the blank on the fixing rod, a bearing is mounted on the fixing rod. The rolling contact of the bearing reduces the risk of scratching the surface of the blank and protects the quality of the blank.

[0011] Preferably, to reduce the impact force of the movable mold on the fixed mold, a buffer mechanism is fixedly mounted at each of the four corners of the end of the fixed mold near the movable mold. The buffer mechanism comprises a buffer rod fixedly connected to the fixed mold, a sleeve sleeved over the buffer rod, a limit plate disposed within the sleeve and fixedly connected to the buffer rod, and a buffer spring disposed within the sleeve and between the limit plate. The buffer mechanism effectively absorbs the impact force of the movable mold on the fixed mold, reducing mold vibration and noise, and improving the comfort of the working environment. By reducing the impact force, the buffer mechanism reduces stress concentration and fatigue damage to the mold structure caused by impact, thereby extending the mold's service life.

[0012] Preferably, a groove corresponding to the buffer mechanism is provided on the end of the movable mold near the fixed mold. The tight fit of the groove and the sleeve enhances the structural stability between the movable and fixed molds, reduces vibration and shaking caused by impact, and improves the overall stability of the mold. By reducing impact force and vibration, the groove design helps reduce stress concentration and fatigue damage in the mold structure, thereby extending the mold's service life.

[0013] This application utilizes a fixed material structure to stably position the blank, effectively preventing its displacement during the stamping process, thereby improving the dimensional accuracy and shape consistency of the stamped parts. This reduces stamping waste caused by blank displacement, lowering production costs. By reducing downtime required for adjustments due to waste, overall production efficiency is significantly improved. The roller design prevents surface scratches on the blank, protecting its quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a stamping continuous die for a car seat slide rail bracket;

[0015] Figure 2 for Figure 1 Bottom view of the structure of the middle movable mold;

[0016] Figure 3 for Figure 1 Structural cross-sectional view of the buffer mechanism in .

[0017] In the picture:

[0018] 1. Fixed mold; 2. Moving mold; 21. Receiving groove; 22. Circular groove; 23. Positioning groove; 24. Groove; 3. Material fixing structure; 31. Guide rod; 32. Fixed seat; 33. Roller rod; 34. Fastening spring; 35. Baffle; 4. Fixed rod; 41. Bearing; 5. Buffer mechanism; 51. Buffer rod; 52. Sleeve; 53. Limit plate; 54. Buffer spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] This embodiment provides a continuous die for stamping a car seat rail bracket, such as Figure 1-3 As shown, the stamping continuous die includes a fixed die 1 and a movable die 2 arranged on the fixed die 1;

[0021] To prevent the blank from dislodging from the fixed die 1 and shifting due to the continuous conveyor's movement when the movable die 2 is separated from the fixed die 1, a symmetrically positioned positioning structure 3 is provided at the end of the movable die 2 near the fixed die 1. This positioning structure 3 comprises a guide rod 31 inserted into the movable die 2, a mounting seat 32 fixedly connected to the end of the guide rod 31 near the fixed die 1, a roller 33 rotatably mounted on the end of the mounting seat 32 away from the guide rod 31 and in contact with the fixed die 1, a tightening spring 34 mounted on the guide rod 31 between the mounting seat 32 and the movable die 2, and a baffle 35 fixedly connected to the end of the guide rod 31 away from the mounting seat 32. The stable positioning of the blank by the positioning structure 3 effectively prevents blank displacement during the stamping process, thereby improving the dimensional accuracy and shape consistency of the stamped parts. This reduces stamping scrap caused by blank displacement and lowers production costs. By reducing downtime and adjustment time due to scrap, overall production efficiency has been significantly improved. The design of the roller 33 prevents scratches on the blank surface and protects the quality of the blank. During the stamping process, the blank is positioned between the fixed die 1 and the roller 33. When the movable die 2 is lowered by the pushing mechanism for stamping, the movable die 2 squeezes the fastening spring 34, pushing the fixed seat 32 and the roller 33 against the blank surface, ensuring that the blank remains in contact with the upper surface of the fixed die 1. When the movable die 2 rises, the elastic force of the fastening spring 34 constantly exerts a compressive force on the blank by the roller 33, preventing displacement. The continuous conveying device then drives the blank forward to the next station. During the rolling process, the roller 33 provides stable guidance and positioning for the blank, preventing it from separating from the fixed die 1 or shifting. The movable die 2 then descends again for the next round of stamping. This cycle repeats, achieving continuous and efficient stamping production.

[0022] Specifically, to facilitate contact between the movable mold 2 and the fixed mold 1 under the action of the pushing device, a receiving groove 21 is provided at the end of the movable mold 2 near the fixed mold 1 to accommodate the fixed seat 32 and the roller rod 33. A circular groove 22 is provided within the receiving groove 21 to accommodate part of the tightening spring 34. The design of the receiving groove 21 and the circular groove 22 makes the mold more compact when not in use, reducing the footprint and facilitating storage and transportation. The guiding effect of the receiving groove 21 allows the fixed seat 32 and the roller rod 33 to return to their predetermined positions more accurately, enhancing the positioning effect and further reducing the risk of blank displacement. Since all components can be smoothly returned to their positions, the adjustment time required when the movable mold 2 is lowered is reduced, thereby improving the efficiency of the entire stamping process. During the stamping process, when the pushing device drives the movable mold 2 to descend, the fixed seat 32 and the roller rod 33 enter the receiving groove 21, and the tightening spring 34 is further compressed. As the movable mold 2 continues to descend, the roller rod 33 always maintains contact with the blank, and then the blank always maintains contact with the fixed mold 1. After the stamping is completed, the pushing device drives the movable mold 2 to rise. At this time, the fastening spring 34 quickly releases energy, pushing the fixed seat 32 and the roller rod 33 to move outward along the guidance of the receiving groove 21, ensuring that the roller rod 33 is close to the surface of the blank and that the blank always remains between the roller rod 33 and the fixed mold 1. At this time, the continuous conveying device drives the blank forward to the next workstation, and the roller rod 33 provides stable guidance and positioning for the blank during the rolling process. Subsequently, the movable mold 2 descends again for the next round of stamping, and this cycle repeats to achieve continuous and efficient stamping production. In summary, through the design of the receiving groove 21 and the circular groove 22, not only the mold structure is optimized, the space utilization and work efficiency are improved, but also the positioning stability of the blank is significantly enhanced, and the product quality of the stamped parts is further improved.

[0023] Furthermore, to prevent the blank from shifting under the action of the continuous conveying device, four fixed rods 4 for guiding the movement of the blank are symmetrically fixedly connected to the end of the fixed mold 1 near the movable mold 2, and positioning grooves 23 corresponding to the fixed rods 4 are opened on the end of the movable mold 2 near the fixed mold 1. The design of the fixed rods 4 and the positioning grooves 23 provides a clear guide path for the movement of the blank on the continuous conveying device, effectively preventing the deviation and shaking of the blank. During the stamping process, the continuous conveying device continuously drives the blank forward. The blank moves between the relative fixed rods 4, and its two sides are guided by the fixed rods 4, moving stably along the predetermined path. At the same time, the movable mold 2 descends under the action of the pushing device, and the positioning grooves 23 on it are precisely aligned with the fixed rods 4 on the fixed mold 1 and embedded therein. At this time, the fixed rods 4 not only play a supporting and guiding role, but also limit the relative movement between the movable mold 2 and the fixed mold 1 by cooperating with the positioning grooves 23, ensuring the accuracy and stability of the stamping action. After the stamping is completed, the movable die 2 rises, the fixed rod 4 disengages from the positioning groove 23, and the continuous conveying device continues to drive the blank forward to the next station for the next round of stamping. This cycle repeats, achieving continuous and efficient stamping production.

[0024] Furthermore, to reduce the friction of the blank on the fixed rod 4, a bearing 41 is mounted on the fixed rod 4. The rolling contact of the bearing 41 reduces the risk of scratching the blank surface, protecting the blank's quality. During the operation of the continuous stamping die, when the continuous conveyor drives the blank forward, the blank first contacts the bearing 41 on the fixed rod 4. Due to the rolling characteristics of the bearing 41, the resistance encountered by the blank during movement is greatly reduced, achieving low-friction guidance. At the same time, the fixed rod 4 remains stable and stationary thanks to the support of the bearing 41, providing a reliable guiding path for the blank. During the stamping operation, the movable die 2 descends to contact the fixed die 1 to complete the stamping process, while the combination of the fixed rod 4 and the bearing 41 continues to ensure the stable movement of the blank. After the stamping is completed, the movable die 2 rises and disengages from the fixed die 1, and the continuous conveyor continues to drive the blank forward to the next station for the next round of stamping. Throughout this process, the bearing 41 continuously exerts its role in reducing friction and improving movement efficiency, ensuring the efficient and stable operation of the continuous stamping die.

[0025] Furthermore, to reduce the impact force of the movable die 2 on the fixed die 1, a buffer mechanism 5 is fixedly mounted at each of the four corners of the end of the fixed die 1 near the movable die 2. The buffer mechanism 5 comprises a buffer rod 51 fixedly connected to the fixed die 1, a sleeve 52 sleeved over the buffer rod 51, a limit plate 53 disposed within the sleeve 52 and fixedly connected to the buffer rod 51, and a buffer spring 54 disposed within the sleeve 52 and between the limit plate 53. The buffer mechanism 5 effectively absorbs the impact force of the movable die 2 on the fixed die 1, reducing vibration and noise in the die, and improving the working environment. By reducing the impact force, the buffer mechanism 5 reduces stress concentration and fatigue damage in the die structure caused by impact, thereby extending the die's service life. During the stamping process, when the movable die 2, under the action of the pushing device, descends to contact the fixed die 1, the movable die 2 first contacts the sleeve 52 of the buffer mechanism 5. As the movable die 2 continues to descend, the sleeve 52 slides on the buffer rod 51 and compresses the buffer spring 54. The elastic deformation of buffer spring 54 absorbs some of the impact force, reducing the direct impact of movable die 2 on fixed die 1. Simultaneously, limit plate 53 restricts the sliding range of sleeve 52, ensuring that buffer mechanism 5 functions within its effective operating range. After the stamping operation is completed, the pushing device drives movable die 2 upward, and buffer spring 54 gradually returns to its original position, pushing sleeve 52 back to its initial position, preparing for the next stamping operation. Throughout this process, buffer mechanism 5, through its elastic cushioning action, effectively reduces the impact force of movable die 2 on fixed die 1, protecting the die structure and improving stamping accuracy.

[0026] Furthermore, a groove 24 corresponding to the buffer mechanism 5 is provided at one end of the movable mold 2 near the fixed mold 1. The close fit between the groove 24 and the sleeve 52 enhances the structural stability between the movable mold 2 and the fixed mold 1, reduces vibration and shaking caused by impact, and improves the overall stability of the mold. By reducing impact force and vibration, the groove 24 design helps reduce stress concentration and fatigue damage in the mold structure, thereby extending the service life of the mold. During the stamping process, when the movable mold 2 descends under the action of the pushing device, the groove 24 on it first contacts the sleeve 52 of the buffer mechanism 5 on the fixed mold 1. As the movable mold 2 continues to descend, the sleeve 52 gradually embeds into the groove 24, compressing the buffer spring 54 in the process. The elastic deformation of the buffer spring 54 effectively absorbs the impact force of the movable mold 2 on the fixed mold 1, reducing vibration and noise of the mold. At the same time, the close fit between the groove 24 and the sleeve 52 limits the relative movement between the two, ensuring the stable performance of the buffering effect. When the stamping operation is completed, the pushing device drives the movable die 2 upward, and the buffer spring 54 gradually returns to its original state, pushing the sleeve 52 out of the groove 24, preparing for the next stamping operation. Throughout this process, the synergistic effect of the groove 24 and the buffer mechanism 5 effectively reduces the impact force of the movable die 2 on the fixed die 1, protecting the die structure and improving stamping accuracy.

[0027] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A continuous die for stamping a car seat slide rail bracket, comprising a fixed die (1) and a movable die (2) arranged on the fixed die (1); Its characteristics are: A material fixing structure (3) for positioning the blank driven and moved by the continuous conveying device on the fixed mold (1) is symmetrically provided at one end of the movable mold (2) close to the fixed mold (1), and the material fixing structure (3) comprises a guide rod (31) inserted into the movable mold (2), a fixed seat (32) fixedly connected to one end of the guide rod (31) close to the fixed mold (1), a roller rod (33) rotatably mounted on one end of the fixed seat (32) away from the guide rod (31) and in contact with the fixed mold (1), a fastening spring (34) sleeved on the guide rod (31) corresponding to between the fixed seat (32) and the movable mold (2), and a baffle (35) fixedly connected to one end of the guide rod (31) away from the fixed seat (32).

2. The stamping continuous die for the automobile seat slide rail bracket according to claim 1, characterized in that: The movable mold (2) is provided with a receiving groove (21) at one end close to the fixed mold (1) for receiving the fixing seat (32) and the roller rod (33), and a circular groove (22) is provided inside the receiving groove (21) for receiving part of the fastening spring (34).

3. The stamping continuous die for the automobile seat slide rail bracket according to claim 1, characterized in that: Four fixed rods (4) for guiding the movement of the blank are symmetrically fixedly connected to one end of the fixed die (1) close to the movable die (2), and positioning grooves (23) corresponding to the fixed rods (4) are formed at one end of the movable die (2) close to the fixed die (1).

4. The stamping continuous die for the automobile seat slide rail bracket according to claim 3, characterized in that: A bearing (41) is sleeved on the fixing rod (4).

5. The stamping continuous die for the automobile seat slide rail bracket according to claim 1, characterized in that: A buffer mechanism (5) is fixedly installed at each of the four corners of one end of the fixed mold (1) close to the movable mold (2), and the buffer mechanism (5) comprises a buffer rod (51) fixedly connected to the fixed mold (1), a sleeve (52) sleeved on the buffer rod (51), a limit plate (53) arranged in the sleeve (52) and fixedly connected to the buffer rod (51), and a buffer spring (54) arranged in the sleeve (52) and between the limit plate (53).

6. The stamping continuous die for the automobile seat slide rail bracket according to claim 5, characterized in that: A groove (24) corresponding to the buffer mechanism (5) is provided at one end of the movable mold (2) close to the fixed mold (1).

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