A production device for shock-absorbing components for automobile chassis

Abstract

The present invention discloses a device for producing shock-absorbing components for automobile chassis, which relates to the technical field of metal profile extrusion, and includes an extruder body, a positioning frame for placing aluminum bars fixedly connected to one side of the extruder body, at least one diversion die fixedly connected to the side of the extruder body close to the positioning frame, and an electric push rod installed on the extruder body, which is fixedly connected to a push rack for extruding the aluminum bars into shock-absorbing inner cores, the push rack moves and contacts the aluminum bars, the electric push rod is slidably connected to a heat-insulating tube, and the positioning frame is fixedly connected to a first magnetic frame on the side close to the heat-insulating tube. Before extrusion molding, the present invention blocks the left port of the heat-insulating tube by the push rack to effectively preheat the heat-insulating tube, and during the extrusion molding process, the heat-insulating tube covers the aluminum bars to achieve a heat-insulating effect, thereby avoiding the temperature drop of the aluminum bars due to the slow extrusion speed, thereby ensuring the fluidity of the shock-absorbing inner core material and the performance of the final product while meeting the precision requirements.

Description

Technical Field

[0001] The invention relates to the technical field of metal profile extrusion, in particular to a device for producing shock-absorbing components for automobile chassis. Background Art

[0002] The production process of aluminum rod extrusion-molded shock-absorbing cores in shock-absorbing components for automobile chassis mainly involves heating the aluminum rods to a suitable temperature to increase their plasticity and reduce extrusion pressure, followed by high-pressure extrusion through a mold to obtain the shock-absorbing core of the desired shape and size. This process requires strict control of factors such as heating temperature, extrusion speed and mold accuracy to ensure that the product has good mechanical properties and surface quality, while improving efficiency and reducing costs.

[0003] Aluminum bar extrusion typically relies on a hydraulic push plate for powerful extrusion. Conventional methods involve transferring the aluminum bar and then pushing it directly into the mold. When higher precision is required, the extrusion speed is often slowed to ensure more accurate product dimensions. However, this slowing down of the extrusion speed means the aluminum bar spends more time in the mold, increasing the window for heat dissipation. This results in more heat being transferred from the aluminum bar to the surrounding environment, gradually decreasing the bar's temperature. Furthermore, when the extrusion speed is reduced, the friction between the aluminum bar and the mold decreases, and therefore the frictional heat generated is also reduced. This prevents the aluminum bar from generating frictional heat to compensate for the heat lost through conduction and heat dissipation, resulting in a drop in the overall bar temperature.

[0004] However, extrusion is a thermal processing process, and the drop in temperature will affect the fluidity of the material and the performance of the final product. In addition, high temperature will make the aluminum rod softer, which is beneficial to extrusion molding, but it may also cause uneven molding of the aluminum rod during the extrusion process, thereby causing fluctuations in extrusion pressure and reducing molding accuracy. Summary of the Invention

[0005] In order to overcome the shortcomings of easy reduction of extrusion temperature and unstable extrusion force, the present invention provides a production device for shock-absorbing components for automobile chassis.

[0006] A production device for shock-absorbing components for automobile chassis includes an extruder body, wherein one side of the extruder body is fixedly connected to a positioning frame for placing an aluminum rod, and at least one diversion die is fixedly connected to the side of the extruder body close to the positioning frame. The extruder body is equipped with an electric push rod, which is fixedly connected to a push frame for extruding the aluminum rod into a shock-absorbing inner core. The push frame moves in contact with the aluminum rod, and the electric push rod is slidably connected to an insulation cylinder. The inner diameter of the insulation cylinder is larger than the diameter of the aluminum rod, and a cylinder piston structure is formed between one side of the push frame and the insulation cylinder, and the push frame is provided with a slide groove. The gas in the insulation cylinder is discharged through the slide groove. The positioning frame is fixedly connected to a first magnetic frame on the side close to the insulation cylinder. When the push frame contacts the aluminum rod, the insulation cylinder is magnetically matched with the first magnetic frame. The side of the extruder body away from the first magnetic frame is fixedly connected to a second magnetic frame. When the push frame moves and is stuck in the second magnetic frame, the insulation cylinder is magnetically matched with the second magnetic frame. The insulation cylinder is rotatably connected to a baffle, which is slidably connected to the push frame, and a heater is fixed in the insulation cylinder.

[0007] Furthermore, the invention also includes a guide frame, which is rotatably connected to the heat preservation tube. The push frame is fixed with springs symmetrically distributed along the guide frame, and the springs are all the same.

[0008] Furthermore, it also includes a motor, the motor is fixedly connected to the electric push rod, the output shaft of the motor is fixedly connected to the rotating rod, the rotating rod is connected to the gear through a spline, an annular tooth groove is opened on the side of the insulation tube close to the gear, the gear drives the insulation tube to rotate through the annular tooth groove, the push frame is fixedly connected to the fixed frame, and the fixed frame is rotatably connected to the rotating rod.

[0009] Furthermore, the guide frame limits the gear.

[0010] Furthermore, it also includes a clamping rod symmetrically distributed along the positioning frame, the clamping rod is slidably connected to the positioning frame, the clamping rod is used to achieve the disconnection between the push frame and the aluminum rod, the push frame is provided with an inclined surface on the side close to the clamping rod, and a tension spring is fixed between the clamping rod and the positioning frame.

[0011] Furthermore, the opposite surfaces of the symmetrically distributed clamping rods are all configured as wedge-shaped surfaces, and the aluminum rods are extruded and fitted with the clamping rods through the wedge-shaped surfaces.

[0012] Furthermore, it also includes a rotating plate, which is rotatably connected to the sliding groove of the push frame, and the push plate is slidably connected to the sliding groove of the push frame.

[0013] Furthermore, one end of the push plate is in contact with the rotating plate, the other end of the push plate is in movable contact with the aluminum rod, and the push plate protrudes from the push frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Before extrusion molding, the present invention blocks the left port of the insulation cylinder by a push rack to effectively preheat the insulation cylinder, and during the extrusion molding process, the aluminum rod is covered with the insulation cylinder, thereby achieving a heat preservation effect and avoiding the temperature drop of the aluminum rod due to too slow extrusion speed, thereby meeting the precision requirements while ensuring the fluidity of the shock-absorbing inner core material and the performance of the final product.

[0016] During the extrusion molding process, the present invention covers the aluminum rod with a heat-insulating tube, which can ensure that the aluminum rod is uniformly molded during the entire extrusion process, avoid uneven molding of the aluminum rod due to extrusion force fluctuations during the extrusion process, and improve the molding accuracy of the shock-absorbing inner core.

[0017] The present invention positions the guide frame centrally between the springs on the left and right sides, so that the insulation cylinder can be quickly reset to its initial position relative to the push frame, thereby ensuring that the insulation cylinder can be successfully magnetically attracted when moving in the reverse direction, and avoiding the situation where the insulation cylinder fails to reset to the initial position, resulting in failure of magnetic attraction due to excessive distance when moving in the reverse direction.

[0018] In the extrusion molding process of the present invention, the heat preservation cylinder is driven to rotate by a motor, so that the hot air flow in the heat preservation cylinder flows evenly, achieving the effect of uniform heat preservation.

[0019] The present invention realizes the separation between the push frame and the aluminum rod through the clamping rod, thereby preventing the formed product from being carried out in the reverse direction when the push frame is reset, thereby avoiding scratches, cracks, abrasions or other damages on the surface of the formed product, allowing the push frame to be reset smoothly, thereby avoiding the jamming or damage of mechanical parts.

[0020] The present invention provides a rotating plate on the right side of the slide groove on the push frame to delay the operation of the insulation tube sliding leftward relative to the push frame, so that when the insulation tube completely covers the aluminum rod, the hot air in the right part of the insulation tube is discharged onto the aluminum rod through the slide groove of the push frame, thereby reducing heat loss and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a production device for shock-absorbing components for automobile chassis according to the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the extruder body, positioning frame and diversion die of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the separation of the positioning frame and the diversion mold of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the electric push rod, push frame and heat preservation cylinder of the present invention;

[0025] Figure 5It is a schematic diagram of the three-dimensional structure of the push frame, guide frame and spring components of the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating rod, gear, fixing frame and other components of the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the push frame, the clamping rod and the tension spring and other components of the present invention;

[0028] Figure 8 Schematic diagram of the three-dimensional structure of the electric push rod, push frame, rotating plate and push plate of the present invention;

[0029] Figure 9 It is a schematic diagram of the three-dimensional structure of the push frame, rotating plate and push plate of the present invention;

[0030] Figure numerals: 1. Extruder body; 101. Aluminum rod; 102. Shock-absorbing inner core; 2. Positioning frame; 3. Diverter mold; 4. Electric push rod; 5. Push frame; 6. Insulation cylinder; 7. First magnetic frame; 8. Second magnetic frame; 9. Baffle; 10. Heater; 11. Guide frame; 12. Spring; 13. Motor; 14. Turning rod; 15. Gear; 151. Annular tooth groove; 16. Fixed frame; 17. Clamping rod; 171. Inclined surface; 18. Tension spring; 19. Turning plate; 20. Pushing plate. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1: A device for producing shock-absorbing components for automobile chassis, such as Figures 1-4As shown, it includes an extruder body 1, a positioning frame 2 is fixedly connected to the left side of the extruder body 1, and the aluminum rod 101 to be extruded is placed in the positioning frame 2. Two mutually cooperating diversion dies 3 are fixedly connected to the left side of the extruder body 1. When the aluminum rod 101 passes through the two diversion dies 3 from right to left in sequence, the aluminum rod 101 is extruded into a shock-absorbing inner core 102. An electric push rod 4 is installed on the right part of the extruder body 1. The rod part of the electric push rod 4 is fixed to the extruder body 1, and the driving part of the electric push rod 4 is slidably connected to the extruder body 1. A push frame 5 is fixed to the electric push rod 4, and the push frame 5 moves to the left to contact the aluminum rod 101. The right part of the electric push rod 4 is slidably connected to the insulation cylinder 6 along the left and right directions. The inner diameter of the insulation cylinder 6 is greater than The diameter of the aluminum rod 101, a cylinder-piston structure is formed between the left part of the push frame 5 and the insulation cylinder 6, and a slide groove is opened on the left part of the push frame 5. The right side of the positioning frame 2 is fixedly connected to the first magnetic frame 7. When the left end of the push frame 5 contacts the right end of the aluminum rod 101, the insulation cylinder 6 is magnetically matched with the first magnetic frame 7. At this time, the insulation cylinder 6 slides to the left relative to the push frame 5, and the gas in the right part of the insulation cylinder 6 is discharged to the left through the slide groove. The right side of the extruder body 1 is fixedly connected to the second magnetic frame 8, and the push frame 5 moves to the right and is stuck in the second magnetic frame 8. At this time, the insulation cylinder 6 is magnetically matched with the second magnetic frame 8. The right side of the insulation cylinder 6 is rotatably connected to the baffle 9, which is slidably connected to the push frame 5. A heater 10 is fixed to the insulation cylinder 6, so that the inside of the insulation cylinder 6 is heated.

[0033] After that, the insulation tube 6 and the baffle 9 stop moving to the left, and the electric push rod 4 drives the push frame 5 to continue to move left, and the push frame 5 slides to the left relative to the insulation tube 6 and the baffle 9, and pushes the aluminum rod 101 to move left through the diversion die 3, thereby extruding the aluminum rod 101 into the shock-absorbing inner core 102.

[0034] After forming, the electric push rod 4 is controlled to drive the push frame 5 to move to the right, and the push frame 5 drives the insulation tube 6 to move to the right through the baffle 9 until the push frame 5 moves to the right and is stuck in the second magnetic frame 8. In this way, space is freed up to facilitate the subsequent loading of the aluminum rod 101. At this time, the electric push rod 4 and the push frame 5 stop moving to the right, and the insulation tube 6 is affected by the magnetic force and continues to move to the right relative to the push frame 5 until it is adsorbed on the second magnetic frame 8. At this time, the left port of the insulation tube 6 is blocked by the left part of the push frame 5, so that the heat of the insulation tube 6 is retained in the tube, so as to effectively preheat the insulation tube 6 and prevent the heat of the insulation tube 6 located on the left side of the push frame 5 from being lost to the outside.

[0035] In summary, before extrusion molding, the present invention blocks the left port of the insulation tube 6 by the push frame 5 to effectively preheat the insulation tube 6, and during the extrusion molding process, the aluminum rod 101 is covered by the insulation tube 6, thereby achieving a heat preservation effect and avoiding the temperature drop of the aluminum rod 101 due to the slow extrusion speed, thereby meeting the precision requirements while ensuring the fluidity of the shock-absorbing inner core 102 material and the performance of the final product.

[0036] During the extrusion molding process, the present invention can ensure that the aluminum rod 101 is uniformly molded during the entire extrusion process by covering the aluminum rod 101 with the insulation tube 6, thereby avoiding uneven molding of the aluminum rod 101 due to fluctuations in extrusion force during the extrusion process and improving the molding accuracy of the shock-absorbing inner core 102.

[0037] like Figure 5 As shown, it also includes a guide frame 11, which is rotatably connected to the right part of the insulation cylinder 6. The upper and lower sides of the right part of the push frame 5 are fixed with springs 12 symmetrically distributed along the guide frame 11, and the four springs 12 are the same.

[0038] The present invention positions the guide frame 11 centrally between the springs 12 on the left and right sides, so that the insulation tube 6 can quickly reset to its initial position relative to the push frame 5 at the moment it moves to the left or right and disengages from the magnetic attraction. Specifically, when the insulation tube 6 is separated from the first magnetic frame 7, it is reset by the spring 12 and slides to the right relative to the push frame 5 to reset. When the insulation tube 6 is separated from the second magnetic frame 8, it is reset by the spring 12 and slides to the left relative to the push frame 5 to reset, so as to ensure that the insulation tube 6 can be successfully magnetically attracted when moving in the reverse direction, and avoid the failure of magnetic attraction due to excessive distance when moving in the reverse direction for magnetic attraction due to failure to reset to the initial position.

[0039] Example 2: Based on Example 1, Figure 6As shown, it also includes a motor 13, the motor 13 is fixedly connected to the electric push rod 4, the output shaft of the motor 13 is fixedly connected to the rotating rod 14, the rotating rod 14 is splined with a gear 15, the guide frame 11 limits the right side of the gear 15, and an annular groove 151 is opened on the right side of the insulation tube 6. The gear 15 is engaged with the annular groove 151, and the gear 15 drives the insulation tube 6 to rotate through the annular groove 151. The front right side of the push frame 5 is fixedly connected to a fixing frame 16, and the fixing frame 16 is rotatably connected to the rotating rod 14.

[0040] During the above-mentioned extrusion molding process, the motor 13 is started, and the output shaft of the motor 13 drives the rotating rod 14 to rotate, thereby driving the gear 15 to rotate. The gear 15 drives the insulation tube 6 to rotate by driving the annular tooth groove 151, so that the hot air flow in the insulation tube 6 flows evenly, achieving the effect of uniform insulation. When the insulation tube 6 moves left and right relative to the push frame 5, the insulation tube 6 drives the gear 15 to move left or right on the rotating rod 14 through the annular tooth groove 151. After extrusion molding, the motor 13 is turned off.

[0041] Example 3: Based on Example 2, Figure 7 As shown, it also includes a clamping rod 17 symmetrically distributed along the upper and lower parts of the positioning frame 2. The clamping rod 17 is slidably connected to the positioning frame 2. The opposite surfaces of the clamping rod 17 symmetrically distributed above and below are set as wedge-shaped surfaces. The aluminum rod 101 is squeezed and fitted with the clamping rod 17 through the wedge-shaped surface. The clamping rod 17 is used to achieve the separation between the push frame 5 and the aluminum rod 101. A slope 171 is provided on the left side of the push frame 5. A tension spring 18 is fixed between the clamping rod 17 and the positioning frame 2.

[0042] During the extrusion process, the push frame 5 may form a strong adhesion force with the aluminum rod 101, resulting in the push frame 5 moving back to the right to reset and pulling out the formed product, causing scratches, cracks, abrasions or other damage on the surface of the formed product, reducing the surface quality of the product, and causing the push frame 5 to be unable to reset smoothly, which may cause the mechanical parts to become stuck or damaged. To avoid this situation, it is necessary to separate the push frame 5 from the aluminum rod 101 when the push frame 5 is reset. The specific operation is as follows:

[0043] When the push frame 5 pushes the aluminum rod 101 to the left, the aluminum rod 101 contacts the wedge-shaped surface of the clamping rod 17. The aluminum rod 101 squeezes the clamping rod 17 through the wedge-shaped surface and slides toward the side of the tension spring 18. When the inclined surface 171 of the push frame 5 moves between the upper and lower clamping rods 17, the tension spring 18 resets and drives the clamping rod 17 to slide in the opposite direction and reset. When the push frame 5 moves to the right and resets, the aluminum rod 101 is blocked on the left side of the clamping rod 17, thus achieving the separation between the push frame 5 and the aluminum rod 101.

[0044] like Figure 8 and Figure 9As shown, it also includes a rotating plate 19, which is rotatably connected to the right side of the slide groove of the push frame 5. The push frame 5 is connected to a push plate 20 that slides in the left and right directions. The rotating plate 19 contacts the right end of the push plate 20, and the left end of the push plate 20 protrudes from the push frame 5. The left end of the push plate 20 moves to the left and contacts the aluminum rod 101.

[0045] Since the right side of the heat preservation tube 6 is closed, at the moment when the heat preservation tube 6 is separated from the second magnetic frame 8 to the left, the spring 12 is reset, so that when the heat preservation tube 6 slides to the left relative to the push frame 5, a small amount of hot air in the right part of the heat preservation tube 6 will be discharged to the left through the slide groove on the push frame 5. At this time, the heat preservation tube 6 has not yet covered the aluminum rod 101. In order to make full use of this part of the hot air, the operation of sliding the heat preservation tube 6 to the left relative to the push frame 5 can be delayed by the following operation, so that only when the left end of the push frame 5 contacts the right end of the aluminum rod 101, that is, when the heat preservation tube 6 completely covers the aluminum rod 101, the heat preservation tube 6 will slide to the left relative to the push frame 5. Specifically:

[0046] At the moment when the insulation tube 6 separates from the second magnetic frame 8 to the left, the hot air in the right part of the insulation tube 6 cannot be discharged temporarily because the rotating plate 19 blocks the right end of the slide groove of the push frame 5. When the push frame 5 drives the push plate 20 to move to the left and contacts the right end of the aluminum rod 101, the aluminum rod 101 pushes the rotating plate 19 to the right through the push plate 20, so that the hot air in the right part of the insulation tube 6 is discharged to the aluminum rod 101 through the slide groove of the push frame 5, reducing heat loss and saving energy. When the push frame 5 drives the push plate 20 to move to the right and separate from the aluminum rod 101, the rotating plate 19 swings to the left and resets, thereby pushing the push plate 20 to slide to the left and reset.

[0047] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A device for producing shock-absorbing components for automobile chassis, comprising an extruder body (1), a positioning frame (2) for placing aluminum bars (101) fixedly connected to one side of the extruder body (1), and at least one diversion die (3) fixedly connected to the side of the extruder body (1) close to the positioning frame (2), characterized in that: An electric push rod (4) is installed on the extruder body (1), and the electric push rod (4) is fixedly connected to a push frame (5) for extruding the aluminum rod (101) into a shock-absorbing inner core (102). The push frame (5) is in mobile contact with the aluminum rod (101). The electric push rod (4) is slidably connected to a heat preservation tube (6). The inner diameter of the heat preservation tube (6) is larger than the diameter of the aluminum rod (101). A cylinder-piston structure is formed between one side of the push frame (5) and the heat preservation tube (6), and a slide groove is opened on the push frame (5). The gas in the heat preservation tube (6) is discharged through the slide groove. A first magnetic frame (7) is fixedly connected to the side of the positioning frame (2) close to the heat preservation tube (6). When the push frame (5) contacts the aluminum rod (101), the heat preservation tube (6) and the first magnetic frame (7) are magnetically attracted to each other. The extruder body (1) is fixedly connected to a second magnetic frame (8) on a side away from the first magnetic frame (7); when the push frame (5) moves and snaps into the second magnetic frame (8), the heat preservation tube (6) and the second magnetic frame (8) are magnetically engaged; the heat preservation tube (6) is rotatably connected to a baffle (9); the baffle (9) is slidably connected to the push frame (5); a heater (10) is fixedly connected inside the heat preservation tube (6); and a rotating plate (19) is also included, the rotating plate (19) is rotatably connected to the right side of the slide groove of the push frame (5); a push plate (20) is slidably connected in the slide groove of the push frame (5) along the left and right directions; one end of the push plate (20) is in contact with the rotating plate (19), and the other end of the push plate (20) is in movably contact with the aluminum rod (101), and the push plate (20) protrudes from the push frame (5).

2. The production device for shock-absorbing components for automobile chassis according to claim 1, characterized in that: It also includes a guide frame (11), the guide frame (11) is rotatably connected to the heat preservation tube (6), and the push frame (5) is fixed with springs (12) symmetrically distributed along the guide frame (11).

3. The production device for shock-absorbing components for automobile chassis according to claim 2, characterized in that: The invention also includes a motor (13), wherein the motor (13) is fixedly connected to the electric push rod (4), the output shaft of the motor (13) is fixedly connected to a rotating rod (14), the rotating rod (14) is connected to a gear (15) via a spline, an annular tooth groove (151) is provided on a side of the heat preservation tube (6) close to the gear (15), and the gear (15) drives the heat preservation tube (6) to rotate via the annular tooth groove (151), and the push frame (5) is fixedly connected to a fixing frame (16), and the fixing frame (16) is rotationally connected to the rotating rod (14).

4. The production device for shock-absorbing components for automobile chassis according to claim 3, characterized in that: The guide frame (11) limits the position of the gear (15).

5. The production device for shock-absorbing components for automobile chassis according to claim 4, characterized in that: The invention also includes a clamping rod (17) symmetrically distributed along the positioning frame (2), wherein the clamping rod (17) is slidably connected to the positioning frame (2), and the clamping rod (17) is used to realize the disconnection between the push frame (5) and the aluminum rod (101). A slope (171) is provided on one side of the push frame (5) close to the clamping rod (17), and a tension spring (18) is fixed between the clamping rod (17) and the positioning frame (2).

6. The production device for shock-absorbing components for automobile chassis according to claim 5, characterized in that: The opposite surfaces of the symmetrically distributed clamping rods (17) are all set as wedge-shaped surfaces, and the aluminum rod (101) is extruded and matched with the clamping rod (17) through the wedge-shaped surfaces.

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