Damping part production device for automobile chassis

Abstract

The invention discloses a damping part production device for an automobile chassis, and relates to the technical field of metal profile extrusion, the damping part production device comprises an extruder body, one side of the extruder body is fixedly connected with a positioning frame for placing an aluminum bar, one side, close to the positioning frame, of the extruder body is fixedly connected with at least one shunting die, and the extruder body is provided with an electric push rod; the electric push rod is fixedly connected with a push frame used for extruding the aluminum bar into the damping inner core, the push frame moves to make contact with the aluminum bar, the electric push rod is slidably connected with a heat preservation barrel, and the side, close to the heat preservation barrel, of the positioning frame is fixedly connected with a first magnetic frame. Before extrusion forming, the left end opening of the heat preservation cylinder is blocked through the push frame so as to effectively preheat the heat preservation cylinder, in the extrusion forming process, the aluminum bar is sleeved with the heat preservation cylinder, the heat preservation effect is achieved, the situation that the temperature of the aluminum bar is reduced due to the too low extrusion speed is avoided, and therefore the precision requirement is met, and meanwhile the production efficiency is improved. The flowability of the damping inner core material and the performance of a final product are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of metal profile extrusion, and in particular to a production device for 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 includes heating the aluminum rods to a suitable temperature to increase their plasticity and reduce extrusion pressure, and then performing high-pressure extrusion molding through a mold to obtain a shock-absorbing core of the desired shape and size. In this process, factors such as heating temperature, extrusion speed and mold accuracy must be strictly controlled to ensure that the product has good mechanical properties and surface quality, while improving efficiency and reducing costs.

[0003] When aluminum bars are extruded, they are usually extruded with a hydraulic push plate. The conventional method is to push the aluminum bars directly after transferring them. When the precision requirements are higher, it is usually necessary to slow down the extrusion speed to ensure more accurate product dimensions. Slowing down the extrusion speed means that the aluminum bars stay in the mold for a longer time, increasing the time window for heat dissipation, causing more heat to be transferred from the aluminum bars to the surrounding environment, thereby gradually reducing the temperature of the aluminum bars. Moreover, when the extrusion speed is reduced, the friction between the aluminum bars and the mold is reduced, so the friction heat generated is also reduced accordingly. This makes it impossible for the aluminum bars to generate heat through friction to supplement the heat lost due to heat conduction and heat dissipation, resulting in a decrease in the overall temperature of the aluminum bars.

[0004] However, extrusion is a thermal processing process. 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 the extrusion force and reducing the molding accuracy. Summary of the invention

[0005] In order to overcome the disadvantages that the extrusion temperature is easily reduced and the extrusion force is unstable, the present invention provides a production device for shock absorbing components for automobile chassis.

[0006] A device for producing shock-absorbing components for automobile chassis comprises an extruder body, a positioning frame for placing aluminum bars is fixedly connected to one side of the extruder body, at least one diversion die is fixedly connected to one side of the extruder body close to the positioning frame, an electric push rod is installed on the extruder body, the electric push rod is fixedly connected to a push frame for extruding the aluminum bars into shock-absorbing inner cores, the push frame is in mobile contact with the aluminum bars, the electric push rod is slidably connected to a heat preservation cylinder, the inner diameter of the heat preservation cylinder is larger than the diameter of the aluminum bars, a cylinder piston structure is formed between one side of the push frame and the heat preservation cylinder, and a slide groove is provided on the push frame, and the gas in the heat preservation cylinder is discharged through the slide groove, a first magnetic frame is fixedly connected to one side of the positioning frame close to the heat preservation cylinder, when the push frame is in contact with the aluminum bars, the heat preservation cylinder and the first magnetic frame are magnetically matched, a second magnetic frame is fixedly connected to one side of the extruder body away from the first magnetic frame, when the push frame moves and is clamped into the second magnetic frame, the heat preservation cylinder and the second magnetic frame are magnetically matched, the heat preservation cylinder is rotatably connected to a baffle, the baffle is slidably connected to the push frame, and a heater is fixedly connected in the heat preservation cylinder.

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

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

[0009] Furthermore, the guide frame limits the position of 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, a slope is set on the side of the push frame 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 matched with the clamping rods through the wedge-shaped surfaces.

[0012] Furthermore, it also includes a rotating plate, which is rotatably connected to the slide groove of the push frame, and the push plate is slidably connected to the slide 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: Before extrusion molding, the present invention blocks the left port of the insulation tube by a push frame to effectively preheat the insulation tube, and during the extrusion molding process, the aluminum rod is covered by the insulation tube, so as to achieve a heat preservation effect and avoid 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.

[0015] During the extrusion molding process, the present invention can ensure that the aluminum rod is uniformly molded during the entire extrusion process by covering the aluminum rod with a heat-insulating tube, thereby avoiding uneven molding of the aluminum rod due to extrusion force fluctuations during the extrusion process and improving the molding accuracy of the shock-absorbing inner core.

[0016] 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 the 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 failure of the magnetic attraction due to excessive distance when moving in the reverse direction for magnetic attraction due to failure to reset to the initial position.

[0017] 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.

[0018] The present invention achieves the separation between the push frame and the aluminum rod by using the clamping rod, so as to prevent the formed product from being carried out in the reverse direction when the push frame is reset, thereby preventing scratches, cracks, abrasions or other damages from appearing on the surface of the formed product, so that the push frame can be reset smoothly, thereby avoiding the jamming or damage of mechanical parts.

[0019] 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

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the shock-absorbing component production device for automobile chassis of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the extruder body, the positioning frame and the diversion die and other components of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the separation of the positioning frame and the diversion mold of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the electric push rod, push frame, heat preservation cylinder and other components of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the push frame, guide frame, spring and other components of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the components such as the rotating rod, the gear and the fixing frame of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the push frame, the clamping rod, the tension spring and other components of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the electric push rod, push frame, rotating plate and push plate of the present invention; Figure 9 It is a schematic diagram of the three-dimensional structure of the push frame, the rotating plate and the push plate of the present invention; Figure numerals: 1, extruder body; 101, aluminum rod; 102, shock-absorbing inner core; 2, positioning frame; 3, diversion 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, rotating rod; 15, gear; 151, annular tooth groove; 16, fixed frame; 17, clamping rod; 171, inclined plane; 18, tension spring; 19, rotating plate; 20, push plate. DETAILED DESCRIPTION

[0021] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Embodiment 1: A device for producing shock-absorbing components for automobile chassis, such as Figures 1-4 As shown, it includes an extruder body 1, a positioning frame 2 is fixedly connected to the left side of the extruder body 1, and an aluminum rod 101 to be extruded is placed in the positioning frame 2. Two mutually matching 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 fixedly connected to the extruder body 1. The driving part of the electric push rod 4 is slidably connected to the extruder body 1. A push frame 5 is fixedly connected to the electric push rod 4. The push frame 5 moves to the left and contacts the aluminum rod 101. The right part of the electric push rod 4 is slidably connected to a heat preservation tube 6 along the left and right directions. The inner diameter of the heat preservation tube 6 is greater than The diameter of the aluminum rod 101, the left part of the push frame 5 and the insulation cylinder 6 form a cylinder-piston structure, and the left part of the push frame 5 is provided with a slide groove, the right side of the positioning frame 2 is fixedly connected with a 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 and the first magnetic frame 7 are magnetically matched, 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, and the right side of the extruder body 1 is fixedly connected with a 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 and the second magnetic frame 8 are magnetically matched, and the right side of the insulation cylinder 6 is rotatably connected with a baffle 9, and the baffle 9 is slidably connected to the push frame 5, and a heater 10 is fixedly connected in the insulation cylinder 6, so that the inside of the insulation cylinder 6 is heated up.

[0023] The specific process for producing the shock-absorbing inner core 102 is as follows: first, the aluminum rod 101 is placed in the positioning frame 2, and the heater 10 is started to heat and keep the insulation tube 6 warm, and then the electric push rod 4 is controlled to drive the push frame 5 to move slowly to the left, and the push frame 5 drives the insulation tube 6 to move to the left through the baffle 9. During this process, the insulation tube 6 gradually covers the aluminum rod 101, so that the insulation tube 6 is close 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 tube 6 moves to the left relative to the push frame 5 under the action of the magnetic attraction of the first magnetic frame 7 until it is adsorbed on the first magnetic frame 7, so that the insulation tube 6 completely covers the aluminum rod 101. 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 moving to the 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 to the left through the diversion mold 3, thereby extruding the aluminum rod 101 into a shock-absorbing inner core 102.

[0024] 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 attraction 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.

[0025] 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, so as to achieve a heat preservation effect and avoid 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.

[0026] 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.

[0027] like Figure 5 As shown, it also includes a guide frame 11, which is rotatably connected to the right part of the insulation tube 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.

[0028] 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 the initial position relative to the push frame 5 at the moment of moving to the left or right and disengaging 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, thereby ensuring that the insulation tube 6 can be successfully magnetically attracted when moving in the reverse direction, thereby avoiding 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.

[0029] Embodiment 2: Based on embodiment 1, Figure 6 As 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, an annular tooth groove 151 is opened on the right side of the insulation tube 6, the gear 15 is engaged with the annular tooth groove 151, and the gear 15 drives the insulation tube 6 to rotate through the annular tooth groove 151, and the front right side of the push frame 5 is fixedly connected to a fixed frame 16, and the fixed frame 16 is rotatably connected to the rotating rod 14.

[0030] During the above 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.

[0031] Embodiment 3: Based on embodiment 2, Figure 7 As shown, it also includes a clamping rod 17 symmetrically distributed along the positioning frame 2, the clamping rod 17 is slidably connected to the positioning frame 2, and 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 matched with the clamping rod 17 through the wedge-shaped surface. The clamping rod 17 is used to achieve the separation between the pushing frame 5 and the aluminum rod 101. The left side of the pushing frame 5 is provided with an inclined surface 171, and a tension spring 18 is fixedly connected between the clamping rod 17 and the positioning frame 2.

[0032] During the extrusion process, the push frame 5 may form a strong adhesion force with the aluminum rod 101, so that when the push frame 5 moves to the right to reset, the push frame 5 may reversely bring out the formed product, resulting in scratches, cracks, abrasions or other damage on the surface of the formed product, reducing the surface quality of the product, and may cause the push frame 5 to fail to reset smoothly, which may cause the mechanical parts to get 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: 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, and the aluminum rod 101 slides toward the side of the tension spring 18 by squeezing the clamping rod 17 through the wedge-shaped surface. 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, thereby achieving the separation between the push frame 5 and the aluminum rod 101.

[0033] like Figure 8 and Figure 9 As 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. A push plate 20 is slidably connected to the slide groove of the push frame 5 along 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.

[0034] 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 the heat preservation tube 6 sliding 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 slides to the left relative to the push frame 5. Specifically: 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 contact 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.

[0035] 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, all 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 an aluminum rod (101) being fixedly connected to one side of the extruder body (1), and at least one diversion die (3) being fixedly connected to one side of the extruder body (1) close to the positioning frame (2), characterized in that: An electric push rod (4) is mounted on the extruder body (1). The electric push rod (4) is fixedly connected to a push frame (5) for extruding an aluminum rod (101) into a shock-absorbing inner core (102). The push frame (5) is in movable contact with the aluminum rod (101). The electric push rod (4) is slidably connected to a heat-insulating cylinder (6). The inner diameter of the heat-insulating cylinder (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-insulating cylinder (6). The push frame (5) is provided with a slide groove. Gas in the heat-insulating cylinder (6) is discharged through the slide groove. The positioning frame (2) A first magnetic frame (7) is fixedly connected to a side 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 matched; a second magnetic frame (8) is fixedly connected to a side of the extruder body (1) 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 matched; the heat preservation tube (6) is rotatably connected to a baffle (9); the baffle (9) is slidably connected to the push frame (5); and a heater (10) is fixedly connected inside the heat preservation tube (6).

2. The shock absorbing component production device 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 fixedly connected with springs (12) symmetrically distributed along the guide frame (11).

3. The device for producing shock-absorbing components for automobile chassis according to claim 2, characterized in that: The invention also comprises 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), 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 device for producing 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 device for producing shock-absorbing components for automobile chassis according to claim 4, characterized in that: It also includes a clamping rod (17) symmetrically distributed along the positioning frame (2), the clamping rod (17) being slidably connected to the positioning frame (2), the clamping rod (17) being used to realize the disconnection between the push frame (5) and the aluminum rod (101), a side of the push frame (5) close to the clamping rod (17) being provided with an inclined surface (171), and a tension spring (18) being fixedly connected between the clamping rod (17) and the positioning frame (2).

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

7. The device for producing shock-absorbing components for automobile chassis according to claim 6, characterized in that: It also includes a rotating plate (19), the rotating plate (19) is rotatably connected to a slide groove of the push frame (5), and a push plate (20) is slidably connected to the slide groove of the push frame (5).

8. The device for producing shock-absorbing components for automobile chassis according to claim 7, characterized in that: One end of the push plate (20) is in contact with the rotating plate (19), the other end of the push plate (20) is in movable contact with the aluminum rod (101), and the push plate (20) protrudes from the push frame (5).

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