Drawing forming device for upper support of shock absorber

Abstract

The invention discloses a stretching forming device for an upper support of a shock absorber, and belongs to the technical field of metal stamping tools. Comprising a supporting rod, a stamping system, a forming mechanism, a hydraulic cylinder, a connecting rod, a connecting cylinder, a female die, a plug pin, a male die mechanism, a displacement mechanism, a chassis, a supporting plate, a gear motor, a rotating plate, a limiting groove, a limiting block, a base assembly, a male die shell, a male die column, a fixing cylinder, a lifting rod, a spring, a male die table, a positioning mechanism, a supporting cylinder, a lifting motor, a first lead screw, a cylinder with a nut, a groove, a positioning groove and a centering mechanism. The device comprises a supporting box, a second lead screw, a synchronous motor, a nut block, a moving block, a translation mechanism and a feeding assembly. According to the device, the purpose that multiple dies are rapidly switched according to the forming depth of the upper support of the shock absorber for multiple times of stretching to prevent breakage caused by one-time stretching is achieved, and the purpose that blank materials of the upper support of the circular shock absorber are automatically fed and centered to prevent safety threats caused by manual operation of workers is further achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal stamping tools, and particularly to a stretching and forming device for an upper support of a shock absorber. Background Art

[0002] The upper support of a shock absorber is an important component in an automobile suspension system. Its main function is to correctly support the shock absorber at the corresponding position on the vehicle body. The upper support of the shock absorber is usually installed at the top of the shock absorber and connected to the vehicle body. At present, the upper support of the shock absorber is made of metal sheet and stretched and formed by stamping equipment.

[0003] When the existing upper support of the shock absorber is stretched and formed, the blank is usually placed on the female die first, and then the stamping equipment is started to make the male die move downward, so that the blank is pulled into the female die to form a preliminary shape. However, the following defects still exist in this stretching and forming process: when the groove of the upper support of the shock absorber is relatively deep, material rupture is likely to occur during one-time stretching and forming, and multiple stretching and forming require the operator to stop the machine and replace different dies, which affects the efficiency of stretching and forming; when loading the blank for forming the upper support of the shock absorber, it is mostly manually operated by the operator, which not only easily touches the forming device by mistake and poses a safety hazard, but also is inconvenient for automatically centering the blank on the die, affecting the precision of stretching and forming the upper support of the shock absorber.

[0004] At present, there is no good method on the market to solve the above problems. Summary of the Invention

[0005] The present invention provides a stretching and forming device for an upper support of a shock absorber, which is used to solve the problems in the prior art that it is inconvenient to quickly switch multiple dies for multiple stretching according to the forming depth during the stretching and forming of the upper support of the shock absorber, and it is also inconvenient to automatically load the circular blank of the upper support of the shock absorber and align it with the die.

[0006] The present invention provides a stretching and forming device for an upper support of a shock absorber, including:

[0007] A support rod, the upper end of the support rod is fixedly connected with a stamping system, the top of the stamping system is fixedly provided with a forming mechanism extending below the stamping system, the lower end of the support rod is fixedly connected with a male die mechanism. The male die mechanism includes a displacement mechanism, a base assembly, a positioning mechanism and a centering mechanism. The lower end of the support rod is fixedly connected with the displacement mechanism, the displacement mechanism is fixedly connected with the base assembly, the displacement mechanism drives the base assembly to rotate, the bottom wall of the base assembly is fixedly connected with the positioning mechanism, the positioning mechanism positions the base assembly, the upper end of the side wall of the base assembly is fixedly connected with four groups of the centering mechanisms arranged circumferentially. The centering mechanism drives the circular blank of the upper support of the shock absorber to be centered with the base assembly. One end of the male die mechanism is fixedly connected with a translation mechanism extending to one side of the base assembly, and the translation mechanism is fixedly connected with a feeding assembly. The translation mechanism drives the feeding assembly to move back and forth above the base assembly.

[0008] Optionally, the forming mechanism includes hydraulic cylinders that are circumferentially and uniformly distributed and fixedly connected to the edge of the top wall of the stamping system. The telescopic ends of the hydraulic cylinders extend below the stamping system, and a connecting rod is fixedly connected to the telescopic ends of the hydraulic cylinders. A connecting cylinder is sleeved on the connecting rod, a concave die is fixedly connected to the bottom of the connecting cylinder, and the connecting rod and the connecting cylinder are inserted and connected by a pin.

[0009] Optionally, the displacement mechanism includes a chassis fixedly connected to the lower end of the support rod. A support plate is fixedly connected to the middle of the upper end of the chassis. A reduction motor is fixedly connected to the middle of the inner bottom wall of the support plate. The output end of the reduction motor extends above the support plate and is fixedly connected to a rotating plate. A limiting groove is formed in the top wall of the chassis, and a limiting block is slidably inserted in the limiting groove.

[0010] Optionally, the base assembly includes a convex die shell fixedly connected to the top of the limiting block. A convex die column is fixedly connected to the middle of the inner bottom wall of the convex die shell. Fixed cylinders are fixedly connected to both ends of the inner bottom wall of the convex die shell. A lifting rod is slidably sleeved in the fixed cylinder. A spring that is slidably sleeved on the fixed cylinder and the lifting rod is fixedly connected to the bottom of the convex die column, and the top of the spring is fixedly connected to the top of the lifting rod. A convex die table located outside the convex die column is fixedly connected to the top of the lifting rod.

[0011] Optionally, the positioning mechanism includes a support cylinder fixedly connected to the middle of the outer bottom wall of the convex die shell, and the support cylinder is located between the two groups of limiting blocks. A lifting motor is fixedly connected to the top wall of the support cylinder. A first lead screw is rotatably connected between the top wall and the bottom wall of the support cylinder, and the upper end of the first lead screw is fixedly connected to the output end of the lifting motor. A nut cylinder that extends below the support cylinder is threadedly connected to the first lead screw. A groove for slidably inserting the nut cylinder is provided on the inner side wall of the support cylinder. A positioning groove is formed through the top wall of the chassis, and the positioning groove is matched with the nut cylinder extending out of the support cylinder.

[0012] Optionally, the centering mechanism includes four support boxes fixedly connected to the upper end of the side wall of the convex die shell and circumferentially and uniformly distributed. A second lead screw is rotatably connected between the two end faces of the support box. A synchronous motor is fixedly connected to one end face of the support box, and the output end of the synchronous motor is fixedly connected to one end of the second lead screw. A nut block is threadedly connected to the second lead screw, and the lower end of the nut block is slidably inserted into the bottom wall of the support box. A moving block located above the support box is fixedly connected to the top of the nut block.

[0013] Optionally, the translation mechanism includes a vertical seat fixedly connected to the lower end of the chassis. A driving motor is fixedly connected to the upper end of the side wall of the vertical seat. The output end of the driving motor is fixedly connected to a transmission wheel. A support column is fixedly connected to the edge of the other side wall of the transmission wheel. The lower end of the side wall of the vertical seat is rotatably connected to a first rotating plate through a first rotating shaft. A limiting track is fixedly connected to the middle of the first rotating plate, and the limiting track is slidably inserted with the support column. The top of the first rotating plate is rotatably connected to a second rotating plate through a second rotating shaft. The other end of the second rotating plate is rotatably connected to a moving rod through a third rotating shaft. A limiting cylinder fixed on the stamping system is slidably sleeved on the moving rod.

[0014] Optionally, the feeding assembly includes a top rod fixedly connected to the other end of the moving rod. An electric pump is fixedly connected to the lower end of the top rod. Vacuum suction cups are oppositely arranged at the lower end of the electric pump.

[0015] Optionally, cylindrical cavities are provided in all four concave molds, and the heights of the four cavities are arranged in an arithmetic progression.

[0016] Optionally, the limiting groove is composed of two concentric rings, and the two concentric rings are respectively located on both sides of the positioning groove. The positioning groove is concentric with the rings.

[0017] Optionally, the top wall of the punch column, the top wall of the punch table and the bottom wall of the moving block are all located on the same horizontal plane.

[0018] Optionally, a through groove matching with the support column is provided on the limiting track, and the middle of the through groove is arc-shaped.

[0019] A stretching forming device for the upper support of a shock absorber provided by the present invention can automatically switch the position of the base assembly without stopping the machine through the displacement mechanism, and position the base assembly below the concave molds with different cavity heights through the positioning mechanism, achieving the purpose of quickly switching multiple molds for multiple stretches according to the forming depth of the upper support of the shock absorber to prevent cracking caused by one-time stretching; through the translation mechanism, the circular blank of the upper support of the shock absorber can be automatically conveyed onto the base assembly, and through the centering mechanism, the blank can be pushed to automatically center with the base assembly, achieving the purpose of automatically feeding and centering the circular blank of the upper support of the shock absorber to prevent safety threats caused by manual operation of workers. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the present invention 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, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1It is a three-dimensional schematic diagram of a stretching and forming device for the upper support of a shock absorber according to the present invention;

[0022] Figure 2 It is a cross-sectional view of a stretching and forming device for the upper support of a shock absorber according to the present invention;

[0023] Figure 3 It is a three-dimensional schematic diagram of the forming mechanism according to the present invention;

[0024] Figure 4 It is a cross-sectional view of the forming mechanism according to the present invention;

[0025] Figure 5 It is a three-dimensional schematic diagram of the displacement mechanism according to the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the base assembly, positioning mechanism and centering mechanism according to the present invention;

[0027] Figure 7 It is the present invention Figure 2 An enlarged view of part A;

[0028] Figure 8 It is the present invention Figure 2 An enlarged view of part B;

[0029] Figure 9 It is a three-dimensional schematic of the translation mechanism and the feeding assembly of the present invention Figure 1 ;

[0030] Figure 10 It is a three-dimensional schematic of the translation mechanism and the feeding assembly of the present invention Figure 2 .

[0031] Reference numerals:

[0032] 1. Support rod; 2. Stamping system; 3. Forming mechanism; 301. Hydraulic cylinder; 302. Connecting rod; 303. Connecting cylinder; 304. Concave mold; 305. Plug pin; 4. Convex mold mechanism; 5. Displacement mechanism; 501. Chassis; 502. Support plate; 503. Reduction motor; 504. Rotating plate; 505. Limit groove; 506. Limit block; 6. Base assembly; 601. Convex mold shell; 602. Convex mold column; 603. Fixed cylinder; 604. Lifting rod; 605. Spring; 606. Convex mold table; 7. Positioning mechanism; 701. Support cylinder; 702. Lifting motor; 703. First lead screw; 704. Nut barrel; 705. Groove; 706. Positioning groove; 8. Centering mechanism; 801. Support box; 802. Second lead screw; 803. Synchronous motor; 804. Nut block; 805. Moving block; 9. Translation mechanism; 901. Vertical seat; 902. Driving motor; 903. Transmission wheel; 904. Support pillar; 905. First rotating plate; 906. Limit track; 907. Second rotating plate; 908. Moving rod; 909. Limit cylinder; 10. Loading assembly; 1001. Ejector rod; 1002. Electric pump; 1003. Vacuum chuck. Detailed implementation mode

[0033] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0034] As described above, in the one-time stretching forming of the upper support of the shock absorber with a deeper groove, material cracking is likely to occur. For multiple stretching forming, the staff needs to stop the machine to replace different molds, which affects the efficiency of stretching forming. When loading the blank for forming the upper support of the shock absorber, it is mostly manually operated by the staff, which is prone to accidentally touching the device and causing potential safety hazards. Manual centering will also affect the accuracy of stretching forming of the upper support of the shock absorber.

[0035] In view of this, the present invention provides a stretching and forming device for an upper support of a shock absorber, which can automatically switch the position of the base assembly through a displacement mechanism without stopping the machine, position the base assembly under a concave mold with different cavity heights through a positioning mechanism, and quickly switch multiple molds according to the forming depth of the upper support of the shock absorber for multiple stretches, thereby preventing the rupture of the blank of the circular upper support of the shock absorber caused by a single stretch; the circular blank of the upper support of the shock absorber can be automatically conveyed to the base assembly through a translation mechanism, and the blank can be pushed by a centering mechanism to be automatically centered with the base assembly, so that the circular blank of the upper support of the shock absorber can be automatically loaded and centered, preventing safety threats caused by manual operation of workers and improving the forming accuracy of the upper support of the shock absorber.

[0036] The following several Figures 1 to 10 Specifically describe the present invention.

[0037] As Figures 1 to 2 As shown in the figure, the present invention provides a stretching and forming device for an upper support of a shock absorber, including a support rod 1. The upper end of the support rod 1 is fixedly connected to a stamping system 2 that drives a forming mechanism 3. The top of the stamping system 2 is fixedly provided with a forming mechanism 3 that extends below the stamping system 2. The lower end of the support rod 1 is fixedly connected to a punch mechanism 4. The forming mechanism 3 and the punch mechanism 4 cooperate to automatically stretch and form a circular blank of the upper support of the shock absorber. The punch mechanism 4 further includes a displacement mechanism 5 for automatically switching the stretching and forming molds, a base assembly 6 for supporting the circular blank of the upper support of the shock absorber, a positioning mechanism 7 for positioning the base assembly 6 after the position is switched, and a centering mechanism 8 for automatically centering the circular blank of the upper support of the shock absorber after loading. One end of the punch mechanism 4 is fixedly connected to a translation mechanism 9 that extends to one side of the base assembly 6. A loading assembly 10 is fixedly connected to the translation mechanism 9. The translation mechanism 9 drives the loading assembly 10 to automatically move back and forth above the base assembly 6 to automatically load the circular blank of the upper support of the shock absorber.

[0038] As Figures 9 to 10As shown in the figure, the translation mechanism 9 includes a vertical seat 901 fixedly connected to the lower end of the chassis 501. The upper end of the side wall of the vertical seat 901 is fixedly connected with a driving motor 902. The driving motor 902 can be fixed through the vertical seat 901. The output end of the driving motor 902 is fixedly connected with a transmission wheel 903. After the driving motor 902 is started, it can drive the transmission wheel 903 to rotate, thereby driving the synchronous rotation of the support column 904 fixedly connected to the edge of the other side wall of the transmission wheel 903. A through groove with an arc-shaped middle is provided on the limit track 906 and is matched with the support column 904. Then, while the support column 904 rotates, it also slides in the through groove of the limit track 906. The lower end of the side wall of the vertical seat 901 is rotatably connected with a first rotating plate 905 through a first rotating shaft. The middle of the first rotating plate 905 is fixedly connected with the limit track 906. Then, the sliding of the support column 904 in the limit track 906 can push the first rotating plate 905 to swing around the first rotating shaft. The top of the first rotating plate 905 is rotatably connected with a second rotating plate 907 through a second rotating shaft. The swinging of the first rotating plate 905 can drive the second rotating plate 907 to swing around the second rotating shaft. The other end of the second rotating plate 907 is rotatably connected with a moving rod 908 through a third rotating shaft. Then, the swinging second rotating plate 907 can drive the moving rod 908 to move. In order to limit the movement track of the moving rod 908 to linear translation, a limit cylinder 909 fixed on the stamping system 2 is slidably sleeved on the moving rod 908. Then, the moving rod 908 reciprocally slides in the limit cylinder 909 driven by the second rotating plate 907. The feeding assembly 10 includes a top rod 1001 fixedly connected to the other end of the moving rod 908. Then, the top rod 1001 reciprocally translates accordingly. The lower end of the top rod 1001 is fixedly connected with an electric pump 1002. After the electric pump 1002 is started, the vacuum suction cups 1003 arranged oppositely at the lower end of the electric pump 1002 can adsorb the upper support blank of the circular shock absorber. When the top rod 1001 moves above the base assembly 6, the electric pump 1002 is stopped. Then, the adsorption force disappears, and the upper support blank of the circular shock absorber can be released onto the punch column 602. Subsequently, the top rod 1001 returns to the side of the base assembly 6, and then the driving motor 902 is stopped to make the top rod 1001 stationary waiting for the next feeding. In this way, the upper support blank of the circular shock absorber can be automatically conveyed onto the base assembly 6, avoiding the threat to safety caused by the accidental touch of the device when the staff's hand reaches between the forming mechanism 3 and the base assembly 6 for feeding.

[0039] As Figure 2 , Figure 6 and Figure 8As shown in the figure, the centering mechanism 8 includes four groups of support boxes 801 fixedly connected to the upper end of the side wall of the punch shell 601 and evenly distributed in a circumferential manner. A second screw rod 802 is rotatably connected between the two end faces of the support box 801. One end face of the support box 801 is fixedly connected with a synchronous motor 803, and the output end of the synchronous motor 803 is fixedly connected with one end of the second screw rod 802. The base assembly 6 includes a punch shell 601 fixedly connected to the top of the limit block 506. The middle of the inner bottom wall of the punch shell 601 is fixedly connected with a punch post 602. After the translational mechanism 9 transports the upper support blank of the circular shock absorber to the punch post 602, the synchronous motor 803 is started to rotate forward, which can drive the second screw rod 802 to rotate forward. The nut block 804 threaded on the second screw rod 802 moves towards the punch post 602 under the drive of the second screw rod 802. The lower end of the nut block 804 is slidably inserted into the bottom wall of the support box 801, which can limit the movement track of the nut block 804 to linear translation. The top of the nut block 804 is fixedly connected with a moving block 805 located above the support box 801. Then, each group of moving blocks 805 gathers under the drive of the nut block 804. The top wall of the punch post 602, the top wall of the punch table 606 and the bottom wall of the moving block 805 are all located on the same horizontal plane. The moving blocks 805 gather towards the upper support blank of the circular shock absorber from four directions. After abutting against the upper support blank of the circular shock absorber on the punch post 602, it can push the upper support blank of the circular shock absorber towards the center. Finally, each group of moving blocks 805 clamps the upper support blank of the circular shock absorber and aligns it with the center of the punch post 602. In this way, the upper support blank of the circular shock absorber after loading can be automatically centered, preventing poor stretching and forming effects caused by the misalignment of the blank, and also preventing poor centering accuracy caused by manual centering by workers.

[0040] As Figure 2 and Figures 5 to 7 shown, the displacement mechanism 5 includes a chassis 501 fixedly connected to the lower end of the support rod 1. The middle of the upper end of the chassis 501 is fixedly connected with a support plate 502. The middle of the inner bottom wall of the support plate 502 is fixedly connected with a reduction motor 503. After the reduction motor 503 is started, the output end of the reduction motor 503 extends above the support plate 502 and is fixedly connected with a rotating plate 504. The rotating plate 504 rotates accordingly to drive the base assembly 6 to rotate. A limit groove 505 is formed in the top wall of the chassis 501. The limit groove 505 is composed of two groups of concentric circles. A limit block 506 for improving the stability of the base assembly 6 is slidably inserted into the limit groove 505. In this way, multiple concave molds 304 with different cavity heights can be quickly switched under the condition of reducing the downtime. Through the switching, the upper support blank of the circular shock absorber can be stretched and formed multiple times, preventing the blank from cracking caused by one-time stretching and forming.

[0041] The positioning mechanism 7 includes a support cylinder 701 fixedly connected to the middle of the outer bottom wall of the punch shell 601, and the support cylinder 701 is located between two groups of limit blocks 506. A lifting motor 702 is fixedly connected to the top wall of the support cylinder 701. A first lead screw 703 is rotatably connected between the top wall and the bottom wall of the support cylinder 701. Cylindrical cavities are provided in each of the four sets of concave molds 304, and the heights of the four cavities are arranged in an arithmetic progression. The base assembly 6 drives the circular shock absorber clamped by the moving block 805 to rotate the upper support blank. When it is about to move below a set of concave molds 304 with the smallest cavity height and the nut barrel 704 is located above the positioning groove 706, the lifting motor 702 is started to rotate forward, and the upper end of the first lead screw 703 is fixedly connected to the output end of the lifting motor 702. Then the lifting motor 702 drives the first lead screw 703 to rotate forward. A nut barrel 704 threaded on the first lead screw 703 extends below the support cylinder 701. The nut barrel 704 then moves downward and extends out of the support cylinder 701. A groove 705 slidably inserted with the nut barrel 704 is provided on the inner side wall of the support cylinder 701, which can limit the linear lifting and lowering of the nut barrel 704. A positioning groove 706 is formed through the top wall of the chassis 501. The two concentric rings of the limit groove 505 are respectively located on both sides of the positioning groove 706. The positioning groove 706 is concentric with the ring, and the positioning groove 706 cooperates with the nut barrel 704 extending out of the support cylinder 701. At this time, the nut barrel 704 is inserted into the lower positioning groove 706, and then the nut barrel 704 slides along the positioning groove 706 driven by the base assembly 6. When the nut barrel 704 rotates to be blocked by the edge of the positioning groove 706 and cannot move forward, the circular shock absorber on the base assembly 6 automatically aligns with a set of concave molds 304 with the smallest cavity height. Then the lifting motor 702 is stopped. At this time, the first positioning of the circular shock absorber upper support blank is completed. After the positioning is completed, the synchronous motor 803 is started to rotate in reverse to drive each moving block 805 to leave above the base assembly 6. Subsequently, the forming mechanism 3 can be started to stretch and form the circular shock absorber upper support blank. By driving the positioning mechanism 7 to start, it can assist in positioning the concave mold 304 after the position is switched, improving the stability of the concave mold 304 during subsequent stamping and forming.

[0042] Such as Figures 2 to 5 And Figures 7 to 8As shown in the figure, the forming mechanism 3 includes hydraulic cylinders 301 that are circumferentially and evenly distributed at the edge of the top wall of the stamping system 2 and are fixedly connected thereto. The telescopic ends of the hydraulic cylinders 301 extend below the stamping system 2, and a connecting rod 302 is fixedly connected to the telescopic ends of the hydraulic cylinders 301. When the stamping system 2 drives the telescopic ends of the hydraulic cylinders 301 to extend, the connecting rod 302 can be driven to descend. A connecting cylinder 303 is sleeved on the connecting rod 302, and the connecting rod 302 and the connecting cylinder 303 are inserted and connected through a pin 305. A concave die 304 is fixedly connected to the bottom of the connecting cylinder 303. Then, the descending connecting rod 302 drives the concave die 304 with the smallest cavity height in a group to move downward, and the circular shock absorber upper support blank on the punch post 602 can be pressed downward. Fixed cylinders 603 are fixedly connected to both ends of the inner bottom wall of the punch shell 601. A lifting rod 604 is slidably sleeved in the fixed cylinders 603. A spring 605 is fixedly connected to the bottom of the punch post 602 and is slidably sleeved on the fixed cylinders 603 and the lifting rod 604. The top of the spring 605 and the top of the lifting rod 604 are fixedly connected with a punch platform 606 located outside the punch post 602. The punch post 602 coincides with the cavity of the concave die 304 with the smallest cavity height in a group. The punch platform 606 is pressed downward accordingly and drives the lifting rod 604 to slide downward in the fixed cylinder 603, and the spring 605 also contracts simultaneously. Then, a part of the circular shock absorber upper support blank on the punch platform 606 is stretched downward by the edge of the concave die 304 with the smallest cavity height in a group. At this time, the circular shock absorber upper support blank is stretched and formed for the first time. After the top wall of the cavity of the concave die 304 abuts against the middle of the circular shock absorber upper support blank, the stamping system 2 is started to drive the hydraulic cylinders 301 to contract, which can drive the concave die 304 to rise. At this time, the spring 605 rebounds to drive the lifting rod 604 to return to the same plane as the punch post 602, and the circular shock absorber upper support blank formed for the first time returns above the base assembly 6 accordingly.

[0043] When it is necessary to stretch the circular shock absorber upper support blank formed for the first time again to increase the depth, the moving block 805 can be driven again to clamp the circular shock absorber upper support blank formed for the first time. Then, the lifting motor 702 is started to reverse to retract the nut barrel 704 into the support cylinder 701. The reduction motor 503 is started to move the base assembly 6 and the circular shock absorber upper support blank formed for the first time towards the concave die 304 with a slightly larger cavity height beside. When the nut barrel 704 is located on another group of positioning grooves 706 again, the lifting motor 702 can be restarted to rotate forward to extend the nut barrel 704, and the circular shock absorber upper support blank formed for the first time is positioned for the second time below the concave die 304 with a slightly larger cavity height beside. By repeating the above steps, the second stretching and forming can be carried out. By analogy, the circular shock absorber upper support blank can be stretched and formed multiple times to prevent cracking caused by one-time forming. By equipping the circular shock absorber upper support blank with a plurality of concave dies 304 with different cavity heights and combining with the displacement mechanism 5 to switch the concave dies 304 in sequence, the circular shock absorber upper support blank can be stretched and formed step by step multiple times.

[0044] In summary, the stretching and forming device for the upper support of a shock absorber described in the present invention has the following advantages:

[0045] 1. The position of the base component 6 can be automatically switched without stopping the machine through the displacement mechanism 5. The base component 6 is positioned under the concave mold 304 with different cavity heights through the positioning mechanism 7, and multiple molds can be quickly switched for multiple stretches according to the forming depth of the upper support of the shock absorber, thereby preventing the circular blank of the upper support of the shock absorber from cracking caused by a single stretch;

[0046] 2. The circular blank of the upper support of the shock absorber can be automatically loaded through the translation mechanism 9, and the blank can be pushed to be automatically centered through the centering mechanism 8, which can prevent safety threats caused by manual operation of workers and improve the forming accuracy of the upper support of the shock absorber.

[0047] The hydraulic cylinder in the device is connected to the stamping system. The stamping system belongs to the common knowledge in the art and is not an improved technical point in this case, so it will not be elaborated here.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stretching and forming device for the upper support of a shock absorber, characterized in that Comprising: A support rod (1), at the upper end of the support rod (1) is fixedly connected with a stamping system (2), at the top of the stamping system (2) is fixedly arranged a forming mechanism (3) extending below the stamping system (2), at the lower end of the support rod (1) is fixedly connected with a punch mechanism (4), the punch mechanism (4) includes a displacement mechanism (5), a base assembly (6), a positioning mechanism (7) and a centering mechanism (8), at the lower end of the support rod (1) is fixedly connected with a displacement mechanism (5), on the displacement mechanism (5) is fixedly connected with a base assembly (6), at the bottom wall of the base assembly (6) is fixedly connected with a positioning mechanism (7) for positioning the base assembly (6), at the upper end of the side wall of the base assembly (6) are fixedly connected with four groups of the centering mechanisms (8) evenly distributed in a circumferential manner, the centering mechanism (8) drives the upper support blank of the circular shock absorber to be centered with the base assembly (6), one end of the punch mechanism (4) is fixedly connected with a translation mechanism (9) extending to one side of the base assembly (6), on the translation mechanism (9) is fixedly connected with a feeding assembly (10), and the translation mechanism (9) drives the feeding assembly (10) to move back and forth above the base assembly (6).

2. The shock absorber upper support stretching and forming device according to claim 1, characterized in that The forming mechanism (3) includes hydraulic cylinders (301) evenly distributed in a circumferential manner at the edge of the top wall of the stamping system (2) and fixedly connected thereto, the telescopic end of the hydraulic cylinder (301) extends below the stamping system (2), and the telescopic end of the hydraulic cylinder (301) is fixedly connected with a connecting rod (302), a connecting cylinder (303) is sleeved on the connecting rod (302), the bottom of the connecting cylinder (303) is fixedly connected with a concave die (304), and the connecting rod (302) and the connecting cylinder (303) are connected by a pin (305) in a plug-in manner.

3. The shock absorber upper support stretching and forming device according to claim 1, characterized in that The displacement mechanism (5) includes a chassis (501) fixedly connected to the lower end of the support rod (1), in the middle of the upper end of the chassis (501) is fixedly connected with a support plate (502), in the middle of the inner bottom wall of the support plate (502) is fixedly connected with a reduction motor (503), the output end of the reduction motor (503) extends above the support plate (502) and is fixedly connected with a rotating plate (504), a limiting groove (505) is opened on the top wall of the chassis (501), and a limiting block (506) is slidably inserted in the limiting groove (505).

4. The shock absorber upper support stretching and forming device according to claim 3, characterized in that, The base assembly (6) includes a punch shell (601) fixedly connected to the top of the limiting block (506), in the middle of the inner bottom wall of the punch shell (601) is fixedly connected with a punch column (602), at both ends of the inner bottom wall of the punch shell (601) are fixedly connected with fixed cylinders (603), a lifting rod (604) is slidably sleeved in the fixed cylinder (603), a spring (605) slidably sleeved on the fixed cylinder (603) and the lifting rod (604) is fixedly connected to the bottom of the punch column (602), and the top of the spring (605) is fixedly connected to the top of the lifting rod (604). The top of the lifting rod (604) is fixedly connected with a punch table (606) located outside the punch column (602).

5. The shock absorber upper support stretching and forming device according to claim 4, characterized in that, The positioning mechanism (7) includes a support cylinder (701) fixedly connected to the middle of the outer bottom wall of the punch shell (601), and the support cylinder (701) is located between the two groups of limit blocks (506). A lifting motor (702) is fixedly connected to the top wall of the support cylinder (701). A first lead screw (703) is rotatably connected between the top wall and the bottom wall of the support cylinder (701), and the upper end of the first lead screw (703) is fixedly connected to the output end of the lifting motor (702). A nut barrel (704) extending below the support cylinder (701) is threadedly connected to the first lead screw (703). A groove (705) slidably inserted with the nut barrel (704) is provided on the inner side wall of the support cylinder (701). A positioning groove (706) is formed through the top wall of the chassis (501), and the positioning groove (706) is matched with the nut barrel (704) extending out of the support cylinder (701).

6. The shock absorber upper support stretching and forming device according to claim 4 or 5, characterized in that, The centering mechanism (8) includes support boxes (801) fixedly connected to the upper end of the side wall of the punch shell (601) and evenly distributed in a circumferential manner. A second lead screw (802) is rotatably connected between the two end faces of the support box (801). A synchronous motor (803) is fixedly connected to one end face of the support box (801), and the output end of the synchronous motor (803) is fixedly connected to one end of the second lead screw (802). A nut block (804) is threadedly connected to the second lead screw (802), and the lower end of the nut block (804) is slidably inserted into the bottom wall of the support box (801). A moving block (805) located above the support box (801) is fixedly connected to the top of the nut block (804).

7. The shock absorber upper support stretching and forming device according to claim 3, characterized in that, The translation mechanism (9) includes a stand (901) fixedly connected to the lower end of the chassis (501). A driving motor (902) is fixedly connected to the upper end of the side wall of the stand (901). A transmission wheel (903) is fixedly connected to the output end of the driving motor (902). A support column (904) is fixedly connected to the edge of the other side wall of the transmission wheel (903). A first rotating plate (905) is rotatably connected to the lower end of the side wall of the stand (901) through a first rotating shaft. A limiting track (906) is fixedly connected to the middle of the first rotating plate (905), and the limiting track (906) is slidably inserted with the support column (904). A second rotating plate (907) is rotatably connected to the top of the first rotating plate (905) through a second rotating shaft. The other end of the second rotating plate (907) is rotatably connected to a moving rod (908) through a third rotating shaft. A limiting cylinder (909) fixed to the stamping system (2) is slidably sleeved on the moving rod (908).

8. The shock absorber upper support stretching and forming device according to claim 7, characterized in that, The feeding assembly (10) includes a top rod (1001) fixedly connected to the other end of the moving rod (908). An electric pump (1002) is fixedly connected to the lower end of the top rod (1001). Vacuum suction cups (1003) are oppositely arranged at the lower end of the electric pump (1002).

9. The shock absorber upper support stretching and forming device according to claim 2, characterized in that, Cylindrical cavities are provided in all four groups of concave molds (304), and the heights of the four cavities are arranged in an arithmetic progression.

10. The shock absorber upper support stretching and forming device according to claim 5, characterized in that, The limiting groove (505) consists of two sets of concentric rings, and the two sets of concentric rings are respectively located on both sides of the positioning groove (706), and the positioning groove (706) is concentric with the rings.

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