Efficient forming and processing device for energy-absorbing block of automobile bumper

Abstract

The invention discloses an automobile bumper energy absorption block efficient forming machining device which comprises a polygonal pressing column and a polygonal top column, the polygonal pressing column and the polygonal top column are distributed up and down, a plurality of arc-shaped plate molds are obliquely arranged on the outer side of the polygonal pressing column, the arc-shaped plate molds are annularly distributed, and a plurality of arc-shaped plate molds are arranged on the outer side of the polygonal pressing column. A flat plate pressing die is arranged at the end, close to the polygonal pressing column, of the arc-shaped plate die and is perpendicular to the side wall of the polygonal pressing column, a top plate pressing die is arranged at the end, away from the polygonal pressing column, of the arc-shaped plate die, a through opening is formed in the outer side wall of the polygonal top column, and a turnover plate die is rotationally arranged in the through opening. The energy absorption block is processed by adopting a one-time forming processing mode, so that the process steps can be effectively simplified, the working procedures can be shortened, the working efficiency can be improved, the cost investment of cooperative operation of a plurality of devices can be saved, the personnel demand can be effectively reduced, and the manpower can be saved.

Description

Technical Field

[0001] The invention relates to the technical field of forming processing, in particular to a high-efficiency forming processing device for an automobile bumper energy-absorbing block. Background Art

[0002] As we all know, the car bumper energy-absorbing block is a protective structure used to absorb the kinetic energy of the vehicle during a collision. It can effectively reduce the damage to the driver caused by the vehicle's collision kinetic energy and play a buffering role.

[0003] The shape of the energy absorbing block is generally as follows Fig. 9 The structure shown has one end fixed on the bumper and the other end fixed on the vehicle body. Usually, the energy absorbing block is provided with one end of an outer extending edge fixed on the vehicle body. The shape of the energy absorbing block is cylindrical. During processing, each edge of the cross-shaped profile is subjected to stamping deformation treatment so that each edge is deformed into a plurality of groove-shaped structures. Each edge is then bent so that the plurality of edges are folded into a cylindrical shape. The outer end portion of each edge is then bent into a right angle, thereby completing the forming processing of the energy absorbing block. The two adjacent edges are then welded by a welding gun, thereby completing the processing of the energy absorbing block.

[0004] In the process of forming the energy absorbing block, since the profile needs to be processed through multiple steps, multiple equipments are needed to cooperate in the forming process. The process of energy absorbing block processing is long, the process steps are complicated, the work efficiency is low, the equipment cost investment is large, and more workers are needed to cooperate in the operation, which consumes more manpower and cannot be realized in a one-time forming process. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a highly efficient forming and processing device for an automobile bumper energy absorbing block.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: An efficient forming and processing device for an automobile bumper energy-absorbing block comprises a polygonal pressure column and a polygonal top column, wherein the polygonal pressure column and the polygonal top column are distributed up and down, a plurality of arc-shaped plate molds are obliquely arranged on the outer side of the polygonal pressure column, and the plurality of arc-shaped plate molds are distributed in a ring shape, a flat plate mold is arranged at the end of the arc-shaped plate mold close to the polygonal pressure column, and the flat plate mold is perpendicular to the side wall of the polygonal pressure column, a top plate mold is arranged at the end of the arc-shaped plate mold away from the polygonal pressure column, a through opening is opened on the outer side wall of the polygonal top column, and a flip plate mold is rotatably arranged in the through opening; Wherein, a plurality of grooves are arranged on the outer wall of the arc-shaped plate formwork and the outer wall of the polygonal top column.

[0007] Furthermore, the grooves on the arc-shaped plate formwork and the grooves on the polygonal top column are both inclined, and the inclination directions of the grooves in the upper area and the lower area of ​​the arc-shaped plate formwork are opposite, and the inclination directions of the grooves in the upper area and the lower area of ​​the polygonal top column are opposite, and the grooves on multiple outer walls of the polygonal top column are in a circular inclined state.

[0008] Furthermore, a connecting plate is provided on the inner wall of the arc-shaped plate formwork, an arc-shaped slider is provided at the outer end of the connecting plate, arc-shaped slide groove plates are slidably provided at both ends of the arc-shaped slider, and a cylinder is rotatably provided at the top of the arc-shaped slider.

[0009] Further, the connecting plate and the arc-shaped slider are rotatably connected, a first leaf spring is connected between the connecting plate and the arc-shaped slider, a top pressure plate is fixed on the arc-shaped slider, an outer end of the top pressure plate contacts an outer side wall of the connecting plate, and an axis of a rotationally connected position of the connecting plate and the arc-shaped slider coincides with a center of a circle of the arc-shaped plate mold; A sliding sleeve is provided on the outer wall of the polygonal pressure column, a plurality of vertical plates are fixed on the bottom of the sliding sleeve, the ends of the arc-shaped slide slot plates are fixed on the vertical plates, and the fixed end of the cylinder is rotatably mounted on the bottom of the sliding sleeve.

[0010] Furthermore, it also includes a base, which is located at the bottom of the polygonal top column, and a fixing cavity is opened inside the base, and the bottom of the polygonal top column is slidably inserted into the fixing cavity; The polygonal top column is hollow inside, and the bottom of the polygonal top column is open. A fixing seat is fixed at the bottom of the inner wall of the fixing cavity. The top of the fixing seat is slidably inserted into the polygonal top column. A polygonal column is fixed on the top of the fixing seat. Teeth are arranged on the outer wall of the polygonal column. A plurality of gears are meshed on the teeth of the polygonal column. The plurality of gears are distributed in a ring shape. The gears are rotatably installed on the inner wall of the polygonal top column. A tooth row is fixed on the inner wall of the flip plate mold, and the tooth row is meshed and connected with the gears. A clamping structure is arranged on the polygonal top column.

[0011] Furthermore, the locking structure includes a plurality of U-shaped frames relatively arranged in the polygonal top column, the U-shaped frames are placed vertically, both ends of the U-shaped frames horizontally pass through the polygonal top column and extend out, the U-shaped frames slide relative to the polygonal top column, a plurality of guide plates are horizontally arranged in the polygonal top column, the guide plates pass through the U-shaped frames and are slidably connected, and a plurality of second leaf springs are connected between the plurality of U-shaped frames.

[0012] Furthermore, a plurality of third leaf springs are provided on the inner wall of the fixed cavity, the top of the third leaf spring is fixed to the bottom of the polygonal top column, and a plurality of clamping plates are provided on the outer wall of the polygonal top column inside the fixed cavity.

[0013] Furthermore, a right-angled round rod is provided between two adjacent arc-shaped sliders on the polygonal pressure column, the right-angled round rod is horizontal, the end of the right-angled round rod is slidably inserted into the arc-shaped slider, and multiple arc-shaped sliders are connected by multiple right-angled round rods.

[0014] Furthermore, the polygonal pressure column is hollow inside, a notch is provided on the side wall of the polygonal pressure column, a moving block is slidably provided inside the polygonal pressure column, an outer wall of the moving block extends to the outside of the polygonal pressure column through the notch, and the moving block is connected to the sliding sleeve, a motor is fixed inside the polygonal pressure column, a lead screw is provided at the output end of the motor, the lead screw passes through the moving block and is threadedly connected; An oil cylinder is arranged on the top of the polygonal pressure column.

[0015] Furthermore, a constant pressure air hole is opened in the middle of the polygonal column, and the bottom of the constant pressure air hole passes through the fixing seat and the base and extends to the bottom of the base.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by adopting a one-time molding processing method to process the energy absorbing block, the process steps can be effectively simplified, the process can be shortened, the work efficiency can be improved, and the cost investment required for the coordinated operation of multiple equipments can be saved, while the personnel demand can be effectively reduced, saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a front structural schematic diagram of the present invention; Figure 2 yes Figure 1 An enlarged schematic diagram of the middle sliding sleeve and the structure thereon; Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of the middle polygonal pressure column; Figure 4 yes Figure 2 Schematic diagram of the enlarged structure of the middle arc plate formwork; Figure 5 yes Figure 4 Schematic diagram of the rear structure of the middle arc chute plate; Figure 6 yes Figure 2 Schematic diagram of the enlarged structure of the middle arc plate mold from an oblique view; Figure 7 yes Figure 1 A schematic diagram of a partially enlarged cross-section of the middle polygonal top column; Figure 8 yes Figure 7 Schematic diagram of the oblique structure of the middle top pressure plate; Fig. 9It is a structural schematic diagram of the product processed by the present invention; Markings in the attached drawings: 1. polygonal pressure column; 2. arc plate mold; 3. flat pressure plate mold; 4. top pressure plate mold; 5. polygonal top column; 6. flip plate mold; 7. connecting plate; 8. arc slider; 9. arc slide plate; 10. cylinder; 11. first leaf spring; 12. top pressure plate; 13. sliding sleeve; 14. vertical plate; 15. base; 16. fixed cavity; 17. fixed seat; 18. polygonal column; 19. gear; 20. gear row; 21. U-shaped frame; 22. guide plate; 23. second leaf spring; 24. third leaf spring; 25. clamping plate; 26. right-angle round rod; 27. moving block; 28. motor; 29. ​​screw; 30. cylinder; 31. constant pressure air hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0022] like Figures 1 to 6 As shown, the efficient forming and processing device of the automobile bumper energy absorbing block of the present invention comprises a polygonal pressure column 1 and a polygonal top column 5, wherein the polygonal pressure column 1 and the polygonal top column 5 are distributed up and down, and a plurality of arc-shaped plate molds 2 are obliquely arranged on the outer side of the polygonal pressure column 1, and the plurality of arc-shaped plate molds 2 are distributed in a ring shape, and a flat pressing plate mold 3 is arranged at the end of the arc-shaped plate mold 2 close to the polygonal pressure column 1, and the flat pressing plate mold 3 is perpendicular to the side wall of the polygonal pressure column 1, and a top pressing plate mold 4 is arranged at the end of the arc-shaped plate mold 2 away from the polygonal pressure column 1, and a through opening is opened on the outer side wall of the polygonal top column 5, and a flip plate mold 6 is rotatably arranged in the through opening; Therein, a plurality of grooves are arranged on the outer wall of the arc-shaped plate formwork 2 and the outer wall of the polygonal top column 5 .

[0023] Specifically, the number of the arc-shaped formworks 2 is the same as the number of sides of the energy-absorbing block after forming, the number of sides of the polygonal top column 5 is the same as the number of the arc-shaped formworks 2, the outer walls of the flat pressure formwork 3 and the top pressure formwork 4 are tangent to the outer walls of the arc-shaped formwork 2, the grooves on the polygonal top column 5 are located above the flip formwork 6, and the positions and numbers of the grooves on the polygonal top column 5 and the grooves on the arc-shaped formwork 2 correspond. By setting a plurality of grooves, the outer wall shapes of the arc-shaped formwork 2 and the outer wall shapes of the polygonal top column 5 can be both wavy.

[0024] The bottom of the polygonal pressure column 1 and the top of the polygonal top column 5 correspond to each other. The flat pressing plate mold 3 can bend one side of the profile downward, so that multiple flat pressing plate molds 3 can bend multiple sides on the profile downward synchronously, and the multiple sides after bending can form a cylindrical shape. The arc plate mold 2 can roll the profile in the groove area on the polygonal top column 5, so that this part of the profile is deformed into a wavy shape, realizing the wavy processing of the profile, and the edge on the profile can be conveniently deformed from top to bottom by rolling, avoiding the profile being squeezed and pulled at multiple positions and causing it to break when the wavy shape is processed by plane extrusion, facilitating the gradual deformation process and protecting the profile. After the arc plate mold 2 is rolled, the side wall of the top pressing plate mold 4 is in a vertical state and contacts the outer side wall of the polygonal top column 5, and the flip plate mold 6 is flipped outward, so that the profile on the flip plate mold 6 is flipped outward, and the profile is flipped to the bottom of the top pressing plate mold 4. At this time, the flip plate mold 6 and the top pressing plate mold 4 perform right-angle bending processing on the profile.

[0025] In actual use, the profile is first placed on the top of the polygonal top column 5, and the polygonal pressure column 1, the arc plate formwork 2, the flat pressure plate formwork 3 and the top pressure plate formwork 4 are moved downward synchronously, and the bottom of the polygonal pressure column 1 is first squeezed and contacted with the profile on the top of the polygonal top column 5, so as to fix the profile, and then the arc plate formwork 2 is flipped downward, at this time, the arc plate formwork 2, the flat pressure plate formwork 3 and the top pressure plate formwork 4 are flipped synchronously, and the flipping center of the arc plate formwork 2, the flat pressure plate formwork 3 and the top pressure plate formwork 4 is located at the outer end of the flat pressure plate formwork 3, so that the flat pressure plate formwork 3 performs a right-angle flipping movement, and the flat pressure plate formwork 3 bends one side of the profile downward, and multiple sides of the profile are bent downward synchronously to form a cylindrical shape. When the flat pressure plate formwork 3 is rotated from a horizontal state to a vertical state, the wavy end of the arc plate formwork 2 and the flat pressure plate formwork 3 The wavy end of the connecting position of the The center of the curved plate mold 2 is used as a reference to push the curved plate mold 2 to move vertically downward. At this time, due to the engagement of the wavy shape on the curved plate mold 2 with the wavy shape on the polygonal top column 5, the curved plate mold 2 rolls on the outer wall of the polygonal top column 5, and the center of the curved plate mold 2 keeps moving vertically, so that the curved plate mold 2 squeezes the profile into the wavy shape on the polygonal top column 5, thereby realizing the rolling forming processing of one side of the profile. When the outer end of the curved plate mold 2 contacts the outer side wall of the polygonal top column 5, the top pressing plate mold 4 rotates to a vertical state, and the outer side wall of the top pressing plate mold 4 fits with the outer side wall of the polygonal top column 5, and the flip plate mold 6 is rotated. The flip plate mold 6 pushes the profile on its outer side wall to flip at a right angle. The top pressing plate mold 4 and the flip plate mold 6 can perform right-angle deformation processing on the profile. At this time, the profile forming processing is completed, thereby realizing the one-time forming processing method of the energy absorbing block.

[0026] By adopting a one-time forming process to process the energy absorbing blocks, the process steps can be effectively simplified, the process can be shortened, work efficiency can be improved, and the cost investment required for the coordinated operation of multiple equipment can be saved. At the same time, the number of personnel required can be effectively reduced, saving manpower.

[0027] Since the profile itself has a small amount of elasticity, when each side of the formed profile undergoes wavy deformation, the profile and the wavy area on the polygonal top column 5 can be separated by moving each side outward, thereby facilitating the removal of the profile from the polygonal top column 5.

[0028] like Figure 6 As shown, as a preferred embodiment of the above embodiment, the groove on the arc-shaped formwork 2 and the groove on the polygonal top column 5 are both inclined, and the inclination directions of the grooves in the upper area and the lower area of ​​the arc-shaped formwork 2 are opposite, and the inclination directions of the grooves in the upper area and the lower area of ​​the polygonal top column 5 are opposite, and the grooves on multiple outer walls of the polygonal top column 5 are in a circular inclined state.

[0029] Specifically, the shape of the groove on the polygonal top column 5 is the same as the shape of the groove on the arc-shaped plate mold 2. Since the inclination directions of the grooves in the upper and lower areas of the polygonal top column 5 are opposite, the grooves on multiple outer walls of the polygonal top column 5 are in a circular inclination state, which can conveniently make the wave shape on one side of the processed profile in an inclined state, and the inclination directions on the upper and lower sides of the wave shape are opposite. Therefore, when the energy absorbing block is impacted and deformed, the middle part of the energy absorbing block is twisted first, and the impact force can be initially buffered by this twisted state. After that, the energy absorbing block in the twisted state is compressed again, and the secondary buffering treatment of the impact force is achieved through compression, thereby improving the buffering performance of the processed energy absorbing block, and on the premise of ensuring the specified horizontal support strength of the energy absorbing block, it is convenient to make it deform quickly. Compared with traditional straight-cylinder energy absorbing blocks, the energy absorbing blocks produced by the present invention are easier to deform, thereby effectively reducing the inertial damage to the human body when the kinetic energy changes rapidly, and improving safety performance.

[0030] like Figure 5 As shown, as a preferred embodiment of the above embodiment, a connecting plate 7 is provided on the inner wall of the arc-shaped formwork 2, an arc-shaped slider 8 is provided at the outer end of the connecting plate 7, arc-shaped slide plates 9 are slidably provided at both ends of the arc-shaped slider 8, and a cylinder 10 is rotatably provided at the top of the arc-shaped slider 8.

[0031] Specifically, the center of the arc-shaped slide plate 9 coincides with the outer end position of the flat-pressing plate mold 3. When the cylinder 10 is extended, the cylinder 10 pushes the arc-shaped slider 8 to slide in the arc-shaped slide plate 9. The arc-shaped slider 8 drives the arc-shaped plate mold 2, the flat-pressing plate mold 3 and the top-pressing plate mold 4 to flip synchronously through the connecting plate 7. At this time, the flat-pressing plate mold 3 rotates from a horizontal state to a vertical state, so that the flat-pressing plate mold 3 bends one side of the profile downward, which facilitates the downward bending of multiple sides of the profile to form a cylindrical shape.

[0032] like Figures 2 to 5 As shown, as a preferred embodiment of the above, the connecting plate 7 and the arc-shaped slider 8 are rotatably connected, a first leaf spring 11 is connected between the connecting plate 7 and the arc-shaped slider 8, a top pressure plate 12 is fixed on the arc-shaped slider 8, the outer end of the top pressure plate 12 is in contact with the outer side wall of the connecting plate 7, and the axis of the rotational connection position of the connecting plate 7 and the arc-shaped slider 8 coincides with the center of the arc-shaped plate mold 2; A sliding sleeve 13 is provided on the outer wall of the polygonal pressure column 1 , a plurality of vertical plates 14 are fixed to the bottom of the sliding sleeve 13 , the ends of the arc-shaped slide plate 9 are fixed on the vertical plates 14 , and the fixed end of the cylinder 10 is rotatably mounted on the bottom of the sliding sleeve 13 .

[0033] Specifically, the first leaf spring 11 generates an elastic thrust on the connecting plate 7, so that the connecting plate 7 is tightly attached to the top pressure plate 12, and the connecting plate 7, the arc-shaped slider 8, the first leaf spring 11 and the top pressure plate 12 remain in a fixed state. When the flat pressure plate mold 3 is flipped from a horizontal state to a vertical state, the arc-shaped slider 8 moves to the outer end of the arc-shaped slide groove plate 9, and the arc-shaped slide groove plate 9 limits the position of the arc-shaped slider 8. At this time, the groove on the arc plate mold 2 is buckled with the groove on the outer wall of the polygonal top column 5, pushing the sliding sleeve 13 to move downward, and the sliding sleeve 13 drives the vertical plate 14 to move downward synchronously, so that the arc plate mold 2, The connecting plate 7, the arc-shaped slider 8, the arc-shaped slide plate 9, the cylinder 10, the first leaf spring 11 and the top pressure plate 12 move synchronously. As the arc-shaped plate mold 2 and the polygonal top column 5 are buckled together, the arc-shaped plate mold 2 rolls on the outer wall of the polygonal top column 5. The arc-shaped plate mold 2 drives the connecting plate 7 to overcome the elastic thrust of the first leaf spring 11 and rotate on the arc-shaped slider 8. The rotation connection position of the connecting plate 7 and the arc-shaped slider 8 moves vertically downward, thereby realizing the flipping and rolling movements of the arc-shaped plate mold 2, the flat pressure plate mold 3 and the top pressure plate mold 4, and realizing the linkage forming processing method of bending and rolling one side of the profile.

[0034] like Figures 7 and 8 As shown, as a preferred embodiment of the above embodiment, it further includes a base 15, which is located at the bottom of the polygonal top column 5. A fixing cavity 16 is provided inside the base 15, and the bottom of the polygonal top column 5 is slidably inserted into the fixing cavity 16; The polygonal top column 5 is hollow inside, and the bottom of the polygonal top column 5 is open. A fixing seat 17 is fixed to the bottom of the inner wall of the fixing cavity 16. The top of the fixing seat 17 is slidably inserted into the polygonal top column 5. A polygonal column 18 is fixed to the top of the fixing seat 17. Teeth are arranged on the outer wall of the polygonal column 18. A plurality of gears 19 are meshed on the teeth of the polygonal column 18. The plurality of gears 19 are distributed in a ring shape. The gears 19 are rotatably mounted on the inner side wall of the polygonal top column 5. A tooth row 20 is fixed on the inner side wall of the flip plate mold 6. The tooth row 20 is meshed and connected with the gear 19. A locking structure is provided on the polygonal top column 5 .

[0035] Specifically, when the flat pressing plate mold 3 and the arc plate mold 2 process the profile, the position of the polygonal top column 5 is fixed by the locking structure. When the side wall of the top pressing plate mold 4 fits with the side wall of the polygonal top column 5, the locking structure is unlocked, and the polygonal pressing column 1 continues to be pushed downward. The polygonal pressing column 1 pushes the polygonal top column 5 to move downward, and the fixed seat 17 moves relative to the polygonal top column 5. The fixed seat 17 pushes the polygonal column 18 and the gear 19 to move relative to each other. The polygonal column 18 drives the gear 19 to rotate, and the gear 19 drives the gear row 20 to move. The gear row 20 pushes the flip plate mold 6 to rotate outward, thereby realizing the right-angle deformation processing of the profile by the flip plate mold 6 and the top pressing plate mold 4, and this process does not require other power supply, and the purpose of flipping the flip plate mold 6 to the outside can be achieved through the mechanical structure, which simplifies the structural method, reduces cost investment, and simplifies the control method.

[0036] like Figure 7 As shown, as a preferred embodiment of the above embodiment, the locking structure includes a plurality of U-shaped frames 21 relatively arranged in the polygonal top column 5, the U-shaped frames 21 are placed vertically, both ends of the U-shaped frames 21 horizontally pass through the polygonal top column 5 and extend out, the U-shaped frames 21 and the polygonal top column 5 slide relative to each other, a plurality of guide plates 22 are horizontally arranged in the polygonal top column 5, the guide plates 22 pass through the U-shaped frames 21 and are slidably connected, and a plurality of second leaf springs 23 are connected between the plurality of U-shaped frames 21.

[0037] Specifically, the end position of the upper side of the U-shaped frame 21 corresponds to the position of the top pressure plate mold 4, and the end of the lower side of the U-shaped frame 21 contacts the top of the base 15. When the side wall of the top pressure plate mold 4 is close to and fits the outer wall of the polygonal top column 5, the side wall of the top pressure plate mold 4 pushes the U-shaped frame 21 to move toward the inside of the polygonal top column 5. At this time, the end of the bottom of the U-shaped frame 21 gradually moves into the polygonal top column 5, and the U-shaped frame 21 stops the positioning work of the base 15 and the polygonal top column 5. The second leaf spring 23 undergoes elastic deformation, and the guide plate 22 can support and guide the U-shaped frame 21.

[0038] like Figure 8 As shown, as a preferred embodiment of the above embodiment, a plurality of third leaf springs 24 are provided on the inner wall of the fixed cavity 16, the top of the third leaf spring 24 is fixed to the bottom of the polygonal top column 5, and a plurality of clamping plates 25 are provided on the outer wall of the polygonal top column 5 inside the fixed cavity 16.

[0039] Specifically, the clamping plate 25 can clamp the polygonal top column 5 in the upward moving position on the base 15, and by setting the clamping plate 25, the relative positions of the polygonal column 18 and the gear 19 can be positioned at the same time, thereby achieving the purpose of positioning the position of the flip mold 6. The third leaf spring 24 generates an elastic thrust on the polygonal top column 5, thereby facilitating the resetting of the polygonal top column 5.

[0040] like Figure 2 As shown, as a preferred embodiment of the above embodiment, a right-angled round rod 26 is provided between two adjacent arc-shaped sliders 8 on the polygonal pressure column 1, the right-angled round rod 26 is horizontal, and the end of the right-angled round rod 26 is slidably inserted into the arc-shaped slider 8, and multiple arc-shaped sliders 8 are connected by multiple right-angled round rods 26.

[0041] Specifically, by setting up multiple right-angle round rods 26, multiple arc-shaped sliders 8 can be easily kept on the same horizontal plane during movement, thereby improving the synchronization of movement of multiple arc-shaped plate molds 2 and avoiding abnormal deformation of the profile due to differences in deformation pressure of the profile.

[0042] like Figure 3 As shown, as a preferred embodiment of the above, the polygonal pressure column 1 is hollow inside, a notch is provided on the side wall of the polygonal pressure column 1, a moving block 27 is slidably provided inside the polygonal pressure column 1, the outer wall of the moving block 27 extends to the outside of the polygonal pressure column 1 through the notch, and the moving block 27 is connected to the sliding sleeve 13, a motor 28 is fixed inside the polygonal pressure column 1, a screw 29 is provided at the output end of the motor 28, and the screw 29 passes through the moving block 27 and is threadedly connected; An oil cylinder 30 is disposed on the top of the polygonal pressure column 1 .

[0043] Specifically, the motor 28 can drive the moving block 27 to move up and down through the lead screw 29, and the moving block 27 can drive the sleeve 13 to move up and down, thereby driving the equipment to operate, and the polygonal pressure column 1 can be pushed to move up and down through the oil cylinder 30.

[0044] like Figure 8 As shown, as a preferred embodiment of the above embodiment, a constant pressure air hole 31 is opened in the middle of the polygonal column 18 , and the bottom of the constant pressure air hole 31 passes through the fixing seat 17 and the base 15 and extends to the bottom of the base 15 .

[0045] Specifically, by providing the constant pressure air hole 31, the air inside the polygonal top column 5 can be kept in communication with the outside air, and the inside of the polygonal top column 5 can be kept at a normal pressure, so as to avoid changes in air pressure caused by changes in the size of the internal space of the polygonal top column 5 when the fixing seat 17 moves. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An efficient forming and processing device for automobile bumper energy absorbing blocks, characterized in that: It comprises a polygonal pressure column (1) and a polygonal top column (5), wherein the polygonal pressure column (1) and the polygonal top column (5) are arranged vertically, and a plurality of arc-shaped plate molds (2) are arranged obliquely on the outer side of the polygonal pressure column (1), and the plurality of arc-shaped plate molds (2) are arranged in a ring shape, and a flat plate mold (3) is arranged at the end of the arc-shaped plate mold (2) close to the polygonal pressure column (1), and the flat plate mold (3) is perpendicular to the side wall of the polygonal pressure column (1), and a top plate mold (4) is arranged at the end of the arc-shaped plate mold (2) away from the polygonal pressure column (1), and a through opening is opened on the outer side wall of the polygonal top column (5), and a flip plate mold (6) is arranged in the through opening for rotation; Wherein, a plurality of grooves are provided on the outer wall of the arc-shaped plate formwork (2) and the outer wall of the polygonal top column (5).

2. The efficient forming and processing device for the energy-absorbing block of an automobile bumper according to claim 1, characterized in that: The grooves on the arc-shaped plate formwork (2) and the grooves on the polygonal top column (5) are both inclined, and the grooves in the upper and lower regions of the arc-shaped plate formwork (2) are inclined in opposite directions, while the grooves in the upper and lower regions of the polygonal top column (5) are inclined in opposite directions, and the grooves on multiple outer side walls of the polygonal top column (5) are in a circular inclined state.

3. The efficient forming and processing device for the energy-absorbing block of the automobile bumper according to claim 2, characterized in that: A connecting plate (7) is provided on the inner wall of the arc-shaped plate formwork (2), an arc-shaped slider (8) is provided at the outer end of the connecting plate (7), arc-shaped slide plates (9) are slidably provided at both ends of the arc-shaped slider (8), and a cylinder (10) is rotatably provided at the top of the arc-shaped slider (8).

4. The efficient forming and processing device for the energy-absorbing block of an automobile bumper according to claim 3, characterized in that: The connecting plate (7) and the arc-shaped slider (8) are rotatably connected, a first leaf spring (11) is connected between the connecting plate (7) and the arc-shaped slider (8), a top pressure plate (12) is fixed on the arc-shaped slider (8), the outer end of the top pressure plate (12) contacts the outer side wall of the connecting plate (7), and the axis of the rotational connection position of the connecting plate (7) and the arc-shaped slider (8) coincides with the center of the arc-shaped plate mold (2); A sliding sleeve (13) is provided on the outer wall of the polygonal pressure column (1), a plurality of vertical plates (14) are fixed to the bottom of the sliding sleeve (13), the ends of the arc-shaped slide plate (9) are fixed to the vertical plates (14), and the fixed end of the cylinder (10) is rotatably mounted on the bottom of the sliding sleeve (13).

5. The efficient forming and processing device for the energy-absorbing block of the automobile bumper according to claim 4, characterized in that: It also includes a base (15), the base (15) is located at the bottom of the polygonal top column (5), a fixing cavity (16) is provided inside the base (15), and the bottom of the polygonal top column (5) is slidably inserted into the fixing cavity (16); The polygonal top column (5) is hollow inside and has an open bottom. A fixing seat (17) is fixed to the bottom of the inner wall of the fixing cavity (16). The top of the fixing seat (17) is slidably inserted into the polygonal top column (5). A polygonal column (18) is fixed to the top of the fixing seat (17). Teeth are arranged on the outer wall of the polygonal column (18). A plurality of gears (19) are meshed on the teeth of the polygonal column (18). The plurality of gears (19) are distributed in a ring shape. The gears (19) are rotatably mounted on the inner wall of the polygonal top column (5). A tooth row (20) is fixed to the inner wall of the flip plate mold (6). The tooth row (20) is meshed and connected with the gear (19). A locking structure is provided on the polygonal top column (5).

6. The efficient forming and processing device for the energy-absorbing block of the automobile bumper according to claim 5, characterized in that: The positioning structure comprises a plurality of U-shaped frames (21) arranged relatively to each other in the polygonal top column (5); the U-shaped frames (21) are placed vertically; both ends of the U-shaped frames (21) pass horizontally through the polygonal top column (5) and extend out; the U-shaped frames (21) and the polygonal top column (5) slide relatively to each other; a plurality of guide plates (22) are arranged horizontally in the polygonal top column (5); the guide plates (22) pass through the U-shaped frames (21) and are slidably connected; and a plurality of second leaf springs (23) are connected between the plurality of U-shaped frames (21).

7. The efficient forming and processing device for the energy-absorbing block of the automobile bumper according to claim 6, characterized in that: A plurality of third leaf springs (24) are provided on the inner wall of the fixed cavity (16), the top of the third leaf spring (24) is fixed to the bottom of the polygonal top column (5), and a plurality of clamping plates (25) are provided on the outer wall of the polygonal top column (5) inside the fixed cavity (16).

8. The efficient forming and processing device for the energy-absorbing block of an automobile bumper according to claim 7, characterized in that: A right-angled round rod (26) is provided between two adjacent arc-shaped sliders (8) on the polygonal pressure column (1). The right-angled round rod (26) is horizontal, and the end of the right-angled round rod (26) is slidably inserted into the arc-shaped slider (8). The plurality of arc-shaped sliders (8) are connected via the plurality of right-angled round rods (26).

9. The efficient forming and processing device for the energy-absorbing block of an automobile bumper according to claim 8, characterized in that: The polygonal pressure column (1) is hollow inside, and a notch is provided on the side wall of the polygonal pressure column (1). A moving block (27) is slidably provided inside the polygonal pressure column (1), and the outer wall of the moving block (27) extends to the outside of the polygonal pressure column (1) through the notch, and the moving block (27) is connected to the sliding sleeve (13). A motor (28) is fixed inside the polygonal pressure column (1), and a lead screw (29) is provided at the output end of the motor (28), and the lead screw (29) passes through the moving block (27) and is threadedly connected; an oil cylinder (30) is provided at the top of the polygonal pressure column (1).

10. The efficient forming and processing device for the energy-absorbing block of the automobile bumper according to claim 9, characterized in that: A constant pressure air hole (31) is provided in the middle of the polygonal column (18), and the bottom of the constant pressure air hole (31) passes through the fixing seat (17) and the base (15) and extends to the bottom of the base (15).

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