Molding surface adjustable new energy automobile part die

Abstract

The invention discloses a new energy automobile part die with an adjustable forming surface, and relates to the technical field of forming dies. The stamping die specifically comprises a lower die base and an upper die base, the lower die base is fixed to the top of a stamping table of a stamping machine through supporting legs, the upper die base is fixed to the pressure output end of the stamping machine through a connecting support, a lower female die is arranged on the inner side of the lower die base, an upper male die is arranged on the inner side of the upper die base, and the upper male die is matched with the lower female die. A first flange plate is fixed to the outer wall of the upper male die, and a second flange plate is fixed to the outer wall of the lower female die. When the forming surface is adjusted, the upper male die and the lower female die can be separated from the lower die base and the upper die base respectively by detaching the countersunk bolts, so that in the whole adjusting process, the lower die base and the upper die base belong to common parts and do not need to be manufactured through die opening, and for the upper male die and the lower female die which need to be replaced, the size and the wall thickness are relatively small; and therefore, the replacement convenience and the manufacturing cost are relatively low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forming die, in particular to a new energy automobile part die with adjustable forming surface. BACKGROUND

[0002] The body cladding, mounting bracket and other parts of new energy vehicles are sheet metal parts, which are formed by stamping. During forming, a press machine is used to apply pressure, and then the upper punch and the lower die cooperate with each other to shape the workpiece.

[0003] According to the search, the patent with the patent number CN110314968B discloses a metal shaping forming die, which comprises an upper die, a lower die and a positioning column. The lower die is provided with a die groove, and the die groove is provided with a forming step groove at the bottom. The forming step groove is provided with a first positioning hole in the middle, and the inner wall of the first positioning hole is provided with an internal thread. The upper die is located above the lower die, and the bottom of the upper die is provided with a protrusion matched with the die groove. The middle of the protrusion is provided with a second positioning hole matched with the first positioning hole.

[0004] The above-mentioned patent has the following disadvantages: it uses the whole upper die and lower die to cooperate to realize shaping, but when adjusting the forming surface, the whole upper die and lower die need to be replaced, which is not convenient because the die is heavy and needs to be opened and manufactured as a whole, and the cost of the die is high. SUMMARY

[0005] The present application aims to solve the problems in the prior art and provides a new energy automobile part die with adjustable forming surface.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: A new energy automobile part die with adjustable forming surface, comprising a lower die seat and an upper die seat, the lower die seat is fixed on the top of the stamping table of the stamping machine through supporting legs, the upper die seat is fixed on the pressure output end of the stamping machine through connecting brackets, the inner side of the lower die seat is provided with a lower die, the inner side of the upper die seat is provided with an upper punch, and the upper punch and the lower die cooperate with each other. The outer wall of the upper punch is fixed with a flange plate one, and the outer wall of the lower die is fixed with a flange plate two. The flange plate one and the flange plate two are respectively embedded and fixed on the outer wall of the upper die seat and the lower die seat through countersunk head bolts, and the inner wall of the lower die seat and the upper die seat is provided with a cavity. One side of the cavity is provided with a supporting mechanism for supporting the upper punch and the lower die.

[0007] Preferably, the supporting mechanism is composed of a matrix array of pistons one, the pistons one are sealingly connected to the inner wall of the cavity, and the other side of the pistons one is fixed with a top rod which is in contact with the upper punch and the lower die.

[0008] Further, the lower die seat and one side of the upper die seat are provided with a filling valve in communication with the cavity and used for filling and discharging air, and a pressure gauge used for detecting air pressure in the cavity.

[0009] Based on the foregoing solution, the lower die seat and the upper die seat are fixed with cylinder bodies on two sides, the transverse part of the cylinder body is in communication with the cavity, the longitudinal part of the cylinder body is internally connected with a piston two through sliding, and the top outer wall of the piston two is fixed with a contact through bolts.

[0010] In the foregoing solution, preferably, the contacts on the two sides of the lower die seat are located at the same vertical space position as the contacts on the two sides of the upper die seat.

[0011] As a further solution of the present application, the two sides of the lower die seat and the upper die seat are respectively provided with a percussion assembly and a limiting block, one limiting block is located on the same side as one group of percussion assemblies, and the other limiting block is located on the other side as the other group of percussion assemblies.

[0012] Meanwhile, the percussion assembly comprises a connecting channel formed in the side wall of the lower die seat and the upper die seat and in communication with the cavity, and a support frame fixed to the side wall of the lower die seat and the upper die seat, the inner wall of the connecting channel is connected with a piston three through sliding, the side wall of the piston three is fixed with a percussion rod, and the inner wall of the support frame is rotatably connected with a multi-protrusion cam through a connecting shaft.

[0013] As a preferred solution of the present application, the end of the percussion rod is matched with the outer wall of the multi-protrusion cam through rolling balls.

[0014] Meanwhile, the outer wall of one side of the support frame is connected with a sliding frame through a guide rod, the inner wall of the sliding frame is fixedly connected with a limiting rod, the outer wall of the connecting shaft is provided with a spiral groove, the end of the limiting rod is matched with the inner wall of the spiral groove through rolling limiting, and the outer wall of the sliding frame is fixed with a hollow contact rod in contact with the limiting block.

[0015] As a more preferred solution of the present application, the opposite side of the sliding frame and the support frame is buckled with a spring, and the support frame and the multi-protrusion cam are buckled with a volute spring.

[0016] The present application has the following beneficial effects: 1. In the present application, when the forming surface is adjusted, the upper convex die and the lower concave die can be separated from the lower die seat and the upper die seat respectively by disassembling the countersunk head bolts, so that the lower die seat and the upper die seat belong to common components in the whole adjustment process, and do not need to be opened and manufactured, while the upper convex die and the lower concave die which need to be replaced have relatively small volume and wall thickness, so that the replacement is convenient and the manufacturing cost is low.

[0017] 2. The present application, on the basis of designing relatively thin-walled small volume upper punch and lower die, through setting supporting mechanism, it can support upper punch and lower die from multiple points, so as to effectively prevent the deformation of upper punch and lower die under the action of large force during stamping, increase the use reliability of the device.

[0018] 3. The present application, by setting the contact, cylinder, piston and other components, so that the supporting force of upper punch and lower die is smaller in non-stamping state, and the supporting force of upper punch and lower die is larger in stamping state, so as to prevent the deformation of upper punch and lower die under force, and the whole pressure switching process can be realized only by the longitudinal movement of the upper die seat, which simplifies the control logic and power arrangement.

[0019] 4. The present application, by setting the limiting block and the percussion assembly, so that the force acting on the upper punch and the lower die is periodically changed during and after stamping, and the vibration is realized, on the one hand, the vibration can assist the stamping process and prevent the workpiece from rebounding to a certain extent, on the other hand, the vibration can assist the blanking and prevent the formed workpiece from being stuck outside the upper punch or the lower die. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The present application proposes a whole structure schematic diagram of a forming surface adjustable new energy automobile part die; Figure 2 The present application proposes a cooperation structure schematic diagram of the upper die seat and the upper punch, the lower die seat and the lower die of the forming surface adjustable new energy automobile part die; Figure 3 The present application proposes a supporting mechanism structure schematic diagram of the forming surface adjustable new energy automobile part die; Figure 4 The present application proposes a lower die seat, upper die seat whole section structure schematic diagram of the forming surface adjustable new energy automobile part die; Figure 5 The present application proposes a percussion assembly local structure schematic diagram of the forming surface adjustable new energy automobile part die; Figure 6 The present application proposes a percussion assembly structure schematic diagram of the forming surface adjustable new energy automobile part die; Figure 7 The present application proposes a Figure 6 The present application proposes a

[0021] In the figure: 1, lower die seat; 2, upper die seat; 3, connecting support; 4, upper male die; 5, lower female die; 6, support leg; 7, flange plate one; 8, countersunk bolt; 9, flange plate two; 10, support mechanism; 11, cavity; 12, contact; 13, filling valve; 14, pressure gauge; 15, cylinder body; 16, piston one; 17, ejector pin; 18, piston two; 19, connecting channel; 20, piston three; 21, shock rod; 22, ball; 23, support frame; 24, multi-protrusion cam; 25, connecting shaft; 26, hollow contact rod; 27, limit block; 28, volute spring; 29, slide; 30, guide rod; 31, limit rod; 32, spring; 33, helical groove. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be further described in detail below in combination with specific embodiments.

[0023] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein identical or similar reference numerals represent identical or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0024] Embodiment 1: A new energy vehicle part mold with adjustable forming surface, as shown in Figures 1-7 The lower die seat 1 is fixed to the top of the stamping table of the stamping machine through the support leg 6, the upper die seat 2 is fixed to the pressure output end of the stamping machine through the connecting support 3, the inner side of the lower die seat 1 is provided with the lower female die 5, the inner side of the upper die seat 2 is provided with the upper male die 4, and the upper male die 4 and the lower female die 5 are matched with each other.

[0025] The outer wall of the upper male die 4 is fixed with the flange plate one 7, the outer wall of the lower female die 5 is fixed with the flange plate two 9, the flange plate one 7 and the flange plate two 9 are respectively embeddedly fixed to the outer walls of the upper die seat 2 and the lower die seat 1 through the countersunk bolt 8, and the inner walls of the lower die seat 1 and the upper die seat 2 are both provided with the cavity 11, and one side of the cavity 11 is provided with the support mechanism 10 for supporting the upper male die 4 and the lower female die 5.

[0026] When the device is adjusted in the forming surface, the upper male die 4 and the lower female die 5 can be separated from the lower die seat 1 and the upper die seat 2 respectively by disassembling the countersunk bolt 8, so that the lower die seat 1 and the upper die seat 2 belong to common components in the whole adjustment process, and there is no need to open the mold for manufacturing, and the upper male die 4 and the lower female die 5 which need to be replaced have relatively small volume and wall thickness, so that the convenience of replacement and the manufacturing cost are both low.

[0027] In order to solve the support problem; as Figure 2 ,3 As shown, the support mechanism 10 is composed of a matrix array of pistons 16, which are sealingly and slidingly connected to the inner wall of the cavity 11, and the other side of the piston 16 is fixed with a top rod 17, which is in contact with the upper punch 4 and the lower die 5.

[0028] The lower die holder 1 and one side of the upper die holder 2 are provided with a filling valve 13 for communicating with the cavity 11 and for filling and discharging gas, and a pressure gauge 14 for detecting the air pressure in the cavity 11.

[0029] When the device is in use, the cavity 11 can be injected with gas through the filling valve 13, so as to exert an outward force on the piston 16 by using the gas pressure, thereby supporting the upper punch 4 and the lower die 5 through the top rod 17, and at the same time, the air pressure in the cavity 11 can be detected through the pressure gauge 14 to monitor the support force.

[0030] Based on the design of the relatively thin-walled and small-volume upper punch 4 and lower die 5, the device can support the upper punch 4 and lower die 5 through the support mechanism 10, thereby effectively preventing the upper punch 4 and lower die 5 from being deformed by a large force during stamping, and increasing the use reliability of the device.

[0031] Because the upper punch 4 and lower die 5 are subjected to a large force during stamping, a large support force is needed to prevent deformation, and during the feeding and discharging of stamping, if a large force is maintained all the time, the upper punch 4 and lower die 5 will be deformed in the opposite direction, reducing the service life, so in order to solve this problem; Figure 3 、 4 As shown, the lower die holder 1 and the upper die holder 2 are fixed with a cylinder body 15 on both sides, the transverse part of the cylinder body 15 is connected to the cavity 11, the longitudinal part of the cylinder body 15 is slidingly connected with a piston 18 inside the end, and the top outer wall of the piston 18 is fixed with a contact 12 through a bolt.

[0032] The contacts 12 on both sides of the lower die holder 1 and the contacts 12 on both sides of the upper die holder 2 are located in the same vertical space position.

[0033] When in the non-stamping state, the lower die holder 1 and the upper die holder 2 do not approach each other, at this time, the force exerted by the piston 16 on the upper punch 4 and the lower die 5 through the top rod 17 is only provided by the initial pressure of the injected gas, which is relatively small at this time, when in the stamping state, the two groups of contacts 12 are in contact and limited to each other, so that the piston 18 is contracted to the inside of the cylinder body 15, the gas in the cylinder body 15 is squeezed to the inner cavity of the cavity 11, the air pressure in the inner cavity of the cavity 11 is increased, and the force exerted by the piston 16 on the upper punch 4 and the lower die 5 through the top rod 17 is increased.

[0034] The device, by setting the contact 12, cylinder 15, piston two 18 and other components, so that in the non-punching state, the upper punch 4 and the lower die 5 receive less support force, in the punching state, the upper punch 4 and the lower die 5 receive greater support force, thereby preventing the upper punch 4 and the lower die 5 from being deformed by force, and the entire pressure switching process can be achieved only by the longitudinal movement of the upper die holder 2, simplifying the control logic and power arrangement.

[0035] In use, the embodiment can inject gas into the inner cavity of the cavity 11 through the filling valve 13, thereby applying an outward force to the piston one 16 by gas pressure, thereby supporting the upper punch 4 and the lower die 5 through the ejector rod 17, and the size of the gas pressure in the cavity 11 can be detected through the pressure gauge 14 to monitor the support force. When in the non-punching state, the lower die holder 1 and the upper die holder 2 do not approach each other, the force exerted by the piston one 16 on the upper punch 4 and the lower die 5 through the ejector rod 17 is only provided by the initial pressure of the injected gas, which is relatively small. When in the punching state, the two sets of contacts 12 contact each other to limit each other, so that the piston two 18 shrinks into the cylinder 15, the gas in the cylinder 15 is squeezed into the inner cavity of the cavity 11, the gas pressure in the inner cavity of the cavity 11 increases, and the force exerted by the piston one 16 on the upper punch 4 and the lower die 5 through the ejector rod 17 increases. When adjusting the molding surface, the upper punch 4 and the lower die 5 can be separated from the lower die holder 1 and the upper die holder 2 respectively by disassembling the countersunk head bolts 8, so that the lower die holder 1 and the upper die holder 2 are common components during the entire adjustment process, and there is no need to open the mold for manufacturing.

[0036] Embodiment 2: A molding surface adjustable new energy automobile part mold, as shown in Figures 5-7 In order to solve the demolding problem, the embodiment is improved on the basis of embodiment 1: the lower die holder 1 and the upper die holder 2 are respectively provided with a percussion assembly and a limiting block 27 on both sides, one limiting block 27 and one set of percussion assemblies are located on the same side, and the other limiting block 27 and the other set of percussion assemblies are located on the other side.

[0037] The percussion assembly includes a connecting channel 19 opened in the side wall of the lower die holder 1 and the upper die holder 2 and communicating with the cavity 11, and a support frame 23 fixed to the side wall of the lower die holder 1 and the upper die holder 2. The inner wall of the connecting channel 19 is slidably connected with a piston three 20, the side wall of the piston three 20 is fixed with a percussion rod 21, the inner wall of the support frame 23 is rotatably connected with a multi-protrusion cam 24 through a connecting shaft 25, and the end of the percussion rod 21 is rollingly matched with the outer wall of the multi-protrusion cam 24 through a ball 22.

[0038] The outer wall of one side of the support frame 23 is slidably connected to the slide 29 through a guide rod 30, and the inner wall of the slide 29 is fixedly embedded with a limit rod 31. The outer wall of the connecting shaft 25 is provided with a spiral groove 33, and the end of the limit rod 31 is rolling and limitedly engaged with the inner wall of the spiral groove 33, and the outer wall of the slide 29 is fixed with a hollow contact rod 26 that contacts and cooperates with the limit block 27.

[0039] A spring 32 is buckled on one side of the slide 29 and the support frame 23 , and a spiral spring 28 is buckled between the support frame 23 and the multi-protrusion cam 24 .

[0040] When this embodiment is in use, when the lower die base 1 and the upper die base 2 are close to each other during the stamping process, the hollow touch rod 26 contacts the limit block 27, and the hollow touch rod 26 is limited by the limit block 27 to drive the slide 29 to move along the axial direction of the guide rod 30, thereby driving the connecting shaft 25 to rotate through the limit rod 31 and the spiral groove 33. When the connecting shaft 25 rotates, it will drive the multi-protrusion cam 24 to rotate, so that the multi-protrusion shape of the multi-protrusion cam 24 is used to make the shock rod 21 intermittently squeeze the piston three 20 into the connecting channel 19, so that the air pressure in the cavity 11 increases intermittently, so that the support force of the upper punch 4 and the lower die 5 vibrates, achieving shock. At the same time, when the stamping is completed, the lower die base 1 and the upper die base 2 are in principle. At this time, the deformed spiral spring 28 and the spring 32 will rebound, which will also cause the multi-protrusion cam 24 to rotate and vibrate.

[0041] This device, by setting a limit block 27 and a shock component, can periodically change the force acting on the upper punch 4 and the lower die 5 during and after stamping to achieve vibration. On the one hand, the vibration can assist the stamping process and prevent the workpiece from rebounding to a certain extent. On the other hand, the vibration can assist in blanking and prevent the formed workpiece from being stuck on the outside of the upper punch 4 or the lower die 5.

[0042] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A new energy vehicle parts mold with adjustable molding surface, comprising a lower mold base (1) and an upper mold base (2), characterized in that: The lower die base (1) is fixed to the top of the punching table of the punching machine through the support legs (6), and the upper die base (2) is fixed to the pressure output end of the punching machine through the connecting bracket (3). A lower concave die (5) is provided on the inner side of the lower die base (1), and an upper punch (4) is provided on the inner side of the upper die base (2). The upper punch (4) and the lower concave die (5) cooperate with each other. The outer wall of the upper punch (4) is fixed with a flange plate 1 (7), and the outer wall of the lower die (5) is fixed with a flange plate 2 (9). The flange plate 1 (7) and the flange plate 2 (9) are respectively embedded and fixed to the outer walls of the upper die base (2) and the lower die base (1) by countersunk bolts (8), and the inner walls of the lower die base (1) and the upper die base (2) are both provided with a cavity (11), and a support mechanism (10) for supporting the upper punch (4) and the lower die (5) is provided on one side of the cavity (11).

2. A new energy vehicle parts mold with adjustable molding surface according to claim 1, characterized in that: The support mechanism (10) is composed of a matrix array of pistons (16), wherein the pistons (16) are sealed and slidably connected to the inner wall of the cavity (11), and a push rod (17) is fixed on the other side of the piston (16), and the push rod (17) contacts and cooperates with the upper punch (4) and the lower die (5).

3. A new energy vehicle parts mold with adjustable molding surface according to claim 2, characterized in that: One side of each of the lower die base (1) and the upper die base (2) is provided with a filling valve (13) communicating with the cavity (11) and used for filling and releasing air, and a pressure gauge (14) for detecting the air pressure in the cavity (11).

4. A new energy vehicle parts mold with adjustable molding surface according to claim 2, characterized in that: A cylinder body (15) is fixed on both sides of the lower die base (1) and the upper die base (2), the end of the transverse portion of the cylinder body (15) is connected to the cavity (11), the end of the longitudinal portion of the cylinder body (15) is slidably connected to the inside of the piston 2 (18), and the top outer wall of the piston 2 (18) is fixed with a contact (12) by bolts.

5. The mold for new energy vehicle parts with adjustable molding surface according to claim 4, characterized in that: The contacts (12) on both sides of the lower die base (1) and the contacts (12) on both sides of the upper die base (2) are located at the same vertical spatial position.

6. The mold for a new energy vehicle part with an adjustable molding surface according to claim 2, characterized in that: Shock assemblies and limit blocks (27) are respectively provided on both sides of the lower die base (1) and the upper die base (2), wherein one limit block (27) and a group of shock assemblies are located on the same side, and the other limit block (27) and the other group of shock assemblies are located on the other side.

7. The mold for a new energy vehicle part with an adjustable molding surface according to claim 6, characterized in that: The shock assembly includes a connecting channel (19) provided on the side walls of the lower die base (1) and the upper die base (2) and communicating with the cavity (11), and a support frame (23) fixed to the side walls of the lower die base (1) and the upper die base (2), wherein the inner wall of the connecting channel (19) is slidably connected to a piston three (20), a shock rod (21) is fixed to the side wall of the piston three (20), and the inner wall of the support frame (23) is rotatably connected to a multi-protrusion cam (24) via a connecting shaft (25).

8. The mold for new energy vehicle parts with adjustable molding surface according to claim 7, characterized in that: The end of the vibration rod (21) is rolling-fitted to the outer wall of the multi-protrusion cam (24) via a ball (22).

9. The mold for new energy vehicle parts with adjustable molding surface according to claim 8, characterized in that: The outer wall of one side of the support frame (23) is slidably connected to a slide (29) through a guide rod (30), the inner wall of the slide (29) is fixedly engaged with a limit rod (31), the outer wall of the connecting shaft (25) is provided with a spiral groove (33), the end of the limit rod (31) is rolling-limited and matched with the inner wall of the spiral groove (33), and the outer wall of the slide (29) is fixed with a hollow contact rod (26) that contacts and cooperates with the limit block (27).

10. The mold for new energy vehicle parts with adjustable molding surface according to claim 9, characterized in that: A spring (32) is buckled on the opposite side of the slide (29) and the support frame (23), and a scroll spring (28) is buckled between the support frame (23) and the multi-protrusion cam (24).

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