Die structure applied to fixing ring

Abstract

The utility model discloses a die structure applied to a fixing ring, which relates to the technical field of die stamping manufacturing and comprises an upper die, a lower die and a lower die. The upper male die is located in the upper male die hole, and an upper male die forming face is arranged on the lower side of the outer side wall of the upper male die. A sliding block cavity and a vertical lower top die hole are sequentially formed in the lower die from top to bottom; a sliding block inclined surface is arranged at the position, facing the guide inclined surface, of the lower sliding block, and a lower sliding block forming surface is arranged at the position, facing the upper male die, of the lower sliding block; the lower top die is positioned in the lower top die hole; a workpiece can be quickly machined into a fixing ring, the first outer forming face of the lower sliding block forming face corresponds to an upper side vertical ring part of the workpiece, the second outer forming face corresponds to a convex ring part of the workpiece for forming, the top face of the lower top die corresponds to a lower side horizontal ring part of the workpiece for forming, and particularly convex ring parts with various section shapes are machined. The finished product effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to die stamping manufacturing technical field especially a kind of die structure applied to fixed ring. BACKGROUND

[0002] For some fixed ring components, its main body is annular, and the annular structure has a convex ring structure. Because the convex ring structure of such fixed ring components is irregular in shape, it is not easy to form during die stamping, and it is also not easy to demold after stamping is completed. More sliders are often needed to cooperate with movement to complete the stamping and demolding process, resulting in a complex die structure, which not only increases manufacturing cost, but also affects work efficiency. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a die structure applied to fixed ring.

[0004] According to the die structure applied to fixed ring of the utility model embodiment, the upper die is provided with a vertical upper convex die hole; an upper convex die is located in the upper convex die hole, and the lower side of the outer side wall of the upper convex die is provided with an upper convex die forming surface corresponding to the inner side wall position of the workpiece; a lower die is provided with a slider cavity and a vertical lower ejector hole from top to bottom; a guide slope is arranged on the slider cavity; the guide slope is inclined along the direction from the lower side of the inner side of the lower die to the upper side of the outer side of the lower die; a lower slider is located on the slider cavity; the position of the lower slider facing the guide slope is provided with a slider slope; the position of the lower slider facing the upper convex die is provided with a lower slider forming surface; the lower slider forming surface includes a first outer forming surface on the upper side and a second outer forming surface on the lower side; the first outer forming surface corresponds to the upper vertical ring part of the workpiece; and the second outer forming surface corresponds to the convex ring part of the workpiece.

[0005] According to some embodiments of the utility model, a vertical guide plate is arranged on the outer side wall of the upper convex die, a guide block is arranged on the inner side wall of the upper convex die hole, and the guide block can guide the movement of the guide block.

[0006] According to some embodiments of the utility model, a limiting column is arranged on the upper die, a connecting disc is arranged on the upper side of the upper convex die, and the limiting column can abut against the edge position on the lower side of the connecting disc.

[0007] According to some embodiments of the utility model, a pressing edge insert is arranged on the lower side of the upper die, the pressing edge insert surrounds the upper convex die, a lower die insert is arranged on the upper side of the lower slider, and the lower die insert can abut against the pressing edge insert.

[0008] According to some embodiments of the utility model, the lower side of the upper die is provided with a pressure regulating hole, the pressure regulating hole surrounds the upper punch, and a pressure regulating pad is installed in the pressure regulating hole through a screw.

[0009] According to some embodiments of the utility model, the upper side of the outer wall of the lower top die is provided with a concave lower top die step position, the lower top die step position surrounds the top surface, and the lower top die step position can support the lower sliding block.

[0010] According to some embodiments of the utility model, a guide plate seat is arranged on the sliding block cavity, the guide inclined surface is a detachable inclined guide plate structure, and the guide inclined surface is located on the guide plate seat.

[0011] According to some embodiments of the utility model, an upper die water injection channel is arranged in the upper die, an upper bulging water outlet hole is arranged on the inner side wall of the upper punch hole and serves as a water outlet of the upper die water injection channel, a lower die water injection channel is arranged in the lower die, a lower bulging water outlet hole is arranged on the inner side wall of the lower top die hole and serves as a water outlet of the lower die water injection channel, and the upper die water injection channel and the lower die water injection channel are both externally connected to a pressurized water source.

[0012] According to some embodiments of the utility model, the inner side wall of the upper punch hole is provided with an upper die sealing groove, the inner side wall of the lower top die hole is provided with a lower die sealing groove, and a sealing ring is installed on the upper die sealing groove and the lower die sealing groove.

[0013] According to some embodiments of the utility model, the upper side of the lower top die is provided with an intermediate surface, the top surface surrounds the intermediate surface, and a lower top die sealing groove is arranged between the top surface and the intermediate surface, and a sealing ring is installed on the lower top die sealing groove.

[0014] The die structure applied to the fixing ring according to the embodiments of the utility model has at least the following technical effects: the new die design can quickly process a workpiece into a fixing ring, the upper vertical ring part of the workpiece is formed through the first outer forming surface of the lower sliding block forming surface, the convex ring part of the workpiece is formed through the second outer forming surface, the lower side horizontal ring part of the workpiece is formed through the top surface of the lower top die, various cross-sectional shapes of the convex ring part are processed, the lower sliding block position is easy to demold, and the workpiece can be smoothly demolded after processing, thereby ensuring the finished product effect.

[0015] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the utility model.

[0017] Figure 1 is a perspective view of the mold structure applied to the fixing ring of the utility model;

[0018] Figure 2 is a structural schematic view of the mold structure applied to the fixing ring of the utility model;

[0019] Figure 3 is Figure 2 is a local enlarged view of A area in the middle;

[0020] Figure 4 is a working principle schematic view of the mold structure applied to the fixing ring of the utility model;

[0021] Figure 5 is a perspective view of the upper mold in the utility model;

[0022] Figure 6 is a perspective view of the upper convex mold in the utility model;

[0023] Figure 7 is a perspective view of the lower mold in the utility model;

[0024] Figure 8 is a perspective view of the lower slide block in the utility model;

[0025] Figure 9 is a perspective view of the lower top mold in the utility model.

[0026] Reference signs:

[0027] Upper die 100, upper punch hole 110, guide block 111, upper die sealing groove 112, limiting column 120, edge pressing insert 130, pressure regulating hole 140, pressure regulating pad 141, upper die water injection channel 150, upper bulging water outlet hole 151, upper die pad plate 160, upper die plate 170, upper die step position 171; Upper punch 200, upper punch forming surface 210, vertical guide plate 220, connecting disc 230, punch pad 240, punch head 250; Lower die 300, slider cavity 310, lower die cavity mounting position 311, cavity seat 312, slider guide groove 313, lower punch hole 320, lower die sealing groove 321, guide plate seat 330, guide inclined surface 340, lower die water injection channel 350, lower bulging water outlet hole 351, pad foot 360, bottom plate 370, slider ejector rod 380; Lower slider 400, slider inclined surface 410, lower slider forming surface 420, first outer forming surface 421, second outer forming surface 422, lower die insert 430, slider side protrusion 440; Lower ejector 500, top surface 510, lower ejector step position 520, middle surface 530, lower ejector sealing groove 540, top material plate 550, top material plate pad 560, top material plate pad plate 570, top material connecting rod 580; Workpiece 600, upper vertical ring portion 610, convex ring portion 620, lower horizontal ring portion 630. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for the purpose of explaining the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0030] In the description of the present application, the meaning of multiple is more than two, greater than, less than, more than, etc. is not included in the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0031] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting should be understood broadly, and the skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0032] Reference is made below Figure 1 And Figure 2 The mold structure applied to the fixing ring according to the utility model embodiment is described.

[0033] As Figure 1 And Figure 2 The mold structure applied to the fixing ring according to the utility model embodiment, including upper die 100, upper punch 200, lower die 300, lower slide 400 and lower ejector 500, is used for processing workpiece 600.

[0034] Reference is made below Figure 2 、 Figure 3 Upper die 100, the vertical upper punch hole 110 is arranged in upper die 100;Upper punch 200, located in upper punch hole 110, the lower side of the outer side wall of upper punch 200 has upper punch forming surface 210, and upper punch forming surface 210 corresponds the inner side wall position of workpiece 600;Lower die 300, the slide cavity 310 and the vertical lower ejector hole 320 are sequentially arranged in lower die 300 from top to bottom, the guide slope 340 is arranged on the slide cavity 310, and the guide slope 340 is inclined along the direction from the lower side of the inner side of lower die 300 to the upper side of the outer side of lower die 300;Lower slide 400, located on the slide cavity 310, the position of lower slide 400 towards guide slope 340 is provided with slide slope 410, and the position of lower slide 400 towards upper punch 200 is provided with lower slide forming surface 420, and lower slide forming surface 420 includes the first outer forming surface 421 on the upper side and the second outer forming surface 422 on the lower side, the first outer forming surface 421 corresponds the upper vertical ring part 610 of workpiece 600, and the second outer forming surface 422 corresponds the convex ring part 620 of workpiece 600;Lower ejector 500, located in lower ejector hole 320, the outer edge position of the upper side of lower ejector 500 has the top surface 510 corresponding the lower horizontal ring part 630 on the lower side of workpiece 600.

[0035] For example, as Figure 1 、 Figure 2 And Figure 3As shown, the upper die 100 is provided with a vertical upper punch hole 110. The upper punch 200 is located in the upper punch hole 110, and the upper punch 200 can move up and down along the extension direction of the upper punch hole 110, that is, the upper punch 200 and the upper die 100 can relatively move. The lower side of the outer side wall of the upper punch 200 is provided with an upper punch forming surface 210 corresponding to the inner side wall position of the workpiece 600, and the upper punch 200 is responsible for the forming work of the inner side wall position of the workpiece 600 through the upper punch forming surface 210 in the preliminary die closing stage.

[0036] The lower die 300 is located below the upper die 100. The lower die 300 is sequentially provided with a slider cavity 310 and a vertical lower punch hole 320 from top to bottom, so that the slider cavity 310 and the lower punch hole 320 are relatively fixed on the lower die 300. The slider cavity 310 is provided with a guide inclined surface 340 inclined to the upper side of the outer side of the lower die 300. The lower slider 400 is located on the slider cavity 310, and the lower slider 400 can move relative to the slider cavity 310. The position of the lower slider 400 towards the guide inclined surface 340 is provided with a slider inclined surface 410 corresponding to the guide inclined surface 340, so that the lower slider 400 can slide along the direction of the guide inclined surface 340 relative to the slider cavity 310. The position of the lower slider 400 towards the upper punch 200 is provided with a lower slider forming surface 420 corresponding to the outer side wall position of the workpiece 600. The lower slider forming surface 420 includes a first outer forming surface 421 on the upper side and a second outer forming surface 422 on the lower side, the first outer forming surface 421 corresponding to the upper vertical ring part 610 of the workpiece 600, and the second outer forming surface 422 corresponding to the convex ring part 620 of the workpiece 600. The lower slider 400 is responsible for the forming work of the upper vertical ring part 610 and the convex ring part 620 of the workpiece 600 through the lower slider forming surface 420 in the convex ring forming stage. The lower punch 500 is located in the lower punch hole 320, and the lower punch 500 can move up and down along the extension direction of the lower punch hole 320. The outer edge position of the lower punch 500 on the upper side is provided with a top surface 510 corresponding to the lower horizontal ring part 630 on the lower side of the workpiece 600. The lower punch 500 is responsible for the forming work of the lower horizontal ring part 630 of the workpiece 600 through the lower top surface 510 in the convex ring forming stage.

[0037] Referring to Figure 3 , Figure 4 , the mold structure of the utility model is in a separated state of the upper die 100 and the lower die 300 in ordinary times.

[0038] In the initial mold closing stage, the unprocessed ring-shaped workpiece 600 is first fitted on the upper punch 200, and then the upper mold 100 and the lower mold 300 are closed. At this time, the upper punch 200 extends into the slider cavity 310, the upper punch forming surface 210 of the upper punch 200 is positioned to clamp the inner side of the workpiece 600, and the lower slider forming surface 420 of the lower slider 400 is positioned to abut against the outer side of the workpiece 600. However, since there is no additional pressure to make the workpiece 600 tightly abut against the lower slider forming surface 420, this stage is only responsible for the preliminary shaping work of the workpiece 600, to ensure that the roundness of the workpiece 600 meets the requirements.

[0039] In the convex ring forming stage, the lower punch 500 moves upward to abut against the upper punch 200, and the upper punch 200 is pushed upward until the lower slider forming surface 420 abuts against the lower side of the workpiece 600. The lower punch 500 continues to move upward, at this time, the upper punch forming surface 210 on the upper punch 200 and the first outer forming surface 421 on the lower slider 400 clamp the upper vertical ring portion 610 of the workpiece 600, and the lower side of the workpiece 600 is pressed by the top surface 510 of the lower punch 500, so that the lower side of the workpiece 600 is deformed towards the second outer forming surface 422, and the convex ring portion 620 and the lower horizontal ring portion 630 of the workpiece 600 are extruded and formed, thereby forming the predetermined fixed ring structure of the workpiece 600.

[0040] In the demolding stage, the upper mold 100 and the lower mold 300 are separated, and the upper punch 200 also moves upward along with the upper mold 100 to leave the slider cavity 310, so that the upper punch 200 no longer abuts against the lower slider 400. The lower slider 400 slides along the slider inclined surface 410 and the guide inclined surface 340 to the upper side of the outer side, so that the lower slider forming surface 420 of the lower slider 400 is separated from the workpiece 600, and the demolding between the workpiece 600 and the lower mold 300 and the lower slider 400 is completed. After the upper mold 100 and the lower mold 300 are separated, the workpiece 600 still fitted on the upper punch 200 can be directly taken out.

[0041] In some embodiments of the present application, the upper mold 100 and the upper punch 200 can be driven to move by the control device respectively, or the upper mold 100 is driven to move by the control device, and the upper punch 200 is connected with the upper mold 100 through the upper mold spring, and the upper mold spring applies a downward pushing force to the upper punch 200.

[0042] In some embodiments of the present application, referring to Figure 2 , Figure 5 A vertical guide plate 220 is arranged on the outer wall of the upper punch 200, and a guide block 111 is arranged on the inner wall of the upper punch hole 110, and the guide block 111 can guide the movement of the guide block 111, so that the upper punch 200 can be more accurately guided to move up and down.

[0043] In some embodiments of this utility model, a limiting post 120 is provided on the upper mold 100, and a connecting plate 230 is provided on the upper side of the upper punch 200. The limiting post 120 can abut against the lower edge of the connecting plate 230 to limit the range of downward movement of the upper punch 200 relative to the upper mold 100.

[0044] In some embodiments of this utility model, a pressure-bearing insert 130 is provided on the lower side of the upper mold 100, the pressure-bearing insert 130 surrounds the upper punch 200, and a lower mold insert 430 is provided on the upper side of the lower slider 400, the lower mold insert 430 being able to abut against the pressure-bearing insert 130. That is, when the upper mold 100 and the lower mold 300 are closed, the pressure of mold closing is borne by the pressure-bearing insert 130 and the lower mold insert 430. The pressure-bearing insert 130 and the lower mold insert 430 can be made of materials that are more resistant to impact.

[0045] In some embodiments of this utility model, a pressure adjusting hole 140 is provided on the lower side of the upper mold 100. The pressure adjusting hole 140 surrounds the upper punch 200. A pressure adjusting pad 141 is installed in the pressure adjusting hole 140 by screws. The size of the pressure adjusting pad 141 extending out of the pressure adjusting hole 140 is adjusted by screws to ensure that the pressure on the contact surface of the upper mold 100 and the lower mold 300 is sufficiently uniform when they are closed, which is beneficial to extending the service life of the mold.

[0046] In a further embodiment of the present invention, the upper mold 100 includes an upper mold pad 160 on the upper side and an upper mold template 170 on the lower side.

[0047] In some specific embodiments of this utility model, an upper mold step 171 is provided on the upper side of the upper punch hole 110 in the upper template 170, and a guide block 111 is provided on the upper mold step 171.

[0048] In some specific embodiments of this utility model, the limiting post 120 is connected to the upper side of the guide block 111.

[0049] In some embodiments of this utility model, reference is made to Figure 2 , Figure 6 The upper punch 200 includes an upper punch pad 240 and a lower punch head 250.

[0050] In some specific embodiments of this utility model, the connecting plate 230 is connected to the upper side of the punch pad 240, and the vertical guide plate 220 is connected to the outer side wall of the punch pad 240.

[0051] In some specific embodiments of this utility model, the upper punch forming surface 210 is located on the outer wall of the punch head 250.

[0052] In some embodiments of this utility model, reference is made to Figure 2 , Figure 7The lower die 300 is connected with the bottom plate 370 through the foot 360.

[0053] In some embodiments of the utility model, the lower die 300 is provided with a concave lower die cavity mounting position 311 on the upside, and a cavity seat 312 is arranged in the lower die cavity mounting position 311, and the slider cavity 310 is located on the cavity seat 312.

[0054] In some embodiments of the utility model, referring to Figure 3 、 Figure 9 The lower side wall of the lower ejector 500 is provided with a concave lower ejector step position 520 on the upside, the lower ejector step position 520 surrounds the top surface 510, the lower ejector step position can support the lower slider 400, and the lower ejector 500 can lift the lower slider 400 through the lower ejector step position in the demolding stage.

[0055] In some embodiments of the utility model, referring to Figure 2 、 Figure 7 The slider cavity 310 is provided with a guide plate seat 330, the guide inclined surface 340 is a detachable inclined guide plate structure, and the guide inclined surface 340 is located on the guide plate seat 330. The guide inclined surface 340 can be replaced after wearing.

[0056] In some embodiments of the utility model, the slider cavity 310 is provided with a slider top rod 380 that can move up and down on the downside, and the slider top rod 380 can support the lower side of the lower slider 400 upwards, for lifting the lower slider 400 in the demolding stage.

[0057] In some embodiments of the utility model, referring to Figure 7 The slider cavity 310 is provided with a slider guide groove 313. Referring to Figure 8 The side edge of the lower slider 400 is provided with a slider side protruding part 440. The extension direction of the slider guide groove 313 and the slider side protruding part 440 is the same as that of the guide inclined surface 340. The slider guide groove 313 can clamp the slider side protruding part 440, and guide the lower slider 400 to move outward and upward on the lower die 300.

[0058] In some embodiments of the utility model, referring to Figure 2 、 Figure 5 The upper die 100 is provided with an upper die water injection channel 150, and the inner side wall of the upper punch hole 110 is provided with an upper bulging water outlet hole 151 as the water outlet of the upper die water injection channel 150. Referring to Figure 2 、 Figure 7The lower die 300 is provided with a lower die water injection channel 350, and a lower bulging water outlet hole 351 is arranged on the inner side wall of the lower punch hole 320 as a water outlet of the lower die water injection channel 350, and the upper die water injection channel 150 and the lower die water injection channel 350 are both externally connected to a pressurized water source, which is used for injecting high-pressure water into the upper bulging water outlet hole 151 and the lower bulging water outlet hole 351 when the mold is closed, pressurizing the inside of the upper punch hole 110 and the lower punch hole 320, and performing pressurized bulging work, thereby improving the forming efficiency of bulging and further improving the forming effect of bulging.

[0059] In some embodiments of the utility model, referring to Figure 5 、 Figure 7 The inner side wall of the upper punch hole 110 is provided with an upper die sealing groove 112, and the inner side wall of the lower punch hole 320 is provided with a lower die sealing groove 321, and a sealing ring is arranged on the upper die sealing groove 112 and the lower die sealing groove 321, so that the high-pressure water injected into the upper bulging water outlet hole 151 and the lower bulging water outlet hole 351 is prevented from leaking out from the gap between the upper punch hole 110 and the upper punch 200 and the gap between the lower punch hole 320 and the lower punch 500.

[0060] In some embodiments of the utility model, the lower die 300 and the lower punch 500 can be driven to move by a control device, or the lower die 300 is fixed, or the lower die 300 and the lower punch 500 are connected by a lower die spring, and the lower die spring applies an upward thrust to the lower punch 500.

[0061] In some embodiments of the utility model, referring to Figure 9 The upper side of the lower punch 500 is provided with an intermediate surface 530, the top surface 510 surrounds the intermediate surface 530, and a lower punch sealing groove 540 is arranged between the top surface 510 and the intermediate surface 530, and a sealing ring is arranged on the lower punch sealing groove 540, so that the injected high-pressure water is kept at the position of the top surface 510, and too much water is prevented from penetrating into the intermediate surface 530 to affect the bulging effect.

[0062] In some embodiments of the utility model, the lower punch 500 sequentially comprises a top material plate 550, a top material plate pad 560 and a top material plate pad plate 570 from top to bottom. The top surface 510, the intermediate surface 530 and the lower punch sealing groove 540 are located on the upper side of the top material plate 550. The lower punch step position 520 is located on the upper side of the top material plate pad 560.

[0063] In some embodiments of the utility model, the lower punch 500 is provided with a top material connecting rod 580, and the lower punch 500 is driven to move by the top material connecting rod 580.

[0064] The mold according to the utility model can realize rapid forming of the fixed ring and improve work efficiency by using the mold structure applied to the fixed ring. The above design is suitable for fixed ring components with a convex ring structure, such as special fixed ring components used in aerospace.

[0065] Other configurations and operations of the mold structure according to the embodiments of the present application are known to those skilled in the art and are not described in detail here.

[0066] Reference is made below Figure 1 and Figure 2 A mold structure applied to a fixing ring according to the embodiments of the present application is described in detail with a specific embodiment. It is to be understood that the following description is only exemplary and is not a specific limitation of the present application.

[0067] As Figure 1 , Figure 2 and Figure 3 indicated, the mold structure applied to the fixing ring according to the embodiments of the present application comprises an upper die 100, an upper punch 200, a lower die 300, a plurality of lower slides 400 and a lower ejector 500, for machining a workpiece 600.

[0068] The machined workpiece 600 comprises an upper vertical ring portion 610, a convex ring portion 620 and a lower horizontal ring portion 630.

[0069] The upper die 100 comprises an upper die backing plate 160 and an upper die plate 170. The upper die 100 is provided with an upper punch hole 110, and the upper punch hole 110 is provided with a guide block 111, an upper die sealing groove 112 and a limiting column 120. The lower side of the upper die 100 is provided with a rim pressing insert 130, a pressure regulating hole 140 and a pressure regulating pad 141. The upper die 100 is provided with an upper die water injection channel 150 and an upper bulging water outlet hole 151.

[0070] The upper punch 200 comprises a punch backing 240 and a punch head 250. The punch head 250 is provided with an upper punch forming surface 210, and the punch backing 240 is provided with a vertical guide plate 220 and a connecting disc 230.

[0071] The lower die 300 is provided with a lower die cavity mounting position 311, and the lower die cavity mounting position 311 is provided with a cavity seat 312. The lower die cavity mounting position 311 is provided with a slide cavity 310, a slide guide groove 313, a guide plate seat 330 and a guide inclined surface 340. The lower die 300 is further provided with a lower ejector hole 320. The lower ejector hole 320 is provided with a lower die sealing groove 321. The lower die 300 is provided with a lower die water injection channel 350 and a lower bulging water outlet hole 351. The lower side of the lower die 300 is provided with a foot pad 360, a bottom plate 370 and a slide ejector rod 380.

[0072] The lower slide 400 is provided with a slide inclined surface 410, a lower slide forming surface 420, a lower die insert 430 and a slide side convex portion 440. The lower slide forming surface 420 comprises a first outer forming surface 421 and a second outer forming surface 422.

[0073] The lower top die 500 comprises a top material plate 550, a top material plate cushion block 560, and a top material plate cushion plate 570, and the top material plate 550 is provided with a top surface 510, an intermediate surface 530, and a lower top die sealing groove 540. The top material plate cushion plate 570 is provided with a lower top die step position 520. The lower side of the lower top die 500 is provided with a top material connecting rod 580.

[0074] In some embodiments of the utility model, in actual work, in the preliminary die closing stage, the unprocessed ring-shaped workpiece 600 is first sleeved on the upper convex die 200, and then the upper die 100 and the lower die 300 are closed. At this time, the limiting column 120 abuts against the connecting disc 230, the convex die head 250 of the upper convex die 200 extends into the sliding block cavity 310, the upper convex die forming surface 210 of the upper convex die 200 is positioned to abut against the inner side of the workpiece 600, and the lower sliding block forming surface 420 of the lower sliding block 400 is positioned to abut against the outer side of the workpiece 600. However, since no additional pressure is used to make the workpiece 600 tightly abut against the lower sliding block forming surface 420, the stage is only responsible for the preliminary shaping work of the workpiece 600, and ensures that the roundness of the workpiece 600 meets the requirements.

[0075] In the convex ring forming stage, the lower top die 500 is moved upward to abut against the upper convex die 200, and the upper convex die 200 is pushed open upward until the lower sliding block forming surface 420 abuts against the lower side of the workpiece 600. At this time, the limiting column 120 no longer continuously abuts against the connecting disc 230. The lower top die 500 continues to move upward, and at this time, the upper convex die forming surface 210 on the upper convex die 200 and the first outer forming surface 421 on the lower sliding block 400 clamp the upper vertical ring part 610 position of the workpiece 600, the lower side of the workpiece 600 is extruded by the top surface 510 of the lower top die 500, the lower side of the workpiece 600 is deformed towards the second outer forming surface 422, and the convex ring part 620 and the lower horizontal ring part 630 of the workpiece 600 are extruded and formed in shape, thereby forming the predetermined fixed ring structure forming of the workpiece 600.

[0076] In the demolding stage, the upper die 100 and the lower die 300 are separated, the convex die head 250 of the upper convex die 200 also moves upward to leave the sliding block cavity 310 along with the upper die 100, and the upper convex die 200 no longer abuts against the lower sliding block 400. The lower top die step position 520 of the lower top die 500 cooperates with the sliding block top rod 380 to push the lower sliding block 400 upward, the lower sliding block 400 slides along the sliding block inclined surface 410 and the guide inclined surface 340 to the upper side of the outer side, so that the lower sliding block forming surface 420 of the lower sliding block 400 is separated from the workpiece 600, and the demolding between the workpiece 600 and the lower die 300 and the lower sliding block 400 is completed. After the upper die 100 and the lower die 300 are separated, the workpiece 600 still sleeved on the upper convex die 200 can be directly taken out.

[0077] The mold structure applied to the fixing ring can achieve at least the following effects: the new mold design can quickly process the workpiece 600 into the fixing ring, especially the convex ring part 620, and the workpiece can be smoothly demolded after processing, thereby ensuring the finished product effect.

[0078] In the description of the specification, the description referring to the terms "some embodiments" or "it is conceivable that" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A mold structure applied to a fixing ring, characterized in that, include: Upper mold (100), wherein a vertical upper punch hole (110) is provided inside the upper mold (100); The upper punch (200) is located inside the upper punch hole (110). The lower side of the outer wall of the upper punch (200) has an upper punch forming surface (210), which corresponds to the inner wall position of the workpiece (600). The lower mold (300) has a slider cavity (310) and a vertical lower ejector hole (320) arranged sequentially from top to bottom inside the lower mold (300). A guide slope (340) is provided on the slider cavity (310). The guide slope (340) is inclined in a direction from the lower inner side of the lower mold (300) to the upper outer side of the lower mold (300). The lower slider (400) is located on the slider cavity (310). The lower slider (400) has a slider inclined surface (410) at a position facing the guide inclined surface (340). The lower slider (400) has a lower slider forming surface (420) at a position facing the upper punch (200). The lower slider forming surface (420) includes an upper first outer forming surface (421) and a lower second outer forming surface (422). The first outer forming surface (421) corresponds to the upper vertical ring portion (610) of the workpiece (600), and the second outer forming surface (422) corresponds to the convex ring portion (620) of the workpiece (600). The lower ejector die (500) is located inside the lower ejector die hole (320). The upper outer edge of the lower ejector die (500) has a top surface (510) corresponding to the lower horizontal ring portion (630) of the workpiece (600).

2. The mold structure applied to the fixing ring according to claim 1, characterized in that, A vertical guide plate (220) is provided on the outer side wall of the upper punch (200), and a guide block (111) is provided on the inner side wall of the upper punch hole (110). The guide block (111) can guide the movement of the guide block (111).

3. The mold structure applied to the fixing ring according to claim 1 or 2, characterized in that, The upper mold (100) is provided with a limiting post (120), and the upper punch (200) is provided with a connecting plate (230) on its upper side. The limiting post (120) can abut against the lower edge of the connecting plate (230).

4. The mold structure applied to the fixing ring according to claim 1, characterized in that, The upper mold (100) is provided with a pressing edge insert (130) on its lower side, the pressing edge insert (130) surrounds the upper punch (200), and the lower slide block (400) is provided with a lower mold insert (430) on its upper side, the lower mold insert (430) being able to press against the pressing edge insert (130).

5. The mold structure applied to the fixing ring according to claim 1, characterized in that, The upper die (100) is provided with a pressure regulating hole (140) on its lower side. The pressure regulating hole (140) surrounds the upper punch (200). A pressure regulating pad (141) is installed in the pressure regulating hole (140) by screws.

6. The mold structure applied to the fixing ring according to claim 1, characterized in that, The upper side of the outer wall of the lower mold (500) is provided with a concave lower mold step (520), the lower mold step (520) surrounds the top surface (510), and the lower mold step can abut against the lower slide block (400).

7. The mold structure applied to the fixing ring according to claim 1, characterized in that, The slider cavity (310) is provided with a guide plate seat (330), and the guide slope (340) is a detachable inclined guide plate structure. The guide slope (340) is located on the guide plate seat (330).

8. The mold structure applied to the fixing ring according to claim 1, characterized in that, The upper mold (100) is provided with an upper mold water injection channel (150), and the inner wall of the upper punch hole (110) is provided with an upper expansion-shaped water outlet hole (151) as the water outlet of the upper mold water injection channel (150). The lower mold (300) is provided with a lower mold water injection channel (350), and the inner wall of the lower top mold hole (320) is provided with a lower expansion-shaped water outlet hole (351) as the water outlet of the lower mold water injection channel (350). Both the upper mold water injection channel (150) and the lower mold water injection channel (350) are connected to a pressurized water source.

9. The mold structure applied to the fixing ring according to claim 8, characterized in that, The inner wall of the upper punch hole (110) is provided with an upper die sealing groove (112), and the inner wall of the lower die hole (320) is provided with a lower die sealing groove (321). Sealing rings are installed on the upper die sealing groove (112) and the lower die sealing groove (321).

10. The mold structure applied to the fixing ring according to claim 8, characterized in that, The lower mold (500) has a middle surface (530) on its upper side, and the top surface (510) surrounds the middle surface (530). A lower mold sealing groove (540) is provided between the top surface (510) and the middle surface (530), and a sealing ring is installed on the lower mold sealing groove (540).

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