阅读说明：本技术 一种滑套复合反挤的模具结构 (Compound anti-mould structure of crowded of sliding sleeve ) 是由 刘平才 于 2021-05-11 设计创作，主要内容包括：本发明公开了一种滑套复合反挤的模具结构,具体涉及模具领域,包括支撑型模具底座,支撑型模具底座的顶部固定安装有外置模具框架机构,外置模具框架机构的顶部固定安装有外套环安装机构,外套环安装机构的顶部插接有上冲头机构,外套环安装机构的内壁固定安装有下模机构,上冲头机构插接在下模机构的内腔,下模机构的底部固定安装有下冲头机构,下冲头机构的外壁套接有止料环机构,止料环机构插接在外置模具框架机构的内腔。本发明通过设置了调节机构,在中置套接筒与横置连接板上下运动的同时,达到调节底置环形弹性体与顶置环形弹性体弹力的作用,相对提升了滑套复合反挤杆部深孔跳动的可控性。(The invention discloses a sliding sleeve composite reverse extrusion die structure, and particularly relates to the field of dies. According to the invention, the adjusting mechanism is arranged, so that the elastic force of the bottom annular elastic body and the top annular elastic body is adjusted while the middle sleeve and the transverse connecting plate move up and down, and the controllability of deep hole jumping of the composite reverse extrusion rod part of the sliding sleeve is relatively improved.)

1. The utility model provides a compound crowded mould structure of turning over of sliding sleeve, includes support type mould base (1), its characterized in that: an external mould frame mechanism (2) is fixedly arranged at the top of the supporting mould base (1), an outer lantern ring mounting mechanism (3) is fixedly mounted at the top of the external die frame mechanism (2), the top of the outer thimble installation mechanism (3) is inserted with an upper punch mechanism (4), the inner wall of the outer thimble mounting mechanism (3) is fixedly provided with a lower die mechanism (5), the upper punch mechanism (4) is inserted into the inner cavity of the lower die mechanism (5), the lower punch mechanism (6) is fixedly arranged at the bottom of the lower die mechanism (5), the outer wall of the lower punch mechanism (6) is sleeved with a material stopping ring mechanism (7), the material stopping ring mechanism (7) is inserted in the inner cavity of the external die frame mechanism (2), the bottom of the material stopping ring mechanism (7) is fixedly provided with a rebound mechanism (8), a plurality of adjusting mechanisms (9) are fixedly arranged at the top of the supporting type die base (1);

the adjusting mechanism (9) comprises a plurality of transverse connecting plates (91), each transverse connecting plate (91) is fixedly provided with a middle sleeve (92) at the central position, the top of the middle sleeve (92) is fixedly provided with a clamping type fixed sleeve (93) through a bolt, the middle sleeve (92) is communicated with the clamping type fixed sleeve (93), the outer wall of the clamping type fixed sleeve (93) is rotatably connected with a rotary movable sleeve (94), the clamping type fixed sleeve (93) is mutually clamped with the rotary movable sleeve (94), a movable nut (95) is welded at the top of the rotary movable sleeve (94), a thread tooth groove (96) is arranged inside the movable nut (95), and a fixed threaded rod (97) is inserted into the inner cavity of the middle sleeve (92), the movable nut (95) and the fixed threaded rod (97) are in threaded connection through a threaded tooth socket (96).

2. The mold structure of claim 1, wherein: the top of support type mould base (1) is through bolt fixed mounting has a plurality of threaded rod fixing base (98), fixed type threaded rod (97) are through bolt fixed mounting at corresponding threaded rod fixing base (98) top, and are a plurality of all through bolt fixed mounting there is support go-between (99) between middle sleeve joint section of thick bamboo (92), the top welding of activity type nut (95) has horizontal connecting seat (910).

3. The mold structure of claim 1, wherein: the external mold frame mechanism (2) comprises an external mold sleeve (201), an inner ring movable groove (202) is formed in the top of the external mold sleeve (201), a plurality of side movable grooves (203) are formed in the outer wall of the external mold sleeve (201), and the side movable grooves (203) are communicated with an inner cavity of the external mold sleeve (201).

4. The mold structure of claim 1, wherein: the upper punch mechanism (4) comprises an upper punch (41) for die forming, an overhead punch connecting seat (42) is welded at the top of the upper punch (41) for die forming, and a punching surface (43) is fixedly mounted at the bottom of the upper punch (41) for die forming.

5. The mold structure of claim 1, wherein: lower die mechanism (5) are including sleeve type lower mould (51), first mould shaping chamber (52) have been seted up to the inside of sleeve type lower mould (51), the bottom intercommunication of first mould shaping chamber (52) is equipped with second mould shaping chamber (53), second mould shaping chamber (53) set up the inside at sleeve type lower mould (51).

6. The mold structure of claim 5, wherein: the support connecting ring (54) is fixedly installed on the edge of the bottom of the sleeve type lower die (51) through a bolt, and a lower punch slot (55) is formed in the center of the bottom of the sleeve type lower die (51).

7. The mold structure of claim 1, wherein: the lower punch mechanism (6) comprises a main punch rod body (61), a lower punch top cap (62) is fixedly mounted at the top of the main punch rod body (61), and a lower punch bottom connecting disc (63) is fixedly mounted at the bottom of the main punch rod body (61) through a bolt.

8. The mold structure of claim 1, wherein: end material ring mechanism (7) including laminating type material ring (71), lower punch body of rod slot (72) have been seted up to the inside of laminating type material ring (71), there is end go-between (73) bottom the bottom of laminating type material ring (71) through bolt fixed mounting, the top at horizontal connecting plate (91) is welded to end go-between (73).

9. The mold structure of claim 1, wherein: rebound type mechanism (8) are including putting annular elastomer (81) at the end, the top fixed mounting that puts annular elastomer (81) at the end has overhead annular elastomer (82), the top fixed mounting of overhead annular elastomer (82) has first laminating type support ring (83), the edge fixed mounting of first laminating type support ring (83) has second laminating type support ring (84), first laminating type support ring (83) are through the top of second laminating type support ring (84) joint at overhead annular elastomer (82).

10. The mold structure of claim 9, wherein: the bottom of the bottom annular elastic body (81) is clamped with a first bottom supporting block (85), the top center of the first bottom supporting block (85) is provided with a lower punch clamping groove (86), and the bottom center of the first bottom supporting block (85) is clamped with a second bottom supporting block (87).

Technical Field

The invention relates to the technical field of dies, in particular to a die structure for composite reverse extrusion of a sliding sleeve.

Background

In brief, the mold is a tool for manufacturing a formed article, the tool is composed of various parts, different molds are composed of different parts, the shape of the article is processed mainly by changing the physical state of the formed material, the blank is made into a workpiece with a specific shape and size under the action of external force, the mold is widely used for blanking, die forging, cold heading, extrusion, pressing of powder metallurgy parts, pressure casting, and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like, the mold has a specific contour or inner cavity shape, and the blank can be separated according to the contour line shape by applying the contour shape with a cutting edge.

The sliding sleeve is an important part in an automobile transmission system, weight reduction of the sliding sleeve is required in recent years, materials are saved, and the subsequent machining allowance is reduced to become a problem which exists in enterprises all the time, the traditional die structure forge piece is very unstable in deep hole jumping control of the composite extrusion rod part of the sliding sleeve, and a general method is 1. the machining cost is increased by boring a hole after backward extrusion; 2. the lower punch is fixed, and two-stage material returning is adopted, so that the lower punch cannot be cooled, the service life of the punch is short, the product is unstable in jumping, and the cost of a forging die is increased.

Disclosure of Invention

In order to overcome the above defects in the prior art, embodiments of the present invention provide a mold structure for composite backward extrusion of a sliding sleeve, in which an adjusting mechanism is provided, so that the elastic forces of a bottom annular elastic body and a top annular elastic body are adjusted while a middle sleeve and a transverse connecting plate move up and down, thereby solving the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a die structure for composite backward extrusion of a sliding sleeve comprises a supporting die base, wherein an external die frame mechanism is fixedly mounted at the top of the supporting die base, an outer collar mounting mechanism is fixedly mounted at the top of the external die frame mechanism, an upper punch mechanism is inserted into the top of the outer collar mounting mechanism, a lower die mechanism is fixedly mounted on the inner wall of the outer collar mounting mechanism, the upper punch mechanism is inserted into the inner cavity of the lower die mechanism, a lower punch mechanism is fixedly mounted at the bottom of the lower die mechanism, a material stopping ring mechanism is sleeved on the outer wall of the lower punch mechanism and inserted into the inner cavity of the external die frame mechanism, a rebound mechanism is fixedly mounted at the bottom of the material stopping ring mechanism, and a plurality of adjusting mechanisms are fixedly mounted at the top of the supporting die base;

adjustment mechanism is including horizontal connecting plate, the quantity of horizontal connecting plate is a plurality of, every the central point of horizontal connecting plate puts the equal fixed mounting of middle-placed cup joint section of thick bamboo, the top of middle-placed cup joint section of thick bamboo has joint type fixed sleeve through bolt fixed mounting, middle-placed cup joint section of thick bamboo is linked together with joint type fixed sleeve, joint type fixed sleeve's outer wall rotates and is connected with rotary-type movable sleeve, and joint type fixed sleeve and the mutual joint of rotary-type movable sleeve, the welding of rotary-type movable sleeve's top has the activity type nut, the inside of activity type nut is equipped with the thread socket, the inner chamber of middle-placed cup joint section of thick bamboo is pegged graft and is had fixed type threaded rod, activity type nut all passes through thread socket threaded connection with fixed.

In a preferred embodiment, a plurality of threaded rod fixing seats are fixedly mounted on the top of the supporting mold base through bolts, the fixed threaded rods are fixedly mounted on the tops of the corresponding threaded rod fixing seats through bolts, supporting connecting rings are fixedly mounted among the middle sleeve barrels through bolts, and the top of the movable nut is welded with a transverse connecting seat.

In a preferred embodiment, the external mold frame mechanism includes an external mold sleeve, an inner ring movable groove is formed in the top of the external mold sleeve, a plurality of side movable grooves are formed in the outer wall of the external mold sleeve, and the side movable grooves are communicated with an inner cavity of the external mold sleeve.

In a preferred embodiment, the upper punch mechanism comprises an upper punch for die forming, an overhead punch connecting seat is welded on the top of the upper punch for die forming, and a punching surface is fixedly mounted on the bottom of the upper punch for die forming.

In a preferred embodiment, the lower die mechanism comprises a sleeve-type lower die, a first die forming cavity is formed in the sleeve-type lower die, a second die forming cavity is communicated with the bottom of the first die forming cavity, and the second die forming cavity is arranged in the sleeve-type lower die.

In a preferred embodiment, the bottom edge of the sleeve type lower die is fixedly provided with a support connecting ring through a bolt, and the bottom center of the sleeve type lower die is provided with a lower punch slot.

In a preferred embodiment, the lower punch mechanism comprises a main punch rod body, a lower punch top cap is fixedly mounted at the top of the main punch rod body, and a lower punch bottom connecting disc is fixedly mounted at the bottom of the main punch rod body through a bolt.

In a preferred embodiment, the material stopping ring mechanism comprises a fitting type material stopping ring, a lower punch rod body slot is formed in the fitting type material stopping ring, a bottom connecting ring is fixedly installed at the bottom of the fitting type material stopping ring through a bolt, and the bottom connecting ring is welded at the top of the transverse connecting plate.

In a preferred embodiment, the springback mechanism comprises an underlying annular elastomer, the top of the underlying annular elastomer is fixedly mounted with an overhead annular elastomer, the top of the overhead annular elastomer is fixedly mounted with a first fitting-type support ring, the edge of the first fitting-type support ring is fixedly mounted with a second fitting-type support ring, and the first fitting-type support ring is clamped at the top of the overhead annular elastomer through the second fitting-type support ring.

In a preferred embodiment, a first bottom supporting block is clamped at the bottom of the bottom annular elastic body, a lower punch clamping groove is formed in the center of the top of the first bottom supporting block, and a second bottom supporting block is clamped at the center of the bottom of the first bottom supporting block.

The invention has the technical effects and advantages that:

1. according to the invention, by arranging the adjusting mechanism, in the process of pressing films on different material dies, the elasticity of the required top annular elastic body is different from that of the bottom annular elastic body, the movable nut is rotated, so that the movable nut drives the middle sleeve and the transverse connecting plate to move up and down simultaneously, and the effect of extruding the bottom annular elastic body and the top annular elastic body is achieved while the middle sleeve and the transverse connecting plate move up and down, so that the side surface achieves the effect of adjusting the elasticity of the bottom annular elastic body and the top annular elastic body, and the controllability of deep hole jumping of the composite reverse extrusion rod part of the sliding sleeve is relatively improved;

2. the invention has set up the springback type organization, utilize the top-set punch connecting seat to connect the mould shaping with the upper punch on the corresponding pressure output equipment, the mould is shaped in the cavity of the lower die mechanism through the upper punch mechanism, in the course of the mould shaping, the lower die mechanism drives the lower punch mechanism and stops the material ring organization to move downward at the same time, achieve the function of squeezing to the annular elastomer of bottom and top-set, utilize the elastic vertical force produced while squeezing, solve the slide bush and compound and crowd the pole part and jump the oversized phenomenon of the deep hole.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the overall construction of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of the portion B of FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of the structure of the portion C of FIG. 2 according to the present invention;

FIG. 6 is a partial structural cross-sectional view of the external mold frame mechanism of the present invention;

FIG. 7 is a schematic structural view of a lower punch mechanism of the present invention;

fig. 8 is a partial structural schematic view of the main punch body according to the present invention.

The reference signs are: 1 supporting type die base, 2 external die frame mechanism, 201 external die sleeve, 202 internal ring movable groove, 203 side movable groove, 3 external sleeve ring installation mechanism, 4 upper punch mechanism, 41 upper punch for die forming, 42 overhead punch connecting seat, 43 stamping face, 5 lower die mechanism, 51 sleeve type lower die, 52 first die forming cavity, 53 second die forming cavity, 54 supporting connecting ring, 55 lower punch inserting groove, 6 lower punch mechanism, 61 main punch rod body, 62 lower punch top cap, 63 lower punch bottom connecting disc, 7 stopping ring mechanism, 71 attaching type stopping ring, 72 punch rod body inserting groove, 73 bottom connecting ring, 8 rebound type mechanism, 81 bottom annular elastic body, 82 top annular elastic body, 83 first attaching type supporting ring, 84 second attaching type supporting ring, 85 first bottom supporting block, 86 bottom punch clamping groove, 87 second bottom supporting block, 9 adjusting mechanisms, 91 horizontal connecting plates, 92 middle-placed sleeve barrels, 93 clamping type fixed sleeves, 94 rotary type movable sleeves, 95 movable nuts, 96 thread tooth grooves, 97 fixed threaded rods, 98 threaded rod fixing seats, 99 supporting connecting rings and 910 horizontal connecting seats.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached fig. 1-8 of the specification, the invention discloses a sliding sleeve composite reverse extrusion die structure, the die comprises a supporting die base 1, wherein an external die frame mechanism 2 is fixedly mounted at the top of the supporting die base 1, an outer thimble mounting mechanism 3 is fixedly mounted at the top of the external die frame mechanism 2, an upper punch mechanism 4 is inserted into the top of the outer thimble mounting mechanism 3, a lower die mechanism 5 is fixedly mounted on the inner wall of the outer thimble mounting mechanism 3, the upper punch mechanism 4 is inserted into the inner cavity of the lower die mechanism 5, a lower punch mechanism 6 is fixedly mounted at the bottom of the lower die mechanism 5, a material stopping ring mechanism 7 is sleeved on the outer wall of the lower punch mechanism 6, the material stopping ring mechanism 7 is inserted into the inner cavity of the external die frame mechanism 2, a rebound mechanism 8 is fixedly mounted at the bottom of the material stopping ring mechanism 7, and a plurality of adjusting mechanisms 9 are fixedly mounted at the top of the supporting die base 1;

the adjusting mechanism 9 comprises a plurality of transverse connecting plates 91, the number of the transverse connecting plates 91 is multiple, a central sleeve 92 is fixedly arranged at the central position of each transverse connecting plate 91, a clamping type fixed sleeve 93 is fixedly arranged at the top of the central sleeve 92 through a bolt, the central sleeve 92 is communicated with the clamping type fixed sleeve 93, the outer wall of the clamping type fixed sleeve 93 is rotatably connected with a rotary type movable sleeve 94, the clamping type fixed sleeve 93 and the rotary type movable sleeve 94 are mutually clamped, a movable nut 95 is welded at the top of the movable sleeve 94, a thread tooth groove 96 is arranged inside the movable nut 95, a fixed threaded rod 97 is inserted into the inner cavity of the sleeve 92, the movable nut 95 and the fixed threaded rod 97 are both in threaded connection through the thread tooth groove 96, a plurality of threaded rod fixing seats 98 are fixedly arranged at the top of the supporting type mold base 1 through bolts, the fixed threaded rod 97 is fixedly installed at the top of the corresponding threaded rod fixing seat 98 through bolts, a plurality of middle sleeve connecting cylinders 92 are fixedly installed with supporting connecting rings 99 through bolts, and the top of the movable nut 95 is welded with a transverse connecting seat 910.

External mould frame mechanism 2 includes external mould sleeve 201, inner ring activity groove 202 has been seted up at the top of external mould sleeve 201, a plurality of side activity grooves 203 have been seted up to the outer wall of external mould sleeve 201, side activity groove 203 is linked together with the inner chamber of external mould sleeve 201, upper punch mechanism 4 includes punch 41 for the mould shaping, top-set punch connecting seat 42 has been welded at the top of punch 41 for the mould shaping, the bottom fixed mounting of punch 41 has punching press face 43 for the mould shaping, lower die mechanism 5 includes sleeve type lower mould 51, first mould shaping chamber 52 has been seted up to the inside of sleeve type lower mould 51, the bottom intercommunication of first mould shaping chamber 52 is equipped with second mould shaping chamber 53, second mould shaping chamber 53 sets up in the inside of sleeve type lower mould 51, there is support go-between 54 at the bottom edge of sleeve type lower mould 51 through bolt fixed mounting, lower punch slot 55 has been seted up to the bottom central point of sleeve type lower mould 51.

The lower punch mechanism 6 comprises a main punch rod body 61, a lower punch top cap 62 is fixedly installed at the top of the main punch rod body 61, a lower punch bottom connecting disc 63 is fixedly installed at the bottom of the main punch rod body 61 through a bolt, the material stopping ring mechanism 7 comprises a fitting type material stopping ring 71, a lower punch rod body inserting groove 72 is formed in the fitting type material stopping ring 71, a bottom connecting ring 73 is fixedly installed at the bottom of the fitting type material stopping ring 71 through a bolt, the bottom connecting ring 73 is welded at the top of the transverse connecting plate 91, the rebounding mechanism 8 comprises a bottom annular elastic body 81, an annular elastic body 82 is fixedly installed at the top of the bottom annular elastic body 81, a first fitting type supporting ring 83 is fixedly installed at the top of the top annular elastic body 82, a second fitting type supporting ring 84 is fixedly installed at the edge of the first fitting type supporting ring 83, the first fitting type supporting ring 83 is clamped at the top of the top annular elastic body 82 through the second fitting type supporting ring 84, the bottom of the bottom annular elastic body 81 is clamped with a first bottom supporting block 85, the top center of the first bottom supporting block 85 is provided with a lower punch clamping groove 86, and the bottom center of the first bottom supporting block 85 is clamped with a second bottom supporting block 87.

The working principle is as follows: firstly, taking out the required parts of the invention for convenient installation and use, when in actual use, connecting the upper punch 41 for die forming to corresponding pressure output equipment by using the top punch connecting seat 42, forming the die in the inner cavity of the lower die mechanism 5 by using the upper punch mechanism 4, driving the lower punch mechanism 6 and the material stopping ring mechanism 7 to move downwards simultaneously by using the lower die mechanism 5 in the die forming process, achieving the extrusion effect on the bottom annular elastic body 81 and the top annular elastic body 82, solving the phenomenon of overlarge jumping of the sliding sleeve composite backward extrusion rod part by using the elastic vertical force generated in the extrusion process, ensuring that the elasticity of the top annular elastic body 82 and the bottom annular elastic body 81 is different in the process of pressing the dies made of different materials, rotating the movable nut 95, and leading the movable nut 95 to drive the sleeve 92 and the transverse connecting plate 91 to move up and down simultaneously, when the middle sleeve 92 and the transverse connecting plate 91 move up and down, the bottom annular elastic body 81 and the top annular elastic body 82 are extruded, and the side surface of the middle sleeve is used for adjusting the elasticity of the bottom annular elastic body 81 and the top annular elastic body 82.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.