CN211839924U - Novel lever type connecting piece and manufacturing die thereof - Google Patents
Novel lever type connecting piece and manufacturing die thereof Download PDFInfo
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- CN211839924U CN211839924U CN202020164346.6U CN202020164346U CN211839924U CN 211839924 U CN211839924 U CN 211839924U CN 202020164346 U CN202020164346 U CN 202020164346U CN 211839924 U CN211839924 U CN 211839924U
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Abstract
The utility model relates to a novel lever type connecting sheet and a manufacturing die thereof, which comprises a connecting sheet body, wherein two ends of the connecting sheet body are divided into a big round head and a small round head, and are respectively provided with a first jack and a second jack which are concentric with the big round head and the small round head; the connecting sheet body is provided with an identification positioning structure, the identification positioning structure comprises an identification positioning groove, a first guide angle and a second chamfer, and the identification positioning groove is arranged on one side surface of the connecting sheet body; the first chamfer and the second chamfer are respectively inverted on the upper hole port of the first jack and the lower hole port of the second jack on the right side of the identification positioning groove; or the first chamfer and the second chamfer are respectively inverted on the lower hole port of the first jack and the upper hole port of the second jack on the left side of the identification positioning groove; the utility model discloses a set up discernment location structure, ensure that the location assembly direction is accurate, and connection piece body and bulb spare cartridge connection performance are firm.
Description
Technical Field
The utility model relates to an automobile parts technical field, concretely relates to novel lever connection piece and manufacturing die and the lever connection piece of making by this manufacturing method thereof.
Background
The lever type connecting sheet is mainly applied to automobile parts and an automobile exhaust collector; as shown in fig. 1, two ends of the existing lever type connecting piece are respectively provided with a reducer, and the reducer is internally provided with a first jack and a second jack which are respectively used for inserting and matching ball head pieces; as shown in fig. 2, the structure is an assembly structure of a prior lever type connecting piece and a ball head piece; the directions of the ball head pieces in which the big head and the small head are inserted are symmetrical and are respectively from top to bottom and from bottom to top; chamfers for insertion guiding are respectively inverted at one hole end of the first insertion hole and the second insertion hole according to the insertion direction. When inserting and matching, workers insert and match with the ball head piece according to the chamfer directions on the first jack and the second jack, and the manual insertion and matching is accurate in assembly, low in efficiency and high in cost. However, when the assembly line is automatically assembled, the ball head piece and the lever type connecting piece are frequently subjected to reverse mismatching, the ball head piece is inserted from the end which is not chamfered, so that the problems of insertion collision and unsmooth insertion matching are avoided. Therefore, the existing lever type connecting piece is structurally improved, and chamfering is carried out at the upper hole end and the lower hole end of the first inserting hole and the second inserting hole for inserting guiding, so that the first inserting hole and the second inserting hole can provide inserting guiding for the ball head piece no matter which direction is inserted from the upper direction and the lower direction. However, although the conventional lever-type connecting piece can be automatically inserted and assembled, the production efficiency is improved, but the use test shows that the defects exist; as shown in fig. 2, the upper and lower hole ends of the first and second insertion holes are chamfered, which easily causes the ball head piece to loosen, the lower hole port of the insertion hole is flared, and the insertion stability is poor; and secondly, two chamfering procedures are added in the traditional machining production process, so that the manufacturing cost is increased.
As is well known, the automobile is concerned with life safety, so that the requirements of automobile parts on design structure, production size and process are strict, and the use of the whole automobile is even influenced by the problem of fine parts; in particular as a lever-type connection piece; the utility model discloses a set up discernment location structure on the lever connection piece to can provide the big or small head and the assembly positioning of automatic identification assembly direction, discernment lever connection piece when automatic the plug-in on the assembly line, the firm in connection nature of bulb spare and lever connection piece is ensured to accurate assembly direction. In addition, the outer contour of the lever type connecting piece is not allowed to have a fracture surface, so that the precision and the surface finish are higher, and the traditional machining process cannot meet the technical requirements; the existing manufacturing method adopts a high-speed machine of a numerical control machining center and a high-speed milling process, the machining method can ensure the dimensional precision and the surface smoothness of the lever type connecting piece, but the defects that the first lever type connecting piece and the lever type connecting piece have smaller volumes and the manufacturing cost is higher by adopting the numerical control machining center are overcome; secondly, the lever type connecting piece needs chamfering and processing on the front side and the back side, so that the front side and the back side need to be subjected to surface printing and positioning processing for ensuring the precision, the process is complicated, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve present lever connection piece automatic assembly back and bulb be connected easily not hard up and its processing technology loaded down with trivial details, the high and low technical problem of production efficiency of manufacturing process to a novel lever connection piece and manufacturing die that have discernment assembly direction, can fix a position the assembly and assemble accurate, firm and the precision is high, low in manufacturing cost with bulb cartridge connection performance is provided.
The utility model provides a technical scheme that above-mentioned problem adopted does: a novel lever type connecting piece comprises a connecting piece body, wherein two ends of the connecting piece body are divided into a large round head and a small round head, and a first jack and a second jack which are concentric with the large round head and the small round head are respectively arranged on the connecting piece body; the connecting sheet body is provided with an identification positioning structure, the identification positioning structure comprises an identification positioning groove, a first guide angle and a second chamfer, and the identification positioning groove is arranged on one side surface of the connecting sheet body; the first chamfer and the second chamfer are respectively inverted on the upper hole port of the first jack and the lower hole port of the second jack on the right side of the identification positioning groove; or the first chamfer and the second chamfer are respectively inverted on the lower hole port of the first jack and the upper hole port of the second jack on the left side of the identification positioning groove; according to the novel lever type connecting piece, the identification positioning structure is arranged on the connecting piece body, and the identification positioning groove is formed in one side face, so that when automatic insertion and assembly are carried out on an assembly line, a system program can carry out positioning on one hand according to the position of the identification positioning groove, and on the other hand, according to the position of the identification positioning groove, the size round head of the connecting piece is identified so that the corresponding ball head piece is inserted and assembled with the first jack and the second jack; the accurate positioning and assembling direction is ensured, and the connecting piece body and the ball head piece are firmly connected in an inserting manner.
Preferably, the identification positioning groove has a semicircular structure, and the radius of the identification positioning groove is R2.
Preferably, the identification positioning groove is positioned in the hole centers of the first jack and the second jack; the identification positioning grooves are respectively equal to the hollow distances of the first insertion hole and the second insertion hole, so that the ball head piece can be conveniently identified and inserted.
Preferably, the chamfer values of the first chamfer and the second chamfer are both 0.5mm, and meanwhile, the first chamfer and the second chamfer are both 30-degree chamfers; the chamfer value of 30 ° is advantageous for optimum guidance during the plug-in assembly of the ball head part with the socket.
A manufacturing die for a novel lever type connecting piece comprises a male die and a female die, wherein the male die is matched with the female die, the male die comprises a male die base and a male die core, and the male die core is arranged on the male die base and is arranged in an integrated structure; the female die comprises a female die holder, the upper part and the lower part of the female die holder are respectively provided with a female die cavity and a punching die cavity, and the female die cavity is communicated with the punching die cavity; the lever type connecting piece is formed by punching the male die and the female die, so that the formed lever type connecting piece has accurate precision and high finish degree of the outer contour, and particularly, the lever type connecting piece has low manufacturing cost and high production efficiency.
Preferably, the punching cavity is sequentially provided with a punching cavity and an extruding cavity from top to bottom; the stamping part is stamped to a stamping cavity by a male die, is cut by the stamping cavity and enters an extrusion cavity to be forcibly extruded to completely extrude burrs on the outer contour of the stamping part to be broken backwards, and the outer contour of the stamping part meets the requirement of smoothness through forcible extrusion.
As preferred, the degree of depth of punching the die cavity is 15mm, the degree of depth of punching the die cavity is 5mm, and the degree of depth of crowded die cavity is 10mm, conventional stamping workpiece decide through 3mm degree of depth can, the burr that the crowded die cavity of stamping workpiece rethread degree of depth 10mm was taken absolutely all extrudees, and the finish improves after the outer profile face of stamping workpiece is extruded by force.
Preferably, the cavity wall of the extrusion cavity is provided with an inverted structure, and the optimal value of the inverted draft angle is 3 degrees; the extrusion cavity is provided with the inverted buckle structure, and the optimal 3-degree draft angle is set, so that the size of the extrusion cavity is 0.03mm to 0.05mm smaller than that of the blanking cavity, and the forced extrusion friction degree of the outer contour of the stamping part and the cavity wall of the extrusion cavity is increased.
Preferably, the height of the male mold core is 17mm, and the depth of the female mold cavity is 17 mm; the height of the convex mold core is larger than the depth of the punching cavity, and the punching, cutting and blanking can be completed in one step.
Preferably, the male die core is internally provided with a first punched hole and a second punched hole respectively; through set up first punching a hole and punch a hole with the second on the convex mould core respectively, save the secondary and punch a hole, promote machining efficiency.
The utility model discloses compare with prior art owing to adopted above-mentioned technical scheme, the utility model discloses a benefit is: the novel lever type connecting piece of the utility model is provided with the identification positioning structure on the connecting piece body, and utilizes the identification positioning groove arranged on one side face, so that the positions of the first chamfer and the second chamfer are correspondingly arranged, when the novel lever type connecting piece is automatically inserted and matched on an assembly line, a system program can be positioned according to the positions of the identified positioning groove on one hand, and on the other hand, according to the positions of the identified positioning groove, so that the corresponding ball head piece, the first jack and the second jack are inserted and matched due to the size round head of the identified connecting piece; the accurate positioning and assembling direction is ensured, so that the connecting sheet body and the ball head piece are firmly connected in an inserting manner; according to the utility model discloses the manufacturing mould of the novel lever connection piece of preparation matches stamping forming through terrace die and die, utilizes the die to set up the die cavity that has blanking chamber and crowded die cavity as an organic whole in the die, and no matter size precision and the surface finish of the novel lever connection piece of stamping forming all can reach the high requirement, and the cost of manufacture of this kind of mould is very low, and the high fungible tradition machining technology of availability factor improves production efficiency reduction in production cost.
Drawings
FIG. 1 is a perspective view of a prior art lever type connecting piece;
FIG. 2 is a perspective view of a prior art lever type connecting piece assembled with a ball head piece;
fig. 3 is a schematic three-dimensional structure view of the novel lever type connecting piece of the present invention;
fig. 4 is a top view of the novel lever type connecting piece of the present invention;
FIG. 5 is a sectional view A-A of FIG. 4;
fig. 6 is a bottom view of the novel lever type connecting piece of the utility model;
fig. 7 is a schematic view of the combined assembled three-dimensional structure of the novel lever type connecting piece and the ball head piece of the present invention;
fig. 8 is an exploded view of the assembly of the novel lever type connecting piece and the ball head piece of the present invention;
fig. 9 is an exploded perspective view of the manufacturing mold of the novel lever type connecting piece of the present invention;
fig. 10 is a schematic three-dimensional structure view of a female die of the novel manufacturing die for lever type connecting pieces of the present invention;
fig. 11 is a top view of a female die of the novel manufacturing die for lever type connecting pieces of the present invention;
FIG. 12 is a sectional view A-A of FIG. 11;
fig. 13 is a schematic three-dimensional structure diagram of a male die of the novel manufacturing die for the lever type connecting piece of the invention;
FIG. 14 is a schematic full-section view of a male die of the novel manufacturing die for lever type connecting pieces of the present invention;
shown in the figure: 1. the connecting piece comprises a connecting piece body, a first inserting hole, a big round head, a first inserting hole, a second inserting hole, a small round head, a first inserting hole, a second identifying and positioning structure, a positioning groove, 21, a first chamfer, 22, a second chamfer, 3, a male die, 30, a male die holder, 31, a male die core, 311, a first punching hole, 312, a second punching hole, a female die, 40, a female die holder, 41, a female die cavity, 42, a punching die cavity, 421, a punching die cavity, 422, an extruding die cavity, 5a, a first ball head piece and 5B, and a second ball head piece.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
The embodiment of the utility model is that: a novel lever type connecting piece is shown in a figure 3 and comprises a connecting piece body (1), wherein two ends of the connecting piece body (1) are divided into a big round head (1A) and a small round head (1B), and a first inserting hole (1A) and a second inserting hole (1B) which are concentric with the big round head (1A) and the small round head (1B) are respectively formed in the connecting piece body (1) and used for inserting a first ball head piece (5a) and a second ball head piece (5B); referring to fig. 3 to 6, an identification positioning structure (2) is disposed on the connecting sheet body (1), the identification positioning structure (2) includes an identification positioning groove (20), a first chamfer and a second chamfer (22), and specifically, referring to fig. 4, the identification positioning groove (20) is disposed on the left side surface of the connecting sheet body (1); the first chamfer (21) and the second chamfer (22) are respectively inverted on the upper hole port of the first insertion hole (1a) and the lower hole port of the second insertion hole (1b) on the right side of the identification positioning groove (20); or as shown in fig. 6, the identification positioning groove (20) is arranged on the right side surface of the connecting sheet body (1); the lower hole port of the first insertion hole (1a) and the upper hole port of the second insertion hole (1b) on the left side of the identification positioning groove (20) are respectively chamfered with the first chamfer (21) and the second chamfer (22); referring to fig. 4 and 6, the identification positioning groove (20) is a semicircular structure, the radius of the identification positioning groove (20) is R2, and the identification positioning groove (20) is located at the hole centers of the first insertion hole (1a) and the second insertion hole (1 b); the identification positioning groove (20) is equal to the hollow distances of the first insertion hole (1a) and the second insertion hole (1b) respectively, so that the identification insertion of the ball head piece is facilitated; referring to fig. 5, the chamfer values of the first chamfer (21) and the second chamfer (22) are both 0.5mm, and meanwhile, the first chamfer (21) and the second chamfer (22) are both 30-degree chamfers; the chamfer value of 30 ° is advantageous for optimum guidance during the plug-in assembly of the ball head part with the socket.
The utility model discloses a theory of operation of this kind of novel lever connection piece lies in: referring to fig. 7 and 8, by arranging the identification positioning structure (2) on the connecting sheet body (1) and arranging the identification positioning groove (20) on one side surface, the positions of the first chamfer (21) and the second chamfer (22) are correspondingly arranged according to the positioning groove (20); referring to fig. 7 and 8, when the system program identifies the position of the positioning slot (20) during automatic insertion on the production line, on one hand, the parts can be assembled and positioned so that the assembled first ball head piece (5a) and second ball head piece (5b) are respectively corresponding to the first insertion hole (1a) and second insertion hole (1b) to be concentric (ensuring that the first ball head piece and the second ball head piece are concentric during insertion and assembly to avoid insertion collision), on the other hand, according to the position of the positioning slot (20), thereby identifying the directions of the big round head (1A) and the small round head (1B) of the connecting piece, matching with a first chamfer (21) and a second chamfer (22) which are used for inserting and guiding on the first insertion hole (1A) and the second insertion hole (1B), so that the first ball head piece (5a) and the second ball head piece (5b) which correspond to the first ball head piece and the second ball head piece after being matched are inserted and matched with the first insertion hole (1a) and the second insertion hole (1 b); the positioning and assembling direction is accurate, and the connecting piece body (1) is firmly connected with the first ball head piece (5a) and the second ball head piece (5b) in an inserting mode.
The utility model also discloses a manufacturing die of the novel lever type connecting piece, which comprises a male die (3) and a female die (4), wherein the male die (3) is matched with the female die (4) as shown in the specific embodiment of fig. 9 to 14; referring to fig. 13 and 14, the male die (3) includes a male die holder (30) and a male die core (31), and the male die core (31) is disposed on the male die holder (30) and is integrated with the male die holder; particularly, referring to fig. 13 and 14, the male mold core (31) is provided therein with a first punched hole (311) and a second punched hole (312), respectively; the first punched hole (311) and the second punched hole (312) are respectively formed in the male mold core (31), so that the die sinking for secondary punching is omitted, and the machining efficiency is improved by one-time punching; referring to fig. 10, 11 and 12, the female die (4) includes a female die holder (40), the upper and lower portions of the female die holder (40) are respectively provided with a female die cavity (41) and a punching cavity (42), and the female die cavity (41) and the punching cavity (42) are communicated with each other; referring to fig. 12, the punching cavity (42) is sequentially provided with a punching cavity (421) and an extruding cavity (422) from top to bottom; the stamping part is stamped to a stamping cavity (42) from a male die (3), is cut off through a stamping cavity (421) and enters an extrusion cavity (422) to be forcibly extruded to completely extrude burrs on the outer contour of the stamping part backwards to be broken, and the outer contour of the stamping part meets the finish requirement through forced extrusion; the depth of the punching cavity (42) is 15mm, the depth of the punching cavity (421) is 5mm, the depth of the extruding cavity (422) is 10mm, a conventional stamping part can be cut by the depth of 3mm, the stamping part is extruded by burrs in the extruding cavity (422) with the depth of 10mm to be broken, and the smoothness of the outer contour surface of the stamping part is improved after strong extrusion; further, referring to fig. 12, the cavity wall of the extrusion cavity has an inverted structure, and the optimum value of the draft angle of the inverted pattern is 3 °; the extrusion cavity is provided with the inverted buckle structure, and the optimal 3-degree drawing slope is set, so that the size of the extrusion cavity is 0.03mm to 0.05mm smaller than that of the blanking cavity (421), and the forced extrusion friction degree of the outer contour of the stamping part and the cavity wall of the extrusion cavity is increased; still further, for the rapid one-shot molding, as shown in fig. 13 and 14, the height of the male mold core (31) is 17mm, and the depth of the female mold cavity (41) is 17 mm; the height of the convex mold core (31) is larger than the depth of the punching cavity (42), and the punching, cutting and blanking can be completed in one step.
The working principle of the manufacturing die of the novel lever type connecting piece is as follows: referring to fig. 9, the stamping part formed by stamping the male die (3) and the female die (4) simultaneously enters the punching cavity and sequentially passes through the punching cavity and the extruding cavity, so that burrs on the outer contour surface are broken, the precision of the formed novel lever type connecting piece is accurate, the fineness of the outer contour is high, more importantly, the manufacturing cost of the manufacturing die utilizing the novel lever type connecting piece is low, the production efficiency is high, and the die is simple in structure and low in manufacturing cost.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.
Claims (10)
1. A novel lever type connecting piece comprises a connecting piece body (1), wherein two ends of the connecting piece body (1) are divided into a large round head (1A) and a small round head (1B), and a first inserting hole (1A) and a second inserting hole (1B) which are concentric with the large round head (1A) and the small round head (1B) are respectively formed in the connecting piece body (1); the method is characterized in that: the connecting sheet body (1) is provided with an identification positioning structure (2), the identification positioning structure (2) comprises an identification positioning groove (20), a first chamfer and a second chamfer (22), and the identification positioning groove (20) is arranged on one side face of the connecting sheet body (1); the first chamfer (21) and the second chamfer (22) are respectively inverted on the upper hole port of the first insertion hole (1a) and the lower hole port of the second insertion hole (1b) on the right side of the identification positioning groove (20); or the first chamfer (21) and the second chamfer (22) are respectively inverted on the lower hole port of the first insertion hole (1a) and the upper hole port of the second insertion hole (1b) on the left side of the identification positioning groove (20).
2. A novel leverage tab as claimed in claim 1 wherein: the identification positioning groove (20) is of a semicircular structure, and the radius of the identification positioning groove (20) is R2.
3. A novel leverage tab as claimed in claim 2 wherein: the identification positioning groove (20) is positioned in the middle of the first jack (1a) and the second jack (1 b); the identification positioning groove (20) is equal to the distance between the centers of the first jack (1a) and the second jack (1 b).
4. A novel leverage tab as claimed in claim 3 wherein: the chamfer values of the first chamfer (21) and the second chamfer (22) are both 0.5mm, and simultaneously, the first chamfer (21) and the second chamfer (22) are both 30-degree chamfers.
5. A manufacturing die for manufacturing the novel lever type connecting piece as claimed in any one of claims 1 to 4, which comprises a male die (3) and a female die (4), wherein the male die (3) is matched with the female die (4), the male die (3) comprises a male die holder (30) and a male die core (31), and the male die core (31) is arranged on the male die holder (30) and is arranged in an integral structure; the female die (4) comprises a female die holder (40), a female die cavity (41) and a punching die cavity (42) are respectively arranged at the upper part and the lower part of the female die holder (40), and the female die cavity (41) is communicated with the punching die cavity (42).
6. A manufacturing die for a novel lever type connecting piece as claimed in claim 5, wherein: the punching cavity (42) is sequentially provided with a punching cavity (421) and an extruding cavity (422) from top to bottom.
7. A manufacturing die for a novel lever type connecting piece as claimed in claim 6, wherein: the depth of the punching cavity (42) is 15mm, the depth of the punching cavity (421) is 5mm, and the depth of the extruding cavity (422) is 10 mm.
8. A manufacturing die for a novel lever type connecting piece as claimed in claim 7, wherein: the cavity wall of the extrusion cavity is provided with an inverted buckle structure, and the optimal value of the inverted pull inclination is 3 degrees.
9. A manufacturing die for a novel lever type connecting piece as claimed in claim 8, wherein: the height of the male die core (31) is 17mm, and the depth of the female die cavity (41) is 17 mm.
10. A manufacturing die for a novel lever type connecting piece as claimed in claim 9, wherein: the male die core (31) is internally provided with a first punched hole (311) and a second punched hole (312) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020164346.6U CN211839924U (en) | 2020-02-12 | 2020-02-12 | Novel lever type connecting piece and manufacturing die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020164346.6U CN211839924U (en) | 2020-02-12 | 2020-02-12 | Novel lever type connecting piece and manufacturing die thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211839924U true CN211839924U (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020164346.6U Withdrawn - After Issue CN211839924U (en) | 2020-02-12 | 2020-02-12 | Novel lever type connecting piece and manufacturing die thereof |
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| Country | Link |
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| CN (1) | CN211839924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111229975A (en) * | 2020-02-12 | 2020-06-05 | 宁波永科汽车零部件有限公司 | Novel lever type connecting piece and manufacturing die and manufacturing method thereof |
-
2020
- 2020-02-12 CN CN202020164346.6U patent/CN211839924U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111229975A (en) * | 2020-02-12 | 2020-06-05 | 宁波永科汽车零部件有限公司 | Novel lever type connecting piece and manufacturing die and manufacturing method thereof |
| CN111229975B (en) * | 2020-02-12 | 2023-09-19 | 宁波永科汽车零部件有限公司 | Lever-type connecting sheet, and manufacturing mold and manufacturing method thereof |
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