CN212792669U - Car headrest pipe rolling forming die - Google Patents
Car headrest pipe rolling forming die Download PDFInfo
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- CN212792669U CN212792669U CN202020870563.7U CN202020870563U CN212792669U CN 212792669 U CN212792669 U CN 212792669U CN 202020870563 U CN202020870563 U CN 202020870563U CN 212792669 U CN212792669 U CN 212792669U
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Abstract
The utility model discloses a rolling forming die for automobile headrest tubes, which comprises an upper die base and a lower die base, wherein the upper die base is arranged on the lower die base through a driving mechanism; the male die part comprises a male die block and a first male die component, the male die block is connected with the upper die base, the first male die component is arranged on the male die block, the first male die component comprises a plurality of convex blocks which are arranged along the axial direction of the part, and the convex blocks are horizontally arranged towards the direction of the female die part. Use above-mentioned car headrest pipe roll forming die, can guarantee the angle precision of tooth mouth, can not lead to the fact the damage around pipe wall and the tooth mouth, promoted the fashioned precision of tooth mouth, guarantee processingquality.
Description
Technical Field
The utility model relates to an automobile spare and accessory part machine-shaping technical field, concretely relates to car headrest pipe roll forming die.
Background
The existing automobile seat headrest pipe is used for supporting a seat headrest on a seat back, the general automobile seat headrest pipe comprises two linear supporting pipes and a U-shaped headrest supporting part, the seat headrest is installed on the headrest supporting part, the tops of the two linear supporting pipes are respectively connected with the opening end part of the U-shaped headrest supporting part through bent pipes, the bottom of the two linear supporting pipes is inserted into the seat back of the seat, tooth openings are usually punched on pipe bodies of the two linear supporting pipes, and the two linear supporting pipes are connected and fixed with a clamping and fixing device arranged in the seat back of the seat through the tooth openings so as to ensure the reliable connection between the seat headrest and the seat back.
Usually, the tooth mouth on the car seat headrest pipe body is accomplished through adopting special tooth mouth stamping die to punch press, punch structure and die structure among the tooth mouth stamping die often need dispose according to the design opening shape of tooth mouth and come special configuration, because the interval between two adjacent tooth mouths is little, adopt traditional tooth mouth stamping die to carry out toothed punching press to this row of tooth, often can't guarantee the inclined plane angle of skewed tooth, and can also cause the tooth mouth corner collapse, defects such as broken pipe wall or burr, therefore can't satisfy the shaping processing requirement of arranging the tooth.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the to-be-solved technical problem of the utility model is to provide a car headrest pipe roll forming die can improve the fashioned precision of car headrest pipe tooth mouth.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a rolling forming die for an automobile headrest tube comprises an upper die holder, a lower die holder, a female die part and a male die part, wherein the upper die holder is arranged on the lower die holder through a driving mechanism;
the male die part comprises a male die block and a first male die component, the male die block is connected with the upper die base, the first male die component is arranged on the male die block, the first male die component comprises a plurality of convex blocks which are arranged along the axial direction of the part, and the convex blocks are horizontally arranged towards the direction of the female die part.
The part is placed on the female die part, the driving mechanism drives the upper die base to move downwards, and the part is cut into a plurality of tooth openings by the convex blocks in the first male die assembly in the downward moving process.
Further, the female die part comprises a female die fixing frame, a sliding block, a stripping block and a female die, the female die is arranged on the female die fixing frame, parts can be placed on the female die, the sliding block and the stripping block are arranged in the female die fixing frame, one end of the lower side of the stripping block is provided with a groove which can be attached to the parts, one end of the upper side of the stripping block, far away from the groove, is provided with an inclined plane, two ends of the sliding block are provided with inclined planes, and one inclined plane of the sliding block is in sliding connection with the inclined plane of the stripping block;
still be equipped with the slide wedge on the upper die base, the slide wedge setting is kept away from one side of convex mould portion at die portion, the slide wedge is connected with the other end inclined plane sliding of slider, and can promote the slider and slide towards the die direction.
When the driving mechanism drives the upper die base to move downwards, the wedge also moves downwards, the inclined plane of the wedge is in sliding connection with the sliding block and pushes the sliding block towards the material stripping block, the material stripping block gradually moves towards the part direction below under the pushing of the sliding block and is attached to the part through the groove, and the part is clamped by the concave die, so that the accuracy in molding is improved.
Further, the lower side of the stripping block is connected with the lower die base through a spring.
After the part is formed, the driving mechanism drives the upper die base to move upwards, the wedge leaves the sliding block, and the stripping block can push the sliding block away under the action of the spring, so that the part is clamped and taken down conveniently.
Furthermore, a limiting fixed block and a limiting block are further arranged in the female die fixed frame, the limiting fixed block is arranged on the sliding block and is in sliding connection with the sliding block, and a jack is arranged on one side, close to the limiting fixed block, of the sliding block;
one end of the limiting block is fixed on the limiting fixing block, the other end of the limiting block is inserted into the jack, and the aperture of the jack is larger than that of the limiting block.
The aperture of jack is greater than the stopper, makes the stopper leave the activity space in the jack, lets the slider can slide for the stopper to the motion range of restriction slider avoids the slider to fall out the fixed frame of die.
Furthermore, the male die part also comprises a plurality of second male die components, the second male die components are arranged on the male die block, and the second male die components are all positioned above the first male die component part and are uniformly arranged at intervals along the movement direction of the male die block;
the second male die assembly comprises a plurality of rollers which are arranged along the axial direction of the part, the rollers are the same in number as the lugs and are in one-to-one correspondence in position, and the diameters of the rollers of the second male die assembly are gradually increased from bottom to top;
and a third male die assembly is arranged above the second male die assembly and comprises a plurality of first lugs arranged along the axial direction of the part, the number of the first lugs is the same as that of the first lugs, the first lugs are in one-to-one correspondence with the first lugs in position, and the width of the first lugs is larger than that of the roller at the top.
In the process that the upper die holder moves downwards, the part is firstly cut by the first male die assembly, then the roller of the second male die assembly rolls the tooth opening, the diameter of the roller is gradually increased, the rolling precision is improved, and finally the tooth opening is formed by cutting the first protruding block of the third male die assembly.
Further, be equipped with nitrogen gas spring assembly in the convex mould piece, including nitrogen gas fixed block, nitrogen gas spring and terrace die fixed block, the nitrogen gas fixed block sets up on the convex mould piece, the both ends of nitrogen gas spring are connected with nitrogen gas fixed block and terrace die fixed block respectively, second terrace die assembly sets up on the terrace die fixed block.
The nitrogen spring is connected with the male die fixing block, so that the stability of the male die fixing block can be improved, and the stability of the second male die assembly is improved.
Further, the drive mechanism includes a press ram.
The upper die base is driven to move up and down relative to the lower die base through the press slide block.
Further, the lower die holder is further provided with a leaning block, one side, away from each other, of the male die portion and the female die portion is provided with the leaning block, and the leaning block is attached to the male die portion and the female die portion through the wear-resistant block.
The leaning blocks on the two sides are used for limiting the male die part and the female die part, and abrasion is reduced through lifting of the abrasion-resistant blocks.
Further, still include the bottom plate, the die holder sets up on the bottom plate, and is connected with the bottom plate through a plurality of bottom pads foot.
The lower die holder sets up on the bottom plate through a plurality of foot pads, promotes stability.
The beneficial effects of above-mentioned car headrest pipe roll forming die are: compare in the mode of punching press, the angle precision of tooth mouth more can be guaranteed through cutting roll forming's mode to can not lead to the fact the damage around pipe wall and the tooth mouth, promote the fashioned precision of tooth mouth, guarantee processingquality.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
fig. 3 is a schematic sectional structure of the present invention;
FIG. 4 is a schematic sectional view of the male mold part of the present invention;
fig. 5 is a schematic sectional view of the female mold part of the present invention;
reference numerals: 1-part, 2-upper die holder, 200-convex die part, 210-first convex die component, 211-convex block, 220-second convex die component, 221-roller, 230-third convex die component, 231-convex block I, 240-convex die block, 250-nitrogen spring component, 251-nitrogen spring, 252-nitrogen fixed block, 253-convex die fixed block, 3-lower die holder, 30-lower supporting plate, 31-lower pad foot, 32-backup block, 33-wear-resisting block, 300-concave die part, 310-wedge, 320-concave die fixed frame, 330-slide block, 331-jack, 340-stripping block, 341-spring, 350-concave die, 360-limit fixed block, 361-limit block and 4-press slide block.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced components or structures must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be considered as limiting the present invention.
Please refer to fig. 1 to 5, the utility model provides a car headrest pipe roll forming die, including upper die base 2, die holder 3, die part 300 and terrace die portion 200, die holder 3 sets up on bottom plate 30 through a plurality of lower pads foot 31, upper die base 2 passes through actuating mechanism and sets up on die holder 3, die part 300 sets up on die holder 3, terrace die portion 200 sets up on upper die base 2, place part 1 on die part 300, actuating mechanism can drive upper die base 2 for die holder 3 up-and-down motion, make the terrace die to part 1 roll forming.
Specifically, the male mold part 200 comprises a male mold block 240, a first male mold assembly 210, a second male mold assembly 220, a third male mold assembly 230 and a nitrogen spring assembly 250, the male mold block 240 is arranged on one side of the upper mold base 2 facing the lower mold base 3, and the first male mold assembly 210, the second male mold assembly 220, the third male mold assembly 230 and the nitrogen spring assembly 250 are all arranged on the male mold block 240.
The first male die assembly 210 is arranged at the bottom of the male die block 240 and comprises a plurality of projections 211 arranged in the axial direction of the part 1, the projections 211 being arranged towards the female die section 300. The plurality of second male die assemblies 220 are uniformly arranged at intervals along the moving direction of the male die block 240 and the upper die holder 2, each second male die assembly 220 comprises a plurality of rollers 221 arranged along the axial direction of the part 1, the number of the rollers 221 is the same as that of the lugs 211, and the positions of the rollers are in one-to-one correspondence. The diameter of the rollers 221 of the plurality of second male mold assemblies 220 is gradually increased from bottom to top. The third male die assembly 230 includes a plurality of first protrusions 231 arranged along the axial direction of the component 1, the number of the first protrusions 231 is the same as that of the first protrusions 211, and the positions of the first protrusions 231 are in one-to-one correspondence, and the width of the first protrusions 231 is larger than that of the topmost roller 221.
The nitrogen spring assembly 250 comprises a nitrogen fixing block 252, a nitrogen spring 251 and a male die fixing block 253, wherein the nitrogen fixing block 252 is fixedly arranged on one side of the male die block 240, the male die fixing block 253 is arranged on the other side of the male die block 240 and is connected with the nitrogen fixing block 252 through the nitrogen spring 251, and the second male die assembly 220 is arranged on the male die fixing block 253.
When the driving mechanism drives the upper die holder 2 to move downwards, the convex block 211 of the first male die assembly 210 is firstly contacted with the part 1 and cuts out a tooth opening, then the roller 221 of the second male die assembly 220 rolls the tooth opening and gradually enlarges the tooth opening, and finally the convex block one 231 cuts the tooth opening to finish the forming of the tooth opening. In the rolling process of the roller 221, the nitrogen spring 251 can play a stable role in the male die fixing block 253, so that the stability of the roller 221 is maintained, and the rolling precision is ensured.
The female die part 300 comprises a female die fixing frame 320, a sliding block 330, a stripping block 340, a limiting block 361 and a female die 350, wherein the female die 350 fixing block is arranged on the lower die base 3, and the female die 350, the sliding block 330, the stripping block 340 and the limiting fixing block 360 are all arranged in the female die fixing frame 320. The die 350 is provided on the die holder 320 for preventing the part 1. The stripping block 340 is also arranged on the die fixing frame 320, and one end of the lower side of the stripping block 340 is provided with a groove which is positioned above the die 350 and can be attached to the part 1.
The upper side of one end of the stripping block 340 far away from the groove is provided with an inclined surface, and two sides of the sliding block 330 are also provided with inclined surfaces, wherein one inclined surface is in sliding connection with the inclined surface of the stripping block 340, and the other inclined surface extends out of a small part of the die fixing frame 320. The upper die holder 2 is further provided with a wedge 310, the wedge 310 is located on one side of the female die part 300 far away from the male die part 200, and the bottom of the wedge 310 is also provided with an inclined surface and is in sliding connection with the inclined surface of the sliding block extending out of the female die fixing frame 320.
When the upper die holder 2 moves downwards, the wedge 310 moves downwards, the sliding block 330 is pushed towards the horizontal direction, the sliding block 330 is pushed into the die fixing frame 320, the other end of the sliding block 330 slides on the stripping block 340, the stripping block 340 is pressed downwards, the groove of the stripping block 340 is tightly attached to the part 1, the part 1 is pressed, and therefore the machining precision can be improved.
The bottom of the female die fixing frame 320 is provided with a through hole, the bottom of the stripping block 340 passes through the through hole through a spring 341 to be connected with the lower die holder 3, and when the stripping block 340 is pressed down by the sliding block 330, the spring 341 is compressed. After the forming is finished, the upper die base 2 moves upwards, the wedge 310 leaves the sliding block 330, the spring 341 pushes the stripping block 340 to move upwards and push the sliding block 330 outwards for a part, and at the moment, the part 1 on the female die 350 is not clamped any more and the part 1 can be removed.
The limiting fixing block 360 is located above the sliding block 330, is fixedly arranged on the bottom surface of the top end of the female die fixing frame 320, and is in sliding connection with the sliding block 330. The sliding block 330 is provided with a jack 331, the limiting fixing block 360 is provided with a limiting block 361, the limiting block 361 is inserted into the jack 331, and the aperture of the jack 331 is larger than that of the limiting block 361. When the slider 330 slides within the die fixing frame 320, the slider 330 can slide with respect to the stopper 361, and the stopper 361 can restrict the slider 330 from sliding within a small range.
Still be equipped with two on the die holder 3 and lean on piece 32, two lean on the piece 32 to be located the one side of keeping away from each other of die part 300 and protruding die part 200 respectively, one of them leans on piece 32 to laminate mutually through wear-resisting piece 33 and tapered wedge, and another leans on piece 32 to laminate mutually through wear-resisting piece 33 and drawing module, can promote the stability of roll forming in-process through leaning on piece 32 to promote the machining precision, wear-resisting piece 33 can reduce wearing and tearing, promotes life.
In the present embodiment, the drive mechanism is the press ram 4.
The working principle of the rolling forming die for the automobile headrest tube is as follows: the part 1 is placed on the female die 350, and the press slide 4 is started to drive the upper die holder 2 to move downwards. The wedge 310 contacts with the sliding block 330 first, and pushes the sliding block 330 in the horizontal direction, and the sliding block 330 presses the stripping block 340 downwards to compress the part 1. After the upper die holder 2 drives the male die block 240 to move downwards, the first male die assembly 210 firstly cuts the tooth openings of the part 1, the second male die assembly 220 rolls the tooth openings in sequence, and finally the third male die assembly 230 cuts the tooth openings again. After the forming is completed, the press slide 4 drives the upper die holder 2 to move upwards, and after the wedge 310 leaves the slide 330, the spring 341 pushes the stripping block 340 to move upwards, so that the part 1 can be taken out.
By using the rolling forming die for the automobile headrest tube, the angle precision of the tooth opening can be ensured in a rolling forming mode, loss to the tube wall and the periphery of the tooth opening can be avoided, the forming precision is improved, and the processing quality is ensured.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A rolling forming die for an automobile headrest tube comprises an upper die holder and a lower die holder, wherein the upper die holder is arranged on the lower die holder through a driving mechanism;
the male die part comprises a male die block and a first male die component, the male die block is connected with the upper die base, the first male die component is arranged on the male die block, the first male die component comprises a plurality of convex blocks which are arranged along the axial direction of the part, and the convex blocks are horizontally arranged towards the direction of the female die part.
2. The roll forming die for the automotive headrest tube as claimed in claim 1, wherein the female die part comprises a female die fixing frame, a slide block, a stripping block and a female die, the female die is arranged on the female die fixing frame, parts can be placed on the female die, the slide block and the stripping block are both arranged in the female die fixing frame, one end of the lower side of the stripping block is provided with a groove capable of being attached to the parts, one end of the upper side of the stripping block, which is far away from the groove, is provided with an inclined plane, two ends of the slide block are both provided with inclined planes, and one end of the slide block is in sliding connection with the inclined plane of the stripping block;
still be equipped with the slide wedge on the upper die base, the slide wedge setting is kept away from one side of convex mould portion at die portion, the slide wedge is connected with the other end inclined plane sliding of slider, and can promote the slider and slide towards the die direction.
3. The roll forming die for the automotive headrest tube as claimed in claim 2, wherein the lower side of the stripping block is connected with the lower die holder through a spring.
4. The roll forming die for the automotive headrest tube as claimed in claim 2, wherein a limiting fixed block and a limiting block are further arranged in the female die fixed frame, the limiting fixed block is arranged on the sliding block and is connected with the sliding block in a sliding manner, and a jack is arranged on one side of the sliding block close to the limiting fixed block;
one end of the limiting block is fixed on the limiting fixing block, the other end of the limiting block is inserted into the jack, and the aperture of the jack is larger than that of the limiting block.
5. The roll forming die for the automotive headrest tube as claimed in claim 1, wherein the male die part further comprises a plurality of second male die assemblies, the second male die assemblies are arranged on the male die block, and the plurality of second male die assemblies are all arranged above the first male die assembly part and are uniformly arranged at intervals along the moving direction of the male die block;
the second male die assembly comprises a plurality of rollers which are arranged along the axial direction of the part, the rollers are the same in number as the lugs and are in one-to-one correspondence in position, and the diameters of the rollers of the second male die assembly are gradually increased from bottom to top;
and a third male die assembly is arranged above the second male die assembly and comprises a plurality of first lugs arranged along the axial direction of the part, the number of the first lugs is the same as that of the first lugs, the first lugs are in one-to-one correspondence with the first lugs in position, and the width of the first lugs is larger than that of the roller at the top.
6. The roll forming die for the automotive headrest tube as claimed in claim 5, wherein a nitrogen spring assembly is arranged in the convex die block and comprises a nitrogen fixing block, a nitrogen spring and a male die fixing block, the nitrogen fixing block is arranged on the convex die block, two ends of the nitrogen spring are respectively connected with the nitrogen fixing block and the male die fixing block, and the second male die assembly is arranged on the male die fixing block.
7. The roll forming die for the automotive headrest tube as claimed in claim 1, wherein the driving mechanism comprises a press ram.
8. The roll forming die for the automotive headrest tube as claimed in claim 1, wherein the lower die holder is further provided with a rest block, the sides of the male die portion and the female die portion, which are far away from each other, are provided with rest blocks, and the rest blocks are attached to the male die portion and the female die portion through wear-resistant blocks.
9. The roll forming die for the automotive headrest tube as claimed in claim 1, further comprising a lower support plate, wherein the lower die holder is arranged on the lower support plate and connected with the lower support plate through a plurality of lower pad feet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020870563.7U CN212792669U (en) | 2020-05-22 | 2020-05-22 | Car headrest pipe rolling forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020870563.7U CN212792669U (en) | 2020-05-22 | 2020-05-22 | Car headrest pipe rolling forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212792669U true CN212792669U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020870563.7U Active CN212792669U (en) | 2020-05-22 | 2020-05-22 | Car headrest pipe rolling forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212792669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789282A (en) * | 2022-06-07 | 2022-07-26 | 张家港乔昇精密机械制造有限公司 | Pipe section forming gear hobbing machine and gear hobbing method |
-
2020
- 2020-05-22 CN CN202020870563.7U patent/CN212792669U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114789282A (en) * | 2022-06-07 | 2022-07-26 | 张家港乔昇精密机械制造有限公司 | Pipe section forming gear hobbing machine and gear hobbing method |
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