CN220901784U - Bolt cold heading mould - Google Patents
Bolt cold heading mould Download PDFInfo
- Publication number
- CN220901784U CN220901784U CN202322268542.4U CN202322268542U CN220901784U CN 220901784 U CN220901784 U CN 220901784U CN 202322268542 U CN202322268542 U CN 202322268542U CN 220901784 U CN220901784 U CN 220901784U
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- die
- outer die
- cold heading
- external mold
- mold
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- 239000000463 material Substances 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000010030 laminating Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 230000009467 reduction Effects 0.000 description 13
- 239000002994 raw material Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to the technical field of bolt cold heading processing, in particular to a bolt cold heading die which comprises a second outer die, wherein a second inner die is arranged in the second outer die, fixing blocks are arranged at the top end and the bottom end of the second inner die, positioning holes are formed in two sides of the fixing blocks, positioning rods are arranged in the positioning holes, springs are arranged outside the positioning rods, positioning blocks are arranged at one ends of the springs, supporting plates are arranged at the other ends of the springs, pull plates are arranged at one ends of the positioning rods, a first outer die is arranged at one side of the positioning rods, a first inner die is connected in the first outer die, a first push rod for pushing materials is arranged in the first inner die in a fit and sliding mode, a third outer die is arranged at one side of the second outer die far away from the first outer die, a third inner die is connected in the third inner die, and is connected in a fit and sliding mode with a second push rod for discharging materials.
Description
Technical Field
The utility model relates to the technical field of bolt cold heading processing, in particular to a bolt cold heading die.
Background
Bolts, mechanical parts, cylindrical threaded fasteners with nuts. A fastener consisting of a head part and a screw rod (a cylinder with external threads) needs to be matched with a nut for fastening two parts with through holes. This form of connection is called bolting. If the nut is screwed off from the bolt, the two parts can be separated, so that the bolt is connected in a detachable way, the bolt is formed through cold heading, the cold heading process comprises cutting, pre-heading diameter reduction, finish upsetting, tooth twisting, heat treatment and surface treatment, wherein the pre-heading diameter reduction is performed through a diameter reduction die, the diameter reduction part can be worn after the diameter reduction die is used for a long time, replacement treatment is needed after the diameter reduction die is worn, the existing diameter reduction die is of a fixed structure, and the whole replacement cost is high.
And just mention the bolt cold heading mould in the application file of publication number CN216065362U, this mould is through sending raw and other materials to in the first centre form, first push rod promotes the raw materials in the first centre form, second centre form and third centre form cooperation carry out the reducing and handle, the second centre form is the reducing position, second centre form wearing and tearing are comparatively serious, the second centre form needs to be changed after wearing and tearing, make things convenient for the second outer die loading and unloading between first external mold and third external mold through first inserted block and first jack cooperation of second connection structure, simultaneously, make things convenient for the second centre form loading and unloading at the second outer die through second inserted block and the second jack cooperation of third connection structure, need not to change whole reducing mould, the replacement cost has been reduced, simultaneously, the second centre form of removable different chamfer angles, in addition first external mold and third external mold are connected through the connection diaphragm of first connection structure, make things convenient for first external mold and third external mold loading and unloading at the diaphragm both ends of connection, can be changed the correspondence as required, but still there is certain defect, need to obtain the optimization, concrete defect is as follows: the structure is more complicated in the operation of disassembling the necessary repeated screwing bolts for fixing the second outer die.
Therefore, it is important to design a bolt cold heading die to change the technical defects and improve the whole practicability.
Disclosure of utility model
The utility model aims to provide a bolt cold heading die for solving the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a bolt cold heading mould, includes the second external mold, the inside of second external mold is equipped with the second centre form, the top and the bottom of second centre form all are equipped with the fixed block, the both sides of fixed block are equipped with the locating hole, the inside of locating hole is equipped with the locating lever, the outside of locating lever is equipped with the spring, the one end of spring is equipped with the locating piece, the other end of spring is equipped with the backup pad, the one end of locating lever is equipped with the arm-tie, one side of second external mold is equipped with first external mold, be connected with first centre form in the first external mold, first centre form laminating slides has the first push rod that is used for pushing away from first external mold, one side that the second external mold kept away from first external mold is equipped with the third external mold, be connected with the third internal mold in the third internal mold laminating sliding connection has the second push rod that is used for unloading.
As a preferable scheme of the utility model, the fixed block is fixedly connected with the second outer die, and the two positioning holes are mutually staggered.
As a preferable scheme of the utility model, the supporting plates are respectively and symmetrically arranged at the top ends of the first outer die and the third outer die and are fixedly connected with the first outer die and the third outer die.
As a preferable scheme of the utility model, the positioning rod penetrates through the supporting plate and is fixedly connected with the pulling plate, and two ends of the spring are respectively fixedly connected with the supporting plate and the positioning block.
As a preferable scheme of the utility model, stepped extrusion pads are arranged on two side surfaces of the second outer die, which are close to the first outer die, and a groove which is used for being matched with the extrusion pads is arranged on one side surface of the first outer die, which is close to the second outer die, of the third outer die.
As a preferable scheme of the utility model, the supporting plate is connected with the first outer die and the third outer die through bolts, a jack is arranged in the second inner die, and an inserting block is arranged in the jack.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the bolt cold heading die, the structure of the locating rod, the locating hole, the extrusion pad, the groove, the spring and the supporting plate is utilized, the locating rod is matched with the locating hole, the second outer die is fixed to avoid left and right rotation, meanwhile, the locating rod is pulled through the pulling plate to enable the spring to shrink and control the disassembly of the second outer die, the three modules are tightly connected through the clamping connection matching between the extrusion pad and the groove, the bolts can be used for reinforcing, and the problem that the structure is complex in the operation of repeatedly screwing the bolts to disassemble when the second outer die is fixed is solved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a positioning assembly according to the present utility model;
FIG. 3 is a schematic view of the utility model disassembled.
In the figure: 1. a second outer mold; 101. a second internal mold; 102. a fixed block; 103. positioning holes; 104. a first outer mold; 105. a first internal mold; 106. a first push rod; 107. a third outer mold; 108. a third internal mold; 109. a second push rod; 2. a positioning rod; 201. a spring; 202. a positioning block; 203. a support plate; 204. pulling the plate.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-3, the present utility model provides a technical solution:
The utility model provides a bolt cold heading mould, including second external mold 1, the inside of second external mold 1 is equipped with second centre form 101, the top and the bottom of second centre form 101 all are equipped with fixed block 102, the both sides of fixed block 102 are equipped with locating hole 103, the inside of locating hole 103 is equipped with locating lever 2, the outside of locating lever 2 is equipped with spring 201, the one end of spring 201 is equipped with locating piece 202, the other end of spring 201 is equipped with backup pad 203, the one end of locating lever 2 is equipped with arm-tie 204, one side of second external mold 1 is equipped with first external mold 104, first internal mold 105 is connected with in the first external mold 104, first internal mold 105 laminating slides has the first push rod 106 that is used for pushing away from first external mold 104, one side that second external mold 1 kept away from first external mold 104 is equipped with third external mold 107, third external mold 107 interconnect has third internal mold 108, the third internal mold 108 is internally adhered with a second push rod 109 which is used for unloading in a sliding manner, raw materials are sent into the first internal mold 105, the first push rod 106 pushes the raw materials to be subjected to diameter reduction treatment in the first internal mold 105 in cooperation with the second internal mold 101 and the third internal mold, the second internal mold 101 is a diameter reduction part, the second internal mold 101 is worn seriously, the second internal mold 101 needs to be replaced after being worn, the pull plate 204 is pulled by pulling the pull plate 204, the pull plate 204 drives the positioning rod 2 to compress the spring 201 to shrink, the positioning rod 2 is separated from the inside of the positioning hole 103, then the extrusion pad of a new mold is reinstalled after being aligned with the groove, the pull plate 204 is loosened to limit the fixed block 102 times, the whole diameter reduction mold is not required to be replaced at the moment, and the replacement cost is reduced;
The fixing block 102 is fixedly connected with the second outer die 1, two positioning holes 103 are staggered, so that the position of the second outer die 1 is conveniently fixed, the supporting plates 203 are symmetrically arranged at the top ends of the first outer die 104 and the third outer die 107 respectively, the supporting plates are fixedly connected with the supporting plates, the positioning rods 2 are conveniently inserted into the positioning holes 103, the positioning rods 2 penetrate through the supporting plates 203 and are fixedly connected with the pulling plates 204, two ends of the springs 201 are fixedly connected with the supporting plates 203 and the positioning blocks 202 respectively, the positioning rods are conveniently separated from the positioning holes 103, stepped extrusion pads are arranged on two side surfaces, close to the first outer die 104 and the third outer die 107, of the second outer die 1, grooves for adapting to the extrusion pads are formed on one side surfaces, close to the second outer die 1, of the first outer die 104 and the third outer die 107 are conveniently and limitedly installed on the second outer die 1 and the first outer die 104 and the third outer die, insertion blocks are conveniently arranged between the supporting plates 203 and the first outer die 104 and the third outer die 107 through bolt connection, insertion blocks are conveniently arranged inside the insertion holes, and diameter shrinkage cavities are conveniently reduced.
The working flow of the utility model is as follows: when the bolt cold heading die is used, raw materials are firstly sent into the first internal die 105, the first push rod 106 pushes the raw materials to be subjected to diameter reduction processing in the first internal die 105 in combination with the second internal die 101 and the third internal die, the second internal die 101 is a diameter reduction part, the second internal die 101 is worn seriously, the second internal die 101 needs to be replaced after being worn, at the moment, the connection relation between the positioning rod 2 and the pulling plate 204 is fixed connection, under the condition that the connection relation between the two ends of the spring 201 and the supporting plate 203 and the positioning block 202 is fixed connection respectively, the pulling plate 204 is pulled to pull the pulling plate 204, at the moment, the pulling plate 204 drives the positioning rod 2 to compress the spring 201 to shrink, the positioning rod 2 is separated from the inside of the positioning hole 103, then the extrusion pad of the new die is reinstalled after being aligned with the groove, the pulling plate 204 is loosened to limit the fixed block 102 times, at the moment, the whole diameter reduction die is not required to be replaced, and the replacement cost is reduced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a bolt cold heading mould, includes second external mould (1), its characterized in that: the inside of second external mold (1) is equipped with second centre form (101), the top and the bottom of second centre form (101) all are equipped with fixed block (102), the both sides of fixed block (102) are equipped with locating hole (103), the inside of locating hole (103) is equipped with locating lever (2), the outside of locating lever (2) is equipped with spring (201), the one end of spring (201) is equipped with locating piece (202), the other end of spring (201) is equipped with backup pad (203), the one end of locating lever (2) is equipped with arm-tie (204), one side of second external mold (1) is equipped with first external mold (104), first internal mold (104) in-connection has first centre form (105), first internal mold (105) laminating slides and is used for pushing away from first push rod (106) of material, one side that first external mold (104) were kept away from to second external mold (1) is equipped with third external mold (107), third external mold (107) in-connection has third internal mold (108), second internal mold (108) in-connection has second push rod (109) that is used for unloading.
2. The bolt cold heading die as defined in claim 1, wherein: the fixing block (102) is fixedly connected with the second outer die (1), and the two positioning holes (103) are staggered with each other.
3. The bolt cold heading die as defined in claim 1, wherein: the supporting plates (203) are symmetrically arranged at the top ends of the first outer die (104) and the third outer die (107) respectively and are fixedly connected with the first outer die and the third outer die.
4. The bolt cold heading die as defined in claim 1, wherein: the positioning rod (2) penetrates through the supporting plate (203) and is fixedly connected with the pulling plate (204), and two ends of the spring (201) are fixedly connected with the supporting plate (203) and the positioning block (202) respectively.
5. The bolt cold heading die as defined in claim 1, wherein: the two side surfaces of the second outer die (1) close to the first outer die (104) and the third outer die (107) are provided with stepped extrusion pads, and one side surface of the first outer die (104) and one side surface of the third outer die (107) close to the second outer die (1) are provided with grooves for being matched with the extrusion pads.
6. The bolt cold heading die as defined in claim 1, wherein: the support plate (203) is connected with the first outer die (104) and the third outer die (107) through bolts, a jack is arranged in the second inner die (101), and a plug block is arranged in the jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322268542.4U CN220901784U (en) | 2023-08-22 | 2023-08-22 | Bolt cold heading mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322268542.4U CN220901784U (en) | 2023-08-22 | 2023-08-22 | Bolt cold heading mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220901784U true CN220901784U (en) | 2024-05-07 |
Family
ID=90921150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322268542.4U Active CN220901784U (en) | 2023-08-22 | 2023-08-22 | Bolt cold heading mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220901784U (en) |
-
2023
- 2023-08-22 CN CN202322268542.4U patent/CN220901784U/en active Active
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