CN221064283U - Cold heading die for deep hole part forming - Google Patents
Cold heading die for deep hole part forming Download PDFInfo
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- CN221064283U CN221064283U CN202322294303.6U CN202322294303U CN221064283U CN 221064283 U CN221064283 U CN 221064283U CN 202322294303 U CN202322294303 U CN 202322294303U CN 221064283 U CN221064283 U CN 221064283U
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- 239000000463 material Substances 0.000 claims abstract description 5
- 230000004323 axial length Effects 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 241001391944 Commicarpus scandens Species 0.000 description 5
- 239000000725 suspension Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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Abstract
The utility model provides a cold heading die for forming deep hole parts, which comprises a material arranging die, a plurality of deep hole type front dies and a deep hole forming die, wherein the main die of the deep hole forming die arranged in a main die shell comprises a front die and a rear die which are sequentially arranged from one end of a die opposite to the front die, an elastic piece is arranged between the front die and the rear die, and the die can push the front die to move towards the rear die to compress the elastic piece; a main die ejector pin is fixedly arranged in the main die and comprises a forming rod positioned in the front die and a handle positioned in the rear die; the main mold ejector pin is sleeved with a pushable main mold ejector tube which is respectively in sliding fit with the inner walls of the front mold and the rear mold, the main mold ejector tube is provided with a first tube part and a second tube part with the inner diameter larger than that of the first tube part, the inner wall of the first tube part is in sliding fit with at least part of the forming rod, and the inner wall of the second tube part is in sliding fit with the handle part; the end surface of the first pipe part facing the die can form a closed die cavity with the part of the forming rod away from the handle part, the inner wall of the front die and the die.
Description
Technical Field
The utility model belongs to the technical field of fastener forming, and particularly relates to a cold heading die for deep hole part forming.
Background
The deep hole is a hole with the ratio of the hole depth to the hole diameter being greater than 5 and smaller than 10, along with the gradual expansion of the application range of the fastener, a part is required to be processed with the deep hole, so that the part is finally formed into a deep hole part comprising a flange head, a rod part connected with the flange head and a first inner hole and a second inner hole which are sequentially communicated inwards from one end of the rod part, which is far away from the flange head, the hole diameter of the first inner hole is slightly greater than that of the second inner hole, the ratio of the hole depth of the first inner hole to the hole diameter is about 4.8, the range of the deep hole processing is approximate, and the ratio of Kong Shenzhi of the first inner hole to the second inner hole to the hole diameter of the second inner hole is about 8.6. If the deep hole part is processed by direct cold heading, the front of the hole forming die is slender, and the hole forming process is easy to break, in the prior art, the deep hole part is generally prepared by cold heading the flange head part, the rod part and the first inner hole, then the drilling operation is continued by using a machining mode, then the boring is carried out, thus forming the second inner hole, and finally the screw forming of the inner hole can be carried out by using a screw tap. Therefore, in order to maintain the concentricity of the final hole forming, the deep hole part needs to reduce the machine adjusting time, the machining period is long, the concentricity consistency of the products in batches is not facilitated, and the machining holes are adopted, so that the raw materials are wasted.
Disclosure of utility model
In view of the problems in the prior art, the main purpose of the utility model is to provide a cold heading die for deep hole part forming, which has stable structure and long service life, can directly cold-heading deep holes of deep hole parts, effectively ensures the concentricity and the forming size of the deep holes, and improves the processing efficiency of the deep hole parts.
The aim of the utility model is achieved by the following technical scheme:
The utility model provides a cold heading die for forming a deep hole part, which comprises a material arranging die, a plurality of deep hole type front dies and a deep hole forming die, wherein a main die of the deep hole forming die is arranged in a main die shell, the main die comprises a front die and a rear die which are sequentially arranged from one end of a die opposite to the front die, an elastic piece is arranged between the front die and the rear die, and the die can push the front die to move towards the rear die to compress the elastic piece; a main die ejector pin is fixedly arranged in the main die and comprises a forming rod positioned in the front die and a handle positioned in the rear die; the main die ejector pin is sleeved with a main die pushing pipe capable of being pushed, the main die pushing pipe is respectively in sliding fit with the inner walls of the front die and the rear die, the main die pushing pipe is provided with a first pipe part and a second pipe part with the inner diameter larger than that of the first pipe part, the inner wall of the first pipe part is in sliding fit with at least part of the forming rod, and the inner wall of the second pipe part is in sliding fit with the handle part; the end surface of the first pipe part of the main mould pushing pipe facing the stamping die can form a closed die cavity with the part of the forming rod away from the handle part, the inner wall of the front mould and the stamping die.
As a further description of the above technical solution, the forming bar includes a first forming bar and a second forming bar having a smaller diameter than the first forming bar, the first forming bar being axially located between the second forming bar and the shank;
The first forming rod is in sliding fit with the inner wall of the first pipe part of the main mold push pipe.
As a further description of the above technical solution, the axial length of the first forming rod is greater than the axial length of the second forming rod; wherein,
The ratio of the axial length of the first forming rod to the diameter of the first forming rod is between 5 and 10;
The ratio of the sum of the axial lengths of the first forming rod and the second forming rod to the diameter of the second forming rod is between 5 and 10.
As a further description of the above technical solution, the main mold ejector pin includes a molding rod integrally connected with the shank.
As a further description of the above technical solution, a push tube pad is disposed at one end of the second tube portion of the main mold push tube, which is away from the first tube portion; the push pipe pad block is sleeved on the main die ejector pin and is in sliding fit with the inner wall of the rear die.
As a further description of the above technical solution, a front cushion block is disposed in an end of the rear mold away from the front mold, and an end of the push tube cushion block away from the push tube may abut against an end of the front cushion block toward the push tube.
As a further description of the above technical solution, the end face of the rear mold facing away from the front mold is fixedly connected with a rear cushion block, and one end of the handle of the main mold ejector pin facing away from the forming rod is disposed on the end face of the rear cushion block facing toward the front cushion block.
As further description of the technical scheme, one side of the rear cushion block, which is away from the rear die, is provided with a main die ejector rod, the main die ejector rod sequentially penetrates through the rear cushion block and the front cushion block along the axial direction, and one end of the main die ejector rod, which faces the rear cushion block, is contacted with one end of the push tube cushion block, which is away from the push tube.
As a further description of the above technical solution, the mold further includes an elastic buffer member radially disposed in the rear cushion block, and one end of the elastic buffer member facing the main mold ejector rod is in frictional contact with the main mold ejector rod.
In summary, the outstanding effects of the utility model are as follows:
The cold heading die for deep hole part forming provided by the utility model has the advantages that the main die ejector pin is fixedly arranged to enable the main die ejector tube sleeved on the main die ejector pin to be pushed, meanwhile, the outer wall of the main die ejector tube is always stably limited by the inner wall of the main die, the main die ejector tube is provided with the first tube part and the second tube part with the inner diameter larger than that of the first tube part, the inner wall of the first tube part is always in sliding fit with at least part of the forming rod of the main die ejector pin in the axial direction, and the inner wall of the second tube part is always in sliding fit with the handle part of the main die ejector pin in the axial direction, so that the suspension length of the forming rod of the main die ejector pin is indirectly shortened in the process of forming the deep hole of the part, the central axial moment of the main die ejector pin is ensured to be kept stable, the main die ejector pin is not easy to break, and the whole service life of the die is effectively prolonged; the main die ejector pin and other parts of die components are matched with stable structure, so that the size is easier to control, the concentricity of the first deep hole and the second deep hole formed by direct cold heading of the deep hole part is high, the whole inner hole is high in quality, the subsequent process can be directly carried out, and the method is more suitable for batch production of the deep hole part;
After the deep hole of the deep hole part is formed, the stamping die of the cold heading die for forming the deep hole part is reversely far away from the main die, and the front die and the elastic piece of the main die synchronously and reversely reset. After that, the main die pushing pipe is reversely pushed by the driving component to push the formed deep hole part out of the main die, and the front end of the main die pushing pipe is pushed to be flush with the end face of the front die, which faces the stamping die, so that when the next preset blank is transferred to the end face of the main die, which faces the stamping die, the main die pushing pipe can be contacted with the main die at the first time, synchronously enters the main die, the moment floating support of the preset blank is ensured, and the dimensional control of the processing of the preset blank is ensured.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings may be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a first working state diagram of a deep hole forming die according to an embodiment of the present utility model;
FIG. 2 is a second working state diagram of a deep hole forming die according to an embodiment of the present utility model;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a cold heading forming diagram of a deep hole part in an embodiment of the utility model.
Reference numerals illustrate:
1. A main mould shell; 2. stamping die; 31. a front mold; 32. a rear mold; 4. a main die ejector pin; 41. a handle; 42. a first forming bar; 43. a second forming bar; 5. pushing the pipe by the main die; 51. a first pipe section; 52. a second pipe section; 53. pushing the pipe cushion block; 54. a main die ejector rod; 6. an elastic member; 71. a front cushion block; 72. a rear cushion block; 8. an elastic buffer member; 9. deep hole parts; 91. a flange head; 92. a stem portion; 93. a first bore; 94. a second bore.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "middle", "lower", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The following is a detailed description of embodiments with reference to fig. 1 to 4.
Referring to fig. 1 to 3, the present embodiment provides a cold heading die for forming a deep hole part 9, where the cold heading die for forming a deep hole part 9 includes a monolithic die, a plurality of deep hole front dies, and a deep hole forming die, a main die of the deep hole forming die is disposed in a main die shell 1, the main die includes a front die 31 and a rear die 32 sequentially disposed from one end of a die 2 opposite to the front die 31, an elastic member 6 is further disposed between the front die 31 and the rear die 32, and the die 2 can push the front die 31 to move toward the rear die 32 to compress the elastic member 6; a main die ejector pin 4 fixedly arranged in the main die and comprising a forming rod positioned in the front die 31 and a handle 41 positioned in the rear die 32; the main mold ejector pin 4 is sleeved with a main mold ejector tube 5 capable of being pushed, the main mold ejector tube 5 is respectively in sliding fit with the inner walls of the front mold 31 and the rear mold 32, the main mold ejector tube 5 is provided with a first tube part 51 and a second tube part 52 with the inner diameter larger than that of the first tube part 51, the inner wall of the first tube part 51 is in sliding fit with at least part of the forming rod, and the inner wall of the second tube part 52 is in sliding fit with the handle part 41; the end surface of the first tube portion 51 of the main push tube 5 facing the die 2 can form a closed cavity with the portion of the forming rod remote from the shank 41, the inner wall of the front die 31 and the die 2.
By means of the above structure, the cold heading die for forming the deep hole part 9 comprises a monolith die for shaping blanks cut by wires, the shaped blanks are sequentially fed into the deep hole forming front dies for heading, so that the shaped blanks are formed into preset blanks with flange heads 91, preset rods and first preset inner holes before being fed into the deep hole forming die, the first preset inner holes of the preset blanks extend inwards along the axial direction from one ends of the preset rods, which are away from the flange heads 91, and then the preset blanks are transferred into the deep hole forming die for continuous processing. Before the deep hole forming die is started to form the preset blank, the die 2 of the deep hole forming die moves towards the main die until the die 2 contacts with the front end face of the front die 31 included in the main die, and after the main die push tube 5 is in sliding fit with the front die 31, the inner wall of the first tube portion 51 of the main die push tube 5 is in sliding fit with the forming rod, so that a closed die cavity for forming the preset blank is stably formed between the end face of the main die push tube 51 facing the die 2 and the part of the forming rod away from the handle 41 and the inner walls of the die 2 and the front die 31. As the die 2 proceeds, the front die 31 in the main die shell 1 compresses the elastic member 6 and gradually approaches the rear die 32, so that the material of the preset blank flows in the closed die cavity, the main die ejector pin 4 is fixedly arranged, and the inner wall of the second pipe portion 52 of the main die ejector pipe 5 is also in sliding fit with the handle portion 41 of the main die ejector pin 4, so that the main die ejector pipe 5 moves toward the rear end of the main die ejector pin 4 along the axial direction synchronously along with the flow of the preset blank, and the front end of the main die ejector pipe always supports the flowing material part of the preset blank during the movement. Since the inner diameter of the first pipe portion 51 of the main ejector pin 5 is smaller than that of the second pipe portion 52, the inner wall of the first pipe portion 51 is slidably engaged with the forming rod of the main ejector pin 4, and the inner wall of the second pipe portion 52 is slidably engaged with the shank 41 of the main ejector pin 4, the joint between the first pipe portion 51 and the second pipe portion 52 is pushed up to the joint between the shank 41 of the main ejector pin 4 and the forming rod at most, that is, the first pipe portion 51 does not go beyond the shank 41 of the main ejector pin 4, at this time, the distance of the preset blank flowing in the axial direction reaches a preset value, and the deep hole part 9 is formed, which has a flange head 91, a rod portion 92 and an inner hole extending from one end of the rod portion 92 to one end of the flange head 91 in the axial direction.
After the molding is finished, the die 2 is reversely far away from the main die, and the front die 31 and the elastic piece 6 included in the main die synchronously and reversely reset. Thereafter, the main die pushing tube 5 is reversely pushed by the driving assembly to push the formed deep hole part 9 out of the main die, and the front end of the main die pushing tube is pushed to be flush with the end surface of the front die 31 facing the die 2, so that when the next preset blank is transferred to the end surface of the main die facing the die 2, the first tube part 51 of the main die pushing tube 5 can contact with the end surface of the main die 2 at the first time, and synchronously enter the main die, and the moment floating support of the preset blank is ensured. The outer wall of the main die push tube 5 is always in sliding fit with the inner wall of the main die, the main die push tube 5 always has radial supporting and limiting functions on the forming rod of the main die ejector pin 4, so that the axial center line of the main die ejector pin 4 is kept in a stable state in the part forming process, the front-section suspension length of the forming rod included in the main die ejector pin 4 is relatively shortened and is not easy to break, and the main die push tube 5 is gradually shortened or lengthened in the axial direction to wrap the forming rod, so that the forming rod is not easy to break, the stability of the main die ejector pin 4 in the blank forming process is ensured, and the integral service life of the die is effectively prolonged.
Referring to fig. 1 and 2, in particular, in this embodiment, the die 2 defining the deep hole forming die is located on the left side of a main die included therein, and the main die is located on the right side of the die 2.
Referring to fig. 1 to 3, in particular, in this embodiment, the forming rod of the main mold ejector pin 4 is integrally connected with the handle 41, so as to ensure the mechanical strength of the main mold ejector pin 4, where the forming rod is located at the left side of the handle 41. Further, the forming rod includes a first forming rod 42 and a second forming rod 43, the diameter of the second forming rod 43 is smaller than that of the first forming rod 42, the first forming rod 42 is located between the second forming rod 43 and the handle 41 in the left-right direction, the diameter of the first forming rod is the same as that of the first pre-hole, so that the diameter of the first pre-hole is kept unchanged during the process of forming the second hole 94 by using the second forming rod 43, the second forming rod 43 is used for performing back extrusion stretching on the first pre-hole, so that a second hole 94 is formed at the bottom of the first pre-hole, the pre-set rod is also lengthened to a rod portion 92 conforming to the finished size during the process of forming the second hole 94, and the depth of the first pre-hole is then formed to reach the required depth to form the first hole 93, so that the pre-set blank is formed into the part 9 as shown in fig. 4. In addition, because the outer wall of the main push tube 5 is always in sliding fit with the inner wall of the main die, the first forming rod 42 is always in sliding fit with the inner wall of the first tube portion 51 of the main push tube 5, and the outer wall of the main push tube 5 is in sliding fit with the inner wall of the main die, in the process of forming the first inner hole 93 and the second inner hole 94, the suspension length of the forming rod of the main die thimble 4 is indirectly shortened, the axial center of the main die thimble 4 is ensured to be kept in a stable state, and meanwhile, the main die thimble 4 is not easy to break, so that the service life of the die is prolonged.
Referring to fig. 1 and 2, in particular, in the present embodiment, the axial length of the first forming rod 42 is greater than the axial length of the second forming rod 43; in the upsetting of the preset blank, the left section connected with the second forming rod 43 extends into the first pre-inner hole to protect the first pre-inner hole and prevent the aperture from deforming, as shown in fig. 2 and 3, after the second inner hole 94 of the preset blank is formed, the right section of the first forming rod 42 is still in a sliding fit state with the inner wall of the first pipe portion 51 of the main push pipe 5, and the outer wall of the main push pipe 5 is also in sliding fit with the inner wall of the front mold 31, so that the suspension length of the front end of the main push pipe 4 is shortened. The ratio of the axial length of the first forming rod 42 to the diameter of the first forming rod 42, and the ratio of the sum of the axial lengths of the first forming rod 42 and the second forming rod 43 to the diameter of the second forming rod 43 are all between 5 and 10, so that when the first pre-bore is subjected to back extrusion stretching to form the first bore 93 and the second bore 94, the first forming rod 42 has a sufficient length to protect the aperture of the first pre-bore, and also has a sufficient rear end remaining length to be in sliding fit with the inner wall of the first pipe portion 51 of the main push pipe 5, so that the first bore 93 and the second bore 94 which are sequentially communicated from right to left and have high concentricity are smoothly formed. For example, in this embodiment, the ratio of the hole depth of the first inner hole 93 to the diameter thereof is 4.8, and the ratio of the sum of the hole depths of the first inner hole 93 and the second inner hole 94 to the hole diameter of the second inner hole 94 is 8.6. Of course, in other embodiments, the specific sizing of the first forming bar 42 and the second forming bar 43 may be performed as desired.
With continued reference to fig. 1 to 2, in this embodiment, a tube pushing pad 53 is disposed at an end of the second tube portion 52 of the main push tube 5 facing away from the first tube portion 51, and the tube pushing pad 53 is sleeved on the main push tube 4 and slidably engaged with an inner wall of the rear mold 32, so as to compensate for a radial width of the rear portion of the main push tube 5 to be engaged with the sliding engagement between the front mold 31 and the front outer wall of the main push tube 5, and to engage with the supporting effect of the main push tube 54 on the main push tube in the main push tube, thereby ensuring that the main push tube 5 is stably limited in a radial direction, and keeping a central axis stable in a process of pushing the main push tube 5 in an axial direction.
Specifically, in this embodiment, a front cushion block 71 is disposed in an end of the rear mold 32 away from the front mold 31, and an end of the push tube cushion block 53 facing away from the push tube may abut against an end of the front cushion block 71 facing toward the push tube; the end face of the rear die 32, which is away from the front die 31, is fixedly connected with a rear cushion block 72, and one end of the handle 41 of the main die thimble 4, which is away from the forming rod, is fixedly arranged on the end face of the rear cushion block 72, which is towards the front cushion block 71, so that the forming rod of the main die thimble 4 can perform stable punching operation on parts.
Specifically, in this embodiment, the rear side of the rear cushion block 72 (i.e., the side facing away from the rear mold 32) is provided with a main mold ejector pin 54, and the main mold ejector pin 54 horizontally penetrates through the rear cushion block 72 and the front cushion block 71 in turn to the left, and the front end of the main mold ejector pin contacts the rear end of the push pipe cushion block 53 so as to transmit the pushing force of the machine tool to the push pipe cushion block 53, so that the main mold push pipe 5 disposed in front of the push pipe cushion block 53 can push the formed deep hole part 9 out of the main mold.
Specifically, in this embodiment, an elastic buffer member 8, such as a strip-shaped elastic resin, is radially disposed in the rear cushion block 72, and the end surface of the elastic buffer member facing the main mold ejector pin 54 contacts the wall of the main mold ejector pin 54 to provide a suitable friction resistance for the main mold ejector pin 54 during the process of being pushed back and forth in the horizontal direction, so that the accuracy of the advancing and retreating of the main mold ejector pin 54 is easier to be controlled, and the yield of the deep hole part 9 after cold heading is ensured.
Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any changes, equivalents, modifications and improvements may be made without departing from the spirit and principles of the present utility model.
Claims (9)
1. The cold heading die for forming the deep hole part is characterized by comprising a material arranging die, a plurality of deep hole type front dies and a deep hole forming die, wherein a main die of the deep hole forming die is arranged in a main die shell and comprises a front die and a rear die which are sequentially arranged from one end of a die opposite to the front die, an elastic piece is further arranged between the front die and the rear die, and the die can push the front die to move towards the rear die to compress the elastic piece; a main die ejector pin is fixedly arranged in the main die and comprises a forming rod positioned in the front die and a handle positioned in the rear die; the main die ejector pin is sleeved with a main die pushing pipe capable of being pushed, the main die pushing pipe is respectively in sliding fit with the inner walls of the front die and the rear die, the main die pushing pipe is provided with a first pipe part and a second pipe part with the inner diameter larger than that of the first pipe part, the inner wall of the first pipe part is in sliding fit with at least part of the forming rod, and the inner wall of the second pipe part is in sliding fit with the handle part; the end surface of the first pipe part of the main mould pushing pipe facing the stamping die can form a closed die cavity with the part of the forming rod away from the handle part, the inner wall of the front mould and the stamping die.
2. The cold heading die for deep-hole part forming according to claim 1, wherein the forming rod includes a first forming rod and a second forming rod having a smaller diameter than the first forming rod, the first forming rod being axially located between the second forming rod and the shank;
The first forming rod is in sliding fit with the inner wall of the first pipe part of the main mold push pipe.
3. The cold heading die for deep-hole part molding of claim 2, wherein an axial length of the first molding rod is greater than an axial length of the second molding rod; wherein,
The ratio of the axial length of the first forming rod to the diameter of the first forming rod is between 5 and 10;
The ratio of the sum of the axial lengths of the first forming rod and the second forming rod to the diameter of the second forming rod is between 5 and 10.
4. The cold heading die for deep-hole part molding as defined in claim 1, wherein the main die ejector pin includes a molding rod integrally connected with the shank portion.
5. The cold heading die for deep hole part forming according to claim 1, wherein a push tube cushion block is arranged at one end of the second tube part of the main die push tube, which is away from the first tube part; the push pipe pad block is sleeved on the main die ejector pin and is in sliding fit with the inner wall of the rear die.
6. The cold heading die for deep hole part forming according to claim 5, wherein a front cushion block is arranged in one end of the rear die, which is far away from the front die, and one end of the push tube cushion block, which is far away from the push tube, can be propped against one end of the front cushion block, which is towards the push tube.
7. The cold heading die for deep hole part forming according to claim 6, wherein the end face of the rear die, which faces away from the front die, is fixedly connected with a rear cushion block, and the end face of the handle part of the main die ejector pin, which faces away from the forming rod, is arranged on the end face of the rear cushion block, which faces towards the front cushion block.
8. The cold heading die for deep hole part forming according to claim 7, wherein a main die ejector rod is arranged on one side of the rear cushion block, which faces away from the rear die, and penetrates through the rear cushion block and the front cushion block in sequence along the axial direction, and one end of the main die ejector rod, which faces towards the rear cushion block, is contacted with one end of the push tube cushion block, which faces away from the push tube.
9. The cold heading die for deep-hole part forming according to claim 8, further comprising an elastic buffer member radially provided in the rear pad, one end of the elastic buffer member facing the main die ejector rod being in frictional contact with the main die ejector rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322294303.6U CN221064283U (en) | 2023-08-25 | 2023-08-25 | Cold heading die for deep hole part forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322294303.6U CN221064283U (en) | 2023-08-25 | 2023-08-25 | Cold heading die for deep hole part forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221064283U true CN221064283U (en) | 2024-06-04 |
Family
ID=91252464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322294303.6U Active CN221064283U (en) | 2023-08-25 | 2023-08-25 | Cold heading die for deep hole part forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221064283U (en) |
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2023
- 2023-08-25 CN CN202322294303.6U patent/CN221064283U/en active Active
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