CN219169520U - But reducing quick forging machine - Google Patents

Abstract

The utility model provides a variable-diameter quick forging machine, and belongs to the technical field of quick forging machines; the variable diameter quick forging machine comprises a platform and an output shaft, and the variable diameter quick forging machine further comprises: the device comprises an upper die body, a first chute, an upper pressing block, a first sliding block, a first connecting shaft, a lower die body, a second chute, a lower pressing block, a second sliding block and a second connecting shaft; the lower pressing block is arranged in the lower die body and connected with the lower die body through the second connecting shaft, so that the lower pressing block is detachably connected with the lower die body, and the lower pressing block is convenient to detach from the lower die body. Because last briquetting detachable installs on last die body, and lower briquetting detachable installs on lower die body, consequently accessible change briquetting and lower briquetting adjust the diameter in first recess and the second recess to adjust quick forging machine forging and pressing diameter, and then promote the suitability of product.

Description

But reducing quick forging machine

Technical Field

The utility model belongs to the technical field of quick forging machines, and particularly relates to a variable-diameter quick forging machine.

Background

In the related art, the round bar is forged by a quick forging machine, and in the forging process, the round bar is forged by matching an upper forging die with a lower forging die with a circular arc shape.

The prior art (application number 201420540641.1) discloses a rapid forging machine radial forging die in which the applicability of the product is reduced because the inner diameters of the upper and lower forging dies cannot be adjusted.

Disclosure of Invention

In order to solve the problem that the inner diameters of the upper forging die and the lower forging die in the prior art cannot be adjusted, so that the applicability of products is reduced, the utility model provides the variable-diameter quick forging machine, which adopts the structure that an upper pressing block is detachably arranged on an upper die body and a lower pressing block is detachably arranged on a lower die body, so that the diameters in a first groove and a second groove can be adjusted by replacing the upper pressing block and the lower pressing block, the forging diameter of the quick forging machine is adjusted, and the applicability effect of the products is improved. The specific technical scheme is as follows:

the utility model provides a variable diameter quick forging machine, variable diameter quick forging machine includes platform and output shaft, and variable diameter quick forging machine still includes: the device comprises an upper die body, a first chute, an upper pressing block, a first sliding block, a first connecting shaft, a lower die body, a second chute, a lower pressing block, a second sliding block and a second connecting shaft; the bottom of the upper die body is provided with a first mounting groove, and the upper die body is connected with the output shaft; the two first sliding grooves are oppositely arranged on the two inner walls of the first mounting groove; the upper pressing block is internally provided with a first groove, and is embedded into the first mounting groove; the two first sliding blocks are arranged on two sides of the upper pressing block, and the first sliding blocks are embedded into the first sliding grooves; the first connecting shaft sequentially passes through the first sliding block and the upper die body; the bottom of the lower die body is provided with a second mounting groove, and the lower die body is connected with the platform; the two second sliding grooves are oppositely arranged on the two inner walls of the second mounting groove; the lower pressing block is internally provided with a second groove, and is embedded into the second mounting groove; the two second sliding blocks are arranged on two sides of the lower pressing block, and the second sliding blocks are embedded into the second sliding grooves; the second connecting shaft sequentially passes through the second sliding block and the lower die body; wherein the first groove is opposite to the second groove.

In addition, the variable diameter quick forging machine provided by the technical scheme of the utility model can also have the following additional technical characteristics:

in the above technical scheme, the variable diameter quick forging machine further comprises: the first operation groove, the first fixing plate, the first spring and the first positioning rod; the first operation groove is arranged on the upper die body in a penetrating way, and at least part of the upper pressing block is embedded in the first operation groove; the two first fixing plates are fixed in the first operation groove and are positioned at two sides of the upper die body; one end of the first spring is connected with the first fixed plate; the first positioning rod is connected with the other end of the first spring, and the first positioning rod is embedded into the upper pressing block.

In the above technical scheme, the variable diameter quick forging machine further comprises: the second operation groove, the second fixing plate, the second spring and the second positioning rod; the second operation groove is arranged on the lower die body in a penetrating way, and at least part of the lower pressing block is embedded in the second operation groove; the two second fixing plates are fixed in the second operation groove and are positioned at two sides of the lower die body; one end of the second spring is connected with the second fixed plate; the second locating rod is connected with the other end of the second spring, and the second locating rod is embedded into the lower pressing block.

In the above technical scheme, the variable diameter quick forging machine further comprises: the first external thread, the first connecting nut, the second external thread and the second connecting nut; the first external threads are arranged at two ends of the first connecting shaft; the first connecting nuts are internally provided with first internal threads, the two first connecting nuts are sleeved at two ends of the first connecting shaft, and the two first connecting nuts are respectively attached to the upper die body; the second external threads are arranged at two ends of the second connecting shaft; the second connecting nuts are internally provided with second internal threads, the two second connecting nuts are sleeved at two ends of the second connecting shaft, and the two second connecting nuts are respectively attached to the lower die body; wherein, first external screw thread and first internal screw thread looks adaptation, second external screw thread and second internal screw thread looks adaptation.

In the above technical scheme, the variable diameter quick forging machine further comprises: the first accommodating hole, the second accommodating hole and the buffer spring; at least two first accommodating holes are formed in the upper die body; at least two second accommodating holes are arranged on the lower die body, and the second accommodating holes are opposite to the first accommodating holes; at least two buffer springs are inserted into the first receiving hole and the second receiving hole.

In the above technical scheme, the variable diameter quick forging machine further comprises: a guide rod; at least two guide rods are simultaneously embedded in the first accommodating hole and the second accommodating hole, and the guide rods penetrate through the buffer springs.

Compared with the prior art, the variable-diameter quick forging machine has the beneficial effects that:

1. install in last die body through last briquetting to be connected last briquetting and last die body through first connecting axle, in order to realize last briquetting and last die body detachable connection, thereby realize being convenient for dismantle last briquetting from last die body. The lower pressing block is arranged in the lower die body and connected with the lower die body through the second connecting shaft, so that the lower pressing block is detachably connected with the lower die body, and the lower pressing block is convenient to detach from the lower die body. Because last briquetting detachable installs on last die body, and lower briquetting detachable installs on lower die body, consequently accessible change briquetting and lower briquetting adjust the diameter in first recess and the second recess to adjust quick forging machine forging and pressing diameter, and then promote the suitability of product.

2. When the upper pressing block is embedded into the first operation groove from bottom to top, the first positioning rod is embedded into the upper pressing block, so that the upper pressing block is pre-positioned, the first connecting shaft can conveniently penetrate through the upper pressing block and the upper die body in sequence, and the assembly efficiency of products is improved. When the upper pressing block is required to be detached from the upper die body, the first positioning rod is pulled, so that the first positioning rod is moved out of the upper pressing block, and meanwhile, the first connecting shaft is pulled out, so that the upper pressing block is detached conveniently.

3. When the lower pressing block is embedded into the second operation groove from top to bottom, the second positioning rod is embedded into the lower pressing block, so that the lower pressing block is pre-positioned, the second connecting shaft can conveniently penetrate through the lower pressing block and the lower die body in sequence, and the assembly efficiency of products is improved. When the lower pressing block is required to be detached from the lower die body, the second positioning rod is pulled, so that the second positioning rod is moved out of the lower pressing block, and meanwhile, the second connecting shaft is pulled out, so that the lower pressing block is convenient to detach.

4. Through setting up the both ends at first connecting axle with first external screw thread, with two first coupling nut suit at the both ends of first connecting axle to laminate first coupling nut and last die body mutually, so as to realize fixing first connecting axle on last die body, thereby promote the stability of first connecting axle. Through setting up the both ends at the second connecting axle with the second external screw thread, with two second coupling nut suit at the both ends of second connecting axle to laminate second coupling nut and last die body mutually, so as to realize fixing the second connecting axle on last die body, thereby promote the stability of second connecting axle.

5. At least two first accommodating holes are formed in the upper die body, at least two second accommodating holes are formed in the lower die body, the second accommodating holes are opposite to the first accommodating holes, and at the same time, at least two buffer springs are embedded into the first accommodating holes and the second accommodating holes, so that when the upper die body moves downwards, the buffer springs are in contact with the upper die body and compress the buffer springs, the speed of downward movement of the upper die body is reduced by the buffer springs, and impact force of the upper die body to the lower die body is reduced.

6. Through with at least two guide bars simultaneously embedding first accommodation hole and second accommodation hole to realize that the upper die body removes along the guide bar, take place the skew when avoiding the upper die body to remove, thereby promote the stability that the upper die body removed. The guide rod penetrates through the buffer spring to avoid bending of the buffer spring, so that stability of the buffer spring is improved.

Drawings

FIG. 1 is an elevation view of a variable diameter quick forging machine of the present utility model;

FIG. 2 is a cross-sectional view of a variable diameter quick forging machine of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is a perspective view of an upper mold body of the present utility model;

FIG. 6 is a perspective view of a lower mold body of the present utility model;

wherein, the correspondence between the reference numerals and the component names in fig. 1 to 6 is:

10 platform, 11 output shaft, 12 upper die body, 13 first mounting groove, 14 first chute, 15 upper press block, 16 first slider, 17 first groove, 18 first connecting shaft, 19 lower die body, 20 second mounting groove, 21 second chute, 22 lower press block, 23 second groove, 24 second slider, 25 second connecting shaft, 26 first operation groove, 27 first fixing plate, 28 first spring, 29 first positioning rod, 30 second operation groove, 31 second fixing plate, 32 second spring, 33 second positioning rod, 34 first connecting nut, 35 second connecting nut, 36 first accommodation hole, 37 second accommodation hole, 38 buffer spring, 39 guide rod.

Detailed Description

The utility model will be further described with reference to specific embodiments and figures 1-6, but the utility model is not limited to these embodiments.

As shown in fig. 1 to 6, the variable diameter rapid forging machine includes a platform 10 and an output shaft 11, and further includes: the upper die body 12, the first sliding chute 14, the upper pressing block 15, the first sliding block 16, the first connecting shaft 18, the lower die body 19, the second sliding chute 21, the lower pressing block 22, the second sliding block 24 and the second connecting shaft 25; the bottom of the upper die body 12 is provided with a first mounting groove 13, and the upper die body 12 is connected with the output shaft 11; the two first sliding grooves 14 are oppositely arranged on the two inner walls of the first mounting groove 13; the upper pressing block 15 is internally provided with a first groove 17, and the upper pressing block 15 is embedded into the first mounting groove 13; two first sliding blocks 16 are arranged on two sides of the upper pressing block 15, and the first sliding blocks 16 are embedded into the first sliding grooves 14; the first connecting shaft 18 sequentially passes through the first slider 16 and the upper die body 12; the bottom of the lower die body 19 is provided with a second mounting groove 20, and the lower die body 19 is connected with the platform 10; the two second sliding grooves 21 are oppositely arranged on the two inner walls of the second mounting groove 20; the lower pressing block 22 is internally provided with a second groove 23, and the lower pressing block 22 is embedded into the second mounting groove 20; two second sliding blocks 24 are arranged at two sides of the lower pressing block 22, and the second sliding blocks 24 are embedded into the second sliding grooves 21; the second connecting shaft 25 sequentially passes through the second slide block 24 and the lower die body 19; wherein the first recess 17 is opposite to the second recess 23.

The upper die body 12 is connected with the output shaft 11, so that the output shaft 11 drives the upper die body 12 to move up and down; mounting the upper press block 15 in the upper die body 12 by disposing the first mounting groove 13 on the upper die body 12, and embedding the upper press block 15 in the first mounting groove 13; the first sliding blocks 16 are arranged at two sides of the upper pressing block 15 by arranging the first sliding grooves 14 on the inner wall of the first mounting groove 13, and the first sliding blocks 16 are embedded into the first sliding grooves 14 so as to prevent the upper pressing block 15 and the upper die body 12 from being relatively deviated; the first connecting shaft 18 sequentially passes through the first sliding block 16 and the upper die body 12 to connect the upper pressing block 15 with the upper die body 12, so that the upper die body 12 drives the upper pressing block 15 to move up and down. The lower die body 19 is connected with the platform 10 to realize the support of the lower die body 19 by the platform 10; mounting the lower press block 22 in the lower die body 19 is achieved by disposing the second mounting groove 20 on the lower die body 19, and embedding the lower press block 22 in the second mounting groove 20; by disposing the second slide grooves 21 on the inner wall of the second mounting groove 20, disposing the second slide blocks 24 on both sides of the lower press block 22, and embedding the second slide blocks 24 into the second slide grooves 21, the lower press block 22 and the lower die body 19 are prevented from being relatively deviated; the second connecting shaft 25 sequentially passes through the second sliding block 24 and the lower die body 19 to connect the lower pressing block 22 with the lower die body 19, so that the lower pressing block 22 is prevented from being separated from the lower die body 19, and the stability of the lower pressing block 22 is improved. Forging the forging by mating the first groove 17 with the second groove 23 is achieved by opposing the first groove 17 with the second groove 23.

With the above structure, the upper pressing block 15 is installed in the upper die body 12, and the upper pressing block 15 is connected with the upper die body 12 through the first connecting shaft 18, so that the upper pressing block 15 is detachably connected with the upper die body 12, and the upper pressing block 15 is conveniently detached from the upper die body 12. The lower pressing block 22 is installed in the lower die body 19, and the lower pressing block 22 is connected with the lower die body 19 through the second connecting shaft 25, so that the lower pressing block 22 is detachably connected with the lower die body 19, and the lower pressing block 22 is convenient to detach from the lower die body 19. Because the upper pressing block 15 is detachably arranged on the upper die body 12, and the lower pressing block 22 is detachably arranged on the lower die body 19, the diameters in the first groove 17 and the second groove 23 can be adjusted by replacing the upper pressing block 15 and the lower pressing block 22, so that the forging diameter of the quick forging machine can be adjusted, and the applicability of products can be improved.

Specifically, the upper die body 12 is connected to the output shaft 11 by bolts, and the lower die body 19 is connected to the platform 10 by bolts.

In an embodiment of the present utility model, as shown in fig. 1 to 6, the variable diameter rapid forging machine further includes: a first operation groove 26, a first fixing plate 27, a first spring 28, and a first positioning lever 29; the first operation groove 26 is arranged on the upper die body 12 in a penetrating way, and at least part of the upper pressing block 15 is embedded in the first operation groove 26; two first fixing plates 27 are fixed in the first operation groove 26, and the two first fixing plates 27 are positioned at two sides of the upper die body 12; one end of the first spring 28 is connected to the first fixing plate 27; the first positioning rod 29 is connected with the other end of the first spring 28, and the first positioning rod 29 is embedded in the upper pressing block 15.

By disposing the first operation groove 26 through the upper die body 12 and embedding at least part of the upper press block 15 into the first operation groove 26; by fixing the first fixing plate 27 in the first operation groove 26, one end of the first spring 28 is connected with the first fixing plate 27, and the other end of the first spring 28 is connected with the first positioning rod 29, so that the first fixing plate 27 is connected with the first positioning rod 29 through the first spring 28; meanwhile, the first positioning rod 29 is embedded into the upper pressing block 15, so that the upper pressing block 15 is fixed in the first operation groove 26 through the first positioning rod 29, and the upper pressing block 15 is quickly installed in the first operation groove 26.

With the above structure, when the upper pressing block 15 is embedded into the first operation groove 26 from bottom to top, the first positioning rod 29 is embedded into the upper pressing block 15, so as to perform the pre-positioning on the upper pressing block 15, so that the first connecting shaft 18 sequentially passes through the upper pressing block 15 and the upper die body 12, and the assembly efficiency of the product is improved. When the upper press block 15 needs to be detached from the upper die body 12, the first positioning rod 29 is pulled to move the first positioning rod 29 out of the upper press block 15, and simultaneously, the first connecting shaft 18 is pulled out, so that the upper press block 15 is detached.

In an embodiment of the present utility model, as shown in fig. 1 to 6, the variable diameter rapid forging machine further includes: a second operation groove 30, a second fixing plate 31, a second spring 32, and a second positioning rod 33; the second operation groove 30 is arranged on the lower die body 19 in a penetrating way, and at least part of the lower pressing block 22 is embedded into the second operation groove 30; two second fixing plates 31 are fixed in the second operation groove 30, and the two second fixing plates 31 are positioned at two sides of the lower die body 19; one end of the second spring 32 is connected to the second fixing plate 31; the second positioning rod 33 is connected to the other end of the second spring 32, and the second positioning rod 33 is embedded in the lower pressing block 22.

By disposing the second operation groove 30 through the lower die body 19 and inserting at least the lower press block 22 into the second operation groove 30; by fixing the second fixing plate 31 in the second operation groove 30, one end of the second spring 32 is connected to the second fixing plate 31, and the other end of the second spring 32 is connected to the second positioning rod 33, so that the second fixing plate 31 is connected to the second positioning rod 33 through the second spring 32; meanwhile, the second positioning rod 33 is embedded in the lower press block 22, so that the lower press block 22 is fixed in the second operation groove 30 by the second positioning rod 33, and the lower press block 22 is rapidly installed in the second operation groove 30.

With the above structure, when the lower pressing block 22 is embedded into the second operation groove 30 from top to bottom, the second positioning rod 33 is embedded into the lower pressing block 22, thereby realizing the pre-positioning of the lower pressing block 22, so that the second connecting shaft 25 sequentially passes through the lower pressing block 22 and the lower die body 19, and improving the assembly efficiency of the product. When the lower press block 22 needs to be detached from the lower die body 19, the second positioning rod 33 is pulled to move the second positioning rod 33 out of the lower press block 22, and simultaneously, the second connecting shaft 25 is pulled out, so that the lower press block 22 is convenient to detach.

In an embodiment of the present utility model, as shown in fig. 1 to 6, the variable diameter rapid forging machine further includes: a first external thread, a first coupling nut 34, a second external thread, and a second coupling nut 35; the first external threads are provided at both ends of the first connecting shaft 18; the first connecting nuts 34 are internally provided with first internal threads, the two first connecting nuts 34 are sleeved at two ends of the first connecting shaft 18, and the two first connecting nuts 34 are respectively attached to the upper die body 12; second external threads are provided at both ends of the second connecting shaft 25; the second connecting nuts 35 are internally provided with second internal threads, the two second connecting nuts 35 are sleeved at two ends of the second connecting shaft 25, and the two second connecting nuts 35 are respectively attached to the lower die body 19; wherein, first external screw thread and first internal screw thread looks adaptation, second external screw thread and second internal screw thread looks adaptation.

Through setting up first external screw thread at the both ends of first connecting axle 18, suit two first coupling nuts 34 at the both ends of first connecting axle 18 to laminate first coupling nut 34 and last die body 12 mutually, so as to realize fixing first connecting axle 18 on last die body 12, thereby promote the stability of first connecting axle 18. Through setting up the both ends at second connecting axle 25 with the second external screw thread, with two second coupling nut 35 suit at the both ends of second connecting axle 25 to laminate second coupling nut 35 and last die body 12 mutually, in order to realize fixing second connecting axle 25 on last die body 12, thereby promote the stability of second connecting axle 25.

In an embodiment of the present utility model, as shown in fig. 1 to 6, the variable diameter rapid forging machine further includes: a first accommodation hole 36, a second accommodation hole 37, and a buffer spring 38; at least two first receiving holes 36 are provided in the upper mold body 12; at least two second receiving holes 37 are provided on the lower mold body 19, and the second receiving holes 37 are opposite to the first receiving holes 36; at least two buffer springs 38 are inserted into the first receiving hole 36 and the second receiving hole 37.

At least two first receiving holes 36 are formed in the upper die body 12, at least two second receiving holes 37 are formed in the lower die body 19, and the second receiving holes 37 are opposite to the first receiving holes 36, and at the same time, at least two buffer springs 38 are inserted into the first receiving holes 36 and the second receiving holes 37, so that when the upper die body 12 moves downward, the buffer springs 38 are in contact with the upper die body 12, and the buffer springs 38 are compressed, thereby reducing the downward moving speed of the upper die body 12, and reducing the impact force of the upper die body 12 on the lower die body 19.

In an embodiment of the present utility model, as shown in fig. 1 to 6, the variable diameter rapid forging machine further includes: a guide bar 39; at least two guide rods 39 are simultaneously inserted into the first and second receiving holes 36 and 37, and the guide rods 39 pass through the buffer springs 38.

By simultaneously embedding at least two guide rods 39 into the first accommodating hole 36 and the second accommodating hole 37, the upper die body 12 can move along the guide rods 39, so that the upper die body 12 is prevented from shifting when moving, and the moving stability of the upper die body 12 is improved. By passing the guide rod 39 through the buffer spring 38, the buffer spring 38 is prevented from being bent, thereby improving the stability of the buffer spring 38.

In the description of the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present utility model, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In the present utility model, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. A variable diameter rapid forging machine comprising a platform and an output shaft, characterized in that the variable diameter rapid forging machine further comprises:

the upper die body is provided with a first mounting groove at the bottom and is connected with the output shaft;

the first sliding grooves are oppositely arranged on the two inner walls of the first mounting groove;

the upper pressing block is internally provided with a first groove, and is embedded into the first mounting groove;

the first sliding blocks are arranged on two sides of the upper pressing block, and are embedded into the first sliding groove;

the first connecting shaft sequentially penetrates through the first sliding block and the upper die body;

the bottom of the lower die body is provided with a second mounting groove, and the lower die body is connected with the platform;

the two second sliding grooves are oppositely arranged on the two inner walls of the second mounting groove;

the lower pressing block is internally provided with a second groove, and is embedded into the second mounting groove;

the two second sliding blocks are arranged on two sides of the lower pressing block, and are embedded into the second sliding groove;

the second connecting shaft sequentially penetrates through the second sliding block and the lower die body;

wherein the first groove is opposite to the second groove.

2. The variable diameter quick forging machine as recited in claim 1, further comprising:

the first operation groove is arranged on the upper die body in a penetrating way, and at least part of the upper pressing block is embedded into the first operation groove;

the first fixing plates are fixed in the first operation groove, and the two first fixing plates are positioned on two sides of the upper die body;

one end of the first spring is connected with the first fixing plate;

the first positioning rod is connected with the other end of the first spring, and the first positioning rod is embedded into the upper pressing block.

3. The variable diameter quick forging machine as recited in claim 2, further comprising:

the second operation groove is arranged on the lower die body in a penetrating mode, and at least part of the lower pressing block is embedded into the second operation groove;

the two second fixing plates are fixed in the second operation groove and are positioned at two sides of the lower die body;

one end of the second spring is connected with the second fixing plate;

the second positioning rod is connected with the other end of the second spring, and the second positioning rod is embedded into the lower pressing block.

4. A variable diameter quick forging machine as recited in claim 3, further comprising:

the first external threads are arranged at two ends of the first connecting shaft;

the first connecting nuts are internally provided with first internal threads, the two first connecting nuts are sleeved at two ends of the first connecting shaft, and the two first connecting nuts are respectively attached to the upper die body;

the second external threads are arranged at two ends of the second connecting shaft;

the second connecting nuts are internally provided with second internal threads, the two second connecting nuts are sleeved at two ends of the second connecting shaft, and the two second connecting nuts are respectively attached to the lower die body;

the first external thread is matched with the first internal thread, and the second external thread is matched with the second internal thread.

5. The variable diameter quick forging machine as recited in claim 1, further comprising:

the first accommodating holes are formed in the upper die body;

the second accommodating holes are formed in the lower die body, and the second accommodating holes are opposite to the first accommodating holes;

and at least two buffer springs are embedded into the first accommodating hole and the second accommodating hole.

6. The variable diameter quick forging machine as recited in claim 5, further comprising:

and the guide rods are simultaneously embedded into the first accommodating holes and the second accommodating holes, and penetrate through the buffer springs.

Images