Three-needle die for ejection of bearing cap bolt upper die
Through the three-pin mold design, the coordination of the thimble and the discharging pipe is used to solve the problem of difficult ejection of the bearing cover bolts, and the smooth ejection of the bearing cover bolts is achieved.
Patent Information
- Application Number
- CN202422339855.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-25
AI Technical Summary
When existing molds are processed with bearing cover bolts, the punch needle is prone to stuck in the twelve-shaped head of bearing cover bolts, resulting in difficulty in ejecting.
The three-pin mold design is adopted, including punch, punch needle, first pin pad, thimble, moving carriage, discharging pipe and orientation member. The three thimbles are moved simultaneously and pushed to abut against the outer edge of the bearing cover bolt to achieve the smooth ejection of the bolt.
It effectively solves the problem of difficult ejection of bearing cover bolts, ensures that the bolts can be ejected from the mold smoothly, and avoids the rusher being stuck.
Smart Images
Figure CN223129249U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bolt molds, in particular to a three - needle mold for ejecting the upper mold of a bearing cover bolt. Background Art
[0002] In traditional ordinary bolt processing, the bolts will remain in the lower mold after processing between the upper and lower molds and behind the mold. However, it is not convenient for the operator to take out the processed bolts in the lower mold.
[0003] The existing ejection mechanism includes a punch and a punch pin. Since the upper die head of an ordinary bolt has a simple shape, it almost stays in the lower die during the forming process. After the clamp holds the bolt, the lower die ejects it through the punch pin in the ejection mechanism, which is convenient for the operator to transfer it to the next process.
[0004] However, when the existing mold processes a bearing cover bolt, the bearing cover bolt is usually a cylindrical head bolt with an internal twelve - petal head shape and a relatively thin wall thickness. There is a certain probability that the punch pin will get stuck in its twelve - petal head when ejecting the bearing cover bolt. Therefore, the bearing cover bolt part cannot be smoothly ejected solely by the punch pin. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a three - needle mold for ejecting the upper mold of a bearing cover bolt, aiming to solve the problem that when the existing mold processes a bearing cover bolt, the bearing cover bolt is usually a cylindrical head bolt with an internal twelve - petal head shape and a relatively thin wall thickness. There is a certain probability that the punch pin will get stuck in its twelve - petal head when ejecting the bearing cover bolt. Therefore, the bearing cover bolt part cannot be smoothly ejected solely by the punch pin.
[0006] To achieve the above purpose, the utility model provides a three - needle mold for ejecting the upper mold of a bearing cover bolt, including a punch and a punch pin. The punch pin is located on one side of the punch.
[0007] It further includes an ejection assembly.
[0008] The ejection assembly includes a first needle pad, a thimble, a moving carriage, a stripping tube, and a guiding member. The first needle pad is slidably connected to the punch, connected to the punch pin, and located on the side of the punch close to the punch pin. The moving carriage is connected to the first needle pad through the guiding member and located on the side of the first needle pad close to the punch. The thimble is slidably connected to the first needle pad and located on the side of the first needle pad close to the moving carriage. The stripping tube is fixedly connected to the moving carriage and located on the side of the moving carriage close to the punch pin. The guiding member is arranged on the first needle pad and connected to the moving carriage.
[0009] Among them, the orienting member includes a second needle pad and a bushing. The second needle pad is fixedly connected to the first needle pad and is located on the side of the first needle pad close to the punch. The bushing is fixedly connected to the second needle pad, is connected to the moving carriage, and is located on the side of the second needle pad close to the moving carriage.
[0010] Among them, the ejection assembly further includes a silica gel head. The silica gel head is fixedly connected to the stripping tube and is located on one side of the stripping tube.
[0011] Among them, the punch has a chute. The chute is located on the side of the punch close to the moving carriage and cooperates with the moving carriage.
[0012] Among them, the first needle pad has a first sliding needle hole, and the second needle pad has a second sliding needle hole. The first sliding needle hole is located on the side of the first needle pad close to the ejector pin and cooperates with the ejector pin. The second sliding needle hole is located on the side of the second needle pad close to the ejector pin and cooperates with the ejector pin.
[0013] For a three-needle die for ejecting the upper die of a bearing cap bolt of the present utility model, when processing a bearing cap bolt in the die, that is, a cylindrical head bolt with an internal twelve-flower head type and a relatively thin wall thickness, the punch needle may get stuck in the head of the formed internal twelve-flower type. Relying solely on the retraction of the punch needle cannot eject the part. Therefore, it is necessary to move the three ejector pins. The three ejector pins move simultaneously and push the stripping tube on the moving carriage to move, so that the stripping tube moves and abuts against the outer edge of the bearing cap bolt, and then pushes the bearing cap bolt out of the die. Description of the Drawings
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.
[0015] Figure 1 It is a schematic structural diagram of a three-needle die for ejecting the upper die of a bearing cap bolt according to the first embodiment of the present utility model.
[0016] Figure 2 It is a schematic structural diagram of the ejection assembly according to the first embodiment of the present utility model.
[0017] Figure 3 It is a schematic structural diagram of the punch according to the first embodiment of the present utility model.
[0018] In the figure: 101 - punch, 102 - punch needle, 103 - first needle pad, 104 - ejector pin, 105 - moving carriage, 106 - stripping tube, 107 - silica gel head, 108 - second needle pad, 109 - bushing, 110 - chute, 111 - first sliding needle hole, 112 - second sliding needle hole. Detailed implementation manners
[0019] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.
[0020] The first embodiment of the present application is as follows:
[0021] Please refer to Figures 1 to 3 , wherein Figure 1 is a schematic structural diagram of a three - needle die for ejecting the upper die of a bearing cap bolt in the first embodiment of the present utility model. Figure 2 is a schematic structural diagram of the ejecting assembly in the first embodiment of the present utility model. Figure 3 is a schematic structural diagram of the punch in the first embodiment of the present utility model.
[0022] The present utility model provides a three - needle die for ejecting the upper die of a bearing cap bolt, including a punch 101, a punch pin 102 and an ejecting assembly. The ejecting assembly includes a first needle pad 103, a thimble 104, a moving carriage 105, a stripper tube 106, an orienting member and a silica gel head 107. The orienting member includes a second needle pad 108 and a bushing 109. The punch 101 has a chute 110, the first needle pad 103 has a first sliding needle hole 111, and the second needle pad 108 has a second sliding needle hole 112. Through the foregoing solution, when the existing die processes a bearing cap bolt, the bearing cap bolt is usually a cylindrical head bolt with an internal twelve - petal head, and its wall thickness is relatively thin. There is a certain probability that the punch pin will get stuck in its twelve - petal head when ejecting the bearing cap bolt. Therefore, the bearing cap bolt part cannot be smoothly ejected by the punch pin alone. It can be understood that the foregoing solution can be used in the case where it is necessary to eject a bearing cap bolt with a twelve - petal head.
[0023] In this embodiment, the punch pin 102 is arranged on the punch 101. After the bolt is formed, it stays in the lower die. After the clamp clamps the bolt, the lower die punch pin 102 ejects it and transfers it to the next process.
[0024] Among them, the first needle pad 103 is slidably connected to the punch 101, connected to the punch pin 102, and located on the side of the punch 101 close to the punch pin 102. The moving carriage 105 is connected to the first needle pad 103 through the guiding member and is located on the side of the first needle pad 103 close to the punch 101. The ejector pin 104 is slidably connected to the first needle pad 103 and is located on the side of the first needle pad 103 close to the moving carriage 105. The stripping tube 106 is fixedly connected to the moving carriage 105 and is located on the side of the moving carriage 105 close to the punch pin 102. The guiding member is arranged on the first needle pad 103 and connected to the moving carriage 105. The first needle pad 103 is slidably connected within the punch 101, and the punch pin 102 is fixedly connected to the first needle pad 103. By moving the first needle pad 103, the punch pin 102 can be pushed to move, so that the punch pin 102 extends out of the punch 101, and then the bolt in the mold is ejected. There are three ejector pins 104. The three ejector pins 104 are slidably connected to the first needle pad 103. The first needle pad 103 can connect, support and directionally limit the movement of the ejector pins 104. The moving carriage 105 is connected to the first needle pad 103 through the guiding member. The moving carriage 105 has a through hole in the center, which will not affect the movement of the punch pin 102. The three ejector pins 104 can stably push the moving carriage 105 to move. The guiding member can connect, support and directionally limit the movement of the moving carriage 105 on the first needle pad 103. The stripping tube 106 is welded to the moving carriage 105. By sliding the moving carriage 105, the movement of the stripping tube 106 can be driven, so that the stripping tube 106 on the moving carriage 105 moves out of the punch 101 under the abutting and pushing of the ejector pins 104. The guiding member is arranged on the first needle pad 103 and connected to the moving carriage 105. The guiding member can connect, support and directionally limit the movement of the moving carriage 105 on the first needle pad 103. Thus, when processing the bearing cover bolt in the mold, that is, the cylindrical head bolt with an internal twelve-flower head type, its wall thickness is relatively thin, and the punch pin 102 may be stuck in the head of the formed internal twelve-flower type. It is impossible to eject the part only by retracting the punch pin 102. Therefore, it is necessary to move the three ejector pins 104. The three ejector pins 104 move simultaneously and push the stripping tube 106 on the moving carriage 105 to move, so that the stripping tube 106 moves to abut against the outer edge of the bearing cover bolt, and then pushes the bearing cover bolt out of the mold.
[0025] Secondly, the second needle pad 108 is fixedly connected to the first needle pad 103 and is located on one side of the first needle pad 103 close to the punch 101; the bushing 109 is fixedly connected to the second needle pad 108, is connected to the moving carriage 105, and is located on one side of the second needle pad 108 close to the moving carriage 105. The second needle pad 108 is fixedly connected to the first needle pad 103, and the bushing 109 is fixedly connected to the second needle pad 108. The bushing 109 has a sliding groove, and through the cooperation of the bushing 109 and the second needle pad 108, the sliding of the moving carriage 105 can be connected, supported, and directionally limited.
[0026] Meanwhile, the silica gel head 107 is fixedly connected to the stripper tube 106 and is located on one side of the stripper tube 106. The silica gel head 107 is arranged on the stripper tube 106. The silica gel head 107 is soft and heat-resistant, and can still maintain good performance in a high-temperature environment. At the same time, the flexibility of the silica gel head 107 can prevent the stripper tube 106 from wearing the outer edge of the bolt when it abuts against the push bolt.
[0027] In addition, the chute 110 is located on one side of the punch 101 close to the moving carriage 105 and cooperates with the moving carriage 105. The notch of the chute 110 faces the direction of the moving carriage 105. The moving carriage 105 can slide into the chute 110 of the punch 101, thereby driving the stripper tube 106 on the moving carriage 105 to move out of the punch 101, so as to achieve the purpose of ejecting the bolt by the action of the top end of the stripper tube 106 on the outer edge of the bolt.
[0028] Finally, the first sliding pin hole 111 is located on one side of the first needle pad 103 close to the ejector pin 104 and cooperates with the ejector pin 104; the second sliding pin hole 112 is located on one side of the second needle pad 108 close to the ejector pin 104 and cooperates with the ejector pin 104. There are three first sliding pin holes 111, and the three first sliding pin holes 111 are evenly distributed around the first needle pad 103. The three ejector pins 104 can slide directionally in the first sliding pin holes 111. There are three second sliding pin holes 112, and the three second sliding pin holes 112 are evenly distributed around the second needle pad 108. The three ejector pins 104 can slide directionally in the second sliding pin holes 112. Thus, the sliding directions of the three ejector pins 104 can be directionally limited through the first sliding pin holes 111 and the second sliding pin holes 112, and further make the movement of the ejector pins 104 more stable.
[0029] When using the three - needle mold for ejecting the upper die of the bearing cover bolt in this embodiment, when machining the bearing cover bolt in the mold, that is, the cylindrical head bolt with an inner twelve - petal head, its wall thickness is relatively thin. The ejector pin 102 may get stuck in the head of the formed inner twelve - petal shape. Relying solely on the retraction of the ejector pin 102 cannot eject the part. Therefore, it is necessary to move the three ejector pins 104. The three ejector pins 104 move simultaneously and push the stripper tube 106 on the moving carriage 105 to move, so that the stripper tube 106 moves to abut against the outer edge of the bearing cover bolt, and then pushes the bearing cover bolt out of the mold.
[0030] The above - disclosed are only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above - mentioned embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.
Claims
1. A three - needle die for ejecting the upper die of a bearing cover bolt, comprising a punch and a punch pin. The punch pin is located on one side of the punch. It is characterized in that, it further comprises an ejection assembly, the ejection assembly includes a first needle pad, a ejector pin, a moving carriage, a stripping tube and a guiding member. The first needle pad is slidably connected to the punch and connected to the punch pin, and is located on the side of the punch close to the punch pin. The moving carriage is connected to the first needle pad through the guiding member and is located on the side of the first needle pad close to the punch. The ejector pin is slidably connected to the first needle pad and is located on the side of the first needle pad close to the moving carriage. The stripping tube is fixedly connected to the moving carriage and is located on the side of the moving carriage close to the punch pin. The guiding member is arranged on the first needle pad and connected to the moving carriage.
2. The three - needle die for ejecting the upper die of a bearing cover bolt according to claim 1, characterized in that, the guiding member includes a second needle pad and a bushing. The second needle pad is fixedly connected to the first needle pad and is located on the side of the first needle pad close to the punch. The bushing is fixedly connected to the second needle pad and connected to the moving carriage, and is located on the side of the second needle pad close to the moving carriage.
3. The three - needle die for ejecting the upper die of a bearing cover bolt according to claim 1, characterized in that, the ejection assembly further includes a silica gel head. The silica gel head is fixedly connected to the stripping tube and is located on one side of the stripping tube.
4. The three - needle die for ejecting the upper die of a bearing cover bolt according to claim 1, characterized in that, the punch has a chute. The chute is located on the side of the punch close to the moving carriage and cooperates with the moving carriage.
5. The three - needle die for ejecting the upper die of a bearing cover bolt according to claim 2, characterized in that, the first needle pad has a first sliding needle hole. The second needle pad has a second sliding needle hole. The first sliding needle hole is located on the side of the first needle pad close to the ejector pin and cooperates with the ejector pin. The second sliding needle hole is located on the side of the second needle pad close to the ejector pin and cooperates with the ejector pin.