CN214349056U - Closing-in die - Google Patents
Closing-in die Download PDFInfo
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- CN214349056U CN214349056U CN202022820573.2U CN202022820573U CN214349056U CN 214349056 U CN214349056 U CN 214349056U CN 202022820573 U CN202022820573 U CN 202022820573U CN 214349056 U CN214349056 U CN 214349056U
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- closing
- module
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- central hole
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Abstract
The utility model relates to a closing-in die, which comprises an upper die and a lower die, wherein the lower die comprises a base provided with a central hole, at least two guide holes are arranged on the base at intervals along the circumferential direction of the central hole, and the guide holes are arranged along the radial extension of the central hole; the lower die also comprises a closing-in positioning piece, and the closing-in positioning piece is provided with avoidance grooves corresponding to the guide holes; the lower die also comprises a closing-in module which is movably assembled in the guide hole in a guiding way, the closing-in module is provided with a stamping inner end used for stamping the part and a bearing outer end, and the bearing outer end is used for being pressed by a pressing block of the upper die to move towards the direction of the part; the lower die also comprises a return spring which is used for applying pressure to the closing-in module and keeping away from the elastic force of the part; the lower die further comprises a limiting stop ring, the limiting stop ring is arranged outside the base in an enclosing mode and provided with a limiting stop surface, and the limiting stop surface is used for being in stop fit with the outer bearing end of the closing-in module so as to prevent the closing-in module from being separated from the guide hole.
Description
Technical Field
The utility model relates to a binding off mould.
Background
The fastener is a mechanical part for fastening connection, is widely applied to various industries, and is a mechanical basic part which is most widely applied. Bolt and nut are the most common and most widely used ones of the fasteners. However, in the long-term use process, especially for the bolt and nut applied to some mobile devices, the bolt and nut can vibrate during the movement, and the bolt and nut can be loosened and even fall off after being vibrated for a long time, which causes adverse effects.
In order to solve the problem of looseness in the prior art, a common mode is a point-punching anti-loosening mode, namely, a nut is punched at multiple points along the radial direction to close up. In order to match the process, the Chinese utility model patent with the publication number of CN209021111U discloses a self-locking nut multipoint closing device, which comprises an upper die and a lower die, wherein the upper die comprises a pressing block; the lower die comprises a base, wherein the base is provided with a central hole extending up and down, at least two guide holes are formed in the base along the circumferential direction of the central hole, the guide holes are arranged along the radial extension of the central hole and communicated with the central hole, a closing-up module (namely a sliding block in the patent) is slidably mounted in the guide holes, and one end of the closing-up module is provided with an inner punching end. Still fixed mounting has the binding off setting element (promptly the positioning mechanism in this patent) on the base, has on the binding off setting element to dodge the groove, dodges the groove and corresponds with punching press inner, has reset spring between binding off setting element and binding off module. Wherein, the pressing block and the closing-in module are both provided with inclined planes. When the part closing device is used, a part to be processed is sleeved outside the closing-up positioning piece, the upper die moves downwards, the pressing block presses the closing-up module and enables the closing-up module to move radially inwards, and concave points are punched at the inner end of the pressing block on the part.
The self-locking nut multipoint closing-in device in the prior art has the following defects: when going upward to reset on the mould, the binding off module radially moves outward under reset spring's effect and resets, but owing to lack the removal restraint to the binding off module, when reset spring effort is great, the binding off module is easily deviate from by the guiding hole, still needs the manual work to install once more, can't realize continuous production processing, has reduced machining efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a binding off mould to solve among the prior art binding off module and easily deviate from and lead to the lower technical problem of machining efficiency by in the guiding hole.
In order to achieve the above object, the utility model provides a close up mould's technical scheme is: a necking die, comprising:
an upper die comprising a pressing block;
a lower die comprising:
the base is provided with a central hole extending up and down, at least two guide holes are arranged on the base at intervals along the circumferential direction of the central hole, and the guide holes extend along the radial direction of the central hole;
the closing-in positioning piece is fixedly arranged at the central hole of the base and extends up and down, the parts are sleeved with the closing-in positioning piece in a matching mode, and the closing-in positioning piece is provided with avoidance grooves corresponding to the guide holes;
the closing-in module is guided to move and assembled in the guide hole, the closing-in module is provided with a stamping inner end for stamping parts and a bearing outer end, at least one of the bearing outer end and the pressing block is provided with a redirection slope, and the bearing outer end is used for being pressed by the pressing block of the upper die to move towards the direction of the parts;
the reset spring is used for applying pressure to the closing-in module and keeping away from the elastic force of the part;
the lower die further comprises a limiting stop ring, the limiting stop ring is arranged outside the base in an enclosing mode and provided with a limiting stop surface, and the limiting stop surface is used for being in stop fit with the outer bearing end of the closing-in module so as to prevent the closing-in module from being separated from the guide hole.
The beneficial effects are that: the limiting stop ring is arranged outside the base in a surrounding mode, the limiting stop face of the limiting stop ring can be in stop fit with the closing-up module, the moving limit of the closing-up module, which is far away from the central hole, is limited, the closing-up module is prevented from being separated from the guide hole, continuous processing is facilitated, and processing efficiency is improved.
As a further optimized scheme, the limiting stop ring is sleeved outside the base;
the top surface of the limit stop ring is positioned below the top surface of the force-bearing outer end of the closing-up module, a set distance is reserved between the top surface of the limit stop ring and the top surface of the force-bearing outer end of the closing-up module, and the set distance is used for ensuring that the pressing block and the limit stop ring are arranged at intervals up and down when the pressing block of the upper die pushes the closing-up module to be punched in place.
The beneficial effects are that: the limiting stop ring is sleeved outside the base, and the mounting mode of the limiting stop ring is simpler.
As a further optimized solution, the base comprises:
the lower disc is provided with the central hole;
the guide block is provided with the guide hole and is fixedly arranged on the lower disc or integrally formed on the lower disc.
As a further optimized scheme, the closing-in module comprises a guide section and a bending section, the bending section bends and extends downwards from the outer end of the guide section, and the section of the guide section is rectangular;
the intersection of the top surface and the peripheral surface of the lower disc is provided with a groove extending along the radial direction of the central hole, and the groove penetrates through the lower disc in the up-down direction;
the reset spring is elastically pressed between the bending section and the bottom of the groove.
As a further optimized scheme, the guide holes are uniformly distributed along the circumferential direction of the central hole.
As a further optimized scheme, the upper die comprises a mounting ring, and the pressing block is in interference fit with the mounting ring.
The beneficial effects are that: the pressing block is fixed on the mounting ring in an interference assembly mode, and therefore installation and subsequent replacement are convenient.
Drawings
Fig. 1 is a schematic view of an embodiment 1 of a necking die of the present invention;
FIG. 2 is a schematic view of the upper mold frame in the upper mold of FIG. 1;
FIG. 3 is a schematic view of the fit of the mounting ring and the press block in the upper die of FIG. 1;
FIG. 4 is a schematic view of the lower die of FIG. 1;
FIG. 5 is a schematic view of section A-A of FIG. 4;
FIG. 6 is a schematic view of the base of FIG. 4;
figure 7 is a front view of the necking module of figure 4;
figure 8 is a top view of the necking module of figure 4;
FIG. 9 is a schematic view of the closing-up positioning member shown in FIG. 4;
description of reference numerals:
100. an upper die; 101. briquetting; 102. feeding a mold frame; 103. a mounting ring; 200. a lower die; 201. a lower die frame; 202. a closing-in module; 2021. stamping the inner end; 2022. a guide section; 2023. bending the section; 203. closing-in positioning pieces; 2031. a positioning key; 2032. an avoidance groove; 204. a base; 2041. a central bore; 2042. a guide block; 2043. a groove; 2044. a bottom wall; 205. a limit stop ring; 206. a return spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
The utility model provides a concrete embodiment 1 of binding off mould:
as shown in fig. 1 to 9, the necking die includes an upper die 100 and a lower die 200, and the upper die 100 and the lower die 200 cooperate to perform punching necking on the outer periphery of the component.
The structure of the upper die 100 is as shown in fig. 2 and fig. 3, the upper die 100 includes an upper die frame 102 and a mounting ring 103, the mounting ring 103 is fixedly mounted on the upper die frame 102 through screws, three press blocks 101 are fixedly mounted on the inner side of the mounting ring 103, specifically, the press blocks 101 are fixed on the mounting ring 103 in an interference fit manner, and the three press blocks 101 are uniformly distributed along the circumferential direction of the mounting ring 103. As shown in fig. 1 and 3, the pressing block 101 has a lower end with a slope, where the slope is pressed against the necking module 202 in use.
The structure of the lower mold 200 is as shown in fig. 4 to 9, the lower mold 200 includes a lower mold frame 201, a base 204 is fixedly mounted on the lower mold frame 201 through screws, the base 204 includes a circular lower plate 2044, and further includes a guide block 2042 integrally formed on the lower plate 2044, and the guide block 2042 is located at the top of the lower plate 2044. The number of the guide blocks 2042 is three, and the three guide blocks 2042 are uniformly distributed on the lower plate 2044 along the circumferential direction of the lower plate 2044. The guide block 2042 is provided with a guide hole (not shown), which penetrates the guide block 2042 along the radial direction of the lower plate 2044.
A central hole 2041 extending vertically and penetrating is formed in the center of the lower plate 2044, wherein a positioning key groove (not shown) is formed in a side wall of the central hole 2041, and the positioning key groove is used for the positioning key 2031 of the closing-in positioning member 203 to be fitted and placed so as to perform circumferential positioning. Grooves 2043 are formed at the intersection of the top surface and the outer peripheral surface of the lower plate 2044, wherein the number and the circumferential position of the grooves 2043 are the same as those of the guide blocks 2042, and the grooves 2043 extend into the guide blocks 2042, that is, the bottoms of the guide blocks 2042 are also grooved. However, in the present exemplary embodiment, the groove 2043 does not extend radially through the lower disk 2044, i.e., the groove base of the groove 2043 is spaced apart from the central opening 2041.
The closing-in module 202 is guided and mounted on the base 204, and the closing-in module 202 has a structure as shown in fig. 7 and 8, the closing-in module 202 includes a horizontally extending guide section 2022, and further includes a bending section 2023 located at the right end of the guide section 2022, and the bending section 2023 bends and extends outward. The left end of the closing-in module 202 is a tip, which is used for punching and closing in the component, and the end is a punching inner end 2021. The right end of the closing-up module 202 bears the top pressure in the vertical direction of the pressing block 101 when in use, and the end is the outer bearing end, so that the closing-up module 202 can move horizontally after being subjected to the top pressure in the vertical direction, in this embodiment, an inclined surface is arranged on the outer bearing end and is in top pressure fit with the inclined surface at the lower end of the pressing block 101.
As shown in fig. 7 and 8, the guide section 2022 has a rectangular cross section, and correspondingly, the guide hole in the guide block 2042 has a rectangular cross section and is adapted to have a size, so that after the guide section 2022 penetrates the guide block 2042, the guide block 2042 can guide the movement of the guide section 2022.
As shown in fig. 5, a return spring 206 is press-fitted between the bending section 2023 and the bottom of the groove 2043, where the return spring 206 is a compression spring, and the return spring 206 applies an elastic force to the bending section 2023 to move away from the central hole 2041. In order to prevent the closing-in module 202 from being separated from the guide block 2042 due to the excessive elastic force exerted by the return spring 206, in this embodiment, a limit stop ring 205 is sleeved outside the lower plate 2044, and the limit stop ring 205 is engaged with the lower plate 2044 at a spacing. As shown in fig. 5, the top surface of the limit stop ring 205 is located below the closing-in module 202, and by controlling the distance between the two, the limit stop ring 205 can both play a role of limiting and stopping the closing-in module 202 and cannot interfere with the downward movement of the pressing block 101.
The lower mold 200 further includes a closing-in positioning element 203, the closing-in positioning element 203 is structured as shown in fig. 9, the closing-in positioning element 203 is a cylinder extending up and down as a whole, the closing-in positioning element 203 includes a positioning key 2031 located at the bottom, and the positioning key 2031 is used for being matched with a positioning key slot on the hole wall of the central hole 2041 to realize circumferential positioning. The upper end of the closing-up positioning member 203 is provided with three avoiding grooves 2032, wherein the avoiding grooves 2032 correspond to the three closing-up modules 202 one by one. The closing-in retainer 203 is interference-mounted in the central hole 2041 in the mounting chamber.
When the closing-in device is used, a part to be processed is placed on the closing-in positioning piece 203, the upper die 100 moves downwards, the pressing block 101 presses the closing-in module 202, the pressing block 101 moves upwards and downwards under the action of the inclined plane to be converted into horizontal movement of the closing-in module 202, the closing-in module 202 compresses the return spring 206 and punches the part, after punching is completed, the upper die 100 moves upwards, the closing-in module 202 moves outwards under the action force of the return spring 206, and the closing-in module 202 is prevented from being separated through the limiting stop ring 205.
The inner peripheral surface of the limit stop ring 205 can cooperate with the necking-in module 202 to stop, so as to form a limit stop surface.
Wherein, the inclined planes on the pressing block 101 and the closing-in module 202 are both direction-changing inclined planes. When in actual use, the direction-changing slope surface can be an arc surface.
The utility model discloses closing up mould's embodiment 2:
in the embodiment 1, three pressing blocks are provided, and each pressing block is fixed on the mounting ring in an interference fit mode. In this embodiment, the number of the pressing blocks is changed according to the number of the necking modules, and the pressing blocks can be fixed on the mounting ring by welding or screw connection.
In addition, in other embodiments, the pressing block may be an annular pressing block, and the closing modules are simultaneously pressed by one annular pressing block.
The utility model discloses closing up mould embodiment 3:
in embodiment 1, the guide holes are uniformly distributed along the circumferential direction of the center hole. In this embodiment, the number and arrangement of the guide holes may be changed, for example, they are not circumferentially distributed.
The utility model discloses closing up mould embodiment 4:
in embodiment 1, a return spring is pressed between the bending section in the closing-in module and the bottom of the groove. In this embodiment, the return spring may be press-fitted between the bending section and the guide block. Or the groove can be extended to the central hole, and the reset spring is pressed between the bending section and the closing-in positioning piece. Alternatively, the structure of the guiding hole and the closing-in module in the base can be the same as the prior art in the background art.
The utility model discloses closing up mould embodiment 5:
in embodiment 1, the guide block is integrally formed on the lower plate. In this embodiment, the guide block may be fixed by a split process and then assembled, and may specifically be welded or screwed.
The utility model discloses closing up mould's embodiment 6:
in embodiment 1, the limit stop ring is fixed to the base. In this embodiment, the limit stop ring can be fixed on the lower mold frame. When the limit stop ring is fixed on the lower die frame, a certain distance can be reserved between the limit stop ring and the base, the pressing block can stretch into the distance, and meanwhile, the distance meets the limit stop of the closing-in module. At this time, the reset spring can be pressed between the force bearing outer end of the closing-in module and the limit stop ring, and the cross section of the closing-in module at this time can be circular.
The utility model discloses closing up mould's embodiment 7:
in embodiment 1, the press block and the closing-in module have direction-changing slopes on the force-bearing outer ends. In this embodiment, only one of the pressing block and the necking module may be provided with a redirection slope.
Finally, it should be noted that the above mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention, and although the present invention 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 without inventive effort to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A necking die, comprising:
an upper die (100) including a pressing block (101);
a lower die (200) comprising:
the base (204) is provided with a central hole (2041) extending up and down, at least two guide holes are arranged on the base (204) at intervals along the circumferential direction of the central hole (2041), and the guide holes extend along the radial direction of the central hole (2041);
the closing-in positioning piece (203) is fixedly arranged at the central hole (2041) of the base (204) and extends up and down, the closing-in positioning piece (203) is used for parts to be matched and sleeved, and the closing-in positioning piece (203) is provided with avoidance grooves (2032) corresponding to the guide holes;
the closing-in module (202) is movably assembled in the guide hole in a guiding mode, the closing-in module (202) is provided with a stamping inner end (2021) used for stamping parts and a bearing outer end, at least one of the bearing outer end and the pressing block (101) is provided with a redirection slope, and the bearing outer end is used for being pressed by the pressing block (101) of the upper die (100) to move towards the direction of the parts;
the return spring (206) is used for pressing the closing-in module (202) to be away from the elastic force of the part;
the method is characterized in that: the lower die (200) further comprises a limiting stop ring (205), the limiting stop ring (205) is arranged outside the base (204) in a surrounding mode, the limiting stop ring (205) is provided with a limiting stop surface, and the limiting stop surface is used for being matched with the force-bearing outer end in the closing-in module (202) in a stopping mode so as to prevent the closing-in module (202) from being pulled out of the guide hole.
2. A necking die according to claim 1, wherein: the limiting stop ring (205) is sleeved outside the base (204);
the top surface of the limit stop ring (205) is positioned below the top surface of the force-bearing outer end of the closing-in module (202), and a set distance is reserved between the top surface of the limit stop ring and the top surface of the force-bearing outer end of the closing-in module (202), and the set distance is used for ensuring that when a pressing block (101) of an upper die (100) pushes the closing-in module (202) to be punched in place, the pressing block (101) and the limit stop ring (205) are arranged at intervals up and down.
3. A necking die according to claim 1 or 2, wherein: the base (204) comprises:
a lower disc (2044) provided with said central hole (2041);
the guide block (2042) is provided with the guide hole, and the guide block (2042) is fixedly arranged on or integrally formed on the lower disc (2044).
4. A necking die according to claim 3, wherein: the closing-in module (202) comprises a guide section (2022) and a bending section (2023), the bending section (2023) bends and extends downwards from the outer end of the guide section (2022), and the section of the guide section (2022) is rectangular;
a groove (2043) extending along the radial direction of the central hole (2041) is formed at the intersection of the top surface and the outer peripheral surface of the lower disc (2044), and the groove (2043) penetrates through the lower disc (2044) in the up-down direction;
the return spring (206) is elastically pressed between the bending section (2023) and the groove bottom of the groove (2043).
5. A necking die according to claim 1 or 2, wherein: the guide holes are uniformly distributed along the circumferential direction of the central hole (2041).
6. A necking die according to claim 1 or 2, wherein: the upper die (100) comprises a mounting ring (103), and the pressing block (101) is assembled on the mounting ring (103) in an interference fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022820573.2U CN214349056U (en) | 2020-11-30 | 2020-11-30 | Closing-in die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022820573.2U CN214349056U (en) | 2020-11-30 | 2020-11-30 | Closing-in die |
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| Publication Number | Publication Date |
|---|---|
| CN214349056U true CN214349056U (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022820573.2U Active CN214349056U (en) | 2020-11-30 | 2020-11-30 | Closing-in die |
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| CN (1) | CN214349056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117655219A (en) * | 2023-12-18 | 2024-03-08 | 汇润机电有限公司 | Closing-in and tangential-point integrated tool of fuel pump |
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2020
- 2020-11-30 CN CN202022820573.2U patent/CN214349056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117655219A (en) * | 2023-12-18 | 2024-03-08 | 汇润机电有限公司 | Closing-in and tangential-point integrated tool of fuel pump |
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