CN216199643U - Self-adaptive conical positioning spring pin - Google Patents
Self-adaptive conical positioning spring pin Download PDFInfo
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- CN216199643U CN216199643U CN202122576743.1U CN202122576743U CN216199643U CN 216199643 U CN216199643 U CN 216199643U CN 202122576743 U CN202122576743 U CN 202122576743U CN 216199643 U CN216199643 U CN 216199643U
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Abstract
The utility model discloses a self-adaptive conical positioning spring pin, which relates to the technical field of mechanical positioning structures and comprises a conical pin, a spring and a positioning rod, wherein one end of the conical pin is provided with a conical pin surface matched with a workpiece pin hole, and the other end of the conical pin is provided with a positioning end matched with a connecting hole of an installation seat; the middle part of the taper pin is provided with a positioning hole which is axially arranged in a penetrating way; the spring is arranged at the positioning end so that the taper pin surface of the taper pin can be in close contact with the pin hole of the workpiece under the action of the spring; one end of the positioning rod is provided with a limiting part matched with the taper pin, the other end of the positioning rod can penetrate through the positioning hole and the spring and is fixedly connected with the bottom of the mounting seat connecting hole, and the limiting part is used for limiting the pop-up of the taper pin under the action of the spring; through implementing this technical scheme, can effectively solve current location taper pin location unstable and appear not hard up technical problem easily, positioning accuracy is high, and adopts split type structure, easily loading and unloading and change, the simple operation in the use.
Description
Technical Field
The utility model relates to the technical field of mechanical positioning structures, in particular to a self-adaptive conical positioning spring pin.
Background
In the mechanical manufacturing industry, for a workpiece with a high-precision positioning requirement, an auxiliary positioning structure is often needed to be used for positioning in the production process, and particularly when the hole relative position precision is required to be ensured, a positioning taper pin and a cylindrical pin are used as common positioning modes, and are positioned relative to the cylindrical pin, and the positioning taper pin has the advantages of small contact area with the workpiece, easiness in assembly and disassembly and the like.
The existing positioning taper pin has a plurality of common taper pins, internal thread taper pins, screw tail taper pins, cutter tail taper pins and the like, is matched with a tapered reaming hole, can be self-locked when being stressed by transverse force, and has convenient installation and high positioning precision. The positioning taper pin is used as a mechanical positioning structure and is mainly used for positioning and fixing parts or transmitting power. The positioning device is mainly used in occasions of frequent folding and assembly, and the positioning precision is higher than that of a cylindrical pin. However, due to the structural characteristics of the positioning taper pin, the positioning taper pin has at least the following defects: utilize current location taper pin location work piece in-process, it is not hard up to appear fixing a position easily, and adopt integral type structural design, do not possess easily to change and have characteristics such as adaptability is relatively poor to using location taper pin location work piece in-process, can't guarantee that the locating surface of location taper pin closely laminates with the work piece all the time, lead to the dismouting inefficiency, influence work piece processing progress.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems, the utility model aims to provide a self-adaptive conical positioning spring pin which can effectively solve the technical problem that the existing positioning conical pin is unstable in positioning and easy to loosen, is high in positioning precision, adopts a split structure, is easy to assemble, disassemble and replace in the using process and is convenient and fast to operate.
The technical scheme adopted by the utility model is as follows:
an adaptive conical positioning spring pin for connecting a workpiece and a mounting seat, comprising
One end of the conical pin is provided with a conical pin surface matched with the pin hole of the workpiece so as to extend into the pin hole of the workpiece, and the other end of the conical pin is provided with a positioning end matched with the connecting hole of the mounting seat so as to extend into the connecting hole of the mounting seat; the middle part of the taper pin is provided with a positioning hole which is axially arranged in a penetrating way;
the spring is arranged at the positioning end so that a taper pin surface of the taper pin can be in close contact with a pin hole of a workpiece under the action of the spring;
and one end of the positioning rod is provided with a limiting part matched with the taper pin, the other end of the positioning rod can penetrate through the positioning hole and the spring and is fixedly connected with the bottom of the mounting seat connecting hole, and the limiting part is used for limiting the taper pin to pop out under the action of the spring.
The self-adaptive conical positioning spring pin in the technical scheme is composed of a split type conical pin, a spring and a positioning rod, is easy to assemble, disassemble and replace in the using process and is convenient and fast to operate; in the assembling process, the spring is firstly arranged at the positioning end of the taper pin, then the spring is integrally arranged in the connecting hole of the mounting seat, and the positioning rod penetrates through the positioning hole and is fixed at the bottom of the connecting hole of the mounting seat; therefore, the taper pin surface of the taper pin can be attached to and closely contacted with the pin hole of the workpiece under the action of the spring during positioning, so that accurate positioning is realized, and the positioning workpiece is ensured not to be loosened easily; when the workpiece needs to be disassembled after positioning, the taper pin bounces under the action of the spring, the locating rod and the limiting part matched with the taper pin can limit the taper pin to be bounced under the action of the spring, so that the rebound range of the taper pin is limited, the safety of the self-adaptive taper positioning spring pin structure in use is guaranteed, and the self-adaptive taper positioning spring pin structure has the advantages of simplicity and rapidness in disassembly, high safety and the like.
Preferably, in the above technical solution, the positioning end is provided with a positioning groove for mounting the spring, the compression direction of the spring is the same as the axial direction of the taper pin, one end of the spring abuts against the inner bottom surface of the positioning groove, and the other end of the spring abuts against the bottom surface of the connecting hole; according to the technical scheme, the spring selects a proper specification according to the size of the positioning groove so as to ensure that the taper pin is stably supported by the spring, so that the taper pin surface of the taper pin is adaptive to fit a workpiece, and the positioning precision is high; and the design of constant head tank makes the spring can block in this region when using among this technical scheme, can guarantee the direction stability in the spring warp.
In the above technical solution, preferably, a limiting groove communicated with the positioning hole is provided at one end of the taper pin away from the positioning end, the size of the limiting groove is larger than that of the positioning hole, the size of the limiting portion is smaller than that of the limiting groove, and the size of the limiting portion is larger than that of the positioning hole; the spacing portion of locating lever can stretch into spacing recess when so fixing a position, and spacing portion can restrict the taper pin and remove along the resilience direction under the spring action when dismantling, and this structural design is simple, utilizes original taper pin part fluting design, need not increase and decrease extra part, and this spacing structural design is ingenious reasonable.
Preferably, in the above technical scheme, the positioning rod is a socket head cap shaft shoulder screw, and the cylindrical head of the screw forms the limiting part; the locating lever material can obtain easily among this technical scheme, need not special customization, and suitable specification only need be selected according to locating hole and spacing recess size to the socket cap head shaft shoulder screw to guarantee that the screw can restrict the taper pin resilience range.
According to the technical scheme, preferably, the length of the screw in the limiting groove is matched with the compression length of the spring, so that after a workpiece is positioned, the cylindrical head is positioned in the limiting groove, and the cylindrical head can be abutted against the bottom of the limiting groove when the workpiece is disassembled, and therefore the potential safety hazard caused by the fact that the self-adaptive conical positioning spring pin is integrally popped up after the workpiece is removed can be effectively avoided.
According to the technical scheme, the positioning end is cylindrical, the connecting hole is a round hole matched with the positioning end, so that the outer diameter of the positioning end is matched with the inner diameter of the connecting hole, the positioning end of the taper pin is guaranteed to be precisely matched with the connecting hole of the mounting seat according to the positioning precision requirement, the workpiece is tightly attached to the datum plane of the mounting seat when positioned, the workpiece cannot be loosened due to the fact that a gap exists between the positioning end of the taper pin and the connecting hole, and the positioning precision between the workpiece and the mounting seat is guaranteed.
Above-mentioned technical scheme is preferred the bottom of connecting hole be equipped with the internal thread hole of locating lever looks adaptation, combine above-mentioned locating lever to adopt hexagon socket head shaft shoulder screw structural design, set up in the bottom of connecting hole with screw matched with screw hole, be convenient for so in the installation with screw in threaded hole realize fixed connection for the locating lever has the stable and easy dismounting's of installation characteristics.
The utility model has at least the following beneficial effects:
1. the taper pin surface of the self-adaptive taper positioning spring pin is matched with the pin hole of the workpiece, the positioning end is matched with the connecting hole of the mounting seat, and the positioning end of the taper pin extending into the connecting hole of the mounting seat is provided with the spring, so that the taper pin surface of the taper pin can be in close contact with the pin hole of the workpiece under the action of the spring, the adaptability is good, the accurate positioning is realized, and the self-adaptive taper positioning spring pin has the characteristic that the positioning workpiece is not easy to loose during positioning.
2. The self-adaptive conical positioning spring pin is composed of a split type conical pin, a spring and a positioning rod, is easy to assemble, disassemble and replace in the using process, and is convenient and fast to operate; and through the ingenious cooperation of each part, when the work piece that needs to be dismantled is accomplished in the location, the taper pin bounces under the effect of spring, utilizes locating lever and the spacing portion of taper pin matched with can restrict the taper pin and pop out under the effect of spring, so restriction taper pin's resilience scope, guarantees the safety of self-adaptation circular cone location spring pin structure in use, has advantages such as dismantle simple swift and security height.
3. The self-adaptive conical positioning spring pin is simple to process, convenient to manufacture and low in cost, a workpiece is tightly attached to a reference surface of the mounting seat during positioning, a groove or hole forming structure on the conical pin is simple, an additional part is not needed to ensure the positioning stability and the use safety of the conical pin, the design of the positioning groove ensures the guiding stability in spring deformation, and the positioning rod can be conveniently obtained and can be stably fixed to the bottom of the connecting hole by adopting the inner hexagonal cylindrical head shaft shoulder screw, so that the self-adaptive conical positioning spring pin has the characteristics of being stable in installation and convenient to disassemble and assemble.
In conclusion, the self-adaptive conical positioning spring pin provided by the utility model can ensure that the conical pin surface of the conical pin is tightly attached to the pin hole of a workpiece, has high positioning precision and a simple structure, can realize split installation and disassembly, is easy to assemble, disassemble and replace in the use process, is convenient and fast to operate, can effectively ensure the safety in use when being applied to the workpiece processing process, and has good positioning effect because the workpiece is tightly attached to the datum plane of the mounting seat in the positioning process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is an exploded view of an adaptive conical positioning spring pin according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of A-A of FIG. 1 in accordance with an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a workpiece positioned using an adaptive conical locator spring pin in accordance with an embodiment of the present invention.
In the figure: 1-taper pin; 11-taper pin face; 12-a positioning end; 13-positioning grooves; 14-positioning holes; 15-limiting groove; 2-a spring; 3-positioning a rod; 31-a limiting part; 4-a workpiece; 41-pin holes; 5-mounting a base; 51-connection hole; 52-threaded hole.
Detailed Description
The utility model is further described with reference to the following figures and specific embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Referring to fig. 1 to 3, the present embodiment provides an adaptive conical positioning spring pin for connecting a workpiece 4 and a mounting base 5 to position the workpiece 4 on a datum plane of the mounting base 5; the self-adaptive conical positioning spring pin provided by the embodiment comprises a conical pin 1, a spring 2 and a positioning rod 3, wherein in the illustrated embodiment, the upper end of the conical pin 1 is provided with a conical pin surface 11 matched with a pin hole 41 of a workpiece 4 so as to extend into the pin hole 41 of the workpiece 4 to position the workpiece 4; the lower end of the taper pin 1 is provided with a positioning end 12 matched with the connecting hole 51 of the mounting seat 5, so as to extend into the connecting hole 51 of the mounting seat 5; and the middle part of the taper pin 1 is provided with a positioning hole 14 which is axially arranged in a penetrating way.
Crucially, the spring 2 provided by the embodiment is arranged at the positioning end 12, so that the taper pin surface 11 of the taper pin 1 can be in close contact with the pin hole 41 of the workpiece 4 under the action of the spring 2; the technical problem that the positioning workpiece is loosened due to the processing difference between the conical pin surface and the pin hole can be effectively solved; preferably, the positioning end 12 is provided with a positioning groove 13 for mounting the spring 2, the positioning groove 13 is a step-shaped sinking groove, the compression direction of the spring 2 is the same as the axial direction of the taper pin 1, one end of the spring 2 abuts against the inner bottom surface of the positioning groove 13, and the other end abuts against the bottom surface of the connecting hole 51; in the embodiment, the spring 2 selects a proper specification according to the size of the positioning groove 13 so as to ensure that the taper pin 1 is stably supported by the spring 2, so that the taper pin surface 11 of the taper pin 1 is adaptively attached to the workpiece 4, and the positioning accuracy is high; the design of the positioning slot 13 in this embodiment makes the spring 2 be clamped in this area when in use, and ensures the guiding stability of the spring 2 in deformation.
Further, the upper end of the positioning rod 3 provided by the embodiment has a limiting portion 31 matched with the taper pin 1, the lower end of the positioning rod 3 can penetrate through the positioning hole 14 and the spring 2 and is fixedly connected with the bottom of the connecting hole 51 of the mounting seat 5, and the limiting portion 31 is used for limiting the pop-up of the taper pin 1 under the action of the spring 2; specifically, a limiting groove 15 communicated with the positioning hole 14 is arranged at one end of the taper pin 1 far away from the positioning end 12, the limiting groove 15 is a step sinking groove, in the illustrated embodiment, the limiting groove 15 is arranged at the upper end of the taper pin 1 and is communicated with the positioning hole 14 and the positioning groove 13, the size of the limiting groove 15 is larger than that of the positioning hole 14, the size of the limiting part 31 is smaller than that of the limiting groove 15, and the size of the limiting part 31 is larger than that of the positioning hole 14; the cross sections of the limiting groove 15, the positioning hole 14 and the positioning groove 13 provided by this embodiment are preferably circular, the size of the limiting groove 15 being larger than the size of the positioning hole 14 means that the inner diameter of the limiting groove 15 is larger than the inner diameter of the positioning hole 14, the size of the limiting portion 31 being smaller than the size of the limiting groove 15 means that the length of the limiting portion 31 in the horizontal direction is smaller than the inner diameter of the limiting groove 15, and the size of the limiting portion 31 being larger than the size of the positioning hole 14 means that the horizontal length of the limiting portion 31 is larger than the inner diameter of the positioning hole 14; spacing portion 31 of locating lever 3 can stretch into spacing recess 15 when so fixing a position in, and spacing portion 31 can restrict taper pin 1 and remove along the resilience direction under the spring 2 effect when dismantling, and this structural design is simple, utilizes the design of original 1 part fluting of taper pin, need not increase and decrease extra part, and this spacing structural design is ingenious reasonable.
In some embodiments, the positioning rod 3 is a socket head cap shoulder screw, such that the head of the screw forms the stopper 31; in the embodiment, the material of the positioning rod 3 can be easily obtained, special customization is not needed, and the inner hexagonal cylinder head shaft shoulder screw only needs to select a proper specification according to the sizes of the positioning hole 14 and the limiting groove 15 so as to ensure that the screw can limit the rebound range of the taper pin 1; certainly, the positioning rod 3 is not limited to the above, and other screws with nuts or other positioning structures in the prior art can be used as well to limit the rebound range of the conical pin 1, so as to avoid potential safety hazards caused by the integral ejection of the self-adaptive conical positioning spring pin, and the utility model is within the protection scope.
In the illustrated embodiment, the length of the socket head cap screw in the limiting groove 15 is matched with the compression length of the spring 2, so that after the workpiece 4 is positioned, the socket head is positioned in the limiting groove 15, and when the workpiece 4 is disassembled, the socket head abuts against the bottom of the limiting groove 15 to limit the conical pin 1 from popping out under the action of the spring 2 in the disassembling process.
The locating end 12 of the taper pin 1 provided by the embodiment is cylindrical, correspondingly, the connecting hole 51 of the mounting seat 5 provided by the embodiment is a round hole matched with the locating end 12, so that the outer diameter of the locating end 12 is matched with the inner diameter of the connecting hole 51, and the locating end 12 of the taper pin 1 is guaranteed to be precisely matched with the connecting hole 51 of the mounting seat 5 according to the requirement of locating precision, so that the workpiece 4 is tightly attached to the datum plane of the mounting seat 5 during locating, the looseness caused by the gap between the locating end 12 of the taper pin 1 and the connecting hole 51 is avoided, and the locating precision between the workpiece 4 and the mounting seat 5 is guaranteed.
In addition, this embodiment is equipped with the internal thread hole 52 with locating lever 3 looks adaptation in the bottom of mount pad 5 connecting hole 51, combines above-mentioned locating lever 3 to adopt hexagon socket head shaft shoulder screw structural design, sets up in the bottom of connecting hole 51 with screw matched with screw hole 52, so be convenient for realize fixed connection in screw hole 52 with the screw in the installation for locating lever 3 has the stable and easy to assemble and disassemble's characteristics of installation.
In conclusion, the self-adaptive conical positioning spring pin of the embodiment is composed of the split type conical pin 1, the spring 2 and the positioning rod 3, is easy to assemble, disassemble and replace in the using process, and is convenient and fast to operate; in the assembling process, the spring 2 is firstly arranged in the positioning groove 13 of the positioning end 12 of the taper pin 1 and then integrally arranged in the connecting hole 51 of the mounting seat 5, and the shaft shoulder screw of the inner hexagonal cylinder head penetrates through the positioning hole 14 and the spring 2 and is in threaded connection with the bottom of the connecting hole 51 of the mounting seat 5; therefore, the taper pin surface 11 of the taper pin 1 can be attached to and closely contacted with the pin hole 41 of the workpiece 4 under the action of the spring 2 during positioning, so that accurate positioning is realized, and the positioning workpiece 4 is ensured not to be easily loosened; when the workpiece 4 is positioned and needs to be disassembled, the taper pin 1 bounces under the action of the spring 2, the cylindrical head at the top of the inner hexagonal cylindrical head shaft shoulder screw is used for limiting the rebound range of the taper pin 1, the safety of the self-adaptive conical positioning spring pin structure in use is guaranteed, the advantages of simplicity and rapidness in disassembly, high safety and the like are achieved, the self-adaptive conical positioning spring pin structure is suitable for the workpiece primary processing condition and is suitable for all installation of round holes with reference surfaces, the self-adaptive conical positioning spring pin structure can be integrally disassembled after being used, the self-adaptive conical positioning spring pin structure has good application prospect and popularization and application values, and the self-adaptive conical positioning spring pin structure is suitable for popularization and application.
The present specification and figures are to be regarded as illustrative rather than restrictive, and it is intended that all such alterations and modifications that fall within the true spirit and scope of the utility model, and that all such modifications and variations are included within the scope of the utility model as determined by the appended claims without the use of inventive faculty.
Claims (7)
1. An adaptive conical positioning spring pin is used for connecting a workpiece and a mounting seat and is characterized in that: comprises that
One end of the conical pin is provided with a conical pin surface matched with the pin hole of the workpiece so as to extend into the pin hole of the workpiece, and the other end of the conical pin is provided with a positioning end matched with the connecting hole of the mounting seat so as to extend into the connecting hole of the mounting seat; the middle part of the taper pin is provided with a positioning hole which is axially arranged in a penetrating way;
the spring is arranged at the positioning end so that a taper pin surface of the taper pin can be in close contact with a pin hole of a workpiece under the action of the spring;
and one end of the positioning rod is provided with a limiting part matched with the taper pin, the other end of the positioning rod can penetrate through the positioning hole and the spring and is fixedly connected with the bottom of the mounting seat connecting hole, and the limiting part is used for limiting the taper pin to pop out under the action of the spring.
2. The adaptive conical positioning spring pin of claim 1, wherein: the positioning end is provided with a positioning groove for mounting the spring, the compression direction of the spring is the same as the axial direction of the taper pin, one end of the spring is abutted against the inner bottom surface of the positioning groove, and the other end of the spring is abutted against the bottom surface of the connecting hole.
3. The adaptive conical positioning spring pin of claim 1, wherein: one end of the taper pin, which is far away from the positioning end, is provided with a limiting groove communicated with the positioning hole, the size of the limiting groove is larger than that of the positioning hole, the size of the limiting part is smaller than that of the limiting groove, and the size of the limiting part is larger than that of the positioning hole.
4. The adaptive conical positioning spring pin of claim 3, wherein: the positioning rod is a socket head cap shaft shoulder screw, and the cylindrical head of the screw forms the limiting part.
5. The adaptive conical positioning spring pin of claim 4, wherein: the length of the screw in the limiting groove is matched with the compression length of the spring, so that after a workpiece is positioned, the cylindrical head is positioned in the limiting groove, and the cylindrical head can abut against the bottom of the limiting groove when the workpiece is disassembled.
6. An adaptive cone positioning spring pin according to any one of claims 1-5, wherein: the positioning end is cylindrical, and the connecting hole is a round hole matched with the positioning end, so that the outer diameter of the positioning end is matched with the inner diameter of the connecting hole.
7. The adaptive conical positioning spring pin of claim 6, wherein: and an internal thread hole matched with the positioning rod is arranged at the bottom of the connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576743.1U CN216199643U (en) | 2021-10-26 | 2021-10-26 | Self-adaptive conical positioning spring pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122576743.1U CN216199643U (en) | 2021-10-26 | 2021-10-26 | Self-adaptive conical positioning spring pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216199643U true CN216199643U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122576743.1U Active CN216199643U (en) | 2021-10-26 | 2021-10-26 | Self-adaptive conical positioning spring pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216199643U (en) |
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2021
- 2021-10-26 CN CN202122576743.1U patent/CN216199643U/en active Active
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