CN111692176A - Reusable positioning pin structure - Google Patents
Reusable positioning pin structure Download PDFInfo
- Publication number
- CN111692176A CN111692176A CN202010561028.8A CN202010561028A CN111692176A CN 111692176 A CN111692176 A CN 111692176A CN 202010561028 A CN202010561028 A CN 202010561028A CN 111692176 A CN111692176 A CN 111692176A
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- mounting hole
- positioning
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- expansion
- locating
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- 210000000078 claw Anatomy 0.000 claims abstract description 61
- 230000008602 contraction Effects 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
- F16B13/068—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like expanded in two or more places
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention relates to the technical field of assembly positioning, and particularly discloses a reusable positioning pin which comprises a positioning sleeve, wherein a positioning sleeve is arranged in the middle of the positioning sleeve, one side of the positioning sleeve along an axis is provided with a positioning sleeve head, the other side of the positioning sleeve is provided with an expansion claw, the positioning sleeve is provided with a mounting hole along the axis, the expansion claw has an initial contraction state and an expansion state under stress, and the positioning rod can be inserted into the mounting hole and enables the expansion claw to be in the expansion state; during installation, the expansion claw sequentially penetrates through the first through hole and the second through hole, the positioning rod is inserted into the installation hole, the expansion claw is in an expansion state, the positioning sleeve head and the expansion claw are respectively abutted to two end faces of the two workpieces, the positioning rod is pulled out of the installation hole when the first workpiece and the second workpiece are connected and detached, the positioning sleeve can be pulled out of the installation hole, the positioning sleeve can be taken out of the two through holes, and therefore the reuse positioning pin has a recycling function.
Description
Technical Field
The invention relates to the technical field of assembly positioning, in particular to a positioning pin.
Background
In the prior art, a positioning pin such as a positioning pin disclosed in earlier patent application with application number CN201910715715.8 includes a sleeve, a positioning pin and a clamping cap, the positioning pin is provided with a compression spring and a detachable clamping rod perpendicular to the positioning pin, the end of the positioning pin is hinged with a rotating handle, the bottom of the sleeve is provided with a through hole through which the positioning pin can pass, the sleeve is provided with a connection lug, the clamping cap is a hollow annular structure with two open ends and a connection thread, the connection thread of the clamping cap is matched with the sleeve, two side walls of the clamping cap are provided with side openings, the top of the side wall end of the clamping cap is provided with a clamping groove corresponding to the clamping rod, the clamping cap is connected with the sleeve, the clamping cap is located in a cavity formed by the clamping cap and the sleeve and is coaxial with the center of the clamping cap, and the clamping rod on the positioning; during the use, fix the locating hole limit at the frock through telescopic connection auricle with anticreep locating pin device, make the center and the frock locating hole of locating pin concentric, outwards pull out the locating pin through turning handle, remove the draw-in groove to the spacing of card stick, rotate the locating pin again, make the card stick be located the side open position of card cap, compression spring is with the front end pressure of locating pin in the locating hole of frock. The structure has the problems of complex structure and high processing cost. And need punch on the work piece during the use, can destroy the pleasing to the eye degree of work piece, influence the original intensity of work piece even, install moreover complicacy.
Disclosure of Invention
The invention aims to: the utility model provides a can multiplexing locating pin structure to solve the problem that the locating pin in the correlation technique exists not reusable and the structure is complicated.
The invention provides a reusable locating pin structure, which comprises:
a reusable positioning pin is used for connecting a first workpiece and a second workpiece, wherein a first through hole is arranged on the first workpiece, a second through hole is arranged on the second workpiece, the reusable positioning pin comprises a positioning sleeve, the positioning sleeve is provided with mounting holes penetrating through two ends of the positioning sleeve in the axial direction and comprises a positioning sleeve, and a positioning sleeve head and an expansion claw respectively arranged at two ends of the positioning sleeve in the axial direction, wherein the expansion claw has an initial contraction state and an expansion state under stress, when the expansion claws are in the expanded state, the outer diameters of the expansion claws are larger than the inner diameters of the first through hole and the second through hole, when the expansion claw is in the contraction state, the outer diameter of the expansion claw is smaller than the inner diameters of the first through hole and the second through hole, and the positioning sleeve can sequentially penetrate through the first through hole and the second through hole; the locating rod can be inserted into the mounting hole, and the expansion claw is in the expansion state.
As a preferred technical scheme of the reusable positioning pin, the reset spring is sleeved on the positioning rod and is positioned in the mounting hole, and two ends of the reset spring are respectively abutted against the positioning rod and the inner wall of the mounting hole.
As a preferable technical solution of the reusable positioning pin, the limiting member is in threaded connection with the positioning rod, and the return spring can drive the positioning rod to move, so that the limiting member abuts against the expansion claw.
As a preferable technical scheme of the reusable positioning pin, the mounting holes comprise a first mounting hole arranged on the positioning sleeve and the positioning sleeve head and a second mounting hole arranged on the expansion claw, the first mounting hole is communicated with the second mounting hole, and the inner diameter of the first mounting hole is larger than that of the second mounting hole; the reset spring is located the first mounting hole and with the step face butt between first mounting hole with the second mounting hole, the external diameter of locating part is greater than the internal diameter that the inflation claw is in under the inflation state.
As a preferable technical solution of the reusable positioning pin, the positioning rod includes a positioning rod main body portion and a positioning rod head portion disposed at one end of the positioning rod main body portion, an outer diameter of the positioning rod head portion is smaller than an inner diameter of the first mounting hole, the return spring abuts against the positioning rod head portion, the positioning rod main body portion can be inserted into the second mounting hole, and the expansion claw is in the expanded state.
As a preferable technical scheme of the reusable positioning pin, the outer diameter of the head of the positioning rod is larger than the inner diameter of the second mounting hole, and the outer diameter of the limiting piece is smaller than the inner diameter of the first mounting hole.
As the preferable technical proposal of the reusable positioning pin. The positioning rod main part comprises a connecting rod and a positioning column arranged at least one end of the connecting rod, the outer diameter of the positioning column is larger than that of the connecting rod, the positioning column can be inserted into the mounting hole, and the expansion claw is in the expansion state.
As the preferable technical scheme of the reusable positioning pin, one end of the positioning column, which is adjacent to the connecting rod, is provided with a chamfer.
As the optimal technical scheme of the reusable positioning pin, a groove is formed in the limiting piece and used for being matched with a wrench.
As a preferred technical scheme of the reusable positioning pin, the head part of the positioning rod is provided with two clamping surfaces which are parallel and arranged at intervals.
The invention has the beneficial effects that:
the invention provides a reusable locating pin structure, which comprises:
a reusable positioning pin is used for connecting a first workpiece and a second workpiece, the first workpiece is provided with a first through hole, the second workpiece is provided with a second through hole, the reusable positioning pin comprises a positioning sleeve, the positioning sleeve is provided with mounting holes penetrating through two ends of the positioning sleeve in the axial direction and comprises a positioning sleeve, and a positioning sleeve head and an expansion claw respectively arranged at two ends of the positioning sleeve in the axial direction, wherein the expansion claw has an initial contraction state and an expansion state under stress, when the expansion claw is in an expansion state, the outer diameter of the expansion claw is larger than the inner diameters of the first through hole and the second through hole, when the expansion claw is in a contraction state, the outer diameter of the expansion claw is smaller than the inner diameters of the first through hole and the second through hole, and when the expansion claw is in the contraction state, the positioning sleeve can sequentially pass through the first through hole and the second through hole, and the positioning rod can be inserted into the mounting hole to enable the expansion claw to be in the expansion state. The locating sleeve is in a shrinkage state in an initial state, the locating sleeve can sequentially penetrate through the first through hole and the second through hole, the locating sleeve head is abutted to the end face of the first workpiece, at the moment, the locating rod is inserted into the mounting hole, so that the expansion claw can be switched to an expansion state from the shrinkage state, the outer diameter of the expansion claw is larger than that of the second through hole, the expansion claw can be abutted to the end face of the second workpiece, and the first workpiece and the second workpiece can be connected together. When needs are dismantled, only need extract the locating lever from the mounting hole, can take out the position sleeve in proper order from second through-hole and first through-hole, realize reuse.
Drawings
FIG. 1 is a schematic view of an embodiment of a reusable alignment pin structure with an expandable jaw in a contracted state;
FIG. 2 is a schematic view of an embodiment of the invention showing an expanded pawl in a reusable alignment pin configuration;
FIG. 3 is a cross-sectional view of a reusable alignment pin structure in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram of a positioning sleeve in a reusable dowel configuration, according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a positioning rod in a reusable positioning pin structure according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram illustrating a limiting member of the reusable positioning pin structure according to an embodiment of the present disclosure;
FIG. 7 is a schematic view of another mounting method for the reusable locating pin according to the embodiment of the present invention.
In the figure:
100. the positioning pin can be reused; 200. a first workpiece; 300. a second workpiece;
11. a positioning sleeve; 12. positioning a rod; 13. a return spring; 14. a limiting member;
111. an expansion jaw; 112. a positioning sleeve; 113. positioning the sleeve head; 114. mounting holes;
1141. a first mounting hole; 1142. a second mounting hole;
121. a positioning rod head; 122. a positioning rod main body part;
1221. a connecting rod; 1222. a positioning column; 1223. chamfering;
141. a groove;
21. a first through hole; 31. a second via.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of illustrating the present invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 7, the present embodiment provides a reusable locating pin structure, the reusable locating pin 100 structure includes a first workpiece 200 and a second workpiece 300, wherein the first workpiece 200 is provided with a first through hole 21, and the second workpiece 300 is provided with a second through hole 31.
The reusable locating pin 100 structure comprises a locating sleeve 11 and a locating rod 12. The positioning sleeve 11 is provided with a mounting hole 114 penetrating through both ends of the positioning sleeve in the axial direction, the positioning sleeve 11 comprises a positioning sleeve 112, and a positioning sleeve head 113 and an expansion claw 111 respectively arranged at both ends of the positioning sleeve 112 in the axial direction, and preferably, the positioning sleeve is made of a spring steel material. The outer diameter of the positioning sleeve head 113 is larger than the inner diameter of the first through hole 21; the expansion claw 111 has an initial contraction state and an expansion state under stress, when the expansion claw 111 is in the expansion state, the outer diameter of the expansion claw 111 is larger than the inner diameters of the first through hole 21 and the second through hole 31, when the expansion claw 111 is in the contraction state, the outer diameter of the expansion claw 111 is smaller than the inner diameters of the first through hole 21 and the second through hole 31, and the positioning sleeve 11 can sequentially pass through the first through hole 21 and the second through hole 31; the positioning rod 12 can be inserted into the mounting hole 114, and the expansion claws 111 are in the expanded state.
It can be understood that, when the expansion claw is in the contracted state, the outer diameter of the positioning sleeve 112 is smaller than the inner diameters of the first through hole 21 and the second through hole 31, so that the positioning sleeve 112 can sequentially pass through the first through hole 21 and the second through hole 31; the outer diameter of the positioning rod 12 is larger than the inner diameter of the expansion claws 111 in the contracted state, so that after the positioning rod 12 is inserted into the mounting hole 114, the expansion claws 111 are given a force to expand outward so that the expansion claws 111 are switched to the expanded state. In the reusable positioning pin 100 structure provided by this embodiment, the positioning sleeve 11 is in a contracted state in an initial state, at this time, the outer diameter of the expansion claw 111 of the positioning sleeve 11 is smaller than the inner diameters of the first through hole 21 and the second through hole 31, so that the positioning sleeve 11 can sequentially pass through the first through hole 21 and the second through hole 31, and the positioning sleeve head 113 abuts against the end surface of the first workpiece 200, at this time, the positioning rod 12 is inserted into the mounting hole 114 to switch the expansion claw 111 from the contracted state to the expanded state, the outer diameter of the expansion claw 111 is larger than the outer diameter of the second through hole 31, the expansion claw 111 can abut against the end surface of the second workpiece 300, and the first workpiece 200 and the second workpiece 300 can be connected together. When the positioning rod 12 needs to be detached, the positioning sleeve 11 can be taken out from the second through hole 31 and the first through hole 21 in sequence only by pulling out the positioning rod 12 from the mounting hole 114, and therefore the repeated utilization is achieved.
Optionally, the reusable positioning pin 100 further includes a return spring 13, the return spring 13 is sleeved on the positioning rod 12 and is located in the mounting hole 114, and two ends of the return spring 13 respectively abut against inner walls of the positioning rod 12 and the mounting hole 114. In this embodiment, since both ends of the return spring 13 abut against the positioning rod 12 and the inner wall of the mounting hole 114, respectively, when the positioning rod 12 is pressed, the spring 13 is compressed and deformed, and a reaction force is given to the positioning rod 12, and after the force pressing the positioning rod 12 is removed, the positioning rod 12 is automatically returned by the elastic force of the return spring 13.
Optionally, the reusable positioning pin 100 further includes a limiting member 14, the limiting member 14 is in threaded connection with the positioning rod 12, and the return spring 13 can drive the positioning rod 12 to move, so that the limiting member 14 abuts against the expansion claw 111. In the present embodiment, since the stopper 14 is screwed with the positioning rod 12, when the positioning rod 12 moves reversely due to the elastic force, the stopper 14 is abutted against the expansion claw 111, so as to ensure the position stability of the positioning rod 12, and further, the expansion claw 111 is continuously in the expansion state, in the present embodiment, the stopper 14 is screwed, and in other embodiments, the stopper 14 may be welded, pinned, or the like.
Optionally, the mounting holes 114 include a first mounting hole 1141 disposed on the positioning sleeve 112 and the positioning sleeve head 113 and a second mounting hole 1142 disposed on the expansion claw 111, the first mounting hole 1141 is communicated with the second mounting hole 1142, and the aperture of the first mounting hole 1141 is larger than that of the second mounting hole 1142; the return spring 13 is located in the first mounting hole 1141 and abuts against a step surface between the first mounting hole 1141 and the second mounting hole 1142, and the outer diameter of the stopper 14 is larger than the inner diameter of the expansion claw 111 in the expanded state, so that the stopper 14 can abut against the expansion claw 111 under the driving of the return spring 13. The purpose of providing the first mounting hole 1141 and the second mounting hole 1142 in the mounting hole 114 in this embodiment and making the diameter of the first mounting hole 1141 larger than the diameter of the second mounting hole 1142 is to form a step surface between the first mounting hole 1141 and the second mounting hole 1142 for abutting against the return spring 13. In other embodiments, the mounting holes 114 may be configured such that the inner diameters of the first mounting hole 1141 and the second mounting hole 1142 are the same, but a snap ring or a snap is disposed between the first mounting hole 1141 and the second mounting hole 1142.
Optionally, the positioning rod 12 includes a positioning rod body portion 122 and a positioning rod head portion 121 disposed at one end of the positioning rod body portion 122, an outer diameter of the positioning rod head portion 121 is smaller than an inner diameter of the first mounting hole 1141, an outer diameter of the positioning rod body portion 122 is smaller than an inner diameter of the second mounting hole 1142, and one end of the return spring 13 abuts against the positioning rod head portion 121. The positioning rod body 122 can be inserted into the second mounting hole 1142, and the expansion pawl 111 is in an expanded state. In this embodiment, since the outer diameter of the positioning rod head portion 121 is smaller than the inner diameter of the first mounting hole 1141, and the positioning rod body portion 122 is smaller than the inner diameter of the second mounting hole 1142, the positioning rod head portion 121 can move in the first mounting hole 1141, and the positioning rod body portion 122 can move in the first mounting hole 1141 and the second mounting hole 1142, which is convenient for installation. Preferably, in the present embodiment, the positioning rod head portion 121 and the positioning rod body portion 122 are integrally provided, and in another embodiment, the positioning rod head portion 121 and the positioning rod body portion 122 may be separately provided by screwing.
Optionally, the outer diameter of the positioning rod head 121 is larger than the inner diameter of the second mounting hole 1142, and the outer diameter of the limiting member 14 is smaller than the inner diameter of the first mounting hole 1141. In this embodiment, the outer diameter of the positioning rod head 121 is greater than the inner diameter of the second mounting hole 1142, and at this time, the positioning rod head 121 cannot enter from the second mounting hole 1142; the outer diameter of the limiting member 14 is smaller than the inner diameter of the first mounting hole 1141, and at this time, the limiting member 14 can enter from the first mounting hole 1141, so that the positioning rod 12 can be reversely mounted in the positioning sleeve 11. Specifically, referring to fig. 5, rod body 122 is inserted through second mounting hole 1142 and first mounting hole 1141, and rod head 121 abuts expansion claw 111; then, the return spring 13 is fitted around the positioning rod main body portion 122 and positioned in the first mounting hole 1141, and then the stopper 14 is screwed to the positioning rod main body portion 122, and at this time, both ends of the return spring 13 abut against the stopper 14 and a step surface between the first mounting hole 1141 and the second mounting hole 1142, respectively.
Optionally, the positioning rod main body portion 122 includes a connecting rod 1221 and a positioning column 1222 disposed at least one end of the connecting rod 1221, an outer diameter of the positioning column 1222 is larger than an outer diameter of the connecting rod 1221, and the positioning column 1222 can be inserted into the mounting hole 114, and the expansion claw 111 is in an expanded state. In this embodiment, the positioning rod 12 may have three structures. When the positioning rod 12 is positively installed in the positioning sleeve 11, one end of the connecting rod 1221 is provided with the positioning rod head 121, and the other end is provided with the positioning column 1222; when the positioning rod 12 is reversely installed in the positioning sleeve 11, one end of the positioning rod 1222 is provided with a positioning rod head 121, and the other end is provided with a connecting rod 1221; when the installation is not distinguished, two ends of the connecting rod 1221 are respectively provided with a positioning column 1222. With the expansion pawl 111 in an expanded state by the positioning post 1222 located in the second mounting hole 1142.
Optionally, one end of the positioning post 1222 adjacent to the connecting rod 1221 is provided with a chamfer 1223. The chamfer 1223 in this embodiment functions to prevent the expansion pawl 111 from being caught by the positioning post 1222 at the position of the connecting rod 1221 when the expansion pawl 111 changes from the contracted state to the expanded state. In other embodiments, the chamfer 1223 may instead be a fillet.
Optionally, the end surface of the limiting member 14 is provided with a groove 141, and the groove 141 is used for matching with a torque wrench. In this embodiment, the limiting member 14 is screwed with the positioning rod 12, and the groove 141 is provided to facilitate the installation and removal of the positioning rod 12 and the limiting member 14 by cooperating with a wrench. Preferably, the groove 141 may have an unusual shape such as a triangle, a pentagon, etc., which prevents the accidental detachment.
Optionally, the positioning rod head 121 is provided with two clamping surfaces, and the two clamping surfaces are parallel and spaced. In this embodiment, the head 121 of the positioning rod is provided with two parallel clamping surfaces at an interval in parallel, so as to facilitate clamping of the open-end wrench when the positioning rod 12 and the limiting member 14 are assembled and disassembled.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A reusable positioning pin is used for connecting a first workpiece (200) and a second workpiece (300), a first through hole (21) is formed in the first workpiece (200), a second through hole (31) is formed in the second workpiece (300), and the reusable positioning pin is characterized by comprising a positioning sleeve (11) and a positioning rod (12), a mounting hole (114) penetrating through two ends of the positioning sleeve (11) in the axial direction is formed in the positioning sleeve (11), the positioning sleeve (11) comprises a positioning sleeve (112), a positioning sleeve head (113) and an expansion claw (111) are respectively arranged at two ends of the positioning sleeve (112) in the axial direction, and the outer diameter of the positioning sleeve head (113) is larger than the inner diameter of the first through hole (21);
the expansion claw (111) has an initial contraction state and an expansion state under stress, when the expansion claw (111) is in the expansion state, the outer diameter of the expansion claw (111) is larger than the inner diameters of the first through hole (21) and the second through hole (31), when the expansion claw (111) is in the contraction state, the outer diameter of the expansion claw (111) is smaller than the inner diameters of the first through hole (21) and the second through hole (31), and the positioning sleeve (11) can sequentially pass through the first through hole (21) and the second through hole (31); the positioning rod (12) can be inserted into the mounting hole (114) and enables the expansion claw (111) to be in the expansion state.
2. The reusable locating pin according to claim 1, further comprising a return spring (13), wherein the return spring (13) is sleeved on the locating rod (12) and located in the mounting hole (114), and two ends of the return spring (13) respectively abut against the locating rod (12) and an inner wall of the mounting hole (114).
3. Reusable locating pin according to claim 2, characterized in that it further comprises a stop (14), the stop (14) being in threaded connection with the locating rod (12), the return spring (13) being able to drive the locating rod (12) in movement so that the stop (14) abuts against the expansion pawl (111).
4. The reusable locating pin according to claim 3, characterized in that the mounting holes (114) comprise a first mounting hole (1141) provided to the locating sleeve (112) and the locating sleeve head (113) and a second mounting hole (1142) provided to the expansion pawl (111), the first mounting hole (1141) and the second mounting hole (1142) are communicated, and the inner diameter of the first mounting hole (1141) is larger than that of the second mounting hole (1142); the return spring (13) is located in the first mounting hole (1141) and is abutted against a step surface between the first mounting hole (1141) and the second mounting hole (1142), and the outer diameter of the limiting piece (14) is larger than the inner diameter of the expansion claw (111) in the expansion state.
5. The reusable locating pin according to claim 4, characterized in that the locating rod (12) comprises a locating rod main body part (122) and a locating rod head part (121) arranged at one end of the locating rod main body part (122), the outer diameter of the locating rod head part (121) is smaller than the inner diameter of the first mounting hole (1141), the return spring (13) abuts against the locating rod head part (121), the locating rod main body part (122) can be inserted into the second mounting hole (1142), and the expansion claw (111) is in the expansion state.
6. A reusable locating pin according to claim 5, characterised in that the outer diameter of the locating rod head (121) is larger than the inner diameter of the second mounting hole (1142) and the outer diameter of the stop (14) is smaller than the inner diameter of the first mounting hole (1141).
7. The repositionable pin of claim 5, wherein the detent lever body portion (122) comprises a connecting rod (1221) and a detent post (1222) disposed on at least one end of the connecting rod (1221), the detent post (1222) having an outer diameter greater than an outer diameter of the connecting rod (1221), the detent post (1222) being insertable into the mounting hole (114) and placing the expansion pawl (111) in the expanded state.
8. Reusable locating pin according to claim 7, characterized in that the end of the locating post (1222) adjacent to the connecting rod (1221) is provided with a chamfer (1223).
9. A reusable locating pin according to any of claims 3-7, characterized in that the retaining member (14) is provided with a recess (141), the recess (141) being adapted to cooperate with a wrench.
10. Reusable locating pin according to claim 5, characterized in that the locating rod head (121) is provided with two clamping faces, which are arranged parallel and spaced apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561028.8A CN111692176A (en) | 2020-06-18 | 2020-06-18 | Reusable positioning pin structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010561028.8A CN111692176A (en) | 2020-06-18 | 2020-06-18 | Reusable positioning pin structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111692176A true CN111692176A (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010561028.8A Pending CN111692176A (en) | 2020-06-18 | 2020-06-18 | Reusable positioning pin structure |
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| CN (1) | CN111692176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112657751A (en) * | 2020-12-29 | 2021-04-16 | 黑旋风锯业股份有限公司 | Be used for saw bit base member amortization seam rubber coating device |
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| CN212643267U (en) * | 2020-06-18 | 2021-03-02 | 法兰泰克重工股份有限公司 | Reusable positioning pin structure |
| CN212657103U (en) * | 2020-06-16 | 2021-03-05 | 法兰泰克重工股份有限公司 | Quick-release positioning pin |
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| CN209025967U (en) * | 2018-09-06 | 2019-06-25 | 浙江科泰汽车部件有限公司 | A kind of impulse- free robustness pin shaft |
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