CN210371529U

CN210371529U - Quick detachable locating pin

Info

Publication number: CN210371529U
Application number: CN201921166072.8U
Authority: CN
Inventors: 姚彬; 李娜; 马欢运
Original assignee: Shinlone Intellectual Manufacture Precision Applied Materials Suzhou Co ltd
Current assignee: Shinlone Intellectual Manufacture Precision Applied Materials Suzhou Co ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-21
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a quick detachable locating pin, including selling the head, sell post and round pin tail, sell the head, sell post and sell the tail and make through integrated into one piece technology, the round pin tail set up the external screw thread, sell the post and sell the interior deep groove of tail, sell and set up one on the post and run through the mouth with deep groove looks vertically, run through the mouth and be linked together with deep groove, the deep groove inner wall sets up the pull-out pin portion. The utility model discloses can realize not needing to lift the mould off at production on line, demolish entire system and just can directly change the locating pin, the rate of transferring is not wasted time and equipment, and it is short to change single locating pin time, greatly reduced manufacturing cost and cost of labor, and can not lead to the mould to damage the risk because of frequent dismantlement and improve.

Description

Quick detachable locating pin

Technical Field

The utility model discloses a quick detachable locating pin relates to mechanical frock technical field.

Background

The positioning pin is widely applied to mechanical equipment and an automatic assembly line, is various in types, comprises a fixed positioning pin, a replaceable positioning pin, a conical surface positioning pin, a chamfered edge positioning pin, a standard diamond positioning pin, a spring positioning pin and the like, and has the function of limiting the freedom degree of movement of parts and articles; users often select different positioning pins according to the actual conditions of parts, for example, positioning pins with different shapes and performances are reasonably selected according to the use occasions, requirements, performances and the like.

In a thermoforming mold, a thinner locating pin is easily broken in the forming process, so that one half of the locating pin is clamped in the mold. When changing, be fairly difficult to, must lift off the back with whole mould from the board, demolish corresponding steel billet again, can change after using discharge machining to take out the locating pin after the fracture, it needs 6~8 hours to expend time, expends manufacturing cost and cost of labor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the defect in the above-mentioned background art, provide a quick detachable locating pin, simple structure easily pulls out, reduces maintenance duration, improves the locating pin of can taking of maintenance personal's work efficiency.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a quick detachable locating pin, includes the round pin head, round pin post and round pin tail, the round pin head, round pin post and round pin tail are through integrated into one piece technology preparation, the round pin tail set up the external screw thread, the locating pin is screwed into the mould through the external screw thread of round pin tail in, with the inside threaded connection of mould, and round pin head and partly round pin post stretch out outside the mould, the locating pin from round pin tail bottom inwards deep groove to round pin top, set up one on the round pin post and run through the mouth with deep groove looks vertically, run through the mouth and be linked together with deep groove, design run through the mouth and decide the cracked position of locating pin, the deep groove inner wall sets up the pin pulling portion, takes out cracked locating pin from the mould according to the pin pulling portion shape, and the position and the recess of running through the mouth run through and be higher than the profile of mould, and the locating pin can break at the run through mouth position, and inside deep groove.

Further, pull out the round pin portion and be the internal thread, the internal thread sets up to the round pin tail from running through mouthful position down, the internal thread upwards sets up 10~20mm from running through mouthful position, the external screw thread opposite direction of internal thread and round pin tail, the length of external thread is less than the length of round pin tail, pulls out the round pin instrument through internal thread screw in, and it can be fixed to the deepest position of internal thread when pulling out the round pin instrument, continues to rotate this moment, can be through reverse external screw thread with the locating pin from the mould back-spin out.

Furthermore, the pin pulling part is a hexagonal deep groove, the cross section of the deep groove is a regular hexagon, a hexagonal wrench is stretched into the hexagonal deep groove, and the positioning pin is screwed out through the hexagonal deep groove.

Furthermore, the pin column and the pin tail are cylindrical, and the diameter of the pin tail is smaller than that of the pin column.

Furthermore, the pin head is conical, and the top end of the pin head is a spherical surface in arc transition.

Furthermore, the length of the positioning pin is more than 120mm, the length of the deep groove is 75-90 mm, and the diameter of the pin column is 10-20 mm.

The cross section of the through opening is circular or square, the size of the through opening is 5-8 mm, and the size is the side length width of the square or the diameter of the circle.

Has the advantages that: 1. the utility model discloses can realize not needing to lift the mould off at production on line, demolish entire system and just can directly change the locating pin, the rate of transferring is not wasted time and equipment, and it is short to change single locating pin time, greatly reduced manufacturing cost and cost of labor, and can not lead to the mould to damage the risk because of frequent dismantlement and improve.

2. The utility model discloses a run through mouthful on the locating pin and decide the cracked position of locating pin for the fracture face exposes the mould profile, and the deep trouth that exposes after the fracture, go deep into the deep trouth through the instrument cooperation, the locating pin screw thread that will break is unscrewed, tears open, and installs new locating pin, can accomplish the change.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 shows an embodiment of the present invention with fracture pins;

fig. 4 in the embodiment of the present invention, the fracture positioning pin is taken out.

Detailed Description

The following describes the embodiments in further detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In an embodiment as shown in fig. 1-2, an easily detachable locating pin comprises a pin head 1, a pin post 2 and a pin tail 3, wherein the pin head 1, the pin post 2 and the pin tail 3 are manufactured by an integral forming process, the pin tail 3 is provided with an external thread, the locating pin is screwed into a mold 6 through the external thread of the pin tail 3, the pin head 1 and a part of the pin post 2 extend out of the mold 6, the locating pin extends from the bottom of the pin tail 3 to the inner deep groove 5 to the top 2 of the pin post, the pin post 2 is provided with a through opening 4 perpendicular to the deep groove 5, the through opening 4 is communicated with the deep groove 5, the through opening 4 is designed to determine the fracture position of the locating pin, the inner wall of the deep groove 5 is provided with a pulling pin portion, the fractured locating pin is taken out of the mold 6 according to the pulling portion, the position of the through opening 4 and the groove are penetrated and higher than the molded surface of the mold 6, the locating pin can be fractured at the through opening 4, and the inner deep groove 5 may be exposed above the mold surface of the mold 6.

The pin pulling part is an internal thread, the internal thread is downwards arranged to the pin tail from the position of the through hole 4, the internal thread is upwards arranged by 10-20 mm from the position of the through hole 4, the direction of the internal thread is opposite to that of the external thread of the pin tail 3, the length of the external thread is smaller than that of the pin tail 3, after the locating pin is broken along the through hole 4, the locating pin is screwed in to the pin pulling tool through the internal thread, the locating pin can be fixed to the deepest position of the internal thread when the pin pulling tool is used, the locating pin continues to rotate at the moment, and the locating pin can be screwed out of the die 6 through the reverse.

The pin pulling part is a hexagonal deep groove, the cross section of the deep groove 5 is a regular hexagon, and after the locating pin is broken along the through hole 4, the hexagonal wrench 7 is deeply inserted into the deep groove, and the pin tail 3 of the locating pin can be unscrewed through rotation.

The pin column 2 and the pin tail 3 are cylindrical, and the diameter of the pin tail 3 is smaller than that of the pin column 2.

The pin head 1 is in a conical surface shape, and the top end of the pin head 1 is a spherical surface in arc transition.

The length of locating pin is more than 120mm, the length of deep groove 5 is 75~90mm, and the diameter of round pin post 2 is 10~20 mm.

The cross section of the through opening 4 is circular or square, the size of the through opening 4 is 5-8 mm, and the size is the side length width of the square or the diameter of the circle.

As shown in fig. 3-4, because the easy fracture of elongated locating pin, and the fracture position is random, it is troublesome to dismantle, weaken the certain intensity of locating pin fixed position through the through hole that sets up on the locating pin, thereby decide the cracked position of locating pin, when the locating pin fracture appears, make the fixed exposure mould profile of fracture surface, and can be complete after the fracture expose the deep trouth, the rethread instrument is gone deep into the deep trouth, the locating pin screw thread that will break is unscrewed, tear down, and install new locating pin, can accomplish the change.

The utility model discloses can realize not needing to lift the mould off at production on line, demolish entire system and just can directly change the locating pin, the rate of transferring is not wasted time and equipment, and it is short to change single locating pin time, greatly reduced manufacturing cost and cost of labor, and can not lead to the mould to damage the risk because of frequent dismantlement and improve.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a quick detachable locating pin, its characterized in that, includes round pin head, round pin post and round pin tail, round pin head, round pin post and round pin tail are through integrated into one piece technology preparation, the round pin tail set up the external screw thread, the locating pin is from round pin tail bottom inwards opening deep groove, set up one on the round pin post and run through the mouth with deep groove looks vertically, run through the mouth and be linked together with the deep groove, the deep groove inner wall sets up the pull-out pin portion.

2. The easy-to-detach positioning pin according to claim 1, wherein the pull pin portion is an internal thread, the internal thread is arranged from a through opening to a pin tail, the internal thread is arranged from the through opening to the pin tail in an upward mode by 10-20 mm, the direction of the internal thread is opposite to that of an external thread of the pin tail, and the length of the external thread is smaller than that of the pin tail.

3. The easy-to-disassemble positioning pin according to claim 1, wherein the pull pin part is a hexagonal deep groove, and the cross section of the deep groove is a regular hexagon.

4. The removable locating pin according to claim 1, wherein the pin and the pin tail are cylindrical, and the pin tail has a diameter smaller than the diameter of the pin.

5. The easy-to-detach positioning pin according to claim 1, wherein the pin head is conical, and the top end of the pin head is a spherical surface with arc transition.

6. The easy-to-detach positioning pin according to claim 1, wherein the length of the positioning pin is more than 120mm, the length of the deep groove is 75-90 mm, and the diameter of the pin column is 10-20 mm.

7. A frangible locating pin according to claim 1, wherein the cross-section of the through-penetration is circular or square.