CN212471319U

CN212471319U - Positioning pin assembling tool

Info

Publication number: CN212471319U
Application number: CN202020932566.9U
Authority: CN
Inventors: 朱洪磊; 陈华兵; 尧琼林; 黄涛; 张劲松
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-02-05
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a positioning pin assembling tool, which comprises a guide sleeve and a knocking shaft, wherein a step hole is axially arranged in the guide sleeve in a penetrating manner and comprises a first step hole and a second step hole; the first stepped hole is in clearance fit with the positioning pin, and the aperture of the first stepped hole is smaller than that of the second stepped hole; one end of the knocking shaft is a knocking part, and the other end of the knocking shaft is provided with a step shaft correspondingly matched with the step hole. The assembling quality can be guaranteed, and the assembling efficiency is improved.

Description

Positioning pin assembling tool

Technical Field

The utility model relates to a round pin body assembly, concretely relates to locating pin assembly fixture.

Background

The locating pin is often used for location, connection and the fixed between the part, possesses good anti-shear force, and its external diameter is slightly bigger than the assembly aperture a bit, therefore the locating pin is interference fit during the assembly mostly, generally adopts the hammer to squeeze into during its assembly, but often meets the work piece and is in unsettled position or the assembly space of work piece narrow and small in machining, manufacturing, smash just very inconvenient with the hammer this moment, greatly increased the work degree of difficulty.

CN206811852U discloses a cylinder cover positioning pin assembling tool, which comprises a bottom plate, a guide sleeve, a guide rod and a limiting device; the bottom plate is provided with a through hole corresponding to the cylinder body positioning hole; the guide sleeve comprises a guide pipe and an installation boss, the lower end of the guide pipe penetrates through the through hole to the installation surface of the cylinder cover positioning pin, the inner wall of the guide pipe is in sliding fit with the cylinder cover positioning pin, the installation boss is fixed on the outer wall of the guide pipe, the lower end surface of the installation boss is attached to the upper side surface of the bottom plate, a screw installation hole is formed in the installation boss, and the guide sleeve is fixed on the bottom plate through a screw through the screw installation hole; the guide rod consists of a handheld rod part and a guide rod part, the diameter of the handheld rod part is larger than that of the guide rod part, the guide rod part is in sliding fit with the inner wall of the guide pipe, and the length of the guide rod part is consistent with that of the guide pipe; and the limiting device is fixedly arranged on the bottom plate and used for limiting the bottom plate to move on the cylinder cover positioning pin installing surface. The number of parts is large, the parts are heavy, and the use is inconvenient.

CN201208736 discloses a platen locating pin assembly fixture assembly on an engine flywheel, which comprises a flywheel cushion block and a platen locating pin assembly fixture, wherein a circle of boss embedded into an annular groove at the edge of a flywheel shaft hole is arranged at the center of the flywheel cushion block, the platen locating pin assembly fixture is columnar, and a locating hole matched with a locating pin is arranged at the lower end of the platen locating pin assembly fixture. This frock does not possess the direction function, and there is the slope risk in the locating pin in the assembling process, influences assembly quality and assembly efficiency.

CN205111741U discloses an assembly fixture of oil pan hollow positioning round pin, including oil pan locating support, guide bar and the location packing ring that is "┳" shape. The tool is only suitable for specific working conditions and is difficult to use universally.

Disclosure of Invention

The utility model aims at providing a locating pin assembly fixture, it can guarantee assembly quality, improves assembly efficiency.

The positioning pin assembling tool comprises a guide sleeve and a knocking shaft, wherein a step hole is axially arranged in the guide sleeve in a penetrating manner and comprises a first step hole and a second step hole; the first stepped hole is in clearance fit with the positioning pin, and the aperture of the first stepped hole is smaller than that of the second stepped hole; one end of the knocking shaft is a knocking part, and the other end of the knocking shaft is provided with a step shaft correspondingly matched with the step hole.

Furthermore, one end of the guide sleeve is radially provided with a plurality of locking holes communicated with the first step hole, and the locking holes are used for fixing the locking assembly.

Further, the locking component is a magnet, and the magnet is in clearance fit with the locking hole.

Furthermore, the quantity of locking hole is three, along uide bushing circumference evenly distributed, the uide bushing lateral wall is equipped with the recess that is used for fixed clamping ring, the clamping ring can prevent that locking Assembly from droing in the locking hole.

Furthermore, the uide bushing radially is equipped with three via holes coaxial corresponding with the locking hole.

Furthermore, the end of the locking hole close to the inner side of the guide sleeve is provided with a limiting convex edge.

Furthermore, a counter bore is arranged at one end, close to the second step hole, of the guide sleeve, the aperture of the counter bore is larger than that of the second step hole, and an internal thread section is arranged on the inner circumferential surface of the counter bore; the step shaft comprises a first step shaft correspondingly matched with the first step hole, a second step shaft correspondingly matched with the second step hole and a third step shaft coaxially connected with the free end of the second step shaft, and the diameter of the third step shaft is smaller than that of the second step shaft; the third step shaft sleeve is provided with a connecting block, the connecting block is in threaded connection with the internal thread section of the counter bore through the external thread section, and the periphery of the connecting block is further provided with a convex edge for stopping the end face of the guide sleeve.

Further, third step axle sleeve is equipped with handle and reset spring, handle one end offsets with the connecting block, and the other end and reset spring's one end butt, the reset spring other end with be fixed in strike epaxial spring holder butt.

Further, a guard plate is arranged on the third step shaft sleeve and located between the handle and the return spring.

Furthermore, the knocking part sleeve is provided with a knocking sleeve correspondingly matched with the knocking part sleeve, and the knocking end face of the knocking sleeve is a plane.

Compared with the prior art, the utility model following beneficial effect has.

1. The utility model discloses a first step pore pair locating pin of uide bushing leads the assembly, has prevented that the locating pin from taking place to incline in assembling process, and the step axle through the striking axle corresponds the cooperation with the step pore pair of uide bushing, and the assembly depth that can accurate control locating pin has guaranteed assembly quality, has improved assembly efficiency.

2. The utility model discloses simple structure, the dependable performance, installation convenient to use, the practicality is strong.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic structural view of the knocking sleeve assembly of the present invention;

FIG. 3 is a schematic structural view of the guide sleeve of the present invention;

fig. 4 is a sectional view of the guide sleeve of the present invention;

fig. 5 is a schematic structural view of the clamp ring of the present invention;

fig. 6 is a schematic structural view of the magnet of the present invention;

fig. 7 is a schematic cross-sectional view of the guide sleeve of the present invention;

fig. 8 is a schematic structural view of the knocking shaft of the present invention;

fig. 9 is a schematic structural diagram of the connecting block of the present invention;

FIG. 10 is a schematic view of the handle of the present invention;

fig. 11 is a schematic structural diagram of the guard plate of the present invention;

FIG. 12 is a schematic structural view of the knocking sleeve of the present invention;

FIG. 13 is one of the working schematic diagrams of the present invention;

fig. 14 is a second operation diagram of the present invention.

In the figure, 1-a guide sleeve, 11-a first stepped hole, 12-a second stepped hole, 13-a counter bore, 14-a locking hole, 15-a through hole, 16-a limiting flange, 17-a groove, 18-a clamping ring, 2-a knocking shaft, 21-a first stepped shaft, 22-a second stepped shaft, 23-a third stepped shaft, 3-a locking component, 4-a connecting block, 41-an external thread section, 42-a flange, 5-a handle, 51-a first bulge, 52-a second bulge, 6-a return spring, 7-a spring seat, 8-a guard plate, 81-a mounting hole, 82-a lightening hole, 9-a knocking sleeve, 91-a blind hole and 10-a positioning pin.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 12, the positioning pin assembling tool comprises a guide sleeve 1 and a knocking shaft 2, wherein a stepped hole axially penetrates through the guide sleeve 1, and the stepped hole comprises a first stepped hole 11 and a second stepped hole 12; the first stepped hole 11 is in clearance fit with the positioning pin 10, and the aperture of the first stepped hole is smaller than that of the second stepped hole 12. One end of the knocking shaft 2 is a knocking part, and the other end of the knocking shaft is provided with a step shaft correspondingly matched with the step hole.

In order to prevent the positioning pin 10 from freely moving along the axial direction of the guide sleeve 1, three locking holes 14 communicated with the first stepped hole 11 are radially arranged at one end of the guide sleeve 1, and the locking holes 14 are used for fixing the locking assembly 3. The three locking holes 14 are uniformly distributed along the circumferential direction of the guide sleeve 1, a groove 17 for fixing a pressing ring 18 is formed in the outer side wall of the guide sleeve 1, and the pressing ring 18 can prevent the locking assembly 3 from falling off from the locking holes 14.

Referring to fig. 6, the locking assembly 3 is a cylindrical magnet, and the magnet is in clearance fit with the inner wall of the locking hole 14.

Referring to fig. 7, in order to facilitate the detachment of the locking assembly 3, three through holes 15 are radially provided on the guide sleeve 1, which correspond coaxially to the locking holes 14. When the locking assembly 3 needs to be disassembled, the rod is inserted from the through hole 15, the end part of the rod passes through the locking hole 14 and acts on one end, close to the inner part, of the locking assembly 3, force is applied to push the locking assembly 3 out of the locking hole 14, and the disassembling of the locking assembly 3 is completed.

Referring to fig. 4, in order to prevent the locking assembly 3 from directly contacting the locating pin 10 and causing abrasion to the surface of the locating pin 10, a limiting convex edge 16 is provided at one end of the locking hole 14 close to the inner side of the guide sleeve 1.

One end of the guide sleeve 1, which is close to the second step hole 12, is provided with a counter bore 13, the aperture of the counter bore 13 is larger than that of the second step hole 12, and the inner circumferential surface of the counter bore 13 is provided with an internal thread section. The step shaft at the end of the knocking shaft 3 comprises a first step shaft 21 correspondingly matched with the first step hole 11, a second step shaft 22 correspondingly matched with the second step hole 12 and a third step shaft 23 coaxially connected with the free end of the second step shaft 22, and the diameter of the third step shaft 23 is smaller than that of the second step shaft 22.

By defining the length relationship of the first step shaft 21 and the first step hole 11, different fitting states of the positioning pin 10 can be achieved. When the length of the first step shaft 21 is smaller than the length of the first step hole 11, a portion of the positioning pin 10 may leak from the surface of the workpiece after the assembly is completed, and the leaking length is the difference between the lengths of the first step shaft 21 and the first step hole 11. When the length of the first step shaft 21 is equal to the length of the first step hole 11, the positioning pin 10 is flush with the surface of the workpiece after the assembly is completed. When the length of the first step shaft 21 is greater than the length of the first step hole 11, the positioning pin 10 is partially pressed down after the assembly is completed by the difference between the lengths of the first step shaft 21 and the first step hole 11.

The third step shaft 23 is sequentially sleeved with a connecting block 4, a handle 5, a guard plate 8 and a return spring 6, referring to fig. 9, the connecting block 4 is in threaded connection with the internal thread section of the counter bore 13 through an external thread section 41, and a convex edge 42 for stopping the end face of the guide sleeve 1 is further arranged on the periphery of the connecting block 4. The middle part of the connecting block 4 is axially provided with a central through hole correspondingly matched with the third step shaft 23, and the aperture of the central through hole is smaller than the diameter of the second step shaft 22.

Referring to fig. 10, the handle 5 is axially provided with an installation through hole intermittently matched with the third step shaft 23, two ends of the installation through hole are respectively provided with a first protrusion 51 and a second protrusion 52, the first protrusion 51 abuts against an end surface of the connecting block 4, which is far away from the internal thread section 41, the second protrusion 52 abuts against one side of the guard plate 8, the other side of the guard plate 8 abuts against one end of the return spring 6, the other end of the return spring 6 abuts against the spring seat 7 fixed on the knocking shaft 2, and the spring seat 7 is a nut screwed on the third step shaft 23 in order to reduce the processing difficulty. The handle 5 is convenient for an operator to grasp, the protective plate 8 is arranged to effectively prevent the hammer from knocking the hand of the operator, and the safety of the tool in the using process is guaranteed.

Referring to fig. 11, the middle of the guard plate 8 is provided with a mounting hole 81 correspondingly matched with the third step shaft 23, and the guard plate 8 is further provided with eight lightening holes to reduce the overall weight of the tool, so that the tool is convenient for an operator to use.

Referring to fig. 12, the knocking portion is sleeved with a knocking sleeve 9 correspondingly matched with the knocking portion, a blind hole 91 correspondingly matched with the knocking portion is formed in the knocking sleeve 9, and a knocking end face of the knocking sleeve 9 is a plane.

During the specific assembly, connecting block 4, handle 5, backplate 8 and reset spring 6 cover in proper order on the third step axle 23 of knocking axle 2, and connecting block 4 keeps away from the terminal surface of handle 5 and leans on in second step axle 22 terminal surface. Then, a nut as a spring seat 7 is screwed on the third stepped shaft 3. Then, a magnet serving as the locking component 3 is placed in the locking hole 14 of the guide sleeve 1, and the locking component 3 is limited in the locking hole 14 by the pressing ring 18. And finally, the internal thread section of the counter bore 13 on the end face of the guide sleeve 1 with the locking component 3 is in threaded connection with the external thread section 42 on the connecting block 4, and the assembly of the tool is finished.

In specific operation, referring to fig. 13, the positioning pin 10 is placed in the first stepped hole 11 of the guide sleeve 1, the positioning pin 10 is attracted by the magnet, the positioning pin 10 is prevented from sliding along the guide sleeve 1, and the free end of the guide sleeve 1 abuts against the surface of the workpiece. Referring to fig. 14, the knocking sleeve 9 is knocked by a hammer, the knocking sleeve 9 drives the knocking shaft 2 to move, the positioning pin 10 is pushed out and assembled in the positioning pin hole of the workpiece, and when the shoulder of the second stepped shaft 22 is in contact with the end of the first stepped hole 11, the positioning pin 10 does not move any more, and the assembly of the positioning pin 10 is completed. After the tool is taken down, the knocking shaft 2 moves back to the initial position under the action of the return spring 6. The positioning pin 10 is simple to assemble and operate, the guide sleeve 1 is arranged, the assembling quality is guaranteed, the hammer is adopted for knocking, the assembling speed is increased, and the assembling efficiency is improved.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a locating pin assembly fixture which characterized in that: the device comprises a guide sleeve (1) and a knocking shaft (2), wherein a step hole axially penetrates through the guide sleeve (1), and comprises a first step hole (11) and a second step hole (12); the first stepped hole (11) is in clearance fit with the positioning pin (10), and the aperture of the first stepped hole is smaller than that of the second stepped hole (12); one end of the knocking shaft (2) is a knocking part, and the other end of the knocking shaft is provided with a step shaft correspondingly matched with the step hole.

2. The positioning pin assembling tool according to claim 1, characterized in that: one end of the guide sleeve (1) is radially provided with a plurality of locking holes (14) communicated with the first stepped hole (11), and the locking holes (14) are used for fixing the locking assembly (3).

3. The positioning pin assembling tool according to claim 2, characterized in that: the locking component (3) is a magnet, and the magnet is in clearance fit with the locking hole (14).

4. The positioning pin assembling tool according to claim 2, characterized in that: the quantity of locking hole (14) is three, along uide bushing (1) circumference evenly distributed, uide bushing (1) lateral wall is equipped with recess (17) that are used for fixed clamp ring (18), clamp ring (18) can prevent that locking Assembly (3) from droing from locking hole (14).

5. The positioning pin assembling tool according to claim 4, characterized in that: three through holes (15) which coaxially correspond to the locking holes (14) are radially arranged on the guide sleeve (1).

6. The positioning pin assembling tool according to claim 2, characterized in that: and one end of the locking hole (14) close to the inner side of the guide sleeve (1) is provided with a limiting convex edge (16).

7. The positioning pin assembling tool according to claim 1 or 2, characterized in that: a counter bore (13) is formed in one end, close to the second step hole (12), of the guide sleeve (1), the aperture of the counter bore (13) is larger than that of the second step hole (12), and an inner thread section is formed in the inner circumferential surface of the counter bore (13);

the step shaft comprises a first step shaft (21) correspondingly matched with the first step hole (11), a second step shaft (22) correspondingly matched with the second step hole (12), and a third step shaft (23) coaxially connected with the free end of the second step shaft (22), and the diameter of the third step shaft (23) is smaller than that of the second step shaft (22);

the third step shaft (23) is sleeved with a connecting block (4), the connecting block (4) is in threaded connection with the internal thread section of the counter bore (13) through an external thread section (41), and a convex edge (42) blocked with the end face of the guide sleeve (1) is further arranged on the periphery of the connecting block (4).

8. The positioning pin assembling tool according to claim 7, characterized in that: third step axle (23) cover is equipped with handle (5) and reset spring (6), handle (5) one end and connecting block (4) butt, the other end and the one end butt of reset spring (6), reset spring (6) other end and be fixed in spring holder (7) butt on knocking axle (2).

9. The positioning pin assembling tool according to claim 8, characterized in that: the third step shaft (23) is sleeved with a protection plate (8), and the protection plate (8) is located between the handle (5) and the return spring (6).

10. The positioning pin assembling tool according to claim 1 or 2, characterized in that: the knocking part sleeve is provided with a knocking sleeve (9) correspondingly matched with the knocking part sleeve, and the knocking end face of the knocking sleeve (9) is a plane.