CN220373163U

CN220373163U - Quick extracting tool of car mould blind hole pin

Info

Publication number: CN220373163U
Application number: CN202321517608.2U
Authority: CN
Inventors: 黄珍媛; 苏达权
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-01-23
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses a quick disassembling tool for a blind hole pin of an automobile die, which comprises a handle, an impact sleeve, a compression spring, a solid center shaft and a replaceable disassembling head, wherein the handle is connected to the impact sleeve through threads, the impact sleeve is arranged on the solid center shaft, the compression spring is arranged on the solid center shaft and is fixed by a center shaft shoulder, the lower end of the replaceable disassembling head is connected with a positioning pin through threads, the upper end of the replaceable disassembling head is connected with the solid center shaft through threads, and different types of pins can be disassembled through replacing different disassembling heads. The utility model has the advantages of simple structure, simple and convenient operation and capability of rapidly disassembling the automobile mould pin; the detachable head and the detachable handle are designed, so that the blind hole pins of the automobile dies with different types can be flexibly detached, and the universality is strong; through compression spring laborsaving device, alleviate workman's work burden, can effectively improve dismantlement efficiency to improve car mould production efficiency.

Description

Quick extracting tool of car mould blind hole pin

Technical Field

The utility model relates to the technical field of automobile die assembly and manufacture, in particular to a quick disassembling tool for blind hole pins of an automobile die.

Background

The pin is an important part for ensuring the assembly precision. In general, the pin hole is mainly designed as a through hole, so that the pin can be knocked out from the other end of the pin hole, and the disassembly is simpler; however, in the field of manufacturing precise automobile molds, blind hole pins are generally applied to automobile molds because the automobile molds are large and heavy, pin holes are not easy to process into through holes, and the overturning is troublesome. Because the interference fit is adopted between the pin and the pin hole, the disassembly resistance is high, and the pin can only be pulled out from the installed end, so that the pin can be pulled out difficultly by means of a special disassembly tool.

Aiming at the disassembling tool of the blind hole pin, the pin puller (ZL 202222667467.4) comprises a sleeve, a pin pulling rod, a pin pulling plate and a rotating rod, wherein the pin pulling plate is arranged on the sleeve, the pin pulling rod is arranged in the pin pulling plate, and the pin pulling rod is a threaded rod; the upper end of the pin pulling rod is provided with a connecting column, a concave hole is formed in the upper end of the connecting column, and the connecting column is connected by using a concave hole rotating rod. The pin is pulled out by adopting a threaded transmission mode, but the pin puller needs to be supported on the surface of the part, the pin puller cannot be applied to an automobile die with a complex molded surface, and the disassembling efficiency is low. The quick head-changing pin puller and the dismounting device thereof (ZL 202221483250.1) comprise a pin pulling rod, and are characterized in that a hammering sleeve is sleeved on the pin pulling rod in an axial sliding manner, the top end of the pin pulling rod is fixedly connected with a force bearing seat, and the hammering sleeve ascends to form impact and propping with the force bearing seat; the bottom of the pin pulling rod stretches into the assembly sleeve, a detachable component is arranged between the pin pulling rod and the assembly sleeve, the bottom of the assembly sleeve is penetrated with a pin pulling head to form clamping and positioning, and the bottom of the pin pulling head is provided with a fitting connection part. Belongs to the beating type manual pin puller, and improves the disassembly efficiency by designing a quick disassembly pin pulling head. However, due to the lack of a handle, it is difficult to apply a large force to the hammer case and thus to disassemble the large pin. The utility model provides a portable pin puller (ZL 202220595410.5), includes slide bar and counter weight slider, the fixed spacing portion that is provided with of slide bar one end, the other end sets up the connecting rod that is used for connecting the pin, the balancing weight is established on the slide bar through the through-hole cover that sets up in the middle of the block, and can follow slide bar length direction and remove, spacing portion size is greater than the through-hole size on the counter weight slider, effectively restricts counter weight slider and further moves, through counter weight slider striking spacing portion forms the pulling-up force of pin to pull up the pin. The pin is pulled out through the balancing weight impact limiting part, and meanwhile, the handle is arranged to facilitate the cooperative operation of holding and matching with the hoisting machinery, and the disassembly efficiency can be effectively improved by matching with the quick-change connecting rod; however, the grip cannot be disassembled, so that one-hand operation cannot be performed, and the flexibility is insufficient when the smaller pin is disassembled. In summary, screw drive pin extractors are not suitable for use in the field of mold manufacturing; but the impact pin puller widely applied to the field of die manufacturing still has the defects of insufficient flexibility, laborious and the like.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a quick disassembling tool for blind holes and pins of an automobile die, which can quickly disassemble the internal thread and pins under various complex conditions and has the advantages of simple structure, simplicity and convenience in operation, strong universality, labor saving and high disassembling efficiency.

The utility model is realized at least by one of the following technical schemes.

A quick dismounting tool for blind hole pins of an automobile die comprises a handle, an impact sleeve, a compression spring, a solid center shaft and a replaceable dismounting head; the handle is connected to the impact sleeve; the impact sleeve and the replaceable dismounting head are respectively arranged at two ends of the solid center shaft; the compression spring is arranged on the solid center shaft, and the lower end of the replaceable dismounting head is provided with a positioning pin.

Further, the upper end of the solid center shaft is provided with an external thread, a pin shaft hole and an upper positioning shaft shoulder.

Further, a lock nut and a gasket for upper limit are arranged at the upper end of the solid center shaft.

Further, a pin shaft for preventing the nut from loosening is arranged on the lock nut.

Further, an anti-falling cotter pin is arranged at the tail part of the pin shaft.

Further, a middle shaft shoulder for lower limit is arranged on the solid middle shaft, and the compression spring is fixed by the shaft shoulder.

Further, the lower end of the replaceable dismounting head is connected with the locating pin through threads, and the upper end of the replaceable dismounting head is connected with the solid center shaft through threads.

Further, the compression spring is located between the impact sleeve and the solid central shaft, and the impact sleeve moves up and down between the central shaft shoulder and the gasket.

Further, the upper end of the impact sleeve is provided with a positioning step surface, a thread tool withdrawal groove and an external thread, and an anti-skid reticulate pattern is processed at the middle gripping position.

Further, the impingement sleeve is dumbbell-shaped.

The utility model utilizes the inertia effect of the impact sleeve when the impact sleeve impacts the gasket upwards to drive the solid center shaft to pull out the pin from the pin hole. The compression spring compresses and stores energy when the impact sleeve moves downwards, releases energy when the impact sleeve moves upwards, increases initial acceleration when moving upwards, achieves a power-assisted effect, and reduces work load of workers.

The handle can be used for determining whether the handle is installed or not according to the size of the detached pin. When the smaller pin is dismounted, the handle can be dismounted, so that the portability is realized, and a worker lifts the impact sleeve upwards to lift the impact pad by holding the impact sleeve in the middle of the impact sleeve to pull out the pin; when the large pin is detached, the large force can be applied to the impact sleeve by installing the handle, so that a worker can conveniently and well apply the large force to ensure that the pin can be pulled out.

Compared with the prior art, the utility model provides a quick disassembling tool for blind hole pins of an automobile die, which has the following beneficial effects:

the quick dismounting tool for the blind hole pin of the automobile die has the advantages of simple structure and simplicity and convenience in operation, and can be used for quickly dismounting the pin of the automobile die; the detachable head and the detachable handle are designed, so that the blind hole pins of the automobile dies with different types can be flexibly detached, and the universality is strong; through compression spring laborsaving device, realize the gravitational potential energy when striking the sleeve down and turn into the kinetic energy when going up, increase the initial acceleration when going up, alleviate workman's work burden, can effectively improve dismantlement efficiency to improve vapour mould production efficiency.

Drawings

FIG. 1 is a schematic diagram of a quick removal tool for blind hole pins of an automobile die according to the present utility model;

FIG. 2 is a three-dimensional isometric view of a quick removal tool for blind holes and pins of an automobile die according to the utility model;

FIG. 3 is a three-dimensional view of a handle of the quick removal tool for blind hole pins of an automobile mold according to the present utility model;

FIG. 4 is a three-dimensional view of an impingement sleeve of the inventive automotive die blind hole pin quick disconnect;

FIG. 5 is a three-dimensional view of a solid center shaft of a quick disassembly tool for blind holes and pins of an automobile die according to the utility model;

FIG. 6 is a three-dimensional view of a removable head of the quick removal tool for blind holes and pins of an automobile mold according to the present utility model;

in the figure: 1-lock nut, 2-pin shaft, 3-gasket, 4-handle, 5-impact sleeve, 6-compression spring, 7-middle shaft shoulder, 8-solid middle shaft and 9-replaceable dismounting head.

Detailed Description

In order that those skilled in the art will better understand the present utility model, the following description will be given in detail with reference to the accompanying drawings and detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, the positional or positional relationship indicated by the terms such as "middle", "upper", "lower", "front", "rear", "left", "right", "both sides", "rear", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it is to be noted that, unless otherwise explicitly specified and defined, the term "processing" includes not only the mentioned processing contents but also processing contents for ensuring the safety of workers such as chamfering a sharp place.

Example 1

As shown in fig. 1, the quick disassembling tool for the blind hole pin of the automobile die comprises a handle 4, an impact sleeve 5, a compression spring 6, a solid center shaft 8 and a replaceable disassembling head 9.

The handle 4 is screwed to the striking sleeve 5.

The upper end of the solid center shaft 8 is provided with a lock nut 1 and a gasket 3 for upper limit, the lock nut 1 is provided with a pin shaft 2 for preventing the nut from loosening, and the tail part of the pin shaft is provided with an anti-falling cotter pin.

A middle shaft shoulder 7 for lower limit is processed on the solid middle shaft 8

The compression spring 6 is mounted on the solid center shaft 8 and is fixed by the center shaft shoulder 7. The impact sleeve 5 is arranged on the solid center shaft 8, and the compression spring 6 is arranged between the impact sleeve 5 and the solid center shaft 8.

The upper end of the solid center shaft 8 is provided with an external thread, a pin shaft hole and an upper positioning shaft shoulder, wherein the external thread is used for installing the lock nut 1; the pin shaft hole is used for installing the pin shaft 2; the upper positioning shaft shoulder is used for axially positioning the gasket 3.

The lower end of the replaceable disassembling head 9 is connected with the locating pin through threads, the upper end of the replaceable disassembling head is connected with the solid center shaft 8 through threads, different disassembling heads can be replaced by hands, and pins of different types can be disassembled.

The striking sleeve 5 moves up and down between the central shoulder 7 and the spacer 3.

The upper end of the impact sleeve 5 is provided with a positioning step surface, a thread tool withdrawal groove and an external thread, and the positioning step surface axially positions the handle; the thread tool retracting groove has the function of facilitating tool retracting when processing threads, is convenient to assemble and prevents interference; the external thread is used for installing the handle 4;

an internal thread is processed at the middle round hole of the handle 4 and is used for being connected with the impact sleeve 5;

the compression spring 6 compresses and stores energy when the impact sleeve 5 moves downwards, releases energy when the impact sleeve 5 moves upwards, increases initial acceleration when moving upwards, achieves a power-assisted effect, and reduces work load of workers.

The handle 4 can be used for determining whether to install according to the size of the detached pin. When the smaller pin is dismounted, the handle 4 can be dismounted, the portability is realized, and a worker pulls out the pin by holding the middle of the impact sleeve 5 and lifting the impact pad 3 upwards; when the large pin is detached, the handle 4 can be installed, so that a worker can apply a large force to the impact sleeve 5 better, and the pin can be pulled out.

The working principle of the utility model is that the solid center shaft 8 is driven to pull out the pin from the pin hole by utilizing the inertia effect when the impact sleeve 5 impacts the gasket 3 upwards.

In actual production, a worker selects a proper replaceable disassembling head aiming at a pin to be disassembled, the upper end of the replaceable disassembling head is connected with a solid center shaft, the lower end of the replaceable disassembling head is connected with the pin, then the two hands grasp the handle to quickly lift the impact sleeve upwards by force, so that the impact sleeve impacts a gasket and a locking nut at the upper end of the solid center shaft to drive the solid center shaft to move upwards, and then the pin is pulled out of the pin hole.

In the actual operation process, the pin can be detached by frequently impacting for several times, the compression spring plays a role after impacting the sleeve for the first time, a certain upward force is provided for the later several times of impacting, and the initial acceleration of each time of ascending is increased, so that the work load of workers is lightened, and the aim of improving the work efficiency is fulfilled.

Further, the workflow of the present utility model is more clearly expressed by combining the illustrated forms. As shown in fig. 1 (a), (b), and (c), fig. 1 (a) is an initial state, fig. 1 (b) is an impact state, and fig. 1 (c) is a depressed state. After the replaceable disassembling head is connected with the pin, the working state of the tool converts the initial state (a) of the figure 1 into the impacting state (b) of the figure 1 by applying force to the handle by a worker, and the initial impacting state is the first impacting flow; the working state is then converted into the (c) depressed state of fig. 1 by the freefall-like movement of the striking sleeve and handle combination, the compression spring being compressed to a minimum, the impact absorbing gravitational potential energy of the striking sleeve and handle combination, the speed of which becomes 0, during which the hands of the worker are in contact with the handle but have no force against each other. Then the worker applies upward force to the handle while the striking sleeve and handle combination moves upward to the striking state of fig. 1 (b) under the action of the spring force, which is a secondary striking process; and the collision flow is consistent with the secondary collision flow after that until the pin is pulled out.

Example 2

The embodiment provides a quick dismounting tool for blind hole pins of an automobile die, which comprises a handle 4, an impact sleeve 5, a compression spring 6, a solid center shaft 8 and a replaceable dismounting head 9. The handle 4 is screwed to the striking sleeve 5. The impingement sleeve 5 is mounted on the solid central shaft 8. The upper end of the solid center shaft 8 is provided with a lock nut 1 and a gasket 3 for upper limit, the lock nut 1 is provided with a pin shaft 2 for preventing the nut from loosening, and the tail part of the pin shaft 2 is provided with an anti-falling cotter pin.

The solid center shaft 8 is provided with a center shaft shoulder 7 for lower limit, and the compression spring 6 is arranged on the solid center shaft 8 and is fixed by the center shaft shoulder 7.

The lower end of the replaceable disassembling head 9 is connected with the locating pin through threads, the upper end of the replaceable disassembling head is connected with the solid center shaft 8 through threads, the middle section of the replaceable disassembling head is regular hexagon, different disassembling heads can be replaced by hands, and pins of different types can be disassembled.

The striking sleeve 5 moves up and down between the shoulder 7 and the washer 3.

as an embodiment, the whole shape of the impact sleeve 5 is processed into a dumbbell shape, and the middle gripping part is processed with an anti-skid reticulate pattern, so that the impact sleeve is convenient for workers to grip, and meanwhile, the safety of one-hand operation is improved.

An internal thread is processed at the middle round hole of the handle 4 and is used for being connected with the impact sleeve 5; in the embodiment, the solid center shaft is driven to pull out the pin from the pin hole by utilizing the inertia effect of the impact sleeve when the impact sleeve impacts the gasket upwards. The compression spring compresses and stores energy when the impact sleeve moves downwards, releases energy when the impact sleeve moves upwards, increases initial acceleration when moving upwards, achieves a power-assisted effect, and reduces work load of workers.

Example 3

According to the embodiment, on the basis of the two embodiments, the anti-skid reticulate patterns are processed on the grips on the two sides of the handle 4, so that the contact friction force is increased, the hands of workers are prevented from accidentally falling off in operation, and the operation safety is improved.

The upper end of the impact sleeve 5 is provided with a positioning step surface, a thread tool withdrawal groove and an external thread, and the positioning step surface axially positions the handle; the thread tool retracting groove has the function of facilitating tool retracting when processing threads, is convenient to assemble and prevents interference; external threads are used to mount the handle 4.

The handle 4 can be used for determining whether to install according to the size of the detached pin. When the smaller pin is dismounted, the handle can be dismounted, so that the portability is realized, and a worker pulls out the pin by holding the middle of the impact sleeve 5 and lifting the impact pad upwards; when the large pin is detached, a worker can conveniently apply a large force to the striking sleeve 5 better by installing the handle so as to ensure that the pin can be pulled out.

The workflow of the present utility model described above is presented in terms of mounting a handle. When the smaller pin is detached, the handle can be detached for convenient operation by one hand, and workers only need to change the force application position from the handle to the narrowest position of the dumbbell-shaped impact sleeve, and other working procedures are consistent with the mode of installing the handle. The utility model has simple structure and simple and convenient operation, and can quickly detach the automobile mould pin; the detachable head and the detachable handle are designed, so that the blind hole pins of the automobile dies with different types can be flexibly detached, and the universality is strong; through compression spring laborsaving device, alleviate workman's work burden, can effectively improve dismantlement efficiency to improve car mould production efficiency.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides a swift extracting tool of car mould blind hole pin which characterized in that: comprises a handle (4), an impact sleeve (5), a compression spring (6), a solid center shaft (8) and a replaceable dismounting head (9); the handle (4) is connected to the striking sleeve (5); the impact sleeve (5) and the replaceable dismounting head (9) are respectively arranged at two ends of the solid center shaft (8); the compression spring (6) is arranged on the solid center shaft (8), and the lower end of the replaceable dismounting head (9) is provided with a positioning pin.

2. The quick disassembling tool for the blind hole pin of the automobile die according to claim 1, wherein the upper end of the solid center shaft (8) is provided with an external thread, a pin shaft hole and an upper positioning shaft shoulder.

3. The quick dismounting tool for the blind hole pin of the automobile die according to claim 1, wherein a lock nut (1) and a gasket (3) for upper limit are arranged at the upper end of the solid center shaft (8).

4. A quick removal tool for blind hole pins of automobile dies as claimed in claim 3, wherein the lock nut (1) is provided with a pin shaft (2) for preventing the nut from loosening.

5. The quick disassembling tool for the blind hole pin of the automobile die as claimed in claim 4, wherein the tail part of the pin shaft (2) is provided with an anti-falling cotter pin.

6. The quick dismounting tool for the blind hole pin of the automobile die according to claim 1, wherein a central shaft shoulder (7) for lower limit is machined on the solid central shaft (8), and the compression spring (6) is fixed by the central shaft shoulder (7).

7. The quick removal tool for blind hole pins of automobile dies according to claim 1, wherein the lower end of the replaceable removal head (9) is connected with the locating pin through threads, and the upper end of the replaceable removal head is connected with the solid center shaft (8) through threads.

8. A quick removal tool for blind holes and pins of automotive dies as claimed in claim 3, wherein said compression spring (6) is located between said impact sleeve (5) and said solid central shaft (8), said impact sleeve (5) moving up and down between said central shaft shoulder (7) and said spacer (3).

9. The quick disassembling tool for the blind hole pin of the automobile die according to claim 1, wherein a positioning step surface, a thread clearance groove and an external thread are formed at the upper end of the impact sleeve (5), and an anti-slip reticulation is formed at the middle gripping position.

10. A quick removal tool for blind holes and pins in automotive dies according to any one of claims 1 to 9, characterized in that said striking sleeve (5) is dumbbell-shaped.