CN219235197U

CN219235197U - Pin pulling device

Info

Publication number: CN219235197U
Application number: CN202223609027.XU
Authority: CN
Inventors: 谢同星; 单联波; 周士波; 王尧鹏; 刘卫华
Original assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Current assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-23
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a pin pulling device, which comprises a sliding seat, a sliding body, a vibrator, a counterweight mechanism and a lifting device, wherein the sliding seat is arranged on the sliding body; the lifting device is arranged on one side of the sliding seat and used for positioning a position of a positioning pin to be pulled out, the counterweight mechanism is arranged on the opposite side of the lifting device, the sliding seat is provided with a guide shaft, the axial direction of the guide shaft is parallel to the axial direction of the positioning pin to be pulled out, a sliding body is arranged on the guide shaft, a vibrator which slides together with the sliding body is abutted on the sliding body, the vibrator is connected with the counterweight mechanism, a mounting groove is formed in one side, close to the lifting device, of the upper end face of the sliding body, and a clamping structure is arranged in the mounting groove and used for connecting the positioning pin to be pulled out.

Description

Pin pulling device

Technical Field

The utility model belongs to the field of general tools, and particularly relates to a positioning pin pulling device.

Background

In existing devices or molds, a number of parts are positioned and secured by dowel pins, for example, a tire mold sheet mold is formed by dividing the mold into multiple pieces and using dowel pins to position and secure. In order to ensure the precision of the matching, the clearance between the locating pin and the die is small. The locating pin needs to be preferentially pulled out in the disassembly and maintenance process, the length of the locating pin is generally more than 200mm, the current pulling-out mode is manual pulling-out, and because the die can be subjected to the action of shearing force on the pin shaft in the use process, the bending states of different degrees appear, the time required for manual pulling-out is long, and the labor intensity of operators is very high.

At present, most of existing pin pulling devices are short-stroke products, when long pins are pulled out, the long pins are pulled out for multiple times, corresponding matched tools are needed, manual participation is needed in the whole process, the operation is complex, and the preparation time is long.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a pin pulling device.

In order to achieve the above object, the present utility model is realized by the following technical scheme:

a pin pulling device comprises a sliding seat, a sliding body, a vibrator, a counterweight mechanism and a lifting device; the lifting device is arranged on one side of the sliding seat and used for positioning a position of a positioning pin to be pulled out, the other side of the sliding seat opposite to the lifting device is provided with a counterweight mechanism, the sliding seat is provided with a guide shaft, the axial direction of the guide shaft is parallel to the axial direction of the positioning pin to be pulled out, a sliding body is arranged on the guide shaft, a vibrator sliding together with the sliding body is abutted to the sliding body, the vibrator is connected with the counterweight mechanism, one side, close to the lifting device, of the upper end face of the sliding body is provided with a mounting groove, and a clamping structure is arranged in the mounting groove and used for connecting the positioning pin to be pulled out.

As a further technical scheme, the lifting device comprises a bottom fixing seat and a horizontal moving plate; the horizontal moving plate is slidably mounted on the bottom fixing seat, two rotatable brackets are arranged on the horizontal moving plate, and a V-shaped structure is formed between the two brackets.

As a further technical scheme, two brackets are connected with the same screw rod, the screw thread directions at two ends of the screw rod are opposite, the screw rod is matched with one screw rod nut respectively, and the two screw rod nuts are fixed on the two brackets respectively.

As a further technical scheme, the upper end face of the bottom fixing seat and the lower end face of the horizontal moving plate use dovetail-shaped matching structures, and the dovetail direction is perpendicular to the pulling-out direction of the locating pin.

As a further technical scheme, each support comprises two vertical support rods, one ends of the two vertical support rods are respectively connected with the upper support of the horizontal moving plate through pin shafts to form rotary connection, the other ends of the two vertical support rods are connected through transverse connecting rods to form a whole, and meanwhile, the middle positions of the two vertical support rods are connected through the transverse support rods.

As a further technical scheme, the transverse connecting rod is coated with a rubber sleeve.

As a further technical scheme, the guide shafts are sleeved with the sliding connecting bodies, and the main body of the vibrator is fixedly connected with the connecting bodies, so that the bottom of the vibrator is suspended between the two guide shafts.

As a further technical scheme, the vibrator and the connecting body are arranged at the center of the sliding body and sleeved on the guide shaft together.

As a further technical scheme, a pulley is arranged on the vertical plate of the sliding seat, and the vibrator is connected with the weight through a steel wire rope and the pulley.

As a further technical scheme, a T-shaped groove is formed in the upper end face of the sliding body, a limiting plate is arranged at one end of the clamping structure and can be clamped in the T-shaped groove, and the other end of the clamping structure is connected with the positioning pin.

The beneficial effects of the embodiment of the utility model are as follows:

1. the pin pulling device provided by the utility model can be self-adaptive to the length of the positioning pin, so that the universality of the pin pulling device is improved, and the advantage is obvious especially in the pulling of a long pin;

2. the device does not need human participation in the process of pulling out the locating pin, realizes the automatic operation of the pin pulling process, greatly reduces the labor intensity of operators and improves the pulling-out efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic three-dimensional structure of the present utility model;

FIG. 2 is a schematic view of the structure with the slider removed;

fig. 3 is a schematic structural view after assembling the blocks.

Detailed Description

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular forms also are intended to include the plural forms unless the present utility model clearly dictates otherwise, and furthermore, it should be understood that when the terms "comprise" and/or "include" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "upper", "lower", "left" and "right" in the present utility model, if they mean only the directions of upper, lower, left and right in correspondence with the drawings themselves, are not limiting in structure, but merely serve to facilitate description of the present utility model and simplify description, rather than to indicate or imply that the apparatus or elements referred to 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.

As described in the background art, the utility model provides a stroke self-adaptive pin pulling device for solving the technical problems.

In an exemplary embodiment of the present utility model, as shown in fig. 1, 2 and 3, the present utility model provides a stroke adaptive pin pulling device, which includes a sliding seat 1, a sliding body 2, a vibrator 3, a weight mechanism and a lifting device; the lifting device is arranged on one side of the sliding seat and used for positioning a position of a positioning pin to be pulled out, the balance weight mechanism is arranged on the opposite side of the lifting device, the guide shaft 10 is arranged on the sliding seat 1, the axial direction of the guide shaft 10 is parallel to the axial direction of the positioning pin to be pulled out, the sliding body 2 is arranged on the guide shaft 10, the vibrator 3 sliding together with the sliding body 2 is arranged on the sliding body 2, the vibrator 3 is connected with the balance weight mechanism, the upper end face of the sliding body 2, close to one side of the lifting device, is provided with a mounting groove, a clamping structure is arranged in the mounting groove, and the clamping structure is used for connecting with the positioning pin to be pulled out.

Further, as shown in fig. 1, the lifting device in the present embodiment is disposed on the right side of the sliding seat 1, and includes a bottom fixing seat 4, a horizontal moving plate 5, a screw rod 6, and two brackets; the bottom fixing seat 4 is used as a base, the upper end face of the bottom fixing seat 4 and the lower end face of the horizontal moving plate 5 preferably use dovetail-shaped matching structures, the dovetail direction is perpendicular to the pulling-out direction of the positioning pin, and the horizontal moving plate 5 and the bottom fixing seat 4 relatively slide to adjust the relative position of the positioning pin to be pulled out and the pin pulling device in the horizontal direction;

two rotatable brackets are arranged on the horizontal moving plate 5, a V-shaped structure is formed between the two brackets, each bracket comprises two vertical supporting rods 7, one ends of the two vertical supporting rods 7 are respectively connected with an upper support of the horizontal moving plate 5 through pin shafts to form rotary connection, the other ends of the two vertical supporting rods 7 are connected through transverse connecting rods 8 to form a whole, and meanwhile, the middle positions of the two vertical supporting rods 7 are also connected through a transverse supporting rod 9; the transverse connecting rod 8 is coated with a rubber sleeve.

The two brackets are driven by the screw rod 6 to rotate simultaneously, the screw thread directions at the two ends of the screw rod 6 are opposite, the screw rod nuts are respectively matched with one screw rod nut, the screw rod nuts are preferably fixed with the transverse supporting rods 9 of the two brackets, the transverse supporting rods 9 are rotatably connected with the vertical supporting rods 7, the screw rod nuts are connected with the screw rod threads simultaneously, the screw thread directions of the left nut and the right nut are opposite, the two screw rod nuts can move in the directions close to or far away from each other, the screw rod 6 mainly drives the two brackets to rotate relatively, and then the upper height and the lower height of the pattern block 20 after being leveled are adjusted.

Further, a force application position for rotation of the screw rod 6 is arranged at the end part of the screw rod 6, the screw rod 6 can be rotated, the distance between two screw nuts can be adjusted, the included angle formed by the two supports can be further adjusted to drive the two supports to open and close, the two supports mainly serve as a pattern block 20 to be placed, the height of the positioning pin 19 to be pulled out can be adjusted, and the positioning pin 19 is coaxial with a traction mechanism on the sliding seat 1. The transverse strut 9 contacted with the pattern block 20 is rotatably connected with the vertical strut 7, and a rubber sleeve is attached on the transverse strut to avoid damaging the pattern block.

Further, four seats 17 are provided below the slide base 1 in the present embodiment for supporting the slide base 1.

Furthermore, the sliding seat 1 is of an upper opening box-type structure, two parallel guide shafts 10 are installed between the left vertical plate and the right vertical plate, the two guide shafts 10 are preferably sizing cylinder shafts, two ends of the two guide shafts 10 are fixed with the left vertical plate and the right vertical plate by adopting radial jacking screws 12, and the sliding body 2 is sleeved on the two guide shafts 10 and can do sliding motion along the guide shafts 10. The front vertical plate and the rear vertical plate enhance structural stability and avoid deformation of the left vertical plate and the right vertical plate.

Further, a slidable connector 11 is sleeved on the two guide shafts 10, and the main body of the vibrator 3 is fixedly connected with the connector 11, so that the bottom of the vibrator 3 is suspended between the two guide shafts 10.

One side (left side in fig. 1) of the sliding seat 1 far away from the lifting device is provided with a counterweight mechanism, a vertical plate of the sliding seat 1 is provided with a pulley 13, a main body of the vibrator 3 is connected with a weight 18 through a steel wire rope 16 and the pulley, and the vibrator 3 slides leftwards along the guide shaft 10 through the connecting body 11 under the action of the tensile force of the weight.

The sliding body 2 is of a box-type structure with a lower opening, one side of the upper end face, which is close to the lifting device, is provided with a T-shaped groove 2-1, one end of the clamping structure 14 is provided with a limiting plate, the limiting plate can be clamped in the T-shaped groove 2-1, the other end of the limiting plate is connected with the positioning pin 19, and the sliding body 2 is movably connected with the positioning pin through the clamping structure.

Further preferably, the vibrator 3 is provided at the center of the slider 2 together with the connector 11, and is fitted over the two guide shafts 10.

Further, the vibrator 3 in the present embodiment is an air hammer, and the air hammer air inlet 15 is located on the side close to the elevating device.

The process of drawing the positioning pin by using the device is as follows:

the vibrator 3 body receives a pulling force of the weight leftward;

the hammer head part abuts against the inner side of the sliding body 2 to push the sliding body 2 leftwards;

the right side of the sliding body 2 is connected with a positioning pin 19 of a pattern block 20 through a clamping structure, and a leftward drawing force is applied to the positioning pin 19;

the end surface of the main body of the pattern block 20 is abutted with the right vertical plate of the sliding seat 1, so that the movement of the pattern block 20 to the left is limited;

the vibrator 3 is driven by compressed air, when air flows to the vibrator 3 through a two-position three-way valve, the hammer head part of the vibrator rapidly stretches out to strike the sliding body 2, the electromagnetic valve commutates after the shock, and the hammer head is reset and retracted under the action of a spring.

The electromagnetic valve is controlled by a relay to continuously reverse to drive the hammer head to continuously earthquake and strike the sliding body 2, the positioning pin 19 is pulled out from one section, preferably, the distance between the left side of the sliding body and the left inner wall of the sliding seat 1 after the device is installed is larger than the length of the positioning pin 19 to be pulled out, and the sliding seat 1 moves towards the pulling-out direction of the positioning pin 19 under the action of a counterweight, so that the whole positioning pin 19 is pulled out from the pattern block main body.

The counterweight needs to be larger than the thrust of the vibrator 3. The vibrator 3 is slidably connected to the guide shaft 10, the right side is abutted on the sliding body 2 through the hammer head, when the hammer head acts to strike the sliding body 2 leftwards, the hammer head receives a rightward reaction force, the weight 18 applies a leftward pulling force to the vibrator 3, when the weight is greater than the pushing force of the vibrator 3, the hammer head strikes the sliding body 2, and the main body of the vibrator 3 is still abutted on the sliding body 2 through the hammer head, so that the pushing force of the vibrator 3 is effectively transmitted to be a pulling force to the positioning pin 19.

Finally, it is pointed out that relational terms such as first and second are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The pin pulling device is characterized by comprising a sliding seat, a sliding body, a vibrator, a counterweight mechanism and a lifting device; the lifting device is arranged on one side of the sliding seat and used for positioning a position of a positioning pin to be pulled out, the other side of the sliding seat opposite to the lifting device is provided with a counterweight mechanism, the sliding seat is provided with a guide shaft, the axial direction of the guide shaft is parallel to the axial direction of the positioning pin to be pulled out, a sliding body is arranged on the guide shaft, a vibrator sliding together with the sliding body is abutted to the sliding body, the vibrator is connected with the counterweight mechanism, one side, close to the lifting device, of the upper end face of the sliding body is provided with a mounting groove, and a clamping structure is arranged in the mounting groove and used for connecting the positioning pin to be pulled out.

2. The pin pulling device as defined in claim 1, wherein the lifting device comprises a bottom fixing seat and a horizontal moving plate; the horizontal moving plate is slidably mounted on the bottom fixing seat, two rotatable brackets are arranged on the horizontal moving plate, and a V-shaped structure is formed between the two brackets.

3. The pin pulling device according to claim 2, wherein the two brackets are connected with the same screw, the screw threads at both ends of the screw are opposite in direction, each screw is matched with one screw nut, and the two screw nuts are respectively fixed on the two brackets.

4. The pin pulling device as set forth in claim 2, wherein the upper end surface of the bottom fixing base and the lower end surface of the horizontal moving plate are of dovetail-shaped mating structures, and the dovetail direction is perpendicular to the pulling direction of the positioning pin.

5. The pin pulling device according to claim 2, wherein each bracket comprises two vertical supporting rods, one ends of the two vertical supporting rods are respectively connected with the upper support of the horizontal moving plate through pin shafts to form a rotary connection, the other ends of the two vertical supporting rods are connected through transverse connecting rods to form a whole, and meanwhile, the middle positions of the two vertical supporting rods are also connected through a transverse supporting rod.

6. The pin pulling device of claim 1, wherein the guide shafts are sleeved with a slidable connector, and the body of the vibrator is fixedly connected with the connector, so that the bottom of the vibrator is suspended between the two guide shafts.

7. The pin pulling device as defined in claim 6, wherein the vibrator is disposed at the center of the sliding body together with the connecting body and is sleeved on the guide shaft.

8. The pin pulling device as defined in claim 1, wherein the vertical plate of the sliding seat is provided with a pulley, and the vibrator is connected with the weight through a steel wire rope and the pulley.

9. The pin pulling device as defined in claim 1, wherein a T-shaped groove is provided on the upper end surface of the sliding body, one end of the clamping structure is provided with a limiting plate, the clamping structure can be clamped in the T-shaped groove, and the other end is connected with the positioning pin.