Positioning pin drawing device

Abstract

The utility model discloses a locating pin drawing device which comprises a first workpiece, a second workpiece arranged below the first workpiece, a locating pin inserted in the second workpiece, and a machining assembly arranged outside the locating pin, the machining assembly comprises a drawing assembly arranged outside the locating pin, and the drawing assembly comprises a drawing assembly arranged outside the locating pin. When the positioning pin needs to be drawn, the frame is arranged outside the positioning pin in a sleeving mode, due to the fact that the support and the bottom of the telescopic rod are fixedly installed, the telescopic rod is started under supporting of the support and pushes the pushing block upwards, due to the fact that the sliding block is arranged on the outer wall of the limiting rod in a sliding mode, and the connecting plate is hinged to the top face of the sliding block, the positioning pin can be pulled out. When the pushing block moves upwards, the sliding block is pulled through the connecting plate, the sliding block drives the inclined block to slide towards the positioning pin, the inclined block slides towards the gap between the positioning pin and the first workpiece, the inclined block extrudes the positioning pin along with rising of the pushing block, and the inclined block arranged on the inclined face jacks up the positioning pin.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning pin drawing, in particular to a positioning pin drawing device. Background Art

[0002] A locating pin is a mechanical element used to limit the degrees of freedom of an object to ensure it maintains a fixed position in a mechanical system. It cooperates with the workpiece hole to control the object's linear motion in the X, Y, and Z axes and its rotational motion around X, Y, and Z, thereby achieving position determination in two-dimensional space. Locating pins are commonly used to ensure the accurate alignment and positioning of mechanical parts during assembly. During maintenance or repair, these locating pins need to be pulled out for reassembly or replacement. A locating pin puller is a special tool used to pull locating pins from mechanical parts.

[0003] Traditional manual extraction methods are not only inefficient but can also damage the dowel pins or cause injury to workers.

[0004] Therefore, we propose a positioning pin pulling device that can conveniently pull out the positioning pin, improve the positioning pin pulling efficiency, and reduce the risk of damage. Utility Model Content

[0005] The purpose of the present utility model is to provide a positioning pin pulling device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a positioning pin pulling device, comprising a first workpiece, a second workpiece is arranged below the first workpiece, a positioning pin is inserted inside the second workpiece, and a processing component is arranged outside the positioning pin, the processing component includes a drawing component arranged outside the positioning pin, and a stabilizing component is arranged on the outside of the drawing component.

[0007] Preferably, the pulling assembly includes a frame arranged above the first workpiece, a limit rod is fixedly installed on the inner side of the frame, a slider is slidably provided on the outer wall of the limit rod, an inclined block is fixedly installed on the side wall of the slider, the top surface of the slider is hingedly connected to a connecting plate, the end of the connecting plate away from the slider is hingedly connected to a push block, a pull rod is fixedly installed on the top surface of the push block, a telescopic rod is fixedly installed on the bottom of the push block, and a bracket is fixedly installed on the top surface of the frame.

[0008] Preferably, the stabilizing assembly includes a fixed block fixedly mounted on the outer wall of the frame, a suction cup fixedly mounted inside the fixed block, an air valve is connected to the top surface of the suction cup, and a magnetic ring is fixedly mounted on the bottom of the fixed block.

[0009] Preferably, the end of the telescopic rod away from the push block is fixedly installed on the top surface of the bracket, and the end of the bracket is fixedly installed on the top surface of the frame. Under the support of the bracket, the telescopic rod is started to push the push block upward.

[0010] Preferably, the outer wall of the inclined block is arranged in an inclined surface, and the inclined block is arranged to slide with the top surface of the first workpiece away from the inclined surface. Under the restriction of the inclined block arranged in the inclined surface, the positioning pin can be squeezed out of the first workpiece and the second workpiece.

[0011] Preferably, there are four inclined blocks, which are distributed crosswise with the center of the telescopic rod. Under the restriction of the four inclined blocks, the pulling force can be evenly applied to the positioning pin to avoid damage to the positioning pin.

[0012] Preferably, there are eight limit rods, which are divided into four groups and distributed crosswise with the center of the telescopic rod. Under the restriction of the limit rods, when the push block pulls the slider through the connecting plate, the slider can slide on the outer wall of the limit rod.

[0013] Preferably, the magnetic ring is magnetically attracted to the first workpiece, and there are four magnetic rings, which are distributed crosswise with the center of the positioning pin. Under the restriction of the magnetic attraction between the magnetic ring and the first workpiece, the frame can be stably placed.

[0014] Preferably, the suction cup is made of rubber and is connected to an air valve. When the suction cup is in contact with the top surface of the first workpiece, the air valve is closed to seal the contact between the suction cup and the first workpiece. The suction cup is adsorbed on the top surface of the first workpiece and placed on the frame.

[0015] Preferably, there are four air valves, which are distributed crosswise with the center of the positioning pin. Under the restriction of the air valves, the sealing state of the suction cup can be controlled to install the frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The positioning pin pulling device is composed of a pulling assembly as one component. When the positioning pin needs to be pulled, the frame is sleeved on the outside of the positioning pin. Since the bracket is fixedly installed on the bottom of the telescopic rod, the telescopic rod is started under the support of the bracket, which pushes the push block upward. Since the slider is slidingly arranged with the outer wall of the limit rod, and the connecting plate is hingedly connected to the top surface of the slider, when the push block moves upward, it pulls the slider through the connecting plate, so that the slider drives the inclined block to slide toward the positioning pin, and the inclined block slides toward the gap between the positioning pin and the first workpiece. As the push block rises, the inclined block squeezes the positioning pin, and the inclined block set on the inclined surface lifts the positioning pin to pull the positioning pin out from the first workpiece and the second workpiece. This structure can conveniently pull the positioning pin. Under the squeezing of the four inclined blocks, the pulling force can be evenly applied to the positioning pin to avoid damage to the positioning pin.

[0018] 2. The locating pin pulling device is composed of a stabilizing component. When the locating pin needs to be pulled, the frame and the locating pin are concentrically mounted, the fixing block is pressed, the suction cup is pressed against the top surface of the first workpiece, and the valve is closed to allow the suction cup to be adsorbed to the top surface of the first workpiece. Since the first workpiece and the second workpiece are made of uniform magnetically adsorbable materials, the magnetic ring is magnetically adsorbed to the top surface of the first workpiece. Under the restriction of the suction cup and the magnetic ring, the frame can be stably placed, making the locating pin more stable when pulled. When the frame needs to be disassembled, the air valve is opened. At this time, the suction cup and the top surface of the first workpiece are not sealed, and the frame can be quickly disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional appearance diagram of the structure of this utility model.

[0020] Figure 2 It is a three-dimensional cross-sectional view of the structure of the utility model.

[0021] Figure 3 This is a diagram of the structural drawing component of the utility model.

[0022] Figure 4 This is an exploded schematic diagram of the structural drawing component of the utility model.

[0023] Figure 5 This is a diagram of the structural stability components of the utility model.

[0024] Figure 6 It is a cross-sectional schematic diagram of the structural stabilizing component of the utility model.

[0025] In the figure: 1. First workpiece; 2. Second workpiece; 3. Positioning pin; 4. Processing assembly; 41. Drawing assembly; 42. Stabilizing assembly; 411. Frame; 412. Limit rod; 413. Slider; 414. Inclined block; 415. Connecting plate; 416. Push block; 417. Pull rod; 418. Telescopic rod; 419. Bracket; 421. Fixing block; 422. Suction cup; 423. Air valve; 424. Magnetic ring. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings.

[0027] Example 1

[0028] A preferred embodiment of the positioning pin pulling device provided by the utility model is as follows Figures 1 to 6 Shown: A positioning pin pulling device includes a first workpiece 1;

[0029] A second workpiece 2 is provided below the first workpiece 1;

[0030] A positioning pin 3 is inserted into the interior of the second workpiece 2;

[0031] And a processing component 4 is arranged outside the positioning pin 3, the processing component 4 includes a drawing component 41 arranged outside the positioning pin 3, the drawing component 41 includes a frame 411 arranged above the first workpiece 1, a limiting rod 412 is fixedly installed on the inner side of the frame 411, a slider 413 is slidingly provided on the outer wall of the limiting rod 412, an inclined block 414 is fixedly installed on the side wall of the slider 413, the top surface of the slider 413 is hingedly connected to a connecting plate 415, the end of the connecting plate 415 away from the slider 413 is hingedly connected to a push block 416, a pull rod 417 is fixedly installed on the top surface of the push block 416, a telescopic rod 418 is fixedly installed on the bottom of the push block 416, and a bracket 419 is fixedly installed on the top surface of the frame 411.

[0032] In this embodiment, when it is necessary to pull the positioning pin 3, the frame 411 is sleeved on the outside of the positioning pin 3. Since the bracket 419 is fixedly installed with the bottom of the telescopic rod 418, the telescopic rod 418 is started under the support of the bracket 419, and it pushes the push block 416 upward. Since the slider 413 and the outer wall of the limit rod 412 are slidingly arranged, and the connecting plate 415 is hingedly connected to the top surface of the slider 413, when the push block 416 moves upward, it pulls the slider 413 through the connecting plate 415, so that the slider 41 3 drives the inclined block 414 to slide toward the positioning pin 3, and the inclined block 414 slides toward the gap between the positioning pin 3 and the first workpiece 1. As the push block 416 rises, the inclined block 414 squeezes the positioning pin 3. The inclined block 414 with an inclined surface lifts the positioning pin 3 to pull the positioning pin 3 out of the first workpiece 1 and the second workpiece 2. This structure can easily pull the positioning pin 3. Under the squeezing of the four inclined blocks 414, the pulling force can be evenly applied to the positioning pin 3 to avoid damage to the positioning pin 3.

[0033] Among them, the end of the telescopic rod 418 away from the push block 416 is fixedly installed on the top surface of the bracket 419, and the end of the bracket 419 is fixedly installed on the top surface of the frame 411. Under the support of the bracket 419, the telescopic rod 418 is started to push the push block 416 upward.

[0034] Among them, the outer wall of the inclined block 414 is set in an inclined surface, and the inclined block 414 is set to slide with the top surface of the first workpiece 1 away from its inclined surface. Under the restriction of the inclined block 414 set in the inclined surface, the positioning pin 3 can be squeezed out of the first workpiece 1 and the second workpiece 2.

[0035] There are four inclined blocks 414 , which are distributed in a cross shape with the telescopic rod 418 as the center. Under the restriction of the four inclined blocks 414 , a pulling force can be evenly applied to the positioning pin 3 to avoid damage to the positioning pin 3 .

[0036] Among them, there are eight limiting rods 412, which are divided into four groups and distributed crosswise with the telescopic rod 418 as the center. Under the restriction of the limiting rod 412, when the push block 416 pulls the slider 413 through the connecting plate 415, the slider 413 can slide on the outer wall of the limiting rod 412.

[0037] Example 2

[0038] On the basis of Example 1, a preferred embodiment of a positioning pin pulling device provided by the present invention is as follows: Figures 1 to 6 As shown: the stabilizing assembly 42 includes a fixed block 421 fixedly mounted on the outer wall of the frame 411, a suction cup 422 fixedly mounted inside the fixed block 421, an air valve 423 is connected to the top surface of the suction cup 422, and a magnetic ring 424 is fixedly mounted on the bottom of the fixed block 421.

[0039] In this embodiment, when it is necessary to pull out the locating pin 3, the frame 411 is concentrically mounted with the locating pin 3, the fixing block 421 is pressed, the suction cup 422 is pressed against the top surface of the first workpiece 1, the valve is closed, and the suction cup 422 is adsorbed on the top surface of the first workpiece 1. Since the first workpiece 1 and the second workpiece 2 are made of uniform magnetically adsorbable materials, the magnetic ring 424 is magnetically adsorbed on the top surface of the first workpiece 1. Under the restriction of the suction cup 422 and the magnetic ring 424, the frame 411 can be stably placed, making the locating pin 3 more stable when pulled out. When it is necessary to disassemble the frame 411, the air valve 423 is opened. At this time, the suction cup 422 and the top surface of the first workpiece 1 are not in a sealed state, and the frame 411 can be quickly disassembled.

[0040] The magnetic ring 424 is magnetically attracted to the first workpiece 1 . There are four magnetic rings 424 , which are distributed in a cross shape with the center of the positioning pin 3 . Under the restriction of the magnetic attraction between the magnetic ring 424 and the first workpiece 1 , the frame 411 can be stably placed.

[0041] Among them, the suction cup 422 is made of rubber, and the suction cup 422 is connected to the air valve 423. When the suction cup 422 is in contact with the top surface of the first workpiece 1, the air valve 423 is closed to make the contact between the suction cup 422 and the first workpiece 1 sealed. The suction cup 422 is adsorbed on the top surface of the first workpiece 1 and placed on the frame 411.

[0042] There are four air valves 423 , which are distributed in a cross shape with the center of the positioning pin 3 . Under the restriction of the air valves 423 , the sealing state of the suction cup 422 can be controlled to install the frame 411 .

[0043] The above is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in this field without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention. It should also be noted that the various components of the present invention are not limited to the above-mentioned overall application. The various technical features described in the specification of the present invention can be selected for use alone or in combination according to actual needs. Therefore, the present invention naturally covers other combinations and specific applications related to the utility model points of this case.

Claims

1. A positioning pin pulling device, comprising a first workpiece (1); A second workpiece (2) is arranged below the first workpiece (1); A positioning pin (3) is inserted into the interior of the second workpiece (2); and a processing component (4) arranged outside the positioning pin (3), characterized in that: The processing assembly (4) includes a drawing assembly (41) arranged outside the positioning pin (3), a stabilizing assembly (42) is arranged outside the drawing assembly (41), and the drawing assembly (41) includes a frame (411) arranged above the first workpiece (1), a limiting rod (412) is fixedly installed inside the frame (411), a slider (413) is slidably provided on the outer wall of the limiting rod (412), an inclined block (414) is fixedly installed on the side wall of the slider (413), and a connecting plate (415) is hingedly connected to the top surface of the slider (413), and the connecting plate (415) is away from the slider (4 One end of the push block (416) is hingedly connected to the push block (416), a pull rod (417) is fixedly installed on the top surface of the push block (416), a telescopic rod (418) is fixedly installed on the bottom surface of the push block (416), a bracket (419) is fixedly installed on the top surface of the frame (411), the stabilizing component (42) includes a fixed block (421) fixedly installed on the outer wall of the frame (411), a suction cup (422) is fixedly installed inside the fixed block (421), an air valve (423) is provided on the top surface of the suction cup (422), and a magnetic ring (424) is fixedly installed on the bottom of the fixed block (421).

2. A positioning pin pulling device according to claim 1, characterized in that: One end of the telescopic rod (418) away from the push block (416) is fixedly mounted on the top surface of the bracket (419), and the end of the bracket (419) is fixedly mounted on the top surface of the frame (411).

3. A positioning pin pulling device according to claim 1, characterized in that: The outer wall of the inclined block (414) is arranged in an inclined surface, and the inclined block (414) is arranged to slide with the top surface of the first workpiece (1) on a side away from the inclined surface.

4. A positioning pin pulling device according to claim 1, characterized in that: There are four inclined blocks (414) distributed in a cross shape with the telescopic rod (418) as the center.

5. The positioning pin pulling device according to claim 1, characterized in that: There are eight limit rods (412), which are divided into four groups and distributed in a cross shape with the telescopic rod (418) as the center.

6. A positioning pin pulling device according to claim 2, characterized in that: The magnetic ring (424) is magnetically attracted to the first workpiece (1), and there are four magnetic rings (424) distributed in a cross shape with the center of the positioning pin (3).

7. A positioning pin pulling device according to claim 2, characterized in that: The suction cup (422) is made of rubber, and is connected to the air valve (423).

8. The positioning pin pulling device according to claim 2, characterized in that: There are four air valves (423) arranged in a cross shape with the center of the positioning pin (3).

Images