A space-saving elastic positioning pin device

Abstract

The utility model relates to a space-saving elastic positioning pin device, comprising a main body, a positioning pin is slidably installed in the main body, and a spring gives a pre-tightening force to the positioning pin through a transition sleeve and a lever fork; the main body is provided with a pin hole, a fork hole, and a spring groove that are connected in sequence, the positioning pin slides in the pin hole, the lever fork is located in the fork hole, and the spring and the transition sleeve are located in the spring groove; transmission flat grooves are provided on both sides of the middle of the positioning pin; a transition ring groove, a rotating sphere, and a front fork are provided on the lever fork in sequence; the front fork is located in the transmission flat groove, a spring hole is provided on the upper part of the transition sleeve, and a transition arc surface is provided at the bottom of the transition sleeve, and the transition arc surface contacts and fits with the transition ring groove on the lever fork; a cover plate is provided at the top of the spring groove, and both ends of the spring contact the cover plate and the bottom of the spring hole respectively; a nut is installed at the end of the fork hole. The utility model can install a positioning pin with a pre-tightening force in a limited space, and can realize the precise adjustment of the position of the positioning pin.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling fixtures and relates to a space-saving elastic positioning pin device. Background Art

[0002] The existing elastic locating pin spring is installed at the bottom of the locating pin. In order to meet the positioning accuracy requirements, the positioning guide part needs to be larger than twice the positioning diameter. When the elastic locating pin has requirements for elastic force, the spring also needs a large installation space. The installation position of the spring is at the bottom of the elastic locating pin, which makes it difficult to replace and debug the spring. Summary of the invention

[0003] The purpose of the utility model is to provide a space-saving elastic positioning pin device, which can solve the above-mentioned problems and realize accurate adjustment of the position of the positioning pin.

[0004] According to the technical solution provided by the utility model: a space-saving elastic locating pin device includes a main body, a locating pin is slidably installed in the main body, and a spring gives a pre-tightening force to the locating pin through a transition sleeve and a lever fork; a pin hole, a fork hole, and a spring groove which are connected in sequence are provided in the main body, the locating pin slides in the pin hole, the lever fork is located in the fork hole, and the spring and the transition sleeve are located in the spring groove; transmission flat grooves are provided on both sides of the middle of the locating pin; a transition ring groove, a rotating sphere, and a front fork are provided on the lever fork in sequence; the front fork is located in the transmission flat groove, a spring hole is provided on the upper part of the transition sleeve, and a transition arc surface is provided on the bottom of the transition sleeve, and the transition arc surface contacts and fits with the transition ring groove on the lever fork; a cover plate is provided on the top of the spring groove, and both ends of the spring contact the cover plate and the bottom of the spring hole respectively; a nut is installed at the end of the fork hole.

[0005] As a further improvement of the utility model, the top of the positioning pin is a frustum-shaped positioning portion and extends out of the pin hole.

[0006] As a further improvement of the utility model, the middle part of the positioning pin is cylindrical and matches the pin hole.

[0007] As a further improvement of the utility model, a cover plate is mounted on the main body by means of bolts.

[0008] As a further improvement of the utility model, a nut is threadedly installed on the end of the shift fork hole.

[0009] As a further improvement of the utility model, the main body is connected to the specific equipment through a positioning adjustment block; the positioning adjustment block includes a connected transverse adjustment bar and a longitudinal adjustment bar; the transverse adjustment bar is connected to the positioning adjustment block through bolts, and an X adjustment gasket is placed between the transverse adjustment bar and the positioning adjustment block; the longitudinal adjustment bar is connected to the positioning adjustment block through bolts, and a Y adjustment gasket is placed between the longitudinal adjustment bar and the positioning adjustment block.

[0010] As a further improvement of the utility model, a Z adjustment gasket is provided at the bottom of the positioning adjustment block.

[0011] The positive effects of this application are:

[0012] The utility model can install a positioning pin with a pre-tightening force in a limited space, and can realize accurate adjustment of the position of the positioning pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of another side of the utility model.

[0015] Figure 3 It is a front cross-sectional view of the utility model.

[0016] Figure 4 It is a top sectional view of the utility model.

[0017] Figure 1-Figure 4 The invention comprises a main body 1, a positioning pin 2, a lever fork 3, a transition sleeve 4, a spring 5, a cover plate 6, a limit nut 7, a positioning adjustment block 8, an X adjustment gasket 9, a Y adjustment gasket 10, a Z adjustment gasket 11 and the like. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] In order to enable those skilled in the art to better understand the solution of the utility model, the following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described herein. In addition, similar terms such as "including" and "having" mean that in addition to those contents already listed in "including" and "having", other contents that have not been listed can also be "included" and "having"; for example, a process, method, system, product or device that can include a series of steps or units is not necessarily limited to those steps or units that have been clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] Due to the angle of the drawing, some components may not be drawn, but their positions and connection relationships can be partially understood based on the text expression.

[0022] like Figure 1 As shown, the utility model is a space-saving elastic positioning pin device, comprising a main body 1, a positioning pin 2 is slidably installed in the main body 1, and a spring 5 gives a pre-tightening force to the positioning pin 2 through a transition sleeve 4 and a lever fork 3.

[0023] The main body 1 is provided with a pin hole, a fork hole and a spring groove which are connected in sequence. The positioning pin 2 slides in the pin hole. The lever fork 3 is located in the fork hole. The spring 5 and the transition sleeve 4 are located in the spring groove.

[0024] like Figure 1 As shown, the top of the positioning pin 2 is a frustum-shaped positioning portion extending out of the pin hole, and transmission flat grooves 2-1 are provided on both sides of the middle of the positioning pin 2. The middle of the positioning pin 2 is cylindrical and fits the pin hole.

[0025] The lever fork 3 is provided with a transition ring groove 3-1, a rotating ball 3-2, and a front fork 3-3 in sequence; the front fork 3-3 is located in the transmission flat groove 2-1, driving the positioning pin 2 to move along the pin hole.

[0026] A spring hole is provided on the upper part of the transition sleeve 4 for placing the spring 5; a transition arc surface is provided on the bottom of the transition sleeve 4, and the transition arc surface contacts and fits with the transition ring groove 3-1 on the lever fork 3. A cover plate 6 is provided on the top of the spring groove, and the two ends of the spring 5 contact the cover plate 6 and the bottom of the spring hole respectively. The cover plate 6 is installed on the main body 1 by bolts.

[0027] A nut 7 is threadedly mounted on the end of the fork hole, and the nut 7 prevents the lever fork 3 from sliding out of the main body 1.

[0028] The main body 1 is connected to a specific device via a positioning adjustment block 8. The advantage of using the positioning adjustment block 8 is that an X adjustment gasket 9 and a Y adjustment gasket 10 can be added between the main body 1 and the positioning adjustment block 8 to adjust the specific position of the positioning pin 2 on the device.

[0029] like Figure 4 As shown, the positioning adjustment block 8 includes a lateral adjustment bar 8-1 and a longitudinal adjustment bar 8-2 connected to each other. The lateral adjustment bar 8-1 is connected to the positioning adjustment block 8 by bolts, and an X adjustment gasket 9 is placed between the lateral adjustment bar 8-1 and the positioning adjustment block 8. The longitudinal adjustment bar 8-2 is connected to the positioning adjustment block 8 by bolts, and a Y adjustment gasket 10 is placed between the longitudinal adjustment bar 8-2 and the positioning adjustment block 8.

[0030] A Z adjustment gasket 11 is provided at the bottom of the positioning adjustment block 8 , and the Z adjustment gasket 11 adjusts the height of the positioning pin 2 .

[0031] The working process of the utility model is as follows:

[0032] According to specific work requirements, the positioning adjustment block 8 is installed on the equipment to ensure that the positioning pin 2 is in the correct position. Figure 3 As shown, the spring 5, supported by the cover plate 6, pushes the transition sleeve 4 downward, and the transition sleeve 4 presses down the transition ring groove 3-1, causing the front fork 3-3 on the other side of the lever fork 3 to rotate around the rotating ball 3-2. While rotating, the front fork 3-3 contacts the transmission flat groove 2-1, lifts the locating pin 2 upward, and always gives the locating pin 2 an upward preload.

[0033] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A space-saving elastic positioning pin device, comprising a main body (1), characterized in that: A positioning pin (2) is slidably installed in the main body (1), and a spring (5) provides a pre-tightening force to the positioning pin (2) through a transition sleeve (4) and a lever fork (3); a pin hole, a fork hole, and a spring groove are sequentially connected in the main body (1), the positioning pin (2) slides in the pin hole, the lever fork (3) is located in the fork hole, and the spring (5) and the transition sleeve (4) are located in the spring groove; transmission flat grooves (2-1) are provided on both sides of the middle of the positioning pin (2); a transition ring groove (3-1), a rotating ball (3-2), and a front fork (3-3) are sequentially provided on the lever fork (3); the front fork (3-3) is located in the transmission flat groove (2-1), a spring hole is provided on the upper part of the transition sleeve (4), and a transition arc surface is provided on the bottom of the transition sleeve (4), and the transition arc surface contacts and matches with the transition ring groove (3-1) on the lever fork (3); a cover plate (6) is provided on the top of the spring groove, and two ends of the spring (5) contact the cover plate (6) and the bottom of the spring hole respectively; a nut (7) is installed at the end of the fork hole.

2. The space-saving elastic positioning pin device according to claim 1, characterized in that: The top of the positioning pin (2) is a frustoconical positioning portion and extends out of the pin hole.

3. The space-saving elastic positioning pin device according to claim 1, characterized in that: The middle part of the positioning pin (2) is cylindrical and fits into the pin hole.

4. The space-saving elastic positioning pin device according to claim 1, characterized in that: The cover plate (6) is mounted on the main body (1) by means of bolts.

5. The space-saving elastic positioning pin device according to claim 1, characterized in that: Thread the nut (7) on the end of the fork hole.

6. The space-saving elastic positioning pin device according to claim 1, characterized in that: The main body (1) is connected to a specific device via a positioning adjustment block (8); the positioning adjustment block (8) comprises a horizontal adjustment bar (8-1) and a vertical adjustment bar (8-2) connected to each other; the horizontal adjustment bar (8-1) and the positioning adjustment block (8) are connected via bolts, and an X adjustment gasket (9) is placed between the horizontal adjustment bar (8-1) and the positioning adjustment block (8); the vertical adjustment bar (8-2) and the positioning adjustment block (8) are connected via bolts, and a Y adjustment gasket (1-0) is placed between the vertical adjustment bar (8-2) and the positioning adjustment block (8).

7. The space-saving elastic positioning pin device according to claim 6, characterized in that: A Z adjustment gasket (1-1) is provided at the bottom of the positioning adjustment block (8).

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