Clamp positioning pin with detection function and clamp

Abstract

The utility model provides a fixture positioning pin with a detection function and a fixture, and belongs to the technical field of fixtures, the fixture positioning pin comprises a base which is provided with a containing cavity and a detection hole, the detection hole is communicated with the containing cavity, and the containing cavity comprises a first position and a second position; the pin body is movably connected with the base and located in the containing cavity, and the pin body can move to the first position or the second position. The clamp positioning pin has the advantages that the clamp positioning pin is used for detecting whether a workpiece is in place or not, when the workpiece is not located on a clamp, the pin body is located at the first position, the detection hole is aligned with the first ventilation space and communicated with the outside through the first ventilation space, and when the workpiece is located on the clamp, the workpiece pushes the pin body to move from the first position to the second position; and the detection hole is sealed, so that a worker can detect whether the workpiece is in place or not by inflating the detection hole.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixture manufacturing, and relates to a fixture positioning pin with a detection function and a fixture. Background Art

[0002] A fixture is a device used to fix a workpiece for machining, inspection or assembly. It is widely used in the manufacturing process to ensure that the workpiece maintains the correct position and orientation during operation, thereby improving production efficiency and product quality.

[0003] The existing fixtures only have a single clamping function. In the application of some toolings, especially in the toolings with a relatively comprehensive automation, it is required that the fixture can actively detect and clamp the workpiece. The existing technology is difficult to achieve, and there is a large room for improvement. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixture positioning pin with a detection function and a fixture for the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A fixture positioning pin with a detection function, comprising:

[0006] A base provided with a receiving cavity and a detection hole, the detection hole communicating with the receiving cavity, the receiving cavity including a first position and a second position;

[0007] A pin body movably connected to the base and located in the receiving cavity, the pin body being movable to the first position or the second position;

[0008] When the pin body is located at the first position, the detection hole is aligned with a first ventilation space formed between the pin body and the side wall of the receiving cavity and communicates with the outside through the first ventilation space; when the pin body is located at the second position, the pin body contacts the side wall of the receiving cavity to seal the detection hole.

[0009] In the above-mentioned fixture positioning pin with a detection function, the pin body includes a first ventilation groove and a gas blocking part, the first ventilation groove being adjacent to the gas blocking part. When the pin body is located at the first position, the detection hole is aligned with the first ventilation groove and communicates with the outside through the first ventilation groove; when the pin body is located at the second position, the detection hole is aligned with the gas blocking part and is sealed by the gas blocking part.

[0010] In the above-mentioned fixture positioning pin with a detection function, the gas blocking part includes a sealing member.

[0011] In the above-mentioned fixture locating pin with a detection function, the accommodating cavity further includes a third position, the second position is located between the first position and the third position, and the pin body can move to the third position;

[0012] When the pin body is located at the third position, the detection hole aligns with a third ventilation space formed between the pin body and the side wall of the accommodating cavity, and is communicated with the outside through the third ventilation space.

[0013] In the above-mentioned fixture locating pin with a detection function, the pin body includes a second ventilation groove, the second ventilation groove is adjacent to the air-blocking portion, the air-blocking portion is located between the first ventilation groove and the second ventilation groove, and when the pin body is located at the third position, the detection hole aligns with the second ventilation groove and is communicated with the outside through the second ventilation groove.

[0014] In the above-mentioned fixture locating pin with a detection function, a bearing spring is further included. The bearing spring is located in the accommodating cavity. One end of the bearing spring contacts the bottom of the base, and the other end of the bearing spring contacts the pin body. The bearing spring pushes the pin body away from the bottom of the base.

[0015] In the above-mentioned fixture locating pin with a detection function, the base is further provided with a first limiting portion, and the pin body is provided with a second limiting portion. When the pin body moves in the direction from the second position towards the first position, the second limiting portion can contact the first limiting portion.

[0016] In the above-mentioned fixture locating pin with a detection function, the base is further provided with a detachable mounting seat. One end of the bearing spring contacts the mounting seat, and the other end of the bearing spring contacts the pin body. The bearing spring pushes the pin body away from the mounting seat.

[0017] In the above-mentioned fixture locating pin with a detection function, the base is further provided with an internal thread, and the mounting seat is provided with an external thread. The mounting seat is threadedly connected to the internal thread of the base through the external thread.

[0018] Secondly, a fixture includes the above-mentioned fixture locating pin with a detection function.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] 1. The fixture positioning pin is used to detect whether the workpiece is in place. When the workpiece is not in the fixture, the pin body is in the first position, the detection hole is aligned with the first ventilation space and communicates with the outside through the first ventilation space. When the workpiece is in the fixture, the workpiece pushes the pin body to move from the first position to the second position, and the detection hole is sealed. The staff can detect whether the workpiece is in place by inflating the detection hole.

[0021] 2. When the pin body is in the first position, the detection hole is aligned with the first ventilation groove and communicates with the outside through the first ventilation groove; when the pin body is in the second position, the detection hole is aligned with the air blocking part and is sealed by the air blocking part. By performing feature processing on the pin body alone without performing feature processing on the side of the accommodating cavity, the processing difficulty is greatly reduced, and at the same time, it is convenient for maintenance and replacement.

[0022] 3. The bearing spring pushes the pin body away from the bottom of the base, thereby pushing the pin body to move from the second position to the first position to counteract the gravity of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of the fixture positioning pin with a detection function of the present invention.

[0024] Figure 2 It is a front view of the fixture positioning pin with a detection function of the present invention when the pin body is in the second position.

[0025] Figure 3 It is Figure 2 a cross-sectional view taken along the A-A perspective of

[0026] Figure 4 It is Figure 3 an enlarged view of part B of

[0027] Figure 5 It is a schematic structural diagram of the pin body of the present invention.

[0028] Figure 6 It is a schematic structural diagram of the fixture of the present invention.

[0029] In the figure, 100, base; 110, accommodating cavity; 120, detection hole; 130, first limiting part; 200, pin body; 210, first ventilation groove; 220, air blocking part; 230, second ventilation groove; 240, second limiting part; 300, bearing spring; 400, mounting seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0033] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0035] The specific embodiments described herein are only illustrative of the spirit of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0036] As Figures 1-6 shown, a fixture positioning pin with a detection function includes: a base 100 and a pin body 200.

[0037] Among them, the base 100 is provided with a receiving cavity 110 and a detection hole 120. The detection hole 120 communicates with the receiving cavity 110, and the receiving cavity 110 includes a first position and a second position.

[0038] Wherein, the pin body 200 is movably connected to the base 100 and is located in the accommodation cavity 110, and the pin body 200 can move to the first position or the second position.

[0039] Wherein, when the pin body 200 is located at the first position, the detection hole 120 is aligned with the first ventilation space formed between the pin body 200 and the side wall of the accommodation cavity 110, and is communicated with the outside through the first ventilation space; when the pin body 200 is located at the second position, the pin body 200 contacts the side wall of the accommodation cavity 110 to seal the detection hole 120.

[0040] Specifically, when the pin body 200 is located at the second position as Figure 2 shown, when the pin body 200 is located at the first position, it moves upward compared to the position Figure 2 shown.

[0041] In this embodiment, the jig positioning pin is used to detect whether the workpiece is in place. When the workpiece is not located in the jig, the pin body 200 is located at the first position, the detection hole 120 is aligned with the first ventilation space and is communicated with the outside through the first ventilation space. When the workpiece is located in the jig, the workpiece pushes the pin body 200 to move from the first position to the second position, and the detection hole 120 is sealed. The staff can detect whether the workpiece is in place by inflating the detection hole 120 for detection.

[0042] It should be noted here that the staff can continuously inflate the detection hole 120 and detect the air pressure change of the detection hole 120. When the detection hole 120 is aligned with the first ventilation space, it is communicated with the outside, and when it is blocked, it is not communicated with the outside, so the air pressure will change.

[0043] Specifically, the first ventilation space is formed by the pin body 200 and the side wall of the accommodation cavity 110. Therefore, one of the pin body 200 or the accommodation cavity 110 can form a structure with a cavity, and the other of the two can realize the switching between the two states of the detection hole 120 being communicated with the first ventilation space and the detection hole 120 being sealed during the movement of the pin body 200 relative to the base 100.

[0044] As Figures 1-6 shown, on the basis of the above embodiment, the pin body 200 includes a first ventilation groove 210 and an air blocking portion 220. The first ventilation groove 210 is adjacent to the air blocking portion 220. When the pin body 200 is located at the first position, the detection hole 120 is aligned with the first ventilation groove 210 and is communicated with the outside through the first ventilation groove 210; when the pin body 200 is located at the second position, the detection hole 120 is aligned with the air blocking portion 220 and is sealed by the air blocking portion 220.

[0045] In this embodiment, when the pin body 200 is in the first position, the detection hole 120 is aligned with the first ventilation groove 210 and communicates with the outside through the first ventilation groove 210; when the pin body 200 is in the second position, the detection hole 120 is aligned with the air blocking portion 220 and is sealed by the air blocking portion 220. By specifically machining the pin body 200 without machining the side portion of the receiving cavity 110, the machining difficulty is greatly reduced, and at the same time, maintenance and replacement are facilitated.

[0046] As Figures 1-6 shown, on the basis of the above embodiment, the air blocking portion 220 includes a sealing member.

[0047] Among them, the sealing member can be a rubber member.

[0048] Specifically, the sealing member can be a sealing member directly sleeved on the air blocking portion 220, or the air blocking portion 220 can be directly made of a sealing material.

[0049] In this embodiment, when the pin body 200 is in the second position, the detection hole 120 is aligned with the air blocking portion 220 and is sealed by the sealing member to enhance the sealing effect of the air blocking portion 220 on the detection hole 120.

[0050] As Figures 1-6 shown, on the basis of the above embodiment, the receiving cavity 110 further includes a third position, the second position is located between the first position and the third position, and the pin body 200 can move to the third position.

[0051] When the pin body 200 is in the third position, the detection hole 120 is aligned with the third ventilation space formed between the pin body 200 and the side wall of the receiving cavity 110 and communicates with the outside through the third ventilation space.

[0052] Specifically, when the pin body 200 is in the third position, it moves downward compared to Figure 2 the position shown.

[0053] In this embodiment, the jig positioning pin can also be used to detect whether the workpiece is in place. When the workpiece exceeds the preset range of the jig (for example, two workpieces are stacked and transported to the jig), the workpiece pushes the pin body 200 to move from the second position to the third position. The detection hole 120 is aligned with the second ventilation groove 230 and communicates with the outside through the second ventilation groove 230. The staff can detect whether the workpiece is in place by inflating and detecting the detection hole 120.

[0054] As Figures 1-6As shown, on the basis of the above-described embodiment, the pin body 200 includes a second ventilation groove 230. The second ventilation groove 230 is adjacent to the air-blocking portion 220, and the air-blocking portion 220 is located between the first ventilation groove 210 and the second ventilation groove 230. When the pin body 200 is in the third position, the detection hole 120 is aligned with the second ventilation groove 230 and communicates with the outside through the second ventilation groove 230.

[0055] In this embodiment, when the pin body 200 is in the third position, the detection hole 120 is aligned with the second ventilation groove 230 and communicates with the outside through the second ventilation groove 230. By separately machining the features of the pin body 200 without machining the features on the side of the receiving cavity 110, the machining difficulty is greatly reduced, and at the same time, maintenance and replacement are facilitated.

[0056] As Figures 1-6 shown, on the basis of the above-described embodiment, a bearing spring 300 is further included. The bearing spring 300 is located in the receiving cavity 110. One end of the bearing spring 300 contacts the bottom of the base 100, and the other end of the bearing spring 300 contacts the pin body 200. The bearing spring 300 pushes the pin body 200 away from the bottom of the base 100.

[0057] In this embodiment, the bearing spring 300 pushes the pin body 200 away from the bottom of the base 100, thereby pushing the pin body 200 to move from the second position to the first position to counteract the gravity of the workpiece.

[0058] As Figures 1-6 shown, on the basis of the above-described embodiment, the base 100 is further provided with a first limiting portion 130, and the pin body 200 is provided with a second limiting portion 240. When the pin body 200 moves in the direction from the second position to the first position, the second limiting portion 240 can contact the first limiting portion 130.

[0059] Specifically, when the second limiting portion 240 contacts the first limiting portion 130, the pin body 200 is in the first position.

[0060] In this embodiment, the maximum movement range of the pin body 200 is restricted by the contact between the second limiting portion 240 and the first limiting portion 130.

[0061] As Figures 1-6 shown, on the basis of the above-described embodiment, the base 100 is further provided with a detachable mounting seat 400. One end of the bearing spring 300 contacts the mounting seat 400, and the other end of the bearing spring 300 contacts the pin body 200. The bearing spring 300 pushes the pin body 200 away from the mounting seat 400.

[0062] In this embodiment, the detachable connection manner between the mounting base 400 and the base 100 is not specifically limited. It can be a plug-in connection, or it can be a connection through fasteners, or it can be other detachable connection manners. The detachable mounting base 400 facilitates the installation of the load-bearing spring 300 and its maintenance.

[0063] As Figures 1-6 As shown, on the basis of the above embodiment, the base 100 is further provided with an internal thread, the mounting base 400 is provided with an external thread, and the mounting base 400 is threadedly connected to the internal thread of the base 100 through the external thread.

[0064] In this embodiment, since the mounting base 400 is threadedly connected to the internal thread of the base 100 through the external thread, the position of the mounting base 400 relative to the base 100 can be finely adjusted by rotating the mounting base 400, thereby adjusting the deformation range of the load-bearing spring 300.

[0065] As Figures 1-6 As shown, a fixture includes a fixture positioning pin with a detection function as described above.

Claims

1. A fixture locating pin with a detection function, characterized in that Comprising: A base provided with a receiving cavity and a detection hole, the detection hole communicating with the receiving cavity, the receiving cavity including a first position and a second position; A pin body movably connected to the base and located in the receiving cavity, the pin body being movable to the first position or the second position; When the pin body is located at the first position, the detection hole is aligned with a first ventilation space formed between the pin body and the side wall of the receiving cavity and communicates with the outside through the first ventilation space; when the pin body is located at the second position, the pin body contacts the side wall of the receiving cavity to seal the detection hole.

2. The jig locating pin with a detection function according to claim 1, characterized in that: The pin body includes a first ventilation groove and an air-blocking portion, the first ventilation groove being adjacent to the air-blocking portion. When the pin body is located at the first position, the detection hole is aligned with the first ventilation groove and communicates with the outside through the first ventilation groove; when the pin body is located at the second position, the detection hole is aligned with the air-blocking portion and is sealed by the air-blocking portion.

3. The fixture locating pin with a detection function according to claim 2, characterized in that: The air-blocking portion includes a sealing member.

4. The fixture locating pin with a detection function according to claim 2, wherein: The receiving cavity further includes a third position, the second position being located between the first position and the third position, the pin body being movable to the third position; When the pin body is located at the third position, the detection hole is aligned with a third ventilation space formed between the pin body and the side wall of the receiving cavity and communicates with the outside through the third ventilation space.

5. The jig positioning pin with a detection function according to claim 4, characterized in that: The pin body includes a second ventilation groove, the second ventilation groove being adjacent to the air-blocking portion, the air-blocking portion being located between the first ventilation groove and the second ventilation groove. When the pin body is located at the third position, the detection hole is aligned with the second ventilation groove and communicates with the outside through the second ventilation groove.

6. The fixture locating pin with a detection function according to claim 1, characterized in that: Further comprising a bearing spring located in the receiving cavity, one end of the bearing spring contacting the bottom of the base, the other end of the bearing spring contacting the pin body, the bearing spring pushing the pin body away from the bottom of the base.

7. The fixture locating pin with a detection function according to claim 6, characterized in that: The base is further provided with a first limiting portion, and the pin body is provided with a second limiting portion. When the pin body moves in the direction from the second position towards the first position, the second limiting portion can contact the first limiting portion.

8. The jig positioning pin with a detection function according to claim 6, wherein: The base is further provided with a detachable mounting seat, one end of the bearing spring contacting the mounting seat, the other end of the bearing spring contacting the pin body, the bearing spring pushing the pin body away from the mounting seat.

9. The jig locating pin with a detection function according to claim 8, characterized in that: The base is further provided with an internal thread, and the mounting seat is provided with an external thread. The mounting seat is threadedly connected to the internal thread of the base through the external thread.

10. A fixture, characterized in that, Including a fixture positioning pin with a detection function according to any one of claims 1-9.

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