Telescopic positioning pin

Abstract

According to the telescopic positioning pin, a first through hole and a second through hole are formed in the upper portion and the lower portion of a shell correspondingly, first graphite guide sleeves are arranged in the first through hole and the second through hole correspondingly, a positioning pin rod is connected with the first graphite guide sleeves, a positioning protruding block is arranged on the positioning pin rod, and a first spring, an unlocking sliding block and a clamping spring are arranged on the positioning pin rod; the unlocking sliding block is arranged below the positioning protruding block, a distance exists between the unlocking sliding block and the positioning protruding block, the width of the unlocking sliding block is larger than that of the positioning protruding block, a third through hole and a fourth through hole are formed in the side walls of the two sides of the shell, second graphite guide sleeves are arranged in the third through hole and the fourth through hole, and positioning sliding blocks are arranged in the second graphite guide sleeves. The head portions of the positioning sliding blocks face the positioning pin rod, the distance between the head portions of the two positioning sliding blocks is smaller than the width of the positioning protruding block, and the side, facing the positioning pin rod, of each positioning sliding block is arranged to be an inclined face. According to the utility model, the extension and retraction of the positioning pin are realized through pushing, and the positioning pin can be mounted on any tool, so that the line body transfer efficiency is improved.

Description

Technical Field

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

[0002] Line logistics and line transfer industries are the top priorities in the development of the automated production industry. Products or mechanisms need to be positioned during logistics and transfer. In the existing technology, most of the positioning devices for logistics and transfer are fixed on the transfer devices. More importantly, general positioning devices require external power actuators to achieve the positioning function. However, it is difficult to drive the power actuators to accompany the transfer process, which will reduce the transfer efficiency. Utility Model Content

[0003] In order to solve the technical problem in the prior art that the positioning device cannot be separated from the power actuator and the working efficiency is low, the present invention provides a telescopic positioning pin.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a telescopic positioning pin, characterized in that it includes a shell, a positioning pin rod and a positioning slider, the upper and lower parts of the shell are respectively provided with a first through hole and a second through hole connected to the internal space thereof, the first through hole and the second through hole are each provided with a first graphite guide sleeve, the positioning pin rod is connected to the two first graphite guide sleeves, and the two ends of the positioning pin rod extend out of the shell, the positioning pin rod is provided with a positioning protrusion, the positioning pin rod is provided with a first spring, the upper end of the first spring contacts the first graphite guide sleeve in the first through hole, and the lower end contacts the upper surface of the positioning protrusion, the positioning pin rod is also provided with an unlocking slider and a retaining spring, the unlocking slider is arranged below the positioning protrusion, and is slidably arranged on the positioning pin On the rod, there is a spacing between the unlocking slider and the positioning protrusion, the retaining spring is arranged below the unlocking slider, the width of the unlocking slider is greater than the width of the positioning protrusion, and the side walls on both sides of the shell are respectively provided with a third through hole and a fourth through hole connected to the internal space thereof, and a second graphite guide sleeve is arranged in the third through hole and the fourth through hole, and a positioning slider is arranged in each second graphite guide sleeve, and each positioning slider includes a rod portion and a head portion, and a second spring is arranged on the rod portion, one end of the second spring is in contact with the second graphite guide sleeve, and the other end is in contact with the head portion of the positioning slider, the heads of the two positioning sliders are both facing the positioning pin rod, and the distance between the heads of the two positioning sliders is less than the width of the positioning protrusion, and a side of each positioning slider facing the positioning pin rod is set as an inclined surface;

[0005] Preferably, a locking screw and a gasket are provided at the outer end of the rod;

[0006] Preferably, a blocking block is provided in the third through hole and the fourth through hole, and the second graphite guide sleeve is provided in the blocking block;

[0007] Preferably, a mounting hole is provided on the shell.

[0008] Compared with the prior art, the utility model has the beneficial effect that, by providing a positioning protrusion, an unlocking slider and a positioning slider, the positioning pin can be extended and retracted only by pushing without connecting a power actuator, thereby improving the efficiency of line logistics and line transportation; by providing a mounting hole on the shell, the positioning pin can be installed on any tooling as required, thereby improving the utilization rate of the positioning pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 The utility model is a schematic diagram of a telescopic positioning pin structure.

[0010] Figure 2 It is a front view of a telescopic positioning pin of the utility model.

[0011] Figure 3 It is a left view of a telescopic positioning pin of the utility model.

[0012] Figure 4 The utility model is a cross-sectional view of a telescopic positioning pin in an extended state.

[0013] Figure 5 The utility model is a cross-sectional view of a telescopic positioning pin in a retracted state.

[0014] In the figure: 1: housing; 2: positioning pin rod; 3: mounting hole; 4: positioning protrusion; 5: unlocking slider; 6: retaining spring; 7: first graphite guide sleeve; 8: first spring; 9: second spring; 10: positioning slider; 1001: head; 1002: rod; 11: second graphite guide sleeve; 12: gasket; 13: locking screw; 14: blocking block. DETAILED DESCRIPTION

[0015] like Figures 1 to 5As shown, a specific implementation of a telescopic positioning pin of the utility model is as follows, including a shell 1, a positioning pin rod 2 and a positioning slider 10, the shell 1 is provided with a mounting hole 3, the upper and lower parts of the shell 1 are respectively provided with a first through hole and a second through hole connected to the internal space thereof, the first through hole and the second through hole are both provided with a first graphite guide sleeve 7, the positioning pin rod 2 is connected to the two first graphite guide sleeves 7, and the two ends of the positioning pin rod 2 extend out of the shell 1, a positioning protrusion 4 is provided on the positioning pin rod 2, a first spring 8 is provided on the positioning pin rod 2, the upper end of the first spring 8 contacts with the first graphite guide sleeve 7 in the first through hole, and the lower end contacts with the upper surface of the positioning protrusion 4, the positioning pin rod 2 is also provided with an unlocking slider 5 and a retaining spring 6, the unlocking slider 5 is arranged below the positioning protrusion 4, and is slidably arranged on the positioning pin rod 2, there is a spacing between the unlocking slider 5 and the positioning protrusion 4, and the retaining spring 6 is arranged below the unlocking slider 5, The width of the unlocking slider 5 is greater than the width of the positioning protrusion 4. A third through hole and a fourth through hole connected to the internal space thereof are respectively provided on the side walls on both sides of the shell 1. A blocking block 14 is provided in the third through hole and the fourth through hole. A second graphite guide sleeve 11 is provided in the blocking block 14. A positioning slider 10 is provided in each second graphite guide sleeve 11. Each positioning slider 10 includes a rod 1002 and a head 1001. A second spring 9 is provided on the rod 1002. One end of the second spring 9 contacts with the second graphite guide sleeve 11, and the other end contacts with the head 1001 of the positioning slider 10. The heads 1001 of the two positioning sliders 10 are both facing the positioning pin 2, and the distance between the heads 1001 of the two positioning sliders 10 is less than the width of the positioning protrusion 4. The side of each positioning slider 10 facing the positioning pin 2 is set as an inclined surface, and a locking screw 13 and a gasket 12 are provided at the outer end of the rod 1002.

[0016] Working principle: The entire positioning pin is installed on the transfer mechanism or other mechanism that requires a positioning device through the mounting hole 3 on the housing 1. When positioning is required, the lower end of the positioning pin rod 2 is pushed, and the positioning protrusion 4 on the positioning pin rod 2 moves upward. Since the inner side of the head 1001 of the positioning slide block 10 is an inclined surface, as the positioning protrusion 4 moves upward, the positioning slide block 10 moves to both sides and compresses the second spring 9. When the positioning protrusion 4 completely moves to the top of the positioning slide block 10, the second spring 9 pushes the positioning slide block 10 to move to the middle and clamps the positioning protrusion 4, so that the positioning pin rod 2 does not move downward, thereby realizing the extension of the positioning pin rod 2. When the positioning pin rod 2 is required When retracting, continue to push the positioning pin rod 2 upward. At this time, the unlocking slider 5 moves upward and pushes the positioning slider 10 to both sides. The positioning sliders 10 on both sides clamp the unlocking slider 5 under the action of the second 9 springs. At this time, since the width of the unlocking slider 5 is greater than the width of the positioning protrusion 4, when the unlocking slider 5 moves upward, the positioning slider 10 disengages from the positioning protrusion 4, and the first spring 8 pushes the positioning slider 10 to fall. After the positioning protrusion 4 falls and contacts with the unlocking slider 5, it drives the unlocking slider 5 to fall together. After the unlocking slider 5 disengages from the positioning slider 10, it falls back on the retaining spring 6, and the positioning protrusion 4 also moves to the bottom of the positioning slider 10, and the positioning pin rod 2 retracts.

Claims

1. A telescopic positioning pin, It is characterized in that The invention comprises a shell (1), a positioning pin rod (2) and a positioning slide block (10). The upper and lower parts of the shell (1) are respectively provided with a first through hole and a second through hole connected to the internal space thereof. The first through hole and the second through hole are both provided with a first graphite guide sleeve (7). The positioning pin rod (2) is connected to the two first graphite guide sleeves (7), and the two ends of the positioning pin rod (2) extend out of the shell (1). The positioning pin rod (2) is provided with a positioning protrusion (4). The positioning pin rod (2) is provided with a first spring (8). The upper end of the first spring (8) contacts the first graphite guide sleeve (7) in the first through hole, and the lower end contacts the upper surface of the positioning protrusion (4). The positioning pin rod (2) is also provided with an unlocking slide block (5) and a retaining spring (6). The unlocking slide block (5) is arranged below the positioning protrusion (4) and is slidably arranged on the positioning pin rod (2). There is a spacing between the unlocking slide block (5) and the positioning protrusion (4). The retaining spring (6) is arranged between the unlocking slide block (5) and the positioning protrusion (4). ), the width of the unlocking slider (5) is greater than the width of the positioning protrusion (4), and the side walls of the housing (1) are respectively provided with a third through hole and a fourth through hole connected to the internal space thereof, and the third through hole and the fourth through hole are provided with a second graphite guide sleeve (11), and each second graphite guide sleeve (11) is provided with a positioning slider (10), and each positioning slider (10) comprises a rod (1002) and a head (1001), and the rod (1002) is provided with a second spring (9), one end of the second spring (9) is in contact with the second graphite guide sleeve (11), and the other end is in contact with the head (1001) of the positioning slider (10), the heads (1001) of the two positioning sliders (10) are both facing the positioning pin rod (2), and the distance between the heads (1001) of the two positioning sliders (10) is less than the width of the positioning protrusion (4), and the side of each positioning slider (10) facing the positioning pin rod (2) is set as an inclined surface.

2. A telescopic positioning pin according to claim 1, It is characterized in that The outer end of the rod portion (1002) is provided with a locking screw (13) and a gasket (12).

3. A telescopic positioning pin according to claim 1, It is characterized in that The third through hole and the fourth through hole are provided with sealing blocks (14), and the second graphite guide sleeve (11) is arranged in the sealing blocks (14).

4. The telescopic positioning pin according to claim 1, It is characterized in that The housing (1) is provided with a mounting hole (3).

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