Angular pin positioner

Abstract

The utility model belongs to the technical field of positioning devices, and particularly relates to an angular pin positioner which comprises a to-be-positioned piece and a base, the to-be-positioned piece and the base are positioned and assembled through matching of a positioning pin and a positioning seat, and a lock seat is installed in the corresponding position of the to-be-positioned piece in an embedded mode. A to-be-positioned part is arranged on the upper surface of the base, a positioning pin is detachably assembled on the lower surface of the to-be-positioned part through a lock seat, a positioning seat is installed in the corresponding position of the base in an embedded mode, the positioning pin is matched with the positioning seat, side cavities are formed in the positioning seat in an annular array mode, and attaching plates are movably assembled on the inner wall of the positioning seat and correspond to the side cavities in an embedded mode. A differential top plate is movably assembled in the side cavity, and a prompt turning plate is hinged to the upper surface of the positioning seat and located at the top of the side cavity in an embedded mode. According to the utility model, redundant fit clearance between the conical pin body and the positioning seat can be directly and obviously known, and the positioning pin is endowed with a flexible and detachable structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning devices, and particularly relates to an angular pin locator. Background Art

[0002] An angular pin is a positioning device used in machining, usually used in cooperation with the hole position or end face in a workpiece to ensure the accurate position of the workpiece during the machining process. Through the conical design, the angular pin can achieve a more precise fit, reduce the contact gap between the pin hole, thereby improving the accuracy and stability of positioning.

[0003] When the angular pin is worn, resulting in an excessive gap in the fit with the pin hole, the locator is in an abnormal fit at this time. However, due to the existence of this gap, it cannot be directly and obviously known to the staff, which will lead to the corresponding device being directly put into use under the premise of fitting error, and ultimately resulting in obvious errors in the results of machining work, and even leading to machining accidents. Content of the Utility Model

[0004] The purpose of the utility model is to provide an angular pin locator, which can directly and obviously know the excessive fit gap between the conical pin body and the positioning seat, and endows the positioning pin with a flexible and detachable structure.

[0005] The technical solution adopted by the utility model is specifically as follows:

[0006] An angular pin locator includes a piece to be positioned and a base. The piece to be positioned and the base are positioned and assembled through the cooperation of a positioning pin and a positioning seat. A lock seat is embedded and installed inside the piece to be positioned at the corresponding position, and a positioning pin is detachably assembled on the lower surface of the piece to be positioned through the lock seat. A positioning seat is embedded and installed inside the base at the corresponding position, and the positioning pin cooperates with the positioning seat;

[0007] The positioning pin includes a pin rod, and a conical pin body is integrally arranged at one end of the pin rod. Strip-shaped top bead bodies are fixedly arranged in a circular array on the outer wall of the conical pin body;

[0008] Side cavities are formed in a circular array inside the positioning seat, and through grooves are formed through the side walls of the side cavities close to the inner wall of the positioning seat. A sticker is embedded and movably assembled on the inner wall of the positioning seat corresponding to the side cavity, and a penetrating body penetrating through the through groove is integrally arranged on the outer wall of the sticker. A differential top plate is movably assembled inside the side cavity, and a second spring is connected between the differential top plate and the inner wall of the side cavity. The differential top plate and the adjacent sticker are assembled through screws. A prompt flap is embedded and hinged on the upper surface of the positioning seat at the top of the side cavity, and the top end of the differential top plate is attached to the lower surface of the prompt flap;

[0009] When the positioning pin and the positioning seat are properly matched, the inner surface of the attaching plate and the inner surface of the positioning seat are on the same curved surface, and the upper surface of the prompting flap and the upper surface of the positioning seat are on the same plane.

[0010] One side of the penetrating body is provided with a notch. A screw tube is fixedly arranged on the side wall of the differential top plate. The screw tube passes through the notch and is placed inside the penetrating body, and is screwed with a screw.

[0011] The hinged end of the prompting flap is close to the center of the surface of the positioning seat.

[0012] The other end of the positioning pin is integrally provided with a locking rod. The diameter of the locking rod is smaller than that of the pin rod, and the junction of the pin rod and the locking rod is transitioned with a chamfer.

[0013] Lock beads are symmetrically and movably assembled inside the locking rod.

[0014] An inner rod is movably assembled inside the positioning pin at the axis. A first spring for resetting the inner rod is installed inside the positioning pin. One end of the inner rod is integrally connected with a tapered rod, and the tapered rod is in pressing contact with the lock bead.

[0015] An inner groove for providing space to press the inner rod is opened on the lower surface of the tapered pin body.

[0016] The technical effects achieved by the present utility model are:

[0017] In the present utility model, through the tilted prompting flap, a gap is formed between the to-be-positioned part and the base, thereby directly and obviously knowing that there is an excessive fitting gap between the tapered pin body and the positioning seat. In this way, the staff is reminded to stop the work of the corresponding equipment in time, and machining accidents caused by installation errors are avoided in time.

[0018] In the present utility model, by pressing the inner rod, the lock beads are in a free state. At this time, the positioning pin can be directly pulled out from the corresponding lock seat, and the disassembly work of the positioning pin can be completed, endowing the positioning pin with a flexible and detachable structure, which is convenient for replacing the damaged positioning pin. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the use of the positioner provided by the embodiment of the present utility model;

[0020] Figure 2 is an exploded view of the combination of the lock seat, the positioning pin and the positioning seat provided by the embodiment of the present utility model;

[0021] Figure 3 is a sectional view of the use plane of the positioner provided by the embodiment of the present utility model;

[0022] Figure 4It is the bottom disassembled anatomical view of the positioning seat provided by the embodiment of the present utility model.

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Part to be positioned; 2. Base; 3. Lock seat; 4. Positioning pin; 401. Pin rod; 402. Tapered pin body; 403. Strip-shaped top bead body; 404. Locking rod; 405. Locking bead; 406. Inner rod; 407. Tapered rod; 408. Spring I; 5. Positioning seat; 501. Side cavity; 502. Through slot; 503. Adhesive plate; 504. Through-connecting body; 505. Differential top plate; 506. Spring II; 507. Prompt flap; 508. Screw tube; 509. Screw. Specific embodiments

[0025] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model.

[0026] As Figures 1-4 shown, an angular pin positioner includes a part to be positioned 1 and a base 2. The part to be positioned 1 and the base 2 are positioned and assembled through the cooperation of a positioning pin 4 and a positioning seat 5. A lock seat 3 is embedded and installed inside the part to be positioned 1 at the corresponding position, and a positioning pin 4 is detachably assembled on the lower surface of the part to be positioned 1 through the lock seat 3. A positioning seat 5 is embedded and installed inside the base 2 at the corresponding position, and the positioning pin 4 cooperates with the positioning seat 5;

[0027] Referring to the attached Figure 2 , the positioning pin 4 includes a pin rod 401. One end of the pin rod 401 is integrally provided with a tapered pin body 402, and strip-shaped top bead bodies 403 are fixedly arranged in a circular array on the outer wall of the tapered pin body 402;

[0028] Referring to the attached Figures 2-3 , the other end of the positioning pin 4 is integrally provided with a locking rod 404. The diameter of the locking rod 404 is smaller than the diameter of the pin rod 401, and the junction of the pin rod 401 and the locking rod 404 is chamfered. Locking beads 405 are symmetrically and movably assembled inside the locking rod 404. An inner rod 406 is movably assembled inside the positioning pin 4 along the axis, and a spring I 408 for resetting the inner rod 406 is installed inside the positioning pin 4. One end of the inner rod 406 is integrally connected with a tapered rod 407, and the tapered rod 407 is in pressing contact with the locking beads 405. An inner groove for providing space to press the inner rod 406 is opened on the lower surface of the tapered pin body 402.

[0029] According to the above structure, when it is necessary to position and install the positioning member 1 on the base 2, it is only necessary to align the tapered pin body 402 with the positioning seat 5 at the corresponding position and insert it. The strip-shaped top bead body 403 directly contacts the inner wall of the positioning seat 5. When it is necessary to replace the corresponding positioning pin 4, find the inner groove at the bottom of the tapered pin body 402 and press the inner rod 406. The inner rod 406 moves and squeezes the spring 1 408. The tapered rod 407 then moves away from the locking bead 405. The two locking beads 405 are separated. After being squeezed, the tapered rod 407 will be in a free state. At this time, the locating pin 4 can be directly pulled out from the corresponding lock seat 3 to complete the removal of the locating pin 4. Conversely, when installing the locating pin 4, the inner rod 406 is also pressed, and the pin rod 401 is inserted into the lock seat 3 at the same time. Then the inner rod 406 is loosened, and the lock bead 405 will support the inner wall of the lock seat 3, and the locating pin 4 will be installed. The above structure gives the locating pin 4 a flexible and detachable structure, which is convenient for the quick disassembly and assembly of the locating pin 4.

[0030] See attached Figures 3-4 The inner ring array of the positioning seat 5 is provided with a side cavity 501, and the side wall of the side cavity 501 close to the inner wall of the positioning seat 5 is penetrated with a through groove 502, the inner wall of the positioning seat 5 and the position corresponding to the side cavity 501 are embedded and movably assembled with a plate 503, and the outer wall of the plate 503 is integrally provided with a through-connection body 504 penetrating the through groove 502, the inner movably assembled with a differential top plate 505 of the side cavity 501, and a spring 2 506 is connected between the differential top plate 505 and the inner wall of the side cavity 501, the differential top plate 505 and the adjacent plate 503 are assembled by screws 509, a notch is provided on one side of the through-connection body 504, a screw 508 is fixedly provided on the side wall of the differential top plate 505, the screw 508 passes through the notch and is placed in the through-connection body 504, and is screwed with the screw 509.

[0031] See attached Figures 3-4 A prompt flap 507 is hingedly embedded on the upper surface of the positioning seat 5 and located at the top of the side cavity 501. The hinged end of the prompt flap 507 is close to the center of the surface of the positioning seat 5, and the top of the differential top plate 505 is in contact with the lower surface of the prompt flap 507. When the positioning pin 4 and the positioning seat 5 cooperate normally, the inner surface of the sticking plate 503 and the inner surface of the positioning seat 5 are on the same curved surface, and the upper surface of the prompt flap 507 and the upper surface of the positioning seat 5 are in the same plane.

[0032] According to the above structure, when the positioning pin 4 and the positioning seat 5 are properly matched, the attaching plate 503 directly bears the extrusion of the corresponding strip-shaped bead body 403. At this time, the inner surface of the attaching plate 503 and the inner surface of the positioning seat 5 are on the same curved surface, and the upper surface of the prompt flap 507 and the upper surface of the positioning seat 5 are on the same plane. However, when the strip-shaped bead body 403 at a certain place on the surface of the tapered pin body 402 is worn, the tapered pin body 402 and the positioning seat 5 cannot be closely matched, and there is an excessive gap between them. At this time, the attaching plate 503 located in the gap still fits with the worn strip-shaped bead body 403 under the elastic force of the second spring 506. However, the inner surface of this attaching plate 503 will not be on the same curved surface as the inner surface of the positioning seat 5, and the position of the corresponding differential top plate 505 will have an inclined deviation from the standard position, and the prompt flap 507 at the top of the differential top plate 505 will be lifted and rotated. In the above process, through the lifted prompt flap 507, there is a gap between the part to be positioned 1 and the base 2, thereby directly knowing that there is an excessive mating gap between the tapered pin body 402 and the positioning seat 5. In this way, the staff can be reminded to stop the work of the corresponding equipment in time, and machining accidents caused by installation errors can be avoided in time.

[0033] The working principle of the present utility model is as follows: when the positioning pin 4 and the positioning seat 5 are properly matched, the attaching plate 503 directly bears the extrusion of the corresponding strip-shaped bead body 403. At this time, the inner surface of the attaching plate 503 and the inner surface of the positioning seat 5 are on the same curved surface, and the upper surface of the prompt flap 507 and the upper surface of the positioning seat 5 are on the same plane. However, when the strip-shaped bead body 403 at a certain place on the surface of the tapered pin body 402 is worn, the tapered pin body 402 and the positioning seat 5 cannot be closely matched, and there is an excessive gap between them. At this time, the attaching plate 503 located in the gap still fits with the worn strip-shaped bead body 403 under the elastic force of the second spring 506. However, the inner surface of this attaching plate 503 will not be on the same curved surface as the inner surface of the positioning seat 5, and the position of the corresponding differential top plate 505 will have an inclined deviation from the standard position, and the prompt flap 507 at the top of the differential top plate 505 will be lifted and rotated, and finally there is a gap between the part to be positioned 1 and the base 2;

[0034] When it is necessary to replace the damaged positioning pin 4, find the inner groove at the bottom of the tapered pin body 402 and press the inner rod 406. The inner rod 406 moves and squeezes the first spring 408, and the tapered rod 407 immediately moves away from the lock beads 405. After the two lock beads 405 are separated from the extrusion of the tapered rod 407, they will be in a free state. At this time, the positioning pin 4 can be directly pulled out from the corresponding lock seat 3, and the disassembly work of the positioning pin 4 can be completed.

[0035] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. An angle pin locator, comprising a piece to be positioned (1) and a base (2), wherein the piece to be positioned (1) and the base (2) are positioned and assembled by the cooperation of a locating pin (4) and a locating seat (5), characterized in that: A lock seat (3) is embedded inside the corresponding position of the to-be-positioned part (1), and a positioning pin (4) is detachably assembled on the lower surface of the to-be-positioned part (1) through the lock seat (3); a positioning seat (5) is embedded inside the corresponding position of the base (2), and the positioning pin (4) cooperates with the positioning seat (5); The positioning pin (4) comprises a pin rod (401), one end of which is integrally provided with a conical pin body (402), and the outer wall of the conical pin body (402) is fixedly provided with strip-shaped top beads (403) in an annular array; The positioning seat (5) is provided with a side cavity (501) in an annular array inside, and a through groove (502) is formed through the side wall of the side cavity (501) close to the inner wall of the positioning seat (5), and a plate (503) is embedded and movably assembled at a position of the inner wall of the positioning seat (5) corresponding to the side cavity (501), and a through-connecting body (504) penetrating the through groove (502) is integrally provided on the outer wall of the plate (503), and the internal movable assembly of the side cavity (501) There is a differential top plate (505), and a second spring (506) is connected between the differential top plate (505) and the inner wall of the side cavity (501), the differential top plate (505) and its adjacent contact plate (503) are assembled by screws (509), and a prompt flap (507) is embedded and hinged on the upper surface of the positioning seat (5) and located at the top of the side cavity (501), and the top end of the differential top plate (505) is in contact with the lower surface of the prompt flap (507); When the positioning pin (4) and the positioning seat (5) cooperate normally, the inner surface of the pasting plate (503) and the inner surface of the positioning seat (5) are on the same curved surface, and the upper surface of the prompt flap (507) and the upper surface of the positioning seat (5) are on the same plane.

2. An angle pin locator according to claim 1, characterized in that: A notch is provided on one side of the connecting body (504), and a screw tube (508) is fixedly provided on the side wall of the differential top plate (505). The screw tube (508) passes through the notch and is placed in the connecting body (504), and is screwed to the screw (509).

3. The angle pin locator according to claim 1, characterized in that: The hinged end of the prompt flap (507) is close to the center of the circle on the surface of the positioning seat (5).

4. The angle pin locator according to claim 1, characterized in that: The other end of the positioning pin (4) is integrally provided with a locking rod (404), the diameter of the locking rod (404) is smaller than the diameter of the pin rod (401), and a chamfered transition is adopted at the junction of the pin rod (401) and the locking rod (404).

5. The angle pin locator according to claim 4, characterized in that: The locking rod (404) is symmetrically and movably assembled with a locking bead (405) inside.

6. An angle pin locator according to claim 5, characterized in that: An inner rod (406) is movably assembled inside the axis of the positioning pin (4), and a spring (408) for returning the inner rod (406) is installed inside the positioning pin (4). A conical rod (407) is integrally connected to one end of the inner rod (406), and the conical rod (407) is in compression contact with the locking ball (405).

7. An angle pin locator according to claim 6, characterized in that: The lower surface of the tapered pin body (402) is provided with an inner groove for providing a space for pressing the inner rod (406).

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