CN218315044U

CN218315044U - 21 degree finger

Info

Publication number: CN218315044U
Application number: CN202222367371.6U
Authority: CN
Inventors: 钟世福
Original assignee: Suzhou Hendelin Robot Technology Co ltd
Current assignee: Suzhou Hendelin Robot Technology Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-01-17
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses a 21 degree shifting finger belongs to the automation equipment field. The 21-degree finger comprises: the cylinder body sets up the piston head with sliding along its axial seal, rotates through the rotation axis on the cylinder body and connects the one end of colluding the claw, colludes the tip and the piston head of the rotation link of claw and supports and lean on, colludes the tip of the rotation link of claw and still supports with the spacing subassembly of buffering that sets up on the cylinder body and support and lean on, collude two of the rotation link's of claw tip and support and lean on the position and be located the both sides of rotation axis respectively, and collude the home range of claw and be 21 degrees. Through the cooperation of the spacing buffering subassembly that leans on respectively in the both sides of rotation axis and piston head, when one of them is ejecting, another is retracted, through the inseparable cooperation of the two for collude the movable angle of claw at 21 degrees, satisfied under the special circumstances, the 21 degrees of the drawing finger requirement of mould drawing of patterns, drawing of patterns that can be better, and "embrace" the product after the drawing of patterns and come out, avoided traditional "pulling" the product out, the damage that causes the product.

Description

21 degree finger

Technical Field

The utility model relates to an automation equipment field especially relates to a 21 degree shifting finger.

Background

The shifting finger is a common fixture in industrial production, and the main function of the shifting finger is to clamp workpieces.

For example, in injection molding production, the product is molded in a mold and then needs to be demolded, and in industrial production, demolding is not performed manually but by means of automated equipment. Therefore, during demolding, the separation of the product from the mold is performed using automated equipment, which is also known as fingers.

In the existing shifting fingers, the moving angle is about 95 degrees, namely, the shifting fingers can move within the range of 95 degrees to separate products during demoulding, the demoulding in this way has no problem aiming at common products, but when the products are soft in material, or scratches cannot be formed on the surface or other special requirements cannot be met, the 95-degree shifting fingers can 'pull' the products out, and the demoulding requirement cannot be met.

Therefore, the inventor of the present invention aims to provide a 21 degree finger.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a 21-degree shifting finger.

The technical scheme of the utility model is that: a 21 degree thumb finger comprising:

the cylinder body is internally provided with a piston head in a sealing and sliding way along the axial direction of the cylinder body, one end of the hook claw is rotatably connected on the cylinder body through a rotating shaft which is vertical to the axial direction of the cylinder body, the other end of the hook claw is exposed out of the cylinder body, the end part of the rotating connecting end of the hook claw is abutted against the piston head, the end part of the rotating connecting end of the hook claw is also abutted against a buffering and limiting component arranged on the cylinder body, two abutting positions of the end part of the rotating connecting end of the hook claw are respectively positioned at two sides of the rotating shaft,

when the buffering and limiting assembly is compressed and the piston head is ejected out, the working surface of the exposed end of the hook claw is parallel to the axial direction of the cylinder body;

when the buffering and limiting assembly is ejected out and the piston head is compressed, the working surface of the exposed end of the hook claw forms a 21-degree included angle with the axial direction of the cylinder body.

Furthermore, buffering spacing subassembly includes all with cylinder body axial direction parallel's buffer spring and spacing copper sheet, sets up spacing mounting groove on the cylinder body, still set up first spring mounting hole in the spacing mounting groove set up second spring mounting hole on the spacing copper sheet, spacing copper sheet setting is in spacing mounting groove and the top of spacing copper sheet exposes spacing mounting groove all the time, buffer spring sets up in the first spring mounting hole of one-to-one and second spring mounting hole. First spring mounting hole and second spring mounting hole are two blind holes, insert buffer spring's one end and the other end respectively, and under buffer spring's effect, spacing copper sheet has outside ejecting power moreover, keeps leaning on of the rotation link to colluding the claw.

Furthermore, the exposed part of the top of the limiting copper sheet is arc-shaped. Precisely speaking, the circular arc at the top of the limiting copper sheet is continuous, and the central axis of the continuous circular arc is parallel to the rotating shaft.

Further, the inside of cylinder body sets up the open piston mounting groove in top, just the bottom of piston mounting groove communicates downwards and sets up interface channel, sets up the external screw thread in the circumference outside of the cylinder body that interface channel corresponds simultaneously. The piston head is connected with a pipeline through external threads, the pipeline can be a vent pipe or a liquid pipe, and the reciprocating movement of the piston head along the axial direction of the cylinder body is realized through air pressure or hydraulic pressure.

Furthermore, the circumference of piston head still the protrusion sets up limit stop, is in simultaneously set up spacing retaining groove on the cylinder body, limit stop sets up in spacing retaining groove, and when the working face that colludes the claw and the axial of cylinder body is 21 degrees contained angles, limit stop with the tank bottom in spacing retaining groove supports and leans on.

Further, the circumference of piston head sets up circular seal groove, set up the sealing washer in the circular seal groove. Through the setting of sealing washer, guaranteed the close contact of piston head and the inner wall of piston mounting groove when removing.

Further, the sealing ring is a lip-shaped sealing element, and a lip of the lip-shaped sealing element faces downwards. The lip seal can better guarantee the leakproofness.

Furthermore, the working surface of the hook claw is also embedded with a silica gel pad. The setting of silica gel pad has guaranteed to collude the claw and at the during operation, and is safer, to the damage of work piece when having avoided the drawing of patterns.

Furthermore, two ends of the rotating shaft are respectively provided with a C-shaped retainer ring. Through the setting of retaining ring, guaranteed the stable installation of rotation axis and cylinder body.

The utility model has the beneficial technical effects that: through the cooperation of the spacing buffering subassembly that leans on respectively in the both sides of rotation axis and piston head, when one of them is ejecting, another contracts, through the inseparable cooperation of the two for collude the activity angle of claw at 21 degrees, satisfied under the special circumstances, the 21 degrees of the thumb finger requirement of mould drawing of patterns, better drawing of patterns of ability, and "embrace" the product after the drawing of patterns and come out, avoided traditional "pull" out the product, the damage that causes the product.

Drawings

Fig. 1 is a schematic perspective view of a 21-degree finger.

Fig. 2 is a sectional view of fig. 1 taken along the axial direction of the cylinder block.

Fig. 3 is a sectional view of fig. 1 taken along an axial direction of the damper spring.

Fig. 4 is a schematic structural view of the cylinder body.

Fig. 5 is a schematic view of a position-limiting copper sheet.

Fig. 6 is a schematic view of another view angle of the position limiting copper sheet.

FIG. 7 is a schematic view of a piston head.

FIG. 8 is a cross-sectional view of the piston head.

Fig. 9 is a schematic view of the claw.

In the figure:

1. a cylinder body, 2, a piston head, 3, a rotating shaft, 4, a hook claw, 5, a buffering and limiting component, 6, a sealing ring, 7, a silica gel pad, 8, a C-shaped retainer ring,

11. a limit mounting groove 12, a first spring mounting hole 13, a piston mounting groove 14, a connecting channel 15, an external thread 16, a limit baffle groove,

21. a circular sealing groove 22 and a limit stop block,

51. buffer spring, 52, spacing copper sheet, 53, second spring mounting hole.

Detailed Description

In order to make the technical means of the present invention clearer and to implement the present invention according to the content of the specification, the following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples, which are used for illustrating the present invention and are not intended to limit the scope of the present invention.

Referring to fig. 1-9, a 21 degree finger in this embodiment includes:

the cylinder body 1 is internally provided with a piston head 2 which is arranged in the cylinder body 1 in a sealing and sliding way along the axial direction of the cylinder body 1, one end of a hook claw 4 is rotationally connected on the cylinder body 1 through a rotating shaft 3 which is vertical to the axial direction of the cylinder body 1, the other end of the hook claw 4 is exposed out of the cylinder body 1, the end part of the rotational connecting end of the hook claw 4 is abutted against the piston head 2, the end part of the rotational connecting end of the hook claw 4 is also abutted against a buffering and limiting component 5 arranged on the cylinder body 1, two abutting positions of the end part of the rotational connecting end of the hook claw 4 are respectively positioned at two sides of the rotating shaft 3,

when the buffering and limiting assembly 5 is compressed and the piston head 2 is ejected out, the working surface of the exposed end of the hook claw 4 is parallel to the axial direction of the cylinder body 1;

when the buffering and limiting assembly 5 is ejected out and the piston head 2 is compressed, the working surface of the exposed end of the hook claw 4 forms an included angle of 21 degrees with the axial direction of the cylinder body 1.

Referring to fig. 3, the buffering and limiting assembly 5 comprises a buffering spring 51 and a limiting copper sheet 52 which are axially parallel to the cylinder body 1, a limiting installation groove 11 is formed in the cylinder body 1, a first spring installation hole 12 is also formed in the limiting installation groove 11, a second spring installation hole 53 is formed in the limiting copper sheet 52, the limiting copper sheet 52 is arranged in the limiting installation groove 11, the top of the limiting copper sheet 52 is always exposed out of the limiting installation groove 11, and the buffering spring 51 is arranged in the first spring installation hole 12 and the second spring installation hole 53 which are in one-to-one correspondence. The first spring mounting hole 12 and the second spring mounting hole 53 are two blind holes, which are respectively inserted into one end and the other end of the buffer spring 51, and under the action of the buffer spring 51, the limiting copper sheet 52 has outward ejecting force to keep the abutting of the rotating connecting end of the hook claw 4.

Referring to fig. 5-6, the top exposed portion of the limiting copper sheet 52 is arc-shaped. Specifically, the arc of the top of the position-limiting copper sheet 52 is continuous, and the central axis of the continuous arc is parallel to the rotating shaft 3.

The inside of cylinder body 1 sets up open-topped piston mounting groove 13, and the bottom of piston mounting groove 13 communicates downwards and sets up interface channel 14, sets up external screw thread 15 in the circumference outside of the cylinder body 1 that interface channel 14 corresponds simultaneously. The external thread 15 is connected with a pipeline which can be a vent pipe or a liquid pipe, and the reciprocating movement of the piston head 2 along the axial direction of the cylinder body 1 is realized through air pressure or hydraulic pressure.

The circumference of the piston head 2 is also convexly provided with a limit stop 22, meanwhile, the cylinder body 1 is provided with a limit stop groove 16, the limit stop 22 is arranged in the limit stop groove 16, and when the working surface of the hook claw 4 and the axial direction of the cylinder body 1 form a 21-degree included angle, the limit stop 22 is abutted against the groove bottom of the limit stop groove 16.

Referring to fig. 7-8, a circular seal groove 21 is formed in the circumferential direction of the piston head 2, and a seal ring 6 is arranged in the circular seal groove 21. By the arrangement of the sealing ring 6, the piston head 2 is ensured to be closely contacted with the inner wall of the piston installation groove 13 when moving.

The sealing ring 6 is a lip seal, and the lip of the lip seal faces downwards. The lip-shaped sealing element can better ensure the sealing performance.

The working surface of the hook claw 4 is also embedded with a silica gel pad 7. The setting of silica gel pad 7 has guaranteed to collude claw 4 at the during operation, and is safer, to the damage of work piece when having avoided the drawing of patterns.

And C-shaped check rings 8 are respectively arranged at two ends of the rotating shaft 3. Through the setting of retaining ring, guaranteed the stable installation of rotation axis 3 with cylinder body 1.

Through the spacing buffering subassembly that leans on respectively in the both sides of rotation axis 3 and the cooperation of piston head 2, one of them is ejecting, and another is retracted, through the inseparable cooperation of the two for collude the movable angle of claw 4 at 21 degrees, satisfied under the special circumstances, the 21 degree of the group of mould drawing of patterns indicates the requirement, better drawing of patterns of ability, and "embrace" the product after the drawing of patterns and come out, avoided traditional "tear" the product and come out, the damage that causes the product.

In one embodiment, as shown in fig. 1-3, the cylinder is vertically arranged, and the hook claw is positioned at the top through a rotating shaft;

as seen from the attached drawing 2, the section is shown, the included angle is 21 degrees, specifically, it can be seen that the piston head is located at the lowest part, the limit stop is in contact with the groove bottom of the limit stop groove, and the limit copper sheet is ejected out under the action of the buffer spring, the circumference of the piston head is carefully checked, the sealing ring is a lip-shaped sealing element, the lip is downward, the central axis of the bottom of the cylinder body is provided with a connecting channel, the piston head can reciprocate up and down under the action of air pressure or hydraulic pressure through ventilation or liquid of the connecting channel;

when the piston head moves upwards, the hook claw is ejected out, namely the hook claw rotates anticlockwise around the rotating shaft, the hook claw also extrudes the buffering limiting component downwards while rotating, when the limiting copper sheet is completely contacted with the groove bottom of the limiting mounting groove, the top of the limiting copper sheet is still partially exposed, the hook claw cannot rotate continuously at the moment, and the working surface of the hook claw is parallel to the axial direction of the cylinder body at the moment, namely the included angle of 0 degree is formed;

through the conversion of the two processes, the hook claw can move within the range of 0-26 degrees, and the requirement of demoulding is met.

In another possible embodiment, a magnet is embedded below the piston head, a gap is formed between the magnet and the bottom of the piston mounting groove of the cylinder body, a gap is formed between the bottom of the piston head and the bottom of the piston mounting groove, and when the piston head is driven to move by liquid or gas, metal impurities possibly exist in the liquid or the gas and can affect the friction effect between the piston head and the inner wall of the cylinder body, so that the magnet is arranged, and the magnet can attract the small metal particles, so that the smooth sliding between the piston head and the inner wall of the cylinder body is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A 21 degree finger comprising:

the cylinder body (1), set up piston head (2) along its axial seal slip in cylinder body (1), rotate through rotation axis (3) with cylinder body (1) axial vertically on cylinder body (1) and connect the one end of colluding claw (4), the other end that colludes claw (4) exposes outside cylinder body (1), the tip of the rotation link of colluding claw (4) supports with piston head (2) and leans on, the tip of the rotation link of colluding claw (4) still supports with the spacing subassembly of buffering (5) that sets up on cylinder body (1) and leans on, colludes two of the rotation link's of claw (4) and supports the position and be located the both sides of rotation axis (3) respectively,

when the buffering and limiting assembly (5) is compressed and the piston head (2) is ejected out, the working surface of the exposed end of the hook claw (4) is parallel to the axial direction of the cylinder body (1);

when the buffering and limiting assembly (5) is ejected out and the piston head (2) is compressed, the working surface of the exposed end of the hook claw (4) forms a 21-degree included angle with the axial direction of the cylinder body (1).

2. The 21 degree finger according to claim 1, wherein: buffer limiting assembly (5) sets up spacing mounting groove (11) on cylinder body (1) including all with cylinder body (1) axial direction parallel's buffer spring (51) and spacing copper sheet (52), still set up first spring mounting hole (12) in spacing mounting groove (11) set up second spring mounting hole (53) on spacing copper sheet (52), spacing copper sheet (52) set up in spacing mounting groove (11) and the top of spacing copper sheet (52) exposes spacing mounting groove (11) all the time, buffer spring (51) set up in the first spring mounting hole (12) and second spring mounting hole (53) of one-to-one.

3. The 21 degree finger according to claim 2, wherein: the exposed part of the top of the limiting copper sheet (52) is arc-shaped.

4. The 21 degree finger according to claim 1, wherein: the inside of cylinder body (1) sets up open piston mounting groove in top (13), just the bottom of piston mounting groove (13) communicates downwards and sets up interface channel (14), sets up external screw thread (15) in the circumference outside of cylinder body (1) that interface channel (14) correspond simultaneously.

5. The 21 degree finger according to claim 1, wherein: the circumference of piston head (2) is still the protrusion and is set up limit stop (22), is in simultaneously set up limit stop groove (16) on cylinder body (1), limit stop (22) set up in limit stop groove (16), and when the working face that colludes claw (4) and the axial of cylinder body (1) are 21 degrees contained angles, limit stop (22) with the tank bottom in limit stop groove (16) supports and leans on.

6. The 21 degree finger according to claim 1, wherein: the circumference of piston head (2) sets up circular seal groove (21), set up sealing washer (6) in circular seal groove (21).

7. The 21 degree finger according to claim 6, wherein: the sealing ring (6) is a lip-shaped sealing element, and the lip mouth of the lip-shaped sealing element faces downwards.

8. The 21 degree finger according to claim 1, wherein: the working surface of the hook claw (4) is also embedded with a silica gel pad (7).

9. The 21 degree finger according to claim 1, wherein: and C-shaped check rings (8) are further arranged at two ends of the rotating shaft (3) respectively.