Automatic feeding clamp

Abstract

The utility model provides an automatic feeding clamp, and belongs to the field of clamps. The problems that in the matching process of a clamp and a limiting pin, the clamp and the limiting pin rub against each other, the limiting pin or the clamp is abraded after a long time, the clamp and the limiting pin are not tightly matched, and therefore the stability and accuracy of a clamp object are reduced are solved. The finger clamping device comprises a bottom plate, an air cylinder installed on the bottom plate and a finger clamp located in the bottom plate, a containing groove used for containing the finger clamp is formed in the side edge of the bottom plate, symmetrical fixed guide blocks are arranged on the two sides of the containing groove, a movable guide block is arranged between the fixed guide blocks, and the movable guide block is arranged between the fixed guide blocks. The movable guide block is connected with the air cylinder, two limiting pins are arranged in the containing groove, the finger clamp comprises an upper clamping head and a lower clamping head, one end of the upper clamping head and one end of the lower clamping head penetrate into the containing groove and are provided with sliding ways used for being matched with the limiting pins, and the lower clamping head is connected with the movable guide block.

Description

Technical Field

[0001] The utility model belongs to the field of clamps, and in particular relates to an automatic feeding clamp. Background Art

[0002] Finger clamps are pliers-shaped clamps that open and close by cooperating with the limit pins through the extension and contraction of the clamps. During the process of cooperation between the clamps and the limit pins, the two rub against each other, which may cause wear of the limit pins or the clamps over time, resulting in a loose fit between the two, thereby reducing the stability and accuracy of the clamped items. Summary of the Invention

[0003] The purpose of the utility model is to provide an automatic loading fixture to solve the above problems in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: an automatic loading fixture, comprising a base plate, a cylinder mounted on the base plate, and a finger fixture located in the base plate, characterized in that a receiving groove for receiving the finger fixture is opened on the side of the base plate, symmetrical fixed guide blocks are provided on both sides of the receiving groove, a movable guide block is provided between the fixed guide blocks, and the movable guide block is connected to the cylinder;

[0005] Two limit pins are provided in the receiving groove, and the finger clamp includes an upper clamp and a lower clamp. One end of the upper clamp and the lower clamp is deep into the receiving groove, and a slideway is provided for cooperating with the limit pins. The lower clamp is connected to the movable guide block.

[0006] In the above-mentioned automatic loading fixture, the upper chuck and the lower chuck are arranged to overlap each other, and a connecting shaft for connecting the upper chuck and the lower chuck is provided on the overlapping portion.

[0007] In the above-mentioned automatic loading fixture, a bearing is provided on the limit pin, a gear is provided on the outer ring of the bearing, and matching layers are provided on both sides of the gear.

[0008] In the above-mentioned automatic loading fixture, a rack that cooperates with the gear is provided on one side of the slide, and an anti-wear layer for reducing the wear of the gear on the slide is provided on the other side of the slide. Grooves for the gear to pass through are provided between the anti-wear layers, and both sides of the anti-wear layer are in abutment against the matching layer.

[0009] Compared with the existing technology, the gear and rack of this automatic loading fixture are matched to improve the stability of the fixture, so that it opens and closes at a uniform speed during operation. The anti-wear layer and the matching layer are used to avoid direct contact between the slide and the gear, thereby avoiding wear of the gear and also avoiding wear of the slide and the limit pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the main body of the automatic loading fixture;

[0011] Figure 2 This is a cross-sectional view of the automatic loading fixture;

[0012] Figure 3 This is a cross-sectional view of the automatic loading fixture;

[0013] Figure 4 This is a cross-sectional view of the limit pin of this automatic loading fixture.

[0014] In the figure, 1. base plate; 2. cylinder; 3. finger clamp; 4. storage groove; 5. fixed guide block; 6. movable guide block; 7. limit pin; 8. upper chuck; 9. lower chuck; 10. slideway; 11. connecting shaft; 12. bearing; 13. gear; 14. matching layer; 15. rack; 16. anti-wear layer; 17. groove. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0016] like Figure 1 、 Figure 2 、 Figure 3 As shown, the automatic loading fixture includes a base plate 1, a cylinder 2 mounted on the base plate 1, and a finger clamp 3 located inside the base plate 1. A receiving groove 4 for receiving the finger clamp 3 is provided on the side of the base plate 1. Symmetrical fixed guide blocks 5 are provided on both sides of the receiving groove 4. A movable guide block 6 is provided between the fixed guide blocks 5. The movable guide block 6 is connected to the cylinder 2.

[0017] Two limit pins 7 are provided in the receiving groove 4. The finger clamp 3 includes an upper clamp 8 and a lower clamp 9. One end of the upper clamp 8 and the lower clamp 9 is deeply inserted into the receiving groove 4 and is provided with a slide 10 for cooperating with the limit pin 7. The lower clamp 9 is connected to the movable guide block 6.

[0018] The upper chuck 8 and the lower chuck 9 are arranged facing each other and stacked, and a connecting shaft 11 for connecting the upper chuck 8 and the lower chuck 9 is provided on the stacked portion;

[0019] A bearing 12 is provided on the limiting pin 7, a gear 13 is provided on the outer ring of the bearing 12, and matching layers 14 are provided on both sides of the gear 13;

[0020] A rack 15 that cooperates with the gear 13 is provided on one side of the slide 10, and an anti-wear layer 16 is provided on the other side of the slide 10 to reduce the wear of the gear 13 on the slide 10. A groove 17 for the gear 13 to pass through is provided between the anti-wear layers 16, and both sides of the anti-wear layer 16 are in contact with the matching layer 14.

[0021] During use, the cylinder 2 drives the movable guide block 6 to move, and the movable guide block 6 drives the lower fixture and the upper fixture to move. During the movement, the slide 10 passes through the limit pin 7, so that the upper furniture and the lower fixture are opened and closed;

[0022] After the slide 10 contacts the limit pin 7, the rack 15 cooperates with the gear 13, and the anti-wear layer 16 abuts against the matching layer 14. The anti-wear layer 16 is wear-resistant rubber. During the movement of the rack 15, the gear 13 rotates continuously, and the matching layer 14 rotates at the same time, moving along the direction of the anti-wear layer 16.

[0023] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0024] Although this document frequently uses terms such as base plate 1, cylinder 2, finger clamp 3, receiving groove 4, fixed guide block 5, movable guide block 6, stop pin 7, upper chuck 8, lower chuck 9, slideway 10, connecting shaft 11, bearing 12, gear 13, mating layer 14, rack 15, anti-wear layer 16, and groove 17, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. An automatic loading fixture, comprising a base plate (1), a cylinder (2) mounted on the base plate (1), and a finger fixture (3) located inside the base plate (1), characterized in that: The bottom plate (1) is provided with a receiving groove (4) for receiving the finger clamp (3) on its side, and symmetrical fixed guide blocks (5) are provided on both sides of the receiving groove (4), and a movable guide block (6) is provided between the fixed guide blocks (5), and the movable guide block (6) is connected to the cylinder (2); Two limit pins (7) are provided in the receiving groove (4), and the finger clamp (3) includes an upper clamp (8) and a lower clamp (9). One end of the upper clamp (8) and the lower clamp (9) is deeply inserted into the receiving groove (4) and is provided with a slideway (10) for cooperating with the limit pin (7). The lower clamp (9) is connected to the movable guide block (6).

2. The automatic loading fixture according to claim 1, characterized in that: The upper chuck (8) and the lower chuck (9) are arranged to overlap each other, and a connecting shaft (11) for connecting the upper chuck (8) and the lower chuck (9) is provided on the overlapping portion.

3. The automatic loading fixture according to claim 1, characterized in that: A bearing (12) is provided on the limiting pin (7), a gear (13) is provided on the outer ring of the bearing (12), and matching layers (14) are provided on both sides of the gear (13).

4. The automatic loading fixture according to claim 3, characterized in that: A rack (15) matching with the gear (13) is provided on one side of the slideway (10), and an anti-wear layer (16) for reducing wear of the gear (13) on the slideway (10) is provided on the other side of the slideway (10). A groove (17) for the gear (13) to pass through is provided between the anti-wear layers (16), and both sides of the anti-wear layer (16) are in contact with the matching layer (14).

Images