Turning plate type pneumatic clamp

Abstract

The utility model discloses a turning plate type pneumatic clamp which comprises a fixed seat, and one end of the fixed seat is detachably connected with a fixed clamping plate and a turning clamping plate. The overturning clamping plate comprises a connecting plate hinged to the fixing base and a material clamping plate which is arranged at one end of the connecting plate and can be perpendicular to the fixing clamping plate. A connecting rod is hinged to the connecting plate, one end of the connecting rod is hinged to a sliding seat slidably connected with the fixing seat, and an air cylinder with the telescopic end connected with the sliding seat is arranged on the fixing seat. The moving direction of the telescopic end of the air cylinder is consistent with that of the sliding base. According to the turning plate type pneumatic clamp, one of the two matched clamping plates can be driven by the air cylinder to conduct turning action, the other clamping plate is kept fixed, the clamping plate with the fixed position serves as a plate connected with a mechanical arm, and the bending precision of the pneumatic clamp when a workpiece is bent after being clamped is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic clamps, in particular to a flap-type pneumatic clamp. Background Art

[0002] The sheet metal feeding mechanism of the bending machine has a suction cup, a pneumatic clamp, and an electric clamp, all of which are fixed at the end of the manipulator. The suction cup is more suitable for loading and unloading larger sheet metal without holes, and the pneumatic clamp is suitable for loading and unloading small sheet metal. However, in the prior art, after the pneumatic clamp clamps the workpiece, the position of the workpiece relative to the end origin of the manipulator is uncertain, and the bending accuracy cannot be guaranteed when the workpiece is bent. The electric clamp can guarantee the processing accuracy, but the cost is too high. At the same time, the cylinder on the pneumatic clamp is prone to produce a large radial force due to excessive force, which reduces the service life of the pneumatic clamp. Utility Model Content

[0003] The purpose of the utility model is to provide a flip-plate pneumatic clamp, which can drive one of the two matching clamps to perform a flipping action through a cylinder, while the other clamp remains fixed, and the clamp with a fixed position is used as a plate connected to a robot to ensure the bending accuracy when the pneumatic clamp clamps the workpiece for bending.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a flap-type pneumatic clamp, comprising a fixed seat, one end of which is detachably connected with a fixed clamping plate and a flip clamping plate;

[0005] The flip clamp includes a connecting plate hingedly arranged on the fixing seat, and a clamping plate arranged at one end of the connecting plate and perpendicular to the fixing clamp;

[0006] A connecting rod is hinged on the connecting plate, one end of the connecting rod is hinged on a sliding seat slidably connected to the fixed seat, and a cylinder with a telescopic end connected to the sliding seat is provided on the fixed seat;

[0007] The moving direction of the telescopic end of the cylinder is consistent with the moving direction of the slide.

[0008] In a preferred embodiment of the utility model, the fixing seat is composed of two parallel side plates, a bottom plate for connecting the two side plates, and a cylinder seat which can be connected to the side plates and the bottom plate respectively;

[0009] Furthermore, the side plate and the bottom plate can be clamped with the cylinder seat.

[0010] In a preferred embodiment of the utility model, one end of the fixing clamping plate is stepped and overlapped on the bottom plate, and the fixing clamping plate and the bottom plate are detachably connected by a plurality of groups of spaced vertical bolts.

[0011] In a preferred embodiment of the utility model, the connecting plate and the side plate on the fixed seat, the connecting rod and the connecting plate, and the connecting rod and the sliding seat are all hinged by pins, and elastic retaining rings are clamped on the outer peripheries of both ends of the pins.

[0012] In a preferred embodiment of the present invention, both the clamping plate and the fixed clamping plate are provided with pads.

[0013] In a preferred embodiment of the utility model, the slide seat is arranged on a slider, a guide rail slidably matched with the slider is arranged on the bottom plate, and the slide seat is slidably connected to the bottom plate through a linear slide rail composed of the slider and the guide rail.

[0014] The beneficial effects of the utility model are as follows: the cylinder drives the flip clamp to flip and open, and the slide seat guides the cylinder piston rod, which can eliminate the radial force borne by the cylinder piston rod. During the opening and closing process of the pneumatic clamp, the fixed clamp is fixed relative to the cylinder body, and the cylinder is directly fixed to the end of the manipulator. During the clamping process, the cylinder also remains fixed relative to the end of the manipulator, ensuring the bending accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of a pneumatic clamp in a preferred embodiment of the utility model;

[0017] Figure 2 It is a side view structural schematic diagram of the pneumatic clamp in the preferred embodiment of the utility model;

[0018] Figure 3 In the preferred embodiment of the utility model Figure 2 Schematic diagram of the cross-sectional structure at AA;

[0019] Figure 4 It is a structural schematic diagram of a fixed splint in a preferred embodiment of the utility model;

[0020] Among them, 101, side plate; 102, bottom plate; 2, fixed clamping plate; 301, connecting plate; 302, clamping plate; 4, connecting rod; 5, sliding seat; 6, cylinder; 7, cylinder seat; 8, bolt; 9, pin shaft; 10, elastic retaining ring; 11, pad; 12, slider; 13, guide rail. DETAILED DESCRIPTION

[0021] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0023] like Figure 1-Figure 4 As shown, a flap-type pneumatic clamp comprises a fixed seat, one end of which is detachably connected with a fixed clamping plate 2 and a flip clamping plate;

[0024] The flip clamp includes a connecting plate 301 hingedly arranged on a fixed seat, and a clamping plate 302 arranged at one end of the connecting plate 301 and perpendicular to the fixed clamping plate 2;

[0025] A connecting rod 4 is hinged on the connecting plate 301, one end of the connecting rod 4 is hinged on a sliding seat 5 which is slidably connected to a fixed seat, and a cylinder 6 whose telescopic end is connected to the sliding seat 5 is provided on the fixed seat;

[0026] The moving direction of the telescopic end of the cylinder 6 is consistent with the moving direction of the slide 5.

[0027] Specifically, a mechanical linkage structure is formed between the flipping splint, the fixed seat and the connecting rod 4. The cylinder 6 indirectly drives the connecting rod 4 and the flipping splint to move through the slide seat 5. The slide seat 5 can effectively eliminate the radial force borne by the telescopic end of the cylinder 6, thereby improving the service life of the clamp. The clamping plate 302 on the flipping splint is perpendicular to the fixed splint 2 after flipping, and the product can be clamped and fixed between the fixed splint 2 and the clamping plate 302. The pressure of the clamping plate 302 acting vertically on the product can not only ensure the stability of the product clamping and fixing, but also the larger contact area between the clamping plate 302 and the product can effectively prevent the product from being indented. And after the fixed splint 2 in the technical solution is connected to the fixed seat, the fixed splint 2 can remain relatively still relative to the fixed seat, and the fixed seat and the cylinder 6 also remain relatively still relative to the end of the manipulator. After the manipulator is connected to the cylinder 6 or the fixed seat, the bending accuracy can be guaranteed when the workpiece is bent.

[0028] Further, such as Figure 1 , Figure 3 As shown, the fixing seat is composed of two parallel side plates 101, a bottom plate 102 for connecting the two side plates 101, and a cylinder seat 7 which can be connected to the side plates 101 and the bottom plate 102 respectively. The fixing seat adopts a split design. The side plates 101 and the bottom plate 102, and the cylinder seat 7 and the side plates 101 and the bottom plate 102 can be connected by bolts 8. While ensuring the strength of the fixing seat, it can also reduce the manufacturing cost to a certain extent, which is conducive to wide promotion.

[0029] The side panels 101 and the bottom panel 102 can be snap-fitted to the cylinder base 7. The side panels 101 and the bottom panel 102 can be snap-fitted to the cylinder base 7 to complete installation and positioning before assembly. After the connection, the bolts 8 can be used to strengthen the strength between the side panels 101, the bottom panel 102 and the cylinder base 7.

[0030] To further increase the connection strength between the fixing splint 2 and the fixing seat, and to facilitate the replacement of different fixing splints 2. Figure 1 , Figure 4 As shown, one end of the fixing clamp plate 2 is stepped and overlapped on the bottom plate 102, and the fixing clamp plate 2 and the fixing seat are detachably connected by a plurality of groups of spaced vertical bolts 8.

[0031] In this embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, the connecting plate 301 and the side plate 101 on the fixed seat, the connecting rod 4 and the connecting plate 301, and the connecting rod 4 and the slide seat 5 are all hinged through the pin 9, and the outer periphery of both ends of the pin 9 is clamped with an elastic retaining ring 10. The hinge is made through the pin 9, and the strength is high. The position of the pin 9 is limited by the elastic retaining ring 10, which is easy to install and disassemble the entire structure. At the same time, in this technical solution, in order to increase the smoothness and accuracy of the turning action of the connecting plate 301 and the connecting rod 4, a bearing that can be sleeved on the outer periphery of the pin 9 can be set on the side plate 101, the connecting plate 301, the connecting rod 4, and the slide seat 5.

[0032] Further, such as Figure 1 , Figure 3 As shown, the clamping plate 302 and the fixed clamping plate 2 are both provided with a pad 11. The pad 11 can be made of a softer metal such as brass to prevent damage to the surface of the product. At the same time, the pad 11 of different thickness, different specifications, and different shapes can be replaced to meet the needs of clamping different products.

[0033] Further, such as Figure 3As shown, the slide 5 is arranged on the slider 12, and the base plate 102 is provided with a guide rail 13 that slidably cooperates with the slider 12. The slide 5 is slidably connected to the base plate 102 through a linear slide composed of the slider 12 and the guide rail 13. The slide 5 and the fixed seat are slidably connected through the linear slide to ensure the accuracy of the horizontal movement of the slide 5, while distributing the force on the slide 5, further reducing the radial force on the telescopic end of the cylinder 6, and ensuring the service life of the pneumatic clamp.

[0034] Working principle: The cylinder 6 indirectly drives the connecting rod 4 and the flip clamp through the slide 5. The slide 5 can effectively eliminate the radial force on the telescopic end of the cylinder 6, thereby increasing the service life of the clamp. The clamping plate 302 on the flip clamp can clamp the product between the fixed clamp 2 and the clamping plate 302. After the fixed clamp 2 is connected to the fixed seat, the fixed clamp 2 can remain relatively still relative to the fixed seat, and the fixed seat can also remain relatively still relative to the end of the manipulator, so that the bending accuracy can be guaranteed when the workpiece is bent.

[0035] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A flap-type pneumatic clamp, comprising a fixing seat, characterized in that: One end of the fixing seat is detachably connected to a fixing clamp (2) and a flip clamp; The flip clamp comprises a connecting plate (301) hingedly arranged on the fixing seat, and a clamping plate (302) arranged at one end of the connecting plate (301) and capable of being perpendicular to the fixing clamp (2); A connecting rod (4) is hingedly connected to the connecting plate (301), one end of the connecting rod (4) is hingedly connected to a sliding seat (5) slidably connected to the fixing seat, and a cylinder (6) is provided on the fixing seat, the telescopic end of which is connected to the sliding seat (5); The moving direction of the telescopic end of the cylinder (6) is consistent with the moving direction of the slide seat (5).

2. The flap-type pneumatic clamp according to claim 1, characterized in that: The fixing seat comprises two side plates (101) arranged in parallel, a bottom plate (102) used to connect the two side plates (101), and a cylinder seat (7) which can be connected to the side plates (101) and the bottom plate (102) respectively; Furthermore, the side plate (101) and the bottom plate (102) can be snap-connected with the cylinder seat (7).

3. The flap-type pneumatic clamp according to claim 2, characterized in that: One end of the fixing clamp plate (2) is in a step shape and overlaps the bottom plate (102); the fixing clamp plate (2) and the bottom plate (102) are detachably connected via a plurality of groups of spaced vertical bolts (8).

4. The flap-type pneumatic clamp according to claim 3, characterized in that: The connecting plate (301) and the side plate (101) on the fixing seat, the connecting rod (4) and the connecting plate (301), and the connecting rod (4) and the sliding seat (5) are all hingedly connected via a pin shaft (9), and elastic retaining rings (10) are clamped on the outer peripheries of both ends of the pin shaft (9).

5. The flap-type pneumatic clamp according to claim 4, characterized in that: The clamping plate (302) and the fixed clamping plate (2) are both provided with a pad (11).

6. The flap-type pneumatic clamp according to claim 5, characterized in that: The slide seat (5) is arranged on the slider (12); a guide rail (13) slidably matched with the slider (12) is arranged on the base plate (102); the slide seat (5) is slidably connected to the base plate (102) via a linear slide rail composed of the slider (12) and the guide rail (13).

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