Pneumatic clamp

Abstract

The utility model relates to the technical field of pneumatic clamps, and discloses a pneumatic clamp, which comprises a fixed bottom plate, a movable bottom plate and a pneumatic clamp, the limiting structure comprises a limiting part and a protection part, the limiting part comprises four sets of first hydraulic boxes fixedly mounted at the top of the fixed bottom plate, first hydraulic push rods are arranged in the first hydraulic boxes, first movable plates are arranged at the movable ends of the first hydraulic push rods, and first rotating rods are rotationally mounted in the first movable plates; the first rotating rod is rotatably mounted in the movable end of the first hydraulic push rod, a first threaded rod is spirally mounted in the first movable plate, and a first presser foot is fixedly mounted at one end of the first threaded rod; and the protection part comprises a protection ring plate fixedly mounted at the top of the fixed bottom plate, so that the purposes of supporting, fixing and limiting fixing of the automobile parts are achieved, the fixing effect of the automobile parts is improved, the position deviation of the automobile parts is prevented, and the use flexibility and the use stability of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pneumatic clamp technical field, concretely relates to a pneumatic clamp. BACKGROUND

[0002] In the production and processing of automobile parts mold parts, clamping and positioning of workpieces are crucial. Although traditional mechanical clamps can meet the basic clamping needs, they have deficiencies in precision, efficiency and flexibility.

[0003] The utility model discloses a kind of automobile accessory pneumatic welding clamps, belong to automobile accessory welding technical field, including welding stand, first drive portion and second drive portion are arranged in the top of welding stand, first drive portion drives first clamping portion to abut to the side of the clamped piece, second drive portion drives second clamping portion to abut to the other side of the clamped piece, first clamping portion includes sensor assembly, the top end of welding stand is further provided with the limiting component in the output direction of limiting first drive portion and the support arm of support anti-collision beam main body;First clamping portion and second clamping portion are clamped to the two sides of the clamped piece by first drive portion and second drive portion respectively, more further, since the clamping end of first clamping portion is provided with sensor assembly, the distance from the clamped piece can be detected by sensor assembly, to control drive portion stops and drives first clamping portion to the clamped piece, reduce the problem of excessive clamping.

[0004] But the above patent still has the following problems: in the machining process of automobile parts, the produced parts need to be sampled and detected to detect whether there is depression on the surface of the parts, and the limiting effect of the parts is poor when the parts are positioned and fixed, which can cause the position of the parts to deviate, affect the data of surface detection, and the device is inconvenient to use.

[0005] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0006] To solve the technical problem that the clamp has poor limiting effect, the basic concept of the technical scheme of the utility model is as follows:

[0007] A pneumatic clamp, comprising:

[0008] Fixed bottom plate, fixed bottom plate is placed on the table top;

[0009] The limiting structure comprises a limiting part and a protection part, the limiting part comprises four groups of first hydraulic boxes fixedly installed on the top of the fixed bottom plate, the inside of the first hydraulic box is provided with a first hydraulic push rod, the movable end of the first hydraulic push rod is provided with a first movable plate, the inside of the first movable plate is rotatably installed with a first rotating rod, the first rotating rod is rotatably installed in the inside of the movable end of the first hydraulic push rod, the inside of the first movable plate is spirally installed with a first threaded rod, and one end of the first threaded rod is fixedly installed with a first pressing foot.

[0010] As a preferred embodiment of the utility model, the limiting part further comprises a first fixed plate fixedly installed on the top of the first hydraulic box, a second rotating rod is rotatably installed in the inside of the first fixed plate, a second rotating rod is rotatably installed in the inside of the first movable plate, two groups of connecting plates are sleeved between the second rotating rod and the first fixed plate, two groups of holes are formed in the side outer wall of the first hydraulic box, and one group of first pressurizing pipes and one group of first pressure relief pipes are fixedly installed in the two groups of holes respectively.

[0011] As a preferred embodiment of the utility model, the limiting part further comprises eight groups of second hydraulic boxes fixedly installed on the top of the fixed bottom plate, a third hydraulic box is fixedly installed on the side outer wall of the second hydraulic box, the inside of the third hydraulic box is provided with a second hydraulic push rod, one end of the second hydraulic push rod is fixedly installed with a second fixed plate, and two groups of second pressing feet are fixedly installed on the side outer wall of the second fixed plate.

[0012] As a preferred embodiment of the utility model, the limiting part further comprises four groups of limiting sleeves fixedly installed on the top of the fixed bottom plate, the inside of the limiting sleeve is provided with a third pressing foot, and the outer wall of the limiting sleeve is fixedly installed with a fourth hydraulic box.

[0013] As a preferred embodiment of the utility model, two groups of holes are formed in the top of the second hydraulic box, one group of second pressurizing pipes and one group of second pressure relief pipes are fixedly installed in the two groups of holes respectively, one group of third pressurizing pipes and one group of third pressure relief pipes are fixedly installed on the side outer wall of the fourth hydraulic box, and one end of the third pressurizing pipe and the third pressure relief pipe is fixedly installed with one group of threaded sleeves.

[0014] As a preferred embodiment of the utility model, the outside of the fixed bottom plate is provided with two groups of hydraulic oil tanks, a hydraulic tank is fixedly installed on the top of the hydraulic oil tank, a pipeline is fixedly installed on the output end of the hydraulic tank, and one end of the pipeline is fixedly installed in the inside of the hydraulic oil tank.

[0015] As an optimal implementation form of the utility model, sixteen groups of holes are formed on the side outer wall of the hydraulic oil tank, and one group of connecting pipes is fixedly installed in each group of holes, pipe is connected and installed in the connecting pipe, one end of the pipe is connected and installed in the inside of the first pressurizing pipe, the second pressurizing pipe or the third pressurizing pipe, and the inside of the first pressure relief pipe, the second pressure relief pipe and the third pressure relief pipe is provided with an exhaust pipe.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The purpose of supporting, fixing and limiting the automobile parts is achieved, the fixing effect of the automobile parts is improved, the position deviation of the automobile parts is prevented, the flexibility of the device is improved, and the stability of the device is improved.

[0018] 2. The purpose of connecting and using the device is achieved, the connection efficiency of the device is improved, the connection effect between the devices is improved, the convenience of using the device is improved, and the device is convenient to control.

[0019] 3. The purpose of connecting and starting the device is achieved, the hydraulic control of the device is achieved, the convenience of controlling the device is improved, the intelligent degree of the device is improved, and the use experience of the device is optimized.

[0020] The specific embodiments of the utility model will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] In the drawings:

[0022] Figure 1 It is the structural schematic diagram of the utility model;

[0023] Figure 2 It is the fixed base structure schematic diagram of the utility model;

[0024] Figure 3 It is the hydraulic oil tank structure schematic diagram of the utility model;

[0025] Figure 4 It is the first hydraulic push rod structure schematic diagram of the utility model;

[0026] Figure 5 It is the second hydraulic box structure schematic diagram of the utility model;

[0027] Figure 6 It is the limiting sleeve structure schematic diagram of the utility model.

[0028] In the figure: 10, fixed bottom plate; 11, protective ring plate; 12, fixed base; 13, pad plate; 14, first hydraulic box; 15, first pressurizing pipe; 16, first pressure relief pipe; 17, first hydraulic push rod; 18, first movable plate; 19, first threaded rod; 20, first presser foot; 21, first rotating rod; 22, second rotating rod; 23, first fixed plate; 24, second rotating rod; 25, connecting plate; 26, second hydraulic box; 27, second pressurizing pipe; 28, second pressure relief pipe; 29, third hydraulic box; 30, second hydraulic push rod; 31, second fixed plate; 32, second presser foot; 33, limiting sleeve; 34, fourth hydraulic box; 35, third presser foot; 36, third pressurizing pipe; 37, third pressure relief pipe; 38, threaded sleeve; 39, hydraulic oil tank; 40, hydraulic tank; 41, pipeline; 42, connecting pipe. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model.

[0030] Embodiment one: a pneumatic clamp, specifically as shown in Figure 1 , Figure 2 and Figure 4 , comprising a fixed bottom plate 10, the fixed bottom plate 10 is placed on the table top; a limiting structure, the limiting structure comprises a limiting part and a protective part, the limiting part comprises four groups of first hydraulic boxes 14 fixedly installed on the top of the fixed bottom plate 10, the inside of the first hydraulic box 14 is provided with a first hydraulic push rod 17, the movable end of the first hydraulic push rod 17 is provided with a first movable plate 18, the inside of the first movable plate 18 is rotatably installed with a first rotating rod 21, the first rotating rod 21 is rotatably installed in the inside of the movable end of the first hydraulic push rod 17, the inside of the first movable plate 18 is spirally installed with a first threaded rod 19, one end of the first threaded rod 19 is fixedly installed with a first presser foot 20; the protective part comprises a protective ring plate 11 fixedly installed on the top of the fixed bottom plate 10, the top of the fixed bottom plate 10 is fixedly installed with a fixed base 12, the top of the fixed base 12 is adhesively installed with a pad plate 13. The automobile parts are fixedly limited by the limiting structure, the first hydraulic push rod 17 is started, the first movable plate 18 and the first rotating rod 21 are driven to rotate at the movable end of the first hydraulic push rod 17, the first threaded rod 19 is rotated, the first threaded rod 19 is spirally installed in the inside of the first movable plate 18, the first presser foot 20 is rotated to the top of the automobile parts, the pad plate 13 is supported and fixed by the fixed base 12, the automobile parts are supported by the pad plate 13, and the edges of the fixed bottom plate 10 are protected by the protective ring plate 11.

[0031] Specifically as shown in Figure 1 and Figure 4As shown, the limiting part further comprises a first fixed plate 23 fixedly installed on the top of the first hydraulic box 14, the inside of the first fixed plate 23 is rotatably installed with a second rotating rod 24, the inside of the first movable plate 18 is rotatably installed with a second rotating rod 22, two groups of connecting plates 25 are sleeved between the second rotating rod 22 and the first fixed plate 23, two groups of holes are formed on the outer wall of one side of the first hydraulic box 14, and one group of first pressurizing pipes 15 and one group of first pressure relief pipes 16 are fixedly installed in the two groups of holes respectively. When the first movable plate 18 rotates, the second rotating rod 22, the second rotating rod 24 and the connecting plate 25 are driven to rotate, thereby assisting the support of the first movable plate 18.

[0032] As shown in Figure 1 and Figure 5 , the limiting part further comprises eight groups of second hydraulic boxes 26 fixedly installed on the top of the fixed base plate 10, a third hydraulic box 29 is fixedly installed on the outer wall of one side of the second hydraulic box 26, a second hydraulic push rod 30 is arranged in the third hydraulic box 29, a second fixed plate 31 is fixedly installed on one end of the second hydraulic push rod 30, and two groups of second pressure feet 32 are fixedly installed on the outer wall of one side of the second fixed plate 31. Start the second hydraulic push rod 30, push the second fixed plate 31 to move, and tightly abut one end of the second pressure foot 32 with the outer wall of one side of the automobile part.

[0033] As shown in Figure 1 and Figure 6 , the limiting part further comprises four groups of limiting sleeves 33 fixedly installed on the top of the fixed base plate 10, a third pressure foot 35 is arranged in the limiting sleeve 33, and a fourth hydraulic box 34 is fixedly installed on the outer wall of the limiting sleeve 33. Start the limiting sleeve 33, drive the third pressure foot 35 to stretch and contract in the limiting sleeve 33, and the top of the third pressure foot 35 is tightly abutted with the bottom of the automobile part.

[0034] According to the above, through the structures of the fixed base plate 10, the protection ring plate 11, the fixed base 12, the pad plate 13, the first hydraulic box 14, the first pressurizing pipe 15, the first pressure relief pipe 16, the first hydraulic push rod 17, the first movable plate 18, the first threaded rod 19, the first pressure foot 20, the first rotating rod 21, the second rotating rod 22, the first fixed plate 23, the second rotating rod 24, the connecting plate 25, the second hydraulic box 26, the second pressure relief pipe 28, the third hydraulic box 29, the second hydraulic push rod 30, the second fixed plate 31, the second pressure foot 32, the limiting sleeve 33, the fourth hydraulic box 34 and the third pressure foot 35, the purpose of supporting and fixing the automobile parts is achieved, the fixing effect of the automobile parts is improved, the position deviation of the automobile parts is prevented, the flexibility of the device is improved, and the stability of the device is improved.

[0035] Example two: based on example one, as shown in Figure 1 , Figure 5 and Figure 6As shown, the top of the second hydraulic box 26 is provided with two groups of holes, and a group of second pressurizing pipes 27 and a group of second pressure relief pipes 28 are fixedly installed in the two groups of holes respectively. A group of third pressurizing pipes 36 and a group of third pressure relief pipes 37 are fixedly installed on one side outer wall of the fourth hydraulic box 34, and one end of the third pressurizing pipes 36 and the third pressure relief pipes 37 is fixedly installed with a group of threaded sleeves 38. The inside of the second hydraulic box 26 and the fourth hydraulic box 34 is pressurized by the first hydraulic push rod 17 and the third pressurizing pipes 36, and the device is depressurized by the first movable plate 18 and the third pressure relief pipes 37.

[0036] According to the above, through the structure of the second hydraulic box 26, the second pressurizing pipe 27, the second pressure relief pipe 28, the fourth hydraulic box 34, the third pressurizing pipe 36, the third pressure relief pipe 37 and the threaded sleeve 38, the purpose of connecting and using the device is achieved, the connection efficiency of the device is improved, the connection effect between the devices is improved, the convenience of using the device is improved, and the device is convenient to control.

[0037] Example three: based on example one and example two, as shown in Figure 1 and Figure 3 As shown, the outside of the fixed bottom plate 10 is provided with two groups of hydraulic oil tanks 39, and a hydraulic tank 40 is fixedly installed on the top of the hydraulic oil tank 39. The output end of the hydraulic tank 40 is fixedly installed with a pipeline 41, and one end of the pipeline 41 is fixedly installed in the inside of the hydraulic oil tank 39. Start the hydraulic tank 40, pressurize the inside of the hydraulic oil tank 39 through the pipeline 41.

[0038] As shown in Figure 1 and Figure 3 As shown, sixteen groups of holes are formed on one side outer wall of the hydraulic oil tank 39, and a group of connecting pipes 42 is fixedly installed in each group of holes. A pipeline is detachably installed in the inside of the connecting pipe 42, one end of the pipeline is detachably installed in the inside of the first pressurizing pipe 15, the second pressurizing pipe 27 or the third pressurizing pipe 36, and an exhaust pipe is arranged in the inside of the first pressure relief pipe 16, the second pressure relief pipe 28 and the third pressure relief pipe 37. The connecting pipe 42 and each air inlet pipe are connected through the pipeline.

[0039] As described above, through the structure of the first pressurizing pipe 15, the first pressure relief pipe 16, the second pressurizing pipe 27, the second pressure relief pipe 28, the hydraulic oil tank 39, the hydraulic tank 40, the pipeline 41 and the connecting pipe 42, the purpose of connecting and starting the device is achieved, the device is hydraulically controlled, the convenience of controlling the device is improved, the intelligent degree of the device is improved, and the use experience of the device is optimized.

[0040] Working principle: the pneumatic clamp mainly includes fixed base plate 10, limiting structure and some auxiliary components. Fixed base plate 10 is placed on the table top, for supporting the whole clamp, limiting structure is the core part of the clamp, including limiting part and protection part. Limiting part is used for fixing automobile parts, mainly by four groups of first hydraulic box 14 and its inside first hydraulic push rod 17, first movable plate 18, first rotating rod 21, first threaded rod 19 and first pressure foot 20. By starting first hydraulic push rod 17, first movable plate 18 and first rotating rod 21 can be driven to rotate at the movable end of first hydraulic push rod 17. At the same time, rotate first threaded rod 19, make it screw installation in the inside of first movable plate 18, thereby rotating first pressure foot 20 to the top of automobile parts to limit and fix, protection part includes protection ring plate 11 fixedly installed on the top of fixed base plate 10, fixed base 12 and backing plate 13. Protection ring plate 11 is used for protecting the edge of fixed base plate 10, and fixed base 12 and backing plate 13 are used for supporting and fixing automobile parts, limiting part also includes some auxiliary structures. For example, first fixed plate 23, second rotating rod 24 and connecting plate 25 on the top of first hydraulic box 14, which can assist in supporting when first movable plate 18 rotates. There are eight groups of second hydraulic box 26, third hydraulic box 29, second hydraulic push rod 30, second fixed plate 31 and second pressure foot 32, by starting second hydraulic push rod 30, second fixed plate 31 can be pushed to move, so that second pressure foot 32 is close to the side outer wall of automobile parts to limit, in addition, four groups of limiting sleeve 33, third pressure foot 35 and fourth hydraulic box 34 are also important components of limiting part. By starting limiting sleeve 33, third pressure foot 35 can be driven to stretch out and retract in the inside of limiting sleeve 33, so that it is close to the bottom of automobile parts to limit. In the aspect of pressurization and pressure relief, the clamp is carried out through first hydraulic push rod 17, first pressurizing pipe 15, first pressure relief pipe 16, second pressurizing pipe 27, second pressure relief pipe 28, third pressurizing pipe 36 and third pressure relief pipe 37. Hydraulic oil tank 39 and hydraulic tank 40 provide necessary hydraulic power. After starting hydraulic tank 40, the inside of hydraulic oil tank 39 is pressurized through pipeline 41, and then the pressure is transmitted to each part of the clamp through connecting pipe 42 and each air inlet pipe. When pressure relief, the pressure is released through the exhaust pipe.

[0041] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A pneumatic clamp, characterized in that, include: The base plate (10) is fixed and placed on the table. The limiting structure includes a limiting part and a protective part. The limiting part includes four sets of first hydraulic boxes (14) fixedly installed on the top of the fixed base plate (10). The first hydraulic box (14) is provided with a first hydraulic push rod (17). The movable end of the first hydraulic push rod (17) is provided with a first movable plate (18). The first movable plate (18) is rotatably installed with a first rotating rod (21). The first rotating rod (21) is rotatably installed inside the movable end of the first hydraulic push rod (17). The first movable plate (18) is spirally installed with a first threaded rod (19). One end of the first threaded rod (19) is fixedly installed with a first pressure foot (20). The protective part includes a protective ring plate (11) fixedly installed on the top of the fixed base plate (10). The top of the fixed base plate (10) is fixedly installed with a fixed base (12). The top of the fixed base (12) is attached with a pad (13).

2. The pneumatic clamp according to claim 1, characterized in that, The limiting part also includes a first fixing plate (23) fixedly installed on the top of the first hydraulic box (14). A second rotating rod is rotatably installed inside the first fixing plate (23). A second rotating rod (22) is rotatably installed inside the first movable plate (18). Two sets of connecting plates (25) are sleeved between the second rotating rod (22) and the first fixing plate (23). Two sets of holes are opened on one side of the outer wall of the first hydraulic box (14). A first pressure pipe (15) and a first pressure relief pipe (16) are fixedly installed in the two sets of holes respectively.

3. The pneumatic clamp according to claim 1, characterized in that, The limiting part also includes eight sets of second hydraulic boxes (26) fixedly installed on the top of the fixed base plate (10). A third hydraulic box (29) is fixedly installed on one side of the outer wall of the second hydraulic box (26). A second hydraulic push rod (30) is provided inside the third hydraulic box (29). A second fixing plate (31) is fixedly installed at one end of the second hydraulic push rod (30). Two sets of second pressure feet (32) are fixedly installed on one side of the outer wall of the second fixing plate (31).

4. The pneumatic clamp according to claim 1, characterized in that, The limiting part also includes four sets of limiting sleeves (33) fixedly installed on the top of the fixed base plate (10). The limiting sleeves (33) are provided with a third pressure foot (35) inside, and a fourth hydraulic box (34) is fixedly installed on the outer wall of the limiting sleeves (33).

5. The pneumatic clamp according to claim 3, characterized in that, The top of the second hydraulic box (26) has two sets of holes, and a second pressure-increasing pipe (27) and a second pressure-reducing pipe (28) are fixedly installed in the two sets of holes respectively. A third pressure-increasing pipe (36) and a third pressure-reducing pipe (37) are fixedly installed on one side of the outer wall of the fourth hydraulic box (34). A set of threaded sleeves (38) are fixedly installed at one end of the third pressure-increasing pipe (36) and the third pressure-reducing pipe (37).

6. The pneumatic clamp according to claim 1, characterized in that, Two sets of hydraulic oil tanks (39) are provided on the outside of the fixed base plate (10). A hydraulic tank (40) is fixedly installed on the top of the hydraulic oil tank (39). A pipe (41) is fixedly installed at the output end of the hydraulic tank (40). One end of the pipe (41) is fixedly installed inside the hydraulic oil tank (39).

7. The pneumatic clamp according to claim 6, characterized in that, The hydraulic oil tank (39) has sixteen sets of holes on one side of its outer wall. Each set of holes has a set of connecting pipes (42) fixedly installed inside. The connecting pipes (42) have pipes installed inside them. One end of the pipes is installed inside the first pressurizing pipe (15), the second pressurizing pipe (27), or the third pressurizing pipe (36). The first pressure relief pipe (16), the second pressure relief pipe (28), and the third pressure relief pipe (37) have exhaust pipes installed inside them.

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