Positioning structure for pneumatic clamping machining

Abstract

The utility model relates to the technical field of pneumatic clamping, and discloses a positioning structure for pneumatic clamping machining, which comprises a bottom plate. The two air cylinders are mounted at the two ends of the bottom plate respectively; the two movable plates are respectively fixed at the telescopic ends of the two air cylinders; the two clamping plates are both arranged between the two movable plates, and the clamping plates and the movable plates are connected through four connecting pieces; the two fixed plates are fixed to the side faces of the two movable plates respectively, and each fixed plate is provided with a hole site. The clamping position can be adjusted through simple rotation and lifting operation, the operation process is greatly simplified, the labor intensity is reduced, and a worker can easily adjust the distance between the clamping plate and the movable plate through the adjusting structure so as to adapt to workpieces of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic clamping, in particular to a positioning structure for pneumatic clamping processing. Background Technique

[0002] The positioning structure in pneumatic clamping processing is a key part to ensure the accurate, stable and repeatable position of the workpiece during the processing. These positioning structures are usually composed of various components, mainly including a pressure head, a positioning pin, a positioning block, etc. They realize the clamping and positioning of the workpiece under the drive of a pneumatic fixture.

[0003] The existing pneumatic clamping does not have an adjustment function. Every time a workpiece of different size is replaced, it is necessary to readjust the stroke of the cylinder. This process is not only cumbersome but also time-consuming, thus reducing the overall production efficiency. Manually adjusting the cylinder stroke requires precise operation by the staff, which increases their labor intensity, especially in the case of mass production or frequent replacement of workpiece sizes.

[0004] Therefore, it is necessary to design a positioning structure for pneumatic clamping processing to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a positioning structure for pneumatic clamping processing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A positioning structure for pneumatic clamping processing, comprising:

[0008] A bottom plate;

[0009] Two cylinders, respectively installed at both ends of the bottom plate;

[0010] Two moving plates, respectively fixed at the telescopic ends of the two cylinders;

[0011] Two clamping plates, both arranged between the two moving plates, and the clamping plates and the moving plates are connected by four connecting pieces;

[0012] Two fixing plates, respectively fixed on the sides of the two moving plates, and each fixing plate is provided with a hole position;

[0013] Two adjusting structures, respectively arranged on the two fixing plates.

[0014] As a preferred technical scheme of the utility model, the connecting piece comprises:

[0015] An outer cylinder, fixed on the side of the moving plate;

[0016] The inner rod is slidably arranged in the outer cylinder, and one end of the inner rod extends to the outside of the outer cylinder and is fixedly connected to the clamping plate;

[0017] The spring has one end connected to the outer cylinder and the other end connected to the inner rod.

[0018] As a preferred technical solution of the present invention, the adjusting structure includes:

[0019] The rotating shaft is rotatably installed in the hole position;

[0020] The eccentric wheel is fixedly sleeved on the rotating shaft;

[0021] The fixing ring is fixed on the top surface of the fixing plate and sleeved on the rotating shaft;

[0022] The end cap is fixed on the top end of the rotating shaft;

[0023] The lifting ring is slidably sleeved on the rotating shaft;

[0024] A plurality of teeth are respectively formed on the end cap and the lifting ring;

[0025] The boosting spring has one end connected to the fixing ring and the other end connected to the lifting ring.

[0026] As a preferred technical solution of the present invention, the inner surface of the outer cylinder and the outer surface of the inner rod are in mutual fit.

[0027] As a preferred technical solution of the present invention, the inner ring of the lifting ring and the outer surface of the rotating shaft are in mutual fit.

[0028] As a preferred technical solution of the present invention, the eccentric wheel is arranged facing the clamping plate.

[0029] The present invention has the following beneficial effects:

[0030] In the traditional method, whenever it is necessary to process workpieces of different sizes, the staff needs to adjust the stroke of the cylinder, which is both time-consuming and laborious. However, the new positioning structure can realize the adjustment of the clamping position through simple rotation and lifting operations, greatly simplifying the operation process and reducing the labor intensity. Through the adjusting structure, the staff can easily adjust the distance between the clamping plate and the moving plate to adapt to workpieces of different sizes. This flexibility enables the same set of pneumatic clamping system to process more types of workpieces without frequently replacing or adjusting the cylinder stroke, improving the production efficiency and equipment utilization rate. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of a positioning structure for pneumatic clamping and processing proposed by the present invention;

[0032] Figure 2 A cross-sectional structural view of a positioning structure for pneumatic clamping and machining proposed by the present utility model;

[0033] Figure 3 is Figure 2 An enlarged view of the structure at A of

[0034] In the figure: 1 base plate, 2 cylinders, 3 moving plates, 4 connecting pieces, 5 clamping plates, 6 fixing plates, 71 rotating shafts, 72 eccentric wheels, 73 fixing rings, 74 end caps, 75 lifting rings, 76 engaging teeth, 77 boosting springs. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0036] Referring to Figures 1-3 , a positioning structure for pneumatic clamping and machining includes a base plate 1; two cylinders 2, which are respectively installed at both ends of the base plate 1; two moving plates 3, which are respectively fixed to the telescopic ends of the two cylinders 2; two clamping plates 5, which are both arranged between the two moving plates 3. The clamping plates 5 and the moving plates 3 are connected by four connecting pieces 4. The connecting piece 4 includes: an outer cylinder, which is fixed to the side surface of the moving plate 3; an inner rod, which is slidably arranged in the outer cylinder, and one end of the inner rod extends to the outside of the outer cylinder. The inner surface of the outer cylinder and the outer surface of the inner rod are mutually attached and are fixedly connected to the clamping plate 5; a spring, one end of which is connected to the outer cylinder and the other end of which is connected to the inner rod; two fixing plates 6, which are respectively fixed to the side surfaces of the two moving plates 3. Each fixing plate 6 is provided with a hole. When the positioning structure for pneumatic clamping and machining proposed by the present utility model is in use, the staff can adjust the distance between the moving plate 3 and the clamping plate 5 through the adjusting structure. In this case, with the moving strokes of the two cylinders 2 remaining unchanged, the moving strokes of the two clamping plates 5 have an adjusting function. The staff can adjust the position of the clamping plate 5 through the adjusting structure. For workpieces of different sizes, the staff does not need to adjust the stroke of the cylinder 2, and the operation is convenient;

[0037] The positioning structure for pneumatic clamping processing further includes two adjusting structures, which are respectively arranged on two fixing plates 6. The adjusting structure includes: a rotating shaft 71, rotatably installed in the hole; an eccentric wheel 72, fixedly sleeved on the rotating shaft 71, and the eccentric wheel 72 is arranged facing the clamping plate 5; a fixing ring 73, fixed on the top surface of the fixing plate 6 and sleeved on the rotating shaft 71; an end cap 74, fixed on the top end of the rotating shaft 71; a lifting ring 75, slidably sleeved on the rotating shaft 71, and the inner ring of the lifting ring 75 is in mutual fit with the outer surface of the rotating shaft 71; several teeth 76, respectively opened on the end cap 74 and the lifting ring 75; a boosting spring 77, one end of which is connected to the fixing ring 73 and the other end is connected to the lifting ring 75. First, the staff member pulls down the lifting ring 75 to separate several teeth 76 on the lifting ring 75 from several teeth 76 on the end cap 74. Without the restriction of several teeth 76, the end cap 74 can rotate freely. Further, the staff member rotates the end cap 74 to drive the rotating shaft 71 to rotate. When the rotating shaft 71 rotates, it can squeeze the clamping plate 5 to make the clamping plate 5 move. The clamping plate 5 and the connecting plate 3 are connected by four connecting members 4. For the connecting member 4, the outer cylinder and the inner rod play a role in limiting and guiding the movement of the clamping plate 5. The spring arranged between the outer cylinder and the inner rod makes the clamping plate 5 always tend to approach the moving plate 3. Under the combined action of the spring and the eccentric wheel 72, the position of the clamping plate 5 will be fixed.

[0038] The specific working principle of the present utility model is as follows:

[0039] When the positioning structure for pneumatic clamping processing proposed by the present utility model is in use, the staff member can adjust the distance between the moving plate 3 and the clamping plate 5 through the adjusting structure. In this case, with the moving strokes of the two cylinders 2 remaining unchanged, the moving strokes of the two clamping plates 5 have an adjusting function. Specifically, the staff member first pulls down the lifting ring 75 to separate several teeth 76 on the lifting ring 75 from several teeth 76 on the end cap 74. Without the restriction of several teeth 76, the end cap 74 can rotate freely. Further, the staff member rotates the end cap 74 to drive the rotating shaft 71 to rotate. When the rotating shaft 71 rotates, it can squeeze the clamping plate 5 to make the clamping plate 5 move. The clamping plate 5 and the connecting plate 3 are connected by four connecting members 4. For the connecting member 4, the outer cylinder and the inner rod play a role in limiting and guiding the movement of the clamping plate 5. The spring arranged between the outer cylinder and the inner rod makes the clamping plate 5 always tend to approach the moving plate 3. Under the combined action of the spring and the eccentric wheel 72, the position of the clamping plate 5 will be fixed. Therefore, the staff member can adjust the position of the clamping plate 5 through the adjusting structure. For workpieces of different sizes, the staff member does not need to adjust the stroke of the cylinder 2, and the operation is convenient.

[0040] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A positioning structure for pneumatic clamping processing, characterized in that: include: Bottom plate (1); Two cylinders (2) are respectively mounted on two ends of the base plate (1); Two movable plates (3) are respectively fixed to the telescopic ends of the two cylinders (2); Two clamping plates (5) are each arranged between the two movable plates (3), and the clamping plates (5) and the movable plates (3) are connected via four connecting members (4); Two fixed plates (6) are respectively fixed to the sides of the two movable plates (3), and each of the fixed plates (6) is provided with a hole; The two adjustment structures are respectively arranged on the two fixing plates (6).

2. A positioning structure for pneumatic clamping processing according to claim 1, characterized in that: The connecting member (4) comprises: An outer cylinder fixed on a side of the movable plate (3); An inner rod is slidably disposed in the outer cylinder, one end of the inner rod extends to the outside of the outer cylinder and is fixedly connected to the clamping plate (5); A spring has one end connected to the outer cylinder and the other end connected to the inner rod.

3. A positioning structure for pneumatic clamping processing according to claim 2, characterized in that: The regulatory structure comprises: A rotating shaft (71) is rotatably mounted in the hole; An eccentric wheel (72) fixedly sleeved on the rotating shaft (71); A fixing ring (73) fixed to the top surface of the fixing plate (6) and sleeved on the rotating shaft (71); An end cap (74) fixed to the top end of the rotating shaft (71); A lifting ring (75) slidably sleeved on the rotating shaft (71); A plurality of latch teeth (76) are respectively provided on the end cap (74) and the lifting ring (75); A pressure boosting spring (77) has one end connected to the fixing ring (73) and the other end connected to the lifting ring (75).

4. A positioning structure for pneumatic clamping processing according to claim 2, characterized in that: The inner surface of the outer cylinder and the outer surface of the inner rod are in contact with each other.

5. The positioning structure for pneumatic clamping processing according to claim 3, characterized in that: The inner ring of the lifting ring (75) and the outer surface of the rotating shaft (71) are in contact with each other.

6. A positioning structure for pneumatic clamping processing according to claim 3, characterized in that: The eccentric wheel (72) is arranged opposite to the clamping plate (5).

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