Anti-rotation air cylinder

Abstract

The utility model provides an anti-rotation air cylinder, belongs to the technical field of air cylinders, and solves the technical problems that an existing anti-rotation air cylinder is easy to block and inconvenient to disassemble and maintain and the like. The anti-rotation air cylinder comprises a cylinder body, a rear cover, a front cover and a piston rod, an air inlet and an extraction opening are formed in the cylinder body, the rear cover is arranged at the rear end of the cylinder body, the front cover is connected with the cylinder body through a first bolt, the piston rod penetrates through the front cover, extends into the cylinder body and is connected with a piston, and two copper sleeves are arranged between the piston rod and the front cover. The copper sleeve is clamped in the front cover and arranged on the periphery of the piston rod in a sleeving mode, a blocking groove is formed in the outer portion of the front cover, a milling groove is formed in the piston rod, a baffle is connected to the blocking groove through a second bolt, and the baffle abuts against the milling groove. The anti-rotation device has the advantages of preventing rotation and being convenient to maintain and clean at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of cylinders and relates to a cylinder, in particular to an anti-rotation cylinder. Background Art

[0002] In the field of automation equipment and machining, due to the limited scope of work, the products that need to be pushed are relatively small in thickness direction. Therefore, the push block installed at the front end of the cylinder is relatively long. In order to ensure that the push block is completely in contact with the product when pushing the product, it is necessary to ensure that the piston rod does not rotate relative to the product. In order to prevent the push block from rotating, multi-axis cylinders are usually used, such as dual-axis cylinders and cylinders with guide rods.

[0003] However, these cylinders are wider than single-axis cylinders, and cannot be used in places where the cylinder installation position requirements are relatively limited. When using a single-axis cylinder to push a push block to push a product, a plane is often installed under the push block to guide and prevent the push block from rotating. The traditional way of installing the guide plane is very strict with the use environment. Once there is a foreign object, the push block will be stuck. Since the transmission connection is not convenient for disassembly, it is difficult to repair. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems in the prior art and to propose an anti-rotation cylinder. The technical problem to be solved by the utility model is: how to achieve anti-rotation while facilitating maintenance and cleaning.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] An anti-rotation cylinder comprises a cylinder body, a rear cover, a front cover and a piston rod. The cylinder body is provided with an air inlet and an air exhaust port. The rear cover is arranged at the rear end of the cylinder body. The front cover is connected to the cylinder body by a first bolt. The piston rod passes through the front cover and extends into the cylinder body and is connected to a piston. Two copper sleeves are arranged between the piston rod and the front cover. The copper sleeves are clamped in the interior of the front cover and sleeved on the outer periphery of the piston rod. A retaining groove is arranged on the outside of the front cover. A milling groove is arranged on the piston rod. A retaining plate is connected to the retaining groove by a second bolt, and the baffle plate is in conflict with the milling groove.

[0007] The working principle of the utility model is as follows: during assembly, the rear cover is inserted into the rear end of the cylinder body, the piston is connected to the piston rod, the piston rod passes through the front cover, and finally the front cover is connected to the cylinder body through the first bolt. The assembly is simple and convenient, and only a milling groove needs to be opened on the piston rod, and the anti-rotation effect can be achieved by cooperating with the baffle plate, which is convenient for production and processing. When debris is stuck in the cylinder, only the baffle plate needs to be removed to clean the cylinder. It is simple and convenient. The setting of the two copper sleeves can increase the inclination force of the piston rod and increase the service life of the cylinder.

[0008] The rear side of the cylinder body is provided with a stepped groove, the rear cover is clamped into the stepped groove, the rear side of the cylinder body is provided with a clamping groove, a clamping ring is clamped in the clamping groove, and the clamping ring is in conflict with the rear cover.

[0009] With the above structure, during assembly, the back cover is inserted into the stepped groove, and then the snap ring is engaged with the back cover and then the snap ring is engaged with the groove. The operation is simple and convenient, and during subsequent disassembly, the snap ring can be taken out of the groove.

[0010] The piston is connected to the piston rod through a thin head screw, and a plurality of first O-rings are arranged at the contact point between the piston rod and the piston.

[0011] The above mechanism is adopted to facilitate the disassembly and installation of the piston rod and the piston, and at the same time can ensure the sealing of the connection between the piston and the piston rod.

[0012] The outer periphery of the piston is clamped with a magnetic ring and a guide ring, both of which are in contact with the cylinder body, and the outer periphery of the piston is also provided with a second O-ring.

[0013] With the above structure, the magnetic ring and the guide ring can be used to support and guide the piston, thereby ensuring the stability of the piston movement, and cooperate with the second O-ring to improve the sealing between the piston and the cylinder body.

[0014] A third O-ring is arranged between the outer periphery of the front cover and the cylinder body.

[0015] By adopting the above structure, the sealing performance of the connection between the front cover and the cylinder body can be ensured.

[0016] A sealing ring is arranged between the piston rod and the front cover.

[0017] By adopting the above structure, the sealing between the front cover and the piston rod can be ensured.

[0018] Compared with the prior art, the anti-rotation cylinder has the following advantages:

[0019] 1. During assembly, insert the rear cover into the rear end of the cylinder body, connect the piston and the piston rod, pass the piston rod through the front cover, and finally connect the front cover and the cylinder body through the first bolt. The assembly is simple and convenient, and only a milling groove needs to be opened on the piston rod, and the anti-rotation effect can be achieved with the baffle, which is convenient for production and processing. When debris is stuck in the cylinder, only the baffle needs to be removed to clean the cylinder. It is simple and convenient. The setting of the two copper sleeves can increase the inclination force of the piston rod and increase the service life of the cylinder.

[0020] 2. The structural setting of the snap ring: during assembly, insert the back cover into the stepped groove, then after the snap ring contacts the back cover, snap the snap ring into the slot. The operation is simple and convenient. During subsequent disassembly, just take the snap ring out of the slot.

[0021] 3. The structural setting of the piston rod and the piston facilitates the disassembly and installation of the piston rod and the piston, while ensuring the sealing of the connection between the piston and the piston rod.

[0022] 4. The structural arrangement of the guide ring, the magnet and the first O-ring can utilize the magnetic ring and the guide ring to support and guide the piston, thereby ensuring the stability of the piston movement, and cooperate with the second O-ring to improve the sealing between the piston and the cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a first three-dimensional structural schematic diagram of the utility model.

[0024] Figure 2 It is a second three-dimensional structural schematic diagram of the utility model.

[0025] Figure 3 It is a front view of the utility model.

[0026] Figure 4 yes Figure 3 Side cross-sectional view of .

[0027] Figure 5 It is a left view of the utility model.

[0028] Figure 6 yes Figure 5 Side cross-sectional view of .

[0029] Figure 7 yes Figure 6 A partial enlarged view of point A in the middle.

[0030] Figure 8 It is a top view of the utility model.

[0031] Fig. 9 It is a structural schematic diagram of the cooperation between the copper sleeve and the piston rod in the utility model.

[0032] Fig.10 It is a structural schematic diagram of the copper sleeve in the utility model.

[0033] Fig.11 It is a structural schematic diagram of the piston rod in the utility model.

[0034] Fig.12 It is a structural schematic diagram of the front cover in the utility model.

[0035] Fig.13 It is a structural schematic diagram of a cylinder body in the utility model.

[0036] Fig.14 It is a structural schematic diagram of the clamping ring in the utility model.

[0037] In the figure, 1, cylinder body; 2, front cover; 3, piston rod; 4, retaining groove; 5, baffle; 6, second bolt; 7, exhaust port; 8, air inlet; 9, first bolt; 10, copper sleeve; 11, thin head bolt; 12, piston; 13, rear cover; 14, third O-ring; 15, magnetic ring; 16, guide ring; 17, retaining ring; 18, retaining groove. DETAILED DESCRIPTION

[0038] 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.

[0039] like Figure 1-Figure 14 As shown, the anti-rotation cylinder comprises a cylinder body 1, a rear cover 13, a front cover 2 and a piston rod 3. The cylinder body 1 is provided with an air inlet 8 and an air exhaust port 7. The rear cover 13 is arranged at the rear end of the cylinder body 1. The front cover 2 is connected to the cylinder body 1 by a first bolt 9. The piston rod 3 passes through the front cover 2 and extends into the cylinder body 1 and is connected with a piston 12. Two copper sleeves 10 are arranged between the piston rod 3 and the front cover 2. The copper sleeves 10 are clamped in the interior of the front cover 2 and sleeved on the outer periphery of the piston rod 3. A retaining groove 4 is provided on the outside of the front cover 2. A milling groove is provided on the piston rod 3. The retaining groove 4 is connected with a baffle 5 by a second bolt 6, and the baffle 5 is in conflict with the milling groove.

[0040] During assembly, the rear cover 13 is inserted into the rear end of the cylinder body 1, the piston 12 is connected to the piston rod 3, and then the piston rod 3 passes through the front cover 2. Finally, the front cover 2 and the cylinder body 1 are connected by the first bolt 9. The assembly is simple and convenient, and only a milling groove needs to be opened on the piston rod 3, and the anti-rotation effect can be achieved by cooperating with the baffle 5, which is convenient for production and processing. When debris is stuck in the cylinder, only the baffle 5 needs to be removed to clean the cylinder. It is simple and convenient. The setting of the two copper sleeves 10 can increase the inclination force of the piston rod 3 and increase the service life of the cylinder.

[0041] The rear side of the cylinder body 1 is provided with a stepped groove, and the rear cover 13 is inserted into the stepped groove. The rear side of the cylinder body 1 is provided with a clamping groove 18 , and a clamping ring 17 is clamped in the clamping groove 18 , and the clamping ring 17 is in conflict with the rear cover 13 .

[0042] With the above structure, during assembly, the rear cover 13 is snapped into the stepped groove, and then the snap ring 17 is snapped into the slot 18 after the snap ring 17 contacts the rear cover 13. The operation is simple and convenient. During subsequent disassembly, the snap ring 17 can be taken out of the slot 18.

[0043] The piston 12 is connected to the piston rod 3 via a thin-head screw, and a plurality of first O-rings are provided at the contact point between the piston rod 3 and the piston 12 .

[0044] The above mechanism is adopted to facilitate the disassembly and installation of the piston rod 3 and the piston 12 , and at the same time, the sealing performance of the connection between the piston 12 and the piston rod 3 can be ensured.

[0045] The outer periphery of the piston 12 is clamped with a magnetic ring 15 and a guide ring 16 , both of which are in contact with the cylinder body 1 , and a second O-ring is also arranged on the outer periphery of the piston 12 .

[0046] With the above structure, the magnetic ring 15 and the guide ring 16 can be used to support and guide the piston 12 to ensure the stability of the movement of the piston 12, and cooperate with the second O-ring to improve the sealing between the piston 12 and the cylinder body 1.

[0047] A third O-ring 14 is disposed between the outer periphery of the front cover 2 and the cylinder body 1 .

[0048] By adopting the above structure, the sealing performance of the connection between the front cover 2 and the cylinder body 1 can be ensured.

[0049] A sealing ring is provided between the piston rod 3 and the front cover 2 .

[0050] By adopting the above structure, the sealing between the front cover 2 and the piston rod 3 can be ensured.

[0051] The working principle of the utility model is as follows: during assembly, the rear cover 13 is inserted into the rear end of the cylinder body 1, and then after the retaining ring 17 contacts the rear cover 13, the retaining ring 17 is engaged with the retaining groove 18, the piston 12 is connected with the piston rod 3 by means of thin-head bolts 11, the two copper sleeves 10 are engaged with the inner circumference of the front cover 2, and then the piston rod 3 passes through the front cover 2, the baffle 5 is connected with the retaining groove 4 by means of the second bolt 6, and finally the front cover 2 is connected with the cylinder body 1 by means of the first bolt 9. The assembly is simple and convenient, and only a milling groove needs to be opened on the piston rod 3, and the anti-rotation effect can be achieved by cooperating with the baffle 5, which is convenient for production and processing. When debris is stuck in the cylinder, only the baffle 5 needs to be removed to clean the cylinder, which is simple and convenient. The setting of the two copper sleeves 10 can increase the inclination force of the piston rod 3 and improve the service life of the cylinder.

[0052] In summary, by arranging structures such as the milling groove, the baffle plate 5, and the baffle groove 4, the anti-rotation function is achieved while facilitating maintenance and cleaning.

[0053] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An anti-rotation cylinder, comprising a cylinder body (1), a rear cover (13), a front cover (2) and a piston rod (3), wherein the cylinder body (1) is provided with an air inlet (8) and an air exhaust port (7), characterized in that: The rear cover (13) is arranged at the rear end of the cylinder body (1); the front cover (2) is connected to the cylinder body (1) by a first bolt (9); the piston rod (3) passes through the front cover (2) and extends into the cylinder body (1) and is connected to the piston (12); two copper sleeves (10) are arranged between the piston rod (3) and the front cover (2); the copper sleeves (10) are clamped in the interior of the front cover (2) and sleeved on the outer periphery of the piston rod (3); a retaining groove (4) is provided on the outside of the front cover (2); a milling groove is provided on the piston rod (3); a retaining plate (5) is connected to the retaining groove (4) by a second bolt (6); and the retaining plate (5) is in contact with the milling groove.

2. The anti-rotation cylinder according to claim 1, characterized in that: The rear side of the cylinder body (1) is provided with a stepped groove, the rear cover (13) is locked in the stepped groove, the rear side of the cylinder body (1) is provided with a clamping groove (18), a clamping ring (17) is clamped in the clamping groove (18), and the clamping ring (17) is in conflict with the rear cover (13).

3. The anti-rotation cylinder according to claim 1, characterized in that: The piston (12) is connected to the piston rod (3) via a thin-head screw, and a plurality of first O-rings are provided at the contact point between the piston rod (3) and the piston (12).

4. The anti-rotation cylinder according to claim 1, characterized in that: The outer periphery of the piston (12) is clamped with a magnetic ring (15) and a guide ring (16), and both the magnetic ring (15) and the guide ring (16) are in contact with the cylinder body (1). A second O-ring is also arranged on the outer periphery of the piston (12).

5. The anti-rotation cylinder according to claim 1, characterized in that: A third O-ring (14) is provided between the outer periphery of the front cover (2) and the cylinder body (1).

6. The anti-rotation cylinder according to claim 1, characterized in that: A sealing ring is provided between the piston rod (3) and the front cover (2).

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