Automatic adjusting structure of rodless cylinder

Abstract

The utility model discloses a rodless cylinder automatic adjusting structure which comprises a pushing piece connected with a rodless cylinder sliding table and a connecting piece connected with a driven piece, a groove is formed in the connecting piece, the pushing piece is inserted into the groove, and a gap is reserved between the pushing piece and the groove. The pushing part can move in the first movement direction, the second movement direction and the third movement direction relative to the groove, the first movement direction, the second movement direction and the third movement direction are perpendicular to one another, the first movement direction is the movement direction of the rodless air cylinder sliding table, and the second movement direction is the center line direction of the groove. The gap is reserved between the pushing piece and the groove, so that the pushing piece can move in the first movement direction, the second movement direction and the third movement direction relative to the groove of the connecting piece, automatic adjustment and compensation are achieved when deviation occurs in double-air-cylinder driving, and the situation that the air cylinders are stuck due to the fact that the eccentricity of the two air cylinders is too large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic components, in particular to an automatic adjustment structure for a rodless cylinder. Background Art

[0002] As a pneumatic actuator, the cylinder has the characteristics of easy installation and maintenance, large output force, strong adaptability, etc., so it is widely used in the field of automatic control. Among them, the rodless cylinder has the advantage of saving installation space and is more applied to scenarios with high space requirements. In practical applications, when driving large-sized parts, at least two cylinders are often used for driving to ensure the stable movement of the parts without deflection. However, due to the machining and assembly errors of the cylinders and the differences in gas pressure, it is difficult to ensure consistent synchronous movement between the cylinders; especially when the distance between the two cylinders is relatively large, a small deviation will cause a large eccentricity between the two cylinders, resulting in cylinder jamming. Summary of the Utility Model

[0003] The utility model provides an automatic adjustment structure for a rodless cylinder to solve the above technical problems.

[0004] To achieve the above object, the technical solution of the utility model is:

[0005] An automatic adjustment structure for a rodless cylinder includes a pusher connected to the slide of the rodless cylinder and a connector connected to the driven part. A groove is formed in the connector, and the pusher is inserted into the groove with a gap left between the pusher and the groove. The pusher can move relative to the groove along a first movement direction, a second movement direction, and a third movement direction, and the first movement direction, the second movement direction, and the third movement direction are perpendicular to each other. The first movement direction is along the movement direction of the slide of the rodless cylinder, and the second movement direction is along the center line direction of the groove.

[0006] Preferably, the groove penetrates through the connector, and a pressing plate is connected after the pusher passes through the groove. The size of the pressing plate along the first movement direction or the third movement direction is larger than the size of the groove in the corresponding direction.

[0007] Preferably, the groove is a rectangular through-groove, the pusher is a rectangular plate, there is a gap between the pusher and the groove along the first movement direction, there is a gap between the pusher and the groove along the third movement direction, and there is a gap between the pressing plate and the connector along the second movement direction.

[0008] Preferably, along the third movement direction: the distances between the two side surfaces of the pusher and the opposite side walls of the groove are 2-3 mm respectively.

[0009] Preferably, the rodless cylinder slide is horizontally arranged, the connecting member is plate-shaped, the connecting member is located above the rodless cylinder slide, and the center line of the groove is arranged vertically; on one side of the connecting member along the third movement direction, a transfer plate is fixedly connected, the transfer plate is perpendicular to the third movement direction and is located on the side of the rodless cylinder, and the transfer plate is connected to the driven member.

[0010] Preferably, a linear guide rail assembly is connected below the connecting member, and the linear guide rail assembly is located between the transfer plate and the rodless cylinder.

[0011] Beneficial effects:

[0012] In the automatic adjustment structure of the rodless cylinder disclosed in the present application, a gap is left between the pushing member and the groove, so that the pushing member can move relative to the groove of the connecting member along the first movement direction, the second movement direction and the third movement direction, realizing automatic adjustment and compensation when there is a deviation in the double-cylinder drive, and avoiding the cylinder from being stuck due to excessive eccentricity of the two cylinders. Description of the drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of an automatic adjustment structure of a rodless cylinder disclosed in the present invention;

[0015] Figure 2 is Figure 1 a partial enlarged view of I in;

[0016] Figure 3 It is a front view of an automatic adjustment structure of a rodless cylinder disclosed in the present invention;

[0017] Figure 4 It is a top view of an automatic adjustment structure of a rodless cylinder disclosed in the present invention.

[0018] 41. Pushing member; 42. Connecting member; 43. Groove; 44. Pressing plate; 45. Transfer plate; 46. Linear guide rail assembly; 47. Guide rail bracket. Detailed implementation manners

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] An automatic adjustment structure for a rodless cylinder, in combination with Figure 1 , Figure 2 , Figure 3 and Figure 4 as shown, includes: a pusher 41 connected to the rodless cylinder slide and a connecting member 42 connected to the driven member. A groove 43 is formed in the connecting member 42, and the pusher 41 is inserted into the groove 43 with a gap left between the pusher 41 and the groove 43. The pusher 41 can move relative to the groove 43 in a first movement direction, a second movement direction, and a third movement direction, and the first movement direction, the second movement direction, and the third movement direction are perpendicular to each other. The first movement direction is along the movement direction of the rodless cylinder slide, and the second movement direction is along the center line direction of the groove 43. By leaving a gap between the pusher 41 and the groove 43, the pusher 41 can move relative to the groove 43 in the first movement direction, the second movement direction, and the third movement direction; when the double rodless cylinders push the driven member to cause deviation, the pusher 41 moves relative to the groove 43 in the first movement direction and the third movement direction to achieve automatic adjustment and compensation, avoiding the driven member from twisting and thus causing the double rodless cylinders to be overly eccentric and resulting in cylinder jamming. At the same time, the movement of the pusher 41 relative to the groove 43 in the first movement direction can compensate for the machining errors and installation errors of the two rodless cylinders in the first movement direction, that is, the two rodless cylinders cannot be completely aligned in the first movement direction; the movement of the pusher 41 relative to the groove 43 in the third movement direction can compensate for the machining errors and installation errors of the two rodless cylinders in the third movement direction, that is, the two rodless cylinders cannot be completely parallel; the movement of the pusher 41 relative to the groove 43 in the second movement direction can compensate for the machining errors and installation errors of the two rodless cylinders in the second movement direction, that is, the two rodless cylinders cannot be completely in a horizontal plane, avoiding cylinder jamming.

[0021] Preferably, the groove 43 penetrates through the connecting member 42, and a pressing plate 44 is connected after the pusher 41 passes through the groove 43. The size of the pressing plate 44 in the first movement direction or the third movement direction is larger than the size of the groove 43 in the corresponding direction. The pressing plate 44 can prevent the pusher 41 from disengaging from the groove 43 and ensure the reliable connection between the pusher 41 and the connecting member.

[0022] Preferably, the groove 43 is a rectangular through-groove, and the pushing member 41 is a rectangular plate. The contact surface between the pushing member 41 and the groove 43 is large, which can evenly transmit the thrust force to drive the driven member; and it can reduce the size of the automatic adjustment structure in the second movement direction. There is a gap between the pushing member 41 and the groove 43 along the first movement direction, and there is a gap between the pushing member 41 and the groove 43 along the third movement direction. There is a gap between the pressing plate 44 and the connecting member 42 along the second movement direction. Ensure that the pushing member 41 can move relative to the groove 43 along the first movement direction, the second movement direction, and the third movement direction.

[0023] Preferably, along the third movement direction: the distances between the two side surfaces of the pushing member 41 and the side walls of the opposite groove 43 are 2-3 mm respectively, and the automatic adjustment range is plus or minus 2-3 mm.

[0024] Preferably, the rodless cylinder slide is horizontally arranged, the connecting member 42 is plate-shaped, the connecting member 42 is located above the rodless cylinder slide, and the center line of the groove 43 is arranged vertically to reduce the size of the automatic adjustment structure in the vertical direction. One side of the connecting member 42 along the third movement direction is fixedly connected with a transfer plate 45. The transfer plate 45 is perpendicular to the third movement direction and is located on the side of the rodless cylinder. The transfer plate 45 is connected to the driven member, and connecting on the side can further reduce the size of the automatic adjustment structure in the vertical direction.

[0025] Preferably, a linear guide rail assembly 46 is connected below the connecting member 42. The linear guide rail assembly 46 is located between the transfer plate 45 and the rodless cylinder. The linear guide rail assembly 46 can support the part of the connecting member 42 extending horizontally out of the rodless cylinder, and the linear guide rail assembly 46 guides the movement of the connecting member 42 to ensure the operation accuracy and smoothness.

[0026] Specifically, a guide rail bracket 47 is arranged below the linear guide rail assembly 46.

[0027] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic adjustment structure for a rodless cylinder, characterized in that, Comprising: A pusher (41) connected to the rodless cylinder slide and a connecting member (42) connected to the driven member. A groove (43) is formed in the connecting member (42), and the pusher (41) is inserted into the groove (43). There is a gap between the pusher (41) and the groove (43). The pusher (41) can move relative to the groove (43) in a first movement direction, a second movement direction, and a third movement direction, and the first movement direction, the second movement direction, and the third movement direction are perpendicular to each other. The first movement direction is along the movement direction of the rodless cylinder slide, and the second movement direction is along the center line direction of the groove (43).

2. The automatic adjustment structure of a rodless cylinder according to claim 1, characterized in that, The groove (43) penetrates through the connecting member (42). After the pusher (41) passes through the groove (43), a pressing plate (44) is connected. The dimension of the pressing plate (44) along the first movement direction or the third movement direction is larger than the dimension of the groove (43) in the corresponding direction.

3. The automatic adjustment structure of a rodless cylinder according to claim 2, characterized in that, The groove (43) is a rectangular through groove, the pusher (41) is a rectangular plate, there is a gap between the pusher (41) and the groove (43) along the first movement direction, there is a gap between the pusher (41) and the groove (43) along the third movement direction, and there is a gap between the pressing plate (44) and the connecting member (42) along the second movement direction.

4. The automatic adjustment structure of a rodless cylinder according to claim 3, characterized in that, Along the third movement direction: The distance between the two side surfaces of the pusher (41) and the side walls of the opposite groove (43) is 2 - 3 mm.

5. The automatic adjustment structure of a rodless cylinder according to claim 1, characterized in that, The rodless cylinder slide is horizontally arranged, the connecting member (42) is plate-shaped, the connecting member (42) is located above the rodless cylinder slide, and the center line of the groove (43) is arranged vertically; One side of the connecting member (42) along the third movement direction is fixedly connected with a transfer plate (45), the transfer plate (45) is arranged perpendicular to the third movement direction and is located on the side of the rodless cylinder, and the transfer plate (45) connects the driven member.

6. The automatic adjustment structure of a rodless cylinder according to claim 5, characterized in that, A linear guide rail assembly (46) is connected below the connecting member (42), and the linear guide rail assembly (46) is located between the transfer plate (45) and the rodless cylinder.

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