Clamping device for shaft sleeve machining

Abstract

The utility model relates to the technical field of shaft sleeve machining, and discloses a clamping device for shaft sleeve machining, which comprises a first circular plate, a guide rail, a first sliding block, a first moving block, a first clamping block, a second sliding block, a second moving block and a second clamping block. During use, after a shaft sleeve is placed on the top face of the first circular plate, under the guiding and supporting effects of the multiple guide rails and the multiple first sliding blocks, the multiple first moving blocks are driven to move in the radial direction of the first circular plate, and then the multiple first clamping blocks abut against the inner wall of the shaft sleeve. Under the guiding and supporting effects of a plurality of guide rails and a plurality of second sliding blocks, a plurality of second moving blocks are driven to move in the radial direction of a first circular plate, and then a plurality of second clamping blocks abut against the outer wall of the shaft sleeve. Therefore, the number of the first clamping blocks and the number of the second clamping blocks are both larger than or equal to three, the shaft sleeve can be clamped and fixed in more directions, and the clamping and fixing effect of the shaft sleeve is improved.

Description

Technical Field

[0001] This application relates to the field of bushing machining technology, and in particular to a clamping device for bushing machining. Background Technology

[0002] A related technology (publication number: CN221735494U) discloses a bushing machining locking device, including a base and a locking mechanism. Two L-shaped fixing plates are fixedly mounted on the top of the base. Hydraulic rods are fixedly mounted on both L-shaped fixing plates. The moving ends of the two hydraulic rods are relatively distributed and each is equipped with a locking block. Clamping elements are engaged on each locking block. The locking mechanism is disposed on the base and includes two positioning rods that can move in opposite directions. Both positioning rods abut against the inner wall of the bushing to lock the bushing.

[0003] In the process of implementing the technical solution disclosed herein, at least the following problems were found in the related technologies:

[0004] This bushing machining locking device uses two clamping members that move in opposite directions or towards each other, driven by two hydraulic rods, to clamp and fix the outer wall of the bushing. Furthermore, the locking mechanism design allows for internal support and positioning within the bushing, further improving the locking effect. However, it can only clamp and fix the inner and outer walls of the bushing in two directions, resulting in a relatively poor clamping and fixing effect. Moreover, because it is difficult to control the synchronous movement of the two hydraulic rods, it is difficult to achieve synchronous movement of the two clamping members, making it impossible to repeatedly clamp and fix the bushing in a specific position.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] To provide a basic understanding of some aspects of the disclosed technical solutions, a brief summary is given below. This summary is not a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these technical solutions, but rather serves as a prelude to the detailed explanations that follow.

[0007] This disclosure provides a clamping device for machining bushings to solve the technical problems mentioned in the background section.

[0008] In some technical solutions, the clamping device for bushing machining includes: a first circular plate, including strip-shaped holes opened along its radial direction, the strip-shaped holes being evenly distributed around the center of the first circular plate, and the number of strip-shaped holes being greater than or equal to three; guide rails, installed on the bottom surface of the first circular plate along the radial direction of the first circular plate, and respectively adjacent to the plurality of strip-shaped holes; first sliders, respectively slidably installed on the plurality of guide rails; first moving blocks, respectively installed on the plurality of first sliders; first clamping blocks, respectively installed on the top surface of the plurality of first moving blocks, and respectively passing through the plurality of strip-shaped holes; second sliders, respectively slidably installed on the plurality of guide rails, the plurality of second sliders being located outside the plurality of first sliders; second moving blocks, respectively installed on the plurality of second sliders; second clamping blocks, respectively installed on the top surface of the plurality of second moving blocks, and respectively passing through the plurality of strip-shaped holes; wherein the plurality of first moving blocks and the plurality of second moving blocks are controlled to move separately, so that the plurality of first moving blocks and the plurality of second moving blocks approach or disperse from each other.

[0009] Optionally, it further includes: a hollow shaft rotatably passing through the center of the first circular plate; a second circular plate installed on the outer wall of the hollow shaft and located below the first circular plate; and a first connecting rod rotatably installed between the second circular plate and each of the first moving blocks; wherein any of the first moving blocks can be controlled to move so that the plurality of first moving blocks approach or disperse from each other.

[0010] Optionally, it further includes: a first support, mounted on the bottom surface of the first circular plate; a first hydraulic cylinder, mounted on the first support along the radial direction of the first circular plate; and a first connector, mounted between the moving end of the first hydraulic cylinder and any of the first moving blocks.

[0011] Optionally, it further includes: a bearing housing, installed at the center of the first circular plate and sleeved on the hollow shaft; and a first bearing, installed between the bearing housing and the hollow shaft.

[0012] Optionally, it further includes: a rotating shaft rotatably passing through the hollow shaft; a third circular plate mounted at the bottom end of the rotating shaft; and a second connecting rod rotatably mounted between the third circular plate and each of the second moving blocks; wherein any of the second moving blocks can be controlled to move so that the plurality of second moving blocks approach or disperse from each other.

[0013] Optionally, it further includes: a second support, mounted on the bottom surface of the second circular plate; a second hydraulic cylinder, mounted on the second support along the radial direction of the second circular plate; and a second connector, mounted between the moving end of the second hydraulic cylinder and any of the second moving blocks.

[0014] Optionally, it further includes a second bearing, installed between the hollow shaft and the rotating shaft.

[0015] Optionally, it also includes: support rods, which are evenly installed at the bottom edge of the first circular plate.

[0016] Optionally, it further includes: a limiting block, installed on the bottom surface of the first circular plate and located at the end of each of the guide rails.

[0017] The present disclosure provides a clamping device for machining bushings, which can achieve the following technical effects:

[0018] This disclosure provides a clamping device for machining bushings, comprising a first circular plate, guide rails, a first slider, a first movable block, a first clamping block, a second slider, a second movable block, and a second clamping block. The first circular plate includes radially spaced slotted holes evenly distributed around its center, with three or more slotted holes. Each slotted hole is used for passage of the first clamping block and the second clamping block. Guide rails are mounted on the bottom surface of the first circular plate along its radial direction and are adjacent to the slotted holes, supporting the slidable first and second sliders. The first sliders are slidably mounted on the guide rails, providing guidance and support. First movable blocks are mounted on the first sliders, allowing them to move radially along the first circular plate under the guidance and support of the guide rails and first sliders. First clamping blocks are mounted on the top surfaces of the first movable blocks and pass through the slotted holes, abutting against the inner wall of the bushing. The second sliders are slidably mounted on multiple guide rails, serving as guides and supports together. These second sliders are located outside the first sliders, so that the second moving blocks are also located outside the first moving blocks. The second moving blocks are mounted on the second sliders, and under the guidance and support of the guide rails and the second sliders, they can move radially along the first circular plate. Second clamping blocks are mounted on the top surfaces of the second moving blocks and pass through multiple slotted holes, all designed to abut against the outer wall of the bushing. The first and second moving blocks are controlled to move independently, either close together or dispersed.

[0019] In use, after the bushing is placed on the top surface of the first circular plate, under the guidance and support of multiple guide rails and multiple first sliders, multiple first moving blocks are driven to move radially along the first circular plate, thereby causing multiple first clamping blocks to abut against the inner wall of the bushing. Under the guidance and support of multiple guide rails and multiple second sliders, multiple second moving blocks are driven to move radially along the first circular plate, thereby causing multiple second clamping blocks to abut against the outer wall of the bushing. This clamps and fixes the bushing from both the inner and outer sides, improving the clamping and fixing effect of the bushing. Furthermore, since the number of strip holes is greater than or equal to three, the number of multiple first clamping blocks and multiple second clamping blocks is also greater than or equal to three, thus allowing the bushing to be clamped and fixed from more directions, further improving the clamping and fixing effect of the bushing.

[0020] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0022] Figure 1 This is a cross-sectional view of a clamping device for machining bushings provided in an embodiment of this disclosure;

[0023] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 This is a front view structural schematic diagram of a clamping device for bushing machining provided in an embodiment of this disclosure;

[0025] Figure 4 This is a top view of a clamping device for machining bushings according to an embodiment of the present disclosure;

[0026] Figure 5 This is a bottom view of a clamping device for machining bushings provided in an embodiment of this disclosure.

[0027] Figure label:

[0028] 1: First circular plate; 2: Guide rail; 3: First slider; 4: First moving block; 5: First clamping block; 6: Second slider; 7: Second moving block; 8: Second clamping block; 9: Hollow shaft; 10: Second circular plate; 11: First connecting rod; 12: First support; 13: First hydraulic cylinder; 14: First joint; 15: Bearing seat; 16: First bearing; 17: Rotating shaft; 18: Third circular plate; 19: Second connecting rod; 20: Second support; 21: Second hydraulic cylinder; 22: Second joint; 23: Second bearing. Detailed Implementation

[0029] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0030] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better describing the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this disclosure according to the specific circumstances.

[0032] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0033] Unless otherwise stated, the term "multiple" means two or more.

[0034] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0035] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0037] Combination Figures 1 to 5As shown, this embodiment of the present disclosure provides a clamping device for bushing machining, including a first circular plate 1, guide rails 2, first sliders 3, first moving blocks 4, first clamping blocks 5, second sliders 6, second moving blocks 7, and second clamping blocks 8. The first circular plate 1 includes strip-shaped holes opened along its radial direction, evenly distributed around the center of the first circular plate 1, with three or more strip-shaped holes. Each strip-shaped hole is used for the passage of the first clamping blocks 5 and the second clamping blocks 8. The guide rails 2 are installed on the bottom surface of the first circular plate 1 along its radial direction and are adjacent to the multiple strip-shaped holes, each used to support the slidable first sliders 3 and second sliders 6. The first sliders 3 are slidably installed on the multiple guide rails 2, and together with the multiple guide rails 2, they serve as guides and supports. The first moving blocks 4 are respectively installed on the multiple first sliders 3, and under the guiding and supporting action of the multiple guide rails 2 and the multiple first sliders 3, the multiple first moving blocks 4 can move along the radial direction of the first circular plate 1. First clamping blocks 5 are respectively installed on the top surfaces of multiple first movable blocks 4 and pass through multiple strip holes, all for abutting against the inner wall of the bushing. Second sliders 6 are slidably installed on multiple guide rails 2, serving as guides and supports together with the guide rails 2. Multiple second sliders 6 are located outside multiple first sliders 3, so that multiple second movable blocks 7 are located outside multiple first movable blocks 4. Second movable blocks 7 are respectively installed on multiple second sliders 6, and under the guidance and support of multiple guide rails 2 and multiple second sliders 6, multiple second movable blocks 7 can move radially along the first circular plate 1. Second clamping blocks 8 are respectively installed on the top surfaces of multiple second movable blocks 7 and pass through multiple strip holes, all for abutting against the outer wall of the bushing. The multiple first movable blocks 4 and multiple second movable blocks 7 are controlled to move separately, so that the multiple first movable blocks 4 and multiple second movable blocks 7 move closer together or disperse.

[0038] This disclosure provides a clamping device for machining bushings. After the bushing is placed on the top surface of a first circular plate 1, multiple first moving blocks 4 are driven to move radially along the first circular plate 1 under the guidance and support of multiple guide rails 2 and multiple first sliders 3, thereby causing multiple first clamping blocks 5 to abut against the inner wall of the bushing. Under the guidance and support of multiple guide rails 2 and multiple second sliders 6, multiple second moving blocks 7 are driven to move radially along the first circular plate 1, thereby causing multiple second clamping blocks 8 to abut against the outer wall of the bushing. This clamps and fixes the bushing from both the inner and outer sides, improving the clamping and fixing effect of the bushing. Furthermore, since the number of strip holes is greater than or equal to three, the number of multiple first clamping blocks 5 and multiple second clamping blocks 8 is also greater than or equal to three, thus allowing the bushing to be clamped and fixed from more directions, further improving the clamping and fixing effect of the bushing.

[0039] Optionally, combined Figure 1 and Figure 2As shown, it also includes a hollow shaft 9, a second circular plate 10, and a first connecting rod 11. The hollow shaft 9 is rotatably inserted through the center of the first circular plate 1 and can rotate relative to the first circular plate 1. The second circular plate 10 is mounted on the outer wall of the hollow shaft 9 and located below the first circular plate 1, and can rotate under the support of the hollow shaft 9. The first connecting rod 11 is rotatably mounted between the second circular plate 10 and each of the first moving blocks 4, respectively, and is used to transmit driving force. Any one of the first moving blocks 4 can be controlled to move, so that the multiple first moving blocks 4 move closer together or further apart.

[0040] In this embodiment, after any first moving block 4 is controlled to move, the first connecting rod 11 connected to it can drive the second circular plate 10 to rotate. Then, under the pulling or pushing of the other first connecting rods 11, the remaining first moving blocks 4 can move accordingly. Therefore, through the design of the hollow shaft 9, the second circular plate 10 and the first connecting rod 11, the function of multiple first clamping blocks 5 synchronously approaching or dispersing each other is realized, which can repeatedly clamp and fix the bushing in a specific position.

[0041] Optionally, combined Figure 1 and Figure 5 As shown, it also includes a first support 12, a first hydraulic cylinder 13, and a first connector 14. The first support 12 is mounted on the bottom surface of the first circular plate 1 to support and mount the first hydraulic cylinder 13. The first hydraulic cylinder 13 is mounted on the first support 12 along the radial direction of the first circular plate 1 to provide driving force for linear movement. The first connector 14 is mounted between the moving end of the first hydraulic cylinder 13 and any of the first moving blocks 4 as a connecting member to achieve synchronous movement.

[0042] In this embodiment, controlling the first hydraulic cylinder 13 to operate, via the first connector 14, drives the connected first moving block 4 to move, ultimately achieving the function of multiple first clamping blocks 5 synchronously approaching or dispersing. Furthermore, using the first hydraulic cylinder 13 as the power source has the advantage of stable operation and can provide sufficient clamping force.

[0043] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a bearing housing 15 and a first bearing 16. The bearing housing 15 is installed at the center of the first circular plate 1 and is sleeved on the hollow shaft 9. The first bearing 16 is installed between the bearing housing 15 and the hollow shaft 9.

[0044] In this embodiment, the bearing housing 15 is used to support and mount the first bearing 16 and to limit the position of the first bearing 16. The first bearing 16 is used to support and mount the rotatable hollow shaft 9, reducing the frictional force on the hollow shaft 9 and improving the rotational accuracy of the hollow shaft 9.

[0045] Optionally, combined Figure 1 , Figure 3and Figure 5 As shown, it also includes a rotating shaft 17, a third circular plate 18, and a second connecting rod 19. The rotating shaft 17 is rotatably mounted through the hollow shaft 9 and can rotate relative to the hollow shaft 9. The third circular plate 18 is mounted at the bottom end of the rotating shaft 17 and can rotate under the support of the rotating shaft 17. The second connecting rod 19 is rotatably mounted between the third circular plate 18 and each of the second moving blocks 7, and is used to transmit driving force. Any one of the second moving blocks 7 can be moved in a controlled manner to bring the multiple second moving blocks 7 closer together or further apart.

[0046] In this embodiment, after any second moving block 7 is controlled to move, the second connecting rod 19 connected to it can drive the third circular plate 18 to rotate. Then, under the pulling or pushing of the remaining second connecting rods 19, the remaining second moving blocks 7 can move accordingly. Therefore, through the design of the rotating shaft 17, the third circular plate 18, and the second connecting rod 19, the function of multiple second clamping blocks 8 synchronously approaching or dispersing each other is realized, which can repeatedly clamp and fix the bushing in a specific position.

[0047] Optionally, combined Figure 3 and Figure 5 As shown, it also includes a second support 20, a second hydraulic cylinder 21, and a second connector 22. The second support 20 is mounted on the bottom surface of the second circular plate 10 to support the second hydraulic cylinder 21. The second hydraulic cylinder 21 is mounted on the second support 20 along the radial direction of the second circular plate 10 to provide driving force for linear movement. The second connector 22 is installed between the moving end of the second hydraulic cylinder 21 and any of the second moving blocks 7 as a connecting member to achieve synchronous movement.

[0048] In this embodiment, controlling the second hydraulic cylinder 21 to operate, via the second connector 22, drives the connected second moving block 7 to move, ultimately achieving the function of multiple second clamping blocks 8 synchronously approaching or dispersing. Furthermore, using the second hydraulic cylinder 21 as a power source has the advantage of stable operation and can provide sufficient clamping force.

[0049] Optionally, combined Figure 1 and Figure 2 As shown, it also includes a second bearing 23. The second bearing 23 is installed between the hollow shaft 9 and the rotating shaft 17.

[0050] In this embodiment of the disclosure, the second bearing 23 is used to reduce the friction between the hollow shaft 9 and the rotating shaft 17, and to improve the accuracy of the rotating shaft 17 when rotating relative to the hollow shaft 9.

[0051] Optionally, combined Figure 1 , Figure 3 and Figure 5 As shown, it also includes support rods. The support rods are evenly installed at the bottom edge of the first circular plate 1.

[0052] In this embodiment of the disclosure, multiple support rods are used to abut against the ground or tabletop, or to connect to other equipment, thereby supporting the entire device.

[0053] Optionally, combined Figure 1 and Figure 3 As shown, it also includes limiting blocks. The limiting blocks are installed on the bottom surface of the first circular plate 1 and are located at the ends of each guide rail 2.

[0054] In this embodiment, multiple limiting blocks are used to limit movement and prevent multiple first sliders 3 and multiple second sliders 6 from falling off multiple guide rails 2.

[0055] The foregoing description and accompanying drawings have fully illustrated embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of this disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A clamping device for machining a bushing, characterized by include: The first circular plate includes strip-shaped holes opened in its radial direction, the strip-shaped holes being evenly distributed around the center of the first circular plate, and the number of the strip-shaped holes being greater than or equal to three; The guide rail is mounted on the bottom surface of the first circular plate along the radial direction of the first circular plate and is adjacent to the plurality of the strip holes respectively; The first slider is slidably mounted on each of the multiple guide rails; The first movable block is respectively installed on multiple first sliders; The first clamping blocks are respectively installed on the top surface of the plurality of first movable blocks and respectively pass through the plurality of strip holes; The second slider is slidably mounted on the plurality of guide rails, and the plurality of second sliders are located outside the plurality of first sliders; The second movable block is respectively installed on multiple second sliders; The second clamping blocks are respectively installed on the top surface of the plurality of second movable blocks and respectively pass through the plurality of strip holes; In this process, multiple first moving blocks and multiple second moving blocks are controlled to move separately, so that the multiple first moving blocks and multiple second moving blocks move closer to each other or disperse.

2. The chucking device for machining a bushing according to claim 1, characterized in that Also includes: A hollow shaft is rotatably inserted through the center of the first circular plate; The second circular plate is installed on the outer wall of the hollow shaft and is located below the first circular plate; The first link is rotatably mounted between the second circular plate and each of the first moving blocks; In this embodiment, any one of the first moving blocks can be moved in a controlled manner to bring the plurality of first moving blocks closer to or further apart from each other.

3. The chucking device for machining a bushing according to claim 2, characterized in that Also includes: The first support is installed on the bottom surface of the first circular plate; The first hydraulic cylinder is mounted on the first support along the radial direction of the first circular plate; The first connector is installed between the moving end of the first hydraulic cylinder and any of the first moving blocks.

4. The chucking device for machining a bushing according to claim 2, characterized in that Also includes: The bearing housing is installed at the center of the first circular plate and is sleeved on the hollow shaft; The first bearing is installed between the bearing housing and the hollow shaft.

5. The chucking device for machining a bushing according to claim 2, characterized in that Also includes: A rotating shaft, rotatably passing through the hollow shaft; The third circular plate is installed at the bottom end of the rotating shaft; The second link is rotatably mounted between the third circular plate and each of the second moving blocks; In this embodiment, any one of the second moving blocks can be moved in a controlled manner to bring the plurality of second moving blocks closer to or further apart from each other.

6. The chucking device for machining a bushing according to claim 5, characterized in that Also includes: The second support is installed on the bottom surface of the second circular plate; The second hydraulic cylinder is mounted on the second support along the radial direction of the second circular plate; The second connector is installed between the moving end of the second hydraulic cylinder and any of the second moving blocks.

7. The chucking device for machining a bushing according to claim 5, characterized in that Also includes: The second bearing is installed between the hollow shaft and the rotating shaft.

8. A clamping device for machining bushings according to any one of claims 1 to 7, characterized in that, Also includes: Support rods are evenly installed at the bottom edge of the first circular plate.

9. The chucking device for machining of bushings according to any of claims 1 to 7, characterized in that, Also includes: The limiting blocks are installed on the bottom surface of the first circular plate and are located at the ends of each of the guide rails.

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