Adjustable diameter clamping fixture

Abstract

The application discloses a clamping and fixing tool with adjustable diameter, which comprises a base frame and a first adjusting part. The base frame comprises a first end face and a second end face oppositely arranged in a first direction. The first end face is recessed into a mounting groove. The mounting groove comprises a first groove face and a second groove face oppositely arranged in a second direction. The first groove face and the second groove face are both arranged obliquely relative to the first direction. The first direction intersects with the second direction. The first adjusting part is movably arranged on the first groove face. A first clamping face is arranged on an end of the first adjusting part away from the first groove face. In the application, when the first adjusting part moves towards the second end face, the distance between the first adjusting part and the second end face decreases. When the first adjusting part moves towards the first end face, the distance between the first adjusting part and the first end face increases. By adjusting the position of the first adjusting part on the first groove face, the clamping and fixing of workpieces with different diameters can be achieved, the versatility and practicability of the tool are greatly improved, and the trouble and cost of frequently replacing the tool due to different diameters of workpieces are reduced.

Description

Technical Field

[0001] This application relates to the field of tooling equipment technology, specifically to a clamping and fixing tool with an adjustable diameter. Background Technology

[0002] Wind power generation has experienced rapid development in recent years due to its advantages such as being pollution-free and having low construction costs. A wind turbine consists of components including a tower, blades, rotor, main shaft, and generator. The tower is the structural component supporting the wind turbine nacelle and rotor; the blades are the key component for capturing wind energy; when wind blows over the blades, they experience lift and drag, generating rotational torque that drives the rotor; the rotor connects the blades and the main shaft, transmitting the rotational torque generated by the blades to the main shaft while also bearing the weight of the blades and various loads; the main shaft is the core component for transmitting torque, transferring the rotational torque from the rotor to the gearbox or generator.

[0003] In the existing technology, there are many types of spindles, and the diameters of different parts of the spindle are not the same. Each spindle needs to be processed with a different clamping fixture, which results in non-universal clamping fixtures and a large variety of clamping fixtures. This not only increases production costs but also reduces production efficiency. At the same time, the large variety of clamping fixtures leads to a waste of space resources and reduces the space for placing workpieces. Utility Model Content

[0004] The purpose of this application is to provide a clamping and fixing fixture with an adjustable diameter, which solves the problems of poor versatility, insufficient clamping stability, and inconvenient adjustment of clamping and fixing fixtures.

[0005] To achieve the objectives of this application, the following technical solution is provided:

[0006] In a first aspect, this application provides a clamping and fixing fixture with an adjustable diameter, comprising:

[0007] The base frame includes a first end face and a second end face that are disposed opposite to each other in a first direction. The first end face is recessed to form a mounting groove. The mounting groove includes a first groove surface and a second groove surface that are disposed opposite to each other in a second direction. Both the first groove surface and the second groove surface are inclined relative to the first direction. The first direction intersects the second direction.

[0008] A first adjusting member is movably disposed on the first groove surface, and a first clamping surface is provided on the end of the first adjusting member away from the first groove surface;

[0009] When the first adjusting member moves from the end closer to the first end face to the end closer to the second end face, the distance between the first clamping surface and the second groove surface decreases.

[0010] When the first adjusting member moves from the end closer to the second end face to the end closer to the first end face, the distance between the first clamping surface and the second groove surface increases.

[0011] In one embodiment, a first sliding groove is provided on the first groove surface, the first sliding groove extending from one end near the first end face to one end near the second end face, and a first slider is provided on the first adjusting member, the first slider being slidably disposed in the first sliding groove.

[0012] In one embodiment, the first clamping surface and the first groove surface have an included angle, and the distance between the first clamping surface and the first groove surface gradually decreases from the end closer to the first end face to the end closer to the second end face.

[0013] In one embodiment, the device further includes a first limiting seat and a first connecting rod. The first limiting seat is fixed to the first end face, one end of the first connecting rod is connected to the first adjusting member, and the other end of the first connecting rod is movably connected to the first limiting seat.

[0014] In one embodiment, the system further includes a first nut, a first through hole on the first limiting seat, one end of the first connecting rod being fixedly connected to the first adjusting member, and the other end of the first connecting rod passing through the first through hole and being threadedly connected to the first nut.

[0015] In one embodiment, a second adjusting member is further included, which is movably disposed on the second groove surface, and a second clamping surface is provided at the end of the second adjusting member away from the second groove surface;

[0016] In the second direction, the first clamping surface and the second clamping surface are symmetrically arranged.

[0017] In one embodiment, the angle between the first clamping surface and the second clamping surface is smaller than the angle between the first groove surface and the second groove surface.

[0018] In one embodiment, a second sliding groove is provided on the second groove surface, the second sliding groove extending from one end near the first end face to one end near the second end face, and a second slider is provided on the second adjusting member, the second slider being slidably disposed in the second sliding groove.

[0019] In one embodiment, the device further includes a second limiting seat, a second connecting rod, and a second nut. The second limiting seat is fixed to the first end face and has a second through hole. One end of the second connecting rod is fixedly connected to the second adjusting member, and the other end of the second connecting rod passes through the second through hole and is threadedly connected to the second nut.

[0020] In one embodiment, the device further includes a pressure plate, a screw, and an adjusting bolt. The pressure plate is connected to the base frame via the screw. The pressure plate has a third clamping surface, which, together with the mounting groove, forms a clamping space. The adjusting bolt is disposed on the third clamping surface.

[0021] Compared with the prior art, this application has at least the following beneficial effects:

[0022] 1. In this application, by providing a mounting groove on the base frame, the mounting groove forms a space for placing the workpiece. A first adjusting member is movably disposed on the first groove surface. By adjusting the position of the first adjusting member on the first groove surface, the distance between the first clamping surface and the second groove surface can be changed. When the first adjusting member moves closer to the second end face, the distance between them decreases; when it moves closer to the first end face, the distance between them increases. This allows for the adaptation to the clamping and fixing requirements of workpieces with different diameters, greatly improving the versatility and practicality of the tooling, and reducing the trouble and cost of frequently changing tooling due to different workpiece diameters.

[0023] 2. In this application, the distance between the first clamping surface and the second groove surface can be easily adjusted simply by controlling the movement direction of the first adjusting member on the first groove surface, thereby completing the clamping and fixing operation of workpieces of different diameters. This operation method is simple and intuitive, making it easy for operators to quickly learn and use, and improving work efficiency.

[0024] 3. In this application, the base frame is designed with mounting grooves, and both the first groove surface and the second groove surface are inclined relative to the first direction. This structure provides reasonable guidance and support for the movement of the first adjusting member, ensuring the stability and reliability of the first adjusting member during the movement process, thereby ensuring the accuracy and firmness of the workpiece clamping and fixing. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a perspective view of a clamping and fixing fixture according to one embodiment of this application;

[0027] Figure 2 This is an exploded view of a clamping and fixing fixture according to one embodiment of this application;

[0028] Figure 3 This is an exploded view of a portion of the clamping and fixing fixture according to one embodiment of this application;

[0029] Figure 4 This is a perspective view of a clamping and fixing fixture according to one embodiment of this application.

[0030] Figure 5 This is a front view of a clamping and fixing fixture according to one embodiment of this application;

[0031] Figure 6 This is a perspective view of a pressure plate and adjusting bolt according to one embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100, Base frame; 110, First end face; 120, Second end face; 130, Mounting groove; 131, First groove surface; 131a, First sliding groove; 132, Second groove surface; 132a, Second sliding groove; 200, First adjusting component; 210, First clamping surface; 220, First slider; 310, First limiting seat; 311, First through hole; 320, First connecting rod; 330, First nut; 400, Second adjusting component; 410, Second clamping surface; 420, Second slider; 510, Second limiting seat; 511, Second through hole; 520, Second connecting rod; 530, Second nut; 600, Pressure plate; 610, Third clamping surface; 620, Clamping space; 700, Screw; 800, Adjusting bolt; X, First direction; Y, Second direction. Detailed Implementation

[0034] The following are specific embodiments of this application, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments.

[0035] refer to Figure 1 , Figure 2 and Figure 3 This application provides a clamping and fixing fixture with an adjustable diameter, including a base frame 100 and a first adjusting member 200.

[0036] The base frame 100 serves as the basic support structure for clamping and fixing the tooling, and includes a first end face 110 and a second end face 120 that are disposed opposite to each other in the first direction X. The first end face 110 is recessed to form a mounting groove 130, and the mounting groove 130 further includes a first groove surface 131 and a second groove surface 132 that are disposed opposite to each other in the second direction Y, and both the first groove surface 131 and the second groove surface 132 are inclined relative to the first direction X, and the first direction X intersects the second direction Y.

[0037] Optionally, the base frame 100 includes a base plate, a vertical plate, and ribs. The vertical plate stands upright in the middle of the base plate and is welded to the base plate. The ribs connect to both sides of the vertical plate. A mounting groove 130 is provided on the vertical plate and extends through both sides of the vertical plate to facilitate the placement of the workpiece. The second end face 120 is the bottom surface of the base plate. A keyway and mounting holes are provided on the second end face 120. The keyway facilitates the positioning of the base frame 100 during installation, and the mounting holes are used for connection with the machine tool worktable.

[0038] The first groove surface 131 and the second groove surface 132 can form a "V" shaped mounting groove 130.

[0039] The inclined first groove surface 131 provides guidance and support for the first adjusting member 200. The first adjusting member 200 is movably disposed on the first groove surface 131, and its end away from the first groove surface 131 is provided with a first clamping surface 210. When the first adjusting member 200 moves on the first groove surface 131 from the end near the first end face 110 to the end near the second end face 120, the distance between the first clamping surface 210 and the second groove surface 132 decreases under the action of the first groove surface 131; conversely, when the first adjusting member 200 moves from the end near the second end face 120 to the end near the first end face 110, the distance between the first clamping surface 210 and the second groove surface 132 increases under the action of the first groove surface 131. By moving the first adjusting member 200 on the first groove surface 131, workpieces of different diameters can be clamped and fixed.

[0040] In this application, by providing a mounting groove 130 on the base frame 100, the mounting groove 130 forms a space for placing the workpiece. The first adjusting member 200 is movably disposed on the first groove surface 131. By adjusting the position of the first adjusting member 200 on the first groove surface 131, the distance between the first clamping surface 210 and the second groove surface 132 can be changed. This can adapt to the clamping and fixing requirements of workpieces with different diameters, greatly improving the versatility and practicality of the tooling, and reducing the trouble and cost of frequently changing tooling due to different workpiece diameters.

[0041] Secondly, by simply controlling the movement direction of the first adjusting member 200 on the first groove surface 131, the distance between the first clamping surface 210 and the second groove surface 132 can be easily adjusted, thereby completing the clamping and fixing operation of workpieces of different diameters. This operation method is simple and intuitive, making it easy for operators to quickly learn and use, and improving work efficiency.

[0042] A first sliding groove 131a is provided on the first groove surface 131, extending from one end near the first end face 110 to one end near the second end face 120. A first slider 220 is provided on the first adjusting member 200, and the first slider 220 is slidably disposed in the first sliding groove 131a. The mounting bracket and the first groove surface 131 are connected by the first sliding groove 131a and the first slider 220, which provides precise guidance for the movement of the first adjusting member 200, ensuring the smoothness and accuracy of the movement, thereby improving the accuracy of clamping and fixing.

[0043] In one embodiment, the first clamping surface 210 and the first groove surface 131 form an angle, and the distance between the first clamping surface 210 and the first groove surface 131 gradually decreases from the end near the first end face 110 to the end near the second end face 120. That is, the angle between the first clamping surface 210 and the first direction X is smaller than the angle between the first groove surface 131 and the first direction X. When the workpiece is placed on the first clamping surface 210, the force on the first adjusting member 200 under the gravity of the workpiece is upward, so that the first adjusting member 200 will not loosen downward due to vibration during workpiece processing, thereby improving the accuracy of the position of the first adjusting member 200 and enabling the workpiece to be stably clamped and fixed on the base frame 100.

[0044] In this embodiment of the application, the diameter adjustable clamping and fixing fixture further includes a first limiting seat 310 and a first connecting rod 320. The first limiting seat 310 is fixed on the first end face 110, one end of the first connecting rod 320 is connected to the first adjusting member 200, and the other end of the first connecting rod 320 is movably connected to the first limiting seat 310.

[0045] The first limiting seat 310 is fixed on the first end face 110. One end of the first connecting rod 320 is connected to the first adjusting member 200, and the other end is movably connected to the first limiting seat 310. The first connecting rod 320 realizes the connection between the first adjusting member 200 and the first limiting seat 310. Through the cooperation between the first connecting rod 320 and the first limiting seat 310, the movement position of the first adjusting member 200 can be limited and adjusted to prevent the first adjusting member 200 from moving excessively, and the stability of the first adjusting member 200 during the movement process can also be guaranteed.

[0046] Furthermore, the diameter-adjustable clamping fixture also includes a first nut 330. A first through hole 311 is provided on the first limiting seat 310. One end of the first connecting rod 320 is fixedly connected to the first adjusting member 200, and the other end passes through the first through hole 311 and is threadedly connected to the first nut 330. By rotating the first nut 330, the movement of the first connecting rod 320 can be precisely controlled, thereby adjusting the position of the first adjusting member 200 and achieving precise adjustment of the distance between the first clamping surface 210 and the second groove surface 132, meeting the clamping requirements of workpieces with different diameters.

[0047] refer to Figures 2-5 The adjustable-diameter clamping fixture also includes a second adjusting member 400, which is movably disposed on the second groove surface 132. The end of the second adjusting member 400 away from the second groove surface 132 has a second clamping surface 410. In the second direction Y, the first clamping surface 210 and the second clamping surface 410 are symmetrically arranged. The first clamping surface 210 and the second clamping surface 410 jointly clamp the workpiece, further improving the stability of the workpiece clamping. The symmetrical arrangement of the first clamping surface 210 and the second clamping surface 410 ensures that the workpiece receives a uniform clamping force during clamping, avoiding workpiece deformation or machining errors caused by uneven clamping force.

[0048] Specifically, the angle α between the first clamping surface 210 and the second clamping surface 410 is smaller than the angle β between the first groove surface 131 and the second groove surface 132. Specifically, the angle α between the first clamping surface 210 and the second clamping surface 410 is 5° to 8° smaller than the angle β between the first groove surface 131 and the second groove surface 132, ensuring that the force on the first adjusting member 200 and the second adjusting member 400 is upward under the weight of the workpiece. This prevents the first adjusting member 200 and the second adjusting member 400 from loosening downwards due to vibration during workpiece processing.

[0049] A second groove 132a is provided on the second groove surface 132, extending from one end near the first end face 110 to one end near the second end face 120. A second slider 420 is provided on the second adjusting member 400, and the second slider 420 is slidably disposed in the second groove 132a. Similar to the sliding connection structure between the first adjusting member 200 and the first groove surface 131, the second slider 420 is slidably disposed in the second groove 132a to ensure stable sliding of the second adjusting member 400 on the second groove surface 132.

[0050] In this embodiment, the first adjusting member 200 is detachably connected to the base frame 100, and the second adjusting member 400 is detachably connected to the base frame 100. When the workpiece diameter span is large, the versatility of the tooling is further improved by replacing the first adjusting member 200 and the second adjusting member 400 with different thicknesses.

[0051] The system also includes a second limiting seat 510, a second connecting rod 520, and a second nut 530. The second limiting seat 510 is fixed to the first end face 110 and has a second through hole 511. One end of the second connecting rod 520 is fixedly connected to the second adjusting member 400, and the other end passes through the second through hole 511 and is threadedly connected to the second nut 530. By rotating the second nut 530, the position of the second adjusting member 400 can be precisely adjusted, thereby adjusting the distance between the second clamping surface 410 and the first groove surface 131. Together with the first adjusting member 200, it completes the clamping and fixing of workpieces of different diameters.

[0052] refer to Figure 4 , Figure 5 and Figure 6 The adjustable clamping fixture also includes a pressure plate 600, a screw 700, and an adjusting bolt 800. The pressure plate 600 is connected to the base frame 100 via the screw 700. The pressure plate 600 has a third clamping surface 610, which, together with the mounting groove 130, forms a clamping space 620. The adjusting bolt 800 is located on the third clamping surface 610. Specifically, the third clamping surface 610 is an arc surface. The pressure plate 600 is pressed onto the workpiece by the adjusting bolt 800. When the workpiece is fixed in the mounting groove 130, the pressure plate 600 with the third clamping surface 610 clamps the workpiece. When the shaft diameters are different, the adjusting bolt 800 on the pressure plate 600 is adjusted to achieve the clamping effect, ensuring that the workpiece will not loosen or shift during clamping, thereby improving machining accuracy and quality.

[0053] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0054] Furthermore, the use of terms such as "first," "second," and "a" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0056] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

Claims

1. A clamping and fixing fixture with adjustable diameter, characterized in that, include: The base frame includes a first end face and a second end face that are disposed opposite to each other in a first direction. The first end face is recessed to form a mounting groove. The mounting groove includes a first groove surface and a second groove surface that are disposed opposite to each other in a second direction. Both the first groove surface and the second groove surface are inclined relative to the first direction. The first direction intersects the second direction. A first adjusting member is movably disposed on the first groove surface, and a first clamping surface is provided on the end of the first adjusting member away from the first groove surface; When the first adjusting member moves from the end closer to the first end face to the end closer to the second end face, the distance between the first clamping surface and the second groove surface decreases. When the first adjusting member moves from the end closer to the second end face to the end closer to the first end face, the distance between the first clamping surface and the second groove surface increases.

2. The adjustable diameter clamping and fixing fixture according to claim 1, characterized in that, The first groove surface is provided with a first sliding groove, which extends from one end near the first end face to one end near the second end face. The first adjusting member is provided with a first slider, which is slidably disposed in the first sliding groove.

3. The adjustable diameter clamping and fixing fixture according to claim 1, characterized in that, The first clamping surface and the first groove surface have an included angle, and the distance between the first clamping surface and the first groove surface gradually decreases from the end closer to the first end face to the end closer to the second end face.

4. The adjustable diameter clamping and fixing fixture according to claim 1, characterized in that, It also includes a first limiting seat and a first connecting rod. The first limiting seat is fixed to the first end face, one end of the first connecting rod is connected to the first adjusting member, and the other end of the first connecting rod is movably connected to the first limiting seat.

5. The adjustable diameter clamping and fixing fixture according to claim 4, characterized in that, It also includes a first nut, a first through hole on the first limiting seat, one end of the first connecting rod being fixedly connected to the first adjusting member, and the other end of the first connecting rod passing through the first through hole and threadedly connected to the first nut.

6. The diameter-adjustable clamping and fixing fixture according to any one of claims 1-5, characterized in that, It also includes a second adjusting member, which is movably disposed on the second groove surface, and the end of the second adjusting member away from the second groove surface is provided with a second clamping surface; In the second direction, the first clamping surface and the second clamping surface are symmetrically arranged.

7. The adjustable diameter clamping and fixing fixture according to claim 6, characterized in that, The angle between the first clamping surface and the second clamping surface is smaller than the angle between the first groove surface and the second groove surface.

8. The diameter-adjustable clamping and fixing fixture according to claim 6, characterized in that, The second groove surface is provided with a second sliding groove, which extends from one end near the first end face to one end near the second end face. The second adjusting member is provided with a second slider, which is slidably disposed in the second sliding groove.

9. The adjustable diameter clamping and fixing fixture according to claim 6, characterized in that, It also includes a second limiting seat, a second connecting rod, and a second nut. The second limiting seat is fixed to the first end face and has a second through hole. One end of the second connecting rod is fixedly connected to the second adjusting member, and the other end of the second connecting rod passes through the second through hole and is threadedly connected to the second nut.

10. The diameter-adjustable clamping and fixing fixture according to claim 1, characterized in that, It also includes a pressure plate, a screw, and an adjusting bolt. The pressure plate is connected to the base frame via the screw. The pressure plate has a third clamping surface, which, together with the mounting groove, forms a clamping space. The adjusting bolt is located on the third clamping surface.

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