A sleeve type clamp

Abstract

The utility model relates to a sleeve type clamp, including sleeve and first connecting block, sleeve has main part and taper structure, first connecting block abuts on the outside surface with the gradient of taper structure, when first connecting block moves along the axial direction, the position of first connecting block abutting on taper structure changes, thereby make taper structure gather inwards / open outwards, further reach the purpose that let the clamping hole become big / become small. When needing to clamp work piece, can make taper structure gather inwards, when needing to release work piece, can make taper structure open outwards. Compared with prior art, through sleeve type clamp can obtain greater clamping area when clamping work piece, thereby avoid eccentricity phenomenon produced in the rotation process of work piece to the maximum, reach the purpose that improve part machining accuracy.

Description

Technical Field

[0001] This utility model relates to the field of machine tool equipment technology, and in particular to a sleeve-type clamp. Background Technology

[0002] Abutments, dental implants, and other dental implantable medical device parts are consumable parts. The blanks are made from bar stock, and dozens of parts can be made from a one-meter-long bar stock, which is a mass production process.

[0003] In the current technology, bar stock parts are usually clamped using a chuck. However, due to the small clamping area of ​​the chuck, long bars will undergo large deformation at the clamping position, resulting in eccentricity during rotation and affecting the machining accuracy of the parts. Utility Model Content

[0004] To address the shortcomings of existing clamping solutions that cause eccentricity during rotation, thus affecting the machining accuracy of parts, this utility model proposes a sleeve-type clamp.

[0005] The technical solution adopted by this utility model is a sleeve-type clamp, including a sleeve and a first connecting block. The sleeve has a main body and at least two conical structures. One end of the conical structure is connected to the main body. Multiple conical structures are separated from each other and form a clamping hole in the middle for clamping the workpiece. The outer surface of the conical structure has a slope and is abutted by the first connecting block. When the first connecting block moves along the axial direction of the sleeve, the conical structure converges inward / opens outward, thereby making the clamping hole smaller / larger.

[0006] In some embodiments, three conical structures of the same shape and size form a clamping hole.

[0007] In some embodiments, any two conical structures are separated from each other to form an opening slot, and the three opening slots have the same shape and size.

[0008] In some embodiments, the opening groove is provided along the axial direction of the sleeve.

[0009] In some embodiments, the opening groove extends from the conical structure to the body portion.

[0010] In some embodiments, the conical structure has a first conical surface and a second conical surface, the outer surface of the main body, the first conical surface and the second conical surface are connected in sequence, the outer diameter is the largest at the position where the first conical surface and the second conical surface are connected, and the first connecting block abuts against the first conical surface.

[0011] In some embodiments, each conical structure abuts against the first connecting block.

[0012] In some embodiments, the main body and the conical structure are integrally formed.

[0013] In some embodiments, the shape of the clamping hole matches the cross-sectional shape of the workpiece.

[0014] In some embodiments, the first connecting block is sleeved outside the sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This application discloses a sleeve-type clamp, including a sleeve and a first connecting block. The sleeve has a main body and a conical structure. The first connecting block abuts against the sloped outer surface of the conical structure. When the first connecting block moves axially, its position against the conical structure changes, causing the conical structure to converge inwards / open outwards, thereby increasing / decreasing the size of the clamping hole. When clamping a workpiece, the conical structure can converge inwards; when releasing a workpiece, the conical structure can open outwards. Compared with the prior art, the sleeve-shaped clamp can achieve a larger clamping area when clamping a workpiece, thereby minimizing the eccentricity of the workpiece during rotation and improving the machining accuracy of the parts. Attached Figure Description

[0017] The present invention will now be described in detail with reference to the embodiments and accompanying drawings, wherein:

[0018] Figure 1 A cross-sectional view is shown of a sleeve-type clamp provided according to an embodiment of the present invention, mounted in a turning clamping assembly;

[0019] Figure 2 It shows according to Figure 1 An exploded view of a sleeve-type clamp mounted in a turning clamping assembly;

[0020] Figure 3 It shows according to Figure 1 A schematic diagram of the sleeve structure in a sleeve-type clamp is provided.

[0021] Label Explanation:

[0022] 10. Sleeve; 20. First connecting block; 30. Opening groove; 40. Conical surface structure; 50. Clamping hole; 60. Main body. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] This utility model discloses a sleeve-type clamp, please refer to... Figures 1 to 3 The sleeve 10 includes a sleeve 10 and a first connecting block 20. The sleeve 10 has a main body 60 and at least two conical structures 40. One end of the conical structure 40 is connected to the main body 60. The multiple conical structures 40 are separated from each other and form a clamping hole 50 in the middle for clamping the workpiece. The outer surface of the conical structure 40 has a slope and is abutted by the first connecting block 20. When the first connecting block 20 moves along the axial direction of the sleeve 10, the conical structure 40 converges inward / opens outward, thereby making the clamping hole 50 smaller / larger.

[0025] When the first connecting block 20 moves axially, its position against the conical structure 40 changes, causing the conical structure 40 to converge inwards / open outwards, thereby enlarging / shrinking the clamping hole 50. When clamping the workpiece, the conical structure 40 can converge inwards; when releasing the workpiece, it can open outwards. Compared to existing technologies, the sleeve 10-shaped clamp provides a larger clamping area, minimizing workpiece eccentricity during rotation and improving machining accuracy. The first connecting block can move axially via electrical or manual control, preferably electrical control. Furthermore, since motion is always relative, axial movement of the sleeve via electrical or manual control to achieve the purpose of this application should still fall within the scope of protection of this application. This application does not limit the object of electrical or manual control to the first connecting block or the sleeve.

[0026] In some embodiments, please refer to Figure 3 Three conical structures of the same shape and size 40 form a clamping hole 50.

[0027] Specifically, the cone-shaped structure 40 is preferably selected in a quantity of three, with the three claws evenly distributed around the circumference to form a stable triangular support structure. This structure ensures that the force is evenly distributed across the three contact points when gripping an object, preventing the gripper from slipping or being damaged due to uneven force.

[0028] In some embodiments, please refer to Figure 3 Any two conical structures 40 are separated from each other to form an opening groove 30, and the three opening grooves 30 have the same shape and size.

[0029] When the three openings 30 are of the same shape and size, that is, when the spacing between the conical structures 40 is the same, the sleeve 10 can form a perfect equilateral triangle structure when gripping an object. This structure has optimal mechanical balance, which can ensure that the force on each claw is evenly distributed, avoiding excessive local force that could cause the object to slip or be damaged.

[0030] In some embodiments, please refer to Figure 3 The opening groove 30 is set along the axial direction of the sleeve 10.

[0031] When the opening slot 30 is arranged along the axial direction, the space between the conical structures 40 can more directly adapt to the shape and size of the workpiece. This design allows the workpiece to enter the gripping space, i.e., the clamping hole 50, formed by the three conical structures 40 more smoothly when inserted or gripped, reducing jamming or inability to grip due to structural limitations.

[0032] In some embodiments, please refer to Figure 3 The opening groove 30 extends from the conical structure 40 to the main body 60.

[0033] When the opening slot 30 extends to the position of the main body 60, the opening depth of the entire conical structure 40 is further enhanced, allowing the grippers to accommodate workpieces with a longer size range. Especially for workpieces that are long or irregularly shaped, this design avoids the problem of workpieces failing to enter the gripping area due to localized dimensions exceeding expectations. Simultaneously, the extended depth of the opening slot 30 provides more stable guidance and support for the workpiece during insertion, reducing the risk of gripping failure due to workpiece wobbling or displacement. Furthermore, this design provides a more uniform clamping force distribution after gripping, preventing workpiece deformation or slippage caused by uneven localized force, thereby significantly improving the reliability and stability of the gripping process.

[0034] In some embodiments, please refer to Figure 3 The conical structure 40 has a first conical surface and a second conical surface. The outer surface of the main body 60, the first conical surface and the second conical surface are connected in sequence. The outer diameter is the largest at the position where the first conical surface and the second conical surface are connected. The first connecting block 20 abuts against the first conical surface.

[0035] It should be noted that the second conical surface can extend the channel length of the clamping hole 50 and minimize the impact on the turning process, preventing the clamping position from hindering the turning process.

[0036] In some embodiments, each conical structure 40 abuts against the first connecting block 20.

[0037] It should be noted that, in order to make the inward convergence or outward opening of the conical structure 40 more stable and reliable, each conical structure 40 is made to abut against the first connecting block 20.

[0038] In some embodiments, the main body 60 and the conical structure 40 are integrally formed.

[0039] Specifically, the one-piece molding design eliminates assembly gaps or weak points in the connection between the main body 60 and the conical structure 40, making the fixture a continuous mechanical structure. During clamping, external forces are evenly transmitted to the main body 60 through the conical structure 40, avoiding stress concentration or local deformation caused by split structures (such as welding or bolted connections), thereby significantly improving the rigidity and fatigue resistance of the fixture.

[0040] In some embodiments, please refer to Figure 3 The shape of the clamping hole 50 matches the cross-sectional shape of the workpiece.

[0041] When the shape of the clamping hole 50 perfectly matches the cross-section of the workpiece, the clamping force is evenly distributed on the contact surface between the workpiece and the fixture, avoiding local stress concentration caused by point contact or line contact. For example, when a square workpiece is inserted into the square clamping hole 50, all four sides are subjected to force simultaneously. Compared with a round hole clamping a square workpiece (only the corners are in contact), this can reduce the bending or twisting deformation of the workpiece caused by uneven clamping force.

[0042] In some embodiments, please refer to Figure 1 and Figure 2 The first connecting block 20 is fitted outside the sleeve 10.

[0043] Specifically, when the first connecting block 20 is sleeved outside the sleeve 10, it can make the sleeve clamp more stable in assembly; it can make the first connecting block 20 easier to abut against the conical structure 40; and it can make the axial movement of the first connecting block 20 more uniform.

[0044] In the description of this specification, the terms "Embodiment 1," "this embodiment," or "in one embodiment," etc., indicate that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the utility model or invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example; moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in one or more embodiments or examples.

[0045] In the description of this specification, the terms "connection," "installation," "fixing," "setting," and "having" are interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In the description of this specification, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] The above description of the embodiments is intended to enable those skilled in the art to understand and apply the technology of this invention. Those skilled in the art can readily make various modifications to these examples and apply the general principles described herein to other embodiments without creative effort. Therefore, this invention is not limited to the above embodiments. Modifications in the following situations should be within the scope of protection of this invention: ① New technical solutions implemented based on the technical solution of this utility model and combined with existing common knowledge, where the technical effects of the new technical solution do not exceed the technical effects of this utility model; ② Equivalent substitutions of some features of the technical solution of this utility model using known technology, resulting in the same technical effects as those of this utility model; ③ Extendable technical solutions based on the technical solution of this utility model, where the substantive content of the extended technical solution does not exceed the technical solution of this utility model; ④ Equivalent transformations made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields.

Claims

1. A sleeve-type clamp, characterized in that, The device includes a sleeve and a first connecting block. The sleeve has a main body and at least two conical structures. One end of each conical structure is connected to the main body. Multiple conical structures are separated from each other and form a clamping hole in the middle for clamping a workpiece. The outer surface of each conical structure has a slope and is abutted by the first connecting block. When the first connecting block moves along the axial direction of the sleeve, the conical structures converge inward / open outward, thereby making the clamping hole smaller / larger.

2. The sleeve-type clamp according to claim 1, characterized in that, The clamping hole is formed by three conical structures of the same shape and size.

3. The sleeve-type clamp according to claim 2, characterized in that, Any two of the conical structures are separated from each other to form an opening groove, and the three opening grooves have the same shape and size.

4. The sleeve-type clamp according to claim 3, characterized in that, The opening groove is provided along the axial direction of the sleeve.

5. The sleeve-type clamp according to claim 4, characterized in that, The opening groove extends from the conical structure to the main body.

6. The sleeve-type clamp according to any one of claims 1 to 5, characterized in that, The conical structure has a first conical surface and a second conical surface. The outer surface of the main body, the first conical surface and the second conical surface are connected in sequence. The outer diameter is the largest at the position where the first conical surface and the second conical surface are connected. The first connecting block abuts against the first conical surface.

7. The sleeve-type clamp according to any one of claims 1 to 5, characterized in that, Each of the conical structures abuts against the first connecting block.

8. The sleeve-type clamp according to any one of claims 1 to 5, characterized in that, The main body and the conical structure are integrally formed.

9. The sleeve-type clamp according to any one of claims 1 to 5, characterized in that, The shape of the clamping hole matches the cross-sectional shape of the workpiece.

10. The sleeve-type clamp according to any one of claims 1 to 5, characterized in that, The first connecting block is sleeved outside the sleeve.

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