Auxiliary clamp for lathe chuck and lathe chuck

Abstract

The utility model relates to an auxiliary clamp for a lathe chuck and the lathe chuck, the auxiliary clamp comprises a clamping assembly, the clamping assembly comprises a first clamping piece and a second clamping piece which are detachably connected, and a clamping cavity is formed between the connecting surfaces of the first clamping piece and the second clamping piece; a clamping part capable of being clamped by a clamping mechanism of a lathe chuck is formed on the sides, deviating from each other, of the first clamping piece and the second clamping piece; a protruding part is arranged on the first clamping piece, a concave part is arranged on the second clamping piece, the protruding part can be embedded in the concave part, a workpiece to be clamped can be clamped in the clamping cavity through the first clamping piece and the second clamping piece, and when the protruding part is embedded in the concave part, the workpiece to be clamped can be clamped in the clamping cavity through the concave part and the protruding part. The first clamping piece and the second clamping piece can clamp the to-be-clamped workpiece contained in the clamping cavity, and the auxiliary clamp can be clamped by the clamping mechanism, so that the clamping effect of the to-be-clamped workpiece is guaranteed, the difficulty of adjusting the concentricity of the to-be-clamped workpiece can be reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of chucks, and in particular to an auxiliary chuck for a lathe chuck and a lathe chuck. Background Art

[0002] A lathe is a machine tool that mainly uses a turning tool to turn a rotating workpiece. Drills, reamer, reamers, taps, dies and knurling tools can also be used on the lathe for corresponding processing. During processing, a clamping mechanism is also required to clamp and position the workpiece to be clamped.

[0003] However, the inner diameter of the clamping mechanism of the lathe chuck is generally large, especially for small tubes or bars of Φ3 to Φ20, which cannot be firmly clamped when performing external circle or thread processing, and it is difficult to adjust the concentricity of the small tubes or bars, resulting in low processing efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide an auxiliary clamp for a lathe chuck and a lathe chuck that can ensure the clamping effect of the workpiece to be clamped, reduce the difficulty of adjusting the concentricity of the workpiece to be clamped, and improve the processing efficiency.

[0005] An auxiliary clamp for a lathe chuck, the lathe chuck also includes a clamping mechanism, the auxiliary clamp for the lathe chuck is used to be clamped by the clamping mechanism; the auxiliary clamp for the lathe chuck includes:

[0006] A clamping assembly, the clamping assembly comprising a first clamping member and a second clamping member that are detachably connected, a clamping cavity for accommodating a workpiece to be clamped is formed between connecting surfaces of the first clamping member and the second clamping member, and a clamping portion that can be clamped by a clamping mechanism of a lathe chuck is formed on the sides of the first clamping member and the second clamping member that are away from each other;

[0007] Wherein, a protrusion is provided on one of the side where the first clamping member is connected to the second clamping member and a recess is provided on the other of the side where the second clamping member is connected to the first clamping member, and the protrusion can be embedded in the recess.

[0008] In one embodiment, the clamping cavity is formed in the middle of the connecting surfaces of the first clamping member and the second clamping member, and the clamping cavity passes through the opposite side surfaces of the first clamping member and the second clamping member adjacent to the connecting surfaces.

[0009] In one embodiment, a first slot is formed on one side of the first clamping member connected to the second clamping member, and a second slot is formed on one side of the second clamping member connected to the first clamping member. The first slot and the second slot cooperate to form the clamping cavity.

[0010] In one embodiment, the protrusion and the recess each include two, and the two protrusions and the two recesses are symmetrically arranged along the central axis of the auxiliary clip.

[0011] In one embodiment, the auxiliary clamp for lathe chuck further includes a limiting member, which is disposed between the connecting surfaces of the first clamping member and the second clamping member, and is used to limit the connecting position of the first clamping member and the second clamping member.

[0012] In one embodiment, a limiting groove is provided on one of the first clamping member and the second clamping member, and the limiting member is disposed on the other of the first clamping member and the second clamping member, and the limiting member and the limiting groove can be slidably plugged into each other.

[0013] In one embodiment, the limiting members include two, and the two limiting members are symmetrically arranged along the central axis of the auxiliary clamp.

[0014] The present application also provides a lathe chuck, comprising: the auxiliary clamp for the lathe chuck and the clamping mechanism as described above, wherein the auxiliary clamp for the lathe chuck is detachably mounted on the clamping mechanism, and the clamping mechanism is capable of clamping the auxiliary clamp.

[0015] In one of the embodiments, the clamping mechanism includes a connecting chuck and a plurality of clamping assemblies arranged on the connecting chuck, a clamping cavity is opened in the middle of the connecting chuck, and the plurality of clamping assemblies are arranged at intervals along the circumference of the connecting chuck. The auxiliary clamp for the lathe chuck can be accommodated in the clamping cavity and clamped by the plurality of clamping assemblies.

[0016] In one embodiment, the clamping assembly includes a sliding groove and a clamping member arranged on the connecting chuck, and the clamping member can be slidably connected in the sliding groove in a direction close to or away from the clamping cavity, and the clamping member can be forced to move closer to the clamping cavity to clamp the lathe chuck with an auxiliary clamp.

[0017] In the above scheme, by setting the first clamping member and the second clamping member, the workpiece to be clamped can be clamped in the clamping cavity formed between the connecting surfaces of the first clamping member and the second clamping member, and by setting the recessed portion and the protruding portion, when the protruding portion is embedded in the recessed portion, the first clamping member and the second clamping member can clamp the workpiece to be clamped accommodated in the clamping cavity, and have a limiting function, which can prevent the first clamping member and the first clamping member from being misaligned along the radial direction of the clamping assembly, and can improve the clamping efficiency; the auxiliary clamp for the lathe chuck of the present application can clamp the workpiece to be clamped, and the auxiliary clamp for the lathe chuck can be clamped by the clamping mechanism of the lathe chuck, thereby ensuring the clamping effect of the workpiece to be clamped, and reducing the difficulty of adjusting the concentricity of the workpiece to be clamped, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic structural diagram of an auxiliary clamp for a lathe chuck in a first state as shown in one embodiment of the present application.

[0021] Figure 2 This is a schematic structural diagram of an auxiliary clamp for a lathe chuck in a second state as shown in one embodiment of the present application.

[0022] Figure 3 This is a structural schematic diagram of a workpiece to be clamped on an auxiliary clamp for a lathe chuck shown in an embodiment of the present application.

[0023] Figure 4 Schematic diagram of the structure of a clamping mechanism shown in one embodiment of the present application.

[0024] Figure 5 It is a cross-sectional structural diagram of a clamping mechanism shown in an embodiment of the present application.

[0025] Description of Reference Numerals

[0026] 10. Auxiliary clamp for lathe chuck; 20. Clamping mechanism; 100. Clamping assembly; 110. First clamping member; 120. Second clamping member; 130. Clamping cavity; 140. Protrusion; 150. Recess; 160. First clamping slot; 170. Second clamping slot; 200. Limiting member; 210. Limiting slot; 220. Limiting block; 300. Connecting chuck; 310. Clamping cavity; 400. Clamping assembly; 500. Workpiece to be clamped. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0033] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the present application relates to an auxiliary clamp 10 for a lathe chuck, and the lathe chuck includes a clamping mechanism 20. The auxiliary clamp 10 for a lathe chuck is used to be clamped by the clamping mechanism 20. The auxiliary clamp 10 for a lathe chuck includes a clamping assembly 100, and the clamping assembly 100 can clamp a workpiece 500 to be clamped. It should be noted that the workpiece 500 to be clamped can be a cylindrical structure of Φ3 to Φ20. Exemplarily, the workpiece 500 to be clamped is a small tube or a rod.

[0034] See also Figure 1 , Figure 2 and Figure 3The clamping assembly 100 includes a first clamping member 110 and a second clamping member 120 that are detachably connected, and a clamping cavity for accommodating a workpiece to be clamped is formed between the connecting surfaces of the first clamping member 110 and the second clamping member 120. The second clamping member 120 is arranged opposite to the first clamping member 110. A clamping portion that can be clamped by the clamping mechanism 400 of the lathe chuck 20 is formed on the side of the first clamping member 110 and the second clamping member 120 that are away from each other. Specifically, the clamping portion is the outer side wall of the first clamping member 110 and the second clamping member 120.

[0035] A protrusion 140 is provided on one of the two sides of the first clamping member 110 connected to the second clamping member 120 and the second clamping member 120 connected to the first clamping member 110. A recess 150 is provided on the other side of the two sides of the first clamping member 110 connected to the second clamping member 120 and the second clamping member 120 connected to the first clamping member 110.

[0036] In this embodiment, a protrusion 140 is provided on one side of the first clamping member 110 connected to the second clamping member 120. A recessed portion 150 is provided on one side of the second clamping member 120 connected to the first clamping member 110. The protrusion 140 can be embedded in the recessed portion 150. Specifically, the shapes of the protrusion 140 and the recessed portion 150 are adapted. More specifically, the corners of the protrusion 140 and the recessed portion 150 are both provided with rounded corners, which can facilitate the protrusion 140 to be embedded in the recessed portion 150, and when the protrusion 140 is embedded in the recessed portion 150, damage to the first clamping member 110 and the second clamping member 120 can be avoided.

[0037] See also Figure 1 , Figure 2 and Figure 3 When the protrusion 140 is embedded in the recess 150, the first clamping member 110 and the second clamping member 120 can clamp the workpiece 500 to be clamped in the clamping cavity 130. It should be noted that when the protrusion 140 is completely embedded in the recess 150, the first clamping member 110 and the second clamping member 120 can clamp the workpiece 500 to be clamped in the clamping cavity 130. When it is necessary to clamp the workpiece 500 to be clamped, the workpiece 500 to be clamped can be placed in the clamping cavity 130 first, and then the protrusion 140 can be embedded in the recess 150, so as to clamp the workpiece 500 to be clamped.

[0038] When the protrusion 140 is completely embedded in the recess 150, there may be a gap between the first clamping member 110 and the second clamping member 120, or there may be no gap between the first clamping member 110 and the second clamping member 120, which is not limited in the present application and can be set according to the workpiece 500 to be clamped. In this embodiment, when the protrusion 140 is completely embedded in the recess 150, there is a 2 mm gap between the first clamping member 110 and the second clamping member 120.

[0039] By setting the first clamping member 110 and the second clamping member 120, the workpiece 500 to be clamped can be clamped in the clamping cavity 130 formed between the connecting surfaces of the first clamping member 110 and the second clamping member 120. By setting the recessed portion 150 and the protruding portion 140, when the protruding portion 140 is embedded in the recessed portion 150, the first clamping member 110 and the second clamping member 120 can clamp the workpiece 500 to be clamped accommodated in the clamping cavity 130, and have a limiting function, which can prevent the first clamping member 110 and the first clamping member 110 from being misaligned along the radial direction of the clamping assembly 100, and can improve the clamping efficiency. The auxiliary clamp 10 for the lathe chuck in the present application can clamp the workpiece 500 to be clamped, and the auxiliary clamp 10 for the lathe chuck can be clamped by the clamping mechanism 20 of the lathe chuck, thereby ensuring the clamping effect of the workpiece 500 to be clamped, reducing the difficulty of adjusting the concentricity of the workpiece 500 to be clamped, and improving the processing efficiency.

[0040] See also Figure 1 , Figure 2 and Figure 3 According to some embodiments of the present application, optionally, a clamping cavity 130 is formed in the middle of the interconnected connection surface of the first clamping member 110 and the second clamping member 120, and the clamping cavity 130 passes through the opposite two side surfaces of the first clamping member 110 and the second clamping member 120 adjacent to the connection surface. By setting the clamping cavity 130 to pass through the opposite two side surfaces of the first clamping member 110 and the second clamping member 120 adjacent to the connection surface, it is convenient to place the workpiece 500 to be clamped.

[0041] A first slot 160 is formed on one side of the first clamping member 110 connected to the second clamping member 120 . A second slot 170 is formed on the second clamping member 120 connected to the first clamping member 110 . The first slot 160 and the second slot 170 cooperate to form a clamping cavity 130 .

[0042] More specifically, the inner contours of the first clamping groove 160 and the second clamping groove 170 are adapted to the outer contour of the workpiece 500 to be clamped, so that the workpiece 500 to be clamped fits better with the first clamping groove 160 and the second clamping groove 170, thereby ensuring the clamping effect of the workpiece 500 to be clamped. Specifically, the inner contours of the first clamping groove 160 and the second clamping groove 170 are both arc-shaped structures.

[0043] When the protruding portion 140 is inserted into the recessed portion 150 , the first clamping member 110 and the second clamping member 120 are jointly arranged at the first clamping groove 160 and the second clamping groove 170 to form a clamping cavity 130 .

[0044] See also Figure 1 , Figure 2 and Figure 3According to some embodiments of the present application, optionally, the protrusion 140 and the recess 150 each include two, and the two protrusions 140 and the two recesses 150 are symmetrically arranged along the central axis of the auxiliary clamp 10 for a lathe chuck. By providing the two protrusions 140 and the two recesses 150, it can be ensured that the first clamping member 110 and the first clamping member 110 are uniformly stressed when clamping the workpiece 500 to be clamped, and further the first clamping member 110 and the first clamping member 110 can be prevented from being misaligned along the radial direction of the clamping assembly 100, thereby ensuring the clamping effect.

[0045] See also Figure 1 , Figure 2 and Figure 3 According to some embodiments of the present application, optionally, the auxiliary clamp 10 for a lathe chuck further includes a limit member 200, which is disposed between the connecting surfaces of the first clamp 110 and the second clamp 120, and the limit member 200 is used to limit the connecting position of the first clamp 110 and the second clamp 120.

[0046] A limiting groove 210 is provided on one of the first clamping member 110 and the second clamping member 120. The limiting member 200 is disposed on the other of the first clamping member 110 and the second clamping member 120, and the limiting member 200 and the limiting groove 210 can be slidably plugged and matched. When the protrusion 140 is inserted into the recessed portion 150, the limiting block 220 is inserted into the limiting groove 210.

[0047] Specifically, the second clamping member 120 is provided with a limiting groove 210, the first clamping member 110 is provided with a mounting groove, the limiting block 220 is fixedly connected in the mounting groove, and part of the limiting block 220 is extended out of the mounting groove. When the protruding portion 140 is embedded in the recessed portion 150, part of the limiting block 220 is arranged in the mounting groove, and the other part is arranged in the limiting groove 210, which can limit the second clamping member 120 to ensure that the end faces of the first clamping member 110 and the second clamping member 120 are on the same plane, and can prevent the first clamping member 110 and the first clamping member 110 from sliding along the axial direction of the clamping assembly 100, thereby ensuring the clamping effect.

[0048] See also Figure 1 , Figure 2 and Figure 3 According to some embodiments of the present application, optionally, the limiting members 200 include two, and the two limiting members 200 are symmetrically arranged along the central axis of the clamping assembly 100. Specifically, two limiting grooves 210 are provided on the second clamping member 120, and the two limiting grooves 210 are symmetrically arranged along the central axis of the auxiliary clamp for lathe chuck 10. By providing two limiting members 200, it can be ensured that the first clamping member 110 and the first clamping member 110 are subjected to uniform force when clamping the workpiece 500 to be clamped.

[0049] See also Figure 4 and Figure 5 The present application also provides a lathe chuck, comprising: the auxiliary clamp 10 for the lathe chuck and the clamping mechanism 20 as described above, the auxiliary clamp 10 for the lathe chuck can be detachably installed on the clamping mechanism 20, and the clamping mechanism 20 can clamp the auxiliary clamp.

[0050] Specifically, the clamping mechanism 20 includes a connecting chuck 300 and a plurality of clamping assemblies 400 disposed on the connecting chuck 300. A clamping cavity 310 is provided in the middle of the connecting chuck 300. The plurality of clamping assemblies 400 are arranged at intervals along the circumference of the connecting chuck 300. The auxiliary clamp 10 for a lathe chuck can be accommodated in the clamping cavity 310 and clamped by the plurality of clamping assemblies 400.

[0051] See also Figure 4 and Figure 5 According to some embodiments of the present application, the clamping assembly 400 optionally includes a sliding groove and a clamping member disposed on the connection chuck 300, and the clamping member can be slidably connected in the sliding groove in a direction close to or away from the clamping cavity 310. The clamping member can be forced to move toward the clamping cavity 310 to clamp the lathe chuck with the auxiliary clamp 10. Specifically, the sliding groove is disposed toward the clamping cavity 310.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An auxiliary clamp for a lathe chuck, characterized in that: include: A clamping assembly, the clamping assembly comprising a first clamping member and a second clamping member that are detachably connected, a clamping cavity for accommodating a workpiece to be clamped is formed between connecting surfaces of the first clamping member and the second clamping member, and a clamping portion that can be clamped by a clamping mechanism of a lathe chuck is formed on the sides of the first clamping member and the second clamping member that are away from each other; Wherein, a protrusion is provided on one of the side where the first clamping member is connected to the second clamping member and a recess is provided on the other of the side where the second clamping member is connected to the first clamping member, and the protrusion can be embedded in the recess.

2. The auxiliary clamp for lathe chuck according to claim 1, characterized in that: The clamping cavity is formed in the middle of the interconnected connection surfaces of the first clamping member and the second clamping member, and the clamping cavity passes through the opposite side surfaces of the first clamping member and the second clamping member adjacent to the connection surfaces.

3. The auxiliary clamp for lathe chuck according to claim 1, characterized in that: A first slot is formed on one side of the first clamping member connected to the second clamping member, and a second slot is formed on one side of the second clamping member connected to the first clamping member. The first slot and the second slot cooperate to form the clamping cavity.

4. The auxiliary clamp for lathe chuck according to claim 1, characterized in that: The protruding portion and the recessed portion each include two, and the two protruding portions and the two recessed portions are symmetrically arranged along the central axis of the auxiliary clip.

5. The auxiliary clamp for lathe chuck according to claim 1, characterized in that: The auxiliary clamp for lathe chuck also includes a limiting member, which is arranged between the connecting surfaces of the first clamping member and the second clamping member, and is used to limit the connecting position of the first clamping member and the second clamping member.

6. The auxiliary clamp for lathe chuck according to claim 5, characterized in that: A limiting groove is provided on one of the first clamping member and the second clamping member, and the limiting member is arranged on the other of the first clamping member and the second clamping member. The limiting member and the limiting groove can be slidably plugged and matched.

7. The auxiliary clamp for lathe chuck according to claim 5, characterized in that: The limiting members include two, and the two limiting members are symmetrically arranged along the central axis of the auxiliary clamp.

8. A lathe chuck, characterized in that: include: According to the auxiliary clamp and clamping mechanism for a lathe chuck as described in any one of claims 1 to 7, the auxiliary clamp for a lathe chuck is detachably mounted on the clamping mechanism, and the clamping mechanism is capable of clamping the auxiliary clamp.

9. The lathe chuck according to claim 8, characterized in that: The clamping mechanism includes a connecting chuck and a plurality of clamping assemblies arranged on the connecting chuck. A clamping cavity is opened in the middle of the connecting chuck. The plurality of clamping assemblies are arranged at intervals along the circumference of the connecting chuck. The auxiliary clamp for the lathe chuck can be accommodated in the clamping cavity and clamped by the plurality of clamping assemblies.

10. The lathe chuck according to claim 9, characterized in that: The clamping assembly includes a sliding groove and a clamping piece arranged on the connecting chuck. The clamping piece can be slidably connected in the sliding groove in a direction close to or away from the clamping cavity. The clamping piece can be forced to move closer to the clamping cavity to clamp the lathe chuck with an auxiliary clamp.

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