Machine tool headstock clamp

By designing adjustable machine tool head fixtures, using multiple clamping parts and adjustment bolts, the problem of insufficient applicability of clamps to workpieces of different sizes and shapes in the prior art is solved, and flexible clamping of various types of workpieces is achieved and stable clamping.

CN222288830UActive Publication Date: 2025-01-03WUHAN MACHINE TOOL
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Patent Information

Application Number
CN202421152629.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-24
Publication Date
2025-01-03
Estimated Expiration
2034-05-24

AI Technical Summary

Technical Problem

Existing machine tool fixtures lack flexibility and applicability when handling workpieces of different sizes and shapes, making it particularly difficult to clamp irregular shapes and small workpieces.

Method used

A machine tool head fixture including an adjustable mounting bracket and multiple clamping parts is designed, and flexible adjustment of clamping position and shape is achieved through adjustment bolts and connecting arms, suitable for workpieces of various types and sizes.

Benefits of technology

Improves the suitability and clamping range of fixtures, enabling flexible clamping of workpieces of different sizes and shapes, including irregular and small workpieces, enhanced stability and flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a machine tool headstock clamp which comprises an adjustable installation support, one side of the installation support is detachably connected with a first clamp body, a second clamp body is arranged below the first clamp body, and the first clamp body and the second clamp body are connected through first adjusting bolts on the two sides. A first clamping part is arranged in the middle of the first clamp body, a second clamping part is arranged in the middle of the second clamp body, and a third clamping part is arranged on the other side of the second clamping part; the first clamping part corresponds to the second clamping part so as to clamp a workpiece, or the first clamping part corresponds to the third clamping part so as to clamp the workpiece. The lathe head clamp is simple in structure and high in flexibility, the clamping position can be adjusted in multiple directions, and various types of workpieces with different sizes can be clamped.
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Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a headstock clamp of a machine tool. Background Art

[0002] When machining workpieces, machine tools usually need to use fixtures to clamp the workpieces. Different sizes and types of workpieces need to be replaced with different fixtures for clamping. Frequent replacement of fixtures is not convenient. There are also adjustable claw-disc fixtures for clamping workpieces. Although this type of fixture can clamp workpieces of various sizes, it is mostly for cylindrical workpieces. It is not universal for irregular or differently shaped workpieces (such as the clamping of broach-type workpieces). Moreover, this type of fixture has a limited range of sizes that can be clamped, and workpieces with small circumferential dimensions are not easy to clamp. Summary of the invention

[0003] The utility model aims to provide a machine tool headstock clamp in view of the problems existing in the prior art.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A machine tool headstock clamp comprises an adjustable mounting bracket, a first clamp body is detachably connected to one side of the mounting bracket, a second clamp body is provided below the first clamp body, and the first clamp body and the second clamp body are connected by first adjustment bolts on both sides; a first clamping portion is provided in the middle of the first clamp body, a second clamping portion is provided in the middle of the second clamp body, and a third clamping portion is provided on the other side of the second clamping portion; the first clamping portion corresponds to the second clamping portion to clamp a workpiece, or the first clamping portion corresponds to the third clamping portion to clamp the workpiece.

[0006] The lathe clamp of this machine tool has a simple structure and high flexibility. It can adjust the clamping position in multiple directions and can also clamp various types of workpieces of different sizes.

[0007] The first clamp and the second clamp are arranged opposite to each other, and a clamping space is formed therebetween, which can be used to clamp the workpiece to be processed; the second clamp is connected to the first clamp by the first adjusting bolt, and the first adjusting bolt is also used to adjust the relative position between the first clamp and the second clamp, and the first adjusting bolt is used to clamp and fix the workpiece to be processed.

[0008] The second clamping body is provided with two different clamping parts in the positive and negative directions, namely the second clamping part and the third clamping part. These two clamping parts can cooperate with the first clamping part respectively so as to clamp workpieces with different peripheral sizes and shapes, thereby greatly improving the applicability of the entire clamp.

[0009] Furthermore, the first clamping body is also provided with an adjusting push rod, which is threadably inserted into the first clamping portion, and the adjusting push rod can be used to push the workpiece to be clamped from above.

[0010] Furthermore, the first clamping body is provided with first connecting arms at both ends of the first clamping portion, and the second clamping body is provided with second connecting arms at both ends of the second clamping portion, the first connecting arms and the second connecting arms are arranged parallel and opposite to each other, and the first adjusting bolt connects the first connecting arms and the second connecting arms. The arrangement of the two opposite and parallel to each other facilitates the adjustment and locking of the spacing between the two.

[0011] Furthermore, a surface of the first clamping portion facing the second clamping body is an arc surface.

[0012] Furthermore, the second clamping portion and the third clamping portion respectively have an eight-shaped clamping surface, and the size of the third clamping portion is smaller than that of the second clamping portion.

[0013] Furthermore, the mounting bracket includes a connecting mounting plate, one end of the connecting mounting plate is used to connect to the machine tool headstock, and the other end is provided with an adjusting rod, the adjusting rod is connected to the connecting mounting plate through a second adjusting bolt, and one end side of the adjusting rod is connected to the first clamp through a bolt.

[0014] Furthermore, the adjusting rod is an inverted T-shaped rod.

[0015] Furthermore, the connecting mounting plate includes a base plate, a connecting plate is provided in the middle of the base plate, a pair of ear plates are provided on both sides of the end of the connecting plate, and the second adjusting bolt is connected to the ear plate to clamp the adjusting rod between the pair of ear plates.

[0016] Furthermore, the connecting and mounting plate is arranged horizontally, and the adjusting rod is arranged vertically; the first clamping body is connected to a side of the adjusting rod facing away from the connecting and mounting plate, or is on the same side as the connecting and mounting plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. The structure of the lathe clamp of this machine tool is simple and flexible. It can adjust the clamping position in multiple directions and can clamp various types of workpieces of different sizes; 2. On the one hand, the mounting bracket installs the entire clamp on the machine tool, and on the other hand, it is also used to connect and install the first clamp, which can also be adjusted in position; 3. The first clamp and the second clamp are arranged opposite to each other, and a clamping space is formed therebetween, which can be used to clamp the workpiece to be processed; the first adjusting bolt can be used to connect the first clamp and the second clamp, and can also be used to adjust the relative position between the first clamp and the second clamp, and can also allow the first clamp and the second clamp to clamp and fix the workpiece to be processed; 4. The second clamp is provided with two different clamping parts in the positive and negative directions, namely the second clamping part and the third clamping part, and these two clamping parts can cooperate with the first clamping part respectively so that it can clamp workpieces with different peripheral sizes and shapes, which greatly improves the applicability and clamping range of the entire clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a machine tool headstock fixture of the utility model;

[0019] Figure 2 It is a side structural schematic diagram of a machine tool headstock fixture of the utility model;

[0020] Figure 3 The structure diagram of the fixture of the utility model installed on the machine tool body Figure 1 ;

[0021] Figure 4 The structure diagram of the fixture of the utility model installed on the machine tool body Figure 2 ;

[0022] Figure 5 It is a schematic diagram of a machine tool headstock clamp adjusting the clamping range to be enlarged according to the utility model;

[0023] Figure 6 It is a schematic diagram of another clamping method of a machine tool headstock clamp of the utility model;

[0024] Figure 7 This is a structural schematic diagram of a connecting and mounting plate of a machine tool headstock fixture of the utility model;

[0025] Figure 8 For Figure 7 Schematic diagram of the AA section structure;

[0026] Fig. 9 This is a schematic diagram of another arrangement structure of the first clamping body and the second clamping body of the utility model;

[0027] In the figure: 1. first clamping body; 101. first clamping part; 102. first connecting arm; 2. second clamping body; 201. second clamping part; 202. third clamping part; 203. second connecting arm; 3. first adjusting bolt; 4. adjusting top rod; 5. connecting mounting plate; 501. bottom plate; 502. connecting plate; 503. ear plate; 6. adjusting rod; 7. second adjusting bolt. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] like Figure 1 to Figure 6 As shown, a machine tool headstock clamp comprises an adjustable mounting bracket, one side of the mounting bracket is detachably connected with a first clamp body 1, a second clamp body 2 is provided below the first clamp body 1, and the first clamp body 1 and the second clamp body 2 are connected by first adjusting bolts 3 on both sides; a first clamping portion 101 is provided in the middle of the first clamp body 1, a second clamping portion 201 is provided in the middle of the second clamp body 2, and a third clamping portion 202 is provided on the other side of the second clamping portion 201; the first clamping portion 101 corresponds to the second clamping portion 201 to clamp the workpiece, or the first clamping portion 101 corresponds to the third clamping portion 202 to clamp the workpiece.

[0031] The lathe clamp of this machine tool has a simple structure and high flexibility. It can adjust the clamping position in multiple directions and can also clamp various types of workpieces of different sizes.

[0032] The mounting bracket, on one hand, mounts the entire fixture on the machine tool, and on the other hand, is also used to connect and mount the first clamp, and the mounting bracket itself can also be adjusted in position.

[0033] The first clamp 1 and the second clamp 2 are arranged opposite to each other, and a clamping space is formed therebetween, which can be used to clamp the workpiece to be processed; the second clamp 2 is connected to the first clamp 1 by the first adjusting bolt 3, and the first adjusting bolt 3 is also used to adjust the relative position between the first clamp 1 and the second clamp 2, and the first adjusting bolt 3 is used to clamp and fix the workpiece to be processed.

[0034] The second clamping body 2 is provided with two different clamping parts in the positive and negative directions, namely the second clamping part 201 and the third clamping part 202. These two clamping parts can respectively cooperate with the first clamping part 101 to enable it to clamp workpieces with different peripheral sizes and shapes, thereby greatly improving the applicability of the entire clamp.

[0035] Furthermore, the first clamping body 1 is further provided with an adjusting push rod 4 , and the adjusting push rod 4 is threadably inserted into the first clamping portion 101 .

[0036] The adjusting push rod 4 is arranged in the middle of the first clamping part of the first clamping body 1, and the adjusting push rod 4 can be used to push the workpiece to be clamped from above; the arrangement of the adjusting push rod 4 makes the clamp capable of clamping more types of workpieces, not limited to cylindrical or rectangular workpieces.

[0037] Furthermore, the first clamping body 1 is provided with a first connecting arm 102 at both ends of the first clamping portion 101, and the second clamping body 2 is provided with a second connecting arm 203 at both ends of the second clamping portion 201, the first connecting arm 102 and the second connecting arm 203 are parallel and oppositely arranged, and the first adjusting bolt 3 connects the first connecting arm 102 and the second connecting arm 203.

[0038] The first connecting arm 102 and the second connecting arm 203 are both rectangular structures, arranged opposite to each other and in parallel, so as to facilitate the adjustment of the distance between them and locking.

[0039] Furthermore, a surface of the first clamping portion 101 facing the second clamping body 2 is an arc surface.

[0040] The second clamping portion 201 and the third clamping portion 202 respectively have an eight-shaped clamping surface, and the size of the third clamping portion 202 is smaller than that of the second clamping portion 201. Through these settings, at least three clamping points can be formed on the periphery of the workpiece to be processed during clamping, making the clamping more reliable and stable; the third clamping portion 202 can clamp a smaller workpiece.

[0041] Furthermore, the mounting bracket includes a connecting mounting plate 5, one end of the connecting mounting plate 5 is used to connect to the machine tool headstock, and the other end is provided with an adjusting rod 6, the adjusting rod 6 is connected to the connecting mounting plate 5 through a second adjusting bolt 7, and the lower end side of the adjusting rod 6 is connected to the first clamp 1 through a bolt.

[0042] The connecting mounting plate 5 is usually arranged horizontally, and the adjusting rod 6 is arranged vertically. The adjusting rod 6 can adjust the height position relative to the connecting mounting plate 5, thereby adjusting the height position of the first clamp 1; a pair of the second adjusting bolts 7 can lock the adjusting rod 6 from both sides, and a locking groove can be set in the outer length direction of the adjusting rod 6, or it can be a bare rod structure with a small plane.

[0043] In certain states, the adjusting rod 6 can also be adjusted in angle, that is, the adjusting rod is rotated relative to the pair of second adjusting bolts.

[0044] Furthermore, the adjusting rod 6 is an inverted T-shaped rod, the upper rod body is used to connect a pair of the second adjusting bolts 7 , and the lower cross bar can be used to connect the first clamp body 1 .

[0045] Further, combined with Figure 7 and Figure 8 As shown, the connecting mounting plate 5 includes a base plate 501, a connecting plate 502 is provided in the middle of the base plate 501, a pair of ear plates 503 are provided on both sides of the end of the connecting plate 502, and the second adjusting bolt 7 is connected to the ear plate 503 to clamp the adjusting rod 6 between the pair of ear plates 503.

[0046] The bottom plate 501 is connected to the lathe headstock through screws, the adjusting rod 6 is arranged between a pair of the ear plates 503 , and a pair of the second adjusting bolts 7 pass through the ear plates 503 and are connected to the adjusting rod 6 .

[0047] In a normal state, the first clamping body 1 is arranged on the outer side of the adjusting rod 6 , that is, on the side facing away from the connecting mounting plate.

[0048] In other embodiments, Fig. 9 As shown, the first clamp body 1 is connected to the inner side of the adjusting rod 6, that is, on the same side as the connecting mounting plate 5. At this time, the length of the pair of ear plates 503 is slightly longer, and a space for the adjusting top rod 4 to pass through is reserved between the adjusting rod 6 and the connecting plate 502.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machine tool headstock fixture, characterized in that: It comprises an adjustable mounting bracket, one side of which is detachably connected with a first clamp, a second clamp is provided below the first clamp, and the first clamp and the second clamp are connected by first adjusting bolts on both sides; a first clamping portion is provided in the middle of the first clamp, a second clamping portion is provided in the middle of the second clamp, and a third clamping portion is provided on the other side of the second clamp; the first clamping portion corresponds to the second clamping portion to clamp a workpiece, or the first clamping portion corresponds to the third clamping portion to clamp the workpiece.

2. The machine tool headstock fixture according to claim 1, characterized in that: The first clamping body is also provided with an adjusting push rod, and the adjusting push rod is threadably inserted into the first clamping portion.

3. The machine tool headstock fixture according to claim 1, characterized in that: The first clamping body is provided with first connecting arms at both ends of the first clamping part, and the second clamping body is provided with second connecting arms at both ends of the second clamping part. The first connecting arm and the second connecting arm are arranged parallel and opposite to each other, and the first adjusting bolt connects the first connecting arm and the second connecting arm.

4. The machine tool headstock fixture according to claim 1, characterized in that: A surface of the first clamping portion facing the second clamping body is an arc surface.

5. The machine tool headstock fixture according to claim 1, characterized in that: The second clamping portion and the third clamping portion respectively have an eight-shaped clamping surface, and the size of the third clamping portion is smaller than that of the second clamping portion.

6. The machine tool headstock fixture according to claim 1, characterized in that: The mounting bracket includes a connecting mounting plate, one end of which is used to connect to the machine tool headstock, and the other end is provided with an adjusting rod, the adjusting rod is connected to the connecting mounting plate through a second adjusting bolt, and one end side of the adjusting rod is connected to the first clamp through a bolt.

7. The machine tool headstock fixture according to claim 6, characterized in that: The adjusting rod is an inverted T-shaped rod.

8. The machine tool headstock fixture according to claim 6, characterized in that: The connecting mounting plate comprises a bottom plate, a connecting plate is provided in the middle of the bottom plate, a pair of ear plates are provided on both sides of the end of the connecting plate, and the second adjusting bolt is connected to the ear plates to clamp the adjusting rod between the pair of ear plates.

9. The machine tool headstock fixture according to claim 6, characterized in that: The connecting and mounting plate is arranged horizontally, and the adjusting rod is arranged vertically; the first clamping body is connected to a side of the adjusting rod facing away from the connecting and mounting plate, or is on the same side as the connecting and mounting plate.