Clamp for numerical control machine tool

Abstract

The utility model belongs to the technical field of numerically-controlled machine tools, and particularly relates to a clamp for a numerically-controlled machine tool, which comprises a fixed disc and a clamping component arranged on the outer side of the end part of the fixed disc, a mounting frame fixedly connected to the lower surface of the fixed disc, a motor mounted on the lower surface of the mounting frame, and a connecting disc fixedly connected to the outer side of a main shaft of the motor, the connecting rod is rotationally connected to the upper surface of the connecting disc; through the design of the connecting disc and the connecting rod, the four sliding blocks can synchronously move towards the middle part, and the design ensures that the positions and the speeds of the four sliding blocks are kept consistent when the four sliding blocks move, so that the centering clamping function is realized, and the centering clamping can ensure that materials are accurately placed in the center of the fixing disc; the method is particularly important for materials needing high-precision machining, it can be guaranteed that the materials are accurately placed at the machining position through centering clamping, and the machining precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tools, and in particular relates to a clamp for numerical control machine tools. Background Art

[0002] A fixture for CNC machine tools is a device used to fix, position and support workpieces on CNC machine tools. A fixture for CNC machine tools is an indispensable and important auxiliary equipment in CNC machining. Through its unique structure and design, it firmly fixes the workpiece on the machine tool to ensure the stability and precision of the workpiece during machining. However, traditional fixtures only clamp through two clamping blocks and lack the centering function. Due to the lack of centering clamping function, the material may not be accurately centered during the clamping process, resulting in a decrease in machining accuracy. The lack of accuracy will not only affect the machining quality, but may also increase subsequent calibration and correction work, thereby increasing production costs and time. Traditional fixtures are often designed for materials of specific shapes and sizes. For materials of different shapes and sizes, different fixtures need to be replaced or complex adjustments need to be made, which reduces the adaptability of the fixture. This low adaptability requires frequent fixture replacement when processing a variety of materials, which increases downtime and operational complexity and reduces production efficiency.

[0003] Therefore, a fixture for CNC machine tools is designed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] To solve the problems raised in the above background technology. The utility model provides a clamp for CNC machine tools. Through the design of the connecting disk and the connecting rod, the four sliding blocks can move synchronously to the middle. This design ensures that the positions and speeds of the four sliding blocks remain consistent when moving, thereby realizing the centering clamping function. The centering clamping can ensure that the material is accurately placed in the center of the fixed disk, which is particularly important for materials that need to be processed with high precision. Through the centering clamping, it can be ensured that the material is accurately placed in the processing position, and the processing accuracy is improved. The first clamping block and the second clamping block adopt a fan-shaped structure design, and two small fan-shaped third clamping blocks are rotatably connected to the inner side of the end. This design allows the first clamping block to rotate to a certain extent when clamping the material, so as to adapt to materials of different shapes. The rotation angle and force of the small fan-shaped first clamping block and the second clamping block can be accurately controlled by the shape of the material, and can handle a wider range of materials, thereby improving the versatility and adaptability of the clamp. There is no need to design a special clamp for each material of different shapes, which reduces the cost and complexity of material preparation.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A fixture for a CNC machine tool, comprising a fixed plate, and also comprising a clamping assembly arranged outside the end of the fixed plate;

[0008] A mounting frame fixedly connected to the lower surface of the fixing plate;

[0009] A motor, mounted on the lower surface of the mounting frame;

[0010] A connecting plate, fixedly connected to the outer side of the main shaft of the motor;

[0011] A connecting rod, rotatably connected to the upper surface of the connecting plate;

[0012] The sliding block is rotatably connected to the upper surface of the end of the connecting rod, and the sliding block is slidably connected to the inner side of the end of the fixed plate.

[0013] As a preferred clamp for CNC machine tools of the utility model, sliding grooves are provided on the inner sides of both ends of the sliding block, and two limit sliding blocks are fixedly connected to the inner side of the through groove provided at the end of the fixed plate, and the inner wall surface of the sliding groove is slidably connected to the outer side of the end of the limit sliding block.

[0014] As a preferred clamp for a CNC machine tool of the utility model, the lower surface of the sliding groove is rotatably connected to a first clamping block, and the first clamping block is an arc-shaped structure.

[0015] As a preferred clamp for a numerically controlled machine tool of the utility model, two second clamping blocks are rotatably connected to the inner side of the end of the first clamping block.

[0016] As a preferred clamp for a CNC machine tool of the utility model, a first sliding bar is fixedly connected to the outer side of the end of the second clamping block, and the second clamping block is rotatably connected to the first clamping block through the first sliding bar.

[0017] As a preferred clamp for a CNC machine tool of the utility model, a third clamping block is rotatably connected to the inner side of the end of the second clamping block, and the third clamping block is rotatably connected to the second clamping block via a second sliding bar.

[0018] As a preferred embodiment of the clamp for a numerically controlled machine tool of the utility model, a clamping groove is provided on the inner side of the end of the third clamping block.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a method having the following beneficial effects:

[0021] 1. A clamping assembly is added to the present application. Through the design of a connecting disk and a connecting rod, the four sliding blocks can move synchronously toward the middle. This design ensures that the positions and speeds of the four sliding blocks remain consistent when moving, thereby realizing the centering clamping function. Centering clamping can ensure that the material is accurately placed in the center of the fixed disk, which is especially important for materials that require high-precision processing. Through centering clamping, it can be ensured that the material is accurately placed in the processing position, thereby improving the processing accuracy. The first clamping block and the second clamping block adopt a fan-shaped structure design, and two small fan-shaped third clamping blocks are rotatably connected to the inner side of their ends. This design allows the first clamping block to rotate to a certain extent when clamping the material, thereby adapting to materials of different shapes. The rotation angle and force of the small fan-shaped first clamping block and the second clamping block can be precisely controlled by the shape of the material, and can handle a wider variety of materials, thereby improving the versatility and adaptability of the clamp. There is no need to design a special clamp for each material of different shapes, thereby reducing the cost and complexity of material preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the mounting frame and the motor in the utility model;

[0024] Figure 3 It is a structural schematic diagram of the connecting rod and the sliding block in the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the first clamping block and the second clamping block in the utility model;

[0026] Figure 5 It is a schematic diagram of the structure of the third clamping block and the clamping groove in the utility model.

[0027] In the figure:

[0028] 1. Fixed plate;

[0029] 2. Clamping assembly; 21. Mounting frame; 22. Motor; 23. Connecting plate; 24. Connecting rod; 25. Sliding block; 26. Sliding groove; 27. First clamping block; 28. Limiting slider; 29. ​​Second clamping block; 210. First sliding bar; 211. Third clamping block; 212. Second sliding bar; 213. Clamping groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0032] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 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 specific circumstances.

[0033] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0034] like Figure 1 As shown;

[0035] A fixture for a numerically controlled machine tool comprises a fixing plate 1.

[0036] In this implementation scheme: the fixture for CNC machine tools is a device used to fix, position and support workpieces on CNC machine tools. The fixture for CNC machine tools is an indispensable and important auxiliary equipment in CNC processing. Through its unique structure and design, it firmly fixes the workpiece on the machine tool to ensure the stability and precision of the workpiece during the processing. However, the traditional fixture only clamps through two clamping blocks, and thus lacks the centering function. Due to the lack of centering clamping function, the material may not be accurately centered during the clamping process, resulting in a decrease in processing accuracy. The lack of accuracy will not only affect the processing quality, but may also increase subsequent calibration and correction work, thereby increasing production costs and time. Traditional fixtures are often designed for materials of specific shapes and sizes. For materials of different shapes and sizes, different fixtures need to be replaced or complex adjustments need to be made, which reduces the adaptability of the fixture. This low adaptability leads to the need to frequently replace fixtures when processing multiple materials, which increases downtime and operation complexity and reduces production efficiency. In order to solve this technical problem, a clamping component 2 is added on this basis.

[0037] More specifically:

[0038] like Figures 1 to 5 As shown:

[0039] In combination with the above content: the mounting frame 21 is fixedly connected to the lower surface of the fixed disk 1, the motor 22 is installed on the lower surface of the mounting frame 21, the connecting disk 23 is fixedly connected to the outer side of the main shaft of the motor 22, the connecting rod 24 is rotatably connected to the upper surface of the connecting disk 23, the sliding block 25 is rotatably connected to the upper surface of the end of the connecting rod 24, the sliding block 25 is slidably connected to the inner side of the end of the fixed disk 1, and the inner sides of both ends of the sliding block 25 are provided with sliding grooves 26, and the inner side of the through groove provided at the end of the fixed disk 1 is fixedly connected with two limit sliders 28, and the inner wall surface of the sliding groove 26 is connected to the limit slider 2 The outer side of the end of 8 is slidably connected, and the lower surface of the sliding groove 26 is rotatably connected with the first clamping block 27, the first clamping block 27 is an arc-shaped structure, and the inner side of the end of the first clamping block 27 is rotatably connected with two second clamping blocks 29, the outer side of the end of the second clamping block 29 is fixedly connected with the first sliding bar 210, and the second clamping block 29 is rotatably connected to the first clamping block 27 through the first sliding bar 210, and the inner side of the end of the second clamping block 29 is rotatably connected with the third clamping block 211, and the third clamping block 211 is rotatably connected to the second clamping block 29 through the second sliding bar 212.

[0040] In this embodiment: when the user uses the device, the device can be fixed inside the CNC machine tool and connected to the electrical system. At this time, the user can place the material to be clamped on the upper surface of the fixed disk 1. At this time, the user can start the motor 22, and the motor 22 drives the connecting disk 23 fixedly connected to the outer side of the main shaft to rotate, and then drives the connecting rod 24 on the upper surface to rotate through the connecting disk 23. The sliding block 25 can be pulled by the connecting rod 24 to slide inside the through groove opened at the end of the fixed disk 1. At the same time, the first clamping block 27 contacts the sliding groove 26 to limit the position of the sliding block 25. When several sliding blocks 25 slide toward the middle, when the first clamping block 27 on the upper surface of the sliding block 25 When it contacts one side of the material, it will drive the first clamping block 27 to rotate to a certain extent. At the same time, the second clamping block 29 inside the ends of the two first clamping blocks 27 will rotate to a certain extent to match the shape of the material, further increasing the fixation stability of the material. At the same time, as the first clamping block 27 is clamped toward the middle, the two third clamping blocks 211 inside the ends of the second clamping block 29 will be driven to rotate to a certain extent. At the same time, the first sliding bar 210 and the second sliding bar 212 can respectively limit the positions of the second clamping block 29 and the third clamping block 211, so that the material can be adaptively fixed. At the same time, after the user has finished processing the material, the user can start the motor 22 again to allow the motor 22 to drive The connecting disk 23 is reversed, and then the connecting rod 24 on its upper surface is driven to rotate in the opposite direction through the connecting disk 23, and then the sliding block 25 is pushed outward through the connecting rod 24, and at the same time, the first clamping block 27 on the upper surface of the sliding block 25 is driven to move outward. At this time, the first clamping block 27 loses the clamping force of the material. At this time, the user can take the material out from the upper surface of the fixed disk 1, that is, the fixed processing function of the material is completed. Through the design of the connecting disk 23 and the connecting rod 24, the four sliding blocks 25 can move synchronously toward the middle. This design ensures that the position and speed of the four sliding blocks 25 remain consistent when moving, thereby realizing the centering clamping function. The centering clamping can ensure that the material is accurately placed in the center of the fixed disk 1, which is very useful for materials that need to be processed. The materials that are to be processed with high precision are particularly important. Through centrifugal clamping, it can be ensured that the materials are accurately placed in the processing position to improve the processing accuracy. The first clamping block 27 and the second clamping block 29 adopt a fan-shaped structure design, and two small fan-shaped third clamping blocks 211 are rotatably connected to the inner side of their ends. This design allows the first clamping block 27 to rotate to a certain extent when clamping the material, so as to adapt to materials of different shapes. The rotation angle and force of the small fan-shaped first clamping block 27 and the second clamping block 29 can be precisely controlled by the shape of the material, and can handle a wider variety of materials, thereby improving the versatility and adaptability of the clamp. There is no need to design a special clamp for each material of different shapes, thereby reducing the cost and complexity of material preparation.

[0041] Going further:

[0042] In an optional embodiment, the connecting rod 24 is an L-shaped structure.

[0043] In this embodiment: the L-shaped connecting rod 24 has good structural stability and can withstand large forces and torques, ensuring the stability and reliability of the sliding block 25 during movement. The L-shaped connecting rod 24 can effectively transfer power from one end to the other end, control the moving distance and speed of the clamping block, and achieve precise centering clamping. Compared with other complex connecting rod structures, the L-shaped connecting rod 24 has a simple structure and is easy to process and manufacture. At the same time, it also achieves lightweight components and reduces material waste.

[0044] Going further:

[0045] In an optional embodiment, a clamping groove 213 is formed on the inner side of the end of the third clamping block 211 .

[0046] In this embodiment: the clamping groove 213 is designed so that the third clamping block 211 can provide a more stable clamping force when clamping materials, ensuring that the materials are firmly fixed on the clamp to prevent displacement or vibration during processing. The clamping groove 213 can be used to install other auxiliary clamps or clamp chucks to increase the clamping range and adaptability of the third clamping block 211, so that the third clamping block 211 can clamp more materials of different shapes and sizes. The design of the clamping groove 213 makes it easier and faster for the third clamping block 211 to clamp and disassemble materials, thereby improving work efficiency.

[0047] Working principle: When using the device, the user can fix the device inside the CNC machine tool and connect the device to the electrical system. At this time, the user can place the material to be clamped on the upper surface of the fixed disk 1. At this time, the user can start the motor 22, and the motor 22 drives the connecting disk 23 fixedly connected to the outer side of its main shaft to rotate, and then drives the connecting rod 24 on its upper surface to rotate through the connecting disk 23. The sliding block 25 can be pulled by the connecting rod 24 to slide inside the through groove opened at the end of the fixed disk 1. At the same time, the first clamping block 27 contacts the sliding groove 26 to limit the position of the sliding block 25. When several sliding blocks 25 slide toward the middle, when the first clamping block 27 on the upper surface of the sliding block 25 contacts one side of the material. , which will drive the first clamping block 27 to rotate to a certain extent, and at the same time, the second clamping block 29 inside the ends of the two first clamping blocks 27 will rotate to a certain extent to match the shape of the material, further increasing the fixation stability of the material. At the same time, as the first clamping block 27 is clamped toward the middle, the two third clamping blocks 211 inside the ends of the second clamping block 29 will be driven to rotate to a certain extent. At the same time, the first sliding bar 210 and the second sliding bar 212 can respectively limit the positions of the second clamping block 29 and the third clamping block 211, so that the material can be adaptively fixed. At the same time, after the user has finished processing the material, the user can start the motor 22 again to make the motor 22 drive the connecting disk 23 to reverse, and then pass the connecting disk 23 drives the connecting rod 24 on its upper surface to rotate in the opposite direction, and then pushes the sliding block 25 outward through the connecting rod 24, and at the same time drives the first clamping block 27 on the upper surface of the sliding block 25 to move outward. At this time, the first clamping block 27 loses the clamping force of the material. At this time, the user can take the material out from the upper surface of the fixed disk 1, that is, the fixed processing function of the material is completed. Through the design of the connecting disk 23 and the connecting rod 24, the four sliding blocks 25 can move toward the middle synchronously. This design ensures that the positions and speeds of the four sliding blocks 25 are consistent when moving, thereby realizing the centering clamping function. The centering clamping can ensure that the material is accurately placed in the center of the fixed disk 1, which is particularly important for materials that need to be processed with high precision. Through the centering clamping, In order to ensure that the material is accurately placed at the processing position and improve the processing accuracy, the first clamping block 27 and the second clamping block 29 adopt a fan-shaped structure design, and two small fan-shaped third clamping blocks 211 are rotatably connected to the inner side of their ends. This design allows the first clamping block 27 to rotate to a certain extent when clamping the material, so as to adapt to materials of different shapes. The rotation angle and force of the small fan-shaped first clamping block 27 and the second clamping block 29 can be accurately controlled by the shape of the material, and can handle a wider variety of materials, thereby improving the versatility and adaptability of the clamp. There is no need to design a special clamp for each material of different shapes, which reduces the cost and complexity of material preparation. The L-shaped connecting rod 24 has good structural stability and can withstand large forces and torques.To ensure the stability and reliability of the sliding block 25 during movement, the L-shaped connecting rod 24 can effectively transmit power from one end to the other end, control the moving distance and speed of the clamping block, and achieve precise centering clamping. Compared with other complex connecting rod structures, the L-shaped connecting rod 24 has a simple structure and is easy to process and manufacture. It also achieves lightweight components and reduces material waste. The clamping groove 213 design enables the third clamping block 211 to provide a more stable clamping force when clamping materials, ensuring that the materials are firmly fixed on the clamp to prevent displacement or vibration during processing. The clamping groove 213 can be used to install other auxiliary clamps or clamp chucks to increase the clamping range and adaptability of the third clamping block 211, so that the third clamping block 211 can clamp more materials of different shapes and sizes. The clamping groove 213 design makes it more convenient and quick for the third clamping block 211 to clamp and disassemble materials, thereby improving work efficiency.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations 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 one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0050] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0051] 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 fixture for a numerically controlled machine tool, comprising a fixed plate (1), characterized in that: It also includes a clamping assembly (2) arranged outside the end of the fixing plate (1); A mounting frame (21) fixedly connected to the lower surface of the fixing plate (1); A motor (22) mounted on the lower surface of the mounting frame (21); A connecting plate (23) fixedly connected to the outer side of the main shaft of the motor (22); A connecting rod (24) rotatably connected to the upper surface of the connecting plate (23); The sliding block (25) is rotatably connected to the upper surface of the end of the connecting rod (24), and the sliding block (25) is slidably connected to the inner side of the end of the fixed plate (1).

2. The fixture for CNC machine tools according to claim 1, characterized in that: Sliding grooves (26) are provided on the inner sides of both ends of the sliding block (25); two limiting sliding blocks (28) are fixedly connected to the inner sides of the through grooves provided on the ends of the fixed plate (1); and the inner wall surfaces of the sliding grooves (26) are slidably connected to the outer sides of the ends of the limiting sliding blocks (28).

3. The fixture for CNC machine tools according to claim 2, characterized in that: The lower surface of the sliding groove (26) is rotatably connected to a first clamping block (27), and the first clamping block (27) is an arc-shaped structure.

4. The fixture for CNC machine tools according to claim 3, characterized in that: Two second clamping blocks (29) are rotatably connected to the inner side of the end of the first clamping block (27).

5. The fixture for CNC machine tools according to claim 4, characterized in that: A first sliding bar (210) is fixedly connected to the outer side of the end of the second clamping block (29), and the second clamping block (29) is rotatably connected to the first clamping block (27) via the first sliding bar (210).

6. The fixture for CNC machine tools according to claim 5, characterized in that: The inner side of the end of the second clamping block (29) is rotatably connected to a third clamping block (211), and the third clamping block (211) is rotatably connected to the second clamping block (29) via a second sliding bar (212).

7. The fixture for CNC machine tools according to claim 6, characterized in that: A clamping groove (213) is provided on the inner side of the end of the third clamping block (211).

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