Numerical control milling machine fixture
By designing a CNC milling machine fixture with a detachable C-shaped fixing block and an arc-shaped plate structure, combined with cylinder drive, the problem that existing fixtures cannot clamp workpieces of multiple shapes at the same time has been solved, realizing rapid clamping and processing and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-24
AI Technical Summary
Existing CNC milling machine fixtures can only clamp and process workpieces of a single shape, and cannot clamp workpieces of multiple shapes at the same time, which requires operators to frequently change fixtures and increases working time.
A CNC milling machine fixture was designed, which adopts a detachable C-shaped fixing block and an arc plate structure, combined with a cylinder-driven C-shaped moving block, to enable multiple fixtures to clamp workpieces of different shapes at the same time. The workpieces are quickly clamped and released by slide rail limiting and cylinder driving.
It enables rapid clamping and processing of workpieces of various shapes, reduces fixture change time, and improves work efficiency.
Smart Images
Figure CN224027011U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of numerical control milling machine processing, specifically relates to a numerical control milling machine fixture. BACKGROUND
[0002] The milling machine fixture is one of the most commonly used fixtures for machining parts. It is mainly composed of a positioning device, a clamping device, a fixture body, a connecting element, and a tool setting element. During milling, the cutting force is large, and the cutting is intermittent, resulting in large vibration. Therefore, the clamping force of the milling machine fixture is required to be large, and the rigidity and strength of the fixture are required to be high.
[0003] The existing numerical control fixture is divided into a chuck, a T-shaped workbench, a T-shaped block, an EROWA fixture, a tiger mouth clamp, a magnetic platform, a pneumatic cylinder fixture, and a dividing head. However, the most commonly used numerical control milling machine fixture in actual operation is the pneumatic cylinder fixture. However, the existing pneumatic cylinder fixture can only clamp and process single-shaped workpieces. When processing another type of workpiece, the fixture needs to be replaced. Moreover, the pneumatic cylinder fixture cannot clamp and process multiple types of workpieces simultaneously, which increases the working time of the workers. SUMMARY
[0004] To solve the above problems, that is, the existing fixture can only clamp and process single-shaped workpieces, the utility model provides a numerical control milling machine fixture, which comprises a base, a C-shaped fixed block fixedly installed on the base, an arc-shaped plate detachably connected to the C-shaped fixed block, a C-shaped moving block also detachably connected to the arc-shaped plate, and a driving device connected to one side of the C-shaped moving block away from the C-shaped fixed block.
[0005] Through the detachable arc-shaped plate, the fixture can fix more types of workpieces, thereby reducing the time for replacing the fixture.
[0006] The utility model further provides that the driving device is a pneumatic cylinder, a cavity is formed in the base, the pneumatic cylinder is installed in the cavity, and the pneumatic cylinder is detachably connected to the C-shaped moving block through a through hole.
[0007] Through the above technical scheme, the opening of the pneumatic cylinder can make the pneumatic cylinder quickly push the C-shaped moving block to move towards the C-shaped fixed block, thereby quickly clamping the workpiece. The closing of the pneumatic cylinder can make the pneumatic cylinder drive the C-shaped moving block to return to the position before moving.
[0008] The further setting of the utility model discloses: the C-shaped moving block is inserted with the arc-shaped plate.
[0009] Through the above technical scheme, the connection between the C-shaped moving block and the arc-shaped plate is facilitated, and the time for replacing the clamp is reduced.
[0010] The further setting of the utility model discloses: the C-shaped fixed block is inserted with the arc-shaped plate.
[0011] Through the above technical scheme, the connection between the C-shaped moving block and the arc-shaped plate is facilitated, and the time for replacing the clamp is reduced.
[0012] The further setting of the utility model discloses: the base is provided with slide rails, and the C-shaped moving block and the arc-shaped plate slide back and forth on the slide rails.
[0013] Through the above technical scheme, the C-shaped moving block can be further limited, the misplacement of the C-shaped moving block when clamping the workpiece is prevented, and deviation is further generated.
[0014] The further setting of the utility model discloses: the base is provided with not less than two sets of clamps.
[0015] Through the above technical scheme, multiple sets of clamps can clamp multiple shapes of workpieces simultaneously, and different shapes of workpieces can be machined simultaneously to reduce the clamping time.
[0016] The further setting of the utility model discloses: the base is provided with fixing holes.
[0017] Through the above technical scheme, when the milling machine processes the workpiece, the displacement of the clamp is prevented, and the machining error is further caused.
[0018] The utility model discloses the beneficial effect is:
[0019] 1, through the detachable connection of the C-shaped moving block or the C-shaped fixed block and the arc-shaped plate, different shapes of workpieces can be clamped to reduce the time for replacing the clamp and improve the work efficiency.
[0020] 2, multiple sets of clamps can clamp different shapes of workpieces simultaneously, and different shapes of workpieces can be machined simultaneously to reduce the time for clamping the workpiece and replacing the clamp. DRAWINGS
[0021] Figure 1 The utility model discloses a perspective view.
[0022] Figure 2 The utility model discloses a top view.
[0023] Figure 3An assembly drawing of the utility model is shown.
[0024] Figure 4 A partial exploded view of the utility model is shown.
[0025] Reference signs: 1, base; 2, C-shaped fixed block; 3, C-shaped moving block; 4, arc-shaped plate; 5, cavity; 6, air cylinder; 7, fixing hole; 8, square workpiece; 9, special-shaped workpiece; 10, circular workpiece; 11, slide rail; 12, connecting hole; 13, connecting shaft; 14, piston rod. DETAILED DESCRIPTION
[0026] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model and are not intended to limit the protection scope of the utility model.
[0027] The utility model proposes a numerical control milling machine clamp, including square base 1, four clamp groups are installed on base 1, the clamp group includes C-shaped fixed block 2, four C-shaped fixed blocks 2 are respectively welded and installed on the four corner positions on base 1, and every C-shaped fixed block 2 does not contact, and the opening of two C-shaped fixed blocks 2 in the same horizontal direction is oppositely arranged, and the connecting hole 12 (refer to the drawing) is arranged on both ends of the opening, and the slide rail 11 is arranged between the openings of two C-shaped fixed blocks 2 in the same horizontal direction, and four C-shaped moving blocks 3 same as C-shaped fixed block 2 are installed on slide rail 11, and the opening of C-shaped fixed block 2 and C-shaped moving block 3 is oppositely arranged, and the connecting hole 12 is also arranged on both ends of the opening of C-shaped moving block 3, and slide rail 11 limits C-shaped moving block 3, so that C-shaped moving block 3 can only slide back and forth in the direction of C-shaped fixed block 2 on slide rail 11. Figure 4
[0028] The rectangular cavity 5 is formed in base 1, the cavity 5 is located at the middle position of base 1 and divides two slide rails 11 into four slide rails 11, the height of cavity 5 is lower than the height of C-shaped fixed block 2, four air cylinders 6 are installed in cavity 5, and two air cylinders 6 in the same horizontal direction are oppositely arranged away from the one end of piston rod 14, the connecting mode of four air cylinders 6 is parallel connection (the connecting mode of air cylinder 6 is prior art, so the drawing in the specification is not shown in this application), and the one end of piston rod 14 on every air cylinder 6 is connected with the one end of every C-shaped moving block 3 away from the opening through the through hole in cavity 5, so as to drive C-shaped moving block 3 to slide back and forth in the direction of C-shaped fixed block 2 on slide rail 11, and the setting of cavity 5 can prevent the cutting chips in the machining process from falling into air cylinder 6, thereby affecting the air cylinder and facilitating the cleaning of cutting chips.
[0029] The base 1 is also provided with two fixing holes 7. The fixing holes 7 are located on both sides of the cavity 5 and close to both ends of the base 1. The CNC milling machine fixture can be fixed on the worktable by the cooperation between the screw and the bolt or the screw and the T-block to prevent displacement during processing.
[0030] Work style:
[0031] Scenario 1: Refer to the instruction manual appendix Figure 3 In the CNC milling machine fixture, the square workpiece 8 is clamped at the lower right corner of the base 1. An arc plate 4, which is adapted to the C-shaped fixing block 2, is installed at the opening of the C-shaped fixing block 2. Connecting shafts 13 are provided at both ends of the arc plate 4. The connecting shafts 13 are inserted into the connecting holes 12 to limit the arc plate 4 in the up, down, left, and right directions to prevent displacement during clamping and processing of the workpiece. When the arc plate 4 needs to be disassembled, it can be disassembled along the horizontal direction of the slide rail 11. An arc plate 4 is also installed at the opening of the C-shaped moving block 3. It is also limited in the up, down, left, and right directions of the arc plate 4 by the insertion of the connecting shaft 13 into the connecting hole 12 to prevent displacement during clamping and processing of the workpiece. When the arc plate 4 needs to be disassembled, it can be disassembled along the horizontal direction of the slide rail 11. The end of the arc plate 4 facing away from the arc is set as a plane to clamp the workpiece to be clamped with flat sides.
[0032] Scenario 2: Refer to the instruction manual appendix Figure 3 In the case of a CNC milling machine fixture clamping a workpiece, in the fixture group holding the irregularly shaped workpiece 9 at the upper right corner of the base 1, the C-shaped fixing block 2 does not have an arc plate 4 installed to clamp workpieces with one side being round or arc-shaped. The C-shaped moving block 3 has an arc plate 4 installed to clamp workpieces with one side being flat. For such irregularly shaped workpieces 9, as long as one of the C-shaped moving block 3 or the C-shaped fixing block 2 has an arc plate 4 installed, the other does not need to have an arc plate 4 installed to clamp and hold the workpiece.
[0033] Scenario 3: Refer to the instruction manual appendix Figure 3 In the image, the CNC milling machine fixture is used to clamp a workpiece. The lower left corner of the base 1 is used to clamp a circular workpiece 10. In the fixture group, the C-shaped fixing block 2 is not equipped with the arc plate 4, and the C-shaped moving block 3 is not equipped with the arc plate 4. It is used to clamp workpieces with circular or arc-shaped sides.
[0034] Workflow: The screw connects to the T-block on the worktable through the fixing hole 7, fixing the base 1 to the worktable. Then refer to the instruction manual. Figure 3In the state when the workpiece is clamped, when multiple shapes of workpieces are machined simultaneously, whether the arc-shaped plate 4 is installed can be selected according to the shape of the workpiece, after each group of clamps is matched with a certain shape of workpiece, the workpiece to be machined is placed in the clamp group, the air cylinder 6 is opened, the piston rod 14 of the air cylinder 6 pushes each C-shaped moving block 3 to move in the direction of the C-shaped fixed block 2, and then the workpiece is quickly clamped and machined, after machining, the air cylinder 6 is closed, the piston rod 14 of the air cylinder 6 drives the C-shaped moving block 3 to return to the position when the workpiece is not clamped, and the machined workpiece is taken out.
[0035] In summary, through the detachable connection of the C-shaped moving block 3 or the C-shaped fixed block 2 and the arc-shaped plate, workpieces of different shapes can be machined, so as to reduce the time for replacing the clamps and improve the work efficiency.
[0036] Multiple groups of clamps can clamp workpieces of different shapes simultaneously, and then workpieces of different shapes can be machined simultaneously, so as to reduce the time for clamping the workpieces and the time for replacing the clamps.
[0037] Although the utility model has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model, and in particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.
[0038] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0039] In addition, it also needs to be explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0040] The term "comprising" or any other similar word is intended to encompass the inclusion of one or more elements, steps, or components, but not to the exclusion of any other elements, steps, or components. The term "comprising" therefore indicates that the inclusion of one or more elements, steps, or components is not a limitation on the meaning of "comprising."
[0041] Thus far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the drawings, but those skilled in the art will readily understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the relevant technical features without deviating from the principles of the present application, and the technical solutions after these changes or replacements will all fall within the scope of protection of the present application.
Claims
1. A CNC milling machine fixture, comprising a base (1), characterized in that: A C-shaped fixing block (2) is fixedly installed on the base (1). The C-shaped fixing block (2) is detachably connected to an arc plate (4) that is adapted to the C-shaped fixing block (2). A C-shaped moving block (3) is also installed on the base (1). The C-shaped moving block (3) is also detachably connected to the arc plate (4). The height of the arc plate (4) is higher than that of the C-shaped fixing block (2) and the C-shaped moving block (3). The openings of the C-shaped fixing block (2) and the C-shaped moving block (3) are opposite to each other. The C-shaped moving block (3) slides back and forth towards the C-shaped fixing block (2). A driving device is connected to the side of the C-shaped moving block (3) that is away from the C-shaped fixing block (2).
2. The CNC milling machine fixture according to claim 1, characterized in that: The driving device is a cylinder (6), and a cavity (5) is provided on the base (1). The cylinder (6) is installed in the cavity (5) and is detachably connected to the C-shaped moving block (3) through a through hole.
3. The CNC milling machine fixture according to claim 1, characterized in that: The C-shaped moving block (3) and the arc-shaped plate (4) are connected by an insertion.
4. The CNC milling machine fixture according to claim 1, characterized in that: The C-shaped fixing block (2) and the arc-shaped plate (4) are connected by an insertion.
5. The CNC milling machine fixture according to claim 1, characterized in that: The base (1) is provided with a slide rail (11), and the C-shaped moving block (3) and the arc plate (4) slide back and forth on the slide rail (11).
6. The CNC milling machine fixture according to claim 2, characterized in that: The base (1) is equipped with at least two sets of clamps.
7. The CNC milling machine fixture according to claim 1, characterized in that: The base (1) has a fixing hole (7).