A special-shaped CNC machining fixture

Abstract

This utility model relates to the field of CNC fixture technology, and in particular to a CNC machining fixture for irregular shapes, including a base plate, a pad, and a chuck. The irregular part is placed vertically on the top of the base plate, and the bottom of the irregular part is installed in the chuck groove. This device has a detachable structure. The chuck is installed between two buckle plates. The pad and buckle plates are assembled and installed by assembly studs. The buffer spring is placed on the outside of the column rod, and the sleeve plate is slidably placed on the outside of the column rod. The strip plate and the groove are slidably set. The screws are adjusted to thread the inside of the top of the cylinder cover and the inside of the top of the column rod. The bottom of the sleeve plate compresses the buffer spring, so that the upper plate and the lower plate are in close contact with the irregular part, which is used to limit the assembly of the irregular part. Through the above settings, the fixture device plays a stable limiting role for the irregular part, and the fixture device has an easy assembly structure, which facilitates the periodic maintenance and replacement of the internal components of the fixture device.

Description

Technical Field

[0001] This utility model relates to the field of CNC fixture technology, specifically a non-standard CNC machining fixture. Background Technology

[0002] Irregularly shaped parts are materials whose shapes differ from those of conventional parts. During the processing of irregularly shaped parts, special fixtures are needed to assist in limiting the movement of the irregularly shaped parts, thereby ensuring the safety and stability of subsequent processing. Take the CNC machining fixture used for milling holes in plate-type irregularly shaped workpieces as an example.

[0003] In current CNC machining, some irregular CNC machining fixtures are not convenient for stable positioning of irregular parts, and the fixtures are not convenient for assembly and regular maintenance and replacement of internal components. Therefore, an irregular CNC machining fixture is proposed to address the above problems. Utility Model Content

[0004] In view of the aforementioned problems, this application proposes a non-standard CNC machining fixture to solve the problems that some non-standard CNC machining fixtures have fixture devices that are not convenient for stably limiting non-standard parts, and that the fixture devices are not convenient for regular maintenance and replacement of internal components in order to facilitate assembly.

[0005] This application provides a CNC machining fixture for irregular shapes, including: a base plate for mounting irregularly shaped parts, a pad fixedly disposed on the top of the base plate, and a chuck mounted on the top of the pad;

[0006] The top of the chuck is fixedly connected to a column rod, and a sleeve is slidably sleeved on the outside of the column rod. The column rod is limited by cooperating with a strip plate fixed inside the sleeve through a groove.

[0007] A buffer spring is provided between the bottom of the sleeve and the top of the chuck, and the top of the sleeve is threaded to the top of the rod via an adjusting stud.

[0008] The outer side of the sleeve is fixed plate, and the plate is connected to the clamping assembly of the upper plate and the lower plate through the connecting plate;

[0009] The buckle plate is detachably connected to the washer and chuck via mounting studs.

[0010] Optionally, the top of the substrate is provided with slots at intervals for auxiliary positioning of irregularly shaped parts.

[0011] Optionally, the substrate has through holes inside to reduce the weight of the fixture.

[0012] Optionally, the through hole is a square hole.

[0013] Optionally, the inner top of the pad and the inner bottom of the buckle are threadedly assembled with mounting studs, and the chuck is rotatably connected to the inner wall of the buckle.

[0014] Optionally, a groove is provided on the outer side of the column rod, and the strip plate is slidably disposed with the groove.

[0015] Optionally, the positioning pin at the bottom of the irregular part is inserted into and connected to the slot.

[0016] Optionally, the upper plate and the lower plate are in contact with the irregularly shaped part.

[0017] Optionally, a cylindrical cover is also fixedly provided at the top of the sleeve, and the top of the cylindrical cover is threadedly connected to the top of the rod by an adjusting stud.

[0018] This application has the following advantages:

[0019] In the embodiments of this application, a base plate for mounting irregularly shaped parts is used. A pad is fixedly disposed on the top of the base plate, and a chuck is mounted on the top of the pad. A column rod is fixedly connected to the top of the chuck, and a sleeve plate is slidably sleeved on the outside of the column rod. The column rod is limited by cooperating with a strip plate fixed inside the sleeve plate through a groove. A buffer spring is provided between the bottom of the sleeve plate and the top of the chuck. The top of the sleeve plate is threadedly connected to the top of the column rod through an adjusting stud. A plate is fixed on the outside of the sleeve plate, and the plate is connected to the clamping assembly of the upper and lower plates through a connecting plate. A buckle plate is detachably connected to the pad and the chuck through an assembly stud. The chuck is installed between the two snap plates. The washers and snap plates are assembled using assembly studs. The buffer spring is placed on the outside of the column rod, and the sleeve is slidably placed on the outside of the column rod. The strip plate and the groove are slidably set. The screws are adjusted to thread the inside of the top of the cylinder cover and the inside of the top of the column rod. The bottom of the sleeve presses the buffer spring, so that the upper and lower plates are in close contact with the irregular part, which is used to limit the assembly of the irregular part. Through the above settings, the clamping device plays a stable limiting role for the irregular part. Moreover, the clamping device has an easy assembly structure, which facilitates the regular maintenance and replacement of the internal components of the clamping device. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a non-standard CNC machining fixture provided in one embodiment of this application;

[0022] Figure 2 yes Figure 1 A magnified structural diagram at point A;

[0023] Figure 3 This is a schematic diagram of the chuck, latch plate, and assembly stud of a non-standard CNC machining fixture provided in one embodiment of this application;

[0024] Figure 4 This is a cross-sectional schematic diagram of the chuck, column rod, sleeve, strip plate and cylinder cover of a special-shaped CNC machining fixture provided in an embodiment of this application;

[0025] Figure 5 This is a bottom schematic diagram of the upper plate of an irregularly shaped CNC machining fixture provided in one embodiment of this application;

[0026] Figure 6 This is a cross-sectional schematic diagram of an irregularly shaped part of an irregularly shaped CNC machining fixture provided in an embodiment of this application;

[0027] Figure 7 yes Figure 6 A magnified structural diagram at point B;

[0028] Figure 8 This is a schematic diagram of the structure of an irregularly shaped part of an irregularly shaped CNC machining fixture according to an embodiment of this application;

[0029] Figure 9 This is a bottom schematic diagram of an irregularly shaped part of an irregularly shaped CNC machining fixture provided in one embodiment of this application;

[0030] Figure 10 This is a schematic diagram showing the distribution of through holes and slots in a non-standard CNC machining fixture according to an embodiment of this application.

[0031] In the diagram: 1. Base plate; 2. Washer plate; 3. Chuck; 4. Buckle plate; 5. Assembly stud; 6. Column rod; 7. Sleeve plate; 8. Strip plate; 9. Groove; 10. Buffer spring; 11. Cylinder cover; 12. Adjusting stud; 13. Disc plate; 14. Connecting plate; 15. Upper plate; 16. Lower plate; 17. Irregular part; 18. Through hole; 19. Slot. Detailed Implementation

[0032] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] Reference Figures 1 to 10This application provides a CNC machining fixture for irregular shapes, including: a base plate 1 for mounting irregular parts 17; a pad 2 fixedly mounted on the top of the base plate 1; a chuck 3 mounted on the top of the pad 2; a column rod 6 fixedly connected to the top of the chuck 3; a sleeve plate 7 slidably sleeved on the outside of the column rod 6; the column rod 6 is limited by a groove 9 cooperating with a strip plate 8 fixed inside the sleeve plate 7; a buffer spring 10 is provided between the bottom of the sleeve plate 7 and the top of the chuck 3; the top of the sleeve plate 7 is threadedly connected to the top of the column rod 6 by an adjusting stud 12; a plate 13 is fixedly mounted on the outside of the sleeve plate 7; the plate 13 is connected to a clamping assembly of an upper plate 15 and a lower plate 16 by a connecting plate 14; and a retaining plate 4 is detachably connected to the pad 2 and the chuck 3 by an assembly stud 5. The threaded connection of the pad 2, the chuck 3, and the retaining plate 4 with the assembly stud 5 enables quick assembly and disassembly of the fixture assembly, facilitating the replacement of worn parts (such as the buffer spring 10) and reducing maintenance difficulty. The sliding fit between the sleeve 7 and the column rod 6 (strip plate 8 and groove 9) combined with the buffer spring 10 adaptively adjusts the clamping force when clamping irregular parts, reducing processing vibration and improving stability and adaptive limiting ability.

[0034] Furthermore, the top of the substrate 1 is provided with spaced slots 19 for auxiliary positioning of the irregular part 17, wherein the positioning pin at the bottom of the irregular part 17 is inserted into and connected to the slots 19. The edges of the irregular part 17 are fixed by the slots 19 on the substrate 1, thereby performing auxiliary positioning. During the rough machining stage, it can withstand a large cutting force and prevent workpiece displacement.

[0035] The substrate 1 has a through hole 18 inside to reduce the weight of the clamp, and the through hole 18 is preferably a square hole. The opening in the substrate 1 can be used to reduce weight or assist assembly. The top of the pad 2 and the bottom of the buckle 4 are threadedly assembled with the mounting stud 5, and the chuck 3 is rotatably connected to the inner wall of the buckle 4. The outer side of the column rod 6 is provided with a groove 9, and the strip plate 8 is slidably disposed with the groove 9. The upper plate 15 and the lower plate 16 are in close contact with the irregular part 17. The upper plate 15 and the lower plate 16 form a multi-point clamping through the disc plate 13 and the connecting plate 14, which can adapt to the complex contour of the irregular part and avoid deformation caused by uneven clamping force.

[0036] The top of the sleeve 7 is also fixedly provided with a cylinder cover 11, and the top of the cylinder cover 11 is threadedly connected to the top of the column rod 6 through an adjusting stud 12.

[0037] For example, when machining irregularly shaped titanium alloy parts with curved surfaces, the fixture adjusts the height of the sleeve 7 by adjusting the stud 12 to accommodate differences in workpiece height. The buffer spring 10 absorbs vibrations caused by changes in cutting force, and the linkage clamping of the connecting plate 14 and the lower plate 16 prevents workpiece displacement. The modular structure allows for quick replacement of worn clips 4 or discs 13, reducing downtime for maintenance.

[0038] As an example, a non-standard CNC machining fixture includes: a base plate 1, a pad 2, and a chuck 3. The pad 2 is fixedly mounted on the top of the base plate 1, and the chuck 3 is mounted on the top of the pad 2. The top of the pad 2, the outer side of the chuck 3, and a retaining plate 4 are installed together. The top interior of the pad 2 and the bottom interior of the retaining plate 4 are threadedly fitted with mounting studs 5. A column rod 6 is fixedly mounted on the top of the chuck 3, and the outer side of the column rod 6 slides within a sleeve 7. A strip plate 8 is fixedly mounted inside the sleeve 7. A groove 9 is provided on the outer side of the column rod 6. The top of the chuck 3 and the bottom of the sleeve 7... A buffer spring 10 is installed in the middle. A cylinder cover 11 is fixedly installed at the top of the sleeve 7. The inside of the top of the cylinder cover 11 and the inside of the top of the column rod 6 are threadedly assembled with the adjusting stud 12. A plate 13 is fixedly installed on the outside of the sleeve 7. A connecting plate 14 is fixedly installed on the outside of the plate 13. An upper plate 15 is fixedly installed at the end of the connecting plate 14 away from the plate 13. A lower plate 16 is fixedly installed at the bottom of the upper plate 15. A special-shaped part 17 is installed at the top of the base plate 1. A through hole 18 is provided inside the base plate 1. Slots 19 are distributed at intervals on the top of the base plate 1.

[0039] The chuck 3 and the inner wall of the buckle plate 4 are rotatably arranged. Through the above arrangement, the two symmetrically arranged buckle plates 4 form an assembly and rotation structure for the chuck 3. The strip plate 8 and the groove 9 are slidably arranged. Through the above arrangement, the groove 9 plays a role in vertically limiting the sliding of the sleeve plate 7, strip plate 8, cylinder cover 11, disc plate 13, connecting plate 14, upper plate 15 and lower plate 16.

[0040] The bottom of the irregular part 17 is installed in the slot 19. Through the above arrangement, the substrate 1 presses down and positions the irregular part 17.

[0041] The upper plate 15 and the lower plate 16 are in close contact with the irregular part 17. Through the above settings, the upper plate 15 and the lower plate 16 vertically squeeze and limit the irregular part 17.

[0042] This utility model provides a CNC machining fixture for irregularly shaped parts. The irregularly shaped part 17 is a plate-like irregularly shaped workpiece with four frame plates distributed on the top and four clamping plates distributed on the bottom. This device is a special fixture for assembling and limiting the irregularly shaped part 17. It is suitable for CNC milling machine processing and can perform milling hole processing on the central area of ​​the irregularly shaped part 17. The fixture device plays a role in stabilizing and limiting the irregularly shaped part 17. Moreover, the fixture device has an assembly structure that is easy to assemble, which facilitates the periodic maintenance and replacement of the internal components of the fixture device.

[0043] The irregular part 17 is placed vertically on top of the base plate 1, with its bottom installed in the slot 19. The top of the base plate 1 is in close contact with the irregular part 17. This device is a detachable structure. The chuck 3 is installed between the two buckle plates 4. The washer 2 and buckle plates 4 are assembled and installed using the mounting studs 5. After installation, the chuck 3 and buckle plates 4 are rotated. The buffer spring 10 is fitted onto the outside of the column rod 6 until the bottom of the buffer spring 10 is in close contact with the top of the chuck 3. The sleeve 7, strip plate 8, cylinder cover 11, and disc plate 1 are also installed. 3. The connecting plate 14, the upper plate 15, and the lower plate 16 are integrated components. The sleeve 7 is slidably placed on the outside of the column rod 6. The strip plate 8 and the groove 9 are slidably set. The above integrated components are rotatable structures, and the positions of the upper plate 15 and the lower plate 16 can be rotated and adjusted. The screw stud 12 is used to thread the inside of the top of the cylinder cover 11 and the inside of the top of the column rod 6. The bottom of the sleeve 7 compresses the buffer spring 10, so that the upper plate 15 and the lower plate 16 are in close contact with the irregular part 17, which is used to limit the assembly of the irregular part 17.

[0044] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0045] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0046] The above provides a detailed description of a non-standard CNC machining fixture provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A special-shaped CNC machining fixture, characterized in that, include: A base plate (1) for mounting irregular parts (17) has a pad (2) fixedly disposed on the top of the base plate (1) and a chuck (3) mounted on the top of the pad (2). The top of the chuck (3) is fixedly connected to the column rod (6), and the sleeve plate (7) is slidably sleeved on the outside of the column rod (6). The column rod (6) is limited by cooperating with the strip plate (8) fixed inside the sleeve plate (7) through the groove (9); A buffer spring (10) is provided between the bottom of the sleeve (7) and the top of the chuck (3), and the top of the sleeve (7) is threadedly connected to the top of the rod (6) through an adjusting stud (12); The outer side of the sleeve (7) is fixed with a plate (13), and the plate (13) is connected to the clamping assembly of the upper plate (15) and the lower plate (16) through a connecting plate (14); The buckle plate (4) is detachably connected to the washer (2) and the chuck (3) by means of mounting studs (5).

2. The irregular CNC machining fixture as described in claim 1, characterized in that: The top of the substrate (1) is spaced out with slots (19) for auxiliary positioning of irregular parts (17).

3. The irregular CNC machining fixture as described in claim 1, characterized in that: The substrate (1) has through holes (18) inside for reducing the weight of the fixture.

4. The irregular CNC machining fixture as described in claim 3, characterized in that: The through hole (18) is a square hole.

5. The irregular CNC machining fixture according to claim 1, characterized in that: The top interior of the pad (2) and the bottom interior of the buckle plate (4) are threadedly assembled with the mounting stud (5), and the chuck (3) is rotatably connected to the inner wall of the buckle plate (4).

6. The irregular CNC machining fixture according to claim 1, characterized in that: The column rod (6) is provided with a groove (9) on the outside, and the strip plate (8) is slidably disposed with the groove (9).

7. The irregular CNC machining fixture according to claim 2, characterized in that: The positioning pin at the bottom of the irregular part (17) is inserted into and connected to the slot (19).

8. The irregular CNC machining fixture according to claim 7, characterized in that: The upper plate (15), lower plate (16) and irregular part (17) are in contact with each other.

9. The irregular CNC machining fixture according to claim 1, characterized in that: The top of the sleeve (7) is also fixedly provided with a cylinder cover (11), and the top of the cylinder cover (11) is threadedly connected to the top of the column rod (6) by an adjusting stud (12).

Images