CN216371184U - A positioning fixture for CNC machining of high-precision parts - Google Patents

Abstract

The utility model belongs to the technical field of CNC machining, in particular to a positioning fixture for CNC machining of high-precision parts. A rotating disk and a splint, the surface of the base is fixedly connected with a mounting plate, the surface of the mounting plate is slidably connected with a processing table, and the surface of the processing table is provided with a threaded rod that drives the engaging block to slide on the surface of the processing table, The surface of the engaging block is rotatably connected with a push plate that drives the rotating disk to rotate. By setting the push plate, because the push plate and the engaging block are inclined, the push plate will exert a pulling force on the rotating disk through the sliding of the engaging block, so that the rotating disk starts to rotate clockwise, and then the rotating plate will drive the sliding rod to rotate together, because the sliding rod Embedded in the linear chute on the surface of the splint, the splint will slide toward the fixed plate on the surface of the processing table through the rotation of the slide bar, and then clamp the workpiece.

Description

A positioning fixture for CNC machining of high-precision parts

technical field

The utility model relates to the technical field of CNC machining, in particular to a positioning fixture for CNC machining of high-precision parts.

Background technique

CNC, also known as CNCCH or CNC machine tool, is an automatic machine tool controlled by a program. The control system can logically process programs with control codes or other symbolic instructions, and decode them through a computer, so that the machine tool can move and process parts. , Through tool cutting, the blank is processed into semi-finished finished parts, etc. Generally, CNC machining usually refers to precision machining, CNC machining lathes, CNC machining milling machines, CNC machining boring and milling machines, etc.

However, many CNC machining equipment does not have the function of fixing the workpiece when it is in use, resulting in displacement during processing, and the position of the workpiece cannot be adjusted. Therefore, a positioning method for CNC machining of high-precision parts is required. Jig.

Utility model content

The utility model proposes a positioning jig for CNC machining of high-precision parts, which solves the problem that many CNC machining equipments in the prior art do not have the function of fixing the machining parts when they are in use, which leads to the appearance of appearance during machining. Displacement, and the position of the workpiece cannot be adjusted.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

A positioning jig for CNC machining of high-precision parts, comprising a base, an engaging block, a rotating disk and a splint, the surface of the base is fixedly connected with a mounting plate, the surface of the mounting plate is slidably connected with a processing table, and the The surface of the processing table is provided with a threaded rod that drives the engaging block to slide on the surface of the processing table, the surface of the engaging block is rotatably connected with a push plate that drives the rotating disk to rotate, and the bottom of the rotating disk is fixedly connected with a rotating plate The bottom of the rotating plate is fixedly connected with a sliding rod that drives the splint to slide, the bottom of the processing table is fixedly connected with a force block, and the surface of the processing table is fixedly connected with a fixing plate.

Preferably, the surface of the base is provided with a hydraulic rod on the side of the mounting plate, and the output end of the hydraulic rod is provided with a slider, the surface of the slider is rotatably connected with a first movable plate, and the surface of the first movable plate is provided with a slider. A second movable plate is rotatably connected, and a push block is rotatably connected with the tail of the first movable plate and the second movable plate.

Preferably, the push plate is inclined with respect to the surface of the engagement block, and the push plate and the engagement block are parallel to each other.

Preferably, the connection point between the push plate and the rotating disk is deviated from the center of the rotating disk, and the length of the rotating plate is greater than the diameter of the rotating disk.

Preferably, the surface of the splint is provided with a linear chute, and the sliding rod is embedded in the chute on the surface of the splint and is slidably connected with it.

Preferably, the first movable plate and the second movable plate are cross-connected to each other, and the slider is arranged at the intersection of the first movable plate and the second movable plate.

Preferably, the push block and the force-receiving block are attached to each other, and the contact surfaces of the push block and the force-receiving block are inclined surfaces to each other.

In this utility model,

1. By setting the push plate, because the push plate and the engaging block are inclined, the push plate will exert a pulling force on the rotating disk through the sliding of the engaging block, so that the rotating disk starts to rotate clockwise, and then the rotating plate will drive the sliding rod to rotate together, because The slide bar is embedded in the linear chute on the surface of the splint, and the splint will slide toward the fixed plate on the surface of the processing table through the rotation of the slide bar, and then clamp the workpiece;

2. By setting the slider, because the slider is set at the junction of the first movable plate and the second movable plate, when the slider slides, the included angle of the two groups of movable plates will gradually become smaller, and then the two groups of movable plates will be driven. The push block slides toward the center point of the base, because the contact surface between the push block and the force block is inclined to each other. When the push block slides, it will exert a thrust on the force block, and then the force block will drive the processing table upward along the mounting plate. Slide for height adjustment.

Description of drawings

Fig. 1 is a top-view structural schematic diagram of a positioning fixture for CNC machining of high-precision parts proposed by the utility model;

FIG. 2 is a schematic diagram of the front structure of a positioning fixture for CNC machining of high-precision parts proposed by the utility model;

FIG. 3 is a schematic diagram of the rear view structure of a positioning fixture for CNC machining of high-precision parts proposed by the utility model;

FIG. 4 is a schematic partial structure diagram of a positioning fixture for CNC machining of high-precision parts proposed by the present invention.

In the figure: 1. Base; 2. Mounting plate; 3. Processing table; 4. Threaded rod; 5. Engagement block; 6. Push plate; 7. Rotating plate; 8. Rotating plate; ; 11, hydraulic rod; 12, slider; 13, the first movable plate; 14, the second movable plate; 15, push block; 16, force block; 17, fixed plate.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Referring to Figures 1-4, a positioning fixture for CNC machining of high-precision parts includes a base 1, an engaging block 5, a rotating disk 7 and a clamping plate 10. The surface of the base 1 is fixedly connected with a mounting plate 2. The surface of the processing table 3 is slidably connected with a threaded rod 4 that drives the engaging block 5 to slide on the surface of the processing table 3. The surface of the engaging block 5 is rotatably connected with a push plate 6 that drives the rotating disk 7 to rotate. The bottom of 7 is fixedly connected with a rotating plate 8, the bottom of the rotating plate 8 is fixedly connected with a slide bar 9 that drives the splint 10 to slide, the bottom of the processing table 3 is fixedly connected with a force block 16, and the surface of the processing table 3 is fixedly connected with a fixed plate 17.

Further, a hydraulic rod 11 is provided on the surface of the base 1 on the side of the mounting plate 2, and a slider 12 is provided at the output end of the hydraulic rod 11. The surface of the slider 12 is rotatably connected with a first movable plate 13, and the first movable A second movable plate 14 is rotatably connected to the surface of the plate 13 , and a push block 15 is rotatably connected to the tail of the first movable plate 13 and the second movable plate 14 .

Further, the push plate 6 is inclined with respect to the surface of the engagement block 5 , and the push plate 6 and the engagement block 5 are parallel to each other. When the threaded rod 4 is rotated, the threaded rod 4 will drive the engagement block 5 to slide on the surface of the processing table 3 , because the push plate 6 and the engagement block 5 are arranged at an inclination, and the push plate 6 will exert pressure on the rotary disk 7 through the sliding of the engagement block 5 . Pull, so that the rotating disk 7 starts to rotate clockwise.

Further, the connection point between the push plate 6 and the rotating disk 7 is deviated from the center of the rotating disk 7 , and the length of the rotating plate 8 is greater than the diameter of the rotating disk 7 . When the rotating plate 8 rotates, the sliding rod 9 can be driven to slide on the surface of the clamping plate 10 to apply power to the sliding of the clamping plate 10 .

Further, the surface of the splint 10 is provided with a linear chute, and the sliding rod 9 is embedded in the chute on the surface of the splint 10 and is slidably connected with it. Because the sliding rod 9 is embedded in the linear chute on the surface of the clamping plate 10 , the clamping plate 10 will slide toward the fixing plate 17 on the surface of the processing table 3 through the rotation of the sliding rod 9 , and then clamp the workpiece.

Further, the first movable plate 13 and the second movable plate 14 are cross-connected to each other, and the slider 12 is arranged at the intersection of the first movable plate 13 and the second movable plate 14 . Because the slider 12 is disposed at the joint of the first movable plate 13 and the second movable plate 14 , when the slider 12 slides, the included angle between the two sets of movable plates will gradually decrease, and the two sets of push blocks 15 will be driven accordingly. Slide towards the center point of base 1.

Further, the push block 15 and the force receiving block 16 are attached to each other, and the contact surfaces of the pushing block 15 and the force receiving block 16 are inclined surfaces to each other. Because the contact surfaces of the push block 15 and the force-receiving block 16 are mutually inclined surfaces, when the push block 15 slides, a thrust force will be applied to the force-receiving block 16, and then the force-receiving block 16 will drive the processing table 3 to slide up along the mounting plate 2 to realize Height adjustment.

Working principle: When using, firstly perform the fixing operation of the workpiece. When the threaded rod 4 is rotated, the threaded rod 4 will drive the engaging block 5 to slide on the surface of the processing table 3, because the push plate 6 and the engaging block 5 are set obliquely. The plate 6 will exert a pulling force on the rotating plate 7 through the sliding of the engaging block 5, so that the rotating plate 7 starts to rotate clockwise, and then the rotating plate 8 will drive the sliding rod 9 to rotate together, because the sliding rod 9 is embedded in the linear sliding on the surface of the splint 10. Inside the groove, the clamping plate 10 will slide toward the fixed plate 17 on the surface of the processing table 3 through the rotation of the sliding rod 9, and then clamp the workpiece;

Next, the height of the device is adjusted, and the slider 12 is pulled by the hydraulic rod 11 to slide on the surface of the base 1, because the slider 12 is set at the joint of the first movable plate 13 and the second movable plate 14, when the slider 12 When sliding, the included angle of the two sets of movable plates will gradually become smaller, and then the two sets of push blocks 15 will be driven to slide toward the center point of the base 1, because the contact surfaces of the push blocks 15 and the force-bearing blocks 16 are inclined surfaces to each other, When the push block 15 slides, a thrust force will be applied to the force receiving block 16, and then the force receiving block 16 will drive the processing table 3 to slide upward along the mounting plate 2 to realize height adjustment.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, so it cannot be construed as a limitation to the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (7)

1. The utility model provides a be used for high accuracy part CNC processing to use positioning jig, includes base (1), meshing piece (5), rotary disk (7) and splint (10), its characterized in that: the fixed surface of base (1) is connected with mounting panel (2), the sliding surface of mounting panel (2) is connected with processing platform (3), the surface of processing platform (3) is provided with the drive meshing piece (5) at processing platform (3) gliding threaded rod (4), the surface swivelling joint of meshing piece (5) is connected with the drive rotatory push pedal (6) of rotary disk (7), the bottom fixedly connected with rotor plate (8) of rotary disk (7), the bottom fixedly connected with of rotor plate (8) drives splint (10) gliding slide bar (9), the bottom fixedly connected with atress piece (16) of processing platform (3), the fixed surface of processing platform (3) is connected with fixed plate (17).

2. The positioning jig for CNC machining of high-precision parts of claim 1, wherein the positioning jig comprises: the hydraulic support is characterized in that a hydraulic rod (11) is arranged on the side face, located on the mounting plate (2), of the surface of the base (1), a sliding block (12) is arranged at the output end of the hydraulic rod (11), a first movable plate (13) is rotatably connected to the surface of the sliding block (12), a second movable plate (14) is rotatably connected to the surface of the first movable plate (13), and a pushing block (15) is rotatably connected to the tail portions of the first movable plate (13) and the second movable plate (14).

3. The positioning jig for CNC machining of high-precision parts of claim 1, wherein the positioning jig comprises: the push plate (6) is obliquely arranged relative to the surface of the engagement block (5), and the push plate (6) and the engagement block (5) are parallel to each other.

4. The positioning jig for CNC machining of high-precision parts of claim 1, wherein the positioning jig comprises: the joint point of the push plate (6) and the rotating disk (7) deviates from the circle center of the rotating disk (7), and the length of the rotating disk (8) is greater than the diameter of the rotating disk (7).

5. The positioning jig for CNC machining of high-precision parts of claim 1, wherein the positioning jig comprises: the surface of the clamping plate (10) is provided with a linear sliding groove, and the sliding rod (9) is embedded into the sliding groove on the surface of the clamping plate (10) and is connected with the sliding groove in a sliding mode.

6. The positioning jig for CNC machining of high-precision parts as claimed in claim 2, characterized in that: the first movable plate (13) and the second movable plate (14) are mutually connected in a cross mode, and the sliding block (12) is arranged at the intersection of the first movable plate (13) and the second movable plate (14).

7. The positioning jig for CNC machining of high-precision parts as claimed in claim 2, characterized in that: the push block (15) and the stress block (16) are mutually attached, and the contact surfaces of the push block (15) and the stress block (16) are inclined planes.

Images