CN109605086B - Special equipment for milling machine for processing small-sized parts and its use method - Google Patents

Abstract

The invention discloses a milling machine special equipment for processing small-sized parts and its use method. The equipment provides two installation methods, which are suitable for most working situations. The pressure adsorption function, on the one hand, ensures that the clamping of the parts is stable and reliable, and at the same time, it opens up the small space above the small-sized parts to be processed, which greatly improves the operable space of the machine tool, thereby reducing the processing difficulty. It avoids potential safety hazards caused by unstable clamping and accidental collisions; on the other hand, it disperses the local force of the parts to a large extent, so that it can make the parts less likely to damage the surface due to clamping, which will lead to scrapping and other situations. Appear.

Description

Special equipment for milling machine for processing small-sized parts and its use method

technical field

The invention relates to a milling machine special equipment for processing small-sized parts and a use method thereof, belonging to the field of advanced manufacturing technology.

Background technique

The continuous innovation and development of social production technology has made the structure of modern mechanical and electronic equipment increasingly complex, and the equipment has the characteristics of large-scale and miniaturization based on various purposes. The size and structure of parts of miniaturized equipment are limited by the space occupied by the equipment, and there are characteristics such as irregular shapes and high precision. In the production and processing of parts, traditional processing methods are often not suitable for these parts with different shapes, and matching tooling is needed to reduce the difficulty of production and processing. Therefore, in the production and processing of such parts, its production In addition to being affected by factors such as the production and processing equipment itself and the tools used, the efficiency is also affected by the tooling used. The use of tooling can greatly improve the processing efficiency of parts, reduce production costs, reduce the work intensity of laborers, and help ensure the quality of parts.

Small-sized parts refer to parts with small size, usually the length and width are not greater than 50mm, and the working surface has uneven table tops, arc surfaces, etc., or has some special-shaped features, etc. Its processing characteristics and requirements are that parts often have a high tolerance level due to assembly needs, generally requiring H6 or H7 and above, and some working surfaces with special functions and assembly surfaces also have verticality and other positional requirements; for Yisheng For parts made of rust materials, after processing, the surface needs to be treated with chrome plating, anodic oxidation, etc., so the surface of the parts is required to have no traces other than processing traces.

The existing methods and tooling for processing small-sized parts include: basic flat tooling, electromagnet tooling, programming and processing directly through wire cutting machine tools, etc.:

The basic flat tooling is a combined tooling, which can be combined into a variety of shapes to match the characteristics of different types of parts, but this tooling cannot be miniaturized due to the relationship between assembly, and the basic flat tooling mostly uses a matching pressure plate and a positioning block to compress The positioning method is used to complete the fixing of the parts to be processed. Since the fixing force of the parts to be processed comes from the pressure plate above the parts to be processed, it is easy to form indentations during the pressing process and cause damage to the contact surface, and for small-sized parts to be processed Parts, the range of the pressure plate can be reduced, resulting in the process of pressing the parts to be processed will be more likely to cause indentation, and if the parts to be processed are not pressed, it is easy to cause the parts to be processed to shift or even fly out during processing , there are certain security risks.

Electromagnet tooling is based on the theory of electromagnetic adsorption, which can directly position the parts to be processed on the surface of the tooling, which makes the tooling unusable for parts made of non-magnetic materials. At the same time, since the parts to be processed are directly adsorbed on the surface of the electromagnet tooling, there is a risk of damage to the tooling when processing through features.

The method of processing directly through the wire cutting machine tool does not need tooling, which requires skilled operators to program the characteristics of the parts to be processed, and then start processing. Although the processing of the parts to be processed can be completed, compared with milling machines and machining centers, the processing efficiency is lower, and for small batches or even individual quantities of parts to be processed, this method is less cost-effective. If the part to be processed is non-metallic, it cannot be processed with a wire cutting machine.

These toolings and methods have problems such as insufficient adaptability, certain potential safety hazards, and easy damage to the surface of parts.

Contents of the invention

The present invention provides a milling machine special equipment for processing small-sized parts and its use method, which is used to process small-sized parts by using the special equipment in conjunction with ordinary/numerical control milling machines and using the method of the present invention.

The technical solution of the present invention is: a milling machine special equipment for processing small-sized parts, including a combined base body A, an interchangeable positioning panel B, and a displacement positioning system C; wherein the interchangeable positioning panel B is installed on the combined base body In the rounded rectangular inner groove on the top of A, four sets of displacement positioning systems C are symmetrically installed around the combined base body A, and the installation of this equipment and the milling machine is completed through the combined base body A.

The combined base body A includes an air guide base 1, and the top of the air guide base 1 is provided with a rounded rectangular inner groove and a base panel 22 in the interchangeable positioning panel B for fixed installation; The surface is provided with a vertical guide groove to match and install the vertical guide block 5 in the positioning system C.

Any two sides of the surrounding surface of the air guide base 1 are provided with an external negative pressure device inlet D equipped with a G1/4 air pipe joint or a G1/4 plug 2, and a round rectangular inner groove with a diameter of 40 mm is provided. The air guide hole, the circular air guide hole communicates with the inlet D of the external negative pressure device, and provides a negative pressure transmission channel for the equipment; among them, when there is an external negative pressure device, it is a G1/4 air pipe joint. When there is no external negative pressure device, It is a G1/4 plug.

Also includes magnetic metal strip group 3, magnetic metal strip group 3 is four metal blocks with the same structure composed of magnetic materials, magnetic metal strip group 3 passes through M8 countersunk head screw 4 and is provided with M8 on the magnetic metal strip group 3 The countersunk hole is embedded in the bottom of the air guide base 1, and the magnetic metal strip group 3 is absorbed and fixed by the electromagnet tooling to complete the installation of the equipment and the milling machine; The table is matched with an external fixing screw group to complete the installation of this equipment and the milling machine.

The flatness of the bottom surface of the rounded rectangular inner groove is within 0.04mm, the verticality between the rounded rectangular inner groove and the bottom surface is required to be within 0.04mm, and the length and width of the rounded rectangular inner groove are the same as the length and width of the interchangeable positioning panel B The size tolerance fit is H8/h7; the perpendicularity between the vertical guide groove and the top surface of the air guide base 1 is required to be within 0.04mm, and the tolerance fit size between the vertical guide groove and the boss size in the vertical guide block 5 is H7/h6 .

The interchangeable positioning panel B is composed of panel positioning screws 20, panel positioning pins 21, and a base panel 22; wherein the base panel 22 is fixedly installed in the air guide base in the combined base body A via the panel positioning screws 20 and the panel positioning pins 21. In the rectangular inner groove of the seat 1; the base plate 22 can be provided with negative pressure adsorption holes on the surface, and cooperate with the circular air guide hole of the air guide base 1 to provide the negative pressure adsorption function for this equipment.

It also includes the removal of the protective pad 23; the base plate 22 is provided with four positioning sink holes evenly distributed on the four corners of the base plate 22 for the panel positioning screws 20 to pass through, and two positioning pin holes are symmetrically distributed on both sides of the center of the base plate 22 for The panel positioning pin 21 passes through, and the two circular bottom grooves are symmetrically distributed on the bottom of the other two sides of the center of the base panel 22. Two M5 disassembly threaded holes are located in the center of the two circular bottom grooves for external screwing in of M5 screws for compression and disassembly protection. The pad 23 lifts the interchangeable positioning panel B from the rounded rectangular inner groove of the combined base body A, and two disassembly protection pads 23 are placed in the two circular bottom grooves; the distance tolerance requirements between the two positioning pin holes within ±0.015mm; the bottom surface of the base plate 22 requires a flatness within 0.04mm.

The displacement positioning system C includes a vertical guide block 5, a horizontal guide block 6, a clamping support plate 7, a clamping screw 8, a vertical fixing screw 9, a vertical fixing gasket 10, a horizontal fixing screw 11, a horizontal fixing gasket 12, Telescopic clamping strip 13, cylindrical end set screw 14, positioning sleeve 15, positioning nut 16, adjusting bolt 17, telescopic fixing piece 18, telescopic fixing screw 19; the boss on the vertical guide block 5 and the combined base The vertical guide groove provided on the surface around the air guiding base 1 in the body A is matched and installed by the vertical fixing screw 9 and the vertical fixing gasket 10, and can be adjusted and fixed up and down in the vertical direction; the boss on the horizontal guide block 6 and The horizontal guide groove on the top of the vertical guide block 5 is matched and installed by the horizontal fixing screw 11 and the horizontal fixing gasket 12, and can be adjusted and fixed along the horizontal direction; The holding screw 8 is connected to the horizontal guide block 6 through the two M6 threaded holes provided on the back of the horizontal guide block 6; the adjusting bolt 17 is screwed into the M6 fine thread through hole on the upper part of the clamping support plate 7 and connected to two positioning nuts 16. The positioning sleeve 15 is connected and fixed as a whole through one of the positioning nuts 16 and the adjusting bolt 17, and is pushed into the circular recess at the end of the telescopic clamping bar 13 through the rotation of the adjusting bolt 17, and the four cylindrical end set screws 14 are screwed in The end of the telescopic clamping strip 13 has a rectangular M4 threaded hole and is cut into the circular groove of the positioning sleeve 15 to realize the movement of the telescopic clamping strip 13 driven by the rotation of the adjusting bolt 17; the front end of the telescopic clamping strip 13 is a long strip structure , placed in the sliding guide rail at the top of the horizontal guide block 6, and supplemented by a telescopic fixing piece 18, a telescopic fixing screw 19 limit.

The parallelism between the horizontal guide groove on the top of the vertical guide block 5 and the working surface of the vertical guide block 5 is required to be within 0.04mm; The block 5 is installed in the threaded holes for fixing on the surface around the air guide base 1; the horizontal fixing screw 11 and the horizontal fixing gasket 12 pass through the waist groove on the horizontal guide block 6, and the horizontal guide block 6 is installed on the vertical guide In the fixed threaded hole provided on the top surface of the block 5; the sliding guide rail at the top of the horizontal guide block 6 is inclined at A° with the horizontal plane, and the telescopic clamping bar 13 is arranged at an A° inclined according to the sliding guide rail, and the clamping support plate 7. The axis of the M6 fine thread through hole screwed into the adjusting bolt 17 is A° to the horizontal plane, and the front end surface of the telescopic clamping strip 13 is an inclined plane at A° to the vertical plane; the positioning sleeve 15 is a cylindrical structure, and An annular groove with a width of 3mm and a depth of 1.5mm is provided; where A is 10-20.

A method for using special equipment for milling machines for processing small-sized parts, the steps of the method are as follows:

S1. In the actual application of this equipment, it should first be distinguished whether to use an external negative pressure device:

If there is no need to use an external negative pressure device, the air guide base 1 of the combined base body A of this equipment is designed so that there is no circular air guide hole with a diameter of 40mm, and no external negative pressure device connections on any two sides of the surrounding surface. Inlet D; or if it exists, it is necessary to block the inlet D of the external negative pressure device through a G1/4 plug to prevent external debris from entering the inlet D of the external negative pressure device;

If you need to use an external negative pressure device, the air guide base 1 of the combined base body A of this equipment is designed to have a circular air guide hole with a diameter of 40mm, and the external negative pressure device inlet D on any two sides of the surrounding surface, you need to pass Connect the G1/4 air pipe joint with the inlet D of the external negative pressure device, connect the G1/4 air pipe joint with the external negative pressure device, and cooperate with the base plate 22 with negative pressure adsorption holes to connect the negative pressure passage;

S2. Install the interchangeable positioning panel B: put two panel positioning pins 21 into the positioning pin holes of the base panel 22, and leave a part of the panel positioning pins 21 at the bottom of the base panel 22, and place the panel positioning pins 21 The base plate 22 is put into the rounded rectangular inner groove on the top of the air guiding base 1 with the panel positioning pin 21 as the reference, and the base plate 22 is fastened and connected to the Combined base body A; when the base panel 22 needs to be disassembled, first remove the panel positioning screws 20, and then select two M5 screws to screw into the two M5 disassembly threaded holes, and the two M5 screws are protected by pressing the two disassembly Pad 23 lifts the interchangeable positioning panel B from the combined base body A, and removes the panel positioning pin 21;

S3. Determine the installation method of this equipment according to the working surface of the ordinary/NC milling machine used. If the screw group for fixing can be used, the installation cap set at the four peripheral corners of the air guide base 1 of this equipment can be used. Implement and complete the installation of this equipment; if the electromagnet tooling can be used, the magnetic metal strip group 3 that has been embedded and installed at the bottom of the air guiding base 1 of this equipment can be absorbed and fixed by the electromagnet tooling, and the installation of this equipment can be implemented and completed ;

S4. Install four sets of displacement positioning system C: the boss on the vertical guide block 5 and the vertical guide grooves provided on the surface of the air guide base 1 in the combined base body A pass through the vertical fixing screws 9 and the vertical fixing gaskets 10 Matching installation; the boss on the horizontal guide block 6 and the horizontal guide groove on the top of the vertical guide block 5 are matched and installed through the horizontal fixing screw 11 and the horizontal fixing gasket 12, and can be adjusted and fixed along the horizontal direction; set on the telescopic clamp The clamping support plate 7 behind the holding bar 13 is connected with the horizontal guide block 6 through two M6 threaded holes provided on the back of the horizontal guide block 6 through the clamping screw 8; M6 fine thread through hole and connect two positioning nuts 16, the positioning sleeve 15 is connected and fixed with the adjusting bolt 17 through one of the positioning nuts 16 and is pushed into the circular recess at the end of the telescopic clamping bar 13 by the rotation of the adjusting bolt 17 Inside, four cylindrical end set screws 14 are screwed into the M4 threaded holes of the rectangular structure at the end of the telescopic clamping strip 13, and cut into the circular groove of the positioning sleeve 15, so that the rotation of the adjusting bolt 17 drives the movement of the telescopic clamping strip 13 ; The front end of the telescopic clamping bar 13 is a strip-shaped structure, which is placed in the sliding guide rail at the top of the horizontal guide block 6, and is supplemented by a telescopic fixing piece 18 and a telescopic fixing screw 19;

Wherein, the vertical guide block 5 can be adjusted up and down within the waist groove range of the vertical guide block 5 along the vertical guide groove provided on the surface around the air guiding base 1; Adjust up and down within the range of the waist groove on the horizontal guide block 6;

S5. If there is no need to use an external negative pressure device, after completing the assembly of the equipment and installing the equipment on the ordinary/NC workbench, place the parts to be processed on the surface of the interchangeable positioning panel B, and adjust the four sets of the equipment The displacement positioning system C moves and adjusts the vertical guide block 5 and the horizontal guide block 6 to a suitable position and then fastens them, and then adjusts the four telescopic clamping bars 13 through the adjusting bolts 17 to clamp the parts to be processed firmly, And compress the parts to be processed to the surface of the interchangeable positioning panel B, and finally tighten the positioning nut 16 to complete the fixing of the parts to be processed;

If you need to use an external negative pressure device, after completing the assembly of the equipment and installing the equipment on the ordinary/NC workbench, place the parts to be processed on the surface of the interchangeable positioning panel B, start the external negative pressure device, and move The parts to be processed test the negative pressure adsorption strength, and the strength continues to rise until the parts to be processed are difficult to move on the surface of the interchangeable positioning panel B. At this time, the external negative pressure device is stabilized; by adjusting the four sets of displacement positioning systems C of this equipment, Move and adjust the vertical guide block 5 and horizontal guide block 6 to a suitable position and fasten them, and then adjust the four telescopic clamping bars 13 through the adjusting bolts 17 to clamp the parts to be processed firmly, and finally tighten the positioning nuts 16. Complete the fixing of the parts to be processed;

S6. Start the ordinary/NC milling machine, select the appropriate milling cutter according to the requirements of the parts drawing, and then proceed to the normal processing of the parts.

The beneficial effects of the present invention are: through this equipment, the parts can be processed conveniently and quickly on the ordinary milling machine and the CNC milling machine, which can reduce the difficulty of clamping the parts and maintain the positioning state. Reduce the workload of the operator. This equipment provides two installation methods, which are suitable for most working situations. The equipment adopts the mechanical clamping method around and the auxiliary external negative pressure adsorption function, which replaces the fixing method of the pressure plate of the general basic flat tooling. On the one hand, it ensures While the clamping of the parts is stable and reliable, the small space above the parts to be processed is opened up, which greatly improves the operable space of the machine tool, thereby reducing the difficulty of processing and avoiding problems caused by unstable clamping and Potential safety hazards caused by accidental collisions; on the other hand, due to the way of mechanical clamping around (and the function of auxiliary negative pressure adsorption) to a large extent, the local force of the parts is dispersed, so that the parts are less likely to be damaged due to clamping. Damage the surface, which in turn leads to the occurrence of scrap and so on. Compared with the difficult clamping phenomenon of the basic flat tooling, the limited material of the electromagnet tooling, and the insufficient efficiency of the wire cutting machine tool, this equipment has higher adaptability and can be conveniently used for processing parts. Efficient clamping of parts without distinguishing the material of the parts, and it is suitable for most common milling machines and CNC milling machines. Without changing the processing characteristics of common milling machines and CNC milling machines, the production and processing range of them is broadened.

Description of drawings

Fig. 1 is the axonometric drawing of equipment of the present invention;

Fig. 2 is the explosion diagram of equipment of the present invention;

Fig. 3 is a schematic view of the structure of the clamping support plate in the present invention;

The labels in the figure are: A-combined base body, B-interchange positioning panel, C-displacement positioning system, D-external negative pressure device inlet, 1-air guide base, 2-G1/4 air pipe connector Or G1/4 plug, 3-G1/4 air pipe joint or G1/4 plug, 4-M8 countersunk screw, 5-vertical guide block, 6-horizontal guide block, 7-clamp support plate, 8-clamp Holding screw, 9-vertical fixing screw, 10-vertical fixing washer, 11-horizontal fixing screw, 12-horizontal fixing washer, 13-telescopic clamping strip, 14-cylindrical end set screw, 15-positioning sleeve, 16 -locating nut, 17-adjusting bolt, 18-telescopic fixing piece, 19-telescopic fixing screw, 20-panel positioning screw, 21-panel positioning pin, 22-base panel, 23-removal protection pad.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the content of the present invention is not limited to the stated scope.

Embodiment 1: As shown in Figure 1-3, a milling machine special equipment for processing parts, including a combined base body A, an interchangeable positioning panel B, and a displacement positioning system C; wherein the interchangeable positioning panel B is installed on the combined In the rounded rectangular inner groove on the top of the base body A, four sets of displacement positioning systems C are symmetrically installed around the combined base body A, and the installation of the equipment and the milling machine is completed through the combined base body A.

Further, it can be set that the combined base body A includes an air guide base 1, and the top of the air guide base 1 is provided with a rounded rectangular inner groove and is fixedly installed with the base panel 22 in the interchangeable positioning panel B; The outer peripheral surface of the base 1 is provided with a vertical guide groove to match and install the vertical guide block 5 in the positioning system C.

Further, any two sides of the surrounding surface of the air guide base 1 can be provided with an external negative pressure device inlet D equipped with a G1/4 trachea joint or a G1/4 plug 2, and a rounded rectangular inner groove is provided. There is a circular air guide hole with a diameter of 40mm, and the circular air guide hole communicates with the inlet D of the external negative pressure device to provide a negative pressure transmission channel for the equipment; among them, when there is an external negative pressure device, it is a G1/4 air pipe joint, and when there is no external negative pressure device For negative pressure device, it is G1/4 plug.

Further, it can also be set to include a magnetic metal strip group 3, the magnetic metal strip group 3 is four metal blocks with the same structure composed of magnetic materials, and the magnetic metal strip group 3 passes through the M8 countersunk head screw 4 on the magnetic metal strip group 3. The provided M8 countersunk hole is embedded and installed at the bottom of the air guide base 1, through the magnetic metal strip group 3, and fixed by the electromagnet tooling to complete the installation of this equipment and the milling machine; or through the four peripheral corners of the air guide base 1 The mounting platform provided at the end is combined with the external fixing screw group to complete the installation of this equipment and the milling machine.

Further, it can be set that the flatness of the bottom surface of the rounded rectangular inner groove is within 0.04mm, the verticality between the rounded rectangular inner groove and the bottom surface is required to be within 0.04mm, and the length and width dimensions of the rounded rectangular inner groove and the interchangeable positioning The tolerance of the length and width of the panel B is H8/h7 (to ensure that the negative pressure leakage is small when the bottom surface of the interchangeable positioning panel B is pressed (if an external negative pressure device is used)); the vertical guide groove and the air guide base 1 The verticality of the top surface is required to be within 0.04mm, and the tolerance matching dimension between the vertical guide groove and the boss size in the vertical guide block 5 is H7/h6.

Further, it can be set that the interchangeable positioning panel B is composed of panel positioning screws 20, panel positioning pins 21, and base panel 22; wherein the base panel 22 is fixedly installed on the combined base body via the panel positioning screws 20 and panel positioning pins 21 In the rectangular inner groove of the air guide base 1 in A; wherein the base plate 22 can be provided with negative pressure adsorption holes on the surface, and cooperate with the circular air guide holes of the air guide base 1 to provide negative pressure adsorption function for this equipment (i.e. base plate 22 Set negative pressure adsorption holes on the surface, cooperate with the circular air guide hole of the air guide base 1, to provide negative pressure adsorption function for this equipment/or it is not necessary not to provide negative pressure adsorption function in the case of setting negative pressure adsorption holes on the surface; Or the base plate 22 is not provided with negative pressure adsorption holes on the surface).

Further, it can be provided that the protective pad 23 can also be disassembled (the protective pad 23 can be removed during the replacement and disassembly process of the interchangeable positioning panel B to avoid damage to the bottom surface of the rounded rectangular inner groove of the combined base body A, resulting in negative pressure leakage); The base plate 22 is provided with four positioning sink holes evenly distributed in the four corners of the base plate 22 for the panel positioning screws 20 to pass through, and two positioning pin holes are symmetrically distributed on both sides of the center of the base plate 22 for the panel positioning pins 21 to pass through. Two circular bottom grooves are symmetrically distributed on the bottom of the other two sides at the center of the base panel 22, and two M5 dismounting threaded holes are located at the center of the two circular bottom grooves for externally screwing in M5 screws to compress and disassemble the protective pad 23 to interchange the positioning panel B is lifted from the rounded rectangular inner groove of the combined base body A, and two disassembly protection pads 23 are placed in the two circular bottom grooves; the distance tolerance between the two positioning pin holes is required to be within ±0.015mm; the base The flatness of the bottom surface of the panel 22 is required to be within 0.04 mm.

Further, the displacement positioning system C can be set to include a vertical guide block 5, a horizontal guide block 6, a clamping support plate 7, a clamping screw 8, a vertical fixing screw 9, a vertical fixing washer 10, a horizontal fixing screw 11, a horizontal Fixed gasket 12, telescopic clamping strip 13, cylindrical end set screw 14, positioning sleeve 15, positioning nut 16, adjusting bolt 17, telescopic fixing piece 18, telescopic fixing screw 19; the boss on the vertical guide block 5 The vertical guide groove provided on the surrounding surface of the air guide base 1 in the combined base body A is matched with the vertical fixing screw 9 and the vertical fixing gasket 10, and can be adjusted and fixed up and down in the vertical direction; the horizontal guide block 6 The boss on the top and the horizontal guide groove on the top of the vertical guide block 5 are matched and installed through the horizontal fixing screw 11 and the horizontal fixing gasket 12, and can be adjusted and fixed along the horizontal direction left and right; The support plate 7 is connected with the horizontal guide block 6 through the two M6 threaded holes provided on the back of the horizontal guide block 6 through the clamping screw 8; Connect two positioning nuts 16, the positioning sleeve 15 is connected and fixed as a whole through one of the positioning nuts 16 and the adjusting bolt 17, and is pushed into the circular concave platform at the end of the telescopic clamping bar 13 by the rotation of the adjusting bolt 17, and the four cylindrical ends are tightened. The fixed screw 14 is screwed into the M4 threaded hole of the rectangular structure at the end of the telescopic clamping bar 13, and cut into the circular groove of the positioning sleeve 15, so that the rotation of the adjusting bolt 17 drives the movement of the telescopic clamping bar 13; the front end of the telescopic clamping bar 13 It is an elongated structure, placed in the sliding guide rail at the top of the horizontal guide block 6, and supplemented by a telescopic fixing piece 18 and a telescopic fixing screw 19 to limit the position.

Further, the parallelism between the horizontal guide groove on the top of the vertical guide block 5 and the working surface of the vertical guide block 5 can be set within 0.04mm; Groove, the vertical guide block 5 is installed in the threaded holes for fixing that the surface around the air guiding base 1 is provided with; 6 is installed in the threaded hole for fixing provided on the top surface of the vertical guide block 5; the sliding guide rail on the top of the horizontal guide block 6 is inclined at A° from the horizontal plane, and the telescopic clamping strip 13 is arranged at an angle of A° according to the sliding guide rail , the axis of the M6 fine thread through hole of the clamping support plate 7 top screwed into the adjusting bolt 17 is A° with the horizontal plane, and the front end surface of the telescopic clamping bar 13 is an inclined plane with the vertical plane being A° (setting this inclined plane can make it Better clamping is provided with parallel plane parts that can be clamped around. When the parts are other clamping surfaces, the front end surface of the telescopic clamping bar 13 can be adjusted adaptively), so that the displacement positioning system is compatible with the clamping surface when clamping. The working surface of interchangeable positioning panel B is vertical, which is beneficial to the clamping of parts to be processed; by rotating the adjusting bolt 17, the telescopic clamping bar 13 can be advanced or retracted, and the telescopic clamps of four sets of displacement positioning systems C located in four directions can be passed. The holding strips 13 are pushed together to realize the clamping and fixing function of the parts to be processed; the positioning sleeve 15 is a cylindrical structure, and a circular groove with a width of 3 mm and a depth of 1.5 mm is provided on the cylindrical surface; where A takes a value of 10 to 20 .

A method for using special equipment for milling machines for processing parts, the steps of the method are as follows:

S1. In the actual application of this equipment, it should first be distinguished whether to use an external negative pressure device:

If there is no need to use an external negative pressure device, the air guide base 1 of the combined base body A of this equipment is designed so that there is no circular air guide hole with a diameter of 40mm, and no external negative pressure device connections on any two sides of the surrounding surface. Inlet D; or if it exists, it is necessary to block the inlet D of the external negative pressure device through a G1/4 plug to prevent external debris from entering the inlet D of the external negative pressure device;

If you need to use an external negative pressure device, the air guide base 1 of the combined base body A of this equipment is designed to have a circular air guide hole with a diameter of 40mm, and the external negative pressure device inlet D on any two sides of the surrounding surface, you need to pass Connect the G1/4 air pipe joint with the inlet D of the external negative pressure device, connect the G1/4 air pipe joint with the external negative pressure device, and cooperate with the base plate 22 with negative pressure adsorption holes to connect the negative pressure passage;

S2. Install the interchangeable positioning panel B: put two panel positioning pins 21 into the positioning pin holes of the base panel 22, and leave a part of the panel positioning pins 21 at the bottom of the base panel 22, and place the panel positioning pins 21 The base plate 22 is put into the rounded rectangular inner groove on the top of the air guiding base 1 with the panel positioning pin 21 as the reference, and the base plate 22 is fastened and connected to the Combined base body A; when the base panel 22 needs to be disassembled, first remove the panel positioning screws 20, and then select two M5 screws to screw into the two M5 disassembly threaded holes, and the two M5 screws are protected by pressing the two disassembly Pad 23 lifts the interchangeable positioning panel B from the combined base body A, and removes the panel positioning pin 21;

The selected base plate 22 is not damaged, and its working surface is in good contact with the contact surface of the part to be processed;

S3. Determine the installation method of this equipment according to the working surface of the ordinary/NC milling machine used. If the screw group for fixing can be used, the installation cap set at the four peripheral corners of the air guide base 1 of this equipment can be used. Implement and complete the installation of this equipment; if the electromagnet tooling can be used, the magnetic metal strip group 3 that has been embedded and installed at the bottom of the air guiding base 1 of this equipment can be absorbed and fixed by the electromagnet tooling, and the installation of this equipment can be implemented and completed ;

S4. Install four sets of displacement positioning system C: the boss on the vertical guide block 5 and the vertical guide grooves provided on the surface of the air guide base 1 in the combined base body A pass through the vertical fixing screws 9 and the vertical fixing gaskets 10 Matching installation; the boss on the horizontal guide block 6 and the horizontal guide groove on the top of the vertical guide block 5 are matched and installed through the horizontal fixing screw 11 and the horizontal fixing gasket 12, and can be adjusted and fixed along the horizontal direction; set on the telescopic clamp The clamping support plate 7 behind the holding bar 13 is connected with the horizontal guide block 6 through two M6 threaded holes provided on the back of the horizontal guide block 6 through the clamping screw 8; M6 fine thread through hole and connect two positioning nuts 16, the positioning sleeve 15 is connected and fixed with the adjusting bolt 17 through one of the positioning nuts 16 and is pushed into the circular recess at the end of the telescopic clamping bar 13 by the rotation of the adjusting bolt 17 Inside, four cylindrical end set screws 14 are screwed into the M4 threaded holes of the rectangular structure at the end of the telescopic clamping strip 13, and cut into the circular groove of the positioning sleeve 15, so that the rotation of the adjusting bolt 17 drives the movement of the telescopic clamping strip 13 ; The front end of the telescopic clamping bar 13 is a strip-shaped structure, which is placed in the sliding guide rail at the top of the horizontal guide block 6, and is supplemented by a telescopic fixing piece 18 and a telescopic fixing screw 19;

Wherein, the vertical guide block 5 can be adjusted up and down within the waist groove range of the vertical guide block 5 along the vertical guide groove provided on the surface around the air guiding base 1; Adjust up and down within the range of the waist groove on the horizontal guide block 6; the sliding guide rail at the top of the horizontal guide block 6 is inclined at A° with the horizontal plane, compared to 0° parallel to the horizontal plane, because the existence of A° will make The direction of the pressure also acts on the parts to be processed in the direction of A°, and the final pressure on the parts to be processed will have a horizontal direction and a vertical downward direction, which is more conducive to stably clamping the parts to be processed and avoiding the milling of the parts to be processed on the milling machine During the processing, there is a potential safety hazard that the parts to be processed will fly out due to unstable clamping;

S5. If there is no need to use an external negative pressure device, after completing the assembly of the equipment and installing the equipment on the ordinary/NC workbench, place the parts to be processed on the surface of the interchangeable positioning panel B, and adjust the four sets of the equipment The displacement positioning system C moves and adjusts the vertical guide block 5 and the horizontal guide block 6 to a suitable position and then fastens them, and then adjusts the four telescopic clamping bars 13 through the adjusting bolts 17 to clamp the parts to be processed firmly, And compress the parts to be processed to the surface of the interchangeable positioning panel B, and finally tighten the positioning nut 16 to complete the fixing of the parts to be processed;

If you need to use an external negative pressure device, after completing the assembly of the equipment and installing the equipment on the ordinary/NC workbench, place the parts to be processed on the surface of the interchangeable positioning panel B, start the external negative pressure device, and move The parts to be processed test the negative pressure adsorption strength, and the strength continues to rise until the parts to be processed are difficult to move on the surface of the interchangeable positioning panel B. At this time, the external negative pressure device is stabilized; by adjusting the four sets of displacement positioning systems C of this equipment, Move and adjust the vertical guide block 5 and horizontal guide block 6 to a suitable position and fasten them, and then adjust the four telescopic clamping bars 13 through the adjusting bolts 17 to clamp the parts to be processed firmly, and finally tighten the positioning nuts 16. Complete the fixing of the parts to be processed;

The clamping and stabilizing process is as follows: first, only loosen the positioning nut 16 close to the clamping support plate 7, then rotate the adjusting bolt 17 to adjust the position of the telescopic clamping bar 13, when the position of the telescopic clamping bar 13 is adjusted, tighten it close to Clamp the positioning nut 16 at the support plate 7 to fix the adjusting bolt 17;

S6. Start the ordinary/NC milling machine, select the appropriate milling cutter according to the requirements of the parts drawing, and then proceed to the normal processing of the parts.

The specific implementation of the present invention has been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned implementation, within the knowledge of those of ordinary skill in the art, it can also be made without departing from the gist of the present invention. Variations.

Claims (8)

1. A milling machine special equipment for processing small-sized parts, characterized in that it includes a combined base body (A), an interchangeable positioning panel (B), and a displacement positioning system (C); wherein the interchangeable positioning panel (B) Installed in the rounded rectangular inner groove on the top of the combined base body (A), four sets of displacement positioning systems (C) are symmetrically installed around the combined base body (A), and are completed by the combined base body (A) Installation of this equipment and milling machine; The displacement positioning system (C) includes a vertical guide block (5), a horizontal guide block (6), a clamping support plate (7), a clamping screw (8), a vertical fixing screw (9), a vertical fixing gasket ( 10), horizontal fixing screw (11), horizontal fixing washer (12), telescopic clamping bar (13), cylindrical end set screw (14), positioning sleeve (15), positioning nut (16), adjusting bolt ( 17), telescopic fixing piece (18), telescopic fixing screw (19); the boss on the vertical guide block (5) and the surrounding surface of the air guide base (1) in the combined base body (A) are provided with The vertical guide slots are matched and installed by vertical fixing screws (9) and vertical fixing washers (10), and can be adjusted and fixed vertically up and down; the boss on the horizontal guide block (6) and the vertical guide block (5) The horizontal guide groove on the top is matched and installed by the horizontal fixing screw (11) and the horizontal fixing gasket (12), and can be adjusted and fixed along the horizontal direction left and right; the clamping support plate ( 7) Connect the horizontal guide block (6) with the clamping screw (8) through the two M6 threaded holes on the back of the horizontal guide block (6); screw the adjusting bolt (17) into the clamping support plate (7) The upper M6 fine thread through hole is connected with two positioning nuts (16), and the positioning sleeve (15) is connected and fixed with the adjusting bolt (17) through one of the positioning nuts (16) and is rotated by the adjusting bolt (17) Push it into the circular recess at the end of the telescopic clamping bar (13), screw the four cylindrical end set screws (14) into the M4 threaded holes of the rectangular structure at the end of the telescopic clamping bar (13), and cut into the positioning sleeve (15 ) to realize the rotation of the adjusting bolt (17) to drive the movement of the telescopic clamping bar (13); Move in the guide rail, supplemented by telescopic fixing pieces (18) and telescopic fixing screws (19) to limit the position; The parallelism between the horizontal guide groove on the top of the vertical guide block (5) and the working surface of the vertical guide block (5) is required to be within 0.04mm; the vertical fixing screw (9) and the vertical fixing gasket (10) pass through the vertical guide block ( 5) Install the vertical guide block (5) in the fixed threaded holes provided on the surface around the air guiding base (1) in the upper waist groove; the horizontal fixing screw (11) and the horizontal fixing gasket (12) pass through Waist groove on the horizontal guide block (6), the horizontal guide block (6) is installed in the fixing screw hole that the vertical guide block (5) top surface is provided with; The horizontal plane is set at an inclination of A°, the telescopic clamping bar (13) is set at an inclination of A° according to the sliding guide rail, and the axis of the M6 fine thread through hole of the adjusting bolt (17) is screwed into the upper part of the clamping support plate (7) and the horizontal plane A°, the front end surface of the telescopic clamping strip (13) is an inclined surface A° from the vertical surface; the positioning sleeve (15) is a cylindrical structure, and a circular groove with a width of 3 mm and a depth of 1.5 mm is provided on the cylindrical surface ; where A takes a value of 10~20. 2. The milling machine special equipment for processing small-sized parts according to claim 1, characterized in that: the combined base body (A) includes an air guide base (1), and the air guide base (1) The top is provided with a rounded rectangular inner groove and the base panel (22) of the interchangeable positioning panel (B) is fixedly installed; the outer surface of the air guide base (1) is provided with vertical guide grooves and vertical guides in the displacement positioning system (C) Block (5) matches the installation. 3. The milling machine special equipment for processing small-sized parts according to claim 2, characterized in that: any two sides of the surrounding surface of the air guide base (1) are equipped with G1/4 air pipe joints or G1/4 The plug (2) is connected to the inlet (D) of the external negative pressure device. There is a circular air hole with a diameter of 40 mm in the rounded rectangular inner groove. The circular air hole is connected to the inlet (D) of the external negative pressure device, providing equipment Negative pressure transmission channel; among them, when there is an external negative pressure device, it is a G1/4 air pipe joint, and when there is no external negative pressure device, it is a G1/4 plug. 4. The milling machine special equipment for processing small-sized parts according to claim 2, characterized in that: it also includes a magnetic metal strip group (3), and the magnetic metal strip group (3) is composed of four pieces of magnetic materials with the same structure The metal block, the magnetic metal strip group (3) is embedded in the bottom of the air guide base (1) through the M8 countersunk screw (4) through the M8 countersunk hole provided on the magnetic metal strip group (3), and the magnetic metal strip The strip group (3) is absorbed and fixed by the electromagnet tooling to complete the installation of the equipment and the milling machine; or the installation cap set at the four peripheral corners of the air guide base (1) is matched with the external fixing screw group to complete the installation of the equipment With the installation of the milling machine. 5. The milling machine special equipment for processing small-sized parts according to claim 2, characterized in that: the flatness of the bottom surface of the rounded rectangular inner groove is within 0.04mm, and the verticality between the rounded rectangular inner groove and the bottom surface is required to reach Within 0.04mm, the tolerance of the length and width of the rounded rectangular inner groove and the length and width of the interchangeable positioning panel (B) is H8/h7; the perpendicularity between the vertical guide groove and the top surface of the air guide base (1) is required Within 0.04mm, and the tolerance matching dimension of the vertical guide groove and the dimension of the boss in the vertical guide block (5) is H7/h6. 6. The milling machine special equipment for processing small-sized parts according to claim 1, characterized in that: the interchangeable positioning panel (B) is composed of panel positioning screws (20), panel positioning pins (21), base plate (22 ) composition; wherein the base plate (22) is fixedly installed in the rectangular inner groove of the air guide base (1) in the combined base body (A) via the panel positioning screws (20) and panel positioning pins (21); the base The panel (22) can be provided with negative pressure adsorption holes on the surface, and cooperates with the circular air guide hole of the air guide base (1) to provide the equipment with a negative pressure adsorption function. 7. The milling machine special equipment for processing small-sized parts according to claim 6, characterized in that: it also includes a disassembly protection pad (23); the base plate (22) is provided with four positioning countersink holes evenly distributed on the base plate ( 22) Four corners are used for panel positioning screws (20) to pass through, two positioning pin holes are symmetrically distributed on both sides of the center of the base panel (22) for panel positioning pins (21) to pass through, and two circular bottom grooves are symmetrically distributed on At the bottom of the other two sides in the center of the base plate (22), two M5 disassembly threaded holes are located in the center of the two circular bottom grooves for external screwing in of M5 screws to compress the disassembly protection pad (23) to replace the positioning panel (B) from the combination The rounded rectangular inner groove of the base body (A) is jacked up, and two disassembly protection pads (23) are placed in the two circular bottom grooves; the distance tolerance between the two positioning pin holes is required to be within ±0.015mm; The flatness of the bottom surface of the base plate (22) is required to be within 0.04mm. 8. A method of using the milling machine special equipment for processing small-sized parts according to claim 1, characterized in that: the method steps are as follows: S1. In the actual application of this equipment, it should first be distinguished whether to use an external negative pressure device: If there is no need to use an external negative pressure device, the air guide base (1) of the combined base body (A) of this equipment is designed so that there is no circular air guide hole with a diameter of 40 mm, and no external connections on any two sides of the surrounding surface. The inlet (D) of the negative pressure device; or if it exists, it is necessary to block the inlet (D) of the external negative pressure device with a G1/4 plug to prevent external debris from entering the inlet (D) of the external negative pressure device; If it is necessary to use an external negative pressure device, the air guide base (1) of the combined base body (A) of this equipment is designed to have a circular air guide hole with a diameter of 40mm, and an external negative pressure device inlet on any two sides of the surrounding surface (D), it is necessary to connect the G1/4 air pipe joint with the external negative pressure device inlet (D), and then connect the G1/4 air pipe joint with the external negative pressure device, and cooperate with the base plate with negative pressure adsorption holes (22) to connect the negative pressure pathway; S2. Install the interchangeable positioning panel (B): Put the two panel positioning pins (21) into the positioning pin holes of the base panel (22), and leave a space for the panel positioning pins (21) at the bottom of the base panel (22) One part, put the base plate (22) with the panel positioning pin (21) into the rounded rectangular inner groove on the top of the air guide base (1) based on the panel positioning pin (21), pass the base plate (22) The countersunk holes distributed at the four corners are used to securely connect the base plate (22) to the combined base body (A) through the panel set screws (20); when the base plate (22) needs to be disassembled, remove the panel set screws (20) first ), and then select two M5 screws and screw them into the two M5 disassembly threaded holes, and the two M5 screws will press the two disassembly protection pads (23) to separate the interchangeable positioning panel (B) from the combined base body (A ) and take it out, and then remove the panel positioning pin (21); S3. Determine the installation method of this equipment according to the working surface of the ordinary/NC milling machine used. If the fixing screw group can be used, it can be installed through the corners of the four peripheral corners of the air guide base (1) of this equipment. Implement and complete the installation of this equipment on the bearing platform; if the electromagnet tooling can be used, the magnetic metal strip group (3) embedded in the bottom of the air guide base (1) of this equipment can be fixed by the adsorption and fixation of the electromagnet tooling, and the installation can be carried out. And complete the installation of this equipment; S4. Install four sets of displacement positioning systems (C): the boss on the vertical guide block (5) and the vertical guide grooves provided on the surrounding surface of the air guide base (1) in the combined base body (A) are fixed vertically The screw (9) and the vertical fixing spacer (10) are matched and installed; the boss on the horizontal guide block (6) and the horizontal guide groove on the top of the vertical guide block (5) pass through the horizontal fixing screw (11), the horizontal fixing spacer ( 12) Matching installation, and can be adjusted and fixed along the horizontal direction left and right; the clamping support plate (7) set behind the telescopic clamping bar (13) is set on the back of the horizontal guide block (6) through the clamping screw (8) Some two M6 threaded holes are connected with the horizontal guide block (6) as a whole; the adjusting bolt (17) is screwed into the M6 fine thread through hole on the upper part of the clamping support plate (7) and connected with two positioning nuts (16), The positioning sleeve (15) is connected and fixed with the adjusting bolt (17) through one of the positioning nuts (16) and is pushed into the circular recess at the end of the telescopic clamping bar (13) through the rotation of the adjusting bolt (17). The set screw (14) at the cylindrical end is screwed into the M4 threaded hole of the rectangular structure at the end of the telescopic clamping bar (13), and cut into the circular groove of the positioning sleeve (15) to realize the rotation of the adjusting bolt (17) to drive the telescopic clamping The movement of the bar (13); the front end of the telescopic clamping bar (13) is a long strip structure, which is placed in the sliding guide rail on the top of the horizontal guide block (6), and is supplemented by a telescopic fixing piece (18), a telescopic fixing screw ( 19) limit; Among them, the vertical guide block (5) can be adjusted up and down within the waist groove range of the vertical guide block (5) along the vertical guide groove provided on the surface around the air guide base (1); the horizontal guide block (6) can be guided vertically The horizontal guide groove on the top of the block (5) is adjusted left and right within the range of the waist groove on the horizontal guide block (6); S5. If you do not need to use an external negative pressure device, after completing the assembly of the equipment and installing the equipment on the ordinary/NC milling machine table, place the parts to be processed on the surface of the interchangeable positioning panel (B) and adjust the equipment Four sets of displacement positioning systems (C), move and adjust the vertical guide block (5) and horizontal guide block (6) to a suitable position and tighten them, and then tighten the four telescopic clamping bars (13) through the adjustment bolts (17) Adjust to clamp the parts to be processed firmly, and press the parts to be processed onto the surface of the interchangeable positioning panel (B), and finally tighten the positioning nut (16) to complete the fixing of the parts to be processed; If you need to use an external negative pressure device, after completing the assembly of this equipment and installing this equipment on the ordinary/NC milling machine table, place the parts to be processed on the surface of the interchangeable positioning panel (B), and start the external negative pressure device , by moving the parts to be processed to test the negative pressure adsorption strength, the strength continues to rise until the parts to be processed are difficult to move on the surface of the interchangeable positioning panel (B), at this time the external negative pressure device is stabilized; by adjusting the four sets of equipment Displacement positioning system (C), move and adjust the vertical guide block (5) and horizontal guide block (6) to a suitable position and tighten them, and then tighten the four telescopic clamping bars (13) through the adjustment bolts (17) Adjust until the parts to be processed are firmly clamped, and finally tighten the positioning nut (16) to complete the fixing of the parts to be processed; S6. Start the ordinary/NC milling machine, select the appropriate milling cutter according to the requirements of the parts drawing, and then normally carry out the processing of small-sized parts.