CN210967348U - A frock clamp for high accuracy inner key groove line cutting process - Google Patents
A frock clamp for high accuracy inner key groove line cutting process Download PDFInfo
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- CN210967348U CN210967348U CN201921602605.2U CN201921602605U CN210967348U CN 210967348 U CN210967348 U CN 210967348U CN 201921602605 U CN201921602605 U CN 201921602605U CN 210967348 U CN210967348 U CN 210967348U
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- 238000005520 cutting process Methods 0.000 title claims abstract description 43
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000003754 machining Methods 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009763 wire-cut EDM Methods 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000010923 batch production Methods 0.000 description 3
- 238000010892 electric spark Methods 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a frock clamp for high accuracy inner key groove line cutting processing, frock clamp include V-arrangement piece, clamp plate and bolt, the one side of V-arrangement piece is opened there is the V-arrangement groove, the suitable for reading both sides of V-arrangement groove have and are provided with horizontal pterygoid lamina, the equidistance is provided with the screw hole on the pterygoid lamina, the bottom in V-arrangement groove sets up the rectangle slot, the bottom of V-arrangement piece be provided with the bottom plate that the pterygoid lamina is relative to, and the relevant position of bottom plate also the equidistance is provided with the same screw hole, the clamp plate is V-arrangement or isosceles trapezoid, the central point at the both ends of clamp plate puts and sets up the bolt hole, the bolt with the screw hole on the horizontal pterygoid lamina mutually supports on the V-arrangement piece, still provides a. The utility model discloses can let the part pass through on the quick fixed wire cut electrical discharge machining bed of frock clamp to location that can be quick accurate realizes the scale production in batches of high accuracy, high efficiency, high yield.
Description
Technical Field
The utility model belongs to the technical field of the machining technique and specifically relates to a keyway linear cutting processing method and frock clamp in high accuracy.
Background
The key is used for circumferential fixation between a shaft and a part on the shaft to transmit torque, and some keys can also realize axial fixation or axial movement of the part on the shaft. A groove, called a keyway, is machined into the shaft or bore to mate with the key for receiving the key to transmit torque.
Although the key slot is a common mechanical structure, with the progress of science and technology and the development of intellectualization, the automation degree of some equipment is higher and higher, so the precision requirement on parts is higher and higher, if the parts are processed with a very small quantity, the cost can be ignored, but for parts produced in batches, the production efficiency is improved, the yield is improved, and the cost is also saved.
The traditional processing methods of the key slot comprise broaching machine processing, boring machine processing, planer processing, milling machine processing, slotting machine processing and the like, the tolerance of the key slot processed by the processing methods is very large, generally more than 0.1mm, and the processing of high-precision parts cannot be met at all.
The wire cutting is a processing method which can melt and oxidize local metal to be corroded by utilizing the instantaneous high temperature of electric sparks, the wire cutting processing is to utilize the electric spark discharge between a wire electrode of a wire cutting machine tool and a workpiece, and the discharge phenomenon is uniform and consistent through monitoring and control of NC control and execution of a servo mechanism, so that a processed object is processed to be a product which meets the requirements on size, shape and precision. The wire cutting precision is very high, and the highest precision can reach 0.001mm level, and a high-precision key groove can be completely processed.
Wire cutting can also realize the batch production of high-precision internal keyway parts, but the parts are basically not circular, and the position of the parts placed on a wire cutting machine becomes a key link of yield and efficiency in batch production due to the limitation of the wire cutting machine.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at the not enough of prior art, provide a keyway wire-electrode cutting processing method and frock clamp in high accuracy, can let the part pass through on the quick fixed wire cut electrical discharge machining bed of frock clamp to location that can be quick accurate realizes the batch large-scale production of high accuracy, high efficiency, high yield.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-precision inner key groove linear cutting machining method comprises the following machining steps:
step 1: inputting a drawing on the wire cutting machine and programming.
Step 2: and (5) fixing the part 4 on the tool clamp in a loose manner.
And step 3: the part and the tool clamp are integrally combined and then placed on the marble platform table surface, the positions of the part and the tool clamp are adjusted, and the part is fastened on the tool clamp.
And 4, step 4: and placing the assembly of the part and the tool clamp on a workbench of the linear cutting machine tool, and aligning the horizontal direction of the tool clamp.
And 5: and threading the electrode wire in the hole of the part to find the center of the hole of the part.
Step 6: and cutting the inner key groove.
The tooling clamp matched with the method comprises a V-shaped block, a pressing plate and a bolt, wherein a V-shaped groove is formed in one surface of the V-shaped block, horizontal wing plates are arranged on two sides of an upper opening of the V-shaped groove, threaded holes are formed in the wing plates at equal intervals, a rectangular groove is formed in the bottom of the V-shaped groove, a bottom plate opposite to the wing plates is arranged at the bottom of the V-shaped block, the same threaded holes are formed in the corresponding positions of the bottom plate at equal intervals, the pressing plate is V-shaped or isosceles trapezoid, bolt holes are formed in the center positions of two ends of the pressing plate, bolt through holes are formed in the bolt holes, the openings of the two bolt through holes are 90-degree included angles, rapid clamping and locking of parts are facilitated, and the bolt.
Furthermore, errors of parallelism and perpendicularity between the mutual surfaces of the V-shaped block shapes are less than 0.01 mm.
Furthermore, the center line of the V-shaped groove is in the symmetrical plane of the V-shaped block and is parallel to the bottom surface, and the errors of concentricity and parallelism are both less than 0.01 mm.
Further, the opening angle of the V-shaped groove is 90-120 degrees.
Further, the half angle error of the V-shaped groove is less than 30 ″.
Further, the V-shaped grooves have a V-shaped surface roughness Ra <0.63 μm.
Furthermore, the pressing plate is made of red copper or soft aluminum, the hardness of the pressing plate is softer than that of the parts, and the parts can be prevented from being clamped and deformed when being clamped and mounted, so that waste products are prevented.
Furthermore, the bolt adopts 9.8-grade or 10.9-grade high-strength bolt, and has the characteristics of high strength and difficulty in slipping.
Furthermore, the bolt is a hexagon socket head cap screw, so that the operation is easy, and the fastening and the dismounting are convenient.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a high accuracy inner key groove wire-electrode cutting processing method and frock clamp press from both sides the part on frock clamp, because frock clamp's precision is very high, consequently, place the combination of part and frock clamp back on wire-electrode cutting machine's the workstation, only need confirm a parameter, carry out wire-electrode cutting processing, the size of the part of processing out accords with the requirement of high accuracy completely.
2. The utility model discloses a high accuracy inner key groove line cutting processing method and frock clamp, frock clamp can produce very high precision to guaranteed the precision of the part by the line cutting, realized mass production simultaneously, improved production efficiency and yield, reduced manufacturing cost.
3. The utility model discloses a high accuracy inner key groove line cutting processing method and frock clamp, its frock clamp adopt red copper or soft aluminium to make, and at the in-process of fixed part, the benchmark of part is unified with the benchmark of V-arrangement piece easily, has eliminated other frock clamp's accumulative error, obtains high machining precision more easily.
4. The utility model discloses a high accuracy inner key groove line cutting processing method and frock clamp not only are fit for walking the silk processing slowly, walk the silk processing in also being fit for moreover.
Drawings
FIG. 1 is a schematic view of a combination of a part and a tool holder according to the present invention;
fig. 2 is the utility model discloses a frock clamp's V-arrangement piece sketch map.
Fig. 3 is a schematic view of the pressing plate of the tool clamp of the present invention.
Fig. 4 is a schematic view of the machined part of the present invention.
In the figure: 1-V-shaped block, 2-pressing plate, 3-bolt, 4-part, 11-V-shaped groove, 12-rectangular groove, 13-wing plate, 14-screw hole and 15-bottom plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 2 and 3, the tool clamp for high-precision internal keyway linear cutting machining comprises a V-shaped block 1, a pressure plate 2 and a bolt 3, one surface of the V-shaped block 1 is provided with a V-shaped groove 11, two sides of the upper opening of the V-shaped groove 11 are provided with horizontal wing plates 13, the wing plates 13 are equidistantly provided with threaded holes 14, the bottom of the V-shaped groove 11 is provided with a rectangular groove 12, the bottom of the V-shaped block 1 is provided with a bottom plate 15 opposite to the wing plates 13, and the same threaded holes are arranged at the corresponding positions of the bottom plate 15 at equal intervals, the pressing plate 2 is in a V shape or an isosceles trapezoid shape, bolt holes 21 are arranged at the central positions of the two ends of the pressure plate 2, bolt through holes 22 are formed in the bolt holes 21, and the openings of the two bolt through holes 22 form an included angle of 90 degrees, so that the locking part can be conveniently and rapidly clamped, and the bolt 3 is matched with the threaded hole 14 on the horizontal wing plate 13 on the V-shaped block 1.
The errors of parallelism and perpendicularity between the surfaces of the V-shaped block 1 are both less than 0.01mm, the center line of the V-shaped groove 11 is in the symmetrical plane of the V-shaped block and is parallel to the bottom surface, the errors of concentricity and parallelism are both less than 0.01mm, the opening angle of the V-shaped groove 11 is 120 degrees, the error of half angle of the V-shaped groove 11 is less than 30 degrees, and the roughness Ra =0.40 μm of the V-shaped surface of the V-shaped groove 11.
The press plate 2 is made of soft aluminum.
The bolt 3 is an inner hexagon bolt and is a 9.8-level high-strength bolt.
As shown in fig. 4, the tolerance of the inner key groove is required to be not more than 0.02mm in the part of the driving crank for high-precision equipment, and there are two conventional machining methods, one of which is to directly clamp the part on a wire cutting machine for machining, but the method is difficult to find the reference of the workpiece, wastes time and has extremely low efficiency. The other type is to make a tool capable of sleeving a part, then install the tool on a workbench of a wire cutting machine tool for wire cutting machining, the tool is sleeved outside the part, in order to sleeve the part on the tool, the size of the tool is larger than that of the part, and due to tolerance accumulation, the precision of the machined part rarely meets the requirement.
After the tool clamp is adopted, due to the high precision of the tool clamp, the high-precision inner key groove linear cutting machining is carried out according to the following machining method.
A high-precision inner key groove linear cutting machining method comprises the following machining steps:
step 1: inputting a drawing on the wire cutting machine and programming.
Step 2: and (5) fixing the part 4 on the tool clamp in a loose manner.
And step 3: the part 4 and the tool clamp are integrally combined and then placed on the marble platform surface, the positions of the part and the tool clamp are adjusted, and the part 4 is fastened on the tool clamp, as shown in fig. 1.
And 4, step 4: and placing the assembly of the part 4 and the tool clamp on a workbench of the linear cutting machine tool, and aligning the horizontal direction of the tool clamp.
And 5: the electrode wire is threaded in the hole of the part 4, and the center of the hole of the part 4 is found.
Step 6: and cutting the inner key groove.
The tolerance of the finally obtained inner key groove of the part is about 0.01, and the part installed on the tool clamp meets the design requirement, the batch production is realized, and the production efficiency is improved.
And after the first linear cutting machining is carried out, the linear cutting machining of the key groove in the part is repeatedly carried out, and only the steps 2 to 6 need to be repeated.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. The utility model provides a frock clamp for keyway linear cutting processing in high accuracy which characterized in that: including V-arrangement piece, clamp plate and bolt, the one side of V-arrangement piece is opened there is the V-arrangement groove, the suitable for reading both sides in V-arrangement groove has and is provided with horizontal pterygoid lamina, the equidistance is provided with the screw hole on the pterygoid lamina, the bottom in V-arrangement groove sets up the rectangle slot, the bottom of V-arrangement piece is provided with the bottom plate that is relative to with the pterygoid lamina, and the relevant position of bottom plate also equidistance is provided with the same screw hole, the clamp plate is V-arrangement or isosceles trapezoid, the central point at the both ends of clamp plate puts and sets up the bolt hole, the bolt hole is opened there is the bolt via hole, and the opening of two bolt via holes.
2. The tooling clamp for high-precision internal keyway linear cutting machining according to claim 1, characterized in that: the errors of the parallelism and the verticality of the mutual surfaces of the V-shaped blocks are less than 0.01 mm.
3. The tooling clamp for high-precision internal keyway linear cutting machining according to claim 1, characterized in that: the center line of the V-shaped groove is in the symmetrical plane of the V-shaped block and parallel to the bottom surface, and the errors of the concentricity and the parallelism are both less than 0.01 mm.
4. The tooling clamp for high-precision internal keyway linear cutting machining according to claim 3, characterized in that: the opening angle of the V-shaped groove is 90-120 degrees.
5. The tooling clamp for high-precision internal keyway linear cutting machining according to claim 4, characterized in that: the half angle error of the V-shaped groove is less than 30 ″.
6. The tooling clamp for high-precision internal keyway linear cutting machining according to claim 1, characterized in that: the V-shaped grooves have a V-shaped surface roughness Ra <0.63 [ mu ] m.
7. The tooling clamp for high-precision internal keyway linear cutting machining according to claim 1, characterized in that: the pressing plate is made of red copper or soft aluminum.
8. The tooling clamp for high-precision internal keyway linear cutting machining according to claim 1, characterized in that: the bolts are high-strength bolts of 9.8 grade or 10.9 grade.
9. The tooling clamp for high-precision internal keyway linear cutting machining according to claim 8, characterized in that: the bolt is a hexagon socket head cap screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921602605.2U CN210967348U (en) | 2019-09-25 | 2019-09-25 | A frock clamp for high accuracy inner key groove line cutting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921602605.2U CN210967348U (en) | 2019-09-25 | 2019-09-25 | A frock clamp for high accuracy inner key groove line cutting process |
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| Publication Number | Publication Date |
|---|---|
| CN210967348U true CN210967348U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921602605.2U Active CN210967348U (en) | 2019-09-25 | 2019-09-25 | A frock clamp for high accuracy inner key groove line cutting process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560810A (en) * | 2019-09-25 | 2019-12-13 | 河南海泰机械有限公司 | High-precision inner key groove linear cutting machining method and tool clamp |
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2019
- 2019-09-25 CN CN201921602605.2U patent/CN210967348U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560810A (en) * | 2019-09-25 | 2019-12-13 | 河南海泰机械有限公司 | High-precision inner key groove linear cutting machining method and tool clamp |
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