CN210255193U

CN210255193U - Special tool for milling Y-shaped part with hole

Info

Publication number: CN210255193U
Application number: CN201920932306.9U
Authority: CN
Inventors: 刘小三
Original assignee: SUZHOU YIKE ELECTROMECHANICAL CO Ltd
Current assignee: Jiangsu Yike Aviation Technology Co ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-07
Anticipated expiration: 2029-06-20

Abstract

The utility model relates to a special frock of milling process of Y type area hole part, including bottom plate, dog and the clamping device of setting on the bottom plate, clamping device and dog between for pressing from both sides tight station the bottom plate of pressing from both sides tight station intermediate position on set up first locating hole in set up the rhombus round pin. Through the arrangement of the structure, the workpiece can be quickly clamped and positioned, and meanwhile, the workpiece can be machined on the surface and the hole of the workpiece on the same reference without re-clamping when different positions are machined, so that the overall precision of the workpiece is improved; common staff can operate the device, so that the labor cost is saved; the abrasion to the workpiece is small, and the qualification rate of the workpiece is improved.

Description

Special tool for milling Y-shaped part with hole

Technical Field

The utility model belongs to the technical field of the machining technique and specifically relates to a special frock of Y type area hole part milling process is related to.

Background

In the field of machining, a plurality of special-shaped parts can be formed, holes can be punched on the special-shaped parts, the structure of a workpiece is complex, the relation between each hole and the shape dimension of some precision equipment is high, five-axis and three-axis machining centers are required to be used for machining, the requirement on the shape dimension of a central hole and a workpiece is met by five-axis machining, and the requirement on the coaxiality of the holes is met by three-axis machining of the reverse side of the workpiece. The workpiece is clamped by a profiling aluminum jaw vice, the workpiece needs to be repeatedly positioned for many times, so that the precision is poor, the position and the size of a related hole are difficult to guarantee, and each workpiece needs to be aligned again to guarantee the size. The main defects are that 1, the clamping reaction speed is low, and for each workpiece, workers need to align the center of the workpiece through a lever dial indicator, so that the work preparation time is long; 2. the fault tolerance rate is low, the skill levels of the staff are different, each staff can formally process the workpiece only through professional training, and the workpiece rejection rate is high; 3. the frock wearing and tearing, work piece are collided with, are damaged, because of work piece one side has already been processed and has been accomplished, in order to avoid the work piece to press from both sides the damage, adopt the aluminium mouth vice mode to press from both sides tightly, and the frock wearing and tearing are very fast, cause the work piece clamping unstability, and the work piece needs the processing size undulant to increase.

Disclosure of Invention

The utility model aims to solve the technical problem that a special frock of Y type band hole part milling process that only needs clamping can realize the processing of work piece and guarantee size precision is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a special frock of milling process of Y type area hole part, includes the bottom plate, sets up dog and clamping device on the bottom plate, clamping device and dog between be the tight station of clamp of fixed work piece the bottom plate of the tight station intermediate position of clamp on set up first locating hole set up the rhombus round pin in the first locating hole.

More specifically, the clamping device is a clamp with the model DK 2-VT-T.

More specifically, the surface of the clamp in contact with the workpiece is an aluminum pad to prevent the workpiece from being scratched.

Further specifically, the diamond pin head adopts circular arc transition.

Further specifically, the first positioning hole is a counter bore, the diamond pin comprises a first cylinder and a second cylinder, the diameter of the first cylinder is larger than the diameter of an inner hole of the counter bore and smaller than the diameter of an outer hole of the counter bore, and the second cylinder is inserted into the inner hole of the counter bore and is in interference fit with the inner hole of the counter bore; the upper part of the first column body is in a diamond shape.

More specifically, the bottom plate is provided with at least two second positioning holes, and a cylindrical pin is arranged in each second positioning hole.

More specifically, a third positioning hole is formed in the bottom plate, a fourth positioning hole is formed in the stopper, and positioning pins are arranged in the third positioning hole and the fourth positioning hole and used for positioning the stopper on the bottom plate.

Further specifically, a tool setting point is arranged on the bottom plate.

The utility model has the advantages that: through the arrangement of the structure, the workpiece can be quickly clamped and positioned, and meanwhile, the workpiece can be machined on the surface and the hole of the workpiece on the same reference without re-clamping when different positions are machined, so that the overall precision of the workpiece is improved; common staff can operate the device, so that the labor cost is saved; the abrasion to the workpiece is small, and the qualification rate of the workpiece is improved.

Drawings

Fig. 1 is a schematic top view of the present invention;

fig. 2 is a schematic front view of the present invention;

fig. 3 is a schematic view of the diamond pin of the present invention.

In the figure: 1. a base plate; 2. a workpiece; 3. a clamping device; 4. a stopper; 5. a first positioning hole; 6. a diamond pin; 7. an aluminum cushion block; 8. a second positioning hole; 9. a fourth positioning hole; 51. an inner bore; 52. an outer bore; 61. a first cylinder; 62. a second cylinder.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the special tool for milling a Y-shaped part with a hole comprises a bottom plate 1, a stop block 4 and a clamping device 3, wherein the stop block 4 and the clamping device 3 are arranged on the bottom plate 1, a clamping station for fixing a workpiece 2 is arranged between the clamping device 3 and the stop block 4, a first positioning hole 5 is formed in the bottom plate 1 at the middle position of the clamping station, and a diamond-shaped pin 6 is arranged in the first positioning hole 5; the diamond-shaped pin 6 shown in fig. 3 is composed of a first cylinder 61 arranged above and a second cylinder 62 arranged below the first cylinder 61, and the second cylinder 62 is inserted into the first positioning hole 5 and is in interference fit with the first positioning hole 5; according to the shape of the Y-shaped part with the hole, the first positioning hole 5 is set to be a countersunk hole, the countersunk hole comprises an inner hole 51 at the lower part and an outer hole 52 at the countersunk part, the second cylinder 62 is inserted into the inner hole 51 and is in interference fit with the inner hole 51, the aperture of the inner hole 51 is phi 6, and the workpiece 2 is better supported and positioned; and the diameter of first cylinder 61 is greater than the diameter of hole 51 and is less than the diameter of outer hole 52 for first cylinder 61 is in the countersunk head all the time, can guarantee that it can not downstream, and the shape of rhombus sets up on first cylinder 61's cylinder simultaneously, makes first cylinder 61 overlook its shape from the top and be the rhombus, and the top of first cylinder 61 sets up to the circular arc transition, makes it can not fish tail work piece 2 when contacting with work piece 2.

The combination of the first positioning holes 5 and the diamond pins 6 is at least one group, the combination is determined according to the specific structure, the hole positions and the number of the workpieces 2, the diamond pins 6 are adopted to prevent the workpieces 2 from rotating, the use of cylindrical pins is saved, one diamond pin 6 can replace 2 cylindrical pins, and the complexity of components and structures on the tool is reduced.

As shown in fig. 1, a second positioning hole 8 with a diameter of 12 is processed on a bottom plate 1, the bottom plate 1 is positioned with a workbench of a milling machine by matching with a cylindrical pin and is fixed by a bolt, and two groups of the second positioning holes 8 and the cylindrical pin are combined for accurately positioning the bottom plate; meanwhile, a tool setting point is arranged on the bottom plate 1, so that the tool setting efficiency of the milling machine is improved, and the production efficiency is improved.

The clamping device adopts the clamp of the model DK2-VT-T, the aluminum cushion block 7 is arranged at the contact position of the clamp and the workpiece 2, the aluminum cushion block 7 is in surface contact with the workpiece 2 during working, and due to the self characteristic of the aluminum material, the surface of the workpiece 2 can be well protected from being scratched when in surface contact with the workpiece 2.

A third positioning hole (not marked) is formed in the bottom plate 1, a fourth positioning hole 9 is formed in the stop block 4, the third positioning hole is aligned with the fourth positioning hole 9 when the stop block 4 is positioned, and a positioning pin is inserted between the third positioning hole and the fourth positioning hole 9 to position the third positioning hole and the fourth positioning hole; the combination of the third positioning hole, the fourth positioning hole 9 and the positioning pin is two groups, so that the stop block 4 can be accurately positioned.

The clamping device 3 can also adopt a form of pressing plate combination, the pressing plate combination comprises a pressing plate and a supporting column arranged in the middle of the pressing plate, one side of the pressing plate is used for clamping the workpiece 2, a screw capable of being adjusted up and down is arranged below the other side of the pressing plate, and the screw is used for jacking the other side of the pressing plate, so that the pressing of the pressing plate and the workpiece 2 is realized; the number of platen combinations may be 2, 3 or 4, depending on the particular shape of the workpiece 2.

In conclusion, the structure can realize the rapid clamping and positioning of the workpiece 2, and meanwhile, the surface and the hole of the workpiece 2 can be machined on the same reference without re-clamping when different positions are machined, so that the overall precision of the workpiece 2 is improved; common staff can operate the device, so that the labor cost is saved; the abrasion to the workpiece 2 is small, and the qualification rate of the workpiece 2 is improved. The phenomenon that workpieces 2 are bad in batches can be solved, the phenomenon that the sizes of products are unstable due to the fact that the workpieces 2 are difficult to clamp and inaccurate to position can be solved through the mode that the center is positioned and the side faces are clamped, and clamping and machining efficiency is improved.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a special frock of milling process of Y type area hole part, includes bottom plate (1), sets up dog (4) and clamping device (3) on bottom plate (1), clamping device (3) and dog (4) between be the tight station of clamp of fixed work piece (2), its characterized in that the bottom plate (1) of tight station intermediate position on set up first locating hole (5) in set up diamond-shaped round pin (6).

2. The special tool for milling the Y-shaped part with the hole according to claim 1, wherein the clamping device (3) is a clamp with the model number DK 2-VT-T.

3. The special tool for milling the Y-shaped part with the hole according to claim 2, wherein the surface of the clamp in contact with the workpiece (2) is an aluminum cushion block (7) to prevent scratching the workpiece.

4. The special tool for milling the Y-shaped part with the hole according to claim 1, wherein the head of the diamond pin (6) adopts arc transition.

5. The special tool for milling the Y-shaped part with the hole according to claim 1, wherein the first positioning hole (5) is a counter bore, the diamond-shaped pin (6) comprises a first cylinder (61) and a second cylinder (62), the diameter of the first cylinder (61) is larger than the diameter of an inner hole (51) of the counter bore and smaller than the diameter of an outer hole (52) of the counter bore, and the second cylinder (62) is inserted into the inner hole (51) of the counter bore and is in interference fit with the inner hole (51) of the counter bore; the upper part of the first cylinder (61) is rhombic.

6. The special tool for milling the Y-shaped part with the hole according to claim 1, wherein at least two second positioning holes (8) are formed in the bottom plate (1), and a cylindrical pin is arranged in each second positioning hole (8).

7. The special tool for milling the Y-shaped part with the hole as claimed in claim 1, wherein a third positioning hole is formed in the bottom plate (1), a fourth positioning hole (9) is formed in the stopper (4), and positioning pins are arranged in the third positioning hole and the fourth positioning hole (9) and used for positioning the stopper (4) on the bottom plate (1).

8. The special tool for milling the Y-shaped part with the hole according to claim 7, wherein a tool setting point is arranged on the bottom plate (1).