CN218776453U

CN218776453U - A frock clamp for thin wall tiny work piece processing

Info

Publication number: CN218776453U
Application number: CN202222866685.0U
Authority: CN
Inventors: 李志强; 唐霖; 李博容; 皮振杰; 晏永宁; 尹棋琛; 赵君亚; 戴克亮; 黄泰庆; 王超
Original assignee: Xi'an Kunlun Industry Group Co ltd
Current assignee: Xi'an Kunlun Industry Group Co ltd
Priority date: 2022-10-30
Filing date: 2022-10-30
Publication date: 2023-03-31
Anticipated expiration: 2032-10-30

Abstract

The utility model relates to a frock clamp for thin wall tiny work piece processing, anchor clamps platform 2 is fixed on base 1 through U type groove, but anchor clamps platform 2 inside have a plurality of Z direction through-holes 3, Y direction through-hole 4 of wire-electrode cutting processing and lie in anchor clamps platform 2 lateral walls and close on Z direction through-hole 3's tight nut 6 in rotatable top, three interact can treat every to process in the work piece reliable and stable is fixed in every Z direction through-hole 3, realizes multithread simultaneous processing. The utility model discloses compare in traditional frock clamp easy operation, simple structure, low cost, positioning accuracy is high simultaneously, press from both sides tightly firm, stability is good and can realize multistation simultaneous processing, has promoted machining efficiency, has better application prospect.

Description

A frock clamp for thin wall tiny work piece processing

Technical Field

The utility model belongs to machining frock clamp field, in particular to frock clamp for thin wall tiny work piece processing.

Background

The modern industry has higher and higher requirements on the machining precision of workpieces, and a tool clamp is used as one of indispensable tools in the machining process and has extremely important influence on the machining precision of the workpieces. The traditional tool clamp for clamping a tiny workpiece is complex in structure, difficult to operate, easy to loosen the workpiece, poor in fixing effect on a tiny and thin workpiece, difficult to guarantee the precision of the workpiece to be machined, and especially difficult to solve the key technical problem of machining blind holes in the tiny workpiece. Meanwhile, the effect of simultaneously processing a plurality of workpieces cannot be realized, and the processing efficiency is difficult to ensure.

Referring to fig. 7, patent publication No. CN214559201U discloses a tooling clamp for processing micro-miniature parts, which includes a fixing block 1, an anti-slip film 2, a square groove 3, an adjusting rod 4, a sliding groove 5, a fixing bolt 6, an anti-slip pad 7, a silicone film 8, an annular plate 9, a bearing 10, a bearing 11, a spring 12, a positioning block 13, an arc-shaped groove 14 and a silicone film 15. The outer surface of the lower end of the fixing block 1 is fixedly connected with an anti-slip pad 7, and the outer surface of one side of the fixing block 1 is in threaded connection with a fixing bolt 6. A first bearing 10 and a second bearing 11 are fixedly connected to the outer surface of the fixing bolt 6, an annular plate 9 is fixedly connected to the outer surface of one end of the first bearing 10, the second bearing 11 is located at one end of the first bearing 10, and a spring 12 is fixedly connected to the outer surface of one end of the second bearing. The outer surface of one end of the annular plate 9 is fixedly connected with a first silica gel membrane 8. The outer surface of the upper end of the fixed block 1 is provided with a square groove 3, and the inner surface of one end of the square groove 3 is fixedly connected with an anti-slip film 2. The corresponding arc-shaped groove can be selected according to the size of the part for positioning and processing, but the clamp has the following defects:

the clamp has a complex structure, too many constituent elements and high manufacturing and assembling cost;

the clamps are fixedly connected by using a large amount of adhesive, such as an anti-slip film and a square groove, a silica gel film and an arc groove, and the like, so that the reliability is poor, the clamps are easy to fall off in use, and the clamping stability is influenced;

the clamp is made of nonmetal materials such as a silica gel film, an anti-skid pad and an anti-skid film, is corroded by cutting fluid in the machining process, is easy to age, influences the integral clamping performance of the clamp and easily causes scrapping of machined workpieces;

the clamp can clamp one processing workpiece at each time, and the clamp needs to be repeatedly clamped and disassembled in the production process, so that the processing efficiency is influenced.

Disclosure of Invention

The problem that exists to above-mentioned current frock clamp, the utility model provides a special frock clamp of tiny work piece processing of thin wall has solved the key technological problem that blind hole was processed on certain difficult small work piece, and the location is accurate, and the clamping is reliable, can realize multithread processing simultaneously, has reduced the clamping number of times, has improved production efficiency.

The technical scheme of the utility model is that: a tool clamp for processing thin-wall small workpieces comprises a base 1, a clamp platform 2, a support rod 5 and a jacking nut 6;

the fixture platform 2 is positioned on the base 1, the top surface of the fixture platform 2 is provided with a plurality of first through holes 3, and the side wall of the fixture platform is provided with a plurality of second through holes 4 and a plurality of jacking holes; the axes of the second through hole 4 and the plurality of tightening holes are parallel, and the axes of the first through hole 3 and the second through hole 4 are vertical to each other; the first through hole 3 and the second through hole 4 are communicated with each other;

a workpiece to be processed is placed in the first through hole 3, a support rod 5 is placed in the second through hole 4, and a jacking nut 6 is screwed into the jacking hole;

the supporting rod 5 and the jacking nut 6 can support and jack the workpiece to be processed which is placed in the first through hole 3.

The utility model discloses further technical scheme is: l-shaped notches are formed in two ends of the clamp platform 2, and U-shaped grooves are formed in the notches and used for being fixed on the base 1 through screws and nuts.

The utility model discloses further technical scheme is: and the vertical distance between the second through hole 4 and the bottom of the clamp platform 2 is smaller than the vertical distance between the jacking hole and the bottom of the clamp platform 2.

The utility model discloses further technical scheme is: the supporting rod 5 is in clearance fit after being inserted into the second through hole 4, a workpiece to be processed is arranged on the supporting rod 5, and a jacking nut 6 is screwed into the jacking hole to jack and fix the workpiece to be processed.

The utility model discloses further technical scheme is: the support rod 5 is also used for discharging cutting chips and dust in the second through hole 4.

The utility model discloses further technical scheme is: the first through hole 3 is processed and formed in a linear cutting mode.

The utility model discloses further technical scheme is: the second through hole 4 is processed and formed in a linear cutting mode.

The utility model discloses further technical scheme is: the hole shape of the first through hole 3 is matched with the cross section shape of the workpiece blank body to be processed.

Effects of the invention

The technical effects of the utility model reside in that: this device easy operation and simple structure, cost are lower, and positioning accuracy high clamp is tight firm, and stability is good and realized multistation simultaneous processing, has promoted machining efficiency, has better application prospect, and concrete effect is as follows:

1. the utility model discloses a preliminary fixed of first through-hole in the anchor clamps platform, the supporting role of bracing piece in the second through-hole to and the adjustable of anchor clamps lateral wall top tight nut to the tight effect in top of work piece, realized that the opposition goes into treating in the first through-hole and processes the reliable and stable fixed of work piece, lock the work piece completely among anchor clamps, realized the quick clamping to the work piece, improved the efficiency of clamping.

2. The supporting rod in the second through hole can be freely pulled while supporting the workpiece, so that impurities such as cutting chips, dust and the like generated in the through hole due to machining can be timely discharged, and the precision of the clamp is maintained.

3. The fixture platform is provided with a plurality of first through holes capable of accommodating workpieces to be machined, so that simultaneous clamping, simultaneous fixing and simultaneous multi-thread machining of a plurality of workpieces can be realized. The machining efficiency of thin-wall small workpieces is greatly improved, and the problem of low machining efficiency is solved. And the special fixture has no expensive components, relatively low manufacturing cost and lower cost.

Drawings

FIG. 1 is a schematic perspective view of the thin-wall small workpiece processing special fixture of the present invention;

FIG. 2 is a front cross-sectional view of FIG. 1;

FIG. 3 is a side sectional view of FIG. 1;

FIG. 4 is a schematic structural diagram of a blank of a workpiece to be processed;

FIG. 5 is a front view of the overall layout of a formed workpiece;

FIG. 6 is a bottom view of the formed workpiece;

FIG. 7 is a diagram showing a structure of a device in the background art

Description of reference numerals: 1-a base, 2-a clamp platform, 3-a first through hole, 4-a second through hole, 5-a support rod, 6-a puller nut, 7-a workpiece blank to be processed and 8-a blind hole.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Referring to fig. 1-6, a tool clamp for thin-wall thin workpiece machining comprises a base 1, a clamp platform 2 and a support rod 5.

Two ends of the clamp platform 2 are provided with T-shaped grooves, the T-shaped grooves are provided with U-shaped grooves, and the clamp platform 2 is fixed on the base 1 with the T-shaped grooves through T-shaped groove screws and the U-shaped grooves, so that the stability of the overall clamp is guaranteed.

Defining the slotting direction of the U-shaped groove as an X direction, the vertical hole-forming direction of the top surface of the clamp platform 2 as a Z direction, and the direction vertical to the X and Z directions as a Y direction, and forming holes on the side wall of the clamp platform 2 along the Y direction; wherein the Y-direction hole is defined as a second through hole 4, and the Z-direction hole is defined as a first through hole 3.

In this embodiment, four first through holes 3 are distributed on the top surface of the clamp platform 2, and are distributed in a square shape. The side wall of the clamp platform 2 is provided with two second through holes 4, and each through hole is communicated with the two first through holes 3. Two jacking holes are symmetrically formed in the side wall of the clamp platform 2 at the corresponding position of each first through hole 3.

The two support rods 5 are arranged in the embodiment and are respectively arranged in the two second through holes 4 of the fixture platform 2, so that the workpiece to be processed is supported, the workpiece to be processed is prevented from sliding off the fixture platform 2, and the reliability is improved. After the machining is finished, the clamp can be pulled flexibly, is convenient to detach and clean chips, and plays a role in daily maintenance of the clamp.

The shape of the first through hole 3 is consistent with the outline of the workpiece blank 7 to be processed, so that the workpiece to be processed can be completely embedded into the first through hole. After several working procedures, the top surface of the workpiece blank 7 to be processed forms an arc surface, see the top surface of the workpiece in fig. 5. The workpiece to be processed with the arc-shaped top surface is placed in the first through hole and placed on the supporting rod 5, the arc surface is attached to the arc-shaped rod surface of the supporting rod, preliminary fixation is achieved, and after processing is conducted, the blind hole with the shape of the bottom in the figure 5 is finally obtained.

Four first through holes 3 are formed in the clamp platform 2, and four placed workpieces can be clamped and machined simultaneously.

The first through hole 3 and the second through hole 4 are processed and formed in a linear cutting mode.

The jacking nut 6 is arranged on the side wall of the clamp platform 2 and close to the first through hole 3, and the workpiece to be processed can be stably and reliably limited by screwing. Under the combined action of the support rod 5, the first through hole 3 and the tightening nut 6, the workpiece to be processed is completely locked, and then a blind hole 8 with the diameter larger than the diameter of the middle part of the workpiece is processed on the workpiece to be processed.

The jacking nut 6 is arranged on the side wall of the clamp platform 2 and close to the Z-direction through hole 3, and the workpiece to be processed can be stably and reliably limited by screwing. Under the combined action of the supporting rod 5, the Z-direction through hole 3 and the jacking nut 6, a workpiece to be processed is completely locked, and then a blind hole 8 with a diameter slightly larger than the diameter of the middle part of the workpiece is processed.

The blind hole 8 is a feature which is processed in the middle of the workpiece to be processed and has a larger hole diameter than the circular diameter of the middle of the workpiece to be processed, and is used for installing a certain device.

Claims

1. A tool clamp for processing thin-wall small workpieces is characterized by comprising a base (1), a clamp platform (2), a support rod (5) and a puller nut (6);

the clamp platform (2) is positioned on the base (1), the top surface of the clamp platform (2) is provided with a plurality of first through holes (3), and the side wall of the clamp platform is provided with a plurality of second through holes (4) and a plurality of jacking holes; the axes of the second through hole (4) are parallel to the axes of the plurality of tightening holes, and the axes of the first through hole (3) and the second through hole (4) are vertical to each other; the first through hole (3) and the second through hole (4) are communicated with each other;

a workpiece to be machined is placed in the first through hole (3), a supporting rod (5) is placed in the second through hole (4), and a jacking nut (6) is screwed into the jacking hole;

the supporting rod (5) and the jacking nut (6) can support and jack the workpiece to be processed which is placed into the first through hole (3).

2. A tool clamp for machining thin-walled small workpieces according to claim 1, characterized in that L-shaped notches are formed in two ends of the clamp platform (2), and U-shaped grooves are formed in the notches and used for being fixed on the base (1) through screws and nuts.

3. The tool clamp for machining thin-walled small workpieces as claimed in claim 1, wherein the vertical distance between the second through hole (4) and the bottom of the clamp platform (2) is smaller than the vertical distance between the jacking hole and the bottom of the clamp platform (2).

4. The tooling clamp for thin-wall and small workpiece machining according to claim 1, characterized in that the support rod (5) is in clearance fit after being inserted into the second through hole (4), the workpiece to be machined is placed on the support rod (5), and the tightening nut (6) is screwed into the tightening hole to tighten and fix the workpiece to be machined.

5. A tool holder for thin-walled fine workpiece machining according to claim 1, characterized in that the support rod (5) is also used for discharging chips and dust in the second through hole (4).

6. A tool clamp for machining thin-walled small workpieces according to claim 1, wherein the first through hole (3) is formed by wire cutting.

7. A tool clamp for machining thin-walled small workpieces according to claim 1, wherein the second through hole (4) is formed by wire cutting.

8. The tool clamp for machining thin-walled small workpieces as claimed in claim 1, characterized in that the hole shape of the first through hole (3) is matched with the cross section shape of a workpiece blank body to be machined.