KR100948011B1 - Fixing apparatus for planar cutting processing - Google Patents

Abstract

The present invention, in the workpiece to be fixed, the vice having a top inserting groove (42) is inserted into the workpiece (S) is fixed between the clamping device 20 and the fixed support 30 to tighten the side Position the part 40, but below the upper end insertion groove 42 of the vise part 40 is formed in the front and rear open cutting groove 44, the free opening end of the upper center of the upper insertion groove 42 The first and second clamp stone pieces P1 and P2 are formed, and at the bottom end of the upper insertion groove 42, a seating stone piece P3 for seating the workpiece S is formed.

Work piece, fixture, face cutting

Description

FIXING APPARATUS FOR PLANAR CUTTING PROCESSING}

The present invention relates to a workpiece holding device, and more particularly to a workpiece holding device that can be fixed by cutting the workpiece.

Nowadays, a wide variety of shafts, screws, bolts and similar parts are manufactured and used throughout the industry. Among the parts, proper cutting such as milling, turning, grinding, tapping, facing, drilling, boring, reaming, etc. There are many cases where the cutting process is performed once again and manufactured in a form suitable for the intended use.

In performing the cutting of the original part, the workpiece fixing device is preferably used, and the workpiece fixing device contributes to stable cutting of the workpiece, reduction of processing cost, and improvement of productivity.

Among the workpiece holding devices, the workpiece holding device for plane processing for fixing a workpiece that requires a plane cutting process has a cross section of an insertion groove for inserting and inserting the workpiece similar to that of the workpiece. When the workpiece is fixed to the insertion groove, the workpiece is cut by the plane cutting tool.

However, even if the workpieces to be cut by the plane are of the same specification, each size is not completely the same and there are some tolerances. For example, even if the shaft is a workpiece of the same standard, the diameter of the shaft may have a tolerance of about 0.01 to 0.02 mm.

Therefore, when the workpiece is cut into the insert groove of the workpiece holding device for planar processing and the plane is cut, there is a lot of error in the height from the bottom of the processed workpiece to the processing plane. In the case of a workpiece whose height from the bottom of the workpiece to the working plane portion requires a very precise error range value, the size tolerance in the same-standard workpiece as described above may cause a problem. In other words, the height from the bottom of each plane-processed workpiece to the plane may not fall within the desired precision error range.

Accordingly, an object of the present invention is to provide a workpiece fixing device for planar processing such that the height from the bottom of the plane-processed cuttings to the processing plane may fall within a desired precision error range even if there is a tolerance in the size of the workpiece of the same standard. It is.

In accordance with the above object, the present invention, in the workpiece to be fixed, the upper insertion groove that is inserted into the workpiece (S) is fixed between the clamping device 20 and the fixed support 30 to tighten on the side Positioning the vise portion 40 having a 42, but below the upper insertion groove 42 of the vise portion 40 is formed in the front and rear open cutting groove 44, the center of the upper insertion groove 42 The first and second clamp stone pieces P1 and P2 are formed at the free open end of the upper side, and the seating stone pieces P3 are formed at the lower end of the upper insertion groove 42 to seat the workpiece S. It is characterized by.

The present invention allows the height from the bottom of the planarly processed workpieces to the machining plane to fall within the desired precision error range even if there is a tolerance in the size of the workpiece of the same standard.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the case of the existing workpiece holding device for planar processing, the center of the insertion groove for inserting the workpiece is always the machining reference point. Therefore, even if the operator inserts a workpiece of the same standard into the insert groove of the planar workpiece holder, if the diameter of the workpiece is different, the error of the height from the bottom of the cut workpiece to the machining plane is Will occur.

Therefore, the present invention implements the workpiece fixing device for planar processing such that the error of the height from the bottom of the processed cutting to the processing plane is hardly generated.

1 is a perspective view of a planar workpiece to be fixed according to an embodiment of the present invention, Figure 2 is an exploded perspective view of Figure 1, Figures 3 to 6 are the planar workpieces according to an embodiment of the present invention It is a figure for demonstrating the state to fix. In Figures 3 to 6, Figure 3 is a plan sectional view of the workpiece holding device for planar processing, Figure 4 is a front sectional view of the workpiece holding device for a planar processing, Figure 5 is a top cutting groove of the workpiece to the vise portion A main portion enlarged front sectional view showing an inserted state, and FIG. 6 is a main enlarged front sectional view for explaining a state in which the workpieces are fixed and inserted into the upper insertion groove of the vise portion.

And, Figure 7 is a view showing a state in which the cutting of the workpieces fixed to the workpiece fixing device for the planar processing, Figure 8 is a perspective view of the workpiece and the cut workpiece cut in accordance with an embodiment of the present invention. .

The workpiece S of the present invention is preferably a round rod shape such as a shaft as shown in FIG. 8A, and in FIG. 8B, the workpiece S according to an example of the present invention. The upper surface of (S) is cut in a plane to show a cutting S 'made of a shaft having a processing plane 60.

In the embodiment of the present invention, the planar workpiece-fixed device 1 may have all of the planar-processed workpieces as shown in FIG. 8 (b) even if there is a tolerance in the size of the workpiece S of the same standard. S 'fixes the workpiece S so that the height h from its bottom to the working plane 60 is about the same, i.e., within the precision error range value desired by the operator.

In the present invention, the planar workpiece-fixing device 1 clamps one or more workpieces S to be plane-processed at a time, while arranging the workpieces S to the left and right, and tightens the sides thereof. As a configuration for firmly fixing the workpieces S by the clamping force, the base plate 10, the support 20, the vise part 40, and the clamp 30 are provided.

On one side of the upper surface of the bottom plate 10, the support 20 is bolted and installed, and the side of the support 20 has a vise portion having upper insert grooves 42 for inserting the workpieces S ( 40 and the sinusoidal tool 30 having a sinusoidal bolt 32 are installed side by side in sequence. At this time, the vise part 40 and the clamping port 30 are also fastened and installed on the upper surface of the bottom plate 10 like bolts 20. Then, the stopper plate body 25 is fastened and installed on the front surface of the bottom plate 10 so that the front end of the workpiece S inserted from the rear of the upper insertion groove 42 can no longer move forward.

The support 20 of the metal material is formed so that a plurality of upper insertion grooves 42 for inserting the workpieces (S), the lower portion of each of the upper insertion grooves (42) in the front and rear open cutting groove ( 44) is configured to be incised. In addition, the lower end of the cutout 44 is configured to form an extension 46 having a circular cross section.

Since the plurality of incision grooves 44 having the upper insertion grooves 42 are formed in the support 20 made of metal, the plurality of side plates are integrally spaced apart from each other at the bottom of the main body of the support 20. When the workpiece S is inserted and seated in each of the upper insertion grooves 42 of the incision groove 44 in this state, the side plate adjacent to the workpiece S is formed. The sieves connect with each other.

In forming the support 20 having the upper insertion groove 42, the upper insertion grooves 42 are formed to be processed so that the workpieces S are arranged side by side. Thus, in the state where a plurality of workpieces S to be machined into the plane are inserted into the upper insertion grooves 42 (see FIG. 3), the clamping bolt 32 of the clamping device 30 is positioned at the upper position of the one side. When the clamping force is applied from the side, the upper part of the side plate is bent to the side with the lower extension portion 46 of each incision groove 44 as the bending axis, and the clamping force is adjacent to the adjacent side plate through the workpiece S. It is transmitted serially to the sieve one after another to allow all the cuts S inserted in each of the upper insertion grooves 42 between the side plates to be clamped at once.

On the other hand, the side of the vise part 40, the metal fittings 30 having a clamping bolt 32 as a metal material is installed in the joint, the inner side that is interviewed to the outer surface and the clamping port 30 A hole 34 horizontally penetrating the liver is formed, and the clamping bolt 32 is screwed so that the clamping bolt 32 can protrude in the direction of the bias part 40 to the hole 34 of the clamping hole 30. At this time, the hole 34 is tightened by pressing the side points of the vise portion 40 at the height where the tightening bolt 32 is screwed to the clamping port 30 is located the upper insertion groove 42 of the vise portion 40 When the clamping bolt 32 is tightened, the tip portion of the clamping bolt 32 protrudes toward the bias part 4 side, and the vise part in which the upper insertion groove 42 of the vise part 40 is located. The side points of 40 are pressed.

In addition, in the embodiment of the present invention, in order to prevent the error of the height from the bottom of the cutting plane portion 60 to the processing plane portion 60, all of the plane-cut workpieces S 'are hardly generated. Improve the structure of the upper insertion groove (42).

5 and 6 show an enlarged view of the main portion showing the structure of the upper insertion groove 42 of the vise portion 40 according to an embodiment of the present invention.

Referring to Figures 5 and 6 will be described in more detail the structure of the upper insertion groove 42 of the vise portion 40 in accordance with an embodiment of the present invention. Since the upper insert groove 42 is an open structure in which the upper and lower portions are narrower than the insert groove portion 42, the workpiece S inserted into the upper insert groove 42 enters from the rear of the upper insert groove 42. .

In the upper insertion groove 42, bar protrusions P1, P2, and P3 of three points are formed in accordance with an embodiment of the present invention. The upper opening is freely opened based on the center C of the upper insertion groove 42. At the end, the first and second clamp stone pieces P1 and P2 are formed, and at the bottom end of the upper insertion groove 42, a seating stone piece P3 for mounting the workpiece S is formed. The seating protrusion piece P3 formed at the lowermost end of the top insertion groove 42 is positioned directly below the center C of the top insertion groove 42, and is cut in one side downward of the seating protrusion piece P3. It is comprised so that 44 may be formed.

In the example of FIGS. 5 and 6, although the first and second workpieces S1 and S2 of the same size are inserted into each of the adjacent adjacent upper insertion grooves 42, the first workpiece ( The case where the diameter (phi) 2 of the 2nd to-be-processed object S2 is slightly larger than the diameter (phi) 1 of S1) is illustrated.

Referring to FIGS. 5 and 6, when the first and second workpieces S1 and S2 are inserted into the upper insertion grooves 42, the first and second workpieces S1 may be used. A bottom surface of S2 is seated on each seating projection piece P3 in the upper insertion groove 42. Then, the width k1 exposed to the upper opening side of the upper insertion groove 42 in relation to the diameter φ2 of the second workpiece S2 being slightly larger than the diameter φ1 of the first workpiece S1. Comparing (k2), the exposure width k2 of the second workpiece S2 is larger than the exposure width k1 of the first workpiece S1.

In this way, while the first to-be-cut (S1) and the second to-be-cut (S2) are inserted into each of the upper insertion grooves (42), the clamping bolts (30) of the clamping bolt can be given from the side. 6, the first and second clamp protrusion pieces P1 and P2 positioned at the upper free opening end of the upper insertion groove 42 are the first and second workpieces S1 and S2. By clamping the first and second workpieces (S1) (S2) is firmly fixed in the upper insertion groove (42).

When the surface is cut in this state, the first workpiece S1 will be made of the first workpiece S1 'removed by the exposure width k1, and the second workpiece S2 will be exposed. It will be made of a second workpiece (S2 ') removed by k2). In addition, the processing plane 60 may be formed on the upper surfaces of the first and second cutting objects S1 ′ and S2 ′.

Now, when the worker inserts the workpiece S into the workpiece fixing device 1 of the present invention, and describes the operation process of stably cutting the workpiece S in detail as follows. In the following description, the first and second workpieces S having different diameters φ1 and φ2 illustrated in FIGS. 5 and 6 will be described as an example.

The operator inserts the cut materials S including the cut materials S1 and S2 into each of the upper insertion grooves 42 of the vise part 40, and then, the clamp 30 When the clamping bolt 32 of the clamping force is applied to the side of the vise portion 40 at the height where the upper insertion groove 42 of the vise portion 40 is located, accordingly as shown in FIG. Likewise, the upper part of the side plate body is slightly bent sideways with the lower end extension 46 of each incision groove 44 as a bending axis, and the clamping force is serially in turn to the adjacent side plate body through the workpiece S. And all the cuts S including the first and second cuts S1 and S2 inserted into the upper insertion grooves 42 between the side plates are clamped at once. When a series of clamping forces are applied to the sides, the entire clamping work (S) is clamped and clamped with a much smaller clamping force than the sum of the clamping forces for fixing the workpieces individually. Can be fixed.

Since the serial clamping action in the side clamps the cutting object S of the upper inserting grooves 42 in a state where the side plates are bent little by little, the center line connecting the centers of all the inserting grooves 42 is arranged in a line from side to side. By forming, the upper and lower plane cutting of the workpiece S is very advantageous for the ball. This is because all the workpieces S that have been planar cut have their working planes 60 having a uniform height from the axis centerline.

5 and 6, the first and second workpieces S1 and S2 are inserted into the upper insertion groove 42, so that each seating stone piece in the upper insertion groove 42 is provided. First and second workpieces S1 and S2 having different diameters φ1 and φ2 in P3 are seated, and the first and second workpieces S1 based on the seating surface. S2 is clamped and fixed by the first and second clamp protrusion pieces P1 and P2. Therefore, the exposed widths k1 and k2 of the first and second workpieces S1 and S2 exposed to the upper opening of the upper insertion groove 42 are different from each other, but the second workpiece S2 The exposure width k2 is larger than the exposure width k1 of the first workpiece S1.

In this state, as shown in FIG. 7, the operator can planar cut the upper surface of the workpiece S using the planar cutting tool 50.

When the plane cutting is completed by the same operation as in FIG. 7, as in the example of FIG. 6, the first workpiece S1 is made of the first workpiece S1 ′ removed by the exposure width k1. The second workpiece S2 is made of the second workpiece S2 'removed by the exposure width k2. Thus, the heights h of the first and second workpieces S1 ′ and S2 ′ from the bottom to the processing plane 60 are almost the same.

When the upper surface of the workpiece S including the first and second workpieces S1 and S2 mentioned as an example is planarly cut, the workpiece S of FIG. As shown in (b), the workpiece S 'made of a shaft having a working plane 60 on the top surface is completed.

When the cutting object S 'having the working plane 60 is completed, the worker releases the clamping bolt 32 of the clamping tool 30 and is inserted into the insertion grooves 44 of the die part 40. The work is completed by taking out the cutting object S '. All of the plurality of cuttings S 'thus completed are almost equal in height h from the bottom to the processing plane 60. In other words, all the cutting (S1 ') (S2') (S ') is the height (h) from the bottom to the working plane 60 can fall within the precision error range value desired by the operator.

In the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the equivalent of claims and claims.

The present invention can be used in the workpiece holding device for a variety of cutting.

1 is a perspective view of an apparatus for fixing a workpiece for planar processing according to an embodiment of the present invention;

2 is an exploded perspective view of FIG. 1;

3 is a plan sectional view of the workpiece holding device for planar processing;

4 is a front sectional view of the workpiece holding device for planar processing;

5 is an enlarged front sectional view of the main portion showing a state in which the cutting objects are inserted into the upper insertion groove of the vise part;

6 is an enlarged front sectional view of a main portion for explaining a state in which the workpieces are fixed and inserted into the upper insertion groove of the vise part and a planar cutting state;

FIG. 7 is a view showing a state in which plane-cutting the workpieces fixed to the workpiece-fixing device for planar processing;

8 is a perspective view of the workpiece and the workpiece cut in plan view according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

(1)-Workpiece fixture (10)-Bottom plate

(20)-Support (30)-Prison

(32)-Sin Bolt (40)-Visebu

(42)-Top Insert Groove (44)-Incision Groove

(46)-open (48)-machined groove

(50)-plane cutting tool (60)-machining plane

Claims (3)

In the workpiece holding device, Position the vise portion 40 having an upper insertion groove 42 into which the workpiece S is inserted and fixed between the sinusoidal sinus 20 and the fixed support 30 fixed at the side, but the vise portion 40 The upper and lower opening grooves 42 are formed below the upper insertion groove 42, and the first and second clamp protrusion pieces P1 and P2 are formed at the free opening end of the upper insertion groove 42 at the center. ) Is formed, and the lower surface of the upper insertion groove 42, the workpiece fixing device for planar processing, characterized in that the mounting stone piece (P3) for mounting the workpiece (S) is formed. According to claim 1, wherein the cutting groove 44 is fixed to the workpiece for plane processing, characterized in that formed on one side of the lower side of the seating projection (P3) of the upper insertion groove (42). According to claim 1 or 2, the upper insertion grooves 42 are formed to be arranged in a line from side to side, the tightening bolt 32 installed in the clamping hole 30 is the upper insertion groove 42 of the vise portion (40) The workpiece fixing device, characterized in that configured to clamp pressure on the side points of the vise portion 40 is located at the height.

Images