CN202053245U - V-shaped marking fixture - Google Patents

Abstract

The V-shaped marking fixture includes a V-shaped block and an L-shaped bracket, and the L-shaped bracket is vertical to the bottom surface of the V-shaped block and is connected to the V-shaped block with adjustable height. The V-shaped block includes a horizontally arranged upper end surface, On the bottom surface, a right angle is provided on the upper end surface, and the angle bisector of the right angle is perpendicular to the upper end surface and the bottom surface and coincides with the center plane of the V-shaped block in the length direction. A vertical surface, a first slope, and a second slope, the vertical surface is vertically connected to the upper end surface, the first slope is connected to the vertical surface and forms 120° with the bottom surface, and the second slope is connected to the first slope and the bottom surface. 135° to the bottom surface. The utility model has the beneficial effects of simple structure, low cost, high scribing precision, and convenient production and use.

Description

V-shaped scribe fixture

technical field

The utility model relates to a special clamping tool for scribing lines during pliers processing, in particular to a V-shaped scribing fixture. the

Background technique

In the process of vise processing, it is often encountered that the marking of disc parts is usually done on the dividing head or with tools such as planning and marking needles on the end face of the part or marking at a certain angle. There are defects such as cost in scribing, and the accuracy of geometric scribing is difficult to guarantee. For example, the dividing head scribing, the dividing head itself is large and heavy, and it is inconvenient to carry during clamp processing. It also needs a scribing plate of appropriate size, which greatly increases the cost of scribing; the method of geometric scribing is low in efficiency and accuracy. Difficult to guarantee. the

Contents of the invention

The utility model aims to solve the problems of high cost, low precision and low efficiency in the scribing method of the existing disc parts, and provides a V-shaped scribing line with simple structure, low cost, high scribing precision, and convenient production and use. fixture. the

The technical scheme adopted in the utility model is:

The V-shaped scribing fixture is characterized in that it includes a V-shaped block and an L-shaped bracket. The L-shaped bracket is vertical to the bottom surface of the V-shaped block and connected to the V-shaped block with adjustable height. The V-shaped block includes a horizontally arranged The upper end surface and the bottom surface of the upper end surface are provided with a right angle, and the angle bisector of the right angle is perpendicular to the upper end surface and the bottom surface and coincides with the center plane in the length direction of the V-shaped block. The left and right end surfaces of the V-shaped block A vertical surface, a first slope, and a second slope are all provided on the upper surface. The vertical surface is vertically connected to the upper end surface. The first slope is connected to the vertical surface and forms an angle of 120° with the bottom surface. The surface and the bottom surface are connected and form 135° with the bottom surface. the

Further, the top end of the L-shaped bracket is equipped with set screws for fine adjustment. the

Further, the connecting end of the L-shaped bracket and the V-shaped block is provided with a slotted hole, and the V-shaped block is provided with a screw hole, and the slotted hole and the screwed hole are connected by a double-ended stud, a tail nut, and a gasket. the

Further, a process hole is opened at the corner end of the right angle. the

When scribing, place the disc workpiece on the right angle of the V-shaped block, adjust the height of the L-shaped bracket, tighten the tail nut and fine-tune the set screw to fix the disc workpiece; then place it on the scribing plate, pass The height marking ruler is used for line processing, the processing of horizontal lines can be based on the bottom surface, the processing of 45° oblique lines can be processed based on the second oblique plane, and the processing of 60° oblique lines can be processed based on the first oblique plane. The processing of vertical lines can take the vertical plane as the reference plane. the

The slope angle of the V-shaped block can be customized according to the angle of the line to be processed. The flatness of each surface of the V-shaped block is ≤0.03mm; the relative angle error of each surface is ≤±2′; the roughness of each surface is ≤3.2um. the

The intended effect of the utility model is that the structure is simple, the cost is low, the marking precision is high, and the production and use are convenient. the

Description of drawings

Fig. 1 is a front view of the utility model. the

Fig. 2 is a left view of the utility model. the

Fig. 3 is a structural schematic diagram of an application example of the present utility model. the

Fig. 4 is a structural schematic diagram II of an application example of the present utility model. the

Detailed ways

Referring to Fig. 1 and Fig. 2, the V-shaped marking fixture includes a V-shaped block 1 and an L-shaped bracket 2, and the L-shaped bracket 2 is vertical to the bottom surface of the V-shaped block 1 and is connected to the V-shaped block 1 with an adjustable height. Described V-shaped block 1 comprises upper end surface 11, bottom surface 12 that are arranged horizontally, is provided with right angle 13 on described upper end surface 11, and the angle bisector of described right angle 13 is perpendicular to upper end surface 11 and bottom surface 12 and with V-shaped block 1 The central planes in the lengthwise direction coincide, and a vertical surface 14, a first inclined surface 15, and a second inclined surface 16 are all provided on the left and right end surfaces of the V-shaped block 1, and the vertical surface 14 is vertically connected to the upper end surface 11. The first slope 15 is connected to the vertical surface 14 and forms an angle of 120° with the bottom surface 12 , and the second slope 16 is connected with the first slope 15 and the bottom surface 12 and forms an angle of 135° with the bottom surface 12 . the

The top end of the L-shaped support 2 is equipped with a set screw 3 for fine adjustment. the

The connecting end of the L-shaped bracket 2 and the V-shaped block 1 is provided with a slotted hole 21, and the V-shaped block 1 is provided with a screw hole 17, and the slotted hole 21 and the screwed hole 17 pass through the double-ended stud 4, the belt tail The nut 5 and the washer 6 are connected. the

A process hole 18 is opened at the corner end of the right angle 13 . the

When scribing, place the disc workpiece on the right angle 13 of the V-shaped block 1, adjust the height of the L-shaped bracket 2, tighten the tail nut 5 and fine-tune the set screw 3 to fix the disc workpiece; On the line plate, the line processing is carried out through the height marking ruler. The processing of the horizontal line can be based on the bottom surface 12, the processing of the 45° oblique line can be based on the second inclined plane 16, and the processing of the 60° oblique line can be based on The first slope 15 is a reference plane, and the vertical plane 15 can be used as a reference plane for processing the vertical line. the

The slope angle of the V-shaped block 1 can be customized according to the line angle to be processed. The flatness of each surface of the V-shaped block 1 is ≤0.03mm; the relative angle error of each surface is ≤±2′; the roughness of each surface is ≤3.2um. the

Application example one

A2＝A1+A3，B2＝B+R， 

并且A、B、A3、R、L、α＝45°是已知尺寸，所以通过划线尺控制相应尺寸即可简便划出所需加工尺寸线条。  As shown in Figure 3, on the disk workpiece, in order to draw the processing lines a, b, c, d, the disk workpiece only needs to be placed on the inner right angle 13 of the special V-shaped block 1, and the height of the L-shaped support 2 is adjusted. Tighten the end nut 5 and fine-tune the set screw 3 to fix it. Then place it on the scribing plate, and control the processing lines of dimensions A1, A2, B1, and L1 through the height scribing ruler, that is, draw a and b lines respectively based on the bottom surface 12; Line c is drawn; line d is drawn on the basis of the second slope 16 . because

A2=A1+A3, B2=B+R,

And A, B, A3, R, L, α=45° are known dimensions, so the required processing size lines can be easily drawn by controlling the corresponding dimensions with a marking ruler.

Application example two

A2＝A1+A3， 

并且A、A3、C、R、L1、α＝60°是已知尺寸，所以通过划线尺控制相应尺寸即可简便划出所需加工尺寸线条。  As shown in Figure 4, on the disk workpiece, in order to draw the processing lines a, b, c, d, the disk workpiece only needs to be placed on the inner right angle 13 of the special V-shaped block 1, and the height of the L-shaped support 2 is adjusted. Tighten the end nut 5 and fine-tune the set screw 3 to fix it. Then place it on the scribing plate, and control the processing lines of dimensions A1, A2, D1, and D2 through the height scribing ruler, that is, draw a and b lines respectively based on the bottom surface 12; use the first slope on the left end surface and the right end surface Draw d and c lines respectively as the benchmark on the first inclined plane. because

A2=A1+A3,

And A, A3, C, R, L1, α=60° are known dimensions, so the required processing size lines can be easily drawn by controlling the corresponding dimensions with a marking ruler.

The content described in the embodiments of this specification is only an enumeration of the realization forms of the utility model concept, and the protection scope of the utility model should not be regarded as being limited to the specific forms stated in the embodiments, and the protection scope of the utility model also includes Equivalent technical means that those skilled in the art can think of according to the concept of the utility model. the

Claims (4)

1. V-shaped marking fixture, it is characterized in that: comprise V-shaped block, L-shaped support, described L-shaped support is perpendicular to the V-shaped block bottom surface and is connected on the V-shaped block with adjustable height, and described V-shaped block comprises The upper end surface and the bottom surface arranged horizontally, the upper end surface is provided with a right angle, and the angle bisector of the right angle is perpendicular to the upper end surface and the bottom surface and coincides with the central plane of the V-shaped block length direction. The left and right sides of the V-shaped block A vertical surface, a first slope, and a second slope are all provided on the right end surface, the vertical surface is vertically connected to the upper end surface, the first slope is connected to the vertical surface and forms 120° with the bottom surface, and the second slope is connected to the second slope. A slope is connected to the bottom surface and forms an angle of 135° with the bottom surface. 2. The V-shaped scribing fixture according to claim 1, characterized in that: the top end of the L-shaped bracket is equipped with a set screw for fine adjustment. 3. The V-shaped marking fixture according to claim 1 or 2, characterized in that: the connecting end of the L-shaped bracket and the V-shaped block is provided with a slotted hole, and the V-shaped block is provided with a screw hole, and the said V-shaped block is provided with a screw hole. The slotted hole and the screw hole are connected by a double-ended stud, a tail nut and a gasket. 4. The V-shaped scribing fixture according to claim 3, wherein a process hole is opened at the corner end of the right angle.

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