CN204397886U - A kind of scribing tooling - Google Patents

Abstract

The utility model provides a marking tool, which is used to determine another point outside the plane based on the plane and draw a line based on the point; the marking tool includes a horizontal marking rod, and is vertically arranged on the marking line The positioning rod at the left end of the rod moves the horizontal marking needle arranged on the marking rod, and the longitudinal marking needle arranged at the right end of the marking rod; the positioning rod is parallel to the axis of the horizontal marking needle, and the lower end of the positioning rod has a side plane.

Description

a marking tool

technical field

The utility model provides a line marking tool, which is used to determine another point outside the plane based on the plane and draw a line based on this point.

Background technique

In production practice, it is often necessary to determine another point outside the plane based on the plane and draw a line based on this point. For example: in the process of machining die-forged blade root surface on a milling machine, it is necessary to draw the center line of the blade root and the end surface processing line when marking the line; the usual method is to draw the center line of the blade root with a scribing needle, and find the line and Lock the vernier caliper to the corresponding processing size at the intersection point of the transfer surface on the inner arc side, and then use the tip of the caliper to draw the end surface processing line from the intersection point. Since the blank of this type of part is a die forging, its surface has a thick oxide skin, and the tip of the caliper is easily worn, which affects the accuracy of the caliper.

Contents of the invention

The purpose of this utility model is to provide a marking tool, which is used to determine another point outside the plane based on the plane and draw a line based on this point, instead of directly marking the line with a measuring tool (such as a vernier caliper), so as to reduce the wear of the measuring tool. Maintain gage accuracy.

The purpose of this utility model is to realize through the following technical solutions:

This scribing tool includes a scribing rod arranged horizontally, a positioning rod vertically arranged at the left end of the scribing rod, a horizontal scribing needle arranged on the scribing rod for movement, and a longitudinal scribing needle arranged at the right end of the scribing rod; positioning The rod is parallel to the axis of the transverse needle, and the lower end of the positioning rod has a side plane parallel to the axis of the positioning rod.

The beneficial effects of the utility model are:

Using this marking tool, you can use the plane as a reference to determine another point outside the plane and draw a line based on this point, instead of directly marking the line with a measuring tool (such as a vernier caliper), reducing the wear of the measuring tool and maintaining the accuracy of the measuring tool.

The above-mentioned scribing tool has a flattened plane parallel to its axis on the scribing rod, and the slip ring is slidably fitted on the scribing rod; the slip ring is threaded with an end face that can be pressed against the flattened plane. set screws and crosswise scribes. When the set screw is loosened, the slip ring can move relative to the marking rod, and the locking screw can fix the slip ring on the marking rod; the slip ring is threaded to connect the horizontal marking needle, which can be adjusted vertically and horizontally. The relative position of the tip of the needle relative to the slip ring.

In the above-mentioned marking tool, the positioning rod is vertically movable and is arranged on the left end of the marking rod. In this way, the relative position of the marking rod relative to the lowest point of the side plane of the positioning rod can be adjusted vertically.

As an improvement to the utility model, the pointed ends of the horizontal marking needle and the vertical marking needle are made of wear-resistant materials.

As a further improvement to the utility model, the wear-resistant material used to make the tip of the horizontal scribing needle and the longitudinal scribing needle is hard alloy.

The above improvements improve the wear resistance of the tip of the horizontal scribing needle and the longitudinal scribing needle and prolong their service life.

Description of drawings

Figure 1 is a schematic diagram of the structure of the marking tool

Fig. 2 is A-A sectional view of Fig. 1.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

Refer to the scribing tool shown in Figure 1 and Figure 2, which includes a scribing rod 1 arranged horizontally, a positioning rod 2 arranged at the left end of the scribing rod 1 is moved vertically, and a horizontal scribing needle 7 arranged on the scribing rod 1 is moved , the vertical marking needle 5 that is arranged on the right-hand side of the marking rod 1; the axis of the positioning rod 2 is parallel to the horizontal marking needle 7, and the lower end of the positioning rod 2 has a side plane 10 parallel to the axis of the positioning rod 2, and the apex of the horizontal marking needle 7 is parallel to the axis of the positioning rod 2 The line connecting the lowest points of the side planes 10 is parallel to the axis of the marking rod 1 .

Marking bar 1 is shaft type structure, can blank with bar stock, the upper side of marking bar 1 is flattened, and the plane 11 of flattening is parallel with the axis of marking bar 1.

Offer threaded hole at the left end of marking rod 1, the axis of threaded hole is perpendicular to the plane 11 of marking rod 1. A positioning rod 2 is arranged in the threaded hole, and the lower end side of the positioning rod 2 is flattened into a side plane 10. The side plane 10 is parallel to the axis of the positioning rod 2, and its working direction is shown as perpendicular to the axis of the marking rod 1. to the right of the . In order to ensure the spatial position of the side plane 10 of the positioning rod 2 relative to the marking rod 1 , a locking nut 6 is arranged on the positioning rod 2 .

On the right-hand side of the marking rod 1, the vertical marking needle 5 is movably arranged with threads (not shown in the figure), and the axis of the vertical marking needle 5 coincides with the axis of the marking rod 1. Reliably fixed on the upper, and a locking nut 9 is set on the longitudinal marking needle 5.

The inner diameter of the slip ring 4 is equal to the nominal size of the diameter of the marking rod 1, and is fitted with a small clearance to be moved on the marking rod 1. The radially split threaded hole of the slip ring 4 is perpendicular to the axis of the slip ring 4, the set screw 3 is set in the threaded hole above the slip ring 4, and the horizontal needle 7 is set in the threaded hole below the slip ring; the set screw 3 The end surface pressing plane 11 is used for axial positioning and circumferential positioning of the horizontal marking needle 7 on the marking rod 1; the distance between the tip of the horizontal marking needle 7 and the axis of the slip ring 4 (marking rod) can be adjusted to the The connecting line level of the lower end of 2, locking lock nut 8 fixes the height of horizontal marking needle 7 points.

When using it, take the process of processing the end face of the die-forged blade root on a milling machine, and use this marking tool to mark the center line and end face processing line of the blade root as an example to illustrate its use:

Loosen the lock nut, move the slip ring to adjust the distance from the tip of the scribing needle to the side plane to make it consistent with the processing size of the drawing, and lock the set screw; use the scribing needle to mark the center line of the blade root of the blade, and find the line and the inner arc At the intersection point of the side transfer surface, clamp the positioning screw at this point, and use a scribe to draw the blade root end surface line.

The beneficial effects of the utility model are: using this marking tool, another point outside the plane can be determined based on the plane and the line can be drawn based on this point, instead of directly marking the line with a measuring tool (such as a vernier caliper), reducing the wear of the measuring tool, Maintain the accuracy of measuring tools; simple structure, easy to use.

Claims (5)

1. a scribing tooling, is characterized in that, comprises horizontally disposed scribing rod, is vertically arranged on the backstay of scribing rod left end, and the mobile horizontal scriber be arranged on scribing rod, is arranged on longitudinal scriber of scribing rod right-hand member; The axis being parallel of backstay and horizontal scriber, there is the side plane with backstay axis being parallel the lower end of backstay.

2. scribing tooling according to claim 1, is characterized in that, scribing rod has the plane of scabbling with its axis being parallel, and what slip ring slided is sleeved on scribing rod; Slip ring is threaded connection end face can be pressed on described in holding screw in the plane of scabbling and horizontal scriber.

3. scribing tooling according to claim 2, is characterized in that, backstay is arranged on scribing rod left end vertically transportable.

4. the scribing tooling according to claim 1-3 any one, is characterized in that, the tip of horizontal scriber and longitudinal scriber is made up of high-abrasive material.

5. scribing tooling according to claim 4, is characterized in that, the high-abrasive material making horizontal scriber and longitudinal scriber tip is carbide alloy.