A measuring tool for forging

Abstract

The utility model relates to the technical field of forging tools, and in particular to a measuring tool for forging. It comprises a first rotating arm and a second rotating arm, and one end of the first rotating arm and the second rotating arm are hinged through a hinge shaft, and the ends of the first rotating arm and the second rotating arm away from the hinge shaft are provided with a evasion part, and the ends of the evasion part away from the hinge shaft are provided with a contact end, and the distances from the pin shaft on the first rotating arm and the guide block rotatably connected to the hinge shaft are equal, and the contact end on the first rotating arm and the axis of the pin shaft and the axis of the hinge shaft are all on the same plane, and the contact end on the second rotating arm and the axis of the rotating shaft on the guide block and the axis of the hinge shaft are all on the same plane, and one end of the ruler is connected to the pin shaft and the extension line of its zero scale line passes through the axis of the pin shaft, and the ruler is slidably connected to the guide block. The utility model is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of forging tools, in particular to a forging measuring tool. Background Art

[0002] Forging is a processing method that uses a forging machine to apply pressure to a metal blank to cause it to undergo plastic deformation in order to obtain a forging with certain mechanical properties, shape, and size. During the forging process, it is necessary to measure the diameter or width of the workpiece. Patent application number 201922253814.7 discloses a forging measuring tool, which can avoid various factors that may cause changes in the distance between the two ends of the caliper during the transfer process, saving time and omitting the transfer process of the caliper. However, in actual use, the measurement personnel generally hold the clamp close to one end of the ruler for measurement, resulting in the workpiece to be measured being located in front of the hand and the ruler being located behind the hand, resulting in the head and eyes needing to turn downward at a large angle when checking the ruler after observing the contact between the clamping end and the workpiece, which is somewhat inconvenient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a forging measuring tool in view of the above-mentioned technical deficiencies.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a measuring tool for forging, comprising a first rotating arm and a second rotating arm, and one end of the first rotating arm and the second rotating arm are hinged by a hinge shaft, the ends of the first rotating arm and the second rotating arm away from the hinge shaft are provided with an avoidance portion, the end of the avoidance portion away from the hinge shaft is provided with a contact end, the pin shaft on the first rotating arm and the guide block rotatably connected to the second rotating arm are at the same distance from the hinge shaft, the contact end on the first rotating arm and the axis of the pin shaft and the axis of the hinge shaft are all in the same plane, the contact end on the second rotating arm and the axis of the rotating shaft on the guide block and the axis of the hinge shaft are all in the same plane, one end of the ruler is connected to the pin shaft and the extension line of its zero scale line passes through the axis of the pin shaft, and the ruler is slidably connected to the guide block.

[0005] To further optimize the technical solution, the ruler is provided with guide grooves penetrating the upper and lower surfaces thereof, and the side surfaces of the guide grooves in the extending direction of the ruler are parallel to each other.

[0006] To further optimize the technical solution, the guide block includes a slider having a rectangular cross-section, the slider is located in the guide groove, the rotating shaft is located on one side of the slider, and an indicator block is provided on the other side of the slider, the width of the indicator block is greater than the width of the guide groove, and the inner side surface of the indicator block is perpendicular to the extension direction of the ruler and passes through the axis of the rotating shaft.

[0007] Compared with the prior art, the utility model has the following advantages: 1. One end of the first rotating arm and the second rotating arm are hinged by a hinge shaft, and the other end is provided with a contact end, and the distances between the two contact ends and the hinge shaft are equal. A pin shaft is provided on the first rotating arm, and a guide block is rotatably connected to the second rotating arm, and the distances between the pin shaft and the guide block and the hinge shaft are equal. The pin shaft is hinged to one end of the ruler, and the guide block is slidably connected to the ruler. Since the ruler and the contact end are both located in front of the hand and are relatively close to each other, it is convenient to observe both. 2. The inner side surface of the indicating block is perpendicular to the extension direction of the ruler and passes through the axis of the rotating shaft, so that the reading indicated by its inner side surface is a relatively accurate reading. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The figure is a schematic diagram of the structure of a measuring tool for forging.

[0009] Figure 2 for Figure 1 Magnified view of point I in the middle.

[0010] Figure 3 Schematic diagram of the structure of the guide block.

[0011] In the figure: 1, first rotating arm; 11, avoidance part; 12, contact end; 13, pin shaft; 2, second rotating arm; 21, guide block; 211, rotating shaft; 212, slider; 213, indicator block; 3, ruler; 31, guide groove. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0013] Specific implementation method: Combination Figure 1-3As shown, a forging measuring tool comprises a first rotating arm 1 and a second rotating arm 2, and one end of the first rotating arm 1 and the second rotating arm 2 are hinged via a hinge axis, and the ends of the first rotating arm 1 and the second rotating arm 2 away from the hinge axis are provided with a relief portion 11, and the inner side of the relief portion 11 protrudes outward, and the end of the relief portion 11 away from the hinge axis is provided with a contact end 12, and the contact end 12 is thinner, and its top view is preferably an acute angle, and the distances from the two contact ends 12 to the hinge axis are equal, and the distances from the pin shaft 13 on the first rotating arm 1 and the guide block 21 rotatably connected to the second rotating arm 2 to the hinge axis are equal, and the axes of the contact end 12 and the pin shaft 13 on the first rotating arm 1 and the axis of the hinge axis are all on the same plane, and the contact end 12 on the second rotating arm 2 2 and the axis of the rotating shaft 211 on the guide block 21 and the axis of the hinge axis are all on the same plane, so that the triangle with the hinge axis and the two contact ends 12 as vertices is similar to the triangle with the pin 13, the rotating shaft 211 and the hinge axis as vertices, and the ratio of the distance between the two contact ends 12 to the distance between the pin 13 and the rotating shaft 211 is a fixed value, one end of the ruler 3 is rotatably connected to the pin 13 and the extension line of its zero scale line passes through the axis of the pin 13, and the ruler 3 is slidably connected to the guide block 21. In order to facilitate reading, the length corresponding to the one-millimeter scale on the ruler 3 is proportionally reduced according to the ratio of the side lengths of the two similar triangles, and the distance between the two contact ends 12 can be roughly obtained through the ruler 3. When measuring the workpiece, the two hands hold the two rotating arms located on the side of the ruler 3 close to the hinge axis respectively. Since the ruler 3 and the contact end 12 are both located in front of the hand and the two are relatively close, it is convenient to observe the two.

[0014] Furthermore, the ruler 3 is provided with a guide groove 31 penetrating the upper and lower surfaces thereof, and the side surfaces of the guide groove 31 in the extending direction of the ruler 3 are parallel to each other, and the scale can be set on one side of the upper surface of the ruler 3 .

[0015] Furthermore, the guide block 21 includes a slider 212, the cross-section of the slider 212 is rectangular, the slider 212 is located in the guide groove 31, the rotating shaft 211 is located on one side of the slider 212, the rotating shaft 211 is rotatably connected to the second rotating arm 2, and an indicating block 213 is provided on the other side of the slider 212. The width of the indicating block 213 is greater than the width of the guide groove 31, so that the ruler 3 will not fall. The inner side surface of the indicating block 213 is perpendicular to the extension direction of the ruler 3 and passes through the axis of the rotating shaft 211. The reading indicated by the inner side surface of the indicating block 213 is a relatively accurate reading.

[0016] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A forging measuring tool, comprising a first rotating arm (1) and a second rotating arm (2), one end of the first rotating arm and the second rotating arm (2) being hingedly connected via a hinge shaft, characterized in that: The first rotating arm (1) and the second rotating arm (2) are both provided with an avoidance portion (11) at one end away from the hinge axis, and the avoidance portion (11) is provided with a contact end (12) at one end away from the hinge axis. The distances between the two contact ends (12) and the hinge axis are equal. The distances between the pin shaft (13) on the first rotating arm (1) and the guide block (21) rotatably connected to the second rotating arm (2) and the hinge axis are equal. The axes of the contact end (12) and the pin shaft (13) on the first rotating arm (1) and the axis of the hinge axis are all on the same plane. The axes of the contact end (12) on the second rotating arm (2) and the rotating shaft (211) on the guide block (21) and the axis of the hinge axis are all on the same plane. One end of the ruler (3) is rotatably connected to the pin shaft (13) and the extension line of its zero scale line passes through the axis of the pin shaft (13). The ruler (3) is slidably connected to the guide block (21).

2. A forging measuring tool according to claim 1, characterized in that: The ruler (3) is provided with a guide groove (31) penetrating the upper and lower surfaces thereof, and the side surfaces of the guide groove (31) in the extension direction of the ruler (3) are parallel to each other.

3. A forging measuring tool according to claim 2, characterized in that: The guide block (21) comprises a slider (212), the cross section of the slider (212) is rectangular, the slider (212) is located in the guide groove (31), the rotating shaft (211) is located on one side of the slider (212), and an indicating block (213) is provided on the other side of the slider (212), the width of the indicating block (213) is greater than the width of the guide groove (31), and the inner side surface of the indicating block (213) is perpendicular to the extension direction of the ruler (3) and passes through the axis of the rotating shaft (211).

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