Scribing tool for machining annular metal product

Abstract

The utility model discloses a scribing tool for machining an annular metal product. A lineation surface is arranged on the surface of one long side of the lineation tool base plate; the two supporting and positioning bosses are fixed to the two ends of the surface of the same side of the scribing tool base plate respectively and are symmetrical to the scribing face. The center lines of the two supporting and positioning bosses are located on the same horizontal plane, and the distance between the three-o'clock position of the circumferential surface of the first supporting and positioning boss and the nine-o'clock position of the circumferential surface of the second supporting and positioning boss is smaller than or equal to the inner diameter of the ring metal product. According to the end face quadrant line marking tool, the marking tool supporting and positioning boss is placed on the outer circle or the inner circle face of the ring product to be attached, the end face quadrant line can be directly marked, the end face quadrant line marking tool is simple in structure and easy to operate, errors easily generated in measurement and calculation process steps are avoided, the precision and reliability of the drawn end face quadrant line are guaranteed, and it is guaranteed that the precision error is within 0.2 mm.

Description

Technical Field

[0001] The present invention relates to the technical field of scribing, and specifically to a scribing tooling for ring-shaped metal products. Background Art

[0002] Currently, the existing scribing methods mainly rely on manual scribing with a compass. The single-piece scribing time is long, the scribing error is large, the number of datum replacements is many, and the product accuracy and quality are unstable.

[0003] The existing scribing of ring-shaped metal products usually adopts manual scribing with a compass. This method has the following defects:

[0004] 1) Manual scribing with a compass takes a long time and is not suitable for products in mass production.

[0005] 2) The datum error of manual scribing with a compass is large. As shown in the figure above, with the outer circle quadrant line of the compass as the center, points are taken on both sides of the end face. The intersection of the perpendicular bisectors of the two intersection points is connected to the outer circle quadrant line to form the end face quadrant line. The datum of this scribing method changes many times, resulting in a large datum error and an error in the accuracy of the end face quadrant line.

[0006] 3) Manual scribing with a compass requires frequent moving of the product. The product is heavy and not easy to move, and it is easy to collide with the scribing device, causing knock and bruise and quality accidents.

[0007] 4) The product accuracy cannot be guaranteed. During the scribing process of ring-shaped metal products, due to the product characteristics, it is easy to slide and is easily affected by external forces, resulting in the rotation of the product during the scribing process and the decrease in the accuracy of the end face quadrant line.

[0008] In the utility model patent with the publication number of "CN219902150U", a scribing tooling is disclosed for drawing the symmetric center line of a pair of bosses provided on the surface of a workpiece. When a rotational torque is applied to the rotating shaft, the sliders move away from each other along the axial direction of the rotating shaft at the same speed, and finally the pair of sliders are supported between a pair of bosses provided on the surface of the cast workpiece. At this time, the operator draws along the positioning center line provided on the surface of the support table, and the symmetric center line of the pair of bosses can be drawn. However, this scribing device has a complex structure, the operation is still relatively cumbersome, and the manufacturing cost of the device is relatively high, which limits the wide promotion and application of this scribing device in large machinery manufacturing enterprises. Summary of the Invention

[0009] To overcome the deficiencies of long time consumption, large datum error, and easy knocking and bruising in the prior art, the present invention proposes a scribing tooling for processing ring-shaped metal products.

[0010] The present invention includes a scribing tooling substrate 1 and two support positioning bosses. The two support positioning bosses are respectively the first support positioning boss and the second support positioning boss.

[0011] The scribing tooling substrate 1 is a rectangular plate, and there is a groove on the surface of one long side of the scribing tooling substrate. There is a boss on the surface of the long side of the scribing tooling substrate where the groove is located, and one side surface of the boss is coplanar with one side surface of the groove; the coplanar side surface of the boss and the side surface of the groove together form a scribing surface.

[0012] The two support positioning bosses are respectively fixed at both ends of the same side surface of the scribing tooling substrate and are symmetrical with respect to the scribing surface; the center lines of the two support positioning bosses are on the same horizontal plane, and the distance between the position at the 3 o'clock on the circumferential surface of the first support positioning boss and the position at the 9 o'clock on the circumferential surface of the second support positioning boss is ≤ the inner diameter of the ring-shaped metal product.

[0013] The scribing surface is perpendicular to the horizontal plane and is located at the 1 / 2 position in the length direction of the tooling substrate.

[0014] The center lines of the two support positioning bosses are perpendicular to the side surface of the scribing tooling substrate.

[0015] In the present invention, the support positioning boss of the scribing tooling is attached to the outer circle or inner circle surface of the ring-shaped product, and the quadrant lines on the end face of the ring-shaped product can be directly scribed.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. The structure of the present invention is simple, the design is reasonable, it is easy to implement and the cost is low.

[0018] 2. The operation of the present invention is simple, easy to master, and suitable for on-site operation.

[0019] 3. The present invention can be effectively applied to scribe the quadrant lines on the end face of the ring-shaped metal product.

[0020] When scribing, only need to determine the end face quadrant lines along the scribing surface once, effectively reducing the scribing error, especially solving the problems of unstable machining quality and low machining efficiency of the ring-shaped products. And during the scribing process, the products are not easy to rotate, improving the position accuracy of the machined end face quadrant lines.

[0021] To sum up, the present invention has a simple structure, reasonable design, is easy to implement and has a low cost. It can be effectively applied in the positioning of ring-shaped metal products, realizing rapid and accurate positioning, with simple operation and strong practicability. It effectively improves the scribing efficiency of the product clamping process, has good use effect and is convenient for popularization and application. Compared with the prior art, the present invention does not require cumbersome measurement and calculation steps, the scribing operation is convenient, and it avoids the errors easily generated by the measurement and calculation process steps, ensuring the accuracy and reliability of the drawn end face quadrant lines, and ensuring that the accuracy error is within 0.2 mm. Description of the Drawings

[0022] Figure 1 This is a schematic structural diagram of the present invention.

[0023] Figure 2 is Figure 1 the top view of

[0024] Figure 3 is Figure 1 the side view of

[0025] Figure 4 is Figure 1 the three - dimensional view of

[0026] Figure 5a This is a schematic diagram of the cooperation between the present invention and the outer circumferential surface of the ring - shaped metal product.

[0027] Figure 5b is Figure 5a the top view of

[0028] Figure 5c is Figure 5b the sectional view taken along the A - A direction in

[0029] Figure 5d This is a schematic diagram of the cooperation between the present invention and the inner circumferential surface of the ring - shaped metal product.

[0030] Figure 6 This is a schematic diagram of the cooperation between the support positioning boss and the inner circumferential surface of the ring - shaped metal product.

[0031] Figure 7 This is a schematic diagram of the cooperation between the support positioning boss and the outer circumferential surface of the ring - shaped metal product.

[0032] Figure 8 This is the scribing method in the prior art.

[0033] In the figure: 1. Scribing tooling substrate; 2. First support positioning boss; 3. Scribing surface; 4. Pin; 5. Extension line of the product outer - circle surface quadrant line on the product end face; 6. Product outer - circle surface quadrant line; 7. Product inner - circle surface quadrant line; 8. Product inner - circle surface; 9. Product outer - circle surface; 10. Second support positioning boss; 11. Avoidance surface. Specific embodiments

[0034] This embodiment is a scribing tooling for a ring - shaped metal product. The scribing tooling includes a scribing tooling substrate 1 and two support positioning bosses. The two support positioning bosses are respectively the first support positioning boss 2 and the second support positioning boss 10.

[0035] The scribing tooling substrate 1 is a rectangular plate, and there is a groove on the surface of one long side of the scribing tooling substrate; the bottom surface of the groove is used for scribing the inner circular surface or the outer circular surface of the ring-shaped metal product; the surface of one side wall of the groove is the scribing working surface 3 of the scribing tooling; the height of the scribing working surface is greater than the height of the other side wall of the groove. The scribing working surface is perpendicular to the horizontal plane and is located at the 1 / 2 position in the length direction of the tooling substrate. The scribing working surface is an inclined surface section at the end away from the support positioning boss in the thickness direction of the scribing tooling substrate; the surface of the inclined surface section is the avoidance surface 11.

[0036] The two support positioning bosses are fixed at both ends of the surface of the scribing tooling substrate on the side with the avoidance surface 11 through the pin 4 and are symmetric with respect to the scribing surface 3; the center lines of the two support positioning bosses are on the same horizontal plane, and the distance between the position at the 3 o'clock on the circumferential surface of the first support positioning boss and the position at the 9 o'clock on the circumferential surface of the second support positioning boss 10 is ≤ the inner diameter of the ring-shaped metal product.

[0037] The center lines of the two support positioning bosses are perpendicular to the side surface of the scribing tooling substrate.

[0038] In this embodiment, when scribing the inner circular surface of the ring-shaped metal product, the two support positioning bosses are embedded into the ring-shaped metal product, so that the inner circular surface of the ring-shaped metal product is in contact with the circumferential surface of the support positioning boss 2, and the scribing surface 3 of the scribing tooling corresponds to the quadrant line 7 on the inner circular surface of the ring-shaped metal product. Make the radial extension line of the quadrant line on the inner circular surface of the ring-shaped metal product, and extend the quadrant line on the inner circular surface of the ring-shaped metal product to the end face of the ring-shaped metal product. The extension of the quadrant line on the inner circular surface of the ring-shaped metal product to the end face is completed.

[0039] In this embodiment, when scribing the outer circular surface of the ring-shaped metal product, the two support positioning bosses are clamped on the outer circumferential surface of the ring-shaped metal product, so that the outer circular surface of the ring-shaped metal product is in contact with the circumferential surface of the support positioning boss 2, and the scribing surface 3 of the scribing tooling corresponds to the quadrant line 6 on the outer circular surface of the ring-shaped metal product. Make the radial extension line of the quadrant line on the outer circular surface of the ring-shaped metal product, and extend the quadrant line on the outer circular surface of the ring-shaped metal product to the end face of the ring-shaped metal product. The extension of the quadrant line on the outer circular surface of the ring-shaped metal product to the end face is completed.

Claims

1. A scribing tool for processing ring-shaped metal products, characterized in that, It includes a scribing tooling substrate and two supporting and positioning bosses; there is a groove on the surface of one long side of the scribing tooling substrate; the surface of one side wall of the groove is the scribing working surface of the scribing tool; the height of the scribing working surface is greater than the height of the other side wall of the groove, forming a boss on the surface of the long side: The two supporting and positioning bosses are respectively the first supporting and positioning boss and the second supporting and positioning boss, which are respectively fixed at both ends of the same side surface of the scribing tooling substrate, and make the center lines of the two supporting and positioning bosses perpendicular to the side surface of the scribing tooling substrate and symmetric to the scribing surface.

2. The scribing tool for processing ring-shaped metal products according to claim 1, characterized in that, The scribing surface is perpendicular to the horizontal plane and is located at the 1 / 2 of the length direction of the tooling substrate.

3. The scribing tool for processing ring-shaped metal products according to claim 1, characterized in that, The center lines of the two supporting and positioning bosses are perpendicular to the side surface of the scribing tooling substrate.

4. The scribing tool for processing ring-shaped metal products according to claim 1, wherein, The scribing working surface is a bevel section at the end away from the supporting and positioning boss in the thickness direction of the scribing tooling substrate; the surface of the bevel section is an avoidance surface.

5. The scribing tool for processing ring-shaped metal products according to claim 1, wherein, The center lines of the two supporting and positioning bosses are on the same horizontal plane, and the distance between the position at the 3 o'clock on the circumferential surface of the first supporting and positioning boss and the position at the 9 o'clock on the circumferential surface of the second supporting and positioning boss is ≤ the inner diameter of the ring-shaped metal product.

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