A measuring block for the width of the punched rim of a steel drum bottom and the depth of the drum bottom

Abstract

The present application relates to a kind of for steel drum bottom punch mattress edge width and barrel bottom depth measuring block.The present application includes block;Wherein the bottom end face of the block is close to the plane section when measuring;The thickness of the block is less than the mattress edge width;Horizontal slot is provided in the upper end face of the block along the thickness direction of the block and penetrates the front end face and rear end face of the block;Along the front end face of the block, measuring support and positioning support are respectively provided, and vertical slot is provided along the measuring support and penetrates its front end face and upper and lower end faces;Along the bottom of the positioning support, positioning column is vertically extended to be used to be in abutment with the straight wall section when measuring, so that the longitudinal section of the horizontal slot passes through the center of the barrel bottom to be measured after abutment.The present application reduces the complexity of operation, effectively improves the accuracy of measurement and work efficiency.

Description

Technical Field

[0001] This invention relates to the field of measuring tools, and in particular to a measuring block for measuring the width of the stamped edge and the depth of the bottom of a steel drum. Background Technology

[0002] Steel drums, as a type of metal container, are widely used in various fields due to their excellent strength and impact resistance. The production process of steel drums typically involves using thin steel plates, which are rolled, stamped, and welded to form the finished product. After production, the rim of the bottom of the steel drum needs to be measured, with the rim width and bottom depth being two key parameters with specific process requirements.

[0003] The edge of the mattress is half the difference between the inner and outer diameters of the bottom of the tub, while the depth is the distance from the top surface of the edge to the top surface of the bottom. Currently, vernier calipers are typically used to measure the edge, while the depth requires a depth gauge and vernier calipers working together. These measurements are not limited to a single point but are taken at multiple points along the circumference of the tub bottom at intervals of 50-100mm. For the depth, at least four points along a uniform circumference are required to ensure that the dimensions of the tub bottom stamped by the mold meet the process requirements. If any dimension is found to be out of specification, and even after mold adjustments, a qualified product cannot be produced, the mold needs to be repaired. During measurement, it is essential to ensure that the vernier calipers are parallel or perpendicular to the top plane of the tub, and that the calipers are accurately aligned with the center of the bottom when measuring the edge. The accuracy of the measurement also depends on where the vernier calipers are "clamped." Taking a flat-bottomed tub bottom as an example, its shape is as follows: Figure 4 and Figure 5 As shown.

[0004] As can be seen from the shape of the bottom of the bucket, it includes a bottom surface 100, a first arc segment 200, a straight wall segment 300, a second arc segment 400, and a flat segment 500 extending sequentially from the bottom surface 100. The second arc segment 400 and the flat segment 500 constitute the edge 600 of the mattress. (Refer to...) Figures 6 to 9 As shown, due to the stamping process, the edge of the mattress has a slope (an angle between it and the 700mm depth gauge), and the bottom surface of the tub is not a perfectly flat surface but a downward-convex spherical surface. Therefore, the depth readings at the edge of the tub and at the center of the tub will differ. In the correct method for measuring the edge of the mattress, the vernier caliper should be clamped onto the straight wall of the tub bottom and aligned with the center of the tub bottom to avoid dimensional distortion. If the caliper is clamped onto the first or second arc segment, and is not properly aligned with the center of the tub bottom, the measured dimensions will be distorted.

[0005] The correct method for measuring depth involves subtracting the height of the depth gauge from the caliper reading. Theoretically, the depth measurement point should be located at the intersection of the first arc segment 200 and the bottom surface of the barrel 100 at 90° to ensure accurate measurement. In actual measurement, the depth gauge is specified to be tangent to the inner diameter of the barrel bottom, and the measurement point is determined to be the point corresponding to a width of 15mm to improve measurement accuracy.

[0006] The accuracy of the above testing methods is closely related to the operator's and inspector's proficiency with the measurement points. Different people may have large differences in the measured values, which can easily cause large measurement errors and result in low operating efficiency. Summary of the Invention

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the problems of large errors and low operating efficiency when measuring the width of the mattress edge and the depth of the bottom of the tub in the prior art.

[0008] To solve the above-mentioned technical problems, the present invention provides a measuring block for measuring the width of the edging and the depth of the bottom of a steel drum. The bottom of the drum to be measured includes a bottom surface, a first arc segment, a straight wall segment, a second arc segment, and a planar segment extending sequentially from the bottom surface. The second arc segment and the planar segment constitute the edging. The block includes a block body. The bottom surface of the block is in close contact with the planar segment during measurement; The thickness of the block is less than the width of the mattress edge; A horizontal groove is provided on the upper end surface of the block along the thickness direction of the block, penetrating the front end surface and the rear end surface of the block; A measuring support and a positioning support are respectively protruding along the front end face of the block, and a vertical groove is provided along the measuring support, penetrating its front end face and upper and lower end faces. A positioning post extends vertically along the bottom of the positioning support to abut against the straight wall section during measurement, so that the longitudinal section of the horizontal groove passes through the center of the bottom of the barrel to be measured after abutment.

[0009] In one embodiment of the present invention, two positioning supports are provided at both ends of the front end face of the block along the length direction of the block. When the positioning column of each of the two positioning supports abuts against the straight wall of the inner diameter of the bottom of the bucket to be tested, the longitudinal section of the horizontal groove passes through the center of the bottom of the bucket to be tested.

[0010] In one embodiment of the present invention, the positioning support is provided with a positioning hole, and the positioning post is inserted into the bottom of the positioning hole.

[0011] In one embodiment of the invention, the measuring support is configured to be integrally formed with one of the positioning supports.

[0012] In one embodiment of the present invention, the positioning post is a cylindrical pin.

[0013] In one embodiment of the present invention, the vertical groove has a rectangular structure and a rounded corner is provided between it and the front end face of the measuring support.

[0014] In one embodiment of the present invention, the horizontal groove has a rectangular structure and a chamfer is provided between it and the upper plane.

[0015] In one embodiment of the invention, the depth dimension of the vertical groove is configured such that when the depth of the vernier caliper abuts against the vertical groove, its measuring point is located at the intersection boundary between the bottom surface of the barrel and the first arc segment.

[0016] The technical solution of the present invention has the following advantages compared with the prior art: The present invention discloses a measuring block for measuring the edge width and bottom depth of a steel drum. The integrated design allows the steps of measuring the edge width and bottom depth to be integrated into the same tool, reducing operational complexity and effectively improving measurement accuracy and work efficiency.

[0017] The bottom surface of the block of this invention is in close contact with the bottom plane of the bucket during measurement, ensuring that the measurement is always at an accurate starting position, which helps to improve the stability and accuracy of the measurement; the thickness of the block is less than the width of the mattress edge, which helps to reduce errors during the measurement process and ensures that the measurement result of the mattress edge width is more accurate; through the design of horizontal and vertical grooves, the tool provides stable support and positioning, making the measurement process easier to operate and more accurate.

[0018] The positioning support and positioning column of this invention help ensure that the measuring block abuts against the straight wall of the bottom of the bucket during measurement, thereby ensuring that the longitudinal section of the horizontal groove passes through the center of the bottom of the bucket to be measured, and improving the accuracy of the measurement. Attached Figure Description

[0019] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a front sectional view of the measuring block of the present invention.

[0021] Figure 2 This is a side view of the measuring block of the present invention.

[0022] Figure 3 yes Figure 2 Top view.

[0023] Figure 4 This is a schematic diagram of the main view structure of the bottom of the bucket to be tested.

[0024] Figure 5 This is a top view of the bottom structure of the bucket to be tested.

[0025] Figure 6 This is a front view diagram of measuring the width of the mattress edge using vernier calipers.

[0026] Figure 7 This is a top view diagram of measuring the width of the mattress edge using vernier calipers.

[0027] Figure 8 This is a front view diagram of measuring the depth of the bottom of a bucket using vernier calipers and a depth gauge.

[0028] Figure 9 This is a top view diagram of measuring the depth of the bottom of a bucket using vernier calipers and a depth gauge.

[0029] Figure 10 This is a front view schematic diagram of measuring the width of the mattress edge using the measuring block of this invention.

[0030] Figure 11 This is a top view schematic diagram of measuring the width of the mattress edge using the measuring block of this invention.

[0031] Figure 12 This is a front view schematic diagram of measuring the depth of the bottom of a bucket using the measuring block of this invention.

[0032] Figure 13 This is a top view schematic diagram of measuring the depth of the bottom of a bucket using the measuring block of this invention.

[0033] Explanation of reference numerals in the instruction manual: 100. Bottom of the barrel; 200. First arc segment; 300. Straight wall segment; 400. Second arc segment; 500. Planar segment; 600. Edge of the mattress; 700. Depth gauge; 800. Spherical surface; 900. Intersecting boundary; 1. Block; 11. Horizontal groove; 111. Chamfer; 2. Measuring support; 21. Vertical groove; 211. Rounded corner; 3. Positioning support; 31. Positioning column. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0035] In this invention, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this invention, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0036] In this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc., are understood to exclude the stated number; "above," "below," "within," etc., are understood to include the stated number. In the description of this invention, the terms "first" and "second" are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention based on the specific content of the technical solution.

[0038] Reference Figures 1 to 3 As shown, the present invention provides a measuring block for measuring the width of the edge of a steel drum bottom and the depth of the drum bottom. The drum bottom to be measured includes a drum bottom surface 100, a first arc segment 200, a straight wall segment 300, a second arc segment 400, and a flat segment 500 extending sequentially from the drum bottom surface 100. The second arc segment 400 and the flat segment 500 constitute the edge 600. The block includes a block body 1; wherein: The bottom surface of the block 1 is in close contact with the plane segment 500 during measurement; The thickness of the block 1 is less than the width of the mattress edge 600; A horizontal groove 11 is provided on the upper end surface of the block 1 along the thickness direction of the block 1, penetrating the front end surface and the rear end surface of the block 1; A measuring support 2 and a positioning support 3 are respectively protruding along the front end face of the block 1, and a vertical groove 21 is provided along the measuring support 2, penetrating its front end face and upper and lower end faces. A positioning post 31 extends vertically along the bottom of the positioning support 3 to abut against the straight wall section 300 during measurement, so that the longitudinal section of the horizontal groove 11 passes through the center of the bottom of the barrel to be measured after abutment.

[0039] The bottom surface of block 1 is in close contact with the bottom plane section 500 of the bucket during measurement, ensuring that the measurement is always at an accurate starting position, which helps to improve the stability and accuracy of the measurement. The thickness of block 1 is less than the width of the edge 600, which helps to reduce errors during the measurement process and ensures that the measurement result of the edge 600 width is more accurate. Through the design of the horizontal groove 11 and the vertical groove 21, the tool provides stable support and positioning, making the measurement process easier to operate and more accurate. The setting of the positioning support 3 and the positioning column 31 helps to ensure that the measuring block abuts against the straight wall of the bucket bottom during measurement, thereby ensuring that the longitudinal section of the horizontal groove 11 passes through the center of the bottom of the bucket to be measured, improving the accuracy of the measurement.

[0040] In some embodiments, two positioning supports 3 are provided at both ends of the front end face of the block 1 along the length direction of the block 1. When the positioning post 31 of each of the two positioning supports 3 abuts against the straight wall of the inner diameter of the bottom of the barrel to be tested, the longitudinal section of the horizontal groove 11 passes through the center of the bottom of the barrel to be tested.

[0041] In some embodiments, the positioning support 3 is provided with a positioning hole, and the positioning post 31 is inserted into the bottom of the positioning hole. The positioning post 31 is a cylindrical pin. The measuring support 2 is configured to be integrally formed with one of the positioning supports 3.

[0042] In some embodiments, the vertical groove 21 has a rectangular structure and a rounded corner 211 is provided between it and the front end face of the measuring support 2; the horizontal groove 11 has a rectangular structure and a chamfer 111 is provided between it and the upper plane. These features help to accommodate the vernier caliper and reduce measurement errors.

[0043] In some embodiments, the depth dimension of the vertical groove 21 is configured such that when the depth of the vernier caliper abuts against the vertical groove 21, its measuring point is located at the intersection boundary 900 of the bottom surface 100 of the barrel and the first arc segment 200.

[0044] Tooling principle: Refer to Figures 12 to 13As shown, this measuring block integrates the measurement of the mattress edge 600 width and the depth of the bottom of the tub. The measuring block is attached to the mattress edge 600 at the bottom of the tub, ensuring that the bottom surface of the block 1 is in close contact with the plane section 500. The positioning support 3 is manually adjusted to bring the two positioning posts 31 close to the inner diameter straight wall of the tub bottom. A vernier caliper is placed in the horizontal groove 11 of the block 1, ensuring that the caliper is in contact with the bottom of the groove and aligned with the center of the tub bottom, allowing the measurement of the mattress edge 600 width to be read. By placing the vernier caliper close to the bottom of the vertical groove 21, ensuring the measurement point is located at the intersection of the bottom plane and the first arc, the accuracy of the tub bottom depth measurement is ensured. The tub bottom depth is obtained by subtracting the height of the measuring surface of the block 1 (i.e., the preset height of the upper plane of the measuring support 2) from the caliper reading, which is consistent with the measurement results obtained by correctly using a vernier caliper and depth gauge. The use of the mattress edge 600 depth measuring block reduces the randomness of measurement and improves accuracy.

[0045] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A measuring block for measuring the width of the edge of a steel drum bottom and the depth of the drum bottom, wherein the bottom of the steel drum to be measured includes a drum bottom surface (100), a first arc segment (200), a straight wall segment (300), a second arc segment (400), and a flat segment (500) extending sequentially from the drum bottom surface (100), wherein the second arc segment (400) and the flat segment (500) constitute an edge (600), characterized in that, Includes block (1); where: The lower end face of the block (1) is in close contact with the plane segment (500) during measurement. The thickness of the block (1) is less than the width of the mattress edge (600); A horizontal groove (11) is provided on the upper end surface of the block (1) along the thickness direction of the block (1), penetrating the front end surface and the rear end surface of the block (1). A measuring support (2) is provided along the front end face of the block (1), and a vertical groove (21) is provided along the measuring support (2) that penetrates its front end face and upper and lower end faces. Two positioning supports (3) are provided at both ends of the front end face of the block (1) along the length direction of the block (1). A positioning column (31) extends vertically along the bottom of the positioning support (3) to abut against the straight wall section (300) during measurement. When the positioning column (31) of each of the two positioning supports (3) abuts against the straight wall section of the inner diameter of the bottom of the steel barrel to be measured, the longitudinal section of the horizontal groove (11) passes through the center of the bottom of the steel barrel to be measured. Place the vernier caliper in the horizontal groove (11) of the block (1), with the vernier caliper in contact with the bottom of the horizontal groove (11) and the vernier caliper aligned with the center of the bottom of the steel barrel to read the width value of the edge (600). The measuring support (2) is configured to be integrally formed with one of the positioning supports (3); The depth dimension of the vertical groove (21) is configured such that when the depth of the vernier caliper is against the vertical groove (21), its measuring point is located at the intersection boundary (900) of the bottom surface (100) of the bucket and the first arc segment (200); when the vernier caliper is close to the bottom of the vertical groove (21), the measuring point is located at the intersection boundary of the bottom surface of the bucket and the first arc segment, and the vernier caliper reading minus the preset height of the upper end surface of the measuring support (2) is the bottom depth of the steel bucket.

2. The measuring block for measuring the width of the stamped edge and the depth of the bottom of a steel drum according to claim 1, characterized in that, The positioning support (3) is provided with a positioning hole, and the positioning post (31) is inserted into the bottom of the positioning hole.

3. A measuring block for measuring the width of the stamped edge and the depth of the bottom of a steel drum, as described in claim 1, is characterized in that... The positioning post (31) is a cylindrical pin.

4. A measuring block for measuring the width of the stamped edge and the depth of the bottom of a steel drum, as described in claim 1, is characterized in that... The vertical groove (21) has a rectangular structure and a rounded corner (211) is provided between it and the front end face of the measuring support (2).

5. A measuring block for measuring the width of the stamped edge and the depth of the bottom of a steel drum, as described in claim 1, is characterized in that... The horizontal groove (11) has a rectangular structure and a chamfer (111) is provided between it and the upper end face.

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