阅读说明：本技术 一种测量焊缝夹板尺寸的卡具及其方法 (Fixture and method for measuring size of welding seam clamping plate ) 是由 潘南玲 于 2020-06-12 设计创作，主要内容包括：本发明公开了一种测量焊缝夹板尺寸的卡具及其方法,卡具具有卡板主体,卡板主体挖设有开槽,开槽的轮廓边形状构造成恰好能够卡扣到待测焊缝夹板的钢轨接触面外,开槽的轮廓边包括斜线边和第一弧形边,两条斜线边分别临近卡板主体的两端设置,每一条斜线边具有第一端点和第二端点,每一条斜线边的第一端点位于卡板主体的第一侧边上,相比于第一端点,第二端点更靠近轴,第一弧形边临近卡板主体的第二侧边设置,两端分别连接两斜线边的第二端点,测量状态下,一斜线边与焊缝夹板的上斜面的间隙小于预设值,另一斜线边与焊缝夹板的下斜面的间隙小于预设值,第一弧形边与焊缝夹板的配合弧面的间隙小于预设值。本发明测量程序易于标准化,测量效率高,有利于保障精度。(The invention discloses a clamp for measuring the size of a welding seam clamp plate and a method thereof, the clamp is provided with a clamp plate main body, a slot is dug in the clamp plate main body, the shape of the outline edge of the slot is just designed to be clamped outside the steel rail contact surface of the welding seam clamp plate to be measured, the outline edge of the slot comprises a diagonal edge and a first arc-shaped edge, the two diagonal edges are respectively arranged near the two ends of the clamp plate main body, each diagonal edge is provided with a first end point and a second end point, the first end point of each diagonal edge is positioned on the first side edge of the clamp plate main body, the second end point is closer to a shaft than the first end point, the first arc-shaped edge is arranged near the second side edge of the clamp plate main body, the two ends are respectively connected with the second end points of the two diagonal edges, the gap between one diagonal edge and the upper inclined plane of the welding seam clamp, the clearance between the first arc-shaped edge and the matched arc surface of the welding seam clamping plate is smaller than a preset value. The invention has the advantages of easy standardization of the measuring procedure, high measuring efficiency and contribution to ensuring the precision.)

1. A clamp for measuring the size of a weld seam clamp plate is characterized by comprising a clamp plate main body (4), wherein a slot (41) is dug in the clamp plate main body (4), the slot (41) extends from a first side to a second side of the clamp plate main body (4), an axis (O) is arranged in the length direction perpendicular to the clamp plate main body (4), the direction extending from the first side to the second side is called the positive direction of the axis (O), and the shape of the outline edge of the slot (41) is just buckled outside the steel rail contact surface of the weld seam clamp plate (1) to be measured; wherein the contour edge of the slot (41) comprises two oblique line edges (411) and a first arc-shaped edge (412), the two oblique line edges (411) are respectively arranged close to two ends of the clamping plate main body (4) and are symmetrically arranged relative to the axis (O), each oblique line edge (411) is provided with a first end point and a second end point, the first end point of each oblique line edge (411) is positioned on the first side edge of the clamping plate main body (4), the second end point is closer to the axis (O) than the first end point, in a measuring state, a gap between one oblique line edge (411) and the upper inclined plane (A) of the welding seam clamping plate (1) is smaller than the preset value, a gap between the other oblique line edge (411) and the lower inclined plane (C) of the welding seam clamping plate (1) is smaller than the preset value, and the first arc-shaped edge (412) is arranged close to the second side edge of the clamping plate main body (4), two ends of the first arc-shaped edge (412) are respectively connected with second end points of the two oblique line edges (411), and in a measuring state, a gap between the first arc-shaped edge (412) and a matched arc surface (B) of the welding seam clamping plate (1) is smaller than the preset value.

2. The clamp for measuring the size of the weld seam clamping plate as claimed in claim 1, wherein the contour edge of the slot (41) further comprises a second arc-shaped edge (413) and a third arc-shaped edge (414), the second arc-shaped edge (413) is connected between one of the oblique line edges (411) and one end point of the first arc-shaped edge (412), the third arc-shaped edge (414) is connected between the other oblique line edge (411) and the other end point of the first arc-shaped edge (412), and in a measuring state, a gap between the second arc-shaped edge (413) and the upper transition arc surface (M) of the weld seam clamping plate (1) is smaller than the preset value, and a gap between the third arc-shaped edge (414) and the lower transition arc surface (N) of the weld seam clamping plate (1) is smaller than the preset value.

3. The clamp for measuring the size of the weld seam clamping plate as claimed in claim 2, wherein the profile edge of the slot (41) further comprises a plurality of arc-shaped edges (415), the plurality of arc-shaped edges (415) are connected in series at two ends and are connected between the oblique line edge (411) and the first arc-shaped edge (412), and in the measuring state, the gap between each arc-shaped edge (415) and the transition arc surface of the weld seam clamping plate (1) is smaller than the preset value.

4. The jig for measuring the size of a weld seam clamp plate according to any one of claims 1 to 3, wherein a portion between the first arc-shaped side (412) and the second side of the clamp plate main body (4), which is a hand-held or hand-held portion, has a predetermined length in the positive direction of the axis (O).

5. The jig for measuring the dimensions of a weld seam clamp plate according to claim 4, characterized in that the beveled edge (411), the first curved edge (412), the second curved edge (413), the third curved edge (414) and the curved edge (415) are each coated with a distinctive color.

6. The jig for measuring the dimensions of a weld sandwich plate according to claim 4, wherein the preset value is set in the range of 0.01mm to 0.05 mm.

7. The clamp for measuring the dimensions of a weld seam clamp plate according to claim 4, characterized in that the slope of the oblique line edge (411) is 1: 3, the curvature of the first arc-shaped side (412) is 400mm, the curvature of the second arc-shaped side (413) is 20.95mm, the curvature of the third arc-shaped side (414) is 25mm, the curvature of the arc-shaped sides is 40mm or 10.5, and the portion between the first arc-shaped side (412) and the second side of the card main body (4) has a preset length of 25.2mm to 25.4mm in the positive direction of the axis (O).

8. A method for measuring the dimensions of a weld seam clamp plate using a clamp according to any of claims 1 to 7, comprising:

s1, buckling a clamp outside a steel rail contact surface of the welding seam clamp plate (1), aligning two oblique line edges (411) of the clamp with an upper oblique plane (A) and a lower oblique plane (C) of the welding seam clamp plate (1) respectively, and attaching the two oblique line edges to the upper oblique plane (A) and the lower oblique plane (C);

s2, keeping the shaft (O) of the clamp parallel to the thickness direction of the welding seam clamp plate 1;

s3, measuring the size of a gap between the outline of the slot (41) of the fixture and the steel rail contact surface of the welding seam clamping plate (1), wherein if the size of the gap is smaller than a preset value, the steel rail contact surface of the welding seam clamping plate (1) is judged to be qualified, otherwise, the steel rail contact surface is not qualified.

9. The method for measuring the dimensions of the weld seam clamp plate according to claim 8, wherein a feeler gauge having a thickness ranging from 0.01 to 0.05mm is inserted between each position on the contour of the slot (41) and the rail contact surface of the weld seam clamp plate (1) in step S3, and if the feeler gauge is not inserted, the rail contact surface of the weld seam clamp plate 1 is judged to be qualified, otherwise, the rail contact surface is not qualified.

Technical Field

The invention relates to a measuring tool, in particular to a clamp and a method for measuring the size of a welding seam clamping plate.

Background

For the weld seam or the heavy damaged part of the railway steel rail, the weld seam clamping plates are usually adopted to carry out reinforcement treatment on two sides of the steel rail at present so as to prevent the weld seam damage from expanding. During reinforcement, the steel rail contact surface of the welding seam clamping plate needs to be adhered to the side surface of the rail cavity of the steel rail to be reinforced through an adhesive, is completely attached to the concave cambered surface of the side surface of the rail cavity of the steel rail, and effectively supports the concave cambered surface of the side surface of the rail cavity of the steel rail. Therefore, the dimensions of the convex cambered surface of the steel rail contact surface of the welding seam clamping plate need to meet specific requirements. Then, when the weld seam clamp plate is machined, the size of the curved arc surface of the rail contact surface of the weld seam clamp plate needs to be strictly detected.

Traditional detection mode is mainly used through the cooperation of range estimation and multiple general measuring tool, to the assurance of curve cambered surface size, and the measuring means is difficult for standardizing, and measurement of efficiency is low, and the welding seam splint size precision after the measurement can not ensure, and then can influence follow-up installation and the life of welding seam splint.

Disclosure of Invention

It is an object of the present invention to provide a jig and method for measuring the dimensions of a weld clamp plate that overcomes or at least alleviates at least one of the above-mentioned disadvantages of the prior art.

In order to achieve the above object, the present invention provides a jig for measuring a size of a weld clamp, the jig having a main body, the main body having a groove dug therein, the groove extending from a first side toward a second side of the main body, the main body having an axis in a direction perpendicular to a length direction of the main body, the direction extending from the first side to the second side being a positive direction of the axis O, a contour edge of the groove being shaped to be just able to be snapped out of a rail contact surface of a weld clamp to be measured, and a gap between a contour of the groove snapped out of the rail contact surface of the weld clamp to be measured and the rail contact surface of the weld clamp being smaller than a predetermined value, the contour edge of the groove including a diagonal edge and a first arc-shaped edge, two diagonal edges being respectively disposed adjacent to both ends of the main body and symmetrically disposed with respect to the axis, each diagonal edge having a first end point and a second end point, the first end point of each slash limit is located the first side edge of cardboard main part, compares in first end point, and the second end point is more close to the axle, and under the measurement state, one of them slash limit with the gap between the last inclined plane of welding seam splint is less than the default, another slash limit with the gap between the lower inclined plane of welding seam splint is less than the default, first arc limit is close to the second side edge setting of cardboard main part, and the second extreme point on two slash limits is connected respectively at both ends, under the measurement state, first arc limit with the gap between the cooperation cambered surface of welding seam splint is less than the default.

Further, the grooved contour edge further comprises a second arc-shaped edge and a third arc-shaped edge, the second arc-shaped edge is connected between one oblique line edge and one end point of the first arc-shaped edge, the third arc-shaped edge is connected between the other oblique line edge and the other end point of the first arc-shaped edge, in a measuring state, a gap between the second arc-shaped edge and the upper transition arc surface of the welding seam clamping plate is smaller than the preset value, and a gap between the third arc-shaped edge and the lower transition arc surface of the welding seam clamping plate is smaller than the preset value.

Furthermore, the grooved outline edge further comprises a plurality of arc-shaped edges, two ends of the plurality of arc-shaped edges are connected in series and are connected between the oblique line edge and the first arc-shaped edge, and a gap between each arc-shaped edge and the transition arc surface of the welding seam clamping plate is smaller than the preset value in the measuring state.

Further, a portion between the first arc-shaped side and the second side of the clamping plate main body has a preset length in the positive direction of the axis, and the portion is a hand-held or hand-held portion.

Further, the beveled edge, the first curved edge, the second curved edge, the third curved edge, and the curved edge are each coated with a distinct color.

Further, the preset value is set in the range of 0.01mm to 0.05 mm.

Further, the slope of the sloped line edge is 1: 3, the camber on first arc limit is 400mm, the camber on second arc limit is 20.95mm, the camber on third arc limit is 25mm, the camber on arc limit is 40mm or 10.5, the part between first arc limit and the second side of cardboard main part has in the positive direction of axle to predetermine length and is 25.2mm to 25.4 mm.

The invention also provides a method for measuring the size of the welding seam clamping plate by using the fixture, which comprises the following steps:

s1, buckling a clamp outside the steel rail contact surface of the welding seam clamp plate, aligning two oblique line edges of the clamp with the upper oblique plane and the lower oblique plane of the welding seam clamp plate respectively, and attaching the two oblique line edges to the upper oblique plane and the lower oblique plane;

s2, keeping the axis of the fixture parallel to the thickness direction of the welding seam clamp plate 1;

s3, measuring the size of a gap between the outline of the groove of the fixture and the steel rail contact surface of the welding seam clamping plate, wherein if the size of the gap is smaller than a preset value, the steel rail contact surface of the welding seam clamping plate is judged to be qualified, otherwise, the steel rail contact surface of the welding seam clamping plate is not qualified.

Further, in step S3, a feeler gauge with a thickness range of 0.01-0.05mm is inserted between each position on the grooved profile and the rail contact surface of the weld clamp plate, if the feeler gauge cannot be inserted into the groove, the rail contact surface of the weld clamp plate 1 is judged to be qualified in size, otherwise, the rail contact surface is not qualified.

The measuring clamp provided by the invention is simple to manufacture, the measuring program is easy to standardize, the measuring efficiency is high, and the precision is favorably ensured.

Drawings

Fig. 1 is a schematic view of the structure of a weld clamping plate to be measured.

Fig. 2 is a schematic view showing a state in which the weld clamp of fig. 1 is mounted to a rail.

Fig. 3 is a schematic structural view of a jig for measuring the size of a weld clamping plate according to an embodiment of the present invention.

Detailed Description

In the drawings, the same or similar reference numerals are used to denote the same or similar elements or elements having the same or similar functions. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.

As shown in fig. 1, the rail contact surface of the weld clamp 1 includes an upper inclined surface a, a fitting arc surface B and a lower inclined surface C, and the fitting arc surface B connects the upper inclined surface a and the lower inclined surface C. The cooperation cambered surface B of rail contact surface is outside protrusion for install in the rail chamber side of 2 both sides of rail that are the interior concave cambered surface form, consequently, the radius of cooperation cambered surface B and the rail chamber side looks adaptation of rail 2, and slightly less than the rail chamber side cambered surface of rail 2. For example, the cambered surface radius of the cavity side of the steel rail is 400 mm. The radius of the fit cambered surface B is 398mm, 398.5mm or a value between 398.5mm and 398 mm. The upper inclined plane A and the lower inclined plane C protrude 0.5mm-1.5mm or move forward 0.5mm-1.5mm relative to the matching cambered surface B. "front" herein may be understood as referring to the direction to the left in the drawing plane of fig. 1.

The invention aims to measure the dimension of the steel rail contact surface of the weld seam clamp plate 1, namely the curvature of each point of the steel rail contact surface consisting of an upper inclined surface A, a lower inclined surface C and a matching cambered surface B on the contour line of the section (the plane of the paper surface shown in figure 1) along the width and thickness directions of the weld seam clamp plate 1, wherein the point E1, the point E2, the point E3 and the point E4 which are shown in figure 1 are all on the contour line to be measured. Of course, this is only an exemplary illustration, and in essence, the curvature of each point on the contour line to be measured needs to meet specific requirements, which will be described below.

As shown in fig. 2, the weld joint clamping plate 1 and the steel rail 2 are locked and fixed through the bolt 3, and the steel rail contact surface of the weld joint clamping plate 1 is matched with the side surface of the rail cavity of the steel rail 2, so that two sides of the steel rail 2 are reinforced, and the weld joint damage of the steel rail 2 is prevented from further expanding. During the reinforcement, the rail contact surface of welding seam splint 1 need through the adhesive adhere to treat in the rail chamber side of reinforced rail 2 to laminate completely with the indent cambered surface of rail chamber side of rail 2, and form effective support to the rail chamber side of rail, consequently, need satisfy two requirements: 1. the upper inclined plane A and the lower inclined plane C are slightly higher than the theoretical positions, so that the upper inclined plane A and the lower inclined plane C can be ensured to be completely contacted with the side surface of a rail cavity of the steel rail; 2. and the fit cambered surface B is smaller than a theoretical position (namely, is thinner in the thickness direction), so that the side surface of the rail cavity of the steel rail can be completely contacted.

Fig. 3 shows a schematic view of a jig for measuring the dimensions of a weld clamping plate. As shown in fig. 3, the jig for measuring the size of the weld seam clamp plate has a clamp plate main body 4, the clamp plate main body 4 is sheet-shaped, and the thickness direction is the direction perpendicular to the paper surface of fig. 3. In this embodiment, the thickness setting of cardboard main part 4 is in 15mm to 20 mm's within range, and big then weight of thickness is big, and thickness undersize then cardboard main part 4 is too thin, and the skew takes place easily in the measurement process, leads to the measuring result inaccurate. Cardboard main part 4's material is metal, and the processing mode can adopt the metal processing mode, for example: wire cutting or other metal working of sheet metal. When the clamping plate main body 4 is made of other materials, a processing mode suitable for the materials can be adopted.

The side of the card main body 4 in the longitudinal direction X is referred to as "side", and the side in the width direction is referred to as "end".

The card body 4 is hollowed with a slot 41, the slot 41 extending from a first side towards a second side of the card body 4. Perpendicular to the longitudinal direction X of the card main body 4, there is an axis O. The direction extending from the first side to the second side is referred to as the positive direction of the axis O, whereas the negative direction of the axis O. The contour edge of the slot 41 is shaped to be able to just snap out of the rail contact surface of the weld seam clamp 1, and the gap between the contour of the slot 41 snapped out of the rail contact surface of the weld seam clamp 1 and the rail contact surface of the weld seam clamp 1 is smaller than a preset value, which is set in the range of 0.01mm to 0.05 mm.

As a preferred embodiment of the contour of the slot 41, the contour sides of the slot 41 include two diagonal sides 411 and a first arc-shaped side 412.

Two oblique line sides 411 are respectively arranged near two ends of the card board main body 4 and symmetrically arranged relative to the axis O. Each slash side 411 has a first end point and a second end point, and the first end point of each slash side 411 is located on the first side edge of the card main body 4, and the second end point is closer to the axis O than the first end point. One oblique line side 411 has the same slope as the upper oblique plane a, and during measurement, the oblique line side 411 is required to be attached to the upper oblique plane a of the welding seam clamp plate 1, and a gap between the oblique line side 411 and the upper oblique plane a of the welding seam clamp plate 1 is smaller than the preset value. The slope of the other oblique line side 411 is the same as that of the lower oblique plane C, the other oblique line side 411 is required to be attached to the lower oblique plane C of the welding seam clamp plate 1 during measurement, and the gap between the other oblique line side 411 and the lower oblique plane C of the welding seam clamp plate 1 is smaller than the preset value. That is, the slope of the sloped side 411 is the same as the slope of the weld holder 1 to which it is to be attached during measurement.

The first arc-shaped edge 412 is disposed adjacent to the second side edge of the card main body 4, and two ends of the first arc-shaped edge are respectively connected to the second end points of the two oblique line edges 411. The slope of the first arc-shaped edge 412 is the same as that of the fit arc B of the welding seam clamping plate 1, the first arc-shaped edge 412 is required to be attached to the fit arc B of the welding seam clamping plate 1 during measurement, and a gap between the first arc-shaped edge 412 and the fit arc B of the welding seam clamping plate 1 is smaller than the preset value, so that the curvature of the first arc-shaped edge 412 is the same as that of the fit arc B of the welding seam clamping plate 1 to be attached during measurement, and is close to a straight-line arc-shaped edge.

For another weld seam clamping plate, for example, between the matching arc surface B and the upper inclined surface C, and between the matching arc surface B and the lower inclined surface C, a transition arc surface is respectively provided, for example: an upper transition cambered surface M and a lower transition cambered surface N. The profile of the slot 41 of the jig to be used has another form of construction, such as: the contour of the slot 41 further includes a second curved edge 413 and a third curved edge 414, the second curved edge 413 being connected between one of the slanted edges 411 and one end of the first curved edge 412, and the third curved edge 414 being connected between the other of the slanted edges 411 and the other end of the first curved edge 412.

That is, both ends of the second arc-shaped side 413 are connected to the second end point of the slant line side 411 and one end point of the first arc-shaped side 412, respectively. The second arc-shaped edge 413 needs to be attached to the upper transition arc surface M during measurement, and a gap between the second arc-shaped edge 413 and the upper transition arc surface M of the welding seam clamping plate 1 is smaller than a preset value, so that the curvature of the second arc-shaped edge 413 is the same as the curvature of the upper transition arc surface M of the welding seam clamping plate 1 which needs to be attached during measurement.

The third arc-shaped side 414 is connected to the second end point of the other oblique side 411 and the other end point of the first arc-shaped side 412. The third arc-shaped edge 414 needs to be attached to the lower transition arc surface N during measurement, and a gap between the third arc-shaped edge 414 and the lower transition arc surface N of the weld seam clamp plate 1 is smaller than the preset value, so that the curvature of the third arc-shaped edge 414 is the same as the curvature of the lower transition arc surface N of the weld seam clamp plate 1 that needs to be attached during measurement.

For another weld seam clamping plate, for example, between the matching arc surface B and the upper inclined surface C, and between the matching arc surface B and the lower inclined surface C, a plurality of transition arc surfaces (not shown in the figure) are respectively arranged. The profile of the slot 41 of the jig to be used has yet another form of construction, such as: the contour edge of the slot 41 further includes a plurality of curved edges 415, and the curved edges 415 are connected in series at two ends and are connected between the oblique line edge 411 and the first curved edge 412. Each arc edge 415 is required to be attached to the multi-section transition arc surface of the welding seam clamping plate during measurement, and a gap between the arc surface and the transition arc surface of the welding seam clamping plate 1 is smaller than the preset value, so that the curvature of each arc edge is the same as the curvature of the transition arc surface of the welding seam clamping plate 1 during measurement.

In one embodiment, the portion of the card body 4 between the first arc-shaped edge 412 and the second side edge has a predetermined length in the positive direction of the axis O, which portion may be used as a hand-held or hand-held portion. Of course, a through hole (not shown) may be formed in the portion to facilitate measurement by the hand-held jig. The shape of the through holes can be different, so that the portable hand-held electric tool is convenient to hold. Of course, a hand-held handle or the like may be additionally disposed at a portion between the first arc-shaped edge 412 and the second side edge of the card board main body 4, so as to facilitate hand-holding.

In one embodiment, beveled edge 411, first curved edge 412, second curved edge 413, third curved edge 414, and curved edge 415 may each be coated with a distinct color to facilitate alignment with the surface of slit splint 1 to be attached during subsequent measurement procedures.

In one embodiment, slope of slash edge 411 is 1: 3, the curvature of the first arc-shaped side 412 is 400mm, the curvature of the second arc-shaped side 413 is 20.95mm, the curvature of the third arc-shaped side 414 is 25mm, the curvature of the arc-shaped sides is 40mm or 10.5, and the portion between the first arc-shaped side 412 and the second side of the card main body 4 has a predetermined length of 25.2mm to 25.4mm in the positive direction of the axis O.

The method for measuring the dimension of the rail contact surface of the weld plate 1 by using the fixture in the above embodiment comprises the following steps:

and S1, buckling the clamp outside the steel rail contact surface of the welding seam clamp plate 1, aligning the two oblique line edges 411 with the upper oblique plane A and the lower oblique plane C respectively, and attaching the two oblique line edges to the upper oblique plane A and the lower oblique plane C.

S2, the O-axis of the jig is kept parallel to the thickness direction of the weld sandwich panel 1.

S3, measuring the size of the gap between the outline of the slot 41 and the steel rail contact surface of the weld seam clamp plate 1, wherein if the size of the gap is smaller than a preset value, the steel rail contact surface of the weld seam clamp plate 1 is judged to be qualified, otherwise, the steel rail contact surface is not qualified. In the step, a feeler gauge with the thickness range of 0.01-0.05mm can be adopted and inserted between each position on the outline of the slot 41 and the steel rail contact surface of the welding seam clamp plate 1, if the feeler gauge cannot be inserted into the slot, the steel rail contact surface of the welding seam clamp plate 1 is judged to be qualified in size, otherwise, the feeler gauge is not qualified.

Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Those of ordinary skill in the art will understand that: modifications can be made to the technical solutions described in the foregoing embodiments, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.