阅读说明：本技术 一种焊缝测量工具 (Welding seam measuring tool ) 是由 喻信红 冯斌 于 2020-05-11 设计创作，主要内容包括：一种焊缝测量工具,属变压器生产技术领域,包括定位器、测量部和标定器,定位器有一对,测量部安装在一对定位器之间。定位器成对安装,定位器包括底板、耳片,底板上偏中心的位置具有耳片,一对定位器交错安装。测量部包括中心筒、限位凸台、转轴、调零筒、零点凸台、顶针,中心筒两侧具有限位凸台,限位凸台上具有转轴,转轴安装在耳片上。中心筒内安装调零筒,调零筒与中心筒采用螺纹配合,调零筒顶部具有零点凸台,调零筒内安装顶针,顶针上具有长度刻线。标定器包括第一卡片、圆滑轨、紧定螺钉、标定点、第二卡片和圆导杆,第一卡片的底部具有圆滑轨,圆滑轨内套合安装圆导杆,圆导杆安装在第二卡片上,第一卡片上通过弧形连杆连接标定点。(A welding seam measuring tool belongs to the technical field of transformer production and comprises a pair of positioners, a measuring part and a calibrator, wherein the measuring part is arranged between the pair of positioners. The locators are installed in pairs and comprise a bottom plate and lug plates, the lug plates are arranged on the positions, deviated from the center, on the bottom plate, and the locators are installed in a staggered mode. The measuring part comprises a center cylinder, a limiting boss, a rotating shaft, a zero adjusting cylinder, a zero boss and a thimble, wherein the limiting boss is arranged on two sides of the center cylinder, the rotating shaft is arranged on the limiting boss, and the rotating shaft is arranged on the lugs. A zero setting cylinder is installed in the central cylinder, the zero setting cylinder is in threaded fit with the central cylinder, a zero boss is arranged at the top of the zero setting cylinder, an ejector pin is installed in the zero setting cylinder, and a length scale line is arranged on the ejector pin. The calibrator comprises a first clamping piece, a circular sliding rail, a set screw, a calibration point, a second clamping piece and a circular guide rod, wherein the bottom of the first clamping piece is provided with the circular sliding rail, the circular guide rod is sleeved in the circular sliding rail, the circular guide rod is arranged on the second clamping piece, and the first clamping piece is connected with the calibration point through an arc-shaped connecting rod.)

1. A welding seam measuring tool comprises a pair of positioners (10), a measuring part (20) and a calibrator (30), and is characterized in that the positioners (10) are in a pair, the measuring part (20) is installed between the pair of positioners (10), the calibrator (30) calibrates the position relation of the positioners (10) and the measuring part (20), the positioners (10) are installed in pair, each positioner (10) comprises a bottom plate (11) and an ear piece (12), the ear pieces (12) are arranged at positions on the bottom plate (11) which are eccentric, the pair of positioners (10) are installed in a staggered mode, a gap is formed between the ear pieces (12) which are eccentric respectively, the measuring part (20) is installed between the two ear pieces (12), the measuring part (20) comprises a central cylinder (21), a limiting boss (22), a rotating shaft (23), a zero adjusting cylinder (24), a zero boss (25) and an ejector pin (26), the limiting bosses (22) are arranged on two sides of the central, the limiting bosses (22) are provided with rotating shafts (23), the rotating shafts (23) are installed on the lugs (12), the distance between the end faces of the limiting bosses (22) on the two sides of the central cylinder (21) is equal to the distance between the inner side faces of the two lugs (12), a zero adjusting cylinder (24) is installed in the central cylinder (21), the zero adjusting cylinder (24) is in threaded fit with the central cylinder (21), the top of the zero adjusting cylinder (24) is provided with a zero boss (25), the zero boss (25) is used for indicating a zero point on the thimble (26), the thimble (26) is installed in the zero adjusting cylinder (24), the thimble (26) can slide in the zero adjusting cylinder (24), the thimble (26) is provided with a length scale line, the calibrator (30) comprises a first clamping plate (31), a circular sliding rail (32), a set screw (33), a calibration point (34), a second clamping plate (35) and a circular clamping guide rod (36), the bottom of the first clamping plate (31) is provided with a circular, the round guide rod (36) is installed in the round slide rail (32) in a sleeved mode, the round slide rail (32) and the round guide rod (36) are concentric, the round guide rod (36) is installed on the second clamping piece (35), the round slide rail (32) and the round guide rod (36) are matched with each other to achieve angle adjustment within 180 degrees, the circle centers of the round slide rail (32) and the round guide rod (36) are always located on the intersection point of extension lines of the first clamping piece (31) and the second clamping piece (35), the first clamping piece (31) is connected with the calibration point (34) through the arc-shaped connecting rod, the center of the upper end face of the calibration point (34) is located at the circle center of the round slide rail (32), and when the conical head (27) of the ejector pin (26) abuts against the calibration point (34), the ejector pin (26) is located at.

2. Weld measuring tool according to claim 1, characterized in that one wing nut (13) is mounted at each end of the spindle (23).

3. The weld measurement tool of claim 1, wherein the zero position of the length score line on the thimble (26) is located in the middle of the thimble (26) and extends towards both ends.

4. The weld seam measuring tool according to claim 1, characterized in that the front end of the thimble (26) is provided with a conical head (27), and the sharp part of the front end of the conical head (27) can measure the height of the weld seam more accurately.

5. Weld seam measuring tool according to claim 1, characterized in that the end of the circular sliding rail (32) is provided with a set screw (33).

Technical Field

The invention belongs to the technical field of transformer production, and particularly relates to a welding seam measuring tool.

Background

The welding process is often used in the transformer box manufacturing process, generally, the welding seam needs to be detected after welding operation is finished, including airtight test or nondestructive test, in addition, appearance detection of the welding seam is also one of important links, the height of the welding seam is measured by means of a standard template and a gauge in a current common mode, however, angles of a welding face in actual production are various, the standard template is difficult to be suitable for measuring the welding seam at various angles, or a large number of templates at different angles need to be prepared, the mode has difficulty for field management, and along with abrasion of the templates, the measurement precision is difficult to guarantee.

Disclosure of Invention

The present invention provides a weld measuring tool to solve the above problems in the background art.

The technical problem solved by the invention is realized by adopting the following technical scheme:

a welding seam measuring tool comprises a pair of positioners, a measuring part and a calibrator, wherein the measuring part is arranged between the pair of positioners, and the calibrator calibrates the position relation between the positioners and the measuring part to ensure the measuring accuracy.

The positioners are installed in pairs and comprise bottom plates and lugs, the lugs are arranged on the positions, which are eccentric, of the bottom plates, the pair of positioners are installed in a staggered mode, and gaps are reserved among the lugs, which are eccentric, of each pair of positioners. The measuring part comprises a center cylinder, a limiting boss, a rotating shaft, a zero adjusting cylinder, a zero boss, a thimble and a conical head, the two sides of the center cylinder are provided with the limiting boss, the rotating shaft is arranged on the lugs, the distance between the end surfaces of the limiting bosses on the two sides of the center cylinder is equal to the distance between the inner side surfaces of the two lugs, and the limiting boss also plays a limiting role on the lugs. A zero setting cylinder is installed in the center cylinder, the zero setting cylinder and the center cylinder are in threaded fit, the zero setting cylinder is rotated to adjust the relative position of the zero setting cylinder in the center cylinder, a zero boss is arranged at the top of the zero setting cylinder and used for indicating a zero point on an ejector pin, an ejector pin is installed in the zero setting cylinder, a length scale line is arranged on the ejector pin, and the ejector pin can slide in the zero setting cylinder. The calibrator comprises a first clamping plate, a circular sliding rail, a set screw, a calibration point, a second clamping plate and a circular guide rod, the first clamping plate is tightly attached to the bottom surface of a bottom plate during calibration, the bottom of the first clamping plate is provided with the circular sliding rail, the circular guide rod is sleeved in the circular sliding rail and concentric with the circular guide rod, the circular guide rod is installed on the second clamping plate, the circular sliding rail and the circular guide rod are mutually matched to realize angle adjustment within 180 degrees, the circle centers of the circular sliding rail and the circular guide rod are always located on the intersection point of the extension lines of the first clamping plate and the second clamping plate, the first clamping plate is connected with the calibration point through an arc-shaped connecting rod, the center of the upper end surface of the calibration point is located at the circle center of the circular sliding rail, the calibration point is used for calibrating the zero point of the thimble, and.

Furthermore, two ends of the rotating shaft are respectively provided with a butterfly nut.

Furthermore, the zero position of the length scale line on the thimble is positioned in the middle of the thimble and extends towards the two ends, the length scale line can accurately measure the height of the welding line and can measure convex and concave welding lines, and the appearance quality of the welding line can be accurately judged.

Furthermore, the front end of the ejector pin is provided with a conical head, the sharp part of the front end of the conical head can measure the height of a welding seam more accurately, and the phenomenon that a large measuring error is introduced due to interference of the ejector pin and a welded plate is avoided.

Furthermore, the end of the circular slide rail is provided with a set screw, and after the relative position of the circular slide rail and the circular guide rod is adjusted in place, the circular guide rod is locked by the set screw.

The invention has the beneficial effects that:

the invention is used for measuring the welding seam of the transformer box body, can accurately measure the height of the welding seam, is suitable for measuring the convex welding seam and the concave welding seam, has good matching capability for the welding seam of the welding parts with different angles, and has good measuring accuracy through a calibrated measuring tool.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an exploded view of the present invention;

in the figure: 10. the measuring device comprises a positioner, 11 parts of a bottom plate, 12 parts of a lug, 13 parts of a butterfly nut, 20 parts of a measuring part, 21 parts of a central cylinder, 22 parts of a limiting boss, 23 parts of a rotating shaft, 24 parts of a zero adjusting cylinder, 25 parts of a zero boss, 26 parts of an ejector pin, 27 parts of a conical head, 30 parts of a calibrator, 31 parts of a first clamping plate, 32 parts of a circular sliding rail, 33 parts of a set screw, 34 parts of a calibration point, 35 parts of a second clamping plate and 36 parts of a circular guide rod.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1-3, the weld measuring tool includes a pair of locators 10, a measuring portion 20 and a calibrator 30, wherein the measuring portion 20 is installed between the pair of locators 10, and the calibrator 30 calibrates the position relationship between the locators 10 and the measuring portion 20 to ensure the accuracy of measurement.

The locators 10 are installed in pairs, each locator 10 comprises a base plate 11, tabs 12 and butterfly nuts 13, the tabs 12 are arranged on the base plate 11 in an off-center position, the locators 10 are installed in a staggered mode, gaps are reserved between the off-center tabs 12, a measuring portion 20 is installed between the two tabs 12, and the butterfly nuts 13 are further arranged on the outer sides of the tabs 12.

The measuring part 20 comprises a central cylinder 21, two limiting bosses 22, a rotating shaft 23, a zero adjusting cylinder 24, a zero boss 25, a thimble 26 and a conical head 27, the two sides of the central cylinder 21 are provided with the limiting bosses 22, the rotating shaft 23 is arranged on the lug plates 12, the distance between the end surfaces of the limiting bosses 22 on the two sides of the central cylinder 21 is equal to the distance between the inner side surfaces of the two lug plates 12, the limiting bosses 22 also play a limiting role on the lug plates 12, the two butterfly nuts 13 are provided, one is respectively arranged at each of the two ends of the rotating shaft 23, after the angle adjustment of the positioner 10 is finished, the butterfly nuts 13 are screwed down to lock the positioner 10, and after the locking, the positioner 10 and the measuring part 20 cannot rotate mutually. A zero setting cylinder 24 is installed in the central cylinder 21, the zero setting cylinder 24 is in threaded fit with the central cylinder 21, the zero setting cylinder 24 is rotated to adjust the relative position of the zero setting cylinder 24 in the central cylinder 21, a zero boss 25 is arranged at the top of the zero setting cylinder 24, the zero boss 25 is used for indicating a zero point on an ejector pin 26, the ejector pin 26 is installed in the zero setting cylinder 24, the ejector pin 26 can slide in the zero setting cylinder 24, a length groove is arranged on the ejector pin 26, the zero point of the length groove is located in the middle of the ejector pin 26 and extends towards two ends, the length groove can accurately measure the height of a welding line, can measure convex and concave welding lines, and can accurately judge the appearance quality of the welding line. The front end of the thimble 26 is provided with a conical head 27, and the sharp part at the front end of the conical head 27 can measure the height of a welding seam more accurately, so that a larger measurement error caused by interference of the thimble and a welded plate is avoided.

The calibrator 30 includes a first clamping plate 31, a smooth rail 32, a set screw 33, a calibration point 34, a second clamping plate 35 and a circular guide rod 36, the first clamping plate 31 is tightly attached to a bottom surface of the bottom plate 11 during calibration, the bottom of the first clamping plate 31 has the circular guide rail 32, the circular guide rod 36 is installed in the circular guide rail 32 in a sleeved manner, the smooth rail 32 and the circular guide rod 36 are concentric, the circular guide rod 36 is installed on the second clamping plate 35, the smooth rail 32 and the circular guide rod 36 are mutually matched to realize angle adjustment within 180 degrees, the centers of the smooth rail 32 and the circular guide rod 36 are always located at an intersection point of extension lines of the first clamping plate 31 and the second clamping plate 35, and a person skilled in the art can easily understand the geometric relationship based on the above description and with reference to fig. 2, the end of the smooth rail 32, after the relative positions of the smooth rail 32 and the round guide rod 36 are adjusted to the right, the round guide rod 36 is locked by the set screw 33. The first card 31 is connected to a calibration point 34 through an arc-shaped link, the calibration point 34 plays an important role in the present invention, the center of the upper end surface of the calibration point 34 is located at the center of the circular slide rail 32, the calibration point 34 is used for calibrating the zero point position of the thimble 26, and when the conical head 27 of the thimble 26 abuts against the calibration point 34, the position of the thimble 26 is at the zero point. The calibration point 34 is always at the center of the circle no matter how the circular slide rail 32 and the circular guide rod 36 rotate.

The working principle of the invention is as follows: firstly, the angles of the first clamping piece 31 and the second clamping piece 35 are adjusted according to the angle relation of the welding pieces, the common angles are 90 degrees and 180 degrees, and other angles are also provided sometimes, the adjustment mode is that the relative positions of the round guide rod 36 and the smooth rail 32 are dragged, and the round guide rod and the smooth rail are locked through the set screw 33 after the adjustment is finished. Then two butterfly nuts 13 are loosened, so that the positioner 10 and the measuring part 20 are in a free rotation state, the bottom plates 11 of the two positioners 10 are tightly attached to the first clamping plate 31 and the second clamping plate 35, and the conical head 27 of the thimble 26 is adjusted to abut against the calibration point 34, as can be seen from a simple geometric relationship, the thimble 26 is located on an angular bisector of the two bottom plates 11 at this time, the butterfly nut 13 is locked, the positioner 10 and the measuring part 20 cannot rotate relatively any more, at this time, the zero cylinder 24 is adjusted, so that the zero boss 25 indicates a zero position of a length scale line of the thimble 26, at this time, calibration is performed, the butterfly nut 13 is kept in a locking state, the zero cylinder 24 is kept to be fixed, the positioner 10 and the measuring part 20 are integrally moved to a welding part to be measured, the two bottom plates 11 are respectively abutted against the side walls on two sides of the welding line, the thimble 26 is pushed, the conical head 27 abuts against the welding line, and a value corresponding to the zero, the height of the welding seam can be easily obtained, whether the welding seam belongs to a convex welding seam or a concave welding seam is judged, and whether the appearance of the welding seam is qualified or not is judged according to the welding technical requirements. If necessary, the measurement can be carried out for multiple times, and then the statistical height of the welding seam is obtained by using a statistical method.

The above embodiments mainly illustrate the weld measuring tool of the present invention. While only a limited number of embodiments and features have been described, those skilled in the art will recognize that the invention can be embodied in many other forms without departing from the spirit or scope thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and various modifications and alternative arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims.