阅读说明：本技术 一种喷丸机喷丸位置校准装置及方法 (Shot blasting position calibration device and method for shot blasting machine ) 是由 张永刚 高相毅 石红敏 杨立强 柳培发 段佩 冯咏 何亮 于 2019-11-13 设计创作，主要内容包括：本发明公开了一种喷丸机喷丸位置校准装置及方法,装置包括校准块和用于模拟喷丸路径的校准模拟枪；校准块和校准模拟枪上均设置连接端和校准端；校准块连接端与机床的中心定位孔连接,校准模拟枪的连接端与喷丸机喷嘴连接；当进行喷丸机喷丸位置校准时,校准块的校准端和校准模拟枪的校准端对正。本发明改变了常规的喷枪校准方式,喷丸前采用喷枪位置校准装置对喷嘴位置进行校验,这样就避免了喷丸时由于喷嘴位置不精确导致的喷丸覆盖率不够的质量缺陷,精确校准了喷丸过程中喷嘴的运动轨迹,提高了喷丸覆盖率的一次合格率。同时,本发明装置结构简单,便与生产加工且成本低,适合推广使用。(The invention discloses a shot blasting position calibration device and method for a shot blasting machine, wherein the device comprises a calibration block and a calibration simulation gun for simulating a shot blasting path; the calibration block and the calibration simulation gun are both provided with a connecting end and a calibration end; the connecting end of the calibration block is connected with a central positioning hole of the machine tool, and the connecting end of the calibration simulation gun is connected with a shot blasting machine nozzle; when shot blasting position calibration of the shot blasting machine is carried out, the calibration end of the calibration block is aligned with the calibration end of the calibration simulation gun. The invention changes the conventional spray gun calibration mode, and adopts the spray gun position calibration device to verify the position of the spray nozzle before shot blasting, thereby avoiding the quality defect of insufficient shot blasting coverage rate caused by inaccurate position of the spray nozzle during shot blasting, accurately calibrating the motion track of the spray nozzle in the shot blasting process, and improving the primary qualification rate of the shot blasting coverage rate. Meanwhile, the device has simple structure, convenient production and processing and low cost, and is suitable for popularization and use.)

1. A shot blasting position calibration device of a shot blasting machine is characterized by comprising a calibration block and a calibration simulation gun for simulating a shot blasting path;

the calibration block and the calibration simulation gun are both provided with a connecting end and a calibration end; the connecting end of the calibration block is connected with a central positioning hole (11) of the machine tool, and the connecting end of the calibration simulation gun is connected with a shot blasting machine nozzle (10);

when shot blasting position calibration of the shot blasting machine is carried out, the calibration end of the calibration block is aligned with the calibration end of the calibration simulation gun.

2. A shot-peening position calibration apparatus according to claim 1, wherein said calibration block includes a mounting pin (3), a horizontal table (4), and a calibration post (5);

one end of the mounting pin (3) is a connecting end of the calibration block and is connected with a central positioning hole (11) of the machine tool, the other end of the mounting pin is connected with the lower surface of the horizontal table (4), one end of the calibration column (5) is connected with the upper surface of the horizontal table (4), and the other end of the calibration column is a calibration end of the calibration block.

3. A shot-peening position calibration apparatus according to claim 2, wherein said mounting pin (3), calibration post (5) and a centrally located hole (11) of the machine tool are coaxially mounted.

4. The apparatus for aligning the shot-peening position of a shot-peening machine according to claim 1, wherein the alignment end of the alignment block is provided as a tip.

5. A shot-peening position calibration apparatus according to claim 1, wherein said calibration simulation gun includes a shot-flow simulation rod (6) and a mounting sleeve (7);

one end of the shot flow simulation rod (6) is a calibration end of a calibration simulation gun, the other end of the shot flow simulation rod is connected with one end of the installation sleeve (7), and the other end of the installation sleeve (7) is a connection end of the calibration simulation gun and is connected with the shot blasting machine nozzle (10).

6. The shot-peening position calibration apparatus for shot-peening machine according to claim 5, further comprising a first screw and a second screw;

a first screw locks one end of a pill flow simulation rod (6) in a mounting sleeve (7) through a simulation rod fixing hole (8) formed in the mounting sleeve (7), and the pill flow simulation rod (6) can slide in the mounting sleeve (7) before being locked; the second screw locks one end of a shot blasting machine nozzle 10 positioned in the mounting sleeve (7) through a nozzle fixing hole (9) formed in the mounting sleeve (7).

7. A shot-peening position calibration apparatus according to claim 5, wherein the length of said shot-flow simulating rod (6) is the same as the effective shot-peening distance of the shot-peening nozzle 10.

8. A shot-peening position calibration apparatus according to claim 1, wherein said calibration end of said calibration analog gun is provided as a tip.

9. A shot position calibration method for a shot-blasting machine based on the apparatus of claim 1, characterized by comprising the steps of:

s1: connecting the connecting end of the calibration block with a central positioning hole (11) of a machine tool, and connecting the connecting end of the calibration simulation gun with a shot blasting machine nozzle (10);

s2: rotating the spray gun by a preset angle, and then adjusting the calibration simulation gun until the calibration end of the calibration simulation gun is aligned with the calibration end of the calibration block;

s3: recording the coordinate value of the spray gun at the moment, and recording as a calibration coordinate;

s4: before each shot blasting, repeating S1-S2, and when the current spray gun coordinate value is different from the calibration coordinate, adjusting the installation position of the nozzle 10 of the shot blasting machine until the spray gun coordinate value is the same as the calibration coordinate, and finishing the calibration.

10. The method for calibrating shot blasting position of a shot blasting machine according to claim 9, wherein said preset angle in S2 is 45 °.

Technical Field

The invention belongs to the field of shot blasting, and relates to a shot blasting position calibration device and method for a shot blasting machine.

Background

In the existing shot blasting process, when special conditions such as gun collision and the like occur during equipment maintenance, replacement of a spray gun and a bracket system or shot blasting experiments, the spray gun needs to be adjusted and reset again, and each adjustment and reset is realized by mechanical zero return of the equipment, and the influence of assembly gaps such as a nozzle bracket and the like is not considered. This results in a change in the nozzle position and the initial programmed position. The change of the shot blasting position has great influence on the coverage rate of the part, and particularly, the position accuracy is very important when the shot blasting is carried out on special positions such as small annular grooves, assembly holes and the like.

If the shot position is not calibrated during the shot blasting, as shown in fig. 1, the shot position of the shot trajectory ejected by the lance may have a slight variation from the initial programmed position, in particular an angular variation that has a very high effect on the coverage of the groove bottom of the annular groove to be blasted.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a shot blasting position calibration device and method for a shot blasting machine.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

a shot blasting position calibration device of a shot blasting machine comprises a calibration block and a calibration simulation gun for simulating a shot blasting path;

the calibration block and the calibration simulation gun are both provided with a connecting end and a calibration end; the connecting end of the calibration block is connected with a central positioning hole of the machine tool, and the connecting end of the calibration simulation gun is connected with a shot blasting machine nozzle;

when shot blasting position calibration of the shot blasting machine is carried out, the calibration end of the calibration block is aligned with the calibration end of the calibration simulation gun.

The shot blasting position calibration device of the shot blasting machine is further improved as follows:

the calibration block comprises a mounting pin, a horizontal table and a calibration column;

one end of the mounting pin is a connecting end of the calibration block and is connected with a central positioning hole of the machine tool, the other end of the mounting pin is connected with the lower surface of the horizontal table, one end of the calibration column is connected with the upper surface of the horizontal table, and the other end of the calibration column is a calibration end of the calibration block.

The mounting pin, the calibration column and the central positioning hole of the machine tool are coaxially mounted.

The alignment end of the alignment block is configured as a tip.

The calibration simulation gun comprises a pill flow simulation rod and a mounting sleeve;

the shot flow simulation rod is connected with the shot blasting machine nozzle and comprises a shot flow simulation rod, a calibration end, a mounting sleeve and a mounting sleeve.

The screw driver also comprises a first screw and a second screw;

the first screw locks one end of the pill flow simulation rod in the mounting sleeve through a simulation rod fixing hole formed in the mounting sleeve, and the pill flow simulation rod can slide in the mounting sleeve before locking; the second screw locks one end of the shot blasting machine nozzle 10 in the mounting sleeve through a nozzle fixing hole formed in the mounting sleeve.

The length of the shot-flow simulation rod is the same as the effective shot-blasting distance of the shot-blasting machine nozzle 10.

The calibration end of the calibration simulation gun is arranged to be a tip.

In another aspect of the present invention, a shot-blasting position calibration method for a shot-blasting machine comprises the following steps:

s1: connecting the connecting end of the calibration block with a central positioning hole of a machine tool, and connecting the connecting end of the calibration simulation gun with a shot blasting machine nozzle;

s2: rotating the spray gun by a preset angle, and then adjusting the calibration simulation gun until the calibration end of the calibration simulation gun is aligned with the calibration end of the calibration block;

s3: recording the coordinate value of the spray gun at the moment, and recording as a calibration coordinate;

s4: before each shot blasting, repeating S1-S2, and when the current spray gun coordinate value is different from the calibration coordinate, adjusting the installation position of the nozzle 10 of the shot blasting machine until the spray gun coordinate value is the same as the calibration coordinate, and finishing the calibration.

The shot blasting position calibration method of the shot blasting machine is further improved as follows:

the preset angle in S2 is 45 °.

Compared with the prior art, the invention has the following beneficial effects:

the shot blasting position calibration device of the shot blasting machine comprises a calibration block, a calibration simulation gun, a shot blasting position calibration block and a shot blasting position calibration simulation gun, wherein the calibration simulation gun is used for simulating a shot blasting path, the connection end of the calibration simulation gun is connected with a center positioning hole of a machine tool, the connection end of the calibration simulation gun is connected with a shot blasting machine nozzle, the shot blasting position of the shot blasting machine is calibrated by aligning the calibration end of the calibration block with the calibration end of the calibration simulation gun, when the shot blasting machine nozzle is changed, the calibration of the shot blasting machine nozzle position is carried out under the condition that the two calibration ends are aligned, the accuracy of the nozzle position during shot blasting and the qualification rate of the coverage rate after shot blasting are ensured, the quality defect that the shot blasting coverage rate is not enough due to the inaccuracy of the nozzle position during shot blasting is.

Furthermore, the mounting pin, the calibration column and the center positioning hole of the machine tool are coaxially mounted, so that the calibration precision of the shot blasting position of the shot blasting machine is improved.

Furthermore, the calibration end of the calibration block is set to be a tip, so that the calibration precision is improved.

Furthermore, the calibration simulation gun comprises a shot flow simulation rod and an installation sleeve, a first screw penetrates through a simulation rod fixing hole lock arranged on the installation sleeve and is positioned at one end of the shot flow simulation rod in the installation sleeve, the end of the shot flow simulation rod can slide in the installation sleeve before being locked, the shot flow simulation rod extends out of the installation sleeve to be adjusted in length, and therefore the calibration simulation gun is adjusted in length and is used for being matched with shot blasting machine nozzles of different specifications.

Furthermore, the calibration end of the calibration simulation gun is set to be a tip, so that the calibration precision is improved.

According to the shot blasting position calibration method of the shot blasting machine, calibration coordinates are set, after the calibration simulation gun is adjusted to align the calibration end of the calibration simulation gun with the calibration end of the calibration block during shot blasting each time, the installation position of the nozzle of the shot blasting machine is adjusted to enable the coordinate value of the spray gun to be the same as the calibration coordinates, and calibration is completed. By checking the position of the nozzle of the shot blasting machine, the quality defect of insufficient shot blasting coverage rate caused by inaccurate position of the nozzle during shot blasting is avoided, the motion track of the nozzle in the shot blasting process is accurately calibrated, and the primary qualified rate of the shot blasting coverage rate is improved.

Furthermore, the rotating angle of the spray gun is 45 degrees, the spray gun generally keeps the angle of 45 degrees during shot blasting for shot blasting, the same spray gun angle as that during actual shot blasting is selected during calibration, and the accuracy of the calibration result is further ensured.

Drawings

FIG. 1 is a schematic view of the annular tongue and groove shot peening of the present invention;

FIG. 2 is a schematic diagram of a calibration block of the present invention;

FIG. 3 is a schematic view of a calibration simulation gun of the present invention;

FIG. 4 is a view of the internal structure of the calibration simulation gun of the present invention;

FIG. 5 is a schematic diagram of the calibration device of the present invention during use.

Wherein: 1-shot blasting pellet trajectory; 2-annular tongue-and-groove bottom to be shot blasted; 3-mounting a pin; 4-a horizontal table; 5-a calibration column; 6-pellet flow analog rod; 7-mounting the sleeve; 8-simulation rod fixing holes; 9-nozzle fixing holes; 10-a nozzle; 11-a central locating hole; 12-horizontal table surface.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The invention is described in further detail below with reference to the accompanying drawings:

referring to fig. 1 to 5, the apparatus for calibrating the position of a nozzle 10 of a shot-blasting machine according to the present invention comprises a calibration block and a calibration simulation gun.

The calibration block comprises a mounting pin 3, a horizontal table 4 and a calibration column 5; the mounting pin 3 is connected with the lower surface of the horizontal table 4, the calibration column 5 is connected with the upper surface of the horizontal table 4, and the mounting pin 3 is parallel to the axis of the calibration column 5. The mounting pin 3 is mounted in a matching way with a central positioning hole 11 of a machine tool, the surface of the planar horizontal table 4 enables the calibration block to be horizontally mounted, the mounting accuracy of the calibration block is guaranteed, and the surface of the horizontal table 4, namely the surface 12 of the horizontal table, is a horizontal plane.

The calibration simulator gun comprises a bolus simulation rod 6 and a mounting sleeve 7. The bolus simulation rod 6 is used to simulate the position of the ejection of a bolus stream, simulate the pellets of fluid in solid form to simulate the position of the ejection of a bolus stream, and perform precise positioning. The length of the hanging-out of the shot flow simulation rod 6 is obtained through shot blasting distance experimental measurement, one end of the shot flow simulation rod 6 is set to be a tip end, and the other end of the shot flow simulation rod is fixedly connected with the sleeve. The mounting sleeve 7 and the pellet flow simulating rod 6 may be glued or welded, or may be connected as follows.

The mounting sleeve 7 is provided with a simulation rod fixing hole 8 and a nozzle fixing hole 9, the simulation rod fixing hole 8 is used for fixedly connecting one end of the pill flow simulation rod 6, and one end of the pill flow simulation rod 6 is locked in the sleeve through a first screw; the nozzle fixing hole 9 is used for fixedly connecting a nozzle 10, and one end of the nozzle 10 is locked inside the sleeve through a second screw. Because the shot blasting distances of the shot blasting machines with different specifications are different during shot blasting, the extension length of the shot flow simulation rod 6 can be changed through the extension and contraction of the shot flow simulation rod 6 in the sleeve and the locking of the first screw, so that the shot blasting machines with different specifications are adapted to the shot blasting machine nozzles 10 with different specifications.

In another aspect of the present invention, a method for calibrating the position of a shot-blasting machine nozzle 10 comprises the steps of:

the first step is as follows: the mounting pin 3 of the calibration block is matched with the central positioning hole 11 of the machine tool for mounting, the calibration block is horizontally mounted through the surface of the horizontal table 4, and the mounting accuracy of the calibration block is guaranteed.

The second step is that: the calibration simulation gun is assembled on the nozzle 10 of the spray gun, the spray gun is rotated by a preset angle and is verified by an angle measuring instrument, the correctness of the angle is ensured, the angle can be selected to be 45 degrees, when the spray nozzle 10 is used for shot blasting, the 45-degree spray gun angle can ensure that shot blasting can be still well carried out when the spraying surface is subjected to large-angle transformation, the spray gun angle in the actual shot blasting process is selected for calibration, the actual shot blasting condition is better met, and the calibration result is more accurate. Then, manually operating the calibration simulation gun, aligning the tip position of a pill flow simulation rod 6 of the calibration simulation gun with the tip position of a calibration column 5 of the calibration block, recording the calibration coordinate value at the moment, and defining the coordinate value as a calibration coordinate;

the third step: during the subsequent shot blasting process, the coordinate value is verified in front of the nozzle 10 according to the above method, if the coordinate has deviation, which indicates that the position of the nozzle 10 has changed, the installation position of the nozzle 10 needs to be adjusted to the calibration coordinate, so that the accuracy of the position of the nozzle 10 during shot blasting operation is ensured, and the coverage requirement after shot blasting of parts is ensured.

The invention changes the conventional spray gun calibration mode, and adopts the spray gun position calibration device to verify the position of the nozzle 10 before shot blasting, thereby avoiding the quality defect of insufficient shot blasting coverage rate caused by inaccurate position of the nozzle 10 during shot blasting, accurately calibrating the motion track of the nozzle 10 in the shot blasting process, and improving the primary qualification rate of the shot blasting coverage rate. Meanwhile, the device has simple structure, convenient production and processing and low cost, and is suitable for popularization and use.

The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.