阅读说明：本技术 一种钢球涡流检测机 (Steel ball eddy current testing machine ) 是由 徐中山 刘卫锋 于 2020-12-10 设计创作，主要内容包括：本发明涉及一种钢球涡流检测机,包括涡流检测装置,所述涡流检测装置包括支撑轮机构、第一驱动轴装置、第二驱动轴装置和靠板架,所述第一驱动轴装置安装在靠板架的底部且斜向上设置,所述第二驱动轴装置安装在靠板架的顶部且斜向下设置,所述第一驱动轴装置的旋转轴端部和第二驱动轴装置的旋转轴端部分别设有合金轮,两个所述合金轮和所述支撑轮机构将钢球拖住,所述第一驱动轴装置的旋转轴和第二驱动轴装置的旋转轴呈直角排布,所述第一驱动轴装置的旋转轴转速和第二驱动轴装置的旋转轴转速不一致。本方案相比现有的技术在操作上更加稳定,具有提高检测精度,降低成本损耗,为精确的自动化检测做好前提条件的作用。(The invention relates to a steel ball eddy current testing machine which comprises an eddy current testing device, wherein the eddy current testing device comprises a supporting wheel mechanism, a first driving shaft device, a second driving shaft device and a backing plate frame, the first driving shaft device is installed at the bottom of the backing plate frame and is arranged obliquely upwards, the second driving shaft device is installed at the top of the backing plate frame and is arranged obliquely downwards, alloy wheels are respectively arranged at the rotating shaft end part of the first driving shaft device and the rotating shaft end part of the second driving shaft device, the two alloy wheels and the supporting wheel mechanism drag steel balls, a rotating shaft of the first driving shaft device and a rotating shaft of the second driving shaft device are arranged in a right angle mode, and the rotating shaft rotating speed of the first driving shaft device is different from the rotating shaft rotating speed of the second driving shaft device. Compared with the prior art, the scheme is more stable in operation, has the advantages of improving the detection precision, reducing the cost loss and making the precondition for accurate automatic detection.)

1. The utility model provides a steel ball eddy current testing machine, includes eddy current testing device (3), its characterized in that: vortex detection device (3) include supporting wheel mechanism (34), first drive axle device (35), second drive axle device (38) and backup plate frame (39), lean on bottom one side of backup plate frame (39) to install down probe (36), supporting wheel mechanism (34) are installed in the one side of leaning on the discharge gate of backup plate frame (39), install probe (37) on supporting wheel mechanism (34), go up probe (37) and lower probe (36) and all point to the centre of a circle of steel ball at the during operation, first drive axle device (35) are installed and are set up in the bottom and the slant that lean on backup plate frame (39), second drive axle device (38) are installed and are being leaned on the top of backup plate frame (39) and the device that descends in the slant, the rotation axis tip of first drive axle device (35) and the rotation axis tip of second drive axle device (38) are equipped with alloy wheel (351) respectively, the two alloy wheels (351) and the supporting wheel mechanism (34) drag the steel balls, the rotating shaft of the first driving shaft device (35) and the rotating shaft of the second driving shaft device (38) are arranged at a right angle, and the rotating speed of the rotating shaft of the first driving shaft device (35) is different from that of the rotating shaft of the second driving shaft device (38).

2. The steel ball eddy current testing machine according to claim 1, characterized in that: the first drive shaft device (35) and the second drive shaft device (38) are driven by stepping motors, and cooling fins (381) are arranged on the motor mounting side of the first drive shaft device (35) and the motor mounting side of the second drive shaft device (38).

3. The steel ball eddy current testing machine according to claim 1, characterized in that: the supporting wheel mechanism (34) comprises a first driving motor, a connecting plate (341) and a supporting wheel (342), the first driving motor is in transmission connection with the connecting plate (341) through a lead screw nut mechanism, the end part of the connecting plate (341) is fixedly connected with a supporting frame of the supporting wheel (342), the supporting wheel (342) is in contact with a steel ball during operation, and the upper probe (37) is installed on the connecting plate (341).

4. The steel ball eddy current testing machine according to claim 1, characterized in that: vortex detection device (3) still include ball pressing mechanism (33), ball pressing mechanism (33) include second driving motor, extension spring board (331) and pinch roller (332), second driving motor passes through lead screw nut mechanism and is connected with extension spring board (331) transmission, be equipped with the extension spring on extension spring board (331), extension spring board (331) are through extension spring and pinch roller (332) elastic connection, pinch roller (332) contact with the steel ball at the during operation.

5. The steel ball eddy current testing machine according to claim 1, characterized in that: vortex detection device (3) still include material loading cylinder (31) and material returned cylinder (32), material loading cylinder (31) are installed in the feed inlet one side that leans on grillage (39), material returned cylinder (32) are installed in discharge gate one side that leans on grillage (39).

6. A steel ball eddy current testing machine according to any one of claims 1 to 5, characterized in that: still include installing support (2) and platform support body (4), eddy current testing device (3) are fixed in installing support (2), one side at installing support (2) is installed in platform support body (4), blown down tank (5) are installed at the top of platform support body (4), blown down tank (5) are connected with the discharge gate of eddy current testing device (3), the top of platform support body (4) is fixed with feed chute (6) through the support, feed chute (6) are connected with the feed inlet of eddy current testing device (3), one side downward sloping setting that feed chute (6) are close to the feed inlet of eddy current testing device (3).

7. The steel ball eddy current testing machine according to claim 6, characterized in that: an electric box (21) is installed to one side of installing support (2), display screen (22) is installed at the top of installing support (2), control box (23) is installed to top one side of installing support (2).

8. The steel ball eddy current testing machine according to claim 6, characterized in that: the material discharging device is characterized in that a sorting groove (51) is formed in the material discharging groove (5), at least two sorting grooves (51) are formed in the material discharging groove, and a material guide plate is arranged at an inlet of each sorting groove (51).

9. The steel ball eddy current testing machine according to claim 8, characterized in that: and a sorting channel induction switch frame (52) is arranged at the tail end of the sorting groove (51).

Technical Field

The invention relates to the technical field of eddy current testing equipment, in particular to an eddy current testing machine for steel balls.

Background

Referring to fig. 1, in the prior art, a supporting wheel 13 abuts against one side of a steel ball, the steel ball is driven to rotate in the meridian direction by a single driving wheel 14, in the rotation process, a special unfolding wheel 12 above the steel ball contacts the steel ball, and the unfolding wheels 12 on the left side and the right side of a wheel carrier 11 have different contact angles with the steel ball, so that torsion is generated, the steel ball is overlapped with a rotating speed in the latitude direction, and finally, the purpose that a detection probe 15 can scan the whole spherical surface is achieved.

The single property of the unfolding wheel is that when steel balls with different diameters are detected, the corresponding unfolding wheel is used, and the processing size of the unfolding wheel is related to the diameter of the detected steel ball. After the angle of the inclined plane of the expansion wheel in contact with the steel ball is used for a certain time, the angle is worn, so that an angle error is caused, and as a result, a probe scanning blind area is generated in the south-north two-pole area when the steel ball rotates. In addition, in the rotating process of the steel ball, the weight is mainly concentrated on a single driving wheel, so that the service life of the driving wheel is short, and the economic cost is increased.

Disclosure of Invention

The invention aims to provide a steel ball eddy current inspection machine to solve the problems in the background technology.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a steel ball eddy current testing machine, includes eddy current testing device, eddy current testing device includes supporting wheel mechanism, first drive axle device, second drive axle device and backup plate frame, lean on bottom one side of grillage to install down the probe, supporting wheel mechanism installs in the one side of leaning on the grillage discharge gate, the last probe of installing of supporting wheel mechanism, go up the probe and the centre of a circle of the equal directional steel ball of lower probe at the during operation, first drive axle device is installed and is set up in the bottom and the slant that lean on the grillage, second drive axle device is installed and is being leaned on the top of grillage and slant down device, the rotating shaft tip of first drive axle device and the rotating shaft tip of second drive axle device are equipped with alloy wheel respectively, two alloy wheel with supporting wheel mechanism drags the steel ball, the rotating shaft of first drive axle device and the rotation axis of second drive axle device are the right angle and arrange, the rotational speed of the rotating shaft of the first drive shaft device and the rotational speed of the rotating shaft of the second drive shaft device are not consistent.

In the above scheme, the first drive shaft device and the second drive shaft device are both driven by a stepping motor, and the cooling fins are mounted on the motor mounting side of the first drive shaft device and the motor mounting side of the second drive shaft device.

In the scheme, the supporting wheel mechanism comprises a first driving motor, a connecting plate and a supporting wheel, the first driving motor is in transmission connection with the connecting plate through a screw and nut mechanism, the end part of the connecting plate is fixedly connected with a supporting frame of the supporting wheel, the supporting wheel is in contact with a steel ball during working, and the upper probe is installed on the connecting plate.

In the above scheme, the eddy current testing device further comprises a ball pressing mechanism, the ball pressing mechanism comprises a second driving motor, a tension spring plate and a pressing wheel, the second driving motor is in transmission connection with the tension spring plate through a lead screw nut mechanism, a tension spring is arranged on the tension spring plate, the tension spring plate is in elastic connection with the pressing wheel through the tension spring, and the pressing wheel is in contact with the steel ball at the working time.

In the above scheme, eddy current testing device still includes material loading cylinder and material returned cylinder, the material loading cylinder is installed in the feed inlet one side that leans on the grillage, the material returned cylinder is installed in discharge gate one side that leans on the grillage.

In the above scheme, still include installing support and platform support body, the eddy current testing device is fixed in the installing support, the platform support body is installed in one side of installing support, the blown down tank is installed at the top of platform support body, the blown down tank is connected with the discharge gate of eddy current testing device, the top of platform support body is fixed with the feed chute through the support, the feed chute is connected with the feed inlet of eddy current testing device, the one side downward sloping setting that the feed chute is close to the feed inlet of eddy current testing device.

In the above scheme, the electric box is installed to one side of installing support, the display screen is installed at the top of installing support, the control box is installed to top one side of installing support.

In the above scheme, the discharge chute is provided with at least two sorting grooves, and the inlet of each sorting groove is provided with a guide plate.

In the scheme, the tail end of the separation groove is provided with the separation channel induction switch frame.

Compared with the prior art, the invention has the beneficial effects that: the rotating shaft of the first drive shaft device and the rotating shaft of the second drive shaft device are arranged at a right angle, and the rotating speed of the rotating shaft of the first drive shaft device is different from that of the rotating shaft of the second drive shaft device. By arranging the two driving shafts perpendicular to each other, wide alloy wheels 351 are contacted with the steel balls by the two driving shafts, so that the steel ball bearing and driving device can adapt to bearing and driving of steel balls with different diameters. The warp direction of the steel ball is driven to rotate by the independent stepping motors, the rotating speeds of the two rotating shafts are different, so that the two driving shafts generate speed difference to drive the steel ball to generate a certain rotating speed in the weft direction, and thus, a scanning expansion line is formed, and the purpose of scanning the whole surface of the steel ball is achieved.

Therefore, additional expansion wheel components are not needed, the detection of steel balls with different diameters can be adapted in a certain range, other components do not need to be replaced, workpieces with steel balls with different diameters only need to input appropriate parameters on a display screen through an operation box, and during the use process, if mechanical abrasion occurs, the correction compensation of an expansion line can be carried out in a mode of modifying parameter values in a certain range, so that the control precision is improved. The steel ball is carried by two high-rigidity alloy wheels, and the mechanical life of the part is prolonged. Therefore, compared with the prior art, the method is more stable in operation, has the advantages of improving the detection precision, reducing the cost loss and making preconditions for accurate automatic detection.

Drawings

FIG. 1 is a schematic structural diagram of a conventional steel ball detection device;

FIG. 2 is a schematic overall perspective view of the present invention;

FIG. 3 is a schematic view of the overall front view structure of the present invention;

FIG. 4 is a schematic view of the overall top view of the present invention;

FIG. 5 is a schematic view of the eddy current test apparatus according to the present invention;

FIG. 6 is a schematic front view of the structure of FIG. 5;

FIG. 7 is a schematic structural diagram of a main component for detecting a steel ball according to the present invention;

FIG. 8 is a schematic front view of the structure of FIG. 7;

FIG. 9 is a schematic view showing the bottom structure of the sorting tank of the present invention.

Reference numbers in the figures: 1-existing steel ball detection devices; 11-a wheel carrier; 12-a deployment wheel; 13-a support wheel; 14-a drive wheel; 15-a detection probe; 2, mounting a bracket; 21-an electrical box; 22-a display screen; 23-an operation box; 3-eddy current testing device; 31-a feeding cylinder; 32-a material returning cylinder; 33-a ball pressing mechanism; 331-tension spring plate; 332-a pinch roller; 34-a supporting wheel mechanism; 341-connecting plate; 342-a support wheel; 35-first drive shaft arrangement; 351-alloy wheel; 36-lower probe; 37-upper probe; 38-second drive shaft arrangement; 381-heat sink fins; 39-a backing plate frame; 4-platform frame body; 5-discharging a trough; 51-a sorting tank; 52-sorting channel inductive switch rack; 53-a material guide plate; 54-a drive motor; 6-a feeding groove.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples.

Embodiment 1, as shown in fig. 5 to 8, an eddy current testing machine for steel balls comprises an eddy current testing device 3, wherein the eddy current testing device 3 comprises a supporting wheel mechanism 34, a first driving shaft device 35, a second driving shaft device 38 and a backup plate frame 39. The backing plate frame 39 is a frame body for supporting the main components of the steel ball eddy current testing machine, a lower probe 36 is installed on one side of the bottom of the backing plate frame 39 through a support, and a detection point of the lower probe 36 is arranged obliquely upwards and is used for detecting a steel ball rolling from the top. The supporting wheel mechanism 34 is arranged at one side of the material outlet of the support plate frame 39, the supporting wheel mechanism 34 is provided with an upper probe 37, the detection point of the upper probe 37 is obliquely arranged downwards and is used for detecting the steel ball rolled from the top, and the upper probe 37 and the lower probe 36 both point to the circle center of the steel ball during working.

The upper probe 37 and the lower probe 36 are both used for detecting the quality of the outer surface of the steel ball, such as quality problems of cracks, pits, convex hulls and the like on the surface of the steel ball, only one probe can be started to detect the quality of the surface of the steel ball during working, and the other probe is used for standby detection.

The supporting wheel mechanism 34 comprises a first driving motor, a connecting plate 341 and a supporting wheel 342, the first driving motor is in transmission connection with the connecting plate 341 through a screw-nut mechanism, the connecting plate 341 moves up and down under the driving of the first driving motor, the end part of the connecting plate 341 is fixedly connected with a supporting frame of the supporting wheel 342, so that the supporting wheel 342 can be driven to move up and down under the driving of the first driving motor, the supporting wheel 342 is in contact with a steel ball during working, and the upper probe 37 is installed on the connecting plate 341.

In this supporting wheel mechanism 34, supporting wheel 342 is used for supporting the steel ball, goes up probe 37 and is used for detecting the quality on steel ball surface, and supporting wheel 342 reciprocates certain distance under first driving motor's drive when meetting the steel ball of different diameters, adapts to the steel ball of different sizes, for the steel ball of different diameters provides the support, and at the removal in-process, also drive probe 37 and move together, the convenience is detected the steel ball of different diameters.

The first drive shaft assembly 35 is mounted at the bottom of the backrest frame 39 at an angle of between 40 and 50 degrees, preferably 45 degrees, and is disposed diagonally upwardly. The second drive shaft assembly 38 is mounted on top of the yoke 39 and is disposed diagonally downwardly at an angle of between 40-50 degrees, preferably 45 degrees. The end part of the rotating shaft of the first driving shaft device 35 and the end part of the rotating shaft of the second driving shaft device 38 are respectively provided with an alloy wheel 351, the two alloy wheels 351 and the supporting wheel mechanism 34 drag the steel ball, and the alloy wheels 351 are made of alloy materials and used for enhancing the hardness of the wheel body and improving the abrasion resistance of the wheel body during contact detection with the steel ball.

And the rotational axis of the first drive shaft arrangement 35 and the rotational axis of the second drive shaft arrangement 38 are arranged at right angles, the rotational speed of the rotational axis of the first drive shaft arrangement 35 and the rotational speed of the rotational axis of the second drive shaft arrangement 38 are not identical. The first drive shaft device 35 and the second drive shaft device 38 are both driven by stepping motors, and the motor mounting side of the first drive shaft device 35 and the motor mounting side of the second drive shaft device 38 are both provided with cooling fins 381 for dissipating heat during operation of the reduction motors mounted on the first drive shaft device 35 and the second drive shaft device 38.

By arranging the two driving shafts perpendicular to each other, wide alloy wheels 351 are contacted with the steel balls by the two driving shafts, so that the steel ball bearing and driving device can adapt to bearing and driving of steel balls with different diameters. The steel ball is driven by the independent stepping motors to rotate in the warp direction, the pulse difference of the stepping motors is controlled and output by the PLC, and the rotating speeds of the two rotating shafts are different, so that the two driving shafts generate a speed difference to drive the steel ball to generate a certain rotating speed in the weft direction, a scanning expansion line is formed, and the purpose of scanning the surface of the whole steel ball is achieved.

As a preferred scheme, the eddy current detection device 3 further includes a ball pressing mechanism 33, the ball pressing mechanism 33 includes a second driving motor, a tension spring plate 331 and a pressing wheel 332, the second driving motor is in transmission connection with the tension spring plate 331 through a screw-nut mechanism, a tension spring is arranged on the tension spring plate 331, the tension spring plate 331 is in elastic connection with the pressing wheel 332 through the tension spring, and the pressing wheel 332 is in contact with the steel ball during operation. Under the drive of the second driving motor, the lead screw nut mechanism can drive the tension spring plate 331 to move up and down, so as to drive the pinch roller 332 to move up and down, and according to the difference of the diameters of the steel balls, the pinch roller is lifted to a corresponding position to press the steel balls, thereby stabilizing the eddy current detection position of the steel balls.

Preferably, the eddy current inspection device 3 further comprises a feeding cylinder 31 and a material returning cylinder 32, wherein the feeding cylinder 31 is installed on one side of the feed port of the support plate frame 39, and is used for pushing the steel ball to the inspection station after the feeding cylinder 31 acts when the steel ball enters the feed port of the eddy current inspection device 3, so that the two alloy wheels 351 and the support wheel mechanism 34 drag the steel ball. The material returning cylinder 32 is arranged on one side of the material outlet of the support plate frame 39, after the steel ball is detected, the support wheel 13 rises, the steel ball slides down, and the steel ball is moved out of the detection station through the action of the material returning cylinder 32 and enters the material outlet groove 5.

In embodiment 2, please refer to fig. 1 to 4, based on embodiment 1, the above solution further includes a mounting bracket 2 and a platform frame body 4, the eddy current testing apparatus 3 is fixed in the mounting bracket 2, specifically, the backup plate frame 39 is fixed with the mounting bracket 2 through a bolt, so that the whole eddy current testing apparatus 3 is fixed in the mounting bracket 2. Platform support body 4 is installed in one side of installing support 2, and blown down tank 5 is installed at the top of platform support body 4, and blown down tank 5 is connected with eddy current inspection device 3's discharge gate.

The discharge chute 5 is arranged to be inclined downwards integrally, so that the steel balls can roll down conveniently. The discharge chute 5 is provided with at least two sorting chutes 51, one of the sorting chutes 51 is used for normally rolling out qualified steel balls, the other one of the sorting chutes 51 is used for rolling out steel balls with defective appearance, and different sorting chutes 51 can be arranged according to the defects on the surfaces of the steel balls in a classified manner. The inlet of the sorting trough 51 is provided with a guide plate 53, the lower part of the guide plate is controlled by a rotary cylinder 54, and the guide plate 53 is used for rotating the position of the guide plate 53 to enable the steel balls to roll down to different sorting troughs 51 for sorting.

Preferably, a sorting channel sensing switch frame 52 is installed at the end of the sorting chute 51 for detecting the passage of the steel balls of different diameter sizes through the corresponding sorting chute 51.

The top of platform support body 4 is fixed with feed chute 6 through the support, and feed chute 6 is connected with eddy current testing device 3's feed inlet, and one side downward sloping setting that feed chute 6 is close to eddy current testing device 3's feed inlet is convenient for the steel ball roll and is detected in eddy current testing device 3.

An electric box 21 is installed on one side of the mounting support 2 and used for managing each electric control device in the steel ball eddy current testing machine, a display screen 22 is installed on the top of the mounting support 2 and used for displaying the distribution of the surface quality, the quantity and the defect proportion of steel balls, and an operation box 23 is installed on one side of the top of the mounting support 2 and used for controlling the functional modules of the display screen 22 and achieving automatic production.

The scheme is characterized in that the rotation of the steel balls is controlled by the differential motion of the driving shafts of the two driving shaft devices to achieve the function of unfolding the scanning line, so that an additional unfolding wheel 12 component is not needed, the detection of the steel balls with different diameters can be adapted in a certain range without replacing other components, workpieces with the steel balls with different diameters only need to directly input proper parameters on the display screen 22 through the operation box 23, and in the using process, if a mechanical abrasion phenomenon exists, the correction compensation of the unfolding line can be carried out in a certain range by modifying parameter values, and the control precision is improved. The steel balls are carried by two high-rigidity alloy wheels 351, and the mechanical life of the parts is prolonged. Compared with the prior art, the method is more stable in operation, has the advantages of improving detection precision, reducing cost loss and making preconditions for accurate automatic detection.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.