CN214585107U - Ultrasonic detection equipment for needle bearing retainer - Google Patents

Abstract

The utility model relates to a bearing holder ultrasonic testing equipment, it can include feeding conveyer belt, branch material manipulator, first and second conveyer belt, first and second vortex locating component, first and second ultrasonic testing subassembly, first and second NG unloading subassembly, OK unloading manipulator and ejection of compact conveyer belt. The first and second conveyor belts are arranged side by side in front and back and are provided with first to fifth stations in sequence in the left-right direction. The first eddy current positioning assembly and the second eddy current positioning assembly are arranged at the second station, and the welding point position of the needle bearing retainer is positioned through eddy current detection. The first ultrasonic detection assembly and the second ultrasonic detection assembly are arranged at a third station, and the welding points are detected through the ultrasonic probe. The utility model discloses can automated inspection go out the solder joint defect of bearing holder and reject the nonconforming product automatically, efficient, only need carry on simple operation training can, the cost of labor is low.

Description

Ultrasonic detection equipment for needle bearing retainer

Technical Field

The utility model belongs to nondestructive test equipment field specifically relates to a bearing holder ultrasonic detection equipment.

Background

Fig. 8 shows a needle bearing cage 100, which needle bearing cage 100 has two upper and lower welding points 101. In order to ensure the product quality, the two solder joints 101 need to be inspected to detect whether there are solder joint defects (voids, missing material, cold solder, lack of fusion, etc.) that may occur. At present, the detection mode is carried out manually by means of corresponding detection instruments, on one hand, the detection efficiency is low, on the other hand, professional training needs to be carried out on workers, and the labor cost is high.

Disclosure of Invention

The utility model aims at providing a bearing holder ultrasonic testing equipment to solve above-mentioned problem. Therefore, the utility model discloses a specific technical scheme as follows:

an ultrasonic detection device for a needle bearing retainer can comprise a feeding conveyer belt, a material distribution manipulator, a first conveyer belt, a second conveyer belt, a first vortex positioning assembly, a second vortex positioning assembly, a first ultrasonic detection assembly, a second ultrasonic detection assembly, a first NG blanking assembly, a second NG blanking assembly, an OK blanking manipulator and a discharging conveyer belt, wherein the first conveyer belt and the second conveyer belt are arranged side by side from front to back and are sequentially provided with a first station to a fifth station along the left and right direction, a plurality of tool fixtures are arranged on the first conveyer belt and the second conveyer belt, the feeding conveyer belt and the discharging conveyer belt are respectively arranged at the left end and the right end of the first conveyer belt in the middle, the material distribution manipulator is arranged at the first station so as to clamp a needle bearing retainer to be detected onto the tool fixtures of the first conveyer belt and the second conveyer belt from the feeding conveyer belt, and the first vortex positioning assembly and the second positioning assembly are arranged at the second station, the welding point position of the needle bearing retainer is positioned through eddy current detection, the first ultrasonic detection assembly and the second ultrasonic detection assembly are arranged at a third station, the welding point is detected through an ultrasonic probe, the first NG blanking assembly and the second NG blanking assembly are arranged at a fourth station, so that the needle bearing retainer which is unqualified to be detected is clamped to an NG material box from the first conveying belt and the second conveying belt, and the OK blanking manipulator is arranged at a fifth station, so that the needle bearing retainer which is qualified to be detected is clamped to the discharging conveying belt from the first conveying belt and the second conveying belt.

Further, the material distributing manipulator and the OK discharging manipulator are identical in structure and respectively comprise a YZ two-dimensional movement module, a finger cylinder installed on the YZ two-dimensional movement module and a pair of clamping jaws fixed on the finger cylinder.

Further, the YZ two-dimensional movement module comprises an electric sliding table arranged in the front-back direction, a lifting cylinder fixed on a sliding block of the electric sliding table and an L-shaped connecting seat installed on the lifting cylinder, and the finger cylinder is fixed on the L-shaped connecting seat.

Furthermore, the first eddy current positioning assembly and the second eddy current positioning assembly are identical in structure and respectively comprise an eddy current probe, a support, a lifting cylinder, a connecting plate, a servo motor and an ejector block, the eddy current probe is a plane point probe and is installed to be close to the needle bearing retainer and flush with a welding point of the needle bearing retainer, the lifting cylinder is fixed on the support, the connecting plate is fixed on an expansion link of the lifting cylinder, the servo motor is installed on the connecting plate, and the ejector block is fixed on an output shaft of the servo motor and is used for driving the needle bearing retainer to rotate.

Furthermore, the first ultrasonic detection assembly and the second ultrasonic detection assembly are identical in structure and respectively comprise a water tank, an ultrasonic probe, a probe mounting seat and an air cylinder, the first conveying belt and the second conveying belt penetrate through the water tank, the ultrasonic probe is fixed on the probe mounting seat and located in the water tank, and the probe mounting seat is fixed on a telescopic rod of the air cylinder, so that the ultrasonic probe can move back and forth.

Further, the ultrasonic probe is a focused water sac ultrasonic probe.

Furthermore, the first NG blanking assembly and the second NG blanking assembly are identical in structure and respectively comprise a support, a transverse moving cylinder, a lifting cylinder, a finger cylinder and a pair of clamping jaws, wherein the transverse moving cylinder is fixed on the support, the lifting cylinder is installed on a telescopic rod of the transverse moving cylinder, the finger cylinder is installed on a telescopic rod of the lifting cylinder, and the pair of clamping jaws are installed on fingers of the finger cylinder.

Further, the clamping jaw includes installation department and lower clamping part, it has the mounting groove to go up the installation department, the mounting groove is used for accepting the finger of finger cylinder, lower clamping part has the arc clamping face.

Further, the NG bin is disposed between the first and second conveyor belts.

Furthermore, the ultrasonic detection equipment for the needle bearing retainer also comprises a case, and an operation panel and a display screen are installed on the case.

The utility model adopts the above technical scheme, the beneficial effect who has is: can automated inspection go out the solder joint defect of bearing holder and reject unqualified product automatically, efficient, only need carry on simple operation training can, the cost of labor is low.

Drawings

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

Fig. 1 is a perspective view of the ultrasonic inspection apparatus for a needle bearing holder according to the present invention;

FIG. 2 is a perspective view of the ultrasonic inspection apparatus for needle bearing cages of FIG. 1 with the upper frame assembly removed;

FIG. 3 is a perspective view of a first conveyor belt of the needle bearing cage ultrasonic testing apparatus shown in FIG. 2;

FIG. 4 is a perspective view of a dispensing robot of the ultrasonic inspection apparatus for needle bearing retainers shown in FIG. 2;

FIG. 5 is a perspective view of the eddy current positioning assembly of the needle bearing cage ultrasonic testing apparatus shown in FIG. 2;

FIG. 6 is a perspective view of the ultrasonic testing assembly of the ultrasonic testing apparatus for needle bearing cages of FIG. 2 with the water tank removed;

FIG. 7 is a perspective view of an NG blanking assembly of the ultrasonic inspection apparatus for needle bearing cages shown in FIG. 2;

fig. 8 is a perspective view of the needle bearing holder.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 and 2, an ultrasonic inspection apparatus for a needle bearing cage 100 for ultrasonic inspection and automatic sorting of the needle bearing cage may include a housing 1 and a feed conveyor 2 installed in the housing 1, a material-separating robot 3, first and second conveyors 4, first and second eddy current positioning assemblies 5, first and second ultrasonic inspection assemblies 6, first and second NG blanking assemblies 7, an OK blanking robot 8, a discharge conveyor 9, and the like. Wherein, the case 1 can be made of aluminum section and corresponding door plate. An operation panel 10 and a display screen 11 are installed on the case 1, and are used for operating the device and displaying detection results and the like. The bottom of the cabinet 1 is mounted with casters 12 to facilitate movement. In addition, the top of the case 1 is also provided with an audible and visual alarm device 13 for generating audible and visual alarm for abnormal conditions occurring in the detection process. The PLC-based electrical control system is arranged in the case 1 and used for realizing automatic feeding and discharging, sorting, defect signal alarming, automatic report printing, automatic ultrasonic detection of equipment and the like of workpieces. The specific structures and functions of the feeding conveyor belt 2, the material separating manipulator 3, the first and second conveyor belts 4, the first and second eddy current positioning assemblies 5, the first and second ultrasonic detection assemblies 6, the first and second NG blanking assemblies 7, the OK blanking manipulator 8, the discharging conveyor belt 9, and the like will be described below, respectively.

As shown in fig. 2 and 3, the feeding conveyor belt 2 and the discharging conveyor belt 9 are centrally arranged on the left and right sides, respectively, to achieve feeding from the left and discharging from the right. The structure of the infeed conveyor belt 2 and the outfeed conveyor belt 9 is well known and will not be described here. The first and second conveyor belts 4 are arranged side by side in front and back between the feeding conveyor belt 2 and the discharging conveyor belt 9, and are provided with first to fifth stations in order in the left-right direction. A plurality of tooling jigs 41 are arranged on the first and second conveyor belts 4, and the tooling jigs 41 are used for placing the needle bearing retainer 100. Each station corresponds to a tooling fixture 41. The tooling fixture 41 includes a rotatable base 411 and a support 412 fixed on the base. The needle bearing cage 100 may be sleeved over the support 412.

As shown in fig. 2 and 4, the dispensing manipulator 3 is arranged in a first station to grip the needle bearing holders 100 to be inspected from the feed conveyor 2 onto the tooling fixtures 41 of the first and second conveyors 4. Specifically, the material separating manipulator 3 may include a YZ two-dimensional movement module 31, a finger cylinder 32 mounted on the YZ two-dimensional movement module 31, and a pair of clamping jaws 33 fixed on the finger cylinder 32. The YZ two-dimensional motion module 31 may include an electric sliding table 311 disposed in a front-back direction, a lifting cylinder 312 fixed on a sliding block 3111 of the electric sliding table 311, and an L-shaped connection seat 313 installed on the lifting cylinder 312, and the finger cylinder 32 is fixed on the L-shaped connection seat 313. Therefore, the pair of holding jaws 33 can perform the forward and backward and upward and downward movements to move to the desired gripping position and the loading position. The electric slide 311 may be commercially available, such as MJ45 electric slide, etc. The clamping jaw 33 comprises an upper mounting portion 331 and a lower clamping portion 332, wherein the upper mounting portion 331 has a mounting slot for receiving a finger of the finger cylinder 32 to facilitate mounting and fixing of the clamping jaw 33. The lower clamping portion 332 has an arc-shaped clamping surface to enable reliable clamping of the needle bearing holder 100. Preferably, jaws 33 may be made of a rubber material to avoid damage to needle bearing cage 100.

As shown in fig. 2 and 5, the first and second eddy current positioning assemblies 5 are disposed at the second station to position the spot weld locations of the needle bearing cage 100 by eddy current testing. Specifically, the first and second eddy current positioning assemblies 5 are identical in structure and each may include an eddy current probe 51, a support 52, a lifting cylinder 53, a connecting plate 54, a servo motor 55, a top block 56, and the like. The eddy current probe 51 is a flat spot probe installed close to the needle bearing holder 100 and flush with one of the welding points 101 (specifically, an upper welding point) of the needle bearing holder 100. The eddy current probe 51 is electrically connected to an eddy current flaw detector (not shown) which is in communication with the PLC controller. Since the hardness of the weld 101 is different from that of the main body of the needle bearing holder 100, the position of the weld 101 can be determined by detecting the hardness by the eddy current probe 51. The support 52 is zigzag-shaped. The lifting cylinder 53 is fixed on the support 52 (specifically, the top), with its telescopic rod located below. The connecting plate 54 is fixed on the telescopic rod of the lifting cylinder 53, and the servo motor 55 is installed on the connecting plate 54, that is, the servo motor 55 and the lifting cylinder 53 are arranged on the connecting plate 54 side by side. The top block 56 is fixed to an output shaft of the servo motor 55. The top block 56 is cylindrical. When the needle bearing retainer 100 moves to the second station, the lifting cylinder 53 operates, the top block 56 descends to abut against the needle bearing retainer 100, and the servo motor 55 rotates to drive the needle bearing retainer 100 to rotate. When the solder point 101 is rotated to the detection position of the eddy current probe 51, the solder point position is fixed to the set position (i.e., the detection position of the ultrasonic probe) by the servo motor 55 after the eddy current probe 51 detects the hardness change.

As shown in fig. 2 and 6, the first and second ultrasonic inspection modules 6 are disposed at the third station for inspecting the weld spot by the ultrasonic probe. The first and second ultrasonic detection assemblies 6 are identical in structure and each can include a water tank 61, two ultrasonic probes 62, a probe mounting base 63 and an air cylinder 64. The first and second carrier tapes 4 pass through the water tank 61, and the water tank 61 is used to supply water to couple the ultrasonic probe 62 with the welding point 101 of the needle bearing holder 100. The two ultrasonic probes 62 are fixed on the probe mounting seat 63 and are positioned in the water tank 1, and the probe mounting seat 65 is fixed on the telescopic rod of the air cylinder 64, so that the ultrasonic probes 62 can move back and forth, and ultrasonic scanning detection on the welding points 101 of the needle bearing retainer 100 is realized. The ultrasonic probe 62 is electrically connected to an ultrasonic detector (not shown) which is in communication with the PLC controller. Whether the solder joint 101 has defects (air holes, missing material, cold solder, unfused, etc.) can be detected by the ultrasonic probe 62. Preferably, the ultrasonic probe 62 may be a focused water bladder ultrasonic probe, which eliminates the need for water jet coupling and simplifies the construction of the first and second ultrasonic detection assemblies 6.

As shown in fig. 2 and 7, the first and second NG blanking assemblies 7 are arranged at the fourth station to pick up the needle bearing holders 100, which are detected to be defective, from the first and second conveyor belts 4 to the NG hopper 70. The NG hopper 70 is arranged between the first and second conveyor belts 4 to facilitate blanking. The first NG blanking assembly 7 and the second NG blanking assembly 7 are identical in structure and can respectively comprise a support 71, a traversing air cylinder 72, a lifting air cylinder 73, a finger air cylinder 74 and a pair of clamping jaws 75, wherein the traversing air cylinder 72 is fixed on the support 71; the lifting cylinder 73 is arranged on the telescopic rod of the transverse moving cylinder 72 through a first L-shaped connecting block 76; the finger cylinder 74 is arranged on the telescopic rod of the lifting cylinder 73 through a first L-shaped connecting block 77; a pair of jaws 75 are mounted on the fingers of the finger cylinder 74. The structure of the clamping jaw 75 is the same as that of the clamping jaw 33 of the material distribution manipulator 3, and the description thereof is omitted.

As shown in fig. 2, an OK blanking robot 8 is arranged at the fifth station to pick up the needle bearing holders 100 that are qualified for inspection from the first and second conveyors 4 onto the discharge conveyor 9. The structure of the OK blanking manipulator 8 is the same as that of the material distribution manipulator 3, and the details are not repeated here.

The working process of the ultrasonic detection equipment for the needle roller bearing retainer of the utility model is briefly explained as follows: the feeding conveyer belt 2 is fed, and after the workpieces are in place, the clamping jaws of the material distribution manipulator 3 grab the upper workpieces (the needle bearing retainer 100) of the feeding conveyer belt 2 to respectively feed two detection lines, namely, the first conveyer belt 4 and the second conveyer belt 4 are placed. When a first workpiece is placed on the tool, the first conveying belt 4 and the second conveying belt 4 rotate to bring the workpiece to a second station, the eddy current positioning assembly 5 positions the welding point position of the workpiece at the second station, and after the eddy current probe 51 detects hardness change, the welding point position is fixed to the set position through the servo motor 55. The first and second conveyor belts 4 rotate to feed the workpiece to the ultrasonic inspection station (third station). The ultrasonic probe 62 is driven to the welding position by the cylinder 64 for detection, and after the detection is finished, the workpiece is brought to a sorting and blanking station (fourth station) by the first and second conveyor belts 4. If the workpiece is detected to be NG (unqualified), the workpiece is clamped to the NG bin 70 by the first and second NG blanking assemblies 7. The qualified products are continuously conveyed to a fifth station by the first and second conveyor belts 4; and then the OK feeding manipulator 8 clamps the workpiece to the material combining conveyer belt 9 for feeding. Whole process need not personnel and intervenes, and work efficiency is high, and the workman only need carry on simple operation training can, the cost of labor is low.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. An ultrasonic detection device for a needle bearing retainer is characterized by comprising a feeding conveyer belt, a material distribution manipulator, a first conveyer belt, a second conveyer belt, a first vortex positioning assembly, a second vortex positioning assembly, a first ultrasonic detection assembly, a second ultrasonic detection assembly, a first NG blanking assembly, a second NG blanking assembly, an OK blanking manipulator and a discharging conveyer belt, wherein the first conveyer belt and the second conveyer belt are arranged in parallel from front to back and are sequentially provided with a first station to a fifth station along the left and right direction, a plurality of tool fixtures are arranged on the first conveyer belt and the second conveyer belt, the feeding conveyer belt and the discharging conveyer belt are respectively arranged at the left end and the right end of the first conveyer belt in the middle, the material distribution manipulator is arranged at the first station so as to clamp the needle bearing retainer to be detected onto the tool fixtures of the first conveyer belt and the second conveyer belt from the feeding conveyer belt, and the first vortex positioning assembly and the second positioning assembly are arranged at the second station, the welding point position of the needle bearing retainer is positioned through eddy current detection, the first ultrasonic detection assembly and the second ultrasonic detection assembly are arranged at a third station, the welding point is detected through an ultrasonic probe, the first NG blanking assembly and the second NG blanking assembly are arranged at a fourth station, so that the needle bearing retainer which is unqualified to be detected is clamped to an NG material box from the first conveying belt and the second conveying belt, and the OK blanking manipulator is arranged at a fifth station, so that the needle bearing retainer which is qualified to be detected is clamped to the discharging conveying belt from the first conveying belt and the second conveying belt.

2. The ultrasonic inspection apparatus for needle roller bearing retainers according to claim 1, wherein the material separating manipulator and the OK blanking manipulator are identical in structure and each comprise a YZ two-dimensional motion module, a finger cylinder mounted on the YZ two-dimensional motion module, and a pair of clamping jaws fixed on the finger cylinder.

3. The ultrasonic inspection apparatus for needle roller bearing cages according to claim 2, wherein the YZ two-dimensional movement module comprises an electric slide table arranged in a front-rear direction, a lift cylinder fixed to a slide block of the electric slide table, and an L-shaped coupling seat mounted on the lift cylinder, and the finger cylinder is fixed to the L-shaped coupling seat.

4. The ultrasonic inspection apparatus for needle roller bearing cages according to claim 1, wherein the first and second eddy current positioning assemblies are identical in structure and each comprise an eddy current probe, a support, a lift cylinder, a connecting plate, a servo motor and a top block, the eddy current probe is a flat point probe and is installed to be close to the needle roller bearing cage and flush with a welding point of the needle roller bearing cage, the lift cylinder is fixed to the support, the connecting plate is fixed to a telescopic rod of the lift cylinder, the servo motor is installed on the connecting plate, and the top block is fixed to an output shaft of the servo motor and is used for driving the needle roller bearing cage to rotate.

5. The needle bearing cage ultrasonic testing apparatus of claim 1 wherein said first and second ultrasonic testing assemblies are identical in construction and each comprise a water tank, an ultrasonic probe, a probe mount and a cylinder, said first and second conveyor belts passing through said water tank, said ultrasonic probe being secured to said probe mount and located in said water tank, said probe mount being secured to a telescoping rod of said cylinder such that said ultrasonic probe can move back and forth.

6. The needle bearing cage ultrasonic testing apparatus of claim 5, wherein said ultrasonic probe is a focused water bladder ultrasonic probe.

7. The needle bearing cage ultrasonic testing apparatus of claim 1, wherein said first and second NG blanking assemblies are identical in construction and each comprise a support, a traversing cylinder secured to said support, a lift cylinder mounted on the telescoping rod of said traversing cylinder, a finger cylinder mounted on the telescoping rod of said lift cylinder, and a pair of jaws mounted on the fingers of said finger cylinder.

8. The needle bearing cage ultrasonic testing apparatus of claim 7 wherein said clamping jaw includes an upper mounting portion and a lower clamping portion, said upper mounting portion having a mounting slot for receiving a finger of said finger cylinder, said lower clamping portion having an arcuate clamping surface.

9. The needle bearing cage ultrasonic testing apparatus of claim 1, wherein said NG magazine is disposed between said first and second conveyor belts.

10. The ultrasonic needle bearing cage inspection apparatus of claim 1, further comprising a housing on which an operating panel and a display screen are mounted.

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