CN208254527U - inner hole automatic detecting machine - Google Patents

Abstract

The utility model discloses an automatic detection machine for inner holes, which comprises a feeding mechanism, a tooling fixture, a station switching mechanism, a front detecting mechanism, a reverse detecting mechanism, a blanking mechanism and an abutment, and the tooling fixture is installed on the station switching mechanism The station switching mechanism is set on the base platform and performs a step-by-step rotary motion around a rotation center line. The feeding mechanism, front detection mechanism, reverse detection mechanism and unloading mechanism are sequentially set on the base along the rotation direction of the station switching mechanism. On the platform and around the periphery of the station switching mechanism. Therefore, when the inner hole automatic detection machine of the present utility model is working, the station switching mechanism drives the tooling fixture to stop at the feeding station of the feeding mechanism and the front detection work of the front detection mechanism in turn during the stepping rotary motion. position, the reverse detection station of the reverse detection mechanism and the blanking station of the blanking mechanism. Therefore, the inner hole automatic detection machine of the utility model has high working efficiency, compact structure and high degree of automation.

Description

Inner Hole Automatic Inspection Machine

technical field

The utility model relates to the detection field, in particular to an inner hole automatic detection machine.

Background technique

With the development of science and technology and the progress of humanities, people have higher and higher requirements for inner hole detection.

The traditional inner hole detection method is that workers manually use various tools for detecting inner holes such as go-no-go gauges, micrometers, etc., and manually classify them according to the measurement results. This method has long working hours for workers, easy fatigue, and labor costs. High, low work efficiency, prone to operational errors, and defects of strong subjectivity.

The existing inner hole automatic detection tools include CCD detection equipment and laser diameter detector. The CCD detection equipment uses a CCD camera to take pictures, and uses image comparison software for image analysis to obtain the size of the detection inner hole. The laser diameter detector consists of two parts: the transmitter and the receiver. The light from the laser light-emitting diodes passes through the optical system to form a light curtain. The shadow image of the measured object is finally formed on the linear CCD array through the telescope system. The signal handler calculates its size. The laser diameter detector is connected to the computer through a line, and can be displayed on the computer screen through the corresponding development software, and the tester can control the laser scanner through the data reflected by the computer software. Although CCD detection and laser detection can detect the inner hole, the cost is high, and the control and maintenance are more complicated.

Therefore, there is an urgent need for an inner hole automatic detection machine with high work efficiency and high degree of automation to overcome the above-mentioned defects.

Utility model content

The purpose of the utility model is to provide an automatic detection machine for inner holes with high working efficiency and high degree of automation.

In order to achieve the above purpose, the inner hole automatic detection machine of the utility model is suitable for being electrically connected with a controller, including a feeding mechanism, a tooling fixture, a station switching mechanism, a front detection mechanism, a reverse detection mechanism, a blanking mechanism and an abutment . The tooling fixture is installed on the station switching mechanism, the station switching mechanism is arranged on the base platform and performs a step-by-step rotary motion around a rotation center line, the feeding mechanism, the front detection mechanism, The reverse detection mechanism and the unloading mechanism are sequentially arranged on the base platform along the rotation direction of the station switching mechanism, and the feeding mechanism, the front detection mechanism, the reverse detection mechanism and the unloading mechanism are also switched around the station. In the periphery of the mechanism, the station switching mechanism drives the tooling fixture to stop at the feeding station of the feeding mechanism, the front detection station of the front detection mechanism, and the reverse detection mechanism in sequence during the stepping rotary motion. The detection station on the reverse side of the machine and the blanking station of the blanking mechanism.

Preferably, the inner hole automatic detection machine of the present utility model also includes an incoming material vibration mechanism arranged on the base platform, the incoming material vibration mechanism is adjacent to the feeding mechanism, and the feeding mechanism The workpieces transported by the incoming vibration mechanism are grabbed and placed on the tooling fixture located at the loading station.

Preferably, the inner hole automatic detection machine of the present utility model also includes a discharge storage mechanism arranged on the base platform, the discharge storage mechanism is adjacent to the blanking mechanism, and the blanking mechanism will be located at The workpiece on the fixture at the unloading station is grabbed and placed at the discharge storage mechanism.

Preferably, the front detection mechanism includes a front detection head, the back detection mechanism includes a back detection head, and the front detection head is located above the jig when the jig is at the front detection station, The reverse detection head is located below the fixture when the fixture is at the reverse detection station.

Preferably, the station switching mechanism includes a turntable and a rotary driving device for driving the turntable to perform a step-by-step rotary motion, the turntable turns around the rotation center line relative to the base, so The rotation center line is arranged along the up-down direction of the base.

Preferably, each of the feeding mechanism, the front detection mechanism, the reverse detection mechanism and the unloading mechanism corresponds to one of the tooling fixtures, and the station switching mechanism drives the same tooling during the stepping rotary motion. The clamps are sequentially docked at the loading station of the loading mechanism, the front detection station of the front detection mechanism, the reverse detection station of the reverse detection mechanism, and the unloading station of the unloading mechanism.

Preferably, the feeding mechanism includes a reclaiming manipulator and a gripping device, the gripping device is installed on the reclaiming manipulator; the reclaiming manipulator drives the gripping device between the loading station and the incoming Move between the material vibrating mechanism.

Preferably, the unloading mechanism includes a translation device, a lifting device and a grabbing device, the lifting device is installed on the translation device, the grabbing device is installed on the lifting device, and the grabbing device With the cooperation of the translation device and the lifting device, the workpiece on the tooling fixture located at the unloading station is grabbed.

Preferably, the front detection mechanism further includes a front electric cylinder and a rotary motor, the front electric cylinder drives the rotary motor and the front detection head to slide up and down at the front detection station, and the rotary motor drives the The front detection head rotates automatically.

Preferably, the reverse detection mechanism further includes a positioning cylinder, a clamping block, a reverse electric cylinder and a rotating motor, the clamping block is installed on the positioning cylinder, and the reverse electric cylinder drives the rotating motor and the reverse The detection head slides up and down at the reverse detection station, and the positioning cylinder drives the clamping block to slide up and down so that the clamping block clamps or loosens the tooling fixture located at the reverse detection station The workpiece, the clamping block is located on the upper workpiece corresponding to the reverse detection head.

Compared with the prior art, the inner hole automatic detection machine of the present invention uses the station switching mechanism to drive the tooling fixtures to stop at the feeding station and the front of the feeding mechanism in turn during the stepping rotary motion. The front detection station of the detection mechanism, the reverse detection station of the reverse detection mechanism and the blanking station of the blanking mechanism, so when the inner hole automatic detection machine of the present invention works, the feeding mechanism places the workpiece on the After the tooling fixture at the loading station is installed, the station switching mechanism drives the tooling fixture to rotate from the loading station to the front inspection station, back inspection station and unloading station in sequence. The detection mechanism detects the reverse side, and finally the blanking mechanism removes the workpiece detected by the front and back detection mechanism from the fixture. Therefore, the inner hole automatic detection machine of the present invention has high working efficiency, compact structure and high automation.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the automatic inner hole detection machine of the present invention.

Fig. 2 is a three-dimensional structural schematic diagram of another angle of the inner hole automatic detection machine of the present invention.

Fig. 3 is a top structural schematic diagram of the inner hole automatic detection machine of the present invention.

Fig. 4 is a schematic perspective view of the three-dimensional structure of the workpiece viewed from the front.

Fig. 5 is a schematic perspective view of the three-dimensional structure of the workpiece viewed from the reverse side.

Fig. 6 is a three-dimensional structural schematic view of fixing the workpiece on the fixture of the automatic inner hole detection machine of the present invention.

Fig. 7 is a three-dimensional structural schematic diagram of the feeding mechanism in the inner hole automatic detection machine of the present invention.

Fig. 8 is a side structural schematic view of the feeding mechanism shown in Fig. 7 .

Fig. 9 is a three-dimensional schematic diagram of the unloading mechanism and part of the discharging storage mechanism in the inner hole automatic detection machine of the present invention.

Fig. 10 is a three-dimensional structural schematic diagram of the front detection mechanism in the automatic inner hole detection machine of the present invention.

FIG. 11 is a schematic side view of the front detection mechanism shown in FIG. 10 .

Fig. 12 is a three-dimensional structural schematic diagram of the reverse side detection mechanism in the inner hole automatic detection machine of the present invention.

Fig. 13 is a side view schematic diagram of the reverse side detection mechanism shown in Fig. 12 .

Detailed ways

In order to describe the technical content and structural features of the present utility model in detail, further description will be made below in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1 to Fig. 5, the inner hole automatic detection machine 100 of the present utility model is suitable for being electrically connected with a controller (not shown in the figure), including the feeding mechanism 1, the tooling fixture 6, the station switching mechanism 5, the front Detection mechanism 2, reverse detection mechanism 3, feeding mechanism 4, incoming vibration mechanism 7, discharging storage mechanism 8 and abutment 9. The fixture 6 is installed on the station switching mechanism 5, and the station switching mechanism 5 is set on the base 9 and performs a step-by-step rotary motion around a rotation center line L; the feeding mechanism 1, the front detection mechanism 2, and the back detection mechanism 3 and the unloading mechanism 4 are successively arranged on the base platform 9 along the rotation direction of the station switching mechanism 5, and the feeding mechanism 1, the front detection mechanism 2, the reverse detection mechanism 3 and the unloading mechanism 4 also surround the position switching mechanism 5. Periphery; the station switching mechanism 5 drives the tooling fixture 6 to stop at the feeding station of the feeding mechanism 1, the front detection station of the front detection mechanism 2, and the back detection mechanism 3 during the stepping rotary motion. The reverse detection station and the blanking station of the blanking mechanism 4 meet the requirement that the loading mechanism 1 places the workpiece 200 on the tooling fixture 6 at the loading station, and the tooling fixture at the front detection station The workpiece 200 on the 6 is subjected to positive detection, the workpiece 200 on the tooling fixture 60 at the reverse side detection station is subjected to backside detection, and the workpiece 200 on the tooling fixture 60 at the unloading station is unloaded, so as to realize Operational requirements for automatic detection of the inner hole of the workpiece 200. The incoming vibrating mechanism 7 is arranged on the base 9, and the incoming vibrating mechanism 7 is adjacent to the feeding mechanism 1. The incoming vibrating mechanism 7 makes the workpieces 200 arranged neatly through vibration, so that the feeding mechanism 1 vibrates the materials. The workpiece 200 conveyed by the mechanism 7 is grabbed and placed on the fixture 6 located at the feeding station, thereby improving the efficiency of the inner hole automatic detection machine 100 of the present invention and reducing the error rate. The discharge storage mechanism 8 is arranged on the base platform 9, the discharge storage mechanism 8 is adjacent to the blanking mechanism 4, and the workpiece 200 on the tooling fixture 6 at the blanking station is grabbed by the blanking mechanism 4 and placed on the There are 8 discharge storage mechanisms, so that after the workpiece 200 is detected, it can be classified and placed, so as to facilitate subsequent operations. For example, in this embodiment, the workpiece 200 is a motor commutator (as shown in FIGS. 4 and 5 ), and both the front and back sides of the motor commutator need to be inspected, but the invention is not limited thereto. It can be understood that, in other embodiments, at least one of the incoming vibrating mechanism 7 and the outgoing storage mechanism 8 is omitted according to actual needs, so the above examples are not limited. More specifically, as follows:

Please refer to FIG. 1 to FIG. 3 , the station switching mechanism 5 includes a turntable 51 and a rotary driving device (not shown) for driving the turntable 51 to make a stepping rotary motion. The rotary table 51 rotates relative to the base 9 around the rotation center line L, and the rotation center line L is arranged along the vertical direction of the base 9, so that the rotary table 51 performs a horizontal rotary motion. Specifically, in this embodiment, the turntable 51 is a disc structure, and the round disc structure without edges and corners makes the turntable 51 not easily scratch other parts during the rotary motion, thereby improving the utility model. The safety and reliability of the inner hole automatic detection machine 100; preferably, in this embodiment, the turntable 51 is set up, that is, there is a storage space under the turntable 51, which is conducive to the rear detection mechanism 3 from the workpiece 200. detection below, but not limited to. It should be noted that since the slewing driving device is well known to those skilled in the art, it will not be described in detail here.

Please refer to FIG. 6 , the workpiece 200 is installed on the fixture 6 , and the front of the workpiece 200 faces up and the reverse side faces down. Specifically, in this embodiment, the tooling fixture 6 is installed on the turntable 51, so that the tooling fixture 6 is driven to perform a step-by-step rotary motion by the turntable 51, so that the tooling fixture 6 stops at the loading station and the front side in turn. At the detection station, the reverse detection station and the blanking station, 6 single-turn cycles of the tooling and fixtures are realized. Preferably, in this embodiment, the number of fixtures 6 is consistent with the number of stations, that is, the feeding mechanism 1, the front detection mechanism 2, the back detection mechanism 3 and the blanking mechanism 4 each correspond to a tooling fixture 6, At this time, the fixtures 6 are spaced apart along the circumferential direction of the turntable 51, so the station switching mechanism 5 drives the same fixture 6 to stop on the top of the feeding mechanism 1 in turn during the stepping rotary motion. The material station, the front detection station of the front detection mechanism 2, the back detection station of the back detection mechanism 3, and the blanking station of the blanking mechanism 4; preferably, each fixture 6 occupies The central angles are the same, that is, the central angle is equal to 360 degrees divided by the number of tooling fixtures 6. The purpose of this setting is: when one tooling fixture 6 is located at the loading station, the remaining tooling fixtures 6 are respectively at the corresponding stations. The stepping angle of the turntable 51 is equal to that of each fixture 6, thereby improving the work efficiency, but not limited thereto. Specifically, in this embodiment, the fixture 6 includes a positioning plate 61, a bearing 62 and a clamp cover 63, and the positioning plate 61 is used for installation with the turntable 51. Preferably, in this embodiment, the positioning plate 61 also There are positioning blocks 611, the positioning blocks 611 are formed on the outside of the positioning plate 61, there are two positioning blocks 611, and all the positioning blocks 611 are arranged at intervals along the outside of the positioning plate 61, so that each station can be targeted at one time. Two workpieces 200; of course, in other embodiments, the positioning block 611 can be one, three or four, so as to match the number of different workpieces 200 at one time, so it is not limited thereto. The bearing 62 is placed in the center of the positioning block 611, the jig cover 63 is placed in the bearing 62, the workpiece 200 is set in the jig cover 63, and the positioning block 611, the bearing 62 and the jig cover 63 cooperate to make the workpiece 200 It is fixed in the fixture sleeve 63 so as to rotate and reduce the damage to the workpiece 200 during the detection process, and at the same time, it is beneficial to improve the detection accuracy. For example, the bearing 62 is a movable angular contact bearing, which is beneficial to bear radial load and axial load at the same time to ensure the accuracy of detection, but is not limited to this; the positioning plate 61 and the rotary table 51 are detachably connected, which is convenient for users to replace tooling Fixture 6, but not limited thereto. When the station switching mechanism 5 is working, the workpiece 200 is clamped on the tooling fixture 6, so the rotary table 51 drives the tooling fixture 6 and the workpiece 200 together to make a step-by-step rotary motion, and each tooling fixture 6 passes through the loading process in turn. station, front inspection station, reverse inspection station and blanking station.

Please refer to Fig. 2 to Fig. 3, incoming vibrating mechanism 7 comprises vibrating conveying platform 71 and material distribution cylinder 72, and the beginning end of vibrating conveying platform 71 is connected to material inlet, and the terminal end of vibrating conveying platform 71 is close to material distributing cylinder 72, by The vibrating conveying table 71 vibrates and transports the workpieces 200 to the terminal, and the workpieces 200 are separated by the distributing cylinder 72, which is convenient for the feeding mechanism 1 to pick up.

Please combine Figure 7 and Figure 8, the feeding mechanism 1 includes a retrieving manipulator 11 and a gripping device 12, the gripping device 12 is installed on the retrieving manipulator 11; the retrieving manipulator 11 drives the gripping device 12 to the feeding station Move between the vibration mechanism 7 and the incoming material; specifically, the feeding mechanism 1 also includes a fixed seat 13 , a connecting rod 14 and a cylinder connecting plate 15 . The fixed seat 13 is arranged on the base 9, and one end of the connecting rod 14 is vertically fixedly connected to the fixed seat 13, and the other end of the connecting rod 14 is connected to the casing of the reclaiming manipulator 11, and the action part 111 of the reclaiming manipulator 11 is connected to Cylinder connecting plate 15, the clamping device 12 is connected below the cylinder connecting plate 15, so as to support the retrieving manipulator 11 through the fixing seat 13 and the connecting rod 14, so as to ensure the working reliability of the reclaiming manipulator 11. More specifically, the clamping device 12 includes a cylinder 121 and an air claw 122. The cylinder 121 is installed under the cylinder connecting plate 15, and the air claw 122 is installed on the cylinder 121. Preferably, two opposite cylinders are arranged below the cylinder 121. The connection part 1211, the connection part 1211 is used to connect with the air gripper 122; the air gripper 122 is respectively connected with the connection part 1211 in the length direction of the cylinder 121; optionally, two opposite air grippers 122 are combined into a Y-shaped structure , so that the air gripper 122 is more capable of clamping or loosening the workpiece 200, but not limited thereto. When working, the cylinder 121 drives the connecting portion 1211 to act in the opposite direction, so that the relative distance between the two air claws 122 becomes larger to clamp the workpiece 200; The relative pitch becomes smaller to loosen the workpiece 200 . It should be noted that in this embodiment, the air claw 122 acts on the inner hole of the workpiece 200 to clamp or loosen the workpiece 200 . Preferably, the number of clamping devices 12 is consistent with the number of positioning blocks 611. In this embodiment, there are two clamping devices 12, so that the feeding mechanism 1 can clamp two workpieces 200 at one time, which speeds up loading. The working efficiency of the material mechanism 1 is improved, thereby improving the working efficiency of the inner hole automatic detection machine 100 of the present utility model. Certainly, in other embodiments, when the number of positioning blocks 611 is three, there are three clamping devices 12 , so the number of clamping devices 12 is not limited thereto. Wherein, when the feeding mechanism 1 is working, the retrieving manipulator 11 drives the clamping device 12 to move between the feeding station and the incoming material vibration mechanism 7, when the reclaiming manipulator 11 and the clamping device 12 move to the incoming material vibrating mechanism At the end of 7, the workpieces 200 at this time have been neatly arranged. After the cylinder 121 drives the air claws 122 to clamp the workpieces 200, the reclaiming manipulator 11 quickly moves to the tooling fixture 6 at the loading station, and the cylinder 121 drives the air claws 122 The workpiece 200 is loosened to transfer the workpiece 200 on the material vibrating mechanism 7 to the tooling fixture 6 located at the feeding station.

Please refer to Fig. 9, the unloading storage device 8 includes a good product conveying device 81 and a defective product storage box 82. Since the probability of the workpiece 200 being a good product is greater than that of a defective product, the good product conveying device 81 is adjacent to the unloading station, and the defective product storage box 82 is adjacent to the good product Conveying device 81, so that it is convenient for the unloading mechanism 4 to transfer the detected workpiece 200 from the unloading station to the good product conveying device 81 or the defective product storage box 82, so as to realize classified storage according to the detection results, which not only reduces labor force, but also improves work efficiency. Efficiency, convenient subsequent operation. Specifically, the good product conveying device 81 is a conveyor belt structure, and the workpiece 200 can be quickly transported to the next station through the good product conveying device 81 of the conveyor belt structure. Furthermore, the defective product storage box 82 is provided with two storage cavities, and the two storage cavities respectively form a front defective storage box 821 and a reverse defective storage box 822. The defective product storage box 82 is divided into two types of storage boxes, so it can , and store the defective workpieces 200 separately, so as to realize more convenient and clear classified storage. More specifically, a protective cover 823 is slid on the defective product storage box 82 to prevent the workpiece 200 from being contaminated with dust and to prevent workers from taking defective products by mistake. Wherein, when the detection result is a good product, the unloading mechanism 4 grips the workpiece 200 and transfers it to the good product conveying device 81; Storage box 821 ; when the detection result is a reverse-side defective product, the unloading mechanism 4 clamps and transfers the workpiece 200 to the reverse-side defective storage box 822 .

Please refer to FIG. 1 , FIG. 2 and FIG. 9 , the unloading mechanism 4 includes a translation device 41 , a lifting device 42 , a grabbing device 43 and a fixing frame 44 . The fixed frame 44 is arranged on the base platform 9, the translation device 41 is installed on the fixed frame 44, the lifting device 42 is installed on the translation device 41, and the grasping device 43 is installed on the lifting device 42; The workpiece 200 at the blanking station is transferred to the blanking storage mechanism 8 . Specifically, the translation device 41 is a servo manipulator, by means of the servo manipulator, the translation device 41 drives the lifting device 42 and the second clamping device 43 together to move between the unloading station, the good product conveying device 81, and the defective product storage box according to the detection results. 82 to move and stay between. More specifically, the lifting device 42 is a lifting cylinder, so that the lifting cylinder drives the grasping device 43 to lift up and down at the corresponding positions of the unloading station, the good product conveying device 81 or the defective product storage box 82 . It should be noted that the structure of the grasping device 43 is consistent with that of the clamping device 12 , so it will not be repeated here. In addition, the grabbing device 43 is connected to the lifting device 42 through the cylinder connecting plate 45 . When the unloading mechanism 4 works, the translation device 41 drives the elevating device 42 and the grasping device 43 to translate to the unloading station, and the elevating device 42 drives the grasping device 43 to clamp the workpiece 200 on the tooling fixture 6 downward, and then Then lift up, and then the translation device 41 drives the lifting device 42, the grabbing device 43 and the workpiece 200 to translate together to the corresponding storage position, and the grabbing device 43 releases the workpiece 200 so that the workpiece 200 falls on the corresponding storage position. It can be understood that when the lowering mechanism 4 omits the fixing frame 44 , the translation device 41 is directly fixed on the base 9 at this time, so the above examples are not limited.

Please refer to Fig. 1 to Fig. 3, and Fig. 10 to Fig. 11, front detection mechanism 2 comprises front electric cylinder 23, rotating motor 26 and front detection head 28, and front detection head 28 is positioned at tooling fixture 6 when the front detection station. The corresponding top of the fixture 6 , that is, the front detection head 28 faces the front of the workpiece 200 . The front electric cylinder 23 drives the rotating motor 26 and the front detection head 28 to slide up and down at the front detection station, and the rotation motor 26 drives the front detection head 28 to rotate to meet the requirements of front detection. Specifically, in this embodiment, the front detection mechanism 2 further includes a base 21, a connecting plate 22, a pressure sensor 24, a motor connecting plate 25, a collet 27 and a return sensor 29, the base 21 is arranged on the base 9, The connecting plate 22 is vertically connected to one side of the base 21, the front electric cylinder 23 is vertically connected to the connecting plate 22, and the slide table of the front electric cylinder 23 is always located above the fixture 6, so that the front electric cylinder 23 lifts up and down above the fixture 6; the slide table of the front electric cylinder 23 is connected with the motor connecting plate 25, the pressure sensor 24 is connected above the motor connecting plate 25, the rotary motor 26 is connected below the motor connecting plate 25, and the rotary motor 26 is below Connect the collet 27, the front detection head 28 is sleeved under the collet 27, and the connecting plate 22 is provided with a return sensor 29 on both sides in the width direction; preferably, the connecting plate 22 is opposite to the front electric cylinder 23. A rib 221 is provided on one side, and the stability of the connecting plate 22 is strengthened by the rib 221; at the same time, the base 21 can conveniently adjust the horizontal distance between the connecting plate 22 and the parts on the connecting plate 22 relative to the station switching mechanism 5. When the front detection mechanism 2 works, the front electric cylinder 23 drives the motor connection plate 25 and the parts connected with the motor connection plate 25 to move downward together, and the rotary motor 26 rotates to drive the collet 27 and the front detection head 28 to rotate together, and the front detection head While 28 is moving downward, the front detection head 28 also rotates, so that the front detection head 28 penetrates the inner hole of the workpiece 200 from the front of the workpiece 200. After the pressure sensor 24 receives the signal, the front electric cylinder 23 drives the motor connection plate 25 and the parts on the motor connecting plate 25 move upward together until the return sensor 29 stops after receiving the return signal.

Please refer to Fig. 1 and Fig. 3, and Fig. 12 to Fig. 13, the reverse detection mechanism 3 has roughly the same structure as the front detection mechanism 2, and also includes a base 31, a connection plate 32, a reverse electric cylinder 33, a pressure sensor 34, and a motor connection plate 35. Rotating motor 36, collet 37, reverse detection head 38 and return sensor 39. The difference is that the back detection head 38 is located below the fixture 6 when the jig 6 is in the back detection position, that is, the back detection head 38 faces the back side of the workpiece 200 . In addition, the reverse detection mechanism 3 also includes a positioning cylinder 310, the positioning cylinder 310 is connected to the upper side of the connecting plate 32, and the reverse electric cylinder 33 is connected to the lower side of the connecting plate 35; and the positioning cylinder 310 is always lifted up and down above the fixture 6 , the slide table of the opposite electric cylinder 33 lifts up and down under the fixture 6 all the time. Furthermore, the clamping block 320 is connected to the bottom of the positioning cylinder 310, and the clamping block 320 faces the front of the workpiece 200. The clamping block 320 is driven by the positioning cylinder 310 to clamp the workpiece 200, so that the detection head 38 on the reverse side can be moved from the bottom to the bottom. The inner hole of the upper penetrating workpiece 200 is detected for the reverse side. Furthermore, the slide table of the reverse electric cylinder 33 is always located under the fixture 6 , so that the reverse electric cylinder 33 moves up and down under the fixture 6 . The slide table of the opposite electric cylinder 33 is connected with the motor connecting plate 35, the pressure sensor 34 is connected below the motor connecting plate 35, the rotating motor 36 is connected above the motor connecting plate 35, the collet 37 is connected above the rotating motor 36, and the collet 37 is covered with Establish reverse detection head 38. When the reverse detection mechanism 3 works, the positioning cylinder 310 drives the clamping block 320 to move downward until the front of the workpiece 200 is pressed, and the reverse electric cylinder 33 drives the motor connection plate 35 and the parts connected with the motor connection plate 35 to move upward together, and rotate The motor 36 rotates and drives the collet 37 and the reverse detection head 38 to rotate together. When the reverse detection head 38 moves upward, the reverse detection head 38 rotates, thereby realizing that the reverse detection head 38 penetrates into the inner hole of the workpiece 200 from the reverse side of the workpiece 200. After the pressure sensor 34 receives the signal, the reverse electric cylinder 33 drives the motor connection plate 35 and the parts on the motor connection plate 35 to move downward together until the return sensor 39 receives the return signal and stops. After the detection is completed, the positioning cylinder 310 drives the clamping block 320 to move upward to loosen the workpiece 200 . Of course, in other embodiments, the reverse detection mechanism 3 also includes a positioning cylinder 310, a clamping block 320, a reverse electric cylinder 33 and a rotating motor 36, the clamping block 320 is installed on the positioning cylinder 310, and the reverse electric cylinder 33 drives the rotating motor 36 and the reverse detection head 38 slide up and down at the reverse detection station, and the positioning cylinder 310 drives the clamping block 320 to slide up and down so that the clamping block 320 clamps or loosens the workpiece on the tooling fixture 6 at the reverse detection station 200 , the clamping block 320 is located on the upper workpiece 200 corresponding to the detection head 38 on the reverse side. For example, in this embodiment, the front detection head 28 and the back detection head 38 are both go-no-go gauges, so it is not limited thereto.

In conjunction with the accompanying drawings, the working principle of the automatic inner hole detection machine 100 of the present utility model is explained: the incoming vibration mechanism 7 vibrates the workpiece 200 neatly while dividing the workpiece 200 into single pieces, and the retrieving manipulator 11 clamps the workpiece 200 to the position Let go of the tooling fixture 6 at the loading station, and the tooling fixture 6 rotates with the turntable 51 to the front detection station for front detection, then rotates to the reverse detection station for reverse detection, and finally rotates to the unloading station, by The unloading mechanism 4 clamps the detected workpiece 200 to a corresponding storage position. If the detection result is qualified, the workpiece 200 falls into the good product conveying device 81;

Compared with the prior art, the inner hole automatic detection machine 100 of the present utility model drives the tooling fixture 6 to stop at the feeding station of the feeding mechanism 1 in sequence through the station switching mechanism 5 during the stepping rotary motion. , the front detection station of the front detection mechanism 2, the reverse detection station of the back detection mechanism 3 and the blanking station of the blanking mechanism 4, so when the inner hole automatic detection machine 100 of the present utility model works, the upper After the material mechanism 1 places the workpiece 200 on the tooling fixture 6 at the feeding station, the station switching mechanism 5 drives the tooling fixture 6 to rotate from the feeding station to the front detection station, the reverse detection station for detection, and finally rotate to At the blanking station, the workpiece 200 is taken away from the fixture 6 by the blanking mechanism 4, so the inner hole automatic detection machine 100 of the present invention has high working efficiency, compact structure and high degree of automation.

The above disclosures are only preferred examples of the utility model, and cannot limit the scope of rights of the utility model. Therefore, equivalent changes made according to the claims of the utility model all belong to the scope covered by the utility model.

Claims (10)

1. An automatic inspection machine for inner holes, suitable for electrical connection with a controller, characterized in that it includes a feeding mechanism, a tooling fixture, a station switching mechanism, a front detection mechanism, a reverse detection mechanism, a blanking mechanism and an abutment , the tooling fixture is installed on the station switching mechanism, the station switching mechanism is arranged on the base platform and performs a step-by-step rotary motion around a rotation center line, the feeding mechanism, the front detection mechanism , the reverse detection mechanism and the blanking mechanism are sequentially arranged on the base platform along the rotation direction of the station switching mechanism, and the feeding mechanism, the front detection mechanism, the reverse detection mechanism and the blanking mechanism also surround the station The periphery of the switching mechanism, the station switching mechanism drives the tooling fixture to stop at the feeding station of the feeding mechanism, the front detection station of the front detection mechanism, The reverse detection station of the reverse detection mechanism and the blanking station of the blanking mechanism. 2. The inner hole automatic detection machine according to claim 1, further comprising an incoming vibration mechanism arranged on the base platform, the incoming vibration mechanism is adjacent to the feeding mechanism, and the The feeding mechanism grabs the workpieces conveyed by the incoming material vibrating mechanism and places them on the fixture located at the feeding station. 3. The automatic inspection machine for inner holes according to claim 1, further comprising a discharge storage mechanism arranged on the base platform, the discharge storage mechanism is adjacent to the blanking mechanism, and the The blanking mechanism grabs the workpiece on the tooling fixture at the blanking station and places it at the discharge storage mechanism. 4. The inner hole automatic detection machine according to claim 1, wherein the front detection mechanism comprises a front detection head, the reverse detection mechanism comprises a reverse detection head, and the front detection head is in the position of the tooling fixture The front detection station is located above the jig, and the back detection head is located below the jig when the jig is at the back detection station. 5. The inner hole automatic detection machine according to claim 1, characterized in that, the station switching mechanism includes a rotary table and a rotary drive device for driving the rotary table to perform a stepping rotary motion, and the rotary The table rotates relative to the base around the rotation center line, and the rotation center line is arranged along the up and down direction of the base. 6. The inner hole automatic detection machine according to claim 1, characterized in that, each of the loading mechanism, the front detection mechanism, the reverse detection mechanism and the blanking mechanism corresponds to one of the tooling fixtures, and the station switching mechanism During the step-by-step rotary motion, the same fixture is driven to stop at the loading station of the feeding mechanism, the front detection station of the front detection mechanism, and the reverse detection station of the reverse detection mechanism. And the blanking station of the blanking mechanism. 7. The inner hole automatic detection machine according to claim 2, wherein the feeding mechanism comprises a retrieving manipulator and a gripping device, the gripping device is installed on the reclaiming manipulator, and the taking The material manipulator drives the clamping device to move between the material loading station and the material incoming vibration mechanism. 8. The inner hole automatic detection machine according to claim 1, wherein the blanking mechanism comprises a translation device, a lifting device and a grabbing device, the lifting device is installed on the translation device, and the grabbing device The picking device is installed on the lifting device, and the grabbing device grabs the workpiece on the tooling fixture at the unloading station under the cooperation of the translation device and the lifting device. 9. The inner hole automatic detection machine according to claim 4, characterized in that, the front detection mechanism also includes a front electric cylinder and a rotating motor, and the front electric cylinder drives the rotating motor and the front detection head in the The front detection station slides up and down, and the rotating motor drives the front detection head to rotate. 10. The inner hole automatic detection machine according to claim 4, characterized in that, the reverse detection mechanism also includes a positioning cylinder, a clamping block, a reverse electric cylinder and a rotating motor, and the clamping block is installed on the positioning On the cylinder, the reverse electric cylinder drives the rotating motor and the reverse detection head to slide up and down at the reverse detection station, and the positioning cylinder drives the clamping block to slide up and down so that the clamping block clamps Tighten or loosen the workpiece on the fixture located at the reverse-side detection station, and the clamping block is located above the corresponding reverse-side detection head.