Automatic thread detection device for production line

Abstract

The utility model relates to an automatic thread detection device for a production line, which comprises a table top and a multi-axis robot positioned on the outer side of the table top, the output end of the multi-axis robot is provided with a thread detection module, the middle of the table top is provided with a rotating module, and one side of the table top is provided with a blanking conveying module; the thread detection module is provided with a thread gauge installation block which can move up and down and rotate axially. The thread gauge installation block is used for installing a go gauge or a no-go gauge. Four carriers are distributed on the rotating module in an annular array mode with the center of the rotating module as the center, and the carriers are used for containing threaded products. The discharging conveying module comprises a carrying assembly and a conveying assembly line. According to the utility model, thread detection can be carried out at multiple stations at the same time, the production efficiency is improved, batch detection of thread parts is facilitated, automatic discharging and collecting work of detected good products can be completed through the discharging and conveying module, the automation degree is high, and batch and automatic flow production work can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to thread detection technical field, specifically, it shows a production line automatic thread detection device. BACKGROUND

[0002] In the field of machining, threaded connection is one of important ways of fixed connection. For the parts involving threaded connection, it is very important to detect whether the thread is qualified after machining, which is directly related to the precision problem of mutual adhesion of parts.

[0003] The existing technology patent No. CN208432170U discloses a thread detection mechanism, which comprises a rack, a cylinder, a motor and a thread detection rod, a cylinder fixing plate is arranged above the rack workbench, a cylinder is fixedly installed on the cylinder fixing plate, the cylinder fixing plate and the rack are connected through four outer guide columns, the piston rod of the cylinder is connected with the pressing plate through the cylinder fixing plate, the four outer guide columns pass through the four corners of the movable plate arranged below the pressing plate, the pressing plate and the movable plate are connected through four inner guide columns, the pressing plate moves up and down along the outer guide column under the driving of the cylinder; the movable plate is provided with a motor, the motor drives a plurality of thread detection rods arranged below the movable plate to synchronously rotate through a belt, and the rack workbench is provided with a product positioning seat corresponding to the thread detection rod.

[0004] However, in the prior art, only one workpiece can be detected at a time, the detection efficiency is low, and the automatic detection of the flow line cannot be adapted to the batch production. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a production line automatic thread detection device, which is suitable for flow line type automatic thread detection work.

[0006] The technical scheme is as follows:

[0007] A production line automatic thread detection device, which comprises a table top and a multi-axis robot outside the table top, an output end of the multi-axis robot is provided with a thread detection module, a middle part of the table top is provided with a rotating module, one side of the table top is provided with a blanking conveying module; the thread detection module has a thread gauge mounting block which can move up and down and rotate axially, and a through gauge or a stop gauge is installed on the thread gauge mounting block; four carriers are arranged in a ring array with the center thereof on the rotating module, and the carriers are used for placing threaded products; the blanking conveying module comprises a carrying assembly and a conveying flow line.

[0008] Further, the thread detection module comprises a detection rack, a displacement base plate and a lifting cylinder piece, the displacement base plate is movably arranged on the side of the detection rack through a sliding block sliding rail assembly, the lifting cylinder piece is arranged on the detection rack and its output end is vertically connected to the lower side of the displacement base plate.

[0009] The displacement base plate is provided with two pairs of servo motors and torsion mechanisms arranged in an up-down manner, the output end of the servo motor is connected to the torsion mechanism, and the rotating end of the torsion mechanism is connected to the thread gauge mounting block through a floating head.

[0010] In this way, the thread detection module has two thread gauge mounting blocks, one thread gauge mounting block is provided with a go gauge, and the other thread gauge mounting block is provided with a no-go gauge, so that two workstations can simultaneously perform thread detection, one can be used to detect the machining quality of internal threads on a part, and the other can be used to detect the machining quality of external threads on a part; the thread gauge mounting block can move axially under the action of the servo motor and the torsion mechanism, so as to measure the torsion value in real time, and the thread gauge mounting block can also move up and down under the action of the lifting cylinder and the displacement base plate, so as to adapt to the depth of the screw hole of the part, thereby improving the application range and detection accuracy of the thread detection module.

[0011] Furthermore, the outer side of the torsion mechanism is provided with a displacement sensor through a sensor mounting block, and the detection beam of the displacement sensor is vertically downward, so that the real-time distance of the thread detection module from the product on the carrier can be flexibly judged, and the working accuracy is improved.

[0012] Furthermore, the bottom of the detection rack is provided with a horizontal extension frame, and a guide groove is formed in the middle of the extension frame, which can be used for the up-down movement of the thread gauge mounting block. The guide groove provides a certain limiting effect on the displacement movement of the thread gauge mounting block, thereby ensuring the accuracy of the moving position of the thread gauge mounting block.

[0013] Furthermore, the bottom of the extension frame is provided with an extension rod, and a horizontal optical fiber sensor is arranged at the lower part of the extension rod. The optical fiber sensor is used to automatically judge the downward movement process of the thread gauge mounting block, thereby improving the safety of the thread detection module.

[0014] Furthermore, the rotating module comprises a cam divider, a speed regulating motor, a fixed table and a rotating disc, the cam divider and the speed regulating motor are installed on the surface of the table, the input end of the cam divider is connected to the output end of the speed regulating motor, the output end of the cam divider is connected to the rotating disc, four carriers are arranged in an annular array on the rotating disc, and the fixed table is fixedly arranged at the top middle of the cam divider. In this way, the ordered rotation of the rotating disc is realized by the cooperation of the speed regulating motor and the cam divider, so as to facilitate the automatic detection of the product on the corresponding carrier by the multi-axis robot, and batch operation is realized.

[0015] Furthermore, the surface of the carrier is provided with a product profile placement groove. The product profile placement groove is used to stably place the part product on the carrier, thereby ensuring the stability during detection.

[0016] Further, the carrying assembly comprises a carrying support, a bearing plate is arranged above one side of the conveying line at the top of the carrying support, a horizontal driving module is arranged on the surface of the bearing plate, a horizontal plate is arranged at the output end of the horizontal driving module, an up-down air cylinder is arranged on the horizontal plate, and the output end of the up-down air cylinder is connected with a suction disc carrying group downward. In this way, the suction disc carrying group above the bearing plate is moved to above the carrier by the horizontal driving module, the suction disc carrying group is controlled to approach the parts on the carrier by the up-down air cylinder, the suction disc carrying group completes the suction action on the parts, then the suction disc carrying group is lifted by the up-down air cylinder, the parts on the suction disc carrying group are moved to above the conveying line by the horizontal driving module until the parts are placed on the surface of the conveying line, and the conveying line realizes the unloading and collecting work on the good parts.

[0017] Compared with the prior art, the beneficial effects of the utility model lie in that the thread detection module on the multi-axis robot can detect the problems of the thread on the parts, such as the go gauge, the no go gauge, the rotten tooth and the bad tooth, the torque size is set by man-machine intelligence, the multi-station thread detection can be realized at the same time, the production efficiency is improved, the batch detection of the thread parts is facilitated, the good products after detection can also complete the automatic unloading and collecting work through the unloading and conveying module, the defective products are removed by the external mechanical hand or manually, the automation degree is high, the flow production work of batch automation can be met. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of a production line automatic thread detection device according to an embodiment of the utility model;

[0019] Figure 2 is a structural schematic view of a thread detection module according to an embodiment of the utility model;

[0020] Figure 3 is a related schematic view of a rotating module according to an embodiment of the utility model;

[0021] Figure 4 is a related schematic view of an unloading and conveying module according to an embodiment of the utility model;

[0022] Corresponding marks in the drawings: 1-table top, 2-multi-axis robot, 3-thread detection module, 4-rotation module, 5-conveying assembly, 6-conveying line; 31-detection rack, 32-displacement base plate, 321-slideway slider assembly, 33-lifting cylinder, 34-servo motor, 35-torsion mechanism, 36-floating head, 37-thread gauge mounting block, 38-sensor mounting block, 381-displacement sensor, 39-extension frame, 391-guide groove, 392-extension rod body, 393-fiber sensor; 41-carrier, 411-product profiling placement groove, 42-cam divider, 43-speed regulation motor, 44-fixing table, 45-rotating disc; 51-conveying support, 52-bearing plate, 521-cross plate, 53-crosswise driving module, 54-up and down cylinder, 55-suction cup conveying group. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application

[0024] The embodiment of the present application provides a production line automatic thread detection device, which is used for solving the technical problems proposed in the background art.

[0025] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 . Specifically, it mainly includes a table top 1 and a multi-axis robot 2 outside the table top 1, the output end of the multi-axis robot 2 is provided with a thread detection module 3, the multi-axis robot 2 realizes the free movement of the thread detection module 3 to drive the thread detection module 3 to move to different stations; the middle of the table top 1 is provided with a rotation module 4, one side of the table top 1 is provided with a blanking conveying module, the thread detection module 3 has a thread gauge mounting block 37 which can move up and down and rotate axially, and a through gauge or a stop gauge is installed on the thread gauge mounting block 37 to meet the detection work of internal threads and external threads; the rotation module 4 has four carriers 41 distributed in a ring array around the center thereof, and the carriers 41 are used for placing thread products; the blanking conveying module includes a conveying assembly 5 and a conveying line 6.

[0026] The thread part products are placed on the carriers, four carriers are driven by the rotating module to stop at the specified positions, then the multi-axis robot controls the thread detection module to hover above the carriers at the specified positions, and the thread part products placed on the carriers are subjected to corresponding thread detection, the defective products detected can be removed by the external robot or manually, and the good products detected are collected by the unloading conveying module. The automatic thread detection device of the production line has high automation degree, can meet the batch production line type automatic detection work, and has high detection efficiency.

[0027] In the embodiment, the thread detection module 3 comprises a detection rack 31, a displacement base plate 32 and a lifting cylinder 33. The displacement base plate 32 is movably arranged on the side of the detection rack 31 through a sliding block sliding rail assembly 321, and the lifting cylinder 33 is arranged on the detection rack 31 and has an output end vertically connected to one side of the lower part of the displacement base plate 32.

[0028] The displacement base plate 32 is provided with two pairs of servo motors 34 and torsion mechanisms 35 arranged in an up-down manner. The output end of the servo motor 34 is connected to the torsion mechanism 35, and the rotating end of the torsion mechanism 35 is connected to a thread gauge mounting block 37 through a floating head 36. The cooperation mode of the floating head and the thread gauge mounting block in the application can refer to the authorized patent application No. 202111085138.2 of the company, a floating thread gauge and an automatic thread detection device applying the thread gauge.

[0029] In this way, the thread detection module 3 has two thread gauge mounting blocks 37, one thread gauge mounting block is provided with a go gauge, and the other thread gauge mounting block is provided with a no go gauge, so that the two stations can simultaneously perform thread detection, one of which can be used to detect the machining quality of the internal thread of the part, and the other of which can be used to detect the machining quality of the external thread of the part. The thread gauge mounting block can move axially under the action of the servo motor and the torsion mechanism, so as to measure the torsion value in real time. The thread gauge mounting block can also move up and down under the action of the lifting cylinder and the displacement base plate, so as to adapt to the depth of the part hole, and improve the application range and detection accuracy of the thread detection module.

[0030] The outer side of the torsion mechanism 35 is provided with a displacement sensor 381 through a sensor mounting block 38, and the detection beam of the displacement sensor 381 is vertically downward. In this way, the real-time distance between the thread detection module and the product on the carrier can be flexibly judged, and the working accuracy is improved.

[0031] The bottom of the detection rack 31 is provided with a horizontal extension frame 39, and the middle part of the extension frame 39 is provided with a guide groove 391 through which the thread gauge mounting block 37 can pass up and down. The guide groove provides a certain limiting effect for the displacement movement of the thread gauge mounting block, so as to ensure the accuracy of the moving position of the thread gauge mounting block.

[0032] The bottom of the extension frame 39 is provided with an extension rod body 392, and the lower part of the extension rod body 392 is provided with a horizontal optical fiber sensor 393. The downward movement of the threaded gauge mounting block is automatically judged by the optical fiber sensor, and the safety of the threaded detection module is improved.

[0033] In the embodiment, the rotating module 4 comprises a cam divider 42, a speed regulating motor 43, a fixed table 44 and a rotating disc 45. The cam divider 42 and the speed regulating motor 43 are installed on the surface of the table top 1. The input end of the cam divider 42 is connected to the output end of the speed regulating motor 43, and the output end of the cam divider 42 is connected to the rotating disc 45 upward. Four carriers 41 are arranged in an annular array on the rotating disc 45. The fixed table 44 is fixedly arranged on the top of the cam divider 42. In this way, the ordered rotation of the rotating disc is realized by the cooperation of the speed regulating motor and the cam divider, so as to facilitate the automatic detection of the multi-axis robot on the products on the corresponding carriers.

[0034] The surface of the carrier 41 is provided with a product profile placing groove 411. It is ensured that the part product can be stably placed on the carrier through the product profile placing groove, so as to ensure the stability in the detection process.

[0035] In the embodiment, the carrying assembly 5 comprises a carrying support 51. The top of the carrying support 51 is provided with a bearing plate 52 above one side of the conveying line 6. The surface of the bearing plate 52 is provided with a transverse driving module 53. The output end of the transverse driving module 53 is provided with a horizontal plate 521. The horizontal plate 521 is provided with an up-down air cylinder 54. The output end of the up-down air cylinder 54 is connected to a suction disc carrying assembly 55 downward.

[0036] In this way, the suction disc carrying assembly on the bearing plate is moved above the carrier by the transverse driving module. Then the suction disc carrying assembly approaches the parts on the carrier by the up-down air cylinder. Finally, the suction disc carrying assembly completes the suction action of the parts. Then the suction disc carrying assembly is lifted by the up-down air cylinder. The parts on the suction disc carrying assembly are moved above the conveying line by the transverse driving module until the parts are placed on the surface of the conveying line. The good parts are collected by the conveying line.

[0037] The above only describes some embodiments of the present application. Those skilled in the art can make some modifications and improvements without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. An automatic thread detection device for a production line, characterized in that, The application relates to a multi-axis robot including a table top and a multi-axis robot outside the table top, an output end of the multi-axis robot is provided with a thread detection module, a middle part of the table top is provided with a rotating module, and one side of the table top is provided with a blanking conveying module; the thread detection module is provided with a thread gauge mounting block which can move up and down and rotate axially, and a through gauge or a stop gauge is arranged on the thread gauge mounting block; the rotating module is provided with four carriers which are arranged in a ring array with the centers of the carriers as the centers, and the carriers are used for placing thread products; and the blanking conveying module comprises a carrying assembly and a conveying assembly line.

2. The thread inspection device of claim 1, wherein, The thread detection module comprises a detection rack, a displacement base plate and a lifting cylinder, the displacement base plate is movably arranged on the side of the detection rack through a sliding block sliding rail assembly, and the lifting cylinder is arranged on the detection rack and has an output end connected to the lower side of the displacement base plate vertically downwards; The displacement base plate is provided with two pairs of servo motors and torsion mechanisms which are arranged in an up-down mode, the output end of the servo motor is connected to the torsion mechanism downwards, and the rotating end of the torsion mechanism is connected to the thread gauge mounting block downwards through a floating head.

3. The thread inspection device of claim 2, wherein, The outer side of the torsion mechanism is provided with a displacement sensor through a sensor mounting block, and the detection light beam of the displacement sensor is vertically downwards.

4. The thread inspection device of claim 2, wherein, The bottom of the detection rack is provided with a horizontal extension frame, and the middle part of the extension frame is provided with a guide groove through which the thread gauge mounting block can pass up and down.

5. The thread inspection device of claim 4, wherein, The bottom of the extension frame is provided with an extension rod body, and the lower part of the extension rod body is provided with a horizontal optical fiber sensor.

6. The thread inspection device of claim 1, wherein, The rotating module comprises a cam divider, a speed regulating motor, a fixed table and a rotating disc, the cam divider and the speed regulating motor are arranged on the surface of the table top, the input end of the cam divider is connected to the output end of the speed regulating motor, the output end of the cam divider is connected to the rotating disc upwards, the rotating disc is provided with four carriers which are arranged in a ring array, and the fixed table is fixedly arranged on the top middle part of the cam divider.

7. An automatic thread inspection device for a production line as claimed in claim 6, characterized in that The surface of the carrier is provided with a product profile placing groove.

8. The thread inspection device of claim 1, wherein, The carrying assembly comprises a carrying support, the top of the carrying support is provided with a bearing plate above one side of the conveying assembly line, the surface of the bearing plate is provided with a transverse driving module, the output end of the transverse driving module is provided with a horizontal plate, the horizontal plate is provided with up-down air cylinders, and the output end of the up-down air cylinders is connected to a suction disc carrying assembly downwards.

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