Tapping and detecting all-in-one machine for internal threads of MIM parts

Abstract

The utility model discloses an MIM part internal thread tapping detection all-in-one machine which comprises a machine frame and a working table, a vibration disc mechanism is installed on one side of the working table, a material receiving table is arranged at the discharging end of the vibration disc mechanism, and a rotating disc is rotationally installed on the working table on one side of the material receiving table. A material moving mechanism, a tapping mechanism, an air blowing cleaning mechanism, a thread detecting mechanism, a qualified product discharging mechanism and a defective product discharging mechanism are sequentially arranged on the portion, on the outer side of the rotating disc, of the workbench in the rotating direction of the rotating disc, and six part containing stations are evenly distributed on the upper surface of the rotating disc in the circumferential direction. A discharging channel is arranged on the workbench corresponding to the qualified product discharging mechanism and the defective product discharging mechanism, and a material receiving groove is arranged below the discharging channel. According to the device, the labor intensity is effectively reduced, the production efficiency is greatly improved, the procedure of repeatedly transferring the MIM parts is reduced, the time for thread tapping and detection is saved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder metallurgy injection molding process, and specifically relates to an integrated machine for tapping and detecting internal threads of MIM parts. Background Art

[0002] Metal injection molding, referred to as MIM, is a process of selecting metal powder and binder that meet the requirements of MIM, and then using appropriate methods to mix the powder and binder into a uniform feed at a certain temperature. After granulation, the molded blank is injected and degreased and sintered to become the final product. MIM parts have complex structures, such as most hinge structures that use MIM injection molding. After sintering, they need to be tapped. Tapping is to use a certain torque to screw the tap into the bottom hole to be drilled to produce an internal thread. In this process, the workpiece clamping position must be correct, and the center line of the threaded hole should be placed in a horizontal or vertical position as much as possible, so that it is easy to judge whether the tap axis is perpendicular to the plane of the workpiece when tapping. At present, the tapping machine used in the prior art manually places the MIM parts on a rotating turntable, and a placement station for placing the MIM parts is set on the turntable. During tapping, the turntable drives the MIM parts to rotate to the bottom of the tapping mechanism, and the tapping head of the tapping mechanism can tap the MIM parts. After the tapping is completed, the MIM parts can be taken out. The tapping machine of this structure has the following shortcomings during use: First, it requires manual feeding and unloading, which has high labor intensity and low production efficiency; second, it can only realize the tapping of MIM parts. After the tapping is completed, the MIM parts need to be transferred to the detection machine for thread detection. The tapping and detection are carried out separately, which adds some unnecessary processing procedures, and the practicability of the device during use is poor. Therefore, it is an objective need to develop a tapping detection integrated machine for the internal threads of MIM parts with strong practicability, high degree of automation, and high production efficiency. Summary of the invention

[0003] The utility model aims to provide an integrated machine for detecting the internal threads of MIM parts, which has strong practicability, high automation and high production efficiency.

[0004] The purpose of the utility model is achieved in this way, including a frame and a workbench, a vibration disk mechanism is installed on one side of the workbench, a material receiving platform is arranged at the discharge end of the vibration disk mechanism, a turntable is rotatably installed on the workbench on one side of the material receiving platform, a driving mechanism connected to the turntable is installed on the frame, a material moving mechanism, a tapping mechanism, an air blowing and cleaning mechanism, a thread detection mechanism, a qualified product unloading mechanism and a defective product unloading mechanism are arranged in sequence on the workbench outside the turntable along the rotation direction of the turntable, 6 parts placement stations are evenly distributed on the circumference of the upper surface of the turntable, and unloading channels are arranged on the workbenches corresponding to the qualified product unloading mechanism and the defective product unloading mechanism, and a material receiving trough is arranged at the lower side of the unloading channel.

[0005] Furthermore, the material moving mechanism includes a gantry, a translation drive and a first lifting cylinder. The gantry is mounted on a workbench, the translation drive is mounted on the top of the gantry, the cylinder seat of the first lifting cylinder is mounted on the translation drive, a suction disk is mounted on the end of the piston rod of the first lifting cylinder, a suction joint is mounted on the suction disk, and a plurality of suction nozzles are mounted on the bottom of the suction disk.

[0006] Furthermore, the air blowing and cleaning mechanism includes a support column, a translation drive and a second lifting cylinder. The support column is vertically installed on the workbench, the translation drive is installed on the top of the support column, the cylinder seat of the second lifting cylinder is installed on the translation drive, the end of the piston rod of the second lifting cylinder is installed with an air intake box, the air intake box is installed with an air intake joint, and the top of the air intake box is installed with a purge pipe.

[0007] Furthermore, the qualified product unloading mechanism includes a support column, a translation drive and a third lifting cylinder. The support column is vertically installed on the workbench, the translation drive is installed on the top of the support column, the cylinder seat of the third lifting cylinder is installed on the translation drive, a fixed plate is installed on the end of the piston rod of the third lifting cylinder, a fixed tube is installed at the bottom of the fixed plate, a quick-connect joint is installed on the fixed tube, a unloading blow pipe is installed at an angle at the bottom of the fixed tube, and the outlet of the unloading blow pipe faces one side of the unloading channel.

[0008] Preferably, the translation driver includes a crossbeam, a U-shaped slide and a translation cylinder. Guide grooves are processed on both sides of the crossbeam along the length direction of the crossbeam. The U-shaped slide includes two side panels symmetrically arranged at intervals and a base installed at the bottom of the two side panels. Movable slide blocks matching the guide grooves are provided on the opposite side surfaces of the two side panels. The movable slide blocks are slidably installed in the guide grooves. The cylinder seat of the translation cylinder is installed under the crossbeam, and the piston rod of the translation cylinder is fixedly connected to the base.

[0009] Furthermore, the thread detection mechanism includes a support beam, a first slider and an industrial camera. A slide bar is provided on one side of the support beam along the vertical direction of the support beam, and a plurality of positioning holes are provided at intervals on the slide bar. The first slider is slidably installed on the slide bar, and the first slider is connected and fixed to the slide bar by fastening bolts. The industrial camera is installed on the first slider through a connecting plate.

[0010] Preferably, the structure of the defective product unloading mechanism is the same as that of the qualified product unloading mechanism.

[0011] Preferably, two auxiliary air pipes are obliquely installed on the air inlet boxes on both sides of the purge pipe, and the angle between the two auxiliary air pipes and the purge outlet pipe gradually increases.

[0012] Preferably, a fill aperture is provided on the lower side of the industrial camera, the fill aperture is mounted on the second slider via a connecting rod, the second slider is movably mounted on the slide bar, and the second slider is connected and fixed to the slide bar via a fastening bolt.

[0013] Compared with the prior art, the advantages of the device are: the material transfer mechanism, tapping mechanism, air blowing and cleaning mechanism, thread detection mechanism, qualified product unloading mechanism and defective product unloading mechanism arranged in the device can realize automatic loading, automatic tapping, automatic blowing of thread debris, automatic thread detection and automatic unloading of MIM parts without manual intervention. The device not only effectively reduces the labor intensity and greatly improves the production efficiency, but also integrates the tapping and thread detection into one device, reduces the process of repeated transfer of MIM parts, saves the time of thread tapping and detection, improves the practicability of the device, and further improves the production efficiency. It has the advantages of strong practicability, high degree of automation and high production efficiency, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a main schematic diagram of the utility model;

[0015] Figure 2 It is a top view schematic diagram of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the air blowing cleaning mechanism 7 in the utility model;

[0017] Figure 4 for Figure 3 AA view in;

[0018] Figure 5 It is a structural schematic diagram of the thread detection mechanism 8 in the utility model;

[0019] In the figure: 1-workbench, 2-vibration plate mechanism, 3-receiving table, 4-turntable, 5-material moving mechanism, 51-gantry, 52-second lifting cylinder, 53-suction plate, 6-tapping mechanism, 7-air blowing and cleaning mechanism, 71-second lifting cylinder, 72-air inlet box, 73-purge pipe, 74-auxiliary air pipe, 8-thread detection mechanism, 81-support beam, 82-first slider, 83-industrial camera, 84-slide bar, 85-fill aperture, 86-second slider, 9-qualified product unloading mechanism, 91-third lifting cylinder, 92-fixed plate, 93-fixed pipe, 94-unloading blow pipe, 10-defective product unloading mechanism, 11-placing station, 12-unloading channel, 13-receiving trough, 14-support column, 15-crossbeam, 16-U-shaped slide, 17-translational cylinder. Implementation

[0020] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited in any way. Any changes or improvements made based on the teachings of the present invention belong to the protection scope of the present invention.

[0021] like Figures 1 to 5 As shown, the utility model includes a frame and a workbench 1, the workbench 1 is installed on the top of the frame, a vibration plate mechanism 2 is installed on one side of the workbench 1, a material receiving platform 3 is provided at the discharge end of the vibration plate mechanism 2, a turntable 4 is rotatably installed on the workbench 1 on one side of the material receiving platform 3, a driving mechanism connected to the turntable 4 is installed on the frame, the driving mechanism adopts the gear driving structure used in the prior art, mainly includes a motor, a driving gear, a driven gear and a rotating shaft, the rotating shaft is installed on the top of the turntable, the driving gear is installed on the output shaft of the motor, the driven gear is installed on the rotating shaft and meshes with the driving gear, the motor drives the driving gear to rotate, the driving gear drives the rotating shaft to rotate through the driven gear, and then drives the turntable 4 to rotate, A material transfer mechanism 5, a tapping mechanism 6, an air blowing and cleaning mechanism 7, a thread detection mechanism 8, a qualified product unloading mechanism 9 and a defective product unloading mechanism 10 are arranged in sequence on the workbench outside the turntable 4 along the rotation direction of the turntable 4. The tapping mechanism 6 adopts the structure used in the prior art. Six part placement stations 11 are evenly distributed on the circumference of the upper surface of the turntable 4. The six part placement stations 11 are used in conjunction with the material transfer mechanism 5, the tapping mechanism 6, the air blowing and cleaning mechanism 7, the thread detection mechanism 8, the qualified product unloading mechanism 9 and the defective product unloading mechanism 10, and a unloading channel 12 is arranged on the workbench 1 corresponding to the qualified product unloading mechanism 9 and the defective product unloading mechanism 10, and a material receiving trough 13 is arranged at the lower side of the unloading channel 12.

[0022] The working process of the device is as follows: when in use, the turntable 4 rotates under the action of the driving mechanism, the vibrating plate feeding mechanism 2 arranges and conveys the MIM parts to the feeding table 3, and the material transfer mechanism 5 transfers the MIM parts to the part placement station 11 corresponding to the turntable 4. The turntable 4 drives the MIM parts to rotate. When it turns to the position of the tapping mechanism 6, the tapping mechanism 6 taps the MIM parts. When it turns to the blowing and cleaning mechanism 7, the blowing and cleaning mechanism 7 blows the threads after tapping to remove the debris inside the threads. When it turns to the thread detection mechanism 8, the thread detection mechanism 8 can take photos of the threads of the screw holes for detection. According to the thread conditions of the photos, if the MIM thread detection is qualified, when the turntable 4 turns to the position of the qualified product detection mechanism 9, the qualified product detection mechanism 9 unloads the MIM parts into the unloading channel 12 and collects them in the receiving slot 13. When the thread detection of MIM fails, when the turntable 4 rotates to the position of the defective detection mechanism 10, the defective detection mechanism 10 unloads the MIM parts into the unloading channel 12 and collects them in the receiving groove 13; the device does not require manual intervention, and can realize automatic loading, automatic tapping, automatic blowing of thread debris, automatic thread detection and automatic unloading of MIM parts. The device not only effectively reduces labor intensity and greatly improves production efficiency, but also integrates tapping and thread detection into one device, reduces the process of repeated transfer of MIM parts, saves time for thread tapping and detection, improves the practicability of the device, and further improves production efficiency.

[0023] Furthermore, the material moving mechanism 5 includes a gantry frame 51, a translation driver and a first lifting cylinder 52. The first lifting cylinder 52 is a structure used in the prior art and can be directly purchased as a finished product according to the power and stroke size used. The gantry frame 51 is mounted on the workbench 1, the translation driver is mounted on the top of the gantry frame 51, the cylinder seat of the first lifting cylinder 52 is mounted on the translation driver, and a suction disc 53 is mounted on the end of the piston rod of the first lifting cylinder 52, and a suction joint is mounted on the suction disc 53, and the suction joint is connected to the external The suction plate 53 is connected to an air pump, and a plurality of suction nozzles are installed at the bottom of the suction plate 53. When the MIM parts on the receiving table need to be transferred to the part placement station 11, the translation driver controls the first lifting cylinder 52 to move. When it moves to the top of the receiving table 3, the first lifting cylinder 52 controls the suction plate 53 to move downward, the air pump inhales, and the suction nozzle sucks the MIM parts. When the translation driver drives the first lifting cylinder 52 to move to the part placement station 11, the air pump stops inhaling, and the suction nozzle releases the pressure, so that the MIM parts can be transferred to the part placement station 11.

[0024] Furthermore, the air blowing cleaning mechanism 7 includes a support column 14, a translation driver and a second lifting cylinder 71. The second lifting cylinder 71 is a structure used in the prior art and can be directly purchased as a finished product according to the power and stroke size used. The support column 14 is vertically mounted on the workbench, the translation driver is mounted on the top of the support column 14, the cylinder seat of the second lifting cylinder 71 is mounted on the translation driver, and an air inlet box 72 is mounted at the end of the piston rod of the second lifting cylinder 71, and a The air inlet connector is connected to the compressed air source. A purge pipe 73 is installed on the top of the air inlet box 72. Before use, the translation driver drives the second lifting cylinder 71 to move to the top of the part placement station 11. When the MIM part is transferred to the bottom of the air blowing and cleaning mechanism, the compressed air source enters the air inlet box 72. The second lifting cylinder 71 drives the air inlet box 72 to move downward. When it moves to the purge pipe 73 and contacts the MIM part, the compressed air is discharged through the purge pipe 73, so that the debris in the screw hole can be cleaned.

[0025] Furthermore, the qualified product unloading mechanism 9 includes a support column 14, a translation driver and a third lifting cylinder 91. The third lifting cylinder 91 is a structure used in the prior art. The finished product can be directly purchased according to the power and stroke size used. The support column 14 is vertically installed on the workbench 1, the translation driver is installed on the top of the support column 14, the cylinder seat of the third lifting cylinder 91 is installed on the translation driver, and a fixed plate 92 is installed at the end of the piston rod of the third lifting cylinder 91. A fixed tube 93 is installed at the bottom of the fixed plate 92. A quick connector is installed on the fixed tube 93. Connected to the compressed air source, a blanking blow pipe 94 is obliquely installed at the bottom of the fixed pipe 93, and the outlet of the blanking blow pipe 94 faces one side of the blanking channel 12. Before use, the translation driver drives the third lifting cylinder 91 to move above the corresponding part placement station. When the MIM part that has passed the thread inspection moves to the qualified product blanking mechanism 9, compressed air is introduced into the fixed pipe 93, and the third lifting cylinder 91 drives the fixed pipe 93 and the blanking blow pipe 94 to move downward. When they move to contact the MIM part, the compressed air blown out from the blanking blow pipe 94 can blow the MIM workpiece into the blanking channel 12.

[0026] Preferably, the translation driver includes a cross beam 15, a U-shaped slide 16 and a translation cylinder 17. The translation cylinder 17 is a structure used in the prior art and can be directly purchased as a finished product according to the power and stroke size used. Guide grooves are processed on both sides of the cross beam 15 along the length direction of the cross beam 15. The U-shaped slide 16 includes two side panels symmetrically arranged at intervals and a base installed at the bottom of the two side panels. Movable sliders matching the guide grooves are provided on the opposite side surfaces of the two side panels. The movable sliders are slidably installed in the guide grooves. The cylinder seat of the translation cylinder 17 is installed below the cross beam 15. The piston rod of the translation cylinder 17 is fixedly connected to the base. The translation cylinder 17 drives the U-shaped slide 16 to slide along the guide groove 17, which can improve the stability of the reciprocating movement of the U-shaped slide 16.

[0027] Furthermore, the thread detection mechanism includes a support beam 81, a first slider 82 and an industrial camera 83. The industrial camera 83 is a structure used in the prior art and can be directly purchased as a finished product on the market. A slide bar 84 is provided on one side of the support beam 81 along the vertical direction of the support beam 81. A plurality of positioning holes are provided on the slide bar 84 at intervals. The first slider 82 is slidably mounted on the slide bar 84, and the first slider 82 is connected and fixed to the slide bar 84 by fastening bolts. The industrial camera 83 is installed on the first slider 82 through a connecting plate, and the first slider 82 is slidably mounted on the slide bar 84, so as to facilitate the adjustment of the distance between the industrial camera 83 and the MIM parts.

[0028] Furthermore, the structure of the defective product unloading mechanism 10 is the same as that of the qualified product unloading mechanism 9, and the method of using it is the same as that of the qualified product unloading mechanism 9, which will not be elaborated again.

[0029] Preferably, in order to increase the purge range of the purge pipe 73, two auxiliary air pipes 74 are obliquely installed on the air inlet boxes 72 on both sides of the purge pipe 73, and the angle between the two auxiliary air pipes 74 and the purge outlet pipe 73 gradually increases. The purge pipe 73 and the two auxiliary air pipes 74 can be used together to increase the purge range, and the front of the threaded hole can be purged.

[0030] Furthermore, a fill aperture 85 is provided on the lower side of the industrial camera 83, and the fill aperture 85 is installed on the second slider 86 through a connecting rod. The second slider 86 is movably installed on the slide bar 84, and the second slider 86 is connected and fixed to the slide bar 84 by a fastening bolt. The fill aperture 85 can be used to enhance the intensity of the industrial camera 83 in taking pictures, make the discharged threaded holes clearer, and help to improve the accuracy of thread detection.

Claims

1. A machine for detecting tapping of internal threads of MIM parts, comprising a frame and a workbench (1), characterized in that: A vibrating plate mechanism (2) is installed on one side of the workbench (1), a material receiving platform (3) is arranged at the material discharging end of the vibrating plate mechanism (2), a turntable (4) is rotatably installed on the workbench (1) on one side of the material receiving platform (3), a driving mechanism connected to the turntable (4) is installed on the frame, a material moving mechanism (5), a tapping mechanism (6), an air blowing cleaning mechanism (7), a thread detection mechanism (8), a qualified product unloading mechanism (9) and a defective product unloading mechanism (10) are arranged in sequence on the workbench outside the turntable (4) along the rotation direction of the turntable (4), six parts placement stations (11) are evenly distributed on the circumference of the upper surface of the turntable (4), and a material unloading channel (12) is arranged on the workbench (1) corresponding to the qualified product unloading mechanism (9) and the defective product unloading mechanism (10), and a material receiving trough (13) is arranged below the side of the unloading channel (12).

2. The integrated machine for detecting tapping of internal threads of MIM parts according to claim 1, characterized in that: The material moving mechanism (5) comprises a portal frame (51), a translation drive and a first lifting cylinder (52); the portal frame (51) is mounted on a workbench (1); the translation drive is mounted on the top of the portal frame (51); a cylinder seat of the first lifting cylinder (52) is mounted on the translation drive; a suction disc (53) is mounted on the end of a piston rod of the first lifting cylinder (52); a suction joint is mounted on the suction disc (53); and a plurality of suction nozzles are mounted on the bottom of the suction disc (53).

3. The integrated machine for detecting tapping of internal threads of MIM parts according to claim 1, characterized in that: The air blowing and cleaning mechanism (7) comprises a support column (14), a translation drive and a second lifting cylinder (71), wherein the support column (14) is vertically mounted on a workbench, the translation drive is mounted on the top of the support column (14), the cylinder seat of the second lifting cylinder (71) is mounted on the translation drive, an air intake box (72) is mounted on the end of the piston rod of the second lifting cylinder (71), an air intake joint is mounted on the air intake box (72), and a blowing pipe (73) is mounted on the top of the air intake box (72).

4. The integrated machine for detecting tapping of internal threads of MIM parts according to claim 1, characterized in that: The qualified product unloading mechanism (9) comprises a support column (14), a translation driver and a third lifting cylinder (91), wherein the support column (14) is vertically mounted on the workbench (1), the translation driver is mounted on the top of the support column (14), the cylinder seat of the third lifting cylinder (91) is mounted on the translation driver, a fixing plate (92) is mounted on the end of the piston rod of the third lifting cylinder (91), a fixing pipe (93) is mounted on the bottom of the fixing plate (92), a quick-connect joint is mounted on the fixing pipe (93), a unloading blow pipe (94) is obliquely mounted on the bottom of the fixing pipe (93), and the outlet of the unloading blow pipe (94) faces one side of the unloading channel (12).

5. A tapping detection integrated machine for internal threads of MIM parts according to claim 2, 3 or 4, characterized in that: The translation driver comprises a crossbeam (15), a U-shaped slide seat (16) and a translation cylinder (17). Guide grooves are machined on both sides of the crossbeam (15) along the length direction of the crossbeam (15). The U-shaped slide seat (16) comprises two side plates symmetrically arranged at intervals and a base installed at the bottom of the two side plates. Movable slide blocks matching the guide grooves are arranged on the opposite side surfaces of the two side plates. The movable slide blocks are slidably installed in the guide grooves. The cylinder seat of the translation cylinder (17) is installed below the crossbeam (15). The piston rod of the translation cylinder (17) is fixedly connected to the base.

6. The integrated machine for detecting tapping of internal threads of MIM parts according to claim 1, characterized in that: The thread detection mechanism comprises a support beam (81), a first slider (82) and an industrial camera (83); a slider (84) is provided on one side of the support beam (81) along the vertical direction of the support beam (81); a plurality of positioning holes are provided at intervals on the slider (84); the first slider (82) is slidably mounted on the slider (84), and the first slider (82) is connected and fixed to the slider (84) by a fastening bolt; and the industrial camera (83) is mounted on the first slider (82) by a connecting plate.

7. The integrated machine for detecting tapping of internal threads of MIM parts according to claim 4, characterized in that: The structure of the defective product unloading mechanism (10) is the same as that of the qualified product unloading mechanism (9).

8. The integrated machine for detecting tapping of internal threads of MIM parts according to claim 3, characterized in that: Two auxiliary air pipes (74) are obliquely mounted on the air inlet boxes (72) on both sides of the purge pipe (73), and the angle between the two auxiliary air pipes (74) and the purge outlet pipe (73) gradually increases.

9. The integrated machine for detecting tapping of internal threads of MIM parts according to claim 6, characterized in that: A fill light ring (85) is arranged on the lower side of the industrial camera (83), and the fill light ring (85) is mounted on a second slider (86) via a connecting rod. The second slider (86) is movably mounted on the slide bar (84), and the second slider (86) is connected and fixed to the slide bar (84) via a fastening bolt.

Images