CN210449914U

CN210449914U - High automatic separation equipment of balanced armature formula receiver shell

Info

Publication number: CN210449914U
Application number: CN201921083308.1U
Authority: CN
Inventors: 仲崇玉; 严劲松
Original assignee: Nanjing Feilong Technology Co ltd
Current assignee: Nanjing Feilong Technology Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-05-05
Anticipated expiration: 2029-07-11

Abstract

The utility model provides a high automatic sorting device of a balanced armature type receiver shell, which comprises a vibration hopper, a measuring device and a central controller; the vibrating hopper comprises a hopper disc, a noodle taking assembly and an orientation assembly; a spiral ascending rail is arranged on the chassis of the hopper disc; the track comprises a first torsion part and a second torsion part, the first torsion part twists the track from a horizontal plane to an inclined plane, and the second torsion part twists the track from the inclined plane to the horizontal plane; the noodle taking assembly comprises a first photoelectric sensor and a first air blowing port; the orientation assembly comprises a second photoelectric sensor and a second air blowing port; a conveying belt of the measuring device is connected with the track and the reference panel, a material pushing cylinder is arranged on the reference panel, and an X-direction thimble and a Y-direction thimble can be simultaneously abutted against a workpiece; the height measuring gauge head is arranged on the reference panel, and the height measuring gauge head can press the workpiece downwards to measure the height of the workpiece. The utility model discloses can get face and orientation, measurement height and select separately the work piece to the work piece automatically.

Description

High automatic separation equipment of balanced armature formula receiver shell

Technical Field

The utility model belongs to the technical field of sorting facilities, concretely relates to high automatic separation equipment of balanced armature formula receiver shell.

Background

The balanced armature receiver is the core unit of medical hearing aid and moving-iron high-fidelity earphone, its shell material is nickel-iron alloy, its wall is very thin, only about 0.16 mm, the eccentric position of the workpiece surface is equipped with a small window, its tolerance of height is micron order. After the single side of the frame edge of the workpiece is ground, the height of the shell needs to be fully checked and sorted.

Due to the lack of automatic measuring equipment, the existing method can only carry out manual detection, and has the defects of low efficiency, large manual measurement error, high detection cost and the like, and is easy to make mistakes. In order to improve the measuring efficiency, a part of enterprises adopt the vibration hopper to automatically convey the workpiece to the measuring table, the pulse electromagnet is arranged at the bottom of the vibration hopper, so that the vibration hopper can vertically vibrate, and the inclined spring piece drives the vibration hopper to swing around the vertical axis of the vibration hopper, so that the workpiece spirally rises along the track. However, the face taking and orientation of the receiver shell cannot be performed, so that manual face taking and orientation are still needed during measurement, and the detection efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high automatic separation equipment of balanced armature formula receiver shell to solve the problem that current balanced armature formula receiver shell height detection efficiency is low, measuring error is big, measurement cost is high.

The utility model provides a following technical scheme:

the automatic height sorting equipment for the balanced armature type receiver shell comprises a vibration hopper, a measuring device and a central controller;

the vibrating hopper comprises a hopper disc, a noodle taking assembly and an orientation assembly; the bottom of the chassis is provided with a pulse electromagnet which can make the hopper disc vibrate in the vertical direction and a spring leaf which can make the vibration hopper swing around the vertical axis of the vibration hopper, the chassis is provided with a spirally-rising track, the track is tightly attached to the side wall of the hopper disc, and a workpiece in the hopper disc can be vibrated to spirally rise along the track; the front side of the workpiece is of a rectangular structure, a window is arranged in the center of the front side of the workpiece deviating from the length direction, and two symmetrical folded edges are arranged on the back side of the workpiece; the rail comprises a first torsion part and a second torsion part, the first torsion part twists the rail from a horizontal plane to an inclined plane, and the workpiece obliquely fits the rail after passing through the first torsion part; the second twisting part twists the track into a horizontal plane from the inclined plane; the noodle taking assembly is arranged between a first torsion part and a second torsion part on the hopper disc, the noodle taking assembly comprises a first photoelectric sensor and a first air blowing opening, a detection head of the first photoelectric sensor and the first air blowing opening face the track, the first air blowing opening is connected with a compressed air source through a first electromagnetic valve, the first photoelectric sensor is connected with the central controller, and the central controller is connected with the first electromagnetic valve; the orientation assembly is mounted at the front end of the second torsion part and comprises a second photoelectric sensor and a second air blowing port, a detection head of the second photoelectric sensor and the second air blowing port face the track, the second air blowing port is connected with a compressed air source through a second electromagnetic valve, the second photoelectric sensor is connected with the central controller, and the central controller is connected with the second electromagnetic valve;

the measuring device comprises a conveying belt, a reference panel, a material pushing cylinder, an X-direction thimble, a Y-direction thimble and a height measuring gauge outfit; the front end of the conveying belt is connected with the tail end of the track, the rear end of the conveying belt is connected with the reference panel, the material pushing cylinder is installed on the reference panel and can push the workpiece forwards, and the X-direction ejector pin and the Y-direction ejector pin can be respectively abutted against the X-direction side edge and the Y-direction side edge of the workpiece; the height measuring gauge head is mounted on the reference panel, and the height measuring gauge head can press the workpiece downwards to measure the height of the workpiece.

Preferably, the device also comprises a sorting device, wherein the sorting device comprises a cup bearing disc, material distributing cups, a material receiving rotating arm and a rotating motor, and the material distributing cups are uniformly arranged in cup holes in the cup bearing disc along the same circumference; the central controller is connected the rotating electrical machines, the rotating electrical machines install in the bottom central authorities of cup bearing dish, the output shaft fixed connection of rotating electrical machines connect the material rocking arm, the rotating electrical machines can drive connect the end of material rocking arm to rotate to arbitrary divide material cup top perhaps benchmark panel below, connect the end of material rocking arm to install the material clamping jaw that connects of gas accuse.

Preferably, the width of the rail is greater than the width of the workpiece and less than the length of the workpiece.

Preferably, a rechecking assembly is mounted on the track and positioned between the plane taking assembly and the orientation assembly; the rechecking assembly comprises a third photoelectric sensor and a third air blowing port, the third photoelectric sensor is arranged at the edge of the outer side of the track, the third air blowing port is opposite to the third photoelectric sensor, and the third air blowing port is connected with a compressed air source through a third electromagnetic valve; the third photoelectric sensor is connected with the central controller, and the central controller is connected with the third electromagnetic valve.

Preferably, an upward convex material baffle is arranged at the starting end of the first torsion part on the track, and the material baffle extends along the track in an arc line towards the direction of the surface taking assembly.

Preferably, a plane surface is arranged on the track at the position of the surface taking assembly, and the tail end of the striker plate is terminated in front of the plane surface; the workpiece can lie on the flat surface after being subjected to the air pressure of the first air blowing port.

Preferably, a horizontal rotating track section is arranged on the track at the rear section of the noodle taking assembly, an inward concave space avoiding position is arranged on the horizontal rotating track section, and the workpiece attached to the track in an inclined mode horizontally lies on the horizontal rotating track section when passing through the space avoiding position.

Preferably, a third torsion portion is arranged between the horizontal turning rail section and the second torsion portion of the rail, and the third torsion portion twists the rail from a horizontal plane to an inclined plane.

Preferably, the tail end of the conveying belt is provided with a stop block, the stop block is fixedly connected with a stop block air cylinder, the stop block air cylinder can drive the stop block to extend out to stop the workpiece on the conveying belt, and the central controller is connected with the stop block air cylinder.

The utility model has the advantages that: the special track structure of the hopper disc, the surface taking assembly and the orientation assembly are arranged on the hopper disc, so that the automatic surface selection and the automatic window opening direction selection of a workpiece to be detected can be realized, manual separation is not needed, and the working efficiency is improved; the measuring device of the equipment is provided with the material pushing cylinder, the X-direction thimble and the Y-direction thimble, so that a workpiece can be accurately and effectively positioned, and the measurement accuracy of the height measurement gauge outfit is improved. The device has the advantages of accurate measurement, good repeatability, high efficiency and low cost.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the structure of a workpiece according to the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the structure of a work piece having a windowed face remote from the track as it passes through the face extraction assembly;

FIG. 4 is a schematic view of the structure of a work piece with its windowed face abutting the track as it passes through the face fetching assembly;

fig. 5 is a schematic structural view of an orientation assembly of the present invention;

fig. 6 is a schematic top view of the measuring device of the present invention, in which the height measuring gauge head is omitted for the convenience of understanding;

fig. 7 is a schematic perspective view of the measuring device of the present invention;

labeled as: 1. a workpiece; 11. windowing; 12. folding edges; 2. a hopper tray; 21. a chassis; 22. a track; 221. a first torsion portion; 222. a second torsion portion; 223. a third torsion portion; 224. a flat pavement; 23. a striker plate; 24. a horizontal turning track section; 241. avoiding vacant positions; 3. a noodle taking component; 31. a first photosensor; 32. a first blowing port; 4. an orientation component; 41. a second photosensor; 42. a second air blowing port; 5. a rechecking component; 51. a third photosensor; 52. a third air blowing port; 6. a measuring device; 61. a conveyor belt; 611. a conveying track; 612. a baffle plate; 62. a reference panel; 63. a material pushing cylinder; 631. pushing the plate; an X-direction thimble; 65. Y-direction thimble; 66. a height measurement gauge head; 67. a stopper; 68. a block cylinder; 7. a sorting device; 71. a cup bearing tray; 72. a material separating cup; 73. a material receiving rotary arm; 74. connect the material clamping jaw.

Detailed Description

The automatic height sorting equipment for the balanced armature type telephone receiver shell comprises a vibration hopper, a measuring device 6, a sorting device 7 and a central controller. The workpiece 1 in this embodiment is a balanced armature receiver housing with a rectangular structure, as shown in fig. 1, a window 11 is provided on the front side of the workpiece deviating from the center of the length direction, and two symmetrical folded edges 12 are provided on the back side of the workpiece.

For ease of understanding of the present embodiment, not all workpieces in the hopper tray 2 are shown in fig. 2, but only workpieces at strategic locations. As shown in fig. 2, the vibrating hopper comprises a hopper disc 2, a fetching assembly 3 and an orientation assembly 4. The hopper disc 2 comprises a base disc 21 and a side wall, a pulse electromagnet capable of enabling the hopper disc to vibrate in the vertical direction and a spring piece capable of enabling the vibration hopper to swing around the vertical axis are installed at the bottom of the base disc 21, and the pulse electromagnet is connected with an external power supply. The hopper disc 2 is provided with a spirally-rising rail 22, the rail 22 is tightly attached to the side wall of the hopper disc 2, the pulse electromagnet and the spring piece enable the hopper disc 2 to vibrate, and further enable workpieces in the hopper disc 2 to be vibrated and spirally rise along the rail 22; when the chassis 21 vibrates, the workpiece 1 on the chassis 21 can move spirally from inside to outside along the track 22, the width of the track 22 is larger than the width of the workpiece 1 and smaller than the length of the workpiece 1, so that the workpiece 1 sequentially passes through and advances along the track in the broadside direction, and the workpiece in the long-side direction automatically falls outside the track and enters the chassis 21 again, thereby realizing the primary orientation of the workpiece in the length and width directions. The rail 22 comprises a first torsion part 221, a second torsion part 222 and a third torsion part 223, the first torsion part 221 twists the rail 22 from a horizontal plane to an inclined plane close to vertical, and the workpiece 1 passes through the first torsion part 221 and then obliquely adheres to the rail 22; the starting end of the first twisting part 221 on the rail 22 is provided with a baffle plate 23 protruding upwards, the baffle plate 23 extends along the rail 22 in an arc manner towards the surface taking assembly 3, and the baffle plate 23 plays a role in guiding the movement of the workpiece, so that the workpiece gradually enters the first twisting part 221 along the baffle plate 23.

The second twisting part 221 twists the rail 22 from the inclined surface to a horizontal surface, and then moves the workpiece 1 horizontally onto the measuring device 6. As shown in fig. 2 to 4, the noodle taking assembly 3 is installed between the first torsion part 221 and the second torsion part 222 on the hopper plate 2, the noodle taking assembly 3 includes a first photoelectric sensor 31 and a first air blowing opening 32, a detection head of the first photoelectric sensor 31 and the first air blowing opening 32 both face the rail 22, the first air blowing opening 32 is connected with a compressed air source through a first electromagnetic valve, the first photoelectric sensor 31 is connected with a central controller, and the model of the first photoelectric sensor 31 is: FX-551-C2-HT. Because the distances from the front surface and the back surface of the workpiece to the first photoelectric sensor 31 are different, the light intensity values reflected by the front surface and the back surface of the workpiece are different, the first photoelectric sensor 31 can detect which surface of the workpiece 1 abuts against the rail 22 through the light intensity reflection value of the workpiece 1, and sends the detection result to a central controller, the central controller is connected with a first electromagnetic valve, the central controller controls the first electromagnetic valve to be opened or closed according to the detection result of the first photoelectric sensor 31, when the window opening surface of the workpiece 1 abuts against the rail, the first electromagnetic valve is opened, the first air blowing port 32 blows over the workpiece, otherwise, the first electromagnetic valve does not act. A flat surface 224 is arranged on the track 22 at the position of the face taking component 3, and the tail end of the striker plate 23 is terminated in front of the flat surface 224; the workpiece with its windowed face abutting the rail is placed on the decking 224 with the windowed face facing up after being subjected to the air pressure from the first air port 32. The horizontal rotating track section 24 is arranged at the rear section of the noodle taking assembly 3 on the track, the horizontal rotating track section 24 is provided with an inward concave clearance 241, when a workpiece with a windowing surface far away from the track is continuously moved forward to the horizontal rotating track section 24, the workpiece is originally attached to the track in an inclined mode, the clearance 241 is arranged to enable the workpiece to lose inclined supporting force, then the workpiece automatically horizontally lies on the horizontal rotating track section 24 under the action of self gravity, and at the moment, the windowing surface of the workpiece is also upward. Therefore, when the workpiece passes through the horizontal rotating track section 24, the windowing surface is far away from the track and the workpiece close to the track is horizontally laid on the horizontal rotating track section 24 with the windowing surface facing upwards, and the workpiece is taken out.

As shown in fig. 2, the rail 22 is provided with a third torsion portion 223 between the horizontal rail segment 24 and the second torsion portion 222, and the third torsion portion 223 twists the rail 22 from the horizontal plane to the inclined plane again. When the workpiece passes through the third torsion portion 223, the workpiece is again obliquely abutted on the rail 22, so that the subsequent orientation detection of the workpiece is facilitated.

As shown in fig. 5, the orientation assembly 4 is mounted at the front end of the second torsion part 222, the orientation assembly 4 includes a second photoelectric sensor 41 and a second air blowing opening 42, a detecting head of the second photoelectric sensor 41 and the second air blowing opening 42 both face the rail, the second air blowing opening 42 is connected to a compressed air source through a second electromagnetic valve, the second photoelectric sensor 41 is connected to the central controller, and the model of the second photoelectric sensor 41 is: FX-551-C2-HT, which is the detection of the orientation of a workpiece by the following method: the central controller is connected with the second electromagnetic valve, a timer and a comparator are arranged in the central controller, the timer is connected with the comparator, a set time length is preset in the comparator, the set time length is a standard time difference when the front side (namely, the side far away from the window) of the workpiece and the front end of the window respectively pass through the second photoelectric sensor, when the front side of the workpiece passes through the second photoelectric sensor, the second photoelectric sensor detects the workpiece and sends a level conversion signal to the central controller, the timer is activated to start timing, when the front end of the window reaches the second photoelectric sensor, the second photoelectric sensor sends the level conversion signal to the central controller again due to weak reflected light of the window, and the timer stops timing; the timer sends the timing duration to the input of comparator, and the comparator compares timing duration and length of setting for time to judge whether the portion of windowing is located the rear side when the work piece passes through, promptly: when the windowing part is positioned at the rear side, the timing time is equal to the set time, the second electromagnetic valve does not act, and the workpiece smoothly passes through the second air blowing port 42; when the windowing part is positioned on the front side, the timing duration is less than the set duration, the central controller opens the second electromagnetic valve, blows air to the workpiece, and blows the workpiece down onto the chassis 21, so that the orientation of the workpiece is recognized.

As shown in fig. 2, the track 22 is also provided with a rechecking assembly 5, and the rechecking assembly 5 is positioned between the face taking assembly 3 and the orientation assembly 4; the rechecking assembly 5 comprises a third photoelectric sensor 51 and a third air blowing port 52, the third photoelectric sensor 51 is arranged on the side wall of the hopper disc 2 and close to the outer edge of the track, the third air blowing port 52 is over against the third photoelectric sensor 51, and the third air blowing port 52 is connected with a compressed air source through a third electromagnetic valve; the third photoelectric sensor 51 is connected to a central controller, which is connected to a third solenoid valve. When the workpieces are stacked and dislocated through the rechecking assembly 5 and slide out of the rail, the third photoelectric sensor 51 detects the dislocated workpieces, sends detection signals to the central controller, and the central controller controls the third electromagnetic valve to be opened, and blows the workpieces down into the chassis 21 through the third air blowing port 52.

As shown in fig. 2, 6, and 7, the measuring device 6 includes a conveyor belt 61, a reference panel 62, a pusher cylinder 63, an X-direction ejector pin 64, a Y-direction ejector pin 65, and a height measuring gauge head 66. The front end of the conveyor belt 61 is connected to the rear end of the rail 22, and the workpiece 1 can be moved from the rear end of the rail 22 onto the conveyor belt 61. The conveying track 611 of the conveying belt 61 is provided with baffles 612 on both sides thereof to guide and limit the moving workpiece. The end of the conveying belt 61 is provided with a stop 67, the baffle 612 is provided with a sliding groove (not shown) for the stop 67 to slide back and forth, the stop 67 is fixedly connected with a stop cylinder 68, the stop cylinder 68 can drive the stop 67 to extend forwards to temporarily stop the workpiece on the conveying rail 611, and the central controller is connected with the stop cylinder 68. When the height measuring gauge head 66 is detecting the previous workpiece, the stop block cylinder 68 extends out of the stop block 67 to temporarily stop the workpiece on the conveying rail 611 until the detection of the previous workpiece is completed, and the stop block cylinder 68 retracts backwards and then extends forwards to release the workpiece.

As shown in fig. 6, the rear end of the conveyor belt 61 is connected to a reference panel 62, and the reference panel 62 is a strictly horizontal plate to ensure the measurement accuracy of the height measurement gauge head 66. The material pushing cylinder 68 is arranged on the reference panel 66, a push plate 631 is arranged on a piston rod of the material pushing cylinder 68, the push plate 631 is provided with two right-angle limiting edges, the two adjacent edges of the workpiece can be limited by the limiting edges, and the material pushing cylinder 63 can push the workpiece forwards. The X-direction thimble 64 and the Y-direction thimble 65 can be driven by the cylinder respectively to abut against the X-direction side edge and the Y-direction side edge of the workpiece, so that the push plate 631, the X-direction thimble 64 and the Y-direction thimble 65 can position the four sides of the workpiece, and the workpiece is ensured not to shake in the measuring process. The X-direction thimble 64 and the Y-direction thimble 65 each include a spring and a thimble body, the springs are fixedly connected to the thimble bodies, and the springs make the thimble bodies flexibly contact with the side edges of the workpiece, so as to prevent the thimble bodies from deforming due to large pressure applied to the workpiece. The height gauge head 66 is mounted on the datum plate 62, and the height gauge head 66 can press down on the workpiece to measure the height of the workpiece, and the height gauge head 66 is a conventional instrument and therefore will not be described in detail. The height measurement gauge head 66 is connected to the central controller and transmits the height measurements to the central controller in real time. After the measurement is completed, the pushing cylinder 63 continues to push the workpiece forward, so that the workpiece slides out of the reference panel 62, and then the pushing cylinder 63 resets.

As shown in fig. 2, the sorting device 7 includes a cup receiving tray 71, a plurality of distributing cups 72, a material receiving rotating arm 73 and a rotating motor, wherein the distributing cups 72 are uniformly placed in cup holes on the cup receiving tray 71 along the same circumference, each distributing cup 72 corresponds to a different height range value of a workpiece, and each height range value is input and stored in a central controller through a touch screen. The rotary motor is arranged in the center of the bottom of the cup bearing disc 71, an output shaft of the rotary motor is fixedly connected with the material receiving rotary arm 73, the central controller is connected with the rotary motor, a height comparison arithmetic unit is arranged in the central controller, the height comparison arithmetic unit calculates and selects the material separating cup matched with the workpiece according to the height measurement value of the workpiece, and then the output of the rotary motor is controlled, so that the rotary motor drives the tail end of the material receiving rotary arm 73 to rotate to the position above the material separating cup 72 matched with the height measurement value. The tail end of the material receiving rotary arm 73 is provided with a material receiving clamping jaw 74, the material receiving clamping jaw 74 can be controlled by an air cylinder to open or close, the material receiving clamping jaw is also known in the prior art, the material receiving clamping jaw 74 is in a closed state initially and is positioned below the front side of the reference panel 62 to receive a workpiece sliding from the reference panel 62, when the material receiving rotary arm 73 rotates to the material distributing cup 72 matched with the height of the workpiece, the central controller controls the material receiving clamping jaw 74 to open to enable the workpiece to fall into the material distributing cup 72 below, and then the material receiving clamping jaw 74 and the material receiving rotary arm 73 are reset in sequence.

The sorting method of the automatic high sorting equipment for the balanced armature type receiver shell comprises the following steps of:

(1) a plurality of workpieces 1 are loaded in a hopper disc 2, a power supply of a vibration hopper is connected to vibrate the hopper disc 2, and the workpieces move spirally along a track 22;

(2) under the guiding action of the material baffle plate 23, the workpiece enters the first torsion part 221 and then obliquely adheres to the track until the workpiece moves to the surface taking assembly 3;

(3) the surface taking assembly 3 detects whether the windowing surface of the workpiece is far away from the rail, if the windowing surface is far away from the rail, the first air blowing port does not act, and the workpiece moves to the horizontal rotating rail section 24 and then automatically falls on the horizontal rotating rail section under the action of gravity; if the windowing surface is tightly attached to the track, the first air blowing port 32 blows air to the workpiece, so that the workpiece is turned over and then horizontally laid on the flat pavement 224; after passing through the surface taking assembly 3, the windowing surfaces of the workpieces are all upward, so that the surface taking of the workpieces is realized;

(4) the workpiece passes through the third torsion part 223 and is twisted again to be obliquely attached to the rail from the original state of being laid on the rail, so that the subsequent orientation detection is facilitated;

(5) the workpieces move to the orientation component 4 along the track, and in the process, the re-inspection component 5 re-inspects the arrangement of the workpieces on the track, so that the workpieces move to the orientation component 4 smoothly in sequence;

(6) the orientation component 4 detects whether the window of the workpiece is positioned at the rear side, if the window is positioned at the rear side, the second air blowing port 42 does not act, and the workpiece is flatly paved on the rail through the second torsion part 222 and enters the conveying belt 61; if the window is positioned at the front side, the second air blowing port 42 blows air to the workpiece, and the workpiece is blown down to the chassis 21, so that the orientation of the workpiece is realized;

(7) a workpiece enters a reference panel 62 of the measuring device, a material pushing cylinder 63 pushes the workpiece forwards, an X-direction thimble 64 and a Y-direction thimble 65 simultaneously abut against two adjacent side edges of the workpiece under the action of thrust of the self-contained cylinders, a height measuring gauge head 66 measures the height of the workpiece, and the measured value is sent to a central controller;

(8) the material pushing cylinder 63 pushes the measured workpiece away from the reference panel 62, and the workpiece falls onto the material receiving rotary arm 73;

(9) the central controller controls the material receiving rotary arm 73 to rotate according to the height measurement value, and the workpieces are placed into the corresponding material distributing cups 72.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The equipment for automatically sorting the heights of the shells of the balanced armature type telephone receivers is characterized by comprising a vibration hopper, a measuring device and a central controller;

the vibrating hopper comprises a hopper disc, a noodle taking assembly and an orientation assembly; the hopper disc comprises a base disc and a side wall, a pulse electromagnet and a spring piece are installed at the bottom of the base disc, a spirally-rising track is arranged on the hopper disc, the track is tightly attached to the side wall of the hopper disc, and a workpiece in the hopper disc can be vibrated to spirally rise along the track; the front side of the workpiece is of a rectangular structure, a window is arranged in the center of the front side of the workpiece deviating from the length direction, and two symmetrical folded edges are arranged on the back side of the workpiece; the track comprises a first torsion part and a second torsion part, the first torsion part twists the track from a horizontal plane to an inclined plane, and the second torsion part twists the track from the inclined plane to the horizontal plane; the noodle taking assembly is arranged between a first torsion part and a second torsion part on the hopper disc, the noodle taking assembly comprises a first photoelectric sensor and a first air blowing opening, a detection head of the first photoelectric sensor and the first air blowing opening face the track, the first air blowing opening is connected with a compressed air source through a first electromagnetic valve, the first photoelectric sensor is connected with the central controller, and the central controller is connected with the first electromagnetic valve; the orientation assembly is mounted at the front end of the second torsion part and comprises a second photoelectric sensor and a second air blowing port, a detection head of the second photoelectric sensor and the second air blowing port face the track, the second air blowing port is connected with a compressed air source through a second electromagnetic valve, the second photoelectric sensor is connected with the central controller, and the central controller is connected with the second electromagnetic valve;

2. The automatic height sorting device for the housings of the balanced armature type telephone receivers according to claim 1, further comprising a sorting device, wherein the sorting device comprises a cup bearing disc, a material separating cup, a material receiving rotating arm and a rotating motor, and a plurality of material separating cups are uniformly arranged in cup holes on the cup bearing disc along the same circumference; the central controller electricity is connected the rotating electrical machines, the rotating electrical machines install in the bottom central authorities of cup bearing dish, the output shaft fixed connection of rotating electrical machines connect the material rocking arm, the rotating electrical machines can drive connect the end of material rocking arm to rotate arbitrary divide material cup top perhaps benchmark panel below, connect the end of material rocking arm to install the material clamping jaw that connects of gas accuse.

3. The balanced armature receiver housing height automatic sorting apparatus of claim 2, wherein the width of the rail is greater than the width of the workpiece and less than the length of the workpiece.

4. The balanced armature receiver housing height automatic sorting apparatus of claim 3 wherein a review assembly is mounted on the track, the review assembly being located between the face fetching assembly and the orientation assembly; the rechecking assembly comprises a third photoelectric sensor and a third air blowing port, the third photoelectric sensor is arranged at the edge of the outer side of the track, the third air blowing port is opposite to the third photoelectric sensor, and the third air blowing port is connected with a compressed air source through a third electromagnetic valve; the third photoelectric sensor is connected with the central controller, and the central controller is connected with the third electromagnetic valve.

5. The automatic height sorting device for balanced armature receiver housings of claim 4 wherein the rail has a striker plate protruding upward from the beginning of the first torsion portion, the striker plate extending along the rail in an arc toward the face-taking assembly.

6. The apparatus of claim 5 wherein the rail is provided with a flat surface at the face pick-up assembly and the end of the striker plate terminates forward of the flat surface; the workpiece can lie on the flat surface after being subjected to the air pressure of the first air blowing port.

7. The apparatus of claim 6, wherein a horizontal rail section is provided on the rail at the rear section of the face removing assembly, the horizontal rail section is provided with an inward-recessed clearance, and a workpiece attached to the rail in an inclined manner is horizontally laid on the horizontal rail section when passing through the clearance.

8. The apparatus of claim 7, wherein the rail is provided with a third torsion portion between the horizontal turning rail section and the second torsion portion, and the third torsion portion twists the rail from a horizontal plane to an inclined plane.

9. The automatic height sorting device for the housings of the balanced armature type telephone receiver of claim 7, wherein a stopper is installed at the end of the conveyor belt, the stopper is fixedly connected with a stopper cylinder, the stopper cylinder can drive the stopper to extend out to block a workpiece on the conveyor belt, and the central controller is connected with the stopper cylinder.