Positioning device for blue-ear earphone shell before encapsulation and positioning method of blue-ear earphone shell

Abstract

The invention discloses a positioning device for a blue-ear earphone shell before encapsulation and a positioning method of the blue-ear earphone shell. The positioning device for the blue-ear earphone shell before encapsulation comprises a rack, a placing block, a first pressing mechanism, an ejection mechanism and a second pressing mechanism, wherein the second pressing mechanism is used for obliquely pressing the other part of the shell of a workpiece to be encapsulated on the placing block so as to enable the other buckling position of the workpiece to be encapsulated to be matched with the placing block; the rack is provided with a horizontal workbench, and the containing block is located on the upper end face of the horizontal workbench. The main control unit is respectively connected with the first pressing mechanism, the ejection mechanism and the second pressing mechanism; automatic positioning before rubber coating is achieved, the intelligent degree is high, the labor cost is reduced, the machining efficiency is high, the to-be-machined part is better attached to the corresponding buckling position of the containing block, and the stability and reliability of the to-be-machined part in the rubber coating process are guaranteed.

Description

Technical Field

[0001] The invention relates to the field of rubber coating of Bluetooth headset shells, and in particular to a positioning device and a positioning method thereof before rubber coating of a Bluetooth headset shell. Background Art

[0002] At present, headphones, as an electroacoustic device, have been closely linked to people's daily life and work. They can be found at home, outdoors, at important conferences, hearing tests and other occasions. Headphones have become a symbol of people's portable audio.

[0003] Bluetooth headsets are hands-free headsets that apply Bluetooth technology to them, allowing users to avoid the entanglement of annoying wires and easily communicate in a variety of ways, allowing them to operate a computer while maintaining a conversation.

[0004] In addition, the most widely used application of Bluetooth technology in daily life is in mobile phone communication devices that support Bluetooth, such as mobile phone Bluetooth headsets. Bluetooth makes driving safer.

[0005] The shell of the existing Bluetooth headset needs to be manually placed in the positioning groove before injection molding and then accurately matched with its buckle groove, so that the shell of the Bluetooth headset fits the inner wall of the positioning groove. However, the labor cost is high and the efficiency is low.

[0006] Therefore, it is necessary to develop a new technical solution to solve the above problems. Summary of the invention

[0007] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a positioning device and a positioning method for a blue earphone shell before rubber encapsulation, which realizes automatic positioning before rubber encapsulation, has a high degree of intelligence, reduces labor costs, and has high processing efficiency. Moreover, it makes the workpiece to be processed more closely fit the corresponding buckle position of the placement block, thereby ensuring the stability and reliability of the workpiece to be processed during the rubber encapsulation process; in particular, two workpieces to be rubber encapsulated can be positioned at the same time, further improving work efficiency. The two placement blocks share the same first clamping mechanism, thereby reducing the number of first clamping mechanisms set, reducing hardware configuration and maintenance costs, and is conducive to realizing the miniaturization of the spatial design of the positioning device, and can also reduce the energy loss when the two first clamping mechanisms work at the same time.

[0008] To achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A positioning device for a blue earphone shell before rubber coating, comprising a frame, a placement block for placing a workpiece to be coated with rubber, a first pressing mechanism for vertically pressing a part of the shell of the workpiece to be coated with rubber on the placement block, an ejection mechanism for ejecting upward a part of the shell of the workpiece to be coated with rubber on the placement block that is not pressed so that its buckle position matches the placement block, and a second pressing mechanism for obliquely pressing another part of the shell of the workpiece to be coated with rubber on the placement block so that its other buckle position matches the placement block;

[0010] The frame has a horizontal workbench, and two placement blocks are provided and both are located on the upper end surface of the horizontal workbench; the two placement blocks share a first clamping mechanism;

[0011] The ejection mechanism and the second clamping mechanism are both provided with two, and each placement block is provided with one ejection mechanism and one second clamping mechanism;

[0012] It also includes a main control unit, which is respectively connected to the first clamping mechanism, the ejecting mechanism and the second clamping mechanism.

[0013] As a preferred solution, the first pressing mechanism includes a first pressing block and a first driving unit for driving the first pressing block to approach or move away from the placement block, and the first driving unit is connected to the main control unit.

[0014] As a preferred solution, the frame includes a bottom plate, a top plate, and four supporting columns located between the bottom plate and the top plate;

[0015] The horizontal workbench is arranged on the upper end surface of the bottom plate, and the four corners of the bottom plate are connected to the four corners of the top plate through a support column respectively;

[0016] The first driving unit includes a bearing plate and a first driving cylinder;

[0017] The four corners of the bearing plate are respectively passed through a support column through four bearings to reciprocate up and down along the support column, and the first pressing block is arranged on the lower end surface of the bearing plate;

[0018] The first driving cylinder drives the connected carrier plate to drive the carrier plate to rise and fall, and then drives the first pressing block to approach or move away from the placement block. The main control unit is connected to the first driving cylinder.

[0019] As a preferred solution, the placement block has a placement cavity and a clearance groove extending along the upper and lower end surfaces thereof, the clearance groove is connected to the placement cavity, and the inner wall of the placement cavity is formed with a first buckle position and a second buckle position for matching with the placement block;

[0020] The ejection mechanism includes an ejection block and a second driving cylinder for driving the ejection block to rise and fall relative to the placement block. The ejection block is located in the clearance groove. The main control unit is connected to the second driving cylinder. The second driving cylinder drives the ejection block to drive the ejection block to extend into or leave the placement cavity.

[0021] As a preferred solution, the second pressing mechanism includes a second pressing block and a third driving unit for driving the second pressing block to approach or move away from the placement block, and the third driving unit is connected to the main control unit.

[0022] As a preferred solution, a positioning seat is provided on the horizontal workbench, and a mounting groove is penetrated through the positioning seat along the vertical direction thereof, and the placement block is installed in the mounting groove and extends out of the positioning seat;

[0023] The second clamping mechanism further includes a blocking block, the blocking block is connected to the positioning seat, the blocking block has an avoidance hole, the second pressing block has a limiting step portion, and the third driving unit drives the second pressing block to extend into the avoidance hole or pass through the avoidance hole to extend out of the blocking block;

[0024] When the second pressing block passes through the avoidance hole and extends out of the blocking block, the limiting step portion abuts against the blocking block.

[0025] As a preferred solution, a first positioning groove is provided on the outer peripheral side of the positioning seat, and a mounting hole is provided on the inner side wall of the first positioning groove;

[0026] The upper end surface of the horizontal workbench is concavely provided with a second positioning groove, and the second positioning groove is connected to the first positioning groove;

[0027] The blocking block has a positioning protrusion, which is adapted in the first positioning groove. Meanwhile, the lower end of the blocking block is adapted in the second positioning groove. The blocking block is adapted in the mounting hole of the positioning seat through a locking screw.

[0028] As a preferred solution, the second driving unit includes a fixing frame and a third driving cylinder arranged on the fixing frame, the fixing frame is connected to the horizontal workbench, the fixing frame has an inclined portion, and the second driving cylinder is arranged on the inclined portion.

[0029] As a preferred solution, the positioning seat is detachably connected to the horizontal workbench.

[0030] A method for positioning a blue-ear earphone shell before being rubber-coated, based on the positioning device before the blue-ear earphone shell is rubber-coated, comprises the following steps:

[0031] Step 1, pre-place the workpiece to be encapsulated on the placement block;

[0032] Step 2, controlling the first pressing mechanism to press downward a portion of the shell of the workpiece to be encapsulated;

[0033] Step 3, controlling the ejection mechanism to eject upward the unpressed portion of the shell of the workpiece to be encapsulated so that its buckling position is compatible with the placement block;

[0034] Step 4, control the second pressing mechanism to obliquely press the other part of the shell of the workpiece to be encapsulated so that its buckling position is compatible with the placement block, that is, the fitting and positioning of the workpiece to be encapsulated and the placement block are completed.

[0035] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly realizes automatic positioning before encapsulation through the cooperation of the first clamping mechanism, the ejection mechanism and the second clamping mechanism. It has a high degree of intelligence, reduces labor costs, and has high processing efficiency. Moreover, it makes the workpiece to be processed more closely fit the corresponding buckle position of the placement block, ensuring the stability and reliability of the workpiece to be processed during the encapsulation process; in particular, two workpieces to be encapsulated can be positioned at the same time, further improving work efficiency. The two placement blocks share the same first clamping mechanism, thereby reducing the number of first clamping mechanisms set up, reducing hardware configuration and maintenance costs, and is conducive to realizing the miniaturization of the spatial design of the positioning device, and can also reduce the energy loss when the two first clamping mechanisms work at the same time.

[0036] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the three-dimensional assembly structure of an embodiment of the present invention.

[0038] Figure 2 It is a schematic diagram of the three-dimensional assembly structure from another angle of an embodiment of the present invention.

[0039] Figure 3 It is a partial structural schematic diagram of an embodiment of the present invention (mainly showing the second clamping mechanism, the horizontal workbench, the ejection mechanism, the reinforcing plate assembly, the placement block, the workpiece to be encapsulated with glue, and the positioning seat).

[0040] Figure 4 yes Figure 3 Schematic diagram of the exploded structure (the workpiece to be encapsulated is not shown).

[0041] Figure 5 yes Figure 3 Schematic diagram of the structural decomposition from another angle.

[0042] Figure 6 It is a schematic diagram of the frame structure of an embodiment of the present invention (also showing the placement block, the first drive unit, and the positioning seat).

[0043] Figure 7 It is a schematic diagram of the placement block structure of an embodiment of the present invention.

[0044] Figure 8 It is a schematic structural diagram of a reinforcement plate assembly according to an embodiment of the present invention.

[0045] Fig. 9 It is a schematic structural diagram of the second clamping mechanism of an embodiment of the present invention.

[0046] Fig.10 It is a schematic diagram of the ejection mechanism structure of an embodiment of the present invention.

[0047] Fig.11 It is a schematic diagram of the base structure of an embodiment of the present invention.

[0048] Description of the accompanying drawings:

[0049] 10. Rack

[0050] 101. Horizontal workbench 102. Second positioning groove

[0051] 11. Bottom plate 12. Top plate

[0052] 13. Support column

[0053] 14. Protective cover

[0054] 141. first accommodating cavity 142. front side plate

[0055] 143, rear side plate 144, cover plate

[0056] 145, left side panel 146, right side panel

[0057] 147. First avoidance hole 148. Visible window

[0058] 149. Safety grating

[0059] 15. Base

[0060] 151. Second accommodating cavity 152. Handle

[0061] 153. Power button 154. Emergency stop button

[0062] 155, start button 16, positioning seat

[0063] 161, mounting groove 162, first positioning groove

[0064] 163, mounting hole 164, guide groove

[0065] 20. The first clamping mechanism

[0066] 21. First lower pressing block 22. First driving unit

[0067] 221, bearing plate 222, first driving cylinder

[0068] 23. First aluminum plate 24. Anti-rust plate

[0069] 25. Second aluminum plate

[0070] 251, connector 252, guide column

[0071] 30. Ejector mechanism

[0072] 31. Ejector block 32. Second drive cylinder

[0073] 40. Second clamping mechanism

[0074] 41. Second pressing block 411. Position limiting step

[0075] 42. Third drive unit

[0076] 421, fixed frame 422, third driving cylinder

[0077] 423. Inclined part

[0078] 43. Block

[0079] 431, positioning protrusion 432, second avoidance hole

[0080] 50. Main control unit

[0081] 60. Workpiece to be encapsulated

[0082] 70. Place blocks

[0083] 71. Placement cavity 72. Make way slot

[0084] 711. First buckle position 712. Second buckle position. DETAILED DESCRIPTION

[0085] Please refer to Figures 1 to 11 As shown, it shows the specific structure of an embodiment of the present invention, a positioning device for a blue earphone shell before rubber coating, including a frame 10, a main control unit 50, a placement block 70 for placing a workpiece 60 to be rubber coated, a first clamping mechanism 20 for vertically pressing a part of the shell of the workpiece 60 to be rubber coated located on the placement block 70, an ejection mechanism 30 for ejecting an unpressed part of a part of the shell of the workpiece 60 to be rubber coated located on the placement block 70 so that its buckle position is compatible with the placement block 70, and a second clamping mechanism 40 for obliquely pressing another part of the shell of the workpiece 60 to be rubber coated located on the placement block 70 so that its other buckle position is compatible with the placement block 70.

[0086] The main control unit 50 is connected to the first pressing mechanism 20 , the ejecting mechanism 30 , and the second pressing mechanism 40 , respectively.

[0087] The frame 10 has a horizontal workbench 101, and two placement blocks 70 are provided and both are located on the upper end surface of the horizontal workbench 101; the two placement blocks 70 share a first clamping mechanism 20;

[0088] The ejection mechanism 30 and the second clamping mechanism 40 are both provided with two, and each placement block 70 is equipped with one ejection mechanism 30 and one second clamping mechanism 40 .

[0089] The upper end surface of the horizontal workbench 101 is concavely provided with a second positioning groove 102 .

[0090] The frame 10 includes a bottom plate 11, a top plate 12, a protective cover 14, a base 15, and four support columns 13 located between the bottom plate 11 and the top plate 12;

[0091] The horizontal workbench 101 is arranged on the upper end surface of the bottom plate 11, and the four corners of the bottom plate 11 are connected to the four corners of the top plate 12 through a support column 13 respectively;

[0092] The protective cover 14 is disposed on the periphery of the first clamping mechanism 20, the top plate 12, the four support columns 13, the placement block 70, the second clamping mechanism 40 and the positioning seat 16 described below. The protective cover 14 has a first accommodating cavity 141 with a front end opening, and the first clamping mechanism 20, the top plate 12, the four support columns 13, the placement block 70, the second clamping mechanism 40 and the positioning seat 16 described below are all located in the first accommodating cavity 141.

[0093] The protection cover 14 includes a front side plate 142 , a rear side plate 143 , a cover plate 144 , a left side plate 145 and a right side plate 146 .

[0094] The front side plate 142 is respectively connected to the cover plate 144, the left side plate 145 and the right side plate 146, the left side plate 145 is respectively connected to the cover plate 144 and the rear side plate 143, the right side plate 146 is respectively connected to the cover plate 144 and the rear side plate 143, the rear side plate 143 is connected to the cover plate 144, and the lower ends of the left side plate 145, the rear side plate 143 and the right side plate 146 are connected to the bottom plate 11. The cover plate 144 is provided with a first avoidance hole 147 connected to the first accommodating cavity 141.

[0095] The left side plate 145 and / or the right side plate 146 are provided with a visual window 148, so that the working process can be visually viewed in real time. A safety grating 149 is provided on the inner side of each of the left side plate 145 and the right side plate 146, and the safety grating 149 is connected to the main control unit 50.

[0096] The base 15 has a second accommodating cavity 151 with an upper opening, and the base 15 is disposed below the bottom plate 11, and the bottom plate 11 covers the upper opening of the second accommodating cavity 151. The main control unit 50 is located in the second accommodating cavity 151. Handles 152 are disposed on the left and right side walls of the base 15, which facilitates carrying the positioning device of this embodiment to other places for use or storage.

[0097] The front surface of the base 15 is provided with a power button 153, an emergency stop button 154 and a start button 155. The power button 153, the emergency stop button 154 and the start button 155 are connected to the main control unit 50 respectively.

[0098] The horizontal workbench 101 is provided with a positioning seat 16, and the positioning seat 16 is detachably connected to the horizontal workbench 101. Preferably, the bottom of the positioning seat 16 is detachably connected to the horizontal workbench 101 by screws.

[0099] The positioning seat 16 has a mounting groove 161 extending through it in the vertical direction. A first positioning groove 162 is provided on the outer peripheral side of the positioning seat 16, and the second positioning groove 102 is connected to the first positioning groove 162. A mounting hole 163 is provided on the inner side wall of the first positioning groove 162;

[0100] In this embodiment, the first pressing mechanism 20 includes a first pressing block 21 and a first driving unit 22 for driving the first pressing block 21 to move closer to or away from the placement block 70 , and the first driving unit 22 is connected to the main control unit 50 .

[0101] Preferably, the first driving unit 22 includes a bearing plate 221 and a first driving cylinder 222;

[0102] The four corners of the bearing plate 221 pass through a support column 13 through four bearings respectively so as to reciprocate up and down along the support column 13 . The first pressing block 21 is disposed on the lower end surface of the bearing plate 221 .

[0103] In this embodiment, the first pressing block 21 is disposed on the lower end surface of the bearing plate 221 through a reinforcing plate assembly. The reinforcing plate assembly includes a first aluminum plate 23, an antirust plate 24, and a second aluminum plate 25 stacked in sequence from top to bottom, and the sizes of the first aluminum plate 23, the antirust plate 24, and the second aluminum plate 25 are reduced in sequence. The first pressing block 21 is disposed on the lower end surface of the second aluminum plate 25.

[0104] In this embodiment, in order to improve the processing efficiency, the first pressing block 21, the placement block 70, the ejection mechanism 30 and the second pressing mechanism 40 are all provided with two and are symmetrically arranged at left and right intervals.

[0105] The two second pressing mechanisms 40 are located at the rear side of the placement block 70 , and the two first lower pressing blocks 21 are located above the placement block 70 .

[0106] The two first pressing blocks 21 are both located at the lower end surface of the second aluminum plate 25. The two first pressing blocks 21 share the same first driving cylinder 222, avoiding the need to set up an additional first driving cylinder 222, thereby reducing the purchase cost.

[0107] The lower end surface of the second aluminum plate 25 is provided with three connecting pieces 251 and three guide posts 252 facing the positioning seat 16. The upper end surface of the positioning seat 16 is formed with guide grooves 164 corresponding to the three guide posts 252. The three guide posts 252 and the three guide grooves 164 are arranged in an inverted triangle, and the three connecting pieces 251 are arranged in an equilateral triangle. When the first driving cylinder 222 moves downward, each guide post 252 is adapted to the corresponding guide groove 164 until each connecting piece 251 abuts against the positioning seat 16.

[0108] The first driving cylinder 222 extends out of the cover plate 144 from the first avoidance hole 147 . The first driving cylinder 222 drives the connecting support plate 221 to drive the support plate 221 to move up and down, thereby driving the first pressing block 21 to move closer to or away from the placement block 70 . The main control unit 50 is connected to the first driving cylinder 222 .

[0109] The placement block 70 is installed in the installation groove 161 and extends out of the positioning seat 16. The placement block 70 has a placement cavity 71 and a clearance groove 72 formed along the upper and lower end surfaces thereof, the clearance groove 72 is connected to the placement cavity 71, and the inner wall of the placement cavity 71 is formed with a first buckle position 711 and a second buckle position 712 for matching with the placement block 70;

[0110] The ejection mechanism 30 includes an ejection block 31 and a second driving cylinder 32 for driving the ejection block 31 to rise and fall relative to the placement block 70. The ejection block 31 is located in the clearance groove 72. The main control unit 50 is connected to the second driving cylinder 32. The second driving cylinder 32 drives the ejection block 31 to drive the ejection block 31 to extend into or leave the placement cavity 71. The second driving cylinder 32 is located in the second accommodating cavity 151.

[0111] In this embodiment, the second pressing mechanism 40 includes a second pressing block 41 and a third driving unit 42 for driving the second pressing block 41 to move closer to or away from the placement block 70 . The third driving unit 42 is connected to the main control unit 50 .

[0112] The second pressing mechanism 40 further includes a blocking block 43 , and the blocking block 43 is connected to the positioning seat 16 .

[0113] The blocking block 43 has a positioning protrusion 431 , and the positioning protrusion 431 is adapted in the first positioning groove 162 . Meanwhile, the lower end of the blocking block 43 is adapted in the second positioning groove 102 . The blocking block 43 is adapted in the mounting hole 163 of the positioning seat 16 via a locking screw.

[0114] The blocking block 43 has a second avoidance hole 432, the second pressing block 41 has a limiting step portion 411, and the third driving unit 42 drives the second pressing block 41 to drive the second pressing block 41 to extend into the first avoidance hole 147 or pass through the second avoidance hole 432 to extend out of the blocking block 43;

[0115] When the second pressing block 41 passes through the second avoiding hole 432 and extends out of the blocking block 43 , the limiting step portion 411 abuts against the blocking block 43 .

[0116] The third driving unit 42 includes a fixing frame 421 and a third driving cylinder 422 disposed on the fixing frame 421 . The fixing frame 421 is connected to the horizontal workbench 101 . The fixing frame 421 has an inclined portion 423 . The third driving cylinder 422 is disposed on the inclined portion 423 .

[0117] A method for positioning a blue-ear earphone shell before being rubber-coated, based on the positioning device before the blue-ear earphone shell is rubber-coated, comprises the following steps:

[0118] Step 1, pre-placing the workpiece 60 to be encapsulated on the placement block 70;

[0119] Step 2, controlling the first pressing mechanism 20 to press downward a portion of the shell of the workpiece 60 to be encapsulated with glue;

[0120] Step 3, controlling the ejection mechanism 30 to eject upward the unpressed portion of the shell of the workpiece 60 to be encapsulated so that its buckling position is compatible with the placement block 70;

[0121] Step 4, control the second pressing mechanism 40 to obliquely press the other part of the shell of the workpiece 60 to be encapsulated so that its buckle position is compatible with the placement block 70, that is, the fitting and positioning of the workpiece 60 to be encapsulated and the placement block 70 is completed.

[0122] The design focus of the present invention is that it mainly realizes automatic positioning before encapsulation through the cooperation of the first clamping mechanism, the ejection mechanism and the second clamping mechanism, has a high degree of intelligence, reduces labor costs, has high processing efficiency, and makes the workpiece to be processed more closely fit the corresponding buckle position of the placement block, thereby ensuring the stability and reliability of the workpiece to be processed during the encapsulation process; in particular, two workpieces to be encapsulated can be positioned at the same time, further improving work efficiency, and the two placement blocks share the same first clamping mechanism, thereby reducing the number of first clamping mechanisms set, reducing hardware configuration and maintenance costs, and is conducive to realizing the miniaturization of the spatial design of the positioning device, and can also reduce the energy loss when the two first clamping mechanisms work at the same time.

[0123] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A positioning device for a blue earphone shell before being encapsulated with rubber, characterized in that: The invention comprises a frame, a placing block for placing the workpiece to be encapsulated with glue, a first pressing mechanism for vertically pressing a part of the shell of the workpiece to be encapsulated on the placing block, an ejecting mechanism for ejecting upward a part of the shell of the workpiece to be encapsulated on the placing block that is not pressed so that its buckle position is matched with the placing block, and a second pressing mechanism for obliquely pressing another part of the shell of the workpiece to be encapsulated on the placing block so that another buckle position is matched with the placing block; The frame has a horizontal workbench, and two placement blocks are provided and both are located on the upper end surface of the horizontal workbench; the two placement blocks share a first clamping mechanism; The ejection mechanism and the second clamping mechanism are both provided with two, and each placement block is provided with one ejection mechanism and one second clamping mechanism; It also includes a main control unit, which is respectively connected to the first clamping mechanism, the ejecting mechanism and the second clamping mechanism.

2. The positioning device for the blue earphone shell before being encapsulated with rubber according to claim 1, characterized in that: The first pressing mechanism includes a first pressing block and a first driving unit for driving the first pressing block to approach or move away from the placement block, and the first driving unit is connected to the main control unit.

3. The positioning device for the blue earphone shell before being encapsulated with rubber according to claim 2, characterized in that: The frame includes a bottom plate, a top plate, and four supporting columns located between the bottom plate and the top plate; The horizontal workbench is arranged on the upper end surface of the bottom plate, and the four corners of the bottom plate are connected to the four corners of the top plate through a support column respectively; The first driving unit includes a bearing plate and a first driving cylinder; The four corners of the bearing plate are respectively passed through a support column through four bearings to reciprocate up and down along the support column, and the first pressing block is arranged on the lower end surface of the bearing plate; The first driving cylinder drives the connected carrier plate to drive the carrier plate to rise and fall, and then drives the first pressing block to approach or move away from the placement block. The main control unit is connected to the first driving cylinder.

4. The positioning device for the blue earphone shell before being encapsulated with rubber according to claim 1, characterized in that: The placement block has a placement cavity and a clearance groove extending along the upper and lower end surfaces thereof, the clearance groove is connected to the placement cavity, and the inner wall of the placement cavity is formed with a first buckle position and a second buckle position for matching with the placement block; The ejection mechanism includes an ejection block and a second driving cylinder for driving the ejection block to rise and fall relative to the placement block. The ejection block is located in the clearance groove. The main control unit is connected to the second driving cylinder. The second driving cylinder drives the ejection block to drive the ejection block to extend into or leave the placement cavity.

5. The positioning device for the blue earphone shell before being encapsulated with rubber according to claim 1, characterized in that: The second pressing mechanism includes a second pressing block and a third driving unit for driving the second pressing block to approach or move away from the placement block, and the third driving unit is connected to the main control unit.

6. The positioning device for the blue earphone shell before being encapsulated with rubber according to claim 5, characterized in that: The horizontal workbench is provided with a positioning seat, the positioning seat has a mounting groove running through it in the up-down direction, and the placement block is installed in the mounting groove and extends out of the positioning seat; The second clamping mechanism further includes a blocking block, the blocking block is connected to the positioning seat, the blocking block has an avoidance hole, the second pressing block has a limiting step portion, and the third driving unit drives the second pressing block to extend into the avoidance hole or pass through the avoidance hole to extend out of the blocking block; When the second pressing block passes through the avoidance hole and extends out of the blocking block, the limiting step portion abuts against the blocking block.

7. The positioning device for the blue earphone shell before being encapsulated with rubber according to claim 5, characterized in that: A first positioning groove is arranged on the outer peripheral side of the positioning seat, and a mounting hole is arranged on the inner side wall of the first positioning groove; The upper end surface of the horizontal workbench is concavely provided with a second positioning groove, and the second positioning groove is connected to the first positioning groove; The blocking block has a positioning protrusion, which is adapted in the first positioning groove. Meanwhile, the lower end of the blocking block is adapted in the second positioning groove. The blocking block is adapted in the mounting hole of the positioning seat through a locking screw.

8. The positioning device for the blue earphone shell before being encapsulated with rubber according to claim 5, characterized in that: The second driving unit includes a fixing frame and a third driving cylinder arranged on the fixing frame, the fixing frame is connected to the horizontal workbench, the fixing frame has an inclined portion, and the second driving cylinder is arranged on the inclined portion.

9. The positioning device for a blue earphone shell before being encapsulated with rubber according to claim 1, characterized in that: The positioning seat is detachably connected to the horizontal workbench.

10. A positioning method for a blue earphone shell before encapsulation, characterized in that: The positioning device for the blue earphone shell before being encapsulated with rubber according to any one of claims 1 to 9 comprises the following steps: Step 1, pre-place the workpiece to be encapsulated on the placement block; Step 2, controlling the first pressing mechanism to press downward a portion of the shell of the workpiece to be encapsulated; Step 3, controlling the ejection mechanism to eject upward the unpressed portion of the shell of the workpiece to be encapsulated so that its buckling position is compatible with the placement block; Step 4, control the second pressing mechanism to obliquely press the other part of the shell of the workpiece to be encapsulated so that its buckling position is compatible with the placement block, that is, the fitting and positioning of the workpiece to be encapsulated and the placement block are completed.

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