Positioning device and method before injection molding of cylindrical FPC (Flexible Printed Circuit)

Abstract

The invention relates to a positioning device and method before injection molding of a cylindrical FPC (Flexible Printed Circuit). The positioning device comprises a rack, a placing block, a clamping mechanism and a pressing mechanism, wherein the placing block is used for placing a to-be-processed part; the clamping mechanism is used for transversely clamping the FPC of the to-be-processed part positioned in the placing block; the placing block is arranged on the upper end face of the rack, and the clamping mechanism and the pressing mechanism are both arranged on the rack. The main control unit is respectively connected with the clamping mechanism and the pressing mechanism; a to-be-machined workpiece is more attached to a containing block, subsequent machining is facilitated, the intelligent degree is high, the machining efficiency and the machining quality are improved, and the labor cost is reduced. The whole positioning method is simple, the intelligent degree is high, and meanwhile, the stability and the reliability of subsequent workpieces to be machined in the machining process are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of a positioning device and method before a tubular FPC is injected, and in particular to a positioning device and method before a tubular FPC is injected. 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 hassle of annoying wires and make calls easily in a variety of ways. They can operate a computer and keep talking at the same time. In addition, the most widely used application of Bluetooth technology in daily life is in mobile phone call devices that support Bluetooth, such as mobile phone Bluetooth headsets. Bluetooth makes driving safer.

[0004] The power conversion chip of an existing Bluetooth headset generally includes an FPC, a power chip body, and a cylindrical shell with open ends. The power chip body is located in the cylindrical shell, one end of the FPC extends into the cylindrical shell and is connected to the power chip body, and the other end of the FPC extends out of the cylindrical shell.

[0005] The existing power conversion chip needs to be injection molded, and before the injection molding, it needs to be manually placed in the placement groove of the mold core and then the injection molding is performed. However, the FPC does not fit the placement groove, resulting in an increase in thickness after injection molding, which affects the quality of the product.

[0006] Therefore, in the patent application of the present invention, the applicant has carefully studied a positioning device and method before the injection molding of a cylindrical FPC to solve the above-mentioned problems. Summary of the invention

[0007] In view of the shortcomings of the above-mentioned prior art, the present invention aims to provide a positioning device and method for cylindrical FPC before injection molding, which makes the workpiece to be processed fit the placement block more closely, is convenient for subsequent processing, has a high degree of intelligence, improves processing efficiency and processing quality, and reduces labor costs; the entire positioning method is simple and has a high degree of intelligence, while ensuring the stability and reliability of subsequent processed parts during the processing.

[0008] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme:

[0009] A positioning device for a cylindrical FPC before injection molding, comprising a frame, a placement block for placing a workpiece to be processed, a clamping mechanism for transversely clamping the FPC of the workpiece to be processed located in the placement block, and a pressing mechanism for longitudinally pressing the workpiece to be processed;

[0010] The placing block is arranged on the upper end surface of the frame, and the clamping mechanism and the pressing mechanism are both arranged on the frame;

[0011] It also includes a main control unit and a left handle and a right handle for carrying the rack, and the main control unit is respectively connected to the clamping mechanism and the pressing mechanism.

[0012] As a preferred solution, the clamping mechanism includes a clamping block located above the placement block and a first driving cylinder for driving the clamping block to move closer to or away from the placement block, and the first driving cylinder is connected to the main control unit.

[0013] As a preferred solution, the upper end surface of the placement block is concavely provided with a first placement groove for placing a cylindrical shell of a workpiece to be processed and a first groove with an open opening, and the first groove is connected to the first placement groove;

[0014] The clamping mechanism includes a clamping block and a driving mechanism for driving the clamping block to approach or move away from the groove. The clamping block is provided with a second groove that is concave outwardly toward the end face of the first groove and is compatible with the first groove. The first groove and the second groove together form a second placement groove for placing the FPC of the workpiece to be processed. The driving mechanism drives the connected clamping block to approach or move away from the first groove to clamp or release the FPC of the workpiece to be processed located in the second placement groove. The driving mechanism is connected to the main control unit.

[0015] As a preferred solution, the placement block is suspended above the upper end surface of the frame, and a gap is maintained between the placement block and the upper end surface of the frame;

[0016] The driving mechanism includes a connecting member and a second driving cylinder, the second driving cylinder is located in the gap, the upper end of the connecting member is connected to the clamping block, and the output end of the second driving cylinder is connected to the lower end of the connecting member to drive the clamping block to approach or move away from the first groove through the connecting member.

[0017] As a preferred solution, a groove is concavely formed on the lower end surface of the clamping block, a cam is formed on the upper end of the connecting piece, the clamping block is connected to the connecting piece, and the cam fits into the groove.

[0018] As a preferred solution, the upper end surface of the placement block is further concavely provided with a slide groove for displacement of the clamping block, the clamping groove is connected to the slide groove, and the slide groove is respectively connected to the first groove and the second groove;

[0019] The clamping block is slidably mounted in the slide groove, and the end surface of the clamping block facing away from the first groove is connected to the inner side wall of the avoidance groove through an elastic reset member.

[0020] As a preferred solution, the lower end surface of the placement block is recessed upward with an avoidance groove, the upper end of the avoidance groove is connected to the slide groove, and the clamping protrusion at the upper end of the connecting piece is adapted in the clamping groove via the avoidance groove and the slide groove in sequence.

[0021] As a preferred solution, it also includes a control switch arranged on the rack, and the control switch is connected to the main control unit.

[0022] A method for positioning a cylindrical FPC before injection molding, based on the positioning device for positioning a cylindrical FPC before injection molding, comprises the following steps:

[0023] Step 1, placing the workpiece to be processed in the placement block;

[0024] Step 2, transversely clamping the FPC to be processed located in the placement block by a clamping mechanism;

[0025] Step 3, longitudinally compressing the FPC of the workpiece to be processed in the placement block through a clamping mechanism.

[0026] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically: it can automatically press and clamp the workpiece to be processed mainly through the cooperation of the pressing mechanism and the clamping mechanism, so that the workpiece to be processed can fit the placement block more closely, which is convenient for subsequent processing. It has a high degree of intelligence, improves processing efficiency and processing quality, and reduces labor costs. The entire positioning method is simple and has a high degree of intelligence, while ensuring the stability and reliability of subsequent processed parts during the processing.

[0027] In order to more clearly illustrate the structural features and effects of the present invention, it is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a preferred embodiment of the present invention;

[0029] Figure 2 It is a structural schematic diagram from another angle of a preferred embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the decomposed structure of a preferred embodiment of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the clamping mechanism of a preferred embodiment of the present invention;

[0032] Figure 5 It is a schematic diagram of the exploded structure of the clamping mechanism of a preferred embodiment of the present invention;

[0033] Figure 6 It is a schematic diagram of the placement block structure of a preferred embodiment of the present invention;

[0034] Figure 7 is a top view of a placement block of a preferred embodiment of the present invention;

[0035] Figure 8 It is a partial enlarged cross-sectional view of a preferred embodiment of the present invention (mainly showing the second placement groove).

[0036] Description of Figure Numbers:

[0037] 10. Rack

[0038] 20. Place blocks

[0039] 21. Slide 22. Avoidance groove

[0040] 23. First placement groove 24. First groove

[0041] 25. Second placement slot

[0042] 30. Clamping mechanism

[0043] 31. Clamping block 311. Card slot

[0044] 32. Second groove 33. Elastic reset member

[0045] 34. Connecting piece 341. Card convex

[0046] 35. Second drive cylinder

[0047] 40. Clamping mechanism

[0048] 41. Pressing block 42. First driving cylinder

[0049] 51. Manual switch 52. Left handle

[0050] 53. Right handle 54. Main control unit. DETAILED DESCRIPTION

[0051] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0052] like Figures 1 to 8 As shown, a positioning device for a cylindrical FPC before injection molding includes a main control unit 54, a frame 10, a placement block 20 for placing a workpiece to be processed, a clamping mechanism 30 for transversely clamping the FPC of the workpiece to be processed located in the placement block 20, and a clamping mechanism 40 for longitudinally clamping the workpiece to be processed; the main control unit 54 is respectively connected to the clamping mechanism 30 and the clamping mechanism 40.

[0053] The placement block 20 is arranged on the upper end surface of the frame 10. In this embodiment, the placement block 20 is suspended above the upper end surface of the frame 10, and a gap is maintained between the placement block 20 and the upper end surface of the frame 10. The upper end surface of the placement block 20 is also concavely provided with a slide groove 21 for displacement of the clamping block 31. The lower end surface of the placement block 20 is concavely provided with an avoidance groove 22, and the upper end of the avoidance groove 22 is connected to the slide groove 21.

[0054] The upper end surface of the placement block 20 is concavely provided with a first placement groove 23 of a cylindrical shell for placing a workpiece to be processed and a first open groove 24, wherein the first groove 24 is connected to the first placement groove 23;

[0055] The clamping mechanism 30 and the pressing mechanism 40 are both arranged on the frame 10;

[0056] In this embodiment, the pressing mechanism 40 includes a pressing block 41 located above the placement block 20 and a first driving cylinder 42 for driving the pressing block 41 to move closer to or away from the placement block 20 , and the first driving cylinder 42 is connected to the main control unit 54 .

[0057] The clamping mechanism 30 includes a clamping block 31 and a driving mechanism for driving the clamping block 31 to move closer to or farther from the groove. The clamping block 31 is slidably mounted in the sliding groove 21 .

[0058] The clamping block 31 has a second groove 32 that matches the first groove 24, and the first groove 24 and the second groove 32 together form a second placement groove 25 for placing the FPC to be processed. The clamping block 31 has a recessed groove 311 on its lower end surface, and the groove 311 is connected to the slide groove 21, and the slide groove 21 is connected to the first groove 24 and the second groove 32 respectively.

[0059] The driving mechanism drives the connecting clamp block 31 to move closer to or away from the first groove 24 to clamp or release the FPC to be processed in the second placement groove 25. The end surface of the clamp block 31 facing away from the first groove 24 is connected to the inner side wall of the avoidance groove 22 through an elastic reset member 33.

[0060] The driving mechanism is connected to the main control unit 54. The driving mechanism includes a connecting member 34 and a second driving cylinder 35, the second driving cylinder 35 is located in the gap, the upper end of the connecting member 34 is connected to the clamping block 31, and the output end of the second driving cylinder 35 is connected to the lower end of the connecting member 34 to drive the clamping block 31 to approach or move away from the first groove 24 through the connecting member 34. In this embodiment, a clamping protrusion 341 is formed on the upper end of the connecting member 34, the clamping block 31 is connected to the connecting member 34, and the clamping protrusion 341 is adapted to fit in the clamping groove 311.

[0061] In this embodiment, the locking protrusion 341 on the upper end of the connecting member 34 is adapted to the locking groove 311 through the avoidance groove 22 and the sliding groove 21 in sequence.

[0062] The rack 10 also includes a control switch and a left handle 52 and a right handle 53 for carrying the rack 10, wherein the control switch is connected to a main control unit 54. Preferably, the control switch is a manual switch 51. The left handle 52 and the right handle 53 are respectively arranged on the left and right sides of the placement block 20.

[0063] A method for positioning a cylindrical FPC before injection molding, based on the positioning device for positioning a cylindrical FPC before injection molding, comprises the following steps:

[0064] Step 1, placing the workpiece to be processed in the placement block 20;

[0065] Step 2, the FPC to be processed located in the placement block 20 is laterally clamped by the clamping mechanism 30;

[0066] Step 3, the FPC to be processed in the placement block 20 is longitudinally pressed by the pressing mechanism 40.

[0067] The key point of the design of the present invention is that it can automatically press and clamp the workpiece mainly through the cooperation of the pressing mechanism and the clamping mechanism, so that the workpiece can fit the placement block more closely, which is convenient for subsequent processing. It has a high degree of intelligence, improves processing efficiency and processing quality, and reduces labor costs. The entire positioning method is simple and has a high degree of intelligence, while ensuring the stability and reliability of subsequent workpieces during the processing.

[0068] 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 cylindrical FPC before injection molding, characterized in that: It includes a frame, a placement block for placing the workpiece to be processed, a clamping mechanism for transversely clamping the FPC of the workpiece to be processed located in the placement block, and a pressing mechanism for longitudinally pressing the workpiece to be processed; The placing block is arranged on the upper end surface of the frame, and the clamping mechanism and the pressing mechanism are both arranged on the frame; It also includes a main control unit and a left handle and a right handle for carrying the rack, and the main control unit is respectively connected to the clamping mechanism and the pressing mechanism.

2. The positioning device before the tubular FPC injection molding according to claim 1 is characterized in that: The clamping mechanism includes a clamping block located above the placement block and a first driving cylinder for driving the clamping block to approach or move away from the placement block, wherein the first driving cylinder is connected to the main control unit.

3. The positioning device before the tubular FPC injection molding according to claim 1 is characterized in that: The upper end surface of the placement block is concavely provided with a first placement groove for placing a cylindrical shell of a workpiece to be processed and a first groove with an open opening, wherein the first groove is communicated with the first placement groove; The clamping mechanism includes a clamping block and a driving mechanism for driving the clamping block to approach or move away from the groove. The clamping block is provided with a second groove that is concave outwardly toward the end face of the first groove and is compatible with the first groove. The first groove and the second groove together form a second placement groove for placing the FPC of the workpiece to be processed. The driving mechanism drives the connected clamping block to approach or move away from the first groove to clamp or release the FPC of the workpiece to be processed located in the second placement groove. The driving mechanism is connected to the main control unit.

4. The positioning device before the tubular FPC injection molding according to claim 3 is characterized in that: The placement block is suspended above the upper end surface of the frame, and a gap is maintained between the placement block and the upper end surface of the frame; The driving mechanism includes a connecting member and a second driving cylinder, the second driving cylinder is located in the gap, the upper end of the connecting member is connected to the clamping block, and the output end of the second driving cylinder is connected to the lower end of the connecting member to drive the clamping block to approach or move away from the first groove through the connecting member.

5. The positioning device before the tubular FPC injection molding according to claim 4 is characterized in that: The lower end surface of the clamping block is concavely provided with a clamping groove, the upper end of the connecting piece is formed with a clamping protrusion, the clamping block is connected to the connecting piece, and the clamping protrusion is adapted to fit in the clamping groove.

6. The positioning device before the tubular FPC injection molding according to claim 5 is characterized in that: The upper end surface of the placement block is also concavely provided with a slide groove for displacement of the clamping block, the clamping groove is connected to the slide groove, and the slide groove is respectively connected to the first groove and the second groove; The clamping block is slidably mounted in the slide groove, and the end surface of the clamping block facing away from the first groove is connected to the inner side wall of the avoidance groove through an elastic reset member.

7. The positioning device before the tubular FPC injection molding according to claim 6 is characterized in that: The lower end surface of the placement block is recessed upwardly with an avoidance groove, the upper end of the avoidance groove is connected to the slide groove, and the clamping protrusion at the upper end of the connecting piece is adapted to the clamping groove through the avoidance groove and the slide groove in sequence.

8. The positioning device before the tubular FPC injection molding according to claim 1 is characterized in that: It also includes a control switch arranged on the frame, and the control switch is connected to the main control unit.

9. A positioning method for a cylindrical FPC before injection molding, characterized in that: The positioning device before the tubular FPC injection molding according to any one of claims 1 to 8 comprises the following steps: Step 1, placing the workpiece to be processed in the placement block; Step 2, transversely clamping the FPC to be processed located in the placement block by a clamping mechanism; Step 3, longitudinally compressing the FPC of the workpiece to be processed in the placement block through a clamping mechanism.

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