Optical receiver TO-can tube base processing tool

Abstract

The present application relates to the technical field of optical receiver processing, and discloses a kind of optical receiver TO-can pipe base processing frock, including stacking board, still including taking and placing board, the top of the stacking board is equipped with water droplet groove, water droplet seat is received in the water droplet groove, the water droplet seat has the stepped surface of supporting pipe base, the through-hole of through pin, and pin passes through the stacking board, the water droplet seat water droplet shape tail end is equipped with jack, the bottom of the taking and placing board is fixedly connected with the plug-in negative suction rod corresponding with the jack;The present technical solution solves the problem that TO-can pipe base is difficult to circulate in multi-hole mold, adopts water droplet seat design, realizes batch TO-can pipe base transfer, and solves the problem of pin stress caused by the direct dispersion of conical tip under the pin gathering state and the wear problem of conical tip by means of the characteristics of vertical projection triangular empty area, the increase of the area of plan view projection by using triangular block closure, and the secondary dispersion mode of pin.

Description

Technical Field

[0001] This invention relates to the field of optical receiver processing technology, specifically a tooling for processing an optical receiver TO-can socket. Background Technology

[0002] The TO-can socket requires subsequent processes such as applying silver paste, soldering the chip, connecting gold wires, and packaging. Currently, the entire process is completed using a single piece of equipment. Due to the small processing area of ​​the entire TO-can socket and the high precision requirements for processing position, a vision processing system has been added to the processing equipment.

[0003] TO-CAN tube sockets are primarily packaged in bulk. The advantage of bulk packaging is low cost, but the disadvantage is that the leads are easily squeezed, bent, or tilted. To simplify the initial handling process, a loading machine is added. The loading machine includes a gripping end, a lead-gathering clamping end, a rotating end, and a vision acquisition end. A multi-hole mold is placed into the loading machine. The gripping end uses negative pressure to adhere to the end face of the TO-CAN tube socket, and the lead-gathering clamping end ensures the leads are in a gathered state. In this gathered state, the gripping end loads the TO-CAN tube socket into the rotating end. The vision acquisition end captures the current position of the TO-CAN tube socket. The rotating end rotates to the standard position, and the gripping end performs a second gripping and loading into the multi-hole mold. As can be seen from the above, the gathered leads primarily facilitate insertion into the socket.

[0004] The main problems we are currently encountering are as follows: Question A: Different equipment manufacturers have different requirements, and the tooling specifications required for different equipment vary. For example, the core of a feeder is feeding. The larger the load capacity of a single multi-hole mold, the better. The feeding process is simple and can meet the needs of large-volume single-batch operations. However, the welding process is slow and requires multiple steps such as dispensing, feeding, and welding, which require high precision. Multi-hole molds with large load capacities are actually not conducive to the use of welding equipment. Therefore, welding equipment is mainly designed for small load capacities. When the feeder is feeding, the position of the TO-can tube seat is already fixed. If the mold is changed manually, the position accuracy is insufficient. If the feeder continues to be used, it will cause the feeder to be overloaded.

[0005] Question B: Bent TO-CAN pins require secondary adjustment. A Chinese patent (CN204156261U) discloses a socket for correcting TO-CAN pins. This patent focuses on the converging end of the pins, guiding the pins to bifurcate along a tapered tip. This method is currently the most common. However, the pin end faces are flat and without chamfers. The pins are directly inserted into the tapered tip, resulting in sharp edges and uncontrollable friction. This easily leads to excessive resistance at the pin end, causing bending in the middle of the pin, or scratching the tapered tip, further increasing friction. The main reason for this problem is that the tapered tip needs to correspond to the converging end of the pin. Manual alignment is difficult, and misalignment allows the contact force between the pin and the tapered tip to be transmitted through the pin to the socket, causing the pin to bend under stress. Summary of the Invention

[0006] The purpose of this invention is to provide a tooling for processing a TO-can socket for an optical receiver, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A tooling for processing a TO-can socket for an optical receiver includes a stacking plate and a pick-and-place plate; The top of the stacking plate is provided with a water droplet groove, and a water droplet seat is stored in the water droplet groove. The water droplet seat has a stepped surface that supports the tube seat, a through hole for the pin, and the pin passes through the stacking plate. The water droplet-shaped tail end of the water droplet seat is provided with an insertion hole. The bottom of the pick-and-place plate is fixedly connected with a plug-in negative suction rod corresponding to the insertion hole. As a further embodiment of the present invention, it also includes a multi-sided frame body, which is fixed to the bottom surface of the stacking plate, and the multi-sided frame body is provided with a plurality of flip-type triangular blocks in a ring, the flip-type triangular blocks being rotatably connected to the multi-sided frame body. In the absence of a workpiece, the flip-type triangular block has an angle with the polygonal frame, and the vertical projection area of ​​the flip-type triangular block cannot cover the vertical projection triangle empty area. The hypotenuses corresponding to the two pins of the vertical projection triangle empty area are spaced apart from the edge of the vertical projection area of ​​the flip-type triangular block.

[0008] As a further embodiment of the present invention: a negative pressure channel is embedded inside the pick-and-place plate, the handle end face of the pick-and-place plate and the bottom surface of the plug-in negative suction rod are both open structures and communicate with the negative pressure channel, and the bottom surface of the insertion hole has a rubber layer that mates with the bottom surface of the plug-in negative suction rod.

[0009] As a further embodiment of the present invention: the interior of the teardrop base is provided with a suction channel, one end of which is located on the bottom surface of the insertion hole and communicates with the negative pressure channel, and the other outlets of the suction channel are located on the top surface of the stepped surface of the teardrop base and are covered by the tube base.

[0010] As a further embodiment of the present invention: the polygonal frame is replaced with a sliding triangular block, the number of which is several, the sliding triangular block slides on the bottom surface of the stacking plate, the stacking plate has a vertical through groove, and an elastic element is placed in the groove, the elastic element is connected to the sliding triangular block. When the sliding triangular block is in the closed position, the sliding triangular block corresponds to the vertical projection triangular empty area. A wedge is fixedly connected to the top of the sliding triangular block, and a convex ball is fixedly connected to the end of the wedge. A locking ball groove corresponding to the convex ball is opened on the periphery of the teardrop seat.

[0011] As a further embodiment of the present invention: circular holes are provided at the four corners of the insertion hole, and the shape of the insertion negative suction rod is a right prism.

[0012] As a further aspect of the present invention: a spring sheet is provided between the flip-type triangular block and the polygonal body, and when the flip-type triangular block is static, the angle between the flip-type triangular block and the polygonal body is greater than zero degrees and less than ninety degrees.

[0013] As a further embodiment of the present invention, it also includes a reset plate that presses the flip-type triangular block to rotate to a horizontal position. The reset plate has a plurality of clearance holes and is located below the stacking plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This technical solution addresses the difficulty of transferring TO-can sockets in multi-hole molds. It employs a teardrop-shaped socket design to enable batch transfer of TO-can sockets. Utilizing the vertical projection triangular space feature, it sets up triangular blocks on the bottom surface of the stacking plate to disperse the leads on the carrier. By leveraging the reduced projection area of ​​the tilted triangular blocks, it does not affect the insertion of the TO-can sockets. Furthermore, during retrieval, the closing of the triangular blocks increases the projection area, driving a secondary dispersion of the leads. This solves the problems of lead stress and wear caused by direct dispersion of the conical tip when the leads are clustered. For leads with high springback, it can be coupled with the conical tip to form a combination of lead dispersion followed by shaping. This solution is fully compatible with existing TO-can socket production lines and meets their usage requirements. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional schematic diagram of a tooling for machining a TO-can socket for an optical receiver; Figure 2 A schematic diagram of the transfer of a tooling for machining a TO-can socket for an optical receiver; Figure 3 This is a schematic diagram of the pin positions in a tooling for machining a TO-can socket for an optical receiver; Figure 4 A three-dimensional schematic diagram from another perspective of a tooling for machining a TO-can socket for an optical receiver; Figure 5 A front cross-sectional view of a tooling for machining a TO-can socket for an optical receiver; Figure 6 A schematic diagram of the reset plate used in a tooling for machining a TO-can socket for an optical receiver; Figure 7 This is a schematic diagram of a second embodiment of a tooling for processing a TO-can socket for an optical receiver; Figure 8 This is a schematic diagram from another perspective of a second embodiment of a tooling for processing a TO-can socket for an optical receiver; In the diagram: 100. Vertical projection triangular empty area; 1. Stacking plate; 11. Water droplet groove; 2. Water droplet seat; 21. Insertion hole; 22. Suction channel; 23. Locking ball groove; 3. Pick-up and drop plate; 31. Insertion negative suction rod; 32. Negative pressure channel; 4. Multi-sided frame; 41. Flip-type triangular block; 5. Sliding triangular block; 51. Wedge block; 52. Convex ball; 6. Reset plate; 61. Clearance hole. Detailed Implementation

[0017] Please see Figures 1-8 Example 1: In this embodiment, the system includes a stacking plate 1, a pick-and-place plate 3, and a multi-sided frame 4. The top of the stacking plate 1 is provided with a water droplet groove 11, and a water droplet seat 2 is housed in the water droplet groove 11. The water droplet seat 2 has a stepped surface for supporting the tube seat and a through hole for the pin, and the pin passes through the stacking plate 1. The water droplet-shaped tail end of the water droplet seat 2 is provided with an insertion hole 21. The bottom of the pick-and-place plate 3 is fixedly connected with a plug-in negative suction rod 31 corresponding to the insertion hole 21.

[0018] The stacking plate 1 retains the commonly used multi-hole mold design, which is actually a multi-hole plate. The only difference is that the stacking plate 1 in this technical solution does not directly contact the TO-can tube seat.

[0019] To avoid hand contact during the processing of TO-can tube sockets, a teardrop groove 11 is provided on the top of the stacking plate 1. The teardrop groove 11 is teardrop-shaped, with one end rounded and the other end converging, forming the tail end. An insertion hole 21 is provided at the teardrop-shaped tail end of the teardrop socket 2, through which an attachment... Figure 1 As can be seen, the TO-can tube seat is placed inside the teardrop seat 2, and the insertion negative suction rod 31 is inserted into the socket 21. With the help of friction and the negative pressure generated by the suction of the insertion negative suction rod 31, the insertion negative suction rod 31 and the socket 21 are tightly connected.

[0020] Furthermore, each of the four corners of the insertion hole 21 has a circular hole, and the shape of the insertion negative suction rod 31 is a right prism, see details. Figure 7 The circular holes are distributed at the corners of the insertion hole 21. The insertion negative suction rod 31 is inserted into the inside of the insertion hole 21. The circular holes can avoid excessive sliding friction between the straight prism and the insertion hole 21, thus improving the convenience of insertion.

[0021] The engagement of the insertion negative suction rod 31 with the insertion hole 21 can prevent relative movement between the insertion hole 21 and the insertion negative suction rod 31. As explained in the background art, the position of the TO-can tube seat inside the teardrop seat 2 is fixed. Therefore, the posture of the insertion negative suction rod 31 is very important for the teardrop seat 2 during transportation. If the teardrop seat 2 and the insertion negative suction rod 31 rotate relative to each other, the teardrop seat 2 will be difficult to match with the subsequent mold, and the posture of the TO-can tube seat will also be prone to movement during the posture adjustment of the teardrop seat 2.

[0022] Additional explanation: When the TO-can tube socket is installed into the teardrop socket 2, the pins are gathered by the feeding machine, making the alignment more convenient during the subsequent transportation of the teardrop socket 2.

[0023] The previous section explained the transfer issue. The following section needs to consider the pin repositioning issue. To optimize pin repositioning, the following improvements are made: The multi-sided frame 4 is fixed to the bottom surface of the stacking plate 1, and the multi-sided frame 4 is provided with several flip-type triangular blocks 41 in a ring. The flip-type triangular blocks 41 are rotatably connected to the multi-sided frame 4. In the state without workpiece, the flip-type triangular blocks 41 and the multi-sided frame 4 have an angle, and the vertical projection area of ​​the flip-type triangular blocks 41 cannot cover the vertical projection triangular empty area 100. The hypotenuses corresponding to the two pins of the vertical projection triangular empty area 100 are spaced from the edge of the vertical projection area of ​​the flip-type triangular blocks 41.

[0024] This application adopts a completely new technical solution; please refer to the details. Figure 3After the pins are brought together, the vertical projection surface clearly shows a vertical projection triangle empty area 100 with no vertical interference region. Figure 3 The comparison images show that the area of ​​the blue region when the pin is vertical is larger than the vertical projection triangle 100 in the red region. Therefore, a polygonal body 4 and a flip-type triangle 41 are constructed using the vertical projection triangle 100. The vertical projection area of ​​the flip-type triangle 41 decreases when tilted, ensuring that its vertical projection area is within the vertical projection triangle 100, thus ensuring smooth pin insertion. When pin dispersion is required, the flip-type triangle 41 is rotated to maximize its vertical projection area. During pin removal, the flip-type triangle 41 smoothly disperses the pin along its tilt direction. This process demonstrates that the pin is subjected to a pulling force, which, compared to the direct dispersion method at the pin's retracted end, makes it less prone to bending.

[0025] Additional explanation: This design method completely solves the following problems in the TO-can pipe seat manufacturing process: A: When the processing steps do not require processing or detecting the pins, the vertical projection area of ​​the flip-type triangular block 41 is located within the vertical projection triangular empty area 100, and the pins move normally. B: When it is necessary to disperse the pins, simply close the flip-type triangular block 41, move the teardrop base 2 upward, and the pins will move relative to the flip-type triangular block 41. The flip-type triangular block 41 will then act on the pins to disperse them. No other dispersing equipment is required, and the operation is simple.

[0026] To further improve convenience, a reset plate 6 is also included, which rotates the press-and-flip triangular block 41 to a horizontal position. The reset plate 6 has several clearance holes 61 and is located below the stacking plate 1.

[0027] Align the clearance hole 61 with the converged pins, and install the reset plate 6 under the stacking plate 1. The reset plate 6 contacts the flip-type triangular block 41. Since there is a spring between the flip-type triangular block 41 and the multi-frame body 4, when the flip-type triangular block 41 is static, the angle between the flip-type triangular block 41 and the multi-frame body 4 is greater than zero degrees and less than ninety degrees, and the bottom end of the flip-type triangular block 41 converges towards the center. At this time, the multi-frame body 4 will inevitably be affected by the force and rotate to the horizontal.

[0028] Example 2:

[0029] To address the need for continuous processing in the future, when multiple devices are coupled and processed using the same size stacking board 1, the number of times the water droplet holder 2 is turned over is reduced. Therefore, the following improvements are implemented: The polygonal frame 4 is replaced with a sliding triangular block 5. There are several sliding triangular blocks 5. The sliding triangular blocks 5 slide on the bottom surface of the stacking plate 1. The stacking plate 1 has a vertical through groove, and an elastic element is placed in the groove. The elastic element is connected to the sliding triangular block 5. When the sliding triangular block 5 is in the closed position, the sliding triangular block 5 corresponds to the vertical projection triangular empty area 100. A wedge 51 is fixedly connected to the top of the sliding triangular block 5. A convex ball 52 is fixedly connected to the end of the wedge 51. A locking ball groove 23 corresponding to the convex ball 52 is opened on the periphery of the water droplet seat 2.

[0030] During assembly, the teardrop seat 2 is inserted into the teardrop groove 11. The wedge block 51 moves outward under the influence of the teardrop seat 2, and the spring is compressed until the teardrop seat 2 is completely inserted into the teardrop groove 11. The convex ball 52 contacts and locks with the locking ball groove 23. After processing, finished product inspection and workpiece removal and mold transfer are required. At this time, with the adsorption effect of the plug-in negative suction rod 31, the plug-in negative suction rod 31 removes the teardrop seat 2 upward, and the locking ball groove 23 disengages from the convex ball 52. Similarly, the spring drives the sliding triangular block 5 to move centripetally and close.

[0031] Please refer to the posture after closure. Figure 3 As the gap between two adjacent triangular blocks gradually narrows in the centripetal direction, the pin can be gradually straightened by the influence of the triangular blocks as it moves upward.

[0032] Additional information: A Teflon film can be applied to the side of the triangular block to reduce the sliding friction of the block and drive the pin to reset.

[0033] Supplementary explanations regarding Examples 1 and 2: Due to the influence of materials, different materials have different rebound rates. This device can disperse the pins during application, but a small amount of convergence may also occur after dispersion. To address this issue, this technical solution can also be directly applied to the detection of the conical tip of the socket. The specific principle is as follows: A: The reset plate 6 is engaged with the flip-type triangular block 41. The water droplet seat 2 is pulled upward by the pick-and-place plate 3. The bottom of the pin gradually approaches the flip-type triangular block 41 and opens up. At this time, the opened pin is aligned with the conical tip. The TO-can tube seat is inserted into the conical tip by the pick-and-place plate 3. The pin is dispersed twice under the influence of the conical tip. The pin moves outward and is not affected by the triangular groove between the two adjacent flip-type triangular blocks 41.

[0034] B: Place the pick-and-place plate 3 and the multi-sided frame 4 on the detection plate surface, align the pins with the conical tip, and drive the water droplet seat 2 and the stacking plate 1 to separate through the pick-and-place plate 3. After the sliding triangular block 5 closes, the stacking plate 1 descends to the detection plate surface, and the pins are in a separated state. Through the second insertion of the pick-and-place plate 3, the separated pins are more easily guided and dispersed by the conical tip.

[0035] Furthermore, to improve the accuracy of the TO-can connector position, the following method is adopted: The inside of the pick-and-place plate 3 is provided with a negative pressure channel 32. The handle end face of the pick-and-place plate 3 and the bottom face of the inserted negative suction rod 31 are open structures and communicate with the negative pressure channel 32. The bottom face of the insertion hole 21 has a rubber layer that matches the bottom face of the inserted negative suction rod 31. The inside of the water droplet seat 2 is provided with a suction channel 22. One end of the suction channel 22 is located on the bottom face of the insertion hole 21 and communicates with the negative pressure channel 32. The other channel openings of the suction channel 22 are located on the top face of the stepped surface of the water droplet seat 2 and are covered by the tube seat.

[0036] The handle end face is connected to the negative pressure machine through the negative pressure channel 32. The plug-in negative suction rod 31 is inserted into the socket 21. The rubber layer promotes sealing. The negative pressure acts on the suction channel 22 through the negative pressure channel 32. The suction channel 22 is covered by the tube seat. The TO-can tube seat is tightly adsorbed on the stepped surface. At the same time, the plug-in negative suction rod 31 and the socket 21 are also subject to negative pressure and are tightly fitted. With the help of the sliding friction of the socket 21 and the plug-in negative suction rod 31, the plug-in negative suction rod 31 and the socket 21 can move synchronously.

[0037] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tooling for processing a TO-CAN tube socket for an optical receiver, comprising a stacking board (1), characterized in that: It also includes the pick-and-place plate (3); The top of the stacking plate (1) is provided with a water droplet groove (11), and a water droplet seat (2) is stored in the water droplet groove (11). The water droplet seat (2) has a stepped surface supporting the tube seat and a through hole for the pin, and the pin passes through the stacking plate (1). The water droplet seat (2) has a plug hole (21) at the water droplet-shaped tail end. The bottom of the pick-and-place plate (3) is fixedly connected with a plug-in negative suction rod (31) corresponding to the plug hole (21).

2. The tooling for processing a TO-CAN tube socket for an optical receiver according to claim 1, characterized in that: It also includes a multi-sided frame (4), which is fixed to the bottom surface of the stacking plate (1), and the multi-sided frame (4) is provided with a number of flip-type triangular blocks (41) in a ring, and the flip-type triangular blocks (41) are rotatably connected to the multi-sided frame (4). In the absence of a workpiece, the flipped triangular block (41) has an angle with the polygonal frame (4), and the vertical projection area of ​​the flipped triangular block (41) cannot cover the vertical projection triangle empty area (100). The hypotenuses corresponding to the two pins of the vertical projection triangle empty area (100) are spaced from the edge of the vertical projection area of ​​the flipped triangular block (41).

3. The tooling for processing a TO-CAN tube socket for an optical receiver according to claim 1, characterized in that: The inside of the pick-and-place plate (3) is provided with a negative pressure channel (32). The handle end face of the pick-and-place plate (3) and the bottom face of the plug-in negative suction rod (31) are open structures and communicate with the negative pressure channel (32). The bottom face of the insertion hole (21) has a rubber layer that matches the bottom face of the plug-in negative suction rod (31).

4. The tooling for processing a TO-CAN tube socket for an optical receiver according to claim 3, characterized in that: The interior of the water droplet seat (2) is provided with a suction channel (22). One end of the suction channel (22) is located on the bottom surface of the insertion hole (21) and is connected to the negative pressure channel (32). The other openings of the suction channel (22) are located on the top surface of the stepped surface of the water droplet seat (2) and are covered by the tube seat.

5. The tooling for processing a TO-CAN tube socket for an optical receiver according to claim 2, characterized in that: The polygonal frame (4) is replaced with a sliding triangular block (5). The number of sliding triangular blocks (5) is several. The sliding triangular blocks (5) slide on the bottom surface of the stacking plate (1). The stacking plate (1) has a vertical through groove, and an elastic element is placed in the groove. The elastic element is connected to the sliding triangular block (5). When the sliding triangular block (5) is in the closed position, the sliding triangular block (5) corresponds to the vertical projection triangular empty area (100). A wedge (51) is fixedly connected to the top of the sliding triangular block (5), and a convex ball (52) is fixedly connected to the end of the wedge (51). A locking ball groove (23) corresponding to the convex ball (52) is opened on the periphery of the water droplet seat (2).

6. The tooling for processing a TO-CAN tube socket for an optical receiver according to claim 1, characterized in that: The four corners of the insertion hole (21) are provided with circular holes, and the shape of the insertion negative suction rod (31) is a straight prism.

7. The tooling for processing a TO-CAN tube socket for an optical receiver according to claim 2, characterized in that: A spring is provided between the flip-type triangular block (41) and the polygonal body (4). When the flip-type triangular block (41) is static, the angle between the flip-type triangular block (41) and the polygonal body (4) is greater than zero degrees and less than ninety degrees.

8. The tooling for processing a TO-CAN tube socket for an optical receiver according to claim 2, characterized in that: It also includes a reset plate (6) that presses the flip-type triangular block (41) to rotate to a horizontal position. The reset plate (6) has several clearance holes (61) and is located below the stacking plate (1).

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