Circuit board segmentation jig

Abstract

A circuit board segmentation jig comprises a working platform, a plurality of through grooves and threaded holes are evenly formed in the working platform, a segmentation jig is arranged on the working platform, the segmentation jig is fixed to the working platform in a threaded connection mode, a plurality of containing grooves, positioning holes and positioning pins are evenly arranged on the segmentation jig, and the positioning pins are fixedly connected with the segmentation jig. A dust remover is arranged on one side of the working platform and fixedly connected with the working platform, and a dusty gas inlet of the dust remover is formed in the side facing the working platform. According to the utility model, through the high-precision threaded holes uniformly distributed on the working platform and the segmentation jig, the rapid positioning and installation between the segmentation jig and the working platform are realized, and meanwhile, the segmentation jigs of different models can be accurately fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a circuit board cutting jig. Background Art

[0002] PCB is the installation and support platform of electronic devices, and also the carrier of electrical connection of electronic components. Its application range is extremely wide, covering almost all electronic products. Its quality will not only affect the performance of the product, but also affect the safety of the final product. In the process of producing circuit board components, because the area of ​​a single component is too small, producing one piece at a time not only affects the production efficiency, but also is not conducive to the production process requirements. Therefore, it is necessary to assemble several components into a plate with an area that meets the production requirements, and then divide it for use.

[0003] At present, the Chinese patent with the authorization announcement number CN213703612U discloses a cutting jig for dividing components of a circuit board, including a main body, a positioning pin 1, a positioning pin 2 and a positioning block; the surface of the main body is provided with a cavity 1, a cavity 2, a cavity 3 and a cavity 4; the cavity 2 is arranged in a row, and both sides of each cavity 2 are provided with a strip hole 1 at both ends; the cavity 3 is arranged in a row; both ends of each cavity 3 are provided with a strip hole 2; one side of the strip hole 2 is provided with a positioning pin 1; the cavity 4 is arranged in a row; both ends of each cavity 4 are provided with a strip hole 2; one side of the strip hole 2 is provided with a positioning pin 1; two positioning blocks are provided around the main body; and positioning pins 2 are provided at the four corners of the main body. The utility model is a circuit board placement positioning cutting carrier for dividing components between circuit boards, and multiple products can be placed on one carrier.

[0004] The above-mentioned prior art solution has the following defects: although the above-mentioned cutting jig positions the circuit board to ensure its accuracy, there is still a problem of difficulty in positioning the cutting jig relative to the processing platform. If it is fixed by limit blocks and locating pins, when processing different circuit boards, it is necessary to change the position of the limit blocks and locating pins for different jigs, which has high manpower and material costs and cannot meet production needs. Utility Model Content

[0005] The purpose of the utility model is to provide a circuit board cutting tool to solve the problems existing in the above-mentioned prior art.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A circuit board splitting jig comprises a working platform, a plurality of through slots and threaded holes are evenly arranged on the working platform, a splitting jig is arranged on the working platform, the splitting jig is screwed and fixed to the working platform, a plurality of accommodating slots, positioning holes and positioning pins are evenly arranged on the splitting jig, and the positioning pins are fixedly connected to the splitting jig;

[0008] A dust collector is arranged on one side of the working platform. The dust collector is fixedly connected to the working platform. The dust-containing gas inlet of the dust collector is arranged on the side facing the working platform.

[0009] By adopting the above technical solution, the disassembly and assembly of the splitting jig is very convenient. It only needs to align the positioning hole on the splitting jig with the threaded hole on the work platform and screw it in. The threaded hole itself has high precision and can accurately fix the position of the splitting jig, thereby improving the splitting accuracy of the circuit board during milling machine cutting.

[0010] In a further embodiment, a mask is provided on the working platform, the mask is bonded and fixed to the working platform, and the mask comprises PE.

[0011] By adopting the above technical solution and setting a mask on the work platform, it can be ensured that debris and powder in the cutting process will not enter the high-precision threaded holes, so as not to affect the fixing accuracy. Using PE as a mask is economical and practical. During inspection, you only need to tear it off and stick a new one.

[0012] In a further embodiment, the dust collector includes a casing, a lower air intake manifold, a dust collecting bucket, a filter cartridge, a blow pipe, a pulse valve and a centrifugal fan. A plurality of filter cartridges are detachably mounted on the inner top end of the casing. A blow pipe is arranged in the clean air chamber at the top end of the casing. The blow pipe is fixedly connected to the inner side wall of the casing. The blow pipe includes a plurality of blow nozzles, and the plurality of blow nozzles are coaxially arranged with the filter cartridge. A pulse valve is connected to one end of the blow pipe. The clean air outlet of the casing is connected to the air inlet of the centrifugal fan. A lower air intake manifold is arranged at the bottom end of the casing, and a dust collecting bucket is detachably mounted on the bottom end of the lower air intake manifold.

[0013] By adopting the above technical solution, since the internal space of the milling machine is difficult to clean, if too much debris and powder accumulate, it will affect the life of the machine, so a dust collector is set on the working platform. The dust-containing gas inlet of the dust collector is parallel to the working platform and remains open during the cutting process, so that the powder can be sucked out at the first time.

[0014] In a further embodiment, the centrifugal fan includes a casing, a main shaft, an impeller and a motor. The casing is provided with a main shaft, one end of the main shaft is sleeved with an impeller, and the other end of the main shaft is connected to a motor shaft.

[0015] By adopting the above technical solution, since the dust collector is installed on one side of the working platform, the weight and vibration issues must be considered. The centrifugal fan has excellent performance, novel and compact structure, small vibration, light weight, easy installation and maintenance, and long service life, which perfectly meets the requirements and will not affect the fixation of the splitting fixture.

[0016] In a further embodiment, a linear guide rail is horizontally arranged at the bottom end of the working platform, the bottom end of the working platform is fixedly connected to a slider of the linear guide rail, and a soft protective cover is arranged on the linear guide rail.

[0017] By adopting the above technical solution, the processing platform is set on the linear guide slider, which can make the three-axis linkage of the milling machine competent for all circuit board segmentation tasks. Although a dust collector is set on one side of the processing platform to absorb most of the dust, the linear guide has high precision requirements and still needs to be protected by a soft cover.

[0018] In a further embodiment, a plurality of grooves are evenly arranged on the working platform, and magnets are embedded in the grooves.

[0019] By adopting the above technical solution, a magnetic suction device is arranged on the working platform to initially absorb the splitting jig, which can assist in the positioning of the splitting jig, and there is no need to worry about displacement of the splitting jig when it is screwed to the working platform.

[0020] In summary, the utility model has the following beneficial effects:

[0021] 1. The threaded holes on the working platform and the splitting jig can facilitate disassembly and assembly and adapt to different splitting jigs. Due to the high precision of the threaded holes, the accuracy of the milling machine in cutting circuit boards is also improved accordingly;

[0022] 2. The dust collector can remove the powder and dust inside the milling machine, reduce the impact of dust on the circuit board, avoid the accumulation of powder and debris in the milling machine during cutting, and protect the internal linear guide rails and high-precision threaded holes on the processing platform;

[0023] 3. By embedding a magnet in the groove, the splitting jig can be adsorbed, thereby assisting the positioning of the threaded hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the internal structure of the dust collector used in the utility model;

[0026] Figure 3 It is a schematic diagram for reflecting the internal structure of the centrifugal fan in the utility model.

[0027] In the figure, 1. working platform; 11. linear guide; 12. soft protective cover; 13. groove; 14. magnet; 2. segmentation jig; 3. dust collector; 31. box; 32. lower air intake manifold; 33. dust collecting bucket; 34. filter cartridge; 35. blow nozzle; 36. pulse valve; 37. centrifugal fan; 371. casing; 372 main shaft; 373. impeller; 374. motor; 4. mask. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached Figure 1 In the description of this specification, the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from a particular component geometry, respectively. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this specification, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] Embodiment 1:

[0031] like Figure 1 As shown, a circuit board splitting jig includes a working platform 1, on which a plurality of through grooves and threaded holes are evenly arranged, a splitting jig 2 is arranged on the working platform 1, and the splitting jig 2 is screwed and fixed to the working platform 1, a plurality of accommodating grooves, positioning holes and positioning pins are evenly arranged on the splitting jig 2, and the positioning pins are fixedly connected to the splitting jig 2, and a plurality of grooves 13 are evenly arranged on the working platform 1, and magnets 14 are embedded in the grooves 13. Accurate positioning and fixation can be achieved through high-precision threaded holes on the working platform 1 and the splitting jig 2. Different splitting jigs 2 may have different sizes, but since the spacing distance between the threaded holes is the same, they can adapt well to different splitting jigs 2, making the process more flexible.

[0032] like Figure 1As shown, a dust collector 3 is arranged on one side of the working platform 1, and the dust collector 3 is fixedly connected to the working platform 1. The dust-containing gas inlet of the dust collector 3 is arranged on the side facing the working platform 1. A linear guide 11 is horizontally arranged at the bottom end of the working platform 1, and the bottom end of the working platform 1 is fixedly connected to the slider of the linear guide 11. A soft shield 12 is arranged on the linear guide 11, and a mask 4 is arranged on the working platform 1. The mask 4 is bonded and fixed to the working platform 1, and the mask 4 includes PE. The dust collector 3 arranged on one side of the working platform 1 has been considered in terms of performance and weight, and can be turned on during the milling process to absorb all the dust and powder inside the milling machine to protect the high-precision threaded holes and the linear guide 11. The soft shield 12 arranged on the linear guide 11 can prevent powder that has not been completely absorbed from entering the linear guide 11. The mask 4 arranged on the top of the working platform 1 is the same, which can further protect the high-precision threaded holes.

[0033] like Figure 2 As shown, the dust collector 3 includes a box body 31, a lower air intake manifold 32, a dust collecting bucket 33, a filter cartridge 34, a blowing nozzle 35, a pulse valve 36 and a centrifugal fan 37. A plurality of filter cartridges 34 are detachably mounted on the inner top of the box body 31. A blowing nozzle 35 is arranged in the clean air chamber at the top of the box body 31. The blowing nozzle 35 is fixedly connected to the inner side wall of the box body 31. The blowing nozzle 35 includes a plurality of blowing nozzles, and the plurality of blowing nozzles are coaxially arranged with the filter cartridge 34. One end of the blowing nozzle 35 is connected to the pulse valve 36. The clean air outlet of the box body is connected to the air inlet of the centrifugal fan 37. The bottom end of the box body 31 is provided with a lower air intake manifold 32. The bottom end of the lower air intake manifold 32 is detachably mounted with a dust collecting bucket 33. The dust-containing gas enters the box body 31. After entering the dust collector 3, due to the sudden expansion of the air flow cross-section and the action of the air flow distribution plate, a part of the coarse particles in the air flow settles in the lower air intake main pipe 32 under the action of power and inertia. After the fine-sized and low-density dust particles enter the dust filter chamber, the dust is deposited on the surface of the filter material through the combined effects of Brownian diffusion and screening. The purified gas enters the clean air chamber and is discharged from the exhaust pipe through the centrifugal fan 37. The filter cartridge 34 is vertically arranged at the top of the box body 31, so that when the dust-containing gas comes in, the filter cartridge 34 can contact the dust-containing gas to the greatest extent, and the blowing pipe 35 above the filter cartridge 34 is controlled by the pulse valve 36, and the pulse blowing components are used to release compressed air in an instant to convey the dust-cleaning airflow.

[0034] like Figure 3 As shown, the centrifugal fan 37 includes a casing 371, a main shaft 372, an impeller 373 and a motor 374. The casing 371 is provided with a main shaft 372, one end of the main shaft 372 is sleeved with an impeller 373, and the other end of the main shaft 372 is connected to the rotating shaft of the motor 374. The centrifugal fan 37 as a whole mainly provides an air intake to suck the dust-containing gas inside the milling machine into the dust collector 3. The motor 374 inside it drives the main shaft 372 to rotate, and the impeller 373 sleeved on the main shaft 372 rotates to convert the mechanical energy of the motor into wind energy.

[0035] Specific implementation process:

[0036] First, place the circuit board into the receiving groove of the splitting jig, align the through hole on the circuit board with the positioning pin on the splitting jig. After the circuit board is fully installed, place the splitting jig on the work platform. There is a magnet in the groove on the work platform, so the splitting jig can be initially positioned. After fine-tuning to the appropriate position, use the tool to screw the splitting jig and the work platform. Since the precision of the threaded hole is very high, the splitting jig can be fixed in a very precise position to facilitate subsequent milling. Then start the milling machine, and the dust collector starts synchronously. The milling cutter rotates to split the circuit board. During the cutting process, powder and debris are inevitably generated. However, the dust collector installed on the work platform will immediately absorb the powder and debris to prevent them from accumulating inside the milling machine, which will then affect the precision of the threaded holes and linear guides. After the processing is completed, the work platform is reset, the circuit board is taken out, and the next processing can be carried out. After cutting the entire batch of circuit boards, use the tool to release the screws, remove the splitting jig, and turn off the milling machine.

[0037] In the embodiments disclosed in the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments disclosed in the present invention can be understood according to specific circumstances.

[0038] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A circuit board cutting jig, comprising a working platform (1), characterized in that: The working platform (1) is evenly provided with a plurality of through grooves and threaded holes, the working platform (1) is provided with a segmentation jig (2), the segmentation jig (2) is screwed and fixed to the working platform (1), the segmentation jig (2) is evenly provided with a plurality of accommodating grooves, positioning holes and positioning pins, the positioning pins are fixedly connected to the segmentation jig (2); A dust collector (3) is arranged on one side of the working platform (1); the dust collector (3) is fixedly connected to the working platform (1); and a dust-containing gas inlet of the dust collector (3) is arranged on the side facing the working platform (1).

2. A circuit board separation jig according to claim 1, characterized in that: A mask (4) is provided on the working platform (1), the mask (4) is bonded and fixed to the working platform (1), and the mask (4) comprises PE.

3. The circuit board separation jig according to claim 1, characterized in that: The dust collector (3) comprises a housing (31), a lower air intake manifold (32), a dust collecting bucket (33), a filter cartridge (34), a blow pipe (35), a pulse valve (36) and a centrifugal fan (37). A plurality of filter cartridges (34) are detachably mounted on the inner top end of the housing (31). A blow pipe (35) is arranged in the clean air chamber at the top end of the housing (31). The blow pipe (35) is fixedly connected to the inner side wall of the housing (31). The blow pipe (35) comprises a plurality of blow nozzles, which are all coaxially arranged with the filter cartridge (34). One end of the blow pipe (35) is connected to the pulse valve (36). The clean air outlet of the housing is communicated with the air intake of the centrifugal fan (37). A lower air intake manifold (32) is arranged at the bottom end of the housing (31). The dust collecting bucket (33) is detachably mounted on the bottom end of the lower air intake manifold (32).

4. A circuit board separation jig according to claim 3, characterized in that: The centrifugal fan (37) comprises a casing (371), a main shaft (372), an impeller (373) and a motor (374); the casing (371) is provided with a main shaft (372); one end of the main shaft (372) is sleeved with an impeller (373); and the other end of the main shaft (372) is connected to a rotating shaft of a motor (374).

5. A circuit board separation jig (2) according to claim 4, characterized in that: A linear guide rail (11) is horizontally arranged at the bottom end of the working platform (1), the bottom end of the working platform (1) is fixedly connected to a slider of the linear guide rail (11), and a soft protective cover (12) is arranged on the linear guide rail (11).

6. A circuit board separation jig according to claim 5, characterized in that: A plurality of grooves (13) are evenly arranged on the working platform (1), and magnets (14) are embedded in the grooves (13).

Images