Pin shearing jig with protection function

Abstract

A pin shearing jig with a protection function comprises a transparent protective cover, a working platform and a cabinet, the working platform is fixedly installed at the top end of the cabinet and comprises a base plate, a tray and a top cover, a first containing groove is formed in the base plate, the bottom end of the base plate is fixedly connected with the working platform, the tray is placed in the containing groove, and the top cover is fixedly connected with the base plate. A second containing groove is formed in the tray, a handle is arranged on one side of the tray, a top cover is arranged on the tray, a plurality of through grooves are evenly formed in the top cover, a transparent protective cover is fixedly installed on the periphery of the base plate, and an opening is formed in the side, facing the handle, of the transparent protective cover. According to the utility model, through the transparent protective cover and the protective gloves adhered to the avoiding holes, workers in charge of pin shearing can be effectively protected, the pin condition of a circuit board can be conveniently observed in the pin shearing process, and the pin shearing device is very suitable for semi-automatic or manual pin shearing.

Description

Technical Field

[0001] The utility model relates to the field of circuit board production, in particular to a pin cutting jig with a protective function. Background Art

[0002] With the development of SMT processing technology, SMT patch processing has gradually replaced DIP insertion processing. However, due to the large size of some electronic components in PCBA production, DIP insertion processing has not yet been replaced and still plays a vital role in the electronic assembly process. DIP insertion processing is performed after SMT patch processing and is generally performed manually on an assembly line. The insert material is manually processed to produce pins, inserted into the PCB board, and then the assembled board is subjected to wave soldering. During this process, liquid tin is sprayed onto the PCB board, and then cooled to complete the soldering. Excessively long pins on the soldered board require trimming. Existing trimming processes often require personnel to wear appropriate protective equipment, such as goggles and gloves. However, the storage, management, and accessibility of this protective equipment are relatively cumbersome. Some workers, seeking convenience, do not wear labor protection equipment and violate regulations when trimming pins.

[0003] Currently, a Chinese patent with authorization announcement number CN217116546U discloses a PCB patch pin shearing protection device, comprising a base with four side panels arranged in a matrix above the base. One of the side panels has a material extraction trough on one side, and L-shaped limit plates are provided on both sides of the material extraction trough. A baffle is inserted in the middle of the two L-shaped limit plates, and the baffle is fixedly connected to a first fixed plate above. The base is located outside the side panels and has four positioning structures arranged in a matrix. This protection device has a simple structure, is easy to operate, and is easy to locate. It has good protection performance and facilitates the removal and placement of materials, effectively improving the safety of PCB patch pin shearing.

[0004] The above-mentioned existing technical solutions have the following defects: the device is mainly suitable for automatic PCB board shearing machines, and is not suitable for semi-automatic or manual shearing. The waste in the shearing device is difficult to clean, and the observation window uses explosion-proof glass, which is expensive and difficult to mass produce and apply. Utility Model Content

[0005] The purpose of the utility model is to provide a pin cutting jig with a protective function to solve the problems existing in the above-mentioned prior art.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A pin cutting jig with a protective function, comprising a transparent shield, a working platform and a cabinet, wherein the working platform is fixedly mounted on the top of the cabinet, and the working platform comprises a chassis, a tray and a top cover;

[0008] The chassis is provided with a first receiving groove, the bottom end of the chassis is fixedly connected to the work platform, a tray is placed in the receiving groove, a second receiving groove is provided on the tray, a handle is provided on one side of the tray, a top cover is provided on the tray, a plurality of through grooves are evenly provided on the top cover, and a transparent shield is fixedly installed on the periphery of the chassis;

[0009] One side of the transparent shield is completely open.

[0010] By adopting the above technical solution, you only need to stand in front of the opening of the transparent protective cover, hold the circuit board and the pin cutting equipment, and put your hand into the transparent protective cover to start the pin cutting process. The fallen pins will fall on the tray and chassis and will not splash out. The condition of the circuit board can be clearly seen through the transparent observation window. The transparent protective cover as a whole can provide effective protection when manually cutting the pins.

[0011] In a further embodiment, a plurality of through holes are provided on the periphery of the chassis, guide pillars are provided in each of the plurality of through holes, a through hole corresponding one-to-one to the guide pillars is provided on the periphery of the bottom end of the transparent shield, and the chassis is plugged and fixed to the bottom end of the transparent shield.

[0012] By adopting the above technical solution, the pin cutting device can be quickly assembled.

[0013] In a further embodiment, the transparent shield is made of polymethyl methacrylate.

[0014] By adopting the above technical solution, while ensuring the strength and transparency of the transparent shield, costs can be effectively saved, and it is also easy to machine into the required shape.

[0015] In a further embodiment, the transparent protective cover includes a first side panel, a second side panel, a back panel, a top panel and an observation panel, the back edge of the first side panel is fixedly connected to the left side of the back panel, the right edge of the back panel is fixedly connected to the back side of the second side panel, the first side panel and the second side panel are arranged parallel to each other, the periphery of the top panel is fixedly connected to the top ends of the first side panel, the second side panel and the back panel, and the front end of the top panel is hinged with an observation panel.

[0016] By adopting the above technical solution, firstly, transportation and installation are facilitated. Secondly, when the pin length of the circuit board cannot be distinguished, the pin cutting device can be closed and placed on the chassis. The observation panel can be flipped up through the hinge to check the condition of the circuit board more carefully. After confirming the length, the observation panel can be closed and the pin cutting can continue.

[0017] In a further embodiment, the front sides of the first side plate and the second side plate are both provided with avoidance holes.

[0018] By adopting the above technical solution, the size and thickness of the avoidance hole are slightly larger than an adult's arm, which allows workers to put their hands into the shearing device more conveniently and comfortably without having to hunch their shoulders.

[0019] In a further embodiment, protective gloves are bonded to the avoidance holes, and the material of the protective gloves is EPDM rubber.

[0020] By adopting the above technical solution, the protective equipment and the workplace can be effectively combined, effectively avoiding the illegal operation of some workers who do not wear labor protection equipment for the sake of convenience when cutting their feet.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. The transparent shield allows workers to observe the circuit board while cutting pins, protecting them from being hurt by flying pins.

[0023] 2. The setting of the tray and chassis can accumulate and store pins, facilitating centralized recycling and processing;

[0024] 3. The setting of the avoidance hole can facilitate workers to put their hands into the transparent shield without being restricted by the first side panel and the second side panel on the left and right sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of the utility model;

[0026] Figure 2 It is a structural diagram used to reflect the positions of the tray, chassis and cover in the utility model.

[0027] In the figure, 1. transparent protective cover; 11. first side panel; 12. second side panel; 13. back panel; 14. top panel; 15. observation panel; 16. avoidance hole; 2. working platform; 21. chassis; 22. tray; 221. handle; 23. top cover; 3. cabinet. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to 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 1In the description, the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from a particular component geometry, respectively. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this specification, "plurality" means two or more, unless otherwise specifically defined in terms of the center's direction.

[0030] Example 1:

[0031] like Figure 1-2 As shown, a pin cutting fixture with a protective function includes a transparent shield 1, a work platform 2 and a cabinet 3. The work platform 2 is fixedly installed on the top of the cabinet 3. The work platform 2 includes a chassis 21, a tray 22 and a top cover 23. The chassis 21 is provided with a first accommodating groove. The bottom end of the chassis 21 is fixedly connected to the work platform 2. A tray 22 is placed in the accommodating groove. The tray 22 is provided with a second accommodating groove. A handle 221 is provided on one side of the tray 22. A top cover 23 is provided on the tray 22. A plurality of through slots are evenly arranged on the top cover 23. A transparent shield 1 is fixedly installed on the periphery of the chassis 21. One side of the transparent shield 1 is completely open. A plurality of through holes are provided on the periphery of the chassis 21. Guide pillars are provided in the plurality of through holes. The bottom periphery of the transparent shield 1 is provided with through holes corresponding to the guide pillars one by one. The chassis 21 is plugged and fixed to the bottom end of the transparent shield 1. The cabinet door of the cabinet 3 can be opened to accommodate some devices for cutting pins. The working platform 2 at the top of the cabinet 3 is divided into three parts. The chassis 21 is fixedly connected to the working platform 2. A tray 22 is provided in the accommodating groove of the chassis 21. The tray 22 is used to hold the waste of cut pins. A handle is also provided on one side of the tray 22, which can be easily pulled out. The multiple through slots evenly arranged on the cover 23 can allow the pins cut from the circuit board to fall into the tray 22. When the circuit board accidentally falls, it will be blocked by the cover 23 and will not fall directly into the tray 22 full of pins.

[0032] like Figure 1As shown, the transparent shield 1 is made of polymethyl methacrylate, and the transparent shield 1 includes a first side panel 11, a second side panel 12, a back panel 13, a top panel 14 and an observation panel 15. The back edge of the first side panel 11 is fixedly connected to the left side of the back panel 13, and the right edge of the back panel 13 is fixedly connected to the back side of the second side panel 12. The first side panel 11 and the second side panel 12 are arranged in parallel. The periphery of the top panel 14 is fixedly connected to the top ends of the first side panel 11, the second side panel 12 and the back panel 13. The front end of the top panel 14 is hinged with the observation panel 15. The front sides of the first side panel 11 and the second side panel 12 are both provided with avoidance holes 16, and the avoidance holes 16 are bonded with Protective gloves are made of EPDM rubber and polymethyl methacrylate, which have good transparency, high material hardness, and are easy to machine. Avoidance holes 16 are provided on the first side panel 11 and the second side panel 12. This shape makes it easy for workers to put their hands into the transparent shield 1 to trim the feet to avoid bumps, and the observation panel 15 hinged on the top panel 14 can be opened and closed very conveniently. When cleaning, just open the observation panel 15 to easily wipe the inside of the transparent shield 1 to ensure its cleanliness and transparency. The protective gloves bonded to the avoidance holes are easy to use and can prevent workers' hands from being scratched by flying pins during the trimming process.

[0033] Specific implementation process:

[0034] First, open the cabinet door 3 and take out the pin cutting device, temporarily place the pin cutting device on the tray 22, put your hands into the protective gloves on both sides of the transparent protective cover 1, pick up the circuit board with one hand and the pin cutting device with the other hand, and cut the pins inside the transparent protective cover 1. During the pin cutting process, you can check the status of the circuit board through the observation plate 15 to determine which pins need to be cut off. After cutting, put the circuit board back to its original position, temporarily place the pin cutting device on the tray 22, pull your hands out of the protective gloves, put the pin cutting device back into place and the trimming is completed. When the pin waste accumulated in the tray 22 reaches a certain amount, you can hold the handle 221 to pull out the tray 22 and the top cover 23 together, and then recycle the pin waste according to the specified process, clean the tray 22 and the top cover 23, and finally install them back on the chassis 21.

[0035] In the embodiments disclosed in this utility model, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments disclosed in this utility model based on specific circumstances.

[0036] 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. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A pin cutting jig with a protective function, comprising a transparent protective cover (1), a working platform (2) and a cabinet (3), characterized in that: A working platform (2) is fixedly mounted on the top of the cabinet (3), and the working platform (2) comprises a bottom plate (21), a tray (22) and a top cover (23); The chassis (21) is provided with a first receiving groove, the bottom end of the chassis (21) is fixedly connected to the working platform (2), a tray (22) is placed in the receiving groove, a second receiving groove is provided on the tray (22), a handle (221) is provided on one side of the tray (22), a top cover (23) is provided on the tray (22), a plurality of through grooves are evenly provided on the top cover (23), and a transparent protective cover (1) is fixedly installed on the periphery of the chassis (21); One side of the transparent protective cover (1) is completely open.

2. A pin cutting jig with a protective function according to claim 1, characterized in that: The periphery of the chassis (21) is provided with a plurality of through holes, each of which is provided with a guide column, the periphery of the bottom end of the transparent protective cover (1) is provided with through holes corresponding to the guide columns one by one, and the chassis (21) is plugged and fixed to the bottom end of the transparent protective cover (1).

3. A pin cutting jig with a protective function according to claim 2, characterized in that: The transparent shield (1) comprises a first side panel (11), a second side panel (12), a rear panel (13), a top panel (14) and an observation panel (15); the rear edge of the first side panel (11) is fixedly connected to the left side of the rear panel (13); the right edge of the rear panel (13) is fixedly connected to the rear side of the second side panel (12); the first side panel (11) and the second side panel (12) are arranged in parallel; the periphery of the top panel (14) is fixedly connected to the top ends of the first side panel (11), the second side panel (12) and the rear panel (13); and the front end of the top panel (14) is hingedly connected to the observation panel (15).

4. The pin cutting jig with protective function according to claim 3, characterized in that: The front sides of the first side plate (11) and the second side plate (12) are both provided with avoidance holes (16).

5. The pin cutting jig with protective function according to claim 4, characterized in that: The material of the transparent protective cover (1) is polymethyl methacrylate.

6. A pin cutting jig with a protective function according to claim 5, characterized in that: Protective gloves are bonded to the avoidance holes (16), and the material of the protective gloves is EPDM rubber.

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