Marking tool for pluggable terminal blocks

Abstract

The utility model relates to a technical problem to be solved is provided with a kind of lettering tool for pluggable terminal block, the lettering tool is simple to operate, effectively reduce the labor intensity of the fingers of operating personnel, effectively improve product yield and overall production efficiency.The lettering tool includes fixed base plate, and the rear side of fixed base plate is provided with locating plate;The left side of locating plate is provided with first abutment plate and second abutment plate, and the upper end of first abutment plate is provided with movable presser plate, and movable carrier is set on fixed base plate, and the right end of movable presser plate is provided with pressure block by elastic structure, the lettering tool is simplified to complex two-hand finger tip cooperation action, and multiple terminal block is clamped by movable presser plate and locating plate, second abutment plate and pressure block, so as to be fixed, and each time lettering action time is shortened and stable, and adjustment and rework time is reduced, and by replacing different specifications movable carrier, the tool can be applicable to multiple models terminal block, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, specifically to a printing fixture for a pluggable terminal block. Background Technology

[0002] In the field of electrical assembly, pluggable terminal blocks (hereinafter referred to as "terminal blocks") need to be marked with information such as model, current, voltage, and number of digits for easy identification and wiring. Currently, a movable carrier with multiple terminal blocks is placed against a positioning plate, and the operator needs to use their left fingertip to press and flatten the block while their right fingertip holds it in place, using a printing pad to lower and print the characters. This operation is difficult, relies on skill and finger strength, is ergonomic, and prolonged operation can easily lead to finger fatigue and pain, resulting in high operator resistance. Quality is also inconsistent: because it is purely manual, it is difficult to keep multiple terminal blocks on the same plane at all times, easily leading to blurry, uneven, incomplete, or double-image printing, resulting in a high product defect rate. Furthermore, the complex operation and frequent positioning adjustments make printing time long, affecting overall production efficiency. Therefore, there is an urgent need for a dedicated printing fixture that can overcome the above defects. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a printing fixture for pluggable terminal blocks. This printing fixture is simple to operate, effectively reduces the labor intensity of operators' fingers, and effectively improves product yield and overall production efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is: the printing fixture for pluggable terminal block includes a fixed base plate;

[0005] An L-shaped positioning plate is provided at the rear edge of the fixed base plate;

[0006] The positioning plate is detachably provided with a first abutment plate on its left side and the two are perpendicular to each other. The lower end of the first abutment plate is in contact with the fixed base plate.

[0007] A rectangular notch is provided at the upper left side of the positioning plate;

[0008] A second abutment plate is provided inside the rectangular notch. The left and right width of the second abutment plate is greater than the left and right width of the first abutment plate, and the left surfaces of the two overlap.

[0009] The upper front side of the first abutment plate is provided with a movable pressure plate through a rotating structure and there is a gap between it and the second abutment plate. The second abutment plate is beveled at the corner on the left side of the front end.

[0010] A movable carrier is provided on the fixed base plate. The movable carrier is provided with a contour placement groove adapted to the terminal block. Multiple terminal blocks are arranged in the contour placement groove from left to right.

[0011] The left end of the movable vehicle is in contact with the first abutment plate, and the rear end of the movable vehicle is in contact with the positioning plate;

[0012] The right end of the movable pressure plate is provided with a pressure block provided by an elastic structure. Multiple terminal blocks are clamped and fixed by the movable pressure plate, the positioning plate, the second abutment plate and the pressure block.

[0013] Furthermore, the elastic structure includes a first fixing block and a second fixing block disposed on the right end face of the movable pressure plate;

[0014] The front end of the pressure block is located between the first fixed block and the second fixed block. The front end of the right end face of the pressure block is provided with a first circular groove. The bottom of the first circular groove is provided with a sliding hole and the central axes of the two coincide. The sliding hole completely penetrates the pressure block.

[0015] The right end face of the movable pressure plate is provided with a threaded hole that coincides with the central axis of the sliding hole;

[0016] A plug screw is provided in the first circular groove. The threaded end of the plug screw passes through the sliding hole and extends into the threaded hole. The head of the plug screw is located on the outside of the pressure block.

[0017] A compression spring is fitted onto the smooth part of the screw. The left end of the compression spring is fixedly located at the bottom of the first circular groove, and the right end of the compression spring is in contact with the head of the screw. In the initial state, the compression spring is in a compressed state.

[0018] Furthermore, the rotating structure includes a fixed plate disposed at the front end of the second abutment plate, and the movable pressure plate is located between the fixed plate and the first abutment plate;

[0019] The fixing plate is provided with a first through hole;

[0020] A circular hole is provided at the front end of the upper surface of the first abutment plate. The diameter of the circular hole is equal to the diameter of the first through hole and their central axes coincide.

[0021] The upper surface of the movable pressure plate is provided with a plurality of second through holes and is evenly distributed along its length direction, and the diameter of the plurality of second through holes is the same as the diameter of the first through hole.

[0022] It also includes a pin, the lower end of which passes through the first through hole and one of the second through holes in sequence and then extends into the round hole. The movable pressure plate rotates freely around the pin and slides in contact with the upper surface of the movable carrier.

[0023] Furthermore, the fixing plate is wedge-shaped and the slope of the upper end face decreases sequentially from front to back.

[0024] Furthermore, the front end face of the horizontal portion of the positioning plate is provided with a first protrusion that is adapted to the terminal block;

[0025] The rear surface of the movable pressure plate is provided with a second protrusion that is adapted to the terminal block;

[0026] When the movable pressure plate and the positioning plate clamp and fix the terminal block, the first protrusion and the second protrusion are respectively located in the grooves on the front and rear sides of the terminal block clamp.

[0027] Furthermore, the first abutment plate and the second abutment plate are integrally formed.

[0028] The beneficial effects of this utility model are as follows:

[0029] 1. Simple operation and reduced labor intensity: The complex two-finger coordination action is simplified, eliminating the risk of occupational injury. It is highly acceptable to operators and even novices can easily get started.

[0030] 2. Stable and reliable quality: Multiple terminal blocks are clamped and fixed by the movable pressure plate, positioning plate, second abutment plate and pressure block, which fundamentally eliminates defects such as blurry printing and ghosting, reducing the printing defect rate to less than 0.5% and greatly improving the product first pass rate.

[0031] 3. Significantly improved production efficiency: The printing time for each operation is shortened and stabilized, reducing adjustment and rework time, and improving overall work efficiency by more than 50%.

[0032] 4. Versatility and interchangeability: By changing the moving carrier of different specifications, this tooling can be applied to various types of terminal blocks, making it highly practical. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the printing fixture for pluggable terminal blocks described in this utility model.

[0034] Figure 2 This is a schematic diagram showing the printing fixture for pluggable terminal blocks of this utility model in the open state.

[0035] Figure 3 This is a schematic diagram of the fixed base plate, positioning plate, first abutment plate, second abutment plate, rotating structure and first convex strip combination structure described in this utility model;

[0036] Figure 4This is a schematic diagram of the combination of the fixed base plate, positioning plate, first abutment plate, second abutment plate and rotating structure described in this utility model;

[0037] Figure 5 This is a schematic diagram of the combined structure of the first abutment plate, the first fixing block, and the second fixing block described in this utility model;

[0038] Figure 6 This is an exploded view of the pressure block, plug screw, and compression spring described in this utility model;

[0039] The markings in the diagram are as follows: 1. Fixed base plate; 2. Positioning plate; 3. First abutment plate; 4. Second abutment plate; 5. Movable carrier; 6. Contour placement groove; 7. Terminal block; 8. Pressure block; 9. Elastic structure; 9. First fixing block; 901. Second fixing block; 902. Circular groove; 903. Sliding hole; 904. Threaded hole; 905. Plug screw; 906. Compression spring; 907. Rotating structure; 10. Fixed plate; 1001. Pin; 1002. First protrusion; 11. Second protrusion; 12. Movable pressure plate; 13. Second through hole; 14. Detailed Implementation

[0040] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] It should be noted that all directional indicator terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" in the embodiments of this application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. They are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0042] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0044] like Figure 1-6 As shown, the printing fixture for a pluggable terminal block includes a fixed base plate 1, which is fixedly mounted on the work platform and located below the printing head of the printing device.

[0045] An L-shaped positioning plate 2 is provided at the rear edge of the fixed base plate 1. The fixed base plate 1 and the positioning plate 2 are generally fixed with countersunk screws.

[0046] The positioning plate 2 is detachably provided with a first abutment plate 3 on its left side, and the two are perpendicular to each other. It is generally fixed by screws, but other detachable methods can also be used. There is no limitation here. The lower end of the first abutment plate 3 is in contact with the fixed base plate 1.

[0047] A rectangular notch is provided at the upper left side of the positioning plate 2;

[0048] A second abutment plate 4 is provided inside the rectangular notch. The second abutment plate 4 is connected to the positioning plate 2 by screws. The left and right width of the second abutment plate 4 is greater than the left and right width of the first abutment plate 3, and their left side surfaces overlap. The upper surface of the second abutment plate 4 is flush with the upper surface of the positioning plate 2.

[0049] The upper front side of the first abutment plate 3 is provided with a movable pressure plate 13 through the rotating structure 10 and there is a gap between it and the second abutment plate 4. The first abutment plate 3 can open and close at a certain angle in the horizontal plane. The second abutment plate 4 is beveled at the corner on the left front end. The purpose of beveling is to avoid interference and leave a certain space to ensure that the first abutment plate 3 can rotate without being interfered with.

[0050] The fixed base plate 1 is provided with a movable carrier 5, and the movable carrier 5 is provided with a contour placement groove 6 adapted to the terminal block 7. Multiple terminal blocks 7 are arranged in the contour placement groove 6 from left to right. It should be noted that there are multiple movable carriers 5. Multiple terminal blocks 7 are placed in the contour placement groove 6 before printing. When printing, it is only necessary to place multiple movable carriers 5 on the fixed base plate 1 in sequence to perform the printing operation.

[0051] When the mobile carrier 5 is placed in position, the left end of the mobile carrier 5 contacts the first abutment plate 3, and the rear end of the mobile carrier 5 contacts the positioning plate 2.

[0052] The right end of the movable pressure plate 13 is provided with a pressure block 8 provided by an elastic structure 9. Since there may be gaps between the multiple terminal blocks 7, it is necessary to squeeze the multiple terminal blocks 7 together to improve the printing yield. The multiple terminal blocks 7 are squeezed together by applying a leftward force to the pressure block 8 through the elastic structure 9. The multiple terminal blocks 7 are clamped and fixed by the movable pressure plate 13, the positioning plate 2, the second abutment plate 4 and the pressure block 8. That is, when the movable carrier 5 is placed in place, the terminal block 7 located at the leftmost end abuts against the second abutment plate 4 and there is a certain distance between it and the first abutment plate 3. The movable pressure plate 13 abuts against the multiple terminal blocks 7. At the front end, the rear ends of multiple terminal blocks 7 abut against the positioning plate 2, and the pressure block 8 abuts against the terminal block 7 located at the rightmost end. This clamps and fixes multiple terminal blocks 7, facilitating the printing operation. When placing the movable carrier 5, simply press the left end of the movable pressure plate 13 with the left thumb to rotate it clockwise around the rotating structure 10 by a certain angle, place the movable carrier 5 on the fixed plate 1001, and let the movable carrier 5 slide to the left along the notch of the positioning plate 2 until it contacts the first abutment plate 3. Then, press the right end of the movable pressure plate 13 with the right thumb to rotate it so that the movable pressure plate 13 is parallel to the positioning plate 2.

[0053] like Figure 5 , Figure 6As shown, in this embodiment, preferably, the elastic structure 9 includes a first fixing block 901 and a second fixing block 902 disposed on the right end face of the movable pressure plate 13, with the first fixing block 901 located above, the upper end face of the first fixing block 901 being flush with the upper surface of the movable pressure plate 13, and the lower end face of the second fixing block 902 being flush with the lower surface of the movable pressure plate 13.

[0054] The rear ends of the first fixing block 901, the second fixing block 902, and the movable pressure plate 13 share a U-shaped groove.

[0055] A pressure block 8 is provided between the first fixing block 901 and the second fixing block 902. That is, the pressure block 8 is set in the U-shaped groove. A circular groove 903 is provided at the front end of the right end face of the pressure block 8. A sliding hole 904 is provided at the bottom of the circular groove 903 and the central axes of the two are coincident. The diameter of the sliding hole 904 is smaller than the diameter of the circular groove 903. The sliding hole 904 completely penetrates the pressure block 8 in the left and right direction.

[0056] The right end face of the movable pressure plate 13 is provided with a threaded hole 905 that coincides with the central axis of the sliding hole 904;

[0057] A screw 906 is provided in the circular groove 903. The threaded end of the screw 906 passes through the sliding hole 904 and extends into the threaded hole 905, and the two are threadedly connected. The head of the screw 906 is located outside the pressure block 8. The diameter of the sliding hole 904 is adapted to the diameter of the smooth part of the screw 906. The smooth part of the screw 906 is located in the sliding hole 904 and can slide freely along the sliding hole 904.

[0058] A compression spring 907 is fitted onto the smooth part of the screw 906. The left end of the compression spring 907 is fixedly mounted on the bottom of the circular groove 903, and the right end of the compression spring 907 is in contact with the head of the screw 906. That is, the circumferential inner diameter of the compression spring 907 is smaller than the diameter of the head of the screw 906, so it will not detach from the head of the screw 906. In the initial state, the compression spring 907 is in a compressed state, that is, the compression spring 907 exerts a certain pushing force on the pressure block 8, causing it to contact the right end of the movable pressure plate 13. When the movable carrier 5 is placed in place, due to the connection between the terminal blocks 7... There may be gaps, making the total length of the multiple terminal blocks 7 greater than the distance between the right end of the movable pressure plate 13 and the second abutment plate 4. When the movable pressure plate 13 rotates, the pressure block 8 first contacts the terminal block 7 located at the rightmost end and is pushed out, and the compression spring 907 is compressed. When the movable pressure plate 13 rotates to be parallel with the movable carrier 5, the recovery deformation of the compression spring 907 will push the pressure block 8 to press tightly against the terminal block 7 located at the rightmost end, thereby squeezing the multiple terminal blocks 7 together so that they are close to each other, which is convenient for printing with the printing pad. This process can be completed without manual operation, effectively reducing the manual labor intensity of the workers' fingers.

[0059] like Figure 3 , Figure 4 As shown, in this embodiment, preferably, the rotating structure 10 includes a fixed plate 1001 disposed at the front end of the second abutment plate 4, and the movable pressure plate 13 is located between the fixed plate 1001 and the first abutment plate 3.

[0060] The fixing plate 1001 is provided with a first through hole;

[0061] A circular hole is provided at the front end of the upper surface of the first abutment plate 3. The diameter of the circular hole is equal to the diameter of the first through hole and their central axes coincide.

[0062] The upper end face of the movable pressure plate 13 is provided with a plurality of second through holes 14 and is evenly distributed along its length direction, and the diameter of the plurality of second through holes 14 is the same as the diameter of the first through hole.

[0063] It also includes a pin 1002, the lower end of which passes through the first through hole and one of the second through holes 14 in sequence before extending into the round hole. The movable pressure plate 13 rotates freely around the pin 1002 and slides in contact with the upper surface of the movable carrier 5. The movable pressure plate 13 is limited by the fixed plate 1001 and the first abutment plate 3 so that it can only rotate circumferentially around the pin 1002 in the horizontal plane. In addition, the distance between the pressure block 8 and the first abutment plate 3 can be adjusted by the multiple second through holes 14, so as to adapt to movable carriers 5 of different lengths and specifications, making it applicable to various models of terminal blocks 7. It can flexibly accommodate products with different numbers, different spacings, and different quantities to be printed at one time, improving practicality.

[0064] like Figure 3 , Figure 4 As shown, in this embodiment, in order to avoid the influence of the fixing plate 1001 on the pad printing head, the fixing plate 1001 is wedge-shaped and the slope of the upper end face decreases from front to back. The thickness of the rear end of the fixing plate 1001 is very small. This design will create a gap between the rear end of the fixing plate 1001 and the pad printing head, effectively avoiding the adverse effects caused by the fixing plate 1001 supporting the pad printing head.

[0065] like Figure 3 , Figure 5 As shown, in this embodiment, in order to further ensure that the upper surfaces of multiple terminal blocks 7 are on the same plane and improve the printing yield, the front end surface of the horizontal part of the positioning plate 2 is provided with a first protrusion 11 that is adapted to the terminal block 7.

[0066] The rear surface of the movable pressure plate 13 is provided with a second protrusion 12 that is adapted to the terminal block 7;

[0067] When the movable pressure plate 13 and the positioning plate 2 clamp and fix the multiple terminal blocks 7, the first protrusion 11 and the second protrusion 12 are respectively located in the grooves on the front and rear sides of the terminal block 7 clamp. By having the first protrusion 11 and the second protrusion 12 respectively locked in the grooves on the front and rear sides of the multiple terminal blocks 7 clamp, it is ensured that the upper surfaces of the multiple terminal blocks 7 are in the same plane, thereby improving the printing yield.

[0068] like Figure 4 As shown, in this embodiment, in order to further improve the stability of the device, the first abutment plate 3 and the second abutment plate 4 are integrally formed.

[0069] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An imprinting tool for a pluggable terminal block, characterized in that: Including the fixed base plate (1); An L-shaped positioning plate (2) is provided at the rear edge of the fixed base plate (1). The positioning plate (2) is detachably provided with a first abutment plate (3) on its left side and the two are perpendicular to each other. The lower end of the first abutment plate (3) is in contact with the fixed base plate (1). The positioning plate (2) has a rectangular notch on its upper left side; A second abutment plate (4) is provided inside the rectangular notch. The left and right width of the second abutment plate (4) is greater than the left and right width of the first abutment plate (3), and their left side surfaces overlap. The upper front side of the first abutment plate (3) is provided with a movable pressure plate (13) through a rotating structure (10) and there is a gap between it and the second abutment plate (4). The second abutment plate (4) is located at the corner on the left side of the front end and is beveled. The fixed base plate (1) is provided with a movable carrier (5), and the movable carrier (5) is provided with a contour placement groove (6) adapted to the terminal block (7). Multiple terminal blocks (7) are arranged in the contour placement groove (6) from left to right. The left end of the mobile carrier (5) is in contact with the first abutment plate (3), and the rear end of the mobile carrier (5) is in contact with the positioning plate (2); The right end of the movable pressure plate (13) is provided with a pressure block (8) provided by an elastic structure (9), and multiple terminal blocks (7) are clamped and fixed by the movable pressure plate (13), the positioning plate (2), the second abutment plate (4) and the pressure block (8).

2. The marking tool for a pluggable terminal block according to claim 1, characterized in that: The elastic structure (9) includes a first fixing block (901) and a second fixing block (902) disposed on the right end face of the movable pressure plate (13). The front end of the pressure block (8) is located between the first fixing block (901) and the second fixing block (902). A circular groove (903) is provided on the front end of the right end face of the pressure block (8). A sliding hole (904) is provided at the bottom of the circular groove (903) and the central axes of the two coincide. The sliding hole (904) completely penetrates the pressure block (8). The right end face of the movable pressure plate (13) is provided with a threaded hole (905) that coincides with the central axis of the sliding hole (904); A plug screw (906) is provided in the circular groove (903). The threaded end of the plug screw (906) passes through the sliding hole (904) and extends into the threaded hole (905). The head of the plug screw (906) is located on the outside of the pressure block (8). A compression spring (907) is sleeved on the smooth part of the screw (906). The left end of the compression spring (907) is fixedly set at the bottom of the circular groove (903). The right end of the compression spring (907) is in contact with the head of the screw (906). In the initial state, the compression spring (907) is in a compressed state.

3. The marking tool for a pluggable terminal block according to claim 1, characterized in that: The rotating structure (10) includes a fixed plate (1001) disposed at the front end of the second abutment plate (4), and the movable pressure plate (13) is located between the fixed plate (1001) and the first abutment plate (3); The fixing plate (1001) is provided with a first through hole; A circular hole is provided at the front end of the upper surface of the first abutment plate (3), the diameter of the circular hole is equal to the diameter of the first through hole and their central axes coincide; The upper end face of the movable pressure plate (13) is provided with a plurality of second through holes (14) and they are evenly distributed along its length direction. The diameter of the plurality of second through holes (14) is the same as the diameter of the first through hole. It also includes a pin (1002), the lower end of which passes through the first through hole and one of the second through holes (14) in sequence and then extends into the round hole. The movable pressure plate (13) rotates freely around the pin (1002) and slides in contact with the upper surface of the movable carrier (5).

4. The marking tool for a pluggable terminal block according to claim 3, characterized in that: The fixing plate (1001) is wedge-shaped and the slope of the upper end face decreases from front to back.

5. The marking tool for a pluggable terminal block according to claim 3, characterized in that: The front end face of the horizontal part of the positioning plate (2) is provided with a first protrusion (11) that is compatible with the terminal block (7). The rear surface of the movable pressure plate (13) is provided with a second protrusion (12) that is compatible with the terminal block (7). When the movable pressure plate (13) and the positioning plate (2) clamp and fix the terminal block (7), the first protrusion (11) and the second protrusion (12) are respectively located in the grooves on the front and rear sides of the terminal block (7).

6. The printing fixture for a pluggable terminal block according to claim 1, characterized in that: The first abutment plate (3) and the second abutment plate (4) are integrally formed.

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