A circuit board fixture

Abstract

The invention discloses a circuit board fixture, and relates to the technical field of PCB processing. The invention comprises a double-sided base, and a double-sided side plate detachably mounted on one side of the double-sided base; a plurality of first grooves A are arranged at equal intervals on one surface of the double-sided base, and a plurality of second grooves A are arranged at equal intervals on the other surface; the double-sided base and the double-sided side plate are both plastic injection molded parts, and the bottom sides of the first groove A and the second groove A are both provided with through drainage holes; the two sides of the double-sided side plate are respectively provided with a first groove B matched with the first groove A, and a second groove B matched with the second groove A, and the first groove A and the second groove A have different widths. The invention places PCB boards by respectively arranging grooves of different widths on both sides of the double-sided base, and each groove is suitable for placing PCB boards of a certain thickness range, thereby controlling the corresponding side of the double-sided base to face upward according to the thickness of the PCB board, thereby achieving the placement of PCB boards of different thicknesses.

Description

Technical Field

[0001] The invention belongs to the technical field of PCB processing, and in particular relates to a circuit board tooling frame. Background Art

[0002] PCB (Printed Circuit Board), Chinese name is printed circuit board, also known as printed circuit board, is an important electronic component, the support of electronic components, and the carrier for electrical connection of electronic components. In the production process of PCB boards, PCB boards are often placed on a placement rack. The surface of PCB boards is often treated in the electroplating solution. Due to its porosity, it absorbs a certain amount of solution and water. Therefore, PCB boards cannot be placed directly on top of each other during placement. It is necessary to drain any water that may be on them during the placement process.

[0003] For example, China Publication No. CN214650448U discloses a PCB board placement rack, comprising a base frame, a backing plate and an adjustment component, the backing plate is arranged on the base frame, the base frame and the backing plate are in an L-shaped structure, a protective plate is arranged on the base frame, the adjustment component comprises an adjustment plate, a connecting plate and a fixing component, both ends of the adjustment plate are provided with connecting plates, and the connecting plates are connected to the protective plates through the fixing component; and China Publication No. CN207487289U discloses a PCB placement board rack, comprising two opposite board rack bodies, the two board rack bodies are connected by a horizontal adjustment rod, the board rack body comprises a rectangular frame, and a plurality of vertically arranged positioning grooves fixed on the rectangular frame, the rectangular frame comprises a horizontally arranged bottom rod, a top rod parallel to the bottom rod and arranged above the bottom rod, two side rods for connecting the top rod and the bottom rod, and four rotating shafts, the two ends of the top rod are connected to the upper ends of the side rods through the rotating shafts, the two ends of the bottom rod are connected to the lower ends of the side rods through the connecting rotating shafts, and the side rods can be tilted or vertically arranged in coordination with the rotation of the rotating shafts. When the above-mentioned placement racks are used, the width of the positioning grooves for clamping the PCB boards is rated to be non-adjustable, so they can only store PCB boards within a certain thickness range. The thickness range of existing PCB boards is mostly between 30-140μm, and the thickness span is relatively large. Therefore, the existing PCB board placement racks cannot meet the actual use. Summary of the invention

[0004] The purpose of the present invention is to provide a circuit board fixture rack, in which PCB boards are placed by arranging grooves of different widths on both sides of a double-sided base, each groove is suitable for placing PCB boards within a certain thickness range, thereby controlling the corresponding side of the double-sided base to face upward according to the thickness of the PCB board, solving the problem that the existing PCB board placement rack cannot well meet the requirements of different thicknesses when in use.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a circuit board fixture rack, comprising a double-sided base, and a double-sided side plate detachably mounted on one edge of the double-sided base; a plurality of first grooves A are arranged at equal intervals on one surface of the double-sided base, and a plurality of second grooves A are arranged at equal intervals on the other surface; the double-sided base and the double-sided side plate are both plastic injection molded parts, and the bottom sides of the first groove A and the second groove A are both provided with penetrating drainage holes; the two sides of the double-sided side plate are respectively provided with a first groove B matched with the first groove A, and a second groove B matched with the second groove A; the widths of the first groove A and the first groove B are both L1, the widths of the second groove A and the second groove B are both L2, and L1<L2.

[0007] Furthermore, the first groove A and the second groove A are arranged alternately; the thickness of the double-sided base is H0, the depths of the first groove A and the second groove A are H1 and H2 respectively, then H1+H2<H0; and the distance between the second groove A and the second groove B is L0, then L0>1 / 2.

[0008] Furthermore, a pair of insertion rods are provided on the bottom side of the double-sided side panel, and the two insertion rods are respectively located at the two ends of the double-sided side panel; a slot for inserting the insertion rod and a locking bolt A for fixing the insertion rod in the slot are provided on one edge side of any surface of the double-sided base.

[0009] Furthermore, a plurality of protrusions are provided at equal intervals on any side surface of the double-sided side plate, and a second groove B or a second groove A is provided on the protrusions, and a second groove B or a second groove A is provided in the area formed by the two protrusions.

[0010] Furthermore, a pair of connecting rods located on both sides are connected between the double-sided base and the double-sided base, and a plug column is provided at each end of the connecting rod, and the end of the plug column is connected to a first magnet; the two ends of the double-sided base and the double-sided side panel are respectively provided with a socket A and a socket B for inserting the plug column, and the bottom of the socket A and the socket B are fixed with a second magnet that cooperates with the first magnet.

[0011] Furthermore, the double-sided base includes a middle section located in the middle, and a first movable section and a second movable section are respectively connected to both sides of the middle section; the top of the double-sided side panel is telescopically connected with an extension section; wherein two connecting rods and a plurality of guide rods are respectively arranged on both sides of the middle section, and the first movable section and the second movable section are respectively provided with a blind hole A and a blind hole B for inserting the connecting rod and the guide rod, and both ends of the first movable section and the second movable section are respectively provided with a locking bolt B for fixing the connecting rod inserted into the blind hole A; and the two sockets A are respectively arranged at both ends of the middle section; and the first movable section and the second movable section located at the end of the blind hole A are both provided with an movable cavity with a circular cross-section, and the end of the connecting rod is provided with a limit block sliding along the inner wall of the movable cavity.

[0012] Furthermore, at least two pillars are provided at the bottom of the extension portion, and a groove for inserting the pillars is provided at the top end surface of the double-sided side panel, and the cross-sections of the pillars and the grooves are both square; wherein a threaded hole is provided at the bottom of the groove, and a stud with a "X" or "I" screwdriver groove at the end is provided at the threaded hole; when the pillar is inserted into the groove, the end of the pillar abuts against the top end surface of the stud; and a locking bolt C for fixing the pillar inserted into the groove is also provided at each end of the double-sided side panel.

[0013] Furthermore, the first groove A and the second groove A have the same structure, both comprising a rectangular groove with one end protruding from the edge of the double-sided base; a strip-shaped side panel is provided on at least one inner side wall of the rectangular groove, a fixing portion is provided at one end of the side panel, a fixing bolt is provided on the fixing portion, an L-shaped clip is provided at the other end of the side panel, an L-shaped snap-in that cooperates with the L-shaped clip is provided on the inner side wall of the rectangular groove; and a threaded hole that cooperates with the fixing bolt is provided on the end surface of the double-sided base at the end of the rectangular groove.

[0014] Furthermore, four pads are arranged on the circumferential side of the double-sided base, and the four pads are installed on the double-sided base in a rectangular distribution; the pad includes a U-shaped block body, and elastic deformation layers are arranged on the two opposite inner walls of the U-shaped block body, and elastic shock-absorbing pad layers are respectively arranged on the two side walls of the U-shaped block body.

[0015] The present invention has the following beneficial effects:

[0016] The present invention places PCB boards by arranging grooves of different widths on both sides of the double-sided base, and each groove is suitable for placing PCB boards within a certain thickness range, so that the corresponding side of the double-sided base is controlled to be arranged upward according to the thickness of the PCB board, thereby meeting the requirements of placing PCB boards of different thicknesses, avoiding a large difference between the thickness of the PCB board and the width of the groove, and avoiding the PCB board from shaking violently during the movement after placement.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of a tooling frame according to Embodiment 1 of the present invention;

[0020] Figure 2 This is an assembly diagram of the parts of the tooling frame of Example 1 of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the tooling frame of Example 3 of the present invention;

[0022] Figure 4 It is a schematic diagram of the connecting rod structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the blind hole A in Example 4 of the present invention;

[0025] Figure 7 This is a schematic diagram of the groove structure of Example 4 of the present invention;

[0026] Figure 8 This is a schematic diagram of the double-sided base structure of Example 5 of the present invention;

[0027] Fig. 9 for Figure 8 A partial enlarged view of the middle part;

[0028] Fig.10 for Figure 8 A partial enlarged view of point B in the middle;

[0029] Fig.11 This is a schematic diagram of the structure of the tooling frame of Example 6 of the present invention;

[0030] Fig.12 This is a schematic diagram of the cushion block structure of Example 6 of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] Example 1

[0034] like Figure 1-2 A circuit board fixture frame comprises a double-sided base 1 and a double-sided side plate 2 detachably mounted on one side of the double-sided base 1; a plurality of first grooves A11 are arranged at equal intervals on one surface of the double-sided base 1, and a plurality of second grooves A12 are arranged at equal intervals on the other surface thereof; the double-sided base 1 and the double-sided side plate 2 are both plastic injection molded parts, and the bottom sides of the first grooves A11 and the second grooves A12 are both provided with through drainage holes; the two sides of the double-sided side plate 2 are respectively provided with a first groove B21 matched with the first groove A11, and a second groove B22 matched with the second groove A12; the widths of the first grooves A11 and B21 are both 80 μm, and the widths of the second grooves A12 and B22 are both 140 μm.

[0035] Therefore, in the above description, the first groove A11 with a width of 80 μm is suitable for placing a PCB board with a thickness less than 75 μm, and the first groove A11 with a width of 140 μm is suitable for placing a PCB board with a thickness less than 135 μm and greater than 75 μm.

[0036] At the same time, on the basis of the above, the first groove A11 and the second groove A12 located on both sides of the double-sided base 1 are staggered, and the second groove B22 and the first groove B21 located on both sides of the double-sided side panel 2 are staggered; when the thickness of the double-sided base 1 is 4 cm, the depths of the first groove A11 and the second groove A12 are 1.3 cm and 1.7 cm respectively, and the distance between the second groove A12 and the second groove B22 is 3 cm.

[0037] In the above, in order to facilitate the assembly of the double-sided side panel 2 and the double-sided base 1, an insertion rod 201 is respectively provided at both ends of the bottom side surface of the double-sided side panel 2, and two slots 101 for inserting the insertion rod 201 are respectively provided on one side of the upper surface and one side of the lower surface of the double-sided base 1, and locking bolts A102 are also provided to fix the insertion rod 201 in the slot 101; during installation, the insertion rod 201 is controlled to be inserted into the corresponding slot 101, and the direction of the double-sided side panel 2 and the double-sided base 1 is controlled to meet the thickness requirement of the composite PCB board, and the locking bolts A102 can be locked after insertion. At this time, the double-sided side panel 2 and the double-sided base 1 are in an L-shaped structure, and the cooperation of the double-sided base 1 and the double-sided side panel 2 is utilized to realize the storage and support of the PCB.

[0038] Embodiment 2, based on embodiment 1:

[0039] like Figure 1 , protrusions 200 are arranged at equal intervals on both side surfaces of the double-sided side panel 2, and a second groove B22 or a second groove A12 is arranged on the protrusion 200, and the second groove B22 or the second groove A12 is arranged in the area formed by the two protrusions 200. When the PCB board is placed on the tooling rack, one end of the PCB board is alternately extended, which is convenient for subsequent users to take and place the PCB board, and avoids fingers accidentally touching the PCB boards on both sides when taking the PCB board in the middle.

[0040] Embodiment 3, based on embodiment 1:

[0041] like Figure 3-4 As shown, a pair of connecting rods 3 connecting the double-sided base 1 and the double-sided base 1 are also provided, and the two connecting rods 3 are respectively installed at the two end positions of the tooling frame, the connecting rod 3 is a strip rod, and a plug column 31 is respectively provided at both ends thereof, and the end of the plug column 31 is connected to a first magnet 32; at the same time, a socket A and a socket B for inserting the plug column 31 are respectively provided at both ends of the double-sided base 1 and the double-sided side plate 2, and a second magnet cooperating with the first magnet 32 ​​is provided at the bottom of the socket A and the socket B. During installation, the second magnet and the first magnet 32 ​​generate a magnetic attraction effect, so that the connecting rod 3 is prevented from falling off due to accidental contact or other abnormal operations after installation, and the plug column 31 is located in the cylindrical structure, and the magnetic effect is utilized to facilitate installation and disassembly.

[0042] Embodiment 4, based on embodiment 1, embodiment 2, or embodiment 3:

[0043] like Figure 5As shown, in order to facilitate the storage of PCB boards of different widths and heights, the double-sided base 1 is configured to be retractable in the present invention. Specifically, the double-sided base 1 is configured to include a middle section 1a located in the middle, and a first movable section 1b and a second movable section 1c arranged on both sides of the middle section 1a; at the same time, an extension portion 24 is retractably connected to the top of the double-sided side panel 2.

[0044] In actual installation, when the double-sided side panel 2 is installed on the second movable section 1c, the second movable section 1c is controlled to contact the middle section 1a, and the first movable section 1b is controlled to be pulled outward by a certain length to meet the needs of PCB boards of different widths.

[0045] At the same time, two connecting rods 103 and multiple guide rods 104 are respectively arranged on both sides of the middle section 1a, and blind holes A105 and blind holes B106 for inserting the connecting rods 103 and the guide rods 104 are respectively arranged on the first movable section 1b and the second movable section 1c. When assembling, the connecting rods 103 and the guide rods 104 are controlled to be inserted into the blind holes A105 and the blind holes B106 arranged on the first movable section 1b and the second movable section 1c, and the locking bolts B107 are rotated to lock them.

[0046] At the same time Figure 6 A circular movable cavity 108 is provided inside the first movable segment 1b and the second movable segment 1c at the end of the blind hole A105, and a limit block 109 is provided at the end of the connecting rod 103 to slide along the inner wall of the movable cavity 108. The maximum pulling distance of the first movable segment 1b and the second movable segment 1c is controlled by setting the limit block 109, that is, the maximum distance between the movable segment and the middle segment 1a is controlled.

[0047] like Figure 7 , two pillars 241 are provided at the bottom of the extension part 24, and a groove 202 for inserting the pillar 241 is provided on the top surface of the double-sided side panel 2, and the cross-sections of the pillar 241 and the groove 202 are both square; a threaded hole 205 is provided at the bottom of the groove 202, and a stud 203 with a "cross" screwdriver groove 204 at the end is provided at the threaded hole. When in use, according to the installation height requirement of the extension part 24, the height of the stud 203 in the groove 202 is first adjusted by a screwdriver; then the pillar 241 is inserted into the groove 202, at this time, the end of the pillar 241 abuts against the top end surface of the stud 203, and finally the locking bolts C205 arranged at both ends of the double-sided side panel 2 are controlled to lock and fix the pillar 241 inserted into the groove 202.

[0048] In the present invention, the first groove A11 and the second groove A12 have the same structure, and both include a rectangular groove with one end extending out from the edge of the double-sided base 1 .

[0049] Embodiment 5, based on Embodiment 1, Embodiment 2, Embodiment 3, or Embodiment 4:

[0050] like Figure 8-10 A fixing structure for installing the side panel 5 is provided on the two inner side walls of the rectangular groove. The side panel is a strip structure. A fixing portion 51 is provided at one end of the side panel 5, and a fixing bolt 52 is provided on the fixing portion 51. An L-shaped clamping plate 53 is provided at the other end of the side panel 5; the fixing structure includes an L-shaped bayonet 111 arranged on the inner side wall of one end of the rectangular groove and matched with the L-shaped clamping plate 53; and a threaded hole matched with the fixing bolt 52 is provided on the end surface of the double-sided base 1 located at the end of the rectangular groove; at the same time, the thickness of the side panel 5 is 10μm; when in use, it is convenient to reduce the width of the first groove A11 to 60μm or 70μm, or reduce the width of the second groove A12 to 120μm or 130μm.

[0051] Embodiment 6, as Figure 11-12 On the basis of any one of the above-mentioned embodiments 1-5, four pads 4 can be arranged on the peripheral side of the double-sided base 1 to support the double-sided base 1 so that it is in a suspended state, and the four pads 4 are installed on the double-sided base 1 in a rectangular distribution; the pad 4 includes a U-shaped block body 41, and elastic deformation layers 42 are arranged on the two opposite inner side walls of the U-shaped block body 41, and elastic shock-absorbing cushion layers 43 are respectively arranged on the two side walls of the U-shaped block body 41. The elastic shock-absorbing cushion layers 43 are made of rubber layers. The setting of the rubber layer not only increases the friction between the tooling frame and the table top, but also prevents the tooling frame from sliding off the table top due to tilting or shaking of the table top after being placed on the table top. At the same time, the use of flexible materials makes it convenient to handle and place with care, reduce noise and damage to the tooling frame caused by misoperation.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A circuit board fixture, characterized in that: It comprises a double-sided base (1), and a double-sided side panel (2) detachably mounted on one side of the double-sided base (1); Wherein, a plurality of first grooves A (11) are arranged at equal intervals on one surface of the double-sided base (1), and a plurality of second grooves A (12) are arranged at equal intervals on the other surface thereof; The two side surfaces of the double-sided side plate (2) are respectively provided with a first groove B (21) matched with the first groove A (11), and a second groove B (22) matched with the second groove A (12); The widths of the first groove A (11) and the first groove B (21) are both L1, the widths of the second groove A (12) and the second groove B (22) are both L2, and L1<L2; A pair of connecting rods (3) are connected between the double-sided base (1) and the double-sided base (1) and are located on both sides respectively. An insertion column (31) is provided at each end of the connecting rod (3), and the end of the insertion column (31) is connected to a first magnet (32); The two ends of the double-sided base (1) and the double-sided side plate (2) are respectively provided with a socket A and a socket B for inserting the plug post (31), and a second magnet cooperating with the first magnet (32) is fixed at the bottom of each of the socket A and the socket B.

2. A circuit board fixture according to claim 1, characterized in that: The first grooves A (11) and the second grooves A (12) are arranged alternately; the thickness of the double-sided base (1) is H0, the depths of the first grooves A (11) and the second grooves A (12) are H1 and H2 respectively, and H1+H2<H0; And the distance between the second groove A (12) and the second groove B (22) is L0, then L0>1 / 2(L1+L2).

3. A circuit board fixture according to claim 1, characterized in that: A pair of insertion rods (201) are provided on the bottom side of the double-sided side plate (2), and the two insertion rods (201) are respectively located at the two ends of the double-sided side plate (2); a slot (101) for inserting the insertion rod (201) and a locking bolt A (102) for fixing the insertion rod (201) in the slot (101) are provided on one edge of any surface of the double-sided base (1).

4. A circuit board fixture according to claim 1, characterized in that: A plurality of protrusions (200) are arranged at equal intervals on any side surface of the double-sided side plate (2), and a second groove B (22) or a second groove A (12) is arranged on the protrusion (200), and a second groove B (22) or a second groove A (12) is arranged in an area formed by two protrusions (200).

5. The circuit board fixture according to claim 1, characterized in that: The double-sided base (1) comprises a middle section (1a) located in the middle, and two sides of the middle section (1a) are respectively connected to a first movable section (1b) and a second movable section (1c); The top of the double-sided side panel (2) is telescopically connected with an extension portion (24); Two connecting rods (103) and a plurality of guide rods (104) are respectively arranged on both sides of the middle section (1a); a blind hole A (105) and a blind hole B (106) for inserting the connecting rod (103) and the guide rod (104) are respectively arranged on the first movable section (1b) and the second movable section (1c); locking bolts B (107) for fixing the connecting rod (103) inserted into the blind hole A (105) are respectively arranged at both ends of the first movable section (1b) and the second movable section (1c); The two jacks A are respectively arranged at two ends of the middle section (1a); A movable cavity (108) with a circular cross-section is provided inside the first movable section (1b) and the second movable section (1c) located at the end of the blind hole A (105), and a limit block (109) is provided at the end of the connecting rod (103) for sliding along the inner wall of the movable cavity (108).

6. A circuit board fixture according to claim 5, characterized in that: The bottom of the extension portion (24) is provided with at least two pillars (241), the top end surface of the double-sided side plate (2) is provided with a groove (202) for inserting the pillars (241), and the cross-sections of the pillars (241) and the groove (202) are both square; Wherein, a threaded hole is arranged at the bottom of the groove (202), and a stud (203) having a "X" or "I" screwdriver groove at the end is arranged at the threaded hole; When the support (241) is inserted into the groove (202), the end of the support (241) abuts against the top end surface of the stud (203); Furthermore, a locking bolt C (205) for fixing the support column (241) inserted into the groove (202) is provided at each end of the double-sided side plate (2).

7. A circuit board fixture according to any one of claims 1 to 5, characterized in that: The double-sided base (1) and the double-sided side panels (2) are both plastic injection molded parts, and the bottom sides of the first groove A (11) and the second groove A (12) are both provided with penetrating drainage holes.

8. A circuit board fixture according to any one of claims 1 to 5, characterized in that: The first groove A (11) and the second groove A (12) have the same structure, and both comprise a rectangular groove with one end extending out from the edge of the double-sided base (1); A strip-shaped side plate (5) is arranged on at least one inner side wall of the rectangular groove, a fixing portion (51) is arranged on one end of the side plate (5), a fixing bolt (52) is arranged on the fixing portion (51), an L-shaped clamping plate (53) is arranged on the other end of the side plate (5), and an L-shaped clamping port (111) matched with the L-shaped clamping plate (53) is arranged on the inner side wall of the rectangular groove; A threaded hole cooperating with a fixing bolt (52) is arranged on the end surface of the double-sided base (1) at the end of the rectangular groove.

9. A circuit board fixture according to any one of claims 1 to 5, characterized in that: Four cushion blocks (4) are arranged on the circumference of the double-sided base (1), and the four cushion blocks (4) are installed on the double-sided base (1) in a rectangular distribution; The cushion block (4) comprises a U-shaped block body (41), two opposite inner side walls of the U-shaped block body (41) are provided with elastic deformation layers (42), and two side walls of the U-shaped block body (41) are provided with elastic shock-absorbing cushion layers (43).

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