Adjustable circuit board fixing clamp

Abstract

An adjustable circuit board fixing clamp comprises a bearing frame, two sets of movable clamps and a clamping assembly. The bearing frame comprises a bottom plate, a stand column erected on the bottom plate and an upper frame arranged at the upper end of the stand column, the upper frame is designed to be of a square frame structure, an adjusting sliding rail is arranged on the inner side of the upper frame, the two sets of movable clamps are clamped in the adjusting sliding rail respectively and oppositely arranged left and right, and the clamping assembly is erected on the bottom plate and movably connected with the bottoms of the movable clamps; the movable clamp comprises a sliding seat, a rotating rod, a lower clamping plate, a straight upper clamping plate, an arc-shaped upper clamping plate and a plurality of telescopic clamping rods. According to the utility model, the movable clamp with the straight clamping groove and the arc-shaped clamping groove is designed, and the positions of the clamping grooves are adjusted in a rotating manner, so that the fixed clamp can be used for fixedly clamping a conventional circuit board with a straight end part and also can be used for clamping and fixing a special-shaped circuit board with an arc-shaped end part, and the application range of the clamp is greatly expanded; the utility model has the advantages of strong practicability and strong popularization significance.

Description

Technical Field

[0001] The utility model relates to a circuit board processing device, in particular to an adjustable circuit board fixing fixture. Background Art

[0002] Circuit board, also known as circuit board, is an important electronic component, a support for electronic components, and a carrier for the electrical connection of electronic components. During the production and processing of circuit boards, they often need to be clamped and fixed before being subjected to operations such as welding. Otherwise, the circuit board processing is prone to deflection, which may affect the processing effect or even cause the circuit board to be scrapped.

[0003] Most of the existing circuit board fixing fixtures are two-end clamping structures. For example, Chinese patent CN202021752354.9 discloses a circuit board fixture structure. Although it has an adjustment function that can clamp and fix circuit boards of different specifications, the fixture is only suitable for circuit boards of conventional shapes with straight edges at both ends, and it is difficult to reliably clamp and fix some special-shaped circuit boards such as those with curved edges. In addition, during the use of the fixing fixture, the operation of clamping and fixing the circuit board or removing the circuit board from the fixture is cumbersome and complicated, which is not conducive to improving production efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide an adjustable circuit board fixing fixture to address the deficiencies in the prior art.

[0005] An adjustable circuit board fixing fixture comprises a carrier, two sets of movable clamps and a clamping assembly. The carrier comprises a bottom plate, a column standing on the bottom plate and an upper frame mounted on the upper end of the column. The upper frame is designed as a square frame structure with an adjustment slide rail arranged inside. The two sets of movable clamps are respectively engaged in the adjustment slide rail and are arranged opposite to each other on the left and right. The clamping assembly stands on the bottom plate and is movably connected to the bottom of the movable clamp. The movable clamp comprises a sliding seat, a rotating rod, a lower clamping plate, a straight upper clamping plate, an arc-shaped upper clamping plate and a plurality of telescopic clamping rods. The two ends of the sliding seat are respectively engaged in the adjusting slide rail and can slide left and right along the adjusting slide rail. The rotating rod is installed at the upper end of the sliding seat and can be adjusted and rotated. The lower clamp plate is fixedly installed on the upper end of the rotating rod. The left and right sides of the lower clamp plate are also respectively provided with a straight clamp groove and an arc-shaped clamp groove. The straight upper clamp plate and the arc-shaped upper clamp plate are respectively arranged above the straight clamp groove and the arc-shaped clamp groove. Several telescopic clamp rods are respectively inserted into the straight clamp groove and the arc-shaped clamp groove of the lower clamp plate. The upper ends of the several telescopic clamp rods are respectively fixedly connected with the straight upper clamp plate or the arc-shaped upper clamp plate and can drive the straight upper clamp plate or the arc-shaped upper clamp plate to move up and down.

[0006] Furthermore, the clamping assembly includes a slide post, a lifting slip ring and two sets of pull rods. The slide post is fixedly mounted on the bottom plate, the lifting slip ring is sleeved on the slide post and can be lifted and lowered, and the two ends of the two sets of pull rods are respectively connected to the lifting slip ring and the bottom of the movable clamp.

[0007] Furthermore, the movable clamp also includes a plurality of horizontal slide bars and a return spring. The horizontal slide bar is inserted into the upper frame along the left-right direction, and its inner end is fixedly connected to the sliding seat, and the return spring is sleeved on the horizontal slide bar, and its two ends are respectively pressed against the outer end of the horizontal slide bar and the outer side of the upper frame.

[0008] Furthermore, the clamping assembly also includes a limiting slip ring, which is sleeved on the sliding column and can be adjusted to rise and fall. The limiting slip ring is located below the lifting slip ring and can limit the lifting slip ring.

[0009] Furthermore, the telescopic clamping rod comprises a non-magnetic metal rod body, a permanent magnet, an electromagnet and a telescopic spring. The non-magnetic metal rod body is inserted into the lower clamping plate, the permanent magnet is fixedly mounted on the bottom end of the non-magnetic metal rod body, the electromagnet is designed in an annular structure, fixedly mounted on the bottom of the lower clamping plate and sleeved on the periphery of the non-magnetic metal rod body, the electromagnet is also arranged opposite to the permanent magnet up and down, the telescopic spring is sleeved on the upper part of the non-magnetic metal rod body, and its two ends are respectively against the upper surface of the lower clamping plate and the lower surface of the straight upper clamping plate or the arc-shaped upper clamping plate.

[0010] Furthermore, the movable clamp also includes a plurality of electrode needles, and the upper surface of the sliding seat is also provided with a plurality of electrode holes. The electrode needles are installed at the bottom of the lower clamping plate and correspond to the electrode holes up and down, and the electrode needles are also electrically connected to the electromagnet.

[0011] Furthermore, switch contacts are respectively provided at the bottom of the lifting slip ring and the top of the limiting slip ring, and the switch contacts are electrically connected to the electromagnet.

[0012] Furthermore, pressure handles are provided on both sides of the lifting slip ring.

[0013] To sum up, the beneficial effect of the adjustable circuit board fixing clamp of the utility model is that: by designing a movable clamp with a straight clamping groove and an arc-shaped clamping groove, and adjusting the position of the clamping groove by rotation, the fixing clamp can not only fix and clamp conventional circuit boards with straight ends, but also clamp and fix special-shaped circuit boards with arc-shaped ends, which greatly improves the application range of the clamp; a clamping component is also added to the clamp to cooperate with the movable clamp to clamp the circuit board, which can greatly improve the loading and unloading efficiency of the circuit board when using the clamp, thereby improving the production and processing efficiency of the circuit board; the utility model is highly practical and has a strong promotional significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of an adjustable circuit board fixing fixture of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the decomposition structure;

[0016] Figure 3 for Figure 2 Structural schematic diagram of the middle load-bearing frame;

[0017] Figure 4 for Figure 2 Schematic diagram of the exploded structure of the movable folder;

[0018] Figure 5 for Figure 4 Schematic diagram of the exploded structure of the middle telescopic clamp rod;

[0019] Figure 6 for Figure 2 Schematic diagram of the exploded structure of the clamping assembly. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] like Figures 1 to 6 As shown, the utility model provides an adjustable circuit board fixing fixture 100, which includes a carrier frame 10, two sets of movable clamps 20 and a clamping assembly 30. The carrier frame 10 includes a bottom plate 11, a column 12 standing on the bottom plate 11 and an upper frame 13 installed on the upper end of the column 12. The upper frame 13 is designed in a square frame structure, and an adjustment slide rail 131 is provided inside the upper frame 13. The two sets of movable clamps 20 are respectively engaged in the adjustment slide rail 131 and are arranged opposite to each other on the left and right sides. The clamping assembly 30 stands on the bottom plate 11 and is movably connected to the bottom of the movable clamp 20.

[0022] The movable clamp 20 includes a sliding seat 21 , a rotating rod 22 , a lower clamping plate 23 , a straight upper clamping plate 24 , an arc-shaped upper clamping plate 25 and a plurality of telescopic clamping rods 26 . The two ends of the sliding seat 21 are respectively engaged in the adjusting slide rail 131 and can slide left and right along the adjusting slide rail 131. The rotating rod 22 is installed at the upper end of the sliding seat 21 and can be adjusted and rotated. The lower clamping plate 23 is fixedly installed on the upper end of the rotating rod 22. The left and right sides of the lower clamping plate 23 are also respectively provided with a straight clamping groove 231 and an arc-shaped clamping groove 232. The straight upper clamping plate 24 and the arc-shaped upper clamping plate 25 are respectively arranged above the straight clamping groove 231 and the arc-shaped clamping groove 232. A plurality of telescopic clamping rods 26 are respectively penetrated into the straight clamping groove 231 and the arc-shaped clamping groove 232 of the lower clamping plate 23. The upper ends of the plurality of telescopic clamping rods 26 are respectively fixedly connected with the straight upper clamping plate 24 or the arc-shaped upper clamping plate 25 and can drive the straight upper clamping plate 24 or the arc-shaped upper clamping plate 25 to move up and down.

[0023] When it is necessary to use the fixing fixture to clamp and fix a conventional circuit board with straight edges at both ends, it is only necessary to turn the rotating rod 22 to drive the lower clamping plate 23 to rotate, so that the straight clamping grooves 231 of the left and right lower clamping plates 23 are arranged relative to each other. When it is necessary to clamp and fix a special-shaped circuit board with curved edges at both ends, the rotating rod 22 can be waved again to rotate the lower clamping plate 23, and finally the curved clamping grooves 232 of the left and right lower clamping plates 23 are arranged relative to each other. It can be imagined that in other embodiments, the lower clamping plate 23 can also be designed with clamping grooves of more shapes to match more specifications of special-shaped circuit boards, which are all within the protection scope of the utility model.

[0024] The clamping assembly 30 includes a slide post 31, a lifting slip ring 32 and two groups of tie rods 33. The slide post 31 is fixedly erected on the bottom plate 11, the lifting slip ring 32 is sleeved on the slide post 31 and can be movably lifted and lowered, and the two ends of the two groups of tie rods 33 are respectively axially connected to the lifting slip ring 32 and the bottom of the movable clamp 20. The clamping assembly 30 also includes a limit slip ring 34, which is sleeved on the slide post 31 and can be adjusted to lift and lower. The limit slip ring 34 is located below the lifting slip ring 32 and can limit the lifting slip ring 32. Specifically, in this embodiment, pressure handles 321 are also provided on both sides of the lifting slip ring 32.

[0025] When it is necessary to clamp and fix the circuit board, just place the circuit board between the two movable clamps 20, then apply force to the pressure handle 321 to make the lifting slip ring 32 slide downward, and the pull rod 33 will drive the movable clamps 20 on the left and right sides to move closer to the middle until the two ends of the circuit board are engaged in its clamping groove, and then the lower clamping plate 23 and the upper clamping plate of the movable clamp 20 are further limited to the two ends of the circuit board to complete the clamping and fixing operation. For circuit boards of different length specifications, the limit slip ring 34 can be set at different heights to limit the lifting slip ring 32, so that the clamping spacing of the movable clamp 20 just matches the length of the circuit board, so that the circuit board will not be over-extruded and the clamping will not be loose.

[0026] The movable clamp 20 also includes a plurality of horizontal slide bars 27 and a return spring 28. The horizontal slide bars 27 are inserted into the upper frame 13 along the left-right direction, and the inner end thereof is fixedly connected to the sliding seat 21. The return spring 28 is sleeved on the horizontal slide bars 27, and the two ends thereof are respectively abutted against the outer end of the horizontal slide bars 27 and the outer side of the upper frame 13. The design of the horizontal slide bars 27 and the return spring 28 can not only keep the sliding direction of the movable clamp 20 straight and not deflected, but also can quickly return the movable clamp 20 when the clamping assembly 30 is released, making it easier to unload the circuit board from the fixed fixture.

[0027] The telescopic clamp rod 26 includes a non-magnetic metal rod body 261, a permanent magnet 262, an electromagnet 263 and a telescopic spring 264. The non-magnetic metal rod body 261 is inserted into the lower clamp plate 23, the permanent magnet 262 is fixedly mounted on the bottom end of the non-magnetic metal rod body, the electromagnet 263 is designed in an annular structure, fixedly mounted on the bottom of the lower clamp plate 23 and sleeved on the periphery of the non-magnetic metal rod body 261, and the electromagnet 263 is also arranged opposite to the permanent magnet 262 up and down, and the telescopic spring 264 is sleeved on the upper part of the non-magnetic metal rod body 261, and its two ends are respectively against the upper surface of the lower clamp plate 23 and the lower surface of the straight upper clamp plate 24 or the arc-shaped upper clamp plate 25.

[0028] When the end of the circuit board needs to be clamped and fixed, it is only necessary to energize the electromagnet 263 to generate a magnetic field, and the direction of its magnetic pole is just opposite to the direction of the magnetic pole of the permanent magnet 262, so that a magnetic repulsion force is generated between the two, which not only compresses the telescopic spring 264, but also causes the non-magnetic metal rod 261 and the upper clamping plate to drop synchronously, and finally achieves the purpose of clamping and limiting the end of the circuit board by the upper clamping plate and the lower clamping plate 23. When the fixation is released, it is only necessary to disconnect the power of the electromagnet 263, and the elastic force of the telescopic spring 264 will lift and reset the non-magnetic metal rod 261 and the upper clamping plate, thereby releasing the clamping and fixing of the circuit board.

[0029] The movable clamp 20 further includes a plurality of electrode needles 29, and the upper surface of the sliding seat 21 is further provided with a plurality of electrode holes 211. The electrode needles 29 are mounted on the bottom of the lower clamping plate 23 and correspond to the electrode holes 211 in the upper and lower parts. The electrode needles 29 are also electrically connected to the electromagnets 263. The electromagnets 263 are energized by the electrical connection between the electrode needles 29 and the electrode holes 211. When the rotating rod 22 is turned, the electromagnets 263 at the corresponding clamping slot positions can be operated, while the circuits of other electromagnets 263 that do not need to be activated are disconnected.

[0030] The bottom of the lifting slip ring 32 and the top of the limit slip ring 34 are respectively provided with switch contacts (not shown), and the switch contacts are electrically connected to the electromagnet 263. When the lifting slip ring 32 descends to abut against the limit slip ring 34, the switch contacts at the two locations will also touch and connect the circuit of the electromagnet 263, so that the movable clamp 20 automatically clamps the end of the circuit board; and when the lifting slip ring 32 rises and separates from the limit slip ring 34, the switch contacts at the two locations will also separate to disconnect the circuit of the electromagnet 263, and finally the movable clamp 20 automatically releases the circuit board for its unloading.

[0031] In summary, the beneficial effects of the adjustable circuit board fixing clamp 100 of the utility model are: by designing a movable clamp 20 with a straight clamping groove 231 and an arc-shaped clamping groove 232, and adjusting the position of the clamping groove by rotation, the fixing clamp can not only fix and clamp conventional circuit boards with straight ends, but also clamp and fix special-shaped circuit boards with arc-shaped ends, which greatly improves the application range of the clamp; a clamping assembly 30 is also added to the clamp to cooperate with the movable clamp 20 to clamp the circuit board, which can greatly improve the loading and unloading efficiency of the circuit board when using the clamp, thereby improving the production and processing efficiency of the circuit board; the utility model is highly practical and has a strong promotional significance.

[0032] The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An adjustable circuit board fixing fixture, characterized in that: The invention comprises a bearing frame, two sets of movable clamps and a clamping assembly; the bearing frame comprises a bottom plate, a column standing on the bottom plate and an upper frame mounted on the upper end of the column; the upper frame is designed as a square frame structure, an adjusting slide rail is arranged inside the upper frame, the two sets of movable clamps are respectively engaged in the adjusting slide rail and are arranged opposite to each other on the left and right; the clamping assembly stands on the bottom plate and is movably connected to the bottom of the movable clamp; the movable clamp comprises a sliding seat, a rotating rod, a lower clamping plate, a straight upper clamping plate, an arc-shaped upper clamping plate and a plurality of telescopic clamping rods; the two ends of the sliding seat are respectively engaged in the adjusting slide rail and can be Slide left and right along the adjusting slide rail, the rotating rod is installed at the upper end of the sliding seat and can be adjusted and rotated, the lower clamp plate is fixedly installed at the upper end of the rotating rod, and the left and right sides of the lower clamp plate are respectively provided with a straight clamp groove and an arc-shaped clamp groove, the straight upper clamp plate and the arc-shaped upper clamp plate are respectively arranged above the straight clamp groove and the arc-shaped clamp groove, and a number of telescopic clamp rods are respectively inserted into the straight clamp groove and the arc-shaped clamp groove of the lower clamp plate, and the upper ends of the telescopic clamp rods are respectively fixedly connected to the straight upper clamp plate or the arc-shaped upper clamp plate and can drive the straight upper clamp plate or the arc-shaped upper clamp plate to move up and down.

2. The adjustable circuit board fixing fixture as claimed in claim 1, characterized in that: The clamping assembly includes a sliding column, a lifting slip ring and two groups of pull rods; the sliding column is fixedly mounted on the base plate, the lifting slip ring is sleeved on the sliding column and can be movably lifted and lowered, and the two ends of the two groups of pull rods are respectively connected to the bottom shafts of the lifting slip ring and the movable clamp.

3. The adjustable circuit board fixing fixture as claimed in claim 1, characterized in that: The movable clamp also includes a plurality of horizontal sliding rods and a return spring; the horizontal sliding rod is inserted into the upper frame along the left-right direction, and its inner end is fixedly connected to the sliding seat, and the return spring is sleeved on the horizontal sliding rod, and its two ends respectively abut against the outer end of the horizontal sliding rod and the outer side of the upper frame.

4. The adjustable circuit board fixing fixture as claimed in claim 2, characterized in that: The clamping assembly also includes a limiting slip ring, which is sleeved on the sliding column and can be adjusted to rise and fall. The limiting slip ring is located below the lifting slip ring and can limit the lifting slip ring.

5. The adjustable circuit board fixing fixture as claimed in claim 4, characterized in that: The telescopic clamp rod includes a non-magnetic metal rod body, a permanent magnet, an electromagnet and a telescopic spring; the non-magnetic metal rod body is inserted through the lower clamp plate, the permanent magnet is fixedly mounted on the bottom end of the non-magnetic metal rod body, the electromagnet is designed in an annular structure, which is fixedly mounted on the bottom of the lower clamp plate and sleeved on the periphery of the non-magnetic metal rod body, the electromagnet is also arranged opposite to the permanent magnet up and down, the telescopic spring is sleeved on the upper part of the non-magnetic metal rod body, and its two ends respectively abut against the upper surface of the lower clamp plate and the lower surface of the straight upper clamp plate or the arc-shaped upper clamp plate.

6. The adjustable circuit board fixing fixture as claimed in claim 5, characterized in that: The movable clamp also includes a plurality of electrode needles, and the upper surface of the sliding seat is also provided with a plurality of electrode holes; the electrode needles are installed at the bottom of the lower clamping plate and correspond to the electrode holes up and down, and the electrode needles are also electrically connected to the electromagnet.

7. The adjustable circuit board fixing fixture as claimed in claim 5, characterized in that: The bottom of the lifting slip ring and the top of the limiting slip ring are respectively provided with switch contact pieces, and the switch contact pieces are electrically connected to the electromagnet.

8. The adjustable circuit board fixing fixture as claimed in claim 2, characterized in that: Pressing handles are also provided on both sides of the lifting slip ring.

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