Adjustable jig accurate in positioning

Abstract

The utility model discloses an adjustable jig capable of accurately positioning, which belongs to the field of circuit board tin soldering jigs and comprises a mounting plate. A size adjusting mechanism for fixing circuit boards with different sizes is mounted on the mounting plate; the size adjusting mechanism comprises an up-down length adjusting mechanism and a left-right length adjusting assembly. The multiple groups of up-down length adjusting mechanisms are distributed in the mounting plate at equal intervals up and down; the left-right length adjusting assemblies are distributed in the mounting plate at equal intervals in the left-right direction. The up-down length adjusting mechanism and the left-right length adjusting assembly are connected with the mounting plate, the left-right length adjusting assembly is connected with the up-down length adjusting mechanism, the up-down length adjusting mechanism is used for adjusting and fixing the circuit board according to the up-down length of the circuit board, and the left-right length adjusting assembly is used for adjusting and fixing the circuit board according to the left-right length of the circuit board; through the above mode, circuit boards of different specifications can be fixed, and the production cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board soldering fixtures, specifically to an adjustable fixture with accurate positioning. Background Technology

[0002] Solder fixtures are used in a wide range of fields, including consumer electronics, industrial electronics, automotive electronics, photovoltaics, and wind power. With the rapid development of the electronics manufacturing industry, the demand for solder fixtures is strong, and the market size is expanding year by year. Especially driven by emerging technologies such as 5G and the Internet of Things, the demand for solder fixtures in fields such as smartphones, automotive electronics, and communication equipment continues to increase.

[0003] Chinese patent CN211102042U discloses a circuit board soldering fixture, including a base with a strip-shaped notch in the middle. A strip-shaped fixing platform is fixed in the notch. A fixing plate is fixed to the rear side of the middle of the base, and a vertically arranged sleeve is fixed on the fixing plate. The sleeve is a cylindrical structure with an open top. A guide post is fixed at the center of the sleeve. The lower part of a sliding sleeve is inserted into the cylindrical cavity inside the sleeve, and the upper end of the guide post is inserted into the central guide hole of the sliding sleeve. A spring is provided on the outside of the guide post, and the upper and lower ends of the spring are connected to the sliding sleeve and the sleeve, respectively. A pressure block is elephant trunk-shaped and fixed to the side of the upper part of the sliding sleeve. The pressure block presses against the upper part of the rear end of the fixing platform. It has the advantages of convenient use and can effectively improve the efficiency of circuit board soldering. However, this device still has the following problems:

[0004] 1. Only one circuit board can be fixed at a time, and the circuit board needs to be fixed and removed every time it is processed, which is quite time-consuming;

[0005] 2. It is impossible to fix circuit boards of different specifications, and different specifications of fixtures are required, which increases production costs.

[0006] Based on this, the present invention designs an adjustable fixture with accurate positioning to solve the above problems. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an adjustable fixture with accurate positioning.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An adjustable fixture with accurate positioning includes a mounting plate and a size adjustment mechanism;

[0010] The mounting plate is equipped with a size adjustment mechanism for fixing circuit boards of different sizes;

[0011] The size adjustment mechanism includes a vertical length adjustment mechanism and a horizontal length adjustment component; multiple sets of vertical length adjustment mechanisms are distributed vertically at equal intervals inside the mounting plate; multiple sets of horizontal length adjustment components are distributed horizontally at equal intervals inside the mounting plate; both the vertical length adjustment mechanism and the horizontal length adjustment component are connected to the mounting plate, and the horizontal length adjustment component is connected to the vertical length adjustment mechanism. The vertical length adjustment mechanism is used to adjust and fix the circuit board according to the vertical length of the circuit board, and the horizontal length adjustment component is used to adjust and fix the circuit board according to the horizontal length of the circuit board.

[0012] Furthermore, the vertical length adjustment mechanism includes vertical sliding plates and fixing screws; the vertical sliding plates are slidably connected to the left and right ends of the mounting plate, and the left and right ends of the vertical sliding plates are threadedly connected to a fixing screw through screw holes; the fixing screws abut against the mounting plate; both the vertical sliding plates and the mounting plate are provided with left and right sliding grooves; the left and right sliding grooves are connected to the left and right length adjustment components.

[0013] Furthermore, the left and right length adjustment assembly includes left and right sliding plates, a locking block, and sliding screws; the left and right sliding plates are slidably connected to the upper and lower sliding plates, and multiple sliding screws are equally spaced in the upper and lower directions on the left and right sliding plates; the left and right sliding plates are provided with upper and lower sliding grooves, and the sliding screws are slidably connected to the upper and lower sliding grooves; when the sliding screws are tightened, the sliding screws abut against the left and right sliding plates; the rear end of the sliding screws is threadedly connected to the locking block through a threaded sleeve; the locking block is slidably connected to the upper and lower sliding plates, and the sliding screws are slidably connected to the left and right sliding grooves.

[0014] Furthermore, the card block has slots for fixing the circuit board.

[0015] Furthermore, the left and right length adjustment assembly includes a synchronous adjustment assembly and a cam locking assembly; both the synchronous adjustment assembly and the cam locking structure are connected to the mounting plate, and the cam locking structure is connected to the left and right sliding plates and the left and right sliding grooves; the synchronous adjustment assembly is connected to the upper and lower sliding plates.

[0016] Furthermore, the synchronous adjustment component includes left and right sliding plates, a locking block, and a scissor bracket structure; the left and right sliding plates are provided with upper and lower sliding grooves, and the two corresponding hinge shafts in the scissor bracket structure are limited and slidably connected to the same upper and lower sliding groove; the left and right sliding plates are slidably connected to the upper and lower sliding plates; the locking block is slidably connected to the upper and lower sliding plates, and the locking block is provided with screw holes.

[0017] Furthermore, the cam locking assembly includes a rotating shaft, a cam, and a camshaft. The upper and lower ends of the rightmost left and right sliding plates are respectively slidably connected to a rotating shaft. One end of the rotating shaft is rotatably connected to the camshaft. The mounting plate has left and right sliding grooves. The other end of the rotating shaft is slidably connected to the left and right sliding grooves. The camshaft is rotatably connected to the cam, and the cam is slidably connected to the rotating shaft.

[0018] Furthermore, the mounting plate is made of plastic.

[0019] Compared with the prior art, the advantages of this utility model are: 1. This utility model can fix multiple circuit boards at one time and complete the positioning and welding of multiple circuit boards in one go, saving time;

[0020] 2. This utility model can fix circuit boards of different specifications, saving production costs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This utility model provides a three-dimensional adjustable fixture with accurate positioning. Figure 1 ;

[0023] Figure 2 This is a front view of an adjustable fixture with accurate positioning according to the present invention;

[0024] Figure 3 This is a perspective view of the mounting plate and size adjustment mechanism of this utility model;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 This is a partial perspective view of the mounting plate and size adjustment mechanism of this utility model;

[0027] Figure 6 This is a perspective view of the mounting plate and size adjustment mechanism of this utility model;

[0028] Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0029] The labels in the diagram represent:

[0030] 1. Mounting plate; 3. Size adjustment mechanism; 31. Up and down length adjustment mechanism; 311. Up and down sliding plate; 312. Fixing screw; 313. Left and right sliding groove; 32. Left and right length adjustment assembly; 321. Left and right sliding plate; 322. Locking block; 323. Sliding screw; 324. Up and down sliding groove; 325. Locking slot; 326. Scissor lift bracket structure; 327. Rotating shaft; 328. Cam; 329. Camshaft. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0033] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 An adjustable fixture with accurate positioning, including a mounting plate 1;

[0034] The mounting plate 1 is equipped with a size adjustment mechanism 3 for fixing circuit boards of different sizes;

[0035] The size adjustment mechanism 3 includes a vertical length adjustment mechanism 31 and a horizontal length adjustment component 32; multiple sets of vertical length adjustment mechanisms 31 are distributed vertically at equal intervals inside the mounting plate 1; multiple sets of horizontal length adjustment components 32 are distributed horizontally at equal intervals inside the mounting plate 1; both the vertical length adjustment mechanism 31 and the horizontal length adjustment component 32 are connected to the mounting plate 1, and the horizontal length adjustment component 32 is connected to the vertical length adjustment mechanism 31. The vertical length adjustment mechanism 31 is used to adjust and fix the circuit board according to the vertical length of the circuit board, and the horizontal length adjustment component 32 is used to adjust and fix the circuit board according to the horizontal length of the circuit board.

[0036] In this utility model, when a batch of circuit boards of different sizes need to be processed, the operator slides the up and down length adjustment mechanism 31 and the left and right length adjustment component 32 to adjust the size of the mounting plate 1 to fix the circuit boards, and then fixes multiple circuit boards in the adjusted mounting plate 1. The mounting plate 1 fixes the circuit boards at the same time, and then the fixture is placed on the welding station for welding.

[0037] The vertical length adjustment mechanism 31 includes a vertical sliding plate 311 and a fixing screw 312. The vertical sliding plate 311 is slidably connected to the left and right ends of the mounting plate 1. The left and right ends of the vertical sliding plate 311 are threadedly connected to a fixing screw 312 through screw holes. When the fixing screw 312 is tightened, it abuts against the mounting plate 1. Both the vertical sliding plate 311 and the mounting plate 1 are provided with left and right sliding grooves 313. The left and right sliding grooves 313 are connected to the left and right length adjustment components 32.

[0038] The left and right length adjustment assembly 32 includes left and right sliding plates 321, a locking block 322, and sliding screws 323. The left and right sliding plates 321 are slidably connected to the upper and lower sliding plates 311. Multiple sliding screws 323 are equally spaced in the vertical direction of the left and right sliding plates 321. The left and right sliding plates 321 are provided with upper and lower sliding grooves 324. The sliding screws 323 are slidably connected to the upper and lower sliding grooves 324. When the sliding screws 323 are tightened, they abut against the left and right sliding plates 321. The rear end of the sliding screws 323 is threadedly connected to the locking block 322. The locking block 322 is slidably connected to the upper and lower sliding plates 311, and the sliding screws 323 are slidably connected to the left and right sliding grooves 313.

[0039] The card block 322 has a card slot 325 for fixing the circuit board, which makes the fixing of the circuit board more stable;

[0040] Mounting plate 1 is made of plastic, making the fixture itself lighter.

[0041] In this invention, when processing a batch of circuit boards of different sizes, the operator places a circuit board on the upper left of the mounting plate 1, then slides the upper and lower sliding plates 311 against the lower end of the circuit board and tightens the fixing screws 312 to fix the position of the upper and lower sliding plates 311. Then, by sliding the left and right sliding plates 321 against the right end of the circuit board, the sliding block 322 makes the slot 325 hold the circuit board. Then, the sliding screws 323 are tightened to fix the position of the left and right sliding plates 321 and the slot 322. Then, the circuit boards are repeatedly placed in adjacent positions on the mounting plate 1 to adjust the position of the upper and lower sliding plates 311 and the slot 322. When all the slots 322 are adjusted, the mounting plate 1 is adjusted. When processing this batch of circuit boards, multiple circuit boards only need to be fixed by cooperating with the mounting plate 1, the upper and lower sliding plates 311, the left and right sliding plates 321 and the slots 325. The front end of the fixture is then placed upward on the welding position for welding, thus saving production costs.

[0042] Example 2: In some embodiments, such as Figure 6 and Figure 7As shown, in a preferred embodiment of this utility model, for easier adjustment of the fixture, the left and right length adjustment component 32 includes left and right sliding plates 321, a locking block 322, a scissor bracket structure 326, a rotating shaft 327, a cam 328, and a camshaft 329. The left and right sliding plates 321 have upper and lower sliding grooves 324. Two corresponding hinge shafts in the scissor bracket structure 326 are slidably connected to the same upper and lower sliding groove 324. The left and right sliding plates 321 are slidably connected to the upper and lower sliding plates 311. The locking block 322 is slidably connected to the upper and lower sliding plates 311, and has screw holes. The upper and lower ends of the rightmost left and right sliding plates 321 are rotatably connected to a rotating shaft 327. One end of the rotating shaft 327 is rotatably connected to the camshaft 329, and the other end of the rotating shaft 327 is slidably connected to the left and right sliding grooves 313. The camshaft 329 is slidably connected to the cam 328, and the cam 328 is slidably connected to the rotating shaft 327.

[0043] In this utility model, when a batch of circuit boards of different sizes need to be processed, the operator places a circuit board on the upper left end of the mounting plate 1, then slides the upper and lower sliding plates 311 against the lower end of the circuit board and tightens the fixing screws 312 to fix the position of the upper and lower sliding plates 311. Then, the clamping block 322 is moved to the required fixing position and the upper and lower sliding plates 311 are fixed in position by screws. Then, the left and right sliding plates 321 are moved against the right end of the circuit board. At this time, under the action of the scissor bracket structure 326, the distance between all the left and right sliding plates 321 is the same. Then, the cam 328 is rotated, and the cam 328 drives the rotating shaft 327 to slide in a limited position with the left and right sliding grooves 313, so that the distal end of the cam 328 replaces its proximal end to press the left and right sliding plates 321 against the mounting plate 1 to achieve the fixing effect of the board. This makes it easier to adjust the fixture to adapt to the size of the circuit board to be soldered.

[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable fixture with accurate positioning, comprising a mounting plate (1), characterized in that: It also includes a size adjustment mechanism (3); The mounting plate (1) is equipped with a size adjustment mechanism (3) for fixing circuit boards of different sizes; The size adjustment mechanism (3) includes an upper and lower length adjustment mechanism (31) and a left and right length adjustment component (32); multiple sets of upper and lower length adjustment mechanisms (31) are distributed at equal intervals in the upper and lower parts of the mounting plate (1); multiple sets of left and right length adjustment components (32) are distributed at equal intervals in the left and right parts of the mounting plate (1); both the upper and lower length adjustment mechanism (31) and the left and right length adjustment component (32) are connected to the mounting plate (1), and the left and right length adjustment component (32) is connected to the upper and lower length adjustment mechanism (31). The upper and lower length adjustment mechanism (31) is used to adjust and fix the circuit board according to the upper and lower length of the circuit board, and the left and right length adjustment component (32) is used to adjust and fix the circuit board according to the left and right length of the circuit board.

2. The adjustable fixture with accurate positioning according to claim 1, characterized in that, The upper and lower length adjustment mechanism (31) includes an upper and lower sliding plate (311) and a fixing screw (312); the upper and lower sliding plate (311) is slidably connected to the left and right ends of the mounting plate (1), and the left and right ends of the upper and lower sliding plate (311) are threadedly connected to a fixing screw (312) through screw holes; the fixing screw (312) abuts against the mounting plate (1); the upper and lower sliding plate (311) and the mounting plate (1) are both provided with left and right sliding grooves (313); the left and right sliding grooves (313) are connected to the left and right length adjustment components (32).

3. The adjustable fixture with accurate positioning according to claim 2, characterized in that, The left and right length adjustment component (32) includes left and right sliding plates (321), a locking block (322), and sliding screws (323). The left and right sliding plates (321) are slidably connected to the upper and lower sliding plates (311). Multiple sliding screws (323) are equally spaced in the upper and lower directions of the left and right sliding plates (321). The left and right sliding plates (321) are provided with upper and lower sliding grooves (324). The sliding screws (323) are slidably connected to the upper and lower sliding grooves (324). When the sliding screws (323) are tightened, they abut against the left and right sliding plates (321). The rear end of the sliding screws (323) is threadedly connected to the locking block (322) through a threaded sleeve. The locking block (322) is slidably connected to the upper and lower sliding plates (311), and the sliding screws (323) are slidably connected to the left and right sliding grooves (313).

4. The adjustable fixture with accurate positioning according to claim 3, characterized in that, The card block (322) has a slot (325) for fixing the circuit board.

5. The adjustable fixture with accurate positioning according to claim 2, characterized in that, The left and right length adjustment component (32) includes a synchronous adjustment component and a cam locking component; both the synchronous adjustment component and the cam locking structure are connected to the mounting plate (1), and the cam locking structure is connected to the left and right sliding plates (321) and the left and right sliding grooves (313); the synchronous adjustment component is connected to the upper and lower sliding plates (311).

6. The adjustable fixture with accurate positioning according to claim 5, characterized in that, The synchronous adjustment component includes a left and right sliding plate (321), a locking block (322), and a scissor bracket structure (326); the left and right sliding plate (321) is provided with an upper and lower sliding groove (324), and the two corresponding hinge shafts in the scissor bracket structure (326) are limited and slidably connected to the same upper and lower sliding groove (324); the left and right sliding plate (321) is slidably connected to the upper and lower sliding plate (311); the locking block (322) is slidably connected to the upper and lower sliding plate (311), and the locking block (322) is provided with a screw hole.

7. The adjustable fixture with accurate positioning according to claim 6, characterized in that, The cam locking assembly includes a rotating shaft (327), a cam (328), and a camshaft (329). The upper and lower ends of the rightmost left and right sliding plates (321) are slidably connected to a rotating shaft (327) respectively. One end of the rotating shaft (327) is rotatably connected to the camshaft (329). The mounting plate (1) is provided with left and right sliding grooves (313). The other end of the rotating shaft (327) is limited and slidably connected to the left and right sliding grooves (313). The camshaft (329) is rotatably connected to the cam (328), and the cam (328) is slidably connected to the rotating shaft (327).

8. The adjustable fixture with accurate positioning according to claim 4, characterized in that, The mounting plate (1) is made of plastic.

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