Correction tool suitable for deformed PCB

Abstract

The utility model relates to the technical field of PCB correction equipment, in particular to a correction tool suitable for a deformed PCB, which comprises a working table and a correction jig arranged at the upper end of the working table, a cavity is formed in the middle end of the correction jig, a first correction groove is formed in the upper end face of the correction jig and located at the upper end of the cavity, and a second correction groove is formed in the lower end face of the correction jig. And the correction jig is provided with a second correction groove at the lower end of the cavity. PCBs are fixed in the first correction groove and the second correction groove through bolts, then a heating pipe is started for heating, the temperature of a heat collection cylinder is increased, a second motor is periodically started to rotate forwards and backwards, the heat collection cylinder moves along the interior of a cavity along with a ball screw sleeve, heat is transferred to the correction jig, the PCBs placed in the first correction groove and the second correction groove are gradually softened, and the correction effect is achieved. In the process, a worker observes the deformation condition of the PCB, adjusts the tightness of the bolt, corrects the PCB, then closes the heating pipe, waits for cooling of the PCB, and can complete correction of the PCB after cooling of the PCB is finished.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB correction equipment technical field especially relates to a kind of correction tool suitable for PCB after deformation. BACKGROUND

[0002] Printed circuit board (PCB circuit board), also known as printed circuit board, is the provider of electrical connection of electronic components, its design is mainly layout design, the main advantage of using circuit board is to greatly reduce wiring and assembly error, improve automation level and production labor.

[0003] PCB one side exists large-area blank area and is not arranged component, the other side component is relatively dense, component distribution is uneven, process edge is designed on short side, only short side bearing over track can be used during production, PCB gravity center is at product center BGA, copper area design of PCB corresponding layer is not balanced, such PCB product characteristics lead to its prone to deformation problem, PCB product has a large number of BGA and other special devices, if PCB board deformation problem is not solved, PCB exists potential quality risk such as virtual welding, short circuit after welding. UTILITY MODEL CONTENT

[0004] In order to overcome the defects of the prior art pointed out above, the present inventors have made in-depth research thereon, and after a lot of creative labor, the utility model is completed.

[0005] Specifically, the technical problem to be solved by the utility model is to provide a correction tool suitable for PCB after deformation, to solve the technical problem that the existing PCB product characteristics lead to its prone to deformation, and if the PCB board deformation problem is not solved, the PCB exists potential quality risk such as virtual welding, short circuit after welding.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A correction tool suitable for PCB after deformation, comprising a workbench and a correction jig arranged on the upper end of the workbench, a cavity is formed in the middle end of the correction jig, a first correction groove is formed in the upper end face of the correction jig above the upper end of the cavity, a second correction groove is formed in the lower end of the correction jig, a plurality of sets of threaded holes are formed in one end of the first correction groove and the second correction groove close to the cavity, a bolt is threadedly inserted into the middle end of the threaded hole, a heating assembly is arranged in the cavity, the heating assembly comprises a second motor fixedly arranged on one end of the outer wall of the correction jig, a ball screw is connected to the output end of the second motor, a ball screw sleeve is sleeved on the outer wall of the ball screw, a heat collecting cylinder is arranged on one side of the ball screw sleeve, a plurality of sets of heating pipes are arranged in the heat collecting cylinder.

[0008] As an improved technical scheme, the first correction groove and the second correction groove can place different models of PCBs.

[0009] As an improved technical scheme, mounting holes are formed on the PCB, the bolt and the mounting hole formed on the PCB are completely corresponding and matched, and the lower end of the bolt can be threadedly inserted into the threaded hole.

[0010] As an improved technical scheme, the first correction groove and the second correction groove are both provided with a square groove penetrating one end close to the cavity, and the square groove and the cavity are in communication.

[0011] As an improved technical scheme, the two groups of rotating shafts are symmetrically and fixedly connected to the two ends of the outer wall of the correction jig, and one end of the rotating shaft away from the correction jig is rotationally connected to the workbench.

[0012] As an improved technical scheme, the first motor is fixedly connected to one end of the outer wall of the workbench, the first motor is connected with a pinion gear, the pinion gear is provided with a gear wheel on one side, the pinion gear and the gear wheel are in meshing, and the gear wheel is fixedly sleeved on the outer wall of one of the rotating shafts.

[0013] As an improved technical scheme, the heating assembly further comprises a sliding rod fixedly arranged on the inner wall of the cavity, a sliding sleeve movably sleeved on the outer wall of the sliding rod, and the sliding sleeve and the ball screw are rotationally connected to the outer walls of both ends of the heat collecting cylinder.

[0014] As an improved technical scheme, the correction jig is made of aluminum alloy.

[0015] After the above technical scheme is adopted, the beneficial effects of the present application are as follows:

[0016] 1. In the present application, the PCB is fixed into the first correction groove and the second correction groove through the bolt, then the heating pipe is started to heat, the temperature of the heat collecting cylinder is raised, the second motor is periodically started to rotate forward and reverse, the heat collecting cylinder moves along the inside of the cavity with the ball screw, and the heat is transferred to the correction jig, so that the PCB placed in the first correction groove and the second correction groove is gradually softened.

[0017] 2. The utility model discloses, in the process of placing the PCB board, can start first motor and drive pinion rotation, pinion drive gear rotation, gear drive calibration fixture open first correction groove and second correction groove upwards horizontal placement, both can conveniently install the PCB, also can conveniently observe the deformation condition of PCB, thereby convenient subsequent correction. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced the drawing needed to be used in the embodiment description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings. Wherein:

[0019] Figure 1 It is the overall three-dimensional structure schematic diagram of the correction tool suitable for the deformation of the PCB of the utility model.

[0020] Figure 2 It is the correction jig section three-dimensional structure schematic diagram suitable for the correction tool of the deformation of the PCB of the utility model.

[0021] Figure 3 It is the correction jig overhead three-dimensional structure schematic diagram suitable for the correction tool of the deformation of the PCB of the utility model.

[0022] Figure 4 It is the correction jig bottom view three-dimensional structure schematic diagram suitable for the correction tool of the deformation of the PCB of the utility model.

[0023] Figure 5 It is the correction jig and heating assembly part section three-dimensional structure schematic diagram suitable for the correction tool of the deformation of the PCB of the utility model.

[0024] Figure 6 It is the heat collecting cylinder and heating pipe three-dimensional structure schematic diagram suitable for the correction tool of the deformation of the PCB of the utility model.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, workbench, 2, correction jig, 3, cavity, 4, first correction groove, 5, second correction groove, 6, threaded hole, 7, square groove, 8, bolt, 9, first motor, 10, pinion, 11, rotating shaft, 12, gear, 13, heating assembly, 131, second motor, 132, ball screw, 133, ball silk cover, 134, heat collecting cylinder, 135, heating pipe, 136, slide bar, 137, slide cover. DETAILED DESCRIPTION

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., 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 that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] like Figure 1 and Figure 6 As shown in the figure, this embodiment provides a correction fixture suitable for PCB deformation, including a workbench 1 and a correction fixture 2 disposed on the upper end of the workbench 1. A cavity 3 is opened in the middle of the correction fixture 2. A first correction groove 4 is opened on the upper end of the correction fixture 2 at the upper end of the cavity 3. A second correction groove 5 is opened on the lower end of the correction fixture 2 at the cavity 3. Several sets of threaded holes 6 are opened at the end of the first correction groove 4 and the second correction groove 5 near the cavity 3. Bolts 8 are threaded into the middle of the threaded holes 6. A heating component 13 is provided inside the cavity 3. The heating component 13 includes a second motor 131 fixedly disposed on one end of the outer wall of the correction fixture 2. A ball screw 132 is connected to the output end of the second motor 131. A ball screw sleeve 133 is sleeved on the outer wall of the ball screw 132. A heat collection cylinder 134 is provided on one side of the ball screw sleeve 133. Several sets of heating tubes 135 are provided inside the heat collection cylinder 134.

[0032] The first calibration slot 4 and the second calibration slot 5 can accommodate PCBs of different models.

[0033] The mounting holes are formed on the PCB, the bolt 8 and the mounting holes formed on the PCB are completely corresponding and matching, and the lower end of the bolt 8 is threadedly inserted into the threaded hole 6.

[0034] The first correction groove 4 and the second correction groove 5 are both provided with a square groove 7 at one end close to the cavity 3, and the square groove 7 is connected with the inside of the cavity 3.

[0035] The outer wall of the correction jig 2 is fixedly connected with two groups of rotation shafts 11 which are symmetrical to each other, and the end of the rotation shaft 11 away from the correction jig 2 is rotationally connected with the workbench 1.

[0036] The heating assembly 13 further comprises a sliding rod 136 fixedly arranged on the inner wall of the cavity 3, and a sliding sleeve 137 movably sleeved on the outer wall of the sliding rod 136, and the ends of the sliding sleeve 137 and the ball screw 133 close to each other are both rotationally connected with the outer wall of the heat collecting cylinder 134, and the outer wall of the heat collecting cylinder 134 is attached to the correction jig 2.

[0037] The correction jig 2 is made of aluminum alloy.

[0038] The PCBs to be corrected are classified according to the types and placed into the specified first correction groove 4 and the second correction groove 5, the bolt 8 is sequentially installed into the mounting holes formed on the PCB, and the bolt 8 is screwed into the threaded hole 6, so that the PCB is fixed into the first correction groove 4 and the second correction groove 5, then the heating tube 135 is started to heat, the heat generated by the heating tube 135 is gathered in the heat collecting cylinder 134, the temperature of the heat collecting cylinder 134 is increased, the second motor 131 is periodically started to rotate forward and reverse, the second motor 131 drives the ball screw 132 to rotate, the ball screw 132 drives the ball screw sleeve 133 to move, so that the heat collecting cylinder 134 moves along the inside of the cavity 3 with the ball screw sleeve 133, in the moving process of the ball screw sleeve 133, the sliding sleeve 137 slides along the outer wall of the sliding rod 136, so that the stability of the heat collecting cylinder 134 in the moving process is increased, since the correction jig 2 is made of aluminum alloy, the heat is transferred to the correction jig 2 in the moving process of the heat collecting cylinder 134 along the cavity 3, so that the PCBs placed in the first correction groove 4 and the second correction groove 5 are gradually softened, in this process, the worker observes the deformation of the PCB, adjusts the tightness of the bolt 8, corrects the PCB, reasonably controls the temperature of the heating tube 135, so that the temperature of the heating tube 135 is controlled within the temperature range that the PCB can bear, and the damage of the PCB is avoided, then the heating tube 135 is turned off, and the PCB is cooled, after the cooling of the PCB is completed, the correction of the PCB is completed.

[0039] As Figure 1 and Figure 2As shown, the workbench 1 is fixedly connected with a first motor 9 at one end of the outer wall, the output end of the first motor 9 is connected with a pinion 10, one side of the pinion 10 is provided with a gear wheel 12, the pinion 10 and the gear wheel 12 are engaged with each other, and the gear wheel 12 is fixedly sleeved on the outer wall of one of the rotating shafts 11.

[0040] During the process of placing the PCB, the first motor 9 can be started to drive the pinion 10 to rotate, the pinion 10 drives the gear wheel 12 to rotate, and the gear wheel 12 drives the first correction groove 4 and the second correction groove 5 of the correction jig 2 to be placed horizontally upwards, which can facilitate the installation of the PCB and the observation of the deformation of the PCB, thereby facilitating the subsequent correction.

[0041] It should be understood that the use of these embodiments is only for the purpose of illustrating the present application and is not intended to limit the protection scope of the present application. In addition, it should also be understood that after reading the technical content of the present application, those skilled in the art can make various modifications, modifications and / or variations to the present application, and all these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. A correction fixture suitable for PCB deformation, comprising a worktable (1) and a correction jig (2) disposed on the upper end of the worktable (1), characterized in that: The calibration fixture (2) has a cavity (3) inside its middle section. A first calibration groove (4) is formed on the upper surface of the calibration fixture (2) above the cavity (3). A second calibration groove (5) is formed on the lower end of the calibration fixture (2) below the cavity (3). Several sets of threaded holes (6) are formed at the ends of the first and second calibration grooves (4) near the cavity (3). Bolts (8) are threaded into the middle of each threaded hole (6). The cavity (3)... The device is equipped with a heating assembly (13) inside. The heating assembly (13) includes a second motor (131) fixedly mounted on one end of the outer wall of the calibration fixture (2). The output end of the second motor (131) is connected to a ball screw (132). A ball screw sleeve (133) is fitted on the outer wall of the ball screw (132). A heat collection cylinder (134) is provided on one side of the ball screw sleeve (133). A number of heating tubes (135) are provided inside the heat collection cylinder (134).

2. The correction fixture for PCB deformation according to claim 1, characterized in that: The first correction slot (4) and the second correction slot (5) can accommodate PCBs of different models.

3. The correction fixture for PCB deformation according to claim 1, characterized in that: Mounting holes are provided on all the PCB boards. The bolts (8) and the mounting holes provided on the PCB boards are completely corresponding and matched. The lower end of the bolts (8) can be threaded into the threaded holes (6).

4. The correction fixture for PCB deformation according to claim 1, characterized in that: The first correction groove (4) and the second correction groove (5) are both provided with a square groove (7) at one end near the cavity (3), and the square groove (7) is connected to the inside of the cavity (3).

5. The correction fixture for PCB deformation according to claim 1, characterized in that: The correction fixture (2) has two sets of symmetrical rotating shafts (11) fixedly connected to both ends of its outer wall. The end of the rotating shaft (11) away from the correction fixture (2) is rotatably connected to the worktable (1).

6. The correction fixture for PCB deformation according to claim 5, characterized in that: A first motor (9) is fixedly connected to one end of the outer wall of the workbench (1). A small gear (10) is connected to the output end of the first motor (9). A large gear (12) is provided on one side of the small gear (10). The small gear (10) and the large gear (12) mesh with each other. The large gear (12) is fixedly sleeved on the outer wall of one of the sets of rotating shafts (11).

7. The correction fixture for PCB deformation according to claim 1, characterized in that: The heating assembly (13) also includes a slide rod (136) fixedly disposed on the inner wall of the cavity (3). A slide sleeve (137) is movably sleeved on the outer wall of the slide rod (136). The ends of the slide sleeve (137) and the ball screw sleeve (133) that are close to each other are rotatably connected to the outer walls of both ends of the heat collection cylinder (134). The outer wall of the heat collection cylinder (134) is in contact with the correction fixture (2).

8. The correction fixture for PCB deformation according to claim 1, characterized in that: The calibration fixture (2) is made of aluminum alloy.

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