Circuit board detection jig

Abstract

The utility model discloses a circuit board detection jig, and relates to the technical field of circuit board detection. The device comprises a rack, wherein two industrial cameras are arranged on the rack; the shaft rod is rotatably arranged on the rack, a fixing frame is arranged on the shaft rod, a plurality of rotating rods are rotatably arranged on the fixing frame, a connecting frame is arranged at the free end of each rotating rod, two fixing pieces are symmetrically arranged on the connecting frame, and a circuit board is fixed or unfixed through the fixing pieces. When the device is used, four stations are arranged on the machine frame, the two industrial cameras are located on the first detection station and the second detection station respectively, a worker is located near the feeding station and carries out feeding operation on the circuit board repeatedly, the shaft rod is driven to rotate through the driving piece, the four connecting frames sequentially pass through the four stations, and meanwhile, the working efficiency is greatly improved. The plurality of rotating rods are driven to rotate synchronously through the transmission part, so that the circuit board is overturned, and the two surfaces of the circuit board are detected through the two industrial cameras respectively.

Description

Technical Field

[0001] The present application relates to the technical field of circuit board detection, and in particular to a circuit board detection jig. Background Art

[0002] Circuit board is also called circuit board, PCB board, aluminum substrate, thick copper plate, etc. Circuit board is the provider of electrical connection for electronic components. It has a history of more than 100 years. Its design is mainly layout design. The main advantage of using circuit board is that it greatly reduces wiring and assembly errors, improves the level of automation and production labor rate. In the production process of circuit board, multiple tests are required, among which appearance inspection of circuit board by industrial camera is a more important one. In the prior art, when the circuit board is inspected for appearance, it is usually necessary to manually flip the circuit board to realize double-sided inspection, which is not only troublesome to operate, but also reduces the inspection efficiency. Therefore, a circuit board inspection jig is proposed. Utility Model Content

[0003] The purpose of the present application is to provide a circuit board inspection jig to solve the technical problem that, during the appearance inspection of a circuit board, it is usually necessary to manually flip the circuit board to achieve double-sided inspection, which is not only cumbersome to operate but also reduces the inspection efficiency.

[0004] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0005] Circuit board testing jig, including:

[0006] A frame, on which two industrial cameras are arranged;

[0007] A shaft rod is rotatably arranged on the frame, a fixing frame is arranged on the shaft rod, a plurality of rotating rods are rotatably arranged on the fixing frame, a connecting frame is arranged at the free end of the rotating rod, two fixing members are symmetrically arranged on the connecting frame, and the circuit board is fixed or released by the fixing members;

[0008] A driving member is arranged on the frame and the shaft rod, and drives the shaft rod to rotate through the driving member;

[0009] The transmission member is arranged on the frame and the plurality of rotating rods. When the fixed frame rotates, the plurality of rotating rods are driven to rotate synchronously through the transmission member.

[0010] Furthermore, the driving member includes a driving rod rotatably arranged on a frame, a driving motor having an output shaft connected to the driving rod is arranged on the frame, and the driving rod is transmission-connected to the shaft rod via an external meshing grooved wheel mechanism.

[0011] Furthermore, the transmission member comprises a bevel gear ring arranged on the frame, and the plurality of rotating rods are each provided with a bevel gear meshing with the bevel gear ring.

[0012] Furthermore, the fixing member includes a forward and reverse screw rod rotatably arranged on a connecting frame, and two sliding rods are slidably arranged on the connecting frame. The two sliding rods are respectively threadedly matched with the forward and reverse thread segments of the forward and reverse screw rods, and rubber pads are arranged on opposite sides of the two sliding rods.

[0013] Furthermore, an electric push rod is arranged on the connecting frame, and a push plate is arranged at the movable end of the electric push rod.

[0014] Furthermore, an inclined unloading slideway is provided on the frame.

[0015] Furthermore, a support member is provided between the frame and the fixing frame, and the fixing frame is supported by the support member.

[0016] Furthermore, the support member includes a first annular groove formed on the frame, a plurality of balls are movably embedded in the first annular groove, and a second annular groove is formed on the fixing frame, and the balls are movably engaged with the second annular groove.

[0017] The beneficial effects of the present application are as follows: When the present application is in use, four workstations are set on the frame, and two industrial cameras are respectively located at the first inspection station and the second inspection station. A staff member is located near the loading station and repeatedly performs loading operations on the circuit board. The shaft rod is driven to rotate by the driving member, and the four connecting frames pass through the four workstations in turn. At the same time, multiple rotating rods are driven to rotate synchronously by the transmission member to realize the flipping of the circuit board, thereby realizing the inspection of both sides of the circuit board by two industrial cameras respectively. When the circuit board is located at the unloading station, the circuit board is released by the fixing member, and the circuit board is unloaded. This cycle is repeated to realize continuous double-sided inspection of the circuit board. There is no need to manually flip the circuit board, which is convenient to operate and also improves the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the structure of this application;

[0019] Figure 2 This application Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 It is a three-dimensional cross-sectional view of the present application;

[0021] Figure 4 This application Figure 3 The enlarged view of point B in the middle;

[0022] Figure 5 It is a three-dimensional diagram of some structures of this application;

[0023] Figure 6It is a three-dimensional diagram of the driving component structure of the present application.

[0024] Attached figures: 1. frame; 2. industrial camera; 3. shaft; 4. fixing frame; 5. rotating rod; 6. connecting frame; 7. fixing part; 701. forward and reverse screw rods; 702. sliding rod; 703. rubber pad; 8. driving part; 801. driving rod; 802. driving motor; 803. external meshing groove wheel mechanism; 9. transmission part; 901. bevel gear ring; 902. bevel gear; 10. electric push rod; 11. push plate; 12. unloading slide; 13. supporting part; 1301. first annular groove; 1302. ball; 1303. second annular groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0026] like Figure 1-Figure 6 As shown, a circuit board detection jig proposed in one embodiment of the present application includes:

[0027] A frame 1, on which two industrial cameras 2 are arranged, the frame 1 has four stations distributed in a circular array, which are a loading station, a first inspection station, a second inspection station and an unloading station, respectively, and the two industrial cameras 2 are fixedly arranged at the first inspection station and the second inspection station;

[0028] A shaft 3 is rotatably arranged on the frame 1, the shaft 3 is in a vertical direction, a fixing frame 4 is arranged on the shaft 3, the fixing frame 4 is fixed on the shaft 3, a plurality of rotating rods 5 are rotatably arranged on the fixing frame 4, the number of the rotating rods 5 is four and they are distributed in a ring array, the rotating rods 5 are all in a horizontal direction, a connecting frame 6 is arranged at the free end of the rotating rod 5, the connecting frame 6 and the rotating rod 5 are fixedly connected, two fixing members 7 are symmetrically arranged on the connecting frame 6, and the circuit board is fixed or released by the fixing members 7;

[0029] The driving member 8 is arranged on the frame 1 and the shaft 3, and the shaft 3 is driven to rotate by the driving member 8. Here, driving the shaft 3 to rotate means that the shaft 3 will stop for a short period of time every time it rotates a quarter of a turn, and then continue to rotate, so as to facilitate loading, first surface inspection, second surface inspection and unloading of the circuit board;

[0030] The transmission member 9 is arranged on the frame 1 and the plurality of rotating rods 5. When the fixed frame 4 rotates, the plurality of rotating rods 5 are driven to rotate synchronously by the transmission member 9. Here, driving the plurality of rotating rods 5 to rotate synchronously means that the plurality of rotating rods 5 rotate synchronously around their respective axes to realize the flipping of the circuit board, that is, when the shaft rod 3 rotates a quarter of a turn, the rotating rod 5 rotates 180 degrees;

[0031] In the initial state, the four connecting frames 6 correspond to the four workstations respectively. When in use, the staff is located near the loading station, and repeatedly places the circuit board horizontally on the fixing members 7 on the four connecting frames 6, and fixes the circuit board through the fixing members 7, that is, the workers repeat the loading operation on the circuit board, and drive the shaft 3 to rotate through the driving member 8. The four connecting frames 6 pass through the first inspection station, the second inspection station and the unloading station in turn. At the same time, the transmission member 9 drives the multiple rotating rods 5 to rotate synchronously to realize the flipping of the circuit board, so as to realize the detection of the two sides of the circuit board through the two industrial cameras 2 respectively. When the circuit board is located at the unloading station, the circuit board is released by the fixing member 7, and the circuit board is unloaded. This cycle is repeated to realize continuous double-sided detection of the circuit board, and there is no need to manually flip the circuit board, which is convenient to operate and also improves the detection efficiency;

[0032] To summarize, when the present application is in use, four workstations are set on the frame 1, and two industrial cameras 2 are respectively located at the first inspection station and the second inspection station. A staff member is located near the loading station and repeatedly performs loading operations on the circuit board. The driving member 8 drives the shaft 3 to rotate, and the four connecting frames 6 pass through the four workstations in turn. At the same time, the transmission member 9 drives multiple rotating rods 5 to rotate synchronously to realize the flipping of the circuit board, thereby realizing the inspection of both sides of the circuit board by the two industrial cameras 2 respectively. When the circuit board is located at the unloading station, the circuit board is released by the fixing member 7, and the circuit board is unloaded. This cycle is repeated to realize continuous double-sided inspection of the circuit board. There is no need to manually flip the circuit board, which is convenient to operate and also improves the inspection efficiency.

[0033] like Figure 6 As shown, in some embodiments, the driving member 8 includes a driving rod 801 rotatably arranged on the frame 1, the driving rod 801 is in a vertical direction, the frame 1 is provided with a driving motor 802 having an output shaft connected to the driving rod 801, the driving motor 802 is fixed on the frame 1, the driving rod 801 is connected to the shaft 3 through an external meshing groove wheel mechanism 803, the transmission ratio of the external meshing groove wheel mechanism 803 is four to one, the external meshing groove wheel mechanism 803 is composed of three parts: an active dial, a cylindrical pin and a driven groove wheel, the active dial is fixed On the driving rod 801, the driven sheave is fixed on the shaft 3, wherein the cylindrical pin is installed on the active dial, the active dial is configured with a locking arc, and the driven sheave is configured with a locking arc and a radial groove. The working principle sequence is roughly as follows: the active dial rotates, the cylindrical pin enters the radial groove, the locking arc is released, the driven sheave rotates, the cylindrical pin escapes from the radial groove, another locking arc of the driven sheave is locked by the locking arc of the active dial, the active dial rotates, and the driven sheave is stationary, that is, the active dial rotates one circle forward, and the driven sheave rotates a quarter circle in the reverse direction;

[0034] Referring to the above, when in use, turn on the drive motor 802, the drive motor 802 works, the output shaft rotates, and drives the drive rod 801 to rotate together, and drives the shaft rod 3 to rotate together through the external meshing groove wheel mechanism 803, that is, every time the drive rod 801 rotates one circle, the shaft rod 3 rotates a quarter circle, and then stops for a short period of time and continues to rotate.

[0035] like Figure 4 As shown, in some embodiments, the transmission member 9 includes a bevel gear ring 901 disposed on the frame 1, the bevel gear ring 901 is horizontal and fixed on the frame 1, and a plurality of rotating rods 5 are each provided with a bevel gear 902 meshing with the bevel gear ring 901, and the bevel gear 902 is vertical and fixed on the rotating rod 5;

[0036] Referring to the above, when the shaft 3 rotates, it drives the fixed frame 4 and the multiple rotating rods 5 to rotate together. During this process, the multiple bevel gears 902 will rotate due to the meshing action with the bevel gear ring 901, so as to realize the synchronous rotation of the multiple rotating rods 5 around their respective axes, so as to realize the flipping of the circuit board, that is, every time the shaft 3 rotates a quarter of a turn, the rotating rod 5 rotates one hundred and eighty degrees.

[0037] like Figure 2 As shown, in some embodiments, the fixing member 7 includes a positive and negative screw rod 701 rotatably arranged on the connecting frame 6, the positive and negative screw rod 701 is in a vertical direction, and two slide rods 702 are slidably arranged on the connecting frame 6, and the slide rod 702 slides along the vertical direction. The two slide rods 702 are respectively threadedly matched with the positive and negative thread segments of the positive and negative screw rod 701, and rubber pads 703 are arranged on the opposite sides of the two slide rods 702, and the rubber pads 703 are fixed on the slide rods 702;

[0038] Referring to the above, in the initial state, the two slide bars 702 are far away from each other. When in use, the circuit board is placed horizontally on the slide bar 702 located at the bottom, and the forward and reverse screw rods 701 are driven to rotate forward. The two slide bars 702 are synchronously slid in reverse directions due to the action of the forward and reverse threads until they are close to each other, until the two rubber pads 703 are respectively in contact with the opposite sides of the circuit board to overlap, so as to fix the circuit board. Conversely, the forward and reverse screw rods 701 are driven to rotate in reverse directions, and the two slide bars 702 are synchronously slid in reverse directions due to the action of the forward and reverse threads until they are far away from each other, so that the circuit board can be released.

[0039] like Figure 4 As shown, in some embodiments, an electric push rod 10 is disposed on the connecting frame 6, the electric push rod 10 is horizontally oriented and fixedly disposed on the connecting frame 6, and a push plate 11 is disposed at the movable end of the electric push rod 10, the push plate 11 is vertically oriented and fixedly disposed at the movable end of the electric push rod 10;

[0040] Referring to the above, in the initial state, the movable end of the electric push rod 10 is retracted, and when the circuit board is fixed, one side of the circuit board is made to contact and overlap with the push plate 11 to achieve rapid positioning of the circuit board. When the circuit board is unloading, the movable end of the electric push rod 10 is extended to drive the push plate 11 to move in the horizontal direction, pushing the circuit board away from the slide bar 702 to achieve the unloading operation, and then the movable end of the electric push rod 10 is driven to be retracted.

[0041] like Figure 1 As shown, in some embodiments, an inclined unloading slide 12 is provided on the frame 1, and the unloading slide 12 is fixed on the frame 1 and corresponds to the unloading station;

[0042] With reference to the above, when the circuit board is unloaded, the circuit board is guided and limited by the unloading slide 12, thereby making the unloading operation more convenient.

[0043] like Figure 3 As shown, in some embodiments, a support member 13 is provided between the frame 1 and the fixing frame 4, and the fixing frame 4 is supported by the support member 13;

[0044] With reference to the above, when the fixing frame 4 rotates, it is supported by the supporting member 13 without affecting its rotation, thereby improving the stability in use.

[0045] like Figure 5 As shown, in some embodiments, the support member 13 includes a first annular groove 1301 opened on the frame 1, the first annular groove 1301 is horizontal, and a plurality of balls 1302 are movably embedded in the first annular groove 1301. The balls 1302 can move in the first annular groove 1301, but cannot exit the first annular groove 1301. A second annular groove 1303 is opened on the fixing frame 4, the second annular groove 1303 is horizontal and corresponds to the first annular groove 1301, and the balls 1302 and the second annular groove 1303 are movably matched;

[0046] As mentioned above, when the fixing frame 4 rotates, the balls 1302 move in the first annular groove 1301 and the second annular groove 1303 to support the fixing frame 4 without affecting its rotation.

[0047] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A circuit board testing jig, characterized in that: include: A frame (1) on which two industrial cameras (2) are arranged; A shaft (3) is rotatably arranged on the frame (1); a fixing frame (4) is arranged on the shaft (3); a plurality of rotating rods (5) are rotatably arranged on the fixing frame (4); a connecting frame (6) is arranged at the free end of the rotating rod (5); two fixing members (7) are symmetrically arranged on the connecting frame (6); and the circuit board is fixed or released by the fixing members (7); A driving member (8) is arranged on the frame (1) and the shaft (3), and drives the shaft (3) to rotate through the driving member (8); The transmission member (9) is arranged on the frame (1) and the plurality of rotating rods (5). When the fixed frame (4) rotates, the plurality of rotating rods (5) are driven to rotate synchronously through the transmission member (9).

2. The circuit board detection jig according to claim 1, characterized in that: The driving member (8) comprises a driving rod (801) rotatably arranged on a frame (1); a driving motor (802) having an output shaft connected to the driving rod (801) is arranged on the frame (1); and the driving rod (801) is transmission-connected to the shaft rod (3) via an external meshing grooved wheel mechanism (803).

3. The circuit board detection jig according to claim 1, characterized in that: The transmission member (9) comprises a bevel gear ring (901) arranged on the frame (1), and each of the plurality of rotating rods (5) is provided with a bevel gear (902) meshing with the bevel gear ring (901).

4. The circuit board detection jig according to claim 1, characterized in that: The fixing member (7) comprises a forward and reverse screw rod (701) rotatably arranged on a connecting frame (6), two sliding rods (702) are slidably arranged on the connecting frame (6), the two sliding rods (702) are respectively threadedly matched with the forward and reverse thread segments of the forward and reverse screw rod (701), and rubber pads (703) are arranged on opposite sides of the two sliding rods (702).

5. The circuit board testing jig according to claim 1, characterized in that: An electric push rod (10) is arranged on the connecting frame (6), and a push plate (11) is arranged at the movable end of the electric push rod (10).

6. The circuit board testing jig according to claim 1, characterized in that: The frame (1) is provided with an inclined discharge slideway (12).

7. The circuit board testing jig according to claim 1, characterized in that: A support member (13) is provided between the frame (1) and the fixed frame (4), and the fixed frame (4) is supported by the support member (13).

8. The circuit board testing jig according to claim 7, characterized in that: The support member (13) comprises a first annular groove (1301) formed on the frame (1), a plurality of balls (1302) being movably embedded in the first annular groove (1301), and a second annular groove (1303) being formed on the fixing frame (4), the balls (1302) being movably engaged with the second annular groove (1303).

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