Circuit board test fixture

Abstract

The utility model discloses a circuit board test fixture. The circuit board test fixture comprises a fixture base and a fixing mechanism, the rear side of the upper surface of the jig base is fixedly connected with a rear side jacking plate through a bolt, and the left side of the upper surface of the jig base is also fixedly connected with a left side jacking plate through a bolt; the fixing mechanism comprises a sliding groove, sliding blocks, connecting rods and top connecting seats, the sliding groove is formed in the upper surface of the jig base, the sliding blocks are slidably connected to the interior of the sliding groove in a bilateral symmetry mode, the upper ends of the two sliding blocks are rotationally connected with the connecting rods through rotating shafts correspondingly, and the front ends of the two connecting rods are rotationally connected with the interior of one top connecting seat through rotating shafts; the fixing mechanism further comprises a limiting rod and a spring, the limiting rod is fixedly connected to the interior of the sliding groove, the middles of the two sliding blocks are both in sliding connection with the outer arc face of the limiting rod, and the circuit board testing jig can quickly fix and position a circuit board and then can quickly perform various precise testing operations on the circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit board testing fixture. Background Art

[0002] In the electronics manufacturing industry, the production of circuit boards is a very important link. During the production of circuit boards, each circuit needs to be tested for continuity, such as testing the contacts in different functional modules such as light emission and buzzing.

[0003] Most of the existing inspections are done manually, with workers testing and inspecting each point in turn, and testing each instrument of the circuit board in turn;

[0004] This manual method of testing circuit boards has some problems. For example, if the circuit board is not fixed, it may be offset during manual measurement, resulting in inaccurate testing of the circuit board. For this reason, we propose a circuit board test fixture. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a circuit board testing fixture, which has a good positioning effect on the circuit board and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit board test fixture, comprising a fixture base and a fixing mechanism;

[0007] The fixture base: the rear side of the upper surface of the fixture base is fixedly connected with a rear top connecting plate by bolts, and the left side of the upper surface of the fixture base is also fixedly connected with a left top connecting plate by bolts;

[0008] Fixing mechanism: It includes a slide groove, a slider, a connecting rod and a top connection seat. The slide groove is opened on the upper surface of the fixture base. The inside of the slide groove is symmetrically slidably connected with the slider. The upper ends of the two sliders are respectively connected to the connecting rods through the rotating shaft. The front ends of the two connecting rods are also connected to the inside of a top connection seat through the rotating shaft. The circuit board can be quickly fixed, and various precise testing operations of the circuit board can be quickly carried out after positioning.

[0009] Furthermore, the fixing mechanism also includes a limit rod and a spring, the limit rod is fixedly connected to the inside of the slide groove, the middle parts of the two sliders are slidably connected to the outer arc surface of the limit rod, and springs are respectively fixedly connected between the opposite outer side surfaces of the two sliders and the inner wall of the slide groove, and the two springs are both mounted on the outer arc surface of the limit rod to provide a reset force for clamping.

[0010] Furthermore, the fixing mechanism also includes a stable travel component, which includes a handle, a sliding hole and a sliding rod. The sliding hole is opened on the front side of the fixture base, and the front side of the top seat is fixedly connected with the sliding rod. The outer arc surface of the sliding rod is slidably connected to the inside of the sliding hole. A handle is provided at the front end of the sliding rod to realize the function of manual drive.

[0011] Furthermore, the fixing mechanism also includes a front clamping plate, which is arranged on the rear side of the upper surface of the top connecting seat, a rear limiting plate is provided on the front side of the upper surface of the rear top connecting plate, and a left limiting plate is provided on the right side of the upper surface of the left top connecting plate, thereby realizing the function of clamping in three directions.

[0012] Furthermore, it also includes a control switch, which is arranged on the right side of the front side of the fixture base, and the input end of the control switch is electrically connected to an external power supply to control the operation of the electrical appliance.

[0013] Furthermore, it also includes a gantry, which is arranged in the middle of the rear side surface of the fixture base, and an electric push rod is provided at the upper end of the gantry. The telescopic end of the electric push rod is fixedly connected to a mounting plate, and the upper end of the mounting plate is provided with evenly distributed threaded openings. The input end of the electric push rod is electrically connected to the output end of the control switch to realize the function of installing the measuring instrument.

[0014] Furthermore, it also includes installation ports, which are respectively arranged at the four corners of the bottom surface of the fixture base, and the lower ends of the four installation ports are provided with threaded installation ports to achieve the installation function.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the circuit board test fixture has the following advantages:

[0016] When it is necessary to test various data of the circuit board, at this time, the handle can be manually pulled forward, and then the top connecting seat is pulled forward through the sliding rod. During this period, the two connecting rods change their angles with their own front ends as the center, and then drive the two sliders to move relatively away. At this time, the staff can manually pick up the circuit board with the other hand, align the upper left corner of the circuit board with the right angle formed by the rear top connecting plate and the left top connecting plate, and then the circuit board is fastened by the rear limit plate and the left limit plate. At this time, the staff's hand can release the pull on the handle. At this time, affected by the elastic force of the spring, the two sliders are relatively close, and then the top connecting seat is driven to move backward through the connecting rod until the top connecting seat presses the front end of the circuit board from the front side, and the front top tightening plate of the top connecting seat fastens the circuit board, so that the circuit board can be quickly fixed. After positioning, various precise testing operations on the circuit board can be quickly carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] In the figure: 1 fixture base, 2 rear top plate, 3 left top plate, 4 fixing mechanism, 41 slide groove, 42 limit rod, 43 spring, 44 slider, 45 connecting rod, 46 top seat, 47 stable travel component, 471 handle, 472 slide hole, 473 slide rod, 48 front top tightening plate, 5 control switch, 6 door frame, 7 electric push rod, 8 mounting plate, 9 rear limit plate, 10 left limit plate, 11 mounting port. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 , This embodiment provides a technical solution: a circuit board test fixture, including a fixture base 1 and a fixing mechanism 4;

[0021] The fixture base 1: The rear side of the upper surface thereof is fixedly connected with the rear top connecting plate 2 by bolts, and the left side of the upper surface of the fixture base 1 is also fixedly connected with the left top connecting plate 3 by bolts, and also includes a control switch 5, which is arranged on the right side of the front side of the fixture base 1, and the input end of the control switch 5 is electrically connected to the external power supply, and also includes a door frame 6, which is arranged in the middle of the rear side of the fixture base 1, and the upper end of the door frame 6 is provided with an electric push rod 7, and the telescopic end of the electric push rod 7 is fixedly connected with a mounting plate 8, and the upper end of the mounting plate 8 is provided with evenly distributed threaded openings, and the input end of the electric push rod 7 is electrically connected to the output of the control switch 5. The output end also includes a mounting port 11, which is respectively arranged at the four corners of the bottom surface of the fixture base 1. The lower ends of the four mounting ports 11 are provided with threaded mounting ports. When a circuit board test operation is required, the device is installed to a designated workstation through external bolts and the threaded mounting ports on the mounting ports 11. At this time, the instrument required for the test is installed to the lower surface of the mounting plate 8 through the external bolts and the threaded ports. At this time, the control switch 5 can be adjusted, and the telescopic end of the electric push rod 7 is extended, thereby driving the test instrument to move downward until the test instrument contacts the circuit board. At this time, the test instrument can be adjusted to test various data of the circuit board;

[0022] The fixing mechanism 4 includes a slide 41, a slider 44, a connecting rod 45 and a top seat 46. The slide 41 is provided on the upper surface of the fixture base 1. The slide 44 is symmetrically slidably connected inside the slide 41. The upper ends of the two sliders 44 are respectively connected to the connecting rods 45 through the rotating shaft. The front ends of the two connecting rods 45 are also connected to the inside of a top seat 46 through the rotating shaft. The fixing mechanism 4 also includes a limit rod 42 and a spring 43. The limit rod 42 is fixedly connected to the inside of the slide 41. The middle parts of the two sliders 44 are connected to the limit rod 42. The outer arc surface of the two sliders 44 is slidably connected, and springs 43 are fixedly connected between the opposite outer sides of the two sliders 44 and the inner wall of the slide groove 41. The two springs 43 are both sleeved on the outer arc surface of the limit rod 42. The fixing mechanism 4 also includes a stable travel component 47, and the stable travel component 47 includes a handle 471, a sliding hole 472 and a sliding rod 473. The sliding hole 472 is opened on the front side of the fixture base 1, and the front side of the top connection seat 46 is fixedly connected to the sliding rod 473. The outer arc surface of the sliding rod 473 is slidably connected to the inside of the sliding hole 472. The front of the sliding rod 473 A handle 471 is provided at the end, and the fixing mechanism 4 also includes a front tightening plate 48, which is arranged on the rear side of the upper surface of the top connection seat 46, and a rear limit plate 9 is provided on the front side of the upper surface of the rear top connection plate 2, and a left limit plate 10 is provided on the right side of the upper surface of the left top connection plate 3. The handle 471 is manually pulled forward, and then the top connection seat 46 is pulled forward through the sliding rod 473. During this period, the two connecting rods 45 change their angles with their own front ends as the center, thereby driving the two sliders 44 to move away from each other. At this time, the staff can move forward. The circuit board can be manually picked up with one hand, and the upper left corner of the circuit board is aligned with the right angle formed by the rear top connecting plate 2 and the left top connecting plate 3. The circuit board is then fastened by the rear limiting plate 9 and the left limiting plate 10. At this time, the staff's hand can release the pull on the handle 471. At this time, affected by the elastic force of the spring, the two sliders 44 are relatively close to each other, and then the top connecting seat 46 is driven to move backward through the connecting rod until the top connecting seat 46 presses the front end of the circuit board from the front side, and the front side tightening plate 48 of the top connecting seat 46 fastens the circuit board.

[0023] The working principle of a circuit board test fixture provided by the utility model is as follows: when a circuit board test operation is required, it is installed to a designated work station through external bolts and the threaded mounting opening on the mounting opening 11. At this time, the instrument required for the test is installed to the lower surface of the mounting plate 8 through the external bolts and the threaded opening. At this time, the handle 471 can be manually pulled forward, and then the top connection seat 46 can be pulled forward through the sliding rod 473. During this period, the two connecting rods 45 change their angles with their own front ends as the center, thereby driving the two sliders 44 to move away from each other. At this time, the staff can manually pick up the circuit board with the other hand, and align the upper left corner of the circuit board with the rear top connection plate 2 The right angle formed by the left top connecting plate 3 is aligned, and then the circuit board is fastened by the rear limit plate 9 and the left limit plate 10. At this time, the staff's hand can release the pull on the handle 471. At this time, affected by the elastic force of the spring, the two sliders 44 are relatively close to each other, and then the top connecting seat 46 is driven to move backward through the connecting rod until the top connecting seat 46 presses the front end of the circuit board from the front side, and the front side pressing plate 48 of the top connecting seat 46 fastens the circuit board. At this time, the control switch 5 can be adjusted, and the telescopic end of the electric push rod 7 is extended, thereby driving the test instrument to move downward until the test instrument contacts the circuit board. At this time, the test instrument can be adjusted to test various data of the circuit board.

[0024] It is worth noting that the electric push rod 7 disclosed in the above embodiment can be freely configured according to the actual application scenario. It is recommended to use the FY025 model industrial electric push rod for the electric push rod 7. The control switch 5 is provided with a control button corresponding to the electric push rod 7 and used to control its switch.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A circuit board test fixture, characterized in that: It comprises a fixture base (1) and a fixing mechanism (4); The fixture base (1): a rear top connecting plate (2) is fixedly connected to the rear side of the upper surface thereof by means of bolts, and a left top connecting plate (3) is also fixedly connected to the left side of the upper surface of the fixture base (1) by means of bolts; The fixing mechanism (4) comprises a slide groove (41), a slider (44), a connecting rod (45) and a top connection seat (46). The slide groove (41) is provided on the upper surface of the fixture base (1). The slide groove (41) is symmetrically slidably connected to the inside of the slide groove (41). The upper ends of the two sliders (44) are rotatably connected to the connecting rods (45) via rotating shafts. The front ends of the two connecting rods (45) are also rotatably connected to the inside of a top connection seat (46) via the rotating shaft.

2. A circuit board test fixture according to claim 1, characterized in that: The fixing mechanism (4) further comprises a limiting rod (42) and a spring (43); the limiting rod (42) is fixedly connected to the inside of the slide groove (41); the middle parts of the two sliding blocks (44) are slidably connected to the outer arc surface of the limiting rod (42); the springs (43) are respectively fixedly connected between the opposite outer side surfaces of the two sliding blocks (44) and the inner wall of the slide groove (41); and the two springs (43) are sleeved on the outer arc surface of the limiting rod (42).

3. A circuit board test fixture according to claim 1, characterized in that: The fixing mechanism (4) further comprises a stable travel component (47), the stable travel component (47) comprising a handle (471), a sliding hole (472) and a sliding rod (473), the sliding hole (472) being formed on the front side of the fixture base (1), the front side of the top connection seat (46) being fixedly connected to the sliding rod (473), the outer arc surface of the sliding rod (473) being slidably connected to the inside of the sliding hole (472), and the front end of the sliding rod (473) being provided with a handle (471).

4. A circuit board test fixture according to claim 1, characterized in that: The fixing mechanism (4) further comprises a front tightening plate (48), the front tightening plate (48) being arranged on the rear side of the upper surface of the top connection seat (46), a rear limit plate (9) being arranged on the front side of the upper surface of the rear top connection plate (2), and a left limit plate (10) being arranged on the right side of the upper surface of the left top connection plate (3).

5. A circuit board test fixture according to claim 1, characterized in that: It also includes a control switch (5), which is arranged on the right side of the front side of the fixture base (1), and the input end of the control switch (5) is electrically connected to an external power supply.

6. A circuit board test fixture according to claim 5, characterized in that: It also includes a door frame (6), the door frame (6) being arranged at the middle of the rear side surface of the fixture base (1), an electric push rod (7) being arranged at the upper end of the door frame (6), a mounting plate (8) being fixedly connected to the telescopic end of the electric push rod (7), the upper end of the mounting plate (8) being provided with evenly distributed threaded openings, and an input end of the electric push rod (7) being electrically connected to an output end of the control switch (5).

7. A circuit board test fixture according to claim 1, characterized in that: It also comprises mounting openings (11), wherein the mounting openings (11) are respectively arranged at four corners of the bottom surface of the fixture base (1), and threaded mounting openings are arranged at the lower ends of the four mounting openings (11).

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