Magnetic suction test frame

Abstract

The utility model discloses a magnetic suction test frame, which belongs to the technical field of test frames, and comprises a test base, a magnetic suction bottom plate, a plurality of magnetic suction thimbles, a magnetic suction pressure plate and a plurality of magnetic suction pressure columns, the magnetic suction bottom plate is fixed on the upper surface of the test base, the magnetic suction thimbles are magnetically adsorbed and fixed on the magnetic suction bottom plate, and the magnetic suction pressure columns are fixed on the magnetic suction bottom plate. A concave frame is fixedly connected to the rear end of the upper side wall of the test base, a telescopic cylinder is fixedly connected to the upper end of the concave frame, the lower end of the telescopic cylinder penetrates through the concave frame and is fixedly connected with a lifting plate, the front end of the lifting plate is fixedly connected with a magnetic suction pressing plate, and a magnetic suction pressing column is magnetically adsorbed and fixed to the lower surface of the magnetic suction pressing plate. By arranging the magnetic bottom plate, the plurality of magnetic ejector pins, the magnetic pressure plate, the plurality of magnetic pressure columns and the four magnetic positioning columns, the test frame is convenient to arrange, simple to mount and dismount, suitable for detecting to-be-tested pieces of different specifications, convenient to use and capable of saving detection cost.

Description

Technical Field

[0001] The utility model relates to the technical field of test racks, in particular to a magnetic attraction test rack. Background Art

[0002] In this era of rapid electronic development, the iteration speed of electronic products is also fast. The quantity of some products is not large, resulting in a low utilization rate of related tools needed for product production, such as test frames, steel meshes, etc. For the use of test frames, usually a matching test frame is formulated according to the specifications or types of the devices to be tested, that is, the corresponding number and position of test pins are installed on the test panel.

[0003] However, the test stand in the prior art can only test a single device to be tested, has a small scope of application, is inconvenient to use, and needs to be replaced with a new test stand each time a different product is tested. The testing cost is high, the practicality is insufficient, and the placement and positioning accuracy of the device to be tested is not high, which affects the detection efficiency and quality. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of the utility model is to provide a magnetic test stand, which, by arranging a magnetic bottom plate, a plurality of magnetic ejector pins, a magnetic pressure plate, a plurality of magnetic pressure columns and four magnetic positioning columns, realizes the functions of convenient layout of the test stand, simple installation and disassembly, suitable for testing parts to be tested of different specifications, easy to use, and saving testing costs; it solves the problem that the test stand of the prior art proposed in the background technology can only test a single device to be tested, has a small scope of application, is inconvenient to use, needs to be replaced with a new test stand each time a different product is tested, has high testing costs, and is insufficient in practicality.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: the utility model provides a magnetic test stand, including: a test base, a magnetic bottom plate, a plurality of magnetic ejector pins, a magnetic pressure plate and a plurality of magnetic pressure columns, the magnetic bottom plate is fixed to the upper surface of the test base, the magnetic ejector pins are fixed to the magnetic bottom plate by magnetic adsorption, the rear end of the upper side wall of the test base is fixedly connected with a concave frame, the upper end of the concave frame is fixedly connected with a telescopic cylinder, the lower end of the telescopic cylinder passes through the concave frame and is fixedly connected with a lifting plate, the front end of the lifting plate is fixed with the magnetic pressure plate The magnetic pressure column is magnetically adsorbed and fixed to the lower surface of the magnetic pressure plate, and the four corners of the upper side wall of the magnetic bottom plate are magnetically adsorbed and connected with four magnetic positioning columns for positioning the four corners of the test piece. The test base is a hollow structure, and an adjustment mechanism is provided in the test base. The two ends of the adjustment mechanism extend through and extend to the upper sides of the magnetic bottom plate and are fixedly connected to two symmetrically arranged positioning plates. The front side wall of the test base is fixedly connected with a control panel, and the control panel is electrically connected to one end of the telescopic cylinder and the adjustment mechanism respectively.

[0006] Preferably, the adjustment mechanism includes a stepper motor fixed to the inner wall of the test base, the main shaft end of the stepper motor is fixedly connected to a worm, the inner wall of the test base is rotatably connected to a worm wheel meshing with the worm through a rotating shaft, a cam member is fixedly connected to the rotating shaft, both ends of the cam member are hingedly connected to a rocker rod, the inner wall of the test base is slidably connected to two symmetrically arranged slides, the two slides are respectively hingedly connected to two rocker rods, the far sides of the two slides are fixedly connected to a U-shaped frame, the two U-shaped frames respectively pass through the two sides of the test base and are respectively fixedly connected to the two positioning plates.

[0007] Preferably, the outer wall of the rotating shaft is fixedly connected to the inner wall of the through hole of the worm gear and the cam member by welding.

[0008] Preferably, the magnetic ejector pin comprises a copper ejector pin, and the lower end of the copper ejector pin is fixedly connected to a magnetic block.

[0009] Preferably, two symmetrically arranged positioning rods are fixedly connected between the concave frame and the test base, and the two positioning rods are both arranged through the lifting plate.

[0010] Preferably, a distance sensor is installed on the side wall opposite to the two positioning plates, and one end of the distance sensor is electrically connected to the control panel.

[0011] The beneficial effects of the utility model are:

[0012] 1. In the utility model, a magnetic bottom plate, a plurality of magnetic ejector pins, a magnetic pressure plate, a plurality of magnetic pressure columns and four magnetic positioning columns are provided. According to the detection point of the workpiece to be tested, a magnetic ejector pin can be placed on the magnetic bottom plate for magnetic fixation, and a magnetic pressure column can be placed on the magnetic pressure plate for magnetic fixation to press and fix the workpiece to be tested. The four magnetic positioning columns are placed on the magnetic bottom plate for magnetic fixation according to the positions of the four corners of the workpiece to be tested, so that the four corners of the workpiece to be tested can be placed and positioned when the workpiece to be tested is placed. The test can be carried out after power is turned on. The layout is convenient, the installation and disassembly are simple, and the test is suitable for testing workpieces of different specifications. It is easy to use and saves the detection cost to meet the needs of test racks with low usage or temporary use.

[0013] 2. In the utility model, by setting an adjustment mechanism and two positioning plates, the stepper motor is started according to the actual length of the workpiece to be tested. Since the worm and the worm wheel are meshed, the cam part on the rotating shaft is driven to rotate, which can pull the two rocker rods to swing, thereby driving the U-shaped frame fixed to the slide plate to move, and the two positioning plates can be driven to move until the spacing between the two positioning plates reaches a preset value and then stops working. When placing the workpiece to be tested, both sides of the workpiece to be tested can be positioned, which is convenient for more accurate placement and more convenient placement, thereby improving detection efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the test base in the utility model.

[0017] Figure 3 It is a schematic diagram of the front cross-sectional structure of the test base in the utility model.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the magnetic ejector pin in the utility model.

[0019] Explanation of the accompanying drawings: 1-test base, 2-magnetic bottom plate, 3-magnetic ejector pin, 301-copper ejector pin, 302-magnetic block, 4-magnetic pressure plate, 5-magnetic pressure column, 6-concave frame, 7-telescopic cylinder, 8-lifting plate, 9-magnetic positioning column, 10-positioning plate, 11-control panel, 12-stepping motor, 13-worm, 14-rotating shaft, 15-worm wheel, 16-cam member, 17-rocker, 18-slide plate, 19-U-shaped frame, 20-positioning rod, 21-distance sensor. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1:

[0022] like Figures 1 to 4As shown, the present embodiment provides a magnetic attraction test stand, comprising: a test base 1, a magnetic attraction bottom plate 2, a plurality of magnetic attraction pins 3, a magnetic attraction pressure plate 4 and a plurality of magnetic attraction pressure columns 5. The magnetic attraction bottom plate 2 and the magnetic attraction pressure plate 4 both adopt electromagnetic plates, which are magnetic when powered on and lose their magnetism after power is off. Conventional magnetic plates can also be used for direct magnetic attraction. This is the prior art, so it will not be described in detail. The magnetic attraction pins 3 are used to detect the test piece, and the magnetic attraction pressure columns 5 are used to press the test piece to prevent it from deflecting. The magnetic attraction bottom plate 2 is fixed to the upper surface of the test base 1, and the magnetic attraction pins 3 are magnetically adsorbed and fixed on the magnetic attraction bottom plate 2. The magnetic attraction pins 3 are placed and arranged according to the actual detection points of the test piece. The rear end of the upper side wall of the test base 1 is fixedly connected with a concave frame 6, and the upper end of the concave frame 6 is fixedly connected with a telescopic cylinder 7. The telescopic cylinder 7 can be replaced with a manually operated lifting mechanism, which is not used as a protection technical point. The lower end of the telescopic cylinder 7 passes through the concave frame 6 and is fixedly connected with a lifting plate 8. The front end of the lifting plate 8 The end is fixedly connected to the magnetic pressure plate 4, and the magnetic pressure column 5 is magnetically adsorbed and fixed to the lower surface of the magnetic pressure plate 4. The telescopic cylinder 7 can control the downward displacement of the magnetic pressure column 5 on the magnetic pressure plate 4 to realize the pressing operation of the test piece. The four corners of the upper side wall of the magnetic bottom plate 2 are magnetically adsorbed and connected with four magnetic positioning columns 9 for positioning the four corners of the test piece. They are placed and arranged according to the actual specifications of the test piece. The test base 1 is a hollow structure. An adjustment mechanism is provided in the test base 1. The two ends of the adjustment mechanism extend through and extend to the upper sides of the magnetic bottom plate 2 and are fixedly connected to two symmetrically arranged positioning plates 10. The front side wall of the test base 1 is fixedly connected with a control panel 11, which is respectively electrically connected to the telescopic cylinder 7 and one end of the adjustment mechanism, and an external power supply. The circuit involved is a prior art, which can be fully realized by those skilled in the art without further explanation, and the electrical equipment of the specific detection unit of the test piece is a common technology in this field, so no excessive explanation is given here.

[0023] The magnetic ejector pin 3 includes a copper ejector pin 301, which has good conductive effect. The lower end of the copper ejector pin 301 is fixedly connected with a magnetic block 302 to facilitate magnetic fixation. Secondly, the copper ejector pin 301 adopts an elastic telescopic structure to play a pressure-relieving role, which is a common technical means in this field.

[0024] Two symmetrically arranged positioning rods 20 are fixedly connected between the concave frame 6 and the test base 1 . Both positioning rods 20 are arranged to penetrate the lifting plate 8 , so that the displacement of the lifting plate 8 is stable.

[0025] Principle of this embodiment: In this device, according to the detection point of the workpiece to be tested, a magnetic ejector pin 3 can be placed on the magnetic base plate 2 for magnetic fixation, and a magnetic pressure column 5 can be placed on the magnetic pressure plate 4 for magnetic fixation to press and fix the workpiece to be tested. Four magnetic positioning columns 9 are placed on the magnetic base plate 2 for magnetic fixation according to the positions of the four corners of the workpiece to be tested, so that the four corners of the workpiece to be tested can be placed and positioned when the workpiece to be tested is placed. The device can be tested after power is turned on. It is convenient to arrange and easy to install and disassemble. It is suitable for testing workpieces of different specifications. It is easy to use and saves testing costs.

[0026] Embodiment 2:

[0027] like Figure 2 and Figure 3 As shown, on the basis of retaining all the technical features in the specific embodiment 1, in this embodiment: the adjustment mechanism includes a stepper motor 12 fixed to the inner wall of the test base 1, the main shaft end of the stepper motor 12 is fixedly connected to a worm 13, the inner wall of the test base 1 is rotatably connected to a worm wheel 15 meshing with the worm 13 through a rotating shaft 14, a cam member 16 is fixedly connected to the rotating shaft 14, both ends of the cam member 16 are hingedly connected to a rocker rod 17, the inner wall of the test base 1 is slidably connected to two symmetrically arranged slides 18, the two slides 18 are respectively hingedly connected to the two rocker rods 17, the far sides of the two slides 18 are fixedly connected to a U-shaped frame 19, the two U-shaped frames 19 respectively pass through the two sides of the test base 1 and are respectively fixedly connected to the two positioning plates 10.

[0028] The outer wall of the rotating shaft 14 is fixedly connected to the inner wall of the through hole of the worm wheel 15 and the cam member 16 by welding, and the connection is firm, and there is a gap between the worm wheel 15 and the cam member 16 .

[0029] A distance sensor 21 is installed on the side wall opposite to the two positioning plates 10 , and one end of the distance sensor 21 is electrically connected to the control panel 11 .

[0030] Principle of this embodiment: before placing the workpiece to be tested, the distance between the two positioning plates 10 is set on the control panel 11 according to the actual length of the workpiece to be tested. The distance sensor 21 can monitor the distance and start the stepping motor 12. Since the worm 13 is meshed with the worm wheel 15, the cam member 16 on the rotating shaft 14 is driven to rotate, which can pull the two rocker rods 17 to swing, thereby driving the U-shaped frame 19 fixed to the slide plate 18 to move, and the two positioning plates 10 can be driven to move until the distance between the two positioning plates 10 reaches a preset value and then stops working. When placing the workpiece to be tested, both sides of the workpiece to be tested can be positioned to facilitate more accurate and convenient placement, thereby improving detection efficiency and quality.

[0031] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A magnetic test stand, characterized in that: include: A test base (1), a magnetic bottom plate (2), a plurality of magnetic ejector pins (3), a magnetic pressure plate (4) and a plurality of magnetic pressure columns (5), wherein the magnetic bottom plate (2) is fixed to the upper surface of the test base (1), the magnetic ejector pins (3) are fixed to the magnetic bottom plate (2) by magnetic adsorption, the rear end of the upper side wall of the test base (1) is fixedly connected to a concave frame (6), the upper end of the concave frame (6) is fixedly connected to a telescopic cylinder (7), the lower end of the telescopic cylinder (7) passes through the concave frame (6) and is fixedly connected to a lifting plate (8), the front end of the lifting plate (8) is fixedly connected to the magnetic pressure plate (4), the magnetic pressure column (5) The magnetic suction pressure plate (4) is magnetically fixed to the lower surface of the magnetic suction pressure plate (4); the upper side wall of the magnetic suction bottom plate (2) is magnetically connected to four magnetic suction positioning columns (9) for positioning the four corners of the test piece; the test base (1) is a hollow structure; an adjustment mechanism is provided in the test base (1); the two ends of the adjustment mechanism extend through and extend to the upper sides of the magnetic suction bottom plate (2) and are fixedly connected to two symmetrically arranged positioning plates (10); the front side wall of the test base (1) is fixedly connected to a control panel (11); the control panel (11) is electrically connected to the telescopic cylinder (7) and one end of the adjustment mechanism, respectively.

2. A magnetic test stand as claimed in claim 1, characterized in that: The adjustment mechanism comprises a stepper motor (12) fixed to the inner wall of the test base (1), the main shaft end of the stepper motor (12) is fixedly connected to a worm (13), the inner wall of the test base (1) is rotatably connected to a worm wheel (15) meshing with the worm (13) via a rotating shaft (14), a cam member (16) is fixedly connected to the rotating shaft (14), both ends of the cam member (16) are hingedly connected to a swing rod (17), the inner wall of the test base (1) is slidably connected to two symmetrically arranged slide plates (18), the two slide plates (18) are respectively hingedly connected to the two swing rods (17), the two slide plates (18) are fixedly connected to the far sides of the two slide plates (18), the two U-shaped frames (19) respectively penetrate the two sides of the test base (1) and are respectively fixedly connected to the two positioning plates (10).

3. A magnetic test stand as claimed in claim 2, characterized in that: The outer wall of the rotating shaft (14) is fixedly connected to the inner wall of the through hole of the worm wheel (15) and the cam member (16) by welding.

4. A magnetic test stand as claimed in claim 1, characterized in that: The magnetic ejector pin (3) comprises a copper ejector pin (301), and the lower end of the copper ejector pin (301) is fixedly connected to a magnetic block (302).

5. The magnetic test stand according to claim 1, characterized in that: Two symmetrically arranged positioning rods (20) are fixedly connected between the concave frame (6) and the test base (1), and the two positioning rods (20) are both arranged to penetrate the lifting plate (8).

6. The magnetic test stand according to claim 1, characterized in that: A distance sensor (21) is installed on the side wall opposite to the two positioning plates (10), and one end of the distance sensor (21) is electrically connected to the control panel (11).

Images