Mobile phone vibration motor cross beam circumferential resistance test fixture

Abstract

The utility model discloses a mobile phone vibration motor cross beam circumferential resistance test tool, and belongs to the technical field of test tools. The device comprises a bottom plate, the bottom plate is provided with a jig chassis, the jig chassis is provided with a product positioning block, a group of mounting plates and a turntable, each mounting plate is provided with a corresponding probe, and the group of mounting plates are movably arranged on the jig chassis and are circumferentially and uniformly distributed along the product positioning block; the rotating disc is rotatably arranged on the jig base plate and connected with the set of mounting plates in a matched mode, and the rotating disc rotates to drive the mounting plates to linearly move in the direction away from / towards the product positioning blocks. According to the utility model, based on the cooperative connection between the rotating disc and the mounting plates, the rotating disc is driven by an external force, so that a group of mounting plates can be driven to move, and then corresponding probes mounted on the mounting plates are driven to carry out synchronous detection on a plurality of detection points of a product; the overall structure is simple and operation is convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing tooling, and in particular relates to a fixture for testing the circumferential resistance of a mobile phone vibration motor beam. Background Art

[0002] Mobile phone vibration motors are important components of mobile phones and require resistance testing during their production and processing to ensure they meet performance requirements. Resistance testing requires testing the resistance values between each surface around the beam and the non-insulated surface. However, due to limitations such as its structural shape and the large number of test surfaces, it is difficult to perform effective and rapid testing. Therefore, a test fixture that can quickly test each test surface is urgently needed. Utility Model Content

[0003] In view of the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a mobile phone vibration motor beam circumferential resistance test fixture, which can realize rapid detection of each detection surface, and the overall structure is light and the operation is simple and fast.

[0004] The utility model provides the following technical solution: a mobile phone vibration motor beam circumferential resistance test fixture, comprising a base plate, a fixture chassis provided on the base plate, a product positioning block, a group of mounting plates and a turntable provided on the fixture chassis, each mounting plate is installed with a corresponding probe, a group of mounting plates can be movably arranged on the fixture chassis, and are uniformly distributed circumferentially along the product positioning block; the turntable can be rotatably arranged on the fixture chassis, and is cooperatively connected with the group of mounting plates. The rotation of the turntable can drive the mounting plates to move linearly away from / toward the product positioning block.

[0005] Furthermore, a sink structure is provided on the fixture chassis, the product positioning block is arranged in the middle of the sink structure, a group of slide rails are provided around the product positioning block, and the mounting plate is slidably fitted on the corresponding slide rails, on which a follower rod is provided.

[0006] Furthermore, a group of support columns are provided on the edge of the sink structure, and the upper parts of the support columns are provided with step surfaces for supporting the turntable.

[0007] Furthermore, the turntable is provided with a group of arc grooves eccentric to the center of the turntable, and the driven rods are inserted into the corresponding arc grooves.

[0008] Furthermore, the turntable is provided with a set of avoidance grooves concentrically arranged with the center of the turntable; and the support columns are inserted into the corresponding avoidance grooves.

[0009] Furthermore, a handle is provided on the outer side of the turntable.

[0010] Furthermore, a cover plate is provided above the turntable, and the cover plate is fixed on the upper end surfaces of a group of support columns.

[0011] Furthermore, a through hole is provided on the side of the product positioning block for the probe to pass through, a positioning groove is provided thereon to match the boundary contour of the product, and a through groove is provided on one side of the positioning groove to facilitate the product to be taken / placed.

[0012] Furthermore, a detection plate is provided on the bottom plate, and a detection point connected to the probe is provided on the detection plate.

[0013] By adopting the above technology, compared with the existing technology, the beneficial effects of the present invention are as follows:

[0014] 1) In this utility model, based on the cooperative connection between the turntable and the mounting plate, the turntable can be driven by external force to drive a group of mounting plates to move, thereby driving the corresponding probes installed on the mounting plates to perform simultaneous inspections on multiple inspection points of the product; the overall structure is simple and the operation is convenient and fast;

[0015] 2) In the present invention, the arc-shaped slot is provided, and its eccentricity with the center of the turntable is utilized to convert the rotational motion of the turntable into the linear motion of the mounting block, thereby achieving rapid detection of the probe;

[0016] 3) In the present invention, the support column can not only support the turntable for rotation, but also fix the cover plate, thus achieving quick installation of the turntable and the cover plate. The avoidance groove concentric with the center of the turntable can ensure that the turntable does not interfere with the support column when rotating.

[0017] 4) In this utility model, the product positioning block is provided with positioning grooves and through grooves, which facilitates the quick positioning, placement and removal of products;

[0018] 5) In the present invention, by providing the detection board, the contact position of the resistance detection device can be replaced from the product to the detection point position on the detection board, thereby increasing the operating space of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the utility model after the cover is hidden;

[0021] Figure 3 This is a schematic diagram of the overall structure of the utility model after the cover plate and the turntable are hidden;

[0022] Figure 4 This is a schematic diagram of the structure of the assembly of the cover plate, turntable and support column of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the turntable of the utility model;

[0024] Figure 6 This is a schematic structural diagram of the positioning block of the product of the present utility model;

[0025] Figure 7 This is an assembly structural diagram of the mounting plate of the present utility model;

[0026] Figure 8 This is a schematic structural diagram of the support column of the present utility model;

[0027] Figure 9 This is a schematic diagram of the detection points of the product of the present utility model. The resistance detection is the resistance value between the detection point and the insulating surface. Specific embodiments

[0028] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the specification drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0029] On the contrary, the present utility model covers any substitutions, modifications, equivalent methods and solutions made within the spirit and scope of the present utility model defined by the claims. Further, in order to enable the public to have a better understanding of the present utility model, in the following detailed description of the present utility model, some specific details are described in detail. Those skilled in the art can fully understand the present utility model without the description of these details.

[0030] Please refer to Figures 1-8 , a circumferential resistance test fixture for a mobile phone vibration motor crossbeam, including a bottom plate 1, on which a fixture chassis 2 is placed. A sunken groove structure is provided in the middle of the fixture chassis 2; a product positioning block 3 is fixedly installed at the central position of the sunken groove structure. The product positioning block 3 is used to position and place the product. Four slide rails are arranged around the product positioning block 3, and the four slide rails are evenly spaced circumferentially towards the product positioning block 3. Each slide rail is slidably connected with a mounting plate 4 through a slider. Positive probes are fixedly installed on the four mounting plates 4, and a negative probe is fixed on one of the mounting plates 4. A detection plate is provided on the bottom plate 1, and a negative detection point and four positive detection points corresponding to each probe are provided on the detection plate.

[0031] Specifically, four support columns 6 are provided at the edge of the sunken groove structure, and a stepped surface 601 is provided on the upper part thereof. A turntable 5 is rotatably placed on the four stepped surfaces 601. A cover plate 7 is fixedly installed on the top end surfaces of the four support columns 6. The cover plate 7 protects the internal parts on the one hand and is used to limit the turntable in the vertical direction on the other hand.

[0032] Specifically, four arc-shaped grooves 502, four relief grooves 503 and multiple weight-reducing holes are formed in the turntable 5; both the arc-shaped groove 502 and the relief groove 503 are through-groove structures, the arc-shaped groove 502 is eccentrically arranged with respect to the center of the turntable 5, and the relief groove 503 is concentrically arranged with respect to the center of the turntable 5; a handle 501 is provided on the outer side of the turntable 5.

[0033] Specifically, a driven rod 4 is fixed on the upper end surface of the mounting plate 4, and the driven rod 4 is inserted into the corresponding arc-shaped groove 502 in a matching manner. When the turntable 5 rotates, the mounting plate 4 is driven to move away from or towards the product positioning block 3 through the matching structure between the eccentric arc-shaped groove 502 and the driven rod 4, so that the probes on each mounting plate 4 perform resistance detection on the detection surfaces around the product placed on the product positioning block 3.

[0034] Specifically, through holes for the probes to pass through are formed in the side of the product positioning block 3, positioning grooves matching the boundary contour of the product are formed thereon, and a through groove for conveniently taking / placing the product is formed on one side of the positioning groove.

[0035] The working process of the jig of the present utility model is as follows:

[0036] The wires at the tails of the probes are respectively connected to the detection points on the detection board. The product is inserted into the product positioning block 3, and the handle 501 is rotated to drive the mounting plate 4 to move through the slider, thereby driving the probes to move forward to contact the product; then a special resistance testing device is used to test the resistance values of the upper detection positions 1-4# at the detection points respectively; then the product is rotated 180° to detect the resistance values of the lower detection positions 5-8# respectively.

[0037] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A mobile phone vibration motor beam circumferential resistance test fixture, characterized in that: It includes a bottom plate (1), on which a fixture chassis (2) is provided. On the fixture chassis (2), there are product positioning blocks (3), a group of mounting plates (4) and a turntable (5). Each mounting plate (4) is equipped with corresponding probes. The group of mounting plates (4) is movably arranged on the fixture chassis (2) and is circumferentially evenly distributed along the product positioning blocks (3). The turntable (5) is rotatably arranged on the fixture chassis (2), and is cooperatively connected with the group of mounting plates (4). When the turntable (5) rotates, it can drive the mounting plates (4) to move linearly away from / towards the product positioning blocks (3).

2. A mobile phone vibration motor beam circumferential resistance test fixture according to claim 1, characterized in that: A sunk groove structure is formed on the fixture chassis (2). The product positioning blocks (3) are arranged in the middle of the sunk groove structure. A group of slide rails are provided around the product positioning blocks (3). The mounting plates (4) are slidably arranged on the corresponding slide rails and are provided with driven rods (401).

3. A mobile phone vibration motor beam circumferential resistance test fixture according to claim 2, characterized in that: A group of support columns (6) are provided at the edge of the sunk groove structure. A step surface (601) for supporting the turntable (5) is provided at the upper part of the support columns (6).

4. A mobile phone vibration motor beam circumferential resistance test fixture according to claim 3, characterized in that: A group of arc-shaped grooves (502) eccentric to the center of the turntable (5) are formed on the turntable (5). The driven rods (401) are inserted into the corresponding arc-shaped grooves (502).

5. A circumferential resistance test fixture for the crossbeam of a mobile phone vibration motor according to claim 3, characterized in that, A group of avoidance grooves (503) concentric with the center of the turntable (5) are formed on the turntable (5). The support columns (6) are inserted into the corresponding avoidance grooves (503).

6. The circumferential resistance test fixture for the crossbeam of a mobile phone vibration motor according to claim 3, wherein, A handle (501) is provided on the outer side of the turntable (5).

7. A mobile phone vibration motor beam circumferential resistance test fixture according to claim 1, characterized in that: A cover plate (7) is provided above the turntable (5). The cover plate (7) is fixed on the upper end faces of the group of support columns (6).

8. A circumferential resistance test fixture for the crossbeam of a mobile phone vibration motor according to claim 1, characterized in that, Through holes for the probes to pass through are formed on the side of the product positioning blocks (3). Positioning grooves matching the boundary contour of the product are formed on them. A through groove for facilitating the taking / placement of the product is formed on one side of the positioning groove.

9. A circumferential resistance test fixture for the crossbeam of a mobile phone vibration motor according to claim 1, characterized in that, A detection plate is provided on the bottom plate (1). Detection points connected to the probes are provided on the detection plate.

Images