Middle frame variation detection mechanism

Abstract

The utility model discloses a middle frame variation detection mechanism, and relates to the technical field of middle frame detection. Comprising an operation table and a middle frame, a positioning mechanism, a first moving module and a second moving module are fixedly connected to the operation table, the first moving module and the second moving module are arranged on the rear side and the right side of the positioning mechanism respectively, and testing mechanisms are arranged on the tops of the first moving module and the second moving module; a detection mechanism is further arranged on the operation table. According to the equipment, the first moving module and the second moving module are used for driving the testing mechanism to move, orientation testing is carried out on the middle frame structure, during testing, the rotating shaft middle frame is placed on the positioning mechanism to be positioned, the rotating shaft middle frame cannot move, the stability of detection data is improved, and the testing efficiency is improved. And then a screw stepping motor and a tension sensor on the testing mechanism are used for applying a certain force value to the rotating shaft middle frame, and a laser displacement sensor is used for detecting the variable of the size of the middle frame, so that the accuracy of a detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of middle frame detection, in particular to a middle frame variation detection mechanism. Background Art

[0002] A midframe is a structural frame typically located inside a device. Its primary function is to secure and protect the device's internal components, preventing them from loosening or becoming damaged. The structure of the midframe varies depending on the device's needs; it can be a simple metal frame or a complex composite structure. In electronic devices, the midframe connects the various components, ensuring proper operation. After production, the midframe undergoes stress testing to ensure quality.

[0003] Existing middle frame detection modules are usually unable to effectively fix the middle frame. During the test process, the middle frame is prone to positional displacement, which is not conducive to the detection work and is also prone to detection errors. In addition, the tension sensor installed on the existing detection module is usually far away from the middle frame product being tested. The contact displacement detection is used to test the middle frame virtual position, and the detection accuracy is not high. Utility Model Content

[0004] The purpose of the utility model is to provide a middle frame variation detection mechanism, which solves the technical problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a middle frame variation detection mechanism, comprising an operating table and a middle frame, wherein a positioning mechanism, a first mobile module, and a second mobile module are fixedly connected to the operating table, wherein the first mobile module and the second mobile module are respectively arranged on the rear side and the right side of the positioning mechanism, and a testing mechanism is provided on the top of each of the first mobile module and the second mobile module;

[0006] The operating table is also provided with a detection mechanism, the number of the detection mechanisms is two, and the two detection mechanisms are fixedly mounted on the front side and the left side of the positioning mechanism respectively;

[0007] The middle frame includes a lower frame and an upper frame, the lower frame is hinged to the upper frame, a limiting hole is provided on the lower frame, both the lower frame and the upper frame are provided with clamping holes, and a round hole is provided on the upper frame, and the round hole is located above the limiting hole.

[0008] Preferably, the positioning mechanism includes a base plate, a vertical plate is symmetrically connected to the top of the base plate, the inner wall of the vertical plate is fixedly connected to a slide cylinder 1, the output end of the slide cylinder 1 is fixedly connected to a connecting plate, the outer wall of the connecting plate away from the connecting plate is fixedly connected to a rotating cylinder, the output end of the rotating cylinder is fixedly connected to a clamping block, a support plate 1 is fixedly connected between the two vertical plates, a movable groove is provided on the support plate 1, a positioning pin is provided on the top of the support plate 1, and the positioning pin is located on the outside of the movable groove.

[0009] Preferably, the outer wall of the vertical plate is symmetrically connected to the slide cylinder 2, the front side walls of the two slide cylinders 2 are fixedly connected to the fixed plate 1, and the top of the fixed plate 1 is fixedly connected to the clamping block.

[0010] Preferably, the testing mechanism includes a mounting plate, the top of the mounting plate is fixedly connected to a vertical plate, the upper end of the vertical plate is fixedly connected to a top plate, the top of the top plate is fixedly connected to a guide rail, a movable plate is slidably connected to the guide rail, the top of the movable plate is fixedly connected to a fixed block, the front side wall of the fixed block is fixedly connected to a tension sensor, the end of the tension sensor away from the fixed block is fixedly connected to a push-pull rod, and the front end of the push-pull rod is fixedly connected to a pin.

[0011] Preferably, the bottom of the movable plate is fixedly connected to a positioning plate, the top of the mounting plate is fixedly connected to a lead screw stepper motor, and the output end of the lead screw stepper motor is threadedly connected to the inner wall of the positioning plate.

[0012] Preferably, the detection mechanism includes a horizontal plate, the top of the horizontal plate is fixedly connected to the support plate 2, the outer wall of the support plate 2 is fixedly connected to the slide cylinder 3, the output end of the slide cylinder 3 is fixedly connected to the fixed plate 2, and the top of the fixed plate 2 is fixedly connected to the laser displacement sensor.

[0013] Preferably, a handle is fixedly connected to the upper frame.

[0014] Compared with related technologies, the middle frame variation detection mechanism provided by the present invention has the following beneficial effects:

[0015] 1. The utility model provides a middle frame variation detection mechanism. This device uses mobile module 1 and mobile module 2 to drive the test mechanism to move and perform orientation testing on the middle frame structure. During the test, the rotating shaft middle frame is placed on the positioning mechanism for positioning so that it does not move, thereby improving the stability of the test data. The screw stepper motor and tension sensor on the test mechanism then apply a certain force value to the rotating shaft middle frame, and the laser displacement sensor is used to detect the variables of the middle frame size, thereby improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the positioning mechanism of the present utility model;

[0018] Figure 3 This is a schematic structural diagram of the middle frame of the utility model in a closed state;

[0019] Figure 4 This is a structural diagram of the middle frame of the present invention in an expanded state;

[0020] Figure 5 For the utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 6 This is a structural diagram of the testing mechanism of the present utility model.

[0022] In the figure: 1. Operating table; 2. Positioning mechanism; 201. Bottom plate; 202. Slide cylinder 1; 203. Connecting plate; 204. Rotating cylinder; 205. Vertical plate; 206. Support plate 1; 207. Slide cylinder 2; 208. Fixed plate 1; 209. Clamping block; 210. Movable groove; 211. Pressing block; 212. Positioning pin; 3. Middle frame; 301. Lower frame; 302. Upper frame; 303. Round hole; 304. Clamping hole; 305. Handle; 306. Limiting hole; 4. Mobile module one; 5. Testing mechanism; 501. Mounting plate; 502. Screw stepper motor; 503. Positioning plate; 504. Guide rail; 505. Movable plate; 506. Fixed block; 507. Tension sensor; 508. Push-pull rod; 509. Pin; 510. Vertical plate; 511. Top plate; 6. Testing mechanism; 601. Horizontal plate; 602. Support plate two; 603. Slide cylinder three; 604. Fixed plate two; 605. Laser displacement sensor; 7. Mobile module two. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Example:

[0025] See also Figures 1-6The utility model provides a technical solution: a middle frame variation detection mechanism, comprising an operating platform 1 and a middle frame 3, wherein a positioning mechanism 2, a mobile module 1 4, and a mobile module 2 7 are fixedly connected to the operating platform 1, the mobile module 1 4 and the mobile module 2 7 are respectively arranged on the rear side and the right side of the positioning mechanism 2, and a testing mechanism 5 is provided on the top of the mobile module 1 4 and the mobile module 2 7;

[0026] The operating table 1 is further provided with a detection mechanism 6, the number of which is two, and the two detection mechanisms 6 are fixedly installed on the front side and the left side of the positioning mechanism 2 respectively;

[0027] The middle frame 3 includes a lower frame 301 and an upper frame 302. The lower frame 301 and the upper frame 302 are hinged. A limit hole 306 is provided on the lower frame 301. Both the lower frame 301 and the upper frame 302 are provided with a locking hole 304. A circular hole 303 is provided on the upper frame 302. The circular hole 303 is located above the limit hole 306. A handle 305 is fixedly connected to the upper frame 302. The handle 305 facilitates flipping the upper frame 302 for convenient testing.

[0028] In this embodiment, the device uses the mobile module 1 4 and the mobile module 2 7 to drive the test mechanism 5 to move, and then tests the upper and lower structures of the middle frame 3 (i.e., the lower frame 301 and the upper frame 302). During the test, the rotating shaft middle frame 3 is placed on the positioning mechanism 2 for positioning so that it does not move. Then, the screw stepper motor 502 and the tension sensor 507 on the testing mechanism 5 are used to apply a certain force value to the rotating shaft middle frame 3, and the laser displacement sensor 605 is used to detect the variables of the size of the middle frame 3 with high accuracy.

[0029] In this embodiment, the positioning mechanism 2 includes a base plate 201, a vertical plate 205 is symmetrically connected to the top of the base plate 201, the inner wall of the vertical plate 205 is fixedly connected to the slide cylinder 1 202, the output end of the slide cylinder 1 202 is fixedly connected to the connecting plate 203, the outer wall of the connecting plate 203 away from the connecting plate 203 is fixedly connected to the rotating cylinder 204, the output end of the rotating cylinder 204 is fixedly connected to the pressing block 211, a support plate 1 206 is fixedly connected between the two vertical plates 205, a movable groove 210 is provided on the support plate 1 206, a positioning pin 212 is provided on the top of the support plate 1 206, and the positioning pin 212 is located on the outside of the movable groove 210, the outer wall of the vertical plate 205 is symmetrically connected to the slide cylinder 207, the front side walls of the two slide cylinders 207 are fixedly connected to the fixed plate 1 208, and the top of the fixed plate 1 208 is fixedly connected to the clamping block 209;

[0030] After the middle frame 3 is placed in the positioning mechanism 2, the positioning pin 212 is used to clamp the clamping hole 304 on the lower frame 301. After the slide cylinder 1 202 pushes the clamping block 211 to extend out of the limiting hole 306, the rotating cylinder 204 drives the clamping block 211 to rotate, so that the clamping block 211 is horizontal to the inner side of the circular hole 303, completing the downward pressing action on the lower frame 301, and then the slide cylinder 207 is used to drive the clamping block 209 to move forward and backward to limit the lower frame 301 left and right, thereby positioning the middle frame 3 on the support plate 1 206.

[0031] In this embodiment, the testing mechanism 5 includes a mounting plate 501, the top of the mounting plate 501 is fixedly connected to a vertical plate 510, the upper end of the vertical plate 510 is fixedly connected to a top plate 511, the top of the top plate 511 is fixedly connected to a guide rail 504, a movable plate 505 is slidably connected to the guide rail 504, the top of the movable plate 505 is fixedly connected to a fixed block 506, the front side wall of the fixed block 506 is fixedly connected to a tension sensor 507, the end of the tension sensor 507 away from the fixed block 506 is fixedly connected to a push-pull rod 508, and the front end of the push-pull rod 508 is fixedly connected to a pin 509; the bottom of the movable plate 505 is fixedly connected to a positioning plate 503, the top of the mounting plate 501 is fixedly connected to a lead screw stepper motor 502, and the output end of the lead screw stepper motor 502 is threadedly connected to the inner wall of the positioning plate 503;

[0032] The testing mechanism 5 is provided with installation and movement conditions by moving module 1 4 and moving module 2 7. During the test, the positioning plate 503 is driven to move back and forth by starting the screw stepper motor 502, so that the pin 509 at the bottom end of the push-pull rod 508 is against the upper frame 302. The force value is accurately measured by the tension sensor 507. After reaching the set force value, the screw stepper motor 502 stops running and subsequent testing is carried out.

[0033] In this embodiment, the detection mechanism 6 includes a horizontal plate 601, the top of the horizontal plate 601 is fixedly connected to the second support plate 602, the outer wall of the second support plate 602 is fixedly connected to the third slide cylinder 603, the output end of the third slide cylinder 603 is fixedly connected to the second fixed plate 604, and the top of the second fixed plate 604 is fixedly connected to the laser displacement sensor 605;

[0034] The operating height of the laser displacement sensor 605 is controlled by the slide cylinder 3 603. In the process of applying force to the upper frame 302 through the push-pull rod 508, the laser displacement sensor 605 is used to detect the variables of the size of the middle frame 3 with high accuracy.

[0035] Working principle: This device uses the mobile module 1 4 and the mobile module 2 7 to drive the test mechanism 5 to move. During the test, first place the middle frame 3 on the positioning mechanism 2, and use the positioning pin 212 to clamp the clamping hole 304 on the lower frame 301. After the slide cylinder 1 202 pushes the clamping block 211 out of the limit hole 306, it drives the clamping block 211 to rotate by rotating the cylinder 204, so that the clamping block 211 is horizontal on the inner side of the circular hole 303, completing the downward pressing action on the lower frame 301, and then uses the slide cylinder 207 to drive the clamping block 209 to move back and forth, limiting the lower frame 301 left and right, thereby fixing the middle frame 3 is positioned on the support plate 206, and then the screw stepper motor 502 is started to drive the positioning plate 503 to move back and forth, so that the pin 509 at the bottom end of the push-pull rod 508 is against the upper frame 302. The force value is accurately measured by the tension sensor 507. After the set force value is reached, the screw stepper motor 502 stops running, and the laser displacement sensor 605 is used to detect the variable of the size of the middle frame 3. The tension sensor 507 is installed on the upper part of the screw stepper motor 502, closer to the rotating shaft middle frame 3 to be tested, and the contact displacement sensor is replaced by the laser displacement sensor 605, which has high detection accuracy.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A middle frame variation detection mechanism, comprising an operating table (1) and a middle frame (3), characterized in that: The operating table (1) is fixedly connected with a positioning mechanism (2), a mobile module 1 (4) and a mobile module 2 (7), wherein the mobile module 1 (4) and the mobile module 2 (7) are respectively arranged on the rear side and the right side of the positioning mechanism (2), and a testing mechanism (5) is arranged on the top of each of the mobile module 1 (4) and the mobile module 2 (7); The operating table (1) is further provided with a detection mechanism (6), the number of the detection mechanisms (6) is two, and the two detection mechanisms (6) are respectively fixedly mounted on the front side and the left side of the positioning mechanism (2); The middle frame (3) comprises a lower frame (301) and an upper frame (302), the lower frame (301) and the upper frame (302) being hinged, a limiting hole (306) being provided on the lower frame (301), a clamping hole (304) being provided on both the lower frame (301) and the upper frame (302), and a circular hole (303) being provided on the upper frame (302), the circular hole (303) being located above the limiting hole (306).

2. The middle frame variation detection mechanism according to claim 1, characterized in that: The positioning mechanism (2) includes a base plate (201), a vertical plate (205) is symmetrically connected to the top of the base plate (201), a slide cylinder (202) is fixedly connected to the inner wall of the vertical plate (205), an output end of the slide cylinder (202) is fixedly connected to a connecting plate (203), an outer wall of the connecting plate (203) away from the connecting plate (203) is fixedly connected to a rotating cylinder (204), an output end of the rotating cylinder (204) is fixedly connected to a pressing block (211), a support plate (206) is fixedly connected between the two vertical plates (205), a movable groove (210) is provided on the support plate (206), a positioning pin (212) is provided on the top of the support plate (206), and the positioning pin (212) is located outside the movable groove (210).

3. The middle frame variation detection mechanism according to claim 2, characterized in that: The outer wall of the vertical plate (205) is symmetrically connected to the slide cylinder 2 (207), the front side walls of the two slide cylinders 2 (207) are fixedly connected to the fixed plate 1 (208), and the top of the fixed plate 1 (208) is fixedly connected to the clamping block (209).

4. The middle frame variation detection mechanism according to claim 1, characterized in that: The testing mechanism (5) comprises a mounting plate (501), the top of the mounting plate (501) is fixedly connected to a vertical plate (510), the upper end of the vertical plate (510) is fixedly connected to a top plate (511), the top of the top plate (511) is fixedly connected to a guide rail (504), a movable plate (505) is slidably connected to the guide rail (504), the top of the movable plate (505) is fixedly connected to a fixed block (506), the front side wall of the fixed block (506) is fixedly connected to a tension sensor (507), the end of the tension sensor (507) away from the fixed block (506) is fixedly connected to a push-pull rod (508), and the front end of the push-pull rod (508) is fixedly connected to a pin (509).

5. The middle frame variation detection mechanism according to claim 4, characterized in that: The bottom of the movable plate (505) is fixedly connected to a positioning plate (503), the top of the mounting plate (501) is fixedly connected to a screw stepping motor (502), and the output end of the screw stepping motor (502) is threadedly connected to the inner wall of the positioning plate (503).

6. The middle frame variation detection mechanism according to claim 1, characterized in that: The detection mechanism (6) includes a horizontal plate (601), the top of the horizontal plate (601) is fixedly connected to a support plate 2 (602), the outer wall of the support plate 2 (602) is fixedly connected to a slide cylinder 3 (603), the output end of the slide cylinder 3 (603) is fixedly connected to a fixed plate 2 (604), and the top of the fixed plate 2 (604) is fixedly connected to a laser displacement sensor (605).

7. The middle frame variation detection mechanism according to claim 1, characterized in that: A handle (305) is fixedly connected to the upper frame (302).

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