Device for synchronously measuring inner and outer length and width of front and back surfaces of middle frame of mobile phone

Abstract

The utility model relates to the technical field of mobile phone middle frame visual inspection, in particular to a mobile phone middle frame front and back inner and outer length and width synchronous measuring device. A mobile phone middle frame front and back inner and outer length and width synchronous measurement device comprises a rack, a 3D camera module and a jig module are arranged on the rack, the 3D camera module is installed on a Y-axis linear module, the Y-axis linear module is arranged on an X-axis linear module, the jig module is provided with a guide frame and a jig assembly, a notch is formed in the end, close to the 3D camera module, of the guide frame, and the jig assembly is arranged on the guide frame. The gap is a measuring position for the 3D camera module to measure the front and back inner and outer length and width of a product on the jig assembly in the gap. According to the utility model, 3D point cloud imaging can be carried out on the internal and external lengths and widths of the whole product, and the number and installation of imaging hardware are not changed; when the device is used for measuring the internal and external lengths and widths of middle frame products with different sizes, only different jigs need to be replaced and the laser installation distance needs to be slightly adjusted, measurement can be realized without replacing a large number of parts, the design is reasonable, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of visual inspection of mobile phone middle frames, in particular to a device for synchronously measuring the length and width of the front and back sides of a mobile phone middle frame. Background Art

[0002] In the manufacturing process of mobile phones, the dimensional accuracy of the mobile phone middle frame is crucial to ensure the quality of the final product. At present, laser ranging sensors are mainly used to sense the distance from the length and width of the mobile phone middle frame to the sensor to convert the internal length and width dimensions. For example: Chinese patent announcement number CN221325393U discloses a flat stamping shell internal length and width measurement device, wherein the measuring mechanism is installed on the upper side of the PRC control box, including a body jig fixedly installed on the top of the PRC control box, a laser ranging sensor and a metal sensing sensor. The body jig is used to fix the product, and the metal sensing sensor is used to control the laser ranging sensor to measure the length and width of the product after the product touches it. This device has the following shortcomings:

[0003] 1. Large limitations: If you want to measure multiple points of the product to be tested, you need to deploy multiple sensors, and the size of the sensors will interfere, which may cause some points to be unable to be measured. In addition, since the sensors are fixedly installed, the height of the measured points is also fixed, and the inner length and width of the measuring points cannot be changed at will;

[0004] 2. Poor compatibility: It is not compatible with products of different sizes and heights. If you need to measure different products, you need to redesign and install sensors and fixtures, and replace a large number of parts. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a device for synchronously measuring the length and width of the front and back sides of the middle frame of a mobile phone.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a synchronous measurement device for the inside and outside length and width of the front and back sides of the middle frame of a mobile phone, including a frame, on which a 3D camera module and a jig module are provided, the 3D camera module is installed on a Y-axis linear module, the Y-axis linear module is arranged on an X-axis linear module and moves back and forth along the X-axis direction, the jig module has a guide frame and a jig assembly that moves along the length direction of the guide frame, the guide frame is provided with a notch at one end close to the 3D camera module, and the notch is a measurement position for the 3D camera module to measure the inside and outside length and width of the front and back sides of the product on the jig assembly located in the notch.

[0007] Further, the 3D camera module includes a mounting frame, an upper 3D camera group, and a lower 3D camera group. The mounting frame is in a "C" shape structure, and a bottom plate is fixed to its bottom. A lower mounting base is connected to the bottom plate, and a third 3D camera and a fourth 3D camera are mounted on the lower mounting base. The top of the mounting frame is connected to an upper mounting plate, and a first mounting seat and a second mounting seat are connected to the upper mounting plate. A first 3D camera and a second 3D camera are mounted on the first mounting seat, and a fifth 3D camera and a sixth 3D camera are mounted on the second mounting seat.

[0008] Furthermore, a third adjustment seat and a fourth adjustment seat are provided on the lower mounting base.

[0009] The third adjustment seat includes a third adjustment plate and a third adjustment frame. A plurality of adjustment holes in the X-axis direction are provided on the third adjustment plate. The third adjustment frame is in an L-shaped structure, its horizontal plate is connected to the third adjustment plate, and an arc-shaped adjustment hole is provided on its vertical plate and is connected to the third 3D camera.

[0010] The fourth adjustment seat includes a fourth adjustment plate and a fourth adjustment frame. A plurality of adjustment holes in the Y-axis direction are provided on the fourth adjustment plate. The fourth adjustment frame is in an L-shaped structure, its horizontal plate is connected to the fourth adjustment plate, and an arc-shaped adjustment hole is provided on its vertical plate and is connected to the fourth 3D camera.

[0011] Furthermore, a strip-shaped hole in the X-axis direction is provided at the position of the upper mounting plate corresponding to the first mounting seat, and a strip-shaped hole in the Y-axis direction is provided at the position corresponding to the second mounting seat. A first mounting frame and a second mounting frame are connected to the first mounting seat. The first mounting frame is in a T-shaped structure, and its vertical plate is connected to the first 3D camera. The second mounting frame is in an L-shaped structure, its horizontal plate is connected to the first mounting seat, and an arc-shaped adjustment hole is provided on its vertical plate and is connected to the second 3D camera.

[0012] A fifth mounting frame and a sixth mounting frame are connected to the second mounting seat. The fifth mounting frame is in a T-shaped structure, and its vertical plate is connected to the fifth 3D camera. The sixth mounting frame is in an L-shaped structure, its horizontal plate is connected to the second mounting seat, and an arc-shaped adjustment hole is provided on its vertical plate and is connected to the sixth 3D camera.

[0013] Further, a pair of slide rails and a driving component provided on one side of any slide rail are mounted on the top plate of the guiding frame. A slider that slides back and forth along the slide rail is provided on the slide rail. The driving component includes a servo motor and a ball screw. The servo motor is connected to the ball screw through a synchronous transmission component. The screw nut of the ball screw is connected to the fixture component through a connecting piece. The fixture component straddles the pair of slide rails and is connected to the slider.

[0014] Furthermore, the jig assembly includes a jig frame, a positioning block and a spinning part. The jig frame is provided with an installation groove, the positioning block of the positioning product is connected to the installation groove, and the spinning part of the limiting product is provided on the jig frame along the outer periphery of the installation groove.

[0015] Furthermore, the spinning part includes a support seat, a connecting shaft, a pressure arm and a disc. The support seat is connected to the jig frame. The connecting shaft passes through the jig frame and the support seat. The lower end of the connecting shaft is movably connected to the disc, and the upper end of the connecting shaft is connected to the rotating cap. The rotating cap has a cantilever, and the pressure arm is connected to the cantilever.

[0016] Furthermore, two limiting columns for limiting the travel of the rotating cap are provided at the top end of the support seat.

[0017] Furthermore, a sliding groove for the disc to move is provided on the top plate surface of the guide frame.

[0018] Furthermore, a lifting and rotating mechanism with a connecting shaft is provided below the top plate at one end of the guide frame away from the 3D camera module.

[0019] The beneficial effects of the utility model are:

[0020] The utility model can perform 3D point cloud imaging of the inner and outer length and width of the entire product, and the number and installation of the imaging hardware will not change. When measuring the inner and outer length and width of products with middle frames of different sizes, it is only necessary to replace different fixtures and slightly adjust the laser installation spacing. Measurement can be achieved without the need for a large number of replacement parts. The design is reasonable and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 It is a structural schematic diagram of the 3D camera module in the utility model.

[0024] Figure 3 yes Figure 2 Schematic diagram of the installation structure of the middle and lower 3D camera group.

[0025] Figure 4 yes Figure 3 Schematic diagram of the structure in another direction.

[0026] Figure 5 yes Figure 2 Schematic diagram of the installation structure of the 3D camera group in the upper middle part.

[0027] Figure 6 yes Figure 5 Schematic diagram of the structure in another direction.

[0028] Figure 7 It is a structural diagram of the fixture module in the utility model.

[0029] Figure 8 yes Figure 7 Schematic diagram of the structure of the jig assembly.

[0030] Figure 9 yes Figure 8 Schematic diagram of the enlarged structure at point A in the middle.

[0031] In the figure: 1. Frame;

[0032] 2. 3D camera module; 21. Mounting frame; 22. Bottom plate; 23. Lower mounting seat; 231. Third adjustment seat; 2311. Third adjustment plate; 2312. Third adjustment bracket; 232. Fourth adjustment seat; 2321. Fourth adjustment plate; 2322. Fourth adjustment bracket; 24. Third 3D camera; 25. Fourth 3D camera; 26. Upper mounting plate; 27. First mounting seat; 271. First mounting bracket; 272. Second mounting bracket; 28. Second mounting seat; 281. Fifth mounting bracket; 282. Sixth mounting bracket; 29. First 3D camera; 210. Second 3D camera; 211. Fifth 3D camera; 212. Sixth 3D camera;

[0033] 3. Fixture module; 31. Guide frame; 310. Notch; 311. Top plate; 3111. Slideway; 312. Support leg; 32. Fixture assembly; 321. Fixture frame; 3211. Mounting slot; 322. Positioning block; 323. Spinning element; 3231. Support seat; 32311. Limiting column; 3232. Connecting shaft; 3233. Pressing arm; 3234. Disc; 3235. Rotating cap; 33. Slide rail; 34. Drive assembly; 341. Servo motor; 342. Ball screw; 343. Synchronous transmission assembly; 344. Screw nut; 35. Slider;

[0034] 4. Y-axis linear module; 5. X-axis linear module; 6. Lifting and rotating mechanism. DETAILED DESCRIPTION

[0035] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] like Figure 1 As shown, a device for synchronously measuring the front and back, inside and outside length and width of a mobile phone midframe comprises a frame 1, mounted with a 3D camera module 2 and two jig modules 3. The 3D camera module is mounted on a Y-axis linear module 4, which is mounted on an X-axis linear module 5 and moves back and forth along the X-axis. The jig module 3 comprises a guide frame 31 and a jig assembly 32 that moves along the length of the guide frame 31. A notch 310 is defined at the end of the guide frame 31 near the 3D camera module 2. This notch 310 serves as the measuring position for the 3D camera module 2 to measure the front and back, inside and outside length and width of a product mounted on the jig assembly 32 within the notch 310. During operation, the two jig modules 3 can alternately load and unload materials for measurement.

[0039] like Figure 2As shown in the figure, the 3D camera module 2 includes a mounting frame 21, an upper 3D camera group, and a lower 3D camera group. The mounting frame 21 has a "C" - shaped structure, and a bottom plate 22 is fixed to its bottom. A lower mounting base 23 is connected to the bottom plate 22. A third 3D camera 24 and a fourth 3D camera 25 are mounted on the lower mounting base 23. The top of the mounting frame 21 is connected to an upper mounting plate 26. A first mounting seat 27 and a second mounting seat 28 are connected to the upper mounting plate 26. A first 3D camera 29 and a second 3D camera 210 are mounted on the first mounting seat 27. A fifth 3D camera 211 and a sixth 3D camera 212 are mounted on the second mounting seat 28.

[0040] As Figure 3 shown, the lower mounting base 23 is provided with a third adjusting seat 231 and a fourth adjusting seat 232. The third adjusting seat 231 includes a third adjusting plate 2311 and a third adjusting frame 2312. A number of adjusting holes in the X - axis direction are provided on the third adjusting plate 2311. The third adjusting frame 2312 has an L - shaped structure. Its horizontal plate is connected to the third adjusting plate 2311, and an arc - shaped adjusting hole is provided on its vertical plate and is connected to the third 3D camera 24.

[0041] As Figure 4 shown, the fourth adjusting seat 232 includes a fourth adjusting plate 2321 and a fourth adjusting frame 2322. A number of adjusting holes in the Y - axis direction are provided on the fourth adjusting plate 2321. The fourth adjusting frame 2322 has an L - shaped structure. Its horizontal plate is connected to the fourth adjusting plate 2321, and an arc - shaped adjusting hole is provided on its vertical plate and is connected to the fourth 3D camera 25.

[0042] As Figure 5 shown, the upper mounting plate 26 is provided with a strip - shaped hole in the X - axis direction corresponding to the position of the first mounting seat 27, and a strip - shaped hole in the Y - axis direction corresponding to the position of the second mounting seat 28. The first mounting seat 27 is connected with a first mounting frame 271 and a second mounting frame 272. The first mounting frame 271 has a T - shaped structure, and its vertical plate is connected to the first 3D camera 29. The second mounting frame 272 has an L - shaped structure. Its horizontal plate is connected to the first mounting seat 27, and an arc - shaped adjusting hole is provided on its vertical plate and is connected to the second 3D camera 210.

[0043] As Figure 6 shown, the second mounting seat 28 is connected with a fifth mounting frame 281 and a sixth mounting frame 282. The fifth mounting frame 281 has a T - shaped structure, and its vertical plate is connected to the fifth 3D camera 211. The sixth mounting frame 282 has an L - shaped structure. Its horizontal plate is connected to the second mounting seat 28, and an arc - shaped adjusting hole is provided on its vertical plate and is connected to the sixth 3D camera 212.

[0044] As Figure 7As shown, the guide frame 31 has a top plate 311 and support legs 312, a pair of slide rails 33 and a drive assembly 34 arranged on one side of any slide rail 33 are installed on the top plate 311, a slider 35 is provided on the slide rail 33 that slides back and forth along it, and the drive assembly 34 includes a servo motor 341 and a ball screw 342, the servo motor 341 is connected to the ball screw 342 through a synchronous transmission assembly 343 (synchronous belt and synchronous pulley), the screw nut 344 of the ball screw 342 is connected to the jig assembly 32 through a connecting piece, and the jig assembly 32 is arranged across a pair of slide rails 33 and connected to the slider 35.

[0045] like Figure 8 As shown, the jig assembly 32 includes a jig frame 321, a positioning block 322 and a spinning part 323. Two mounting slots 3211 are provided on the jig frame 321 (two products can be detected at the same time), and the positioning block 322 for positioning the product is connected to the mounting slot 3211. A spinning part 323 for limiting the product is provided on the jig frame 321 along the outer periphery of the mounting slot 3211.

[0046] like Figure 9 As shown, the spinning member 323 includes a support base 3231, a connecting shaft 3232, a pressure arm 3233, and a disc 3234. The support base 3231 is connected to the jig frame 321. The connecting shaft 3232 passes through the jig frame 321 and the support base 3231. Its lower end is movably connected to the disc 3234, and its upper end is connected to the rotating cap 3235. The rotating cap 3235 has a cantilever, and the cantilever is connected to the pressure arm 3233. Two limit posts 32311 are provided at the top of the support base 3231 to limit the travel of the rotating cap 3235.

[0047] In addition, the top surface of the guide frame 31 is provided with a slide groove 3111 for the disc 3234 to move. A lifting and rotating mechanism 6 connected to the shaft 3232 is provided below the top plate 311 at one end of the guide frame 31 away from the 3D camera module 2.

[0048] Specific working process: the product to be tested (i.e. the middle frame of the mobile phone) is loaded by the front-end mechanism and placed on the positioning block 322 of the fixture assembly 32 for positioning. The top rod of the lifting and rotating mechanism 6 lifts the disc 3234, driving the connecting shaft 3232 to rise, and the top rod is driven to rotate by the lifting and rotating mechanism 6, and then the connecting shaft 3232 is driven to rotate by the disc 3234, so that the pressure arm 3233 is restricted from continuing to rotate by the limit column 32311, the top rod descends, and the pressure arm 3233 buckles the product to be tested; the servo motor 341 is started, and the ball screw 342 is driven to rotate through the synchronous transmission assembly 343, and the screw nut 344 moves along the ball screw 342, driving the fixture assembly 32 to move along the slide rail 33 toward the 3D camera module 2. When it is close to the notch 310 (i.e. the position to be measured), the X-axis linear module 5 drives the Y-axis linear module 4 to move toward the position to be measured.

[0049] When the product moves to the measurement position, the X-axis linear module 5 drives the 3D camera module 2 to start moving along the long side direction of the product. The installation angles of the first 3D camera 29 and the fifth 3D camera 211 are facing the outer sides of the long and short sides of the product, and the installation angles of the second 3D camera 210 and the sixth 3D camera 212 are facing the inner sides of the long and short sides of the upper surface of the product. The first 3D camera 29 and the fifth 3D camera 211, the second 3D camera 210 and the sixth 3D camera 212 simultaneously scan and collect point cloud images of the inner and outer long sides of the upper surface of the product; the third 3D camera 24 and the fourth 3D camera 25 are installed at angles facing the long and short inner sides of the lower surface of the product, and the third 3D camera 24 and the fourth 3D camera 25 scan and collect point cloud images of the inner long side of the lower surface of the product; thus, the above six 3D cameras simultaneously scan along the length direction of the product to complete the point cloud image collection of the inner and outer sides of the long sides of the upper and lower surfaces of the product, and after obtaining the point cloud, the inner width and outer width of the product can be measured.

[0050] The Y-axis linear module 4 and the X-axis linear module 5 drive the 3D camera module 2 to the short-side measurement position. The Y-axis linear module 4 drives the 3D camera module 2 to begin moving along the short side of the product. At this point, the first 3D camera 29 and the fifth 3D camera 211 capture point clouds of the product's outer short side, while the second 3D camera 210 and the sixth 3D camera 212 capture point clouds of the product's upper short side. Simultaneously, the third 3D camera 24 and the fourth 3D camera 25 scan and capture point clouds of the inner short side of the product's lower short side. Thus, the simultaneous scanning of these six 3D cameras completes the acquisition of point cloud images of the inner short side of the product's upper and lower surfaces. Once the point clouds are generated, the product's inner and outer lengths can be measured, completing the measurement process.

[0051] The installation distances of the first mounting bracket 271 and the second mounting bracket 272 on the first mounting bracket 27, the fifth mounting bracket 281 and the sixth mounting bracket 282 on the second mounting bracket 28, and the third adjustment bracket 231 and the fourth adjustment bracket 232 are adjusted to solve the compatibility with products of different sizes. Debugging can be completed quickly without replacing hardware.

[0052] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can make modifications or deformations to the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.

Claims

1. A device for synchronously measuring the length and width of the front and back sides of a mobile phone middle frame, comprising a frame (1), characterized in that: The frame (1) is provided with a 3D camera module (2) and a fixture module (3). The 3D camera module (2) is installed on a Y-axis linear module (4), and the Y-axis linear module (4) is arranged on an X-axis linear module (5) and moves back and forth along the X-axis direction. The fixture module (3) has a guide frame (31) and a fixture component (32) that moves along the length direction of the guide frame (31). One end of the guide frame (31) close to the 3D camera module (2) is provided with a notch (310), and the notch (310) is a measurement position for the 3D camera module (2) to measure the front and back, inside and outside, length and width of the product on the fixture component (32) located in the notch (310).

2. The device for synchronously measuring the length and width of the front and back sides of a mobile phone middle frame according to claim 1, characterized in that: The 3D camera module (2) includes an installation frame (21), an upper 3D camera group and a lower 3D camera group. The installation frame (21) has a "C" - shaped structure, and a bottom plate (22) is fixed to its bottom. A lower mounting seat (23) is connected to the bottom plate (22). A third 3D camera (24) and a fourth 3D camera (25) are installed on the lower mounting seat (23). An upper mounting plate (26) is connected to the top of the installation frame (21). A first mounting seat (27) and a second mounting seat (28) are connected to the upper mounting plate (26). A first 3D camera (29) and a second 3D camera (210) are installed on the first mounting seat (27). A fifth 3D camera (211) and a sixth 3D camera (212) are installed on the second mounting seat (28).

3. The device for synchronously measuring the length and width of the front and back sides of a mobile phone middle frame according to claim 2, characterized in that: The lower mounting seat (23) is provided with a third adjusting seat (231) and a fourth adjusting seat (232). The third adjusting seat (231) includes a third adjusting plate (2311) and a third adjusting frame (2312). A plurality of adjusting holes in the X-axis direction are provided on the third adjusting plate (2311). The third adjusting frame (2312) has an L-shaped structure. Its horizontal plate is connected to the third adjusting plate (2311), and its vertical plate is provided with an arc-shaped adjusting hole and is connected to the third 3D camera (24). The fourth adjusting seat (232) includes a fourth adjusting plate (2321) and a fourth adjusting frame (2322). A plurality of adjusting holes in the Y-axis direction are provided on the fourth adjusting plate (2321). The fourth adjusting frame (2322) has an L-shaped structure. Its horizontal plate is connected to the fourth adjusting plate (2321), and its vertical plate is provided with an arc-shaped adjusting hole and is connected to the fourth 3D camera (25).

4. The device for synchronously measuring the length and width of the front and back sides of a mobile phone middle frame according to claim 2, characterized in that: The upper mounting plate (26) is provided with a strip-shaped hole in the X-axis direction corresponding to the position of the first mounting seat (27), and a strip-shaped hole in the Y-axis direction corresponding to the position of the second mounting seat (28). The first mounting seat (27) is connected with a first mounting frame (271) and a second mounting frame (272). The first mounting frame (271) has a T-shaped structure, and its vertical plate is connected to the first 3D camera (29). The second mounting frame (272) has an L-shaped structure. Its horizontal plate is connected to the first mounting seat (27), and its vertical plate is provided with an arc-shaped adjusting hole and is connected to the second 3D camera (210). The second mounting seat (28) is connected to a fifth mounting frame (281) and a sixth mounting frame (282), wherein the fifth mounting frame (281) is in a T-shaped structure, and a fifth 3D camera (211) is connected to its vertical plate, and the sixth mounting frame (282) is in an L-shaped structure, and a horizontal plate is connected to the second mounting seat (28), and an arc-shaped adjustment hole is provided on its vertical plate and is connected to the sixth 3D camera (212).

5. The device for synchronously measuring the length and width of the front and back sides of the mobile phone middle frame according to claim 1, characterized in that: A pair of slide rails (33) and a drive assembly (34) arranged on one side of any slide rail (33) are installed on the top plate (311) of the guide frame (31). A slider (35) sliding back and forth along the slide rail (33) is provided. The drive assembly (34) includes a servo motor (341) and a ball screw (342). The servo motor (341) is connected to the ball screw (342) through a synchronous transmission assembly (343). The screw nut (344) of the ball screw (342) is connected to the fixture assembly (32) through a connecting piece. The fixture assembly (32) is arranged across the pair of slide rails (33) and is connected to the slider (35).

6. The device for synchronously measuring the length and width of the front and back sides of the mobile phone middle frame according to claim 5, characterized in that: The jig assembly (32) comprises a jig frame (321), a positioning block (322) and a spinning part (323); the jig frame (321) is provided with a mounting groove (3211); the mounting groove (3211) is connected with a positioning block (322) for positioning a product; and the jig frame (321) is provided with a spinning part (323) for limiting a product along the periphery of the mounting groove (3211).

7. The device for synchronously measuring the length and width of the front and back sides of the mobile phone middle frame according to claim 6, characterized in that: The spinning part (323) comprises a support seat (3231), a connecting shaft (3232), a pressure arm (3233) and a disc (3234); the support seat (3231) is connected to the jig frame (321); the connecting shaft (3232) passes through the jig frame (321) and the support seat (3231); the lower end of the connecting shaft is movably connected to the disc (3234); the upper end of the connecting shaft is connected to a rotating cap (3235); the rotating cap (3235) has a cantilever, and the cantilever is connected to the pressure arm (3233).

8. The device for synchronously measuring the length and width of the front and back sides of the mobile phone middle frame according to claim 7, characterized in that: Two limiting posts (32311) for limiting the travel of the rotating cap (3235) are provided at the top of the support seat (3231).

9. The device for synchronously measuring the length and width of the front and back sides of the mobile phone middle frame according to claim 7, characterized in that: A sliding groove (3111) for the disc (3234) to move is provided on the surface of the top plate (311) of the guide frame (31).

10. The device for synchronously measuring the length and width of the front and back sides of the mobile phone middle frame according to claim 7, characterized in that: A lifting and rotating mechanism (6) with a connecting shaft (3232) is provided below the top plate (311) at one end of the guide frame (31) away from the 3D camera module (2).

Images