Mobile phone rear cover plate machining and positioning assembly

Abstract

The utility model discloses a mobile phone rear cover plate machining positioning assembly which comprises a base, a supporting plate is arranged on the base and comprises a fixed supporting plate and a movable supporting plate, a supporting plate adjusting part is arranged on the right side of the fixed supporting plate, the movable supporting plate is connected to the upper face of the supporting plate adjusting part, and a rear cover clamping part is arranged at the upper end of the fixed supporting plate and the upper end of the movable supporting plate. A fixed rear cover clamping part is located at the upper end of the fixed supporting plate, a movable rear cover clamping part is located at the upper end of the movable supporting plate, and the rear cover clamping parts clamp the mobile phone rear cover plate at the edges of the two sides of the mobile phone rear cover plate. Compared with the prior art, the utility model has the beneficial effects that the position of the movable support plate can be adjusted through the support plate adjusting part, so that the distance between the fixed support plate and the movable support plate can be adjusted, and the distance between the fixed support plate and the movable support plate can be adjusted to any size and the movable support plate is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone shell processing and positioning, in particular to a mobile phone rear cover processing and positioning component. Background Art

[0002] In addition to protecting the internal components of the mobile phone and preventing hard objects from leaving scratches on the mobile phone, the mobile phone back cover also beautifies the appearance of the mobile phone and improves the touch feel. Usually, some component holes need to be processed on the mobile phone back cover, such as the camera hole, and surface treatments such as polishing and frosting are also required. In the processing of the back cover, the mobile phone case needs to be positioned to facilitate processing and improve processing efficiency.

[0003] In the prior art, a positioning device for processing a mobile phone back cover is disclosed, and the document number is: CN212763010U. The device includes a base and a clamping assembly; a fixing rod is fixed on the base, and the fixing rod is movably connected to a movable base plate through a movable assembly, and the movable assembly includes a first fixing block and a rotating shaft. The upper end side of the fixing rod is provided with a through hole, and the rotating shaft is movably connected in the through hole. The first fixing block is fixed to the bottom side of the movable base plate, and the side of the first fixing block close to the fixing rod is fixedly connected to one end of the rotating shaft. The front and rear ends of the bottom side of the movable base plate are provided with a first support, and the fixed shaft inside the first support is movably connected to a first movable sleeve. The device can achieve rapid fixing, which is convenient for fixing back covers of different shapes and adjusting the angle of the fixed mobile phone back cover.

[0004] However, after the mobile phone cover is placed between the fixed plate and the movable clamping plate, since the mobile phone cover is in a suspended state and a certain pressure is inevitably applied to the cover when processing the cover, when the thickness of the cover is small, it is easy to cause the middle area of ​​the cover to bend downward and deform, and the processing quality cannot be guaranteed. Utility Model Content

[0005] The utility model aims to provide a processing and positioning component which can be applied to mobile phone covers of different specifications and will not easily deform the mobile phone covers when the mobile phone covers are processed.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mobile phone back cover processing and positioning component, characterized in that: it includes a base, a fixed support plate and a movable support plate are arranged on the base, the fixed support plate and the movable support plate are arranged parallel to each other, the lower end of the fixed support plate is fixedly connected to the base, the movable support plate is fixed to the support plate adjustment component, the support plate adjustment component can slide on the base, and the support plate adjustment component drives the movable support plate to move after sliding, so that the spacing between the fixed support plate and the movable support plate changes, the upper ends of the fixed support plate and the movable support plate are respectively provided with a fixed clamping component and a movable clamping component, the fixed clamping component and the movable clamping component are symmetrically arranged and have the same structure, the mobile phone back cover is clamped and positioned by the fixed clamping component and the movable clamping component, a support plate is arranged between the fixed support plate and the movable support plate, a support arm is arranged on the support plate, and the support arm supports the mobile phone back cover.

[0007] Furthermore, the support plate adjustment component includes a slide frame, the slide frame includes a frame plate, and a sliding claw is fixedly connected to each end of the frame plate. The two sliding claws are respectively slidably connected to two guide rails, and the lower surfaces of the two guide rails are fixedly connected to the base.

[0008] Furthermore, the frame plate is fixedly connected to the movable support plate on the upper surface, and a clamping assembly is inserted on the frame plate. The clamping assembly can be clamped on the guide rail to position the frame plate. There are two groups of clamping assemblies, and the two groups of clamping assemblies are symmetrically arranged and have the same structure.

[0009] Furthermore, the clamping assembly includes a friction plate, one side of the friction plate is provided with a rubber strip, the rubber strip is fixedly adhered to the side wall of the guide rail, and the other side of the friction plate is fixedly connected to the first guide rod.

[0010] Furthermore, the first guide rod is sleeved with a first sliding sleeve, a first spring is connected between the first sliding sleeve and the friction plate, the other end of the first guide rod is fixedly connected with a first transmission rod, and the first transmission rod passes through the frame plate and extends into the button box.

[0011] Furthermore, a first groove is formed on the lower surface of the button box, a button hole is formed on the side wall of the first groove, an unlocking button passes through the button hole, and the unlocking button is fixedly connected to the upper end of the first transmission rod in the first groove.

[0012] Furthermore, a second groove is provided on the upper surface of the button box, a locking button is installed in the second groove, a second spring is arranged between the locking button and the bottom surface of the second groove, a transmission rod hole is provided on the side wall of the second groove, a second transmission rod passes through the transmission rod hole, and one end of the second transmission rod is hinged to the side wall of the locking button.

[0013] Furthermore, a short shaft slot is provided in the middle of the second transmission rod, a short shaft is provided in the short shaft slot, one end of the short shaft is fixedly connected to a support rod, and the lower end of the support rod is fixedly connected to the frame plate;

[0014] Furthermore, the other end of the second transmission rod is sleeved with a third sliding sleeve, the lower end of the third sliding sleeve is hinged with a second guide rod, the second guide rod is sleeved with a second sliding sleeve, and the lower end of the second guide rod is provided with a positioning block.

[0015] Furthermore, the rear cover clamping component includes a flexible support roller, both ends of the flexible support roller are fixedly connected to roller brackets, the other end of the roller bracket is fixedly connected to the support plate, and the top end of the support plate is hinged with a pressure plate.

[0016] Compared with the prior art, the beneficial effect of the utility model is that the position of the movable support plate can be flexibly adjusted and positioned by sliding through the support plate adjustment component, so that the distance between the fixed support plate and the movable support plate is suitable for clamping mobile phone back covers of multiple specifications and lengths. At the same time, during the processing of the mobile phone cover plate, the mobile phone cover plate can be supported to prevent the middle area of ​​the mobile phone cover plate from bending and deforming downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a right view structural schematic diagram of the utility model;

[0019] Figure 3 It is a right side cross-sectional structural schematic diagram of the utility model;

[0020] Figure 4 It is a cross-sectional structural schematic diagram of the support plate adjustment component of the utility model;

[0021] Figure 5 It is a cross-sectional structural schematic diagram of the button box of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the rear cover clamping component of the utility model.

[0023] Figure 7 This is a schematic diagram of the support plate structure of the utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the movable flat support plate of the utility model when viewed from above;

[0025] In the figure: 1, base; 2, fixed support plate; 3, movable support plate; 4, support plate adjustment component; 401, guide rail; 402, sliding claw; 403, frame plate; 404, friction plate; 405, rubber strip; 406, first guide rod; 407, first sliding sleeve; 408, first spring; 409, first transmission rod; 410, button box component; 4101, button box; 4102, unlock button; 4103, lock button; 4104, second spring; 411, second transmission rod; 412, support rod; 413, third sliding sleeve; 414, second guide rod; 415, second sliding sleeve; 416, upper clamping block; 417, lower clamping block; 5, back cover clamping component; 501, flexible support roller; 502, roller bracket; 503, pressure plate; 6, mobile phone back cover. DETAILED DESCRIPTION

[0026] 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 of 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.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] See also Figures 1 to 6A processing and positioning assembly for a mobile phone rear cover plate comprises a base 1, which is a rectangular plate body. The base 1 can be installed on a processing machine tool. A support plate is arranged on the base 1, and the support plate comprises a fixed support plate 2 and a movable support plate 3. The fixed support plate 2 is a vertically arranged rectangular plate. The lower end of the fixed support plate 2 is fixedly connected to the upper surface of the base 1. A support plate adjustment component 4 is arranged on the right side of the fixed support plate 2. The upper side of the support plate adjustment component 4 is connected to the movable support plate 3. The movable support plate 3 is a vertically arranged rectangular plate. The support plate adjustment component 4 can adjust the position of the movable support plate 3. , so as to adjust the distance between the fixed support plate 2 and the movable support plate 3, the support plate adjustment component 4 can flexibly adjust the position of the movable support plate 3 in a sliding manner and position the movable support plate 3, and a rear cover clamping component 5 is arranged at the upper ends of the fixed support plate 2 and the movable support plate 3, and the rear cover clamping component includes a fixed clamping component and a movable clamping component, the fixed clamping component is located at the upper end of the fixed support plate 2, and the movable clamping component is located at the upper end of the movable support plate 3. The fixed clamping component and the movable clamping component are symmetrically arranged, and the rear cover clamping component 5 is used to clamp the rear cover plate 6 of the mobile phone;

[0031] The support plate adjustment component 4 includes a guide rail 401, which has two guide rails 401 and is arranged along the length direction of the base 1. The lower surface of the guide rail 401 is fixedly connected to the base 1. The two guide rails 401 are distributed in a mirror image. The guide rails 401 provide guidance for the movement of the movable support plate 3. A slide is arranged on the guide rail 401. The slide includes a frame plate 403. The frame plate 403 is a horizontally arranged straight plate. A sliding claw 402 is respectively arranged at both ends of the frame plate 403. The two sliding claws 402 are symmetrically distributed. The buckle is arranged on the two guide rails 401, and the sliding claw 402 can slide on the guide rails 401. The surface of the guide rails 401 and the contact surface of the sliding claw 402 and the guide rails 401 are all smooth surfaces, which is conducive to the sliding claw 402 sliding on the guide rails 401. The upper surface of the slide is fixedly connected to the movable support plate 3. The slide is interspersed with a clamping mechanism. There are two groups of clamping mechanisms. The two groups of clamping components are respectively set on the inner sides of the two guide rails 401. The two groups of clamping components are mirror-imaged and have the same structure.

[0032] The clamping assembly includes a friction plate 404, a friction plate with a relatively large surface roughness is fixed on one side of the friction plate 404, a rubber strip 405 is arranged between the friction plate and the guide rail 401, the rubber strip 405 is laid along the length direction of the guide rail 401, the rubber strip 405 is fixedly connected to the inner side wall of the guide rail 401, and the rubber strip 405 is used to increase the friction between the guide rail 401 and the friction plate. When the friction plate 404 is squeezed on the rubber strip 405, the slide is positioned to prevent it from moving. The other side of the friction plate 404 is fixedly connected to a first guide rod 406. The first guide rod 406 The first guide rod 406 is a straight rod arranged in a transverse direction, and has a smooth surface. A first sliding sleeve 407 is sleeved on the first guide rod 406. The first guide rod 406 can slide in the first sliding sleeve 407 along the length direction of the first guide rod 406. The first sliding sleeve 407 is fixedly connected to the bottom surface of the frame plate 403. A first spring 408 is arranged between the first sliding sleeve 407 and the friction plate 404. The first spring 408 is sleeved on the first guide rod 406. When the friction plate 404 is against the guide rail 401, the first spring 408 is compressed and has a restoring force, which can provide pressure for the friction plate 404 to squeeze the rubber strip 405. The first guide rod The other end of 406 is fixedly connected to a first transmission rod 409, and an unlocking button 4102 is arranged on the side of the upper end of the first transmission rod 409, and the unlocking button 4102 is located in a button box 4101, and the lower end of the button box 4101 is fixedly connected to the upper surface of the frame plate 403, and the button box 4101 is a rectangular box, and a first groove is provided on the bottom surface of the button box 4101, and the first groove is a square groove, which is open at the bottom and closed at the bottom, and button holes are provided on the sides of the first groove, and the button holes penetrate along the length direction of the first groove, and an unlocking button 4102 is arranged in the button box, and the ... The end of the button 4102 extends through the button hole to the outside of the button box 4101. A first through hole is opened at a position corresponding to the first groove on the frame plate 403. The first transmission rod 409 extends through the first through hole into the first groove and is fixedly connected with the end of the unlocking button 4102 in the first groove. When the unlocking button 4102 is pressed, power is transmitted to the friction plate 404 through the first transmission rod 409 and the first guide rod 406, so that the friction plate 404 moves away from the corresponding guide rail 401 and separates from the rubber strip 405, thereby releasing the fixation of the slide, so that the slide can slide freely along the guide rail 401.

[0033] A group of blocking blocks are also provided on the first guide rod 406, and the blocking blocks include an upper blocking block 416 and a lower blocking block 417. The lower blocking block 417 is fixedly connected to the rod wall of the first guide rod 406, and the upper end of the upper blocking block 416 is connected to the second guide rod 414, and the second guide rod 414 is a vertically set straight rod with a smooth rod wall. A second sliding sleeve 415 is sleeved on the second guide rod 414, and the sleeve opening of the second sliding sleeve 415 faces downward, and the lower end of the second sliding sleeve 415 is fixedly connected to the frame plate 403, and a blocking block hole and a blocking block groove structure are opened at the corresponding position on the frame plate 403. At this time, the second guide rod 414 vertically penetrates the frame plate to facilitate the movement of the blocking block thereon, and a third sliding sleeve 413 is hinged at the upper end of the second guide rod 414, and a The second transmission rod 411, initially, the second transmission rod 411 is a transversely arranged straight rod, with a short-axis slide groove in the middle, the short-axis slide groove runs through the width direction of the second transmission rod, a short axis is arranged in the short-axis slide groove, the short axis can slide in the short-axis slide groove and can rotate along its own central axis, one end of the short axis is fixedly connected to a support rod 412, the support rod 412 is a vertically arranged straight rod, the lower end of the support rod 412 is fixed on the frame plate 403, the support rod 412 and the second transmission rod 411 form a lever structure, the other end of the second transmission rod 411 passes through the button box 4101, and a locking button 4103 is hinged in the button box 4101, and a second groove is provided on the top surface of the button box 4101, the upper end of the second groove is open, and the bottom surface and the front surface of the second groove are The rear two sides are closed, but the left and right sides are provided with transmission rod holes. The second transmission rod 411 passes through the rod hole and extends into the second groove and is hinged to the side wall of the locking button 4103. A second spring 4104 is arranged between the lower end of the locking button 4103 and the bottom surface of the second groove. The second spring 4104 has a restoring force when compressed. The upper locking block 416 and the lower locking block 417 are both provided with a flat surface on one side and an arc surface on the other side. When the unlocking button 4102 is pressed, the first guide rod 406 slides in the first sliding sleeve 407 in the direction away from the guide rail 401. At this time, the first spring 408 is compressed between the friction plate 404 and the first sliding sleeve 407 and has a restoring force. The arc surface part of the lower locking block 417 is relative to the arc surface part of the upper locking block 416. The first guide rod 406 continues to move in this direction, and the lower locking plate pushes the upper locking plate to move upward along the arc surface. At this time, the second spring 4104 is compressed and has a restoring force. After crossing the arc surface, the upper locking block 416 will move downward under the thrust transmitted by the second spring 4104 through the second transmission rod 411 and the second guide rod 414, and the flat part of the upper locking block 416 will be in contact with the flat part of the lower locking block 417. At this time, although the first spring 408 has a restoring force, the upper locking block 416 and the lower locking block 417 are engaged and cannot restore the deformation, thereby keeping the friction plate 404 and the rubber strip 405 on the guide rail 401 in a separated state, so that the slide and the movable support plate 3 on the slide are in a free moving state.When the spacing between the movable support plate 3 and the fixed support plate 2 is adjusted and the movable support plate 3 needs to be fixed, the locking button 4103 is pressed, and the second spring 4104 is compressed. The second transmission rod 411 rotates under the support of the support rod 412, and the second guide rod 414 is driven by the second transmission rod 411 to move upward. Since the connection point between the second transmission rod 411 and the second guide rod 414 is misaligned during rotation, the second transmission rod 411 and the second guide rod 414 cannot be fixedly connected. 1 is provided with a third sliding sleeve 413 to compensate for the misalignment, the second guide rod 414 drives the upper blocking block 416 to move upward, the upper blocking block 416 and the lower blocking block 417 will be separated, the first spring 408 is in a compressed state during this period, when the upper blocking block 416 and the lower blocking block 417 are separated, it will immediately restore the deformation, and the restoring force pulls the lower blocking block 417 to move in the direction close to the guide rail 401, so that the friction plate 404 will be squeezed onto the rubber strip 405 of the guide rail 401, thereby fixing the slide and the movable support plate 3;,

[0034] The fixed clamping part and the movable clamping part have the same structure, both of which include a flexible support roller 501 and a pressure plate 503. The pressure plate 503 is located above the flexible support roller 501. When the rear cover plate 6 of the mobile phone is clamped and positioned, the rear cover plate of the mobile phone is located between the flexible support roller 501 and the pressure plate 503. The roller surface of the flexible support roller 501 has a certain degree of softness. When supporting the rear cover plate 6 of the mobile phone with a curved edge, it can well adapt to the curved surface shape to make the clamping more stable.

[0035] The above-mentioned flexible support roller 501 is also connected to a roller bracket 502, which is used to position the flexible support roller 501. Take the connection between the movable clamping component and the movable support plate 3 as an example: at this time, one end of the roller bracket 502 is axially connected to the flexible support roller 501, and the other end thereof is fixed on the movable support plate 3. The pressure plate 503 on the corresponding side is hinged to the top of the movable support plate 3 through a hinge shaft. The hinge shaft is vertically arranged, and the pressure plate 503 can rotate around the hinge shaft in a horizontal plane. A tightening nut is arranged at the upper end of the hinge shaft. Screwing the tightening nut can position the pressure plate 503. When placing the rear cover plate 6 of the mobile phone, first push the pressing plate 503 outward to prevent the rear cover plate 6 of the mobile phone from being blocked. After the flexible support roller 501 supports the edge of the rear cover plate 6 of the mobile phone, push the pressing plate 503 back. The pressing plate 503 will be pressed on the upper part of the rear cover plate 6 of the mobile phone. Then, screw the tightening nut. The pressing plate 503 will be pressed on the rear cover plate 6 of the mobile phone and slowly tighten the rear cover plate 6 of the mobile phone. When the pressing plate 503 is tightened, stop screwing the tightening nut. At this time, the pressing plate 503 and the flexible support roller 501 clamp the rear cover plate 6 of the mobile phone together.

[0036] When positioning the rear cover 6 of the mobile phone, first use the thumb and index finger to pinch the unlocking buttons 4102 on both sides of the button box 4101, and the two unlocking buttons will move toward the inside of the button box, and the power will be transmitted to the friction plate 404 through the first transmission rod and the first guide rod, and the friction plate 404 will be separated from the rubber strip 405 on the guide rail 401. At this time, the positioning of the slide and the movable support plate 3 on the slide is released, and the slide can be pushed to make the movable support plate 3 move freely along the guide rail 401, and the movable support plate 3 is moved to a distance that can be clamped between the fixed support plate 2 and the movable support plate 3. Hold the position of the mobile phone rear cover 6, then push away the pressure plate 503, and place the mobile phone rear cover 6 on the flexible support roller 501. During the placement process, you can also continue to slightly push the slide to adjust the distance between the flexible support rollers 501 to achieve the best distance to protect the mobile phone rear cover 6, then push the pressure plate 503 back and press it on the mobile phone rear cover 6 to complete the clamping of the mobile phone rear cover 6, then press the locking button 4103 on the button box 4101, the friction plate 404 will be pressed on the rubber strip 405, and the slide and the movable support plate 3 will be fixed.

[0037] Also, see Figure 1 , Figure 7 and Figure 8 As shown, a support plate 7 is further arranged between the fixed support plate 2 and the movable support plate 3, and the support plate 7 has a telescopic structure. The support plate 7 specifically includes a fixed flat support plate 701 and a movable flat support plate 702. The fixed flat support plate 701 is fixed on the fixed support plate 2, and the movable flat support plate 702 is fixed on the movable support plate 3. The movable flat support plate 702 is located above the fixed flat support plate 701, and the movable flat support plate 702 can move synchronously with the movable support plate 3. The fixed flat support plate 701 and the movable flat support plate 702 are respectively provided with a first support arm 704 and a second support arm 705. When the mobile phone cover is placed on the flexible support plate When the mobile phone cover is rolled up, the first support arm 704 and the second support arm 705 support the mobile phone cover. The movable flat support plate 702 is provided with a strip notch 706 extending along its length direction. The strip notch 706 extends from the free end of the movable flat support plate 702 to the fixed end. At this time, the first support arm 704 passes through the strip notch 706. When the spacing between the movable flat support plate 702 and the fixed flat support plate 701 changes, the first support arm 704 moves in the strip notch 706. There is a connection structure between the fixed flat support plate 701 and the movable flat support plate 702. The connection structure is as follows:

[0038] A limiting groove 707 is fixed on the lower surface of the movable flat support plate 702, and the cross section of the limiting groove 707 is a "convex" shape, and a limiting slider is fixed on the upper surface of the fixed flat support plate 701. The limiting slider is matched in the limiting groove 707, and the limiting groove 707 extends along the length direction of the strip-shaped notch 706. When the spacing between the movable flat support plate 702 and the fixed flat support plate 701 changes, the limiting slider moves in the limiting groove 707, but at this time, the fixed flat support plate 701 and the movable flat support plate 702 cannot be separated;

[0039] The above-mentioned first support arm 704 and second support arm 705 have the same structure, both of which include a bottom arm of a tubular structure, a compression return spring body is arranged in the bottom arm, and a top arm is arranged above the compression return spring body, and the top arm is inserted into the upper port of the bottom arm, so that the mobile phone cover can be supported by the first support arm 704 and the second support arm 705, avoiding the mobile phone cover from bending downward and deforming during processing.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mobile phone rear cover processing and positioning assembly, characterized in that: The base comprises a fixed support plate and a movable support plate, the fixed support plate and the movable support plate are arranged parallel to each other, the lower end of the fixed support plate is fixedly connected to the base, the movable support plate is fixed to the support plate adjustment component, the support plate adjustment component can slide on the base, and the support plate adjustment component drives the movable support plate to move after sliding, so that the distance between the fixed support plate and the movable support plate changes; A fixed clamping component and a movable clamping component are respectively provided at the upper ends of the fixed support plate and the movable support plate. The fixed clamping component and the movable clamping component are symmetrically arranged and have the same structure. The back cover of the mobile phone is clamped and positioned by the fixed clamping component and a support plate is provided between the fixed support plate and the movable support plate. A support arm is provided on the support plate to support the back cover of the mobile phone.

2. A mobile phone rear cover processing and positioning assembly according to claim 1, characterized in that: The support plate adjustment component includes a slide frame, which includes a frame plate. Both ends of the frame plate are fixedly connected with sliding claws, each sliding claw is slidably connected to the guide rail, and the lower surface of the guide rail is fixedly connected to the base.

3. A mobile phone rear cover processing and positioning assembly according to claim 2, characterized in that: The upper surface of the frame plate is fixedly connected to the movable support plate, and a clamping assembly is inserted on the frame plate. The clamping assembly is matched with the guide rail to position the frame plate.

4. A mobile phone rear cover processing and positioning assembly according to claim 3, characterized in that: The clamping assembly comprises a friction plate, one side of the friction plate is in contact with the guide rail, and the other side of the friction plate is fixedly connected with a first guide rod.

5. A mobile phone rear cover processing and positioning assembly according to claim 4, characterized in that: The first guide rod is sleeved with a first sliding sleeve, a first spring is connected between the first sliding sleeve and the friction plate, the other end of the first guide rod is fixedly connected with a first transmission rod, and the first transmission rod passes through the frame plate and extends into the button box.

6. A mobile phone rear cover processing and positioning assembly according to claim 5, characterized in that: The lower surface of the button box is provided with a first groove, the side wall of the first groove is provided with a button hole, an unlocking button passes through the button hole, and the unlocking button is fixedly connected to the upper end of the first transmission rod in the first groove.

7. A mobile phone rear cover processing and positioning assembly according to claim 5, characterized in that: A second groove is provided on the upper surface of the button box, a locking button is installed in the second groove, a second spring is arranged between the locking button and the bottom surface of the second groove, a transmission rod hole is provided on the side wall of the second groove, a second transmission rod passes through the transmission rod hole, and one end of the second transmission rod is hinged to the side wall of the locking button.

8. A mobile phone rear cover processing and positioning assembly according to claim 7, characterized in that: A short shaft slide groove is arranged in the middle of the second transmission rod, a short shaft is arranged in the short shaft slide groove, one end of the short shaft is fixedly connected to a support rod, and the lower end of the support rod is fixedly connected to the frame plate.

9. The mobile phone rear cover processing and positioning assembly according to claim 7, characterized in that: The other end of the second transmission rod is sleeved with a third sliding sleeve, the third sliding sleeve is hinged with a second guide rod, the second guide rod is sleeved with a second sliding sleeve, and a positioning block is arranged at the lower end of the second guide rod.

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