Electronic screen dismounting jig

Abstract

The utility model relates to an electronic screen dismounting jig, which is configured to separate a screen and a watchcase of an electronic product, and comprises a machine table; the first clamp device is arranged on the machine table, the first clamp device comprises a plurality of clamping jaws, and the clamping jaws are configured to jointly clamp the screen; the second clamp device is arranged on the machine table, the second clamp device comprises two clamping arms which are oppositely arranged, and the two clamping arms are configured to clamp the watchcase together; and the power device is arranged on the machine table, and the power device is in transmission connection with the second clamp device to drive the clamping arm to rotate in a reciprocating mode. According to the electronic screen disassembling jig, the multiple clamping jaws are used for clamping the screen together, then the two clamping arms are used for clamping the watchcase, the power device is used for driving the clamping arms to rotate so as to drive the watchcase to rotate, and after the rotation direction is changed repeatedly for several times, adhesive glue between the screen and the watchcase can be pulled to be loose; especially for electronic products with high back adhesive viscosity, the disassembly success rate can be greatly improved through repeated pulling and loosening for multiple times.

Description

Technical Field

[0001] The present application relates to the technical field of electronic screen disassembly, and in particular to an electronic screen disassembly jig. Background Art

[0002] With the advancement of science and technology, electronic products have developed rapidly, bringing people a convenient life experience. The touch screens of smartphones, smart watches and tablets on the market use capacitive screens. During overshoot, the screens may be scratched or even broken due to bumps. After the screen is damaged, it is necessary to disassemble and replace it with a new screen in time. The traditional screen removal process uses a hot air gun to assist in degumming, and uses a lifting rod to expand the gap before removing the screen. The above operations are all done manually, which requires high technology. If the heating is uneven or the operation process is slightly careless, it is very easy to damage the screen. In addition, some of them use suction to adsorb the screen for disassembly, and the success rate is low for products with high adhesive backing. Utility Model Content

[0003] The present application provides an electronic screen disassembly jig to solve the problem of low efficiency and complex operation of electronic screen disassembly.

[0004] The electronic screen disassembly jig according to the present application is used to separate the screen and case of an electronic product, and includes:

[0005] Machine;

[0006] A first clamping device is disposed on the machine platform, the first clamping device includes a plurality of clamping claws, and the plurality of clamping claws are configured to clamp the screen together;

[0007] A second clamping device is disposed on the machine platform, the second clamping device comprises two clamping arms disposed opposite to each other, and the two clamping arms are configured to clamp the watch case together;

[0008] The power device is arranged on the machine platform; wherein the power device is transmission-connected with the second clamp device to drive the clamping arm to rotate back and forth.

[0009] According to the electronic screen disassembly jig of the present application, the machine includes a casing, the casing defines an installation cavity, the power device is arranged in the installation cavity, the casing is provided with a guide groove, and the clamping arm can move in the guide groove along the circumferential direction of the guide groove.

[0010] Optionally, the power device includes an electric motor and a transmission assembly, the transmission assembly includes a worm wheel and a worm that mesh with each other, the electric motor, the worm and the worm wheel are sequentially connected in transmission, and the clamping arm is connected to the worm wheel.

[0011] Optionally, a plurality of sensors are provided on a wall surface of the housing facing the installation cavity, the plurality of sensors are arranged at intervals along the guide groove, the sensors are electrically connected to the motor, and the sensors are configured to sense the position of the clamping arm.

[0012] Optionally, a baffle is provided on the clamping arm, the sensor is configured as a slot-type photoelectric sensor, and the baffle can be moved into and out of a detection slot of the slot-type photoelectric sensor.

[0013] According to the electronic screen disassembly jig of the present application, a clamping block and a sliding groove are provided on the clamping arm, the clamping block includes a guide portion and a clamping portion that are connected to each other, the guide portion is movably provided in the sliding groove, the clamping portion is configured to clamp the watch case, and a locking piece is also provided on the clamping arm, which is movably used to stop or avoid the clamping block.

[0014] Optionally, the watch case is provided with a watch lug, and the clamping portion is provided with a first limiting sub-portion and a second limiting sub-portion connected to each other, the first limiting sub-portion is configured to be clamped in the watch lug, and the second limiting sub-portion is configured to be held against the side wall of the watch case.

[0015] Optionally, the clamping block also includes a connecting portion, which connects the guide portion and the clamping portion. The clamping arm also defines an air avoidance groove, which is connected to the sliding groove. The connecting portion is located in the air avoidance groove. A threaded hole is provided on the side wall of the air avoidance groove. The locking piece is passed through the threaded hole. One end of the locking piece located in the air avoidance groove can stop or avoid the connecting portion.

[0016] According to the electronic screen disassembly jig of the present application, the clamping claw includes a first limiting portion and a second limiting portion connected to each other, the first limiting portion is configured to abut against the side surface of the screen, and the second limiting portion is configured to abut against the top surface of the screen.

[0017] According to the electronic screen disassembly jig of the present application, the first clamp device also includes a chuck and at least one rotating part, a first bevel gear and a plane thread are respectively provided on both sides of the chuck, the clamping jaws include a mating portion, the mating portion cooperates with the plane thread, the chuck can be rotated to make multiple clamping jaws move synchronously centrifugal or centrifugal, the rotating part includes a clamping hole and a second bevel gear, the second bevel gear is meshed with the first bevel gear, and the clamping hole is configured to clamp a wrench.

[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0019] The electronic screen disassembly jig provided in the embodiment of the present application utilizes a plurality of clamping claws to clamp the screen together, and then utilizes two clamping arms to clamp the case, and utilizes a power device to drive the clamping arms to rotate, thereby driving the case to rotate. By changing the direction repeatedly, the adhesive between the screen and the case can be loosened. Especially for electronic products with high viscosity of the back adhesive, the success rate of disassembly can be greatly improved after repeated loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are configured to explain the principles of the present utility model.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0023] Figure 1 A three-dimensional diagram of an electronic screen disassembly jig provided in an embodiment of the present application;

[0024] Figure 2 A side view of an electronic screen disassembly jig provided in an embodiment of the present application;

[0025] Figure 3 A top view of an electronic screen disassembly jig provided in an embodiment of the present application;

[0026] Figure 4 A three-dimensional image from another angle of an electronic screen disassembly jig provided in an embodiment of the present application;

[0027] Figure 5 A three-dimensional image from another angle of an electronic screen disassembly jig provided in an embodiment of the present application;

[0028] Figure 6 A three-dimensional diagram of the partial structure of an electronic screen disassembly jig provided in an embodiment of the present application;

[0029] Figure 7 A top view of a partial structure of an electronic screen disassembly jig provided in an embodiment of the present application;

[0030] Figure 8 A three-dimensional diagram of a clamping portion of an electronic screen disassembly jig provided in an embodiment of the present application;

[0031] Fig. 9 A three-dimensional diagram of the clamping jaws of an electronic screen disassembly jig provided in an embodiment of the present application.

[0032] Description of reference numerals:

[0033] Electronic screen disassembly jig 1, machine platform 10, housing 11, guide groove 12,

[0034] The first clamp device 20, the clamping claw 21, the matching portion 211, the first limiting portion 212, the second limiting portion 213, the chuck 22, the first bevel gear 221, the plane thread 222, the rotating member 23, the clamping hole 231, the second bevel gear 232,

[0035] The second clamp device 30, the clamping arm 31, the blocking piece 32, the clamping block 33, the guide portion 331, the clamping portion 332, the first limiting sub-portion 3321, the second limiting sub-portion 3322, the connecting portion 333, the locking member 35,

[0036] Power device 40, electric motor 41, transmission assembly 42, worm gear 421, worm 422,

[0037] Sensor 50, slot type photoelectric sensor 51,

[0038] Wrench 60,

[0039] Case 2, screen 3. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0041] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0042] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0043] like Figure 1-Figure 4 As shown, the electronic screen disassembly jig 1 according to the embodiment of the present application is used to separate the screen 3 and the case 2 of the electronic product, and includes a machine 10, a first clamp device 20, a second clamp device 30 and a power device 40.

[0044] Specifically, the first clamping device 20 is arranged on the machine 10, and the first clamping device 20 includes a plurality of clamping jaws 21, and the plurality of clamping jaws 21 are configured to clamp the screen 3 together; the second clamping device 30 is arranged on the machine 10, and the second clamping device 30 includes two clamping arms 31 arranged opposite to each other, and the two clamping arms 31 are configured to clamp the watch case 2 together; the power device 40 is arranged on the machine 10, and the power device 40 is transmission-connected to the second clamping device 30 to drive the clamping arms 31 to rotate reciprocatingly.

[0045] In detail, the electronic screen disassembly jig 1 utilizes a plurality of clamping claws 21 to clamp the screen 3, and then utilizes two clamping arms 31 to clamp the case 2, and utilizes a power device 40 to drive the clamping arms 31 to rotate, thereby driving the case 2 to rotate, and by changing the direction of the clamping arms 31 repeatedly several times, the adhesive between the screen 3 and the case 2 can be loosened, especially for electronic products with high viscosity of the back adhesive, after repeated loosening, the success rate of disassembly can be greatly improved.

[0046] The power device 40 includes an electric motor 41 or a cylinder, and the electric motor 41 is usually selected to drive the clamping arm 31 .

[0047] According to the electronic screen disassembly jig 1 of the embodiment of the present application, the screen 3 is clamped by the clamping claws 21, and then the shell is clamped by the clamping arms 31 to drive the shell to reciprocate and thus loosen the glue. This can reduce the difficulty of disassembling the electronic screen 3, improve the success rate of disassembling the electronic screen 3, and simplify the structural setting of the electronic screen disassembly jig 1.

[0048] like Figure 1 and Figure 3 As shown, according to the electronic screen disassembly jig 1 of the embodiment of the present application, the machine 10 includes a housing 11, the housing 11 defines an installation cavity, the power device 40 is arranged in the installation cavity, and an arc-shaped guide groove 12 is provided on the housing 11, and the clamping arm 31 can move in the guide groove 12 along the circumferential direction of the guide groove 12.

[0049] In detail, the machine 10 includes a casing 11, which defines an installation cavity. The power device 40 is arranged in the installation cavity, which can isolate and protect the power device 40, thereby ensuring the stable operation of the structure and protecting the user from harm. An arc-shaped guide groove 12 is provided on the casing 11, and the clamping arm 31 moves in the guide groove 12 along the circumferential direction of the guide groove 12. The guide groove 12 plays a role in avoiding the clamping arm 31. The movement of the clamping arm 31 itself under the drive of the power device 40 is to rotate around the center of the case 2 as the rotation center. Therefore, the arc-shaped guide groove 12 can well avoid the clamping arm 31, thereby avoiding interference.

[0050] like Figure 4 As shown, in some embodiments, the power device 40 includes a motor 41 and a transmission assembly 42, the transmission assembly 42 includes a worm wheel 421 and a worm 422 that mesh with each other, the motor 41, the worm 422 and the worm wheel 421 are sequentially connected in transmission, and the clamping arm 31 is connected to the worm wheel 421.

[0051] In detail, the motor 41, the worm 422 and the worm wheel 421 are connected in sequence, so that the motor 41 can drive the worm 422 to rotate, the rotation of the worm 422 drives the worm wheel 421 to rotate, and the rotation of the worm wheel 421 can drive the clamping arm 31 to rotate. By utilizing this matching relationship, the rotation process of the worm wheel 421 belongs to self-rotation, which can ensure that the clamping arm 31 always rotates with the same center point as the center of rotation during the rotation process, thereby avoiding damage to the electronic product.

[0052] like Figure 4 As shown, in a specific embodiment, the output shaft of the motor 41 is connected to the worm 422, the worm 422 is meshed with the worm wheel 421, and the two clamping arms 31 are respectively connected to the worm wheel 421. The rotation of the worm wheel 421 drives the two clamping arms 31 to rotate. By changing the rotation direction of the motor 41, the rotation direction of the clamping arms 31 can be controlled.

[0053] like Figure 5-Figure 7 As shown, in some embodiments, a plurality of sensors 50 are provided on a side wall of the housing 11 facing the installation cavity, and the plurality of sensors 50 are arranged at intervals along the guide groove 12 . The sensors 50 are electrically connected to the motor 41 , and the sensors 50 sense the position of the clamping arm 31 .

[0054] In detail, a plurality of sensors 50 are provided on a side wall of the housing 11 facing the installation cavity, and the plurality of sensors 50 are arranged at intervals along the guide groove 12, so that the sensor 50 can sense the position of the clamping arm 31, and the sensor 50 is electrically connected to the motor 41, so that the sensor 50 can feed back the determined position information to the motor 41, and the motor 41 can determine whether the rotation direction needs to be changed according to the position information, thereby avoiding a single rotation in the same direction that is too large and causes incomplete peeling of the electronic product.

[0055] The sensor 50 may be a slot-type photoelectric sensor 51 or a proximity switch-type sensor 50, which is not limited in the present application.

[0056] like Figure 5 As shown, in some embodiments, a baffle 32 is provided on the clamping arm 31 , and the sensor 50 is configured as a slot-type photoelectric sensor 51 . The baffle 32 can be moved into and out of the detection slot of the slot-type photoelectric sensor 51 .

[0057] In detail, the slot-shaped photoelectric sensor 51 is a beam-type photoelectric switch, also called a U-shaped photoelectric switch, and is an infrared sensing photoelectric product. It is composed of an infrared transmitting tube and an infrared receiving tube. The detection slot determines the strength of the sensing receiving model and the distance of the received signal. It uses light as a medium, and receives and converts the infrared light between the light-emitting body and the light-receiving body to detect the position of the baffle 32, and then determines the position of the clamping arm 31. In this way, the use of the slot-shaped photoelectric sensor 51 to detect the baffle 32 is not affected by the material of the baffle 32, has a wide range of applications, and has a fast response speed, which can facilitate the motor 41 to change the direction in time.

[0058] like Figure 3 , Figure 4 as well as Figure 5 As shown, according to the electronic screen disassembly jig 1 of the embodiment of the present application, a clamping block 33 and a sliding groove are provided on the clamping arm 31, the clamping block 33 includes a guide portion 331 and a clamping portion 332 that are interconnected, the guide portion 331 is movably disposed in the sliding groove, the clamping portion 332 is configured to clamp the watch case 2, and a locking member 35 is also provided on the clamping arm 31, the locking member 35 is movably disposed to stop or avoid the clamping block 33.

[0059] In detail, the clamping arm 31 is provided with a clamping block 33 and a sliding groove. The clamping block 33 includes a guide portion 331 and a clamping portion 332 that are connected to each other. The guide portion 331 is movably arranged in the sliding groove. In this way, the cooperation of the guide portion 331 and the sliding groove can guide and limit the movement of the guide portion 331, and then guide and limit the clamping portion 332. The position of the clamping portion 332 can be adjusted to facilitate the clamping portion 332 to clamp or release the watch case 2. When the clamping portion 332 moves to the position for clamping the watch case 2, the locking member 35 is moved to make the locking member 35 stop against the clamping block 33, thereby locking the clamping block 33. After the watch case 2 and the screen 3 are disassembled, the locking member 35 can be moved to make the locking member 35 avoid the clamping block 33, thereby the movable clamping portion 332 releases the watch case 2 for easy removal.

[0060] like Figure 8 As shown, in some embodiments, the watch case 2 is provided with a watch ear, and the clamping portion 332 is provided with a first limiting sub-portion 3321 and a second limiting sub-portion 3322 which are interconnected, the first limiting sub-portion 3321 is configured to be snapped into the watch ear, and the second limiting sub-portion 3322 is configured to be held against the side wall of the watch case 2.

[0061] Specifically, the clamping portion 332 is provided with a first limiting sub-portion 3321 and a second limiting sub-portion 3322 which are interconnected. When the clamping portion 332 clamps the watch case 2, the first limiting sub-portion 3321 is engaged in the watch ear, and the second limiting sub-portion 3322 is supported on the side wall of the watch case 2. In this way, the friction between the clamping portion 332 and the watch case 2 can be further increased, which can enable the watch case 2 to sufficiently overcome the force of the glue and avoid slipping, thereby improving the reliability of the clamping portion 332 clamping the watch case 2.

[0062] like Figure 2-Figure 4 As shown, in some embodiments, the clamping block 33 also includes a connecting portion 333, which connects the guide portion 331 and the clamping portion 332. The clamping arm 31 also defines an air avoidance groove, which is connected to the sliding groove. The connecting portion 333 is located in the air avoidance groove, and a threaded hole is provided on the side wall of the air avoidance groove. The locking member 35 is passed through the threaded hole, and one end of the locking member 35 located in the air avoidance groove can stop or avoid the connecting portion 333.

[0063] In detail, the clamping block 33 also includes a connecting portion 333, which connects the guide portion 331 and the clamping portion 332. The connecting portion 333 is located in the air-avoiding groove. When the guide portion 331 moves in the sliding groove, the connecting portion 333 moves synchronously in the air-avoiding groove. The locking member 35 is threadedly connected to the inner wall of the threaded hole. The rotation of the locking member 35 can make one end of the locking member 35 located in the air-avoiding groove stop or avoid the connecting portion 333. The connecting portion 333 is set in the air-avoiding groove, and the two ends of the air-avoiding groove are open, which can facilitate the user to observe whether the locking member 35 is moved into place in time, thereby improving reliability. In addition, the air-avoiding groove also facilitates the user to contact the connecting portion 333 to move and adjust the position of the connecting portion 333, thereby adjusting the position of the clamping block.

[0064] When the clamping part 332 needs to clamp the watch case 2, after adjusting the position of the connecting part 333 to move into place, the locking member 35 is used to rotate the stop connecting part 333. When the watch case 2 needs to be removed, the locking member 35 is rotated to make the locking member 35 avoid the clamping part 332, thereby moving the clamping part 332 to facilitate the removal of the watch case 2.

[0065] like Fig. 9 As shown, according to the electronic screen disassembly jig 1 of the embodiment of the present application, the clamp 21 includes a first limiting portion 212 and a second limiting portion 213 connected to each other, the first limiting portion 212 is configured to abut against the side surface of the screen 3, and the second limiting portion 213 is configured to abut against the top surface of the screen 3.

[0066] In detail, the clamp 21 includes a first limiting portion 212 and a second limiting portion 213 which are connected to each other. When the clamp 21 clamps the screen 3, the first limiting portion 212 is used to abut against the side of the screen 3, and the second limiting portion 213 is used to abut against the top surface of the screen 3, that is, the largest surface of the screen 3 facing away from the case 2. This can limit the freedom of the screen 3 from multiple directions, while increasing the contact area between the clamp 21 and the screen 3, thereby increasing the friction between the clamp 21 and the screen 3, improving the reliability of the clamp 21 in fixing the screen 3, and thereby reducing the difficulty of disassembly.

[0067] like Figure 4 As shown, according to the electronic screen disassembly jig 1 of the embodiment of the present application, the first clamp device 20 also includes a chuck 22 and at least one rotating member 23, and a first bevel gear 221 and a plane thread 222 are respectively provided on both sides of the chuck 22, and the jaw 21 includes a mating portion 211, and the mating portion 211 cooperates with the plane thread 222. The chuck 22 can be rotated to allow multiple jaws 21 to move synchronously centrifugally or centrifugally, and the rotating member 23 includes a clamping hole 231 and a second bevel gear 232, and the second bevel gear 232 is meshed with the first bevel gear 221, and the clamping hole 231 is configured to clamp the wrench 60.

[0068] In detail, after the wrench 60 is inserted into the clamping hole 231, the wrench 60 is rotated to drive the second bevel gear 232 to rotate, and the rotation of the second bevel gear 232 can drive the first bevel gear 221 to rotate, and then drive the chuck 22 to rotate, and the rotation of the chuck 22 drives the flat thread 222 to rotate so that the multiple jaws 21 move centrifugally or centrifugally. By changing the rotation direction of the wrench 60, the centrifugal or centrifugal movement of the jaws 21 can be controlled. The cooperation of the chuck 22 and the jaws 21 can improve the accuracy of clamping the electronic product and facilitate concentric alignment with the second clamp device 30.

[0069] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0070] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0071] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. An electronic screen disassembly jig, used to separate the screen and case of an electronic product, characterized in that: include: Machine; A first clamping device, disposed on the machine platform, the first clamping device comprising a plurality of clamping claws, the plurality of clamping claws being configured to clamp the screen together; A second clamping device, disposed on the machine platform, the second clamping device comprising two clamping arms disposed opposite to each other, the two clamping arms being configured to clamp the watch case together; A power device, arranged on the machine platform; Wherein, the power device is transmission-connected with the second clamp device to drive the clamping arm to rotate reciprocatingly.

2. The electronic screen disassembly jig according to claim 1, characterized in that: The machine platform comprises a casing, the casing defines an installation cavity, the power device is arranged in the installation cavity, the casing is provided with a guide groove, and the clamping arm can move in the guide groove along the circumferential direction of the guide groove.

3. The electronic screen disassembly jig according to claim 2, characterized in that: The power device comprises an electric motor and a transmission assembly, wherein the transmission assembly comprises a worm wheel and a worm that mesh with each other, the electric motor, the worm and the worm wheel are sequentially connected in transmission, and the clamping arm is connected to the worm wheel.

4. The electronic screen disassembly jig according to claim 3, characterized in that: A plurality of sensors are arranged on a wall surface of the housing facing the installation cavity. The plurality of sensors are arranged at intervals along the guide groove. The sensors are electrically connected to the motor and sense the position of the clamping arm.

5. The electronic screen disassembly jig according to claim 4, characterized in that: The clamping arm is provided with a baffle, the sensor is configured as a slot-type photoelectric sensor, and the baffle can be moved into and out of a detection slot of the slot-type photoelectric sensor.

6. The electronic screen disassembly jig according to claim 1, characterized in that: The clamping arm is provided with a clamping block and a sliding groove, the clamping block includes a guide portion and a clamping portion that are connected to each other, the guide portion is movably arranged in the sliding groove, the clamping portion is configured to clamp the watch case, and the clamping arm is also provided with a locking piece, the locking piece is movably used to stop or avoid the clamping block.

7. The electronic screen disassembly jig according to claim 6, characterized in that: The watch case is provided with a watch lug, and the clamping portion is provided with a first limiting sub-portion and a second limiting sub-portion connected to each other, the first limiting sub-portion is configured to be clamped in the watch lug, and the second limiting sub-portion is configured to be held against the side wall of the watch case.

8. The electronic screen disassembly jig according to claim 6, characterized in that: The clamping block also includes a connecting portion, which connects the guiding portion and the clamping portion. The clamping arm also defines an air avoidance groove, which is communicated with the sliding groove. The connecting portion is located in the air avoidance groove, and a threaded hole is provided on the side wall of the air avoidance groove. The locking member is passed through the threaded hole, and one end of the locking member located in the air avoidance groove can stop or avoid the connecting portion.

9. The electronic screen disassembly jig according to any one of claims 1 to 8, characterized in that: The clamping jaw includes a first limiting portion and a second limiting portion connected to each other, the first limiting portion is configured to abut against a side surface of the screen, and the second limiting portion is configured to abut against a top surface of the screen.

10. The electronic screen disassembly jig according to any one of claims 1 to 8, characterized in that: The first clamp device also includes a chuck and at least one rotating member, a first bevel gear and a plane thread are respectively provided on both sides of the chuck, the clamping jaw includes a mating portion, the mating portion cooperates with the plane thread, the chuck can be rotated to make the multiple clamping jaws move synchronously centrifugally or centrifugally, the rotating member includes a clamping hole and a second bevel gear, the second bevel gear is meshed with the first bevel gear, and the clamping hole is configured to clamp a wrench.

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