Adjustable device for disassembling Lens in PCBA

Abstract

The utility model particularly relates to an adjustable device for disassembling a Lens in a PCBA. The adjustable device comprises a base, a positioning workbench and an operation workbench, wherein the positioning workbench and the operation workbench are arranged on the two sides of the base respectively. The positioning workbench comprises a clamping mechanism so as to position the PCBA in a working state; the operation workbench comprises a push broach; the positioning workbench and the operation workbench are provided with a first displacement mechanism and a second displacement mechanism correspondingly, and the first displacement mechanism and the second displacement mechanism are used for driving the push broach to move relative to the clamping mechanism in the Y-axis direction and the Z-axis direction correspondingly. The operation workbench is provided with a third displacement mechanism used for driving the push broach to move relative to the clamping mechanism in the X-axis direction. One of the main conception of the utility model is that the push broach with a displacement function is utilized to realize the disassembly of the Lens on the PCBA board on the clamping mechanism, the control of the disassembly force of the push broach is realized through the degree of freedom of the X axis of the push broach, and the controllability and reliability of the disassembly of the Lens are further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical module maintenance technical field, concretely relates to a kind of adjustable device for Lens disassembly in PCBA. BACKGROUND

[0002] PCBA (Printed Circuit Board Assembly) refers to printed circuit board assembly, it includes the entire process of PCB (Printed Circuit Board, printed circuit board) empty board after SMT (Surface Mount Technology) and DIP (Dual In-line Package, through-hole insertion technology) plug-in, that is, PCBA refers to finished circuit board.In the optical field, Lens refers to lens or camera lens, which is a kind of transparent optical element capable of refracting light, used for focusing or diverging light, forming image, that is, Lens refers to lens assembly on PCBA board.

[0003] In the production and assembly process of optical module, in order to ensure the yield of optical module, optical module is often tested or changed.For optical module products with poor test or product process change, re-maintenance is often needed to meet the use requirements.In the optical module repair process, the Lens assembly on the PCBA board is bonded and cured using UV glue, manual separation is usually used in the prior art, on the one hand, the difficulty of disassembly is relatively large, which easily leads to the increase of labor cost, on the other hand, the intensity of manual disassembly is difficult to control, which easily damages other components on the PCBA board during disassembly, thereby causing PCBA repair parts to be scrapped.In addition, although some simple clamps for Lens disassembly are provided in the prior art, due to the different types of PCBA boards and clamping requirements, the compatibility and reusability are not high, so that the cost of clamp is increased. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of adjustable device for Lens disassembly in PCBA to the technical problems of difficult Lens disassembly, high scrap rate of manual disassembly and poor compatibility of conventional clamp in the prior art, at least has the advantages such as controllable disassembly process, convenient to use, practicality and good compatibility.

[0005] The utility model provides a kind of adjustable device for Lens disassembly in PCBA, comprising:

[0006] Base, and the positioning workbench and operating workbench separately arranged on the two sides of the base;

[0007] The positioning workbench includes clamping mechanism to position PCBA in working state;

[0008] The operation workbench comprises a pusher;

[0009] The positioning workbench and the operation workbench are respectively provided with first displacement mechanisms and second displacement mechanisms for driving the pusher to move relative to the clamping mechanism in the Y-axis direction and the Z-axis direction respectively.

[0010] The operation workbench is provided with a third displacement mechanism for driving the pusher to move relative to the clamping mechanism in the X-axis direction.

[0011] Specifically, one of the main concepts of the utility model is to use the pusher with displacement function to realize the disassembly of the Lens on the PCBA board of the clamping mechanism, to control the disassembly force of the pusher through the X-axis freedom of the pusher, and to improve the controllability and reliability of the Lens disassembly.

[0012] Further, the first displacement mechanism comprises a first fixed seat, a first driving mechanism arranged on the first fixed seat, and a first displacement carrier plate connected to the driving part of the first driving mechanism.

[0013] In the Z-axis direction, the first displacement carrier plate is slidingly connected to the first fixed seat.

[0014] Further, the clamping mechanism comprises a mounting block and a clamping mechanism arranged on the mounting block.

[0015] One end of the mounting block is connected to the first displacement carrier plate, and the other end is a working surface, the working surface comprises a mounting groove, and the mounting groove is used for placing the PCBA to limit the freedom of the PCBA in the X-axis direction.

[0016] In the X-axis direction, the working surface comprises a pad, and the shape of the pad is matched with the groove on the PCBA to limit the freedom of the PCBA in the Y-axis direction.

[0017] The clamping mechanism is arranged on both sides of the mounting groove, one side is a fixed chuck, and the other side is a movable chuck, the movable chuck has a rotating freedom to limit the freedom of the PCBA in the Z-axis direction in the working state.

[0018] Specifically, one of the main ideas of the utility model is that the structure of the clamping mechanism is designed, so that the three-coordinate freedom of the PCBA can be limited, so as to ensure that the PCBA is completely limited in the mounting groove, the Lens on the PCBA fixed by the clamping mechanism is easy to operate by the push knife, and the reliability of the Lens disassembly is improved. In addition, another idea of the utility model is that the Z-axis freedom of the PCBA is limited by the movable chuck, so that the PCBA is convenient to disassemble and assemble on the mounting groove, the feeding and discharging steps of the PCBA are simplified, and the difficulty of disassembling the Lens on the PCBA is reduced.

[0019] Further, the movable chuck comprises a pressing block, a screwing bolt and a spring;

[0020] The pressing block is corner-shaped, a bottom of one corner part is provided with a rotating shaft hole, a middle part is provided with a movable through hole, the rotating shaft hole is connected to the mounting block through a rotating shaft, and the movable through hole is used for penetrating the screwing bolt; and the shape of another corner part is matched with the plate surface of the PCBA.

[0021] The spring is sleeved on the screwing bolt and penetrates the movable through hole and abuts against the mounting block.

[0022] Optionally, the working surface is provided with a first adjusting groove and a second adjusting groove;

[0023] The first adjusting groove is opened along the direction of the Y-axis and is used for mounting the pad block.

[0024] The second adjusting groove is opened along the direction of the X-axis and is used for mounting the fixed chuck.

[0025] Specifically, another main idea of the utility model is that the positions of the pad block and the fixed chuck can be adjusted by the design of the first adjusting groove and the second adjusting groove, so that the adjustable device provided by the utility model can be compatible with PCBAs of different sizes, the reusability of the utility model is improved, and the design and manufacturing costs of the clamp are reduced.

[0026] Optionally, the second displacement mechanism comprises a second fixed seat, a second driving mechanism arranged on the second fixed seat, and a second displacement carrier plate connected to a driving part of the second driving mechanism.

[0027] In the Y-axis direction, the second displacement carrier plate is slidingly connected to the second fixed seat.

[0028] Further, the third displacement mechanism comprises a third fixed seat, a third driving mechanism arranged on the third fixed seat, and a third displacement carrier plate connected to a driving part of the third driving mechanism.

[0029] The third fixed seat is arranged on the second displacement carrier plate.

[0030] The third displacement carrier plate is slidably connected to the third fixed seat in the X-axis direction.

[0031] Further, the pusher knife comprises an integrally formed handle and a head.

[0032] The handle is arranged on the third displacement carrier plate.

[0033] The head comprises a pointed tip with a narrowed end, which is directed towards the positioning workbench and extends beyond the third displacement carrier plate.

[0034] Further, the pointed tip is provided with a sharp protrusion, which is shaped to fit a Lens.

[0035] Specifically, the sharp protrusion is used for disassembling a Lens and provides a variable pushing force for the pusher knife through X-axis displacement.

[0036] Optionally, the outer edge of the base is provided with a positioning mounting hole, which is used for fixing the base to an external disassembly platform.

[0037] In summary, the adjustable device for disassembling a Lens in a PCBA has at least the following advantages:

[0038] 1. The pusher knife with displacement function is used to disassemble a Lens on a PCBA board of a clamping mechanism, the X-axis degree of freedom of the pusher knife is used to control the disassembly force of the pusher knife, and the controllability and reliability of Lens disassembly are improved.

[0039] 2. The structure of the clamping mechanism is designed to limit the three-coordinate degree of freedom of the PCBA, so as to ensure that it is completely limited in the mounting groove, and the pusher knife is easy to operate on the Lens on the PCBA fixed by the clamping mechanism, and the reliability of Lens disassembly is improved.

[0040] 3. The utility model discloses a first adjusting groove and second adjusting groove design, make the position of cushion block and fixed chuck adjustable, so that the adjustable device provided by the utility model can be compatible with different size PCBA, to improve the multiplicity of the utility model, reduce the fixture design and manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0041] The utility model will be described in further detail below in combination with the drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and therefore should not be regarded as limiting the scope of the utility model. In addition, unless specifically indicated, the drawings only schematically show the composition or structure of the described object conceptually and can contain exaggerated display, and the drawings are not necessarily drawn to scale.

[0042] Fig. 1 The structure schematic diagram of an adjustable device for the disassembly of Lens in PCBA provided by an embodiment of the utility model;

[0043] Fig. 2 The explosion schematic diagram of an adjustable device for the disassembly of Lens in PCBA provided by another embodiment of the utility model;

[0044] Fig. 3 The structure schematic diagram of PCBA provided by an embodiment of the utility model;

[0045] 1, base;2, positioning workbench;3, operation workbench;4, PCBA;11, positioning mounting hole;21, clamping mechanism;22, first displacement mechanism;31, push knife;32, second displacement mechanism;33, third displacement mechanism;41, Lens;42, recess;111, fixed bolt;211, mounting block;212, clamping mechanism;221, first fixed seat;222, first drive mechanism;223, first displacement carrier plate;311, knife handle;312, knife head;313, bolt connection;321, second fixed seat;322, second drive mechanism;323, second displacement carrier plate;331, third fixed seat;332, third drive mechanism;333, third displacement carrier plate;211a, mounting groove;211b, cushion block;212a, fixed chuck;212b, pressing block;212c, screw bolt;212d, spring;212e, rotating shaft;312a, knife tip;332a, rotating handle;332b, slide rail;332c, guide groove. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings Figs. 1 to 3 The utility model is described in detail.

[0047] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0048] It is worth mentioning that the utility model uses ordinal numbers such as "first", "second" to distinguish multiple objects, and is not used to limit the order, time sequence, priority or importance of multiple objects. Exemplarily, the first displacement mechanism 22 and the second displacement mechanism 32 are only for the convenience of description, and are not used to represent the difference in order, importance, etc. of the first displacement mechanism 22 and the second displacement mechanism 32. In addition, the term "connection" should be understood broadly, for example, the "connection" can be fixed connection, can also be detachable connection, can also be abutting connection or integral connection; wherein, the "connection" can also be direct connection or indirect connection. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0049] The main idea of the utility model is to provide a compatible adjustable device for disassembling the Lens 41 in different positions of different PCBA 4, so as to control the force of disassembling the Lens 41, and the operation is simple and the reusability is strong. The technical idea of the utility model will be explained and described below through the drawings.

[0050] Further, please refer to Fig. 1 The utility model provides a kind of adjustable device for disassembling Lens 41 in PCBA 4 for an embodiment of the utility model.

[0051] Specifically, to facilitate the explanation of the direction in the drawings, the utility model gives the direction of X, Y, Z three-axis in the lower left corner Fig. 1 Of the utility model. The adjustable device provided by the utility model includes base 1, and positioning workbench 2 and operation workbench 3 respectively arranged on both sides of base 1, and positioning workbench 2 and operation workbench 3 are oppositely arranged in X-axis direction. Wherein, the clamping mechanism 21 on positioning workbench 2 is used to clamp PCBA 4 (the shape of PCBA please refer to Fig. 3 Indicated, Fig. 3The utility model provides a structure schematic drawing of PCBA of an embodiment provides positioning and fixed, the pusher 31 of operation workstation 3 is used for dismantling the Lens 41 on PCBA 4. The first displacement mechanism 22 of positioning workstation 2 can drive the clamping mechanism 21 to displace in Z axle direction, the second displacement mechanism 32 of operation workstation 3 can drive the third displacement mechanism 33 to displace in Y axle direction, and the third displacement mechanism 33 can drive the pusher 31 to displace in X axle direction. Therefore, the utility model most core working principle lies in: first PCBA 4 is installed and fixed in clamping mechanism 21, then through the first displacement mechanism 22 and the second displacement mechanism 32, the position of pusher 31 relative to PCBA 4 on clamping mechanism 21 is adjusted in Y axle direction and Z axle direction, to make the cutter tip 312a of pusher 31 just for Lens 41 on PCBA 4, after pusher 31 completes the positioning of Lens 41, through the drive third displacement mechanism 33, makes pusher 31 displace in X axle direction, to make pusher 31 exert dismantling force to Lens 41, until pusher 31 dismantles Lens 41 from PCBA 4. Benefited from the adjustment function of the first displacement mechanism 22 and the second displacement mechanism 32, pusher 31 can be positioned in any position of Lens 41 on PCBA 4, further to make the utility model can complete the simultaneous dismantling of multiple Lens 41 on PCBA 4 through the loading of PCBA 4 once.

[0052] It is worth explaining that, Fig. 3 The provided PCBA 4 includes the structure schematic of the plate body of PCBA 4, and the Lens 41 and the groove 42 outside the plate body, and the structure details of other components are hidden.

[0053] In order to further explain the utility model, please see Fig. 2 As shown in the utility model another embodiment provides an adjustable device for the explosion schematic diagram of Lens dismantling in PCBA.

[0054] Specifically, the first displacement mechanism 22 includes the first fixed seat 221, the first drive mechanism 222 arranged on the first fixed seat 221, and the first displacement carrier plate 223 connected to the drive part of the first drive mechanism 222; in the Z axle direction, the first displacement carrier plate 223 is slidingly connected to the first fixed seat 221. Among them, the first fixed seat 221 is connected and fixed to the base 1 by the mode of bolt connection 313, and the first drive mechanism 222 is used to drive the first displacement carrier plate 223 to reciprocate in the Y axle direction, so that the clamping mechanism 21 installed on the first displacement carrier plate 223 reciprocates in the Y axle direction.

[0055] Further, the clamping mechanism 21 comprises a mounting block 211 and a clamping mechanism 212 arranged on the mounting block 211; one end of the mounting block 211 is connected to the first displacement carrier plate 223, and the other end is a working surface, which comprises a mounting groove 211b for placing the PCBA 4 to limit its freedom in the X-axis direction; along the X-axis direction, the working surface comprises a pad 211c, which is shaped to match the groove 42 on the PCBA 4 to limit its freedom in the Y-axis direction; the clamping mechanism 212 is arranged on both sides of the mounting groove 211b, one side is a fixed clamp 212a, and the other side is a movable clamp with rotational freedom to limit the freedom of the PCBA 4 in the Z-axis direction in the working state. In addition, the clamping mechanism 212 is arranged on both sides of the mounting groove 211b, one side is a fixed clamp 212a, and the other side is a movable clamp with rotational freedom to limit the freedom of the PCBA 4 in the Z-axis direction in the working state. The movable clamp comprises a pressing block 212b, a screwing bolt 212c and a spring 212d; the pressing block 212b is corner-shaped, the bottom of one corner part is provided with a rotating shaft 212e hole, the middle part is provided with a movable through hole, the rotating shaft 212e hole is connected to the mounting block 211 through the rotating shaft 212e, and the movable through hole is used for penetrating the screwing bolt 212c; the other corner part is shaped to match the surface of the PCBA 4; the spring 212d is sleeved on the screwing bolt 212c and penetrates the movable through hole and abuts against the mounting block 211.

[0056] In combination Fig. 2 and Fig. 3 , the working principle of the clamping mechanism 21 is as follows: according to the shape of the PCBA 4, the PCBA 4 is placed in the mounting groove 211b, and the pad 211c is clamped into the groove 42 on the side of the PCBA 4, thereby limiting the freedom of the PCBA 4 in the X-axis and Y-axis directions. Then, the screwing bolt 212c is rotated, and due to the limitation of the rotating shaft 212e on one corner of the pressing block 212b, the other corner of the pressing block 212b is moved towards the surface of the PCBA 4 under the action of the spring 212d, thereby pressing on the surface of the PCBA 4 and limiting the freedom of the PCBA 4 in the Z-axis direction. Through the above clamping method, the operation is simple and the clamping fastness is reliable.

[0057] Further, the working surface is provided with a first adjusting groove and a second adjusting groove (the first adjusting groove and the second adjusting groove are not shown in the figure, but can be understood by referring to the spatial orientation of the X, Y and Z three axes). The first adjusting groove is opened along the direction of the Y axis and is used for mounting the pad 211c; the second adjusting groove is opened along the direction of the X axis and is used for mounting the fixed chuck 212a. It is worth explaining that the first adjusting groove and the second adjusting groove can adjust the positions of the pad 211c and the fixed chuck 212a, so that the PCBA 4 of different sizes and specifications can be adapted, and the lens 41 of the PCBA 4 of various sizes and specifications can be disassembled, thereby improving the compatibility of the utility model.

[0058] Optionally, the second displacement mechanism 32 comprises a second fixed seat 321, a second driving mechanism 322 arranged on the second fixed seat 321 and a second displacement carrier plate 323 connected to the driving part of the second driving mechanism 322; in the Y axis direction, the second displacement carrier plate 323 is slidingly connected to the second fixed seat 321. Similarly, the third displacement mechanism 33 comprises a third fixed seat 331, a third driving mechanism 332 arranged on the third fixed seat 331 and a third displacement carrier plate 333 connected to the driving part of the third driving mechanism 332; the third fixed seat 331 is arranged on the second displacement carrier plate 323; in the X axis direction, the third displacement carrier plate 333 is slidingly connected to the third fixed seat 331. The push knife 31 comprises an integrally formed knife handle 311 and a knife head 312; the knife handle 311 is arranged on the third displacement carrier plate 333; the knife head 312 comprises a knife tip 312a which is narrowed inwardly at the end, the knife tip 312a faces the positioning workbench 2 and extends out of the third displacement carrier plate 333. Thus, the second fixed seat 321 is fixed to the base 1 by means of the bolt connection 313, the second displacement carrier plate 323 can reciprocate in the Y axis direction relative to the second fixed seat 321 under the driving of the second driving mechanism 322, so as to drive the third fixed seat 331 on the second displacement carrier plate 323 to reciprocate in the Y axis direction. The push knife 31 is arranged on the third displacement carrier plate 333, so that the push knife 31 can reciprocate in the X axis direction under the driving of the third driving mechanism 332.

[0059] Further, in order to explain the working principle of the first displacement mechanism 22, the second displacement mechanism 32 and the third displacement mechanism 33 of the utility model, the utility model is used for disassembling the lens 41 of the PCBA 4. Fig. 2The third displacement mechanism 33 is disassembled. The third displacement mechanism 33 comprises a rotating handle 332a, a sliding rail 332b and a guide groove 332c, and the third displacement carrier plate 333 is provided with a sliding block (not shown in the figure), the sliding block is slidingly engaged with the sliding rail 332b, and the sliding block is driven by the rotating handle 332a, so that when the rotating handle 332a is operated by the operator, the third displacement carrier plate 333 reciprocates along the direction of the sliding rail 332b under the action of the sliding block, and the direction of the sliding rail 332b is the X-axis direction. In addition, the guide groove 332c is used for guiding the third displacement carrier plate 333 when sliding in the X-axis direction.

[0060] Further, the knife tip 312a is provided with a sharp protrusion, and the shape of the sharp protrusion is adapted to the Lens 41.

[0061] Optionally, the outer edge of the base 1 is provided with a positioning mounting hole 11, and the positioning mounting hole 11 is used for fixing the base 1 to a disassembly platform in the outside world.

[0062] Optionally, the connection of the components of the utility model is achieved by the fixing bolts 111 and the threaded holes formed on the components.

[0063] The utility model is introduced in detail above, the principle and implementation mode of the utility model are described by applying specific examples in the utility model, and the above embodiment is only used for helping understanding the utility model and core idea. It should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. An adjustable device for Lens removal in PCBA, characterized in that, The utility model relates to a kind of PCBA (Printed Circuit Board Assembly) automatic positioning and operation device, including: Base (1), and positioning workbench (2) and operation workbench (3) separately arranged in the two sides of the base (1); The positioning workbench (2) includes clamping mechanism (21), to position the PCBA (4) in working condition; The operation workbench (3) includes push sword (31); The positioning workbench (2) and the operation workbench (3) are respectively provided with first displacement mechanism (22) and second displacement mechanism (32), for driving the push sword (31) relative motion in Y axis direction and Z axis direction relative to the clamping mechanism (21) respectively; The operation workbench (3) is provided with third displacement mechanism (33), to drive the push sword (31) relative motion in X axis direction relative to the clamping mechanism (21).

2. An adjustable device for dismounting a Lens in a PCBA as claimed in claim 1, characterized in that, The first displacement mechanism (22) includes first fixed seat (221), first drive mechanism (222) arranged in the first fixed seat (221), and first displacement carrier plate (223) connected to the drive part of the first drive mechanism (222); In Z axis direction, the first displacement carrier plate (223) is slidably connected to the first fixed seat (221).

3. An adjustable device for dismounting a Lens in a PCBA as claimed in claim 2, characterized in that, The clamping mechanism (21) includes mounting block (211) and clamping mechanism (212) arranged in the mounting block (211); One end surface of the mounting block (211) is connected to the first displacement carrier plate (223);The other end surface is working surface, including mounting groove (211b), and the mounting groove (211b) is used to place the PCBA (4), to limit its degree of freedom in X axis direction; Along X axis direction, the working surface includes pad (211c), and the shape of the pad (211c) is adapted to the groove (42) on the PCBA (4), to limit the PCBA in Y axis direction degree of freedom; The clamping mechanism (212) is arranged on both sides of the mounting groove (211b), one side is fixed chuck (212a), and the other side is movable chuck, and the movable chuck has rotational freedom, to limit the degree of freedom of the PCBA (4) in Z axis direction in working condition.

4. An adjustable device for dismounting a Lens in a PCBA as claimed in claim 3, wherein, The movable chuck includes pressing block (212b), screw bolt (212c) and spring (212d); The pressing block (212b) is corner-shaped, and the bottom of one corner part is provided with pivot hole, and the middle part is provided with movable through hole, the pivot hole is connected to the mounting block (211) through the pivot (212e), and the movable through hole is used to pass through the screw bolt (212c);The shape of the other corner part is adapted to the plate surface of the PCBA (4); The spring (212d) is sleeved on the screw bolt (212c), and passes through the movable through hole, and abuts against the mounting block (211).

5. An adjustable device for dismounting a Lens in a PCBA as claimed in claim 3, wherein, The working surface is provided with first adjusting groove and second adjusting groove; The first adjusting groove is opened along Y axis direction, and the pad (211c) is installed in the first adjusting groove. The second adjusting groove is opened along the direction of the X axis, and the fixed chuck (212a) is mounted.

6. An adjustable device for dismounting a Lens in a PCBA as claimed in claim 2, wherein, The second displacement mechanism (32) comprises a second fixed seat (321), a second driving mechanism (322) arranged on the second fixed seat (321), and a second displacement carrier plate (323) connected to the driving part of the second driving mechanism (322). In the Y axis direction, the second displacement carrier plate (323) is slidingly connected to the second fixed seat (321).

7. An adjustable device for dismounting a Lens in a PCBA as claimed in claim 6, characterized in that, The third displacement mechanism (33) comprises a third fixed seat (331), a third driving mechanism (332) arranged on the third fixed seat (331), and a third displacement carrier plate (333) connected to the driving part of the third driving mechanism (332). The third fixed seat (331) is arranged on the second displacement carrier plate (323). In the X axis direction, the third displacement carrier plate (333) is slidingly connected to the third fixed seat (331).

8. An adjustable device for dismounting a Lens in a PCBA as claimed in claim 7, characterized in that, The push knife (31) comprises an integrally formed knife handle (311) and a knife head (312). The knife handle (311) is arranged on the third displacement carrier plate (333). The knife head (312) comprises a knife tip (312a) which is narrowed inwardly at the end, the knife tip (312a) faces the positioning workbench (2) and extends out of the third displacement carrier plate (333).

9. An adjustable device for dismounting a Lens in a PCBA as claimed in claim 8, characterized in that, The knife tip (312a) is provided with a sharp protrusion, and the shape of the sharp protrusion is adapted to the Lens (41).

10. An adjustable device for dismounting a Lens in a PCBA as claimed in claim 1, wherein, The outer edge of the base (1) is provided with a positioning mounting hole (11).

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