Positioning mechanism, marking equipment and production system

Abstract

The utility model discloses a positioning mechanism. The positioning mechanism comprises a bearing seat, a fixing plate, a mounting plate and a pressing assembly. The fixing plate and the mounting plate are arranged on the bearing seat at intervals in the first direction; the pressing assembly comprises a pressing module and an elastic piece, the pressing module is connected to the mounting plate in a reciprocating motion mode in the first direction, the pressing end of the pressing module is located in the bearing space, and the elastic piece is arranged between the pressing module and the mounting plate so as to provide acting force enabling the pressing module to move close to the fixing plate. The pressing module is made to be in the first state, the pressing end is located at the first position and far away from the fixing plate, then the multiple wafers are placed in the bearing space in a stacked mode, then the pressing module is switched to the second state, and at the moment, the pressing end can face the second position from the first position under the action of the elastic piece till the pressing end abuts against the multiple wafers. The positioning of a plurality of wafers is realized, and then the wafers can be marked through the marking machine in sequence, so that the marking efficiency is higher. The utility model further discloses marking equipment and a production system.

Description

Technical Field

[0001] The present application belongs to the technical field of product marking, and specifically relates to a positioning mechanism, marking equipment and a production system. Background Art

[0002] After dicing, wafer products usually need to be marked with various logos on the side using a marking machine, which is usually a laser engraving machine. At present, when marking a large number of products, a fixture is usually used to hold the products, and the materials are manually taken in and out. Specifically, after placing a product, press the marking machine, and after marking is completed, take the product out. This operation is repeated, and the marking efficiency is low. Utility Model Content

[0003] The technical problem to be solved by the present application is that the existing manual marking method is inefficient, and a positioning mechanism, marking equipment and production system with high marking efficiency are provided.

[0004] The technical solution proposed in this application is:

[0005] A positioning mechanism comprising

[0006] Bearing seat;

[0007] A fixing plate and a mounting plate are arranged on the bearing seat at intervals along a first direction, and the fixing plate, the mounting plate and the bearing seat enclose a bearing space;

[0008] A clamping assembly, comprising a clamping module and an elastic member, wherein the clamping module is connected to the mounting plate so as to be reciprocatingly movable along the first direction, and a clamping end of the clamping module is located in the bearing space, and the elastic member is disposed between the clamping module and the mounting plate to provide a force for moving the clamping module closer to the fixing plate;

[0009] Wherein, the clamping module includes a first state and a second state, and when the clamping module is in the first state, the clamping end moves to a first position toward the fixed plate under the action of the elastic member; when the clamping module is in the second state, the clamping end moves to a second position toward the fixed plate under the action of the elastic member, and the second position is closer to the fixed plate than the first position.

[0010] Further, the clamping module includes a clamping member and a limiting member, the clamping member is connected to the mounting plate so as to be reciprocatingly movable along the first direction, the elastic member is connected between the clamping member and the mounting plate, the limiting member is connected to the clamping member, a limiting protrusion is provided on a side of the mounting plate away from the fixing plate, and the clamping member can also rotate around an axis parallel to the first direction;

[0011] The clamping member can pass through a release position and a clamping position during rotation. When the clamping member rotates to the release position, the limit member corresponds to the limit protrusion in the first direction; when the clamping member rotates to the clamping position, the limit member is staggered with the limit protrusion in the first direction.

[0012] Further, the clamping module includes a clamping member and a limiting member, the clamping member is connected to the mounting plate so as to be reciprocatingly movable along the first direction, the elastic member is connected between the clamping member and the mounting plate, the limiting member is connected to the clamping member, a docking hole is provided on a side of the mounting plate away from the fixing plate, and the clamping member can also rotate around an axis parallel to the first direction;

[0013] The pressing member can pass through a release position and a pressing position during rotation. When the pressing member rotates to the release position, the limit member is staggered with the docking hole in the first direction; when the pressing member rotates to the clamping position, the limit member corresponds to the docking hole in the first direction.

[0014] Further, the mounting plate is rotatably connected to the bearing seat around an axis parallel to the first direction, and the mounting plate can pass through a corresponding position during the rotation process;

[0015] When the mounting plate is rotated to the corresponding position, the mounting plate, the fixing plate and the bearing seat are combined to form the bearing space.

[0016] Furthermore, the bearing seat is provided with a placement groove, the placement groove extends along the first direction and is located in the bearing space, and the clamping end corresponds to the placement groove.

[0017] Furthermore, the positioning mechanism includes at least two groups of clamping components, the supporting seat is provided with at least two placement grooves, at least two placement grooves are arranged at intervals along a second direction that is angled with the first direction, and at least two placement grooves correspond one-to-one to at least two groups of clamping components.

[0018] Furthermore, the positioning mechanism also includes a base, and the bearing seat is connected to the base so as to be reciprocally movable along the first direction.

[0019] Furthermore, the positioning mechanism also includes a driving member, and the driving member is arranged on the base and connected to the supporting seat.

[0020] A marking device comprises a marking machine and the positioning mechanism as described above.

[0021] A production system comprises the positioning mechanism or marking device as described above.

[0022] The above positioning mechanism is used to first put the clamping module in the first state, with the clamping end at the first position and away from the fixed plate, and then multiple wafers are stacked and placed in the bearing space. Next, the clamping module is switched to the clamping position. At this time, the clamping end can move from the first position to the second position under the action of the elastic member until the clamping end presses against the multiple wafers, and the multiple wafers are pressed against the fixed plate to achieve the positioning of the multiple wafers. After the positioning of the multiple wafers is completed, they can be marked in sequence by the marking machine, and the marking efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present application and constitute a part of the specification. They are used to explain the present application together with the embodiments of the present application and do not constitute a limitation of the present application.

[0024] Figure 1 A schematic diagram of the structure of a positioning mechanism provided in one embodiment of the present application;

[0025] Figure 2 for Figure 1 A structural schematic diagram of the positioning mechanism from another angle shown;

[0026] Figure 3 for Figure 1 A structural schematic diagram of the positioning mechanism shown in another angle;

[0027] Figure 4 for Figure 3 An enlarged structural diagram of the circle in the positioning mechanism shown.

[0028] Description of labels:

[0029] 100, positioning mechanism; 200, wafer; 110, bearing seat; 120, fixing plate; 130, mounting plate; 140, clamping assembly; 141, clamping module; 142, elastic member; 143, clamping end; 150, base; 160, driving member; 111, placement groove; 144, clamping member; 145, limiting member; 146, limiting portion; 131, limiting protrusion; 147, pressing block; 132, mounting hole; 133, through hole; 134, connecting shaft. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only 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 creative work are within the scope of protection of this application.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In order to facilitate understanding of the technical solution of the present invention, the existing wafer marking method is explained: as mentioned above, the wafer is placed in a jig for marking, but because the jig cannot position multiple wafers at the same time, when the jig is used to place the wafers, one wafer is placed at a time, removed after marking is completed, and then the operation is repeated, resulting in low marking efficiency.

[0033] On the one hand, the present application provides a marking device that can mark a product. Specifically, the marking device is used to mark a wafer. Of course, in other embodiments, the marking device can also be applied to the marking of other products, which is not limited here. The following description takes a wafer as an example.

[0034] Furthermore, the marking device includes a positioning mechanism 100 (see Figure 1 ) and a marking machine, the positioning mechanism 100 can position a plurality of wafers 200 (see Figure 1 ) for positioning, and the marking machine is used to mark the multiple wafers 200 on the positioning mechanism 100 to improve the marking efficiency.

[0035] like Figure 1 and Figure 2 As shown, in one embodiment, the positioning mechanism 100 includes a bearing seat 110, a fixing plate 120, a mounting plate 130 and a clamping assembly 140. The fixing plate 120 and the mounting plate 130 are arranged on the bearing seat 110 at intervals along the first direction, and the fixing plate 120, the mounting plate 130 and the bearing seat 110 enclose a bearing space for bearing multiple wafers 200. The clamping assembly 140 is arranged on the mounting plate 130, and the clamping assembly 140 can clamp and position the multiple wafers 200 in the bearing space. It should be noted that the multiple wafers 200 that are clamped and positioned are stacked along the first direction.

[0036] Furthermore, the clamping assembly 140 includes a clamping module 141 and an elastic member 142. The clamping module 141 is connected to the mounting plate 130 and can move back and forth along the first direction. The clamping end 143 of the clamping module 141 is located in the carrying space and is used to clamp the multiple wafers 200 in the carrying space onto the fixed plate 120. The elastic member 142 is arranged between the clamping module 141 and the mounting plate 130 to provide a force to move the clamping module 141 close to the fixed plate 120, that is, to provide a force for the clamping end 143 to clamp the multiple wafers 200.

[0037] The clamping module 141 includes a first state and a second state. When the clamping module 141 is in the first state, the clamping end 143 moves to the first position toward the fixed plate 120 under the action of the elastic member 142; when the clamping module 141 is in the clamping position, the clamping end 143 moves to the second position toward the fixed plate 120 under the action of the elastic member 142. The second position is closer to the fixed plate 120 than the first position. In other words, the clamping end 143 at the first position is far away from the fixed plate 120, and the clamping end 143 at the second position is close to the fixed plate 120.

[0038] It is understandable that when the clamping module 141 is in the first state, the clamping end 143 is away from the fixed plate 120. After the clamping module 141 is switched to the second state, the clamping module 141 can continue to move toward the fixed plate 120 under the action of the elastic member 142 until the clamping end 143 moves to the second position.

[0039] In addition, when it is necessary to move the clamping end 143 from the second position to the first position, an external force may be applied first to move the clamping module 141 away from the fixing plate 120, and then the clamping module 141 is switched to the first state, and the external force is gradually removed, so that the clamping module 141 moves toward the fixing plate 120 under the action of the elastic member 142 until the clamping end 143 moves to the first position. Similarly, it can be determined that after marking is completed, the clamping end 143 can be moved to the first position in this manner to release the multiple wafers 200 that have been marked.

[0040] By using the above positioning mechanism, the clamping module 141 is first placed in the first state, the clamping end 143 is located at the first position and away from the fixed plate 120, and then multiple wafers 200 are stacked and placed in the bearing space, and then the clamping module 141 is switched to the second state, at which time the clamping end 143 can move from the first position to the second position under the action of the elastic member 142 until the clamping end 143 presses against the multiple wafers 200, and the multiple wafers 200 are pressed against the fixed plate 120, thereby achieving the positioning of the multiple wafers 200. After the positioning of the multiple wafers 200 is completed, they can be marked in sequence by a marking machine, and the marking efficiency is higher.

[0041] In addition, when placing a plurality of wafers 200, the pressing module 141 may be placed in the first state first, and then the plurality of wafers 200 may be directly stacked and arranged in the carrying space, which is more convenient to operate and further improves the marking efficiency.

[0042] In one embodiment, the positioning mechanism also includes a base 150, and the support seat 110 is connected to the base 150 so as to be reciprocable along a first direction. The support seat 110 can pass through the marking area of ​​the marking machine during the reciprocating movement along the first direction, thereby realizing marking of multiple wafers 200 on the support seat 110.

[0043] Furthermore, the positioning mechanism further includes a driving member 160, which is disposed on the base 150 and connected to the support base 110 to drive the support base 110 to reciprocate along the first direction to achieve automatic marking of multiple wafers 200 on the support base 110 in sequence. In a preferred embodiment, the driving member 160 includes a servo motor and a lead screw module.

[0044] In one embodiment, the bearing seat 110 is provided with a placement groove 111 for placing the wafer 200, the placement groove 111 extends along the first direction and is located in the bearing space, and the clamping end 143 of the clamping assembly 140 corresponds to the placement groove 111. In this way, after a plurality of wafers 200 are placed in the placement groove 111, the wafers 200 are prevented from rolling down, and then the plurality of wafers 200 are conveniently clamped on the fixing plate 120 through the corresponding clamping end 143. Specifically, the placement groove 111 is a V-shaped groove or an arc-shaped groove.

[0045] Please also see Figure 3 and Figure 4 In the first embodiment, the clamping module 141 includes a clamping member 144 and a limiting member 145. The clamping member 144 is connected to the mounting plate 130 so as to be reciprocatingly movable along a first direction. The elastic member 142 is connected between the clamping member 144 and the mounting plate 130. The limiting member 145 is connected to the clamping member 144. The clamping member 144 can also rotate around an axis parallel to the first direction, and the clamping member 144 can pass through a release position and a clamping position during rotation.

[0046] Furthermore, a limiting protrusion 131 is provided on one side of the mounting plate 130 away from the fixing plate 120. When the pressing member 144 rotates to the release position, the limiting member 145 corresponds to the limiting protrusion 131 in the first direction, so that during the movement of the pressing member 144 toward the fixing plate 120, the limiting member 145 can abut against the limiting protrusion 131, thereby limiting the pressing end 143 to the first position, and the pressing module 141 is in the first state; when the pressing member 144 rotates to the pressing position, the limiting member 145 is staggered from the limiting protrusion 131 in the first direction, so that the pressing end 143 of the pressing member 144 can continue to move to the second position, and the pressing module 141 is in the second state.

[0047] In practical applications, the limiting protrusion 131 includes two limiting blocks, which are arranged at intervals on the side of the mounting plate 130 away from the fixed plate 120, and the pressing member 144 is inserted between the two limiting blocks. The limiting member 145 is rod-shaped and extends in a direction perpendicular to the first direction. When the pressing member 144 rotates to the release position, the limiting member 145 corresponds to the two limiting blocks in the first direction, so that when the pressing member 144 moves toward the fixed plate 120, the two ends of the limiting member 145 abut against the two limiting blocks; when the pressing member 144 rotates to the clamping position, the limiting member 145 is staggered from the two limiting blocks in the first direction, so that the limiting member 145 can enter between the two limiting blocks, and then the clamping end 143 can be further close to the fixed plate 120.

[0048] It should be noted that, when the limiting member 145 is staggered from the limiting protrusion 131, during the process of the pressing member 144 moving toward the fixing plate 120, the limiting member 145 may abut against the side of the mounting plate 130 away from the fixing plate 120, or the end of the pressing member 144 away from the fixing plate 120 may abut against the limiting protrusion 131. When the end of the pressing member 144 away from the fixing plate 120 abuts against the limiting protrusion 131, a limiting portion 146 is provided at the end of the pressing member 144 away from the fixing plate 120, and the size of the limiting portion 146 is larger than the size of other positions of the pressing member 144, so that the pressing member 144 can reciprocate along the first direction, and the limiting portion 146 can abut against the two limiting blocks.

[0049] It is also understandable that Figure 4 In the illustrated embodiment, the pressing member 144 is in the pressing position, and the limiting member 145 is able to enter between the two limiting blocks.

[0050] In the second embodiment, a docking hole is opened on the side of the mounting plate 130 away from the fixing plate 120, the structure of the clamping module 141 is the same as that in the first embodiment, the clamping member 144 is also rotatable around an axis parallel to the first direction, and can pass through a release position and a clamping position during the rotation process.

[0051] When the clamping member 144 rotates to the release position, the limiting member 145 is staggered with the docking hole in the first direction, so that when the clamping member 144 moves close to the fixed plate 120, the limiting member 145 can abut against the side of the mounting plate 130 away from the fixed plate 120, thereby limiting the clamping end 143 to the first position, and the clamping module 141 is in the first state at this time; when the clamping member 144 rotates to the clamping position, the limiting member 145 corresponds to the docking hole in the first direction, so that when the clamping member 144 moves close to the fixed plate 120, the limiting member 145 can enter the docking hole, thereby making the clamping member 144 further close to the fixed plate 120, that is, the clamping end 143 moves to the second position, and the clamping module 141 is in the second state.

[0052] In the third embodiment, a limiting protrusion 131 is provided on the side of the mounting plate 130 away from the fixed plate 120, and a limiting member 145 is detachably connected to the pressing member 144. When the limiting member 145 is connected to the pressing member 144, the limiting member 145 corresponds to the limiting protrusion 131 in the first direction, so that during the movement of the pressing member 144 toward the fixed plate 120, the limiting member 145 can abut against the limiting protrusion 131, thereby limiting the pressing end 143 to the first position, and the pressing module 141 is in the first state; when the limiting member 145 is detached from the pressing member 144, the pressing end 143 of the pressing member 144 can move to the second position, and the pressing module 141 is in the second state. At this time, the end of the pressing member 144 away from the fixed plate 120 can abut against the limiting protrusion 131, such as the limiting portion 146 is provided at the end of the pressing member 144 away from the fixed plate 120 in the first embodiment. Optionally, the limiting member 145 is a latch.

[0053] It is understandable that the third embodiment can be combined with the first embodiment, that is, the pressing member 144 can rotate, and the limiting member 145 can also be detachably connected to the pressing member 144, which is not limited here.

[0054] It should be noted that the limiting protrusion 131 and the docking hole are used to cooperate with the limiting member 145 to achieve that the pressing member 144 is kept in the first position and the second position under the action of the elastic member 142. In other embodiments, other settings may also be adopted, which are not limited here. In addition, the limiting protrusion 131 is used as an example for explanation below.

[0055] In one embodiment, the clamping module 141 further includes a clamping block 147, which is connected to one end of the mounting plate 130 close to the fixing plate 120, and the clamping block 147 constitutes the clamping end 143 in the above embodiment. Furthermore, one end of the elastic member 142 abuts against the side of the mounting plate 130 facing the fixing plate 120, and the other end abuts against the clamping block 147, thereby providing a force that causes the clamping end 143 to move close to the fixing plate 120. Figure 1 In the illustrated embodiment, the pressing block 147 is made of a flexible material, the elastic member 142 is a spring, the pressing member 144 is in a rod shape, and the elastic member 142 is sleeved on the outside of the pressing member 144 .

[0056] Furthermore, a mounting hole 132 and a through hole 133 are formed on one side of the mounting plate 130 facing the fixing plate 120. The mounting hole 132 and the through hole 133 are coaxially arranged, and the diameter of the mounting hole 132 is larger than that of the through hole 133. The through hole 133 penetrates the mounting plate 130 along the first direction. The pressing member 144 is penetrated through the through hole 133. One end of the elastic member 142 extends into the mounting hole 132 and abuts against the bottom wall of the mounting hole 132, and the other end abuts against the pressing block 147.

[0057] In one embodiment, the positioning mechanism includes at least two groups of positioning components, the bearing seat 110 is provided with at least two placement grooves 111, the at least two placement grooves 111 are arranged at intervals in the second direction, and the at least two placement grooves 111 correspond to at least two groups of clamping components 140 one by one, so as to further improve the marking efficiency. Figure 1 In the embodiment shown, the support seat 110 is provided with two placement grooves 111, and the positioning mechanism includes two sets of positioning components, and the two sets of positioning components share a limit block. The second direction is at an angle to the first direction. Figure 1 In the illustrated embodiment, the first direction is perpendicular to the second direction.

[0058] In one embodiment, the mounting plate 130 can also be rotatably connected to the bearing seat 110 around an axis parallel to the first direction. The mounting plate 130 can pass through and remain at a corresponding position during rotation, and the mounting plate 130 located at the corresponding position can correspond to the fixing plate 120, and enclose the fixing plate 120 and the bearing seat 110 to form the above-mentioned bearing space. When loading and unloading is required, the mounting plate 130 is rotated away from the corresponding position, and after loading and unloading is completed, the mounting plate 130 is rotated back to the corresponding position.

[0059] Furthermore, the mounting plate 130 is rotatably connected to the bearing seat 110 via a connecting shaft 134. The bearing seat 110 is also provided with a first clamping portion, and the mounting seat is provided with a second clamping portion. When the mounting plate 130 is rotated to the above corresponding position, the first clamping portion can be clamped with the second clamping portion, so that the mounting plate 130 is kept in this position.

[0060] exist Figure 3In the illustrated embodiment, the first clamping portion is a clamping column, and the second clamping portion is a clamping groove. Moreover, at this time, the mounting plate 130 is rotated to a corresponding position, and the first clamping portion and the second clamping portion are clamped with each other. If it is necessary to turn away from the mounting plate 130, an external force can be applied to the other end of the mounting plate 130 away from the connecting shaft 134 to lift the other end of the mounting plate 130, and the first clamping portion will be separated from the second clamping portion during the lifting process.

[0061] In order to facilitate understanding of the technical solution of this application, Figure 1 The marking process of the marking device in the above embodiment is described as follows:

[0062] First, an external force is applied to the pressing member 144 to move the pressing member 144 away from the fixed plate 120, and then the pressing member 144 is rotated to the release position. Next, the external force is removed, and the pressing member 144 moves toward the fixed plate 120 under the action of the elastic member 142 until the limiting member 145 abuts against the limiting protrusion 131, and the pressing end 143 is at the first position. Next, the mounting plate 130 is rotated away from the corresponding position, and then a plurality of wafers 200 are placed on the placement groove 111 in the bearing space. Then, the mounting plate 130 is rotated back to the corresponding position, and the pressing member 144 is rotated to the pressing position, and the limiting member 145 is staggered from the limiting protrusion 131 (or the limiting member 145 can be detached). The pressing member 144 continues to move toward the fixed plate 120 until the pressing block 147 abuts against the wafer 200, and the plurality of wafers 200 are pressed against the fixed plate 120.

[0063] The driving member 160 drives the carrier 110 to move along the first direction to the marking area of ​​the marking machine, and in the marking area, each time the driving member 160 drives the carrier 110 to move a distance of the thickness of a wafer 200 (for example, the thickness of the wafer 200 is 3mm, and it moves 3mm each time), the marking machine performs a marking action until all the wafers 200 are marked, and the driving member 160 drives the carrier 110 to return to the initial position or the unloading position for unloading.

[0064] It should be noted that, in order to further facilitate placing multiple wafers 200 into the placement slots 111, or to facilitate taking multiple wafers 200 out of the placement slots 111, the mounting plate 130 can also be detachably connected to the support seat 110, and the mounting plate 130 can be detached when loading and unloading is required. Of course, the mounting plate 130 is connected to the support seat 110 through a quick release structure.

[0065] In addition, the number of wafers 200 can be determined according to their thickness and the distance between the pressing end 143 moved to the second position and the fixing plate 120, that is, to ensure that the pressing end 143 can press against the wafer 200 before moving to the second position.

[0066] On the other hand, the present application also provides a production system, including the positioning mechanism or marking device in the above embodiment.

[0067] In summary, the positioning mechanism, marking equipment and production system provided by the present application have at least the following advantages:

[0068] 1. It is possible to position multiple wafers 200, so as to facilitate marking of multiple wafers 200 in sequence, and there is no need to repeatedly load and unload materials during the marking process, which effectively improves the marking efficiency;

[0069] 2. During the loading and unloading process, the pressing member 144 can be rotated to the release position first, so that the limiting member 145 abuts against the limiting protrusion 131, and the pressing end 143 remains in the first position, which makes the operation more convenient;

[0070] 3. The mounting plate 130 can also be turned away during the loading and unloading process to further facilitate loading and unloading;

[0071] 4. Simple structure and low cost.

[0072] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A positioning mechanism, characterized in that: include Bearing seat; A fixing plate and a mounting plate are arranged on the bearing seat at intervals along a first direction, and the fixing plate, the mounting plate and the bearing seat enclose a bearing space; A clamping assembly, comprising a clamping module and an elastic member, wherein the clamping module is connected to the mounting plate so as to be reciprocatingly movable along the first direction, and a clamping end of the clamping module is located in the bearing space, and the elastic member is disposed between the clamping module and the mounting plate to provide a force for moving the clamping module closer to the fixing plate; Wherein, the clamping module includes a first state and a second state, and when the clamping module is in the first state, the clamping end moves to a first position toward the fixed plate under the action of the elastic member; when the clamping module is in the second state, the clamping end moves to a second position toward the fixed plate under the action of the elastic member, and the second position is closer to the fixed plate than the first position.

2. The positioning mechanism according to claim 1, characterized in that: The clamping module comprises a clamping member and a limiting member, wherein the clamping member is connected to the mounting plate so as to be reciprocatingly movable along the first direction, the elastic member is connected between the clamping member and the mounting plate, the limiting member is connected to the clamping member, a limiting protrusion is provided on a side of the mounting plate away from the fixing plate, and the clamping member can also rotate around an axis parallel to the first direction; The clamping member can pass through a release position and a clamping position during rotation. When the clamping member rotates to the release position, the limit member corresponds to the limit protrusion in the first direction; when the clamping member rotates to the clamping position, the limit member is staggered with the limit protrusion in the first direction.

3. The positioning mechanism according to claim 1, characterized in that: The clamping module comprises a clamping member and a limiting member, wherein the clamping member is connected to the mounting plate so as to be reciprocatingly movable along the first direction, the elastic member is connected between the clamping member and the mounting plate, the limiting member is connected to the clamping member, a docking hole is provided on a side of the mounting plate away from the fixing plate, and the clamping member can also rotate around an axis parallel to the first direction; The pressing member can pass through a release position and a pressing position during rotation. When the pressing member rotates to the release position, the limit member is staggered with the docking hole in the first direction; when the pressing member rotates to the clamping position, the limit member corresponds to the docking hole in the first direction.

4. The positioning mechanism according to claim 1, characterized in that: The mounting plate is rotatably connected to the bearing seat around an axis parallel to the first direction, and the mounting plate can pass through a corresponding position during rotation; When the mounting plate is rotated to the corresponding position, the mounting plate, the fixing plate and the bearing seat are combined to form the bearing space.

5. The positioning mechanism according to claim 1, characterized in that: The bearing seat is provided with a placement groove, the placement groove extends along the first direction and is located in the bearing space, and the pressing end corresponds to the placement groove.

6. The positioning mechanism according to claim 5, characterized in that: The positioning mechanism includes at least two groups of clamping components, the bearing seat is provided with at least two placement grooves, the at least two placement grooves are arranged at intervals along a second direction that is angled with the first direction, and the at least two placement grooves correspond one-to-one to the at least two groups of clamping components.

7. The positioning mechanism according to claim 1, characterized in that: The positioning mechanism further includes a base, and the bearing seat is connected to the base so as to be reciprocally movable along the first direction.

8. The positioning mechanism according to claim 7, characterized in that: The positioning mechanism further comprises a driving member, and the driving member is arranged on the base and connected to the supporting seat.

9. A marking device, characterized in that: It comprises a marking machine and the positioning mechanism described in any one of claims 1 to 8.

10. A production system, characterized in that: It comprises the positioning mechanism described in any one of claims 1 to 8 or the marking device described in claim 9.

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