Bilateral crimping device

Abstract

The invention provides a double-side crimping device which comprises a carrying table unit which is provided with a carrying surface used for placing a product to be tested, the carrying surface is divided into a plurality of mutually independent adsorption areas, and the plurality of adsorption areas are configured to adapt to the products to be tested of different specifications through different combinations; the crimping unit comprises a Y-axis driving mechanism and two groups of crimping execution mechanisms which are symmetrically arranged on the two opposite sides of the carrying table unit, and each group of crimping execution mechanism is in sliding connection with the Y-axis driving mechanism through an independent sliding block; each group of crimping execution mechanism comprises an X-axis driving assembly, a theta-axis rotating assembly, a Z-axis lifting assembly and a crimping assembly which are connected in sequence; the X-axis driving assembly, the theta-axis rotating assembly and the Z-axis lifting assembly respectively drive the crimping assembly to move in the X-axis direction, rotate around the theta-axis and lift in the Z-axis direction; the crimping assembly comprises a plurality of pressure heads which are arranged on the same horizontal plane and are adjustable in spacing. The crimping surfaces of the pressure heads are arranged opposite to the crimping surface of the product to be tested. And the crimping operation of products with different sizes is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic display crimping, in particular to a double-sided crimping device. Background Art

[0002] In the current actual production field, customers generally use manual crimping jigs for production operations. This traditional method has problems such as low efficiency, high labor intensity, and difficult to control manual operation errors, resulting in limited production output and unstable crimping success rate. With the gradual introduction of automated production lines, in order to achieve a dual improvement in production efficiency and quality, it is urgent to replace the manual crimping method of manual jigs with automatic crimping technology. However, the existing automatic crimping technology still has shortcomings in product specification adaptability, crimping position accuracy and automated control, and it is difficult to meet the efficient and high-precision crimping needs of diversified products. Therefore, the development of a bilateral crimping device that can flexibly adapt to products of different specifications to be tested, achieve precise crimping positioning, and have automated control functions has become a technical problem that needs to be solved urgently. Summary of the Invention

[0003] In order to solve all or part of the problems of the above-mentioned prior art, the present invention provides a bilateral crimping device, which divides the carrier unit into multiple groups of independently controllable vacuum adsorption areas and configures independently driven multi-dimensional motion crimping actuators on both sides to achieve compatible fixation of products of different specifications and precise crimping operations at multiple angles and positions.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A double-sided crimping device, comprising:

[0006] A carrier unit having a carrying surface for placing the product to be tested, wherein the carrying surface is divided into a plurality of independent adsorption areas, and the plurality of adsorption areas are configured to adapt to products to be tested of different specifications through different combinations;

[0007] The crimping unit includes a Y-axis drive mechanism and two groups of crimping actuators symmetrically arranged on opposite sides of the carrier unit, each group of the crimping actuators is slidably connected to the Y-axis drive mechanism through a separate slider; each group of the crimping actuators includes an X-axis drive assembly, a θ-axis rotation assembly, a Z-axis lifting assembly and a crimping assembly connected in sequence, the X-axis drive assembly, the θ-axis rotation assembly and the Z-axis lifting assembly respectively drive the crimping assembly to move in the X-axis direction, rotate around the θ-axis and lift and lower along the Z-axis direction; the crimping assembly includes a plurality of pressing heads on the same horizontal plane with adjustable spacing, and the crimping surface of the pressing head is arranged opposite to the crimping surface of the product to be tested.

[0008] It also includes a machine platform, the Y-axis drive mechanism is installed on the machine platform, the carrier unit is arranged above the Y-axis drive mechanism, and is fixedly connected to the machine platform through a supporting structure; the two groups of crimping actuators are respectively arranged at both ends of the Y-axis drive mechanism, and are configured to move synchronously or independently along the Y-axis direction under the drive of the Y-axis drive mechanism to approach or move away from the carrier unit.

[0009] The layout of the multiple adsorption areas includes: a central adsorption area located at the center of the carrying surface, which is configured to adsorb the product to be tested of the minimum size when the central adsorption area is activated alone; and also includes multiple extension areas, which are arranged around the central adsorption area, and each extension area is composed of multiple adsorption areas. The central adsorption area is combined with one or more adsorption areas in the extension area to adapt to adsorb products to be tested of different size ranges.

[0010] Part or all of the adsorption area within the expansion area is composed of two or more physically separated but interconnected sub-areas, and the sub-areas are arranged according to preset rules within each expansion area; the shape of the sub-areas is one of rectangular, circular or polygonal.

[0011] The crimping assembly includes a mounting base, a first mounting plate, a second mounting plate, an adjustment base and a plurality of pressing heads connected in sequence. The mounting base is connected to the Z-axis lifting assembly. The adjustment base is provided with a guide rail groove extending in a horizontal direction. The spacing between the pressing heads is adjustably arranged in the guide rail groove, and the crimping surfaces of the pressing heads are in the same horizontal plane.

[0012] The mounting base and the first mounting plate are connected via a rotation adjustment structure, and the first mounting plate, the second mounting plate, the adjustment base and the pressure head rotate synchronously around the mounting base via the rotation adjustment structure, and the rotation axis is parallel to the bearing surface of the stage unit.

[0013] The rotation adjustment structure includes a connecting part and a rotating part, the connecting part is configured to selectively fix or separate the first mounting plate and the mounting base, the rotating part includes a rotating shaft vertically fixed to the upper center position of the mounting base, and a bearing assembly arranged at a corresponding position of the first mounting plate and rotatably matched with the rotating shaft, and the axis of the rotating shaft is parallel to the bearing surface of the carrier unit.

[0014] The connecting portion includes at least two elongated through holes arranged on both sides of the mounting base, a threaded countersunk hole arranged at a corresponding position of the first mounting plate, and an adjusting bolt passing through the elongated through hole and cooperating with the threaded countersunk hole. The adjusting bolt is configured to slide in the elongated through hole to cooperate with adjusting the position of the first mounting plate, and lock the first mounting plate by tightening.

[0015] Horizontal adjustment structures are symmetrically arranged on both sides of the mounting base, and the horizontal adjustment structure includes a support seat, an adjusting nut fixed in the support seat, and a fine-tuning screw forming a threaded pair with the adjusting nut. The top surface of the fine-tuning screw is against the bottom surface of the first mounting plate, and the first mounting plate can be rotated around the rotation axis by rotating the fine-tuning screw.

[0016] It also includes a drive control unit and a pneumatic control unit, both of which are arranged on the machine platform through a rotating bracket and can rotate around an axis perpendicular to the machine platform; the drive control unit is electrically connected to the Y-axis drive mechanism, the X-axis drive assembly, the θ-axis rotation assembly and the Z-axis lifting assembly, respectively, and drives each axis to move according to control instructions; the pneumatic control unit includes a negative pressure source, a negative pressure pipeline independently connected to each of the adsorption areas, and a control valve arranged on each of the negative pressure pipelines, and the control valve is used to independently adjust the vacuum degree corresponding to the adsorption area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The figure is a schematic structural diagram of a double-sided crimping device according to an embodiment of the present invention.

[0019] Figure 2 This is a top view of a double-sided crimping device according to an embodiment of the present invention.

[0020] Figure 3 The figure is a side view of a double-sided crimping device according to an embodiment of the present invention.

[0021] Figure 4 The figure is a structural schematic diagram of a double-sided crimping device without the carrier unit according to an embodiment of the present invention.

[0022] Figure 5 The figure is a schematic structural diagram of a carrier unit in a double-sided crimping device according to an embodiment of the present invention.

[0023] Figure 6 The figure is a schematic structural diagram of a crimping assembly in a double-sided crimping device according to an embodiment of the present invention.

[0024] Figure 7 The figure is a side view of a crimping assembly in a double-sided crimping device according to an embodiment of the present invention.

[0025] Figure 8The figure is a schematic structural diagram of a second mounting plate in a double-sided crimping device according to an embodiment of the present invention.

[0026] Figure 9 The figure is a schematic structural diagram of an adjusting base in a double-sided crimping device according to an embodiment of the present invention.

[0027] Figure numerals: 1. Stage unit; 101. Central adsorption area; 2. Crimping unit; 3. Y-axis driving mechanism; 4. Crimping actuator; 5. Crimping assembly; 501. Mounting base; 502. First mounting plate; 503. Second mounting plate; 504. Adjustment base; 5041. Guide rail groove; 505. Press head; 506. Rotation adjustment structure; 5061. Connecting part; 5062. Rotation part; 507. Horizontal adjustment structure. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solutions in the specific embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] The embodiment of the present invention provides a double-sided crimping device, Figures 1 to 9 As shown, the device includes a carrier unit 1 and a crimping unit 2. The carrier unit 1 has a bearing surface for placing the product to be tested, and the bearing surface is divided into multiple independently controlled adsorption areas. The multiple adsorption areas can be adapted to products to be tested of different specifications through different combinations to achieve adaptive positioning and fixation of products to be tested of different specifications. The crimping unit 2 includes a Y-axis drive mechanism 3 and two groups of crimping actuators 4 symmetrically arranged on opposite sides of the carrier unit 1. Each group of crimping actuators 4 forms a sliding connection with the Y-axis drive mechanism 3 through a separate slider to achieve synchronous or independent movement along the Y-axis direction. Each group of crimping actuators 4 is sequentially configured with an X-axis drive assembly, a θ-axis rotation assembly, a Z-axis lifting assembly and a crimping assembly 5, wherein the X-axis drive assembly is used to drive the crimping assembly 5 to perform linear displacement in the horizontal direction (X-axis direction), the θ-axis rotation assembly can drive the crimping assembly 5 to adjust the angle around the vertical axis (θ-axis), and the Z-axis lifting assembly realizes the lifting movement of the crimping assembly 5 along the vertical direction (Z-axis). The crimping assembly 5 is provided with a plurality of pressure heads 505 with adjustable spacing. The crimping surface of each pressure head 505 is arranged relative to the product to be tested on the bearing surface of the carrier unit 1, and the mechanism design ensures that during the entire crimping process, the crimping surface of the crimping assembly 5 always remains parallel to the bearing surface of the carrier, so as to ensure the uniformity and accuracy of the crimping action.

[0030] The device also includes a machine, which serves as the basic support structure of the device. Its top surface is provided with a horizontal mounting reference surface, and the Y-axis drive mechanism 3 is fixedly mounted on the reference surface by a bolt group. The carrier unit 1 is erected above the Y-axis drive mechanism 3 through symmetrically distributed support columns or a frame-type support structure. Its bottom is rigidly connected to the machine body through positioning pins and fastening bolts to ensure the horizontal accuracy of the bearing surface. Two groups of crimping actuators 4 are arranged at the left and right ends of the Y-axis drive mechanism 3 in a mirror-symmetrical manner. The bottom of each actuator is slidably matched with the guide rail assembly of the Y-axis drive mechanism 3 through a slider. The slider is rigidly connected to the screw nut seat or motor mover of the drive mechanism. Under the drive of a servo motor or a stepper motor, it can realize synchronous linkage or independent single movement along the Y-axis direction, thereby accurately adjusting the horizontal distance between it and the carrier unit 1 according to the requirements of the crimping process to meet the requirements of the bilateral crimping operation space of products of different specifications.

[0031] The layout of multiple adsorption areas adopts a modular combination design, specifically including a central adsorption area 101 located at the geometric center of the bearing surface, and a plurality of extension areas distributed radially or in an array around the central adsorption area 101. The outline size of the central adsorption area 101 is adapted to the minimum specification of the product to be tested (6 inches), and when activated alone, such products can be fixed by vacuum adsorption. Each extension area is composed of a plurality of independently controlled adsorption areas, and the adsorption areas of each extension area can be selectively combined with the central adsorption area 101 to form adsorption patterns of different sizes and shapes, thereby adapting to products to be tested in different specification ranges (6-22 inches). Furthermore, part or all of the adsorption areas within the extension area adopt a sub-area segmentation design, and each adsorption area is composed of two or more sub-areas that are physically separated but interconnected through internal flow channels or external pipelines. These sub-areas are arranged in each extension area according to a preset matrix, concentric ring or grid rule, and their shapes include but are not limited to rectangles, circles or polygons. Through this design, the adsorption area can finely adjust the adsorption force distribution according to the edge contour of the product, while ensuring adsorption stability and reducing vacuum leakage in the non-contact area, improving adsorption efficiency and energy utilization. To further improve adsorption performance and energy efficiency, the micropores in each adsorption area adopt a differentiated density distribution design, specifically following the distribution rule of gradually decreasing from the center of the load-bearing surface to the outside. Based on the adsorption force characteristics of the product, this design densely arranges micropores in the central area of the load-bearing surface, which can gather more negative pressure channels in a limited space, form a high-intensity adsorption force, and ensure the precise positioning and stable fixation of the center position of the product; while appropriately reducing the micropore distribution density in the outer area of the load-bearing surface, on the one hand, it can avoid stress concentration damage to the product edge due to excessive adsorption force, and on the other hand, by reducing the leakage area of negative pressure gas, a dynamic balance of "gas adsorption amount greater than leakage amount" is formed, while ensuring the adsorption effect, significantly reducing negative pressure gas consumption and improving system energy efficiency. It should be noted that the area division method, the number and shape of sub-areas, and the distribution of micropore density in the above layout can be flexibly set according to the actual application scenario, and the present invention is not limited to this.

[0032] The crimping assembly 5 includes a mounting base 501, a first mounting plate 502, a second mounting plate 503, an adjustment base 504 and a plurality of pressing heads 505 connected in sequence, wherein the mounting base 501 is fixedly connected to the output end of the Z-axis lifting assembly.

[0033] The mounting base 501 and the first mounting plate 502 are connected via a rotation adjustment structure 506. This structure includes a connection portion 5061 for positioning and fixing, and a rotation portion 5062 for adjusting the angle. This structure allows for angular adjustment and locking of the first mounting plate 502 relative to the mounting base 501, and ensures that the first mounting plate 502, the second mounting plate 503, the adjustment base 504, and the pressure head 505 rotate synchronously about an axis parallel to the support surface of the stage. The rotation portion 5062 includes a cylindrical rotation shaft vertically fixed to the center of the upper portion of the mounting base 501. The axis of the rotation shaft is parallel to the support surface of the stage unit 1. A bearing assembly that rotatably cooperates with the rotation shaft is embedded in a corresponding position on the first mounting plate 502. The interference fit between the inner ring of the bearing and the rotation shaft, and the clearance fit between the outer ring of the bearing and the mounting plate form a hinged connection capable of 360° rotation. Connecting portions 5061 are provided on either side of the mounting base 501 and specifically comprise at least two elongated through-holes formed in the side of the mounting base 501, threaded countersunk holes disposed at corresponding positions on the first mounting plate 502, and adjustment bolts passing through the elongated through-holes and engaging with the threaded countersunk holes. When the adjustment bolts are loosened, the first mounting plate 502 can rotate slightly about the rotation axis. The sliding range of the adjustment bolts within the elongated through-holes defines the range of angle adjustment. When the bolts are tightened, the angular position of the first mounting plate 502 is locked by friction between the bolt head and the surface of the mounting base 501. To achieve high-precision angular fine-tuning, horizontal adjustment structures 507 are symmetrically provided on either side of the mounting base 501, working in conjunction with the rotational adjustment structure 506. These structures comprise a support base secured to the side of the mounting base 501, an adjustment nut embedded within the support base, and a fine-tuning screw forming a threaded pair with the adjustment nut. The top surface of the fine-tuning screw is in contact with the bottom surface of the first mounting plate 502 through a pad. The outer surface of the screw is provided with a thousand-level thread scale. By rotating the fine-tuning screw clockwise or counterclockwise, the small feed amount of the thread transmission can be used to push the first mounting plate 502 to rotate precisely around the rotation axis, and cooperate with the bolt locking of the connecting part 5061 to realize the angle adjustment of the crimping assembly 5 within a certain range.

[0034] When there is a parallelism deviation between the pressing surface of the pressing head 505 and the bearing surface of the carrier, angle compensation can be performed through the rotation adjustment structure 506 and the horizontal adjustment structure 507 between the mounting base 501 and the first mounting plate 502. The specific adjustment process is as follows: first, loosen the adjusting bolt of the connecting part 5061 to release the locking state of the first mounting plate 502 and the mounting base 501. At this time, the first mounting plate 502 can rotate slightly around the rotating axis (whose axis is parallel to the carrier bearing surface) vertically fixed to the mounting base 501; synchronously rotate the fine-tuning screws in the horizontal adjustment structures 507 on both sides, and use the thousand-level thread scale on the outer surface of the screw to perform precise angle fine-tuning - when the fine-tuning screw is rotated clockwise or counterclockwise, the pad on the bottom surface of the first mounting plate 502 is pushed through the thread pair transmission, thereby driving the entire crimping assembly 5 to rotate around the axis of the rotating shaft until the parallelism of the crimping surface and the carrier bearing surface meets the process requirements; finally, tighten the adjusting bolt, and lock the angular position of the first mounting plate 502 through the friction between the long strip through hole and the bolt head, so that the crimping surface of the crimping assembly 5 always remains parallel to the carrier bearing surface during the crimping process. This adjustment mechanism achieves high-precision calibration of the parallelism of the crimping surfaces through the linkage design of the mechanical structure, effectively avoiding problems such as uneven crimping pressure or position offset caused by angle deviation.

[0035] The top surface of the mounting base 501 is provided with a wire fixing portion, which includes an elastic pressure plate assembly. Its specific structure is as follows: one end of the elastic pressure plate is rotatably connected to the hinged seat on the top surface of the mounting base 501 via a cylindrical pin, allowing the elastic pressure plate to rotate within a range of 0-180 degrees around the pin axis; the other end of the elastic pressure plate is provided with a hook portion, which forms a detachable locking structure with an annular buckle seat fixed at a corresponding position on the mounting base 501. The elastic pressure plate body is made of 65Mn spring steel that has been quenched and tempered. A high-elasticity silicone cushioning layer of a certain thickness is fixed to the inner surface of the wire. The surface of this cushioning layer is provided with a grid-like anti-slip pattern, which effectively prevents the wire from displacement or surface scratches caused by vibration during the crimping process. To secure the wire, press down on the free end of the elastic pressure plate, causing the hook to engage the locking groove of the annular buckle seat and secure it. The deformation of the elastic pressure plate generates a clamping force that presses the wire against the positioning surface of the mounting base 501. To release the wire, pull up on the free end of the elastic pressure plate, releasing the hook from the locking groove. This dual-locking mechanism of elastic clamping and self-locking buckle ensures reliable positioning of input and output wires during crimping operations. The silicone cushioning layer also provides both wire protection and anti-slip properties.

[0036] The upper surface of the adjustment base 504 is provided with at least one parallel guide groove 5041 extending along its length. The guide groove 5041 utilizes a dovetail groove structure with a trapezoidal or rectangular cross-section. Each guide groove 5041 is provided with a corresponding slider that can slide along its extension direction. The pressure head 505 is detachably connected to the slider via a locking member. Specifically, the locking member is a fastening bolt that passes through the pressure head 505, with the end of the bolt forming a threaded pair with a threaded hole at the top of the slider. When the fastening bolt is tightened, an axial preload is generated between the fixing portion and the slider, causing the top surface of the slider to tightly fit against the top of the guide groove 5041. Simultaneously, the side surface of the slider forms line or surface contact with the sidewall of the guide groove 5041. The frictional locking force generated between the contact surfaces secures the slider in the set position of the guide groove 5041, thereby locking the pressure head 505 in place on the adjustment base 504. This structural design allows the pressure head 505 to be adjusted in spacing along the guide rail groove 5041 according to the crimping point layout of the product to be tested, and can be quickly fixed by a single bolt locking method to ensure the stability of the position of the pressure head 505 during the crimping operation.

[0037] The adjustment base 504 and its pressure head 505 are removably mounted to the lower surface of the second mounting plate 503 via a quick-positioning mechanism. This mechanism includes multiple U-shaped positioning slots evenly distributed along one edge of the second mounting plate 503, with their openings facing the adjustment base 504. It also includes T-shaped positioning blocks positioned on the upper surface of the adjustment base 504, with the neck width of the T-shaped positioning blocks forming a clearance fit with the opening width of the U-shaped positioning slots. Each U-shaped positioning slot is flanked by a locking knob. The locking knob comprises an adjustment bolt that extends through the second mounting plate 503, a matching threaded hole at a corresponding position on the adjustment base 504, and a handle at the top end of the adjustment bolt. The locking knob also includes a compression spring mounted on the adjustment bolt, located between the upper surface of the second mounting plate 503 and the handle. When the handle is pressed down and rotated, the compression spring generates an axial preload, maintaining a tight fit between the second mounting plate 503 and the adjustment base 504. Through this structure, the adjustment base 504 can be quickly positioned and secured to the second mounting plate 503. The T-shaped positioning block and U-shaped positioning slot ensure precise installation, while the compression spring design of the locking knob provides a stable preload, ensuring a secure connection. The sidewalls of the guide rail slot 5041 of the adjustment base 504 are also equipped with a positioning scale to indicate the position of the pressure head 505 within the guide rail slot 5041.

[0038] The first mounting plate 502 is provided with a plurality of threaded countersunk holes, and the second mounting plate 503 is provided with bolt through holes at corresponding positions. The two are fixedly connected by fastening bolts passing through the bolt through holes and the threaded countersunk holes.

[0039] The double-sided crimping device of the present invention also includes a drive control unit and a pneumatic control unit, both of which are mounted on the top of the machine via a rotatable bracket. The rotatable bracket utilizes a vertical bearing seat and a rotating shaft. The bearing seat is fixed to the machine surface, and the rotating shaft extends vertically through the inner ring of the bearing seat and is fixedly connected to the control unit's mounting base. This allows the drive control unit and pneumatic control unit to rotate freely within a range of 0-360 degrees about an axis perpendicular to the machine, facilitating equipment commissioning and maintenance from various angles. The drive control unit incorporates a multi-axis motion controller, servo driver, and electrical control circuitry. Shielded cables connect the drive control unit to the servo motor of the Y-axis drive mechanism 3, the linear module of the X-axis drive assembly, the rotary motor of the θ-axis rotation assembly, and the lead screw stepper motor of the Z-axis lift assembly. The drive control unit receives control commands from a host computer and drives each axis based on preset motion parameters to achieve precise linear displacement, angular rotation, and lifting motion. The pneumatic control unit includes a negative pressure source, a negative pressure line independently connected to each suction zone, and a control valve located in each negative pressure line for independently adjusting the vacuum level in the corresponding suction zone. After receiving the control command, the control valve can independently control the opening and closing of the negative pressure pipeline in the corresponding area, so as to achieve precise adsorption or rapid release of the product to be tested.

[0040] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A double-sided crimping device, characterized in that: include: A carrier unit having a carrying surface for placing the product to be tested, wherein the carrying surface is divided into a plurality of independent adsorption areas, and the plurality of adsorption areas are configured to adapt to products to be tested of different specifications through different combinations; The crimping unit includes a Y-axis drive mechanism and two groups of crimping actuators symmetrically arranged on opposite sides of the carrier unit, each group of the crimping actuators is slidably connected to the Y-axis drive mechanism through a separate slider; each group of the crimping actuators includes an X-axis drive assembly, a θ-axis rotation assembly, a Z-axis lifting assembly and a crimping assembly connected in sequence, the X-axis drive assembly, the θ-axis rotation assembly and the Z-axis lifting assembly respectively drive the crimping assembly to move in the X-axis direction, rotate around the θ-axis and lift and lower along the Z-axis direction; the crimping assembly includes a plurality of pressing heads on the same horizontal plane with adjustable spacing, and the crimping surface of the pressing head is arranged opposite to the crimping surface of the product to be tested.

2. The device according to claim 1, characterized in that It also includes a machine platform, the Y-axis drive mechanism is installed on the machine platform, the carrier unit is arranged above the Y-axis drive mechanism, and is fixedly connected to the machine platform through a supporting structure; the two groups of crimping actuators are respectively arranged at both ends of the Y-axis drive mechanism, and are configured to move synchronously or independently along the Y-axis direction under the drive of the Y-axis drive mechanism to approach or move away from the carrier unit.

3. The device according to claim 1, characterized in that The layout of the multiple adsorption areas includes: a central adsorption area located at the center of the carrying surface, which is configured to adsorb the product to be tested of the minimum size when the central adsorption area is activated alone; and also includes multiple extension areas, which are arranged around the central adsorption area, and each extension area is composed of multiple adsorption areas. The central adsorption area is combined with one or more adsorption areas in the extension area to adapt to adsorb products to be tested of different size ranges.

4. The device according to claim 3, characterized in that Part or all of the adsorption area within the expansion area is composed of two or more physically separated but interconnected sub-areas, and the sub-areas are arranged according to preset rules within each expansion area; the shape of the sub-areas is one of rectangular, circular or polygonal.

5. The device according to claim 1, characterized in that The crimping assembly includes a mounting base, a first mounting plate, a second mounting plate, an adjustment base and a plurality of pressing heads connected in sequence. The mounting base is connected to the Z-axis lifting assembly. The adjustment base is provided with a guide rail groove extending in a horizontal direction. The spacing between the pressing heads is adjustably arranged in the guide rail groove, and the crimping surfaces of the pressing heads are in the same horizontal plane.

6. The device according to claim 5, characterized in that The mounting base and the first mounting plate are connected via a rotation adjustment structure, and the first mounting plate, the second mounting plate, the adjustment base and the pressure head rotate synchronously around the mounting base via the rotation adjustment structure, and the rotation axis is parallel to the bearing surface of the stage unit.

7. The device according to claim 6, characterized in that The rotation adjustment structure includes a connecting part and a rotating part, the connecting part is configured to selectively fix or separate the first mounting plate and the mounting base, the rotating part includes a rotating shaft vertically fixed to the upper center position of the mounting base, and a bearing assembly arranged at a corresponding position of the first mounting plate and rotatably matched with the rotating shaft, and the axis of the rotating shaft is parallel to the bearing surface of the carrier unit.

8. The device according to claim 7, characterized in that The connecting portion includes at least two elongated through holes arranged on both sides of the mounting base, a threaded countersunk hole arranged at a corresponding position of the first mounting plate, and an adjusting bolt passing through the elongated through hole and cooperating with the threaded countersunk hole. The adjusting bolt is configured to slide in the elongated through hole to cooperate with adjusting the position of the first mounting plate, and lock the first mounting plate by tightening.

9. The device according to claim 7, characterized in that Horizontal adjustment structures are symmetrically arranged on both sides of the mounting base, and the horizontal adjustment structure includes a support seat, an adjusting nut fixed in the support seat, and a fine-tuning screw forming a threaded pair with the adjusting nut. The top surface of the fine-tuning screw is against the bottom surface of the first mounting plate, and the first mounting plate can be rotated around the rotation axis by rotating the fine-tuning screw.

10. The device according to claim 2, characterized in that It also includes a drive control unit and a pneumatic control unit, both of which are arranged on the machine platform through a rotating bracket and can rotate around an axis perpendicular to the machine platform; the drive control unit is electrically connected to the Y-axis drive mechanism, the X-axis drive assembly, the θ-axis rotation assembly and the Z-axis lifting assembly, respectively, and drives each axis to move according to control instructions; the pneumatic control unit includes a negative pressure source, a negative pressure pipeline independently connected to each of the adsorption areas, and a control valve arranged on each of the negative pressure pipelines, and the control valve is used to independently adjust the vacuum degree corresponding to the adsorption area.

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