A pressure plate fixing device

Abstract

This application discloses a pressure plate fixing device, relating to the field of fixing devices, comprising: a support plate having multiple adsorption holes; the support plate having a support surface, a first abutment edge and a second abutment edge protruding from the support surface; the support plate having a first through hole; a vent plate fixedly disposed below the support plate, the vent plate having a second through hole, the second through hole having the same shape as the first through hole and being aligned with the first through hole in a third direction; vent holes on the vent plate; a first slide rail fixedly disposed below the vent plate, the first slide rail extending along a first direction; a first mounting seat slidably connected to the first slide rail, the first mounting seat having a second slide rail extending in a third direction fixedly disposed thereon; a first connecting seat slidably connected to the second slide rail; and a first pressure plate fixedly connected to the first connecting seat, the first pressure plate being located above the support surface. This pressure plate fixing device has a compact structure, high space utilization, and flexible pressure plate adjustment, and can adapt to the stable fixing requirements of workpieces of various specifications.

Description

Technical Field

[0001] This application relates to the field of fixing device technology, and in particular to a pressure plate fixing device. Background Technology

[0002] In fields such as electronic component assembly, PCB board processing, and thin-plate component production, it is often necessary to fix workpieces in place for subsequent processes such as dispensing, soldering, surface mounting, and testing. Common fixing methods include mechanical clamping and vacuum adsorption, with vacuum adsorption being widely used because it does not damage the workpiece surface and is suitable for thin-plate workpieces.

[0003] However, traditional vacuum adsorption fixation devices have the following technical problems in practical applications:

[0004] First, the fixing force of vacuum adsorption alone is limited. For workpieces that are heavy, small in area, or have uneven surfaces, the adsorption force generated by vacuum adsorption is often insufficient to firmly fix the workpiece. During subsequent processing or inspection, the workpiece is prone to displacement or loosening due to external forces (such as the contact force of the dispensing head or the pressure of the inspection probe), affecting processing accuracy and product quality.

[0005] Secondly, vacuum adsorption requires a high degree of surface flatness of the workpiece. When the workpiece itself is warped, deformed, or has a rough surface, a good seal cannot be formed between the adsorption holes and the workpiece, resulting in a decrease in vacuum level, a significant weakening of adsorption force, or even complete failure to adsorb. To solve this problem, existing technologies have attempted to increase the number of adsorption holes, improve the vacuum level, or use contour suction cups, but these solutions either increase equipment costs and energy consumption or remain limited in their adaptability to different workpieces.

[0006] Furthermore, some devices employ a combination of vacuum adsorption and mechanical clamping, but the driving mechanisms for both are often independent and dispersed, resulting in a loose structure and bulky size for the entire device. More importantly, the adjustment capability of the clamping mechanism in existing combined solutions is limited. The position of the pressure plate is fixed or can only be finely adjusted in one direction, making it difficult to flexibly adjust the clamping position according to the shape and size of different workpieces. This makes it impossible to provide effective clamping to critical parts of the workpiece (such as edges and corners), resulting in limited improvement in the fixing effect. Utility Model Content

[0007] In view of the shortcomings of the prior art, one of the objectives of this specification is to provide a pressure plate fixing device that is compact in structure, has high space utilization, and flexible in pressure plate adjustment, and can meet the stable fixing requirements of workpieces of various specifications.

[0008] To achieve the above objectives, this specification provides a pressure plate fixing device, comprising:

[0009] A support plate is provided with a plurality of adsorption holes; the support plate has a support surface, a first abutting edge and a second abutting edge protruding from the support surface; the first abutting edge extends along a first direction, and the second abutting edge extends along a second direction; the support plate is provided with a first through hole, the first through hole having a first length in the first direction;

[0010] A vent plate is fixedly installed below the support plate. The vent plate has a second through hole, which has the same shape as the first through hole and is aligned with the first through hole in the third direction. The vent plate has vent holes for connecting to a vacuum device through a pipeline. The first direction, the second direction, and the third direction are perpendicular to each other.

[0011] A first slide rail is fixedly installed below the vent plate, and the first slide rail extends along a first direction;

[0012] A first mounting base is slidably connected to the first slide rail, and a second slide rail extending in a third direction is fixedly provided on the first mounting base; a first connecting seat is slidably connected to the second slide rail; the first connecting seat passes through the first through hole and the second through hole.

[0013] A first pressure plate is fixedly connected to the first connecting seat, and the first pressure plate is located above the bearing surface.

[0014] In a preferred embodiment, the length of the first abutting edge is greater than the length of the second abutting edge; there are two first through holes and two second through holes, and the two first through holes are spaced apart in the second direction; the first pressure plate extends along the second direction, and the two ends of the first pressure plate in the second direction are respectively fixedly connected to two first connecting seats; the two first mounting seats move synchronously along the first direction; the two first connecting seats move synchronously along the third direction.

[0015] In a preferred embodiment, the two first mounting seats are connected to the same first driving member by a timing belt, and the first driving member is used to drive the two first mounting seats to move simultaneously along the first slide rail.

[0016] In a preferred embodiment, the first length is less than the length of the first abutting edge; the first through hole is disposed away from the second abutting edge.

[0017] In a preferred embodiment, the support plate is further provided with a third through hole, the third through hole having a second length in a second direction; the vent plate is provided with a fourth through hole, the fourth through hole having the same shape as the third through hole and being aligned with the third through hole in a third direction; a third slide rail extending in a second direction is also fixedly provided below the vent plate; a second mounting base is slidably connected to the third slide rail, and a fourth slide rail extending in a third direction is fixedly provided on the second mounting base; a second connecting base is slidably connected to the fourth slide rail; the second connecting base passes through the third through hole and the fourth through hole; a second pressure plate is fixedly connected to the first connecting base, and the second pressure plate is located above the support surface.

[0018] In a preferred embodiment, the second length is less than the length of the second abutment edge; the third through hole is disposed away from the first abutment edge.

[0019] In a preferred embodiment, the second pressure plate extends along the first direction, and the middle position of the second pressure plate is fixedly connected to the second connecting seat.

[0020] In a preferred embodiment, the length of the second pressure plate is less than the length of the first pressure plate.

[0021] In a preferred embodiment, the second mounting base is connected to a second driving member, which drives the second mounting base to move along the first slide rail simultaneously.

[0022] In a preferred embodiment, the vent plate is provided with a plurality of mounting holes for fasteners to pass through in order to secure the pressure plate fixing device in a predetermined position.

[0023] The pressure plate fixing device provided in this embodiment includes a bearing plate, a vent plate, a first slide rail, a first mounting base, and a first pressure plate. It has a compact structure, high space utilization, and flexible pressure plate adjustment, and can adapt to the stable fixing requirements of workpieces of various specifications. Specifically, this pressure plate fixing device has the following advantages:

[0024] 1. The pressure plate provides stable and reliable mechanical clamping force, offering superior fixation compared to simple vacuum adsorption: This solution adds a movable first pressure plate to the vacuum adsorption system, applying mechanical clamping force to the workpiece from above. Vacuum adsorption provides initial positioning and adsorption, ensuring the workpiece adheres to the supporting surface; the first pressure plate applies additional clamping force from above, firmly fixing the workpiece to the supporting plate. Compared to existing technologies relying solely on vacuum adsorption, this invention significantly improves the workpiece's fixation stability through the dual action of mechanical clamping and vacuum adsorption. Even if the workpiece exhibits some degree of warping or deformation, or is heavy or has an uneven surface, the mechanical clamping force of the pressure plate can overcome these disadvantages, ensuring the workpiece does not shift or loosen during subsequent processes such as gluing, welding, and inspection, significantly improving processing accuracy and product yield.

[0025] 2. The pressure plate passes through the through hole of the support plate, resulting in a compact structure that does not occupy upper space: In this design, the support plate has a first through hole, a first connecting seat passes through the first and second through holes, and the first pressure plate is fixedly connected to the first connecting seat and located above the support surface. This "embedded" layout allows the pressure plate's driving mechanism (first slide rail, second slide rail, first mounting seat, first connecting seat, etc.) to be located below the support plate, with only the first pressure plate itself located above the support surface. Compared to traditional cantilever or side-pressing pressure plate structures, the pressure plate of this invention "rises" from inside the support plate, without occupying additional space above the support plate, leaving ample operating space for other actuators such as the dispensing head and camera detection module, and avoiding motion interference.

[0026] 3. Double-layer slide rails enable flexible multi-directional adjustment of the pressure plate to adapt to workpieces of different sizes: This solution features a first slide rail extending in a first direction fixed below the vent plate. A first mounting base is slidably connected to the first slide rail, and a second slide rail extending in a third direction is fixedly mounted on the first mounting base. A first connecting base is slidably connected to the second slide rail. Through the first slide rail, the first pressure plate can move in the first direction, adjusting its lateral position on the support plate to align with key parts of the workpiece requiring clamping (such as edges, corners, or easily warped areas). Through the second slide rail, the first pressure plate can rise and fall in the third direction (vertical direction) to clamp and release the workpiece. This double-layer slide rail design allows the first pressure plate to be flexibly adjusted in both the first and third directions, adapting to the clamping requirements of workpieces of different sizes and shapes. When changing workpiece specifications, only the position of the pressure plate needs to be adjusted via program control; manual replacement of the pressure plate or adjustment of the tooling is unnecessary, improving the equipment's versatility and automation level.

[0027] 4. The synergistic effect of vacuum adsorption and mechanical clamping significantly improves fixation reliability: In this solution, vacuum adsorption provides a uniformly distributed bottom fixing force, allowing the workpiece to initially adhere to the supporting surface and preventing horizontal slippage. The first pressure plate provides a concentrated mechanical clamping force, firmly pressing the workpiece vertically. The synergistic effect of these two mechanisms forms a dual fixation mechanism of "adsorption positioning + clamping locking." Specifically, when the workpiece is placed on the supporting surface, the vacuum unit operates, generating negative pressure in the adsorption holes to adsorb the bottom of the workpiece. Subsequently, the first pressure plate descends, applying mechanical clamping force to the workpiece. Compared to solutions relying solely on vacuum adsorption, this solution maintains the workpiece's fixed state even when subjected to external impacts or vibrations, preventing displacement even if the vacuum adsorption experiences brief fluctuations. This dual fixation mechanism is particularly suitable for working environments requiring high contact forces or vibrations (such as high-speed dispensing and probe inspection), significantly improving equipment operational stability and processing consistency.

[0028] 5. The vent plate integrates the vacuum channel and slide rail mounting base, resulting in a compact structure: The vent plate serves both as the vacuum adsorption function (with vent holes that communicate with the adsorption holes of the support plate) and as the mounting base for the first slide rail (fixed below the vent plate). This multi-functional integrated design avoids the need for a separate slide rail mounting plate, reducing the number of components and lowering the height and overall volume of the device. Simultaneously, the second through hole on the vent plate aligns with the first through hole on the support plate, providing a passage for the first connecting seat. This allows the pressure plate's drive mechanism to pass through the vent plate and support plate from below to the top, achieving a compact layout where the drive mechanism and pressure plate are "separated at the top and bottom, and connected in the middle."

[0029] 6. Integrated motion guidance and limiting for smooth operation: The first through hole has a first length in the first direction, and the first connecting seat passes through this through hole. The through hole not only provides a passage for the first connecting seat but also limits its range of movement in the first direction. When the first connecting seat moves along the first slide rail with the first mounting base, the edge of the first through hole acts as a guide and limiter, preventing excessive movement or deflection of the first connecting seat. This design, which integrates the guiding and limiting functions into the through hole of the carrier plate, eliminates the need for additional limiting blocks or sensors, simplifying the structure and reducing costs.

[0030] 7. Convenient maintenance and high degree of modularity: The functional modules in this design are relatively independent: the support plate and its adsorption holes constitute the workpiece support module; the vent plate and vacuum components constitute the vacuum adsorption module; the first slide rail, second slide rail, first mounting base, first connecting base, and first pressure plate constitute the pressure plate adjustment module. The modules are assembled using bolt connections or slide rail connections, facilitating individual disassembly and replacement. When maintaining the vacuum system, there is no need to disassemble the pressure plate adjustment module; when replacing the pressure plate or adjusting its stroke, there is no need to compromise the vacuum system's sealing. This modular design improves the maintainability of the equipment and reduces maintenance costs.

[0031] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the scope of the embodiments of the present invention is not limited thereto.

[0032] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0033] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a three-dimensional structural diagram of a pressure plate fixing device provided in this embodiment;

[0036] Figure 2 for Figure 1 Schematic diagram of the structure after removing the supporting plate;

[0037] Figure 3 for Figure 1 Another structural diagram from a different perspective;

[0038] Figure 4 This is a schematic diagram of the connection structure on the third slide rail in this embodiment;

[0039] Figure 5 This is a schematic diagram of the connection structure on the first slide rail in this embodiment.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Support plate; 11. Adsorption hole; 12. Support surface; 13. First abutment edge; 14. Second abutment edge; 15. First through hole; 16. Third through hole;

[0042] 2. Ventilation plate; 21. Second through hole; 22. Fourth through hole; 23. Ventilation hole; 24. Mounting hole;

[0043] 3. First slide rail; 31. First mounting base; 32. Second slide rail; 33. First connecting base;

[0044] 4. First pressure plate; 41. Synchronous belt; 42. First drive component;

[0045] 5. Third slide rail; 51. Second mounting base; 52. Fourth slide rail; 53. Second connecting base;

[0046] 6. Second pressure plate; 61. Second driving component; 7. Connector;

[0047] Y, first direction; X, second direction; Z, third direction. Detailed Implementation

[0048] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0049] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or may be interposed with another element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or may be interposed with another element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0051] Please see Figures 1 to 5 This application provides a pressure plate fixing device, including: a bearing plate 1, a vent plate 2, a first slide rail 3, a first mounting base 31, and a first pressure plate 4. It has a compact structure, high space utilization, and flexible pressure plate adjustment, and can adapt to the stable fixing requirements of workpieces of various specifications.

[0052] The support plate 1 has multiple adsorption holes 11. The support plate 1 has a support surface 12, a first abutment edge 13 protruding from the support surface 12, and a second abutment edge 14. The first abutment edge 13 extends along a first direction Y, and the second abutment edge 14 extends along a second direction X. The support plate 1 has a first through hole 15, which has a first length in the first direction Y.

[0053] like Figure 2 As shown, the vent plate 2 is fixedly installed below the support plate 1. The vent plate 2 has a second through hole 21, which has the same shape as the first through hole 15 and is aligned with the first through hole 15 in the third direction Z. The vent plate 2 has a vent hole 23 for connecting to a vacuum pump via a pipeline, such as a vacuum pump. The vent hole 23 can be connected to the vacuum pump via a connector 7. The first direction Y, the second direction X, and the third direction Z are mutually perpendicular. Specifically, the third direction Z is the vertical direction, and the first direction Y and the second direction X are two perpendicular directions in the horizontal plane.

[0054] like Figure 5 As shown, the first slide rail 3 is fixedly disposed below the vent plate 2, and extends along the first direction Y. A first mounting base 31 is slidably connected to the first slide rail 3. A second slide rail 32 extending along the third direction Z is fixedly disposed on the first mounting base 31. A first connecting seat 33 is slidably connected to the second slide rail 32. The first connecting seat 33 passes through the first through hole 15 and the second through hole 21. Figure 1 and Figure 2 As shown, the first pressure plate 4 is fixedly connected to the first connecting seat 33. The first pressure plate 4 is located above the bearing surface 12.

[0055] The pressure plate fixing device provided in this embodiment has the following advantages:

[0056] 1. The pressure plate provides stable and reliable mechanical clamping force, with a better fixing effect than simple vacuum adsorption: This solution adds a movable first pressure plate 4 to the vacuum adsorption, applying mechanical clamping force to the workpiece from above. Vacuum adsorption provides initial positioning and adsorption, allowing the workpiece to adhere to the supporting surface 12; the first pressure plate 4 applies additional clamping force from above, firmly fixing the workpiece to the supporting plate 1. Compared with existing technologies that rely solely on vacuum adsorption, this invention significantly improves the fixing stability of the workpiece through the dual action of mechanical clamping and vacuum adsorption. Even if the workpiece has a certain degree of warping deformation, or if the workpiece is heavy or has an uneven surface, the mechanical clamping force of the pressure plate can overcome these unfavorable factors, ensuring that the workpiece will not shift or loosen during subsequent processes such as dispensing, welding, and inspection, significantly improving processing accuracy and product yield.

[0057] 2. The pressure plate passes through the through hole of the support plate 1, resulting in a compact structure that does not occupy the space above: In this design, the support plate 1 has a first through hole 15, a first connecting seat 33 passes through the first through hole 15 and a second through hole 21, and a first pressure plate 4 is fixedly connected to the first connecting seat 33 and located above the support surface 12. This "embedded" layout allows the driving mechanism of the pressure plate (first slide rail 3, second slide rail 32, first mounting seat 31, first connecting seat 33, etc.) to be located below the support plate 1, with only the first pressure plate 4 itself located above the support surface 12. Compared to traditional cantilever or side-pressing pressure plate structures, the pressure plate of this invention "rises" from inside the support plate 1, without occupying additional space above the support plate 1, leaving ample operating space for other actuators such as the dispensing head and camera detection module, and avoiding motion interference.

[0058] 3. Double-layer slide rails enable flexible multi-directional adjustment of the pressure plate to adapt to workpieces of different sizes: In this design, a first slide rail 3 extending along the first direction Y is fixedly installed below the vent plate 2. A first mounting base 31 is slidably connected to the first slide rail 3. A second slide rail 32 extending along the third direction Z is fixedly installed on the first mounting base 31. A first connecting base 33 is slidably connected to the second slide rail 32. Through the first slide rail 3, the first pressure plate 4 can move in the first direction Y, adjusting its lateral position on the support plate 1 to align with the key parts of the workpiece that need to be pressed (such as edges, corners, or easily warped areas). Through the second slide rail 32, the first pressure plate 4 can rise and fall in the third direction Z (i.e., the vertical direction) to achieve pressing and releasing of the workpiece. This double-layer slide rail series design allows the first pressure plate 4 to flexibly adjust its position in both the first direction Y and the third direction Z, adapting to the pressing needs of workpieces of different sizes and shapes. When changing workpiece specifications, only the position of the pressure plate needs to be adjusted through program control, without the need for manual replacement of the pressure plate or adjustment of the tooling, improving the versatility and automation level of the equipment.

[0059] 4. The synergistic effect of vacuum adsorption and mechanical clamping significantly improves fixation reliability: In this solution, vacuum adsorption provides a uniformly distributed bottom fixing force, allowing the workpiece to initially adhere to the bearing surface 12 and preventing horizontal slippage. The first pressure plate 4 provides a concentrated mechanical clamping force, firmly pressing the workpiece vertically. The synergistic effect of these two mechanisms forms a dual fixation mechanism of "adsorption positioning + clamping locking." Specifically, when the workpiece is placed on the bearing surface 12, the vacuum unit operates, generating negative pressure in the adsorption holes 11 to adsorb the bottom of the workpiece. Subsequently, the first pressure plate 4 descends, applying mechanical clamping force to the workpiece. Compared to solutions relying solely on vacuum adsorption, this solution ensures that even with brief fluctuations in vacuum adsorption, the mechanical clamping force of the pressure plate maintains the workpiece's fixed state and prevents displacement when subjected to external impacts or vibrations. This dual fixation mechanism is particularly suitable for working environments requiring high contact forces or vibrations (such as high-speed dispensing and probe detection), significantly improving equipment operational stability and processing consistency.

[0060] 5. The vent plate 2 integrates a vacuum channel and a slide rail mounting base, resulting in a compact structure: The vent plate 2 serves both as a vacuum adsorption function (with vent holes 23 that connect to the adsorption holes 11 of the support plate 1) and as a mounting base for the first slide rail 3 (fixed below the vent plate 2). This multi-functional integrated design avoids the need for an additional independent slide rail mounting plate, reducing the number of parts and lowering the height and overall volume of the device. Simultaneously, the second through hole 21 on the vent plate 2 aligns with the first through hole 15 on the support plate 1, providing a passage for the first connecting seat 33 to pass through. This allows the pressure plate's drive mechanism to pass through the vent plate 2 and support plate 1 from below to reach the top, achieving a compact layout where the drive mechanism and pressure plate are "separated at the top and bottom, and connected in the middle."

[0061] 6. Integrated motion guidance and limiting for smooth operation: The first through hole 15 has a first length in the first direction Y, and the first connecting seat 33 passes through this through hole. The through hole not only provides a passage for the first connecting seat 33, but also limits the range of movement of the first connecting seat 33 in the first direction Y. When the first connecting seat 33 moves along the first slide rail 3 with the first mounting base 31, the edge of the first through hole 15 acts as a guide and limiter, preventing the first connecting seat 33 from moving excessively or deflecting. This design, which integrates the guiding and limiting functions into the through hole of the carrier plate 1, eliminates the need for additional limiting blocks or sensors, simplifying the structure and reducing costs.

[0062] 7. Convenient maintenance and high degree of modularity: The functional modules in this design are relatively independent: the support plate 1 and its adsorption holes 11 constitute the workpiece support module; the vent plate 2 and the vacuum extraction components constitute the vacuum adsorption module; the first slide rail 3, the second slide rail 32, the first mounting base 31, the first connecting base 33, and the first pressure plate 4 constitute the pressure plate adjustment module. The modules are assembled using bolt connections or slide rail connections, facilitating individual disassembly and replacement. When maintaining the vacuum system, there is no need to disassemble the pressure plate adjustment module; when replacing the pressure plate or adjusting its stroke, there is no need to compromise the vacuum system's sealing. This modular design improves the maintainability of the equipment and reduces maintenance costs.

[0063] In this embodiment, the length of the first abutment edge 13 is greater than the length of the second abutment edge 14, giving the positioning reference of the support plate 1 a clear distinction between primary and secondary elements. The first abutment edge 13, as the primary positioning edge, provides a longer guiding distance, which is beneficial for the quick and accurate positioning of the workpiece on the support plate 1. There are two first through holes 15 and two through holes 21, spaced apart in the second direction X. The first pressure plate 4 extends along the second direction X, and its two ends in the second direction X are fixedly connected to two first connecting seats 33, forming a "double-point support, synchronous lifting" pressure plate structure. Compared to a single-point support pressure plate, this structure can apply a more uniform clamping force to the workpiece, avoiding uneven force on the workpiece caused by pressure plate tilting. The two first mounting seats 31 move synchronously along the first direction Y. The two first connecting seats 33 move synchronously along the third direction Z, ensuring that the first pressure plate 4 maintains a horizontal posture during movement, improving the accuracy and repeatability of the clamping position.

[0064] like Figure 3 As shown, two first mounting seats 31 are connected to the same first driving member 42 via a synchronous belt 41, achieving mechanical synchronous movement of the two first mounting seats 31. The first driving member 42 is used to drive the two first mounting seats 31 to move simultaneously along the first slide rail 3. Compared with the method of using two independent driving members to drive separately, this synchronous belt 41 transmission scheme not only reduces costs and the complexity of the control system, but more importantly, it ensures the absolute synchronicity of the movement of the two first mounting seats 31, avoiding the problem of asynchronous positions of the two mounting seats and the skewness of the first pressure plate 4 caused by electrical control errors. This ensures that the first pressure plate 4 can press the workpiece in the correct posture throughout the entire range of movement, improving the reliability of the fixation.

[0065] Specifically, the length of the first through hole 15 is less than the length of the first abutment edge 13, meaning that the length of the first through hole 15 is controlled within a certain range, so as not to excessively weaken the structural strength of the bearing plate 1. At the same time, it ensures that the movement stroke of the first connecting seat 33 in the first direction Y does not exceed the range of the first abutment edge 13, preventing the pressure plate from moving outside the workpiece positioning area and losing its clamping effect. The first through hole 15 is set away from the second abutment edge 14. This layout allows the first pressure plate 4 to apply clamping force close to the edge of the workpiece when clamping it, because the edge of the workpiece is often the part with the most severe warping deformation. Applying clamping force to the edge can effectively flatten the workpiece and improve the stability of the fixation.

[0066] In this embodiment, the support plate 1 is further provided with a third through hole 16, which has a second length in the second direction X. The vent plate 2 is provided with a fourth through hole 22, which has the same shape as the third through hole 16 and is aligned with the third through hole 16 in the third direction Z. Figure 4 As shown, a third slide rail 5 extending along the second direction X is fixedly installed below the vent plate 2. The third slide rail 5 is slidably connected to a second mounting base 51, and a fourth slide rail 52 extending along the third direction Z is fixedly installed on the second mounting base 51. The fourth slide rail 52 is slidably connected to a second connecting base 53. The second connecting base 53 passes through the third through hole 16 and the fourth through hole 22. A second pressure plate 6 is fixedly connected to the first connecting base 33, and the second pressure plate 6 is located above the bearing surface 12.

[0067] By adding a second pressure plate 6 and its corresponding third through hole 16, fourth through hole 22, third slide rail 5, fourth slide rail 52, second mounting base 51, and second connecting base 53, this solution achieves "double-sided clamping" of the workpiece. The first pressure plate 4 moves along the first direction Y to clamp the edge of the workpiece in the first direction Y; the second pressure plate 6 moves along the second direction X to clamp the edge of the workpiece in the second direction X. The two pressure plates are arranged perpendicularly to each other, which can apply clamping force to the workpiece from two different directions. For rectangular or square workpieces, clamping can be provided on two vertical edges of the four edges, effectively preventing displacement and warping of the workpiece in the horizontal plane, and further improving the stability and reliability of the fixation.

[0068] Specifically, the second length of the third through hole 16 is less than the length of the second abutment edge 14, ensuring that the length of the second through hole 21 does not excessively weaken the structural strength of the bearing plate 1, while ensuring that the movement stroke of the second connecting seat 53 in the second direction X does not exceed the range of the second abutment edge 14. The third through hole 16 is set away from the first abutment edge 13, so that when the second pressure plate 6 clamps the workpiece, it can apply clamping force close to the opposite edge of the workpiece to the first abutment edge 13, forming an "L" or "U" shaped clamping layout with the first pressure plate 4, clamping the edge of the workpiece from two vertical directions, which is especially suitable for application scenarios that require high-precision positioning and stable fixation.

[0069] In this embodiment, the second pressure plate 6 extends along the first direction Y, and its middle position is fixedly connected to the second connecting seat 53, forming a pressure plate structure of "single-point support and two-end cantilever". This design allows the second pressure plate 6 to be made larger in the second direction X, covering a wider clamping range. At the same time, since the support point is located in the middle, the two ends of the pressure plate can be symmetrically clamped, resulting in force balance. Compared with setting the connection point at one end of the pressure plate, the structure with the connection in the middle can avoid the pressure plate generating a deflection torque during clamping, ensuring that the pressure plate and the workpiece surface remain in parallel contact, thus improving the uniformity and stability of clamping.

[0070] Specifically, the length of the second pressure plate 6 is less than the length of the first pressure plate 4. This dimensional relationship is optimized based on the shape characteristics of the workpiece. Typically, the workpiece's dimension in the first direction Y (i.e., workpiece length) is greater than its dimension in the second direction X (i.e., workpiece width). Therefore, the first pressure plate 4, used to press the edge in the length direction, is designed to be longer, while the second pressure plate 6, used to press the edge in the width direction, is designed to be shorter. This effectively covers the pressing area of ​​the workpiece while avoiding material waste and structural redundancy caused by excessively long pressure plates, resulting in a more compact and reasonable overall structure.

[0071] like Figure 3 As shown, the second mounting base 51 is connected to a second driving component 61. The second driving component 61 drives the second mounting base 51 to move simultaneously along the first slide rail 3, realizing automatic position adjustment of the second pressure plate 6 in the second direction X. The driving system is independent of the first pressure plate 4, allowing the two pressure plates to independently adjust their clamping positions according to the actual size and shape of the workpiece without interference. This independent drive design enhances the flexibility of the device. When the workpiece specifications change, the positions of the first pressure plate 4 and the second pressure plate 6 can be adjusted separately without complex linkage control, simplifying the control logic and improving the adaptability of the equipment.

[0072] like Figure 2As shown, the vent plate 2 has multiple mounting holes 24 for fasteners to pass through, thus securing the pressure plate fixing device to a predetermined position (such as a workbench, frame, or base plate of automated equipment). This mounting hole 24 design provides excellent installability and interchangeability for the entire device. Users can quickly fix the device in the desired position using bolts or other fasteners without the need for additional adapter plates or tooling. When maintenance or replacement is required, the entire device can be removed simply by removing the fasteners, making the operation easy. Furthermore, the multiple mounting holes 24 allow users to choose different installation positions and directions based on site space conditions, improving the device's versatility and installation flexibility.

[0073] It should be noted that in the description of this specification, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this specification, unless otherwise stated, "a plurality of" means two or more.

[0074] Any numerical values ​​cited herein include all values ​​ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or the value of a process variable (e.g., temperature, pressure, time, etc.) is described as being from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values ​​less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values ​​listed between the minimum and maximum values ​​are explicitly described in this specification in a similar manner.

[0075] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.

[0076] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.

[0077] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.

[0078] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed utility model subject matter.

Claims

1. A press plate fixing device characterized by comprising: include: A support plate having multiple adsorption holes; the support plate having a support surface, a first abutting edge protruding from the support surface, and a second abutting edge. The first abutting edge extends along a first direction, and the second abutting edge extends along a second direction; the supporting plate is provided with a first through hole, and the first through hole has a first length in a first direction; A vent plate is fixedly installed below the support plate. The vent plate has a second through hole, which has the same shape as the first through hole and is aligned with the first through hole in the third direction. The vent plate has vent holes for connecting to a vacuum device through a pipeline. The first direction, the second direction, and the third direction are perpendicular to each other. A first slide rail is fixedly installed below the vent plate, and the first slide rail extends along a first direction; A first mounting base is slidably connected to the first slide rail, and a second slide rail extending in a third direction is fixedly provided on the first mounting base; a first connecting seat is slidably connected to the second slide rail; the first connecting seat passes through the first through hole and the second through hole. A first pressure plate is fixedly connected to the first connecting seat, and the first pressure plate is located above the bearing surface; the bearing plate is also provided with a third through hole, and the third through hole has a second length in a second direction; the vent plate is provided with a fourth through hole, the fourth through hole has the same shape as the third through hole and is aligned with the third through hole in a third direction; a third slide rail extending in a second direction is also fixedly provided below the vent plate; a second mounting seat is slidably connected to the third slide rail, and a fourth slide rail extending in a third direction is fixedly provided on the second mounting seat; a second connecting seat is slidably connected to the fourth slide rail; the second connecting seat passes through the third through hole and the fourth through hole; a second pressure plate is fixedly connected to the first connecting seat, and the second pressure plate is located above the bearing surface.

2. The platen securing device of claim 1, wherein The length of the first abutting edge is greater than the length of the second abutting edge; there are two first through holes and two second through holes, and the two first through holes are spaced apart in the second direction; the first pressure plate extends along the second direction, and the two ends of the first pressure plate in the second direction are respectively fixedly connected to two first connecting seats; the two first mounting seats move synchronously along the first direction; the two first connecting seats move synchronously along the third direction.

3. The platen securing device of claim 2, wherein, The two first mounting seats are connected to the same first driving member by a timing belt. The first driving member is used to drive the two first mounting seats to move simultaneously along the first slide rail.

4. The platen securing device of claim 2, wherein The first length is less than the length of the first abutting edge; the first through hole is located away from the second abutting edge.

5. The platen securing device of claim 1, wherein The second length is less than the length of the second abutment edge; the third through hole is located away from the first abutment edge.

6. The pressure plate fixing device according to claim 1, characterized in that, The second pressure plate extends along the first direction, and the middle position of the second pressure plate is fixedly connected to the second connecting seat.

7. The pressure plate fixing device according to claim 1, characterized in that, The length of the second pressure plate is less than the length of the first pressure plate.

8. The pressure plate fixing device according to claim 1, characterized in that, The second mounting base is connected to a second driving member, which drives the second mounting base to move along the first slide rail simultaneously.

9. The pressure plate fixing device according to claim 1, characterized in that, The vent plate is provided with multiple mounting holes for fasteners to pass through in order to fix the pressure plate fixing device in a predetermined position.

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