Crossbeam pillar of machine tool, gantry system and PCB drilling machine

Abstract

The application relates to a beam support column of a machine tool, a gantry system and a PCB drilling machine, the beam support column is arranged between a beam and a bed body, the beam support column comprises a first connecting surface matched with the beam and a second connecting surface matched with the bed body; the first connecting surface is provided with a filling cavity, and an adhesive is arranged in the filling cavity and used for fixing the beam support column and the beam; and / or the second connecting surface is provided with a filling cavity, and an adhesive is arranged in the filling cavity and used for fixing the beam support column and the bed body. The application is characterized in that the filling cavities are arranged on the connecting surfaces of the beam support column and the beam and / or on the connecting surfaces of the beam support column and the bed body, and the filling cavities are used for containing the adhesives. The adhesives can increase the connecting strength of the beam support column and the beam and / or the bed body, thereby avoiding micro-slippage between the beam support column and the beam and / or the bed body, and further improving the machining precision of the whole machine. In addition, the adhesives can also increase the damping between the beam support column and the beam and / or the bed body, so as to reduce vibration.

Description

Technical Field

[0001] This application relates to the field of machining equipment technology, and in particular to a machine tool crossbeam support, gantry system and PCB drilling machine. Background Technology

[0002] PCB (Printed Circuit Board) drilling machines are key equipment in modern electronics manufacturing, and their processing accuracy directly determines the quality of through-holes and the reliability of electrical connections in high-density, multilayer PCBs. In existing technologies, the connection between the machine bed, crossbeam support, and crossbeam of a PCB drilling machine is typically a rigid connection. Traditional rigid connections are prone to slight slippage at the connection interfaces, which can affect the overall processing accuracy and even the machine's lifespan. Utility Model Content

[0003] To address the aforementioned problems, this application provides a crossbeam support for a machine tool. By specifically optimizing the structure of the crossbeam support and creating grooves on its surface, filling these grooves with adhesive, and using the adhesive to connect the crossbeam support to the bed and / or crossbeam, the connection strength is increased, preventing slippage between the crossbeam support and the bed and / or crossbeam, thereby improving machining accuracy. Furthermore, this application also provides a gantry system and a PCB drilling machine equipped with this crossbeam support, specifically including the following solutions: In a first aspect, embodiments of this application provide a crossbeam support for a machine tool. The crossbeam support is disposed between the crossbeam and the machine bed. The crossbeam support includes a first connecting surface that conforms to the crossbeam and a second connecting surface that conforms to the machine bed. The first connecting surface has a filling cavity containing adhesive for fixing the crossbeam support and the crossbeam; and / or, The second connecting surface is provided with a filling cavity, and the filling cavity contains adhesive for fixing the crossbeam support and the bed.

[0004] This application incorporates a filling cavity on the connection surface between the crossbeam support and the crossbeam, and / or on the connection surface between the crossbeam support and the bed, to accommodate adhesive. This application uses adhesive to bond the crossbeam support to the crossbeam and / or to the bed. The adhesive increases the connection strength between the crossbeam support and the crossbeam and / or to the bed, thereby preventing slight slippage between the crossbeam support and the crossbeam and / or to the bed, and ultimately improving the overall machining accuracy.

[0005] In one embodiment, at least one side of the filling cavity includes an opening communicating with the outer surface of the filling cavity and the crossbeam support.

[0006] In this embodiment, by providing an opening in the filling cavity and connecting the opening to the outer surface of the crossbeam support, it is beneficial to inject adhesive into the filling cavity through the opening.

[0007] In one embodiment, the filling cavity includes openings on opposite sides along the length of the beam.

[0008] In this embodiment, by providing openings on both sides of the filling cavity and injecting adhesive from different openings, it is beneficial for the adhesive to be evenly distributed in the filling cavity.

[0009] In one embodiment, the filling cavity of the first connecting surface along the vertical direction is received by the orthographic projection of the second connecting surface into the filling cavity of the second connecting surface.

[0010] In one embodiment, the first connecting surface of the crossbeam support includes a mounting hole, and a first fastener of the machine tool passes through the crossbeam in a vertical direction and extends into the mounting hole of the crossbeam support to limit the displacement between the crossbeam support and the crossbeam.

[0011] In this embodiment, by providing mounting holes on the first connecting surface and using a first fastener to penetrate the crossbeam and extend into the mounting holes, the displacement between the crossbeam support and the crossbeam is limited, ensuring the reliability of the connection between the crossbeam support and the crossbeam. The composite connection method of the first fastener and the adhesive in the filling cavity can ensure the connection stiffness between the crossbeam support and the crossbeam while also increasing the damping between the crossbeam support and the crossbeam, achieving a shock absorption and energy dissipation effect.

[0012] In one embodiment, the second connecting surface of the crossbeam support includes a through hole, and the second fastener of the machine tool passes through the through hole of the crossbeam support in a vertical direction and extends into the bed to limit the displacement between the crossbeam support and the bed.

[0013] In this embodiment, by providing a through hole on the second connecting surface and using a second fastener to penetrate the through hole and extend into the bed, the displacement between the crossbeam support and the bed is limited, ensuring the reliability of the connection between the crossbeam support and the bed. The composite connection method of the second fastener and the adhesive in the filling cavity can ensure the connection stiffness between the crossbeam support and the bed, while also increasing the damping between the crossbeam support and the bed, achieving a shock absorption and energy absorption effect.

[0014] In one embodiment, there are multiple mounting holes and multiple through holes. The mounting holes are arranged on both sides of the filling cavity of the first connecting surface along the length direction of the crossbeam, and the multiple through holes are arranged on both sides of the filling cavity of the second connecting surface along the length direction of the crossbeam.

[0015] In this embodiment, by providing multiple mounting holes, through holes, first fasteners, and second fasteners, the multiple mounting holes and multiple first fasteners working together can improve the connection performance between the crossbeam support and the crossbeam; the multiple through holes and multiple second fasteners working together can improve the connection performance between the crossbeam support and the bed. By arranging multiple mounting holes along the length direction of the crossbeam on both sides of the filling cavity of the first connecting surface, and multiple through holes along the length direction of the crossbeam on both sides of the filling cavity of the second connecting surface, the crossbeam support can be subjected to uniform force, preventing stress concentration on one side and improving the overall connection strength.

[0016] In one embodiment, along the length of the beam, a portion of through holes, a portion of mounting holes, another portion of mounting holes, and another portion of through holes are arranged in sequence.

[0017] In this embodiment, optimizing the distribution of through holes and mounting holes helps to further improve the connection rigidity between the crossbeam support and the crossbeam, and between the crossbeam support and the bed.

[0018] In one embodiment, the distance between any mounting hole and the filling cavity of the first connecting surface is greater than or equal to 30 mm along the length of the beam.

[0019] In this embodiment, by setting the distance between the mounting hole and the filling cavity of the first connecting surface to be greater than or equal to 30mm along the length of the crossbeam, it is possible to ensure that sufficient adhesive can be filled into the filling cavity of the first connecting surface while also preventing stress concentration.

[0020] In one embodiment, the distance between any through hole and the filling cavity of the second connecting surface is greater than or equal to 30 mm along the length of the beam.

[0021] In this embodiment, by setting the distance between the through hole and the filling cavity of the second connecting surface to be greater than or equal to 30mm along the length of the crossbeam, it is possible to ensure that the filling cavity of the second connecting surface can be filled with sufficient adhesive while preventing stress concentration.

[0022] In one embodiment, the height of the filling cavity in the vertical direction ranges from 0.05 mm to 0.2 mm.

[0023] In this embodiment, the height of the filling cavity is set to be between 0.05mm and 0.2mm, which helps to ensure the thickness of the adhesive, thereby ensuring that the adhesive can effectively connect the crossbeam support to the crossbeam and / or effectively connect the crossbeam support to the bed, avoiding slight slippage at the connection.

[0024] In one embodiment, the adhesive includes a structural adhesive.

[0025] In this embodiment, based on the high modulus and high strength properties of structural adhesive, using structural adhesive to bond crossbeam supports to crossbeams and / or crossbeam supports to the bed facilitates the formation of a robust and continuous connection at the joint surfaces, ensuring connection strength and structural integrity. Furthermore, structural adhesive possesses excellent fatigue resistance, and its use helps to improve the overall service life and reliability of the machine.

[0026] In one embodiment, the adhesive comprises an epoxy resin.

[0027] In this embodiment, since epoxy resin has superior bonding strength, modulus and hardness after curing, it can form a rigid connection between the crossbeam support and the crossbeam and / or the connection between the crossbeam support and the bed, which can efficiently transmit load and vibration and ensure overall rigidity.

[0028] Secondly, this application provides a gantry system, which includes a crossbeam, a bed, and at least two crossbeam supports as described in any of the above embodiments, wherein the at least two crossbeam supports are spaced apart from the bed, and the crossbeam is mounted on the at least two crossbeam supports.

[0029] It is understood that the gantry system of the second aspect of this application, because it adopts the beam support provided in the first aspect of this application, also has all the beneficial effects that can be obtained in any embodiment provided in the first aspect of this application.

[0030] Thirdly, this application provides a PCB drilling machine, which includes a stage, a spindle, and a gantry system as described in any of the above embodiments, wherein the stage is supported on the bed of the gantry system, at least two crossbeams are arranged on both sides of the stage, and the spindle is mounted on the crossbeams for drilling the workpiece carried on the stage.

[0031] It is understood that the PCB drilling machine of the third aspect of this application, because it adopts the gantry system provided in the second aspect of this application, also has all the beneficial effects that can be obtained in any embodiment provided in the second aspect of this application. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the PCB drilling machine provided in one embodiment of this application; Figure 2 This is a schematic diagram of the structure of a machine tool provided in one embodiment of this application; Figure 3 This is a structural schematic diagram of one side of the crossbeam support provided in one embodiment of this application; Figure 4 This is a structural schematic diagram of the crossbeam support provided in one embodiment of this application from another side view. Figure 5 This is a schematic cross-sectional view of the machine tool provided in one embodiment of this application; Figure 6 for Figure 5 A schematic diagram of the local structure at point A in the middle; Figure 7 This is a structural schematic diagram of the crossbeam support provided in one embodiment of this application, viewed from the other side.

[0034] Reference numerals: 200-PCB drilling machine; 201-machine tool; 2011-bed; 2012-stage; 2013-crossbeam; 202-spindle; 203-first fastener; 204-second fastener; 100-crossbeam support; 10-first connecting surface; 20-second connecting surface; 30-filling cavity; 31-first filling cavity; 32-second filling cavity; 40-adhesive; 50-mounting hole; 51-first mounting hole; 52-second mounting hole; 60-through hole; 61-first through hole; 62-second through hole; 001-first direction; 002-second direction. Detailed Implementation

[0035] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0036] The following descriptions of the embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments in which this application can be implemented. The component designations used herein, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages). Directional terms used in this application, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "side," etc., are merely for reference to the accompanying illustrations. Therefore, the use of directional terms is for better and clearer explanation and understanding of this application, and does not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this application.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising," "may include," "include," or "may include" used in this application indicate the presence of the corresponding disclosed function, operation, element, etc., and do not limit one or more other functions, operations, elements, etc. Moreover, the terms "comprising" or "include" indicate the presence of the corresponding features, number, steps, operations, elements, components, or combinations thereof disclosed in the specification, but do not exclude the presence or addition of one or more other features, number, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusion.

[0038] 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 application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0039] Please refer to the above. Figure 1 and Figure 2 ,in Figure 1 This is a schematic diagram of the structure of a PCB drilling machine 200 provided in one embodiment of this application; Figure 2 This is a schematic diagram of the structure of a machine tool 201 provided in one embodiment of this application.

[0040] like Figure 1 and Figure 2 As shown, the PCB drilling machine 200 provided in this application includes a machine tool 201 and a spindle 202. The machine tool 201 includes a bed 2011, a stage 2012, a crossbeam 2013, and at least two crossbeam supports 100. The stage 2012 and the crossbeam supports 100 are respectively supported on the bed 2011. The stage 2012 is disposed on the bed 2011 and is used to carry the workpiece. At least two crossbeam supports 100 are also disposed on the bed 2011, and are spaced apart along a first direction 001 on both sides of the stage 2012. The crossbeam 2013 is supported by the at least two crossbeam supports 100 along a second direction 002, and the crossbeam supports 100 and the crossbeam 2013 together form a gantry frame. That is, the crossbeam supports 100 are located between the bed 2011 and the crossbeam 2013.

[0041] Alternatively, the PCB drilling machine 200 provided in this application can be understood as including a gantry system, a stage 2012, and a spindle 202. The gantry system includes a crossbeam 2013, a bed 2011, and at least two crossbeam supports 100. The at least two crossbeam supports 100 are spaced apart from the bed 2011, and the crossbeam 2013 is mounted on the at least two crossbeam supports 100. The stage 2012 is supported on the bed 2011 of the gantry system, and the at least two crossbeam supports 100 are located on either side of the stage 2012. The spindle 202 is mounted on the crossbeam 2013 and is used to drill holes in the workpiece supported on the stage 2012. The first direction 001 is the length direction of the crossbeam, and the second direction 002 is the vertical direction; the first direction 001 and the second direction 002 are perpendicular.

[0042] For example, there are three crossbeam supports 100, which are arranged at intervals along the first direction 001. A platform 2012 is provided between every two crossbeam supports 100. The length direction of the crossbeam 2013 is parallel to the first direction 001. Each end of the crossbeam 2013 is supported by a crossbeam support 100. The number of crossbeam supports 100 includes, but is not limited to, three, and this application does not make any special limitation in this regard.

[0043] Please refer to the above. Figures 3 to 6 ,in Figure 3 This is a structural schematic diagram of one side of the crossbeam support 100 provided in one embodiment of this application; Figure 4 This is a structural schematic diagram of the crossbeam support 100 provided in one embodiment of this application from another side view. Figure 5 This is a schematic cross-sectional view of the machine tool 201 provided in one embodiment of this application; Figure 6 for Figure 5 A schematic diagram of the local structure at point A in the middle.

[0044] like Figures 3 to 6 As shown, the crossbeam support 100 provided in this application includes a first connecting surface 10, a second connecting surface 20, and a filling cavity 30. The first connecting surface 10 is located on the upper surface of the crossbeam support 100 and is used to fit against the crossbeam 2013. The second connecting surface 20 is located on the lower surface of the crossbeam support 100 and is used to fit against the bed 2011. Both the first connecting surface 10 and the second connecting surface 20 are provided with a filling cavity 30. For ease of explanation, the filling cavity 30 on the first connecting surface 10 will be defined as the first filling cavity 31, and the filling cavity 30 on the second connecting surface 20 will be defined as the second filling cavity 32.

[0045] The first filling cavity 31 is recessed vertically in a direction away from the crossbeam 2013, that is, in a direction away from the crossbeam 2013 along the second direction 002. An adhesive 40 is provided inside the first filling cavity 31 for fixing the crossbeam support 100 and the crossbeam 2013. The second filling cavity 32 is recessed vertically in a direction away from the bed frame 2011, that is, in a direction away from the bed frame 2011 along the second direction 002. An adhesive 40 is provided inside the filling cavity 30 of the second connecting surface 20 for fixing the crossbeam support 100 and the bed frame 2011.

[0046] It should be noted that the position of the filling cavity 30 in the above embodiments is only an example. In another embodiment, the filling cavity 30 may be provided only on the first connecting surface 10 or only on the second connecting surface 20. This application does not make any special limitation on this.

[0047] This application provides a filling cavity 30 on the connection surface between the crossbeam support 100 and the crossbeam 2013 and / or on the connection surface between the crossbeam support 100 and the bed 2011, using the filling cavity 30 to contain adhesive 40. The adhesive 40 bonds the crossbeam support 100 to the crossbeam 2013 and / or to the bed 2011, increasing the connection strength between the crossbeam support 100 and the crossbeam 2013 and / or to the bed 2011, thereby preventing slight slippage between them and improving the overall machining accuracy. Furthermore, the adhesive 40 also increases the damping between the crossbeam support 100 and the crossbeam 2013 and / or to the bed 2011, reducing vibration.

[0048] In one embodiment, at least one side of the filling cavity 30 includes an opening that connects the filling cavity 30 and the outer surface of the beam support 100. Exemplarily, along the first direction 001, one side of the first filling cavity 31 includes an opening that connects the first filling cavity 31 and the outer surface of the beam support 100. That is, the first filling cavity 31 is a semi-closed structure.

[0049] In this embodiment, by providing an opening in the filling cavity 30 and connecting the filling cavity 30 with the outer surface of the crossbeam support 100, it is advantageous to inject adhesive 40 into the filling cavity 30 through the opening.

[0050] It should be noted that the location and number of openings in the above embodiments are merely illustrative examples. For instance, in another embodiment, openings are included on both opposite sides of the filling cavity 30 along the length of the crossbeam 2013.

[0051] In this embodiment, by providing openings on both sides of the filling cavity 30 along the first direction 001, it is convenient to inject adhesive 40 from different openings, which helps the adhesive 40 to be evenly distributed in the filling cavity 30.

[0052] In one embodiment, the orthographic projection of the filling cavity 30 of the first connecting surface 10 along the vertical direction onto the second connecting surface 20 is received within the filling cavity 30 of the second connecting surface 20. That is, along the second direction 002, the orthographic projection of the first filling cavity 31 onto the second connecting surface 20 is received within the second filling cavity 32. Alternatively, it can be understood that the area occupied by the second filling cavity 32 on the second connecting surface 20 is relatively larger than the area occupied by the first filling cavity 31 on the first connecting surface 10.

[0053] Please refer to the above. Figure 7 , Figure 7 This is a structural schematic diagram of the crossbeam support 100 provided in one embodiment of this application from another side.

[0054] like Figures 3 to 7 As shown, in one embodiment, the crossbeam support 100 includes a mounting hole 50 located on the first connecting surface 10 and extending vertically. The machine tool 201 includes a first fastener 203 that passes vertically through the crossbeam 2013 and extends into the mounting hole 50 of the crossbeam support 100 to limit displacement between the crossbeam support 100 and the crossbeam 2013.

[0055] In this embodiment, by providing a mounting hole 50 on the first connecting surface 10, and using a first fastener 203 to penetrate the crossbeam 2013 and extend into the mounting hole 50, the displacement between the crossbeam support 100 and the crossbeam 2013 is limited, ensuring the reliability of the connection between the crossbeam support 100 and the crossbeam 2013. The composite connection method of the first fastener 203 and the adhesive 40 in the filling cavity 30 can ensure the connection stiffness between the crossbeam support 100 and the crossbeam 2013, while also increasing the damping between the crossbeam support 100 and the crossbeam 2013, achieving a shock absorption and energy absorption effect.

[0056] In one embodiment, the crossbeam support 100 includes a through hole 60 located on the second connecting surface 20 and extending vertically through the crossbeam support 100. The machine tool 201 includes a second fastener 204 that extends vertically through the through hole 60 of the crossbeam support 100 and into the bed 2011 to limit displacement between the crossbeam support 100 and the bed 2011.

[0057] In this embodiment, by providing a through hole 60 on the second connecting surface 20, and using a second fastener 204 to penetrate the through hole 60 and extend into the bed 2011, the displacement between the crossbeam support 100 and the bed 2011 is limited, ensuring the reliability of the connection between the crossbeam support 100 and the bed 2011. The composite connection method of the second fastener 204 and the adhesive 40 in the filling cavity 30 can ensure the connection stiffness between the crossbeam support 100 and the bed 2011, while also increasing the damping between the crossbeam support 100 and the bed 2011, achieving a shock absorption and energy absorption effect.

[0058] In one embodiment, there are multiple mounting holes 50 and multiple through holes 60. The multiple mounting holes 50 are arranged on both sides of the first filling cavity 31 of the first connecting surface 10 along the length direction of the crossbeam 2013, and the multiple through holes 60 are arranged on both sides of the second filling cavity 32 of the second connecting surface 20 along the length direction of the crossbeam 2013.

[0059] In this embodiment, by providing multiple mounting holes 50, through holes 60, first fasteners 203, and second fasteners 204, the multiple mounting holes 50 and the multiple first fasteners 203 work together to improve the connection performance between the crossbeam support 100 and the crossbeam 2013; the multiple through holes 60 and the multiple second fasteners 204 work together to improve the connection performance between the crossbeam support 100 and the bed 2011. By arranging multiple mounting holes 50 along the length direction of the crossbeam 2013 on both sides of the first filling cavity 31, and multiple through holes 60 along the length direction of the crossbeam 2013 on both sides of the second filling cavity 32, the crossbeam support 100 can be subjected to uniform force, preventing stress concentration on one side and improving the overall connection strength.

[0060] In one embodiment, along the length of the crossbeam 2013, a portion of the through holes 60, a portion of the mounting holes 50, another portion of the mounting holes 50, and another portion of the through holes 60 are arranged sequentially. For ease of explanation, a portion of the through holes 60 is defined as the first through hole 61, and the other portion of the through holes 60 is defined as the second through hole 62; a portion of the mounting holes 50 is defined as the first mounting hole 51, and the other portion of the mounting holes 50 is defined as the second mounting hole 52. Along the first direction 001, the first through hole 61, the first mounting hole 51, the second mounting hole 52, and the second through hole 62 are arranged sequentially.

[0061] In this embodiment, by optimizing the distribution of the through holes 60 and the mounting holes 50, it is beneficial to further improve the connection rigidity between the crossbeam support 100 and the crossbeam 2013, and between the crossbeam support 100 and the bed 2011.

[0062] In one embodiment, along the length of the crossbeam 2013, the distance between any mounting hole 50 and the first filling cavity 31 of the first connecting surface 10 is greater than or equal to 30 mm.

[0063] In this embodiment, by setting the distance between the mounting hole 50 and the first filling cavity 31 of the first connecting surface 10 to be greater than or equal to 30mm along the length of the crossbeam 2013, it is possible to ensure that sufficient adhesive 40 can be filled in the first filling cavity 31 of the first connecting surface 10, while also preventing stress concentration.

[0064] In one embodiment, along the length of the crossbeam 2013, the distance between any through hole 60 and the second filling cavity 32 of the second connecting surface 20 is greater than or equal to 30 mm.

[0065] In this embodiment, by setting the distance between the through hole 60 and the second filling cavity 32 of the second connecting surface 20 to be greater than or equal to 30 mm along the length of the crossbeam 2013, it is possible to ensure that sufficient adhesive 40 can be filled in the second filling cavity 32 of the second connecting surface 20, while also preventing stress concentration.

[0066] In one embodiment, the height of the filling cavity 30 in the vertical direction ranges from 0.05 mm to 0.2 mm.

[0067] In this embodiment, the height of the filling cavity 30 is set to be between 0.05mm and 0.2mm, which helps to ensure the thickness of the adhesive 40, thereby ensuring that the adhesive 40 can effectively connect the crossbeam support 100 and the crossbeam 2013 and / or effectively connect the crossbeam support 100 and the bed 2011, avoiding slight slippage at the connection.

[0068] In one embodiment, adhesive 40 comprises structural adhesive.

[0069] In this embodiment, based on the high modulus and high strength characteristics of structural adhesive, using structural adhesive to bond the crossbeam support 100 to the crossbeam 2013 and / or to the bed 2011 facilitates the formation of a robust and continuous connection at the joint surfaces, ensuring connection strength and structural integrity. Furthermore, structural adhesive possesses excellent fatigue resistance, and its use helps improve the overall service life and reliability of the machine.

[0070] In one embodiment, adhesive 40 comprises epoxy resin.

[0071] In this embodiment, since epoxy resin has superior bonding strength, modulus and hardness after curing, it can form a rigid connection between the crossbeam support 100 and the crossbeam 2013 and / or the connection between the crossbeam support 100 and the bed 2011, which can efficiently transmit load and vibration and ensure overall rigidity.

[0072] It should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims. Those skilled in the art will understand that implementing all or part of the processes of the above embodiments, and making equivalent changes according to the claims of this application, still falls within the scope of this application.

Claims

1. A crossbeam support for a machine tool, disposed between the crossbeam and the bed, characterized in that, The crossbeam support includes a first connecting surface that fits against the crossbeam, and a second connecting surface that fits against the bed frame; the first connecting surface has a filling cavity containing adhesive for fixing the crossbeam support and the crossbeam; and / or, The second connecting surface is provided with a filling cavity, and the filling cavity is provided with adhesive for fixing the crossbeam support and the bed.

2. The crossbeam support of the machine tool according to claim 1, characterized in that, At least one side of the filling cavity includes an opening that communicates with the outer surface of the filling cavity and the crossbeam support.

3. The crossbeam support of the machine tool according to claim 2, characterized in that, Along the length of the crossbeam, the openings are located on opposite sides of the filling cavity.

4. The crossbeam support of the machine tool according to claim 1, characterized in that, The orthographic projection of the filling cavity of the first connecting surface along the vertical direction onto the second connecting surface is contained within the filling cavity of the second connecting surface.

5. The crossbeam support of the machine tool according to claim 1, characterized in that, The first connecting surface of the crossbeam support includes a mounting hole, and the first fastener of the machine tool passes through the crossbeam in a vertical direction and extends into the mounting hole of the crossbeam support to limit the displacement between the crossbeam support and the crossbeam.

6. The crossbeam support of the machine tool according to claim 5, characterized in that, The second connecting surface of the crossbeam support includes a through hole, and the second fastener of the machine tool passes through the through hole of the crossbeam support in a vertical direction and extends into the bed to limit the displacement between the crossbeam support and the bed.

7. The crossbeam support of the machine tool according to claim 6, characterized in that, The number of mounting holes and through holes are both multiple. The multiple mounting holes are arranged on both sides of the filling cavity of the first connecting surface along the length direction of the crossbeam, and the multiple through holes are arranged on both sides of the filling cavity of the second connecting surface along the length direction of the crossbeam.

8. The crossbeam support of the machine tool according to claim 7, characterized in that, Along the length of the crossbeam, the distance between any of the mounting holes and the filling cavity of the first connecting surface is greater than or equal to 30 mm; and / or, Along the length of the crossbeam, the distance between any of the through holes and the filling cavity of the second connecting surface is greater than or equal to 30 mm.

9. A gantry system, characterized in that, It includes a crossbeam, a bed frame, and at least two crossbeam supports as described in any one of claims 1-8, wherein the at least two crossbeam supports are spaced apart from each other on the bed frame, and the crossbeam is supported on the at least two crossbeam supports.

10. A PCB drilling machine, characterized in that, The system includes a stage, a spindle, and a gantry system as described in claim 9. The stage is supported on the bed of the gantry system, and at least two crossbeam supports are arranged on both sides of the stage. The spindle is mounted on the crossbeams and is used to drill holes in the workpiece supported on the stage.

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