A cross member

Abstract

The present application relates to a kind of beams, the beam body is provided with the rib group for supporting beam body, the right side of the heat dissipation assembly is provided with the belt pulley one for driving heat dissipation assembly rotation, the support assembly is provided with the cleaning assembly for cleaning beam body, the support assembly is provided with the adjusting assembly for driving cleaning assembly to move left and right reciprocating;Beam body of the present application is through canceling support connection, optimizing side lightening hole and adopting internal mi character rib structure, while the deformation is controlled within 0.02-0.03mm, significant weight reduction is realized.Integrated with heat dissipation and automatic cleaning device: motor can drive a bidirectional reciprocating screw rod;The screw rod drives the threaded sleeve plate equipped with cleaning plate, makes it along the continuous automatic reversing reciprocating motion of rear side of beam, thereby continuously removing accumulated chips and dust, effectively keep equipment clean;Meanwhile, through belt linkage drive heat dissipation fan for beam cooling.

Description

Technical Field

[0001] This invention relates to the field of machine tool structural components, specifically a crossbeam. Background Technology

[0002] In the beam structure of machine tools and other equipment, the beam typically consists of a beam body and supports. The front side of the beam body serves as the mounting surface for assembling sliders, slide rails, and connecting the spindle box. The other sides often have openings to reduce weight. The supports are installed on the bottom surface of the beam body. The core requirement for beams in the industry is to minimize their weight while ensuring structural rigidity and controlling deformation within a reasonable range, thereby improving the operational flexibility and energy efficiency of the equipment. In current technology, the machine tool crossbeam is affected by heat during operation. On the one hand, the crossbeam will deform due to thermal expansion, which will damage the machining accuracy of the machine tool and affect the machining quality of the workpiece. On the other hand, it will change the clearance between the crossbeam and the slide saddle, affecting the motion accuracy of the machine tool and even interfering with the normal operation of the machine tool.

[0003] However, traditional cast iron beams have high thermal conductivity and are sensitive to short-term changes in ambient temperature. They are prone to temperature changes due to heat, which in turn causes deformation, making it difficult to maintain stable geometric accuracy during long-term operation. At the same time, existing high-strength beam structures consume a lot of steel and have limited improvement effects. Therefore, a new type of beam is proposed to address the above problems. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a crossbeam, comprising a base, characterized in that: a crossbeam body for mounting on a machine tool is fixedly installed at the top of the base; a heat dissipation device for dissipating heat from the crossbeam body is provided on the right side of the crossbeam body; a cleaning device for cleaning the crossbeam body is provided on the rear side of the base, and the heat dissipation device is connected to the cleaning device; a mounting surface is provided on the front side of the crossbeam body; a rib group for supporting the crossbeam body is provided within the crossbeam body; the heat dissipation device includes a heat dissipation component provided on the right side of the crossbeam body for dissipating heat from the crossbeam body; a pulley for driving the heat dissipation component to rotate is provided on the right side of the heat dissipation component; the cleaning device includes a support component fixedly installed at the rear end of the crossbeam body; a cleaning component for cleaning the crossbeam body is provided within the support component; and an adjustment component for driving the cleaning component to move left and right reciprocally is provided within the support component.

[0005] Preferably, the crossbeam body adopts a high-strength aluminum alloy honeycomb structure, which is lightweight and has strong bending resistance.

[0006] Preferably, a lead screw nut seat for connecting with the machine tool lead screw is fixedly installed on the mounting surface, and there are two lead screw nut seats, which are symmetrically distributed on the mounting surface.

[0007] Preferably, there are several groups of reinforcing bars, and these groups of reinforcing bars are arranged horizontally in a star pattern within the beam body.

[0008] Preferably, a slide rail one for moving the machine tool slide is fixedly installed on the mounting surface, and a slide rail two is fixedly installed on the top of the crossbeam body.

[0009] Preferably, the top end of the beam body is provided with through holes for reducing the weight of the beam body, and there are several through holes, which are distributed in a linear array at the top end of the beam body.

[0010] Preferably, the heat dissipation assembly includes a rotating shaft located at the right end of the crossbeam body for rotation, and the rotating shaft is connected to a pulley. A cooling fan for dissipating heat from the crossbeam body is fixedly installed on the shaft of the rotating shaft.

[0011] Preferably, the support assembly includes a support frame fixedly installed at the rear end of the crossbeam body, and a support frame for placing the adjustment assembly is fixedly installed at the rear end of the support frame.

[0012] Preferably, the adjustment assembly includes a bidirectional reciprocating threaded rod disposed within the support frame for driving the cleaning assembly to move back and forth. The rod body of the bidirectional reciprocating threaded rod is fixedly mounted with a second pulley for connecting to a first pulley via a belt. The right end of the bidirectional reciprocating threaded rod is fixedly mounted with a motor for driving the bidirectional reciprocating threaded rod to rotate.

[0013] Preferably, the cleaning assembly includes a threaded sleeve plate disposed within the support frame for threaded connection with a bidirectional reciprocating threaded rod, and a cleaning plate for cleaning the crossbeam body is fixedly installed at the front end of the threaded sleeve plate.

[0014] The advantages of this invention are: This invention achieves significant weight reduction by eliminating the connection structure between supports, optimizing the weight-reducing openings on the side of the beam, and using an internal cross-shaped reinforcement structure. While meeting the deformation requirement of 0.02-0.03mm, the beam also transmits power from the motor to a bidirectional reciprocating threaded rod, causing it to rotate synchronously. Due to the special design of the threads on the bidirectional reciprocating threaded rod, when it rotates, the mating threaded sleeve drives the cleaning plate at its front end to perform continuous, automatically reversing left-right reciprocating motion along the rear side of the beam body. This achieves a balance between structural rigidity and lightweight requirements, as well as efficient cleaning. During its reciprocating motion, the sweeping plate continuously cleans the chips, dust, and other debris adhering to or falling from the rear side of the crossbeam, maintaining its cleanliness. Simultaneously, it directly drives the rotating shaft and cooling fan to rotate via pulley one, the transmission belt, and pulley two, performing the heat dissipation task. The rotating shaft solves the problems of traditional cast iron crossbeams having high thermal conductivity, being sensitive to short-term environmental temperature changes, easily deforming due to heat, and being unable to maintain stable geometric accuracy during long-term operation. At the same time, it addresses the issues of existing high-strength crossbeam structures consuming a large amount of steel and having limited improvement effects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the crossbeam body structure of the present invention; Figure 3 This is a cross-sectional view of the beam body of the present invention; Figure 4 This is a diagram showing the assembly of the heat dissipation device and the cleaning device of the present invention; Figure 5 This is a schematic diagram of the cleaning component structure of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 For the present invention Figure 5 Enlarged view of section B in the middle.

[0016] In the diagram: 100, base; 200, crossbeam body; 201, slide rail one; 202, slide rail two; 203, lead screw nut seat; 204, through hole; 205, mounting surface; 206, rib assembly; 300, heat dissipation device; 310, pulley one; 320, heat dissipation component; 321, rotating shaft; 322, cooling fan; 400, cleaning device; 410, support component; 411, support frame; 412, support bracket; 420, adjustment component; 421, bidirectional reciprocating threaded rod; 422, pulley two; 423, motor; 430, cleaning component; 431, threaded sleeve plate; 432, cleaning plate. Detailed Implementation

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0018] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail. This application discloses a crossbeam, including a base 100. A crossbeam body 200 for mounting on a machine tool is fixedly installed on the top of the base 100. A heat dissipation device 300 for dissipating heat from the crossbeam body 200 is provided on the right side of the crossbeam body 200. A cleaning device 400 for cleaning the crossbeam body 200 is provided on the rear side of the base 100, and the heat dissipation device 300 is connected to the cleaning device 400. A mounting surface 205 is provided on the front side of the crossbeam body 200. Ribs for supporting the crossbeam body 200 are provided inside the crossbeam body 200. Group 206, heat dissipation device 300 includes heat dissipation component 320 disposed on the right side of crossbeam body 200 for heat dissipation of crossbeam body 200, and pulley 310 disposed on the right side of heat dissipation component 320 for driving heat dissipation component 320 to rotate. Cleaning device 400 includes support component 410 fixedly installed at the rear end of crossbeam body 200, cleaning component 430 disposed in support component 410 for cleaning crossbeam body 200, and adjustment component 420 disposed in support component 410 for driving cleaning component 430 to move left and right reciprocatingly.

[0019] Reference Figure 2 and Figure 3 The crossbeam body 200 is made of high-strength aluminum alloy and is designed as a hollow honeycomb box structure. This structure ensures excellent bending and torsional stiffness while achieving significant weight reduction.

[0020] On the front side of the crossbeam body 200, a longitudinal mounting surface 205 is precisely machined; on the mounting surface 205, two high-precision slide rails 201 are fixedly installed in parallel to guide the machine tool slide (not shown in the figure) and its spindle box and other components to move smoothly along the length of the crossbeam.

[0021] A lead screw nut seat 203 for connecting with the machine tool lead screw is fixedly installed on the mounting surface 205. There are two lead screw nut seats 203, which are symmetrically distributed on the mounting surface 205. The lead screw nut seats 203 are used to connect with the machine tool drive lead screw to convert the rotary motion into the precise linear feed of the slide. On the top side of the crossbeam body 200, a slide rail 202 is also fixedly installed, which can be used to install auxiliary devices or a second slide.

[0022] To further reduce weight, multiple through holes 204 are also provided on the top side of the crossbeam body 200. These through holes 204 are evenly distributed in a linear array along the length of the crossbeam.

[0023] Within the internal cavity of the beam body 200, multiple rib groups 206 are spaced apart along its length. On the transverse section perpendicular to the mounting surface 205, each rib group 206 has internal reinforcing ribs arranged in a star-shaped pattern, providing efficient and robust support for the core load-bearing area. By eliminating the connection structure between the bases 100, optimizing the weight-reducing openings on the side of the beam body 200, and adopting an internal star-shaped reinforcing structure, the beam achieves significant weight reduction while meeting the 0.02-0.03mm deformation requirement, thus balancing structural rigidity and lightweight requirements.

[0024] Reference Figure 4 , Figure 5 and Figure 6 The motor 310 is fixedly installed on the right end of the crossbeam body 200; the heat dissipation assembly 320 includes a rotating shaft 321 located at the right end of the crossbeam body 200 for rotation, and the rotating shaft 321 is connected to a pulley 310. A cooling fan 322 for dissipating heat from the crossbeam body 200 is fixedly installed on the shaft of the rotating shaft 321. When working, the rotation of the rotating shaft 321 can drive the cooling fan 322 to rotate at high speed, and the airflow generated blows towards the side and internal cavity of the crossbeam body 200 for forced air cooling; thus achieving heat dissipation of the crossbeam body 200; in order to achieve power sharing, a pulley 310 is also coaxially fixedly installed on the shaft of the rotating shaft 321 and on one side of the cooling fan 322, so as to facilitate synchronously driving the cleaning device 400 to clean the dust on the crossbeam body 200.

[0025] Reference Figure 4 , Figure 5 and Figure 7 The support assembly 410 includes a support frame 412 fixedly installed at the rear end of the crossbeam body 200. A support frame 411 for placing the adjustment assembly 420 is fixedly installed at the rear end of the support frame 412. During operation, the support frame 412 is fixedly installed on the rear side of the crossbeam body 200, and the support frame 411 is fixedly connected to the rear end of the support frame 412, forming a stable installation platform.

[0026] The adjustment assembly 420 includes a bidirectional reciprocating threaded rod 421 disposed within the support frame 411 for driving the cleaning assembly 430 to reciprocate left and right. The right end of the bidirectional reciprocating threaded rod 421 extends out of the support frame 411 and a pulley 422 is fixedly installed at its end. The body of the bidirectional reciprocating threaded rod 421 is fixedly installed with the pulley 422 for connecting to the pulley 310 via a belt. A motor 423 for driving the bidirectional reciprocating threaded rod 421 to rotate is fixedly installed at the right end of the bidirectional reciprocating threaded rod 421.

[0027] The cleaning component 430 includes a threaded sleeve plate 431 disposed within the support frame 411 and threadedly connected to the bidirectional reciprocating threaded rod 421. The threaded sleeve plate 431 has a threaded hole matching the bidirectional reciprocating threaded rod 421; the threaded sleeve plate 431 is sleeved on the bidirectional reciprocating threaded rod 421 through this threaded hole; a cleaning plate 432 for cleaning the beam body 200 is fixedly installed at the front end of the threaded sleeve plate 431; a brush may be provided on the cleaning plate 432, and its cleaning surface remains in contact with the rear side of the beam body 200; during operation, under the belt connection between the first pulley 310 and the second pulley 422, the bidirectional reciprocating threaded rod 421 can synchronously rotate following the rotation shaft 321, so that the threaded sleeve plate 431 can move left and right along the bidirectional reciprocating threaded rod 421, and at the same time, the brush on the cleaning plate 432 is used to clean the top side and the rear side of the beam body 200 to prevent impurities from accumulating at the top of the beam body 200 and causing the through hole 204 to be blocked.

[0028] Working principle: In the internal cavity of the beam body 200, a set of rib groups 206 are arranged at regular intervals along its length direction; as Figure 3 shown in the cross-sectional view, for each rib group 206 perpendicular to the internal cavity of the beam body 200, its rib plates are distributed in a "rice" shape, that is, there is an intersection point in the center and radiate outward to connect to the inner wall of the beam body 200, forming a high-strength network support; therefore, when the spindle box moves on the beam body 200 and performs cutting operations, the main load acts on the front side; the dense internal "rice" rib structure can effectively disperse the load and transfer it to the entire beam cross-section and supports, strictly restraining the deformation of the mounting surface 205 under force within the range of 0.02 - 0.03 mm; at the same time, the large-area weight-reducing holes on the side and the simplified support design make the overall weight of the beam body 200 significantly lower than that of the traditional structure.

[0029] At the same time, when the machine tool needs to operate the heat dissipation or cleaning function, the working process of this integrated system starts with the startup of the motor 423; after the control system issues an instruction, the output shaft of the motor 423 starts to rotate, and its power can be directly transmitted to the rotation shaft 321 rigidly connected thereto through the belt connection between the first pulley 310 and the second pulley 422. The rotation of the rotation shaft 321 drives the radiator fan 322 fixedly installed on its shaft body to rotate at a high speed. The directional airflow generated by the radiator fan 322 continuously blows the side and the internal structure cavity of the beam body 200, effectively forcing the convection and exhausting the heat generated during the processing process, thereby performing the core heat dissipation task and ensuring that the temperature rise of the beam is controlled during long-term and high-load operation, maintaining the stability of its structural rigidity and geometric accuracy.

[0030] It can also drive the rotation of the bidirectional reciprocating threaded rod 421; this belt drive mechanism forms a power bridge connecting heat dissipation and cleaning functions; enabling a single motor 423 to synchronously drive two sets of actuators, reflecting the integration and economy of the design.

[0031] As pulley 422 rotates, the bidirectional reciprocating threaded rod 421, which is keyed to it, begins to rotate synchronously in the bearing seat of the support frame 411. The bidirectional reciprocating threaded rod 421 is the key mechanism for the automatic reciprocating cleaning of this device. The thread on its rod is not a single-direction ordinary thread, but rather, with the middle of the rod as the boundary, the left and right sections are machined with threads of opposite directions. For example, the left section is a left-hand thread and the right section is a right-hand thread.

[0032] When the bidirectional reciprocating threaded rod 421 rotates at a constant speed, the threaded sleeve 431, which meshes with it through the threaded pair, cannot rotate along with it because it is constrained by the support frame 411 in the direction of rotation. This converts the rotational motion of the bidirectional reciprocating threaded rod 421 into its own linear movement. Since the thread direction changes in the middle of the rod, when the threaded sleeve 431 moves from one end to the middle, its meshing section with the threaded rod pushes it to move in a straight line. Once the point of change of thread direction is passed, the same rotational direction of the bidirectional reciprocating threaded rod 421 will drive the threaded sleeve 431 to move in the opposite straight line direction. This allows the threaded sleeve 431 to drive the cleaning plate 432, which is rigidly connected to its front end, to perform continuous, stable, periodic, and automatic reciprocating left and right movements along a track parallel to the rear side of the crossbeam body 200 without any additional reversing switches or electrical control programs.

[0033] During this reciprocating motion, the cleaning plate 432, which closely conforms to the rear side of the crossbeam, has a working surface that can be fitted with flexible scrapers, brushes, or composite materials. It systematically and continuously scrapes away chips, oil, dust, and other debris that splashes onto or falls naturally onto the vertical surface during processing, moving them to the chip collection area. This process requires no manual intervention, significantly reducing maintenance frequency and labor intensity. It effectively solves the problem of limited space at the rear of the machine tool and the inconvenience of manual cleaning, keeping critical structural surfaces clean at all times. This avoids problems such as localized corrosion, poor heat dissipation, or sensor misjudgments that may be caused by debris accumulation, thus improving the reliability and overall maintainability of the equipment.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crossbeam, comprising a base (100), characterized in that: The top of the base (100) is fixedly mounted with a crossbeam body (200) for mounting a machine tool. A heat dissipation device (300) for cooling the crossbeam body (200) is provided on the right side of the crossbeam body (200). A cleaning device (400) for cleaning the crossbeam body (200) is provided on the rear side of the base (100), and the heat dissipation device (300) is connected to the cleaning device (400). A mounting surface (205) is provided on the front side of the crossbeam body (200). A rib group (206) for supporting the crossbeam body (200) is provided inside the crossbeam body (200). The heat dissipation device ( 300) includes a heat dissipation component (320) disposed on the right side of the beam body (200) for dissipating heat from the beam body (200). A pulley (310) for driving the heat dissipation component (320) to rotate is disposed on the right side of the heat dissipation component (320). The cleaning device (400) includes a support component (410) fixedly installed at the rear end of the beam body (200). A cleaning component (430) for cleaning the beam body (200) is disposed inside the support component (410). An adjustment component (420) for driving the cleaning component (430) to move left and right is disposed inside the support component (410).

2. A crossbeam according to claim 1, characterized in that: The crossbeam body (200) adopts a high-strength aluminum alloy honeycomb structure, which is lightweight and has strong bending resistance.

3. A crossbeam according to claim 2, characterized in that: A lead screw nut seat (203) for connecting with the machine tool lead screw is fixedly installed on the mounting surface (205), and there are two lead screw nut seats (203), which are symmetrically distributed on the mounting surface (205).

4. A crossbeam according to claim 3, characterized in that: There are several stiffener groups (206), and the several stiffener groups (206) are arranged horizontally in a star pattern within the beam body (200).

5. A crossbeam according to claim 4, characterized in that: A slide rail 1 (201) for moving the machine tool slide is fixedly installed on the mounting surface (205), and a slide rail 2 (202) is fixedly installed on the top of the crossbeam body (200).

6. A crossbeam according to claim 5, characterized in that: The top end of the beam body (200) is provided with through holes (204) for reducing the weight of the beam body (200), and there are several through holes (204), which are distributed in a linear array at the top end of the beam body (200).

7. A crossbeam according to claim 1, characterized in that: The heat dissipation assembly (320) includes a rotating shaft (321) located at the right end of the crossbeam body (200) for rotation, and the rotating shaft (321) is connected to a pulley (310). A heat dissipation fan (322) for dissipating heat from the crossbeam body (200) is fixedly installed on the shaft of the rotating shaft (321).

8. A crossbeam according to claim 7, characterized in that: The support assembly (410) includes a support frame (412) fixedly installed at the rear end of the beam body (200), and a support frame (411) for placing the adjustment assembly (420) is fixedly installed at the rear end of the support frame (412).

9. A crossbeam according to claim 8, characterized in that: The adjustment assembly (420) includes a bidirectional reciprocating threaded rod (421) disposed in the support frame (411) for driving the cleaning assembly (430) to move back and forth. The rod body of the bidirectional reciprocating threaded rod (421) is fixedly mounted with a second pulley (422) for connecting to a pulley (310) via a belt. The right end of the bidirectional reciprocating threaded rod (421) is fixedly mounted with a motor (423) for driving the bidirectional reciprocating threaded rod (421) to rotate.

10. A crossbeam according to claim 9, characterized in that: The cleaning assembly (430) includes a threaded sleeve (431) disposed in the support frame (411) for threaded connection with a bidirectional reciprocating threaded rod (421), and a cleaning plate (432) for cleaning the beam body (200) is fixedly installed at the front end of the threaded sleeve (431).

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