Machine tool body and machine tool

Abstract

This utility model provides a machine tool body and a machine tool. The machine tool body includes a base, a column mounted on the base, a crossbeam mounted on the column, a slide block slidably fitted onto the front side of the crossbeam, a rolling guide rail pair, and a sliding guide rail pair. The slide block includes a seat body, a first connecting body connected to the top of the seat body, and a second connecting body connected to the bottom of the seat body. The first connecting body and the second connecting body are slidably connected to the crossbeam via the rolling guide rail pair, and the side of the seat body is slidably connected to the side of the crossbeam via the sliding guide rail pair. The machine tool body provided by this utility model can improve the load-bearing capacity between the slide block and the crossbeam.

Description

Technical Field

[0001] This utility model relates to the field of processing equipment technology, and in particular to a machine tool body and a machine tool. Background Technology

[0002] During machining, to achieve spindle movement along the Y-axis, the spindle box is typically slidably mounted on the front side of the crossbeam via a slide block. The slide block and the crossbeam are slidably connected by a rolling guide pair (such as a ball bearing guide pair) (see patent publication number CN120572271A). Rolling guide pairs offer high-speed movement, especially during high-speed idle stroke machining, saving time and increasing efficiency.

[0003] However, rolling guide pairs have relatively poor load-bearing capacity and are easily damaged during machining with large cutting forces.

[0004] Therefore, improving the load-bearing capacity between the slide and the crossbeam is an urgent problem to be solved. Utility Model Content

[0005] This utility model provides a machine tool body and machine tool, which can improve the load-bearing capacity between the slide and the crossbeam.

[0006] This utility model provides a machine tool body, including a base, a column disposed on the base, a crossbeam disposed on the column, and a slide seat slidably sleeved on the front side of the crossbeam.

[0007] It also includes a rolling guide pair and a sliding guide pair. The slide includes a seat body, a first connecting body connected to the top of the seat body, and a second connecting body connected to the bottom of the seat body. The first connecting body and the second connecting body are slidably connected to the crossbeam through the rolling guide pair. The side of the seat body and the side of the crossbeam are slidably connected through the sliding guide pair.

[0008] In some feasible implementations, the rolling guide pair includes a first rolling guide assembly and a second rolling guide assembly, wherein the first rolling guide assembly is disposed between the first connecting body and the top surface of the crossbeam, and the second rolling guide assembly is disposed between the second connecting body and the bottom surface of the crossbeam;

[0009] The sliding guide rail pair includes a slide rail and a slide groove that guides and cooperates with the slide rail along the extension direction of the crossbeam; the slide rail is protruding from the side of the seat facing the crossbeam and the slide groove is recessed from the side of the crossbeam facing the seat, or the slide rail is protruding from the side of the crossbeam facing the seat and the slide groove is recessed from the side of the seat facing the crossbeam.

[0010] In some feasible embodiments, the slide rail includes a first slide rail portion and a second slide rail portion, and the slide groove includes a first slide groove and a second slide groove. The first slide rail portion is guided and engaged with the first slide groove, and the second slide rail portion is guided and engaged with the second slide groove. The first slide rail portion is located above the second slide rail portion, and the vertical extension height of the first slide rail portion is less than the vertical extension height of the second slide rail portion.

[0011] In some feasible implementations, the first rolling guide rail assembly includes a first slider and a first linear guide rail. The top surface of the crossbeam is provided with a first mounting groove for receiving the first linear guide rail. The first mounting groove is provided along the extension direction of the crossbeam. The first slider is disposed on the bottom side of the first connecting body. The crossbeam also includes a first adjusting block. The first adjusting block is disposed in the first mounting groove and can move toward the first linear guide rail to adjust the position of the first linear guide rail in the first mounting groove.

[0012] In some feasible implementations, the side of the first mounting groove away from the slide is provided with an inclined groove wall, and the groove wall is set at an obtuse angle with the bottom of the first mounting groove, and the side of the first adjusting block away from the slide corresponds to the inclination angle of the groove wall.

[0013] The second rolling guide rail assembly includes a second slider and a second linear guide. The bottom surface of the crossbeam is provided with a second mounting groove for receiving the second linear guide. The second mounting groove is provided along the extension direction of the crossbeam. The second slider is provided on the top side of the second connecting body. The crossbeam also includes a second adjusting block. The second adjusting block is provided in the second mounting groove and can move towards the second linear guide to adjust the position of the second linear guide in the second mounting groove.

[0014] In some feasible embodiments, the slide block further includes a clamping block, which is connected to the end of the first connecting body away from the seat body and extends along the sliding direction of the seat body. The clamping block, the first connecting body and the seat body together form a first receiving cavity for receiving the first slider.

[0015] The clamping block is connected to the end of the second connecting body away from the seat and extends along the sliding direction of the seat. The clamping block, the second connecting body and the seat together form a second receiving cavity for receiving the second slider.

[0016] In some feasible implementations, the slide further includes a mounting plate and a fixing plate, the mounting plate being disposed between the first connecting body and the first rolling guide rail assembly, and the side of the mounting plate being connected to the side of the first connecting body via the fixing plate.

[0017] In some feasible embodiments, the crossbeam includes a body and a fixing part along the front-rear direction. The body and the fixing part are integrally formed or detachably connected. A first clearance space for installing a telescopic cover is provided at the high position of the fixing part. The telescopic cover covers the body and is connected to the side of the slide. The top of the body is higher than the top of the fixing part. A second clearance space for installing a drive assembly is provided in the middle of the side of the body away from the fixing part. A third clearance space for accommodating the second connector is provided below the body. The bottom of the body is higher than the bottom of the fixing part.

[0018] In some feasible implementations, the bottom of the crossbeam is provided with an oil receiving box protruding below the second connector;

[0019] The slide also includes a protective component connected to the second connecting body and spaced apart below the second connecting body, and the oil receiving box is located between the second connecting body and the protective component.

[0020] This utility model also provides a machine tool, including a sheet metal outer protection and the aforementioned machine tool body. A spindle is provided on the slide, and the sheet metal outer protection is disposed on the base and surrounds the outer periphery of the spindle.

[0021] The machine tool body described above is provided with a base, a column on the base, a crossbeam on the column, a slide block slidably sleeved on the front side of the crossbeam, a rolling guide rail pair, and a sliding guide rail pair. The slide block includes a seat body, a first connecting body connected to the top of the seat body, and a second connecting body connected to the bottom of the seat body. The first connecting body and the second connecting body are slidably connected to the crossbeam through the rolling guide rail pair, and the side of the seat body is slidably connected to the side of the crossbeam through the sliding guide rail pair.

[0022] Sliding connections are achieved by simultaneously setting two types of guide pairs, rolling guide pairs and sliding guide pairs, between the slide and the crossbeam. Rolling guide pairs are generally ball-bearing, and the friction of ball-bearing is less than that of sliding guide pairs, so the acceleration is faster. Sliding guide pairs are generally a combination of long strip slide rails and slide grooves. Through surface contact, the load-bearing capacity between the slide and the crossbeam can be improved, allowing the spindle to perform heavy cutting. This allows the slide and the crossbeam to slide quickly and withstand large loads. Attached Figure Description

[0023] 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 the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the machine tool body from a first perspective, according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the machine tool body from a second perspective, according to an embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the assembly of the crossbeam of the machine tool body and the first linear guide provided in an embodiment of the present invention.

[0027] Component Symbol Explanation

[0028] 100. Crossbeam; 101. First mounting slot; 1011. Slot bottom; 1012. Slot wall; 102. First adjusting block; 103. Second mounting slot; 104. Second adjusting block; 110. Main body; B2. Second clearance space; B3. Third clearance space; 120. Fixing part; 130. Oil receiving box; B1. First clearance space; 200. Slide; 210. Seat body; 220. First connecting body; 230. Second connecting body; 240. Mounting plate ; 250, Fixed plate; 260, Protective component; 270, Clamping block; 300, Rolling guide pair; 310, First rolling guide assembly; 311, First slider; 312, First linear guide; 320, Second rolling guide assembly; 321, Second slider; 322, Second linear guide; 400, Sliding guide pair; 410, Slide rail; 411, First slide rail part; 412, Second slide rail part; 420, Slide groove; 421, First slide groove; 422, Second slide groove.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] To provide a clearer and more accurate understanding of the present invention, a detailed description will now be provided in conjunction with the accompanying drawings. The accompanying drawings illustrate examples of embodiments of the present invention, wherein the same reference numerals denote the same elements. It is to be understood that the scale shown in the accompanying drawings is not the actual scale of the present invention, but is for illustrative purposes only and is not a drawing based on the original dimensions.

[0034] In existing technologies, the slide and crossbeam are slidably connected via rolling guide pairs (such as ball bearing guide pairs). The friction of ball bearings is less than that of sliding guides, and rolling guide pairs offer faster movement speeds, especially during high-speed idle stroke machining, resulting in greater time savings and higher efficiency. However, due to the small contact area, they can only withstand machining scenarios with low cutting forces; in scenarios with high cutting forces, they will accelerate ball wear and may even crush the balls.

[0035] To improve the load-bearing capacity between the slide and the crossbeam, please refer to... Figure 1 This utility model provides a machine tool body, including a base, a column mounted on the base, a crossbeam 100 mounted on the column, a slide 200 slidably sleeved on the front side of the crossbeam 100, a rolling guide pair 300, and a sliding guide pair 400. By adding the sliding guide pair 400, the load-bearing capacity between the slide 200 and the crossbeam 100 can be improved, thereby enabling the spindle to perform heavy cutting. During heavy cutting, the sliding guide pair 400 can withstand a large cutting force, protecting the rolling guide pair 300 while also enjoying the advantage of faster acceleration brought by the rolling guide pair 300, ensuring that the slide 200 moves quickly relative to the crossbeam 100.

[0036] To increase the contact area between the slide block 200 and the crossbeam 100, thereby providing space for the installation of the rolling guide pair 300 and the sliding guide pair 400, and avoiding positional interference between the rolling guide pairs 300, between the sliding guide pairs 400, and between the rolling guide pairs 300 and the sliding guide pairs 400, please refer to... Figure 2 The slide 200 includes a seat 210, a first connector 220 connected to the top of the seat 210, and a second connector 230 connected to the bottom of the seat 210. By providing the first connector 220 and the second connector 230 on the seat 210, the slide 200 is U-shaped as a whole. The first connector 220 and the second connector 230 can be slidably stacked with the crossbeam 100 in the vertical direction, so that the slide 200 and the crossbeam 100 have three surfaces in contact. Compared with the traditional case where only the side of the slide 200 contacts the crossbeam 100, the contact area between the slide 200 and the crossbeam 100 is increased. Furthermore, the width of the first connector 220 is equal to or slightly larger than the width of the rolling guide pair 300, so that the weight of the slide 200 is increased as little as possible, ensuring that the acceleration of sliding between the slide 200 and the crossbeam 100 is sufficiently large.

[0037] The following describes in detail the vertical assembly relationship between the slide block 200 and the crossbeam 100. Both the first connecting body 220 and the second connecting body 230 are slidably connected to the crossbeam 100 via the rolling guide pair 300. For details, please refer to... Figure 2 The rolling guide pair 300 includes a first rolling guide assembly 310 and a second rolling guide assembly 320. The first rolling guide assembly 310 is disposed between the first connecting body 220 and the top surface of the crossbeam 100, and the second rolling guide assembly 320 is disposed between the second connecting body 230 and the bottom surface of the crossbeam 100. By installing the rolling guide pair 300 on the top and bottom of the crossbeam 100, the friction between the slide 200 and the crossbeam 100 along the contact surface under gravity can be reduced. Furthermore, since both the first rolling guide assembly 310 and the second rolling guide assembly 320 are arranged vertically, the problem of incomplete contact between the sub-components in the first rolling guide assembly 310 and the second rolling guide assembly 320 is avoided when the first rolling guide assembly 310 and the second rolling guide assembly 320 are side-mounted. This ensures stable contact between the sub-components in the first rolling guide assembly 310 and the sub-components in the second rolling guide assembly 320.

[0038] The following describes the sub-components within the first rolling guide assembly 310 and the assembly relationship between the first rolling guide assembly 310, the slide block 200, and the crossbeam 100. The first rolling guide assembly 310 includes a first slider 311 and a first linear guide 312. The top surface of the crossbeam 100 is provided with a first mounting groove 101 for receiving the first linear guide 312. The first mounting groove 101 is arranged along the extending direction of the crossbeam 100. The first slider 311 is disposed on the bottom side of the first connecting body 220. The crossbeam 100 also includes a first adjusting block 102. The first adjusting block 102 is disposed within the first mounting groove 101 and can move towards the first linear guide 312 to adjust the position of the first linear guide 312 within the first mounting groove 101. The details of how the first adjusting block 102 adjusts the position of the first linear guide 312 are described below.

[0039] The following describes how the first adjusting block 102 adjusts the position of the first linear guide 312 within the first mounting slot 101. Please refer to [link / reference]. Figure 3 The first mounting groove 101 has an inclined groove wall 1012 on the side away from the slide block 200, and the groove wall 1012 is set at an obtuse angle with the bottom 1011 of the first mounting groove 101. The inclined angle of the side of the first adjusting block 102 away from the slide block 200 corresponds to that of the groove wall 1012. By adjusting the contact area between the inclined surface of the first adjusting block 102 and the groove wall 1012, the position of the first linear guide 312 in the mounting groove can be adjusted. For example, the closer the first adjusting block 102 is to the bottom 1011 vertically, the larger the contact area between the first adjusting block 102 and the inclined surface of the groove wall 1012, and the closer the first linear guide 312 is to the slide block 200. Conversely, the further the first adjusting block 102 is from the bottom 1011 vertically, the smaller the contact area between the first adjusting block 102 and the inclined surface of the groove wall 1012, and the further the first linear guide 312 is from the slide block 200. After the first adjusting block 102 adjusts the first guide rail 312 into place, the first guide rail 312 is then locked to the crossbeam 100 by the locking component, and the first adjusting block 102 remains fixed relative to the first guide rail 312.

[0040] To increase the contact area between the first linear guide 312 and the slide block 200, thereby improving the stability of the connection between the first linear guide 312 and the slide block 200, the slide block 200 also includes a clamping block 270. Please refer to [link / reference needed]. Figure 2The clamping block 270 is connected to the end of the first connecting body 220 away from the seat 210 and extends along the sliding direction of the seat 210. The clamping block 270, the first connecting body 220 and the seat 210 enclose a first receiving cavity for receiving the first slider 311. By setting the clamping block 270, the position of the first slider 311 can be fixed in the front-back direction by the seat 210, the first connecting body 220 and the clamping block 270, preventing the first slider 311 from tilting in the front-back direction and ensuring that the first slider 311 and the first linear guide 312 maintain a tight fit.

[0041] To increase the contact area between the second linear guide 322 and the second slide 200, thereby improving the stability of the connection between the second linear guide 322 and the second slide 200, please refer to... Figure 2 The clamping block 270 is connected to the end of the second connecting body 230 away from the seat 210 and extends along the sliding direction of the seat 210. The clamping block 270, the second connecting body 230, and the seat 210 together form a second receiving cavity for receiving the second slider 321. By providing the clamping block 270, the position of the second slider 321 can be fixed in the front-back direction by the seat 210, the second connecting body 230, and the clamping block 270, preventing the second slider 321 from tilting in the front-back direction and ensuring that the second slider 321 and the second linear guide 322 maintain a tight fit.

[0042] Because of the clamping block 270, the first connecting body 220 and the second connecting body 230 already have transverse threaded holes for locking with the clamping block 270 along the direction of the front side of the vertical beam 100. To avoid adding vertical threaded holes within the clamping block 270 and preventing interference between the newly added vertical threaded holes and the existing transverse threaded holes, while also achieving locking between the first slider 311 and the first connecting body 220, please refer to... Figure 2 The slide block 200 also includes a mounting plate 240 and a fixing plate 250. The mounting plate 240 is disposed between the first connecting body 220 and the first rolling guide rail assembly 310 in the vertical direction. The side of the mounting plate 240 is connected to the side of the first connecting body 220 through the fixing plate 250.

[0043] By adding a mounting plate 240, it is not necessary to open a threaded hole in the vertical direction of the first connecting body 220. Instead, a longitudinal threaded hole is opened on the side of the first connecting body 220, and a threaded hole is set on the newly added mounting plate 240. The fixing plate 250 is locked to the side of the first connecting body 220 and the mounting plate 240. That is, the first connecting body 220 is provided with a longitudinal threaded hole on one side along the sliding direction. A part of the fixing plate 250 is connected to the longitudinal threaded hole of the first connecting body 220 by fasteners, and the other part of the fixing plate 250 is connected to the mounting plate 240 by fasteners. Thus, the mounting plate 240 is connected to the side of the first connecting body 220 by means of the fixing plate 250, ensuring the connection between the first slider 311 and the mounting plate 240, and ensuring that the first connecting body 220 has a certain rigidity. The first slider 311 is vertically positioned between the first connecting body 220 and the crossbeam 100. Therefore, it is only necessary to connect the side of the mounting plate 240 along the sliding direction to the first connecting body 220 to achieve locking between the mounting plate 240 and the first connecting body 220. The front of the mounting plate 240 does not need to be connected to the first connecting body 220, but the front of the mounting plate 240 can be connected to the first slider 311. It can be understood that the second connecting body 230 is also locked to the second slider 321 by additionally adding the mounting plate 240 and the fixing plate 250.

[0044] The following describes the sub-components of the second rolling guide assembly 320 and the assembly relationship between the second rolling guide assembly 320, the slide block 200, and the crossbeam 100. It also explains how the second adjusting block 104 adjusts the position of the second linear guide 322 within the second mounting groove 103. Please refer to [link / reference]. Figure 2 The second rolling guide assembly 320 includes a second slider 321 and a second linear guide 322. The bottom surface of the crossbeam 100 is provided with a second mounting groove 103 for receiving the second linear guide 322. The second mounting groove 103 is provided along the extension direction of the crossbeam 100. The second slider 321 is provided on the top side of the second connecting body 230. The crossbeam 100 also includes a second adjusting block 104. The second adjusting block 104 is provided in the second mounting groove 103 and can move towards the second linear guide 322 to adjust the position of the second linear guide 322 in the second mounting groove 103. The structure of the second adjusting block 104 is similar to that of the first adjusting block 102. The structure of the second mounting groove 103 is also similar to that of the first mounting groove 101. The position of the second linear guide 322 in the second mounting groove 103 is determined by the size of the contact area of ​​the inclined surface.

[0045] The following describes in detail the horizontal assembly relationship between the slide block 200 and the crossbeam 100. The side of the seat 210 and the side of the crossbeam 100 are slidably connected by the sliding guide rail pair 400. In this embodiment, please refer to... Figure 1 and2 The sliding guide pair 400 includes a slide rail 410 and a slide groove 420 that guides and engages with the slide rail 410 along the extending direction of the crossbeam 100. The slide rail 410 extends along the sliding direction of the slide seat 200, and the slide groove 420 also extends along the sliding direction of the slide seat 200. In some other embodiments, the sliding guide pair 400 may include two slide rails 410, as long as the slide seat 200 and the side of the crossbeam 100 can make surface contact. Since the surface area of ​​the side of the seat 210 is greater than the sum of the surface areas of the first connecting body 220 and the second connecting body 230, and the contact area of ​​the sliding guide pair 400 is not fixed relative to the rolling guide pair 300, it can be adjusted according to the surface area between the slide seat 200 and the crossbeam 100. Therefore, by setting the sliding guide pair 400 between the side of the seat 210 and the crossbeam 100, the sliding contact surface between the sliding guide pairs 400 can be improved.

[0046] To enable the slide 200 to move relative to the crossbeam 100 along a preset straight line, please refer to... Figure 2 The slide rail 410 protrudes from the side of the seat 210 facing the crossbeam 100, and the slide groove 420 is recessed from the side of the crossbeam 100 facing the seat 210. Alternatively, the slide rail 410 protrudes from the side of the crossbeam 100 facing the seat 210, and the slide groove 420 is recessed from the side of the seat 210 facing the crossbeam 100. This prevents the slide block 200 from shifting vertically relative to the crossbeam 100, keeps the height of the slide block 200 consistent during sliding, and ensures the stability of the slide block 200 relative to the crossbeam 100.

[0047] To increase the area of ​​the sliding guide pair 400, thereby maximizing the load-bearing capacity between the slide block 200 and the crossbeam 100, please refer to... Figure 1 and 2 The slide rail 410 includes a first slide rail portion 411 and a second slide rail portion 412, which are vertically spaced apart. The slide groove 420 includes a first slide groove 421 and a second slide groove 422, which are vertically spaced apart. The first slide rail portion 411 is guided and engaged with the first slide groove 421, and the second slide rail portion 412 is guided and engaged with the second slide groove 422.

[0048] The first slide rail 411 is located above the second slide rail 412, and the vertical extension height of the first slide rail 411 is less than the vertical extension height of the second slide rail 412. The spindle box and spindle are installed on the side of the slide block 200 away from the crossbeam 100. The spindle box and slide block 200 tend to tilt forward due to the forward center of gravity. The lower second slide rail 412 bears more load than the higher first slide rail 411. Therefore, the second slide rail 412 is made wider as the main support, and the first slide rail 411 is made narrower as the auxiliary support, so the width of the first slide rail 411 and the second slide rail 412 are reasonably designed.

[0049] To facilitate the installation of other structural components onto the crossbeam 100 and to reduce the weight of the crossbeam 100, please refer to... Figure 2 The crossbeam 100 includes a body portion 110 and a fixing portion 120 along the front-rear direction. In this embodiment, the body portion 110 and the fixing portion 120 are integrally formed. A first clearance space B1 for installing a telescopic cover is provided at the high position of the fixing portion 120. The telescopic cover covers the body portion 110 and is connected to the side of the slide 200. The top of the body portion 110 is higher than the top of the fixing portion 120. A second clearance space B2 for installing a drive assembly is provided in the middle of the side of the body portion 110 away from the fixing portion 120. A third clearance space B3 for accommodating the second connecting body 230 is provided below the body portion 110. The bottom of the body portion 110 is higher than the bottom of the fixing portion 120, so that the second connecting body 230 is hidden in the third clearance space B3, so that the sum of the weight of the mounting slide 200 and the body portion 110 is approximately equal to the weight of the fixing portion 120, thereby improving the stability of the machine tool body.

[0050] To improve the flexibility of machine tool body assembly, in some other embodiments, the body part 110 and the fixing part 120 are detachably connected. When assembling the machine tool body, the body part 110 can be connected to the slide 200 first, and then the semi-finished product connected to the slide 200 can be connected to the fixing part 120. This can improve the flexibility of machine tool body assembly and speed up the assembly efficiency of the machine tool body.

[0051] To improve the protection of the rolling guide pair 300 and the sliding guide pair 400, please refer to... Figure 1 and 2The bottom of the crossbeam 100 is provided with an oil receiving box 130 protruding below the second connector 230. The lubricating oil flowing down from the second connector 230 will be received and collected by the oil receiving box 130. The slide block 200 also includes a protective member 260 connected to the second connector 230 and spaced below the second connector 230. The oil receiving box 130 is located between the second connector 230 and the protective member 260. The oil collection box 130 is fixed, while the second connector 230 and the protective component 260 are movable. Therefore, the second connector 230, the oil collection box 130, and the protective component 260 form a maze structure. When cutting fluid reaches the area between the protective component 260 and the oil collection box 130, it will be blocked by the second connector 230 and will fall back along the same path, preventing it from reaching the installation area of ​​the rolling guide pair 300 and the sliding guide pair 400. This ensures that the rolling guide pair 300 and the sliding guide pair 400 are protected from contamination by cutting fluid and chips.

[0052] The machine tool body described above includes a base, a column mounted on the base, a crossbeam 100 mounted on the column, a slide 200 slidably sleeved on the front side of the crossbeam 100, a rolling guide pair 300, and a sliding guide pair 400. The slide 200 includes a seat 210, a first connecting body 220 connected to the top of the seat 210, and a second connecting body 230 connected to the bottom of the seat 210. The first connecting body 220 and the second connecting body 230 are slidably connected to the crossbeam 100 through the rolling guide pair 300, and the side of the seat 210 is slidably connected to the side of the crossbeam 100 through the sliding guide pair 400.

[0053] Sliding connection is achieved by simultaneously setting two types of guide pairs, rolling guide pair 300 and sliding guide pair 400, between the slide 200 and the crossbeam 100. The rolling guide pair 300 is generally of the ball bearing type. The friction of the ball bearing type is less than that of the sliding type, so the acceleration is faster. The sliding guide pair 400 is generally a combination of a long strip slide rail 410 and a slide groove 420. Through surface contact, the load-bearing capacity between the slide 200 and the crossbeam 100 can be improved, enabling the spindle to perform heavy cutting. Thus, the slide 200 and the crossbeam 100 can slide quickly and withstand large loads.

[0054] This utility model also provides a machine tool, including a sheet metal outer protection and the aforementioned machine tool body. A spindle is provided on the slide 200, and the sheet metal outer protection is disposed on the base and surrounds the outer periphery of the spindle.

[0055] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0056] The above-listed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A machine tool body, comprising a base, a column disposed on the base, a crossbeam (100) disposed on the column, and a slide (200) slidably sleeved on the front side of the crossbeam (100), characterized in that, It also includes a rolling guide pair (300) and a sliding guide pair (400). The slide (200) includes a seat (210), a first connecting body (220) connected to the top of the seat (210), and a second connecting body (230) connected to the bottom of the seat (210). The first connecting body (220) and the second connecting body (230) are slidably connected to the crossbeam (100) through the rolling guide pair (300). The side of the seat (210) is slidably connected to the side of the crossbeam (100) through the sliding guide pair (400).

2. The machine tool body as described in claim 1, characterized in that, The rolling guide pair (300) includes a first rolling guide assembly (310) and a second rolling guide assembly (320). The first rolling guide assembly (310) is disposed between the first connecting body (220) and the top surface of the crossbeam (100), and the second rolling guide assembly (320) is disposed between the second connecting body (230) and the bottom surface of the crossbeam (100). The sliding guide pair (400) includes a slide rail (410) and a slide groove (420) that guides and engages with the slide rail (410) along the extension direction of the crossbeam (100); the slide rail (410) is protruding from the side of the seat (210) facing the crossbeam (100) and the slide groove (420) is recessed from the side of the crossbeam (100) facing the seat (210), or the slide rail (410) is protruding from the side of the crossbeam (100) facing the seat (210) and the slide groove (420) is recessed from the side of the seat (210) facing the crossbeam (100).

3. The machine tool body as described in claim 2, characterized in that, The slide rail (410) includes a first slide rail portion (411) and a second slide rail portion (412), and the slide groove (420) includes a first slide groove (421) and a second slide groove (422). The first slide rail portion (411) is guided and engaged with the first slide groove (421), and the second slide rail portion (412) is guided and engaged with the second slide groove (422). The first slide rail portion (411) is located above the second slide rail portion (412), and the vertical extension height of the first slide rail portion (411) is less than the vertical extension height of the second slide rail portion (412).

4. The machine tool body as described in claim 2, characterized in that, The first rolling guide rail assembly (310) includes a first slider (311) and a first linear guide (312). The top surface of the crossbeam (100) is provided with a first mounting groove (101) for receiving the first linear guide (312). The first mounting groove (101) is provided along the extension direction of the crossbeam (100). The first slider (311) is provided on the bottom side of the first connecting body (220). The crossbeam (100) also includes a first adjusting block (102). The first adjusting block (102) is provided in the first mounting groove (101) and can move toward the first linear guide (312) to adjust the position of the first linear guide (312) in the first mounting groove (101).

5. The machine tool body as described in claim 4, characterized in that, The first mounting groove (101) has an inclined groove wall (1012) on the side away from the slide (200), and the groove wall (1012) is set at an obtuse angle with the bottom (1011) of the first mounting groove (101). The side of the first adjusting block (102) away from the slide (200) corresponds to the inclination angle of the groove wall (1012). The second rolling guide assembly (320) includes a second slider (321) and a second linear guide (322). The bottom surface of the crossbeam (100) is provided with a second mounting groove (103) for receiving the second linear guide (322). The second mounting groove (103) is provided along the extension direction of the crossbeam (100). The second slider (321) is provided on the top side of the second connecting body (230). The crossbeam (100) also includes a second adjusting block (104). The second adjusting block (104) is provided in the second mounting groove (103) and can move toward the second linear guide (322) to adjust the position of the second linear guide (322) in the second mounting groove (103).

6. The machine tool body as described in claim 5, characterized in that, The slide block (200) further includes a clamping block (270), which is connected to the end of the first connecting body (220) away from the seat body (210) and extends along the sliding direction of the seat body (210). The clamping block (270), the first connecting body (220) and the seat body (210) together form a first receiving cavity for receiving the first slider (311). The clamping block (270) is connected to the end of the second connector (230) away from the seat (210) and extends along the sliding direction of the seat (210). The clamping block (270), the second connector (230) and the seat (210) together form a second receiving cavity for receiving the second slider (321).

7. The machine tool body according to any one of claims 2-6, characterized in that, The slide (200) also includes a mounting plate (240) and a fixing plate (250). The mounting plate (240) is disposed between the first connecting body (220) and the first rolling guide rail assembly (310). The side of the mounting plate (240) is connected to the side of the first connecting body (220) through the fixing plate (250).

8. The machine tool body as described in claim 7, characterized in that, The crossbeam (100) includes a body part (110) and a fixing part (120) along the front-back direction. The body part (110) and the fixing part (120) are integrally formed or detachably connected. A first clearance space (B1) for installing a telescopic cover is provided at the high position of the fixing part (120). The telescopic cover covers the body part (110) and is connected to the side of the slide (200). The top of the body part (110) is higher than the top of the fixing part (120). A second clearance space (B2) for installing a drive component is provided in the middle of the side of the body part (110) away from the fixing part (120). A third clearance space (B3) for accommodating the second connector (230) is provided below the body part (110). The bottom of the body part (110) is higher than the bottom of the fixing part (120).

9. The machine tool body as described in claim 7, characterized in that, The bottom of the crossbeam (100) is provided with an oil receiving box (130) protruding below the second connector (230); The slide (200) further includes a protective member (260) connected to the second connector (230) and spaced below the second connector (230), and the oil receiving box (130) is located between the second connector (230) and the protective member (260).

10. A machine tool, comprising sheet metal outer protection, characterized in that, It also includes the machine tool body as described in any one of claims 1-9, wherein a spindle is provided on the slide (200), and the sheet metal outer protection is provided on the base and surrounds the outer periphery of the spindle.

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