turning center

Abstract

The application discloses a turning center, which comprises a base and a tool holder assembly. The top of the base is provided with a first surface, which is perpendicular to the height direction of the turning center, and a guide rail set is arranged on the first surface, and the extension direction of the guide rail set is parallel to the first surface. The tool holder assembly comprises a tool holder and a support seat, the support seat is slidably arranged on the guide rail set, the top of the support seat is provided with a second surface, which is inclined to the first surface, a first guide rail is arranged on the second surface, the extension direction of the first guide rail is parallel to the second surface, and the tool holder is slidably arranged on the first guide rail. The turning center solves the problem of the large overall volume of the turning center in the prior art.

Description

Technical Field

[0001] This application relates to the field of machining technology, and more specifically, to a turning center. Background Technology

[0002] Turning centers can process shaft parts and rotating parts. During processing, they not only have turning functions, but also can perform multiple composite processing operations such as drilling, boring, milling, thread cutting and tapping.

[0003] In traditional turning centers, the tool holder is typically slidably mounted on a guide rail to facilitate its movement to the workpiece. However, existing turning centers suffer from excessive overall size and are prone to chip accumulation. Utility Model Content

[0004] The main objective of this application is to provide a turning center that at least solves the problem of excessively large overall size of turning centers in the prior art.

[0005] According to one aspect of this application, a turning center is provided, comprising:

[0006] The base has a first surface on its top, the first surface being perpendicular to the height direction of the turning center, and a guide rail assembly is provided on the first surface, the extension direction of the guide rail assembly being parallel to the first surface.

[0007] A tool holder assembly, comprising a tool holder and a support base, the support base being slidably disposed on the guide rail assembly, the top of the support base having a second surface inclined to a first surface, a first guide rail being disposed on the second surface, the extension direction of the first guide rail being parallel to the second surface, and the tool holder being slidably disposed on the first guide rail.

[0008] Furthermore, the angle A between the plane containing the first surface and the plane containing the second surface satisfies the relationship: 35°≤A≤70°.

[0009] Furthermore, the first guide rail includes:

[0010] The track has a limiting groove provided along its length, and the depth of the limiting groove extends along the width of the track.

[0011] A slider is slidably disposed in the limiting groove. The slider has an upper surface and a plurality of upper static pressure cavities are formed on the upper surface. The plurality of upper static pressure cavities are spaced apart along the length direction of the slider, and each upper static pressure cavity is located between the limiting groove and the slider.

[0012] A support platform, which is fixed to the top of the slider;

[0013] The limiting groove has a first side wall opposite to the upper surface. A first oil drain channel is provided between the first side wall and the upper surface. The first oil drain channel extends along the length of the slider and is located on the side of the upper static pressure chamber away from the limiting groove. The upper static pressure chamber has a first side wall on the side close to the first oil drain channel. The vertical distance from the first side wall of each upper static pressure chamber to the first oil drain channel is the same.

[0014] Furthermore, the guide rail assembly includes:

[0015] A second guide rail is disposed on the first surface and extends along a first direction;

[0016] The third guide rail is disposed on top of the second guide rail, and the support base is disposed on top of the third guide rail. The third guide rail extends along a second direction, which is perpendicular to the first direction and the height direction of the turning center.

[0017] Furthermore, the first guide rail extends in a third direction;

[0018] Wherein, within the projection of the turning center in the height direction, the third direction is parallel to the second direction, and / or the third direction is perpendicular to the first direction.

[0019] Furthermore, a fourth guide rail is also provided on the first surface. The fourth guide rail and the guide rail group are spaced apart along the second direction. The fourth guide rail is parallel to the first surface and extends along the first direction. The second surface is inclined in the direction close to the fourth guide rail.

[0020] The turning center also includes a spindle assembly, which is at least partially slidably disposed on the fourth guide rail.

[0021] Furthermore, the turning center also includes a protective part, which covers at least the outer periphery of the fourth guide rail, and the top of the protective part has a third surface that is inclined to the first surface.

[0022] Furthermore, the spindle assembly includes:

[0023] The first spindle is fixed to the base and extends along the height direction of the turning center, and the first spindle is located outside the fourth guide rail;

[0024] The second spindle is slidably disposed on the fourth guide rail and extends along the height direction of the turning center;

[0025] The direction from the first spindle to the second spindle is parallel to the first direction.

[0026] Furthermore, the turning center also includes a chip conveyor, which is disposed on the outside of the base. The chip conveyor has a chip removal section on its top, and along the height direction of the turning center, the chip removal section is lower than or equal to the first surface.

[0027] Furthermore, the top of the base is provided with a confluence groove, the bottom surface of the confluence groove is inclined, and the side wall of the confluence groove is provided with a first channel and a second channel. The first channel extends from the confluence groove to the first surface, and the confluence groove is connected to the chip removal part through the second channel.

[0028] Furthermore, the turning center also includes a guide section, the first end of which is disposed in the second channel, and the second end of which extends to the chip removal section.

[0029] Compared to existing technologies, the base of this application has a first surface perpendicular to the height direction of the turning center, and a guide rail assembly is disposed on and parallel to the first surface. Simultaneously, this application includes a support base slidably disposed on the first surface, and a second surface is disposed on the support base, inclined to the first surface. The first guide rail is disposed on and parallel to the second surface. In other words, the arrangement of the first surface, support base, and second surface eliminates the need for a protrusion on the base of the turning center, thereby reducing the overall volume of the turning center to some extent. Furthermore, because the second surface is inclined to the first surface, when there is chip material on the second surface, the chip material can fall off under gravity, thus preventing chip accumulation on the turning center to some extent. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0031] Figure 1 This is a first-person view of a portion of the structure of the turning center disclosed in this application (with the protective part removed);

[0032] Figure 2 for Figure 1 Enlarged schematic diagram of region I;

[0033] Figure 3This is a schematic diagram of a portion of the turning center disclosed in this application from a second-view perspective (with the protective part removed);

[0034] Figure 4 This is a schematic diagram of the turning center disclosed in this application;

[0035] Figure 5 This is a schematic diagram of the base and guide rail assembly disclosed in this application;

[0036] Figure 6 This is a structural schematic diagram of the base, guide rail assembly, and support seat disclosed in this application;

[0037] Figure 7 This is a schematic diagram of the exploded structure of the first guide rail disclosed in this application;

[0038] Figure 8 This is a schematic diagram of the structure of the first guide rail disclosed in this application;

[0039] Figure 9 This is a schematic diagram of the slider disclosed in this application from a third-person perspective.

[0040] Figure 10 This is a schematic diagram of the slider disclosed in this application from a fourth-person perspective.

[0041] The above figures include the following reference numerals:

[0042] 10. Base; 20. Tool Post Assembly; 21. Support Base; 22. Tool Post; 30. Guide Rail Assembly; 31. First Guide Rail; 32. Second Guide Rail; 33. Third Guide Rail; 34. Fourth Guide Rail; 40. Spindle Assembly; 41. First Spindle; 42. Second Spindle; 50. Chip Conveyor; 60. Protective Part; 70. Guide Section; 101. First Surface; 102. Combustion Channel; 211. Second Surface; 311. Rail; 312. Slider; 313. Bearing 501, chip removal section; 601, third surface; 1021, first channel; 1022, second channel; 3111, limiting groove; 3112, first side wall; 3113, second side wall; 3121, upper surface; 3122, lower surface; 31211, upper static pressure chamber; 31212, first side wall; 31213, first oil discharge channel; 31221, lower static pressure chamber; 31222, second side wall; 31223, second oil discharge channel. Detailed Implementation

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0046] In existing turning centers, such as those disclosed in Chinese patents CN113275904A and CN217044621U, in order to facilitate the removal of chips from the turning center and enable the tool holder 22 to move along the height direction of the turning center, the base 10 needs to protrude in the height direction of the turning center, resulting in an excessively large overall volume of the turning center.

[0047] To solve the above problem, see Figures 1 to 6 As shown, according to an embodiment of this application, a turning center is provided, which includes a base 10 and a tool post assembly 20. The top of the base 10 has a first surface 101, which is perpendicular to the height direction of the turning center (as shown in the attached figure). Figure 3 In the Z-direction, a guide rail assembly 30 is provided on the first surface 101, and the extension direction of the guide rail assembly 30 is parallel to the first surface 101. The tool holder assembly 20 includes a tool holder 22 and a support base 21. The support base 21 is slidably disposed on the guide rail assembly 30. The top of the support base 21 has a second surface 211, which is inclined to the first surface 101. A first guide rail 31 is provided on the second surface 211, and the extension direction of the first guide rail 31 is parallel to the second surface 211. The tool holder 22 is slidably disposed on the first guide rail 31.

[0048] Specifically, the tool holder 22, under the action of the guide rail assembly 30 and the first guide rail 31, can change position in space, facilitating the adjustment of the tool holder 22 to a suitable position for machining the workpiece. Unlike existing technologies, this embodiment has a first surface 101 on the base 10, which is perpendicular to the height direction of the turning center. The guide rail assembly 30 is disposed on and parallel to the first surface 101. Simultaneously, this embodiment includes a support base 21, which is slidably disposed on the first surface 101. A second surface 211 is disposed on the support base 21, inclined to the first surface 101. The first guide rail 31 is disposed on and parallel to the second surface 211. In other words, the arrangement of the first surface 101, the support base 21, and the second surface 211 eliminates the need for a protrusion on the base 10 of the turning center, thereby reducing the overall volume of the turning center to a certain extent. Furthermore, since the second surface 211 is inclined to the first surface 101, when there is chip on the second surface 211, the chip can fall off under the action of gravity, thereby avoiding the accumulation of chip on the turning center to a certain extent.

[0049] Furthermore, the angle A between the plane containing the first surface 101 and the plane containing the second surface 211 satisfies the relationship: 35°≤A≤70°.

[0050] Furthermore, since the second surface 211 is inclined to the first surface 101, this means that the support 21 has a quasi-triangular prism design, which can improve the structural strength of the support 21 to a certain extent and avoid the problem of the support 21 being too high along the turning center, resulting in an excessively large overall volume of the turning center. Meanwhile, in this embodiment, the angle A between the plane containing the first surface 101 and the plane containing the second surface 211 satisfies the relationship: 35°≤A≤70°. It is clear that if the angle A is less than 35°, the inclination of the second surface 211 is too low, which may cause the chips on the support 21 to not fall off under the action of gravity, potentially causing chip accumulation on the support 21 and affecting the motion accuracy of the first guide rail 31. Additionally, if the inclination of the first surface 101 is too low, the maximum height of the support 21 may also be too low, potentially affecting the highest position that the tool holder 22 can reach in the height direction of the turning center. If the included angle A is greater than 70°, the height of the support 21 along the turning center may be too high. This would result in an excessively large overall volume of the turning center and a certain degree of reduction in the rigidity of the support 21. In this embodiment, the value of A can be 35°, 40°, 45°, 50°, 55°, 60°, 65°, or 70°.

[0051] Furthermore, the guide rail assembly 30 includes a second guide rail 32 and a third guide rail 33. The second guide rail 32 is disposed on the first surface 101, and the second guide rail 32 is along a first direction (as shown in the attached figure). Figure 3 Extending in the X direction. The third guide rail 33 is located on top of the second guide rail 32, and the support base 21 is located on top of the third guide rail 33. The third guide rail 33 extends along the second direction (as shown in the attached figure). Figure 3 The first direction extends in the Y direction, and the second direction is perpendicular to the first direction and the height direction of the turning center.

[0052] Specifically, when the third guide rail 33 slides on the second guide rail 32, the third guide rail 33 drives the support 21 to reciprocate along the first direction. After the support 21 slides on the third guide rail 33, the support 21 can reciprocate in the second direction. In this embodiment, the advantage of stacking the second guide rail 32 and the third guide rail 33 is that it can reduce the overall volume of the turning center to a certain extent, and the structure is simple and easy to manufacture.

[0053] Furthermore, the first guide rail 31 is along a third direction (as shown in the attached diagram). Figure 6 The direction extends (M direction). Within the projection of the turning center along the height direction, the third direction is parallel to the second direction, and / or the third direction is perpendicular to the first direction.

[0054] It is worth mentioning that "within the projection of the height direction of the turning center, the third direction is parallel to the second direction, and / or the third direction is perpendicular to the first direction" refers to one of the following three cases: within the projection of the height direction of the turning center, the third direction is parallel to the second direction; within the projection of the height direction of the turning center, the third direction is perpendicular to the first direction; and within the projection of the height direction of the turning center, the third direction is both parallel to the second direction and perpendicular to the first direction.

[0055] The configuration of this embodiment allows the tool holder 22 to reciprocate along the first guide rail 31 in a third direction. In other words, the arrangement of the first guide rail 31 and the third guide rail 33 allows the tool holder 22 to adjust its position in the height direction by adjusting its position in the third and second directions. Compared to the case where the third direction is parallel to the height direction, this design can reduce the volume of the support 21 to a certain extent, avoiding the problem of the support 21 being too long along the height direction of the turning center, thus reducing the structural strength of the support 21 and causing the overall volume of the turning center to be too large. Furthermore, when the third direction is parallel to the second direction and perpendicular to the first direction within the projection of the turning center's height direction, this means that after the tool holder 22 moves along the third direction on the first guide rail 31, it will not generate overly complex movements in the second or first direction, thus preventing difficulty in controlling the tool holder 22 to the designated position. That is, after the tool holder 22 moves in the third direction, the motion projection of the tool holder only exists in the height and second directions.

[0056] In some embodiments, a fourth guide rail 34 is further disposed on the first surface 101. The fourth guide rail 34 and the guide rail assembly 30 are spaced apart along a second direction. The fourth guide rail 34 is parallel to the first surface 101 and extends along a first direction. The second surface 211 is inclined in a direction close to the fourth guide rail 34. The turning center also includes a spindle assembly 40, which is at least partially slidably disposed on the fourth guide rail 34.

[0057] Specifically, the spindle assembly 40 can be used to fix the workpiece to be processed. When part of the spindle assembly 40 slides on the fourth guide rail 34, the spindle assembly 40 can adjust the fixed position of the workpiece to be processed. In addition, compared with the prior art, in this embodiment, the fourth guide rail 34 is parallel to the first surface 101. One advantage of this setting is that the component of the downward pressure generated by the spindle assembly 40 on the fourth guide rail 34 will not act in any direction other than the height direction of the turning center. This avoids the problem that the pressure generated by the spindle assembly 40 on the fourth guide rail 34 is an eccentric pressure, which would cause excessive internal stress at the contact part between the spindle assembly 40 and the fourth guide rail 34, leading to easy damage to the fourth guide rail 34 or the spindle assembly 40.

[0058] It is understandable that, in this embodiment, in order to improve the service life of the spindle assembly 40 and the fourth guide rail 34, the fourth guide rail 34 is parallel to the first surface 101. This makes it possible for chips to easily accumulate on the fourth guide rail 34, thereby affecting the fourth guide rail 34. To prevent the above situation from occurring, in some embodiments, the turning center also includes a protective part 60, which at least covers the outer periphery of the fourth guide rail 34. The top of the protective part 60 has a third surface 601, which is inclined to the first surface 101.

[0059] Thanks to the presence of the protective part 60, chips from the turning center are less likely to enter the fourth guide rail 34 and affect it. Simultaneously, because the protective part 60 has a third surface 601 that is inclined relative to the first surface 101, chips falling onto the protective part 60 easily slide off the third surface 601 under gravity, preventing chip accumulation on the top of the protective part 60. In some embodiments, the third surface 601 is inclined towards the outside of the base 10, meaning that chips falling onto the third surface 601 easily fall directly to the outside of the base 10 after sliding off. In some embodiments, the protective part 60 includes a protective telescopic cover, and the first guide rail 31, the second guide rail 32, and the third guide rail 33 are all provided with protective telescopic covers. Of course, the protective part 60 can also be a protective shell; this application does not specifically limit this.

[0060] In some embodiments, the spindle assembly 40 includes a first spindle 41 and a second spindle 42. The first spindle 41 is fixed to the base 10 and extends along the height direction of the turning center, and is located outside the fourth guide rail 34. The second spindle 42 is slidably disposed on the fourth guide rail 34 and extends along the height direction of the turning center. The direction from the first spindle 41 to the second spindle 42 is parallel to a first direction.

[0061] Specifically, when processing a workpiece, if the workpiece is a shaft, the first spindle 41 and the second spindle 42 can respectively fix the two ends of the workpiece along the axial direction. Since the first spindle 41 is fixed to the base 10, and the second spindle 42 is slidably mounted on the fourth guide rail 34, the position of the second spindle 42 on the fourth guide rail 34 can be adjusted so that the first spindle 41 and the second spindle 42 can simultaneously fix the shaft-type workpiece. Furthermore, in this embodiment, the first spindle 41 is located outside the fourth guide rail 34, and the first spindle 41, the fourth guide rail 34, and the second spindle 42 are located on the same straight line in the projection of their height directions. The cooperation of the first spindle 41 and the second spindle 42 can be used for loading and unloading workpieces; that is, the second spindle 42 can transport the workpiece to the first spindle 41, or transport the workpiece processed on the first spindle 41 to another location. In addition, both the first spindle 41 and the second spindle 42 extend along the height direction of the turning center, thereby reducing the bias pressure exerted by the first spindle 41 on the base 10 and the bias pressure exerted by the second spindle 42 on the fourth guide rail 34 to a certain extent, thus improving the service life of the turning center.

[0062] In some embodiments, the turning center also includes a chip conveyor 50, which is disposed on the outside of the base 10. The top of the chip conveyor 50 has a chip removal section 501, and along the height direction of the turning center, the chip removal section 501 is lower than or equal to the first surface 101.

[0063] With this configuration, when chips fall from the first surface 101 to the top of the chip conveyor 50, the chip conveyor 50's chip removal section 501 can transport the chips. In practice, during machining in a turning center, chips generated on the workpiece fall onto the protective telescopic covers on the first, second, third, or fourth tracks. Due to the inclined arrangement of the third surface 601 on the protective telescopic cover, the chips slide down under the influence of gravity, eventually falling from the protective telescopic cover on the third track or the first surface 101 onto the chip removal section 501, allowing the chip conveyor 50 to transport and collect the chips. In some embodiments, the chip conveyor 50 can be a magnetic chip conveyor 50, in which case the chip removal section 501 includes a magnetic conveyor belt. In some embodiments, the chip removal section 501 can also include a chip transport trough.

[0064] Furthermore, a confluence channel 102 is provided on the top of the base 10. The bottom surface of the confluence channel 102 is inclined. A first channel 1021 and a second channel 1022 are provided on the side wall of the confluence channel 102. The first channel 1021 extends from the confluence channel 102 to the first surface 101. The confluence channel 102 is connected to the chip removal part 501 through the second channel 1022.

[0065] Specifically, when cooling water or other liquid is present on the first surface 101, due to the inclined bottom surface of the manifold 102, the cooling water or other liquid can more easily enter the manifold 102 through the first channel 1021 and eventually flow to the chip removal section 501 through the second channel 1022. Additionally, during the flow of cooling water or other liquid, the cooling water or other liquid can carry chips on the first surface 101, thereby guiding some of the chips to the chip removal section 501. In some embodiments, the chip removal section 501 has the ability to separate chips from cooling water, thereby collecting the cooling water for reuse and reducing the operating cost of the turning center. In some embodiments, the bottom surface of the manifold 102 gradually increases in depth along the direction close to the first channel 1021 and the second channel 1022, so that the liquid on the first surface 101 can flow into the manifold 102.

[0066] In some embodiments, the turning center further includes a guide section 70, with a first end of the guide section 70 disposed in the second channel 1022 and a second end of the guide section 70 extending to the chip removal section 501. Specifically, the design of the guide section 70 can, to a certain extent, improve the accuracy of cooling water or chips entering the chip removal section 501, and prevent cooling water or chips from splashing from the second channel 1022 to the chip conveyor 50 or the outside of the turning center.

[0067] In some embodiments, the first guide rail 31 includes a first hydrostatic guide rail, the second guide rail 32 includes a second hydrostatic guide rail, the third guide rail 33 includes a third hydrostatic guide rail, and the fourth guide rail 34 includes a fourth hydrostatic guide rail. When hydraulic oil leaks from the hydrostatic guide rails, some of the leaked hydraulic oil can flow into the chip removal section 501 under the action of the manifold 102, thereby preventing the leaked hydraulic oil from contaminating the turning center and causing a decrease in the machining stability and accuracy of the turning center. In addition, the hydrostatic guide rails improve the accuracy, stability, and load-bearing capacity of the turning center to a certain extent, thereby improving the machining accuracy of the workpiece.

[0068] As attached Figures 7 to 10 As shown, in some embodiments, the first hydrostatic guide rail includes a track 311, a slider 312, and a support platform 313. A limiting groove 3111 is formed on the track 311 along its length, and the depth of the limiting groove 3111 is along the width direction of the track 311 (as shown in the attached figure). Figure 7 Extending in the M2 direction. The slider 312 is slidably disposed in the limiting groove 3111. The slider 312 has an upper surface 3121, on which multiple upper static pressure cavities 31211 are formed. These multiple upper static pressure cavities 31211 extend along the length direction of the slider 312 (as shown in the attached figure). Figure 7 The upper static pressure chambers 31211 are spaced apart in the M1 direction, and each upper static pressure chamber 31211 is located between the limiting groove 3111 and the slider 312. The support platform 313 is fixed to the top of the slider 312. The limiting groove 3111 has a first side wall 3112 opposite to the upper surface 3121. A first oil drain channel 31213 is provided between the first side wall 3112 and the upper surface 3121. The first oil drain channel 31213 extends along the length of the slider 312 and is located on the side of the upper static pressure chamber 31211 away from the limiting groove 3111. The side of the upper static pressure chamber 31211 closest to the first oil drain channel 31213 has a first side wall 31212. The vertical distance from the first side wall 31212 to the first oil drain channel 31213 of each upper static pressure chamber 31211 is the same. The tool holder 22 is fixed to the support platform 313, and the slider 313 slides on the track 311 to drive the support platform 313 to slide.

[0069] This configuration ensures that the width of the sealing edge between the first side wall 3112 and the first oil drain channel 31213 of each upper hydrostatic chamber 31211 is the same. This results in the load force exerted on the slider 312 by the sealing edge of each upper hydrostatic chamber 31211 being almost identical, thus guaranteeing the operational stability of the first hydrostatic guide rail. In other words, due to the design of the first oil drain channel 31213, when oil reaches the first oil drain channel 31213, the oil flows away through the first oil drain channel 31213 without forming an oil film, thereby ensuring that the width of the sealing edge between the first side wall 3112 and the first oil drain channel 31213 is the same.

[0070] In addition, the slider 312 also has a lower surface 3122, on which a plurality of lower static pressure cavities 31221 are provided. The plurality of lower static pressure cavities 31221 are spaced apart along the length direction of the slider 312, and each lower static pressure cavity 31221 is located between the limiting groove 3111 and the slider 312. The limiting groove 3111 also has a second side wall 3113 disposed opposite to the lower surface 3122. A second oil drain channel 31223 is disposed between the second side wall 3113 and the upper surface 3121. The second oil drain channel 31223 extends along the length direction of the slider 312 and is located on the side of the lower static pressure chamber 31221 away from the limiting groove 3111. The side of the lower static pressure chamber 31221 close to the second oil drain channel 31223 has a second side wall 31222. The vertical distance from the second side wall 31222 to the second oil drain channel 31223 of each lower static pressure chamber 31221 is the same.

[0071] Similarly, this arrangement ensures that the width of the sealing edge between the second sidewall 31222 of each lower static pressure chamber 31221 and the second oil discharge channel 31223 is the same, so that the bearing force applied to the slider 312 by each sealing edge is almost the same, thereby avoiding the problem of uneven force on the slider 312 and unstable movement of the slider 312.

[0072] In summary, the turning center of this application has at least the following beneficial effects:

[0073] (1) Through the design of the first surface 101, the guide rail group 30, the support seat 21, the second surface 211, the first guide rail 31 and the tool holder 22, the turning center of this application reduces the overall volume of the turning center to a certain extent compared with the prior art.

[0074] (2) The stacked design of the second guide rail 32 and the third guide rail 33 allows the tool holder 22 to be adjusted in the first and second directions. The stacked design can also reduce the overall volume of the turning center to a certain extent.

[0075] (3) The design of the protective part 60 avoids the chip material generated during machining at the turning center from affecting each guide rail, thereby affecting the stability and accuracy of the guide rail.

[0076] (4) The chip conveyor 50, chip conveying unit 501 and confluence channel 102 are provided to collect or transport chips and cooling water on the turning center so that the chips or cooling water can be reused.

[0077] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0078] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0079] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A turning center, characterized in that, include: The base (10) has a first surface (101) on its top, the first surface (101) being perpendicular to the height direction of the turning center, and a guide rail assembly (30) is provided on the first surface (101), the extension direction of the guide rail assembly (30) being parallel to the first surface (101). A tool holder assembly (20) includes a tool holder (22) and a support base (21). The support base (21) is slidably disposed on the guide rail assembly (30). The top of the support base (21) has a second surface (211) that is inclined to the first surface (101). A first guide rail (31) is disposed on the second surface (211) and the extension direction of the first guide rail (31) is parallel to the second surface (211). The tool holder (22) is slidably disposed on the first guide rail (31).

2. The turning center according to claim 1, characterized in that, The angle A between the plane containing the first surface (101) and the plane containing the second surface (211) satisfies the following relationship: 35°≤A≤70°.

3. The turning center according to claim 1, characterized in that, The first guide rail includes: The track (311) has a limiting groove (3111) provided along the length direction of the track (311), and the depth of the limiting groove (3111) extends along the width direction of the track (311). A slider (312) is slidably disposed in the limiting groove (3111). The slider (312) has an upper surface (3121) on which a plurality of upper static pressure cavities (31211) are formed. The plurality of upper static pressure cavities (31211) are spaced apart along the length direction of the slider (312), and each upper static pressure cavity (31211) is located between the limiting groove (3111) and the slider (312). A support platform (313) is fixed to the top of the slider (312); The limiting groove (3111) has a first side wall (3112) opposite to the upper surface (3121). A first oil drain channel (31213) is provided between the first side wall (3112) and the upper surface (3121). The first oil drain channel (31213) extends along the length direction of the slider (312) and is located on the side of the upper static pressure chamber (31211) away from the limiting groove (3111). The side of the upper static pressure chamber (31211) close to the first oil drain channel (31213) has a first side wall (31212). The vertical distance from the first side wall (31212) to the first oil drain channel (31213) of each upper static pressure chamber (31211) is the same.

4. The turning center according to claim 1, characterized in that, The guide rail assembly (30) includes: A second guide rail (32) is disposed on the first surface (101) and extends along a first direction; The third guide rail (33) is disposed on the top of the second guide rail (32), and the support seat (21) is disposed on the top of the third guide rail (33). The third guide rail (33) extends along a second direction, which is perpendicular to the first direction and the height direction of the turning center.

5. The turning center according to claim 4, characterized in that, The first guide rail (31) extends in the third direction; Wherein, within the projection of the turning center in the height direction, the third direction is parallel to the second direction, and / or the third direction is perpendicular to the first direction.

6. The turning center according to claim 1, characterized in that, A fourth guide rail (34) is also provided on the first surface (101). The fourth guide rail (34) and the guide rail group (30) are spaced apart along the second direction. The fourth guide rail (34) is parallel to the first surface (101). The fourth guide rail (34) extends along the first direction. The second surface (211) is inclined in the direction close to the fourth guide rail (34). The turning center also includes a spindle assembly (40), which is at least partially slidably disposed on the fourth guide rail (34).

7. The turning center according to claim 6, characterized in that, The turning center also includes a protective part (60), which covers at least the outer periphery of the fourth guide rail (34). The top of the protective part (60) has a third surface (601), which is inclined to the first surface (101).

8. The turning center according to claim 6, characterized in that, The spindle assembly (40) includes: The first spindle (41) is fixed to the base (10) and extends along the height direction of the turning center, and the first spindle (41) is located outside the fourth guide rail (34); The second spindle (42) is slidably disposed on the fourth guide rail (34) and extends along the height direction of the turning center; The direction from the first main shaft (41) to the second main shaft (42) is parallel to the first direction.

9. The turning center according to any one of claims 1 to 8, characterized in that, The turning center also includes a chip conveyor (50), which is located on the outside of the base (10). The chip conveyor (50) has a chip removal section (501) on its top. Along the height direction of the turning center, the chip removal section (501) is lower than or equal to the first surface (101).

10. The turning center according to claim 9, characterized in that, The top of the base (10) is provided with a confluence groove (102), the bottom surface of the confluence groove (102) is inclined, and the side wall of the confluence groove (102) is provided with a first channel (1021) and a second channel (1022). The first channel (1021) extends from the confluence groove (102) to the first surface (101), and the confluence groove (102) is connected to the chip removal part (501) through the second channel (1022).

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