Ram cooling structure and machining tool
By setting up a cooling oil circuit and gear box in the sliding pillow cooling structure, the cooling oil cycle absorbs the heat of the sliding pillow body, solving the problem of decreasing accuracy of the sliding pillow during long-term work, and achieving efficient cooling and improvement of the sliding pillow.
Patent Information
- Application Number
- CN202421004537.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The sliding pillow is difficult to maintain stable accuracy due to heat deformation during long working hours.
A sliding pillow cooling structure is designed, by providing first and second guide rails on both sides of the sliding pillow body and cooling oil paths are arranged inside, so that the cooling oil cycle absorbs heat from the sliding pillow body, reduces temperature and reduces thermal deformation. The structure includes a plurality of cooling branches and gear boxes, and the cooling oil is connected through a conduit to ensure circulation and supply of cooling oil and improve the accuracy of the sliding pillow.
The heat of the sliding pillow body is absorbed through the circulation of cooling oil, reducing temperature, reducing thermal deformation, improving the accuracy of the sliding pillow working for a long time, and ensuring the stability and accuracy of the sliding pillow during long-term operation.
Smart Images
Figure CN222327320U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of numerically controlled machine tool equipment, and in particular to a ram cooling structure and a processing machine tool. Background Art
[0002] As an important structural component in a machine tool, the ram has high requirements for precision. However, during the operation of the ram, a lot of heat is generated, which causes thermal deformation of the ram, making it difficult for the ram to maintain stable precision during long-term operation. In view of this, how to improve the precision of the ram during long-term operation has become an urgent problem to be solved. Utility Model Content
[0003] The main technical problem solved by the present application is to provide a slide cooling structure and a processing machine tool, which can improve the transmission efficiency of the lathe spindle.
[0004] In order to solve the above-mentioned technical problems, the first aspect of the present application provides a slide block cooling structure, including: a slide block body; a first guide rail and a second guide rail, which are respectively arranged on both sides of the slide block body; wherein a first cooling oil circuit is arranged inside the first guide rail, and a second cooling oil circuit is arranged inside the second guide rail, the first cooling oil circuit and the second cooling oil circuit are used to contain cooling oil, and the cooling oil is used to absorb at least part of the heat of the slide block body.
[0005] The first guide rail is provided with a first oil inlet hole and a first oil outlet hole of the first cooling oil circuit on the top surface, the second guide rail is provided with a second oil inlet hole and a second oil outlet hole of the second cooling oil circuit on the top surface, and the first oil outlet hole is connected to the second oil inlet hole through a conduit; the cooling oil is injected into the first cooling oil circuit, the conduit and the second cooling oil circuit from the first oil inlet hole, and flows out from the second oil outlet hole.
[0006] Among them, the first cooling oil circuit includes a plurality of first cooling branches connected in sequence from the first oil inlet hole to the first oil outlet hole, and the plurality of first cooling branches extend from the top surface to the bottom of the first guide rail; the second cooling oil circuit includes a plurality of second cooling branches connected in sequence from the second oil inlet hole to the second oil outlet hole, and the plurality of second cooling branches extend from the top surface to the bottom of the second guide rail.
[0007] Wherein, the ram cooling structure also includes: a gear box, which is arranged above the interior of the ram body, including a bearing group, a bearing, an upper bearing seat and a plurality of gears; wherein, a first cavity is provided inside the gear box, and the bearings and the plurality of gears are placed in the first cavity; a plurality of oil inlet holes and a plurality of oil inlet blocks; wherein, the plurality of oil inlet holes are arranged on the front surface above the exterior of the ram body at the corresponding positions of the first cavity, and the plurality of oil inlet blocks are arranged on the side surface above the exterior of the ram body at the corresponding positions of the first cavity.
[0008] Wherein, the ram cooling structure further includes: an oil outlet block, which is arranged on the external front surface of the ram body and communicates with the second cavity; wherein, the second cavity communicates with the first cavity.
[0009] Wherein, a through hole is arranged between the first cavity and the second cavity.
[0010] Wherein, the slide cooling structure also includes: a third cooling oil circuit, which is arranged at the upper bearing seat; wherein, the outer upper surface of the slide body corresponding to the upper bearing seat is provided with a third oil inlet hole and a third oil outlet hole, and the cooling oil is injected into the third cooling oil circuit from the third oil inlet hole and flows out from the third oil outlet hole.
[0011] Wherein, the ram cooling structure further includes: a main shaft, which is arranged at the bottom of the ram body and is used to support the ram body and realize the movement of the ram body.
[0012] Wherein, the slide cooling structure also includes: a fourth cooling oil circuit, which is arranged at the main shaft; wherein, a fourth oil inlet hole and a fourth oil outlet hole are arranged on the outer front surface of the slide body corresponding to the main shaft, and the cooling oil is injected into the fourth cooling oil circuit from the fourth oil inlet hole and flows out from the fourth oil outlet hole.
[0013] In order to solve the above-mentioned technical problems, the second aspect of the present application provides a processing machine tool, comprising: a machine tool body; the slide cooling structure described in the first aspect above, which is arranged on the machine tool body; an oil cooler, which is arranged on the machine tool body and is located on one side of the slide cooling structure, and is used to provide cooling oil to the slide cooling structure.
[0014] The above scheme, by setting a first cooling oil circuit inside the first guide rail and a second cooling oil circuit inside the second guide rail, circulates the cooling oil on both sides of the ram body to absorb at least part of the heat of the ram body, thereby lowering the temperature of the ram body, reducing the thermal deformation of the ram body, and improving the accuracy of the ram during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:
[0016] Figure 1 It is a structural schematic diagram of an embodiment of the ram cooling structure of the present application;
[0017] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the slide cooling structure of the present application. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0019] In this document, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The term "and / or" is merely a description of an associative relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may indicate three situations: A exists alone, A and B exist at the same time, and B exists alone.
[0020] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0021] The present application provides the following embodiments, and each embodiment is described in detail below.
[0022] See also Figure 1 , Figure 1It is a structural schematic diagram of an embodiment of a ram cooling structure of the present application, wherein the ram cooling structure 10 comprises: a ram body 100, a first guide rail 101 and a second guide rail 102, wherein the first guide rail 101 and the second guide rail 102 are respectively arranged on both sides of the ram body 100, a first cooling oil circuit 103 is arranged inside the first guide rail 101, and a second cooling oil circuit 104 is arranged inside the second guide rail 102, the first cooling oil circuit 103 and the second cooling oil circuit 104 are used to contain cooling oil, and the cooling oil is used to absorb at least part of the heat of the ram body 100.
[0023] Specifically, the first cooling oil circuit 103 provided inside the first guide rail 101 and the second cooling oil circuit 104 provided inside the second guide rail 102 are used to contain cooling oil. When the ram body 100 generates heat during a long period of operation, the cooling oil circulating through the inner side of the guide rail absorbs at least part of the heat of the ram body 100 to lower the temperature of the ram body 100 and reduce the thermal deformation of the ram body 100, thereby improving the accuracy of the ram during long-term operation.
[0024] In some implementation scenarios, an oil cooler (not shown) is disposed outside the ram body 100 to provide cooling oil to the ram body 100. A first oil inlet hole 1030 and a first oil outlet hole 1031 are disposed on the top surface of the first guide rail 101. A second oil inlet hole 1040 and a second oil outlet hole 1041 are disposed on the top surface of the second guide rail 102. The first oil outlet hole 1031 and the second oil inlet hole 1040 are connected by a conduit 105. The cooling oil pumped out by the oil cooler enters from the first oil inlet hole 1030, passes through the first cooling oil circuit 103, the first oil outlet hole 1031, the conduit 105, the second oil inlet hole 1040, the second cooling oil circuit 104, and flows out from the second oil outlet hole 1041 and returns to the oil cooler.
[0025] In some implementation scenarios, an oil cooler is disposed outside the ram body 100 to provide cooling oil to the ram body 100. A first oil inlet hole 1030 and a first oil outlet hole 1031 are disposed on the top surface of the first guide rail 101. The cooling oil pumped out by the oil cooler flows in from the first oil inlet hole 1030, flows out from the first oil outlet hole 1031 after passing through the first cooling oil circuit 103, and returns to the oil cooler. A second oil inlet hole 1040 and a second oil outlet hole 1041 are disposed on the top surface of the second guide rail 102. The cooling oil pumped out by the oil cooler flows in from the second oil inlet hole 1040, flows out from the second oil outlet hole 1041 after passing through the second cooling oil circuit 104, and returns to the oil cooler.
[0026] In some implementation scenarios, the first cooling oil circuit 103 and the second cooling oil circuit 104 are hollowly arranged in the guide rail.
[0027] In some implementation scenarios, pipes are respectively provided inside the first cooling oil circuit 103 and the second cooling oil circuit 104 to reduce the friction of the cooling oil flowing in the guide rail.
[0028] In some implementation scenarios, the first guide rail 101 and the second guide rail 102 respectively protrude from the two side surfaces of the ram body 100 , and the tops of the first guide rail 101 and the second guide rail 102 are higher than the top of the ram body 100 .
[0029] In the above scheme, by setting a first cooling oil circuit 103 inside the first guide rail 101 and a second cooling oil circuit 104 inside the second guide rail 102, the cooling oil circulates on both sides of the ram body 100 to absorb at least part of the heat of the ram body 100, thereby lowering the temperature of the ram body 100, reducing the thermal deformation of the ram body 100, and improving the accuracy of the ram during long-term operation.
[0030] In one embodiment, please continue to refer to Figure 1 The top surface of the first guide rail 101 is provided with a first oil inlet hole 1030 and a first oil outlet hole 1031 of the first cooling oil circuit 103, and the top surface of the second guide rail 102 is provided with a second oil inlet hole 1040 and a second oil outlet hole 1041 of the second cooling oil circuit 104, and the first oil outlet hole 1031 is connected to the second oil inlet hole 1040 through a conduit 105, wherein the cooling oil is injected into the first cooling oil circuit 103, the conduit 105 and the second cooling oil circuit 104 from the first oil inlet hole 1030, and flows out from the second oil outlet hole 1041.
[0031] Specifically, the cooling oil is injected into the first cooling oil circuit 103 from the first oil inlet hole 1030, and passes through the first oil outlet hole 1031, the conduit 105, the second oil inlet hole 1040 and the second cooling oil circuit 104 in sequence, and flows out from the second oil outlet hole 1041 to take away at least part of the heat of the slide body 100 and reduce the temperature of the slide body 100.
[0032] In one implementation scenario, the first cooling oil circuit 103 includes a plurality of first cooling branches (not shown) connected in sequence from the first oil inlet hole 1030 to the first oil outlet hole 1031, and the plurality of first cooling branches extend from the top surface to the bottom of the first guide rail 101. The second cooling oil circuit 104 includes a plurality of second cooling branches (not shown) connected in sequence from the second oil inlet hole 1040 to the second oil outlet hole 1041, and the plurality of second cooling branches extend from the top surface to the bottom of the second guide rail 102.
[0033] Specifically, a plurality of first cooling branches connected in sequence extend from the top surface to the bottom of the first guide rail 101, and a plurality of second cooling branches connected in sequence extend from the top surface to the bottom of the second guide rail 102, so that the cooling oil circulating in the cooling oil circuit can absorb as much heat as possible from both sides of the entire slide body 100, thereby lowering the temperature of the slide body 100 and reducing the thermal deformation of the slide body 100, thereby improving the accuracy of the slide during long-term operation.
[0034] In a specific implementation scenario, the first cooling branch and the second cooling branch are curved sections, so that the contact area between the first cooling oil circuit 103 and the second cooling oil circuit 104 and the slide body 100 can be increased within the limited space inside the guide rail, further improving the heat dissipation efficiency.
[0035] In one embodiment, please combine Figure 1 See also Figure 2 , Figure 2 It is a cross-sectional schematic diagram of an embodiment of the slide cooling structure of the present application, and the slide cooling structure 10 also includes: a gear box 106, a plurality of oil inlet holes 107 and a plurality of oil inlet blocks 108, wherein the gear box 106 is arranged above the interior of the slide body 100, and includes a bearing group 1060, a bearing 1061, an upper bearing seat 1062 and a plurality of gears 1603, and a first cavity 1300 is provided inside the gear box 106, and the bearing 1061 and the plurality of gears 1603 are placed in the first cavity 1300, and the plurality of oil inlet holes 107 are arranged on the front surface above the exterior of the slide body 100 at the corresponding position of the first cavity 1300, and the plurality of oil inlet blocks 108 are arranged on the side surface above the exterior of the slide body 100 at the corresponding position of the first cavity 1300.
[0036] Specifically, cooling oil is injected from multiple oil inlet holes 107 and oil inlet blocks 108 to flow into the bearing group 1060, bearing 1061, multiple gears 1603, and concentrated into the first cavity 1300. The oil inlet block 108 can be opened or closed as needed to control the supply amount of cooling oil, thereby ensuring that the various components of the gear 1603 group are properly lubricated, reducing friction and wear, and maintaining the normal operation of the slide.
[0037] In some implementation scenarios, the plurality of gears 1603 include a driving gear and a driven gear. The driven gear is disposed on the main shaft 110. When the gear box 106 starts to work, the driving gear rotates in the first cavity 1300 and drives the driven gear to rotate, thereby driving the main shaft 110 to rotate together.
[0038] In one implementation scenario, the ram cooling structure 10 further includes an oil outlet block 109 , which is disposed on the external front surface of the ram body 100 and communicates with the second cavity 1301 , wherein the second cavity 1301 communicates with the first cavity 1300 .
[0039] Specifically, the cooling oil flows from the first cavity 1300 to the second cavity 1301 and flows out through the oil outlet block 109. The oil outlet block 109 can control the flow of the cooling oil, thereby ensuring that the various components of the gearbox 106 are properly lubricated, reducing friction and wear, and maintaining the normal operation of the slide.
[0040] In some implementation scenarios, the oil outlet block 109 is composed of an adjustable valve, and the flow of the cooling oil is controlled by changing the opening of the valve. Specifically, when the valve is opened, the cooling oil can flow freely through the oil outlet block 109, and when the valve is slowly closed, the flow of the cooling oil is restricted or completely stopped.
[0041] In one implementation scenario, a through hole (not shown) is disposed between the first cavity 1300 and the second cavity 1301 .
[0042] Specifically, the cooling oil flows from the first cavity 1300 into the second cavity 1301 through the through hole.
[0043] In one embodiment, the slide cooling structure 10 also includes a third cooling oil circuit (not shown), which is arranged at the upper bearing seat 1062, wherein the outer upper surface of the slide body 100 corresponding to the upper bearing seat 1062 is provided with a third oil inlet hole 1100 and a third oil outlet hole 1101, and the cooling oil is injected into the third cooling oil circuit from the third oil inlet hole 1100 and flows out from the third oil outlet hole 1101.
[0044] Specifically, the cooling oil is injected into the third cooling oil circuit from the third oil inlet hole 1100 , thereby absorbing the heat generated by the upper bearing seat 1062 during operation, and flows out from the third oil outlet hole 1101 .
[0045] In one embodiment, please continue to refer to Figure 2 The ram cooling structure 10 further includes a main shaft 110 , which is disposed at the bottom of the ram body 100 and is used to support the ram body 100 and realize the movement of the ram body 100 .
[0046] In some implementation scenarios, the main shaft 110 includes a top end, a connecting portion and a tail end. A main shaft bearing and a driven gear are provided on the top end. The main shaft bearing is used to ensure stable rotation of the main shaft 110. The driven gear is used to transmit torque. The connecting portion is used to connect the top end and the tail end of the main shaft 110. The tail end of the main shaft 110 mainly plays a supporting role to ensure that the slide body 100 can move up and down stably.
[0047] In one implementation scenario, the slide cooling structure 10 also includes a fourth cooling oil circuit (not shown), which is arranged at the main shaft 110, wherein a fourth oil inlet hole 1200 and a fourth oil outlet hole 1201 are arranged on the outer front surface of the slide body 100 corresponding to the main shaft 110, and the cooling oil is injected into the fourth cooling oil circuit from the fourth oil inlet hole 1200 and flows out from the fourth oil outlet hole 1201.
[0048] Specifically, the cooling oil is injected into the fourth cooling oil path from the fourth oil inlet hole 1200 , thereby absorbing the heat generated when the main shaft 110 rotates, and flows out from the fourth oil outlet hole 1201 .
[0049] The present application also provides a processing machine tool, comprising: a machine tool body, a slide cooling structure 10 of any of the above-mentioned embodiments, and an oil cooler, wherein the slide cooling structure 10 is arranged on the machine tool body, and the oil cooler is arranged on the machine tool body and located outside the slide cooling structure 10, and is used to provide cooling oil to the slide cooling structure 10.
[0050] Specifically, the cooling oil provided by the oil cooler is circulated inside the ram body 100 through the ram cooling structure 10 to reduce the temperature of the ram during long-term operation, reduce thermal deformation of the ram body 100, and thus improve the accuracy of the ram during long-term operation.
[0051] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A ram cooling structure, characterized in that: include: Ram body; A first guide rail and a second guide rail are respectively arranged on both sides of the slide body; wherein a first cooling oil circuit is arranged inside the first guide rail, and a second cooling oil circuit is arranged inside the second guide rail, and the first cooling oil circuit and the second cooling oil circuit are used to contain cooling oil, and the cooling oil is used to absorb at least part of the heat of the slide body.
2. The ram cooling structure according to claim 1, characterized in that: The top surface of the first guide rail is provided with a first oil inlet hole and a first oil outlet hole of the first cooling oil circuit, and the top surface of the second guide rail is provided with a second oil inlet hole and a second oil outlet hole of the second cooling oil circuit, and the first oil outlet hole is connected to the second oil inlet hole through a conduit; wherein the cooling oil is injected into the first cooling oil circuit, the conduit and the second cooling oil circuit from the first oil inlet hole, and flows out from the second oil outlet hole.
3. The ram cooling structure according to claim 2, characterized in that: The first cooling oil circuit includes a plurality of first cooling branches sequentially connected from the first oil inlet hole to the first oil outlet hole, and the plurality of first cooling branches extend from the top surface to the bottom of the first guide rail; The second cooling oil circuit includes a plurality of second cooling branches sequentially connected from the second oil inlet hole to the second oil outlet hole, and the plurality of second cooling branches extend from the top surface to the bottom of the second guide rail.
4. The ram cooling structure according to claim 1, characterized in that: Also includes: A gear box is arranged above the interior of the ram body, and includes a bearing group, a bearing, an upper bearing seat and a plurality of gears; wherein a first cavity is provided inside the gear box, and the bearing and the plurality of gears are placed in the first cavity; Multiple oil inlet holes and multiple oil inlet blocks; wherein, the multiple oil inlet holes are arranged on the front surface above the outside of the slide body at the corresponding position of the first cavity, and the multiple oil inlet blocks are arranged on the side surface above the outside of the slide body at the corresponding position of the first cavity.
5. The ram cooling structure according to claim 4, characterized in that: Also includes: The oil outlet block is arranged on the external positive surface of the ram body and communicates with the second cavity; wherein the second cavity communicates with the first cavity.
6. The ram cooling structure according to claim 5, characterized in that: A through hole is provided between the first cavity and the second cavity.
7. The ram cooling structure according to claim 4, characterized in that: Also includes: The third cooling oil circuit is arranged at the upper bearing seat; wherein, the outer upper surface of the slide body corresponding to the upper bearing seat is provided with a third oil inlet hole and a third oil outlet hole, and the cooling oil is injected into the third cooling oil circuit from the third oil inlet hole and flows out from the third oil outlet hole.
8. The ram cooling structure according to claim 1, characterized in that: Also includes: The main shaft is arranged at the bottom of the ram body and is used to support the ram body and realize the movement of the ram body.
9. The ram cooling structure according to claim 8, characterized in that: Also includes: A fourth cooling oil circuit is arranged at the main shaft; wherein a fourth oil inlet hole and a fourth oil outlet hole are arranged on the outer front surface of the slide body corresponding to the main shaft, and the cooling oil is injected into the fourth cooling oil circuit from the fourth oil inlet hole and flows out from the fourth oil outlet hole.
10. A processing machine tool, characterized in that: include: Machine tool body; The ram cooling structure according to any one of claims 1 to 9 is arranged on the machine tool body; The oil cooler is arranged on the machine tool body and located at one side of the ram cooling structure, and is used for providing cooling oil to the ram cooling structure.