Lead screw cooling system

Abstract

The invention discloses a lead screw cooling system which comprises a lead screw mechanism, a nut cooling sleeve, a fixed end bearing seat, a motor end bearing seat and a motor cushion block, the nut cooling sleeve comprises a first liquid cooling flow channel, the fixed end bearing seat comprises a second liquid cooling flow channel, the motor end bearing seat comprises a third liquid cooling flow channel, and the motor cushion block comprises a fourth liquid cooling flow channel. The first liquid cooling flow channel is connected with the second liquid cooling flow channel, the third liquid cooling flow channel and the fourth liquid cooling flow channel in parallel. Rapid cooling of the lead screw body can be achieved through the nut cooling sleeve, the fixed end bearing seat and the motor end bearing seat, deformation of the lead screw in the machining process is avoided, the machining precision of the lead screw can be improved accordingly, heating of the motor can be cooled through the motor cushion block, and the situation that the machining precision of the lead screw is affected by heating of the motor is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of screw rod cooling, and more specifically, to a screw rod cooling system. Background Art

[0002] The ball screw pair is a high-precision, high-stability transmission device. However, in some high-precision equipment, when working for a long time, the screw will stretch to a certain extent due to the thermal expansion and contraction of the screw, which will affect the operating accuracy of the ball screw pair.

[0003] The screw cooling system is a device used to control the working temperature of the screw. In many high-precision mechanical equipment, the running accuracy of the screw nut is crucial to the overall performance of the equipment, and temperature changes will significantly affect the accuracy of the screw nut. The screw cooling system uses cooling media to remove the heat generated by the operation of the screw nut, thereby stabilizing the temperature of the screw nut.

[0004] The existing screw cooling system usually makes the screw into a hollow screw, and cools it by passing coolant into the screw. For example, application number 202410565848.2 discloses a screw constant temperature cooling system, including a screw assembly, a drive motor and a liquid cooler; the screw assembly includes a screw and a screw nut rotatably sleeved on the outside of the screw, and the screw is provided with a screw through hole along the axial direction; the drive motor includes a motor shaft, the motor shaft passes through the drive motor, and the motor shaft is provided with a shaft through hole along the axial direction; the screw is sealed and connected to the motor shaft, and the screw through hole is connected to the shaft through hole; the liquid cooler is used to make the coolant flow through the screw through hole and the shaft through hole. The liquid cooler can make the coolant flow through the screw through hole and the shaft through hole, taking away the heat generated by the high-speed rotation of the motor and the heat generated by the friction between the screw nut and the screw, so that the screw is kept in a constant temperature state.

[0005] Since the screw needs to rotate during operation, the coolant circulation pipeline needs to be rotationally sealed with the screw, which increases the overall manufacturing difficulty of the device and greatly increases the service life and manufacturing cost.

[0006] Therefore, the prior art needs to be improved. Summary of the invention

[0007] The purpose of the present application is to provide a screw cooling system, aiming to solve the technical problem in the prior art of how to reduce the influence of the screw's thermal expansion and contraction on the screw's precision.

[0008] To achieve the above purpose, the technical solution adopted in this application is:

[0009] The present application provides a screw cooling system, which includes:

[0010] A screw mechanism, the screw mechanism comprising a screw body, a screw nut, a screw motor, a screw motor end and a screw fixed end, one end of the screw body is rotatably connected to the screw motor end, and the other end is rotatably connected to the screw fixed end, the screw nut is mounted on the screw body, and the screw motor is drivingly connected to the screw body;

[0011] A screw nut cooling sleeve, the screw nut cooling sleeve comprising a first liquid cooling channel, the screw nut cooling sleeve is sleeved on the screw nut, and the first liquid cooling channel is used to cool the screw nut;

[0012] A fixed end bearing seat, the fixed end bearing seat comprising a second liquid cooling channel, the fixed end bearing seat is mounted on the screw fixed end, and the second liquid cooling channel is used to cool the screw fixed end;

[0013] A motor end bearing seat, the motor end bearing seat comprising a third liquid cooling channel, the motor end bearing seat is mounted on the screw motor end, and the third liquid cooling channel is used to cool the screw motor end;

[0014] A motor block, wherein the motor block includes a fourth liquid-cooling channel, the motor block is connected to the lead screw motor, the fourth liquid-cooling channel is used to cool the lead screw motor, and the first liquid-cooling channel is respectively connected in parallel with the second liquid-cooling channel, the third liquid-cooling channel and the fourth liquid-cooling channel.

[0015] In one embodiment, the nut cooling sleeve further comprises:

[0016] A first cooling integrated shell, wherein the first liquid cooling channel is provided in the first cooling integrated shell, the first cooling integrated shell defines a first hollow cavity, the first hollow cavity is used to embed the screw nut, and the first cooling integrated shell has an opening, and the opening runs through the entire first cooling integrated shell along the axial direction of the first cooling integrated shell;

[0017] Two fastening parts, the two fastening parts are respectively located on both sides of the opening, and the two fastening parts are used to close the opening;

[0018] A first liquid inlet, the first liquid inlet is arranged in the first cooling integrated housing, and the first liquid inlet is used to communicate with the first liquid cooling channel;

[0019] A first liquid outlet is provided on the first cooling integrated shell, and the first liquid outlet is used to communicate with the first liquid cooling channel.

[0020] In one embodiment, the first liquid-cooling channel includes a left liquid-cooling channel and a right liquid-cooling channel connected to the left liquid-cooling channel, the left liquid-cooling channel is located on the left side of the first cooling integrated shell, and the right liquid-cooling channel is located on the right side of the first cooling integrated shell.

[0021] In one embodiment, the left liquid-cooling channel includes a plurality of S-shaped channels connected in sequence; the right liquid-cooling channel includes a plurality of S-shaped channels connected in sequence.

[0022] In one embodiment, the fastening portion comprises:

[0023] A fastening body, the fastening body extending radially outward along the first cooling integrated shell;

[0024] A first mounting hole, the first mounting hole is opened in the fastening body, and the first mounting hole is used to be fixedly connected with a bolt to close the opening;

[0025] A gradual connection portion is connected to the fastening body and the first cooling integrated shell, and a cross-sectional size of the gradual connection portion gradually increases from the first cooling integrated shell to the opening side.

[0026] In one embodiment, the fixed end bearing seat further comprises:

[0027] A second cooling integrated shell, wherein the second cooling integrated shell defines a second hollow cavity, the second hollow cavity is used to connect the bearing of the fixed end of the screw rod, and a second liquid cooling channel surrounding the second hollow cavity is provided in the second cooling integrated shell;

[0028] A second mounting portion, the second mounting portion is formed by extending outward from the second cooling integrated housing, and the second mounting portion is provided with a plurality of second mounting holes;

[0029] a second liquid inlet, the second liquid inlet being disposed on the second cooling integrated housing, the second liquid inlet being used to communicate with the second liquid cooling channel;

[0030] A second liquid outlet is provided on the second cooling integrated shell, and the second liquid outlet is used to communicate with the second liquid cooling channel.

[0031] In one embodiment, the motor end bearing seat further includes:

[0032] A third cooling integrated shell, wherein the third cooling integrated shell defines a third hollow cavity, the third hollow cavity is used to connect the bearing of the screw motor end, and the third cooling integrated shell is provided with a third liquid cooling channel surrounding the third hollow cavity;

[0033] A third housing fixing seat is sleeved on the third cooling integrated housing, and the third housing fixing seat is used to fix the screw motor end.

[0034] In one embodiment, the third cooling integrated housing comprises:

[0035] A third tubular structure, the third tubular structure is embedded in the third shell fixing seat, and the third tubular structure defines the third hollow cavity, and a third liquid cooling channel surrounding the third hollow cavity is provided in the third tubular structure;

[0036] A third base plate, the third base plate is arranged at the bottom of the third tubular structure, and the third base plate and the third tubular structure are integrally formed;

[0037] A third liquid inlet, the third liquid inlet is arranged on the third base plate, and the third liquid inlet is used to communicate with the third liquid cooling channel;

[0038] A third liquid outlet is provided on the third base plate, and the third liquid outlet is used to communicate with the third liquid cooling channel.

[0039] In one embodiment, the third housing fixing seat comprises:

[0040] A fixing seat body, wherein the fixing seat body defines a fourth hollow cavity, and the fourth hollow cavity is used for embedding and installing the third cooling integrated housing;

[0041] A fourth mounting portion, the fourth mounting portion is located on the left and right sides of the fixing seat body, the fourth mounting portion is formed by extending outward from the fixing seat body, and the fourth mounting portion is provided with a plurality of fourth mounting holes, and the fourth mounting holes are used to fix the screw motor end;

[0042] A motor connection frame, wherein the motor connection frame is arranged on a side of the fixing seat body away from the fourth hollow cavity, the motor connection frame is in contact with the screw motor via the motor pad, and the motor connection frame is used to install the motor pad.

[0043] In one embodiment, the motor spacer comprises:

[0044] a fifth cooling integrated frame, the fifth cooling integrated frame defining a fifth hollow cavity, the fifth hollow cavity being used for mounting a coupling on the screw motor, and the fourth liquid cooling channel being disposed in the fifth cooling integrated frame;

[0045] A first mounting fitting surface, the first mounting fitting surface is arranged on the fifth cooling integrated frame, and the first mounting fitting surface is used for being fitted and connected with the motor connection frame;

[0046] A second mounting fitting surface, the second mounting fitting surface is arranged on a side of the fifth cooling integrated frame away from the first mounting fitting surface, the second mounting fitting surface comprises a second mounting plane and a second step surface, the second mounting plane is located around the second step surface, and the second mounting plane and the second step surface are both used for fitting and connecting with the screw motor;

[0047] A fourth liquid inlet, the fourth liquid inlet is arranged on the fifth cooling integrated frame, and the fourth liquid inlet is located on a vertical plane between the first mounting fitting surface and the second mounting fitting surface, and the fourth liquid inlet is used to communicate with the fourth liquid cooling channel;

[0048] A fourth liquid outlet, wherein the fourth liquid outlet is arranged on the fifth cooling integrated frame, and the fourth liquid outlet is located on a vertical plane between the first mounting fitting surface and the second mounting fitting surface, and the fourth liquid outlet is used to communicate with the fourth liquid cooling channel.

[0049] The beneficial effects of a screw cooling system provided by the present application are at least:

[0050] The present application discloses a screw cooling system, which includes a screw mechanism, a screw nut cooling sleeve, a fixed end bearing seat, a motor end bearing seat and a motor pad. The screw mechanism includes a screw body, a screw nut, a screw motor, a screw motor end and a screw fixed end. One end of the screw body is rotatably connected to the screw motor end, and the other end is rotatably connected to the screw fixed end. The screw nut is installed on the screw body, and the screw motor is drivingly connected to the screw body. The screw nut cooling sleeve includes a first liquid cooling channel, and the screw nut cooling sleeve is sleeved on the screw nut. The first liquid cooling channel is used to cool the screw The rod nut, the fixed end bearing seat includes a second liquid cooling channel, the fixed end bearing seat is installed on the screw fixed end, the second liquid cooling channel is used to cool the screw fixed end, the motor end bearing seat includes a third liquid cooling channel, the motor end bearing seat is installed on the screw motor end, the third liquid cooling channel is used to cool the screw motor end, the motor pad includes a fourth liquid cooling channel, the motor pad is connected to the screw motor, the fourth liquid cooling channel is used to cool the screw motor, and the first liquid cooling channel is connected in parallel with the second liquid cooling channel, the third liquid cooling channel and the fourth liquid cooling channel respectively. The present application can realize the rapid cooling of the screw body through the nut cooling sleeve, the fixed end bearing seat and the motor end bearing seat, avoids deformation during the screw processing process, thereby improving the processing accuracy of the screw, and the motor pad can cool the heat of the motor to avoid the heat of the motor affecting the processing accuracy of the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying any creative work.

[0052] Figure 1 A schematic diagram of the structure of a screw cooling system provided in an embodiment of the present application;

[0053] Figure 2 A schematic diagram of the disassembled structure of the screw cooling system provided in an embodiment of the present application;

[0054] Figure 3 A schematic diagram of the structure of a nut cooling sleeve provided in an embodiment of the present application;

[0055] Figure 4 A schematic structural diagram of a specific embodiment of the first liquid cooling channel provided in an embodiment of the present application;

[0056] Figure 5 A schematic diagram of the structure of the fixed end bearing seat provided in an embodiment of the present application;

[0057] Figure 6 This is a schematic diagram of the disassembled structure of the motor end bearing seat provided in an embodiment of the present application.

[0058] Among them, the reference numerals in the figure are:

[0059] 100, screw mechanism; 200, screw nut cooling sleeve; 300, fixed end bearing seat; 400, motor end bearing seat; 500, motor spacer; 110, screw body; 120, screw nut; 130, screw motor; 140, screw motor end; 150, screw fixed end; 111, bearing; 112, collision block; 131, coupling; 210, first cooling integrated housing; 220, first liquid cooling channel; 23 0, first hollow cavity; 240, fastening portion; 250, first liquid inlet; 260, first liquid outlet; 211, opening; 221, left liquid cooling channel; 222, right liquid cooling channel; 223, S-shaped channel; 241, fastening body; 242, first mounting hole; 243, gradual connection portion; 310, second cooling integrated housing; 320, second liquid cooling channel; 330, second hollow cavity; 340, second mounting hole Mounting portion; 341, second mounting hole; 350, second liquid inlet; 360, second liquid outlet; 311, fixed gland; 312, fixed nut; 410, third cooling integrated housing; 420, third liquid cooling channel; 430, third hollow cavity; 440, third housing fixing seat; 411, third tubular structure; 412, third base plate; 413, third liquid inlet; 414, third liquid outlet; 441, fixed Seat body; 442, fourth mounting portion; 443, motor connection frame; 444, fourth hollow cavity; 445, fourth mounting hole; 510, fifth cooling integrated frame; 520, fourth liquid cooling channel; 530, fifth hollow cavity; 540, first mounting fitting surface; 550, second mounting fitting surface; 560, fourth liquid inlet; 570, fourth liquid outlet; 551, second mounting plane; 552, second step surface. DETAILED DESCRIPTION

[0060] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0061] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly or indirectly located on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on the present technical solution. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0062] See also Figure 1 The present embodiment provides a screw cooling system, which includes: a screw mechanism 100, a screw nut cooling sleeve 200, a fixed end bearing seat 300, a motor end bearing seat 400 and a motor pad 500. The screw mechanism 100 includes a screw body 110, a screw nut 120, a screw motor 130, a screw motor end 140 and a screw fixed end 150. One end of the screw body 110 is rotatably connected to the screw motor end 140, and the other end is rotatably connected to the screw fixed end 150. The screw nut 120 is installed on the screw body 110, and the screw motor 130 is drivingly connected to the screw body 110.

[0063] The nut cooling sleeve 200 includes a first liquid cooling channel 220 . The nut cooling sleeve 200 is sleeved on the screw nut 120 . The first liquid cooling channel 220 is used to cool the screw nut 120 .

[0064] The fixed end bearing seat 300 includes a second liquid cooling channel 320 . The fixed end bearing seat 300 is installed on the screw fixed end 150 . The second liquid cooling channel 320 is used to cool the screw fixed end 150 .

[0065] The motor end bearing seat 400 includes a third liquid cooling channel 420 . The motor end bearing seat 400 is installed on the screw motor end 140 . The third liquid cooling channel 420 is used to cool the screw motor end 140 .

[0066] The motor block 500 includes a fourth liquid cooling channel 520, the motor block 500 is connected to the lead screw motor 130, the fourth liquid cooling channel 520 is used to cool the lead screw motor 130, and the first liquid cooling channel 220 is connected in parallel with the second liquid cooling channel 320, the third liquid cooling channel 420 and the fourth liquid cooling channel 520 respectively.

[0067] In this embodiment, when the screw mechanism 100 is in working state, the components that cause the screw body 110 to heat up mainly include the screw motor 130, the screw fixed end 150, the screw motor end 140 and the screw nut 120. For example, when the screw mechanism 100 is working, the screw motor 130 generates heat and transmits it to the screw body 110. After the screw body 110 runs at high speed, the connection position between the screw body 110 and the screw fixed end 150 and the connection position between the screw body 110 and the screw motor end 140 will generate heat. After high load and high-speed repeated movement, the screw nut 120 itself and the position connected to the screw body 110 will generate heat. The heat is easy to cause thermal expansion deformation, resulting in a decrease in the accuracy of the screw mechanism 100.

[0068] This embodiment provides a screw cooling system, which enables the screw body 110 to maintain a constant temperature state, thereby reducing the influence of thermal expansion and contraction of the screw body 110 on the accuracy of the screw body 110. The nut cooling sleeve 200 can take away the heat generated by the high-speed operation of the screw nut 120 and the heat generated by the friction between the screw nut 120 and the screw body 110 through the first liquid-cooling channel 220; the fixed-end bearing seat 300 can take away the heat generated by the friction between the screw fixed end 150 and the screw body 110 through the second liquid-cooling channel 320; the motor-end bearing seat 400 can take away the heat generated by the friction between the screw motor end 140 and the screw body 110 through the third liquid-cooling channel 420; the motor pad 500 can take away the heat generated by the operation of the screw motor 130 through the fourth liquid-cooling channel 520 to prevent the screw motor 130 from transferring heat to the screw body 110. It can be seen that this embodiment can effectively dissipate heat for multiple heat sources of the screw body 110 at the same time, so that the screw body 110 maintains a constant temperature state, so as to reduce the influence of thermal expansion and contraction of the screw body 110 on the accuracy of the screw body 110.

[0069] In addition, in the present embodiment, the first liquid cooling channel 220 is connected in parallel with the second liquid cooling channel 320, the third liquid cooling channel 420 and the fourth liquid cooling channel 520 respectively. The parallel channels can distribute the coolant to the nut cooling sleeve 200, the fixed end bearing seat 300, the motor end bearing seat 400 and the motor pad 500, so that each branch channel covers a different heat source area, thereby achieving more uniform heat dissipation. The channel layout can be flexibly designed according to the distribution of the heat source, and precise cooling can be performed for different heat source areas. By adjusting the flow distribution of each parallel channel, more coolant can be provided for high heat areas to achieve dynamic thermal management. At the same time, it can also reduce the power consumption of the system pump and improve the energy efficiency of the cooling system.

[0070] Therefore, this embodiment can achieve rapid cooling of the screw body 110 through the nut cooling sleeve 200, the fixed end bearing seat 300, and the motor end bearing seat 400, thereby avoiding deformation during the screw processing process, thereby improving the processing accuracy of the screw, and the motor pad 500 can cool the heat of the motor to avoid the heat of the motor affecting the processing accuracy of the screw.

[0071] Specifically, see Figure 2 and Figure 3 The nut cooling sleeve 200 also includes: a first cooling integrated shell 210, two fastening parts 240, a first liquid inlet 250 and a first liquid outlet 260. The first cooling integrated shell 210 is provided with a first liquid cooling channel 220. The first cooling integrated shell 210 defines a first hollow cavity 230, and the first hollow cavity 230 is used to embed the screw nut 120. The first cooling integrated shell 210 has an opening 211, and the opening 211 passes through the entire first cooling integrated shell 210 along the axial direction of the first cooling integrated shell 210. The two fastening parts 240 are respectively located on both sides of the opening 211, and the two fastening parts 240 are used to close the opening 211. The first liquid inlet 250 is arranged on the first cooling integrated shell 210, and the first liquid inlet 250 is used to communicate with the first liquid cooling channel 220. The first liquid outlet 260 is arranged on the first cooling integrated shell 210, and the first liquid outlet 260 is used to communicate with the first liquid cooling channel 220.

[0072] In this embodiment, when installing the nut cooling sleeve 200 and the screw nut 120, since the first cooling integrated shell 210 has an opening 211, the size of the first hollow cavity 230 of the first cooling integrated shell 210 is slightly larger than the outer diameter of the screw nut 120, the screw nut 120 can be inserted into the first hollow cavity 230, and then the opening 211 is closed by the fastening portion 240, so that the first cooling integrated shell 210 is tightly fixed on the screw nut 120, and its structure is simple and easy to install. The setting of the opening 211 can greatly simplify the installation process and improve work efficiency. At the same time, the fastening portion 240 can ensure the tightness and reliability of the connection between the nut cooling sleeve 200 and the screw nut 120, and then ensure that the nut cooling sleeve 200 can effectively cool the screw nut 120 and ensure the processing accuracy of the screw mechanism 100. In addition, the nut cooling sleeve 200 adopts an integrated molding design, which has high structural strength, can simplify the production process, and reduce costs.

[0073] Specifically, see Figure 3The fastening portion 240 includes: a fastening body 241, a first mounting hole 242 and a gradual connection portion 243. The fastening body 241 is formed by extending radially outward along the first cooling integrated shell 210. The first mounting hole 242 is opened in the fastening body 241. The first mounting hole 242 is used for fixed connection with a bolt to achieve closed opening 211. The gradual connection portion 243 is connected to the fastening body 241 and the first cooling integrated shell 210. The cross-sectional size of the gradual connection portion 243 gradually increases from the first cooling integrated shell 210 to the side of the opening 211.

[0074] In this embodiment, the first mounting hole 242 can be set as a threaded hole. When installing the screw nut cooling sleeve 200 and the screw nut 120, the first cooling integrated housing 210 can be sleeved on the screw nut 120, and then the bolt is connected to the first mounting hole 242 to lock the fastening part 240, so that the fastening body 241 is tightly fixed to the screw nut 120, which is convenient to install and has a good heat dissipation effect. The gradual connection part 243 can significantly reduce the stress concentration of the first cooling integrated housing 210, so that the stress distribution at the position of the fastening part 240 is more uniform, avoiding excessive local stress.

[0075] Specifically, see Figure 4 The first liquid cooling channel 220 includes a left liquid cooling channel 221 and a right liquid cooling channel 222 connected to the left liquid cooling channel 221 . The left liquid cooling channel 221 is located on the left side of the first cooling integrated shell 210 , and the right liquid cooling channel 222 is located on the right side of the first cooling integrated shell 210 .

[0076] In this embodiment, the first liquid-cooling channel 220 includes a left-side liquid-cooling channel 221 and a right-side liquid-cooling channel 222. It can be understood that the first cooling integrated shell 210 has a proximal end and a distal end. Taking the first liquid inlet 250 located at the proximal end as an example, the first liquid inlet 250 can be connected to the left-side liquid-cooling channel 221, and the left-side liquid-cooling channel 221 extends from the proximal end to the distal end. The right-side liquid-cooling channel 222 is connected to the left-side liquid-cooling channel 221 at the distal end, and the right-side liquid-cooling channel 222 extends from the distal end to the proximal end. The right-side liquid-cooling channel 222 is connected to the first liquid outlet 260 at the proximal end, that is, the first liquid inlet 250 and the first liquid outlet 260 are both located at the proximal end, which can facilitate the arrangement of pipelines and facilitate installation and maintenance.

[0077] Specifically, see Figure 4 The left liquid-cooling channel 221 includes a plurality of S-shaped channels 223 connected in sequence; the right liquid-cooling channel 222 includes a plurality of S-shaped channels 223 connected in sequence.

[0078] The S-shaped flow channel 223 can extend the flow path of the coolant of the nut cooling sleeve 200, increase the contact area between the screw nut 120 and the cooling surface, and improve the heat exchange efficiency. At the same time, the S-shaped flow channel 223 causes more turbulence when the coolant flows, breaks the laminar boundary layer, and improves the heat transfer efficiency. In addition, the S-shaped flow channel 223 can make the coolant more evenly distributed, avoid local overheating, and ensure the overall temperature consistency of the screw nut 120.

[0079] Specifically, see Figure 4 The fixed end bearing seat 300 also includes: a second cooling integrated shell 310, a second mounting portion 340, a second liquid inlet 350 and a second liquid outlet 360. The second cooling integrated shell 310 defines a second hollow cavity 330, and the second hollow cavity 330 is used to connect the bearing 111 of the screw fixed end 150. The second cooling integrated shell 310 is provided with a second liquid cooling channel 320 surrounding the second hollow cavity 330. The second mounting portion 340 extends outward from the second cooling integrated shell 310, and a plurality of second mounting holes 341 are provided on the second mounting portion 340. The second liquid inlet 350 is arranged on the second cooling integrated shell 310, and the second liquid inlet 350 is used to communicate with the second liquid cooling channel 320. The second liquid outlet 360 is arranged on the second cooling integrated shell 310, and the second liquid outlet 360 is used to communicate with the second liquid cooling channel 320.

[0080] In this embodiment, the fixed end bearing seat 300 is installed on the screw fixed end 150 of the screw body, and a fixed pressure cover 311 can be provided on the side of the fixed end bearing seat 300 away from the screw nut, and the fixed nut 312 is located at the end of the screw nut. The coolant can enter the second liquid cooling channel 320 from the second liquid inlet 350 and flow out from the second liquid outlet 360 to take away the heat generated by the screw fixed end 150, so as to cool the screw fixed end 150 and ensure that the screw body 110 works within a suitable temperature range to maintain its accuracy and performance. The second mounting portion 340 is formed by extending outward from the second cooling integrated shell 310, and the second mounting portion 340 is provided with a second mounting hole 341, and the second mounting hole 341 is used to fix the fixed end bearing seat 300. It has a simple structure, is integrally formed, is easy to install, has high structural strength, and can provide a stable and constant temperature working environment for the high-speed operation of the screw body 110 to ensure the processing accuracy of the screw mechanism 100.

[0081] Specifically, see Figure 5The motor end bearing seat 400 also includes: a third cooling integrated shell 410, a third shell fixing seat 440 and a collision block 112. The third cooling integrated shell 410 defines a third hollow cavity 430. The third hollow cavity 430 is used to connect the bearing 111 of the screw motor end 140. The third cooling integrated shell 410 is provided with a third liquid cooling flow channel 420 surrounding the third hollow cavity 430. The third shell fixing seat 440 is sleeved on the third cooling integrated shell 410. The third shell fixing seat 440 is used to fix the screw motor end 140. The collision block 112 is arranged on the side of the third shell fixing seat 440 close to the screw nut 120. The collision block 112 can be limited for protection and is used to limit the movement range of the screw nut 120. At the same time, it has the effect of buffering and shock absorption, which can reduce the impact of the screw nut 120 when it moves to the end point, and reduce noise and wear.

[0082] In this embodiment, the third housing fixing seat 440 is located on the side of the screw body 110 close to the screw motor 130. For example, the screw motor 130 is connected to the screw body 110 through the coupling 131, wherein the bearing 111 of the screw motor end 140 is embedded in the third cooling integrated housing 410, and the third cooling integrated housing 410 is provided with a third liquid cooling channel 420. The third cooling integrated housing 410 can take away the heat of the screw motor end 140 through the third liquid cooling channel 420 to achieve cooling of the screw motor end 140 and ensure that the screw body 110 works within a suitable temperature range to maintain its accuracy and performance. In order to maintain the high-speed operation of the screw mechanism 100, the third housing fixing seat 440 is sleeved on the third cooling integrated housing 410. The third housing fixing seat 440 can limit and fix the third cooling integrated housing, that is, provide a stable working environment for the high-speed operation of the bearing 111 of the screw motor end 140.

[0083] Specifically, see Figure 5 The third cooling integrated shell 410 includes: a third tubular structure 411, a third base plate 412, a third liquid inlet 413 and a third liquid outlet 414. The third tubular structure 411 is embedded in the third shell fixing seat 440, and the third tubular structure 411 defines a third hollow cavity 430. The third tubular structure 411 is provided with a third liquid-cooling channel 420 surrounding the third hollow cavity 430. The third base plate 412 is arranged at the bottom of the third tubular structure 411. The third base plate 412 and the third tubular structure 411 are integrally formed. The third liquid inlet 413 is arranged on the third base plate 412. The third liquid inlet 413 is used to communicate with the third liquid-cooling channel 420. The third liquid outlet 414 is arranged on the third base plate 412. The third liquid outlet 414 is used to communicate with the third liquid-cooling channel 420.

[0084] In this embodiment, the coolant can enter the third liquid cooling channel 420 from the third liquid inlet 413 and flow out from the third liquid outlet 414 to take away the heat generated by the screw motor end 140, so as to cool the screw motor end 140 and ensure that the screw mechanism 100 operates within a suitable temperature range to maintain its accuracy and performance. Among them, the third tubular structure 411 is embedded in the third shell fixing seat 440 and is sleeved on the bearing 111 of the screw motor end 140, and the third base plate 412 is located at the bottom of the third tubular structure 411. It can be understood that the third base plate 412 extends outward from the bottom of the third tubular structure 411, and the third base plate 412 is provided with a third liquid inlet 413 and a third liquid outlet 414. On the one hand, the third shell fixing seat 440 can form a tight fit with the third tubular structure 411 to limit the bearing 111 of the fixed screw motor end 140. On the other hand, the third base plate 412 can provide a convenient installation environment for the third liquid inlet 413 and the third liquid outlet 414, which can facilitate the installation and fixation of the third cooling integrated shell 410, and ensure that the third cooling integrated shell 410 can effectively dissipate heat and cool the fixed screw motor end 140.

[0085] Specifically, see Figure 5 The third shell fixing seat 440 includes: a fixing seat body 441, a fourth mounting portion 442 and a motor connecting frame 443. The fixing seat body 441 defines a fourth hollow cavity 444. The fourth hollow cavity 444 is used to embed and install the third cooling integrated shell 410. The fourth mounting portion 442 is located on the left and right sides of the fixing seat body 441. The fourth mounting portion 442 is formed by extending outward from the fixing seat body 441. A plurality of fourth mounting holes 445 are provided on the fourth mounting portion 442. The fourth mounting holes 445 are used to fix the screw motor end 140. The motor connecting frame 443 is arranged on a side of the fixing seat body 441 away from the fourth hollow cavity 444. The motor connecting frame 443 is abutted against the screw motor 130 via the motor pad 500. The motor connecting frame 443 is used to install the motor pad 500.

[0086] In this embodiment, the fixing seat body 441 is installed with the third cooling integrated shell 410 through the fourth hollow cavity 444, so that the third cooling integrated shell 410 and the third shell fixing seat 440 are closely matched together, the connection is stable, and a stable output environment can be provided for the operation of the screw mechanism 100. The fourth mounting portion 442 is formed by extending outward from the fixing seat body 441, and the fourth mounting portion 442 is provided with a plurality of fourth mounting holes 445, through which the screw motor end 140 can be restricted and fixed, and the installation is convenient. Among them, the motor connection frame 443, the motor pad 500 and the screw motor 130 are stacked and closely connected together in sequence. For example, the motor connection frame 443 can fix the motor pad 500 on the screw motor 130 by bolts, so that the motor pad 500 quickly cools and dissipates heat for the screw motor 130, and prevents the heat generated by the screw motor 130 from being transferred to the screw body 110.

[0087] Specifically, see Figure 5 The motor pad 500 includes: a fifth cooling integrated frame 510, a first mounting fitting surface 540, a second mounting fitting surface 550, a fourth liquid inlet 560 and a fourth liquid outlet 570, the fifth cooling integrated frame 510 defines a fifth hollow cavity 530, the fifth hollow cavity 530 is used to install the coupling 131 on the screw motor 130, and the fifth cooling integrated frame 510 is provided with a fourth liquid cooling channel 520, the first mounting fitting surface 540 is arranged on the fifth cooling integrated frame 510, the first mounting fitting surface 540 is used to be fitted and connected with the motor connection frame 443, the second mounting fitting surface 550 is arranged on the side of the fifth cooling integrated frame 510 away from the first mounting fitting surface 540, and the second mounting fitting surface 550 includes the first Second mounting plane 551 and second step surface 552, the second mounting plane 551 is located around the second step surface 552, the second mounting plane 551 and the second step surface 552 are both used for fitting and connecting with the screw motor 130, the fourth liquid inlet 560 is arranged on the fifth cooling integrated frame 510, and the fourth liquid inlet 560 is located on the vertical plane between the first mounting fitting surface 540 and the second mounting fitting surface 550, the fourth liquid inlet 560 is used to communicate with the fourth liquid cooling channel 520, the fourth liquid outlet 570 is arranged on the fifth cooling integrated frame 510, and the fourth liquid outlet 570 is located on the vertical plane between the first mounting fitting surface 540 and the second mounting fitting surface 550, and the fourth liquid outlet 570 is used to communicate with the fourth liquid cooling channel 520.

[0088] In this embodiment, the coolant can enter the fourth liquid cooling channel 520 from the fourth liquid inlet 560 and flow out from the fourth third liquid outlet to take away the heat generated by the screw motor 130, prevent the screw motor 130 from transferring heat to the screw body 110, and ensure that the screw mechanism 100 works within a suitable temperature range to maintain its accuracy and performance. Among them, the fifth cooling integrated frame 510 is provided with a first mounting fitting surface 540, and a second mounting fitting surface 550 is provided on the other side. The fifth cooling integrated frame 510 is embedded between the motor connection frame 443 and the screw motor 130 through the first mounting fitting surface 540 and the second mounting fitting surface 550, so that the motor pad 500 can be closely matched with the motor connection frame 443 and the screw motor 130, and can effectively cool and dissipate heat for the screw motor 130. In addition, the fifth cooling integrated frame 510 has a fifth hollow cavity 530 . When the motor spacer 500 is installed, the fifth hollow cavity 530 can be sleeved on the coupling 131 , which is convenient for installation.

[0089] The specific structures of the second liquid cooling channel 320 and the third liquid cooling channel 420 can refer to the structure of the first liquid cooling channel 220, and the specific structures of the second liquid cooling channel 320 and the third liquid cooling channel 420 are not described in detail. The motor pad 500 is a flat square frame structure, and the fourth liquid cooling channel 520 can be arranged along the frame of the motor pad 500. The specific structure of the fourth liquid cooling channel 520 is not described in detail.

[0090] In summary, the present application discloses a screw cooling system, which includes a screw mechanism, a screw nut cooling sleeve, a fixed end bearing seat, a motor end bearing seat and a motor pad. The screw mechanism includes a screw body, a screw nut, a screw motor, a screw motor end and a screw fixed end. One end of the screw body is rotatably connected to the screw motor end, and the other end is rotatably connected to the screw fixed end. The screw nut is installed on the screw body, and the screw motor is drivingly connected to the screw body. The screw nut cooling sleeve includes a first liquid cooling channel, and the screw nut cooling sleeve is sleeved on the screw nut. A liquid cooling channel is used to cool the screw nut, the fixed end bearing seat includes a second liquid cooling channel, the fixed end bearing seat is installed on the screw fixed end, the second liquid cooling channel is used to cool the screw fixed end, the motor end bearing seat includes a third liquid cooling channel, the motor end bearing seat is installed on the screw motor end, the third liquid cooling channel is used to cool the screw motor end, the motor pad includes a fourth liquid cooling channel, the motor pad is connected to the screw motor, the fourth liquid cooling channel is used to cool the screw motor, and the first liquid cooling channel is connected in parallel with the second liquid cooling channel, the third liquid cooling channel and the fourth liquid cooling channel respectively. The present application can achieve rapid cooling of the screw body through the screw nut cooling sleeve, the fixed end bearing seat and the motor end bearing seat, avoid deformation during the screw processing process, thereby improving the processing accuracy of the screw, and the motor pad can cool the heat of the motor to avoid the heat of the motor affecting the processing accuracy of the screw.

[0091] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A screw cooling system, characterized in that: include: A screw mechanism, the screw mechanism comprising a screw body, a screw nut, a screw motor, a screw motor end and a screw fixed end, one end of the screw body is rotatably connected to the screw motor end, and the other end is rotatably connected to the screw fixed end, the screw nut is mounted on the screw body, and the screw motor is drivingly connected to the screw body; A screw nut cooling sleeve, the screw nut cooling sleeve comprising a first liquid cooling channel, the screw nut cooling sleeve is sleeved on the screw nut, and the first liquid cooling channel is used to cool the screw nut; A fixed end bearing seat, the fixed end bearing seat comprising a second liquid cooling channel, the fixed end bearing seat is mounted on the screw fixed end, and the second liquid cooling channel is used to cool the screw fixed end; A motor end bearing seat, the motor end bearing seat comprising a third liquid cooling channel, the motor end bearing seat is mounted on the screw motor end, and the third liquid cooling channel is used to cool the screw motor end; A motor block, wherein the motor block includes a fourth liquid-cooling channel, the motor block is connected to the lead screw motor, the fourth liquid-cooling channel is used to cool the lead screw motor, and the first liquid-cooling channel is respectively connected in parallel with the second liquid-cooling channel, the third liquid-cooling channel and the fourth liquid-cooling channel.

2. The screw cooling system according to claim 1, characterized in that: The nut cooling sleeve also includes: A first cooling integrated shell, wherein the first liquid cooling channel is provided in the first cooling integrated shell, the first cooling integrated shell defines a first hollow cavity, the first hollow cavity is used to embed the screw nut, and the first cooling integrated shell has an opening, and the opening runs through the entire first cooling integrated shell along the axial direction of the first cooling integrated shell; Two fastening parts, the two fastening parts are respectively located on both sides of the opening, and the two fastening parts are used to close the opening; A first liquid inlet, the first liquid inlet is arranged in the first cooling integrated housing, and the first liquid inlet is used to communicate with the first liquid cooling channel; A first liquid outlet is provided on the first cooling integrated shell, and the first liquid outlet is used to communicate with the first liquid cooling channel.

3. The screw cooling system according to claim 1, characterized in that: The first liquid cooling channel includes a left liquid cooling channel and a right liquid cooling channel connected to the left liquid cooling channel, the left liquid cooling channel is located on the left side of the first cooling integrated shell, and the right liquid cooling channel is located on the right side of the first cooling integrated shell.

4. The screw cooling system according to claim 3, characterized in that: The left liquid-cooling flow channel includes a plurality of S-shaped flow channels connected in sequence; the right liquid-cooling flow channel includes a plurality of S-shaped flow channels connected in sequence.

5. The screw cooling system according to claim 2, characterized in that: The fastening portion comprises: A fastening body, the fastening body extending radially outward along the first cooling integrated shell; A first mounting hole, the first mounting hole is opened in the fastening body, and the first mounting hole is used to be fixedly connected with a bolt to close the opening; A gradual connection portion is connected to the fastening body and the first cooling integrated shell, and a cross-sectional size of the gradual connection portion gradually increases from the first cooling integrated shell to the opening side.

6. The screw cooling system according to claim 1, characterized in that: The fixed end bearing seat also includes: A second cooling integrated shell, wherein the second cooling integrated shell defines a second hollow cavity, the second hollow cavity is used to connect the bearing of the fixed end of the screw rod, and a second liquid cooling channel surrounding the second hollow cavity is provided in the second cooling integrated shell; A second mounting portion, the second mounting portion is formed by extending outward from the second cooling integrated housing, and the second mounting portion is provided with a plurality of second mounting holes; a second liquid inlet, the second liquid inlet being disposed on the second cooling integrated housing, the second liquid inlet being used to communicate with the second liquid cooling channel; A second liquid outlet is provided on the second cooling integrated shell, and the second liquid outlet is used to communicate with the second liquid cooling channel.

7. The screw cooling system according to claim 1, characterized in that: The motor end bearing seat also includes: A third cooling integrated shell, wherein the third cooling integrated shell defines a third hollow cavity, the third hollow cavity is used to connect the bearing of the screw motor end, and the third cooling integrated shell is provided with a third liquid cooling channel surrounding the third hollow cavity; A third housing fixing seat is sleeved on the third cooling integrated housing, and the third housing fixing seat is used to fix the screw motor end.

8. The screw cooling system according to claim 7, characterized in that: The third cooling integrated housing comprises: A third tubular structure, the third tubular structure is embedded in the third shell fixing seat, and the third tubular structure defines the third hollow cavity, and a third liquid cooling channel surrounding the third hollow cavity is provided in the third tubular structure; A third base plate, the third base plate is arranged at the bottom of the third tubular structure, and the third base plate and the third tubular structure are integrally formed; A third liquid inlet, the third liquid inlet is arranged on the third base plate, and the third liquid inlet is used to communicate with the third liquid cooling channel; A third liquid outlet is provided on the third base plate, and the third liquid outlet is used to communicate with the third liquid cooling channel.

9. The screw cooling system according to claim 7, characterized in that: The third housing fixing seat comprises: A fixing seat body, wherein the fixing seat body defines a fourth hollow cavity, and the fourth hollow cavity is used for embedding and installing the third cooling integrated housing; A fourth mounting portion, the fourth mounting portion is located on the left and right sides of the fixing seat body, the fourth mounting portion is formed by extending outward from the fixing seat body, and the fourth mounting portion is provided with a plurality of fourth mounting holes, and the fourth mounting holes are used to fix the screw motor end; A motor connection frame, wherein the motor connection frame is arranged on a side of the fixing seat body away from the fourth hollow cavity, the motor connection frame is in contact with the screw motor via the motor pad, and the motor connection frame is used to install the motor pad.

10. The screw cooling system according to claim 9, characterized in that: The motor spacer comprises: a fifth cooling integrated frame, the fifth cooling integrated frame defining a fifth hollow cavity, the fifth hollow cavity being used for mounting a coupling on the screw motor, and the fourth liquid cooling channel being disposed in the fifth cooling integrated frame; A first mounting fitting surface, the first mounting fitting surface is arranged on the fifth cooling integrated frame, and the first mounting fitting surface is used for being fitted and connected with the motor connection frame; A second mounting fitting surface, the second mounting fitting surface is arranged on a side of the fifth cooling integrated frame away from the first mounting fitting surface, the second mounting fitting surface comprises a second mounting plane and a second step surface, the second mounting plane is located around the second step surface, and the second mounting plane and the second step surface are both used for fitting and connecting with the screw motor; A fourth liquid inlet, the fourth liquid inlet is arranged on the fifth cooling integrated frame, and the fourth liquid inlet is located on a vertical plane between the first mounting fitting surface and the second mounting fitting surface, and the fourth liquid inlet is used to communicate with the fourth liquid cooling channel; A fourth liquid outlet, wherein the fourth liquid outlet is arranged on the fifth cooling integrated frame, and the fourth liquid outlet is located on a vertical plane between the first mounting fitting surface and the second mounting fitting surface, and the fourth liquid outlet is used to communicate with the fourth liquid cooling channel.

Images