Open type lead screw with cooling function

Abstract

The utility model belongs to the technical field of machine tool equipment, and particularly provides an open type lead screw with a cooling function, which comprises a base, a linear guide rail sliding block, a lead screw transmission mechanism, a movable sliding table and a cooling mechanism, the cooling mechanism comprises an oil storage box, a return oil collecting box and a temperature sensor, an oil injection port communicated with the oil storage box is formed in the top of the movable sliding table, an oil outlet communicated with the lead screw transmission mechanism is formed in the bottom of the movable sliding table, and a control valve connected with the temperature sensor is installed in the oil outlet. The size of the control valve is in direct proportion to the temperature, the return oil collecting box is installed on the base, an inlet of the return oil collecting box is communicated with the linear guide rail sliding block, and an outlet is communicated with the oil injection port through a pipeline. According to the utility model, oil injection cooling can be carried out on the screw rod transmission mechanism, so that the processing precision is improved, and in addition, the temperature can be adjusted and controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine tool equipment technical field relates to an open screw rod with cooling function. BACKGROUND

[0002] The screw rod is the equipment that will rotary motion is converted into linear motion, or linear motion is converted into rotary motion, it is widely used on the machine tool, because the rolling friction exists in the screw rod transmission system, and the speed is not fixed, the heat generated by the rolling friction is also not stable. At this time, the screw rod will produce thermal elongation because of the temperature change, and the elongation is unstable, which affects the positioning accuracy of the machine tool. SUMMARY

[0003] In view of the technical problem in the prior art, the utility model provides an open screw rod with cooling function, including base, linear guide rail sliding block, screw rod transmission mechanism and mobile sliding table, the base is fixedly installed on the machine tool, the linear guide rail sliding block is fixedly installed on the top of base, the screw rod transmission mechanism is located in the linear guide rail sliding block, the mobile sliding table is connected with linear guide rail sliding block sliding through screw rod transmission mechanism, still include cooling mechanism, the cooling mechanism includes oil storage box, oil return collection box and be used for monitoring the temperature sensor of screw rod transmission mechanism, the oil storage box is installed in the mobile sliding table, the top of mobile sliding table is equipped with the oil inlet that communicates oil storage box, the bottom is equipped with the oil outlet that communicates screw rod transmission mechanism, the control valve is installed in the oil outlet, the control valve is connected with temperature sensor, and the opening size of control valve is directly proportional to temperature, the oil return collection box is installed on the base, and the inlet of oil return collection box is communicated with linear guide rail sliding block, and the outlet is communicated with oil inlet through pipeline.

[0004] Further, the screw rod transmission mechanism includes a drive motor, a screw rod, and a screw nut threadedly engaged with the screw rod, the drive motor is fixedly installed on one side of the base, the output shaft of the drive motor is fixedly connected with one end of the screw rod, the other end of the screw rod is rotatably installed in the linear guide rail sliding block, the bottom of the mobile sliding table is fixedly connected with the screw nut, and the mobile sliding table is slidingly installed in the linear guide rail sliding block.

[0005] Further, the linear guide rail sliding block further comprises an oil baffle and a tail end barrier plate, the two oil baffles are located on both sides of the screw rod, the tail end barrier plate is located at one end away from the oil return collection box, an oil storage area for immersing the screw rod and the screw nut is formed between the linear guide rail sliding block, the two oil baffles and the tail end barrier plate, and the oil storage area is located below the oil outlet.

[0006] Further, the inlet of the oil return collection box is located at one end close to the top of the oil return collection box.

[0007] Further, the oil return collecting box is internally provided with a filtering assembly and a cooling assembly, and the filtering assembly is installed on one side of the cooling assembly close to the inlet.

[0008] Further, the cooling assembly comprises a water tank, a condensing pipe and a micro-submersible pump, the water tank is installed in the oil return collecting box, the water tank is in circulation with an external water source through a water pipe, the condensing pipe is spirally installed in the water tank, two ends of the condensing pipe are respectively communicated with the filtering assembly and a pipeline, and the micro-submersible pump is fixedly installed in the pipeline.

[0009] Beneficial effects:

[0010] 1. In the utility model, the cooling mechanism comprising the oil storage box, the oil return collecting box and the temperature sensor is arranged, the oil injection cooling of the lead screw transmission mechanism can be realized, so that the thermal elongation is controlled and the machining precision is improved, in addition, the oil injection amount can be automatically adjusted according to the temperature, so that the temperature is adjusted and controlled, the inlet of the oil return collecting box is communicated with the linear guide rail sliding block, and the outlet is communicated with the oil injection opening through the pipeline, so that the oil circulation is realized.

[0011] 2. In the utility model, the two oil baffle plates and the tail end blocking plate are arranged, so that the used oil can be collected, on one hand, the oil diffusion and waste can be reduced, and the cleaning efficiency can be improved, on the other hand, the oil in the oil storage area can be used to further cool the lead screw transmission mechanism.

[0012] 3. In the utility model, the inlet of the oil return collecting box is located at one end close to the top of the oil return collecting box, so that the oil in the oil return collecting box can be prevented from flowing back to the linear guide rail sliding block, and the oil storage capacity of the oil return collecting box is improved; the filtering assembly and the cooling assembly are arranged, so that the used oil can be filtered and cooled, and the cooling efficiency is improved.

[0013] 4. In the utility model, the water tank, the condensing pipe and the micro-submersible pump are arranged, so that the oil circulation is ensured, the heat exchange coefficient between the used oil and the lead screw transmission mechanism is improved, and the cooling efficiency is further improved; the condensing pipe spirally installed in the water tank can increase the contact area of the condensing pipe with water, and the cooling rate of the used oil is improved; the micro-submersible pump is arranged, so that the flow rate of the used oil can be appropriately accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0016] Figure 2 It is a semi-sectional view of the present application.

[0017] Figure 3 It is a schematic diagram of the internal structure of the oil return collecting box of the present application.

[0018] Explanation of reference signs:

[0019] 1, base; 2, linear guide rail slider; 3, screw transmission mechanism; 31, driving motor; 32, screw rod; 33, screw nut; 4, moving sliding table; 5, oil return collecting box; 6, temperature sensor; 7, oil inlet; 8, oil outlet; 9, oil baffle; 10, tail end barrier plate; 11, filter assembly; 12, cooling assembly. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0022] In addition, the terms "first", "second", "third", etc. are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or an ordered sequence. Thus, features defined with "first", "second" or "third" can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0023] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0025] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0026] The utility model provides a kind of open screw rod with cooling function, such as Figure 1 And Figure 2As shown, including base 1, linear guide slide 2, screw drive mechanism 3 and moving slide 4, the base 1 is fixedly installed on the machine tool, the linear guide slide 2 is fixedly installed on the top of base 1, the screw drive mechanism 3 is located in the linear guide slide 2, the moving slide 4 is slidably connected with linear guide slide 2 through screw drive mechanism 3, the screw drive mechanism 3 includes driving motor 31, screw 32 and screw nut 33 threaded with screw 32, the driving motor 31 is fixedly installed on one side of base 1, the output shaft of driving motor 31 is fixedly connected with one end of screw 32, the other end of screw 32 is rotatably installed in linear guide slide 2 through bearing, the bottom of moving slide 4 is fixedly connected with screw nut 33, the moving slide 4 is slidably installed in linear guide slide 2, further comprising cooling mechanism, the cooling mechanism comprises oil storage box, oil return collecting box 5 and temperature sensor 6 for monitoring screw drive mechanism 3, and the specific temperature sensor 6 is used for monitoring the temperature of screw nut 33, the oil storage box is installed in the moving slide 4, the top of moving slide 4 is provided with oil inlet 7 communicating with the oil storage box, and the bottom is provided with oil outlet 8 communicating with screw drive mechanism 3, the control valve is installed in the oil outlet 8, the control valve is connected with the temperature sensor 6, and the opening size of the control valve is proportional to the temperature, the oil return collecting box 5 is installed on the base 1, the inlet of oil return collecting box 5 is communicated with the linear guide slide 2, and the outlet is communicated with the oil inlet 7 through the pipeline.

[0027] In the embodiment, the cooling mechanism comprising the oil storage box, the oil return collecting box 5 and the temperature sensor 6 can spray oil to cool the screw drive mechanism 3, so as to control the thermal elongation and improve the machining precision, and the oil injection amount can be automatically adjusted according to the temperature, so as to realize the temperature adjustment control; in combination with the structure that the inlet of the oil return collecting box 5 is communicated with the linear guide slide 2, and the outlet is communicated with the oil inlet 7 through the pipeline, the oil can be recycled.

[0028] In the utility model, preferably, as shown in Figure 1 and Figure 2 As shown, the linear guide slide 2 is further provided with an oil baffle 9 and a tail end barrier plate 10, the two oil baffles 9 are located on the two sides of the screw 32 respectively, and the tail end barrier plate 10 is located at one end away from the oil return collecting box 5; an oil storage area for the screw 32 and the screw nut 33 is formed between the linear guide slide 2, the two oil baffles 9 and the tail end barrier plate 10; and the oil storage area is located below the oil outlet 8.

[0029] In the embodiment, the two oil baffles 9 and the tail end barrier plate 10 can collect the used oil, which can reduce the waste of oil and improve the cleaning efficiency, and the oil in the oil storage area can further cool the screw drive mechanism 3.

[0030] In this utility model, preferably, such as Figure 1 , Figure 2 and Figure 3 As shown, the inlet of the oil return collection box 5 is located at one end near the top of the oil return collection box 5; the oil return collection box 5 is provided with a filter assembly 11 and a cooling assembly 12, and the filter assembly 11 is installed on the side of the cooling assembly 12 near the inlet.

[0031] In this embodiment, by setting the inlet of the return oil collection box 5 to be located near the top of the return oil collection box 5, the oil in the return oil collection box 5 can be prevented from flowing back into the linear guide slider 2, thereby increasing the oil storage capacity of the return oil collection box 5; by setting the filter assembly 11 and the cooling assembly 12, the used oil can be filtered and cooled, thereby improving the cooling efficiency.

[0032] In this utility model, preferably, such as Figure 1 and Figure 3 As shown, the cooling assembly 12 includes a water tank, a condenser tube, and a miniature submersible pump. The water tank is installed in the oil return collection box 5 and is circulated with an external water source through a water pipe. The condenser tube is spirally installed in the water tank, and its two ends are connected to the filter assembly 11 and the pipeline, respectively. The miniature submersible pump is fixedly installed in the pipeline. The oil in the linear guide slider 2 enters the oil storage box through the filter assembly 11, the condenser tube, and the pipeline under the action of the miniature submersible pump.

[0033] In this embodiment, the arrangement of the water tank, condenser tube, and miniature submersible pump ensures the circulation of oil and improves the heat transfer coefficient between the used oil and the screw drive mechanism 3, thereby further improving the cooling efficiency. Specifically, the condenser tube, which is spirally installed in the water tank, increases the contact area between the condenser tube and the water, thereby increasing the cooling rate of the used oil. The miniature submersible pump can appropriately accelerate the flow rate of the used oil.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An open type lead screw with cooling function, comprising a base (1), a linear guide slide (2), a lead screw transmission mechanism (3) and a moving slide (4), the base (1) is fixedly installed on a machine tool, the linear guide slide (2) is fixedly installed on the top of the base (1), the lead screw transmission mechanism (3) is located in the linear guide slide (2), and the moving slide (4) is slidably connected with the linear guide slide (2) through the lead screw transmission mechanism (3), characterized in that, The cooling mechanism comprises an oil storage box, an oil return collecting box (5) and a temperature sensor (6) for monitoring the screw rod transmission mechanism (3), the oil storage box is installed in the moving sliding table (4), the top of the moving sliding table (4) is provided with an oil inlet (7) communicating with the oil storage box, the bottom of the moving sliding table (4) is provided with an oil outlet (8) communicating with the screw rod transmission mechanism (3), the oil outlet (8) is provided with a control valve, the control valve is connected with the temperature sensor (6), and the opening size of the control valve is proportional to the temperature, the oil return collecting box (5) is installed on the base (1), the inlet of the oil return collecting box (5) communicates with the linear guide sliding block (2), and the outlet communicates with the oil inlet (7) through a pipeline.

2. The open type lead screw having a cooling function according to claim 1, wherein The screw rod transmission mechanism (3) comprises a driving motor (31), a screw rod (32) and a screw rod nut (33) threadedly matched with the screw rod (32), the driving motor (31) is fixedly installed on one side of the base (1), the output shaft of the driving motor (31) is fixedly connected with one end of the screw rod (32), the other end of the screw rod (32) is rotatably installed in the linear guide sliding block (2), and the bottom of the moving sliding table (4) is fixedly connected with the screw rod nut (33).

3. The open type lead screw having a cooling function according to claim 2, wherein The linear guide sliding block (2) is further provided with an oil baffle (9) and a tail end blocking plate (10), the two oil baffles (9) are located on the two sides of the screw rod (32) respectively, the tail end blocking plate (10) is located at one end away from the oil return collecting box (5), and the linear guide sliding block (2), the two oil baffles (9) and the tail end blocking plate (10) form an oil storage area for immersing the screw rod (32) and the screw rod nut (33) therebetween.

4. The open-type lead screw with a cooling function according to any one of claims 1 to 3, characterized in that, The inlet of the oil return collecting box (5) is located at one end close to the top of the oil return collecting box (5).

5. The open type lead screw having a cooling function according to claim 4, wherein The oil return collecting box (5) is provided with a filtering assembly (11) and a cooling assembly (12), the filtering assembly (11) is installed on one side of the cooling assembly (12) close to the inlet.

6. The open type lead screw having a cooling function according to claim 5, wherein The cooling assembly (12) comprises a water tank, a condenser pipe and a micro-submersible pump, the water tank is installed in the oil return collecting box (5), the water tank is in circulation with an external water source through a water pipe, the condenser pipe is spirally installed in the water tank, the two ends of the condenser pipe are in communication with the filtering assembly (11) and the pipeline respectively, and the micro-submersible pump is fixedly installed in the pipeline.

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