Constant temperature device of cooling system for machine tool machining

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a constant temperature device of a cooling system for machine tool machining, which comprises a water tank, a temperature sensor is fixedly connected to the front end of the upper surface of the water tank in a penetrating manner, and a cooler is fixedly connected to the upper surface of the water tank behind the temperature sensor; a cleaning mechanism is arranged between the temperature sensor and the cooling machine on the upper surface of the water tank and in the water tank; water in the water tank is pumped out through the water pump and fed into the machine tool spindle, the water absorbing heat flows back into the water tank through the water inlet pipe, and after the temperature sensor detects that the water temperature is higher than a set range, the cooling machine is started to refrigerate condensate in the condensation pipe, so that the water is cooled; a motor in the cleaning mechanism continuously rotates forwards and backwards, and a mounting rope drives a sliding block to reciprocate and lift, so that a cleaning sleeve is driven to reciprocate and lift to clean the condenser pipe, and the heat exchange efficiency is prevented from being influenced by a heat insulation layer formed after impurities on the surface of the condenser pipe are scaled after the condenser pipe is immersed in water for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool technical field, concretely is a constant temperature device of cooling system for machine tool processing. BACKGROUND

[0002] When the numerical control machine tool runs, the moving parts of the machine tool will generate heat, and the thermal deformation caused by the heat will have a huge impact on the machining precision. Therefore, high-precision and ultra-precision machine tools must be equipped with high-precision and high-stability constant temperature cooling systems for continuous operation to remove the heat generated during the operation of the machine tool and thus ensure the machining precision.

[0003] In the prior art, although the cooling machine has a completely independent refrigeration system, there is a fatal problem for high-precision and ultra-precision machine tools: when the medium flowing into the cooling machine is lower than the current set temperature of the digital temperature controller, the refrigeration system stops working, and when the oil return temperature is higher than the current set temperature of the digital temperature controller plus the set temperature difference, the refrigeration system will start working again. At this time, the medium temperature will suddenly drop and be transmitted to the running parts, according to the principle of thermal expansion and contraction, the sudden change of temperature difference will cause the running parts to shrink and produce size errors, especially the spindle of the numerical control machine tool, thereby causing the machining precision to change directly, resulting in defective or scrapped high-precision products.

[0004] A constant temperature cooling system for high-precision numerical control machining machine tool (authorized publication number CN220330744U) is disclosed in Chinese patent, which connects the electric spindle of the machining machine tool through the water outlet pipe. When the electric spindle is overheated, the heat will flow into the water tank through the water flow in the water inlet pipe. The water in the water tank will mix with the hot water. When the water temperature in the water tank is too high, the temperature detector will detect it, causing the cooling machine to run. The running of the cooling machine causes the condensate in the first circulating pipe, the second circulating pipe and the condensing pipe to cool down quickly. The cooled condensing pipe will emit cold air outward, which will slowly cool the water in the water tank. When the water in the water tank is slowly cooled, the water outlet pipe will export the slowly cooled water in the water tank to slowly cool the electric spindle of the butt joint machining machine tool, avoiding the problem of traditional sudden cooling, which causes the temperature difference to be too large and the running parts to shrink and produce size errors.

[0005] However, it has certain disadvantages: the condensing pipe will accumulate impurities and scale on the surface due to long-term immersion in water. These impurities and scale will form a heat insulation layer, reducing the heat exchange efficiency of the condensing pipe and the water, which will cause the overall cooling effect of the system to decrease, the water temperature cannot be maintained within the set range, and due to the reduced heat exchange efficiency, it will take longer or higher energy consumption to reduce the water temperature to the ideal range. This not only increases the energy consumption cost, but also affects the cooling effect of the machine tool spindle, thereby affecting the running stability and service life of the machine tool. UTILITY MODEL CONTENT

[0006] The utility model discloses a constant temperature device of cooling system for machine tool processing, to solve the problem of above -mentioned background art.

[0007] To realize above -mentioned purpose, the utility model provides the following technical scheme:

[0008] A constant temperature device of cooling system for machine tool processing, including water tank, the left side surface lower extreme of water tank is provided with water outlet mechanism, and the left side surface upper extreme of water tank is penetrated and is fixedly connected with inlet pipe, the upper surface front end of water tank is penetrated and is fixedly connected with temperature sensor, and the upper surface of water tank is fixedly connected with cooling machine behind temperature sensor, the front surface of cooling machine is fixedly connected with condenser pipe,

[0009] The upper surface of water tank is located between temperature sensor and cooling machine and the inside of water tank and is provided with cleaning mechanism, the cleaning mechanism includes fixed plate, the front surface of fixed plate is fixedly connected with a plurality of cleaning cover, and the upper surface of fixed plate is fixedly connected with fixed rod, the cleaning mechanism still includes drive mechanism of fixed plate lifting.

[0010] As the further scheme of the utility model: the water outlet mechanism includes water pump, and the water inlet end of water pump is fixedly connected with first water pipe, and the water outlet end of water pump is fixedly connected with second water pipe.

[0011] As the further scheme of the utility model: the drive mechanism includes slide rod, and the upper and lower both ends of slide rod are fixedly connected with connecting block, and two connecting rods are symmetrically fixedly connected behind slide rod between two connecting blocks, the outside of slide rod is slidably connected with sliding block, the upper surface of sliding block is fixedly connected with spring outside slide rod, the upper surface of upper connecting block is fixedly connected with mounting block, the front surface of mounting block is fixedly connected with motor, the output end of motor is fixedly connected with mounting roller, and the outside of mounting roller is wound with mounting rope.

[0012] As the further scheme of the utility model: the detection end of temperature sensor is located in the inside of water tank, and the condenser pipe is fixedly connected on the upper surface of water tank.

[0013] As the further scheme of the utility model: one end of first water pipe is fixedly connected on the left side surface lower extreme of water tank.

[0014] As the further scheme of the utility model: the cleaning cover is movably sleeved on the outside of condenser pipe, the fixed rod is movably penetrated on the upper surface of water tank, the lower connecting block is fixedly connected on the upper surface of water tank, the connecting rod is movably penetrated in sliding block, the upper end of fixed rod is fixedly connected on the lower surface of sliding block, the upper end of spring is fixedly connected on the upper connecting block, the mounting rope is movably penetrated in upper connecting block, and one end of mounting rope is fixedly connected on the upper surface of sliding block.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1、 the utility model discloses a water pump is taken out with the water in water tank and is sent into lathe main shaft and is cooled to it, and the water of heat absorption is backflowed to the water tank through the water inlet pipe, and after temperature sensor detects that the water temperature is higher than the set range, the cooling machine starts the refrigeration of the condensate in the condenser pipe, thereby cooling the water and making the water temperature always be in the set range, also avoid the problem that the traditional sudden cooling leads to the temperature difference too big, and the running part will shrink and produce the size error.

[0017] 2、 the utility model discloses through being provided with the cleaning mechanism, the motor in cleaning mechanism is constantly forward and reverse, and the slide block is driven to reciprocating lifting through the installation rope, thereby driving the cleaning sleeve reciprocating lifting and cleaning the condenser pipe, avoid the condenser pipe long time immersion in water, and the impurity scale on its surface forms the heat insulation layer and influences the heat exchange efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic drawing of a kind of constant temperature device of cooling system for lathe machining;

[0019] Figure 2 It is the partial schematic drawing of a kind of constant temperature device of cooling system for lathe machining;

[0020] Figure 3 It is the structure schematic drawing of cleaning mechanism in a kind of constant temperature device of cooling system for lathe machining;

[0021] Figure 4 It is the structure schematic drawing of drive mechanism in a kind of constant temperature device of cooling system for lathe machining.

[0022] In the drawing: 1, water tank;2, water outlet mechanism;3, water pump;4, first water pipe;5, second water pipe;6, water inlet pipe;7, temperature sensor;8, cooling machine;9, condenser pipe;10, cleaning mechanism;11, fixed plate;12, cleaning sleeve;13, fixed rod;14, drive mechanism;15, slide bar;16, connecting block;17, connecting rod;18, slide block;19, spring;20, mounting block;21, motor;22, mounting roller;23, installation rope. DETAILED DESCRIPTION

[0023] Please refer to Figure 1 And Figure 2The utility model discloses a constant temperature device of cooling system for machine tool processing, including water tank 1, the left side surface lower extreme of water tank 1 is provided with water outlet mechanism 2, and water outlet mechanism 2 includes water pump 3, and the water inlet end of water pump 3 is fixedly connected with first water pipe 4, and one end of first water pipe 4 is fixedly connected to the left side surface lower extreme of water tank 1 and penetrates, and the water outlet end of water pump 3 is fixedly connected with second water pipe 5, and the left side surface upper extreme of water tank 1 is fixedly connected with water inlet pipe 6 and penetrates, and the upper surface front end of water tank 1 is fixedly connected with temperature sensor 7 and penetrates, and the detection end of temperature sensor 7 is located in the inside of water tank 1, and the upper surface of water tank 1 is fixedly connected with cooling machine 8 and penetrates the rear of temperature sensor 7, and the front surface of cooling machine 8 is fixedly connected with condenser pipe 9, and condenser pipe 9 is fixedly connected to the upper surface of water tank 1 and penetrates;

[0024] There is cold water in water tank 1;

[0025] Second water pipe 5 is connected to machine tool spindle, and water inlet pipe 6 is connected to machine tool spindle through pipeline, and water pump 3 extracts the water in water tank 1 and sends into the cold flow channel of machine tool spindle, and the water of heat absorption is returned to water tank 1 through water inlet pipe 6, to form circulation;

[0026] Temperature sensor 7 is used to detect the water temperature in water tank 1, when the water temperature is higher than the set range, cooling machine 8 starts cooling the water in water tank 1, so that the water temperature is in the set range;

[0027] The working principle of cooling machine 8 is identical with the working principle of cooling machine in the constant temperature cooling system of high-precision numerical control processing machine tool (authorized announcement number CN220330744U) of China, and cooling machine 8 runs, and the condensate in condenser pipe 9 is cooled quickly, to carry out refrigeration treatment to the water in water tank 1.

[0028] In Figures 2 to 4The upper surface of the water tank 1 is located between the temperature sensor 7 and the cooler 8, and the inside of the water tank 1 is jointly provided with a cleaning mechanism 10, the cleaning mechanism 10 comprises a fixed plate 11, a plurality of cleaning sleeves 12 are fixedly connected to the front surface of the fixed plate 11, the cleaning sleeves 12 are movably sleeved on the outside of the condenser pipe 9, a fixed rod 13 is fixedly connected to the upper surface of the fixed plate 11 and movably penetrates the upper surface of the water tank 1, the cleaning mechanism 10 further comprises a driving mechanism 14 for driving the fixed plate 11 to ascend and descend, the driving mechanism 14 comprises a sliding rod 15, a connecting block 16 is fixedly connected to the upper and lower ends of the sliding rod 15, the lower connecting block 16 is fixedly connected to the upper surface of the water tank 1, two connecting rods 17 are symmetrically fixed to the rear of the sliding rod 15 between the two connecting blocks 16, a sliding block 18 is slidably connected to the outside of the sliding rod 15, the connecting rod 17 movably penetrates the sliding block 18, the upper end of the fixed rod 13 is fixedly connected to the lower surface of the sliding block 18, a spring 19 is fixedly connected to the outside of the sliding rod 15 on the upper surface of the sliding block 18, the upper end of the spring 19 is fixedly connected to the upper connecting block 16, an installation block 20 is fixedly connected to the upper surface of the upper connecting block 16, an electric motor 21 is fixedly connected to the front surface of the installation block 20, an installation roller 22 is fixedly connected to the output end of the electric motor 21, an installation rope 23 is wound on the outside of the installation roller 22, the installation rope 23 movably penetrates the upper connecting block 16, and one end of the installation rope 23 is fixedly connected to the upper surface of the sliding block 18.

[0029] The electric motor 21 is connected to a forward and reverse rotation circuit, and the electric motor 21 is provided with a brake, that is, after power-off, the motor shaft cannot rotate;

[0030] When the installation rope 23 is wound, the sliding block 18 can be driven to ascend and compress the spring 19, and when the installation rope 23 is unwound, under the elastic force of the spring 19 and the gravity of the fixed plate 11, the sliding block 18 can descend to the lowermost end, so as to drive the fixed plate 11 to reciprocatingly ascend and descend, the surface of the condenser pipe 9 is cleaned through the cleaning sleeves 12, the surface of the condenser pipe 9 is prevented from adhering scale to form a heat insulation layer, the heat exchange efficiency is prevented from being affected, and the refrigeration effect of the cooler 8 is affected.

[0031] The working principle of the utility model is: firstly, the second water pipe 5 is connected to the cold flow channel inlet of the machine tool spindle, and the water inlet pipe 6 is connected to the cold flow channel outlet of the machine tool spindle through a pipeline; the water pump 3 is started to pump water out to cool the machine tool spindle, and the water adsorbing heat enters the water tank 1 through the water inlet pipe 6; when the temperature sensor 7 detects that the water temperature in the water tank 1 is higher than the set range, the cooler 8 is started to rapidly cool the condensate in the condenser pipe 9, so as to refrigerate the water in the water tank 1; every time interval, the electric motor 21 is started and rotates forward for a time interval and then reverses for a time interval, the sliding block 18 is driven to reciprocatingly ascend and descend, so that the cleaning sleeves 12 clean the surface of the condenser pipe 9, and the surface of the condenser pipe 9 is prevented from adhering impurities to form scale and affect the heat exchange efficiency.

[0032] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, and any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

[0033] In the description of the present application, it should be explained that, unless explicitly defined and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A constant temperature device for a cooling system for machine tool processing, comprising a water tank (1), wherein a water outlet mechanism (2) is provided at the lower end of the left side surface of the water tank (1), and a water inlet pipe (6) is fixedly connected through the upper end of the left side surface of the water tank (1), a temperature sensor (7) is fixedly connected through the front end of the upper surface of the water tank (1), and a cooler (8) is fixedly connected behind the temperature sensor (7) on the upper surface of the water tank (1), and a condenser pipe (9) is fixedly connected to the front surface of the cooler (8); Its features are, A cleaning mechanism (10) is provided on the upper surface of the water tank (1) between the temperature sensor (7) and the cooler (8) and inside the water tank (1). The cleaning mechanism (10) includes a fixing plate (11), a plurality of cleaning sleeves (12) are fixedly connected to the front surface of the fixing plate (11), and a fixing rod (13) is fixedly connected to the upper surface of the fixing plate (11). The cleaning mechanism (10) also includes a driving mechanism (14) for lifting the fixing plate (11).

2. The temperature control device for a cooling system for machine tool processing according to claim 1, characterized in that, The water outlet mechanism (2) includes a water pump (3), the water inlet end of the water pump (3) is fixedly connected to a first water pipe (4), and the water outlet end of the water pump (3) is fixedly connected to a second water pipe (5).

3. The temperature control device for a cooling system for machine tool processing according to claim 1, characterized in that, The drive mechanism (14) includes a slide rod (15), with connecting blocks (16) fixedly connected to both the upper and lower ends of the slide rod (15). Two connecting rods (17) are symmetrically fixedly connected between the two connecting blocks (16) behind the slide rod (15). A slider (18) is slidably connected to the outside of the slide rod (15). A spring (19) is fixedly connected to the upper surface of the slider (18) outside the slide rod (15). An mounting block (20) is fixedly connected to the upper surface of the upper connecting block (16). A motor (21) is fixedly connected to the front surface of the mounting block (20). An installation roller (22) is fixedly connected to the output end of the motor (21). An installation rope (23) is wound around the outside of the installation roller (22).

4. The temperature control device for a cooling system for machine tool processing according to claim 1, characterized in that, The detection end of the temperature sensor (7) is located inside the water tank (1), and the condenser tube (9) is fixed to the upper surface of the water tank (1).

5. The temperature control device for a cooling system for machine tool processing according to claim 2, characterized in that, One end of the first water pipe (4) is fixed to the lower end of the left side surface of the water tank (1).

6. The temperature control device for a cooling system for machine tool processing according to claim 3, characterized in that, The cleaning sleeve (12) is movably sleeved on the outside of the condenser tube (9), the fixing rod (13) movably penetrates the upper surface of the water tank (1), the lower connecting block (16) is fixed to the upper surface of the water tank (1), the connecting rod (17) movably penetrates the slider (18), the upper end of the fixing rod (13) is fixed to the lower surface of the slider (18), the upper end of the spring (19) is fixed to the upper connecting block (16), the installation rope (23) movably penetrates the upper connecting block (16), and one end of the installation rope (23) is fixed to the upper surface of the slider (18).

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