Cutting fluid supply device and wire cutting machine

Abstract

The utility model relates to a cutting fluid supply device and a wire cutting machine. The liquid supply device comprises M liquid supply branches. Each liquid supply branch comprises a containing cavity, a liquid adding port, a liquid supply port, a liquid return port, a liquid discharge port, a liquid adding valve arranged at the liquid adding port, a liquid supply valve arranged at the liquid supply port, a liquid return valve arranged at the liquid return port and a liquid discharge valve arranged at the liquid discharge port, wherein the liquid adding port, the liquid supply port, the liquid return port and the liquid discharge port are communicated with the containing cavity. Wherein M is an integer greater than 1. The liquid adding opening is configured to inject cutting liquid into the containing cavity, the liquid supplying opening is configured to be connected with a spraying pipeline of the cutting chamber, the liquid returning opening is configured to be connected with a liquid discharging pipeline of the cutting chamber, and the liquid discharging opening is configured to discharge the cutting liquid in the containing cavity. According to the liquid supply device, the time for filling new cutting liquid into the containing cavity for multiple times can be saved, the time for cleaning the containing cavity can be saved, and the effect of shortening the production changing time is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire cutting, in particular to a cutting liquid supply device and a wire cutting machine. Background Art

[0002] In the field of online cutting technology, taking a online cutting machine as an example, a spray device is usually provided in a cutting chamber, and the spray device is connected to a cutting liquid supply device to lubricate and cool the cutting tool during the cutting operation.

[0003] In the prior art, the supply cylinder of the cutting fluid supply device is usually a single-cylinder structure, that is, there is only one cutting fluid containing chamber with a fixed capacity. During the cutting operation, the impurity concentration in the supply cylinder will gradually increase. When changing production (changing the workpiece to be cut), or when the impurity concentration reaches a preset condition, it is necessary to discharge the waste liquid in the supply cylinder, inject new cutting fluid into the supply cylinder, clean the supply cylinder and the cutting chamber, and finally refill with new cutting fluid. The cutting fluid supply device has a long production change time. Utility Model Content

[0004] In view of the above problems, the present invention proposes a cutting liquid supply device and a wire cutting machine that at least partially solve the above problems, aiming to solve the problem of long replacement time of the cutting liquid supply device in the prior art.

[0005] Specifically, the utility model provides the following technical solutions:

[0006] A cutting liquid supply device is used to provide cutting liquid to a cutting chamber, and includes M liquid supply branches. Each of the liquid supply branches includes: a receiving chamber, a liquid adding port, a liquid supply port, a liquid return port, and a liquid discharge port connected to the receiving chamber, and a liquid adding valve arranged at the liquid adding port, a liquid supply valve arranged at the liquid supply port, a liquid return valve arranged at the liquid return port, and a liquid discharge valve arranged at the liquid discharge port.

[0007] Wherein, M is an integer greater than 1. The liquid adding port is configured to inject the cutting liquid into the accommodating chamber, the liquid supply port is configured to be connected to a spray pipe of the cutting chamber, the liquid return port is configured to be connected to a liquid discharge pipe of the cutting chamber, and the liquid discharge port is configured to discharge the cutting liquid in the accommodating chamber.

[0008] Optionally, M is greater than or equal to 3. The liquid supply device further includes N serial pipes, the two ends of which are respectively connected to the accommodation chambers of the two liquid supply branches, and there is no more than one serial pipe between the accommodation chambers of any two liquid supply branches. Wherein, N is a positive integer, and N is less than or equal to M-2.

[0009] Optionally, a series connection pipe is provided between the accommodating chambers of at least two of the liquid supply branches, and a series connection valve is provided on each of the series connection pipes.

[0010] Optionally, the accommodating chambers of the M liquid supply branches are sequentially connected in series through N serial tubes, where N=M-1.

[0011] Optionally, the series connection tube is provided between the accommodating chambers of any two of the liquid supply branches.

[0012] Optionally, M is greater than or equal to 3. The M liquid supply branches at least include a first liquid supply branch, a second liquid supply branch and a third liquid supply branch. The first liquid supply branch includes a first accommodating chamber, the second liquid supply branch includes a second accommodating chamber, and the third liquid supply branch includes a third accommodating chamber.

[0013] N is equal to 1, and two ends of the serial tube are connected to the first accommodating chamber and the second accommodating chamber respectively.

[0014] Optionally, M is greater than or equal to 3, N is equal to 2, and the two ends of one of the serial tubes are respectively connected to the first accommodating chamber and the second accommodating chamber, and the two ends of the other serial tube are respectively connected to the second accommodating chamber and the third accommodating chamber.

[0015] Optionally, M is greater than or equal to 3, N is equal to 3, and the first accommodating chamber, the second accommodating chamber and the third accommodating chamber are connected in pairs through three serial tubes.

[0016] Optionally, each of the accommodating cavities has two ends of each of the serial pipes arranged horizontally. For each of the accommodating cavities, one end of the serial pipe connected to the accommodating cavity is higher than the liquid supply port connected to the accommodating cavity.

[0017] Optionally, each of the accommodating chambers has two ends of each of the serial pipes arranged horizontally. For each of the accommodating chambers, one end of the serial pipe connected to the accommodating chamber is lower than the liquid return port connected to the accommodating chamber.

[0018] Optionally, for each of the accommodating cavities, the liquid return port connected to the accommodating cavity is higher than the liquid supply port connected to the accommodating cavity.

[0019] Optionally, each of the accommodating cavities is: For each of the accommodating cavities, the liquid discharge port connected to the accommodating cavities is lower than the liquid supply port connected to the accommodating cavities.

[0020] Optionally, each of the accommodating chambers is vertically arranged. For each of the accommodating chambers, the liquid supply port connected to the accommodating chamber is higher than the liquid return port connected to the accommodating chamber.

[0021] Optionally, the liquid supply device further comprises a liquid supply main pipe communicating with all the liquid supply ports, the liquid supply main pipe is located downstream of all the liquid supply valves, and the liquid supply main pipe is connected to the spray pipe.

[0022] Optionally, the liquid supply device further comprises a liquid return main pipe communicating with all the liquid return ports, the liquid return main pipe is located upstream of all the liquid return valves, and the liquid return main pipe is connected to the liquid discharge pipe.

[0023] Optionally, the liquid supply device further comprises a discharge manifold connected to all the liquid discharge ports, and the discharge manifold is located downstream of all the liquid discharge valves.

[0024] Optionally, the liquid supply device further includes M liquid level detection devices, each of which is configured to detect the liquid level of the cutting liquid in the accommodating chamber of one of the liquid supply branches.

[0025] Optionally, the liquid supply device includes at least one liquid supply cylinder, and one or more accommodating chambers are formed in each of the liquid supply cylinders.

[0026] On the other hand, the present application also provides a wire cutting machine, which includes a cutting chamber and the above-mentioned cutting liquid supply device.

[0027] The present application provides a cutting liquid supply device, which is provided with at least two liquid supply branches, each of which has a receiving chamber, and a liquid filling port, a liquid supply port, a liquid return port, a liquid discharge port, a liquid filling valve, a liquid supply valve, a liquid return valve and a liquid discharge valve corresponding to the receiving chamber. That is, at least two liquid supply branches are configured to independently provide cutting liquid to the cutting chamber. When performing a cutting operation, by adjusting the valve, at least one liquid supply branch can provide cutting liquid to the cutting chamber. At the same time, at least one liquid supply branch performs preparatory work such as discharging waste liquid, injecting new cutting liquid into its receiving chamber and cleaning its receiving chamber. In other words, it can be ensured that most of the time, there is at least one liquid supply branch that can provide new cutting liquid. In this way, when changing production, it is only necessary to clean the cutting chamber through the liquid supply branch with new cutting liquid. Compared with a cutting liquid supply device with a single cylinder structure, it can save the time of multiple times of pouring new cutting liquid into the receiving chamber, and can save the time of cleaning the receiving chamber, thereby achieving the effect of shortening the production change time.

[0028] Furthermore, the cutting liquid supply device provided by the present application is also provided with a series pipe, and the two ends of the series pipe are respectively connected to the receiving chambers of the two liquid supply branches, so that the two receiving chambers form a series structure. When performing a cutting operation, by adjusting the valve, the cutting liquid containing impurities in the cutting chamber can enter from the return liquid port of the upstream receiving chamber through the drainage pipe, and the larger impurities in the cutting liquid are deposited in the upstream receiving chamber, and then enter the downstream receiving chamber through the series pipe, and then enter the spray pipe of the cutting chamber through the liquid supply port of the downstream receiving chamber. In this way, the impurities in the cutting liquid entering the spray pipe of the cutting chamber can be reduced, thereby reducing the risk of wire jumper and wire breakage during the cutting operation.

[0029] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0031] Figure 1 is a schematic structural diagram of a liquid supply device according to an embodiment of the utility model;

[0032] Figure 2 is a schematic structural diagram of a liquid supply device according to another embodiment of the utility model;

[0033] Figure 3 is a schematic structural diagram of a liquid supply device according to another embodiment of the utility model;

[0034] Figure 4 is a schematic top view of a liquid supply device according to an embodiment of the utility model;

[0035] Figure 5 It is a schematic side view of a liquid supply device according to an embodiment of the utility model.

[0036] List of reference numerals:

[0037] 10. First liquid supply branch; 11. First accommodating chamber; 12. First liquid adding port; 13. First liquid supply port; 14. First liquid return port; 15. First liquid discharge port; 16. First liquid adding valve; 17. First liquid supply valve; 18. First liquid return valve; 19. First liquid discharge valve; 20. Second liquid supply branch; 21. Second accommodating chamber; 22. Second liquid adding port; 23. Second liquid supply port; 24. Second liquid return port; 25. Second liquid discharge port; 26. Second liquid adding valve; 27. Second liquid supply valve; 28. Second liquid return port Valve; 29, second liquid discharge valve; 30, third liquid supply branch; 31, third accommodating chamber; 32, third liquid adding port; 33, third liquid supply port; 34, third liquid return port; 35, third liquid discharge port; 36, third liquid adding valve; 37, third liquid supply valve; 38, third liquid return valve; 39, third liquid discharge valve; 51, first serial pipe; 52, first serial valve; 61, second serial pipe; 62, second serial valve; 71, liquid supply main pipe; 72, liquid return main pipe; 80, liquid level detection device; 90, liquid supply cylinder. DETAILED DESCRIPTION

[0038] Refer to the following Figures 1 to 5 The cutting liquid supply device and the wire cutting machine of the embodiment of the utility model are described. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0039] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0040] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] Figure 1 is a schematic structural diagram of a liquid supply device according to an embodiment of the utility model, such as Figure 1 As shown, combined with Figure 2-5 The utility model provides a cutting liquid supply device for supplying cutting liquid to a cutting chamber, comprising M liquid supply branches. Each liquid supply branch comprises: a receiving chamber, a liquid adding port, a liquid supply port, a liquid return port and a liquid discharge port connected to the receiving chamber, and a liquid adding valve arranged at the liquid adding port, a liquid supply valve arranged at the liquid supply port, a liquid return valve arranged at the liquid return port and a liquid discharge valve arranged at the liquid discharge port.

[0043] Wherein, M is an integer greater than 1. The liquid adding port is configured to inject cutting liquid into the containing chamber, the liquid supply port is configured to be connected to the spray pipe of the cutting chamber, the liquid return port is configured to be connected to the liquid discharge pipe of the cutting chamber, and the liquid discharge port is configured to discharge the cutting liquid in the containing chamber.

[0044] refer to Figure 1 , Figure 1In the cutting liquid supply device shown, M=3, and the three liquid supply branches are respectively the first liquid supply branch 10, the second liquid supply branch 20 and the third liquid supply branch 30. Among them, the first liquid supply branch 10 includes a first accommodating chamber 11, a first liquid adding port 12, a first liquid supply port 13, a first liquid return port 14 and a first liquid discharge port 15, and also includes a first liquid adding valve 16, a first liquid supply valve 17, a first liquid return valve 18 and a first liquid discharge valve 19. The second liquid supply branch 20 includes a second accommodating chamber 21, a second liquid adding port 22, a second liquid supply port 23, a second liquid return port 24 and a second liquid discharge port 25, and also includes a second liquid adding valve 26, a second liquid supply valve 27, a second liquid return valve 28 and a second liquid discharge valve 29. The third liquid supply branch 30 includes a third accommodating chamber 31 , a third liquid adding port 32 , a third liquid supply port 33 , a third liquid return port 34 and a third liquid discharge port 35 , and also includes a third liquid adding valve 36 , a third liquid supply valve 37 , a third liquid return valve 38 and a third liquid discharge valve 39 .

[0045] New cutting fluid can be injected into the first liquid filling port 12, the second liquid filling port 22 and the third liquid filling port 32. The new cutting fluid can be a newly prepared cutting fluid that does not contain impurities such as silicon powder and cutting wire ends, or it can be a cutting fluid that meets cutting requirements obtained by filtering and purifying the recycled cutting fluid.

[0046] The first liquid supply port 13, the second liquid supply port 23 and the third liquid supply port 33 are all connected to the spray pipe of the cutting chamber, and are used to spray cutting liquid on the cutting tool and the workpiece to be cut during the cutting operation to lubricate and cool them.

[0047] The first liquid return port 14, the second liquid return port 24 and the third liquid return port 34 are all connected to the liquid discharge pipe of the cutting chamber, and are used to re-inject the cutting liquid recovered from the cutting chamber into the accommodating cavity.

[0048] During the cutting operation, as the cutting fluid recovered from the cutting chamber is continuously re-injected into the receiving chamber, the concentration of impurities in the cutting fluid in the receiving chamber will gradually increase. Cutting fluid containing high concentrations of impurities sprayed onto the cutting tool and the workpiece to be cut will affect the cutting quality and may also bring risks such as wire jumper breakage. After the concentration reaches the preset conditions, it is no longer suitable to be provided to the cutting chamber, and the waste liquid needs to be discharged in time. The first receiving chamber 11, the second receiving chamber 21 and the third receiving chamber 31 discharge the cutting fluid through the first drain port 15, the second drain port 25 and the third drain port 35 respectively, for example, into an accident pool.

[0049] In this embodiment, each valve is used to control the opening and closing of the corresponding cutting fluid flow channel. Each valve can be a manual valve or an automatic valve, and the automatic valve is electrically connected to the controller to achieve automatic control of each valve.

[0050] Below Figure 1 Taking as an example, the working process of the cutting liquid supply device of this embodiment is exemplarily described.

[0051] In the preparation stage of the cutting operation, for the first liquid supply branch 10, the first liquid adding valve 16 is opened, the first liquid supply valve 17, the first liquid return valve 18 and the first liquid discharge valve 19 are closed, and new cutting liquid is added to the first accommodating chamber 11. When the liquid level reaches the requirement, the first liquid adding valve 16 is closed. At this time, the first liquid supply branch 10 is ready.

[0052] While the first liquid supply branch 10 is preparing, the second liquid supply branch 20 and / or the third liquid supply branch 30 can also be preparing. It should be noted that when the three liquid supply branches are filled with new cutting fluid at the same time, the load of the new cutting fluid supply device is large, which may cause the flow rate of each liquid filling port to decrease.

[0053] In the present embodiment, when the specification of the new cutting fluid providing device is larger, the three liquid supply branches can be prepared at the same time to shorten the preparation time. When the specification of the new cutting fluid providing device is smaller, the three liquid supply branches can be prepared in sequence by adjusting each valve.

[0054] In particular, when the specifications of the new cutting fluid supply equipment are small, one of the liquid supply branches can be prepared first, for example, the new cutting fluid can be added to the first accommodating chamber 11 first. When the first accommodating chamber 11 is filled, the preparation work is completed and the cutting operation can be started directly. At this time, the first liquid supply valve 17 and the first liquid return valve 18 are opened, and the first liquid supply port 13 provides cutting fluid to the cutting chamber. The cutting fluid recovered by the cutting chamber is re-injected into the first accommodating chamber 11 through the first liquid return port 14, and the cycle continues. During the cutting operation, the second accommodating chamber 21 and the third accommodating chamber 31 are prepared to be filled with new cutting fluid in turn. In this way, the preparation time for the cutting operation can be shortened.

[0055] During the cutting operation, the concentration of impurities in the cutting liquid in the first accommodating chamber 11 gradually increases. When the concentration reaches a preset condition, the liquid supply branch switching operation starts.

[0056] Exemplarily, the switching from the first liquid supply branch 10 to the second liquid supply branch 20 is taken as an example for description.

[0057] First, while ensuring that there is new cutting fluid or cutting fluid with a low impurity concentration in the second accommodating chamber 21, open the second liquid supply valve 27 and the second liquid return valve 28, and the second liquid supply port 23 provides cutting fluid to the cutting chamber. The cutting fluid recovered in the cutting chamber is re-injected into the second accommodating chamber 21 through the second liquid return port 24, and the cycle continues. Then close the first liquid supply valve 17 and open the first liquid return valve 18, and open the first liquid discharge valve 19 to discharge the waste liquid in the first accommodating chamber 11 through the first liquid discharge port 15. After the waste liquid in the first accommodating chamber 11 is completely discharged, close the first liquid discharge valve 19, open the first liquid return valve 18, re-inject new cutting fluid into the first accommodating chamber 11, and use the new cutting fluid to clean the first accommodating chamber 11, and then open the first liquid discharge valve 19 to discharge the cleaned cutting fluid. Finally, close the first liquid discharge valve 19, open the first liquid return valve 18, and re-inject new cutting fluid into the first accommodating chamber 11 for standby use.

[0058] During the cutting operation, each liquid supply branch can be used in turn, and it can be ensured that at any time, at least one liquid supply branch has new cutting fluid.

[0059] It should be noted that during the cutting operation, two liquid supply branches can be activated at the same time to supply liquid to the cutting chamber, and the other liquid supply branch is used as a standby or for cleaning or filling with new cutting fluid.

[0060] When changing production, the cutting chamber can be cleaned using the liquid supply branch with new cutting fluid, while the liquid supply branch with waste fluid can be drained of waste fluid, cleaned and filled with new cutting fluid. The specific operations can be referred to above and will not be repeated here.

[0061] The cutting liquid supply device of this embodiment is provided with at least two liquid supply branches, each of which has a receiving chamber, and a liquid adding port, a liquid supply port, a liquid return port, a liquid discharge port, a liquid adding valve, a liquid supply valve, a liquid return valve and a liquid discharge valve corresponding to the receiving chamber. That is, at least two liquid supply branches are configured to independently provide cutting liquid to the cutting chamber. When performing a cutting operation, by adjusting the valve, at least one liquid supply branch can provide cutting liquid to the cutting chamber. At the same time, at least one liquid supply branch performs preparatory work such as discharging waste liquid, injecting new cutting liquid into its receiving chamber and cleaning its receiving chamber. In other words, it can be ensured that most of the time, at least one liquid supply branch can provide new cutting liquid. In this way, when changing production, it is only necessary to clean the cutting chamber through the liquid supply branch with new cutting liquid. Compared with a cutting liquid supply device with a single cylinder structure, it can save the time of multiple times of pouring new cutting liquid into the single cylinder, and can save the time of cleaning the single cylinder. The effect of shortening the production change time is achieved.

[0062] In some embodiments of the liquid supply device of the present utility model, Figure 2-4 As shown, M is greater than or equal to 3.

[0063] The liquid supply device further includes N serial pipes, the two ends of which are respectively connected to the receiving chambers of the two liquid supply branches, and there is no more than one serial pipe between the receiving chambers of any two liquid supply branches. N is a positive integer, and N is less than or equal to M-2.

[0064] In this embodiment, the serial pipe is used to form a series connection between two accommodating chambers. Only one serial pipe is provided between the two accommodating chambers to form a series connection, and there is no need to repeatedly provide multiple serial pipes. When the two accommodating chambers are connected in series through the serial pipe, the cutting fluids inside them can be connected and mixed.

[0065] When M is greater than or equal to 3, and N is less than or equal to M-2, it can be ensured that at least two mutually independent accommodating cavity groups are formed among the M accommodating cavities, wherein each accommodating cavity in the accommodating cavity group is connected through one or more serial tubes. For example, when M=4, N is equal to 2 or equal to 1, that is, four accommodating cavities can form three or two accommodating cavity groups.

[0066] Below Figure 2 Taking as an example, the working process of the cutting liquid supply device of this embodiment is exemplarily described.

[0067] Figure 2 The cutting fluid supply device is Figure 1 On the basis of the cutting liquid supply device, a first serial pipe 51 is connected between the first accommodating chamber 11 and the second accommodating chamber 21, that is, M=3, N=1. At this time, the first accommodating chamber 11 and the second accommodating chamber 21 form an accommodating chamber group, which is independent of the third accommodating chamber 31.

[0068] During the cutting operation, the first liquid return valve 18 and the second liquid supply valve 27 are opened, and the first liquid supply valve 17, the second liquid return valve 28, the third liquid return valve 38 and the third liquid supply valve 37 are closed. At this time, the cutting liquid in the second accommodating chamber 21 enters the cutting chamber through the second liquid supply port 23, enters the first accommodating chamber 11 through the first liquid return port 14, and then enters the second accommodating chamber 21 through the first serial pipe 51, forming a cycle.

[0069] When the first liquid supply branch 10 and the second liquid supply branch 20 supply liquid to the cutting chamber, the third liquid supply branch 30 can perform processes such as injecting new cutting liquid, cleaning the containing cavity, and discharging waste liquid.

[0070] In this embodiment, after the cutting fluid containing impurities in the cutting chamber enters the first accommodating chamber 11 through the first liquid return port 14, the larger impurities in the cutting fluid will be deposited at the bottom of the first accommodating chamber 11, and the cutting fluid without larger impurities will enter the second accommodating chamber 21 through the first serial pipe 51, and then enter the spray pipe of the cutting chamber through the second liquid supply port 23. In this way, the impurities in the cutting fluid entering the spray pipe of the cutting chamber can be reduced, thereby reducing the risk of wire jumper breakage during cutting operations.

[0071] In some embodiments of the liquid supply device of the present utility model, Figure 2-4 As shown, the liquid supply device also includes N serial pipes, and the two ends of the serial pipes are respectively connected to the accommodating chambers of the two liquid supply branches. N is a positive integer. A serial valve is provided on each serial pipe.

[0072] In this embodiment, a serial connection valve is provided on each serial connection pipe. When the serial connection valve is closed, the serial connection pipe is not connected, and when the serial connection valve is opened, the serial connection pipe is connected to the two accommodating chambers. Since the serial connection valve is provided, N is not limited in this embodiment.

[0073] For example, when M is equal to 2, N may be equal to 1. When the series connection valve is closed, the accommodating chambers of the two liquid supply branches are independent of each other. When the series connection valve is opened, the two accommodating chambers are connected in series.

[0074] For example, when M is equal to 3, N can be equal to 1. When the series valve is closed, the three liquid supply branches are independent of each other. When the series valve is opened, two of the accommodating chambers of the three liquid supply branches form a series structure, that is, a accommodating chamber group is formed, and the accommodating chamber group is independent of the accommodating chamber of the third liquid supply branch.

[0075] Exemplarily, when M is equal to 3, N can be equal to 3. The three series-connected valves can realize the series connection between the accommodating chambers of the three liquid supply branches. When the three series-connected valves are all closed, the three liquid supply branches are independent of each other. When only one series-connected valve is opened, two of the accommodating chambers of the three liquid supply branches form a series structure, that is, a accommodating chamber group is formed, and the accommodating chamber group is independent of the accommodating chamber of the third liquid supply branch. When two series-connected valves are opened, the accommodating chambers of the three liquid supply branches form a series structure in sequence, that is, a accommodating chamber group is formed. When three series-connected valves are opened, the accommodating chambers of the three liquid supply branches form a series and parallel structure.

[0076] In some embodiments of the liquid supply device of the present utility model, Figure 3 As shown, M is greater than or equal to 3. The M liquid supply branches include a first liquid supply branch 10, a second liquid supply branch 20, and a third liquid supply branch 30. The first liquid supply branch 10 includes a first accommodating chamber 11, the second liquid supply branch 20 includes a second accommodating chamber 21, and the third liquid supply branch 30 includes a third accommodating chamber 31. N is equal to 2, wherein the two ends of one serial tube are respectively connected to the first accommodating chamber 11 and the second accommodating chamber 21, and the two ends of the other serial tube are respectively connected to the second accommodating chamber 21 and the third accommodating chamber 31.

[0077] Below Figure 3 Taking as an example, the working process of the cutting liquid supply device of this embodiment is exemplarily described.

[0078] Figure 3In the cutting liquid supply device, M=3, N=2. The three liquid supply branches are respectively the first liquid supply branch 10, the second liquid supply branch 20 and the third liquid supply branch 30. Among them, the first liquid supply branch 10 includes a first accommodating chamber 11, a first liquid addition port 12, a first liquid supply port 13, a first liquid return port 14 and a first liquid discharge port 15, and also includes a first liquid addition valve 16, a first liquid supply valve 17, a first liquid return valve 18 and a first liquid discharge valve 19. The second liquid supply branch 20 includes a second accommodating chamber 21, a second liquid addition port 22, a second liquid supply port 23, a second liquid return port 24 and a second liquid discharge port 25, and also includes a second liquid addition valve 26, a second liquid supply valve 27, a second liquid return valve 28 and a second liquid discharge valve 29. The third liquid supply branch 30 includes a third accommodating chamber 31, a third liquid adding port 32, a third liquid supply port 33, a third liquid return port 34 and a third liquid discharge port 35, and also includes a third liquid adding valve 36, a third liquid supply valve 37, a third liquid return valve 38 and a third liquid discharge valve 39. The liquid supply device also includes a first serial pipe 51, a first serial valve 52, a second serial pipe 61 and a second serial valve 62. The two ends of the first serial pipe 51 are connected to the first accommodating chamber 11 and the second accommodating chamber 21 respectively, and the two ends of the second serial pipe 61 are connected to the second accommodating chamber 21 and the third accommodating chamber 31 respectively.

[0079] During the cutting operation, the first liquid return valve 18, the first series valve 52 and the second liquid supply valve 27 can be opened, and the first liquid supply valve 17, the second liquid return valve 28, the third liquid return valve 38, the second series valve 62 and the third liquid supply valve 37 can be closed. At this time, the cutting liquid in the second accommodating chamber 21 enters the cutting chamber through the second liquid supply port 23, enters the first accommodating chamber 11 through the first liquid return port 14, and then enters the second accommodating chamber 21 through the first series pipe 51, forming a cycle. When the first liquid supply branch 10 and the second liquid supply branch 20 supply liquid to the cutting chamber, the third liquid supply branch 30 can perform processes such as injecting new cutting liquid, cleaning the accommodating chamber, and discharging waste liquid. In this way, the production change time can be reduced, and the impurities in the cutting liquid in the spray pipe entering the cutting chamber can be reduced, thereby reducing the risk of wire jumper breakage during the cutting operation.

[0080] When the concentration of impurities in the cutting fluid in the first accommodating chamber 11 reaches a certain condition, at least two operation schemes can be performed to achieve waste liquid removal and cleaning, which are described below respectively:

[0081] The first solution: close the first liquid return valve 18, the first serial valve 52 and the second liquid supply valve 27, and open the second liquid return valve 28, the second serial valve 62 and the third liquid supply valve 37. At this time, the cutting liquid in the third accommodating chamber 31 enters the cutting chamber through the third liquid supply port 33, enters the second accommodating chamber 21 through the second liquid return port 24, and then enters the third accommodating chamber 31 through the second serial pipe 61, forming a cycle. Then open the first liquid discharge valve 19, discharge the waste liquid in the first accommodating chamber 11, open the first liquid filling valve 16, and clean the first accommodating chamber 11. Then close the first liquid discharge valve 19, open the first liquid filling valve 16, and re-inject new cutting liquid into the first accommodating chamber 11.

[0082] This solution can ensure that larger impurities are located in the second accommodating chamber 21 and do not enter the third accommodating chamber 31 and the cutting chamber, thereby reducing the risk of jumper wire breakage.

[0083] The second solution: close the first liquid return valve 18 and the second liquid supply valve 27, make sure that the second liquid return valve 28, the first liquid supply valve 17 and the second serial valve 62 are in the closed state, and open the third liquid return valve 38 and the third liquid supply valve 37. At this time, the cutting liquid in the third accommodating chamber 31 enters the cutting chamber through the third liquid supply port 33, and enters the third accommodating chamber 31 through the third liquid return port 34, forming a cycle. Then open the first liquid discharge valve 19 and the second liquid discharge valve 29, discharge the waste liquid in the first accommodating chamber 11 and the second accommodating chamber 21, open the first liquid addition valve 16 and the second liquid addition valve 26, and clean the first accommodating chamber 11 and the second accommodating chamber 21. Then close the first liquid discharge valve 19 and the second liquid discharge valve 29, open the first liquid addition valve 16 and the second liquid addition valve 26, and re-inject new cutting liquid into the first accommodating chamber 11 and the second accommodating chamber 21.

[0084] This solution can provide new cutting fluid to the cutting chamber when switching the fluid supply branch, thereby improving the cutting quality and reducing the risk of wire breakage due to jumper wires.

[0085] Of course, when performing cutting operations, the first liquid return valve 18, the first liquid supply valve 17, the second liquid return valve 28 and the second liquid supply valve 27 can also be opened, and the first series valve 52, the second series valve 62, the third liquid return valve 38 and the third liquid supply valve 37 can be closed. At this time, the first liquid supply branch 10 and the second liquid supply branch 20 both supply liquid to the cutting chamber, and the third liquid supply branch 30 can be used to inject new cutting liquid, clean the receiving chamber, and discharge waste liquid.

[0086] Of course, when performing cutting operations, the first liquid return valve 18 and the first liquid supply valve 17 can be opened, and the second liquid return valve 28, the second liquid supply valve 27, the first series valve 52, the second series valve 62, the third liquid return valve 38 and the third liquid supply valve 37 can be closed. At this time, the first liquid supply branch 10 supplies liquid to the cutting chamber, and the second liquid supply branch 20 and the third liquid supply branch 30 can perform processes such as filling new cutting liquid, cleaning the receiving chamber, and discharging waste liquid.

[0087] In some embodiments of the liquid supply device of the present utility model, Figure 5 As shown, each accommodating cavity is vertically arranged. Both ends of each serial pipe are horizontally arranged. For each accommodating cavity connected with a serial pipe, one end of the serial pipe used to connect the accommodating cavity is higher than the liquid supply port connected to the accommodating cavity.

[0088] When the accommodating chamber is arranged vertically, the concentration of impurities such as cutting wire ends contained in the cutting fluid is positively correlated with the concentration. One end of the serial tube connected to the accommodating chamber is higher than the liquid supply port of the accommodating chamber, so that the cutting fluid with a lower concentration of impurities at a higher position in the upstream accommodating chamber can enter the downstream accommodating chamber and then enter the cutting chamber.

[0089] In some embodiments of the liquid supply device of the present utility model, Figure 2-3 As shown, each accommodating cavity is vertically arranged. Both ends of each serial pipe are horizontally arranged. For each accommodating cavity connected with a serial pipe, one end of the serial pipe used to connect the accommodating cavity is lower than the liquid return port connected to the accommodating cavity.

[0090] In this embodiment, the liquid return port is relatively high. On the one hand, it can prevent impurities at the bottom of the accommodating chamber from being washed to the high liquid level. On the other hand, impurities in the cutting fluid injected from the liquid return port move downward under the action of inertia and are easily deposited at the bottom of the accommodating chamber.

[0091] In some embodiments of the liquid supply device of the present utility model, Figure 1-3 As shown, each accommodating cavity is vertically arranged. For each accommodating cavity, the liquid return port connected to the accommodating cavity is higher than the liquid supply port connected to the accommodating cavity.

[0092] The liquid return port is higher than the liquid supply port, so that the accommodating cavity can store a certain volume of cutting liquid to continuously supply it to the cutting chamber.

[0093] In some embodiments of the liquid supply device of the present utility model, Figure 1-3 As shown, each accommodating cavity is vertically arranged. For each accommodating cavity, the liquid discharge port connected to the accommodating cavity is lower than the liquid supply port connected to the accommodating cavity.

[0094] The drain port is relatively low and can discharge impurities deposited at the bottom of the accommodating chamber. Preferably, the drain port is arranged at the bottom of the accommodating chamber.

[0095] The liquid supply port is higher than the liquid discharge port, which can prevent impurities deposited at the bottom of the accommodating cavity from being supplied to the cutting chamber along with the cutting liquid, thereby reducing the cutting quality.

[0096] In some embodiments of the liquid supply device of the utility model, each accommodating cavity is vertically arranged. For each accommodating cavity, the liquid supply port connected to the accommodating cavity is higher than the liquid return port connected to the accommodating cavity.

[0097] The liquid supply port is higher than the liquid return port, so that the cutting liquid with less impurities at a higher position in the accommodating chamber can enter the cutting chamber through the liquid supply port, which helps to improve the cutting quality and thus improve the cutting yield. Figure 1-4 As shown, the liquid supply device also includes a liquid supply main pipe 71 connected to all liquid supply ports, the liquid supply main pipe 71 is located downstream of all liquid supply valves, and the liquid supply main pipe 71 is connected to the spray pipe. The liquid supply main pipe 71 can also be connected to the inlet of the cutting liquid circulation pipeline pump and then enter the spray pipe. The liquid supply main pipe 71 of this embodiment can save the number of pipes and reduce equipment costs.

[0098] In some embodiments of the liquid supply device of the present utility model, Figure 1-4 As shown, the liquid supply device also includes a liquid return main pipe 72 connected to all liquid return ports, the liquid return main pipe 72 is located upstream of all liquid return valves, and the liquid return main pipe 72 is connected to the liquid discharge pipe. The liquid return main pipe 72 of this embodiment can save the number of pipes and reduce equipment costs.

[0099] In some embodiments of the liquid supply device of the utility model, the liquid supply device further comprises a discharge main pipe (not shown in the drawings) connected to all the liquid discharge ports, and the discharge main pipe is located downstream of all the liquid discharge valves. The discharge main pipe of this embodiment can save the number of pipes and reduce the equipment cost.

[0100] In some embodiments of the liquid supply device of the present utility model, Figure 1-5 As shown, the liquid supply device further includes M liquid level detection devices 80, each of which is configured to detect the liquid level of the cutting liquid in the accommodating chamber of a liquid supply branch.

[0101] The liquid level detection device 80 may be a liquid level meter, etc. The liquid level detection device 80 may be electrically connected to the controller, and cooperate with various automatic valves electrically connected to the controller to realize automatic liquid supply, cleaning and other processes.

[0102] In some embodiments of the liquid supply device of the present utility model, Figure 1-5 As shown, the liquid supply device includes at least one liquid supply cylinder 90, and one or more accommodating chambers are formed in each liquid supply cylinder 90.

[0103] In this embodiment, one or more accommodating chambers can be arranged at intervals in a liquid supply cylinder 90, so that the overall structure of the liquid supply device is compact, the amount of pipe material used is reduced, and the equipment cost is reduced.

[0104] In some embodiments of the liquid supply device of the utility model, the liquid supply device is a mobile device, which is moved by a loading tray and casters to flexibly supply liquid to each cutting chamber according to production needs.

[0105] In some embodiments of the wire cutting machine of the utility model, the wire cutting machine includes a cutting chamber and the above-mentioned cutting liquid supply device. The cutting chamber may be provided with a spray pipe, a cutting liquid circulation pipe pump, a drainage pipe, etc. The wire cutting machine may be a diamond wire slicing machine, a diamond wire squarer, etc.

[0106] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A cutting liquid supply device for providing cutting liquid to a cutting chamber, characterized in that: include: M liquid supply branches, each of which comprises: a receiving chamber, a liquid adding port, a liquid supply port, a liquid return port and a liquid discharge port connected to the receiving chamber, and a liquid adding valve arranged at the liquid adding port, a liquid supply valve arranged at the liquid supply port, a liquid return valve arranged at the liquid return port and a liquid discharge valve arranged at the liquid discharge port; Wherein, M is an integer greater than 1; the liquid filling port is configured to inject the cutting fluid into the accommodating chamber, the liquid supply port is configured to be connected to a spray pipe of the cutting chamber, the liquid return port is configured to be connected to a drainage pipe of the cutting chamber, and the drainage port is configured to discharge the cutting fluid in the accommodating chamber.

2. The liquid supply device according to claim 1, characterized in that: M is greater than or equal to 3; The liquid supply device further includes N serial pipes, the two ends of each serial pipe are respectively connected to the accommodation chambers of the two liquid supply branches, and there is no more than one serial pipe between the accommodation chambers of any two liquid supply branches; Wherein, N is a positive integer, and N is less than or equal to M-2.

3. The liquid supply device according to claim 1, characterized in that: A series connection pipe is arranged between the accommodating chambers of at least two of the liquid supply branches, and a series connection valve is arranged on each of the series connection pipes.

4. The liquid supply device according to claim 3, characterized in that: The accommodating chambers of the M liquid supply branches are sequentially connected in series through N serial pipes, where N=M-1; or The series connection tube is arranged between the accommodating chambers of any two of the liquid supply branches.

5. The liquid supply device according to claim 3, characterized in that: M is greater than or equal to 3; the M liquid supply branches at least include a first liquid supply branch, a second liquid supply branch and a third liquid supply branch; wherein the first liquid supply branch includes a first accommodating chamber, the second liquid supply branch includes a second accommodating chamber, and the third liquid supply branch includes a third accommodating chamber; and There are two serial tubes, wherein two ends of one of the serial tubes are respectively connected to the first accommodating chamber and the second accommodating chamber, and two ends of the other serial tube are respectively connected to the second accommodating chamber and the third accommodating chamber.

6. The liquid supply device according to claim 2 or 3, characterized in that: Each of the accommodating chambers is vertically arranged; both ends of each of the serial tubes are horizontally arranged; for each of the accommodating chambers connected with the serial tubes, One end of the serial pipe connected to the accommodating chamber is higher than the liquid supply port connected to the accommodating chamber; and / or One end of the serial pipe connected to the accommodating chamber is lower than the liquid return port connected to the accommodating chamber.

7. The liquid supply device according to claim 1, characterized in that: Each of the accommodating cavities is arranged vertically; for each of the accommodating cavities, The liquid return port connected to the accommodating chamber is higher than the liquid supply port connected to the accommodating chamber; and / or The liquid discharge port connected to the accommodating cavity is lower than the liquid supply port connected to the accommodating cavity.

8. The liquid supply device according to claim 1, characterized in that: Each of the accommodating cavities is arranged vertically; for each of the accommodating cavities, The liquid supply port connected to the accommodating chamber is higher than the liquid return port connected to the accommodating chamber.

9. The liquid supply device according to claim 1, characterized in that: The liquid supply device also includes: a liquid supply main pipe connected to all the liquid supply ports, the liquid supply main pipe being located downstream of all the liquid supply valves, and the liquid supply main pipe being connected to the spray pipe; and / or a liquid return main pipe connected to all the liquid return ports, the liquid return main pipe being located upstream of all the liquid return valves, the liquid return main pipe being connected to the liquid discharge pipe; and / or A discharge main pipe is connected to all the discharge ports, and the discharge main pipe is located downstream of all the discharge valves.

10. The liquid supply device according to claim 1, characterized in that: The liquid supply device further comprises M liquid level detection devices, each of which is configured to detect the liquid level of the cutting liquid in the accommodating chamber of one of the liquid supply branches.

11. The liquid supply device according to claim 1, characterized in that: The liquid supply device comprises at least one liquid supply cylinder, and one or more accommodating chambers are formed in each of the liquid supply cylinders.

12. A wire cutting machine, characterized in that: It comprises a cutting chamber and a cutting liquid supply device as claimed in any one of claims 1 to 11.

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