Cutting fluid distribution valve of turning and milling center tool magazine

Abstract

The invention discloses a turning and milling center tool magazine cutting fluid distribution valve which comprises a valve body, a valve element, a valve sleeve and a gland, the distribution valve is used for controlling spraying of cutting fluid of m rows of tools on a tool magazine, n tools are arranged in each row, an inner hole of the valve element is connected with a cutting fluid pump through a right-angle water inlet pipe, M rows of radial water outlet holes are evenly formed in the inner hole of the valve body, and N radial water outlet holes are formed in each row. All the water outlet holes are communicated with N * M output connectors at the upper end of the valve body and connected to cutting fluid nozzles of all tools of the tool magazine body through N * M hoses, and a radial water injection hole is formed in the upper end of the valve element. The distribution valve which is small in size and can be installed near the tool magazine is designed, an output pipeline of the distribution valve needs to be conveniently connected to cutting fluid nozzles of all tools of the tool magazine, tool selection rotation motion of the tool magazine can be utilized for action of the valve so as to simplify the structure, and meanwhile B-axis tool feeding rotation motion of the tool magazine needs to be tracked so as to keep cooling of the selected tools.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid control valves, and in particular to a cutting fluid distribution valve for a tool magazine of a milling center, and in particular to a distribution valve specifically used for controlling the spraying of coolant on a designated tool on the tool magazine, wherein the tool magazine is a tool magazine that can be equipped with a large number of tools, and tool change can be achieved by rotation or translation of the tool magazine, and B-axis rotation can be performed to adjust the cutting angle of the tool relative to the workpiece. Background Art

[0002] Since the tool magazine of the turning and milling center has dozens of tools, using dozens of existing fluid control valves is too large and very inconvenient. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a cutting fluid distribution valve for a tool magazine of a turning and milling center, the output pipeline of which should be convenient for connecting to the cutting fluid nozzles of all the tools in the tool magazine. The action of the valve can utilize the tool selection rotary motion of the tool magazine to simplify the structure, but it should be able to track the B-axis feed rotary motion of the tool magazine to keep the selected tool cooled.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A cutting fluid distribution valve for a tool magazine in a turning and milling center comprises a valve body, a valve core, a valve sleeve and a gland. The distribution valve is used to control the cutting fluid injection of m rows of tools on the tool magazine, each row of which has n tools. The inner hole of the valve core is connected to a cutting fluid pump through a right-angle water inlet pipe. The inner hole of the valve body is evenly provided with M rows of N radial water outlet holes in each row. All the water outlet holes are connected to N*M output connectors at the upper end of the valve body and are connected to the cutting fluid nozzles of all tools in the tool magazine body through N*M hoses. A radial water injection hole is provided at the upper end of the valve core. By rotating or moving the valve core up and down, one of the N*M water outlet holes can be selected to discharge water. The cutting fluid distribution valve also comprises a valve core tool selection rotary mechanism, a valve core tool selection translation mechanism and a valve core tracking tool magazine B-axis rotary mechanism.

[0006] Preferably, the valve core tool selection rotating mechanism includes a connecting sleeve, the valve body is fixed to the tool magazine body through the connecting sleeve, the tool magazine body is connected to the tool magazine rotating mechanism through a connecting disk, the tool magazine rotating mechanism is connected to a rotating mechanism base, a rotating mechanism base cover is installed on the rotating mechanism base, and the valve body and the valve core rotate synchronously.

[0007] Preferably, the valve core tracking tool magazine B-axis rotation mechanism includes a guide sleeve and a flat key, the guide sleeve is connected to the valve core and is located on the inner circle of the pressure cover, the flat key is embedded in the lower outer circle of the valve core and engages with the keyway of the inner hole of the guide sleeve, and the guide sleeve is connected to the driving mechanism installed on the base cover of the rotating mechanism.

[0008] Preferably, the valve core knife selection translation mechanism includes a motor b, which is connected to the base cover of the rotary mechanism through a translation mechanism guide rail. The output end of the motor b is connected to a screw, and a nut is threaded on the screw. The nut is embedded in a fork slider, and the fork slider slides in the rail groove of the translation mechanism guide rail. The fork of the fork slider is inserted into the annular groove at the bottom of the valve core.

[0009] Preferably, the driving mechanism comprises a motor a mounted on the base cover of the rotary mechanism, the output end of the motor a is connected to a small gear, the small gear is meshed with a large gear, and the large gear is fixed to the guide sleeve.

[0010] Preferably, the outer circle of the guide sleeve and the inner hole of the pressure cover are both formed with semicircular grooves, in which a circle of balls is placed.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention designs a distribution valve with a small volume that can be installed near the tool magazine, and its output pipeline is convenient for connecting to the cutting fluid nozzles of all the tools in the tool magazine. The action of the valve can utilize the tool selection rotation motion of the tool magazine to simplify the structure, while being able to track the B-axis feed rotation motion of the tool magazine to keep the selected tool cooled. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more specifically and intuitively illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 A cross-sectional view of the general assembly of a cutting fluid distribution valve for a tool magazine of a milling center is provided for the present invention;

[0014] Figure 2 A longitudinal section view of a part of the assembly of a cutting fluid distribution valve for a tool magazine of a milling center is provided by the present invention;

[0015] Figure 3 The present invention proposes a partial assembly AA section view of a cutting fluid distribution valve for a tool magazine of a milling center;

[0016] Figure 4 The present invention provides an axonometric diagram of a translation mechanism of a cutting fluid distribution valve of a tool magazine of a turning and milling center.

[0017] In the figure: tool magazine body 1, connecting plate 2, tool magazine rotating mechanism 3, rotating mechanism base 4, connecting sleeve 5, rotating mechanism base cover 6, valve body 10, valve sleeve 11, valve core 12, pressure cover 13, pipeline 14, output pipe joint 15, right-angle water inlet pipe 16, large gear 17, small gear 18, motor a19, flat key 20, guide sleeve 21, ball 24, translation mechanism guide rail 26, fork slider 27, screw 28, motor b29, nut 30, water inlet pipe fixing seat 31. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-4 A cutting fluid distribution valve for tool magazine of a turning and milling center comprises a valve body 10, a valve core 12, a valve sleeve 11 and a gland 13. The distribution valve is used to control the cutting fluid injection of m rows of tools with n tools in each row on the tool magazine. The inner hole of the valve core 12 is connected to a cutting fluid pump through a right-angle water inlet pipe 16. The inner hole of the valve body 10 is evenly provided with M rows of N radial water outlet holes in each row. All the water outlet holes are communicated with N*M output connectors 15 at the upper end of the valve body 10, and are connected to the cutting fluid nozzles of all tools in the tool magazine body 1 through N*M hoses. There is a radial water injection hole at the upper end of the valve core 12. By rotating or moving the valve core 12 up and down, one of the N*M water outlet holes can be selected to discharge water. The cutting fluid distribution valve also comprises a valve core tool selection rotary mechanism, a valve core tool selection translation mechanism and a valve core tracking tool magazine B-axis rotary mechanism.

[0020] In this embodiment, the valve core tool selection rotating mechanism includes a connecting sleeve 5, the valve body 10 is fixed to the tool magazine body 1 through the connecting sleeve 5, the tool magazine body 1 is connected to the tool magazine rotating mechanism 3 through the connecting plate 2, the tool magazine rotating mechanism 3 is connected to the rotating mechanism base 4, and the rotating mechanism base cover 6 is installed on the rotating mechanism base 4, and the valve body 10 and the valve core 12 rotate synchronously.

[0021] When the tool magazine rotating mechanism 3 drives the tool magazine body 1 to rotate and select a tool, the valve body 10 rotates synchronously relative to the valve core 12, so that the tool jetting is automatically switched to the selected tool row.

[0022] In this embodiment, the valve core tracking tool magazine B-axis rotation mechanism includes a guide sleeve 21 and a flat key 20. The guide sleeve 21 is sleeved on the valve core 12 and is located on the inner circle of the pressure cover 13. The flat key 20 is embedded in the lower outer circle of the valve core 12 and engages with the keyway of the inner hole of the guide sleeve 21, so that the valve core 12 can translate but not rotate relative to the guide sleeve 21. The guide sleeve 21 is connected to the driving mechanism installed on the base cover 6 of the rotary mechanism.

[0023] When the tool magazine performs B-axis rotation, the servo motor 19 will synchronously drive the large gear 17 and the valve core 12 to rotate the same angle, so that the valve core tracks the B-axis rotation of the tool magazine, thereby maintaining continuous injection of the cutting fluid of the selected tool.

[0024] In this embodiment, the valve core knife selection translation mechanism includes a motor B29, which is connected to the rotary mechanism base cover 6 through the translation mechanism guide rail 26. The output end of the motor B29 is connected to a lead screw 28, and a nut 30 is threadedly connected to the lead screw 28. The nut 30 is embedded in the fork slider 27. The fork slider 27 slides in the track groove of the translation mechanism guide rail 26, and the fork of the fork slider 27 is inserted into the annular groove at the bottom of the valve core 12.

[0025] When the motor 29 is running, the push-pull valve core 12 is translated up and down, so that the tool jet is automatically switched to the selected tool when the tool magazine is translated to select the tool.

[0026] In this embodiment, the driving mechanism includes a motor a19 installed on the base cover 6 of the rotary mechanism. The output end of the motor a19 is connected to a small gear 18 . The small gear 18 is meshed with a large gear 17 . The large gear 17 is fixed to the guide sleeve 21 .

[0027] In this embodiment, the outer circle of the guide sleeve 21 and the inner hole of the gland 13 are both formed with semicircular grooves, in which a circle of balls 24 are placed, so that the guide sleeve 21 can rotate freely relative to the gland 13 but cannot move axially.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cutting fluid distribution valve for a tool magazine of a turning and milling center, used to control the cutting fluid spraying of m rows of tools, each row of n tools, on a tool magazine body (1), characterized in that: It comprises a valve body (10), a valve core (12), a valve sleeve (11), and a gland (13). The inner hole of the valve core (12) is connected to a cutting fluid pump via a right-angle water inlet pipe (16). The inner hole of the valve body (10) is evenly provided with M rows of N radial water outlet holes in each row. All the water outlet holes are connected to N*M output connectors (15) at the upper end of the valve body (10) and are connected to the cutting fluid nozzles of all tools of the tool magazine body (1) via N*M hoses. The upper end of the valve core (12) is provided with a radial water injection hole. By rotating or moving the valve core up and down, one of the N*M water outlet holes can be selected to discharge water. The cutting fluid distribution valve also comprises a valve core tool selection rotary mechanism, a valve core tool selection translation mechanism, and a valve core tracking tool magazine B axis rotary mechanism.

2. A cutting fluid distribution valve for tool magazine of a turning and milling center according to claim 1, characterized in that: The valve core tool selection rotary mechanism comprises a connecting sleeve (5), and the connecting sleeve (5) coaxially fixes the valve body (10) to the tool magazine body (1).

3. A cutting fluid distribution valve for tool magazine of a turning and milling center according to claim 1 or 2, characterized in that: The valve core tracking tool magazine B-axis rotation mechanism comprises a flat key (20), a guide sleeve (21), a ball (24), a large gear (17), a small gear (18), and a servo motor (19). The flat key (20) is embedded in the outer circle of the lower part of the valve core (12) and meshes with the keyway of the inner hole of the guide sleeve (21), so that the valve core (12) can translate relative to the guide sleeve (21) but cannot rotate. The outer circle of the guide sleeve (21) and the inner hole of the pressure cover (13) are both formed with semicircular grooves, in which a circle of balls (24) are placed, so that the guide sleeve can rotate freely relative to the pressure cover (13) but cannot move axially. The large gear (17) is fixed to the guide sleeve (21) and meshes with the small gear (18) installed on the output shaft of the servo motor (19). When the tool magazine performs B-axis rotation, the servo motor (19) will synchronously drive the large gear (17) and make the valve core (12) rotate by the same angle.

4. The cutting fluid distribution valve for tool magazine of a turning and milling center according to claim 1, characterized in that: The valve core knife selection translation mechanism comprises an annular groove formed at the lower part of the valve core (12), and an electric translation mechanism, wherein the electric translation mechanism is composed of a translation mechanism guide rail (26), a shift fork slider (27), a screw rod (28), and a motor (29), wherein the translation mechanism guide rail (26) is fixed on a rotary mechanism base cover (6), the shift fork slider (27) can slide in the track groove of the translation mechanism guide rail (26), the screw rod (28) of the motor (29) is screwed into the nut of the shift fork slider (27), and the shift fork of the shift fork slider (27) is inserted into the annular groove at the lower part of the valve core (12).

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