Lathe following type cooling device

Abstract

The utility model provides a lathe following type cooling device, and belongs to the technical field of machining equipment. The cooling device solves the problem that an existing cooling device cannot completely cool tools on a rotary tool rest and the like. According to the following type cooling device for the lathe, the lathe comprises a rotatable tool base, four tools are arranged on the peripheral face of the tool base, the cooling device comprises a liquid conveying pipe and a spraying base fixed to the tool base, a rotary cavity coaxial with the tool base is formed in the spraying base, and outlet parts in one-to-one correspondence with the tools are arranged on the spraying base. At least one spraying pipe is installed on each outlet part, a valve element is inserted in the rotary cavity, the upper end of the valve element is connected with the liquid conveying pipe, and when the tool base rotates to enable any tool to be used for turning, the valve element can enable the liquid conveying pipe to be communicated with the spraying pipe on the outlet part corresponding to the tool. And the four cutters can be cooled when the cutter base rotates and is switched for cutting, so that the use performance and the service life of the four cutters can be ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing equipment and relates to a lathe follow-up cooling device. Background Art

[0002] When turning a workpiece, cutting heat is generated, which will affect the processing quality of the workpiece and the performance of the tool. Therefore, the workpiece and the tool need to be cooled during the processing, and a cooling device is generally installed on the lathe for cooling.

[0003] The spray pipe of the cooling device is generally a flexible pipe, fixed above the lathe spindle fixture. Before processing, the spray pipe is manually adjusted to make the nozzle face the workpiece. However, the processing position of the workpiece will change during the processing. For example, when turning the outer circle of a long shaft, the nozzle is in a fixed state and cannot move adaptively with the processing position of the workpiece, resulting in poor cooling effect of the workpiece and the tool.

[0004] In order to change the position of the spray head with the workpiece processing position, some people fix the spray head on the frame. For example, the Chinese patent document [Announcement No.: CN 214237375U] discloses a cooling system for a CNC finishing lathe. The cooling device uses a flexible tube and a water pump to spray coolant through the spray head on the flexible tube to cool the tool. The flexible tube is fixed to the tool holder through a fixing part, and can move with the tool in real time, allowing the coolant to be sprayed directly on the tool tip, making the cooling more sufficient.

[0005] When the tool needs to be changed during the processing, a rotating tool holder will be installed on the lathe. The rotating tool holder includes a rectangular tool holder and a motor. A transmission mechanism is set between the motor and the tool holder, and the motor drives the tool holder to rotate through the transmission mechanism. The four tools are installed on the four sides of the tool holder respectively. The tool holder rotates to switch the four tools for processing. For the rotating tool holder, if the nozzle is fixed on the tool holder, when the tool holder rotates to switch the tool, the nozzle will rotate with the tool holder and cannot be aimed at the tool switched to the processing position, that is, the nozzle can cool one of the tools but not the other tools. Utility Model Content

[0006] The utility model aims to solve the above problems in the prior art and proposes a lathe follow-up cooling device to solve the technical problem that the prior cooling device cannot cool all the tools on the rotating tool holder.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A lathe follow-up cooling device, the lathe includes a rotating tool holder, the rotating tool holder includes a rotatable tool seat, four tools are arranged on the outer circumference of the tool seat around the rotating axis of the tool seat, the cooling device includes an infusion tube, and is characterized in that the cooling device also includes a spray seat fixed on the upper surface of the tool seat, the spray seat is provided with a rotating chamber coaxially arranged with the rotating axis of the tool seat, the spray seat has outlet parts corresponding to the tools one by one, each outlet part is installed with at least one spray pipe, a valve core is inserted in the rotating chamber, the upper end of the valve core is connected to the infusion tube, when the tool seat rotates to use any one of the tools for turning processing, the valve core can connect the infusion tube with the spray pipe on the outlet corresponding to the tool.

[0009] During the operation of the lathe, when the tool seat rotates, the spray seat rotates synchronously. Since the rotary cavity on the spray seat is coaxially arranged with the rotating axis of the tool seat, the valve core inserted in the rotary cavity can remain stationary. When the tool seat rotates to one of the tools for turning processing, the valve core connects the infusion tube with the spray pipe on the outlet corresponding to the tool. At this time, the coolant is sprayed onto the tool used for cutting after passing through the infusion tube, valve core, spray seat and corresponding spray pipe, cooling the tool and workpiece being processed. In this way, the four tools can be cooled when the tool seat rotates and switches for cutting processing, which is conducive to ensuring the performance and service life of the four tools.

[0010] In the above lathe follow-up cooling device, each outlet portion has at least one radial hole connected to the rotary chamber, each spray pipe is connected to each radial hole correspondingly, a radial connection hole is provided on the outer side of the valve core, all radial holes and radial connection holes are located at the same height, an axial hole connected to the radial hole is provided on the upper surface of the valve core, the infusion tube is connected to the axial hole, and the outer side surface of the valve core is sealed against the wall surface of the rotary chamber. After such arrangement, when the spray seat rotates, the radial connection hole can be opposite to and connected to any radial hole. In this way, when the tool seat rotates to switch the tool, the coolant passes from the infusion tube through the axial hole, the radial connection hole and the corresponding radial hole after switching, and finally sprays out from the corresponding spray pipe, so that all tools can be cooled during processing.

[0011] In the lathe follow-up cooling device described above, a pressure plate is fixed on the spray seat, the upper end of the valve core extends from the pressure plate, a spring is provided between the pressure plate and the valve core, and the outer side surface of the valve core and the cavity wall surface of the rotary cavity are both in an inverted cone shape. The spring keeps the valve core and the cavity wall surface of the rotary cavity close to each other and sealed, preventing a large amount of coolant from leaking out from between the valve core and the spray seat to affect the cooling of the tool and the workpiece.

[0012] In the lathe follow-up cooling device, two spray pipes are connected to each outlet, and the inner ends of the two radial holes on the same outlet are connected. Such a radial connection hole can simultaneously connect the two radial holes, so that the spray pipes on the same outlet can spray coolant at the same time, thereby improving the cooling effect.

[0013] In the lathe follow-up cooling device, a ball joint is connected between each spray pipe and the outlet portion, which can rotate the spray pipe to adjust the outlet angle of the spray pipe so that the outlet of the spray pipe is aligned with the processing position of the tool and the workpiece.

[0014] In the lathe follow-up cooling device, the rotary tool rest further comprises a motor capable of driving the tool seat to rotate, a positioning frame is fixed on the motor, a flat square head is provided at the upper end of the valve core, a flat square groove is provided on the positioning frame, and the flat square head is inserted into the flat square groove. In this way, the valve core can be positioned circumferentially by the positioning frame, so as to prevent the valve core from rotating during the rotation of the tool seat, thereby preventing the rotation of the valve core from causing the infusion tube to twist.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] By setting a spray seat, a spray pipe and a valve core, the four tools on the rotating tool holder can be cooled when switching to processing, ensuring the performance and service life of the tools, which is beneficial to ensuring the processing quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the cooling device.

[0018] Figure 2 It is a cross-sectional view of the valve core of the cooling device.

[0019] Figure 3 It is a partial longitudinal section view of the valve core of the cooling device.

[0020] In the figure, 1, tool seat; 2, tool; 3, motor; 4, infusion tube; 5, spray seat; 5a, rotary chamber; 5b, outlet; 5c, radial hole; 6, spray pipe; 7, valve core; 7a, radial connecting hole; 7b, axial hole; 7c, flat square head; 8, pressure plate; 9, spring; 10, ball joint; 11, positioning frame; 11a, flat square groove. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figure 1As shown, a lathe follow-up cooling device includes a rotating tool holder, which includes a rotatable tool holder 1 and a motor 3 capable of driving the tool holder 1 to rotate. The tool holder 1 is mounted on a base, which is mounted on a carriage assembly. The rotating axis of the tool holder 1 is vertically arranged, and the motor 3 can drive the tool holder 1 to rotate through a bevel gear transmission assembly. Four tools 2 are arranged on the outer circumference of the tool holder 1 around the rotating axis of the tool holder 1, of which only one is drawn in the figure, and the other three are not drawn.

[0023] Combination Figure 2 and Figure 3 As shown, the cooling device includes a liquid infusion tube 4 and a spray seat 5 fixed on the upper surface of the tool holder 1. A rotary chamber 5a is provided on the spray seat 5, which is coaxially arranged with the rotation axis of the tool holder 1, and the cavity wall surface of the rotary chamber 5a is in the shape of an inverted cone. The spray seat 5 has outlet portions 5b corresponding to the tools 2 one by one, and each outlet portion 5b is installed with at least one spray pipe 6. In this embodiment, two spray pipes 6 are installed on each outlet portion 5b. A valve core 7 is inserted in the rotary chamber 5a, and the outer side surface of the valve core 7 is in the shape of an inverted cone. The outer side surface of the valve core 7 is in close contact with the cavity wall surface of the rotary chamber 5a. The upper end of the valve core 7 is connected to the liquid infusion tube 4. When the tool holder 1 rotates to make any tool 2 used for turning processing, the valve core 7 can connect the liquid infusion tube 4 with the spray pipe 6 on the outlet portion 5b corresponding to the tool 2. Each outlet 5b has at least one radial hole 5c connected to the rotary chamber 5a. In this embodiment, each outlet 5b is provided with two radial holes 5c, and the inner ends of the two radial holes 5c on the same outlet 5b are connected. Each spray pipe 6 is connected to each radial hole 5c, and a radial connecting hole 7a is provided on the outer surface of the valve core 7. All radial holes 5c and radial connecting holes 7a are located at the same height. An axial hole 7b connected to the radial hole 5c is provided on the upper surface of the valve core 7, and the infusion tube 4 is connected to the axial hole 7b. A pressing plate 8 is fixed on the spray seat 5, and the upper end of the valve core 7 extends from the pressing plate 8. A spring 9 is provided between the pressing plate 8 and the valve core 7. A ball joint 10 is connected between each spray pipe 6 and the outlet 5b. A positioning frame 11 is fixed on the motor 3, and a flat square head 7c is provided on the upper end of the valve core 7. A flat square groove 11a is provided on the positioning frame 11, and the flat square head 7c is inserted into the flat square groove 11a.

[0024] During the operation of the lathe, when the tool holder 1 rotates, the spray holder 5 rotates synchronously. Since the rotary cavity 5a on the spray holder 5 is coaxially arranged with the rotation axis of the tool holder 1, the valve core 7 inserted in the rotary cavity 5a can remain stationary. When the tool holder 1 rotates to one of the tools 2 for turning processing, the valve core 7 connects the infusion tube 4 with the spray pipe 6 on the outlet portion 5b corresponding to the tool 2. At this time, the coolant is sprayed onto the tool 2 used for cutting after passing through the infusion tube 4, the axial hole 7b, the radial connecting hole 7a, the corresponding radial hole 5c and the corresponding spray pipe 6, so as to cool the tool 2 and the workpiece being processed. In this way, the four tools 2 can be cooled when the tool holder 1 rotates and switches for cutting processing, which is conducive to ensuring the performance and service life of the four tools 2 and the processing quality of the workpiece.

[0025] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A lathe follow-up cooling device, the lathe comprising a rotating tool holder, the rotating tool holder comprising a rotatable tool holder (1), four tools (2) being arranged on the outer peripheral surface of the tool holder (1) around the rotating axis of the tool holder (1), the cooling device comprising a liquid infusion tube (4), characterized in that: The cooling device further comprises a spray seat (5) fixed on the upper surface of the tool seat (1), the spray seat (5) being provided with a rotary chamber (5a) coaxially arranged with the rotary axis of the tool seat (1), the spray seat (5) being provided with outlet portions (5b) corresponding one to one with the tools (2), at least one spray pipe (6) being installed on each outlet portion (5b), a valve core (7) being inserted in the rotary chamber (5a), the upper end of the valve core (7) being connected to a liquid infusion pipe (4), and when the tool seat (1) is rotated to enable any tool (2) to be used for turning processing, the valve core (7) can enable the liquid infusion pipe (4) to communicate with the spray pipe (6) on the outlet portion (5b) corresponding to the tool (2).

2. The lathe follow-up cooling device according to claim 1, characterized in that: Each outlet portion (5b) has at least one radial hole (5c) in communication with the rotary chamber (5a); each spray pipe (6) is connected to each radial hole (5c) in correspondence; a radial connection hole (7a) is provided on the outer side surface of the valve core (7); all radial holes (5c) and radial connection holes (7a) are located at the same height; an axial hole (7b) in communication with the radial hole (5c) is provided on the upper surface of the valve core (7); the infusion tube (4) is connected to the axial hole (7b); and the outer side surface of the valve core (7) is in close contact with the wall surface of the rotary chamber (5a) and is sealed.

3. The lathe following cooling device according to claim 2, characterized in that: A pressure plate (8) is fixed on the spray seat (5), the upper end of the valve core (7) extends from the pressure plate (8), a spring (9) is provided between the pressure plate (8) and the valve core (7), and the outer side surface of the valve core (7) and the cavity wall surface of the rotary cavity (5a) are both in the shape of an inverted cone.

4. The lathe following cooling device according to claim 2, characterized in that: Two spray pipes (6) are connected to each outlet portion (5b), and the inner ends of two radial holes (5c) on the same outlet portion (5b) are connected.

5. The lathe follow-up cooling device according to any one of claims 1 to 4, characterized in that: A ball joint (10) is connected between each spray pipe (6) and the outlet portion (5b).

6. The lathe follow-up cooling device according to any one of claims 1 to 4, characterized in that: The rotary tool holder also includes a motor (3) capable of driving the tool holder (1) to rotate, a positioning frame (11) is fixed on the motor (3), a flat square head (7c) is provided at the upper end of the valve core (7), a flat square groove (11a) is provided on the positioning frame (11), and the flat square head (7c) is inserted into the flat square groove (11a).

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