High-rotating-speed and high-precision automatic tool changing electric spindle

Abstract

The utility model discloses a high rotating speed high precision automatic tool changing motorized spindle relates to motorized spindle technical field, the high rotating speed high precision automatic tool changing motorized spindle includes casing, inside the casing is provided with main shaft, the surface of main shaft is provided with air inlet pipe no. A second air inlet pipe is fixedly connected to the surface of the fixing rod, a sliding rod is slidably connected to the interior of the fixing rod, a connecting frame is fixedly connected to the lower end of the sliding rod, a fixing plate is fixedly connected to the surface of the connecting frame, and a clamping groove is formed in the surface of the fixing plate. And the limiting rod drives the sliding rod to rotate by 90 degrees, so that the next tool is moved to the position below the main shaft, tool replacement is completed, the situation that a worker takes the tool manually is avoided, and the worker can use the tool conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spindles, in particular to a high-speed and high-precision automatic tool-changing electric spindle. Background Art

[0002] The electric spindle is a new technology that has emerged in the field of CNC machine tools, integrating the machine spindle and spindle motor. Together with linear motor technology and high-speed tool technology, it has ushered in a new era of high-speed machining. The electric spindle consists of the spindle itself and its accessories, including the spindle, high-frequency inverter, oil mist lubricator, cooling device, built-in encoder, and tool changer.

[0003] However, in most existing methods, when replacing the tool of the electric spindle, it is necessary to start the equipment so that the gas pushes the inside of the electric spindle, so that the electric spindle no longer fixes the tool. The staff has to take the tool that has been detached from the electric spindle, and it is too troublesome for the staff to use the tool when replacing it. Therefore, a high-speed and high-precision automatic tool changing electric spindle is proposed to solve the above problem. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a high-speed and high-precision automatic tool-changing electric spindle that can solve the problems of the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-speed and high-precision automatic tool-changing electric spindle, comprising a shell, a spindle is arranged inside the shell, an air intake pipe 1 is arranged on the surface of the spindle, a fixed rod is fixedly connected to the surface of the shell, an air intake pipe 2 is fixedly connected to the surface of the fixed rod, a sliding rod is slidably connected to the inside of the fixed rod, the lower end of the sliding rod is fixedly connected to a connecting frame, a fixed plate is fixedly connected to the surface of the connecting frame, a card slot is provided on the surface of the fixed plate, and the inside of the card slot is rotatably connected to the placed tool.

[0006] Preferably, a spring is movably sleeved on the surface of the sliding rod located inside the fixed rod, two ends of the spring are in contact with the sliding rod and the fixed rod respectively, and the cross section of the sliding rod is T-shaped.

[0007] Preferably, a connecting rod is fixedly connected to the surface of the shell, an end of the connecting rod away from the shell is fixedly connected to a fixed disk, and the interior of the fixed disk is slidably connected to the surface of the sliding rod.

[0008] Preferably, the surface of the sliding rod is slidably connected to a sliding shell, the surface of the sliding rod located inside the sliding shell is fixedly connected to a sliding plate, and the surface of the sliding rod located inside the sliding shell is also movably sleeved with a spring, and both ends of the spring are in contact with the sliding plate and the sliding shell respectively.

[0009] Preferably, the sliding shell is provided with limiting grooves inside, the limiting grooves are composed of a vertical groove and an oblique groove, and there are four groups of limiting grooves.

[0010] Preferably, the surface of the sliding rod is fixedly connected to the limiting rod, and the surface of the limiting rod is slidably connected to the inside of the limiting groove.

[0011] Preferably, a limiting groove is provided on the surface of the fixed disk, and a limiting block is fixedly connected to the surface of the sliding shell.

[0012] Preferably, a fixing frame is fixedly connected to the surface of the second air inlet pipe, and the fixing frame is arranged in a bent shape, and the interior of the fixing frame is fixedly connected to the fixing rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) When the sliding rod of the high-speed and high-precision automatic tool-changing electric spindle moves downward, the limit rod drives the sliding rod to rotate 90 degrees, so that the next tool moves to the bottom of the spindle, thereby completing the replacement of the tool and avoiding the need for the staff to manually pick it up, making it easier for the staff to use.

[0015] (2) The high-speed and high-precision automatic tool-changing electric spindle is provided with a fixed frame so that a portion of the air inputted into the second air inlet pipe enters the interior thereof and blows directly onto the surface of the tool through the fixed frame, thereby avoiding dust from adhering to the surface of the tool inserted into the spindle, thereby avoiding dust from obstructing the installation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the fixing rod of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the sliding shell of the utility model;

[0020] Figure 4 This is a schematic diagram of the shape of the limiting groove of the utility model.

[0021] Figure numerals: 1, housing; 2, main shaft; 3, intake pipe 1; 4, fixed rod; 5, intake pipe 2; 6, fixed frame; 7, sliding rod; 8, connecting frame; 9, fixing plate; 10, slot; 11, sliding shell; 12, connecting rod; 13, fixing plate; 14, spring; 15, limiting groove; 16, sliding plate; 17, limiting rod; 18, limiting groove; 19, limiting block. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a technical solution: a high-speed and high-precision automatic tool-changing electric spindle, comprising a shell 1, a spindle 2 is arranged inside the shell 1, an air intake pipe 3 is arranged on the surface of the spindle 2, a fixed rod 4 is fixedly connected to the surface of the fixed rod 4, an air intake pipe 5 is fixedly connected to the surface of the fixed rod 4, a sliding rod 7 is slidably connected to the inside of the fixed rod 4, and the cross-section of the sliding rod 7 is T-shaped, and the surface of the sliding rod 7 is made of rubber, the lower end of the sliding rod 7 is fixedly connected to a connecting frame 8, the surface of the connecting frame 8 is fixedly connected to a fixing plate 9, a card slot 10 is provided on the surface of the fixing plate 9, the replaced tool is placed through the card slot 10, the tool is placed inside the card slot 10, and the inside of the card slot 10 is rotatably connected to the placed tool, the surface of the sliding rod 7 located inside the fixed rod 4 is movably sleeved with a spring 14, and the two ends of the spring 14 are in contact with the sliding rod 7 and the fixed rod 4 respectively.

[0024] Both the air inlet pipe 1 3 and the air inlet pipe 2 5 are connected to external air pressure equipment through pipelines, and the gas is transported through the air pressure equipment.

[0025] When the cutter head needs to be replaced, the external air pressure equipment delivers gas to the inside of the air inlet pipe 3 and the fixed frame 6 through the pipeline. The gas entering the inside of the main shaft 2 pushes its internal structure to open, and the tool is no longer locked (the tool locking is an existing structure and will not be described in detail here). The gas entering the inside of the air inlet pipe 2 5 squeezes the sliding rod 7, causing the sliding rod 7 to slide downward, and then the sliding rod 7 pushes the connecting frame 8, the fixed plate 9, and the slot 10 to move, and then the slot 10 drives the tool located below the main shaft 2 to move, thereby separating the tool from the main shaft 2.

[0026] The surface of the shell 1 is fixedly connected to a connecting rod 12, and the end of the connecting rod 12 away from the shell 1 is fixedly connected to a fixed disk 13. The interior of the fixed disk 13 is slidably connected to the surface of the sliding rod 7, and the surface of the sliding rod 7 is slidably connected to the sliding shell 11. The surface of the sliding rod 7 located inside the sliding shell 11 is fixedly connected to a sliding plate 16, and the surface of the sliding rod 7 located inside the sliding shell 11 is also movably sleeved with a spring 14, and the two ends of the spring 14 are respectively in contact with the sliding plate 16 and the sliding shell 11.

[0027] When the sliding rod 7 continues to move downward, the sliding shell 11 slides and contacts the connecting rod 12, so that under the setting of the connecting rod 12, the sliding shell 11 is resisted, so that the sliding shell 11 slides on the surface of the sliding rod 7, and the sliding rod 7 drives the sliding plate 16 to slide and squeeze the spring 14.

[0028] A limiting groove 15 is provided inside the sliding shell 11. The limiting groove 15 consists of a vertical groove and an oblique groove. There are four groups of limiting grooves 15, and the vertical grooves are connected to the head and tail of the horizontal grooves. The oblique groove connected to the lower end of the vertical groove is slightly shallower than the vertical groove, and the oblique groove connected to the upper end of the vertical groove is slightly deeper than the vertical groove. The surface of the sliding rod 7 is fixedly connected to the limiting rod 17, and the surface of the limiting rod 17 is slidably connected to the inside of the limiting groove 15.

[0029] When the sliding rod 7 moves downward, the sliding rod 7 drives the limiting rod 17 to move, and because the sliding shell 11 conflicts with the fixed plate 13, the limiting rod 17 slides inside the limiting groove 15, so that the limiting rod 17 drives the sliding rod 7 to rotate ninety degrees, and the sliding rod 7 drives the connecting frame 8, the fixed plate 9, and the card slot 10 to rotate, so that the next tool moves to the bottom of the spindle 2, thereby completing the replacement of the tool, avoiding the situation where the staff manually picks it up, and facilitating the use of the staff.

[0030] A limiting groove 18 is provided on the surface of the fixed disk 13, and a limiting block 19 is fixedly connected to the surface of the sliding shell 11, so that the sliding shell 11 moves downward and is inserted into the interior of the limiting block 19. By setting the limiting groove 18 and the limiting block 19, the rotation of the sliding shell 11 is blocked, so that the device can be used normally.

[0031] The surface of the air intake pipe 2 5 is fixedly connected to a fixing frame 6, and the fixing frame 6 is arranged in a bent shape. The interior of the fixing frame 6 is fixedly connected to the fixing rod 4. Through the arrangement of the fixing frame 6, a part of the air input into the interior of the air intake pipe 2 5 will enter its interior and directly blow the surface of the tool through the fixing frame 6, thereby avoiding dust adhering to the surface of the tool inserted into the spindle 2, thereby avoiding dust blocking the installation of the device.

[0032] Working principle: When the cutter head needs to be replaced, the external air pressure equipment delivers gas to the inside of the air inlet pipe 3 and the fixed frame 6 through the pipeline. The gas entering the inside of the main shaft 2 pushes its internal structure to open, and the tool is no longer locked. The gas entering the inside of the air inlet pipe 2 5 squeezes the sliding rod 7, causing the sliding rod 7 to slide downward, and then the sliding rod 7 pushes the connecting frame 8, the fixed plate 9, and the card slot 10 to move, and then the card slot 10 drives the tool located below the main shaft 2 to move, thereby separating the tool from the main shaft 2. When the sliding rod 7 continues to move downward, the sliding shell 11 slides and engages with the connecting rod 12 Contact, thereby under the setting of the connecting rod 12, the sliding shell 11 is resisted, so that the sliding shell 11 slides on the surface of the sliding rod 7, so that the sliding rod 7 drives the sliding plate 16 to slide to squeeze the spring 14, and the sliding rod 7 drives the limiting rod 17 to move, and because the sliding shell 11 is in conflict with the fixed plate 13, the limiting rod 17 slides inside the limiting groove 15, so that the limiting rod 17 drives the sliding rod 7 to rotate ninety degrees, so that the sliding rod 7 drives the connecting frame 8, the fixed plate 9, and the card slot 10 to rotate, so that the next tool moves to the bottom of the spindle 2, thereby completing the replacement of the tool.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A high-speed, high-precision, automatic tool-changing electric spindle, comprising a housing (1), characterized in that: A main shaft (2) is provided inside the shell (1), an air intake pipe (1) is provided on the surface of the main shaft (2), a fixed rod (4) is fixedly connected to the surface of the shell (1), an air intake pipe (2) is fixedly connected to the surface of the fixed rod (4), a sliding rod (7) is slidably connected to the inside of the fixed rod (4), a connecting frame (8) is fixedly connected to the lower end of the sliding rod (7), a fixing plate (9) is fixedly connected to the surface of the connecting frame (8), and a card slot (10) is provided on the surface of the fixing plate (9).

2. The high-speed, high-precision, automatic tool-changing electric spindle according to claim 1, characterized in that: The sliding rod (7) is located inside the fixed rod (4) and is movably sleeved with a spring (14). The two ends of the spring (14) are in contact with the sliding rod (7) and the fixed rod (4) respectively, and the cross section of the sliding rod (7) is T-shaped.

3. The high-speed, high-precision, automatic tool-changing electric spindle according to claim 2, characterized in that: A connecting rod (12) is fixedly connected to the surface of the housing (1), an end of the connecting rod (12) away from the housing (1) is fixedly connected to a fixed disk (13), and the interior of the fixed disk (13) is slidably connected to the surface of the sliding rod (7).

4. The high-speed, high-precision, automatic tool-changing electric spindle according to claim 3, characterized in that: The surface of the sliding rod (7) is slidably connected to the sliding shell (11), the surface of the sliding rod (7) located inside the sliding shell (11) is fixedly connected to the sliding plate (16), and the surface of the sliding rod (7) located inside the sliding shell (11) is also movably sleeved with a spring (14), and the two ends of the spring (14) are in contact with the sliding plate (16) and the sliding shell (11) respectively.

5. The high-speed, high-precision, automatic tool-changing electric spindle according to claim 4, characterized in that: The interior of the sliding shell (11) is provided with a limiting groove (15), the limiting groove (15) consisting of a vertical groove and an oblique groove, and four groups of limiting grooves (15) are provided.

6. The high-speed, high-precision, automatic tool-changing electric spindle according to claim 5, characterized in that: The surface of the sliding rod (7) is fixedly connected to the limiting rod (17), and the surface of the limiting rod (17) is slidably connected to the interior of the limiting groove (15).

7. The high-speed, high-precision, automatic tool-changing electric spindle according to claim 6, characterized in that: A limiting groove (18) is provided on the surface of the fixed disk (13), and a limiting block (19) is fixedly connected to the surface of the sliding shell (11).

8. The high-speed, high-precision, automatic tool-changing electric spindle according to claim 7, characterized in that: A fixing frame (6) is fixedly connected to the surface of the second air inlet pipe (5), and the fixing frame (6) is arranged in a bent shape, and the interior of the fixing frame (6) is fixedly connected to the fixing rod (4).

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