Extension device of machine tool spindle unclamping cylinder

Abstract

The utility model relates to the technical field of unclamping cylinders, and discloses a machine tool spindle unclamping cylinder extension device which comprises an unclamping cylinder body, a spindle body and a support, threaded connectors are mounted at the bottom end of the unclamping cylinder body and the top end of the spindle body, an extension frame is mounted on the inner wall of the support in a liftable manner, and the extension frame is connected with the spindle body. An air guide pipe is fixedly mounted on the inner wall of the extending frame, a distance adjusting piece and a transmission coil pipe which are parallel to the air guide pipe are rotationally connected to the inner wall of the extending frame, the distance adjusting piece is driven by the transmission coil pipe, two moving plates which are symmetrically arranged and have an adjustable distance are in transmission connection to the peripheral side face of the distance adjusting piece, and air distributing pipes are fixedly mounted on the inner walls of the two moving plates. On the basis that the requirement for the upward extending function of the installation position of the unclamping cylinder is met, synchronous and rapid threaded communication between the extending device and the main shaft as well as between the extending device and the unclamping cylinder can be achieved, and on the basis that the threaded communication function is achieved, rapid and synchronous disassembly and separation between the extending device and the main shaft as well as between the extending device and the unclamping cylinder can also be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool-beating cylinders, and more specifically, to a tool-beating cylinder extension device for a machine tool spindle. Background Art

[0002] When the machine tool is performing mechanical processing such as drilling, tapping, milling, as well as rough processing, fine processing and other processes, it is necessary to frequently replace tools and repair the spindle. The belt-type spindle commonly used in the prior art usually uses a tool-breaking cylinder to realize the tool changing function of the spindle. The tool-breaking cylinder and spindle that are frequently used need regular maintenance, lubrication or repair and replacement.

[0003] However, due to structural limitations and work characteristics, components such as the spindle, the cutting cylinder and the spindle motor are often installed in the inner cavity of a compact and tightly arranged casting. Usually, the cutting cylinder and the spindle are installed directly next to each other, which results in the need to remove the spindle motor and other components to make room for maintenance and repair of the cutting cylinder and the spindle. However, the spindle motor is inconvenient to remove due to its large size and high precision, which brings many inconveniences to the subsequent maintenance of the machine tool.

[0004] In order to solve the problems raised in the above-mentioned background technology, in the prior art, a patent document with publication number CN204771768U discloses a machine tool spindle cutting cylinder extension device. The above-mentioned device extends the installation position of the cutting cylinder upward by setting an extension rod to avoid the spindle motor. It not only has the spindle cutting function, but also has a simple structure and low cost, and is convenient for repair and maintenance. However, the above-mentioned extension device is not convenient for realizing rapid synchronous threaded connection with the machine tool spindle and the cutting cylinder and rapid disassembly after installation. Based on this, the utility model provides a machine tool spindle cutting cylinder extension device to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a machine tool spindle cutting cylinder extension device, which has the advantages of realizing the threaded connection function and also realizing the rapid synchronous disassembly and separation of the device, the spindle and the cutting cylinder.

[0006] The cam is connected with the transmission gear of the transmission gear of the transmission gear, and the cam is connected with the transmission gear of the transmission gear to rotate with the rotation of the transmission gear.

[0007] As a preferred technical solution of the utility model, the inner wall of the bracket is rotatably connected to a lifting screw rod, the peripheral side surface of the lifting screw rod is transmission-connected to the extension frame, the two side surfaces of the extension frame are slidably connected to the bracket, and a handle is fixedly installed on the end of the lifting screw rod.

[0008] As a preferred technical solution of the utility model, the distance adjusting member includes a distance adjusting screw rod rotatably connected to the extension frame, the circumferential side surface of the distance adjusting screw rod is symmetrically provided with a forward threaded portion and a reverse threaded portion, the circumferential side surfaces of the forward threaded portion and the reverse threaded portion are respectively transmission-connected to the two shifting plates, a driven gear is fixedly installed on the middle part of the distance adjusting screw rod, a transmission gear ring is fixedly installed on the circumferential side surface of the transmission coil, and the circumferential side surface of the transmission gear ring is transmission-connected to the driven gear.

[0009] As a preferred technical solution of the utility model, the interior of the air guide pipe is fixedly provided with an air guide groove which has openings at both ends and is slidably connected to the air distribution pipe, and the interior of the transmission coil is fixedly provided with a transmission guide groove which has openings at both ends and is slidably connected to the driven coil. The cross-sections of the air guide groove, transmission guide groove, driven coil and air distribution pipe are all regular polygons, and a sealing ring which cooperates with the air guide pipe is fixedly installed on the peripheral side of the air distribution pipe.

[0010] As a preferred technical solution of the utility model, the end of the air distribution pipe is fixedly connected to an air ring rotatably connected to the driven coil, and a group of air holes distributed in a circular array and connected to the air ring are opened inside the driven coil.

[0011] As a preferred technical solution of the utility model, positioning connection holes cooperating with the machine tool are regularly distributed inside the bracket.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model can realize the synchronous rapid threaded connection between the extension device, the main shaft and the knife cylinder on the basis of satisfying the function of upward extension of the installation position of the knife cylinder through the arrangement of the transmission coil, the distance adjusting member and other structures. Moreover, the device can realize the rapid synchronous disassembly and separation of the device, the main shaft and the knife cylinder on the basis of realizing the threaded connection function. By realizing the above-mentioned quick installation, quick disassembly and double-end threaded connection effects, the practicality of the device can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a machine tool spindle cutting cylinder extension device of the utility model;

[0015] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0016] Figure 3 For this utility model Figure 1 A schematic diagram of the cross-sectional structure of;

[0017] Figure 4 For this utility model Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0018] Figure 5 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point C in the middle.

[0019] In the figure: 1. Cylinder body; 2. Spindle body; 3. Threaded connector; 4. Bracket; 5. Extension frame; 6. Air guide tube; 7. Distance adjustment piece; 8. Transmission rotary tube; 9. Shift plate; 10. Air distribution tube; 11. Driven rotary tube; 12. Screw sleeve; 13. Lifting screw; 14. Transmission gear ring; 15. Driven gear; 16. Air ring; 17. Air vent. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 5 As shown, the utility model provides a machine tool spindle cutting cylinder extension device, comprising a cutting cylinder body 1 and a spindle body 2, wherein the bottom end of the cutting cylinder body 1 and the top end of the spindle body 2 are both equipped with a threaded connector 3;

[0022] It also includes a bracket 4, the interior of which is regularly provided with positioning connection holes that match the machine tool;

[0023] When in use, the bracket 4 is fixed to the machine tool through relevant positioning connectors;

[0024] The inner wall of the bracket 4 is rotatably provided with an extension frame 5, the inner wall of the bracket 4 is rotatably connected with a lifting screw rod 13, the peripheral side surface of the lifting screw rod 13 is transmission-connected with the extension frame 5, the two side surfaces of the extension frame 5 are slidably connected with the bracket 4, and a handle is fixedly provided at the end of the lifting screw rod 13;

[0025] By setting the extension frame 5, the layout position of the transmission coil 8 can be quickly adjusted. By adjusting the layout position of the transmission coil 8, after the transmission coil 8 is rotated, the two screw sleeves 12 can be tightly connected with the two threaded connectors 3;

[0026] An air guide tube 6 is fixedly installed on the inner wall of the extension frame 5, and a distance adjusting member 7 and a transmission coil 8 arranged in parallel with the air guide tube 6 are rotatably connected to the inner wall of the extension frame 5, and the distance adjusting member 7 is driven by the transmission coil 8. The peripheral side of the distance adjusting member 7 is transmission-connected to two symmetrically arranged shifting plates 9 with adjustable spacing;

[0027] The pitch adjusting member 7 includes a pitch adjusting screw rod rotatably connected to the extension frame 5, and the peripheral side surface of the pitch adjusting screw rod is symmetrically provided with a positive thread portion and a reverse thread portion, and the peripheral side surfaces of the positive thread portion and the reverse thread portion are respectively transmission-connected to the two shifting plates 9, and a driven gear 15 is fixedly installed in the middle of the pitch adjusting screw rod, and a transmission gear ring 14 is fixedly installed on the peripheral side surface of the transmission coil 8, and the peripheral side surface of the transmission gear ring 14 is transmission-connected to the driven gear 15;

[0028] By setting the distance adjusting member 7, when the transmission coil 8 rotates, it can drive the two shifting plates 9 to move synchronously and quickly change the distance between the two shifting plates 9;

[0029] When the device needs to be installed on two threaded connectors 3, the transmission coil 8 is rotated in the positive direction, the two shift plates 9 and the two screw sleeves 12 move away from each other, and the two screw sleeves 12 rotate in the same direction when moving away from each other and are respectively connected with the two threaded connectors 3 by threads;

[0030] When the device needs to be disassembled, the transmission coil 8 is rotated in the opposite direction, the two shift plates 9 and the two screw sleeves 12 approach each other, and the two screw sleeves 12 rotate in the same direction when approaching each other and separate from the two threaded connectors 3 respectively, thereby completing the rapid disassembly of the device;

[0031] The inner walls of the two shift plates 9 are fixedly mounted with air distribution pipes 10, and the peripheral sides of the two air distribution pipes 10 are slidably connected with the air guide pipe 6. The inner wall of the transmission coil 8 is transmission-connected and slidably matched with two symmetrically arranged driven coils 11, and the ends of the two driven coils 11 are fixedly mounted with screw sleeves 12, and the inner walls of the two screw sleeves 12 are respectively threadedly connected with the two threaded connectors 3;

[0032] The inside of the air guide pipe 6 is fixed with an air guide groove which has openings at both ends and is slidably connected to the air distribution pipe 10. The inside of the transmission coil 8 is fixed with a transmission guide groove which has openings at both ends and is slidably connected to the driven coil 11. The cross-sections of the air guide groove, the transmission guide groove, the driven coil 11 and the air distribution pipe 10 are all regular polygons, and a sealing ring which cooperates with the air guide pipe 6 is fixedly installed on the peripheral side of the air distribution pipe 10.

[0033] The inner walls of the two gas distribution pipes 10 are rotationally connected to the two driven rotary pipes 11 respectively.

[0034] The end of the gas distribution pipe 10 is fixedly connected to an air ring 16 rotatably connected to the driven coil 11 . A group of air holes 17 distributed in a circumferential array and connected to the air ring 16 are opened inside the driven coil 11 .

[0035] The working principle and use process of this utility model:

[0036] When in use, the bracket 4 is fixed to the machine tool, and the position of the transmission coil 8 is adjusted by driving the lifting screw 13 according to the spacing between the two threaded connectors 3. The transmission coil 8 is driven so that after the transmission coil 8 is rotated, the two screw sleeves 12 can be tightly threadedly connected with the two threaded connectors 3.

[0037] When the device needs to be installed on two threaded connectors 3, the transmission coil 8 is rotated in the positive direction, the two shift plates 9 and the two screw sleeves 12 move away from each other, and the two screw sleeves 12 rotate in the same direction when moving away from each other and are respectively connected with the two threaded connectors 3 by threads;

[0038] When the device needs to be disassembled, the transmission coil 8 is rotated in the opposite direction, the two shift plates 9 and the two screw sleeves 12 approach each other, and the two screw sleeves 12 rotate in the same direction when approaching each other and separate from the two threaded connectors 3 respectively, thereby completing the rapid disassembly of the device.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machine tool spindle cutting cylinder extension device, comprising a cutting cylinder body (1) and a spindle body (2), wherein the bottom end of the cutting cylinder body (1) and the top end of the spindle body (2) are both equipped with threaded connectors (3), characterized in that: The invention also comprises a bracket (4), the inner wall of which is movably mounted with an extension frame (5), the inner wall of which is fixedly mounted with an air guide tube (6), the inner wall of which is rotatably connected with a distance adjusting member (7) and a transmission coil (8) arranged in parallel with the air guide tube (6), the distance adjusting member (7) is driven by the transmission coil (8), the peripheral side surface of the distance adjusting member (7) is transmission-connected with two symmetrically arranged shifting plates (9) with adjustable spacing, the inner walls of the two shifting plates (9) are both An air distribution pipe (10) is fixedly installed, and the circumferential side surfaces of the two air distribution pipes (10) are both slidably connected to the air guide pipe (6). The inner wall of the transmission coil (8) is transmission-connected and slidably matched with two symmetrically arranged driven coils (11). The ends of the two driven coils (11) are both fixedly installed with screw sleeves (12). The inner walls of the two screw sleeves (12) are respectively threadedly connected to the two threaded connectors (3). The inner walls of the two air distribution pipes (10) are respectively rotationally connected to the two driven coils (11).

2. The machine tool spindle cutting cylinder extension device according to claim 1, characterized in that: The inner wall of the bracket (4) is rotatably connected to a lifting screw rod (13), the peripheral side surface of the lifting screw rod (13) is transmission-connected to the extension frame (5), both side surfaces of the extension frame (5) are slidably connected to the bracket (4), and a handle is fixedly mounted on the end of the lifting screw rod (13).

3. The machine tool spindle cutting cylinder extension device according to claim 2, characterized in that: The pitch adjusting member (7) comprises a pitch adjusting screw rod rotatably connected to the extension frame (5); a circumferential side surface of the pitch adjusting screw rod is symmetrically provided with a forward threaded portion and a reverse threaded portion; the circumferential side surfaces of the forward threaded portion and the reverse threaded portion are respectively transmission-connected to two shifting plates (9); a driven gear (15) is fixedly mounted on the middle portion of the pitch adjusting screw rod; a transmission gear ring (14) is fixedly mounted on the circumferential side surface of the transmission coil (8); and the circumferential side surface of the transmission gear ring (14) is transmission-connected to the driven gear (15).

4. The machine tool spindle cutting cylinder extension device according to claim 3, characterized in that: The air guide pipe (6) is fixedly provided with an air guide groove with openings at both ends and slidably connected to the air distribution pipe (10), and the transmission coil (8) is fixedly provided with a transmission guide groove with openings at both ends and slidably connected to the driven coil (11). The cross-sections of the air guide groove, the transmission guide groove, the driven coil (11) and the air distribution pipe (10) are all regular polygons, and a sealing ring that cooperates with the air guide pipe (6) is fixedly installed on the peripheral side of the air distribution pipe (10).

5. The machine tool spindle cutting cylinder extension device according to claim 4, characterized in that: The end of the gas distribution pipe (10) is fixedly connected to an air ring (16) rotatably connected to the driven rotary pipe (11), and a group of air holes (17) distributed in a circumferential array and connected to the air ring (16) are opened inside the driven rotary pipe (11).

6. The machine tool spindle cutting cylinder extension device according to claim 1, characterized in that: The bracket (4) has regularly distributed positioning connection holes inside for matching with the machine tool.

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