A tool changing device for planetary gear turning CNC vertical lathe

Abstract

The present application relates to a tool changing device for a planetary gear turning CNC vertical lathe, comprising a positioning bracket, a driving motor and multiple tool changing tables, wherein the driving motor is mounted on the positioning bracket and driven to connect the retracting and unfolding assembly, wherein the multiple tool changing tables are mounted on the retracting and unfolding assembly, wherein the retracting and unfolding assembly comprises an active deflection bracket, a positioning shaft, multiple rotating brackets, a driven deflection bracket, a positioning slider, an insert shaft and a driving gear, wherein the active deflection bracket and the driving gear are both connected to the output end of the driving motor. Through the coordinated use of the retracting and unfolding assembly and the multiple tool changing tables, when there is no need to change tools, the multiple tool changing tables can be moved upward and tilted by the retracting and unfolding assembly, so that the space occupied by the multiple tool changing tables can be reduced when there is no need to change tools; through the retracting and unfolding assembly, the multiple tool changing tables can be moved toward each other until the multiple tool changing tables are in an upright state, so that it is convenient for the manipulator to grab the tool for tool changing operations.

Description

Technical Field

[0001] The present application relates to the technical field of CNC machine tools, and in particular to a tool changing device for planetary gear turning CNC vertical lathes. Background Art

[0002] Planetary gears are important parts in gearbox components. The planetary gear finishing process mainly processes the outer circle, inner hole and inner hole back-cut groove. During the processing, multiple tool changes are required depending on the different processing steps.

[0003] In the related art, a Chinese patent with publication number CN217702510U proposes a tool changing device for a CNC machine tool, which clamps a support member in a slot of a tool holder, mounts a tool in a through hole of the support member, and uses a manipulator to automatically perform tool changing operations in cooperation with a rotating tool holder.

[0004] In this type of tool changing device for CNC machine tools, the tool holder is generally disc-shaped. By rotating the tool holder at different angles, the corresponding tool set on the tool holder can be brought close to the robot arm. However, since multiple tool holders need to be placed on the tool holder, the overall diameter of the tool holder is large and it will occupy a larger space in the machine tool. Utility Model Content

[0005] In order to improve the problem that multiple tool holders need to be placed on the tool holder, resulting in a larger overall diameter of the tool holder, which in turn occupies a larger space in the machine tool, the present application provides a tool changing device for planetary gear turning CNC vertical lathe.

[0006] The present application provides a tool changing device for planetary gear turning CNC vertical lathe, which adopts the following technical solution:

[0007] A tool changing device for a planetary wheel turning CNC vertical lathe comprises a positioning bracket, a driving motor and a plurality of tool changing tables, wherein the driving motor is mounted on the positioning bracket and driven to be connected to a retracting and unfolding assembly, wherein the plurality of tool changing tables are mounted on the retracting and unfolding assembly, wherein the retracting and unfolding assembly comprises an active deflection bracket, a positioning shaft, a plurality of rotating brackets, a driven deflection bracket, a positioning slider, an inserting shaft and a driving gear, wherein the active deflection bracket and the driving gear are both connected to the output end of the driving motor, the positioning shaft is arranged below the active deflection bracket and is rotationally connected to the positioning bracket, the plurality of positioning sliders are all slidably connected to the positioning bracket, and each positioning slider is provided with two inserting shafts rotationally connected thereto, the outer side of the positioning shaft and the positioning slider The outer side of the lower plug-in shaft of the two plug-in shafts inserted on the upper part is sleeved with a rotating bracket fixedly connected thereto, and the outer side of the upper plug-in shaft of the two plug-in shafts inserted on each positioning slide block is sleeved with a driven deflection bracket fixedly connected thereto, and the driven deflection bracket is rotatably connected to the rotating bracket at one end close to the adjacent rotating bracket, and the outer side of the positioning shaft and each plug-in shaft is sleeved with a driven gear fixedly connected thereto, and the driving gear and the adjacent driven gear and the driven gears on the outer sides of the two plug-in shafts inserted on each positioning slide block are meshed with each other, and multiple sets of tool changing tables are respectively installed on the top of the active deflection bracket and multiple driven deflection brackets, so that the retractable and unfolding components adjust the position states of the multiple sets of tool changing tables.

[0008] Furthermore, the tool changing platform includes a support plate and a plurality of tool holders, the support plate is fixedly connected to the active deflection bracket or the driven deflection bracket, the plurality of tool holders are detachably mounted and fixed on the side of the support plate facing away from the active deflection bracket or the driven deflection bracket, and the sum of the heights of the tool holders and the tools inserted into the tool holders is less than the spacing between the two sets of parallel inclined tool changing platforms.

[0009] Furthermore, a guide groove is formed on the positioning bracket, and multiple plug shafts extend into the guide groove toward one end of the positioning bracket. The width of the guide groove is adapted to the diameter of the plug shaft. A first socket and a second socket are also formed at the upper end of the positioning bracket. The output end of the driving motor passes through the first socket and is connected to the active deflection bracket and the active gear. The positioning shaft is inserted into the second socket and is rotatably connected thereto.

[0010] Furthermore, the insertion shaft is inserted in the middle part of the driven deflection bracket, the top of one end of the driven deflection bracket is connected to the tool changing table, and the other end of the driven deflection bracket is rotatably connected to the rotating bracket. The sum of the length of the rotating bracket and the length from the connection point between the driven deflection bracket and the rotating bracket to the connection point between the driven deflection bracket and the insertion shaft is greater than the length of the tool changing table.

[0011] Furthermore, the modules and the numbers of teeth of the driving gear and the driven gear are equal.

[0012] The beneficial technical effect of the present application is: through the coordinated use of the folding and unfolding components and multiple sets of tool changing tables, when there is no need to change tools, the folding and unfolding components can be used to move the multiple sets of tool changing tables upward and tilt them, so that the space occupied by the multiple sets of tool changing tables can be reduced when there is no need to change tools; the folding and unfolding components can be used to move the multiple sets of tool changing tables toward each other until the multiple sets of tool changing tables are in an upright state, making it convenient for the robot to grab the tool for tool changing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a tool changing device for a planetary gear turning CNC vertical lathe according to an embodiment of the present application;

[0014] Figure 2 is a schematic structural diagram of a positioning bracket in an embodiment of the present application;

[0015] Figure 3 It is a schematic diagram of the coordination structure between the stowage and extension assembly and the tool changer in the embodiment of the present application;

[0016] Figure 4 yes Figure 3 Schematic diagram of the structure of the central retractable and unfolding assembly and the tool changing table at another angle.

[0017] Figure numerals: 10, positioning bracket; 11, first plug hole; 12, second plug hole; 13, guide slide; 20, drive motor; 30, retraction and expansion assembly; 31, active deflection bracket; 32, positioning shaft; 33, rotating bracket; 34, driven deflection bracket; 35, positioning slider; 36, plug shaft; 37, driving gear; 38, driven gear; 40, tool changing table; 41, support plate; 42, tool holder. DETAILED DESCRIPTION

[0018] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0019] The embodiment of the present application discloses a tool changing device for a planetary gear turning CNC vertical lathe. Figure 1 The tool changing device of the planetary wheel turning CNC vertical lathe comprises a positioning bracket 10, a driving motor 20 and a plurality of tool changing tables 40. The driving motor 20 is mounted on the positioning bracket 10 and drives the retracting and unfolding assembly 30. The plurality of tool changing tables 40 are all mounted on the retracting and unfolding assembly 30, and the retracting and unfolding assembly 30 can be used to adjust the position of the plurality of tool changing tables 40 by the retracting and unfolding assembly 30.

[0020] The positioning bracket 10 can be installed and fixed in a CNC machine tool, and its installation position is close to the manipulator for tool changing in the CNC machine tool. Figure 2 The positioning bracket 10 is formed with a first plug hole 11, a second plug hole 12 and a guide slot 13 that match the retracting and unfolding assembly 30.

[0021] See also Figure 3 and Figure 4The retracting and unfolding assembly 30 includes an active deflection bracket 31, a positioning shaft 32, a plurality of rotating brackets 33, a driven deflection bracket 34, a positioning slider 35, an insertion shaft 36, and a driving gear 37. The module and the number of teeth of the driving gear 37 and the driven gear 38 are equal. The output end of the driving motor 20 passes through the first plug hole 11, and the active deflection bracket 31 and the driving gear 37 are both connected to the output end of the driving motor 20, so that the driving motor 20 can drive the active deflection bracket 31 and the driving gear 37 to deflect. The positioning shaft 32 is arranged below the active deflection bracket 31 and inserted in the second plug hole 12, and the positioning shaft 32 is rotatably connected to the positioning bracket 10. The positioning shaft 32 is sleeved with a driven gear 38 that is fixedly connected to the positioning shaft 32 and meshes with the driving gear 37, and the main positioning shaft 32 is also sleeved with a rotating bracket 33 that is fixedly connected to the positioning shaft 32, so that when the driving gear 37 deflects, the meshing cooperation between the driving gear 37 and the adjacent driven gear 38 can be utilized to make the positioning shaft 32 drive the rotating bracket 33 connected thereto to produce a deflection action. Multiple positioning sliders 35 are all slidably connected to the positioning bracket 10, and each positioning slider 35 is inserted with two plug shafts 36 that are rotatably connected thereto, and multiple plug shafts 36 are all extended into the guide slot 13 toward one end of the positioning bracket 10, and the width of the guide slot 13 is adapted to the diameter of the plug shaft 36, so that the positioning slider 35 and the plug shaft 36 can move along the height direction of the positioning bracket 10. The outer side of the lower plug shaft 36 of the two plug shafts 36 inserted on the positioning slider 35 is sleeved with a rotating bracket 33 fixedly connected thereto; the outer side of the upper plug shaft 36 of the two plug shafts 36 inserted on the positioning slider 35 is sleeved with a driven deflection bracket 34 fixedly connected thereto. The plug shaft 36 is inserted in the middle of the driven deflection bracket 34, the top of one end of the driven deflection bracket 34 is connected to the tool changer 40, and the other end of the driven deflection bracket 34 (i.e., the end of the driven deflection bracket 34 close to the adjacent rotating bracket 33) is rotatably connected to the rotating bracket 33. The sum of the length of the rotating bracket 33 and the length from the connection between the driven deflection bracket 34 and the rotating bracket 33 to the connection between the driven deflection bracket 34 and the plug shaft 36 is greater than the length of the tool changer 40. The driven gears 38 on the outer sides of the two plug-in shafts 36 inserted on each positioning slide block 35 are meshed with each other, so that when the rotating bracket 33 connected to the positioning shaft 32 is deflected, the driven deflection bracket 34 connected to the rotating bracket 33 can be pushed to move downward, and the driven deflection bracket 34 can be deflected at the same time by the plug-in shaft 36; in addition, multiple rotating brackets 33 are deflected in parallel at the same time; multiple driven deflection brackets 34 are deflected in parallel at the same time and produce longitudinal movement at the same time. During the upward deflection of the active deflection bracket 31 and multiple driven deflection brackets 34, multiple tool changers 40 can be moved upward and retracted, and multiple tool changers 40 can be tilted to be located near the upper end of the positioning bracket 10 to reduce their occupied space.During the downward deflection of the active deflection bracket 31 and the multiple driven deflection brackets 34 , the multiple tool changing tables 40 can be moved downward and unfolded until they are all in a vertical state. At this time, the manipulator can move to grab the required tool for tool changing.

[0022] See also Figure 4 The tool changer 40 includes a support plate 41 and a plurality of tool seats 42. The support plate 41 is fixedly connected to the active deflection bracket 31 or the driven deflection bracket 34, and a plurality of tool seats 42 are detachably mounted and fixed on the side of the support plate 41 facing away from the active deflection bracket 31 or the driven deflection bracket 34, and the tool can be inserted into the tool seat 42 for placement. The sum of the heights of the tool seat 42 and the tool inserted into the tool seat 42 must be less than the distance between the two sets of tool changers 40 that are parallel and tilted after being retracted to avoid collision interference.

[0023] The system of the present invention may further include a control system for controlling the operation of the motor to automatically adjust the position of the tool changer. It should be understood that the control system has no particular limitations and can be implemented by conventional control techniques, which will not be described in detail herein.

[0024] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tool changing device for planetary wheel turning CNC vertical lathe, characterized in that: The invention comprises a positioning bracket (10), a driving motor (20) and a plurality of tool change platforms (40), wherein the driving motor (20) is mounted on the positioning bracket (10) and drives the retracting and unfolding assembly (30), and the plurality of tool change platforms (40) are mounted on the retracting and unfolding assembly (30). The retracting and unfolding assembly (30) comprises an active deflection bracket (31), a positioning shaft (32), a plurality of rotating brackets (33), a driven deflection bracket (34), a positioning slider (35), an insertion shaft (36) and a driving gear (37); the active deflection bracket (31) and the driving gear (37) are both connected to the output end of the driving motor (20); the positioning shaft (32) is arranged below the active deflection bracket (31) and is rotationally connected to the positioning bracket (10); the plurality of positioning sliders (35) are all slidably connected to the positioning bracket (10); and each of the positioning sliders (35) is inserted with two insertion shafts (36) rotationally connected thereto; and a rotating bracket (36) is sleeved on the outer side of the positioning shaft (32) and the outer side of the lower insertion shaft (36) of the two insertion shafts (36) inserted on the positioning slider (35) and is fixedly connected thereto. 3), the outer side of the upper plug shaft (36) of the two plug shafts (36) inserted on each positioning slider (35) is sleeved with a driven deflection bracket (34) fixedly connected thereto, and one end of the driven deflection bracket (34) close to the adjacent rotating bracket (33) is rotatably connected to the rotating bracket (33), the outer side of the positioning shaft (32) and each of the plug shafts (36) is sleeved with a driven gear (38) fixedly connected thereto, the driving gear (37) is meshed with the adjacent driven gear (38) and the driven gears (38) on the outer sides of the two plug shafts (36) inserted on each positioning slider (35), and the plurality of tool change tables (40) are respectively mounted on the top of the active deflection bracket (31) and the plurality of driven deflection brackets (34), so that the retracting and unfolding assembly (30) adjusts the position states of the plurality of tool change tables (40).

2. The tool changing device for planetary wheel turning CNC vertical lathe according to claim 1 is characterized in that: The tool changing table (40) comprises a support plate (41) and a plurality of tool seats (42); the support plate (41) is fixedly connected to an active deflection bracket (31) or a driven deflection bracket (34); and the plurality of tool seats (42) are detachably mounted on a side of the support plate (41) facing away from the active deflection bracket (31) or the driven deflection bracket (34).

3. The tool changing device for planetary wheel turning CNC vertical lathe according to claim 2 is characterized in that: The sum of the heights of the tool seat (42) and the tool inserted into the tool seat (42) is smaller than the distance between the two sets of parallel and inclined tool change tables (40).

4. The tool changing device for planetary wheel turning CNC vertical lathe according to claim 1 is characterized in that: A guide slot (13) is formed on the positioning bracket (10), and one end of the plurality of insertion shafts (36) facing the positioning bracket (10) extends into the guide slot (13), and the width of the guide slot (13) is adapted to the diameter of the insertion shaft (36).

5. The tool changing device for planetary wheel turning CNC vertical lathe according to claim 4 is characterized in that: The upper end of the positioning bracket (10) is also formed with a first plug hole (11) and a second plug hole (12); the output end of the drive motor (20) passes through the first plug hole (11) and is connected to the active deflection bracket (31) and the active gear (37); the positioning shaft (32) is inserted into the second plug hole (12) and is rotatably connected thereto.

6. The tool changing device for planetary wheel turning CNC vertical lathe according to claim 1, characterized in that: The insertion shaft (36) is inserted in the middle of the driven deflection bracket (34), the top of one end of the driven deflection bracket (34) is connected to the tool changing table (40), and the other end of the driven deflection bracket (34) is rotatably connected to the rotating bracket (33).

7. The tool changing device for planetary wheel turning CNC vertical lathe according to claim 6, characterized in that: The sum of the length of the rotating bracket (33) and the length from the connection point between the driven deflection bracket (34) and the rotating bracket (33) to the connection point between the driven deflection bracket (34) and the insertion shaft (36) is greater than the length of the tool changing table (40).

8. The tool changing device for planetary wheel turning CNC vertical lathe according to claim 1, characterized in that: The modules and the number of teeth of the driving gear (37) and the driven gear (38) are equal.

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