A power turret with synchronous belt drive and Y-axis synchronous belt lifting.

Abstract

This utility model discloses a power turret with synchronous belt power transmission and Y-axis synchronous belt lifting, including a power turret body, which includes a Y-axis support bracket, and a power box is installed inside the Y-axis support bracket. Through the design of the power mechanism, when power is driven for cutting, the active synchronous pulley three rotates, driving the driven synchronous pulley four and the output shaft to rotate via the synchronous belt two. The output shaft rotation then drives the power tool holder. Therefore, during driving, the active synchronous pulley three can be designed with a 1:1 / 2:1 / 3:1 speed variation to achieve high-speed output of the power turret, thus providing power output to the power tool holder. The active synchronous pulley three, driven synchronous pulley four, and synchronous belt two replace the traditional gearbox transmission, optimizing problems such as low transmission efficiency, high transmission temperature rise, and high noise, achieving high-speed and high-precision machining performance, greatly reducing machining and assembly difficulty, improving production efficiency, and reducing production costs.

Description

Technical Field

[0001] This utility model belongs to the field of power turret technology, specifically relating to a power turret with synchronous belt power transmission and Y-axis synchronous belt lifting. Background Technology

[0002] The existing power turret (also known as the tool post) is a key core component used in CNC machine tools. The current traditional turret can only be equipped with turning tools or boring tools for basic turning operations.

[0003] In the current power turret industry, its power output structure mainly realizes the power output function from the power motor to the power head through gear transmission. However, in the gear transmission process of the power turret, losses will occur due to meshing friction. Increased friction between gears leads to a decrease in transmission efficiency, resulting in energy waste. As a result, the gear transmission cannot achieve high-speed transmission power output.

[0004] When the power turret gearbox is working, the friction of the gears and the operation of the bearings will generate a lot of heat. If the heat dissipation is not timely, the internal temperature of the gearbox will rise, the viscosity of the lubricating oil will decrease, the lubrication performance will deteriorate, the wear of the gears and bearings will be accelerated, and the service life of the gearbox will be reduced. At the same time, the complex structure of the gearbox requires extremely high machining precision, and noise will also be generated when the gears are not effectively lubricated and meshed after installation.

[0005] The Y-axis servo motor is directly connected to the lead screw in the power turret with a Y-axis. The overall height of the power turret is too high, which will increase the overall height of the machine tool and expand the machine tool's footprint when installed on it. To address this issue, this utility model proposes a power turret with synchronous belt power transmission and Y-axis synchronous belt lifting. Utility Model Content

[0006] The purpose of this utility model is to provide a power turret with synchronous belt power transmission and Y-axis synchronous belt lifting, in order to solve the problems mentioned in the background art, such as friction loss caused by gear transmission, which prevents the gear transmission from achieving high speed transmission power output, internal temperature rise during internal operation due to friction, inadequate heat dissipation, which also leads to a decrease in lubricating oil viscosity, poor lubrication performance, accelerated wear of gears and bearings, reduced service life of gearbox, and increased cost and space occupation during machine tool installation.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a power turret with synchronous belt power transmission and Y-axis synchronous belt lifting, comprising a power turret body, the power turret body including a Y-axis support bracket, a power box being disposed inside the Y-axis support bracket, a rear cover being fixedly installed on the rear surface of the power box by bolts, a power tool holder being disposed at the end of the power box, a tool disc being fixedly positioned on the outer surface of the power tool holder, and the power turret body further comprising:

[0008] The tool changing locking mechanism includes a tool changing locking component disposed on one side inside the power box; the power mechanism includes a power drive component disposed in the middle position inside the power box, and the end of the power drive component is provided with an output transmission component;

[0009] The Y-axis lifting mechanism includes a lifting and rotating assembly disposed on one side inside the Y-axis support bracket. Mounting assemblies are provided at the connection points between the two ends of the lifting and rotating assembly and the interior of the Y-axis support bracket, and a driving assembly is provided at the top of the lifting and rotating assembly.

[0010] Preferably, the tool change locking assembly includes a tool change servo motor located at the top of the power box. A tool change reducer is bolted to the end of the tool change servo motor located inside the power box. A micro-gear is provided at the end of the tool change reducer. An indexing end gear is provided at the end of the power box, meshing with the micro-gear. The indexing end gear is connected to the power tool holder and the tool disc by screws. A fixed end gear is integrally formed at the rear surface edge of the indexing end gear. A piston end gear is provided on one side of the fixed end gear. A hydraulic cylinder is bolted to the side of the tool change reducer, and the end of the hydraulic cylinder is bolted to the piston end gear.

[0011] Preferably, the power drive assembly includes a power motor that is bolted to one side of the power box, and an active synchronizing pulley is bolted to the end of the power motor.

[0012] Preferably, the output transmission assembly includes an output shaft disposed at the end of the power tool holder, and the end of the output shaft is installed in a flat-slot-type insertion connection with the interior of the power tool holder. An output shaft mounting seat is bolted to the end of the output shaft inside the power box, and the output shaft is mounted to the interior of the output shaft mounting seat via bearings. A driven synchronous pulley four is fixedly mounted on the end surface of the output shaft, and a synchronous belt two drives the connection between the driven synchronous pulley four and the driving synchronous pulley three.

[0013] Preferably, the lifting and rotating assembly includes a lead screw disposed on one side inside the Y-axis support bracket, a coupling is disposed on the outer surface of the end of the lead screw, and the coupling is fixed to the inner top end of the Y-axis support bracket by bolts, and a movable seat is disposed on the outer surface of the lead screw, and the surface of the movable seat is fixed to the surface of the power box by bolts.

[0014] Preferably, the mounting assembly includes a top bearing seat fixed to the top end of one side of the Y-axis support bracket, a bottom bearing seat fixed to the bottom end of one side of the Y-axis support bracket, and the two ends of the lead screw are respectively rotatably connected to the interior of the top bearing seat and the bottom bearing seat through bearings.

[0015] Preferably, the drive assembly includes a driven synchronous pulley two fixedly mounted on the surface of the Y-axis support bracket at the top of the lead screw by bolts, a base fixedly mounted on the tail end of the Y-axis support bracket by bolts, a Y-axis servo motor fixedly mounted on the bottom end of the base by bolts, an active synchronous pulley one fixedly mounted on the end of the Y-axis servo motor on the upper surface of the base by bolts, and a synchronous belt one driving the drive synchronous pulley one at the connection between the active synchronous pulley one and the driven synchronous pulley two.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] By designing the power mechanism, when cutting is driven by power, the rotation of the active synchronous pulley three drives the rotation of the driven synchronous pulley four and the output shaft through the synchronous belt two. When the output shaft rotates, it drives the power tool holder. Therefore, during driving, the active synchronous pulley three can be designed with a speed change of 1:1 / 2:1 / 3:1 to achieve high-speed output of the power tool turret, which can realize the power output to the power tool holder. The active synchronous pulley three, the driven synchronous pulley four, and the synchronous belt two replace the traditional gearbox transmission, which optimizes the problems of low transmission efficiency, large transmission temperature rise, and high noise of gearbox transmission, realizes high-speed and high-precision machining performance, greatly reduces the difficulty of machining and assembly, improves production efficiency, and reduces production costs.

[0018] By designing a Y-axis lifting mechanism, the rotating lead screw can drive the moving seat to move, thereby driving the power box to be stably raised and lowered to the installation position. The height adjustment is convenient, and the lead screw adopts a two-end fixed method, which can realize the pre-tensioning of the lead screw, improving the repeatability and reverse positioning accuracy of the lead screw transmission. The positioning accuracy is within 0.005mm, the backlash accuracy is within 0.01mm, and the synchronous gear tooth ratio is 1:2. This improves the rigidity of the Y-axis while reducing transmission error, and can reduce the height of the turret by 200mm, thereby reducing the overall height of the machine tool and the footprint of the machine tool. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the rear surface structure of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the indexing end gear plate, piston end gear plate and fixed end gear plate of this utility model.

[0023] Figure 5 This is a schematic diagram of the Y-axis lifting mechanism of this utility model;

[0024] Figure 6 This is a schematic diagram of the power mechanism structure of this utility model;

[0025] In the diagram: 100. Power turret body; 101. Y-axis support bracket; 1011. Y-axis servo motor; 1012. Active synchronous pulley one; 1013. Synchronous belt one; 1014. Lead screw; 1015. Driven synchronous pulley two; 1016. Bottom bearing housing; 1017. Machine base; 1018. Coupling; 1019. Moving base; 1010. Top bearing housing; 102. Power box; 1021. Power motor ; 1022. Active synchronous pulley three; 1023. Synchronous belt two; 1024. Driven synchronous pulley four; 1025. Output shaft mounting base; 1026. Output shaft body; 103. Power tool holder; 104. Tool disc; 1041. Tool changing servo motor; 1042. Tool changing reducer; 1043. Indexing end gear disc; 1044. Piston end gear disc; 1045. Hydraulic cylinder; 1046. Fixed end gear disc; 105. Rear cover. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 6 This utility model provides a technical solution: a power turret with synchronous belt power transmission and Y-axis synchronous belt lifting, including a power turret body 100, a Y-axis support bracket 101, a power box 102 inside the Y-axis support bracket 101, a rear cover 105 fixedly installed on the rear surface of the power box 102 by bolts, a power tool holder 103 at the end of the power box 102, a tool disc 104 fixedly positioned on the outer surface of the power tool holder 103, and the power turret body 100 also includes:

[0028] The tool changing locking mechanism includes a tool changing locking assembly located inside the power box 102. The tool changing locking assembly includes a tool changing servo motor 1041 located at the top of the power box 102. A tool changing reducer 1042 is bolted to the end of the tool changing servo motor 1041 inside the power box 102. A micro gear is located at the end of the reducer 1042. An indexing end gear 1043 meshes with the micro gear at the end of the power box 102. The indexing end gear 1043 is connected to the power tool holder 103 and the tool disc 104 by screws or pins. A fixed end gear 1046 is integrally formed at the rear surface edge of the indexing end gear 1043. A piston end gear 1044 is located on one side of the fixed end gear 1046. A hydraulic cylinder 1045 is bolted to the side of the tool changer reducer 1042, and the end of the hydraulic cylinder 1045 is bolted to the piston end gear plate 1044. The hydraulic cylinder 1045 drives the piston end gear plate 1044 to move, separating the piston end gear plate 1044 from the fixed end gear plate 1046 and the piston end gear plate 1044, so that the three end gear plates disengage from each other. The power tool holder 103 is in a rotatable state. The tool changer servo motor 1041 is started to drive the tool changer reducer 1042 to rotate and the power tool holder 103 rotates together to the designated tool position. The hydraulic cylinder 1045 is reset again to drive the indexing end gear plate 1043 to reset and re-engage, thereby locking and fixing the power tool holder 103 and ensuring that the power tool holder 103 remains stable during the cutting process.

[0029] The power mechanism includes a power drive component located in the middle of the power box 102. The end of the power drive component is provided with an output transmission component. When the power turret body 100 is installed and in use, the power mechanism drives the power tool holder 103 and the tool disc 104 to rotate. This replaces the traditional gearbox transmission, optimizes the problems of low transmission efficiency, large transmission temperature rise, and high noise of gearbox transmission, and achieves high-speed and high-precision machining performance. It greatly reduces the difficulty of machining and assembly, improves production efficiency, and reduces production costs.

[0030] In order to facilitate the driving operation of the power drive assembly, in this embodiment, preferably, the power drive assembly includes a power motor 1021 that is fixedly installed on one side of the power box 102 by bolts, and an active synchronous pulley 1022 is fixedly installed at the end of the power motor 1021 by bolts, so that the power motor 1021 can drive the active synchronous pulley 1022 to rotate and adjust.

[0031] To facilitate the driving of the power tool holder 103 and the cutter head 104 for cutting via the output transmission assembly, in this embodiment, preferably, the output transmission assembly includes an output shaft 1026 disposed at the end of the power tool holder 103, and the end of the output shaft 1026 is installed in a flat-slot-fitted connection with the interior of the power tool holder 103. An output shaft mounting seat 1025 is bolted to the end of the output shaft 1026 inside the power box 102, and the output shaft 1026 and the interior of the output shaft mounting seat 1025 are mounted via bearings. A driven synchronous pulley four 1024 is fixedly mounted on the end surface of the output shaft 1026. A synchronous belt two 1023 drives the driven synchronous pulley three 1022 to rotate along with the output shaft 1026, and the output shaft 1026 drives the power tool holder 103 and the cutter head 104 to rotate for cutting operations.

[0032] The Y-axis lifting mechanism includes a lifting and rotating assembly located inside the Y-axis support bracket 101. Mounting components are installed at the connection points between the two ends of the lifting and rotating assembly and the interior of the Y-axis support bracket 101. A drive assembly is located at the top of the lifting and rotating assembly. This allows for height adjustment of the power box 102 and the power tool holder 103 during installation, improving Y-axis rigidity while reducing transmission errors. It can also lower the turret height by 200mm, reducing the overall height of the machine tool and its footprint.

[0033] To facilitate height adjustment via the lifting and rotating assembly, in this embodiment, preferably, the lifting and rotating assembly includes a lead screw 1014 disposed on one side inside the Y-axis support bracket 101. A coupling 1018 is disposed on the outer surface of the end of the lead screw 1014, and the coupling 1018 is fixed to the inner top end of the Y-axis support bracket 101 by bolts. A movable seat 1019 is disposed on the outer surface of the lead screw 1014, and the surface of the movable seat 1019 is fixed to the surface of the power box 102 by bolts. When the lead screw 1014 rotates, it can drive the movable seat 1019 and the power box 102 to be raised and lowered, which can reduce the height of the turret by 200mm, reduce the overall height of the machine tool, and reduce the footprint of the machine tool.

[0034] To facilitate the installation and rotational adjustment of the lead screw 1014 via the mounting assembly, in this embodiment, preferably, the mounting assembly includes a top bearing seat 1010 fixed to the top of one side of the Y-axis support bracket 101, and a bottom bearing seat 1016 fixed to the bottom of one side of the Y-axis support bracket 101. The two ends of the lead screw 1014 are rotatably connected to the interior of the top bearing seat 1010 and the bottom bearing seat 1016 respectively via bearings. When the two ends of the lead screw 1014 are driven, the fixed-end method can achieve pre-tensioning of the lead screw 1014, thereby improving the repeatability and reverse positioning accuracy of the lead screw 1014 transmission.

[0035] To facilitate lifting and lowering adjustment via the drive assembly, in this embodiment, preferably, the drive assembly includes a driven synchronous pulley 1015 bolted to the top of the lead screw 1014 on the surface of the Y-axis support bracket 101. A base 1017 is bolted to the tail end of the Y-axis support bracket 101, and a Y-axis servo motor 1011 is bolted to the bottom end of the base 1017. An active synchronous pulley 1012 is bolted to the end of the Y-axis servo motor 1011 on the upper surface of the base 1017. A synchronous belt 1013 drives the connection between the active synchronous pulley 1012 and the driven synchronous pulley 1015. When the Y-axis servo motor 1011 drives the active synchronous pulley 1012 to rotate, the synchronous belt 1013 drives the lead screw 1014 to rotate for lifting and lowering adjustment.

[0036] The working principle and usage process of this utility model: This type of synchronous belt power transmission and Y-axis synchronous belt lifting power turret is installed on a machine tool. After installation, when the machine tool receives a tool change command, the hydraulic cylinder 1045 drives the piston-end gear plate 1044 to move, separating the piston-end gear plate 1044 from the fixed-end gear plate 1046 and the piston-end gear plate 1044, causing the three end gear plates to disengage. This allows the micro-gear at the end of the tool change reducer 1042 to mesh with the indexing-end gear plate 1043. At this time, the power tool holder 103 is in a rotatable state, and the tool change servo motor 1041 is started to drive the tool change reducer. When the machine 1042 rotates, the tool changer 1042 drives the indexing end gear plate 1043 and the power tool holder 103 to rotate together, rotating the power tool holder 103 to the designated tool position. After the tool plate 104 is in place, the CNC system sends a signal to reset the drive end of the hydraulic cylinder 1045, driving the indexing end gear plate 1043 to reset. The end micro gear of the tool changer 1042 separates from the indexing end gear plate 1043, and re-engages the piston end gear plate 1044, the fixed end gear plate 1046, and the indexing end gear plate 1043, thereby locking and fixing the power tool holder 103 and ensuring that the power tool holder 103 remains stable during the cutting process.

[0037] Then, after the power tool holder 103 has been changed and locked in place, when it needs to be raised or lowered on the machine tool, the Y-axis servo motor 1011 can be turned to drive the active synchronous pulley 1012 to rotate. When the active synchronous pulley 1012 rotates, the synchronous belt 1013 drives the driven synchronous pulley 1015 and the lead screw 1014 to rotate. When the lead screw 1014 rotates, it drives the moving seat 1019 to move. Thus, when the moving seat 1019 moves, it drives the power box 102 to rise or fall, so that the power box 102 moves within the Y-axis support bracket 101 in a guided and limited manner. The power box 102 drives the power tool holder 103 to be stably raised and lowered to the installation position, and the height adjustment is convenient. The lead screw 1014 adopts a two-end fixed method, which can realize the pre-tension of the lead screw 1014, improve the repeatability and reverse positioning accuracy of the lead screw 1014 transmission, with a positioning accuracy within 0.005mm and a backlash accuracy within 0.01mm. The synchronous gear tooth ratio is 1:2, which improves the rigidity of the Y-axis and reduces the transmission error. It can reduce the height of the tool turret by 200mm, reduce the overall height of the machine tool, and reduce the footprint of the machine tool.

[0038] When cutting is driven by power, the power motor 1021 drives the active synchronous pulley 1022 to rotate. When the active synchronous pulley 1022 rotates, it drives the driven synchronous pulley 1024 to rotate via the synchronous belt 1023. When the driven synchronous pulley 1024 rotates, it drives the output shaft mounting base 1025 and the output shaft body 1026 to rotate. When the output shaft body 1026 rotates, it drives the power tool holder 103 and the tool disc 104 to rotate. Therefore, during driving, the active synchronous pulley 1022 can be designed with a speed change of 1:1 / 2:1 / 3:1 to achieve high-speed output of the power turret, which can realize the power output to the power tool holder 103. The active synchronous pulley 1022, the driven synchronous pulley 1024, and the synchronous belt 1023 replace the traditional gearbox transmission, which optimizes the problems of low transmission efficiency, large transmission temperature rise, and high noise of gearbox transmission, realizes high-speed and high-precision machining performance, greatly reduces the difficulty of machining and assembly, improves production efficiency, and reduces production costs.

[0039] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power turret with synchronous belt power transmission and Y-axis synchronous belt lifting, comprising a power turret body (100), the power turret body (100) including a Y-axis support bracket (101), a power box (102) disposed inside the Y-axis support bracket (101), a rear cover (105) fixedly mounted on the rear surface of the power box (102) by bolts, a power tool holder (103) disposed at the end of the power box (102), and a tool disc (104) fixedly positioned on the outer surface of the power tool holder (103), characterized in that: The power turret body (100) is also equipped with: The tool change locking mechanism includes a tool change locking assembly disposed on one side inside the power box (102); The power mechanism includes a power drive assembly located at the middle position inside the power box (102), and the end of the power drive assembly is provided with an output transmission assembly; The Y-axis lifting mechanism includes a lifting and rotating assembly disposed on one side inside the Y-axis support bracket (101). The two ends of the lifting and rotating assembly are connected to the interior of the Y-axis support bracket (101) with mounting components, and the top of the lifting and rotating assembly is provided with a driving component.

2. The power turret with synchronous belt power transmission and Y-axis synchronous belt lifting as described in claim 1, characterized in that: The tool change locking assembly includes a tool change servo motor (1041) located at the top of the power box (102). A tool change reducer (1042) is bolted to the end of the tool change servo motor (1041) inside the power box (102). A micro gear is provided at the end of the tool change reducer (1042). An indexing end gear (1043) meshes with the micro gear at the end of the power box (102). The indexing end gear plate (1043) is connected to the power tool holder (1044) by screws. The rear surface edge of the indexing end gear plate (1043) is integrally formed into a fixed end gear plate (1046). A piston end gear plate (1044) is provided on one side of the fixed end gear plate (1046). A hydraulic cylinder (1045) is fixedly installed on the side of the tool changer (1042) by bolts. The end of the hydraulic cylinder (1045) is fixed to the piston end gear plate (1044) by bolts.

3. The power turret with synchronous belt power transmission and Y-axis synchronous belt lifting as described in claim 1, characterized in that: The power drive assembly includes a power motor (1021) that is bolted to one side of the power box (102), and an active synchronous pulley (1022) is bolted to the end of the power motor (1021).

4. The power turret with synchronous belt power transmission and Y-axis synchronous belt lifting as described in claim 3, characterized in that: The output transmission assembly includes an output shaft (1026) disposed at the end of the power tool holder (103), and the end of the output shaft (1026) is installed in the power tool holder (103) through a flat slot. The power box (102) is located at the end of the output shaft (1026) and is fixed with an output shaft mounting seat (1025) by bolts. The output shaft (1026) and the output shaft mounting seat (1025) are installed in the interior by bearings. A driven synchronous pulley four (1024) is fixedly installed on the end surface of the output shaft (1026), and a synchronous belt two (1023) is driven at the connection between the driven synchronous pulley four (1024) and the driving synchronous pulley three (1022).

5. The power turret with synchronous belt power transmission and Y-axis synchronous belt lifting as described in claim 1, characterized in that: The lifting and rotating assembly includes a lead screw (1014) disposed on one side inside the Y-axis support bracket (101). A coupling (1018) is provided on the outer surface of the end of the lead screw (1014), and the coupling (1018) is fixed to the inner top end of the Y-axis support bracket (101) by bolts. A movable seat (1019) is provided on the outer surface of the lead screw (1014), and the surface of the movable seat (1019) is fixed to the surface of the power box (102) by bolts.

6. The power turret with synchronous belt power transmission and Y-axis synchronous belt lifting as described in claim 5, characterized in that: The mounting assembly includes a top bearing seat (1010) fixed to the top of one side of the Y-axis support bracket (101), a bottom bearing seat (1016) fixed to the bottom of one side of the Y-axis support bracket (101), and the two ends of the lead screw (1014) are rotatably connected to the interior of the top bearing seat (1010) and the bottom bearing seat (1016) respectively through bearings.

7. The power turret with synchronous belt power transmission and Y-axis synchronous belt lifting as described in claim 5, characterized in that: The drive assembly includes a driven synchronous pulley two (1015) fixedly mounted on the surface of the Y-axis support bracket (101) at the top of the lead screw (1014) by bolts. A base (1017) is fixedly mounted on the tail end of the Y-axis support bracket (1011) by bolts. A Y-axis servo motor (1011) is fixedly mounted on the bottom end of the base (1017) by bolts. An active synchronous pulley one (1012) is fixedly mounted on the upper surface of the base (1017) at the end of the Y-axis servo motor (1011). A synchronous belt one (1013) drives the connection between the active synchronous pulley one (1012) and the driven synchronous pulley two (1015).

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