Power tool with synchronous belt drive

Abstract

The present application relates to the technical field of turning and boring, in particular to a power tool turret driven by a synchronous belt, comprising a shell, a Y-axis support bracket fixedly connected to the shell, a lifting assembly fixed to the Y-axis support bracket, a locking assembly arranged in the lifting assembly, a power assembly arranged outside the lifting assembly, and the locking assembly being connected to the power assembly, wherein the lifting assembly adopts a fixed support mode at both ends, can be pre-stretched, prevents the lifting assembly from elongating due to temperature rise during use, and thus improves the repeat positioning accuracy and reverse positioning accuracy of the screw drive, and compared with the traditional power tool turret, the locking assembly and the power assembly optimize the defects of low transmission efficiency of the gear box, large transmission temperature rise, and large noise, change the number of teeth of the transmission, increase the output power, realize high-speed and high-precision machining performance, and thus improve the production quality of products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of turning and boring, in particular to a power tool turret with synchronous driving power transmission. BACKGROUND

[0002] In the current power tool turret industry, the power output structure mainly realizes the power output function from the power motor to the power head through gear transmission. However, the gear transmission structure has obvious disadvantages:

[0003] In the process of power tool turret gear transmission, energy loss will be caused by meshing friction, and the sliding friction and rolling friction between gears will be intensified, resulting in a decrease in transmission efficiency and energy waste. Due to the gear transmission structure, the structure cannot realize high-rotation transmission power output. Meanwhile, when the power tool turret gear box is working, a large amount of heat will be generated by the friction of gears and the operation of bearings. If the heat is not dissipated in time, the internal temperature of the gear box will rise, the viscosity of lubricating oil will decrease, the lubrication performance will deteriorate, the wear of gears and bearings will be accelerated, and the service life of the gear box will be reduced. In addition, when the power tool turret Y-axis is lifted, the screw rod will be heated and elongated, which will reduce the repeat positioning accuracy and reverse positioning accuracy of the screw rod transmission and further increase the manufacturing error of workpieces. SUMMARY

[0004] This section is intended to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above or existing problems in the prior art, the present application is proposed.

[0006] To solve the above technical problems, the present application provides the following technical solutions: including,

[0007] The shell is fixedly connected with a Y-axis support bracket, a lifting assembly is fixed on the Y-axis support bracket, a locking assembly is arranged in the lifting assembly, a power assembly is arranged outside the lifting assembly, and the locking assembly is connected with the power assembly.

[0008] The lifting assembly comprises a Y-axis limiting rod fixedly connected to the bottom end of the Y-axis support bracket, a Y-axis limiting plate slidably connected to the outer surface of the Y-axis limiting rod, a tool turret box fixedly connected to the end of the Y-axis limiting plate away from the Y-axis limiting rod, a connecting block fixedly connected to the side edge of the tool turret box, a lead screw rotatably connected to the position of the connecting block inside the shell, a wedge-shaped bearing seat fixedly connected to the two ends of the lead screw, a stop block fixedly connected to the positions of the shell on the two sides of the wedge-shaped bearing seat, a wedge-shaped block arranged between the two stop blocks and the two sides of the wedge-shaped bearing seat, and an elastic member arranged between the two wedge-shaped blocks and the two stop blocks.

[0009] The tool turret box is arranged inside the shell, the connecting block is threadedly connected with the lead screw, the wedge-shaped bearing seat is connected between the nut and the shell, the two ends of the elastic member are fixedly connected to the sides opposite to the wedge-shaped block and the stop block, the end of the lead screw is fixedly connected with a Y-axis servo motor, and the Y-axis servo motor is fixedly connected with the shell.

[0010] The power assembly comprises a power servo motor fixedly connected to the side of the tool turret box away from the connecting block, a synchronous pulley one fixedly connected to the driving end of the servo motor, a synchronous belt sleeved on the outer surface of the synchronous pulley one, a synchronous pulley two provided at the end of the synchronous belt away from the synchronous pulley one, an output shaft fixedly connected to the end of the synchronous pulley two, a power tool seat inserted into one end of the output shaft, and a support seat rotatably connected to the other end of the output shaft and penetrating through the synchronous pulley two.

[0011] The power is transmitted between the synchronous pulley one and the synchronous pulley two through the synchronous belt, and the support seat is fixedly connected with the inner wall of the tool turret box.

[0012] As a preferred scheme of the power tool turret of the synchronous belt power transmission, the locking assembly comprises a fixed end tooth disc fixedly connected to the end of the tool turret box away from the Y-axis limiting plate, a dividing end tooth disc rotatably connected to the inner wall of the fixed end tooth disc, a cutter disc connected to the end of the dividing end tooth disc through a screw or a pin, and a piston end tooth disc jointly meshed with the dividing end tooth disc and the fixed end tooth disc.

[0013] As a preferred scheme of the power tool turret of the synchronous belt power transmission, the piston end tooth disc is fixedly connected to a hydraulic oil cylinder at the end away from the dividing end tooth disc and the fixed end tooth disc, and the dividing end tooth disc is fixedly connected to a dividing servo motor at the end away from the cutter disc.

[0014] The power tool turret driven by the synchronous belt has the advantages that the lifting assembly is fixed at both ends and can be pre-stretched to prevent the lifting assembly from elongating due to temperature rise during use, so that the repeat positioning accuracy and reverse positioning accuracy of the screw drive are improved, the locking assembly and the power assembly are superior to the conventional power tool turret in that the gear box has low transmission efficiency, large transmission temperature rise and large noise, the transmission gear number is changed to increase the output power, high-speed and high-precision machining performance are achieved, and the machining precision of parts and the assembly difficulty of finished products are greatly reduced, so that the production efficiency and production quality of products are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a front view of the overall structure of the power tool turret driven by the synchronous belt.

[0017] Figure 2 It is a schematic view of the lifting assembly structure in the power tool turret driven by the synchronous belt.

[0018] Figure 3 It is a schematic view of the locking assembly structure in the power tool turret driven by the synchronous belt.

[0019] Figure 4 It is a side view of the overall structure of the power tool turret driven by the synchronous belt.

[0020] Figure 5 It is a schematic view of the power assembly structure in the power tool turret driven by the synchronous belt.

[0021] In the figure: 100, housing; 101, Y-axis support bracket;

[0022] 200, lifting assembly; 201, Y-axis limiting rod; 202, Y-axis limiting plate; 203, tool turret box; 204, connecting block; 205, lead screw; 206, wedge-shaped bearing seat; 207, stop block; 208, wedge-shaped block; 209, elastic member; 210, Y-axis servo motor;

[0023] 300, locking assembly; 301, fixed end tooth disc; 302, indexing end tooth disc; 303, tool disc; 304, piston end tooth disc; 305, hydraulic oil cylinder; 306, indexing servo motor;

[0024] 400, power assembly; 401, power servo motor; 402, synchronous wheel one; 403, synchronous belt; 404, synchronous wheel two; 405, output shaft; 406, power tool holder; 407, support seat. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0026] Example 1, refer to Figures 1-5 For the first embodiment of the present application, the embodiment provides a Y-axis power tool turret driven by a synchronous belt 403, which comprises a shell 100, a Y-axis support bracket 101 fixedly connected to the shell 100, a lifting assembly 200 fixed to the Y-axis support bracket 101, a locking assembly 300 arranged in the lifting assembly 200, a power assembly 400 arranged outside the lifting assembly 200, the locking assembly 300 being connected to the power assembly 400, the lifting assembly 200 adopting a fixed support at both ends, which can be pre-stretched to prevent the lifting assembly 200 from elongating due to temperature rise during use, thereby improving the repeatability and reverse positioning accuracy of the lead screw 205 transmission. Compared with the traditional power tool turret, the locking assembly 300 and the power assembly 400 optimize the defects of low transmission efficiency, large transmission temperature rise and large noise of the gear box, change the number of teeth to increase the output power, realize high-speed and high-precision machining performance, and greatly reduce the machining precision of parts and the assembly difficulty of finished products, thereby improving the production efficiency and production quality of the product.

[0027] The lifting assembly 200 comprises a Y-axis limiting rod 201 fixedly connected to the bottom end of the Y-axis support bracket 101, a Y-axis limiting plate 202 slidably connected to the outer surface of the Y-axis limiting rod 201, a tool turret box 203 fixedly connected to the end of the Y-axis limiting plate 202 away from the Y-axis limiting rod 201, a connecting block 204 fixedly connected to the side of the tool turret box 203, a lead screw 205 rotatably connected to the inside of the shell 100 at the position of the connecting block 204, a wedge-shaped bearing seat 206 fixedly connected to both ends of the lead screw 205, a stop block 207 fixedly connected to both sides of the shell 100 at the position of the wedge-shaped bearing seat 206, a wedge-shaped block 208 arranged between the two stop blocks 207 and the two sides of the wedge-shaped bearing seat 206, and an elastic member 209 arranged between the two wedge-shaped blocks 208 and the two stop blocks 207.

[0028] Specifically, the tool turret box 203 is arranged inside the shell 100, the connecting block 204 is threadedly connected with the lead screw 205, the wedge-shaped bearing seat 206 is connected between the shell 100 and the nut, the two ends of the elastic member 209 are fixedly connected with the wedge-shaped block 208 and the side opposite to the stop block 207 respectively, the end of the lead screw 205 is fixedly connected with the Y-axis servo motor 210, the Y-axis servo motor 210 is fixedly connected with the shell 100, the Y-axis lead screw 205 adopts the two-end fixed support mode, so as to realize the pre-stretching of the lead screw 205, so as to improve the machining precision, and the elastic member 209 and the wedge-shaped block 208 are used to transfer part of the force of the wedge-shaped bearing Y-axis load to the X-axis load, so as to reduce the load of the wedge-shaped bearing Y-axis and prolong the service life of the wedge-shaped bearing.

[0029] Further, the locking assembly 300 comprises a fixed end tooth disc 301 fixedly connected to one end of the tool turret box 203 away from the Y-axis limiting plate 202, a dividing end tooth disc 302 is rotatably connected to the inner wall of the fixed end tooth disc 301, a tool disc 303 is connected to the end of the dividing end tooth disc 302 through a screw or a pin, and a piston end tooth disc 304 is jointly meshed and connected with the dividing end tooth disc 302 and the fixed end tooth disc 301.

[0030] Further, the piston end tooth disc 304 is fixedly connected to the hydraulic oil cylinder 305 away from the dividing end tooth disc 302 and the fixed end tooth disc 301, and the dividing end tooth disc 302 is fixedly connected to the dividing servo motor 306 away from the tool disc 303.

[0031] Further, the power assembly 400 comprises a power servo motor 401 fixedly connected to one side of the tool turret box 203 away from the connecting block 204, a synchronous pulley one 402 is fixedly connected to the driving end of the servo motor, a synchronous belt 403 is sleeved on the outer surface of the synchronous pulley one 402, a synchronous pulley two 404 is arranged on one end of the synchronous belt 403 away from the synchronous pulley one 402, an output shaft 405 is fixedly connected to the end of the synchronous pulley two 404, a power tool seat 406 is inserted into one end of the output shaft 405, and a support seat 407 is rotatably connected to the other end of the output shaft 405 and penetrates through the synchronous pulley two 404.

[0032] Further, power is transmitted between the synchronous pulley one 402 and the synchronous pulley two 404 through the synchronous belt 403, and the support seat 407 is fixedly connected with the inner wall of the tool turret box 203.

[0033] In use, when the machine tool receives a tool changing instruction, the hydraulic cylinder 305 drives the piston end gear plate 304 to move, at which time the piston end gear plate 304 will be separated from the fixed end gear plate 301 and the indexing end gear plate 302, and disengaged from each other, so that the tool holder 303 at this time is in a rotatable state, then the indexing motor is started to drive the indexing end gear plate 302 to rotate, thereby driving the indexing end gear plate 302 and the tool holder 303 to rotate together, and the tool holder 303 is turned to the specified tool position, and then the hydraulic cylinder 305 drives the end to retract to drive the piston end gear plate 304 to reset, at which time the piston end gear plate 304 will re-engage with the fixed end gear plate 301 and the indexing end gear plate 302, achieving locking of the tool holder 303, thereby ensuring that the tool holder 303 can remain stable during cutting;

[0034] After the tool holder 303 switches the specified tool position and is pressed, the power servo motor 401 is started to drive the synchronous pulley two 404 to rotate through the synchronous pulley one 402 and the synchronous belt 403 (the synchronous pulley can be designed to have a speed ratio of 1:1 / 2:1 / 3:1, etc., to achieve high-speed output of the power tool turret), and in the process of rotating the synchronous pulley two 404, the output shaft 405 will be rotated, and since the flat position slot of the output shaft 405 is inserted with the flat position of the power tool seat 406, the power tool seat 406 will rotate in the process of rotating the output shaft 405. Compared with the traditional power tool turret, the synchronous pulley and the synchronous belt 403 structure replaces the traditional gear box transmission; the low transmission efficiency, high transmission temperature rise, and large noise of the gear box transmission are optimized, the number of teeth of the transmission synchronous pulley is changed to increase the output power, and high-speed and high-precision machining performance is achieved.

[0035] When the power tool turret needs to be raised and lowered along the Y-axis, the Y-axis servo motor 210 is started to control the screw 205 to rotate, so that the tool turret box 203 will move up and down along the outer surface of the Y-axis limiting rod 201 under the action of the connecting block 204 and the Y-axis limiting plate 202. The screw 205 uses a fixed support at both ends, which can pre-stretch the screw 205, so as to prevent the screw 205 from elongating due to temperature rise during use, thereby affecting the transmission precision of the screw 205. In addition, when the wedge-shaped bearing seat 206 is installed, the wedge-shaped bearing seat 206 will also abut against the wedge-shaped blocks 208 on both sides, so that the wedge-shaped blocks 208 on both sides will move towards the direction of the stop block 207, and will also extrude the elastic member 209. In this way, the elastic member 209 and the wedge-shaped blocks 208 can convert part of the Y-axis load of the wedge-shaped bearing seat 206 into X-axis load, thereby achieving the purpose of reducing the Y-axis load of the wedge-shaped bearing seat 206.

[0036] In summary, the lifting assembly 200 adopts the support mode of fixed at both ends, can be pre-stretched, prevent the lifting assembly 200 from elongating due to temperature rise in the use process, so as to improve the repeat positioning accuracy and reverse positioning accuracy of the lead screw 205 transmission, compared with the traditional power knife tower, the locking assembly 300 and the power assembly 400 optimize the defects of low transmission efficiency of the gear box, large transmission temperature rise and large noise, change the number of teeth of the transmission, speed up the output power, realize high speed and high precision machining performance, in addition, greatly reduce the machining precision of parts and assembly difficulty of finished products, thereby improving the production efficiency and production quality of products.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A power turret with synchronous belt drive power transmission, characterized in that: The utility model relates to a kind of cutting machine, including, The lifting assembly (200) includes the Y-axis limiting rod (201) fixedly connected at the bottom of the Y-axis support bracket (101), the outer surface of the Y-axis limiting rod (201) is slidably connected with the Y-axis limiting plate (202), the end of the Y-axis limiting plate (202) away from the Y-axis limiting rod (201) is fixedly connected with the turret box (203), the side of the turret box (203) is fixedly connected with the connecting block (204), the inside of the shell (100) is rotatably connected with the lead screw (205) at the position of the connecting block (204), the both ends of the lead screw (205) are fixedly connected with the wedge-shaped bearing seat (206), the shell (100) is fixedly connected with the stop block (207) at the position of the both sides of the wedge-shaped bearing seat (206), the wedge-shaped block (208) is arranged between the both sides of the wedge-shaped bearing seat (206) and the two stop blocks (207), and the elastic member (209) is arranged between the two wedge-shaped blocks (208) and the two stop blocks (207). The turret box (203) is arranged in the inside of the shell (100), the connecting block (204) is threadedly connected between the turret box (203) and the lead screw (205), the wedge-shaped bearing seat (206) is connected between the nut and the shell (100), the both ends of the elastic member (209) are fixedly connected with the side opposite to the wedge-shaped block (208) and the stop block (207), respectively, and the end of the lead screw (205) is fixedly connected with the Y-axis servo motor (210). The power assembly (400) includes the power servo motor (401) fixedly connected on the side of the turret box (203) away from the connecting block (204), the driving end of the power servo motor (401) is fixedly connected with the synchronous pulley one (402), the outer surface of the synchronous pulley one (402) is sleeved with the synchronous belt (403), the end of the synchronous belt (403) away from the synchronous pulley one (402) is provided with the synchronous pulley two (404), the end of the synchronous pulley two (404) is fixedly connected with the output shaft (405), the one end of the output shaft (405) is inserted with the power tool seat (406), and the other end of the output shaft (405) is rotatably connected with the support seat (407) penetrating through the synchronous pulley two (404). The power is transmitted between the synchronous pulley one (402) and the synchronous pulley two (404) through the synchronous belt (403), and the support seat (407) is fixedly connected with the inner wall of the turret box (203). ​ 2. The power tool tower with synchronous belt drive according to claim 1, characterized in that: The locking assembly (300) comprises a fixed end tooth disc (301) fixedly connected to one end of the tool tower box (203) away from the Y-axis limiting plate (202), a dividing end tooth disc (302) rotatably connected to the inner wall of the fixed end tooth disc (301), and a tool disc (303) connected to the end of the dividing end tooth disc (302) through a screw or a pin, wherein the dividing end tooth disc (302) and the fixed end tooth disc (301) are jointly connected with a piston end tooth disc (304).

3. The power tool tower with synchronous belt drive according to claim 2, characterized in that: The piston end tooth disc (304) is fixedly connected with a hydraulic oil cylinder (305) at one end away from the dividing end tooth disc (302) and the fixed end tooth disc (301), and the dividing end tooth disc (302) is fixedly connected with a dividing servo motor (306) at one end away from the tool disc (303).

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