Four-axis large cold saw grooving machine tool

Abstract

The utility model discloses a four-axis large cold saw grooving machine tool which comprises a bare machine assembly, a sawing vertical and horizontal spindle box assembly and a rotary table assembly, and the sawing vertical and horizontal spindle box assembly is connected with a stand column in the bare machine assembly through a linear guide rail pair. The rotary table assembly is fixed to a workbench of the light machine assembly. The sawing vertical and horizontal spindle box assembly comprises a vertical and horizontal spindle box body and a horizontal spindle box body, a spindle motor in the vertical and horizontal spindle box body is connected with the straight spindle through an arranged coupler, the horizontal spindle box body is located at the lower end of one side of the vertical and horizontal spindle box body, and a sawing spindle motor is arranged at the upper end of the vertical and horizontal spindle box body. A saw cutting spindle is arranged in the horizontal spindle box body, the saw cutting spindle and the horizontal spindle box body are connected through a synchronous belt, power of a main motor is transmitted to a spindle belt wheel through speed reduction of the synchronous belt to drive the saw cutting spindle to rotate, and a high-speed cold cutting saw blade is driven to conduct grooving machining. The grooving machine is provided with the large-diameter high-speed cooling saw blade and the saw blade supporting structure, the supporting rigidity is good, and the grooving machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting machine tools and processing, in particular to a four-axis large-scale cold sawing slotting machine tool. Background Art

[0002] The movable tooth frame is a key component of the movable tooth reducer. The movable tooth frame is composed of evenly distributed straight end teeth. At present, the main processing of the end teeth is processed by end mills or saw blade milling cutters. Because the end tooth straight groove has a small width and a large depth, the tool diameter used is small, the spindle system and the tool system are not rigid enough, the feed speed is slow, and the processing efficiency is not high, it is not suitable for batch processing of such parts. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model discloses a four-axis large-scale cold saw slotting machine tool to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-axis large cold saw slotting machine tool, comprising an optical-mechanical assembly, a sawing vertical and horizontal spindle box assembly and a turntable assembly, wherein the sawing vertical and horizontal spindle box assembly is connected to the column in the optical-mechanical assembly through a linear guide pair and driven by a motor lead screw to achieve up and down feeding; the turntable assembly is fixed on the workbench of the optical-mechanical assembly, and the turntable assembly is used for expansion processing to achieve circumferential groove indexing processing;

[0005] The sawing vertical and horizontal spindle box assembly includes a vertical and horizontal spindle box body and a horizontal spindle box body. A straight spindle is vertically arranged inside the vertical and horizontal spindle box body. A spindle motor is arranged on the upper end of the straight spindle. The spindle motor and the straight spindle are connected by a coupling. The configuration of the vertical axis expands the processing range of the machine tool. The horizontal spindle box body is located at the lower end of one side of the vertical and horizontal spindle box body and is fixed to the vertical and horizontal spindle box with screws. A sawing spindle motor is arranged on the upper end of the vertical and horizontal spindle box body. A motor fixing bracket is installed on the upper end of the vertical and horizontal spindle box body with screws. A motor mounting plate is arranged on the upper end of the motor fixing bracket. The sawing spindle motor is mounted on the motor mounting plate, a sawing spindle is provided inside the horizontal spindle housing, the sawing spindle rotates inside the horizontal spindle housing, a high-speed cold cutting saw blade is provided at one end of the sawing spindle, a spindle pulley is provided at the other end of the sawing spindle, a key connection is used to transmit power, a main motor pulley is provided at the output end of the sawing spindle motor, the main motor pulley is located at the upper end of the spindle pulley, and the two are connected by a synchronous belt, and the main motor power is transmitted to the spindle pulley through the synchronous belt deceleration to drive the sawing spindle to rotate, thereby driving the high-speed cold cutting saw blade at the front end to perform grooving processing.

[0006] Preferably, the sawing spindle is rotatably connected to the horizontal spindle box via tapered roller bearings provided at both ends.

[0007] Preferably, the outer ends of the tapered roller bearings are respectively provided with bearing glands, and the sawing spindle is sealed by the bearing glands.

[0008] Preferably, the high-speed cold-cutting saw blade is fixed on the sawing spindle via a pressure plate.

[0009] Preferably, a saw blade support system is provided in the lower half area of ​​the high-speed cold cutting saw blade, and the saw blade support system includes a saw blade front support, a supporting nylon block and a saw blade rear support. The saw blade rear support is fixedly mounted on the lower end wall of the horizontal spindle box by means of provided screws, and the saw blade front support and the saw blade rear support are connected on both sides by means of provided screws, and the supporting nylon blocks are respectively located on the inner wall surfaces of the saw blade front support and the saw blade rear support, and the lower half area of ​​the high-speed cold cutting saw blade is located between the supporting nylon blocks on both sides. The saw blade support system increases the support rigidity of the sawing part, and reduces the deflection of the high-speed cold cutting saw blade during the cutting process.

[0010] Preferably, a belt tensioning block is provided on the motor mounting plate, and the tension of the synchronous belt is adjusted by the belt tensioning block.

[0011] Preferably, the main motor pulley is fixed to the sawing spindle motor by using an expansion sleeve structure.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, a high-speed vertical and horizontal sawing spindle box assembly is configured on a conventional machining center, a large-diameter high-speed cold saw is used for grooving, and a saw blade support structure is provided to improve its rigidity, thereby achieving high-speed and powerful cutting and high machining efficiency.

[0014] 2. In the utility model, a large-diameter high-speed cooling saw blade and a saw blade supporting structure are configured, and the supporting rigidity is good, which is suitable for high-speed and efficient grooving processing.

[0015] 3. In the utility model, a vertical spindle and a CNC turntable are configured to expand the processing range and realize indexing processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached picture:

[0018] Figure 1 This is the axonometric drawing of the utility model's four-axis large cold saw slotting machine tool;

[0019] Figure 2This is a front view of the sawing vertical and horizontal spindle box assembly of the utility model;

[0020] Figure 3 It is a vertical axis sectional view of the utility model;

[0021] Figure 4 This is a sectional view of the sawing spindle of the utility model;

[0022] Numbers in the figure: 1. Optical and mechanical assembly; 2. Sawing vertical and horizontal spindle box assembly; 201. Vertical and horizontal spindle box; 202. Spindle motor; 203. Coupling; 204. Direct-connected spindle; 205. Horizontal spindle box; 206. Sawing spindle; 207. Tapered roller bearing; 208. Spindle pulley; 209. Synchronous belt; 210. Main motor pulley; 211. Motor mounting plate; 212. Belt tensioner; 213. Sawing spindle motor; 214. Motor fixing bracket; 215. Bearing cover; 216. High-speed cold-cutting saw blade; 217. Pressure plate; 218. Saw blade rear support; 219. Support nylon block; 220. Saw blade front support; 3. Turntable assembly. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Example: Figure 1-Figure 4 As shown, a four-axis large cold saw slotting machine tool includes an optical machine component 1, a sawing vertical and horizontal spindle box component 2 and a turntable component 3. The sawing vertical and horizontal spindle box component 2 is connected to the column in the optical machine component 1 through a linear guide pair, and is driven by a motor lead screw to achieve up and down feeding; the turntable component 3 is fixed on the workbench of the optical machine component 1, and the turntable component 3 is used for expansion processing to achieve circumferential groove indexing processing;

[0025] The sawing vertical and horizontal spindle box assembly 2 includes a vertical and horizontal spindle box body 201 and a horizontal spindle box body 205. Inside the vertical and horizontal spindle box body 201, a direct-coupled spindle 204 is vertically arranged. At the upper end of the direct-coupled spindle 204, a spindle motor 202 is provided. The spindle motor 202 is connected to the direct-coupled spindle 204 through a coupling 203 provided. The configuration of the vertical spindle expands the machining range of the machine tool. The horizontal spindle box body 205 is located at the lower end of one side of the vertical and horizontal spindle box body 201 and is fixed to the vertical and horizontal spindle box by screws. At the upper end of the vertical and horizontal spindle box body 201, a sawing spindle motor 213 is provided. At the upper end of the vertical and horizontal spindle box body 201, a motor fixing bracket 214 is installed by screws. At the upper end of the motor fixing bracket 214, a motor mounting plate 211 is provided. The sawing spindle motor 213 is installed on the motor mounting plate 211. On the motor mounting plate 211, a belt tensioning block 212 is provided. The synchronous belt 209 is tensioned and adjusted through the belt tensioning block 212. The main motor pulley 210 is fixed to the sawing spindle motor 213 by an expansion sleeve structure. Inside the horizontal spindle box body 205, a sawing spindle 206 is provided. The sawing spindle 206 rotates inside the horizontal spindle box body 205. The sawing spindle 206 is rotationally connected to the horizontal spindle box through tapered roller bearings 207 provided at both ends. Bearing caps 215 are respectively provided at the outer ends of the tapered roller bearings 207. The sawing spindle 206 is sealed through the bearing caps 215. At one end of the sawing spindle 206, a high-speed cold cutting saw blade 216 is provided. The high-speed cold cutting saw blade 216 is fixed to the sawing spindle 206 through a pressure plate 217 provided. At the other end of the sawing spindle 206, a spindle pulley 208 is provided. The power is transmitted through key connection. At the output end of the sawing spindle motor 213, a main motor pulley 210 is provided. The main motor pulley 210 is located above the spindle pulley 208, and the two are connected through a synchronous belt 209 provided. The power of the main motor is transmitted to the spindle pulley 208 through the synchronous belt 209 to drive the sawing spindle 206 to rotate, and then drive the high-speed cold cutting saw blade 216 at the front end to perform grooving processing.

[0026] Among them, a saw blade support system is provided in the lower half area of the high-speed cold cutting saw blade 216. The saw blade support system includes a front saw blade support 220, a support nylon block 219, and a rear saw blade support 218. The rear saw blade support 218 is fixedly installed on the lower end wall surface of the horizontal spindle box body 205 through screws provided. The front saw blade support 220 and the rear saw blade support 218 are connected on both sides through screws provided. The support nylon blocks 219 are respectively located on the inner side walls of the front saw blade support 220 and the rear saw blade support 218. The lower half area of the high-speed cold cutting saw blade 216 is located between the support nylon blocks 219 on both sides. The support rigidity of the sawing part is increased through the saw blade support system, and the yaw of the high-speed cold cutting saw blade 216 during the cutting process is reduced.

[0027] Working principle:

[0028] Initial setup: Fix the optical machine assembly 1 in the appropriate position and ensure that the column and the workbench are stable. Connect the sawing vertical and horizontal spindle box assembly 2 to the column in the optical machine assembly 1 through a linear guide pair. Fix the workpiece to be processed on the turntable assembly 3 and adjust the position of the turntable assembly 3 on the workbench.

[0029] Processing operation: start the spindle motor 202 and the sawing spindle motor 213, and transmit power through the synchronous belt 209 to rotate the sawing spindle 206; the sawing spindle 206 drives the high-speed cold cutting saw blade 216 to perform efficient processing of grooving procedures; use the turntable assembly 3 to perform circumferential groove indexing processing to expand the processing range.

[0030] Up and down feeding: The sawing vertical and horizontal spindle box assembly 2 is driven by the motor screw to achieve up and down feeding and adjust the sawing depth.

[0031] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A four-axis large cold saw slotting machine tool, characterized in that: It includes an optical-mechanical assembly, a sawing vertical and horizontal spindle box assembly and a turntable assembly. The sawing vertical and horizontal spindle box assembly is connected to the column in the optical-mechanical assembly through a linear guide pair and driven by a motor lead screw to achieve up and down feeding; the turntable assembly is fixed on the workbench of the optical-mechanical assembly, and the turntable assembly is used for expansion processing to achieve circumferential groove indexing processing; The sawing vertical and horizontal spindle box assembly includes a vertical and horizontal spindle box body and a horizontal spindle box body, a straight spindle is vertically arranged inside the vertical and horizontal spindle box body, a spindle motor is arranged on the upper end of the straight spindle, the spindle motor is connected to the straight spindle through a coupling, the horizontal spindle box body is located at the lower end of one side of the vertical and horizontal spindle box body, and is fixed to the vertical and horizontal spindle box by screws, a sawing spindle motor is arranged on the upper end of the vertical and horizontal spindle box body, a motor fixing bracket is installed on the upper end of the vertical and horizontal spindle box body by screws, a motor mounting plate is arranged on the upper end of the motor fixing bracket, the The sawing spindle motor is installed on the motor mounting plate, and a sawing spindle is provided inside the horizontal spindle housing. The sawing spindle rotates inside the horizontal spindle housing. A high-speed cold cutting saw blade is provided at one end of the sawing spindle, and a spindle pulley is provided at the other end of the sawing spindle. A main motor pulley is provided at the output end of the sawing spindle motor, and the main motor pulley is located at the upper end of the spindle pulley, and the two are connected by a synchronous belt. The main motor power is transmitted to the spindle pulley through the synchronous belt deceleration to drive the sawing spindle to rotate, thereby driving the high-speed cold cutting saw blade at the front end to perform grooving processing.

2. A four-axis large cold saw slotting machine tool according to claim 1, characterized in that: The sawing spindle is rotatably connected to the horizontal spindle box through tapered roller bearings provided at both ends.

3. A four-axis large cold saw slotting machine tool according to claim 2, characterized in that: The outer ends of the tapered roller bearings are respectively provided with bearing glands, and the sawing spindle is sealed by the bearing glands.

4. A four-axis large cold saw slotting machine tool according to claim 1, characterized in that: The high-speed cold-cutting saw blade is fixed on the sawing spindle via a pressure plate.

5. The four-axis large cold saw slotting machine tool according to claim 1, characterized in that: A saw blade support system is provided in the lower half of the high-speed cold cutting saw blade, and the saw blade support system includes a saw blade front support, a supporting nylon block and a saw blade rear support. The saw blade rear support is fixedly mounted on the lower end wall of the horizontal spindle box by means of provided screws, and the saw blade front support and the saw blade rear support are connected on both sides by means of provided screws. The supporting nylon blocks are respectively located on the inner side walls of the saw blade front support and the saw blade rear support, and the lower half of the high-speed cold cutting saw blade is located between the supporting nylon blocks on both sides.

6. A four-axis large cold saw slotting machine tool according to claim 1, characterized in that: The motor mounting plate is provided with a belt tensioning block, through which the tension of the synchronous belt is adjusted.

7. A four-axis large cold saw slotting machine tool according to claim 1, characterized in that: The main motor pulley is fixed to the sawing spindle motor by adopting an expansion sleeve structure.

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