Grinding wheel and hob switching mechanism based on gear turning, hobbing and grinding composite machine tool

Abstract

The utility model relates to the technical field of processing machine tools, in particular to a grinding wheel and hob switching mechanism based on a gear turning, hobbing and grinding composite machine tool, which comprises a machine tool, a processing mechanism is arranged on the machine tool and used for processing gears, and the processing mechanism comprises a driving component, a driving component, a hobbing component and a gear grinding component, and the driving component is arranged on the machine tool and used for controlling the processing position and angle; the mounting seat is fixed on the driving assembly, and the shaft bracket is fixed at the front end of the mounting seat; the barrel is mounted between the mounting base and the shaft frame, the sliding barrel is mounted in the barrel in a sliding mode, the movable shaft barrel is rotatably mounted at the upper end of the sliding barrel, the knob rod is fixed to the lower end of the sliding barrel, the protruding block is fixed to the outer wall of the sliding barrel, the spring is mounted on the outer wall of the lower end of the movable shaft barrel in a sleeving mode, and the limiting component is arranged on the barrel and used for limiting the protruding block. The hob is mounted at the upper end of the movable shaft barrel; the hob and the grinding wheel can be installed together through the installation assembly, positioning is stable, and disassembly and installation are convenient and fast during replacement.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing machine tool technical field, concretely is a kind of abrasive wheel and hob switching mechanism based on gear hobbing and grinding composite machine tool. BACKGROUND

[0002] Gear hobbing and grinding composite machine tool is a kind of high-performance machining equipment, integrates turning, hobbing and grinding and multiple processing functions, so that the production of precision parts such as gear, spline is more efficient and reliable. Gear hobbing and grinding composite machine tool has become an indispensable important tool in modern manufacturing industry, widely used in automobile, aerospace, precision machinery and other fields, promotes the rapid development of manufacturing industry;

[0003] According to the check Publication No. CN208391028U, a kind of convenient installation's numerical control hobbing machine's hobbing spindle mechanism is disclosed, this technology discloses "a kind of convenient installation's numerical control hobbing machine's hobbing spindle mechanism, including lathe, fixedly installed with rack on lathe, rack is fixedly installed with driving motor, the output end of driving motor is connected with rotating shaft through shaft coupling, the outside of rotating shaft is sleeved with hollow roller, the roller is connected with tooth on the axle wall, the inside wall of roller is symmetrically provided with fixed slot, the groove bottom of fixed slot is fixedly connected with spring, the other end of spring is fixedly connected with fixed pin, the axle wall of rotating shaft is correspondingly provided with fixed hole with two fixed pins, the end of fixed pin away from spring passes through fixed slot mouth and extends into fixed hole, the groove bottom of fixed slot is provided with through-hole, the end of fixed pin close to spring is fixedly connected with pull rope, the other end of pull rope passes through through-hole and extends to the outside of roller" and other technical schemes, with "simple structure, convenient operation, the rolling shaft and rotating shaft are fixedly installed and replaced with the technical effect of convenient and fast";

[0004] Most of today's gear processing machine tools have turning, hobbing and grinding and other multiple processing capabilities, however, the above-mentioned scheme machine tool design only optimizes the convenient replacement of hobbing cutter, but ignores the importance of flexible replacement of abrasive wheel. This limitation in design not only limits the processing application range and flexibility of the machine tool, but also increases the additional processing cost and maintenance burden due to the inability to replace the worn abrasive wheel in time. In order to improve processing efficiency and reduce overall cost. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of abrasive wheel and hob switching mechanism based on gear hobbing and grinding composite machine tool, with hobbing cutter and abrasive wheel can be installed by installation assembly, and positioning is stable, and when replacing, disassembly and installation are also convenient and fast.

[0006] In order to achieve the above object, the utility model discloses a grinding wheel and hob switching mechanism based on gear hobbing and grinding compound machine tool, including machine tool, be provided with processing mechanism on machine tool and be used for processing gear, processing mechanism includes:

[0007] Driving assembly is arranged on the machine tool and is used for controlling the processing position and angle.

[0008] Fixed assembly, the mounting seat fixed on the driving assembly, the shaft support fixed on the front end of the mounting seat,

[0009] Mounting assembly, the cylinder between the mounting seat and the shaft support, the sliding cylinder inside the cylinder, the movable shaft cylinder rotationally installed on the upper end of the sliding cylinder, the knob lever fixed on the lower end of the sliding cylinder, the protrusion fixed on the outer wall of the sliding cylinder, the spring installed on the outer wall of the lower end of the movable shaft cylinder, the limiting part opened on the cylinder and used for limiting the protrusion, the hob installed on the upper end of the movable shaft cylinder, the grinding wheel installed on the upper end of the hob.

[0010] Preferably, the limiting part includes a sliding groove and a positioning groove opened on the cylinder, and the positioning groove is located on the upper end of the sliding groove and communicates with it.

[0011] Preferably, the processing mechanism further comprises shaft heads fixed on the upper and lower ends of the hob, and the lower end of the hob is connected with the movable shaft cylinder through the shaft head, and the positioning shaft cylinder is fixed on the upper and lower ends of the grinding wheel, and the lower end of the grinding wheel is connected with the shaft head on the upper end of the hob through the positioning shaft cylinder.

[0012] Preferably, the driving assembly further comprises a stand fixed on one side of the top of the machine tool, a rotary table installed on the upper end of the stand, a linear guide rail installed on the rotary table, a motor installed on the linear guide rail slider, and the upper end of the grinding wheel is connected with the output end of the motor through the positioning shaft cylinder.

[0013] Preferably, the driving assembly further comprises a plurality of mounting holes opened on the linear guide rail base, and the mounting seat is fixed on the linear guide rail base through the mounting hole and the bolt.

[0014] Preferably, the fixed assembly further comprises a screw rod hinged on both ends of the mounting seat, a nut threadedly installed on the screw rod, and a groove opened on both ends of the shaft support.

[0015] Beneficial effects

[0016] The utility model provides a grinding wheel and hob switching mechanism based on gear hobbing and grinding compound machine tool, which has the following beneficial effects compared with the prior art:

[0017] (1) When the hob and the grinding wheel need to be disassembled, the slide cylinder is driven to rotate by rotating the knob lever clockwise, the slide cylinder drives the protruding block to slide from the positioning groove to the sliding groove, and the movable shaft cylinder is pushed to move downward by the pressure of spring rebound, the movable shaft cylinder drives the protruding block to slide to the lowermost end of the sliding groove, at the same time, the slide cylinder also drives the movable shaft cylinder to shrink downward into the cylinder body, so that the positioning of the lower end of the hob is released, the hob and the grinding wheel can be disassembled and replaced in turn, and the hob and the grinding wheel are convenient and fast to disassemble when being replaced.

[0018] (2) When the hob and the grinding wheel need to be installed, the grinding wheel is inserted and installed with the motor output end, then the hob is inserted and installed with the grinding wheel, the movable shaft cylinder on the slide cylinder is pushed to move upward, and the protruding block is also driven to slide upward along the sliding groove in the upward movement of the slide cylinder, when the protruding block slides to the uppermost end of the sliding groove, the movable shaft cylinder is just inserted and installed with the lower end of the hob, then the slide cylinder is driven to rotate by rotating the knob lever counterclockwise, the slide cylinder drives the protruding block to slide from the sliding groove to the positioning groove, and the slide cylinder is pushed by the pressure of spring rebound, so that the protruding block on the slide cylinder is pressed in the positioning groove, the hob and the grinding wheel can be installed together through the mounting assembly, the positioning is stable, and the installation is also convenient and fast when being replaced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0020] Figure 2 It is a structure schematic view of the machining mechanism in the utility model;

[0021] Figure 3 It is a split view of the machining mechanism part in the utility model;

[0022] Figure 4 It is a split view of the fixed assembly in the utility model;

[0023] Figure 5 It is a sectional view of the mounting assembly in the utility model.

[0024] In the drawing: 1, machine tool; 2, machining mechanism; 21, driving assembly; 211, stand; 212, rotary table; 213, linear guide rail; 214, motor; 215, mounting hole; 22, fixed assembly; 221, mounting seat; 222, screw; 223, nut; 224, shaft support; 225, groove; 23, mounting assembly; 231, cylinder body; 232, slide cylinder; 233, movable shaft cylinder; 234, knob lever; 235, protruding block; 236, spring; 237, limiting part; 2371, sliding groove; 2372, positioning groove; 24, hob; 25, grinding wheel; 26, shaft head; 27, positioning shaft cylinder. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0026] Please refer to Figure 1 - Figure 5 The utility model provides a technical scheme: a grinding wheel and hob switching mechanism based on vehicle hobbing gear grinding compound machine tool, including machine tool 1, machine tool 1 is provided with processing mechanism 2 and is used for processing gear, processing mechanism 2 includes:

[0027] Driving assembly 21 is arranged on machine tool 1 and is used for controlling processing position and angle;

[0028] Fixed assembly 22, the mounting seat 221 of fixed assembly 22 is fixed on driving assembly 21, the shaft support 224 fixed on the front end of mounting seat 221;

[0029] Mounting assembly 23, the cylinder body 231 between mounting seat 221 and shaft support 224 is installed, the sliding cylinder 232 inside the cylinder body 231 is slidably installed, the movable shaft cylinder 233 is rotatably installed on the upper end of sliding cylinder 232, the knob lever 234 is fixed on the lower end of sliding cylinder 232, the protrusion 235 is fixed on the outer wall of sliding cylinder 232, the spring 236 is installed on the lower end of movable shaft cylinder 233, the limiting part 237 is set up on the cylinder body 231 and is used for limiting the protrusion 235, the hob 24 is installed on the upper end of movable shaft cylinder 233, and the grinding wheel 25 is installed on the upper end of hob 24.

[0030] In the embodiment, when the hob 24 and the grinding wheel 25 need to be disassembled, the knob lever 234 is rotated clockwise to drive the sliding cylinder 232 to rotate, the sliding cylinder 232 drives the protrusion 235 to slide from the positioning groove 2372 to the sliding groove 2371, and the movable shaft cylinder 233 is pushed to move downward by the pressure of the spring 236 rebound, the movable shaft cylinder 233 drives the protrusion 235 to slide to the lowermost end of the sliding groove 2371, and at the same time, the sliding cylinder 232 also drives the movable shaft cylinder 233 to shrink downward into the cylinder body 231, so that the positioning of the lower end of the hob 24 is released, so that the hob 24 and the grinding wheel 25 can be disassembled and replaced in sequence, so that the hob 24 and the grinding wheel 25 are convenient and fast to disassemble when replacing.

[0031] Specifically, the limiting part 237 includes the sliding groove 2371 and the positioning groove 2372 set up on the cylinder body 231, and the positioning groove 2372 is located on the upper end of the sliding groove 2371 and communicates with the sliding groove 2371.

[0032] In this embodiment, when the hob 24 and the grinding wheel 25 need to be installed, the grinding wheel 25 is inserted and installed with the output end of the motor 214, then the hob 24 is inserted and installed with the grinding wheel 25, then the knob rod 234 is pushed to drive the movable shaft cylinder 233 on the sliding cylinder 232 to move upwards, and the sliding cylinder 232 also drives the protrusion 235 to slide upwards inside the sliding groove 2371 during the upward movement, when the protrusion 235 slides to the uppermost end inside the sliding groove 2371, the movable shaft cylinder 233 is just inserted and installed with the lower end of the hob 24, then the sliding cylinder 232 is rotated counterclockwise by rotating the knob rod 234, the sliding cylinder 232 drives the protrusion 235 to slide from the sliding groove 2371 to the positioning groove 2372, and the sliding cylinder 232 is pushed by the pressure of the spring 236 to make the protrusion 235 on the sliding cylinder 232 tightly press in the positioning groove 2372, so that the hob 24 and the grinding wheel 25 can be installed together through the installation assembly 23, and the positioning is stable, and the replacement is also convenient and fast.

[0033] Specifically, the machining mechanism 2 further comprises shaft heads 26 fixed on the upper and lower ends of the hob 24, and the lower end of the hob 24 is inserted and connected with the movable shaft cylinder 233 through the shaft head 26; and positioning shaft cylinders 27 fixed on the upper and lower ends of the grinding wheel 25, and the lower end of the grinding wheel 25 is inserted and connected with the shaft head 26 on the upper end of the hob 24 through the positioning shaft cylinder 27.

[0034] In this embodiment, after the hob 24 and the grinding wheel 25 are inserted and connected, the grinding wheel 25 and the hob 24 can be driven to rotate by the motor 214.

[0035] Specifically, the driving assembly 21 further comprises a stand 211 fixed on one side of the top of the machine tool 1, a rotary table 212 installed on the upper end of the stand 211, a linear guide rail 213 installed on the rotating disc of the rotary table 212, and a motor 214 installed on the sliding block of the linear guide rail 213, and the upper end of the grinding wheel 25 is inserted and connected with the output end of the motor 214 through the positioning shaft cylinder 27.

[0036] In this embodiment, the hob 24 and the grinding wheel 25 can be adjusted in angle by the rotary table 212, adjusted in height by the linear guide rail 213, and driven to rotate by the motor 214.

[0037] Specifically, the driving assembly 21 further comprises a plurality of mounting holes 215 opened on the base of the linear guide rail 213, and the mounting seat 221 is fixed on the base of the linear guide rail 213 through the bolt cooperation with the mounting hole 215.

[0038] In this embodiment, the fixed assembly 22 can be fixed on the mounting hole 215 at different height positions of the linear guide rail 213, so as to determine the positioning of the installation assembly 23 on the hobs 24 and the grinding wheels 25 with different lengths.

[0039] Specific, fixed components 22 also includes a screw rod 222 hinged at both ends of the mounting seat 221, the threaded nut 223 on the screw rod 222, the groove 225 is set up at both ends of the shaft bracket 224.

[0040] In this embodiment, the mounting assembly 23 can be disassembled from the fixed assembly 22, convenient for disassembling and replacing the mounting assembly 23.

[0041] The working principle and use process of the utility model: first, when the hob 24 and the grinding wheel 25 need to be disassembled, rotate the knob lever 234 clockwise to drive the sliding cylinder 232 to rotate, the sliding cylinder 232 drives the protruding block 235 to slide from the positioning groove 2372 to the sliding groove 2371, and the pressure of the spring 236 rebound pushes the movable shaft cylinder 233 to move downward, the movable shaft cylinder 233 drives the protruding block 235 to slide to the lowermost end inside the sliding groove 2371, at the same time, the sliding cylinder 232 also drives the movable shaft cylinder 233 to shrink downward into the cylinder body 231, thereby releasing the positioning of the lower end of the hob 24, so that the hob 24 and the grinding wheel 25 can be disassembled and replaced in turn, so that the hob 24 and the grinding wheel 25 are convenient and fast to disassemble when replacing;

[0042] When the hob 24 and the grinding wheel 25 need to be installed, insert the grinding wheel 25 into the output end of the motor 214, then insert the hob 24 and the grinding wheel 25 into the installation, then push the knob lever 234 to drive the movable shaft cylinder 233 on the sliding cylinder 232 to move upward, and in the process of moving upward, the sliding cylinder 232 also drives the protruding block 235 to slide upward along the sliding groove 2371, when the protruding block 235 slides to the uppermost end inside the sliding groove 2371, the movable shaft cylinder 233 is just inserted into the lower end of the hob 24, then rotate the knob lever 234 counterclockwise to drive the sliding cylinder 232 to rotate, the sliding cylinder 232 drives the protruding block 235 to slide from the sliding groove 2371 to the positioning groove 2372, and the pressure of the spring 236 rebound pushes the sliding cylinder 232, so that the protruding block 235 on the sliding cylinder 232 is pressed in the positioning groove 2372, so that the hob 24 and the grinding wheel 25 can be installed together through the mounting assembly 23, and the positioning is stable, and the installation is also convenient and fast when replacing.

[0043] It should be noted that in this paper, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding wheel and hob switching mechanism based on a gear hobbing and gear grinding hybrid machine tool, comprising a machine tool (1), characterized in that: The machine tool (1) is provided with a machining mechanism (2) and is used for machining gears, and the machining mechanism (2) comprises: A driving assembly (21) is arranged on the machine tool (1) and is used for controlling machining position and angle; A fixing assembly (22) comprises a mounting seat (221) fixed on the driving assembly (21), and a shaft support (224) fixed at the front end of the mounting seat (221); An installation assembly (23) comprises a cylinder (231) installed between the mounting seat (221) and the shaft support (224), a sliding cylinder (232) slidably installed in the cylinder (231), a movable shaft cylinder (233) rotatably installed at the upper end of the sliding cylinder (232), a knob lever (234) fixed at the lower end of the sliding cylinder (232), a protrusion (235) fixed on the outer wall of the sliding cylinder (232), a spring (236) sleevedly installed on the outer wall of the lower end of the movable shaft cylinder (233), a limiting part (237) formed in the cylinder (231) and used for limiting the protrusion (235), a hob (24) installed on the upper end of the movable shaft cylinder (233), and a grinding wheel (25) installed on the upper end of the hob (24).

2. The abrasive wheel and hob switching mechanism of a gear hobbing and grinding hybrid machine tool based on a wheel roll grinder according to claim 1, characterized in that: The limiting part (237) comprises a sliding groove (2371) and a positioning groove (2372) formed in the cylinder (231), and the positioning groove (2372) is located at the upper end of the sliding groove (2371) and communicates with the sliding groove (2371).

3. The abrasive wheel and hob switching mechanism of a gear hobbing and grinding hybrid machine tool based on a wheel roll grinder according to claim 1, characterized in that: The machining mechanism (2) further comprises shaft heads (26) fixed on the upper and lower ends of the hob (24), the lower end of the hob (24) is connected with the movable shaft cylinder (233) through the shaft heads (26), positioning shaft cylinders (27) fixed on the upper and lower ends of the grinding wheel (25), and the lower end of the grinding wheel (25) is connected with the shaft heads (26) on the upper end of the hob (24) through the positioning shaft cylinders (27).

4. The abrasive wheel and hob switching mechanism of a gear hobbing and grinding hybrid machine tool based on a wheel roll grinder according to claim 3, characterized in that: The driving assembly (21) further comprises a stand (211) fixed on one side of the top of the machine tool (1), a rotary table (212) installed on the upper end of the stand (211), a linear guide rail (213) installed on the rotating disc of the rotary table (212), a motor (214) installed on the sliding block of the linear guide rail (213), and the upper end of the grinding wheel (25) is connected with the output end of the motor (214) through the positioning shaft cylinders (27).

5. The abrasive wheel and hob switching mechanism of a gear hobbing and grinding hybrid machine tool based on a wheel roll grinder according to claim 4, characterized in that: The driving assembly (21) further comprises a plurality of mounting holes (215) formed in the base of the linear guide rail (213), and the mounting seat (221) is fixed on the base of the linear guide rail (213) through the mounting holes (215) and bolts.

6. The abrasive wheel and hob switching mechanism of a gear hobbing and grinding hybrid machine tool based on a wheel roll grinder according to claim 1, characterized in that: The fixing assembly (22) further comprises screw rods (222) hinged at both ends of the mounting seat (221), nuts (223) threadedly installed on the screw rods (222), and grooves (225) formed at both ends of the shaft support (224).

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