Tool setting device of forming wheel gear grinding machine

Abstract

The utility model discloses a forming wheel gear grinding machine tool setting device which comprises a machining table, an X-axis sliding table, a Y-axis sliding table, a Z-axis sliding table, a grinding machine and a bearing rotary table, a measuring mechanism is arranged at the upper end of the grinding machine, the grinding machine comprises a first motor and a grinding wheel, the X-axis sliding table is installed on the upper end face of the machining table, the Z-axis sliding table is installed on the front end face of the X-axis sliding table, and the bearing rotary table is installed on the Y-axis sliding table. The Y-axis sliding table is installed on the front end face of the Z-axis sliding table, a rotating air cylinder is arranged between the Y-axis sliding table and the Z-axis sliding table, the grinding machine is installed on the Y-axis sliding table, the measuring mechanism comprises a measuring caliper, a telescopic air cylinder and a hanging bracket, the measuring caliper and a hydraulic cylinder are installed in the hanging bracket, and a fourth sliding table is arranged between the hanging bracket and the Y-axis sliding table. The measuring mechanism is arranged above the grinding machine, the abrasion degree of the grinding wheel is accurately measured through the measuring caliper, and the abraded grinding wheel can be attached to a gear.

Description

Technical Field

[0001] The utility model relates to the technical field of gear grinding machines, in particular to a tool setting device for a forming wheel gear grinding machine. Background Art

[0002] After production, the gears of automobile transmissions need to be ground. Gear grinding is a high-precision tooth processing method. Through grinding, the errors in the previous process can be corrected, thereby achieving higher gear accuracy. This is very important for transmission gears, because high-precision gears can improve the stability and accuracy of transmission.

[0003] CNC gear grinding machines use grinding wheels as grinding tools to process the tooth surfaces of cylindrical gears or certain gear processing tools. They are mainly used to eliminate deformation after heat treatment and improve gear accuracy. Improving the tool setting accuracy and efficiency of gear grinding machines is of great significance to improving gear processing accuracy and efficiency. Automatic tool setting of gear grinding machines can achieve non-stop tool setting adjustments. It has the advantages of simple operation, high efficiency, and high tool setting accuracy. The main idea of ​​automatic tool setting is: the CNC system automatically obtains the tooth groove boundaries on both sides of the workpiece and records their positions, and then calculates the accurate tooth groove midpoint position, which is the starting point of the feed processing. Finally, the servo system issues instructions to determine the grinding wheel position. Therefore, how to quickly and accurately obtain the tooth groove boundary position is the key to automatic precision tool setting technology.

[0004] However, the grinding wheel of the gear grinder will wear after being used for a period of time, which will cause the thickness of the grinding wheel to change. The existing tool setting mechanism of the CNC gear grinder mostly uses the center of the wear wheel for positioning during tool setting, and cannot compensate for the thickness of the wear wheel, resulting in insufficient fit between the grinding wheel and the gear surface, affecting the processing accuracy.

[0005] For example, a forming grinding wheel gear grinding machine disclosed in the authorization announcement number CN114226868B has a Z-axis slide arranged on a column and can be displaced along the Z-axis relative to the column, an A-axis turntable arranged on the Z-axis slide and can rotate around the A-axis relative to the Z-axis slide, a Y-axis slide arranged on the A-axis turntable and can be displaced along the Y-axis relative to the A-axis turntable, and a W-axis slide arranged on the A-axis turntable and can be displaced along the W-axis relative to the A-axis turntable; a grinding wheel spindle box is arranged on the Y-axis slide, and an external gear grinding wheel is detachably arranged thereon; an external gear dressing spindle box is arranged on the W-axis slide, and an external gear dressing wheel is arranged at the power output end of the external gear dressing spindle box; the Z-axis is the direction of grinding feed, the X-axis is the direction of grinding feed and retract, the Y-axis is the direction of displacement of the grinding wheel spindle box along its own axis, and the W-axis is the direction in which the external gear dressing wheel approaches or moves away from the external gear grinding wheel along the radial direction of the external gear grinding wheel.

[0006] The above-disclosed formed wheel gear grinding machine also has this problem. After being used for a period of time, the grinding wheel of the gear grinding machine wears out, resulting in that although the gear alignment mechanism can remain parallel to the tooth groove, the fit between the grinding wheel and the tooth is poor, thereby affecting the grinding accuracy. Therefore, a tool alignment device for a formed wheel gear grinding machine is needed to solve the above problem. Utility Model Content

[0007] The utility model aims to provide a tool setting device for a forming wheel gear grinding machine, which has the advantage of high tool setting accuracy and solves the problem in the prior art that the grinding wheel of the gear grinding machine has a poor fit with the gear after being worn.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tool setting device for a forming wheel gear grinding machine, comprising a processing table, an X-axis slide, a Y-axis slide, a Z-axis slide, a grinder and a bearing turntable, a measuring mechanism being arranged at the upper end of the grinder, the grinder comprising a first motor and a grinding wheel, the X-axis slide being mounted on the upper end surface of the processing table, the Z-axis slide being mounted on the front end surface of the X-axis slide, the Y-axis slide being mounted on the front end surface of the Z-axis slide, a rotating cylinder being arranged between the Y-axis slide and the Z-axis slide, the grinder being mounted on the Y-axis slide, the measuring mechanism comprising a measuring caliper, a telescopic cylinder and a hanger, the measuring caliper and the hydraulic cylinder being mounted in the hanger, and a fourth slide being arranged between the hanger and the Y-axis slide.

[0009] As a preferred tool setting device of a forming wheel gear grinding machine of the utility model, the measuring caliper comprises a measuring rod and a measuring claw, the measuring claw is sleeved on the measuring rod and slidably connected thereto, and the measuring rod is provided with scale lines.

[0010] As a preferred tool setting device of a forming wheel gear grinding machine of the utility model, the measuring claw is fixedly mounted on the telescopic cylinder, and a pressure-sensitive switch is arranged between the measuring claw and the telescopic cylinder.

[0011] As a preferred tool setting device of a forming wheel gear grinding machine of the utility model, a camera facing the measuring rod is arranged in the hanger, and a display screen connected to the camera is arranged on the side end surface of the hanger.

[0012] As a preferred tool setting device of a forming wheel gear grinding machine of the utility model, a repair frame is arranged above the processing table, and a second motor and a repair wheel are arranged on the repair frame.

[0013] As a preferred tool setting device of a forming wheel gear grinding machine of the utility model, a grinding stone is arranged on the upper end surface of the bottom of the repair frame.

[0014] As a preferred tool setting device for a forming wheel gear grinding machine of the utility model, a controller is arranged on the processing table.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model sets a measuring mechanism above the grinder and uses a measuring caliper to accurately measure the degree of wear of the grinding wheel, thereby facilitating the adjustment of the sliding of the Y-axis slide table and adjusting the position of the grinding wheel so that the worn grinding wheel can fit the gear, thereby increasing the service life of the grinding wheel and improving the grinding accuracy of the gear.

[0017] 2. The utility model arranges a camera and a display screen on the hanger, which facilitates quick reading of the measuring caliper and convenient observation of the grinding wheel status so that the grinding wheel can be repaired and replaced in time, thereby further improving the convenience of the equipment.

[0018] 3. The utility model provides a repair frame with a repair wheel and a grinding stone on the processing table to comprehensively repair the grinding wheel, thereby further improving the service life and grinding effect of the grinding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is an exploded view of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the measuring mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the matching state of the measuring caliper and the telescopic cylinder of the utility model;

[0023] Figure 5 It is a side sectional view of the repair frame of the utility model.

[0024] In the figure: 1, processing table; 101, controller; 2, X-axis slide; 3, Z-axis slide; 4, Y-axis slide; 401, rotary cylinder; 5, grinder; 501, first motor; 502, grinding wheel; 6, bearing turntable; 7, measuring mechanism; 710, hanger; 711, camera; 712, display screen; 720, measuring caliper; 721, measuring rod; 722, measuring claw; 730, telescopic cylinder; 731, pressure-sensitive switch; 740, fourth slide; 8, repair frame; 801, second motor; 802, repair wheel; 803, grinding stone. DETAILED DESCRIPTION

[0025] See also Figure 1-Figure 5 , a tool setting device for a forming wheel gear grinding machine, comprising a processing table 1, an X-axis slide 2, a Y-axis slide 4, a Z-axis slide 3, a grinder 5 and a bearing turntable 6, wherein a measuring mechanism 7 is arranged at the upper end of the grinder 5;

[0026] The grinder 5 includes a first motor 501 and a grinding wheel 502, the X-axis slide 2 is installed on the upper end surface of the processing table 1, the Z-axis slide 3 is installed on the front end surface of the X-axis slide 2, the Y-axis slide 4 is installed on the front end surface of the Z-axis slide 3, a rotating cylinder 401 is arranged between the Y-axis slide 4 and the Z-axis slide 3, the grinder 5 is installed on the Y-axis slide 4, the measuring mechanism 7 includes a measuring caliper 720, a telescopic cylinder 730 and a hanger 710, the measuring caliper 720 and the hydraulic cylinder are installed in the hanger 710, and a fourth slide 740 is arranged between the hanger 710 and the Y-axis slide 4.

[0027] When the device is in use, before each start of the grinder 5, the degree of wear on both sides of the grinding wheel 502 is measured by the detection mechanism, so that the telescopic cylinder 730 pushes the measuring claw 722 to slide along the measuring rod 721 until the measuring claw 722 squeezes the side end surface of the grinding wheel 502, triggering the pressure-sensitive switch 731 to stop moving, and the scale of the measuring rod 721 is magnified by the camera 711 and transmitted to the display screen 712, and the distance between the two sides of the grinding wheel 502 and the center is observed, so as to judge the wear condition of the two sides of the grinding wheel 502, and adjust the Y-axis slide 4 to compensate according to the wear thickness of the grinding wheel 502, so that the grinding wheel 502 can keep in contact with the teeth of the gear.

[0028] Furthermore, the measuring caliper 720 includes a measuring rod 721 and a measuring claw 722 . The measuring claw 722 is sleeved on the measuring rod 721 and slidably connected thereto. The measuring rod 721 is provided with scale lines.

[0029] By reading the distance between the two measuring claws 722 and the center scale, the wear degree of both sides of the grinding wheel 502 can be measured.

[0030] Furthermore, the measuring claw 722 is fixedly mounted on the telescopic cylinder 730 , and a pressure-sensitive switch 731 is provided between the measuring claw 722 and the telescopic cylinder 730 .

[0031] The measuring claw 722 is driven toward the grinding wheel 502 by the telescopic cylinder 730. When the pressure of the pressure-sensitive switch 731 reaches the threshold, the movement is stopped and the scales of the measuring claws 722 on both sides are read.

[0032] Furthermore, a camera 711 facing the measuring rod 721 is arranged in the hanger 710 , and a display screen 712 connected to the camera 711 is arranged on the side end surface of the hanger 710 .

[0033] The measurement result is transmitted to the display screen 712 through the camera 711, so as to facilitate the judgment of adjusting the Y-axis slide 4 to compensate and correct the grinding wheel 502. At the same time, it is convenient to observe the state of the grinding wheel 502 through the display screen 712, so as to facilitate the timely repair and replacement of the grinding wheel 502.

[0034] Furthermore, a repair frame 8 is provided above the processing table 1 , and a second motor 801 and a repair wheel 802 are provided on the repair frame 8 .

[0035] When the Z-axis slide table 3 slides downward, it drives the grinding wheel 502 to enter the repair frame 8, so that the second motor 801 drives the repair wheel 802 to rotate to repair the side of the grinding wheel 502.

[0036] Furthermore, a grinding stone 803 is provided on the upper end surface of the bottom of the repair frame 8 .

[0037] When the grinding wheel 502 rotates, the edge of the grinding wheel 502 contacts the grinding stone 803 to repair the edge of the grinding wheel 502 .

[0038] Furthermore, a controller 101 is provided on the processing table 1 .

[0039] The device is controlled by the controller 101 to perform operations such as grinding wheel 502 thickness measurement, tool compensation, and grinding wheel 502 repair.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool setting device for a forming wheel gear grinding machine, comprising a processing table (1), an X-axis slide table (2), a Y-axis slide table (4), a Z-axis slide table (3), a grinder (5) and a bearing turntable (6), characterized in that: The upper end of the grinding machine (5) is provided with a measuring mechanism (7); The grinding machine (5) comprises a first motor (501) and a grinding wheel (502); the X-axis slide (2) is mounted on the upper end surface of the processing table (1); the Z-axis slide (3) is mounted on the front end surface of the X-axis slide (2); the Y-axis slide (4) is mounted on the front end surface of the Z-axis slide (3); a rotating cylinder (401) is arranged between the Y-axis slide (4) and the Z-axis slide (3); the grinding machine (5) is mounted on the Y-axis slide (4); the measuring mechanism (7) comprises a measuring caliper (720), a telescopic cylinder (730) and a hanger (710); the measuring caliper (720) and the hydraulic cylinder are mounted in the hanger (710); and a fourth slide (740) is arranged between the hanger (710) and the Y-axis slide (4).

2. A tool setting device for a forming wheel gear grinding machine according to claim 1, characterized in that: The measuring caliper (720) comprises a measuring rod (721) and a measuring claw (722), wherein the measuring claw (722) is sleeved on the measuring rod (721) and slidably connected thereto, and the measuring rod (721) is provided with scale lines.

3. A tool setting device for a forming wheel gear grinding machine according to claim 2, characterized in that: The measuring claw (722) is fixedly mounted on the telescopic cylinder (730), and a pressure-sensitive switch (731) is provided between the measuring claw (722) and the telescopic cylinder (730).

4. A tool setting device for a forming wheel gear grinding machine according to claim 3, characterized in that: A camera (711) facing the measuring rod (721) is arranged inside the hanger (710), and a display screen (712) connected to the camera (711) is arranged on the side end surface of the hanger (710).

5. The tool setting device for a forming wheel gear grinding machine according to claim 1, characterized in that: A repair frame (8) is arranged above the processing table (1), and a second motor (801) and a repair wheel (802) are arranged on the repair frame (8).

6. A tool setting device for a forming wheel gear grinding machine according to claim 5, characterized in that: A grinding stone (803) is provided on the upper end surface of the bottom of the repair frame (8).

7. The tool setting device for a forming wheel gear grinding machine according to claim 1, characterized in that: The processing table (1) is provided with a controller (101).

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