Device for automatically aligning gear contour position of gear scraping machine tool

Abstract

The utility model provides a device for automatically aligning the gear contour position of a gear scraping machine tool, which comprises a machine tool body, and an upright post is arranged at the top of the machine tool body through a radial feeding device in a sliding fit manner; a sliding base is installed on the side face of the stand column through an axial feeding device in a sliding fit mode. A sliding plate is mounted on the sliding seat, a spindle is fixedly mounted on the sliding plate, and a cutter is mounted on an output shaft of the spindle; a fixing plate is installed on the outer wall of the main shaft, a T-shaped groove is formed in the outer wall of the fixing plate, the direction of the T-shaped groove is perpendicular to the axial direction of the main shaft, an air cylinder is adjustably installed on the T-shaped groove, and the axial direction of a piston rod of the air cylinder is parallel to the axial direction of the main shaft; side heads are fixedly mounted at the tail ends of piston rods of the cylinders through bracket structures; a workbench is installed on the side face of the stand column. The device is installed on the front face of a main shaft and can be adjusted in the tangential direction, so that clamping and positioning of the gear scraping machine during secondary gear machining are facilitated, and then it is guaranteed that after the machining position is changed due to the fact that different workpieces are replaced on a machine tool, the gear tooth profile position can be rapidly and accurately aligned.

Description

Technical Field

[0001] This utility model relates to the field of gear scraping machine technology, and in particular to a device for automatically aligning the gear profile position on a gear scraping machine. Background Technology

[0002] After rough machining or heat treatment, when gears are clamped for secondary machining on a gear scraping machine, the position of the gear tooth profile cannot be determined, resulting in the tool and workpiece not meshing correctly. In addition, some double-toothed gears have strict phase requirements for the upper and lower teeth, and traditional gear scraping machines cannot meet the requirements for quickly and accurately determining the gear profile position. Manual adjustment of the clamping process is required repeatedly, which seriously affects the accuracy and efficiency of gear alignment and clamping. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a device for automatically aligning the gear profile position on a gear scraping machine. By installing this device on the front of the spindle, it can be tangentially adjusted for clamping and positioning during secondary gear processing on the gear scraping machine. This ensures that when the machine tool changes to different workpieces, resulting in a change in the processing position, the gear tooth profile position can be quickly and accurately aligned, enabling the correct meshing of the tool and the workpiece.

[0004] To achieve the aforementioned technical features, the purpose of this utility model is as follows: A device for automatically aligning the gear contour position on a gear scraping machine includes a bed, a column slidably mounted on the top of the bed via a radial feed device; a slide block slidably mounted on the side of the column via an axial feed device; a slide plate mounted on the slide block, a spindle fixedly mounted on the slide plate, and a cutting tool mounted on the output shaft of the spindle; a fixing plate mounted on the outer wall of the spindle, a T-slot provided on the outer wall of the fixing plate, the direction of the T-slot being perpendicular to the axial direction of the spindle, an adjustable cylinder mounted on the T-slot, the piston rod of the cylinder being parallel to the axial direction of the spindle; a side head fixedly mounted at the end of the piston rod of the cylinder via a bracket structure; and a worktable mounted on the side of the column.

[0005] Preferably, the radial feed device includes a radial feed motor fixed to the bed, the output shaft of the radial feed motor is connected to a radial feed screw, the radial feed screw and the column form a screw drive engagement, and drive the column to move along the horizontal X direction of the bed.

[0006] Preferably, the axial feed device includes an axial feed motor fixed to the top of the column, the output shaft of the axial feed motor is connected to an axial feed screw, the axial feed screw and the slide form a screw drive engagement, and drive the slide to move vertically along the Z-direction of the bed.

[0007] Preferably, the fixing plate is fixedly connected to the outer wall of the spindle by a plurality of first screws.

[0008] Preferably, the cylinder is fixed on a cylinder mounting base, and the cylinder mounting base is connected to the T-slot by a second screw. There are two sets of T-slots arranged in parallel.

[0009] Preferably, the cylinder mounting base can slide along the T-slot in the Y direction, and the Y direction is perpendicular to the axis Z1 of the main shaft.

[0010] Preferably, the support structure includes a movable support fixed to the end of the piston rod, a probe connecting support fixed to the end of the movable support, and a side head fixed to the end side wall of the probe connecting support.

[0011] Preferably, the side head is a proximity switch so as to measure the position of the gear profile during the relative rotation of the side head and the gear to be measured.

[0012] The present invention has the following beneficial effects:

[0013] 1. This utility model, by installing a tangentially adjustable alignment device on the front of the spindle, can quickly and accurately align the position of the gear tooth profile to be measured when the machining position changes due to the replacement of different workpieces on the machine tool, so as to achieve correct meshing and machining between the tool and the workpiece.

[0014] 2. The radial feed device can be used to drive the column horizontally in the X direction.

[0015] 3. The axial feed device described above can be used to adjust the Z-axis movement of the slide.

[0016] 4. The T-slots mentioned above ensure that the cylinder mounting base can be translated in a direction perpendicular to the spindle axis, thereby achieving Y-axis position adjustment.

[0017] 5. The above-mentioned directional arrangement ensures that the position of the head can be adjusted later.

[0018] 6. The above-mentioned bracket structure enables reliable fixed installation of the side head, thereby ensuring the reliability of its installation and fixation.

[0019] 7. The proximity switch mentioned above facilitates the measurement of the gear profile of the gear to be measured during the rotation of the gear to be measured. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is the front view of the present utility model.

[0022] Figure 2 This is the left view of the present invention.

[0023] Figure 3 This is a top view of the present invention.

[0024] In the diagram: 1. Bed; 2. Worktable; 3. Gear to be measured; 4. Radial feed motor; 5. Radial feed screw; 6. Column; 7. Slide; 8. Axial feed screw; 9. Slide plate; 10. Axial feed motor; 11. Spindle; 12. Cylinder; 13. Tool; 14. Moving bracket; 15. Probe connecting bracket; 16. Probe; 17. Fixing plate; 18. First screw; 19. Cylinder fixing seat; 20. Second screw; 21. T-slot; 22. Zero point of worktable angle; 23. Left cusp of gear tooth profile; 24. Right cusp of gear tooth profile; 25. Center line of gear tooth profile; 26. Angle A1 between the line connecting the left cusp of gear tooth profile 23 and the center point of the gear and the zero point of worktable angle; 27. Angle A2 between the line connecting the left cusp of gear tooth profile 23 and the center point of the gear and the zero point of worktable angle; 28. Angle A3 between the center line of gear tooth profile 25 and the zero point of worktable angle. Detailed Implementation

[0025] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0026] Example 1:

[0027] See Figure 1-3 A device for automatically aligning the gear contour position on a gear scraping machine includes a bed 1. A column 6 is slidably mounted on the top of the bed 1 via a radial feed device. A slide 7 is slidably mounted on the side of the column 6 via an axial feed device. A slide plate 9 is mounted on the slide plate 7, and a spindle 11 is fixedly mounted on the slide plate 9. A cutting tool 13 is mounted on the output shaft of the spindle 11. A fixing plate 17 is mounted on the outer wall of the spindle 11. A T-slot 21 is provided on the outer wall of the fixing plate 17. The direction of the T-slot 21 is perpendicular to the axial direction of the spindle 11. A cylinder 12 is tunably mounted on the T-slot 21. The axial direction of the piston rod of the cylinder 12 is parallel to the axial direction of the spindle 11. A side head 16 is fixedly mounted on the end of the piston rod of the cylinder 12 via a bracket structure. A worktable 2 is mounted on the side of the column 6. This invention overcomes the problem that traditional gear scraping machines cannot automatically align the phase of the gear to be measured through the above-mentioned device. After the gear to be measured is rough-machined or heat-treated and then installed, or when machining double teeth with phase requirements, by installing a tangentially adjustable alignment device on the front of the spindle, when the machining position changes due to the change of different workpieces, the tooth profile position of the gear to be measured can be quickly and accurately aligned, so as to achieve correct meshing between the tool and the workpiece.

[0028] Furthermore, the radial feed device includes a radial feed motor 4 fixed on the bed 1. The output shaft of the radial feed motor 4 is connected to a radial feed lead screw 5. The radial feed lead screw 5 and the column 6 form a lead screw transmission engagement, driving the column 6 to move horizontally along the bed 1 in the X direction. The radial feed device can be used to drive the column 6 horizontally in the X direction. During operation, when horizontal X-direction driving of the column 6 is required, the radial feed motor 4 is started, driving the radial feed lead screw 5, which in turn drives the column 6 to move along the bed 1.

[0029] Furthermore, the axial feed device includes an axial feed motor 10 fixed to the top of the column 6. The output shaft of the axial feed motor 10 is connected to an axial feed screw 8. The axial feed screw 8 and the slide 7 form a screw drive engagement, driving the slide 7 to move vertically along the Z-axis of the bed 1. This axial feed device can be used to adjust the Z-axis movement of the slide 7. During operation, when Z-axis adjustment of the spindle 11 is required, the axial feed motor 10 is started, driving the axial feed screw 8, which in turn drives the slide 7 to achieve axial movement.

[0030] Furthermore, the fixing plate 17 is fixedly connected to the outer wall of the spindle 11 by a plurality of first screws 18. This fixing method ensures reliable fixation between the fixing plate 17 and the spindle 11.

[0031] Furthermore, the cylinder 12 is fixed on the cylinder mounting base 19, which is connected to the T-slot 21 by a second screw 20. There are two sets of T-slots 21 arranged in parallel. The T-slots 21 ensure that the cylinder mounting base 19 can be translated in a direction perpendicular to the axis of the main shaft 11, thereby achieving position adjustment in the Y direction.

[0032] Furthermore, the cylinder mounting base 19 can slide along the T-slot 21 in the Y direction, which is perpendicular to the axial direction Z1 of the main shaft 11. This directional arrangement ensures that the position of the side head 16 can be adjusted subsequently.

[0033] Furthermore, the support structure includes a movable support 14 fixed to the end of the piston rod, a probe connecting support 15 fixed to the end of the movable support 14, and a side head 16 fixed to the end side wall of the probe connecting support 15. This support structure enables reliable fixing of the side head 16, thereby ensuring the reliability of its installation.

[0034] Furthermore, the side head 16 employs a proximity switch to measure the contour position of the gear 3 under test during relative rotation between the side head 16 and the gear 3 under test. This proximity switch facilitates the measurement of the gear contour of the gear 3 under test during its rotation.

[0035] Example 2:

[0036] On the other hand, this utility model provides a method for automatically aligning the gear contour position on a gear scraping machine tool. The method is implemented using the aforementioned device for automatically aligning the gear contour position on a gear scraping machine tool, and includes the following steps:

[0037] Step 1: Start cylinder 12. Cylinder 12 drives side head 16 to move to the lowest position along the Z1 direction of the main shaft 11.

[0038] Step 2: Loosen the second screw 20, so that the cylinder mounting seat 19 moves in a straight line along the T-slot 21. After aligning the side head 16 with the axis of the gear 3 to be measured, tighten the second screw 20.

[0039] Step 3: Cylinder 12 drives the moving bracket 14 to move the probe 16 to the uppermost position along the Z1 direction;

[0040] Step 4: The axial feed motor 10 drives the slide 7, slide plate 9, spindle 11, cutter 13 and probe 16 to move linearly in the vertical Z direction through the axial feed screw 8, so that the cutter 13 moves above the gear 3 to be measured, and the distance between the cutter 13 and the upper end face of the gear 3 to be measured is h1.

[0041] Step 5: The radial feed motor 4 drives the column 6 and the probe 16 to move linearly in the horizontal X direction through the radial feed screw 5, so that the distance between the probe 16 and the tip circle of the gear 3 to be measured is h2.

[0042] Step 6: Cylinder 12 drives the moving bracket 14 to move the probe 16 to the lowest position in the Z1 direction, and the probe 16 enters the hole of the gear 3 to be measured.

[0043] Step 7: The workbench 2 drives the gear 3 to be measured to rotate, and the probe 16 measures the angle A1 between the line connecting the left tip 23 of the gear tooth profile and the center point of the gear and the zero angle position 22 of the workbench, and the angle A2 between the line connecting the left tip 23 of the gear tooth profile and the center point of the gear and the zero angle position 22 of the workbench.

[0044] Step 8: The machine tool automatically calculates the angle A3 = A1 + (A2 - A1) / 2 between the center line 25 of the gear tooth profile and the zero point position 22 of the worktable. The worktable 2 drives the gear 3 to be measured to rotate by an angle A3 so that the center line 25 of the gear tooth profile coincides with the zero point position 22 of the worktable.

[0045] Step nine: Based on the measured contour position, achieve correct meshing and machining between the cutting tool and the gear 3 to be measured.

[0046] Furthermore, the value of h1 in step four ensures that the tool 13 is located above the gear 3 to be measured, and that there is no collision or interference between the two.

[0047] In step five, the value of h2 is 0-2mm.

[0048] Example 3:

[0049] A method for automatically aligning the gear profile position on a gear scraping machine, the method being implemented using a device for automatically aligning the gear profile position on a gear scraping machine, comprising the following steps:

[0050] Step 1: Start cylinder 12. Cylinder 12 drives side head 16 to move to the lowest position along the Z1 direction of the main shaft 11.

[0051] Step 2: Loosen the second screw 20, so that the cylinder mounting seat 19 moves in a straight line along the T-slot 21. After aligning the side head 16 with the axis of the gear 3 to be measured, tighten the second screw 20.

[0052] Step 3: Cylinder 12 drives the moving bracket 14 to move the probe 16 to the uppermost position along the Z1 direction;

[0053] Step 4: The axial feed motor 10 drives the slide 7, slide plate 9, spindle 11, cutter 13 and probe 16 to move linearly in the vertical Z direction through the axial feed screw 8, so that the cutter 13 moves above the gear 3 to be measured, and the distance between the cutter 13 and the upper end face of the gear 3 to be measured is 30mm.

[0054] Step 5: The radial feed motor 4 drives the column 6 and the probe 16 to move linearly in the horizontal X direction through the radial feed screw 5, so that the distance between the probe 16 and the tip circle of the gear 3 to be measured is 0.5mm.

[0055] Step 6: Cylinder 12 drives the moving bracket 14 to move the probe 16 to the lowest position in the Z1 direction, and the probe 16 enters the hole of the gear 3 to be measured.

[0056] Step 7: The workbench 2 drives the gear 3 to be measured to rotate, and the probe 16 measures the angle A1 between the line connecting the left tip 23 of the gear tooth profile and the center point of the gear and the zero angle position 22 of the workbench, and the angle A2 between the line connecting the left tip 23 of the gear tooth profile and the center point of the gear and the zero angle position 22 of the workbench.

[0057] Step 8: The machine tool automatically calculates the angle A3 = A1 + (A2 - A1) / 2 between the center line 25 of the gear tooth profile and the zero point position 22 of the worktable. The worktable 2 drives the gear 3 to be measured to rotate by an angle A3 so that the center line 25 of the gear tooth profile coincides with the zero point position 22 of the worktable.

[0058] Step nine: Based on the measured contour position, achieve correct meshing and machining between the cutting tool and the gear 3 to be measured.

Claims

1. A device for automatically aligning the gear profile position on a gear scraping machine, characterized in that, The machine includes a bed (1), a column (6) is slidably mounted on the top of the bed (1) through a radial feed device; a slide (7) is slidably mounted on the side of the column (6) through an axial feed device; a slide plate (9) is mounted on the slide plate (7), a spindle (11) is fixedly mounted on the slide plate (9), and a tool (13) is mounted on the output shaft of the spindle (11); a fixing plate (17) is mounted on the outer wall of the spindle (11), a T-slot (21) is provided on the outer wall of the fixing plate (17), the direction of the T-slot (21) is perpendicular to the axial direction of the spindle (11), a cylinder (12) is tunably mounted on the T-slot (21), the axial direction of the piston rod of the cylinder (12) is parallel to the axial direction of the spindle (11); a side head (16) is fixedly mounted on the end of the piston rod of the cylinder (12) through a bracket structure; and a worktable (2) is mounted on the side of the column (6).

2. The device for automatically aligning the gear profile position on a gear scraping machine tool according to claim 1, characterized in that: The radial feed device includes a radial feed motor (4) fixed on the bed (1). The output shaft of the radial feed motor (4) is connected to a radial feed screw (5). The radial feed screw (5) and the column (6) form a screw drive cooperation and drive the column (6) to move along the horizontal X direction of the bed (1).

3. The device for automatically aligning the gear profile position on a gear scraping machine tool according to claim 1, characterized in that: The axial feed device includes an axial feed motor (10) fixed at the top of the column (6). The output shaft of the axial feed motor (10) is connected to an axial feed screw (8). The axial feed screw (8) and the slide (7) form a screw drive cooperation and drive the slide (7) to move along the vertical Z direction of the bed (1).

4. The device for automatically aligning the gear profile position on a gear scraping machine tool according to claim 1, characterized in that: The fixing plate (17) is fixedly connected to the outer wall of the main shaft (11) by a plurality of first screws (18).

5. The device for automatically aligning the gear profile position on a gear scraping machine tool according to claim 1, characterized in that: The cylinder (12) is fixed on the cylinder mounting base (19), and the cylinder mounting base (19) is connected to the T-slot (21) by the second screw (20). There are two sets of T-slots (21) arranged in parallel.

6. The device for automatically aligning the gear profile position on a gear scraping machine tool according to claim 5, characterized in that: The cylinder mounting base (19) can slide along the T-groove (21) in the Y direction, which is perpendicular to the axis Z1 of the main shaft (11).

7. The device for automatically aligning the gear profile position on a gear scraping machine tool according to claim 5, characterized in that: The support structure includes a movable support (14) fixed to the end of the piston rod, a probe connecting support (15) fixed to the end of the movable support (14), and a side head (16) fixed on the end side wall of the probe connecting support (15).

8. The device for automatically aligning the gear profile position on a gear scraping machine tool according to claim 5, characterized in that: The side head (16) is equipped with a proximity switch so that the contour position of the gear (3) to be measured can be measured during the relative rotation of the side head (16) and the gear (3) to be measured.

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