Precision detection mechanism of composite grinding machine

Abstract

The utility model belongs to the technical field of grinding machines, and relates to a precision detection mechanism of a composite grinding machine, which comprises a grinding machine base, one side of the grinding machine base is provided with a longitudinally sliding clamp workbench, the other side of the grinding machine base is provided with a transversely sliding inner circle grinding tool workbench, and the clamp workbench is provided with a workpiece clamp. An inner circle grinding spindle is arranged on the inner circle grinding tool workbench, an inner circle grinding wheel is sleeved on the inner circle grinding spindle, a dynamic detection mechanism is arranged on the clamp workbench, the dynamic detection mechanism comprises a measuring instrument seat, a rotary detection base plate is rotatably arranged on the measuring instrument seat, an inner diameter detection device is arranged on the rotary detection base plate, and the inner diameter detection device is arranged on the inner diameter detection base plate. And a pair of dynamic detection probes is arranged at the end part of the inner diameter detection device. According to the precision detection mechanism of the composite grinding machine, the internal grinding condition can be detected in real time, and the detection requirement for higher machining precision is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding machines, and relates to a precision detection mechanism for a composite grinding machine. Background Technique

[0002] A numerically controlled grinding machine is a machine tool that uses grinding tools to grind the surface of workpieces. Numerically controlled grinding machines generally have very high requirements for machining accuracy. Chinese Patent Application for Invention CN116141164A (Publication Date: May 23, 2023) discloses a high-precision numerically controlled composite grinding machine, which relates to the technical field of numerically controlled grinding machines and includes a base. A clamping device, a grinding device and a detection device are arranged on the base. The clamping device includes a clamping mechanism and a moving mechanism. The clamping mechanism is used to clamp the workpiece, and the moving mechanism is used to drive the clamping mechanism to move. The grinding device is used for internal hole grinding of the clamped workpiece, and the detection device is used for detecting the clamped workpiece and detecting the inner diameter size.

[0003] The above grinding machine first detects the clamped workpiece to be processed, then performs internal hole grinding, and then detects the inner diameter size after grinding. By comparing with the set value, the internal hole grinding finally meets the process requirements. In order to further improve the machining accuracy, it is necessary to detect the grinding situation in real time during the internal hole machining process, but this grinding machine cannot meet this requirement. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a precision detection mechanism for a composite grinding machine, which can detect the internal circle grinding situation in real time and meet the detection requirements of higher machining accuracy.

[0005] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0006] A precision detection mechanism for a composite grinding machine includes a grinding machine base. A jig worktable that slides longitudinally is arranged on one side of the grinding machine base, and an internal circle grinding tool worktable that slides transversely is arranged on the other side. A workpiece jig is arranged on the jig worktable, and an internal circle grinding spindle is arranged on the internal circle grinding tool worktable. An internal circle grinding wheel is sleeved on the internal circle grinding spindle. A dynamic detection mechanism is arranged on the jig worktable. The dynamic detection mechanism includes a gauge base. A rotating detection backing plate is rotatably arranged on the gauge base. An inner diameter detection device is arranged on the rotating detection backing plate. A pair of dynamic detection probes are arranged at the end of the inner diameter detection device. The dynamic detection probes enter the inner circle of the workpiece as the rotating detection backing plate rotates, and detect the inner circle size in real time during the internal circle machining.

[0007] In the precision detection mechanism of the above-mentioned composite grinder, the driving mechanism of the rotating detection pad is a rotating cylinder, the rotating cylinder is fixed above the measuring instrument seat, one end of the rotating detection pad is fixedly connected to the turntable of the rotating cylinder, and the inner diameter detection device is fixedly connected to the other end of the rotating detection pad. Of course, the driving mechanism of the rotating detection pad can also use other mechanisms, such as a reduction motor, a rotating cylinder, etc.

[0008] In the precision detection mechanism of the composite grinder, the fixture workbench is provided with a transverse adjustment slot, and the measuring instrument seat is adjustable and slidable in the adjustment slot. Preferably, the adjustment slot is a T-slot.

[0009] In the above-mentioned precision detection mechanism of a composite grinder, the front side of the measuring instrument seat is slidably matched with the fixture workbench through a dovetail structure, countersunk holes are provided on the left and right sides of the measuring instrument seat, and fasteners for fixing the measuring instrument seat and the adjustment groove are passed through the countersunk holes.

[0010] In the above-mentioned precision detection mechanism of a composite grinder, a laterally sliding external cylindrical grinding tool worktable is arranged on the base of the grinder, a column is arranged on the external cylindrical grinding tool worktable, a vertically sliding grinding head seat is arranged on the front side of the column, an external cylindrical grinding spindle is arranged in the grinding head seat, an external cylindrical grinding wheel is mounted on the external cylindrical grinding spindle, and a static detection probe for detecting the grinding amount of the workpiece is arranged on the front side of the grinding head seat.

[0011] In the precision detection mechanism of the composite grinder, the static detection probe is connected to the end of an L-shaped probe swing arm, the probe swing arm is driven to rotate by a power device, and the rotation axis of the probe swing arm and the axis of the static detection probe are distributed in the transverse direction. Furthermore, the rear end of the probe swing arm is arranged in the longitudinal direction, and the front end is arranged in the transverse direction.

[0012] In the precision detection mechanism of the above-mentioned composite grinder, a motor seat is fixed to the front side of the grinding head seat, a servo motor is installed on one side of the motor seat, the rear end of the probe swing arm is arranged on the other side of the motor seat and is drivingly connected to the motor shaft of the servo motor, and the static detection probe is installed on the front end of the probe swing arm. Of course, the driving mechanism of the probe swing arm can also use other devices, such as a rotary cylinder, etc.

[0013] In the above-mentioned precision detection mechanism of a composite grinder, each worktable is driven by a linear motor or a motor screw mechanism. Preferably, one or more of the fixture worktable, the inner cylindrical grinding tool worktable and the outer cylindrical grinding tool worktable are driven by a linear motor.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model provides a precision detection mechanism for a composite grinder. When necessary, the dynamic detection probe of the inner diameter detection device can be placed into the inner circle of the workpiece, and the radial size of the inner circle of the workpiece can be detected in real time during the rotation processing of the workpiece, so as to better detect the processing condition of the inner circle of the workpiece and meet the detection requirements of higher processing accuracy. When processing other parts, the dynamic detection probe can be moved to an avoidance position to avoid interfering with the processing of other parts.

[0016] 2. The utility model further provides a static detection probe for detecting various processing data before and after processing, so as to determine the grinding amount, the processing completion status, etc., so as to better complete the processing. The utility model can further meet the detection needs of higher processing accuracy by combining the dynamic detection probe and the static detection probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the dynamic detection device of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the static detection device of the utility model;

[0020] Figure numerals: 1. Grinding machine base; 2. Fixture worktable; 3. Internal grinding tool worktable; 4. Workpiece fixture; 5. Internal grinding spindle; 6. Internal grinding wheel; 7. Measuring instrument seat; 8. Rotating detection pad; 9. Inner diameter detection device; 10. Dynamic detection probe; 11. Rotating cylinder; 12. Adjusting groove; 13. Dovetail structure; 14. Countersunk hole; 15. External grinding tool worktable; 16. Column; 17. Grinding head seat; 18. External grinding spindle; 19. External grinding wheel; 20. Static detection probe; 21. Probe swing arm; 22. Motor seat; 23. Servo motor. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings. Figure 1-3 :

[0022] A precision detection mechanism for a composite grinder comprises a grinder base 1, one side of the grinder base 1 is provided with a fixture worktable 2 for longitudinal sliding, the other side is provided with an inner cylindrical grinding tool worktable 3 for transverse sliding, the fixture worktable 2 is provided with a workpiece fixture 4, the inner cylindrical grinding tool worktable 3 is provided with an inner cylindrical grinding spindle 5, the inner cylindrical grinding spindle 5 is sleeved with an inner cylindrical grinding wheel 6, the fixture worktable 2 is provided with a dynamic detection mechanism, the dynamic detection mechanism comprises a measuring instrument seat 7, a rotating detection pad 8 is rotatably provided on the measuring instrument seat 7, an inner diameter detection device 9 is provided on the rotating detection pad 8, a pair of dynamic detection probes 10 are provided at the ends of the inner diameter detection device 9, the dynamic detection probes 10 enter the inner circle of the workpiece as the rotating detection pad 8 rotates, and detect the inner circle size in real time during inner circle machining.

[0023] Compare with Figure 1 The working method of this embodiment is as follows: at the loading station, the workpiece is transferred to the workpiece fixture 4 through the loading device and clamped, the rotating detection pad 8 is driven to rotate by the driving device, and the inner diameter detection device 9 rotates accordingly, and the dynamic detection probe 10 is transferred from the opening to the inner circle of the workpiece and contacts with the inner circle surface of the same diameter respectively, and then the fixture workbench 2 is moved to the processing station, the workpiece and the dynamic detection probe 10 are synchronously moved to the processing station, the internal grinding wheel 6 is fed to the inner circle surface of the workpiece, and the power device of the workpiece fixture 4 and the internal grinding spindle 5 is started for processing, and the dynamic detection probe 10 is moved to the inner circle of the workpiece from the opening to the inner circle of the workpiece. The measuring probe 10 and the inner cylindrical surface of the workpiece produce relative displacement but always fit together, thereby performing real-time detection of the size of the inner cylindrical processing. After the processing is completed, the inner cylindrical mold worktable 3 is reset, and the driving device drives the rotating detection pad 8 to rotate in the other direction, and the inner diameter detection device 9 rotates accordingly. The dynamic detection probe 10 rotates out of the inner circle of the workpiece and resets, and then can be moved to the unloading station to remove the processed workpiece or moved to another processing station. When processing the outer cylindrical surface or other positions, the inner diameter detection device 9 and the dynamic detection probe 10 rotate to the initial position, that is, the avoidance position.

[0024] In this example, the Figure 2 The driving structure of the dynamic detection mechanism is: the driving mechanism of the rotating detection pad 8 is a rotating cylinder 11, the rotating cylinder 11 is fixed above the measuring instrument seat 7, one end of the rotating detection pad 8 is fixedly connected to the turntable of the rotating cylinder 11, and the inner diameter detection device 9 is fixedly connected to the other end of the rotating detection pad 8. At the same time, the above arrangement can conveniently move the dynamic detection probe 10 between the detection position and the avoidance position.

[0025] In order to adapt to workpieces of different specifications, the fixture workbench 2 is provided with a transverse adjustment slot 12, and the measuring instrument seat 7 is adjustable and slidable in the adjustment slot 12. Preferably, the adjustment slot 12 is a T-slot. By changing the position of the measuring instrument seat 7, the dynamic detection probe 10 can be rotated to be exactly located at a predetermined position of the inner circle of the workpiece.

[0026] Furthermore, the front side of the measuring instrument seat 7 is slidably matched with the fixture workbench 2 through a dovetail structure 13, and countersunk holes 14 are provided on the left and right sides of the measuring instrument seat 7. Fasteners for fixing the measuring instrument seat 7 and the adjustment slot 12 are inserted into the countersunk holes 14. When adjustment is required, the fasteners are loosened, slid to a predetermined position, and then locked again.

[0027] This embodiment further provides a static detection mechanism for detecting various processing data before and after processing. By detecting the data before processing, the grinding amount can be determined separately according to the actual situation of the workpiece after analysis, and the processing effect can be determined by detecting the data after processing. In conjunction with the feed mechanism of the composite grinder itself, the static detection mechanism can detect various positions such as the outer cylindrical surface, step surface, end surface, inner cylindrical surface, etc. Its specific structure is:

[0028] The above-mentioned grinder base 1 is provided with a laterally sliding external cylindrical grinding tool worktable 15, on which a column 16 is provided, a vertically sliding grinding head seat 17 is provided in front of the column 16, an external cylindrical grinding spindle 18 is provided in the grinding head seat 17, an external cylindrical grinding wheel 19 is mounted on the external cylindrical grinding spindle 18, and a static detection probe 20 for detecting the grinding amount of the workpiece is provided in front of the grinding head seat 17.

[0029] Compare with Figure 3 The static detection probe 20 switches between the detection position and the avoidance position by rotating, and its specific structure is: the static detection probe 20 is connected to the end of the L-shaped probe swing arm 21, the probe swing arm 21 is driven to rotate by a power device, and the rotation axis of the probe swing arm 21 and the axis of the static detection probe 20 are distributed in the transverse direction. Further, the rear end of the probe swing arm 21 is arranged in the longitudinal direction, and the front end is arranged in the transverse direction.

[0030] The rotation driving structure is as follows: a motor seat 22 is fixed to the front side of the grinding head seat 17, a servo motor 23 is installed on one side of the motor seat 22, the rear end of the probe swing arm 21 is arranged on the other side of the motor seat 22 and is drivingly connected to the motor shaft of the servo motor 23, and the static detection probe 20 is installed on the front end of the probe swing arm 21. Of course, the driving mechanism of the probe swing arm 21 can also use other devices, such as a rotary cylinder 11, etc.

[0031] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A precision detection mechanism for a composite grinding machine, comprising a grinding machine base (1), wherein a fixture worktable (2) capable of longitudinal sliding is arranged on one side of the grinding machine base (1), and an internal grinding tool worktable (3) capable of transverse sliding is arranged on the other side, a workpiece fixture (4) is arranged on the fixture worktable (2), an internal grinding spindle (5) is arranged on the internal grinding tool worktable (3), and an internal grinding wheel (6) is mounted on the internal grinding spindle (5), characterized in that: The fixture workbench (2) is provided with a dynamic detection mechanism, the dynamic detection mechanism comprises a measuring instrument seat (7), a rotating detection pad (8) is rotatably provided on the measuring instrument seat (7), an inner diameter detection device (9) is provided on the rotating detection pad (8), a pair of dynamic detection probes (10) are provided at the end of the inner diameter detection device (9), the dynamic detection probes (10) enter the inner circle of the workpiece as the rotating detection pad (8) rotates, and detects the inner circle size in real time during the inner circle machining.

2. The precision detection mechanism of a compound grinding machine according to claim 1, characterized in that: The driving mechanism of the rotating detection pad (8) is a rotating cylinder (11), the rotating cylinder (11) is fixed above the measuring instrument base (7), one end of the rotating detection pad (8) is fixedly connected to the turntable of the rotating cylinder (11), and the inner diameter detection device (9) is fixedly connected to the other end of the rotating detection pad (8).

3. The precision detection mechanism of a compound grinding machine according to claim 1, characterized in that: The fixture workbench (2) is provided with a transverse adjustment groove (12), and the measuring instrument seat (7) is adjustably slidably arranged in the adjustment groove (12).

4. The precision detection mechanism of a composite grinding machine according to claim 3, characterized in that: The front side of the measuring instrument seat (7) is slidably matched with the fixture workbench (2) via a dovetail structure (13); countersunk holes (14) are provided on the left and right sides of the measuring instrument seat (7); and fasteners for fixing the measuring instrument seat (7) and the adjustment slot (12) are inserted into the countersunk holes (14).

5. The precision detection mechanism of a compound grinding machine according to claim 1, characterized in that: The grinding machine base (1) is provided with a laterally sliding external cylindrical grinding tool worktable (15), the external cylindrical grinding tool worktable (15) is provided with a column (16), a vertically sliding grinding head seat (17) is provided in front of the column (16), an external cylindrical grinding spindle (18) is provided inside the grinding head seat (17), an external cylindrical grinding wheel (19) is mounted on the external cylindrical grinding spindle (18), and a static detection probe (20) for detecting the grinding amount of a workpiece is provided in front of the grinding head seat (17).

6. The precision detection mechanism of a composite grinding machine according to claim 5, characterized in that: The static detection probe (20) is connected to the end of an L-shaped probe swing arm (21), and the probe swing arm (21) is driven to rotate by a power device. The rotation axis of the probe swing arm (21) and the axis of the static detection probe (20) are distributed in the transverse direction.

7. The precision detection mechanism of a composite grinding machine according to claim 6, characterized in that: A motor seat (22) is fixed to the front side of the grinding head seat (17), a servo motor (23) is installed on one side of the motor seat (22), the rear end of the probe swing arm (21) is arranged on the other side of the motor seat (22) and is drivingly connected to the motor shaft of the servo motor (23), and the static detection probe (20) is installed at the front end of the probe swing arm (21).

8. The precision detection mechanism of a composite grinding machine according to claim 5, characterized in that: One or more of the fixture worktable, the inner cylindrical grinding tool worktable and the outer cylindrical grinding tool worktable are driven by a linear motor.

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