Lathe measuring head mechanical deviation error testing device

Abstract

The utility model discloses a lathe measuring head mechanical deviation error testing device which comprises a base, a measuring head motor and a swing arm motor are installed on the base, a grating ruler is arranged on the swing arm motor, an output shaft of the swing arm motor is connected with a swing arm, and the front end of the swing arm extends to the side capable of abutting against a lathe measuring head. And the probe of the lathe probe can be shifted during swinging. Compared with the prior art, the utility model has the advantages that the concentric quality coefficient of the measured lathe measuring head can be obtained by rotating the lathe measuring head to different angles and accumulating errors of multi-wheel touch of the swing arm. The lathe measuring head mechanical deviation error testing device is used for carrying out QC testing on the lathe measuring head before leaving a factory, can greatly reduce shipped defective products, and is reasonable and ingenious in design and convenient and fast to operate.

Description

Technical Field

[0001] The utility model relates to a testing device, in particular to a testing device for mechanical deviation error of a lathe probe. Background Art

[0002] The lathe probe is installed on the CNC machine tool. It can directly measure the size and position of the tool or workpiece without human intervention during processing, and automatically correct the offset of the workpiece or tool according to the measurement results, so as to improve the accuracy of the output parts and improve efficiency. There is a trigger mechanism inside the probe. When the probe needle moves radially or axially under the action of external force, the trigger mechanism is triggered, and the circuit inside the probe sends a trigger signal to the receiver. The receiver transmits the signal to the CNC machine tool to obtain the position coordinates of each axis of the machine tool, and then calculates the required measurement results according to the data of different measurement points. No manual operation is required, which improves work efficiency and reduces manual errors. The probe is a high-precision measuring device. The probe needle + trigger mechanism must be triggered with equal delay for touches from different directions, otherwise there may be inaccurate measurements. However, due to the error of the lathe probe in production and processing (lathe probe assembly), or after long-term use and wear, the internal structure deviation error of the lathe probe is caused, which cannot be detected by the naked eye, and a method or device is needed to scientifically evaluate it. Therefore, the development of a lathe probe mechanical deviation error test device has become a problem to be solved by technicians in this field. Utility Model Content

[0003] The utility model is to solve the above-mentioned drawbacks and provides a lathe probe mechanical deviation error testing device.

[0004] The above-mentioned purpose of the utility model is achieved through the following technical scheme: a lathe probe mechanical deviation error testing device, including a base, on which a probe motor and a swing arm motor are installed, the swing arm motor is provided with a grating scale, the output shaft of the swing arm motor is connected to a swing arm, the front end of the swing arm extends to be able to contact one side of the lathe probe, and can move the probe needle of the lathe probe when swinging.

[0005] Furthermore, the probe motor is provided with a fixing seat or a fixture for fixing the lathe probe.

[0006] Furthermore, the grating ruler is fixed on the output shaft of the swing arm motor.

[0007] Furthermore, the probe motor, swing arm motor and grating ruler are all connected to a controller.

[0008] Furthermore, the controller is provided with a PCB control circuit board and a human-machine setting interface.

[0009] Compared with the prior art, the utility model has the following advantages: the utility model can obtain the quality coefficient of the concentric circle of the lathe probe being tested by rotating the lathe probe to different angles and accumulating the error of multiple rounds of touch of the swing arm. The lathe probe mechanical deviation error testing device of the utility model can be used to perform QC test on the lathe probe before delivery, which can greatly reduce the defective products shipped, and the design is reasonable and ingenious, and the operation is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a control principle diagram of the utility model. DETAILED DESCRIPTION

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] like Figure 1 , Figure 2 As shown, a lathe probe mechanical deviation error testing device comprises a base 1, on which a probe motor 2 and a swing arm motor 3 are mounted, on which a grating ruler 10 is provided, and the grating ruler 10 is fixed on the output shaft of the swing arm motor 3, the probe motor 2, the swing arm motor 3 and the grating ruler are all connected to a controller 7, and the controller is provided with a PCB control circuit board 8 and a human-machine setting interface 9, the probe motor 2 is provided with a fixing seat or a fixture for fixing a lathe probe 4, on which a lathe probe 4 to be tested is fixed, and the output shaft of the swing arm motor 3 is connected to a swing arm 5, and the front end of the swing arm 5 extends to be able to contact one side of the lathe probe 4, and can move the probe needle 6 of the lathe probe 4 when swinging.

[0014] like Figure 1 , Figure 2 As shown, the working principle of the utility model is:

[0015] 1. Install and fix the lathe probe 4 to be tested on the output shaft of the probe motor 2, or fix it on the fixed seat or fixture of the probe motor 2;

[0016] 2. The control circuit issues a command to rotate the probe motor 2, so that the lathe probe 4 rotates to different angles;

[0017] 3. The swing arm motor 3 drives the swing arm 5 to swing, so that the probe 6 of the lathe probe 4 can touch and leave;

[0018] 4. The touch signal sent by the lathe probe 4 is fed back to the control circuit, and the trigger delay can be read out by comparing the touch signal and the grating signal.

[0019] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A lathe probe mechanical deviation error testing device, comprising a base, characterized in that: The base is equipped with a probe motor and a swing arm motor, the swing arm motor is provided with a grating ruler, the output shaft of the swing arm motor is connected to the swing arm, the front end of the swing arm extends to a position capable of contacting one side of the lathe probe, and the probe needle of the lathe probe can be moved when swinging.

2. A lathe probe mechanical deviation error testing device according to claim 1, characterized in that: The probe motor is provided with a fixing seat or a fixture for fixing the lathe probe.

3. The lathe probe mechanical deviation error testing device according to claim 1, characterized in that: The grating ruler is fixed on the output shaft of the swing arm motor.

4. The lathe probe mechanical deviation error testing device according to claim 1, characterized in that: The probe motor, swing arm motor and grating ruler are all connected to the controller.

5. The lathe probe mechanical deviation error testing device according to claim 4, characterized in that: The controller is provided with a PCB control circuit board and a human-machine setting interface.

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