A laser system probe structure

Abstract

The present invention relates to the technical field of detection probes, and in particular to a laser system probe structure, comprising a uniaxial moving mechanism, a connecting piece, a sensor elastic fixing bracket, a laser sensor and a quick-change laser reflection mechanism, wherein the sensor elastic fixing bracket is connected to the running end of the uniaxial moving mechanism through the connecting piece, the laser sensor is arranged at the elastic clamping end of the sensor elastic fixing bracket, and the quick-change laser reflection mechanism is installed on the detection end of the laser sensor. The present invention can improve the measurement accuracy and application scope of the probe.

Description

Technical Field

[0001] The present invention relates to the technical field of detection probes, and specifically to a laser system probe structure. Background Art

[0002] In the traditional parts processing field, after the parts are processed, they need to be tested for various geometric dimensions and form and position tolerances to ensure that the part parameters are qualified. However, when using a laser system to measure the deep holes, narrow walls, and multiple holes of the cut parts, it is usually difficult to achieve due to the characteristic structure of the workpiece, resulting in low part measurement efficiency, low measurement accuracy, or even the inability to measure. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a laser system probe structure.

[0004] To achieve the above object, the present invention provides the following technical solution: a laser system probe structure, including a single-axis moving mechanism, a connecting piece, a sensor elastic fixing bracket, a laser sensor and a quick-change laser reflection mechanism,

[0005] The sensor elastic fixing bracket is connected to the running end of the single-axis moving mechanism through a connecting piece.

[0006] The laser sensor is arranged at the elastic clamping end of the elastic fixing bracket of the sensor.

[0007] The quick-change laser reflection mechanism is installed on the detection end of the laser sensor.

[0008] Preferably, the sensor elastic fixing bracket includes a fixing tube, at least two slits are evenly opened on the tube wall at one end of the fixing tube to form an elastic fixing plate, the end of the fixing tube without the slit is fixedly connected to the connecting piece, and the laser sensor is snap-fitted on the elastic fixing plate at the slit end of the fixing tube.

[0009] Preferably, a fixing hoop channel is provided on the outer side surface of the fixing pipe corresponding to the gap section, and stirrups are provided in the fixing hoop channel.

[0010] Preferably, at least one fixing hoop channel is provided on the fixing pipe.

[0011] Preferably, a connector is provided on one end of the laser sensor facing the quick-change laser reflection mechanism, the connector is made of magnetic material, and the laser sensor is connected and matched with the quick-change laser reflection mechanism via the connector.

[0012] Preferably, the quick-change laser reflection mechanism includes a base, a prism and a magnet, the magnet is arranged on the upper surface of the base, and the magnet is magnetically matched with the connector, a groove is arranged on the base, and the prism is fixedly arranged in the groove.

[0013] Preferably, a quick-change positioning support guide column is provided on the upper surface of the base, and a guide support hole cooperating with the quick-change positioning support guide column is provided on the lower side end of the connector.

[0014] Preferably, a fixing screw hole is provided on the base corresponding to the slot, and a fixing screw for fixing the prism is provided in the fixing screw hole.

[0015] Preferably, at least two quick-change positioning support guide posts are provided, and the connector is provided with guide support holes whose number is the same as that of the quick-change positioning support guide posts.

[0016] Preferably, the reflection adjustment angle range of the prism is 0°-180°, preferably 90°.

[0017] Compared with the prior art, the present invention has the following beneficial effects: when measuring geometric features such as deep holes, narrow walls, and multiple holes of a cut workpiece, a slender laser sensor bracket is used to insert the laser sensor deep into the feature for measurement.

[0018] The quick-change laser reflection mechanism used in the present invention can change the laser light path to 90° when measuring features such as deep holes. When measuring other features, the quick-change laser reflection mechanism is removed and the laser light path is changed to 0°, thereby further improving the accuracy and flexibility of measurement.

[0019] All the components in the present invention are installed on a single-axis moving mechanism, and the relative position of the laser sensor can be changed by the movement of the mechanism, thereby further increasing the measuring range. The present invention has a wide application range and high measuring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a partial enlarged view of the gap of the fixed pipe of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the quick-change laser reflection mechanism of the present invention;

[0023] Figure 4 It is an exploded view of the quick-change laser reflection mechanism of the present invention.

[0024] In the figure: 1. Single-axis moving mechanism; 2. Connector; 3. Fixed tube; 4. Gap; 5. Fixed hoop channel; 6. Connector; 7. Base; 8. Prism; 9. Magnet; 10. Slot; 11. Quick-change positioning support guide column; 12. Fastening screw hole; 13. Laser sensor; 14. Quick-change laser reflection mechanism. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 The present invention provides a technical solution: a laser system probe structure, including a single-axis moving mechanism 1, a connecting member 2, a sensor elastic fixing bracket, a laser sensor 13 and a quick-change laser reflection mechanism 14,

[0027] The sensor elastic fixing bracket is connected to the running end of the single-axis moving mechanism 1 through the connecting piece 2.

[0028] The laser sensor is arranged at the elastic clamping end of the elastic fixing bracket of the sensor.

[0029] The quick-change laser reflection mechanism is installed on the detection end of the laser sensor.

[0030] The single-axis moving mechanism 1 includes a rotating mechanism or a horizontal moving mechanism 1, such as a rotating motor or a telescopic moving cylinder;

[0031] The laser probe is driven by the single-axis moving mechanism 1 to move to the position where the part needs to be measured to measure the parameters.

[0032] like Figure 2 As shown, the sensor elastic fixing bracket includes a fixing tube 3, at least two slits 4 are evenly opened on the tube wall at one end of the fixing tube 3 to form an elastic fixing sheet, the end of the fixing tube 3 without the slit is fixedly connected to the connecting piece 2, and the laser sensor is clamped on the elastic fixing sheet at the slit end of the fixing tube 3.

[0033] The laser sensor is arranged in the fixing tube 3 , and the laser sensor is clamped by the elastic force of the elastic fixing sheet at the slit of the fixing tube 3 .

[0034] A fixing hoop channel 5 is provided on the outer side of the fixing pipe 3 corresponding to the gap 4. At least one fixing hoop channel 5 is provided on the fixing pipe 3. Stirrups are provided in the fixing hoop channel 5.

[0035] After the laser sensor is clamped and fixed by the fixing pipe 3 , the fixing hoop channel 5 is tightened by the stirrups, so that the laser sensor is fastened to the fixing pipe 3 .

[0036] like Figure 3 and 4As shown, a connector 6 is provided on one end of the laser sensor facing the quick-change laser reflection mechanism, and a positioning pin is provided on one end of the connector to closely fit with the laser sensor. The connector 6 is made of magnetic material (metal material that can be attracted by a magnet), generally made of iron, and the upper surface of the connector is bonded to the light emitting / light receiving end face of the laser sensor by glue, and the laser sensor is connected to the quick-change laser reflection mechanism through the connector.

[0037] The quick-change laser reflection mechanism includes a base 7, a prism 8 and a magnet 9. The magnet 9 is arranged on the upper surface of the base 7, and the magnet 9 is magnetically matched with the connector 6. A groove 10 is arranged on the base 7, and the prism 8 is fixedly arranged in the groove 10.

[0038] In actual use, five fixing holes are evenly arranged on the upper surface of the base 7, a magnet 9 is arranged in each fixing hole, and the magnet 9 is fixed in the corresponding fixing hole by glue. At the same time, the height of the fixing hole is consistent with the thickness of the magnet 9, so that when in use, the base 7 is close to the connector 6, and the base 7 can be connected to the connector 6 by the magnetism of the magnet 9.

[0039] By adding a certain external force between the laser sensor and the quick-change laser reflection mechanism (overcoming the magnetic force), the quick-change laser reflection mechanism can be separated from the laser sensor. The quick-change laser reflection mechanism is connected to the laser sensor connector, and the quick-change laser reflection mechanism is quickly connected to the laser sensor under the action of the magnetic force.

[0040] A quick-change positioning support guide column 11 is provided on the upper surface of the base 7, and a guide support hole cooperating with the quick-change positioning support guide column 11 is provided at the lower side end of the connector 6. At least two quick-change positioning support guide columns 11 are provided, and the connector 6 is provided with guide support holes whose number is the same as that of the quick-change positioning support guide columns 11.

[0041] By providing the quick-change positioning support guide column 11, the connection relationship between the base 7 and the connector 6 can be improved and the position can be limited.

[0042] A fixing screw hole 12 is provided on the base 7 at a position corresponding to the slot 10, and a fixing screw for fixing the prism 8 is provided in the fixing screw hole 12. The reflection adjustment angle of the prism 8 is 0°-180°, preferably 0°, 90° and 180°. The prism in the quick-change laser reflection mechanism changes the optical path of the laser to 90°, and the optical path of the laser is changed to 0° after the quick-change laser reflection mechanism is disengaged;

[0043] The prism 8 can be fixed by a set screw, making it convenient to replace the prism 8;

[0044] At the same time, the quick-change laser reflection mechanism can set two optical paths according to actual needs and the reflection angle of the prism 8. In actual use, the quick-change laser reflection mechanism can be quickly replaced as a whole according to the reflection path requirements of the laser optical path.

[0045] Through this technical solution, when measuring geometric features such as deep holes, narrow walls, and multiple holes of a cut workpiece, the present invention uses a slender laser sensor bracket to insert the laser sensor deep into the feature for measurement. The quick-change laser reflection mechanism used in the present invention can change the optical path of the laser to 90° when measuring features such as deep holes, and change the optical path of the laser to 0° when measuring other features, further improving the accuracy and flexibility of the measurement. All components in the present invention are installed on a single-axis moving mechanism 1, and the relative position of the laser sensor can be changed by moving the mechanism to further increase the measurement range. The present invention has a wide range of applications and high measurement accuracy.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser system probe structure, characterized in that: It includes a single-axis moving mechanism, a connecting piece, a sensor elastic fixing bracket, a laser sensor and a quick-change laser reflection mechanism. The sensor elastic fixing bracket is connected to the running end of the single-axis moving mechanism through a connecting piece. The laser sensor is arranged at the elastic clamping end of the elastic fixing bracket of the sensor. The quick-change laser reflection mechanism is installed on the detection end of the laser sensor; The sensor elastic fixing bracket comprises a fixing tube, at least two slits are evenly formed on the tube wall at one end of the fixing tube to form an elastic fixing sheet, the end of the fixing tube without the slit is fixedly connected to the connecting piece, and the laser sensor is clamped on the elastic fixing sheet at the slit end of the fixing tube; A fixing hoop groove is arranged on the outer side surface of the fixing pipe corresponding to the gap section, and a stirrup is arranged in the fixing hoop groove; The fixing hoop channel is provided with at least one on the fixing pipe; A connector is provided on one end of the laser sensor facing the quick-change laser reflection mechanism. The connector is made of magnetic material. The laser sensor is connected and matched with the quick-change laser reflection mechanism through the connector.

2. A laser system probe structure according to claim 1, characterized in that: The quick-change laser reflection mechanism comprises a base, a prism and a magnet. The magnet is arranged on the upper surface of the base and is magnetically matched with the connector. A slot is arranged on the base and the prism is fixedly arranged in the slot.

3. A laser system probe structure according to claim 2, characterized in that: The upper surface of the base is provided with a quick-change positioning support guide column, and the lower side end of the connector is provided with a guide support hole matched with the quick-change positioning support guide column.

4. A laser system probe structure according to claim 2, characterized in that: A fixing screw hole is arranged on the base corresponding to the slot, and a fixing screw for fixing the prism is arranged in the fixing screw hole.

5. The laser system probe structure according to claim 3, characterized in that: At least two quick-change positioning support guide columns are provided, and the connector is provided with guide support holes having the same number as the quick-change positioning support guide columns.

6. The laser system probe structure according to claim 2, characterized in that: The reflection adjustment angle range of the prism is 0°-180°.

7. The laser system probe structure according to claim 2, characterized in that: The reflection adjustment angle of the prism is 90°.

Images