Detection device

Abstract

The application discloses a detection device, comprising a base, a bearing assembly and a tool bit. The bearing assembly is rotatably arranged on the base, and a containing space for containing a main shaft is arranged above the bearing assembly. The bearing assembly is used for supporting the rotation of the main shaft, and a detection area is arranged on one side of the bearing assembly. The tool bit is configured to be detachably connected to one end of the main shaft on the bearing assembly. The detection area is used for containing the tool bit and the measuring end of a micrometer in the external environment. The main shaft is carried by the bearing assembly, so that the tool bit can be connected to the main shaft in the detection area. When the tool bit contacts the micrometer in the external environment, the main shaft is driven to rotate on the bearing assembly, so that the function of simulating the driving of the main shaft on a machine tool is achieved, so that the micrometer can detect the deflection of the main shaft, and the step of disassembling the main shaft on the machine tool is reduced, and the detection efficiency of the main shaft is improved.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a testing device. Background Technology

[0002] In CNC machining, a spindle is required to connect to the tool head so that the spindle drives the tool head to rotate. When maintaining the spindle, it is necessary to check the spindle runout (i.e., the spindle's perpendicularity). However, each time the spindle runout is checked, the spindle needs to be installed on the CNC machine tool. The difficulty of disassembling and assembling the spindle leads to low efficiency in spindle runout detection. Utility Model Content

[0003] In view of this, this application provides a detection device to solve the problem of low detection efficiency of spindle runout.

[0004] One embodiment of this application provides a testing device, including a base, a support assembly, and a cutting head. The support assembly is rotatably mounted on the base, and a receiving space is provided above the support assembly for accommodating a spindle. The support assembly supports the rotation of the spindle within the receiving space, and a testing area is provided on one side of the extension direction of the rotation axis of the support assembly. The cutting head is configured to be detachably connected to one end of the spindle on the support assembly. The testing area is used to accommodate the cutting head and the measuring end of a micrometer in the external environment. The cutting head is also configured to rotate with the spindle within the testing area and contact the measuring end of the micrometer in the external environment.

[0005] In the above embodiments, the spindle is supported by a support assembly, allowing the cutter head to connect with the spindle in the detection area. The cutter head then contacts an external micrometer, and the spindle is driven to rotate on the support assembly, thus simulating the spindle's transmission function on the machine tool. This enables the micrometer to detect spindle runout, reducing the need for spindle disassembly and assembly on the machine tool and improving spindle detection efficiency.

[0006] In some embodiments, the support assembly includes two sets of support units, which are spaced apart along the extension direction of the rotation axis of the support assembly. Each set of support units includes two rollers spaced apart in the horizontal direction. Each roller is rotatably connected to the base. The accommodating space is located above the middle of the two rollers. Each set of support units has two rollers that support the main shaft within the accommodating space. By having four rollers roll into contact with and support the main shaft, the function of rotating the main shaft is achieved.

[0007] In some embodiments, the base includes a support and two crossbeams. The support has a through slot extending vertically through the support. Each crossbeam extends horizontally, and the two crossbeams are respectively mounted above the through slots. Both ends of each crossbeam are connected to the support. Two rollers of each load-bearing unit are rotatably mounted on the top of one crossbeam. The use of a perforated support helps reduce the material consumption of the base, while the crossbeams support the rollers, thereby enabling the rollers to support the main shaft.

[0008] In some embodiments, the roller is detachably connected to the corresponding crossbeam, and the roller is equipped with a bearing. Each crossbeam has a first receiving groove and a second receiving groove that communicate with each other at its top. The first receiving groove is used to receive a portion of the roller, and the second receiving groove is located on both sides of the corresponding first receiving groove along the rotation axis of the support assembly, and is used to receive the end of the roller's bearing. Each crossbeam also includes an arc-shaped wall, which is the side wall of the second receiving groove, and is used to support the roller's bearing. By accommodating the roller and its bearing in the first and second receiving grooves respectively, the crossbeam supports the rotation of the roller while allowing the roller to be detachably connected to the crossbeam by being placed in the receiving groove, thus facilitating roller replacement.

[0009] In some embodiments, the detection device further includes a positioning block and an unlocking component respectively disposed on the base. The unlocking component and the positioning block are disposed opposite each other on both sides of the receiving space. The unlocking component is disposed on the side of the support component away from the detection area, and the positioning block is located between the detection component and the support component. The positioning block is used to restrict the movement of the spindle from the support component to the detection area. The unlocking component is configured to act on the locking structure of the spindle towards the positioning block, thereby opening the locking structure of the spindle. The unlocking component also removes the force applied to the locking structure of the spindle, so that the locking structure of the spindle locks the tool head. By having the positioning block and the unlocking component act together on the spindle to lock the tool head of different spindles respectively, the effect of detecting different spindles can be achieved.

[0010] In some embodiments, the unlocking assembly includes a push rod and an unlocking driver. The push rod is slidably connected to a base, and the unlocking driver is disposed on the base and drively connected to the push rod. The unlocking driver is configured to drive the push rod to reciprocate along the extension direction of the rotation axis of the supporting assembly, and to cause the push rod to act on the locking structure of the spindle. By driving the push rod to reciprocate and causing it to act on the locking structure of the spindle, the function of unlocking the tool head by simulating the spindle drive of a machine tool is realized.

[0011] In some embodiments, the unlocking actuator includes a motor and a gear. The motor is located on the base, and a rack is provided on one side of the push rod. The motor is connected to the gear, and the gear meshes with the rack of the push rod. The motor drives the gear to rotate, and the gear drives the push rod to move relative to the base via the rack. By driving the gear to rotate with the motor and making the gear engage with the push rod, the movement of the push rod is achieved.

[0012] In some embodiments, the base has at least one cantilever, with both the cantilever and the motor located on the side of the support assembly away from the detection area. The cantilever and the motor are positioned opposite each other on both sides of the base. The cantilever includes a first part and a second part connected together. The first part extends vertically, and the second part extends perpendicularly to the first part. The end of the first part away from the second part is connected to the top of the base, and the second part extends horizontally from the first part towards the motor. The cantilever also includes a slide rail connected to the second part. From bottom to top, the gear, push rod, slide rail, and second part are sequentially distributed, with the push rod slidably connected to the slide rail. By supporting the slide rail with the cantilever, the slide rail and gear are positioned opposite each other on the upper and lower sides of the push rod, thereby allowing the push rod to counteract the upward force exerted by the gear on the push rod under the action of the slide rail, which helps to improve the stability of the push rod's movement.

[0013] In some embodiments, the positioning block is provided with a receiving groove extending through the positioning block along the rotation axis of the supporting assembly. The receiving groove is used to receive a portion of the spindle. By receiving the portion of the spindle through the receiving groove, the cutting head can be connected to the spindle while the positioning block positions the spindle.

[0014] In some embodiments, the detection device further includes a baffle slidably connected to the positioning block. The baffle includes an opposing operating end and a stop end. The stop end is located within a receiving groove and is used to contact the end face of the spindle and restrict the spindle from moving from the support assembly to the detection area. The operating end is used to move the stop end along a direction perpendicular to the rotation axis of the support assembly under external force to adjust the position of the stop end within the receiving groove. In the sliding direction of the baffle, the side of the stop end away from the operating end has an opening for accommodating a portion of the spindle. By adjusting the position of the stop end within the receiving groove, the receiving groove can be opened and closed, thereby facilitating the opening of the receiving groove when placing the spindle and preventing interference between the positioning block and the spindle. Attached Figure Description

[0015] Figure 1 The intention of decomposing the main axis.

[0016] Figure 2 This is a schematic diagram of the detection device according to an embodiment of the present application in its working state when the baffle is open.

[0017] Figure 3This is a schematic diagram of the working state of the detection device according to an embodiment of this application when the baffle is closed.

[0018] Figure 4 This is a side view of the detection device according to an embodiment of the present application in its working state when the cutter head is connected to the spindle.

[0019] Figure 5 for Figure 1 A schematic diagram after removing the cutter head and spindle.

[0020] Figure 6 for Figure 5 An exploded view of the rollers and crossbeams.

[0021] Figure 7 for Figure 5 A schematic diagram of a portion of the structure after being cut along section line VII-VII.

[0022] Explanation of main component symbols 10. Detection device; 11. Base; 111. Bracket; 1111. Through groove; 112. Crossbeam; 1121. First receiving groove; 1122. Second receiving groove; 1123. Arc-shaped wall; 113. Cantilever; 114. First part; 115. Second part; 116. Slide rail; 12. Bearing assembly; 121. Bearing unit; 122. Roller; 1221. Bearing; 13. Cutting head; 131. Cutting handle; 14. Positioning block; 141. Receiving groove; 15. Unlocking assembly; 151. Top rod; 152. Unlocking driver; 1521. Motor; 1522. Gear; 16. Receiving space; 17. Detection area; 18. Baffle; 181. Operating end; 182. Stop end; 183. Opening; 20. Main shaft; 21. Main body; 22. Shaft core; 23. Spring; 24. Ball locking structure. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0024] The terms “first”, “second”, etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implying the quantity, specific order, or primary and secondary relationship of the indicated technical features.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] Some products require a carrier for support during processing, and a cover plate needs to be placed on the carrier. However, when the cover plate is placed on the carrier, the cover plate may not be properly closed due to obstruction from the components on the carrier.

[0027] During maintenance of the spindle 20 of some CNC equipment, it is generally necessary to mount the spindle 20 onto the CNC machine tool, drive the spindle 20 to rotate, and then use a micrometer to check the spindle 20's runout. However, if the check fails, the spindle 20 needs to be disassembled, maintained again, and then reinstalled and checked, repeating this process until the spindle 20 passes the test. However, the disassembly and assembly of the spindle 20 is difficult, resulting in low inspection efficiency. When checking the spindle 20's runout, the micrometer is typically brought into contact with the tool tip on the spindle 20.

[0028] Please see Figure 1 Some spindles 20 include a body 21 and a spindle core 22. The spindle core 22 is inserted into the body 21. The end of the spindle core 22 is provided with a ball locking structure 24. A spring 23 is provided between the spindle core 22 and the body 21. When it is necessary to install the cutter head 13 on the spindle 20, the spindle core 22 is pushed to compress the spring 23 and move, and the gap between the inner side of the body 21 and the ball locking structure 24 is increased, so that the cutter head handle can be inserted into the spindle 20 and located between the ball locking structures 24. Finally, the pushing force of the spindle core 22 is removed so that the spindle core 22 is reset and moved under the action of the spring 23. The side wall of the spindle 20 acts on the ball locking structure 24 so that the ball locking structure 24 clamps the cutter head handle in the radial direction, thereby completing the operation of installing the cutter head 13 on the spindle 20.

[0029] Therefore, one embodiment of this application provides a testing device, including a base, a support assembly, and a cutting head. The support assembly is rotatably mounted on the base, and a receiving space is provided above the support assembly for accommodating a spindle. The support assembly supports the rotation of the spindle within the receiving space, and a testing area is provided on one side of the extension direction of the rotation axis of the support assembly. The cutting head is configured to be detachably connected to one end of the spindle on the support assembly. The testing area is used to accommodate the cutting head and the measuring end of a micrometer in the external environment. The cutting head is also configured to rotate with the spindle within the testing area and contact the measuring end of the micrometer in the external environment.

[0030] In the above embodiments, the spindle is supported by a support assembly, allowing the cutter head to connect with the spindle in the detection area. The cutter head then contacts an external micrometer, and the spindle is driven to rotate on the support assembly, thus simulating the spindle's transmission function on the machine tool. This enables the micrometer to detect spindle runout, reducing the need for spindle disassembly and assembly on the machine tool and improving spindle detection efficiency.

[0031] Some embodiments of this application will now be described with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] Please see Figures 2 to 5 An embodiment of this application provides a detection device 10 including a base 11, a support assembly 12, and a cutting head 13. The support assembly 12 is rotatably mounted on the base 11, and a receiving space 16 is provided above the support assembly 12. A detection area 17 is provided on one side of the extension direction of the rotation axis of the support assembly 12. During operation, the spindle 20 is placed in the receiving space 16 and supported by the support assembly 12, with one end of the spindle 20 facing the detection area 17. The cutting head 13 is then installed on the spindle 20 within the detection area. Finally, the cutting head 13 is brought into contact with a micrometer. The spindle 20 is driven to rotate relative to the base 11 on the support assembly 12 by external force (manual operation or power source), simulating the function of the spindle 20 driving on a machine tool. This allows the micrometer to detect the cutting head 13, thereby realizing the function of detecting the runout of the spindle 20. By rotating the spindle 20 on the support assembly 12, the steps of disassembling and assembling the spindle 20 on the machine tool are reduced, which helps to improve the detection efficiency of the spindle 20.

[0033] It is understandable that the cutter head 13 is a standard part that has passed inspection. In some embodiments, there are multiple cutter heads 13, and the different cutter heads 13 have different sizes, so as to meet the needs of inspecting spindles 20 of different sizes.

[0034] In some embodiments, the direction from the self-supporting component 12 to the receiving space 16 is defined as the positive direction of the Z-axis, which is the direction of gravity vertically upward. The direction from the self-supporting component 12 to the receiving space 16 is defined as the positive direction of the X-axis, and the rotation axis of the supporting component 12 is parallel to the X-axis. The X-axis is perpendicular to the Z-axis.

[0035] In some embodiments, please refer to Figures 4 to 6 The support assembly 12 includes two sets of support units 121, which are spaced apart along the extension direction of the rotation axis of the support assembly 12. Each set of support units 121 includes two rollers 122 spaced apart in the Y-axis direction. Each roller 122 is rotatably connected to the base 11, and the rotation axis of each roller 122 is parallel to the X-axis. The accommodating space 16 is located above the middle of the two rollers 122 in each set of support units 121. Each set of support units 121 has two rollers 122 that support the main shaft 20 within the accommodating space 16. By having four rollers 122 roll in contact with and support the main shaft 20, the main shaft 20 can be supported to rotate while simultaneously being supported to rotate relative to the two rollers extending in the X-axis direction, which helps reduce the consumables of the support assembly 12.

[0036] In other embodiments, the bearing 1221 assembly includes two rollers extending along the X-axis, with the axis of rotation of the rollers parallel to the X-axis. Alternatively, the bearing 1221 assembly includes a bush extending along the X-axis, with the axis of the bush parallel to the X-axis.

[0037] In some embodiments, please refer to Figures 2 to 5 The detection device 10 also includes a positioning block 14 and an unlocking component 15 respectively disposed on the base 11. The unlocking component 15 and the positioning block 14 are disposed opposite each other on both sides of the accommodating space 16 along the X-axis direction. The unlocking component 15 is disposed on the side of the bearing component 12 away from the detection area 17, and the positioning block 14 is located between the detection component and the bearing component 12. During operation, the spindle 20 is placed between the positioning block 14 and the unlocking component 15. The unlocking component 15 is a shaft core 22 that acts on the spindle 20 toward the positioning block 14, so that the shaft core 22 drives the ball locking structure 24 to move relative to the body 21 of the spindle 20, thereby opening the ball locking structure 24. At the same time, the positioning block 14 contacts the body 21 of the spindle 20 and restricts the movement of the body 21 of the spindle 20 from the bearing component 12 to the detection area 17. When the ball locking structure 24 is opened, the handle 131 of the cutter head 13 is inserted into the body 21 of the spindle 20 and positioned between the ball locking structures 24. The unlocking component 15 removes the force on the spindle core 22 of the spindle 20, allowing the core 22 to reset under the reset action of the spring 23, thus locking the cutter head 13 in place by the ball locking structure 24 of the spindle 20. The positioning block 14 and the unlocking component 15 work together on the spindle 20 to lock the cutter head 13 in different spindles, thereby achieving the effect of detecting different spindles 20.

[0038] In some embodiments, please refer to Figure 5 The unlocking assembly 15 includes a push rod 151 and an unlocking driver 152. The push rod 151 is slidably connected to the base 11, and the unlocking driver 152 is located on the base 11 and is drively connected to the push rod 151. During operation, the unlocking driver 152 drives the push rod 151 to reciprocate along the X-axis, causing the push rod 151 to act on the spindle core 22 of the spindle 20, thereby simulating the function of unlocking the tool head 13 by simulating the spindle 20 driving the machine tool. The push rod 151, with its smaller diameter, extends into the body 21 of the spindle 20 and contacts the spindle core 22, which helps improve the accuracy of the unlocking assembly 15 in unlocking the ball locking structure 24 of the spindle 20.

[0039] In some embodiments, please refer to 7. The unlocking actuator 152 includes a motor 1521 and a gear 1522. The motor 1521 is mounted on the base 11. A rack is provided on one side of the push rod 151 perpendicular to the X-axis. The motor 1521 is connected to the gear 1522, and the gear 1522 meshes with the rack of the push rod 151. During operation, the motor 1521 drives the gear 1522 to rotate, and the gear 1522 drives the push rod 151 to move relative to the base 11 through the rack, thereby realizing the function of driving the push rod 151 to move and act on the shaft core 22 of the main shaft 20.

[0040] Understandably, the base 11 is also equipped with a control switch (unmarked) connected to the motor 1521 to control the motor 1521 to perform working states such as forward rotation, reverse rotation or stop.

[0041] In other embodiments, the unlocking driver 152 also includes a power unit that outputs reciprocating force, such as a cylinder, a hydraulic cylinder, or an electric actuator.

[0042] In other embodiments, the unlocking component 15 includes only a power unit that outputs reciprocating force, such as a cylinder, hydraulic cylinder, or electric actuator, and the output end of the power unit directly acts on the shaft core 22 of the main shaft 20.

[0043] In some embodiments, please refer to Figure 5 and Figure 7 The base 11 is provided with at least one cantilever 113. Both the cantilever 113 and the motor 1521 are located on the side of the support assembly 12 away from the detection area 17. The cantilever 113 and the motor 1521 are arranged opposite each other on both sides of the base 11 along the Y-axis. The cantilever 113 includes a first part 114 and a second part 115 connected together. The first part 114 extends along the Z-axis, and the end of the first part 114 away from the second part 115 is connected to the top of the base 11. The second part 115 extends along the Y-axis towards the motor 1521. The cantilever 113 also includes a slide rail 116, which is fixedly connected to the second part 115. From bottom to top, the gear 1522, the push rod 151, the slide rail 116, and the second part 115 are distributed sequentially. The slide rail 116 extends along the X-axis, and the push rod 151 is slidably connected to the slide rail 116 to improve the accuracy of the push rod 151 sliding relative to the base 11 along the X-axis. Furthermore, since gear 1522 exerts an upward force on push rod 151 when it acts on push rod 151, the slide rail 116 is supported by cantilever 113 so that slide rail 116 and gear 1522 are positioned opposite each other on the upper and lower sides of push rod 151. This allows push rod 151 to counteract the upward force exerted by gear 1522 under the action of slide rail 116, which helps to improve the stability of push rod 151 movement driven by gear 1522.

[0044] In some embodiments, there are two cantilever arms 113, which are spaced apart along the X-axis. The two cantilever arms 113 jointly support the slide rail 116 to improve the stability of the slide rail 116.

[0045] In some embodiments, the gear 1522 is located between the motor 1521 and the first portion 114 of the cantilever 113 in the Y-axis direction, so that the push rod 151 is located between the motor 1521 and the first portion 114 of the cantilever 113 in the Y-axis direction. At the same time, the push rod 151 is located between the cantilever 113 and the base 11 in the Z-axis direction. The motor 1521, the cantilever 113 and the base 11 surround the outside of the push rod 151 to protect the push rod 151, thereby reducing the risk of the push rod 151 being scratched by the outside.

[0046] In some embodiments, the positioning block 14 is provided with a receiving groove 141, which extends through the positioning block 14 along the X-axis direction. During operation, the end of the spindle 20 is received by the receiving groove 141, so that while the positioning block 14 positions the spindle 20, the cutting head 13 can pass through the positioning block 14 and connect with the spindle 20.

[0047] In some embodiments, the size of the receiving groove 141 in its cross-section perpendicular to the X-axis is at least larger than the size of the spindle 20 in its cross-section perpendicular to the X-axis, in order to reduce the risk of interference between the spindle 20 and the positioning block 14 when the spindle 20 is placed. Further, please refer to... Figure 2 and Figure 3 The detection device 10 also includes a baffle 18, which is slidably connected to the positioning block 14. The baffle 18 includes an operating end 181 and a stop end 182. The stop end 182 is located in the receiving groove 141, and the operating end 181 extends to the outside of the positioning block 14. The side of the stop end 182 away from the operating end 181 has an opening 183 for accommodating a portion of the spindle 20. When the spindle 20 is placed in front of the receiving space 16, the operating end 181 is manually operated to drive the stop end 182 to move from inside the receiving groove 141 along the Y-axis direction to outside the receiving groove 141, thereby adjusting the opening of the receiving groove 141. This allows the spindle 20 to pass through the receiving groove 141 with a larger cross-section, so that one end of the operating spindle 20 is located inside the receiving groove 141 and extends through the positioning block 14 to the detection area 17. After the spindle 20 is placed in the receiving space 16, the operating end 181 is manually operated to drive the stop end 182 to move back into the receiving groove 141 along the Y-axis direction. The spindle 20 is located in the stop end 182 through the opening 183, so that the stop end 182 contacts the end face of the main body 21 of the spindle 20 and restricts the main body 21 of the spindle 20 from moving from the bearing assembly 12 to the detection area 17, thereby achieving the function of positioning the spindle 20.

[0048] In some embodiments, please refer to 5. The base 11 includes a support 111 and two crossbeams 112. The support 111 has a through groove 1111 that extends through the support 111 in the vertical direction. The two crossbeams 112 are spaced apart along the X-axis, and each crossbeam 112 extends along the Y-axis. The two crossbeams 112 are respectively mounted above the through groove 1111, and both ends of each crossbeam 112 are connected to the support 111. The two rollers 122 of each set of bearing units 121 are rotatably mounted on the top of one crossbeam 112. The arrangement of the hollow support 111 and the crossbeams 112, compared to the base 11 being a solid structure, helps to reduce the material consumption of the base 11. At the same time, the crossbeams 112 support the rollers 122, thereby realizing the function of the rollers 122 supporting the main shaft 20.

[0049] In some embodiments, the roller 122 is detachably connected to the corresponding beam 112 to facilitate the replacement of the worn roller 122.

[0050] In some embodiments, please refer to Figure 6 The roller 122 is equipped with a bearing 1221. Each crossbeam 112 has a first receiving groove 1411121 and a second receiving groove 1411122 that are interconnected at its top. The first receiving groove 1411121 extends along the Y-axis, and the second receiving groove 1411122 is located on both sides of the corresponding first receiving groove 1411121 along the X-axis. Each crossbeam 112 also includes an arc-shaped wall 1123 and a limiting wall 1124, which are the side walls of the second receiving groove 1411122, respectively. During installation, a portion of the roller 122 is placed within the first receiving groove 1411121 to avoid interference between the roller 122 and the crossbeam 112. The end of the bearing 1221 of the roller 122 is placed in the second receiving groove 1411122, so that the arc-shaped wall 1123 supports the bearing 1221 of the roller 122, and at the same time, the limiting wall 1124 limits the bearing 1221 of the roller 122 along the X-axis, thereby achieving the effect of the roller 122 rotating on the crossbeam 112. Furthermore, the first receiving groove 1411121 and the second receiving groove 1411122 on the top of the crossbeam 112 allow the roller 122 to be placed directly on the crossbeam 112, achieving the effect of the crossbeam 112 supporting the rotation of the roller 122. Also, when the roller 122 needs to be replaced, it can be removed directly upwards from the crossbeam 112, which helps to improve the efficiency of roller replacement.

[0051] In other embodiments, the top of the crossbeam 112 is provided with lugs for supporting the rotation of the roller 122.

[0052] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the substantive scope of this application fall within the scope of this application.

Claims

1. A detection device for carrying a spindle for detection, characterized in that, include: Base; A support assembly is rotatably mounted on the base. A receiving space is provided above the support assembly for accommodating the main shaft. The support assembly is used to support the rotation of the main shaft within the receiving space. A detection area is provided on one side of the extension direction of the rotation axis of the support assembly. A cutting head, the cutting head being configured to be detachably connected to one end of the spindle on the carrier assembly; The detection area is used to accommodate the cutter head and the measuring end of a micrometer in the outside. The cutter head is also configured to rotate with the spindle in the detection area and contact the measuring end of the micrometer in the outside.

2. The detection device according to claim 1, characterized in that, The bearing assembly includes two sets of bearing units, which are spaced apart along the extension direction of the rotation axis of the bearing assembly. Each set of bearing units includes two rollers spaced apart in the horizontal direction. Each roller is rotatably connected to the base. The accommodating space is located above the middle of the two rollers. Each set of bearing units has two rollers that support the main shaft within the accommodating space.

3. The detection device according to claim 2, characterized in that, The base includes a support and two crossbeams. The support is provided with a through groove that extends through the support in the vertical direction. Each of the crossbeams extends along the horizontal direction, and two crossbeams are respectively mounted above the through groove. The two ends of each crossbeam are respectively connected to the support. The two rollers of each set of bearing units are rotatably mounted on the top of one of the crossbeams.

4. The detection device according to claim 3, characterized in that, The roller is detachably connected to the corresponding crossbeam, and the roller is equipped with a bearing; Each of the crossbeams is provided with a first receiving groove and a second receiving groove that are interconnected at the top. The first receiving groove is used to receive part of the roller, and the second receiving groove is located on both sides of the corresponding first receiving groove along the extension direction of the rotation axis of the bearing assembly. The second receiving groove is used to receive the end of the bearing of the roller. Each of the crossbeams also includes an arc-shaped wall, which is the side wall of the second receiving groove, and the arc-shaped wall is used to support the bearing of the roller.

5. The detection device according to claim 1, characterized in that, The detection device further includes a positioning block and an unlocking component respectively disposed on the base. The unlocking component and the positioning block are disposed opposite to each other on both sides of the accommodating space. The unlocking component is disposed on the side of the bearing component away from the detection area. The positioning block is located between the detection component and the bearing component. The positioning block is used to restrict the spindle from moving from the bearing component to the detection area. The unlocking component is configured to act toward the locking structure of the spindle towards the positioning block, thereby opening the locking structure of the spindle; The unlocking component also removes the force applied to the locking structure of the spindle, so that the locking structure of the spindle locks the tool head.

6. The detection device according to claim 5, characterized in that, The unlocking assembly includes a push rod and an unlocking driver. The push rod is slidably connected to the base, and the unlocking driver is disposed on the base and drivenly connected to the push rod. The unlocking driver is configured to drive the push rod to reciprocate along the extension direction of the rotation axis of the bearing assembly and to cause the push rod to act on the locking structure of the main shaft.

7. The detection device according to claim 6, characterized in that, The unlocking driver includes a motor and a gear. The motor is located on the base, and a rack is provided on one side of the push rod. The motor is connected to the gear, and the gear meshes with the rack of the push rod. The motor is used to drive the gear to rotate, and the gear drives the push rod to move relative to the base through the rack.

8. The detection device according to claim 7, characterized in that, The base is provided with at least one cantilever. The cantilever and the motor are both located on the side of the bearing component away from the detection area. The cantilever and the motor are arranged opposite to each other on both sides of the base. The cantilever includes a first part and a second part connected to each other. The first part extends in a vertical direction, and the second part extends in a direction perpendicular to the extension direction of the first part. The end of the first part away from the second part is connected to the top of the base, and the second part extends horizontally from the first part toward the motor. The cantilever also includes a slide rail, which is connected to the second part. From bottom to top, the gear, the push rod, the slide rail, and the second part are distributed in sequence, and the push rod is slidably connected to the slide rail.

9. The detection device according to claim 5, characterized in that, The positioning block is provided with a receiving groove, which extends through the positioning block along the rotation axis of the bearing assembly, and the receiving groove is used to receive a portion of the main shaft.

10. The detection device according to claim 9, characterized in that, The detection device further includes a baffle, which is slidably connected to the positioning block. The baffle includes an operating end and a stop end, which are located in the receiving groove. The stop end is used to contact the end face of the spindle and restrict the spindle from moving from the bearing assembly to the detection area. The operating end is used to move the stop end along a direction perpendicular to the rotation axis of the bearing component under the influence of external force, so as to adjust the position of the stop end in the receiving groove. In the sliding direction of the baffle, the stop end has an opening on the side away from the operating end, and the opening is used to accommodate a portion of the spindle.

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