Feeding device for bearing inner rings in an on-line measuring apparatus

Abstract

The utility model discloses a bearing inner race on -line measuring equipment's feeding device, it includes, first conveying assembly, lifting device, feed guide, discharge guide, second conveying assembly and controller, and the top fixed mounting first baffle lever and first air cylinder in first conveying assembly one end, the one side of lifting device is equipped with first adjusting plate, and first adjusting plate is connected with lifting device through first adjusting component, and the second adjusting plate is slidably installed in feed guide, and the second adjusting plate is installed connection with feed guide through second adjusting component, and the third adjusting plate is slidably installed in discharge guide, and the third adjusting plate is installed connection with discharge guide through third adjusting component, and the bottom of third adjusting plate remote lifting device one end is equipped with discharge slide, and the feeding end of second conveying assembly cooperates with discharge slide, and the third baffle lever and second air cylinder are installed in second conveying assembly discharge end. The utility model discloses can realize the automatic feeding of on -line measuring equipment, saves certain manpower, reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of bearing production equipment technology, and in particular to a feeding device for an online measuring device for bearing inner rings. Background Technology

[0002] The bearing inner ring requires multiple grinding processes during manufacturing to form the final product. After machining, the dimensional parameters of the bearing inner ring need to be measured to screen out defective products. Traditionally, workers use measuring tools to measure the bearing inner ring, which is inefficient and lacks accuracy. Modern bearing production lines mostly use online measuring equipment to measure the dimensional parameters of the bearing inner ring. This improves production efficiency and accuracy. However, existing online measuring equipment requires manual feeding by workers, which wastes manpower. Utility Model Content

[0003] The purpose of this utility model is to provide a feeding device for an online measuring equipment for bearing inner rings, which can realize automatic feeding of the online measuring equipment, save manpower, and reduce production costs.

[0004] To achieve the above and other related objectives, this utility model provides a feeding device for an online measuring equipment for bearing inner rings, comprising: a first conveying assembly, a lifting device, a feeding guide groove, a discharging guide groove, a second conveying assembly, and a controller. One end of the first conveying assembly cooperates with the discharging end of the bearing inner ring processing equipment. A first stop bar is fixedly installed on the top of the other end of the first conveying assembly. A first cylinder is provided on the first conveying assembly on one side of the first stop bar. The telescopic end of the first cylinder faces the first stop bar and is fixedly installed with a first push rod. The first push rod cooperates with the first stop bar. A first trigger switch is provided in the middle of the first stop bar. A first... An adjusting plate is provided. The first adjusting plate is installed and connected to the outer frame of the lifting device via a first adjusting assembly. The first adjusting assembly is used to adjust the distance between the first adjusting plate and the conveyor belt of the lifting device. The conveyor belt of the lifting device is provided with a plurality of lifting plates. A feeding hopper is provided at one end of the feeding guide groove. The feeding hopper cooperates with the end of the first stop rod away from the first cylinder. A second adjusting plate is slidably installed in the feeding guide groove along the extension direction of the feeding guide groove. The second adjusting plate is installed and connected to the feeding guide groove via a second adjusting assembly. The second adjusting assembly is used to adjust the distance between the second adjusting plate and the side wall of the feeding guide groove. The end of the feeding guide groove away from the first conveying assembly is connected to the outer frame of the lifting device via a first adjusting assembly. The bottom of an adjusting plate is fitted with the first adjusting plate. A first baffle is provided at the end of the first adjusting plate away from the feed guide chute. The feed guide chute slopes downwards from the side of the first conveying assembly towards the side of the lifting device. One end of the discharge guide chute is fitted with the top of the first adjusting plate. A second baffle is provided at the end of the lifting device away from the discharge guide chute. A third adjusting plate is slidably installed inside the discharge guide chute along its extension direction. The third adjusting plate is connected to the discharge guide chute via a third adjusting assembly. The third adjusting assembly is used to adjust the distance between the third adjusting plate and the side wall of the discharge guide chute. A discharge slide plate is provided at the bottom of the third adjusting plate at the end away from the lifting device. The discharge slide plate is located away from the lifting device. A discharge baffle is provided on one side of the device, and the discharge guide chute slopes downward from the lifting device side toward the discharge baffle side; the feed end of the second conveying component cooperates with the discharge slide plate, a second stop rod is fixedly installed on the top of the outer frame of the second conveying component away from the discharge slide plate, a third stop rod is fixedly installed on the top of the outer frame of the discharge end of the second conveying component, a second cylinder is provided on the outer frame of the discharge end of the second conveying component facing the discharge guide chute, the telescopic end of the second cylinder faces the third stop rod and a second push rod is fixedly installed, the second push rod cooperates with the third stop rod, a second trigger switch is provided in the middle of the third stop rod, and the discharge end of the second conveying component cooperates with the feed port of the online measuring equipment;The controller is electrically connected to the first conveying component, the first cylinder, the first trigger switch, the lifting device, the second conveying component, the second cylinder, and the second trigger switch, respectively.

[0005] In one example of the feeding device of the bearing inner ring online measuring equipment of this utility model, the first stop bar has a first arc-shaped groove in the middle of the surface facing the first cylinder, and the first trigger switch is located in the middle of the first arc-shaped groove.

[0006] In one example of the feeding device of the online bearing inner ring measuring equipment of this utility model, the third stop bar has a second arc-shaped groove in the middle of the surface facing the second cylinder, and the second trigger switch is located in the middle of the second arc-shaped groove.

[0007] In one example of the feeding device of the bearing inner ring online measuring equipment of this utility model, the first adjusting component includes a plurality of adjusting frames. The plurality of adjusting frames are fixedly installed on the outer frame of the lifting device by bolts. Each adjusting frame is threadedly connected to an adjusting screw at the middle of the side wall away from the lifting device. One end of the adjusting screw is rotatably connected to the first adjusting plate.

[0008] In one example of the feeding device of the online bearing inner ring measuring equipment of this utility model, the outer frame of the lifting device is fixedly connected to the first support through several connecting plates.

[0009] In one example of the feeding device of the bearing inner ring online measuring equipment of this utility model, a second bracket is fixedly installed at the bottom of the feeding guide groove, the second adjustment component includes a second adjustment seat disposed on the outer wall of the feeding guide groove, a second adjustment bolt is threadedly connected to the top of the second adjustment seat, a second sliding plate is provided on the outer wall of the second adjustment plate, a second sliding groove is provided on the second sliding plate, and the second adjustment bolt passes through the second sliding groove.

[0010] In one example of the feeding device of the online bearing inner ring measuring equipment of this utility model, the bottom of the feeding hopper is inclined downward on the side of the second adjusting plate.

[0011] In one example of the feeding device of the bearing inner ring online measuring equipment of this utility model, a third bracket is fixedly installed at the bottom of the discharge guide groove, and the third adjustment component includes a plurality of third adjustment seats disposed on the outer wall of the discharge guide groove. A third adjustment bolt is threaded to the top of each third adjustment seat. A plurality of third sliding plates are provided on the outer wall of the third adjustment plate, and a third sliding groove is provided on each third sliding plate. The plurality of third adjustment bolts are respectively inserted into the plurality of third sliding grooves.

[0012] In one example of the feeding device of the online bearing inner ring measuring equipment of this utility model, the lifting plate is composed of two straight plates, the included angle formed by the two straight plates is 150 to 160°, and the opening of the included angle formed by the two straight plates is upward.

[0013] The first conveying component of the feeding device of the online bearing inner ring measuring equipment of this utility model is used to convey the bearing inner ring processed by the bearing inner ring processing equipment to the feeding guide groove. When the bearing inner ring runs to the first stop, the bearing inner ring will stop at the first stop and trigger the first trigger switch. The controller controls the extension end of the first cylinder to drive the first push rod to push the bearing inner ring into the feeding hopper. The bearing inner ring enters the lifting device along the feeding guide groove. The lifting plate drives the bearing inner ring to rise to the discharge guide groove. Under the action of the second baffle, the bearing inner ring enters the discharge guide groove and moves along the discharge guide groove to the discharge slide plate. Then the bearing inner ring slides down along the discharge slide plate to the second conveying component. After being blocked by the second stop, it runs along the second conveying component to the third stop and triggers the second trigger switch. Then the controller controls the extension end of the second cylinder to drive the second push rod to push the bearing inner ring into the feeding port of the online measuring equipment. This invention enables automatic feeding of online measuring equipment, saving manpower and reducing production costs. The widths of the feed guide chute, discharge guide chute, and first adjusting plate are adjustable, which improves the applicability of this invention. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the feeding device of the bearing inner ring online measuring equipment of this utility model; Figure 2 This is a schematic diagram of the lifting device, the feeding guide groove, and the discharging guide groove in one embodiment of the online measuring device for bearing inner rings of this utility model. Figure 3 This is a schematic diagram of the lifting device in one embodiment of the feeding device of the bearing inner ring online measuring equipment of this utility model; Figure 4 This is a schematic diagram of the structure of the first conveying component and the feeding guide groove in one embodiment of the online measuring device for bearing inner rings of this utility model; Figure 5 This is a schematic diagram of the structure of the discharge guide groove and the second conveying component in one embodiment of the online measuring device for the bearing inner ring of this utility model.

[0015] Component designation: 100 First conveying assembly; 110 First stop bar; 111 First trigger switch; 120 First cylinder; 121 First push rod; 200 Lifting device; 210 First adjusting plate; 211 First baffle; 220 First adjusting assembly; 221 Adjusting frame; 222 Adjusting screw; 230 Lifting plate; 240 First support; 241 Connecting plate; 250 Second baffle; 300 Feed guide chute; 310 Feed hopper; 320 Second adjusting plate; 330 Second adjusting assembly; 331 Second adjusting seat; 332 Second adjusting bolt; 333 Second sliding plate; 340 Second bracket; 400 Discharge guide chute; 410 Third adjusting plate; 420 Third adjusting assembly; 421 Third adjusting seat; 422 Third adjusting bolt; 423 Third sliding plate; 430 Discharge sliding plate; 440 Discharge baffle; 450 Third bracket; 500 Second conveying assembly; 510 Second stop bar; 520 Third stop bar; 521 Second trigger switch; 530 Second cylinder; 531 Second push rod. Detailed Implementation

[0016] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0017] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0018] Please see Figures 1 to 5This utility model provides a feeding device for an online measuring equipment for bearing inner rings, comprising: a first conveying assembly 100, a lifting device 200, a feeding guide 300, a discharging guide 400, a second conveying assembly 500, and a controller. One end of the first conveying assembly 100 is engaged with the discharging end of the bearing inner ring processing equipment. A first stop bar 110 is fixedly installed on the top of the other end of the first conveying assembly 100. A first cylinder 120 is provided on the first conveying assembly 100 on one side of the first stop bar 110. The telescopic end of the first cylinder 120 faces the first stop bar 110 and a first push rod 121 is fixedly installed thereon. The first push rod 121 engages with the first stop bar 110. A first trigger switch 111 is provided in the middle of the first stop bar 110. A first adjusting plate 210 is provided on one side of the lifting device 200 along the extending direction of the lifting device 200. The first adjusting plate 210 is installed and connected to the outer frame of the lifting device 200 through a first adjusting component 220. The first adjusting component 220 is used to adjust the distance between the first adjusting plate 210 and the conveyor belt of the lifting device 200. A plurality of lifting plates 230 are provided on the conveyor belt of the lifting device 200. One end of the feeding guide 300 is provided with a feeding hopper 310, which cooperates with the end of the first stop rod 110 away from the first cylinder 120. A second adjusting plate 320 is slidably installed inside the feeding guide 300 along the extending direction of the feeding guide 300. The second adjusting plate 320 is installed and connected to the feeding guide 300 through a second adjusting component 330. The second adjusting component 330 is used to adjust the distance between the second adjusting plate 320 and the side wall of the feeding guide 300. The end of the feeding guide 300 away from the first conveying component 100 cooperates with the bottom of the first adjusting plate 210. The end of the first adjusting plate 210 away from the feeding guide 300 is provided with a first baffle 211. The feeding guide 300 is inclined downward from the side of the first conveying component 100 towards the side of the lifting device 200. One end of the discharge guide 400 is engaged with the top of the first adjusting plate 210. The lifting device 200 is provided with a second baffle 250 at the end away from the discharge guide 400. A third adjusting plate 410 is slidably installed inside the discharge guide 400 along its extension direction. The third adjusting plate 410 is connected to the discharge guide 400 via a third adjusting assembly 420. The third adjusting assembly 420 is used to adjust the distance between the third adjusting plate 410 and the side wall of the discharge guide 400. A discharge slide plate 430 is provided at the bottom of the end of the third adjusting plate 410 away from the lifting device 200. A discharge baffle 440 is provided on the side of the discharge slide plate 430 away from the lifting device 200. The discharge guide 400 is inclined downward from the lifting device 200 side towards the discharge baffle 440 side.The feeding end of the second conveying assembly 500 cooperates with the discharge slide plate 430. A second stop bar 510 is fixedly installed on the top of the outer frame of the second conveying assembly 500 on the side away from the discharge slide plate 430. A third stop bar 520 is fixedly installed on the top of the outer frame of the discharge end of the second conveying assembly 500. A second cylinder 530 is provided on the outer frame of the discharge end of the second conveying assembly 500 facing the discharge guide 400. The telescopic end of the second cylinder 530 faces the third stop bar 520 and is fixedly installed with a second push rod 531. The second push rod 531 cooperates with the third stop bar 520. A second trigger switch 521 is provided in the middle of the third stop bar 520. The discharge end of the second conveying assembly 500 cooperates with the feeding port of the online measuring device. The controller is electrically connected to the first conveying assembly 100, the first cylinder 120, the first trigger switch 111, the lifting device 200, the second conveying assembly 500, the second cylinder 530, and the second trigger switch 521.

[0019] The first conveying component 100 of this utility model is used to convey the bearing inner ring processed by the bearing inner ring processing equipment to the feeding guide groove 300. When the bearing inner ring runs to the first stop 110, the bearing inner ring will stop at the first stop 110 and trigger the first trigger switch 111. Then the controller controls the extension end of the first cylinder 120 to drive the first push rod 121 to push the bearing inner ring into the feeding hopper 310. The bearing inner ring will slide into the feeding guide groove 300 along the bottom surface of the feeding hopper 310, and then enter the lifting device 200 along the feeding guide groove 300. Under the obstruction of the first baffle 211, the inner ring of the bearing will remain on the lifting plate 230. The lifting plate 230 will drive the inner ring of the bearing to rise to the discharge guide groove 400. Under the action of the second baffle 250, the inner ring of the bearing will be pushed into the discharge guide groove 400 and move along the discharge guide groove 400 to the discharge slide plate 430. Then the inner ring of the bearing will slide down along the discharge slide plate 430 to the second conveying assembly 500. After being blocked by the second stop bar 510, the inner ring of the bearing will remain at the second stop bar 510, and then move along the second conveying assembly 500 to the third stop bar 520 and trigger the second trigger switch 521. Then the controller controls the extension end of the second cylinder 530 to drive the second push rod 531 to push the inner ring of the bearing into the feed port of the online measuring equipment.

[0020] Please see Figure 4 and Figure 5In one example of the feeding device of the online bearing inner ring measuring equipment of this utility model, the first stop 121 has a first arc-shaped groove in the middle of its surface facing the first cylinder 120, and the first trigger switch 111 is located in the middle of the first arc-shaped groove. The third stop 520 has a second arc-shaped groove in the middle of its surface facing the second cylinder 530, and the second trigger switch 521 is located in the middle of the second arc-shaped groove. The first and second arc-shaped grooves are beneficial for blocking and stopping the bearing inner ring.

[0021] Please see Figures 1 to 3 In one example of the feeding device of the online bearing inner ring measuring equipment of this utility model, the first adjusting component 220 includes a plurality of adjusting frames 221. The plurality of adjusting frames 221 are fixedly installed on the outer frame of the lifting device 200 by bolts. Each adjusting frame 221 has an adjusting screw 222 threadedly connected to the middle of the side wall away from the lifting device 200. One end of the adjusting screw 222 is rotatably connected to the first adjusting plate 210. The outer frame of the lifting device 200 is fixedly connected to the first bracket 240 by a plurality of connecting plates 241. By gradually rotating the plurality of adjusting screws 222, the first adjusting plate 210 can be driven to slide along the plurality of adjusting frames 221, thereby adjusting the distance between the first adjusting plate 210 and the conveyor belt of the lifting device 200.

[0022] Please see Figure 2 and Figure 4 In one example of the feeding device of the bearing inner ring online measuring equipment of this utility model, a second bracket 340 is fixedly installed at the bottom of the feeding guide groove 300. The second adjusting component 330 includes a second adjusting seat 331 disposed on the outer wall of the feeding guide groove 300. A second adjusting bolt 332 is threadedly connected to the top of the second adjusting seat 331. A second sliding plate 333 is provided on the outer wall of the second adjusting plate 320. A second sliding groove is provided on the second sliding plate 333. The second adjusting bolt 332 passes through the second sliding groove. The bottom of the feeding hopper 310 is inclined downward on the side of the second adjusting plate 320. After loosening the second adjusting bolt 332, the second sliding plate 333 is controlled to drive the second adjusting plate 320 to slide, adjusting the distance between the second adjusting plate 320 and the side wall of the feeding guide groove 300. Then, the second adjusting bolt 332 is tightened to fix the second sliding plate 333 on the second adjusting seat, completing the adjustment of the second adjusting plate 320.

[0023] Please see Figure 2 and Figure 5In one example of the feeding device of the bearing inner ring online measuring equipment of this utility model, a third bracket 450 is fixedly installed at the bottom of the discharge guide 400. The third adjustment assembly 420 includes a plurality of third adjustment seats 421 disposed on the outer wall of the discharge guide 400. A third adjustment bolt 422 is threadedly connected to the top of each third adjustment seat 421. A plurality of third sliding plates 423 are provided on the outer wall of the third adjustment plate 410. A third sliding groove is provided on each third sliding plate 423. The plurality of third adjustment bolts 422 are respectively inserted into the plurality of third sliding grooves. The adjustment method of the third adjustment plate 410 is basically the same as that of the second adjustment plate 320, and will not be described in detail here.

[0024] In one example of the feeding device of the bearing inner ring online measuring equipment of this utility model, the lifting plate 230 is composed of two straight plates, the included angle formed by the two straight plates is 150 to 160°, and the opening of the included angle formed by the two straight plates is upward.

[0025] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A feeding device for an online measuring equipment for bearing inner rings, characterized in that, include; A first conveying assembly, one end of which is engaged with the discharge end of the bearing inner ring processing equipment, and a first stop rod is fixedly installed on the top of the other end of the first conveying assembly. A first cylinder is provided on the first conveying assembly on one side of the first stop rod. The telescopic end of the first cylinder faces the first stop rod and a first push rod is fixedly installed thereon. The first push rod is engaged with the first stop rod. A first trigger switch is provided in the middle of the first stop rod. A lifting device is provided on one side along the extending direction of the lifting device. The first adjusting plate is installed and connected to the outer frame of the lifting device through a first adjusting component. The first adjusting component is used to adjust the distance between the first adjusting plate and the conveyor belt of the lifting device. A plurality of lifting plates are provided on the conveyor belt of the lifting device. A feeding guide chute is provided at one end, and the feeding hopper cooperates with the end of the first stop rod away from the first cylinder. A second adjusting plate is slidably installed inside the feeding guide chute along its extension direction. The second adjusting plate is installed and connected to the feeding guide chute through a second adjusting assembly. The second adjusting assembly is used to adjust the distance between the second adjusting plate and the side wall of the feeding guide chute. The end of the feeding guide chute away from the first conveying assembly cooperates with the bottom of the first adjusting plate. A first baffle is provided at the end of the first adjusting plate away from the feeding guide chute. The feeding guide chute is inclined downward from the side of the first conveying assembly towards the side of the lifting device. The discharge guide chute has one end that engages with the top of the first adjusting plate. A second baffle is provided at the end of the lifting device away from the discharge guide chute. A third adjusting plate is slidably installed inside the discharge guide chute along its extension direction. The third adjusting plate is connected to the discharge guide chute via a third adjusting assembly, which is used to adjust the distance between the third adjusting plate and the sidewall of the discharge guide chute. A discharge slide plate is provided at the bottom of the third adjusting plate away from the lifting device. A discharge baffle is provided on the side of the discharge slide plate away from the lifting device. The discharge guide chute slopes downwards from the lifting device side towards the discharge baffle side. The second conveying assembly has an inlet end that cooperates with the outlet slide plate. A second stop bar is fixedly installed on the top of the outer frame of the second conveying assembly on the side away from the outlet slide plate. A third stop bar is fixedly installed on the top of the outer frame of the outlet end of the second conveying assembly. A second cylinder is provided on the outer frame of the outlet end of the second conveying assembly facing the outlet guide groove. The telescopic end of the second cylinder faces the third stop bar and is fixedly installed with a second push rod. The second push rod cooperates with the third stop bar. A second trigger switch is provided in the middle of the third stop bar. The outlet end of the second conveying assembly cooperates with the inlet of the online measuring device. The controller is electrically connected to the first conveying component, the first cylinder, the first trigger switch, the lifting device, the second conveying component, the second cylinder, and the second trigger switch.

2. The feeding device of the online bearing inner ring measuring equipment as described in claim 1, characterized in that, The first stop lever has a first arc-shaped groove in the middle of its surface facing the first cylinder, and the first trigger switch is located in the middle of the first arc-shaped groove.

3. The feeding device of the online bearing inner ring measuring equipment as described in claim 1, characterized in that, The third stop lever has a second arc-shaped groove in the middle of its surface facing the second cylinder, and the second trigger switch is located in the middle of the second arc-shaped groove.

4. The feeding device of the online measuring equipment for bearing inner rings as described in claim 1, characterized in that, The first adjustment assembly includes several adjustment frames, which are fixedly mounted on the outer frame of the lifting device by bolts. Each adjustment frame is threaded with an adjustment screw at the center of the side wall away from the lifting device, and one end of the adjustment screw is rotatably connected to the first adjustment plate.

5. The feeding device of the online bearing inner ring measuring equipment as described in claim 1, characterized in that, The outer frame of the lifting device is fixedly connected to the first support through several connecting plates.

6. The feeding device of the online bearing inner ring measuring equipment as described in claim 1, characterized in that, The bottom of the feed guide chute is fixedly installed with a second bracket. The second adjustment assembly includes a second adjustment seat disposed on the outer wall of the feed guide chute. The top of the second adjustment seat is threadedly connected to a second adjustment bolt. The outer wall of the second adjustment plate is provided with a second sliding plate. The second sliding plate is provided with a second sliding groove. The second adjustment bolt passes through the second sliding groove.

7. The feeding device of the online bearing inner ring measuring equipment as described in claim 1, characterized in that, The bottom of the feed hopper slopes downward toward the side of the second adjusting plate.

8. The feeding device of the online bearing inner ring measuring equipment as described in claim 1, characterized in that, The bottom of the discharge guide chute is fixedly installed with a third bracket. The third adjustment assembly includes a plurality of third adjustment seats disposed on the outer wall of the discharge guide chute. The top of each third adjustment seat is threadedly connected with a third adjustment bolt. The outer wall of the third adjustment plate is provided with a plurality of third sliding plates. Each third sliding plate is provided with a third sliding groove. The plurality of third adjustment bolts are respectively inserted into the plurality of third sliding grooves.

9. The feeding device of the online bearing inner ring measuring equipment as described in claim 1, characterized in that, The lifting plate consists of two straight plates with an included angle of 150 to 160°, and the included angle between the two straight plates opens upward.

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