CN216781468U

CN216781468U - Measuring device of grinder active measuring instrument using flexible bearing

Info

Publication number: CN216781468U
Application number: CN202220233073.5U
Authority: CN
Inventors: 杨晓韬; 尚迎辉; 王宁飞; 庆志磊
Original assignee: Luoyang Zhongdi Electronic Technology Co ltd
Current assignee: Luoyang Zhongdi Electronic Technology Co ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-06-21
Anticipated expiration: 2032-01-28

Abstract

The utility model belongs to the technical field of grinding machine active measuring devices, and relates to a measuring device of a grinding machine active measuring instrument using a flexible bearing. A fixed mount is fixed in a shell of a measuring device of a grinder active measuring instrument applying a flexible bearing; the front end of the fixed frame is provided with a flexible bearing respectively at the upper part and the lower part in a central symmetry mode; a moving rod is fixed on the end face of the outer side of each flexible bearing; the outer side of the rear end of each moving rod is provided with an electromagnet for adsorbing the moving rod; the two electromagnets are respectively fixed on the upper end surface and the lower end surface of the inner wall of the shell, are parallel to the moving rod and have a gap; the front ends of the two moving rods extend out of the shell and are fixedly provided with measuring rod testers which are in contact with a measuring workpiece; the rear ends of the moving rods are respectively connected with the corresponding displacement sensors. The utility model reduces the maintenance cost and effectively ensures the repeatability precision of the active measuring device.

Description

Measuring device of grinder active measuring instrument using flexible bearing

Technical Field

The utility model belongs to the technical field of grinding machine active measuring devices, and relates to a measuring device of a grinding machine active measuring instrument using a flexible bearing.

Background

The grinding machine active measuring instrument is mainly used for grinding machine machining and measuring a product to be ground; the grinding machine active measuring instrument comprises a measuring device and a control box; when the grinding machine active measuring instrument is used, the measuring device sends a control signal to a machine tool according to a preset signal point, so that the precision and the yield of ground products can be greatly improved; the similar products in the market mostly adopt a plate spring, a leaf spring or a bearing structure to manufacture a lever device, and due to the structural characteristics, the bending rigidity is small, when the device is slightly impacted, the leaf spring easily exceeds the limit deformation, so that the measuring device cannot be used; due to the material characteristics of the spring, the repeatability is poor and the service life is short; the bearing structure has extremely high precision requirement on the bearing, complex assembly process, long consumed time, higher overall cost, large workload during maintenance, disassembly and assembly, and time and labor consumption.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problems, the present invention provides a measuring device of an active measuring instrument of a grinding machine using a flexible bearing.

The utility model adopts the following technical scheme for achieving the purpose:

a measuring device of a grinder active measuring instrument applying a flexible bearing is characterized in that a fixing frame is fixed in a shell of the measuring device; the front end of the fixed frame is provided with a flexible bearing respectively arranged above and below the fixed frame in a centrosymmetric mode; a moving rod is fixed on the end face of the outer side of each flexible bearing; the outer side of the rear end of each moving rod is provided with an electromagnet for adsorbing the moving rod; the two electromagnets are respectively fixed on the upper end surface and the lower end surface of the inner wall of the shell, are parallel to the moving rod and have a gap; the moving rod forms a lever structure taking the flexible bearing as a fulcrum and can swing for +/-1.5 degrees under the action of the electromagnet; the front ends of the two moving rods extend out of the shell and are fixedly provided with measuring rod testers, and the measuring rod testers are contacted with a measuring workpiece; the rear ends of the moving rods are respectively connected with the corresponding displacement sensors; the displacement sensor is fixed on the fixing frame.

The flexible bearing structure is provided with an upper fixing plate, a lower fixing plate, and a flexible element a and a flexible element b which are connected between the upper fixing plate and the lower fixing plate in a cross mode; the flexible element a, the flexible element b, the upper fixing plate and the lower fixing plate form a clamping piece spring flexible bearing.

The flexible element a is in an I-shaped structure.

The flexible element b is a strip-shaped plate.

The flexible bearing structure adopted in the design has a perfect surface, is not influenced by the dynamic effect and the thermal effect of a fluid system, has repeatability reaching the level of sub-Hermitian, and is used for supporting a large-scale precision mechanical part weighing hundreds of pounds, so that the measuring device adopting the flexible bearing structure does not need to worry about the problem that the applied load is easy to damage during active measurement, and has good repeatability and high stability. The lever mechanism adopts a flexible bearing type structure, the moving rod swings along with the flexible bearing, the safety of the active measuring device can be effectively guaranteed in the conventional use range of the flexible bearing, meanwhile, an important part displacement sensor of the active measuring device is protected, the maintenance cost is reduced, the repeated precision of the active measuring device is effectively guaranteed, and the lever mechanism is simple in overall structure, convenient to assemble, simple to maintain, low in cost and long in service life.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of a flexible bearing structure according to the present invention.

FIG. 3 is a schematic view of the connection of the flexible bearing to the moving rod.

FIG. 4 shows the test state of the present invention.

Fig. 5 shows the apparatus of the present invention entering a measuring station untested state.

In the figure: 1. a housing; 2. a flexible bearing; 3. a moving bar; 4. a fixed mount; 5. an electromagnet; 6. a displacement sensor; 7. a measuring rod tester; 8. measuring a workpiece; 9. an upper fixing plate; 10. a flexible element a; 11. a flexible element b; 12. a lower fixing plate; 13. an open slot hole; 14. and (5) reinforcing ribs.

Detailed Description

The utility model is described in detail with reference to the accompanying drawings and specific embodiments;

as shown in fig. 1, the measuring device is characterized in that a fixed frame 4 is fixed inside a shell 1; the flexible bearings 2 are fixed on the fixed frame 4 and are respectively installed up and down correspondingly; the moving rod 3 is fixed on the flexible bearing 2, is correspondingly arranged up and down, and can swing plus or minus 1.5 degrees along with the flexible bearing to form a lever structure taking the flexible bearing as a fulcrum; the tail end parts of the two moving rods 3 are parallel to the moving rods 3 and keep a certain gap, and each moving rod 3 is provided with an electromagnet 5, and the electromagnets 5 are fixed in the shell 1; the front ends of the two moving rods 3 are respectively contacted with a workpiece 8 to be measured through the corresponding measuring rods 7; the rear ends of the moving rods 3 are respectively connected with corresponding displacement sensors; the displacement sensor 6 is fixed on the fixing frame 4, and when the device is used, the displacement sensor 6 is connected with an external control box and converts physical displacement into an electric signal to be transmitted to the control box so as to control the machining amount.

Taking the measurement of the inner diameter as an example, the moving rod 3 forms a lever structure by virtue of the flexible bearing 2 and taking the flexible bearing as a fulcrum, when the measurement device of the grinder active measurement instrument applying the flexible bearing structure provided by the utility model enters a measurement station and does not enter a measurement state, the electromagnet 5 is electrified to work, the moving rod 3 is adsorbed, the front end of the moving rod 3 drives the measuring rod 7 to contract, the device enters a station to be measured, and the measuring rod is in place and has a certain gap with a part to be measured of a workpiece; when the workpiece enters a measuring state, the electromagnet is powered off to release the moving rod 3, the front end of the moving rod 3 drives the measuring rod 7 to be opened, and the measuring rod tester contacts the part to be measured of the workpiece and enters the measuring state; when the size of the workpiece 8 changes, the change is transmitted to the sensor end through the lever structure to drive the displacement sensor to move relatively, the displacement sensor converts the displacement into a corresponding displacement electric signal and transmits the electric signal to the external control box, the external control box transmits the processed signal to the machine tool controller through the field bus, and the machine tool controller performs data analysis and processing to complete the measurement process. The lever mechanism adopts a flexible bearing type structure, so that the repetition precision of the active measuring device can be effectively ensured; the moving rod swings along with the flexible bearing, and by utilizing the excellent performance of the flexible bearing, the safe use of the active measuring device can be effectively ensured, meanwhile, the safety of a displacement sensor which is an important part of the active measuring device can be protected, and the maintenance cost is reduced.

As shown in fig. 2, the flexible bearing structure includes: an upper fixing plate 8, a flexible element a10, a flexible element b11 and a lower fixing plate 12. The flexible element b11 has two pieces, which are shown as crossing on both sides of the flexible element a 10; two ends of the flexible element a10 and the flexible element b11 are respectively arranged in the reserved long grooves in the upper fixing plate and the lower fixing plate and are fixed by gluing; two screw holes are reserved on the surfaces of the upper fixing plate and the lower fixing plate respectively and are used for being connected and installed with a middle moving rod 3 and a fixing frame 4 in a drawing; the upper fixing plate 9 is provided with an opening long hole 13 on the surface, and has the following functions: in fig. 1, the moving rod 3 is added with a reinforcing rib 14 according to specific use conditions, and the open long hole 13 of the upper fixing plate 9 reserves a position for the reinforcing rib 14.

Claims

1. The utility model provides an use measuring device of grinding machine initiative measuring apparatu of flexible bearing which characterized in that: a fixed mount is fixed in a shell of the measuring device; the front end of the fixed frame is provided with a flexible bearing respectively arranged above and below the fixed frame in a centrosymmetric mode; a moving rod is fixed on the end face of the outer side of each flexible bearing; the outer side of the rear end of each moving rod is provided with an electromagnet for adsorbing the moving rod; the two electromagnets are respectively fixed on the upper end surface and the lower end surface of the inner wall of the shell, are parallel to the moving rod and have a gap; the moving rod forms a lever structure taking the flexible bearing as a fulcrum and can swing for +/-1.5 degrees under the action of the electromagnet; the front ends of the two moving rods extend out of the shell, measuring rod testers are fixedly arranged on the front ends of the two moving rods, and the front ends of the two moving rods are in contact with a measuring workpiece through the measuring rod testers; the rear ends of the moving rods are respectively connected with the corresponding displacement sensors; the displacement sensor is fixed on the fixing frame.

2. The measuring device of the active measuring instrument of the grinding machine using the flexible bearing according to claim 1, wherein: the flexible bearing structure is provided with an upper fixing plate, a lower fixing plate, and a flexible element a and a flexible element b which are connected between the upper fixing plate and the lower fixing plate in a cross mode; the flexible element a, the flexible element b, the upper fixing plate and the lower fixing plate form a clamping piece spring flexible bearing.

3. The measuring device of the active measuring instrument of the grinding machine using the flexible bearing according to claim 2, wherein: the flexible element a is in an I-shaped structure.

4. The measuring device of the active measuring instrument of the grinding machine using the flexible bearing according to claim 2, wherein: the flexible element b is a strip-shaped plate.