CN108759655A - Elastic composite cylindrical roller depth cave angle detection instrument - Google Patents

Abstract

The invention relates to an elastic compound cylindrical roller deep hole angle detection tool, which includes a chamfering slope measuring device, an inner diameter measuring device and a controller, and the chamfering slope measuring device is provided with a clamping block, a positioning block, Depth measuring gauge, lifting shaft, sliding block, rotating piece and contact inductive displacement sensor, the positioning block is assembled and installed with the clamping block, the middle part of the positioning block is provided with a lifting channel, and the sliding block is fixed on the lower end of the lifting shaft And it can move up and down in the lifting channel. Compared with the prior art, the invention converts the angle of the conical surface, which is difficult to measure, into a straight-line distance for measurement. The tool has a simple structure and simple operation, and improves the efficiency of measurement or detection.

Description

Elastic Composite Cylindrical Roller Deep Hole Angle Detection Tool

technical field

The invention relates to the technical field of bearing processing and detection, in particular to an elastic composite cylindrical roller deep hole angle detection tool.

Background technique

Elastic compound cylindrical roller is a new type of bearing, its structural feature is to process through holes with different hollowness for ordinary cylindrical rollers, process chamfers (deep holes) of appropriate size at both ends of the hole, and then fill PTFE material to form elastic composite Cylindrical rollers are characterized by filling polytetrafluoroethylene (PTFE) materials in deep hollow hollow rolling bodies to improve the stress concentration and comprehensive performance of bearings. The structure of cylindrical rollers is shown in Figure 1. It is necessary to select a suitable deep Hole angle (inner hole chamfer) α to reduce the edge stress concentration of the bearing and improve the contact fatigue life and load capacity of the elastic composite cylindrical roller. At present, in order to better prepare elastic composite cylindrical rollers, it is usually necessary to detect the deep hole angle of cylindrical rollers with known deep hole angles in the actual application process to identify whether the cylindrical rollers are qualified. Cylindrical rollers need to measure their pocket angles. However, the method used to measure the angle of the cylindrical deep cavity in the prior art is complicated, and the change of the length of the inner chamfer of the bearing rolling body in the axial direction is usually within 3 mm. The common method of measuring the conical hole is cumbersome and inefficient.

Therefore, in view of the existing problems in the prior art, it is particularly important for the present application to provide a tool that can simply and conveniently measure the angle of a cylindrical deep hole or verify the angle of a deep hole.

Contents of the invention

The object of the present invention is to avoid the deficiencies in the prior art and provide a simple and convenient detection tool for measuring the deep hole angle of elastic compound cylindrical rollers.

The object of the present invention is achieved through the following technical solutions:

Elastic composite cylindrical roller deep hole angle detection tool, including a chamfering slope measuring device, an inner diameter measuring device and a controller, the chamfering slope measuring device is equipped with a clamping block, a positioning block, a lifting shaft, a sliding block, and a rotating piece And contact inductive displacement sensor, the positioning block and the clamping block are assembled and installed. The middle part of the positioning block is provided with a lifting channel. The sliding block is fixed on the lower end of the lifting shaft and can move up and down in the lifting channel. The frame is driven up and down by a stepping motor, and the stepping motor is controlled by the controller; one end of the rotating piece is rotatably hinged to the lower part of the sliding block through a rotating shaft. Type inductive displacement sensor, the contact type inductive displacement sensor is connected with the electrical signal of the controller;

The inner diameter measuring device is equipped with a base, a movable clamp, a guide rod, a bearing, a fixed claw, a movable claw, a swimming rod and an inner diameter measuring gauge. One end of the guide rod is fixedly connected with the movable clamp, and the other end passes through the bearing. The guide groove, the fixed claw is vertically fixed on the bottom of the guide groove, the movable claw is fixedly connected with the traveling rod, one end of the traveling rod passes through the through hole of the fixed claw, and the other end passes through the inner diameter measuring gauge to measure the moving distance of the traveling rod, the inner diameter measurement Table data can be passed to the controller.

Preferably, the clamping block is provided with a stopper for fixing the upper end of the measured object, and the stopper is pressed against the measured object during measurement.

Preferably, the clamping block is composed of two L-shaped splints, the two splints are arranged facing each other, and the inner surface of the inward facing block is set as an arc surface.

More preferably, the inner surface of the vertical side wall of the splint is provided with convex strips and grooves, the positioning block is provided with grooves and convex strips corresponding to the convex strips and grooves, and the positioning block and the clamping block are assembled and installed.

Preferably, the stepper motor is a linear stepper motor.

Beneficial effects of the present invention:

The elastic compound cylindrical roller deep hole angle detection tool of the present invention includes a chamfering slope measuring device, an inner diameter measuring device and a controller, one end of the rotating piece is rotatably hinged to the lower part of the sliding block through a rotating shaft, and the rotating shaft is covered There is a torsion spring, and a contact inductive displacement sensor is mounted on the lower surface of the rotating piece. The sliding block is driven up and down by the lifting shaft. When measuring the length of the chamfered inclined surface, the sliding block moves down, and the contact inductive displacement sensor of the rotating piece The sensor goes from not touching the chamfered surface of the deep cavity to fully contacting. As the slider moves down, the contact inductive displacement sensor changes from completely touching the chamfered surface of the deep cavity to leaving no contact. During the whole process, the contact inductive displacement sensor After the straight line slides over the inner surface of the deep hole chamfer, the electric signal is transmitted to the controller, and the controller calculates the inclined length L of the inner surface of the deep hole chamfer through the set algorithm. The inner diameter measuring device is provided with a base, a movable clamp block, a guide rod, a bearing, a fixed claw, a movable claw, a swimming rod and an inner diameter measuring table. The movable clamp block can be moved to use elastic composite cylindrical rollers of different sizes, and the fixed claw is fixed vertically. At the bottom of the guide groove, the movable claw is fixedly connected with the movable rod. One end of the movable rod passes through the through hole of the fixed claw, and the other end passes through the inner diameter measuring gauge to measure the moving distance of the movable rod. When the fixed claw and the movable claw expand simultaneously When the elastic compound cylindrical roller has a cylindrical inner through hole, the value on the inner diameter measuring table at this time is the inner diameter d of the elastic compound cylindrical roller, and the inner diameter measuring table transmits the inner diameter d value to the controller, and the controller combines the known elasticity The outer diameter of the opening of the compound cylindrical roller d', the angle α is calculated using the algorithm cosα=(d'-d)/L and fed back to the operator. Compared with the prior art, for cylindrical rollers whose chamfering angles of deep pockets are unknown, the present invention can quickly and accurately determine the chamfering angles of deep pockets, has simple structure, and is convenient and easy to operate. For a cylindrical roller with a chamfering angle of a deep hole, the angle value detected by the detection tool of the present invention can be compared with the known angle value to quickly know whether the cylindrical roller is qualified. The invention converts the angle of the conical surface which is difficult to measure into a straight-line distance for measurement, the tool has simple structure and simple operation, and the measurement or detection efficiency is improved.

Description of drawings

The present invention will be further described by using the accompanying drawings, but the content in the accompanying drawings does not constitute any limitation to the present invention.

Figure 1 is a schematic diagram of the structure of the tested elastic composite cylindrical roller.

Fig. 2 is a schematic structural diagram of an embodiment of the present invention.

Fig. 3 is a structural schematic diagram of a sliding block, a rotating piece and a contact inductive displacement sensor according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a clamping block according to an embodiment of the present invention.

In Figures 1 to 4 include:

1 Elastic composite cylindrical roller,

2-1 clamping block, 2-2 positioning block, 2-3 lifting channel, 2-4 lifting shaft, 2-5 sliding block, 2-6 rotating piece, 2-7 contact inductive displacement sensor, 2-8 gear block, 2-9 ribs, 2-10 grooves,

3-1 Base, 3-2 Moving Clamp, 3-3 Guide Rod, 3-4 Bearing, 3-5 Guide Groove, 3-6 Fixed Claw, 3-7 Moving Claw, 3-8 Traveling Rod, 3-9 Inside diameter gauge.

Detailed ways

The present invention will be further described in conjunction with the following examples.

Example 1

As shown in Figures 2 to 4, the elastic composite cylindrical roller deep hole angle detection tool of this embodiment includes a chamfering slope measuring device, an inner diameter measuring device and a controller,

The chamfering slope measuring device is provided with a clamping block 2-1, a positioning block 2-2, a lifting shaft 2-4, a sliding block 2-5, a rotating piece 2-6 and a contact inductive displacement sensor 2-7, and the clamping Block 2-1 is provided with a stopper for fixing the upper end of the measured object (elastic composite cylindrical roller 1). During measurement, the stopper is pressed against the measured object to effectively prevent the measured object from shifting. The clamping block 2-1 is composed of two L-shaped splints. The two splints are arranged facing each other, and the inner surface of the inward block is set as an arc surface to better clamp and fix the measured object to prevent the relative displacement from being affected. measurement accuracy. The positioning block 2-2 is assembled and installed with the clamping block 2-1, and the inner surface of the vertical side wall of the splint is provided with a raised bar 2-9 and a groove 2-10, and the positioning block 2-2 is provided with a raised bar 2-10. 9 corresponds to the groove 2-10 and the raised bar 2-9 corresponding to the groove 2-10, the positioning block 2-2 is assembled and installed with the clamping block 2-1, and the distance between the two can be easily adjusted so that different The size of the measured object.

The middle part of the positioning block 2-2 is provided with a lifting channel 2-3, the sliding block 2-5 is fixedly connected to the lower end of the lifting shaft 2-4 and can move up and down in the lifting channel 2-3, and the lifting shaft 2-4 can be lifted and installed The positioning frame is driven up and down by a linear stepping motor, and the stepping motor is controlled by a controller. One end of the rotating piece 2-6 is rotatably hinged to the lower part of the sliding block 2-5 through a rotating shaft, a torsion spring is set on the rotating shaft, and a contact inductive displacement sensor 2-7 is mounted on the lower surface of the rotating piece 2-6. Type inductive displacement sensor 2-7 is connected with controller electrical signal, when measuring the length of chamfering inclined surface, slide block 2-5 moves down, and the contact type inductive displacement sensor 2-7 of rotary plate 2-6 never touches deep From the chamfered surface of the hole to the complete contact, as the sliding block 2-5 moves down, the contact inductive displacement sensor 2-7 goes from completely contacting the chamfered surface of the deep hole to leaving no contact. During the whole process, the contact inductive displacement sensor After the sensors 2-7 slide over the inner surface of the chamfered chamfer in a straight line, the electrical signal is transmitted to the controller, and the controller calculates the inclined length L of the inner surface of the chamfered chamfered deep hole through a set algorithm. The present invention changes the inherent concept, and uses the contact inductive displacement sensor 2-7 as a moving part to measure the length of the chamfer of the deep hole, and has made breakthrough progress, and the sliding block 2-5 defines the lifting channel along the positioning block 2-2 The 2-3 movement ensures that the contact inductive displacement sensor 2-7 moves in the plane on the top of the vertical roller, and the measured L value is more accurate.

The inner diameter measuring device of the present embodiment is provided with base 3-1, movable clamp block 3-2, guide rod 3-3, bearing 3-4, fixed claw 3-6, movable claw 3-7, travel lever 3-8 and Inner diameter measurement table 3-9, one end of the guide rod 3-3 is fixedly connected to the movable clamp block 3-2, the other end passes through the bearing 3-4, the inside of the base 3-1 is provided with a guide groove 3-5, and the fixed claw 3- 6 is vertically fixed on the bottom of the guide groove 3-5, the movable claw 3-7 is fixedly connected with the travel rod 3-8, one end of the travel rod 3-8 passes through the through hole of the fixed claw 3-6, and the other end passes through the inner diameter measurement Table 3-9 is used to measure the moving distance of travel rod 3-8, and the data of inner diameter measurement table 3-9 can be transmitted to the controller. When the fixed claw 3-6 and the movable claw 3-7 expand and support the cylindrical inner through hole of the elastic composite cylindrical roller 1 at the same time, the value on the inner diameter measurement table 3-9 at this time is the inner diameter d of the elastic composite cylindrical roller 1 , Inner diameter measurement Table 3-9 transmits the value of the inner diameter d to the controller, and the controller combines the known outer diameter d' of the opening of the elastic composite cylindrical roller 1, and uses the algorithm cosα=(d'-d)/L to calculate the angle α and feedback to the operator. Compared with the prior art, for cylindrical rollers whose chamfering angles of deep pockets are unknown, the present invention can quickly and accurately determine the chamfering angles of deep pockets, has simple structure, and is convenient and easy to operate. For a cylindrical roller with a chamfering angle of a deep hole, the angle value detected by the detection tool of the present invention can be compared with the known angle value to quickly know whether the cylindrical roller is qualified.

Example 2

The main technical solution of this embodiment is basically the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. The elastic composite cylindrical roller deep hole angle detection tool of the present embodiment includes a clamping block 2-1, a positioning block 2-2, a depth measurement table, a lifting shaft 2-4, a positioning plate and a sliding block 2-5, and the positioning block 2-2 is assembled and installed with the clamping block 2-1, the middle part of the positioning block 2-2 is provided with a lifting channel 2-3, the inner side of the clamping block 2-1 is provided with a baffle plate, and the positioning plate is installed on the baffle plate, The positioning hole is provided with a through hole, the sliding block 2-5 can pass through the through hole, and the sliding block 2-5 is provided with a clip and is covered with a spring, the spring is located between the clip and the through hole, and the sliding block 2-5 is lifted The shaft 2-4 drives the lifting, and the lifting shaft 2-4 is connected with a depth measuring gauge through a transmission mechanism to measure the lifting distance, and the lower end of the sliding block 2-5 is provided with a chamfering block having the same chamfering angle as the deep hole of the roller.

Usually the chamfering angle of the deep hole of the roller is 45°. As shown in Figure 3, the deep hole angle of the rolling element is 45°. The following relationship exists between the conical hole and the height:

H=(D-d)/2

At the initial position, the bottom surface of the sliding block 2-5 and the bottom surface of the stopper and the plane of the roller are in the same translation. When in use, the chamfering block at the lower end of the sliding block 2-5 is pressed into the inner chamfering of the rolling end surface. At this time, the pointer of the measuring table will display the axial displacement H traveled by the measuring slider. According to the value of H on the measuring table and the size of d, the change in diameter of the large end of the chamfer can be accurately displayed, so as to facilitate batch and rapid detection of products.

At the same time, the chamfering block and the sliding block 2-5 are disassembled and installed, and different chamfering blocks are changed according to different rollers.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not limit the scope of protection of the claims. Those skilled in the art should understand with reference to the preferred embodiments, and can modify or equivalently replace the technical solution of the present invention, but it belongs to the same essence and protection scope of the technical solution of the present invention.

Claims (5)

1. elastic composite cylindrical roller depth cave angle detection instrument, it is characterised in that：Include chamfering inclination measurement apparatus, internal diameter Measuring device and controller,

The chamfering inclination measurement apparatus be provided with grip block, locating piece, depth survey table, lifting shaft, sliding shoe, revolving fragment and Contact inductance displacement sensor, locating piece are installed with grip block assembly, and the middle part of locating piece is equipped with liftway, described Sliding shoe be fixed in the lower end of lifting shaft and can the elevating movement in liftway, the lifting shaft liftable is installed on locating rack And driven and lifted by stepper motor, the stepper motor is controlled by the controller and is operated；

One end of the revolving fragment is rotationally articulated with the lower part of sliding shoe by shaft, and torsional spring, the rotation are cased in shaft The lower surface of rotor is pasted with the contact inductance displacement sensor, contact inductance displacement sensor and controller electricity Signal connects；

The inner diameter measuring device is provided with pedestal, mobile fixture block, guide rod, bearing, fixed jaw, moving jaws, tour lever and internal diameter Measurement table, described guide rod one end and mobile fixture block are affixed, and the other end passes through bearing, and the inside of the pedestal offers guiding Slot, the fixed jaw are perpendicularly fixed at the bottom of guide groove, and the moving jaws and the tour lever are affixed, and one end of tour lever passes through admittedly Determine the through-hole of pawl, the other end passes through inner diameter measurement instrument to measure the displacement distance of tour lever, and the data of the inner diameter measurement instrument can pass Pass the controller.

2. elastic composite cylindrical roller depth cave according to claim 1 angle detection instrument, it is characterised in that：The clamping Block is equipped with block for fixing measured object upper end, and when measurement, block is pressed on measured object.

3. elastic composite cylindrical roller depth cave according to claim 1 angle detection instrument, it is characterised in that：The clamping Block is made of the clamping plate of two pieces of L-types, and two clamping plates are oppositely arranged, and the inner surface of block inwardly is set as cambered surface.

4. elastic composite cylindrical roller depth cave according to claim 2 angle detection instrument, it is characterised in that：The clamping plate The medial surface of vertical side wall is equipped with raised line and groove, and the locating piece is equipped with groove corresponding with the raised line and groove and convex Item, locating piece are installed with grip block assembly.

5. elastic composite cylindrical roller depth cave according to claim 1 angle detection instrument, it is characterised in that：The stepping Motor is linear stepping motor.