CN215639356U - Quick detection device of disc and thickness in connecting rod - Google Patents
Quick detection device of disc and thickness in connecting rod Download PDFInfo
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- CN215639356U CN215639356U CN202121892928.7U CN202121892928U CN215639356U CN 215639356 U CN215639356 U CN 215639356U CN 202121892928 U CN202121892928 U CN 202121892928U CN 215639356 U CN215639356 U CN 215639356U
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- connecting rod
- sensor
- thickness
- lever
- contact sensor
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Abstract
The utility model relates to the technical field of rapid measurement of engine connecting rods, in particular to a device for rapidly detecting the inner circular surface and the thickness of a connecting rod, which comprises a working table, and further comprises an end part pressing mechanism, a non-contact sensor, an upper layer sensor and a lower layer sensor, wherein the end part pressing mechanism is used for fixing the large head end of the connecting rod, the non-contact sensor is arranged on the working table at the position corresponding to the two inner circles of the connecting rod, the non-contact sensor rotates in the inner circle of the connecting rod, the upper layer sensor is arranged on the non-contact sensor, a lever measuring head is arranged on the upper layer sensor, and the lower layer sensor is arranged on the working table of the lower layer sensor and is positioned at the lower part of the small head end of the connecting rod. The utility model can acquire more key point data, has more parameters to evaluate the parallelism of the inner circular surface and two holes, can quickly respond to the actual production rhythm and ensure the product quality.
Description
Technical Field
The utility model relates to the technical field of rapid measurement of engine connecting rods, in particular to a device for rapidly detecting the inner circular surface and the thickness of a connecting rod.
Background
In the existing connecting rod batch production, quality control generally adopts regular sampling inspection or traditional off-line inspection. The sampling detection mode adopts three-coordinate equipment for measurement, and the cleaning treatment is needed before sampling and sample-feeding precision measurement of workpieces in consideration of the existence of vibration, oil stain and dust in the machining process of the connecting rod, so that the efficiency is low. The off-line measurement method includes: the type I is that three to four points are uniformly distributed on the circumference of a contact sensor; and in the type II, the sensor tightly clings to the inner wall of the round hole to do 360-degree rotary motion. In the two modes, the sensor needs to be in close contact with a workpiece during measurement, the sampling point is few and the anti-interference capability is weak in the first type measurement method, the contact sensor is easy to scratch the workpiece in the second type measurement method, in addition, the self mechanism characteristics of the contact sensor are not strong in adaptability to the step of the measured surface, the sampling speed of the curved surface is limited, particularly, the avoidance of the inner circular surface oil groove is not flexible enough, and the processing quality of the whole inner circular surface is difficult to evaluate sufficiently and quickly.
SUMMERY OF THE UTILITY MODEL
The utility model provides a device for rapidly detecting the inner circle surface and the thickness of a connecting rod, aiming at solving the problems of high difficulty and low efficiency in detecting the inner circle surface and the thickness of the connecting rod, and the device can acquire more key point data, has more parameters, can evaluate the parallelism of the inner circle surface and two holes, can rapidly respond to the actual production rhythm and ensure the product quality.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a quick detection device of disc and thickness in connecting rod, includes table surface, still includes tip hold-down mechanism, non-contact sensor, upper sensor and lower floor's sensor, tip hold-down mechanism is used for the big head end of fixed connecting rod, and table surface is provided with in two interior round positions that correspond the connecting rod non-contact sensor, non-contact sensor circle internal rotation in the connecting rod, upper sensor sets up on non-contact sensor, is provided with the lever gauge head on the upper sensor, on the sensor table surface of lower floor, lower floor's sensor is located the microcephaly end lower part of connecting rod.
Further, still include lever climbing mechanism, lever climbing mechanism includes mounting bracket, telescoping device, pull rod, set gradually by outer to interior on the mounting bracket non-contact sensor and upper sensor, the top of mounting bracket is articulated the lever gauge head, upper sensor are located the below of lever gauge head, slide on the mounting bracket and set up the pull rod, the pull rod is connected with mounting bracket fixed connection, the other end to telescoping device one end, pull rod upper end sliding connection lever gauge head.
Furthermore, a waist-shaped hole is formed in the middle of the lever measuring head, the waist-shaped hole is obliquely arranged, and a pin shaft penetrating through the waist-shaped hole is arranged at the upper end of the pull rod.
Further, tip hold-down mechanism includes rotatory pressure cylinder, compresses tightly horizontal pole and compression adjustment screw, rotatory pressure cylinder sets up on table surface, compress tightly the horizontal pole setting on rotatory pressure cylinder, the quantity of compression adjustment screw is two, and two adjustable settings of compression adjustment screw are in the both sides of compressing tightly the horizontal pole, and two compression adjustment screws use the horizontal pole center of compressing tightly to set up as symmetry center symmetry.
Furthermore, the working table top is provided with a plurality of positioning blocks in a sliding mode at the position corresponding to the large head end of the connecting rod, the positioning blocks are distributed in a ring shape, and the sliding path of each positioning block is located on the diameter of the ring.
Furthermore, the working table surface is provided with guide rings at positions corresponding to two inner circles of the connecting rod, and the guide rings are positioned on the inner side of the positioning block.
Further, the lower part of table surface is provided with the mount table, correspond non-contact sensor on the mount table and be provided with rotatory module, connect lever climbing mechanism through sharp adjustment module on the rotatory module.
Further, the linear adjustment module comprises a linear slide rail and a slide block, the linear slide rail is arranged on the rotary module, the slide block is connected with the linear slide rail in a sliding mode, and the slide block is provided with the lever jacking mechanism.
Furthermore, the mounting table is liftable, and two rotating modules are connected with the mounting table in a sliding mode.
Through the technical scheme, the utility model has the beneficial effects that:
when the connecting rod is detected, the large head end of the connecting rod is fixed, the non-contact sensor can be lifted to different heights under the driving of the mounting table, the non-contact sensor can rotate in the inner circle of the connecting rod under the driving of the rotating module, and the non-contact sensor can measure distance in the lifting and rotating processes. Under the condition that the measurement CT is not changed, more key point data are collected, more parameters can be used for evaluating the parallelism of the inner circular surface and the two holes, and data support is provided for result evaluation; in addition, compared with a contact sensor, the non-contact sensor is not contacted with the workpiece, and the sampling speed is not limited by the surface steps of the workpiece. The non-contact sensor can quickly respond to the actual production rhythm, and the product quality is guaranteed.
The upper sensor is not directly contacted with the surface of the connecting rod, the lever measuring head is contacted with the surface of the connecting rod, the position change of the lever measuring head is measured by the upper sensor to deduce the data information of the upper surface of the connecting rod, for the big head end of the connecting rod, the data is compared with the height data of the positioning block to obtain the thickness of the big head end, and for the small head end of the connecting rod, the data is compared with the data of the lower sensor to obtain the thickness of the small head end. And the upper sensor can rotate along with the non-contact sensor, and can obtain more data information of the upper end face of the inner circle of the connecting rod, so that data support is provided for evaluating the flatness of the upper end face of the inner circle and the parallelism of the upper end face and the lower end face.
The detection device can be applied to more fields, such as: measuring the inner diameter characteristic and the outer diameter characteristic of the cylinder sleeve; measuring the internal threads of the joint hoop type workpiece; measuring the parallel shaft holes of the shell type workpiece or measuring the relative positions of the holes.
Drawings
FIG. 1 is a schematic structural diagram of a device for rapidly detecting the inner circular surface and thickness of a connecting rod according to the present invention;
FIG. 2 is a second schematic structural diagram of a device for rapidly detecting the inner circular surface and thickness of a connecting rod according to the present invention;
FIG. 3 is one of the schematic structural diagrams of a lever jack mechanism and a non-contact sensor;
FIG. 4 is a second schematic diagram of the structure of the lever jack and the non-contact sensor;
FIG. 5 is a schematic cross-sectional view of a lever jack, a non-contact sensor;
FIG. 6 is a schematic structural view of a positioning block and a guide ring;
fig. 7 is a schematic structural view of the tie rod.
The reference numbers in the drawings are as follows: the device comprises a worktable 1, an end pressing mechanism 2, a rotary pressing cylinder 201, a pressing cross rod 202, a pressing adjusting screw 203, a non-contact sensor 3, an upper sensor 4, a lower sensor 5, a lever measuring head 6, a waist-shaped hole 601, a lever jacking mechanism 7, an installation frame 701, a telescopic device 702, a pull rod 703, a positioning block 8, an installation table 9, a rotary module 10, a hollow frameless motor 1001, a high-precision air-floating rotary table 1002, a high-precision decision-making pair encoder 1003, a linear adjusting module 11, a linear sliding rail 1101, a sliding block 1102, a guide ring 12 and a connecting rod 13.
Detailed Description
The utility model is further described with reference to the following figures and detailed description:
in the description of the present invention, it is to be understood that the terms "front", "rear", "left", "right", "upper", "lower", "lateral", "vertical", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are only used for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 7, the present embodiment provides a device for rapidly detecting an inner circular surface and a thickness of a connecting rod, which includes a working table 1, and further includes an end pressing mechanism 2, a non-contact sensor 3, an upper sensor 4, and a lower sensor 5. The end part pressing mechanism 2 is arranged on the working table surface 1, and the end part pressing mechanism 2 is used for fixing the large head end of the connecting rod; the working table surface 1 is provided with the non-contact sensors 3 at the positions corresponding to the two inner circles of the connecting rod, the non-contact sensors 3 are non-contact distance measuring sensors, and the non-contact sensors 3 rotate in the inner circles of the connecting rod to measure the aperture of the inner circles of the connecting rod; the upper sensor 4 is arranged on the non-contact sensor 3, the lever measuring head 6 is arranged on the upper sensor 4, when the thickness or the flatness is detected, the lever measuring head 6 is in lap joint with the outer end face of the inner circle of the connecting rod, the lower sensor 5 is arranged on the working table face 1 of the lower sensor 5, the lower sensor 5 is located at the lower part of the small end of the connecting rod, the large end of the connecting rod is fixed, the thickness of the large end of the connecting rod can be calculated by measuring the data of the upper end face of the large end, and the small end of the connecting rod is calculated through the data of the upper sensor 4 and the lower sensor 5 to obtain the thickness of the small end.
Further, still include lever climbing mechanism 7, lever climbing mechanism 7 includes mounting bracket 701, telescoping device 702, pull rod 703, set gradually from outer to inner on the mounting bracket 701 non-contact sensor 3 and upper sensor 4, non-contact sensor 3 and upper sensor 4 set up on mounting bracket 701 with embedded, when promoting compact structure, also increase the rigidity of this chunk, and mounting bracket 701's top is articulated lever gauge head 6, upper sensor 4 are located the below of lever gauge head 6, and the both sides of mounting bracket 701 all slide and set up pull rod 703, telescoping device 702 one end and mounting bracket 701 fixed connection, other end connection pull rod 703, pull rod 703 upper end sliding connection lever gauge head 6, the other end of lever gauge head 6 is used for contacting with the terminal surface. The extension or contraction of the telescopic device 70 drives the end of the lever measuring head 6 to extend or retract.
The expansion device 702 is a cylinder in this embodiment.
Furthermore, a waist-shaped hole 601 is formed in the middle of the lever measuring head 6, the waist-shaped hole 601 is obliquely arranged, and a pin shaft penetrating through the waist-shaped hole 601 is arranged at the upper end of the pull rod 703. The pull rod 703 is provided with an oil groove on the inner side, so that lubricating grease can be stored, and sliding fit abrasion is reduced.
The end pressing mechanism 2 comprises a rotary pressing cylinder 201, a pressing cross rod 202 and two pressing adjusting screws 203, the rotary pressing cylinder 201 is arranged on the working table surface 1, the pressing cross rod 202 is arranged on the rotary pressing cylinder 201, the number of the pressing adjusting screws 203 is two, the two pressing adjusting screws 203 are adjustably arranged on two sides of the pressing cross rod 202, and the two pressing adjusting screws 203 are symmetrically arranged by taking the center of the pressing cross rod 202 as a symmetrical center.
The working table top 1 is provided with a plurality of positioning blocks 8 in a sliding mode at positions corresponding to the large ends of the connecting rods, the positioning blocks 8 are distributed in an annular mode, and the sliding paths of the positioning blocks 8 are located on the diameter of the annular mode. The worktable surface 1 is provided with guide rings 12 at two inner circle positions corresponding to the connecting rod, and the guide rings 12 are positioned at the inner side of the positioning block 8. When the connecting rod is placed, the guide ring 12 is used for positioning the inner circle of the connecting rod, so that the connecting rod is convenient to position; in this embodiment, the three positioning blocks 8 are distributed annularly and concentric with the guide ring 12, the three positioning blocks 8 form a plane for supporting the big end of the connecting rod, and are matched with the end pressing mechanism 2 to press and fix the big end of the connecting rod, and the small end of the connecting rod is suspended. And the connecting rods with different inner diameters can be adapted by adjusting the position of the positioning block 8. The guide ring 12 can be replaced with a corresponding diameter when facing connecting rods of different internal diameters.
Further, the lower part of table surface 1 is provided with mount table 9, it is provided with rotatory module 10 to correspond non-contact sensor 3 on the mount table 9, connects lever climbing mechanism through sharp adjustment module 11 on the rotatory module 10, and rotatory module drives lever climbing mechanism, non-contact sensor 3 and upper sensor 4 rotatory. The rotating module 10 comprises a hollow frameless motor 1001, a high-precision air-floating rotary table 1002 and a high-precision alignment encoder 1003, and can realize high-precision rotation with radial jump and end jump smaller than 0.5 micrometer. The hollow frameless motor 1001 is driven to rotate by low magnetic gap disturbance, and meanwhile, the through holes of the whole module can penetrate through an air pipe, an optical fiber, a sensor cable, a controller cable and the like. The formula encoder 1003 is decided to cooperation high accuracy, when the rotation angle guarantees real-time accuracy, can discern current rotational position, passes the object twist-off in avoiding the module through-hole.
Further, the linear adjustment module 11 includes a linear slide 1101 and a slider 1102, the linear slide 1101 is disposed on the rotation module 10, the slider 1102 is slidably connected with the linear slide 1101, and the slider 1102 is provided with the lever jacking mechanism. The position of the slider 1102 can be adjusted according to the aperture of different connecting rods, and the slider can be locked and fixed after being adjusted to a proper position.
Further, the mounting table 9 is liftable, and the lifting of the mounting table 9 drives the non-contact sensor to lift, and the two rotary modules 10 are connected with the mounting table 9 in a sliding manner. For different connecting rods, the center distance between the two holes can be fixed by adjusting the two rotating modules 10. When the adjustment is carried out according to the hole pitch, the positions of the positioning block 8, the guide ring 12 and the lower layer sensor are also adjusted accordingly.
The use process comprises the following steps: the connecting rod is positioned and placed through the guide ring 12, the large end of the connecting rod is placed on the positioning block 8, the small end of the connecting rod is suspended and corresponds to the guide ring 12, the pressing cross rod 202 and the pressing adjusting screw 203 are located above the connecting rod through rotating the pressing air cylinder 201, the pressing adjusting screw 203 is enabled to press the connecting rod, the connecting rod is fixed, and the connecting rod is fixed in the measuring process.
Measuring the inner circular surface action mode:
1. the non-contact sensor rises to a height h1 along the Z direction, and the point measurement is carried out on the section of the inner circle; the non-contact sensor is raised to a height h2 along the Z direction, measured at a point on the inside circle cross section. The number of the selected sections is more than two, and the number of the sections and the section spacing are determined according to the condition of the inner circle and the length of the inner hole. And each measured value is bound with the angle value of the measuring point of the rotating module.
2. Measurement of the inner circular surface: the non-contact sensor starts to move to the highest point along the Z direction from the Z direction lowest point of the inner circular hole, and the non-contact sensor scans or takes a point value in the moving process; the non-contact sensor rotates 90 degrees, moves to the lowest point along the Z direction from the highest point, and scans or takes point values during the moving process; in this way, the reciprocating scanning or point sampling values are respectively completed at 180 degrees and 270 degrees, all measured values are bound with the position values of the Z-direction measuring points, and the angles of 0 degree, 90 degrees, 180 degrees and 270 degrees can be simplified, adjusted and subdivided according to the situation.
The non-contact sensor is driven by the compound motion of the rotating module 10 and the mounting table 9 to complete spiral-like scanning or point collection, and the first two measuring actions can be performed on key positions in the collection process. All the measured values are bound with the Z-direction of the measuring point and the angle value of the rotary table of the rotary module 10.
Thickness measurement action:
the non-contact sensor rises along the Z direction, so that the height of the lever measuring head 6 is higher than the upper end face of the connecting rod, the telescopic device 702 drives the pull rod 703 to descend, the head of the lever measuring head 6 is driven to descend, the head of the lever measuring head 6 is in contact with the upper end face of the connecting rod, the upper-layer sensor detects the height position change of the lever measuring head 6, and the thickness value of the connecting rod is obtained by calculating and comparing with the numerical value of the lower-layer sensor 5. When the non-contact sensor rotates to scan or pick points in an inner circle, the lever measuring head 6 and the upper sensor can measure and pick points on the upper end face, more point data of the upper end face can be collected, and data support is provided for parallelism evaluation of the end face.
The above-described embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the utility model, so that equivalent changes or modifications in the structure, features and principles described in the present invention should be included in the claims of the present invention.
Claims (9)
1. The utility model provides a quick detection device of disc and thickness in connecting rod, includes table surface (1), its characterized in that still includes tip hold-down mechanism (2), non-contact sensor (3), upper sensor (4) and lower floor's sensor (5), tip hold-down mechanism (2) are used for the stub end of fixed connecting rod, and table surface (1) is provided with in two interior round positions that correspond the connecting rod non-contact sensor (3), non-contact sensor (3) are at the interior round internal rotation of connecting rod, upper sensor (4) set up on non-contact sensor (3), are provided with lever gauge head (6) on upper sensor (4), on lower floor's sensor (5) table surface (1), lower floor's sensor (5) are located the microcephaly end lower part of connecting rod.
2. The device for rapidly detecting the inner circular surface and the thickness of the connecting rod according to claim 1, further comprising a lever jacking mechanism (7), wherein the lever jacking mechanism (7) comprises a mounting frame (701), a telescopic device (702) and a pull rod (703), the non-contact sensor (3) and the upper sensor (4) are sequentially arranged on the mounting frame (701) from outside to inside, the top of the mounting frame (701) is hinged to the lever measuring head (6), the upper sensor (4) is located below the lever measuring head (6), the pull rod (703) is slidably arranged on the mounting frame (701), one end of the telescopic device (702) is fixedly connected with the mounting frame (701), the other end of the telescopic device is connected with the pull rod (703), and the upper end of the pull rod (703) is slidably connected with the lever measuring head (6).
3. The device for rapidly detecting the inner circular surface and the thickness of the connecting rod as claimed in claim 2, wherein a kidney-shaped hole (601) is formed in the middle of the lever measuring head (6), the kidney-shaped hole (601) is obliquely arranged, and a pin shaft penetrating through the kidney-shaped hole (601) is arranged at the upper end of the pull rod (703).
4. The device for rapidly detecting the inner circular surface and the thickness of the connecting rod as claimed in claim 1, wherein the end pressing mechanism (2) comprises a rotary pressing cylinder (201), a pressing cross rod (202) and pressing adjusting screws (203), the rotary pressing cylinder (201) is arranged on the workbench surface (1), the pressing cross rod (202) is arranged on the rotary pressing cylinder (201), the number of the pressing adjusting screws (203) is two, the two pressing adjusting screws (203) are adjustably arranged on two sides of the pressing cross rod (202), and the two pressing adjusting screws (203) are symmetrically arranged by taking the center of the pressing cross rod (202) as a symmetry center.
5. The device for rapidly detecting the inner circular surface and the thickness of the connecting rod as claimed in claim 1, wherein the worktable (1) is provided with a plurality of positioning blocks (8) in a sliding manner at positions corresponding to the big head end of the connecting rod, and the plurality of positioning blocks are distributed in a ring shape, and the sliding path of the positioning blocks (8) is on the diameter of the ring shape.
6. The connecting rod inner circle surface and thickness rapid detection device according to claim 5, characterized in that the working table (1) is provided with guide rings (12) at positions corresponding to two inner circle surfaces of the connecting rod, and the guide rings (12) are positioned at the inner side of the positioning block (8).
7. The device for rapidly detecting the inner circular surface and the thickness of the connecting rod as claimed in claim 2, wherein a mounting table (9) is arranged at the lower part of the working table (1), a rotating module (10) is arranged on the mounting table (9) corresponding to the non-contact sensor (3), and a lever jacking mechanism is connected to the rotating module (10) through a linear adjusting module (11).
8. The device for rapidly detecting the inner circular surface and the thickness of the connecting rod according to claim 7, wherein the linear adjustment module (11) comprises a linear slide rail (1101) and a slider (1102), the linear slide rail (1101) is arranged on the rotation module (10), the slider (1102) is slidably connected with the linear slide rail (1101), and the lever jacking mechanism is arranged on the slider (1102).
9. The device for rapidly detecting the inner circular surface and the thickness of the connecting rod as claimed in claim 8, wherein the mounting table (9) is liftable, and the two rotating modules (10) are slidably connected with the mounting table (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121892928.7U CN215639356U (en) | 2021-08-13 | 2021-08-13 | Quick detection device of disc and thickness in connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121892928.7U CN215639356U (en) | 2021-08-13 | 2021-08-13 | Quick detection device of disc and thickness in connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215639356U true CN215639356U (en) | 2022-01-25 |
Family
ID=79897742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121892928.7U Expired - Fee Related CN215639356U (en) | 2021-08-13 | 2021-08-13 | Quick detection device of disc and thickness in connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215639356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551631A (en) * | 2021-08-13 | 2021-10-26 | 郑州金惠计算机系统工程有限公司 | Quick detection device of disc and thickness in connecting rod |
-
2021
- 2021-08-13 CN CN202121892928.7U patent/CN215639356U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551631A (en) * | 2021-08-13 | 2021-10-26 | 郑州金惠计算机系统工程有限公司 | Quick detection device of disc and thickness in connecting rod |
| CN113551631B (en) * | 2021-08-13 | 2025-03-07 | 郑州金惠计算机系统工程有限公司 | A fast detection device for inner circle surface and thickness of connecting rod |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |