CN219368695U

CN219368695U - Error proofing device for multiple types of holes of workpiece

Info

Publication number: CN219368695U
Application number: CN202320579477.4U
Authority: CN
Inventors: 管俊意
Original assignee: Shanghai Daohong Automotive Equipment Co ltd
Current assignee: Shanghai Daohong Automotive Equipment Co ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-07-18
Anticipated expiration: 2033-03-23

Abstract

The utility model relates to the technical field of machine manufacturing, in particular to a multi-type hole error proofing device for a workpiece. The sensor unit and the position detection unit are fixed to a holder, with which they are connected to the production line equipment. One end of the adjustment measuring unit is connected to the position detecting unit, and the other end of the adjustment measuring unit contacts the workpiece. The error-proofing device for the multiple types of holes of the workpiece has the advantages of simple structure and small volume, and can effectively prevent the workpiece loss caused by the installation error in a limited space. The device can be used repeatedly, the risk caused by mounting errors can be avoided, the manual detection operation is omitted, the device is simpler and more convenient to use, the maintenance cost is avoided, and the device is convenient to mount.

Description

Error proofing device for multiple types of holes of workpiece

Technical Field

The utility model relates to the technical field of mechanical manufacturing, in particular to a multi-type hole error proofing device for a workpiece.

Background

At present, under the update of the automobile industry, diversified situations appear in automobile workpieces, and in modern production lines, automatic equipment replaces manpower, and electronic equipment is often required to replace manpower to detect the workpieces. However, the conventional intelligent self-checking equipment has high manufacturing cost, which often cannot meet the expectations of designers, or causes the structure to become more cumbersome and cumbersome.

Disclosure of Invention

The utility model aims to provide a multi-type hole error proofing device for workpieces, which mainly solves the technical problems in the prior art, is small in size and convenient to install, cannot damage the workpieces, and can be stably used for a long time without maintenance.

The utility model provides a multi-type hole error proofing device for a workpiece, which is characterized by comprising a support, a sensing unit, a position detection unit and an adjustment measurement unit; the sensing unit and the position detection unit are fixed to the support, and are connected to production line equipment by the support; one end of the adjustment measuring unit is connected to the position detecting unit, and the other end of the adjustment measuring unit contacts a workpiece.

Further, the support comprises an L-shaped support and a T-shaped vertical plate which are connected with each other; one arm of the L-shaped support is connected to one end of a cross arm of the T-shaped vertical plate, and the other arm is fixed to the production line equipment; the sensing unit is connected to the T-shaped riser cross arm, and the position detection unit is connected to the T-shaped riser cross arm.

Further, the sensing unit comprises a high-level sensing unit and a low-level sensing unit; the high-level sensing unit and the low-level sensing unit are arranged on the support in a relative and staggered manner; the low-level sensing unit is positioned below the high-level sensing unit.

Further, the high-level sensing unit comprises a high-level sensor bracket and a high-level sensor; the high-level sensor bracket is fixed on the support; a long waist hole is formed in the high-level sensor bracket; the high-level sensor is fixed on the high-level sensor bracket through the long waist hole.

Further, the low-level sensing unit comprises a low-level sensor bracket and a low-level sensor; the low-level sensor bracket is fixed on the support; a long waist hole is formed in the low-level sensor bracket; the low-level sensor is fixed on the low-level sensor bracket through the long waist hole.

Further, the position detection unit comprises a contour bolt and a linear bearing; the linear bearing is fixed on the support; the contour bolt is inserted into the linear bearing and moves along the limiting direction of the linear bearing.

Further, the position detection unit further comprises a linear bearing protection cover; the linear bearing protection cover is fixed on the support and sleeved outside the linear bearing; the tail of the equal-height bolt contacts the linear bearing protection cover.

Further, a bushing is provided between the linear bearing and the contour bolt.

Further, the adjustment measurement unit comprises a spring, a locating pin head and a gasket; the two ends of the spring are respectively connected with the positioning pin head and the gasket; the pad is connected to the position detection unit; the dowel head contacts the workpiece.

Further, the adjustment measuring unit further comprises a spring protection cover; the spring protection cover is fixed on the support and sleeved outside the spring.

The error-proofing device for the multiple types of holes of the workpiece has the advantages of simple structure and small volume, and can effectively prevent the workpiece loss caused by the installation error in a limited space. The device can be used repeatedly, the risk caused by mounting errors can be avoided, the manual detection operation is omitted, the device is simpler and more convenient to use, the maintenance cost is avoided, and the device is convenient to mount.

Drawings

FIG. 1 is a schematic view of a multi-type hole fault protection device for workpieces according to a preferred embodiment of the utility model;

FIG. 2 is a schematic illustration of the installation of bushings in linear bearings in a preferred embodiment of a multi-type hole fault protection device for a workpiece in accordance with the present utility model;

FIG. 3 is a schematic diagram illustrating the operation of a multi-type hole-in-hole apparatus according to one embodiment of the present utility model.

The device comprises a 1-L-shaped support, a 2-T-shaped vertical plate, a 3-high-position sensor support, a 4-high-position sensor, a 5-low-position sensor support, a 6-low-position sensor, a 7-equal-height bolt, an 8-linear bearing protection cover, a 9-linear bearing, a 10-spring, an 11-spring protection cover, a 12-positioning pin head, a 13-gasket and a 14-bushing.

Description of the embodiments

Specific embodiments of the present utility model will be described below with reference to the accompanying drawings.

Examples

Referring to fig. 1 and 2, the present utility model discloses a multi-type hole error proofing device for a workpiece, and a preferred embodiment of the device is composed of a support, a sensing unit, a position detecting unit and an adjustment measuring unit.

The multi-type hole error proofing device for the workpiece is mounted on production line equipment through a support. The support comprises an L-shaped support 1 and a T-shaped riser 2 connected to each other. The L-shaped support 1 is used for connecting the T-shaped riser 2 to the production line equipment, i.e. one arm of the L-shaped support is bolted to the production line equipment and the other arm of the L-shaped support is bolted to one end of a cross arm of the T-shaped riser 2. In this way, when dealing with different workpieces or different production line equipment, the angle between the L-shaped support 1 and the T-shaped riser 2 and the L-shaped support 1 can be adjusted by re-tightening the bolts so that the locating pin head 12 in the adjustment measuring unit is always aligned with the hole to be measured in the workpiece.

The sensing unit comprises a high-order sensing unit and a low-order sensing unit. The high-level sensing unit is used for monitoring the abnormal upper limit position of the high bolt 7 in the position detection unit, and the high-level sensing unit is used for monitoring the normal position of the high bolt 7 in the position detection unit. The high-level sensing unit and the low-level sensing unit are respectively arranged at two sides of the cross arm of the T-shaped vertical plate 2, and are oppositely arranged at two sides of the equal-height bolt 7 in the position detection unit, but are staggered at the high and low positions. The low-order sensing unit is positioned below the high-order sensing unit.

Specifically, at the one end of the horizontal arm of T-shaped riser 2, fix high-order sensor support 3 with the bolt, set up long waist hole on high-order sensor support 3, install high-order sensor 4 through long waist hole to make high-order sensor 4 can carry out the upper and lower regulation along with the requirement of being tested hole. The other end of the cross arm of the T-shaped vertical plate 2 is fixed with a low-level sensor bracket 5 by bolts, a long waist hole is formed in the upper surface of the low-level sensor bracket 5, and a low-level sensor 6 is installed through the long waist hole, so that the low-level sensor 6 can be adjusted up and down along with the requirement of a tested hole.

The position detection unit comprises a contour bolt 7, a linear bearing protection cover 8 and a linear bearing 9. On the vertical arm of the T-shaped vertical plate 2, a linear bearing protection cover 8 and a linear bearing 9 are fixed, and the equal-height bolt 7 is inserted into the linear bearing 9 to move up and down in the direction limited by the linear bearing 9. A bushing 14 is provided between the linear bearing 9 and the contour bolt 7 to reduce the problem of the gap increase caused by the loss during the movement of the contour bolt 7. The linear bearing protection cover 8 is sleeved outside the linear bearing 9 and is used for preventing welding slag from falling into the linear bearing 9. The tail of the contour bolt 7 contacts the linear bearing protection cover 8, and the initial position of the contour bolt 7 is limited and determined.

The adjustment measuring unit is arranged below the position detecting unit and directly contacts with a workpiece, and comprises a spring 10, a spring protection cover 11, a positioning pin head 12 and a gasket 13. The gasket 13 is contacted with the lower part of the equal-height bolt 7, and the spring 10 is assembled between the gasket 13 and the locating pin head 12, namely, two ends of the spring 10 are respectively connected with the locating pin head 12 and the gasket 13. When the dowel head 12 contacts the workpiece, if there is a hole in the surface of the workpiece, the dowel head 12 enters the hole under the action of the spring 10, if there is no hole in the surface of the workpiece, the spring is compressed back up and then transferred to the contour bolt 7, so that the contour bolt 7 rises. The spring protection cover 11 is sleeved outside the spring, so that welding slag and dust can not fall into the spring (10) and the service life of the spring is prolonged. The spring protection cover 11 is fixed to the standing arm of the T-shaped standing plate 2.

Referring to fig. 3, a preferred embodiment of a multi-type hole error proofing device for workpieces according to the present utility model is used for detecting whether a current workpiece is a correct workpiece to be processed before formal processing (e.g. before welding), and preventing the workpiece from being processed by mistake in combination with production line equipment, so as to avoid workpiece installation errors caused by mess and unordered workpieces during installation of constructors. The concrete working mode is as follows:

step S1, the device is installed and fixed according to the relative positions of production line equipment and workpieces.

And S2, positioning the workpiece, and starting detection. The device is driven by production line equipment, and the front end of the positioning pin head 12 contacts a workpiece, so that the contour bolt 7 moves along.

The device provides three detection states. According to the different shapes of the workpiece to be detected, the three detection states correspond to different treatments. Before the production line begins to produce, the corresponding relation is adjusted according to the specific characteristics of the workpiece and the site requirement. The three states are respectively:

1. neither the low sensor 6 nor the high sensor 4 sense the contour bolt 7. The state can be corresponding to the missing of the workpiece, or the state can be that the hole corresponding to the workpiece is too deep, and the workpiece is misplaced. Typically corresponding to an error condition.

2. The low sensor 6 senses the contour bolt 7, but the high sensor 4 does not sense the contour bolt 7. Such conditions correspond to the presence of holes in the workpiece with a depth that meets the requirements. Typically the correct state.

3. The low sensor 6 and the high sensor 4 both sense the contour bolt 7. Such a condition corresponds to the absence of holes or insufficient depth of holes at corresponding locations on the workpiece. Typically corresponding to an error condition.

And step S3, detecting, namely separating the device from the workpiece under the drive of production line equipment. After the new workpiece is in place, the method returns to step S2 to detect again.

In particular, in the adjustment process in step S2, the springs and the positioning pin heads 12 of the device can be replaced according to the size of the holes to be measured on the workpiece, for example, the springs and the positioning pin heads 12 with different diameters or lengths can be replaced, so that the sensing unit can report the state 2 when the workpiece is correct.

The foregoing description is merely illustrative of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model. Equivalent changes and modifications are intended to be within the scope of the present utility model as defined in the appended claims.

Claims

1. The multi-type hole error proofing device for the workpiece is characterized by comprising a support, a sensing unit, a position detecting unit and an adjustment measuring unit; the sensing unit and the position detection unit are fixed to the support, and are connected to production line equipment by the support; one end of the adjustment measuring unit is connected to the position detecting unit, and the other end of the adjustment measuring unit contacts a workpiece.

2. The multi-type hole fault-prevention device for a workpiece as claimed in claim 1, wherein the support comprises an L-shaped support and a T-shaped riser connected to each other; one arm of the L-shaped support is connected to one end of a cross arm of the T-shaped vertical plate, and the other arm is fixed to the production line equipment; the sensing unit is connected to the T-shaped riser cross arm, and the position detection unit is connected to the T-shaped riser cross arm.

3. The multi-type hole error proofing device for a workpiece according to claim 1, wherein the sensing unit comprises a high-level sensing unit and a low-level sensing unit; the high-level sensing unit and the low-level sensing unit are arranged on the support in a relative and staggered manner; the low-level sensing unit is positioned below the high-level sensing unit.

4. A multi-type hole error proofing apparatus according to claim 3, wherein said high-level sensor unit comprises a high-level sensor holder and a high-level sensor; the high-level sensor bracket is fixed on the support; a long waist hole is formed in the high-level sensor bracket; the high-level sensor is fixed on the high-level sensor bracket through the long waist hole.

5. A multi-type hole error proofing apparatus according to claim 3, wherein said low level sensor unit comprises a low level sensor holder and a low level sensor; the low-level sensor bracket is fixed on the support; a long waist hole is formed in the low-level sensor bracket; the low-level sensor is fixed on the low-level sensor bracket through the long waist hole.

6. The multi-type hole error proofing device for a workpiece according to claim 1, wherein the position detection unit comprises a contour bolt and a linear bearing; the linear bearing is fixed on the support; the contour bolt is inserted into the linear bearing and moves along the limiting direction of the linear bearing.

7. The multi-type hole fault protection device for a workpiece as claimed in claim 6, wherein said position detection unit further comprises a linear bearing shield; the linear bearing protection cover is fixed on the support and sleeved outside the linear bearing; the tail of the equal-height bolt contacts the linear bearing protection cover.

8. The multi-type hole fault-prevention device for a workpiece as claimed in claim 6, wherein a bushing is provided between the linear bearing and the contour bolt.

9. The multi-type hole error proofing apparatus according to claim 1, wherein said adjustment measuring unit comprises a spring, a dowel head and a spacer; the two ends of the spring are respectively connected with the positioning pin head and the gasket; the pad is connected to the position detection unit; the dowel head contacts the workpiece.

10. The multi-type hole fault protection device for a workpiece as claimed in claim 9, wherein said adjustment measurement unit further comprises a spring protection cover; the spring protection cover is fixed on the support and sleeved outside the spring.