Floating mechanism for online measurement

Abstract

The utility model relates to the field of welding fixture tools, in particular to a floating mechanism for on-line measurement, which comprises a support column, a guide rail slider component I, a middle sliding plate, a guide rail slider component II, an upper sliding plate and a fixture bearing plate which are sequentially connected from bottom to top, wherein the lower end of the middle sliding plate is fixedly provided with a pair of transverse spring floating assemblies and transverse limiting plates, and the transverse limiting plates are located on the left side and the right side of the middle sliding plate; a pair of longitudinal spring floating assemblies and a pair of longitudinal limiting plates are fixedly installed at the lower end of the upper sliding plate, and the longitudinal limiting plates are located on the front side and the rear side of the upper sliding plate, so that the clamp bearing plate horizontally floats within a set limiting range. By arranging a guide rail sliding block and a spring floating assembly, an originally over-positioned unit is compensated, and local deformation is reduced or eliminated, so that the overall size precision is improved; according to the technology, the dimensional precision of the mechanism is improved, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding fixture frock technical field, concretely relates to a floating mechanism for on -line measurement. BACKGROUND

[0002] White body welding technology has realized the era of automatic integration, is the result of innovation, is the result of breakthrough. However, in the pursuit of innovation breakthrough, the over positioning problem of frock fixture.

[0003] White body welding technology has gradually matured, has realized the automatic integration basically, but over positioning of frock plate piece has certain lack, due to the high requirement of the size of stud in the assembly workshop, leading to the high size precision of stud welding in the welding workshop. Therefore, the size of stud welding position needs to be measured before entering the coating and assembly workshop. Therefore, a floating mechanism for on -line measurement is designed, which can reduce or eliminate the deformation of the frock positioning mechanism to the plate piece, thereby improving the accuracy of on -line measurement.

[0004] In the prior art, we usually do not consider the over positioning problem of the plate itself, and usually do not consider the over positioning problem, only use multiple fixed positioning units for positioning, without considering the over positioning between multiple positioning. It can be seen that the previous scheme has influence on the measurement accuracy of stud. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a floating mechanism for on -line measurement, which aims at overcoming the defects of the prior art, solving the problem of reducing or eliminating the influence of frock positioning on the deformation of plate during automatic measurement of body stud, thereby improving the measurement accuracy and saving cost.

[0006] Therefore, the utility model provides a floating mechanism for on -line measurement, which comprises support columns, guide rail sliding block assemblies one, intermediate sliding plates, guide rail sliding block assemblies two, upper sliding plates and clamp bearing plates connected in sequence from bottom to top. One pair of horizontal spring floating assemblies and horizontal limiting plates are fixedly installed at the lower end of the intermediate sliding plate, and the horizontal limiting plates are located on the left and right sides of the intermediate sliding plate. One pair of vertical spring floating assemblies and vertical limiting plates are fixedly installed at the lower end of the upper sliding plate, and the vertical limiting plates are located on the front and rear sides of the upper sliding plate, so that the clamp bearing plate can horizontally float within the set limiting range.

[0007] As a preferred technical scheme of the present application, the horizontal spring floating assembly and the vertical spring floating assembly each comprise a four-rib guide sleeve, a pair of compression springs, a pair of guide bolts and an adjusting nut.

[0008] As a preferred technical scheme of the present application, the four-edge guide sleeve is further provided with mounting blind holes at both ends, the compression spring is fixedly connected with the corresponding mounting blind hole and the guide bolt respectively, and the guide bolt is connected with the transverse limiting plate or the longitudinal limiting plate through the adjusting nut.

[0009] As a preferred technical scheme of the present application, screw holes are arranged on the four-edge guide sleeve for fixed connection with the middle slide plate or the upper slide plate.

[0010] As a preferred technical scheme of the present application, a pair of transverse limiting plates are respectively connected at both ends of the transverse spring floating assembly, and a pair of longitudinal limiting plates are respectively connected at both ends of the longitudinal spring floating assembly.

[0011] As a preferred technical scheme of the present application, a fixing seat and a cylindrical ejector pin are further provided, and the jig bearing plate is provided with a latch hole at one end, the fixing seat is fixedly connected with one of the transverse limiting plates through a bolt, and the jig bearing plate and the fixing seat are fixed through the cylindrical ejector pin.

[0012] As a preferred technical scheme of the present application, a cylindrical bushing is arranged in the latch hole of the fixing seat.

[0013] As a preferred technical scheme of the present application, a scale is arranged on the fixing seat, and a pointer is arranged on the jig bearing plate.

[0014] As a preferred technical scheme of the present application, dustproof baffle plates are arranged on both sides of the upper slide plate and the middle slide plate.

[0015] As a preferred technical scheme of the present application, dustproof baffle plates are further arranged on the transverse limiting plate and the longitudinal limiting plate.

[0016] The floating mechanism for online measurement provided by the present application is used when the jig is positioned at the bottom, the guide rail sliding block and the spring floating assembly are arranged to ensure that the plate member is not over-positioned, and the plate member itself deformation amount (compensation unit) is reduced, the accuracy of robot visual automatic detection of stud precision (error reduction) is improved, the originally over-positioned unit is compensated, the local deformation amount is reduced or eliminated, and the overall size precision is improved, the present technology not only ensures the improvement of the size precision of the mechanism, but also reduces the manufacturing cost.

[0017] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of the specification of the application serve to provide further understanding of the application, the illustrative embodiments of the application and their descriptions serve to explain the application, and do not constitute improper limitations on the application. In the drawings:

[0019] Fig. 1 A structural schematic view of a floating mechanism for online measurement of the utility model;

[0020] Fig. 2 An exploded view of the floating mechanism for online measurement of the utility model;

[0021] Fig. 3 A structural schematic view of a transverse spring floating assembly in the floating mechanism for online measurement of the utility model;

[0022] The drawing reference is explained: 1, support column; 2, clamp bearing plate; 3, cylindrical top pin; 4, pointer; 5, fixed seat; 6, transverse limiting plate; 7, longitudinal limiting plate; 8, upper slide plate; 9, guide rail sliding block assembly two; 10, dust baffle; 11, guide rail sliding block assembly one; 12, transverse spring floating assembly; 13, cylindrical bushing; 14, intermediate slide plate; 15, longitudinal spring floating assembly; 16, scale; 21, four-edge guide sleeve; 22, compression spring; 23, guide bolt. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The application will be described in detail below with reference to the drawings and in combination with embodiments.

[0024] As Figs. 1-3 shown, the floating mechanism for online measurement of the utility model, including: support column 1, guide rail sliding block assembly one 11, transverse spring floating assembly 12, intermediate slide plate 14, guide rail sliding block assembly two 9, longitudinal spring floating assembly 15, upper slide plate 8, clamp bearing plate 2, fixed seat 5 and cylindrical top pin 3.

[0025] Specifically, a pair of guide rail sliding block assembly one 11 is fixedly installed on the support column 1, the lower end of the intermediate slide plate 14 is connected with the sliding block of the guide rail sliding block assembly one 11, the upper end of the intermediate slide plate 14 is connected with the guide rail of a pair of guide rail sliding block assembly two 9, the upper slide plate 8 is further connected with the sliding block of a pair of guide rail sliding block assembly two 9, and the clamp bearing plate 2 is fixedly installed on the upper slide plate 8, so that the clamp bearing plate 2 can move freely in the horizontal direction equivalent to the support column 1.

[0026] Meanwhile, a pair of transverse spring floating assemblies 12 are fixedly installed at the lower end of the middle slide plate 14. The two ends of the transverse spring floating assemblies 12 are respectively connected to transverse limiting plates 6, and the transverse limiting plates 6 are located on the left and right sides of the middle slide plate 14. A pair of longitudinal spring floating assemblies 15 are fixedly installed at the lower end of the upper slide plate 8. The two ends of the longitudinal spring floating assemblies 15 are respectively connected to longitudinal limiting plates 7, and the longitudinal limiting plates 7 are located on the front and rear sides of the upper slide plate 8, so that the clamp bearing plate 2 floats in the horizontal direction within the set limit range.

[0027] The transverse spring floating assembly 12 and the longitudinal spring floating assembly 15 each include a four-sided guide sleeve 21, a pair of compression springs 22, a pair of guide bolts 23, and an adjusting nut. The four-sided guide sleeve 21 is provided with a screw hole for fixed connection with the intermediate slide plate 14 or the upper slide plate 8. The four-sided guide sleeve 21 is also provided with blind mounting holes at both ends. The compression springs 22 are fixedly connected to the corresponding blind mounting holes and guide bolts 23 respectively. The guide bolts 23 are connected to the transverse limiting plate 6 or the longitudinal limiting plate 7 through the adjusting nut. By rotating the adjusting nut, the relative position between the transverse limiting plate 6 and the intermediate slide plate 14 or the longitudinal limiting plate 7 and the upper slide plate 8 is adjusted, the initial position of the clamp bearing plate 2 relative to the support column 1 is adjusted, and the floating range of the entire floating mechanism is controlled.

[0028] In one embodiment, such as Fig. 2 As shown, the floating mechanism also has a fixed seat 5 and a cylindrical top pin 3, and one end of the clamp bearing plate 2 is provided with a pin hole. The fixed seat 5 is fixedly connected to one of the transverse limiting plates 6 by bolts. The cylindrical top pin 3 keeps the clamp bearing plate 2 and the fixed seat 5 in a fixed position, releases the floating function, and achieves precise positioning support.

[0029] In order to improve the service life of the fixing seat 5, a cylindrical bushing 13 is installed in the pin hole where the fixing seat 5 is located. The cylindrical bushing 13 can be replaced in time after wear.

[0030] In addition, a scale 16 is set on the fixed base 5 and a pointer 4 is set on the clamp support plate 2. During the debugging process, the initial position of the clamp support plate 2 relative to the support column 1 can be precisely adjusted according to the error value.

[0031] like Fig. 2 As shown, dust baffles 10 are provided on both sides of the upper slide plate 8 and the middle slide plate 14. Dust baffles 10 are also provided on the lateral limiting plate 6 and the longitudinal limiting plate 7. By setting multiple dust baffles 10, dust can be prevented from entering the guide rail slider assembly 11, the lateral spring floating assembly 12, the guide rail slider assembly 29 and the longitudinal spring floating assembly 15.

[0032] The working principle and process of the floating mechanism for online measurement of this utility model are briefly described below.

[0033] First, the floating mechanism is assembled, the cylindrical pin 3 is taken out from the fixture bearing plate 2 and the fixed seat 5, so that the fixture bearing plate 2 can float, then the welding fixture to be supported is placed on the fixture bearing plate 2, according to the floating distance of the transverse spring floating assembly 12 and the longitudinal spring floating assembly 15, the rotating adjusting nut is rotated, and the scale 16 and the pointer 4 are contrasted; the middle sliding plate 14 is adjusted to be located at the middle position of the pair of transverse limiting plates 6, and the upper sliding plate 8 is adjusted to be located at the middle position of the pair of longitudinal limiting plates 7, so that the floating range of the fixture bearing plate 2 in the transverse direction and the longitudinal direction is kept symmetrical balance.

[0034] The application is used when the fixture is positioned, ensures that a plate part is not over-positioned, reduces the deformation amount of the plate part (compensation unit), improves the accuracy of the precision of the robot visual automatic detection stud (reduces error), can reduce or eliminate the deformation of the plate part caused by the fixture positioning mechanism, thereby improving the accuracy during online measurement, and simultaneously reduces project cost.

[0035] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A floating mechanism for online measurement, characterized in that, It comprises a support column (1), a guide rail slider assembly one (11), an intermediate slide plate (14), a guide rail slider assembly two (9), an upper slide plate (8) and a clamp bearing plate (2) connected in turn from bottom to top. Wherein, the intermediate slide plate (14) is fixedly installed with a pair of transverse spring floating assemblies (12) and a transverse limiting plate (6) at the lower end, and the transverse limiting plate (6) is located on the left and right sides of the intermediate slide plate (14); the upper slide plate (8) is fixedly installed with a pair of longitudinal spring floating assemblies (15) and a longitudinal limiting plate (7) at the lower end, and the longitudinal limiting plate (7) is located on the front and rear sides of the upper slide plate (8), so that the clamp bearing plate (2) horizontally floats within the set limiting range.

2. A floating mechanism for online measurement according to claim 1, characterized in that The transverse spring floating assembly (12) and the longitudinal spring floating assembly (15) each comprise a four-rib guide sleeve (21), a pair of compression springs (22), a pair of guide bolts (23) and an adjusting nut.

3. A floating mechanism for online measurement according to claim 2, characterized in that The four-rib guide sleeve (21) is further provided with mounting blind holes at both ends, the compression spring (22) is fixedly connected with the corresponding mounting blind hole and the guide bolt (23), and the guide bolt (23) is connected with the transverse limiting plate (6) or the longitudinal limiting plate (7) through the adjusting nut.

4. The floating mechanism for online measurement according to claim 2, characterized in that, The four-rib guide sleeve (21) is provided with a threaded hole for fixed connection with the intermediate slide plate (14) or the upper slide plate (8).

5. The floating mechanism for online measurement according to claim 3, characterized in that, A pair of transverse limiting plates (6) are respectively connected at both ends of the transverse spring floating assembly (12), and a pair of longitudinal limiting plates (7) are respectively connected at both ends of the longitudinal spring floating assembly (15).

6. The floating mechanism for online measurement according to claim 1, characterized in that, It also has a fixed seat (5) and a cylindrical ejector pin (3), and one end of the clamp bearing plate (2) is provided with a latch hole, the fixed seat (5) is fixedly connected with one of the transverse limiting plates (6) through a bolt, so that the clamp bearing plate (2) and the fixed seat (5) are kept fixed through the cylindrical ejector pin (3).

7. A floating mechanism for online measurement according to claim 6, characterized in that The fixed seat (5) is provided with a cylindrical bushing (13) in the latch hole.

8. The floating mechanism for online measurement according to claim 6, characterized in that, The fixed seat (5) is provided with a scale (16), and a pointer (4) is provided on the clamp bearing plate (2).

9. The floating mechanism for online measurement according to claim 1, characterized by, The upper slide plate (8) and the intermediate slide plate (14) are both provided with dustproof baffles (10).

10. The floating mechanism for online measurement according to claim 1, characterized in that, The transverse limiting plate (6) and the longitudinal limiting plate (7) are also provided with dustproof baffles (10).

Images