US20200338613A1

US20200338613A1 - Auxiliary frame shape correcting device

Info

Publication number: US20200338613A1
Application number: US16/669,457
Authority: US
Inventors: Huiying Liu; Zhixue Wang
Original assignee: CITIC Dicastal Co Ltd
Current assignee: CITIC Dicastal Co Ltd
Priority date: 2019-04-29
Filing date: 2019-10-30
Publication date: 2020-10-29
Also published as: CN109967561B; CN109967561A

Abstract

The disclosure discloses an auxiliary frame shape correcting device which comprises a machine frame; support plates are arranged on the lower portion of the machine frame; servo motors I are fixed on the support plates; the output ends of the servo motors I are provided with pressure heads I; the front portion, the rear portion, the left portion and the right portion of the machine frame are provided with pressure heads correspondingly, and thus an auxiliary frame can be subjected to shape correcting spatially up and down, left and right, and front and back.

Description

FIELD

The present disclosure relates to the technical field of auxiliary frame shape correcting, in particular to an auxiliary frame shape correcting device.

BACKGROUND

With the development of automobile manufacturing technologies, more and more steel parts are replaced with aluminum parts, such as auxiliary frames. The auxiliary frames made of aluminum alloy meet the strength requirement, while the weight can be greatly reduced. At present, the popular auxiliary frame is of a welded structure of castings and profiles, that is, the auxiliary frame is spliced by four parts, a front beam and a rear beam are made of profiles, and a left beam and a right beam are made of castings. In order to improve the quality of the product and control deformation of the castings, it is necessary to correct the shapes of the left beam and the right beam before welding. Based on this situation, the disclosure provides an auxiliary frame shape correcting device so that the quality of the castings can be improved.

SUMMARY

In view of the situation, the disclosure aims to provide an auxiliary frame shape correcting device capable of spatially correcting the shape of an auxiliary frame up and down, left and right, and front and back. Two corresponding pressure heads can be used as references for each other, up-down deformation and front-back deformation can be eliminated, deformation caused by too large or too small hole spacing can also be eliminated, and thus the auxiliary frame shape correcting device is flexible, practical and convenient and fast to use.
In order to achieve the above objectives, the technical solution of the disclosure is achieved as follows:
An auxiliary frame shape correcting device comprises a machine frame; the bottom of the machine frame is provided with vertically-upward support devices; the upper portion of the machine frame is provided with horizontal guide rails and horizontally arranged air cylinders I; the lower portion of the machine frame is provided with support plates; servo motors I are fixed on the support plates; the output ends of the servo motors I are connected with feeding platforms I through linear transmission members; the front ends of the feeding platforms I are provided with pressure heads I; sliding tables I are mounted on the horizontal guide rails; the output ends of the air cylinders I are connected inwardly with the sliding tables I; the sliding tables 1 are fixedly provided with servo motors III; the output ends of the servo motors III are downwards connected with ball screws III; the ball screws III are connected with feeding platforms III; and the front ends of the feeding platforms III are provided with pressure heads III.
In one or some embodiments, ball screws I are used as the linear transmission members and connected with the feeding platforms I.
In one or some embodiments, the sliding tables I are further fixedly provided with guide rails III, and the feeding platforms III are arranged on the guide rails III.
In one or some embodiments, servo motors II of which the output ends are horizontally inward are arranged on the two sides, corresponding to the top surfaces of the support devices, of the machine frame; the output ends of the servo motors II are connected with ball screws II; the ball screws II are connected with feeding platforms II; the front ends of the feeding platforms II are provided with pressure heads II; the horizontal guide rails are further provided with sliding tables II; the sliding tables II are connected with the output ends of air cylinders II fixed on the machine frame; the sliding tables II are fixedly provided with air cylinders III; the output ends of the air cylinders III are connected with sliding tables III; and the front ends of the sliding tables III are provided with pressure heads IV.
In one or some embodiments, the sliding tables II are further fixedly provided with vertical guide rails, and the sliding tables III are arranged on the vertical guide rails.
In one or some embodiments, the front portion and the rear portion, corresponding to the top surfaces of the support devices, of the machine frame are provided with servo motors V of which the output ends are horizontally inward, and servo motors IV of which the output ends are horizontally inward; the output ends of the servo motors V and the servo motors IV are connected with ball screws V and ball screws IV; the ball screws V and the ball screws IV are connected with feeding platforms V and feeding platforms IV; and the front ends of the feeding platforms V and the feeding platforms IV are provided with pressure heads VI and pressure heads V.
Compared with the prior art, the auxiliary frame shape correcting device of the disclosure has the following advantages that:
The sliding tables I are driven by the air cylinders I to move horizontally, so that the pressure heads I and the pressure heads III are coaxial vertically, when casting holes are deformed upwards, the lower pressure heads I are used as a reference, and the upper pressure heads III apply pressure downwards for shape correcting; and when the casting holes are deformed downwards, the upper pressure heads III are used as a reference, the lower pressure heads I apply pressure upwards for shape correcting, and thus servo pressure systems I are formed and used for completing shape correcting of the auxiliary frame in the up-down direction.
The sliding tables II are driven by the air cylinders II to move horizontally, so that the pressure heads IV are located directly above the casting holes, then the air cylinders III are started for driving the pressure heads IV to move downwards, the level of the pressure heads IV is consistent with the level of the pressure heads II, when the casting holes are deformed leftwards, the pressure heads IV are used as a reference, and the pressure heads II apply pressure rightwards for shape correcting; and when the casting holes are deformed rightwards, the pressure heads II serve as a reference, the pressure heads IV apply pressure to inner walls of the holes for shape correcting, and thus servo pressure systems II are formed and used for completing shape correcting of the auxiliary frame in the left-right direction.
When the casting holes are deformed forwards, the pressure heads V are used as a reference, and the pressure heads VI apply pressure backwards for shape correcting; and when the casting holes are deformed backwards, the pressure heads VI are used as a reference, the pressure heads V apply pressure forwards for shape correcting, and thus servo pressure systems III are formed and used for completing shape correcting of the auxiliary frame in the front-back direction.
Through the device, the shape of the auxiliary frame can be spatially corrected up and down, left and right, and front and back. Two corresponding pressure heads can be used as references for each other, up-down deformation and front-back deformation can be eliminated, deformation caused by too large or too small hole spacing can also be eliminated, and thus the auxiliary frame shape correcting device is advanced in process, ingenious in conception, flexible, practical and convenient and fast to use.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings forming part of the disclosure are used for providing further understanding of the disclosure, and the illustrative embodiments of the disclosure and explanations thereof are used for explaining the disclosure without undue limitations on the disclosure. In the drawings:

FIG. 1 is a front view of an auxiliary frame shape correcting device of the disclosure; and

FIG. 2 is a top view of an auxiliary frame shape correcting device of the disclosure.

DESCRIPTIONS OF NUMERALS IN THE DRAWINGS

1—Bottom hard support, 2—Auxiliary support, 3—Side surface hard support, 4—Pressure claw, 5—Machine frame, 6—Support plate, 7—Servo motor I, 8—Coupling, 9—Guide rail I, 10—Ball screw I, 11—Feeding platform I, 12—Pressure head I, 13—Servo motor II, 14—Ball screw II, 15—Guide rail II, 16—Feeding platform II, 17—Pressure head II, 18—Air cylinder I, 19—Horizontal guide rail, 20—Sliding table I, 21—Servo motor III, 22—Guide rail III, 23—Feeding platform III, 24—Ball screw III, 25—Pressure head III, 26—Air cylinder II, 27—Sliding table II, 28—Air cylinder III, 29—Vertical guide rail, 30—Sliding table III, 31—Pressure head IV, 32—Servo motor IV, 33—Guide rail IV, 34—Ball screw IV, 35—Feeding platform IV, 36—Pressure head V, 37—Servo motor V, 38—Guide rail V, 39—Ball screw V, 40—Feeding platform V and 41—Pressure head VI.

DETAILED DESCRIPTION

It should be noted that the embodiments of the disclosure and the features of the embodiments may be combined with each other without conflicts.
The technical solutions of the disclosure will be described clearly and completely hereinafter with reference to the drawings and the embodiments, and obviously, the embodiments described herein are only a part of the embodiments of the disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the disclosure without creative efforts are within the scope of protection of the disclosure.
An auxiliary frame shape correcting device according to an embodiment of the disclosure will be described below with reference to FIG. 1 and FIG. 2.
As shown in FIG. 1 and FIG. 2, an auxiliary frame shape correcting device comprises bottom hard supports 1, auxiliary supports 2, side surface hard supports 3, pressure claws 4, a machine frame 5, support plates 6, servo motors I 7, couplings 8, guide rails I 9, ball screws I 10, feeding platforms I 11, pressure heads I 12, servo motors II 13, ball screws II 14, guide rails II 15, feeding platforms II 16, pressure heads II 17, air cylinders I 18, horizontal guide rails 19, sliding tables I 20, servo motors III 21, guide rails III 22, feeding platform III 23, ball screws III 24, pressure heads III 25, air cylinders II 26, sliding tables II 27, air cylinders III 28, vertical guide rails 29, sliding tables III 30, pressure heads IV 31, servo motors IV 32, guide rails IV 33, ball screws IV 34, feeding platforms IV 35, pressure heads V 36, servo motors V 37, guide rails V 38, ball screws V 39, feeding platforms V 40, pressure heads VI 41 and other structures.
The auxiliary frame shape correcting device is composed of an automobile body mounting front point shape corrector and an automobile body mounting back point shape corrector. The front point shape corrector and the back point shape corrector are of the same structure, are symmetrical, and are each composed of three servo pressure systems, the first one is a servo pressure system I for completing shape correcting of an auxiliary frame in the up-down direction, the second one is a servo pressure system II for completing shape correcting of the auxiliary frame in the left-right direction, and the third one is a servo pressure system III for completing shape correcting of an auxiliary frame in the front-back direction. During usage, shape correcting of automobile body mounting front points is completed at first, and then based on the reference, shape correcting of automobile body mounting back points is conducted.
The auxiliary frame is positioned through a six-point positioning principle. The bottom surface of the auxiliary frame is positioned through three bottom hard supports 1 and two auxiliary supports 2, the front surface of the auxiliary frame is positioned through two side surface hard supports 3, the left side surface of the auxiliary frame is positioned through one side surface hard support 3, and the auxiliary frame is clamped through the pressure claws 4.
The servo motors I 7 are fixed on the support plates 6, and the output ends of the servo motors I 7 are connected with the ball screws I 10; the ball screws I 10 are connected with the feeding platforms I 11; the feeding platforms I 11 are mounted on the guide rails I 9; and the pressure heads I 12 are mounted at the front ends of the feeding platforms I 11. Servo feed of the pressure heads I 12 in the up-down direction can be controlled by the servo motors I 7. The horizontal guide rails 19 are fixed on the upper portion of the machine frame 5; the sliding tables I 20 are mounted on the horizontal guide rails 19; and the sliding tables I 20 can be controlled by the air cylinders I 18 to move left and right. The servo motors III 21 are fixed on the sliding tables I 20; the output ends of the servo motors III 21 are connected with the ball screws III 24; the feeding platforms III 23 are connected with the ball screws III 24; the feeding platforms III 23 are mounted on the guide rails III 22; the pressure heads III 25 are mounted on the front ends of the feeding platforms III 23, and servo feed of the pressure heads III 25 in the up-down direction can be controlled by the servo motors III 21. The sliding tables I 20 are driven by the air cylinders I 18 to move horizontally, so that the pressure heads I 12 and the pressure heads III 25 are coaxial vertically, when casting holes are deformed upwards, the lower pressure heads I 12 are used as a reference, and the upper pressure heads III 25 apply pressure downwards for shape correcting; and when the casting holes are deformed downwards, the upper pressure heads III 25 serve as a reference, the lower pressure heads I 12 apply pressure upwards for shape correcting, and thus servo pressure systems I are formed and used for completing shape correcting of the auxiliary frame in the up-down direction.
The servo motors II 13 are fixed on the left side portion of the machine frame 5, the output ends of the servo motors II 13 are connected with the ball screws II 14; the ball screws II 14 are connected with the feeding platforms II 16; the feeding platforms II 16 are mounted on the guide rails II 15; and the pressure heads II 17 are mounted at the front ends of the feeding platforms II 16. Horizontal servo feed of the pressure heads II 17 can be controlled by the servo motors II 13. The sliding tables II 27 are mounted on the horizontal guide rails 19, and the sliding tables II 27 can be controlled by the air cylinders II 26 to move left and right. The air cylinders III 28 are fixed on the sliding tables II 27, the output ends of the air cylinders III 28 are connected with the sliding tables III 30; the sliding tables III 30 are mounted on the vertical guide rails 29; the pressure heads IV 31 are mounted at the front ends of the sliding tables III 30, and the pressure heads IV 31 can be controlled by the air cylinders III 28 to move up and down. The sliding tables II 27 are driven by the air cylinders II 26 to move horizontally, so that the pressure heads IV 31 are located directly above the casting holes, then the air cylinders III 28 are started for driving the pressure heads IV31 to move downwards, the level of the pressure heads IV 31 is consistent with the level of the pressure heads II 17, when the casting holes are deformed leftwards, the pressure heads IV 31 are used as a reference, and the pressure heads II 17 apply pressure rightwards for shape correcting; and when the casting holes are deformed rightwards, the pressure heads II 17 serve as a reference, the pressure heads IV 31 apply pressure to inner walls of the holes for shape correcting, and thus servo pressure systems II are formed and used for completing shape correcting of the auxiliary frame in the left-right direction.
The servo motors IV 32 are fixed on the rear portion of the machine frame 5; the output ends of the servo motors IV 32 are connected with the ball screws IV 34; the ball screws IV 34 are connected with the feeding platforms IV 35; the feeding platforms IV 35 are mounted on the guide rails IV 33; and the pressure heads V 36 are mounted at the front ends of the feeding platform IV35. Servo feed of the pressure heads V 36 in the front-back direction can be controlled by the servo motors IV 32. The servo motors V 37 are fixed on the front portion of the machine frame 5; the output ends of the servo motors V 37 are connected with the ball screws V 39; the feeding platforms V 40 are connected with the ball screws V 39; the feeding platforms V 40 are mounted on the guide rails V 38; the pressure heads VI 41 are mounted at the front ends of the feeding platforms V 40; and servo feed of the pressure heads VI 41 in the front-back direction can be controlled by the servo motors V 37. When the casting holes are deformed forwards, the pressure heads V 36 are used as a reference, and the pressure heads VI 41 apply pressure backwards for shape correcting; and when the casting holes are deformed backwards, the pressure heads VI 41 are used as a reference, the pressure heads V 36 apply pressure forwards for shape correcting, and thus servo pressure systems III are formed and used for completing shape correcting of the auxiliary frame in the front-back direction.
The working process of the auxiliary frame shape correcting device is as follows: firstly, the auxiliary frame is positioned and clamped, then shape correcting is conducted sequentially in the up-down direction, the left-right direction and the front-back direction, shape correcting of the automobile body mounting front points is completed first, and then based on the reference, the automobile body mounting back points are subjected to shape correcting.
Compared with the prior art, the auxiliary frame shape correcting device of the disclosure has the following advantages that:
The sliding tables I 20 are driven by the air cylinders I 18 to move horizontally, so that the pressure heads I 12 and the pressure heads III 25 are coaxial vertically, when casting holes are deformed upwards, the lower pressure heads I 12 are used as a reference, and the upper pressure heads III 25 apply pressure downwards for shape correcting; and when the casting holes are deformed downwards, the upper pressure heads III 25 serve as a reference, the lower pressure heads I 12 apply pressure upwards for shape correcting, and thus servo pressure systems I are formed and used for completing shape correcting of the auxiliary frame in the up-down direction.
The sliding tables II 27 are driven by the air cylinders II 26 to move horizontally, so that the pressure heads IV 31 are located directly above the casting holes, then the air cylinders III 28 are started for driving the pressure heads IV31 to move downwards, the level of the pressure heads IV 31 is consistent with the level of the pressure heads II 17, when the casting holes are deformed leftwards, the pressure heads IV 31 are used as a reference, and the pressure heads II 17 apply pressure rightwards for shape correcting; and when the casting holes are deformed rightwards, the pressure heads II 17 serve as a reference, the pressure heads IV 31 apply pressure to inner walls of the holes for shape correcting, and thus servo pressure systems II are formed and used for completing shape correcting of the auxiliary frame in the left-right direction.
When the casting holes are deformed forwards, the pressure heads V 36 are used as a reference, and the pressure heads VI 41 apply pressure backwards for shape correcting; and when the casting holes are deformed backwards, the pressure heads VI 41 are used as a reference, the pressure heads V 36 apply pressure forwards for shape correcting, and thus servo pressure systems III are formed and used for completing shape correcting of the auxiliary frame in the front-back direction.
Through the device, the shape of the auxiliary frame can be spatially corrected up and down, left and right, and front and back. Two corresponding pressure heads can be used as references for each other, up-down deformation and front-back deformation can be eliminated, deformation caused by too large or too small hole spacing can also be eliminated, and thus the auxiliary frame shape correcting device is advanced in process, ingenious in conception, flexible, practical and convenient and fast to use.
While exemplary embodiments are described above, it is not intended that these embodiments describe all possible forms of the invention. Rather, the words used in the specification are words of description rather than limitation, and it is understood that various changes may be made without departing from the spirit and scope of the invention. Additionally, the features of various implementing embodiments may be combined to form further embodiments of the invention.

Claims

1. An auxiliary frame shape correcting device, comprising a machine frame; the bottom of the machine frame is provided with vertically-upward support devices; wherein the upper portion of the machine frame is provided with horizontal guide rails and horizontally arranged air cylinders I; the lower portion of the machine frame is provided with support plates; servo motors I are fixed on the support plates; the output ends of the servo motors I are connected with feeding platforms I through linear transmission members; the front ends of the feeding platforms I are provided with pressure heads I; sliding tables I are mounted on the horizontal guide rails; the output ends of the air cylinders I are connected inwardly with the sliding tables I; the sliding tables 1 are fixedly provided with servo motors III; the output ends of the servo motors III are downwards connected with ball screws III; the ball screws III are connected with feeding platforms III; and the front ends of the feeding platforms III are provided with pressure heads III.

2. The auxiliary frame shape correcting device according to claim 1, wherein ball screws I are used as the linear transmission members, and the ball screws I are connected with the feeding platforms I.

3. The auxiliary frame shape correcting device according to claim 2, wherein the sliding tables I are further fixedly provided with guide rails III, and the feeding platforms III are arranged on the guide rails III.

4. The auxiliary frame shape correcting device according to claim 1, wherein servo motors II of which the output ends are horizontally inward are arranged on the two sides, corresponding to the top surfaces of the support devices, of the machine frame; the output ends of the servo motors II are connected with ball screws II; the ball screws II are connected with feeding platforms II; the front ends of the feeding platforms II are provided with pressure heads II; the horizontal guide rails are further provided with sliding tables II; the sliding tables II are connected with the output ends of air cylinders II fixed on the machine frame; the sliding tables II are fixedly provided with air cylinders III; the output ends of the air cylinders III are connected with sliding tables III; and the front ends of the sliding tables III are provided with pressure heads IV.

5. The auxiliary frame shape correcting device according to claim 4, wherein the sliding tables II are further fixedly provided with vertical guide rails, and the sliding tables III are arranged on the vertical guide rails.

6. The auxiliary frame shape correcting device according to claim 4, wherein the front portion and the rear portion, corresponding to the top surfaces of the support devices, of the machine frame are provided with servo motors V of which the output ends are horizontally inward, and servo motors IV of which the output ends are horizontally inward; the output ends of the servo motors V and the servo motors IV are connected with ball screws V and ball screws IV(34); the ball screws V and the ball screws IV are connected with feeding platforms V and feeding platforms IV; and the front ends of the feeding platforms V and the feeding platforms IV are provided with pressure heads VI and pressure heads V.