Positioning device for automobile roof welding

Abstract

The present invention discloses a positioning device for welding a car roof, comprising a roof clamping frame, the roof clamping frame and a mounting bracket are connected through a positioning assembly, a fixing assembly is arranged between the roof clamping frame and the mounting bracket, a limit assembly is arranged between the roof clamping frame and the mounting bracket, a first connecting plate is arranged on the roof clamping frame, a connecting seat is arranged on the first connecting plate, a floating groove is arranged on the connecting seat, a first spherical protrusion and a second spherical protrusion are arranged on the floating groove, an adjusting plate and a bearing plate are arranged on the second connecting plate, the bearing plate cooperates with a spherical end head, the second connecting plate is fixedly arranged on the mounting bracket, and the first connecting plate and the second connecting plate are connected through a reset spring. In this device, under the action of the positioning assembly, the car roof can be quickly adapted to the car body on the production line, and no additional driving device is required to assist in the adaptation process, which can effectively save costs, and at the same time, the precise installation of the car roof is also achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile production, in particular to a positioning device for welding automobile roofs. Background Art

[0002] With the development of technology, automobile production lines have gradually achieved full automation, among which the welding between the automobile roof and the automobile body is an important part. However, in the actual production process, various production equipment is worn, which makes it impossible to achieve accurate installation during the welding process of the automobile roof, and there are errors in the installation accuracy, which ultimately leads to poor welding quality of the fixed automobile roof, making it impossible for the production line to achieve continuous production. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a positioning device for welding a car roof.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A positioning device for welding a car roof, comprising a roof clamping frame, a mounting bracket, a positioning assembly, a limiting assembly and a fixing assembly, wherein the roof clamping frame and the mounting bracket are connected via the positioning assembly, the fixing assembly is arranged between the roof clamping frame and the mounting bracket and is used to prevent relative movement between the roof clamping frame and the mounting bracket, and the limiting assembly is arranged between the roof clamping frame and the mounting bracket;

[0006] The positioning assembly includes a first connecting plate, a second connecting plate, a connecting seat, a first spherical protrusion, a second spherical protrusion, an adjustment plate, a bearing plate and a reset spring. The first connecting plate is fixedly arranged on the top cover clamping frame. The connecting seat is fixedly arranged at one end of the first connecting plate. A floating groove parallel to the first connecting plate is provided on the connecting seat. The first spherical protrusion is fixedly arranged on the upper inner wall of the floating groove, and the second spherical protrusion is fixedly arranged on the lower inner wall of the floating groove. Spherical ends are provided on the first spherical protrusion and the second spherical protrusion. The end of the second connecting plate is arranged in the floating groove and is located between the two spherical ends. The adjusting plate and the bearing plate are fixedly arranged on the upper and lower sides of the second connecting plate in sequence, and the bearing plate cooperates with the spherical end. The second connecting plate is fixedly arranged on the mounting bracket. The other end of the first connecting plate is connected to the other end of the second connecting plate through the reset spring. Two mutually perpendicular adjustment rods are provided on the side wall of the connecting seat, and the adjustment rods cooperate with the side wall of the second connecting plate.

[0007] Furthermore, one end of the return spring is fixed to the first connecting plate through a connecting ear, the return spring is connected to one end of a connecting rod, the connecting rod is arranged in a sleeve and the other end is fixed on the upper end of the sleeve, the lower end of the sleeve is fixed on the second connecting plate, and the second connecting plate is provided with an adjustment hole that cooperates with the return spring.

[0008] Furthermore, the fixing assembly includes a piston cylinder, a fixing sleeve and a fixing protrusion, the cylinder body of the piston cylinder is fixedly arranged on the mounting bracket, the fixing sleeve is coaxially fixedly arranged on the piston rod of the piston cylinder, the fixing sleeve is provided with a groove, one end of the fixing protrusion is fixedly arranged on the top cover clamping frame, and the other end of the fixing protrusion cooperates with the fixing sleeve.

[0009] Furthermore, the cross-section of the groove and the cross-section of the fixing protrusion are both circular.

[0010] Furthermore, the fixing protrusion, the groove and the piston rod are coaxially arranged.

[0011] Furthermore, the limiting assembly includes a fixed rod, a guide rod and a guide wheel, one end of the fixed rod is fixedly set on the top cover clamping frame, and the other end of the fixed rod is provided with two freely rotatable guide wheels, one end of the guide rod is set between the two guide wheels, and the other end of the guide rod is fixedly set on the mounting bracket.

[0012] Furthermore, the guide wheel is an eccentric guide wheel.

[0013] Furthermore, the connecting seat is provided with a penetrating threaded hole, and the adjusting rod is arranged in the threaded hole and threadably matched with the threaded hole.

[0014] Furthermore, four groups of positioning components are arranged between the top cover clamping frame and the mounting bracket, and the four groups of positioning components are symmetrically arranged.

[0015] Furthermore, two groups of the fixing components are arranged between the top cover clamping frame and the mounting bracket, and the fixing components are arranged at both ends of the mounting bracket. Two groups of the limiting components are arranged between the top cover clamping frame and the mounting bracket, and the limiting components are arranged on both sides of the mounting bracket.

[0016] The beneficial effects of the present invention are:

[0017] 1) In this device, under the action of the positioning component, the automobile roof can be quickly adapted to the car body for welding on the production line. No additional driving equipment is required to assist in the adaptation process, which can effectively save costs. At the same time, precise welding of the automobile roof is also achieved.

[0018] 2) In the present device, two spherical ends are provided to facilitate the relative sliding between the first connecting plate and the second connecting plate, and then the relative sliding between the top cover clamping frame and the mounting bracket is achieved, so that the automobile top cover is finally accurately installed.

[0019] 3) In the present device, an adjustment rod is provided so that the relative movement between the top cover clamping frame and the mounting bracket is controlled within a required range.

[0020] 4) In this device, the piston cylinder, the fixing sleeve and the fixing protrusion are provided to facilitate the control of the relative movement between the top cover clamping frame and the mounting bracket. When movement is required, they are relaxed. When movement is not required, the piston cylinder is directly controlled so that the fixing sleeve is set on the fixing protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural diagram of the device;

[0022] Figure 2 This is a top view of the structure of the device;

[0023] Figure 3 It is a three-dimensional structural diagram of the interior of the connecting seat;

[0024] In the figure, 1-top cover clamping frame, 2-mounting bracket, 3-first connecting plate, 4-second connecting plate, 5-connecting seat, 6-first spherical protrusion, 7-second spherical protrusion, 8-adjusting plate, 9-bearing plate, 10-reset spring, 11-floating groove, 12-adjusting rod, 13-connecting ear, 14-connecting rod, 15-sleeve, 16-piston cylinder, 17-fixing sleeve, 18-fixing protrusion, 19-fixing rod, 20-guide rod, 21-guide wheel. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 3 , the present invention provides a technical solution:

[0027] A positioning device for welding a car top cover comprises a top cover clamping frame 1, a mounting bracket 2, a positioning assembly, a limiting assembly and a fixing assembly. The top cover clamping frame 1 and the mounting bracket 2 are connected via the positioning assembly. The fixing assembly is arranged between the top cover clamping frame 1 and the mounting bracket 2 and is used to prevent relative movement between the top cover clamping frame 1 and the mounting bracket 2. The limiting assembly is arranged between the top cover clamping frame 1 and the mounting bracket 2. Four groups of positioning assemblies are arranged between the top cover clamping frame 1 and the mounting bracket 2, and the four groups of positioning assemblies are arranged symmetrically. Two groups of fixing assemblies are arranged between the top cover clamping frame 1 and the mounting bracket 2, and the fixing assemblies are arranged at both ends of the mounting bracket 2. Two groups of limiting assemblies are arranged between the top cover clamping frame 1 and the mounting bracket 2, and the limiting assemblies are arranged on both sides of the mounting bracket 2. Among them, the main function of the top cover clamping frame 1 is to install various clamps for clamping the top cover of the car, the function of the mounting bracket 2 is to connect with the robot on the production line, and the installation work of the car top cover is controlled by the robot, the function of the positioning component is to make the top cover clamping frame 1 and the mounting bracket 2 have a relative sliding space, so that the car top cover is very convenient to adapt to the car for installation, the function of the limit component is to make the top cover clamping frame 1 move forward and backward, and the left and right movement is limited, and the function of the fixing component is to make the position between the top cover clamping frame 1 and the mounting bracket 2 completely fixed without relative movement. When the car top cover is to be clamped, the position ensures that the clamping position is correct, so the position between the top cover clamping frame 1 and the mounting bracket 2 needs to be fixed, and the fixing component plays a fixing role at this time; when the car top cover needs to be installed on the car, there is relative movement between the top cover clamping frame 1 and the mounting bracket 2, and the fixing component does not need to be fixed at this time, and the fixing component does not work. In this device, the cover clamping frame 1 and the mounting bracket 2 are parallel to each other.

[0028] The positioning assembly includes a first connecting plate 3, a second connecting plate 4, a connecting seat 5, a first spherical protrusion 6, a second spherical protrusion 7, an adjusting plate 8, a bearing plate 9 and a reset spring 10. The first connecting plate 3 is fixedly arranged on the top cover clamping frame 1, the connecting seat 5 is fixedly arranged at one end of the first connecting plate 3, and a floating groove 11 parallel to the first connecting plate 3 is arranged on the connecting seat 5. The first spherical protrusion 6 is fixedly arranged on the upper inner wall of the floating groove 11, and the second spherical protrusion 7 is fixedly arranged on the lower inner wall of the floating groove 11. The first spherical protrusion 6 and the second spherical protrusion 7 are fixedly arranged on the lower inner wall of the floating groove 11. The two spherical protrusions 7 are both provided with spherical ends, the end of the second connecting plate 4 is arranged in the floating groove 11 and is located between the two spherical ends, the upper and lower sides of the second connecting plate 4 are respectively fixedly provided with an adjustment plate 8 and a bearing plate 9, the bearing plate 9 cooperates with the spherical ends, the second connecting plate 4 is fixedly provided on the mounting bracket 2, the other end of the first connecting plate 3 is connected to the other end of the second connecting plate 4 through a reset spring 10, and two mutually perpendicular adjustment rods 12 are provided on the side wall of the connecting seat 5, and the adjustment rods 12 cooperate with the side wall of the second connecting plate 4. The connecting seat 5 is provided with a threaded hole through which the adjustment rod 12 is arranged and threadedly cooperates with the threaded hole. Among them, the first connecting plate 3 and the second connecting plate 4 are parallel to each other, the function of the connecting seat 5 is to connect the first connecting plate 3 and the second connecting plate 4, the function of the first spherical protrusion 6 and the second spherical protrusion 7 is to facilitate the sliding of the two bearing plates 9, the bearing plate 9, the first spherical protrusion 6 and the second spherical protrusion 7 are all made of high-hardness steel, the relative sliding between the top cover clamping frame 1 and the mounting bracket 2 is actually the relative sliding between the bearing plate 9 and the spherical end, and the relative sliding between the bearing plate 9 and the spherical end needs to achieve wear resistance. The function of the adjustment plate 8 is to adjust the installation height of the two bearing plates 9 so that the two bearing plates 9 and the spherical end are matched with each other, so as to prevent the bearing plates 9 from being stuck between the spherical ends, and there will not be too much space for moving up and down. After the top cover clamping frame 1 and the mounting bracket 2 are misaligned, the restoration work between the top cover clamping frame 1 and the mounting bracket 2 is realized by the action of the reset spring 10. The adjustment rod 12 is a screw in the prior art, so that the relative movement between the top cover clamping frame and the mounting bracket is controlled within the required range.

[0029] In some embodiments, one end of the return spring 10 is fixed to the first connecting plate 3 through the connecting ear 13, and the return spring 10 is connected to one end of the connecting rod 14. The connecting rod 14 is arranged in the sleeve 15 and the other end is fixedly arranged on the upper end of the sleeve 15. The lower end of the sleeve 15 is fixedly arranged on the second connecting plate 4, and the second connecting plate 4 is provided with an adjustment hole that matches the return spring 10. In this device, since the distance between the top cover clamping frame and the mounting bracket 2 is very close, the sleeve 15 and the connecting rod 14 are arranged so that there is enough installation space for the return spring 10.

[0030] In some embodiments, the fixing assembly includes a piston cylinder 16, a fixing sleeve 17 and a fixing protrusion 18. The cylinder body of the piston cylinder 16 is fixedly arranged on the mounting bracket 2, the fixing sleeve 17 is coaxially fixedly arranged on the piston rod of the piston cylinder 16, the fixing sleeve 17 is provided with a groove, one end of the fixing protrusion 18 is fixedly arranged on the top cover clamping frame 1, and the other end of the fixing protrusion 18 cooperates with the fixing sleeve 17. The cross-sections of the groove and the fixing protrusion 18 are both circular. The fixing protrusion 18, the groove and the piston rod are coaxially arranged. The cylinder body of the piston cylinder 16 is fixed on the mounting bracket 2, the fixing protrusion 18 is fixed on the top cover clamping frame 1, and the fixing sleeve 17 is fixed on the end of the piston rod. When the position between the mounting bracket 2 and the top cover clamping frame 1 needs to be fixed, the piston cylinder 16 is started so that the fixing protrusion 18 is inserted into the groove. At this time, the mounting bracket 2 is immovable relative to the top cover clamping frame 1. In this state, it is convenient for the top cover clamping frame 1 to find the car top cover and perform precise positioning and clamping. After clamping the car top cover, under the action of the piston cylinder 16, the fixing sleeve 17 is separated from the fixing protrusion 18, which is convenient for the subsequent adaptive installation of the car top cover. The piston cylinder 16 is a pneumatic cylinder or a hydraulic cylinder in the prior art.

[0031] In some embodiments, the limiting assembly includes a fixed rod 19, a guide rod 20 and a guide wheel 21, one end of the fixed rod 19 is fixedly set on the top cover clamping frame 1, and two freely rotatable guide wheels 21 are set on the other end of the fixed rod 19, one end of the guide rod 20 is set between the two guide wheels 21, and the other end of the guide rod 20 is fixedly set on the mounting bracket 2. The guide wheel 21 is an eccentric guide wheel. Among them, each limiting assembly has two guide wheels 21, one of which is a concentric wheel and the other is an eccentric wheel. Under the action of the eccentric wheel, the top cover clamping frame 1 can move to one end thereof. Under the action of the guide rod 20, the top cover clamping frame 1 can swing along the length direction of the guide rod 20.

[0032] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0034] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A positioning device for welding a car roof, characterized in that: The top cover clamping frame (1) comprises a top cover clamping frame (1), a mounting bracket (2), a positioning assembly, a limiting assembly and a fixing assembly, wherein the top cover clamping frame (1) and the mounting bracket (2) are connected via the positioning assembly, the fixing assembly is arranged between the top cover clamping frame (1) and the mounting bracket (2) and is used to prevent relative movement between the top cover clamping frame (1) and the mounting bracket (2), and the limiting assembly is arranged between the top cover clamping frame (1) and the mounting bracket (2); The positioning assembly comprises a first connecting plate (3), a second connecting plate (4), a connecting seat (5), a first spherical protrusion (6), a second spherical protrusion (7), an adjusting plate (8), a bearing plate (9) and a reset spring (10); the first connecting plate (3) is fixedly arranged on the top cover clamping frame (1); the connecting seat (5) is fixedly arranged at one end of the first connecting plate (3); a floating groove (11) parallel to the first connecting plate (3) is arranged on the connecting seat (5); the first spherical protrusion (6) is fixedly arranged on the upper inner wall of the floating groove (11); the second spherical protrusion (7) is fixedly arranged on the lower inner wall of the floating groove (11); the first spherical protrusion (6) and the second spherical protrusion (7) are fixedly arranged on the lower inner wall of the floating groove (11); The second spherical protrusions (7) are each provided with a spherical end head, the end of the second connecting plate (4) is arranged in the floating groove (11) and is located between the two spherical ends, the upper and lower sides of the second connecting plate (4) are respectively fixedly provided with the adjusting plate (8) and the bearing plate (9), the bearing plate (9) cooperates with the spherical end head, the second connecting plate (4) is fixedly provided on the mounting bracket (2), the other end of the first connecting plate (3) is connected to the other end of the second connecting plate (4) via the return spring (10), and two mutually perpendicular adjusting rods (12) are provided on the side wall of the connecting seat (5), the adjusting rods (12) cooperate with the side wall of the second connecting plate (4); One end of the return spring (10) is fixed to the first connecting plate (3) via a connecting ear (13); the return spring (10) is connected to one end of a connecting rod (14); the connecting rod (14) is arranged in a sleeve (15) and the other end is fixed to the upper end of the sleeve (15); the lower end of the sleeve (15) is fixed to the second connecting plate (4); and the second connecting plate (4) is provided with an adjustment hole that cooperates with the return spring (10); The limiting assembly comprises a fixing rod (19), a guide rod (20) and a guide wheel (21); one end of the fixing rod (19) is fixedly arranged on the top cover clamping frame (1); the other end of the fixing rod (19) is provided with two freely rotatable guide wheels (21); one guide wheel (21) is a concentric wheel, and the other guide wheel (21) is an eccentric wheel; one end of the guide rod (20) is arranged between the two guide wheels (21); and the other end of the guide rod (20) is fixedly arranged on the mounting bracket (2).

2. The positioning device for automobile roof welding according to claim 1, characterized in that: The fixing assembly comprises a piston cylinder (16), a fixing sleeve (17) and a fixing protrusion (18); the cylinder body of the piston cylinder (16) is fixedly arranged on the mounting bracket (2); the fixing sleeve (17) is coaxially fixedly arranged on the piston rod of the piston cylinder (16); a groove is arranged on the fixing sleeve (17); one end of the fixing protrusion (18) is fixedly arranged on the top cover clamping frame (1); and the other end of the fixing protrusion (18) cooperates with the fixing sleeve (17).

3. The positioning device for welding a car roof according to claim 2, characterized in that: The cross-sections of the groove and the fixing protrusion (18) are both circular.

4. The positioning device for welding a car roof according to claim 3, characterized in that: The fixing protrusion (18), the groove and the piston rod are coaxially arranged.

5. The positioning device for welding a car roof according to any one of claims 1 to 4, characterized in that: The connection seat (5) is provided with a threaded hole extending therethrough, and the adjustment rod (12) is arranged in the threaded hole and threadably engaged with the threaded hole.

6. The positioning device for welding a car roof according to any one of claims 1 to 4, characterized in that: Four groups of positioning components are arranged between the top cover clamping frame (1) and the mounting bracket (2), and the four groups of positioning components are symmetrically arranged.

7. The positioning device for welding a car roof according to any one of claims 1 to 4, characterized in that: Two groups of fixing components are arranged between the top cover clamping frame (1) and the mounting bracket (2), and the fixing components are arranged at both ends of the mounting bracket (2). Two groups of limiting components are arranged between the top cover clamping frame (1) and the mounting bracket (2), and the limiting components are arranged on both sides of the mounting bracket (2).

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