Welding fixture for front assembly of automobile side wall inner plate

Abstract

The invention relates to the technical field of automobile part machining, in particular to an automobile side wall inner plate front assembly welding clamp which comprises a base, a supporting frame, a positioning mechanism, a transverse clamping mechanism, a longitudinal clamping mechanism, a rotating mechanism and a jacking mechanism. The positioning mechanism is used for clamping and positioning a side wall inner plate, the transverse clamping mechanism is fixedly installed at the top of the positioning mechanism and used for clamping and fixing the left side and the right side of the side wall inner plate, and the longitudinal clamping mechanism is fixedly installed at the top of the positioning mechanism. According to the automobile side wall inner plate front assembly welding clamp, through the arranged rotating mechanism, the positioning mechanism and the jacking mechanism can be driven to move at the same time, so that the first stand column, the second stand column and the third stand column in the positioning mechanism move, the periphery of a side wall inner plate is clamped and positioned, and the working efficiency and the positioning accuracy of the welding clamp are improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, and in particular to a welding fixture for the front assembly of an automobile side inner panel. Background Art

[0002] Car is a common means of transportation. It has a long history of development and complex technical composition. Car has changed people’s travel mode and made people’s travel more convenient. It shortens the distance between people in geographical space and makes it convenient for people to commute to get off work, travel, visit relatives and friends, etc. At the same time, cars have also had a certain impact on people’s lifestyles. For example, the emergence of cars has expanded people’s scope of activities, and the development of some suburbs and rural areas has also been promoted because of the convenience of cars, giving rise to some new lifestyles, such as self-driving tours.

[0003] The front assembly of the inner side panel of an automobile is an important part of the side structure of the automobile body. It is located in the front area of ​​the side of the automobile body, usually extending from the front part of the car to the position in front of the door. This area plays a key connecting role in the automobile body structure. It connects the front structure and the door area of ​​the car. The manufacturing process of the front assembly of the inner side panel of an automobile can be divided into stamping, welding and painting. First, the metal sheet is stamped, and then the stamped components are combined together through a welding process. Commonly used welding methods include spot welding and arc welding. Finally, the welded front assembly of the inner side panel is painted.

[0004] Considering that during the welding process of the existing side inner panel, each part needs to be assembled and fixed for subsequent welding processing, and when fixing the parts, the parts need to be positioned by staff to avoid large size deviations of the parts after welding. Therefore, the staff are required to adjust the position of the parts many times, which leads to reduced processing efficiency and positioning accuracy during part welding, and further reduces the assembly accuracy of the whole vehicle. Summary of the invention

[0005] The purpose of the present invention is to provide a welding fixture for the front part of the inner panel of the side wall of an automobile.

[0006] To achieve this object, the present invention adopts the following technical solutions: Provided is a welding fixture for the front assembly of the side inner panel of an automobile, comprising a base, a support frame, a positioning mechanism, a transverse clamping mechanism, a longitudinal clamping mechanism, a rotating mechanism and a lifting mechanism, wherein the support frame is fixedly installed on the top of the base, the positioning mechanism is fixedly installed on the top of the support frame, the positioning mechanism is used to clamp and position the side inner panel, the transverse clamping mechanism is fixedly installed on the top of the positioning mechanism, the transverse clamping mechanism is used to clamp and fix the left and right sides of the side inner panel, the longitudinal clamping mechanism is fixedly installed on the top of the positioning mechanism, the longitudinal clamping mechanism is used to clamp and fix the front and rear sides of the side inner panel, the rotating mechanism is fixedly installed on the top of the base, the rotating mechanism is used to drive the positioning mechanism and the lifting mechanism to move, and the lifting mechanism can slide It is movably installed on the positioning mechanism, and the lifting mechanism is used to lift the inner panel of the side panel, so as to facilitate the staff to take the inner panel of the side panel. The positioning mechanism includes a workbench, a sleeve, a connecting rod 1, a column 1, a fixed rod, a hinged rod, a column 2, a rotating shaft, a connecting rod 2 and a column 3. The workbench is fixedly installed on the top of the support frame, the fixed rod is fixedly installed on the right side of the sleeve, the left end of the hinged rod is hinged to the right end of the fixed rod, and the right end of the hinged rod is rotatably connected to the bottom of the column 2. The connecting rod 1 is fixedly installed on the back side of the sleeve, and the column 1 is fixedly installed at the rear end of the connecting rod 1. The outer periphery of the rotating shaft is rotatably connected to the inner side of the sleeve. The connecting rod 2 is fixedly installed on the top of the back side of the rotating shaft, and the column 3 is fixedly installed at the rear end of the connecting rod 2.

[0007] Furthermore, the transverse clamping mechanism includes a fixed seat, a pressure plate, a cylindrical rod, a movable rod, a movable rod, a guide rod and a spring. The fixed seat is fixedly installed on the top right end of the workbench, the bottom of the pressure plate is hinged to the top of the fixed seat, the top of the cylindrical rod is movably connected to the inner side of the right end of the pressure plate, the left side of the bottom end of the cylindrical rod is hinged to the bottom end of the movable rod, the top of the movable rod is hinged to the bottom of the movable rod, the right inner wall of the bottom end of the cylindrical rod is slidably connected to the outer periphery of the guide rod, one end of the spring is fixedly connected to the bottom right end of the workbench, and the other end of the spring is fixedly installed on the right side of the bottom end of the cylindrical rod.

[0008] Furthermore, the outer periphery of the cylindrical rod is slidably connected to the inner side of the fixed seat, the outer periphery of the cylindrical rod penetrates and is slidably connected to the inner wall of the top right end of the workbench, the top end of the movable rod is slidably connected to the inner side of the top of the workbench, and the top end of the guide rod is fixedly installed on the bottom right end of the workbench.

[0009] Furthermore, the longitudinal clamping mechanism includes an arc-shaped plate, a mounting column, a second fixed seat, a second pressure plate, a lifting rod, a sliding block one and a second sliding block. The second fixed seat is fixedly mounted on the top rear end of the workbench, the bottom of the second pressure plate is hinged to the top of the second fixed seat, the top of the lifting rod is movably connected to the inner side of the rear end of the second pressure plate, the outer wall of the lifting rod is fixedly connected to the outer wall of the arc-shaped plate, the inner side of the arc-shaped plate is slidably connected to the outer periphery of the mounting column, the bottom of the mounting column is fixedly connected to the top rear end of the workbench, the outer periphery of the lifting rod is slidably connected to the inner side of the second fixed seat, the outer wall of the sliding block one is slidably connected to the inner side of the arc-shaped plate, and the outer wall of the sliding block two is slidably connected to the inner side of the arc-shaped plate.

[0010] Furthermore, the lifting mechanism includes a cylindrical shaft, a square rod, a push rod and a telescopic rod. The telescopic rod is fixedly installed on the left end of the cylindrical shaft, the top of the telescopic rod is hinged to the right front end of the square rod, the bottom of the push rod is fixedly installed on the top of the square rod, and the outer periphery of the push rod penetrates and is slidably connected to the inner side of the top of the workbench.

[0011] Furthermore, the rotating mechanism includes a shell, a motor, bevel gear one, bevel gear two and bevel gear three. The bottom of the motor is fixedly installed on the top of the base, the output shaft of the motor is fixedly connected to the bottom of the rotating shaft, the inner side of the bevel gear one is fixedly penetrated and fixedly connected to the outer wall of the rotating shaft, the inner side of the bevel gear two is penetrated and fixedly connected to the right end of the cylindrical shaft, the top of the bevel gear three is fixedly installed on the bottom of the sleeve, and the bottom of the shell is fixedly connected to the top of the base.

[0012] Furthermore, the outer periphery of the cylindrical shaft penetrates and is rotatably connected to the left inner wall of the shell, the outer periphery of the sleeve penetrates and is rotatably connected to the top inner wall of the shell, bevel gear one meshes with bevel gear two, and bevel gear two meshes with bevel gear three.

[0013] Furthermore, an arc groove is provided on the top of the workbench, the outer periphery of column one is slidably connected to the inner side of the arc groove, the outer periphery of column three is slidably connected to the inner side of the arc groove, the outer periphery of column two is slidably connected to the inner side of the top of the workbench, the outer wall of column one is fixedly connected to the outer wall of sliding block one, and the outer wall of column three is fixedly connected to the outer wall of sliding block two.

[0014] The beneficial effects of the present invention are as follows: the automobile side panel front assembly welding fixture can simultaneously drive the positioning mechanism and the lifting mechanism to move through the arranged rotating mechanism, so that the rotating shaft and the sleeve in the positioning mechanism rotate, and then drive the column one, the column two and the column three to move, and clamp and position the four sides of the side panel inner panel, so that the working efficiency and positioning accuracy of the welding fixture are improved. At the same time, the column two can drive the transverse clamping mechanism to move during the movement, and clamp and fix the side panel inner panel in the transverse direction, while the column one and the column three can drive the longitudinal clamping mechanism to move during the movement, and clamp and fix the side panel inner panel in the longitudinal direction, so that the side panel inner panel can maintain a good fixing effect, and further improve the working efficiency and use effect of the welding fixture. In addition, through the arrangement of the lifting mechanism, the side panel inner panel after welding can be lifted upward for cooling, and it is also convenient for the staff to clean the welding slag attached to the side panel inner panel, and it is also convenient to remove the side panel inner panel from the welding fixture, so that the use effect of the welding fixture is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the embodiments of the present invention are briefly introduced below.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall main structure of the present invention; Figure 3 It is a schematic diagram of the front view structure of the sleeve of the present invention; Figure 4 It is a schematic diagram of the main structure of the rotating shaft of the present invention; Figure 5 It is a schematic diagram of the front view of the transverse clamping mechanism of the present invention; Figure 6 It is a schematic diagram of the front view of the longitudinal clamping mechanism of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram of part A in the middle; Figure 8 It is a schematic diagram of the main structure of the jacking mechanism of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the shell of the present invention.

[0017] In the figure: 1, base; 2, support frame; 3, positioning mechanism; 31, workbench; 32, sleeve; 33, connecting rod 1; 34, column 1; 35, fixed rod; 36, hinge rod; 37, column 2; 38, rotating shaft; 39, connecting rod 2; 310, column 3; 4, horizontal clamping mechanism; 41, fixed seat 1; 42, pressure plate 1; 43, cylindrical rod; 44, moving rod; 45, movable rod; 46, guide rod ; 47. Spring; 5. Longitudinal clamping mechanism; 51. Arc plate; 52. Mounting column; 53. Fixed seat 2; 54. Press plate 2; 55. Lifting rod; 56. Sliding block 1; 57. Sliding block 2; 6. Rotating mechanism; 61. Housing; 62. Motor; 63. Bevel gear 1; 64. Bevel gear 2; 65. Bevel gear 3; 7. Lifting mechanism; 71. Cylindrical shaft; 72. Square rod; 73. Push rod; 74. Telescopic rod. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0019] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0020] Reference Figure 1 to Figure 2The illustrated welding fixture for the front assembly of the side inner panel of an automobile comprises a base 1, a support frame 2, a positioning mechanism 3, a transverse clamping mechanism 4, a longitudinal clamping mechanism 5, a rotating mechanism 6 and a lifting mechanism 7. The support frame 2 is fixedly mounted on the top of the base 1, the positioning mechanism 3 is fixedly mounted on the top of the support frame 2, the positioning mechanism 3 is used to clamp and position the side inner panel, thereby improving the dimensional accuracy of the side inner panel during the welding process, the transverse clamping mechanism 4 is fixedly mounted on the top of the positioning mechanism 3, the transverse clamping mechanism 4 is used to clamp and fix the left and right sides of the side inner panel, thereby further limiting the transverse position of the side inner panel to prevent the side inner panel from shifting during the welding process, the longitudinal clamping mechanism 5 is fixedly mounted on the top of the positioning mechanism 3, and the longitudinal clamping mechanism 5 is fixedly mounted on the top of the positioning mechanism 3. The clamping mechanism 5 is used to clamp and fix the front and rear sides of the side panel inner plate, so as to further limit the longitudinal position of the side panel inner plate to prevent the side panel inner plate from shifting during welding. The rotating mechanism 6 is fixedly installed on the top of the base 1. The rotating mechanism 6 is used to drive the positioning mechanism 3 and the lifting mechanism 7 to move. The positioning mechanism 3 and the lifting mechanism 7 can work simultaneously through the rotating mechanism 6, thereby improving the smoothness and work efficiency of the welding fixture. The lifting mechanism 7 can be slidably installed on the positioning mechanism 3. The lifting mechanism 7 is used to lift the side panel inner plate, so as to facilitate the staff to take the side panel inner plate. At the same time, the side panel inner plate after welding is lifted by the lifting mechanism 7, which is convenient for the staff to clean the welding slag and can improve the cooling effect of the side panel inner plate.

[0021] Refer to 1 to Figure 4The positioning mechanism 3 includes a workbench 31, a sleeve 32, a connecting rod 1 33, a column 1 34, a fixing rod 35, a hinge rod 36, a column 2 37, a rotating shaft 38, a connecting rod 2 39 and a column 3 310. The workbench 31 is fixedly installed on the top of the support frame 2, and the transverse clamping mechanism 4 and the longitudinal clamping mechanism 5 are supported and fixed by the workbench 31. The fixing rod 35 is fixedly installed on the right side of the sleeve 32. There are two groups of fixing rods 35 symmetrically distributed. Through the rotation effect of the sleeve 32, the two groups of fixing rods 35 can be driven to rotate at the same time. The left end of the hinge rod 36 is hinged to the right end of the fixing rod 35. There are two groups of hinge rods 36 symmetrically distributed. When the fixing rod 35 rotates, it can drive the hinge rod 36 to move. The right end of the hinge rod 36 is rotatably connected to the bottom of the column 2 37. There are two groups of column 2 37 symmetrically distributed. When the hinge rod 36 moves , which can drive the column 2 37 to move, the connecting rod 1 33 is fixedly installed on the back side of the sleeve 32, and the connecting rod 1 33 is staggered in two groups. When the sleeve 32 rotates, it can drive the two groups of connecting rods 1 33 to rotate at the same time, the column 1 34 is fixedly installed on the rear end of the connecting rod 1 33, and the column 1 34 is staggered in two groups. When the connecting rod 1 33 rotates, it can drive the column 1 34 to move, the outer periphery of the rotating shaft 38 is rotatably connected to the inner side of the sleeve 32, the connecting rod 2 39 is fixedly installed on the top of the back side of the rotating shaft 38, and the connecting rod 2 39 is staggered in two groups. When the rotating shaft 38 rotates, it can drive the two groups of connecting rods 2 39 to rotate at the same time, the column 310 is fixedly installed on the rear end of the connecting rod 2 39, and the column 310 is staggered in two groups. When the connecting rod 2 39 rotates, it can drive the column 310 to move.

[0022] Reference Figure 2 and Figure 5The lateral clamping mechanism 4 includes a fixed seat 41, a pressure plate 42, a cylindrical rod 43, a moving rod 44, a movable rod 45, a guide rod 46 and a spring 47. The fixed seat 41 is fixedly installed at the top right end of the workbench 31. The fixed seat 41 and the pressure plate 42 are symmetrically distributed in four groups along the center line of the workbench 31, and the clamping surfaces of the fixed seat 41 and the pressure plate 42 are both made of rubber. The bottom of the pressure plate 42 is hinged to the top of the fixed seat 41, and the top of the cylindrical rod 43 is movably connected to the inner side of the right end of the pressure plate 42. Through the vertical movement effect of the cylindrical rod 43, the cylindrical rod 43 can drive the pressure plate 42 to rotate along the hinge point as the center, so that the inner panel of the side panel can be clamped and fixed. The left side of the bottom end of the cylindrical rod 43 is hinged to the bottom end of the movable rod 45 When the movable rod 45 moves, it can drive the cylindrical rod 43 to move vertically. The top of the movable rod 45 is hinged to the bottom of the movable rod 44. Through the lateral movement effect of the movable rod 44, the movable rod 45 can be driven to move. The right inner wall of the bottom end of the cylindrical rod 43 is slidably connected to the outer periphery of the guide rod 46. The guide rod 46 guides the cylindrical rod 43 to prevent the cylindrical rod 43 from shifting when moving. One end of the spring 47 is fixedly connected to the right end of the bottom of the workbench 1, and the other end of the spring 47 is fixedly installed on the right side of the bottom end of the cylindrical rod 43. Through the elastic force of the spring 47, the cylindrical rod 43 always keeps sliding downward when not affected by external force, thereby driving the pressure plate 42 to reverse upward, thereby releasing the clamping effect on the inner plate of the side enclosure.

[0023] Reference Figure 5 The outer circumference of the cylindrical rod 43 is slidably connected to the inner side of the fixed seat 41, and the outer circumference of the cylindrical rod 43 penetrates and is slidably connected to the inner wall of the top right end of the workbench 31. There are four groups of cylindrical rods 43 symmetrically distributed along the center line of the workbench 31. The top end of the moving rod 44 is slidably connected to the inner side of the top of the workbench 31, and the workbench 31 guides the moving rod 44 to prevent the moving rod 44 from shifting during movement. The top end of the guide rod 46 is fixedly installed on the bottom right end of the workbench 1. When the two groups of columns 37 approach each other to clamp and position the side enclosure inner plate, the column 37 will contact the moving rod 44 during the movement, so that the column 37 can squeeze the moving rod 44 to move, so that the pressure plate 42 and the fixed seat 41 clamp the side enclosure inner plate.

[0024] Reference Figure 6 and Figure 7The longitudinal clamping mechanism 5 includes an arc-shaped plate 51, a mounting column 52, a second fixing seat 53, a second pressing plate 54, a lifting rod 55, a first sliding block 56 and a second sliding block 57. The second fixing seat 53 is fixedly mounted on the top rear end of the workbench 31. The second fixing seat 53 and the second pressing plate 54 are symmetrically distributed in two groups along the center line of the workbench 31. The clamping surfaces of the second fixing seat 53 and the second pressing plate 54 are both made of rubber. The bottom of the second pressing plate 54 is hinged to the top of the second fixing seat 53. The top of the lifting rod 55 is movably connected to the inner side of the rear end of the second pressing plate 54. Through the vertical movement effect of the lifting rod 55, the second pressing plate 54 can be driven to rotate along the hinge point, so that the inner panel of the side panel can be clamped and fixed. The outer wall of the lifting rod 55 is fixedly connected to the outer wall of the arc-shaped plate 51. The lifting rod 55 is symmetrically distributed in two groups along the center line of the workbench 31. The inner side of the arc-shaped plate 51 is slidably connected to the outer periphery of the mounting column 52. Then, there are two groups of symmetrically distributed arc plates 51, and two groups of mounting columns 52 are symmetrically distributed on each group of arc plates 51. Through the vertical sliding effect of the arc plates 51, the lifting rod 55 can be driven to move vertically. The bottom of the mounting column 52 is fixedly connected to the top rear end of the workbench 31, and the mounting column 52 guides the arc plate 51 to prevent the arc plate 51 from shifting during movement. The outer periphery of the lifting rod 55 is slidably connected to the inner side of the fixed seat 2 53, the outer wall of the sliding block 1 56 is slidably connected to the inner side of the arc plate 51, and the outer wall of the sliding block 2 57 is slidably connected to the inner side of the arc plate 51. There are two groups of sliding blocks 1 56 and sliding blocks 2 57, and both sliding blocks 1 56 and sliding blocks 2 57 are provided with inclined surfaces. Through the sliding effect of sliding blocks 1 56 and sliding blocks 2 57, the arc plate 51 can be lifted up, thereby driving the lifting rod 55 to move upward.

[0025] Reference Figure 2 and Figure 8 The jacking mechanism 7 includes a cylindrical shaft 71, a square rod 72, a push rod 73 and a telescopic rod 74. The telescopic rod 74 is fixedly installed at the left end of the cylindrical shaft 71. The cylindrical shaft 71 is symmetrically distributed with two groups, and the telescopic rod 74 is staggered with two groups. The top of the telescopic rod 74 is hinged to the right front end of the square rod 72. When the telescopic rod 74 rotates, it can drive the square rod 72 to move vertically, and the bottom of the push rod 73 is fixedly installed on the top of the square rod 72. The square rod 72 is symmetrically distributed with two groups. Two groups of push rods 73 are arranged on each group of square rods 72. The outer periphery of the push rod 73 penetrates and is slidably connected to the inner side of the top of the workbench 31. When the cylindrical shaft 71 rotates, it can drive the telescopic rod 74 to rotate, so that the square rod 72 can drive the push rod 73 to move vertically, and then the welded side inner panel can be lifted.

[0026] Reference Figure 2 and Fig. 9The rotating mechanism 6 includes a housing 61, a motor 62, a bevel gear 1 63, a bevel gear 2 64 and a bevel gear 3 65. The bottom of the motor 62 is fixedly mounted on the top of the base 1. The output shaft of the motor 62 is fixedly connected to the bottom of the rotating shaft 38. By starting the motor 62, the rotating shaft 38 can be driven to rotate. The inner side of the bevel gear 1 63 is fixedly penetrated and fixedly connected to the outer wall of the rotating shaft 38. Through the rotation effect of the rotating shaft 38, the bevel gear 1 63 can be driven to rotate. The inner side of the bevel gear 2 64 The side penetrates through and is fixedly connected to the right end of the cylindrical shaft 71. There are two groups of symmetrically distributed bevel gears 64. The cylindrical shaft 71 can be driven to rotate through the rotation effect of the bevel gear 2 64. The top of the bevel gear 3 65 is fixedly installed on the bottom of the sleeve 32. The sleeve 32 can be driven to rotate through the rotation effect of the bevel gear 3 65. The bottom of the shell 61 is fixedly connected to the top of the base 1. The shell 61 protects the motor 62, bevel gear 1 63, bevel gear 2 64 and bevel gear 3 65.

[0027] Reference Fig. 9 The outer periphery of the cylindrical shaft 71 penetrates and is rotatably connected to the left inner wall of the shell 61, the outer periphery of the sleeve 32 penetrates and is rotatably connected to the top inner wall of the shell 61, the bevel gear 1 63 is meshed with the bevel gear 2 64, and the bevel gear 2 64 is meshed with the bevel gear 3 65. When the rotating shaft 38 rotates, it can drive the bevel gear 1 63 to rotate, and through the bevel gear 1 63, the two sets of bevel gear 2 64 are driven to rotate at the same time, and the directions are opposite. Through the rotation effect of the two sets of bevel gear 2 64, the bevel gear 3 65 can be driven to rotate, so that the direction of the bevel gear 3 65 is opposite to that of the bevel gear 1 63.

[0028] Reference Figure 1 and Figure 6 An arc groove is provided on the top of the workbench 1, and there are two groups of arc grooves symmetrically distributed. The outer periphery of the column 1 34 is slidably connected to the inner side of the arc groove, and the rotation effect of the sleeve 32 drives the column 1 34 to slide along the inner side of the arc groove. The outer periphery of the column 310 is slidably connected to the inner side of the arc groove, and the rotation effect of the rotating shaft 38 drives the column 310 to slide along the inner side of the arc groove. The outer periphery of the column 2 37 is slidably connected to the inner side of the top of the workbench 31, and the workbench 31 guides the column 2 37. The outer wall of the column 1 34 is fixedly connected to the outer wall of the sliding block 1 56, and the sliding block 1 56 is driven to slide along the inner side of the arc groove through the column 1 34. The outer wall of the column 310 is fixedly connected to the outer wall of the sliding block 2 57, and the sliding block 2 57 is driven to slide along the inner side of the arc groove through the column 310.

[0029] The front assembly welding fixture of the automobile side inner panel can drive the positioning mechanism and the lifting mechanism to move at the same time through the arranged rotating mechanism, so that the rotating shaft and the sleeve in the positioning mechanism rotate, and then drive the first column, the second column and the third column to move, so as to clamp and position the four sides of the side inner panel, so as to improve the working efficiency and positioning accuracy of the welding fixture. At the same time, the second column can drive the transverse clamping mechanism to move during the movement, so as to clamp and fix the side inner panel in the transverse direction, and the first column and the third column can drive the longitudinal clamping mechanism to move during the movement, so as to clamp and fix the side inner panel in the longitudinal direction, so as to maintain a good fixing effect of the side inner panel, and further improve the working efficiency and use effect of the welding fixture. In addition, through the arrangement of the lifting mechanism, the side inner panel after welding can be lifted upward for cooling, and it is also convenient for the staff to clean the welding slag attached to the side inner panel, and it is also convenient to remove the side inner panel from the welding fixture, so that the use effect of the welding fixture is further improved.

[0030] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A welding fixture for the front assembly of the inner side panel of an automobile, characterized in that: The invention comprises a base (1), a support frame (2), a positioning mechanism (3), a transverse clamping mechanism (4), a longitudinal clamping mechanism (5), a rotating mechanism (6) and a lifting mechanism (7), wherein the support frame (2) is fixedly mounted on the top of the base (1), the positioning mechanism (3) is fixedly mounted on the top of the support frame (2), the positioning mechanism (3) is used to clamp and position the side inner panel, the transverse clamping mechanism (4) is fixedly mounted on the top of the positioning mechanism (3), the transverse clamping mechanism (4) is used to clamp and fix the left and right sides of the side inner panel, the longitudinal clamping mechanism (5) is fixedly mounted on the top of the positioning mechanism (3), the longitudinal clamping mechanism (5) is used to clamp and fix the front and rear sides of the side inner panel, the rotating mechanism (6) is fixedly mounted on the top of the base (1), the rotating mechanism (6) is used to drive the positioning mechanism (3) and the lifting mechanism (7) to move, the lifting mechanism (7) is slidably mounted on the positioning mechanism (3), and the lifting mechanism (7) is used to lift the side inner panel, thereby When the staff takes the inner panel of the side panel, the positioning mechanism (3) includes a workbench (31), a sleeve (32), a connecting rod (33), a column (34), a fixing rod (35), a hinge rod (36), a column (37), a rotating shaft (38), a connecting rod (39) and a column (310). The workbench (31) is fixedly mounted on the top of the support frame (2), the fixing rod (35) is fixedly mounted on the right side of the sleeve (32), and the left end of the hinge rod (36) is connected to the fixing rod. The right end of the hinge rod (35) is hinged, the right end of the hinge rod (36) is rotatably connected to the bottom of the second column (37), the first connecting rod (33) is fixedly installed on the back of the sleeve (32), the first column (34) is fixedly installed on the rear end of the first connecting rod (33), the outer periphery of the rotating shaft (38) is rotatably connected to the inner side of the sleeve (32), the second connecting rod (39) is fixedly installed on the top of the back of the rotating shaft (38), and the third column (310) is fixedly installed on the rear end of the second connecting rod (39).

2. The welding fixture for the front assembly of the side inner panel of an automobile according to claim 1, characterized in that: The transverse clamping mechanism (4) comprises a fixed seat (41), a pressure plate (42), a cylindrical rod (43), a movable rod (44), a movable rod (45), a guide rod (46) and a spring (47). The fixed seat (41) is fixedly mounted on the top right end of the workbench (31). The bottom of the pressure plate (42) is hinged to the top of the fixed seat (41). The top of the cylindrical rod (43) is movably connected to the inner side of the right end of the pressure plate (42). The left side of the bottom end of the cylindrical rod (43) is hinged to the bottom end of the movable rod (45). The top of the movable rod (45) is hinged to the bottom of the movable rod (44). The right inner wall of the bottom end of the cylindrical rod (43) is slidably connected to the outer periphery of the guide rod (46). One end of the spring (47) is fixedly connected to the bottom right end of the workbench (1). The other end of the spring (47) is fixedly mounted on the right side of the bottom end of the cylindrical rod (43).

3. The welding fixture for the front assembly of the side inner panel of an automobile according to claim 2, characterized in that: The outer periphery of the cylindrical rod (43) is slidably connected to the inner side of the fixed seat (41), the outer periphery of the cylindrical rod (43) penetrates and is slidably connected to the inner wall of the top right end of the workbench (31), the top end of the movable rod (44) is slidably connected to the inner side of the top of the workbench (31), and the top end of the guide rod (46) is fixedly mounted on the bottom right end of the workbench (31).

4. The automobile side inner panel front assembly welding fixture according to claim 1, characterized in that: The longitudinal clamping mechanism (5) comprises an arc-shaped plate (51), a mounting column (52), a second fixing seat (53), a second pressing plate (54), a lifting rod (55), a first sliding block (56) and a second sliding block (57), wherein the second fixing seat (53) is fixedly mounted on the top rear end of the workbench (31), the bottom of the second pressing plate (54) is hinged to the top of the second fixing seat (53), the top of the lifting rod (55) is movably connected to the inner side of the rear end of the second pressing plate (54), and the lifting rod (55) is hinged to the top of the second fixing seat (53). ) is fixedly connected to the outer wall of the arc plate (51), the inner side of the arc plate (51) is slidably connected to the outer periphery of the mounting column (52), the bottom of the mounting column (52) is fixedly connected to the top rear end of the workbench (31), the outer periphery of the lifting rod (55) is slidably connected to the inner side of the fixing seat 2 (53), the outer wall of the sliding block 1 (56) is slidably connected to the inner side of the arc plate (51), and the outer wall of the sliding block 2 (57) is slidably connected to the inner side of the arc plate (51).

5. The welding fixture for the front assembly of the side inner panel of an automobile according to claim 1, characterized in that: The lifting mechanism (7) comprises a cylindrical shaft (71), a square rod (72), a push rod (73) and a telescopic rod (74). The telescopic rod (74) is fixedly mounted on the left end of the cylindrical shaft (71). The top end of the telescopic rod (74) is hinged to the right front end of the square rod (72). The bottom of the push rod (73) is fixedly mounted on the top of the square rod (72). The outer periphery of the push rod (73) penetrates the inner side of the top of the workbench (31) and is slidably connected.

6. The automobile side inner panel front assembly welding fixture according to claim 1, characterized in that: The rotating mechanism (6) comprises a housing (61), a motor (62), a bevel gear 1 (63), a bevel gear 2 (64) and a bevel gear 3 (65); the bottom of the motor (62) is fixedly mounted on the top of the base (1); the output shaft of the motor (62) is fixedly connected to the bottom of the rotating shaft (38); the inner side of the bevel gear 1 (63) is fixedly penetrated and fixedly connected to the outer wall of the rotating shaft (38); the inner side of the bevel gear 2 (64) is penetrated and fixedly connected to the right end of the cylindrical shaft (71); the top of the bevel gear 3 (65) is fixedly mounted on the bottom of the sleeve (32); and the bottom of the housing (61) is fixedly connected to the top of the base (1).

7. The automobile side inner panel front assembly welding fixture according to claim 6, characterized in that: The outer periphery of the cylindrical shaft (71) penetrates and is rotatably connected to the left inner wall of the housing (61), the outer periphery of the sleeve (32) penetrates and is rotatably connected to the top inner wall of the housing (61), the bevel gear 1 (63) meshes with the bevel gear 2 (64), and the bevel gear 2 (64) meshes with the bevel gear 3 (65).

8. The automobile side inner panel front assembly welding fixture according to claim 1, characterized in that: An arc groove is provided on the top of the workbench (31), the outer periphery of the first column (34) is slidably connected to the inner side of the arc groove, the outer periphery of the third column (310) is slidably connected to the inner side of the arc groove, the outer periphery of the second column (37) is slidably connected to the inner side of the top of the workbench (1), the outer wall of the first column (34) is fixedly connected to the outer wall of the first sliding block (56), and the outer wall of the third column (310) is fixedly connected to the outer wall of the second sliding block (57).

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