A frame welding line equipped with a rotating tool

Abstract

The present invention provides a frame welding assembly line equipped with a rotating tool, comprising a crawler, a guardrail, a welding bracket and a tool, wherein the welding bracket is provided with a mounting plate and a latch, and the tool comprises a left positioning component, a right positioning sleeve plate and a steering bridge bracket, wherein the left end of the left positioning component is provided with a flange plate, and the flange plate is provided with a left positioning hole, and the steering bridge bracket is used to clamp a workpiece, and the left rotating shaft and the right rotating shaft of the tool enable the tool to be rotatably installed on two welding brackets, and after the tool is rotated by an angle, the latch is passed through the bracket positioning hole and the left positioning hole to lock the tool on the welding bracket, thereby realizing the positioning of the workpiece, and after completing a welding process, the crawler delivers the workpiece to the next station, the latch is pulled out, the tool is rotated to the required angle, and the tool is locked on the welding bracket by the latch, so as to facilitate the assembly line operation according to the sequence of the stations, and the guardrail is used to separate the stations.

Description

Technical Field

[0001] The invention relates to the field of welding tooling, and in particular to a vehicle frame welding production line equipped with a rotating tooling. Background Art

[0002] Assembly line refers to a production method in which each production unit focuses on processing only a certain segment of the work. It has been widely used in the production and processing fields due to its high production efficiency and controllable quality stages.

[0003] At present, the welding of the entire frame is usually completed by one person during processing. However, the frame structure is complex and the number of welds is large, so welding leaks are inevitable, causing product quality problems and a high rework rate. At the same time, the work efficiency of one person welding the entire frame is low, and the requirements for personnel are high. When welding the frame, multiple surfaces need to be welded, and there are many welding accessories. Therefore, the frame production line has high requirements for the positioning of the frame. Summary of the invention

[0004] In order to solve the above technical problems, a frame welding production line equipped with a rotating tooling is provided to facilitate the positioning of the frame.

[0005] A frame welding assembly line equipped with a rotary tool comprises a crawler, a guardrail, a welding bracket and a rotary tool, wherein the crawler is installed on the ground, the pillars of the guardrail are installed on the ground near the crawler, the guardrail divides the crawler into at least two workstations, the welding bracket is installed on the crawler, the welding bracket comprises a bracket, a mounting plate and a latch, the mounting plate is installed on the upper end of the bracket, a rotation groove is provided on the upper end of the mounting plate, and a bracket positioning hole is provided on the lower side of the mounting plate; the rotary tool comprises a left positioning assembly, a right positioning sleeve plate and a steering axle bracket, the two ends of the steering axle bracket are respectively connected to the left positioning assembly and the right positioning sleeve plate, the left end of the left positioning assembly is provided with a flange plate, the left end of the flange plate is provided with a left rotating shaft, the right end of the right positioning sleeve plate is provided with a right rotating shaft, the flange plate is provided with a left positioning hole, the left rotating shaft can be rotatably installed on one welding bracket, and the right rotating shaft can be rotatably installed on another welding bracket, and the latch passes through the bracket positioning hole and the left positioning hole to lock the rotary tool on the welding bracket.

[0006] Preferably, the welding bracket also includes a rotating shaft and a bearing, two rotating shafts parallel to each other are provided on the upper side of the mounting plate, the bearings are embedded in the rotating shafts, the outer rings of the bearings protrude from the rotating groove, and the left rotating shaft or the right rotating shaft is arranged between the two outer rings of the bearings.

[0007] Preferably, mounting plates are respectively provided on the left and right sides of the upper end of the welding bracket, and the bracket positioning hole passes through the two mounting plates.

[0008] Preferably, a flexible shading strip is provided on the guardrail.

[0009] Preferably, the flexible shading tape is made of yellow plastic tape.

[0010] Preferably, the tooling also includes a drive axle assembly, the left end of the steering axle bracket is fixedly connected to the drive axle assembly, an arc-shaped plate is provided at the left end of the drive axle assembly, at least three groups of adjustment holes are provided on the arc-shaped plate, and a fixed through hole is provided at the right end of the left positioning assembly, and the left positioning assembly is installed on the arc-shaped plate by passing a pin through the fixed through hole and the adjustment hole.

[0011] Preferably, a universal wheel is provided at the lower end of the left positioning assembly.

[0012] Preferably, the right positioning sleeve also includes a connecting plate, and two ends of the connecting plate are respectively fixedly connected to the steering axle bracket and the right rotating shaft.

[0013] Preferably, a proximity switch is also provided on the support column of the guardrail.

[0014] Preferably, the present invention further comprises a control cabinet, and the control cabinet is respectively connected to the driving motor of the crawler and the proximity switch.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The steering bridge bracket is used to clamp the workpiece, and the left rotating shaft and the right rotating shaft at the left and right ends of the rotating tooling enable the rotating tooling to be rotatably installed on the two welding brackets. After the rotating tooling rotates an angle, the latch is passed through the bracket positioning hole and the left positioning hole to lock the rotating tooling on the welding bracket, thereby realizing the positioning of the workpiece. After completing a welding process, the crawler sends the workpiece to the next station, pulls out the latch, rotates the rotating tooling to the required welding angle, and locks the rotating tooling on the welding bracket through the latch, which is convenient for streamlined operation according to the sequence of stations, and the guardrail is used to separate stations; 2. A flexible shading belt, such as a yellow plastic belt, can be provided on the guardrail to block light and wind, and will not affect the transportation of the rotating tooling; 3. The workpiece welding process is divided into multiple processes, such as eight processes, and the welding time of each process is similar, which greatly improves work efficiency; 4. By fixing the left positioning assembly on different adjustment holes, the installation angles of the left positioning assembly and the drive axle assembly can be adjusted to improve applicability; 5. A proximity switch is provided on the pillar of the guardrail to detect the workpiece passing through and entering the workstation; 6. The welding position of the workpiece is adjusted by rotating the left and right rotating axes to facilitate flipping the frame and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the rotary tooling structure;

[0018] Figure 3 It is a structural schematic diagram of the right positioning sleeve;

[0019] Figure 4 It is a schematic diagram of the structure of the left positioning component;

[0020] Figure 5 It is a schematic diagram of the welding bracket structure.

[0021] Markings in the attached figure: 1-control cabinet, 2-guardrail, 3-track, 4-welding bracket, 5-rotating tooling,

[0022] 11-left positioning assembly, 111-left rotating shaft, 112-flange plate, 113-left positioning hole, 115-fixed through hole, 116-universal wheel, 117-left positioning bracket, 12-workpiece, 13-right positioning sleeve, 131-right rotating shaft, 132-connecting plate, 16-drive axle assembly, 161-arc plate, 162-adjusting hole, 17-steering axle bracket, 21-flexible shading belt,

[0023] 41-mounting plate, 42-rotating shaft, 43-bearing, 44-bracket positioning hole. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] A frame welding line equipped with a rotating tooling, such as Figures 1 to 5As shown, it includes a crawler 3, a guardrail 2, a welding bracket 4 and a rotating tool 5. The crawler 3 is installed on the ground, and the pillars of the guardrail 2 are installed on the ground near the crawler 3. The guardrail 2 divides the crawler 3 into two workstations, and the workstations can also be set to multiple positions according to requirements, such as eight; the welding bracket 4 is installed on the crawler 3, and the welding bracket 4 includes a bracket, a mounting plate 41 and a latch. The mounting plate 41 is installed on the upper end of the bracket, and a rotating groove is provided on the upper end of the mounting plate 41, and a bracket positioning hole 44 is provided on the lower side of the mounting plate 41; the rotating tool 5 includes a left positioning component 11, a right positioning sleeve plate 13 and a steering axle bracket 17, the two ends of the steering axle bracket 17 are respectively fixedly connected to the left positioning component 11 and the right positioning sleeve 13, the left end of the left positioning component 11 is provided with a flange plate 112, the left end of the flange plate 112 is provided with a left rotating shaft 111, the right end of the right positioning sleeve 13 is provided with a right rotating shaft 131, the flange plate 112 is provided with a left positioning hole 113, the left rotating shaft 111 is rotatably mounted on a welding bracket 4, the right rotating shaft 131 is rotatably mounted on another welding bracket, and the latch passes through the bracket positioning hole 44 and the left positioning hole 113 to lock the rotating tooling 5 on the welding bracket 4.

[0026] The steering bridge bracket 17 is used to clamp the workpiece 12. The left rotating shaft and the right rotating shaft at the left and right ends of the rotating tooling enable the rotating tooling to be rotatably installed on the two welding brackets. After the rotating tooling is rotated by an angle, the pin is passed through the bracket positioning hole 44 and the left positioning hole 113 to lock the rotating tooling 5 on the welding bracket 4, thereby realizing the positioning of the workpiece. After completing a welding process, the crawler conveys the workpiece to the next workstation, pulls out the pin, rotates the rotating tooling to the required welding angle, and locks the rotating tooling on the welding bracket 4 through the pin, which is convenient for assembly line operation according to the workstation sequence. The guardrail 2 is used to separate the workstations.

[0027] The welding bracket 4 may further include a rotating shaft 42 and a bearing 43. Two rotating shafts 42 are provided on the upper side of the mounting plate 41 and are equal to each other. The bearings 43 are embedded on the rotating shafts 42. The outer rings of the bearings 43 protrude from the rotating grooves. The left rotating shaft or the right rotating shaft is provided between the outer rings of the two bearings. The rotating tooling rotates more smoothly, which improves the efficiency of the rotation and the applicability.

[0028] The left and right sides of the upper end of the welding bracket 4 can be respectively provided with mounting plates 41, and the bracket positioning hole 44 passes through the two mounting plates. The rotating fixture is locked and not easy to shake. The rotating shaft can be installed between the left and right mounting plates.

[0029] The guardrail 2 may be provided with a flexible shading tape 21, such as a yellow plastic tape, for shading light and wind, and will not affect the transportation of the rotating tooling.

[0030] The rotary tooling 5 may also include a drive axle assembly 16, the left end of the steering axle bracket 17 is fixedly connected to the drive axle assembly 17, the left end of the drive axle assembly 16 is provided with an arc plate 161, the arc plate 161 is provided with three groups of adjustment holes 162, and more adjustment holes may also be provided, the left positioning assembly 11 also includes a left positioning bracket 117, the right end of the left positioning bracket is fixedly connected to the flange plate, the right end of the left positioning bracket 117 is provided with a fixing through hole 115, and the left positioning assembly 11 is installed on the arc plate 161 by passing a pin through the fixing through hole 115 and the adjustment hole 162. By fixing the left positioning assembly 11 on different adjustment holes, the installation angles of the left positioning assembly 11 and the drive axle assembly 16 are adjusted, thereby improving applicability.

[0031] A universal wheel 116 may be provided at the lower end of the left positioning assembly to facilitate the transportation of the rotating tooling.

[0032] The right positioning sleeve 13 may further include a connecting plate 132 , and two ends of the connecting plate 132 are fixedly connected to the steering axle bracket 1 and the right rotating shaft 131 , respectively.

[0033] The pillars of the guardrail 2 are also provided with proximity switches for detecting the passage of workpieces into corresponding workstations.

[0034] The present invention further includes a control cabinet 1, which is connected to the drive motor of the crawler 3 and the proximity switch. The control cabinet 1 is used to control the operation of the crawler 3, and the stroke of each operation is the length of one station. The electrical signal collected by the proximity switch is used to determine whether the workpiece passes through and enters the corresponding station, and the position of the workpiece is corrected by controlling the drive motor of the crawler.

[0035] The rotary tooling of the present invention is provided with workpiece clamping mechanisms on the front and rear sides respectively, and two workpieces can be processed simultaneously at the same station, which improves the work efficiency on the one hand, and makes the rotary tooling balanced on the front and rear sides on the other hand, making it easy to adjust the angle.

[0036] In a specific embodiment, the method of operation of the present invention includes:

[0037] The welding process is divided into eight steps, and the welding time of each step is similar;

[0038] Determine the welding time for each process, and determine the interval time of crawler drive according to the welding time;

[0039] The frame is placed on the rotating tooling, and the crawler conveys the frame to the work station;

[0040] The proximity switch on the guardrail detects the frame passing by, determines that the rotary tooling enters the workstation, and the crawler stops running;

[0041] The frame is turned over to the side to be welded, and welding is started after the latch is inserted and locked, and the welding process is completed within the set welding time;

[0042] The crawler belt runs to transport the frame to the next workstation until all welding processes are completed and the welded frame is unloaded.

[0043] The above is only a preferred embodiment 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 frame welding production line equipped with a rotating tool, comprising a crawler and a tool, characterized in that: Also includes welding brackets and guardrails, The crawler is installed on the ground, the support column of the guardrail is installed on the ground near the crawler, and the guardrail divides the crawler into at least two workstations. The welding bracket is installed on the crawler. The welding bracket comprises a bracket, a mounting plate and a latch, wherein the mounting plate is mounted on the upper end of the bracket, a rotation slot is provided on the upper end of the mounting plate, and a bracket positioning hole is provided on the lower side of the mounting plate; The tooling comprises a left positioning assembly, a right positioning sleeve and a steering axle bracket, and the two ends of the steering axle bracket are respectively connected to the left positioning assembly and the right positioning sleeve. The left end of the left positioning assembly is provided with a flange plate, the left end of the flange plate is provided with a left rotating shaft, the right end of the right positioning sleeve plate is provided with a right rotating shaft, the flange plate is provided with a left positioning hole, the left rotating shaft is rotatably mounted on a welding bracket, and the right rotating shaft is rotatably mounted on another welding bracket. The latch passes through the bracket positioning hole and the left positioning hole to lock the tooling on the welding bracket.

2. The frame welding assembly line equipped with a rotary tooling according to claim 1 is characterized in that: The welding bracket also includes a rotating shaft and a bearing. Two rotating shafts parallel to each other are provided on the upper side of the mounting plate. The bearings are embedded in the rotating shafts. The outer rings of the bearings protrude from the rotating groove. The left rotating shaft or the right rotating shaft is arranged between the two outer rings of the bearings.

3. The frame welding assembly line equipped with a rotary tooling according to claim 1 or 2, characterized in that: Mounting plates are respectively arranged on the left and right sides of the upper end of the welding bracket, and the bracket positioning hole passes through the two mounting plates.

4. The frame welding assembly line equipped with a rotary tooling according to claim 1 is characterized in that: A flexible light-shielding belt is arranged on the guardrail.

5. The frame welding assembly line equipped with a rotary tooling according to claim 4 is characterized in that: The flexible shading belt is a yellow plastic belt.

6. The frame welding assembly line equipped with a rotary tooling according to claim 1 or 2, characterized in that: The tooling also includes a drive axle assembly, the left end of the steering axle bracket is fixedly connected to the drive axle assembly, an arc-shaped plate is provided at the left end of the drive axle assembly, at least three groups of adjustment holes are provided on the arc-shaped plate, and a fixed through hole is provided at the right end of the left positioning assembly, and the left positioning assembly is installed on the arc-shaped plate by passing a pin through the fixed through hole and the adjustment hole.

7. The frame welding assembly line equipped with a rotary tooling according to claim 1 or 2, characterized in that: A universal wheel is arranged at the lower end of the left positioning assembly.

8. The frame welding assembly line equipped with a rotary tooling according to claim 1 or 2, characterized in that: The right positioning sleeve also includes a connecting plate, and two ends of the connecting plate are respectively fixedly connected to the steering axle bracket and the right rotating shaft.

9. The frame welding assembly line equipped with a rotary tooling according to claim 1 or 2, characterized in that: A proximity switch is also provided on the pillar of the guardrail.

10. The frame welding assembly line equipped with a rotary tooling according to claim 9, characterized in that: It also includes a control cabinet, which is connected to the driving motor of the crawler and the proximity switch respectively.

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