Positioner for automobile chassis processing

Abstract

The present invention relates to the technical field of positioners, and proposes a positioner for automobile chassis processing, comprising a main arm rotating on a base and a support arm located on the main arm, the main arm and the support arm are combined in an "I" shape, the rotation center of the main arm is located at the geometric center of the main arm, a plurality of mounting seats are rotatably arranged at one end of the support arm away from the main arm, the rotation axis of the mounting seats is not parallel to the rotation axis of the main arm, and also includes: a plurality of swing rods, one end of the swing rod is rotatably arranged on the support arm; a plurality of balancing blocks are arranged at the other end of the swing rod, after the swing rod rotates, the balancing block is close to or away from the main arm, and the balancing block is used to balance the weight on both sides of the main arm. The above technical scheme solves the problem in the prior art that when disassembling and assembling workpieces, the shaft itself is in an unbalanced state, resulting in uneven force on the shaft itself, resulting in a decrease in service life.

Description

Technical Field

[0001] The invention relates to the technical field of positioners, and in particular to a positioner for machining automobile chassis. Background Art

[0002] As a key component of automobiles, the welding quality of automobile chassis is directly related to the safety, stability and durability of the whole vehicle. The use of positioners can greatly improve the efficiency and quality of automobile chassis welding.

[0003] In order to improve production efficiency, the existing three-axis positioner usually adopts a double-station form for production operations. One station is used for welding, and the other side is used for disassembly and assembly. This method saves installation and removal time. However, when the welded part on one side is removed and reinstalled, the weight of the workpieces installed on the two different stations of the positioner is not the same. The different weights will cause uneven force on the middle bearing of the positioner. The bearing on the side with the heavier station will be under greater pressure, which will accelerate wear. Under long-term use, the service life of the bearing will be greatly shortened, increasing the maintenance cost of the equipment. Summary of the invention

[0004] The present invention provides a positioner for automobile chassis processing, which solves the problem in the related art that after the workpieces are disassembled and assembled, the positioner's own rotating shaft is subjected to uneven force due to the different weights of the workpieces themselves, resulting in a reduced service life.

[0005] The technical solution of the present invention is as follows:

[0006] A positioner for processing automobile chassis, comprising: a base, a main arm rotating on the base, and two groups of support arms located on both sides of the main arm, characterized in that the main arm and the support arms are combined in an "I" shape, the rotation center of the main arm is located at the geometric center of the main arm, a plurality of mounting seats are rotatably arranged at one end of the support arm away from the main arm, and the rotation axis of the mounting seat is not parallel to the rotation axis of the main arm, and further comprising:

[0007] There are a plurality of swing rods, which are respectively arranged on two groups of supporting arms on both sides of the main arm, and one end of the swing rod is rotatably arranged on the supporting arm;

[0008] There are several balancing blocks, which are arranged at the other end of the swing arm. After the swing arm rotates, the balancing blocks are close to or away from the main arm. The balancing blocks are used to balance the weight on both sides of the main arm.

[0009] As a further technical solution, the main arm has a receiving cavity, the support arm has a receiving space, the receiving cavity is connected to the receiving space, the swing rod is located in the receiving space, and further includes:

[0010] A plurality of winding shafts are rotatably disposed in the accommodating cavity;

[0011] There are a plurality of reversing wheels, which are rotatably arranged in the accommodation space;

[0012] The connecting wires are provided with a plurality of wires, one end of which is arranged on the swing rod, and the other end of which is wound on the winding shaft after passing through the reversing wheel.

[0013] As a further technical solution, it also includes:

[0014] A rotation driving member is arranged in the accommodating cavity, and the rotation driving member is used to drive the surrounding axis to rotate.

[0015] As a further technical solution, the balancing block is composed of a plurality of counterweight blocks, and a plurality of the counterweight blocks have through holes, and further comprises:

[0016] The mounting bolts are detachably arranged on the balancing blocks, and the mounting bolts cooperate with the through holes to fix a plurality of the balancing blocks.

[0017] As a further technical solution, the support arms are four, and the two support arms at one end of the main arm away from the rotation center are symmetrical to each other. The connecting wires in the two symmetrical support arms are wound around one winding axis and staggered, and the two connecting wires are wound in opposite directions.

[0018] As a further technical solution, the initial positions of the swing rods are different.

[0019] As a further technical solution, the balancing block is slidably arranged on the swing rod, and the swing rod has a plurality of mounting holes, and the mounting bolts cooperate with the mounting holes to fix the balancing block.

[0020] As a further technical solution, the support arm has an adjustment hole, and further comprises:

[0021] An installation door is rotatably arranged on the support arm, and the installation door opens or closes the adjustment hole after rotation;

[0022] A viewing window is arranged on the installation door, and the viewing window is used to observe the situation in the accommodating space.

[0023] As a further technical solution, it also includes:

[0024] A welding frame, arranged on the two mounting seats located on one side of the main arm;

[0025] The sensing component is arranged on the welding frame, and the sensing component is used to detect whether the welding component is installed.

[0026] As a further technical solution, it also includes:

[0027] The control device is used to receive the signal of the sensing element and drive the rotating driving element to move.

[0028] The working principle and beneficial effects of the present invention are:

[0029] In the present invention, when welding is performed, the "I"-shaped main arm and support arm can effectively improve the overall work efficiency. When welding is performed at one station, the other side can be installed or disassembled at the same time, saving work time. However, after the workpiece on one side is removed, the two stations of the positioner are in an unbalanced state. In this state, the force on the rotating shaft between the main arm and the base is uneven, which can easily lead to increased wear. At this time, by rotating the swing rod, the position of the balance block is adjusted to balance the weight on both sides of the main arm, which can alleviate the degree of wear on the rotating shaft and bearings due to uneven weight and improve the service life of the positioner. At the same time, the use of the swing rod and the counterweight block can enable the positioner to achieve mixed welding between workpieces of different weights. While welding, the weight on both sides can be balanced by adjusting the swing rod. When welding welded parts of different weights, the wear problem of the positioner can be effectively alleviated, and the service life of the positioner can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0033] Figure 3 For the present invention Figure 2 A partial enlarged schematic diagram in the middle;

[0034] Figure 4 It is a structural schematic diagram of the swing rod in the present invention;

[0035] Figure 5 A schematic diagram of the internal structure of the present invention from another perspective;

[0036] Figure 6 For the present invention Figure 5 A local enlarged schematic diagram of point B in the middle.

[0037] In the figure: 1. base, 2. main arm, 3. support arm, 4. mounting seat, 5. swing rod, 6. balance block, 7. through hole, 8. mounting bolt, 9. accommodating chamber, 10. accommodating space, 11. winding shaft, 12. reversing wheel, 13. connecting line, 14. mounting hole, 15. adjustment hole, 16. mounting door, 17. window, 18. rotating drive part, 19. welding frame, 20. induction part, 22. counterweight block. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, they can also be understood as further technical solutions without creative work. In some figures, components with the same structure or function are only schematically illustrated, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0039] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] Reference Figure 1 to Figure 6 , which is the first embodiment of the present invention, proposes a positioner for automobile chassis processing, comprising: a base 1 and a main arm 2 rotating on the base 1 and a support arm 3 located on the main arm 2, characterized in that the main arm 2 and the support arm 3 are combined in an "I" shape, the rotation center of the main arm 2 is located at the geometric center of the main arm 2, a plurality of mounting seats 4 are rotatably arranged at one end of the support arm 3 away from the main arm 2, and the rotation axis of the mounting seat 4 is not parallel to the rotation axis of the main arm 2, and also includes: a plurality of swing rods 5, one end of the swing rod 5 is rotatably arranged on the support arm 3; a plurality of balancing blocks 6 are arranged at the other end of the swing rod 5, after the swing rod 5 rotates, the balancing block 6 approaches or moves away from the main arm 2, and the balancing block 6 is used to balance the weight on both sides of the main arm 2.

[0042] In this embodiment, when welding, the "I"-shaped main arm 2 and support arm 3 can effectively improve the overall work efficiency. When welding is performed at one station, the other side can be installed or disassembled at the same time, saving work time. However, after the workpiece on one side is removed, the two stations of the positioner are in an unbalanced state, which will cause uneven force on the rotating shaft between the main arm 2 and the base 1. After the workpieces on both sides are installed, the processing states of the workpieces on both sides are also different. Therefore, the weights on both sides of the positioner are also different when the positioner is shifted, which will cause more serious wear on the intermediate rotating shaft. At this time, by rotating the swing rod 5, the position of the balance block 6 is adjusted to balance the weight on both sides of the main arm 2, which can alleviate the degree of wear on the rotating shaft and bearings due to uneven weight, and improve the service life of the positioner. At the same time, the use of the swing rod 5 and the counterweight block can enable the positioner to achieve mixed welding between workpieces of different weights. While welding, the weights on both sides are balanced by adjusting the swing rod 5. When welding welded parts of different weights, the wear problem of the positioner will be effectively alleviated, and the service life of the positioner will be improved. Moreover, the above method can also enable the positioner to weld different workpieces. Even if the weights of the workpieces on both sides are originally different, as long as they are within the adjustment range of the balance block 6, the two different workpieces can be welded using the same positioner, further improving work efficiency.

[0043] As a further technical solution, the balance block 6 is composed of several counterweight blocks, several of the counterweight blocks have through holes 7, and also includes: mounting bolts 8 detachably arranged on the balance block 6, and the mounting bolts 8 cooperate with the through holes 7 to fix the several balance blocks 6.

[0044] In this embodiment, the combination of multiple counterweights can further expand the adjustment range of the balance block 6, ensuring the applicability of the balance block 6. At the same time, it can also make more detailed judgments according to actual conditions, thereby improving the accuracy of adjustment.

[0045] As a further technical solution, the main arm 2 has a accommodating cavity 9, the support arm 3 has a accommodating space 10, the accommodating cavity 9 and the accommodating space 10 are connected, the swing rod 5 is located in the accommodating space 10, and also includes: a plurality of winding shafts 11, which are rotatably arranged in the accommodating cavity 9; a plurality of reversing wheels 12, which are rotatably arranged in the accommodating space 10; a plurality of connecting wires 13, one end of which is arranged on the swing rod 5, and the other end is wound around the winding shaft 11 after passing through the reversing wheel 12.

[0046] In this embodiment, the winding shaft 11 winds the connecting wire 13, and the length of the connecting wire wound on the winding shaft 11 can be changed by rotating the winding shaft 11, so that the swing rod 5 at the other end of the connecting wire 13 is driven to rotate, so that the position of the balance block 6 on the swing rod 5 changes, so that the weight on both sides of the positioner is balanced. Adjustment by adjusting the winding shaft can ensure that the adjustment speed is fast enough, reduce the duration of the unbalanced state on both sides of the positioner, and also make the balancing process fast and continuous.

[0047] As a further technical solution, the support arms 3 have four, and the two support arms 3 at one end of the main arm 2 away from the rotation center are symmetrical to each other. The connecting wires 13 in the two symmetrical support arms 3 are wound around one of the winding shafts 11 and are staggered, and the winding directions of the two connecting wires 13 are opposite.

[0048] In this embodiment, in order to maintain the balance and stability of the positioner, the symmetrical arms 3 can bear the same force and torque during processing, avoiding the tilt or deformation of the equipment due to uneven force. The connecting wires 13 in the two symmetrical arms 3 are wound around a winding shaft 11 and staggered. This design can achieve synchronous adjustment of the balance blocks 6 on the two arms 3, thereby improving the efficiency and accuracy of the balance adjustment.

[0049] In this embodiment, the adjustment hole 15 on the support arm 3 provides a convenient passage for operation and maintenance. During the processing of the automobile chassis, it may be necessary to adjust, repair or replace the components in the accommodating space 10. The existence of the adjustment hole 15 allows the operator to approach these components more conveniently without disassembling the entire support arm 3 or other parts of the positioner. The window 17 on the installation door 16 provides a way for the operator to observe the situation in the accommodating space 10. During the processing of the automobile chassis, the operator can monitor the operating status of the internal components in real time through the window 17, such as the movement of the connecting line 13, the rotation of the reversing wheel 12, etc. This helps to promptly discover potential problems, such as abnormal winding of the connecting line 13, damage to components, etc., and take corresponding measures to deal with them.

[0050] As a further technical solution, it also includes: a rotation driving member 18 is arranged in the accommodating cavity 9, and the rotation driving member 18 is used to drive the winding shaft 11 to rotate.

[0051] In this embodiment, the rotating drive member 18 is arranged in the accommodating chamber 9, which makes full use of the internal space of the main arm 2, making the overall structure of the positioner more compact. This design not only reduces the external space occupied by the equipment, but also plays a certain protective role for the rotating drive member 18, preventing it from being affected and damaged by the external environment. The rotating drive member 18 is used to drive the winding shaft 11 to rotate. By controlling the operation of the rotating drive member 18, the rotation direction and speed of the winding shaft 11 can be accurately adjusted, thereby realizing the retracting and releasing operation of the connecting line 13.

[0052] As a further technical solution, it also includes: a welding frame 19 is arranged on the two mounting seats 4 located on one side of the main arm 2; a sensor 20 is arranged on the welding frame 19, and the sensor 20 is used to detect whether the welding part is installed.

[0053] In this embodiment, the welding frame 19 is arranged on two mounting seats 4 located on one side of the main arm 2, providing a special support and fixing structure for the welding operation of the automobile chassis. This design allows the welding work to be carried out more stably, and improves the accuracy and quality of welding. The sensor 20 is arranged on the welding frame 19 to detect whether the welding part is installed. The stable support of the welding frame 19 and the accurate detection of the sensor 20 can ensure that the position of the welding part is accurate and fixed firmly during the welding process. This helps to improve the accuracy and quality of welding and reduce the occurrence of welding defects.

[0054] As a further technical solution, it also includes: a control device is used to receive the signal of the sensing element 20 and drive the rotating driving element 18 to move.

[0055] In this embodiment, the operator inputs the weight of the welded parts on both sides and the weight and position of the internal counterweight block into the control device. The system will calculate the data and work out what angle the swing bar 5 needs to be to balance the weight on both sides. At the same time, the control device can receive the signal of the sensor 20 to realize intelligent control of the entire positioner system. When the sensor 20 detects that the welded parts are installed in place, it will transmit a signal to the control device, indicating that the welded parts have been installed on the welding frame 19 at this position. The rotating drive member 18 will be controlled to ensure that both sides are always in a balanced state, reduce the generation of wear, and increase the service life. If the range of regulation is exceeded, the device will sound an alarm, indicating that the weight or position of the counterweight block needs to be adjusted to ensure the adjustable range of the entire device.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Positioner for automobile chassis processing, including: A base (1), a main arm (2) rotating on the base (1), and two groups of support arms (3) on both sides of the main arm (2), characterized in that the main arm (2) and the support arms (3) are combined to form an "I" shape, the rotation center of the main arm (2) is located at the geometric center of the main arm (2), a plurality of mounting seats (4) are rotatably arranged at one end of the support arm (3) away from the main arm (2), the rotation axis of the mounting seat (4) is not parallel to the rotation axis of the main arm (2), and it is characterized in that it also includes: A plurality of swing rods (5) are respectively arranged on two groups of support arms (3) on both sides of the main arm (2); one end of the swing rod (5) is rotatably arranged on the support arm (3); A plurality of balancing blocks (6) are arranged at the other end of the swing arm (5); after the swing arm (5) rotates, the balancing blocks (6) move closer to or farther from the main arm (2); the balancing blocks (6) are used to balance the weight on both sides of the main arm (2); The main arm (2) has a receiving cavity (9), the support arm (3) has a receiving space (10), the receiving cavity (9) and the receiving space (10) are in communication, the swing rod (5) is located in the receiving space (10), and further comprises: A plurality of winding shafts (11) are rotatably disposed in the accommodating cavity (9); A plurality of reversing wheels (12) rotatably disposed in the accommodating space (10); A plurality of connecting wires (13), one end of which is arranged on the swing rod (5) and the other end of which is wound onto the winding shaft (11) after passing through the reversing wheel (12); The support arms (3) have four parts, and two of the support arms (3) at one end of the main arm (2) away from the rotation center are symmetrical to each other. The connecting wires (13) in the two symmetrical support arms (3) are wound around one winding shaft (11) and are wound in an offset manner, and the winding directions of the two connecting wires (13) are opposite.

2. The positioner for automobile chassis processing according to claim 1, characterized in that: Also includes: A rotating drive member (18) is disposed in the accommodating chamber (9), and the rotating drive member (18) is used to drive the winding shaft (11) to rotate.

3. The positioner for automobile chassis processing according to claim 1, characterized in that: The balancing block (6) is composed of a plurality of counterweight blocks (22), wherein the plurality of counterweight blocks (22) have through holes (7), and further comprises: A mounting bolt (8) is detachably arranged on the balancing block (6); the mounting bolt (8) cooperates with the through hole (7) to fix a plurality of the balancing blocks (6).

4. The positioner for automobile chassis processing according to claim 1, characterized in that: The initial positions of the swing rod (5) are different.

5. The positioner for automobile chassis processing according to claim 3, characterized in that: The balancing block (6) is slidably arranged on the swing rod (5); the swing rod (5) has a plurality of mounting holes (14); and the mounting bolts (8) and the mounting holes (14) cooperate to fix the balancing block (6).

6. The positioner for automobile chassis processing according to claim 2, characterized in that: The support arm (3) is provided with an adjustment hole (15), and further comprises: A mounting door (16) is rotatably mounted on the support arm (3), wherein the mounting door (16) opens or closes the adjustment hole (15) after rotation; A viewing window (17) is provided on the installation door (16), and the viewing window (17) is used to observe the situation in the accommodation space (10).

7. The positioner for automobile chassis processing according to claim 6, characterized in that: Also includes: A welding frame (19) is arranged on the two mounting seats (4) located on one side of the main arm (2); A sensing component (20) is arranged on the welding frame (19), and the sensing component (20) is used to detect whether the welding component is installed.

8. The positioner for automobile chassis processing according to claim 7, characterized in that: Also includes: A control device is used to receive a signal from the sensing element (20) and drive the rotating driving element (18) to move.

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