Self-adaptive radial plate welding device

Abstract

The utility model discloses a self-adaptive radial plate welding device, which belongs to the field of machining and comprises welding guns, the welding guns are connected onto a transverse rack through Z-shaped connecting blocks, the transverse rack is connected onto a longitudinal support frame through second sliding blocks, the welding guns are arranged in bilateral symmetry, and the cross section of each connecting block is Z-shaped. Comprising a first connecting body connected with a first transmission mechanism and a second connecting body with a vertical circular through hole, the first connecting body is connected with the first transmission mechanism, and the second connecting body is connected with a welding gun. According to the technical scheme, the problem of flexible welding of wheels of different specifications in a production line can be solved, the function of self-adaptive welding of the wheels in an automatic line is achieved, the position of a welding gun does not need to be manually adjusted, manpower is liberated to a great extent, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, concretely relates to a self -adaptation welding spoke device. BACKGROUND

[0002] In modern manufacturing production, welding is a kind of important process method, is widely used in mechanical manufacturing, automobile manufacturing, aerospace, electronics industry and other fields.In mechanical manufacturing, welding plays a pivotal role.Various mechanical equipment frame, shell and key parts often need to be connected by welding.For example, in the automatic line of a car wheel product in the automobile manufacturing process, it needs to meet the mixed production function of multiple specifications, realizes the flexible production line.However, different specifications of the wheel exist differences in size and offset, which makes the welding gun position need to be adjusted according to the size and offset of the wheel in the automatic welding process.If this problem cannot be solved, the mixed production function of multiple products cannot be realized.And after the automatic production line switches to produce wheel products, the welding gun position needs to be adjusted by manual, so that the accuracy of the welding gun position is reduced, which further affects the welding quality of the product, and also reduces the production efficiency.

[0003] Patent CN217452703U discloses a kind of welding device of rim and spoke, it is related to welding device technical field, including rack, placing platform and welding gun fixed frame, placing platform is installed with the rotation seat of a connection rotating drive mechanism, several support plates are slidably installed on rotation seat, support plate is connected with bracing mechanism, the inner wall of each support plate and rotation seat are commonly installed with compression spring, the utility model can adjust welding position while clamping rim, solve the problem that rim needs to be clamped multiple times in welding process, but the degree of automation is not high, still needs to find the next welding point after adjusting the position of rim and spoke by manual braking in welding process. UTILITARIAN CONTENT

[0004] The utility model aims at solving the flexible welding problem of different specifications of wheel in production line, such as the different specifications and models of wheel product in production line, which need manual adjustment of welding gun position, resulting in welding gun position deviation and affecting product welding quality.

[0005] To solve the above problems, the technical scheme adopted by the present application is as follows: a self-adaptive welding spoke device, comprising a welding gun, the welding gun is connected to the horizontal rack through the Z-shaped connecting block, the horizontal rack is connected to the vertical support frame through the second sliding block, and the welding gun is placed symmetrically left and right.

[0006] Further, the cross section of the connecting block is Z-shaped, including a first connecting body and a second connecting body with a vertical circular hole, the first connecting body is connected with the first transmission mechanism, and the second connecting body is connected with the welding gun.

[0007] Further, the first connecting body is connected with a flat first sliding block, the upper surface and the lateral surface of the first sliding block are provided with first screw grooves, and the first transmission mechanism comprises horizontal first guide rails, and the first sliding block is installed on the first guide rails through the first screw grooves combined with fixing screws.

[0008] Further, the transverse frame comprises a first transverse arm and a second transverse arm, the first transverse arm and the second transverse arm are both provided with a first driving motor at an end away from the welding gun, and the first transverse arm and the second transverse arm are adjacent and placed side by side at an end without the first driving motor.

[0009] Further, the transverse frame is connected to the second sliding block, the longitudinal supporting frame is provided with longitudinal second guide rails, and the second sliding block is slidably connected to the second guide rails.

[0010] Further, the longitudinal supporting frame further comprises a second transmission mechanism and a second driving motor installed on the top, and the longitudinal supporting frame is fixedly installed on the wall body.

[0011] Further, the welding gun comprises a vertical long rod fixedly arranged in a circular through hole and a goose neck nozzle, and the welding gun has two symmetrical welding guns.

[0012] Further, the two goose neck nozzles are oppositely arranged, and a circular inner support type rotary table with a center same as the symmetry axis is arranged below the symmetry axis between the two welding guns.

[0013] Further, the inner support type rotary table is provided with a set of transverse distance measuring photoelectric cells oppositely arranged on the center axis.

[0014] Further, a set of longitudinal distance measuring photoelectric cells are hung above the edges of the inner support type rotary table, and the two longitudinal distance measuring photoelectric cells are located in the same vertical plane as the transverse distance measuring photoelectric cells.

[0015] Compared with the prior art, the technical effects achieved by the utility model are as follows.

[0016] 1. Only the wheel is placed in the inner support type rotary table, the transverse distance measuring photoelectric cells and the longitudinal distance measuring photoelectric cells measure the distance to generate the position signal, the transverse frame and the longitudinal supporting frame process the position signal obtained from the transverse distance measuring photoelectric cells and the longitudinal distance measuring photoelectric cells, drive the welding gun to displace and automatically adjust the position and start welding; in this way, the function of self-adaptive welding of the wheel in the automatic line is realized, the position of the welding gun does not need to be manually adjusted, and the human resources are greatly liberated.

[0017] 2. The two welding guns work simultaneously during the welding process, that is, the two welding points of the rim and the spoke are welded simultaneously; and the inner support type rotary table rotates at a constant speed during the welding process, and the position of the rim and the spoke does not need to be manually adjusted to switch the welding points, thereby improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 It is a detailed structural diagram of the transverse frame and longitudinal support frame of the utility model.

[0020] Figure 3 This is a detailed structural diagram of the first cross arm of the utility model.

[0021] Explanation of the accompanying symbols: 1. welding gun; 11. vertical long rod; 12. gooseneck nozzle; 2. longitudinal support frame; 21. second guide rail; 22. second slider; 23. second transmission mechanism; 24. second drive motor; 3. longitudinal ranging photoelectric; 4. transverse frame; 41. first guide rail; 42. connecting block; 421. first connector; 422. second connector; 43. first transmission mechanism; 44. first drive motor; 45 circular through hole; 46. first slider; 461. threaded groove; 462. fixing screw; 47. first cross arm; 48. second cross arm; 5. transverse ranging photoelectric; 6. internal support rotating table. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present application will be described in further detail below with reference to the accompanying drawings.

[0023] Example 1: Figure 3 As shown, as a specific embodiment of the present invention, a frame structure is disclosed, which includes a welding gun 1 for welding, a first transmission mechanism 43 for driving the welding gun 1 to do lateral displacement, and a second transmission mechanism 23 for driving the welding gun 1 to move up and down.

[0024] like Figure 3 As shown, the first transmission mechanism 43 is mounted on a horizontal first crossbar 47. The first crossbar 47 also includes a linear first guide rail 41 and a first drive motor 44 mounted on the left end. A first slider 46 is connected to the first guide rail 41. The first slider 46 has four threaded grooves 461, which can be connected to the first guide rail 41 using set screws 462 that engage the threaded grooves 461. The first slider 46 is connected to a Z-shaped connecting block 42. The first slider 46 and the connecting block 42 are connected by a rectangular first connector 421 in the upper left portion of the connecting block. The lower right portion of the connecting block contains a second connector 422 with a vertical circular through-hole 45, which is used to secure the welding gun 1. The first transmission mechanism 43 uses the power provided by the first drive motor 44 to drive the first slider 46 to move left and right. The first slider 46 then drives the welding gun 1 to the desired welding position.

[0025] As shown in Figure 3 , the second transmission mechanism 23 is installed on the vertical longitudinal support frame 2, the first cross arm 47 is also connected to the longitudinal support frame 2 through the second sliding block 22, and the longitudinal support frame 2 further comprises a vertical linear second guide rail 21 and a second driving motor 24 installed at the top end. On the basis of the power provided by the second driving motor 24, the second transmission mechanism 23 drives the second sliding block 22 to drive the first cross arm 47 to move up and down on the second guide rail 21, and the two cooperate to realize the lifting of the welding gun 1. And the longitudinal support frame 2 can be fixed on the wall, so that the whole device can be hung at any suitable position.

[0026] Embodiment 2: As shown in Figure 1 , as a specific embodiment of the present application, a self-adaptive welding spoke device is disclosed, which comprises a welding gun 1 for welding spokes and rims; a longitudinal support frame 2 for supporting the device to hang the welding gun and control the welding gun 1 to move up and down, a longitudinal distance measuring photoelectric 3 for measuring the height of the wheel spoke to determine the longitudinal position of the welding gun 1 and transmit the position signal to the longitudinal support frame 2; a transverse frame 4 for controlling the welding gun 1 to move left and right, a transverse distance measuring photoelectric 3 for measuring the diameter of the place where the wheel spoke is placed to determine the transverse position of the welding gun 1 and transmit the position signal to the transverse frame 2; and an inner support rotary table 6 at the bottom of the device for placing the wheel.

[0027] As shown in Figure 1 , the welding machine of a self-adaptive welding spoke device is located at the center of the whole device, which is composed of two parallel arranged welding guns 1, the welding gun 1 comprises a cylindrical vertical long rod 11 for clamping and fixing, and a goose neck nozzle 12, the goose neck nozzles 12 of the welding guns 1 are vertically and fixedly arranged on the transverse frame in parallel, and the outlets of the goose neck nozzles 2 are all outwardly arranged so that the two goose neck nozzles 2 form a transverse straight line.

[0028] As shown in Figure 1 and Figure 2 , the transverse frame 4 is divided into left and right groups, the first cross arm 47 on the left and the second cross arm 48 on the right, both of which are connected to the welding gun 1 through the connecting block 42, and the first cross arm 47 and the second cross arm 48 are transversely and horizontally arranged in a Figure 2 relationship as shown, and the two cross arms are left-right symmetrical.

[0029] As shown in Figure 2 and Figure 3As shown, the cross section of the connecting block 42 is Z-shaped, including the first connecting body 421 in the shape of a rectangular body on the upper left and the second connecting body 422 in the shape of a rectangular body on the lower right; the second connecting body 422 is provided with a vertical circular through hole 45 penetrating from top to bottom, and the diameter of the circular through hole 45 is the same as the diameter of the vertical long rod 11; the connecting part between the first connecting body 421 and the second connecting body 422 is a triangular body with an upper surface with a certain curvature on one end and an inclined lower surface, which can increase the stability of the structure of the connecting block 42 and make the stress concentration not easy to deform, and the upper surface with a certain curvature facilitates the installation of the long rod 11 of the welding gun 1 into the circular through hole 45 of the second connecting body 422.

[0030] As shown in Figure 3 the connecting block 42 is connected to the first sliding block 46 through the first connecting body 421, and the upper surface and the front surface of the first sliding block 46 are respectively provided with two threaded grooves 461, and four fixing screws 462 combined with the four threaded grooves 461 can be used to install the first sliding block 46 on the first guide rail 41; the material of the first sliding block 42 is high-strength aluminum alloy, engineering plastic, etc., which has the characteristics of light weight and high strength.

[0031] As shown in Figure 3 the first horizontal arm 47 on the left is provided with a horizontal linear first guide rail 41, and the first guide rail 41 is preferably made of high-strength aluminum alloy, alloy steel or stainless steel, etc., which can make the guide rail have good wear resistance, corrosion resistance and rigidity; the precision of the guide rail directly affects the movement precision of the linear module, and high-precision guide rails can ensure the stability and accuracy of the linear module during movement, so as preferred, ball guide rails and roller guide rails have the advantages of high precision and strong bearing capacity; the left end of the first horizontal arm 47 is provided with a first driving motor 44, which is used to drive the first transmission mechanism 43 to drive the first sliding block 46 to slide left and right.

[0032] As shown in Figure 2 the second horizontal arm 48 is the same in structure as the first horizontal arm 47 and is symmetrically installed on the longitudinal support frame 2, so that the two first driving motors 44 are installed at the left and right ends of the horizontal frame 4, and the two connecting blocks 42 are jointly installed in the shape of an inverted "several" on the horizontal frame 4, and the orientations of the two gooseneck nozzles 12 and the extension directions of the corresponding first guide rails 41 to the first driving motor 44 are consistent. Because the positions of the two welding guns 1 are always symmetrical with respect to a fixed axis in the initial position, the moving distance of each of the two welding guns is the same each time, and after moving to the target position, they are still symmetrical with respect to the original symmetrical axis.

[0033] As shown in Figure 2 and Figure 3As shown, the longitudinal support frame 2 includes a rectangular second guide rail 21 in the same direction, and the transverse frame 4 is connected to the longitudinal support frame 2, and the connecting body therebetween is a flat second slider 22 in the shape of an irregular rectangular body mounted on the second guide rail 21, and the upper end of the longitudinal support frame 2 is provided with a second driving motor 24 for providing power to the second driving mechanism 23, and the second slider 22 driven by the second driving mechanism 23 moves up and down to adjust the position of the welding gun 1.

[0034] As shown in Figure 2 , the transverse frame 4 and the longitudinal support frame 2 are provided with transmission mechanisms and motors, common transmission mechanisms include screw transmission, synchronous belt transmission, gear and rack transmission, etc., screw transmission has high precision and strong load capacity, but the speed is relatively slow; synchronous belt transmission has high speed and low cost, but the precision and load capacity are relatively low; gear and rack transmission has high speed and strong load capacity, but the precision is relatively low, and the screw transmission is preferred in this embodiment; common motors include stepper motors and servo motors, etc., the stepper motor has low cost and simple control, but the precision and speed are relatively low; the servo motor has high precision, high speed and fast response, and the servo motor is preferred in this embodiment.

[0035] As shown in Figure 2 , the longitudinal support frame 2 has two left and right symmetrical ones, which are connected with the first transverse arm 47 and the second transverse arm 48 respectively, and the longitudinal support frame 2 can be directly installed on the wall, so that the two welding guns 1 can be symmetrically hung above the inner support type rotary table 6. The inner support type rotary table 6 is a circular rotary table for placing the rim and the spoke plate, which is installed at the bottom of the device, and the center of the circular rotary table is always on the vertical downward extension line of the symmetry axis of the two welding guns 1, so that the installation can make the spout of the welding gun 1 always at the edge of the rotating inner support type rotary table 6 to ensure that the spoke plate and the rim are normally welded together.

[0036] As shown in Figure 1 , an adaptive spoke plate welding device further comprises two transverse distance measuring photoelectricities 5 installed on the outside of the inner support type rotary table 6, the transverse distance measuring photoelectricity 5 is placed on the outer extension line of one symmetry axis of the inner support type rotary table 6, and the straight line where the group of transverse distance measuring photoelectricities 5 is located is perpendicular to the plane where the transverse frame 4 is located, for measuring the diameter of the spoke plate welding; above the inner support type rotary table 6, there is also a group of two longitudinal distance measuring photoelectricities 3, the longitudinal distance measuring photoelectricity 3 is located on a straight line perpendicular to the plane where the transverse frame 4 is located, the longitudinal distance measuring photoelectricity 3 is in the same plane as the transverse distance measuring photoelectricity 5, and is located directly above the edge of the inner support type rotary table 6, for measuring the height of the spoke plate edge welding.

[0037] As shown in Figure 1As shown, the longitudinal distance measurement photoelectric device 3 consists of a distance measurement system and a signal processing system. The distance measurement system includes a light source, an optical system, and a photodetector. Its primary operating mode is that the light source emits a specific light signal, such as laser or infrared, and then receives the light signal reflected from the target object. Based on the propagation speed of light and the round-trip time, the distance between the device and the target object can be accurately calculated. The signal processing system transmits the received signal to the motor's signal receiving system, which transmits the measured web edge weld height to the second drive motor 24.

[0038] In this embodiment, laser ranging photoelectric devices with good directionality, high brightness and good monochromaticity are preferably used, which can provide high-precision ranging capabilities; the optical system is usually composed of optical elements such as lenses and reflectors, which are used to focus and collimate the light emitted by the light source into a beam of parallel light, and then collect the light reflected from the target object and focus it on the photodetector; the photodetector converts the received light signal into an electrical signal, and a photodiode can be used, which has the advantages of fast response speed, high sensitivity, good linearity, etc., and is suitable for various ranging photoelectric devices.

[0039] like Figure 1 As shown, the lateral distance measurement photoelectric device 5 consists of a distance measurement system and a signal processing system. The distance measurement system transmits a laser to the edge of the welded web, receives the reflected light signal, and calculates the web diameter based on the propagation speed and round-trip time. The signal processing system then transmits the converted electrical signal to the first drive motor 44.

[0040] like Figure 1 As shown, both the first drive motor 44 and the second drive motor 24 are equipped with signal receiving systems. The signal receiving system of the first drive motor 44 is used to receive signals from the transverse ranging photoelectric device 5. The motor then processes the signals and transmits the transmission mode to the first transmission mechanism 43. Finally, the first transmission mechanism 43 moves the welding gun 1 to the appropriate position for welding. The second drive motor 24 is used to receive electrical signals from the longitudinal ranging photoelectric device 3, processes the received signals, and transmits the transmission mode to the second transmission mechanism 23. The second transmission mechanism 23 moves the welding gun 1 to the appropriate position for welding.

[0041] The specific operation process of the adaptive web welding device of the present invention is as follows: After assembling the rim and web to be welded, place them at the center of the internally supported rotating table 6. Then, the transverse ranging photoelectric device 5 is activated to begin distance measurement. The transverse ranging photoelectric device is used to determine the diameter of the wheel. After measurement and calculation, an electrical signal is sent to the servo motor of the transverse frame 4. After receiving the position signal, the transverse frame 4 uses the first transmission mechanism 43 to drive the welding gun 1 to the appropriate position in the horizontal direction. At this time, the two welding guns 1 are still symmetrically distributed about the axis of symmetry of the initial position. While the transverse ranging photoelectric device 5 is operating, the longitudinal ranging photoelectric device 3 also starts operating to measure the height of the web edge. The measured position information is then converted and sent to the longitudinal support frame 2. After receiving the signal, the second drive motor 24 drives the second transmission mechanism 23 to move the welding gun 1 vertically to the appropriate position for welding. After the two welding guns 1 begin operating, the internally supported rotary table 6 rotates at a constant speed with the center of the circle as the fixed point. The spray from the welding guns 1 precisely contacts the weld point between the rim and the spoke. The rotation speed of the internally supported rotary table 6 precisely matches the speed at which the welding guns 1 complete a single weld. Because the two welding guns 1 operate simultaneously, the internally supported rotary table 6 only needs to rotate 180 degrees to complete the welding of the entire weldment. This device not only eliminates the need for manual adjustment of the weldment and the welding guns, but also significantly reduces welding time, improves production efficiency, and ensures worker safety.

Claims

1. An adaptive welding web apparatus, characterized by, The utility model relates to a welding gun (1) is connected on the transverse frame (4) through the Z-shaped connecting block (42), and the transverse frame (4) is connected on the longitudinal support frame (2) through the second sliding block (22). The welding gun (1) is placed symmetrically left and right. The connecting block (42) is Z-shaped in cross section and comprises a first connecting body (421) connected with the first transmission mechanism (43) and a second connecting body (422) with a vertical circular through hole (45), and the second connecting body (422) is connected with the welding gun (1). The first connecting body (421) is connected with a flat first sliding block (46), the upper surface and the lateral surface of the first sliding block (46) are provided with first threaded grooves (461), the first transmission mechanism (43) comprises a horizontal first guide rail (41), and the first threaded grooves (461) enable the first sliding block (46) to be mounted on the first guide rail (41) by being combined with fixed screws (462).

2. The self-adapting welding web device of claim 1, wherein, The transverse frame (4) comprises a first transverse arm (47) and a second transverse arm (48), the first transverse arm (47) and the second transverse arm (48) are both provided with a first driving motor (44) at an end away from the welding gun (1), and the first transverse arm (47) and the second transverse arm (48) are placed adjacently and side by side at an end away from the first driving motor (44).

3. An adaptive welding web apparatus as defined in claim 2, wherein, The transverse frame (4) is connected on the second sliding block (22), the longitudinal support frame (2) is provided with a longitudinal second guide rail (21), and the second sliding block (22) is slidingly connected on the second guide rail (21).

4. The self-adapting welding web device of any one of claims 1 to 3, wherein, The longitudinal support frame (2) comprises a second transmission mechanism (23) and a second driving motor (24) mounted on the top, and the longitudinal support frame (2) is fixedly mounted on a wall.

5. An adaptive welding web device according to claim 4, wherein, The welding gun (1) comprises a vertical long rod (11) fixedly arranged at the tail of the circular through hole (45) and a goose neck nozzle (12), and the welding gun (1) has two left-right symmetrical welding guns.

6. An adaptive welding web device according to claim 5, wherein, The two goose neck nozzles (12) are placed symmetrically with the spouts facing away from each other, and a circular inner support type rotary table (6) with a center and an axis being on the same vertical line is arranged below the symmetry axis between the two welding guns (1).

7. The self-adapting welding web device of claim 2, wherein, The inner support type rotary table (6) is provided with a group of transverse distance measuring photoelectric elements (5) symmetrically arranged on the center axis.

8. The self-adapting welding web device of claim 7, wherein, A group of longitudinal distance measuring photoelectric elements (3) are symmetrically hung above the edges of the inner support type rotary table (6), and the two longitudinal distance measuring photoelectric elements (3) are located on the same vertical plane as the transverse distance measuring photoelectric elements (5).

9. An adaptive welding web device according to claim 8, wherein, ​ 10. The self-adapting welding web device of claim 9, wherein, ​

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