An automobile weld joint inspection apparatus

Abstract

The present application belongs to the technical field of automobile welding detection, and discloses a kind of automobile welding point detection equipment, comprising: processing table;Clamping tool, is fixed in the top of processing table;Suspension guide rail, be arranged above the clamping tool;Lifting sliding machine, be arranged on the suspension guide rail, wherein, lifting sliding machine and suspension guide rail sliding fit;Connecting frame, is fixed in the lifting end of lifting sliding machine;Adjusting mechanism, be arranged in the both sides of connecting frame;Power mechanism, be arranged in the bottom of connecting frame and be connected to adjusting mechanism, and, power mechanism is folding structure, and, power mechanism drives adjusting mechanism to rotate dislocation.The present application is detected by suspension guide rail, lifting sliding machine, connecting frame, adjusting mechanism and power mechanism setting to the welding point at the combined connection of frame, cross beam and bottom plate, to machine positioning detection is carried out to the fixed welding point of such frame welding, and the detection efficiency is improved by machine efficient movement detection mode.

Description

Technical Field

[0001] This invention relates to the field of automotive welding inspection, and more specifically, to an automotive weld inspection device. Background Technology

[0002] Automotive body welding technology is one of the core technologies in automobile manufacturing. It has developed alongside the advancements in automotive industry technology. Automotive body welding utilizes various welding methods for connection, including resistance welding, arc welding, and special welding. Resistance welding is further subdivided into different techniques or operations. Spot welding is primarily used for chassis assemblies, floors, doors, side panels, rear panels, and front axles to strengthen the connections between components. It typically involves several weld points distributed across the parts. Seam welding is mainly used for roof rain guards, fuel tanks, mufflers, and oil pans, forming continuous weld points to create seams for sealing and preventing gaps between parts. The welding of the body frame and roof is a combined welding process. Seam welding connects the body frame and roof, while spot welding connects the roof assembly to the interior of the body frame. In the connection between the frame, crossbeams, and floor plate, the aforementioned spot welding and seam welding are used to seal and connect the floor plate, forming equidistant weld points and linear weld seams.

[0003] After automotive welding is completed, weld point inspection is required on the assembled chassis and other components to assess the strength of the connections. This necessitates the use of weld point inspection equipment. Common weld point inspection methods include destructive methods, which use hydraulic separation devices to separate the connections between components and determine the connection strength by measuring the required torque and observing the weld nugget size. Non-destructive methods use ultrasonic or eddy current transceivers to inspect the weld points and check the weld density. Because automotive parts vary in shape during assembly, conventional weld point inspection is usually performed manually using one of these two methods. However, for components like chassis and crossbeams with neatly arranged spot and seam welds, manual inspection is inefficient. Therefore, developing an efficient weld point inspection device for chassis and crossbeams is crucial. In this regard, we propose an automotive weld point inspection device. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] The purpose of this invention is to provide an automotive weld joint inspection device to solve the problems mentioned in the background art.

[0006] 2. Technical Solution

[0007] An automotive weld point inspection device includes: a processing table; a clamping fixture fixedly mounted on the top of the processing table; a suspension guide rail arranged above the clamping fixture; a lifting sliding mechanism arranged on the suspension guide rail, wherein the lifting sliding mechanism is slidably engaged with the suspension guide rail; a connecting frame fixedly mounted on the lifting end of the lifting sliding mechanism; an adjustment mechanism arranged on both sides of the connecting frame; and a power mechanism arranged at the bottom of the connecting frame and connected to the adjustment mechanism, wherein the power mechanism has a folding structure and drives the adjustment mechanism to rotate and misalign.

[0008] Preferably, the clamping fixture includes: a placement frame fixed to the top of the processing table; a hydraulic push rod arranged on both sides of the upper edge of the processing table via a hinge A; a clamping arm arranged on both sides of the placement frame and connected to the hydraulic push rod via a hinge B; and a placement platform arranged on the placement frame, wherein the gap between the placement platform and the clamping arm forms a clamping cavity for automotive parts.

[0009] Preferably, the adjustment mechanism includes: a support frame arranged on both sides of the connecting frame; a mounting seat bolted to the support frame, wherein the mounting seat has a ball groove inside; a ball joint connecting seat arranged below the mounting seat, wherein the ball joint connecting seat is connected to the connecting seat via a ball joint connecting rod; a telescopic rod arranged at the lower end of the ball joint connecting seat; a first rotating seat arranged at the telescopic end of the telescopic rod; a detection head arranged on the first rotating seat; and a limiting ring sleeve shaft sleeved on the outer wall of the detection head, wherein the limiting ring sleeve shaft is movably connected to the detection head.

[0010] Preferably, the power mechanism includes: a cylinder arranged on the connecting frame; an auxiliary rod arranged at the bottom of the cylinder; a rotating shaft sleeved at the connection between the rotating end of the cylinder and the auxiliary rod, wherein the cylinder and the rotating shaft are rotatably connected, and the cylinder and the rotating shaft are in a lifting and lowering cooperation, and limit grooves are provided on both sides of the outer wall of the rotating shaft; a locking sleeve sleeved on the outer wall of the rotating shaft and connected to the limit grooves; a second rotating seat fixed on both sides of the locking sleeve; an electric actuator arranged on the second rotating seat and connected to the support frame; a turntable fixed at the bottom of the rotating shaft, wherein the locking sleeve is in a sliding cooperation with the rotating shaft, and the turntable is in a rotatable cooperation with the rotating shaft and the electric actuator through the locking sleeve; and a guide groove formed inside the turntable.

[0011] Preferably, the turntable is Z-shaped, and the guide grooves are distributed in an arc shape on the turntable.

[0012] Preferably, the method of using the automotive weld point inspection equipment includes the following steps:

[0013] S1. Pre-treatment: Apply coupling agent manually or by machine to the spot welds and seam welds of the chassis and other components such as the floor;

[0014] S2. Loading process: The frame and floor plate components are placed on the placement table by manual or machine operation, and the clamping arm is driven by hydraulic push rod to clamp the frame and floor plate components in the center.

[0015] S3. Detect and fold the product.

[0016] For inspecting fixed spot welds, the auxiliary rod and turntable are lowered by a cylinder stroke, while the electric actuator is simultaneously controlled to return, causing the auxiliary rod to rotate during descent. The arc-shaped guide groove rotates to limit the movement of the limiting ring shaft, allowing the inspection head to slide under force within the guide groove during rotation. Simultaneously, the mounting base, ball joint connector, and first rotating seat rotate, and the telescopic rod stretches and rotates, forming a double-row arrangement of inspection heads.

[0017] If the weld point is to be inspected, the auxiliary rod and turntable are raised by the return stroke of the cylinder, and the electric push rod is controlled to perform the stroke work at the same time, so that the auxiliary rod rotates relative to the other side during the rise. The arc-shaped guide groove is used to limit the limit ring shaft, so that the detection head can slide under force in the guide groove during the rotation. At the same time, the mounting base, ball head connecting base, first rotating base rotate, the telescopic rod retracts and rotates, forming a single row of detection head group;

[0018] S4. Adjustment and Fitting: The connecting frame, adjustment mechanism, and power mechanism are slidably adjusted and lowered by the suspension guide rail and lifting sliding machine to make the detection head fit with the spot weld and seam weld for inspection.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of this invention are:

[0021] 1. This invention uses a suspension guide rail, a lifting sliding machine, a connecting frame, an adjustment mechanism, and a power mechanism to inspect the weld points where the frame, crossbeam, and base plate are combined. This allows for machine positioning and inspection of the fixed weld points of such frame welds, improving inspection efficiency through efficient machine motion detection.

[0022] 2. This invention uses hydraulic push rods and clamping arms to clamp and fix the frame components. At the same time, the clamping arms are arranged in opposite directions to center the frame components, which facilitates the positioning and detection of the upper suspension guide rail, lifting slide, connecting frame, adjustment mechanism and power mechanism.

[0023] 3. This invention enables the detection head to rotate on the Y-axis through the mounting base and ball joint connector, and to rotate on the Z-axis through the ball joint connector and telescopic rod. The telescopic rod and the first rotating seat enable the detection head to rotate on the X-axis and extend under tension. Using these rotational adjustments, the double-row detection heads can be folded and staggered to form a single-row distribution. The double-row detection heads can perform weld point detection on fixedly arranged spot welds, achieving efficient mechanical detection of a fixed arrangement. The single-row detection heads and the suspension guide rail move slightly to continuously detect seam welds, achieving efficient mechanical detection of seam welds with a single-row distribution.

[0024] 4. This invention uses an arc-shaped guide groove to rotate and limit the limiting ring shaft, so that the detection head can slide under force in the guide groove during rotation, thus enabling mechanized linkage work. The detection heads can be arranged in a single row or double row. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the clamping tooling of the present invention;

[0027] Figure 3 This is a three-dimensional structural diagram of the suspension guide rail and lifting sliding mechanism of the present invention;

[0028] Figure 4 For the present invention Figure 1 A magnified view of the structure at point A in the middle;

[0029] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0030] The following are the labels in the diagram: 1. Processing table; 2. Clamping fixture; 201. Placement rack; 202. Hydraulic push rod; 203. Clamping arm; 204. Placement table; 3. Suspension guide rail; 4. Lifting sliding mechanism; 5. Connecting frame; 6. Adjusting mechanism; 601. Support frame; 602. Mounting seat; 603. Ball joint connecting seat; 604. Telescopic rod; 605. First rotating seat; 606. Detection head; 607. Limiting ring sleeve shaft; 7. Power mechanism; 701. Cylinder; 702. Auxiliary rod; 703. Rotating shaft; 704. Engaging sleeve; 705. Second rotating seat; 706. Electric push rod; 707. Turntable; 708. Guide groove. Detailed Implementation

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Example 1

[0035] Please see Figures 1-5 This invention provides a technical solution:

[0036] An automotive weld point inspection device includes: a processing table 1, a clamping fixture 2, a suspension guide rail 3, a lifting sliding mechanism 4, a connecting frame 5, an adjusting mechanism 6, and a power mechanism 7. The processing table 1; the clamping fixture 2, fixedly mounted on the top of the processing table 1; the suspension guide rail 3, arranged above the clamping fixture 2; the lifting sliding mechanism 4, arranged on the suspension guide rail 3, wherein the lifting sliding mechanism 4 and the suspension guide rail 3 are in sliding cooperation; the connecting frame 5, fixedly mounted on the lifting end of the lifting sliding mechanism 4; the adjusting mechanism 6, arranged on both sides of the connecting frame 5; and the power mechanism 7, arranged at the bottom of the connecting frame 5 and connected to the adjusting mechanism 6, wherein the power mechanism 7 has a folding structure and drives the adjusting mechanism 6 to rotate and shift.

[0037] This invention uses a suspension guide rail 3, a lifting sliding machine 4, a connecting frame 5, an adjustment mechanism 6, and a power mechanism 7 to inspect the weld points where the frame, crossbeam, and base plate are combined. This allows for machine positioning and inspection of the fixed weld points of this type of frame welding, improving inspection efficiency through efficient machine motion detection.

[0038] The clamping fixture 2 includes: a placement frame 201, a hydraulic push rod 202, a clamping arm 203, and a placement table 204; the placement frame 201 is fixed to the top of the processing table 1; the hydraulic push rod 202 is arranged on both sides of the upper edge of the processing table 1 through a hinge A; the clamping arm 203 is arranged on both sides of the placement frame 201 and connected to the hydraulic push rod 202 through a hinge B; the placement table 204 is arranged on the placement frame 201, and the gap between the placement table 204 and the clamping arm 203 forms a clamping cavity for automotive parts.

[0039] The present invention uses hydraulic push rods 202 and clamping arms 203 to clamp and fix the frame components. At the same time, the clamping arms 203 are arranged opposite each other to make the frame components centered, which facilitates the positioning and detection of the upper suspension guide rail 3, lifting slide 4, connecting frame 5, adjustment mechanism 6 and power mechanism 7.

[0040] The adjusting mechanism 6 includes: a support frame 601, a mounting base 602, a ball joint connector 603, a telescopic rod 604, a first rotating seat 605, a detection head 606, and a limiting ring shaft 607; the support frame 601 is arranged on both sides of the connecting frame 5; the mounting base 602 is bolted to the support frame 601, and a ball groove is provided inside the mounting base 602; the ball joint connector 603 is arranged below the mounting base 602, and the ball joint connector 603 is formed with the connecting seat through a ball joint connecting rod; the telescopic rod 604 is arranged at the lower end of the ball joint connector 603; the first rotating seat 605 is arranged at the telescopic end of the telescopic rod 604; the detection head 606 is arranged on the first rotating seat 605; the limiting ring shaft 607 is sleeved on the outer wall of the detection head 606, wherein the limiting ring shaft 607 is movably connected to the detection head 606.

[0041] This invention enables the detection head 606 to rotate on the Y-axis by using a mounting base 602 and a ball joint connector 603. The ball joint connector 603 and the telescopic rod 604 are rotatably connected to enable the detection head 606 to rotate on the Z-axis. The telescopic rod 604 extends and retracts, and the first rotating seat 605 enables the detection head 606 to rotate on the X-axis and extend under tension. Using these rotational adjustments, the double-row detection heads 606 can be folded and staggered to form a single-row distribution. The double-row detection heads 606 can perform weld point detection on fixedly arranged spot welds, achieving efficient mechanical detection of the fixed arrangement. The single-row detection heads 606 and the suspension guide rail 3 move slightly to perform continuous detection of seam welds, achieving efficient mechanical detection of seam welds using the single-row detection heads 606.

[0042] The power mechanism 7 includes: a cylinder 701, an auxiliary rod 702, a rotating shaft 703, a locking sleeve 704, a second rotating seat 705, an electric actuator 706, a turntable 707, and a guide groove 708; the cylinder 701 is arranged on the connecting frame 5; the auxiliary rod 702 is arranged at the bottom of the cylinder 701; the rotating shaft 703 is sleeved at the connection between the rotating end of the cylinder 701 and the auxiliary rod 702, and the cylinder 701 and the rotating shaft 703 are rotatably connected, and the cylinder 701 and the rotating shaft 703 are vertically coordinated, and the outer wall of the rotating shaft 703 is... Limiting grooves are provided on both sides; a locking sleeve 704 is sleeved on the outer wall of the rotating shaft 703 and connected to the limiting groove; a second rotating seat 705 is fixed on both sides of the locking sleeve 704; an electric actuator 706 is arranged on the second rotating seat 705 and connected to the support frame 601; a turntable 707 is fixed on the bottom of the rotating shaft 703, and the locking sleeve 704 is slidably engaged with the rotating shaft 703, and the turntable 707 is rotatably engaged with the rotating shaft 703 and the electric actuator 706 through the locking sleeve 704; a guide groove 708 is provided inside the turntable 707.

[0043] The turntable 707 is Z-shaped, and the guide grooves 708 are distributed in an arc shape on the turntable 707.

[0044] The present invention uses the rotation of the arc-shaped guide groove 708 to limit the positioning ring shaft 607, so that the detection head 606 can slide under force in the guide groove 708 during the rotation process, thereby enabling mechanized linkage work. The detection head 606 can be arranged in a single row or in a double row.

[0045] Example 2

[0046] A method of using the construction waste transfer and conveying device for construction in Embodiment 1 includes the following steps:

[0047] S1. Pre-treatment: Apply coupling agent manually or by machine to the spot welds and seam welds of the chassis and other components such as the floor;

[0048] S2, Loading process; The frame and floor plate components are placed on the placement platform 204 by manual or machine operation, and the clamping arm 203 is pushed by the hydraulic push rod 202 to clamp the frame and floor plate components in the center.

[0049] S3. Detect and fold the product.

[0050] For testing fixed spot welds, the auxiliary rod 702 and turntable 707 are lowered by the stroke of cylinder 701, while the electric actuator 706 is simultaneously controlled to return, causing the auxiliary rod 702 to rotate during descent. The arc-shaped guide groove 708 rotates to limit the positioning ring shaft 607, allowing the detection head 606 to slide under force in the guide groove 708 during rotation. Simultaneously, the mounting base 602, ball joint connecting base 603, and first rotating base 605 rotate, and the telescopic rod 604 is stretched and rotated, forming a double-row arrangement of detection heads 606.

[0051] If the weld point is to be inspected, the auxiliary rod 702 and the turntable 707 are raised by the return stroke of the cylinder 701, and the electric push rod 706 is controlled to perform the stroke work at the same time, so that the auxiliary rod 702 rotates relative to each other during the rise. The arc-shaped guide groove 708 is rotated to limit the limit ring shaft 607, so that the detection head 606 can slide under force in the guide groove 708 during the rotation. At the same time, the mounting base 602, the ball head connecting base 603, the first rotating base 605 rotate, the telescopic rod 604 retracts and rotates, forming a single row of detection heads 606.

[0052] S4. Adjustment and fitting: The connecting frame 5, adjustment mechanism 6, and power mechanism 7 are slidably adjusted and lowered by the suspension guide rail 3 and the lifting sliding machine 4, so that the detection head 606 fits with the spot weld and seam weld for detection.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automotive weld point inspection device, characterized in that, include: Processing table (1); A clamping fixture (2) is fixedly mounted on the top of the processing table (1). The clamping fixture (2) includes: a placement frame (201) fixedly mounted on the top of the processing table (1); a hydraulic push rod (202) arranged on both sides of the upper edge of the processing table (1) via a hinge A; a clamping arm (203) arranged on both sides of the placement frame (201) and connected to the hydraulic push rod (202) via a hinge B; and a placement table (204) arranged on the placement frame (201), wherein the gap between the placement table (204) and the clamping arm (203) forms a clamping cavity for automotive parts. The suspension guide rail (3) is arranged above the clamping fixture (2); The lifting sliding mechanism (4) is arranged on the suspension guide rail (3). The lifting sliding mechanism (4) is in sliding cooperation with the suspension guide rail (3); The connecting frame (5) is fixed to the lifting end of the lifting sliding machine (4); An adjustment mechanism (6) is arranged on both sides of the connecting frame (5). The adjustment mechanism (6) includes: a support frame (601) arranged on both sides of the connecting frame (5); a mounting seat (602) bolted to the support frame (601), and the mounting seat (602) has a ball groove inside; a ball head connecting seat (603) arranged below the mounting seat (602), and the ball head connecting seat (603) is formed with the connecting seat through a ball head connecting rod; a telescopic rod (604) arranged at the lower end of the ball head connecting seat (603); a first rotating seat (605) arranged at the telescopic end of the telescopic rod (604); a detection head (606) arranged on the first rotating seat (605); and a limiting ring sleeve shaft (607) sleeved on the outer wall of the detection head (606), wherein the limiting ring sleeve shaft (607) is movably connected to the detection head (606). A power mechanism (7) is arranged at the bottom of the connecting frame (5) and connected to the adjustment mechanism (6). The power mechanism (7) has a folding structure and drives the adjustment mechanism (6) to rotate and be misaligned. The power mechanism (7) includes: a cylinder (701) arranged on the connecting frame (5); an auxiliary rod (702) arranged at the bottom of the cylinder (701); a rotating shaft (703) sleeved at the connection between the rotating end of the cylinder (701) and the auxiliary rod (702), wherein the cylinder (701) and the rotating shaft (703) are rotatably connected, and the cylinder (701) and the rotating shaft (703) are vertically coupled, and limit grooves are provided on both sides of the outer wall of the rotating shaft (703); a locking sleeve (704) sleeved on the outer wall of the rotating shaft (703) and connected to the limit grooves; and a second rotating seat (705) fixed to the locking sleeve. Both sides of the tube (704); electric actuator (706), arranged on the second rotating seat (705) and connected to the support frame (601); turntable (707), fixed to the bottom of the rotating shaft (703), and the engaging sleeve (704) is slidably engaged with the rotating shaft (703), and the turntable (707) is rotatably engaged with the rotating shaft (703) and the electric actuator (706) through the engaging sleeve (704); guide groove (708), opened inside the turntable (707).

2. The automotive weld point inspection equipment according to claim 1, characterized in that, The turntable (707) is Z-shaped, and the guide grooves (708) are distributed in an arc shape on the turntable (707).

3. The method of using an automotive weld point inspection device according to any one of claims 1-2, characterized in that, Includes the following steps: S1. Pre-treatment: Apply coupling agent to the spot welds and seam welds of the frame and floor components by manual or machine application; S2, Loading process; The frame and floor components are placed on the placement platform (204) by manual labor or machine, and the clamping arm (203) is pushed by the hydraulic push rod (202) to clamp the frame and floor components in the center; S3. Detection of folding processing: If the fixed spot weld is to be detected, the auxiliary rod (702) and turntable (707) are lowered by the stroke of the cylinder (701), and the electric push rod (706) is controlled to return to its original position. The auxiliary rod (702) rotates during the descent, and the arc-shaped guide groove (708) is used to limit the limiting ring shaft (607). This allows the detection head (606) to slide under force in the guide groove (708) during rotation. At the same time, the mounting base (602), ball joint connecting base (603), and first rotating base (605) rotate. The telescopic rod (604) is stretched and rotated to form a double-row array of detection heads (606). If the weld point is to be inspected, the auxiliary rod (702) and the turntable (707) are raised by the return drive of the cylinder (701), and the electric push rod (706) is controlled to perform the stroke work at the same time, so that the auxiliary rod (702) rotates relative to each other during the rise. The arc-shaped guide groove (708) is rotated to limit the limit ring shaft (607), so that the detection head (606) can slide under force in the guide groove (708) during the rotation. At the same time, the mounting base (602), the ball head connecting base (603), the first rotating base (605) rotate, the telescopic rod (604) retracts and rotates to form a single-row array of detection heads (606). S4. Adjustment and fitting process: The connecting frame (5), adjustment mechanism (6), and power mechanism (7) are slidably adjusted and lowered by the suspension guide rail (3) and lifting sliding machine (4) so ​​that the detection head (606) fits with the spot weld and seam weld for detection.

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