CN204160109U - A kind of automobile catalytic device welding clamping device - Google Patents

Abstract

The utility model discloses a welding and clamping device for an automobile catalytic converter, which comprises a carrier assembly clamping mechanism (8), an air intake end cone clamping device and an air outlet end cone clamping device; the air intake end cone clamping device and The cone clamping device at the gas outlet includes a profiling positioning plate I (7) and a profiling positioning plate II (12); the sides of the profiling positioning plate I (7) and profiling positioning plate II (12) are respectively equipped The locking device (5) for compressing and fixing the inlet end cone and the air outlet end cone; the carrier assembly clamping mechanism (8) includes a C-shaped arm (81) driven by a drive mechanism to clamp the carrier assembly, The centerline of the C-shaped arms (81) is consistent with the centerlines of the profiling positioning plate I (7) and the profiling positioning plate II (12). The welding clamping device is fast and reliable to use, ensures uniform welding seams, improves welding quality, eliminates the cracking phenomenon of catalytic converter weld seams, and has strong practicability.

Description

A welding clamping device for an automobile catalytic converter

technical field

The utility model belongs to the technical field of automobile parts manufacturing, and relates to a clamping device applied to the welding of automobile catalytic converters.

Background technique

At present, the welding and clamping device of the elliptical automobile catalytic converter mainly adopts a U-shaped block to support the elliptical catalytic converter carrier assembly, and the end cones on both sides are pressed to the carrier assembly, and then welded after pressing. Since the position of the carrier assembly in the U-shaped block depends entirely on the operator’s placement, it is difficult to grasp the placement position, resulting in different distances between the outer edge of the carrier assembly and the shape of the end cone, which affects the welding of automotive catalytic converters. Weld penetration and weld height, where the distance is large, the penetration is small, and even false welding occurs, and it is easy to crack under the action of stress. The traditional welding clamping device is complicated to operate, and the welding products have many problems and poor quality, which greatly shortens the service life of the catalytic converter and poses quality risks.

Contents of the invention

The purpose of the utility model is to solve the problems existing in the prior art, and provide a welding clamping device that is convenient to use, high in efficiency, can position the welding position well, ensure uniform welding seam, and improve the welding quality of the automobile catalytic converter.

In order to achieve the above object, the technical solution adopted by the utility model is: the automobile catalytic converter welding and clamping device provided includes a carrier assembly clamping mechanism for fixing the catalyst carrier assembly, and the two sides of the carrier assembly clamping mechanism The cone clamping device at the inlet end and the cone clamping device at the outlet end are respectively provided; the cone clamping device at the inlet end and the cone clamping device at the outlet end include movable and telescopic imitation cones respectively used for preinstalling the cone at the inlet end. Shaped positioning plate I and profiling positioning plate II for pre-installing the gas outlet cone; the sides of the profiling positioning plate I and profiling positioning plate II are respectively provided with holes for pressing and fixing the inlet end cone and the gas outlet cone Locking device; the clamping mechanism of the carrier assembly includes a C-shaped arm driven by a driving mechanism to clamp the carrier assembly, the center line of the C-shaped arm is in contact with the profiling positioning plate I and the profiling positioning plate The centerlines of Ⅱ coincide.

In order to make the above technical solutions more detailed and specific, the utility model also provides the following further preferred technical solutions to obtain satisfactory practical effects:

The clamping mechanism of the carrier assembly includes two oppositely arranged C-shaped arms, and a support pad for supporting the carrier assembly is arranged between the two C-shaped arms.

The upper and lower ends of the inner side of the C-shaped arms are respectively provided with holding blocks that are in contact with the carrier assembly, and the intersecting centerlines of the two sets of holding blocks coincide with the positioning centerlines of the air inlet and outlet cones.

The driving mechanism of the clamping mechanism of the carrier assembly includes a guide sleeve and a guide rod that are relatively movable at the lower end of the C-shaped arm, and a hinge mechanism that drives the guide sleeve and the guide rod to drive the movement of the C-shaped arm. , the hinge mechanism is controlled by the control handle to drive the driving cylinder connected with the hinge mechanism.

Both the inlet cone clamping device and the gas outlet cone clamping device are supported by a support frame, the locking device is placed on the support frame, and the outer sides of the profiling positioning plate I and profiling positioning plate II Both are provided with a moving base plate, and the copying positioning plate I and the copying positioning plate II are connected to the moving base plate through a moving guide rod.

Both the profiling positioning plate I and the profiling positioning plate II are connected with a profiling positioning plate control cylinder for controlling their movement.

The locking device includes a locking jaw cylinder, the front end of the locking jaw cylinder is provided with a positioning block positioned at the air inlet of the end cone, and the front end of the positioning block is provided with a locking jaw.

A plurality of pre-positioned magnets are evenly distributed on the profiling surfaces of the profiling positioning plate I and the profiling positioning plate II that fit the end cone surface.

The profiling positioning plate I, the profiling positioning plate II and the supporting pads are all provided with induction sensors.

The clamping mechanism for the carrier assembly, the clamping device for the cone at the inlet end and the clamping device for the cone at the outlet end are all arranged on the base, wherein the clamping device for the cone at the outlet end is slidably connected to the base.

The air outlet cone clamping device is connected and fitted on the sliding guide rail provided on the base through a slider, and the air outlet cone clamping device is driven to move by a sliding cylinder.

Compared with the prior art, the welding and clamping device of the automobile catalytic converter of the utility model has the following advantages: the device clamps and positions the carrier component through the clamping mechanism of the carrier component, and the clamping device of the air inlet end arranged at both ends and the gas outlet cone clamping device to respectively position the inlet cone and the gas outlet cone. During the clamping process, the centerline of the elliptical automobile catalyst coincides with the centerline of the two ends of the cone through the positioning settings of the device to ensure that the end The distance between the cone and the outer surface of the carrier assembly is even, which ensures the stability and consistency of the welding penetration, thus ensuring the uniformity of the weld seam, improving the welding quality of the oval catalytic converter, eliminating the cracking of the catalytic converter weld seam, and having strong practicability .

Description of drawings

The following is a brief description of the content expressed in the accompanying drawings of this specification and the marks in the drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the clamping mechanism of the carrier assembly of the present invention;

Fig. 3 is a structural schematic diagram of the hinge mechanism of the carrier assembly clamping mechanism of the present invention;

Fig. 4 is a structural schematic diagram of the locking device of the present invention.

Marked in the figure: 1, base, 2, support frame, 3, motion substrate, 4, motion guide rod, 5, locking device, 51, locking jaw cylinder, 52, positioning block, 53, locking clamp Claw, 54, positioning support plate, 6, profiling positioning plate control cylinder, 7, profiling positioning plate I, 8, carrier assembly clamping mechanism, 81, C-shaped arm, 82, holding block, 83, support pad Block, 84, guide sleeve, 85, guide rod, 86, bottom plate, 87, hinge mechanism, 88, driving cylinder, 89, control handle, 9, magnet, 10, sliding cylinder, 11, sliding guide rail, 12, profiling positioning Plate II.

Detailed ways

The specific implementation of the present utility model will be described in further detail below by describing the embodiments with reference to the accompanying drawings.

The utility model automobile catalytic converter welding and clamping device, as shown in Figure 1, includes a carrier assembly clamping mechanism 8, an air inlet cone clamping device, an air outlet cone clamping device and a base 1 for fixing. The cone clamping device at the inlet end and the cone clamping device at the outlet end are arranged on both sides of the clamping mechanism 8 of the carrier assembly. The inlet cone clamping device includes a movable and telescopic profiling positioning plate Ⅰ7 for pre-installing the inlet cone, and the outlet cone clamping device includes a movable and telescopic profiling positioning plate for pre-installing the outlet cone II12. After the inlet cone is pre-installed and positioned, it is pressed and fixed by the locking device 5 arranged on the outer side of the profiling positioning plate I7 away from the clamping mechanism 8 of the intermediate carrier assembly; The locking device 5 on the outside of the carrier assembly clamping mechanism 8 compresses and fixes the gas outlet cone. The carrier component clamping mechanism 8 includes a C-shaped arm 81, which is driven by the drive mechanism to clamp the carrier component. The center line of the carrier component clamped by the C-shaped arm 81 and the profiling positioning plate I7 and the profiling positioning plate The centerlines of the inlet cone and the outlet cone for Ⅱ12 positioning are consistent.

As shown in Figure 2, the carrier assembly clamping mechanism 8 is fixed on the base 1 through the bottom plate 86, and includes two oppositely arranged C-shaped arms 81, and a support for placing and supporting the carrier assembly is provided between the two C-shaped arms 81. Block 83. The inner upper and lower ends of each C-shaped arm 81 are respectively provided with protruding clamping blocks 82 for contacting and clamping with the carrier assembly. The clamping block 82 here is selected according to special needs, and can move from the center, that is, while ensuring the clamping of the carrier assembly, the center of the carrier assembly does not change, as shown in Figure 2. Two pairs of four clamping blocks 82 The intersecting centerline of the centerline coincides with the positioning centerline of the inlet and outlet cones, and is on a straight line.

The driving mechanism of the carrier assembly clamping mechanism 8 in the utility model, as shown in Figure 3, comprises the guide sleeve 84 and the guide rod 85 that are located at the lower end of the C-shaped arm 81 that can move relatively, and the drive guide sleeve 84 and the guide rod 85 drives the hinge mechanism 87 of C-shaped arm 81 motion. The clamping principle is to control the movement of the driving cylinder 88 by manipulating the control handle 89, driving the hinge mechanism 87 connected to it, and the hinge mechanism 87 drives the connected driving guide sleeve 84 and guide rod 85 to move relative to each other, and then controls the two opposite C-shaped arms. 81 is clamped or opened.

The cone clamping device at the inlet end and the cone clamping device at the outlet end are supported on the base 1 through the support frame 2, and the centerline position of the cone at the inlet and outlet ends of the clamping is at the same position as the centerline position of the carrier assembly through the support frame 2. in a straight line. The movable profiling positioning plate Ⅰ7 and profiling positioning plate II12 in the cone clamping device at the inlet end and the cone clamping device at the gas outlet control the push-out and retraction of the positioning plate by controlling the cylinder 6, wherein the profiling positioning The plate control cylinder 6 is controlled by a control valve. The profiling positioning plate I7 and the profiling positioning plate II12 are respectively provided with elliptical holes matching the shape of the inlet end cone and the outlet end cone, and the profiling positioning plate I7 and the profiling positioning plate II12 are attached to the end cone surface A plurality of pre-positioned magnets 9 are evenly distributed on the profiling surface of the profiling surface to hold the end cone surface and realize pre-positioning. The outer sides of the profiling positioning plate I7 and the profiling positioning plate II12 are equipped with a motion base plate 3 as a reference for movement, and the profiling positioning plate I7 and the profiling positioning plate II12 are connected with the motion base plate 3 through a motion guide rod 4, thereby With the motion guiding effect, the driving motion of the cylinder 6 is controlled by the profiling positioning plate to ensure the accuracy and consistency of the motion axis. Wherein motion guide bar 4 is provided with four that are distributed in four corner positions.

The locking device 5 of the cone clamping device at the inlet end and the cone clamping device at the outlet end, as shown in Figure 4, includes a locking jaw cylinder 51, and the front end of the locking jaw cylinder 51 is provided with an air inlet positioned at the end cone. The positioning block 52 of the mouth, the front end of the positioning block 52 is provided with a locking jaw 53, and two positioning support plates 54 are arranged above and below the central locking jaw 53. The locking devices 5 are respectively aligned with the air inlets of the pre-positioned air inlet and outlet cones, and the locking jaws 53 extend outward under the action of the control cylinder to press the end cones, and the upper and lower positioning support plates 54 start Auxiliary support to the limit to ensure its stability.

The carrier component clamping mechanism 8 , the cone clamping device at the inlet end and the cone clamping device at the gas outlet are all arranged on the base 1 , wherein the cone clamping device at the gas outlet and the base 1 can be relatively slidably connected. The air outlet cone clamping device is connected and fitted on the sliding guide rail 27 provided on the base 1 through a slider, and the air outlet cone clamping device is driven to move by the sliding cylinder 10 .

In the utility model, the profiling positioning plate I7, the profiling positioning plate II12 and the support block 83 are all equipped with inductive sensors to sense that the corresponding parts are installed in place, and are controlled by PLC, and the operation is simple, fast, safe and reliable.

When installing parts, profiling positioning plate I7 and profiling positioning plate II12 are all stretched out, and the air inlet locking jaw 53 of the air inlet cone is installed on the positioning block 52, and the elliptical end of the air inlet cone is installed on the In the elliptical profiling groove of the profiling positioning plate I7, the pre-positioning magnet 9 is used to attract the elliptical end face, the signal of the air inlet cone induction sensor is connected, and the air inlet cone has been pre-installed in place. Install the air outlet cone in the same way, the signal of the air outlet cone induction sensor is connected, and the air outlet cone has been pre-installed in place. Then put the elliptical carrier assembly on the support block 83, and the signal of the induction sensor of the carrier assembly is connected after pre-installed in place. At this moment, the assembler walks out of the welding tooling area, presses the general start button, and the locking jaw 53 stretches out under the action of the locking jaw cylinder 51, and compresses the end cone. At the same time, the control handle 89 is manipulated, the driving cylinder 88 is stretched out, and the hinge drives the two C-shaped arms 81 to move in the center, and the carrier assembly is clamped so that the center of the carrier assembly is consistent with the center of the end cone. Since the arms are in contact with the carrier assembly The point is selected through experiments, and the carrier assembly can move from the center within the two arms. The sliding cylinder 10 on the side of the cone end of the gas outlet extends out and pushes the clamping device of the cone at the gas outlet together with the cone at the gas outlet to the carrier assembly and the cone at the gas inlet. The oval contoured positioning plate is retracted. Return to the position, the welding equipment starts to weld, and after the welding is completed, the welding fixture returns to its position. Unclamp the cone locking jaw 53 of the air inlet and air outlet earlier, the sliding cylinder 11 of the air outlet cone clamping device retracts, and the profiling positioning plate stretches out for the next operation. Remove the welded workpiece, complete one operation, and proceed to the next cycle.

The welding clamping device of the automobile catalytic converter of the utility model adopts PLC to control the welding clamping device, and the loading operation process is very convenient, fast, safe and reliable. During the clamping process, the centerline of the elliptical automobile catalytic converter coincides with the centerline of the two-end cones through the positioning of the device, and the carrier assembly can move in the center of the C-shaped arm to ensure that the end cone is outside the carrier assembly. The surface spacing is uniform, which ensures the stability and consistency of the welding penetration, thereby ensuring the uniformity of the weld, improving the welding quality of the oval catalytic converter, eliminating the cracking of the catalytic converter weld seam, and having strong practicability.

The utility model has been exemplarily described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned manner, as long as various insubstantial improvements or direct application to other Occasions, all fall within the protection scope of the present utility model.

Claims (10)

1. an automobile catalytic device welding clamping device, it is characterized in that: the carrier module clamping mechanism (8) comprising fixed catalytic device carrier module, the both sides of described carrier module clamping mechanism (8) are respectively equipped with air inlet end cone clamping device and air outlet end cone clamping device; What described air inlet end cone clamping device and air outlet end cone clamping device comprised movable telescopic is respectively used to the prepackage profiling location-plate I (7) of air inlet end cone and the profiling location-plate II (12) for pre-installing air outlet end cone; The side of described profiling location-plate I (7) and profiling location-plate II (12) is respectively equipped with the locking device (5) being fixed air inlet end cone and air outlet end cone; Described carrier module clamping mechanism (8) comprises the C type arm (81) being driven the described carrier module of clamping by driving mechanism, and the center line of described C type arm (81) is consistent with the center line of described profiling location-plate I (7) and profiling location-plate II (12).

2. according to automobile catalytic device welding clamping device according to claim 1, it is characterized in that: described carrier module clamping mechanism (8) comprises two C type arms (81) be oppositely arranged, between described two C type arms (81), be provided with the lip block (83) placed and support described carrier module.

3. according to automobile catalytic device welding clamping device according to claim 2, it is characterized in that: described C type arm (81) inner top side and lower end be respectively equipped with contact with described carrier module hold block (82) tightly, hold block (82) crossing center line tightly and overlap with the centre of location line that described air inlet and outlet end is bored for described two groups.

4. according to automobile catalytic device welding clamping device according to claim 3, it is characterized in that: the driving mechanism of described carrier module clamping mechanism (8) comprises is located at the guide pin bushing (84) and guide rod (85) that described C type arm (81) lower end can be movable relatively, and the linkage (87) driving described guide pin bushing (84) and guide rod (85) to drive described C type arm (81) to move, the driving cylinder (88) that described linkage (87) controls to be connected with this linkage (87) by joystick (89) drives.

5., according to automobile catalytic device welding clamping device according to claim 4, it is characterized in that: described profiling location-plate I (7) and profiling location-plate II (12) are all connected with the profiling location-plate control cylinder (6) controlling its motion.The outside of described profiling location-plate I (7) and profiling location-plate II (12) is equipped with running bases (3), described profiling location-plate I (7) and being connected by motion guide rod (4) between profiling location-plate II (12) with described running bases (3).

6. according to automobile catalytic device welding clamping device according to claim 5, it is characterized in that: described locking device (5) comprises locking jaw cylinder (51), the front end of described locking jaw cylinder (51) is provided with the locating piece (52) being positioned at end cone air inlet, and described locating piece (52) front end is provided with locking jaw (53).

7., according to automobile catalytic device according to claim 6 welding clamping device, it is characterized in that: described profiling location-plate I (7) and profiling location-plate II (12) upper fit with the end conical surface imitation profile on be evenly distributed with multiple magnet (9).

8., according to automobile catalytic device welding clamping device according to claim 7, it is characterized in that: described profiling location-plate I (7), profiling location-plate II (12) and lip block (83) are equipped with inductive pick-up.

9. according to the automobile catalytic device welding clamping device described in any one of claim 1 to 8, it is characterized in that: described carrier module clamping mechanism (8), air inlet end cone clamping device and air outlet end cone clamping device are all located on pedestal (1), can be connected by relative sliding between wherein said air outlet end cone clamping device with described pedestal (1).

10. according to automobile catalytic device welding clamping device according to claim 9, it is characterized in that: described air outlet end cone clamping device is connected by slide block and is engaged on the rail plate (27) be located on described pedestal (1), and drives described air outlet end cone clamping device to move by sliding cylinder (10).