Positioning protection device for welding of barrel assembly and hump pipe

Abstract

The utility model provides an auxiliary welding device for a barrel assembly and a hump pipe, which can play a role in positioning when the barrel assembly and the hump pipe are welded, ensure the mounting precision of the hump pipe, protect the hump pipe and ensure the quality of products, and the barrel assembly is supported on a positioning platform by matching with an arc-shaped positioning block, so that the welding precision of the barrel assembly and the hump pipe is improved. The positioning platform is further provided with a plurality of hump supporting blocks which are arranged at intervals along the circumference, each hump supporting block is provided with a profiling cambered surface matched with the shape of a hump, the hump part of the hump pipe is supported on the profiling cambered surfaces of the hump supporting blocks, the hump pipe fixing mechanism comprises two pressing pieces which are oppositely arranged, each pressing piece comprises a semicircular holding ring, and the two clamping pieces are arranged on the positioning platform; the pressing pieces are connected with driving equipment, the driving equipment drives the semicircular embracing rings of the two pressing pieces to embrace and press the pipe wall of the hump pipe, the welding portion, matched with the cylinder assembly, of the hump pipe is exposed out of the upper ends of the semicircular embracing rings, and the width of the semicircular embracing rings is larger than the height of the hump portion of the hump pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of post-processing devices, in particular to a positioning protection device used for welding a cylinder assembly and a hump pipe. Background Art

[0002] DPF stands for diesel particulate filter on diesel vehicles. Its main function is to capture particulate matter that enters the exhaust system after diesel combustion through the filter device on the surface and inside the device to purify the exhaust gas emissions. During use, DPF will continue to accumulate particulate matter. When it accumulates to a certain extent, it needs to be cleaned or regenerated to restore its filtering performance. Designing DPF as a detachable structure can facilitate users or maintenance personnel to clean, replace or regenerate at any time, thereby ensuring that the filtering performance of DPF is always maintained in the best condition, while reducing maintenance costs and improving maintenance efficiency.

[0003] At present, the common connection method between the DPF cylinder and other unit cylinders is V-clamp 1A connection, the end face of one side of the cylinder is made into a hump 1B, and the other side of the cylinder connected to it is made into a flange 1C, such as Figure 2 In order to reduce the difficulty and cost of manufacturing the cylinder, the hump tube is usually an external part and fixed to the cylinder by welding.

[0004] For the hump pipe, it is not only necessary to achieve positioning with the cylinder during welding, but also considering that the hump pipe is an assembly matching component, there must be no welding slag on the surface, otherwise it will affect the connection effect, and it is also necessary to protect the hump pipe. Utility Model Content

[0005] In view of the above problems, the utility model provides a welding auxiliary device for a cylinder assembly and a hump tube, which can play a positioning role when the cylinder assembly and the hump tube are welded to ensure the installation accuracy of the hump tube, and also plays a role in protecting the hump tube to ensure the quality of the product.

[0006] The technical solution is as follows: a positioning protection device for welding a cylinder assembly and a hump pipe, comprising:

[0007] The positioning mechanism comprises: a positioning platform, on which a plurality of arc-shaped positioning blocks are arranged at intervals along a circumference, the cylinder assembly is supported on the positioning platform by cooperating with the arc-shaped positioning blocks, the positioning platform is also provided with a plurality of hump support blocks arranged at intervals along a circumference, the hump tube support block is provided with a contoured arc surface matching the hump shape, and the hump portion of the hump tube is supported on the contoured arc surface of the hump support block;

[0008] A hump tube fixing mechanism, the hump tube fixing mechanism comprising: two relatively arranged clamping members, the clamping members comprising semicircular holding rings, the clamping members being respectively connected to driving devices, the driving devices driving the semicircular holding rings of the two clamping members to hold and hold the tube wall of the hump tube, the welding portion where the hump tube cooperates with the cylinder assembly is exposed from the upper end of the semicircular holding ring, and the width of the semicircular holding ring is greater than the height of the hump portion of the hump tube.

[0009] Furthermore, the driving device includes slide rails arranged on both sides of the positioning platform, the slide rails are provided with a slider that cooperates with the slide rails, the slider is fixedly connected to a connecting plate, a bracket is fixed on the connecting plate, the clamping piece is fixed at the upper end of the bracket, the connecting plate is connected to a quick clamp, and the quick clamp can drive the clamping piece to move along the slide rails so that the semicircular rings of the two clamping pieces cooperate with each other to clamp the wall of the hump tube.

[0010] Furthermore, the positioning platform is detachably mounted on the base, the driving device is mounted on the connecting base plate, an adjustable mounting groove is provided on the base corresponding to the connecting base plate, the connecting base plate is mounted on the base by bolts in cooperation with the adjustable mounting groove, and the clamping piece is detachably mounted on the upper end of the bracket.

[0011] Furthermore, the arc-shaped positioning block and the hump support block are respectively provided with oval holes, and the positioning platform is correspondingly provided with mounting holes, and the arc-shaped positioning block and the hump support block are detachably mounted on the positioning platform.

[0012] Furthermore, a pad block is provided between the hump support block and the positioning platform.

[0013] Furthermore, a stopper is provided on the connecting plate, and a limiting block is provided on the connecting bottom plate corresponding to the stopper.

[0014] Furthermore, it also includes a cylinder fixing mechanism, which includes a vertical bracket arranged on one side, a vertical adjustment slot is provided on the vertical bracket, an adjustable mounting seat is installed on the vertical bracket by bolts in cooperation with the vertical adjustment slot, a flip clamp is fixed on the adjustable mounting seat, and the flip clamp is connected to the cylinder pressure plate.

[0015] Furthermore, the cylinder pressure plate is T-shaped, and soft pressure blocks are respectively arranged at both ends of a horizontal line of the T-shaped structure of the cylinder pressure plate.

[0016] Furthermore, a limit anti-loosening block is also provided on the vertical bracket, and the limit anti-loosening block is clamped on the vertical bracket by bolts. The limit anti-loosening block is located at the lower end of the adjustable mounting seat to limit the adjustable mounting seat.

[0017] The utility model is used for the positioning and protection device for welding the barrel assembly and the hump tube. The dual positioning of the barrel and the hump tube can be achieved through a positioning mechanism. For the pressing method of the hump tube, two pressing pieces are used to slide into place from both sides. The semicircular holding rings of the pressing pieces embrace and press the tube wall of the hump tube from both sides. While playing a fixed and tightening role, the two semicircular holding rings have a nearly full shielding effect on the hump tube. Only the welding part where the hump tube and the barrel assembly cooperate is exposed from the upper end of the semicircular holding ring, which is convenient for welding. During welding, the hump tube can be well protected to avoid the welding slag from falling onto the hump tube during welding, so as to avoid affecting the product quality. In addition, the positioning and protection device of the utility model is universal. The barrel diameter of each product is different. The arc positioning block and the hump support block used for barrel positioning and hump tube positioning are replaceable. The installation position of the driving mechanism of the hump tube fixing mechanism is adjustable. The pressing piece can be replaced. It has good universality and is suitable for barrel assembly products of multiple specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A half-section diagram of an existing exhaust gas treatment device;

[0019] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0020] Figure 3 A three-dimensional diagram of a positioning protection device for welding a barrel assembly and a hump tube in an embodiment;

[0021] Figure 4 A top view of a positioning protection device for welding a barrel assembly and a hump tube in an embodiment;

[0022] Figure 5 A three-dimensional diagram of a positioning protection device for welding a barrel assembly and a hump tube in another embodiment;

[0023] Figure 6 A schematic diagram of positioning a positioning protection device for welding a barrel assembly and a hump tube in another embodiment;

[0024] Figure 7 A side view showing the positioning of a positioning guard for welding a barrel assembly and a hump tube in another embodiment. DETAILED DESCRIPTION

[0025] See Figure 3 to Figure 4 , a positioning protection device for welding a barrel assembly and a hump pipe, comprising:

[0026] Positioning mechanism 100, the positioning mechanism 100 comprises: a positioning platform 101, on which are provided a plurality of arc-shaped positioning blocks 102 arranged at intervals along a circumference, the cylinder assembly 1 is supported on the positioning platform 101 by cooperating with the arc-shaped positioning blocks 102, the positioning platform 101 is also provided with a plurality of hump support blocks 103 arranged at intervals along a circumference, the hump tube support block 103 is provided with a contoured arc surface 104 matching the hump shape, and the hump portion 21 of the hump tube 2 is supported on the contoured arc surface of the hump support block 103;

[0027] The hump tube fixing mechanism 200 comprises: two relatively arranged clamping members 201, the clamping members comprise semicircular embracing rings 202, the clamping members are respectively connected with driving devices, the driving devices drive the semicircular embracing rings 202 of the two clamping members to embrace and press the tube wall 22 of the hump tube 2, the welding portion 23 of the hump tube 2 and the cylinder assembly 1 is exposed from the upper end of the semicircular embracing rings 202, the width of the semicircular embracing rings 202 is greater than the height of the hump portion 21 of the hump tube, the semicircular embracing rings 202 can almost completely cover the hump portion 21 of the hump tube, and in the top view, only the semicircular embracing rings 202 can be seen but not the hump portion 21 of the hump tube.

[0028] In the embodiment, the barrel assembly adopts the positioning of the barrel outer diameter in conjunction with the end face of the arc-shaped positioning block, and the hump tube positioning adopts the positioning of the hump support block in conjunction with the outer diameter of the hump tube, and the height positioning is performed with the contoured arc surface of the hump support block;

[0029] The driving device in the embodiment includes a slide rail 203 arranged on both sides of the positioning platform 101, and a slider 204 is arranged on the slide rail 203 to cooperate with the slide rail 203, the slider 204 is fixedly connected to the connecting plate 205, a bracket 206 is fixed on the connecting plate 205, the clamping member 201 is fixed to the upper end of the bracket 206, the connecting plate 205 is connected to a quick clamp 207, and the quick clamp 207 is a push-pull quick clamp. The quick clamp 207 can drive the clamp 201 along The slide rail moves so that the semicircular rings 202 of the two clamping pieces cooperate with each other to clamp the wall of the hump tube. In order to prevent the quick clamp 207 from being excessively displaced and damaging the hump tube, a stopper 209 is further provided on the connecting plate 205 in the embodiment, and a limiting block 210 is provided on the connecting bottom plate 208 corresponding to the stopper 209. When the quick clamp 207 is operated, the limiting block 210 limits the stopper, thereby limiting the displacement of the clamp 201 and preventing the semicircular ring 202 from damaging the hump tube.

[0030] Taking into account the inconsistency of the height of the cylinder assembly for each product and the different cylinder diameters in the later stage, in one embodiment, it is configured as follows: the positioning 101 is detachably mounted on the base 105, the driving device is mounted on the connecting bottom plate 208, an adjustable mounting groove 106 is provided on the base 105 corresponding to the connecting bottom plate 208, the connecting bottom plate 208 is mounted on the base 105 by bolts in cooperation with the adjustable mounting groove 106, and the clamping piece 201 is detachably mounted on the upper end of the bracket 206.

[0031] Taking into account the later changes in the cylinder diameter, the hump tube fixing mechanism is made movable and adjusted according to the cylinder diameter and the hump tube position. An adjustable mounting groove with adjustable position is opened on the base to adjust the lateral position of the driving device and the clamping block.

[0032] For the positioning mechanism 100, in order to increase its versatility, it is configured as follows: waist-shaped circular holes 107 are respectively provided on the arc-shaped positioning block 102 and the hump support block 103, and corresponding mounting holes are provided on the positioning platform 101, and the arc-shaped positioning block 102 and the hump support block 103 are detachably mounted on the positioning platform.

[0033] In addition, a pad block 108 is arranged between the hump support block and the positioning platform to achieve adjustable positioning height of the hump tube. The pad block 108 can be provided with a plurality of thin blocks of the same shape, on which holes are left for bolts to pass through. The pad height provided by the pad block 108 can be adjusted according to the required positioning height.

[0034] See Figure 5 , 6, 7, in one embodiment of the utility model, in order to more stably fix the cylinder assembly, on the basis of the aforementioned embodiment, a cylinder fixing mechanism 300 is further provided, and the cylinder fixing mechanism 300 includes a vertical bracket 301 arranged on one side, and a vertical adjustment slot 302 is provided on the vertical bracket 301, and an adjustable mounting seat 303 is mounted on the vertical bracket 301 by bolts and the vertical adjustment slot 302, and a flip clamp 304 is fixed on the adjustable mounting seat 303, and the flip clamp 304 is connected to a cylinder pressure plate 305. The flip clamp 304 can be operated to press the cylinder pressure plate 305 onto the cylinder assembly 1, so as to more stably fix the cylinder assembly.

[0035] In one embodiment, the cylinder pressure plate 305 is T-shaped, and soft pressure blocks 306 are respectively provided at both ends of a horizontal line of the T-shaped structure of the cylinder pressure plate 305. When pressed, the soft pressure blocks 306 cooperate with the cylinder wall of the cylinder assembly 1 to avoid damaging the cylinder wall of the cylinder assembly 1.

[0036] A limited anti-loosening block 307 is also provided on the vertical bracket 301. The limited anti-loosening block 307 is clamped on the vertical bracket 301 by bolts. The limited anti-loosening block 307 is located at the lower end of the adjustable mounting seat 303 to limit the adjustable mounting seat 303. In order to expand the versatility of the equipment and taking into account the inconsistent heights of the cylinder, the cylinder fixing mechanism 300 is made height-adjustable to adapt to cylinders of different heights. Considering the fixation of the clamping position, two limited anti-loosening blocks are added to lock the limiting position.

[0037] When using the positioning and protection device in the embodiment, the hump tube can be firstly put on the barrel assembly, and then the barrel assembly and the hump tube are placed on the positioning mechanism for positioning, and then pressed by the barrel fixing mechanism, and finally the hump tube is pressed and protected by the hump tube fixing mechanism, and then welding can be performed. The positioning and protection device for welding the barrel assembly and the hump tube in the embodiment can realize the dual positioning of the barrel and the hump tube through a positioning mechanism, ensuring the position stability and accuracy of the barrel and the hump tube during the welding process; for the pressing method of the hump tube, two pressing members are used to slide into place from both sides, and the semicircular holding rings of the pressing members hold and hold the wall of the hump tube from both sides. While playing a fixing and holding role, the two semicircular holding rings have a nearly full shielding effect on the hump tube, and while fixing and holding the hump tube, it effectively prevents welding slag from falling onto the hump tube during welding, thereby ensuring the stability and reliability of product quality. In addition, the design of the device fully considers the convenience of operation, allowing operators to easily complete positioning, pressing and other operations during use, which reduces the difficulty of operation and improves work efficiency. It also reduces quality problems caused by improper operation and further improves the overall quality level of the product.

[0038] In addition, the positioning and protection device has excellent versatility and can adapt to barrel assembly products of different specifications. For products of different specifications and barrel diameters, the device's arc-shaped positioning blocks, hump support blocks, and clamping parts are designed to be replaceable. This design flexibility greatly improves the scope of application and use value of the device. The use of such a replaceable modular design makes it convenient and efficient to replace parts to adapt to the production of new products or to perform daily equipment maintenance in actual applications, further optimizing the production process and helping to improve overall production efficiency.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A positioning protection device for welding a barrel assembly and a hump pipe, comprising: The positioning mechanism comprises: a positioning platform, wherein the positioning platform is provided with a plurality of arc-shaped positioning blocks arranged at intervals along the circumference, and the cylinder assembly is supported on the positioning platform by cooperating with the arc-shaped positioning blocks, and is characterized in that: The positioning platform is also provided with a plurality of hump support blocks arranged at intervals along the circumference, the hump tube support block is provided with a contoured arc surface matching the hump shape, and the hump portion of the hump tube is supported on the contoured arc surface of the hump support block; The hump tube fixing mechanism comprises: two clamping members arranged opposite to each other, the clamping members comprise semicircular holding rings, the clamping members are respectively connected with driving devices, the driving devices drive the semicircular holding rings of the two clamping members to hold and hold the tube wall of the hump tube, the welding part where the hump tube cooperates with the cylinder assembly is exposed from the upper end of the semicircular holding ring, and the width of the semicircular holding ring is greater than the height of the hump part of the hump tube.

2. A positioning and protection device for welding a barrel assembly and a hump pipe according to claim 1, characterized in that: The driving device includes slide rails arranged on both sides of the positioning platform, the slide rails are provided with sliders that cooperate with the slide rails, the slider is fixedly connected to a connecting plate, a bracket is fixed on the connecting plate, the clamping piece is fixed to the upper end of the bracket, the connecting plate is connected to a quick clamp, and the quick clamp can drive the clamping piece to move along the slide rails so that the semicircular rings of the two clamping pieces cooperate with each other to clamp the wall of the hump tube.

3. A positioning protection device for welding a barrel assembly and a hump tube according to claim 2, characterized in that: The positioning platform is detachably mounted on the base, the driving device is mounted on the connecting base plate, an adjustable mounting groove is provided on the base corresponding to the connecting base plate, the connecting base plate is mounted on the base by bolts in cooperation with the adjustable mounting groove, and the clamping piece is detachably mounted on the upper end of the bracket.

4. A positioning protection device for welding a barrel assembly and a hump pipe according to claim 1, characterized in that: The arc-shaped positioning block and the hump support block are respectively provided with waist-shaped holes, and the positioning platform is correspondingly provided with mounting holes. The arc-shaped positioning block and the hump support block are detachably mounted on the positioning platform.

5. A positioning protection device for welding a barrel assembly and a hump pipe according to claim 4, characterized in that: A pad block is arranged between the hump support block and the positioning platform.

6. A positioning protection device for welding a barrel assembly and a hump tube according to claim 3, characterized in that: The connecting plate is provided with a stopper, and the connecting bottom plate is provided with a limiting block corresponding to the stopper.

7. A positioning and protection device for welding a barrel assembly and a hump tube according to claim 1, characterized in that: It also includes a cylinder fixing mechanism, which includes a vertical bracket arranged on one side, a vertical adjustment slot is provided on the vertical bracket, an adjustable mounting seat is installed on the vertical bracket by bolts in cooperation with the vertical adjustment slot, a flip clamp is fixed on the adjustable mounting seat, and the flip clamp is connected to the cylinder pressure plate.

8. A positioning protection device for welding a barrel assembly and a hump pipe according to claim 7, characterized in that: The cylinder pressing plate is T-shaped, and soft pressing blocks are respectively arranged at two ends of one horizontal line of the T-shaped structure of the cylinder pressing plate.

9. A positioning protection device for welding a barrel assembly and a hump tube according to claim 7, characterized in that: The vertical bracket is also provided with a limited anti-loosening block, which is clamped on the vertical bracket by bolts. The limited anti-loosening block is located at the lower end of the adjustable mounting seat to limit the adjustable mounting seat.

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