Diesel engine silencer hanging lug welding tool
Through the use of diesel engine muffler ear-hung welding tooling, the problems of inefficiency and inaccurate welding positions in the existing technology have been solved, and efficient and accurate ear-hung welding has been achieved.
Patent Information
- Application Number
- CN202422363276.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The prior art diesel engine muffler ear-hanging welding method is inefficient and cannot ensure that the welding position meets the design requirements.
The diesel engine muffler ear-hook welding tool is adopted, including the substrate, cylinder positioning plate, inlet and exhaust hole positioning column, rear end fixing assembly, front end fixing assembly and ear-hook fixing assembly. Through precise positioning and fixing, six ear-hooks are fixed at one-time at the welding position that meets the requirements.
The accurate welding of six hanging ears is achieved, ensuring the welding quality and simplifying the operation process.
Smart Images
Figure CN223129829U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a welding technology for the hanger ears of a diesel engine muffler, and particularly to a welding tooling for the hanger ears of a diesel engine muffler. Background Art
[0002] The diesel engine muffler is of a cylindrical structure and is installed on the frame of the diesel engine. To facilitate the installation of the diesel engine muffler, several hanger ears need to be welded on the outer circumference of the diesel engine muffler. The hanger ears are of a U-shaped structure, and welding support plates are respectively arranged and extended towards both sides at the ends of the U-shaped opening. During welding, the two welding support plates are closely attached to the outer surface of the cylinder of the diesel engine muffler, and the two welding support plates are respectively welded to the outer surface of the diesel engine muffler by using an electric welding machine or a spot welding machine. According to the design requirements, six support ears need to be welded on each diesel engine muffler, three in a group are respectively welded at both ends of the diesel engine muffler, and it is required to be welded on the same circumference; moreover, the welding position of each hanger ear on the circumference also needs to form a set angle with the axis (radial direction) of the air inlet and exhaust holes arranged on the diesel engine muffler (see the attached Figure 1 , in the figure, a is the cylinder of the diesel engine muffler, b is the hanger ear, and c is the air inlet and exhaust hole). The existing welding method for the hanger ears of the diesel engine muffler uses a simple fixture to fix each hanger ear at the set position on the surface of the cylinder of the diesel engine muffler one by one, and then welds. This method not only has low efficiency, but also cannot ensure that the welding position meets the design requirements.
[0003] Obviously, the existing welding method for the hanger ears of the diesel engine muffler has problems such as low efficiency and inability to ensure that the welding position meets the design requirements. Summary of the Invention
[0004] In order to solve the problems existing in the existing welding method for the hanger ears of the diesel engine muffler, such as low efficiency and inability to ensure that the welding position meets the design requirements, the utility model provides a welding tooling for the hanger ears of a diesel engine muffler.
[0005] The welding tooling for the hanger ears of the diesel engine muffler of the utility model includes a base plate, a cylinder positioning plate, intake and exhaust hole positioning columns, a rear-end fixing component, a front-end fixing component, and a hanger ear fixing component; the base plate is a rectangular plate, and two parallel trapezoidal chutes are arranged at both ends of the long side of the base plate; the cylinder positioning plate is composed of two rectangular plates with arc-shaped notches at the upper part, which are fixedly arranged at intervals on the surface of the middle part of the base plate, and the radius of the arc-shaped notch is the same as the radius of the cylinder of the diesel engine muffler; the intake and exhaust hole positioning columns are two cylinders, which are fixedly arranged at intervals on the outer sides of the two cylinder positioning plates; the diameter of the positioning column is the same as the inner diameter of the intake and exhaust holes on the cylinder of the diesel engine muffler, and the distance between the positioning columns is the same as the distance between the intake and exhaust holes on the cylinder of the diesel engine muffler; the rear-end fixing component is fixed at one end of the long side of the base plate, and includes a support plate I, a stud I, a nut I, and a positioning disc; the support plate I is of an L-shaped structure and is fixed at one end of the long side of the base plate through the short folded edge of the support plate; the stud I is fixed in the middle of the inner side of the long folded edge of the support plate I, and the axis of the stud I is coaxial with the axis of the arc-shaped notch of the cylinder positioning plate; the nut I is screwed on the stud I, and four wrenches are evenly distributed on the outer circle of the nut I; the positioning disc is coaxially fixed at the outer end of the nut I, and the shape of the outer side surface of the positioning disc matches the shape of the bottom end of the cylinder of the diesel engine muffler; the front-end fixing component is fixed at the other end of the long side of the base plate, and includes a support plate II, a stud II, a nut II, and a positioning column; the structure and installation method of the front-end fixing component are the same as those of the rear-end fixing component, and the difference is only that the positioning disc of the rear-end fixing component is replaced by a positioning column, and the diameter of the front end of the positioning column is the same as the inner diameter of the ventilation hole at the front end of the cylinder of the oil engine muffler; there are two hanger ear fixing components, which are respectively installed in the trapezoidal chutes at both ends of the long side of the base plate, and include an annular bracket and a clamping mechanism; the annular bracket is a rigid annular structure with notches at the bottom, and the two legs formed by the bottom notches are trapezoidal legs matching the trapezoidal chutes of the base plate. The annular brackets are respectively slidably installed in the trapezoidal chutes at both ends of the long side of the base plate through the trapezoidal legs; three through holes corresponding to the welding positions of the hanger ears on the circumference of the cylinder of the diesel engine muffler are arranged on the circumference of the annular bracket of the clamping mechanism, and grooves are arranged at the edges of the through holes; there are six clamping mechanisms, and three are installed in a group in the through holes on the circumference of the annular bracket, and include a ball-head pull rod, a clamping plate, and a spring; the ball-head pull rod is a round rod with a sphere at one end, and a boss matching the groove of the annular bracket is arranged on the outer surface of the pull rod. The ball head is inserted outward into the through hole on the annular bracket; the clamping plate is of a U-shaped structure, and the opening is fixed inward at the other end of the ball-head pull rod; the opening width of the U-shaped structure of the clamping plate is the same as the width of the hanger ear, and a cylinder with the same diameter as the through hole of the hanger ear is also arranged in the middle of the opening; the spring is sleeved on the ball-head pull rod and is installed between the inner circle of the annular bracket and the clamping plate.
[0006] Further, a permanent magnet is installed on the inner side of the clamping plate of the clamping mechanism of the hanger ear fixing component.
[0007] Furthermore, two through holes are respectively provided on the short folded edges of the support plate I and the support plate II, and trapezoidal nuts are arranged in the trapezoidal sliding grooves below the through holes; the support plate I and the support plate II are respectively fixed on the substrate by bolts passing through the through holes in the short folded edges and the trapezoidal nuts; wherein, the trapezoidal nut refers to a nut whose outer shape matches the trapezoidal sliding groove of the substrate.
[0008] The beneficial technical effect of the welding tooling for the hanger of the diesel engine muffler of the present utility model is that six hangers can be fixed at the welding positions meeting the requirements at one time, the operation is simple and the welding quality can be guaranteed. Description of the Drawings
[0009] Attached Figure 1 is a three-dimensional schematic diagram of the hanger of the diesel engine muffler;
[0010] Attached Figure 2 is a three-dimensional schematic diagram of the welding tooling for the hanger of the diesel engine muffler of the present utility model;
[0011] Attached Figure 3 is a three-dimensional schematic diagram of the rear-end fixing component of the present utility model;
[0012] Attached Figure 4 is a three-dimensional schematic diagram of the front-end fixing component of the present utility model;
[0013] Attached Figure 5 is a three-dimensional schematic diagram of the hanger fixing component of the present utility model;
[0014] Attached Figure 6 is a three-dimensional schematic diagram of the clamping state of the welding tooling for the hanger of the diesel engine muffler of the present utility model.
[0015] In the figure, 1 is the substrate, 2 is the cylinder positioning plate, 3 is the intake and exhaust hole positioning post, 4 is the rear-end fixing component, 4-1 is the support plate I, 4-2 is the stud I, 4-3 is the nut I, 4-4 is the positioning disc, 5 is the front-end fixing component, 5-1 is the support plate II, 5-2 is the stud II, 5-3 is the nut II, 5-4 is the positioning post, 6 is the hanger fixing component, 6-1 is the annular bracket, 6-2 is the ball head pull rod, 6-3 is the clamping plate, 6-4 is the spring, 7 is the trapezoidal nut, a is the cylinder of the diesel engine muffler, b is the hanger, and c is the intake and exhaust hole.
[0016] The welding tooling for the hanger of the diesel engine muffler of the present utility model will be further described below in conjunction with the drawings and specific embodiments. Specific Embodiments
[0017] From the attached Figure 2 、 3As can be seen from Figures 4, 5, and 6, the welding tooling for the hanger ears of the diesel engine muffler of the present utility model includes a base plate 1, a cylinder positioning plate 2, intake and exhaust hole positioning columns 3, a rear-end fixing assembly 4, a front-end fixing assembly 5, and a hanger ear fixing assembly 6; the base plate is a rectangular plate, and two parallel trapezoidal chutes are provided at both ends of the long side of the base plate; the cylinder positioning plates are two rectangular plates with arc-shaped notches at the upper part, which are fixedly arranged at intervals on the surface of the middle part of the base plate, and the radius of the arc-shaped notch is the same as the radius of the cylinder of the diesel engine muffler; the intake and exhaust hole positioning columns are two cylinders, which are fixedly arranged at intervals on the outer sides of the two cylinder positioning plates; the diameter of the positioning column is the same as the inner diameter of the intake and exhaust holes on the cylinder of the diesel engine muffler, and the spacing between the positioning columns is the same as the spacing between the intake and exhaust holes on the cylinder of the diesel engine muffler; the rear-end fixing assembly is fixed at one end of the long side of the base plate and includes a support plate I 4-1, a stud I 4-2, a nut I 4-3, and a positioning disc 4-4; the support plate I is an L-shaped structure and is fixed at one end of the long side of the base plate through the short folded edge of the support plate; the stud I is fixed in the middle of the inner side of the long folded edge of the support plate I, and the axis of the stud I is coaxial with the axis of the arc-shaped notch of the cylinder positioning plate; the nut I is screwed on the stud I, and four wrenches are evenly distributed on the outer circle of the nut I; the positioning disc is coaxially fixed at the outer end of the nut I, and the shape of the outer side surface of the positioning disc matches the shape of the bottom end of the cylinder of the diesel engine muffler; the front-end fixing assembly is fixed at the other end of the long side of the base plate and includes a support plate II 5-1, a stud II 5-2, a nut II 5-3, and a positioning column 5-4; the structure and installation method of the front-end fixing assembly are the same as those of the rear-end fixing assembly, and the only difference is that the positioning disc of the rear-end fixing assembly is replaced by a positioning column, and the diameter of the front end of the positioning column is the same as the inner diameter of the ventilation hole at the front end of the cylinder of the diesel engine muffler; there are two hanger ear fixing assemblies, which are respectively installed in the trapezoidal chutes at both ends of the long side of the base plate, and include an annular bracket 6-1 and a clamping mechanism; the annular bracket is a rigid annular structure with notches at the bottom, and the two legs formed by the bottom notches are trapezoidal legs matching the trapezoidal chutes of the base plate. The annular bracket is respectively slidably installed in the trapezoidal chutes at both ends of the long side of the base plate through the trapezoidal legs; three through holes corresponding to the welding positions of the hanger ears on the circumference of the cylinder of the diesel engine muffler are provided on the circumference of the clamping mechanism annular bracket, and grooves are provided at the edges of the through holes; there are six clamping mechanisms, and three are installed in a group in the through holes on the circumference of the annular bracket, and include a ball-headed pull rod 6-2, a clamping plate 6-3, and a spring 6-4; the ball-headed pull rod is a round rod with a sphere at one end, and a boss matching the groove of the annular bracket is provided on the outer surface of the pull rod. The ball head is inserted outward into the through hole on the annular bracket; the clamping plate is a U-shaped structure, and the opening is fixed inward at the other end of the ball-headed pull rod; the opening width of the U-shaped structure of the clamping plate is the same as the width of the hanger ear, and a cylinder with the same diameter as the through hole of the hanger ear is also provided in the middle of the opening; the spring is sleeved on the ball-headed pull rod and is installed between the inner circle of the annular bracket and the clamping plate.During specific operation, place the diesel engine muffler cylinder body on the cylinder body positioning plate. At the same time, respectively sleeve the air inlet and outlet holes on the diesel engine muffler cylinder body onto two positioning columns, thereby achieving the radial and axial positioning of the diesel engine muffler cylinder body; turn the nut Ⅰ of the rear-end fixing assembly to make the positioning disc embed into the bottom end of the diesel engine muffler cylinder body, and turn the nut Ⅱ of the rear-end fixing assembly to make the positioning column insert into the front-end vent hole of the diesel engine muffler cylinder body, thereby achieving the fixation of the diesel engine muffler cylinder body; push the annular brackets on both sides to reach the set position, place the ear to be welded on the U-shaped opening of the clamping plate. At the same time, rotate the ball head pull rod so that the boss on the outer surface of the pull rod aligns with the through-hole groove of the annular bracket. Under the action of the spring, the ball head pull rod will move inward, driving the clamping plate to approach the diesel engine muffler cylinder body until the ear welding support plate is in close contact with the diesel engine muffler cylinder body, thereby achieving the positioning and fixation of the ear; manually or by a manipulator, spot-weld each ear one by one. Then, pull the ball head pull rod to make the boss of the pull rod move to the outside of the annular bracket, rotate the ball head pull rod to make the boss of the pull rod catch on the outside of the annular bracket, and push the annular bracket back to both ends of the base plate; continue to firmly weld the ears, loosen the nut Ⅰ and nut Ⅱ, and remove the diesel engine muffler cylinder body to complete the welding of the ears of the diesel engine muffler cylinder body. The welding tooling for the ears of the diesel engine muffler of the present utility model precisely positions and fixes the diesel engine muffler cylinder body and each ear respectively before welding, and fixes six ears at the required welding positions at one time (see the appendix. Figure 6 ) and can effectively ensure the welding quality. Since the annular bracket is used as the basis for ear positioning and fixation, the axial and radial positions of the ears on the circumference are very accurate; and the method of using a spring to drive the pull rod and the clamping plate to fix the ears makes the operation relatively simple.
[0018] As one of the preferred technical solutions, a permanent magnet is installed on the inner side of the clamping plate of the ear fixing assembly clamping mechanism. In this way, when placing the ear in the U-shaped opening of the clamping plate, the permanent magnet will adsorb the ear on the inner side of the clamping plate until the spring presses the two welding support plates of the ear against the outer circle of the diesel engine muffler cylinder body. Thereby, it facilitates the operation of ear positioning and fixation.
[0019] As one of the preferred technical solutions, two through-holes are respectively provided on the short folded edges of the support plate Ⅰ and the support plate Ⅱ, and a trapezoidal nut 7 is provided in the trapezoidal chute below the through-holes; the support plate Ⅰ and the support plate Ⅱ are respectively fixed on the base plate by bolts passing through the through-holes of the short folded edges and trapezoidal nuts; among them, the trapezoidal nut refers to a nut whose outer shape matches the trapezoidal chute of the base plate. Using trapezoidal nuts to fix the support plate Ⅰ and the support plate Ⅱ can make the distance between the support plate Ⅰ and the support plate Ⅱ adjustable, thereby adapting to the welding of diesel engine muffler ears of different specifications and models.
[0020] Obviously, the beneficial technical effect of the welding tooling for the hanger ears of the diesel engine muffler of the present utility model is that six hanger ears can be fixed at the welding positions meeting the requirements at one time, with simple operation and guaranteed welding quality.
Claims
1. A welding tooling for the hanger ear of a diesel engine muffler, characterized in that, The welding tooling includes a base plate, a cylinder positioning plate, intake and exhaust hole positioning columns, a rear-end fixing assembly, a front-end fixing assembly, and an ear fixing assembly; the base plate is a rectangular plate, and two parallel trapezoidal chutes are provided at both ends of the long side of the base plate; the cylinder positioning plate consists of two rectangular plates with arc-shaped notches at the upper part, which are fixedly arranged at intervals on the surface of the middle part of the base plate, and the radius of the arc-shaped notch is the same as the radius of the diesel engine muffler cylinder; the intake and exhaust hole positioning columns are two cylinders, which are fixedly arranged at intervals on the outer sides of the two cylinder positioning plates; the diameter of the positioning column is the same as the inner diameter of the intake and exhaust holes on the diesel engine muffler cylinder, and the spacing between the positioning columns is the same as the spacing between the intake and exhaust holes on the diesel engine muffler cylinder; the rear-end fixing assembly is fixed at one end of the long side of the base plate and includes a support plate I, a stud I, a nut I, and a positioning disc; the support plate I is an L-shaped structure and is fixed at one end of the long side of the base plate through the short folded edge of the support plate; the stud I is fixed in the middle of the inner side of the long folded edge of the support plate I, and the axis of the stud I is coaxial with the axis of the arc-shaped notch of the cylinder positioning plate; the nut I is screwed on the stud I, and four wrenches are evenly distributed on the outer circle of the nut I; the positioning disc is coaxially fixed at the outer end of the nut I, and the shape of the outer side surface of the positioning disc matches the shape of the bottom end of the diesel engine muffler cylinder; the front-end fixing assembly is fixed at the other end of the long side of the base plate and includes a support plate II, a stud II, a nut II, and a positioning column; the structure and installation method of the front-end fixing assembly are the same as those of the rear-end fixing assembly, except that the positioning disc of the rear-end fixing assembly is replaced by a positioning column, and the diameter of the front end of the positioning column is the same as the inner diameter of the ventilation hole at the front end of the diesel engine muffler cylinder; there are two ear fixing assemblies, which are respectively installed in the trapezoidal chutes at both ends of the long side of the base plate and include an annular bracket and a clamping mechanism; the annular bracket is a rigid annular structure with a notch at the bottom, and the two legs formed by the bottom notch are trapezoidal legs matching the trapezoidal chutes of the base plate. The annular bracket is slidably installed in the trapezoidal chutes at both ends of the long side of the base plate through the trapezoidal legs; three through holes corresponding to the welding positions of the ears on the circumference of the diesel engine muffler cylinder are provided on the circumference of the clamping mechanism annular bracket, and grooves are provided at the edges of the through holes; there are six clamping mechanisms, which are installed in groups of three in the through holes on the circumference of the annular bracket and include a ball-head pull rod, a clamping plate, and a spring; the ball-head pull rod is a round rod with a sphere at one end, and a boss matching the groove of the annular bracket is provided on the outer surface of the pull rod. The ball head is inserted outward into the through hole on the annular bracket; the clamping plate is a U-shaped structure, and the opening is fixed inward at the other end of the ball-head pull rod; the opening width of the U-shaped structure of the clamping plate is the same as the width of the ear, and a cylinder with a diameter the same as the through hole of the ear is also provided in the middle of the opening; the spring is sleeved on the ball-head pull rod and is installed between the inner circle of the annular bracket and the clamping plate.
2. The diesel engine muffler hanger welding tooling according to claim 1, characterized in that, A permanent magnet is installed on the inner side of the clamping plate of the ear fixing assembly clamping mechanism.
3. The diesel engine muffler hanger welding tooling according to claim 1, characterized in that, Two through holes are respectively arranged on the short folded edges of the support plate I and the support plate II, and trapezoidal nuts are arranged in the trapezoidal sliding grooves below the through holes; the support plate I and the support plate II are respectively fixed on the base plate by bolts passing through the through holes in the short folded edges and the trapezoidal nuts; wherein, the trapezoidal nut refers to a nut whose outer shape matches the trapezoidal sliding groove of the base plate.