CN209811610U - Welding fixture for exhaust pipe - Google Patents
Welding fixture for exhaust pipe Download PDFInfo
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- CN209811610U CN209811610U CN201920394965.1U CN201920394965U CN209811610U CN 209811610 U CN209811610 U CN 209811610U CN 201920394965 U CN201920394965 U CN 201920394965U CN 209811610 U CN209811610 U CN 209811610U
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Abstract
The utility model relates to an exhaust pipe manufacture equipment technical field discloses an exhaust pipe welding jig, include: a base; the exhaust pipe clamping mechanism is arranged on the upper surface of the base; the flange clamping mechanism is arranged on the upper surface of the base; when the exhaust pipe clamping mechanism fixes the exhaust pipe, one end of the exhaust pipe is coaxial with the flange plate, and the end face or the outer side wall of the exhaust pipe close to the flange plate is connected with the surface of the flange plate or the inner side wall of the opening. The utility model discloses accuracy when having guaranteed exhaust duct and ring flange contact has guaranteed the stability when the two welds simultaneously, has improved welding quality, avoids influencing welded quality because of the two takes place to remove when welding to work efficiency has been improved.
Description
Technical Field
The utility model relates to an exhaust pipe manufacture equipment technical field, more specifically say, it relates to an exhaust pipe welding jig.
Background
The exhaust pipe is a part of an automobile engine exhaust system, the exhaust system mainly comprises an exhaust manifold, an exhaust pipe and a silencer, a three-calibration catalyst for controlling the emission of pollutants of an engine is generally arranged in the exhaust system, the exhaust pipe generally comprises a front exhaust pipe and a rear exhaust pipe, the shape of the exhaust pipe is divided into various types, the exhaust pipe needs to be welded with a flange plate at one end of the exhaust pipe in the production process, and in order to ensure the welding precision and rapidity, the exhaust pipe and the flange plate need to be clamped in the welding process, so that an exhaust pipe welding clamp is needed.
SUMMERY OF THE UTILITY MODEL
Stability when blast pipe welding jig centre gripping is relatively poor among the practical application, work efficiency when the centre gripping of the exhaust duct of the different grade type that can not adapt to and the centre gripping is low this problem, the utility model aims to provide a blast pipe welding jig, concrete scheme is as follows:
an exhaust pipe welding jig comprising:
a base;
the exhaust pipe clamping mechanism is arranged on the upper surface of the base and used for clamping and fixing the exhaust pipeline;
the flange plate clamping mechanism is arranged on the upper surface of the base and used for clamping the fixed flange plate;
when the exhaust pipe clamping mechanism fixes the exhaust pipe, one end of the exhaust pipe is coaxial with the flange plate, and the end face or the outer side wall of the exhaust pipe close to the flange plate is connected with the surface of the flange plate or the inner side wall of the opening.
Through the technical scheme, the exhaust pipe and the flange plate are respectively clamped through the exhaust pipe clamping mechanism and the flange plate clamping mechanism, the stability of the exhaust pipe and the flange plate during welding is guaranteed, the influence on welding due to the movement of the exhaust pipe and the flange plate is avoided, the working efficiency is improved, meanwhile, the outer side wall of the exhaust pipe is in butt joint with the inner side wall of the opening of the flange plate, the accuracy of contact of the outer side wall and the contact surface of the flange plate is guaranteed, and the welding quality is improved.
Further, the exhaust pipe clamping mechanism comprises at least one exhaust pipe clamping seat, and at least one clamping groove for clamping the exhaust pipeline is formed in the exhaust pipe clamping seat;
the clamping groove is formed in one end, far away from the base, of the exhaust pipe clamping seat;
a first pressing component for pressing the exhaust pipeline is arranged at the notch of the clamping groove;
the first pressing assembly comprises a first base, a first pressing handle and a first pressing block, the first base is arranged on one side of the exhaust pipe clamping seat, the first pressing handle is in transmission connection with the first pressing block, and the first pressing handle and the first pressing block are both rotationally connected to the first base;
when the first pressing handle moves to the first position, the first pressing and holding block presses the exhaust pipeline placed in the clamping groove;
when the first pressing handle moves to the second position, the first pressing block is separated from the exhaust pipeline placed in the clamping groove.
Through above-mentioned technical scheme, prevent that exhaust duct self from taking place the axial rotation, stability when can strengthening the exhaust duct centre gripping, the manual first subassembly that compresses tightly simultaneously not only can improve exhaust duct's stability, steerable centre gripping to the calandria of different diameters size simultaneously, convenient to use.
Furthermore, a plurality of placing blocks are fixed on the inner side wall of the clamping groove;
the placing block is connected with a regulating pad used for supporting an exhaust pipeline along the length direction of the inner side wall of the clamping groove in a threaded manner.
Through above-mentioned technical scheme, the adaptability when utilizing the adjusting pad can improve the exhaust duct centre gripping, stability when improving the exhaust duct centre gripping, the adjusting pad is convenient for change simultaneously to satisfy the exhaust duct's of different diameters size centre gripping, enlarge application scope.
Furthermore, the number of the exhaust pipe clamping seats is two, and the two clamping seats are arranged along the length direction of the exhaust pipeline;
wherein, be provided with the stopper that is used for restricting when exhaust duct welds along its length direction motion on keeping away from flange disc fixture's the exhaust pipe grip slipper.
Through above-mentioned technical scheme, increased the quantity of exhaust duct centre gripping point to stability when further having improved the exhaust duct centre gripping, the setting of stopper can prevent that the ascending removal of its length direction from appearing in the exhaust duct simultaneously, guarantees the stability behind the exhaust duct centre gripping equally.
Furthermore, a hanging bracket clamping mechanism is arranged on one side of an exhaust pipe clamping seat close to the flange plate clamping mechanism;
the hanger clamping mechanism is fixed on the upper surface of the base and used for fixing a hanger fixed on the exhaust pipeline;
the hanger clamping mechanism comprises a fixed column, the fixed column is fixed on the surface, far away from the base, of the base, a second pressing assembly used for fixing the hanger is arranged on the fixed column, and a hanger clamping groove used for fixing the hanger is formed in the surface, far away from the base, of the fixed column;
the second pressing assembly is arranged at one end, far away from the base, of the fixing column and comprises a second pressing handle and a second pressing block, the second pressing handle is in transmission connection with the second pressing block, and the second pressing handle and the second pressing block are rotationally connected to the fixing column;
when the second pressing handle moves to the first position, the second pressing and holding block presses the hanging bracket placed in the hanging bracket clamping groove;
when the second pressing handle moves to the second position, the second pressing block is separated from the hanging bracket placed in the hanging bracket clamping groove.
Through the technical scheme, the hanging bracket fixed on the exhaust pipeline can be fixed, the exhaust pipeline fixing device is more suitable for fixing the exhaust pipeline in different forms, the adaptability of the clamp is improved, the clamping is convenient, the stability during clamping is ensured, meanwhile, the clamping of the hanging bracket by the second pressing assembly can be controlled, the use is facilitated, the pressing of the hanging bracket in different sizes can be adapted, and the use range of the whole welding clamp is enlarged.
Furthermore, the flange clamping mechanism comprises a flange clamping seat which is detachably fixed on the base, and one side of the flange clamping seat, which faces the exhaust pipe clamping mechanism, is provided with a fixing part for fixing the flange and the exhaust pipe;
the fixing piece comprises a cylindrical structure which is detachably arranged on the flange plate clamping seat, and the size of the section of the cylindrical structure, which is perpendicular to the length direction of the cylindrical structure, is matched with the shape and size of the end part of the exhaust pipeline;
when the exhaust duct is in a fixed state, the inner side wall of the end part of the exhaust duct is sleeved with the outer side wall of the cylindrical structure.
Through the technical scheme, the port of the exhaust pipeline is fixed with the flange plate, the contact positions of the port and the flange plate are ensured to be coincident, the welding accuracy is ensured, and meanwhile, the flange plate clamping mechanism is convenient to detach, so that the replacement is facilitated, and the service life of the whole welding clamp is prolonged.
Further, be provided with the clamping component who is used for pressing from both sides tight ring flange on the ring flange grip slipper, clamping component includes:
the clamping jaw is arranged on the flange plate clamping seat and used for clamping and fixing the flange plate;
the clamping jaws are of a U-shaped structure, the corners of the outer side of one end of each clamping jaw close to the direction of the flange plate are provided with round corners;
the pushing mechanism is detachably connected with the clamping jaw;
the pushing mechanism drives the clamping jaw to clamp and separate the clamping jaw from the flange plate;
the pushing mechanism is arranged on one side, far away from the exhaust pipe clamping seat, of the flange plate clamping seat, and can be arranged as an air cylinder.
Through above-mentioned technical scheme, can prevent that ring flange self from taking place the axial and rotating, stability when having improved the ring flange centre gripping has further improved the stability of clamping jaw centre gripping in-process simultaneously.
Furthermore, a supporting piece is arranged on one side of the flange plate clamping seat opposite to the pushing mechanism;
the supporting piece is used for supporting the clamping jaw;
the supporting piece comprises supporting plates which are detachably arranged on two sides of the flange plate clamping seat, a groove is formed in the side wall of each supporting plate, and the clamping jaw penetrates through the groove and is in lap joint with the groove;
a through groove is formed in the clamping jaw, and a guide rod penetrating through the through groove is fixed inside the groove along the vertical direction of the clamping jaw;
the guide bar is used for guiding the movement of the clamping jaws.
Through above-mentioned technical scheme, the setting of recess can further improve the stability of clamping jaw in the motion process, and the guide bar is used for leading the motion of clamping jaw, prevents that the condition of skew from appearing in the clamping jaw when the centre gripping, and the accuracy when having improved the clamping jaw centre gripping guarantees the centre gripping quality.
Furthermore, the flange plate clamping seat is connected with the base in a sliding mode through a sliding rail, and a driving mechanism for driving the flange plate clamping mechanism is arranged on the base and located on one side, away from the exhaust pipe clamping mechanism, of the flange plate clamping seat;
the driving mechanism is positioned on the upper surface of one side, away from the exhaust pipe clamping mechanism, of the base away from the flange plate clamping mechanism and is fixedly arranged in a direction perpendicular to the length direction of the exhaust pipeline.
Through the technical scheme, the clamping device can be suitable for clamping the exhaust pipelines with different lengths, and the application range of the whole welding clamp is widened.
Furthermore, the driving mechanism comprises a fixed seat, a third pressing handle and a connecting assembly, the fixed seat is fixed on the upper surface of the base, the third pressing handle is connected with the flange plate clamping seat through the connecting assembly, and the third pressing handle is rotatably connected with the connecting assembly;
when the third pressing handle is located at the first position, the driving mechanism drives the flange plate clamping seat to move to one end, close to the exhaust pipe clamping mechanism, of the sliding rail;
when the third pressing handle is located at the second position, the driving mechanism drives the flange plate clamping seat to move to one end, far away from the exhaust pipe clamping mechanism, of the sliding rail.
Through above-mentioned technical scheme, through controlling the third pressure handle, but the displacement of manual control flange plate grip slipper to convenient regulation facilitates the use.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the exhaust pipe clamping mechanism and the flange plate clamping mechanism are arranged to respectively clamp the exhaust pipe and the flange plate, and the outer side wall of one end of the exhaust pipe is in contact with the inner side wall of the opening of the flange plate, so that the accuracy of the exhaust pipe and the flange plate in contact is ensured, the stability of the exhaust pipe and the flange plate in welding is ensured, the welding quality is improved, the welding quality is prevented from being influenced by movement of the exhaust pipe and the flange plate in welding, and the working efficiency is improved;
(2) the hanger clamping mechanism is arranged to clamp the hanger on the exhaust pipeline, so that the hanger clamping mechanism is suitable for clamping the exhaust pipeline fixed with the hanger, the application range of a welding clamp is expanded, and the use is convenient;
(3) through setting up actuating mechanism, the drive flange plate grip slipper removes, through the position that changes the flange plate grip slipper, the centre gripping of the exhaust duct of adaptable different length has further improved welding jig's application range.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural view of the fixing member for showing the present invention;
fig. 4 is a schematic structural diagram of a first pressing assembly in the present invention;
fig. 5 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 6 is a schematic structural view of an exhaust duct according to the present invention;
fig. 7 is a schematic view of the working state of the hanger of the present invention;
fig. 8 is a schematic structural view of a third embodiment of the present invention;
fig. 9 is a schematic structural diagram of the driving mechanism of the present invention.
Reference numerals: 1. a base; 2. an exhaust pipe clamping mechanism; 21. an exhaust pipe clamping seat; 22. a clamping groove; 23. a first hold-down assembly; 231. a first base; 232. a first press handle; 233. a first holding block; 234. connecting blocks; 24. placing the blocks; 25. a conditioning pad; 26. a limiting block; 3. a flange clamping mechanism; 31. a flange plate clamping seat; 32. a clamping assembly; 321. a clamping jaw; 322. a pushing mechanism; 324. a support member; 3241. a support plate; 3242. a guide bar; 325. a groove; 326. a through groove; 33. a slide rail; 4. a fixing member; 5. a hanger clamping mechanism; 51. fixing a column; 52. a second hold-down assembly; 521. a second press handle; 522. a second pressure holding block; 53. a hanger clamp groove; 6. a drive mechanism; 61. a fixed seat; 62. a third pressing handle; 63. a connecting assembly; 631. a connecting bond; 632. a connecting rod; 633. a guide block; 634. a nut; 64. a clamping seat; 7. a hanger; 8. an exhaust duct; 9. a counterweight plate.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.
Example one
As shown in fig. 1 and 3, an exhaust pipe welding jig for welding an exhaust pipe 8 as shown in fig. 6 mainly includes a base 1, an exhaust pipe clamping mechanism 2, and a flange plate clamping mechanism 3. The exhaust pipe clamping mechanism 2 is arranged on the upper surface of the base 1 and used for clamping and fixing the exhaust pipeline 8, and the flange plate clamping mechanism 3 is arranged on the upper surface of the base 1 and used for clamping and fixing the flange plate.
The flange plate clamping mechanism 3 comprises a flange plate clamping seat 31 detachably fixed on the base 1 through bolts, and the flange plate clamping seat 31 is integrally L-shaped and perpendicular to the base 1. Exhaust pipe fixture 2 includes that at least one can dismantle through bolted connection is fixed in exhaust pipe grip slipper 21 on the base 1, exhaust pipe grip slipper 21 sets up to whole rectangular platelike structure, and with flange dish grip slipper 31 parallel arrangement.
Preferably, in order to enable the exhaust pipe clamping seats 21 to be lapped more stably, the number of the exhaust pipe clamping seats 21 is two, and the two exhaust pipe clamping seats 21 are sequentially arranged along the length direction of the exhaust pipeline 8, as shown in fig. 1, and the two exhaust pipe clamping seats 21 are located on the same side of the flange clamping seat 31.
As shown in fig. 3, a fixing member 4 for fixing the flange and the exhaust pipe 8 is provided on the side of the flange holder 31 facing the exhaust pipe holding mechanism 2. When the flange plate and the exhaust pipeline 8 are welded, the exhaust pipeline 8 is integrally clamped by the exhaust pipe clamping mechanism 2, the flange plate is integrally fixed with one end of the exhaust pipeline 8 by the flange plate clamping mechanism 3 and the fixing piece 4, and the welding stability of the flange plate and the exhaust pipeline is ensured, so that the welding quality is improved.
The exhaust pipe clamping mechanism 2 and the flange plate clamping mechanism 3 are preferably in bolt connection with the base 1 in a connection mode, and the exhaust pipe clamping mechanism 2 and the flange plate clamping mechanism 3 are convenient to detach and replace.
As shown in fig. 3, the fixing member 4 includes a cylindrical structure detachably disposed on the flange holder 31, and in this embodiment, the exhaust pipe 8 is set to have a circular cross-section, so that the cylindrical structure is disposed in a cylindrical shape. The cross-section of the cylindrical structure perpendicular to its length is sized to fit the shape of the end of the exhaust duct 8. During welding, the flange plate is sleeved on the outer side wall of the exhaust pipeline 8, and the flange plate and the exhaust pipeline are fixed together by the cylindrical structure. Therefore, the end part of the exhaust pipeline 8 can be fixed with the flange plate together, so that the two can be welded conveniently, and the stability of the two in welding is improved further.
As described with reference to fig. 1 and 3, a clamping groove 22 for clamping the exhaust pipe 8 is formed in one end of the exhaust pipe clamping seat 21 away from the base 1, and a first pressing component 23 for pressing the exhaust pipe 8 placed in the clamping groove 22 is disposed at a notch of the clamping groove 22.
As shown in fig. 4, the first pressing assembly 23 includes a first base 231, a first pressing handle 232 and a first pressing block 233, the first base 231 is disposed on one side of the exhaust pipe clamping seat 21, the first pressing handle 232 is in transmission connection with the first pressing block 233, and both of them are rotatably connected to the first base 231. The first pressing handle 232 is preferably connected to the first pressing block 233 in a manner that the first pressing handle 232 is rotatably connected to the first pressing block 233 through a connecting block 234.
When the exhaust pipe 8 is pressed, the first pressing handle 232 is pressed upwards, and the end of the connecting block 234 close to the first pressing handle 232 is driven to move upwards along with the first pressing handle 232, so that the end of the connecting block 234 close to the first pressing block 233 moves downwards, and the pressing of the first pressing block 233 on the exhaust pipe 8 is realized.
When the exhaust pipe 8 is released, the first pressing handle 232 is pressed downwards, and the end of the connecting block 234 close to the first pressing handle 232 is driven to move downwards, so that the end of the connecting block 234 close to the first pressing block 233 moves upwards, and the first pressing block 233 is separated from the exhaust pipe 8.
The clamping groove 22 and the first pressing assembly 23 further limit the rotation of the exhaust pipeline 8 in the axial direction, so that the stability of the exhaust pipeline 8 during clamping is further improved, and the welding quality is improved.
As shown in fig. 1, a plurality of placing blocks 24 are fixed on the inner side wall of the holding groove 22; a regulating pad 25 for supporting the exhaust duct 8 is screwed to the placing block 24 along the length direction of the inner side wall of the holding groove 22. The adjusting pad 25 is preferably a circular arc shaped rubber pad. The adaptability of the exhaust pipeline 8 in the clamping process can be improved by utilizing the adjusting pad 25, the stability of the exhaust pipeline 8 in the clamping process is improved, and meanwhile, the adjusting pad 25 is convenient to replace, so that the clamping of the exhaust pipelines 8 with different diameters is met, and the application range is enlarged.
Referring to fig. 1 and 4, a limiting block 26 for limiting the movement of the exhaust pipe 8 along the length direction thereof during welding is disposed on the exhaust pipe clamping seat 21 away from the flange clamping mechanism 3. The limiting block 26 is detachably mounted on one side of the exhaust pipe clamping seat 21 far away from the flange plate clamping seat 31 through bolts and is positioned on the outer side wall of the notch of the clamping groove 22. The stopper 26 can restrict the movement of the exhaust duct 8 in the length direction, thereby further improving the stability when the exhaust duct 8 is fixed.
Referring to fig. 1 and 2, a flange clamping seat 31 is provided with a clamping assembly 32 for clamping a flange, and the clamping assembly 32 includes: the clamping jaw 321 is arranged on the flange plate clamping seat 31, and the clamping jaw 321 is used for clamping and fixing the flange plate. The pushing mechanism 322 is detachably connected with the clamping jaw 321; the pushing mechanism 322 drives the clamping jaw 321 to clamp and separate the clamping jaw 321 from the flange plate.
The pushing mechanism 322 may preferably be an air cylinder, and the pushing mechanism 322 is rotatably connected to the clamping jaw 321 through a rotating shaft.
When clamping jaw 321 needs to clamp the flange plate, the telescopic rod of the cylinder extends out to contact with flange plate clamping seat 31, the cylinder is pushed to move towards the direction far away from flange plate clamping seat 31, and the clamping jaw 321 is driven to move simultaneously, so that one end of the clamping jaw 321 is moved to contact with the flange plate and clamp the flange plate.
When the clamping jaw 321 is separated from the flange plate, the telescopic rod of the cylinder contracts, the cylinder moves towards the direction close to the flange plate clamping seat 31, and meanwhile, the clamping jaw 321 is driven to move, so that the clamping jaw 321 is separated from the flange plate.
Utilize pushing mechanism 322 to drive clamping jaw 321 fixed with the ring flange, convenient and fast has improved work efficiency, utilizes clamping component 32 to fix the both ends of ring flange simultaneously to prevent that ring flange self from taking place the axial and rotating, guaranteed the stability when ring flange welding, thereby further improve welding quality.
As shown in fig. 1, in order to improve the stability and accuracy of the clamping jaws 321 when clamping the flange, the number of the clamping jaws 321 is two, and the two clamping jaws 321 are symmetrically arranged on two sides of the flange clamping seat 31 perpendicular to the length direction of the exhaust pipe 8.
The clamping jaw 321 is a U-shaped structure with rounded corners at the outer side of one end close to the direction of the flange. Like this, can prevent that clamping jaw 321 from taking place to collide with flange plate grip slipper 31 in the motion process, play the effect of protection to clamping jaw 321 and flange plate grip slipper 31, prolong the life of the two, the removal of the clamping jaw 321 of being convenient for simultaneously has further improved work efficiency.
As shown in fig. 2, a support 324 is provided on the flange holding seat 31 on the side opposite to the pushing mechanism 322. The supporting member 324 includes a supporting plate 3241 detachably disposed on two sides of the flange plate holder 31, a groove 325 is disposed on a sidewall of the supporting plate 3241, and the clamping jaw 321 passes through the groove 325 and is overlapped in the groove 325. The arrangement of the supporting piece 324 can enhance the stability of the clamping jaw 321 in the moving process, the arrangement of the groove 325 has a limiting effect on the clamping jaw 321, the situation that the clamping jaw 321 deviates in the moving process is prevented, and the accuracy of the clamping jaw 321 in clamping the flange plate is ensured.
A through groove 326 is formed in the clamping jaw 321, and a guide rod 3242 penetrating through the through groove 326 is fixed inside the groove 325 along the vertical direction of the clamping jaw 321. When the pushing mechanism 322 drives the clamping jaw 321 to separate from the flange, the clamping jaw 321 moves and the guide rod 3242 is positioned on the end of the through groove 326 far away from the clamping jaw 321 for clamping the flange; when the pushing mechanism 322 drives the jaws 321 to grip the flange, the jaws 321 move and the guide rod 3242 is positioned on the through slot 326 near the end of the jaws 321 that grips the flange. Therefore, the clamping jaw 321 in the moving process can be guided, the clamping accuracy of the clamping jaw 321 is improved, and the stability of the clamping jaw 321 for clamping the flange plate is further improved.
As shown in fig. 1, the flange holder 31 is formed in an L-shaped configuration, and the flange holder 31 is provided with a weight plate 9 for enhancing the stability of the flange holder 31. Therefore, the stability of the flange plate clamping seat 31 is improved, and the overall performance of the welding clamp is improved.
Example two
As shown in fig. 5, the exhaust pipe welding jig is different from the second embodiment in that: the number of exhaust pipe retaining seats 21 is two and both are provided along the length direction of the exhaust duct 8. And a hanging bracket clamping mechanism 5 is arranged at one side of an exhaust pipe clamping seat 21 close to the flange plate clamping mechanism 3. Utilize gallows fixture 5 can fix the gallows 7 of fixing on the exhaust duct 8, adapt to the exhaust duct 8's of different forms fixed more, improve anchor clamps's adaptability, make things convenient for the centre gripping, stability when guaranteeing the centre gripping.
The surface of the fixing column 51 far away from the base 1 is provided with a hanger clamping groove 53 for fixing the hanger 7. Wherein, the hanger neck 53 is preferably a cross-shaped structure.
In operation, as shown in fig. 7, the hanger 7 is engaged with the inside of the hanger engaging groove 53.
As shown in fig. 5, the hanger clamping mechanism 5 includes a fixing column 51, the fixing column 51 is fixed on the surface of the base 1 far away from the base 1, and a second pressing assembly 52 for fixing the hanger 7 is disposed on the fixing column 51. The second pressing component 52 is disposed at one end of the fixing column 51 far away from the base 1, the second pressing component 52 includes a second pressing handle 521 and a second pressing block 522, the second pressing handle 521 is in transmission connection with the second pressing block 522, and both are rotatably connected to the fixing column 51.
The structure and operation of the second pressing assembly 52 are similar to those of the first pressing assembly 23, and are not described in detail herein. The top end of the hanger 7 is fixed by the second hold-down assembly 52, so that the stability of the hanger 7 is ensured, and the stability of the exhaust duct 8 is further ensured.
EXAMPLE III
As shown in fig. 8, the exhaust pipe welding jig differs from the second embodiment in that: the flange clamping seat 31 is connected with the base 1 in a sliding way through a slide rail 33, and a driving mechanism 6 for driving the flange clamping mechanism 3 is arranged on the flange clamping seat 31.
The driving mechanism 6 is located on the upper surface of the base 1, away from one side of the flange clamping mechanism 3, away from the exhaust pipe clamping mechanism 2, and is fixedly arranged perpendicular to the length direction of the exhaust pipeline 8. By using the mode, the driving mechanism 6 can drive the flange clamping mechanism 3 to move on the base 1 along the length direction of the exhaust pipeline 8, so that the whole welding fixture can adapt to the fixation of the exhaust pipelines 8 with different lengths, and the application range of the welding fixture is enlarged.
As shown in fig. 9, the driving mechanism 6 includes a fixed seat 61, a third pressing handle 62 and a connecting assembly 63, the fixed seat 61 is fixed on the upper surface of the base 1, the third pressing handle 62 is connected with the flange holder 31 through the connecting assembly 63, and the third pressing handle 62 is rotatably connected with the connecting assembly 63.
The connecting assembly 63 includes a connecting key 631 and a connecting rod 632, and the third press handle 62 is rotatably connected to the connecting rod 632 through the connecting key 631.
When the length of the exhaust pipe 8 is increased, the third pressing handle 62 is pressed upwards, and one end of the connecting key 631, which is close to the third pressing handle 62, moves upwards, so that one end of the connecting key 631, which is far away from the third pressing handle 62, moves towards the direction far away from the exhaust pipe clamping mechanism 2, and the connecting rod 632 is driven to move towards the direction far away from the exhaust pipe clamping mechanism 2, and the flange plate clamping mechanism 3 is driven to move towards the direction far away from the exhaust pipe clamping mechanism 2, so that the exhaust pipe clamping mechanism is suitable for the exhaust pipe 8 with the increased length;
when the length of exhaust duct 8 reduces, the third of pushing down presses handle 62, and the one end that connecting key 631 is close to the third and presses handle 62 moves down for the one end that connecting key 631 is kept away from the third and presses handle 62 moves to the direction that is close to exhaust pipe fixture 2, thereby drives connecting rod 632 and moves to the direction that is close to exhaust pipe fixture 2, and then drives ring flange fixture 3 and moves to the direction that is close to exhaust pipe fixture 2, and is applicable in the exhaust duct 8 that length reduces.
Like this for whole welding jig can be applicable to the centre gripping of the exhaust duct 8 of different length, has enlarged welding jig's application scope.
Meanwhile, in order to ensure that the flange clamping seat 31 can move along the length direction of the base 1 and prevent the flange clamping seat 31 from deflecting, as shown in fig. 9, a guide block 633 for guiding the connecting rod 632 is arranged at one end of the fixing seat 61 close to the flange clamping seat 31, and the connecting rod 632 penetrates through the guide block 633 and is parallel to the base 1. Therefore, the stability of the exhaust pipeline 8 and the flange plate in butt joint during clamping can be ensured, and the welding quality is ensured.
As shown in fig. 9, a nut 634 is screwed on an outer side wall of one end of the connecting rod 632, which is close to the flange plate holder 31, a clamping seat 64 for limiting the movement of the connecting rod 632 along the length direction of the exhaust duct 8 is disposed on the flange plate holder 31, and the nut 634 is disposed on a side of the clamping seat 64, which is far away from the flange plate holder 31. Like this, through screwing up nut 634, can not only improve the stability of being connected between actuating mechanism 6 and the ring flange grip slipper 31, guarantee the stability when ring flange grip slipper 31 removes, through not hard up nut 634, be convenient for dismantle the change with actuating mechanism 6 moreover, facilitate the use.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An exhaust pipe welding jig characterized by comprising:
a base (1);
the exhaust pipe clamping mechanism (2) is arranged on the upper surface of the base (1) and used for clamping and fixing the exhaust pipeline (8);
the flange plate clamping mechanism (3) is arranged on the upper surface of the base (1) and used for clamping a fixed flange plate;
when the exhaust pipe clamping mechanism (2) fixes the exhaust pipe (8), one end of the exhaust pipe (8) is coaxial with the flange plate, and the end face or the outer side wall of the exhaust pipe (8) close to the flange plate is connected with the surface of the flange plate or the inner side wall of the opening.
2. The exhaust pipe welding jig according to claim 1, wherein the exhaust pipe clamping mechanism (2) comprises at least one exhaust pipe clamping seat (21), and at least one clamping groove (22) for clamping the exhaust pipe (8) is formed in the exhaust pipe clamping seat (21);
the clamping groove (22) is formed in one end, far away from the base (1), of the exhaust pipe clamping seat (21);
a first pressing component (23) used for pressing the exhaust pipeline (8) is arranged at the notch of the clamping groove (22);
the first pressing assembly (23) comprises a first base (231), a first pressing handle (232) and a first pressing block (233), the first base (231) is arranged on one side of the exhaust pipe clamping seat (21), the first pressing handle (232) is in transmission connection with the first pressing block (233), and the first pressing handle and the first pressing block (233) are both rotatably connected to the first base (231);
when the first pressing handle (232) moves to the first position, the first pressing block (233) presses the exhaust pipeline (8) placed in the clamping groove (22);
when the first pressing handle (232) moves to the second position, the first pressing block (233) is separated from the exhaust pipe (8) placed in the clamping groove (22).
3. The exhaust pipe welding jig according to claim 2, wherein a plurality of placing blocks (24) are fixed to an inner side wall of the holding groove (22);
the placing block (24) is in threaded connection with an adjusting pad (25) used for supporting the exhaust pipeline (8) along the length direction of the inner side wall of the clamping groove (22).
4. The exhaust pipe welding jig according to claim 3, wherein the number of the exhaust pipe clamping seats (21) is two and both are provided along the length direction of the exhaust duct (8);
and a limiting block (26) used for limiting the exhaust pipeline (8) to move along the length direction during welding is arranged on an exhaust pipe clamping seat (21) far away from the flange plate clamping mechanism (3).
5. The exhaust pipe welding jig according to claim 2, wherein a hanger clamping mechanism (5) is provided on a side of an exhaust pipe clamping seat (21) adjacent to the flange clamping mechanism (3);
the hanger clamping mechanism (5) is fixed on the upper surface of the base (1), and the hanger clamping mechanism (5) is used for fixing a hanger (7) fixed on the exhaust pipeline (8);
the hanger clamping mechanism (5) comprises a fixing column (51), the fixing column (51) is fixed on the surface, far away from the base (1), of the base (1), a second pressing assembly (52) used for fixing the hanger (7) is arranged on the fixing column (51), and a hanger clamping groove (53) used for fixing the hanger (7) is formed in the surface, far away from the base (1), of the fixing column (51);
the second pressing assembly (52) is arranged at one end, far away from the base (1), of the fixed column (51), the second pressing assembly (52) comprises a second pressing handle (521) and a second pressing block (522), the second pressing handle (521) and the second pressing block (522) are in transmission connection, and the second pressing handle (521) and the second pressing block (522) are both rotationally connected to the fixed column (51);
when the second pressing handle (521) moves to the first position, the second pressing and holding block (522) presses the hanger (7) placed in the hanger clamping groove (53);
when the second pressing handle (521) moves to the second position, the second pressing block (522) is separated from the hanger (7) placed in the hanger clamping groove (53).
6. The exhaust pipe welding jig according to claim 5, wherein the flange clamping mechanism (3) comprises a flange clamping seat (31) detachably fixed on the base (1), and a fixing member (4) for fixing the flange and the exhaust pipe (8) is arranged on one side of the flange clamping seat (31) facing the exhaust pipe clamping mechanism (2);
the fixing piece (4) comprises a cylindrical structure which is detachably arranged on the flange plate clamping seat (31), and the size of the section of the cylindrical structure, which is perpendicular to the length direction, is matched with the shape and the size of the end part of the exhaust pipeline (8);
when the exhaust pipeline (8) is in a fixed state, the inner side wall of the end part of the exhaust pipeline (8) is sleeved with the outer side wall of the cylindrical structure.
7. The exhaust pipe welding jig according to claim 6, wherein a clamping assembly (32) for clamping the flange is provided on the flange holder (31), and the clamping assembly (32) comprises:
the clamping jaw (321), the clamping jaw (321) is arranged on the flange plate clamping seat (31), and the clamping jaw (321) is used for clamping and fixing the flange plate;
the number of the clamping jaws (321) is two, the two clamping jaws (321) are symmetrically arranged on two side edges, perpendicular to the length direction of the exhaust pipeline (8), of the flange plate clamping seat (31), and the clamping jaws (321) are of a U-shaped structure, wherein round corners are formed at the outer side corners of one end close to the flange plate direction;
the pushing mechanism (322) is detachably connected with the clamping jaw (321);
the pushing mechanism (322) drives the clamping jaw (321) to enable the clamping jaw (321) to clamp and separate from the flange plate;
push mechanism (322) set up in keep away from on ring flange grip slipper (31) one side of blast pipe grip slipper (21), push mechanism (322) can set up to the cylinder.
8. The exhaust pipe welding jig according to claim 7, wherein a support member (324) is provided on a side of the flange holder (31) opposite to the urging mechanism (322);
wherein the support (324) is used for supporting the clamping jaw (321);
the supporting piece (324) comprises supporting plates (3241) which are detachably arranged on two sides of the flange plate clamping seat (31), a groove (325) is formed in the side wall of each supporting plate (3241), and the clamping jaw (321) penetrates through the groove (325) and is lapped in the groove (325);
a through groove (326) is formed in the clamping jaw (321), and a guide rod (3242) penetrating through the through groove (326) is fixed in the groove (325) along the vertical direction of the clamping jaw (321);
the guide rod (3242) is used for guiding the movement of the clamping jaw (321).
9. The exhaust pipe welding jig of claim 8, wherein the flange clamping seat (31) is slidably connected with the base (1) through a slide rail (33), and a driving mechanism (6) for driving the flange clamping mechanism (3) is arranged on one side of the base (1) away from the exhaust pipe clamping mechanism (2) of the flange clamping seat (31);
the driving mechanism (6) is located at a position, far away from the base (1), of the flange plate clamping mechanism (3) far away from the upper surface of one side of the exhaust pipe clamping mechanism (2) and perpendicular to the length direction of the exhaust pipeline (8) in a fixed mode.
10. The exhaust pipe welding jig of claim 9, wherein the driving mechanism (6) comprises a fixed seat (61), a third pressing handle (62) and a connecting assembly (63), the fixed seat (61) is fixed on the upper surface of the base (1), the third pressing handle (62) is connected with the flange clamping seat (31) through the connecting assembly (63), and the third pressing handle (62) is rotatably connected with the connecting assembly (63);
when the third pressing handle (62) is located at the first position, the driving mechanism (6) drives the flange plate clamping seat (31) to move to one end, close to the exhaust pipe clamping mechanism (2), of the sliding rail (33);
when the third pressing handle (62) is located at the second position, the driving mechanism (6) drives the flange plate clamping seat (31) to move to one end, away from the exhaust pipe clamping mechanism (2), of the sliding rail (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920394965.1U CN209811610U (en) | 2019-03-26 | 2019-03-26 | Welding fixture for exhaust pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920394965.1U CN209811610U (en) | 2019-03-26 | 2019-03-26 | Welding fixture for exhaust pipe |
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| Publication Number | Publication Date |
|---|---|
| CN209811610U true CN209811610U (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920394965.1U Active CN209811610U (en) | 2019-03-26 | 2019-03-26 | Welding fixture for exhaust pipe |
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| CN (1) | CN209811610U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168279A (en) * | 2019-12-31 | 2020-05-19 | 东风汽车股份有限公司 | Horizontal silencer welding device |
| CN112192139A (en) * | 2020-09-16 | 2021-01-08 | 阜阳市鼎铭汽车配件制造有限公司 | Welding fixture for welding automobile fender supporting rod |
| CN114102041A (en) * | 2021-10-19 | 2022-03-01 | 东风汽车股份有限公司 | Lateral adjustable limiting and fastening structure |
-
2019
- 2019-03-26 CN CN201920394965.1U patent/CN209811610U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168279A (en) * | 2019-12-31 | 2020-05-19 | 东风汽车股份有限公司 | Horizontal silencer welding device |
| CN112192139A (en) * | 2020-09-16 | 2021-01-08 | 阜阳市鼎铭汽车配件制造有限公司 | Welding fixture for welding automobile fender supporting rod |
| CN114102041A (en) * | 2021-10-19 | 2022-03-01 | 东风汽车股份有限公司 | Lateral adjustable limiting and fastening structure |
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