CN117047380B - Exhaust pipe welding positioning device and working method - Google Patents
Exhaust pipe welding positioning device and working method Download PDFInfo
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- CN117047380B CN117047380B CN202311222122.0A CN202311222122A CN117047380B CN 117047380 B CN117047380 B CN 117047380B CN 202311222122 A CN202311222122 A CN 202311222122A CN 117047380 B CN117047380 B CN 117047380B
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- 238000003466 welding Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 13
- 210000001503 joint Anatomy 0.000 claims abstract description 5
- 239000000758 substrate Substances 0.000 claims description 18
- 238000010586 diagram Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/0426—Fixtures for other work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses an exhaust pipe welding positioning device and a working method, wherein the exhaust pipe welding positioning device comprises: the base is L-shaped and provided with first sliding grooves arranged on two sides; the four corners of the movable seat are fixedly provided with rollers sliding in the first sliding grooves, the movable seat comprises a first fixing component, a second fixing component and a positioning component, the positioning component comprises a liftable supporting piece and a shell fixed on the supporting piece, an extensible positioning head is arranged in the shell, and the positioning head is matched with and can extend into a welding part of the exhaust pipe part; in the first working state, the movable seat is in butt joint with the positioning head, and the exhaust pipe part fixed on the first fixing assembly and the exhaust pipe part fixed on the second fixing assembly are both in butt joint with the positioning head; when the movable seat is changed from the first working state to the second working state, the positioning head withdraws from the exhaust pipe part and the supporting piece descends, and the second fixed assembly moves to the first fixed assembly until the exhaust pipe part contacts with each other.
Description
Technical Field
The invention belongs to the technical field of welding operation, and particularly relates to an exhaust pipe welding positioning device and a working method.
Background
The exhaust pipe is a part of the exhaust system of the engine, and is formed by welding and fixing various parts in production, and for a large-displacement engine, the exhaust system with a double exhaust pipeline design is often used to meet the requirement of large displacement, such as a double exhaust pipeline shown in application number 201921615850.7.
Because the whole trend of modern industrial development is intellectualization and automation, the double exhaust pipelines need to realize the intellectualization and automation welding during welding, and the quick positioning and fixing of each part are the problems which need to be solved at first, especially how to realize the quick positioning and the quick fixing of the welding position between the left and right branch pipelines and the silencer in the middle after being singly welded and formed.
Disclosure of Invention
The application provides an exhaust pipe welding positioning device and a working method aiming at the problem that how to quickly position and quickly fix a muffler in the middle of a left branch pipeline and a right branch pipeline of the structure designed by the double exhaust pipelines during welding forming, and the specific technical scheme is as follows:
this application first proposes blast pipe welding positioner, includes:
the base is L-shaped and provided with first sliding grooves arranged on two sides;
the movable seat comprises a first fixed component, a second fixed component and a positioning component, wherein the first fixed component is used for fixing an exhaust pipe component, the positioning component is arranged between the first fixed component and the second fixed component, the positioning component comprises a liftable supporting piece and a shell fixed on the supporting piece, an extensible positioning head is arranged in the shell, and the positioning head is matched with and can extend into a welding part of the exhaust pipe component;
the movable seat is provided with a first working state and a second working state on the base, and in the first working state, the exhaust pipe part fixed on the first fixed assembly and the exhaust pipe part fixed on the second fixed assembly are both in butt joint with the positioning head;
when the movable seat is changed from the first working state to the second working state, the positioning head exits the exhaust pipe part and the supporting piece descends, and the second fixed assembly moves to the first fixed assembly until the exhaust pipe part contacts with each other.
Further, a bracket is arranged on the back surface of the base.
Further, the movable seat further comprises a bottom plate, the first fixing component, the positioning component and the second fixing component are sequentially arranged on the bottom plate, the first fixing component is fixedly connected with the bottom plate, and the positioning component and the second fixing component can be arranged on the bottom plate in a sliding manner far away from or close to the first fixing component.
Further, the first fixing assembly comprises a first base plate, a connecting frame for connecting the first base plate and the bottom plate, and air cylinders symmetrically arranged and fixed on the first base plate.
Further, the positioning assembly includes:
the second base plate is arranged on the bottom plate in a sliding manner;
a support member fixed on the second substrate;
a housing fixed to the support;
the positioning heads are oppositely arranged and can be slidably arranged in the shell;
the two ends of the first spring are abutted against the positioning head to apply elastic acting force to the positioning head, so that the positioning head has a tendency of popping up the shell;
the balancing weight is slidably arranged inside the supporting piece and connected with the positioning head, and the positioning head is pulled to retract into the shell when the balancing weight slides towards the second substrate.
Further, the support includes:
the first telescopic section is fixedly connected with the shell;
the second telescopic section is fixedly connected with the second substrate, and the side wall of the second telescopic section is provided with an opening;
the limiting pin is movably arranged in the side wall hole of the second telescopic section, and the head part of the limiting pin is provided with an inclined plane;
one end of the third spring is connected with the limiting pin, the other end of the third spring is connected with the second telescopic section, and the head of the limiting pin penetrates into the second telescopic section and abuts against the first telescopic section in a normal state;
when the balancing weight slides to the second substrate to contact with the inclined plane of the head part of the limiting pin, the limiting pin is pressed out of the second telescopic section, and the inclined plane of the first telescopic section, which contacts with the head part of the limiting pin, slides to the second substrate along with the balancing weight.
Further, the second fixing assembly includes:
the third base plate is arranged on the bottom plate in a sliding manner, and a second sliding groove is formed in the third base plate;
the adjusting frame comprises a fourth base plate, a roller arranged at the bottom of the fourth base plate and movably connected in the second sliding groove, two side plates with U-shaped cross sections arranged on the fourth base plate at intervals, and a connecting seat arranged between the two side plates in a sliding manner, wherein the top of the connecting seat is provided with a groove matched with an exhaust pipe part.
Further, the side of connecting seat is provided with the cavity, the inside magnetic path that is provided with of connecting seat, the lateral wall of connecting seat is provided with the resistance piece, link to each other through the chevron connecting piece between resistance piece and the magnetic path, be provided with spacing post in the cavity, the chevron connecting piece is located between the inner wall of spacing post and cavity, in the recess is placed in to the blast pipe part, the magnetic path adsorbs the blast pipe part and removes and pull the resistance piece to compress tightly the laminating on the curb plate to the recess.
Further, a motor is arranged at the top of the base, and a rotating shaft of the motor is connected with the movable seat through a traction rope.
In addition, the application also provides a working method of the exhaust pipe welding positioning device, which comprises the following steps:
step one, adjusting a movable seat to a first working state;
fixing the exhaust pipe part on the first fixing assembly, and enabling the welding part to face the second fixing assembly;
step three, adjusting the positioning head to extend out and extend into the welding part of the exhaust pipe part;
step four, placing the exhaust pipe part in the groove, so that the positioning head extends into the welding position of the exhaust pipe part;
and fifthly, adjusting the movable seat to a second working state, and performing welding operation.
The beneficial effects of the invention are as follows:
(1) The welding position alignment positioning of the exhaust pipe part to be welded is ensured, the positioning is realized through the coaxially arranged positioning head matched with the hole at the welding position, and the rapid and accurate positioning at the welding position can be realized through the insertion of the positioning head;
(2) The welding device is suitable for different welding requirements, the adjusting frame is provided with three-axis adjusting degrees of freedom, and the relative positions of exhaust pipe parts to be welded can be adjusted, so that the applicability of the welding device can be greatly improved.
Drawings
FIG. 1 is a schematic view showing the structure of an exhaust pipe welding positioning device in the embodiment;
FIG. 2 is a schematic view showing the structure of a base in the embodiment;
FIG. 3 is a schematic view showing the structure of the movable seat in the embodiment;
FIG. 4 is a schematic view showing the structure of a first fixing member in the embodiment;
FIG. 5 is a schematic view showing the structure of a positioning assembly in the embodiment;
FIG. 6 is a schematic view showing the internal structure of the case in the embodiment;
FIG. 7 is a schematic view showing the structure of a second fixing member in the embodiment;
FIG. 8 is a schematic view showing the structure of an adjusting bracket in the embodiment;
FIG. 9 shows a partial enlarged view of FIG. 8 at A in an embodiment;
FIG. 10 is a schematic view of a support structure in an embodiment;
fig. 11 is a schematic view showing a process state of adjusting the movable seat to the second working state in the embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
Fig. 1 is a schematic structural view of an exhaust pipe welding and positioning device, in which the exhaust pipe welding and positioning device is in a first working state, and in combination with fig. 1, the exhaust pipe welding and positioning device includes a base 100 and a movable seat 200, and the movable seat 200 can be moved on the base 100 to change positions so as to be in a second working state and a first working state as shown in fig. 1, wherein the movable seat 200 is vertically arranged in the first working state, and the movable seat 200 is horizontally arranged in the second working state; the first part 31 and the second part 32 of the exhaust pipe are fixed on the movable seat 200, the movable seat 200 is used for assisting in quickly positioning the welding position of the first part 31 and the second part 32, and the movable seat 200 is further used for switching from the first working state to the second working state, so that the first part 31 and the second part 32 are in butt joint.
The first component 31 and the second component 32 in the present embodiment are structures forming a double exhaust pipe, wherein the second component 32 is provided with two, typically a left exhaust pipe and a right exhaust pipe, and the first component 31 may be a muffler or a functional structure simply having a cavity, and is only used for realizing interconnection with the second component 32; in general, the connection between the first component 31 and the second component 32 is circular, that is, two circular holes are formed in the first component 31, the cross section of the connection between the second component 32 and the first component 31 is circular, and the dimension of the connection matches the circular holes in the first component 31, and in this embodiment, the welding positioning device for the exhaust pipe will be described in detail by taking the circular connection as an example.
Fig. 2 shows a schematic structural view of a base 100, the base 100 is in an L shape as a whole, two sides of the base 100 are provided with L-shaped wing plates 110, and the wing plates 110 are formed with L-shaped first sliding grooves 120, and the first sliding grooves 120 may be in a state of penetrating the wing plates 11 as shown in fig. 2 or may be in a non-penetrating state; the mounting feet 130 are arranged at the bottom of the base 100 and used for fixing the whole base 100, the support 140 is additionally arranged on the back of the base 100 and used for supporting the base 100, so that the stability of the base 100 is ensured when the movable seat 200 is in the first working state, and the base 100 is prevented from toppling over.
Fig. 3 shows a schematic structural view of the movable base 200, wherein the movable base 200 includes a base plate 210, and a first fixing member 220, a positioning member 230, and a second fixing member 240 mounted on the base plate 210, wherein: the first fixing assembly 220 is fixedly installed on the base plate 210, and the first fixing assembly 220 is used for fixing the first part 31; the positioning component 230 and the second fixing component 240 are slidably mounted on the bottom plate 210, a sliding rail 260 for sliding the positioning component 230 and the second fixing component 240 is fixed on the bottom plate 210, so that the positioning component 230 and the second fixing component 240 can slide along the sliding rail 260 to change the relative distance between the positioning component 230 and the first fixing component 220, and the second fixing component 240 is used for fixing the second component 32, and positioning and butting at the joint of the first component 31 and the second component 32 are realized by matching with the positioning component 230; in addition, rollers 250 are installed at four corners of the bottom plate 210, the rollers 250 are slidably disposed in the first sliding groove 120, and the first working state and the second working state of the movable seat 200 on the base 100 are switched by matching the rollers 250 with the first sliding groove 120.
Fig. 4 shows a schematic structural diagram of a first fixing assembly 220, where the first fixing assembly 220 includes a first base plate 221, a connecting frame 222, and an air cylinder 223, the first base plate 221 is fixedly installed on a bottom plate 210 through the connecting frame 222, the air cylinder 223 is symmetrically arranged and fixed on the first base plate 221, a pressing plate 224 is fixed on a telescopic rod of the air cylinder 223, when the air cylinders 223 symmetrically arranged on two sides work simultaneously, a first part 31 can be clamped and fixed between the two air cylinders 223, and the first part 31 shown in fig. 4 has two holes matched with a second part 32, that is, the second part 32 needs to seal the holes on the first part 31 through welding.
Fig. 5 shows a schematic structural diagram of a positioning assembly 230, where the positioning assembly 230 includes a second substrate 231, a supporting member 232, a housing 233, a positioning head 234, a first slider 235 and a counterweight 236, where the first slider 235 is fixedly installed at the bottom of the substrate 231, and slidably cooperates with a slide rail 260 to realize the overall position adjustment of the positioning assembly 230, one end of the supporting member 232 is fixed on the substrate 231, the other end is fixedly connected with the housing 233, the positioning head 234 is installed in the housing 233, and the positioning head 234 can be ejected or retracted into the housing 233 by the housing 233; in addition, a cavity for accommodating the balancing weight 236 and allowing the balancing weight 236 to slide along the length direction of the supporting member 232 is formed in the middle of the supporting member 232, and the balancing weight 236 is connected with the positioning head 234, so that the position of the balancing weight 236 in the supporting member 232 can control the state of the positioning head 234 in which the positioning head 234 is ejected or retracted.
Fig. 6 is a schematic view showing the internal structure of the housing 233, and one end of the positioning head 234 located inside the housing 233 is turned outwards to form a limiting step, so as to limit the positioning head 234 to be completely ejected from the housing 233; the positioning heads 234 are of hollow structures, two groups of positioning heads 234 are arranged on the shell 233 for the two parts II 32, each group of positioning heads 234 are arranged two, the two positioning heads 234 of each group are arranged oppositely, a first spring 237 is arranged between the positioning heads 234, and elastic acting force is applied to the two positioning heads 234 through the first spring 237, so that the positioning heads 234 always have a pop-up trend; each positioning head 234 is connected to a cable 238, and the other end of the cable 238 is connected to the weight 236 through a hole in the housing 233, so that when the weight 236 moves toward the second substrate 231, the positioning heads 234 are pulled against the first springs 237 to retract into the housing 233.
Fig. 7 shows a schematic structural diagram of a second fixing assembly 240, where the second fixing assembly 240 includes a third base plate 241, a second slider 242 and an adjusting frame 243, the second slider 242 is fixedly installed at the bottom of the third base plate 241 and is slidably matched with the sliding rail 260 to realize the overall position adjustment of the second fixing assembly 240, the third base plate 241 is provided with a second sliding groove 244, and the adjusting frame 243 is integrally installed in the second sliding groove 244 and can slide in the second sliding groove 244 along the extending direction of the second sliding groove 244 to adjust the position; the second component 32 is fixed and positioned with assistance by the adjusting bracket 243.
Fig. 8 shows a schematic structural diagram of an adjusting frame 243, where the adjusting frame 243 includes a fourth base plate 2431, a side plate 2432 and a connecting seat 2433, the side plates 2432 are arranged at two opposite intervals, the cross section of the side plate 2432 is in a U shape, the U-shaped grooves of the two side plates 2432 are opposite to form a region for accommodating the connecting seat 2433, the connecting seat 2433 is slidably arranged between the two side plates 2432, the connecting seat 2433 can be lifted and lowered on the two side plates 2432, a groove 2434 for matching a second component 32 is formed on the top of the connecting seat 2433, and the second component 32 can be placed in the groove 2434; the bottom of the fourth substrate 2431 is provided with a roller 2435, and the roller 2435 is installed in the second chute 244.
Fig. 9 shows a partial enlarged view of the position a in fig. 8, a movable magnetic block 2437 is arranged inside a connecting seat 2433, a resistance block 2438 is arranged on the outer side wall of the connecting seat 2433, the resistance block 2438 is connected with the magnetic block 2437 through a herringbone connecting piece 2441, a cavity for accommodating the resistance block 2438, the herringbone connecting piece 2441 and the magnetic block 2437 is arranged on the side surface of the connecting seat 2433, and a limiting column 2439 for limiting the herringbone connecting piece 2441 is further arranged in the cavity, so that the herringbone connecting piece 2441 is positioned between the limiting column 2439 and the inner wall of the cavity.
In a normal state, two branches of the herringbone connecting piece 2441 are attached to the inner wall of the cavity, when the second component 32 is placed in the groove 2434, as the second component 32 can be adsorbed by the magnet, the magnetic block 2437 can generate adsorption force to the second component 32 to move towards the groove 2434, and the herringbone connecting piece 2441 pulls the resistance block 2438, the herringbone connecting piece 2441 deforms to a certain extent between the limiting post 2439 and the inner wall of the cavity, the resistance block 2438 is pressed and attached to the side plate 2432, and larger resistance is generated between the resistance block 2438 and the side plate 2432 to limit the movement of the connecting seat 2433; with reference to fig. 8, a second spring 2436 is further disposed between the fourth base plate 2431 and the connecting seat 2433, and the second spring 2436 can support the connecting seat 2433 to balance the gravity influence of the connecting seat 2433 and the second component 32 to a certain extent, especially when the movable seat 200 is in a horizontal state as a whole.
Fig. 10 shows a schematic structural diagram of a support member 232, wherein the support member 232 is telescopic at two ends, and comprises a first telescopic section 2331 fixedly connected with a housing 233 and a second telescopic section 2332 fixedly connected with a second substrate 231, the first telescopic section 2331 is slidably arranged in the second telescopic section 2332, a side wall of the second telescopic section 2332 is provided with a hole for accommodating a limiting pin 2333, one end of the limiting pin 2333 extends out of the second telescopic section 2332, a third spring 2334 is arranged on the limiting pin 2333, one end of the third spring 2334 is fixed with the limiting pin 2333, the other end of the third spring 2334 is fixed with the second telescopic section 2332, so that the head of the limiting pin 2333 penetrates into the second telescopic section 2332 when the limiting pin 2332 is not acted by external force, the head of the limiting pin 2333 is abutted against the first telescopic section 2331, and the head of the limiting pin 2333 is provided with an inclined surface, and when a balancing weight 236 in the support member 232 slides towards the second substrate 231 along the length direction of the support member 232, the balancing weight 236 contacts the inclined surface of the head of the limiting pin 2333 and is extruded by the limiting pin 2333 through the inclined surface of the limiting pin 2333 so that one end of the limiting pin 2333 is partially pressed out of the limiting pin 2333, and the first telescopic surface of the limiting pin 2332 is simultaneously contacted with the second inclined surface of the first telescopic section and the head of the limiting pin 2333.
Referring to fig. 1, a motor 150 is installed at the top of the base 100, a traction rope 160 is fixed to a rotation shaft of the motor 150, and the other end of the traction rope 160 is fixed to a bottom plate 210 of the movable base 200.
In fig. 2, the positioning component 230 and the second fixing component 240 are connected by a connecting rod 270, when the positioning component is in the first working state, the distance between the second fixing component 240 and the first fixing component 220 can be ensured, when the positioning component is switched to the second working state, the supporting component 232 slides downwards to expose the upper space, the second fixing component 240 can slide towards the first fixing component 220, and at the moment, the positioning component 230 slides to the lower part of the first fixing component 220.
In fig. 2, a limit knob 280 disposed at the upper end of the adjusting frame 243 is also shown, and the position and state of the adjusting frame 243 can be locked by screwing the limit knob 280.
In addition, the application also provides a working method of the exhaust pipe welding positioning device based on the exhaust pipe welding positioning device, which comprises the following steps:
step one, adjusting the movable seat 200 to a first working state, winding the traction rope 160 by starting the motor 150, so that the movable seat 200 moves under the cooperation of the first chute 120 and the roller 250, keeps a vertical state, and presents the state shown in fig. 1;
step two, fixing the first component 31, attaching the first component 31 to the first substrate 221, starting the air cylinders 223, enabling telescopic rods of the air cylinders 223 on two sides to extend synchronously, clamping and fixing the first component 31, and ensuring that welding holes of the first component 31 face the positioning assembly 230;
step three, preliminary positioning, in the first working state, the supporting member 232 is horizontal, the balancing weight 236 is only supported by the supporting member 232, the balancing weight 236 can be fluctuated towards the direction of the casing 233, the supporting member 232 is stretched, at the moment, the first spring 237 is not limited by traction of the balancing weight 236 and is stretched, and the positioning heads 234 on two sides are ejected out of the casing 233; the positioning head 234 facing the first component 31 corresponds to the welding hole on the first component 3, so that the positioning head 234 just penetrates into the first component 3, and the positioning head 234 facing away from the first component 31 corresponds to the positioning head 234 facing the first component 31;
step four, accurate positioning, in the first working state, placing the second component 32 in the groove 2434, wherein the magnetic block 2437 is arranged in the groove 2434, and the magnetic block 2437 magnetically attracts the second component 32, and the second component 32 is fixed in the groove 2434 by matching with the structure of the groove 2434; the position of the connecting seat 2433 in the side plate 2432, the position of the roller 2435 in the second sliding groove 244 and the integral rotation angle of the adjusting frame 243 are adjusted and changed to adjust the state and the position of the second component 32, so that the opening of the second component 32 is aligned with the positioning head 234 and the positioning head 234 stretches into the second component 32, the positioning alignment of the welding position of the second component 32 and the first component 31 is completed, and the adjusting frame 243 is locked after accurate positioning;
it is emphasized that the following technical purposes are mainly achieved through the steps:
(1) The alignment and positioning of the welding positions of the second component 32 and the first component 31 are ensured, because the traditional welding mode is to manually align the second component 32 with the first component 31 and then to perform spot welding for preliminary fixation, and then to perform full welding by a machine or a manual work, but the alignment deviation of the welding positions of the second component 32 and the first component 31 is difficult to avoid by manual judgment before the spot welding, which can lead to that the second component 32 can partially just cover the holes on the first component 31 but be thin, and the welding quality can be influenced; in the application, the welding position is positioned by the positioning head 234 which is coaxially arranged and matched with the welding position hole, and the rapid and accurate positioning of the welding position can be realized by inserting the positioning head 234;
(2) The welding device is suitable for different welding requirements, namely the welding relation between the second component 32 and the first component 31 is not fixed, some processes require the second component 32 to be level with the first component 31, some processes require the second component 32 to deflect relative to the first component 31 and be used for avoiding some structures on a chassis of the vehicle, so that the fixing of the second component 32 can be realized by arranging the adjusting frame 243, and meanwhile, the adjusting frame 243 has three-axis adjusting freedom degrees, and the position of the second component 32 relative to the first component 31 can be adjusted, so that the applicability of the device can be greatly improved;
step five, adjusting the movable seat 200 to a second working state, and unreeling the traction rope 160 by starting the motor 150, so that the movable seat 200 moves under the cooperation of the first chute 120 and the roller 250 under the gravity, and keeps a horizontal state; as shown in fig. 11, the movable seat 200 is adjusted to the second working state, in which the supporting member 232 is gradually changed from the horizontal state to the vertical state, the weight 236 will also receive an increasing weight component, and slide down along the supporting member 232, and pull the positioning head 234 against the elastic force of the first spring 237 until the positioning head 234 is retracted to the limit position in the housing 233, and only the housing 233 contacts the second and first members 32 and 31; meanwhile, when the balancing weight 236 slides downwards, the inclined surface of the head of the limiting pin 2333 is contacted to press the limiting pin 2333 out, so that the supporting piece 232 is shortened, the shell 233 is driven to move downwards, when the shell 233 is completely separated from the second component 32, and the movable seat 200 is not completely horizontal at this time, the second fixing assembly 240 slides along the sliding rail 260 by gravity until the second component 32 and the first component 31 are contacted, and therefore the welding position of the second component 32 and the first component 31 is also aligned and positioned.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (7)
1. Blast pipe welding positioner, its characterized in that includes:
the base is L-shaped and provided with first sliding grooves arranged on two sides;
the movable seat comprises a first fixed component, a second fixed component and a positioning component, wherein the first fixed component is used for fixing an exhaust pipe component, the positioning component is arranged between the first fixed component and the second fixed component, the positioning component comprises a liftable supporting piece and a shell fixed on the supporting piece, an extensible positioning head is arranged in the shell, and the positioning head is matched with and can extend into a welding part of the exhaust pipe component;
the movable seat is provided with a first working state and a second working state on the base, and in the first working state, the exhaust pipe part fixed on the first fixed assembly and the exhaust pipe part fixed on the second fixed assembly are both in butt joint with the positioning head;
when the movable seat is changed from the first working state to the second working state, the positioning head exits the exhaust pipe part and the supporting piece descends, and the second fixed assembly moves to the first fixed assembly until the exhaust pipe part contacts with each other;
the movable seat further comprises a bottom plate, the first fixing assembly, the positioning assembly and the second fixing assembly are sequentially arranged on the bottom plate, the first fixing assembly is fixedly connected with the bottom plate, and the positioning assembly and the second fixing assembly can be arranged on the bottom plate in a sliding manner far away from or close to the first fixing assembly;
the positioning assembly includes:
the second base plate is arranged on the bottom plate in a sliding manner;
a support member fixed on the second substrate;
a housing fixed to the support;
the positioning heads are oppositely arranged and can be slidably arranged in the shell;
the two ends of the first spring are abutted against the positioning head to apply elastic acting force to the positioning head, so that the positioning head has a tendency of popping up the shell;
the balancing weight is slidably arranged in the supporting piece and connected with the positioning head, and when sliding towards the second substrate, the balancing weight pulls the positioning head to retract into the shell;
the support includes:
the first telescopic section is fixedly connected with the shell;
the second telescopic section is fixedly connected with the second substrate, and the side wall of the second telescopic section is provided with an opening;
the limiting pin is movably arranged in the side wall hole of the second telescopic section, and the head part of the limiting pin is provided with an inclined plane;
one end of the third spring is connected with the limiting pin, the other end of the third spring is connected with the second telescopic section, and the head of the limiting pin penetrates into the second telescopic section and abuts against the first telescopic section in a normal state;
when the balancing weight slides to the second substrate to contact with the inclined plane of the head part of the limiting pin, the limiting pin is pressed out of the second telescopic section, and the inclined plane of the first telescopic section, which contacts with the head part of the limiting pin, slides to the second substrate along with the balancing weight.
2. The exhaust pipe welding positioning apparatus according to claim 1, wherein a bracket is provided on a back surface of the base.
3. The exhaust pipe welding positioning apparatus as defined in claim 1, wherein the first fixing assembly includes a first base plate, a connection frame connecting the first base plate and the bottom plate, and cylinders symmetrically arranged and fixed on the first base plate.
4. The exhaust pipe welding positioning apparatus according to claim 1, wherein the second fixing assembly includes:
the third base plate is arranged on the bottom plate in a sliding manner, and a second sliding groove is formed in the third base plate;
the adjusting frame comprises a fourth base plate, a roller arranged at the bottom of the fourth base plate and movably connected in the second sliding groove, two side plates with U-shaped cross sections arranged on the fourth base plate at intervals, and a connecting seat arranged between the two side plates in a sliding manner, wherein the top of the connecting seat is provided with a groove matched with an exhaust pipe part.
5. The welding positioning device for the exhaust pipe according to claim 4, wherein a cavity is formed in the side face of the connecting seat, movable magnetic blocks are arranged in the connecting seat, resistance blocks are arranged on the outer side wall of the connecting seat, the resistance blocks are connected with the magnetic blocks through herringbone connecting pieces, limiting columns are arranged in the cavity, the herringbone connecting pieces are located between the limiting columns and the inner wall of the cavity, and when the exhaust pipe part is placed in the groove, the magnetic blocks absorb the exhaust pipe part to move towards the groove and draw the resistance blocks to be pressed and attached to the side plates.
6. The welding positioning device for the exhaust pipe according to claim 4, wherein the motor is installed at the top of the base, and a rotating shaft of the motor is connected with the movable seat through a traction rope.
7. The working method of the exhaust pipe welding positioning device is characterized in that the working method is applied to the exhaust pipe welding positioning device according to any one of claims 4-6, and the method comprises the following steps:
step one, adjusting a movable seat to a first working state;
fixing the exhaust pipe part on the first fixing assembly, and enabling the welding part to face the second fixing assembly;
step three, adjusting the positioning head to extend out and extend into the welding part of the exhaust pipe part;
step four, placing the exhaust pipe part in the groove, so that the positioning head extends into the welding position of the exhaust pipe part;
and fifthly, adjusting the movable seat to a second working state, and performing welding operation.
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| CN202311222122.0A CN117047380B (en) | 2023-09-20 | 2023-09-20 | Exhaust pipe welding positioning device and working method |
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| CN118492840B (en) * | 2024-07-18 | 2024-10-18 | 太仓世钟汽车配件有限公司 | Welding platform for automobile exhaust pipe |
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