Half-shell end cone spot welding positioning device

Abstract

The utility model relates to a half-shell end cone spot welding positioning device which comprises a lower half-shell positioning assembly, an upper half-shell positioning clamping assembly comprises an upper half-shell positioning block driven by an upper half-shell pushing mechanism to move up and down, and a semicircular positioning block matched with an air hole in an upper half shell is arranged on the upper half-shell positioning block. An upper half shell positioning dead point mechanism is arranged between the upper half shell positioning block and the upper half shell pushing mechanism; the large port positioning assembly comprises a large port positioning disc which is driven by a large port pushing mechanism to move towards the large port of the end cone, and a large port positioning dead point mechanism is arranged between the large port positioning disc and the large port pushing mechanism; the small port positioning assembly comprises a small port positioning disc which is driven by a small port pushing mechanism to move towards the small port of the end cone, and a small port positioning dead point mechanism is arranged between the small port positioning disc and the small port pushing mechanism. By adopting the mode, the upper half shell and the lower half shell of the end cone can be accurately positioned, the stability is high, and the working efficiency and the qualified rate of finished products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding fixtures, in particular to a half-shell end cone spot welding positioning device. Background Art

[0002] The end cone is one of the important parts of the automobile exhaust system, which plays a role of interconnection in the entire system. The end cone is usually formed by welding two half shells. During the welding process, the end cone needs to be clamped and fixed. Due to the irregular shape of the end cone, the existing clamping equipment is prone to inaccurate positioning of the clamp and the end cone during the clamping operation. In addition, during the welding process, the heat is high, which makes the half shell easy to move and deform, affecting the welding effect, causing the size to not match during the subsequent assembly, and it cannot be installed, resulting in a high scrap rate. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a half-shell end cone spot welding positioning device, which can accurately position the upper and lower half shells of the end cone, has high stability, and improves work efficiency and finished product qualification rate.

[0004] The utility model provides a half shell end cone spot welding positioning device to solve the above technical problems, comprising:

[0005] A lower half shell positioning assembly, comprising a lower half shell positioning block fixedly arranged on a base;

[0006] An upper half shell positioning clamping assembly is located above the lower half shell positioning assembly, and includes an upper half shell positioning block driven to move up and down by an upper half shell propulsion mechanism, a semicircular positioning block matched with an air hole on the upper half shell is provided on the upper half shell positioning block, and an upper half shell positioning dead point mechanism is provided between the upper half shell positioning block and the upper half shell propulsion mechanism;

[0007] The large port positioning assembly comprises a large port positioning plate driven by a large port propulsion mechanism to move toward the end cone large port, and a large port positioning dead point mechanism is provided between the large port positioning plate and the large port propulsion mechanism;

[0008] The small port positioning component comprises a small port positioning plate which is driven to move toward the end cone small port by a small port propulsion mechanism, and a small port positioning dead point mechanism is arranged between the small port positioning plate and the small port propulsion mechanism.

[0009] Furthermore, the port propulsion mechanism includes a first mounting seat fixedly arranged on the base and a port linear drive cylinder fixed on the first mounting seat; a first mounting block is provided on the back side of the port positioning disk, a first connecting hole and a first sliding hole radially penetrating the first connecting hole and the first mounting block are provided on the first mounting block, a first movable block fixed to the driving end of the port linear drive cylinder is provided in the first connecting hole, and a first movable pin fixed to the first movable block is movably provided in the first sliding hole; the port positioning dead point mechanism includes a first connecting rod hinged at one end to the first mounting seat, a second connecting rod hinged at one end to the first mounting block, the first connecting rod and the free ends of the second connecting rod are hinged, a port clamping handle is provided in the middle of the first connecting rod, and a first abutment block which can be abutted against the outer surface of the first movable pin is provided at the end of the second connecting rod away from the first connecting rod.

[0010] Furthermore, the first mounting seat is also provided with a first guide sleeve located on both sides of the port linear drive cylinder, a first guide rod is movably provided in the first guide sleeve, and one end of the first guide rod is fixed to the first mounting block.

[0011] Furthermore, an outer diameter limiting ring and an inner diameter positioning plate are provided on the port positioning plate, the inner ring surface of the outer diameter limiting ring is used to position the outer periphery of the end cone port, and a positioning ring groove for accommodating the end cone port is provided between the outer diameter limiting ring and the inner diameter positioning plate.

[0012] Furthermore, the outer diameter limit ring is circumferentially distributed with notches, and the outer circumferential wall of the inner diameter positioning plate is provided with mounting grooves corresponding to the notches; some mounting grooves are provided with inner diameter positioning blocks, and the inner diameter positioning blocks are provided with positioning outer arc surfaces for positioning the inner hole of the end cone, and the positioning outer arc surfaces extend into the positioning ring groove and have a gap between the inner ring surface and the end cone port; some mounting grooves are also provided with end positioning blocks, and the protruding ends of the end positioning blocks extend into the notches, and the end positioning blocks are provided with port positioning surfaces for positioning the end cone port.

[0013] Furthermore, a port adjustment gasket extending in the direction of the corresponding mounting groove is inserted in the notch, the port adjustment gasket is located between the end positioning block and the port positioning disk, the inner extending end of the port adjustment gasket is provided with a first plug-in notch, the port positioning disk is provided with a first mounting hole corresponding to the first plug-in notch, the end positioning block is provided with a first fixing hole corresponding to the first mounting hole, and the small diameter end of the first fastener passes through the first plug-in notch via the first fixing hole to be connected to the first mounting hole.

[0014] Furthermore, an inner diameter adjustment gasket extending along the axial direction of the port positioning disk is inserted in the mounting groove, a second plug-in notch is opened at the inner extending end of the inner diameter adjustment gasket, a second mounting hole corresponding to the second plug-in notch is provided on the outer peripheral wall of the inner diameter positioning disk, a second fixing hole corresponding to the second plug-in notch is provided on the inner diameter positioning block, and the small diameter end of the second fastener passes through the second fixing hole and the second plug-in notch in sequence through the notch to be connected to the second mounting hole.

[0015] Furthermore, wear indicating grooves are provided on the positioning outer arc surface and the port positioning surface.

[0016] Further, the upper half shell propulsion mechanism includes a second mounting seat and an upper half shell linear drive cylinder fixed on the second mounting seat, the second mounting seat is fixed to the top of the bracket on the base, and the upper half shell positioning clamping assembly also includes a support for installing the upper half shell positioning block, the upper back part of the support is provided with a second mounting block, the second mounting block is provided with a second connecting hole and a second sliding hole radially passing through the second connecting hole and the second mounting block, a second movable block fixed to the driving end of the upper half shell linear drive cylinder is movably provided in the second connecting hole, and a second movable pin fixed to the second movable block is movably provided in the second sliding hole, and the upper half shell positioning dead point mechanism includes a third connecting rod with one end hinged to the second mounting seat, a fourth connecting rod with one end hinged to the second mounting block, the third connecting rod is hinged to the free end of the fourth connecting rod, an upper half shell clamping handle is provided at the middle part of the third connecting rod, and a second abutment block which can be abutted against the outer surface of the second movable pin is provided at an end of the fourth connecting rod away from the third connecting rod.

[0017] Furthermore, the bracket includes a vertical frame fixed to the base, a cantilever is fixed on the top of the vertical frame, a stop plate is fixed to the extended end of the cantilever, the second mounting seat is fixed to the stop plate, the second mounting seat is provided with a second guide sleeve located on both sides of the upper half shell linear drive cylinder, the second guide sleeve is provided with a second guide rod, the lower end of the second guide rod is fixed to the second mounting block, and a limit block is provided on the top of one of the second guide rods, one end of the limit block extends to the other side of the stop plate and is fixed to the telescopic rod, the lower end of the telescopic rod passes through the through hole on the cantilever and is fixed to the connecting block, and the connecting block is fixed to the bottom of the cantilever.

[0018] The beneficial effects of the utility model are as follows: the lower half shell positioning block of the lower half shell positioning assembly can be used to preliminarily position the lower half shell of the end cone in the vertical direction; the upper half shell positioning and clamping assembly is used to clamp and position the upper half shell of the end cone, and the upper half shell pushing mechanism drives the upper half shell positioning block to move up and down. When the upper half shell positioning block moves downward, the semicircular positioning block on the upper half shell positioning block is inserted into the air hole of the upper half shell to position the upper half shell, and the upper half shell positioning block continuously presses down to clamp the upper half shell and the lower half shell. The upper half shell positioning dead point mechanism arranged between the upper half shell positioning block and the upper half shell pushing mechanism ensures that the upper half shell positioning block is pressed into place, and fixes the upper half shell positioning block to keep it stable, thereby ensuring the stability of the upper and lower half shells in the radial direction of the end cone, and ensuring that the end cone does not move during spot welding; the large port positioning assembly and the small port positioning assembly respectively position the large port and the small port of the end cone to ensure the axial positioning of the end cone. The large port pushing mechanism drives the large port positioning plate to move toward the large port of the end cone, and the large port positioning plate aligns the edge lines of the upper and lower shells of the large port of the end cone, and the large port positioning dead point mechanism is used to ensure that the large port positioning plate is pushed into place and fixes the edge lines of the large port of the upper and lower shells; the small port pushing mechanism pushes the small port positioning plate to move toward the small port of the end cone, and the small port positioning plate aligns the edge lines of the upper and lower shells of the small port of the end cone, and the small port positioning dead point mechanism is used to ensure that the small port positioning plate is pushed into place and fixes the edge lines of the small port of the upper and lower shells, thereby ensuring that the edge lines of the upper and lower shells of the two ports of the end cone are aligned and can remain stable during spot welding without deformation or displacement.

[0019] When using:

[0020] First, place the lower half shell into the lower half shell positioning block on the base, and then pre-install the upper half shell on the lower half shell to assemble a complete end cone.

[0021] Afterwards, the large port positioning disk is pushed toward the large port of the end cone through the large port pushing mechanism, and the large port positioning disk is aligned with the large port edge lines of the upper and lower shells, and the inner diameter and outer diameter of the large port of the end cone are limited. After the large port pushing mechanism pushes the large port positioning disk into place, the large port positioning dead point mechanism is used to slightly push the large port positioning disk to ensure that the large port positioning disk is pushed into place and locked, thereby ensuring the stability of the large port positioning disk.

[0022] After that, the small port positioning disk is pushed toward the small port of the end cone through the small port pushing mechanism. The small port positioning disk aligns the small port edge lines of the upper and lower shells and limits the inner diameter and outer diameter of the small port of the end cone. After the small port positioning disk of the small port pushing mechanism is in place, the small port positioning dead point mechanism is used to slightly push the small port positioning disk to ensure that the small port positioning disk is pushed into place and locked to ensure the stability of the small port positioning disk.

[0023] Finally, the upper shell positioning block is pushed downward by the upper shell advancing mechanism, and the semicircular positioning block on the upper shell positioning block is inserted into the air hole of the upper shell to position the upper shell. The upper shell positioning block is continuously pressed downward to compact the upper shell, and then the upper shell positioning block is slightly advanced by the upper shell positioning dead point mechanism to ensure that the upper shell positioning block is pushed into place and locked to ensure the stability of the upper shell positioning block.

[0024] In summary, the utility model can be used to facilitate the assembly of the upper and lower shells of the end cone, and the installation is convenient and quick. The relative position of the end cone in its radial direction is ensured by the setting of the upper shell positioning and clamping assembly and the lower shell positioning assembly. The upper and lower shells are clamped by pressing down the upper shell positioning and clamping assembly and cooperating with the lower shell positioning assembly, and the stability of their relative positions is ensured by the upper shell positioning dead point mechanism. The large port positioning assembly and the small port positioning assembly are used to ensure that the side lines of the upper and lower shells of the end cone are aligned and clamped, and the inner diameter and outer diameter of the two ports of the end cone are limited, and then the port positioning dead point mechanism is used to keep it stable. The positioning is accurate, and the position of the upper and lower shells can be effectively controlled to ensure that the upper and lower shells do not move or deform during the welding process, thereby ensuring the welding quality, improving the welding accuracy, and thus improving the qualified rate of finished products.

[0025] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the small port positioning component of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the small port positioning plate of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the upper half shell positioning and clamping assembly of the utility model;

[0030] Figure 5 It is a structural schematic diagram of a semicircular positioning block of the utility model.

[0031] In the accompanying drawings: 1-base, 11-bracket, 111-vertical frame, 112-cantilever, 113-stop plate, 114-connecting block, 2-lower half shell positioning assembly, 21-lower half shell positioning block, 3-upper half shell positioning clamping assembly, 31-upper half shell propulsion mechanism, 311-second mounting seat, 312-upper half shell linear drive cylinder, 313-second guide sleeve, 314-second guide rod, 315-limiting block, 316-telescopic rod, 32-upper half shell positioning block, 321-semicircular positioning block, 33 -Upper half shell positioning dead point mechanism, 331-third connecting rod, 332-fourth connecting rod, 333-upper half shell clamping handle, 334-second stop block, 34-support, 35-second mounting block, 351-second connecting hole, 352-second sliding hole, 353-second movable block, 354-second movable pin, 4-large port positioning assembly, 41-large port propulsion mechanism, 42-large port positioning plate, 43-large port positioning dead point mechanism, 5-small port positioning assembly, 51-small port propulsion mechanism , 511-first mounting seat, 512-port linear drive cylinder, 513-first guide sleeve, 514-first guide rod, 52-small port positioning plate, 521-outer diameter limit ring, 5211-inner ring surface, 5212-notch, 522-inner diameter positioning plate, 5221-mounting groove, 5222-second mounting hole, 523-positioning ring groove, 524-inner diameter positioning block, 5241-positioning outer arc surface, 5242-second fixing hole, 525-end positioning block, 5251-port positioning Surface, 5252-first fixing hole, 526-port adjustment gasket, 5261-first plug-in notch, 5262-first mounting hole, 527-inner diameter adjustment gasket, 5271-second plug-in notch, 53-small port positioning dead point mechanism, 531-first connecting rod, 532-second connecting rod, 533-port clamping handle, 534-first stop block, 54-first mounting block, 541-first connecting hole, 542-first sliding hole, 543-first movable block, 544-first movable pin. DETAILED DESCRIPTION

[0032] With reference to the accompanying drawings, specific embodiments of the present invention will be described in detail.

[0033] Reference Figures 1 to 5 The utility model provides an embodiment of a half-shell end cone spot welding positioning device.

[0034] A half-shell end cone spot welding positioning device comprises a lower half shell positioning component 2 for placing the lower half shell of the end cone, an upper half shell positioning clamping component 3 for positioning the upper half shell of the end cone and pressing the upper and lower half shells, a large port positioning component 4 for aligning and pressing the large port edges of the upper and lower half shells of the end cone, and a small port positioning component 5 for aligning and pressing the small port edges of the upper and lower half shells of the end cone.

[0035] Among them, the lower half shell positioning assembly 2 includes a lower half shell positioning block 21 fixedly set on the base 1, the lower half shell is placed on the lower half shell positioning block 21, and the lower half shell of the end cone is initially positioned in the vertical direction. The lower half shell positioning block 21 is fixed on the base 1 through the lower half shell mounting seat.

[0036] The upper shell positioning clamping assembly 3 is located above the lower shell positioning assembly 2, and includes an upper shell positioning block 32 that is driven to move up and down by the upper shell propulsion mechanism 31, and a gap for installing the end cone is left between the upper shell positioning block 32 and the lower shell positioning block 21. The upper shell positioning block 32 is provided with a semicircular positioning block 321 that cooperates with the air hole on the upper shell, and the semicircular positioning block 321 is inserted into the air hole of the upper shell to position the upper shell. An upper shell positioning dead point mechanism 33 is provided between the upper shell positioning block 32 and the upper shell propulsion mechanism 31, and the upper shell positioning dead point mechanism 33 ensures that the upper shell positioning block 32 of the end cone is pushed into place and locked under the action of the upper shell propulsion mechanism 31, ensuring that the upper shell is pressed against the lower shell, thereby ensuring the stability of the upper and lower shells in the radial direction of the end cone, and ensuring that the end cone does not move during spot welding.

[0037] The large port positioning assembly 4 includes a large port positioning plate 42 driven to move toward the large port of the end cone by a large port pushing mechanism 41, and a large port positioning dead point mechanism 43 is provided between the large port positioning plate 42 and the large port pushing mechanism 41. The large port pushing mechanism 41 drives the large port positioning plate 42 to move toward the large port of the end cone, and the large port positioning plate 42 aligns the edge lines of the upper and lower half shells of the large port of the end cone, and the large port positioning dead point mechanism 43 ensures that the large port positioning plate 42 is pushed into place and fixes the large port edge lines of the upper and lower half shells;

[0038] The small port positioning assembly 5 includes a small port positioning plate 52 that is driven to move toward the small port of the end cone by a small port pushing mechanism 51, and a small port positioning dead point mechanism 53 is provided between the small port positioning plate 52 and the small port pushing mechanism 51. The small port pushing mechanism 51 pushes the small port positioning plate 52 to move toward the small port of the end cone, and the small port positioning plate 52 aligns the edge lines of the upper and lower half shells of the small port of the end cone. The small port positioning dead point mechanism 53 ensures that the small port positioning plate 52 is pushed into place and fixes the edge lines of the small ports of the upper and lower half shells.

[0039] In some embodiments, the large port positioning assembly 4 and the small port positioning assembly 5 are arranged on both sides of the lower half shell positioning assembly 2 and the upper half shell positioning clamping assembly 3, corresponding to the directions of the large port and small port of the end cone, and the large port positioning assembly 4 and the small port positioning assembly 5 have the same structure.

[0040] Specifically, the port propulsion mechanism includes a first mounting seat 511 fixed on the base 1 and a port linear drive cylinder 512 fixed on the first mounting seat 511, and the port linear drive cylinder 512 pushes the port positioning plate toward the port direction of the end cone or away from the port of the end cone.

[0041] A first mounting block 54 is provided on the back side of the port positioning disk. The first mounting block 54 is provided with a first connecting hole 541 and a first sliding hole 542 radially penetrating the first connecting hole 541 and the first mounting block 54. A first movable block 543 fixed to the driving end of the port linear drive cylinder 512 is provided in the first connecting hole 541. A first movable pin 544 fixed to the first movable block 543 is movably provided in the first sliding hole 542. At this time, the first sliding hole 542 can be set as a large round hole or a bar hole. The first movable pin 544 can move in the first sliding hole 542 along the telescopic direction of the port linear drive cylinder 512. The first movable block 543 is driven to move by the port linear drive cylinder 512. The first movable block 543 drives the first movable pin 544 to move in the first sliding hole 542 until it contacts the wall edge of the first sliding hole 542, and then continues to drive the first mounting block 54 to move, thereby driving the port positioning disk to move away from or close to the port of the end cone.

[0042] The port positioning dead point mechanism includes a first connecting rod 531 with one end hinged to the first mounting seat 511, and a second connecting rod 532 with one end hinged to the first mounting block 54. The free ends of the first connecting rod 531 and the second connecting rod 532 are hinged. A port clamping handle 533 is provided in the middle of the first connecting rod 531, and a first abutment block 534 which can be abutted against the outer surface of the first movable pin 544 is provided at one end of the second connecting rod 532 away from the first connecting rod 531.

[0043] Furthermore, the first mounting seat 511 is provided with first guide sleeves 513 located on both sides of the port linear drive cylinder 512, and a first guide rod 514 is movably provided in the first guide sleeve 513, and one end of the first guide rod 514 is fixed to the first mounting block 54. In this way, the stability of the movement of the first mounting block 54 can be ensured, thereby ensuring the stability of the movement of the port positioning plate.

[0044] When the port linear drive cylinder 512 extends and pushes the port positioning disk to press against the port of the end cone, the port clamping handle 533 is pressed downward in the direction of the port positioning disk, and the first connecting rod 531 drives the second connecting rod 532 to rotate and push the first mounting seat 511 to move slightly in the direction of the port of the end cone, so as to ensure that the port positioning disk is pushed into place. When the axes of the first connecting rod 531 and the second connecting rod 532 are coaxial, the first abutment block 534 abuts against the outer surface of the first movable pin 544. At this time, the first movable pin 544 abuts against the side wall of the port of the first sliding hole 542 close to the end cone, and the first movable pin 544 positions the downward pressing angle of the port clamping handle 533, so as to ensure that after the port clamping handle 533 is pressed into place, the first connecting rod 531 and the second connecting rod 532 form a coaxial dead point mechanism to fix the position of the port positioning disk. When the port linear drive cylinder 512 retracts, it first drives the first movable block 543 to move in the first connecting hole 541, and then drives the first movable pin 544 to move in the first sliding hole 542 in the direction of the port away from the end cone. The first movable pin 544 acts on the first stop block 534, so that the first stop block 534 rotates around the hinge point between the second connecting rod 532 and the first mounting block 54, and then drives the second connecting rod 532 to rotate, so that the second connecting rod 532 drives the first connecting rod 531 to rotate, and there is an angle between the axis of the second connecting rod 532 and the first connecting rod 531, so as to release the restriction of the dead point mechanism, and then facilitate the removal of the end cone from the device. In this way, the port positioning disk can be fixed after the port positioning disk pushes the port of the end cone tightly, ensuring the clamping and stability of the end cone, and after the spot welding is completed, the port positioning dead point mechanism does not need to be operated and unlocked, and the first movable pin 544 can be automatically unlocked by retracting the port linear drive cylinder 512 to drive the first movable pin 544 to move, which is convenient to use.

[0045] In some embodiments, the port positioning disk is provided with an outer diameter limiting ring 521 and an inner diameter positioning disk 522, the inner ring surface 5211 of the outer diameter limiting ring 521 is used to position the outer periphery of the end cone port, and a positioning ring groove 523 for accommodating the end cone port is provided between the outer diameter limiting ring 521 and the inner diameter positioning disk 522. When the port positioning disk is pushed toward the port of the end cone, the port of the end cone is inserted into the positioning ring groove 523, the inner diameter positioning disk 522 positions the inner hole of the end cone, and the outer diameter limiting ring 521 positions the outer ring of the end cone.

[0046] Furthermore, notches 5212 are distributed circumferentially on the outer diameter limit ring 521, and mounting grooves 5221 corresponding to the notches 5212 are provided on the outer peripheral wall of the inner diameter positioning disk 522; preferably, the notches 5212 and the mounting grooves 5221 are evenly distributed along the circumference of the port positioning disk, and the mounting grooves 5221 and the notches 5212 are used to install the inner diameter positioning blocks 524 and the end positioning blocks 525, and the inner diameter positioning blocks 524 and the end positioning blocks 525 are distributed along the circumferential direction and can also be alternately arranged.

[0047] Part of the installation grooves 5221 is provided with an inner diameter positioning block 524, and the inner diameter positioning block 524 is provided with a positioning outer arc surface 5241 for positioning the inner hole of the end cone, wherein the positioning outer arc surface 5241 is provided with a wear indication groove, and when the inner diameter positioning block 524 is worn to the groove bottom position of the wear indication groove, the inner diameter positioning block 524 is replaced. The positioning outer arc surface 5241 extends into the positioning ring groove 523 and has a gap between the inner ring surface 5211 to accommodate the end cone port; through the setting of the inner diameter positioning block 524, the gap between the positioning outer arc surface 5241 of the inner diameter positioning block 524 and the inner ring surface 5211 is consistent with the port thickness of the end cone, and the inner and outer diameters of the end cone port can be accurately positioned.

[0048] An end positioning block 525 is also provided in part of the installation groove 5221, and the protruding end of the end positioning block 525 extends into the notch 5212, that is, the end positioning block 525 is partially located in the positioning ring groove 523, and the end positioning block 525 is provided with a port positioning surface 5251 for positioning the end cone port. Preferably, a wear indication groove is provided on the port positioning surface 5251, and the end positioning block 525 is replaced when the end positioning block 525 is worn to the bottom position of the wear indication groove. When the port positioning plate is pressed against the end cone port, the edge of the port abuts against the end positioning block 525, and the position of the end cone port edge is limited to avoid the upper and lower shells of the end cone from moving in series during welding.

[0049] Further, a port adjustment gasket 526 extending toward the corresponding mounting groove 5221 is inserted in the notch 5212, the port adjustment gasket 526 is located between the end positioning block 525 and the port positioning plate, a first plugging notch 5261 is provided at the inner end of the port adjustment gasket 526, a first mounting hole 5262 corresponding to the first plugging notch 5261 is provided on the port positioning plate, a first fixing hole 5252 corresponding to the first mounting hole 5262 is provided on the end positioning block 525, and the small-diameter end of the first fastener passes through the first plugging notch 5261 through the first fixing hole 5252 and is connected to the first mounting hole 5262. The first mounting hole 5262 can be set as a threaded hole, and the first fastener can be a bolt. When the first fastener and the first mounting hole 5262 are screwed and pressed against the end positioning block 525, the port adjustment gasket 526 and the end positioning block 525 are installed and fixed; when the first fastener is unscrewed from the first mounting inner part, the first fastener and the end positioning block 525 are loosened, and the port adjustment gasket 526 can be taken out or inserted from the first fastener through the first plug-in notch 5261, and the number of the port adjustment gaskets 526 can be increased or decreased. In this way, by controlling the number of the port adjustment gaskets 526, the position of the end positioning block 525 can be adjusted to ensure that both axial ends of the end cone can be abutted and clamped by the end positioning block 525; and it is not only convenient to replace the end positioning block 525, but also convenient to increase or decrease the number of the port adjustment gaskets 526.

[0050] Further, an inner diameter adjustment gasket 527 extending in the axial direction of the port positioning disk is inserted in the mounting groove 5221, a second plugging notch 5271 is provided at the inner extension end of the inner diameter adjustment gasket 527, a second mounting hole 5222 corresponding to the second plugging notch 5271 is provided on the outer peripheral wall of the inner diameter positioning disk 522, a second fixing hole 5242 corresponding to the second plugging notch 5271 is provided on the inner diameter positioning block 524, and the small diameter end of the second fastener passes through the second fixing hole 5242 and the second plugging notch 5271 in sequence through the notch 5212 to be connected to the second mounting hole 5222. The second mounting hole 5222 can be set as a threaded hole, and the second fastener can be a bolt. Similarly, by setting the inner diameter adjusting gasket 527, the inner diameter of the end cone can be precisely adjusted as required, and the end of the end cone can be precisely positioned to avoid deformation and dislocation during welding. The inner diameter positioning block 524 can also be easily replaced, and the number of inner diameter adjusting gaskets 527 can be increased or decreased.

[0051] In some embodiments, the upper shell propulsion mechanism 31 includes a second mounting seat 311 and an upper shell linear drive cylinder 312 fixed on the second mounting seat 311, the second mounting seat 311 is fixed to the top of the bracket 11 on the base 1, and the upper shell positioning clamping assembly 3 also includes a support 34 for mounting the upper shell positioning block 32, the back of the support 34 is provided with a second mounting block 35, the second mounting block 35 is provided with a second connecting hole 351 and a second sliding hole 352 radially penetrating the second connecting hole 351 and the second mounting block 35, and the second connecting hole 351 is movably provided with a second slide hole 352 for connecting with the upper shell linear drive cylinder 31 2, a second movable block 353 is fixed at the driving end of the second movable block 353, a second movable pin 354 fixed to the second movable block 353 is movably provided in the second sliding hole 352, the upper shell positioning dead point mechanism 33 includes a third connecting rod 331 with one end hinged to the second mounting seat 311, and a fourth connecting rod 332 with one end hinged to the second mounting block 35, the third connecting rod 331 is hinged to the free end of the fourth connecting rod 332, an upper shell clamping handle 333 is provided in the middle of the third connecting rod 331, and a second abutting block 334 which can be pressed against the outer surface of the second movable pin 354 is provided at one end of the fourth connecting rod 332 away from the third connecting rod 331.

[0052] When the upper shell linear drive cylinder 312 is extended, the upper shell positioning block 32 is pressed down and pressed on the upper shell, and the upper shell clamping handle 333 is pressed down toward the support 34. The upper shell clamping handle 333 drives the third connecting rod 331 and the fourth connecting rod 332 to rotate. The fourth connecting rod 332 pushes the support 34 to move slightly toward the upper shell to press it into place until the third connecting rod 331 and the fourth connecting rod 332 form a dead point mechanism coaxially to fix the position of the upper shell positioning block 32. At this time, the second stop block 334 on the fourth connecting rod 332 is pressed against the second movable pin 354, and the second movable pin 354 is pressed against the wall edge of the second sliding hole 352 close to the upper shell side. The upper half shell linear drive cylinder 312 contracts and drives the second movable block 353 to move in the second connecting hole 351, and the second movable block 353 drives the second movable pin 354 to move in the second sliding hole 352 in the direction away from the upper half shell, and the second movable pin 354 pushes the second stop block 334 to rotate around the hinge point between the fourth connecting rod 332 and the second mounting block 35, thereby driving the fourth connecting rod 332 to rotate, so that there is an angle between the fourth connecting rod 332 and the third connecting rod 331, and the restriction of the upper half shell positioning dead point mechanism 33 is released, so that the end cone can be easily removed from the device. Similarly, the position of the upper half shell positioning block 32 can be fixed to ensure that the upper half shell positioning block 32 is pressed against the upper half shell, and after the spot welding is completed, there is no need to operate the upper half shell positioning dead point mechanism 33, and the upper half shell can be automatically unlocked by only driving the second movable pin 354 to move by the upper half shell linear drive cylinder 312.

[0053] Furthermore, the bracket 11 includes a vertical frame 111 fixed to the base 1, a cantilever 112 is fixed to the top of the vertical frame 111, a stop plate 113 is fixed to the extended end of the cantilever 112, the second mounting seat 311 is fixed to the stop plate 113, the second mounting seat 311 is provided with a second guide sleeve 313 located on both sides of the upper half shell linear drive cylinder 312, the second guide sleeve 313 is provided with a second guide rod 314, the lower end of the second guide rod 314 is fixed to the second mounting block 35, a limit block 315 is provided on the top of one of the second guide rods, one end of the limit block 315 extends to the other side of the stop plate 113 and is fixed to the telescopic rod 316, the lower end of the telescopic rod 316 passes through the through hole on the cantilever 112 and is fixed to the connecting block 114, and the connecting block 114 is fixed to the bottom of the cantilever 112. In this way, by setting the limit block 315 and the stop plate 113, the maximum downward stroke of the upper shell positioning block 32 can be limited to avoid crushing the end cone, and by setting the second guide sleeve 313 and the second guide rod 314, the stability of the movement of the upper shell positioning block 32 can be improved.

[0054] By adopting the utility model, the upper and lower shells of the end cone can be conveniently assembled, and the installation is convenient and quick. The relative position of the end cone in its radial direction is ensured by the setting of the upper shell positioning clamping component 3 and the lower shell positioning component 2, and the upper and lower shells are clamped by pressing down the upper shell positioning clamping component 3 and cooperating with the lower shell positioning component 2. The stability of their relative positions is ensured by the upper shell positioning dead point mechanism 33, and the two side edge lines of the upper and lower shells of the end cone are aligned and clamped by the setting of the large port positioning component 4 and the small port positioning component 5, and then the port positioning dead point mechanism is used to keep them stable. The positioning is accurate, and the positions of the upper and lower shells can be effectively controlled to ensure that the upper and lower shells are not displaced or deformed during the welding process, thereby ensuring the welding quality, improving the welding accuracy, and thus improving the qualified rate of finished products.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0056] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A half shell end cone spot welding positioning device, characterized in that: include: A lower half shell positioning assembly (2), comprising a lower half shell positioning block (21) fixedly arranged on the base (1); An upper shell positioning clamping assembly (3) is located above the lower shell positioning assembly (2), and comprises an upper shell positioning block (32) driven to move up and down by an upper shell propulsion mechanism (31), a semicircular positioning block (321) cooperating with an air hole on the upper shell is provided on the upper shell positioning block (32), and an upper shell positioning dead point mechanism (33) is provided between the upper shell positioning block (32) and the upper shell propulsion mechanism (31); A large port positioning assembly (4) comprises a large port positioning plate (42) driven by a large port propulsion mechanism (41) to move toward the end cone large port, and a large port positioning dead point mechanism (43) is provided between the large port positioning plate (42) and the large port propulsion mechanism (41); The small port positioning assembly (5) comprises a small port positioning plate (52) driven by a small port propulsion mechanism (51) to move towards the end cone small port, and a small port positioning dead point mechanism (53) is provided between the small port positioning plate (52) and the small port propulsion mechanism (51).

2. The half shell end cone spot welding positioning device according to claim 1, characterized in that: The port propulsion mechanism comprises a first mounting seat (511) fixed on the base (1) and a port linear drive cylinder (512) fixed on the first mounting seat (511); A first mounting block (54) is provided on the back side of the port positioning disk, the first mounting block (54) is provided with a first connecting hole (541) and a first sliding hole (542) radially penetrating the first connecting hole (541) and the first mounting block (54), a first movable block (543) fixed to the driving end of the port linear driving cylinder (512) is provided in the first connecting hole (541), and a first movable pin (544) fixed to the first movable block (543) is movably provided in the first sliding hole (542); The port positioning dead point mechanism comprises a first connecting rod (531) having one end hinged to the first mounting seat (511), and a second connecting rod (532) having one end hinged to the first mounting block (54); the free ends of the first connecting rod (531) and the second connecting rod (532) are hinged; a port clamping handle (533) is provided in the middle of the first connecting rod (531); and a first abutting block (534) which can be abutted against the outer surface of the first movable pin (544) is provided at one end of the second connecting rod (532) away from the first connecting rod (531).

3. The half shell end cone spot welding positioning device according to claim 2, characterized in that: The first mounting seat (511) is also provided with a first guide sleeve (513) located on both sides of the port linear drive cylinder (512), and a first guide rod (514) is movably provided in the first guide sleeve (513), and one end of the first guide rod (514) is fixed to the first mounting block (54).

4. The half shell end cone spot welding positioning device according to claim 1, characterized in that: An outer diameter limiting ring (521) and an inner diameter limiting plate (522) are provided on the port positioning plate. The inner ring surface (5211) of the outer diameter limiting ring (521) is used for positioning the outer periphery of the end cone port. A positioning ring groove (523) for accommodating the end cone port is provided between the outer diameter limiting ring (521) and the inner diameter limiting plate (522).

5. The half shell end cone spot welding positioning device according to claim 4, characterized in that: The outer diameter limiting ring (521) is provided with notches (5212) distributed circumferentially, and the outer peripheral wall of the inner diameter positioning plate (522) is provided with mounting grooves (5221) corresponding to the notches (5212); An inner diameter positioning block (524) is provided in a part of the installation groove (5221), and a positioning outer arc surface (5241) for positioning the inner hole of the end cone is provided on the inner diameter positioning block (524), and the positioning outer arc surface (5241) extends into the positioning annular groove (523) and has a gap between the inner annular surface (5211) for accommodating the end cone port; An end positioning block (525) is also provided in part of the installation groove (5221), the protruding end of the end positioning block (525) extends into the notch (5212), and the end positioning block (525) is provided with a port positioning surface (5251) for positioning the end cone port.

6. The half shell end cone spot welding positioning device according to claim 5, characterized in that: A port adjustment gasket (526) extending in the direction of the corresponding mounting groove (5221) is inserted into the notch (5212); the port adjustment gasket (526) is located between the end positioning block (525) and the port positioning disk; a first plugging notch (5261) is provided at the inner extending end of the port adjustment gasket (526); a first mounting hole (5262) ​​corresponding to the first plugging notch (5261) is provided on the port positioning disk; a first fixing hole (5252) corresponding to the first mounting hole (5262) ​​is provided on the end positioning block (525); and a small-diameter end of the first fastener passes through the first plugging notch (5261) via the first fixing hole (5252) and is connected to the first mounting hole (5262).

7. The half shell end cone spot welding positioning device according to claim 5, characterized in that: An inner diameter adjustment gasket (527) extending along the axial direction of the port positioning disk is inserted into the mounting groove (5221), and a second plug-in notch (5271) is provided at the inner extending end of the inner diameter adjustment gasket (527). A second mounting hole (5222) corresponding to the second plug-in notch (5271) is provided on the outer peripheral wall of the inner diameter positioning disk (522), and a second fixing hole (5242) corresponding to the second plug-in notch (5271) is provided on the inner diameter positioning block (524). The small diameter end of the second fastener passes through the second fixing hole (5242) and the second plug-in notch (5271) in sequence through the notch (5212) to be connected to the second mounting hole (5222).

8. The half shell end cone spot welding positioning device according to any one of claims 5 to 7, characterized in that: Wear indicating grooves are provided on the positioning outer arc surface (5241) and the port positioning surface (5251).

9. The half shell end cone spot welding positioning device according to claim 1, characterized in that: The upper shell propulsion mechanism (31) comprises a second mounting seat (311) and an upper shell linear drive cylinder (312) fixed on the second mounting seat (311), wherein the second mounting seat (311) is fixed to the top of the bracket (11) on the base (1). The upper half shell positioning clamping assembly (3) further comprises a support (34) for mounting the upper half shell positioning block (32); a second mounting block (35) is provided on the upper back of the support (34); a second connecting hole (351) and a second sliding hole (352) radially penetrating the second connecting hole (351) and the second mounting block (35) are provided on the second mounting block (35); a second movable block (353) fixed to the driving end of the upper half shell linear driving cylinder (312) is movably provided in the second connecting hole (351); a second movable pin (354) fixed to the second movable block (353) is movably provided in the second sliding hole (352); The upper shell positioning dead point mechanism (33) comprises a third connecting rod (331) having one end hinged to the second mounting seat (311), and a fourth connecting rod (332) having one end hinged to the second mounting block (35). The free ends of the third connecting rod (331) and the fourth connecting rod (332) are hinged. An upper shell clamping handle (333) is provided in the middle of the third connecting rod (331), and a second abutting block (334) which can be abutted against the outer surface of the second movable pin (354) is provided at one end of the fourth connecting rod (332) away from the third connecting rod (331).

10. The half shell end cone spot welding positioning device according to claim 9, characterized in that: The support (11) comprises a vertical frame (111) fixed to the base (1), a cantilever (112) being fixed to the top of the vertical frame (111), a stop plate (113) being fixed to the outwardly extending end of the cantilever (112), the second mounting seat (311) being fixed to the stop plate (113), the second mounting seat (311) being provided with a second guide sleeve (313) located on both sides of the upper half shell linear drive cylinder (312), the second guide sleeve (313) being provided with a second guide rod ( 314), the lower end of the second guide rod (314) is fixed to the second mounting block (35), wherein a limit block (315) is provided at the top of the second guide rod (314), one end of the limit block (315) extends to the other side of the stop plate (113) and is fixed to the telescopic rod (316), the lower end of the telescopic rod (316) passes through the through hole on the cantilever (112) and is fixed to the connecting block (114), and the connecting block (114) is fixed to the bottom of the cantilever (112).

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