A precise welding equipment for compressor accessory machining

Abstract

The present application relates to the technical field of welding, in particular to a precise welding equipment for compressor accessory machining, which comprises a support table, a rotating disc is rotatably installed on the upper side of the support table, a vane end plate parallel and concentric with the rotating disc is arranged above the rotating disc; a sliding sleeve is sleeved on the outer side of the guide rail, a laser welding head is installed on the outer side of the sliding sleeve, and the end of the laser welding head is obliquely arranged; an adjusting end plate is arranged on the outer side of the polygonal sleeve, and a polygonal through slot matched with the polygonal sleeve is formed in the middle of the adjusting end plate; the vane end plate and the scroll vane are placed on the upper surface of the rotating disc and rotate together with the rotating disc, the sliding sleeve is slidably installed on the guide rail, the square sleeve is inserted into the inner cavity of the sliding sleeve, the length of the square sleeve is greater than the width of the sliding sleeve, and the one end of the square sleeve is provided with the adjusting end plate; the device can sequentially weld the inner and outer sides of the contact part of the scroll vane and the vane end plate, and ensure high welding strength and precise welding point.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of welding, and particularly relates to precise welding equipment for compressor accessory machining. BACKGROUND

[0002] A scroll disc is a core component of a scroll compressor, and is usually a spiral metal thin-wall curved surface. A split scroll disc needs to be connected through high-precision welding to ensure the integrity of the split disc body and avoid deformation or cracking during operation.

[0003] In the prior art, the Chinese invention with the publication number CN119703535A discloses a welding device and welding process for a compressor impeller. When welding a closed impeller, the welding module only needs to run once according to the set trajectory to realize the bilateral welding of the blade, without the need to reset the running trajectory and welding work after welding one side, thereby improving the welding efficiency.

[0004] At present, traditional welding equipment adopts laser welding or electron beam welding to improve precision, but there is still a lack of special clamping and trajectory control scheme for the curved surface characteristics of the scroll disc. The scroll disc welding equipment has obvious deficiencies in welding precision, thermal deformation control and automation integration. Therefore, the application provides precise welding equipment for compressor accessory machining to solve the above problems. SUMMARY

[0005] The application aims to provide precise welding equipment for compressor accessory machining to solve the problem that the traditional welding equipment cannot realize precise welding for the scroll disc with a curved surface structure.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: precise welding equipment for compressor accessory machining, comprising:

[0007] A support table is provided with a rotating disc rotatably installed on the upper side of the support table, a blade end plate is arranged above the rotating disc and parallel and concentric to the rotating disc, scroll vanes are arranged between the blade end plate and the rotating disc, a scroll through slot is formed through the surface of the blade end plate and matched with the scroll vanes, and the upper side of the scroll vanes is inserted into the scroll through slot;

[0008] A guide rail is arranged above the blade end plate, a sliding sleeve is arranged on the outer side of the guide rail, a laser welding head is arranged on the outer side of the sliding sleeve, and the end of the laser welding head is arranged obliquely and corresponds to the scroll through slot;

[0009] The middle part of the sliding sleeve is provided with a square sleeve, and the length of the square sleeve is greater than the width of the sliding sleeve, one end of the square sleeve is fixedly provided with a polygon sleeve, the outer side of the polygon sleeve is provided with an adjusting end plate, the middle part of the adjusting end plate is provided with a polygonal through slot matched with the polygon sleeve, the adjusting end plate and the square sleeve are fixedly connected through an adjusting screw rod, the other end of the square sleeve is fixedly provided with an anti-dropping flange, the middle part of the square sleeve is provided with a driving screw rod, and the driving screw rod drives the square sleeve to slide along the length direction of the guide rail.

[0010] Preferably, the edge corner of one end surface of the square sleeve is fixedly provided with a guide shaft, and the guide shaft movably penetrates the adjusting end plate, one end of the sliding sleeve is fixedly provided with a mounting arm, the lower side of one end of the mounting arm is rotatably provided with a reversing disc, and the laser welding head is mounted on the lower side of the reversing disc.

[0011] Preferably, the surface of the reversing disc is provided with an adjusting groove in the radial direction, the sliding seat is slidably installed in the adjusting groove, the outer side of the reversing disc is provided with an adjusting cylinder for driving the sliding seat to slide, the upper end of the laser welding head is fixedly penetrated through the middle part of the sliding seat, the end part of the laser welding head is located directly below the center of the reversing disc, and the mounting arm is provided with a reversing motor for driving the reversing disc to rotate.

[0012] Preferably, the other end surface of the sliding sleeve is fixedly provided with a hollow cylinder, the hollow cylinder is movably inserted with a limiting shaft, one end of the limiting shaft is fixedly provided with a wear-resistant pressing plate, the outer side of the limiting shaft is provided with a compression spring, and the compression spring tightly presses the wear-resistant pressing plate to be attached to the side surface of the guide rail.

[0013] Preferably, the circumferential side of the blade end plate is provided with two protrusions symmetrically distributed, and the middle part of the protrusion is provided with an anti-rotation clamping groove, the circumferential side of the rotating disc is fixedly provided with two extension arms symmetrically distributed, the extension arms are in the radial direction of the supporting table, the length direction of the extension arm is slidably provided with a clamping rod, the clamping rod is perpendicular to the extension arm, the two clamping rods are respectively corresponding to the two anti-rotation clamping grooves, and are movably penetrated and connected.

[0014] Preferably, the middle part of the extension arm is movably penetrated from top to bottom and provided with a sliding groove, the inner cavity of the sliding groove is slidably provided with a sliding block, the lower end of the clamping rod is movably penetrated through the middle part of the sliding block through threads, and the lower end of the clamping rod is fixedly provided with a polygonal protrusion.

[0015] Preferably, the two inner walls of the sliding groove are fixedly provided with guide bosses, the two side surfaces of the sliding block are provided with guide clamping grooves corresponding to and matched with the guide bosses, one end surface of the sliding block is fixedly provided with a sleeve ring, and one end of the extension arm is provided with an adjusting stud through threads, and one end of the adjusting stud is rotatably mounted in the inner cavity of the sleeve ring.

[0016] Preferably, the upper end of the clamping rod is fixed with a limiting block, a supporting ring is arranged between the limiting block and the sliding block, a nut is fixed on the lower surface of the supporting ring, and the nut is threadedly connected with the upper half of the clamping rod, and the limiting block and the supporting ring are pressed against the upper and lower sides of the blade end plate, respectively.

[0017] Preferably, the upper surface of the rotating disc is provided with a flexible pad, a rotating shaft is fixed on the middle part of the lower surface of the rotating disc, the lower end of the rotating shaft is movably penetrated through the middle part of the supporting table, and a bearing is arranged between the rotating shaft and the supporting table, and a pad ring is arranged between the rotating disc and the supporting table.

[0018] Preferably, a pulley is fixed on the lower end of the rotating shaft, a belt is arranged outside the pulley, the belt and the driving lead screw are drivingly connected with an external transmission box, and the transmission box drives the rotating shaft and the driving lead screw to rotate synchronously.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] In the present application, the blade end plate and the vortex blade are arranged on the upper surface of the rotating disc to rotate with the rotating disc, the sliding sleeve is slidably arranged on the guide rail, the square sleeve is inserted into the inner cavity of the sliding sleeve, the length of the square sleeve is greater than the width of the sliding sleeve, the adjusting end plate is arranged at one end of the square sleeve, the adjusting end plate and the square sleeve are fixedly connected through the adjusting screw, the rotating disc and the driving lead screw rotate synchronously, the driving lead screw drives the square sleeve and the sliding sleeve to slide along the length direction of the guide rail, thereby driving the laser welding head to move along the outer edge of the vortex blade, until the laser welding head is close to the center of the blade end plate, at this time, the rotating disc and the driving lead screw are reversely rotated at the same time, the driving lead screw reversely slides for a certain distance first, and then drives the sliding sleeve to reversely slide, so that the laser welding head can be located at the inner edge of the vortex blade and reversely move along the inner edge of the vortex blade, until close to the edge of the blade end plate. The present application can sequentially weld the inner and outer sides of the contact part of the vortex blade and the blade end plate, so as to ensure high welding strength and precise welding point. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a perspective view of the overall structure of the present application;

[0022] Figure 2 It is a perspective view of the structure of the reversing disc and the guide rail of the present application;

[0023] Figure 3 It is an exploded view of the structure of the sliding sleeve and the square sleeve of the present application;

[0024] Figure 4 It is a top view of the overall structure of the present application;

[0025] Figure 5 Separation diagram of the vortex blade and the blade end plate structure of the present application;

[0026] Figure 6 Stereogram of the extension arm structure of the present application;

[0027] Figure 7 Stereogram of the clamping rod structure of the present application;

[0028] Figure 8 Sectional view diagram of the rotating disc and the support table structure of the present application;

[0029] Figure 9 Diagram of the relative movement track of the laser welding head and the vortex blade structure of the present application;

[0030] Figure 10 Diagram of the end direction of the laser welding head of the present application.

[0031] In the figure: 1, support table; 2, rotating disc; 21, extension arm; 22, sliding groove; 23, guide boss; 24, adjusting stud; 25, sliding block; 251, guide clamping groove; 26, collar; 27, flexible pad; 28, rotating shaft; 281, pulley; 282, bearing; 283, grommet; 3, blade end plate; 31, vortex through groove; 32, protruding part; 33, anti-rotation clamping groove; 4, vortex blade; 5, guide rail; 51, guide sliding groove; 52, sliding sleeve; 521, mounting arm; 522, reversing motor; 53, drive screw; 54, square sleeve; 541, anti-falling flange; 542, polygonal sleeve; 543, guide shaft; 55, adjusting end plate; 551, polygonal through groove; 552, adjusting screw; 56, hollow cylinder; 561, limiting shaft; 562, wear-resistant pressing plate; 563, compression spring; 6, reversing disc; 61, laser welding head; 62, adjusting groove; 63, sliding seat; 64, adjusting cylinder; 7, clamping rod; 71, limiting block; 72, polygonal protruding block; 73, support ring; 74, nut. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution of the present application clear and complete, and the advantages more clear and obvious, the embodiments of the present application are further described in detail below in combination with the drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all the embodiments, and are only used to explain the embodiments of the present application, and do not limit the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0033] Please refer to Figures 1 to 10 , the present application provides a technical solution:

[0034] Embodiment one, a kind of compressor accessory machining precision welding equipment, comprising: support table 1.

[0035] Specifically, rotatingly installed with rotating disc 2 on the upper side of support table 1, rotating disc 2 top is provided with the vane end plate 3 parallel with it and concentric, vane end plate 3 and rotating disc 2 between being provided with scroll vane 4, vane end plate 3 surface is opened with the scroll through slot 31 that is adapted to scroll vane 4, the upper side of scroll vane 4 is inserted into scroll through slot 31, as shown in Figure 1 And Figure 5 The upper side height of scroll vane 4 is slightly lower than the upper surface height of vane end plate 3, the lower side of scroll vane 4 is pressed against the upper surface of rotating disc 2 under the action of gravity of scroll vane 4, rotating disc 2 rotates and drives vane end plate 3 to rotate, scroll vane 4 can keep synchronous rotation with vane end plate 3 by cooperating with scroll through slot 31;

[0036] Second, the upper side of vane end plate 3 is provided with guide rail 5, the outer side of guide rail 5 is sleeved with sliding sleeve 52, the middle part of guide rail 5 is opened with guide sliding slot 51, the outer side of sliding sleeve 52 is installed with laser welding head 61, the end of laser welding head 61 is obliquely arranged and corresponds to scroll through slot 31, since scroll vane 4 has inner and outer sides, when laser welding head 61 welds scroll vane 4 and vane end plate 3, it needs to weld the inner and outer sides of the upper side edge of scroll vane 4 to ensure the strength and accuracy of welding, to avoid welds affecting the performance of compressor, as shown in Figure 4 The laser welding head 61 moves from the edge of vane end plate 3 to the center of vane end plate 3 while vane end plate 3 rotates clockwise, since the distance between any two adjacent sides of scroll through slot 31 is consistent, when the rotating speed of vane end plate 3 and the moving speed of laser welding head 61 are kept fixed, the moving track of laser welding head 61 on the upper surface of vane end plate 3 can coincide with scroll through slot 31, by adjusting the initial position of laser welding head 61, the end of laser welding head 61 corresponds to the outer side of the upper side edge of scroll vane 4, laser welding head 61 can weld and fix the outer side of scroll vane 4 and scroll through slot 31, when the initial position of laser welding head 61 corresponds to the inner side of the upper side edge of scroll vane 4, laser welding head 61 can weld and fix the inner side of scroll vane 4 and scroll through slot 31, so that the inner and outer sides of the upper side edge of scroll vane 4 can be welded and fixed with vane end plate 3, to avoid welds;

[0037] Further, a square sleeve 54 is movably arranged in the middle of the sliding sleeve 52, and the length of the square sleeve 54 is greater than the width of the sliding sleeve 52, so that the square sleeve 54 can move relative to the sliding sleeve 52 along the length direction of the square sleeve 54, one end of the square sleeve 54 is fixedly connected with a polygon sleeve 542, the outer side of the polygon sleeve 542 is provided with an adjusting end plate 55, the middle of the adjusting end plate 55 is provided with a polygon through slot 551 matched with the polygon sleeve 542, the adjusting end plate 55 can move relative to the square sleeve 54 along the outer side of the polygon sleeve 542, the adjusting end plate 55 and the square sleeve 54 are fixedly connected through an adjusting screw 552, the position of the adjusting end plate 55 on the outer side of the polygon sleeve 542 can be changed by rotating the adjusting screw 552, the other end of the square sleeve 54 is fixedly connected with an anti-disengagement flange 541, the anti-disengagement flange 541 and the adjusting end plate 55 are respectively arranged on the two sides of the sliding sleeve 52, and are used for limiting the relative sliding between the square sleeve 54 and the sliding sleeve 52, as shown in Figure 3 When the square sleeve 54 slides to the left and the adjusting end plate 55 is attached to the sliding sleeve 52, the sliding sleeve 52 can push the sliding sleeve 52 to move synchronously with the square sleeve 54, when the square sleeve 54 slides to the right, the square sleeve 54 first moves alone until the anti-disengagement flange 541 is attached to the sliding sleeve 52, at this time, the anti-disengagement flange 541 pushes the sliding sleeve 52 to move synchronously with the square sleeve 54, and the middle of the square sleeve 54 is movably arranged through a driving screw 53, and the driving screw 53 drives the square sleeve 54 to slide along the length direction of the guide rail 5, the driving screw 53 rotates synchronously with the rotating disc 2, so that when the driving screw 53 continuously rotates in a single direction, the square sleeve 54 and the sliding sleeve 52 can move synchronously, when the driving screw 53 reverses and rotates in another direction, the square sleeve 54 first reverses and slides a certain distance, and then the sliding sleeve 52 can move synchronously with the square sleeve 54, when the device is used:

[0038] ①The rotating disc 2 and the driving screw 53 are simultaneously rotated, the rotating disc 2 drives the blade end plate 3 and the vortex blade 4 to rotate synchronously, the driving screw 53 drives the square sleeve 54 and the sliding sleeve 52 to move synchronously, and then drives the laser welding head 61 to move along the radial direction of the blade end plate 3 from the edge of the blade end plate 3 to the center of the blade end plate 3, at this time, the movement track of the laser welding head 61 on the surface of the blade end plate 3 coincides with the vortex through slot 31, and since the initial position of the laser welding head 61 is located on the outer side of the vortex blade 4, the laser welding head 61 can weld and fix the position of the vortex blade 4 on the outer side of the blade end plate 3 when the laser welding head 61 moves;

[0039] ②The end of the outermost position of the scroll blade 4 is called the starting end, and the end of the innermost position of the scroll blade 4 is called the terminal end. The moving track of the laser welding head 61 is: moving along the scroll blade 4 from the starting end of the scroll blade 4 to the terminal end of the scroll blade 4. When the laser welding head 61 moves to the terminal end of the scroll blade 4, the laser welding head 61 is closed, but the blade end plate 3 and the driving lead screw 53 continue to rotate by a certain angle, as shown in FIG. 6. Figure 9 As shown in FIG. 6, the M point and the N point are both the terminal end of the scroll blade 4, but they are located at the outer side and the inner side of the terminal end of the scroll blade 4, respectively. The O point is the center of the blade end plate 3 (i.e. the center of the reference circle of the scroll blade 4). At this time, the laser welding head 61 moves from the M point to the P point (this figure refers to the relative movement track of the laser welding head 61 between the upper surface of the blade end plate 3 and the blade end plate 3);

[0040] ③Then, the blade end plate 3 and the driving lead screw 53 are reversely rotated. At this time, the blade end plate 3 and the scroll blade 4 can immediately reversely rotate, but the driving lead screw 53 reversely rotates first to drive the square sleeve 54 to reversely slide by a certain distance. Until the anti-off flange 541 is attached to the sliding sleeve 52, the square sleeve 54 can reversely slide to drive the sliding sleeve 52 and the laser welding head 61 to reversely move. That is, the reversely moving of the laser welding head 61 is delayed for a certain time compared with the reversely rotating of the blade end plate 3. During this time, since the laser welding head 61 is stationary and the blade end plate 3 is reversely rotated, the movement track of the laser welding head 61 on the upper surface of the blade end plate 3 is: from the P point to the N point (this segment is a circular arc), and then reversely moving along the inner side of the scroll blade 4 until the laser welding head 61 moves to the edge of the blade end plate 3 to realize the welding between the inner side of the scroll blade 4 and the blade end plate 3;

[0041] ④After the scroll blade 4 and the blade end plate 3 are preliminarily welded, the starting end and the terminal end of the scroll blade 4 are reinforced by supplementary welding, and the excess welding material is removed and polished to the surface of the blade end plate 3 to be flat.

[0042] The device sets the welding position of the scroll blade 4 and the blade end plate 3 on the upper surface of the blade end plate 3 (i.e. the side of the blade end plate 3 away from the scroll blade 4), so that the welding work is efficient, the polishing work after welding is convenient, and the welding material is prevented from remaining on the lower surface of the blade end plate 3 to affect the relative movement between the moving scroll and the static scroll of the compressor.

[0043] In order to install the reversing disc 6, the application further has a guide shaft rod 543 fixed at the edge corner of one end face of the square sleeve 54, and the guide shaft rod 543 movably penetrates the adjusting end plate 55, the setting of the guide shaft rod 543 can be used for further guiding the sliding of the adjusting end plate 55, effectively avoiding the inclination of the adjusting end plate 55, and an installation arm 521 is fixedly arranged at one end of the sliding sleeve 52, and the reversing disc 6 is rotatably installed at the lower side of one end of the installation arm 521, and the laser welding head 61 is installed at the lower side of the reversing disc 6, and the setting of the installation arm 521 can install the reversing disc 6 and the laser welding head 61 at the outer side position of the guide rail 5, avoiding the motion interference with the guide rail 5.

[0044] In order to adjust the orientation of the laser welding head 61, the application further has an adjusting groove 62 along the radial direction arranged on the surface of the reversing disc 6, a sliding seat 63 is slidably installed in the inner cavity of the adjusting groove 62, an adjusting cylinder 64 is installed at the outer side of the reversing disc 6 and drives the sliding of the sliding seat 63, the upper end of the laser welding head 61 is fixedly penetrated through the middle part of the sliding seat 63, the adjusting cylinder 64 can drive the sliding seat 63 to slide a certain distance in the inner cavity of the adjusting groove 62, so as to adjust the distance between the upper end of the laser welding head 61 and the center of the reversing disc 6, the end of the laser welding head 61 is located directly below the center of the reversing disc 6, the installation arm 521 is provided with a reversing motor 522 which drives the rotation of the reversing disc 6, and the reversing motor 522 can drive the reversing disc 6 to rotate one hundred and eighty degrees, so as to rotate the laser welding head 61 to the position symmetrical to the initial position, and the advantage of this design is that the laser welding head 61 can be perpendicular to the gap between the outer side wall of the vortex blade 4 and the inner side wall of the vortex channel 31 at an angle of forty-five degrees in the initial position, and after the reversing disc 6 is rotated one hundred and eighty degrees, the laser welding head 61 can be perpendicular to the gap between the inner side wall of the vortex blade 4 and the inner side wall of the vortex channel 31 at an angle of forty-five degrees (as shown in Figure 10 , so as to improve the welding effect.

[0045] In order to ensure the position stability of the sliding sleeve 52, the application further has a hollow cylinder 56 fixed at the other end face of the sliding sleeve 52, a limiting shaft rod 561 movably inserted into the inner cavity of the hollow cylinder 56, a wear-resistant pressing plate 562 fixed at one end of the limiting shaft rod 561, and a compression spring 563 sleeved at the outer side of the limiting shaft rod 561 and tightly pressing the wear-resistant pressing plate 562 against the side face of the guide rail 5, as shown in Figure 3 , and Figure 2As shown, when the wear-resistant pressing plate 562 is pressed against the side surface of the guide rail 5, the friction between the sliding sleeve 52 and the guide rail 5 can be increased, so that the sliding sleeve 52 will not easily deviate from its position when not driven by the square sleeve 54. When the square sleeve 54 slides, the friction between the square sleeve 54 and the sliding sleeve 52 is smaller than the friction between the wear-resistant pressing plate 562 and the guide rail 5, so the square sleeve 54 will not drive the sliding sleeve 52 to move. Only when the anti-disengagement flange 541 or the adjusting end plate 55 is attached to the surface of the sliding sleeve 52, the square sleeve 54 can push the sliding sleeve 52 to move.

[0046] In order to ensure that the blade end plate 3 rotates synchronously with the rotating disc 2, the present application also has two symmetrically distributed protruding portions 32 arranged on the circumferential side of the blade end plate 3, and a rotation-preventing slot 33 is arranged in the middle of the protruding portion 32. The protruding portion 32 and the rotation-preventing slot 33 are structures known in the prior art, and their main function is to prevent the moving scroll from rotating itself when moving, thereby affecting the compression effect of air. The rotating disc 2 is fixedly provided with two symmetrically distributed extension arms 21 on the circumferential side, the extension arm 21 is slidably installed along the radial direction of the support table 1, and the length direction of the extension arm 21 is slidably installed with a clamping rod 7 which is perpendicular to the extension arm 21. The two clamping rods 7 correspond to the two rotation-preventing slots 33 respectively and are movably connected. The device can realize the positioning of the blade end plate 3 by the cooperation between the clamping rod 7 and the rotation-preventing slot 33, thereby ensuring that the rotating disc 2 can drive the blade end plate 3 to rotate synchronously when rotating.

[0047] In order to adapt to blade end plates 3 of different sizes, the present application also has a sliding groove 22 movably arranged in the middle of the extension arm 21 from top to bottom, and a sliding block 25 is slidably arranged in the inner cavity of the sliding groove 22. Figure 6 As shown, the sliding block 25 can slide a certain distance in the inner cavity of the sliding groove 22. The lower end of the clamping rod 7 is movably threaded through the middle of the sliding block 25, and the lower end of the clamping rod 7 is fixed with a polygonal protruding block 72. When the sliding block 25 slides, the distance between the clamping rod 7 and the center of the rotating disc 2 can be adjusted, thereby changing the distance between the two clamping rods 7, so as to position the blade end plates 3 of different sizes.

[0048] In order to adjust the distance between the two clamping rods 7, the application also has a guide boss 23 fixed on the inner wall of both sides of the sliding groove 22, and a guide clamping groove 251 corresponding to the guide boss 23 and adapted to the two side surfaces of the sliding block 25, the cooperation between the guide boss 23 and the guide clamping groove 251 can prevent the sliding block 25 from being separated from the sliding groove 22, and the sleeve ring 26 is fixed on one end surface of the sliding block 25, and the one end of the extension arm 21 is provided with an adjusting screw column 24 through threaded penetration, and the one end of the adjusting screw column 24 is rotatably installed in the inner cavity of the sleeve ring 26. The position of the sliding block 25 can be adjusted by rotating the adjusting screw column 24, so as to adjust the position of the clamping rod 7. In addition, it should be noted that in order to ensure that the center of the blade end plate 3 coincides with the center of the rotating disc 2, the positions of the two sliding blocks 25 should be kept symmetrical when adjusting the position of the sliding block 25. Therefore, the surface of the extension arm 21 can be provided with the scale line known in the prior art, which will not be described here.

[0049] In order to adapt to the blade end plate 3 with different thickness, the application also has a limiting block 71 fixed on the upper end of the clamping rod 7, a supporting ring 73 is arranged between the limiting block 71 and the sliding block 25, the lower surface of the supporting ring 73 is fixed with a nut 74, and the nut 74 is threadedly connected between the upper half of the clamping rod 7. The limiting block 71 and the supporting ring 73 press the upper and lower sides of the blade end plate 3 respectively, the limiting block 71 and the supporting ring 73 clamp the blade end plate 3 from the upper and lower sides of the blade end plate 3, so as to realize the vertical positioning of the blade end plate 3, avoid the position deviation of the blade end plate 3 under the influence of its own gravity, and the setting of the nut 74 can be used to adjust the distance between the limiting block 71 and the supporting ring 73, so as to adapt to the blade end plate 3 with different thickness.

[0050] In order to ensure that the rotating disc 2 rotates more smoothly, the application also has a flexible pad 27 arranged on the upper surface of the rotating disc 2, which is used to avoid the collision between the vortex blade 4 and the rotating disc 2, and can protect the vortex blade 4. A rotating shaft 28 is fixed in the middle of the lower surface of the rotating disc 2, the lower end of the rotating shaft 28 movably penetrates the middle of the supporting table 1, and a bearing 282 is arranged between the rotating shaft 28 and the supporting table 1. A gasket ring 283 is arranged between the rotating disc 2 and the supporting table 1. The rotating shaft 28 can drive the rotating disc 2 to rotate when rotating. The bearing 282 is arranged to reduce the friction between the rotating shaft 28 and the supporting table 1. The gasket ring 283 can be used to reduce the friction between the rotating disc 2 and the supporting table 1.

[0051] In order to control the rotation of the rotating shaft 28 and the driving screw 53, the application further comprises a belt wheel 281 fixed at the lower end of the rotating shaft 28, and a belt arranged outside the belt wheel 281, the belt and the driving screw 53 are both in driving connection with an external transmission box, the transmission box drives the rotating shaft 28 and the driving screw 53 to rotate synchronously, the transmission box is a structure known in the prior art, the rotating shaft 28 and the driving screw 53 rotate synchronously through the transmission box, in addition, the driving screw 53 and the rotating shaft 28 can also be controlled by two power devices respectively, and the two power devices are kept synchronous start and stop.

[0052] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An accurate welding apparatus for compressor fitting machining, characterized by: Include: Supporting table (1), the upper side of the supporting table (1) is rotatably installed with a rotating disc (2), a blade end plate (3) parallel and concentric with the rotating disc (2) is placed above the rotating disc (2), a vortex blade (4) is placed between the blade end plate (3) and the rotating disc (2), a vortex through slot (31) adapted to the vortex blade (4) is provided through the surface of the blade end plate (3), and the upper side of the vortex blade (4) is inserted into the vortex through slot (31); A guide rail (5) is arranged above the blade end plate (3), a sliding sleeve (52) is arranged on the outer side of the guide rail (5), a laser welding head (61) is arranged on the outer side of the sliding sleeve (52), and the end of the laser welding head (61) is arranged obliquely and corresponds to the vortex through slot (31); A square sleeve (54) is movably arranged through the middle of the sliding sleeve (52), and the length of the square sleeve (54) is greater than the width of the sliding sleeve (52), one end of the square sleeve (54) is fixedly connected with a polygon sleeve (542), the outer side of the polygon sleeve (542) is provided with an adjusting end plate (55), a polygon through slot (551) adapted to the polygon sleeve (542) is arranged in the middle of the adjusting end plate (55), the adjusting end plate (55) and the square sleeve (54) are fixedly connected through an adjusting screw (552), the other end of the square sleeve (54) is fixedly connected with an anti-dropping flange (541), a drive lead screw (53) is movably arranged through the middle of the square sleeve (54), and the drive lead screw (53) drives the square sleeve (54) to slide along the length direction of the guide rail (5), and the drive lead screw (53) rotates synchronously with the rotating disc (2).

2. A precision welding apparatus for compressor component fabrication as defined in claim 1, wherein: A guide shaft (543) is fixedly arranged at the edge corner of one end surface of the square sleeve (54), and the guide shaft (543) movably penetrates the adjusting end plate (55), one end of the sliding sleeve (52) is fixedly provided with a mounting arm (521), a reversing disc (6) is rotatably arranged at the lower side of one end of the mounting arm (521), and the laser welding head (61) is arranged on the lower side of the reversing disc (6).

3. A precision welding apparatus for compressor component fabrication as defined in claim 2 wherein: An adjusting groove (62) in the radial direction is arranged on the surface of the reversing disc (6), a sliding seat (63) is slidably arranged in the inner cavity of the adjusting groove (62), an adjusting cylinder (64) for driving the sliding of the sliding seat (63) is arranged on the outer side of the reversing disc (6), the middle of the sliding seat (63) is fixedly penetrated by the upper end of the laser welding head (61), the end of the laser welding head (61) is located directly below the center of the reversing disc (6), and a reversing motor (522) for driving the rotation of the reversing disc (6) is arranged on the mounting arm (521).

4. The precision welding apparatus for compressor accessory machining of claim 3, wherein: A hollow cylinder (56) is fixedly arranged at the other end surface of the sliding sleeve (52), a limiting shaft (561) is movably inserted into the inner cavity of the hollow cylinder (56), a wear-resistant pressing plate (562) is fixedly arranged at one end of the limiting shaft (561), and a compression spring (563) is arranged on the outer side of the limiting shaft (561) and tightly presses the wear-resistant pressing plate (562) against the side surface of the guide rail (5).

5. The precision welding apparatus for compressor accessory machining of claim 4, wherein: The circumferential side of the blade end plate (3) is provided with two symmetrically distributed protruding portions (32), and the middle of the protruding portion (32) is provided with an anti-rotation clamping groove (33), the circumferential side of the rotating disc (2) is fixedly provided with two symmetrically distributed extension arms (21), the extension arm (21) is slidably installed on the length direction of the supporting table (1), the extension arm (21) is perpendicular to the clamping rod (7), and the two clamping rods (7) are respectively corresponding to the two anti-rotation clamping grooves (33) and are movably penetrated and connected.

6. A precision welding apparatus for compressor component fabrication as defined in claim 5 wherein: The middle of the extension arm (21) is provided with a sliding groove (22) penetrating from top to bottom, the inner cavity of the sliding groove (22) is slidably provided with a sliding block (25), the lower end of the clamping rod (7) is movably penetrated in the middle of the sliding block (25) through threads, and the lower end of the clamping rod (7) is fixedly provided with a polygonal protruding block (72).

7. A precision welding apparatus for compressor component fabrication as defined in claim 6 wherein: The two side walls of the sliding groove (22) are fixedly provided with guide protruding blocks (23), the two side surfaces of the sliding block (25) are provided with guide clamping grooves (251) corresponding to and matched with the guide protruding blocks (23), one end surface of the sliding block (25) is fixedly provided with a sleeve ring (26), and one end of the extension arm (21) is provided with an adjusting stud (24) penetrating through threads, and one end of the adjusting stud (24) is rotatably installed in the inner cavity of the sleeve ring (26).

8. A precision welding apparatus for compressor component fabrication as defined in claim 7, wherein: The upper end of the clamping rod (7) is fixedly provided with a limiting block (71), a supporting ring (73) is arranged between the limiting block (71) and the sliding block (25), the lower surface of the supporting ring (73) is fixedly provided with a nut (74), the nut (74) is in threaded connection between the upper half of the clamping rod (7), and the limiting block (71) and the supporting ring (73) are respectively pressed against the upper and lower sides of the blade end plate (3).

9. A precision welding apparatus for compressor component fabrication as defined in claim 8 wherein: The upper surface of the rotating disc (2) is provided with a flexible pad (27), the middle of the lower surface of the rotating disc (2) is fixedly provided with a rotating shaft (28), the lower end of the rotating shaft (28) movably penetrates the middle of the supporting table (1), and a bearing (282) is arranged between the rotating shaft (28) and the supporting table (1), and a gasket ring (283) is arranged between the rotating disc (2) and the supporting table (1).

10. The precision welding apparatus for compressor component fabrication of claim 9, wherein: The lower end of the rotating shaft (28) is fixedly provided with a pulley (281), and a belt is arranged outside the pulley (281), the belt and the driving lead screw (53) are in driving connection with an external transmission box, and the transmission box drives the rotating shaft (28) and the driving lead screw (53) to rotate synchronously.

Images