CN210121735U - Compressor welding system - Google Patents

Abstract

The utility model discloses a compressor welding system, it includes conveyer, initial positioner, concentric positioner and welding set, based on the utility model provides a compressor welding system specifically constitutes, can realize the automation among the compressor welding process, avoids artifical too much participation, can ensure welding quality's reliability, and can effectively improve the welding efficiency of compressor.

Description

Compressor welding system

Technical Field

The utility model relates to a welding field especially relates to a compressor welding system.

Background

As the most advanced third-generation compressor in the prior art, the scroll compressor has the characteristics of energy conservation, high efficiency, low noise, light weight and the like, and has great market demand. Scroll compressor adopts the welding mode to realize linking into an organic whole between end bearing and compressor housing in the manufacture process, need guarantee end bearing and be fixed in the casing in the concentricity between the main bearing among its welding process, the welding process that relates among the prior art needs more artifical the participation usually, seriously influences the welding quality of compressor, is difficult to effectively improve compressor batch production's ability moreover. Therefore, it is necessary to design an automatic welding system which can ensure both mass production and welding quality.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that prior art exists at least, for realizing the above-mentioned utility model purpose, the utility model provides a compressor welding system, its concrete design as follows.

The utility model provides a compressor welding system, the compressor includes that upper and lower both ends are open tube-shape casing, are fixed in the casing and axle center direction with the unanimous base bearing of casing direction of height, set up in the casing with base bearing complex end bearing and connection end bearing and butt extremely shells inner wall is in order to with end bearing supports in bottom bearing support in the casing, the outside projection in casing outside is formed with the information pipe, compressor welding system includes: the conveying device is provided with a conveying table used for conveying the compressor along a first direction, and the conveying device sequentially comprises a first working position and a second working position in the conveying direction of the conveying table; the initial positioning device is positioned at the first working position and comprises a first jacking mechanism for jacking the compressor on the conveying device and a pair of clamping mechanisms which are positioned above the first jacking mechanism and are used for clamping the bottom bearing support and the information pipe respectively after the first jacking mechanism jacks the compressor so as to position the relative position relationship between the bottom bearing support and the shell; the transfer device is positioned at the second working position and comprises a second jacking mechanism and a moving claw mechanism, wherein the second jacking mechanism is used for jacking the positioned compressor on the conveying device, and the moving claw mechanism is positioned above the second jacking mechanism and used for grabbing the compressor after the second jacking mechanism jacks the compressor and transferring the compressor to a second direction different from the first direction; the concentric positioning device is positioned on one side of the conveying device, is used for receiving the compressor transferred by the movable claw mechanism along the second direction, and comprises a bearing base for bearing the compressor and a pressing head which is arranged above the bearing base in an up-and-down mode and drives the axis of the bottom bearing to coincide with the axis of the main bearing when moving downwards; and the welding device is used for welding the bottom bearing support and the shell after the bottom bearing axis and the main bearing axis are superposed so as to solidify the position relation between the bottom bearing and the main bearing.

Furthermore, the conveying device also comprises a tray which is arranged on the conveying table and used for bearing the compressor, and a first stop mechanism and a second stop mechanism which are respectively used for positioning the tray at the first working position and the second working position.

Further, the primary positioning device further comprises a lifting table located right above the first jacking mechanism, and the pair of clamping mechanisms are fixed below the lifting table to ascend or descend synchronously with the lifting table.

Further, the moving claw mechanism comprises a horizontal moving frame which reciprocates along the second direction, a vertical moving frame which is arranged on the horizontal moving frame in a vertically moving mode, and a claw which is arranged on the vertical moving frame and used for grasping or releasing the compressor.

Further, the main bearing and the bottom bearing are respectively provided with a part exposed to the lower end opening and the upper end opening of the shell, and the part of the bottom bearing exposed to the upper end opening of the shell is provided with a cylindrical end part; the bearing pedestal is provided with a support table which is abutted against the lower end of the main bearing when the compressor is carried so as to enable the axis of the main bearing to be vertically oriented, and an axis limiting mechanism which limits the axis position of the main bearing; the pressing head is provided with a positioning seat arranged at the bottom, and the positioning seat is provided with a positioning hole for inserting the cylindrical end part of the bottom bearing when the pressing head moves downwards so as to enable the axis of the bottom bearing to coincide with the axis of the main bearing.

Further, the bottom bearing bracket is connected to the lower side of the cylindrical end part, and the bottom bearing bracket is provided with a first horizontal annular surface formed on the periphery of the cylindrical end part and exposed from the upper end opening of the shell; the pressing head is further provided with a first pressing mechanism used for pressing the first annular surface downwards, the first pressing mechanism comprises a plurality of ejector rods which are distributed on the periphery of the positioning hole and synchronously move up and down, and each ejector rod is in a jacking state of moving downwards, protruding out of the lower end face of the positioning seat and jacking the first annular surface.

The first pressing mechanism further comprises a first connecting block, a power source for driving the first connecting block to move up and down, second connecting blocks arranged below the first connecting block at intervals, a distance limiting piece for connecting the first connecting block and the second connecting block to limit the maximum distance between the first connecting block and the second connecting block, and a first elastic assembly arranged between the first connecting block and the second connecting block in an extruding mode, wherein a plurality of ejector rods penetrate through the positioning seat from bottom to top and are fixed to the second connecting block; when the power source drives the first connecting block to move downwards and the ejector rod is not abutted to the first annular surface, the second connecting block synchronously moves downwards along with the first connecting block and drives the ejector rod to move downwards to be close to the first annular surface; when the power source drives the first connecting block to move downwards and the ejector rod is abutted to the first annular surface, the second connecting block stops moving, and the first elastic assembly contracts to enable the ejector rod to elastically press the first annular surface.

Further, the pressing head is further provided with a second pressing mechanism used for pressing the upper end of the shell when the pressing head moves downwards, and the second pressing mechanism comprises a pressing plate sleeved outside the positioning seat and a second elastic assembly used for keeping the pressing plate to elastically press the upper end of the shell.

Further, the part of the main bearing exposed to the lower end opening of the shell is at least provided with two positioning holes at different positions, and the axle center limiting mechanism is a positioning pin which is arranged on the supporting platform and matched with the two positioning holes on the main bearing.

Further, the main bearing is provided with a second annular surface which is centered on the axis of the main bearing and exposed from the lower end opening of the shell, and the support table is provided with an annular bearing surface which is horizontally arranged and is matched with the second annular surface when bearing the compressor.

Furthermore, the bearing base is also provided with a position adjusting platform which is positioned below the supporting platform and used for adjusting the front and back and left and right positions of the supporting platform.

Further, the concentric positioning device is also provided with a secondary clamping mechanism for clamping the bottom bearing support so as to position the abutting position of the bottom bearing support and the shell.

Further, a plurality of contact positions are provided between the bottom bearing support and the housing, and the welding device has a plurality of welding guns that respectively weld the bottom bearing support and the housing at the plurality of contact positions outside the housing; the welding device is provided with two movably arranged welding gun mounting frames on two sides of the pressing head, a plurality of welding guns are divided into two groups and are respectively mounted on the two welding gun mounting frames, and each welding gun mounting frame is provided with a welding state in which a welding gun head is close to the corresponding abutting position on the welding gun mounting frame to perform welding operation and a non-welding state in which the welding gun head is far away from the corresponding abutting position on the welding gun mounting frame.

The utility model has the advantages that: based on the utility model provides a compressor welding system can realize the automation among the compressor welding process, avoids artifical too much participation, can ensure welding quality's reliability, and can effectively improve the welding efficiency of compressor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is an angled perspective view of a compressor;

FIG. 2 is another perspective view of the compressor;

FIG. 3 is a schematic view of the compressor before entering the first operating position;

FIG. 4 is another schematic view of a portion of the structure of FIG. 3;

FIG. 5 is an enlarged view of a portion a of FIG. 4;

FIG. 6 is a schematic view of the compressor after entering the first operating position;

FIG. 7 is an enlarged view of portion b of FIG. 6;

FIG. 8 is a schematic view of the compressor after entering a second operating position;

FIG. 9 is a schematic view of the compressor at another angle after entering the second operating position;

FIG. 10 is an enlarged view of portion c of FIG. 9;

FIG. 11 is a schematic view of the transfer device transferring the compressor to the concentric positioning device;

FIG. 12 is a first angular schematic view of the moving jaw mechanism;

FIG. 13 is a second angular view of the moving jaw mechanism;

FIG. 14 is a schematic view of the compressor in a position on the concentric positioning device;

FIG. 15 is a schematic view of the concentric positioning apparatus in cooperation with a welding apparatus;

FIG. 16 is a schematic view of the overall structure of the load base;

FIG. 17 is a schematic view showing a state in which the pressing head is mounted on the movable frame;

FIG. 18 is an enlarged view of portion d of FIG. 17;

FIG. 19 is a schematic view showing a state where the compressors are concentrically positioned;

FIG. 20 is a perspective view of the compaction head at one angle;

FIG. 21 is another perspective view of the compaction head;

FIG. 22 is a schematic view of a partial explosion of the compaction head;

FIG. 23 is a cross-sectional view of the compaction head prior to compaction against the compressor;

fig. 24 is a schematic view showing a state of the first pressing mechanism before pressing the compressor;

FIG. 25 is a cross-sectional view of the compaction head after compaction against the compressor;

FIG. 26 is a schematic view of the first compressing mechanism after compressing the compressor;

FIG. 27 is a schematic view of the engagement of the hold down head with the welding device;

FIG. 28 is a first angle view of a portion of the welding apparatus;

fig. 29 is a second angle view showing a part of the structure of the welding apparatus.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a compressor 100 according to the present invention includes a cylindrical shell 11 with upper and lower ends open, a main bearing 12 fixed in the shell 11 and having an axis direction consistent with a height direction of the shell 11, a bottom bearing 13 disposed in the shell 11 and cooperating with the main bearing 12, and a bottom bearing bracket 14 connected to the bottom bearing 13 and abutted to an inner wall of the shell 11 to support the bottom bearing 13 in the shell 11, wherein an information pipe 110 is formed in the outer side of the shell 11 and protrudes outwards. The compressor 100 referred to in this embodiment is typically a scroll compressor.

The utility model discloses in relevant compressor welding system include: a transfer device 200, a primary positioning device 300, a transfer device 400, a concentric positioning device 500, and a welding device 600. More specifically, reference may be made to the following description.

Referring to fig. 3, the conveying device 200 according to the present embodiment has a conveying table 21 for conveying the compressor 100 along a first direction, and the conveying device 200 includes a first operating position and a second operating position (neither shown) in the conveying direction of the conveying table 21. It will be appreciated that the first direction in relation to the present invention is in accordance with the X-axis direction shown in figure 3.

Further, as shown in fig. 3, the transfer device 200 further includes a tray 22 placed on the transfer table 21 for carrying the compressor 100. The tray 22 generally has a carrying portion (not shown) matched with the lower end of the compressor 100 to carry the compressor 100, and the compressor 100 can move along the conveying direction of the conveying table 21 to enter the first working position or the second working position based on the arrangement of the tray 22.

Referring to fig. 6, the primary positioning device 300 according to the present embodiment is located at the first working position, and includes a first jacking mechanism 31 for jacking up the compressor 100 on the conveying device 200, and a pair of clamping mechanisms located above the first jacking mechanism 31.

As shown in fig. 7, the pair of clamping mechanisms includes a first clamping mechanism 321 and a second clamping mechanism 322, wherein the first clamping mechanism 321 has a first clamping head 3210 for clamping a specific position of the bottom bearing bracket 14, and the second clamping mechanism 322 has a second clamping head 3220 for clamping a specific position of the information pipe 110. After the compressor 100 is jacked up by the first jacking mechanism, the relative position relationship between the bottom bearing support 14 and the shell 11 can be positioned by the clamping action of the first clamping head 3210 and the second clamping head 3220 on the bottom bearing support 14 and the information pipe 100, namely, the primary positioning function is realized.

Further, the primary positioning device 300 according to the present embodiment further includes a lifting table located directly above the first jacking mechanism 31, and a pair of clamping mechanisms is fixed below the lifting table to be lifted or lowered synchronously with the lifting table. Referring to fig. 6 and 7, the lifting platform according to the embodiment is a movable plate 33 disposed to be lifted, the first clamping mechanism 321 and the second clamping mechanism 322 are both fixed to a lower side of the movable plate 33, in a specific implementation process, the movable plate 33 is further provided with a cylinder 331, and a piston rod 330 of the cylinder 331 is connected to the movable plate 33 to achieve the lifting operation of the movable plate 33.

In this embodiment, when the initial positioning between the bottom bearing support 14 and the housing 11 is required, the first clamping mechanism 321 and the second clamping mechanism 322 enter the proper clamping position through the descending action of the lifting platform; after the initial positioning between the bottom bearing bracket 14 and the shell 11 is completed, the first clamping mechanism 321 and the second clamping mechanism 322 can be lifted and withdrawn from the clamping position, so as to avoid interfering with the next operation of the compressor 100.

In one embodiment, the first lift mechanism 31 has a carrier plate (not shown) that can be raised above the upper surface of the conveying table 21 and lowered below the upper surface of the conveying table 21, and the carrier plate can be driven by a cylinder to perform the raising or lowering operation. And in particular will not be described further herein.

Referring to fig. 6 and 8, the transfer device 400 in this embodiment is located at the second working position, and includes a second lifting mechanism 41 for lifting the positioned compressor 100 on the conveying device 200, and a moving claw mechanism 42 located above the second lifting mechanism 41.

As shown in fig. 9, 10, and 11, the moving claw mechanism 42 according to the present embodiment is configured to grasp the compressor 100 and shift the compressor 100 in the second direction after the second jacking mechanism 41 jacks up the compressor 100; it is easy to know that the second direction is different from the first direction, and in this embodiment, the second direction is perpendicular to the first direction, i.e. the second direction is the same as the Y-axis direction.

As further shown in fig. 12 and 13, the moving claw mechanism 42 according to the present embodiment includes a horizontal moving frame 421 reciprocally moving in the second direction, a vertical moving frame 422 provided on the horizontal moving frame 421 to move up and down, and a claw 43 mounted on the vertical moving frame 422 for grasping or releasing the compressor 100.

More specifically, the transfer device 400 according to the present embodiment further includes a frame 43 disposed at the second working position, a rail 430 extending along the second direction is fixed on the top of the frame 43, and the horizontal moving frame 421 includes a moving plate 4210 cooperating with the rail 430 to allow the horizontal moving frame 421 to move along the second direction. In this embodiment, a rack 431 is fixed on the top of the frame 43 and extends along the track 430, and a gear 4211 engaged with the rack 431 and a gear driving motor 4212 for driving the gear 4211 to rotate are provided on the moving plate 4210. When the gear driving motor 4212 operates, the moving jaw mechanism 42 can move in the second direction, so that the compressor 100 can be transported.

The vertical moving frame 422 according to the present embodiment is disposed on one side of the horizontal moving frame 421 close to the concentric positioning device 500, the horizontal moving frame 421 is provided with a vertically oriented screw rod 4220 and a screw rod driving motor 4221 for driving the screw rod 4220 to rotate, and the vertical moving frame 422 has a nut (shown in the figure) in threaded fit with the screw rod 4220. When the screw driving motor 4221 is operated, the lifting or lowering of the position of the claw 43 can be achieved, so that the compressor 100 on the tray 22 can be lifted or the compressor 100 caught by the claw 43 can be placed on the tray 22.

The claw 43 according to the present embodiment is driven by a cylinder, and can grip or release the housing 11 of the compressor 100, and in order to avoid damage to the housing 11, a buffer portion is generally fixed to a portion of the inner side of the claw 43 for abutting against the housing 11, and the hardness of the buffer portion is lower than the hardness of the material of the housing 11.

As for the structure of the second jacking mechanism 41 in the present embodiment, reference may be made to the structure of the first jacking mechanism 31, which is not described herein again. In addition, in the embodiment, referring to fig. 8, the lifting table constituting the primary positioning device 300 may be mounted on the frame 43.

As shown in fig. 3, 14 and 15, the concentric positioning device 500 according to the present embodiment is located on the conveyor 400 side, receives the compressor 100 transferred in the second direction by the movable claw mechanism 42, and includes a load base 51 for loading the compressor 100, and a pressing head 52 which is provided above the load base 51 to move up and down and drives the axis of the bottom bearing 13 to coincide with the axis of the main bearing 12 when moving down.

Referring to fig. 14, the welding apparatus 600 according to the present embodiment is used to weld the bottom bearing bracket 14 and the shell 11 after the axial center of the bottom bearing 13 coincides with the axial center of the main bearing 12 to solidify the positional relationship between the bottom bearing 13 and the main bearing 12.

Based on the utility model provides a compressor welding system can realize the automation among the compressor welding process, avoids artifical too much participation, can ensure welding quality's reliability, and can effectively improve the welding efficiency of compressor. For better understanding of the present invention, the following will be further developed with respect to the specific configuration of the compressor welding system according to the present embodiment.

In the implementation process of the present embodiment, in order to perform corresponding operations on the compressor 100 at the first working position and the second working position respectively, the conveying device 200 of the present invention further has a first stopping mechanism and a second stopping mechanism for positioning the tray 22 at the first working position and the second working position. In this embodiment, as shown in fig. 4 and 5, the first stopping mechanism includes a stopping rod 23 disposed at the front side of the first jacking mechanism 31, and the stopping rod 23 can be controlled by an air cylinder. Specifically, when the tray 22 brings the compressor 100 to the first working position, the cylinder driving stop rod 23 is jacked up to abut against the front side of the tray 22, so that the compressor 100 is integrally positioned to the first working position; then, after the primary positioning device 300 completes the positioning between the bottom bearing support 14 and the housing 11, the cylinder may drive the stop rod 23 to descend, so that the primarily positioned compressor 100 continues to be conveyed toward the second working position. The second stop mechanism in this embodiment is disposed at the front side of the second jacking mechanism 41, and the specific structure and operation mode thereof can refer to the first stop mechanism, and the second stop mechanism is not further developed.

It is understood that, in the present embodiment, after the tray 22 is stopped, the conveying table 21 of the conveying device 200 may be kept in the operating state; in addition, in other embodiments of the present invention, the first and second stopper mechanisms are not limited to the structures shown in the present embodiment.

As further shown in fig. 1 and 2, the main bearing 12 and the bottom bearing 13 have portions exposed to a lower end opening 112 and an upper end opening 111 of the housing 11, respectively; wherein, the part of the bottom bearing 13 exposed to the upper end opening 111 of the housing 11 has a cylindrical end 130. As shown in fig. 16, the mount base 51 constituting the concentric positioning device 500 includes a support base 511 which abuts against the lower end of the main bearing 12 so that the axial center of the main bearing 12 is oriented vertically when the compressor 100 is mounted, and an axial center restricting mechanism which restricts the axial center position of the main bearing 12. As shown in fig. 19 and 21, the clamp head 52 has a positioning seat 521 provided at the bottom, the positioning seat 521 has a positioning hole 5210 into which the cylindrical end 130 of the bottom bearing 13 is inserted when the clamp head 52 moves downward, and the axis of the bottom bearing 13 can be aligned with the axis of the main bearing based on the fit between the positioning hole 5210 and the cylindrical end 130 of the bottom bearing 13. In a specific implementation, to facilitate the insertion of the cylindrical end 130 of the bottom bearing 13 into the positioning hole 5210, the lower port of the positioning hole 5210 is flared.

Referring to fig. 1, the bottom bearing bracket 14 is connected to the lower side of the cylindrical end portion 130, and the bottom bearing bracket 14 has a first annular face 140 formed on the periphery of the cylindrical end portion 130 exposed from the upper end opening 111 of the housing 11 and having a horizontal shape. The pressing head 52 according to the present embodiment further includes a first pressing mechanism 522 for pressing the first annular surface downward, and as shown in fig. 21 and 26, the first pressing mechanism 522 in the present embodiment includes a plurality of top rods 5221 distributed around the positioning hole 5210 and synchronously moving up and down, and each top rod 5221 has a pressing state moving downward to protrude beyond the lower end surface of the positioning seat 521 to press the first annular surface 140; referring to fig. 25, the top bar 5221 is in a pressing state, and when the compressor 100 is pressed, the top bar 5221 protruding beyond the lower end surface of the positioning seat 521 can press the first annular surface 140, so that the bottom bearing support 14 can support and position the bottom bearing 13 at the current position.

In this embodiment, the first pressing mechanism 522 has three top rods 5221 uniformly distributed around the positioning hole 5210, and the bottom ends of the top rods 5221 are provided with pressing blocks 5220 for directly abutting against the first annular surface 140. It is understood that in other embodiments of the present invention, the number and the specific shape of the top rods 5221 can be adjusted according to the requirement.

In one embodiment, the first pressing mechanism 522 further has a first elastic member for holding the plurality of pins 5210 elastically against the first annular surface 140. In this way, hard contact between the post 5221 and the first annular surface 140 can be avoided, and the compressor 100 is effectively prevented from being damaged.

More specifically, as shown in fig. 23 and 24, the first pressing mechanism 522 further includes a first connection block 5223, a power source 5224 driving the first connection block 5223 to move up and down, a second connection block 5222 disposed at an interval below the first connection block 5223, and a distance limiting member connecting the first connection block 5223 and the second connection block 5222 to limit a maximum distance therebetween. A plurality of lift rods 5221 penetrate through the positioning seat 521 from bottom to top and are all fixed to the second connection block 5222, and the elastic member in the embodiment is a spring 5226 squeezed between the first connection block 5223 and the second connection block 5222.

Based on the specific structure of the first pressing mechanism 522, when the power source 5224 drives the first connection block 5223 to move downward and the top rod 5221 is not abutted to the first annular surface 140, the second connection block 5222 moves downward synchronously with the first connection block 5223 and drives the top rod 5221 to move downward to approach the first annular surface 140, and at this time, the state of the first pressing mechanism 522 can be referred to fig. 23 and 24. When the power source 5224 drives the first connecting block 5223 to move downward and the top rod 5221 is abutted to the first annular surface 140, the second connecting block 5222 stops moving, the spring 5226 contracts, so that the top rod 5221 elastically presses the first annular surface 140, and at this time, the state of the first pressing mechanism 522 can be referred to fig. 25 and 26.

In a specific implementation, the power source 5224 is a cylinder, and the upper side of the first linkage block 5223 is connected to a piston rod that moves up and down the cylinder.

Referring to fig. 23, 24, 25 and 26, the distance limiting member in the present embodiment includes a plurality of pins 5225 fixed to the second connecting block 5222 after penetrating the first connecting block 5223 from top to bottom, and the radius of the top end of each pin 5225 is larger than the radius of the first connecting block 5223 at the minimum position of the through hole for the pin 5225 to pass through. As such, the first connection block 5223 does not disengage from the pin 5225, so that the first connection block 5223 has the greatest distance from the second connection block 5222. As a preferred embodiment of this embodiment, the plurality of pins 5225 are uniformly distributed around the central axis of the positioning hole 5210.

In addition, in order to limit the deformation direction of the spring 5226 to a vertical direction, as a preferred embodiment of the present embodiment, a plurality of springs 5226 constituting the first elastic assembly are respectively sleeved on a plurality of pin shafts 5225.

It is understood that the first pressing mechanism 522 further has a guide member for limiting the movement of the first connection block 5223 and the second connection block 5222 in the vertical direction, which will not be described in detail.

More specifically, the pressing head 52 according to the present embodiment further includes a cylindrical mounting seat 524 disposed above the positioning seat 521 for fixing the positioning seat 521, and the first pressing mechanism 522 is disposed in the mounting seat 524. The pressing head 52 according to the present embodiment further includes a support frame 525 fixed to the top of the mounting base 524 for fixing the power source 5224, the support frame 525 includes a plurality of vertical rods 5252 fixedly disposed with respect to the mounting base 524 and a mounting plate 5251 fixed to the plurality of vertical rods 5252, in the present embodiment, the cylinder body of the cylinder constituting the power source 5224 is fixed to the mounting plate 5251,

the pressing head 52 in this embodiment further has a second pressing mechanism 523 for pressing the upper end of the housing 11 when moving downward, so that the housing 11 of the compressor 100 can be fixed before welding. As shown in fig. 19, 20 and 22, the second pressing mechanism 523 includes a pressing plate 5231 sleeved outside the positioning seat 521 and a second elastic component 5232 for keeping the pressing plate 5231 elastically pressed against the upper end of the housing 11.

In this embodiment, the second elastic component 5232 includes a plurality of elastic retractable tubes 5232 distributed around the periphery of the positioning seat 521, as shown in fig. 20 and 22, each elastic retractable tube 5232 has a first tube 52321 and a second tube 52322 that are relatively telescopically arranged, a spring 52320 is disposed in the elastic retractable tube 5232 in an extruding manner, and two ends of the spring are respectively fixed to the pressing plate 5231 and the mounting seat 524. When pressure plate 5231 is pressed against the upper end of housing 11, springs 52320 can flex to avoid hard contact between pressure plate 5231 and housing 11.

Referring to fig. 2, the portion of the main bearing 12 exposed to the lower opening 112 of the housing 11 has at least two positioning holes 121 at different positions. As shown in fig. 16, the axis center regulating means according to the present embodiment is a positioning pin 512 provided on the support base 511 and engaged with the two positioning holes 121 of the main bearing 12. The main bearing 12 is generally provided with four positioning holes 121 distributed in a rectangular shape at a portion exposed to the lower opening 112 of the housing 11, and two positioning pins 512 on the support base 511 in this embodiment are respectively matched with a pair of positioning holes 121 on a diagonal line of the rectangular shape. Based on the matching of the positioning pin 512 and the positioning hole 121, the axial center position of the main bearing 12 of the compressor 100 can be defined at a predetermined position.

As further shown in connection with fig. 2, the main bearing 12 also has a second annular surface 122 centered on its axial center and exposed by the lower end opening 112 of the housing 11. Referring to fig. 16, the supporting table 151 has an annular bearing surface 5111 disposed horizontally and engaged with the second annular surface 122 when carrying the compressor 100. Since the annular bearing surface 5111 is horizontal, when it is completely attached to the second annular surface 122, the axial direction of the main bearing 12 of the compressor 100 can be oriented vertically.

Referring to fig. 16, in order to confirm that the annular bearing surface 5111 is completely fitted to the second annular surface 122, in the present embodiment, a plurality of air gap holes 5110 are uniformly distributed on the annular bearing surface and cooperate with an air gap detection device (not shown) to detect the fitting degree of the second annular surface 122 to the annular bearing surface 5111.

In the implementation process, in order to match the subsequent welding process of the welding device 600, as shown in fig. 16 and 19, the bearing base 51 in this embodiment further has a conductive ring 513 elastically abutting against the lower end of the shell 11 when bearing the compressor 100. In a specific implementation, the elastic supporting force of the conductive ring 513 on the compressor 100 is provided by a plurality of elastic supporting members 514 distributed on the lower side of the conductive ring 513, and a specific structure of the elastic supporting members 514 can refer to the structure of the elastic telescopic cylinder 5232, which is not described herein again.

In addition, the susceptor 51 in this embodiment further includes a position adjusting table 515 located below the support table 511 for adjusting the front-back and left-right positions of the support table 511. Based on the setting of the position adjusting table 515, the proper positional relationship between the supporting table 511 and the pressing head 52 can be ensured by the position adjustment of the supporting table 511, so as to satisfy the concentric adjustment of the main bearing 12 and the bottom bearing 13 by the concentric positioning device 500.

Referring to fig. 16, the position adjustment table 515 of the present embodiment includes two first position adjustment plates 5151 and two second position adjustment plates 5152 stacked one on another and movable in different directions to adjust the positions of the support tables 511, and the position adjustment table 515 further includes a plurality of adjustment members 5153 for adjusting the positions of the first position adjustment plates 5151 and the second position adjustment plates 5152. In a specific implementation process, adjusting pieces 5153 are distributed at two ends of each position adjusting direction of the first position adjusting plate 5151 and the second position adjusting plate 5152, and the adjusting pieces 5153 push the first position adjusting plate 5151 or the second position adjusting plate 5152 through bolts to realize position adjustment of the corresponding adjusting plates.

Referring to fig. 15, the concentric compressor positioning device 600 in the present embodiment further includes a base mounting table 53 for mounting the bearing base 51, a vertical beam 54 fixed to a side of the base mounting table 53, and a moving frame 55 vertically moving and disposed on a side of the vertical beam 54 facing the bearing base 53 for fixing the pressing head 52. As further shown in fig. 17 and 20, the movable frame 55 in this embodiment has a fixing plate 550, and the pressing head 52 is fixed to the fixing plate 550 by a mounting seat 524.

As shown in fig. 17, 18, 19, and 21, the concentric positioner 500 in this embodiment further includes a secondary clamping mechanism 56 that clamps the bottom bearing holder 14 to position the position where the bottom bearing holder 14 abuts against the housing 11. In one embodiment, the secondary clamping mechanism 56 is fixed to the fixing plate 550 and has a clamp 560 for clamping a specific position of the bottom bearing bracket 14, and the pressing plate 5231 has a relief area 5230 for allowing the clamp to enter the interior of the housing 11.

While the bottom bearing bracket 14 and the casing 11 usually have a plurality of contact positions therebetween, the welding apparatus 600 according to the present embodiment includes a plurality of welding guns for welding the bottom bearing bracket 14 and the casing 11 at the plurality of contact positions, respectively, outside the casing 11, and as shown in fig. 1 and 2, the welding spots 15 formed in the compressor 100 by the welding apparatus 600 are located outside the casing 11. Referring to fig. 27, the welding apparatus 600 of the present embodiment has a first welding unit 61 and a second welding unit 62 respectively disposed on both sides of the pressing head 52, and a plurality of welding guns are divided into two groups and respectively belong to the two welding units.

Referring to fig. 28 and 29, the first welding unit 61 of the welding apparatus 600 includes a movably disposed torch mounting frame 610, a group of torches is mounted to the torch mounting frame 610, and the torch mounting frame 610 has a welding state in which the tips of the torches are moved to respective abutting positions on the torch mounting frame 610 to perform a welding operation and a non-welding state in which the tips of the torches are moved away from the respective abutting positions on the torch mounting frame 610.

In an embodiment, the welding gun mounting bracket 610 is rotatably disposed on the lower side of the fixing plate 550 around a vertical rotating shaft L, and the set of welding guns mounted to the welding gun mounting bracket 610 includes two welding guns, i.e., a first welding gun 611 and a second welding gun 612, and when the welding gun mounting bracket 610 rotates, the tips 6110 of the first welding gun 611 and the tips 6120 of the second welding gun 612 can be close to or far from corresponding abutting positions between the bottom bearing support 14 and the housing 11. In a preferred embodiment, referring to fig. 27, a pin 613 is also provided on the fixing plate 550 to lock the position of the torch mounting frame 610 in a welding state.

The specific structure of the second welding unit 62 in this embodiment may refer to the structure of the first welding unit, and details thereof are not repeated herein.

Further, after the welding device 600 completes the welding and fixing between the housing 11 and the bottom bearing bracket 14, the compressor 100 may be transferred again to the transfer table 21 of the transfer device 200 by the transfer device 400, and then transferred to the next station.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Claims (13)

1. The utility model provides a compressor welding system, the compressor includes that upper and lower both ends are open tube-shape casing, are fixed in the casing and axle center direction with the unanimous base bearing of casing direction of height, set up in the casing with base bearing complex end bearing and connection end bearing and butt extremely shells inner wall is in order to incite somebody to action end bearing supports in the bottom bearing support in the casing, the outside projection in casing outside is formed with the information pipe, its characterized in that, compressor welding system includes:

the conveying device is provided with a conveying table used for conveying the compressor along a first direction, and the conveying device sequentially comprises a first working position and a second working position in the conveying direction of the conveying table;

the initial positioning device is positioned at the first working position and comprises a first jacking mechanism for jacking the compressor on the conveying device and a pair of clamping mechanisms which are positioned above the first jacking mechanism and are used for clamping the bottom bearing support and the information pipe respectively after the first jacking mechanism jacks the compressor so as to position the relative position relationship between the bottom bearing support and the shell;

the transfer device is positioned at the second working position and comprises a second jacking mechanism and a moving claw mechanism, wherein the second jacking mechanism is used for jacking the positioned compressor on the conveying device, and the moving claw mechanism is positioned above the second jacking mechanism and used for grabbing the compressor after the second jacking mechanism jacks the compressor and transferring the compressor to a second direction different from the first direction;

the concentric positioning device is positioned on one side of the conveying device, is used for receiving the compressor transferred by the movable claw mechanism along the second direction, and comprises a bearing base for bearing the compressor and a pressing head which is arranged above the bearing base in an up-and-down mode and drives the axis of the bottom bearing to coincide with the axis of the main bearing when moving downwards;

and the welding device is used for welding the bottom bearing support and the shell after the bottom bearing axis and the main bearing axis are superposed so as to solidify the position relation between the bottom bearing and the main bearing.

2. The compressor welding system of claim 1, wherein the conveyor further comprises a tray disposed on the conveyor table for carrying the compressor, and first and second stop mechanisms for positioning the tray in the first and second operating positions, respectively.

3. The compressor welding system of claim 1, wherein the primary positioning device further comprises a lifting table directly above the first jacking mechanism, and the pair of clamping mechanisms are fixed below the lifting table to synchronously ascend or descend with the lifting table.

4. The compressor welding system of claim 1, wherein the moving jaw mechanism comprises a horizontal moving frame reciprocally moving in the second direction, a vertical moving frame disposed up and down on the horizontal moving frame, and a jaw mounted on the vertical moving frame for grasping or releasing the compressor.

5. The compressor welding system according to any one of claims 1 to 4, wherein the main bearing and the bottom bearing have portions exposed to the shell at a lower end opening and an upper end opening, respectively, and the portion of the bottom bearing exposed to the shell at the upper end opening has a cylindrical end; the bearing pedestal is provided with a support table which is abutted against the lower end of the main bearing when the compressor is carried so as to enable the axis of the main bearing to be vertically oriented, and an axis limiting mechanism which limits the axis position of the main bearing; the pressing head is provided with a positioning seat arranged at the bottom, and the positioning seat is provided with a positioning hole for inserting the cylindrical end part of the bottom bearing when the pressing head moves downwards so as to enable the axis of the bottom bearing to coincide with the axis of the main bearing.

6. The compressor welding system of claim 5, wherein the bottom bearing support is connected to an underside of the cylindrical end portion, the bottom bearing support having a first annular face formed on a periphery of the cylindrical end portion exposed by the housing upper end opening and horizontal; the pressing head is further provided with a first pressing mechanism used for pressing the first annular surface downwards, the first pressing mechanism comprises a plurality of ejector rods which are distributed on the periphery of the positioning hole and synchronously move up and down, and each ejector rod is in a jacking state of moving downwards, protruding out of the lower end face of the positioning seat and jacking the first annular surface.

7. The compressor welding system of claim 6, wherein the first pressing mechanism further comprises a first connecting block, a power source for driving the first connecting block to move up and down, a second connecting block arranged below the first connecting block at intervals, a distance limiting member for connecting the first connecting block and the second connecting block to limit the maximum distance between the first connecting block and the second connecting block, and a first elastic assembly arranged between the first connecting block and the second connecting block in an extruding manner, wherein a plurality of push rods penetrate through the positioning seat from bottom to top and are fixed to the second connecting block; when the power source drives the first connecting block to move downwards and the ejector rod is not abutted to the first annular surface, the second connecting block synchronously moves downwards along with the first connecting block and drives the ejector rod to move downwards to be close to the first annular surface; when the power source drives the first connecting block to move downwards and the ejector rod is abutted to the first annular surface, the second connecting block stops moving, and the first elastic assembly contracts to enable the ejector rod to elastically press the first annular surface.

8. The compressor welding system of claim 5, wherein the clamping head further comprises a second clamping mechanism for clamping the upper end of the housing during the downward movement, the second clamping mechanism comprising a pressing plate sleeved outside the positioning seat and a second elastic assembly for keeping the pressing plate elastically pressed against the upper end of the housing.

9. The compressor welding system of claim 5, wherein said main bearing has at least two locating holes at different locations exposed to said shell lower opening, and wherein said axis center defining mechanism is a locating pin disposed on said support platform that mates with said two locating holes on said main bearing.

10. The compressor welding system of claim 5, wherein said main bearing further includes a second annular surface centered on said axial center thereof and exposed by said shell lower end opening, said support platform including an annular bearing surface disposed horizontally and cooperating with said second annular surface when carrying said compressor.

11. The compressor welding system of claim 5, wherein the load base further comprises a position adjustment stage positioned below the support stage for adjusting the forward-rearward and side-to-side position of the support stage.

12. The welding system of claim 1, wherein the concentric positioning device further comprises a secondary clamping mechanism that clamps the bottom bearing support to position the bottom bearing support in abutment with the housing.

13. The welding system of claim 12, wherein the bottom bearing support and the housing have a plurality of abutment positions therebetween, and wherein the welding device has a plurality of welding guns that respectively weld the bottom bearing support and the housing at the plurality of abutment positions outside the housing; the welding device is provided with two movably arranged welding gun mounting frames on two sides of the pressing head, a plurality of welding guns are divided into two groups and are respectively mounted on the two welding gun mounting frames, and each welding gun mounting frame is provided with a welding state in which a welding gun head is close to the corresponding abutting position on the welding gun mounting frame to perform welding operation and a non-welding state in which the welding gun head is far away from the corresponding abutting position on the welding gun mounting frame.

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