CN111872657A - Machining device and machining method suitable for assembling inverter shell - Google Patents
Machining device and machining method suitable for assembling inverter shell Download PDFInfo
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- CN111872657A CN111872657A CN202010663418.6A CN202010663418A CN111872657A CN 111872657 A CN111872657 A CN 111872657A CN 202010663418 A CN202010663418 A CN 202010663418A CN 111872657 A CN111872657 A CN 111872657A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
Abstract
The invention discloses a processing device and a processing method suitable for assembling an inverter shell, belonging to the technical field of inverter processing. The processing device suitable for assembling the inverter shell is simple in structure, convenient and fast to assemble and operate, the processing method for assembling by using the processing device is simple and convenient, accurate positioning and reliable clamping of the inverter shell can be achieved, assembling of pins and assembling of pipe fittings can be automatically and quickly completed after positioning and clamping are completed, assembling precision and assembling efficiency of the inverter shell of the new energy automobile are effectively improved, assembling cost of the inverter shell is reduced, and the processing device has good application prospect and popularization value.
Description
Technical Field
The invention belongs to the technical field of inverter processing, and particularly relates to a processing device and a processing method suitable for assembling an inverter shell.
Background
With the continuous development of energy-saving and environment-friendly technologies, the research and application of new energy automobiles are more and more mature. For a new energy automobile, certain differences exist between the new energy automobile and a traditional fuel automobile in terms of driving principle and specific structure, so that the existing process for preparing the traditional fuel automobile is often difficult to be accurately suitable for processing corresponding parts of the new energy automobile, such as processing of an inverter shell.
When carrying out new energy automobile inverter casing assembly, often need assemble pin and pipe fitting on the inverter casing after the processing, when actual assembly, just need carry out the clamping to the inverter casing. At present, the assembly of pins and pipe fittings on the inverter shell is usually carried out on two sets of clamping tools, namely the inverter shell needs to be clamped at least twice to complete the corresponding assembly. In addition, the existing process for assembling the pins and the pipe fittings is complicated, the clamping and positioning accuracy is poor, the assembling efficiency is low, the preparation efficiency of the inverter shell is greatly limited, and the preparation cost of the inverter shell is influenced.
Disclosure of Invention
Aiming at one or more of the defects or the improvement requirements in the prior art, the invention provides a processing device and a processing method suitable for assembling an inverter shell, which can effectively realize the quick and accurate positioning and clamping of the inverter shell, realize the accurate assembly of pins and pipe fittings on the inverter shell, ensure the efficiency and the accuracy of the processing of the inverter shell and reduce the preparation cost of the inverter shell.
In order to achieve the above object, one aspect of the present invention provides a processing apparatus suitable for assembling an inverter housing, including a workbench, and further including a bearing block, a positioning block, a pin mounting unit, a pressing claw and a pipe fitting assembly, which are arranged on the workbench;
the bearing blocks are arranged at intervals, and the top surfaces of the bearing blocks are positioned on the same horizontal plane and used for supporting the machined end surface of a workpiece;
the positioning block is arranged corresponding to the installed pins on the processing end face, a positioning hole is vertically formed in the middle of the positioning block, and after the processing end face is placed on the bearing block, the installed pins can be respectively embedded into the corresponding positioning holes;
the set number and the set position of the pin mounting units correspond to the processing holes of the pin holes to be assembled on the processing end face after positioning and clamping; the pin installation unit is provided with a pin accommodating hole which is vertically arranged and an assembly component which is arranged at the bottom of the pin accommodating hole; the pin to be assembled can be coaxially accommodated in the pin accommodating hole and can be driven by the assembling component to vertically lift;
the pressing claws are arranged on the workbench at intervals along the circumferential direction and are used for pressing the positioned workpiece on each bearing block and enabling the processing hole of the pipe fitting to be assembled on the workpiece to be coaxially aligned with the pipe fitting clamped on the pipe fitting assembly; correspondingly, the pipe fitting assembly is arranged on the workbench and used for clamping the pipe fitting to be assembled and driving the pipe fitting to move along the axial direction, and then coaxial assembly of the pipe fitting in the pipe fitting machining hole to be assembled is achieved.
As a further improvement of the invention, the workbench is also provided with an auxiliary supporting component which is used for abutting against the inner peripheral wall surface of the workpiece at the assembling position of the pipe fitting when the pipe fitting is assembled.
As a further improvement of the invention, the auxiliary supporting component comprises a supporting block, a jacking block and a telescopic unit;
the supporting block comprises a first supporting part and a second supporting part which form a certain angle with each other, and a mounting block is arranged corresponding to the mounting of the supporting block; and is
The jacking block is connected to the end part of the second branch part in rotating connection, and can be close to or far away from the inner peripheral wall surface of the workpiece under the condition that the second branch part rotates around a shaft; and
the telescopic unit is provided with a telescopic end capable of vertically telescoping, the telescopic end is arranged corresponding to the end part of the first support part, and the telescopic end can act on the end part of the first support part after vertically rising and drive the supporting block to rotate around the shaft, so that the jacking block turns to the inner peripheral wall surface of the workpiece.
As a further improvement of the invention, a spring is vertically arranged below the second branch part; one end of the spring is fixed on the top of the mounting block, and the other end of the spring is connected with or abutted against the bottom surface of the second branch part.
As a further improvement of the invention, the auxiliary support component further comprises a plug; one end of the plug is connected to the telescopic mechanism and can be driven by the telescopic mechanism to horizontally and reciprocally extend and retract; and the other end of the plug can act on the end part of the first supporting part after horizontal movement, and the position of the jacking block is locked when the jacking block is far away from the inner peripheral wall surface of the workpiece.
As a further improvement of the invention, the plug and the supporting block are arranged in a staggered manner, and the end part of the first branch part is provided with a stress block; one end of the stress block is fixedly connected with the first branch part, and the other end of the stress block extends to the front of the plug, so that the plug can be tightly propped against or far away from the stress block after horizontal movement.
As a further improvement of the present invention, the pipe fitting assembly comprises a pipe fitting clamp and a pipe fitting ejection mechanism;
the pipe fitting clamp is used for coaxially clamping the pipe fitting to be assembled, is arranged on the pipe fitting ejection mechanism and can carry out reciprocating motion in the axial direction under the driving of the pipe fitting ejection mechanism.
As a further improvement of the invention, a plurality of limiting blocks are arranged on the workbench at intervals along the circumferential direction and used for limiting the periphery of the workpiece after clamping.
In another aspect of the present invention, a machining method for assembling an inverter housing is provided, which is implemented by using the machining apparatus, and includes the following steps:
(1) the pins to be assembled are accommodated in the corresponding pin accommodating holes, and all the assembling components are positioned at the bottoms of the pin accommodating holes; meanwhile, clamping the pipe fitting to be assembled on the pipe fitting assembly;
(2) placing a workpiece to be assembled on each bearing block in a mode that the processing end face of the workpiece faces downwards, and enabling each installed pin on the processing end face to be respectively embedded into the positioning hole in the corresponding positioning block to realize the positioning of the workpiece;
(3) controlling each pressing claw to work, and pressing the workpiece on each bearing block to realize positioning and clamping of the workpiece;
(4) controlling the assembling components to work, so that the pins to be assembled are respectively pushed into the corresponding processing holes on the processing end face by the assembling components;
(5) controlling the pipe fitting assembly to work, so that the pipe fitting to be assembled is jacked into the corresponding machining hole in the workpiece until the pipe fitting is assembled in place;
(6) the clamping of the pipe fitting assembly on the end part of the pipe fitting which is assembled in place is released, and the pipe fitting assembly is controlled to be far away from the workpiece;
(7) and releasing the clamping of the pressing claw on the workpiece, and taking down the assembled workpiece from the workbench.
As a further improvement of the present invention, if the auxiliary supporting component is disposed on the workbench, the method further comprises the following steps:
before positioning and clamping a workpiece, controlling an auxiliary supporting component to be in an initial state, namely the auxiliary supporting component does not abut against the inner peripheral wall surface of the workpiece; after the pin is assembled, the auxiliary supporting assembly is controlled to work to tightly abut against the inner peripheral wall surface of the workpiece at the pipe fitting assembling position, and then the pipe fitting is assembled.
The above-described improved technical features may be combined with each other as long as they do not conflict with each other.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
(1) according to the processing device suitable for assembling the inverter shell, the positioning block, the bearing block, the pressing claw, the pin mounting unit and the pipe fitting assembly are arranged on the workbench corresponding to the inverter shell to be assembled, and by utilizing the corresponding arrangement and mutual matching of the number and the positions of all parts, the accurate positioning and clamping of a workpiece can be quickly realized, so that the sequential assembly of the pin and the pipe fitting is realized, the accuracy of the assembly and processing of the workpiece is ensured, the assembly and processing efficiency of the workpiece is improved, and the processing cost of the inverter shell of the new energy automobile is reduced;
(2) according to the processing device suitable for assembling the inverter shell, the auxiliary support assembly is correspondingly arranged on the workbench, and the inner peripheral wall surface of the position of the pipe fitting to be assembled on the workpiece can be supported in a propping manner after the pin assembly is completed and before the pipe fitting assembly is started by utilizing the corresponding matching of the support block, the propping block and the telescopic unit in the auxiliary support assembly, so that the deformation and the loosening of the pin caused by the displacement or the rotation of the workpiece during the pipe fitting assembly are avoided; the accuracy of assembling the inverter shell is further ensured, unqualified products are reduced, and the processing cost of the inverter shell is reduced;
(3) according to the processing device suitable for assembling the inverter shell, the combination arrangement and the corresponding control of the spring, the plug and the telescopic unit in the auxiliary supporting component are utilized, so that the reliable locking of the auxiliary supporting component before the pipe fitting is assembled, the reliable abutting during the pipe fitting assembly and the quick resetting after the pipe fitting assembly are completed can be realized, the whole process is simple to control and simple and convenient to operate, the assembling precision is ensured, and meanwhile, the control process of the processing device is further simplified;
(4) the processing device suitable for assembling the inverter shell is simple in structure, convenient and fast to assemble and operate, the processing method for assembling by using the processing device is simple and convenient, accurate positioning and reliable clamping of the inverter shell can be achieved, assembling of pins and assembling of pipe fittings can be automatically and quickly completed after positioning and clamping are completed, assembling precision and assembling efficiency of the inverter shell of the new energy automobile are effectively improved, assembling cost of the inverter shell is reduced, and the processing device has good application prospect and popularization value.
Drawings
Fig. 1 is a structural plan view of a machining device suitable for assembling an inverter housing in an embodiment of the invention;
fig. 2 is a structural side view of a machining device suitable for assembly of an inverter case in the embodiment of the invention;
FIG. 3 is a schematic structural diagram of a workpiece to be assembled after being positioned and clamped on a machining device in the embodiment of the invention;
FIG. 4 is a schematic perspective view of an auxiliary support assembly of the processing apparatus according to an embodiment of the present invention;
FIG. 5 is a side view of the auxiliary support assembly of the processing apparatus in an embodiment of the present invention;
FIG. 6 is a top view of the auxiliary support assembly of the processing apparatus in an embodiment of the present invention;
fig. 7 is a schematic perspective view of a machining device suitable for assembling an inverter housing according to an embodiment of the present invention;
in all the figures, the same reference numerals denote the same features, in particular: 1. the pin installation device comprises a positioning block, a pin installation unit, a plug, a supporting block, a stress block 401, an installation block 402 and a rotating shaft 403; 5. the device comprises a jacking block, 6 parts of pipes, 7 parts of pipe clamps, 8 parts of telescopic units, 9 parts of springs, 11 parts of pressing claws, 12 parts of pipe ejection mechanisms, 13 parts of working tables, 14 parts of force bearing blocks and 15 parts of limiting blocks.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Example (b):
referring to fig. 1 to 4, in a preferred embodiment of the present invention, the processing apparatus suitable for assembling the inverter housing includes a working table 13, where the working table 13 is a plate-shaped structure, and is fixedly or detachably mounted at a corresponding processing position for corresponding placement, clamping and processing of the inverter housing. In a preferred embodiment, the inverter housing can complete the assembly of the pin holes and the assembly of the pipe on the worktable 13, and the whole assembly process can roughly include the following steps: (1) clamping the inverter housing on the worktable 13; (2) correspondingly installing pins in corresponding pin holes on the machined end face of the inverter shell; (3) assembling the pipe fitting at a corresponding position on the inverter housing; (4) the assembled inverter case is removed from the table 13, and the assembly process is completed.
Specifically, the table 13 in the preferred embodiment is provided with a plurality of positioning blocks 1, for example, two positioning blocks 1 shown in fig. 1, the middle parts of the two positioning blocks 1 are vertically provided with positioning holes for correspondingly embedding pins on the machining end face of the inverter housing, and the end parts of the pins protrude from the machining end face and extend outwards in the direction perpendicular to the machining end face. In a preferred embodiment, the number of the installed pins is two, so that the number of the positioning blocks 1 is also two, and the positions of the two positioning blocks 1 are arranged corresponding to the positions of the two installed pins on the inverter shell, so that when the inverter shell is placed on the workbench, the two installed pins can be respectively embedded into the corresponding positioning holes, and reliable positioning before the inverter shell is clamped is realized. Obviously, the number of the positioning blocks 1 can be changed according to the number of the pins installed on the inverter housing, which is preferable according to the actual situation.
Further, the pin installation units 2 are arranged on the workbench 13 corresponding to the processing holes to be assembled with the pins on the processing end face, and the setting number and the setting position of the pin installation units 2 correspond to the number and the position of the processing holes to be assembled on the processing end face. In actual installation, the pin attaching unit 2 may be installed with reference to the installation position of the positioning block 1. Specifically, the pin mounting unit 2 in the preferred embodiment includes a pin receiving hole and an assembling component disposed at the bottom of the pin receiving hole, and the pin receiving hole is preferably vertically formed for receiving a pin; the assembling component is an oil cylinder in the preferred embodiment, the output end of the oil cylinder can reciprocate vertically and push out the pins accommodated in the pin accommodating holes, matching of the pins and the corresponding processing holes on the processing end face is realized, and the assembling process of the pins is realized. Preferably, a detection unit, which is a pressure detection sensor in a preferred embodiment, is provided on the fitting assembly for detecting whether the pin is missed in the pin receiving hole. However, in practice, the mounting assembly may be provided in a form other than a cylinder, as long as ejection of the pin is achieved.
Furthermore, a plurality of bearing blocks 14 are arranged on the workbench 13 at intervals corresponding to the workpiece (inverter housing), and the bearing blocks 14 are arranged at the four corners of the workpiece for supporting, so that the accuracy of placing the workpiece is ensured. Obviously, the height of the top surface of the bearing block 14 is not lower than that of the top surface of the positioning block 1, so that the machined end surface of the workpiece can be stably placed on the bearing block 14 and kept horizontal. Accordingly, a plurality of pressing claws 11, preferably three as shown in fig. 1, are provided on the table 13 corresponding to the workpiece, and the pressing claws 11 have rotatable pressing pieces for pressing the outer periphery of the workpiece at a plurality of positions simultaneously to press the machined end face against the respective force bearing pieces 14, as shown in fig. 3. Preferably, a plurality of limiting blocks 15 are further arranged on the workbench 13 at intervals and used for limiting the periphery of the workpiece after clamping.
Further, a pipe clamp 7 and a pipe ejection mechanism 12 are arranged on the workbench 13, the pipe clamp is used for wrapping and clamping one end of the pipe 6, one end of the pipe clamp 7 is fixed at the telescopic end of the pipe ejection mechanism 12, and the pipe clamp 7 can reciprocate along the axial direction through the driving of the pipe ejection mechanism 12, so that the pipe 6 can be assembled at the corresponding position on the workpiece. When the pipe ejection mechanism 12 is actually arranged, the arrangement position of the pipe ejection mechanism is just positioned on one side of the workpiece after positioning and clamping, and the pipe clamp 7 at the end part is coaxially aligned with the pipe assembling hole at the corresponding position on the workpiece. In the preferred embodiment, the axis of the pipe 6 is inclined to the machining end face after being assembled on the workpiece, and in view of this, the axis of the pipe assembling hole is inclined to the machining end face. Accordingly, the pipe clamp 7 is set at an inclined angle to the table top of the table 13, as shown in fig. 2. Further preferably, the pipe ejection mechanism 12 in the preferred embodiment is a telescopic cylinder or a telescopic oil cylinder.
Through the corresponding setting of above-mentioned structure, can realize the corresponding assembly of pin and pipe fitting 6 on the work piece, pin and pipe fitting respectively with the pilot hole interference fit who corresponds and realize the assembly. Meanwhile, in actual assembly, the pipe member 6 is often assembled after assembling the pin, the pin is placed on the pin mounting unit 2 and ejected by the assembling component (the oil cylinder in the preferred embodiment), and the pin is pressed into the pin assembling hole of the workpiece. However, in order to accurately clamp the workpiece, a certain gap is formed between the pin accommodating hole and the pin assembling hole during actual setting, so that the end part of the pin is remained in the pin accommodating hole after the pin is assembled. Meanwhile, in order to avoid deformation of the workpiece during assembly, the pressing force applied to the workpiece by each pressing claw 11 cannot be too large when the workpiece is actually clamped. If the pipe member 6 is directly assembled, the workpiece is subjected to a lateral force, and the workpiece may be displaced, so that the pin remaining in the pin receiving hole is deformed or loosened by the force.
In order to avoid the above situation, in the preferred embodiment, an auxiliary support assembly is provided on the worktable 13 corresponding to the assembly of the workpiece, and comprises a plug 3, a support block 4, a tightening block 5 and a telescopic unit 8 as shown in fig. 4 to 6. After the workpiece is clamped on the workbench 13, the auxiliary support assembly is covered by the workpiece, as shown in fig. 3, at this time, by controlling the auxiliary support assembly, the auxiliary support assembly can support the inner side of the workpiece, specifically, the inner wall of the side of the pipe fitting 6 to be assembled on the workpiece.
Specifically, as shown in fig. 5 and 6, the axis of the choke plug 3 in the preferred embodiment is horizontally arranged, one end of the choke plug is aligned with the end of the supporting block 4, and the other end of the choke plug is arranged on the telescopic mechanism, and the choke plug 3 can reciprocate in the horizontal direction under the control of the telescopic mechanism. Further, the supporting block 4 in the preferred embodiment is an L-shaped structure, which includes a first branch portion disposed vertically and a second branch portion disposed horizontally, and the two branch portions are disposed at an included angle of 90 ° or at an obtuse angle slightly larger than 90 °, as shown in fig. 5. Accordingly, to achieve the arrangement of the support block 4, a mounting block 402 is provided on the table 13, and an end of the second branch portion is rotatably provided on a top of the mounting block 403 by a rotating shaft 403, as shown in fig. 5, so that the second branch portion can rotate about the rotating shaft 403.
Further, the jacking block 5 is arranged at the end portion of the second branch portion in rotating connection, as shown in fig. 5, by the rotating around the shaft of the second branch portion, the rotating around the shaft of the jacking block 5 can be realized, and the jacking block 5 is abutted against the inner peripheral side wall surface (the side wall surface of the pipe fitting 6 to be assembled) of the workpiece. In order to realize the rotation and locking of the supporting block 4 and the jacking block 5 on the supporting block 4, a telescopic unit 8 is arranged corresponding to the first support part of the supporting block 3, the telescopic unit 8 in the preferred embodiment is an oil cylinder, the telescopic end part of the oil cylinder is arranged below the end part of the first support part, the first support part can be jacked up through the ascending of the telescopic end part of the oil cylinder, the movement of the supporting block 4 and the jacking block 5 around the rotating shaft 403 is realized, the side wall surface of a workpiece is jacked by the jacking block 5, the oil cylinder is locked, the supporting block 4 is kept at the corresponding position, and then the assembling process of the pipe fitting 6 is carried out.
When carrying out the setting of end cap 3 and supporting shoe 4, both can set up side by side in same vertical plane, and the tip of end cap 3 is directly adjusted well the tip that first branch portion deviates from second branch portion promptly, through end cap 3's concertina movement, can realize that end cap 3 and the butt of second branch portion tip match, accomplish the locking of supporting shoe 4 under initial condition. Obviously, the arrangement described above makes it possible to fit the components in a "long and narrow" working area, requiring a long travel space for the plug 3 and avoiding interference with the rotation of the support block 4, which is possible for the assembly of long pieces. However, when the workpiece is not a long and narrow workpiece or the stroke of the plug 3 is limited, the support block 4 and the plug 3 need to be arranged in a staggered manner, as shown in fig. 6, at this time, the plug 3 is not aligned with the first branch portion, and a stress block 401 is arranged on one side of the first branch portion close to the plug 3, one end of the stress block 401 is connected to the first branch portion, and the other end of the stress block extends horizontally to a position facing the plug 3, so that the plug 3 can be matched with the stress block 401 in a horizontally telescopic manner or be away from the stress block 401, and the support block 4 can be locked or rotated. Preferably, the force-bearing block 401 is in an "L" shape, one end of which is fixedly connected to the first branch portion, and the other end of which extends to the front of the plug 3. Accordingly, the telescopic end of the telescopic unit 8 may be disposed below the end of the first branch portion, and may also be disposed below the force receiving block 401.
Further, in order to realize the rotation and return of the support block 4, a spring 9 is provided at the bottom of the second branch portion, the bottom of the spring 9 is preferably fixed to the mounting block 402, and the top thereof is connected to the bottom surface of the second branch portion. In practical arrangement, the spring 9 may be a long spring or a short spring.
When the spring 9 is a long spring, if the second branch portion is to be kept horizontal, the long spring needs to be in a compressed state, that is, the supporting block 4 must have an external force or an external structure matching action to keep the state as shown in fig. 5. In a preferred embodiment, the retention of the above-mentioned condition may be achieved in the form of the plug 3 being in mating abutment against the end of the first limb.
When the spring 9 is a short spring, i.e. the normal state of the spring 9 is programmed into the spring length shown in fig. 5 or slightly longer than the spring length shown in fig. 5, the spring restoring force of the spring in fig. 5 is balanced with the gravity force exerted on the spring 9 by the support block 4, i.e. the support block 4 can be maintained in the state shown in fig. 5 without applying an additional force, although the spring is also in a slightly compressed state in fig. 5. It is clear that the initial locking of the support block 4 can also be achieved without the provision of the plug 3 when the spring 9 is a short spring.
Through the corresponding arrangement of the structures, the processing device suitable for assembling the inverter shell in the preferred embodiment can be obtained, and the processing method for assembling the inverter shell by using the processing device comprises the following steps:
(1) before assembly, the machining devices are correspondingly assembled into the form shown in fig. 7, pins to be assembled are correspondingly accommodated in the pin accommodating holes of the pin mounting unit 2, the pipe fitting 7 to be assembled is correspondingly clamped on the pipe fitting clamp 7, at the moment, the assembly components of the pin mounting unit 2 are positioned at the bottom of the accommodating holes, and the pipe fitting ejection mechanism 12 is positioned far away from a workpiece clamping area.
(2) And correspondingly placing the workpiece on each bearing block 14, aligning the installed pins on the workpiece with the positioning blocks 1 at the corresponding positions, and then embedding the installed pins into the positioning holes in a matching manner to realize the positioning of the workpiece on the processing device, wherein at the moment, the pins to be installed are coaxially aligned with the processing holes to be assembled on the processing end face of the workpiece.
(3) And controlling the pressing claws 11 to work to press the corresponding positions of the workpiece tightly, so that the workpiece is clamped on the machining device, and at the moment, the machining hole for assembling the pipe fitting 6 on the workpiece is coaxially aligned with the pipe fitting clamp 7.
If the auxiliary supporting component is arranged on the workbench 13, the auxiliary supporting component is in an initial state at this time, that is, the second branch part is limited by the spring 9 (short spring) and/or the plug 3 in a nearly horizontal state, and the jacking block 5 does not abut against the inner peripheral wall surface of the workpiece.
(4) And controlling the assembly components in each pin installation unit 2 to work, ejecting out the pins in the pin containing holes, realizing the assembly of the pins in the corresponding processing holes on the processing end surface, and finishing the assembly process of each pin. Obviously, the pins can be assembled simultaneously or sequentially.
(5) After the assembly of the pin is completed, before the assembly of the pipe fitting 6 is performed, if the auxiliary supporting assembly is arranged on the workbench 13, at the moment, the abutting of the plug 3 to the first branch part is removed, the telescopic unit 8 is opened, so that the telescopic end abuts against the end part of the first branch part or the stress block 401 and upwards pushes the stress block, namely the jacking block 5 is screwed to the side wall surface of the workpiece, and the side wall surface of the pipe fitting 6 to be assembled is jacked by the jacking block 5.
(6) And controlling the pipe ejection mechanism 12 to work, driving the pipe 6 to be assembled to be close to the to-be-assembled processing hole of the workpiece until the pipe 6 is accurately assembled in the processing hole, loosening the clamping of the pipe 6 by the pipe clamp 7, and retracting the pipe ejection mechanism 12 to be far away from the assembled workpiece.
(7) Controlling the telescopic mechanism 8 to retract, so that the abutting of the jacking block 5 on the inner peripheral side wall surface of the workpiece is released, and then the supporting block 4 is reset; and opening each pressing claw 11, releasing the clamping of the workpiece, and finally taking down the assembled workpiece from the machining device.
The processing device suitable for assembling the inverter shell is simple in structure and convenient and fast to operate, can realize accurate positioning and reliable clamping of the inverter shell, automatically and quickly completes assembling of pins and assembling of pipe fittings after positioning and clamping are completed, effectively improves assembling precision and assembling efficiency of the inverter shell of the new energy automobile, reduces assembling cost of the inverter shell, and has good application prospect and popularization value.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A processing device suitable for assembling an inverter shell comprises a workbench and is characterized by further comprising a bearing block, a positioning block, a pin mounting unit, a pressing claw and a pipe fitting assembly, wherein the bearing block, the positioning block, the pin mounting unit, the pressing claw and the pipe fitting assembly are arranged on the workbench;
the bearing blocks are arranged at intervals, and the top surfaces of the bearing blocks are positioned on the same horizontal plane and used for supporting the machined end surface of a workpiece;
the positioning block is arranged corresponding to the installed pins on the processing end face, a positioning hole is vertically formed in the middle of the positioning block, and after the processing end face is placed on the bearing block, the installed pins can be respectively embedded into the corresponding positioning holes;
the set number and the set position of the pin mounting units correspond to the processing holes of the pin holes to be assembled on the processing end face after positioning and clamping; the pin installation unit is provided with a pin accommodating hole which is vertically arranged and an assembly component which is arranged at the bottom of the pin accommodating hole; the pin to be assembled can be coaxially accommodated in the pin accommodating hole and can be driven by the assembling component to vertically lift;
the pressing claws are arranged on the workbench at intervals along the circumferential direction and are used for pressing the positioned workpiece on each bearing block and enabling the processing hole of the pipe fitting to be assembled on the workpiece to be coaxially aligned with the pipe fitting clamped on the pipe fitting assembly; correspondingly, the pipe fitting assembly is arranged on the workbench and used for clamping the pipe fitting to be assembled and driving the pipe fitting to move along the axial direction, and then coaxial assembly of the pipe fitting in the pipe fitting machining hole to be assembled is achieved.
2. The machining device suitable for assembling the inverter housing as claimed in claim 1, wherein an auxiliary support member is further provided on the table, for abutting against an inner peripheral wall surface of the workpiece at an assembling position of the pipe when the pipe is assembled.
3. The machining device suitable for assembling the inverter housing according to claim 2, wherein the auxiliary support assembly comprises a support block, a jacking block and a telescopic unit;
the supporting block comprises a first supporting part and a second supporting part which form a certain angle with each other, and a mounting block is arranged corresponding to the mounting of the supporting block; and is
The jacking block is connected to the end part of the second branch part in rotating connection, and can be close to or far away from the inner peripheral wall surface of the workpiece under the condition that the second branch part rotates around a shaft; and
the telescopic unit is provided with a telescopic end capable of vertically telescoping, the telescopic end is arranged corresponding to the end part of the first support part, and the telescopic end can act on the end part of the first support part after vertically rising and drive the supporting block to rotate around the shaft, so that the jacking block turns to the inner peripheral wall surface of the workpiece.
4. The machining device suitable for assembling the inverter housing according to claim 3, wherein a spring is vertically provided below the second branch portion; one end of the spring is fixed on the top of the mounting block, and the other end of the spring is connected with or abutted against the bottom surface of the second branch part.
5. The machining device suitable for assembling the inverter shell according to any one of claims 2 to 4, wherein the auxiliary support assembly further comprises a plug; one end of the plug is connected to the telescopic mechanism and can be driven by the telescopic mechanism to horizontally and reciprocally extend and retract; and the other end of the plug can act on the end part of the first supporting part after horizontal movement, and the position of the jacking block is locked when the jacking block is far away from the inner peripheral wall surface of the workpiece.
6. The machining device suitable for assembling the inverter shell according to claim 5, wherein the choke plug is arranged in a staggered manner with respect to the support block, and a stress block is arranged at an end of the first branch part; one end of the stress block is fixedly connected with the first branch part, and the other end of the stress block extends to the front of the plug, so that the plug can be tightly propped against or far away from the stress block after horizontal movement.
7. The machining device suitable for assembling the inverter shell according to any one of claims 1 to 6, wherein the pipe fitting assembly comprises a pipe clamp and a pipe ejection mechanism;
the pipe fitting clamp is used for coaxially clamping the pipe fitting to be assembled, is arranged on the pipe fitting ejection mechanism and can carry out reciprocating motion in the axial direction under the driving of the pipe fitting ejection mechanism.
8. The machining device suitable for assembling the inverter shell according to any one of claims 1 to 7, wherein a plurality of limiting blocks are arranged on the workbench at intervals along the circumferential direction, and are used for limiting the periphery of the clamped workpiece.
9. A machining method suitable for assembling an inverter housing, which is realized by using the machining device of any one of claims 1 to 8, the machining method comprising the steps of:
(1) the pins to be assembled are accommodated in the corresponding pin accommodating holes, and all the assembling components are positioned at the bottoms of the pin accommodating holes; meanwhile, clamping the pipe fitting to be assembled on the pipe fitting assembly;
(2) placing a workpiece to be assembled on each bearing block in a mode that the processing end face of the workpiece faces downwards, and enabling each installed pin on the processing end face to be respectively embedded into the positioning hole in the corresponding positioning block to realize the positioning of the workpiece;
(3) controlling each pressing claw to work, and pressing the workpiece on each bearing block to realize positioning and clamping of the workpiece;
(4) controlling the assembling components to work, so that the pins to be assembled are respectively pushed into the corresponding processing holes on the processing end face by the assembling components;
(5) controlling the pipe fitting assembly to work, so that the pipe fitting to be assembled is jacked into the corresponding machining hole in the workpiece until the pipe fitting is assembled in place;
(6) the clamping of the pipe fitting assembly on the end part of the pipe fitting which is assembled in place is released, and the pipe fitting assembly is controlled to be far away from the workpiece;
(7) and releasing the clamping of the pressing claw on the workpiece, and taking down the assembled workpiece from the workbench.
10. The machining method suitable for assembling the inverter casing according to claim 9, wherein if an auxiliary support assembly is provided on the table, the method further comprises the steps of:
before positioning and clamping a workpiece, controlling an auxiliary supporting component to be in an initial state, namely the auxiliary supporting component does not abut against the inner peripheral wall surface of the workpiece; after the pin is assembled, the auxiliary supporting assembly is controlled to work to tightly abut against the inner peripheral wall surface of the workpiece at the pipe fitting assembling position, and then the pipe fitting assembling step is carried out.
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| CN202010663418.6A CN111872657B (en) | 2020-07-10 | 2020-07-10 | Machining device and machining method suitable for assembling inverter shell |
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| CN112975801A (en) * | 2021-04-30 | 2021-06-18 | 广东鸿图武汉压铸有限公司 | Pressing device and pin pressing device for workpiece with notch |
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| CN111872657B (en) | 2021-08-27 |
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