CN219075000U - High-precision positioning and clamping device for turbocharger shell - Google Patents
High-precision positioning and clamping device for turbocharger shell Download PDFInfo
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- CN219075000U CN219075000U CN202223483761.6U CN202223483761U CN219075000U CN 219075000 U CN219075000 U CN 219075000U CN 202223483761 U CN202223483761 U CN 202223483761U CN 219075000 U CN219075000 U CN 219075000U
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model belongs to the technical field of machining, and particularly relates to a high-precision positioning and clamping device for machining a turbocharger shell, which comprises a base, a positioning and clamping seat arranged on the base, a center positioning device arranged on the positioning and clamping seat, a transmission mechanism, an end face Z-direction positioning and jacking device and a power source which is arranged on the base and is connected with the transmission mechanism and used for driving the center positioning device to act on the positioning and clamping seat.
Description
Technical Field
The utility model belongs to the technical field of machining, and particularly relates to a high-precision positioning and clamping device for machining a turbocharger shell.
Background
The manufacturing and processing precision requirements of the turbocharger shell are very high, the common processing scheme is difficult to meet the processing requirements, particularly, the machining dimension of an inner cavity turbine runner relative to a flange mounting surface and a turbine mounting position is one of key dimensions, the requirements are high, the turbocharger shell is similar to the spiral appearance design of a conch, the overall appearance is complex, the inflow structure of the shell is also complex, meanwhile, the internal structural tolerance of the inner runner is very small (as shown in figure 1), the turbine runner and a Z reference are obtained by casting, the shape and the position of the turbine runner are greatly degraded, in addition, the complex shape is difficult to accurately fix the turbine runner by adopting an external fixing clamp, and the processing, the detection and the evaluation of the turbocharger shell obtained by casting are very difficult due to the inaccuracy of the positioning and the fixing; in order to ensure that the tolerance of the relative position reaches the required standard, the blank datum of the inner cavity runner and the Z datum is required to be used for positioning and processing so as to reduce the variation factor in processing, but because the product structure is complex, the shape is irregular, the individual is smaller, and the like, the center positioning and clamping are performed on the turbocharger with a narrow inner space, a tool which has high precision and reasonable structure and is stable in operation and can realize automatic centering and Z-direction step datum positioning and clamp the shell is required, so that the position of the product in the clamp is unique and fixed, and the requirement of processing size precision is further met.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a high-precision positioning and clamping device for positioning and clamping the center of a runner of an inner cavity of a turbocharger shell and the Z end face of an inner runner, wherein the workpiece to be processed can be positioned in the center and initially positioned and clamped through the center positioning device, and then the workpiece to be processed is finally fixed by matching with the end face positioning and jacking device.
The utility model is realized by the following technical scheme: the high-precision positioning and clamping device for the turbocharger shell comprises a base, a positioning and clamping seat arranged on the base, a center positioning device, a transmission mechanism, an end face Z-direction positioning and jacking device and a power source, wherein the center positioning device, the transmission mechanism and the end face Z-direction positioning and jacking device are arranged on the positioning and clamping seat, and the power source is arranged on the base and connected with the transmission mechanism and used for driving the center positioning device to act on the positioning and clamping seat;
the positioning clamping seat is of a stepped cylindrical structure, and a driving cylinder mounting hole for mounting the driving cylinder is formed in the upper end of the positioning clamping seat;
the central positioning device comprises at least three positioning claws which are arranged on the positioning clamping seat in a sliding manner, and the positioning claws are uniformly distributed in a circumference manner; the top end of the positioning claw is provided with a Z-direction positioning block for positioning a step reference of a workpiece to be processed, and an outer circle positioning point for positioning the center of the workpiece to be processed is arranged on the positioning claw at a position right below the Z-direction positioning block; the positioning claw is connected with a power source through a transmission mechanism, and can synchronously slide on the positioning clamping seat to perform opening and closing actions under the power action of the power source; the center positioning device adopts the structural design of positioning claws which can synchronously slide along the radial direction of the positioning clamping seat on the positioning clamping seat, so as to form a positioning mechanism capable of opening and closing, and the center positioning device can be better propped against the inner wall of the turbocharger shell for fixing; the Z-direction positioning block is adopted on the positioning claw, so that the step datum of the workpiece can be positioned further accurately, the structural design of the outer circle positioning point on the positioning claw is matched, and the positioning claw is used for centering the workpiece to be machined.
Further, the end face Z-direction positioning and jacking device comprises driving cylinders which are circumferentially distributed on the positioning and clamping seat, the number of the driving cylinders is not less than three, the driving cylinders are fixedly arranged at the upper end part of the positioning and clamping seat through the cylinder bodies of the driving cylinders, and piston rods of the driving cylinders extend out and can be jacked on the lower end face of a workpiece to be processed; the driving cylinders distributed circumferentially at the center point of the positioning and clamping seat are adopted to form the structural design of the end face Z-direction positioning and jacking device, so that the secondary jacking positioning and fixing can be carried out on the workpiece to be processed by matching with the center positioning device, and meanwhile, the driving cylinders are uniformly distributed circumferentially, and the stress balance of the workpiece to be processed can be better ensured when the workpiece to be processed is jacked; the driving cylinder can be a linear cylinder, an air cylinder or an electric cylinder, and is preferably a linear cylinder.
The transmission mechanism comprises a transmission push rod, a rocker arm pull rod, a positioning claw rocker arm and a positioning claw base, one end of the transmission push rod is connected to a power source, and the other end of the transmission push rod is connected with the rocker arm pull rod; the rocker arm pull rod is arranged in the positioning clamping seat in a sliding manner and is positioned in the center of the circle where the positioning claw is positioned; the positioning claw rocker arm is rotatably arranged in the positioning clamping seat and is provided with a lower arm and an upper arm; the three positioning claw bases are arranged on the three positioning claw bases respectively; the upper arm and the lower arm of the positioning claw rocker arm are respectively connected with the positioning claw base and the rocker arm pull rod; preferably, the transmission push rod is connected with the power source through the power source connecting block, one end of the transmission push rod and the power source is provided with a vertical T-shaped connecting groove, one end of the power source connecting block is provided with a T-shaped connecting head matched with the T-shaped connecting groove of the transmission push rod, the other end of the transmission push rod is fixedly provided with a threaded rod, the power source connecting block and the transmission push rod are mutually connected through the matching of the T-shaped connecting groove and the T-shaped connecting head, the center position of the end head of a piston rod of the power source is provided with a threaded hole matched with the threaded rod of the power source connecting block, and the power source connecting block is arranged in the threaded hole of the end head of the piston rod of the power source through the threaded rod on the power source connecting block so as to be fixedly arranged on the piston rod of the power source.
The one end that the power source was kept away from to the transmission push rod is provided with T shape inclined plane, the lower extreme of rocking arm pull rod is provided with and transmits push rod T type inclined plane assorted inclined plane T-shaped groove, transmission push rod and rocking arm pull rod are cross sliding connection through T type inclined plane and inclined plane T-shaped groove matched with.
An annular groove is formed in one end, far away from the transmission push rod, of the rocker arm pull rod, and the lower arm of the positioning claw rocker arm is clamped in the annular groove of the rocker arm pull rod.
The lower part of the positioning claw base is provided with a rocker arm straight groove, and the upper arm of the positioning claw rocker arm is clamped in the rocker arm straight groove of the positioning claw base.
The positioning claw rocker arm is arranged in the positioning clamping seat in a penetrating mode through the pin shaft.
The upper end of the positioning clamping seat is provided with a track chute for installing a positioning claw base, and the positioning claw base is arranged in the track chute in a sliding way.
The positioning clamping seat is characterized in that sliding rails are arranged at the opposite positions of two side walls of the track sliding groove on the positioning clamping seat, sliding grooves are formed in two side faces of the positioning claw base, and the positioning claw base is slidably mounted in the track sliding groove through the matching of the sliding grooves and the sliding rails.
The outer circle positioning point is a spherical bulge or an arc surface bulge arranged on the positioning claw.
The utility model has the beneficial effects that:
1. according to the high-precision positioning and clamping device for the turbocharger shell, the positioning claws are adopted to form the structural design of the center positioning device capable of opening and closing, and the turbocharger shell can be positioned and clamped from the inside of the runner in the turbocharger shell; the top end of the positioning claw is provided with a Z-direction positioning block for positioning a step reference of a workpiece to be processed and a structural design of an outer circle positioning point for positioning the center of the workpiece to be processed, so that the center positioning device can accurately contact and align a specified inner cavity reference and then tightly press and clamp the workpiece to be processed to preliminarily fix the workpiece to be processed; meanwhile, by matching with the structural design of the end face Z-direction positioning and propping device formed by the linear oil cylinders, after the central positioning device performs primary fixing on the workpiece to be processed from the inner flow passage of the workpiece to be processed, the end face of the workpiece to be processed performs Z-direction propping to realize secondary propping fixation, so that the unique and stable fixation of the position of a product in the clamp is effectively ensured, and the requirement on the processing dimensional precision is further effectively ensured; the structural design of the clamp has the advantages that the clamping effect is carried out while positioning, so that the design difficulty of the product clamp is reduced, the processing quality of the product is improved, and the manufacturing cost is effectively reduced;
2. in the patent application, the claw is provided with the Z-direction positioning block and the structural design that the cambered surface bulge is adopted as the positioning point for the positioning point, so that the positioning error caused by the shape and position variation of the casting is effectively eliminated, the accurate positioning is effectively realized, the precision of the machining size is ensured, and the production yield of the product is increased;
3. the center positioning device adopts the structural design of the positioning claw capable of sliding synchronously, and simultaneously adopts the transmission structural design of the positioning claw rocker arm and the rocker arm pull rod, so that the complete folding of the positioning claw can be effectively ensured, the adaptability of the center positioning device to a narrow space is enhanced, and the center positioning device can extend into an inner runner of a turbocharger shell and be spread in the inner runner to find the center for clamping and positioning;
4. the utility model discloses a transmission push rod and rocking arm pull rod cooperate through T type inclined plane and inclined plane T groove and are cross sliding connection structural design, the effectual side direction that realizes the power supply arranges the design, can effectively save device's installation space, let whole device's suitability stronger, T type inclined plane and inclined plane T groove matched with design simultaneously, also avoided the side direction to pass power and need manual drawback that resets, realized the stable linkage of transmission push rod and rocking arm pull rod, guaranteed the stability of whole operation.
Drawings
FIG. 1 is a schematic cross-sectional view of a workpiece to be machined;
FIG. 2 is a reference diagram of the usage status of the present utility model;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic view of the present utility model with the positioning clamping base removed;
FIG. 6 is a schematic view of a positioning and clamping seat according to the present utility model;
FIG. 7 is a schematic view of the structure of the rocker arm tie of the present utility model;
FIG. 8 is a schematic view of the structure of the transmission pushrod and power source connection block of the present utility model;
fig. 9 is a schematic view of the structure of the positioning pawl of the present utility model.
Wherein: the device comprises a 1-workpiece to be machined, a 2-base, a 3-positioning clamping seat, a 31-middle round hole, a 32-driving cylinder mounting hole, a 33-track chute, a 331-slide rail, a 4-center positioning device, a 41-positioning claw, a 42-Z-direction positioning block, a 43-outer circle positioning point, a 5-end face Z-direction positioning jacking device, a 51-driving cylinder, a 6-transmission mechanism, a 61-transmission push rod, a 611-T-shaped connecting groove, a 612-T-shaped inclined surface, a 62-rocker arm pull rod, a 621-annular groove, a 622-inclined surface T-shaped groove, a 63-positioning claw rocker arm, a 631-lower arm, a 632-upper arm, a 64-positioning claw base, a 641-positioning groove, a 642-rocker arm straight groove, a 643-chute, a 7-power source, a 71-hydraulic cylinder piston rod, an 8-power source connecting block, an 81-T-shaped connector and a 82-threaded rod.
Detailed Description
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
The high-precision positioning and clamping device for the turbocharger shell comprises a base 2, wherein a positioning and clamping seat 3 and a power source 7 are fixedly arranged on the base 2, the power source 7 is positioned on one side of the positioning and clamping seat, and the power source 7 is positioned on the right side of the positioning and clamping seat 3 in the embodiment; the positioning clamping seat 3 is provided with a center positioning device 4, a transmission mechanism 6 and an end face Z-direction positioning and jacking device 5; the power source 7 is connected with the center positioning device 4 through a transmission mechanism 6, and the power source 7 drives the center positioning device 4 to open and close on the positioning clamping seat through the transmission mechanism 6. The workpiece 1 to be machined in this embodiment is a turbocharger housing to be machined, and the power source 7 is preferably a hydraulic cylinder.
The positioning and clamping seat 3 is of a step cylindrical structure, the upper end of the positioning and clamping seat 3 is provided with a driving cylinder mounting hole 32 and a track sliding groove 33, the driving cylinder mounting hole is used for mounting a driving cylinder 51, the track sliding groove 33 is used for mounting a positioning claw base 64, and the positioning claw base 64 can slide back and forth on the positioning and clamping seat 3 along the radial direction of the positioning and clamping seat 3 under the driving of the power source 7; the middle round hole 31 of the positioning clamping seat 3 is used for installing a rocker arm pull rod 62, and the rocker arm pull rod 62 can slide up and down in the middle round hole 31.
The center positioning device 4 comprises at least three positioning claws 41 which are slidably arranged on the positioning clamping seat, and the positioning claws 41 are uniformly distributed on the circumference; in the embodiment, the number of the positioning claws 41 is three, the three positioning claws 41 are uniformly distributed along the circumference of the center point of the positioning clamping seat 3, and the three positioning claws 41 can synchronously slide on the positioning clamping seat 3 along the radial direction of the positioning clamping seat 3; the top end of the positioning claw 41 is provided with a Z-direction positioning block 42 for positioning a step reference of a workpiece to be processed, and the Z-direction positioning block 42 faces away from the center of the positioning clamping seat 3; an outer circle positioning point 43 for positioning the center of the workpiece 1 to be processed is arranged on the positioning claw 41 at a position right below the Z-direction positioning block 42, and the specific outer circle positioning point 43 is a spherical protrusion or an arc surface protrusion which is arranged on the positioning claw and is in a shape of a runner of the turbocharger shell; the center positioning device adopts the structural design of positioning claws which can synchronously slide along the radial direction of the positioning clamping seat on the positioning clamping seat, so as to form a positioning mechanism capable of opening and closing, and the center positioning device can be better propped against the inner wall of the turbocharger shell for fixing; the Z-direction positioning block is adopted on the positioning claw, so that the step datum of the workpiece can be positioned further accurately, and the positioning claw is matched with the structural design of the outer circle positioning point on the positioning claw to realize the central positioning of the workpiece to be processed.
The end face Z-direction positioning and jacking device 5 comprises driving cylinders 51 circumferentially distributed on the positioning and clamping seat, the number of the driving cylinders 51 is not less than three, in the embodiment, the number of the driving cylinders 51 is preferably three, the driving cylinders 51 are fixedly arranged at the upper end part of the positioning and clamping seat 3 through the cylinder bodies of the driving cylinders, and the piston rods of the driving cylinders 51 extend out and can be jacked on the lower end face of the workpiece 1 to be processed; the driving cylinders distributed circumferentially at the center point of the positioning and clamping seat are adopted to form the structural design of the end face Z-direction positioning and jacking device, so that the secondary jacking positioning and fixing can be carried out on the workpiece to be processed by matching with the center positioning device, and meanwhile, the driving cylinders are uniformly distributed circumferentially, and the stress balance of the workpiece to be processed can be better ensured when the workpiece to be processed is jacked; the driving cylinder in this embodiment may be a linear cylinder, an air cylinder or an electric cylinder, and is preferably a linear cylinder. In order to better protect the end face of a workpiece to be processed, in practical application, a cushion block can be arranged at the end of a piston rod of the linear cylinder, the cushion block can be a rubber cushion block or a metal block/plate with a smooth surface, and the area of the metal block/plate is larger than that of the end of the piston rod of the linear cylinder.
The transmission mechanism 6 comprises a transmission push rod 61, a rocker arm pull rod 62, a positioning claw rocker arm 63 and a positioning claw base 64, one end of the transmission push rod 61 is connected to the power source hydraulic cylinder 7, the other end of the transmission push rod is connected with the rocker arm pull rod 62, and the preferred transmission push rod 61 is fixedly connected to a piston rod of the hydraulic cylinder through a power source connecting block 8; specifically, the one end that transmission push rod 61 and pneumatic cylinder are connected is provided with vertical T type spread groove 611, power supply connecting block one end design become with transmission push rod T type spread groove 611 assorted T type connector 81, the fixed threaded rod 82 that is equipped with of the other end, power supply connecting block 8 and transmission push rod 61 pass through T type spread groove 611 and the cooperation interconnect of T type connector 81, pneumatic cylinder piston rod end central point put be equipped with power supply connecting block threaded rod 82 assorted screw hole, power supply connecting block 8 installs at the threaded hole of power supply piston rod end through threaded rod 82 on it, and then realize power supply connecting block fixed mounting on the pneumatic cylinder piston rod.
The rocker arm pull rod 62 is slidably arranged in the middle round hole 31 of the positioning and clamping seat 3 and can slide up and down in the middle round hole 31 of the positioning and clamping seat 3, and an annular groove 621 is arranged on the rocker arm pull rod 62 near the upper end position of the rocker arm pull rod and is used for connecting the positioning claw rocker arm 63; the lower end of the rocker arm pull rod 62 is provided with an inclined plane T-shaped groove 622, the left end of the transmission push rod 61 is provided with a T-shaped inclined plane 612 matched with the rocker arm pull rod inclined plane T-shaped groove 622, the transmission push rod 61 and the rocker arm pull rod 62 are in crossed sliding connection through the matching of the T-shaped inclined plane 612 and the inclined plane T-shaped groove 622, under the matching of the T-shaped inclined plane 612 and the inclined plane T-shaped groove 622, the transmission push rod 61 can push the rocker arm pull rod to slide upwards in a middle round hole of the positioning clamping seat when being pushed by the hydraulic cylinder to move leftwards, and can drive the rocker arm pull rod to slide downwards in the middle round hole of the positioning clamping seat when being pulled by the hydraulic cylinder to move rightwards.
The positioning claw base 64 is slidably mounted on the positioning clamping seat 3, the top of the positioning claw base 64 is fixedly provided with the positioning claw 41, and the lower part of the positioning claw base is connected with the positioning claw rocker arm 63. In this embodiment, three track sliding grooves 33 are arranged at the upper part of the positioning and clamping seat 3, the three track sliding grooves 33 are uniformly distributed on the positioning and clamping seat 3 in a circumference manner by taking the center of the positioning and clamping seat 3 as the center of a circle, each track sliding groove 33 is arranged along the radial direction of the positioning and clamping seat, one end of each track sliding groove 33 penetrates into a round hole in the middle of the positioning and clamping seat, and the other end penetrates into the side wall of the positioning and clamping seat; three positioning claw bases 64 are respectively and slidably arranged in the three track sliding grooves 33 and can do reciprocating sliding motion in the track sliding grooves, one positioning claw 41 is arranged at the top of each positioning claw base 64, and the lower part of each positioning claw base 64 is connected with a positioning claw rocker arm 63; preferably, the upper part of the positioning claw base is provided with a positioning groove 641 for connecting the positioning claw 41, and the lower part of the positioning claw base is provided with a rocker arm straight groove 642 for connecting the positioning claw rocker arm 63. Further, in order to ensure that the positioning claw base can slide in the track sliding groove more stably without being separated from the track sliding groove, sliding rails 331 are arranged at the opposite positions of two side walls of the track sliding groove 33 on the positioning clamping seat 3, the track sliding groove is a cross-shaped track, sliding grooves 643 are arranged on two side surfaces of the positioning claw base 64, and the positioning claw base 64 is slidably mounted in the track sliding groove 33 through the matching of the sliding grooves 643 and the sliding rails 331.
The positioning claw rocker arm 63 is rotatably arranged in the positioning clamping seat 3 and is positioned right below the positioning claw base 64, the positioning claw rocker arm 63 is provided with a lower arm 631 and an upper arm 632, and the upper arm 632 and the lower arm 631 of the positioning claw rocker arm 63 are respectively connected with the positioning claw base 64 and the rocker arm pull rod 62; preferably, the center of the positioning claw rocker arm is provided with a through hole, and the positioning claw rocker arm is rotatably arranged in the positioning clamping seat through a pin shaft penetrating through the central through hole; further, the pin shaft passes through the center through hole of the positioning claw rocker arm and is in transition fit with the pin hole of the positioning clamping seat, so that the positioning claw rocker arm is positioned and guided; further, in order to ensure that the three positioning claws of the centering device can be folded at the center position of the positioning clamping seat, the upper arms 632 of the three positioning claw rocker arms 63 are connected with the corresponding positioning claw bases 64 by being clamped in the rocker arm straight grooves 642 of the corresponding positioning claw bases 64, and the lower arms 631 of the three positioning claw rocker arms 63 are simultaneously clamped in the annular grooves 621 on the rocker arm pull rod 62 to be connected with the rocker arm pull rod 62.
The method for positioning and clamping the turbocharger shell to be processed by using the positioning and clamping device comprises the following steps:
the positioning claw 41 of the center positioning device 4 is kept in a closed state, a turbocharger shell product to be processed is put into the clamp, the center positioning device 4 stretches into the inner cavity flow channel, and the turbocharger shell to be processed is in a free state in the positioning and clamping device under the cooperation of other parts of the positioning and clamping device;
the power source 7 of the device is started, so that a piston rod of the power source moves forwards, the transmission push rod 61 is driven to move forwards, the rocker arm pull rod 62 is driven to move upwards in the middle round hole 31 of the positioning clamping seat 3, the rocker arm pull rod 62 pulls the positioning claw rocker arm 63 to rotate around the pin shaft at the same time, and the upper arm 632 of the positioning claw rocker arm 63 drives the positioning claw base 64 to synchronously slide towards the outside of the positioning clamping seat in the track chute 33; the three positioning claws 41 of the center positioning device 4 are simultaneously spread to be contacted with the cavity reference specified by the turbocharger shell to be processed for centering and then clamped, so that the position of the center of the product runner on the positioning and clamping device is unique and the primary positioning and fixing are finished;
starting three linear cylinders of the end face Z-direction positioning and jacking device 5, enabling piston rods of the three linear cylinders to extend synchronously and simultaneously jack up the lower end face of the turbocharger housing to be processed, realizing the end face Z-direction upward jacking and clamping of the turbocharger housing to be processed, so as to finish the center positioning, step reference positioning and end face Z-direction jacking and clamping of the turbocharger housing to be processed, and enabling the position of a product on the positioning and clamping device to be unique and finish the accurate positioning and fastening before processing.
After the machining is finished, the hydraulic cylinder of the power source 7 and the three linear cylinders of the end face Z-direction positioning and jacking device 5 are started, the piston rods of the hydraulic cylinders move backwards to drive the transmission push rods 61 to move backwards, the rocker arm pull rods 62 move downwards in the middle round holes 31 of the positioning and clamping seat 3, the rocker arm pull rods 62 pull the three positioning claw rocker arms 63 to rotate around the pin shafts at the same time, the upper arms 632 of the positioning claw rocker arms 63 stir the three positioning claw bases 64 to slide towards the center of the positioning and clamping seat synchronously in the track sliding grooves 33, the three positioning claws 41 of the center positioning device 4 are finally folded at the center of the positioning and clamping seat, the piston rods of the three linear cylinders move downwards to retract into the cylinder body, the machined turbocharger housing is loosened in the positioning and clamping device, the workpiece is removed, and the machining of the product is completed.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (9)
1. The utility model provides a high accurate positioning clamping device of turbo charger casing, includes base, its characterized in that: the device also comprises a positioning and clamping seat arranged on the base, a central positioning device, a transmission mechanism and an end face Z-direction positioning and jacking device which are arranged on the positioning and clamping seat, and a power source which is arranged on the base and is connected with the transmission mechanism and used for driving the central positioning device to act on the positioning and clamping seat;
the central positioning device comprises at least three positioning claws which are arranged on the positioning clamping seat in a sliding manner, and the positioning claws are uniformly distributed in a circumference manner; the top end of the positioning claw is provided with a Z-direction positioning block for positioning a step reference of a workpiece to be processed, and an outer circle positioning point for positioning the center of the workpiece to be processed is arranged on the positioning claw at a position right below the Z-direction positioning block; the positioning claw is connected with a power source through a transmission mechanism, and can synchronously slide on the positioning clamping seat to perform opening and closing actions under the power action of the power source;
the end face Z-direction positioning and jacking device comprises driving cylinders which are circumferentially distributed on the positioning and clamping seat, the number of the driving cylinders is not less than three, the driving cylinders are fixedly arranged at the upper end part of the positioning and clamping seat through cylinder bodies of the driving cylinders, and piston rods of the driving cylinders extend out and can be jacked on the lower end face of a workpiece to be processed.
2. The turbocharger housing high-precision positioning and clamping device of claim 1, wherein: the transmission mechanism comprises a transmission push rod, a rocker arm pull rod, a positioning claw rocker arm and a positioning claw base, one end of the transmission push rod is connected to a power source, and the other end of the transmission push rod is connected with the rocker arm pull rod; the rocker arm pull rod is arranged in the positioning clamping seat in a sliding manner and is positioned in the center of the circle where the positioning claw is positioned; the positioning claw rocker arm is rotatably arranged in the positioning clamping seat and is provided with a lower arm and an upper arm; the positioning claw bases are arranged at the upper end parts of the positioning clamping seats in a sliding manner, and the three positioning claws are respectively arranged on the three positioning claw bases; the upper arm and the lower arm of the positioning claw rocker arm are respectively connected with the positioning claw base and the rocker arm pull rod.
3. The turbocharger housing high-precision positioning and clamping device of claim 2, wherein: the one end that the power source was kept away from to the transmission push rod is provided with T shape inclined plane, the lower extreme of rocking arm pull rod is provided with and transmits push rod T type inclined plane assorted inclined plane T-shaped groove, transmission push rod and rocking arm pull rod are cross sliding connection through T type inclined plane and inclined plane T-shaped groove matched with.
4. The turbocharger housing high-precision positioning and clamping device of claim 2, wherein: an annular groove is formed in one end, far away from the transmission push rod, of the rocker arm pull rod, and the lower arm of the positioning claw rocker arm is clamped in the annular groove of the rocker arm pull rod.
5. The turbocharger housing high-precision positioning and clamping device of claim 2, wherein: the lower part of the positioning claw base is provided with a rocker arm straight groove, and the upper arm of the positioning claw rocker arm is clamped in the rocker arm straight groove of the positioning claw base.
6. The turbocharger housing high-precision positioning and clamping device of claim 2, wherein: the positioning claw rocker arm is arranged in the positioning clamping seat in a penetrating mode through the pin shaft.
7. The turbocharger housing high-precision positioning and clamping device of claim 2, wherein: the upper end of the positioning clamping seat is provided with a track chute for installing a positioning claw base, and the positioning claw base is arranged in the track chute in a sliding way.
8. The turbocharger housing high-precision positioning and clamping device of claim 7, wherein: the positioning clamping seat is characterized in that sliding rails are arranged at the opposite positions of two side walls of the track sliding groove on the positioning clamping seat, sliding grooves are formed in two side faces of the positioning claw base, and the positioning claw base is slidably mounted in the track sliding groove through the matching of the sliding grooves and the sliding rails.
9. The turbocharger housing high-precision positioning and clamping device of claim 1, wherein: the outer circle positioning point is a spherical bulge or an arc surface bulge arranged on the positioning claw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223483761.6U CN219075000U (en) | 2022-12-26 | 2022-12-26 | High-precision positioning and clamping device for turbocharger shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223483761.6U CN219075000U (en) | 2022-12-26 | 2022-12-26 | High-precision positioning and clamping device for turbocharger shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219075000U true CN219075000U (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223483761.6U Active CN219075000U (en) | 2022-12-26 | 2022-12-26 | High-precision positioning and clamping device for turbocharger shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219075000U (en) |
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2022
- 2022-12-26 CN CN202223483761.6U patent/CN219075000U/en active Active
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