CN116276220A

CN116276220A - Transmission planet carrier reaming clamping machining device

Info

Publication number: CN116276220A
Application number: CN202310129613.4A
Authority: CN
Inventors: 伍绍奎
Original assignee: Yibin Tiangong Machinery Co ltd
Current assignee: Yibin Tiangong Machinery Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-23

Abstract

The invention provides a reaming clamping processing device for a transmission planet carrier, and relates to the technical field of transmission planet carrier processing devices. The transmission planet carrier reaming clamping machining device comprises a bottom plate, a plurality of clamping machining mechanisms are arranged on the bottom plate at equal intervals, each clamping machining mechanism comprises a positioning disc, a main cylinder body is fixedly connected to the middle of the bottom end of each positioning disc, a base is fixedly connected to the bottom end of each main cylinder body, a piston I is arranged at the middle lower part of the inner side of each main cylinder body, a piston III is arranged at the middle lower part of the inner side of each main cylinder body, and a workpiece is arranged at the middle of the top end of each positioning disc. The center reference error of the transmission planet carrier during machining is reduced by adopting the middle expansion core to automatically center and clamp the workpiece before machining, the workpiece is clamped and fixed by end face automatic compression, the positioning error is small, the planet carrier machining accuracy is high, and the normal operation of the new energy hybrid transmission is convenient to meet.

Description

Transmission planet carrier reaming clamping machining device

Technical Field

The invention relates to the technical field of a processing device for a planetary carrier of a speed changer, in particular to a reaming clamping processing device for the planetary carrier of the speed changer.

Background

With the rapid development of new energy automobiles, especially the continuous breakthrough of battery capacity technology in electric automobiles, the impact of traditional internal combustion engines is larger and larger, the planetary mechanism planetary frame sub-assembly produced by the main machine is carried on a 3-gear hybrid electric drive transmission DHTPro, 1 generating motor and 1 driving motor, 2 motor controllers and a 3-gear speed ratio speed-changing torque increasing machine are highly integrated in the size of 354mm in the axial direction, so that the hybrid electric drive transmission is not only a pure transmission, but also an intelligent energy control center of an independent participation electric drive system, and can realize the powerful functions of pure electric drive, oil-electric hybrid drive, intelligent power generation, intelligent energy distribution and 3-gear speed-changing torque increasing, so that electricity and fuel are subjected to 'lossless' high-quality output, and can realize 20 intelligent working modes of self-learning and self-adaption, and the 3-gear hybrid electric drive TPro is a hybrid special transmission with strong actual power in the aspects of compactness and intelligence, and really realizes the fuel saving and comfort control in the hybrid transmission.

The main types of the automobile speed changer are a manual speed changer, an electric control hydraulic automatic speed changer, an electric control mechanical automatic speed changer, an electric control stepless automatic speed changer, an electric control double-clutch automatic speed changer and the like, wherein the basic working principle of the electric control hydraulic automatic speed changer is as follows: under the condition that the rotation speed of a driving shaft of an automobile is unchanged, a driven shaft is enabled to obtain a plurality of rotation speeds by utilizing a planetary gear train, a single-row planetary gear mechanism has two degrees of freedom, and in three basic components of a sun gear, a gear ring and a planet carrier, two optional components are respectively used as a driving piece and a driven piece, the other component is fixed, even if the rotation speed of the component is 0 or the motion of the component is constrained to a certain degree, the mechanism has only one degree of freedom, the whole gear train transmits power in a certain transmission ratio, so that the aim of variable speed transmission is fulfilled, the planet carrier is one of key parts of the new energy hybrid power transmission, and therefore, the precision requirement of the planet carrier in the processing process is high, the normal operation of the new energy hybrid power transmission can be met.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a reaming clamping processing device for a transmission planet carrier, which solves the problem of lower processing accuracy of the transmission planet carrier.

In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a derailleur planet carrier reaming presss from both sides tight processingequipment, includes the bottom plate, the equidistance is provided with a plurality of and presss from both sides tight processing mechanism on the bottom plate, press from both sides tight processing mechanism and include the positioning disk, the bottom middle part fixedly connected with master cylinder body of positioning disk, the bottom fixed connection base of master cylinder body, the inboard lower part of master cylinder body is provided with piston one, the inboard lower part of master cylinder body is close to the edge and is provided with piston three, the top middle part of positioning disk is provided with the work piece, the middle part of positioning disk is provided with the dabber, the inboard of dabber is provided with pull rod one, just the bottom fixed connection of pull rod one is at the middle part of piston one, the inboard middle part of pull rod one is provided with pull rod two, just the bottom of pull rod two runs through the middle part of piston one and with the middle part fixed connection of piston three, the well upper portion of pull rod two is provided with the clamp plate.

Preferably, the middle part of one side of the top of the base is fixedly connected with the bottom end of the auxiliary cylinder body, the middle lower part of the inner side of the auxiliary cylinder body is provided with a second piston, the middle part of the second piston is fixedly connected with one end of a pull rod, the other end of the pull rod sequentially penetrates through the bottom plate and the positioning disc and extends outwards, and the top end of the pull rod is provided with an error-proof pin.

Preferably, the top end of the bottom plate is fixedly connected with a plurality of groups of positioning blocks at equal intervals, and the top ends of the positioning blocks respectively penetrate through the positioning plates at corresponding positions and extend outwards.

Preferably, a plurality of groups of hydraulic clamps are arranged at the top end of the bottom plate at equal intervals, and a plurality of support columns are fixedly connected at the front side edge and the rear side edge of the bottom end of the bottom plate at equal intervals.

Working principle: when the transmission planet carrier is machined, a worker installs and fixes the positioning plate after aligning the positioning block and the error-proof pin on the bottom plate by the clamping machining mechanism, then clamps and fixes the clamping machining mechanism on the bottom plate again through the hydraulic clamp on the bottom plate, oil-way pipelines on the whole device are connected, then the starting device is started, after the air tightness detection is qualified, the transmission planet carrier can be used, the first piston in the main cylinder moves and simultaneously pulls the first pull rod to synchronously move, the first pull rod drives the mandrel to expand while moving in the mandrel, so that a workpiece on the positioning plate is centered, the second piston in the auxiliary cylinder moves downwards, the second piston synchronously drives the error-proof pin to synchronously move downwards through the pull rod, the third piston in the main cylinder simultaneously drives the pressing plate to synchronously move downwards, the end face of the workpiece is clamped while the pressing plate moves downwards, therefore the clamping operation of the workpiece is completed, after the workpiece machining is completed, the main cylinder and the piston in the auxiliary cylinder reversely move, the workpiece is loosened, and then the pressing plate is taken out, and one machining cycle is completed.

The invention provides a reaming and clamping machining device for a planet carrier of a speed changer. The beneficial effects are as follows:

1. according to the invention, the workpiece is automatically centered and clamped before machining by adopting the middle expansion core, so that the center reference error of the transmission during machining of the planet carrier is reduced, the workpiece is automatically clamped and fixed by end face automatic compression, the positioning error is small, the planet carrier machining accuracy is high, and the normal operation of the new energy hybrid transmission is conveniently satisfied.

2. The invention adopts a multi-station arrangement mode, so that the overall device has compact layout and high processing efficiency.

3. According to the invention, the hydraulic clamping mode is adopted to fix the processing mechanism, so that the clamping efficiency is high, and the processing treatment of the transmission planet carrier is facilitated.

Drawings

FIG. 1 is a schematic cross-sectional view of the internal structure of the clamping mechanism of the present invention;

FIG. 2 is a schematic side view of the clamping mechanism of the present invention;

FIG. 3 is a schematic elevational view of the overall apparatus of the present invention;

fig. 4 is a schematic top view of the whole device of the present invention.

1, clamping a processing mechanism; 101. a first pull rod; 102. a pressing plate; 103. a mandrel; 104. a second pull rod; 105. an error-proof pin; 106. a positioning plate; 107. a positioning block; 108. a first piston; 109. a second piston; 110. a third piston; 111. a base; 112. a main cylinder; 113. an auxiliary cylinder; 2. a bottom plate; 3. a support column; 4. a hydraulic clamp; 5. a workpiece.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Examples:

as shown in fig. 1-4, an embodiment of the invention provides a transmission planet carrier reaming clamping processing device, which comprises a bottom plate 2, wherein a plurality of clamping processing mechanisms 1 are equidistantly arranged on the bottom plate 2, each clamping processing mechanism 1 comprises a positioning disc 106, a main cylinder 112 is fixedly connected to the middle of the bottom end of the positioning disc 106, the bottom end of the main cylinder 112 is fixedly connected with a base 111, a piston one 108 is arranged at the middle lower part of the inner side of the main cylinder 112, a piston three 110 is arranged at the middle lower part of the inner side of the main cylinder 112 close to the edge, a workpiece 5 is arranged at the middle part of the top end of the positioning disc 106, a mandrel 103 is arranged at the middle part of the positioning disc 106, a pull rod one 101 is arranged at the inner side of the mandrel 103, the bottom end of the pull rod one 101 is fixedly connected to the middle part of the piston one 108, a pull rod two 104 is arranged at the middle part of the inner side of the pull rod one 101, the bottom end of the pull rod two 104 penetrates through the middle part of the piston one 108 and is fixedly connected with the middle part of the piston three 110, and a pressing plate 102 is arranged at the middle upper part of the pull rod two 104.

When clamping the workpiece 5, the first piston 108 in the main cylinder 112 moves and simultaneously pulls the first pull rod 101 to synchronously move, the first pull rod 101 moves in the mandrel 103 and simultaneously drives the mandrel 103 to expand, so that the workpiece 5 on the positioning disc 106 is centered, then the third piston 110 in the main cylinder 112 moves downwards and simultaneously drives the pressing plate 102 to synchronously move downwards through the second pull rod 104, and the pressing plate 102 moves downwards and simultaneously clamps the end face of the workpiece 5, so that the clamping operation of the workpiece 5 is completed, and a worker can process the workpiece 5.

The device has the advantages that the end face is attached to the air tightness detection, the error proofing and fool proofing pin shaft is arranged at the angle of the workpiece, a machine tool cabin door starting program is closed, the expansion core is pulled by the expansion core pull-down cylinder of the multi-layer hydraulic cylinder to realize the interference positioning of the center of the workpiece, the end face is pressed by the end face to press the pull-down cylinder to pull down the combined quick-change pressing block, the end face of the workpiece 5 is pressed and positioned, the automatic processing is started after the end face air tightness detection is qualified, the end face combined quick-change pressing block is automatically lifted after the processing is finished, the workpiece 5 is taken out after the processing cycle is finished, and the processing efficiency is high.

The device can realize finish machining of the rear planetary mechanism planet carrier sub-assembly 5-phi 18 holes after the workpiece 5 is machined, can ensure that the hole diameter phi 18 (+ 0.018/0), the phi 18 hole cylindricity degree 0.015, the phi 18 hole position degree phi 0.05 and the phi 18 hole verticality degree 0.02 simultaneously, can finish machining of phi 18 hole rough milling, hole chamfering angle, hole bottom angle, finish reaming and finish milling hole riveting grooves once, has small center reference error of the transmission planet carrier after machining, is unified with the drawing requirement reference, and the verticality reference is matched with the drawing, thereby facilitating the machining operation of the transmission planet carrier by workers.

The middle part of one side of the top end of the base 111 is fixedly connected to the bottom end of the auxiliary cylinder body 113, a second piston 109 is arranged at the middle lower part of the inner side of the auxiliary cylinder body 113, the middle part of the second piston 109 is fixedly connected to one end of a pull rod, the other end of the pull rod sequentially penetrates through the bottom plate 2 and the positioning disc 106 and extends outwards, and an error-proofing pin 105 is arranged at the top end of the pull rod.

The top end of the bottom plate 2 is fixedly connected with a plurality of groups of positioning blocks 107 at equal intervals, and the top ends of the positioning blocks 107 respectively penetrate through the positioning discs 106 at corresponding positions and extend outwards.

When the transmission planet carrier workpiece 5 is machined, the clamping machining mechanism 1 is installed on the bottom plate 2 according to the machining yield, a worker can position the installed clamping machining mechanism 1 through the positioning block 107 on the bottom plate 2, then the piston II 109 in the auxiliary cylinder 113 moves downwards, the error-proof pin 105 is synchronously driven to move downwards through the pull rod, and the positioning disc 106 on the clamping machining mechanism 1 is positioned again, so that the machining operation of the subsequent workpiece 5 is facilitated.

The top equidistance of bottom plate 2 is provided with a plurality of hydraulic clamp 4 of group, and the side edge department equidistance fixedly connected with a plurality of support column 3 around the bottom of bottom plate 2.

The whole device clamps and positions the clamping processing mechanism 1 on the bottom plate 2 through the hydraulic clamps 4 of the plurality of groups, so that the stability of the whole device in processing work is improved, the whole device is supported at the bottom through the support column 3 at the lower end of the bottom plate 2, meanwhile, the running stability of the whole device can be improved, and the processing work of the transmission planet carrier is facilitated.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a derailleur planet carrier reaming presss from both sides tight processingequipment, includes bottom plate (2), its characterized in that: equidistance is provided with a plurality of clamp processing mechanism (1) on bottom plate (2), clamp processing mechanism (1) including positioning disk (106), the bottom middle part fixedly connected with master cylinder body (112) of positioning disk (106), the bottom fixed connection base (111) of master cylinder body (112), the inboard middle lower part of master cylinder body (112) is provided with piston one (108), the inboard middle lower part of master cylinder body (112) is close to the edge and is provided with piston three (110), the top middle part of positioning disk (106) is provided with work piece (5), the middle part of positioning disk (106) is provided with dabber (103), the inboard of dabber (103) is provided with pull rod one (101), just the bottom fixed connection of pull rod one (101) is at the middle part of piston one (108), the inboard middle part of pull rod one (101) is provided with pull rod two (104), just the bottom of pull rod two (104) runs through the middle part of piston one (108) and with the middle part fixed connection of piston three (110), the upper portion of push plate (104) is provided with pull rod one (102).

2. A transmission planet carrier reaming clamping machining device as claimed in claim 1, wherein: the middle part of top one side of base (111) fixed connection is in the bottom of vice cylinder body (113), the inboard middle lower part of vice cylinder body (113) is provided with piston two (109), the middle part fixed connection of piston two (109) is in the one end of pull rod, the other end of pull rod runs through bottom plate (2) and positioning disk (106) in proper order and outwards extends, the top of pull rod is provided with mistake proofing round pin (105).

3. A transmission planet carrier reaming clamping machining device as claimed in claim 1, wherein: the top end of the bottom plate (2) is fixedly connected with a plurality of groups of positioning blocks (107) at equal intervals, and the top ends of the positioning blocks (107) respectively penetrate through positioning discs (106) at corresponding positions and extend outwards.

4. A transmission planet carrier reaming clamping machining device as claimed in claim 1, wherein: the top equidistance of bottom plate (2) is provided with a plurality of hydraulic clamp (4) of group, the bottom front and back side limit department equidistance fixedly connected with a plurality of support column (3) of bottom plate (2).