Positioning pin of pcu intermediate housing and elbow press fitting machine and press fitting method thereof

Abstract

The application relates to the technical field of intelligent manufacturing, in particular to a positioning pin of a PCU intermediate shell and a bent pipe press-fitting machine and a press-fitting method thereof, which realizes the integrated automation of the positioning pin press-fitting and the bent pipe glue coating press-fitting of the PCU intermediate shell by designing a first horizontal guide rail with a specific position relationship, a movable positioning seat, a first driving piece, a positioning pin press-fitting mechanism, a lower pressing positioning seat, a second driving piece, a bent pipe press-fitting mechanism and a bent pipe glue coating mechanism, and improves the working efficiency and machining precision of the positioning pin press-fitting and the bent pipe press-fitting of the PCU intermediate shell.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent manufacturing, in particular to a positioning pin of a PCU intermediate shell and a pipe bending and pressing machine and a pressing method thereof. BACKGROUND

[0002] PCU, namely power control unit, functions as a control unit of a motor for controlling a hybrid vehicle, an electric vehicle in starting, accelerating and decelerating and driving;

[0003] Before being assembled with other PCU components, the PCU middle cover needs to be pressed with positioning pins and bent pipes, and in the prior art, the pressing of the positioning pins and the bending of the pipes of the PCU middle cover are mainly completed by manual cooperation with a hammer or other pressing tools, the pressing precision mainly depends on the skill and proficiency of workers, and the pressing of the positioning pins and the bending of the pipes need to be distributed, and the PCU middle cover needs to be pressed with positioning pins at multiple positions, if the pressing precision of one positioning pin is deviated, the whole PCU middle cover will be scrapped, and the processing efficiency is low. SUMMARY

[0004] The technical problem to be solved by the present application is how to improve the working efficiency and processing precision of the pressing of the positioning pins and the bending of the pipes of the PCU intermediate shell.

[0005] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0006] A pipe bending and pressing machine for positioning pins of a PCU intermediate shell, comprising:

[0007] a base;

[0008] a first horizontal guide rail connected to the base;

[0009] a movable positioning seat connected to the first horizontal guide rail, the movable positioning seat being used for positioning and placing the PCU intermediate shell, the positioning seat being provided with one or more vertical avoiding holes;

[0010] a first driving member connected to the base and connected to the movable positioning seat, the first driving member being used for driving the movable seat to move along the first horizontal guide rail;

[0011] a positioning pin pressing mechanism arranged on the base, the positioning pin pressing mechanism being used for pressing the pins from bottom to top into the corresponding pin holes of the PCU intermediate shell through the through holes of the movable positioning seat;

[0012] A lower pressing positioning seat is arranged above the first horizontal guide rail, and is used for pressing the upper part of the PCU middle shell from top to bottom.

[0013] A second driving member is connected to the base, connected to the lower pressing positioning seat, and used for driving the lower pressing positioning seat to move in the vertical direction.

[0014] A bent pipe pressing mechanism is arranged on one side of the first horizontal guide rail, and comprises a bent pipe positioning seat and a third driving member. The bent pipe positioning seat is connected to the third driving member, and is used for positioning and placing the bent pipe body. The moving direction of the third driving member is perpendicular to the horizontal direction of the first horizontal guide rail. The third driving seat is used for driving the bent pipe positioning seat to move, so that the bent pipe body placed by the bent pipe positioning seat is pressed into the corresponding interface of the side part of the PCU middle shell.

[0015] The bent pipe glue coating mechanism comprises a transfer robot and a positioning glue coating assembly. The positioning glue coating assembly comprises a support seat and a glue dispenser. The glue dispenser is connected to the support seat. The transfer robot is arranged on one side of the base, and is used for clamping the bent pipe body to be pressed and transported to the pressing part to coat glue on the needle head of the glue dispenser. After coating, the bent pipe body is clamped and transported to the bent pipe positioning seat.

[0016] Further, in the positioning pin and bent pipe pressing mechanism structure of the PCU middle shell, the bent pipe pressing mechanism further comprises a moving seat, a second horizontal guide rail and a fourth driving member. The second horizontal guide rail is arranged on one side of the first horizontal guide rail. The moving seat is in sliding fit connection with the second horizontal guide rail. The fourth driving member is connected to the base, and is used for driving the moving seat to move along the second horizontal guide rail. The third driving member is connected to the moving seat.

[0017] Further, in the positioning pin and bent pipe pressing mechanism structure of the PCU middle shell, the positioning glue coating assembly further comprises a bent pipe rotary limiting member. The bent pipe rotary limiting member is provided with a rotary body groove in limiting fit with the connecting end of the bent pipe body which needs to be coated with glue. The axis of the rotary body groove intersects and is perpendicular to the axis of the needle head of the glue dispenser.

[0018] Further, in the positioning pin and bent pipe pressing mechanism structure of the PCU middle shell, the side wall of the rotary body groove is provided with a bearing.

[0019] Further, in the positioning pin and bent pipe pressing mechanism structure of the PCU middle shell, the positioning pin pressing mechanism comprises:

[0020] The positioning pin press-fit connecting seat is connected in the groove of the base, the inside of the positioning pin press-fit connecting seat is provided with a horizontal direction moving channel, the upper part of the positioning pin press-fit connecting seat is provided with a tapered blanking through hole which is communicated with the moving channel, the upper part of the positioning pin press-fit connecting seat is provided with a first cylindrical through hole which is communicated with the moving channel, the lower part of the positioning pin press-fit connecting seat is provided with a second cylindrical through hole which is communicated with the moving channel, and the second cylindrical through hole is coincided with the axis of the first cylindrical through hole;

[0021] The first feeding pipe is horizontally arranged on the upper part of the positioning pin press-fit connecting seat, and a plurality of to-be-press-fit positioning pin bodies are radially arranged in a line in the feeding pipe.

[0022] The first cylinder is vertically arranged above the tapered blanking channel.

[0023] The second cylinder is vertically arranged below the second cylindrical through hole.

[0024] The positioning pin transfer support is arranged in the moving channel, and the positioning pin transfer support comprises a sliding part and a jacking part.

[0025] The third cylinder is connected with the sliding part of the positioning pin transfer support through a piston rod, and is used for driving the sliding part to move in the moving channel.

[0026] The present application also protects the positioning pin of the PCU intermediate shell and the press-fit method of the pipe press-fit machine.

[0027] Step 1: position and place the PCU intermediate shell on the movable positioning seat.

[0028] Step 2: control the first driving part to drive the movable positioning seat to move along the first horizontal guide rail to the upper part of the positioning pin press-fit mechanism.

[0029] Step 3: control the second driving part to drive the lower positioning seat to move downward, and press and position the upper part of the PCU intermediate shell positioned and placed on the movable positioning seat.

[0030] Step 4: the control positioning pin press-fitting mechanism presses the pin into the corresponding pin hole of the PCU middle shell from bottom to top through the through hole of the movable positioning seat;

[0031] Step 5: the control transfer robot clamps the elbow pipe body and transports it to the alignment point of the press-fitting part to align the needle head of the glue dispenser, controls the transfer robot to rotate the elbow pipe body, controls the glue dispenser to uniformly dispense glue to the outer circle of the press-fitting part of the elbow pipe body, controls the transfer robot to transport the elbow pipe body after dispensing to the elbow pipe positioning seat, controls the third driving member to move the elbow pipe positioning seat so that the elbow pipe body on the elbow pipe positioning seat is pressed into the corresponding insertion hole of the PCU middle shell.

[0032] Further, in the positioning pin and the press-fitting method of the elbow pipe press-fitting machine of the PCU middle shell, the step 5 is specifically:

[0033] The control transfer robot clamps the elbow pipe body and transports it to the alignment point of the press-fitting part to align the needle head of the glue dispenser, controls the transfer robot to rotate the elbow pipe body, controls the glue dispenser to uniformly dispense glue to the outer circle of the press-fitting part of the elbow pipe body, controls the transfer robot to transport the elbow pipe body after dispensing to the elbow pipe positioning seat, controls the third driving member to move the elbow pipe positioning seat so that the elbow pipe body on the elbow pipe positioning seat is pressed into the corresponding insertion hole of the PCU middle shell. The control transfer robot clamps the next elbow pipe body, transports it to the alignment point of the press-fitting part to align the needle head of the glue dispenser, and then transports the elbow pipe body to the elbow pipe positioning seat after gluing. The control fourth driving member drives the moving seat to move along the second horizontal guide rail so that the elbow pipe body faces the other corresponding insertion hole of the PCU middle shell. The control third driving member drives the elbow pipe positioning seat to move so that the elbow pipe body on the elbow pipe positioning seat is pressed into the corresponding insertion hole of the PCU middle shell.

[0034] Further, in the positioning pin and the press-fitting method of the elbow pipe press-fitting machine of the PCU middle shell, in the step 5, when the control transfer robot clamps the elbow pipe body and transports it to the alignment point of the press-fitting part to align the needle head of the glue dispenser, the end of the press-fitting part of the elbow pipe body is coaxially connected to the bearing of the groove side wall of the rotary body.

[0035] Further, in the positioning pin and the press-fitting method of the elbow pipe press-fitting machine of the PCU middle shell, the step 4 is specifically:

[0036] The control third cylinder drives the positioning pin moving support to move to the position directly below the conical blanking through hole;

[0037] The first feeding pipe drops one end of the positioning pin body into the conical blanking channel. The control first cylinder pushes the positioning pin body dropped into the conical blanking channel into the blind hole of the jacking part of the positioning pin moving support;

[0038] The third cylinder drives the positioning pin moving support to move to the position right below the first cylindrical through hole;

[0039] The second cylinder drives the jacking part of the positioning pin moving support to move upward along the first cylindrical through hole, and the positioning pin body is pressed into the corresponding pin hole of the PCU middle shell through the avoiding hole of the movable positioning seat.

[0040] The PCU middle shell positioning pin and the elbow pipe press fitting machine of the present application have the following beneficial effects: through the design of the first horizontal guide rail, the movable positioning seat, the first driving part, the positioning pin press fitting mechanism, the lower positioning seat, the second driving part, the elbow pipe press fitting mechanism, the elbow pipe glue coating mechanism and the like in a specific positional relationship, the integration automation of the positioning pin press fitting of the PCU middle shell and the elbow pipe glue coating press fitting is realized, and the working efficiency and the machining precision of the PCU middle shell positioning pin press fitting and the elbow pipe press fitting are improved. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 It is a structure schematic view of a PCU middle shell positioning pin and an elbow pipe press fitting machine according to the embodiment of the present application;

[0042] Figure 2 It is a partial structure schematic view of a PCU middle shell positioning pin and an elbow pipe press fitting machine according to the embodiment of the present application;

[0043] Figure 3 It is a structure schematic view of a positioning pin press fitting mechanism of a PCU middle shell positioning pin and an elbow pipe press fitting machine according to the embodiment of the present application;

[0044] Figure 4 It is a partial structure front view of a positioning pin press fitting mechanism of a PCU middle shell positioning pin and an elbow pipe press fitting machine according to the embodiment of the present application;

[0045] Figure 5 It is an enlarged view of A part of Figure 4

[0046] Label explanation:

[0047] ​1, base; 2, first horizontal guide rail; 3, movable positioning seat; 31, avoiding hole; 4, first driving part; 5, positioning pin press-fitting mechanism; 51, positioning pin press-fitting connecting seat; 511, moving channel; 512, conical blanking through hole; 513, first cylindrical through hole; 514, second cylindrical through hole; 52, first feeding pipeline; 53, first air cylinder; 54, second air cylinder; 55, positioning pin transfer support; 551, sliding part; 552, jacking part; 5521, blind hole; 56, third air cylinder; 6, downward pressing positioning seat; 7, second driving part; 8, elbow press-fitting mechanism; 81, elbow positioning seat; 82, third driving part; 83, moving seat; 84, second horizontal guide rail; 85, fourth driving part; 9, elbow glue coating mechanism; 91, transfer robot; 92, positioning glue coating assembly; 921, supporting seat; 922, glue dispenser; 923, elbow rotation limiting part; 9231, revolute recess; 9232, bearing; 10, positioning pin body; 11, elbow body. DETAILED DESCRIPTION

[0048] To make the technical contents of the present application, the purposes and effects achieved more clear, the following will be described in detail in combination with the embodiments and the accompanying drawings.

[0049] Please refer to Figures 1 to 5 The present application relates to a positioning pin and elbow press-fitting machine for PCU intermediate shell, comprising:

[0050] Base 1;

[0051] First horizontal guide rail 2, the first horizontal guide rail 2 is connected to base 1;

[0052] Movable positioning seat 3, the movable positioning seat 3 is connected to first horizontal guide rail 2, the movable positioning seat 3 is used for positioning placing PCU intermediate shell, the positioning seat is provided with more than one avoiding hole 31 in vertical direction;

[0053] First driving part 4, the first driving part 4 is connected to base 1, the first driving part 4 is connected to movable positioning seat 3, the first driving part 4 is used for driving movable seat to move along first horizontal guide rail 2; the first driving part 4 can be air cylinder, hydraulic cylinder, electric cylinder or lead screw.

[0054] Positioning pin press-fitting mechanism 5, the positioning pin press-fitting mechanism 5 is arranged in base 1, the positioning pin press-fitting mechanism 5 is used for pin from below to above through the through hole of movable positioning seat 3 and is pressed into the corresponding pin hole of PCU intermediate shell; as an embodiment, the positioning pin press-fitting mechanism 5 is connected with vibration disc through pipeline, the positioning pin body 10 is sequentially arranged through pipeline by vibration disc, and is transported to the positioning pin press-fitting mechanism 5;

[0055] A lower pressing positioning seat 6 is arranged above the first horizontal guide rail 2, and is used for pressing the PCU middle shell upper part from top to bottom.

[0056] A second driving member 7 is connected to the base 1, is connected to the lower pressing positioning seat 6, and is used for driving the lower pressing positioning seat 6 to move in the vertical direction. The second driving member 7 can be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder or a lead screw.

[0057] A bent pipe pressing mechanism 8 is arranged on one side of the first horizontal guide rail 2, and includes a bent pipe positioning seat 81 and a third driving member 82. The bent pipe positioning seat 81 is connected to the third driving member 82, is used for positioning and placing the bent pipe body 11, and the moving direction of the third driving member 82 is perpendicular to the horizontal direction of the first horizontal guide rail 2. The third driving member 82 is used for driving the bent pipe positioning seat 81 to move, so that the bent pipe body 11 placed by the bent pipe positioning seat 81 is pressed into the corresponding interface of the side of the PCU middle shell. The third driving member 82 can be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder or a lead screw. The bent pipe positioning seat 81 is provided with an L-shaped groove matched with the outer contour of the bent pipe, and the bent pipe body 11 is positioned and placed in the L-shaped groove.

[0058] A bent pipe glue coating mechanism 9 includes a transfer robot 91 and a positioning glue coating assembly 92. The positioning glue coating assembly 92 includes a support seat 921 and a glue dispenser 922, and the glue dispenser 922 is connected to the support seat 921. The transfer robot 91 is arranged on one side of the base 1, is used for clamping the bent pipe body 11 to be pressed, and is used for conveying the bent pipe body 11 to the glue coating position to align the needle head of the glue dispenser 922 to perform glue coating. After glue coating, the bent pipe body 11 is clamped and conveyed to the bent pipe positioning seat 81. The structure of the glue dispenser 922 is a prior art, and the specific structure will not be described here. It is known that the glue dispenser 922 has a needle head for glue discharge, and the glue is controlled to flow out of the needle head by a controller to play a glue coating role.

[0059] As a preferred embodiment, the bent pipe pressing mechanism 8 further includes a moving seat 83, a second horizontal guide rail 84 and a fourth driving member 85. The second horizontal guide rail 84 is arranged on one side of the first horizontal guide rail 2, the moving seat 83 is in sliding fit connection with the second horizontal guide rail 84, the fourth driving member 85 is connected to the base 1, is used for driving the moving seat 83 to move along the second horizontal guide rail 84, and the third driving member 82 is connected to the moving seat 83.

[0060] In the above structure, the fourth driving member 85 can be a cylinder, a hydraulic cylinder, an electric cylinder or a lead screw; through the structure of the fourth driving member 85 and the second horizontal guide rail 84, the elbow positioning seat 81 can be used for the press-fitting of two elbows in two insertion holes on one side of the middle shell of the PCU.

[0061] As a preferred embodiment, the positioning and gluing assembly 92 further comprises an elbow rotation limiting member 923, which is provided with a rotary body groove 9231 limiting and cooperating with the connecting end of the elbow body 11 which needs to be glued, and the axis of the rotary body groove 9231 intersects and is perpendicular to the axis of the needle of the glue dispenser 922.

[0062] In the above structure, the rotary body groove 9231 is used for limiting when the elbow body 11 is glued, so that the elbow body 11 clamped by the transfer robot 91 abuts against the rotary body groove 9231 to limit, and the gluing of one end of the elbow body 11 is more uniform.

[0063] As a preferred embodiment, the side wall of the rotary body groove 9231 is provided with a bearing 9232.

[0064] In the above structure, when the elbow body 11 is glued, one end of the elbow body 11 is connected with the bearing 9232 in the rotary body groove 9231 to realize rotatable limiting cooperation, and the gluing of one end of the elbow body 11 is more uniform.

[0065] As a preferred embodiment, the positioning pin press-fitting mechanism 5 comprises:

[0066] The positioning pin press-fitting connecting seat 51 is provided with a groove on the upper part of the base 1, the positioning pin press-fitting connecting seat 51 is connected in the groove of the base 1, the inside of the positioning pin press-fitting connecting seat 51 is provided with a horizontal moving channel 511, the upper part of the positioning pin press-fitting connecting seat 51 is provided with a tapered blanking through hole 512 communicating with the moving channel 511, the upper part of the positioning pin press-fitting connecting seat 51 is provided with a first cylindrical through hole 513 communicating with the moving channel 511, the lower part of the positioning pin press-fitting connecting seat 51 is provided with a second cylindrical through hole 514 communicating with the moving channel 511, and the axis of the second cylindrical through hole 514 coincides with that of the first cylindrical through hole 513.

[0067] The first feeding pipe 52 is horizontally arranged on the upper part of the positioning pin press-fitting connecting seat 51, and a plurality of positioning pin bodies 10 to be press-fitted are radially arranged in a line in the feeding pipe, and the end of the first feeding pipe 52 is located on one side above the tapered blanking through hole.

[0068] Need to explain, the first feeding pipe 52 of the beginning of the upper connection has a material guide pipe, the beginning of the material guide pipe is connected to the discharge end of the vibrating disc, the positioning pin body 10 in the vibrating disc is distributed in the material guide pipe in turn, the beginning of the first feeding pipe 52 is provided with a pusher, the pusher is used to push the positioning pin body 10 falling to the end of the first feeding pipe 52 to the end of the first feeding pipe 52.

[0069] The above positioning pin press fitting mechanism needs to be pressed from bottom to top, and is limited by space, so that the existing automatic positioning pin press fitting mechanism is difficult to apply, and the present application can realize stable, efficient and accurate automatic transmission and press fitting of the positioning pin in the limited space through the specific structure of the positioning pin press fitting mechanism.

[0070] The first cylinder 53 is vertically arranged above the conical blanking channel;

[0071] The second cylinder 54 is vertically arranged below the second cylindrical through hole 514;

[0072] The positioning pin transfer support 55 is located in the moving channel 511, and the positioning pin moving support includes a sliding part 551 and a jacking part 552, the sliding part 551 is in sliding fit connection with the moving channel 511, the upper part of the sliding part 551 is provided with a stepped counterbore in the vertical direction, the jacking part 552 is provided with a stepped limiting part in limiting cooperation with the stepped counterbore, the jacking part 552 is movably connected to the stepped counterbore of the sliding part 551, the upper part of the jacking part 552 is provided with a blind hole 5521 in transition cooperation with the positioning pin body 10, the maximum diameter of the jacking part 552 is smaller than the diameter of the first cylindrical through hole 513, and the minimum diameter of the jacking part 552 is greater than the diameter of the second cylindrical through hole 514;

[0073] The third cylinder 56 is connected to the sliding part 551 of the positioning pin moving support through the piston rod, and is used to drive the sliding part 551 to move in the moving channel 511.

[0074] In the above structure, the beginning of the first feeding pipe 52 can be provided with a push cylinder to realize the feeding of the positioning pin press fitting connecting seat 51, and the beginning of the first feeding pipe 52 can be connected with the vibrating feeding disc through a connecting pipe, so that the positioning pin body 10 is transported to the first feeding pipe 52 through the connecting pipe, and the above feeding pipe realizes the accurate positioning and press fitting of the positioning pin from bottom to top in the pin hole of the lower part of the PCU middle shell; the above structure can realize more accurate, stable and efficient automatic transportation of the positioning pin body 10, and press fitting from bottom to top to the lower part of the PCU middle shell.

[0075] The application also protects the positioning pin of the above PCU intermediate shell and the pressing method of the pipe bending pressing machine, comprising the following steps:

[0076] Step 1: position the PCU intermediate shell on the movable positioning seat 3;

[0077] It should be noted that the movable positioning seat 3 is provided with a plurality of positioning columns matched with the PCU intermediate shell for limiting, so as to ensure the positioning accuracy of the PCU intermediate shell on the movable positioning seat 3. The PCU intermediate shell to be processed can be positioned on the movable positioning seat 3 by a mechanical hand or manually;

[0078] Step 2: control the first driving part 4 to drive the movable positioning seat 3 to move along the first horizontal guide rail 2 to the upper side of the positioning pin pressing mechanism 5;

[0079] Step 3: control the second driving part 7 to drive the lower positioning seat 6 to move downward to press and position the upper part of the PCU intermediate shell positioned on the movable positioning seat 3;

[0080] Step 4: control the positioning pin pressing mechanism 5 to press the pin into the corresponding pin hole of the PCU intermediate shell from the lower part to the upper part through the through hole of the movable positioning seat 3;

[0081] Step 5: control the transfer robot 91 to clamp the pipe body 11 and transport it to the needle head of the point glue device 922 at the pressing position, control the transfer robot 91 to drive the pipe body 11 to rotate, control the point glue device 922 to uniformly glue the outer circle of the pressing part of the pipe body 11, and control the transfer robot 91 to transport the pipe body 11 after gluing to the pipe positioning seat 81, and control the third driving part 82 to drive the pipe positioning seat 81 to move, so that the pipe body 11 on the pipe positioning seat 81 is pressed into the corresponding insertion hole of the PCU intermediate shell.

[0082] It should be noted that the above steps can be realized by connecting the PLC with the above first driving part 4, second driving part 7, transfer robot 91 and the like respectively. As a preferred solution, proximity switches can be arranged at multiple positions of the pressing machine to sense whether each component is moved to the position, and the above steps can be realized by setting corresponding programs by the PLC. Since the specific program for realizing automatic control by the PLC is the prior art, the person skilled in the art can realize programming according to the above steps, and the specific program code will not be described here.

[0083] As a preferred embodiment, the step 5 is specifically:

[0084] The control transfer robot 91 clamps the elbow pipe body 11 and transports it to the needle head of the glue dispenser 922 at the pressing position, and controls the glue dispenser 922 to uniformly dispense glue to the outer circle of the pressing position of the elbow pipe body 11 while the control transfer robot 91 rotates the elbow pipe body 11, and controls the control transfer robot 91 to transport the elbow pipe body 11 after the glue dispensing to the elbow pipe positioning seat 81, controls the third driving part 82 to move the elbow pipe positioning seat 81, and makes the elbow pipe body 11 on the elbow pipe positioning seat 81 press into the corresponding insertion hole of the PCU middle shell, controls the third driving part 82 to move the elbow pipe positioning seat 81, and makes the elbow pipe positioning seat 81 separate from the elbow pipe body 11, controls the control transfer robot 91 to clamp the next elbow pipe body 11, transports it to the needle head of the glue dispenser 922 at the pressing position to apply glue, and then clamps the elbow pipe body 11 and transports it to the elbow pipe positioning seat 81, controls the fourth driving part 85 to move the moving seat 83 along the second horizontal guide rail 84, and makes the elbow pipe body 11 face the other corresponding insertion hole of the PCU middle shell, controls the third driving part 82 to move the elbow pipe positioning seat 81, and makes the elbow pipe body 11 on the elbow pipe positioning seat 81 press into the corresponding insertion hole of the PCU middle shell.

[0085] As a preferred embodiment, in the step 5, when the control transfer robot 91 clamps the elbow pipe body 11 and transports it to the needle head of the glue dispenser 922 at the pressing position, the end of the pressing position of the elbow pipe body 11 is coaxially connected to the bearing 9232 of the side wall of the rotary body groove 9231.

[0086] As a preferred embodiment, the step 4 is specifically:

[0087] The third cylinder 56 drives the positioning pin moving support to move to the position directly below the conical blanking through hole 512;

[0088] The first feeding pipe 52 drops the end of the positioning pin body 10 into the conical blanking passage, and the first cylinder 53 pushes the positioning pin body 10 dropped into the conical blanking passage into the blind hole 5521 of the jacking part 552 of the positioning pin moving support;

[0089] The third cylinder 56 drives the positioning pin moving support to move to the position directly below the first cylindrical through hole 513;

[0090] The second cylinder 54 drives the jacking part 552 of the positioning pin moving support to move upward along the first cylindrical through hole 513, and the positioning pin body 10 is pressed into the corresponding pin hole of the PCU middle shell through the avoiding hole 31 of the movable positioning seat 3.

[0091] The above-mentioned embodiments are only examples of the present application, and do not limit the patent scope of the present application, and any equivalent transformation or direct or indirect application in the related technical field based on the content of the specification and drawings of the present application is also included in the patent protection scope of the present application.

Claims

1. A positioning pin and elbow press machine for PCU intermediate housing, characterized in that, The utility model relates to a PCU intermediate shell positioning and bending pipe pressing device, which comprises a base, a first horizontal guide rail connected to the base, a movable positioning seat connected to the first horizontal guide rail, the movable positioning seat being used for positioning and placing a PCU intermediate shell, the positioning seat being provided with one or more vertical avoiding holes, a first driving member connected to the base, the first driving member being connected to the movable positioning seat and being used for driving the movable seat to move along the first horizontal guide rail, a positioning pin pressing mechanism provided on the base, the positioning pin pressing mechanism being used for pressing a pin from bottom to top into a corresponding pin hole of the PCU intermediate shell through the through hole of the movable positioning seat, a lower pressing positioning seat located above the first horizontal guide rail, the lower pressing positioning seat being used for positioning and pressing the upper part of the PCU intermediate shell placed by the movable positioning seat from top to bottom, a second driving member connected to the base, the second driving member being connected to the lower pressing positioning seat and being used for driving the lower pressing positioning seat to move in the vertical direction, a bending pipe pressing mechanism located on one side of the first horizontal guide rail, the bending pipe pressing mechanism comprising a bending pipe positioning seat and a third driving member, the bending pipe positioning seat being connected to the third driving member, the bending pipe positioning seat being used for positioning and placing a bending pipe body, the moving direction of the third driving member being perpendicular to the horizontal direction of the first horizontal guide rail, the third driving member being used for driving the bending pipe positioning seat to move, so that the bending pipe body placed by the bending pipe positioning seat is pressed into the corresponding interface of the side part of the PCU intermediate shell, a bending pipe glue coating mechanism comprising a transfer robot and a positioning glue coating assembly, the positioning glue coating assembly comprising a supporting seat and a glue dispenser, the glue dispenser being connected to the supporting seat, the transfer robot being located on one side of the base, the transfer robot being used for clamping the bending pipe body to be pressed and transported to the pressing position to coat glue on the needle head of the glue dispenser, after the glue coating, the clamped bending pipe body is transported to the bending pipe positioning seat. The bending pipe pressing mechanism further comprises a moving seat, a second horizontal guide rail located on one side of the first horizontal guide rail, and a fourth driving member connected to the base, the moving seat being slidably connected to the second horizontal guide rail, the fourth driving member being used for driving the moving seat to move along the second horizontal guide rail, and the third driving member being connected to the moving seat. The positioning glue coating assembly further comprises a bending pipe rotation limiting member provided with a gyroid groove limiting matched with the connecting end of the bending pipe body to be coated with glue, the axis of the gyroid groove intersecting and being perpendicular to the axis of the needle head of the glue dispenser. The side wall of the gyroid groove is provided with a bearing. The positioning pin pressing mechanism comprises ​ ​ ​ ​ ​ 2. The PCU intermediate case dowel and elbow press machine of claim 1, wherein, ​ 3. The PCU intermediate case dowel and elbow press machine of claim 1, wherein, ​ 4. The PCU intermediate case dowel and elbow press machine of claim 3, wherein, ​ 5. The PCU intermediate case dowel and elbow press machine of claim 3, wherein, ​ The positioning pin press-fit connecting seat is provided with a groove on the upper part of the base, the positioning pin press-fit connecting seat is connected in the groove of the base, the inside of the positioning pin press-fit connecting seat is provided with a horizontal direction moving channel, the upper part of the positioning pin press-fit connecting seat is provided with a tapered blanking through hole which is communicated with the moving channel, the upper part of the positioning pin press-fit connecting seat is provided with a first cylindrical through hole which is communicated with the moving channel, the lower part of the positioning pin press-fit connecting seat is provided with a second cylindrical through hole which is communicated with the moving channel, and the second cylindrical through hole is coincident with the axis of the first cylindrical through hole; The first feeding pipeline is horizontally arranged on the upper part of the positioning pin press-fit connecting seat, and a plurality of to-be-press-fit positioning pin bodies are radially arranged in a line in the feeding pipeline, and the tail end of the first feeding pipeline is located on one side above the tapered blanking channel; The first cylinder is vertically arranged downward above the tapered blanking channel; The second cylinder is vertically arranged upward below the second cylindrical through hole; The positioning pin transfer support is located in the moving channel, the positioning pin transfer support comprises a sliding part and a jacking part, the sliding part is in sliding fit connection with the moving channel, the upper part of the sliding part is provided with a stepped counterbore with a vertical axial direction, the jacking part is provided with a stepped limiting part which is in limiting fit with the stepped counterbore, the jacking part is movably connected to the stepped counterbore of the sliding part, the upper part of the jacking part is provided with a blind hole which is in transition fit with the positioning pin body, the maximum diameter of the jacking part is smaller than the diameter of the first cylindrical through hole, and the minimum diameter of the jacking part is greater than the diameter of the second cylindrical through hole; The third cylinder is connected to the sliding part of the positioning pin moving support through the piston rod, and is used for driving the sliding part to move in the moving channel.

6. A press method of a PCU intermediate case positioning pin and a tube bending press of any one of claims 1 to 5, characterized by, The method comprises the following steps: Step 1: positioning and placing the PCU intermediate shell on the movable positioning seat; Step 2: controlling the first driving part to drive the movable positioning seat to move along the first horizontal guide rail to be above the positioning pin press-fit mechanism; Step 3: controlling the second driving part to drive the lower positioning seat to move downward to press and position the upper part of the PCU intermediate shell positioned on the movable positioning seat; Step 4: controlling the positioning pin press-fit mechanism to press the pin into the corresponding pin hole of the PCU intermediate shell from bottom to top through the through hole of the movable positioning seat; Step 5: controlling the transfer robot to clamp the bent pipe body and transport it to the needle head of the spot glue machine, controlling the transfer robot to drive the bent pipe body to rotate, controlling the spot glue machine to uniformly glue the press-fit part of the bent pipe body, and controlling the transfer robot to transport the glued bent pipe body to the bent pipe positioning seat and controlling the third driving part to drive the bent pipe positioning seat to move so that the bent pipe body on the bent pipe positioning seat is pressed into the corresponding insertion hole of the PCU intermediate shell.

7. The method of press fitting a locating pin and elbow of a PCU intermediate case according to claim 6, wherein, The step 5 is specifically: The transfer robot clamps the elbow pipe body and transports it to the pressing position to align the needle head of the dispenser, the transfer robot drives the elbow pipe body to rotate while the dispenser uniformly dispenses glue to the outer circle of the pressing position of the elbow pipe body, the transfer robot transports the elbow pipe body after dispensing to the elbow pipe positioning seat, the third driving part drives the elbow pipe positioning seat to move, so that the elbow pipe body on the elbow pipe positioning seat is pressed into the corresponding insertion hole of the PCU middle shell; the third driving part drives the elbow pipe positioning seat to move, so that the elbow pipe positioning seat is separated from the elbow pipe body, the transfer robot clamps the next elbow pipe body, first transports it to the pressing position to align the needle head of the dispenser to apply glue, and then clamps the elbow pipe body to transport it to the elbow pipe positioning seat, the fourth driving part drives the moving seat to move along the second horizontal guide rail, so that the elbow pipe body is directed to the other corresponding insertion hole of the PCU middle shell, and the third driving part drives the elbow pipe positioning seat to move, so that the elbow pipe body on the elbow pipe positioning seat is pressed into the corresponding insertion hole of the PCU middle shell.

8. The method of press fitting a locating pin and elbow of a PCU intermediate case according to claim 6, wherein, In the step 5, when the transfer robot clamps the elbow pipe body and transports it to the pressing position to align the needle head of the dispenser, the end of the pressing position of the elbow pipe body is coaxially connected to the bearing on the side wall of the rotary body groove.

9. The method of press fitting a locating pin and elbow of a PCU intermediate case according to claim 7, wherein, The step 4 is specifically: The third cylinder drives the positioning pin moving support to move to the position directly below the conical blanking through hole; The first feeding pipe drops one positioning pin body to the conical blanking channel, and the first cylinder pushes the positioning pin body dropped into the conical blanking channel into the blind hole of the jacking part of the positioning pin moving support; The third cylinder drives the positioning pin moving support to move to the position directly below the first cylindrical through hole; The second cylinder drives the jacking part of the positioning pin moving support to move upward along the first cylindrical through hole, and the positioning pin body is pressed into the corresponding pin hole of the PCU middle shell through the avoiding hole of the movable positioning seat.

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