CN108061628B - Sealing performance testing equipment for electronic parking actuator - Google Patents

Sealing performance testing equipment for electronic parking actuator Download PDF

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Publication number
CN108061628B
CN108061628B CN201711402566.7A CN201711402566A CN108061628B CN 108061628 B CN108061628 B CN 108061628B CN 201711402566 A CN201711402566 A CN 201711402566A CN 108061628 B CN108061628 B CN 108061628B
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CN
China
Prior art keywords
actuator
electronic parking
plate
positioning
pressing
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CN201711402566.7A
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Chinese (zh)
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CN108061628A (en
Inventor
顾宏超
徐治平
李国军
疏涛
吴宏城
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Zhuji Qingchen Science and Technology Service Co.,Ltd.
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Zhuji Qingchen Science And Technology Service Co ltd
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Publication of CN108061628A publication Critical patent/CN108061628A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors

Abstract

The invention discloses a device for testing the sealing performance of an electronic parking actuator, which comprises a test workbench, an actuator positioning device for placing the electronic parking actuator, a jacking device for controlling the actuator positioning device to move along the vertical direction, an actuator pressing device for applying pressing force to the electronic parking actuator and sealing the opening end of a connector of the electronic parking actuator, and a shell plugging device for sealing the opening end of a shell of the electronic parking actuator, wherein the shell plugging device and the actuator pressing device are arranged on the test workbench. The sealing performance testing equipment for the electronic parking actuator can conveniently test the sealing performance of the electronic parking actuator, improves the working efficiency of testing the sealing performance of the electronic parking actuator and ensures the product quality.

Description

Sealing performance testing equipment for electronic parking actuator
Technical Field
The invention belongs to the technical field of electronic parking actuator processing equipment of an electronic parking brake system of a motor vehicle, and particularly relates to sealing performance testing equipment of an electronic parking actuator.
Background
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems: after the electronic parking actuator of the electronic parking brake system of the motor vehicle is assembled, the sealing performance needs to be tested, the traditional technology adopts manual testing, the working efficiency is low, and the accuracy of a test result is not enough.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a device for testing the sealing performance of an electronic parking actuator, and aims to improve the working efficiency of testing the sealing performance of the electronic parking actuator.
In order to achieve the purpose, the invention adopts the technical scheme that: the electronic parking actuator sealing performance testing equipment comprises a testing workbench, an actuator positioning device used for placing an electronic parking actuator, a jacking device used for controlling the actuator positioning device to move along the vertical direction, an actuator pressing device used for applying pressing force to the electronic parking actuator and enabling an opening end of a connector of the electronic parking actuator to be closed, and a shell plugging device used for enabling an opening end of a shell of the electronic parking actuator to be closed, wherein the shell plugging device and the actuator pressing device are arranged on the testing workbench.
The actuator positioning device comprises a positioning bottom plate, a positioning block and an actuator positioning pin, wherein the positioning block is arranged on the positioning bottom plate and used for placing the electronic parking actuator, and the actuator positioning pin is arranged on the positioning block and used for positioning the electronic parking actuator.
The actuator positioning pins are arranged in a plurality and are vertically arranged on the positioning blocks, and the shell of the electronic parking actuator is provided with holes for the actuator positioning pins to be inserted into.
The jacking device comprises a supporting plate and a lower positioning pin, the supporting plate is arranged below the positioning bottom plate and used for supporting the actuator positioning device, the lower positioning pin is arranged on the supporting plate and used for positioning the actuator positioning device, and the positioning bottom plate is provided with a positioning hole into which the lower positioning pin is inserted.
The jacking device further comprises a jacking cylinder used for controlling the supporting plate to move along the vertical direction, a lower guide rod connected with the supporting plate and a lower guide plate sleeved on the lower guide rod and located below the supporting plate, and the lower guide plate is provided with a lower guide hole for inserting the lower guide rod.
The actuator pressing device comprises an upper pressing head assembly, a side face plugging assembly and a driving assembly, wherein the upper pressing head assembly is located above the actuator positioning device and used for applying pressing force to the electronic parking actuator, the side face plugging assembly is arranged on the upper pressing head assembly and used for enabling an opening end of a connector of the electronic parking actuator to be sealed, and the driving assembly is used for controlling the upper pressing head assembly to move along the vertical direction.
The side shutoff assembly includes the end cap mounting panel, sets up on the end cap mounting panel and is used for the side shutoff cylinder that the open end confined end cap of the connector of electron parking executor and be connected and be used for controlling the end cap mounting panel and remove along vertical direction with the end cap mounting panel, side shutoff cylinder with go up the pressure head assembly and connect, the side end cap is sealed the pad of making for adopting polyurethane or silica gel material.
The upper pressure head assembly comprises an upper pressure plate, a pressing rod and a pressure head connecting plate, the pressing rod is arranged on the upper pressure plate and used for applying pressing force to the electronic parking actuator, the pressure head connecting plate is connected with the upper pressure plate and the driving assembly, the pressing rods are arranged in a plurality and are located above the positioning blocks.
The driving assembly comprises a pressing cylinder, a guide rod connecting plate, an upper guide rod and an upper guide plate, the guide rod connecting plate is connected with the pressing cylinder and the pressure head connecting plate, the upper guide rod is connected with the guide rod connecting plate, the upper guide plate is sleeved on the upper guide rod and is positioned above the guide rod connecting plate, and the upper guide plate is provided with an upper guide hole for the upper guide rod to be inserted into.
The shell plugging device comprises a bottom plug and a bottom plugging air cylinder, wherein the bottom plug is used for sealing the opening end of the shell of the electronic parking actuator, and the bottom plugging air cylinder is connected with the bottom plug and is used for controlling the bottom plug to move along the vertical direction.
The sealing performance testing equipment for the electronic parking actuator can conveniently test the sealing performance of the electronic parking actuator, improves the working efficiency of testing the sealing performance of the electronic parking actuator and ensures the product quality.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic structural diagram of a sealing performance testing device of an electronic parking actuator according to the present invention;
FIG. 2 is a schematic view of a partial structure of the sealing performance testing device of the electronic parking actuator according to the present invention;
FIG. 3 is a schematic view of the construction of the actuator positioning device;
FIG. 4 is a schematic view of the construction of the actuator compression device;
FIG. 5 is a schematic view of the assembly of the actuator positioning device with the jacking device and the housing plugging device;
labeled as: 1. a test bench; 2. a leak tester; 3. an actuator positioning device; 301. positioning the bottom plate; 302. positioning blocks; 303. an actuator positioning pin; 304. positioning holes; 305. positioning a groove; 306. avoiding holes; 4. a jacking device; 401. a support plate; 402. a lower locating pin; 403. jacking a cylinder; 404. a lower guide plate; 405. a lower guide bar; 5. an actuator pressing device; 501. a pressing cylinder; 502. an upper guide bar; 503. an upper guide plate; 504. a guide rod connecting plate; 505. a pressure head connecting plate; 506. an upper platen; 507. the side surface blocks the air cylinder; 508. a plug mounting plate; 509. a hold down bar; 6. a housing plugging device; 601. the bottom plugs the cylinder; 602. a bottom plug; 7. a limiting device; 701. a support plate; 702. a limiting plate; 8. a housing; 9. a connector is provided.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 1 to 5, the present invention provides an electronic parking actuator sealing performance testing apparatus, which includes a testing table 1, a leakage tester 2, an actuator positioning device 3 for placing an electronic parking actuator, a jacking device 4 for controlling the actuator positioning device 3 to move in a vertical direction, an actuator pressing device 5 for applying a pressing force to the electronic parking actuator and closing an opening end of a connector of the electronic parking actuator, and a housing blocking device 6 for closing an opening end of a housing of the electronic parking actuator, wherein the housing blocking device 6 and the actuator pressing device 5 are disposed on the testing table 1.
Specifically, the electronic parking actuator is configured to convert electrical energy into rotational kinetic energy and generate a driving force for linearly moving a brake pad of the electronic parking brake system relative to a brake disc in a direction parallel to an axial direction of the brake disc, so that the brake pad clamps or releases the brake disc. The electronic parking actuator mainly comprises a shell, a motor arranged in the shell, a planetary gear speed reducing mechanism and a gear transmission mechanism, wherein the gear transmission mechanism is used for transmitting power generated by the motor to the planetary gear speed reducing mechanism. The leakage tester 2 is arranged on the test workbench 1, and the shell blocking device 6 is positioned below the actuator pressing device 5.
As shown in fig. 1 to 3, the actuator positioning device 3 includes a positioning base plate 301, a positioning block 302 disposed on the positioning base plate 301 and used for placing the electronic parking actuator, and an actuator positioning pin 303 disposed on the positioning block 302 and used for positioning the electronic parking actuator. The positioning bottom plate 301 is horizontally arranged, the positioning bottom plate 301 is positioned and supported by the jacking device 4, the positioning bottom plate 301 is a rectangular flat plate, and the length direction and the width direction of the positioning bottom plate 301 are parallel to the horizontal direction. The positioning block 302 is fixedly disposed on the top surface of the positioning base plate 301, the positioning block 302 has a positioning groove 305 for the housing of the electronic parking actuator to be embedded, the positioning groove 305 is a groove formed by recessing from the top surface of the positioning block 302 toward the inside of the positioning block 302, and the positioning groove 305 matches with the shape of the housing of the electronic parking actuator. The actuator positioning pin 303 is provided in plurality and the actuator positioning pin 303 is vertically provided on the positioning block 302, and the housing has a hole into which the actuator positioning pin 303 is inserted. The actuator positioning pin 303 is vertically arranged on the positioning block 302, the actuator positioning pin 303 is inserted into the positioning block 302, the axis of the actuator positioning pin 303 is located in a vertical plane, the top surface of the positioning block 302 is a positioning surface for placing a shell of the electronic parking actuator, the actuator positioning pin 303 extends to the top surface of the positioning block 302, the actuator positioning pin is conveniently embedded into a hole in the shell of the electronic parking actuator, and accurate positioning of the shell of the electronic parking actuator is achieved.
In the present embodiment, as shown in fig. 3, two actuator positioning pins 303 are provided, the actuator positioning pins 303 are cylindrical pins, and the two actuator positioning pins 303 are located on the same straight line parallel to the length direction of the positioning base plate 301.
As shown in fig. 1, 2 and 5, the jacking device 4 includes a supporting plate 401 disposed below the actuator positioning device 3 and used for supporting the actuator positioning device 3, and a lower positioning pin 402 disposed on the supporting plate 401 and used for positioning the actuator positioning device 3, and the positioning base plate 301 has a positioning hole 304 into which the lower positioning pin 402 is inserted. Supporting plate 401 is parallel to positioning bottom plate 301 and supporting plate 401 provides the supporting role to positioning bottom plate 301 in the below of positioning bottom plate 301, and supporting plate 401 is the rectangle flat board, and the length direction and the width direction of supporting plate 401 are the horizontal direction, and lower locating pin 402 is fixed to be set up on supporting plate 401, and lower locating pin 402 is vertical setting, and lower locating pin 402 is the cylindric lock, and the axis of lower locating pin 402 is located the vertical plane. As shown in fig. 3, the positioning hole 304 is a circular hole, the diameter of the positioning hole 304 is the same as the diameter of the lower positioning pin 402, the positioning hole 304 is a through hole penetrating through the positioning bottom plate 301 along the plate thickness direction, and the lower positioning pin 402 is inserted into the positioning hole 304, so that the actuator positioning device 3 is prevented from moving, the actuator positioning device 3 is accurately positioned, and the electronic parking actuator is accurately positioned during assembly. Preferably, the lower positioning pins 402 are provided in plural, the corresponding positioning holes 304 are also provided in plural, the number of the positioning holes 304 is the same as that of the lower positioning pins 402, and each lower positioning pin 402 is inserted into one positioning hole 304.
In the present embodiment, as shown in fig. 2, 3 and 5, two lower positioning pins 402 are provided, two positioning holes 304 are provided on the positioning base plate 301, the two lower positioning pins 402 are located on the same straight line parallel to the length direction of the supporting plate 401, and the positioning block 302 is located at the middle position between the two lower positioning pins 402.
As shown in fig. 1, 2 and 5, the jacking device 4 further includes a jacking cylinder 403 for controlling the supporting plate 401 to move in the vertical direction, a lower guide rod 405 connected to the supporting plate 401, and a lower guide plate 404 sleeved on the lower guide rod 405 and located below the supporting plate 401, wherein the lower guide plate 404 has a lower guide hole into which the lower guide rod 405 is inserted. Lower deflector 404 parallels with layer board 401, lower deflector 404 and test bench 1 fixed connection, lower deflector 404 is the rectangle flat board, the length direction and the width direction of lower deflector 404 are the horizontal direction, the through-hole that the guiding hole runs through the setting for following the thick orientation of board on lower deflector 404, lower guide bar 405 is vertical setting, the guiding hole is the round hole down, lower guide bar 405 is the round rod body, the diameter of lower guide bar 405 is the same with the diameter size of guiding hole down, lower guide bar 405 passes down the guiding hole, lower guide bar 405 is located the below of layer board 401, the upper end and layer board 401 fixed connection of lower guide bar 405. The lower guide rod 405 is matched with the lower guide plate 404 to guide the supporting plate 401, so that the supporting plate 401 is ensured to do stable linear motion along the vertical direction. Jacking cylinder 403 is located below supporting plate 401, jacking cylinder 403 and lower deflector 404 fixed connection, and jacking cylinder 403 is vertical setting, and jacking cylinder 403's piston rod and supporting plate 401 fixed connection are flexible through jacking cylinder 403, and control supporting plate 401 and the last executor positioner 3 of above do reciprocating linear motion along vertical direction.
As shown in fig. 2 and 5, one lower guide rod 405 is provided, one lower guide hole is also provided, the lower guide rod 405 is inserted into the lower guide hole, one jacking cylinder 403 is provided, the jacking cylinder 403 and the lower guide rod 405 are positioned on the same straight line parallel to the length direction of the supporting plate 401, and the jacking cylinder 403 and the lower guide hole are respectively positioned at one end of the supporting plate 401 in the length direction.
As shown in fig. 1 to 5, the electronic parking actuator sealing performance testing apparatus of the present invention further includes a limiting device 7 for limiting the actuator positioning device 3 in the vertical direction, where the limiting device 7 includes a supporting plate 701 and a limiting plate 702 disposed on the supporting plate 701 and above the positioning bottom plate 301. The supporting plate 701 is arranged vertically, the supporting plate 701 is fixedly connected with the test workbench 1, the limiting plate 702 is fixedly arranged on the supporting plate 701, and the length direction of the limiting plate 702 is parallel to the horizontal direction. The limiting plate 702 is fixedly connected with the upper end of the supporting plate 701, the limiting plate 702 extends out towards one side of the supporting plate 701 along the horizontal direction, when the jacking device 4 pushes the actuator positioning device 3 to move upwards, after the top surface of the positioning bottom plate 301 is contacted with the limiting plate 702, the actuator positioning device 3 rises to the position, and at the moment, the limiting plate 702 is matched with the supporting plate 401 to clamp the positioning bottom plate 301, so that the actuator positioning device 3 is fixed. Preferably, the limiting devices 7 are arranged in a plurality, each limiting device 7 is located at a different position, all the limiting devices 7 are arranged in two rows, the limiting devices 7 in each row are located on the same straight line parallel to the length direction of the positioning bottom plate 301, the two rows of limiting devices 7 are symmetrically distributed, the limiting devices 7 in each row are sequentially arranged along the length direction of the positioning bottom plate 301, the limiting devices 7 are matched, the limiting effect is jointly achieved on the actuator positioning device 3, the limiting reliability is guaranteed, the positioning bottom plate 301 is enabled to be stressed uniformly, the stability is high, and the reliability is good.
In the present embodiment, as shown in fig. 1, fig. 2 and fig. 5, four limiting devices 7 are provided, and each limiting device 7 is located at one right-angled corner of the positioning base plate 301.
As shown in fig. 1 to 5, the actuator pressing device 5 includes an upper pressing head assembly located above the actuator positioning device 3 and configured to apply a pressing force to the electronic parking actuator, a side blocking assembly disposed on the upper pressing head assembly and configured to close an opening end of a connector of the electronic parking actuator, and a driving assembly configured to control the upper pressing head assembly to move in a vertical direction. The connector of electron parking executor sets up on the casing, and the connector stretches out towards the outside of casing, and the connector is used for pegging graft pencil, and the one end and the casing fixed connection of connector, the other end of connector have let the opening that the pencil was inserted, this opening and the inner chamber intercommunication of casing, need seal this opening of connector during consequently the test. The side blocking assembly comprises a plug mounting plate 508, a side plug which is arranged on the plug mounting plate 508 and used for closing an opening end of a connector of the electronic parking actuator, and a side blocking cylinder 507 which is connected with the plug mounting plate 508 and used for controlling the plug mounting plate 508 to move along the vertical direction, wherein the side blocking cylinder 507 is connected with the upper pressure head assembly. The side end cap is used for being attached to the end face of the opening end of the connector of the electronic parking actuator so as to seal the opening of the opening end of the connector, and the side end cap is a sealing gasket made of polyurethane or silica gel and is good in sealing performance.
As shown in fig. 1 to 5, the upper ram assembly includes an upper platen 506, a plurality of ram connecting plates 505 connected to the upper platen 506 and the drive assembly, and a plurality of ram rods 509 arranged on the upper platen 506 and used for applying a pressing force to the electronic parking actuator, wherein the ram rods 509 are located above the positioning block 302. The driving assembly comprises a pressing air cylinder 501, a guide rod connecting plate 504 connected with the pressing air cylinder 501 and a pressure head connecting plate 505, an upper guide rod 502 connected with the guide rod connecting plate 504, and an upper guide plate 503 sleeved on the upper guide rod 502 and located above the guide rod connecting plate 504, wherein the upper guide plate 503 is provided with an upper guide hole for inserting the upper guide rod 502. Go up the deflector 503 and parallel with lower deflector 404, go up deflector 503 and test table 1 fixed connection, it is the rectangle flat board to go up the deflector 503, the length direction and the width direction of going up the deflector 503 are the horizontal direction, it runs through the through-hole that sets up for going up the via hole along the thick direction of board on last deflector 503 to go up the guiding hole, it is vertical setting to go up the guiding rod 502, it is the round hole to go up the guiding hole, it is the round rod body to go up the guiding rod 502, the diameter of going up the guiding rod 502 is the same with the diameter size of last guiding hole, it passes down the guiding hole to go up the guiding rod 502, go up the guiding rod 502 and be located the top of guide arm connecting plate 504, the lower extreme and the guide. The upper guide plate 503 is fixedly arranged, and the upper guide rod 502 is matched with the upper guide plate 503 to guide the guide rod connecting plate 504 and the upper pressure head assembly, so that the guide rod connecting plate 504 and the upper pressure head assembly are ensured to do stable linear motion along the vertical direction. The jacking cylinder 403 is located below the guide rod connecting plate 504, the pressing cylinder 501 is fixedly connected with the lower guide plate 404, the pressing cylinder 501 is vertically arranged, a piston rod of the pressing cylinder 501 is fixedly connected with the guide rod connecting plate 504, and the guide rod connecting plate 504 and the upper pressure head assembly are controlled to do reciprocating linear motion along the vertical direction through the extension and retraction of the pressing cylinder 501. The upper guide rods 502 are provided with two parallel upper guide holes, the upper guide holes are also provided with two upper guide rods 502, each upper guide rod 502 is inserted into one upper guide hole, and the pressing air cylinder 501 is positioned between the two upper guide rods 502. The pressing head connecting plate 505 is vertically arranged, the pressing head connecting plate 505 is located between the upper pressing plate 506 and the guide rod connecting plate 504, the upper pressing plate 506 is parallel to the guide rod connecting plate 504, the upper end of the pressing head connecting plate 505 is fixedly connected with the guide rod connecting plate 504, the lower end of the pressing head connecting plate 505 is fixedly connected with the upper pressing plate 506, the pressing head connecting plate 505 is perpendicular to the guide rod connecting plate 504 and the upper pressing plate 506, the two pressing head connecting plates 505 are arranged in parallel, a certain distance is reserved between the two pressing head connecting plates 505, the two pressing head connecting plates 505 are respectively and fixedly connected with the upper pressing plate 506 at two ends of the upper pressing plate 506, and the. The pressing rod 509 is a rod-shaped member vertically arranged, the pressing rod 509 extends towards the lower part of the upper pressure plate 506, the upper end of the pressing rod 509 is fixedly connected with the upper pressure plate 506, the lower end face of the pressing rod 509 is a pressing surface used for contacting with the shell of the electronic parking actuator, the pressing surface is a plane perpendicular to the vertical direction, the pressing rod 509 applies pressing force to the housing of the electronic parking actuator at a fixing lug on the housing of the electronic parking actuator, the housing of the electronic parking actuator is mounted on a caliper body of the brake caliper at the fixing lug through a bolt, the fixing lug of the housing of the electronic parking actuator is provided with a bolt hole through which the bolt passes, and the bolt hole is also used as a hole for inserting the actuator positioning pin 303, the pressing rod 509 is positioned above the actuator positioning pin 303, and the diameter of the pressing rod 509 is larger than that of the bolt hole on the fixing lug of the housing of the electronic parking actuator. After the actuator pressing device 5 applies pressing force to the shell of the electronic parking actuator, the actuator pressing device 5 presses the electronic parking actuator on the positioning block 302, the actuator pressing device 5 is matched with the actuator positioning device 3 to realize the positioning and fixing of the electronic parking actuator, the pressing surface of the pressing rod 509 contacts with the top surface of the fixing lug of the shell of the electronic parking actuator, and the bottom surface of the fixing lug contacts with the top surface of the positioning block 302. The actuator pressing device 5 applies pressing force to the electronic parking actuator at the fixing lug of the shell of the electronic parking actuator, so that the electronic parking actuator is not easily damaged, and the electronic parking actuator is ensured to be fixed and reliable.
As shown in fig. 1 to 5, two fixing lugs of the housing of the electronic parking actuator are symmetrically arranged, two pressing rods 509 are also provided, the two pressing rods 509 are located on the same straight line parallel to the length direction of the upper pressing plate 506, each pressing rod 509 is located right above one actuator positioning pin 303, and the two pressing rods 509 respectively apply pressing force to the electronic parking actuator at the two fixing lugs on the housing of the electronic parking actuator, so that the electronic parking actuator is uniformly stressed and reliably fixed.
As shown in fig. 1 to 5, the side-blocking cylinder 507 is vertically disposed, the side-blocking cylinder 507 is fixedly connected to the ram connecting plates 505, the side-blocking cylinder 507 is located on the same side of the two pressing rods 509, the bulkhead mounting plate 508 is fixedly connected to the piston rod of the side-blocking cylinder 507, the cylinder body of the side-blocking cylinder 507 is fixedly connected to the two ram connecting plates 505, the bulkhead mounting plate 508 is located below the cylinder body of the side-blocking cylinder 507, the length direction of the bulkhead mounting plate 508 is parallel to the same straight line where the two pressing rods 509 are located, and the side bulkhead is mounted at the middle position of the bulkhead mounting plate 508 in the length direction.
As shown in fig. 1, 2, 3 and 5, the housing blocking device 6 includes a bottom block 602 for blocking an open end of the housing of the electronic parking actuator, and a bottom blocking cylinder 601 connected to the bottom block 602 and controlling the bottom block 602 to move in a vertical direction. One end of the shell is fixedly connected with the connector, the other end of the shell is provided with an opening, the opening is circular, a power output shaft of the electronic parking actuator is inserted into the opening, and the opening is communicated with the inner cavity of the shell, so that the circular opening of the opening end of the shell needs to be closed during testing. The bottom plug 602 is a cylinder, the bottom plug 602 is vertically arranged, the supporting plate 401 is provided with a through hole through which the bottom plug 602 penetrates, the positioning base plate 301 is provided with a through hole through which the bottom plug 602 penetrates, the positioning block 302 is provided with an avoiding hole 306 in which the bottom plug 602 is embedded, the avoiding hole 306 is communicated with the through hole in the positioning base plate 301 and coaxially arranged, and the supporting plate 401, the positioning base plate 301 and the positioning block 302 are matched to guide the bottom plug 602 and ensure that the bottom plug 602 linearly moves along the vertical direction. The avoiding hole 306 on the positioning block 302 is used for aligning with a circular opening of an opening end of a shell of the electronic parking actuator, after the electronic parking actuator is fixed on the positioning block 302, the avoiding hole 306 on the positioning block 302 and the circular opening of the opening end of the shell of the electronic parking actuator are in a coaxial and communicated state, the bottom plug 602 and the circular opening of the opening end of the shell of the electronic parking actuator are in a coaxial state, finally, under the action of the bottom plugging cylinder 601, the bottom plug 602 moves upwards, and the bottom plug 602 is attached to the end face of the opening end of the shell of the electronic parking actuator so as to seal the opening end of the shell of the electronic parking actuator.
As shown in fig. 1, 2 and 5, the bottom plug 602 is located above the lower guide plate 404, the bottom plug 602 is located between the jacking cylinder 403 and the lower guide rod 405, the bottom plugging cylinder 601 is vertically arranged, the bottom plugging cylinder 601 is located below the bottom plug 602, the lower end of the bottom plug 602 is fixedly connected with a piston rod of the bottom plugging cylinder 601, a cylinder body of the bottom plugging cylinder 601 is fixedly connected with the lower guide plate 404, and a cylinder body of the bottom plugging cylinder 601 is located below the lower guide plate 404. The bottom plugging cylinder 601 stretches and retracts, and the bottom plug 602 is controlled to do linear reciprocating motion along the vertical direction, so that the bottom plugging cylinder 601 is inserted into the avoiding hole 306 of the positioning block 302 and is pulled out of the avoiding hole 306. Preferably, an O-ring for fitting with an end face of an open end of a housing of the electronic parking actuator is disposed at an upper end of the bottom plug 602, so that the sealing performance between the bottom plug 602 and the housing of the electronic parking actuator is improved, and the accuracy of a sealing performance test result of the electronic parking actuator is further improved.
The shell plugging device 6 with the structure is simple in structure, convenient to arrange, capable of achieving sealing of the shell of the electronic parking actuator, high in sealing reliability and capable of ensuring accuracy of a sealing performance test result of the electronic parking actuator.
As shown in fig. 1, a leak tester 2 is installed on a test bench 1, the leak tester 2 is used for performing a leak test on the electronic parking actuator, and the leak tester 2 is a test device well known to those skilled in the art and will not be described herein. As shown in fig. 2 and 4, the plug mounting plate 508 is further configured to guide a test gas into the housing of the electronic parking actuator to be tested, the plug mounting plate 508 is connected to an external gas source through a gas pipe, the plug mounting plate 508 fills the test gas with a certain pressure provided by the gas source into the housing of the electronic parking actuator, a gas passage is disposed inside the plug mounting plate 508, after the side blocking assembly closes the open end of the connector, the gas passage in the plug mounting plate 508 communicates the connector with the inner cavity of the housing of the electronic parking actuator, the test gas provided by the gas source enters the inner cavity of the housing of the electronic parking actuator through the gas passage in the plug mounting plate 508, and the leak tester 2 detects a pressure change inside the electronic parking actuator, thereby implementing a test on the sealing performance of the electronic parking actuator.
The process of testing the sealing performance of the electronic parking actuator by using the electronic parking actuator sealing performance testing equipment with the structure comprises the following steps:
s1, placing the electronic parking actuator on the actuator positioning device 3 for positioning, and then jacking the actuator positioning device 3 upwards by the jacking device 4 until the actuator positioning device 3 rises to the top dead center position;
s2, the actuator pressing device 5 presses the electronic parking actuator on the actuator positioning device 3, and the opening end of the connector of the electronic parking actuator is closed;
s3, the shell blocking device 6 closes the open end of the shell of the electronic parking actuator;
and S4, filling the test gas into the electronic parking actuator, and performing a leakage test on the electronic parking actuator by the leakage tester 2.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims (4)

1. The electronic parking actuator sealing performance testing equipment is characterized by comprising a testing workbench, an actuator positioning device for placing an electronic parking actuator, a jacking device for controlling the actuator positioning device to move along the vertical direction, an actuator pressing device for applying pressing force to the electronic parking actuator and sealing an opening end of a connector of the electronic parking actuator, and a shell blocking device for sealing an opening end of a shell of the electronic parking actuator, wherein the shell blocking device and the actuator pressing device are arranged on the testing workbench;
the jacking device comprises a supporting plate, a lower positioning pin, a jacking cylinder, a lower guide rod and a lower guide plate, wherein the supporting plate is arranged below the actuator positioning device and used for supporting the actuator positioning device, the lower positioning pin is arranged on the supporting plate and used for positioning the actuator positioning device, the jacking cylinder is used for controlling the supporting plate to move along the vertical direction, the lower guide rod is connected with the supporting plate, the lower guide plate is sleeved on the lower guide rod and positioned below the supporting plate, the lower guide plate is parallel to the supporting plate, and the lower guide plate is provided with a lower guide hole for the lower guide rod to be;
the actuator positioning device comprises a positioning bottom plate, a positioning block which is arranged on the positioning bottom plate and used for placing the electronic parking actuator, and an actuator positioning pin which is arranged on the positioning block and used for positioning the electronic parking actuator;
the electronic parking actuator is characterized in that the actuator positioning pins are arranged in a plurality and vertically arranged on the positioning blocks, and a shell of the electronic parking actuator is provided with a hole for the actuator positioning pin to be inserted; the positioning bottom plate is provided with a positioning hole for inserting the lower positioning pin, the lower positioning pin is vertically arranged, the lower positioning pin is a cylindrical pin, and the positioning hole is a circular hole;
the actuator pressing device comprises an upper pressing head assembly, a side face plugging assembly and a driving assembly, wherein the upper pressing head assembly is positioned above the actuator positioning device and used for applying pressing force to the electronic parking actuator, the side face plugging assembly is arranged on the upper pressing head assembly and used for enabling an opening end of a connector of the electronic parking actuator to be sealed, the driving assembly is used for controlling the upper pressing head assembly to move along the vertical direction, and the upper pressing head assembly is positioned above the shell plugging device;
the side blocking assembly comprises a plug mounting plate, a side plug and a side blocking cylinder, the side plug is arranged on the plug mounting plate and used for blocking an opening end of a connector of the electronic parking actuator, the side blocking cylinder is connected with the plug mounting plate and used for controlling the plug mounting plate to move along the vertical direction, the side blocking cylinder is connected with the upper pressure head assembly, and the side plug is a sealing gasket made of polyurethane or silica gel; the side plug is used for being attached to the end face of the opening end of the connector of the electronic parking actuator so as to seal the opening of the opening end of the connector;
the shell plugging device comprises a bottom plug and a bottom plugging cylinder, wherein the bottom plug is used for sealing the opening end of a shell of the electronic parking actuator, the bottom plugging cylinder is connected with the bottom plug and is used for controlling the bottom plug to move along the vertical direction, the bottom plug is a cylinder, and the bottom plug is vertically arranged;
the upper pressure head assembly comprises an upper pressure plate, a plurality of pressure rods and a pressure head connecting plate, wherein the pressure rods are arranged on the upper pressure plate and used for applying pressing force to the electronic parking actuator, and the pressure head connecting plate is connected with the upper pressure plate and the drive assembly;
the driving assembly comprises a pressing cylinder, a guide rod connecting plate connected with the pressing cylinder and the pressing head connecting plate, an upper guide rod connected with the guide rod connecting plate, and an upper guide plate which is sleeved on the upper guide rod and positioned above the guide rod connecting plate, wherein the upper guide plate is provided with an upper guide hole into which the upper guide rod is inserted, and the upper guide rod is matched with the upper guide plate and plays a role in guiding the guide rod connecting plate and the upper pressing head assembly;
the electronic parking actuator comprises a shell, a pressing rod, an upper pressing plate, a pressing surface and a pressing lug, wherein the pressing rod is a rod-shaped member which is vertically arranged, the pressing rod extends out towards the lower part of the upper pressing plate, the upper end of the pressing rod is fixedly connected with the upper pressing plate, the end surface of the lower end of the pressing rod is a pressing surface which is used for being in contact with the shell of the electronic parking actuator, the pressing surface is a plane which is vertical to the vertical direction, and the pressing rod applies pressing force to the shell of the electronic parking actuator at the; the jacking cylinder is positioned below the guide rod connecting plate, the pressing cylinder is vertically arranged and is fixedly connected with the lower guide plate;
the side blocking cylinder is vertically arranged, the side blocking cylinder is fixedly connected with the pressure head connecting plate and is positioned on the same side of the two pressing rods, the plug mounting plate is fixedly connected with a piston rod of the side blocking cylinder, a cylinder body of the side blocking cylinder is fixedly connected with the two pressure head connecting plates, the plug mounting plate is positioned below the cylinder body of the side blocking cylinder, the length direction of the plug mounting plate is parallel to the same straight line where the two pressing rods are positioned, and the side plug is mounted in the middle of the plug mounting plate in the length direction;
the bottom plug is a cylinder and is vertically arranged, an O-shaped sealing ring which is used for being attached to the end face of the opening end of the shell of the electronic parking actuator is arranged at the upper end of the bottom plug, and the upper end of the bottom plug is connected with the bottom plugging cylinder; the supporting plate is provided with a through hole for the bottom plug to pass through, the positioning bottom plate is provided with a through hole for the bottom plug to pass through, the positioning block is provided with an avoidance hole for the bottom plug to be embedded in, the avoidance hole is communicated with the through hole in the positioning bottom plate and is coaxially arranged, and the supporting plate, the positioning bottom plate and the positioning block are matched to guide the bottom plug;
the bottom plug is positioned above the lower guide plate, the bottom plug is positioned between the jacking cylinder and the lower guide rod, the bottom plugging cylinder is positioned below the bottom plug, the lower end of the bottom plug is fixedly connected with a piston rod of the bottom plugging cylinder, a cylinder body of the bottom plugging cylinder is fixedly connected with the lower guide plate, and a cylinder body of the bottom plugging cylinder is positioned below the lower guide plate;
the plug mounting plate is used for guiding test gas to the inside of a shell of an electronic parking actuator to be tested, the plug mounting plate is connected with an external gas source through a gas pipe, the plug mounting plate fills the test gas with certain pressure provided by the gas source into the shell of the electronic parking actuator, an air passage is arranged inside the plug mounting plate, after the opening end of the connector is sealed by the side plugging assembly, the air passage in the plug mounting plate keeps the connector communicated with an inner cavity of the shell of the electronic parking actuator, the test gas provided by the gas source enters the inner cavity of the shell of the electronic parking actuator through the air passage in the plug mounting plate, and the leak tester detects pressure change inside the electronic parking actuator, so that the test of the sealing performance of the electronic parking actuator is realized.
2. The electronic parking actuator sealing performance testing device according to claim 1, wherein two lower positioning pins are provided, two positioning holes are provided in the positioning bottom plate, the two lower positioning pins are located on the same straight line parallel to the length direction of the supporting plate, and the positioning block is located in the middle of the two lower positioning pins.
3. The electronic parking actuator sealing performance testing equipment according to claim 1, wherein the two fixing lugs of the housing of the electronic parking actuator are symmetrically arranged, the two pressing rods are arranged on the same straight line parallel to the length direction of the upper pressing plate, and the two pressing rods respectively apply pressing force to the electronic parking actuator at the two fixing lugs on the housing of the electronic parking actuator.
4. The electronic parking actuator sealing performance testing device according to claim 1, wherein the upper guide rods are arranged in parallel, and the pressing cylinder is located between the two upper guide rods.
CN201711402566.7A 2017-12-22 2017-12-22 Sealing performance testing equipment for electronic parking actuator Active CN108061628B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09145521A (en) * 1995-11-20 1997-06-06 Daihatsu Motor Co Ltd Airtightness tester for fuel tank
CN203894008U (en) * 2014-06-04 2014-10-22 颜贵斌 Flexible seal measurement mechanism
CN105067193A (en) * 2015-07-30 2015-11-18 太仓源凯汽车配件有限公司 Performer leak detector and application method thereof
CN106441737A (en) * 2016-11-30 2017-02-22 芜湖全程智能科技有限公司 Leakage testing method for electronic parking brake
CN106768697A (en) * 2016-11-30 2017-05-31 芜湖全程智能科技有限公司 For the frock of electric parking brake leak-testing
CN106768698A (en) * 2016-11-30 2017-05-31 芜湖全程智能科技有限公司 For the frock of electric parking brake air tightness test

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09145521A (en) * 1995-11-20 1997-06-06 Daihatsu Motor Co Ltd Airtightness tester for fuel tank
CN203894008U (en) * 2014-06-04 2014-10-22 颜贵斌 Flexible seal measurement mechanism
CN105067193A (en) * 2015-07-30 2015-11-18 太仓源凯汽车配件有限公司 Performer leak detector and application method thereof
CN106441737A (en) * 2016-11-30 2017-02-22 芜湖全程智能科技有限公司 Leakage testing method for electronic parking brake
CN106768697A (en) * 2016-11-30 2017-05-31 芜湖全程智能科技有限公司 For the frock of electric parking brake leak-testing
CN106768698A (en) * 2016-11-30 2017-05-31 芜湖全程智能科技有限公司 For the frock of electric parking brake air tightness test

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