CN220206952U - Air tightness test equipment for automobile electric control box body - Google Patents

Abstract

The utility model discloses air tightness testing equipment of an automobile electric cabinet, which comprises a machine table, a conveying system, a circulation main board, a first air tightness testing tool and a second air tightness testing tool, wherein the conveying system, the circulation main board, the first air tightness testing tool and the second air tightness testing tool are arranged on the machine table; the circulation main board is movably arranged on the conveying system, and can be conveyed to the first air tightness testing tool and the second air tightness testing tool under the conveying action of the conveying system; according to the utility model, the radiator shell of the communication equipment can be automatically conveyed to the first air tightness testing tool and the second air tightness testing tool, and the air tightness test of the outer cavity and the runner cavity of the automobile electric control box is automatically completed, so that the abnormal problems of workers in the air tightness testing operation process are greatly reduced, the operation difficulty and the labor intensity of the workers are greatly reduced, the air tightness testing efficiency is improved, the problems of collision of the automobile electric control box and poor air tightness testing are reduced, and the air tightness testing quality is improved.

Description

Air tightness test equipment for automobile electric control box body

Technical Field

The utility model relates to the technical field of automobile electric control box testing equipment, in particular to air tightness testing equipment for an automobile electric control box.

Background

The automobile electric control box body is an installation box body of the new energy automobile electric control system, and the automobile electric control box body is required to have good mechanical protection performance, sealing performance and heat dissipation performance.

As shown in fig. 1 and 2, a certain automotive electric control box in the prior art comprises an outer cavity 101 and a runner cavity 102, wherein the runner cavity 102 is positioned in the top of the outer cavity 101, an electric control system is installed in the outer cavity 101, a liquid cooling heat dissipation system is installed in the runner cavity 102, the outer cavity 101 is provided with a cavity wall side hole 103 and a cavity wall inclined hole 104 for installing a joint, and the runner cavity 102 is provided with two runner holes 105 and 106 for circulating cooling liquid. When the air tightness test is carried out, whether the outer cavity 101 and the runner cavity 102 of the automobile electric control box body meet the air tightness requirement or not needs to be tested respectively.

At present, two independent tools are adopted for testing the automobile electric control box body. The utility model provides a gas tightness test fixture of outer chamber of test car electric cabinet, its includes the base and installs the pushing down mechanism on the base, and the staff places the car electric cabinet on the base, and the pushing down mechanism of operation pushes down the top of car electric cabinet again, seals the upper and lower end in outer chamber of electric cabinet, and the chamber wall side opening and chamber wall slant hole are plugged up with the end cap to the lid, then pours into gas into in the outer chamber of car electric cabinet and carries out the gas tightness test. The other is a gas tightness test fixture special for testing the flow channel cavity of the automobile electric control box body, which comprises a base and a pressing mechanism arranged on the base, wherein a worker places the automobile electric control box body on the base, then operates the pressing mechanism to press the top of the automobile electric control box body, seals the upper end of the flow channel cavity of the electric control box body, plugs two flow channel holes, and then injects gas into the flow channel cavity of the automobile electric control box body to perform gas tightness test.

However, this air tightness test method has the following technical problems: the automobile electric control box body can not be automatically conveyed to the air tightness testing tool for testing the outer cavity of the automobile electric control box body and the air tightness testing tool for testing the runner cavity of the automobile electric control box body, workers need to move the automobile electric control box body continuously, the weight of an automobile electric control box body product is heavy, the product moving is laborious, the labor intensity is high, the testing efficiency is reduced, in the carrying process, some precise parts are likely to be poor due to collision of different degrees, and the air tightness testing quality is reduced. In addition, the plugs for plugging the side holes of the cavity wall, the inclined holes of the cavity wall and the runner holes often need to be manually plugged, so that the air tightness testing efficiency is further reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the air tightness testing equipment for the automobile electric control box body, which can automatically convey the radiator shell of the communication equipment to a first air tightness testing tool and a second air tightness testing tool and automatically complete the air tightness test of the outer cavity and the runner cavity of the automobile electric control box body; in the first airtight testing tool, the outer cavity and the runner cavity of the automobile electric control box body can be sealed through the matching of the circulation main board and the first airtight testing tool, and the cavity wall side hole and the cavity wall inclined hole can be automatically plugged, so that the airtight test of the outer cavity of the automobile electric control box body can be completed; in the second air tightness testing tool, the flow channel cavity of the automobile electric control box body can be sealed through the matching of the circulation main board and the second air tightness testing tool, and two flow channel holes can be automatically plugged, so that the air tightness test of the flow channel cavity of the automobile electric control box body can be completed; thereby reduce workman by a wide margin in the unusual problem of gas tightness test operation in-process to and reduce workman's the operation degree of difficulty and intensity of labour by a wide margin, improve gas tightness test efficiency, reduce car electric cabinet product and collide with and the poor problem of gas tightness test, improved gas tightness test quality.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the air tightness testing equipment of the automobile electric control box body comprises a machine table, a conveying system, a circulation main board, a first air tightness testing tool and a second air tightness testing tool, wherein the conveying system, the circulation main board, the first air tightness testing tool and the second air tightness testing tool are arranged on the machine table; the circulation main board is movably arranged on the conveying system, and can be conveyed to the first air tightness testing tool and the second air tightness testing tool under the conveying action of the conveying system; the installation platform is arranged on the circulation main board and is used for placing the automobile electric control box body, a first sealing ring which is used for achieving sealing fit with the outer cavity wall at the bottom of the automobile electric control box body is arranged on the installation platform, and a first plug which is used for plugging the side hole of the cavity wall of the automobile electric control box body is arranged at one end of the installation platform; the first airtight test fixture comprises a first vertical rod, a first fixed plate, a first lifting plate, a first lower pressing cylinder, a first plug cylinder and a second plug cylinder, wherein the first vertical rod is vertically arranged on the machine table, the first fixed plate is arranged at the upper end of the first vertical rod, the first lifting plate is arranged below the first fixed plate, the first lower pressing cylinder is arranged on the first fixed plate, a cylinder rod of the first lower pressing cylinder extends downwards and is connected with the first lifting plate, the first plug cylinder and the second plug cylinder are respectively arranged on the first lifting plate, the power output end of the first plug cylinder is in press fit with the first plug, the cylinder rod of the second plug cylinder is connected with a second plug for plugging an inclined hole of a cavity wall of an automobile electric control box body, the lower side of the first lifting plate is provided with a second sealing ring for achieving sealing fit with the top outer cavity wall of the automobile electric control box body and a third sealing ring for achieving sealing fit with the cavity wall of the automobile electric control box body, and the first lifting plate is provided with an air inlet hole for communicating with the first electric control box body; the second air tightness testing tool comprises a second vertical rod, a second fixing plate, a second lifting plate, a second pressing cylinder, a third plug cylinder and a fourth plug cylinder, wherein the second vertical rod is vertically arranged on the machine table, the second fixing plate is arranged at the upper end of the second vertical rod, the second lifting plate is arranged below the second fixing plate, the second pressing cylinder is arranged on the second fixing plate, a cylinder rod of the second pressing cylinder extends downwards and is connected with the second lifting plate, a fourth sealing ring which is used for achieving sealing fit with the flow channel cavity wall of the automobile electric control box body is arranged at the lower side of the second lifting plate, and a second air inlet hole which is used for communicating the flow channel cavity of the automobile electric control box body is formed in the second lifting plate; the third plug cylinder is transversely arranged at the lower side of one end of the second fixing plate, and a cylinder rod of the third plug cylinder is connected with a third plug for plugging one flow passage hole of the flow passage cavity of the automobile electric control box body; the fourth plug cylinder is transversely arranged on the lower side of the other end of the second fixing plate, and a cylinder rod of the fourth plug cylinder is connected with a fourth plug for plugging the other runner hole of the runner cavity of the automobile electric control box body.

Preferably, the conveying system comprises a first conveying device, a second conveying device, a third conveying device, a fourth conveying device, a fifth conveying device, a sixth conveying device, a first lifting mechanism and a second lifting mechanism; the first conveying device, the second conveying device, the third conveying device and the fourth conveying device are sequentially arranged on the machine table from front to back, the fifth conveying device is arranged below the third conveying device, the sixth conveying device is arranged below the second conveying device, the second conveying device corresponds to the position of the first air tightness test tool, and the third conveying device corresponds to the position of the second air tightness test tool; the first lifting mechanism is used for driving the first conveying device to lift, and under the action of the first lifting mechanism, the first conveying device can be lifted to the height flush with the second conveying device or lowered to the height flush with the sixth conveying device; the second lifting mechanism is used for driving the fourth conveying device to lift, and under the action of the second lifting mechanism, the fourth conveying device can be lifted to the height flush with the third conveying device or lowered to the height flush with the fifth conveying device.

Preferably, the first conveying device, the second conveying device, the third conveying device, the fourth conveying device, the fifth conveying device and the sixth conveying device respectively comprise a bottom supporting frame, a left supporting frame, a right supporting frame and rolling shafts, the left supporting frame and the right supporting frame are arranged on the bottom supporting frame, a plurality of rolling shafts are arranged at intervals, one end of each rolling shaft is rotatably arranged on the left supporting frame, the other end of each rolling shaft is rotatably arranged on the right supporting frame, and a rolling shaft sprocket is arranged on one end or the other end of each rolling shaft.

Preferably, a first motor is arranged on the bottom supporting frame of the first conveying device, a motor chain wheel is connected with a rotating shaft of the first motor, and a transmission chain is arranged between the motor chain wheel of the first motor and a roller chain wheel of the first conveying device; a second motor is arranged on the left support frame or the right support frame of the second conveying device or the third conveying device, a motor chain wheel is connected with a rotating shaft of the second motor, and a transmission chain is arranged between the motor chain wheel of the second motor and the roller chain wheels of the second conveying device and the third conveying device; a third motor is arranged on the bottom supporting frame of the fourth conveying device, a motor chain wheel is connected with a rotating shaft of the third motor, and a transmission chain is arranged between the motor chain wheel of the third motor and a roller chain wheel of the fourth conveying device; the left support frame or the right support frame of the fifth conveying device or the sixth conveying device is provided with a fourth motor, a rotating shaft of the fourth motor is connected with a motor chain wheel, and a transmission chain is arranged between the motor chain wheel of the fourth motor and roller chain wheels of the fifth conveying device and the sixth conveying device.

Preferably, a main board sensor is respectively arranged on the left support frame or the right support frame of the first conveying device, the second conveying device, the third conveying device, the fourth conveying device, the fifth conveying device and the sixth conveying device, and a main board sensing block which is in sensing fit with the main board sensor is arranged on one end of the circulating main board; photoelectric sensors for sensing the electric cabinet of the automobile are further arranged on the left support frame and the right support frame of the second conveying device and the third conveying device.

Preferably, the machine is provided with a machine table surface, and the first air tightness testing tool and the second air tightness testing tool are respectively arranged on the machine table surface; the upper end of the supporting block is penetrated in a gap between the adjacent rolling shafts; under the driving action of the first lower pressure cylinder, the first lifting plate can downwards press the automobile electric cabinet body and push the second conveying device to downwards move and compress the elastic mechanism, so that the circulation main board on the second conveying device is supported by the supporting block; under the driving action of the second pressing cylinder, the second lifting plate can downwards press the automobile electric cabinet body and push the third conveying device to downwards move and compress the elastic mechanism, so that the circulation main board on the third conveying device is supported by the supporting block; the elastic mechanism comprises a guide rod and a first spring, the table top of the machine table is provided with a guide hole, the lower end of the guide rod is movably arranged in the guide hole in a penetrating way, and the upper end of the guide rod is connected with a bottom supporting frame of the second conveying device or the third conveying device; the lower end of the first spring is connected with the table top of the machine table, and the upper end of the first spring is connected with the bottom supporting frame of the second conveying device or the third conveying device.

Preferably, the first lifting mechanism comprises a third fixed plate, a first lifting cylinder and a plurality of third vertical rods; the first lifting cylinder is vertically arranged on the lower side of the third fixed plate, a cylinder rod of the first lifting cylinder extends upwards and is connected with the bottom support frame of the first conveying device, a plurality of first sliding sleeves are arranged on the third fixed plate, the lower end of the third vertical rod is slidably arranged in the corresponding first sliding sleeve, and the upper end of the third vertical rod is connected with the bottom support frame of the first conveying device; the second lifting mechanism comprises a fourth fixed plate, a second lifting cylinder and a plurality of fourth vertical rods; the second lifting cylinder is vertically arranged on the lower side of the fourth fixing plate, a cylinder rod of the second lifting cylinder extends upwards and is connected with the bottom supporting frame of the fourth conveying device, a plurality of second sliding sleeves are arranged on the fourth fixing plate, the lower end of the fourth vertical rod is slidably arranged in the corresponding second sliding sleeve, and the upper end of the fourth vertical rod is connected with the bottom supporting frame of the fourth conveying device.

Preferably, four first vertical rods of the first air tightness testing tool are connected with four corners of the first fixing plate respectively, and two first pressing cylinders are arranged in parallel; a first auxiliary pressing cylinder is further vertically arranged on the first lifting plate, and a cylinder rod of the first auxiliary pressing cylinder extends downwards and is connected with a first pressing head for pressing a lateral protruding part of a cavity wall of the automobile electric control box body; four first vertical rods of the first air tightness testing tool are respectively connected with four corners of a first fixed plate, a first auxiliary compression cylinder is further vertically arranged on the first lifting plate, and a cylinder rod of the first auxiliary compression cylinder extends downwards and is connected with a first compression head for compressing lateral protruding parts of a cavity wall of an automobile electric control box body; four second vertical rods of the second air tightness testing tool are connected with four corners of the second fixing plate respectively, and two second pressing cylinders are arranged in parallel; the second air tightness testing tool is further provided with four sliding rods, the second fixing plate is provided with sliding holes, the lower ends of the sliding rods are connected with the second lifting plate, and the upper ends of the sliding rods movably penetrate through the sliding holes of the second fixing plate; the second lifting plate is further vertically provided with a second auxiliary pressing cylinder, and a cylinder rod of the second auxiliary pressing cylinder extends downwards and is connected with a second pressing head for pressing a lateral protruding part of the cavity wall of the automobile electric control box body.

Preferably, the first plug cylinder is a rotary cylinder, and a cylinder rod of the first plug cylinder transversely extends out and is connected with a rotary pull arm; the first plug of circulation mainboard includes fixed block, plug main part, first connecting rod, second connecting rod, ejector pin and second spring, fixed block fixed mounting is on mounting platform's one end, the plug main part sets up in the side of fixed block, the both ends of plug main part are connected with the one end of first connecting rod, second connecting rod, the other end of first connecting rod, second connecting rod transversely moves through the fixed block and suit the second spring, the tip of the other end of first connecting rod, second connecting rod is equipped with the nut that is used for preventing that the second spring from deviating from, the middle part of plug main part is connected with the one end of ejector pin, the other end of ejector pin transversely moves through the fixed block and with rotatory arm-drag press fit mutually.

The beneficial effects of the utility model are as follows: the utility model can convey the circulation main board to the first air tightness testing tool and the second air tightness testing tool by means of the conveying system and the circulation main board, and automatically and respectively complete the air tightness test of the outer cavity of the automobile electric control box and the flow channel cavity; in the first airtight testing tool, the outer cavity and the runner cavity of the automobile electric control box body can be sealed through the matching of the circulation main board and the first airtight testing tool, and the first plug cylinder and the second plug cylinder are utilized to automatically seal the side hole of the cavity wall and the inclined hole of the cavity wall so as to complete the airtight test of the outer cavity of the automobile electric control box body; in the second air tightness testing tool, the flow channel cavity of the automobile electric control box body can be sealed through the matching of the circulation main board and the second air tightness testing tool, and two flow channel holes can be automatically plugged by utilizing a third plug cylinder and a fourth plug cylinder, so that the air tightness test of the flow channel cavity of the automobile electric control box body is completed; thereby reduce workman by a wide margin in the unusual problem of gas tightness test operation in-process to and reduce workman's the operation degree of difficulty and intensity of labour by a wide margin, improve gas tightness test efficiency, reduce car electric cabinet product and collide with and the poor problem of gas tightness test, improved gas tightness test quality.

Drawings

Fig. 1 is one of the overall construction diagrams of an electric control box body of an automobile.

Fig. 2 is a second overall structure diagram of the electric control box of the automobile.

Fig. 3 is one of the overall structural diagrams of the present utility model.

FIG. 4 is a second overall block diagram of the present utility model.

Fig. 5 is one of the combined structural diagrams of the first air tightness testing tool, the second conveying device, the third conveying device and the corresponding circulation main board.

Fig. 6 is a second combination structure diagram of the first air tightness testing tool, the second conveying device, the third conveying device and the corresponding circulation main board.

Fig. 7 is one of the dispersion structures of the first air tightness testing tool, the second conveying device, the third conveying device and the corresponding circulation main board.

Fig. 8 is a second diagram of a first airtight testing tool, a second conveying device, a third conveying device and a corresponding distribution structure of a circulation main board.

Detailed Description

The structural and operational principles of the present utility model will be described in further detail below with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "in", etc. refer to an orientation or positional relationship based on that shown in the drawings, wherein the "front" direction refers to the side closest to the first conveying device and the "rear" direction refers to the side closest to the fourth conveying device, are merely for convenience in describing the present utility model and for simplicity in description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 3-8, referring to fig. 1 and 2 in combination, the utility model relates to an air tightness test device for an automobile electric cabinet, comprising a machine 1, a conveying system 2, a circulation main board 3, a first air tightness test tool 4 and a second air tightness test tool 5, wherein the conveying system 2, the circulation main board 3, the first air tightness test tool 4 and the second air tightness test tool 5 are arranged on the machine 1; the circulation main board 3 is movably arranged on the conveying system 2, and under the conveying action of the conveying system 2, the circulation main board 3 can be conveyed to the first air tightness test tool 4 and the second air tightness test tool 5; a mounting platform 31 for placing the automobile electric control box body is arranged on the circulation main board 3, a first sealing ring 32 for achieving sealing fit with the bottom outer cavity wall of the automobile electric control box body is arranged on the mounting platform 31, and a first plug 33 for blocking the cavity wall side hole 103 of the automobile electric control box body is arranged at one end of the mounting platform 31; the first tightness testing tool 4 comprises a first vertical rod 41, a first fixed plate 42, a first lifting plate 43, a first lower pressure cylinder 44, a first plug cylinder 45 and a second plug cylinder 46, wherein the first vertical rod 41 is vertically arranged on the machine table 1, the first fixed plate 42 is arranged at the upper end of the first vertical rod 41, the first lifting plate 43 is arranged below the first fixed plate 42, the first lower pressure cylinder 44 is arranged on the first fixed plate 42, a cylinder rod of the first lower pressure cylinder 44 extends downwards and is connected with the first lifting plate 43, the first plug cylinder 45 and the second plug cylinder 46 are respectively arranged on the first lifting plate 43, the power output end of the first plug cylinder 45 is in press fit with the first plug 33, the cylinder rod of the second plug cylinder 46 is connected with a second plug 461 for sealing the inclined hole 104 of the cavity wall of the automobile electric control box, the lower side of the first lifting plate 43 is provided with a second plug 431 for sealing fit with the top outer cavity wall of the automobile electric control box and a channel 433 for sealing fit with the first electric control box 433, and the first air inlet channel 433 for sealing the electric control box is communicated with the first air inlet channel 433; the second air tightness testing tool 5 comprises a second vertical rod 51, a second fixing plate 52, a second lifting plate 53, a second pressing cylinder 54, a third plug cylinder 55 and a fourth plug cylinder 56, wherein the second vertical rod 51 is vertically arranged on the machine table 1, the second fixing plate 52 is arranged at the upper end of the second vertical rod 51, the second lifting plate 53 is arranged below the second fixing plate 52, the second pressing cylinder 54 is arranged on the second fixing plate 52, a cylinder rod of the second pressing cylinder 54 extends downwards and is connected with the second lifting plate 53, a fourth sealing ring 531 for achieving sealing fit with a runner cavity wall of an automobile electric control box is arranged at the lower side of the second lifting plate 53, and a second air inlet 532 for communicating the runner cavity of the automobile electric control box is formed in the second lifting plate 53; the third plug cylinder 55 is transversely arranged at the lower side of one end of the second fixing plate 52, and a cylinder rod of the third plug cylinder 55 is connected with a third plug 551 for blocking one flow passage hole 105 of the flow passage cavity of the automobile electric control box body; the fourth plug cylinder 56 is transversely installed at the lower side of the other end of the second fixing plate 52, and a cylinder rod of the fourth plug cylinder 56 is connected with a fourth plug 561 for plugging another runner hole 106 of the runner cavity of the automobile electric control box body.

The utility model relates to a test method of air tightness test equipment of an automobile electric control box body, which comprises the following method steps:

s1, a worker places an automobile electric control box body on a circulation main board 3 on a conveying system 2, and seals the bottom outer cavity wall of the automobile electric control box body by a first sealing ring of the circulation main board 3;

s2, the circulation main board 3 and an automobile electric cabinet body on the circulation main board 3 reach the working position of the first air tightness test tool 4 together under the conveying action of the conveying system 2;

s3, a first lower pressure cylinder 44 of the first airtight testing tool 4 drives a first lifting plate 43 to press downwards, so that the first lifting plate 43 presses against the top of the automobile electric control box body, meanwhile, a second sealing ring 431 at the lower side of the first lifting plate 43 seals the outer cavity wall of the top of the automobile electric control box body, and a third sealing ring 432 at the lower side of the first lifting plate 43 seals the flow channel cavity wall of the automobile electric control box body;

s4, the power output end of the first plug cylinder 45 presses the first plug 33, so that the first plug 33 seals the cavity wall side hole 103 of the automobile electric control box body, and the cylinder rod of the second plug cylinder 46 drives the second plug 461 to seal the cavity wall inclined hole 104 of the automobile electric control box body;

s5, injecting a proper amount of gas into the outer cavity of the automobile electric control box body from the first air inlet hole of the first lifting plate 43, detecting whether air leakage occurs or not, so as to perform air tightness test on the outer cavity of the automobile electric control box body, and resetting the first plug cylinder 45, the second plug cylinder 46 and the first lower pressure cylinder 44 respectively after the test is completed;

S6, the circulation main board 3 and an automobile electric cabinet body above the circulation main board 3 reach the working position of the second air tightness test tool 5 together under the conveying action of the conveying system 2;

s7, a second pressing cylinder 54 of the second air tightness testing tool 5 drives a second lifting plate 53 to press downwards, so that the second lifting plate 53 presses against the top of the automobile electric control box body, and a fourth sealing ring 531 at the lower side of the second lifting plate 53 seals the wall of a flow channel cavity of the automobile electric control box body;

s8, driving a third plug to plug one flow passage hole of the flow passage cavity of the automobile electric control box body by a cylinder rod of the third plug cylinder 55, and driving another flow passage hole of the flow passage cavity of the automobile electric control box body by a fourth plug by a cylinder rod of the fourth plug cylinder 56;

s9, injecting a proper amount of gas into the flow channel cavity of the automobile electric control box body from the second air inlet 532 of the second lifting plate 53, detecting whether air leakage occurs or not, so as to perform air tightness test on the flow channel cavity of the automobile electric control box body, and resetting the third plug cylinder 55, the fourth plug cylinder 56 and the second lower pressure cylinder 54 respectively after the test is completed;

s10, conveying the circulation main board 3 and the automobile electric control box body on the circulation main board 3 together by the conveying system 2 to finish the air tightness test of the automobile electric control box body.

The utility model utilizes the conveying system 2 and the circulation main board 3, the conveying system 2 can convey the circulation main board 3 to the first air tightness testing tool 4 and the second air tightness testing tool 5, and automatically and respectively complete the air tightness test of the outer cavity 101 and the runner cavity 102 of the automobile electric control box; in the first tightness testing tool 4, the outer cavity 101 and the runner cavity 102 of the automobile electric control box body can be sealed through the matching of the circulation main board 3 and the first tightness testing tool 4, and the first plug cylinder 45 and the second plug cylinder 46 are utilized to automatically seal the cavity wall side hole 103 and the cavity wall inclined hole 104 so as to complete the tightness test of the outer cavity 101 of the automobile electric control box body; in the second air tightness testing tool 5, the flow channel cavity 102 of the automobile electric control box body can be sealed through the matching of the circulation main board 3 and the second air tightness testing tool 5, and the two flow channel holes 105 and 106 are automatically plugged by utilizing the third plug cylinder 55 and the fourth plug cylinder 56 so as to finish the air tightness test of the flow channel cavity 102 of the automobile electric control box body; thereby reduce workman by a wide margin in the unusual problem of gas tightness test operation in-process to and reduce workman's the operation degree of difficulty and intensity of labour by a wide margin, improve gas tightness test efficiency, reduce car electric cabinet product and collide with and the poor problem of gas tightness test, improved gas tightness test quality.

As shown in fig. 3-8, referring to fig. 1 and 2 in combination, the conveying system 2 includes a first conveying device 21, a second conveying device 22, a third conveying device 23, a fourth conveying device 24, a fifth conveying device 25, a sixth conveying device 26, a first lifting mechanism 27, and a second lifting mechanism 28; the first conveying device 21, the second conveying device 22, the third conveying device 23 and the fourth conveying device 24 are sequentially arranged on the machine table 1 from front to back, the fifth conveying device 25 is arranged below the third conveying device 23, the sixth conveying device 26 is arranged below the second conveying device 22, the second conveying device 22 corresponds to the position of the first air tightness test tool 4, and the third conveying device 23 corresponds to the position of the second air tightness test tool 5; the first lifting mechanism 27 is used for driving the first conveying device 21 to lift, and under the action of the first lifting mechanism 27, the first conveying device 21 can be lifted to the height level with the second conveying device 22 or lowered to the height level with the sixth conveying device 26; the second lifting mechanism 28 is used for driving the fourth conveying device 24 to lift, and under the action of the second lifting mechanism 28, the fourth conveying device 24 can be lifted to a height level with the third conveying device 23 or lowered to a height level with the fifth conveying device 25. When the automobile electric control box body is subjected to air tightness test, the automobile electric control box body is placed on the circulation main board 3 of the first conveying device 21 by a mechanical arm or a human hand; the automobile electric control box body firstly reaches the second conveying device 22 along with the circulation main board 3, namely enters the position of the first air tightness testing tool 4, and air tightness testing of the outer cavity of the automobile electric control box body is carried out; then the air tightness of the flow channel cavity of the automobile electric control box body is tested after the air tightness reaches the third conveying device 23, namely the position of entering the second air tightness testing tool 5; then the air tightness test device reaches the fourth conveying device 24, if the air tightness test is bad, the automobile electric control box body stops moving after reaching the fourth conveying device 24, and waits for a manipulator or a human hand to remove the automobile electric control box body with the bad air tightness test; if the air tightness test is qualified, the fourth conveying device 24 is lowered to the height level with the fifth conveying device 25, the automobile electric control box body sequentially passes through the fifth conveying device 25 and the sixth conveying device 26 along with the circulation main board 3, returns to the first conveying device 21, and the automobile electric control box body after the test is carried away by a manipulator or a human hand. The technical effects produced in this way are: the automatic conveying device not only can automatically convey the automobile electric control box body, but also can enable the automobile electric control box body to return to the original position after the automobile electric control box body is qualified in test, and the qualified products are removed by an original manipulator or a human hand.

As shown in fig. 3-8, the first conveying device 21, the second conveying device 22, the third conveying device 23, the fourth conveying device 24, the fifth conveying device 25 and the sixth conveying device 26 respectively comprise a bottom supporting frame 291, a left supporting frame 292, a right supporting frame 293 and rollers 294, the left supporting frame 292 and the right supporting frame 293 are installed on the bottom supporting frame 291, a plurality of rollers 294 are arranged at intervals, one end of each roller 294 is rotatably installed on the left supporting frame 292, the other end of each roller 294 is rotatably installed on the right supporting frame 293, and a roller chain wheel 2941 is installed on one end or the other end of each roller 294.

As shown in fig. 3-8, the bottom supporting frame 291 of the first conveying device 21 is provided with a first motor 295, a rotating shaft of the first motor 295 is connected with a motor sprocket, and a transmission chain (not shown) is arranged between the motor sprocket of the first motor 295 and the roller sprocket 2941 of the first conveying device 21; a second motor 296 is mounted on the left support 292 or the right support 293 of the second conveying device 22 or the third conveying device 23, a motor sprocket 2961 is connected to a rotating shaft of the second motor 296, and a transmission chain (not shown) is mounted between the motor sprocket of the second motor 296 and the roller sprockets 2941 of the second conveying device 22 and the third conveying device 23; the bottom supporting frame 291 of the fourth conveying device 24 is provided with a third motor 297, a rotating shaft of the third motor 297 is connected with a motor sprocket, and a transmission chain (not shown) is arranged between the motor sprocket of the third motor 297 and the roller sprocket 2941 of the fourth conveying device 24; a fourth motor 298 is mounted on the left support 292 or the right support 293 of the fifth conveying device 25 or the sixth conveying device 26, a motor sprocket is connected to a rotating shaft of the fourth motor 298, and a transmission chain (not shown) is mounted between the motor sprocket of the fourth motor 298 and the roller sprockets 2941 of the fifth conveying device 25 and the sixth conveying device 26.

As shown in fig. 3-8, the first conveying device 21, the second conveying device 22, the third conveying device 23, the fourth conveying device 24, the fifth conveying device 25 and the sixth conveying device 26 are respectively provided with a main board sensor 6 on a left support 292 or a right support 293, and one end of the circulation main board 3 is provided with a main board sensor block 34 which is in sensing fit with the main board sensor 6; the left support frame 292 and the right support frame 293 of the second conveying device 22 and the third conveying device 23 are also provided with a photoelectric sensor 7 for sensing the electric control box of the automobile.

As shown in fig. 3-8, the machine 1 is provided with a machine table top 11, and the first air tightness testing tool 4 and the second air tightness testing tool 5 are respectively installed on the machine table top 11; the machine table 11 is further provided with a plurality of elastic mechanisms 12 and a plurality of supporting blocks 13, the bottom supporting frames 291 of the second conveying device 22 and the third conveying device 23 are respectively arranged above the corresponding elastic mechanisms 12, and the upper ends of the supporting blocks 13 are arranged in gaps between the adjacent rollers 294 in a penetrating manner; under the driving action of the first pressing cylinder 44, the first lifting plate 43 can press down to the automobile electric cabinet body and push the second conveying device 22 to move down and compress the elastic mechanism 12, so that the circulation main board 3 on the second conveying device 22 is supported by the supporting block 13; under the driving action of the second pressing cylinder 54, the second lifting plate 53 can press down to the automobile electric cabinet body and push the third conveying device 23 to move down and compress the elastic mechanism 12, so that the circulation main board 3 on the third conveying device 23 is supported by the supporting block 13; the elastic mechanism 12 comprises a guide rod 121 and a first spring 122, the table top 11 is provided with a guide hole 111, the lower end of the guide rod 121 is movably arranged in the guide hole 111 in a penetrating way, and the upper end of the guide rod 121 is connected with a bottom supporting frame 291 of the second conveying device 22 or the third conveying device 23; the lower end of the first spring 122 is connected to the table top 11, and the upper end of the first spring 122 is connected to the bottom supporting frame 291 of the second conveying device 22 or the third conveying device 23. By arranging the elastic mechanism 12, when the first lifting plate 43 and the second lifting plate 53 are not pressed down, the second conveying device 22 and the third conveying device 23 can normally convey the circulation main board 3 and the automobile electric control box body; when the first lifting plate 43 and the second lifting plate 53 are pressed down, the second conveying device 22 and the third conveying device 23 can be forced to compress the elastic mechanism 12, so that the circulation main board 3 is supported by the supporting block 13, and the supporting stability of the circulation main board 3 and the automobile electric control box body can be obviously improved.

As shown in fig. 3 and 4, the first lifting mechanism 27 includes a third fixing plate 271, a first lifting cylinder 272 and a plurality of third uprights 273; the first lifting cylinder 272 is vertically installed at the lower side of the third fixing plate 271, the cylinder rod of the first lifting cylinder 272 extends upward and is connected with the bottom supporting frame 291 of the first conveying device 21, a plurality of first sliding sleeves 2711 are arranged on the third fixing plate 271, the lower end of the third upright rod 273 is slidably installed in the corresponding first sliding sleeve 2711, and the upper end of the third upright rod 273 is connected with the bottom supporting frame 291 of the first conveying device 21; the second lifting mechanism 28 includes a fourth fixing plate 281, a second lifting cylinder 282 and a plurality of fourth uprights 283; the second lifting cylinder 282 is vertically installed at the lower side of the fourth fixing plate 281, a cylinder rod of the second lifting cylinder 282 extends upwards and is connected with the bottom supporting frame 291 of the fourth conveying device 24, a plurality of second sliding sleeves 2811 are arranged on the fourth fixing plate 281, the lower end of the fourth vertical rod 283 is slidably installed in the corresponding second sliding sleeve 2811, and the upper end of the fourth vertical rod 283 is connected with the bottom supporting frame 291 of the fourth conveying device 24.

As shown in fig. 3-8, the first upright rods 41 of the first air tightness testing tool 4 are provided with four first upright rods 41, the four first upright rods 41 are respectively connected with four corners of the first fixing plate 42, and the first lower pressure cylinders 44 are provided with two side by side; a first auxiliary pressing cylinder is further vertically installed on the first lifting plate 43, and a cylinder rod of the first auxiliary pressing cylinder extends downwards and is connected with a first pressing head for pressing a lateral protruding part of a cavity wall of the automobile electric control box body; four first vertical rods 41 of the first tightness testing tool 4 are arranged, the four first vertical rods 41 are respectively connected with four corners of a first fixed plate 42, a first auxiliary compression cylinder 47 is further vertically arranged on the first lifting plate 43, and a cylinder rod of the first auxiliary compression cylinder 47 extends downwards and is connected with a first compression head 471 for compressing a lateral protruding part 107 of a cavity wall of an automobile electric control box body; four second vertical rods 51 of the second air tightness testing tool 5 are arranged, the four second vertical rods 51 are respectively connected with four corners of a second fixing plate 52, and two second pressing cylinders 54 are arranged in parallel; the second air tightness testing tool 5 is further provided with four slide bars 58, the second fixing plate 52 is provided with slide holes, the lower ends of the slide bars 58 are connected with the second lifting plate 53, and the upper ends of the slide bars 58 movably penetrate through the slide holes of the second fixing plate 52; the second lifting plate 53 is further vertically provided with a second auxiliary pressing cylinder 57, and a cylinder rod of the second auxiliary pressing cylinder 57 extends downwards and is connected with a second pressing head 584 for pressing the lateral protruding part 107 of the cavity wall of the automobile electric control box.

As shown in fig. 3-8, the first plug cylinder 45 is a rotary cylinder, and a cylinder rod of the first plug cylinder 45 transversely extends out and is connected with a rotary pulling arm 451; the first plug 33 of the flow main board 3 includes a fixed block 331, a plug main body 332, a first link 333, a second link 334, a push rod 335 and a second spring 336, the fixed block 331 is fixedly mounted on one end of the mounting platform 31, the plug main body 332 is disposed at a side of the fixed block 331, two ends of the plug main body 332 are connected with one ends of the first link 333 and the second link 334, the other ends of the first link 333 and the second link 334 transversely movably pass through the fixed block 331 and are sleeved with the second spring 336, a nut (not shown) for preventing the second spring 336 from falling off is disposed at an end of the other ends of the first link 333 and the second link 334, a middle part of the plug main body 332 is connected with one end of the push rod 335, and the other end of the push rod 335 transversely movably passes through the fixed block 331 and is in press fit with the rotary pull arm 451.

In the foregoing, only the preferred embodiment of the present utility model is described, and any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical solutions of the present utility model fall within the scope of the technical solutions of the present utility model.

Claims (9)

1. The utility model provides a gas tightness test equipment of car electric cabinet body which characterized in that: the device comprises a machine table, a conveying system, a circulation main board, a first air tightness test tool and a second air tightness test tool, wherein the conveying system, the circulation main board, the first air tightness test tool and the second air tightness test tool are arranged on the machine table; the circulation main board is movably arranged on the conveying system, and can be conveyed to the first air tightness testing tool and the second air tightness testing tool under the conveying action of the conveying system; the installation platform is arranged on the circulation main board and is used for placing the automobile electric control box body, a first sealing ring which is used for achieving sealing fit with the outer cavity wall at the bottom of the automobile electric control box body is arranged on the installation platform, and a first plug which is used for plugging the side hole of the cavity wall of the automobile electric control box body is arranged at one end of the installation platform; the first airtight test fixture comprises a first vertical rod, a first fixed plate, a first lifting plate, a first lower pressing cylinder, a first plug cylinder and a second plug cylinder, wherein the first vertical rod is vertically arranged on the machine table, the first fixed plate is arranged at the upper end of the first vertical rod, the first lifting plate is arranged below the first fixed plate, the first lower pressing cylinder is arranged on the first fixed plate, a cylinder rod of the first lower pressing cylinder extends downwards and is connected with the first lifting plate, the first plug cylinder and the second plug cylinder are respectively arranged on the first lifting plate, the power output end of the first plug cylinder is in press fit with the first plug, the cylinder rod of the second plug cylinder is connected with a second plug for plugging an inclined hole of a cavity wall of an automobile electric control box body, the lower side of the first lifting plate is provided with a second sealing ring for achieving sealing fit with the top outer cavity wall of the automobile electric control box body and a third sealing ring for achieving sealing fit with the cavity wall of the automobile electric control box body, and the first lifting plate is provided with an air inlet hole for communicating with the first electric control box body; the second air tightness testing tool comprises a second vertical rod, a second fixing plate, a second lifting plate, a second pressing cylinder, a third plug cylinder and a fourth plug cylinder, wherein the second vertical rod is vertically arranged on the machine table, the second fixing plate is arranged at the upper end of the second vertical rod, the second lifting plate is arranged below the second fixing plate, the second pressing cylinder is arranged on the second fixing plate, a cylinder rod of the second pressing cylinder extends downwards and is connected with the second lifting plate, a fourth sealing ring which is used for achieving sealing fit with the flow channel cavity wall of the automobile electric control box body is arranged at the lower side of the second lifting plate, and a second air inlet hole which is used for communicating the flow channel cavity of the automobile electric control box body is formed in the second lifting plate; the third plug cylinder is transversely arranged at the lower side of one end of the second fixing plate, and a cylinder rod of the third plug cylinder is connected with a third plug for plugging one flow passage hole of the flow passage cavity of the automobile electric control box body; the fourth plug cylinder is transversely arranged on the lower side of the other end of the second fixing plate, and a cylinder rod of the fourth plug cylinder is connected with a fourth plug for plugging the other runner hole of the runner cavity of the automobile electric control box body.

2. The air tightness test device of an automobile electric control box according to claim 1, wherein: the conveying system comprises a first conveying device, a second conveying device, a third conveying device, a fourth conveying device, a fifth conveying device, a sixth conveying device, a first lifting mechanism and a second lifting mechanism; the first conveying device, the second conveying device, the third conveying device and the fourth conveying device are sequentially arranged on the machine table from front to back, the fifth conveying device is arranged below the third conveying device, the sixth conveying device is arranged below the second conveying device, the second conveying device corresponds to the position of the first air tightness test tool, and the third conveying device corresponds to the position of the second air tightness test tool; the first lifting mechanism is used for driving the first conveying device to lift, and under the action of the first lifting mechanism, the first conveying device can be lifted to the height flush with the second conveying device or lowered to the height flush with the sixth conveying device; the second lifting mechanism is used for driving the fourth conveying device to lift, and under the action of the second lifting mechanism, the fourth conveying device can be lifted to the height flush with the third conveying device or lowered to the height flush with the fifth conveying device.

3. The air tightness test device of an automobile electric control box according to claim 2, wherein: the first conveying device, the second conveying device, the third conveying device, the fourth conveying device, the fifth conveying device and the sixth conveying device respectively comprise a bottom supporting frame, a left supporting frame, a right supporting frame and rolling shafts, wherein the left supporting frame and the right supporting frame are arranged on the bottom supporting frame, a plurality of rolling shafts are arranged at intervals, one end of each rolling shaft is rotatably arranged on the left supporting frame, the other end of each rolling shaft is rotatably arranged on the right supporting frame, and one end or the other end of each rolling shaft is provided with a rolling shaft sprocket.

4. A gas tightness test device for an automotive electric control box according to claim 3, wherein: the bottom support frame of the first conveying device is provided with a first motor, a rotating shaft of the first motor is connected with a motor chain wheel, and a transmission chain is arranged between the motor chain wheel of the first motor and a roller chain wheel of the first conveying device; a second motor is arranged on the left support frame or the right support frame of the second conveying device or the third conveying device, a motor chain wheel is connected with a rotating shaft of the second motor, and a transmission chain is arranged between the motor chain wheel of the second motor and the roller chain wheels of the second conveying device and the third conveying device; a third motor is arranged on the bottom supporting frame of the fourth conveying device, a motor chain wheel is connected with a rotating shaft of the third motor, and a transmission chain is arranged between the motor chain wheel of the third motor and a roller chain wheel of the fourth conveying device; the left support frame or the right support frame of the fifth conveying device or the sixth conveying device is provided with a fourth motor, a rotating shaft of the fourth motor is connected with a motor chain wheel, and a transmission chain is arranged between the motor chain wheel of the fourth motor and roller chain wheels of the fifth conveying device and the sixth conveying device.

5. A gas tightness test device for an automotive electric control box according to claim 3, wherein: the first conveying device, the second conveying device, the third conveying device, the fourth conveying device, the fifth conveying device and the sixth conveying device are respectively provided with a main board sensor on a left support frame or a right support frame, and one end of the circulation main board is provided with a main board sensing block which is in sensing fit with the main board sensor; photoelectric sensors for sensing the electric cabinet of the automobile are further arranged on the left support frame and the right support frame of the second conveying device and the third conveying device.

6. A gas tightness test device for an automotive electric control box according to claim 3, wherein: the machine table is provided with a machine table surface, and the first air tightness testing tool and the second air tightness testing tool are respectively arranged on the machine table surface; the upper end of the supporting block is penetrated in a gap between the adjacent rolling shafts; under the driving action of the first lower pressure cylinder, the first lifting plate can downwards press the automobile electric cabinet body and push the second conveying device to downwards move and compress the elastic mechanism, so that the circulation main board on the second conveying device is supported by the supporting block; under the driving action of the second pressing cylinder, the second lifting plate can downwards press the automobile electric cabinet body and push the third conveying device to downwards move and compress the elastic mechanism, so that the circulation main board on the third conveying device is supported by the supporting block; the elastic mechanism comprises a guide rod and a first spring, the table top of the machine table is provided with a guide hole, the lower end of the guide rod is movably arranged in the guide hole in a penetrating way, and the upper end of the guide rod is connected with a bottom supporting frame of the second conveying device or the third conveying device; the lower end of the first spring is connected with the table top of the machine table, and the upper end of the first spring is connected with the bottom supporting frame of the second conveying device or the third conveying device.

7. A gas tightness test device for an automotive electric control box according to claim 3, wherein: the first lifting mechanism comprises a third fixed plate, a first lifting cylinder and a plurality of third vertical rods; the first lifting cylinder is vertically arranged on the lower side of the third fixed plate, a cylinder rod of the first lifting cylinder extends upwards and is connected with the bottom support frame of the first conveying device, a plurality of first sliding sleeves are arranged on the third fixed plate, the lower end of the third vertical rod is slidably arranged in the corresponding first sliding sleeve, and the upper end of the third vertical rod is connected with the bottom support frame of the first conveying device; the second lifting mechanism comprises a fourth fixed plate, a second lifting cylinder and a plurality of fourth vertical rods; the second lifting cylinder is vertically arranged on the lower side of the fourth fixing plate, a cylinder rod of the second lifting cylinder extends upwards and is connected with the bottom supporting frame of the fourth conveying device, a plurality of second sliding sleeves are arranged on the fourth fixing plate, the lower end of the fourth vertical rod is slidably arranged in the corresponding second sliding sleeve, and the upper end of the fourth vertical rod is connected with the bottom supporting frame of the fourth conveying device.

8. The air tightness test device of an automobile electric control box according to claim 1, wherein: four first vertical rods of the first air tightness testing tool are connected with four corners of the first fixing plate respectively, and two first lower pressure cylinders are arranged in parallel; a first auxiliary pressing cylinder is further vertically arranged on the first lifting plate, and a cylinder rod of the first auxiliary pressing cylinder extends downwards and is connected with a first pressing head for pressing a lateral protruding part of a cavity wall of the automobile electric control box body; four first vertical rods of the first air tightness testing tool are respectively connected with four corners of a first fixed plate, a first auxiliary compression cylinder is further vertically arranged on the first lifting plate, and a cylinder rod of the first auxiliary compression cylinder extends downwards and is connected with a first compression head for compressing lateral protruding parts of a cavity wall of an automobile electric control box body; four second vertical rods of the second air tightness testing tool are connected with four corners of the second fixing plate respectively, and two second pressing cylinders are arranged in parallel; the second air tightness testing tool is further provided with four sliding rods, the second fixing plate is provided with sliding holes, the lower ends of the sliding rods are connected with the second lifting plate, and the upper ends of the sliding rods movably penetrate through the sliding holes of the second fixing plate; the second lifting plate is further vertically provided with a second auxiliary pressing cylinder, and a cylinder rod of the second auxiliary pressing cylinder extends downwards and is connected with a second pressing head for pressing a lateral protruding part of the cavity wall of the automobile electric control box body.

9. The air tightness test device of an automobile electric control box according to claim 1, wherein: the first plug cylinder is a rotary cylinder, and a cylinder rod of the first plug cylinder transversely extends out and is connected with a rotary pull arm; the first plug of circulation mainboard includes fixed block, plug main part, first connecting rod, second connecting rod, ejector pin and second spring, fixed block fixed mounting is on mounting platform's one end, the plug main part sets up in the side of fixed block, the both ends of plug main part are connected with the one end of first connecting rod, second connecting rod, the other end of first connecting rod, second connecting rod transversely moves through the fixed block and suit the second spring, the tip of the other end of first connecting rod, second connecting rod is equipped with the nut that is used for preventing that the second spring from deviating from, the middle part of plug main part is connected with the one end of ejector pin, the other end of ejector pin transversely moves through the fixed block and with rotatory arm-drag press fit mutually.