CN215064246U

CN215064246U - Part repair workbench

Info

Publication number: CN215064246U
Application number: CN202120884223.4U
Authority: CN
Inventors: 徐小明; 任强
Original assignee: Chengxi Shipyard Co Ltd
Current assignee: Chengxi Shipyard Co Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2021-12-07
Anticipated expiration: 2031-04-27

Abstract

The utility model relates to the technical field of ship repair, in particular to a part repair workbench, which comprises a table-board main body, a stainless steel cladding plate and a workbench stand column, wherein the stainless steel cladding plate is laid above the table-board main body to form a repair workbench table-board; at least one tool cabinet in the tool cabinets is of a drawer type tray structure; except the tool cabinet with the drawer type tray structure, other tool cabinets adopt a double-opening type or single-opening type cabinet door structure, and a cabinet door handle lock pin accessory is arranged on the double-opening type or single-opening type cabinet door structure; and a compressed air pipeline is arranged along the circumferential side surface of the table top main body, and a plurality of quick connectors are arranged on the compressed air pipeline at intervals. The utility model discloses reduce operating personnel's intensity of labour, improved the efficiency and the quality of repair operation.

Description

Part repair workbench

Technical Field

The utility model relates to a ship repair technical field, concretely relates to part repair work platform.

Background

For a long time, measurement and repair of main and auxiliary machine parts (such as cylinder heads, rocker arm seats, air inlet and outlet valve rods, connecting rods and the like) of a ship repair workshop of a company are operated on the ground or a ground base plate, a constructor squats for a long time or bends over to operate for a long time to bring large fatigue load to the body, the phenomenon of wave work in the production preparation process is serious because tools are not intensively placed at fixed points in the construction process, and the parts are randomly placed without fixed points and are inconvenient to identify, so that the whole site is dirty, messy and bad. Therefore, it is necessary to design a main and auxiliary machine part repair workbench to solve the above problems.

In addition, for some parts with a large number of repairs, the measurement of the inner diameter of the part is performed by using a general measuring tool in the past, the measurement precision is greatly influenced by the skill of an operator, the measurement stability is poor, and the measurement efficiency is low. Therefore, there is a need for improvement in the stability of measurement and the efficiency of measurement by techniques.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a part repair work platform aims at reducing operating personnel's intensity of labour, improves the efficiency and the quality of repairing the operation. The specific technical scheme is as follows:

a part repair workbench comprises a workbench surface main body, a stainless steel shroud plate and a workbench stand column, wherein the stainless steel shroud plate is laid above the workbench surface main body to form a repair workbench surface, the workbench stand column is arranged below the workbench surface main body, and a plurality of tool cabinets are sequentially and adjacently arranged below the workbench surface main body; at least one tool cabinet in the tool cabinets is of a drawer type tray structure; except the tool cabinet with the drawer type tray structure, other tool cabinets adopt a double-opening type or single-opening type cabinet door structure, and a cabinet door handle lock pin accessory is arranged on the double-opening type or single-opening type cabinet door structure; and a compressed air pipeline is arranged along the circumferential side surface of the table top main body, and a plurality of quick connectors are arranged on the compressed air pipeline at intervals.

As the utility model discloses a preferred scheme, the part repair workstation is installed subaerial in the repair shop of mill, the subaerial compressed air supply pipe of having buried underground in the repair shop, the compressed air source of mill is connected to the compressed air supply pipe, the compressed air supply pipe pass through the pipeline with the compressed air pipeline is connected.

In order to facilitate the rapid and accurate measurement of the inner hole of the part, the scheme of further improvement is as follows: the utility model discloses a pneumatic repair device, including repair workstation mesa, pneumatic type logical no-go gage unit, servo electric putter's telescopic link upwards passes repair workstation is erect and is set up behind the repair workstation mesa top, servo electric putter's telescopic link top still is provided with a micro-gap switch, micro-gap switch connects the MCU controller.

In order to improve the automation degree of measurement, a positioning disc is arranged at the top end of a telescopic rod of the servo electric push rod, a counter bore is formed in the middle of the positioning disc, a micro switch is installed in the counter bore of the positioning disc, and a micro contact of the micro switch is higher than the upper plane of the positioning disc.

The utility model discloses in, the pneumatic gauge head of cylinder type includes when examining test and part hole clearance fit's cylinder plug gauge, is connected the handle of cylinder plug gauge, setting are in the inside gas circuit distribution chamber of cylinder plug gauge sets up a plurality of quantity intercommunication that distribute along circumference on the excircle of cylinder plug gauge the venthole in gas circuit distribution chamber, be provided with the intercommunication on the handle the air flue in gas circuit distribution chamber, the air flue passes through pneumatic tube and connects electronic type pneumatic measuring instrument.

Different with the structure that conventional cylinder plug gauge has logical end and end, the utility model provides a cylinder plug gauge is complete big clearance fit with the part hole, and it is qualified whether to rely on the pneumatic measuring method to come dynamic detection internal diameter size, and the cylinder plug gauge can be "blocked" and can't continue to move down by servo electric putter's telescopic link when moving down the unqualified position of size detection, and servo electric putter's telescopic link just can move down gradually and give the way only when the size detection is qualified to let the cylinder plug gauge pass through smoothly in the part hole.

During measurement, an operator holds a handle of the cylindrical plug gauge, inserts the cylindrical plug gauge into an inner hole of a part, simulates a conventional cylindrical plug gauge detection method to detect, presses a micro switch at the top of a telescopic rod on a servo electric push rod to enable the telescopic rod of the servo electric push rod to move downwards at a certain detection speed, and indicates that the inner diameter of the part is qualified when the cylindrical plug gauge can smoothly move downwards in the inner hole of the part; if the telescopic rod of the servo electric push rod stops moving downwards in the detection process, the cylindrical plug gauge is blocked by the telescopic rod and cannot smoothly pass through an inner hole of the part, and the inner diameter size of the part is unqualified.

The action of the telescopic rod of the servo electric push rod is controlled by the MCU controller, the MCU controller obtains the dynamic size of the inner diameter of the part through the electronic pneumatic measuring instrument in the measuring process, the telescopic rod of the servo electric push rod stops to block the downward movement of the cylindrical plug gauge when the size of the inner diameter of the part is found to be out of tolerance, and the cylindrical plug gauge is equivalently clamped, so that an operator can know that the inner diameter of the part is unqualified in detection. If the dynamic size of the inner diameter of the part obtained by the electronic pneumatic measuring instrument is qualified all the time in the detection process, the telescopic rod of the servo electric push rod moves downwards until the set limit position according to the set measurement speed all the time, so that the cylindrical plug gauge smoothly passes through the inner hole of the part, and an operator can know that the detection result of the inner diameter of the part is qualified.

The utility model discloses in, the air supply that pneumatic type leads to no-go gage unit used comes from compressed air pipeline, compressed air pipeline is provided with automatic pressure control valve on the road.

In order to improve the measurement precision of the inner hole of the part, the electronic pneumatic measuring instrument is further provided with a correction comparison ring used for correcting the precision of the cylindrical pneumatic measuring head in a matching manner, and the correction comparison ring is used for correcting the precision of the cylindrical pneumatic measuring head in advance before measurement.

As a further improvement of the present invention, the upper end surface of the positioning plate is provided with a permanent magnet ring for magnetically attracting the lower end surface of the cylinder type pneumatic probe when measuring.

The lower end face of the cylindrical pneumatic measuring head is magnetically attracted by the permanent magnet ring, so that an operator does not need to hold the handle all the time in the detection process, and automatic measurement is realized.

A use method of a part repair workbench comprises the steps of using a pneumatic go-no-go gauge unit on a repair station to quickly detect an inner hole of a part, wherein the detection method comprises the following steps:

(1) and (3) correcting before measurement: selecting a correction comparison ring with the corresponding inner diameter size of the same specification according to a part to be detected, inserting a cylindrical pneumatic measuring head into an inner hole of the correction comparison ring, and performing precision correction on the cylindrical pneumatic measuring head;

(2) and (3) mounting parts: placing a part to be detected at a detection position of a repair station, placing a telescopic rod of a servo electric push rod at the approximate center of an inner hole of the part, and padding a high block below the part if necessary; adjusting the height of the top end of a telescopic rod on the servo electric push rod to a height corresponding to the initial measurement position, and setting the telescopic range of the telescopic rod on the servo electric push rod through an MCU controller to enable the telescopic range to correspond to the upper and lower position detection range of the inner hole of the part;

(3) measuring the inner diameter of the part: the method comprises the following steps that a handle of a cylindrical pneumatic measuring head is held by a hand, a cylindrical plug gauge part of the cylindrical pneumatic measuring head is placed into an inner hole of a part, the lower end face of the cylindrical plug gauge is enabled to be flat against the upper plane of a positioning disc at the top end of a telescopic rod on a servo electric push rod, a microswitch on the positioning disc is pressed and contacted by the lower end face of the cylindrical plug gauge to act, after an MCU controller detects an action signal of the microswitch, the MCU controller starts a go-no go gauge simulation detection mode to drive an electronic pneumatic measuring instrument to start detecting the size of the inner hole of the part, the telescopic rod of the servo electric push rod descends at a certain measuring speed under the condition that the size is not found to be out to be over-poor, and the cylindrical plug gauge synchronously moves downwards along with the descending of the telescopic rod to perform dynamic measurement;

(4) and (3) judging a detection result: if the dimensional over-tolerance is not found in the whole detection range of the upper and lower positions of the inner hole of the part, the cylindrical plug gauge smoothly moves and passes from top to bottom in the whole detection range of the upper and lower positions of the inner hole of the part, and the size of the inner hole of the part is judged to be qualified; if the cylindrical plug gauge is moved downwards in the inner hole of the part for measurement, once the size is out of tolerance, the MCU controller immediately controls the telescopic rod of the servo electric push rod to stop moving, the cylindrical plug gauge is blocked by the telescopic rod and cannot move downwards, the unqualified size of the inner hole of the part is judged, and an alarm is given out.

In the utility model, the MCU controller is provided with two detection modes, the two detection modes comprise a whole-course detection alarm and recording mode and a go-no go gauge simulation detection mode, and the two detection modes can be used selectively or in combination; when the measurement is carried out in the whole-process detection alarm and recording mode, if the size of the inner hole of the part exceeds the tolerance at a certain position, an alarm is sent out, and meanwhile, the telescopic rod of the servo electric push rod continues to move downwards, so that the cylindrical pneumatic measuring head can continue to detect; after the detection is finished, the MCU controller records the inner diameter size of each position in the detection process, then a curve chart of the upper and lower positions of the part and the inner diameter size of the corresponding upper and lower positions is formed, and the curve chart is output through printing equipment to form a part inner diameter size detection report.

The utility model has the advantages that:

first, the utility model discloses a workstation is repaired to part, constructor need not to squat for a long time or bow when repairing the operation, has reduced the intensity of labour of repairing the operation.

Second, the utility model discloses a workstation is repaired to part, instrument can concentrate the fixed point and place, has improved the efficiency that production was prepared, has improved the 5S environment of production site.

Thirdly, the workbench for repairing the parts is provided with the pneumatic type go-no go gauge unit, so that the traditional cylindrical plug gauge can be simulated to rapidly detect the inner diameter size of the parts, and the detection precision and the detection stability are improved compared with a general measuring tool; and because the cylindrical plug gauge in the pneumatic type go-no go gauge unit is in large clearance fit with the inner hole of the part completely, the defect that the measurement precision is influenced and even the surface of the inner hole of the part is damaged due to friction and abrasion easily caused by the conventional cylindrical plug gauge can be overcome.

Fourthly, the part repairing workbench of the utility model is provided with a go-no go gauge simulation detection mode and a whole-process detection alarm and recording mode, and the go-no go gauge simulation detection mode is convenient and intuitive to operate and has high efficiency; the whole-process detection, alarm and recording mode can output the inner diameter size of each axial position of the inner hole of the part, and the curve chart of the inner diameter size can comprehensively know the inner diameter size condition of each position, so that the subsequent repair operation of the part is greatly facilitated.

Drawings

FIG. 1 is a schematic structural view of a part repair station according to the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a schematic illustration of a pneumatic go/no-go gauge unit positioned at a repair station of the part repair station of FIG. 1 to effect rapid measurement of the internal bore of a part.

In the figure: 1. the device comprises a table board main body, 2, a stainless steel cover plate, 3, a workbench upright post, 4, a tool cabinet, 5, a drawer type tray, 6, a double-opening or single-opening cabinet door, 7, a cabinet door handle lock pin accessory, 8, a compressed air pipeline, 9, a quick connector, 10, (ground) a compressed air supply pipe, 11, surrounding edge stainless steel angle iron, 12, a pneumatic type go-no-go gauge unit, 13, an electronic pneumatic measuring instrument, 14, a pneumatic pipeline, 15, a cylindrical pneumatic measuring head, 16, a servo electric push rod, 17, a telescopic rod, 18, a microswitch, 19, a positioning disc, 20, a counter bore, 21, a micro contact, 22, a cylindrical plug gauge, 23, a handle, 24, an air channel distribution cavity, 25, an air outlet, 26, an air channel, 27, a correction comparison ring, 28, a permanent ring, 33, a detection station, 34, an equal-height block, 35 and parts.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1:

fig. 1 to 4 show an embodiment of a part repairing workbench according to the present invention, which includes a table top main body 1, a stainless steel cladding plate 2 laid above the table top main body 1 to form a repairing workbench table top, and a workbench upright post 3 disposed below the table top main body 1, wherein a plurality of tool cabinets 4 are sequentially and adjacently disposed below the table top main body 1; at least one tool cabinet 4 in the tool cabinets 4 is of a drawer type tray 5 structure; except the tool cabinet 4 with the drawer type tray 5 structure, the other tool cabinets 4 adopt a double-opening type or single-opening type cabinet door 6 structure, and a cabinet door handle lock pin accessory 7 is arranged on the double-opening type or single-opening type cabinet door 6 structure; and a compressed air pipeline 8 is arranged at the circumferential side position of the table top main body 1, and a plurality of quick connectors 9 are arranged on the compressed air pipeline 8 at intervals.

As a preferable mode of the present embodiment, the parts repair workbench is installed on the ground of a factory repair shop, a compressed air supply pipe 10 is buried in the ground of the repair shop, the compressed air supply pipe 10 is connected to a compressed air source of a factory, and the compressed air supply pipe 10 is connected to the compressed air pipeline 8 through a pipeline.

In order to facilitate the rapid and accurate measurement of the inner hole of the part, the scheme of further improvement is as follows: a plurality of repair stations are sequentially arranged on the table top of the repair workbench, each repair station comprises a detection station 33, the detection station 33 is provided with a pneumatic go-no-go gauge unit 12 for rapidly measuring the inner hole of the part 35, the pneumatic go-no go gauge unit 12 comprises an MCU controller, an electronic pneumatic measuring instrument 13 connected with the MCU controller, a cylindrical pneumatic measuring head 15 connected with the electronic pneumatic measuring instrument 13 through a pneumatic pipeline 14, a servo electric push rod 16 arranged at the back position of the repair workbench and connected with the MCU controller, the telescopic rod 17 of the servo electric push rod 16 is vertically arranged above the table top of the repair workbench after upwards penetrating through the repair workbench, the top end of the telescopic rod 17 of the servo electric push rod 16 is also provided with a microswitch 18, and the microswitch 18 is connected with the MCU controller.

In order to improve the automation degree of measurement, a positioning disc 19 is arranged at the top end of a telescopic rod 17 of the servo electric push rod 16, a counter bore 20 is arranged in the middle of the positioning disc 19, the micro switch 18 is installed in the counter bore 20 of the positioning disc 19, and a micro contact 21 of the micro switch 18 is higher than the upper plane of the positioning disc 19.

In this embodiment, the pneumatic gauge head 15 of cylinder type includes when examining measuring with part 35 hole clearance fit's cylinder plug gauge 22, connection the handle 23 of cylinder plug gauge 22, set up and be in the inside gas circuit distribution chamber 24 of cylinder plug gauge 22 sets up along a plurality of quantity intercommunications that circumference distributes on the excircle of cylinder plug gauge 22 the venthole 25 of gas circuit distribution chamber 24, be provided with the intercommunication on the handle 23 the air flue 26 of gas circuit distribution chamber 24, air flue 26 passes through pneumatic tube 14 and connects electronic type pneumatic measuring instrument 13.

Different from the structure of a conventional cylindrical plug gauge with a through end and a stop end, the cylindrical plug gauge 22 and the inner hole of the part 35 are in complete large clearance fit, whether the inner diameter size is qualified or not is dynamically detected by a pneumatic measurement method, the cylindrical plug gauge 22 is clamped by the telescopic rod 17 of the servo electric push rod 16 when moving down to the position with unqualified size detection and cannot move down continuously, and the telescopic rod 17 of the servo electric push rod 16 can move down and give way gradually only when the size detection is qualified, so that the cylindrical plug gauge 22 can pass through the inner hole of the part 35 smoothly.

During measurement, an operator holds the handle 23 of the cylindrical plug gauge 22, inserts the cylindrical plug gauge 22 into an inner hole of the part 35, simulates a conventional cylindrical plug gauge detection method to detect, presses the microswitch 18 at the top of the telescopic rod 17 on the servo electric push rod 16 by the cylindrical plug gauge 22, enables the telescopic rod 17 of the servo electric push rod 16 to move downwards at a certain detection speed, and indicates that the inner diameter of the part 35 is qualified when the cylindrical plug gauge 22 can smoothly move downwards in the inner hole of the part 35; if the telescopic rod 17 of the servo electric push rod 16 stops moving downwards in the detection process, the cylindrical plug gauge 22 is blocked by the telescopic rod 17 and cannot pass through the inner hole of the part 35 smoothly, and the inner diameter of the part 35 is unqualified.

The action of the telescopic rod 17 of the servo electric push rod 16 is controlled by the MCU controller, the MCU controller obtains the dynamic size of the inner diameter of the part through the electronic pneumatic measuring instrument 13 in the measuring process, when the size of the inner diameter of the part is found to be out of tolerance, the telescopic rod 17 of the servo electric push rod 16 stops to block the downward movement of the cylindrical plug gauge 22, namely the cylindrical plug gauge 22 is clamped, and therefore an operator can know that the inner diameter of the part 35 is unqualified in detection. If the dynamic size of the inner diameter of the part obtained by the electronic air gauge 13 is always qualified in the detection process, the telescopic rod 17 of the servo electric push rod 16 moves downwards to the set limit position according to the set measurement speed, so that the cylindrical plug gauge 22 smoothly passes through the inner hole of the part 35, and an operator can know that the detection result of the inner diameter of the part 35 is qualified.

In this embodiment, the pneumatic open-close gauge unit 12 uses air from the compressed air line 8, and the compressed air line 8 is provided with an automatic pressure control valve.

In order to improve the accuracy of measuring the inner hole of the part 35, the electronic air gauge 13 is further provided with a correction comparison ring 27 for correcting the accuracy of the cylindrical pneumatic measuring head 15, and the correction comparison ring 27 is used for correcting the accuracy of the cylindrical pneumatic measuring head 15 in advance before measurement.

As a further modification of this embodiment, the upper end surface of the positioning plate 19 is provided with a permanent magnet ring 28 for magnetically attracting the lower end surface of the cylindrical pneumatic probe 15 during measurement.

The lower end face of the cylindrical pneumatic measuring head 15 is magnetically attracted by the permanent magnet ring 28, so that an operator does not need to hold the handle 23 all the time in the detection process, and automatic measurement is realized.

Example 2:

a workbench using method of the part repairing workbench in the embodiment 1 comprises the following steps of using a pneumatic pass-stop gauge unit 12 on a repairing station to rapidly detect the inner hole of a part 35:

(1) and (3) correcting before measurement: according to the part 35 to be detected, selecting a correction comparison ring 27 with the corresponding inner diameter size of the same specification, inserting the cylindrical pneumatic measuring head 15 into an inner hole of the correction comparison ring 27, and performing precision correction on the cylindrical pneumatic measuring head 15;

(2) and (3) mounting parts: placing a part to be detected at a detection position of a repair station, placing a telescopic rod 17 of a servo electric push rod 16 at the approximate center of an inner hole of the part, and padding an equal-height block 24 below the part if necessary; adjusting the height of the top end of the telescopic rod 17 on the servo electric push rod 16 to the height corresponding to the initial measurement position, and setting the telescopic range of the telescopic rod 17 on the servo electric push rod 16 through the MCU controller to enable the telescopic range to correspond to the upper and lower position detection range of the inner hole of the part 35;

(3) measuring the inner diameter of the part: the handle 23 of the cylindrical pneumatic measuring head 15 is held by a hand, the cylindrical plug gauge 22 of the cylindrical pneumatic measuring head 15 is partially placed in an inner hole of a part, the lower end face of the cylindrical plug gauge 22 is made to be flat against the upper plane of a positioning disc 19 at the top end of a telescopic rod 17 on the servo electric push rod 16, a microswitch 18 on the positioning disc 19 is pressed and contacted by the lower end face of the cylindrical plug gauge 22 to act, after detecting an action signal of the microswitch 18, an MCU controller starts a go-no-go gauge simulation detection mode to drive an electronic pneumatic measuring instrument 13 to start detecting the size of the inner hole of the part 35, the telescopic rod 17 of the servo electric push rod 16 is lowered at a certain measuring speed under the condition that the size is not out of tolerance, and the cylindrical plug gauge 22 synchronously moves downwards along with the lowering of the telescopic rod 17 to perform dynamic measurement;

(4) and (3) judging a detection result: if the dimensional out-of-tolerance is not found in the whole detection range of the upper and lower positions of the inner hole of the part 35, the cylindrical plug gauge 22 smoothly moves and passes from top to bottom in the whole detection range of the upper and lower positions of the inner hole of the part, and the size of the inner hole of the part is judged to be qualified; if the size of the cylindrical plug gauge 22 is out of tolerance once the cylindrical plug gauge 22 moves downwards in the inner hole of the part to be measured, the MCU controller immediately controls the telescopic rod 17 of the servo electric push rod 16 to stop moving, the cylindrical plug gauge 22 is blocked by the telescopic rod 17 and cannot move downwards any more, the size of the inner hole of the part is judged to be unqualified, and an alarm is given out.

In this embodiment, the MCU controller is provided with two detection modes, where the two detection modes include a full-process detection alarm and recording mode and a go/no go gauge simulation detection mode, and the two detection modes can be used selectively or in combination; when the measurement is carried out in the whole-process detection alarm and recording mode, if the size of the inner hole of the part exceeds a certain position, an alarm is sent out, and meanwhile, the telescopic rod 17 of the servo electric push rod 16 continues to move downwards, so that the cylindrical pneumatic measuring head can continue to detect; after the detection is finished, the MCU controller records the inner diameter size of each position in the detection process, then a curve chart of the upper and lower positions of the part and the inner diameter size of the corresponding upper and lower positions is formed, and the curve chart is output through printing equipment to form a part inner diameter size detection report.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A part repair workbench is characterized by comprising a workbench surface main body, a stainless steel shroud plate and a workbench stand column, wherein the stainless steel shroud plate is laid above the workbench surface main body to form a repair workbench surface, the workbench stand column is arranged below the workbench surface main body, and a plurality of tool cabinets are sequentially and adjacently arranged below the workbench surface main body; at least one tool cabinet in the tool cabinets is of a drawer type tray structure; except the tool cabinet with the drawer type tray structure, other tool cabinets adopt a double-opening type or single-opening type cabinet door structure, and a cabinet door handle lock pin accessory is arranged on the double-opening type or single-opening type cabinet door structure; and a compressed air pipeline is arranged along the circumferential side surface of the table top main body, and a plurality of quick connectors are arranged on the compressed air pipeline at intervals.

2. The parts repair bench of claim 1, wherein the parts repair bench is installed on a floor of a plant repair shop, a compressed air supply pipe is buried in the floor of the repair shop, the compressed air supply pipe is connected to a compressed air source of a plant, and the compressed air supply pipe is connected to the compressed air pipe through a pipe.

3. A repair bench as claimed in claim 1, wherein a number of repair stations are arranged in sequence on the repair bench, the repair station comprises a detection station, a pneumatic go-no go gauge unit for quickly measuring the inner hole of the part is arranged on the detection station, the pneumatic go-no go gauge unit comprises an MCU controller, an electronic pneumatic measuring instrument connected with the MCU controller, a cylindrical pneumatic measuring head connected with the electronic pneumatic measuring instrument through a pneumatic pipeline, and a servo electric push rod which is arranged at the back position of the repair workbench and connected with the MCU controller, the telescopic rod of the servo electric push rod penetrates the repairing workbench upwards and then is vertically arranged above the table top of the repairing workbench, the top end of the telescopic rod of the servo electric push rod is further provided with a microswitch, and the microswitch is connected with the MCU controller.

4. The part repairing workbench according to claim 3, wherein a positioning plate is arranged at the top end of the telescopic rod of the servo electric push rod, a counter bore is arranged in the middle of the positioning plate, the micro switch is arranged in the counter bore of the positioning plate, and the micro contact of the micro switch is higher than the upper plane of the positioning plate.

5. The part repairing workbench according to claim 3, wherein said cylindrical pneumatic measuring head comprises a cylindrical plug gauge in clearance fit with the inner hole of the part during detection, a handle connected with said cylindrical plug gauge, a gas path distribution chamber arranged inside said cylindrical plug gauge, a plurality of gas outlets circumferentially distributed on the outer circle of said cylindrical plug gauge and connected with said gas path distribution chamber, said handle being provided with a gas path communicated with said gas path distribution chamber, said gas path being connected with said electronic pneumatic measuring instrument through a pneumatic pipeline.

6. A repair bench according to claim 3, wherein the pneumatic open-and-close gauge unit uses a gas source from the compressed air line, on which an automatic pressure control valve is arranged.

7. The parts repairing table according to claim 3, wherein the electronic air gauge is further provided with a calibration comparison ring for calibrating the accuracy of the cylindrical air gauge head, and the calibration comparison ring is used to calibrate the accuracy of the cylindrical air gauge head in advance before measurement.

8. A parts repairing table according to claim 4, wherein the upper end surface of said positioning plate is provided with a permanent magnet ring for magnetically attracting the lower end surface of said cylindrical pneumatic probe during measurement.