High-pressure oil pipe wrench intelligent rack with triple mistake proofing function

Abstract

The invention provides a high-pressure oil pipe wrench intelligent rack with triple mistake proofing, which is connected with a station system of a high-pressure oil pipe mounting station and comprises a mounting bottom plate and a wrench support, the wrench support is used for placing different types of wrenches, and the wrench support is further provided with an indicator light and a proximity switch. The device is used for prompting and detecting the taking of the mounting wrench matched with the high-pressure oil pipe. When the wrenches are placed on the wrong wrench supports on the intelligent rack, the wrenches tilt due to mismatching of the appearances, and first mistake proofing is achieved in the aspect of mechanical structure design; in addition, the indicator lamps corresponding to the wrenches on the intelligent material rack are turned on to remind the staff of the wrenches needing to be picked up, and secondary mistake proofing is achieved; and finally, after a worker takes the wrench, the third mistake proofing is realized by judging whether the wrench is correctly taken or not through a proximity switch, so that the purpose of correctly taking and clicking the wrench is realized, the potential quality hazard caused by mistakenly taking and mounting the wrench is avoided, and the intelligentization of a production line, the production efficiency and the quality stability are improved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent automobile manufacturing, and in particular to an intelligent rack for high-pressure oil pipe wrenches with triple error prevention. Background Art

[0002] The high-pressure oil pipe is a core component of the engine oil circuit. One end is connected to the high-pressure oil rail through a nut, and the other end is connected to the injector through a nut. During installation, use a click wrench to tighten the nut to ensure a firm connection and prevent interruption and oil leakage in the oil circuit system. If the torque of the click wrench is too large, the nut of the high-pressure oil pipe may be squeezed and deformed during the tightening process, resulting in an abnormal gap between the nut and the injector, which may cause the nut to fall off, and ultimately lead to interruption and oil leakage in the oil circuit system. In severe cases, it may cause engine failure and cause major safety hazards.

[0003] In addition, with the introduction of the new 2.3L model on the diesel engine assembly line, the installation torque requirements for the 10 nuts of the 5 high-pressure oil pipes of the new model are smaller than those of the traditional model. The appearance of the high-pressure oil pipes of the new model and the traditional model is very similar, and due to the production rhythm requirements and process layout of the assembly line, all high-pressure oil pipes must be tightened at the same station. In a high-beat, high-hour, high-intensity, and noisy working environment, employees are prone to misjudge the model and choose the wrong wrench. If the high-pressure oil pipes of the new model are installed with the click wrench used for the traditional high-pressure oil pipes, the nuts will be overstressed, causing the nuts on the injector side to come out and spray fuel during the engine hot test.

[0004] The wrench rack currently in use is a stainless steel flat plate. Although the wrench torque range is posted, there is no intelligent management or error prevention mechanism. Employees can only independently determine the high-pressure oil pipe model based on experience and select tools from the rack. If the wrong wrench is taken, the problem will only be discovered during the engine hot test or after-sales stage, which poses a huge quality risk. In addition, due to the large number of production line models and frequent switching, the use of existing wrench racks also has the disadvantage of time-consuming manual confirmation of model information and reduced work rhythm. Therefore, it is necessary to develop an intelligent rack for high-pressure oil pipe wrenches with multiple error prevention functions. Summary of the invention

[0005] In view of the defects in the prior art, the purpose of the present invention is to provide a high-pressure oil pipe wrench intelligent material rack with triple error prevention, which can help employees to correctly take and place the installation wrench when installing the engine high-pressure oil pipe, avoiding safety hazards during installation.

[0006] In order to achieve the above technical effects, the present invention adopts the following technical solutions:

[0007] A high-pressure oil pipe wrench intelligent material rack with triple error prevention is arranged at a high-pressure oil pipe installation station, comprising an installation base plate and a wrench bracket, wherein the wrench bracket is arranged on the installation base plate and comprises a first bracket and a second bracket, wherein the first bracket is used to place a first wrench, and the second bracket is used to place a second wrench;

[0008] The first bracket and the second bracket each comprise an upper cover plate with a groove, a tail bracket, a vertically arranged contour plate and a component mounting plate supported by the plate, wherein the upper cover plate is arranged on the component mounting plate; the tail bracket and the contour plate are both fixedly mounted on the mounting base plate;

[0009] The element mounting plates of the first bracket and the second bracket are both provided with a proximity switch and an indicator light, wherein the proximity switch is used to detect the picking up or putting down of the first wrench and the second wrench, and the indicator light is used to indicate the wrench that matches the high-pressure oil pipe installation at the current workstation; the proximity switch and the indicator light are connected to the workstation system of the high-pressure oil pipe installation workstation through a wire;

[0010] The tail brackets of the first bracket and the second bracket are at different distances from the side of the mounting base plate, and the tail support arc radii of the two brackets are also different, so as to respectively place the tails of the first wrench and the second wrench of different lengths;

[0011] If the first wrench and the second wrench are misplaced, the longer wrench will tilt up on the wrench bracket because its center of gravity is close to the tail, and the short wrench will tilt up on the wrench bracket because of its insufficient length, thus achieving a first level of error prevention;

[0012] When the engine arrives at the high-pressure oil pipe installation station, the indicator light on the wrench bracket where the wrench matching the engine is placed lights up, achieving the second level of error prevention;

[0013] The employee takes the corresponding wrench, and the proximity switch determines whether the wrench is taken correctly according to the prompt of the indicator light. If it is taken correctly, the engine can be released normally after the employee completes the operation; otherwise, the rack makes a roaring sound, and the employee needs to put the wrong wrench back into the rack and take the correct wrench again to eliminate the roaring sound, thus achieving the third level of error prevention.

[0014] Optionally, the mounting base plate is further welded with two circular rings for placing marker pens and sleeves at the workstations.

[0015] Optionally, the mounting base plate is provided with an integrated wiring channel including a wire outlet hole and a cable tie fixing structure.

[0016] Optionally, the wires of the proximity switch and the indicator light are respectively passed through the wire outlet holes on the mounting base plate below them, wrapped together, fixed on the high-pressure oil pipe installation station, and connected to the station system.

[0017] Optionally, the mounting base plate is fixed to the high-pressure oil pipe installation station via a right-angle fixing plate.

[0018] Optionally, the high-pressure oil pipe installation workstation system has a PLC error-proofing formula preset according to different wrench information and engine installation information. When the engine arrives at the high-pressure oil pipe installation workstation, the indicator light on the corresponding wrench bracket lights up according to the error-proofing formula in the workstation system.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The intelligent rack for high-pressure oil pipe wrenches with triple error prevention provided by the present invention has a simple structure, low cost, stable performance, and accurate judgment. It has a triple error prevention mechanism from placing the wrench to taking it out, and is easy to use. It reduces the time for manual confirmation of model information in a high-beat, high-intensity, high-working-hour, and noisy working environment, improves the intelligence of the production line and work efficiency, avoids the safety hazards caused by employees misjudging the model and selecting the wrong wrench, and ensures safe and reliable on-site operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0022] Figure 1 It is a structural schematic diagram of the intelligent material rack for high-pressure oil pipe wrenches with triple error prevention described in the embodiment.

[0023] The figure shows:

[0024] 1-First upper cover

[0025] 2-Indicator light

[0026] 3-First component mounting plate

[0027] 4-First level plate

[0028] 5- Install the base plate

[0029] 6-Proximity switch

[0030] 7-Right angle fixing plate

[0031] 8-First tail bracket

[0032] 9-Second tail bracket

[0033] 10-Second Elevation Plate

[0034] 11-Second component mounting plate

[0035] 12- Second upper cover

[0036] 13-First bolt

[0037] 14-Second bolt DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0040] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. In addition, all directional indications in this application (such as up, down, left, right, front, back, bottom...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the descriptions involving "first", "second", etc. in the application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.

[0041] like Figure 1 As shown, this embodiment provides a high-pressure oil pipe wrench intelligent material rack with triple error prevention, including a wrench bracket and a mounting base plate (5), wherein the wrench bracket includes a first bracket and a second bracket, the first bracket is used to place the first wrench, and the second bracket is used to place the second wrench. In this embodiment, the first wrench is longer than the second wrench. The first bracket and the second bracket are both arranged on the mounting base plate (5), and the mounting base plate (5) is fixedly arranged on a right angle fixing plate (7) by a second bolt (14), and the right angle fixing plate (7) is fixed on the station bracket.

[0042] The first bracket comprises a first upper cover plate (1), a first component mounting plate (3), two first contour plates (4) and a first tail bracket (8). The first upper cover plate (1) is arranged on the first component mounting plate (3), the first component mounting plate (3) is arranged on two vertically placed first contour plates (4), the first contour plates (4) are fixedly arranged on the mounting base plate (5) by means of first bolts (13), and the first tail bracket (8) is fixedly arranged on the mounting base plate (5) by means of first bolts (13). The second bracket comprises a second upper cover plate (12), a second component mounting plate (11), two second contour plates (10) and a second tail bracket (9). The second upper cover plate (12) is arranged on the second component mounting plate (11), the second component mounting plate (11) is arranged on two second equal-height plates (10) placed vertically, the second equal-height plates (10) are fixedly arranged on the mounting base plate (5) by means of first bolts (13), and the second tail bracket (9) is fixedly arranged on the mounting base plate (5) by means of first bolts (13). In addition, an indicator light (2) and a proximity switch (6) are arranged on both the first bracket and the second bracket.

[0043] The first upper cover plate (1) is provided with 6 stepped through holes, 2 through holes, 1 stepped surface and 1 open groove, the stepped through holes are used to allow the first bolt (13) to pass through so as to be fixed on the mounting base plate (5), the stepped surface and the open groove are used to place the first wrench, and the 2 through holes are used to place the indicator light (2) and the proximity switch (6) respectively. The first component mounting plate (3) is provided with 6 threaded holes and 2 through holes, and the 2 through holes are used to install and fix the indicator light (2) and the proximity switch (6) respectively; the first tail bracket (8) is provided with a supporting arc for placing the tail of the first wrench.

[0044] The first upper cover plate (1) and the second upper cover plate (12) have the same structure except for the length; the first component mounting plate (3) and the second component mounting plate (11) have the same structure except for the length; the first equal height plate (4) and the second equal height plate (10) have the same structure except for the length; the first tail bracket (8) and the second tail bracket (9) have the same structure except for the top support arc radius.

[0045] A proximity switch (6) and an indicator light (2) are provided on both the first component mounting plate (3) and the second component mounting plate (11). The proximity switch (6) is used to detect whether the first wrench and the second wrench are picked up or put down, and the indicator light (2) is used to indicate the wrench that matches the high-pressure oil pipe installation at the current workstation. The mounting base plate (5) is provided with an integrated wiring channel, including a wire outlet hole and a cable tie fixing structure. The wires of the proximity switch (6) and the indicator light (2) are respectively passed through the wire outlet holes of the mounting base plate (5) located below them, are wrapped together, fixed on the workstation bracket, and connected to the workstation system for high-pressure oil pipe installation. The workstation system has a PLC error-proofing formula preset according to different wrench information and engine installation information. When the engine arrives at the high-pressure oil pipe installation workstation, the indicator light (2) on the corresponding wrench bracket can light up according to the error-proofing formula indication in the workstation system.

[0046] In addition, two circular rings are welded to the mounting base plate (5) for placing the marking pen and sleeve of the workstation.

[0047] There are two types of click wrenches installed on the high-pressure oil pipe at this workstation. According to the different shapes and weights of the wrenches, the first tail bracket (8) and the second tail bracket (9) are at different distances from the right side of the installation base plate (5), and the tail support arc radii of the first tail bracket (8) and the second tail bracket (9) are also different; if the two wrenches are misplaced, the first wrench (long) will tilt up because the center of gravity is close to the tail, and the second wrench (short) will tilt up because the length is not enough; according to the different lengths and centers of gravity of the click wrenches, the structural design of the above-mentioned intelligent material rack ensures that the wrenches will not be misplaced. The mechanical structure design prevents the two wrenches from being taken incorrectly, and realizes the first level of error prevention.

[0048] When the engine assembly line is working, an RFID disk has been installed on the engine tray. After the engine is online, the engine information will be recorded and uploaded to the workstation system. When the engine arrives at the high-pressure oil pipe installation station, the station barcode reader reads the engine information on the disk, and combines the qualified release of the previous process, triggers the wrench intelligent error-proofing selection rack according to the PLC error-proofing formula compiled in the workstation system, and the indicator light of the corresponding wrench lights up green, prompting the employee to pick up the wrench, realizing the second level of error-proofing.

[0049] The employee takes the corresponding wrench, and the proximity switch (6) determines whether the wrench is taken correctly. If it is taken correctly, the engine can be released normally after the employee completes the operation; otherwise, the smart rack emits a roaring sound, and the employee needs to put the wrong wrench back into the rack and take the correct wrench again to eliminate the roaring sound; the engine cannot be automatically released before the error is eliminated, realizing the third level of error prevention and ultimately achieving the purpose of correctly taking the click wrench.

[0050] The components on the intelligent rack for high-pressure oil pipe wrenches with triple error prevention provided in this embodiment are processed and assembled from cold-rolled steel Q235 and black nylon materials. The entire rack has low cost, simple structure and stable performance. In a high-beat, high-intensity, high-working-hour and noisy working environment, it can accurately provide employees with wrenches that match the installation of the engine's high-pressure oil tank, thereby improving installation efficiency and production line intelligence, and eliminating safety and quality risks caused by employees misjudging high-pressure oil pipe models with similar appearance and structure and choosing the wrong wrench.

[0051] The above describes the specific embodiments of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention.

Claims

1. A high-pressure oil pipe wrench intelligent rack with triple error prevention, characterized in that: It is arranged at the high-pressure oil pipe installation station, including an installation base plate and a wrench bracket, wherein the wrench bracket is arranged on the installation base plate, and includes a first bracket and a second bracket, wherein the first bracket is used to place a first wrench, and the second bracket is used to place a second wrench; The first bracket and the second bracket each comprise an upper cover plate with a groove, a tail bracket, a vertically arranged contour plate and a component mounting plate supported by the plate, wherein the upper cover plate is arranged on the component mounting plate; the tail bracket and the contour plate are both fixedly mounted on the mounting base plate; The element mounting plates of the first bracket and the second bracket are both provided with a proximity switch and an indicator light, wherein the proximity switch is used to detect the picking up or putting down of the first wrench and the second wrench, and the indicator light is used to indicate the wrench that matches the high-pressure oil pipe installation at the current workstation; the proximity switch and the indicator light are connected to the workstation system of the high-pressure oil pipe installation workstation through a wire; The tail brackets of the first bracket and the second bracket are at different distances from the side of the mounting base plate, and the tail support arc radii of the two brackets are also different, so as to respectively place the tails of the first wrench and the second wrench of different lengths; If the first wrench and the second wrench are misplaced, the longer wrench will tilt up on the wrench bracket because its center of gravity is close to the tail, and the short wrench will tilt up on the wrench bracket because of its insufficient length, thus achieving a first level of error prevention; When the engine arrives at the high-pressure oil pipe installation station, the indicator light on the wrench bracket where the wrench matching the engine is placed lights up, achieving the second level of error prevention; The employee takes the corresponding wrench, and the proximity switch determines whether the wrench is taken correctly according to the prompt of the indicator light. If it is taken correctly, the engine can be released normally after the employee completes the operation; otherwise, the rack makes a roaring sound, and the employee needs to put the wrong wrench back into the rack and take the correct wrench again to eliminate the roaring sound, thus achieving the third level of error prevention.

2. The intelligent rack for high-pressure oil pipe wrenches with triple error prevention according to claim 1 is characterized in that: The mounting base plate is also welded with two circular rings for placing marking pens and sleeves of the workstations.

3. The intelligent rack for high-pressure oil pipe wrenches with triple error prevention according to claim 1 is characterized in that: The installation base plate is provided with an integrated wiring channel, including a wire outlet hole and a cable tie fixing structure.

4. The intelligent rack for high-pressure oil pipe wrenches with triple error prevention according to claim 3 is characterized in that: The wires of the proximity switch and the indicator light are respectively passed through the wire passing holes on the mounting bottom plate below them, are bundled together, fixed on the high-pressure oil pipe installation station, and connected to the station system.

5. The intelligent rack for high-pressure oil pipe wrenches with triple error prevention according to claim 1 is characterized in that: The installation base plate is fixed on the high-pressure oil pipe installation station through a right-angle fixing plate.

6. The intelligent rack for high-pressure oil pipe wrenches with triple error prevention according to claim 1 is characterized in that: The high-pressure oil pipe installation station system has a PLC error-proofing formula preset according to different wrench information and engine installation information. When the engine arrives at the high-pressure oil pipe installation station, the indicator light on the corresponding wrench bracket lights up according to the error-proofing formula in the station system.

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