CN219358622U - High-pressure oil pump bolt tightening machine - Google Patents

Abstract

The utility model relates to the technical field of engine production lines, in particular to a high-pressure oil pump bolt tightening machine, which comprises: the engine base is provided with a tray for bearing an engine; the disc shaft mechanism is arranged on one side of the base and is used for being in butt joint with a cam shaft of the engine and adjusting the angle of the cam shaft; the visual identification mechanism is arranged on one side of the machine base and is used for shooting images of the cam shaft and providing angle information of the cam shaft required to be adjusted for the disc shaft mechanism; and the tightening mechanism is arranged on one side of the machine base, and is provided with two tightening shafts for synchronously tightening the high-pressure oil pump bolts after the camshaft is adjusted in place. This high-pressure oil pump bolt tightening machine can accomplish full-automatic bolt tightening operation, carries out angle adjustment to the camshaft is automatic through visual identification mechanism to best angle is screwed up high-pressure oil pump bolt, has improved the efficiency that the bolt was screwed up, has shortened the time of screwing up the bolt, has reduced the recruitment cost.

Description

High-pressure oil pump bolt tightening machine

Technical Field

The utility model relates to the technical field of engine production lines, in particular to a high-pressure oil pump bolt tightening machine.

Background

At present, aiming at high-pressure oil pump bolts, a handheld tightening gun is mostly utilized to tighten one by one, or two tightening shafts are utilized to conduct deflection tightening, the tightening mode is low in efficiency, synchronous tightening cannot be achieved in the tightening process, and uneven stress of the bolts is easily caused. And the manual work is screwed up high-pressure oil pump bolt, has increased the cost of labor, and manual work is screwed up in addition and is unable to guarantee and is screwed up the quality, often appears the moment of torsion insufficient and the condition of not screwing up.

Disclosure of Invention

Accordingly, it is necessary to provide a high-pressure oil pump bolt tightening machine for solving the problems of low efficiency and the like caused by manual operation required for tightening the high-pressure oil pump bolt.

The above purpose is achieved by the following technical scheme:

a high pressure oil pump bolt tightening machine comprising:

the engine base is provided with a tray for bearing an engine;

the disc shaft mechanism is arranged on one side of the base and is used for being in butt joint with a cam shaft of the engine and adjusting the angle of the cam shaft;

the visual identification mechanism is arranged on one side of the machine base and is used for shooting images of the cam shaft and providing angle information of the cam shaft required to be adjusted for the disc shaft mechanism; and

the tightening mechanism is arranged on one side of the machine base and is provided with two tightening shafts for synchronously tightening the high-pressure oil pump bolts after the camshaft is adjusted in place.

In one embodiment, the hub mechanism includes:

the first bracket is arranged on one side of the stand;

the X-axis track is arranged on the first bracket;

a Y-axis rail movably disposed on the X-axis rail with respect to the X-axis rail;

the shaft end sleeve is movably arranged on the Y-axis track relative to the Y-axis track and is used for being in butt joint with the cam shaft; and

the first driving source is in transmission connection with the shaft end sleeve and is used for driving the shaft end sleeve to rotate so as to adjust the angle of the cam shaft.

In one embodiment, the disc shaft mechanism further comprises:

the first sliding seat is arranged on the X-axis track in a sliding manner;

the first cylinder is arranged on the first bracket and is in driving connection with the first sliding seat to drive the first sliding seat to reciprocate on the X-axis track;

the second sliding seat is arranged on the Y-axis track in a sliding manner, and the shaft end sleeve is arranged on the second sliding seat; and

the second air cylinder is arranged on the first sliding seat and is in driving connection with the second sliding seat to drive the second sliding seat to reciprocate on the Y-axis track.

In one embodiment, the tightening mechanism includes:

the second bracket is arranged on one side of the stand;

the mounting seat is slidably arranged on the second bracket, the two tightening shafts are arranged on the mounting seat, and the end part of each tightening shaft is provided with a tightening sleeve which is used for being matched with the high-pressure oil pump bolt; and

the second driving source is arranged on the second bracket and is in driving connection with the mounting seat, and the second driving source is used for driving the mounting seat to move towards one side of the engine so as to enable the tightening sleeve to be in butt joint with the high-pressure oil pump bolt.

In one embodiment, the tightening shaft is an atlas tightening shaft.

In one embodiment, the visual recognition mechanism comprises a support bracket, and a camera and a translation cylinder which are arranged on the support bracket, wherein the support bracket is arranged on one side of the machine base, and the translation cylinder is connected with the camera to drive the camera to horizontally move.

In one embodiment, the lifting mechanism is arranged between the machine base and the tray, and the lifting mechanism is used for driving the tray to lift or descend relative to the machine base.

In one embodiment, the lifting mechanism comprises:

the lifting support is arranged on the base;

the lifting cylinder is provided with a cylinder body and a piston rod, and the cylinder body of the lifting cylinder is connected to the lifting support; and

the lifting platform is connected with a piston rod of the lifting cylinder and is used for being connected with the tray in a positioning mode so as to drive the tray to lift or descend relative to the base under the driving of the lifting cylinder.

In one embodiment, the engine further comprises a compressing mechanism arranged above the engine base, and the compressing mechanism is used for compressing and positioning the engine on the tray.

In one embodiment, the hold-down mechanism comprises:

the supporting cross beam is arranged above the machine base;

the compressing cylinder is provided with a cylinder body and a piston rod, and the cylinder body of the compressing cylinder is arranged on the supporting beam corresponding to the tray; and

the compressing seat is connected to the end part of the piston rod of the compressing cylinder and is provided with a compressing rod which is used for being matched with the engine.

The high-pressure oil pump bolt tightening machine has the following technical effects:

the high-pressure oil pump bolt tightening machine can carry out visual angle identification on a cam shaft through the disc shaft mechanism, the visual identification mechanism and the tightening mechanism, and can rotate the cam shaft angle to a specific angle according to visual identification data by using the disc shaft mechanism, and then can automatically tighten the high-pressure oil pump bolt by using the tightening mechanism under the angle. The high-pressure oil pump bolt tightening machine has two tightening shafts capable of synchronously rotating, can synchronously tighten the bolts, and can automatically conduct angle adjustment on the cam shaft through the visual identification mechanism, so that the high-pressure oil pump bolts are tightened at the optimal angle, the bolt tightening efficiency is improved, the bolt tightening time is greatly shortened, the labor cost is reduced, and the bolt tightening quality is improved.

Drawings

Fig. 1 is a schematic structural diagram of a high-pressure oil pump bolt tightening machine according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram II of a high-pressure oil pump bolt tightening machine according to an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of a portion of the structure shown in FIG. 2 at A;

fig. 4 is a schematic structural diagram III of a high-pressure oil pump bolt tightening machine according to an embodiment of the present utility model;

fig. 5 is an enlarged partial schematic view of the structure shown in fig. 4 at B.

Reference numerals illustrate:

100-stand;

200-a disc shaft mechanism;

210-a first rack; 211-a first cylinder;

220-X axis track; 221-a first slide; 222-a second cylinder;

230-Y axis track; 231-a second carriage;

240-shaft end sleeve; 250-a first drive source;

300-visual recognition mechanism;

310-supporting a bracket; 320-camera; 330-a translation cylinder;

400-screwing mechanism;

410-tightening the shaft; 411-tightening the sleeve;

420-a second bracket; 430-mounting base;

440-a second drive source;

500-lifting mechanism;

510-lifting the support; 520-lifting table;

600-pressing mechanism;

610-supporting a cross beam; 620—a compaction cylinder;

630-pressing seat; 631-a hold-down bar;

700-transmission line;

710-stop mechanism;

800-control cabinet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the following embodiments are used to further describe the high-pressure oil pump bolt tightening machine according to the present utility model in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question 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.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1, a high-pressure oil pump screw tightening machine according to an embodiment of the present utility model includes a housing 100 and a spool mechanism 200, a visual recognition mechanism 300, and a tightening mechanism 400 provided at one side of the housing 100. The engine base 100 is provided with a tray for bearing an engine, the disc shaft mechanism 200 is used for docking with a cam shaft of the engine and adjusting the angle of the cam shaft, the visual recognition mechanism 300 is used for shooting images of the cam shaft and providing the disc shaft mechanism 200 with angle information of the cam shaft required to be adjusted, and the tightening mechanism 400 is provided with two tightening shafts 410 for synchronously tightening high-pressure oil pump bolts after the cam shaft is adjusted in place.

In the embodiment of the application, through setting up the disc shaft mechanism 200, the visual identification mechanism 300 and the tightening mechanism 400, visual angle identification can be performed on the cam shaft, and the cam shaft angle is rotated to a specific angle by utilizing the disc shaft mechanism 200 according to the data of visual identification, and then the high-pressure oil pump bolt is automatically tightened by utilizing the tightening mechanism 400 under the angle. The high-pressure oil pump bolt tightening machine has two tightening shafts 410 which are synchronously rotated, can synchronously tighten the bolts, and can automatically adjust the angle of the cam shaft through the visual identification mechanism 300, so that the high-pressure oil pump bolts are tightened at the optimal angle, the bolt tightening efficiency is improved, the bolt tightening time is greatly shortened, the labor cost is reduced, and the bolt tightening quality is improved.

In this application, the machine base 100 serves as a table for bolt tightening operation, on which a tray for carrying an engine is provided. Referring to fig. 2, a lifting mechanism 500 may be provided between the tray and the base 100, and the lifting mechanism 500 is used to drive the tray to be lifted or lowered with respect to the base 100. By arranging the lifting mechanism 500, the engine workpiece can be lifted to a preset height according to the requirement, so that the angle of the cam shaft can be conveniently adjusted and the high-pressure oil pump bolt can be conveniently screwed.

The lifting mechanism 500 according to an embodiment includes a lifting support 510 disposed on the base 100, and a lifting cylinder and a lifting table 520, wherein the lifting cylinder has a cylinder body and a piston rod, the cylinder body of the lifting cylinder is connected to the lifting support 510, the lifting table 520 is connected to the piston rod of the lifting cylinder, and the lifting table 520 is used for positioning connection with the tray so as to drive the tray to lift or descend relative to the base 100 under the driving of the lifting cylinder. The lifting cylinder drives the lifting table 520 to lift so as to lift and lower the tray, and the lifting device is simple in structure and easy to realize. In view of stability of lifting, a linear guide rail may be provided between the lifting support 510 and the lifting table 520 to achieve stable and reliable guiding movement.

The lifting table 520 is connected with the positioning of the tray, specifically, the lifting table 520 is provided with a positioning pin, the tray is provided with a positioning hole corresponding to the positioning pin, and the tray is in positioning connection with the lifting table 520 through positioning cooperation of the positioning hole and the positioning pin.

Optionally, a detecting sensor may be further disposed on the lifting table 520, where the detecting sensor may include various sensors, such as an in-place sensor, a level detector, etc., for detecting whether the tray is lifted in place, whether the position of the tray after lifting is level, whether an engine workpiece exists above the tray, whether the workpiece posture is correct, etc.

In this application, the high-pressure oil pump bolt tightening machine further includes a pressing mechanism 600, and the pressing mechanism 600 is disposed above the stand 100 for pressing and positioning the engine on the tray. By providing the hold-down mechanism 600, it is possible to ensure that the engine work piece is stably and firmly loaded on the tray, and to avoid lateral displacement of the engine work piece during subsequent adjustment of the camshaft angle and tightening of the high-pressure oil pump bolt.

Referring to fig. 2, the pressing mechanism 600 according to an embodiment includes a supporting beam 610 disposed above the base 100, and a pressing cylinder 620 and a pressing seat 630, the pressing cylinder 620 having a cylinder body and a piston rod, the cylinder body of the pressing cylinder 620 being disposed on the supporting beam 610 in correspondence with a tray, the pressing seat 630 being connected to an end of the piston rod of the pressing cylinder 620, the pressing seat 630 being provided with a pressing rod 631 for adapting to an engine. The pressing seat 630 may have a substantially rectangular plate structure, and the number of the pressing rods 631 may be plural, for example, four pressing rods 631, and four pressing rods 631 are respectively disposed at four vertex angles of the pressing seat 630. When the pressing seat 630 moves toward the lower engine work piece under the driving of the pressing cylinder 620, the pressing rod 631 is fittingly inserted into the process hole of the engine and firmly presses the engine on the tray.

The high-pressure oil pump bolt tightening machine of the application can further comprise a transmission line 700 which is arranged across the machine base 100, wherein the transmission line 700 is used for transmitting a tray carrying an engine to the position of the machine base 100.

Referring to fig. 1, along the transmission direction of the transmission line 700, the front and rear sides of the housing 100 may be provided with a stopping mechanism 710 for stopping the forward movement of the tray and a non-return mechanism for limiting the backward movement of the tray, respectively. By providing the stop mechanism 710 and the check mechanism, the tray and the engine workpiece thereon can be positioned at the position of the stand 100, so that the lifting table 520 can reliably lift the engine workpiece to an operable position, thereby facilitating subsequent adjustment of the camshaft angle and tightening of the high-pressure oil pump bolts.

The stop mechanism 710 may have a structure in which a cylinder drives a stop lever to extend, so as to stop the tray from moving forward. The non-return mechanism can also be a structure that the air cylinder drives the gear lever to extend out so as to limit the tray to retreat.

The disc shaft mechanism 200 of the present application may take a variety of structural forms. Referring to fig. 2 and 3, the disc shaft mechanism 200 according to an embodiment includes a first bracket 210 provided at one side of the base 100, and an X-axis rail 220, a Y-axis rail 230, an shaft end sleeve 240, and a first driving source 250, the X-axis rail 220 being provided on the first bracket 210, the Y-axis rail 230 being movably provided on the X-axis rail 220 with respect to the X-axis rail 220, the shaft end sleeve 240 being movably provided on the Y-axis rail 230 with respect to the Y-axis rail 230, the shaft end sleeve 240 being for interfacing with a camshaft, the first driving source 250 being in driving connection with the shaft end sleeve 240, the driving source being for driving the shaft end sleeve 240 to rotate to adjust an angle of the camshaft. The first driving source 250 may be a servo motor, a rotary cylinder, or the like.

Preferably, the disc shaft mechanism 200 further comprises a first sliding seat 221 slidably disposed on the X-axis track 220, a second sliding seat 231 slidably disposed on the Y-axis track 230, a first cylinder 311 mounted on the first bracket 210 and a second cylinder 222 mounted on the first sliding seat 221, the first cylinder 311 is in driving connection with the first sliding seat 221 to drive the first sliding seat 221 to reciprocate on the X-axis track 220, and the second cylinder 222 is in driving connection with the second sliding seat 231 to drive the second sliding seat 231 to reciprocate on the Y-axis track 230, and the shaft end sleeve 240 is mounted on the second sliding seat 231.

When the lifting mechanism 500 lifts the engine to a preset height, the first cylinder 311 drives the first sliding seat 221 to slide along the X-axis track 220, the second cylinder 222 drives the second sliding seat to slide along the Y-axis track 230, so that the second sliding seat 231 and the shaft end sleeve 240 thereon move to a position opposite to the camshaft on the engine, then the position of the shaft end sleeve 240 is adjusted to enable the shaft end sleeve 240 to be in butt joint with the camshaft, and then the angle required to be rotated by the camshaft is provided for the servo motor according to the angle information provided by the visual recognition mechanism 300, so that the servo motor can drive the shaft end sleeve 240 to rotate by a corresponding angle to complete the adjustment of the angle of the camshaft.

The tightening mechanism 400 of the present application can take a variety of structural forms. Referring to fig. 4 and 5, a tightening mechanism 400 according to an embodiment includes: the second bracket 420 arranged on one side of the stand 100, the mounting seat 430 and the second driving source 440, wherein the mounting seat 430 is slidably arranged on the second bracket 420, the two tightening shafts 410 are arranged on the mounting seat 430, the end part of each tightening shaft 410 is provided with a tightening sleeve 411 which is used for being matched with a high-pressure oil pump bolt, the second driving source 440 is arranged on the second bracket 420, and the second driving source 440 is in driving connection with the mounting seat 430 and is used for driving the mounting seat 430 to move towards one side of the engine so as to enable the tightening sleeve 411 to be in butt joint with the high-pressure oil pump bolt. The second driving source 440 may be a feeding cylinder, a telescopic cylinder, or the like, and the tightening shaft 410 may be an atlas tightening shaft, so that high tightening accuracy can be satisfied.

After the foregoing step of adjusting the angle of the camshaft is completed, the mounting seat 430 is driven to move beyond one side of the engine by the feeding cylinder, so that the tightening sleeve 411 on the tightening shaft 410 is in butt joint with the high-pressure oil pump bolt, and then the tightening shaft 410 can complete tightening of the high-pressure oil pump bolt according to a preset tightening torque and tightening process; the post-feed cylinder drives the mount 430 machine and the tightening shaft 410 thereon back after the tightening is completed.

In this application, the high-pressure oil pump bolt tightening machine may further include a read-write device and a control cabinet 800, and the control cabinet 800 includes a PLC (programmable logic controller). The read-write equipment can read workpiece information attached to the engine workpiece by using RFID (RadioFrequency Identification) and transmit the workpiece information to the control cabinet 800, and the control cabinet 800 can automatically adjust the tightening torque and the tightening process of the tightening mechanism 400 to tighten the high-pressure oil pump bolt. For example, two tightening operations are required for the workpiece according to the tightening process requirements: firstly, two tightening shafts 410 extend simultaneously, the tightening sleeve 411 is in butt joint with a high-pressure oil pump bolt and then starts to be tightened, when one tightening shaft 410 reaches a preset torque of 15NM, rotation is stopped until the other tightening shaft 410 also reaches 15NM, the two tightening shafts 410 simultaneously rotate reversely by 360 degrees and then simultaneously screw forward until the tightening torque of the two tightening shafts 410 reaches 26+/-4 NM, rotation is stopped, and then the feeding cylinder drives the two tightening shafts 410 to retract simultaneously. At this time, the tightening of the 2 bolts of the high-pressure oil pump is completed, and the RFID read-write equipment writes tightening information into the control module of the control cabinet 800 so as to facilitate the next tightening work.

The tightening mechanism 400 in the example utilizes two altplace tightening shafts to conduct deflection tightening, the tightening mode is high in efficiency, synchronous tightening can be achieved in the tightening process, the bolt stress is guaranteed to be uniform, and quality problems such as bolt breakage or poor butt joint of a high-pressure oil pump cannot occur. Meanwhile, the control cabinet 800 can record and check tightening data, and can automatically tighten the high-pressure oil pump bolt according to preset tightening torque and tightening process.

The visual recognition mechanism 300 of the present application may take a variety of structural forms. Referring to fig. 1, the visual recognition mechanism 300 according to an embodiment includes a support bracket 310, and a camera 320 and a translation cylinder 330 disposed on the support bracket 310, the support bracket 310 being disposed at one side of the base 100, the translation cylinder 330 being connected with the camera 320 to drive the camera 320 to move horizontally.

In order to ensure the normal operation of equipment and simultaneously ensure the safety of operators and peripheral irrelevant personnel, the safety guard bars are uniformly distributed on the periphery of the high-pressure oil pump bolt tightening machine. The mesh size on the safety barrier may be 40mm x 4mm to prevent arms and other body parts from engaging the device body. Meanwhile, a maintenance safety door can be arranged on the safety guardrail, the safety door is provided with an ohm-dragon safety lock, and when the door is opened, the equipment is locked and cannot work. The safety guard rail can be provided with an audible and visual alarm, and when equipment fails, the audible and visual alarm is carried out by using three-color warning lamps. The main body frame of the safety barrier can be made of aluminum profiles, and the overall appearance color of the safety barrier can be black. The yellow ornamental strip is installed to the side aluminium alloy groove that exposes of safety barrier, cooperates the black guardrail net, plays striking effect, can dispose explosion-proof light in the safety barrier.

The working process of the high-pressure oil pump bolt tightening machine provided by the embodiment of the utility model is approximately as follows:

after reading the information of the engine workpiece through the RFID, the PLC automatically adjusts the position and torque of the tightening shaft 410 according to the workpiece information, the lifting mechanism 500 lifts the workpiece, detects whether the posture of the workpiece is horizontal, detects whether the lifting position of the tray is correct, presses down the pressing mechanism 600 after all detection results are correct, presses and positions the engine workpiece on the tray, and prevents the engine from turning on one's side in the tightening process.

The PLC controls the actuation of the disc shaft mechanism 200 such that the shaft end sleeve 240 interfaces with the camshaft while the visual recognition mechanism 300 photographs the camshaft. The PLC provides the angle of the camshaft to be rotated to the servo motor through image comparison analysis, and the servo motor rotates the driving shaft end sleeve 240 by a corresponding angle to perform angle adjustment on the camshaft.

After the camshaft angle adjustment is completed, the PLC controls the tightening mechanism 400 to start, and the atlas tightening shaft 410 protrudes toward the workpiece, so that the tightening sleeve 411 is in butt joint with the high-pressure oil pump bolt. Meanwhile, the atlas tightening shaft 410 can tighten the high-pressure oil pump bolt according to the set tightening process and the set tightening torque.

After the tightening is completed, the tightening shaft 410 is retracted, the disc shaft mechanism 200 and the visual recognition mechanism 300 are retracted, at this time, the tightening of the 2 bolts of the high-pressure oil pump is completed, the pressing mechanism 600 is lifted, the lifting mechanism 500 is lowered, and the RFID read-write device writes the tightening information into the PLC. And after detecting that no workpiece exists at the next station, the PLC controls the transmission line 700 to transmit the workpiece to the next station, and prepares for the next high-pressure oil pump bolt tightening work.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A high pressure oil pump bolt tightening machine, comprising:

the engine base is provided with a tray for bearing an engine;

the disc shaft mechanism is arranged on one side of the base and is used for being in butt joint with a cam shaft of the engine and adjusting the angle of the cam shaft;

the visual identification mechanism is arranged on one side of the base and is used for shooting an image of the cam shaft and providing angle information of the cam shaft required to be adjusted for the disc shaft mechanism; and

the tightening mechanism is arranged on one side of the base and is provided with two tightening shafts for synchronously tightening the high-pressure oil pump bolts after the camshaft is adjusted in place.

2. The high pressure oil pump screw tightening machine according to claim 1, wherein the disc shaft mechanism includes:

the first bracket is arranged on one side of the stand;

an X-axis track arranged on the first bracket;

a Y-axis rail movably disposed on the X-axis rail with respect to the X-axis rail;

an axle sleeve movably disposed on the Y-axis track relative to the Y-axis track, the axle sleeve for interfacing with the camshaft; and

the first driving source is in transmission connection with the shaft end sleeve, and the driving source is used for driving the shaft end sleeve to rotate so as to adjust the angle of the cam shaft.

3. The high pressure oil pump screw tightening machine according to claim 2, characterized in that the disc shaft mechanism further comprises:

the first sliding seat is arranged on the X-axis track in a sliding manner;

the first air cylinder is arranged on the first bracket and is in driving connection with the first sliding seat so as to drive the first sliding seat to reciprocate on the X-axis track;

the second sliding seat is arranged on the Y-axis track in a sliding manner, and the shaft end sleeve is arranged on the second sliding seat; and

the second air cylinder is arranged on the first sliding seat and is in driving connection with the second sliding seat so as to drive the second sliding seat to reciprocate on the Y-axis track.

4. The high pressure oil pump bolt tightening machine according to claim 1, characterized in that the tightening mechanism includes:

the second bracket is arranged on one side of the stand;

the mounting seat is slidably arranged on the second bracket, the two tightening shafts are arranged on the mounting seat, and the end part of each tightening shaft is provided with a tightening sleeve which is used for being matched with a high-pressure oil pump bolt; and

the second driving source is arranged on the second bracket and is in driving connection with the mounting seat, and the second driving source is used for driving the mounting seat to move towards one side of the engine so that the tightening sleeve is in butt joint with the high-pressure oil pump bolt.

5. The high pressure oil pump screw tightening machine according to claim 1, wherein the tightening shaft is an atlas tightening shaft.

6. The high-pressure oil pump bolt tightening machine according to claim 1, wherein the visual recognition mechanism comprises a support bracket, a camera arranged on the support bracket and a translation cylinder, the support bracket is arranged on one side of the machine base, and the translation cylinder is connected with the camera to drive the camera to horizontally move.

7. The high pressure oil pump screw tightening machine according to any one of claims 1 to 6, further comprising a lifting mechanism provided between the housing and the pallet, the lifting mechanism being for driving the pallet to be raised or lowered relative to the housing.

8. The high pressure oil pump screw tightening machine according to claim 7, wherein the lifting mechanism includes:

the lifting support is arranged on the base;

the lifting cylinder is provided with a cylinder body and a piston rod, and the cylinder body of the lifting cylinder is connected to the lifting support; and

the lifting platform is connected with a piston rod of the lifting cylinder and is used for being connected with the tray in a positioning mode so as to drive the tray to lift or descend relative to the base under the driving of the lifting cylinder.

9. The high pressure oil pump screw tightening machine as claimed in any one of claims 1 to 6, further comprising a pressing mechanism provided above the housing for pressing and positioning the engine on the tray.

10. The high pressure oil pump screw tightening machine according to claim 9, characterized in that the pressing mechanism includes:

the supporting cross beam is arranged above the base;

the compressing cylinder is provided with a cylinder body and a piston rod, and the cylinder body of the compressing cylinder is arranged on the supporting cross beam corresponding to the tray; and

the compressing seat is connected with the end part of the piston rod of the compressing cylinder and is provided with a compressing rod which is used for being matched with the engine.