Tightening equipment for fuel distribution pipe

Abstract

The utility model relates to the technical field of engine installation equipment, in particular to fuel distribution pipe tightening equipment which comprises an equipment base, a lifting mechanism and a tightening body. The lifting mechanism drives the tightening body to move. The tightening body comprises a supporting frame, an angle turnover mechanism and a tightening mechanism. The tightening mechanism is provided with a tightening shaft, the angle turnover mechanism drives the tightening mechanism to swing at an angle, the tightening mechanism moves towards the side close to or away from the fuel distribution pipe to be tightened, and the tightening mechanism further transversely moves. The tightening main body is adjusted in the vertical direction through the lifting mechanism, and tightening work is carried out in cooperation with the height of the fuel distribution pipe on the second support. Wherein the tightening mechanism is arranged on the angle turnover mechanism, the tightening shaft is driven to swing through the angle turnover mechanism, so that the angle is in a proper position, and then the tightening mechanism tightens the fuel distribution pipes to be tightened in sequence. And compared with manual tightening, the quick tightening effect is achieved, and the tightening efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine installation equipment, in particular to a device for tightening a fuel distribution pipe. Background Art

[0002] During the installation of the engine, the bolts on the fuel distribution pipe of the engine are tightened. At present, most of them are tightened one by one using a handheld wrench. However, this tightening method is inefficient for engines with multiple fuel distribution pipes, and the tightening process cannot achieve synchronous tightening, which easily causes uneven force on the bolts, and often leads to quality problems such as bolt breakage or poor docking of the fuel distribution pipe. At the same time, the tightening data needs to be recorded and inspected during the installation of the engine, and a torque wrench is required to measure the torque value after manual tightening. Since the installation angle of the fuel distribution pipe is installed from the upper oblique direction, the installer needs to hold the tightening shaft in the opposite direction to tighten it, which is very inconvenient to install. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a fuel distribution pipe tightening device, which solves the technical problem that a torque wrench is still needed to measure the torque value after manual tightening, and since the installation angle of the fuel distribution pipe is installed from an upward direction, the installer needs to hold the tightening shaft in reverse to tighten it, which makes the installation very inconvenient.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0007] The utility model provides a fuel distribution pipe tightening device, including a device base, the device base having a first support seat distributed up and down and a second support seat for receiving and tightening the fuel distribution pipe, and also including a lifting mechanism disposed on the first support seat and used for supporting a tightening body, the lifting mechanism can drive the tightening body to perform a linear reciprocating motion in a vertical direction relative to the first support seat;

[0008] The tightening body comprises a support frame arranged on the top of the lifting mechanism, an angle turning mechanism arranged on the support frame, and a tightening mechanism in the angle turning mechanism;

[0009] The tightening mechanism has a tightening axis, and the angle flipping mechanism can drive the tightening mechanism to swing upward or downward at an angle relative to the support frame so that the tightening axis is parallel to the axial direction of the fuel distribution pipe to be tightened, and the tightening mechanism can move toward or away from one side of the fuel distribution pipe to be tightened, and the tightening mechanism can also move laterally along the arrangement of the fuel distribution pipes to be tightened to the position of each fuel distribution pipe to be tightened.

[0010] Optionally, the angle flipping mechanism includes a flip base plate, flip side plates relatively arranged on both sides of the flip base plate, a flip driving member arranged on one side of the flip side plate, a flip transmission member connected to the flip driving member, and a flip body connected to the flip transmission member, the flip body can swing relative to the flip base plate, and the flip body is provided with a slide rail that can cooperate with the tightening mechanism.

[0011] Optionally, the support frame includes a support base plate arranged on the lifting mechanism and capable of being lifted and lowered relative to the lifting mechanism, a first direction transverse shifting plate capable of performing transverse horizontal movement relative to the support base plate, the flip base plate is arranged on the first direction transverse shifting plate, and the flip base plate can perform linear reciprocating movement in a second direction perpendicular to the first direction relative to the first direction transverse shifting plate, so as to drive the angle flip mechanism to perform horizontal movement in the first direction and the second direction respectively;

[0012] The bottom end surface of the supporting base plate is provided with a transverse cylinder capable of driving the first-direction transverse plate to move along the first direction.

[0013] Optionally, the tightening mechanism also includes a connecting plate connected to the flip transmission member, a mounting plate perpendicular to the connecting plate, a tightening sleeve located at the front end of the tightening shaft, a tightening structure capable of driving the tightening sleeve to rotate a tightening bolt, a tightening power source for driving the tightening structure, and a displacement driving member capable of driving the tightening shaft to move laterally along the arrangement of the fuel distribution pipe to be tightened, the displacement driving member is connected to the tightening shaft via a movable plate to drive the tightening shaft to move so that the tightening sleeve is aligned with the fuel distribution pipe to be tightened.

[0014] Optionally, the tightening mechanism further includes a slide plate which is perpendicular to the connecting plate and the mounting plate respectively, and a tightening shaft feed drive member which can drive the slide plate to move toward or away from a side of the fuel distribution pipe to be tightened.

[0015] Optionally, a clamping mechanism is further included, which is arranged on the second support and can clamp the engine of the fuel distribution pipe to be tightened.

[0016] Optionally, it also includes a safety shield that is arranged on the outside of the equipment base, and the safety shield has an inlet for the engine to enter the fuel distribution pipe to be tightened and an outlet for the engine after tightening.

[0017] Optionally, the second support is provided with a positioning jacking mechanism for receiving and tightening the fuel distribution pipe engine, and the positioning jacking mechanism can drive the engine to rise and fall to cooperate with the tightening mechanism for tightening.

[0018] Optionally, the positioning and lifting mechanism includes a positioning plate fixedly set on the second support through a support column, and the support column suspends the positioning plate to reserve installation space, a lifting cylinder is fixedly set in the installation space below the positioning plate, and the lifting cylinder passes through the positioning plate and is connected to a movable plate, linear guide rails are set at the four corners of the movable plate, positioning pins are set at the diagonal corners of the top end face of the movable plate, and a workpiece horizontal detection part is set at the other diagonal corner.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the utility model are as follows: the utility model is a fuel distribution pipe tightening device, which is used to tighten the engine fuel distribution pipe. Specifically, a lifting mechanism capable of adjusting the lifting of the tightening body is provided on the first support of the equipment base, so as to adjust the tightening body in the vertical direction, so as to cooperate with the height of the fuel distribution pipe on the second support for tightening. Among them, the tightening mechanism is provided on the angle flipping mechanism, and the angle flipping mechanism can drive the tightening shaft on the tightening mechanism to adjust itself according to the axial direction of the fuel distribution pipe to be tightened, so that the angle is in a suitable position, and then the fuel distribution pipe to be tightened is tightened in sequence by the tightening mechanism. The tightening angle can be adaptively adjusted by the angle flipping mechanism before tightening, so as to achieve the effect of fast tightening, and the tightening efficiency is greatly improved compared with manual tightening. It solves the technical problem that a torque wrench is needed to measure the torque value after manual tightening, and the installation personnel need to hold the tightening shaft in the opposite direction to tighten the fuel distribution pipe because the installation angle is installed from the oblique upward direction, which is very inconvenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the fuel distribution pipe tightening device of the utility model;

[0022] Figure 2 for Figure 1 The structural schematic diagram of the safety shield is not shown;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure of the equipment base and lifting mechanism;

[0024] Figure 4 for Figure 2 Structural diagram of the middle support frame;

[0025] Figure 5 for Figure 2 A schematic diagram of the structure of the rear side of the mid-angle flip mechanism (the tightening mechanism is not shown);

[0026] Figure 6 for Figure 2 A schematic diagram of the structure of the right side of the mid-angle flip mechanism (the tightening mechanism is not shown);

[0027] Figure 7 for Figure 2 A schematic diagram of the structure of the left side of the mid-angle flip mechanism (the tightening mechanism is not shown);

[0028] Figure 8 for Figure 2 A schematic diagram of the structure of the rear side of the tightening body;

[0029] Fig. 9 for Figure 2 Schematic diagram of the structure of the rear side of the tightening body (connection plate not shown).

[0030] [Description of Reference Numerals]

[0031] 1: Equipment base; 11: First support; 12: Second support; 2: Lifting mechanism; 21: Lifting connection side plate; 22: Guide plate; 23: Lifting fixing plate; 24: Lifting electric cylinder; 3: Tightening body; 31: Support frame; 311: Support bottom plate; 312: First direction lateral plate; 313: lateral cylinder; 314: Limit buffer; 315: Forward cylinder; 32: Angle flip mechanism; 321: Flip bottom plate; 322: Flip side plate; 323: Flip driving member; 324: Flip transmission member; 325: Flip body; 326 : Slide rail; 327: Bearing; 328: Angle limiter; 33: Tightening mechanism; 331: Tightening shaft; 332: Connecting plate; 333: Mounting plate; 334: Slide plate; 335: Tightening shaft feed drive; 336: Displacement drive; 337: Tightening sleeve; 338: Moving plate; 339: Displacement guide rail; 4: Safety shield; 5: Positioning and lifting mechanism; 51: Positioning plate; 52: Support column; 53: Lifting cylinder; 54: Movable plate; 55: Linear guide rail; 56: Positioning pin; 57: Workpiece level detection member; 6: Clamping mechanism. DETAILED DESCRIPTION

[0032] In order to better explain the utility model and facilitate understanding, the utility model is described in detail below with reference to the accompanying drawings and through specific implementation methods. Figure 2 The orientation of Figure 2The position of the middle equipment base 1 relative to the lifting mechanism 2 is defined as "downward"; the position of the second support 12 relative to the first support 11 is defined as "front".

[0033] Example

[0034] See also Figure 1 and Figure 2 As shown, a fuel distribution pipe tightening device includes a device base 1, which has a first support 11 distributed up and down and a second support 12 for receiving and tightening the fuel distribution pipe, and also includes a lifting mechanism 2 arranged on the first support 11 and used to support the tightening body 3, and the lifting mechanism 2 can drive the tightening body 3 to perform a vertical linear reciprocating motion relative to the first support 11. It should be noted that the device base 1 is mainly used to support other mechanisms, provide a stable lower support, and ensure the position accuracy between various moving parts.

[0035] See also Figure 3 As shown, specifically, the servo lifting mechanism 2 is mainly composed of a lifting electric cylinder 24, guide plates 22 on both sides, a lifting frame formed by a supporting bottom plate 311 and a lifting connecting side plate 21, and a lifting fixing plate 23, which can realize the height direction adjustment of the entire tightening mechanism 33 and perform automatic height adjustment according to the height of the fuel distribution pipe of different models of engines.

[0036] In this embodiment, the tightening body 3 includes a support frame 31 disposed on the top of the lifting mechanism 2, an angle flip mechanism 32 disposed on the support frame 31, and a tightening mechanism 33 in the angle flip mechanism 32. The tightening mechanism 33 has a tightening shaft 331, and the angle flip mechanism 32 can drive the tightening mechanism 33 to swing upward or downward at an angle relative to the support frame 31, so that the tightening shaft 331 is parallel to the axial direction of the fuel distribution pipe to be tightened, and the tightening mechanism 33 can move toward or away from the side of the fuel distribution pipe to be tightened, and the tightening mechanism 33 can also move horizontally along the arrangement of the fuel distribution pipes to be tightened to the position of each fuel distribution pipe to be tightened.

[0037] Here, specifically, a lifting mechanism capable of adjusting the lifting and lowering of the tightening body is provided on the first support 11 of the equipment base 1, so as to adjust the tightening body in the vertical direction, so as to cooperate with the height of the fuel distribution pipe on the second support 12 for tightening. Among them, the tightening mechanism 33 is provided on the angle flip mechanism 32, and the angle flip mechanism 32 can drive the tightening shaft 331 on the tightening mechanism 33 to adjust itself according to the axial direction of the fuel distribution pipe to be tightened, so that the angle is at a suitable position, and then the fuel distribution pipe to be tightened is tightened in sequence through the tightening mechanism 33. The tightening angle of the tightening body can be adaptively adjusted by the angle flip mechanism before tightening, so as to achieve the effect of fast tightening, and greatly improve the tightening efficiency compared with manual tightening. It solves the technical problem that a torque wrench is needed to measure the torque value after manual tightening, and since the installation angle of the fuel distribution pipe is installed from the oblique upward direction, the installer needs to hold the tightening shaft in the opposite direction to tighten, which is very inconvenient to install.

[0038] Here, this embodiment is mainly aimed at tightening the fuel distribution pipe bolts during the engine installation process. In this embodiment, the position and tightening process of the tightening shaft 331 can be automatically adjusted according to different engine models to tighten the fuel distribution pipe bolts. The fuel distribution pipe bolts are automatically tightened with a fixed torque through the Atlas tightening shaft 331. It should be noted that the tightening shaft 331 in this embodiment is an Atlas tightening shaft, and the model of the tightening shaft 331 is QMX50-15-RT, and the drive and power source of the tightening shaft 331 are both existing technologies, which will not be described in detail here.

[0039] Furthermore, the angle flipping mechanism 32 includes a flip base plate 321, flip side plates 322 relatively arranged on both sides of the flip base plate 321, a flip driving member 323 arranged on one side of the flip side plate 322, a flip transmission member 324 connected to the flip driving member 323, and a flip body 325 connected to the flip transmission member 324. The flip body 325 can swing relative to the flip base plate 321, and a slide rail 326 that can cooperate with the tightening mechanism 33 is provided on the flip body 325.

[0040] See also Figure 4 As shown, further, the support frame 31 includes a support base plate 311 arranged on the lifting mechanism 2 and capable of being lifted and lowered relative to the lifting mechanism 2, a first direction transverse moving plate 312 capable of making transverse horizontal movement relative to the support base plate 311, a forward moving cylinder 315 is arranged on the first direction transverse moving plate 312, the top of the extended end of the forward moving cylinder 315 is connected to the flip base plate 321, the flip base plate 321 is arranged on the first direction transverse moving plate 312, and the flip base plate 321 can move relative to the first direction transverse moving plate 312 in a direction perpendicular to the first direction (left and right direction, Figure 4The second direction (the direction indicated by the arrow in the middle) of the support base plate 311 is linearly reciprocating to drive the angle flip mechanism 32 to make horizontal movements in the first direction and the second direction respectively. The bottom end surface of the support base plate 311 is provided with a lateral cylinder 313 that can drive the first direction lateral plate 312 to move along the first direction. It is mainly used to realize the overall left-right and front-back displacement of the tightening system.

[0041] Furthermore, the tightening mechanism 33 also includes a connecting plate 332 connected to the flip transmission member 324, a mounting plate 333 perpendicular to the connecting plate 332, a tightening sleeve 337 located at the front end of the tightening shaft 331, a tightening structure capable of driving the tightening sleeve 337 to rotate a tightening bolt, a tightening power source for driving the tightening structure, and a displacement driving member 336 capable of driving the tightening shaft 331 to move laterally along the arrangement of the fuel distribution pipe to be tightened. The displacement driving member 336 is connected to the tightening shaft 331 through a moving plate 338 to drive the tightening shaft 331 to move so that the tightening sleeve 337 is aligned with the fuel distribution pipe to be tightened. The tightening shaft and the bolt are docked. Moreover, the displacement driving member 336 can drive the tightening shaft 331 to move laterally in the left and right directions. It should be noted that the shifting drive component 336 includes a long shifting cylinder and a short shifting cylinder. The two shifting cylinders can respectively drive the Atlas eccentric tightening shaft 331 and drive the tightening shaft 331 to move with the cooperation of the guide rail slider. The purpose of setting the two shifting cylinders of different lengths is to achieve the adjustment of the cylinder spacing and shield the corresponding tightening shaft according to the increase or decrease in the number of engine bolts.

[0042] Furthermore, the tightening mechanism 33 further includes a slide plate 334 which is perpendicular to the connecting plate 332 and the mounting plate 333, and a tightening shaft feed drive 335 which can drive the slide plate 334 to move toward or away from the side of the fuel distribution pipe to be tightened, so as to facilitate the sliding connection between the integral tightening mechanism 33 and the flip bottom plate 321.

[0043] Furthermore, it also includes a clamping mechanism 6, which is arranged on the second support 12 and can clamp the engine of the fuel distribution pipe to be tightened. After the positioning jacking mechanism 5 is raised, in order to ensure that the workpiece is stable and firm, it needs to be clamped when tightening. The upper part of the cylinder head adopts four-point clamping. According to different engine models, the corresponding cylinder is automatically extended for clamping to prevent lateral displacement when the tightening shaft and the workpiece bolt are docked.

[0044] Furthermore, it also includes a safety shield 4 that is arranged on the outside of the equipment base 1, and the safety shield 4 has an inlet for the engine to enter the fuel distribution pipe to be tightened and an outlet for the engine after tightening. In order to ensure the normal operation of the equipment and at the same time ensure the safety of the operator and unrelated personnel in the surrounding area, a black mesh safety shield is arranged around the equipment. The shield grid size is 40x40x4mm to prevent arms and other body parts from contacting the equipment. At the same time, a maintenance safety door is set. The safety door is equipped with an Omron safety lock. When the door is open, the equipment is locked and cannot work. When the equipment fails, the three-color warning light will sound and light alarm. The main frame of the safety guardrail is made of aluminum profiles. Yellow decorative strips are installed in the exposed side aluminum profile grooves, matched with black guardrail nets, and explosion-proof lighting is installed in the protective cover. The control cabinet, operating panel, protective cover and mounting plate are in Mitsubishi green color.

[0045] Furthermore, the second support 12 is provided with a positioning jacking mechanism 5 for receiving and tightening the fuel distribution pipe engine. The positioning jacking mechanism 5 can drive the engine to rise and fall to cooperate with the tightening mechanism 33 for tightening.

[0046] Furthermore, the positioning and lifting mechanism 5 includes a positioning plate 51 fixedly arranged on the second support 12 by a support column 52, and the support column 52 suspends the positioning plate 51 to reserve installation space, a lifting cylinder 53 is fixedly arranged in the installation space below the positioning plate 51, and the lifting cylinder 53 passes through the positioning plate 51 and is connected to a movable plate 54, and linear guide rails 55 are arranged at the four corners of the movable plate 54, and a positioning pin 56 is arranged at the diagonal corner of the top end face of the movable plate 54, and a workpiece horizontal detection member 57 is arranged at another diagonal corner. The positioning and lifting mechanism 5 is mainly used for positioning and lifting the workpiece pallet, and at the same time detecting whether the position of the pallet is horizontal after lifting, whether the pallet posture is correct, and pallet lifting detection. Subsequent actions can be performed only after all actions are completed and the detection switch is lit.

[0047] In this embodiment, the main benefits of the equipment are to improve work efficiency, ensure that all bolts are tightened at the same time, and improve assembly quality. Since each engine needs to tighten the fuel distribution pipe bolts synchronously, workers are required to hold the tightening shaft in a specific order to pre-tighten and tighten with a fixed torque to ensure that the fuel distribution pipe is installed stably. After the tightening is completed, the tightening torque needs to be verified using a torque wrench. The use of this equipment can greatly shorten the time for tightening bolts and reduce labor costs. The tightening shaft can automatically adjust the tightening torque and tightening position according to the tightening process, and tighten the bolts that need to be tightened synchronously to avoid insufficient torque and missed tightening that often occurs during manual tightening. At the same time, this equipment is equipped with displacement mechanisms such as servos and cylinders, which can tighten the fuel distribution pipe bolts at the best angle through multi-degree-of-freedom automatic displacement adjustment. All tightening data can be uploaded to the SAME network disk, and the tightening information can be written into the RFID card for later reference.

[0048] The purpose of this embodiment is to provide a set of tightening equipment for fuel distribution pipes that can automatically realize the displacement of the tightening shaft 331 in the lateral direction (i.e., the left and right direction) and the bolt tightening function. After reading the workpiece information through RFID (radio frequency identification), the PLC controls the displacement drive 336 according to the workpiece information to automatically adjust the lateral position and torque of the tightening shaft 331. In addition, the positioning jacking mechanism 5 lifts the workpiece (the engine fuel distribution pipe to be tightened). At the same time, the workpiece horizontal detection member 57 on the positioning jacking mechanism 5 can detect whether the posture of the workpiece is horizontal and whether the lifting position of the positioning plate 51 is correct. After all the detection results are correct, the clamping mechanism 6 is pressed down to prevent the engine from tipping over during the tightening process. The tightening shaft 331 determines the position of the fuel distribution pipe according to the engine model, automatically adjusts the height through the lifting cylinder 24 of the lifting mechanism 2, flips the angle along the rotating shaft (the rotating shaft is set in the horizontal direction) through the flip driving component 323 (flipping cylinder) of the angle flipping mechanism 32, drives the first direction transverse plate 312 to slide left and right relative to the supporting base plate 311 through the transverse cylinder 313, and drives the angle flip base plate 321 to adjust the front and rear position through the forward cylinder 315, to ensure that the tightening shaft sleeve 337 can be accurately docked with the fuel distribution pipe bolts, the tightening shaft feed driving component 335 (feed cylinder) drives the tightening shaft 331 to feed at the same time, and multiple bolts of the fuel distribution pipe are tightened synchronously, and the tightening shaft is docked with the fuel distribution pipe bolts and tightened according to the set tightening process. After tightening is completed, the tightening shaft retracts. At this time, the bolts of the fuel distribution pipe are tightened, the clamping mechanism 2 rises, the positioning jacking mechanism 5 falls, and the RFID read-write head writes the tightening information into the pallet chip and the tightening shaft controller. After detecting that there is no workpiece in the next station, the workpiece enters the next station and prepares for the next tightening work.

[0049] It should be noted that the 4K3 fuel distribution pipe tightening machine mainly consists of an equipment base 1, a lifting mechanism 2, a support base plate 311 that can move left and right, an angle flip mechanism 32, a forward cylinder 315 that moves forward and backward, a tightening shaft feeding mechanism 335, a tightening mechanism 33 of the fuel distribution pipe, an Atlas tightening shaft 331, a workpiece clamping mechanism 6, a displacement drive member 336 for the lateral movement of the tightening shaft 331, a tightening sleeve 337, a safety shield 4, a positioning jacking mechanism 5, and a stop and check mechanism is provided on the angle flip mechanism 32 and the drive member for positioning, and the stop and check mechanism is composed of various position inspection mechanisms, an electric control cabinet, a PLC and other components. All the above mechanical components involving precision need to be positioned with positioning pins, and the transmission line is mainly moved. The above stop and check mechanisms, position inspection mechanisms, electric control cabinets, PLCs and other components are the mechanisms of existing machine tools and will not be described in detail here. It should be noted that the actions of the tightening mechanism 33, including the stopping, lifting, positioning and detection of the positioning plate 51, mainly include the lifting and lowering of the tightening system, the automatic displacement mechanism in the X-axis direction, the automatic displacement mechanism in the Y-axis direction and the tightening axis starting tightening. It supports single-step or multi-step tightening strategies, as well as tightening strategies such as low reaction force and true angle; supports error prevention functions such as counting, preventing leakage, wrong tightening, repeated tightening, and connecting line output signals; supports torque / angle monitoring and control; can be connected to the SAME network system to automatically upload data. This part is all existing electronic control structural parts, so I will not go into too much detail here.

[0050] The workpiece is transmitted to this station through the conveyor line. The stop mechanism blocks the pallet from moving forward and the non-return mechanism pops up to limit the pallet from moving backward. Here, the engine is facing forward. After the pallet stops, it detects whether the pallet is in place, whether there is a workpiece on the pallet, and whether the workpiece posture is correct. At the same time, RFID reads the workpiece information, the lifting mechanism lifts the workpiece, detects whether the workpiece posture is horizontal, and detects whether the pallet lifting position is correct. After all the test results are correct, the clamping mechanism presses down to ensure that the workpiece is stable and firm.

[0051] The tightening torque and tightening process of the tightening system are automatically adjusted according to the workpiece information read by RFID. First, the tightening mechanism 33 is moved to a specific position through the lifting electric cylinder 24, left and right lateral displacement, front and rear servo displacement, flip drive 323 and flip transmission 324, and the tightening shaft 331 is automatically displaced through the displacement drive 336 and other related parts and the retreat cylinder of the tightening shaft 331. Ensure that all tightening shaft sleeves 337 correspond to the fuel distribution pipe bolts one by one, and the fuel distribution pipe tightening mechanism 33 is the same At the same time, the tightening shaft 331 is extended to tighten the bolts. According to the tightening process requirements, the workpiece needs to be tightened twice: first, the four tightening machines are extended at the same time, and the tightening shafts are connected to the fuel distribution pipe bolts and then tightened. When a tightening shaft reaches the preset torque of 15NM, it stops moving forward until the other three tightening shafts 331 reach 15NM. The four tightening shafts 331 are reversed 360° at the same time, and then tightened forward at the same time until the tightening torque of the four tightening shafts 331 reaches 26±4NM and then stops rotating. The cylinder drives the four tightening shafts to retract at the same time. At this time, the four bolts of the fuel distribution pipe are tightened, the clamping mechanism 6 rises, the positioning jacking mechanism 5 falls, and the RFID read-write head writes the tightening information into the pallet chip and the tightening shaft controller. After detecting that there is no workpiece in the next station, the workpiece enters the next station and prepares for the next tightening work.

[0052] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0055] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fuel distribution pipe tightening device, characterized in that: The device comprises a device base (1), wherein the device base (1) has a first support (11) distributed in an upper and lower manner and a second support (12) for receiving and tightening a fuel distribution pipe, and further comprises a lifting mechanism (2) arranged on the first support (11) and for supporting a tightening body (3), wherein the lifting mechanism (2) can drive the tightening body (3) to perform a vertical linear reciprocating motion relative to the first support (11); The tightening body (3) comprises a support frame (31) arranged on the top of the lifting mechanism (2), an angle turning mechanism (32) arranged on the support frame (31), and a tightening mechanism (33) in the angle turning mechanism (32); The tightening mechanism (33) has a tightening shaft (331), and the angle flipping mechanism (32) can drive the tightening mechanism (33) to swing upward or downward at an angle relative to the support frame (31), so that the tightening shaft (331) is parallel to the axial direction of the fuel distribution pipe to be tightened, and the tightening mechanism (33) can move toward or away from the side of the fuel distribution pipe to be tightened, and the tightening mechanism (33) can also move laterally along the arrangement of the fuel distribution pipes to be tightened to the position of each fuel distribution pipe to be tightened.

2. The fuel distribution pipe tightening device according to claim 1, characterized in that: The angle flipping mechanism (32) comprises a flipping bottom plate (321), flipping side plates (322) arranged on both sides of the flipping bottom plate (321), a flipping driving member (323) arranged on one side of the flipping side plate (322), a flipping transmission member (324) connected to the flipping driving member (323), and a flipping body (325) connected to the flipping transmission member (324); the flipping body (325) can swing relative to the flipping bottom plate (321); and the flipping body (325) is provided with a slide rail (326) capable of cooperating with the tightening mechanism (33).

3. The fuel distribution pipe tightening device according to claim 2, characterized in that: The support frame (31) comprises a support base plate (311) which is arranged on the lifting mechanism (2) and can be lifted and lowered relative to the lifting mechanism (2), and a first direction transverse shifting plate (312) which can make transverse horizontal movement relative to the support base plate (311); a forward movement cylinder (315) is arranged on the first direction transverse shifting plate (312); the top of the extended end of the forward movement cylinder (315) is connected to the flip base plate (321); the flip base plate (321) is arranged on the first direction transverse shifting plate (312), and the flip base plate (321) can make linear reciprocating movement relative to the first direction transverse shifting plate (312) along a second direction perpendicular to the first direction, so as to drive the angle flip mechanism (32) to make horizontal movement in the first direction and the second direction respectively; The bottom end surface of the supporting bottom plate (311) is provided with a transverse cylinder (313) capable of driving the first-direction transverse plate (312) to move along the first direction.

4. The fuel distribution pipe tightening device according to claim 2, characterized in that: The tightening mechanism (33) also includes a connecting plate (332) connected to the flip transmission member (324), a mounting plate (333) perpendicular to the connecting plate (332), a tightening sleeve (337) located at the front end of the tightening shaft (331), a tightening structure capable of driving the tightening sleeve (337) to rotate a tightening bolt, a tightening power source driving the tightening structure, and a displacement driving member (336) capable of driving the tightening shaft (331) to move laterally along the arrangement of the fuel distribution pipe to be tightened. The displacement driving member (336) is connected to the tightening shaft (331) via a moving plate (338) to drive the tightening shaft (331) to move so that the tightening sleeve (337) is aligned with the fuel distribution pipe to be tightened.

5. The fuel distribution pipe tightening device according to claim 4, characterized in that: The tightening mechanism (33) further comprises a slide plate (334) which is perpendicular to the connecting plate (332) and the mounting plate (333), and a tightening shaft feed drive member (335) which can drive the slide plate (334) to move toward or away from a side of the fuel distribution pipe to be tightened.

6. The fuel distribution pipe tightening device according to claim 1, characterized in that: It also comprises a clamping mechanism (6), which is arranged on the second support (12) and is capable of clamping the engine of the fuel distribution pipe to be tightened.

7. The fuel distribution pipe tightening device according to claim 1, characterized in that: It also comprises a safety shield (4) which is arranged outside the equipment base (1), and the safety shield (4) has an inlet for the engine to enter the fuel distribution pipe to be tightened and an outlet for the engine after tightening.

8. The fuel distribution pipe tightening device according to claim 1, characterized in that: The second support (12) is provided with a positioning jacking mechanism (5) for receiving the engine to be tightened on the fuel distribution pipe, and the positioning jacking mechanism (5) can drive the engine to rise and fall to cooperate with the tightening mechanism (33) for tightening.

9. The fuel distribution pipe tightening device according to claim 8, characterized in that: The positioning and lifting mechanism (5) comprises a positioning plate (51) fixedly arranged on the second support (12) by a support column (52), and the support column (52) suspends the positioning plate (51) to reserve installation space, a lifting cylinder (53) is fixedly arranged in the installation space below the positioning plate (51), and the lifting cylinder (53) passes through the positioning plate (51) and is connected to a movable plate (54), linear guide rails (55) are arranged at the four corners of the movable plate (54), a positioning pin (56) is arranged at the diagonal corner of the top end surface of the movable plate (54), and a workpiece horizontal detection member (57) is arranged at another diagonal corner.

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