CN110587279A - Indexing mechanism for assembling fuel delivery pump, fuel delivery pump tightening machine and fuel delivery pump assembling method - Google Patents
Indexing mechanism for assembling fuel delivery pump, fuel delivery pump tightening machine and fuel delivery pump assembling method Download PDFInfo
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- CN110587279A CN110587279A CN201910925278.2A CN201910925278A CN110587279A CN 110587279 A CN110587279 A CN 110587279A CN 201910925278 A CN201910925278 A CN 201910925278A CN 110587279 A CN110587279 A CN 110587279A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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Abstract
The invention discloses an indexing mechanism for assembling a fuel delivery pump, a fuel delivery pump tightening machine and a fuel delivery pump assembling method, wherein the indexing mechanism comprises a workbench, a first tightening assembly, a second tightening assembly and the indexing mechanism for assembling the fuel delivery pump according to any one of claims 1 to 5, the workbench is provided with the indexing mechanism, the first tightening assembly and the second tightening assembly are both arranged on the workbench, and the movement directions of an actuating mechanism of the first tightening assembly and an actuating mechanism of the second tightening assembly are mutually vertical; the actuating sub-mechanism of the first tightening assembly can be sleeved on a bolt in the horizontal direction of the oil transfer pump of the bolt to be tightened, and the actuating sub-mechanism of the second tightening assembly can be sleeved on a bolt in the vertical direction of the oil transfer pump of the bolt to be tightened; when the indexing mechanism rotates, the first tightening assembly can be sleeved with each first plate sleeve of the indexing mechanism. On the premise of ensuring the tightening precision, the invention reduces the labor intensity of the oil transfer pump assembly work and improves the working efficiency.
Description
Technical Field
The invention relates to the field of oil transfer pump assembly, in particular to an indexing mechanism for oil transfer pump assembly, an oil transfer pump screwing machine and an oil transfer pump assembly method.
Background
The fuel delivery pump is used for delivering diesel oil in the fuel tank to the fuel injection pump, and the diesel oil circulates in the low-pressure pipeline by ensuring the oil quantity and maintaining a certain oil supply pressure to overcome the resistance of the pipeline and the fuel filter. With the development of diesel engine technology in China, the oil transfer pump is used as one of important components of the diesel engine, the demand for the oil transfer pump is more and more, and the requirement for the thread assembling quality is higher and higher. Especially, when the oil delivery pump body and the oil delivery pump head are assembled, because the front end structure of the oil delivery pump head is a cylindrical structure and is relatively close to an adjacent bolt, the structure specificity is realized, and the existing automatic screwing machine cannot be directly used. If manual tightening is adopted, the defects of low efficiency, high labor intensity of workers, incapability of ensuring precision and the like exist.
In the prior publication, no related technology exists for screwing the threads when the oil delivery pump body and the oil delivery pump head are assembled.
Disclosure of Invention
Aiming at the defect of low automation degree of screw tightening during the assembly of an oil delivery pump body and an oil delivery pump head in the production process of the existing oil delivery pump, the invention aims to provide the indexing mechanism for the assembly of the oil delivery pump, the oil delivery pump tightening machine and the oil delivery pump assembling method.
A first object of the present invention is to provide an indexing mechanism for assembling an oil feed pump.
The second purpose of the invention is to provide a tightening machine for the oil transfer pump.
The third object of the invention is to provide an assembly method of the oil transfer pump.
In order to achieve the above purpose, the invention discloses the following technical scheme,
an indexing mechanism for assembling an oil transfer pump comprises an indexing disc, a first plate sleeve, a clamping seat and a second plate sleeve, wherein the second plate sleeve is slidably sleeved in the first plate sleeve, the first plate sleeve can reciprocate along the extension direction of the second plate sleeve, the reciprocating movement distance of the first plate sleeve is longer than the length of a column head of the oil transfer pump, and the second plate sleeve can fix a pump head of the oil transfer pump; the index plate is installed in a plurality of clamp seats, and the clamp seat can be used for pressing from both sides tight fuel delivery pump body.
Furthermore, the clamping seats take the circle center of the dividing disc as the circle center of the array, and the circle array is arranged on the dividing disc.
Furthermore, a first section of the outer side of the first plate sleeve is hexagonal prism-shaped, a second section of the outer side of the first plate sleeve is cylindrical, a channel for sleeving the second plate sleeve is formed in the first plate sleeve, and the channel is formed along the axial direction of the first plate sleeve; the cross-sectional shape of the channel is formed by splicing two semicircles with different radiuses.
Further, the second plate sleeve comprises a first positioning portion, a second positioning portion and a third positioning portion which are connected in sequence, the first positioning portion and the second positioning portion are both in a semi-cylindrical shape, the inner diameter of the first positioning portion is larger than that of the second positioning portion, and the third positioning portion is an arc-shaped protrusion extending from the straight end face of the second positioning portion.
Further, the first positioning part and the second positioning part of the second plate sleeve are of equal thickness, and the thickness of the first positioning part and the second positioning part is equal to the radius difference of two semicircles with different radii in the section of the channel of the first plate sleeve;
two opposite inner side surfaces of the third positioning portion are parallel.
The invention further discloses a fuel delivery pump tightening machine which comprises a workbench, a first tightening assembly, a second tightening assembly and the indexing mechanism for assembling the fuel delivery pump as claimed in any one of the embodiments 1-5, wherein the workbench is provided with the indexing mechanism, the first tightening assembly and the second tightening assembly are both arranged on the workbench, and the movement directions of the actuating mechanism of the first tightening assembly and the actuating mechanism of the second tightening assembly are perpendicular to each other; the actuating sub-mechanism of the first tightening assembly can be sleeved on a bolt in the horizontal direction of the oil transfer pump of the bolt to be tightened, and the actuating sub-mechanism of the second tightening assembly can be sleeved on a bolt in the vertical direction of the oil transfer pump of the bolt to be tightened;
when the indexing mechanism rotates, the first tightening assembly can be sleeved with each first plate sleeve of the indexing mechanism.
Further, first screwing up subassembly includes the first linear slide rail of level setting, first slider, first cylinder, first PMKD and execution sub-mechanism, and first linear slide rail installation first slider, first PMKD is installed to first slider top, and first PMKD installation biasing sub-mechanism, execution sub-mechanism is connected to biasing sub-mechanism's front end, and the output shaft of first cylinder is connected to first slider rear side, and first cylinder is fixed in the workstation, and first cylinder can promote first slider motion, and then drives execution sub-mechanism reciprocating motion.
Further, the actuator mechanism comprises a first outer hexagonal sleeve and a second outer hexagonal sleeve;
the bias sub-mechanism comprises two pulling shafts, a transmission mechanism and a first power source, the servo motors are connected with the pulling shafts through the transmission mechanism, the end parts of the two pulling shafts are respectively connected with the first outer hexagonal sleeve and the second outer hexagonal sleeve, and the two pulling shafts obtain power of the servo motors through the transmission mechanism.
Further, the second tightening mechanism comprises a vertical shaft support, a second linear guide rail, a second sliding block, a second fixed bottom plate, a second air cylinder and an actuating sub-mechanism, the second linear guide rail is mounted on the vertical shaft support, the second sliding block is mounted on the second linear guide rail in a matching mode, the sliding block is fixedly connected with the tightening shaft fixing plate, the second air cylinder is mounted above the second fixed bottom plate and can push the second fixed bottom plate to move along the second linear guide rail, the tightening mechanism is mounted above the second fixed bottom plate, and the end portion of the tightening mechanism is connected with the actuating sub-mechanism.
The invention also discloses an oil transfer pump assembling method, which adopts the oil transfer pump tightening machine and comprises the following steps:
respectively installing a second plate sleeve and a first plate sleeve on a pump head of an oil transfer pump, limiting the first plate sleeve and the second plate sleeve through a cylindrical positioning pin, installing the pump head in a workpiece matching seat, and installing an oil transfer pump tool assembly on an index plate after the oil transfer pump tool assembly is assembled;
starting the screwing mechanism, controlling the screwing shaft to descend by the cylinder in the second screwing assembly, and realizing the fixation of the oil transfer pump by the matching of the execution sub-mechanism to the bolt at the upper end of the oil transfer pump; the first cylinder drives the first screwing component to move horizontally, and an execution sub-mechanism of the first screwing component is matched with a second plate sleeve of the oil transfer pump and/or a horizontal bolt of the oil transfer pump;
the first tightening assembly and the second tightening assembly simultaneously tighten the bolt;
when the tightening torque reaches the set torque and the tightening is completed, the first tightening assembly and the second tightening assembly return to the initial positions;
the index plate rotates by a set angle;
and repeating the steps until all the oil transfer pumps are screwed up.
Compared with the prior art, the invention has the following beneficial effects,
1. according to the invention, on the premise of ensuring the tightening precision, no manual intervention is required in the tightening process, automatic tightening can be completed, the labor cost is reduced, and the working efficiency is improved.
2. In the process, the first plate sleeve and the second plate sleeve are matched in a nesting mode, and the third positioning part at the tail end of the second plate sleeve can be clamped with the bolt of the oil transfer pump head, so that the clamping mechanism formed by the first plate sleeve and the second plate sleeve has the functions of positioning, clamping and convenient disassembly, and the bolt of the oil transfer pump head can be conveniently screwed.
3. In the invention, the hexagonal prism shape at the outer side of the first section of the first plate sleeve is convenient to be matched with the first screwing shaft mechanism actuator sub-mechanism to transmit torque, namely, in the invention, the bolt screwing is not actually finished through one process, but certain clamping treatment is required to be carried out in advance by using an indexing mechanism, so that the problem of difficulty in screwing due to the fact that the distance between the bolts is too small is solved.
4. In the invention, the offset wrench shaft is used for transmission, and the control on the torque can meet the requirement of the oil transfer pump.
5. According to the invention, the dividing plate is adopted to transfer the oil transfer pump, the oil transfer pump can be accurately transferred, and the pump head of the oil transfer pump is screwed by the first screwing component and the second screwing component according to a preset position.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic structural view of embodiment 2,
FIG. 2 is an enlarged view at A in FIG. 1 showing the positional relationship of the first tightening unit, the second tightening unit and the dial in working examples 2 and 3;
figure 3 is a structural side view of the first tightening assembly of embodiment 2,
figure 4 is a structural elevation view of a first tightening assembly of embodiment 2,
FIG. 5 is a cross-sectional view of the first tightening assembly of example 2 showing the inner structure thereof
Figure 6 is a schematic view of the overall structure of the indexing mechanism in embodiment 1 and embodiment 2,
FIG. 7 is a schematic structural view showing the positional relationship between the oil pump tooling assembly and the first and second plate bushes in examples 1 and 2,
figure 8 is a schematic view of the structure of the first and second sleeves in examples 1 and 2,
fig. 9 is a schematic structural view of a second tightening assembly in embodiment 2.
In the figure, 1, a first tightening assembly, 1-1, a first tightening base, 1-2, a first fixed bottom plate, 1-3, short wiring grooves, 1-4, a floating joint, 1-5, a first air cylinder, 1-6, an air cylinder connecting seat, 1-7, a joint seat, 1-8, a long wiring groove, 1-9, a first sliding block, 1-10, a side plate, 1-11, a first linear sliding rail, 1-12, a drag chain, 1-13, a first outer hexagonal sleeve, 1-14, a detection sensor support, 2, a bias mechanism, 2-1, a wrench shaft, 2-2, a gland, 2-3, a bias precursor, 2-4, a wrench shaft spring, 2-5, a guide post, 2-6, a left-rotating gear, 2-7, a right-rotating gear, 2-8, a left-rotating gear, 2-8, A gear box, 2-9 parts, a three-stage wheel carrier, 2-10 parts, an internal gear ring, 2-11 parts, a planetary reducer, 2-12 parts, a first servo motor, 2-13 parts, a central wheel, 2-14 parts, a planetary wheel, 2-15 parts, a gear box cover plate, 3 parts, an indexing mechanism, 3-1 parts, an indexing disc, 3-2 parts, a first plate sleeve, 3-2-1 parts, a first section outside the first plate sleeve, 3-2-2 parts, a second section outside the first plate sleeve, 3-3 parts, a second plate sleeve, 3-3-1 parts, a first positioning part, 3-3-2 parts, a second positioning part, 3-3-3 parts, a third positioning part, 3-4 parts, a cylindrical positioning pin, 3-5 parts, an oil delivery pump, 3-5-1 parts, a pump head, 3-6 parts and a cylindrical pin hole, 3-7 parts of a clamping seat, 3-8 parts of a pin slot hole, 4 parts of a second screwing component, 4-1 parts of a second cylinder, 4-2 parts of a second servo motor, 4-3 parts of a planetary reducer, 4-4 parts of a third outer hexagonal sleeve, 4-5 parts of a drag chain, 4-6 parts of a second fixed bottom plate, 4-7 parts of a second linear guide rail, 4-8 parts of a vertical shaft supporting plate, 4-9 parts of a vertical shaft bracket, 5 parts of a workbench, 6 parts of a control display unit.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It is also noted that the specific orientations in the following embodiments are based on the drawings to which they refer.
As described in the background art, the present invention is directed to an oil transfer pump tightening machine and an oil transfer pump assembling method, which are capable of automatically rotating an oil transfer pump to a designated station by an indexing mechanism and synchronously tightening horizontal and longitudinal bolts without the involvement of personnel in the tightening process, thereby reducing the labor intensity of work and improving the work efficiency while ensuring the tightening accuracy, in view of the deficiency that the degree of automation of the screw tightening is low when the oil transfer pump body and the oil transfer pump head are assembled in the existing oil transfer pump production process. The invention will now be further described with reference to the accompanying drawings and detailed description.
Example 1
It should be noted that the apparatus disclosed in this embodiment is applied to assembly and production of the oil transfer pump 3-5, and the implementation object of this embodiment is the oil transfer pump 3-5 in the assembly process, which specifically includes the pump head 3-5-1 and the pump body, and this embodiment is to implement connection between the pump head 3-5-1 and the pump body.
Referring to fig. 6 to 8, the present embodiment discloses an indexing mechanism for assembling an oil transfer pump, including an indexing plate 3-1, a first plate sleeve 3-2, a clamping seat 3-7 and a second plate sleeve, where the second plate sleeve is slidably sleeved in the first plate sleeve 3-2, the first plate sleeve 3-2 can reciprocate along an extending direction of the second plate sleeve, and the second plate sleeve can fix a pump head 3-5-1 of the oil transfer pump 3-5;
referring to fig. 6, the index plate 3-1 is a circular plate, and grooves equally divided into circles are carved on the upper surface of the index plate 3-1 to mark the installation position; the circumference of an index plate 3-1 in the embodiment is equally divided into 12 grooves, an included angle formed between each adjacent groove and the circle center of the index plate 3-1 is 30 degrees, clamping seats 3-7 are arranged on the index plate 3-1, specifically, the clamping seats 3-7 in the embodiment comprise 12 grooves, the installation positions of the clamping seats coincide with the 12 grooves of the index plate 3-1, and the clamping seats 3-7 can be used for clamping a fuel delivery pump 3-5 body;
the reciprocating distance of the first plate sleeve 3-2 is longer than the length of a column head of the oil transfer pump 3-5.
Referring to fig. 7 and 8, a first section 3-2-1 at the outer side of the first plate sleeve is hexagonal prism-shaped, a second section 3-2-2 at the outer side of the first plate sleeve is cylindrical, a channel for sleeving the second plate sleeve is formed in the first plate sleeve 3-2, and the channel is formed along the axial direction of the first plate sleeve 3-2; the cross-sectional shape of the channel is formed by splicing two semicircles with different radiuses.
It will be appreciated that the first plate 3-2 is arranged to rotate the first plate 3-2 by a certain external force to tighten the pump head 3-5-1.
The second plate sleeve comprises a first positioning part 3-3-1, a second positioning part 3-3-2 and a third positioning part 3-3-3 which are sequentially connected, the first positioning part 3-3-1 and the second positioning part 3-3-2 are both in a semi-cylindrical shape, the inner diameter of the first positioning part 3-3-1 is larger than that of the second positioning part 3-3-2, and the third positioning part 3-3-3 is an arc-shaped protrusion extending from the straight end face of the second positioning part 3-3-2.
It will be appreciated that the first and second detents 3-3-1, 3-2 of the second sleeve are of equal thickness and equal thickness to the difference in radius of the two different radii of the semi-circles in the cross-section of the channel of the first sleeve 3-2.
Two opposite inner side surfaces of the third positioning portion 3-3-3 are parallel.
It can be understood that the end of the first plate sleeve 3-2 is provided with a cylindrical positioning pin 3-4, the cylindrical positioning pin 3-4 can extend towards the inner side of the first plate sleeve 3-2, and the second plate sleeve is provided with a pin slot hole 3-8 matched with the cylindrical positioning pin 3-4, so that the first plate sleeve 3-2 and the second plate sleeve are prevented from rotating relatively.
It can be understood that the circle center position of the dividing disc 3-1 is connected with a power source, in this embodiment, the power source is preferably a servo motor, so as to realize the rotation of the dividing disc 3-1; alternatively, in other embodiments, the indexing disk 3-1 is an actuating indexing disk 3-1.
It will be appreciated that the clamping shoe 3-7 is a plate having a mounting hole for engaging the oil feed pump 3-5, and that the clamping shoe 3-7 is connected to the index plate 3-1 by a pin.
The concrete cooperation of this embodiment with pump head 3-5-1 and the pump body is that, because the pump head 3-5-1 is a cylinder, it is inconvenient to screw directly, so use the first plate sleeve 3-2 to cup joint in the pump head 3-5-1, and use the cylindrical pin to further fix, the first plate sleeve 3-2 and second plate sleeve can be slipped reciprocally, the sliding distance is greater than the length of the cylindrical head of the oil transfer pump 3-5, in order to realize the disassembling and assembling to the pump head 3-5-1; in order to transmit the tightening force to the bolt behind the pump head 3-5-1 for tightening, two opposite inner side surfaces of the third positioning part 3-3-3 are parallel so as to clamp the bolt behind the pump head 3-5-1, and the hexagonal nut of the first section outside the first plate sleeve 3-2 is shaped so as to transmit torque; the channel of the first specially shaped sleeve 3-2 can receive the pump head 3-5-1 at the same time as the second sleeve.
Example 2
Referring to fig. 1 to 9, the present embodiment discloses a fuel delivery pump tightening machine, which includes a workbench 5, a first tightening unit 1, a second tightening unit 4, and an indexing mechanism 3 for assembling the fuel delivery pump as disclosed in embodiment 1, wherein the workbench 5 is provided with the indexing mechanism 3, the first tightening unit 1 and the second tightening unit 4 are both provided on the workbench 5, and the movement directions of the actuating mechanisms of the first tightening unit 1 and the second tightening unit 4 are perpendicular to each other; the actuating sub-mechanism of the first screwing component 1 can be sleeved on a bolt in the horizontal direction of the oil transfer pump 3-5 of the bolt to be screwed, and the actuating sub-mechanism of the second screwing component 4 can be sleeved on a bolt in the vertical direction of the oil transfer pump 3-5 of the bolt to be screwed;
when the indexing mechanism 3 is rotated, the first tightening unit 1 can be fitted to each first plate of the indexing mechanism 3.
Referring to fig. 1, in the present embodiment, the first tightening mechanism is disposed horizontally, and the second tightening mechanism is disposed vertically.
Referring to fig. 2-4, the first tightening assembly 1 includes a first linear sliding rail 1-11, a first sliding block 1-9, a first cylinder 1-5, a first fixed base plate 1-2 and an actuator mechanism, the first linear sliding rail 1-11 is horizontally disposed, the first fixed base plate 1-2 is mounted above the first sliding block 1-9, the actuator mechanism is mounted on the first fixed base plate 1-2, the rear side of the sliding block is connected to an output shaft of the first cylinder 1-5, the first cylinder 1-5 is fixed to the worktable 5, and the first cylinder 1-5 can push the sliding block to move, so as to drive the actuator mechanism to reciprocate;
the actuating sub-mechanism of the horizontal tightening mechanism comprises a first outer hexagonal sleeve 1-13 and a second outer hexagonal sleeve which respectively correspond to the first plate sleeve 3-2 in the horizontal direction, and a first bolt connected with the body of the oil transfer pump 3-5.
It will be appreciated that, in order to enable the first tightening assembly to apply torque to the first socket 3-2 and the first bolt in a side-to-side direction,
referring to fig. 5, it can be understood that, in order to drive the actuator of the first tightening assembly to move, the first tightening assembly further includes a biasing sub-mechanism 2, the biasing sub-mechanism 2 includes a wrench shaft 2-1, a transmission mechanism and a first power source, the first power source in this embodiment is a first servo motor 2-12, the first servo motor 2-12 is connected to the wrench shaft 2-1 through the transmission mechanism, the wrench shaft 2-1 includes two wrench shafts, the end portions of the two wrench shafts 2-1 are respectively connected to the first outer hexagonal socket 1-13 and the second outer hexagonal socket, and the two wrench shafts 2-1 obtain the power of the first servo motor 2-12 through the transmission mechanism.
Because the distance between the first bolt and the first plate sleeve 3-2 is smaller, the first bolt and the first plate sleeve 3-2 are simultaneously torqued by the first outer hexagonal sleeve 1-13 and the second outer hexagonal sleeve of the same first tightening assembly 1, and power needs to be applied to the first outer hexagonal sleeve 1-13 and the second outer hexagonal sleeve respectively at the moment.
It can be understood that the biasing sub-mechanism 2 is fixed by the first fixing base plate 1-2, and in order to realize the tightening of the small-distance bolt, the tightening force is transmitted to the wrench shaft 2-1 through the left-hand gear 2-6 and the right-hand gear 2-7 in the gear box 2-8, so as to realize the tightening of the small-distance bolt; the gear boxes 2 to 8 and the planetary speed reducer are common means in the prior art, and are not described in detail herein.
Wherein, a section of the wrench shaft 2-1 tightly attached to the outer side of the gear box 2-8 is sleeved with a bias precursor 2-3, a wrench shaft 2-1 spring is arranged between the bias precursor 2-3 and the wrench shaft 2-1, the wrench shaft 2-1 spring is sleeved on the outer side of the wrench shaft 2-1, and two end parts of the wrench shaft 2-1 spring are respectively connected with the bias precursor 2-3 and the wrench shaft 2-1.
It will be appreciated that the offset precursor 2-3 is a sleeve-like member and that the offset precursor 2-3 may be mounted to a member at the outlet of the gearbox 2-8.
Referring to fig. 9, the second tightening unit 4 is located above the indexing mechanism 3, and specifically, the second tightening unit includes a vertical shaft support 4-9, a second linear guide 4-7, a second sliding block, a second fixed base plate 4-6, a second cylinder 4-1 and an actuator mechanism, the second guide is mounted on the vertical shaft support 4-9, the vertical shaft support 4-9 is used to ensure that the second linear guide 4-7 is perpendicular to the horizontal plane, similar to the first tightening unit 1, the second sliding block is mounted and matched with the second linear guide 4-7, the second sliding block is fixedly connected with the second fixed base plate 4-6, the second cylinder 4-1 is mounted above the second fixed base plate 4-6, the second cylinder 4-1 can push the second fixed base plate 4-6 to move along the second linear guide 4-7, and a tightening mechanism is arranged above the second fixed bottom plate 4-6, and the end part of the tightening mechanism is connected with an actuator mechanism.
It will be appreciated that the actuator mechanism comprises a third outer hexagonal sleeve 4-4.
It is understood that the tightening mechanism includes a tightening shaft, a transmission mechanism and a second power source, the second power source in this embodiment is a second servo motor 4-2, the second servo motor 4-2 is connected with the tightening shaft through the transmission mechanism, the tightening shaft includes one, the end of the tightening shaft is connected with a third outer hexagonal sleeve 4-4, and the wrench shaft 2-1 obtains the power of the second servo motor 4-2 through the transmission mechanism.
The transmission mechanism comprises a speed reducer for amplifying or reducing the torque of the second servo motor 4-2, and the connection between the speed reducer and the second servo motor 4-2 and the wrench shaft 2-1 is a common technique in the art and is not described herein.
In the biasing sub-mechanism 2 of the present embodiment, the term "bias" means that the trigger shaft 2-1 and the output shaft of the first servomotor 2-12 are not in a straight line.
Example 3
Embodiment 3 discloses an oil transfer pump assembling method based on embodiment 2, including the steps of:
firstly, respectively installing a second plate sleeve and a first plate sleeve 3-2 on a pump head 3-5-1, limiting the first plate sleeve 3-2 and the second plate sleeve by a cylindrical positioning pin 3-4, installing the pump head 3-5-1 in a workpiece matching seat, fixing by a cylindrical pin, and installing the oil transfer pump 3-5 on an index plate 3-1 after completing a tool assembly of the oil transfer pump 3-5;
starting a screwing mechanism, firstly controlling a screwing shaft to descend by a cylinder in a second screwing component 4, matching bolts at the upper end of a fuel delivery pump 3-5 (namely bolts in the vertical direction of the fuel delivery pump 3-5) through a third outer hexagonal sleeve 4-4 to realize the fixation of the fuel delivery pump 3-5, driving a first screwing component 1 to move horizontally by a first cylinder 1-5, and matching a second plate sleeve of the fuel delivery pump 3-5 and/or horizontal bolts of the fuel delivery pump 3-5 through a first outer hexagonal sleeve 1-13 and/or a second outer hexagonal sleeve;
the first tightening assembly 1 and the second tightening assembly 4 simultaneously tighten bolts in the horizontal direction, wherein the first servo motor 2-12 drives the planetary reducer 2-11 and drives the first outer hexagonal sleeve 1-13 and/or the second outer hexagonal sleeve through the gear box 2-8 to tighten; in the vertical direction, the second servo motor 4-2 drives a speed reducer to drive the third outer hexagonal sleeve 4-4 to complete screwing;
when the tightening torque reaches the target torque, and it is confirmed that the tightening is completed, the first tightening assembly 1 and the second tightening assembly 4 are returned to the initial positions,
the dividing plate 3-1 rotates 30 degrees;
and repeating the steps until all the oil transfer pumps 3-5 are screwed up.
When the screwing work is carried out, the tool for the oil transfer pump 3-5 and the tool for the new oil transfer pump 3-5 which are screwed up can be installed at the same time, and the uninterrupted screwing work is kept.
It can be understood that, in a specific implementation process, a detection sensor, specifically, an infrared sensor or a CCD, is further installed at the bottom side of the first tightening base 1-1 of the first tightening assembly 1, and can detect whether the oil delivery pump 3-5 is present at the current station, and when the oil delivery pump 3-5 is present, the tightening process is maintained; if the oil transfer pump 3-5 is not available or a special condition occurs, the work is automatically stopped.
Special cases include other objects on the indexing mechanism 3 than the oil transfer pumps 3-5.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An indexing mechanism for assembling an oil transfer pump is characterized by comprising an indexing disc, a first plate sleeve, a clamping seat and a second plate sleeve, wherein the second plate sleeve is slidably sleeved in the first plate sleeve, the first plate sleeve can reciprocate along the extension direction of the second plate sleeve, the reciprocating distance of the first plate sleeve is longer than the length of a column head of the oil transfer pump, and the second plate sleeve can fix a pump head of the oil transfer pump; the index plate is installed in a plurality of clamp seats, and the clamp seat can be used for pressing from both sides tight fuel delivery pump body.
2. The indexing mechanism for assembling an oil transfer pump according to claim 1, wherein the plurality of clamping seats are arranged in an array around the center of the indexing plate, and the array is circumferentially arranged on the indexing plate.
3. The indexing mechanism for assembling an oil transfer pump according to claim 1, wherein the first section of the outer side of the first plate sleeve is hexagonal prism-shaped, the second section of the outer side of the first plate sleeve is cylindrical, a passage for receiving the second plate sleeve is formed in the first plate sleeve, and the passage is formed along the axial direction of the first plate sleeve; the cross-sectional shape of the channel is formed by splicing two semicircles with different radiuses.
4. The indexing mechanism for assembling the fuel delivery pump according to claim 1, wherein the second plate cover includes a first positioning portion, a second positioning portion, and a third positioning portion, which are connected in series, the first positioning portion and the second positioning portion are each in a semi-cylindrical shape, an inner diameter of the first positioning portion is larger than an inner diameter of the second positioning portion, and the third positioning portion is an arc-shaped protrusion from which a straight end surface of the second positioning portion extends.
5. The indexing mechanism for assembling the fuel delivery pump according to claim 4, wherein the first positioning portion and the second positioning portion of the second plate sleeve are of equal thickness and have a thickness equal to a difference in radius of two semicircles of different radii in a cross section of the passage of the first plate sleeve;
two opposite inner side surfaces of the third positioning portion are parallel.
6. An oil transfer pump tightening machine is characterized by comprising a workbench, a first tightening assembly, a second tightening assembly and the indexing mechanism for oil transfer pump assembly according to any one of the embodiments 1-5, wherein the workbench is provided with the indexing mechanism, the first tightening assembly and the second tightening assembly are both arranged on the workbench, and the movement directions of the actuating mechanism of the first tightening assembly and the actuating mechanism of the second tightening assembly are perpendicular to each other; the actuating sub-mechanism of the first tightening assembly can be sleeved on a bolt in the horizontal direction of the oil transfer pump of the bolt to be tightened, and the actuating sub-mechanism of the second tightening assembly can be sleeved on a bolt in the vertical direction of the oil transfer pump of the bolt to be tightened;
when the indexing mechanism rotates, the first tightening assembly can be sleeved with each first plate sleeve of the indexing mechanism.
7. The fuel delivery pump screwing machine of claim 6, wherein the first screwing assembly comprises a first linear slide rail, a first slide block, a first air cylinder, a first fixing bottom plate and an actuator sub-mechanism, the first linear slide rail is provided with the first slide block, the first fixing bottom plate is arranged above the first slide block, the first fixing bottom plate is provided with a biasing sub-mechanism, the front end of the biasing sub-mechanism is connected with the actuator sub-mechanism, the rear side of the first slide block is connected with the output shaft of the first air cylinder, the first air cylinder is fixed on the workbench, and the first air cylinder can push the first slide block to move so as to drive the actuator sub-mechanism to reciprocate.
8. The fuel delivery pump tightening machine according to claim 7, wherein the actuator sub-mechanism includes a first outer hexagonal sleeve and a second outer hexagonal sleeve;
the bias sub-mechanism comprises two pulling shafts, a transmission mechanism and a first power source, the servo motors are connected with the pulling shafts through the transmission mechanism, the end parts of the two pulling shafts are respectively connected with the first outer hexagonal sleeve and the second outer hexagonal sleeve, and the two pulling shafts obtain power of the servo motors through the transmission mechanism.
9. The fuel delivery pump tightening machine according to claim 6, wherein the second tightening mechanism includes a vertical shaft bracket, a second linear guide, a second slider, a second stationary base plate, a second cylinder, and an actuator mechanism, the second linear guide being mounted to the vertical shaft bracket, the second slider being fittingly mounted to the second linear guide, the slider being fixedly coupled to the tightening shaft fixing plate, the second cylinder being mounted above the second stationary base plate, the second cylinder being capable of pushing the second stationary base plate to move along the second linear guide, the tightening mechanism being mounted above the second stationary base plate, an end of the tightening mechanism being coupled to the actuator mechanism.
10. The method for assembling a fuel delivery pump, which employs the tightening machine for a fuel delivery pump according to any one of claims 6 to 9, comprising the steps of:
respectively installing a second plate sleeve and a first plate sleeve on a pump head of an oil transfer pump, limiting the first plate sleeve and the second plate sleeve through a cylindrical positioning pin, installing the pump head in a workpiece matching seat, and installing an oil transfer pump tool assembly on an index plate after the oil transfer pump tool assembly is assembled;
starting the screwing mechanism, controlling the screwing shaft to descend by the cylinder in the second screwing assembly, and realizing the fixation of the oil transfer pump by the matching of the execution sub-mechanism to the bolt at the upper end of the oil transfer pump; the first cylinder drives the first screwing component to move horizontally, and an execution sub-mechanism of the first screwing component is matched with a second plate sleeve of the oil transfer pump and/or a horizontal bolt of the oil transfer pump;
the first tightening assembly and the second tightening assembly simultaneously tighten the bolt;
when the tightening torque reaches the set torque and the tightening is completed, the first tightening assembly and the second tightening assembly return to the initial positions;
the index plate rotates by a set angle;
and repeating the steps until all the oil transfer pumps are screwed up.
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| CN201910925278.2A CN110587279B (en) | 2019-09-27 | 2019-09-27 | Indexing mechanism for assembling fuel delivery pump, fuel delivery pump tightening machine and fuel delivery pump assembling method |
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| CN110587279B (en) | 2020-11-06 |
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Address after: Huai Village Street Huaiyin District of Ji'nan city of Shandong Province, No. 73 250022 Patentee after: Shandong CRRC TONGLIDA Intelligent Equipment Co.,Ltd. Address before: Huai Village Street Huaiyin District of Ji'nan city of Shandong Province, No. 73 250022 Patentee before: SHANDONG CRRC TONGLIDA INTELLIGENT MACHINERY Co.,Ltd. |
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Inventor after: Huang Bingqing Inventor after: Li Yunpeng Inventor after: Shen Yuzu Inventor after: Lin Chunzhu Inventor after: Wang Yinshu Inventor before: Jiang Ning Inventor before: Huang Bingqing Inventor before: Li Yunpeng Inventor before: Shen Yuzu Inventor before: Lin Chunzhu Inventor before: Wang Yinshu |