CN115229534A

CN115229534A - Pipe joint turning clamp and pipe joint turning method

Info

Publication number: CN115229534A
Application number: CN202211019158.4A
Authority: CN
Inventors: 赵时军; 彭利; 成焯
Original assignee: Aecc Hunan South Astronautics Industry Co ltd
Current assignee: Aecc Hunan South Astronautics Industry Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-10-25

Abstract

A pipe joint lathing fixture, comprising: the chuck is detachably connected with a workbench of the machine tool; the positioning mounting seat is arranged on the chuck; the pressing plate is movably connected with the positioning mounting seat, and the pipe joint is clamped and fixed between the pressing plate and the positioning mounting seat along a first direction; the two guide plates are arranged at the two sides of the pipe joint and are in sliding connection with the chuck along a second direction, and the second direction is crossed with the first direction; the two push rods are in threaded connection with the chuck along the second direction and are in transmission connection with the guide plate respectively. Therefore, when the size of the pipe joint in the second direction is changed, the guide plate can be driven to move along the second direction by adjusting the push rod, and the clamping requirements of the pipe joints with different sizes are met. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

Description

Pipe joint turning clamp and pipe joint turning method

Technical Field

The invention relates to the technical field of machining, in particular to a pipe joint turning clamp and a pipe joint turning method.

Background

The pipeline system of the aircraft engine plays a very important role in the aircraft engine, the pipe joint is an important part for ensuring the sealing connection of the pipeline system, the pipeline system of the modern aircraft engine is more and more complex in layout, and the types of the pipe joints required to be used are more and more diverse.

At present, the existing pipe joint turning clamp is not strong in universality and difficult to meet clamping requirements of various pipe joints in various sizes. Therefore, the conventional model is to design a set of lathe-work fixture for the pipe joint, which results in high fixture design and manufacturing costs. Moreover, different clamps need to be replaced when different pipe joints are machined, the clamps are installed on the working table surface of the machine tool and are complex to operate, workers are frequently replaced, time and labor are wasted, and the machining efficiency is affected. In addition, after the lathing fixtures of various pipe joints are used up, the pipe joints need to be stored in a storehouse, and a large amount of space is occupied. And most of the clamps are similar and different, warehouse managers are easy to take and place wrongly, and management is difficult. Therefore, it is urgent to need a coupling car worker's anchor clamps, can be suitable for the centre gripping demand of the coupling of multiple size, model to reduction in production cost alleviates workman's work burden, improves work efficiency, is convenient for carry out warehouse and deposits and manage.

Disclosure of Invention

In view of the above problems in the prior art, the present application provides a pipe joint turning jig and a pipe joint turning method to can be suitable for the clamping requirements of pipe joints of various sizes and models, thereby reducing production cost, reducing the workload of workers, improving work efficiency, and facilitating warehouse storage and management.

This application first aspect provides a coupling joint lathe work anchor clamps, includes: the chuck can be detachably connected with a workbench of a machine tool; the positioning installation seat is arranged on the chuck; a positioning mandrel fixed on the positioning installation seat along a first direction, wherein one end of the positioning mandrel can be inserted into the pipe joint; the pressing plate is movably connected with the positioning mounting seat, and the pipe joint is clamped and fixed between the pressing plate and the positioning mounting seat along the first direction; the two guide plates are arranged at the two sides of the pipe joint and are in sliding connection with the chuck along a second direction, and the second direction is crossed with the first direction; the push rods are arranged and are in threaded connection with the chuck along the second direction, and the two push rods are in transmission connection with the guide plate respectively.

By the above, after the chuck is installed on the workbench of the machine tool, the pipe joint can be placed on the positioning installation seat, and then the pipe joint is clamped and fixed in the first direction by the pressing plate. And the guide plate is pushed by the push rod to slide on the chuck along the second direction, so that the pipe joint is clamped and fixed in the second direction. Therefore, when the size of the pipe joint in the second direction is changed, the guide plate can be driven to move along the second direction by adjusting the push rod, and the clamping requirements of the pipe joints with different sizes are met. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

In addition, the positioning mandrel is arranged on the positioning installation seat, so that when the pipe joint is placed on the positioning installation seat, the pipe joint can be positioned through the positioning mandrel, and the operation of workers is facilitated. Therefore, the workload of workers can be reduced, and the working efficiency is improved. When the size of the pipe joint changes, the positioning mandrel on the positioning installation seat can be replaced. Therefore, the positioning mandrel can be replaced to adapt to the positioning requirements of different pipe joints. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

As a possible implementation manner of the first aspect, the method further includes: the first bolt penetrates through the middle position of the pressure plate, and the end part of the first bolt is in threaded connection with the positioning mounting seat; the supporting rod and the pipe joint are respectively located on two sides of the first bolt, one end of the supporting rod is in threaded connection with the positioning installation seat, and the other end of the supporting rod is abutted to the pressing plate.

By last, through setting up bracing piece and coupling respectively in the both sides position of first bolt, through bracing piece and clamp plate butt to make the clamp plate form lever structure on first bolt, make the clamp plate can fix the coupling centre gripping on the location mount pad. Because first bolt and bracing piece and location mount pad threaded connection, when the size of coupling on the first direction changed, can be through adjusting the length that first bolt and bracing piece stretch out on the location mount pad to make the centre gripping demand of the not unidimensional coupling of clamp plate adaptation. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

As a possible implementation manner of the first aspect, a kidney-shaped hole is provided in the pressure plate, the kidney-shaped hole extends in a direction approaching to/away from the pipe joint, and the first bolt is inserted through the kidney-shaped hole.

From above, by providing the kidney-shaped hole in the rock plate, the pressing plate can be moved on the first bolt in a direction to approach/depart from the pipe joint. From this, when the position of the one end that is connected with the clamp plate looks butt on the coupling changes, can be through adjusting the clamp plate, make the clamp plate can adapt the not centre gripping demand of unidimensional coupling. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

As a possible implementation manner of the first aspect, the method further includes: a positioning mandrel disposed on the positioning mount in the first direction, the positioning mandrel being insertable into the pipe joint toward an end of the pipe joint.

By last, through setting up the location mandrel on the location mount pad, when laying the coupling on the location mount pad, can fix a position the coupling through the location mandrel to make things convenient for the workman to operate. Therefore, the workload of workers can be reduced, and the working efficiency is improved.

As a possible implementation manner of the first aspect, the positioning mandrel is provided with a first shaft section towards one end of the pipe joint, an outer diameter of the first shaft section is matched with an inner diameter of the pipe joint towards one end of the positioning installation seat, and a length of the first shaft section is matched with a distance from an end surface of the pipe joint towards one end of the positioning installation seat to a flow passage intersection of the pipe joint.

Therefore, when the size of the pipe joint changes, the positioning mandrel on the positioning installation seat can be replaced, and the size of the first shaft section on the positioning mandrel is matched with that of the pipe joint. Therefore, the positioning mandrel can be replaced to adapt to the positioning requirements of different pipe joints. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

As a possible implementation manner of the first aspect, the positioning mandrel further includes a second shaft section, which is connected to the first shaft section and is coaxially disposed with the first shaft section; the outer diameter of the second shaft section is larger than the outer diameter of one end, facing the positioning installation seat, of the pipe joint.

By the above, the outer diameter of the second shaft section is larger than the outer diameter of the pipe joint towards one end of the positioning installation seat, so that the second shaft section can provide enough support for the pipe joint after the first shaft section is inserted into the pipe joint, and the stability of the pipe joint can be improved.

As a possible implementation manner of the first aspect, the method further includes: the two guide seats are detachably connected with the chuck; the guide seat is provided with a guide groove, and the guide groove is in a through groove shape and extends along the second direction; the two guide plates are respectively arranged in the guide grooves of the two guide seats, and the guide plates are matched with the guide grooves in shape.

By last, can make the baffle more stable when sliding along the second direction through the cooperation between baffle and the guide way to can improve the baffle and hold fixed stability to the coupling joint.

As a possible implementation manner of the first aspect, the push rod is connected with the guide seat through a thread, a connecting portion is arranged at one end of the push rod facing the guide plate, and the connecting portion is spherical; the baffle orientation push rod one end is provided with the spread groove, the spread groove is logical groove form, with the shape looks adaptation of connecting portion.

By last, provide the transmission connected mode of push rod and baffle, cooperate through globular connecting portion and spread groove. Therefore, the push rod can be conveniently connected with the guide plate, and when the push rod rotates to adjust, the push rod cannot influence the connection with the guide plate, so that the guide plate can be conveniently driven to move along the second direction.

As a possible implementation manner of the first aspect, a plurality of adjusting holes are respectively formed in positions, located on two sides of the positioning mounting seat, of the chuck, and the adjusting holes in the positions on the two sides are respectively arranged along the first direction; the guide seat is connected with the adjusting hole through a second bolt.

By last, can lay a plurality of regulation holes along the first direction through the corresponding both sides at the guide holder to can be when the height of the centre gripping position of coupling in the second direction changes, can fix the guide holder through selecting different regulation holes, thereby can adjust the position of guide holder. Therefore, the lathe fixture can meet the clamping requirements of pipe joints with different sizes, the production cost is reduced, the workload of workers is reduced, the working efficiency is improved, and warehouse storage and management are facilitated.

As a possible implementation manner of the first aspect, the first direction is perpendicular to the second direction.

Therefore, the pipe joint can be fixed in the vertical direction, and the stability of the pipe joint fixation is improved.

As a possible implementation manner of the first aspect, the method further includes: the balancing weight is arranged on the chuck, so that the center of gravity of the lathe fixture is close to the center of the chuck.

By last, through set up the balancing weight on the chuck to can make the weight on the chuck more even, and then add man-hour more balanced to the coupling on the lathe work anchor clamps.

As a possible implementation manner of the first aspect, two counter weight blocks are provided, and are disposed at positions far away from the positioning mounting seat and located at two sides of the pressing plate.

By last, through setting up two balancing weights, can make the coupling be located balancing weight and location mount pad intermediate position to can fix the coupling on the car worker anchor clamps back, make the focus of car worker anchor clamps be close to the center of chuck.

The present application provides in a second aspect a pipe joint turning method for fixing a pipe joint using a turning jig, including: acquiring size information of the pipe joint; selecting and determining a positioning mandrel of the lathe fixture according to the size information, wherein different positioning mandrels position the pipe joint on the lathe fixture along a first direction; fixing the pipe joint in the first direction; and fixing the pipe joint in a second direction, wherein the second direction is crossed with the first direction.

By the above, by arranging the positioning mandrel, the pipe joint can be positioned through the positioning mandrel, so that the operation of workers is facilitated. When the size of the pipe joint changes, the positioning mandrel on the positioning installation seat can be replaced according to the size of the pipe joint. Therefore, the positioning mandrel can be replaced to adapt to the positioning requirements of different pipe joints. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

As a possible implementation manner of the second aspect, the fixing the pipe joint in the second direction specifically includes: and determining the adjusting holes for installing the guide plates of the turning fixture in the plurality of adjusting holes of the turning fixture according to the size information, wherein the plurality of adjusting holes are distributed along the first direction, and the number of the guide plates is two, and the two guide plates are used for clamping and fixing the pipe joint in the second direction.

By the above, the adjusting holes can be selected according to the sizes of the pipe joints, so that the position of the guide plate can be adjusted, the guide plate can be adapted to the pipe joints with different sizes, and the pipe joints can be clamped and fixed in the second direction. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

These and other aspects of the invention will be apparent from and elucidated with reference to the embodiment(s) described hereinafter.

Drawings

The various features and the connections between the various features of the present invention are further described below with reference to the attached figures. The figures are exemplary, some features are not shown to scale and some of the figures may omit features customary in the art to which this application relates and which are not essential to the application or show additional features which are not essential to the application, the combination of features shown in the figures is not intended to limit the application. In addition, the same reference numerals are used throughout the specification to designate the same components. The specific drawings are illustrated as follows:

FIG. 1 is a schematic structural diagram of a turning fixture in an embodiment of the present application;

FIG. 2 is a schematic structural view of the first clamping mechanism in FIG. 1;

FIG. 3 is a schematic view of the positioning mount of FIG. 2;

FIG. 4 is a schematic view of the positioning mandrel of FIG. 2;

FIG. 5 is a schematic structural view of the second clamping mechanism in FIG. 1;

FIG. 6 is an enlarged sectional view of a portion of the second clamping mechanism of FIG. 5;

FIG. 7 is a schematic structural view of the guide seat in FIG. 6;

FIG. 8 is a schematic structural view of the guide plate of FIG. 5;

FIG. 9 is a schematic view of the connecting socket shown in FIG. 5;

fig. 10 is a flowchart of a pipe joint turning method in the embodiment of the present application.

Description of the reference numerals

10 turning a fixture; 20 pipe joints; 100 chucks; 110 a bushing; 120 adjustment holes; 200 a first clamping mechanism; 210 positioning the mounting seat; 211 a first mounting hole; 212 second mounting holes; 213 third mounting holes; 214 reinforcing ribs; 220, pressing a plate; 230 a first bolt; 240 supporting the rods; 241 a first fixing nut; 250 positioning the mandrel; 251 a first shaft segment; 252 a second shaft section; 253 third shaft segment; 254 a fourth shaft segment; 255 a second fixing nut; 300 a second clamping mechanism; 310, a guide plate; 311 connecting grooves; 320 a push rod; a connecting portion 321; 330 a guide seat; 331 a guide groove; 332 a first threaded hole; 334 a second threaded hole; 335 a third bolt; 336 third threaded hole; 340 a connecting seat; 341 connecting hole; 342 a fourth bolt; 343 a fourth threaded hole; 350 a second bolt; 360 cover plate; 400 balancing weight.

Detailed Description

The terms "first, second, third and the like" or "module a, module B, module C and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, it being understood that specific orders or sequences may be interchanged where permissible to effect embodiments of the present application in other than those illustrated or described herein.

The term "comprising" as used in the specification and claims should not be construed as being limited to the contents listed thereafter; it does not exclude other elements. It should therefore be interpreted as specifying the presence of the stated features, integers or components as referred to, but does not preclude the presence or addition of one or more other features, integers or components, and groups thereof. Thus, the expression "an apparatus comprising the devices a and B" should not be limited to an apparatus consisting of only the components a and B.

Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment, but may. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments, as would be apparent to one of ordinary skill in the art from this disclosure.

Next, the specific structure of the lathe-clamping tool 10 for the pipe joint 20 in the embodiment of the present application will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a lathe fixture 10 in an embodiment of the present application; fig. 2 is a schematic structural diagram of the first clamping mechanism 200 in fig. 1. As shown in fig. 1 and 2, the pipe joint 20 in the embodiment of the present invention may be, for example, a cross-shaped four-way joint shown in fig. 2, a T-shaped three-way joint, or an L-shaped two-way joint, which is not limited to this. The use of the turning tool 10 of the present embodiment enables the coupler 20 to be secured to a machine tool so that the coupler 20 may be driven to rotate with the turning tool 10 to enable the tool to internally, externally thread or otherwise machine the coupler 20.

The turning jig 10 in the embodiment of the present application includes: the chuck 100, the first clamping mechanism 200 and the second clamping mechanism 300. The chuck 100 may be a circular disk-shaped member, the center of the chuck 100 is provided with a bushing 110, the chuck 100 may be detachably mounted on a table of a machine tool through the bushing 110, and the machine tool may drive the chuck 100 to rotate around the axis of the chuck 100. The first clamping mechanism 200 and the second clamping mechanism 300 are disposed on the chuck 100, the first clamping mechanism 200 clamps and fixes the tube adaptor 20 in the first direction X, and the second clamping mechanism 300 clamps and fixes the tube adaptor 20 in the second direction Y. Specifically, the first direction X and the second direction Y may be perpendicular to each other, so as to improve the stability of clamping the pipe joint 20. The first direction X may be a vertical direction and the second direction Y may be a horizontal direction. Alternatively, the first direction X and the second direction Y may be at different angles that are arranged crosswise to meet the clamping requirements of the pipe joints 20 with different shapes and sizes. After the first clamping mechanism 200 and the second clamping mechanism 300 clamp and fix the pipe joint 20 in the first direction X and the second direction Y, respectively, the axis of the end of the pipe joint 20 to be processed coincides with the axis of the chuck 100. Therefore, after the machine tool drives the chuck 100 and the pipe joint 20 to rotate, the tool can be controlled to machine the end of the pipe joint 20 to be machined.

As shown in fig. 1 and 2, the first clamping mechanism 200 includes a positioning mounting base 210, a pressing plate 220, a first bolt 230 and a supporting rod 240. Wherein, location mount pad 210 can be through fixed the setting on chuck 100 of modes such as welding or bolt fastening, can also set up strengthening rib 214 between location mount pad 210 and chuck 100 to improve the fastness between location mount pad 210 and the chuck 100. Specifically, a rib may be disposed on a surface of the positioning mounting seat 210 facing away from the pressing plate 220 to increase a force that the positioning mounting seat 210 can bear when the pressing plate 220 presses the positioning mounting seat 210. The positioning mount 210 may be vertically disposed on the chuck 100, and the perpendicularity between the positioning mount 210 and the chuck 100 may be set to 0.02mm. The first bolt 230 is inserted through the middle of the pressure plate 220, and the end of the first bolt 230 is in threaded connection with the positioning and mounting seat 210. The support rod 240 and the pipe joint 20 are respectively located at two sides of the first bolt 230, one end of the support rod 240 is in threaded connection with the positioning installation seat 210, and the other end of the support rod 240 abuts against the pressing plate 220. Specifically, a groove is formed in the lower surface of the pressing plate 220, and the bottom of the groove is arc-shaped, that is, the depth of the groove at the middle line of the pressing plate is greater than the depths of the grooves at other positions. The other end of the support rod 240 extends into the groove, and after the support rod is abutted against the pressing plate 220, the support rod 240 slides to the middle position of the bottom of the groove because the bottom of the groove is arc-shaped. Thereby, the stability of the position between the supporting rod 240 and the pressing plate 220 can be improved.

In this way, the support rod 240 and the pipe joint 20 are respectively disposed at both sides of the first bolt 230, and the support rod 240 abuts against the pressing plate 220, so that the pressing plate 220 forms a lever structure on the first bolt 230, and the pressing plate 220 can clamp and fix the pipe joint 20 to the positioning and mounting seat 210. Specifically, the first bolt 230 may be adjusted according to the size of the pipe joint 20, such that the first bolt 230 is flush with the end of the pipe joint 20 facing the pressure plate 220. One end of the pressing plate 220 is pushed by the supporting rod 240 to move towards the direction away from the positioning installation seat 210, so that the pressing plate 220 rotates on the first bolt 230, the other end of the pressing plate 220 abuts against the pipe joint 20, and the pipe joint 20 is pressed towards the direction close to the positioning installation seat 210. Due to the fact that the first bolt 230 and the supporting rod 240 are in threaded connection with the positioning installation seat 210, when the size of the pipe joint 20 in the first direction X changes, the length of the first bolt 230 and the supporting rod 240 extending out of the positioning installation seat 210 can be adjusted, and therefore the pressing plate 220 can be matched with clamping requirements of pipe joints 20 with different sizes. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

Further, a kidney-shaped hole (both ends are semi-circular arcs, and the middle is a through hole parallel to a plane, not shown) may be formed in the pressure plate 220, the kidney-shaped hole extends in a direction approaching to/separating from the pipe joint 20, and the first bolt 230 is inserted into the kidney-shaped hole. Thus, the pressing plate 220 is movable on the first bolt 230 in a direction approaching/departing from the pipe joint 20 by providing a kidney-shaped hole in the rock plate. Therefore, when the position of the end of the pipe joint 20, which abuts against the pressure plate 220, is changed, the pressure plate 220 can be adjusted to meet the clamping requirements of pipe joints 20 with different sizes. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

Fig. 3 is a schematic structural diagram of the positioning mount 210 in fig. 2. As shown in fig. 2 and 3, the positioning and mounting base 210 is provided with a first mounting hole 211, a second mounting hole 212, and a third mounting hole 213 along a direction perpendicular to the chuck 100. The first, second and third mounting

holes

211, 212 and 213 are gradually increased in length from the chuck 100. One end of the support rod 240 is screw-coupled to the first mounting hole 211 so that the support rod 240 can be adjusted in the first direction X by its protruding height on the positioning holder 210. After the support rod 240 is adjusted, the first fixing nut 241 may be screwed on the support rod 240, so as to improve the firmness between the support rod 240 and the positioning and mounting seat 210. The first bolt 230 is threadedly coupled to the second mounting hole 212, such that the first bolt 230 can be adjusted in the first direction X on the positioning mounting base 210 to extend to a height, and thus the height of the pressing plate 220 can be adjusted. The third mounting hole 213 is used for mounting a positioning spindle 250, which will be described later, and will not be described in detail herein.

Fig. 4 is a schematic structural view of the positioning mandrel 250 in fig. 2. As shown in fig. 2 and 4, the first clamping mechanism 200 further includes a positioning mandrel 250, and the positioning mandrel 250 includes a first shaft segment 251, a second shaft segment 252, a third shaft segment 253, and a fourth shaft segment 254. The first shaft segment 251, the second shaft segment 252, and the third shaft segment 253 are coaxially disposed with the fourth shaft segment 254, and are connected in sequence. The outer diameter of the third shaft segment 253 is matched with the inner diameter of the third mounting hole 213, so that the third shaft segment 253 can be inserted into the third mounting hole 213 to be in interference fit with the third mounting hole 213, and the interference of the third shaft segment 253 and the third mounting hole 213 is 0.02mm at most. The fourth shaft section 254 has an outer diameter smaller than that of the third shaft section 253, and an outer thread is formed on an outer circumferential surface of the fourth shaft section 254, so that the second fixing nut 255 can be mounted on the fourth shaft section 254 after the third shaft section 253 is inserted into the third mounting hole 213, thereby fixing the pointing shaft section to the third mounting hole 213 more firmly.

The outer diameter of the first shaft section 251 is matched with the inner diameter of the end of the pipe joint 20 facing the positioning installation seat 210, and the length of the first shaft section 251 is matched with the distance from the end face of the end of the pipe joint 20 facing the positioning installation seat 210 to the intersection point of the flow passage in the pipe joint 20. The shoulder between the first shaft segment 251 and the second shaft segment 252 may contact the end of the coupler 20 to position the coupler 20 in the first direction X. The outer diameter of the second shaft section 252 is larger than the outer diameters of the first shaft section 251 and the third shaft section 253, and the outer diameter of the second shaft section 252 may be set larger than the outer diameter of the end of the pipe joint 20 facing the positioning mount 210. So that the second shaft section 252 can provide sufficient support for the pipe joint 20 after the first shaft section 251 is inserted into the pipe joint 20, thereby improving the stability of the pipe joint 20.

Specifically, a plurality of types and sizes of positioning spindles 250 may be provided according to different types and sizes of pipe joints 20. Therefore, when the model and the size of the pipe joint 20 are changed, the pipe joint 20 can be conveniently positioned and fixed by replacing the positioning mandrel 250 with the corresponding model and the corresponding size.

FIG. 5 is a schematic structural view of the second clamping mechanism 300 of FIG. 1; FIG. 6 is an enlarged sectional view of a portion of the second clamping mechanism 300 shown in FIG. 5; fig. 7 is a schematic structural view of the guide holder 330 in fig. 6; FIG. 8 is a schematic structural view of the guide plate 310 of FIG. 5; fig. 9 is a schematic structural diagram of the connecting seat 340 in fig. 5. As shown in fig. 5 to 9, the second clamping mechanism 300 in the embodiment of the present application includes two guide plates 310 and a push rod 320, and the two guide plates 310 are disposed at two sides of the pipe joint 20 and slidably connected to the chuck 100 along the second direction Y. Specifically, the formation of the guide plate 310 may be set to 40mm to allow the second clamping mechanism 300 to fit more sized pipe joints 20. The center lines of the two guide plates 310 may be coaxial with the intersection of the flow passages in the pipe fitting 20, so that the two guide plates 310 are more stable when clamping the pipe fitting 20. The two push rods 320 are provided, the two push rods 320 are in threaded connection with the chuck 100 along the second direction Y, and the two push rods 320 are in transmission connection with one guide plate 310 respectively.

From above, the guide plate 310 is pushed by the push rod 320 to slide on the chuck 100 in the second direction Y, thereby clamping and fixing the coupling 20 in the second direction Y. Therefore, when the size of the pipe joint 20 in the second direction Y changes, the guide plate 310 can be driven to move along the second direction Y by adjusting the push rod 320, so as to adapt to the clamping requirements of pipe joints 20 with different sizes. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

The second clamping mechanism 300 of the embodiment of the present application as shown in fig. 5 to 8 further includes two guide holders 330, and the two guide holders 330 are detachably connected to the chuck 100. The guide holder 330 is a rectangular block-shaped member, a guide groove 331 is provided on an end surface of one end of the guide holder 330, and the guide groove 331 is a through groove extending in the second direction Y. The end face of the other end of the guide holder 330 is provided with a first threaded hole 332, and the number of the first threaded holes 332 may be four, and four corners of the end face of the other end of the guide holder 330 correspond to the adjustment holes 120, so that after the first threaded hole 332 is aligned with the adjustment holes 120 on the chuck 100, the guide holder 330 is fixed on the chuck 100 by the second bolt 350 penetrating through the adjustment hole 120 and being in threaded connection with the first threaded hole 332. The two guide plates 310 are respectively disposed in the guide grooves 331 of the two guide holders 330, and the guide plates 310 are adapted to the shape of the guide grooves 331. The guide plate 310 may slide along the guide groove 331, and a fitting gap of the guide plate 310 and the guide groove 331 may be set to 0.01mm. The cover plate 360 can be further disposed at the notch position of the guide groove 331, the second threaded hole 334 is further disposed at a position adjacent to the guide groove 331 on the end face of one end of the guide holder 330, and the cover plate 360 can be fixed on the guide holder 330 by the third bolt 335 in threaded connection with the second threaded hole 334, so that the guide plate 310 is fixed in the guide groove 331, the guide plate 310 can only slide along the extending direction of the guide groove 331, and the guide plate 310 is prevented from being separated from the guide groove 331. Accordingly, the guide plate 310 can be more stably slid in the second direction Y by the engagement between the guide plate 310 and the guide groove 331, and the stability of the clamping and fixing of the guide plate 310 to the coupling 20 can be improved. The guiding seat 330 is further provided with a third threaded hole 336 for fixedly connecting with a connecting seat 340 described below.

As shown in fig. 5, 6 and 9, the second clamping mechanism 300 in the embodiment of the present application further includes a connecting seat 340. The connecting base 340 is L-shaped as a whole, a connecting hole 341 is formed in a position corresponding to the third threaded hole 336 on an end surface of one end of the connecting base 340, and a fourth bolt 342 may pass through the connecting hole 341 and then be threadedly connected to the third threaded hole 336, so that the connecting base 340 is fixed to the guide base 330. A fourth threaded hole 343 is formed in the connecting seat 340 at a position corresponding to the guide plate 310, and after the connecting seat 340 is fixedly disposed on the guide seat 330, the push rod 320 can be in threaded connection with the fourth threaded hole 343 formed in the connecting seat 340. The push rod 320 has a connection portion 321 at one end facing the guide plate 310, and the connection portion 321 is spherical. The end of the guide plate 310 facing the push rod 320 is provided with a connecting slot 311, and the connecting slot 311 is in a through slot shape and is matched with the shape of the connecting portion 321. Therefore, the ball-shaped connecting portion 321 is engaged with the connecting slot 311, the push rod 320 can be conveniently connected with the guide plate 310, and the push rod 320 does not affect the connection with the guide plate 310 when rotating for adjustment, so that the guide plate 310 can be conveniently driven to move along the second direction Y.

As shown in fig. 1, a plurality of adjusting holes 120 are respectively disposed at two side positions of the positioning and mounting base 210 on the chuck 100, the adjusting holes 120 at the two side positions are respectively arranged along the first direction X, and the guide base 330 is connected to the adjusting holes 120 through second bolts 350. Therefore, the plurality of adjusting holes 120 are arranged along the first direction X on two corresponding sides of the guide holder 330, so that when the height of the clamping position of the pipe joint 20 in the second direction Y changes, the guide holder 330 can be fixed by selecting different adjusting holes 120, and the position of the guide holder 330 can be adjusted.

Specifically, the plurality of adjustment holes 120 at two side positions are respectively arranged in two equidistant rows along the first direction X, and the guide holder 330 may be fixed to any adjacent four adjustment holes 120 by 4 bolts. When the guide holder 330 is closest to the positioning mount 210, that is, when the guide holder 330 is connected to the adjustment hole 120 closest to the positioning mount 210, the height between the center line of the two guide holders 330 in the second direction Y and the positioning mount 210 may be set to 27.5mm. The distance between adjacent two positioning holes arranged in the first direction X may be set to 15mm. The position of the adjusting hole 120 is set to be n, and the distance n from the adjusting hole 120 to the positioning mounting base 210 is 0, 1, 2 and 3 in sequence. Thus, a height L =27.5+15n between the center line of guide holder 330 in second direction Y and positioning mount 210. Thus, the adjustment hole 120 to which the guide holder 210 is to be coupled can be conveniently selected according to the size of the coupling boss 20. The lathe fixture 10 can be matched with the clamping requirements of pipe joints 20 with different sizes, so that the production cost is reduced, the workload of workers is reduced, the working efficiency is improved, and the warehouse storage and management are facilitated.

As shown in fig. 1, the turning jig 10 in the embodiment of the present application further includes: the weight 400, the weight 400 is disposed on the chuck 100, so that the center of gravity of the lathe fixture 10 is close to the center of the chuck 100. Specifically, the weight 400 is disposed on the chuck 100 at a position far from the positioning mounting seat 210. The weight 400 may be provided as one, may be provided as two corresponding to the two guide seats 330 as shown in fig. 1, and may be provided as a plurality of other numbers, which is not limited thereto. Thus, by providing the weight 400 on the chuck 100, the weight on the chuck 100 can be made more uniform, and further, the pipe joint 20 on the lathe tool 10 can be more balanced when being machined.

As shown in fig. 1, two weights 400 may be disposed, and the two weights 400 are disposed at positions away from the positioning mounting base 210 and located at two sides of the pressing plate 220. Thus, by providing two weights 400, the pipe joint can be positioned between the weights 400 and the positioning mount 210, and the center of gravity of the lathe fixture 10 can be brought close to the center of the chuck 100 after the pipe joint is fixed to the lathe fixture 10.

As described above, when the pipe joint 20 is machined by using the lathe fixture 10 of the embodiment of the present application, the chuck 100 can be fixed to a lathe, and the weight member 400 can be fixed to the chuck 100. Depending on the size of the coupler 20, a suitable locating mandrel 250 is selected to be mounted on the locating mount 210, and the coupler 20 is placed on the locating mandrel 250 such that the first axial segment 251 of the coupler 20 extends into the coupler 20. The support rod 240 is screwed into the first mounting hole 211 of the positioning mounting seat 210, and the upper end of the support rod 240 is adjusted to a height corresponding to the upper end of the pipe joint 20. The first bolt 230 is inserted into the kidney-shaped hole of the pressing plate 220 and then is threadedly coupled to the second mounting hole 212. The position of the pressing plate 220 is adjusted so that the two ends of the pressing plate 220 are respectively abutted against the supporting rods 240 and the upper end of the pipe joint 20. The length of the first bolt 230 screwed into the second mounting hole 212 is adjusted to clamp and fix the pressing plate 220 and the positioning mandrel 250 to the pipe joint 20 along the first direction X.

According to the size of the pipe joint 20, the two guide seats 330 are symmetrically fixed on the chuck 100 by selecting the proper adjusting holes 120. The two connecting seats 340 are respectively fixed at two sides of the two guide seats 330, and the push rod 320 is screwed into the fourth threaded hole 343 of the connecting seat 340, so that the connecting portion 321 of the push rod 320 is exposed after passing through the fourth threaded hole 343. The coupling portion 321 is installed in the coupling groove 311, the guide plate 310 is then installed in the guide groove 331 of the guide holder 330, and the cover plate 360 is installed on the guide holder 330 such that the guide plate 310 can only slide in the guide groove 331 by the push of the push rod 320. Thereby, the distance between the two guide plates 310 on the two guide seats 330 can be adjusted, so that the pipe joint 20 can be clamped and fixed in the second direction Y.

The present application further provides a method 400 for turning the pipe joint 20, and the following describes in detail the specific steps of the method 400 for turning the pipe joint 20 according to the embodiment of the present application with reference to the drawings.

Fig. 10 is a flow chart of a method 400 of turning the pipe joint 20 in the embodiment of the present application. As shown in fig. 10, the turning method 400 for the pipe joint 20 in the embodiment of the present application includes the following specific steps:

and step S410, size information is acquired.

In step S410, size information of the pipe joint 20 is acquired, and specifically, the size information may include size information of the pipe joint 20 in the first direction X and the second direction Y.

Step S420, determining the positioning mandrel 250.

In step S420, the pipe joints 20 of different types and sizes correspond to the positioning mandrels 250 of different types and sizes, the positioning mandrel 250 of the lathe tool fixture 10 is selected and determined according to the size information, and after the positioning mandrel 250 is fixed on the positioning mounting seat 210, the positioning mandrel 250 positions the position of the pipe joint 20 on the lathe tool fixture 10 along the first direction X, so that the axis of the end of the pipe joint 20 to be processed coincides with the axis of the chuck 100.

Step S430, fixing the pipe joint 20 in the first direction X

In step S430, after the pipe joint 20 is mounted on the positioning mandrel 250, the pipe joint 20 is clamped and fixed using the pressing plate 220, thereby fixing the pipe joint 20 in the first direction X.

Step S440 fixes the pipe joint 20 in the second direction Y.

In step S440, the adjustment holes 120, in which the guide plate 310 of the lathing jig 10 is installed, are determined among the plurality of adjustment holes 120 of the lathing jig 10 according to the size information, and the plurality of adjustment holes 120 are arranged in the first direction X. The guide plates 310 are provided in two for clamping and fixing the pipe joint 20 in the second direction Y.

From the above, by providing the positioning mandrel 250, the pipe joint 20 can be positioned by the positioning mandrel 250, thereby facilitating the operation of the worker. When the size of the pipe joint 20 changes, the positioning mandrel 250 on the positioning mount 210 may also be replaced according to the size of the pipe joint 20. Thereby, the positioning requirements of different pipe joints 20 can be adapted by replacing the positioning mandrel 250. The adjustment holes 120 may be selected according to the size of the pipe joint 20, so that the position of the guide plate 310 may be adjusted, so that the guide plate 310 may be adapted to the pipe joint 20 of different sizes to clamp and fix the pipe joint 20 in the second direction Y. Thereby reducing the production cost, lightening the workload of workers, improving the working efficiency and being convenient for warehouse storage and management.

It should be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the particular embodiments described herein, and that various obvious changes, rearrangements and substitutions will now be apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention.

Claims

1. A pipe joint turning tool, comprising:

the chuck can be detachably connected with a workbench of the machine tool;

the positioning installation seat is arranged on the chuck;

the positioning mandrel is fixed on the positioning installation seat along a first direction, and one end of the positioning mandrel can be inserted into the pipe joint;

the pressing plate is movably connected with the positioning installation seat, and the pipe joint is clamped and fixed between the pressing plate and the positioning installation seat along the first direction;

the two guide plates are arranged at the two sides of the pipe joint and are in sliding connection with the chuck along a second direction, and the second direction is crossed with the first direction;

the push rods are arranged and are in threaded connection with the chuck along the second direction, and the two push rods are in transmission connection with the guide plate respectively.

2. The pipe joint lathing clamp according to claim 1, further comprising:

the first bolt penetrates through the middle position of the pressure plate, and the end part of the first bolt is in threaded connection with the positioning mounting seat;

the supporting rod and the pipe joint are respectively located on two sides of the first bolt, one end of the supporting rod is in threaded connection with the positioning installation seat, and the other end of the supporting rod is abutted to the pressing plate.

3. The tube fitting lathe fixture of claim 2, wherein the pressure plate is provided with a kidney-shaped hole extending in a direction approaching/departing from the tube fitting, and the first bolt is inserted through the kidney-shaped hole.

4. The pipe joint lathing fixture of claim 1, wherein the positioning mandrel is removably connected with the positioning mount; the positioning mandrel is provided with a first shaft section towards one end of the pipe joint, the outer diameter of the first shaft section is matched with the inner diameter of the pipe joint towards one end of the positioning installation seat, and the length of the first shaft section is matched with the distance from the end face of the pipe joint towards one end of the positioning installation seat to the flow passage cross point of the pipe joint.

5. The pipe joint lathing clamp according to any one of claims 1 to 4, further comprising:

two guide seats are arranged and detachably connected with the chuck; the guide seat is provided with a guide groove, and the guide groove is in a through groove shape and extends along the second direction; the two guide plates are respectively arranged in the guide grooves of the two guide seats, and the guide plates are matched with the guide grooves in shape.

6. The pipe joint lathing clamp according to claim 5, wherein the push rod is in threaded connection with the guide seat, and a connecting part is arranged at one end of the push rod facing the guide plate and is spherical; the baffle orientation push rod one end is provided with the spread groove, the spread groove is logical groove form, with the shape looks adaptation of connecting portion.

7. The pipe joint lathing clamp as claimed in claim 5, wherein a plurality of adjusting holes are respectively formed in the chuck at two sides of the positioning and mounting seat, and the adjusting holes at two sides are respectively arranged along the first direction; the guide seat is connected with the adjusting hole through a second bolt.

8. The pipe joint lathing fixture of claim 1, wherein the first direction is disposed perpendicular to the second direction.

9. A pipe joint turning method characterized by fixing the pipe joint using a turning jig, comprising:

acquiring size information of the pipe joint;

selecting and determining a positioning mandrel of the lathe fixture according to the size information, wherein different positioning mandrels position the pipe joint on the lathe fixture along a first direction;

fixing the pipe joint in the first direction;

and fixing the pipe joint in a second direction, wherein the second direction is crossed with the first direction.

10. The pipe joint turning method according to claim 9, wherein fixing the pipe joint in the second direction specifically comprises:

and determining the adjusting holes for installing the guide plate of the lathe fixture in the plurality of adjusting holes of the lathe fixture according to the size information, wherein the plurality of adjusting holes are distributed along the first direction, and the two guide plates are used for clamping and fixing the pipe joint in the second direction.