CN109079801B - Copper paste feeding device for double oil pipes of automobile - Google Patents

Abstract

The invention discloses a copper paste feeding device for an automobile double oil pipe, wherein a turntable is rotatably arranged on a workbench, two groups of positioning mechanisms are symmetrically arranged on the turntable and control the two groups of positioning mechanisms to be close to or far away from a manipulator on the side when rotating, and each positioning mechanism comprises a plurality of groups of corresponding clamping cylinders and supporting blocks for clamping and positioning an oil pipe structure; the manipulator is provided with a screw valve, copper paste is stored in the storage tank and is connected to the screw valve through a pipeline, and when the manipulator drives the screw valve to reach the position above the positioning mechanism close to the manipulator, the screw valve is used for feeding copper paste to an oil pipe structure at the position of the positioning mechanism. When copper paste is arranged on the oil pipe structure on one group of positioning mechanisms, the copper paste can be detached and placed on the oil pipe structure on the other group of positioning mechanisms, so that the time is saved and the efficiency is improved. The mechanical arm can accurately reach the copper paste to be applied position of the double oil pipes, the screw valve can extrude accurate copper paste amount, feeding is completed manually, efficiency is improved, and quality is guaranteed.

Description

Copper paste feeding device for double oil pipes of automobile

Technical Field

The invention relates to a workpiece processing device, in particular to a copper paste feeding device for double oil pipes of an automobile.

Background

The shapes of the automobile oil pipes are various, as shown in fig. 7, the structure of the automobile double oil pipes is to be processed, two oil pipes a are welded into a whole through two or more connecting plates b, and the connecting plates b are provided with matching holes c for external connection; copper paste is also required to be coated at the joint of the connecting plate b and the oil pipe a, so that the strength, corrosion resistance and other characteristics of the joint are improved, and the product quality is improved. The existing copper paste feeding procedure is an instrument for feeding copper paste by a worker in a handheld manner, and is difficult to ensure the quality and low in efficiency when the copper paste is fed to the double oil pipes of the automobile; or in the process, the worker fixes the automobile double oil pipe through the positioning structure, and then stretches the copper paste feeding device to the copper paste feeding position to be fed through the mechanical structure, so that the processing quality is improved, but the fixing and the dismounting of the automobile double oil pipe are complex, and the efficiency is influenced by time waste.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides the copper paste feeding device for the automobile double oil pipes, which has the advantages of simple structure, convenience in realizing multi-station work, capability of synchronously realizing copper paste feeding and double oil pipe dismounting, improvement of product processing efficiency and guarantee of product quality.

The invention adopts the following technical scheme: the copper paste feeding device for the automobile double-oil pipe comprises a workbench, a turntable, two groups of positioning mechanisms, a manipulator, a screw valve and a storage tank, wherein the turntable, the manipulator and the storage tank are all arranged on the workbench; the manipulator is provided with a screw valve, copper paste is stored in the storage tank and is connected to the screw valve through a pipeline, and when the manipulator drives the screw valve to reach the position above the positioning mechanism close to the manipulator, the screw valve is used for feeding copper paste to an oil pipe structure at the position of the positioning mechanism.

As an improvement, the rotary driving mechanism comprises a driving cylinder, a driving rack and a driving gear, wherein the driving cylinder is fixed on the bottom surface of the workbench, the driving cylinder is connected with the driving rack and axially linked, a sliding rail is arranged on the bottom surface of the workbench, and a sliding groove matched with the sliding rail is arranged on the back surface of the driving rack for matching sliding; the turntable comprises a turntable body and a rotating shaft arranged at the lower part of the turntable body, a pillow block is arranged on the workbench, the pillow block is provided with a step hole, the rotating shaft is rotatably arranged in the step hole in a penetrating manner through a bearing group, a driving gear is arranged at the lower part of the rotating shaft, and the driving gear is meshed and linked with the driving rack.

As an improvement, the bearing group comprises an upper bearing and a lower bearing, the middle part of the step hole is provided with a step, the inner diameter of the step hole at the step is smaller than that of two sides, the upper bearing and the lower bearing are respectively arranged at the upper end and the lower end of the step, the rotating shaft comprises a large end at the upper part and a small end at the lower part, the upper bearing and the lower bearing are respectively sleeved at the small end, and the large end is supported at the upper bearing.

As an improvement, the disk body is waist shape, and two sets of positioning mechanism symmetry sets up in disk body length direction's both sides, and disk body width direction's side is provided with the stopper, is provided with inductive switch for the both sides of disk body on the workstation, inductive switch and drive cylinder signal connection, and the position and the stopper of two sets of inductive switch correspond, and when the disk body rotation makes the inductive switch of stopper arrival both sides, inductive switch feedback signal makes it stop to drive cylinder, and disk body rotation angle is 180 degrees.

As an improvement, the buffer is arranged on the workbench in a pairing mode with the inductive switch, and when the limiting block reaches the inductive switch on two sides, the buffer is contacted with the limiting block to buffer.

As an improvement, two detachable replacement plates are arranged on the tray body, caulking grooves for installing the replacement plates are formed in the tray body, a plurality of installation holes are formed in the periphery of the replacement plates and are matched with the installation holes correspondingly formed in the tray body to assemble fasteners, and two groups of positioning mechanisms are respectively arranged on the two replacement plates.

As an improvement, a mounting seat is arranged between two replacement plates on the tray body, a plurality of groups of three-way T-shaped air pipes which are orderly arranged are arranged on the mounting seat, through holes are formed in the rotating shaft along the axial direction, the lower openings of the three-way T-shaped air pipes face the through holes, the upper two openings of the three-way T-shaped air pipes face two sides, and elastic clamping grooves corresponding to the openings on the two sides are formed in the mounting seats on the two sides.

As an improvement, the positioning mechanism is at least one group of support blocks of which the clamping cylinders in the horizontal direction are matched with the side edges and at least one group of support blocks of which the clamping cylinders in the vertical direction are matched with the lower parts; the cylinder shaft of the clamping cylinder is provided with a compression bar, the far end of the compression bar is provided with a yielding hole, the supporting block is provided with an oil pipe locating pin matched with the compression bar, the end part of the oil pipe locating pin is provided with a conical locating protrusion, the compression bar and the oil pipe locating pin are used for clamping and locating an oil pipe structure between the compression bar and the oil pipe locating pin, and the conical locating protrusion is opposite to the yielding hole.

As an improvement, the cylinder shaft of the clamping cylinder in the vertical direction is upwards provided with a cross arm transversely, and the other end of the cross arm is downwards provided with a compression bar.

As an improvement, the screw valve comprises a stepping motor, a storage tube, a pushing screw and a discharging head, wherein the storage tube is rotatably arranged on the manipulator through a radial arm, the storage tube is hollow and provided with the stepping motor at one end, a motor shaft of the stepping motor is axially slidably connected with the pushing screw, the pushing screw is arranged in the storage tube and matched with threads on the inner wall of the storage tube, a side wall opening of the storage tube is connected to a storage tank through a pipeline arranged on the side wall opening, and the discharging head is arranged at the other end of the storage tube opposite to the stepping motor.

The invention has the beneficial effects that: through the setting of two sets of positioning mechanism on the carousel, when having realized the copper cream on the oil pipe structure on a set of positioning mechanism, can dismantle and place new oil pipe that waits to process to the oil pipe structure on another set of positioning mechanism to save process time, improve machining efficiency. The manipulator is used for operating the screw valve to carry out copper paste feeding, the manipulator can accurately reach the copper paste feeding position of the double oil pipes, and the screw valve can extrude accurate copper paste quantity, so that the main feeding work is replaced by manual work, the processing efficiency can be improved, and the product quality can be guaranteed.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an enlarged view of the structure at M in fig. 1.

Fig. 3 is a schematic perspective view of the rotary driving mechanism of the present invention.

Fig. 4 is a longitudinal cross-sectional view at the turntable of the present invention.

Fig. 5 is a schematic perspective view of the positioning mechanism of the present invention.

Fig. 6 is a partial cross-sectional view of a three-dimensional structure of the manipulator and screw valve of the present invention.

Fig. 7 is a schematic perspective view of a double oil pipe of an automobile processed according to the present invention.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1-7, an embodiment of the device for applying copper paste to double oil pipes of an automobile according to the present invention is shown. The embodiment comprises a workbench 0, a turntable 1, two groups of positioning mechanisms 2, a manipulator 3, a screw valve 4 and a storage tank 5, wherein the turntable 1, the manipulator 3 and the storage tank 5 are arranged on the workbench 0, the turntable 1 is rotatably arranged on the workbench 0 through a rotary driving mechanism 6, the two groups of positioning mechanisms 2 are symmetrically arranged on the turntable 1 and control the manipulator 3 of the two groups of positioning mechanisms 2 to be close to or far away from the side edge when rotating, the positioning mechanisms 2 comprise a plurality of groups of clamping cylinders 21 and supporting blocks 22, the clamping cylinders 21 and the supporting blocks 22 are in one-to-one correspondence, and are pressed by the clamping cylinders 21 to the supporting blocks 22 to clamp and position an oil pipe structure positioned between the clamping cylinders 21 and the supporting blocks 22; the manipulator 3 is provided with a screw valve 4, copper paste is stored in the storage tank 5 and is connected to the screw valve 4 through a pipeline, and when the manipulator 3 drives the screw valve 4 to reach the position above the positioning mechanism 2 close to the manipulator 3, the screw valve 4 applies copper paste to an oil pipe structure at the position of the positioning mechanism 2.

When the invention is used, an oil pipe structure is placed on one positioning mechanism 2 from one side of the workbench 0 by a worker, the number of the clamping cylinders 21 and the supporting blocks 22 on the positioning mechanism 2 is determined by the specifically processed oil pipe structure, the specific positions and orientations of the clamping cylinders 21 and the supporting blocks 22 are set in advance according to the position matching of the connecting plates b by taking the double oil pipe a of the attached drawing as an example, and the middle part of the connecting plates b is clamped by starting the clamping cylinders 21 and the supporting blocks 22 after the worker places the double oil pipe of the automobile, so that the effect of firm positioning is achieved. Then, a worker starts the turntable 1 to perform 180-degree rotation transposition, the automobile double oil pipe to be processed is conveyed to the opposite manipulator 3, copper paste is stored in the storage tank 5, the copper paste is connected to the screw valve 4 on the manipulator 3 through a pipeline, the principle and the structure of the manipulator 3 can be realized by adopting the prior art, the description is omitted here, and the requirement that the screw valve 4 is driven to reach a specified position after programming to correspondingly perform copper paste feeding on the connecting plate b and the oil pipe a is met; meanwhile, the positioning mechanism 2 is turned to the front of the staff, no automobile double oil pipe is arranged at the first operation, the staff is fed by the machine type of the staff, and if the processed automobile double oil pipe is arranged in the working procedure, the staff performs the feeding and loading work. In the whole working procedure, double stations enable the feeding and discharging of the cylinder paste to be carried out simultaneously, so that the time of the processing process is halved, and the working efficiency is greatly improved; the work of applying copper paste is replaced by a machine, so that the position and quality of the copper paste can be accurate, and the product quality is ensured. On the basis of the invention, the manual feeding and discharging can be further realized by mechanical automation, the labor cost is further saved, the efficiency is higher, and the error rate is also reduced.

As an improved specific embodiment, the rotary driving mechanism 6 comprises a driving cylinder 61, a driving rack 62 and a driving gear 63, wherein the driving cylinder 61 is fixed on the bottom surface of the workbench 0, the driving cylinder 61 is connected with the driving rack 62 and axially linked, a sliding rail 01 is arranged on the bottom surface of the workbench 0, and a sliding groove 621 matched with the sliding rail 01 is arranged on the back surface of the driving rack 62 for matched sliding; the turntable 1 comprises a turntable body 11 and a rotating shaft 12 arranged at the lower part of the turntable body 11, a pillow block 02 is arranged on the workbench 0, the pillow block 02 is provided with a step hole 03, the rotating shaft 12 is rotatably arranged in the step hole 03 in a penetrating manner through a bearing group, a driving gear 63 is arranged at the lower part of the rotating shaft 12, and the driving gear 63 is meshed and linked with a driving rack 62.

As shown in fig. 3 and 4, the turntable 1 is provided with two stations, so that 180-degree forward and reverse rotation can be realized, the driving cylinder 61 can be well realized, the two stations for extending and retracting the driving cylinder 61 can correspond to two stay positions for rotating the turntable 1, and the switching action is efficiently completed; the linkage of the driving cylinder 61 and the turntable 1 is realized by driving the rack 62 and the driving gear 63, and the meshing and rotating linkage modes of the tooth structure can not produce skidding, are not easy to produce abrasion, and can ensure the accurate position of the turntable and prolong the service life. The driving gear 63 is fixedly installed with the rotating shaft 12, the driving rack 62 is structurally arranged on the sliding groove 621, the sliding groove 621 can be slidably installed on the sliding rail 01, the structure is simple and easy to realize, and the stable matching can be ensured. The rotatable setting of pivot 12 is in the step hole 03 of pillow block 02, sets up the bearing group through the step 031 in the step hole 03, can make pivot 12 carry out smooth and easy rotation, guarantees disk 11 rotatory position accuracy, reduces the wearing and tearing between the structure.

As an improved specific embodiment, the bearing set comprises an upper bearing 121 and a lower bearing 122, a step 031 is arranged in the middle of the step hole 03, the inner diameter of the step hole 03 at the step 031 is smaller than that of two sides, the upper bearing 121 and the lower bearing 122 are respectively arranged at the upper end and the lower end of the step 031, the rotating shaft 12 comprises a large end at the upper part and a small end at the lower part, the upper bearing 121 and the lower bearing 122 are respectively sleeved at the small end, and the large end is supported at the upper bearing 121.

As shown in fig. 3 and 4, a step 031 is specifically provided, and an upper bearing 121 and a lower bearing 122 are provided at the upper end and the lower end of the step 031, so that the radial stability of the rotating shaft 12 is realized, and the rotation can be well matched; the rotating shaft 12 is divided into a large end and a small end to be positioned at the upper bearing 121, so that the stable arrangement of the whole rotating shaft 12 at the pillow block 02 is realized, the turntable 1 can be machined by adopting lighter metal, the bearing of the upper bearing 121 is reduced, and the service life is prolonged.

As an improved specific implementation manner, the tray body 11 is waist-shaped, two groups of positioning mechanisms 2 are symmetrically arranged on two sides of the length direction of the tray body 11, limiting blocks 13 are arranged on the side edges of the width direction of the tray body 11, inductive switches 04 are arranged on the workbench 0 opposite to the two sides of the tray body 11, the inductive switches 04 are in signal connection with the driving air cylinders 61, the positions of the two groups of inductive switches 04 correspond to the limiting blocks 13, and when the tray body 11 rotates to enable the limiting blocks 13 to reach the inductive switches 04 on the two sides, the inductive switches 04 feed back signals to the driving air cylinders 61 to enable the driving air cylinders to stop, and the rotation angle of the tray body 11 is 180 degrees.

As shown in fig. 1, 2, 4, the kidney-shaped disc 11 forms a region where the positioning mechanism 2 is provided at both ends in the longitudinal direction, and a space where the induction switch 04 is provided outside in the width direction; the position of inductive switch 04 is lower than disk 11, does not interfere with normal rotation of disk 11, and the position of stopper 13 installation is lower than disk 11, and is in corresponding cooperation with inductive switch 04, and inductive switch 04's setting has realized the good accuse to disk 11 back position in place, can feed back the signal and give driving cylinder 61 and stop it, reduces driving cylinder 61 two extreme positions and brings the impact in place, guarantees that the position of car double oil pipe on positioning mechanism 2 is stable, is difficult for producing slight deviation, improves the position accuracy of last copper paste.

As a modified specific embodiment, a buffer 05 is arranged on the workbench 0 in a pairing mode with the inductive switch 04, and when the limiting block 13 reaches the inductive switches 04 on two sides, the buffer 05 is contacted with the limiting block 13 for buffering.

As shown in fig. 1, 2 and 4, the shock caused by the two extreme positions of the driving cylinder 61 being in place is further reduced by the arrangement of the buffer 05, so that the buffer 05 buffers the limiting block 13, the limiting block 13 is ensured not to touch the inductive switch 04 due to faults, structural vibration of the disc 11 caused by the shock is reduced, the position of the disc 11 is accurate, and the shock between the structures is small.

As an improved specific embodiment, the tray body 11 is provided with two detachable replacement plates 111, the tray body 11 is provided with a caulking groove 112 for installing the replacement plates 111, the replacement plates 111 are provided with a plurality of mounting holes on the periphery and are matched with the correspondingly arranged mounting holes on the tray body 11 to assemble fasteners, and the two groups of positioning mechanisms 2 are respectively arranged on the two replacement plates 111.

As shown in fig. 1, 2 and 5, the arrangement of the replacement plate 111 realizes that different positioning mechanisms 2 can be replaced, and the automobile double oil pipe as shown in the drawing has a structure of two connecting plates b and has a certain direction, and the automobile double oil pipe needs to be matched with the corresponding positioning mechanism 2; when the automobile double oil pipes with different structures need to be processed, the positioning mechanism 2 can be replaced by the replacement plate 111, and the special multi-group positioning mechanism 2 is customized only according to the automobile double oil pipes with different specifications, so that the requirement that one device can process the automobile double oil pipes with different specifications is met, the processing requirement of customers is met, and the application range is wider.

As an improved specific embodiment, a mounting seat 113 is arranged between two replacement plates 111 on the tray body 11, a plurality of groups of three-way T-shaped air pipes 114 which are orderly arranged are arranged on the mounting seat 113, through holes 123 are formed in the rotating shaft 12 along the axial direction, the lower openings of the three-way T-shaped air pipes 114 face the through holes 123, the upper two openings of the three-way T-shaped air pipes 114 face two sides, and elastic clamping grooves 115 corresponding to the openings on the two sides are formed in the mounting seats 113 on the two sides.

As shown in fig. 1, 2 and 4, the number of the three-way T-shaped air pipes 114 corresponds to that of the clamping cylinders 21, one end opening of the upper part is correspondingly connected with one clamping cylinder 21, and the other end can be plugged, so that the upper opening can be flexibly selected according to the position of the clamping cylinder 21, and the elastic clamping groove 115 corresponding to the upper opening can be used for clamping the air pipes, thereby ensuring the regular and stable structure and adapting to the rotation stability of the disc 11. The elastic clamping groove 115 can be specifically made of a rubber member, and a plurality of U-shaped grooves are formed in the rubber member, namely the elastic clamping groove 115. The lower part opening connection trachea of tee bend T shape trachea 114, trachea unify and arrange downwards from the through-hole 123 of pivot 12 and be connected to the air pump, and is rational in infrastructure stable, and the rotation of carousel 1 can not receive the trachea interference of outwards drawing forth, makes carousel 1 structure succinct orderly, has avoided unnecessary pipeline to the restriction of carousel 1 use, reduces the possibility that the interference makes mistakes between the structure.

As an improved specific embodiment, the positioning mechanism 2 is at least one group of supporting blocks 22 of which the clamping cylinders 21 in the horizontal direction are matched with the side edges, and at least one group of supporting blocks 22 of which the clamping cylinders 21 in the vertical direction are matched with the lower parts; the cylinder shafts of the clamping cylinders 21 are respectively provided with a compression bar 211, the distal ends of the compression bars 211 are provided with a yielding hole 212, the supporting blocks 22 are provided with an oil pipe locating pin 221 matched with the compression bars 211, the end parts of the oil pipe locating pins 221 are provided with conical locating protrusions 222, the compression bars 211 and the oil pipe locating pins 221 clamp and locate an oil pipe structure between the compression bars 211 and the oil pipe locating pins 221, and the conical locating protrusions 222 are opposite to the yielding hole 212.

As shown in fig. 1, 2 and 5, the structure is specifically adapted to the positioning of two connecting plates b, one of the two connecting plates b is horizontally arranged when positioned, and the other connecting plate b is vertically arranged; for the positioning of more than two connecting plates b, and the connecting plates b are horizontally arranged or vertically arranged, a specific corresponding clamping cylinder 21 and a supporting block 22 can be added for realizing. Specifically, when the automobile double oil pipes of the two connecting plates b are positioned, the matching holes c on the connecting plates b provide a good limiting structure for positioning, the positioning is realized by arranging the yielding holes 212 on the pressure rods 211 and arranging the conical positioning protrusions 222 on the oil pipe positioning pins 221, after the conical positioning protrusions 222 penetrate through the matching holes c, the positioning planes of the oil pipe positioning pins 221 are contacted with the connecting plates b, the pressure rods 211 are driven by the clamping cylinders 21 to press the connecting plates b, and the yielding holes 212 are opposite to the conical positioning protrusions 222 to serve as yielding spaces, so that the positioning accuracy can be ensured as a whole; the conical positioning protrusion 222 is beneficial to penetrating into the matching hole c, the large end of the conical positioning protrusion can be matched with the matching hole c, and the automobile double oil pipe is accurately positioned after the pressure lever 211 and the oil pipe positioning pin 221 are completely pressed against the connecting plate b.

As an improved embodiment, the cylinder shaft of the vertical clamping cylinder 21 is arranged upwards, a cross arm 232 is transversely arranged on the cylinder shaft, and a compression bar 211 is arranged downwards from the other end of the cross arm 232. As shown in fig. 5, the above structure enables the vertical clamping cylinder 21 and the supporting block 22 to be directly arranged on the replacement plate 111, and the transverse extension of the cross arm 232 enables the compression bar 211 to correspond to the oil pipe locating pin 221, so that the manufacturing and the installation are simpler, and the complexity of the auxiliary structure caused by the direct opposite arrangement of the vertical clamping cylinder 21 and the supporting block 22 is reduced.

As an improved specific embodiment, the screw valve 4 comprises a stepping motor 41, a storage tube 42, a pushing screw 43 and a discharging head 44, wherein the storage tube 42 is rotatably arranged on the manipulator 3 through a rotating arm 45, the storage tube 42 is hollow and is provided with the stepping motor 41 at one end, a motor shaft of the stepping motor 41 is axially slidably connected with the pushing screw 43, the pushing screw 43 is arranged in the storage tube 42 and is matched with threads on the inner wall of the storage tube 42, a side wall opening of the storage tube 42 is provided with a pipeline connected to the storage tank 5 through the side wall opening, and the other end of the storage tube 42 opposite to the stepping motor 41 is provided with the discharging head 44.

As shown in fig. 1 and 6, the concrete structure of the screw valve 4 realizes the accurate copper paste feeding. The specific storage pipe 42 is rotatably arranged on the manipulator 3 by a radial arm 45, can change the rotation position of 360 degrees, and ensures the flexibility of the position adjustment of the screw valve 4 by combining the three-dimensional action of the manipulator 3. One end of the storage pipe 42 is connected with a stepping motor 41, a motor shaft of the stepping motor 41 stretches into the storage pipe 42, threads on the inner wall of the storage pipe 42 are screwed with a pushing screw 43 in the storage pipe 42, one end of the pushing screw 43 is provided with a hole, the hole wall is provided with a matching groove 431, a matching block 432 corresponding to the matching groove 431 is arranged on the motor shaft, and the motor shaft stretches into the hole to enable the matching block 432 to be inserted into the matching groove 431; in the process of working and rotating the stepping motor 41, the matching block 432 is matched in the matching groove 431, so that the motor shaft drives the pushing screw 43 to rotate, the pushing screw 43 can advance or retreat along the threads, and the matching block 432 axially slides relative to the matching groove 431; copper paste enters the storage tube 42 from the side wall opening of the storage tube 42 and is extruded from the discharge head 44 when the pushing screw 43 advances. The working time of the stepping motor 41 can be effectively controlled on the whole, the effect of accurately advancing the pushing screw 43 to push out the quantitative copper paste is achieved, the debugging is convenient to rapidly change the required copper paste amount, and the copper paste feeding requirements of double oil pipes of different automobiles are met; the pushing screw 43 achieves finer short-distance axial pushing through long-distance axial rotation, and is convenient to adjust the copper paste amount through control.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (5)

1. Go up copper cream device of car double oil pipe, its characterized in that: the automatic oil pipe clamping device comprises a workbench (0), a rotary table (1), two groups of positioning mechanisms (2), a manipulator (3), a screw valve (4) and a storage tank (5), wherein the rotary table (1), the manipulator (3) and the storage tank (5) are arranged on the workbench (0), the rotary table (1) is rotatably arranged on the workbench (0) through a rotary driving mechanism (6), the two groups of positioning mechanisms (2) are symmetrically arranged on the rotary table (1) and control the manipulator (3) of the two groups of positioning mechanisms (2) close to or far away from the side edge when rotating, the positioning mechanisms (2) comprise a plurality of groups of clamping cylinders (21) and supporting blocks (22), and the clamping cylinders (21) and the supporting blocks (22) are in one-to-one correspondence and are pressed towards the supporting blocks (22) by the clamping cylinders (21) to clamp and position an oil pipe structure positioned between the clamping cylinders (22); the manipulator (3) is provided with a screw valve (4), copper paste is stored in the storage tank (5) and is connected to the screw valve (4) through a pipeline, and when the manipulator (3) drives the screw valve (4) to reach the position above the positioning mechanism (2) close to the manipulator (3), the screw valve (4) is used for feeding copper paste to an oil pipe structure at the position of the positioning mechanism (2);

the rotary driving mechanism (6) comprises a driving air cylinder (61), a driving rack (62) and a driving gear (63), wherein the driving air cylinder (61) is fixed on the bottom surface of the workbench (0), the driving air cylinder (61) is connected with the driving rack (62) and axially links, a sliding rail (01) is arranged on the bottom surface of the workbench (0), and a sliding groove (621) matched with the sliding rail (01) is arranged on the back surface of the driving rack (62) for matched sliding; the rotary table (1) comprises a table body (11) and a rotary shaft (12) arranged at the lower part of the table body (11), a pillow block (02) is arranged on the workbench (0), the pillow block (02) is provided with a step hole (03), the rotary shaft (12) is rotatably arranged in the step hole (03) in a penetrating way through a bearing group, a driving gear (63) is arranged at the lower part of the rotary shaft (12), and the driving gear (63) is meshed and linked with a driving rack (62);

the bearing set comprises an upper bearing (121) and a lower bearing (122), a step (031) is arranged in the middle of the step hole (03), the inner diameter of the step hole (03) at the step (031) is smaller than that of two sides, the upper bearing (121) and the lower bearing (122) are respectively arranged at the upper end and the lower end of the step (031), the rotating shaft (12) comprises a large end at the upper part and a small end at the lower part, the upper bearing (121) and the lower bearing (122) are respectively sleeved at the small ends, and the large end is supported at the upper bearing (121);

the disc body (11) is waist-shaped, two groups of positioning mechanisms (2) are symmetrically arranged on two sides of the length direction of the disc body (11), limiting blocks (13) are arranged on the side edges of the width direction of the disc body (11), inductive switches (04) are arranged on the workbench (0) relative to the two sides of the disc body (11), the inductive switches (04) are in signal connection with the driving air cylinders (61), the positions of the two groups of inductive switches (04) correspond to the limiting blocks (13), when the disc body (11) rotates to enable the limiting blocks (13) to reach the inductive switches (04) on the two sides, feedback signals of the inductive switches (04) are fed back to the driving air cylinders (61) to enable the driving air cylinders to stop, and the rotating angle of the disc body (11) is 180 degrees;

a buffer (05) is arranged on the workbench (0) in a pairing mode with the inductive switch (04), and when the limiting block (13) reaches the inductive switches (04) on two sides, the buffer (05) is contacted with the limiting block (13) for buffering;

the novel disc comprises a disc body (11), wherein two detachable replacement plates (111) are arranged on the disc body (11), caulking grooves (112) for installing the replacement plates (111) are formed in the disc body (11), a plurality of installation holes are formed in the periphery of the replacement plates (111), the installation holes are matched with the installation holes formed in the disc body (11) correspondingly to assemble fasteners, and two groups of positioning mechanisms (2) are respectively arranged on the two replacement plates (111).

2. The device for applying copper paste to double oil pipes of an automobile according to claim 1, wherein: be provided with mount pad (113) on disk body (11) between two change board (111), set up a plurality of tee bend T shape trachea (114) of neatly arranging on mount pad (113), through-hole (123) have been seted up along the axial to pivot (12), the lower part opening of tee bend T shape trachea (114) is towards through-hole (123), two openings in the upper portion of tee bend T shape trachea (114) are towards both sides to mount pad (113) in both sides all are provided with elasticity double-layered groove (115) corresponding with both sides opening.

3. The device for applying copper paste to double oil pipes of an automobile according to claim 1, wherein: the positioning mechanism (2) is at least one group of supporting blocks (22) matched with the side edges of the clamping cylinders (21) in the horizontal direction and at least one group of supporting blocks (22) matched with the lower parts of the clamping cylinders (21) in the vertical direction; the clamping cylinder is characterized in that compression rods (211) are arranged on cylinder shafts of the clamping cylinders (21), a yielding hole (212) is formed in the far ends of the compression rods (211), an oil pipe locating pin (221) matched with the compression rods (211) is arranged on the supporting block (22), a conical locating protrusion (222) is arranged at the end of each oil pipe locating pin (221), the compression rods (211) and the oil pipe locating pins (221) clamp and locate an oil pipe structure between the compression rods (211) and the oil pipe locating pins, and the conical locating protrusions (222) are opposite to the yielding hole (212).

4. The device for applying copper paste to double oil pipes of an automobile according to claim 3, wherein: the cylinder shaft of the clamping cylinder (21) in the vertical direction is upwards provided with a cross arm (232) transversely, and the other end of the cross arm (232) is downwards provided with a compression bar (211).

5. The device for applying copper paste to double oil pipes of an automobile according to claim 1, wherein: screw valve (4) include step motor (41), storage tube (42), push away material screw rod (43) and ejection of compact head (44), storage tube (42) are through rotatable installing on manipulator (3) of a radial arm (45), storage tube (42) cavity and set up step motor (41) in one end, but connection push away material screw rod (43) of motor shaft axial slip of step motor (41), this push away material screw rod (43) set up in storage tube (42) and cooperate with the screw thread of storage tube (42) inner wall, the lateral wall opening of storage tube (42) sets up the pipe connection to holding vessel (5) through this lateral wall opening, the other end of storage tube (42) relative step motor (41) sets up ejection of compact head (44).