Automatic welding system for axle small parts

Abstract

The utility model relates to the technical field of vehicle part machining, and discloses an automatic welding system for axle small parts, which comprises a first mounting platform, a welding unit and two positioning and placing mechanisms are arranged on the first mounting platform, and the welding unit is positioned between the two positioning and placing mechanisms. Each positioning and part placing mechanism comprises a positioning unit, a moving unit and a part placing unit, each positioning unit comprises a clamping rotating part and a jacking part, the clamping rotating parts and the jacking parts are oppositely arranged, the clamping rotating parts can drive the axles to rotate, the moving units can drive the second mounting platform to horizontally move, and the part placing units are used for clamping parts; and the parts are placed on the axle, and welding is conducted in the mode that the moving and rotating of the axle are matched with the multiple part placing parts with the fixed positions. According to the technical scheme, the welding efficiency and the positioning precision of parts can be improved, the technical requirement for operators is low, and meanwhile the situation of welding missing can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle component processing technical field, concretely relates to a kind of axle small piece automation welding system. BACKGROUND

[0002] Axle is the important component of vehicle, it is connected with frame by suspension system, and is installed wheel at both ends, and the main function of axle is to bear the load of vehicle, and ensure that vehicle can normally travel on road.In the processing of axle, multiple welding points on axle need to be welded with other parts, and the shape and size of each welding point are different, the traditional welding process usually adopts manual welding, the disadvantage of manual welding is low welding efficiency, and the technical requirement of operator is high, and there is the problem of missing welding.

[0003] The existing axle small piece automation welding system includes rack and welding torch, clamping rotating mechanism is arranged on the rack, clamping rotating mechanism includes two clamping rotating units, two clamping rotating units are arranged on the opposite sides of rack respectively, axle is located between two clamping rotating units, and axle is clamped by clamping rotating unit, and axle can be rotated, and parts are welded on axle by welding torch.The disadvantage of the technical scheme is that, when welding parts, parts need to be placed in the pre-set position of axle manually, and welding is carried out, so that the welding efficiency is low, and the welding position of parts is prone to deviation. UTILITY MODEL CONTENTS

[0004] The utility model intends to provide a kind of axle small piece automation welding system, to improve welding efficiency and the positioning accuracy of part, reduce the technical requirement of operator, simultaneously, can prevent the occurrence of missing welding condition.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of axle small piece automation welding system, including installation platform no.1, welding unit and two positioning spare mechanisms are arranged on installation platform no.1, welding unit is located between two positioning spare mechanisms, each positioning spare mechanism includes positioning unit, moving unit and spare unit, positioning unit includes installation platform no.2, clamping rotation part is fixedly connected on installation platform no.2, top tight part is slidably arranged on installation platform no.2, clamping rotation part and top tight part are oppositely arranged, clamping rotation part is used to clamp axle, and axle is rotated, and top tight part is used to clamp axle, moving unit can drive installation platform no.2 to move horizontally, spare unit includes support frame, and a plurality of spare parts are detachably connected on support frame, spare part is used to clamp part, and part can be placed on axle, and the welding of the movement and rotation of axle and the fixed position of a plurality of spare parts is matched.

[0006] The beneficial effects of the scheme are that when welding parts on the axle, the axle is first installed on the positioning unit, the parts are installed on the placing part, the axle is rotated to the preset position by the clamping rotating part, the second mounting platform is moved by the moving unit, thereby the axle is horizontally moved to the preset position, the parts are placed on the axle by the placing part, the parts are welded by the welding unit, after welding, the placing part and the welding unit are removed, when the next part needs to be welded, the axle is rotated to the preset position by the clamping rotating part, the axle is horizontally moved to the preset position by the moving unit, the part to be welded is placed on the axle by the placing part, the part is welded by the welding unit, after welding, the placing part and the welding unit are removed, while the welding unit is used to weld the parts, the parts and the axle are installed on the other positioning and placing mechanism, after all the parts are welded, the welded axle is taken down, and the parts on the next axle are welded.

[0007] The technical scheme is that the axle is moved and rotated to match the position-fixed placing parts, so that the programming setting of the welding unit can be obviously reduced.

[0008] Since the two positioning and placing mechanisms are arranged on the first mounting platform, the installation and welding process of the axle and the parts can be synchronized, and the welding efficiency can be obviously improved.

[0009] Since the pressing part is slidably arranged on the second mounting platform, the position of the pressing part can be flexibly adjusted, so that the technical scheme can be applied to welding axles of different models, and has industry universality.

[0010] Since the positioning unit, the moving unit and the placing part are arranged, the axle is moved and rotated to match the position-fixed placing parts, so that the positioning accuracy of the parts and the welding efficiency can be improved, the technical requirement of the operator in the part changing process is very low, so that the labor cost can be reduced, and the missed welding can be prevented.

[0011] Further, the bottom of the first mounting platform is provided with a rotating mechanism, and the rotating mechanism can drive the first mounting platform to rotate.

[0012] The beneficial effects of the scheme are that since the rotating mechanism is arranged, the installation position and the unloading position of the axle and the parts are fixed, the operator does not need to move back and forth during the loading and unloading process, and only needs to load and unload at the fixed position, so that the labor intensity of the operator is reduced, and the position arrangement of the loading and unloading on site is more reasonable.

[0013] Further, the rotating mechanism comprises a first power element, the first power element is fixedly connected to the bottom of the base, and the output shaft of the first power element can pass through the base and is located above the base, a first speed reducer is installed on the output shaft of the first power element, the first speed reducer is fixedly connected to the bottom of the first mounting platform, and the first power element can drive the first mounting platform to rotate.

[0014] The beneficial effects of the present scheme are that during use, the first mounting platform can be driven by the first power element to rotate, so that the installation and welding processes of the axle and the parts are carried out simultaneously, and the welding efficiency is improved.

[0015] Further, a supporting part is slidably arranged on the second mounting platform, the supporting part is located between the clamping rotating part and the jacking part, and the supporting part is used for supporting the axle.

[0016] The beneficial effects of the present scheme are that due to the arrangement of the supporting part, the supporting part can support the axle when the axle is installed and removed, so that the hands of the operator are freed, and the operator can conveniently operate the clamping rotating part and the jacking part.

[0017] Further, the clamping rotating part comprises a second power element and a first driving element, a second speed reducer is installed on the second power element, a chuck is installed on the second speed reducer, the output shaft of the first driving element is fixedly connected to the chuck, and the first driving element is used for driving the jaw on the chuck to move.

[0018] The beneficial effects of the present scheme are that during use, the end of the axle can be clamped by the chuck, the chuck can be driven to rotate by the second power element, the axle can be driven to rotate synchronously by the chuck, so that the angle of the axle is adjusted, and the parts can be conveniently welded at different positions of the axle; and due to the arrangement of the first driving element, the chuck can be conveniently controlled to clamp or release the axle.

[0019] Further, the jacking part comprises a supporting base, the supporting base is slidably arranged on the second mounting platform, a pneumatic tailstock is fixedly connected to the upper side of the supporting base, a second driving element is arranged on the side of the pneumatic tailstock away from the supporting part, the output shaft of the second driving element is fixedly connected to the telescopic shaft of the pneumatic tailstock, the second driving element is used for driving the telescopic shaft of the pneumatic tailstock to move, and a center is fixedly connected to the telescopic shaft of the pneumatic tailstock on the side close to the supporting part.

[0020] The beneficial effects of the present scheme are that during use, the supporting base is pushed to the side close to the axle, the supporting base moves on the second mounting platform, the supporting base is moved to the pre-set position, the second driving element is started, the telescopic shaft of the pneumatic tailstock is driven to move by the second driving element, the center moves to the side close to the supporting part, the center abuts against the end of the axle, and the stability of the axle is improved, so that the welding precision is ensured.

[0021] Compared with directly fixing the tailstock to the output shaft of the second driving member, the movement of the telescopic shaft of the pneumatic tailstock is driven by the second driving member, so that the tailstock is driven to move, the positioning accuracy is improved, and the welding error is reduced.

[0022] Further, the supporting part comprises a connecting bottom plate, the connecting bottom plate is slidingly arranged on the second mounting platform, the upper side of the connecting bottom plate is fixedly connected with a third driving member, and the output shaft of the third driving member is fixedly connected with a supporting plate.

[0023] The beneficial effects of the present scheme are that the height of the supporting plate can be flexibly adjusted due to the third driving member, so that the supporting plate and the axle can better fit, and stable support is provided for the axle.

[0024] The connecting bottom plate is slidingly arranged on the first mounting platform, so that the position of the supporting part can be flexibly adjusted, and the axle can be supported.

[0025] Further, the third mounting platform is arranged, the second mounting platform is slidingly arranged on the third mounting platform, the third mounting platform is provided with a screw pair assembly, and the screw pair assembly is used to drive the second mounting platform to slide on the third mounting platform.

[0026] The beneficial effects of the present scheme are that the second mounting platform can be driven to slide on the third mounting platform by the screw pair assembly during use, so that the horizontal movement of the axle is realized, and the fixed number of placing parts provided by the present scheme can be matched to facilitate welding of parts at different positions of the axle.

[0027] Further, each placing part comprises a fourth driving member and a connecting plate, the connecting plate is in an inverted L shape, the connecting plate comprises a horizontal part and a vertical part which are connected in sequence, the horizontal part is fixedly connected with a fixing block, the fourth driving member is installed on the vertical part, a swing rod is hinged to the output shaft of the fourth driving member, the swing rod is hinged to the upper side of the connecting plate, a connecting block is hinged to the free end of the swing rod, a clamping block is detachably connected to the connecting block, and a plurality of magnets are fixedly connected to the clamping block.

[0028] The beneficial effects of the present scheme are that the placing part is installed on the supporting frame through the fixing block during use, the swing rod is hinged to the output shaft of the fourth driving member and the connecting plate respectively, when the part is placed on the axle, the fourth driving member is started, the output shaft of the fourth driving member is elongated, the free end of the swing rod is moved to the side close to the axle, the part on the clamping block is placed on the axle, and welding is performed, after the welding is completed, the output shaft of the fourth driving member is retracted, the clamping block is moved to the side away from the axle, the clamping block is separated from the part, and the welding of the part is completed.

[0029] Compared with fixing the connecting block on the free end of the swing rod, hinging the connecting block on the free end of the swing rod facilitates flexible adjustment of the angle of the parts when the parts are placed on the axle, so that the parts better fit on the axle and better adapt to the state of the axle.

[0030] Since the clamping block is detachably connected with the connecting block, different clamping blocks can be replaced during use to meet the welding requirements of different models of axles and have compatibility.

[0031] Since the magnet is fixedly connected to the clamping block, the parts can be easily adsorbed and placed on the axle, and the parts can be easily separated from the clamping block after welding.

[0032] Further, the control unit includes a controller, a first power member, a second power member, a first driving member, a second driving member, a third driving member, a fourth driving member, a screw pair assembly, and a welding unit, which are electrically connected with the controller, wherein the first driving member and the second driving member belong to semi-automatic control.

[0033] The beneficial effects of the scheme are that when welding parts on the axle, the controller controls the No. 3 driving piece to move the supporting plate to the side close to the axle, the supporting plate is moved to the position set by the program, the axle is supported, the No. 1 driving piece is manually started, the chuck clamps the left end of the axle, then the No. 2 driving piece is manually started, the No. 2 driving piece drives the tailstock to move, the right end of the axle is abutted by the tailstock, after the installation of the axle is completed, the controller controls the No. 3 driving piece to move the supporting plate to the side away from the axle, the constraint of the supporting plate on the axle is released, then the controller controls the No. 2 power piece to drive the axle to rotate, after the axle is rotated to the position set by the program, the controller controls the screw pair assembly to drive the No. 2 installation platform to move in the horizontal direction, after the axle is moved to the position set by the program, the controller controls the No. 1 power piece to rotate the No. 1 installation platform, the No. 1 installation platform is rotated by 180°, the controller controls the No. 4 driving piece to drive the output shaft of the No. 4 driving piece to elongate, the parts clamped by the clamping block are moved to the side close to the axle, the parts are placed on the axle, the controller controls the welding unit to rotate and move to the position set by the program, the parts are welded to the axle, after the welding is completed, the controller controls the welding unit and the No. 4 driving piece to move away, the controller controls the No. 1 power piece to continue to rotate the No. 1 installation platform by 180°, after the No. 1 installation platform is rotated in place, the controller controls the No. 3 driving piece to move the supporting plate to the side close to the axle, the supporting plate is moved to the position set by the program, the axle is supported, the controller controls the No. 2 driving piece to move the tailstock to the side away from the axle, the constraint of the tailstock on the axle is released, finally, the controller controls the No. 1 driving piece to release the axle, the welded axle is taken down.

[0034] In the process of installing the axle, the No. 1 driving piece and the No. 2 driving piece are manually controlled, so as to prevent the axle from being installed to be inclined and the positioning error from being too large. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a three-dimensional view of the axle small part automatic welding system in the utility model embodiment 1;

[0036] Figure 2 It is a three-dimensional view of the positioning and placing mechanism in the utility model embodiment 1;

[0037] Figure 3 It is a three-dimensional view of the cooperation of the positioning unit and the moving unit in the utility model embodiment 1;

[0038] Figure 4 It is Figure 3A local enlarged view at middle A;

[0039] Figure 5 A three-dimensional view of the support part in the embodiment 1 of the utility model; Figure 3 A local enlarged view at middle B;

[0040] Figure 6 A three-dimensional view of the support part in the embodiment 1 of the utility model;

[0041] Figure 7 A three-dimensional view of the support part in the embodiment 1 of the utility model;

[0042] Figure 8 A three-dimensional view of the support part in the embodiment 1 of the utility model;

[0043] Figure 9 A three-dimensional view of the support part in the embodiment 1 of the utility model;

[0044] Figure 10 A three-dimensional view of the support part in the embodiment 1 of the utility model;

[0045] Figure 11 A three-dimensional view of the support part in the embodiment 1 of the utility model;

[0046] Figure 12 A three-dimensional view of the support part in the embodiment 1 of the utility model;

[0047] Figure 13 A three-dimensional view of the support part in the embodiment 1 of the utility model; DETAILED DESCRIPTION

[0048] The following will be further explained in detail through specific embodiments:

[0049] The reference numerals in the accompanying drawings include: base 1, mounting platform 1, power component 1, reducer 1, robotic arm 5, welding torch 6, mounting platform 2, slide rail 1, positioning plate 9, positioning hole 10, mounting housing 11, power component 2, drive component 1, reducer 2 14, annular transition plate 15, chuck 16, support base 17, slider 18, mounting housing 2 19, pneumatic tailstock 20, drive component 2 21, center point 22, positioning hole 2 23, connecting base Plate 24, Slider No. 25, Drive Component No. 3 26, Support Plate 27, Guide Sleeve 28, Positioning Hole No. 3 29, Mounting Platform No. 3 30, Slide Rail No. 2 31, Slider No. 3 32, Lead Screw Assembly 33, Support Frame 34, Folding Soft Curtain 35, Drive Component No. 5 36, Drive Component No. 4 37, Connecting Plate 38, Horizontal Part 39, Vertical Part 40, Fixing Block 41, Strip Hole 42, Swing Rod 43, Hinge Seat 44, Guide Strip 45, Connecting Block 46, Clamping Block 47, Placement Slot 48, Axle 49, Guide Shaft 50.

[0050] Example 1

[0051] like Figure 1 The illustrated automated welding system for small axle parts includes a first mounting platform 2. A welding unit and two positioning and placement mechanisms are mounted on the upper side of the first mounting platform 2. The two positioning and placement mechanisms are located on the front and rear sides of the first mounting platform 2, respectively, and the welding unit is located between the two positioning and placement mechanisms.

[0052] like Figure 1 As shown, the welding unit includes a robotic arm 5, which is bolted to the center of the side of the first mounting platform 2. A welding torch 6 is bolted to the robotic arm 5. The robotic arm 5 can move the welding torch 6 to facilitate welding parts onto the axle 49. The structure of the robotic arm 5 is existing technology and will not be described in detail here.

[0053] like Figure 2 As shown, each positioning and placement mechanism includes a positioning unit, a moving unit, and a placement unit.

[0054] like Figure 2 and Figure 5 As shown, the positioning unit includes a second mounting platform 7. From left to right, a clamping and rotating part, a support part, and a tightening part are installed on the upper side of the second mounting platform 7. The front and rear sides of the upper side of the second mounting platform 7 are bolted with first slide rails 8. A positioning plate 9 is bolted on the second mounting platform 7 between the two first slide rails 8. The positioning plate 9 has several first positioning holes 10. The support part and the tightening part are slidably set on the first slide rails 8.

[0055] like Figure 2 and Figure 4As shown, the clamping rotating part is arranged at the left side of the first slide rail 8, and the clamping rotating part comprises a first mounting shell 11 which is connected to the upper side of the second mounting platform 7 by bolts, and the first mounting shell 11 is internally provided with a second power member 12 and a first driving member 13, the second power member 12 is provided with a second speed reducer 14, the right end of the second speed reducer 14 extends out of the first mounting shell 11 and is bolted to the right outer side of the first mounting shell 11, the second speed reducer 14 is provided with an annular transition plate 15 bolted thereon, the annular transition plate 15 is provided with a chuck 16 bolted thereon, the second power member 12 can drive the chuck 16 to rotate, the first driving member 13 is connected to the inside of the first mounting shell 11 by bolts, the output shaft of the first driving member 13 extends out of the first mounting shell 11 and is connected to the center position of the chuck 16, the first driving member 13 is used to drive the movement of the clamping jaw on the chuck 16, so as to realize the clamping or loosening of the axle 49, the movement of the clamping jaw on the chuck 16 driven by the first driving member 13 belongs to the prior art, and will not be described in detail here, in this embodiment, the chuck 16 is a three-jaw chuck 16, and in this embodiment, the first power member 3 and the second power member 12 are both selected as servo motors of MR-J2S-100A type.

[0056] As shown in Figure 2 , Figure 3 and Figure 5 , the jacking part comprises a support base 17, the bottom of the support base 17 is provided with four first sliding blocks 18 bolted thereon, the four first sliding blocks 18 are distributed on the four corners of the support base 17, the first sliding blocks 18 are slidingly arranged on the first slide rail 8, the upper side of the support base 17 is provided with a second mounting shell 19 connected thereto by bolts, the second mounting shell 19 is internally provided with a pneumatic tailstock 20 and a second driving member 21, specifically, the pneumatic tailstock 20 is bolted to the upper side of the support base 17, the second driving member 21 is arranged at the right side of the pneumatic tailstock 20, and the output shaft of the second driving member 21 is connected to the telescopic shaft of the pneumatic tailstock 20 by bolts, the second driving member 21 can drive the telescopic shaft of the pneumatic tailstock 20 to move, the left end of the pneumatic tailstock 20 can pass through the left side of the second mounting shell 19, and a center is provided with a center 22 clamped at the left end of the telescopic shaft of the pneumatic tailstock 20, the support base 17 is provided with a second positioning hole 23, and since the first positioning hole 10 and the second positioning hole 23 are arranged, the support base 17 can be fixed after being moved to the pre-set position.

[0057] As shown in Figure 6As shown, the support part includes a connecting bottom plate 24, the left and right sides of the bottom of the connecting bottom plate 24 are both connected by bolts with a second sliding block 25, the second sliding block 25 is slidingly arranged on the first sliding rail 8, the upper side of the connecting bottom plate 24 is connected by bolts with a third driving element 26, the output shaft of the third driving element 26 is connected by bolts with a support plate 27, the left and right sides of the connecting bottom plate 24 are both connected by bolts with a guide sleeve 28, the guide sleeve 28 is slidingly arranged with a guide shaft 50, the upper end of the guide shaft 50 is welded to the bottom of the support plate 27, the support part is used to provide support to the middle part of the axle 49, the upper side of the connecting bottom plate 24 is provided with a third positioning hole 29, the third positioning hole 29 is located at the front side of the third driving element 26, due to the arrangement of the first positioning hole 10 and the third positioning hole 29, when the support part is moved to the center position of the axle 49, the support part is conveniently fixed on the positioning plate 9.

[0058] As shown in Figure 3 and Figure 7 shown, the moving unit includes a third mounting platform 30, the third mounting platform 30 is welded to the first mounting platform 2, the front and rear sides of the upper side of the third mounting platform 30 are both connected by bolts with a second sliding rail 31, the bottom of the second mounting platform 7 is connected by bolts with three groups of third sliding blocks 32, each group of third sliding blocks 32 is slidingly arranged on the second sliding rail 31, the third mounting platform 30 is provided with a screw pair assembly 33, the screw pair assembly 33 is located at the bottom of the second mounting platform 7, and the screw pair assembly 33 can drive the second mounting platform 7 to slide on the second sliding rail 31, the screw pair assembly 33 drives the second mounting platform 7 to slide on the second sliding rail 31, which belongs to the prior art, and will not be described in detail here.

[0059] As shown in Figure 2 and Figure 8 shown, the placing unit is arranged at the rear side of the third mounting platform 30, the placing unit is used to clamp the parts and can place the parts on the axle 49, so as to facilitate the welding of the parts, specifically, the placing unit includes a support frame 34, a folding soft curtain 35 and two fasteners, the support frame 34 is welded to the rear side of the third mounting platform 30, the front and rear sides of the support frame 34 are both connected by bolts with a fifth driving element 36, the folding soft curtain 35 is connected by bolts to the output shaft of the fifth driving element 36, the elongation of the output shaft of the fifth driving element 36 can drive the folding soft curtain 35 to unfold upwards, so as to play a role of light shielding, when welding on the positioning and placing mechanism on the opposite side, the arc light generated during welding can prevent the vision of the operator from being damaged, the upper side of the support frame 34 is provided with eight placing units. As shown in Figure 9 and Figure 10As shown, each set of placing part includes a fourth driving part 37 and a connecting plate 38, the connecting plate 38 is inverted L-shaped, the connecting plate 38 includes a horizontal part 39 and a vertical part 40 connected in sequence, the horizontal part 39 and the vertical part 40 are integrally formed and processed, the front side of the horizontal part 39 is provided with a fixed block 41 through bolt connection, two strip-shaped holes 42 are opened on the upper side of the fixed block 41, and a fastener passes through the strip-shaped holes 42 to fix the fixed block 41 on the upper side of the support frame 34, so that the fixing of the whole placing part and the support frame 34 is realized, the fastener is a fastening bolt, the fourth driving part 37 is installed on the left side of the vertical part 40 through bolt connection, a swing rod 43 is hinged on the output shaft of the fourth driving part 37, a hinge seat 44 is connected on the left upper side of the horizontal part 39 through bolt connection, the swing rod 43 is hinged on the hinge seat 44, a guide part is arranged on the horizontal part 39 on the right side of the hinge seat 44, the guide part includes two guide strips 45, the two guide strips 45 are installed on the front and rear sides of the connecting plate 38 through bolt connection, the guide part is used for guiding the swing rod 43, so that the positioning accuracy of the parts is improved, and the welding quality is improved, a connecting block 46 is hinged on the right end of the swing rod 43, a clamping block 47 is connected on the connecting block 46 through bolt connection, as shown in Figure 11 As shown, two placing grooves 48 are opened on the front side of the clamping block 47, and a magnet is bonded in each placing groove 48, the magnet can adsorb parts, and it should be noted that the shape and size of the clamping block 47 can be designed according to the shape and size of the parts, so as to clamp different parts, and the technical scheme is used for welding by matching the position of the several placing parts fixed by the movement and rotation of the axle 49. In the embodiment, the first driving part 13, the second driving part 21, the third driving part 26, the fourth driving part 37 and the fifth driving part 36 are all selected from the SC60 type cylinder.

[0060] The specific implementation process is as follows:

[0061] Step one: adjust the position of the supporting part, so that the supporting part is located at the center position of the axle 49, specifically, the bottom plate 24 is connected on the first slide rail 8 in sliding mode, the supporting plate 27 is slid to the center position of the axle 49, then the bolt is used to make the bolt pass through the third positioning hole 29 and the first positioning hole 10 in sequence, so that the supporting part is fixed on the positioning plate 9, the third driving part 26 is started, the third driving part 26 drives the supporting plate 27 to move to the side close to the axle 49, so that the supporting plate 27 is in contact with the bottom of the axle 49, and the supporting plate 27 provides support for the axle 49 in the process of installing the axle 49;

[0062] Step two: first install the axle 49 on the positioning unit, specifically, drive the jaw on the chuck 16 to move by the first driving part 13, clamp the left end of the axle 49 on the chuck 16; push the support base 17 towards the side close to the axle 49, so that the support base 17 moves on the first slide rail 8, move the jacking part to the pre-set position, then pass the bolt through the second positioning hole 23 and the first positioning hole 10 in turn, fix the support base 17 on the positioning plate 9 to prevent the support base 17 from moving, then extend the telescopic shaft of the pneumatic tailstock 20 by the second driving part 21, so as to drive the center 22 to move towards the side close to the axle 49, and clamp the right end of the axle 49 by the center 22; after the installation of the axle 49 is completed, the third driving part 26 drives the support plate 27 to move away from the side close to the axle 49, so that the support plate 27 moves away from the axle 49;

[0063] Step three: install the parts on each positioning part in turn, specifically, adsorb the parts on the clamping block 47 by the magnet on the clamping block 47;

[0064] Step four: adjust the position of the axle 49, specifically, start the second power part 12, the second power part 12 drives the chuck 16 to rotate, so as to drive the axle 49 to rotate, rotate the axle 49 to the pre-set angle, drive the second installation platform 7 to move left and right in the horizontal direction by the screw pair assembly 33, the second installation platform 7 drives the axle 49 to move synchronously, and move the axle 49 to the pre-set position.

[0065] Step five: place the parts on the axle 49 and weld, specifically, start the fourth driving part 37, the output shaft of the fourth driving part 37 is extended, drives the parts clamped on the clamping block 47 to move towards the side close to the axle 49, places the parts on the axle 49, moves the welding gun 6 to the pre-set position by the mechanical arm 5, welds the parts, after the welding is completed, the output shaft of the fourth driving part 37 is retracted, drives the clamping block 47 to move away from the side close to the axle 49, the clamping block 47 is separated from the parts, and the welding gun 6 is moved away;

[0066] Step six: when the next part needs to be welded, repeat steps four and five, at the same time, install the parts and the axle 49 on the other positioning and placing mechanism during the welding process, in order to prevent the arc light generated by the welding from adversely affecting the vision of the operator, start the fifth driving part 36 on the placing mechanism on the side of the installation, the fifth driving part 36 drives the folding soft curtain 35 to unfold and shield;

[0067] Step 8: After all the components are welded, the third drive component 26 moves the support plate 27 to the side closer to the axle 49, so that the support plate 27 contacts the bottom of the axle 49, providing support for the axle 49 during the unloading process; then the second drive component 21 drives the telescopic axis of the pneumatic tailstock 20 to move away from the axle 49, releasing the constraint of the tip 22 on the axle 49; then the first drive component 13 drives the chuck 16, so that the chuck 16 releases the axle 49 and removes the welded axle 49.

[0068] Example 2

[0069] Based on Example 1, such as Figures 12-13 As shown, a rotating mechanism is installed at the bottom of the No. 1 installation platform 2. The rotating mechanism can drive the No. 1 installation platform 2 to rotate. The rotating mechanism includes a base 1 and a No. 1 power component 3. The No. 1 power component 3 is installed at the center of the bottom of the base 1 by bolts. The output shaft of the No. 1 power component 3 can pass through the base 1 and is located above the base 1. A No. 1 reducer 4 is installed on the output shaft of the No. 1 power component 3 by bolts. The No. 1 reducer 4 is installed at the bottom of the No. 1 installation platform 2 by bolts. The No. 1 power component 3 can drive the No. 1 installation platform 2 to rotate. Due to the setting of the rotating mechanism, the installation position of the axle and parts, as well as the unloading position, are fixed. During the loading and unloading process, the operator does not need to walk back and forth. He only needs to load and unload parts in a fixed position, which reduces the labor intensity of the operator and makes the on-site loading and unloading position layout more reasonable.

[0070] The specific usage process includes the following steps:

[0071] Step 1: Adjust the position of the support part so that it is located at the center of the axle 49. Specifically, slide the base plate 24 on the first slide rail 8 and slide the support plate 27 to the center of the axle 49. Then, with the help of the pin, let the pin pass through the third positioning hole 29 and the first positioning hole 10 in sequence to fix the support part on the positioning plate 9. Start the third drive component 26. The third drive component 26 drives the support plate 27 to move towards the side closer to the axle 49 so that the support plate 27 contacts the bottom of the axle 49, providing support for the axle 49 during the installation process.

[0072] Step two: first install the axle 49 on the positioning unit, specifically, through the first driving piece 13 drive the chuck 16 on the jaw move, the left end of the axle 49 is clamped on the chuck 16, the support base 17 is pushed to the side close to the axle 49, so that the support base 17 moves on the first slide rail 8, the top tight part is moved to the pre-set position, and then the pin is used to make the pin pass through the second positioning hole 23 and the first positioning hole 10 in turn, so that the support base 17 is fixed on the positioning plate 9, preventing the support base 17 from moving, and then the second driving piece 21 drives the extension shaft of the pneumatic tailstock 20 to elongate, so as to drive the center 22 to move to the side close to the axle 49, and the right end of the axle 49 is abutted by the center 22; after the installation of the axle 49 is completed, the third driving piece 26 drives the support plate 27 to move away from the axle 49;

[0073] Step three: install the parts on each part placing part in turn, specifically, the magnets on the clamping block 47 are used to attract the parts on the clamping block 47;

[0074] Step four, adjust the position of the axle 49, specifically, start the second power piece 12, the second power piece 12 drives the chuck 16 to rotate, so as to drive the axle 49 to rotate, and the axle 49 is rotated to the pre-set angle, the second installation platform 7 is driven by the screw pair assembly 33 to move left and right in the horizontal direction, and the second installation platform 7 drives the axle 49 to move synchronously, so as to move the axle 49 to the pre-set position.

[0075] Step five: rotate the first installation platform 2, when the axle 49 and the parts are installed, start the first power piece 3, the first power piece 3 drives the first installation platform 2 to rotate, and the first installation platform 2 is rotated by 180°;

[0076] Step six: after the first installation platform 2 is rotated in place, the parts are placed on the axle 49 and welded, specifically, the fourth driving piece 37 is started, the output shaft of the fourth driving piece 37 is elongated, the parts clamped on the clamping block 47 are moved to the side close to the axle 49, the parts are placed on the axle 49, the welding gun 6 is moved to the pre-set position by the mechanical arm 5, the parts are welded, after the welding is completed, the output shaft of the fourth driving piece 37 is retracted, the clamping block 47 is moved away from the axle 49, the clamping block 47 is separated from the parts, and the welding gun 6 is moved away;

[0077] Step seven: when the next part needs to be welded, repeat step four and step six, at the same time, in the process of welding, install the parts and the axle 49 on the other positioning mechanism, in order to prevent the arc light generated by welding from causing adverse effects on the operator's vision, start the No. 5 drive 36 on the installation side positioning mechanism, the No. 5 drive 36 drives the folding soft curtain 35 to unfold and shield;

[0078] Step eight: when all the parts are welded, start the No. 1 power 3, the No. 1 power 3 drives the No. 1 installation platform 2 to continue rotating 180°, then start the No. 3 drive 26, the No. 3 drive 26 drives the support plate 27 to move towards the side close to the axle 49, so that the support plate 27 contacts the bottom of the axle 49, providing support for the axle 49 in the process of unloading; then, drive the telescopic shaft on the pneumatic tailstock 20 to move away from the side of the axle 49 through the No. 2 drive 21, release the constraint of the center 22 on the axle 49, then drive the chuck 16 through the No. 1 drive 13, so that the chuck 16 releases the axle 49, and takes down the welded axle 49.

[0079] Embodiment 3

[0080] On the basis of embodiment 2, the automatic welding system for small parts of the axle provided in embodiment 2 is arranged in a closed room, which can prevent welding smoke and arc light pollution.

[0081] Embodiment 4

[0082] Based on Embodiment 3, a control unit is also included. The control unit includes a controller. Power component 3, power component 12, drive component 13, drive component 21, drive component 36, drive component 47, drive component 5, lead screw assembly 33, and robotic arm 5 are all electrically connected to the controller. Drive component 13 and drive component 21 are semi-automatic. When welding components onto the axle, the controller controls drive component 26 to move, causing support plate 27 to move closer to the axle 49, moving it to a pre-set position to support the axle 49. Drive component 13 is then manually activated, and chuck 16 clamps the left end of the axle 49. Then, drive component 26 is manually activated. Drive component 21, the second drive component 21, moves the center point 22, which then presses the right end of the axle 49 against the axle. After the axle is installed, the controller controls the third drive component 26 to move, which moves the support plate 27 away from the axle 49, releasing the constraint of the support plate 27 on the axle 49. Next, the controller controls the second power component 12 to rotate the axle 49. After rotating the axle 49 to the pre-set position, the controller controls the lead screw assembly 33 to move, which drives the second mounting platform 7 to move horizontally, moving the axle 49 to the pre-set position. Then, the controller controls the first power component 3 to move, which drives the first mounting platform. 2. Rotate the first mounting platform 2 180°. The controller controls the fourth drive component 37 to move, extending the output shaft of the fourth drive component 37, which moves the component held on the clamping block 47 towards the side closer to the axle 49, placing the component on the axle 49. The controller controls the robotic arm 5 to rotate and moves the welding torch 6 to the pre-set position, welding the component onto the axle 49. After welding, the controller controls the robotic arm 5 and the fourth drive component 37 to move the welding torch 6 and the clamping block 47 away. Simultaneously, the component and the axle 49 are installed on another positioning and placement mechanism. To prevent the arc light generated by welding from adversely affecting the operator's vision, the controller controls the fifth drive component 3 on the component-side positioning and placement mechanism. 6. Drive component 36 of the fifth unit drives the folding soft curtain 35 to unfold and provide cover; the controller controls the first power component 3 to rotate the first mounting platform 2 by 180°. After the first mounting platform 2 is in position, the controller controls the third drive component 26 to move the support plate 27 closer to the axle 49, moving the support plate 27 to the pre-set position to provide support for the axle 49. The controller controls the second drive component 21 to move the top 22 away from the axle 49, releasing the top 22 from the axle 49. Finally, the controller controls the first drive component 13 to release the chuck 16 and remove the welded axle 49.In the embodiment, the controller selects a programmable controller of a programmable robot of Guangshu RH06A2-1490DE. In the process of installing the axle 49, the first driving member 13 and the second driving member 21 are manually controlled to prevent the axle from being installed in a skewed manner and to prevent a positioning error from being too large.

[0083] Example 5

[0084] The difference between the embodiment 4 and the embodiment 5 is that the control unit comprises a first control part and a second control part, the first control part is used for controlling the rotation and movement of the axle and also the rotation of the first mounting platform 2, the second control part is used for controlling the action of the placing unit and the welding unit and also the unfolding and folding of the folding soft curtain 35, specifically, the first control part comprises the first controller, the first power piece 3, the second power piece 12, the first driving piece 13, the second driving piece 21, the third driving piece 26 and the screw pair assembly 33 which are electrically connected with the first controller, the second control part comprises the second controller, the fourth driving piece 37, the fifth driving piece 36 and the mechanical arm 5 which are electrically connected with the second controller, wherein the first driving piece 13 and the second driving piece 21 belong to semi-automatic control; when welding the parts on the axle, the first controller controls the action of the third driving piece 26, the third driving piece 26 drives the support plate 27 to move to the side close to the axle 49, the support plate 27 is moved to the position set by the program in advance to provide support for the axle 49, the first driving piece 13 is manually started, the chuck 16 clamps the left end of the axle 49, then the second driving piece 21 is manually started, the second driving piece 21 drives the tailstock 22 to move, the right end of the axle 49 is abutted by the tailstock 22, after the installation of the axle is completed, the first controller controls the action of the third driving piece 26, the third driving piece 26 drives the support plate 27 to move to the side away from the axle 49 to release the constraint of the support plate 27 on the axle 49, then the first controller controls the action of the second power piece 12, the second power piece 12 drives the axle 49 to rotate, after the axle 49 is rotated to the position set by the program in advance, the first controller controls the action of the screw pair assembly 33, the screw pair assembly 33 drives the second mounting platform 7 to move in the horizontal direction, after the axle 49 is moved to the position set by the program in advance, the first controller controls the action of the first power piece 3, the first power piece 3 drives the first mounting platform 2 to rotate, the first mounting platform 2 is rotated by 180°, the second controller controls the action of the fourth driving piece 37, the output shaft of the fourth driving piece 37 is elongated to drive the parts clamped on the clamping block 47 to move to the side close to the axle 49, the parts are placed on the axle 49, the second controller controls the rotation of the mechanical arm 5 and moves the welding torch 6 to the position set by the program in advance, then the parts are welded on the axle 49, after the welding is completed, the second controller controls the action of the mechanical arm 5 and the fourth driving piece 37 to move away the welding torch 6 and the clamping block 47, while welding, the parts and the axle 49 are installed on another positioning placing mechanism, in order to prevent the arc light generated by the welding from causing adverse effects on the vision of the operator, the second controller controls the action of the fifth driving piece 36 on the placing mechanism on the placing side, the fifth driving piece 36 drives the folding soft curtain 35 to unfold to shield.The first controller controls the action of the first power component 3, the first power component 3 drives the first mounting platform 2 to continue rotating 180°, after the first mounting platform 2 is rotated to the position, the first controller controls the action of the third driving component 26, the third driving component 26 drives the support plate 27 to move to the side close to the axle 49, the support plate 27 is moved to the position set by the program in advance, the axle 49 is supported, the first controller controls the action of the second driving component 21, the second driving component 21 drives the center 22 to move to the side away from the axle 49, the constraint of the center 22 to the axle 49 is released, finally, the first controller controls the action of the first driving component 13, the chuck 16 releases the axle 49, and the welded axle 49 is taken down. In the embodiment, the first controller is a programmable controller of Mitsubishi FX3U-128MR, and the second controller is a programmable robot of Guangshu RH06A2-1490DE. In the process of mounting the axle 49, the first driving component 13 and the second driving component 21 are manually controlled, so as to prevent the axle from being mounted to be inclined and the positioning error to be too large.

[0085] Embodiment 6

[0086] Different from the embodiment 5, the second power component 12 is electrically connected with the second controller, the action of the second power component 12 is controlled by the second controller, the coordinated welding can be realized by controlling the second power component 12 through the second controller, the welding efficiency is improved, and the welding quality is ensured.

[0087] The above only describes the embodiments of the present application, and the specific technical solutions and / or common knowledge of characteristics in the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicability of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. An automated axle component welding system, comprising: The welding device comprises a first mounting platform, a welding unit and two positioning and placing mechanisms, the welding unit is located between the two positioning and placing mechanisms, each positioning and placing mechanism comprises a positioning unit, a moving unit and a placing unit, the positioning unit comprises a second mounting platform, a clamping rotating part is fixedly connected to the second mounting platform, a top pressing part is slidably arranged on the second mounting platform, the clamping rotating part and the top pressing part are oppositely arranged, the clamping rotating part is used for clamping and rotating the axle, and the top pressing part is used for pressing the axle, the moving unit can drive the second mounting platform to move horizontally, the placing unit comprises a support frame, a plurality of placing parts are detachably connected to the support frame, the placing parts are used for clamping and placing parts on the axle, and the axle is welded by matching the movement and rotation of the axle with the plurality of placing parts with fixed positions.

2. The system of claim 1, wherein: A rotating mechanism is arranged at the bottom of the first mounting platform, and the rotating mechanism can drive the first mounting platform to rotate.

3. The system of claim 2, wherein: The rotating mechanism comprises a base and a first power element, the first power element is fixedly connected to the bottom of the base, the output shaft of the first power element can pass through the base and is located above the base, a first speed reducer is arranged on the output shaft of the first power element, the first speed reducer is fixedly connected to the bottom of the first mounting platform, and the first power element can drive the first mounting platform to rotate.

4. The system according to any one of claims 1 or 3, wherein: A support part is slidably arranged on the second mounting platform, the support part is located between the clamping rotating part and the top pressing part, and the support part is used for supporting the axle.

5. The system of claim 4, wherein: The clamping rotating part comprises a second power element and a first driving element, a second speed reducer is arranged on the second power element, a chuck is arranged on the second speed reducer, the output shaft of the first driving element is fixedly connected to the chuck, and the first driving element is used for driving the jaw on the chuck to move.

6. The system of claim 5, wherein: The top pressing part comprises a support base, the support base is slidably arranged on the second mounting platform, a pneumatic tailstock is fixedly connected to the upper side of the support base, a second driving element is arranged on the side of the pneumatic tailstock away from the support part, the output shaft of the second driving element is fixedly connected to the telescopic shaft of the pneumatic tailstock, the second driving element is used for driving the telescopic shaft of the pneumatic tailstock to move, and a center is fixedly connected to the telescopic shaft on the side of the pneumatic tailstock close to the support part.

7. The system of claim 6, wherein: The support part comprises a connecting bottom plate, the connecting bottom plate is slidably arranged on the second mounting platform, a third driving element is fixedly connected to the upper side of the connecting bottom plate, and a support plate is fixedly connected to the output shaft of the third driving element.

8. The system of claim 7, wherein: The moving unit comprises a third mounting platform, the second mounting platform is slidably arranged on the third mounting platform, and a screw pair assembly is arranged on the third mounting platform, the screw pair assembly is used for driving the second mounting platform to slide on the third mounting platform.

9. The system of claim 8, wherein: Each placing part comprises a fourth driving element and a connecting plate, the connecting plate is in an inverted L shape, the connecting plate comprises a horizontal part and a vertical part which are sequentially connected, a fixed block is fixedly connected to the horizontal part, the fourth driving element is arranged on the vertical part, a swing rod is hingedly connected to the output shaft of the fourth driving element, the swing rod is hingedly connected to the upper side of the connecting plate, a connecting block is hingedly connected to the free end of the swing rod, a clamping block is detachably connected to the connecting block, and a plurality of magnets are fixedly connected to the clamping block.

10. The system of claim 9, wherein: The control unit comprises a controller, the first power component, the second power component, the first driving component, the second driving component, the third driving component, the fourth driving component, the screw pair assembly and the welding unit are electrically connected with the controller, wherein the first driving component and the second driving component belong to semi-automatic control.

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