CN215588313U

CN215588313U - Positioning device for assisting welding of automobile stamping parts

Info

Publication number: CN215588313U
Application number: CN202121963733.7U
Authority: CN
Inventors: 刘荣; 王新浩
Original assignee: Wuxi Shangfeng Machinery Co ltd
Current assignee: Wuxi Shangfeng Machinery Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-01-21
Anticipated expiration: 2031-08-19

Abstract

The utility model provides an auxiliary automobile punching part welded positioner, includes the workstation and is used for carrying out the closing device of vertical direction location to the stamping piece, still including being used for carrying out the clamping device of horizontal direction location to the stamping piece, clamping device includes lead screw, nut piece, connecting rod and chuck, the lead screw rotates to be connected the workstation bottom, be provided with two sections on the lead screw and revolve to opposite screw thread, the nut piece is provided with two and threaded connection two sections on the lead screw and revolve to opposite screw thread, the nut piece with workstation sliding fit, the one end of connecting rod is connected the nut piece, the other end is connected the chuck, this application has the effect that improves the positioning effect relatively poor, appears the problem of welding deviation easily.

Description

Positioning device for assisting welding of automobile stamping parts

Technical Field

The application relates to automobile punching part welding field especially relates to an auxiliary automobile punching part welded positioner.

Background

In modern industry, in particular in the automotive industry, the fastening of many stamping parts to one another is achieved by welding, which is already very well established in the industrial field, in which the stamping parts are usually positioned by positioning devices in order to stabilize them and to accurately weld them together.

Chinese patent publication No. CN111347208A discloses a positioning device, a welding system, and a welding method, wherein the positioning device includes a supporting table for supporting a stamping part to be welded and a pressing mechanism disposed above the supporting table, and during welding, the stamping part to be welded is positioned between the supporting table and the pressing mechanism, and then is welded.

The inventor finds that the positioning device only positions the stamping part needing to be welded in the vertical direction in the welding process, and the stamping part is likely to displace due to human factors in the welding process, so that the positioning effect is poor and welding deviation is easy to occur.

SUMMERY OF THE UTILITY MODEL

In order to improve the positioning effect relatively poor, appear welding deviation's problem easily, this application provides an auxiliary automobile punching part welded positioner.

The application provides a pair of supplementary automobile punching part welded positioner adopts following technical scheme:

the utility model provides an auxiliary automobile punching part welded positioner, includes the workstation and is used for carrying out the closing device of vertical direction location to the punching part, still includes clamping device, clamping device includes lead screw, nut piece, connecting rod and chuck, the lead screw rotates to be connected the workstation bottom, be provided with two sections on the lead screw and revolve to opposite screw thread, the nut piece is provided with two and threaded connection two sections on the lead screw and revolve to opposite screw thread, the nut piece with workstation sliding fit, the one end of connecting rod is connected the nut piece, the other end is connected the chuck.

By adopting the technical scheme, when welding, firstly, the stamping parts to be welded are pre-aligned and placed on the workbench, then the lead screw is rotated to enable the two nut blocks on the lead screw to move oppositely at the same time, the clamping heads simultaneously clamp the stamping parts, the horizontal positions of the stamping parts are fixed, the stamping parts are positioned in the vertical direction through the pressing device, and then the stamping parts are welded, so that the problems of poor positioning effect and welding deviation are solved; when the clamping device is not needed to clamp the stamping part in the horizontal direction, the screw rod is rotated reversely, the screw rod drives the nut block to move reversely at the same time, and the clamping on the stamping part is removed.

Optionally, the chuck is detachably connected with the connecting rod.

Through adopting above-mentioned technical scheme, when the chuck appears damaging, take off the chuck from the connecting rod to install new chuck on the connecting rod.

Optionally, a limiting opening is formed in the workbench, the nut is slidably arranged in the limiting opening, and the length direction of the limiting opening is consistent with the moving direction of the nut block.

Through adopting above-mentioned technical scheme, when removing the chuck, the nut piece slides in spacing mouthful under the driving about of lead screw, and spacing mouthful makes the nut piece can not follow the lead screw and rotate, has improved the stability of chuck for the nut piece can not break away from the lead screw simultaneously.

Optionally, closing device passes through pillar fixed connection and is in on the workstation, closing device includes location case and locating component, sliding connection has the rack on the inner wall of location case, be provided with the circular draw-in groove of a plurality of on the rack, the one end of rack is passed location bottom of the case portion and is connected locating component, the other end passes location roof portion, location incasement is connected with the support, be connected with the gear through the pivot on the support, the pivot with rotate between the support and connect, the one end of pivot is passed the location case, gear fixed connection is in the pivot, the gear with rack toothing, the fixed bolt that is provided with in location roof portion, the one end of bolt is inserted and is established in the draw-in groove.

By adopting the technical scheme, when the stamping part is positioned in the vertical direction, the bolt is moved out of the clamping groove, so that the rack can move up and down, the rotating shaft is rotated to drive the gear to rotate, the gear drives the rack to move downwards, the rack drives the positioning assembly to move downwards, and the stamping part is positioned in the vertical direction, so that the problems of poor positioning effect and welding deviation are solved; when the stamping part is not required to be compressed in the vertical direction, the rotating shaft is rotated reversely, the rotating shaft drives the gear to rotate, the rack moves upwards, the stamping part is far away from the positioning assembly, then one end of the bolt is inserted into the clamping groove, and the rack is prevented from moving downwards due to self gravity.

Optionally, the positioning assembly comprises a connecting plate, a spring, a positioning plate and a rubber sheet, the connecting plate is fixedly connected to the rack, the positioning plate is connected to the connecting plate through the spring, and one end, far away from the spring, of the positioning plate is connected to the rubber sheet.

Through adopting above-mentioned technical scheme, when carrying out the location of the ascending position of vertical side to the stamping workpiece, pass through the cooperation of rack and gear with locating component and move down, locating component is at the in-process that supports and presses the stamping workpiece, and the spring is compressed gradually, and the rubber sheet and stamping workpiece in close contact with realize the ascending location of stamping workpiece vertical side, and the setting of spring provides the buffering for the location process of stamping workpiece.

Optionally, the connecting plate is connected with a positioning sleeve, the positioning plate is connected with a lantern ring, the lantern ring is sleeved on the positioning sleeve in a sliding manner, and the spring is arranged in the positioning sleeve and the lantern ring.

By adopting the technical scheme, when the stamping piece is positioned in the vertical direction, the positioning sleeve and the lantern ring reduce the possibility that the spring is bent in the compression process.

Optionally, one end of the screw is fixedly connected with a first rotating wheel used for rotating the screw, and one end of the rotating shaft penetrating through the positioning box is connected with a second rotating wheel.

By adopting the technical scheme, when the chuck is moved, the first rotating wheel is rotated, and the first rotating wheel drives the screw rod to rotate so as to realize the movement of the chuck, so that a user can rotate the screw rod conveniently; in the process that the rotating gear drives the positioning component to press down, the second rotating wheel is manually rotated, so that a user can rotate the rotating shaft conveniently.

Optionally, the workbench is provided with an object placing groove and a groove, the groove is formed in the periphery of the object placing groove and communicated with the object placing groove, the bottom of the object placing groove is provided with a cushion pad, a cylinder is connected in the groove, a pressing sheet is connected to the cylinder and located in the object placing groove, a rubber pad is connected to the pressing sheet, the positioning plate is located right above the object placing groove, and the object placing groove is located between the two nut blocks.

Through adopting above-mentioned technical scheme, before the centre gripping stamping workpiece, place the stamping workpiece on the recess, start the cylinder, the cylinder orders about to support the preforming removal, support the bottom centre gripping of preforming with the stamping workpiece in the recess, support the preforming and tentatively fix the thing inslot of putting with the stamping workpiece, when carrying out the ascending location of vertical side to the stamping workpiece, the stamping workpiece is compressed tightly downwards by the locating plate, probably produce relative slip between stamping workpiece and the support pressing piece, the blotter of putting thing tank bottom portion plays the effect of support and buffering to the stamping workpiece this moment, after the welding, remove closing device to the compressing tightly of stamping workpiece and the centre gripping of clamping device to the stamping workpiece, at this moment, support the still centre gripping in the stamping workpiece bottom, the stamping workpiece also can not produce unstable phenomenon because of losing the support like this.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when welding, firstly, the stamping parts to be welded are pre-aligned and placed on the workbench, then the lead screw is rotated to enable the two nut blocks on the lead screw to move oppositely at the same time, the stamping parts are clamped by the clamping heads at the same time, the horizontal positions of the stamping parts are fixed, the stamping parts are positioned in the vertical direction through the pressing device, then the stamping parts are welded, and the problems that the positioning effect is poor and welding deviation is easy to occur are solved; when the clamping device is not needed to clamp the stamping part in the horizontal direction, the screw rod is rotated reversely, the screw rod drives the nut block to move reversely at the same time, and the clamping on the stamping part is removed;

2. when the stamping part is positioned in the vertical direction, the bolt is moved out of the clamping groove, so that the rack can move up and down, the rotating shaft is rotated, the rotating shaft drives the gear to rotate, the gear drives the rack to move downwards, the rack drives the positioning assembly to move downwards, and the stamping part is positioned in the vertical direction, so that the problems of poor positioning effect and easiness in welding deviation are solved; when the stamping part does not need to be pressed in the vertical direction, the rotating shaft is rotated reversely, the rotating shaft drives the gear to rotate, the rack is enabled to move upwards, the positioning assembly is far away from the stamping part, then one end of the plug pin is inserted into the clamping groove, and the rack is fixed in position, so that the rack is prevented from moving downwards due to self gravity;

3. before the centre gripping stamping workpiece, place the stamping workpiece on the recess, start the cylinder, the cylinder orders about to the preforming removal, the bottom centre gripping of stamping workpiece is lived to the preforming of supporting in the recess, support the preforming and put the thing inslot with the preliminary fixed of stamping workpiece, when carrying out the ascending location of vertical side to the stamping workpiece, the stamping workpiece is compressed tightly downwards by the locating plate, probably produce relative slip between stamping workpiece and the support piece, the blotter of putting thing tank bottoms portion plays the effect of support and buffering to the stamping workpiece this moment, after the welding, remove closing device to the compressing tightly of stamping workpiece and the centre gripping of clamping device to the stamping workpiece, at this moment, support the still centre gripping of stamping workpiece in the stamping workpiece bottom, the stamping workpiece also can not produce unstable phenomenon because of losing the support like this.

Drawings

FIG. 1 is a schematic diagram of a positioning device for assisting in welding automobile stampings.

Fig. 2 is a schematic view for embodying the structure of the holding device.

Fig. 3 is a schematic view for showing a positional relationship between the positioning assembly and the storage slot.

FIG. 4 is a schematic view for embodying the structure of the pressing means

Description of reference numerals:

1. a work table; 2. a clamping device; 3. a pressing device; 4. a storage groove; 5. a groove; 6. a cushion pad; 7. a cylinder; 8. pressing the sheet; 9. a rubber pad; 10. a limiting port; 11. a lead screw; 12. a nut block; 13. a connecting rod; 14. a chuck; 15. a positioning ring; 16. a first runner; 17. a screw; 18. a thread groove; 19. a non-slip mat; 20. a positioning box; 21. a positioning assembly; 22. a pillar; 23. a rack; 24. a gear; 25. a bolt; 26. a chute; 27. a slide bar; 28. a card slot; 29. a support; 30. a rotating shaft; 31. a second runner; 32. a connecting plate; 33. a spring; 34. positioning a plate; 35. a positioning sleeve; 36. a collar; 37. positioning a groove; 38. positioning blocks; 39. a rubber sheet.

Detailed Description

The embodiment of the application discloses auxiliary automobile punching part welded positioner. Referring to fig. 1, a positioning device for assisting welding of automobile stamping parts comprises a workbench 1, a clamping device 2 for positioning the stamping parts in the horizontal direction, and a pressing device 3 for positioning the stamping parts in the vertical direction.

Referring to fig. 1 and 2, be provided with on the workstation 1 and put thing groove 4 and recess 5, recess 5 is provided with four, four recess 5 use the central line of putting thing groove 4 as central annular array put thing groove 4 around and with put thing groove 4 intercommunication, put thing groove 4 bottom and be provided with blotter 6, recess 5 in-connection has cylinder 7, be connected with on the piston rod of cylinder 7 and support preforming 8, support preforming 8 to be located and put thing groove 4, support preforming 8 to be the arc, it has rubber pad 9 to bond on the preforming 8.

When the welding, will treat the stamping workpiece of welding earlier and carry out prealignment, then will treat the stamping workpiece of welding and place in putting thing groove 4, cylinder 7 orders about the piece 8 removal that supports, and four support pieces 8 realize preliminary rigidity to the stamping workpiece with the stamping workpiece centre gripping in putting thing groove 4.

Referring to fig. 1 and 2, a worktable 1 is provided with a limiting opening 10, the limiting opening 10 is arranged symmetrically with the central line of a storage groove 4 as the center, a clamping device 2 comprises a lead screw 11, a nut block 12, a connecting rod 13 and a chuck 14, the lead screw 11 is rotatably connected with the bottom of the worktable 1 through a positioning ring 15, the positioning ring 15 is fixedly connected with the bottom of the worktable 1, the lead screw 11 passes through the positioning ring 15 and is rotatably connected with the positioning ring 15, one end of the lead screw 11 is connected with a first rotating wheel 16, two threads with opposite rotating directions are arranged on the lead screw 11, the nut block 12 is provided with two nut blocks 12, the two nut blocks 12 are in threaded connection with the two threads with opposite rotating directions on the lead screw 11, the nut block 12 passes through the limiting opening 10 and is in sliding fit with the limiting opening 10, the length direction of the limiting opening 10 is consistent with the moving direction of the nut blocks 12, the storage groove 4 is arranged between the two nut blocks 12, the two nut blocks 12 are arranged symmetrically with the central line of the storage groove 4 as the center, nut piece 12 is connected to the one end of connecting rod 13, and the other end can be dismantled and connect chuck 14, is connected with screw rod 17 on the chuck 14, is provided with thread groove 18 on the connecting rod 13, and screw rod 17 and thread groove 18 screw-thread fit are used for the lateral wall that is used for the centre gripping stamping workpiece on the chuck 14 to be the arc setting, and the lateral wall that is used for the centre gripping stamping workpiece on the chuck 14 is connected with slipmat 19.

When the stamping part is positioned in the horizontal direction, the first rotating wheel 16 is rotated to enable the lead screw 11 to rotate, the rotation of the lead screw 11 drives the nut blocks 12 to move in the limiting opening 10 in the opposite direction, the clamping heads 14 connected to the two nut blocks 12 simultaneously clamp the stamping part, the anti-slip pads 19 on the clamping heads 14 increase friction for clamping the stamping part, when the stamping part does not need to be clamped, the first rotating wheel 16 is rotated in the opposite direction to enable the lead screw 11 to rotate in the opposite direction, the reverse rotation of the lead screw 11 drives the nut blocks 12 to move in the limiting opening 10 in the opposite direction, and the horizontal positioning of the stamping part is released; when damage occurs to chuck 14, the user may rotate chuck 14 to disengage threaded rod 17 from threaded slot 18, remove chuck 14 from connecting rod 13, and then install a new chuck 14 on connecting rod 13 by the threaded engagement of threaded rod 17 and threaded slot 18.

Referring to fig. 1 and 3, the pressing device 3 is fixedly connected to the worktable 1, the pressing device 3 includes a positioning box 20 and a positioning assembly 21, the positioning box 20 is connected to the worktable 1 through a support column 22, and the positioning assembly 21 is connected to the positioning box 20.

Referring to fig. 3 and 4, a rack 23 is slidably connected in the positioning box 20, one end of the rack 23 penetrates through the top of the positioning box 20, the other end of the rack 23 penetrates through the bottom of the positioning box 20, a sliding groove 26 is formed in the inner side wall of the positioning box 20, a sliding strip 27 is connected to the rack 23, the sliding strip 27 is in sliding fit with the sliding groove 26, a plurality of circular clamping grooves 28 are formed in the rack 23, a bolt 25 used for limiting the rack 23 is installed at the top of the positioning box 20, and one end of the bolt 25 is inserted into the clamping groove 28.

Referring to fig. 3 and 4, a bracket 29 is connected in the positioning box 20, a gear 24 is connected to the bracket 29 through a rotating shaft 30, the rotating shaft 30 is rotatably connected to the bracket 29, one end of the rotating shaft 30 penetrates through the positioning box 20 and is connected with a second rotating wheel 31, the gear 24 is fixedly connected to the rotating shaft 30, and the gear 24 is meshed with the rack 23.

Referring to fig. 3 and 4, the positioning assembly 21 includes a connecting plate 32, a spring 33, a positioning plate 34 and a rubber sheet 39, the connecting plate 32 is fixedly connected to one end of the rack 23 passing through the bottom of the positioning box 20, the positioning plate 34 is connected to the connecting plate 32 through the spring 33, a positioning sleeve 35 is connected to the connecting plate 32, a collar 36 is connected to the positioning plate 34, the collar 36 is slidably sleeved on the positioning sleeve 35, the spring 33 is located in the positioning sleeve 35 and the collar 36, two positioning grooves 37 are formed in the side wall of the positioning sleeve 35, one end of the collar 36 far away from the positioning plate 34 is connected to a positioning block 38, the positioning block 38 is located in the positioning groove 37, the positioning block 38 is slidably matched with the positioning groove 37, one end of the positioning plate 34 far away from the spring 33 is connected to the rubber sheet 39, and the positioning plate 34 is located right above the storage groove 4.

When the stamping part is positioned in the vertical direction, one end of the plug pin 25 is moved out of the clamping groove 28, then the second rotating wheel 31 is rotated, the second rotating wheel 31 drives the rotating shaft 30 to rotate, the rotating shaft 30 drives the gear 24 to rotate, the gear 24 drives the rack 23 to move downwards, the rack 23 moves downwards to enable the rubber sheet 39 to abut against the stamping part, then the rack 23 continues to move downwards to press the stamping part, the spring 33 is gradually compressed when the rubber sheet 39 abuts against the stamping part, the rubber sheet 39 is in close contact with the stamping part, the vertical positioning of the stamping part is realized, the spring 33 is set to provide buffer for the vertical positioning process of the stamping part, and the stamping part is prevented from being subjected to rigid impact; when the stamping part does not need to be positioned in the vertical direction, the second rotating wheel 31 is rotated reversely, the second rotating wheel 31 drives the rotating shaft 30 to rotate, the rotating shaft 30 drives the gear 24 to rotate, the rack 23 is moved upwards, the positioning plate 34 is far away from the stamping part, then one end of the bolt 25 is inserted into the clamping groove 28, the position of the rack 23 is fixed, and the rack 23 is prevented from moving downwards due to self gravity.

The implementation principle of the positioning device for assisting in welding automobile stamping parts in the embodiment of the application is as follows: during welding, the prealigned stamping part is placed in the storage groove 4, the bottom of the stamping part is clamped by the air cylinder 7 and the pressing sheet 8, then the first rotating wheel 16 is rotated, the first rotating wheel 16 drives the chucks 14 on the two nut blocks 12 to move oppositely, the stamping part is positioned in the horizontal direction, the limit of the bolt 25 on the rack 23 is released, the second rotating wheel 31 is rotated, the rack 23 moves downwards, the rubber sheet 39 presses the stamping part, and the stamping part is positioned in the vertical direction, so that during welding, the stamping part is positioned in the horizontal direction and the vertical direction, the problems of poor positioning effect and welding deviation are solved; when the stamping part is compressed in the vertical direction, relative sliding is possibly generated between the stamping part and the pressing sheet 8, and the buffer cushion 6 at the bottom of the storage groove 4 plays a role in supporting and buffering the stamping part; after welding, the vertical direction positioning of the pressing piece by the pressing device 3 and the horizontal direction positioning of the pressing piece by the clamping device 2 are removed, at the moment, the pressing piece 8 is still clamped at the bottom of the pressing piece, the unstable phenomenon of the pressing piece due to the fact that the supporting is lost can not occur, and finally the pressing piece 8 is separated from the pressing piece by the operation of the air cylinder 7, and the welded pressing piece is taken down.

Claims

1. The utility model provides an auxiliary automobile punching part welded positioner, includes workstation (1) and closing device (3) that are used for carrying out vertical direction location to the punching part, its characterized in that: still include clamping device (2), clamping device (2) include lead screw (11), nut piece (12), connecting rod (13) and chuck (14), lead screw (11) rotate to be connected workstation (1) bottom, be provided with two sections on lead screw (11) and revolve to opposite screw thread, nut piece (12) are provided with two and threaded connection and are in on lead screw (11) two sections revolve to opposite screw thread, nut piece (12) with workstation (1) sliding fit, the one end of connecting rod (13) is connected nut piece (12), the other end is connected chuck (14).

2. The positioning device for assisting in welding of automobile stamping parts according to claim 1, wherein: the clamping head (14) is detachably connected with the connecting rod (13).

3. The positioning device for assisting in welding of automobile stamping parts according to claim 2, wherein: be provided with spacing mouthful (10) on workstation (1), nut piece (12) slide to be set up in spacing mouthful (10), the length direction of spacing mouthful (10) with nut piece (12) moving direction is unanimous.

4. The positioning device for assisting in welding of automobile stamping parts according to claim 1, wherein: compressing device (3) pass through pillar (22) fixed connection and be in on workstation (1), compressing device (3) are including location case (20) and locating component (21), sliding connection has rack (23) on the inner wall of location case (20), be provided with a plurality of circular draw-in groove (28) on rack (23), the one end of rack (23) is passed location case (20) bottom and is connected locating component (21), and the other end passes location case (20) top, be connected with support (29) in location case (20), be connected with gear (24) through pivot (30) on support (29), pivot (30) with rotate between support (29) and be connected, the one end of pivot (30) is passed location case (20), gear (24) fixed connection be in pivot (30), the gear (24) is meshed with the rack (23), a bolt (25) is fixedly arranged at the top of the positioning box (20), and one end of the bolt (25) is inserted into the clamping groove (28).

5. The positioning device for assisting in welding of automobile stamping parts according to claim 4, wherein: locating component (21) includes connecting plate (32), spring (33), locating plate (34) and sheet rubber (39), connecting plate (32) fixed connection be in on rack (23), locating plate (34) with link to each other through spring (33) between connecting plate (32), locating plate (34) are kept away from sheet rubber (39) is connected to the one end of spring (33).

6. The positioning device for assisting in welding of automobile stamping parts according to claim 5, wherein: the connecting plate (32) is connected with a positioning sleeve (35), the positioning plate (34) is connected with a sleeve ring (36), the sleeve ring is slidably sleeved on the positioning sleeve (35), and the spring (33) is arranged in the positioning sleeve (35) and the sleeve ring (36).

7. The positioning device for assisting in welding of automobile stamping parts according to claim 6, wherein: one end fixedly connected with of lead screw (11) is used for rotating first runner (16) of lead screw (11), pivot (30) are passed the one end of locating box (20) is connected with second runner (31).

8. The positioning device for assisting in welding of automobile stamping parts according to claim 5, wherein: be provided with on workstation (1) and put thing groove (4) and recess (5), recess (5) set up put thing groove (4) around and with put thing groove (4) intercommunication, it is provided with blotter (6) to put thing groove (4) bottom, recess (5) in-connection has cylinder (7), be connected with on cylinder (7) and support preforming (8), support preforming (8) and be located and put thing groove (4), be connected with rubber pad (9) on supporting preforming (8), locating plate (34) are located put directly over thing groove (4), put thing groove (4) and be located in the middle of two nut pieces (12).