CN113319799A

CN113319799A - Reversible positioner

Info

Publication number: CN113319799A
Application number: CN202110711526.0A
Authority: CN
Inventors: 钱裕
Original assignee: Wuxi Ailite Engineering Equipment Co ltd
Current assignee: Wuxi Ailite Engineering Equipment Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-08-31

Abstract

The application relates to a reversible positioner, which comprises a bracket, a first positioning component and a second positioning component, wherein the first positioning component is used for positioning a workpiece; the two supports are arranged, the first positioning assembly is rotationally connected to one support through a rotating shaft, and the second positioning assembly is rotationally connected to the other support through the rotating shaft; be equipped with on the support and be used for carrying out the locking Assembly who locks to the countershaft, locking Assembly includes locking dish, installation piece, fitting pin and first spring, and the locking dish sets up in the pivot, is equipped with a plurality of locking groove on the locking dish edge, and the installation piece sets up on the support, and the installation piece is connected to the one end of first spring, and the fitting pin is connected to the other end, fitting pin and installation piece sliding fit, and when first spring was in natural state, the fitting pin was inserted and is established in the locking inslot. The problem that work piece assembly efficiency is lower has been improved to this application.

Description

Reversible positioner

Technical Field

The application relates to the field of automobile assembly, in particular to a reversible positioner.

Background

In automobile assembly, workpieces on an automobile production line are different in shape, and when the workpieces are assembled, the workpieces need to be positioned and then assembled in order to improve assembly accuracy.

However, when the workpiece is assembled, the front and back sides of the workpiece may be assembled, and for some workpieces requiring the assembly operation on the front and back sides, the workpiece is positioned by a common positioning device and is not convenient to turn over, and the other side cannot be turned over after the one side is assembled, so that the workpiece assembly efficiency is low.

Disclosure of Invention

In order to improve the lower problem of work piece assembly efficiency, this application provides a positioner can overturn.

The application provides a can overturn machine of shifting adopts following technical scheme:

a reversible positioner comprises a bracket, a first positioning component for positioning a workpiece and a second positioning component for positioning the workpiece;

the two supports are arranged, the first positioning assembly is rotationally connected to one support through a rotating shaft, and the second positioning assembly is rotationally connected to the other support through the rotating shaft;

be equipped with on the support and be used for carrying out the locking Assembly who locks to the countershaft, locking Assembly includes locking dish, installation piece, fitting pin and first spring, and the locking dish sets up in the pivot, is equipped with a plurality of locking groove on the locking dish edge, and the installation piece sets up on the support, and the installation piece is connected to the one end of first spring, and the fitting pin is connected to the other end, fitting pin and installation piece sliding fit, and when first spring was in natural state, the fitting pin was inserted and is established in the locking inslot.

By adopting the technical scheme, the workpiece is well installed through the first positioning assembly and the second positioning assembly, the force is applied to the locking pin, the first spring is compressed, the locking pin is separated from the locking groove, the locking disc is rotated to enable the workpiece to rotate, the force applied to the locking pin is removed after one surface of the workpiece is rotated to a position suitable for assembly, the locking pin is inserted into the corresponding locking groove under the elastic force of the first spring to position the workpiece so as to assemble one surface of the workpiece, when the other surface of the workpiece needs to be assembled, the locking pin is moved out of the locking groove, the locking disc is rotated to enable the workpiece to rotate, the other surface of the workpiece is rotated to a position suitable for assembly, the locking pin is inserted into the locking groove to position the workpiece so as to assemble the other surface of the workpiece, and the purpose of assembling the workpiece after one surface is assembled and then the other surface is turned over and assembled is achieved, the assembly efficiency is higher.

Optionally, be equipped with the centre gripping subassembly on the installation piece, the centre gripping subassembly includes round platform shape slider, the slide bar, the second spring, the supporting rod, grip block and pulley, the second spring coupling is on the installation piece, round platform shape slider bottom is connected to the one end of slide bar, the second spring is connected to the other end, slide bar and installation piece sliding fit, the supporting rod sets up to two, two supporting rods articulate on the installation piece, the supporting rod is located the both sides of locking dish and is located the both sides of round platform shape slider, the one end of supporting rod is articulated with the grip block, the other end is rotated and is connected the pulley, when the second spring is in natural state, the pulley on two supporting rods all supports tight round platform shape slider lateral wall, the tight locking dish of grip block clamp on two supporting rods.

Through adopting above-mentioned technical scheme, when the work piece position is adjusted to needs, to slide bar and round platform shape slider application of force, the second spring is compressed, round platform shape slider moves down, the supporting rod can rotate, the grip block no longer presss from both sides tight locking dish, make things convenient for the rotation of locking dish, so that adjust the work piece position, with work piece position control back, remove the application of force to slide bar and round platform shape slider, round platform shape slider shifts up under the spring action of second spring, the pulley supports tightly with round platform shape slider lateral wall, the grip block is tight with locking dish clamp, thereby improve the stability of locking dish, the rotation phenomenon appears in the work piece when avoiding the assembly, help improving assembly efficiency.

Optionally, the installation block is further provided with a synchronous adjusting assembly, the synchronous adjusting assembly comprises a synchronous adjusting rod, a first synchronous wheel and a second synchronous wheel, one end of the synchronous adjusting rod is hinged to the installation block through a first hinged rod, the first synchronous wheel is rotatably connected to the synchronous adjusting rod and located above the circular truncated cone-shaped sliding block, the synchronous adjusting rod is provided with a waist-shaped groove, the locking pin penetrates through the waist-shaped groove, the second synchronous wheel is rotatably connected to the locking pin, and the synchronous adjusting rod is located above the second synchronous wheel.

By adopting the technical scheme, when the position of a workpiece needs to be adjusted, force is applied to the synchronous adjusting rod to enable the synchronous adjusting rod to rotate downwards, in the rotating process of the synchronous adjusting rod, the first synchronous wheel moves downwards to apply pressure to the truncated cone-shaped sliding block, the truncated cone-shaped sliding block moves downwards, the clamping block is loosened and does not clamp the locking disc, the synchronous adjusting rod presses the second synchronous wheel downwards, the second synchronous wheel drives the locking pin to move, the locking pin moves out of the locking groove, so that the positioning of the locking disc is rapidly released, the position of the workpiece is adjusted, after the position of the workpiece is adjusted to a proper position, the force applied to the synchronous adjusting rod is released, the locking pin is inserted into the corresponding locking groove under the elastic force of the first spring, the truncated cone-shaped sliding block moves upwards, the clamping block re-clamps the locking disc, the purpose of rapidly positioning the locking disc is achieved, and the purpose of controlling the clamping assembly and the locking pin simultaneously is achieved, the adjusting speed is increased, and the assembly efficiency is improved.

Optionally, be connected with firm adjusting part on the installation piece, firm adjusting part includes firm piece, firm pole and firm board, firm piece is articulated with the synchronization regulation pole through the second hinge bar, the central line of first hinge bar and the central line mutually perpendicular of second hinge bar, firm pole links to each other with firm piece, firm board is connected on the installation piece, be equipped with firm groove on the firm board, firm groove is including the unblock groove, locking groove and intercommunication groove, the one end and the locking groove intercommunication in intercommunication groove, the other end and the unblock groove intercommunication, the length in unblock groove is greater than the length in locking groove, firm pole runs through firm groove.

By adopting the technical scheme, when the locking disc needs to be unlocked, the stabilizing rod is moved into the unlocking groove, the stabilizing rod is applied with force downwards and drives the synchronous adjusting rod to rotate downwards, thereby realizing the release of the positioning of the locking disc, when the locking disc needs to be positioned, the force applied to the stabilizing rod is released, the first spring and the second spring are restored to the natural state, the stabilizing rod is lifted upwards, then the stabilizing rod is rotated, the stabilizing rod is moved into the locking groove from the unlocking groove, because the length of the unlocking groove is larger than that of the locking groove, the length of the locking groove is short, the stabilizing rod cannot move downwards in the locking groove in a large range, when the staff touch the stabilizing rod by mistake, the clamping of the clamping block to the locking plate can not be released, the locking pin can not be separated from the locking groove, the stability of the locking disc is further improved, and the workpiece rotation in the assembling process is avoided.

Optionally, the second hinge rod is sleeved with a first torsion spring, the stabilizing block is provided with a butt rod, one end of the first torsion spring is fixedly connected with the synchronous adjusting rod, the other end of the first torsion spring is tightly abutted to the butt rod, and when the first torsion spring is in a natural state, the stabilizing rod is located in the locking groove.

By adopting the technical scheme, when the locking disc needs to be unlocked, the stabilizing rod is lifted upwards and then rotated, the stabilizing rod is moved into the unlocking groove, and in the process, the first torsion spring is deformed under stress and then pressed downwards, so that the locking disc is unlocked; when needs are fixed a position locking dish, when the firm pole removes to the junction in intercommunication groove and unblock groove, remove the application of force to firm pole, first torsion spring resumes to natural state, and firm pole automatic movement is to the locking inslot to make firm pole enter into the locking inslot fast.

Optionally, a counterweight wheel is connected to the rotating shaft, and a counterweight block is detachably connected to the counterweight wheel.

Through adopting above-mentioned technical scheme, the setting of balancing weight can help the work piece to keep balance, and the convenience helps improving assembly efficiency to the regulation of work piece position.

Optionally, the weight wheel is detachably connected with the rotating shaft.

Through adopting above-mentioned technical scheme, if the counterweight wheel damages, then can change the counterweight wheel that damages at any time, bring the convenience for the user.

Optionally, the first positioning component comprises a first positioning seat and a first positioning piece, the first positioning seat is arranged on the rotating shaft, the first positioning piece comprises a first locking block, a locking handle, a linkage rod, a first positioning pin and a first positioning strip, the first locking block is connected to the first positioning seat, the locking handle is hinged to the first locking block, one end of the linkage rod is hinged to the locking handle, the other end of the linkage rod is hinged to the first positioning strip, the first positioning pin is connected to the first positioning strip, and the first positioning pin penetrates through the first positioning seat and is in sliding fit with the first positioning seat.

Through adopting above-mentioned technical scheme, when installing the work piece, rotate the locking handle earlier, the locking handle drives the gangbar and removes, the gangbar drives first locating bar and removes, first locating bar drives first locating pin orientation and keeps away from the removal of second locating component direction, dodge the space of placing the work piece, after the work piece is put between first locating component and second locating component, rotate the locking handle again, the locking handle drives the gangbar and first locating bar removes, first locating pin orientation is close to the removal of work piece direction and inserts and establishes on the work piece, accomplish the location of first locating component to the work piece.

Optionally, the second positioning assembly comprises a second mounting plate, a sliding block, a second positioning seat and a second positioning part, the second mounting plate is arranged on the rotating shaft, the sliding block is connected to the second mounting plate in a sliding mode, the second positioning seat is arranged on the sliding block, the second positioning part comprises a second positioning pin, a locking plate, a first rack and a second rack, the second positioning pin is arranged on the second positioning seat, one end of the locking plate is hinged to the second positioning seat through a third hinge rod, the other end of the locking plate is connected with the first rack, the second rack is arranged on the second mounting plate, the position of the third hinge rod in the vertical direction is located above the second rack, and when teeth on the first rack are clamped between two adjacent teeth on the second rack, the second rack is located between the first rack and the third hinge rod.

Through adopting above-mentioned technical scheme, when the installation work piece, the sliding block slides, make the sliding block move towards keeping away from first locating component direction, dodge the position of placing the work piece, after the work piece is put between first locating component and second locating component, at the sliding block, make the second locating pin insert on the work piece, to the work piece location, rotate the locking plate again, the locking plate drives first rack and removes, make the tooth joint on the first rack between two adjacent teeth on the second rack, thereby to the sliding block location, avoid the sliding block to remove, influence the location of second locating component to the work piece.

Optionally, the rotating shafts on the two brackets are connected through a synchronizing rod.

Through adopting above-mentioned technical scheme, the setting of synchronizing bar has improved the pivoted synchronism of pivot on two supports, makes the process of upset work piece more smooth and easy.

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

1. the first positioning component and the second positioning component are used for installing the workpiece, the locking pin is applied with force, the first spring is compressed, the locking pin is separated from the locking groove, the locking disc is rotated to enable the workpiece to rotate, one surface of the workpiece is rotated to a position suitable for assembly, the force application to the locking pin is released, the locking pin is inserted into the corresponding locking groove under the action of the elastic force of the first spring to position the workpiece so as to assemble one surface of the workpiece, when the other surface of the workpiece needs to be assembled, the locking pin is moved out of the locking groove, the locking disc is rotated to enable the workpiece to rotate, the other surface of the workpiece is rotated to a position suitable for assembly, and then the locking pin is inserted into the locking groove, the workpiece is positioned so as to be convenient for assembling the other surface of the workpiece, the purpose of assembling the workpiece with one surface being turned over and then assembling the other surface is realized, and the assembling efficiency is higher;

2. when the position of a workpiece needs to be adjusted, force is applied to the synchronous adjusting rod to enable the synchronous adjusting rod to rotate downwards, in the rotating process of the synchronous adjusting rod, the first synchronous wheel moves downwards to apply pressure to the truncated cone-shaped sliding block, the truncated cone-shaped sliding block moves downwards, the clamping block is loosened and does not clamp the locking disc any more, the synchronous adjusting rod presses the second synchronous wheel downwards, the second synchronous wheel drives the locking pin to move, the locking pin is moved out of the locking groove, so that the positioning of the locking disc is quickly released, the position of the workpiece is adjusted to be proper, the force applied to the synchronous adjusting rod is released, the locking pin is inserted into the corresponding locking groove under the elastic force of the first spring, the truncated cone-shaped sliding block moves upwards, the clamping block quickly clamps the locking disc again, the purpose of quickly positioning the locking disc is achieved, the purpose of simultaneously controlling the clamping assembly and the locking pin is achieved, and the adjusting speed is accelerated, the assembly efficiency is improved;

3. the setting of balancing weight can help the work piece to keep balanced, and the convenience helps improving assembly efficiency to the regulation of work piece position.

Drawings

Fig. 1 is a schematic structural diagram for embodying an invertible positioner in the embodiment of the present application.

Fig. 2 is an enlarged view of a portion a of fig. 1 for embodying the first positioning member.

Fig. 3 is a schematic structural diagram for showing a positional relationship between the first position-limiting piece and the first locking block in the embodiment of the present application.

Fig. 4 is a schematic structural diagram for showing a positional relationship between the anti-skid block and the first positioning strip in the embodiment of the application.

Fig. 5 is a schematic structural diagram for showing a positional relationship between the second limiting piece and the second mounting plate in the embodiment of the present application.

Fig. 6 is a schematic structural diagram for showing a positional relationship between the limiting strip and the hinge seat in the embodiment of the present application.

Fig. 7 is a schematic structural diagram for showing a positional relationship between the second torsion spring and the hinge seat in the embodiment of the present application.

Fig. 8 is a schematic structural diagram for showing a positional relationship between the first spring and the mounting block in the embodiment of the present application.

Fig. 9 is a schematic structural diagram for showing a positional relationship between the unlocking groove and the locking groove in the embodiment of the present application.

Fig. 10 is a schematic structural diagram for showing a positional relationship between the locking sleeve and the stepped shaft in the embodiment of the present application.

Fig. 11 is a schematic structural diagram for showing a positional relationship between the weight wheel and the locking disk in the embodiment of the present application.

Fig. 12 is an enlarged view of a portion B of fig. 11 for showing a positional relationship between the interlocking bar and the stepped shaft.

Fig. 13 is a schematic structural diagram for embodying the mounting block in the embodiment of the present application.

Fig. 14 is a schematic structural diagram for showing a positional relationship between the locking pin and the synchronization adjusting lever in the embodiment of the present application.

Fig. 15 is a schematic structural diagram for showing a positional relationship between the clamping block and the locking disk in the embodiment of the present application.

Fig. 16 is a schematic structural diagram for showing a positional relationship between the second guide bar and the truncated cone shaped slider in the embodiment of the present application.

Fig. 17 is a schematic structural diagram for showing a positional relationship between the second synchronizing wheel and the third pad in the embodiment of the present application.

Fig. 18 is a schematic structural diagram for showing a positional relationship between the counterweight and the counterweight wheel in the embodiment of the present application.

Description of reference numerals:

1. a base; 2. a support; 3. a material receiving box; 4. a rotating shaft; 5. a synchronization lever; 6. a straight rod; 7. bending a rod; 8. a first positioning plate; 9. a second positioning plate; 10. a first mounting seat; 11. a first locking block; 12. locking the handle; 13. a linkage rod; 14. a first positioning pin; 15. a first positioning bar; 16. a first limit rod; 17. a first stopper; 18. a first locking lever; 19. a hinge sleeve; 20. a first limiting sheet; 21. a limiting groove; 22. a card interface; 23. a gasket; 24. an arc-shaped slot; 25. anti-skid blocks; 26. an anti-slip threaded rod; 27. a plug; 28. a jack; 29. a second mounting plate; 30. a sliding block; 31. a slide rail; 32. a second limiting sheet; 33. a third positioning plate; 34. a fourth positioning plate; 35. a second positioning pin; 36. a locking plate; 37. a first rack; 38. a second rack; 39. a connecting plate; 40. a first backing plate; 41. a hinged seat; 42. a third hinge rod; 43. a pulling block; 44. a handle; 45. a second torsion spring; 46. a second limiting block; 47. a limiting strip; 48. a first bolt; 49. a second bolt; 50. opening the gap; 51. cushion blocks; 52. a locking disc; 53. mounting blocks; 54. a locking pin; 55. a first spring; 56. a weight wheel; 57. a stepped shaft; 58. a first linkage groove; 59. a locking sleeve; 60. a second clamping hole; 61. a second linkage groove; 62. a linkage bar; 63. mounting a sheet; 64. a locking groove; 65. plugging screws; 66. a second backing plate; 67. a first connecting groove; 68. a second connecting groove; 69. a third connecting groove; 70. a first communication hole; 71. a first plug bolt; 72. a first connecting ring; 73. a first guide bar; 74. a guide block; 75. a first guide hole; 76. a first guide sleeve; 77. an inclined surface; 78. a truncated cone shaped slider; 79. a slide bar; 80. a second spring; 81. a clamping rod; 82. a clamping block; 83. a pulley; 84. a second guide bar; 85. a fourth connecting groove; 86. a fifth connecting groove; 87. a second guide hole; 88. a second guide sleeve; 89. plugging the column; 90. a second connection ring; 91. a third connecting ring; 92. a third limiting block; 93. a support block; 94. a groove; 95. a rubber sheet; 96. a synchronous adjusting rod; 97. a first synchronizing wheel; 98. a second synchronizing wheel; 99. a waist-shaped groove; 100. a third base plate; 101. a stabilizing block; 102. a stabilizing rod; 103. a stabilizing plate; 104. a protection plate; 105. a first torsion spring; 106. a butting rod; 108. unlocking the groove; 109. a locking groove; 110. a communicating groove; 111. a balancing weight; 112. a first arc-shaped block; 113. a second arc-shaped block; 114. a synchronization sheet; 115. a limiting plane; 116. clamping a plane; 117. and (4) connecting the blocks.

Detailed Description

The embodiment of the application discloses a machine of shifting can overturn. Referring to fig. 1, the reversible positioner comprises a base 1, a bracket 2, a first positioning assembly for positioning a workpiece, and a second positioning assembly for positioning the workpiece.

Referring to fig. 1, the number of the brackets 2 is two, the brackets 2 are arranged at two ends of the base 1, the two ends of the base 1 are also connected with the material receiving boxes 3 so as to contain parts, and the material receiving boxes 3 at two ends of the base 1 are located between the two brackets 2. First locating component rotates through pivot 4 to be connected on a support 2, and second locating component rotates through pivot 4 to be connected on another support 2, and first locating component and second locating component cooperation are used and are fixed a position the work piece. The rotating shafts 4 on the two supports 2 are connected through the synchronizing rods 5, the synchronizing plates 114 are connected to the rotating shafts 4, the synchronizing rods 5 comprise straight rods 6 and bent rods 7, one ends of the bent rods 7 are connected with the synchronizing plates 114, the other ends of the bent rods 7 are connected with the straight rods 6, so that the straight rods 6 are far away from the central line of the rotating shafts 4, and workpieces are conveniently located.

Referring to fig. 2 and 3, the first positioning assembly includes a first positioning seat and a first positioning member. First locating seat includes first locating plate 8 and second locating plate 9, and first locating plate 8 sets up with 9 integrated into one piece of second locating plate, first locating

plate

8 and 9 mutually perpendicular of second locating plate, and first locating plate 8 sets up through first mount pad 10 on pivot 4, and first mount pad 10 sets up on pivot 4, and first locating plate 8 sets up on first mount pad 10.

Referring to fig. 2 and 3, the first positioning element includes a first locking block 11, a locking handle 12, a linkage rod 13, a first positioning pin 14, a first positioning strip 15, a first limiting rod 16 and a first limiting block 17.

Referring to fig. 3 and 4, the first locking block 11 is connected to the first positioning plate 8, the locking handle 12 is hinged to the first locking block 11 through a first locking rod 18, the locking handle 12 is provided with a hinge hole, the locking handle 12 is connected to a hinge sleeve 19 through the hinge hole, the hinge sleeve 19 is located in the hinge hole, one end of the first locking rod 18 is connected to a first limiting piece 20, one side of the first limiting piece 20 is provided with a limiting plane 115, the first locking block 11 is provided with a limiting groove 21, the first locking rod 18 sequentially penetrates through the first locking block 11, the hinge sleeve 19 and the first limiting piece 17, one side of the first limiting piece 20 provided with the limiting plane 115 is located in the limiting groove 21, and the limiting plane 115 abuts against the side wall of the limiting groove 21 to prevent the first locking rod 18 from rotating, referring to fig. 2 and 4, the first limiting piece 17 is provided with a clamping opening 22, the first locking rod 18 is provided with a clamping plane 116 adapted to the clamping opening 22, the joint interface 22 is connected to the first locking rod 18 through the joint plane 116, one end of the first locking rod 18, which is far away from the first limiting piece 20, is connected with a bolt through a thread, a gasket 23 is sleeved on the bolt, the gasket 23 abuts against the first limiting block 17, refer to fig. 3 and fig. 4, an arc-shaped groove 24 is arranged on the locking handle 12, the circle center of the circle where the arc-shaped groove 24 is located coincides with the central line of the first locking rod 18, the first limiting rod 16 is arranged on the first limiting block 17 and inserted into the first arc-shaped groove 24, so that the rotation range of the locking handle 12 is limited, one end of the linkage rod 13 is hinged to the locking handle 12, the other end of the linkage rod is hinged to the first positioning strip 15, the first positioning pin 14 is connected to the first positioning strip 15, and the first positioning pin 14 penetrates through the second positioning plate 9 and is in sliding fit with the second positioning plate 9.

Referring to fig. 4, be connected with the anti-skidding piece on the first gib block 15, the anti-skidding piece includes non slipping spur 25, anti-skidding threaded rod 26, plug 27 and jack 28, and non slipping spur 25 connects on first gib block 15, is equipped with the screw hole on the non slipping spur 25, and anti-skidding threaded rod 26 passes through screw hole threaded connection on non slipping spur 25 and runs through non slipping spur 25, and plug 27 sets up on anti-skidding threaded rod 26, and plug 27 inserts and establishes in jack 28 to fix a position first gib block 15.

When the position of the first positioning pin 14 is adjusted, the anti-skid threaded rod 26 is rotated, the plug 27 is moved out of the jack 28, the positioning of the first positioning strip 15 is released, the locking handle 12 is rotated, the locking handle 12 drives the linkage rod 13 to move, the linkage rod 13 drives the first positioning strip 15 to move, the first positioning strip 15 is separated from the second positioning plate 9, and the first positioning strip 15 drives the first positioning pin 14 to move towards the direction far away from the second positioning component; when the end of the arc-shaped groove 24 abuts against the first limiting rod 16, the locking handle 12 cannot continue to rotate, so that the rotation range of the locking handle 12 is limited, and the first positioning pin 14 is prevented from being separated from the second positioning plate 9 due to the fact that the rotation range of the locking handle 12 is large.

When needing to remove first locating pin 14 to the primary importance, rotate locking handle 12 again, locking handle 12 drives gangbar 13 and first locating bar 15 and removes, first locating pin 14 moves towards being close to second locating component direction, first locating bar 15 conflicts second locating plate 9, first locating pin 14 removes back primary importance, rotate anti-skidding threaded rod 26 again, insert plug 27 in jack 28, fix a position first locating bar 15, avoid someone mistake to touch locking handle 12, lead to first locating pin 14 to take place to remove.

Referring to fig. 5, the second positioning assembly includes a second mounting plate 29, a sliding block 30, a second positioning seat and a second positioning member.

Referring to fig. 5 and 6, the second mounting plate 29 is disposed on the rotating shaft 4, the sliding block 30 is slidably connected to the second mounting plate 29, the second mounting plate 29 is connected to a slide rail 31, the sliding block 30 is in sliding fit with the slide rail 31, the second mounting plate 29 is connected to a second limiting piece 32 for limiting the sliding block 30, the second positioning seat is disposed on the sliding block 30 and comprises a third positioning plate 33 and a fourth positioning plate 34, the third positioning plate 33 is connected to the fourth positioning plate 34, and the third positioning plate 33 is perpendicular to the fourth positioning plate 34.

Referring to fig. 5 and 6, the second positioning member includes a second positioning pin 35, a locking plate 36, a first rack 37 and a second rack 38, the second positioning pin 35 is disposed on the third positioning plate 33 through a connecting plate 39, the connecting plate 39 is connected to the third positioning plate 33, the second positioning pin 35 is connected to the connecting plate 39, the fourth positioning plate 34 is connected to a first cushion plate 40, the first cushion plate 40 is connected to a hinge seat 41, the cross section of the hinge seat 41 is U-shaped, referring to fig. 6 and 7, one end of the locking plate 36 is hinged to the hinge seat 41 through a third hinge rod 42, one end of the locking plate 36 hinged to the hinge seat 41 is further connected to a pulling block 43, the pulling block 43 and the locking plate 36 are integrally formed, the pulling block 43 is connected to a handle 44, the third hinge rod 42 is sleeved with a second torsion spring 45, one end of the second torsion spring 45 is fixedly connected to the hinge seat 41, and the other end is abutted to the pulling block 43, a second limiting block 46 is connected on the wrenching block 43, a limiting strip 47 for limiting the second limiting block 46 is connected on the hinged seat 41, a first bolt 48 and a second bolt 49 are also connected on the hinged seat 41, the first bolt 48 and the second bolt 49 both penetrate through two side walls of the hinged seat 41 and are in threaded connection with nuts so as to keep the shape of the hinged seat 41, a notch 50 for limiting is also arranged on the locking plate 36, one end of the locking plate 36, which is far away from the third hinge rod 42, is connected with the first rack 37, a connecting block 117 is connected on the first rack 37, the connecting block 117 and the first rack 37 are integrally formed, the connecting block 117 is connected on the locking plate 36, the second rack 38 is arranged on the second mounting plate 29 through a cushion block 51, the cushion block 51 is connected on the second mounting plate 29, the second rack 38 is connected on the cushion block 51, the second rack 38 is positioned between the first rack 37 and the third hinge rod 42, the third hinge rod 42 is located above the second rack 38 at the vertical position, when the second torsion spring 45 is in a natural state, the teeth on the first rack 37 are clamped between two adjacent teeth on the second rack 38, and the first bolt 48 is located in the opening 50 and collides against the side wall of the opening 50, so that the locking plate 36 is limited, and people are prevented from mistakenly touching the handle 44, and the first rack 37 is caused to extrude the second rack 38.

When the position of the second positioning pin 35 is adjusted, the handle 44 is pulled, the second torsion spring 45 deforms, the handle 44 drives the locking plate 36 to rotate through the pulling block 43, so as to drive the first rack 37 to rotate, the first rack 37 is separated from the second rack 38, the positioning of the sliding block 30 is released, the sliding block 30 slides, the sliding block 30 drives the second positioning pin 35 to move through the second positioning seat, so as to adjust the position of the second positioning pin 35, after the second positioning pin 35 is adjusted to a proper position, the handle 44 is released, the second torsion spring 45 returns to a natural state, the locking plate 36 rotates under the elasticity of the second torsion spring 45, the first rack 37 rotates along with the locking plate 36, so that the teeth on the first rack 37 are clamped between two adjacent teeth on the second rack 38, so as to position the sliding block 30, and further position the second positioning pin 35.

Referring to fig. 8 and 9, a locking assembly for locking the rotation shaft 4 is coupled to the bracket 2 coupled to the second positioning assembly, and includes a locking disc 52, a mounting block 53, a locking pin 54, and a first spring 55.

Referring to fig. 10 and 11, a locking disc 52 is arranged on a rotating shaft 4, the rotating shaft 4 is further connected with a balance weight wheel 56, the locking disc 52 and the balance weight wheel 56 are both detachably connected with the rotating shaft 4, the rotating shaft 4 is connected with a stepped shaft 57, the end with the larger diameter of the stepped shaft 57 is connected with the rotating shaft 4 and rotatably connected with a support 2, the part with the smaller diameter of the stepped shaft 57 is provided with a first linkage groove 58, the first linkage groove 58 is positioned on the side wall of the stepped shaft 57, the length direction of the first linkage groove 58 is the same as the length direction of the stepped shaft 57, referring to fig. 10 and 12, the locking disc 52 is provided with a first clamping hole, the locking disc 52 is connected with a locking sleeve 59, the locking sleeve 59 is positioned in the locking hole, the balance weight wheel 56 is provided with a second clamping hole 60, the side wall of the second clamping hole 60 and the side wall of the locking sleeve 59 are provided with a second linkage groove 61, the locking sleeve 59 and the locking sleeve 56 are both sleeved on the part with the smaller diameter of the stepped shaft 57, the lock sleeve 59 is located between the larger one end of step shaft 57 diameter and the counterweight wheel 56, the lock sleeve 59 supports the larger one end of step shaft 57 diameter tightly, the second linkage groove 61 sets up and UNICOM with first linkage groove 58 relatively, it is equipped with linkage strip 62 to insert between first linkage groove 58 and the second linkage groove 61, one side of linkage strip 62 is located first linkage groove 58, the opposite side is located second linkage groove 61, the smaller one end of step shaft 57 diameter is passed through the screw and is detachably connected with mounting plate 63, the screw runs through mounting plate 63 threaded connection on step shaft 57, mounting plate 63 supports counterweight wheel 56 tightly.

Referring to fig. 9 and 10, a plurality of locking grooves 64 are formed in the edge of the locking disc 52, corresponding numbers are arranged at positions, corresponding to the locking grooves 64, on the locking disc 52, so that the rotation range of the locking disc 52 can be conveniently known, a blocking screw 65 is detachably connected to the locking disc 52 through threads, the blocking screw 65 is located in the locking groove 64, the mounting block 53 is arranged on the support 2 through a second backing plate 66, the second backing plate 66 is connected to the support 2, and the mounting block 53 is connected to the second backing plate 66.

Referring to fig. 13, a first connecting groove 67, a second connecting groove 68 and a third connecting groove 69 are formed in the mounting block 53, the first connecting groove 67 is communicated with the second connecting groove 68, the second connecting groove 68 is located above the third connecting groove 69 in the vertical direction, the second connecting groove 68 is located on the same side of the mounting block 53 as the third connecting groove 69, a first connecting hole 70 communicated with the second connecting groove 68 and the third connecting groove 69 is formed in the mounting block 53, a fourth connecting groove 85 and a fifth connecting groove 86 are formed in the side, away from the second connecting groove 68, of the mounting block 53, the fourth connecting groove 85 is communicated with the first connecting groove 67, the fourth connecting groove 85 is located above the fifth connecting groove 86, and a second guide hole 87 used for connecting the fourth connecting groove 85 and the fifth connecting groove 86 is formed in the mounting block 53.

Referring to fig. 8 and 14, the first spring 55 is located in the second connecting groove 68, one end of the first spring 55 is connected to the mounting block 53 and located in the first connecting hole 70, the mounting block 53 is threadedly connected to the first blocking bolt 71, the first blocking bolt 71 is threadedly connected to the first connecting hole 70, the cap of the first blocking bolt 71 is located in the third connecting groove 69, the first spring 55 is inserted into the first connecting hole 70 and abuts against the first blocking bolt 71, one end of the first spring 55, which is far away from the first blocking bolt 71, is connected to the locking pin 54 through the first connecting ring 72, one side of the first connecting ring 72 is connected to the first spring 55, the other side is connected to the locking pin 54, the first guide rod 73 penetrates through the first connecting ring 72 and is inserted into the first spring 55, the locking pin 54 is slidably fitted to the mounting block 53, the guide block 74 is connected to the mounting block 53, the guide block 74 is located in the first connecting groove 67, a first guide hole 75 is formed in the guide block 74, a first guide sleeve 76 is connected to the guide block 74, the first guide sleeve 76 is located in the first guide hole 75, the locking pin 54 penetrates through the first guide sleeve 76 and is in sliding fit with the first guide sleeve 76, when the first spring 55 is in a natural state, the locking pin 54 is inserted into the locking groove 64, before the locking pin 54 is inserted into the locking groove 64, the blocking screw 65 in the locking groove 64 corresponding to the locking pin 54 is detached, one end of the locking pin 54, which is used for being inserted into the locking groove 64, is provided with two inclined surfaces 77, and the two inclined surfaces 77 are arranged oppositely, so that the locking pin 54 can be smoothly inserted into the locking groove 64 to position the locking disc 52.

Referring to fig. 8 and 15, a clamping assembly is connected to the mounting block 53, and the clamping assembly includes a truncated cone-shaped slider 78, a sliding rod 79, a second spring 80, a clamping rod 81, a clamping block 82, a pulley 83, and a second guide rod 84.

Referring to fig. 8 and 16, a second guide sleeve 88 is connected to the mounting block 53, the second guide sleeve 88 is located in the second guide hole 87, the second spring 80 is located in the fifth connecting groove 86, one end of the second spring 80 is connected to the mounting block 53, specifically, a plugging post 89 is connected to the mounting block 53, one end of the plugging post 89 is located in the fifth connecting groove 86 and is connected to a second connecting ring 90, one end of the second spring 80 is connected to the second connecting ring 90, the other end of the second spring 80 is connected to the sliding rod 79 through a third connecting ring 91, one side of the third connecting ring 91 is connected to the second spring 80, the other side is connected to the sliding rod 79, the sliding rod 79 is slidably engaged with the mounting block 53, specifically, the sliding rod 79 penetrates through the second guide sleeve 88 and is slidably engaged with the second guide sleeve 88, one end of the sliding rod 79, which is far away from the second spring 80, is connected to the bottom of the circular truncated cone-shaped slider 78, one end of the sliding rod 79, which is connected to the circular cone-shaped slider 78, is located in the fourth connecting groove 85, through holes are formed in the circular truncated cone-shaped sliding block 78, the sliding rod 79 and the blocking column 89, a third limiting block 92 is connected to the second guide rod 84, the second guide rod 84 penetrates through the circular truncated cone-shaped sliding block 78, the sliding rod 79, a third connecting ring 91, the second spring 80, the second connecting ring 90 and the blocking column 89 in sequence, the third limiting block 92 is located above the top of the circular truncated cone-shaped sliding block 78, and the second guide rod 84 and the sliding rod 79 are fastened through pins.

Referring to fig. 14 and 15, two clamping rods 81 are provided, two clamping rods 81 are hinged to the mounting block 53 through a supporting block 93, specifically, the supporting block 93 is connected to the guide block 74, the supporting block 93 and the guide block 74 are integrally formed, two opposite sides of the supporting block 93 are provided with grooves 94, the clamping rods 81 are hinged to the supporting block 93, the hinged portions of the clamping rods 81 and the supporting block 93 are located in the grooves 94, the clamping rods 81 are located at two sides of the locking disc 52 and at two sides of the circular truncated cone-shaped sliding block 78, one end of the clamping rods 81 is hinged to the clamping block 82, a rubber sheet 95 is connected to the clamping block 82, the other end of the clamping rods 81 is rotatably connected to the pulleys 83, when the second spring 80 is in a natural state, the pulleys 83 on the two clamping rods 81 are tightly abutted to the side wall of the circular truncated cone-shaped sliding block 78, the clamping blocks 82 on the two clamping rods 81 are tightly abutted to the locking disc 52 through the rubber sheet 95, the rubber sheet 95 is tightly abutted to the side wall of the locking disc 52, to locate the locking disk 52.

Referring to fig. 16, a synchronizing adjustment assembly is also coupled to the mounting block 53, and includes a synchronizing adjustment lever 96, a first synchronizing wheel 97, and a second synchronizing wheel 98.

Referring to fig. 8 and 13, the synchronous adjusting rod 96 penetrates through the fourth connecting groove 85, the first connecting groove 67 and the second connecting groove 68, one end of the synchronous adjusting rod 96 is hinged to the mounting block 53 through the first hinged rod, the first hinged rod is located at the third connecting groove 69, referring to fig. 8 and 16, the synchronous adjusting rod 96 is provided with a waist-shaped groove 99, the first synchronizing wheel 97 is rotatably connected to the synchronous adjusting rod 96 and located in the waist-shaped groove 99, the first synchronizing wheel 97 is located above the circular truncated cone-shaped sliding block 78 and the third limiting block 92, and part of the first synchronizing wheel 97 protrudes from the waist-shaped groove 99 and abuts against the third limiting block 92.

Referring to fig. 14 and 16, the locking pin 54 is provided with two moving planes, the two moving planes are arranged oppositely, a part of the locking pin 54 provided with the moving plane penetrates through the waist-shaped groove 99, so that the synchronization adjustment rod 96 can rotate smoothly, the second synchronization wheel 98 is rotatably connected to the part of the locking pin 54 provided with the moving plane, the synchronization adjustment rod 96 is positioned above the second synchronization wheel 98 and abuts against the second synchronization wheel 98 through a third cushion plate 100, referring to fig. 16 and 17, the third cushion plate 100 is arranged on the synchronization adjustment rod 96 and abuts against the second synchronization wheel 98, and the third cushion plate 100 is provided with a notch for the locking pin 54 to pass smoothly.

Referring to fig. 8 and 9, a stabilizing adjustment assembly is connected to the mounting block 53, the stabilizing adjustment assembly includes a stabilizing block 101, a stabilizing rod 102, a stabilizing plate 103 and a protection plate 104, the stabilizing block 101 is hinged to the synchronous adjustment rod 96 through a second hinge rod, a center line of the first hinge rod is perpendicular to a center line of the second hinge rod, the second hinge rod is sleeved with a first torsion spring 105, the stabilizing block 101 is provided with a butt rod 106, one end of the first torsion spring 105 is fixedly connected to the synchronous adjustment rod 96, the other end of the first torsion spring is abutted to the butt rod 106, the stabilizing rod 102 is connected to the stabilizing block 101, the stabilizing plate 103 is connected to the mounting block 53 through the protection plate 104, the protection plate 104 is connected to the mounting block 53 and shields the second connection groove 68, so as to protect the first spring 55, the stabilizing plate 103 is connected to the protection plate 104, the stabilizing plate 103 is provided with a stabilizing groove, the stabilizing groove includes an unlocking groove 108, a locking groove 109 and a communication groove 110, one end of the communicating groove 110 is communicated with the locking groove 109, the other end is communicated with the unlocking groove 108, the length of the unlocking groove 108 is larger than that of the locking groove 109, the stabilizing rod 102 penetrates through the stabilizing groove, and when the first torsion spring 105 is in a natural state, the stabilizing rod 102 is located in the locking groove 109.

When the locking disc 52 needs to be unlocked, the stabilizing rod 102 is lifted upwards, and then the stabilizing rod 102 is rotated, the first torsion spring 105 is deformed under stress, the stabilizing rod 102 is rotated into the unlocking groove 108 from the locking groove 109, downward force is applied to the stabilizing rod 102, the stabilizing rod 102 is pressed downwards, the stabilizing rod 102 drives the synchronous adjusting rod 96 to rotate downwards, in the rotating process of the synchronous adjusting rod 96, the first synchronous wheel 97 moves downwards to press the third limiting block 92 and the circular truncated cone-shaped sliding block 78, the circular truncated cone-shaped sliding block 78 and the second guide rod 84 move downwards, the second spring 80 is compressed, the pulley 83 does not abut against the circular truncated cone-shaped sliding block 78 any more, the clamping block 82 is loosened and does not clamp the locking disc 52 any more, the second synchronous wheel 98 is pressed downwards by the synchronous adjusting rod 96, the second synchronous wheel 98 drives the locking pin 54 to move, the first spring 55 is compressed, the locking pin 54 is moved out of the locking groove 64, and therefore the locking disc 52 is quickly positioned.

When the locking disc 52 needs to be positioned, the force applied to the stabilizing rod 102 is released, the first spring 55 and the second spring 80 return to the natural state, the stabilizing rod 102 is lifted upwards, when the stabilizing rod 102 moves to the joint of the communicating groove 110 and the unlocking groove 108, the force applied to the stabilizing rod 102 is released, the first torsion spring 105 returns to the natural state, the stabilizing rod 102 automatically moves into the locking groove 109, because the locking groove 109 is short in length, the stabilizing rod 102 cannot move downwards in the locking groove 109 in a large range, when a worker mistakenly touches the stabilizing rod 102, the positioning of the locking plate 36 cannot be released, and the safety performance in the use process is improved.

Referring to fig. 18, the counterweight 111 can be detachably connected to the counterweight wheel 56, the counterweight 111 can be set to be a plurality of, the staff can install or dismantle the counterweight 111 according to the quantity of demand, the counterweight 111 is set to be arc-shaped, in this embodiment, the number of the counterweight 111 is set to be three, and the size of the three counterweight 111 is different, each counterweight 111 includes a first arc-shaped block 112 and a second arc-shaped block 113, the first arc-shaped block 112 is located on one side of the counterweight wheel 56, the second arc-shaped block 113 is located on the other side of the counterweight wheel 56, the first arc-shaped block 112 and the second arc-shaped block 113 are detachably connected to the counterweight wheel 56 through screws, and the screws pass through the first arc-shaped block 112 and the counterweight wheel 56 and are in threaded connection to the second arc-shaped block 113.

The implementation principle of this application embodiment a positioner can overturn does: when assembling the workpiece, the workpiece is assembled, the anti-slip threaded rod 26 is rotated, the plug 27 is moved out of the insertion hole 28, the locking handle 12 is rotated to move the first positioning pin 14 away from the second positioning component, the handle 44 is pulled to release the positioning of the sliding block 30, the sliding block 30 is slid, the sliding block 30 drives the second positioning pin 35 to move through the second positioning seat, the second positioning pin 35 moves away from the first positioning component, the workpiece is placed between the first unit component and the second positioning component, the locking handle 12 is rotated to move the first positioning pin 14 toward the workpiece and is inserted into the workpiece, the anti-slip threaded rod 26 is rotated to insert the plug 27 into the insertion hole 28 to position the first positioning pin 14, the sliding block 30 is moved to insert the second positioning pin 35 into the workpiece, the application of force to the handle 44 is released, and the locking plate 36 rotates under the elasticity of the second torsion spring 45, the first rack 37 rotates along with the locking plate 36, so that the teeth on the first rack 37 are clamped between two adjacent teeth on the second rack 38, the second positioning pin 35 is positioned, and the workpiece is mounted at this time.

After a workpiece is installed, the counterweight wheel 56 is rotated, the counterweight wheel 56 drives the locking disc 52 and the workpiece to rotate, one surface of the workpiece is rotated to a position suitable for assembly, the locking disc 52 is locked, the plugging screw 65 in the locking groove 64 corresponding to the locking pin 54 is detached, the first spring 55 and the second spring 80 are in a natural state, the locking pin 54 is inserted into the locking groove 64, and the clamping block 82 clamps the locking disc 52 tightly, so that the locking disc 52 is positioned, the workpiece is positioned, and the workpiece is prevented from rotating during assembly.

Because the workpiece is often irregular in shape, after the locking disc 52 is positioned, the counterweight blocks 111 with corresponding quantity and size are installed on the counterweight wheel 56 according to requirements, so that the weight of the workpiece is balanced, the workpiece is kept balanced, and one surface of the workpiece is assembled conveniently.

When one surface of the workpiece is assembled and the other surface of the workpiece needs to be assembled, the locking disc 52 is unlocked, the stabilizing rod 102 rotates into the unlocking groove 108 from the locking groove 109, the stabilizing rod 102 is pressed downwards, the synchronizing adjusting rod 96 is driven by the stabilizing rod 102 to rotate downwards, the first spring 55 and the second spring 80 are compressed, the clamping block 82 does not clamp the locking disc 52 any more, the locking pin 54 moves out of the locking groove 64, so that the locking disc 52 is unlocked, the counterweight wheel 56 is rotated, the locking disc 52 and the workpiece are rotated, the other surface of the workpiece is rotated to a position suitable for assembly, the blocking screw 65 in the locking groove 64 corresponding to the locking pin 54 is detached, the force applied to the stabilizing rod 102 is released, the first torsion spring 105 returns to a natural state, the stabilizing rod 102 moves into the locking groove 109, the first spring 55 and the second spring 80 return to the natural state, the clamping block 82 clamps the locking disc 52, the locking pin 54 is inserted into the locking groove 64, the locking disc 52 is positioned, the workpiece is positioned, so that the other surface of the workpiece can be assembled, the purpose of assembling the other surface after one surface of the workpiece is assembled is achieved, and the assembling efficiency is high.

Claims

1. The utility model provides a machine of shifting can overturn which characterized in that: the device comprises a bracket (2), a first positioning component for positioning the workpiece and a second positioning component for positioning the workpiece;

the number of the brackets (2) is two, the first positioning assembly is rotatably connected to one bracket (2) through a rotating shaft (4), and the second positioning assembly is rotatably connected to the other bracket (2) through the rotating shaft (4);

be equipped with on support (2) and be used for carrying out the locking Assembly who locks to pivot (4), locking Assembly includes locking dish (52), installation piece (53), fitting pin (54) and first spring (55), locking dish (52) set up on pivot (4), be equipped with a plurality of locking groove (64) on locking dish (52) edge, installation piece (53) set up on support (2), installation piece (53) are connected to the one end of first spring (55), fitting pin (54) is connected to the other end, fitting pin (54) and installation piece (53) sliding fit, when first spring (55) are in natural state, fitting pin (54) are inserted and are established in locking groove (64).

2. The invertible positioner of claim 1, wherein: the clamping assembly is arranged on the mounting block (53), the clamping assembly comprises a truncated cone-shaped sliding block (78), a sliding rod (79), a second spring (80), clamping rods (81), clamping blocks (82) and pulleys (83), the second spring (80) is connected to the mounting block (53), one end of the sliding rod (79) is connected to the bottom of the truncated cone-shaped sliding block (78), the other end of the sliding rod (79) is connected with the second spring (80), the sliding rod (79) is in sliding fit with the mounting block (53), the two clamping rods (81) are hinged to the mounting block (53), the clamping rods (81) are located on two sides of the locking disc (52) and located on two sides of the truncated cone-shaped sliding block (78), one end of each clamping rod (81) is hinged to each clamping block (82), the other end of each clamping rod is rotatably connected with each pulley (83), when the second spring (80) is in a natural state, the pulleys (83) on the two clamping rods (81) are tightly abutted to the side walls of the truncated cone-shaped sliding block (78), clamping blocks (82) on the two clamping rods (81) clamp the locking disc (52).

3. The invertible positioner of claim 2, wherein: still be equipped with the synchronization regulation subassembly on installation piece (53), the synchronization regulation subassembly includes synchronization regulation pole (96), first synchronizing wheel (97) and second synchronizing wheel (98), the one end of synchronization regulation pole (96) is articulated through first articulated rod and installation piece (53), first synchronizing wheel (97) rotate to be connected on synchronization regulation pole (96) and be in round platform shape slider (78) top, be equipped with waist type groove (99) on synchronization regulation pole (96), waist type groove (99) are run through in fitting pin (54), second synchronizing wheel (98) rotate to be connected on fitting pin (54), synchronization regulation pole (96) are located second synchronizing wheel (98) top.

4. The invertible positioner of claim 3, wherein: be connected with firm adjusting part on installation piece (53), firm adjusting part includes firm piece (101), firm pole (102) and firm board (103), firm piece (101) are articulated through second hinge rod and synchronous regulation pole (96), the central line of first hinge rod and the central line mutually perpendicular of second hinge rod, firm pole (102) link to each other with firm piece (101), firm board (103) are connected on installation piece (53), be equipped with firm groove on firm board (103), firm groove is including unlocking groove (108), locking groove (109) and intercommunication groove (110), the one end and the locking groove (109) intercommunication of intercommunication groove (110), the other end and unlocking groove (108) intercommunication, the length of unlocking groove (108) is greater than the length of locking groove (109), firm pole (102) run through firm groove.

5. The invertible positioner of claim 4, wherein: the second hinged rod is sleeved with a first torsion spring (105), a butt-joint rod (106) is arranged on the stabilizing block (101), one end of the first torsion spring (105) is fixedly connected with the synchronous adjusting rod (96), the other end of the first torsion spring is tightly abutted to the butt-joint rod (106), and when the first torsion spring (105) is in a natural state, the stabilizing rod (102) is located in the locking groove (109).

6. The invertible positioner of claim 1, wherein: the rotating shaft (4) is connected with a counterweight wheel (56), and the counterweight wheel (56) is detachably connected with a counterweight block (111).

7. The invertible positioner of claim 6, wherein: the counterweight wheel (56) is detachably connected with the rotating shaft (4).

8. The invertible positioner of claim 1, wherein: first locating component includes first locating seat and first locating component, first locating seat sets up on pivot (4), first locating component includes first locking piece (11), locking handle (12), gangbar (13), first locating pin (14) and first locating strip (15), first locking piece (11) are connected on first locating seat, locking handle (12) articulate on first locking piece (11), the one end and the locking handle (12) of gangbar (13) are articulated, the other end is articulated with first locating strip (15), first locating pin (14) are connected on first locating strip (15), first locating pin (14) run through first locating seat and with first locating seat sliding fit.

9. The invertible positioner of claim 1, wherein: the second positioning assembly comprises a second mounting plate (29), a sliding block (30), a second positioning seat and a second positioning part, the second mounting plate (29) is arranged on the rotating shaft (4), the sliding block (30) is connected to the second mounting plate (29) in a sliding mode, the second positioning seat is arranged on the sliding block (30), the second positioning part comprises a second positioning pin (35), a locking plate (36), a first rack (37) and a second rack (38), the second positioning pin (35) is arranged on the second positioning seat, one end of the locking plate (36) is hinged to the second positioning seat through a third hinged rod (42), the other end of the locking plate is connected with the first rack (37), the second rack (38) is arranged on the second mounting plate (29), the position of the third hinged rod (42) in the vertical direction is located above the second rack (38), when teeth on the first rack (37) are clamped between two adjacent teeth on the second rack (38), the second rack (38) is located between the first rack (37) and the third hinge rod (42).

10. The invertible positioner of claim 1, wherein: and the rotating shafts (4) on the two brackets (2) are connected through a synchronizing rod (5).