Flip-type positioner

Abstract

The present application relates to a flip positioner, comprising a bracket, a first positioning assembly for positioning a workpiece, and a second positioning assembly for positioning the workpiece; the bracket is provided with two, the first positioning assembly is rotatably connected to one bracket via a rotating shaft, and the second positioning assembly is rotatably connected to the other bracket via a rotating shaft; the bracket is provided with a locking assembly for locking the rotating shaft, the locking assembly comprises a locking disk, a mounting block, a locking pin, and a first spring, the locking disk is provided on the rotating shaft, a plurality of locking grooves are provided on the edge of the locking disk, the mounting block is provided on the bracket, one end of the first spring is connected to the mounting block, and the other end is connected to the locking pin, the locking pin is slidably matched with the mounting block, and when the first spring is in a natural state, the locking pin is inserted in the locking groove. The present application improves the problem of low workpiece assembly efficiency.

Description

Technical Field

[0001] The present application relates to the field of automobile assembly, and in particular to a flip positioner. Background Art

[0002] In automobile assembly, since the shapes of workpieces on the automobile production line are different, in order to improve the assembly accuracy, the workpieces need to be positioned before assembly.

[0003] However, when assembling a workpiece, both the front and back sides of the workpiece may be assembled. For some workpieces that need to be assembled on both sides, it is not convenient to flip the workpiece after positioning it using a commonly used positioning device. It is impossible to flip and assemble the other side after assembling one side, and the workpiece assembly efficiency is low. Summary of the invention

[0004] In order to improve the problem of low workpiece assembly efficiency, the present application provides a flip positioner.

[0005] The present application provides a reversible positioner adopting the following technical solution:

[0006] A flip positioner includes a bracket, a first positioning assembly for positioning a workpiece, and a second positioning assembly for positioning the workpiece;

[0007] Two brackets are provided, the first positioning assembly is rotatably connected to one bracket via a rotating shaft, and the second positioning assembly is rotatably connected to the other bracket via a rotating shaft;

[0008] The bracket is provided with a locking assembly for locking the rotating shaft, the locking assembly includes a locking disk, a mounting block, a locking pin and a first spring, the locking disk is arranged on the rotating shaft, a plurality of locking grooves are arranged on the edge of the locking disk, the mounting block is arranged on the bracket, one end of the first spring is connected to the mounting block, and the other end is connected to the locking pin, the locking pin and the mounting block are slidably matched, and when the first spring is in a natural state, the locking pin is inserted in the locking groove.

[0009] By adopting the above technical scheme, the workpiece is installed through the first positioning component and the second positioning component, force is applied to the locking pin, the first spring is compressed, the locking pin is disengaged from the locking groove, the locking disk is rotated to rotate the workpiece, and after one side of the workpiece is rotated to a position suitable for assembly, the force applied to the locking pin is released, and the locking pin is inserted into the corresponding locking groove under the elastic force of the first spring to position the workpiece so that one side of the workpiece can be assembled. When it is necessary to assemble the other side of the workpiece, the locking pin is removed from the locking groove, the locking disk is rotated to rotate the workpiece, and the other side of the workpiece is rotated to a position suitable for assembly, and the locking pin is inserted into the locking groove to position the workpiece so that the other side of the workpiece can be assembled, thereby achieving the purpose of assembling one side of the workpiece and then flipping it over and assembling the other side, and the assembly efficiency is high.

[0010] Optionally, a clamping assembly is provided on the mounting block, the clamping assembly includes a truncated cone shaped slider, a sliding rod, a second spring, a clamping rod, a clamping block and a pulley, the second spring is connected to the mounting block, one end of the sliding rod is connected to the bottom of the truncated cone shaped slider, and the other end is connected to the second spring, the sliding rod and the mounting block are slidably matched, and two clamping rods are provided, the two clamping rods are hinged to the mounting block, the clamping rods are located on both sides of the locking disk and on both sides of the truncated cone shaped slider, one end of the clamping rod is hinged to the clamping block, and the other end is rotatably connected to the pulley, when the second spring is in a natural state, the pulleys on the two clamping rods are both pressed against the side wall of the truncated cone shaped slider, and the clamping blocks on the two clamping rods clamp the locking disk.

[0011] By adopting the above technical solution, when the position of the workpiece needs to be adjusted, force is applied to the sliding rod and the conical slider, the second spring is compressed, the conical slider moves downward, the clamping rod can be rotated, and the clamping block no longer clamps the locking disk, thereby facilitating the rotation of the locking disk to adjust the position of the workpiece. After the position of the workpiece is adjusted, the force applied to the sliding rod and the conical slider is released, and the conical slider moves upward under the elastic force of the second spring, the pulley is pressed against the side wall of the conical slider, and the clamping block clamps the locking disk, thereby improving the stability of the locking disk, avoiding rotation of the workpiece during assembly, and helping to improve assembly efficiency.

[0012] Optionally, the mounting block is also provided with a synchronous adjustment component, which includes a synchronous adjustment rod, a first synchronous wheel and a second synchronous wheel. One end of the synchronous adjustment rod is hinged to the mounting block through a first hinge rod, the first synchronous wheel is rotatably connected to the synchronous adjustment rod and is located above the truncated cone-shaped slider, the synchronous adjustment rod is provided with a waist-shaped groove, the locking pin passes through the waist-shaped groove, the second synchronous wheel is rotatably connected to the locking pin, and the synchronous adjustment rod is located above the second synchronous wheel.

[0013] By adopting the above technical scheme, when the position of the workpiece needs to be adjusted, force is applied to the synchronous adjusting rod to make the synchronous adjusting rod rotate downward. During the rotation of the synchronous adjusting rod, the first synchronous wheel moves downward to apply pressure on the conical slider. The conical slider moves downward, the clamping block loosens and no longer clamps the locking disk, and the synchronous adjusting rod presses the second synchronous wheel downward, and the second synchronous wheel drives the locking pin to move, and moves the locking pin out of the locking groove, thereby quickly releasing the positioning of the locking disk to adjust the position of the workpiece. After the position of the workpiece is adjusted to the appropriate position, the force applied to the synchronous adjusting rod is released, and the locking pin is inserted into the corresponding locking groove under the elastic force of the first spring, the conical slider moves upward, and the clamping block re-clamps the locking disk, thereby achieving the purpose of quickly positioning the locking disk and the purpose of simultaneously controlling the clamping assembly and the locking pin, accelerating the adjustment speed, and helping to improve assembly efficiency.

[0014] Optionally, the mounting block is connected to a stabilizing adjustment component, which includes a stabilizing block, a stabilizing rod and a stabilizing plate. The stabilizing block is hinged to the synchronous adjusting rod through a second hinge rod, the center line of the first hinge rod and the center line of the second hinge rod are perpendicular to each other, the stabilizing rod is connected to the stabilizing block, and the stabilizing plate is connected to the mounting block. A stabilizing groove is provided on the stabilizing plate, and the stabilizing groove includes an unlocking groove, a locking groove and a connecting groove. One end of the connecting groove is connected to the locking groove, and the other end is connected to the unlocking groove. The length of the unlocking groove is greater than the length of the locking groove, and the stabilizing rod runs through the stabilizing groove.

[0015] By adopting the above technical solution, when it is necessary to release the positioning of the locking disk, the stabilizing rod is moved into the unlocking groove, and force is applied downward to the stabilizing rod, which drives the synchronous adjusting rod to rotate downward, thereby realizing the release of the positioning of the locking disk. When the locking disk needs to be positioned, the force applied to the stabilizing rod is released, the first spring and the second spring return to their natural state, the stabilizing rod is lifted upward, and then the stabilizing rod is rotated to move the stabilizing rod from the unlocking groove to the locking groove. Since the length of the unlocking groove is greater than that of the locking groove and the length of the locking groove is shorter, the stabilizing rod cannot move downward in a large range in the locking groove. When the staff accidentally touches the stabilizing rod, the clamping block cannot release the clamping of the locking plate and the locking pin cannot be disengaged from the locking groove, which further improves the stability of the locking disk and prevents the workpiece from rotating during assembly.

[0016] Optionally, a first torsion spring is sleeved on the second hinged rod, and an abutment rod is provided on the stabilizing block. One end of the first torsion spring is fixedly connected to the synchronous adjustment rod, and the other end is tightly abutted against the abutment rod. When the first torsion spring is in a natural state, the stabilizing rod is in the locking groove.

[0017] By adopting the above technical solution, when it is necessary to release the positioning of the locking disk, the stabilizing rod is lifted upward and then rotated to move the stabilizing rod into the unlocking groove. During this process, the first torsion spring is deformed under force, and then the stabilizing rod is pressed downward to release the positioning of the locking disk. When it is necessary to position the locking disk, when the stabilizing rod moves to the connection between the connecting groove and the unlocking groove, the force on the stabilizing rod is released, the first torsion spring returns to its natural state, and the stabilizing rod automatically moves into the locking groove, so that the stabilizing rod quickly enters the locking groove.

[0018] Optionally, a counterweight wheel is connected to the rotating shaft, and a counterweight block is detachably connected to the counterweight wheel.

[0019] By adopting the above technical solution, the setting of the counterweight block can help the workpiece maintain balance, facilitate the adjustment of the workpiece position, and help improve assembly efficiency.

[0020] Optionally, the counterweight wheel is detachably connected to the rotating shaft.

[0021] By adopting the above technical solution, if the counterweight wheel is damaged, the damaged counterweight wheel can be replaced at any time, which brings convenience to the user.

[0022] Optionally, the first positioning assembly includes a first positioning seat and a first positioning member, the first positioning seat is arranged on the rotating shaft, the first positioning member includes 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, and the other end is hinged to the first positioning strip, the first positioning pin is connected to the first positioning strip, and the first positioning pin passes through the first positioning seat and slides with the first positioning seat.

[0023] By adopting the above technical solution, when installing the workpiece, first rotate the locking handle, the locking handle drives the linkage rod to move, the linkage rod drives the first positioning bar to move, the first positioning bar drives the first positioning pin to move in the direction away from the second positioning component to avoid space for placing the workpiece; when the workpiece is placed between the first positioning component and the second positioning component, rotate the locking handle again, the locking handle drives the linkage rod and the first positioning bar to move, the first positioning pin moves in the direction close to the workpiece and is inserted into the workpiece, completing the positioning of the workpiece by the first positioning component.

[0024] Optionally, the second positioning assembly includes a second mounting plate, a sliding block, a second positioning seat and a second positioning member, the second mounting plate is arranged on the rotating shaft, the sliding block is slidably connected to the second mounting plate, the second positioning seat is arranged on the sliding block, the second positioning member includes 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, and the other end is connected to the first rack, the second rack is arranged on the second mounting plate, the third hinge rod is positioned above the second rack in the vertical direction, and when the tooth on the first rack is clamped between two adjacent teeth on the second rack, the second rack is located between the first rack and the third hinge rod.

[0025] By adopting the above technical solution, when installing the workpiece, the sliding block is slid to move the sliding block in the direction away from the first positioning assembly to avoid the position for placing the workpiece. When the workpiece is placed between the first positioning assembly and the second positioning assembly, the sliding block is slid to insert the second positioning pin into the workpiece to position the workpiece, and then the locking plate is rotated. The locking plate drives the first rack to move so that the teeth on the first rack are engaged between two adjacent teeth on the second rack, thereby positioning the sliding block to prevent the sliding block from moving and affecting the positioning of the workpiece by the second positioning assembly.

[0026] Optionally, the rotating shafts on the two brackets are connected via a synchronization rod.

[0027] By adopting the above technical solution, the setting of the synchronization rod improves the synchronization of the rotation of the shafts on the two brackets, making the process of flipping the workpiece smoother.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. Install the workpiece through the first positioning assembly and the second positioning assembly, apply force to the locking pin, the first spring is compressed, the locking pin is disengaged from the locking groove, the locking plate is rotated to rotate the workpiece, and after one side of the workpiece is rotated to a position suitable for assembly, the force applied to the locking pin is released, and the locking pin is inserted into the corresponding locking groove under the elastic force of the first spring to position the workpiece so that one side of the workpiece can be assembled. When it is necessary to assemble the other side of the workpiece, the locking pin is removed from the locking groove, the locking plate is rotated to rotate the workpiece, and the other side of the workpiece is rotated to a position suitable for assembly. The locking pin is then inserted into the locking groove to position the workpiece so that the other side of the workpiece can be assembled, thereby achieving the purpose of assembling one side of the workpiece and then turning it over and assembling the other side, and the assembly efficiency is high.

[0030] 2. When the position of the workpiece needs to be adjusted, force is applied to the synchronous adjustment rod to make it rotate downward. During the rotation of the synchronous adjustment rod, the first synchronous wheel moves downward to apply pressure to the truncated cone-shaped slider. The truncated cone-shaped slider moves downward, the clamping block loosens and no longer clamps the locking disk. The synchronous adjustment rod presses the second synchronous wheel downward, and the second synchronous wheel drives the locking pin to move, and moves the locking pin out of the locking groove, thereby quickly releasing the positioning of the locking disk to adjust the position of the workpiece. After the position of the workpiece is adjusted to an appropriate position, the force applied to the synchronous adjustment rod is released, and the locking pin is inserted into the corresponding locking groove under the elastic force of the first spring. The truncated cone-shaped slider moves upward, and the clamping block re-clamps the locking disk, thereby achieving the purpose of quickly positioning the locking disk, and achieving the purpose of simultaneously controlling the clamping assembly and the locking pin, accelerating the adjustment speed, and helping to improve assembly efficiency.

[0031] 3. The setting of the counterweight block can help the workpiece maintain balance, facilitate the adjustment of the workpiece position, and help improve assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the flip positioner used to embody the embodiment of the present application.

[0033] Figure 2 yes Figure 1 The enlarged view of part A of the first positioning component is shown in FIG.

[0034] Figure 3 It is a structural schematic diagram used to reflect the positional relationship between the first limiting piece and the first locking block in the embodiment of the present application.

[0035] Figure 4 It is a structural schematic diagram used to reflect the positional relationship between the anti-sliding block and the first positioning strip in the embodiment of the present application.

[0036] Figure 5 It is a structural schematic diagram used to reflect the positional relationship between the second limiting piece and the second mounting plate in the embodiment of the present application.

[0037] Figure 6 It is a structural schematic diagram used to reflect the positional relationship between the limit strip and the hinge seat in the embodiment of the present application.

[0038] Figure 7 It is a structural schematic diagram used to reflect the positional relationship between the second torsion spring and the hinge seat in the embodiment of the present application.

[0039] Figure 8 It is a structural schematic diagram used to reflect the positional relationship between the first spring and the mounting block in the embodiment of the present application.

[0040] Fig. 9 It is a structural schematic diagram used to reflect the positional relationship between the unlocking groove and the locking groove in the embodiment of the present application.

[0041] Fig.10 It is a structural schematic diagram used to reflect the positional relationship between the locking sleeve and the stepped shaft in the embodiment of the present application.

[0042] Fig.11 It is a structural schematic diagram used to reflect the positional relationship between the counterweight wheel and the locking plate in the embodiment of the present application.

[0043] Fig.12 yes Fig.11 The enlarged view of the B structure is used to reflect the positional relationship between the linkage bar and the stepped shaft.

[0044] Fig.13 It is a structural schematic diagram used to reflect the installation block in the embodiment of the present application.

[0045] Fig.14 It is a structural schematic diagram used to reflect the positional relationship between the locking pin and the synchronization adjustment rod in the embodiment of the present application.

[0046] Fig.15 It is a structural schematic diagram used to reflect the positional relationship between the clamping block and the locking disk in the embodiment of the present application.

[0047] Fig.16 It is a structural schematic diagram used to reflect the positional relationship between the second guide rod and the truncated cone-shaped sliding block in the embodiment of the present application.

[0048] Fig.17 It is a structural schematic diagram used to reflect the positional relationship between the second synchronous wheel and the third pad in the embodiment of the present application.

[0049] Fig.18 It is a structural schematic diagram used to reflect the positional relationship between the counterweight block and the counterweight wheel in the embodiment of the present application.

[0050] Description of reference numerals:

[0051] 1. Base; 2. Bracket; 3. Receiving box; 4. Rotating shaft; 5. Synchronous rod; 6. Straight rod; 7. Bending rod; 8. First positioning plate; 9. Second positioning plate; 10. First mounting seat; 11. First locking block; 12. Locking handle; 13. Linkage rod; 14. First positioning pin; 15. First positioning strip; 16. First limiting rod; 17. First limiting block; 18. First locking rod; 19. Articulated sleeve; 20. First limiting piece; 21. Limiting groove; 22. Card interface; 23. Gasket; 24. Arc groove; 25. Anti-slip block; 26. Anti-slip threaded rod; 27. Plug; 28. Jack; 29. ​​Second mounting plate; 30. Sliding block; 31. Slide rail; 32. The second limiting plate; 33, the third positioning plate; 34, the fourth positioning plate; 35, the second positioning pin; 36, the locking plate; 37, the first rack; 38, the second rack; 39, the connecting plate; 40, the first pad; 41, the hinge seat; 42, the third hinge rod; 43, the pull block; 44, the handle; 45, the second torsion spring; 46, the second limiting block; 47, the limiting strip; 48, the first bolt; 49, the second bolt; 50, the notch; 51, the pad; 52, the locking plate; 53, the mounting block; 54, the locking pin; 55, the first spring; 56, the counterweight wheel; 57, the stepped shaft; 58, the first linkage groove; 59, the locking sleeve; 60, the second clamping hole; 61, the second linkage groove ; 62, linkage bar; 63, mounting plate; 64, locking groove; 65, plugging screw; 66, second pad; 67, first connecting groove; 68, second connecting groove; 69, third connecting groove; 70, first connecting hole; 71, first plugging bolt; 72, first connecting ring; 73, first guide rod; 74, guide block; 75, first guide hole; 76, first guide sleeve; 77, inclined surface; 78, truncated cone slider; 79, sliding rod; 80, second spring; 81, clamping rod; 82, clamping block; 83, pulley; 84, second guide rod; 85, fourth connecting groove; 86, fifth connecting groove; 87, second guide hole; 88, second guide sleeve; 89, sealing Blocking column; 90, second connecting ring; 91, third connecting ring; 92, third limiting block; 93, supporting block; 94, groove; 95, rubber sheet; 96, synchronous adjustment rod; 97, first synchronous wheel; 98, second synchronous wheel; 99, waist-shaped groove; 100, third pad; 101, stabilizing block; 102, stabilizing rod; 103, stabilizing plate; 104, protective plate; 105, first torsion spring; 106, abutting rod; 108, unlocking groove; 109, locking groove; 110, connecting groove; 111, counterweight block; 112, first arc block; 113, second arc block; 114, synchronous plate; 115, limiting plane; 116, clamping plane; 117, connecting block. DETAILED DESCRIPTION

[0052] The present application embodiment discloses a flip-over positioner. Figure 1The flip positioner includes a base 1, a bracket 2, a first positioning component for positioning a workpiece, and a second positioning component for positioning the workpiece.

[0053] Reference Figure 1 , two brackets 2 are provided, and the brackets 2 are provided at both ends of the base 1. Both ends of the base 1 are also connected with receiving boxes 3 to hold parts, and the receiving boxes 3 at both ends of the base 1 are located between the two brackets 2. 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 a rotating shaft 4. The first positioning assembly and the second positioning assembly are used together to position the workpiece. The rotating shafts 4 on the two brackets 2 are connected through a synchronization rod 5, and a synchronization plate 114 is connected to the rotating shaft 4. The synchronization rod 5 includes a straight rod 6 and a bent rod 7. One end of the bent rod 7 is connected to the synchronization plate 114, and the other end is connected to the straight rod 6, so that the straight rod 6 is away from the center line of the rotating shaft 4, which is convenient for positioning the workpiece.

[0054] Reference Figure 2 and Figure 3 The first positioning assembly includes a first positioning seat and a first positioning member. The first positioning seat includes a first positioning plate 8 and a second positioning plate 9, the first positioning plate 8 and the second positioning plate 9 are integrally formed, the first positioning plate 8 and the second positioning plate 9 are perpendicular to each other, the first positioning plate 8 is arranged on the rotating shaft 4 through the first mounting seat 10, the first mounting seat 10 is arranged on the rotating shaft 4, and the first positioning plate 8 is arranged on the first mounting seat 10.

[0055] Reference Figure 2 and Figure 3 The first positioning member 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 .

[0056] Reference Figure 3 and Figure 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 the first locking rod 18, a hinge hole is provided on the locking handle 12, 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 passes through the first locking block 11, the hinge sleeve 19 and the first limiting block 17, one side of the first limiting piece 20 provided with a limiting plane 115 is located in the limiting groove 21, and the limiting plane 115 contacts the side wall of the limiting groove 21 to prevent the first locking rod 18 from rotating, refer to Figure 2 and Figure 4The first limit block 17 is provided with a card interface 22, and the first locking rod 18 is provided with a card interface 22 adapted to the card interface 22. The card interface 22 is clamped on the first locking rod 18 through the card interface 116. The end of the first locking rod 18 away from the first limit piece 20 is threadedly connected with a bolt, and a gasket 23 is sleeved on the bolt. The gasket 23 is pressed against the first limit block 17. Figure 3 and Figure 4 An arc groove 24 is provided on the locking handle 12, and the center of the circle where the arc groove 24 is located coincides with the center 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 groove 24 so as to limit the rotation range of the locking handle 12. One end of the linkage rod 13 is hinged to the locking handle 12, and the other end is hinged to the first positioning bar 15. The first positioning pin 14 is connected to the first positioning bar 15. The first positioning pin 14 passes through the second positioning plate 9 and slides with the second positioning plate 9.

[0057] Reference Figure 4 The first positioning bar 15 is connected with an anti-slip part, which includes an anti-slip block 25, an anti-slip threaded rod 26, a plug 27 and a socket 28. The anti-slip block 25 is connected to the first positioning bar 15, and a threaded hole is provided on the anti-slip block 25. The anti-slip threaded rod 26 is threadedly connected to the anti-slip block 25 through the threaded hole and passes through the anti-slip block 25. The plug 27 is arranged on the anti-slip threaded rod 26, and the plug 27 is inserted into the socket 28 so as to position the first positioning bar 15.

[0058] When adjusting the position of the first positioning pin 14, rotate the anti-slip threaded rod 26 to move the plug 27 out of the socket 28, release the positioning of the first positioning strip 15, rotate the locking handle 12, 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 in the direction away from the second positioning assembly; when the end of the arc groove 24 hits the first limit rod 16, the locking handle 12 cannot continue to rotate, so as to limit the rotation range of the locking handle 12, to avoid a large rotation range of the locking handle 12, which causes the first positioning pin 14 to separate from the second positioning plate 9.

[0059] When the first positioning pin 14 needs to be moved to its original position, the locking handle 12 is rotated again, and the locking handle 12 drives the linkage rod 13 and the first positioning strip 15 to move, and the first positioning pin 14 moves toward the direction close to the second positioning assembly, and the first positioning strip 15 contacts the second positioning plate 9, and the first positioning pin 14 moves back to its original position, and then the anti-slip threaded rod 26 is rotated, and the plug 27 is inserted into the socket 28 to position the first positioning strip 15 to prevent someone from accidentally touching the locking handle 12 and causing the first positioning pin 14 to move.

[0060] Reference Figure 5 The second positioning assembly includes a second mounting plate 29, a sliding block 30, a second positioning seat and a second positioning member.

[0061] Reference Figure 5 and Figure 6 The second mounting plate 29 is arranged 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 with a sliding rail 31, the sliding block 30 and the sliding rail 31 are slidably matched, the second mounting plate 29 is connected with a second limiting piece 32 for limiting the sliding block 30, the second positioning seat is arranged on the sliding block 30, the second positioning seat includes 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 and the fourth positioning plate 34 are perpendicular to each other.

[0062] Reference Figure 5 and Figure 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 arranged 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 pad 40. The first pad 40 is connected to a hinge seat 41. The cross section of the hinge seat 41 is set to be U-shaped. Figure 6 and Figure 7One end of the locking plate 36 is hinged to the hinge seat 41 through a third hinge rod 42, and one end of the locking plate 36 hinged to the hinge seat 41 is also connected to a pull block 43, the pull block 43 and the locking plate 36 are integrally formed, and a handle 44 is connected to the pull block 43, and a second torsion spring 45 is sleeved on the third hinge rod 42, one end of the second torsion spring 45 is fixedly connected to the hinge seat 41, and the other end abuts against the pull block 43, and a second limit block 46 is connected to the pull block 43, and a limit strip 47 for limiting the second limit block 46 is connected to the hinge seat 41, and a first bolt 48 and a second bolt 49 are also connected to the hinge seat 41, and the first bolt 48 and the second bolt 49 both penetrate the two side walls of the hinge seat 41 and are threadedly connected with nuts to maintain the shape of the hinge seat 41, and a notch 50 for limiting is also provided on the locking plate 36, and the locking plate 36 is away from the third hinge rod 42. One end of the three-hinged rod 42 is connected to the first rack 37, and a connecting block 117 is connected to the first rack 37. The connecting block 117 and the first rack 37 are integrally formed, and the connecting block 117 is connected to the locking plate 36. The second rack 38 is arranged on the second mounting plate 29 through a pad 51, and the pad 51 is connected to the second mounting plate 29. The second rack 38 is connected to the pad 51. The second rack 38 is located between the first rack 37 and the third hinged rod 42. The position of the third hinged rod 42 in the vertical direction is above the second rack 38. When the second torsion spring 45 is in a natural state, the tooth on the first rack 37 is clamped between two adjacent teeth on the second rack 38. The first bolt 48 is in the notch 50 and contacts the side wall of the notch 50, so as to limit the locking plate 36 to prevent someone from accidentally touching the handle 44, causing the first rack 37 to squeeze the second rack 38.

[0063] When adjusting the position of the second positioning pin 35, the handle 44 is pulled, the second torsion spring 45 is deformed, and the handle 44 drives the locking plate 36 to rotate through the pulling block 43, thereby driving the first rack 37 to rotate, so that the first rack 37 is separated from the second rack 38, and the positioning of the sliding block 30 is released. The sliding block 30 is slid, and the sliding block 30 drives the second positioning pin 35 to move through the second positioning seat, thereby adjusting the position of the second positioning pin 35. After adjusting the second positioning pin 35 to an appropriate position, the handle 44 is released, the second torsion spring 45 returns to its natural state, and the locking plate 36 rotates under the elastic force of the second torsion spring 45, and the first rack 37 rotates 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, thereby positioning the sliding block 30, and then positioning the second positioning pin 35.

[0064] Reference Figure 8 and Fig. 9 A locking assembly for locking the rotating shaft 4 is connected to the bracket 2 connected to the second positioning assembly. The locking assembly includes a locking disk 52, a mounting block 53, a locking pin 54 and a first spring 55.

[0065] Fig.10 and Fig.11 The locking plate 52 is arranged on the rotating shaft 4, and the rotating shaft 4 is also connected to a counterweight wheel 56. The locking plate 52 and the counterweight wheel 56 are both detachably connected to the rotating shaft 4. The rotating shaft 4 is connected to a stepped shaft 57. The end of the stepped shaft 57 with a larger diameter is connected to the rotating shaft 4 and is rotatably connected to the bracket 2. The portion of the stepped shaft 57 with a smaller diameter is provided with a first linkage groove 58. The first linkage groove 58 is located 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. Fig.10 and Fig.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 located in the locking hole, the counterweight 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 both provided with a second linkage groove 61, the locking sleeve 59 and the counterweight wheel 56 are both sleeved on the smaller diameter part of the stepped shaft 57, the locking sleeve 59 is located between the larger diameter end of the stepped shaft 57 and the counterweight wheel 56, and the locking sleeve 59 is pressed against the stepped shaft At the end with a larger diameter of 57, the second linkage groove 61 is arranged opposite to and connected to the first linkage groove 58, and a linkage bar 62 is inserted between the first linkage groove 58 and the second linkage groove 61. One side of the linkage bar 62 is located in the first linkage groove 58, and the other side is located in the second linkage groove 61. The end with a smaller diameter of the stepped shaft 57 is detachably connected to a mounting plate 63 by a screw. The screw passes through the mounting plate 63 and is threadedly connected to the stepped shaft 57, and the mounting plate 63 is tightly against the counterweight wheel 56.

[0066] Reference Fig. 9 and Fig.10 A plurality of locking grooves 64 are provided on the edge of the locking disk 52, and corresponding numbers are provided at the positions of the locking grooves 64 on the locking disk 52, so as to facilitate the understanding of the rotation amplitude of the rotating locking disk 52. A blocking screw 65 is detachably connected to the locking disk 52 through a thread, and the blocking screw 65 is located in the locking groove 64. The mounting block 53 is arranged on the bracket 2 through a second pad 66, and the second pad 66 is connected to the bracket 2, and the mounting block 53 is connected to the second pad 66.

[0067] Reference Fig.13The mounting block 53 is provided with a first connecting groove 67, a second connecting groove 68 and a third connecting groove 69, the first connecting groove 67 is connected to 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 and the third connecting groove 69 are located on the same side of the mounting block 53, the mounting block 53 is provided with a first connecting hole 70 connecting the second connecting groove 68 and the third connecting groove 69, the mounting block 53 is provided with a fourth connecting groove 85 and a fifth connecting groove 86 on the side away from the second connecting groove 68, the fourth connecting groove 85 is connected to the first connecting groove 67, the fourth connecting groove 85 is located above the fifth connecting groove 86, and the mounting block 53 is provided with a second guide hole 87 for connecting the fourth connecting groove 85 and the fifth connecting groove 86.

[0068] Reference Figure 8 and Fig.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 is located in the first connecting hole 70, the mounting block 53 is threadedly connected with a first blocking bolt 71, the first blocking bolt 71 is threadedly connected in the first connecting hole 70, the bolt cap of the first blocking bolt 71 is located in the third connecting groove 69, the first spring 55 is inserted in the first connecting hole 70 and abuts against the first blocking bolt 71, one end of the first spring 55 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, and the other side is connected to the locking pin 54, the locking pin 54 is connected to the first guide rod 73, the first guide rod 73 passes through the first connecting ring 72 and is inserted into the first spring 55, the locking pin 54 and the mounting block 53 slidingly cooperates, the mounting block 53 is connected with a guide block 74, the guide block 74 is located in the first connecting groove 67, the guide block 74 is provided with a first guide hole 75, the guide block 74 is connected with a first guide sleeve 76, the first guide sleeve 76 is located in the first guide hole 75, the locking pin 54 passes through the first guide sleeve 76 and slides with the first guide sleeve 76, when the first spring 55 is in a natural state, the locking pin 54 is inserted in the locking groove 64, and 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 removed, and the locking pin 54 is used to insert into the locking groove 64. One end is provided with two inclined surfaces 77, and the two inclined surfaces 77 are arranged opposite to each other, so that the locking pin 54 can be smoothly inserted into the locking groove 64 to position the locking disk 52.

[0069] Reference Figure 8 and Fig.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 .

[0070] Reference Figure 8 and Fig.16The mounting block 53 is connected with a second guide sleeve 88, 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, the mounting block 53 is connected with a blocking column 89, one end of the blocking column 89 is located in the fifth connecting groove 86 and is connected with a second connecting ring 90, one end of the second spring 80 is connected to the second connecting ring 90, and the other end 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, and the other side is connected to the sliding rod 79, the sliding rod 79 is slidably matched with the mounting block 53, specifically, the sliding rod 79 It passes through the second guide sleeve 88 and slides with the second guide sleeve 88. The end of the sliding rod 79 away from the second spring 80 is connected to the bottom of the truncated cone slider 78. The end of the sliding rod 79 connected to the truncated cone slider 78 is located in the fourth connecting groove 85. The truncated cone slider 78, the sliding rod 79 and the blocking column 89 are all provided with through holes. The second guide rod 84 is connected to the third limit block 92. The second guide rod 84 passes through the truncated cone slider 78, the sliding rod 79, the third connecting ring 91, the second spring 80, the second connecting ring 90 and the blocking column 89 in sequence. The third limit block 92 is located above the top of the truncated cone slider 78. The second guide rod 84 and the sliding rod 79 are fastened by pins.

[0071] Reference Fig.14 and Fig.15 , the clamping rod 81 is provided with two, and the two clamping rods 81 are hinged on the mounting block 53 through the support block 93. Specifically, the support block 93 is connected to the guide block 74, and the support block 93 and the guide block 74 are integrally formed. The opposite sides of the support block 93 are provided with grooves 94, and the clamping rod 81 is hinged with the support block 93. The hinged part of the clamping rod 81 and the support block 93 is located in the groove 94. The clamping rod 81 is located on both sides of the locking disk 52 and is located on the truncated cone-shaped slider On both sides of 78, one end of the clamping rod 81 is hinged to the clamping block 82, and a rubber sheet 95 is connected to the clamping block 82. The other end of the clamping rod 81 is rotatably connected to the pulley 83. When the second spring 80 is in a natural state, the pulleys 83 on the two clamping rods 81 are pressed against the side wall of the truncated cone-shaped slider 78, and the clamping blocks 82 on the two clamping rods 81 clamp the locking disk 52 through the rubber sheet 95. The rubber sheet 95 is pressed against the side wall of the locking disk 52 to position the locking disk 52.

[0072] Reference Fig.16 The mounting block 53 is also connected to a synchronous adjustment assembly, which includes a synchronous adjustment rod 96, a first synchronous wheel 97 and a second synchronous wheel 98.

[0073] Reference Figure 8 and Fig.13The synchronous adjustment rod 96 passes through the fourth connection groove 85, the first connection groove 67 and the second connection groove 68. One end of the synchronous adjustment rod 96 is hinged to the mounting block 53 through the first hinge rod. The first hinge rod is located at the third connection groove 69. Figure 8 and Fig.16 A waist-shaped groove 99 is provided on the synchronous adjustment rod 96, and the first synchronous wheel 97 is rotatably connected to the synchronous adjustment rod 96 and is located in the waist-shaped groove 99, and the first synchronous wheel 97 is located above the truncated cone slider 78 and the third limit block 92, and part of the first synchronous wheel 97 protrudes from the waist-shaped groove 99 and abuts against the third limit block 92.

[0074] Reference Fig.14 and Fig.16 The locking pin 54 is provided with two moving planes, which are arranged opposite to each other. The portion of the locking pin 54 provided with the moving planes passes through the waist-shaped groove 99 so that the synchronous adjustment rod 96 can rotate smoothly. The second synchronous wheel 98 is rotatably connected to the portion of the locking pin 54 provided with the moving planes. The synchronous adjustment rod 96 is located above the second synchronous wheel 98 and contacts the second synchronous wheel 98 through the third pad 100. Fig.16 and Fig.17 The third pad 100 is disposed on the synchronous adjustment rod 96 and contacts the second synchronous wheel 98 . The third pad 100 is provided with a notch for the locking pin 54 to pass through smoothly.

[0075] Reference Figure 8 and Fig. 9 , the mounting block 53 is connected with a stabilizing adjustment component, which includes a stabilizing block 101, a stabilizing rod 102, a stabilizing plate 103 and a protective plate 104. The stabilizing block 101 is hinged to the synchronous adjustment rod 96 through a second hinge rod, the center line of the first hinge rod and the center line of the second hinge rod are perpendicular to each other, the second hinge rod is sleeved with a first torsion spring 105, and an abutment rod 106 is provided on the stabilizing block 101. One end of the first torsion spring 105 is fixedly connected to the synchronous adjustment rod 96, and the other end is tightly abutted against the abutment rod 106. The stabilizing rod 102 is connected to the stabilizing block 101, and the stabilizing plate 103 is connected to the protective plate 104. It is connected to the mounting block 53, the protective plate 104 is connected to the mounting block 53 and blocks the second connecting groove 68 to protect the first spring 55, the stabilizing plate 103 is connected to the protective plate 104, and a stabilizing groove is provided on the stabilizing plate 103, the stabilizing groove includes an unlocking groove 108, a locking groove 109 and a connecting groove 110, one end of the connecting groove 110 is connected to the locking groove 109, and the other end is connected to the unlocking groove 108, the length of the unlocking groove 108 is greater than the length of the locking groove 109, the stabilizing rod 102 passes through the stabilizing groove, and when the first torsion spring 105 is in a natural state, the stabilizing rod 102 is in the locking groove 109.

[0076] When it is necessary to release the positioning of the locking disk 52, the stabilizing rod 102 is lifted up and then rotated. The first torsion spring 105 is deformed by the force, and the stabilizing rod 102 is rotated from the locking groove 109 to the unlocking groove 108, and a force is applied downward to the stabilizing rod 102 to press the stabilizing rod 102 downward, and the stabilizing rod 102 drives the synchronous adjustment rod 96 to rotate downward. During the rotation of the synchronous adjustment rod 96, the first synchronous wheel 97 moves downward to apply pressure to the third limit block 92 and the truncated cone slider 78, the truncated cone slider 78 and the second guide rod 84 move downward, the second spring 80 is compressed, the pulley 83 no longer presses against the truncated cone slider 78, the clamping block 82 is loosened and no longer clamps the locking disk 52, the synchronous adjustment rod 96 presses the second synchronous wheel 98 downward, the second synchronous wheel 98 drives the locking pin 54 to move, the first spring 55 is compressed, and the locking pin 54 is moved out of the locking groove 64, thereby quickly releasing the positioning of the locking disk 52.

[0077] When the locking disk 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 their natural state, and the stabilizing rod 102 is lifted upward. When the stabilizing rod 102 moves to the connection between the connecting groove 110 and the unlocking groove 108, the force applied to the stabilizing rod 102 is released, the first torsion spring 105 returns to its natural state, and the stabilizing rod 102 automatically moves into the locking groove 109. Since the locking groove 109 is short, the stabilizing rod 102 cannot move downward over a large range in the locking groove 109. When the staff accidentally touches the stabilizing rod 102, the positioning of the locking plate 36 cannot be released, thereby improving the safety performance during use.

[0078] Reference Fig.18 A counterweight block 111 is detachably connected to the counterweight wheel 56. The counterweight block 111 can be set to be several, and the staff can install or remove the counterweight block 111 according to the required number. The counterweight block 111 is set to be arc-shaped. In this embodiment, the number of the counterweight blocks 111 is set to three, and the sizes of the three counterweight blocks 111 are different. Each counterweight block 111 includes a first arc block 112 and a second arc block 113. The first arc block 112 is located on one side of the counterweight wheel 56, and the second arc block 113 is located on the other side of the counterweight wheel 56. The first arc block 112 and the second arc block 113 are detachably connected to the counterweight wheel 56 by screws. The screws pass through the first arc block 112 and the counterweight wheel 56 and are threadedly connected to the second arc block 113.

[0079] The implementation principle of the flip positioner of the present application embodiment is as follows: when assembling a workpiece, first install the workpiece, rotate the anti-slip threaded rod 26, remove the plug 27 from the socket 28, rotate the locking handle 12, move the first positioning pin 14 in the direction away from the second positioning component, pull the handle 44, release the positioning of the sliding block 30, slide the sliding block 30, and the sliding block 30 drives the second positioning pin 35 to move through the second positioning seat, so that the second positioning pin 35 moves in the direction away from the first positioning component, and the workpiece is placed between the first unit component and the second positioning component, and then the lock is rotated. Tighten the handle 12 to move the first locating pin 14 toward the workpiece and insert it into the workpiece, rotate the anti-slip threaded rod 26, insert the plug 27 into the socket 28, position the first locating pin 14, move the sliding block 30, insert the second locating pin 35 into the workpiece, and then release the force on the handle 44. The locking plate 36 rotates under the elastic force of the second torsion spring 45, and the first rack 37 rotates 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, and the second locating pin 35 is positioned. At this time, the installation of the workpiece is completed.

[0080] After the workpiece is installed, the counterweight wheel 56 is rotated, and the counterweight wheel 56 drives the locking plate 52 and the workpiece to rotate. After one side of the workpiece is rotated to a position suitable for assembly, the locking plate 52 is locked, and the blocking screw 65 in the locking groove 64 corresponding to the locking pin 54 is removed, so that the first spring 55 and the second spring 80 are in a natural state, and the locking pin 54 is inserted into the locking groove 64, and the clamping block 82 clamps the locking plate 52, thereby positioning the locking plate 52 and then positioning the workpiece to prevent the workpiece from rotating during assembly.

[0081] Since the workpiece is often irregular in shape, after the locking plate 52 is positioned, a corresponding number and size of counterweight blocks 111 are installed on the counterweight wheel 56 as required to balance the weight of the workpiece, facilitate the workpiece to maintain balance, and facilitate assembly of one surface of the workpiece.

[0082] When one surface of the workpiece is assembled and the other surface of the workpiece needs to be assembled, the locking plate 52 is first released, the stabilizing rod 102 is rotated from the locking groove 109 to the unlocking groove 108, and the stabilizing rod 102 is pressed downward. The stabilizing rod 102 drives the synchronous adjustment rod 96 to rotate downward, the first spring 55 and the second spring 80 are compressed, the clamping block 82 no longer clamps the locking plate 52, and the locking pin 54 is moved out of the locking groove 64, thereby releasing the positioning of the locking plate 52, and the counterweight wheel 56 is rotated to rotate the locking plate 52 and the workpiece, and the other surface of the workpiece is rotated to the appropriate position. The locking pin 54 is inserted into the locking groove 64 to position the locking disk 52 and the workpiece so as to position the other side of the workpiece for assembly. This achieves the purpose of assembling one side of the workpiece, flipping it over and then assembling the other side, and has a high assembly efficiency.

Claims

1. A reversible positioner, characterized in that: It comprises a bracket (2), a first positioning component for positioning a workpiece, and a second positioning component for positioning the workpiece; The brackets (2) are provided in pairs, the first positioning assembly is rotatably connected to one bracket (2) via a rotating shaft (4), and the second positioning assembly is rotatably connected to the other bracket (2) via a rotating shaft (4); The bracket (2) is provided with a locking assembly for locking the rotating shaft (4), the locking assembly comprising a locking disk (52), a mounting block (53), a locking pin (54) and a first spring (55), the locking disk (52) being arranged on the rotating shaft (4), a plurality of locking grooves (64) being arranged on the edge of the locking disk (52), the mounting block (53) being arranged on the bracket (2), one end of the first spring (55) being connected to the mounting block (53), and the other end being connected to the locking pin (54), the locking pin (54) being slidably matched with the mounting block (53), when the first spring (55) is in a natural state, the locking pin (54) is inserted into the locking groove (64), the mounting block (53) is provided with a clamping assembly, the clamping assembly comprising a truncated cone-shaped slider (78), a sliding 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 slider (78), and the other end is connected to the second spring (80). The sliding rod (79) is slidably matched with the mounting block (53). The clamping rod (81) is provided in two pieces. The two clamping rods (81) are hinged on the mounting block (53). The clamping rods (81) are located on both sides of the locking disk (52) and on both sides of the truncated cone-shaped slider (78). One end of the clamping rod (81) is hinged to the clamping block (82), and the other end is rotatably connected to the pulley (83). When the second spring (80) is in a natural state, the two clamping rods (81) are The pulleys (83) of the two clamping rods (81) are pressed against the side wall of the truncated cone-shaped slider (78), the clamping blocks (82) on the two clamping rods (81) clamp the locking disk (52), and the mounting block (53) is also provided with a synchronous adjustment component, which includes a synchronous adjustment rod (96), a first synchronous wheel (97) and a second synchronous wheel (98), one end of the synchronous adjustment rod (96) is hinged to the mounting block (53) through a first hinge rod, the first synchronous wheel (97) is rotatably connected to the synchronous adjustment rod (96) and is located above the truncated cone-shaped slider (78), the synchronous adjustment rod (96) is provided with a waist groove (99), the locking pin (54) passes through the waist groove (99), the second synchronous wheel (98) is rotatably connected to the locking pin (54), and the synchronous adjustment rod (96) Located above the second synchronous wheel (98), the mounting block (53) is connected with a stabilizing adjustment component, which includes a stabilizing block (101), a stabilizing rod (102) and a stabilizing plate (103). The stabilizing block (101) is hinged to the synchronous adjustment rod (96) through a second hinge rod. The center line of the first hinge rod and the center line of the second hinge rod are perpendicular to each other. The stabilizing rod (102) is connected to the stabilizing block (101). The stabilizing plate (103) is connected to the mounting block (53). The stabilizing plate (103) is provided with a stabilizing groove, which includes an unlocking groove (108), a locking groove (109) and a connecting groove (110). One end of the connecting groove (110) is connected to the locking groove (109), and the other end is connected to the unlocking groove (108).The length of the unlocking slot (108) is greater than the length of the locking slot (109), the stabilizing rod (102) passes through the stabilizing slot, the second hinged rod is sleeved with a first torsion spring (105), the stabilizing block (101) is provided with an abutting rod (106), one end of the first torsion spring (105) is fixedly connected to the synchronous adjustment rod (96), and the other end is tightly abutted against the abutting rod (106), when the first torsion spring (105) is in a natural state, the stabilizing rod (102) is in the locking slot (109), the rotating shaft (4) is connected with a counterweight wheel (56), and the counterweight wheel (56) is detachably connected with a counterweight block (111).

2. The reversible positioner according to claim 1, characterized in that: The counterweight wheel (56) is detachably connected to the rotating shaft (4).

3. The reversible positioner according to claim 1, characterized in that: The first positioning assembly comprises a first positioning seat and a first positioning member. The first positioning seat is arranged on the rotating shaft (4). The first positioning member comprises a first locking block (11), a locking handle (12), a linkage rod (13), a first positioning pin (14) and a first positioning strip (15). The first locking block (11) is connected to the first positioning seat. The locking handle (12) is hinged on the first locking block (11). One end of the linkage rod (13) is hinged to the locking handle (12), and the other end is hinged to the first positioning strip (15). The first positioning pin (14) is connected to the first positioning strip (15). The first positioning pin (14) passes through the first positioning seat and is slidably matched with the first positioning seat.

4. The reversible positioner according to claim 1, characterized in that: The second positioning assembly comprises a second mounting plate (29), a sliding block (30), a second positioning seat and a second positioning member. The second mounting plate (29) is arranged on the rotating shaft (4). The sliding block (30) is slidably connected to the second mounting plate (29). The second positioning seat is arranged on the sliding block (30). The second positioning member 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 hinge rod (42), and the other end is connected to the first rack (37). The second rack (38) is arranged on the second mounting plate (29). The third hinge rod (42) is located above the second rack (38) in the vertical direction. When the tooth on the first rack (37) is 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).

5. The reversible positioner according to claim 1, characterized in that: The rotating shafts (4) on the two brackets (2) are connected via a synchronization rod (5).

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