Positioning mechanism and buckling and pressing equipment

Abstract

The utility model discloses a positioning mechanism and buckling and pressing equipment. The positioning mechanism comprises a support, a manual jacking module, an automatic transferring module, a workpiece containing disc and an automatic jacking module, the manual jacking module is fixed to the support, the automatic transferring module is fixed to the manual jacking module, the automatic transferring module can be jacked by the manual jacking module in the vertical direction, the workpiece containing disc is fixed to the automatic transferring module, and the workpiece containing disc is fixed to the automatic jacking module. The workpiece containing disc can be moved by the automatic transferring module in the horizontal direction, the automatic jacking module is fixed to the workpiece containing disc, and the automatic jacking module can tightly press workpieces in the workpiece containing disc. In this way, the positioning mechanism can enrich the types of products machined by the buckling and pressing equipment and improve the adaptability of the buckling and pressing equipment.

Description

Technical Field

[0001] This application relates to the field of automotive parts production equipment, and particularly to a positioning mechanism and a crimping device. Background Art

[0002] Currently, the electric tailgate of a vehicle is generally realized by installing an electric strut. The process of crimping a disc onto a rod is involved in the production of the electric strut. However, the existing crimping devices have problems such as a single processed product model and poor adaptability. Summary of the Utility Model

[0003] A positioning mechanism and a crimping device provided by this application can solve the problems of a single processed product model and poor adaptability existing in the existing crimping devices.

[0004] To solve the above technical problems, a technical solution adopted by this application is: providing a positioning mechanism, the positioning mechanism includes: a bracket; a manual jacking module fixed to the bracket; an automatic transfer module fixed to the manual jacking module, the automatic transfer module can be jacked up vertically by the manual jacking module; a workpiece placement plate fixed to the automatic transfer module, the workpiece placement plate can be moved horizontally by the automatic transfer module; an automatic pressing module fixed to the workpiece placement plate, the automatic pressing module can press the workpiece in the workpiece placement plate.

[0005] In one embodiment, the bracket includes a bottom plate, the bottom plate is provided with an adjustable clamping member and a plurality of first shoulder bushings distributed on both sides of the adjustable clamping member, the manual jacking module includes a first screw-nut assembly, a first connecting plate, a plurality of first guide rods and a receiving plate, the plurality of first guide rods are distributed on both sides of the first screw-nut assembly, the first guide rods pass through the first shoulder bushings and are fixed between the first connecting plate and the receiving plate, the first screw-nut assembly includes a first screw and a first nut screwed onto the first screw, the first nut is fixed to the bottom plate and is coaxially arranged with the adjustable clamping member, the first screw passes through the adjustable clamping member, one end of the first screw is fixed to the receiving plate, and the other end of the first screw is rotatably fixed to the first connecting plate.

[0006] In one embodiment, the first connecting plate is provided with a ball bearing, the other end of the first screw passes through the ball bearing, and the manual jacking module further includes a rotating handle fixed to the other end of the first screw.

[0007] In one embodiment, the automatic transfer module is a motor linear module, and the workpiece placement plate is fixed to the slider of the motor linear module.

[0008] In one embodiment, the automatic pressing module includes a mounting component, a double-rod cylinder, and a pressing strip. The double-rod cylinder is fixed to the mounting component, the mounting component is fixed to the workpiece placement plate, the pressing strip is fixed to the piston rod of the double-rod cylinder, and the pressing strip can press the workpiece on the workpiece placement plate under the drive of the double-rod cylinder.

[0009] In one embodiment, the mounting component includes a mounting plate and a mounting block. One end of the mounting plate is fixed to the workpiece placement plate, the mounting block is fixed to the other end of the mounting plate. A sliding groove is provided on one side of the mounting block facing the mounting plate, and the other end of the mounting plate is disposed in the sliding groove. A limiting groove is provided on one side of the mounting block facing the double-rod cylinder, and the cylinder body of the double-rod cylinder is disposed in the limiting groove.

[0010] In one embodiment, a V-shaped groove is provided on one side of the workpiece placement plate facing the double-rod cylinder, and an arc-shaped groove is provided on one side of the pressing strip facing the workpiece placement plate.

[0011] In one embodiment, the positioning mechanism further includes a first manual pressing module. The first manual pressing module is fixed to the automatic transfer module, the workpiece placement plate is fixed to the first manual pressing module, and the first manual pressing module can press the workpiece on the workpiece placement plate tightly along the horizontal direction from one end.

[0012] In one embodiment, the first manual pressing module includes a second screw-nut assembly, a slider assembly, a plurality of second shoulder bushings, a plurality of second guide rods, a first end plate, a second end plate, and a second connecting plate. The first end plate is fixed to one end of the second connecting plate, the second end plate is fixed to the other end of the second connecting plate, the workpiece placement plate is fixed to the first end plate and the second end plate, the second connecting plate is fixed to the automatic transfer module. The second screw-nut assembly includes a second screw and a second nut screwed to the second screw. The second nut is fixed to the slider assembly. The plurality of second shoulder bushings are distributed on both sides of the second nut and fixed to the slider assembly. The second guide rods are fixed between the first end plate and the second end plate and pass through the second shoulder bushings. One end of the second screw is rotatably fixed to the first end plate, and the other end of the second screw is rotatably fixed to the second end plate.

[0013] In one embodiment, the slider assembly includes a slider and a pressing column fixed to the slider. The slider includes a mounting portion and a sliding portion connected to the mounting portion. A V-shaped groove is provided on a side of the workpiece placement plate facing away from the automatic transfer module, and a strip-shaped through hole communicating with the V-shaped groove is provided on a side of the workpiece placement plate facing the automatic transfer module. The sliding portion passes through the strip-shaped through hole and enters the V-shaped groove. The pressing column is disposed in the V-shaped groove and one end thereof is fixed to the sliding portion. Driven by the second lead screw, the second nut can drive the pressing column in the slider assembly to slide in the V-shaped groove, so that the other end of the pressing column can press the workpiece in the V-shaped groove.

[0014] In one embodiment, the slider assembly includes a slider and a pressing column fixed to the slider. The slider is provided with a through hole and a plurality of separated through holes distributed on both sides of the through hole. The second nut is inserted through the through hole and fixed to the slider. The second guide rod is inserted through the separated through holes. Countersunk holes are provided on both sides of the slider perpendicular to the second guide rod, and the second guide rod can be fastened by a fastener screwed into the countersunk holes.

[0015] In one embodiment, the positioning mechanism further includes a second manual pressing module. The bracket includes a vertical plate, and the second manual pressing module is fixed to the vertical plate. The second manual pressing module can press the workpiece in the workpiece placement plate from the other end in the horizontal direction.

[0016] In one embodiment, the second manual pressing module includes a pressing head for pressing the workpiece in the workpiece placement plate; the second manual pressing module further includes a scale for displaying the distance that the pressing head moves in the horizontal direction.

[0017] Another technical solution adopted by this application is: to provide a crimping device, and the crimping device includes the positioning mechanism described in any one of the above.

[0018] The beneficial effect of this application is: different from the prior art, the positioning mechanism provided by this application includes: a bracket; a manual lifting module fixed to the bracket; an automatic transfer module fixed to the manual lifting module, and the automatic transfer module can be lifted vertically by the manual lifting module; a workpiece placement plate fixed to the automatic transfer module, and the workpiece placement plate can be moved horizontally by the automatic transfer module; an automatic pressing module fixed to the workpiece placement plate, and the automatic pressing module can press the workpiece in the workpiece placement plate. In this way, the positioning mechanism can enrich the product models processed by the crimping device and improve the adaptability of the crimping device. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of the positioning mechanism provided by the embodiment of the present application;

[0021] Figure 2 is a schematic structural diagram of the bracket provided by the embodiment of the present application;

[0022] Figure 3 is a schematic structural diagram of the manual lifting module provided by the embodiment of the present application;

[0023] Figure 4 is Figure 3 a partial enlarged view of the manual lifting module at area A;

[0024] Figure 5 is a schematic structural diagram of the automatic transfer module provided by the embodiment of the present application;

[0025] Figure 6 is a schematic structural diagram of the workpiece placement tray provided by the embodiment of the present application;

[0026] Figure 7 is a schematic structural diagram of the automatic pressing module provided by the embodiment of the present application;

[0027] Figure 8 is an exploded view of the automatic pressing module provided by the embodiment of the present application;

[0028] Figure 9 is a schematic structural diagram of the first manual tightening module provided by the embodiment of the present application;

[0029] Figure 10 is a schematic structural diagram of the slider assembly provided by the embodiment of the present application;

[0030] Figure 11 is a schematic structural diagram of the second manual tightening module provided by the embodiment of the present application;

[0031] Figure 12 is a schematic structural diagram of the crimping device provided by the embodiment of the present application.

[0032] Explanation of reference numerals:

[0033] 100 - positioning mechanism, 110 - bracket, 111 - bottom plate, 112 - adjustable clamping member, 113 - first shoulder bushing, 114 - vertical plate, 120 - manual lifting module, 121 - first lead screw nut assembly, 1211 - first lead screw, 1212 - first nut, 122 - first connecting plate, 123 - first guide rod, 124 - receiving plate, 125 - ball bearing, 126 - rotating handle, 130 - automatic transfer module, 131 - motor linear module, 1311 - slide block, 140 - workpiece placement plate, 141 - V-shaped groove, 142 - strip-shaped through hole, 143 - workpiece, 150 - automatic pressing module, 151 - mounting assembly, 1511 - mounting plate, 1512 - mounting block, 1512a - sliding groove, 1512b - limiting groove, 152 - double-rod cylinder, 153 - pressing strip, 1531 - arc-shaped groove, 160 - first manual tightening module, 161 - second lead screw nut assembly, 1611 - second lead screw, 1612 - second nut, 162 - slider assembly, 1621 - slider, 1621a - mounting portion, 1621b - sliding portion, 1621c - through hole, 1621d - split through hole, 1621e - counterbore, 1622 - tightening post, 163 - second shoulder bushing, 164 - second guide rod, 165 - first end plate, 166 - second end plate, 167 - second connecting plate, 170 - second manual tightening module, 171 - tightening head, 172 - scale, 1000 - swaging device. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. In addition, it should be noted that, for the sake of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0035] The terms "first", "second", and "third" in this application are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined. In the embodiments of this application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0036] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0037] Please refer to Figure 1 , in this application, the vertical direction refers to the direction where the Z-axis is located, and the horizontal direction refers to the direction where the X-axis is located.

[0038] The positioning mechanism provided by this application includes: a bracket; a manual lifting module fixed to the bracket; an automatic transfer module fixed to the manual lifting module, and the automatic transfer module can be lifted by the manual lifting module in the vertical direction; a workpiece placement plate fixed to the automatic transfer module, and the workpiece placement plate can be moved by the automatic transfer module in the horizontal direction; an automatic pressing module fixed to the workpiece placement plate, and the automatic pressing module can press the workpiece in the workpiece placement plate. In this way, the positioning mechanism can enrich the product models processed by the crimping equipment and improve the adaptability of the crimping equipment.

[0039] Please refer to Figure 1 , Figure 1It is a schematic structural diagram of the positioning mechanism provided by an embodiment of the present application. The positioning mechanism 100 may include, but is not limited to, a bracket 110, a manual lifting module 120, an automatic transfer module 130, a workpiece placement plate 140, and an automatic pressing module 150. The manual lifting module 120 is fixed to the bracket 110. The automatic transfer module 130 is fixed to the manual lifting module 120. The automatic transfer module 130 can be lifted vertically by the manual lifting module 120. In one embodiment, the workpiece placement plate 140 is fixed to the automatic transfer module 130. The workpiece placement plate 140 can be moved horizontally by the automatic transfer module 130, so that the workpiece 143 in the workpiece placement plate 140 enters a preset processing station. The automatic pressing module 150 is fixed to the workpiece placement plate 140 to move with the movement of the workpiece placement plate 140. The automatic pressing module 150 can press the workpiece 143 in the workpiece placement plate 140 to facilitate the processing of the workpiece 143.

[0040] It can be understood that workpieces 143 of different model specifications have different sizes. The height of the workpiece 143 placed in the workpiece placement plate 140 can be adjusted by the manual lifting module 120, so that the central axis of the workpiece 143 and the central axis of the processing station are on the same straight line to ensure the processing effect and accuracy. The settings of the manual lifting module 120 and the automatic transfer module 130 enable the positioning mechanism 100 to be applicable to the processing of workpieces 143 of different model specifications, greatly improving the adaptability.

[0041] Please refer to Figures 1 - 3 , Figure 2 which is a schematic structural diagram of the bracket provided by an embodiment of the present application, Figure 3 and is a schematic structural diagram of the manual lifting module provided by an embodiment of the present application. The bracket 110 may include, but is not limited to, a bottom plate 111, an adjustable clamping member 112, and several first shoulder bushings 113. The adjustable clamping member 112 is arranged on the bottom plate 111. Several first shoulder bushings 113 are distributed on both sides of the adjustable clamping member 112.

[0042] Further, the manual lifting module 120 may include, but is not limited to, a first lead screw nut assembly 121, a first connecting plate 122, a plurality of first guide rods 123, and a receiving plate 124. The plurality of first guide rods 123 are distributed on both sides of the first lead screw nut assembly 121. The first guide rods 123 pass through the first shoulder bushing 113 and are fixed between the first connecting plate 122 and the receiving plate 124 to guide the receiving plate 124 to move in the vertical direction. The first lead screw nut assembly 121 may include, but is not limited to, a first lead screw 1211 and a first nut 1212 screwed onto the first lead screw 1211. The first nut 1212 is fixed to the bottom plate 111 and is coaxially arranged with the adjustable clamping member 112. The first lead screw 1211 passes through the adjustable clamping member 112. The adjustable clamping member 112 can lock the first lead screw 1211 to ensure the safety of processing when the height of the workpiece 143 in the workpiece placement tray 140 does not need to be adjusted, or the adjustable clamping member 112 can adjust the force required for the first lead screw 1211 to be manually rotated to avoid accidental contact with the first lead screw 1211. One end of the first lead screw 1211 is fixed to the receiving plate 124 to lift the receiving plate 124 in the vertical direction. The other end of the first lead screw 1211 is rotatably fixed to the first connecting plate 122.

[0043] Further, please refer to Figure 4 , Figure 4 which Figure 3 is a partial enlarged view of the manual lifting module at area A. The first connecting plate 122 is provided with a ball bearing 125. The other end of the first lead screw 1211 passes through the ball bearing 125. The manual lifting module 120 further includes a rotating handle 126. The rotating handle 126 is fixed to the other end of the first lead screw 1211 to manually rotate the first lead screw 1211 through the rotating handle 126.

[0044] Please refer to Figure 1 and Figure 5 , Figure 5 which

[0045] is a schematic structural diagram of the automatic transfer module provided by an embodiment of the present application. The automatic transfer module 130 includes a motor linear module 131. In one embodiment, the automatic transfer module 130 may be the motor linear module 131. The workpiece placement tray 140 is fixed to the slider 1311 of the motor linear module 131 to move horizontally along with the slider 1311 under the drive of the motor.

[0045] Please refer to Figure 1 and Figures 6 - 8 , Figure 6 which Figure 7 is a schematic structural diagram of the workpiece placement tray provided by an embodiment of the present application, Figure 7 is a schematic structural diagram of the automatic pressing module provided by an embodiment of the present application, Figure 8It is an exploded schematic view of the automatic pressing module provided by an embodiment of the present application. The automatic pressing module 150 may include, but is not limited to, a mounting component 151, a double-rod cylinder 152, and a pressing strip 153. The double-rod cylinder 152 is fixed to the mounting component 151. The mounting component 151 is fixed to the workpiece placement tray 140. The pressing strip 153 is fixed to the piston rod of the double-rod cylinder 152. The pressing strip 153 can press the workpiece 143 in the workpiece placement tray 140 under the drive of the double-rod cylinder 152.

[0046] Further, the mounting component 151 may include, but is not limited to, a mounting plate 1511 and a mounting block 1512. One end of the mounting plate 1511 is fixed to the workpiece placement tray 140. The mounting block 1512 is fixed to the other end of the mounting plate 1511. A sliding groove 1512a is provided on the side of the mounting block 1512 facing the mounting plate 1511. The other end of the mounting plate 1511 is disposed in the sliding groove 1512a. A limiting groove 1512b is provided on the side of the mounting block 1512 facing the double-rod cylinder 152. The cylinder block of the double-rod cylinder 152 is disposed in the limiting groove 1512b.

[0047] Further, a V-shaped groove 141 is provided on the side of the workpiece placement tray 140 facing the double-rod cylinder 152 for placing the cylindrical workpiece 143. An arc groove 1531 is provided on the side of the pressing strip 153 facing the workpiece placement tray 140 to adapt to the outer shape of the workpiece 143, so as to press the workpiece 143.

[0048] Please refer to Figure 1 and Figures 9 - 10 , Figure 9 is a structural schematic view of the first manual tightening module provided by an embodiment of the present application, Figure 10 is a structural schematic view of the slider assembly provided by an embodiment of the present application. The positioning mechanism 100 further includes a first manual tightening module 160. In this embodiment, the first manual tightening module 160 is fixed to the automatic transfer module 130. The workpiece placement tray 140 is fixed to the first manual tightening module 160. The first manual tightening module 160 can press the workpiece 143 in the workpiece placement tray 140 along the horizontal direction from one end.

[0049] Further, the first manual tightening module 160 may include, but is not limited to, a second screw-nut assembly 161, a slider assembly 162, a plurality of second shoulder bushings 163, a plurality of second guide rods 164, a first end plate 165, a second end plate 166, and a second connecting plate 167. The first end plate 165 is fixed to one end of the second connecting plate 167. The second end plate 166 is fixed to the other end of the second connecting plate 167. The workpiece placement tray 140 is fixed to the first end plate 165 and the second end plate 166. The second connecting plate 167 is fixed to the automatic transfer module 130.

[0050] Further, the second lead screw nut assembly 161 may include, but is not limited to, a second lead screw 1611 and a second nut 1612 screwed onto the second lead screw 1611. The second nut 1612 is fixed to the slider assembly 162. A number of second shoulder bushings 163 are distributed on both sides of the second nut 1612 and fixed to the slider assembly 162. The second guide rod 164 is fixed between the first end plate 165 and the second end plate 166 and passes through the second shoulder bushings 163 to guide the slider assembly 162 to move in the horizontal direction. One end of the second lead screw 1611 is rotatably fixed to the first end plate 165. The other end of the second lead screw 1611 is rotatably fixed to the second end plate 166.

[0051] Further, the slider assembly 162 may include, but is not limited to, a slider 1621 and a tightening post 1622 fixed to the slider 1621. The slider 1621 may include, but is not limited to, a mounting portion 1621a and a sliding portion 1621b connected to the mounting portion 1621a. Please refer to FIG. 6 in combination. A V-shaped groove 141 is provided on the side of the workpiece placing plate 140 facing away from the automatic transfer module 130. A strip-shaped through hole 142 communicating with the V-shaped groove 141 is provided on the side of the workpiece placing plate 140 facing the automatic transfer module 130. The sliding portion 1621b passes through the strip-shaped through hole 142 and enters the V-shaped groove 141. The tightening post 1622 is disposed in the V-shaped groove 141 and one end thereof is fixed to the sliding portion 1621b. Driven by the second lead screw 1611, the second nut 1612 can drive the tightening post 1622 in the slider assembly 162 to slide in the V-shaped groove 141, so that the other end of the tightening post 1622 can tighten the workpiece 143 in the V-shaped groove 141.

[0052] Further, the slider 1621 is provided with a through hole 1621c and a number of split through holes 1621d distributed on both sides of the through hole 1621c. The second nut 1612 passes through the through hole 1621c and is fixed to the slider 1311. The second guide rod 164 passes through the split through holes 1621d. Countersunk holes 1621e are provided on both sides of the slider 1621 perpendicular to the second guide rod 164. The second guide rod 164 can be fastened by a fastener screwed into the countersunk hole 1621e. By adjusting the screwing process of the fastener, the second guide rod 164 can be locked when the first manual tightening module 160 is not used, or the force of the second lead screw 1611 being rotated can be adjusted by adjusting the screwing process of the fastener, thereby avoiding accidental contact with the second lead screw 1611.

[0053] Please refer to Figures 1 - 2 and Figure 11 , Figure 11It is a schematic structural diagram of the second manual tightening module provided by an embodiment of the present application. The positioning mechanism 100 further includes a second manual tightening module 170. The bracket 110 further includes a vertical plate 114. The second manual tightening module 170 is fixed to the vertical plate 114. The second manual tightening module 170 can tighten the workpiece 143 in the workpiece placing plate 140 along the horizontal direction from the other end.

[0054] Further, the second manual tightening module 170 may include, but is not limited to, a tightening head 171 and a scale 172. The tightening head 171 is used to tighten the workpiece 143 in the workpiece placing plate 140. The scale 172 is used to display the distance that the tightening head 171 moves along the horizontal direction.

[0055] The positioning mechanism 100 provided by the present application includes: a bracket 110; a manual lifting module 120 fixed to the bracket 110; an automatic transfer module 130 fixed to the manual lifting module 120, and the automatic transfer module 130 can be lifted along the vertical direction by the manual lifting module 120; a workpiece placing plate 140 fixed to the automatic transfer module 130, and the workpiece placing plate 140 can be moved along the horizontal direction by the automatic transfer module 130; an automatic pressing module 150 fixed to the workpiece placing plate 140, and the automatic pressing module 150 can press the workpiece 143 in the workpiece placing plate 140. In this way, the positioning mechanism 100 can enrich the product models processed by the crimping device 1000 and improve the adaptability of the crimping device 1000.

[0056] Please refer to Figure 9 , Figure 9 It is a schematic structural diagram of the crimping device provided by an embodiment of the present application. The crimping device 1000 may include, but is not limited to, the positioning mechanism 100.

[0057] The above are only partial embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A positioning mechanism, characterized in that: include: Bracket; A manual lifting module is fixed to the bracket; An automatic transfer module is fixed to the manual lifting module, and the automatic transfer module can be lifted in a vertical direction by the manual lifting module; A workpiece placement tray is fixed to the automatic transfer module, and the workpiece placement tray can be moved in a horizontal direction by the automatic transfer module; The automatic pressing die set is fixed to the workpiece placement tray, and the automatic pressing die set can press the workpiece in the workpiece placement tray.

2. The positioning mechanism according to claim 1, characterized in that: The bracket includes a base plate, which is provided with an adjustable clamping member and a plurality of first shoulder sleeves distributed on both sides of the adjustable clamping member. The manual lifting module includes a first screw nut assembly, a first connecting plate, a plurality of first guide rods and a socket plate. The plurality of first guide rods are distributed on both sides of the first screw nut assembly. The first guide rod is passed through the first shoulder sleeve and fixed between the first connecting plate and the socket plate. The first screw nut assembly includes a first screw and a first nut screwed to the first screw. The first nut is fixed to the base plate and coaxially arranged with the adjustable clamping member. The first screw is passed through the adjustable clamping member. One end of the first screw is fixed to the socket plate, and the other end of the first screw is rotatably fixed to the first connecting plate.

3. The positioning mechanism according to claim 2, characterized in that: The first connecting plate is provided with a ball bearing, and the other end of the first screw rod passes through the ball bearing. The manual lifting module also includes a rotating handle, and the rotating handle is fixed to the other end of the first screw rod.

4. The positioning mechanism according to claim 1, characterized in that: The automatic transfer module is a motor linear module, and the workpiece placement plate is fixed on a slide seat of the motor linear module.

5. The positioning mechanism according to claim 1, characterized in that: The automatic top pressing module includes a mounting assembly, a double-rod cylinder and a clamping strip, wherein the double-rod cylinder is fixed to the mounting assembly, the mounting assembly is fixed to the workpiece placement plate, the clamping strip is fixed to the piston rod of the double-rod cylinder, and the clamping strip can clamp the workpiece in the workpiece placement plate under the drive of the double-rod cylinder.

6. The positioning mechanism according to claim 5, characterized in that: The mounting assembly includes a mounting plate and a mounting block, one end of the mounting plate is fixed to the workpiece placement plate, the mounting block is fixed to the other end of the mounting plate, the mounting block is provided with a sliding groove on the side facing the mounting plate, the other end of the mounting plate is arranged in the sliding groove, the mounting block is provided with a limiting groove on the side facing the double-rod cylinder, and the cylinder body of the double-rod cylinder is arranged in the limiting groove.

7. The positioning mechanism according to claim 5, characterized in that: A V-shaped groove is provided on one side of the workpiece placement plate facing the double-rod cylinder, and an arc-shaped groove is provided on one side of the pressing strip facing the workpiece placement plate.

8. The positioning mechanism according to claim 1, characterized in that: The positioning mechanism also includes a first manual tightening module, which is fixed to the automatic transfer module, and the workpiece placement tray is fixed to the first manual tightening module. The first manual tightening module can tighten the workpiece in the workpiece placement tray from one end along the horizontal direction.

9. The positioning mechanism according to claim 8, characterized in that: The first manual tightening module includes a second screw nut assembly, a slider assembly, a plurality of second shoulder sleeves, a plurality of second guide rods, a first end plate, a second end plate and a second connecting plate, the first end plate being fixed to one end of the second connecting plate, the second end plate being fixed to the other end of the second connecting plate, the workpiece placement plate being fixed to the first end plate and the second end plate, the second connecting plate being fixed to the automatic transfer module, the second screw nut assembly includes a second screw and a second nut screwed to the second screw, the second nut is fixed to the slider assembly, the plurality of second shoulder sleeves are distributed on both sides of the second nut and are fixed to the slider assembly, the second guide rod is fixed between the first end plate and the second end plate and is passed through the second shoulder sleeve, one end of the second screw is rotatably fixed to the first end plate, and the other end of the second screw is rotatably fixed to the second end plate.

10. The positioning mechanism according to claim 9, characterized in that: The slider assembly includes a slider and a tightening column fixed to the slider, the slider includes a mounting portion and a sliding portion connected to the mounting portion, a V-shaped groove is provided on the side of the workpiece placement plate facing away from the automatic transfer module, a strip through hole connected to the V-shaped groove is provided on the side of the workpiece placement plate facing the automatic transfer module, the sliding portion passes through the strip through hole and enters the V-shaped groove, the tightening column is arranged in the V-shaped groove and one end is fixed to the sliding portion, and under the drive of the second screw rod, the second nut can drive the tightening column in the slider assembly to slide in the V-shaped groove, so that the other end of the tightening column can tighten the workpiece in the V-shaped groove.

11. The positioning mechanism according to claim 9, characterized in that: The slider assembly includes a slider and a tightening column fixed to the slider, the slider is provided with a through hole and a plurality of separate through holes distributed on both sides of the through hole, the second nut is passed through the through hole and fixed to the slider, the second guide rod is passed through the separate through hole, the slider is provided with countersunk holes on both sides perpendicular to the second guide rod, and the second guide rod can be fastened by fasteners screwed to the countersunk holes.

12. The positioning mechanism according to claim 1, characterized in that: The positioning mechanism also includes a second manual pressing module, the bracket includes a vertical plate, the second manual pressing module is fixed to the vertical plate, and the second manual pressing module can press the workpiece in the workpiece placement plate from the other end in the horizontal direction.

13. The positioning mechanism according to claim 12, characterized in that: The second manual tightening module includes a tightening head, which is used to tighten the workpiece in the workpiece placement plate; the second manual tightening module also includes a ruler, which is used to display the distance moved by the tightening head in the horizontal direction.

14. A crimping device, characterized in that: Comprising a positioning mechanism as described in any one of claims 1-13.

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