Assembly mechanism

Abstract

The utility model provides an assembling mechanism which is used for installing a torsion spring on an installation column of a workpiece, the torsion spring comprises a spiral body, a first torsion arm and a second torsion arm, and the first torsion arm and the second torsion arm are connected to the spiral body. The assembling assembly comprises a rotating part, a guiding part, a limiting part and a pushing part, the rotating part is rotationally connected with the bearing seat, the guiding part is arranged on the rotating part, the torsional spring is used for sleeving the guiding part, the limiting part is rotationally connected with the rotating part, a rotating shaft of the limiting part is perpendicular to a rotating shaft of the rotating part, and the limiting part is used for abutting against the first torque arm and the second torque arm to the rotating part; the pushing piece movably penetrates through the rotating piece in the direction parallel to the rotating shaft of the limiting piece and is used for pushing the torsional spring to be separated from the guiding piece. And the positioning carrier is used for positioning the workpiece and is detachably connected with the bearing seat. The assembly mechanism is simple in operation and low in labor intensity, improves the assembly efficiency of the torsional spring, is simple in structure and easy to manufacture, and reduces the assembly cost of the torsional spring.

Description

Technical Field

[0001] The utility model relates to the technical field of torsion spring installation, and particularly relates to an assembly mechanism. Background Art

[0002] When assembling a torsion spring onto a workpiece, a human or a manipulator is used to drive the torsion spring to move so as to assemble the torsion spring onto the workpiece. However, the manual operation method has a high labor intensity and low assembly efficiency, while the manipulator will increase the assembly cost of the torsion spring. Summary of the Utility Model

[0003] In view of the above, it is necessary to provide an assembly mechanism to improve the assembly efficiency on the basis of low cost.

[0004] An embodiment of the utility model provides an assembly mechanism for installing a torsion spring onto an installation post of a workpiece. The torsion spring includes a spiral body, a first torsion arm and a second torsion arm connected to the spiral body. The assembly mechanism includes:

[0005] A bearing seat;

[0006] An assembly component, including a rotating member, a guiding member, a limiting member and a pushing member. The rotating member is rotatably connected to the bearing seat. The guiding member is arranged on the rotating member. The torsion spring is used to be sleeved on the guiding member. The limiting member is rotatably connected to the rotating member, and the rotation axis of the limiting member is perpendicular to the rotation axis of the rotating member. The limiting member is used to abut the first torsion arm and the second torsion arm against the rotating member. The pushing member is movably inserted through the rotating member along a direction parallel to the rotation axis of the limiting member for pushing the torsion spring away from the guiding member;

[0007] A positioning carrier for positioning the workpiece and detachably connecting to the bearing seat; wherein,

[0008] When the positioning carrier with the workpiece is installed on the bearing seat, the rotating member drives the torsion spring to rotate to correspond to the installation post, so as to push the torsion spring away from the guiding member by the pushing member and sleeve the torsion spring onto the installation post.

[0009] In some embodiments, the bearing seat is provided with a rotating groove. The rotating member includes:

[0010] A rotating body movably received in the rotating groove;

[0011] A movable pin inserted through the rotating body and the side wall of the rotating groove to enable the rotating body to rotate relative to the bearing seat;

[0012] An assembly, connecting the rotating body and rotatably connected to the limiting member, the guiding member is provided on the assembly, and the pushing member movably penetrates through the rotating body and the assembly.

[0013] In some embodiments, the assembly is provided with a guiding hole, the pushing member is provided with a pushing groove and a moving hole, the pushing member is inserted into the guiding hole, the moving hole penetrates through the side wall of the pushing groove and communicates with the guiding hole, and the moving hole is arranged along the moving direction of the pushing member. The guiding member includes a guiding body and a resisting pin. Part of the guiding body is accommodated in the guiding hole and extends to the pushing groove. The resisting pin penetrates through the guiding body and the moving hole and abuts against the side wall of the guiding hole.

[0014] In some embodiments, the rotating body is provided with a sliding hole and a limiting hole. The sliding hole penetrates through the rotating body along the moving direction of the pushing member. The limiting hole penetrates through the side wall of the sliding hole. The pushing member includes a pushing body and a stop pin. The pushing body is movably inserted into the sliding hole and the guiding hole. The pushing groove and the moving hole are respectively arranged on the pushing body. The stop pin is inserted into the pushing body along the direction perpendicular to the moving direction of the pushing member and extends to the limiting hole.

[0015] In some embodiments, the limiting member includes:

[0016] A limiting body, movably arranged on the rotating body;

[0017] A limiting pin, inserted into the limiting body and the assembly along the moving direction of the pushing member, so that the limiting body rotates relative to the assembly.

[0018] In some embodiments, the assembly is further provided with a clamping groove. The limiting body includes:

[0019] A main body part, movably arranged on the rotating body;

[0020] A limiting part, connecting the main body part, and the limiting pin is movably inserted into the limiting part;

[0021] A clamping part, connecting the limiting part and arranged on the same side of the main body part as the limiting part. The clamping part is used for clamping into the clamping groove to fix the limiting body.

[0022] In some embodiments, a chamfer is provided at one end of the clamping part away from the main body part.

[0023] In some embodiments, the bearing seat includes:

[0024] A bearing member;

[0025] A supporting member, arranged on the periphery of the bearing member and rotatably connected to the rotating member;

[0026] The mounting member is provided at the periphery of the carrier member and is used for detachably connecting with the positioning carrier; wherein,

[0027] The support member, the mounting member and the carrier member enclose an activity space for accommodating the positioning carrier.

[0028] In some embodiments, the positioning carrier is a metal component, and the mounting member includes:

[0029] A mounting plate, which is connected to the periphery of the carrier member;

[0030] A plurality of positioning pins, all of which are connected to the side of the mounting plate facing the activity space, and the plurality of positioning pins are arranged at intervals along the circumference of the mounting plate for positioning the positioning carrier;

[0031] A magnetic body, which is embedded in the mounting plate for adsorbing the positioning carrier.

[0032] In some embodiments, the positioning carrier includes:

[0033] A positioning plate, which is provided with a positioning groove for accommodating the workpiece, and the positioning plate is detachably connected to the bearing seat;

[0034] A retaining pin, which is provided on the positioning plate and is located on the periphery of the positioning groove;

[0035] A cover plate, which is rotatably connected to the positioning plate to be clamped on the retaining pin and cover the positioning groove.

[0036] In the above assembly mechanism, the positioning carrier positions the workpiece. When the positioning carrier with the workpiece is installed on the bearing seat, the rotating member drives the torsion spring to rotate to correspond to the mounting post, and the pushing member pushes the torsion spring away from the guiding member so that the torsion spring is sleeved on the mounting post, thereby realizing the assembly of the torsion spring and the workpiece. Therefore, the operation of the above assembly mechanism is simple, the labor intensity is low, the assembly efficiency of the torsion spring is improved. In addition, the structure of the above assembly mechanism is simple and easy to manufacture, reducing the assembly cost of the torsion spring. Description of the Drawings

[0037] Figure 1 It is a schematic structural diagram of the workpiece and the torsion spring applicable to the embodiment of the present invention.

[0038] Figure 2 It is a schematic structural diagram of the assembly mechanism according to the embodiment of the present invention.

[0039] Figure 3 For Figure 2 The schematic structural diagram of the assembly component in the shown assembly mechanism.

[0040] Figure 4 ForFigure 2 Schematic structural diagram of another state of the bearing seat and the assembly component in the shown assembly mechanism.

[0041] Figure 5 For Figure 2 Schematic structural diagram of the positioning carrier in the shown assembly mechanism.

[0042] Figure 6 For Figure 3 Exploded schematic diagram of the shown assembly component.

[0043] Description of main component symbols

[0044] Assembly mechanism 100

[0045] Bearing seat 110

[0046] Moving space 110a

[0047] Carrier 111

[0048] Support 112

[0049] Rotating groove 112a

[0050] Mounting part 113

[0051] Mounting plate 1131

[0052] Magnetic body 1132

[0053] Positioning pin 1133

[0054] Assembly component 120

[0055] Rotating part 121

[0056] Rotating body 1211

[0057] Sliding hole 1211a

[0058] Limit hole 1211b

[0059] Moving pin 1212

[0060] Assembly body 1213

[0061] Guide hole 1213a

[0062] Card slot 1213b

[0063] Guide part 122

[0064] Guide body 1221

[0065] Abutting pin 1222

[0066] Limiting part 123

[0067] Positioning body 1231

[0068] Main body portion 1231a

[0069] Positioning portion 1231b

[0070] Clamping portion 1231c

[0071] Chamfer 1231d

[0072] Positioning pin 1232

[0073] Pushing member 124

[0074] Pushing groove 124a

[0075] Moving hole 124b

[0076] Pushing body 1241

[0077] Stop pin 1242

[0078] Positioning carrier 130

[0079] Positioning plate 131

[0080] Positioning groove 131a

[0081] Locking pin 132

[0082] Cover plate 133

[0083] Rotating shafts a, b

[0084] Workpiece 200

[0085] Mounting groove 200a

[0086] Mounting post 200b

[0087] Torsion spring 300

[0088] Spiral body 310

[0089] First torsion arm 320

[0090] Second torsion arm 330 Detailed implementation manners

[0091] The following details the implementation manners of the present utility model. Examples of the implementation manners are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The implementation manners described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0092] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0093] The following will describe each embodiment of this case in detail with reference to the accompanying drawings.

[0094] Please refer to Figure 1 , Figure 1 FIG. is a schematic structural diagram of a workpiece and a torsion spring applicable to this embodiment. Specifically, the workpiece 200 is generally annular, and an installation groove 200a is provided on the periphery of the workpiece 200. An installation post 200b is provided in the installation groove 200a. The torsion spring 300 includes a spiral body 310 and a first torsion arm 320 and a second torsion arm 330 connected to the spiral body 310. The spiral body 310 is used to be sleeved on the installation post 200b. When the spiral body 310 is sleeved on the installation post 200b, the first torsion arm 320 and the second torsion arm 330 protrude from the installation groove 200a.

[0095] Please refer to Figure 2 and Figure 3 , an assembly mechanism 100 is provided in an embodiment of the present utility model for installing the torsion spring 300 onto the installation post 200b of the workpiece 200. The assembly mechanism 100 includes a carrier seat 110, an assembly component 120, and a positioning carrier 130. The assembly component 120 includes a rotating member 121, a guiding member 122, a limiting member 123, and a pushing member 124. The rotating member 121 is rotatably connected to the carrier seat 110. The guiding member 122 is provided on the rotating member 121. The torsion spring 300 is used to be sleeved on the guiding member 122. The limiting member 123 is rotatably connected to the rotating member 121, and the rotation axis a of the limiting member 123 is perpendicular to the rotation axis b of the rotating member 121. The limiting member 123 is used to abut the first torsion arm 320 and the second torsion arm 330 against the rotating member 121. The pushing member 124 movably penetrates through the rotating member 121 along a direction parallel to the rotation axis b of the limiting member 123 for pushing the torsion spring 300 away from the guiding member 122. The positioning carrier 130 is used to position the workpiece 200 and is detachably connected to the carrier seat 110. Wherein, when the positioning carrier 130 with the workpiece 200 is installed on the carrier seat 110, the torsion spring 300 is driven by the rotating member 121 to rotate to correspond to the installation post 200b, so as to push the torsion spring 300 away from the guiding member 122 through the pushing member 124 and sleeve the torsion spring 300 onto the installation post 200b.

[0096] In this embodiment, the rotating member 121 can rotate 90° relative to the carrier base 110. Specifically, when the positioning carrier 130 with the workpiece 200 is not assembled to the carrier base 110, the rotating member 121 is perpendicular to the carrier base 110. At this time, the state of the assembly component 120 and the carrier base 110 is as shown in Figure 4 shown. After the positioning carrier 130 with the workpiece 200 is assembled to the carrier base 110, it drives the rotating member 121 to rotate 90° relative to the carrier base 110 in the direction close to the positioning carrier 130, so as to facilitate the pusher 124 to push the torsion spring 300 onto the mounting post 200b of the workpiece 200. At this time, the state of the assembly component 120 and the carrier base 110 is as shown in Figure 2 shown.

[0097] In other embodiments, the rotation angle of the rotating member 121 relative to the carrier base 110 can also be greater than 90°, for example: 100°, 110°, 120°, 130°, 140°, 150°, etc. The rotation angle of the rotating member 121 relative to the carrier base 110 can also be less than 90°, for example: 80°, 70°, 60°, 50°, etc.

[0098] Please refer to Figure 2 and Figure 4 , in some embodiments, the carrier base 110 includes a carrier member 111, a support member 112 and a mounting member 113. The support member 112 is arranged on the periphery of the carrier member 111 and is rotatably connected to the rotating member 121. The mounting member 113 is arranged on the periphery of the carrier member 111 and is used for detachably connecting with the positioning carrier 130. Among them, the support member 112, the mounting member 113 and the carrier member 111 enclose an activity space 110a for accommodating the positioning carrier 130.

[0099] Therefore, through the above settings, the carrier base 110 has an open activity space 110a, which can reduce the difficulty of installing the positioning carrier 130 to the carrier base 110.

[0100] Please refer to Figure 4 , in some embodiments, the positioning carrier 130 is a metal member. The mounting member 113 includes a mounting plate 1131, a magnetic body 1132 and a plurality of positioning pins 1133. The mounting plate 1131 is connected to the periphery of the carrier member 111. A plurality of positioning pins 1133 are all connected to the side of the mounting plate 1131 facing the activity space 110a. The plurality of positioning pins 1133 are arranged at intervals along the circumference of the mounting plate 1131 and are used for positioning the positioning carrier 130. The magnetic body 1132 is embedded in the mounting plate 1131 and is used for adsorbing the positioning carrier 130.

[0101] Therefore, through the above settings, the difficulty of installing the positioning carrier 130 to the carrier base 110 can be simplified, which is beneficial to improving the installation efficiency of the positioning carrier 130 and the carrier base 110.

[0102] In this embodiment, there are four positioning pins 1133 and two magnetic bodies 1132. In other embodiments, the number of positioning pins 1133 can also be three, five or more, and the number of magnetic bodies 1132 can also be three or more.

[0103] Please refer to Figure 2 and Figure 5 , in some embodiments, the positioning carrier 130 includes a positioning plate 131, a retaining pin 132 and a cover plate 133. The positioning plate 131 is provided with a positioning groove 131a for accommodating the workpiece 200. The positioning plate 131 is detachably connected to the bearing seat 110. The retaining pin 132 is arranged on the positioning plate 131 and on the peripheral side of the positioning groove 131a. The cover plate 133 is rotatably connected to the positioning plate 131 to be clamped on the retaining pin 132 and cover the positioning groove 131a.

[0104] Therefore, through the above settings, the manufacturing difficulty of the positioning carrier 130 can be simplified, which is beneficial to reducing the manufacturing cost of the positioning carrier 130.

[0105] In this embodiment, there are two retaining pins 132. The two retaining pins 132 are located on the opposite sides of the positioning groove 131a. The positioning groove 131a is adapted to the shape of the workpiece 200. In other embodiments, the number of retaining pins 132 can also be three or more.

[0106] Please refer to Figure 2 and Figure 3 , in some embodiments, the support member 112 of the bearing seat 110 is provided with a rotation groove 112a. The rotating member 121 includes a rotating body 1211, a movable pin 1212 and an assembly body 1213. The rotating body 1211 is movably accommodated in the rotation groove 113a. The movable pin 1212 passes through the rotating body 1211 and the side wall of the rotation groove 113a to enable the rotating body 1211 to rotate relative to the bearing seat 110. The assembly body 1213 is connected to the rotating body 1211 and is rotatably connected to the limiting member 123. The guiding member 122 is arranged on the assembly body 1213. The pushing member 124 movably passes through the rotating body 1211 and the assembly body 1213.

[0107] Therefore, through the above settings, the manufacturing difficulty of the assembly component 120 can be simplified, which is beneficial to reducing the manufacturing cost of the assembly component 120.

[0108] Please refer to Figure 6, in some embodiments, the assembly 1213 is provided with a guiding hole 1213a, the pushing member 124 is provided with a pushing groove 124a and a moving hole 124b, the pushing member 124 is inserted into the guiding hole 1213a, the moving hole 124b penetrates through the side wall of the pushing groove 124a and communicates with the guiding hole 1213a, and the moving hole 124b is arranged along the moving direction of the pushing member 124. The guiding member 122 includes a guiding body 1221 and an abutting pin 1222. Part of the guiding body 1221 is received in the guiding hole 1213a and extends into the pushing groove 124a. The abutting pin 1222 passes through the guiding body 1221 and the moving hole 124b and abuts against the side wall of the guiding hole 1213a. In this embodiment, the guiding body 1221 is generally columnar.

[0109] Therefore, through the above arrangement, the rotating member 121, the pushing member 124 and the guiding member 122 form a structure that is sleeved with each other, which can reduce the occupied space of the assembly component 120 and facilitate the miniaturization of the assembly component 120.

[0110] In some embodiments, the rotating body 1211 is provided with a sliding hole 1211a and a limiting hole 1211b. The sliding hole 1211a penetrates through the rotating body 1211 along the moving direction of the pushing member 124. The limiting hole 1211b penetrates through the side wall of the sliding hole 1211a. The pushing member 124 includes a pushing body 1241 and a stop pin 1242. The pushing body 1241 is movably inserted into the sliding hole 1211a and the guiding hole 1213a. The pushing groove 124a and the moving hole 124b are respectively provided on the pushing body 1241. The stop pin 1242 is inserted into the pushing body 1241 along the direction perpendicular to the moving direction of the pushing member 124 and extends into the limiting hole 1211b.

[0111] Therefore, the limiting hole 1211b can form a stop for the stop pin 1242 in the moving direction of the pushing body 1241, thereby limiting the moving range of the pushing body 1241.

[0112] In this embodiment, there are two limiting holes 1211b, and the two limiting holes 1211b are respectively arranged on opposite sides of the sliding hole 1211a.

[0113] Please refer to Figure 3 and Figure 6 , in some embodiments, the limiting member 123 includes a limiting body 1231 and a limiting pin 1232. The limiting body 1231 is movably arranged on the rotating body 1211. The limiting pin 1232 is inserted into the limiting body 1231 and the assembly 1213 along the moving direction of the pushing member 124, so that the limiting body 1231 rotates relative to the assembly 1213.

[0114] Therefore, through the above arrangement, the installation difficulty of the limiting member 123 and the assembly 1213 can be reduced, which is beneficial to improving the assembly efficiency of the assembly component 120.

[0115] In some embodiments, the assembly 1213 is further provided with a clamping groove 1213b. The limiting body 1231 includes a main body portion 1231a, a limiting portion 1231b, and a clamping portion 1231c. The main body portion 1231a is movably disposed on the rotating body 1211. The limiting portion 1231b is connected to the main body portion 1231a. The limiting pin 1232 is movably inserted into the limiting portion 1231b. The clamping portion 1231c is connected to the limiting portion 1231b and is located on the same side of the main body portion 1231a as the limiting portion 1231b. The clamping portion 1231c is used for clamping into the clamping groove 1213b to fix the limiting body 1231. In this embodiment, the limiting body 1231 is of an integral structure.

[0116] Therefore, through the above arrangement, the limiting member 123 and the assembly 1213 can form an embedded structure, which is beneficial to the miniaturization of the assembly component 120.

[0117] Please refer to Figure 6 , in some embodiments, a chamfer 1231d is provided at one end of the clamping portion 1231c away from the main body portion 1231a.

[0118] Therefore, the chamfer 1231d can guide the clamping portion 1231c into the clamping groove 1213b, improving the assembly efficiency of the limiting body 1231 and the assembly 1213.

[0119] In the above assembly mechanism 100, the positioning carrier 130 positions the workpiece 200. When the positioning carrier 130 with the workpiece 200 is installed on the bearing seat 110, the rotating member 121 drives the torsion spring 300 to rotate to correspond to the mounting post 200b. The pushing member 124 pushes the torsion spring 300 away from the guiding member 122 so that the torsion spring 300 is sleeved on the mounting post 200b, thereby realizing the assembly of the torsion spring 300 and the workpiece 200. Therefore, the operation of the above assembly mechanism 100 is simple, with low labor intensity, improving the assembly efficiency of the torsion spring 300. In addition, the structure of the above assembly mechanism 100 is simple and easy to manufacture, reducing the assembly cost of the torsion spring 300.

[0120] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to cover all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An assembly mechanism for installing a torsion spring onto an installation post of a workpiece, the torsion spring including a spiral body and a first torsion arm and a second torsion arm connected to the spiral body, characterized in that, The assembly mechanism includes: A carrier base; An assembly component, including a rotating member, a guiding member, a limiting member and a pushing member. The rotating member is rotatably connected to the carrier base. The guiding member is disposed on the rotating member. The torsion spring is used to be sleeved on the guiding member. The limiting member is rotatably connected to the rotating member, and the rotation axis of the limiting member is perpendicular to the rotation axis of the rotating member. The limiting member is used to abut the first torsion arm and the second torsion arm against the rotating member. The pushing member movably penetrates through the rotating member along a direction parallel to the rotation axis of the limiting member and is used to push the torsion spring away from the guiding member; A positioning carrier for positioning the workpiece and detachably connecting to the carrier base; wherein, When the positioning carrier with the workpiece is installed on the carrier base, the torsion spring is driven by the rotating member to rotate to correspond to the mounting post, so as to push the torsion spring away from the guiding member by the pushing member and sleeve the torsion spring onto the mounting post.

2. The assembly mechanism according to claim 1, characterized in that, The carrier base is provided with a rotating groove, and the rotating member includes: A rotating body movably received in the rotating groove; A movable pin penetrating through the rotating body and the side wall of the rotating groove to enable the rotating body to rotate relative to the carrier base; An assembly body connecting the rotating body and rotatably connected to the limiting member. The guiding member is disposed on the assembly body, and the pushing member movably penetrates through the rotating body and the assembly body.

3. The assembly mechanism according to claim 2, characterized in that The assembly body is provided with a guiding hole. The pushing member is provided with a pushing groove and a movable hole. The pushing member is inserted into the guiding hole. The movable hole penetrates through the side wall of the pushing groove and communicates with the guiding hole, and the movable hole is arranged along the moving direction of the pushing member. The guiding member includes a guiding body and an abutting pin. Part of the guiding body is received in the guiding hole and extends to the pushing groove. The abutting pin penetrates through the guiding body and the movable hole and abuts against the side wall of the guiding hole.

4. The assembly mechanism according to claim 3, characterized in that, The rotating body is provided with a sliding hole and a limiting hole. The sliding hole penetrates through the rotating body along the moving direction of the pushing member. The limiting hole penetrates through the side wall of the sliding hole. The pushing member includes a pushing body and a stop pin. The pushing body is movably inserted into the sliding hole and the guiding hole. The pushing groove and the movable hole are respectively opened on the pushing body. The stop pin is inserted into the pushing body along a direction perpendicular to the moving direction of the pushing member and extends to the limiting hole.

5. The assembly mechanism according to claim 2, characterized in that, The limiting member includes: A limiting body movably disposed on the rotating body; A limiting pin inserted into the limiting body and the assembly body along the moving direction of the pushing member to enable the limiting body to rotate relative to the assembly body.

6. The assembly mechanism according to claim 5, wherein The assembly body is further provided with a clamping groove, and the limiting body includes: A main body portion movably disposed on the rotating body; A limiting portion connecting the main body portion, and the limiting pin is movably inserted into the limiting portion; A clamping portion connecting the limiting portion and located on the same side of the main body portion as the limiting portion. The clamping portion is used to be clamped into the clamping groove to fix the limiting body.

7. The assembly mechanism according to claim 6, characterized in that, One end of the clamping portion away from the main body portion is provided with a chamfer.

8. The assembly mechanism according to claim 1, characterized in that The carrier base includes: A carrier member; A supporting member disposed on the periphery of the carrier member and rotatably connected to the rotating member; The mounting member is provided at the periphery of the carrier and is used for detachably connecting with the positioning carrier; wherein, The support member, the mounting member and the carrier enclose an activity space for accommodating the positioning carrier.

9. The assembly mechanism according to claim 8, wherein, The positioning carrier is a metal component, and the mounting member includes: A mounting plate connected to the periphery of the carrier; A plurality of positioning pins, all connected to the side of the mounting plate facing the activity space, and the plurality of positioning pins are arranged at intervals along the circumferential direction of the mounting plate for positioning the positioning carrier; A magnetic body embedded in the mounting plate for adsorbing the positioning carrier.

10. The assembly mechanism according to claim 1, characterized in that, The positioning carrier includes: A positioning plate provided with a positioning groove for accommodating the workpiece, and the positioning plate is detachably connected to the carrier seat; A retaining pin provided on the positioning plate and located on the periphery of the positioning groove; A cover plate rotatably connected to the positioning plate to be clamped on the retaining pin and cover the positioning groove.

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