Assembly mechanism

Abstract

The utility model relates to the technical field of workpiece mounting equipment, and particularly discloses an assembling mechanism which is used for assembling a small part with an internal thread and an external thread on a workpiece. The assembling mechanism comprises a holding assembly, an assembling part and an abutting assembly, the holding assembly is provided with a containing cavity and a through hole communicating with the containing cavity, one end of the assembling part is inserted into the containing cavity, and the other end of the assembling part penetrates through the through hole, extends out of the holding assembly and is provided with an assembling thread matched with the internal thread of the small part; the abutting assembly comprises a first elastic piece and an abutting sleeve, and the first elastic piece is used for applying elastic force to the abutting sleeve so that the abutting sleeve can abut against the small part. According to the assembling mechanism provided by the embodiment of the invention, the abutting assembly abuts against the small part all the time, and when the small part is reversely rotated and withdrawn from the assembling part, the small part cannot reversely rotate along with the assembling part under the abutting of the abutting assembly, so that the small part cannot be withdrawn from the workpiece due to reverse rotation, assembling of the small part relative to the workpiece is completed, and the assembling efficiency of the small part is improved.

Description

Technical Field

[0001] The present application relates to the technical field of workpiece mounting equipment, and in particular to an assembly mechanism. Background Art

[0002] When a low-hardness workpiece is connected to other components by screws, and the screws need to be disassembled and assembled from aluminum and other components multiple times according to usage requirements, the threads of the low-hardness workpiece are easily damaged during the multiple disassembly and assembly process due to the low hardness of the low-hardness workpiece, which in turn leads to a short service life of the low-hardness workpiece. In order to protect the low-hardness workpiece, the conventional method is to assemble hard small parts with internal and external threads on the threaded part of the low-hardness workpiece. When disassembling and assembling the screws, the screws and the hard small parts cooperate to avoid the threads of the low-hardness workpiece from being damaged. Among them, the small parts with internal and external threads refer to inner and outer nuts.

[0003] At present, the small part is assembled on the threaded part of the low-hardness workpiece by using a working screw, and then the working screw is rotated in the opposite direction to withdraw the small part. However, when the working screw is withdrawn from the small part, the small part is likely to rotate with the working screw, causing the small part to withdraw or partially withdraw from the thread of the low-hardness workpiece, so that the small part needs to be assembled on the threaded part of the low-hardness workpiece again by using the working screw, which leads to low assembly efficiency of the small part. Utility Model Content

[0004] In view of the above, it is necessary to propose an assembly mechanism to prevent the small parts from withdrawing from the workpiece following the rotation of the assembly mechanism when the assembly mechanism withdraws from the workpiece relative to the small parts, thereby improving the assembly efficiency of the small parts.

[0005] The embodiment of the present application provides an assembly mechanism for assembling a small part having an internal thread and an external thread on a workpiece, comprising:

[0006] A grip assembly having a receiving cavity and a through hole communicating with the receiving cavity;

[0007] An assembly part, one end of which is inserted into the accommodating cavity, and the other end of which passes through the through hole to extend out of the gripping assembly, and the other end of which extends out of the gripping assembly has an assembly thread that matches the internal thread of the small part;

[0008] A supporting assembly includes a first elastic member and a supporting sleeve, wherein the supporting sleeve is slidably mounted on the assembly member, one end of the supporting sleeve is inserted into the accommodating cavity, and the other end of the supporting sleeve passes through the through hole to extend out of the holding assembly, the first elastic member is located in the accommodating cavity, one end of the first elastic member is abutted against the assembly member, and the other end of the first elastic member is abutted against the supporting sleeve, and the first elastic member is used to apply elastic force to the supporting sleeve so that the supporting sleeve abuts against the small member.

[0009] In some embodiments, the holding assembly includes a connected holding piece and an end cover, both of which are hollow structures, and the holding piece and the end cover enclose the accommodating cavity, and the through hole is opened at one end of the end cover away from the holding piece; the other end of the assembly passes through the through hole to extend out of the end cover, and the other end of the supporting sleeve passes through the through hole to extend out of the end cover.

[0010] In some embodiments, the gripping member and the end cap are detachably connected.

[0011] In some embodiments, the assembly mechanism further includes a limiting member, and the limiting member is respectively connected to the holding component and the assembly component, so that the holding component drives the assembly component to rotate through the limiting member.

[0012] In some embodiments, the limiting member is connected to the holding assembly, and a portion of the structure of the limiting member extends into the accommodating cavity and is connected to the assembly member.

[0013] In some embodiments, the holding assembly is further symmetrically provided with two through holes both connected to the accommodating cavity, one end of the limiting member is located in one of the through holes, and the other end of the limiting member extends into the accommodating cavity and passes through the assembly part to extend into the other through hole.

[0014] In some embodiments, the assembly part is provided with a through hole, the through hole extending along the axial direction of the assembly part, the other end of the stopper passes through the through hole to extend into the other through hole, and the assembly part can move relative to the stopper along the axial direction of the assembly part through the through hole;

[0015] The assembly mechanism also includes a second elastic member, which is located in the accommodating cavity, one end of the second elastic member abuts against one end of the assembly part inserted into the accommodating cavity, and the other end of the second elastic member abuts against an inner wall of the accommodating cavity opposite to the assembly part, and the second elastic member is used to apply an elastic force to the assembly part toward the abutting sleeve, and the elastic force applied by the second elastic member to the assembly part is greater than the elastic force applied by the first elastic member to the assembly part.

[0016] In some embodiments, one end of the supporting sleeve located in the accommodating cavity has an extension portion, and the cross-sectional area of ​​the extension portion along the axis perpendicular to the holding component is larger than the cross-sectional area of ​​the through hole along the axis perpendicular to the holding component.

[0017] In some embodiments, the assembly comprises a connected working section and a limiting section, the outer diameter of the limiting section is larger than the outer diameter of the working section, one end of the working section connected to the limiting section and the limiting section are both located in the accommodating cavity, one end of the working section away from the limiting section passes through the through hole and extends out of the holding assembly, and the assembly thread is arranged at the end of the working section away from the limiting section; the supporting sleeve and the first elastic member are both sleeved on the working section, and one end of the first elastic member abuts against one end of the limiting section connected to the working section, and the other end of the first elastic member abuts against the supporting sleeve, and the first elastic member is used to apply an elastic force to the supporting sleeve away from the limiting section.

[0018] In some embodiments, anti-slip grooves are provided on the outer peripheral side of the gripping component.

[0019] When the above-mentioned assembly mechanism is in use, when it is necessary to assemble a small part with internal and external threads on the threaded part of a workpiece, such as aluminum, the small part is first screwed onto the assembly thread of the assembly part, and then the holding component is rotated. The holding component drives the assembly part and the small part to rotate synchronously, thereby screwing the small part into the threaded part of the workpiece, so that the small part is threadedly connected to the workpiece; then the holding component is rotated in the opposite direction to make the assembly part withdraw from the small part. When the assembly part reverses and withdraws from the small part, the first elastic part applies an elastic force to the supporting sleeve, so that the supporting sleeve can support the small part under the elastic force of the first elastic part, so that the small part will not rotate with the assembly part under the support of the supporting sleeve, and then the small part is connected to the workpiece in a threaded manner, thereby realizing the threaded connection between the small part and the workpiece.

[0020] The assembly mechanism provided in the embodiment of the present application always holds the small part by the holding component, so that when the assembly part is reversed and withdrawn from the small part, the small part will not reverse and withdraw from the workpiece along with the assembly part, so that the small part and the workpiece are maintained in an assembled state, thereby realizing the assembly of the small part and the workpiece, which is beneficial to improving the assembly efficiency of the small part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the coordination between the assembly mechanism and the small parts provided in the embodiment of the present application.

[0022] Figure 2 yes Figure 1 The schematic diagram of the assembly mechanism shown is a state where a small part is assembled onto a workpiece.

[0023] Figure 3 yes Figure 1 The sectional view of the assembly mechanism and small parts along the III-III direction is shown.

[0024] Figure 4 yes Figure 1 Schematic diagram of the assembly mechanism and small parts shown.

[0025] Main component symbols

[0026] Assembly mechanism 100

[0027] Grip assembly 10

[0028] Grip 11

[0029] Through hole 111

[0030] Anti-slip pattern 112

[0031] End cap 12

[0032] Through hole 121

[0033] Accommodating chamber 13

[0034] Assembly parts 20

[0035] Working section 21

[0036] Assembly thread 211

[0037] Limit section 22

[0038] Through hole 221

[0039] Abutment component 30

[0040] The first elastic member 31

[0041] Retaining sleeve 32

[0042] Extension 321

[0043] Limiting piece 40

[0044] The second elastic member 50

[0045] Small items 200

[0046] Workpiece 300 DETAILED DESCRIPTION

[0047] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0048] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0049] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, 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 mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0051] Please refer to Figure 1 and Figure 2 The embodiment of the present application provides an assembly mechanism 100, which is used to thread a small piece 200 having internal and external threads onto a workpiece 300, and when the assembly mechanism 100 withdraws relative to the small piece 200, the small piece 200 does not rotate with the assembly mechanism 100 and withdraw from the workpiece 300, so that the small piece 200 maintains a threaded connection state with the workpiece 300. In this embodiment, the small piece 200 can be an internal and external nut, and the workpiece 300 can be an aluminum workpiece. It is understandable that the workpiece 300 can also be a workpiece of other low-hardness materials.

[0052] Please refer to Figure 1 , Figure 3 and Figure 4 The assembly mechanism 100 includes a holding component 10 , an assembly component 20 and a resisting component 30 .

[0053] The gripping assembly 10 has a receiving cavity 13 and is provided with a through hole 121 communicating with the receiving cavity 13 .

[0054] One end of the assembly part 20 is inserted into the accommodating cavity 13, and the other end of the assembly part 20 passes through the through hole 121 to extend out of the gripping assembly 10, and the other end extending out of the gripping assembly 10 has an assembly thread 211 that matches the internal thread of the small piece 200. In actual use, the assembly thread 211 is threadedly connected with the internal thread of the small piece 200, so that the small piece 200 is driven to rotate through the assembly part 20 to screw the small piece 200 into the workpiece 300. It can be understood that the workpiece 300 is provided with an internal thread that matches the external thread of the small piece 200.

[0055] The abutting assembly 30 includes a first elastic member 31 and an abutting sleeve 32. The abutting sleeve 32 is slidably sleeved outside the assembly 20 so that the abutting sleeve 32 can slide on the assembly 20. One end of the abutting sleeve 32 is inserted into the accommodating cavity 13, and the other end of the abutting sleeve 32 passes through the through hole 121 to extend out of the gripping assembly 10. The first elastic member 31 is located in the accommodating cavity 13. One end of the first elastic member 31 abuts the assembly 20, and the other end of the first elastic member 31 abuts the abutting sleeve 32. The first elastic member 31 is used to apply elastic force to the abutting sleeve 32 so that the abutting sleeve 32 abuts the small component 200 under the elastic force of the first elastic member 31. Through the cooperation of the first elastic member 31 and the abutting sleeve 32, when the assembly 20 withdraws from the small component 200, the abutting sleeve 32 abuts the small component 200 under the elastic force of the first elastic member 31, thereby preventing the small component 200 from withdrawing from the workpiece 300 as the assembly 20 rotates. The first elastic member 31 may be a spring.

[0056] When the assembly mechanism 100 provided in the embodiment of the present application is used, when it is necessary to thread the small piece 200 into the threaded portion of the workpiece 300, the small piece 200 is first screwed onto the assembly thread 211 of the assembly part 20, and then the holding component 10 is rotated to drive the assembly part 20 and the small piece 200 to rotate, thereby screwing the small piece 200 into the threaded portion of the workpiece 300, so that the small piece 200 is threadedly connected to the workpiece 300; then the holding component 10 is rotated in the opposite direction to make the small piece 200 be screwed into the threaded portion of the workpiece 300; The assembly part 20 is withdrawn from the small part 200. When the assembly part 20 is reversed and withdrawn from the small part 200, the first elastic part 31 applies elastic force to the abutting sleeve 32, so that the abutting sleeve 32 can abut the small part 200 under the elastic force of the first elastic part 31, so that the small part 200 will not rotate with the assembly part 20 under the abutment of the abutting sleeve 32, and then the small part 200 is connected in the workpiece 300 in a threaded connection manner, so that the threaded connection between the small part 200 and the workpiece 300 is achieved. The abutting sleeve 32 always abuts the small part 200, so that when the assembly part 20 is reversed and withdrawn from the small part 200, the small part 200 will not reverse and withdraw from the small part 200 with the assembly part 20, so that the assembly of the small part 200 relative to the workpiece 300 can be completed at one time, avoiding repeated operations, which is conducive to improving the assembly efficiency of the small part 200.

[0057] It is understandable that the small piece 200 can be made of a hard material such as stainless steel. When assembling the small piece 200, a colloid such as structural glue can be applied between the small piece 200 and the workpiece 300 to fix the small piece 200 relative to the workpiece 300. It is understandable that before the small piece 200 is screwed onto the threaded portion of the workpiece 300, a colloid such as structural glue can also be applied to the external thread of the small piece 200, and then the small piece 200 is screwed onto the threaded portion of the workpiece 300 through the assembly mechanism 100, and the colloid such as structural glue solidifies, and then the small piece 200 can be bonded to the workpiece 300.

[0058] Please refer to Figure 1 , Figure 3 and Figure 4 In this embodiment, the gripping assembly 10 includes a gripping member 11 and an end cap 12 connected to each other. The gripping member 11 and the end cap 12 are both hollow structures. The gripping member 11 and the end cap 12 enclose a receiving cavity 13. A through hole 121 is provided at one end of the end cap 12 away from the gripping member 11. One end of the assembly part 20 is inserted into the receiving cavity 13, and the other end of the assembly part 20 passes through the through hole 121 to extend out of the end cap 12. One end of the abutment sleeve 32 is inserted into the receiving cavity 13, and the other end of the abutment sleeve 32 passes through the through hole 121 to extend out of the end cap 12. In actual use, such as manual operation, a person holds the gripping member 11 by hand, and then rotates the gripping member 11 to drive the assembly part 20 to rotate, thereby screwing the small part 200 into the workpiece 300. In this way, by setting the specific structure of the gripping assembly 10, it is convenient for the user to drive the assembly part 20 to rotate through the gripping member 11, making the operation more convenient. Among them, the holding component 10 can be a hollow cylindrical shape, the holding piece 11 and the end cover 12 can both be hollow cylindrical shapes with one end open, and the open end of the holding piece 11 is assembled on the open end of the end cover 12 to obtain the holding component 10.

[0059] It is understandable that in other embodiments, such as automated operations, the holding member 11 may be rotated by an operating mechanism such as a robot arm to drive the assembly member 20 and the small member 200 to rotate, thereby screwing the small member 200 into the workpiece 300 .

[0060] In this embodiment, the gripping member 11 and the end cap 12 can be detachably connected, specifically, the gripping member 11 and the end cap 12 are threadedly connected. In this way, by limiting the gripping member 11 and the end cap 12 to be detachably connected, it is convenient to install the assembly member 20 and the abutting assembly 30 and other components. After the assembly member 20 and the abutting assembly 30 and other components are installed, the gripping member 11 and the end cap 12 are connected together, which is conducive to improving the assembly efficiency of the assembly mechanism 100. It can be understood that in other embodiments, the gripping member 11 and the end cap 12 can also be connected by a snap connection or other detachable connection methods.

[0061] It is understandable that when assembling the grip 11 and the end cap 12, a colloid such as structural glue can also be applied between the grip 11 and the end cap 12 to fix the grip 11 and the end cap 12. Specifically, after the assembly 20 and the abutment assembly 30 and other components are installed, a colloid such as structural glue is applied to the threaded portion of the grip 11 and / or the end cap 12, and then the grip 11 and the end cap 12 are threadedly connected together, and the colloid such as structural glue solidifies, so that the grip 11 and the end cap 12 can be bonded together.

[0062] In this embodiment, the outer circumference of the grip 11 is provided with anti-skid patterns 112, which may be regular patterns or irregular patterns provided on the outer circumference of the grip 11. Thus, by providing the anti-skid patterns 112 on the outer circumference of the grip 11, the user is prevented from slipping when turning the grip 11, which is beneficial to improving the stability of the grip 11.

[0063] In this embodiment, the end of the end cap 12 away from the grip 11 is chamfered or rounded. Thus, by providing the end cap 12 with a chamfer or rounded corner, it is possible to prevent the corners of the end cap 12 from scratching the user, thereby improving the safety of use.

[0064] In this embodiment, one end of the gripping member 11 away from the end cover 12 is chamfered or rounded. Thus, by setting the gripping member 11 with a chamfered or rounded corner, it is possible to prevent the edges of the gripping member 11 from scratching the user, thereby improving the safety of use.

[0065] In this embodiment, please refer to Figure 3 and Figure 4 The assembly part 20 includes a connected working section 21 and a limiting section 22. The end of the working section 21 connected to the limiting section 22 and the limiting section 22 are both located in the accommodating cavity 13. The end of the working section 21 away from the limiting section 22 passes through the through hole 121 and extends out of the end cover 12 of the grip assembly 10. The assembly thread 211 is provided at the end of the working section 21 away from the limiting section 22. In this embodiment, the end of the working section 21 away from the limiting section 22 passes through the through hole 121 and extends out of the end cover 12.

[0066] The outer diameter of the limiting section 22 is larger than the outer diameter of the working section 21. The abutting sleeve 32 and the first elastic member 31 are both sleeved outside the working section 21. One end of the first elastic member 31 abuts against one end of the limiting section 22 connected to the working section 21, and the other end of the first elastic member 31 abuts against the abutting sleeve 32. The first elastic member 31 is used to apply an elastic force to the abutting sleeve 32 away from the limiting section 22. Specifically, in the process of withdrawing the assembly 20 from the small part 200, the first elastic member 31 will stretch, so that the first elastic member 31 drives the abutting sleeve 32 to always abut against the small part 200. In the initial state, the first elastic member 31 is in a compressed state, so that the first elastic member 31 always applies an elastic force to the abutting sleeve 32 away from the limiting section 22. In addition, the abutting sleeve 32 and the first elastic member 31 are both sleeved outside the working section 21, so that the working section 21 also guides the abutting sleeve 32 and the first elastic member 31.

[0067] In this embodiment, the length of the assembly thread 211 can be less than the length of the internal thread of the small part 200. In this way, by limiting the length of the assembly thread 211 relative to the internal thread of the small part 200, the assembly thread 211 of the assembly part 20 can be completely screwed into the small part 200, avoiding the assembly thread 211 being too long, and when the assembly part 20 abuts against the threaded portion of the workpiece 300, the small part 200 has not yet started to be threadedly connected with the threaded portion of the workpiece 300, which may cause the small part 200 to be unable to be completely threadedly connected in the workpiece 300, or cause the assembly part 20 to damage the threaded portion of the workpiece 300.

[0068] In this embodiment, the assembly mechanism 100 further includes a stopper 40, which is connected to the gripping assembly 10 and the assembly part 20 respectively, so that the gripping assembly 10 drives the assembly part 20 to rotate through the stopper 40, and the stopper 40 is used to limit the angle of the assembly part 20 relative to the gripping assembly 10, so that the assembly part 20 does not rotate relative to the gripping assembly 10. In this way, through the setting of the stopper 40, when the gripping assembly 10 is rotated, the assembly part 20 can be driven to rotate together through the stopper 40, so that the small part 200 can be screwed into the workpiece 300 through the assembly part 20. It is avoided that the gripping assembly 10 rotates relative to the assembly part 20, and the assembly part 20 does not rotate with the gripping assembly 10. If the assembly part 20 does not rotate, the small part 200 cannot be screwed into the workpiece 300.

[0069] In this embodiment, the stopper 40 is connected to the grip assembly 10 and a part of the stopper 40 extends into the accommodating cavity 13 and is connected to the assembly part 20 to limit the angle of the assembly part 20 relative to the grip assembly 10. In this way, by extending the stopper 40 connected to the grip assembly 10 into the accommodating cavity 13 and connecting to the assembly part 20, when the grip assembly 10 is rotated, the grip assembly 10 can drive the assembly part 20 to rotate through the stopper 40. The stopper 40 can be, but is not limited to, a stopper column.

[0070] In this embodiment, the gripping assembly 10 is also symmetrically provided with two through holes 111 both connected to the accommodating cavity 13. One end of the stopper 40 is located in one of the through holes 111, and the other end of the stopper 40 extends into the accommodating cavity 13 and passes through the assembly 20 and extends into the other through hole 111. The aperture of the through hole 111 is adapted to the outer diameter of the stopper 40. Thus, by extending the two ends of the stopper 40 into the two through holes 111 of the assembly 20 and passing the stopper 40 through the assembly 20, the rotation of the gripping assembly 10 can drive the stopper 40 to rotate synchronously, and further drive the assembly 20 to rotate synchronously. In this embodiment, the two through holes 111 are symmetrically provided on the gripping member 11.

[0071] In this embodiment, the axial direction of the through hole 111 is perpendicular to the axial direction of the grip assembly 10. Specifically, two through holes 111 are symmetrically provided on the side wall of the grip member 11. Thus, when the grip member 10 is rotated around the axial direction of the grip member 10, the stopper 40 can be driven to rotate around the axial direction of the grip member 10 synchronously.

[0072] See also Figure 3 and Figure 4The assembly part 20 is provided with a through hole 221, which extends along the axial direction of the assembly part 20. The other end of the stopper 40 passes through the through hole 221 to extend into another through hole 111, and the assembly part 20 can move relative to the stopper 40 along the axial direction of the assembly part 20. The assembly mechanism 100 also includes a second elastic member 50, which is located in the accommodating cavity 13, one end of the second elastic member 50 abuts against one end of the assembly part 20 inserted into the accommodating cavity 13, and the other end of the second elastic member 50 abuts against the inner wall of the accommodating cavity 13 opposite to the assembly part 20. The second elastic member 50 is used to apply an elastic force toward the abutting sleeve 32 to the assembly part 20, and the elastic force applied by the second elastic member 50 to the limit section 22 is greater than the elastic force applied by the first elastic member 31 to the limit section 22. In this embodiment, one end of the first elastic member 31 abuts against one end of the limit section 22 connected to the working section 21, and one end of the second elastic member 50 abuts against one end of the limit section 22 away from the working section 21. The second elastic member 50 may be a spring. Thus, by providing the through hole 221 and the second elastic member 50, when the user applies force on the assembly mechanism 100 to assemble the small piece 200 on the workpiece 300 through the assembly mechanism 100, the second elastic member 50 transmits the force to the limiting section 22, and the limiting section 22 transmits the force to the first elastic member 31, and the first elastic member 31 applies the force to the small piece 200 through the abutting sleeve 32, thereby preventing the user from applying too much force, which may cause the small piece 200 to damage the threaded portion of the workpiece 300 with a relatively soft hardness, such as aluminum. If there is no through hole 221 and the second elastic member 50, the force applied by the user on the assembly mechanism 100 will be directly transmitted to the small piece 200 through the first elastic member 31 and the abutting sleeve 32, so that when the user applies too much force, the threaded portion of the workpiece 300 with a relatively soft hardness, such as aluminum, may be damaged by the small piece 200.

[0073] Specifically, when the user applies a force on the gripping assembly 10 so that the abutting sleeve 32 abuts against the small piece 200, the abutting sleeve 32 will move toward the direction close to the limiting section 22 under the force applied by the user, so that the first elastic member 31 is compressed, thereby increasing the elastic force applied by the first elastic member 31 to the limiting section 22, so that the assembly 20 moves along its own axis toward the direction close to the second elastic member 50, so that the second elastic member 50 is also compressed. In this process, after the first elastic member 31 is compressed, since the assembly 20 is movable relative to the gripping assembly 10, the first elastic member 31 will stretch to apply a greater elastic force to the limiting section 22. After the first elastic member 31 is stretched, the elastic force applied by the first elastic member 31 to the abutting sleeve 32 is less than the pressure applied by the user on the gripping assembly 10, thereby preventing the user from applying too much force and causing the small piece 200 to damage the threaded portion of the workpiece 300.

[0074] It can be understood that in other embodiments, the stopper 40 can also be a convex strip provided on the inner wall of the gripping member 11, the convex strip extends along the axial direction of the gripping assembly 10, and accordingly, a groove is provided on the outer wall of the assembly member 20, the groove extends along the axial direction of the gripping assembly 10, and the convex strip fits in the groove, so that the assembly member 20 can not only slide relative to the gripping member 11 along the axial direction of the gripping assembly 10, but also rotate with the gripping member 11. Or conversely, the stopper 40 can also be a convex strip provided on the outer wall of the assembly member 20, the convex strip extends along the axial direction of the gripping assembly 10, and accordingly, a groove is provided on the inner wall of the gripping member 11, the groove extends along the axial direction of the gripping assembly 10, and the convex strip fits in the groove.

[0075] It can be understood that in other embodiments, the limiting member 40 can also be a rod-shaped structure, and the limiting member 40 is fixedly connected to the holding member 11 and the assembly member 20 respectively, so that the assembly member 20 can rotate with the holding member 11.

[0076] It can be understood that in other embodiments, the holding member 11 can also be interference fit with the assembly member 20, so that the assembly member 20 can rotate with the holding member 11, and the limiting member 40 can also be omitted.

[0077] See also Figure 3 The end of the abutting sleeve 32 located in the accommodating cavity 13 has an extension portion 321, and the cross-sectional area of ​​the extension portion 321 along the axial direction perpendicular to the gripping assembly 10 is larger than the cross-sectional area of ​​the through hole 121 along the axial direction perpendicular to the gripping assembly 10, so that the extension portion 321 of the abutting sleeve 32 cannot extend out of the gripping assembly 10 through the through hole 121. In this embodiment, the extension portion 321 may be annular, the through hole 121 may be a circular hole, and the outer diameter of the extension portion 321 is larger than the aperture of the through hole 121.

[0078] The operation process of the above-mentioned assembly mechanism 100 is roughly as follows:

[0079] The small part 200 is screwed onto the assembly thread 211 of the assembly part 20, and then the holding part 11 is rotated. The holding part 11 drives the assembly part 20 and the small part 200 to rotate through the limit part 40, so that the small part 200 is screwed into the threaded part of the workpiece 300, so that the small part 200 is threadedly connected to the workpiece 300; then the holding part 11 is rotated in the opposite direction, and the holding part 11 drives the assembly part 20 to rotate relative to the small part 200 through the limit part 40, so that the assembly part 20 is withdrawn from the small part 200. When the assembly part 20 is reversed and withdrawn from the small part 200, the supporting sleeve 32 supports the small part 200 under the elastic force applied by the first elastic part 31, so that the small part 200 will not rotate with the assembly part 20 under the support of the supporting sleeve 32, and then the small part 200 is connected to the workpiece 300 in a threaded connection manner, thereby realizing the threaded connection between the small part 200 and the workpiece 300.

[0080] Among them, due to the setting of the through hole 221 and the second elastic member 50, when the user applies a force on the gripping member 11 to assemble the small member 200 on the workpiece 300, the second elastic member 50 transmits the force to the limiting section 22, and the limiting section 22 transmits the force to the first elastic member 31. The first elastic member 31 is applied to the small member 200 through the supporting sleeve 32, thereby preventing the user from applying too much force, which may cause the small member 200 to damage the threaded portion of the workpiece 300 with a softer hardness such as aluminum.

[0081] The assembly mechanism 100 provided in the embodiment of the present application, through the cooperation of the holding component 10, the assembly component 20 and the abutting component 30, threadably connects the small component 200 to the workpiece 300, and prevents the small component 200 from withdrawing from the threaded portion of the workpiece 300 following the rotation of the assembly component 20 when the assembly component 20 withdraws from the small component 200, thereby improving the assembly efficiency of the small component 200; through the cooperation of the first elastic component 31 and the abutting sleeve 32, when the assembly component 20 withdraws from the small component 200, the abutting sleeve 32 always abuts the small component 200, thereby preventing the small component 200 from withdrawing from the workpiece 300 following the rotation of the assembly component 20; through the detachable connection between the holding component 11 and the end cover 12, it is convenient to install components such as the assembly component 20 and the abutting component 30. The chamfered or rounded corners of the end cover 12 and the gripping member 11 improve the safety of use and prevent the corners of the end cover 12 and the gripping member 11 from scratching the user. The setting of the limit member 40 allows the assembly member 20 to rotate through the limit member 40 when the gripping component 10 rotates, thereby preventing the gripping component 10 from rotating relative to the assembly member 20 and making it impossible to assemble the assembly member 20 to the workpiece 300. The setting of the second elastic member 50 allows the force applied by the supporting sleeve 32 to the small member 200 to be transmitted to the supporting sleeve 320 by the first elastic member 31, rather than the pressure applied by the user to the gripping member 11, thereby preventing the user from applying too much force, which may cause the small member 200 to damage the threaded portion of the workpiece 300 with a softer hardness such as aluminum.

[0082] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. An assembly mechanism for assembling a small piece with internal and external threads on a workpiece, characterized in that: include: A grip assembly having a receiving cavity and a through hole communicating with the receiving cavity; An assembly part, one end of which is inserted into the accommodating cavity, the other end of which passes through the through hole to extend out of the gripping assembly, and the other end of which extends out of the gripping assembly has an assembly thread that matches the internal thread of the small part; A supporting assembly includes a first elastic member and a supporting sleeve, wherein the supporting sleeve is slidably mounted on the assembly member, one end of the supporting sleeve is inserted into the accommodating cavity, and the other end of the supporting sleeve passes through the through hole to extend out of the holding assembly, the first elastic member is located in the accommodating cavity, one end of the first elastic member is abutted against the assembly member, and the other end of the first elastic member is abutted against the supporting sleeve, and the first elastic member is used to apply elastic force to the supporting sleeve so that the supporting sleeve abuts against the small member.

2. The assembly mechanism according to claim 1, characterized in that: The holding component includes a connected holding piece and an end cover, both of which are hollow structures. The holding piece and the end cover enclose the accommodating cavity, and the through hole is opened at one end of the end cover away from the holding piece; the other end of the assembly passes through the through hole to extend out of the end cover, and the other end of the supporting sleeve passes through the through hole to extend out of the end cover.

3. The assembly mechanism according to claim 2, characterized in that: The holding piece and the end cover are detachably connected.

4. The assembly mechanism according to claim 1, characterized in that: The assembly mechanism further includes a limiting member, which is respectively connected to the holding assembly and the assembly member, so that the holding assembly drives the assembly member to rotate through the limiting member.

5. The assembly mechanism according to claim 4, characterized in that: The limiting member is connected to the holding assembly, and a portion of the structure of the limiting member extends into the accommodating cavity and is connected to the assembly member.

6. The assembly mechanism according to claim 5, characterized in that: The holding component is also symmetrically provided with two through holes both connected to the accommodating cavity, one end of the limiting member is located in one of the through holes, and the other end of the limiting member extends into the accommodating cavity and passes through the assembly part to extend into the other through hole.

7. The assembly mechanism according to claim 6, characterized in that: The assembly part is provided with a through hole, the through hole extending along the axial direction of the assembly part, the other end of the stopper passes through the through hole to extend into the other through hole, and the assembly part can move relative to the stopper along the axial direction of the assembly part through the through hole; The assembly mechanism also includes a second elastic member, which is located in the accommodating cavity, one end of the second elastic member abuts against one end of the assembly part inserted into the accommodating cavity, and the other end of the second elastic member abuts against an inner wall of the accommodating cavity opposite to the assembly part, and the second elastic member is used to apply an elastic force to the assembly part toward the abutting sleeve, and the elastic force applied by the second elastic member to the assembly part is greater than the elastic force applied by the first elastic member to the assembly part.

8. The assembly mechanism according to claim 1, characterized in that: One end of the abutting sleeve located in the accommodating cavity has an extension portion, and the cross-sectional area of ​​the extension portion along the direction perpendicular to the axial direction of the gripping assembly is larger than the cross-sectional area of ​​the through hole along the direction perpendicular to the axial direction of the gripping assembly.

9. The assembly mechanism according to claim 1, characterized in that: The assembly part includes a connected working section and a limiting section, the outer diameter of the limiting section is larger than the outer diameter of the working section, one end of the working section connected to the limiting section and the limiting section are both located in the accommodating cavity, one end of the working section away from the limiting section passes through the through hole and extends out of the holding component, and the assembly thread is arranged at the end of the working section away from the limiting section; the supporting sleeve and the first elastic member are both sleeved on the working section, and one end of the first elastic member abuts against one end of the limiting section connected to the working section, and the other end of the first elastic member abuts against the supporting sleeve, and the first elastic member is used to apply an elastic force to the supporting sleeve away from the limiting section.

10. The assembly mechanism according to claim 1, characterized in that: The outer peripheral side of the grip assembly is provided with anti-slip grooves.

Images