CN214560163U - Lock screw tool and lock screw system - Google Patents

Lock screw tool and lock screw system Download PDF

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Publication number
CN214560163U
CN214560163U CN202022969252.9U CN202022969252U CN214560163U CN 214560163 U CN214560163 U CN 214560163U CN 202022969252 U CN202022969252 U CN 202022969252U CN 214560163 U CN214560163 U CN 214560163U
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China
Prior art keywords
screw
pushing
gear
guide rail
locking
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CN202022969252.9U
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Chinese (zh)
Inventor
王军
刘阳
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Shining Reality Wuxi Technology Co Ltd
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Shining Reality Wuxi Technology Co Ltd
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Priority to CN202022969252.9U priority Critical patent/CN214560163U/en
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Abstract

The present disclosure provides a screw locking jig and a screw locking system. Each group of screw locking devices in the screw locking jig comprises a positioning insert and a propelling device. The positioning insert is matched with the matching part of the first part to fix the first part. The propelling device comprises a guide rail and a propelling part which is arranged on the guide rail and can move along the guide rail. The pushing part is provided with a pushing surface used for pushing at least two movable parts of the part. The pushing part is driven to advance a first distance along the guide rail towards the direction of the positioning insert, and the pushing surface of the pushing part pushes the at least two movable parts to move to a first target position, and at the first target position, the screw grooves or the screw holes of the locking parts of the at least two movable parts are aligned with the screw holes on the matching part one by one. Use this disclosed lock screw tool to lock the screw operation, reduced the operation degree of difficulty of aligning screw hole or screw groove to the efficiency of locking the screw has been promoted on the whole.

Description

Lock screw tool and lock screw system
Technical Field
The utility model relates to a production and processing technology field specifically relates to a lock screw tool and lock screw system.
Background
Electronic products need to fix all parts in the production and assembly process, and the fixing mode is mainly fixed by screws. At present, a manual screw locking mode is mainly adopted for locking screws. In the process of manually locking the screw, the part to be locked is manually fixed, and simultaneously the screw is placed into the screw hole and tightened electrically.
However, in the manual screw locking process, firstly, the screw holes are manually aligned, and the manual screw hole aligning process completely depends on the eye force, experience and operating force of workers, and the screw holes cannot be aligned by too much or too little force. Particularly when the screw holes are small, the difficulty of aligning the screw holes is greater. This results in a reduction in the efficiency of the lock screw.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present disclosure provides a screw locking jig and a screw locking system. Use this disclosed lock screw tool to lock the screw operation, reduced the operation degree of difficulty that will treat that the screw groove or screw hole that the lock attaches and screw hole align to the efficiency of locking the screw has been promoted on the whole.
According to one aspect of the disclosure, a screw locking jig is provided, which includes at least one set of screw locking devices, each set of screw locking device includes a positioning insert and a pushing device, the positioning insert is matched with a matching part of a first part to fix the first part; the pushing device comprises a guide rail and a pushing part which is arranged on the guide rail and can advance along the guide rail, the pushing part is provided with a pushing surface used for pushing at least two movable parts of the first part in a pushing mode, the pushing part is driven to advance for a first distance along the direction of the guide rail towards the positioning insert, and the at least two movable parts are moved to a first target position under the pushing of the pushing surface of the pushing part, so that screw grooves or screw holes of locking parts of the at least two movable parts are aligned with screw holes in the matching part one by one.
According to another aspect of the present disclosure, there is also provided a lock screw system including: the screw locking jig of any one of the above; and a first part comprising: the matching part is provided with a base and at least two tubular structures which are formed above the base and are used for the movable part to penetrate through, a screw hole is formed in the outer wall of the upper side of each tubular structure, and after the matching part is installed on a positioning insert of the screw locking jig, the axial directions of the at least two tubular structures are parallel to the guide rail of the screw locking jig; the screw locking jig comprises at least two movable parts, wherein each movable part comprises a guide rod and an locking part sleeved on the guide rod, a screw groove or a screw hole is formed in the locking part, a pushing part in the screw locking jig is driven to move a first distance along the guide rail towards the direction of the positioning insert block, and the pushing surface of the pushing part pushes the at least two movable parts to move to a first target position, so that the screw grooves or the screw holes of the locking parts of the at least two movable parts are aligned with the screw holes in the matching part one by one.
According to another aspect of the present disclosure, there is also provided a method for locking a screw of a first part by using a screw locking jig, the first part including at least two movable portions and a matching portion for the at least two movable portions to penetrate through, the screw locking jig including any one of the screw locking jigs described above, the method including: fixing the matching part of the first part on a positioning insert of the screw locking jig; driving a propelling part of at least one group of locking screw devices in the locking screw jig to advance for a first distance along a guide rail towards the direction of the positioning insert, and moving the at least two movable parts to a first target position under the pushing of a pushing surface of the propelling part so as to align screw grooves or screw holes of locking parts of the at least two movable parts with screw holes on the matching part one by one; and locking a screw into the screw hole of the mating portion and the screw slot or screw hole of the locking portion.
Drawings
A further understanding of the nature and advantages of the present disclosure may be realized by reference to the following drawings. In the drawings, similar components or features may have the same reference numerals.
Fig. 1 illustrates a perspective view of one example of a lock screw system according to an embodiment of the present disclosure.
Fig. 2 illustrates an exploded view of one example of a first part in accordance with an embodiment of the disclosure.
Fig. 3 illustrates a top view of one example of a second part according to an embodiment of the disclosure.
Fig. 4 shows a top view of the movable and mating portions of the first part and the second part in a connection-completed state, according to an embodiment of the disclosure.
Fig. 5 illustrates a perspective view of one example of a lock screw jig according to an embodiment of the present disclosure.
Fig. 6 shows an exploded view of the locking screw jig of fig. 5.
Fig. 7 illustrates a top view of one example of a positioning insert according to an embodiment of the present disclosure.
Fig. 8 illustrates a perspective view of one example of a propulsion device according to an embodiment of the present disclosure.
Fig. 9 illustrates a front view of one example of a gear and rack of an embodiment of the present disclosure.
Fig. 10 shows a top view of another example of a gear and rack of an embodiment of the present disclosure.
Fig. 11A and 11B show top views of another example of a propulsion device according to an embodiment of the present disclosure.
Fig. 12 illustrates a perspective view of an example of a lock screw jig mounted with a first part according to an embodiment of the present disclosure.
Fig. 13 illustrates a perspective view of another example of a lock screw jig according to an embodiment of the present disclosure.
Fig. 14 shows an exploded view of the locking screw jig of fig. 13.
Fig. 15A and 15B illustrate top and bottom views of one example of an outer cover according to an embodiment of the present disclosure.
Fig. 16 shows a flowchart of one example of a method of locking a part using a locking screw jig according to an embodiment of the present disclosure.
Description of the reference numerals
10: locking screw system 222: propelling part
100: first part 222-1: push-against face
110: the movable portion 223: propelling mechanism
111: the guide rods 224: locking mechanism
112: locking portion 225: ejection structure
113: the spring 226: stopping part
120: the engaging portion 227: spring
200: screw locking jig 230: base seat
210: positioning insert 240: outer cover
211: the protrusion 241: through hole
220: the propulsion device 300: second part
221: guide rail 310: rotating shaft hole
Detailed Description
The subject matter described herein will be discussed with reference to example embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thereby implement the subject matter described herein, and are not intended to limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as needed. In addition, features described with respect to some examples may also be combined in other examples.
As used herein, the term "include" and its variants mean open-ended terms in the sense of "including, but not limited to. The term "based on" means "based at least in part on". The terms "one embodiment" and "an embodiment" mean "at least one embodiment". The term "another embodiment" means "at least one other embodiment". The terms "first," "second," and the like may refer to different or the same object. Other definitions, whether explicit or implicit, may be included below. The definition of a term is consistent throughout the specification unless the context clearly dictates otherwise.
In the present disclosure, the term "connected" means either a direct mechanical connection or communication between two components or an indirect mechanical connection or communication through an intermediate component.
Fig. 1 illustrates a perspective view of one example of a lock screw system 10 according to an embodiment of the present disclosure.
As shown in fig. 1, the screw locking system 10 includes a first part 100 and a screw locking jig 200. The first part 100 includes at least two movable portions 110 and a mating portion 120. Each movable portion 110 is formed with a screw groove or a screw hole, and the engaging portion 120 is formed with a screw hole. The locking screw jig 200 is configured to perform an alignment operation on a screw groove or a screw hole in the movable part 110 and a screw hole of the fitting part 120. After the screw grooves or screw holes in the movable part 110 and the screw holes of the fitting part 120 are aligned, the aligned movable part 110 and fitting part 120 are locked with screws.
In one example of the present disclosure, the first part 100 may be connected with a temple, the fitting portion 120 of the first part 100 may be fixedly connected with the temple, the movable portion 110 is inserted into the fitting portion 120, and the first part 100 may be a first portion of a spring hinge on the temple. The second part of the spring hinge is connected in the glasses front cover, and the glasses legs can be connected with the glasses front cover through the spring hinge through the rotating fit of the first part of the spring hinge and the second part of the spring hinge. The screw locking jig 200 is used for rotatably connecting the first part of the spring hinge and the second part of the spring hinge. The spring hinge needs to be installed in the temple and the glasses front case while ensuring that the spring is in a compressed state so that the temple can rotate inward (toward the user) and outward (away from the user) with respect to the glasses front case in an unfolded state (a state in which the user wears glasses when using glasses), and the temple needs to overcome a certain initial force when starting to rotate inward or outward with respect to the glasses front case. In the present disclosure, the glasses may be AR glasses, VR glasses, or the like.
Fig. 2 shows an exploded view of one example of the first part 100, according to an embodiment of the disclosure. In the example shown in fig. 2, the first part 100 comprises 2 moving parts 110. In other examples of the disclosure, the first part 100 may include more than 2 moving parts 110.
As shown in fig. 2, each movable portion 110 may include a guide rod 111 and an attaching portion 112 sleeved on the guide rod 111.
The guide 111 may be made of any suitable material and formed into any suitable shape, such as a cylinder, square cylinder, etc. Preferably, the guide bar 110 is cylindrical in shape.
In one example, the guide bar 111 may be formed to have a guide bar body and two ends. Both end portions of the guide bar 111 are structured to prevent the locking portions 112 from being detached from the guide bar 111. For example, the two end portions are formed to be larger in size than the guide bar body. In one example, the first end and the second end may have different sizes, for example, the first end (the end to the right in fig. 2) may be formed to be smaller in size than the second end (the end to the left in fig. 2). In another example, the first end and the second end may have the same dimensions.
In one example, the shape of the first end and the second end may be the same or different. For example, the first end and the second end may both be formed as cylinders, and the length of the first end is less than the length of the second end. Alternatively, in another example, the second end may be formed to have a rotation shaft hole on a first portion of the spring hinge for connection with a second portion of the spring hinge. Further, in another example, the second end may be formed to be composed of a first portion having a different shape, which is close to the guide bar body, on which a prevention surface that prevents the lock attachment portion 112 from coming off the guide bar 111 is formed, and a second portion, which is far from the guide bar body, and in which a rotation shaft hole is formed, the rotation shaft hole on the first portion of the spring hinge being used to connect with the second portion of the spring hinge. For example, the first portion may be formed as a cylinder, and the second portion may be formed as a hook-shaped structure having a rotation shaft hole, and the hook-shaped structure may also be used to engage with the matching portion 120, so as to facilitate the positioning of the locking portion 112 sleeved on the guide rod 111 relative to the matching portion 120, as shown in fig. 2.
The locking part 112 is formed in a ring-shaped structure and is fitted over the guide body of the guide 111. The inner diameter of the locking attachment portion 112 is formed to be larger than the guide body of the guide 111 such that the locking attachment portion 112 can be fitted over the guide body of the guide 111. In addition, the inner diameter of the locking part 112 is formed to be smaller than the first and second ends of the guide bar 111, so that the locking part 112 fitted over the guide bar body of the guide bar 111 does not slip out from both ends. In one example, the inner diameter of the locking part 112 may be formed to be in transition fit with the size of the guide body of the guide 111, so that the locking part 112 can be sleeved on the guide body of the guide 111 and can slide on the guide body of the guide 111 only when the locking part 112 is subjected to an external force, which can prevent the locking part 112 sleeved on the guide 111 from sliding freely. In one example, the outer diameter of the locking attachment portion 112 may be formed to have the same size as that of the second end, and when the locking attachment portion 112 fitted over the guide body of the guide 111 is in contact with the second end, there is no step at the contact position of the locking attachment portion 112 with the second end.
The outer wall of the locking part 112 is further formed with a screw slot or a screw hole, and when the locking part 112 is fitted over the guide rod main body of the guide rod 111, the formed screw slot or screw hole faces the screw hole formed on the fitting part 120.
Optionally, in an example, each movable portion 110 may further include an elastic member, such as a spring 113, and an inner diameter of the spring 113 is larger than a guide rod main body of the guide rod 111, smaller than an outer diameter of the locking portion 112, and smaller than a size of the end surface of the first end of the guide rod 111. The spring 113 is sleeved on the guide rod main body of the guide rod 111 and abuts between the first end of the guide rod 111 and the locking part 112.
The fitting part 120 has a base, the bottom of which is formed with a fitting structure for mounting the fitting part 120 on a positioning insert of the lock screw device, which may be a groove, a protrusion, or the like. The shape of the mounting structure matches the shape of the positioning insert 210.
In one example, when the positioning insert 210 is provided with a protrusion for assisting in fixing the fitting portion 120, a groove that matches the protrusion of the positioning insert 210 may also be provided at a base position corresponding to the protrusion of the positioning insert 210, and any one of a matching screw hole, a rivet hole, and the like may also be provided on the groove and the protrusion.
A plurality of tubular structures through which the movable portion 110 is inserted, for example, tubular structures arranged side by side on the fitting portion 120 shown in fig. 2, are formed above the base of the fitting portion 120. The number of tubular structures formed corresponds to the number of movable portions 110 that the part has, each tubular structure being adapted to receive one of the movable portions 110 therethrough, e.g., such that a guide rod of the movable portion 110 extends at least partially through the tubular structure. After the fitting portion 120 is installed on the positioning insert 210 of the locking screw jig 200, the axial direction of each tubular structure is parallel to the guide rail 221 of the locking screw jig 200. A screw hole is also formed at an upper side wall of each tubular structure, for example, a side wall which is located right above the guide bar body when the movable portion 110 is inserted into the tubular structure. The dimensions of the screw hole formed in the mating portion 120 and the screw slot or screw hole formed in the locking portion 112 match the dimensions of the screw to be inserted.
In one example, in the case where the second end of the guide bar 111 has a hook structure, a U-shaped groove matching the hook structure may be formed on an upper side wall of an end portion of each tubular structure on the fitting portion 120 through which the movable portion 110 penetrates, and an orientation in which the guide bar 111 penetrates the tubular structure is limited by the hook structure and the U-shaped groove being fitted. The U-shaped slot is formed in line with the screw hole of the mating portion 120 such that the screw slot or hole of the locking portion 112 is in line with the hook-like structure, and when the guide rod 111 is inserted through the tubular structure, the screw slot or hole of the locking portion 112 is in line with the screw hole of the mating portion 120.
In one example, in the case that the first part 100 is connected to the temple, the movable part 110 may be rotatably connected to the second part 300 at the end of the front cover of the glasses, for example, by a rotating shaft hole provided on a hook-shaped structure of the movable part 110 to connect to the second part 300. The second part 300 is formed with a rotation shaft hole matching the rotation shaft hole on the second end of the guide rod 111.
Fig. 3 illustrates a bottom view of one example of a second part 300 according to an embodiment of the disclosure. As shown in fig. 3, the second part 300 may be formed with a rotation shaft hole 310 for rotatably engaging with the guide bar 111 of the first part 100. For example, the second member 300 includes a base and an extension wall extending from the base toward one side, and the extension wall is provided with a rotation shaft hole 310. Four extension walls extend from the base body towards one side, each extension wall is provided with a rotating shaft hole 310, every two of the four rotating shaft holes form a group, each group of rotating shaft holes are matched with the rotating shaft hole on the second end of one guide rod 111, and the first part 100 and the second part 300 can be rotatably connected through the rotating shaft holes of the rotating shaft connecting guide rod 111 and the second part 300. Alternatively, in another example, 2 rotation shaft holes 310 may be formed on the second part 300, and accordingly, the second end of the guide bar 111 may be formed with rotation shaft holes, each of the 2 rotation shaft holes matching with the rotation shaft hole on the second end of one guide bar 111.
The hook structure of the second end of the guide rod 111 can be inserted between the extension walls of the second part 300 in the opposite direction of the extension wall extension by pushing of the pushing part to align the rotation shaft hole on the guide rod 111 with the two rotation shaft holes 310 on the second part 300, and then the matching rotation shaft is inserted through the aligned rotation shaft holes and the ends of the rotation shaft are locked by the nuts, thereby locking the movable part 110 and the second part 300 together. When the movable portion 110 is locked with the second part 300, the spring 113 is in a compressed state. The extended wall of the base body of the second part 300 extending toward the other side may be further provided with screw holes for coupling with the front cover of the glasses.
Fig. 4 shows a top view of the movable portion 110 and the mating portion 120 of the first part 100 and the second part 300 in a connection-completed state according to an embodiment of the present disclosure. As shown in fig. 4, the movable portion 110 is connected to the fitting portion 120 and the second member 300, respectively. When the first and second parts 100 and 300 are coupled with the temple and the front cover of the glasses, respectively, the temple of the glasses is coupled with the front cover of the glasses through the spring hinge.
Fig. 5 illustrates a perspective view of one example of a lock screw jig 200 according to an embodiment of the present disclosure.
As shown in fig. 5, the screw locking jig 200 may include at least one set of screw locking devices, for example, the screw locking jig 200 shown in fig. 5 includes two sets of screw locking devices. Each set of the screw locking devices in the screw locking jig 200 at least includes a positioning insert 210 and a pushing device 220. The screw locking jig 200 may further have a base 230. In the example of fig. 5, the locking screw jig 200 includes only one base 230. Optionally, in another example, one seat may be provided for each set of lock screw devices. Fig. 6 shows an exploded view of the locking screw jig of fig. 5. The following describes each component of the screw locking jig 200 shown in fig. 5 and 6.
The positioning insert 210 is engaged with the engaging portion 120 of the first part 100 to position and fix the engaging portion 120. In one example, the positioning insert 210 may be formed with a groove or protrusion that mates with a protrusion or groove on the mating portion 120. When the mating portion 120 has a projection, the positioning insert 210 may be formed to have a groove matching the shape of the projection. When the mating part 120 has a groove, the positioning insert 210 may be formed to have a protrusion matching the shape of the groove.
Fig. 7 illustrates a top view of one example of a positioning insert 210 according to an embodiment of the present disclosure. As shown in fig. 7, the positioning insert 210 is formed to have a base and a projection 211 having an elliptic cylindrical shape. The protrusion 211 is formed above the base and is located at a central position on the base.
In one example, in a case that the positioning insert 210 is detachably connected to the base 230, at least one screw hole may be further formed on the base of the positioning insert 210, for example, as shown in fig. 7, four screw holes are formed on the base of the positioning insert 210, and the four screw holes are respectively located at four corners of the base. Accordingly, the location area of the base 230 where the positioning insert 210 is fixed has four screw holes corresponding to the four screw holes of the positioning insert 210, and when the positioning insert 210 is placed on the base 230, the respective screw holes of the positioning insert 210 are aligned with the respective screw holes of the base 230, and the positioning insert 210 is fixed on the base 230 by locking the screws into the aligned screw holes, respectively.
In one example, the positioning insert 210 may also be formed with a groove at an end of the positioning insert 210 that contacts the mating portion 120 for mating with a through hole in the base of the mating portion 120. For example, the protrusion 211 of the positioning insert 210 shown in fig. 7 is formed with two recesses. When the groove on the base of the mating part 120 is fittingly inserted into the protrusion 211 of the positioning insert 210, the through hole on the base of the mating part 120 is aligned with the groove on the protrusion 211 of the positioning insert 210, and a matching screw or rivet is used to lock into the aligned through hole on the base and the groove on the protrusion 211 to achieve positioning and fixing of the mating part 120. In another example, the positioning insert 210 is fixed to the base of the mating part 120, and a groove on the positioning insert 210 may be formed around the protrusion 211, and a matching through hole is provided at a position corresponding to the base of the mating part 120.
Fig. 8 illustrates a perspective view of one example of a propulsion device 220, according to an embodiment of the present disclosure.
As shown in fig. 8, the pusher 220 includes at least a guide rail 221 and a pusher 222.
The guide rail 221 may be formed in a stepped shape, and the stepped-shape guide rail 221 is bilaterally symmetrical along the traveling direction of the guide rail 221, so that the stepped-shape guide rail 221 has an even number of steps. For example, the guide rail 221 may be formed with six symmetrical steps, as shown in fig. 8. In one example, the steps on the guide rail 221 may form a slope in the vertical direction, the slope forming an acute angle with the horizontal plane of the steps. When the pushing part 222 is fittingly placed on the guide rail 221, the acute angle arrangement on the step may prevent the pushing part 222 from being separated from the guide rail 221 in the vertical direction of the guide rail 221.
In one example, the ends of both ends of the guide rail 221 each have a protrusion. The projection may be integrally formed with the guide rail 221 or may be detachably mounted on the guide rail 221. The protrusion of the end of the guide rail 221 may prevent the push-in portion 222 on the guide rail 221 from being separated from the end of the guide rail 221.
The pushing part 222 may include a base and an urging structure. The bottom of the base of the propelling part 222 is formed with a groove matching with the step shape of the guide rail 221, and the base of the propelling part 222 can be fittingly installed on the guide rail 221 and can move on the guide rail 221 under the action of external force, so as to drive the whole propelling part 222 to move.
The pushing structure of the pushing portion 222 is disposed above the base of the pushing portion 222 for pushing the movable portion 110. The end of the pushing structure of the pushing part 222 for pushing the movable part 110 exceeds the end of the base of the pushing part 222 in the extending direction of the guide rail 221, and the exceeding end contacts the movable part 110 first when the base of the pushing part 222 slides along the guide rail 221, and pushes the movable part 110 during the base of the pushing part 222 continues sliding. The pushing structure may be a square structure, for example, a rectangular parallelepiped structure as shown in fig. 8.
The base of the pushing part 222 and the pushing structure of the pushing part 222 may be integrally formed or may be detachably connected together. In one example, when the pushing structure of the pushing part 222 is detachably connected with the base of the pushing part 222, at least one (e.g., four) screw hole is formed on the pushing structure of the pushing part 222, correspondingly, the upper surface of the base of the pushing part 222 has a corresponding number of screw grooves, and when the screw hole on the pushing structure of the pushing part 222 is aligned with the screw groove on the base of the pushing part 222, a screw is locked in to fixedly connect the pushing structure of the pushing part 222 with the base of the pushing part 222.
The pushing structure of the pushing portion 222 has a pushing surface 222-1, the pushing surface 222-1 is used for pushing the movable portion 110 of the first part 100, and when the pushing structure of the pushing portion 222 pushes the movable portion 110, the pushing surface 222-1 contacts with an end surface of the movable portion 110. In one example, the pushing surface 222-1 may be a complete plane.
In one example of the present disclosure. As shown in fig. 8, the pushing structure of the pushing part 222 may further have an ejecting structure 225, and the ejecting structure 225 is a structure for pushing against the movable part 110. For example, the ejecting structure 225 is located at an end of the pushing structure, and the ejecting structure 225 protrudes beyond an end of the base of the pushing part 222 in the extending direction of the guide rail 221 to form a protrusion of the end of the pushing part 222 for pushing against the movable part 110. In this example, the end surface of the ejection structure 225 constitutes the pushing surface 222-1. The shape of the ejecting structure 225 may be any one of a square shape, a trapezoid shape, a truncated cone shape, etc., and the end surface of the ejecting structure 225 for forming the pushing surface 222-1 may be a complete plane, for example, as shown in fig. 8, the ejecting structure 225 is a trapezoid shape, and the upper surface of the trapezoid shape forms the pushing surface 222-1.
In one example, the ejection structure 225 may include at least two ejection rods disposed as the ejection structure 225 at an end of the push structure of the pushing portion 222. In this example, the number of ejector rods corresponds to the number of movable portions 110 in the part, and each ejector rod is directly opposite to one movable portion 110, and each ejector rod is used to push against one movable portion 110.
The ejection structure 225 includes end surfaces of the ejection rods, which may form the pushing surface 222-1, on the same horizontal plane. During the process that the pushing part 222 advances along the guide rail 221 towards the direction of the positioning insert 210, the end surface of each ejector rod simultaneously contacts with the opposite movable part 110 and simultaneously pushes each movable part 110 to advance.
In one example, the ejection structure 225 is a detachable structure, that is, the ejection structure 225 may be detachably connected with the pushing structure of the pushing part 222, and the detachable connection may include a screw method, a snap method, and the like. In this example, the removable connection facilitates replacement of a new ejection structure 225 to reduce errors caused by wear of the ejection structure 225 when the ejection structure 225 is used for a longer period of time or becomes worn.
When the pushing part 222 is mounted on the guide rail 221, the base of the pushing part 222 is pushed onto the guide rail 221 along the extending direction of the guide rail 221, so that the base can move along the guide rail 221.
In one example, the advancement device 220 can further comprise at least one of an advancement mechanism 223 and a locking mechanism 224.
The propulsion mechanism 223 may include a first component disposed on the guide rail 221 and the propulsion portion 222, respectively, for rolling engagement.
In one example for a rolling fit, a rack gear may be disposed on the rail 221, and a gear may be disposed within the propulsion portion 222, and in particular, a gear disposed within a base of the propulsion portion 222, and gear teeth and gear slots on the gear may be matingly engaged with gear slots and gear teeth, respectively, on the rack gear. When the pushing part 222 is fittingly placed on the guide rail 221, the gear in the pushing part 222 is fittingly combined with the rack on the guide rail 221. A gear driving mechanism perpendicular to the gear may be further disposed at the axial center of the gear, the gear driving mechanism includes a shaft connected to the axial center of the gear and a knob connected to the shaft, the shaft passes through the base wall of the propelling part 222, and the knob is located outside the propelling part 222, so that a user can operate the knob of the gear driving mechanism to drive the gear to roll on the rack.
When a user operates a knob of the gear driving mechanism to drive the gear to rotate, gear teeth and gear grooves on the gear are continuously meshed with gear grooves and gear teeth on the rack to transmit motion and power, so that the gear moves forwards, meanwhile, the gear driving mechanism fixed at the axis of the gear can realize linear movement, the linear movement gear driving mechanism drives the propelling part 222 to move together, and therefore the propelling part 222 also moves on the guide rail 221.
Fig. 9 illustrates a front view of one example of a gear and rack of an embodiment of the present disclosure. As shown in fig. 9, the gear may include a first gear portion and a second gear portion, the rack including a first rack portion and a second rack portion respectively engaged with the first gear portion and the second gear portion, the first gear portion and the first rack portion engaging with each other to move the push portion a first distance relative to the guide rail, the second gear portion and the second rack portion engaging with each other to move the push portion a second distance relative to the guide rail.
The first gear portion and the second gear portion constitute a complete circle of gears, and the proportion of the first gear portion and the proportion of the second gear portion in the complete circle can be set according to parts. For example, when a part is locked by using the screw locking jig of the present disclosure, the corresponding first distance and second distance are the same, and the first gear portion and the second gear portion each occupy a half-turn of the gear. The first gear portion has an arc length equal to the length of the first rack portion, and the second gear portion has an arc length equal to the length of the second rack portion. When the first gear portion and the first rack portion engage one another to roll the gear a first distance, the second gear portion and the second rack portion begin to engage one another to continue to roll the gear a second distance.
In one example, the accuracy of the meshing of the first gear portion and the first rack portion is the same as the accuracy of the meshing of the second gear portion and the second rack portion, i.e., the size and spacing of the gear teeth on the gear and rack are the same.
In another example, the meshing accuracy of the first gear portion and the first rack portion is different from the meshing accuracy of the second gear portion and the second rack portion, i.e., the size and spacing of the gear teeth on the first gear portion and the first rack portion is different from the size and spacing of the gear teeth on the second gear portion and the second rack portion.
The gear and the rack with high meshing precision have small moving step length in each moving process, and the gear and the rack with low meshing precision have large moving step length in each moving process. This allows the precision of the engagement required to set the stroke for each distance to be distributed according to the precision required for the two distances. Taking fig. 1-4 as an example, the first distance is intended to move the movable portion 110 to a first target position where the screw slot or screw hole on the locking portion 112 is aligned with the screw hole on the mating portion 120, and since the screw slot or screw hole on the locking portion 112 and the screw hole on the mating portion 120 are both small, the screw for locking is also small, and thus a high degree of movement accuracy is required to align the two screw holes. Based on this, the meshing accuracy of the first gear portion and the first rack portion can be set high. The purpose of the second distance is to move the guide rail of the movable part to a second target position where the spindle hole in the guide rod 111 is aligned with the spindle hole in the second part 300, both of which have a larger hole area for easy alignment. Therefore, the accuracy of engagement of the second gear portion and the second rack portion can be set low. At this second target position, the spring 113 is in a compressed state after the guide rod 111 is aligned with the second part 300 and locked with the pivot. The spring hinges mounted on the temple and the front cover of the glasses have a certain compressive force.
Fig. 10 shows a top view of another example of a gear and rack of an embodiment of the present disclosure. As shown in fig. 10, the first assembly may include a gear train on the propelling part 222, a rack gear provided on the guide rail 221, and a gear driving mechanism for driving the rotation of the gear. The gear set may include a first gear and a second gear, and the rack may include a first rack portion and a second rack portion that mate with the first gear and the second gear, respectively.
The first and second gears may be arranged side by side. In one example, the first gear and the second gear are coaxially arranged side by side and can rotate synchronously. The length of the first gear that intermeshes with the first rack portion is the length of the first rack portion that moves the pusher 222 a first distance relative to the rail. The length of the second gear that intermeshes with the second rack portion is the length of the second rack portion that moves the pusher 222 a second distance relative to the rail. The first rack portion and the second rack portion are not connected in alignment, but are arranged offset.
In this example, the meshing accuracy of the first gear and the first rack portion is different from the meshing accuracy of the second gear and the second rack portion.
When the first gear and the first rack are meshed with each other, the second gear is suspended and cannot be meshed with the rack. In this process, the first gear and the first rack portion roll on the first rack portion in an interlocking manner, the rolling of the first gear drives the gear driving mechanism to move linearly, and the gear driving mechanism can drive the propelling part 222 to move along the guide rail 221.
At the end of the intermeshing of the first gear and the first rack portion, the second gear begins to intermesh with one end of the second rack portion, and then as the gears continue to roll, the second gear intermeshes with the second rack portion. In the process, the first gear part is suspended and cannot be meshed with the rack. In this process, the second gear and the second rack portion roll on the second rack portion so as to engage with each other, the rolling of the second gear drives the gear drive mechanism to move linearly, and the gear drive mechanism can drive the propelling part 222 to move along the guide rail 221.
In one embodiment, the pushing portion 222 and the guide rail 221 may also be in a sliding fit, the surface of the pushing portion 222 and the guide rail 221 that contact each other is smooth, and the pushing portion 222 can slide on the guide rail 221 based on the smooth contact surface and the external force. The side of the pusher 222 has a drive mechanism, which may be a protrusion on the side, such as a handle. The driving mechanism is convenient for a user to hold, and the user can push the pushing part 222 to slide on the guide rail 221 by holding the driving mechanism.
The locking mechanism 224 includes a second component for snap-fit or abutting fit provided on the guide rail 221 and the pusher 222, respectively. The second assembly may comprise at least two parts, wherein at least one part is arranged on the guide rail 221 and at least one part is arranged on the pushing part 222, the parts on the pushing part 222 cooperating with the parts on the guide rail 221 for a locking operation. The mating means at least includes snap-fit, butt-fit, etc.
For snap-fitting, one of the two snap-fitted parts is embedded in the other part, so that the two parts are fixedly connected. Two parts for snap-fitting are located on the pushing part 222 and on the guide rail 221, respectively, the snap-fitting parts on the guide rail 221 can be installed at a first target position and at a second target position, and the part for snap-fitting on the pushing part 222 can be provided on the base of the pushing part 222 and move following the base of the pushing part 222. When the base of the pusher 222 is moved to the first target position and to the second target position, the part for snap-fitting on the pusher 222 may be inserted into the part for snap-fitting on the rail 221 so that the two parts for snap-fitting are fixedly connected, thereby locking the pusher 222 on the rail 221 for the bolt-locking operation at the first target position and the second target position.
For the abutting engagement, two abutting members for the abutting engagement are respectively located on the pushing portion 222 and the guide rail 221, and when the two abutting members abut against each other, there is an interaction force between the two abutting members so that the two abutting members are fixedly connected, thereby relatively fixing the position between the pushing portion 222 and the guide rail 221. For example, the two abutment members are a groove and an abutment rod, respectively, which can be fittingly inserted into the groove. The grooves are provided at a first target position and a second target position on the guide rail 221, respectively, and the abutment lever is provided on the base of the pushing section 222 and is perpendicular to the direction of the guide rail 221. When the pushing part 222 moves to the first target position and to the second target position, the abutting rod may be inserted into the groove to be in abutting engagement with the groove, so that the position between the base of the pushing part 222 and the guide rail 221 is relatively fixed.
In an example of the present disclosure, a scale may be disposed on the guide rail 221, and the scale may be used to measure the moving distance of the propelling part 222 along the guide rail 221 towards the positioning insert 210.
In this example, the advancing part 222 may start to move from a preset initial position every time the locking screw operation is performed, and the moving distance of the advancing part 222 is measured in real time with a scale. When the advancing portion 222 is moved a first distance to a first target position, the screw slot or screw hole on the locking portion 112 is aligned with the screw hole on the mating portion 120. When the pushing part 222 moves a second distance to a second target position, the rotation shaft hole on the guide rod 111 is aligned with the rotation shaft hole on the second part 300. The manner of measuring the moving distance of the pushing part 222 against the movable part 110 by the graduated scale reduces the operation difficulty of aligning the screw slot of the locking part 112 in the component with the screw hole on the matching part 120.
In another example of the present disclosure, the guide rail 221 may further include a protrusion, and the protrusion may cooperate with the pushing part 222 to limit the position of the pushing part 222, so as to prevent the pushing part 222 from moving on the guide rail. The protrusion may be provided on the upper surface of the guide rail 221, and the protrusion may be elevated on the surface of the guide rail 221. When the projection is raised, a projection is formed on the surface of the guide rail 221. As the projection descends, it is in a complete plane at and around the location where the pusher 222 can continue to move. When the push part 222 moves a first distance on the guide rail 221 to a first target position, the protrusion on the guide rail 221 is raised to prevent the push part 222 from continuing to travel. When the locking operation of the locking and attaching portion and the engaging portion is completed at the first target position, the projection is lowered, and the pushing portion 222 may continue to move.
The protrusion is matched with the pushing part 222 for limiting, so that an operator can push the pushing part 222 to move the movable part 110 for the first distance and the second distance accurately. When the operator performs the screw locking operation, the pushing portion 222 can be pushed along the guide rail 221 until the pushing portion 222 cannot move, and the pushing portion 222 reaches the first target position or the second target position. This eliminates the need for the operator to precisely move the pusher 222 slowly and visually observe whether the screw hole pairs are aligned. The operation difficulty of aligning the screw groove or the screw hole with the screw hole is reduced.
In another example of the present disclosure, a position identifier may be further disposed on the guide rail 221, the position identifier may be disposed at a first target position and a second target position on the guide rail 221, respectively, and the position identifiers at the first target position and the second target position may be different. When the pushing part 222 pushes the movable part 110 to travel along the guide rail 221, when the pushing part 222 moves to the position mark at the first target position, it indicates that the pushing part 222 moves a first distance on the guide rail 221 to reach the first target position. When the pushing part 222 moves to the position indicator at the second target position, it indicates that the pushing part 222 moves a second distance on the guide rail 221 to reach the second target position. By marking the first and second target positions by providing position marks on the guide rail 221, the first and second target positions are clearly indicated to the user, thereby facilitating the user to perform the operation of aligning the screw slot or screw hole with the screw hole. It should be noted that the distance that the pushing member 222 needs to move may be determined by using any position on the pushing member 222 as a reference point, for example, when the end surface of the base of the pushing member 222 is used as a reference point, and when the end surface of the base moves by the first distance or the second distance, the pushing member 222 also moves by the first distance or the second distance accordingly.
Fig. 11A and 11B show top views of another example of a propulsion device 220 according to an embodiment of the present disclosure. As shown in fig. 11A and 11B, the guide rail 221 of the pusher 220 is a rod of uniform size, and the guide rail 221 shown in fig. 11A and 11B has two rods, and in one example, the guide rail 221 may have one rod or at least two rods. The base of the pushing part 222 of the pushing device 220 is formed with through holes matching with the rods of the guide rail 221, and the number of the through holes is the same as that of the rods of the guide rail 221. The base of the pushing section 222 is fitted to the rod of the guide rail 221 through a through hole and is movable on the rod of the guide rail 221. Fig. 11A and 11B show only the base of the pusher 222, and the rest of the pusher 222 is omitted. Reference numeral 222 in fig. 11A and 11B may denote a complete pusher 222.
Besides, the propelling device 220 is further provided with a spring 227, two ends of the guide rail 221 in the propelling device 220 are provided with stopping parts 226 for stopping the propelling part 222 from being separated from the guide rail 221, and two ends of the spring 227 are respectively connected with the propelling part 222 and the stopping parts 226 at one end part of the guide rail 221.
As shown in fig. 11A, when the pushing part 222 is at the initial position, the pushing part 222 does not push the movable part 110, the spring 227 is in a natural state of no compression and no tension, and when the locking screw device performs the locking screw operation, the pushing part 222 needs to move to the stopping part 226 which is not connected to the other end part of the spring 227. During the movement of the pusher 222 along the guide rail 221 in the direction of the other end, the spring 227 is in a stretched state. When the screw locking device completes one screw locking operation, the pushing part 222 is unlocked or the operator releases the hand controlling the pushing part 222, at this time, the pushing part 222 moves towards the stopping part 226 connected with the spring 227 under the action of the tensile force of the spring 227 until the spring 227 returns to the natural state, at this time, the pushing part 222 is at the initial position.
As shown in fig. 11B, when the pushing part 222 is at the initial position, the pushing part 222 does not push the movable part 110, the spring 227 is in a natural state without compression and tension, and when the locking screw device performs the locking screw operation, the pushing part 222 needs to move toward the stopping part 226 of the connecting spring 227. During the movement of the pushing part 222 along the guide rail 221 in the direction of the stopper part 226 to which the spring 227 is connected, the spring 227 is in a compressed state. When the screw locking device completes one screw locking operation, the pushing part 222 is unlocked or the operator releases the hand controlling the pushing part 222, at this time, the pushing part 222 moves towards the other end under the compression force of the spring 227 until the spring 227 returns to the natural state, at this time, the pushing part 222 is at the initial position.
With the above example, after each locking screw operation is completed, the pushing part 222 can be moved to the initial position by using the tensile force or the compressive force of the spring 227, and the pushing part 222 does not need to be manually restored to the initial position by an operator, thereby providing convenience for the operator.
Returning to fig. 5 and 6, the base 230 is formed in an L-shaped configuration. The positioning insert 210 and the pushing device 220 in each set of lock screw devices can be fixed on the base 230. Specifically, the positioning insert 210 is fixed on the vertical part of the L-shaped structure, and the guide rail 221 of the pushing device 220 is fixed on the horizontal part, and the relative position relationship between the vertical part and the horizontal part is such that the first part 100 fixed on the positioning insert 210 and the pushing surface 222-1 of the pushing part 222 are on the same horizontal plane.
In one example, when a plurality of sets of screw locking devices are included in the screw locking jig 200, the screw locking devices may be fixed side by side, as shown in fig. 5 and 6, and two sets of screw locking devices in the screw locking jig 200 are fixed side by side on the base 230.
The guide rail 221 of the propelling device 220 can be fixed on the base 230 by means of screws, buckles, and the like, the positioning insert 210 can be fixed on the base 230 by means of buckles, bolts, guide posts, and the like, and the positioning insert 210 and the guide rail 221 of the propelling device 220 are mounted on the base 230 to form a locking screw device with a screw locking function. The base 230 shown in fig. 5 and 6 is fitted with a base rubber pad. The base rubber pad is used for supporting the base 230 and plays a role in preventing the base 230 from sliding, so that the screw locking operation can be stably performed using the screw locking jig 200.
In one example, the base on the positioning insert 210 is used for being fixedly connected with the base 230, and a groove matched with the base of the positioning insert 210 is formed on the vertical part of the base 230, and the shape of the groove is the same as that of the base of the positioning insert 210, so that the base on the positioning insert 210 can be fittingly placed in the groove of the base 230, and the positioning insert 210 can be fixed on the base 230. Taking fig. 7 as an example, the base on the positioning insert 210 is a cube, and accordingly, the groove on the base 230 is also a cube-shaped groove, and the cube shape of the groove matches the cube shape of the base. Further, the depth of the groove of the base 230 coincides with the height of the base on the positioning insert 210, so that the surface of the base of the positioning insert 210 is on the same level as the face around the notch of the groove of the base 230 when the base on the positioning insert 210 is put into the groove of the base 230.
In the above example, the guide rail 221 and the positioning insert 210 are both fixed on the base 230, so that the positions of the guide rail 221 and the positioning insert 210 are relatively fixed, the guide rail 221 always faces the direction of the positioning insert 210, and the pushing surface 222-1 of the pushing device 220 is on the same horizontal plane as the first part 100 to which the positioning insert 210 is fixed, so that the pushing surface 222-1 can contact and push the movable part 110 in the first part 100 by the movement of the pushing part 222 along the guide rail 221.
In another example, the screw locking jig 200 may not include the base 230. In this example, the guide rail 221 and the positioning insert 210 have fixing portions respectively, the fixing portions on the guide rail 221 and the positioning insert 210 are fixedly connected through a support member, and two ends of the support member are respectively connected with the fixing portions on the guide rail 221 and the fixing portions on the positioning insert 210, and the connection manner may be a threaded connection, a rivet connection, a snap connection, or the like. The support member may be made of a rigid material such as steel, iron, hard plastic, etc. to keep the position of the guide rail 221 and the positioning insert 210 fixed relative to each other. The support member may be L-shaped, so that the two ends of the support member have a certain height difference, and the positioning insert 210 and the guide rail 221 are respectively installed at the two ends of the support member. The height difference is high, so that the first part 100 mounted on the positioning insert 210 is on the same level with the pushing surface 222-1 of the pushing part 222 on the guide rail 221.
For example, the fixing portion on the guide rail 221 is a threaded groove, the fixing portion on the positioning insert 210 is also a threaded groove, two ends of the support are respectively formed as threaded nails, the threaded nails at the two ends are respectively matched with the threaded groove on the guide rail 221 and the threaded groove on the positioning insert 210, and the threaded nails can be respectively locked into the corresponding threaded grooves, so that the guide rail 221 and the positioning insert 210 are fixedly connected through the support.
Fig. 12 illustrates a perspective view of an example of the lock screw jig 200 mounted with the first part 100 according to an embodiment of the present disclosure.
As shown in fig. 12, after the positioning insert 210 and the guide rail 221 are fixed to the base 230, the guide rail 221 faces the positioning insert 210. The first part 100 is fittingly installed on the positioning insert 210, the pushing part 222 is placed on the guide rail, and the pushed end surface of the movable part 110 in the first part 100 is opposite to the pushing surface 222-1 of the pushing device 220.
The pushing portion 222 is driven to travel a first distance along the guide rail 221 in the direction of the positioning insert 210 to move the at least two movable portions 110 to a first target position under the pushing of the pushing surface 222-1 of the pushing portion 22, where the screw grooves or screw holes of the locking portions 112 of the at least two movable portions 110 are aligned with the screw holes of the fitting portion 120 one by one.
The propulsion unit 222 may be driven by a human power or a machine. The first distance may be set according to the first part 100, and the first distance may be set differently for different parts.
In one example, after each of the locking portions 112 and the mating portions 120 of the at least two movable portions 110 of the first part 100 are locked, the locking portions 112 and the mating portions 120 are relatively fixed.
The pushing portion 222 is driven to continue to travel a second distance along the guide rail 221 in the direction of the positioning insert 210, so that the guide rod 111 of each movable portion 110 continues to move to a second target position where the rotating shaft hole of the guide rod 111 is aligned with the rotating shaft hole of the second part 300 under the pushing of the pushing surface 222-1 of the pushing portion 222. When the guide 111 is aligned with the second part 300 and locked with the pivot, the spring 113 is in a compressed state.
In one example of the present disclosure, when a plurality of sets of lock screw devices are included in the lock screw jig 200, the respective advancing devices 220 of the respective sets of lock screw devices may be provided in linkage. When the pushing portions 222 of one of the groups of lock screw devices move, the pushing portions 222 of the other groups of lock screw devices also move at the same time. In one example, the speed and distance that each pusher 222 in each set of lock screw devices moves is consistent. In another example, the speed and distance that each pusher 222 of each set of lock screw devices moves may differ, such as by a speed change gear connection between the two sets of lock screw devices. Through the linkage setting of each group of screw locking devices, the screw locking operation of a plurality of groups of screw locking devices is convenient to operate simultaneously, and the screw locking efficiency is improved. Taking fig. 12 as an example, the two sets of locking screw devices in fig. 12 are arranged in linkage, and the pushing portions 222 of the two sets of locking screw devices are simultaneously pushed to move toward the positioning insert 210 and simultaneously move against the movable portion 110 of the part fixed on the positioning insert 210.
In another example, each set of lock screw devices may perform the lock screw operation independently. For example, in the two sets of locking screw devices in fig. 12, only one of the locking screw devices is used for locking screw operation, and the other is not used, so that the number of sets of locking screw devices can be flexibly selected according to different requirements.
Fig. 13 illustrates a perspective view of another example of a lock screw jig 200 according to an embodiment of the present disclosure. As shown in fig. 13, the screw locking jig 200 may further include an outer cover 240. After the positioning insert 210 is engaged with the engaging portion 120 of the first part 100 to complete positioning and fixing, the outer cover 240 can press the positioning insert 210 and the first part 100 onto the base 230, as shown in fig. 13. Fig. 14 shows an exploded view of the locking screw jig of fig. 13.
In one example, when there are multiple sets of locking screw devices in the locking screw jig 200, the positioning insert 210 in each set of locking screw devices is pressed under the same cover 240 as the first part 100. In another example, the outer cover 240 for each set of locking screw arrangements is different.
Fig. 15A and 15B illustrate top and bottom views of one example of the outer cover 240 according to an embodiment of the present disclosure. Fig. 15A and 15B illustrate front and rear surfaces of the outer cover 240, respectively. As shown in fig. 15B, the portion indicated by the dashed box is a recess in the outer cover 240 that mates with the first part 100 secured to the mating portion 120. When the outer cap 240 caps the first part 100, the first part 100 is capped in the groove.
In one example, the outer cover 240 may further have a through hole for determining the relative position of the outer cover 240 and the base 230, and accordingly, the vertical portion of the base 230 has a protrusion thereon matching the through hole. In addition, as shown in fig. 15B, the outer cover 240 may further have protrusions, which may be located at both end positions of the gland, and the shape of the protrusions may be an elliptical guide post, and accordingly, the vertical portion of the base 230 has an elliptical cylindrical groove thereon. The oval-shaped posts and/or through holes can mate with corresponding oval-shaped cylindrical recesses and/or protrusions on the base 230 to determine the relative position of the outer cover 240 to the base 230. When the oval-shaped guide posts of the outer cover 240 are inserted into the oval-shaped cylindrical grooves of the base 230, the relative positions of the outer cover 240 and the base 230 are determined, and thus the mounting position of the outer cover 240 is also determined.
After the relative positions of the cover 240 and the base 230 are determined, the cover 240 can press the positioning insert 210 and the first part 100 onto the cover 240 at the corresponding matching positions. The cooperation of the cover 240 and the positioning insert 210 provides a more effective fastening of the first part 100. The operation of mounting the outer cover 240 on the base 230 using the through-hole of the outer cover 240 is simpler and the accuracy of mounting the outer cover 240 is improved.
In one example, the outer cover 240 may further include through holes 242 thereon, and the number of the through holes 242 on the outer cover 240 corresponds to the number of the screw holes on the fitting part 120.
The through holes 242 are aligned with the screw holes in the mating portion 120 of the first part 100 when the first part 100 is secured by the positioning insert 210 and the cover 240. When the screw slots or screw holes of the locking attachment portion 112 of the first part 100 are aligned with the screw holes of the mating portion 120, the through holes 242 are aligned with the screw holes.
As shown in fig. 15A and 15B, the outer cover 240 of each set of locking screw devices includes two through holes 242, the fitting portion 120 of the first member 100 has two screw holes, and the distance between the two screw holes of the fitting portion 120 is the same as the distance between the two through holes 242. When the cover 240 and the components are fixed to the base 230, the two through holes 242 are aligned with the two screw holes of the fitting part 120, respectively.
One end (hereinafter referred to as C-end) of the through hole 242 is close to the fitting portion 120 and aligned with the screw hole of the fitting portion 120, and the other end (hereinafter referred to as D-end) is far from the fitting portion 120 and above the C-end. When the screw locking operation is performed, a screw is put into the through hole 242 from the D end and then goes out through the C end of the through hole 242, and the screw coming out from the C end enters the screw hole of the fitting part 120 because the C end is aligned with the screw hole of the fitting part 120.
In one example, the port areas of the C-end and the D-end of the through hole 242 are larger than the port area of the screw hole on the fitting portion 120, but the port area of the C-end can ensure that the screw can smoothly enter the screw hole from the C-end when the C-end is aligned with the screw hole, and the screw cannot leak out of the gap between the C-end and the screw hole or be stuck in the gap.
In this example, the through hole 242 may be a cylindrical passage or a truncated cone-shaped passage, in which case the port area of the C end is smaller than that of the D end.
In another example, the port area of the C-end of the through hole 242 is the same as the port area of the screw hole on the fitting portion 120, and the port area of the D-end is larger than the port area of the C-end and also larger than the port area of the screw hole. For example, the through-hole 242 may be a truncated-cone-shaped channel.
In both of the above examples, the end of the through hole 242 for placing a screw (i.e., the D-end) is larger in area than the port of the screw hole on the fitting portion 120, facilitating the operator to place a screw into the through hole 242.
Fig. 16 shows a flow diagram of one example 1600 of a method of locking a screw to a first part using a locking screw fixture, in accordance with an embodiment of the present disclosure. In the method, the locking screw jig used may be the locking screw jig described in any one of fig. 5 to 15B.
As shown in fig. 16, at 1610, the mating portion of the first part is secured to the positioning insert of the locking screw jig.
At 1620, the pushing portion of at least one set of locking screw devices in the locking screw jig is driven to advance a first distance along the guide rail toward the positioning insert, so as to move the at least two movable portions to a first target position under the pushing of the pushing surface of the pushing portion, where the screw grooves or screw holes of the locking attachment portions of the at least two movable portions are aligned with the screw holes of the mating portion one by one.
At 1630, the screw is locked into the screw hole of the mating portion and the screw slot or screw hole of the locking portion.
In one example, the end of the guide rod in each movable portion, which is away from the propelling portion, is formed with a rotating shaft hole. After the locking part and the matching part are locked, the pushing part is driven to continue to advance for a second distance along the guide rail towards the direction of the positioning insert, so that the guide rods of the movable parts continue to move to a second target position under the pushing action of the pushing surface of the pushing part, and the rotating shaft holes of the guide rods are aligned with the rotating shaft holes of the second part at the second target position.
Optionally, in one embodiment, the ejection structure is a detachable structure.
Alternatively, in one embodiment, the sets of lock screw devices are secured side-by-side and the pushers of each set of lock screw devices are arranged in a linkage.
Optionally, in an embodiment, the guide rail is provided with at least one of a graduated scale, a position mark and a protrusion for cooperating with the propelling part for limiting.
Optionally, in one embodiment, the positioning insert is formed as at least one of a groove and a projection.
Optionally, in an embodiment, the screw locking jig further includes an outer cover, and after the positioning insert and the mating portion of the first part are matched to complete positioning and fixing, the outer cover presses the positioning insert and the first part on the base.
Optionally, in one embodiment, for each set of locking screw arrangements, the outer cover further comprises at least two through holes, the through holes on the outer cover being aligned with corresponding screw holes on the mating portion when the first part is capped by said outer cover.
Optionally, in one embodiment, the port area of the through-hole on the outer cover is larger than the port area of the corresponding screw hole on the mating portion.
Optionally, in one embodiment, the through hole in the outer cover is a truncated cone shaped through hole.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Not all steps and elements in the above flows and system structure diagrams are necessary, and some steps or elements may be omitted according to actual needs. The execution order of the steps is not fixed, and can be determined as required. The apparatus structures described in the above embodiments may be physical structures or logical structures, that is, some units may be implemented by the same physical entity, or some units may be implemented by a plurality of physical entities, or some units may be implemented by some components in a plurality of independent devices.
The term "exemplary" used throughout this specification means "serving as an example, instance, or illustration," and does not mean "preferred" or "advantageous" over other embodiments. The detailed description includes specific details for the purpose of providing an understanding of the described technology. However, the techniques may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described embodiments.
Alternative embodiments of the present disclosure are described in detail with reference to the drawings, however, the embodiments of the present disclosure are not limited to the specific details in the embodiments, and various simple modifications may be made to the technical solutions of the embodiments of the present disclosure within the technical concept of the embodiments of the present disclosure, and the simple modifications all belong to the protective scope of the embodiments of the present disclosure.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A screw locking jig is characterized by comprising at least one group of screw locking devices, each group of screw locking devices comprises a positioning insert and a propelling device,
the positioning insert is matched with the matching part of the first part to fix the first part;
the propelling device comprises a guide rail and a propelling part which is arranged on the guide rail and can advance along the guide rail, and the propelling part is provided with a pushing surface for pushing at least two movable parts of the first part;
the pushing part is driven to advance a first distance along the guide rail towards the positioning insert, and the pushing surface of the pushing part pushes the at least two movable parts to move to a first target position, so that the screw grooves or screw holes of the locking parts of the at least two movable parts are aligned with the screw holes of the matching part one by one.
2. The screw locking jig of claim 1, further comprising a base, wherein the positioning insert and the pushing device in each set of screw locking devices are fixed on the base;
after the locking part and the matching part are locked, the pushing part is driven to continue to travel a second distance along the guide rail towards the direction of the positioning insert, and the guide rods of the movable parts continue to move to a second target position under the pushing of the pushing surfaces of the pushing part, so that the rotating shaft holes of the guide rods are aligned with the rotating shaft holes of the second part;
the propelling device further comprises at least one of a propelling mechanism and a locking mechanism, the propelling mechanism comprises a first component which is arranged on the guide rail and the propelling part respectively and is used for rolling fit, and the locking mechanism comprises a second component which is arranged on the guide rail and the propelling part respectively and is used for buckling fit or abutting fit;
the first assembly comprises a gear arranged on the propelling part, a rack arranged on the guide rail and a gear driving mechanism for driving the gear to rotate, wherein the gear comprises a first gear part and a second gear part, the rack comprises a first rack part and a second rack part which are respectively matched with the first gear part and the second gear part, the first gear part and the first rack part are mutually meshed and rolled to drive the propelling part to move the first distance relative to the guide rail, and the second gear part and the second rack part are mutually meshed and rolled to drive the propelling part to move the second distance relative to the guide rail;
the two ends of the guide rail are provided with stopping parts for stopping the propelling part from being separated from the guide rail, the propelling device further comprises a spring, and the two ends of the spring are respectively connected with the propelling part and one end part of the guide rail;
the pushing part is detachably connected with an ejection structure, and the end surface of the ejection structure forms the pushing surface;
the ejection structure comprises at least two ejection rods for respectively abutting against the at least two movable parts, and the end surfaces of the at least two ejection rods form the abutting surface.
3. The screw locking jig of claim 2 wherein the first assembly includes a gear set disposed on the pusher, a rack disposed on the rail, and a gear drive mechanism for driving the gear set to rotate, the gear set including a first gear and a second gear, the rack including a first rack portion and a second rack portion respectively cooperating with the first gear and the second gear, the first and second rack portions being staggered, the first gear and the first rack portion meshing with each other to drive the pusher to move the first distance relative to the rail, and the second gear and the second rack portion meshing with each other to drive the pusher to move the second distance relative to the rail.
4. The screw-locking jig according to claim 2 or 3, wherein the accuracy of engagement of the first gear portion and the first rack portion is different from the accuracy of engagement of the second gear portion and the second rack portion, or
The first gear and the first rack portion have a different meshing accuracy from the second gear and the second rack portion.
5. A lock screw system, comprising:
the screw locking jig of any one of claims 1 to 4; and
a first part, the first part comprising:
the matching part is provided with a base and at least two tubular structures which are formed above the base and are used for the movable part to penetrate through, a screw hole is formed in the outer wall of the upper side of each tubular structure, and after the matching part is installed on a positioning insert of the screw locking jig, the axial directions of the at least two tubular structures are parallel to the guide rail of the screw locking jig;
each movable part comprises a guide rod and an attaching part sleeved on the guide rod, and a screw groove or a screw hole is formed in the attaching part;
the pushing part in the screw locking jig is driven to advance for a first distance along the guide rail towards the direction of the positioning insert, and the pushing surface of the pushing part pushes and moves the at least two movable parts to a first target position, so that the screw grooves or screw holes of the locking parts of the at least two movable parts are aligned with the screw holes on the matching part one by one.
6. The lock screw system of claim 5, wherein both ends of the guide bar are structured to prevent the attachment portion from disengaging the guide bar; the guide rod is sleeved with an elastic piece, and two ends of the elastic piece are respectively abutted against one end of the guide rod close to the guide rail and the locking part;
a rotating shaft hole is formed at the end part of the guide rod in each movable part far away from the propelling part,
after the locking part and the matching part are locked, the pushing part is driven to continue to travel for a second distance along the guide rail towards the direction of the positioning insert, and the guide rods of the movable parts continue to move to a second target position under the pushing of the pushing surfaces of the pushing part, so that the rotating shaft holes of the guide rods are aligned with the rotating shaft holes of the second part.
CN202022969252.9U 2020-12-11 2020-12-11 Lock screw tool and lock screw system Active CN214560163U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022969252.9U CN214560163U (en) 2020-12-11 2020-12-11 Lock screw tool and lock screw system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022969252.9U CN214560163U (en) 2020-12-11 2020-12-11 Lock screw tool and lock screw system

Publications (1)

Publication Number Publication Date
CN214560163U true CN214560163U (en) 2021-11-02

Family

ID=78330776

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022969252.9U Active CN214560163U (en) 2020-12-11 2020-12-11 Lock screw tool and lock screw system

Country Status (1)

Country Link
CN (1) CN214560163U (en)

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