A production equipment for tailless screw sleeve

Abstract

The invention relates to the technical field of screw sleeve production, in particular to a tailless screw sleeve and production equipment thereof, comprising a tailless screw sleeve body, wherein the tailless screw sleeve body comprises a beginning portion and a tail portion integrally formed at two ends of a spiral portion, the cross section of the tailless screw sleeve body is an asymmetric profile surface which increases friction by increasing the contact area with the inner wall of a mounting screw hole, the outer diameter of the beginning portion is gradually increased from a free end to a connection end, the surface radius of the profile surface in contact with the mounting screw hole is R1, the surface radius away from the mounting screw hole is R2, and R1<R2; a frame, a workbench is installed on the top of the frame; and a driving component, comprising a mounting plate installed on the surface of the workbench by bolts and a motor installed inside the mounting plate; the tailless screw sleeve can protect the mounting screw hole, increase the friction with the inner wall of the mounting screw hole, and reduce the risk of the screw sleeve falling off, and the tailless screw sleeve production equipment has a wide range of applications, fast subsequent material unloading speed and high efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of screw sleeve production, in particular to production equipment for a tailless screw sleeve. Background Art

[0002] Wire thread insert is a new type of internal thread fastener, suitable for threaded connection, screwed into and fastened in the threaded hole of one of the connected parts to form a standard internal thread, into which the bolt (or screw) is screwed, also known as threaded thread insert, or simply thread insert, mainly used to enhance and protect the internal thread of low-strength material. The principle is to form an elastic connection between the screw and the thread inside the base, eliminate thread manufacturing errors, and improve the connection strength. It has the functions of high connection strength, earthquake resistance, impact resistance and wear resistance, and is widely used in electronic applications;

[0003] The screw sleeve is a spring-shaped internal and external threaded concentric body made of high-strength, high-precision, smooth-surfaced cold-rolled diamond-shaped stainless steel wire. It needs to be wound and formed using corresponding production equipment during production, with high production efficiency and good quality. For example, the existing public document CN206326064U-Quick Forming Machine for Tailed Steel Wire Screw Inserts discloses a screw sleeve forming device;

[0004] However, there are still certain shortcomings in actual use: first, the existing screw sleeve is a regular cylindrical setting, and both ends are not closed. During the installation process, the end of the screw sleeve will contact the inner wall of the threaded hole, causing damage to the thread. At the same time, the steel wire cross-section of the screw sleeve is symmetrically set, resulting in a small contact area between the outer wall of the screw sleeve and the inner wall of the threaded hole, low friction, and increased risk of the screw sleeve falling off; secondly, the existing screw sleeve production equipment is a traditional cylindrical zone winding screw sleeve when in use, and this method cannot adjust the length and type of the produced screw sleeve according to demand, and has a small scope of application. At the same time, after the screw sleeve is produced, the cross section of the screw sleeve is stuck in the wire clamping groove on the zone winder, resulting in poor stability and slow subsequent feeding speed, affecting production efficiency; therefore, it is necessary to improve the existing technology to solve the above technical problems. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the fact that the above-mentioned existing screw sleeves are set as regular cylindrical shapes and have no closing treatment on both ends, the ends of the screw sleeves will contact the inner wall of the threaded hole during installation, causing damage to the thread. At the same time, the steel wire cross-section of the screw sleeve is set symmetrically, resulting in a small contact area between the outer wall of the screw sleeve and the inner wall of the threaded hole, small friction, and increased risk of the screw sleeve falling off. A tailless screw sleeve is proposed.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a tailless screw sleeve, comprising a tailless screw sleeve body, the tailless screw sleeve body comprising a spiral portion, a starting portion and a tail portion integrally connected to the end of the spiral portion, a driving slot being arranged on the inner side wall of the starting portion, the cross-section of the tailless screw sleeve body being an asymmetric profile that increases friction by increasing the contact area with the inner wall of the mounting screw hole, the outer diameter of the starting portion being gradually increased from the free end to the connecting end, the surface radius of the profile contacting the mounting screw hole being R1, the surface radius away from the mounting screw hole being R2, and R1<R2.

[0008] The beneficial effects of the present invention are as follows: through the tailless screw sleeve body, firstly, an arc-shaped closing is set at the initial end of the tailless screw sleeve, thereby changing the original installation method of the tailless screw sleeve, and utilizing the end diameter reducing technology to avoid the tailless screw sleeve body from hitting the inner wall of the installation threaded hole when being installed through the driving slot, thereby protecting the installation threaded hole; secondly, the outer diameter of the tailless screw sleeve body adopts GJB instead of the traditional GB small size, thereby improving the threaded connection force of the tailless screw sleeve body and reducing the risk of the tailless screw sleeve body falling off during use; finally, the profile of the tailless screw sleeve body adopts an asymmetric profile, wherein the traditional screw sleeve cross section is symmetrically arranged, thereby increasing the contact area between the tailless screw sleeve body and the threaded tooth profile surface in the installation threaded hole, improving the friction force, and further reducing the risk of the screw sleeve falling off.

[0009] In view of the fact that the existing screw sleeve production equipment cannot adjust the length and type of the produced screw sleeve according to demand, has a small scope of application, and has a slow subsequent feeding speed, which affects the production efficiency, a further improvement of a tailless screw sleeve is proposed.

[0010] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a tailless screw sleeve production device; and,

[0011] A frame, a workbench is installed on the top of the frame, a wire feeding mechanism is arranged on one side of the upper surface of the workbench, a slotting mechanism is arranged on the front end of the upper surface of the workbench, and a cutting mechanism is arranged on one side of the bottom of the workbench; and,

[0012] The driving assembly comprises a mounting plate mounted on the workbench surface by bolts and a motor mounted inside the mounting plate. A first fixing frame is arranged in front of the mounting plate, and a sliding sleeve block is slidably connected inside the first fixing frame.

[0013] As a preferred solution of a tailless screw sleeve production equipment of the present invention, the output shaft of the motor passes through the bearing on the mounting plate and is connected to the threaded rod through a coupling, a driving pulley is sleeved on one side of the outer wall of the threaded rod, and the other end of the threaded rod passes through the bearing on the outer wall of the first fixed frame and the threaded hole on the sliding sleeve block in sequence and is connected to the bearing on the inner wall of the first fixed frame.

[0014] As a preferred solution of a tailless screw sleeve production equipment of the present invention, a movable shaft is rotatably connected in the upper bearing inside the sliding sleeve block, a spline shaft is fixedly provided at the center position of the rear end surface of the movable shaft, an annular groove is provided on one side of the outer wall of the movable shaft, arc grooves are symmetrically provided above and below the inner wall of one side of the annular groove, and a square groove is provided at the center position of the front end surface of the movable shaft.

[0015] As a preferred solution of a tailless screw insert production equipment of the present invention, a circular groove is arranged on the inner wall of the square groove, arc holes are symmetrically opened above and below the inner wall of the circular groove, a transmission shaft is arranged directly behind the movable shaft, a driven pulley is sleeved on one end of the outer wall of the transmission shaft, a spline groove is arranged at the center position of the front end surface of the transmission shaft, a zone reel is arranged in front of the movable shaft, and a square is fixedly arranged at the center position of the rear end surface of the zone reel.

[0016] As a preferred solution of a tailless screw sleeve production equipment of the present invention, wherein: embedding grooves are provided at the center positions of the outer walls on both sides of the block, a wire clamping hole is opened at one end of the inner part of the zone reel, a moving groove is provided at the center position of the front end surface of the zone reel, and a sliding groove is provided at the top of the moving groove; wherein, the external thread on the outer wall of the threaded rod is spirally matched with the internal thread in the wall of the threaded hole on the sliding sleeve block, the outer wall of the driving pulley and the outer wall of the driven pulley are connected by belt transmission, the spline shaft is slidably inserted in the inside of the spline groove, and the block is slidably inserted in the inside of the square groove.

[0017] As a preferred solution of a tailless screw sleeve production equipment of the present invention, it also includes an installation component arranged inside the annular groove, the installation component includes a swivel ring rotatably sleeved on the inner wall of the annular groove and an L-shaped clamping rod symmetrically arranged above and below the end surface of one side of the swivel, and a moving block is symmetrically fixed above and below the end surface of the other side of the swivel, and the internal sliding sleeve of the moving block is provided with a guide rod, and the outer wall of the guide rod is sleeved with a first spring; wherein the two ends of the guide rod are respectively fixed on the inner walls of adjacent arc grooves, and the first spring is located between the moving block and the inner wall of the arc groove.

[0018] As a preferred solution of the tailless screw insert production equipment of the present invention, it also includes a tail removal component arranged inside the movable groove, the tail removal component includes a pressing block slidably connected to the inner wall of the movable groove and a cutting knife installed on the top of the inner wall of the pressing block, a telescopic rod is installed at the center of the inner wall of the pressing block, and a second spring is sleeved on the outer wall of the telescopic rod; wherein the cutting knife is located inside the sliding groove, and the telescopic rod and the second spring are both located between the pressing block and the inner wall of the movable groove.

[0019] As a preferred solution of the tailless screw sleeve production equipment of the present invention, it also includes a top pressing assembly arranged on the upper surface of the workbench, the top pressing assembly includes a second fixed frame installed on the upper surface of the workbench and a sliding frame slidably connected to the inside of the second fixed frame, electromagnetic blocks are embedded in the middle of the inner walls on both sides of the second fixed frame, an iron block is embedded in the inner center position of the sliding frame, and a trapezoidal top plate is installed on the top of the sliding frame; wherein, there is magnetic attraction between the electromagnetic block and the iron block.

[0020] Another beneficial effect of the present invention is that by setting a driving component, an installation component, a tail removal component and a top pressing component, a single motor is used to drive the zone reel to rotate and move, so as to complete the production of the tailless screw sleeve body, reduce energy consumption, reduce equipment use, and reduce costs. Under the action of the elastic performance of the first spring, the L-shaped clamping rod is driven to rotate, and the limiting measures of the L-shaped clamping plate and the embedded groove on the block are realized or cancelled, which is convenient for staff to quickly disassemble and replace the zone reel. It is suitable for the production of screw sleeves of different lengths and types, and has a wide range of applications. The steel wire inserted into the clamping hole can be cut off by a cutting knife to realize the production of the tailless screw sleeve body. At the same time, it is convenient for rapid material unloading and has high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 The overall structure of the production equipment of the tailless screw sleeve in the present invention is shown in FIG. Figure 1 .

[0023] Figure 2 The overall structure of the production equipment of the tailless screw sleeve in the present invention is shown in FIG. Figure 2 .

[0024] Figure 3 It is a vertical cross-sectional view of the production equipment of the tailless screw sleeve in the present invention.

[0025] Figure 4 For the present invention Figure 1 The front view, side view and wire cross-section view of the tailless screw sleeve body in the structure.

[0026] Figure 5 For the present invention Figure 3 Schematic diagram of the structure of the drive components in the structure.

[0027] Figure 6 For the present invention Figure 5 Schematic diagram of the disassembled moving shaft, transmission shaft and zone scroll in the structure.

[0028] Figure 7 For the present invention Figure 6 Vertical section through the axis of motion in a structure.

[0029] Figure 8 For the present invention Figure 7 Schematic diagram of disassembly of moving axis and mounting components in the structure Figure 1 .

[0030] Fig. 9 For the present invention Figure 7 Schematic diagram of disassembly of moving axis and mounting components in the structure Figure 2 .

[0031] Fig.10 For the present invention Figure 6 Schematic diagram of the disassembly of the reel and tail removal components in the middle area of ​​the structure.

[0032] Fig.11 For the present invention Figure 3 Schematic diagram of the structure of the top pressure component.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 100, frame; 101, workbench; 102, wire feeding mechanism; 103, slotting mechanism; 104, cutting mechanism; 200, tailless screw sleeve body; 201, spiral part; 202, beginning; 202a, driving notch; 203, tail; 300, driving assembly; 301, mounting plate; 302, first fixed frame; 303, motor; 303a, threaded rod; 303b, driving pulley; 304, sliding sleeve block; 305, moving shaft; 305a, spline shaft; 305b, annular groove; 305c, arc groove; 305d, square groove; 305e, round groove; 305f, arc hole; 306, transmission shaft ; 306a, driven pulley; 306b, spline groove; 307, zone reel; 307a, block; 307b, embedded groove; 307c, wire clamping hole; 307d, movable groove; 307e, sliding groove; 400, mounting assembly; 401, swivel; 402, L-shaped clamping rod; 403, movable block; 404, guide rod; 405, first spring; 500, tail removal assembly; 501, pressure block; 502, cutting knife; 503, telescopic rod; 504, second spring; 600, top pressure assembly; 601, second fixed frame; 602, electromagnetic block; 603, sliding frame; 603a, iron block; 604, trapezoidal top plate. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0038] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example 1

[0039] Reference Figure 1 and Figure 4 , which is the first embodiment of the present invention, provides a tailless screw sleeve, which protects the inner wall of the installed threaded hole by setting an arc-shaped closing end at the initial end, and the surface of the tailless screw sleeve body 200 is an asymmetric surface, which can increase the friction between the inner wall of the threaded hole and reduce the risk of falling off.

[0040] Specifically, the tailless screw sleeve body 200 includes a spiral portion 201, a starting portion 202 and a tail portion 203 integrally connected to the end of the spiral portion 201, a driving slot 202a is provided on the inner side wall of the starting portion 202, and the cross-section of the tailless screw sleeve body 200 is an asymmetric surface that increases the friction by increasing the contact area with the inner wall of the mounting screw hole. The outer diameter of the starting portion 202 is gradually increased from the free end to the connecting end. The surface radius of the surface in contact with the mounting screw hole is R1, the surface radius away from the mounting screw hole is R2, and R1<R2.

[0041] When the above arrangement is in use, first, the tailless screw sleeve body 200 is produced by production equipment, and the tailless screw sleeve is in the shape of a spiral spring, and an arc-shaped closing is set at the initial end of the tailless screw sleeve, thereby changing the original installation method of the tailless screw sleeve, and using the end diameter reducing technology to avoid the tailless screw sleeve body 200 from hitting the inner wall of the mounting threaded hole when being installed through the driving slot 202a, thereby protecting the mounting threaded hole; secondly, the outer diameter of the tailless screw sleeve body 200 adopts GJB instead of the traditional GB small size, thereby improving the threaded connection force of the tailless screw sleeve body 200 and reducing the risk of the tailless screw sleeve body 200 falling off during use; finally, the profile of the tailless screw sleeve body 200 adopts an asymmetric profile, wherein the traditional screw sleeve cross section is symmetrically set, thereby increasing the contact area between the tailless screw sleeve body 200 and the threaded tooth profile surface in the mounting threaded hole, improving the friction force, and further reducing the risk of the screw sleeve falling off.

[0042] Furthermore, the drive slot 202a is arranged at the front end of the tailless screw sleeve body 200, which is convenient for using the installation tool to screw into the threaded hole during installation to achieve the installation of the wire screw sleeve. The surface of the tailless screw sleeve body 200 is an asymmetric surface setting, and the diameter on the outside is smaller than the inside diameter. Example 2

[0043] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 , which is the second embodiment of the present invention, is based on the previous embodiment, except that, in order to reduce energy consumption and reduce costs, the rotation and movement of the zone scroll 307 is achieved by a single motor 303.

[0044] Specifically, a frame 100, a workbench 101 is installed on the top of the frame 100, a wire feeding mechanism 102 is arranged on one side of the upper surface of the workbench 101, a slotting mechanism 103 is arranged on the front end of the upper surface of the workbench 101, and a cutting mechanism 104 is arranged on one side of the bottom of the workbench 101; and a driving component 300, including a mounting plate 301 mounted on the surface of the workbench 101 by bolts and a motor 303 mounted inside the mounting plate 301, a first fixed frame 302 is arranged in front of the mounting plate 301, and a sliding sleeve block 304 is slidably connected inside the first fixed frame 302; the motor The output shaft of 303 passes through the bearing on the mounting plate 301 and is connected to the threaded rod 303a through a coupling. A driving pulley 303b is sleeved on one side of the outer wall of the threaded rod 303a. The other end of the threaded rod 303a passes through the bearing on the outer wall of the first fixed frame 302 and the threaded hole on the sliding sleeve block 304 in sequence and is connected to the bearing on the inner wall of the first fixed frame 302; a moving shaft 305 is rotatably connected in the upper bearing inside the sliding sleeve block 304, a spline shaft 305a is fixed at the center of the rear end face of the moving shaft 305, an annular groove 305b is provided on one side of the outer wall of the moving shaft 305, and an inner wall of one side of the annular groove 305b is provided. Arc grooves 305c are symmetrically arranged on the upper and lower sides of the movable shaft 305, and a square groove 305d is arranged at the center of the front end face of the movable shaft 305; a circular groove 305e is arranged on the inner wall of the square groove 305d, and arc holes 305f are symmetrically opened above and below the inner wall of the circular groove 305e. A transmission shaft 306 is arranged directly behind the movable shaft 305, and a driven pulley 306a is sleeved on one end of the outer wall of the transmission shaft 306, and a spline groove 306b is arranged at the center of the front end face of the transmission shaft 306. A zone reel 307 is arranged in front of the movable shaft 305, and a square block 307a is fixed at the center of the rear end face of the zone reel 307; the square block 307a The center positions of the outer walls on both sides are provided with embedding grooves 307b, one end of the inner part of the zone reel 307 is provided with a wire clamping hole 307c, the center position of the front end surface of the zone reel 307 is provided with a moving groove 307d, and the top of the moving groove 307d is provided with a sliding groove 307e; wherein, the external thread on the outer wall of the threaded rod 303a is spirally matched with the internal thread in the wall of the threaded hole on the sliding sleeve block 304, the outer wall of the driving pulley 303b and the outer wall of the driven pulley 306a are connected by belt transmission, the spline shaft 305a is slidably inserted in the spline groove 306b, and the block 307a is slidably inserted in the square groove 305d;

[0045] When the above arrangement is used, the wire feeding mechanism 102 is first used to feed the steel wire used to produce the tailless screw sleeve, wherein the profile of the steel wire is an asymmetric profile produced in advance by a forming device, and the steel wire is fed by the wire feeding mechanism 102 to the wire clamping hole 307c on the zone reel 307, and then the driving notch 202a is opened on the surface of the steel wire under the action of the notching mechanism 103, and then the motor 303 is started, and the output shaft of the motor 303 rotates through the coupling to drive the threaded rod 303a and the driving pulley 303b on the outer wall thereof to rotate, and the external thread on the outer wall of the threaded rod 303a meshes with the internal thread in the wall of the threaded hole on the sliding sleeve block 304, and the driving pulley 303 The outer wall of b is connected to the outer wall of the driven pulley 306a through a belt, so the rotation of the active pulley 303b will drive the driven pulley 306a and the transmission shaft 306 on its inner wall to rotate, and when the transmission shaft 306 rotates, it will drive the zone reel 307 to rotate synchronously under the action of the spline shaft 305a, the spline groove 306b, and the movable shaft 305. At the same time, the rotation of the threaded rod 303a will drive the sliding sleeve block 304 to move in the first fixed frame 302, and drive the movable shaft 305 to move with the assistance of the spline shaft 305a and the spline groove 306b, so that the zone reel 307 can rotate and move, thereby realizing the zone winding production of the tailless screw sleeve body 200.

[0046] Furthermore, the wire feeding mechanism 102, the slotting mechanism 103, the cutting mechanism 104, etc. are all prior arts in the existing document "Publication No. CN206326064U-Tailed Wire Screw Insert Rapid Prototyping Machine", so they will not be elaborated here. When the motor 303 is driven, the threaded rod 303a and the transmission shaft 306 rotate synchronously under the action of the active pulley 303b, the driven pulley 306a and the belt. The rotation of the threaded rod 303a will drive the sliding sleeve block 304 to move, and the movable shaft 305 can be moved under the action of the spline shaft 305a and the spline groove 306b. Example 3

[0047] Reference Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 , which is the third embodiment of the present invention, is based on the previous embodiment, except that, in order to increase the scope of application, the position of the L-shaped clamping rod 402 is adjusted under the elastic performance of the first spring 405 to achieve or cancel the limitation of the zone scroll 307, and it can be disassembled, assembled and replaced.

[0048] Specifically, it also includes an installation component 400 arranged inside the annular groove 305b, the installation component 400 includes a swivel 401 rotatably sleeved on the inner wall of the annular groove 305b and an L-shaped clamping rod 402 symmetrically arranged above and below the end surface of one side of the swivel 401, and a moving block 403 is symmetrically fixed above and below the end surface of the other side of the swivel 401, and a guide rod 404 is slidably sleeved inside the moving block 403, and a first spring 405 is sleeved on the outer wall of the guide rod 404; wherein, the two ends of the guide rod 404 are respectively fixed on the inner walls of the adjacent arc-shaped grooves 305c, and the first spring 405 is located between the moving block 403 and the inner wall of the arc-shaped groove 305c; it also includes a tailing component 500 arranged inside the moving groove 307d, and the tailing component 500 includes a pressing block 501 slidably connected to the inner wall of the moving groove 307d and a pressing block 501 installed on the top of the inner wall of the pressing block 501 A cutting knife 502 is provided, a telescopic rod 503 is installed at the center of the inner wall of the pressing block 501, and a second spring 504 is sleeved on the outer wall of the telescopic rod 503; wherein the cutting knife 502 is located inside the sliding groove 307e, and the telescopic rod 503 and the second spring 504 are both located between the pressing block 501 and the inner wall of the movable groove 307d; it also includes a top pressing assembly 600 arranged on the upper surface of the workbench 101, and the top pressing assembly 600 includes a second fixed frame 601 installed on the upper surface of the workbench 101 and a sliding frame 603 slidably connected to the inside of the second fixed frame 601, and electromagnetic blocks 602 are embedded in the middle of the inner walls of both sides of the second fixed frame 601, and an iron block 603a is embedded in the inner center of the sliding frame 603, and a trapezoidal top plate 604 is installed on the top of the sliding frame 603; wherein the electromagnetic block 602 and the iron block 603a are attracted by magnetic force;

[0049] When the above arrangement is used, when it is necessary to adjust the length of the produced tailless screw sleeve body 200, force is applied to the swivel 401 to make it rotate counterclockwise along the inner wall of the annular groove 305b, and the force applied by the swivel 401 will drive the two L-shaped clamping rods 402 and the two sets of moving blocks 403 to rotate synchronously, and the moving blocks 403 will make an arc motion along the outer wall of the guide rod 404 and squeeze the first spring 405. At this time, the L-shaped clamping rod 402 will move out of the embedded groove 307b of the upper block 307a on the zone reel 307, thereby eliminating the To eliminate the limiting effect of the zone scroll 307, the zone scroll 307 can be removed and replaced. When replacing, the block 307a on the new zone scroll 307 is inserted into the square groove 305d, and then the force applied to the rotating ring 401 is stopped. At this time, the moving block 403 is rebounded to the initial position under the elastic performance of the first spring 405, so that the rotating ring 401 and the L-shaped clamping rod 402 rotate clockwise and are clamped into the embedded groove 307b on the block 307a, which plays a limiting role, and the disassembly and replacement are completed. , and then the tailless screw sleeve body 200 can be produced. After the tailless screw sleeve body 200 is produced, the position of the trapezoidal top plate 604 is adjusted according to the length of the zone reel 307. Under the magnetic force cooperation of the electromagnetic block 602 and the iron block 603a, the sliding frame 603 is slidably adjusted in the second fixed frame 601. When the zone reel 307 rolls the tailless screw sleeve body 200, it will continue to rotate and move toward the front end, and the pressing block 501 at the end of the zone reel 307 will press against the adjacent end surface of the trapezoidal top plate 604. As the zone reel 307 moves, the force on the pressing block 501 increases, thereby squeezing the telescopic rod 503 and the second spring 504 on the inside, and the cutting knife 502 on the pressing block 501 applies force to the steel wire inserted into the wire clamping hole 307c, separating it from the tailless screw sleeve body 200, thereby realizing the production of the tailless screw sleeve body 200. Therefore, the production equipment is suitable for the production of screw sleeves of different lengths and types, with a wide range of applications. After the tail of the screw sleeve is cut off, it is also convenient for quick material unloading, and the production efficiency is high.

[0050] Furthermore, the L-shaped clamping rod 402 passes through the arc hole 305f and is located inside the circular groove 305e. The rotating ring 401 can rotate on the inner wall of the annular groove 305b. The moving block 403 can slide along the outer wall of the guide rod 404 and squeeze the first spring 405. The telescopic rod 503 limits the second spring 504. Under the elastic performance of the second spring 504, the pressing block 501 and the cutting knife 502 are rebounded. Under the magnetic force cooperation of the electromagnetic block 602 and the iron block 603a, the sliding frame 603 can move along the inside of the second fixed frame 601. The position of the trapezoidal top plate 604 is adjusted accordingly according to the length of the zone scroll 307.

[0051] In addition, it should be noted that the components not described in detail in this article are prior art.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of a plurality of parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0053] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0054] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A production equipment for a tailless screw insert, used for the production of a tailless screw insert, characterized in that: include, A frame (100), wherein a workbench (101) is installed on the top of the frame (100), a wire feeding mechanism (102) is provided on one side of the upper surface of the workbench (101), a slotting mechanism (103) is provided at the front end of the upper surface of the workbench (101), and a cutting mechanism (104) is provided on one side of the bottom of the workbench (101); The tailless screw insert comprises a tailless screw insert body (200), the tailless screw insert body (200) comprising a spiral portion (201), a starting portion (202) and a tail portion (203) integrally connected to the end of the spiral portion (201), a driving notch (202a) being provided on the inner side wall of the starting portion (202), the cross section of the tailless screw insert body (200) being an asymmetric profile that increases friction by increasing the contact area with the inner wall of the mounting screw hole, the outer diameter of the starting portion (202) being gradually increased from the free end to the connection end, the surface radius of the profile contacting the mounting screw hole being R1, the surface radius away from the mounting screw hole being R2, and R1<R2; The driving assembly (300) comprises a mounting plate (301) mounted on the surface of the workbench (101) by means of bolts and a motor (303) mounted inside the mounting plate (301); a first fixed frame (302) is arranged in front of the mounting plate (301); a sliding sleeve (304) is slidably connected inside the first fixed frame (302); an output shaft of the motor (303) passes through a bearing on the mounting plate (301) and is connected to a threaded rod (303a) through a coupling; a driving pulley (303b) is sleeved on one side of an outer wall of the threaded rod (303a); the other end of the threaded rod (303a) passes through a bearing on the outer wall of the first fixed frame (302) and a threaded hole on the sliding sleeve (304) in sequence and is connected to a bearing on the inner wall of the first fixed frame (302); a moving shaft (305) is rotatably connected to the bearing on the upper inner side of the sliding sleeve (304); a rear end center position of the moving shaft (305) is fixed A spline shaft (305a) is provided, a transmission shaft (306) is provided directly behind the movable shaft (305), a driven pulley (306a) is sleeved on one end of the outer wall of the transmission shaft (306), a spline groove (306b) is provided at the center position of the front end surface of the transmission shaft (306), a zone reel (307) is provided in front of the movable shaft (305), a wire clamping hole (307c) is provided at one end of the inner side of the zone reel (307), and the front end of the zone reel (307) is provided with a plurality of spline grooves (306b). A moving groove (307d) is provided at the center of the surface, and a sliding groove (307e) is provided at the top of the moving groove (307d); wherein the external thread on the outer wall of the threaded rod (303a) is spirally matched with the internal thread in the wall of the threaded hole on the sliding sleeve (304); the outer wall of the driving pulley (303b) and the outer wall of the driven pulley (306a) are connected through a belt drive, and the spline shaft (305a) is slidably inserted into the interior of the spline groove (306b); The tail-removing assembly (500) comprises a pressing block (501) slidably connected to the inner wall of the movable groove (307d) and a cutting knife (502) installed at the top of the inner wall of the pressing block (501); a telescopic rod (503) is installed at the center of the inner wall of the pressing block (501); a second spring (504) is sleeved on the outer wall of the telescopic rod (503); the cutting knife (502) is located inside the sliding groove (307e); the telescopic rod (503) and the second spring (504) are both located between the pressing block (501) and the inner wall of the movable groove (307d); and, A top pressing assembly (600) comprises a second fixed frame (601) mounted on the upper surface of the workbench (101) and a sliding frame (603) slidably connected to the inside of the second fixed frame (601), electromagnetic blocks (602) are embedded in the middle of the inner walls on both sides of the second fixed frame (601), an iron block (603a) is embedded in the inner center of the sliding frame (603), and a trapezoidal top plate (604) is installed on the top of the sliding frame (603); There is magnetic attraction between the electromagnetic block (602) and the iron block (603a), and when the zone reel (307) moves, the trapezoidal top plate (604) can contact the pressing block (501) to push the cutting knife (502) to move along the inner wall of the sliding groove (307e) to achieve the effect of cutting off the tail of the tailless screw sleeve.

2. The production equipment of a tailless screw sleeve according to claim 1, characterized in that: An annular groove (305b) is provided on one side of the outer wall of the movable shaft (305), arc-shaped grooves (305c) are symmetrically provided above and below the inner wall of one side of the annular groove (305b), and a square groove (305d) is provided at the center of the front end surface of the movable shaft (305).

3. The production equipment of a tailless screw sleeve as claimed in claim 2, characterized in that: A circular groove (305e) is provided on the inner wall of the square groove (305d), arc-shaped holes (305f) are symmetrically opened above and below the inner wall of the circular groove (305e), and a square block (307a) is fixedly provided at the center of the rear end surface of the zone scroll (307).

4. The production equipment of a tailless screw sleeve as claimed in claim 3, characterized in that: The square block (307a) is slidably inserted into the interior of the square groove (305d), and embedding grooves (307b) are provided at the center positions of the outer walls on both sides of the square block (307a).

5. The production equipment of a tailless screw sleeve as claimed in claim 4, characterized in that: It also includes a mounting assembly (400) arranged inside the annular groove (305b), including a rotating ring (401) rotatably sleeved on the inner wall of the annular groove (305b) and an L-shaped clamping rod (402) symmetrically arranged above and below the end surface of one side of the rotating ring (401), and a moving block (403) symmetrically fixed above and below the end surface of the other side of the rotating ring (401), the inner sliding sleeve of the moving block (403) is provided with a guide rod (404), and the outer wall of the guide rod (404) is sleeved with a first spring (405).

6. The production equipment of a tailless screw sleeve according to claim 5, characterized in that: Both ends of the guide rod (404) are respectively fixed on the inner walls of the adjacent arc-shaped grooves (305c), and the first spring (405) is located between the moving block (403) and the inner wall of the arc-shaped groove (305c).

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