Positioning mechanism for processing fastener

Abstract

The utility model provides a positioning mechanism for processing a fastener. The positioning mechanism is used for solving the problem that a positioning mechanism cannot quickly fix shaft parts. The positioning mechanism comprises a platform, one end of the platform is provided with a thread rolling machine, the platform is provided with a positioning device, the positioning device comprises a positioning frame, the positioning frame is connected with a V-shaped block and provided with a lifting rod, the bottom end of the lifting rod is connected with an adjusting plate, and the two ends of the bottom face of the adjusting plate are connected with fixing plates. The ends, away from each other, of the fixing plates abut against the bottom face of the adjusting plate through springs, a fixing rod is arranged on the positioning frame in a penetrating mode, the bottom end of the fixing rod is connected with a pressing block, a protruding block is arranged on the side wall of the fixing rod, the through hole is provided with an L-shaped sliding groove matched with the protruding block, the ends, close to each other, of the fixing plates abut against the pressing block, and arc-shaped friction faces are arranged on the bottom faces of the fixing ends. According to the utility model, through the matching of the convex block on the side wall of the fixing rod and the L-shaped sliding chute, the fixing rod can be quickly fixed or released, and the time for clamping and replacing shaft parts is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a thread rolling technical field, especially a kind of positioning mechanism of fastener processing. BACKGROUND

[0002] Fastener is a kind of part widely used in various mechanical connections, its use range spreads to energy, electronics, electric appliance, machinery, chemical industry, metallurgy, mould, hydraulic pressure and multiple industries. Thread rolling machine is a kind of multifunctional cold extrusion forming machine tool, it can carry out thread rolling, straight line, oblique line and other various forms of rolling processing to workpiece in cold state within its rolling force range, and then process the thread on fastener. In the fastener processing process, positioning mechanism is the key equipment to ensure the stability and accuracy of shaft parts in the processing process. The existing positioning mechanism usually adopts fixed bolt and fixed part cooperation to clamp shaft parts, this way is not only cumbersome to operate, but also makes the time of clamping and replacing parts longer, which affects the overall production efficiency, and when fixed by bolt, fixed bolt can be loosened or displaced due to external force or vibration, leading to processing failure or part damage. SUMMARY

[0003] The utility model provides a kind of positioning mechanism of fastener processing, solve the problem that positioning mechanism cannot quickly fix shaft parts in prior art.

[0004] The technical scheme of the utility model is realized as follows:

[0005] A kind of positioning mechanism of fastener processing, including platform, the one end of platform is equipped with thread rolling machine, platform is equipped with positioning device, positioning device includes door-shaped positioning frame, the bottom end of positioning frame is connected with V-shaped block, the upper end of positioning frame is equipped with lifting rod, the end close to V-shaped block of lifting rod is connected with adjusting plate, the bottom surface of adjusting plate is hinged with fixed plate by hinged rod at both ends, the end of fixed plate away from each other is reset end, reset end is all abutted with the bottom surface of adjusting plate by spring, fixed rod is arranged on positioning frame, the bottom end of fixed rod passes through the hole and penetrates adjusting plate, the bottom end of fixed rod is connected with pressure block, pressure block is placed between adjusting plate and fixed plate, the side wall of fixed rod is equipped with lug, the inner side wall of hole is equipped with L-shaped sliding groove, lug slides along sliding groove, the end of fixed plate close to each other is fixed end, the top surface of fixed end is abutted with pressure block, the bottom surface of fixed end is all equipped with arc friction surface.

[0006] Further, the two sides of the V-shaped block are equipped with sliding block, the inner side of the positioning frame is vertically equipped with sliding groove, the sliding block slides along the sliding groove, the bottom of the V-shaped block is equipped with accommodating cavity, the accommodating cavity is detachably connected with shell, the shell is equipped with screw rod elevator, the telescopic end of the screw rod elevator is abutted with platform. The cooperation of sliding groove and sliding block limits the moving direction of V-shaped block, ensures the stability of V-shaped block in lifting process.

[0007] Further, the platform is provided with sliding rails, and the positioning frame is away from or close to the thread rolling machine through the sliding rails. The positioning frame can be quickly and accurately moved through the setting of the sliding rails, thereby reducing the time for manual adjustment or carrying of the shaft parts.

[0008] Further, the sliding rails include first and second sliding rails arranged in line, and the positioning device includes first and second positioning devices, the first positioning device being arranged on the first sliding rail and the second positioning device being arranged on the second sliding rail. The operator only needs to control the movement and fixation of the positioning device to realize the processing of multi-section threads, thereby improving the ease and efficiency of work and reducing the labor intensity of the operator.

[0009] Further, the side wall of the positioning frame is screwed with a bolt, and the small end of the bolt can abut against the sliding rail. The positioning frame is fixed through the bolt, thereby reducing the processing error caused by shaking and improving the accuracy and consistency of thread processing.

[0010] Further, the pressing block is threadedly connected with the bottom end of the fixing rod. The design of the threaded connection allows the operator to adjust the position of the fixing rod in a fine increment, thereby realizing the accurate control of the position of the friction surface and improving the processing precision and product quality.

[0011] The technical scheme can produce the beneficial effects that: the V-shaped block contacts the shaft part, and the arc-shaped friction surface on the bottom surface of the fixing plate tightly contacts the shaft part, thereby realizing the multi-point stable fixation of the shaft part, improving the accuracy of positioning, enhancing the stability of the part in the processing process, and helping to ensure the processing quality. The convex block on the side wall of the fixing rod and the L-shaped sliding groove can be matched to quickly fix or release the fixing rod, thereby reducing the time for clamping and replacing the shaft part and improving the overall production efficiency. The V-shaped block allows the shaft part to be self-adaptively centered, and the arc-shaped friction surface of the fixing plate increases the contact area and friction force with the shaft part, thereby improving the stability of fixation. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1 It is a schematic view of the three-dimensional structure of the present application;

[0014] Figure 2 It is a sectional view of the positioning device.

[0015] Figure 3 isometric view of the explosion at the positioning device;

[0016] Figure 4 isometric view of the explosion at the fixing plate;

[0017] Figure 5 is a schematic view of the exploded sectional structure in Figure 4

[0018] Figure 6 is a schematic view of the enlarged detail at A in Figure 5

[0019] Wherein: 1, platform, 2, thread rolling machine, 3, positioning frame, 4, V-shaped block, 5, lifting rod, 6, adjusting plate, 7, fixing plate, 8, recovery end, 9, spring, 10, fixed rod, 11, through hole, 12, pressing block, 13, protruding block, 14, sliding groove, 15, fixed end, 16, friction surface, 17, sliding block, 18, sliding groove, 19, accommodating cavity, 20, shell, 21, screw rod elevator, 22, sliding rail, 23, first sliding rail, 24, second sliding rail, 25, bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0021] As Figures 1-6 ​​The utility model provides a kind of positioning mechanism of fastener processing, including platform 1, the one end of platform 1 is equipped with thread rolling machine 2, positioning device is equipped on platform 1, positioning device includes door-shaped locating frame 3, the bottom end of locating frame 3 is connected with V-shaped block 4, the upper end of locating frame 3 is equipped with lifting rod 5, one end of lifting rod 5 close to V-shaped block 4 is connected with adjusting plate 6, both ends of adjusting plate 6 bottom surface are hinged with fixed plate 7 by hinged rod, the end of fixed plate 7 mutually far away is recovery end 8, recovery end 8 is all abutted with the bottom surface of adjusting plate 6 by spring 9, fixed rod 10 is worn on locating frame 3, the bottom end of fixed rod 10 is passed through the hole 11 and is penetrated adjusting plate 6, the bottom end of fixed rod 10 is connected with pressure block 12, pressure block 12 is placed between adjusting plate 6 and fixed plate 7, the lateral wall of fixed rod 10 is equipped with lug 13, the inner lateral wall of hole 11 is equipped with L-shaped sliding slot 14, lug 13 slides along sliding slot 14, the end of fixed plate 7 mutually close is fixed end 15, pressure block 12 is abutted with the top surface of fixed end 15, the bottom surface of fixed end 15 is all equipped with arc friction surface 16.The lifting rod 5 is prior art such as screw rod, cylinder or hydraulic cylinder.The thread rolling machine 2 is prior art.

[0022] In use, the shaft parts to be processed are placed on the V-shaped groove of the V-shaped block 4, and then the fixed rod 10 is pressed and rotated, so that the lug 13 on the lateral wall of the fixed rod 10 is placed at the end of the sliding slot 14. The cooperation of the sliding slot 14 and the lug 13 limits the up-down movement of the fixed rod 10. In the process of pressing down, the fixed end 15 of the fixed plate 7 is pushed downward by the pressure block 12, and at the same time, the recovery end 8 of the fixed plate 7 compresses the spring 9. Then, the height of the lifting rod 5 is adjusted, so that the lifting rod 5 drives the fixed plate 7 to move downward. The downward movement of the fixed plate 7 makes the friction surface 16 tightly contact with the shaft parts, so as to achieve the effect of stably fixing the shaft parts. By adjusting the height of the lifting rod 5, the positioning mechanism can adapt to shaft parts of different sizes, and the universality and flexibility of the positioning mechanism are improved. When it is necessary to move or replace the shaft parts, the fixed rod 10 is rotated, so that the lug 13 of the fixed rod 10 is separated from the sliding slot 14. At this time, under the elastic force of the spring 9, the recovery end 8 moves away from the adjusting plate 6, and at the same time, the fixed end 15 moves away from the shaft parts, so that the shaft parts are unfixed, and the shaft parts can be moved. The function of quickly fixing and releasing the shaft parts is realized, and the work efficiency is improved. The arc friction surface 16 can increase the friction force between the fixed plate 7 and the shaft parts, and the shaft parts can be more stably fixed.

[0023] As Figure 2 , 3As shown, the V-shaped block 4 is provided with a sliding block 17 on both sides, and the inner side of the positioning frame 3 is vertically provided with a sliding groove 18, the sliding block 17 slides along the sliding groove 18, the bottom of the V-shaped block 4 is provided with a receiving cavity 19, and the receiving cavity 19 is detachably connected with a shell 20, the shell 20 is provided with a screw rod lifter 21, and the telescopic end of the screw rod lifter 21 is in abutment with the platform 1. The screw rod lifter 21 is a prior art.

[0024] In use, the screw rod lifter 21 can drive the V-shaped block 4 to lift through the shell 20 and the receiving cavity 19, and the lifted V-shaped block 4 can adjust the center line height of the shaft part, thereby improving the versatility of the positioning mechanism, so that the same set of positioning mechanism can be used for machining shaft parts of various specifications. The sliding groove 18 and the sliding block 17 can limit the movement direction of the V-shaped block 4, preventing unnecessary deviation or shaking of the V-shaped block 4 during machining, thereby improving machining accuracy. Meanwhile, after the V-shaped block 4 is worn, the V-shaped block 4 can be pulled out, facilitating disassembly of the V-shaped block 4. By setting the detachably connected shell 20 and the receiving cavity 19, the V-shaped block 4 and the screw rod lifter 21 can be modularized, ensuring that the V-shaped block 4 and the screw rod lifter 21 can be conveniently disassembled and replaced after wear or damage.

[0025] As shown in Figure 1 , the platform 1 is provided with a sliding rail 22, and the positioning frame 3 is away from or close to the thread rolling machine 2 through the sliding rail 22. By setting the sliding rail 22, the positioning frame 3 can be quickly moved, and the movement of the shaft part can be directly driven by the positioning frame 3, so that the shaft part quickly approaches or moves away from the thread rolling machine 2, thereby adjusting the relative position of the shaft part and the thread rolling machine 2, and facilitating the machining requirements of threads of different lengths.

[0026] As shown in Figure 1 , the sliding rail 22 includes a first sliding rail 23 and a second sliding rail 24, and the first sliding rail 23 and the second sliding rail 24 are arranged in line. The positioning device includes a first positioning device and a second positioning device, the first positioning device is arranged on the first sliding rail 23, and the second positioning device is arranged on the second sliding rail 24. After a section of thread is machined, the second positioning device releases the shaft part, moves away from the thread rolling machine 2 through the second sliding rail 24, and fixes the shaft part after moving to a suitable position. Then the first positioning device releases the shaft part and moves away from the thread rolling machine 2 through the first sliding rail 23, and fixes the shaft part after moving to a suitable position. At this time, the shaft part can be fed to realize continuous machining of multiple sections of threads of the shaft part, and the first positioning device and the second positioning device alternately move and fix the shaft part, which can prevent errors caused by moving the shaft part, thereby improving the consistency of thread machining. Through the two positioning devices, the shaft part can be kept horizontal, avoiding machining errors caused by tilting or shaking of the part.

[0027] As shown in Figure 1 , 2 , the side wall of the positioning frame 3 is screwed with a bolt 25, and the small end of the bolt 25 can abut against the slide rail 22. By abutting the bolt 25 against the slide rail 22, the positioning frame 3 can be fixed by using the friction between the bolt 25 and the slide rail 22, preventing the outer frame from shaking during the rolling process, and ensuring the smooth progress of the machining process. The method of fixing the slide rail 22 by using the bolt 25 is simple and fast, so that the operator can easily complete the installation and adjustment work.

[0028] As shown in Figures 3-6 , the pressing block 12 and the bottom end of the fixed rod 10 are connected by screwing. When the friction surface 16 is thinned due to wear, the length of the fixed rod 10 can be extended by rotating the screwed pressing block 12, so as to increase the distance between the friction surface 16 and the fixed plate 7, thereby compensating for the wear amount, ensuring that the friction surface 16 always maintains stable contact with the shaft part, and avoiding the problem of inaccurate positioning or loosening caused by wear of the friction surface 16.

[0029] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning mechanism for processing fasteners, comprising a platform (1), one end of the platform (1) being provided with a thread rolling machine (2), characterized in that: The platform (1) is provided with a positioning device, the positioning device comprises a door-shaped positioning frame (3), the bottom end of the positioning frame (3) is connected with a V-shaped block (4), the upper end of the positioning frame (3) is provided with a lifting rod (5), one end of the lifting rod (5) close to the V-shaped block (4) is connected with an adjusting plate (6), both ends of the bottom surface of the adjusting plate (6) are hingedly connected with fixed plates (7) through hinged rods, the ends of the fixed plates (7) away from each other are reset ends (8), the reset ends (8) are abutted with the bottom surface of the adjusting plate (6) through springs (9), a fixed rod (10) is arranged on the positioning frame (3), the bottom end of the fixed rod (10) penetrates through the adjusting plate (6) through a through hole (11), the bottom end of the fixed rod (10) is connected with a pressing block (12), the pressing block (12) is arranged between the adjusting plate (6) and the fixed plates (7), the side wall of the fixed rod (10) is provided with a protrusion (13), the inner side wall of the through hole (11) is provided with an L-shaped sliding groove (14), the protrusion (13) slides along the sliding groove (14), the ends of the fixed plates (7) close to each other are fixed ends (15), the pressing block (12) is abutted with the top surface of the fixed ends (15), the bottom surface of the fixed ends (15) is provided with an arc-shaped friction surface (16).

2. A positioning mechanism for machining fasteners according to claim 1, characterized in that: Both sides of the V-shaped block (4) are provided with sliding blocks (17), the inner side of the positioning frame (3) is vertically provided with sliding grooves (18), the sliding blocks (17) slide along the sliding grooves (18), the bottom of the V-shaped block (4) is provided with a receiving cavity (19), the receiving cavity (19) is detachably connected with a shell (20), the shell (20) is provided with a screw rod elevator (21), the telescopic end of the screw rod elevator (21) is abutted with the platform (1).

3. A positioning mechanism for machining fasteners according to claim 1, wherein: The platform (1) is provided with sliding rails (22), the positioning frame (3) is away from or close to the thread rolling machine (2) through the sliding rails (22).

4. A positioning mechanism for machining fasteners according to claim 3, wherein: The sliding rails (22) comprise first sliding rails (23) and second sliding rails (24), the first sliding rails (23) and the second sliding rails (24) are arranged in line, the positioning device comprises first positioning devices and second positioning devices, the first positioning devices are arranged on the first sliding rails (23), and the second positioning devices are arranged on the second sliding rails (24).

5. A positioning mechanism for machining fasteners according to claim 3, wherein: The side wall of the positioning frame (3) is screwed with a bolt (25), the small end of the bolt (25) can be abutted with the sliding rails (22).

6. A positioning mechanism for machining fasteners according to claim 1, wherein: The pressing block (12) and the bottom end of the fixed rod (10) are connected through threads.

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