Pin shaft clamping mechanism

Abstract

The utility model discloses a pin shaft clamping mechanism which comprises a clamping module, a rotating module and a supporting plate. Wherein the rotating module comprises a protruding plate, the protruding plate is fixedly connected with a vertical plate, a center shaft at one end of a worm penetrates through and is movably connected with the protruding plate, the center shaft at one end of the worm is fixedly connected with the center of a first rotating disc, the worm is meshed with a worm wheel, and a cylinder shaft penetrates through and is fixedly connected with the center of the worm wheel. And the cylinder shaft penetrates through and is movably connected with the round hole. According to the pin shaft clamping device, a pin shaft needing to be clamped is placed between the L-shaped guide rods, the pin shaft is fixed through the L-shaped guide rods through the clamping module, the pin shaft is fixed and positioned, the jackscrew is screwed, the jackscrew abuts against and fixes the lead screw, the lead screw is prevented from rotating in the cylindrical shaft, the pin shaft is prevented from slipping, and the pin shaft can be clamped according to actual operation requirements. And through the rotating module, rotation of the pin shaft is achieved, and machining operation can be conveniently conducted on the pin shaft at all angles.

Description

Technical Field

[0001] The utility model relates to the technical field of pin clamping, in particular to a pin clamping mechanism. Background Art

[0002] A pin is a type of standardized fastener that can be used for both static fixed connections and relative movement with the connected parts. It is mainly used at the hinge joints of two parts to form a hinge connection. Pins are usually locked with split pins, which are reliable in operation and convenient for disassembly. There is no unified design standard for the pin structure. In the actual design of the pin structure, the pin structures designed by different models and designers vary greatly. When processing pins, it is often necessary to fix the pins to facilitate their processing.

[0003] The existing pin clamping mechanisms generally only simply clamp the pins, and the clamping parts are not suitable for pins of different specifications. Moreover, when processing the pins, the pins cannot be adjusted in angle according to the positions where processing is required, resulting in low practicability.

[0004] Therefore, it is necessary to provide a pin clamping mechanism to solve the above technical problems. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a pin clamping mechanism to solve the deficiencies existing in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pin clamping mechanism includes a clamping module, a rotating module, and a support plate.

[0008] Among them, the rotating module includes a convex plate. The convex plate is fixedly connected to a vertical plate. One end of the central axis of the worm passes through and is movably connected to the convex plate. One end of the central axis of the worm is fixedly connected to the center of a first turntable. The worm meshes with a worm gear. A cylindrical shaft passes through and is fixedly connected to the center of the worm gear. The cylindrical shaft passes through and is movably connected to a circular hole. The circular hole is arranged at the upper part of the vertical plate. The cylindrical shaft is fixedly connected to a cylinder.

[0009] The clamping module includes a slider. The outer sides of the slider are respectively hinge-connected to corresponding connecting rods by pins. One ends of a group of the connecting rods are respectively hinge-connected to corresponding L-shaped guide rods by pins. The shaft rods of a group of the L-shaped guide rods respectively pass through corresponding square grooves. A group of the square grooves are respectively arranged on the cylinder. The slider is threadedly connected to a lead screw. The lead screw passes through and is movably connected to the cylindrical shaft. One end of the lead screw is fixedly connected to the center of a second turntable. The cylindrical shaft is threadedly connected to a set screw.

[0010] Preferably, the vertical plate is fixedly connected to the support plate.

[0011] Preferably, the four corners of the support plate are respectively provided with corresponding mounting holes.

[0012] Preferably, one side of a group of the L-shaped guide rods is respectively fixed with corresponding anti-slip grooves.

[0013] Compared with the related art, the beneficial effects of the utility model are:

[0014] 1. Place the pin to be clamped between a set of L-shaped guide rods. Use the clamping module to fix the pin with a set of L-shaped guide rods to achieve fixed positioning of the pin. Screw on the top screw to tighten the screw rod to prevent the screw rod from rotating in the cylindrical shaft and the pin from slipping. According to actual operation needs, the rotation module can be used to rotate the pin to facilitate processing operations at various angles of the pin.

[0015] 2. The device is easy to operate and has strong practicality. One side of a set of L-shaped guide rods is respectively fixed with corresponding anti-skid patterns, so that when a set of L-shaped guide rods are used to clamp and fix the pin shaft, the set of anti-skid patterns can increase the friction force and make the pin shaft clamped more firmly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional schematic diagram of the utility model.

[0018] Figure 3 It is a schematic diagram of the connection structure of some parts of the utility model.

[0019] Figure 4 It is a schematic diagram of the connection structure of some parts of the utility model.

[0020] Figure 5 It is a schematic diagram of the connection structure of some parts of the utility model.

[0021] Figure 6 It is a schematic diagram of the connection structure of some parts of the utility model.

[0022] In the figure:

[0023] 1: Clamping module, 11, L-shaped guide rod, 12, connecting rod, 13, slider, 14, turntable 2, 15, screw rod, 17, anti-slip pattern, 18, square groove, 19, top screw;

[0024] 2: Rotation module, 21, cylinder, 22, cylinder shaft, 23, worm gear, 25, worm, 26, convex plate, 27, turntable 1, 28, round hole, 29, vertical plate;

[0025] 3: Support plate, 31, mounting hole. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0027] The first embodiment

[0028] A pin clamping mechanism includes a clamping module 1, a rotating module 2, and a support plate 3;

[0029] Among them, the rotating module 2 includes a convex plate 26. The convex plate 26 is fixedly connected to a vertical plate 29. One end of the central axis of the worm 25 passes through and is movably connected to the convex plate 26. One end of the central axis of the worm 25 is fixedly connected to the center of a first turntable 27. The worm 25 meshes with a worm gear 23. A cylindrical shaft 22 passes through and is fixedly connected to the center of the worm gear 23. The cylindrical shaft 22 passes through and is movably connected to a circular hole 28. The circular hole 28 is arranged at the upper part of the vertical plate 29. The cylindrical shaft 22 is fixedly connected to a cylinder 21;

[0030] The clamping module 1 includes a slider 13. The outer sides of the slider 13 are respectively hinge-connected to corresponding connecting rods 12 through pins. One ends of a group of the connecting rods 12 are respectively hinge-connected to corresponding L-shaped guide rods 11 through pins. The shaft rods of a group of the L-shaped guide rods 11 respectively pass through corresponding square grooves 18. A group of the square grooves 18 are respectively arranged on the cylinder 21. The slider 13 is threadedly connected to a lead screw 15. The lead screw 15 passes through and is movably connected to the cylindrical shaft 22. One end of the lead screw 15 is fixedly connected to the center of a second turntable 14. The cylindrical shaft 22 is threadedly connected to a set screw 19.

[0031] The vertical plate 29 is fixedly connected to the support plate 3.

[0032] Corresponding mounting holes 31 are respectively arranged at the four corners of the support plate 3.

[0033] Working principle: First, install the support plate 3 on the operating table through a group of bolts through the mounting holes 31. Place the pin to be clamped between a group of L-shaped guide rods 11. Loosen the set screw 19 and rotate the second turntable 14. The second turntable 14 drives the lead screw 15 to rotate. The lead screw 15 drives the slider 13 to slide. The slider 13 drives the corresponding connecting rods 12 to swing respectively. A group of the connecting rods 12 drive the corresponding L-shaped guide rods 11 to retract along the square grooves 18, so that a group of the L-shaped guide rods 11 fix the pin, realizing the fixed positioning of the pin. At this time, stop rotating the second turntable 14 and screw on the set screw 19 to make the set screw 19 tightly fix the lead screw 15, avoiding the rotation of the lead screw 15 in the cylindrical shaft 22 and avoiding the problem of the pin slipping off;

[0034] Next, according to the actual operation needs, rotate the first turntable 27. The first turntable 27 drives the worm 25 to rotate. The first worm 25 meshes with the worm gear 23 to rotate. The worm gear 23 drives the circular shaft cylinder 22 to rotate. The circular shaft cylinder 22 drives the cylinder 21 to rotate, so that the cylinder 21 drives the clamping module 1 to rotate, realizing the rotation of the pin shaft, and facilitating the machining operation of each angle of the pin shaft.

[0035] Beneficial effects: Place the pin shaft to be clamped between a group of L-shaped guide rods 11. Through the clamping module 1, a group of L-shaped guide rods 11 fix the pin shaft, realizing the fixed positioning of the pin shaft. Then screw on the setscrew 19 to tightly fix the setscrew 19 to the lead screw 15, avoiding the rotation of the lead screw 15 in the circular shaft cylinder 22 and preventing the pin shaft from slipping. According to the actual operation needs, through the rotation module 2, the rotation of the pin shaft is realized, facilitating the machining operation of each angle of the pin shaft.

[0036] Second Embodiment

[0037] This embodiment is a further elaboration on the basis of the first embodiment. Anti-slip patterns 17 are respectively and fixedly provided on one side of a group of the L-shaped guide rods 11.

[0038] Working principle: On the basis of the first embodiment, anti-slip patterns 17 are respectively and fixedly provided on one side of a group of L-shaped guide rods 11. When a group of L-shaped guide rods 11 clamp and fix the pin shaft, a group of anti-slip patterns 17 can increase the friction force, making the clamping of the pin shaft more stable.

[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A pin clamping mechanism, characterized in that, The pin clamping mechanism includes: a clamping module (1), a rotating module (2), and a support plate (3); Among them, the rotating module (2) includes a convex plate (26), the convex plate (26) is fixedly connected to a vertical plate (29), the central axis of one end of a worm (25) passes through and is movably connected to the convex plate (26), the central axis of one end of the worm (25) is fixedly connected to the center of a first turntable (27), the worm (25) meshes with a worm gear (23), a cylindrical shaft (22) passes through and is fixedly connected to the center of the worm gear (23), the cylindrical shaft (22) passes through and is movably connected to a circular hole (28), the circular hole (28) is arranged at the upper part of the vertical plate (29), and the cylindrical shaft (22) is fixedly connected to a cylinder (21); The clamping module (1) includes a slider (13), the outer sides of the slider (13) are respectively hinged to corresponding connecting rods (12) through pins, one ends of a group of the connecting rods (12) are respectively hinged to corresponding L-shaped guide rods (11) through pins, the shaft rods of a group of the L-shaped guide rods (11) respectively pass through corresponding square grooves (18), a group of the square grooves (18) are respectively arranged on the cylinder (21), the slider (13) is threadedly connected to a lead screw (15), the lead screw (15) passes through and is movably connected to the cylindrical shaft (22), one end of the lead screw (15) is fixedly connected to the center of a second turntable (14), and the cylindrical shaft (22) is threadedly connected to a set screw (19).

2. The pin clamping mechanism according to claim 1, wherein The vertical plate (29) is fixedly connected to the support plate (3).

3. The pin clamping mechanism according to claim 2, wherein Mounting holes (31) corresponding to each other are respectively arranged at the four corners of the support plate (3).

4. The pin clamping mechanism according to claim 1, characterized in that, Anti-slip lines (17) corresponding to each other are respectively fixedly arranged on one side of a group of the L-shaped guide rods (11).

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