A screw locking device for a hollow shaft type precision component

Abstract

The utility model relates to the technical field of locking, and disclose a hollow shaft class precision part's screwing locking device, it includes annular disc, one side fixed mounting of annular disc has plum blossom type center locking post, plum blossom type center locking post's outside rotationally connected has circular ring, the inboard of circular ring is provided with arc locking block, the outside of circular ring is provided with rectangular groove, the inside of rectangular groove is provided with the wrench of adaptation, the one side of annular disc is equipped with component body, component body is located between plum blossom type center locking post and arc locking block, the one side of annular disc sets up limit mechanism, the utility model clamps and dismantles very simply, will not cause the damage of fixed ware, has improved work efficiency, also can effectively prevent loosening, ensure locking firm and reliable, even under the vibration environment also can keep stable locking state.

Description

TECHNICAL FIELD

[0001] The utility model belongs to locking technical field, concretely is a kind of hollow shaft class precision component's screwing locking device. BACKGROUND

[0002] In the field of precision machinery manufacturing, industry, etc., it is often necessary to accurately screw and lock the hollow shaft class precision component.

[0003] The traditional clamping mode is easy to cause damage, and the operation is complicated. It is very troublesome to clamp, fix and disassemble, which leads to low processing efficiency, and lacks effective anti-loose measures. In the vibration environment, it is easy to loosen due to thread gap, which affects the stability of connection. UTILITY MODEL CONTENT

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a hollow shaft class precision component's screwing locking device, which effectively solves the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a hollow shaft class precision component's screwing locking device, comprising an annular disc, a side of the annular disc is fixedly installed with a plum blossom type center locking column, the outer side of plum blossom type center locking column is rotatably connected with a circular ring, the inner side of circular ring is provided with arc locking block, the outer side of circular ring is provided with rectangular groove, the inside of rectangular groove is provided with matching wrench, a side of annular disc is provided with component body, component body is located between plum blossom type center locking column and arc locking block, a side of annular disc is provided with limiting mechanism. The limiting mechanism comprises a support block fixedly installed on one side of the annular disc, connecting plates are fixedly installed on both sides of the support block, and positioning rods are slidably arranged in the connecting plates.

[0006] Preferably, the same horizontal plate is fixedly installed on the side of the two positioning rods away from the annular disc, a pull rod is fixedly installed on one side of the horizontal plate, a push rod is arranged on one side of the pull rod, and the push rod is movably penetrated through the pull rod and the horizontal plate and is fixedly connected with an inclined block.

[0007] Preferably, the same limiting rod is fixedly connected to the side corresponding to the two positioning rods, L-shaped clamping plates are movably sleeved on both sides of the limiting rod, and a clamping groove matched with the L-shaped clamping plate is formed in one side of the connecting plate.

[0008] Preferably, a rectangular plate is fixedly installed on one side of each of the two L-shaped clamping plates, and a bevel is formed in the side corresponding to the two rectangular plates.

[0009] Preferably, one side of the L-shaped clamping plate is fixedly connected with a spring, and the side, away from the L-shaped clamping plate, of the spring is fixedly connected with one side of the positioning rod.

[0010] Preferably, the side of the annular ring is provided with annular equidistant positioning grooves matched with the positioning rods.

[0011] Compared with the prior art, the utility model has the beneficial effects that: 1、 the utility model discloses a component body is clamped between the plum blossom type center locking column and the arc locking block, then the wrench is screwed through the rectangular groove and drives the annular ring to rotate, the annular ring drives the arc locking block to rotate and locks the inside and outside of the component body with the plum blossom type center locking column to realize horizontal clamping and positioning of the whole component, and the clamping and dismounting are very simple, do not cause the damage of the fastener, improve work efficiency. 2、 the novel is pressed and drives the inclined block to move to one side, the inclined block drives the rectangular plate to move away from each other through the matched inclined surface, the rectangular plate drives the L-shaped clamping plate to move away from each other, and the spring is compressed when one end of the L-shaped clamping plate is away from the clamping groove, and the pull rod is pulled to one side, the pull rod drives the positioning rod to move to one side through the horizontal plate, the positioning rod is away from the annular ring, the annular ring can be positioned, the loosening is effectively prevented, the locking is firm and reliable, and even in the vibration environment, the stable locking state can be kept. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings are used to provide further understanding of the utility model and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation to the utility model.

[0013] In the drawings: Figure 1 It is the overall structure schematic view of the utility model; Figure 2 It is the partial structure schematic view of the utility model; Figure 3 It is the partial structure sectional view of the utility model; Figure 4 It is the limiting mechanism structure schematic view of the utility model; Figure 5 It is the structure of the utility model Figure 4 It is the structure enlarged view of A of the utility model; Figure 6 It is the arc locking block structure schematic view of the utility model; Figure 7 It is the L-shaped clamping plate structure schematic view of the utility model; In the figure: 1, annular disc; 2, circular ring; 3, wrench; 4, component body; 5, key-shaped center locking column; 6, limiting mechanism; 601, supporting block; 602, connecting plate; 603, positioning rod; 604, cross plate; 605, limiting rod; 606, pull rod; 607, L-shaped clamping plate; 608, spring; 609, clamping groove; 610, push rod; 611, inclined block; 612, rectangular plate; 613, inclined surface; 7, positioning groove; 8, arc-shaped locking block; 9, rectangular groove. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0015] Embodiment one, by Figures 1-7 The utility model discloses a key-shaped center locking column 5 is rotatably connected to the outside of the key-shaped center locking column 5, the inside of the circular ring 2 is provided with the arc-shaped locking block 8, the outside of the circular ring 2 is provided with the rectangular groove 9, the inside of the rectangular groove 9 is provided with the wrench 3 that is matched, one side of the annular disc 1 is equipped with the component body 4, the component body 4 is located between the key-shaped center locking column 5 and the arc-shaped locking block 8, one side of the annular disc 1 is provided with the limiting mechanism 6. The limiting mechanism 6 includes the supporting block 601 fixedly installed on one side of the annular disc 1, the connecting plate 602 is fixedly installed on both sides of the supporting block 601, the positioning rod 603 is slidably arranged in the inside of the connecting plate 602, and the positioning rod 603 is movably penetrated through the annular disc 1 on one side and extends to the inside of the circular ring 2.

[0016] The same cross plate 604 is fixedly installed on the side, away from the annular disc 1, of the two positioning rods 603, the pull rod 606 is fixedly installed on one side of the cross plate 604, the push rod 610 is arranged on one side of the pull rod 606, the inclined block 611 is movably penetrated through the pull rod 606 and the cross plate 604 on one side of the push rod 610 and is fixedly connected, the same limiting rod 605 is fixedly connected on the side corresponding to the two positioning rods 603, the L-shaped clamping plate 607 is movably sleeved on both sides of the limiting rod 605, and the clamping groove 609 matched with the L-shaped clamping plate 607 is penetrated and arranged on one side of the connecting plate 602.

[0017] Limiting rods 605 are fixedly installed on one side of the two positioning rods 603 respectively. The limiting rods 605 and the positioning rods 603 intersect perpendicularly to form a stable frame structure. L-shaped clamping plates 607 are movably sleeved on both sides of the limiting rods 605. The L-shaped clamping plates 607 are L-shaped, and their horizontal sections have sliding holes that are adapted to the limiting rods 605, which can slide along the axial direction of the limiting rods 605. The vertical section at the end is designed as a hook-shaped structure for cooperating with the slot 609.

[0018] A rectangular plate 612 is fixedly installed on one side of each of the two L-shaped clamping plates 607. An inclined surface 613 is opened on the corresponding side of each of the two rectangular plates 612. The two inclined surfaces 613 are adapted to the two sides of the inclined block 611. A spring 608 is fixedly connected to one side of the L-shaped clamping plate 607. The side of the spring 608 away from the L-shaped clamping plate 607 is fixedly connected to one side of the positioning rod 603. The spring 608 is sleeved on the outside of the limiting rod 605. An annularly distributed positioning groove 7 adapted to the positioning rod 603 is opened on one side of the ring 2.

[0019] Spring 608 is sleeved on the outside of limiting rod 605. Limiting rod 605 plays an effective guiding and limiting role for spring 608. It can prevent spring 608 from shifting or twisting laterally during extension and retraction, and ensure that spring 608 always deforms in the predetermined direction. This ensures that spring 608 can stably perform its elastic reset function, so that L-shaped plate 607 can return to its initial position in time after being subjected to force, and maintain the normal operation of the entire structure.

[0020] Working principle: In use, pressing the push rod 610 moves the inclined block 611 to one side. The inclined block 611, through the matching inclined surface 613, moves the rectangular plate 612 away from each other. The rectangular plate 612 moves the L-shaped clamping plate 607 away from each other, while simultaneously compressing the spring 608. When one end of the L-shaped clamping plate 607 moves away from the clamping slot 609, the pull rod 606 is pulled to one side. The pull rod 606, through the horizontal plate 604, moves the positioning rod 603 to one side, causing the positioning rod 603 to move to one side. 3. Move away from the ring 2 and clamp the component body 4 between the plum blossom-shaped central locking post 5 and the arc-shaped locking block 8. Then, turn the wrench 3 to drive the ring 2 to rotate through the rectangular groove 9. The ring 2 drives the arc-shaped locking block 8 to rotate and lock the inside and outside of the component body 4 with the plum blossom-shaped central locking post 5, thereby achieving horizontal clamping and positioning of the entire component. Then, reset the positioning rod 603 so that the positioning rod 603 extends into the matching positioning groove 7 on the ring 2, thereby limiting the arc-shaped locking block 8.

Claims

1. A screw locking device for hollow shaft type precision parts, comprising a ring-shaped disc (1), characterized in that: A plum blossom-shaped central locking pin (5) is fixedly installed on one side of the annular disk (1). A circular ring (2) is rotatably connected to the outer side of the plum blossom-shaped central locking pin (5). An arc-shaped locking block (8) is provided on the inner side of the circular ring (2). A rectangular groove (9) is opened on the outer side of the circular ring (2). A matching wrench (3) is provided inside the rectangular groove (9). A component body (4) is provided on one side of the annular disk (1). The component body (4) is located between the plum blossom-shaped central locking pin (5) and the arc-shaped locking block (8). A limit mechanism (6) is provided on one side of the annular disk (1). The limiting mechanism (6) includes a support block (601) fixedly installed on one side of the annular disk (1). Both sides of the support block (601) are fixedly installed with connecting plates (602). A positioning rod (603) is slidably arranged inside the connecting plate (602). One side of the positioning rod (603) moves through the annular disk (1) and extends into the interior of the ring (2).

2. A screw locking device for a hollow shaft type precision component according to claim 1, characterized in that: The two positioning rods (603) are fixedly installed on the side away from the annular disk (1) with the same horizontal plate (604). A pull rod (606) is fixedly installed on one side of the horizontal plate (604). A push rod (610) is provided on one side of the pull rod (606). One side of the push rod (610) movably passes through the pull rod (606) and the horizontal plate (604) and is fixedly connected to an inclined block (611).

3. The screw locking device for a hollow shaft precision component according to claim 1, characterized in that: The two positioning rods (603) are fixedly connected to the same limiting rod (605) on their corresponding sides. Both sides of the limiting rod (605) are movably fitted with L-shaped clamping plates (607). A slot (609) adapted to the L-shaped clamping plate (607) is opened through one side of the connecting plate (602).

4. The screw locking device for a hollow shaft precision component according to claim 3, characterized in that: A rectangular plate (612) is fixedly installed on one side of each of the two L-shaped plates (607). An inclined surface (613) is opened on the corresponding side of each of the two rectangular plates (612). The two inclined surfaces (613) are adapted to the two sides of the inclined block (611).

5. The screw locking device for a hollow shaft precision component according to claim 3, characterized in that: A spring (608) is fixedly connected to one side of the L-shaped card plate (607). The side of the spring (608) away from the L-shaped card plate (607) is fixedly connected to the side of the positioning rod (603). The spring (608) is sleeved on the outside of the limiting rod (605).

6. The screw locking device for a hollow shaft precision component according to claim 1, characterized in that: The ring (2) has a ring-shaped positioning groove (7) that is equidistantly distributed on one side and is adapted to the positioning rod (603).

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