A circular parts clamping and fixing device

Abstract

The invention discloses a circular ring-shaped part clamping and fixing device, which clamps the outer side of the circular ring through a lever structure and wraps and positions the circular ring through a positioning tile cover, so as to facilitate the stable clamping of the circular ring-shaped part. The invention is characterized in that one end of a connecting shaft is sleeved with a fixing rod, and the positioning tile cover is placed on the other end of the connecting shaft. The positioning tile cover is composed of an arc-shaped cover body and an upper support plate and a lower support plate. Guide wheels are respectively arranged at both ends of the positioning tile cover, and a group of connecting ears are arranged on the top of the positioning tile cover. A driving rod is hinged with the connecting ears through a hinge shaft, a pressure plate is arranged at one end of the driving rod, a connecting sheet is arranged at the other end of the driving rod, a hook plate is placed on the other end of the driving rod, the hook plate is a curved plate, and a pressure block is placed on a side of the hook plate close to the positioning tile cover.

Description

Technical Field

[0001] The invention discloses a ring-shaped part clamping and fixing device, which is a fixing device used for grabbing and moving ring-shaped parts, and belongs to the field of mechanical equipment. In particular, it relates to a fixing device that clamps the outer side of the ring through a lever structure and wraps and positions the ring through a positioning tile cover, so as to facilitate the stable clamping of a single ring-shaped part. Background Art

[0002] At present, in the process of mechanical production, circular parts such as sealing rings, gaskets, piston rings and other structures are encountered. During the processing, they need to be grasped to check the appearance, pickled, etc., and they need to be grasped one by one. Direct contact with hands has safety hazards and is easy to cause surface defects of parts, such as deformation. The existing mechanical grippers are used for clamping, or multi-point balanced clamping is used for clamping circular parts. It is necessary to match the size of the circular parts, especially for some circular rings with larger diameters. Single-sided clamping is prone to flipping and falling off, affecting the fixation stability. After fixation, the parts cannot be rotated for inspection, which is inefficient and has poor safety.

[0003] Publication No. CN205085978U discloses a circular ring grasping device, including a rotating disk, a center hole is provided at the center of the rotating disk, and curved grooves are symmetrically distributed in the circumference of the center hole; a base is provided below the rotating disk, a center axis is provided in the middle of the base, and the lower part of the base is a "T"-shaped groove structure, and a straight groove is opened on the plane of the "T"-shaped groove; a claw sliding along the groove is provided in the "T"-shaped groove, and a claw vertical shaft is provided on the claw, and the claw vertical shaft slides in the curved groove and the straight groove at the same time. The structure of the device needs to be adapted to the size of the circular ring, and the volume is huge, which is not convenient for fixed clamping during single inspection.

[0004] Publication No. CN108708061A discloses a coil grabbing mechanism, comprising a base disk, a coil grabbing disk and a driving mechanism; the coil grabbing disk and the base disk are both ring-shaped with a downward depression in the middle and are coaxial with each other, the inner diameter of the coil grabbing disk is smaller than the inner diameter of the base disk, and the outer diameter of the coil grabbing disk is larger than the inner diameter of the base disk and smaller than the outer diameter of the base disk; the inner diameter of the coil grabbing disk is formed with an edge that passes downward through the inner diameter of the base disk, and the edge can cover the coil; the coil grabbing disk is extended and retracted in the radial direction by the driving mechanism, thereby driving the edge to retract and retract in the inner diameter of the base disk. The structure of the device is also huge, the clamping operation is complicated, the stability is poor, and a single circular ring structure cannot be grasped and fixed. Summary of the invention

[0005] In order to improve the above situation, a circular ring-shaped part clamping and fixing device of the present invention provides a fixing device which clamps the outer side of the circular ring through a lever structure and wraps and positions the circular ring through a positioning tile cover, thereby facilitating stable clamping of the circular ring-shaped part.

[0006] A circular ring-shaped part clamping and fixing device of the present invention is realized as follows: a circular ring-shaped part clamping and fixing device of the present invention is composed of a main body positioning structure and a lever structure, the main body positioning structure is composed of a fixing rod, a connecting shaft, a positioning tile cover, a guide wheel and a connecting ear, one end of the connecting shaft is sleeved with the fixing rod, and the positioning tile cover is placed on the other end of the connecting shaft, the positioning tile cover is composed of an arc-shaped cover body and an upper support plate and a lower support plate, guide wheels are respectively arranged at both ends of the positioning tile cover, and a group of connecting ears are arranged on the top of the positioning tile cover, the lever structure is composed of a driving rod, a pressure plate, a hook plate and a pressure block, the driving rod is hinged through a hinge shaft and the connecting ear, a pressure plate is arranged at one end of the driving rod, a connecting piece is arranged at the other end of the driving rod, the hook plate is placed on the other end of the driving rod, the hook plate is a curved plate, the pressure block is placed on a side of the hook plate close to the positioning tile cover, the pressure block is made of rubber material, the two ends of the pressure plate are bent in opposite directions respectively, the pressure plate is made of rubber material, and the width of the pressure plate is greater than the width of the driving rod.

[0007] Beneficial effects.

[0008] 1. It can support and fix a single circular part in a plane.

[0009] 2. It can be clamped and fixed on one side, with small size and small rotation space.

[0010] 3. Simple structure, convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A three-dimensional structural diagram of a circular ring-shaped parts clamping and fixing device of the present invention;

[0012] Figure 2 A three-dimensional structural diagram of a circular ring-shaped parts clamping and fixing device of the present invention, which only shows the three-dimensional structure from another perspective;

[0013] Figure 3 A schematic structural diagram of a circular ring-shaped parts clamping and fixing device according to the present invention;

[0014] Figure 4 A top view of a circular ring-shaped parts clamping and fixing device according to the present invention.

[0015] In the attached figure

[0016] The components include: a fixing rod (1), a connecting shaft (2), a positioning tile cover (3), a driving rod (4), a pressing plate (5), a hook plate (6), a guide wheel (7), a pressing block (8), and a connecting ear (9). DETAILED DESCRIPTION

[0017] The invention discloses a circular ring-shaped part clamping and fixing device, which is realized as follows: the invention discloses a circular ring-shaped part clamping and fixing device, which is composed of a main body positioning structure and a lever structure, wherein the main body positioning structure is composed of a fixing rod (1), a connecting shaft (2), a positioning tile cover (3), a guide wheel (7) and a connecting ear (9), wherein one end of the connecting shaft (2) is sleeved with the fixing rod (1), the positioning tile cover (3) is placed on the other end of the connecting shaft (2), the positioning tile cover (3) is composed of an arc-shaped cover body and an upper support plate and a lower support plate, the guide wheels (7) are respectively placed at the two ends of the positioning tile cover (3), a group of connecting ears (9) are placed on the top of the positioning tile cover (3), and the lever structure is provided. The invention comprises a driving rod (4), a pressure plate (5), a hook plate (6) and a pressure block (8), wherein the driving rod (4) is hingedly connected via a hinge shaft and a connecting ear (9), a pressure plate (5) is arranged at one end of the driving rod (4), a connecting plate is arranged at the other end of the driving rod (4), the hook plate (6) is arranged on the other end of the driving rod (4), the hook plate (6) is a curved plate, the pressure block (8) is arranged on one side of the hook plate (6) close to the positioning tile cover (3), the pressure block (8) is made of rubber material, the two ends of the pressure plate (5) are bent in opposite directions respectively, the pressure plate (5) is made of rubber material, and the width of the pressure plate (5) is greater than the width of the driving rod (4).

[0018] When in use, the pressing plate (5) is first held to press down one end of the driving rod (4), so that the other end of the driving rod (4) drives the hook plate (6) to tilt up, and a gap is left between the hook plate (6) and the positioning tile cover (3). Then, the pressing plate (5) is gradually lifted to drive one end of the driving rod (4) to lift up, and the size of the gap between the hook plate (6) and the positioning tile cover (3) is controlled to clamp the annular part between the hook plate (6) and the positioning tile cover (3). By controlling the distance between the pressing plate (5) and the fixing rod (1), the degree of clamping of the inside of the annular part can be controlled, and the lower support plate on the positioning tile cover (3) can support the part to prevent the part from falling.

[0019] The two rollers can be supported on the circumferential surface of the annular part, so as to facilitate the rotation inspection of the annular part;

[0020] The design of the lower support plate can support the bottom of the part when the circular part is clamped, ensuring the stability of the part state when clamping and checking;

[0021] The design of the arc-shaped cover body can adapt to the clamping of circular parts of different sizes, and has a wider range of applications;

[0022] The hook plate (6) is designed with a curved surface, which can adapt to the characteristics of the circular ring-shaped parts, and cooperate with the pressing block (8) and the positioning card cover to clamp the circular ring-shaped parts, and the clamping effect is more stable;

[0023] The pressing block (8) is designed to be made of rubber material. When the pressing block (8) cooperates with the positioning card cover to clamp the part, it can adaptively deform according to the clamping force applied to the part. On the one hand, it can prevent the rigid material from causing wear to the part and affecting the quality of the part. On the other hand, it can clamp the part through adaptive deformation, making the clamping more stable.

[0024] The design of the two ends of the pressing plate (5) being bent in opposite directions makes it easier for an operator to place his hands on the pressing plate (5) to drive the driving rod (4), and can limit the position of the hands to prevent the hands from slipping when clamping parts.

[0025] The design of the pressing plate (5) being wider than the driving rod (4) can adapt to the shape and size of the operator's hand and facilitate the hand's grip;

[0026] The pressing plate (5) is designed to be made of a rubber material. When the pressing plate (5) is held by hand to drive the driving rod (4), the rubber material can, on the one hand, increase the friction between the hand and the pressing plate (5) to prevent the hand from slipping when clamping, and on the other hand, can improve the comfort of holding the pressing plate (5);

[0027] The design of the positioning tile cover (3) and the guide wheel (7) in cooperation with the hook plate (6) can clamp and securely hold annular parts of different types by adjusting the distance between the hook plate (6) and the positioning tile cover (3), and the circumferential surface of the annular part can be further fixed by the guide wheel (7) in cooperation with the positioning tile cover (3), and the rotation inspection of the annular part can be facilitated, thus having a wider range of applications;

[0028] The outer side of the circular ring is clamped by the lever structure, and the positioning tile cover (3) is used to wrap and position the circular ring, thereby facilitating the purpose of stably clamping a single circular ring-shaped part.

[0029] The above embodiments are preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any person skilled in the art may make some improvements without departing from the scope of the present invention, that is, any equivalent improvements made according to the present invention should be covered by the scope of the present invention.

Claims

1. A circular parts clamping and fixing device, characterized by: The lever structure is composed of a main body positioning structure and a lever structure, the main body positioning structure is composed of a fixed rod, a connecting shaft, a positioning tile cover, a guide wheel and a connecting ear, one end of the connecting shaft is sleeved with the fixed rod, the positioning tile cover is placed on the other end of the connecting shaft, the positioning tile cover is composed of an arc-shaped cover body and an upper support plate and a lower support plate, guide wheels are respectively arranged at both ends of the positioning tile cover, a group of connecting ears are arranged on the top of the positioning tile cover, the lever structure is composed of a driving rod, a pressure plate, a hook plate and a pressure block, the driving rod is hinged with the connecting ear through a hinge shaft, a pressure plate is arranged at one end of the driving rod, a connecting piece is arranged at the other end of the driving rod, and the hook plate is placed on the other end of the driving rod. When in use, first hold the pressure plate and press down one end of the driving rod so that the other end of the driving rod drives the hook plate to tilt up. A gap is left between the hook plate and the positioning tile cover, and then the pressure plate is gradually lifted to drive one end of the driving rod to lift, and the size of the gap between the hook plate and the positioning tile cover is controlled to clamp the annular part between the hook plate and the positioning tile cover. By controlling the distance between the pressure plate and the fixing rod, the degree of clamping of the inside of the annular ring of the annular part can be controlled. The lower support plate on the positioning tile cover can support the part to prevent the part from falling. The design of the positioning tile cover, guide wheel and hook plate can clamp and stabilize annular parts of different models by adjusting the distance between the hook plate and the positioning tile cover. The circumferential surface of the annular part is further fixed by the guide wheel and the positioning tile cover, and the rotation inspection of the annular part can be facilitated.

2. A circular part clamping and fixing device according to claim 1, characterized in that The hook plate is a curved plate, and the pressing block is placed on one side of the hook plate close to the positioning tile cover.

3. A circular part clamping and fixing device according to claim 2, characterized in that The pressing block is made of rubber material, and the pressing plate is made of rubber material.

4. The annular parts clamping and fixing device according to claim 1, characterized in that The two ends of the pressing plate are bent in opposite directions respectively.

5. The annular parts clamping and fixing device according to claim 4, characterized in that The width of the pressing plate is greater than the width of the driving rod.

6. The annular parts clamping and fixing device according to claim 2, characterized in that The hook plate is designed with a curved surface, which can adapt to the characteristics of the circular ring-shaped parts and cooperate with the pressing block and the positioning card cover to clamp the circular ring-shaped parts.

7. The annular parts clamping and fixing device according to claim 3, characterized in that The pressure block is made of rubber material. When the pressure block cooperates with the positioning card cover to clamp the part, it can adaptively deform according to the clamping force applied to the part. On the one hand, it can prevent the rigid material from causing wear on the part and affecting the quality of the part. On the other hand, it can clamp the part through adaptive deformation, making the clamping more stable.

8. The annular parts clamping and fixing device according to claim 1, characterized in that The outer side of the ring is clamped by the lever structure, and the wrapping and positioning is performed by the positioning tile cover.

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