Quick positioning clamping mechanism

Abstract

The utility model belongs to the technical field of positioning clamps, and particularly relates to a quick positioning clamping mechanism which comprises a positioning base, a connecting sleeve assembled and connected to the positioning base, a piston slidably connected to the connecting sleeve, a conical sleeve assembled and connected to the upper portion of the connecting sleeve, and a conical lower portion of the conical sleeve. The upper portion of the piston is provided with a conical cavity mutually coupled with the lower portion of the conical sleeve, the lower portion of the connecting sleeve is provided with two air ports used for controlling the piston to ascend and descend vertically, the conical sleeve is provided with a through hole in the axial direction, the lower portion of the conical sleeve is provided with a containing groove in the circumferential direction, and a positioning piece is arranged in the containing groove formed in the conical sleeve. When the piston moves upwards, the positioning piece is extruded towards the inner side of the conical sleeve; the pneumatic clamping device is simple in structure, the piston is controlled to ascend and descend by inputting gas into the gas port, so that the piston controls the positioning piece to move, the clamped piece is positioned through the positioning piece, and the clamped piece is controlled quickly and stably.

Description

TECHNICAL FIELD

[0001] The utility model belongs to positioning fixture technical field, concretely relates to a clamping mechanism of quick positioning. BACKGROUND

[0002] Mechanical clamp is a device for fixing processing object in mechanical manufacturing process, makes the element that needs processing to be in the right position, accepts the device of construction or detection, can be called clamp in the process of processing product, can be called clamp in the process of processing product, needs through clamping mechanism to clamp workpiece when processing workpiece,

[0003] But in the prior art, the workpiece needs to be clamped to a series of operations, the operation is complex, and the quick positioning of the workpiece cannot be realized. UTILITY MODEL CONTENT

[0004] In view of the problems in the above background art, the utility model aims at providing a clamping mechanism of quick positioning to solve the problems in the above background art.

[0005] In order to realize the above technical purpose, the utility model adopts the following technical scheme:

[0006] A clamping mechanism of quick positioning, comprising a positioning base, the positioning base is assembled and connected with a connecting sleeve, the connecting sleeve is slidably connected with a piston, the upper portion of the connecting sleeve is assembled and connected with a conical sleeve, the lower portion of the conical sleeve is conical, the upper portion of the piston is provided with a conical cavity which is coupled with the lower portion of the conical sleeve, the lower portion of the connecting sleeve is provided with two air ports for controlling the up-down movement of the piston, the conical sleeve is provided with a through hole along the axial direction, the lower portion of the conical sleeve is provided with a containing groove along the circumferential direction, and the containing groove of the conical sleeve is provided with a positioning piece, when the piston moves upward, the positioning piece is extruded to the inner side of the conical sleeve.

[0007] Further limited, the lower portion of the piston is sequentially provided with a first circular groove and a second circular groove from bottom to top, and the first circular groove and the second circular groove are used to leave a gap with the inner wall of the lower side of the connecting sleeve.

[0008] Further limited, the positioning piece is a positioning steel ball.

[0009] Further limited, the first circular groove and the second circular groove of the piston are provided with a sealing ring groove, and the upper portion of the piston is provided with a first weight-reducing groove.

[0010] Further limited, the number of the containing groove of the conical sleeve is one or two.

[0011] Further limited, the piston is provided with a cylindrical groove directly below the conical cavity.

[0012] Further limited, the upper small lower big of the connecting sleeve is a right angle type step connection, the lower part of the piston is in sliding connection with the lower part of the connecting sleeve, and the upper part is in sliding connection with the upper part of the connecting sleeve.

[0013] Compared with the prior art, the utility model has the advantages of the following:

[0014] The utility model discloses simple structure, through the lifting of the piston of input gas control to gas port, thereby through the movement of the positioning member of piston control, through the positioning of the clamped member of positioning member, control is rapid, and control is stable.

[0015] The utility model discloses cleverly set up, through the position setting of piston and conical sleeve mutual cooperation is conical, thereby when the piston moves upwards, the horizontal distance of piston and positioning member reduces, in the process that the piston moves upwards, make positioning member move to the inside of conical sleeve, and the workpiece of being processed in conical sleeve is positioned, and control is simple, fast. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model can be further explained through the non - limiting embodiment shown in the drawings;

[0017] Figure 1 It is the structure schematic view of a quick positioning's clamping mechanism of the utility model;

[0018] Figure 2 It is the structure schematic view of the piston of the utility model and is located in the lower part of connecting sleeve;

[0019] Figure 3 It is the structure schematic view of the piston and the separation state of connecting sleeve of the utility model;

[0020] Figure 4 It is the explosion map of a quick positioning's clamping mechanism of the utility model;

[0021] Figure 5 It is the structure schematic view of the piston assembly of the utility model;

[0022] The main element symbol explanation is as follows:

[0023] Positioning base 1, connecting sleeve 2, gas port 21;

[0024] Piston 3, conical cavity 31, first circular ring groove 32, second circular ring groove 33, sealing ring groove 34, first weight reduction groove 35, cylindrical groove 36;

[0025] Conical sleeve 4, positioning member 5. DETAILED DESCRIPTION

[0026] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model is further described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] like Figures 1-5As shown, a clamping mechanism for rapid positioning includes a positioning base 1, a connecting sleeve 2 mounted on the positioning base 1, a piston 3 slidably connected to the connecting sleeve 2, a conical sleeve 4 mounted on the upper part of the connecting sleeve 2, the lower part of the conical sleeve 4 being conical, a conical cavity 31 coupled to the lower part of the conical sleeve 4 on the upper part of the piston 3, two air ports 21 for controlling the up and down movement of the piston 3 on the lower part of the connecting sleeve 2, a through hole opened along the axial direction on the conical sleeve 4, a receiving groove opened along the circumferential direction on the lower part of the conical sleeve 4, a positioning element 5 provided in the receiving groove opened in the conical sleeve 4, and when the piston 3 moves upward, the positioning element 5 is pressed towards the inside of the conical sleeve 4.

[0031] In this embodiment, the positioning base 1 is used to install the connecting sleeve 2. At the same time, the positioning base 1 seals the lower part of the connecting sleeve 2. The connecting sleeve 2 and the lower part of the piston 3 are relatively sealed. The movement of the piston 3 is controlled by controlling the air passage 21. The two air passages 21 are preferably located on the same straight line to facilitate the installation of the air pipe. When the piston 3 moves to the upper part, the upper conical cavity 31 of the piston 3 and the conical sleeve 4 fit together. The inner side of the conical cavity 31 and the inner side of the conical sleeve 4 fit together. During the upward movement of the piston 3, the positioning member 5 is gradually squeezed inward, so that the inner side of the positioning member 5 clamps the clamped part. The clamped part is a rotating body located in the through hole of the conical sleeve 4, with its lower end located above the piston 3.

[0032] Reference Figure 5 The lower part of the piston 3 is provided with a first annular groove 32 and a second annular groove 33 from bottom to top. The first annular groove 32 and the second annular groove 33 are used to leave a gap with the lower inner wall of the connecting sleeve 2. In this embodiment, the first annular groove 32 is used to communicate with the lower air port 21. When the lower air port 21 is filled with air, it pushes the piston 3 to move upward. When the piston 3 is pushed to the upper position, the upper air port 21 communicates with the second annular groove 33. Thus, when the upper air port 21 is vented, the gas pushes the piston 3 to move downward. The lower part of the first annular groove 32 is located at the bottom edge of the piston 3, and the upper part of the second annular groove 33 is located at the upper edge of the lower part of the piston 3.

[0033] Reference Figure 1 The positioning element 5 is a positioning steel ball. In this embodiment, when the piston 3 moves upward, the positioning element 5 moves inward under the force of the conical surface of the piston 5, thereby clamping the workpiece located inside the conical sleeve 4. The positioning element 5 is preferably a steel ball, which has uniform force and a long service life. The positioning element 5 can also be a wedge block, located inside the connecting sleeve 2, and the positioning element 5 matches the groove 1 of the clamping part of the clamped workpiece.

[0034] Reference Figure 5A sealing ring groove 34 is provided between the first annular groove 32 and the second annular groove 33 of the piston 3, and a first weight-reducing groove 35 is provided on the upper part of the piston 3. In this embodiment, the sealing ring groove 34 is used to install a sealing ring, thereby separating the first annular groove 32 and the second annular groove 33. This prevents gas entering the first annular groove 32 from passing through the gap between the piston 3 and the connecting sleeve 2 into the second annular groove 33, thus affecting the height control of the piston 13 by the air port 21. The first weight-reducing groove 35 is used to reduce the weight of the piston 3 while ensuring that the piston 3 has sufficient strength.

[0035] Reference Figure 2 The tapered sleeve 4 has one or two receiving slots. In this embodiment, the number of receiving slots is further limited, preferably two, with the two receiving slots arranged opposite each other. Providing two receiving slots ensures that the tapered sleeve 4 has sufficient strength.

[0036] Reference Figure 5 The piston 3 has a cylindrical groove 36 directly below the conical cavity 31. In this embodiment, the cylindrical groove 36 is used to allow space for the lower part of the clamped part.

[0037] Reference Figure 2 The connecting sleeve 2 is narrower at the top and wider at the bottom, with a right-angled step in the middle. The lower part of the piston 3 is slidably connected to the lower part of the connecting sleeve 2, and the upper part is slidably connected to the upper part of the connecting sleeve 2. In this embodiment, the right-angled step is used to limit the distance the piston 3 can move upward relative to the connecting sleeve 2, thereby further restricting the piston 3 from continuing to move upward under the action of gas.

[0038] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A clamping mechanism for rapid positioning, comprising a positioning base (1), characterized in that: The positioning base (1) is assembled with a connecting sleeve (2), the connecting sleeve (2) is slidably connected with a piston (3), the upper part of the connecting sleeve (2) is assembled with a conical sleeve (4), the lower part of the conical sleeve (4) is conical, the upper part of the piston (3) is provided with a conical cavity (31) that is coupled to the lower part of the conical sleeve (4), the lower part of the connecting sleeve (2) is provided with two air ports (21) for controlling the piston (3) to move up and down, the conical sleeve (4) is provided with a through hole along the axial direction, the lower part of the conical sleeve (4) is provided with a receiving groove along the circumferential direction, and a positioning element (5) is provided in the receiving groove of the conical sleeve (4). When the piston (3) moves to the upper side, the positioning element (5) is pressed against the inner side of the conical sleeve (4).

2. The clamping mechanism for rapid positioning according to claim 1, characterized in that: The piston (3) has a first annular groove (32) and a second annular groove (33) arranged sequentially from bottom to top on its lower part. The first annular groove (32) and the second annular groove (33) are used to leave a gap with the lower inner wall of the connecting sleeve (2).

3. The clamping mechanism for rapid positioning according to claim 1, characterized in that: The positioning element (5) is a positioning steel ball.

4. The clamping mechanism for rapid positioning according to claim 2, characterized in that: A sealing groove (34) is provided between the first annular groove (32) and the second annular groove (33) of the piston (3), and a first weight reduction groove (35) is provided on the upper part of the piston (3).

5. The clamping mechanism for rapid positioning according to claim 3, characterized in that: The conical sleeve (4) has one or two receiving slots.

6. The clamping mechanism for rapid positioning according to claim 4, characterized in that: The piston (3) has a cylindrical groove (36) directly below the conical cavity (31).

7. The clamping mechanism for rapid positioning according to any one of claims 1-6, characterized in that: The connecting sleeve (2) is smaller at the top and larger at the bottom, with a right-angled step in the middle. The lower part of the piston (3) is slidably connected to the lower part of the connecting sleeve (2), and the upper part is slidably connected to the upper part of the connecting sleeve (2).

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