CN214867344U

CN214867344U - Hydraulic chuck clamping device

Info

Publication number: CN214867344U
Application number: CN202120588882.3U
Authority: CN
Inventors: 钱璨
Original assignee: Jinhua Janshi Auto Parts Co ltd
Current assignee: Jinhua Janshi Auto Parts Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-11-26
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses a hydraulic chuck clamping device, including chuck and pipe fitting, all install the fixed block on the jack catch of chuck, the inboard of jack catch all is equipped with the outer clamp plate, the inboard of outer clamp plate all is equipped with the interior clamp plate, all form a curved centre gripping passageway between interior clamp plate and the outer clamp plate, during pipe fitting one end inserts the centre gripping passageway to compress tightly fixedly through interior clamp plate and outer clamp plate, all outwards bulge forms a fixed part on the lateral surface of outer clamp plate, all install the locking mechanism who fixes the outer clamp plate on the fixed part, all install adjustment mechanism on the medial surface of inner clamp plate. The utility model discloses simple structure has increased the fastness and the stability of centre gripping, and can share the weight of pipe fitting, has avoided the bending of pipe fitting to can prop the inner wall of pipe fitting through the interior clamp plate, avoided causing the pipe fitting to flatten at the in-process of processing, the installation of this device is simple with the dismantlement simultaneously, can increase the adaptability according to the distance between the thickness adjustment external pressure plate of pipe fitting outer wall and the interior clamp plate.

Description

Hydraulic chuck clamping device

Technical Field

The utility model relates to a numerical control technical field, concretely relates to hydraulic chuck clamping device.

Background

The hydraulic chuck is a clamp controlled by a hydraulic system and is used for clamping a workpiece on a main shaft of a numerical control lathe.

At present, the jack catch volume on the hydraulic chuck is many less to it is less with the area of contact of material, cause rocking of material easily, and correspond some thinner tubular products, flatten the pipe easily at the in-process of centre gripping, thereby influence product quality, and do not support the inner wall of tubular product, also cause flattening of tubular product easily at the process of cutting.

Disclosure of Invention

The utility model aims to solve the technical problem that a hydraulic chuck clamping device is provided to solve the problem of proposing among the above-mentioned background art.

The utility model discloses a realize through following technical scheme: a hydraulic chuck clamping device comprises a chuck and a pipe fitting, wherein fixed blocks are arranged on clamping jaws of the chuck, the inner side surfaces of the fixed blocks are all inwards recessed to form a slot, outer pressing plates are arranged on the inner sides of the clamping jaws, inner pressing plates are arranged on the inner sides of the outer pressing plates, an arc-shaped clamping channel is formed between the inner pressing plates and the outer pressing plates, one end of the pipe fitting is inserted into the clamping channel and is pressed and fixed by the inner pressing plates and the outer pressing plates, the outer pressing plates are outwards protruded towards the slot to form an inserting part, one end of the inserting part is inserted into the slot, the outer side surfaces of the outer pressing plates are outwards protruded to form a fixed part, the fixed part and the inserting part are arranged in parallel, one side surface of the fixed part is abutted against the outer wall surface of the fixed block, locking mechanisms for fixing the outer pressing plates are arranged on the fixed part, grooves are arranged at positions, close to the clamping jaws, the inner pressing plates are all formed into convex parts towards the grooves, one end of the convex part is inserted into the groove, and the inner side surface of the inner pressing plate is provided with an adjusting mechanism.

As preferred technical scheme, locking mechanism all includes the double-screw bolt, first screw rod and first hand wheel, all be equipped with first screw hole on the outer wall of fixed block, the fixed part is just all being equipped with the second screw hole to first screw hole department, all be equipped with the third screw hole with external intercommunication on the internal face of second screw hole, the equal threaded connection of double-screw bolt is in first screw hole and second screw hole, first screw rod threaded connection is in the third screw hole, first screw rod one end is all installed on the double-screw bolt, the other end all sets up in the external world, and all install first hand wheel.

As the preferred technical scheme, the adjusting mechanisms all comprise second screw rods, bearings and second hand wheels, the bearings are all installed on the inner wall surfaces of the grooves in an embedded mode, fourth screw holes penetrating through the convex portions and the inner pressing plates are formed in the positions, right opposite to the inner rings of the bearings, of the convex portions, the second screw rods are all in threaded connection with the fourth screw holes, one ends of the second screw rods are all installed in the inner rings of the bearings, the other ends of the second screw rods are all arranged outside, and the second hand wheels are all installed.

As a preferable technical scheme, gaps for the inner pressure plate to move are formed between the convex parts and the concave grooves.

As the preferred technical scheme, the outer pressing plate and the inner pressing plate are both arranged in an arc-shaped structure.

The utility model has the advantages that: the utility model discloses simple structure, the volume of outer clamp plate and interior clamp plate is greater than the volume of jack catch far away, can increase the area of contact with the pipe fitting, the fastness and the stability of centre gripping have been increased, and can share the weight of pipe fitting, the bending of pipe fitting has been avoided, and can prop the inner wall of pipe fitting through the interior clamp plate, avoided causing the pipe fitting to flatten at the in-process of processing, guarantee the quality of product, the installation of this device is simple with the dismantlement simultaneously, can be according to the distance between the thickness adjustment outer clamp plate of pipe fitting outer wall and the interior clamp plate, adaptability has been increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of the middle inner pressing plate and the outer pressing plate of the present invention when clamping the pipe.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the hydraulic chuck clamping device of the present invention comprises a chuck 14 and a pipe 3, wherein the jaws of the chuck 14 are all provided with a fixed block 16, the inner side of the fixed block 16 is all recessed to form a slot, the inner sides of the jaws are all provided with an outer pressing plate 1, the inner sides of the outer pressing plate 1 are all provided with an inner pressing plate 2, an arc-shaped clamping channel 17 is formed between the inner pressing plate 2 and the outer pressing plate 1, one end of the pipe 3 is inserted into the clamping channel 17 and is pressed and fixed by the inner pressing plate 2 and the outer pressing plate 1, the outer pressing plate 1 just protrudes outwards relative to the slot to form an insertion portion 11, one end of the insertion portion 11 is inserted into the slot, the outer side of the outer pressing plate 1 is all protruded outwards to form a fixed portion 7, the fixed portion 7 and the insertion portion 11 are all arranged in parallel, one side of the fixed portion 7 is all abutted against the outer wall surface of the fixed block 16, the fixed portion 7 is all provided with a locking mechanism for fixing the outer pressing plate, outer clamp plate 1 all is equipped with recess 5 near jack catch department, and inner clamp plate 2 just all forms a convex part 4 to the recess department, and 4 one ends of convex part all insert in recess 5, all install adjustment mechanism on the medial surface of inner clamp plate 2.

In this embodiment, locking mechanism all includes double-screw bolt 9, first screw rod 8 and first hand wheel 6, all be equipped with first screw hole on the outer wall of fixed block 16, fixed part 7 is just all being equipped with the second screw hole to first screw hole department, all be equipped with the third screw hole with external intercommunication on the internal face of second screw hole, double-screw bolt 9 is threaded connection in first screw hole and second screw hole, 8 threaded connection of first screw rod are in the third screw hole, 8 one ends of first screw rod are all installed on double-screw bolt 9, the other end all sets up in the external world, and all install first hand wheel 6.

In this embodiment, each of the adjusting mechanisms includes a second screw 13, a bearing 12, and a second hand wheel 15, the bearings 12 are all embedded in the inner wall surface of the groove 5, a fourth screw hole penetrating through the convex portion and the inner pressing plate is provided at the inner ring of the convex portion 4 opposite to the bearing, the second screws 13 are all screwed in the fourth screw hole, one end of each of the second screws 13 is installed in the inner ring of the bearing 12, and the other end of each of the second screws 13 is installed outside and is provided with the second hand wheel 15.

In this embodiment, a gap for the inner pressure plate to move is formed between the protrusion 4 and the groove 5, so that the protrusion can move in the groove.

In this embodiment, outer clamp plate 1 and interior clamp plate 2 all are the arc structure setting, make inner wall and outer wall that outer clamp plate and interior clamp plate can more comprehensive contact pipe fitting.

When the clamping device is used, the distance between the clamping jaws is adjusted according to the diameter of a pipe, the clamping jaws move to drive the outer pressing plate and the inner pressing plate until one end of the pipe can be inserted into the clamping channel, then the distance between the outer pressing plate and the inner pressing plate is adjusted according to the thickness of the outer wall of the pipe, the second hand wheel is rotated during adjustment, the second hand wheel rotates to drive the second screw rod, the inner pressing plate and the convex part are driven by the second screw rod to move the convex part to be attached to the groove until the outer side surface of the inner pressing plate is abutted against the inner wall surface of the pipe, the inner wall of the pipe can be supported by the inner pressing plate, the pipe is prevented from being flattened during processing, and the quality of a product is ensured;

the sizes of the outer pressing plate and the inner pressing plate are far larger than the size of the clamping jaw, so that the contact area between the outer pressing plate and the pipe fitting can be increased, the clamping firmness and stability are improved, the weights of the middle part and the tail part of the pipe fitting can act on the outer pressing plate, the weight of the pipe fitting can be shared, and the bending of the pipe fitting is avoided;

when the device is installed, the inserting portion is directly inserted into the inserting groove, the first hand wheel is rotated, the first screw rod and the stud are driven by the rotation of the first hand wheel, the stud can enter the first screw hole and the second screw hole, the device is directly fixed, otherwise, the inserting portion can be taken out of the inserting groove by reversely rotating the first hand wheel, and the device is convenient to disassemble.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A hydraulic chuck clamping device characterized in that: comprises a chuck (14) and a pipe fitting (3), wherein the clamping jaws of the chuck (14) are all provided with fixed blocks (16), the inner side surfaces of the fixed blocks (16) are all inwards recessed to form a slot, the inner sides of the clamping jaws are all provided with outer pressing plates (1), the inner sides of the outer pressing plates (1) are all provided with inner pressing plates (2), an arc-shaped clamping channel (17) is formed between the inner pressing plates (2) and the outer pressing plates (1), one end of the pipe fitting (3) is inserted into the clamping channel (17), the pipe fitting is tightly pressed and fixed by the inner pressing plates (2) and the outer pressing plates (1), the outer pressing plates (1) are just outwards protruded to the slot to form an inserting part (11), one end of the inserting part (11) is inserted into the slot, the outer side surfaces of the outer pressing plates (1) are outwards protruded to form a fixed part (7), the fixed part (7) and the inserting part (11) are arranged in parallel, one side surface of the fixed part (7) is all abutted against the outer wall surface of the fixed blocks (16), all install the locking mechanism who fixes the outer clamp plate on fixed part (7), outer clamp plate (1) is close to jack catch department and all is equipped with recess (5), and interior clamp plate (2) just all form a convex part (4) to recess department, and convex part (4) one end all inserts in recess (5), all installs adjustment mechanism on the medial surface of interior clamp plate (2).

2. The hydraulic chuck clamping device according to claim 1, wherein: locking mechanism all includes double-screw bolt (9), first screw rod (8) and first hand wheel (6), all be equipped with first screw hole on the outer wall of fixed block (16), fixed part (7) are just all being equipped with the second screw hole to first screw hole department, all be equipped with the third screw hole with external intercommunication on the internal face of second screw hole, the equal threaded connection in first screw hole and second screw hole of double-screw bolt (9), first screw rod (8) threaded connection is in the third screw hole, first screw rod (8) one end is all installed on double-screw bolt (9), the other end all sets up in the external world, and all install first hand wheel (6).

3. The hydraulic chuck clamping device according to claim 1, wherein: the adjusting mechanism comprises a second screw rod (13), a bearing (12) and a second hand wheel (15), the bearing (12) is installed on the inner wall surface of the groove (5) in an embedded mode, a fourth screw hole penetrating through the convex portion and the inner pressing plate is formed in the position, right opposite to the inner ring of the bearing, of the convex portion (4), the second screw rod (13) is connected into the fourth screw hole in a threaded mode, one end of the second screw rod (13) is installed in the inner ring of the bearing (12), the other end of the second screw rod is arranged outside, and the second hand wheel (15) is installed on the other end of the second screw rod.

4. The hydraulic chuck clamping device according to claim 1, wherein: gaps for the inner pressing plate to move are formed between the convex parts (4) and the concave grooves (5).

5. The hydraulic chuck clamping device according to claim 1, wherein: the outer pressing plate (1) and the inner pressing plate (2) are both arranged in an arc-shaped structure.