CN220679412U - Chuck clamp for machining center - Google Patents

Abstract

The utility model discloses a chuck clamp for a machining center, which belongs to the field of chucks and comprises a chuck main body, wherein a central through hole is formed in the center of the chuck main body, the center through hole is coincided with the center of the chuck main body, four sliding grooves are uniformly formed in the front side surface of the chuck main body, the four sliding grooves are distributed at 90 degrees, a threaded rod is arranged in each sliding groove through a bearing, a sliding block is screwed on the surface of each threaded rod, a clamping block is arranged on the outer side of each sliding block, the threads of the two threaded rods on the same straight line are opposite in direction, the clamping blocks exceed the front side surface of the chuck main body, four clamping jaws can be independently controlled in normal use, and when a rectangular workpiece is met, the two clamping jaws on the same straight line can be linked and simultaneously approach or simultaneously separate, so that the rectangular workpiece is centered and clamped, and the installation efficiency is improved due to the fact that the original four-step control is reduced to two steps.

Description

Chuck clamp for machining center

Technical Field

The utility model relates to the field of chucks, in particular to a chuck clamp for a machining center.

Background

Machining centers have evolved from numerically controlled milling machines. The processing center has the capability of automatically exchanging processing tools, the processing tools on the main shaft can be changed through the automatic tool changing device in one clamping by installing tools with different purposes on the tool magazine, multiple processing functions are realized, four claw chucks are adopted for processing irregular workpieces or eccentric processing, the four claws of the four claw chucks can move independently, the relative positions of the workpieces and the chucks can be ensured by multiple times of adjustment when the chucks are used for clamping, concentric or eccentric processing is realized, rectangular workpieces with different lengths and widths can be frequently met in daily production, the workpieces are integrally symmetrical, the four claw chucks are still required to fix the four sides one by one, then gradual adjustment is carried out, and the efficiency is extremely low.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide a chuck clamp for a machining center, which can realize that two clamping jaws on the same straight line can be communicated through an internal structure when a rectangular workpiece is machined, so that the installation efficiency is improved.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a chuck anchor clamps for machining center, includes the chuck main part, central through-hole has been seted up at the chuck main part center, central through-hole and chuck main part centre of a circle coincidence, four have evenly been seted up to chuck main part front side surface four the spout is 90 angular distributions, the threaded rod is installed through the bearing to the spout inside, the threaded rod surface has closed the slider soon, the slider outside is provided with the clamp splice, two on the same straight line threaded rod screw opposite direction, the clamp splice surpasss chuck main part front side surface, the inboard slidable mounting of threaded rod has the square pole, the square pole runs through the threaded rod, two of same straight line the one end that the square pole is close to each other all is provided with the shaft coupling, the center through-hole inboard is arranged in to the shaft coupling, the shaft coupling size is greater than the square pole, two shaft couplings symmetry settings on the same straight line.

Further, the outer arc surface of the chuck main body is uniformly provided with storage holes, the positions of the storage holes correspond to the sliding grooves, and the storage holes are communicated with the inner parts of the sliding grooves.

Further, one end of the square rod, which is away from the coupler, is provided with an inner hexagonal control head, the inner hexagonal control head is arranged at the inner side of the storage hole, and the end part of the inner hexagonal control head is flush with the outer circular arc surface of the chuck main body.

Further, the square rod surface is sleeved with a spring, the spring is arranged at the inner side of the storage hole, one end of the spring is in contact with the surface of the end part of the threaded rod, and the other end of the spring is in contact with the surface of the inner side of the inner hexagonal control head.

Further, the surfaces of one side of the four clamping blocks, which are close to the central through hole, are provided with anti-slip convex strips.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that: the utility model provides a chuck clamp for a machining center, wherein four clamping jaws can be independently controlled during normal use, when a rectangular workpiece is encountered, two clamping jaws on the same straight line can be linked through an internal mechanism and simultaneously approach or simultaneously separate, so that the rectangular workpiece can be centered and clamped, and the original four-step control is reduced to two steps, so that the installation efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional structural view of the present utility model;

FIG. 3 is an enlarged schematic view of the area A of FIG. 2 according to the present utility model;

FIG. 4 is a schematic view of the slider and clamp block of the present utility model.

The reference numerals in the figures illustrate: 1. a chuck body; 2. a central through hole; 3. a chute; 4. a threaded rod; 5. a slide block; 6. clamping blocks; 601. an anti-slip raised line; 7. a receiving hole; 8. square rods; 9. a spring; 10. a hexagon control head; 11. a coupling.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Example 1:

referring to fig. 1 and 2, a chuck fixture for a machining center includes a chuck main body 1, a central through hole 2 is formed in the center of the chuck main body 1, the center through hole 2 is coincident with the center of the chuck main body 1, so that a long cylindrical workpiece can be installed, four sliding grooves 3 are uniformly formed in the front side surface of the chuck main body 1, the four sliding grooves 3 are distributed at 90 degrees, a threaded rod 4 is installed inside the sliding grooves 3 through bearings, a sliding block 5 is screwed on the surface of the threaded rod 4, a clamping block 6 is arranged on the outer side of the sliding block 5, rotation of the threaded rod 4 is controlled to drive the clamping block 6 to move, the directions of threads of the two threaded rods 4 on the same straight line are opposite, so that when the two threaded rods 4 on the same straight line are linked, the two clamping blocks 6 can be driven to approach or separate from each other, the clamping block 6 exceeds the front side surface of the chuck main body 1, and the two threaded rods 4 on different straight lines are located at different depths, so that two axes perpendicular to each other are staggered, and internal mechanisms are prevented from obstructing each other.

Wherein, threaded rod 4 inboard slidable mounting has square pole 8, square pole 8 runs through threaded rod 4 for can carry out the axis and slide between square pole 8 and the threaded rod 4, but can not rotate relatively, can drive threaded rod 4 through square pole 8 and rotate then, the one end that two square poles 8 of same straight line are close to each other all is provided with shaft coupling 11, shaft coupling 11 is arranged in central through-hole 2 inboard, shaft coupling 11 size is greater than square pole 8, shaft coupling 11 can carry out fine spacing to square pole 8, so as to prevent to lead to the internal part skew because of centrifugal force, two shaft coupling 11 symmetry settings on the same straight line, can realize the cooperation when being close to each other then.

Please refer to fig. 2 and 3, the outer arc surface of the chuck body 1 is uniformly provided with a storage hole 7, the position of the storage hole 7 corresponds to the sliding groove 3, the storage hole 7 is communicated with the sliding groove 3, one end of the square rod 8, which is away from the coupling 11, is provided with an inner hexagonal control head 10, the square rod 8 is rotated by the cooperation of the corresponding hexagonal handle and the inner hexagonal control head 10, the threaded rod 4 is then rotated, the inner hexagonal control head 10 is arranged at the inner side of the storage hole 7, and the end part of the inner hexagonal control head 10 is flush with the outer arc surface of the chuck body 1.

Wherein, square pole 8 surface cover is equipped with spring 9, and spring 9 is arranged in and is accomodate hole 7 inboard, and spring 9 one end and threaded rod 4 tip surface contact, and the spring 9 other end and the contact of interior hexagonal control head 10 inboard surface, utilize spring 9's elasticity can guarantee that interior hexagonal control head 10 receives outside thrust when not receiving the pressure, then make two shaft couplings 11 mutually separate.

Referring to fig. 4, anti-slip raised strips 601 are provided on the surfaces of the four clamping blocks 6 near the central through hole 2, so as to achieve anti-slip effect on the inner side workpiece.

Working principle: during normal use, the inner hexagonal control head 10 always receives outward force due to the spring 9, the outer side surface of the inner hexagonal control head 10 is flush with the outer surface of the chuck main body 1, two couplers 11 on the same straight line are in separated rotation states, meanwhile, the size of each coupler 11 is larger than that of each square rod 8, so that the inner hexagonal control head 10, each square rod 8 and each coupler 11 cannot continue to move outwards, the inner parts are prevented from being offset due to centrifugal force during working, at the moment, the clamp is a four-jaw chuck for transmission, the inner hexagonal control head 10 is rotated by a matched tool to drive the spring 9 to rotate, then the threaded rod 4 is driven to rotate, the distance between the clamping block 6 and the center of the center through hole 2 in one direction is adjusted, eccentric clamping is achieved, when a regular rectangular workpiece is met, the four clamping blocks 6 are moved to limit values in advance, then the inner threaded rod is applied to push inwards when the inner hexagonal control head 10 is rotated, the two couplers 11 on the same straight line are mutually close to each other and matched, the rotation of the threaded rod 4 can drive the threaded rod 4 to rotate, and therefore the two clamping blocks can be mutually moved away from each other in opposite directions, and the clamping speed of the two clamping blocks can be kept away from each other, and the clamping speed of the two clamping blocks can be simultaneously guaranteed to be mutually opposite to be located to the center or mutually opposite.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (5)

1. Chuck fixture for machining center, including chuck main part (1), its characterized in that: the chuck is characterized in that a center through hole (2) is formed in the center of the chuck body (1), the center through hole (2) is coincident with the center of the chuck body (1), four sliding grooves (3) are uniformly formed in the front side surface of the chuck body (1), the sliding grooves (3) are distributed at an angle of 90 degrees, a threaded rod (4) is mounted in the sliding grooves (3) through a bearing, sliding blocks (5) are screwed on the surface of the threaded rod (4), clamping blocks (6) are arranged on the outer side of the sliding blocks, the threads of the threaded rods (4) are opposite in direction, the clamping blocks (6) exceed the front side surface of the chuck body (1), square rods (8) are slidably mounted on the inner side of the threaded rod (4), one ends, close to each other, of the square rods (8) penetrate through the threaded rod (4), the two ends, close to each other, of the square rods (8) are provided with a coupler (11), the inner side of the center through hole (2) is arranged in the coupling (11), and the size of the coupler (11) is larger than the symmetry of the square rods (8).

2. The chuck fixture for a machining center according to claim 1, wherein: the chuck is characterized in that storage holes (7) are uniformly formed in the outer arc surface of the chuck body (1), the positions of the storage holes (7) correspond to those of the sliding grooves (3), and the storage holes (7) are communicated with the inner parts of the sliding grooves (3).

3. The chuck fixture for a machining center according to claim 2, wherein: one end of the square rod (8) deviating from the coupler (11) is provided with an inner hexagonal control head (10), the inner hexagonal control head (10) is arranged on the inner side of the storage hole (7), and the end part of the inner hexagonal control head (10) is flush with the outer circular arc surface of the chuck main body (1).

4. A chuck fixture for a machining center according to claim 3, wherein: the square rod (8) surface cover is equipped with spring (9), the inboard of accomodating hole (7) is arranged in to spring (9), spring (9) one end and threaded rod (4) tip surface contact, just spring (9) other end and interior hexagonal control head (10) inboard surface contact.

5. The chuck fixture for a machining center according to claim 1, wherein: and anti-slip raised strips (601) are arranged on the surfaces of one sides of the four clamping blocks (6) close to the central through hole (2).