CN223762721U - A machining clamping fixture - Google Patents

Abstract

The utility model discloses a machining clamping fixture which comprises a vice, wherein clamping blocks are respectively arranged at the jaw positions of the vice, a positioning mechanism is arranged in the clamping blocks positioned on the jaw fixing jaws of the vice, and is used for positioning a workpiece clamped in the vice, wherein the positioning mechanism comprises a sliding block capable of sliding in the clamping blocks and an adjusting assembly arranged in the clamping blocks, the sliding block is connected with the adjusting assembly, the sliding block can move in the clamping blocks through driving of the adjusting assembly, and one end of the sliding block is provided with a positioning plate which is used for positioning the workpiece clamped in the vice. According to the utility model, the positioning mechanism is arranged at the jaw of the vice, so that the workpieces are rapidly and accurately positioned and clamped in the batch production process, the working efficiency is improved, the integrated design is realized, and the convenience in carrying is realized.

Description

Machining clamping fixture

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a machining clamping fixture.

Background

The machining fixture is, in short, a process equipment specially designed and manufactured for accurately positioning and reliably clamping a workpiece in the machining process so as to facilitate machining operations such as cutting, milling, drilling, grinding and the like. The clamp has the main functions of ensuring the position precision of a workpiece in the machining process, preventing the workpiece from moving or deforming due to the action of cutting force, gravity or other external forces, and further ensuring that the machined part meets the design requirements.

In the machining process, a vice is often used for clamping workpieces, but when the workpieces are produced in batches, the clamping positions of the front and rear groups of workpieces are difficult to be kept consistent, so that repeated adjustment and verification are required, and the machining efficiency is seriously affected.

At present, to above-mentioned problem, the mode that often adopts is, through external positioner, promotes location efficiency, although can effectively reduce adjustment and check-up time, but this kind of external positioner's mode has compatible problem with the vice, when for the whole portability of vice receives the influence and increases operating personnel's burden.

Disclosure of utility model

In order to solve the problems in the prior art, the utility model aims to provide the machining clamping fixture so as to rapidly and accurately position and clamp workpieces in the batch production process of the workpieces, improve the working efficiency and realize integrated design.

In order to achieve the technical purposes and effects, the utility model is realized by the following technical scheme:

the machining clamping fixture comprises a vice, clamping blocks are respectively arranged at the jaw positions of the vice, a positioning mechanism is arranged in the clamping blocks positioned on the jaw of the vice, and the workpiece is clamped in the vice through the positioning mechanism;

The positioning mechanism comprises a sliding block capable of sliding in the clamping block and an adjusting assembly arranged in the clamping block, the sliding block is connected with the adjusting assembly, the sliding block can move in the clamping block through driving of the adjusting assembly, one end of the sliding block is provided with a positioning plate, and the workpiece clamped in the vice is positioned through the positioning plate.

Further, the cross section of the sliding block is I-shaped.

Further, the outer side surface of the sliding block does not protrude from the clamping surface of the clamping block.

Further, the adjusting component comprises a screw rod, a nut fixedly connected with the sliding block is arranged in the middle of the screw rod, bearing seats are respectively arranged at two ends of the screw rod, and the screw rod is rotatably arranged in the clamping block through the bearing seats.

Further, an inner hexagonal hole is formed in the end face of at least one end of the screw rod.

Further, the locating plate is hinged with the sliding block.

Further, a containing groove is formed in the sliding block at the hinged end of the positioning plate and the sliding block, and the sliding block can be contained in the containing groove along with rotation of the positioning plate.

Further, a magnet is arranged in the accommodating groove.

Further, the positioning plate is located at the hinged end side of the positioning plate and the sliding block, a limiting pin is arranged on the positioning plate, and a limiting hole matched with the limiting pin is formed in the sliding block.

The utility model has the beneficial effects that the positioning mechanism is arranged at the jaw of the vice, so that the workpieces are rapidly and accurately positioned and clamped in the batch production process, the working efficiency is improved, the integrated design is realized, and the carrying is convenient.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

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

FIG. 2 is a schematic diagram of a positioning mechanism of the present utility model connected to a clamping block;

FIG. 3 is a schematic view of a positioning mechanism according to the present utility model;

FIG. 4 is an enlarged view of the utility model at A in FIG. 3;

FIG. 5 is a schematic view showing the unfolded state of the positioning plate according to the present utility model;

FIG. 6 is a diagram showing the positioning state of the clamp according to the present utility model;

fig. 7 is an enlarged view of fig. 6 at B in accordance with the present utility model.

The reference numerals in the figure indicate that 1, a vice, 2, a clamping block, 3, a positioning mechanism, 4, a magnet, 5, a limiting pin, 31, a sliding block, 32, an adjusting component, 33, a positioning plate, 311, a containing groove, 312, a limiting hole, 321, a screw rod, 322, a nut, 323, a bearing seat, 3211 and an inner hexagonal hole.

Detailed Description

The utility model will be described in detail below with reference to the drawings in combination with embodiments.

It should be noted that all directional indicators (such as up, down, left, right, front, rear, upper, lower, top, bottom) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

Referring to fig. 1-2, a machine tool clamping fixture comprises a vice 1, clamping blocks 2 are respectively arranged at the jaw positions of the vice 1, and in the embodiment, a positioning mechanism 3 is arranged in the clamping blocks 2 on the fixed jaw positions of the vice 1, and the workpiece clamping in the vice 1 is positioned by the positioning mechanism 3.

In this embodiment, the positioning mechanism 3 includes a sliding block 31 that can slide in the clamping block 2 and an adjusting component 32 that is disposed in the clamping block 2, where the sliding block 31 is connected to the adjusting component 32, and when the adjusting component 32 drives the sliding block 31 to move in the clamping block 2, one end of the sliding block 31 is provided with a positioning plate 33, and the workpiece is clamped in the vice 1 by the positioning plate 33, where it should be noted that, in this embodiment, when the positioning plate 33 positions the workpiece, as shown in fig. 5, the positioning plate 33 is perpendicular to the sliding block 31, and the positioning plate 33 is made of stainless steel.

Further, referring to fig. 3-5, in this embodiment, the cross section of the slider 31 is i-shaped, and after the slider 31 is mounted, the outer side surface of the slider 31 does not protrude from the clamping surface of the clamping block 2, but in this embodiment, the outer side surface of the slider 31 is preferably slightly lower than the clamping surface of the clamping block 2.

Further, referring to fig. 3-4, in this embodiment, the adjusting assembly 32 includes a screw rod 321, a nut 322 fixedly connected to the slider 31 is disposed in the middle of the screw rod 321, and bearing seats 323 are respectively disposed at two ends of the screw rod 321, the screw rod 321 is rotatably disposed in the clamping block 2 through the bearing seats 323, during adjustment, an operator drives the nut 322 to move back and forth along the screw rod 321 by rotating the screw rod 321, so as to drive the slider 31 to move in the clamping block 2, while in this embodiment, in order to facilitate rotating the screw rod 321, an inner hexagonal hole 3211 is formed on an end surface of one end of the screw rod 321, but not limited to one end, and the inner hexagonal hole 3211 may also be formed at two ends of the screw rod 321.

Further, in this embodiment, the positioning plate 33 is hinged to the slider 31, so that the positioning plate 33 is completely accommodated in the slider 31 after the positioning plate 33 is folded, as shown in fig. 7, the slider 31 at the hinged end of the positioning plate 33 and the slider 31 is provided with an accommodating groove 311, and the accommodating groove 311 can be accommodated along with the rotation of the positioning plate 33, so that the space is saved and the carrying is convenient.

Further, as shown in fig. 7, in this embodiment, in order to avoid the positioning plate 33 folded into the accommodating groove 311, in the non-positioning operation state, the positioning plate 33 is turned out from the accommodating groove 311, and a magnet 4 is disposed in the accommodating groove 311, and the positioning plate 33 is adsorbed in the accommodating groove 311 by the magnet 4.

Further, referring to fig. 4, in this embodiment, a limiting pin 5 is disposed on the side of the hinged end of the positioning plate 33 and the sliding block 31, a limiting hole 312 adapted to the limiting pin 5 is formed on the sliding block 31, when the positioning plate 33 is in a positioning state, the limiting pin 5 penetrates into the limiting hole 312, and the positioning plate 33 is prevented from rotating in the sliding block 31 during positioning operation by the cooperation of the limiting pin 5 and the limiting hole 312, wherein in this embodiment, the limiting pin 5 is made of plastic.

The working principle of the utility model is as follows:

Before use, referring to fig. 6, after the jaws of the vice 1 are separated by a certain distance according to the workpiece size specification required to be clamped, the screw rod 321 is rotated by a wrench to adjust the slide block 31 to a proper position, and then the positioning plate 33 is unfolded from the accommodating groove 311 and rotated to be perpendicular to the slide block 31.

During clamping, a workpiece is placed between the jaws of the vice 1, and after one side of the workpiece, which is close to the positioning plate 33, abuts against the positioning plate 33, the workpiece is clamped.

The workpiece clamping device comprises a clamping device, a clamping device and a clamping device, wherein the clamping device is used for clamping a first workpiece, and the clamping device is used for clamping a second workpiece.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. A machining clamping fixture, comprising a vise (1), wherein clamping blocks (2) are respectively provided at the jaws of the vise (1), characterized in that: a positioning mechanism (3) is provided in the clamping blocks (2) located on the fixed jaws of the vise (1), and the positioning mechanism (3) is used to position the workpiece clamped in the vise (1); The positioning mechanism (3) includes a slider (31) that can slide within the clamping block (2) and an adjustment component (32) disposed within the clamping block (2). The slider (31) is connected to the adjustment component (32), and the slider (31) can move within the clamping block (2) by being driven by the adjustment component (32). A positioning plate (33) is provided at one end of the slider (31), and the positioning plate (33) is used to position the workpiece clamped in the vise (1). 2. The machining clamping fixture according to claim 1, characterized in that: the cross-section of the slider (31) is I-shaped. 3. The machining clamping fixture according to claim 1, characterized in that: the outer side of the slider (31) does not protrude from the clamping surface of the clamping block (2). 4. The machining clamping fixture according to claim 1, characterized in that: the adjusting component (32) includes a lead screw (321), a nut (322) fixedly connected to the slider (31) is provided in the middle of the lead screw (321), and a bearing seat (323) is provided at both ends of the lead screw (321), and the lead screw (321) is rotatably disposed in the clamping block (2) through the bearing seat (323). 5. The machining clamping fixture according to claim 4, characterized in that: an internal hexagonal hole (3211) is provided on the end face of at least one end of the lead screw (321). 6. The machining clamping fixture according to claim 1, characterized in that: the positioning plate (33) and the slider (31) are hinged together. 7. The machining clamping fixture according to claim 6, characterized in that: a receiving groove (311) is provided on the slider (31) at the hinge end of the positioning plate (33) and the slider (31), and can be accommodated in the receiving groove (311) as the positioning plate (33) rotates. 8. The machining clamping fixture according to claim 7, characterized in that: a magnet (4) is provided in the receiving groove (311). 9. The machining clamping fixture according to claim 6, characterized in that: a limiting pin (5) is provided on the positioning plate (33) at the hinge end of the positioning plate (33) and the slider (31), and a limiting hole (312) adapted to the limiting pin (5) is provided on the slider (31).