CN113814904B - Universal flexible vice for machining - Google Patents

Abstract

The invention relates to the field of machining, in particular to a universal flexible vice for machining, which comprises a vice base, a flat vice seat and a movable vice seat, wherein the flat vice seat and the movable vice seat are arranged on the vice base; two flexible jaw blocks are symmetrically arranged in the movable jaw, and the flexible jaw blocks are rotary jaw blocks of 1/4 discs and are connected to two ends of the movable jaw through two hinged hole bolts. The invention has simple structure, reliable clamping, convenient operation, low manufacturing and refitting cost, can effectively reduce the labor intensity, can self-adapt to different shapes of the contour surface of the part, and is easy to realize and maintain.

Description

A general flexible vise for machining

technical field

The invention relates to the field of machining, in particular to a general flexible vise for machining.

Background technique

Flat vise is the main fixture of planer, milling machine, drilling machine, grinding machine and slotting machine. It is widely used in milling machine, drilling machine, etc. to process various surfaces, grooves, angles and other parts. With the continuous development of advanced manufacturing industry, the contour shape of mechanical parts is becoming more and more complex, and the precision is getting higher and higher, while the clamping problem of machine tools has always affected the quality of parts. In addition, in order to meet the needs of market competition such as informatization, automation, and specialization in the processing and manufacturing industry, the design and manufacture of fixtures are particularly important.

At present, the design and manufacture of fixtures at home and abroad are mainly for high-end and complex combined special fixtures. The price is high, which is not suitable for the needs of small and medium-sized enterprises, and brings difficulties to small batch production. It is widely used, especially in mechanical processing such as milling, planing, and drilling, but due to many inconveniences, its performance and efficiency need to be improved. The clamping principle of the flat vise is to realize the clamping of the workpiece through screw transmission, which has the advantages of large clamping force and reliable clamping. However, in actual production applications, due to the different shapes and sizes of workpieces, it is necessary to frequently open and close the movable jaws and fixed jaws. Due to the influence of the clamping screw drive lead, it often takes a long time to turn the clamping handle to Clamping or loosening the workpiece is time-consuming, labor-intensive, inefficient, and has certain defects such as damage to the shape of precision parts. In addition, most of the existing vises are flat, and the jaws have a single function, which cannot be applied to different Shaped artifacts.

Contents of the invention

In order to solve the above problems, the present invention provides a general-purpose flexible vise for machining, which overcomes the phenomenon of uneven force on the workpiece and unstable processing caused by the excessive fit gap of the machine vise; it solves the problem of the existing light, Clamping is unreliable when processing precision workpieces, and the consistency of multiple clamping is poor.

In order to achieve the above object, the technical solution adopted by the present invention is: a general flexible vise for machining, including a vise base, a flat vise seat and a movable jaw seat installed on the vise base, the movable jaw seat It includes an adjustable jaw seat and a movable jaw. The movable jaw is connected with the adjustable jaw seat under the action of the guide pin, and the movable jaw is driven to move horizontally on the guide pin together with the jaw block by rotating the screw rod. The mouth is inlaid with a pin sleeve that matches the guide pin, and a small gap is selected between the guide pin and the pin sleeve; two flexible jaw blocks are symmetrically arranged in the movable jaw, and the flexible jaw block is made of a 1/4 disc. The rotating jaw block is bolted to both ends of the movable jaw through two reaming holes.

Further, the adjustable jaw seat and the flat vise seat are connected through a horse trough. When clamping, first move the adjustable jaw seat horizontally to a suitable position according to the size of the workpiece, and tighten the clamp on the adjustable jaw seat. fastening screws.

Further, the flexible jaw blocks are arranged symmetrically at the upper and lower ends inside the movable jaw, and the rotation angle is between 0° and 90°.

Further, a fixed jaw block with a rubber anti-skid layer uniformly provided on the surface is provided inside the flat vise seat.

Further, a rubber anti-slip layer is evenly provided on the outside of the flexible jaw block.

Further, the adjustable jaw seat is pre-embedded with bolts adapted to the reaming hole bolts.

Further, the flexible jaw block adopts an electromagnetic block. After reaching the target angle, the flexible jaw block can be firmly adsorbed on the adjustable jaw seat by energizing the flexible jaw block, so as to realize the relative locking of the current target angle. end.

The invention has the advantages of simple structure, reliable clamping and convenient operation, can effectively reduce labor intensity, has low production and refitting costs, can adapt to different shapes of parts contour surfaces, and is easy to implement and maintain. Using the self-adjustment function of the flexible jaw block, it is suitable for the clamping of irregular curved surfaces; it realizes the rapid movement of the movable jaw, shortens the clamping time of the parts, and improves the production efficiency; adopts the fine-tuning device to avoid large clearance fit The stability of the clamping of the parts saves labor and reduces the damage to the surface of the parts.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is a schematic diagram of a usage state according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of another usage state of the embodiment of the present invention;

Fig. 4 is a schematic diagram of another usage state of the embodiment of the present invention;

Fig. 5 is a schematic diagram of another usage state of the embodiment of the present invention.

Detailed ways

In order to make the objects and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figures 1 to 5, the embodiment of the present invention provides a general-purpose flexible vise for machining, including a vise base 5, a flat-mouth vise seat 1 and a movable jaw seat installed on the vise base, so that The adjustable jaw base and the flat-mouth vise base are connected through a horse trough. When clamping, first move the adjustable jaw base horizontally to a suitable position according to the size of the workpiece, and tighten the fastening screws on the adjustable jaw base. The movable jaw seat includes an adjustable jaw seat 6 and a movable jaw 4, and the movable jaw is connected with the adjustable jaw seat under the action of a guide pin, and the movable jaw is guided together with the jaw block by rotating the screw rod. The pin moves horizontally, and the movable jaw is inlaid with a pin sleeve that matches the guide pin. A small gap is selected between the guide pin and the pin sleeve, which not only shortens the time for rotating and driving the screw rod during clamping, but also effectively avoids Eliminates the movement of the movable jaws up and down due to the excessive guide gap during the movement of the movable jaws. Two flexible jaw blocks 3 are symmetrically arranged in the movable jaw, and the flexible jaw block adopts a 1/4 disc rotating jaw block, which is connected to the two ends of the movable jaw by two hinged hole bolts. When the block is rotating, the inconsistency of the radial radius is used to realize the installation and clamping of irregular parts, such as circular parts, cam parts and irregular polygons. In this way, the self-adjusting function of the flat vise is realized, and the purpose of flexible clamping is achieved.

In this embodiment, the flexible jaw block is arranged symmetrically at the upper and lower ends of the movable jaw, and the rotation angle is between 0° and 90°, and the change of its radial radius is used to adapt to irregular parts such as curved surfaces and polygons. The clamping needs of the contour realize the adaptability of the flexible jaw, and the function of the jaw is greatly improved.

In this embodiment, a fixed jaw block 2 with a rubber anti-skid layer uniformly arranged on the surface is arranged inside the flat vise seat, and a rubber anti-skid layer is evenly arranged outside the flexible jaw block, so that the parts can be stably clamped. , to avoid damage to parts as much as possible.

Further, the flexible jaw block adopts an electromagnetic block. After reaching the target angle, the flexible jaw block can be firmly adsorbed on the adjustable jaw seat by energizing the flexible jaw block, so as to realize the relative locking of the current target angle. end. In order to avoid cumbersome wiring, a built-in battery can be used for power supply, and a button for power on and off is arranged on the flexible jaw block.

The clamping process and working principle of this specific implementation: the base of the vise is installed on a horizontal workbench such as a machine tool, and the characteristics of the workpiece to be clamped are used to quickly adjust the level through the small gap between the adjustable jaw seat and the horse trough of the vise base. The position of the adjustable jaw seat is at the base of the vise. When the movable jaw is in rough contact with the workpiece to be clamped, according to the shape characteristics of the part, the rotation position of the rotating jaw block is properly adjusted, and then the screw rod that controls the horizontal movement of the movable jaw is rotated. , so that the movable jaw drives the rotating jaw block to move evenly and steadily when adapting to different workpiece shapes, and clamps the parts well.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims (5)

1. A universal flexible vise for machining, comprising a vise base, and a flat vise seat and a movable jaw seat installed on the vice base, characterized in that: the movable jaw seat includes an adjustable jaw seat and a movable jaw seat. The movable jaw is connected with the adjustable jaw seat under the action of the guide pin, and the movable jaw is driven to move horizontally on the guide pin together with the jaw block by rotating the screw rod, and the movable jaw is inlaid with the guide pin The matching pin sleeve, the guide pin and the pin sleeve are matched with a small gap; two flexible jaw blocks are symmetrically arranged in the movable jaw, and the flexible jaw block adopts a 1/4 disc rotating jaw block. A hinged hole bolt is connected to both ends of the movable jaw; the flexible jaw block adopts an electromagnetic block, and after reaching the target angle, the flexible jaw block can be firmly adsorbed on the adjustable jaw by electrifying the flexible jaw block. On the mouth seat, so as to realize the relative locking of the current target angle. 2. A kind of universal flexible vice for machining as claimed in claim 1, characterized in that: the adjustable jaw seat and the flat mouth vise seat are connected through a manger, and when clamping, first according to the size of the workpiece, the horizontal Move the adjustable jaw base to a suitable position, and tighten the fastening screws on the adjustable jaw base. 3. A universal flexible vice for machining as claimed in claim 1, characterized in that: said flexible jaw block is arranged symmetrically at the upper and lower ends of the inner side of the movable jaw, and the rotation angle is between 0° and 90°. between. 4 . A universal flexible vice for machining as claimed in claim 1 , wherein a fixed jaw block with a rubber anti-slip layer uniformly arranged on the surface is arranged in the flat vise seat. 5 . 5 . A general-purpose flexible vice for machining as claimed in claim 1 , wherein a rubber anti-skid layer is uniformly arranged outside the flexible jaw block. 6 .

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