CN223684870U - A general-purpose milling machine tooling fixture with a nut clamping mechanism - Google Patents

Abstract

The utility model discloses a universal milling machine tool fixture with a nut clamping mechanism, which comprises a base, a vertical plate vertically arranged and a clamping part arranged above the vertical plate. The clamping part drives the clamping piece to realize clamping action through the threaded connection of the stud and the nut, and the lower end of the vertical plate is provided with a replaceable hole positioning part so as to adapt to the hole positioning requirements of parts with different diameters. The hole positioning part comprises a fixed column, a connecting rod and a part positioning column, and the fixed column, the connecting rod and the part positioning column are connected through threads, so that the positioning position and the angle can be conveniently adjusted. In addition, the clamping part is also provided with a plurality of auxiliary holes which can be used for installing cushion blocks or supporting columns, so that the clamping stability is further enhanced. The utility model obviously improves the processing precision and efficiency, reduces the production cost and has wide application prospect through flexible and adjustable clamping and positioning mechanisms and good adaptability to parts with different shapes and sizes.

Description

Universal milling machine tool fixture with nut clamping mechanism

Technical Field

The utility model relates to the field of machining devices, in particular to a general milling machine tool fixture with a nut clamping mechanism.

Background

In the field of machine manufacturing, milling machines are widely used as machining equipment, and play a vital role in machining parts with various complex shapes and precision requirements. Particularly, when small, special-shaped parts with hole structures are processed, accurate clamping and positioning are key for guaranteeing processing quality and efficiency.

In the prior art, common clamping modes include, but are not limited to, clamping by a pressing plate, screw clamping, manual clamping and the like. These conventional methods are generally capable of meeting basic clamping requirements when handling standard shape or large size parts. However, conventional clamping components tend to be difficult to achieve with a firm and accurate grip when facing small, contoured parts, especially parts with irregular holes. On the one hand, because the part size is little, the shape is complicated, and traditional clamping mode easily leads to the clamping insecure, and the part easily takes place not hard up in the course of working, and then influences precision and the surface quality of processing, probably even causes the work piece to scrap or the lathe damages. On the other hand, in order to avoid excessive clamping caused by loosening, deformation of parts may be caused by stress concentration, and especially for parts with softer materials or thin-wall structures, the deformation is particularly obvious, and the end use performance of the product is seriously reduced. The special fixture is designed for each part with different shapes and sizes, and the stability and the machining precision of clamping can be ensured, but the method obviously increases the production cost and the preparation time, and does not accord with the production concept of pursuing high efficiency and low cost in the modern manufacturing industry. Particularly, in a small-batch and diversified production mode, the frequent replacement of the special clamp is low in efficiency and not cost-effective, and the production flexibility and the market competitiveness are greatly limited.

Therefore, the universal milling machine tool fixture which can not only effectively adapt to the clamping requirements of various small-sized and special-shaped parts with holes, but also ensure the stable clamping and avoid the deformation of the parts is developed, and is a technical problem to be solved by the technicians in the field.

Disclosure of utility model

Aiming at the problems existing in the background technology, the utility model provides a general milling machine fixture with a nut clamping mechanism, which can be used for considering the universality, the stability and the economy, the device comprises a base and a vertical plate, the vertical plate is vertically arranged above the base, the base is used for fixing the fixture, the vertical plate is used for clamping a workpiece to be processed, the clamping device is characterized in that a clamping part is arranged above the vertical plate, a clamping hole is formed in the middle of the clamping part, threads are formed in the clamping hole, a stud is fixedly arranged in the clamping hole through threads, a clamping piece is arranged at the front end of the stud, a nut is arranged at the front end of the clamping piece, and the nut is used for pushing the clamping piece to move inwards through rotation of the front end of the stud, so that a workpiece to be clamped is realized.

Furthermore, the middle part of the lower end of the vertical plate is provided with a positioning through hole, a replaceable hole positioning part is arranged in the positioning through hole, and the hole positioning part can be changed with different diameters according to the size of a hole of a processed part.

Preferably, the hole positioning part comprises a fixing column, the fixing column is arranged in the positioning through hole, the front part of the fixing column is connected with a connecting rod, the other end of the connecting rod is provided with a part positioning column, and the part positioning column is used for positioning the hole of the processed part.

Further, the connecting rod is fixed with the fixing column and the part positioning column through threads, the part positioning column can move on the connecting rod, and the connecting rod can rotate around the circumference of the fixing column.

Further, a plurality of auxiliary holes are formed in the clamping portion, and cushion blocks or support columns can be arranged in the auxiliary holes according to clamping requirements.

Preferably, two auxiliary holes are respectively formed in parallel on the left side and the right side of the clamping hole.

Preferably, an auxiliary hole is formed below the clamping hole.

The clamping part is provided with the threaded clamping holes and the studs, and the clamping pieces can be pushed to move inwards by rotating the nuts, so that the workpieces with different sizes can be clamped. Meanwhile, a replaceable hole locating part is arranged in the locating through hole at the lower end of the vertical plate, part locating columns with different diameters can be replaced according to the sizes of holes of the machined parts, and the hole locating part can be used for locating the accurate holes of different machined parts through threaded fixation and circumferential rotation between the connecting rod and the fixing column and between the hole locating parts. Be provided with a plurality of auxiliary holes on the clamping part, can set up cushion or support column according to the centre gripping requirement, further strengthened the adaptability and the centre gripping stability of anchor clamps.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the utility model in operation.

Fig. 2 is a schematic view of the present utility model in a non-clamping state.

Fig. 3 is a schematic view of the present utility model with a hole positioning portion.

The device comprises a 1-base, a 2-vertical plate, a 3-clamping part, a 31-clamping hole, a 32-stud, a 33-clamping piece, a 34-nut, a 35-auxiliary hole, a 351-cushion block, a 352-supporting column, a 4-positioning through hole, a 41-hole positioning part, a 411-fixing column, a 412-connecting rod and a 413-part positioning column.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower directions of the device in actual use or operation, and specifically the directions of the drawings in the drawings, while "inner" and "outer" are used with respect to the outline of the device.

As shown in fig. 1, 2 and 3, the fixture includes a base 1, and the base 1 is used for stably fixing the whole fixture on a milling machine. The vertical plate 2 is vertically arranged above the base 1, and the main function of the vertical plate 2 is to clamp and support a workpiece.

The clamping part 3 is arranged above the vertical plate 2, the clamping hole 31 is formed in the center of the clamping part 3, and threads are arranged in the clamping hole 31. The stud 32 is screwed in the clamping hole 31, and the front end of the stud 32 extends out of the clamping hole 31 and is connected with the clamping piece 33. The front end of the clamping piece 33 is provided with a nut 34, and the clamping piece 33 can be driven to move along the axial direction of the stud 32 by rotating the nut 34, so that the workpiece can be clamped or loosened.

A positioning through hole 4 is formed in the middle of the lower end of the vertical plate 2, and a replaceable hole positioning part 41 is arranged in the positioning through hole 4. The hole positioning portion 41 includes a fixing post 411, and the fixing post 411 is fixedly installed in the positioning through hole 4. The front part of the fixed column 411 is connected with a connecting rod 412 through threads, the other end of the connecting rod 412 is provided with a part positioning column 413, and the part positioning column 413 is used for being inserted into a hole of a workpiece to be accurately positioned. The connecting rod 412 is in threaded connection with the fixing column 411 and the part positioning column 413, so that the position of the part positioning column 413 and the angle of the connecting rod 412 can be adjusted as required.

The clamping part 3 is provided with a plurality of auxiliary holes 35, and the auxiliary holes 35 are used for installing cushion blocks 351 or support columns 352 so as to enhance the adaptability and the clamping stability of the clamp. Specifically, two auxiliary holes 35 are respectively formed in parallel on the left and right sides of the clamping hole 31, and one auxiliary hole 35 is also formed below the clamping hole 31 to ensure the omnibearing stability of clamping.

The specific using steps are as follows:

In this embodiment, an appropriate part positioning column 413 is selected according to the shape, size and position of the hole of the workpiece, and is mounted on the fixing column 411 via a link 412. The length and angle of the connecting rod 412 are adjusted so that the part positioning column 413 can be accurately inserted into the hole of the workpiece. The workpiece is placed on the vertical plate 2, and preliminary positioning is achieved by the part positioning column 413.

The nut 34 is rotated and the driving jaw 33 is moved forward along the stud 32 until the workpiece is tightly gripped. A spacer 351 or a support post 352 may be inserted into the auxiliary hole 35 as needed to further enhance stability and adaptability of clamping. And fixing the whole fixture on a milling machine, and starting the milling machine for machining. After the processing is completed, the nut 34 is rotated reversely, the clamping piece 33 is loosened, and the workpiece is taken out.

The general milling machine tool fixture with the nut clamping mechanism provided by the utility model is described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (6)

1. The utility model provides a general milling machine frock clamp with nut clamping mechanism, the device includes base (1) and riser (2), riser (2) are set up perpendicularly base (1) top, its characterized in that, riser (2) top is provided with clamping part (3), clamping hole (31) have been seted up in the middle of clamping part (3), set up the screw thread in clamping hole (31), clamping hole (31) internal thread is fixed with double-screw bolt (32), double-screw bolt (32) front end is provided with clamping piece (33), clamping piece (33) front end is provided with nut (34), nut (34) are in double-screw bolt (32) front end rotation promotion clamping piece (33) inwards move, realize the clamp to the machined part, locating through hole (4) have been seted up at riser (2) lower extreme middle part, be provided with interchangeable hole location portion (41) in locating through hole (4), hole location portion (41) can be according to the size of being processed spare part hole and changing different diameters.

2. The universal milling machine tool fixture with the nut clamping mechanism according to claim 1, wherein the hole positioning portion (41) comprises a fixing column (411), the fixing column (411) is arranged in the positioning through hole (4), a connecting rod (412) is connected to the front portion of the fixing column (411), and a part positioning column (413) is arranged at the other end of the connecting rod (412).

3. The universal milling machine tool fixture with the nut clamping mechanism according to claim 2, wherein the connecting rod (412) is fixed with the fixing column (411) and the part positioning column (413) through threads, the part positioning column (413) can move on the connecting rod (412), and the connecting rod (412) can rotate around the circumference of the fixing column (411).

4. A universal milling machine tool fixture with a nut clamping mechanism according to claim 3, characterized in that a plurality of auxiliary holes (35) are arranged on the clamping part (3), and cushion blocks (351) or support columns (352) can be arranged in the auxiliary holes (35) according to clamping requirements.

5. The universal milling machine tool fixture with the nut clamping mechanism according to claim 4, wherein two auxiliary holes (35) are respectively formed in parallel on the left side and the right side of the clamping hole (31).

6. The universal milling machine tool fixture with the nut clamping mechanism according to claim 4, wherein an auxiliary hole (35) is formed below the clamping hole (31).