CN216264613U

CN216264613U - Shaft workpiece positioning and clamping tool

Info

Publication number: CN216264613U
Application number: CN202122623635.5U
Authority: CN
Inventors: 姚明; 姚大树; 陈宝; 邓锋
Original assignee: Anhui Zhongbo Machinery Manufacturing Co ltd
Current assignee: Anhui Zhongbo Machinery Manufacturing Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-12
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a shaft workpiece positioning and clamping tool, which comprises a bridge plate, a first positioning V-shaped block and a second positioning V-shaped block, wherein two ends of the bridge plate are respectively provided with a fixing lug, the fixing lugs arranged at the two ends of the bridge plate are respectively provided with two U-shaped grooves in parallel, the first positioning V-shaped block and the second positioning V-shaped block are respectively vertically arranged on the upper end surface of the bridge plate, the first positioning V-shaped block and the second positioning V-shaped block are respectively provided with a plurality of trapezoidal grooves, workpieces are arranged in the trapezoidal grooves, a pressing hole is arranged at the position right below the adjacent workpieces on the bridge plate, a pressing bolt is arranged in the pressing hole, and a pressing plate is sleeved on the pressing bolt. Has high practicability and popularization significance.

Description

Shaft workpiece positioning and clamping tool

Technical Field

The utility model relates to the technical field of machining, in particular to a shaft workpiece positioning and clamping tool.

Background

The shaft part is one of common structures in mechanical parts, is mainly used for supporting transmission parts, transmitting torque or bearing load, can be divided into optical axis, stepped shaft, special-shaped shaft and other types according to different shapes, and usually relates to the processing procedures of an outer cylindrical surface, a conical surface, an inner hole, threads and other corresponding end surfaces of a concentric shaft when the shaft part is processed, so that various lathes and tools can be used.

In the traditional shaft part machining process, due to the limitation of various reasons, the machining efficiency is always poor, the processes of clamping and loosening parts and switching cutters are continuously carried out, a large amount of time is wasted, at the moment, manufacturers begin to research and develop special fixtures suitable for self production, and in various special fixtures full of various types, the clamping precision, the using effect, the production efficiency and the like of the fixtures are not enough, so that the fixtures still have large lifting space, especially the general applicability, and the appearance design of the special fixtures which are too stiff can not be used for the part machining processes with different specifications and sizes, so that more resource consumption is brought to enterprises.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the utility model provides an axle type work piece location centre gripping frock to solve above defect.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the utility model provides an axle type work piece location centre gripping frock, includes bridge plate, first location V type piece, second location V type piece, the both ends of passing the bridge plate all are equipped with fixed ear, set up at the bridge plate both ends all are equipped with two U type grooves side by side on the fixed ear, first location V type piece and the equal perpendicular setting of second location V type piece are on the up end of passing the bridge plate, all be equipped with a plurality of dovetail groove on first location V type piece and the second location V type piece, the dovetail groove is equipped with the work piece the position under the adjacent work piece is equipped with the pressure hole on the bridge plate, be equipped with clamp bolt in the pressure hole, the cover has the clamp plate on the clamp bolt, two adjacent work pieces pass through clamp plate cooperation clamp bolt fix in the dovetail groove.

Preferably, six trapezoidal grooves are formed in each of the first positioning V-shaped block and the second positioning V-shaped block.

Preferably, the both ends of first location V type piece all are equipped with elevating gear, elevating gear includes lift groove, lift seat, the lift groove is the fluting of setting on the bridge deck, first location V type piece sets up at the lift inslot, the lift seat sets up the both sides at the lift groove, be equipped with the lead screw in the lift seat, be equipped with the slider on the lead screw, the both ends of first location V type piece all are equipped with the slider groove, the slider stretches into the slider inslot.

Preferably, the top end of the screw rod extends out of the lifting seat, and the top end of the screw rod is provided with an inner hexagonal groove.

Preferably, the slider slot has a slot length greater than the length of the slider.

The utility model has the beneficial effects that:

the shaft workpiece positioning and clamping tool can simultaneously clamp six workpieces and finish the end face machining process of the six workpieces, greatly improves the machining efficiency of shaft parts, the trapezoidal grooves are formed in the first positioning V-shaped block and the second positioning V-shaped block, the centering precision of the workpieces can be effectively guaranteed, the machining quality is improved, meanwhile, the lifting devices are designed at the two ends of the first positioning V-shaped block, the lifting function of the first positioning V-shaped block is achieved, the universality of the clamping tool is improved, the shaft workpiece positioning and clamping tool has the advantages of being simple in structure, reliable in performance, convenient to clamp and the like on the whole, the machining process of multiple workpieces can be finished in one clamping process, and the shaft workpiece positioning and clamping tool has high practicability and popularization significance.

Drawings

FIG. 1: the utility model has a structure schematic diagram;

FIG. 2: the utility model is a schematic diagram of a gap bridge plate structure;

FIG. 3: the lifting device of the utility model is schematically structured.

Detailed Description

The following description of the embodiments of the present invention is made with reference to the accompanying drawings 1 to 3:

as shown in fig. 1-3, a shaft workpiece positioning and clamping tool comprises a bridge plate 1, a first positioning V-shaped block 2 and a second positioning V-shaped block 3, wherein fixing lugs 11 are arranged at two ends of the bridge plate 1, two U-shaped grooves 111 are arranged on the fixing lugs 11 arranged at two ends of the bridge plate 1 side by side, the bridge plate 1 can be installed on a machining center by assembling bolts in the U-shaped grooves 111, the first positioning V-shaped block 2 and the second positioning V-shaped block 3 are vertically arranged on the upper end surface of the bridge plate 1, a plurality of trapezoidal grooves 21 are arranged on the first positioning V-shaped block 2 and the second positioning V-shaped block 3, the positions of the trapezoidal grooves 21 arranged on the different positioning V-shaped blocks are aligned with each other, a workpiece 7 is arranged in the trapezoidal grooves 21, a pressing hole 15 is arranged at a position right below the adjacent workpiece 7 on the bridge plate 1, a pressing bolt 5 is arranged in the pressing hole 15, a pressing plate 4 is sleeved on the pressing bolt 5, two adjacent workpieces 7 are fixed in the trapezoidal groove 21 through the pressing plate 4 in cooperation with the pressing bolt 5, and the trapezoidal groove 21 and the pressing plate 4 form three-point support for the surface of the workpiece 7, so that the workpiece 7 is guaranteed to be stably and effectively supported.

The trapezoidal groove 21 is provided with six on the first positioning V-shaped block 2 and the second positioning V-shaped block 3, six workpieces 7 can be clamped simultaneously, the size of the gap bridge plate 1 can be increased due to too much clamping of the workpieces 7, and the improvement of the processing efficiency of the workpieces 7 is not obvious due to too little clamping.

In order to improve the universality of the clamping tool, the two ends of the first positioning V-shaped block 2 are additionally provided with lifting devices 6, each lifting device 6 comprises a lifting groove 12 and a lifting seat 16, each lifting groove 12 is a groove arranged on the bridge plate 1, the first positioning V-shaped block 2 is arranged in each lifting groove 12, each lifting seat 16 is arranged on each side of each lifting groove 12, each lifting seat 16 is internally provided with a screw rod 61, each screw rod 61 is provided with a slide block 62, the two ends of each first positioning V-shaped block 2 are respectively provided with a slide block groove 26, each slide block 62 extends into each slide block groove 26, the top end of each screw rod 61 extends out of each lifting seat 16, the top end of each screw rod 61 is provided with an inner hexagonal groove, when a tool is used for rotating each screw rod 61, each slide block 62 arranged on each screw rod 61 can move up and down on each screw rod 61, so as to drive each first positioning V-shaped block 2 to move up and down, so as to realize the clamping function aiming at various stepped shafts, and the groove length of each slide block 26 is larger than the length of each slide block 62, if the sliding block 62 is just clamped into the sliding block groove 26 without allowance, the height adjustment work for the first positioning V-shaped block 2 is difficult to perform, when the height adjustment is performed on the first positioning V-shaped block 2, if the heights of the left and right ends of the first positioning V-shaped block 2 are not consistent, the first positioning V-shaped block 2 is clamped into the lifting groove 12, so that the first positioning V-shaped block 2 needs to have a certain moving allowance in the lifting groove 12, under normal conditions, the sliding block 62 is supported at the top end of the sliding block groove 26 to form a support, when the height adjustment of the sliding block 62 is needed, the left and right sliding blocks 62 can be alternately adjusted by taking the length of the remaining groove of the sliding block groove 26 as a single maximum adjustment distance, so as to achieve stable and smooth lifting of the first positioning V-shaped block 2, in the production process of the present invention, the sliding block 62 can be artificially set as an initial position when being at the highest or lowest limit position on the screw rod 61, the heights of the first positioning V-block 2 and the second positioning V-block 3 are identical at this time to maintain the most initial centering accuracy.

The utility model relates to a shaft workpiece positioning and clamping tool, which is characterized in that in the actual working process, firstly, bolts are matched with U-shaped grooves 111 arranged at two ends of a gap bridge plate 1 to fix the gap bridge plate 1 on a machining center, then, a workpiece 7 is placed into a trapezoidal groove 21 in order, then, a pressing plate 4 is installed, the position of the workpiece 7 is adjusted, a pressing bolt 5 is screwed, the stable and effective clamping of the workpiece 7 is ensured, meanwhile, the transition end surface or a shaft collar of a stepped shaft on the workpiece 7 is supported on the side surface of the pressing plate 4 to perform auxiliary positioning on the workpiece 7, after the workpiece 7 is fixed, the two ends of the shaft can be subjected to processes such as cutting and milling, if the height of a first positioning V-shaped block 2 needs to be lifted up, then, a screw rod 61 arranged in lifting seats 16 at two ends of the first positioning V-shaped block 2 is sequentially rotated and adjusted, the slide block 62 is lifted to a proper height, and if the height of the first positioning V-shaped block 2 needs to be reduced, the two screw rods 61 are directly and sequentially adjusted by rotation.

The utility model is described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the above embodiments, and it is within the scope of the utility model to adopt the method concept and technical solution of the utility model to make such insubstantial modifications, or to directly apply the concept and technical solution of the utility model to other applications without any modification.

Claims

1. The shaft workpiece positioning and clamping tool is characterized by comprising a bridge plate (1), a first positioning V-shaped block (2) and a second positioning V-shaped block (3), wherein fixing lugs (11) are arranged at two ends of the bridge plate (1), two U-shaped grooves (111) are arranged on the fixing lugs (11) arranged at two ends of the bridge plate (1) side by side, the first positioning V-shaped block (2) and the second positioning V-shaped block (3) are vertically arranged on the upper end surface of the bridge plate (1), a plurality of trapezoidal grooves (21) are arranged on the first positioning V-shaped block (2) and the second positioning V-shaped block (3), a workpiece (7) is arranged in each trapezoidal groove (21), a compression hole (15) is arranged at a position right below the adjacent workpiece (7) on the bridge plate (1), a compression bolt (5) is arranged in each compression hole (15), and a compression plate (4) is sleeved on each compression bolt (5), two adjacent workpieces (7) are fixed in the trapezoidal groove (21) through the pressing plate (4) in cooperation with the pressing bolt (5).

2. The shaft workpiece positioning and clamping tool according to claim 1, wherein six trapezoidal grooves (21) are formed in each of the first positioning V-shaped block (2) and the second positioning V-shaped block (3).

3. The shaft workpiece positioning and clamping tool according to claim 1, wherein lifting devices (6) are arranged at two ends of the first positioning V-shaped block (2), each lifting device (6) comprises a lifting groove (12) and a lifting seat (16), each lifting groove (12) is a groove formed in the bridge passing plate (1), the first positioning V-shaped block (2) is arranged in each lifting groove (12), each lifting seat (16) is arranged at two sides of each lifting groove (12), a lead screw (61) is arranged in each lifting seat (16), a sliding block (62) is arranged on each lead screw (61), sliding block grooves (26) are arranged at two ends of each first positioning V-shaped block (2), and each sliding block (62) extends into each sliding block groove (26).

4. The shaft workpiece positioning and clamping tool according to claim 3, wherein the top end of the screw rod (61) extends out of the lifting seat (16), and the top end of the screw rod (61) is provided with an inner hexagonal groove.

5. The shaft workpiece positioning and clamping tool as claimed in claim 3, wherein the length of the slider groove (26) is greater than the length of the slider (62).