Portable replaceable equal-height sizing block

Abstract

The utility model belongs to the technical field of machining, and discloses a portable replaceable equal-height sizing block. Comprising a sizing block body and strong magnetic sheets. The sizing block body is a steel hexahedron, and a circular groove is machined in the middle of the hexahedron. The strong magnetic sheets are round sheets made of strong magnetic materials; the diameter and the thickness of the strong magnetic sheet are smaller than those of the circular groove; the strong magnetic sheet is arranged in the circular groove, and the strong magnetic sheet and the circular groove are connected through magnetic force and attracted to a chuck of the horizontal lathe through magnetic force. A traditional horizontal axle part clamping mode is changed, the workpiece clamping depth is not limited by the clamping jaw depth any more, and high practicability is achieved; time and labor are saved, and meanwhile it is guaranteed that parts are clamped firmly; machining precision is improved, clamping errors are reduced, and the qualified rate of parts is increased; and the machining speed is increased, and the secondary alignment time and the subsequent polishing and finishing time of the part are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a portable and replaceable equal-height washer. Background Art

[0002] When clamping the workpiece on a vertical lathe, shims of equal height can be used in conjunction with the clamping jaws, which is convenient for aligning the workpiece and can adjust the length of the workpiece that needs to be clamped by adjusting the height of the shims. However, due to structural limitations, the horizontal lathe cannot use traditional shims of equal height. To ensure firm clamping and accurate alignment, the end face of the workpiece needs to be close to the bottom surface of the clamping jaws, so the clamping length of the workpiece is the length of the clamping jaws. Taking the CNC 63 lathe as an example, the chuck size is a 500mm four-jaw single-action chuck. The clamping length is 70mm when clamping with the positive jaws, and 25mm when clamping with the reverse jaws. If the length of the workpiece incoming chuck is less than the length of the jaws, two clampings are required when processing the outer circle, which can easily lead to tool connection on the outer circle, increase the number of work steps, and increase the processing time. Utility Model Content

[0003] Based on the design of a contour shim that can be used in a sleeping car and can be easily loaded and unloaded, the utility model proposes a portable and replaceable contour shim to achieve the purpose of quickly adjusting the clamping length of the workpiece during processing, reducing the processing steps and shortening the processing time.

[0004] The technical solution of the utility model is as follows: a portable and replaceable equal-height shim, comprising a shim body and a strong magnetic sheet; the shim body is a steel hexahedron, with a circular groove processed in the middle of the hexahedron; the strong magnetic sheet is a circular sheet of strong magnetic material; the diameter and thickness of the strong magnetic sheet are both smaller than the diameter and thickness of the circular groove; the strong magnetic sheet is placed in the circular groove, the two are connected by magnetic force, and are adsorbed on the chuck of the horizontal lathe by magnetic force.

[0005] The horizontal lathe comprises four chuck jaws in a horizontal and vertical direction, and portable and replaceable equal-height pads are magnetically attracted to each chuck jaw.

[0006] The length, width and height of the washer body are 35mm, 35mm and 5mm respectively; the diameter of the circular groove is 26mm and the depth is 4mm; the diameter of the strong magnetic sheet is 25mm and the thickness is 3mm.

[0007] The beneficial effects of the utility model are as follows: through the portable and replaceable equi-height shims, fast and simple clamping of the horizontal lathe is achieved, the traditional clamping method of horizontal lathe axle parts is changed, so that the clamping depth of the workpiece is no longer limited by the depth of the clamping claws, and it is more practical; it saves time and effort, and at the same time ensures the firmness of the clamped parts; it improves the processing accuracy, reduces the clamping error, and improves the part qualification rate; it increases the processing speed, saves the secondary alignment time, and the time for subsequent polishing and finishing of the parts; the shim group is easy to install and replace, the replacement cost after partial damage is low, and the interchangeability is strong; it can be used on conventional horizontal lathes, and it is universal and general; the manufacturing cost is low, and the workshop can process and manufacture it by itself, and the additional cost investment is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 Front view of installing portable interchangeable height-conforming shims for horizontal lathes;

[0009] Figure 2 Side view of installing portable interchangeable height-conforming shims for horizontal lathes;

[0010] Figure 3 This is a schematic diagram of the main body of the pad. DETAILED DESCRIPTION

[0011] When clamping the workpiece on a vertical lathe, shims of equal height can be used in conjunction with the clamping jaws, which is convenient for aligning the workpiece and can adjust the length of the workpiece that needs to be clamped by adjusting the height of the shims. However, due to structural limitations, the horizontal lathe cannot use traditional shims of equal height. To ensure firm clamping and accurate alignment, the end face of the workpiece needs to be close to the bottom surface of the clamping jaws, so the clamping length of the workpiece is the length of the clamping jaws. Taking the CNC 63 lathe as an example, the chuck size is a 500mm four-jaw single-action chuck. The clamping length is 70mm when clamping with the positive jaws, and 25mm when clamping with the reverse jaws. If the length of the workpiece incoming chuck is less than the length of the jaws, two clampings are required when processing the outer circle, which can easily lead to tool connection on the outer circle, increase the number of work steps, and increase the processing time.

[0012] The main purpose of the utility model is to design a shim with equal height that can be used for a sleeping car and can be conveniently loaded and unloaded, so as to achieve the purpose of quickly adjusting the clamping length of the workpiece during processing, reducing the processing steps and shortening the processing time.

[0013] The utility model is mainly designed to design a portable and replaceable equal-height shim which is convenient for loading and unloading on a horizontal chuck. The shim consists of a shim body and a strong magnetic sheet. The shim body is a 35*35*5mm steel hexahedron, on which a circular groove with a diameter of Φ26mm and a depth of 4mm is processed; the strong magnetic sheet is a circular sheet of strong magnetic material with a diameter of Φ25mm and a thickness of 3mm. When in use, the strong magnetic sheet is placed in the circular groove of the shim body, and the two are connected by magnetic force and adsorbed on the lathe chuck by magnetic force.

[0014] In order to ensure the consistent height of the shim groups, the thickness of the shims is fine-ground by a grinder. Considering the large number and variety of workpieces processed by CNC horizontal lathes, shims of different heights need to be replaced frequently, so the chuck and the shims are fixed by magnetic attraction.

[0015] Take the 5mm thick shim set as an example. After being installed on the chuck jaws through magnetic attraction, the part can not only protrude 5mm more, but also the end face of the part clamping end can be firmly against the shim. If the shim is not used and the part is directly pulled out, the end face of the part clamping end is suspended, which is a one-way positioning that is not firm. At the same time, because there is no reference at the back, the part is in a twisted state and requires additional precise alignment. After using the shim, these two deficiencies can be solved, and the processing is convenient and quick.

[0016] The use of shim sets can ensure that the workpiece is clamped in one step. Shim sets can also be made into various sets of sets with thickness ranging from 2mm to 20mm. When clamping parts, the clamping length can be adjusted from 5mm to 23mm. The magnetic clamping method can ensure the quick switching and superposition of shim sets.

[0017] It is suitable for processing a variety of parts, solves the previous complex processing, and makes processing faster, more convenient and more accurate. In particular, it improves the processing accuracy, and has a strong advantage for precision parts that need to be completed in one more processing, or precision parts with coaxiality and verticality within 0.01mm.

[0018] The utility model effectively reduces the number of workpiece clamping times, and for high-precision products, the processing efficiency can be increased by more than 40%, saving a lot of production time and labor costs;

[0019] Use the corresponding thickness specification shim set, and the equal height shims are installed on the disc clamping jaws through strong magnetic sheets. The replacement is simple, convenient and fast, and the processing efficiency is greatly improved at a lower production cost.

[0020] By designing a set of equal-height shims for vertical lathes, the function of adjusting the clamping depth is realized, and it can be selected or superimposed according to the actual processing requirements of different workpieces;

[0021] It is suitable for processing various parts of special equipment and has broad application prospects; it is suitable for various horizontal lathes and is easy to promote and apply.

Claims

1. A portable and replaceable contour pad, characterized in that: The portable and replaceable contour shim includes a shim body and a strong magnetic sheet; the shim body is a steel hexahedron with a circular groove processed in the middle of the hexahedron; the strong magnetic sheet is a circular sheet made of strong magnetic material; the diameter and thickness of the strong magnetic sheet are both smaller than the diameter and thickness of the circular groove; the strong magnetic sheet is placed in the circular groove, the two are connected by magnetic force, and are adsorbed on the chuck of the horizontal lathe by magnetic force.

2. The portable and replaceable contour pad according to claim 1, characterized in that: The horizontal lathe comprises four chuck jaws in a horizontal and vertical direction, and portable and replaceable equal-height pads are magnetically attracted to each chuck jaw.

3. The portable and replaceable contour pad according to claim 1 or 2, characterized in that: The length, width and height of the washer body are 35mm, 35mm and 5mm respectively; the diameter of the circular groove is 26mm and the depth is 4mm; the diameter of the strong magnetic sheet is 25mm and the thickness is 3mm.

Images