Cylindrical shell positioning jig

Abstract

The utility model relates to a cylindrical machine shell positioning jig which comprises a base, a positioning device and a positioning device. The bottom of the positioning shaft core is detachably arranged on the base, the positioning shaft core is provided with a main shaft capable of being inserted into a machine shell product, and a flange capable of being connected with a groove position of the machine shell product in a clamped mode is arranged on the outer side of the bottom of the positioning shaft core in a protruding mode. According to the cylindrical shell positioning jig, the shell can be sleeved and positioned, force does not need to be applied to the surface of the shell, and therefore the shell is prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to auxiliary positioning device technical field, especially to the cylindrical machine shell positioning fixture. BACKGROUND

[0002] Some castings are completed by mold casting, and then surface treatment and polishing processing are carried out. For polishing processing of cylindrical machine shell castings, the outer part of the shell that does not need to be processed is generally clamped by a jaw, and then CNC processing is performed. This way of fixing the cylindrical shell part is easy to damage the surface of the part, and it is difficult to grasp the clamping force when fixing. SUMMARY

[0003] Therefore, it is necessary to provide a cylindrical machine shell positioning fixture that can position the shell without applying force to the surface of the shell, thereby avoiding damage to the shell, in view of the problem that the cylindrical machine shell part is easily damaged when clamped and fixed.

[0004] A cylindrical machine shell positioning fixture, comprising:

[0005] a base, which can be fixedly installed on a machine tool; and

[0006] a positioning shaft core, which is detachably provided on the base, has a main shaft that can be inserted into the inside of a shell product, and has a flange protruding outward from the bottom of the positioning shaft core and capable of being clamped with a slot of the shell product.

[0007] The cylindrical machine shell positioning fixture is positioned and installed on the machine tool through the base, the main shaft of the positioning shaft core is directly inserted from the top of the shell product, and the flange on the bottom of the positioning shaft core can be clamped with the slot at the bottom of the shell product to prevent the shell product from rotating during processing. Since the shell product is positioned by sleeving, no force needs to be applied to the surface of the shell product, thereby effectively preventing damage to the shell product.

[0008] In one embodiment, the main shaft is cylindrical.

[0009] In one embodiment, the positioning shaft core further comprises an intermediate body, the top of the intermediate body is provided with the main shaft, the intermediate body is connected with the base, the cross-sectional area of the intermediate body is greater than that of the main shaft, and the outer side of the intermediate body protrudes and is provided with the flange.

[0010] In one embodiment, the intermediate body is provided with a missing slot on the outer side thereof and spaced from the flange.

[0011] In one embodiment, the missing slot is formed by recessing inward from the outer side of the intermediate body, and the recessing depth of each position of the missing slot is consistent.

[0012] In one of the embodiments, the positioning shaft core further comprises a base, the top of the base is connected with the bottom of the intermediate body, the bottom of the base is connected with the pedestal, and the cross-sectional area of the base is larger than that of the intermediate body.

[0013] In one of the embodiments, the bottom surface of the flange is connected with the top surface of the base, the cross-sectional shape of the intermediate body and the base is circular, and the surface of the flange away from the intermediate body is arc-shaped and flush with the outer surface of the base.

[0014] In one of the embodiments, an anti-shaking assembly is further included, which is detachably arranged at the top of the main shaft and abuts against the cavity wall of the inner cavity of the top of the machine shell product.

[0015] In one of the embodiments, the anti-shaking assembly comprises an anti-shaking body and a locking piece, the anti-shaking body is connected with the main shaft through the locking piece, and the anti-shaking body abuts against the inner cavity of the machine shell product.

[0016] In one of the embodiments, the top of the main shaft is provided with a groove, the bottom of the anti-shaking body is provided with a protruding convex strip, and the convex strip is inserted into the groove. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of a cooperation embodiment of the positioning jig and the machine shell.

[0018] Figure 2 It is an exploded structural schematic view. Figure 1

[0019] Figure 3 It is a structural schematic view of one embodiment of the positioning jig.

[0020] In the drawings, the components represented by the numbers are listed as follows:

[0021] 100, cylindrical machine shell positioning jig; 1, pedestal; 2, positioning shaft core; 21, main shaft; 211, threaded hole; 212, groove; 22, flange; 23, intermediate body; 24, missing slot; 25, base; 3, anti-shaking assembly; 31, anti-shaking body; 311, convex strip; 32, locking piece; 200, machine shell product; 201, slot. DETAILED DESCRIPTION

[0022] ​For the above purposes, features and advantages of the present application to be more apparent and understandable, the specific embodiments of the present application will be described below in detail with reference to the accompanying drawings. Obviously, the specific details described below are only some embodiments of the present application, and the present application can be implemented in many other embodiments different from those described herein. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.

[0025] Please refer to Figures 1 to 3 In an embodiment, a cylindrical shell positioning jig 100 includes a base 1 and a positioning shaft core 2. The base 1 can be fixedly installed on a machine tool by bolts. The positioning shaft core 2 is detachably provided on the top of the base 1 by screws, and has a main shaft 21 that can be inserted into the inside of a shell product 200. The bottom of the positioning shaft core 2 is provided with a flange 22 on the outside, which can be clamped with a slot 201 of the shell product 200.

[0026] The cylindrical shell positioning jig 100 is positioned and installed on the machine tool through the base 1, the main shaft 21 of the positioning shaft core 2 is directly inserted from the top of the shell product 200, and the flange 22 on the bottom of the positioning shaft core 2 can be clamped with the slot 201 on the bottom of the shell product 200, preventing the shell product 200 from rotating during processing. Since the shell product 200 is positioned by sleeving, no force needs to be applied to the surface of the shell product 200, thereby effectively avoiding damage to the shell product 200.

[0027] To match the shape of the shell product 200, the main shaft 21 is cylindrical, and the main shaft 21 and the inner cavity of the shell product 200 can form an insertion and fixed fit.

[0028] In another embodiment, the positioning shaft core 2 further comprises an intermediate body 23, the top of the intermediate body 23 is provided with the main shaft 21, and the bottom of the intermediate body 23 is connected with the base 1. In order to match the shape of the bottom of the inner cavity of the shell product 200, the intermediate body 23 is in a cylindrical shape, and the intermediate body 23 is coaxially arranged with the main shaft 21, the diameter of the intermediate body 23 is larger than that of the main shaft 21, and the flange 22 is protrudingly arranged on the circumferential outer side of the intermediate body 23.

[0029] Further, the circumferential outer side of the intermediate body 23 is provided with a missing groove 24 spaced from the flange 22, and the missing groove 24 is used for avoiding the structure of the bottom of the inner cavity of the shell product 200. The missing groove 24 is formed by inwardly recessing the outer side of the intermediate body 23, and the recessing depths of the missing groove 24 at different positions are consistent.

[0030] In another embodiment, the positioning shaft core 2 further comprises a base 25, the top of the base 25 is connected with the bottom of the intermediate body 23, the bottom of the base 25 is connected with the base 1, the base 25 is in a cylindrical shape, and the main shaft 21, the intermediate body 23 and the base 25 are coaxially arranged, and the diameter of the base 25 is larger than that of the intermediate body 23.

[0031] In an embodiment, the bottom surface of the flange 22 is connected with the top surface of the base 25, one side of the flange 22 away from the intermediate body 23 is in an arc shape and is flush with the outer side surface of the base 25.

[0032] In an embodiment, the cylindrical shell positioning jig 100 further comprises an anti-shaking assembly 3, which is detachably arranged on the top of the main shaft 21 and abuts against the cavity wall of the top inner cavity of the shell product 200. Since the shell product 200 has a certain length, the top of the shell product 200 is prone to shaking during polishing processing. By abutting the anti-shaking assembly 3 against the top inner cavity of the shell product 200, the anti-shaking assembly 3 and the positioning shaft core 2 form a fixed support structure for the whole shell product 200, which effectively prevents the shell product 200 from shaking and affecting the processing precision during processing.

[0033] In an embodiment, the anti-shaking assembly 3 comprises an anti-shaking body 31 and a locking piece 32, the anti-shaking body 31 is connected with the main shaft 21 through the locking piece 32, and the anti-shaking body 31 abuts against the inner cavity of the shell product 200. The locking piece 32 can be a screw, the top of the main shaft 21 is provided with a threaded hole 211, and the locking piece 32 is threadedly connected with the main shaft 21.

[0034] The top of the main shaft 21 is provided with a groove 212 in the radial direction, the bottom of the anti-shaking body 31 is protrudingly provided with a convex strip 311, and the convex strip 311 is inserted into the groove 212, which can effectively prevent the anti-shaking body 31 from shaking circumferentially after being connected with the main shaft 21.

[0035] The groove 212 is in the shape of a long strip and can pass through the center of the main shaft 21, the convex strip 311 is also in the shape of a long strip and passes through the center of the anti-shaking body 31, the center of the main shaft 21 is provided with a threaded hole 211, and the locking piece 32 is threadedly connected with the threaded hole 211 after passing through the center of the anti-shaking body 31, so that a more stable structure can be formed.

[0036] The technical features of the above-described embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0037] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications, substitutions and improvements can be made, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the claims.

Claims

1. A cylindrical housing positioning jig characterized by comprising: The utility model relates to a positioning shaft core for machine shell product, comprising: a base which can be fixedly installed on a machine tool; and a positioning shaft core which is detachably arranged on the base, has a main shaft which can be inserted into the inside of a machine shell product, and has a flange which is protrudingly arranged on the outside of the bottom of the positioning shaft core and can be clamped with a slot of the machine shell product.

2. The cylinder shell positioning jig according to claim 1, wherein The main shaft is in a cylindrical shape.

3. The cylinder shell positioning jig according to claim 1, wherein The positioning shaft core further comprises an intermediate body, the top of the intermediate body is provided with the main shaft, the intermediate body is connected with the base, the cross-sectional area of the intermediate body is larger than that of the main shaft, and the outside of the intermediate body is protrudingly provided with the flange.

4. The cylinder shell positioning jig according to claim 3, wherein The intermediate body is provided with a slot which is spaced from the flange.

5. The cylinder shell positioning jig according to claim 4, wherein The slot is formed by the inward recess of the outside of the intermediate body, and the recess depth of each position of the slot is consistent.

6. The cylinder shell positioning jig according to claim 3, wherein The positioning shaft core further comprises a base, the top of the base is connected with the bottom of the intermediate body, the bottom of the base is connected with the base, and the cross-sectional area of the base is larger than that of the intermediate body.

7. The cylinder shell positioning jig according to claim 6, wherein The bottom surface of the flange is connected with the top surface of the base, the cross-sectional shape of the intermediate body and the base is circular, one side of the flange which is away from the intermediate body is in an arc shape and is flush with the outside surface of the base.

8. The cylinder shell positioning jig according to claim 1, wherein Further comprising a shake-preventing assembly which is detachably arranged on the top of the main shaft and is in abutment with the cavity wall of the top inner cavity of the machine shell product.

9. The cylinder shell positioning jig according to claim 8, wherein The shake-preventing assembly comprises a shake-preventing body and a locking member, the shake-preventing body is connected with the main shaft through the locking member, and the shake-preventing body is in abutment with the inner cavity of the machine shell product.

10. The cylinder shell positioning jig according to claim 9, wherein The top of the main shaft is provided with a groove, the bottom of the shake-preventing body is protrudingly provided with a convex strip, and the convex strip is inserted into the groove.

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