CN213136472U - Fixing device is used in precision bearing processing - Google Patents

Abstract

The utility model discloses a fixing device is used in precision bearing processing, including bearing spare, bottom plate, stand and the more than one clamping mechanism who is used for processing, on the clamping mechanism was located to bearing spare cover, clamping mechanism comprises first clamp splice, second clamp splice, screw rod and nut, all transversely runs through the through-hole of second clamp splice on the second clamp splice, is equipped with the spout on the stand towards clamping mechanism's a side perpendicularly, and slidable mounting has the slider in the spout, and the elevating system of adjusting the slider height is installed to the slider upper end, and screw rod one end is all installed on first clamp splice, and the other end all passes the through-hole setting. The utility model has simple structure, can effectively clamp the outer side of the inner ring of the bearing piece through the first clamping block and the second clamping block, avoids falling off, can extrude and fix the inner ring of the bearing piece outwards, and increases the stability; the clamping mechanism is vertically moved up and down in parallel through the lifting mechanism, so that the contact area between the clamping mechanism and the bearing piece is prevented from being reduced, and the clamping stability is improved.

Description

Fixing device is used in precision bearing processing

Technical Field

The utility model relates to a bearing processing technology field, concretely relates to fixing device is used in precision bearing processing.

Background

The bearing is a component for fixing and reducing the load friction coefficient in the mechanical transmission process, and also can be said to be a component for reducing the friction coefficient in the power transmission process and keeping the center position of the shaft fixed when other components generate relative motion on the shaft, and the bearing machining is a general term of the process for converting the bearing raw material or semi-finished product into the target requirement through certain processes and modes.

The bearing need press from both sides tight to spare part in the course of working, but the bearing outside is not convenient for process to common tight frock of clamp because common clamping device all fixes the bearing from the outside, and in the bearing course of working, most are fixed it from the bearing outside through flat-nose pliers, but because flat-nose pliers are fixed not very firm to the bearing.

Therefore, patent CN209021929U discloses a fixing device for precision bearing processing, which comprises a base, the top fixedly connected with backup pad of base, the connecting rod that the equal fixedly connected with symmetry in left top of backup pad and bottom set up, be located through connecting plate fixed connection between the left side of two connecting rods of homonymy, the left side of backup pad just is located the fixed block that the position fixedly connected with symmetry between two connecting plates set up.

But the movable block in the above-mentioned patent rotates with the fixed axle, and after rotating, the movable block can be the slope form setting, as shown in fig. 1 for press from both sides the very little of area of contact of tight piece and bearing spare inner circle, and the unevenness, influence the fastness of centre gripping, and only outwards press from both sides the inner circle of bearing spare tightly, can not spacing bearing spare, make the bearing spare remove about can, thereby drop easily or rock.

Disclosure of Invention

The utility model aims to solve the technical problem that a fixing device is used in precision bearing processing is provided to solve the problem of proposing among the above-mentioned background art.

The utility model discloses a realize through following technical scheme: a fixing device for machining a precision bearing comprises a bearing piece, a bottom plate, an upright post and more than one clamping mechanism, wherein the clamping mechanisms are vertically and oppositely arranged one above the other, the bearing piece is sleeved on the upper and lower clamping mechanisms, each clamping mechanism consists of a first clamping block, a second clamping block, a screw rod and a nut, through holes of the second clamping blocks transversely penetrate through the second clamping blocks, a sliding groove is vertically formed in one side surface, facing the clamping mechanisms, of the upright post, a sliding block is slidably mounted in the sliding groove, a lifting mechanism for adjusting the height of the sliding block is mounted at the upper end of the sliding block, one end of the screw rod is mounted on the first clamping block, the other end of the screw rod penetrates through the through holes, the other end of the screw rod above the sliding block is mounted on the upright post, the nuts are in threaded connection with the screw rod, one end faces of the nuts are all abutted to the outer wall surface of the second, The second clamping block is clamped and fixed, and the bottom plate is arranged at the lower end of the upright post.

As an optimized technical scheme, the first clamping block and the second clamping block are arranged in an L-shaped structure, rubber layers are arranged on opposite surfaces of the first clamping block and the second clamping block, the rubber layers on one vertical end of the first clamping block and the second clamping block are abutted to the outer side surface of the inner ring of the bearing piece, and the rubber layers on one transverse end of the first clamping block and the second clamping block are abutted to the inner ring surface of the inner ring of the bearing piece.

According to the preferable technical scheme, the lifting mechanism comprises a ball bearing, a stud and a hand wheel, the top surface of the upright post is provided with a screw hole communicated with the sliding groove, the stud is in threaded connection with the screw hole, the ball bearing is installed on the top surface of the sliding block in an embedded mode, the lower end of the stud is installed in an inner ring of the ball bearing, and the hand wheel is installed at the upper end of the stud.

As the preferred technical scheme, all be equipped with the keyway on the outer wall face of screw rod axially, install the key with keyway assorted on the internal wall face of through-hole, key slidable mounting is in the keyway.

As a preferred technical scheme, more than one poking piece for rotating the nut is arranged on the outer ring surface of the nut.

As the preferred technical scheme, the cross sections of the sliding block and the sliding groove are both arranged in a dovetail structure, and the sliding block and the sliding groove are matched.

The utility model has the advantages that:

1. the first clamping block and the second clamping block which are in L-shaped structures can effectively clamp the outer side of the inner ring of the bearing piece, so that the bearing piece is prevented from falling off, the inner ring of the bearing piece can be extruded and fixed outwards, and the stability is improved;

2. the clamping mechanism vertically moves up and down in parallel through the lifting mechanism, so that the contact area between the clamping mechanism and the bearing piece is prevented from being reduced, and the clamping stability is improved;

3. the rubber layer can avoid scraping or damaging the bearing piece so as to ensure the precision of the bearing piece;

4. can outwards open or inwards press from both sides tight first, second clamp splice can adapt to and the bearing spare of different width, and can adapt to the bearing spare of different internal diameters through the clamping mechanism that can reciprocate, increased application range.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art structure;

fig. 2 is a schematic view of the overall structure of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figure 2, the utility model discloses a fixing device for processing precision bearing, which comprises a bearing piece 13 for processing, a bottom plate 1, a stand column 5 and more than one clamping mechanism, wherein the clamping mechanisms are vertically and oppositely arranged one above the other, the bearing piece 13 is sleeved on the upper and lower clamping mechanisms, each clamping mechanism consists of a first clamping block 15, a second clamping block 11, a screw 8 and a nut 9, the second clamping block 11 is transversely provided with a through hole which penetrates through the second clamping block 11, a side surface of the stand column 5 facing the clamping mechanism is vertically provided with a chute 2, a slide block 3 is slidably arranged in the chute 2, the upper end of the slide block 3 is provided with a lifting mechanism for adjusting the height of the slide block 3, one end of the screw 8 is arranged on the first clamping block 15, the other end of the screw passes through hole, the other end of the screw 8 positioned above is arranged on the slide block 3, the other end of, the nuts 9 are in threaded connection with the screw rods 8, one end face of each nut 9 abuts against the outer wall face of the second clamping block 11, the bearing piece 13 is clamped and fixed through the first clamping block 15 and the second clamping block 11, and the bottom plate 1 is installed at the lower end of the upright post 5.

In this embodiment, the first clamping block 15 and the second clamping block 11 are both in an "L" shaped structure, the rubber layer 14 is installed on the opposite surface of the first clamping block 15 and the second clamping block 11, the rubber layer 14 at the vertical end of the first clamping block 15 and the second clamping block 11 is both abutted against the outer side surface of the inner ring of the bearing piece 13, the rubber layer 14 at the horizontal end of the first clamping block 15 and the second clamping block 11 is both abutted against the inner ring surface of the inner ring of the bearing piece 13, the rubber layer can avoid the direct contact with the bearing piece between the first clamping block and the second clamping block, and the bearing piece is prevented from being crushed or scraped.

In this embodiment, the lifting mechanism includes a ball bearing 4, a stud 6 and a hand wheel 7, the top surface of the upright post 5 is provided with a screw hole communicated with the chute 2, the stud 6 is connected with the screw hole in a threaded manner, the ball bearing 4 is embedded and installed on the top surface of the slider 3, the lower end of the stud 6 is installed in an inner ring of the ball bearing 4, and the hand wheel 7 is installed at the upper end of the stud 6.

In this embodiment, equal axial is equipped with the keyway on the outer wall of screw rod 8, install on the internal face of through-hole with keyway assorted key, key slidable mounting in the keyway, the effectual second clamp splice location of having avoided the second clamp splice to rotate along the screw rod, make the second clamp splice can only be along the horizontal round trip movement of keyway.

In this embodiment, the outer ring surface of the nut 9 is provided with more than one poking piece 12 for rotating the nut, which facilitates the application of force, thereby facilitating the rotation of the nut.

In this embodiment, the cross section of slider 3 and spout 2 all is the setting of dovetail structure, and the slider breaks away from the spout in 3 and the 2 phase-matchs of spout, having avoided the slider.

Firstly, the distance between a first clamping block and a second clamping block is adjusted according to the width of an inner ring of a bearing piece, the second clamping block is moved along a key groove during adjustment, the bearing piece is sleeved on a clamping mechanism, the inner ring of the bearing piece is arranged between the first clamping block and the second clamping block, at the moment, a shifting sheet is rotated, the nut is driven by the rotation of the shifting sheet, the second clamping block is extruded leftwards by the rotation of the nut, the second clamping block is moved leftwards along the key groove until the outer side surface of the inner ring of the bearing piece is clamped and fixed inwards, then the distance between the upper clamping mechanism and the lower clamping mechanism is adjusted according to the inner diameter of the bearing piece, a hand wheel is rotated during adjustment, a stud is driven by the rotation of the hand wheel, the stud is moved upwards along a screw hole, a sliding block is driven by the movement of the stud, the sliding block is moved upwards along the sliding groove, the screw rod, the first clamping block and the second clamping block above are driven by the movement of the sliding, until the inner ring of the bearing element is clamped.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (6)

1. The utility model provides a fixing device is used in precision bearing processing which characterized in that: comprises a bearing piece (13) for processing, a bottom plate (1), an upright post (5) and more than one clamping mechanism, wherein the clamping mechanisms are vertically and oppositely arranged one above the other, the bearing piece (13) is sleeved on the upper and lower clamping mechanisms, each clamping mechanism consists of a first clamping block (15), a second clamping block (11), a screw rod (8) and a nut (9), through holes of the second clamping blocks (11) transversely penetrate through the second clamping blocks (11), a sliding groove (2) is vertically arranged on one side surface of the upright post (5) facing the clamping mechanism, a sliding block (3) is slidably arranged in the sliding groove (2), a lifting mechanism for adjusting the height of the sliding block (3) is arranged at the upper end of the sliding block (3), one end of the screw rod (8) is arranged on the first clamping block (15), the other end of the screw rod (8) penetrates through the through holes, the other end of the screw rod (8) positioned above is arranged on the sliding block (3), the other end of the, the nuts (9) are in threaded connection with the screw rods (8), one end face of each nut (9) is abutted to the outer wall face of the second clamping block (11), the bearing piece (13) is clamped and fixed through the first clamping block and the second clamping block (15 and 11), and the bottom plate (1) is installed at the lower end of the upright post (5).

2. The fixture for precision bearing machining according to claim 1, characterized in that: the first clamping block (15) and the second clamping block (11) are arranged in an L-shaped structure, a rubber layer (14) is arranged on the opposite surface of the first clamping block (15) and the opposite surface of the second clamping block (11), the rubber layer (14) on one vertical end of the first clamping block (15) and the second clamping block (11) is abutted to the outer side surface of the inner ring of the bearing piece (13), and the rubber layer (14) on one transverse end of the first clamping block (15) and the second clamping block (11) is abutted to the inner ring surface of the inner ring of the bearing piece (13).

3. The fixture for precision bearing machining according to claim 1, characterized in that: the lifting mechanism comprises a ball bearing (4), a stud (6) and a hand wheel (7), a screw hole communicated with the sliding groove (2) is formed in the top surface of the upright post (5), the stud (6) is connected with the screw hole in a threaded mode, the ball bearing (4) is installed on the top surface of the sliding block (3) in an embedded mode, the lower end of the stud (6) is installed in an inner ring of the ball bearing (4), and the hand wheel (7) is installed at the upper end of the stud (6).

4. The fixture for precision bearing machining according to claim 1, characterized in that: the outer wall surface of the screw rod (8) is axially provided with key grooves, the inner wall surface of the through hole is provided with keys matched with the key grooves, and the keys are slidably arranged in the key grooves.

5. The fixture for precision bearing machining according to claim 1, characterized in that: more than one poking sheet (12) for rotating the nut is arranged on the outer ring surface of the nut (9).

6. The fixture for precision bearing machining according to claim 1, characterized in that: the cross sections of the sliding block (3) and the sliding groove (2) are both arranged in a dovetail structure, and the sliding block (3) and the sliding groove (2) are matched.

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