CN112025000A

CN112025000A - Shaft gear clamp

Info

Publication number: CN112025000A
Application number: CN202010935554.6A
Authority: CN
Inventors: 陈飞
Original assignee: Wenzhou Huazhi Yuqiang Technology Co ltd
Current assignee: Ningbo Calbod Precision Machinery Co.,Ltd.
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2020-12-04
Anticipated expiration: 2040-09-08
Also published as: CN112025000B

Abstract

The invention relates to the technical field of gear machining, and particularly discloses a shaft gear clamp which comprises a base, wherein the upper surface of the base is rotatably connected with a central shaft, the central shaft is vertical to the base, a plurality of propelling blocks are fixed on the outer surface of the central shaft in a circular array manner, one side of each propelling block is an inclined edge, a plurality of grooves distributed in the circular array manner are formed in the surface of the base, a connecting rod is horizontally and movably connected in each groove, the connecting rod is vertically arranged, a horizontally arranged spring is fixed between each connecting rod and each groove, each connecting rod abuts against the inclined edge of each propelling block, a positioning block is fixed at the top end of each connecting rod, and an elastic sheet; the invention aims to solve the problem that the existing gear clamp cannot adjust the diameters of different axial holes.

Description

Shaft gear clamp

Technical Field

The invention relates to the technical field of gear machining, and particularly discloses a shaft type gear clamp.

Background

At present, automobile gears generally belong to mass professional production, and circular gears and bevel gears have wide representativeness. Need process again on gear fixture's the epaxial gear sleeve gear wheel machining during gear machining, the shaft hole diameter of different gears is different, and current gear fixture corresponds the gear of single shaft hole diameter, if need produce the gear that the shaft hole diameter is different, need change corresponding anchor clamps, and the commonality of anchor clamps is poor, and machining efficiency is low, and the investment of anchor clamps is big.

Disclosure of Invention

The invention aims to provide a shaft gear clamp to solve the problem that the existing gear clamp cannot adjust the diameters of different shaft holes.

In order to achieve the purpose, the basic scheme of the invention is as follows:

the utility model provides an axle type gear clamp, which comprises a base, the base upper surface is rotated and is connected the center pin, center pin perpendicular to base, circular array is fixed with a plurality of propulsion pieces on the center pin surface, one side of propulsion piece is the slope limit, the recess that a plurality of circular array distribute is seted up on the base surface, horizontal smooth sliding connection has the connecting rod in the recess, the vertical setting of connecting rod, be fixed with the spring that the level set up between connecting rod and the recess, the connecting rod offsets with the slope limit that impels the piece, the connecting rod top is fixed with the locating piece, the locating piece end fixing has the shell fragment of pressing the gear.

Optionally, the inside of the central shaft is hollow, a connecting groove is formed in the inner side wall of the central shaft, and a connecting block is vertically connected in a sliding manner in the connecting groove; the central shaft is in sliding contact with an adjusting rod, and the side wall of the adjusting rod is fixedly connected with the connecting block; the cavity has been seted up to center pin bottom, and the cavity inner wall is provided with the internal thread, adjusts pole lateral wall bottom and is provided with the external screw thread that matches with it, and external screw thread length is less than internal thread length.

Optionally, the positioning block comprises a connecting section and a fixing section, and the connecting section is fixed on the connecting rod; the four corners of the end surface of the connecting section facing the fixing section are respectively provided with a sliding chute, a sliding rod is fixed at the corresponding position on the fixing section, the sliding rods are connected in the sliding chutes in a sliding manner, and springs are fixed on the sliding rods; vertical sliding connection has the cardboard of L shape on the canned paragraph, and the bottom of cardboard is just to the recess, and is provided with the tooth on the vertical face of cardboard, rotates on the canned paragraph to be connected with the drive gear with cardboard meshing, is fixed with the rack with drive gear meshing on the linkage segment tip.

Optionally, the elastic sheet is arc-shaped, the outer surface of the elastic sheet is tangent to the fixed section, a gap exists between the bottom end of the elastic sheet and the upper surface of the base, a rubber layer is fixed on the inner surface of the elastic sheet, and the surface of the rubber layer is uneven; the both ends of surface are articulated to have the bracing piece in the elastic sheet, and the bracing piece is elastic telescopic link, and elastic telescopic link's tip articulates the both sides at the linkage segment respectively.

Optionally, the rectangular channel has been seted up to the both sides of recess, and the connecting rod bottom mounting has the rectangular block, and the both ends of rectangular block sliding connection respectively is in the rectangular channel of both sides, and the upper surface of rectangular block is bellied arcwall face, and rectangular channel notch fillet is handled.

Optionally, the equal fillet in edge of recess is handled, and the bottom slope setting of recess, and the sweeps groove of slope is seted up to the lowest of recess level, and the base lateral wall is worn out to the tip of sweeps groove, and the notch department joint in sweeps groove has the apron.

The working principle and the beneficial effects of the scheme are as follows:

1. in the scheme, the central shaft is driven to rotate through rotating the adjusting rod, so that the positioning block is driven to rotate, the inclined edge of the pushing block is utilized to push the connecting rod to slide, so that the movement of the positioning block is pushed until the elastic sheet at the end part of the positioning block abuts against the inner wall of the gear shaft hole, and the shaft gear is fixed; and the rotating angle of the adjusting rod is adjusted to adjust the propelling quantity of the positioning block, so that the gears with different shaft diameters are fixed.

2. In this scheme, after the canned paragraph of locating piece offseted with the gear, continue to rotate and adjust pole drive linkage segment and continue to move, linkage segment drive rack motion, the rack drives cardboard downstream through driving gear, offsets until cardboard and gear upper surface, prevents that the gear from beating in the course of working, increases the stability in the gear course of working.

3. In this scheme, when the linkage segment continues to move, through the bracing piece of linkage segment both sides, promote shell fragment deformation, make the whole gear shaft hole inner wall of hugging closely of shell fragment, the area of contact of increase shell fragment and gear increases the stability to the gear.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

fig. 4 is an enlarged schematic view of fig. 1 at B.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a base 1, a central shaft 2, an adjusting rod 3, a handheld part 4, a connecting block 5, a connecting groove 6, a groove 7, a connecting rod 8, a connecting section 9, a fixed section 10, a sliding rod 11, a rack 12, a driving gear 13, a clamping plate 14, a rectangular block 15, a rectangular groove 16, a pushing block 17, an elastic sheet 18, a supporting rod 19, a scrap groove 20 and a cover plate 21.

Examples

As shown in fig. 1, 2, 3 and 4: a shaft gear clamp comprises a base 1, wherein the upper surface of the base 1 is rotatably connected with a central shaft 2, the central shaft 2 is perpendicular to the base 1, the inside of the central shaft 2 is hollow, a connecting groove 6 is formed in the inner side wall of the central shaft 2, and a connecting block 5 is vertically connected in the connecting groove 6 in a sliding manner; the central shaft 2 is connected with an adjusting rod 3 in a sliding contact manner, and the side wall of the adjusting rod 3 is fixedly connected with a connecting block 5; the bottom of the central shaft 2 is provided with a cavity, the inner wall of the cavity is provided with an internal thread, the bottom end of the side wall of the adjusting rod 3 is provided with an external thread matched with the bottom end of the side wall, the length of the external thread is smaller than that of the internal thread, and the top end of the adjusting rod 3 is provided with a handheld part 4; a plurality of pushing blocks 17 are fixed on the outer surface of the central shaft 2 in a circular array mode, one side of each pushing block 17 is an inclined edge, a plurality of grooves 7 distributed in the circular array mode are formed in the surface of the base 1, connecting rods 8 are horizontally and movably connected in the grooves 7, the connecting rods 8 are vertically arranged, horizontally arranged springs are fixed between the connecting rods 8 and the grooves 7, the connecting rods 8 abut against the inclined edges of the pushing blocks 17, a positioning block is fixed at the top end of each connecting rod 8, and an elastic sheet 18 for pressing a gear is fixed at the end portion of each positioning block; rectangular grooves 16 are formed in two sides of the groove 7, a rectangular block 15 is fixed at the bottom end of the connecting rod 8, two ends of the rectangular block 15 are respectively connected in the rectangular grooves 16 in the two sides in a sliding mode, the upper surface of the rectangular block 15 is a convex arc-shaped surface, and the notches of the rectangular grooves 16 are subjected to fillet treatment; the positioning block comprises a connecting section 9 and a fixing section 10, and the connecting section 9 is fixed on the connecting rod 8; four corners of the end surface of the connecting section 9 facing the fixing section 10 are respectively provided with a sliding chute, a sliding rod 11 is fixed at the corresponding position on the fixing section 10, the sliding rod 11 is connected in the sliding chute in a sliding manner, and a spring is fixed on the sliding rod 11; the upper surface of the fixed section 10 is provided with a through hole, an L-shaped clamping plate 14 is vertically and slidably connected in the through hole, the bottom end of the clamping plate 14 is opposite to the groove 7, teeth are arranged on the vertical surface of the clamping plate 14, a vertically downward cavity is formed in the upper surface of the fixed section 10, a driving gear 13 meshed with the clamping plate 14 is rotatably connected in the cavity, a rack 12 meshed with the driving gear 13 is fixed on the end part of the connecting section 9, a through groove for accommodating the rack 12 is formed in the fixed section 10, and the rack 12 and the clamping plate 14 are arranged in a staggered mode; the elastic sheet 18 is arc-shaped, the outer surface of the elastic sheet 18 is tangent to the fixed section 10, a gap exists between the bottom end of the elastic sheet 18 and the upper surface of the base 1, a rubber layer is fixed on the inner surface of the elastic sheet 18, and the surface of the rubber layer is uneven; two ends of the inner surface of the elastic sheet are hinged with supporting rods 19, the supporting rods 19 are elastic telescopic rods, and the end parts of the elastic telescopic rods are respectively hinged on two sides of the connecting section 9; the equal fillet in edge of recess 7 is handled, and the bottom slope of recess 7 sets up, and the sweeps groove 20 of slope is seted up to the lowest department of recess 7 level, and 1 lateral wall of base is worn out to the tip in sweeps groove 20, and the notch department joint in sweeps groove 20 has apron 21.

The specific implementation mode is as follows:

the gear shaft hole penetrates through the central shaft 2 and then is placed on the base 1, the hand-held part 4 is held tightly to rotate the adjusting rod 3, the connecting block 5 on the adjusting rod 3 is matched with the connecting groove 6 to drive the central shaft 2 to rotate, the central shaft 2 drives the pushing block 17 to rotate in the rotating process, the inclined edge of the pushing block 17 is utilized to push the connecting rod 8 to slide towards the direction far away from the base 1, so that the whole movement of the positioning block is pushed, the elastic sheet 18 at the end part of the positioning block abuts against the inner wall of the gear shaft hole, and the gear is preliminarily fixed; in this embodiment, only need adjust the turned angle of pole 3 through the adjustment, the propulsion of adjusting the locating piece can accomplish the fixed to different diameter of axle gears, and the adjustment process need not artifical the measurement simultaneously, only need rotate adjust the pole 3 can, operation process convenient and fast just can effectively avoid artifical measuring error.

When the elastic sheet 18 is tightly attached to the gear, the fixed section 10 of the positioning block stops moving; continuously rotating the adjusting rod 3, continuously pushing the connecting rod 8 by using the positioning block, continuously moving the connecting section 9 of the positioning block towards the fixed section 10 by using the matching of the sliding rod 11 and the sliding groove, driving the rack 12 to move by using the connecting section 9, driving the clamping plate 14 to move downwards by the meshing of the rack 12 through the driving gear 13 until the clamping plate 14 abuts against the upper surface of the gear, and stopping rotating the adjusting rod 3; the clamping plate 14 and the base 1 are used for forming up-and-down clamping on the gear, so that the gear is prevented from jumping in the machining process, and the stability of the gear in the machining process is improved; meanwhile, in the process, the connecting section 9 pushes the support rods 19 on the two sides to compress the support rods 19, and meanwhile, acting force is applied to the two ends of the elastic sheet 18 through the support rods 19 to enable the elastic sheet 18 to deform and cling to the inner wall of the gear shaft hole, so that the contact area between the elastic sheet 18 and the gear is increased, the friction force between the elastic sheet 18 and the gear is greatly increased, and the stability of fixing the gear is improved; in addition, after adjusting pole 3 and rotating, utilize the threaded connection who adjusts between pole 3 and the center pin 2, play the fixed of adjusting pole 3, prevent to adjust pole 3 and rotate by oneself, avoid anchor clamps not hard up.

Sweeps and coolant liquid in the gear machining process collect in recess 7, collect waste chip groove 20 through the recess 7 bottom, the subsequent processing of being convenient for, the rectangular block 15 upper surface of connecting rod 8 bottom is bellied arcwall face simultaneously, and the equal fillet in edge of 16 notches of rectangular channel and recess 7 is handled, prevents that the sweeps from hanging at the notch edge.

After gear machining is finished, the adjusting rod 3 is rotated reversely, the clamp is gradually reset integrally, the gear is loosened, and then the gear is taken down.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.

Claims

1. The utility model provides an axle type gear anchor clamps which characterized in that: the automatic gear pushing device comprises a base, the base upper surface is rotated and is connected the center pin, center pin perpendicular to base, circular array is fixed with a plurality of propulsion pieces on the center pin surface, one side of propulsion piece is the slope limit, the base sets up the recess that a plurality of circular array distribute on the surface, horizontal sliding connection has the connecting rod in the recess, the vertical setting of connecting rod, be fixed with the spring that the level set up between connecting rod and the recess, the connecting rod offsets with the slope limit of propulsion piece, the connecting rod top is fixed with the locating piece, the locating piece end fixing has the shell fragment of pressing the gear.

2. The shaft gear clamp of claim 1, wherein: the inner part of the central shaft is hollow, a connecting groove is formed in the inner side wall of the central shaft, and a connecting block is vertically connected in a sliding manner in the connecting groove; the central shaft is in sliding contact with an adjusting rod, and the side wall of the adjusting rod is fixedly connected with the connecting block; the cavity has been seted up to center pin bottom, and the cavity inner wall is provided with the internal thread, adjusts pole lateral wall bottom and is provided with the external screw thread that matches with it, and external screw thread length is less than internal thread length.

3. The shaft gear clamp of claim 2, wherein: the positioning block comprises a connecting section and a fixing section, and the connecting section is fixed on the connecting rod; the four corners of the end surface of the connecting section facing the fixing section are respectively provided with a sliding chute, a sliding rod is fixed at the corresponding position on the fixing section, the sliding rods are connected in the sliding chutes in a sliding manner, and springs are fixed on the sliding rods; vertical sliding connection has the cardboard of L shape on the canned paragraph, and the bottom of cardboard is just to the recess, and is provided with the tooth on the vertical face of cardboard, rotates on the canned paragraph to be connected with the drive gear with cardboard meshing, is fixed with the rack with drive gear meshing on the linkage segment tip.

4. The shaft gear clamp of claim 3, wherein: the elastic sheet is arc-shaped, the outer surface of the elastic sheet is tangent to the fixed section, a gap is formed between the bottom end of the elastic sheet and the upper surface of the base, a rubber layer is fixed on the inner surface of the elastic sheet, and the surface of the rubber layer is uneven; the both ends of surface are articulated to have the bracing piece in the elastic sheet, and the bracing piece is elastic telescopic link, and elastic telescopic link's tip articulates the both sides at the linkage segment respectively.

5. The shaft gear clamp of claim 4, wherein: the rectangular channel has been seted up to the both sides of recess, and the connecting rod bottom mounting has the rectangular block, and the both ends of rectangular block are sliding connection respectively in the rectangular channel of both sides, and the upper surface of rectangular block is bellied arcwall face, and rectangular channel notch fillet is handled.

6. The shaft gear clamp of claim 5, wherein: the equal fillet in edge of recess is handled, and the bottom slope of recess sets up, and the sweeps groove of slope is seted up to the lowest department of recess level, and the base lateral wall is worn out to the tip of sweeps groove, and the notch department joint in sweeps groove has the apron.