CN211305091U

CN211305091U - Outer tooth cycloid gear diplopore location gear grinding anchor clamps

Info

Publication number: CN211305091U
Application number: CN201922190123.7U
Authority: CN
Inventors: 王世杰; 刘岩冰; 张天浩; 许承智; 涂杰; 徐祯; 盛誉; 张斌
Original assignee: Chongqing Hengjie Technology Co ltd
Current assignee: Chongqing Hengjie Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-08-21
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses an external tooth cycloid gear diplopore location gerate anchor clamps, including last anchor clamps, lower pedestal and clamping device, clamping device includes the piston, the connection pad, excessive pull rod, the axle draws, location taper sleeve and the cover that expands, hypomere and the middle section of pedestal are located respectively down to piston and connection pad, the middle part of connection pad is worn to establish excessive pull rod and is fixed with the piston butt joint through excessive pull rod, location taper sleeve axial is worn to establish the upper segment and the central symmetry setting of pedestal under, the one-to-one spacing cover of cover that expands is established in drawing epaxial upper segment, draw the axle from last to penetrate location taper sleeve and clearance fit downwards, the cover that expands corresponds the cooperation with the location taper sleeve, the lower extreme of drawing the axle is worn out the location taper sleeve and with connection pad fixed connection. The utility model carries out double-hole positioning through the column pin hole, has strong self-core capability when the clamp is assembled, stable core fixing position and sufficient rigidity, and improves the assembly efficiency and precision of the clamp, thereby clamping the product more accurately and reliably; in addition, each part is detachably mounted, so that the production difficulty is reduced, and the assembly is convenient.

Description

Outer tooth cycloid gear diplopore location gear grinding anchor clamps

Technical Field

The utility model belongs to the technical field of gear machining, specific theory relates to an outer tooth cycloid gear diplopore location geration anchor clamps.

Background

The cycloid gear is a general name of cylindrical gears with various cycloid or equidistant curves, and is divided into an external tooth cycloid gear and an internal tooth cycloid gear according to the relative position of gear teeth, in particular to the external tooth cycloid gear, a cylindrical pin hole is arranged on the cylindrical end surface of the external tooth cycloid gear, the outer side of a cylinder is a tooth surface, when the external tooth cycloid gear is subjected to gear grinding processing, centering is generally carried out through a shaft center hole, but the external tooth cycloid gear is small in thickness and thin in wall between the cylindrical pin hole and the external tooth surface, when the external tooth cycloid gear is clamped by an existing clamp, the positioning precision is low, the rigidity is poor, the reject ratio is high during gear grinding processing, the clamping operation of the clamp is inconvenient, and the processing technological requirements of the high-.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, an object of the utility model is to provide an outer tooth cycloid gear diplopore location gerate anchor clamps.

The utility model discloses the purpose realizes like this:

the utility model provides an outer tooth cycloid gear diplopore location gerate anchor clamps of grinding one's teeth, includes anchor clamps, lower pedestal and locates the clamping device in the pedestal down, its key lies in: clamping device includes piston, connection pad, excessive pull rod, 2 pull shafts, 2 location taper sleeves and 2 bloated covers that have an interior conical surface, the hypomere of pedestal is located down to the piston, the connection pad is located the middle section of pedestal down, the middle part of this connection pad is worn to establish excessive pull rod and through this excessive pull rod with the piston butt joint is fixed, location taper sleeve axial is worn to establish the upper segment and the central symmetry setting of pedestal down, the spacing cover that bloated a pair of is established draw epaxial section, draw the axle from the top down penetrate in the location taper sleeve and clearance fit, the interior conical surface of bloated cover is the same with the tapering of the outer conical surface on location taper sleeve upper portion and corresponds the cooperation, draw the lower extreme of axle wear out the location taper sleeve and with connection pad fixed connection.

Preferably, the lower seat body comprises a base, a connecting seat arranged on the base and a positioning seat arranged on the connecting seat, and the connecting disc is limited in the connecting seat; the piston is arranged in the containing cavity between the base and the connecting seat and is in clearance fit with the side wall of the containing cavity, and the positioning taper sleeve is fixedly arranged on the positioning seat in a penetrating mode and is in clearance fit with the penetrating hole.

By adopting the structure, the lower seat body is designed into a split type detachable connection, so that the lower seat body is convenient to produce and manufacture, and meanwhile, the assembly of the internal clamping device is facilitated.

Furthermore, an oil cavity is reserved at the upper part of the accommodating cavity and communicated to the bottom surface of the base through an oil way, and a spring for jacking the piston is arranged on the upper surface of the base, which is opposite to the bottom of the piston.

By adopting the structure, oil is supplied to the oil cavity through the oil way by the oil cylinder of the machine tool, and the piston is pressed down to realize clamping; when the material is removed, the oil cylinder is closed, and the piston is pushed up by the spring.

Furthermore, an anti-rotation screw is radially arranged on the outer wall of the positioning seat in a penetrating manner corresponding to the positioning taper sleeve, and the inner end of the anti-rotation screw extends into an axial strip-shaped groove formed in the outer wall of the pull shaft. By adopting the structure, the pull shaft is prevented from rotating, and the normal axial movement of the pull shaft is ensured.

Furthermore, a cylindrical pin is axially arranged on the step surface of the piston, a pin hole is formed in the lower surface of the connecting seat corresponding to the cylindrical pin, and the end head of the cylindrical pin extends into the pin hole to prevent the piston from rotating.

By adopting the structure, the cylindrical pin can improve the positioning efficiency of assembly on the one hand, and can prevent the piston from rotating, so that the looseness of connection with an excessive pull rod is avoided, and the vertical movement of the piston is not influenced.

Preferably, the upper clamp comprises an upper gland, a morse taper shank and a mandrel, the mandrel is fixedly arranged at the upper part of the upper gland, the mandrel is inserted into the morse taper shank in a limiting manner and is rotatably connected through a bearing, and the positioning end face of the upper gland is arranged opposite to the top positioning end face of the lower seat body.

By adopting the structure, the upper clamp is aligned and centered through the Morse taper shank and is installed with the main shaft on the upper part of the machine tool, the upper gland can rotate through the bearing, the lower seat body can drive the workpiece and the upper gland to rotate together after the upper gland compresses the workpiece, and the gear grinding is more convenient.

Preferably, an expanded pressure head is arranged at the top of the pull shaft, a limit clamping groove is arranged on the pull shaft close to the lower surface of the pressure head, and a circle of protruding part is arranged at the upper port of the inner hole of the expansion sleeve and clamped in the limit clamping groove.

By adopting the structure, the top surface of the expansion sleeve is uniformly pressed down by the pressure head, the self-centering capacity of the expansion sleeve is ensured, and the expansion sleeve can synchronously move up and down with the pull shaft in the limiting clamping groove of the expansion sleeve so as to separate the expansion sleeve from the workpiece and the positioning taper sleeve.

Has the advantages that:

the utility model relates to an outer tooth cycloid gear diplopore location gear grinding fixture carries out diplopore location through the column pinhole, and self-centering ability is strong when the fixture is assembled, and the centering position is stable, and the location rigidity is sufficient, need not to carry out complicated calibration work again, has improved the efficiency and the precision of fixture assembly to it is more accurate reliable to the product centre gripping; in addition, each part is detachably mounted, the production difficulty is reduced, and the assembly is more convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention;

description of reference numerals:

the machining tool comprises an upper clamp 1, an upper gland 1a, a Morse taper shank 1b, a mandrel 1c, a lower seat 2, a base 2a, a connecting seat 2b, a positioning seat 2c, a piston 3, a connecting disc 4, a transition pull rod 5, a pull shaft 6, a positioning taper sleeve 7, an expansion sleeve 8, an accommodating cavity 9, an oil way 10, a spring 11, a bearing 12, an anti-rotation screw 13, a cylindrical pin 14, a pressure head 15, a limiting clamping groove 16 and a cycloid gear 17 to be machined.

Detailed Description

The present invention will be further explained with reference to the following examples and drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and 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.

Examples

As shown in fig. 1: the utility model provides an outer tooth cycloid gear diplopore location gear grinding anchor clamps, by last anchor clamps 1, lower pedestal 2 with locate down the clamping device in the pedestal 2 and constitute, go up anchor clamps 1 and comprise last gland 1a, morse taper shank 1b and dabber 1c, the fixed dabber 1c that is equipped with in upper portion of going up gland 1a, the spacing cartridge of this dabber 1c in the morse taper shank 1b and rotate through bearing 12 and connect, the location terminal surface of going up gland 1a just to the top location terminal surface setting of pedestal 2 down.

As shown in fig. 1: clamping device comprises piston 3, connection pad 4,

excessive pull rod

5, 2

draw shafts

6, 2 location taper sleeves 7 and 2 bloated cover 8 that have the inner conical surface, piston 3 locates down the hypomere of pedestal 2, connection pad 4 locates down the middle section of pedestal 2, and the middle part of this connection pad 4 is worn to establish excessive pull rod 5 and through this excessive pull rod 5 with piston 3 butt joint is fixed, location taper sleeve 7 axial is worn to establish the upper segment and the central symmetry setting of pedestal 2 down, expand the cover 8 with draw shaft 6 one to one sets up, the top of draw shaft 6 is equipped with the pressure head 15 that enlarges, draw shaft 6 near pressure head 15 lower surface is equipped with spacing draw-in groove 16, the last port of the 8 holes of expand the cover is equipped with round bulge and joint in spacing draw-in groove 16. The pull shaft 6 penetrates into the positioning taper sleeve 7 from top to bottom, the inner conical surface of the expansion sleeve 8 is the same as the taper of the outer conical surface of the upper portion of the positioning taper sleeve 7 and is correspondingly matched with the outer conical surface of the upper portion of the positioning taper sleeve 7, and the lower end of the pull shaft 6 penetrates out of the positioning taper sleeve 7 and is fixedly connected with the connecting disc 4.

As shown in fig. 1: the lower seat body 2 consists of a base 2a, a connecting seat 2b arranged on the base 2a and a positioning seat 2c arranged on the connecting seat 2b, and the connecting disc 4 is limited in the connecting seat 2 b; the piston 3 is arranged in the accommodating cavity 9 between the base 2a and the connecting seat 2b, and the positioning taper sleeve 7 is fixedly arranged on the positioning seat 2c in a penetrating manner. An oil cavity is reserved at the upper part of the accommodating cavity 9 and is communicated to the bottom surface of the base 2a through an oil way 10, and a spring 11 for jacking the piston 3 is arranged on the upper surface of the base 2a, which is opposite to the bottom of the piston 3.

As shown in fig. 1: an anti-rotation screw 13 is radially arranged on the outer wall of the positioning seat 2c corresponding to the positioning taper sleeve 7 in a penetrating manner, and the inner end of the anti-rotation screw 13 extends into an axial strip-shaped groove formed in the outer wall of the pull shaft 6. The piston is characterized in that a cylindrical pin 14 is axially arranged on the step surface of the piston 3, a pin hole is formed in the lower surface of the connecting seat 2b corresponding to the cylindrical pin 14, and the end head of the cylindrical pin 14 extends into the pin hole to prevent the piston 3 from rotating.

The working principle is as follows:

as shown in fig. 1: aligning the cycloid gear to be processed, sleeving the cycloid gear outside two expansion sleeves through a pin hole in a one-to-one manner, then moving down through a lower pressing cover, clamping the upper and lower cylindrical surfaces of the cycloid gear by the positioning end surfaces of an upper pressing cover and a positioning seat, then feeding oil through an oil way by an oil cylinder, moving a piston down to pull a pull rod, a connecting disc and a pull shaft down, squeezing the expansion sleeve into the space between the cycloid gear and the positioning taper sleeve by a pressure head of the pull shaft, and expanding and centering the inner wall of the pin hole of the cylinder by the expansion sleeve through the interaction force of an outer conical surface of the positioning taper sleeve and the expansion sleeve; then rotating the lower base body to grind the external teeth of the cycloid gear; when the material is taken off, the upper clamp moves upwards, the oil cylinder is closed, the piston is pushed upwards through the spring, the pull shaft is pushed upwards, the expansion sleeve is pushed out through the limiting clamping groove by the pull shaft, the pull shaft is separated from the inner wall of the pin hole of the cycloidal gear, and the processed cycloidal gear can be taken out easily.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides an outer tooth cycloid gear diplopore location gear grinding anchor clamps, includes anchor clamps (1), lower pedestal (2) and locates the clamping device in lower pedestal (2), its characterized in that: the clamping device comprises a piston (3), a connecting disc (4), an excessive pull rod (5), 2 pulling shafts (6), 2 positioning taper sleeves (7) and 2 expansion sleeves (8) with inner conical surfaces, wherein the piston (3) is arranged at the lower section of the lower seat body (2), the connecting disc (4) is arranged at the middle section of the lower seat body (2), the middle part of the connecting disc (4) penetrates through the excessive pull rod (5) and is fixedly butted with the piston (3) through the excessive pull rod (5), the positioning taper sleeves (7) are axially penetrated through the upper section of the lower seat body (2) and are arranged in central symmetry, the one-to-one limiting sleeves of the expansion sleeves (8) are arranged at the upper section of the pulling shaft (6), the pulling shafts (6) penetrate into the positioning taper sleeves (7) from top to bottom, the conical surfaces of the expansion sleeves (8) are the same as the conical degrees of the outer conical surfaces at the upper parts of the positioning taper sleeves (7) and are correspondingly matched, the lower end of the pull shaft (6) penetrates through the positioning taper sleeve (7) and is fixedly connected with the connecting disc (4).

2. The external tooth cycloid gear diplopore location gerar grinding fixture of claim 1, characterized in that: the lower seat body (2) comprises a base (2a), a connecting seat (2b) arranged on the base (2a) and a positioning seat (2c) arranged on the connecting seat (2b), and the connecting disc (4) is limited in the connecting seat (2 b); the piston (3) is arranged in an accommodating cavity (9) between the base (2a) and the connecting seat (2b), and the positioning taper sleeve (7) is fixedly arranged on the positioning seat (2c) in a penetrating mode.

3. The external tooth cycloid gear diplopore location gerar grinding fixture of claim 2, characterized in that: an oil cavity is reserved at the upper part of the accommodating cavity (9) and is communicated to the bottom surface of the base (2a) through an oil way (10), and a spring (11) for jacking the piston (3) is arranged at the bottom of the upper surface of the base (2a) opposite to the piston (3).

4. The external tooth cycloid gear diplopore location gerar grinding fixture of claim 2, characterized in that: an anti-rotation screw (13) is radially arranged on the outer wall of the positioning seat (2c) in a penetrating manner corresponding to the positioning taper sleeve (7), and the inner end of the anti-rotation screw (13) extends into an axial strip-shaped groove formed in the outer wall of the pull shaft (6).

5. The external tooth cycloid gear diplopore location gerar grinding fixture of claim 2, characterized in that: the piston is characterized in that a cylindrical pin (14) is axially arranged on the step surface of the piston (3), a pin hole is formed in the lower surface of the connecting seat (2b) corresponding to the cylindrical pin (14), and the end of the cylindrical pin (14) extends into the pin hole to prevent the piston (3) from rotating.

6. The external tooth cycloid gear diplopore location gerar grinding fixture of claim 1, characterized in that: the upper clamp (1) comprises an upper gland (1a), a Morse taper shank (1b) and a mandrel (1c), the mandrel (1c) is fixedly arranged on the upper portion of the upper gland (1a), the mandrel (1c) is inserted into the Morse taper shank (1b) in a limiting mode and is connected in a rotating mode through a bearing (12), and the positioning end face of the upper gland (1a) is arranged right opposite to the top positioning end face of the lower base body (2).

7. The external tooth cycloid gear diplopore location gerar grinding fixture of claim 1, characterized in that: the top of drawing axle (6) is equipped with pressure head (15) that expand, drawing axle (6) near pressure head (15) lower surface is equipped with spacing draw-in groove (16), the last port of cover (8) hole that expands is equipped with the round bulge and the joint is in spacing draw-in groove (16).