CN210254255U - Small crescent turning inner diameter assembling clamp of high-precision gear pump - Google Patents

Abstract

The utility model relates to a little crescent turning internal diameter of high accuracy gear pump equipment anchor clamps, it includes position locator, self-align tapering clamp plate, the position locator middle part forms the anchor clamps mounting hole, is equipped with little crescent positioning groove along the global equipartition in the hole, and each little crescent positioning groove one end all corresponds sets up a tapering clamp plate constant head tank, and each other end forms and treats the caulking groove of turning little crescent end position location, and the groove face of little crescent positioning groove matches with treating the little crescent external diameter face of turning; the self-positioning taper pressing plate is in a trapezoid table shape, an inclined plane at one side of the self-positioning taper pressing plate is in inclined guide fit with an inclined plane at one side of the taper pressing plate positioning groove, an inclined plane at the other side of the self-positioning taper pressing plate is abutted against the tail end of a small crescent to be turned in the small crescent positioning groove, and when the small crescent to be turned is abutted against the tail end of the small crescent to be turned in the small crescent positioning; the outer side surface of the position locator is locked and connected with a bolt piece, and the bolt piece is locked to form the abutting state. The structure enables the small crescent to form better positioning, centering and guiding during machining, ensures the machining precision and improves the machining efficiency.

Description

Small crescent turning inner diameter assembling clamp of high-precision gear pump

Technical Field

The utility model relates to a machining anchor clamps are the little crescent turning internal diameter equipment anchor clamps of high accuracy gear pump.

Background

The gear pump is a hydraulic pump widely applied to a hydraulic system and is mainly formed by assembling an outer gear driven by an inner gear, a small crescent, a left oil distribution disc, a right oil distribution disc and other structures after two gears are combined. Wherein the precision of the small crescent plays a key role in the working reliability and stability of the gear pump. Current each big hydraulic pressure spare manufacture factory, when the little crescent of processing production, still adopt and carry out lathe work behind the big material clamping of singleton, add and do not have effectual location processing man-hour, more do not from centering and accurate direction, not only machining efficiency is low, and extravagant material is many, and the little crescent off normal error that processing formed is great, especially little crescent internal diameter size error is great, after the assembly use, gear pump job stabilization nature is relatively poor, easy wearing and tearing, short service life, the disability rate is higher. Therefore, a clamp capable of improving the processing precision of the small crescent inner diameter surface is to be designed.

Disclosure of Invention

For overcoming the above-mentioned not enough, the utility model aims at providing a little crescent turning internal diameter equipment anchor clamps of high accuracy gear pump to this field, make it solve present like anchor clamps and add man-hour at little crescent internal diameter face turning, fail effective location, centering, direction to the work piece, lead to machining efficiency lower, the not good enough technical problem of machining precision. The purpose is realized by the following technical scheme.

A high-precision gear pump crescent turning inner diameter assembling clamp comprises a position locator, a self-positioning taper pressing plate and a positioning flange plate, and is structurally characterized in that the position locator is of an annular structure, a clamp mounting hole is formed in the middle of the position locator, a small crescent positioning groove and a taper pressing plate positioning groove are uniformly distributed in the clamp mounting hole along the circumferential surface, one end of each small crescent positioning groove is correspondingly provided with one taper pressing plate positioning groove, the groove surface of each small crescent positioning groove is matched with the outer diameter surface of a small crescent to be turned, and the other end of each small crescent positioning groove is provided with an embedding groove which is embedded and positioned with the end part of the small crescent to be turned; the self-positioning taper pressing plate is in a trapezoid table shape, a threaded hole vertically penetrating to the bottom surface of the trapezoid table is formed in the middle of the top surface of the trapezoid table, an inclined surface on one side of the self-positioning taper pressing plate is in inclined guide fit with an inclined surface on one side of the taper pressing plate positioning groove, an inclined surface on the other side of the self-positioning taper pressing plate abuts against the tail end of a small crescent to be turned in the small crescent positioning groove, and when the inclined surface abuts against the tail end of the small crescent to be turned in the small crescent positioning groove, the small crescent to be turned; a connecting hole communicated with the positioning groove of the taper pressing plate is formed in the outer side surface of the position locator, a bolt piece outside the position locator is connected with the connecting hole in a penetrating mode and then is in threaded connection with a threaded hole of the self-positioning taper pressing plate, and when the bolt piece is screwed tightly, an inclined surface on one side of the self-positioning taper pressing plate abuts against the tail end of a small crescent to be turned; the locating flange plate is provided with a locating end which is positioned by abutting against one side surface of the small crescent to be turned in the position locator, and the locating flange plate is locked and fixed with the end surface of the position locator through a screw piece. Through the structure, the outer diameter surface, the side surface and the end surface of a plurality of small crescent moon teeth to be turned are positioned in the same position positioner, so that better positioning and self-centering control are achieved. When the position localizer rotates along with the locating flange, the locating taper pressing plates form better guiding and locating under the oblique guiding action of the locating grooves of the taper pressing plates, thereby reliably clamping the small crescent to be turned, forming better locating, centering and guiding during the small crescent processing, ensuring the processing precision and improving the processing efficiency.

During the little crescent turning internal diameter equipment anchor clamps of above-mentioned high accuracy gear pump, work as when the position locator is in the processing rotation state, from the inclined plane cooperation between location tapering clamp plate and the tapering clamp plate constant head tank, make the centrifugal force that produces from the location tapering clamp plate supplementary support tightly treat the little crescent of turning. Through this structure, guarantee that this equipment anchor clamps treat the reliable tight location of pressing from both sides of turning little crescent, further guarantee the machining precision.

Among the little crescent turning internal diameter equipment anchor clamps of above-mentioned high accuracy gear pump, the location end of positioning flange dish is protruding form, the position locator is equipped with the positioning groove who matches with the location end. Through this structure, improve the reliability that position locator and locating flange dish are connected.

In the small crescent turning inner diameter assembling clamp of the high-precision gear pump, at least two groups of small crescent positioning grooves are arranged in the position positioner. Set up a plurality of little crescent positioning grooves, be favorable to improving the efficiency of processing.

The utility model discloses overall structure is comparatively simple, and little crescent internal diameter face adds man-hour can form effectual location, centering, direction, has guaranteed the machining precision, has improved machining efficiency, is fit for using as the adds clamping apparatus of current all kinds of gear pump crescent spare, or the institutional advancement of like product.

Drawings

Fig. 1 is a schematic structural view of the present invention, in which a-a section and a partial section are taken.

FIG. 2 is a schematic sectional view A-A of FIG. 1.

Fig. 3 is a schematic structural view of the positioning flange of the present invention, which is a sectional view taken along line B-B.

Fig. 4 is a sectional view B-B of fig. 3.

Fig. 5 is a schematic structural view of the position locator of the present invention, in a cross-sectional view taken along the line C-C and partially in cross-section.

Fig. 6 is a cross-sectional view C-C of fig. 5.

Fig. 7 is a schematic view of the backside structure of fig. 5.

Fig. 8 is a schematic cross-sectional structure view of the self-positioning tapered pressure plate of the present invention.

Fig. 9 is a schematic top view of the self-positioning tapered pressure plate of the present invention.

Fig. 10 is the utility model discloses a treat little crescent structure schematic diagram of turning.

Fig. 11 is a schematic top view of fig. 10.

The sequence numbers and names in the figure are: 1. the position locator, 101, anchor clamps mounting hole, 102, little crescent positioning groove, 103, caulking groove, 104, tapering clamp plate constant head tank, 105, connecting hole, 106, positioning groove, 2, location ring flange, 201, location end, 3, from location tapering clamp plate, 301, screw hole, 4, bolt spare, 5, treat little crescent of turning.

Detailed Description

The invention will now be further described with reference to the accompanying drawings.

As shown in fig. 1-11, this little crescent turning internal diameter of high accuracy gear pump equipment anchor clamps include position locator 1, from locating tapering clamp plate 3, locating flange 2, the position locator is the loop configuration, its middle part forms anchor clamps mounting hole 101, anchor clamps mounting hole is equipped with three little crescent positioning grooves 103 of group and tapering clamp plate constant head tank 104 along global equipartition, each little crescent positioning groove one end all corresponds and sets up a tapering clamp plate constant head tank, the groove face of little crescent positioning groove with treat that the little crescent 5 external diameter face of turning matches, little crescent positioning groove other end forms one and treats the caulking groove 103 of the end position gomphosis location of the little crescent of turning. Self-align tapering clamp plate is trapezoidal platform form, and its trapezoidal platform top surface middle part is equipped with the screw hole 301 that runs through to trapezoidal platform bottom surface perpendicularly, and one side inclined plane of self-align tapering clamp plate is the oblique direction cooperation with one side inclined plane of tapering clamp plate constant head tank, and the tail end of waiting the little crescent of turning in the opposite side inclined plane of self-align tapering clamp plate and the little crescent of little crescent constant head tank offsets, and when supporting tightly, waits that the little crescent of turning is positioned in little crescent constant head tank. The lateral surface of position locator is equipped with the connecting hole 105 that switches on to tapering clamp plate constant head tank, and threaded connection is from the screw hole 301 of locating tapering clamp plate behind the bolt spare 4 cross-under connecting hole of position locator outside, and when the bolt spare was screwed, one side inclined plane of from locating tapering clamp plate supported tightly with the tail end of treating the little crescent of turning, and at this moment, treat that the little crescent of turning is located in little crescent constant head tank.

The positioning flange 2 is provided with a positioning end 201 which is used for abutting and positioning one side surface of a small crescent 5 to be turned in the position positioner 1, the positioning end is convex relative to the positioning flange, and the position positioner is provided with a positioning groove 106 matched with the positioning end. The positioning flange plate and the end face of the position positioner are locked and fixed through a screw piece.

During operation, the position locator rotates along with the locating flange dish, and the locating flange dish is fixed in the anchor clamps of lathe, and the lathe treats turning little crescent internal diameter face lathe work, and during lathe work, the three little crescent car of treating turning of location in the position locator realizes from the centering process, can not only effectively improve lathe work efficiency, and can guarantee the internal diameter face machining precision, reduces the off normal error. The little crescent assembly that the turning was accomplished when the gear pump used, can effectively improve gear pump job stabilization nature and life.

Claims (4)

1. A high-precision gear pump small crescent turning inner diameter assembling clamp comprises a position locator (1), a self-positioning taper pressing plate (3) and a positioning flange plate (2), and is characterized in that the position locator (1) is of an annular structure, a clamp mounting hole (101) is formed in the middle of the position locator, small crescent positioning grooves (102) and taper pressing plate positioning grooves (104) are uniformly distributed in the clamp mounting hole along the circumferential surface, one end of each small crescent positioning groove is correspondingly provided with one taper pressing plate positioning groove, the groove surface of each small crescent positioning groove is matched with the outer diameter surface of a small crescent (5) to be turned, and an embedded groove (103) which is embedded and positioned with the end part of the small crescent to be turned is formed at the other end of each small crescent positioning groove; the self-positioning taper pressing plate (3) is in a trapezoid table shape, a threaded hole (301) which vertically penetrates through the bottom surface of the trapezoid table is formed in the middle of the top surface of the trapezoid table, an inclined plane on one side of the self-positioning taper pressing plate is in inclined guide fit with an inclined plane on one side of the taper pressing plate positioning groove, an inclined plane on the other side of the self-positioning taper pressing plate abuts against the tail end of a small crescent to be turned in the small crescent positioning groove, and when the small crescent to be turned is abutted tightly, the small crescent to be turned is positioned in the small crescent positioning groove; a connecting hole (105) communicated with the positioning groove of the taper pressing plate is formed in the outer side surface of the position locator, a bolt piece (4) outside the position locator is connected with the connecting hole in a penetrating mode and then is in threaded connection with a threaded hole of the self-positioning taper pressing plate, and when the bolt piece is screwed tightly, an inclined surface on one side of the self-positioning taper pressing plate abuts against the tail end of a small crescent to be turned; the positioning flange plate (2) is provided with a positioning end (201) which is positioned by abutting against one side surface of the small crescent to be turned in the position positioner, and the positioning flange plate is locked and fixed with the end surface of the position positioner through a screw piece.

2. The high-precision gear pump crescent turning inner diameter assembling clamp is characterized in that when the position positioner (1) is in a machining rotating state, the self-positioning taper pressure plate (3) is matched with an inclined plane between the taper pressure plate positioning grooves (104), so that centrifugal force generated by the self-positioning taper pressure plate is assisted to abut against the crescent (5) to be turned.

3. The assembly fixture for the small crescent turning inner diameter of the high-precision gear pump is characterized in that a positioning end (201) of the positioning flange plate (2) is in a convex shape, and the position positioner (1) is provided with a positioning groove (106) matched with the positioning end.

4. A high-precision gear pump crescent turning inner diameter assembling clamp as claimed in claim 1, wherein at least two groups of crescent positioning grooves (102) are arranged in the position positioner (1).

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