CN216541917U - High accuracy crescent gear pump plastic rod length turning equipment tool - Google Patents
High accuracy crescent gear pump plastic rod length turning equipment tool Download PDFInfo
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- CN216541917U CN216541917U CN202122579386.4U CN202122579386U CN216541917U CN 216541917 U CN216541917 U CN 216541917U CN 202122579386 U CN202122579386 U CN 202122579386U CN 216541917 U CN216541917 U CN 216541917U
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Abstract
A high-precision internal gear pump plastic rod length turning assembly jig comprises a combined taper circular arc connector, two taper circular arc positioning movable blocks, a limiting clamping base and a turning clamping step positioning rod, wherein the limiting clamping base and the turning clamping step positioning rod are matched with the combined taper circular arc connector; two sides of the combined taper circular arc connector are provided with the taper circular arc positioning movable blocks matched with the combined taper circular arc connector; the turning clamping step positioning rod is provided with a limiting step matched with the cavity; the limiting clamping base comprises a base body, a reserved plate and a positioning column. The clamping device is simple in overall structure, easy to clamp and large in machining quantity, machining efficiency and clamping efficiency are improved while machining precision is guaranteed, stability of clamped parts is greatly improved due to the designed concave-convex positioning grooves and the designed spring spacing grooves, and risks of clamping plastic rods and deformation are reduced.
Description
Technical Field
The utility model relates to the technical field of internal gear pumps, in particular to a high-precision internal gear pump plastic rod length turning and assembling jig.
Background
The internal gear pump is a hydraulic pump widely applied to a hydraulic system and is mainly formed by assembling an inner gear ring driven by a gear shaft, a crescent main plate, a crescent auxiliary plate, a positioning rod, an upper oil distribution disc, a lower oil distribution disc and other structures after two gears are combined. Wherein the length precision of the plastic rod plays a key role in the working tightness and stability of the gear pump.
In the prior art, when plastic rods are processed and produced by various large hydraulic part manufacturers, injection molding and single-piece turning of a numerically controlled lathe after injection molding are still adopted, and when most of the manufacturers adopt injection molding, the length error of the produced plastic rods is large, the upper end surface and the lower end surface are not flat, and when the single-piece turning of the numerically controlled lathe is carried out by other manufacturers after injection molding, the plastic rods are small in diameter and do not have good guiding installation, so that the machining efficiency is low, the clamping is frequent, clamping damage and deformation are easily caused in the clamping process, the parallelism of products is difficult to guarantee, the appearance is damaged, after the gear pump is assembled and used, the working stability of the gear pump is poor, the flow is reduced due to the fact that the gear pump is not in place, the service life is short, and the rejection rate is high.
Accordingly, the prior art is subject to improvements and enhancements.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a high-precision internal gear pump plastic rod length turning and assembling jig, and solves the technical problems that the clamping damage and deformation cannot be effectively prevented when the clamping of the existing similar furniture is not avoided in the plastic rod turning process, the clamping is inconvenient in processing, and the part processing efficiency and the clamping efficiency are low.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a high-precision internal gear pump plastic rod length turning assembly jig comprises a combined taper arc connector, two taper arc positioning movable blocks, a limiting clamping base and a turning clamping step positioning rod which are matched with the three,
the middle part of the combined taper circular arc connector is provided with a cavity, two side surfaces of the combined taper circular arc connector are provided with a plurality of first semicircular circular arc positioning grooves which are arranged in parallel, the middle parts of the two side surfaces are symmetrically provided with bulges, the end parts of the bulges are provided with first spring avoiding grooves for mounting springs, first threaded holes which are used for mounting hexagon socket head cap screws and are communicated with the first spring avoiding grooves and the cavity are arranged between the first spring avoiding grooves and the cavity, and one end of the combined taper circular arc connector is provided with a second threaded hole which is communicated with the cavity and is used for mounting machine-meter screws;
the two sides of the combined taper circular arc connector are provided with the taper circular arc positioning movable blocks matched with the combined taper circular arc connector, and the taper circular arc positioning movable blocks are provided with second semicircular arc positioning grooves correspondingly matched with the first semicircular arc positioning grooves, screw through holes and second spring avoiding grooves correspondingly matched with the first spring avoiding grooves and used for installing springs;
the turning clamping step positioning rod is provided with a limiting step matched with the cavity;
the limiting clamping base comprises a base body, a reserved plate arranged on the base body and a positioning column arranged on the reserved plate and matched with the cavity.
As a further aspect of the present invention, the combined tapered circular arc connector is provided with at least ten first semicircular arc positioning grooves and at least ten second semicircular arc positioning grooves.
As a further scheme of the utility model, two ends of the first semicircular arc positioning groove or the second semicircular arc positioning groove are respectively provided with a tapered chute.
As a further proposal of the utility model, the depth of the tapered oblique groove is 2mm, and the angle is 7.5 degrees.
As a further scheme of the utility model, the top end of the turning and clamping step positioning rod is provided with a centre hole.
Compared with the prior art, the utility model has the beneficial effects that:
the clamping device is simple in overall structure, easy to clamp and large in machining quantity, machining efficiency and clamping efficiency are improved while machining precision is guaranteed, stability of clamped parts is greatly improved due to the designed concave-convex positioning grooves and the designed spring spacing grooves, and risks of clamping plastic rods and deformation are reduced.
The utility model is suitable for being used as a processing clamp of various existing gear pump sealing plastic rods or the structural improvement of similar products.
Drawings
FIG. 1 is a schematic view of the assembled taper circular arc connector, two taper circular arc positioning movable blocks and a limiting clamping base;
FIG. 2 is a schematic view of the assembled taper circular arc connector, two taper circular arc positioning movable blocks and turning clamping step positioning rods;
FIG. 3 is a schematic view of the assembled tapered circular connector and two tapered circular positioning movable blocks of the present invention;
FIG. 4 is a schematic view of a composite tapered circular arc connector of the present invention;
FIG. 5 is a side view of the combination tapered circular arc connector of the present invention;
FIG. 6 is a schematic view of a tapered arc positioning movable block according to the present invention;
FIG. 7 is a side view of the tapered arc positioning movable block of the present invention;
FIG. 8 is a schematic view of a turning and clamping step positioning rod according to the present invention;
figure 9 is a schematic view of a limit clamp base of the present invention.
The reference numbers in the figures are respectively:
10-a combined taper arc connector, 20-a taper arc positioning movable block, 30-a limiting clamping base and 40-a turning clamping step positioning rod;
11-a cavity, 12-a first semicircular arc positioning groove, 13-a bulge, 14-a spring, 15-a first spring positioning groove, 16-a first threaded hole, 17-a machine-meter screw and 18-a second threaded hole;
21-a threaded through hole, 22-a second spring avoiding groove and 23-a second semi-circular arc positioning groove;
41-limit step, 42-center hole of tip;
31-a base body, 32-a reserved plate and 33-a positioning column;
50-tapered chute.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings:
example (b):
referring to fig. 1-9, the utility model relates to a high-precision internal gear pump plastic rod length turning assembly jig, which comprises a combined taper arc connector 10, two taper arc positioning movable blocks 20, a limiting clamping base 30 and a turning clamping step positioning rod 40 which are matched with the three,
a cavity 11 is formed in the middle of the combined taper circular arc connector 10, ten first semicircular circular arc positioning grooves 12 which are arranged in parallel are formed in two side faces of the combined taper circular arc connector, protrusions 13 are symmetrically formed in the middles of the two side faces, a first spring avoiding groove 15 for mounting a spring 14 is formed in the end portion of each protrusion 13, a first threaded hole 16 which is used for mounting an inner hexagonal screw (not shown in the drawing) and communicated with the first spring avoiding groove 15 and the cavity 11 is formed between the first spring avoiding groove 15 and the cavity 11, and a second threaded hole 18 which is communicated with the cavity 11 and used for mounting a machine-rice screw 17 is formed in one end of the combined taper circular arc connector 10;
the two sides of the combined taper circular arc connector 10 are provided with the taper circular arc positioning movable blocks 20 matched with the combined taper circular arc connector, and the taper circular arc positioning movable blocks 20 are provided with second semicircular arc positioning grooves 23 correspondingly matched with the first semicircular arc positioning grooves 12, screw through holes 21 and second spring avoiding grooves 22 correspondingly matched with the first spring avoiding grooves 15 and used for installing springs;
the turning and clamping step positioning rod 40 is provided with a limiting step 41 matched with the cavity 11;
the limiting clamping base 30 comprises a base body 31, a reserved plate 32 arranged on the base body 31 and a positioning column 33 arranged on the reserved plate 32 and matched with the cavity 11.
During assembly, a spring 14 is arranged in a first spring avoiding groove 15 of the combined taper circular arc connector 10, a second spring avoiding groove 22 of the taper circular arc positioning movable block 20 corresponds to the first spring avoiding groove of the taper circular arc connector 10, an inner hexagonal screw penetrates through a screw through hole of the taper circular arc positioning movable block and is aligned with a first threaded hole in the combined taper circular arc connector 10 for locking, a cavity 11 of the combined taper circular arc connector 10 is sleeved into a limiting step 41 of a turning clamping step positioning rod 40, a second threaded hole 18 is formed in the side face of the taper circular arc connector 10, and a machine-meter screw 17 is placed in the second threaded hole 18 and is locked until the machine-meter screw 17 abuts against the turning clamping step positioning rod 40.
When the turning process is carried out, the combined taper circular arc connector 10 can be directly taken out only by loosening the machine-meter screw 17, the hexagon socket screw for fixing the taper circular arc positioning movable block 20 is loosened, the spring can bounce the taper circular arc positioning movable block, the plastic rod can automatically fall off, the cavity 11 of the combined taper circular arc connector 10 is sleeved into the limiting clamping base 30, the plastic rod is arranged in the limiting clamping base, the two taper circular arc positioning movable blocks 20 are locked, and then the turning clamping step positioning rod 40 is sleeved to lock the machine-meter screw 17.
When the combined taper circular arc connector is implemented, the same two combined taper circular arc connectors can be manufactured, so that synchronous feeding can be realized during processing, the combined taper circular arc connector provided with the plastic rod can be sleeved into the turning clamping step positioning rod after the combined taper circular arc connector is replaced by the plastic rod during next clamping, and the combined taper circular arc connector can be directly processed after the screw is locked. The two combined taper circular arc connectors which are combined well can maximize clamping efficiency, and loading is not needed after equipment is machined.
The tapered chutes 50 are arranged at the two ends of the first semicircular arc positioning groove 12 and the second semicircular arc positioning groove 23, the tapered chutes are 2mm deep and 7.5 degrees, the tapered chutes 50 of the first semicircular arc positioning groove and the second semicircular arc positioning groove are more beneficial to putting in plastic rods, and the plastic rods are prevented from being clamped and deformed due to clamping errors when the first semicircular arc positioning groove and the second semicircular arc positioning groove clamp the plastic rods.
The top end of the turning clamping step positioning rod 40 is provided with a center hole 42, and the center of a machine tool can be used during turning processing so as to prevent the clamp from generating small shaking due to the fact that the machine tool rotates too fast and the centrifugal force is large, and therefore the turning stability of the plastic rod is improved.
In conclusion, the utility model solves the defects in the prior art through the structural design and has the characteristics of simple structure, reasonable design, high efficiency and the like.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (5)
1. The utility model provides a high accuracy crescent gear pump plastic rod length turning equipment tool which characterized in that: comprises a combined taper arc connector, two taper arc positioning movable blocks, a limiting clamping base and a turning clamping step positioning rod which are matched with the three,
the middle part of the combined taper circular arc connector is provided with a cavity, two side surfaces of the combined taper circular arc connector are provided with a plurality of first semicircular circular arc positioning grooves which are arranged in parallel, the middle parts of the two side surfaces are symmetrically provided with bulges, the end parts of the bulges are provided with first spring avoiding grooves for mounting springs, first threaded holes which are used for mounting hexagon socket head cap screws and are communicated with the first spring avoiding grooves and the cavity are arranged between the first spring avoiding grooves and the cavity, and one end of the combined taper circular arc connector is provided with a second threaded hole which is communicated with the cavity and is used for mounting machine-meter screws;
the two sides of the combined taper circular arc connector are provided with the taper circular arc positioning movable blocks matched with the combined taper circular arc connector, and the taper circular arc positioning movable blocks are provided with second semicircular arc positioning grooves correspondingly matched with the first semicircular arc positioning grooves, screw through holes and second spring avoiding grooves correspondingly matched with the first spring avoiding grooves and used for installing springs;
the turning clamping step positioning rod is provided with a limiting step matched with the cavity;
the limiting clamping base comprises a base body, a reserved plate arranged on the base body and a positioning column arranged on the reserved plate and matched with the cavity.
2. The high-precision internal gear pump plastic rod length turning and assembling jig is characterized in that: the combined taper circular arc connector is provided with at least ten first semicircular arc positioning grooves and at least ten second semicircular arc positioning grooves.
3. The high-precision internal gear pump plastic rod length turning and assembling jig is characterized in that: and two ends of the first semicircular arc positioning groove or the second semicircular arc positioning groove are provided with tapered chutes.
4. The high-precision internal gear pump plastic rod length turning and assembling jig is characterized in that: the depth of the tapered oblique groove is 2mm, and the angle is 7.5 degrees.
5. The high-precision internal gear pump plastic rod length turning and assembling jig is characterized in that: and the top end of the turning and clamping step positioning rod is provided with a center hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122579386.4U CN216541917U (en) | 2021-10-26 | 2021-10-26 | High accuracy crescent gear pump plastic rod length turning equipment tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122579386.4U CN216541917U (en) | 2021-10-26 | 2021-10-26 | High accuracy crescent gear pump plastic rod length turning equipment tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216541917U true CN216541917U (en) | 2022-05-17 |
Family
ID=81568934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122579386.4U Active CN216541917U (en) | 2021-10-26 | 2021-10-26 | High accuracy crescent gear pump plastic rod length turning equipment tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216541917U (en) |
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2021
- 2021-10-26 CN CN202122579386.4U patent/CN216541917U/en active Active
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