CN212420877U

CN212420877U - Honing clamp for rotor

Info

Publication number: CN212420877U
Application number: CN202021081085.8U
Authority: CN
Inventors: 王顺; 陈薪竹; 李道进
Original assignee: AVIC Liyuan Hydraulic Co Ltd
Current assignee: AVIC Liyuan Hydraulic Co Ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-01-29
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses a honing fixture for rotors, which comprises a fixture main body (1), a first positioning shaft (2) and a positioning mechanism (3); anchor clamps main part (1) includes chassis (101), be equipped with on chassis (101) with first locating shaft (2) complex locating hole (102), be equipped with the fixed establishment who is used for being connected with the honing equipment on chassis (101), be equipped with first locating shaft (2) on chassis (101), the both sides of first locating shaft (2) all are equipped with hold-down mechanism, be equipped with clamp plate (103) that are used for compressing tightly the rotor on the hold-down mechanism, the edge of chassis (101) is equipped with base (104), be equipped with guide way (105) that hold positioning mechanism (3) on base (104). The utility model has the advantages of the anchor clamps cost is lower, do benefit to warehouse management and save, the rotor installation is comparatively simple and the security is higher.

Description

Honing clamp for rotor

Technical Field

The utility model belongs to the honing process field of the last rotor of variable displacement motor plunger pump especially relates to a honing anchor clamps of the last rotor of variable displacement motor plunger pump.

Background

The structure of the rotor on the variable motor plunger pump is disc-shaped, is equipped with the centre bore on the axis of rotor, and the outside of centre bore is equipped with a plurality of plunger holes, and a plurality of plunger holes all need carry out the honing and handle to improve the size precision in plunger hole.

Before the plunger hole is honed, the rotor needs to be positioned on a honing device through a clamp. The existing clamp can only position the rotor with a single specification, can not be universal between rotors with different specifications, so that a factory needs to correspondingly prepare clamps with various specifications, the number and types of the clamps are increased, the cost of the clamp is high, and the clamp is not favorable for warehouse management and preservation.

The rotor belongs to mass production's part, and is a large amount, but under the structure of current anchor clamps, the installation of rotor on anchor clamps is more troublesome, and the installation is consuming time longer, has increased workman's intensity of labour, has reduced the production efficiency of rotor.

During honing, can produce a lot of iron fillings, the iron fillings remain and adhere to on anchor clamps under the coolant liquid effect, and is a large amount, when workman's installation rotor, probably fish tail workman, and the security of anchor clamps is lower.

Therefore, the existing clamp has the defects of higher clamp cost, inconvenience for warehouse management and storage, troublesome rotor installation and lower safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a honing anchor clamps for rotor. The utility model has the advantages of the anchor clamps cost is lower, do benefit to warehouse management and save, the rotor installation is comparatively simple and the security is higher.

The technical scheme of the utility model: a honing jig for a rotor includes a jig main body, a first positioning shaft, and a positioning mechanism; the anchor clamps main part includes the chassis, is equipped with on the chassis with first locating shaft complex locating hole, is equipped with the fixed establishment who is used for being connected with the honing equipment on the chassis, is equipped with first locating shaft on the chassis, and the both sides of first locating shaft all are equipped with hold-down mechanism, are equipped with the clamp plate that is used for compressing tightly the rotor on the hold-down mechanism, and the edge on chassis is equipped with the base, is equipped with the guide way that holds hold positioning mechanism on the base.

In the honing fixture for the rotor, the fixing mechanism comprises a second positioning shaft connected with the bottom surface of the base plate, one side of the second positioning shaft is provided with an orientation pin fixed with the base plate, and the honing fixture further comprises a screw penetrating through the base plate from top to bottom.

In the honing fixture for the rotor, the second positioning shaft is in threaded connection with the base plate, the top of the second positioning shaft is provided with a positioning hole matched with the first positioning shaft, and the positioning hole extends upwards through the base plate.

In the honing fixture for the rotor, the top of the first positioning shaft is provided with the chip removal inlet hole, and the side wall of the first positioning shaft is provided with a plurality of chip removal outlet holes which are connected with the chip removal inlet hole.

In the honing fixture for the rotor, the pressing mechanism comprises a cushion block fixed with the chassis, a pressing plate is arranged above the cushion block, a stud is arranged between the cushion block and the pressing plate, a spring is sleeved on the stud, one end of the stud penetrates through the cushion block and is in threaded connection with the chassis, the other end of the stud penetrates through the pressing plate, a nut is arranged at the other end of the stud, and a height-adjustable adjusting support is arranged on the outer side of the stud.

In the honing fixture for the rotor, the positioning mechanism comprises a base plate matched with the guide groove, and a mandrel matched with the plunger hole of the rotor is arranged at one end of the base plate.

In the honing fixture for the rotor, the base plate is provided with a plurality of chip grooves.

Compared with the prior art, the utility model discloses a change first locating shaft and dabber, can realize realizing the clamping to the rotor of different specifications, realize generally to reduce the anchor clamps kind and the quantity that the mill was equipped with, reduce the anchor clamps cost, and be favorable to the warehouse to manage and preserve. The utility model discloses a structural optimization makes the installation of rotor on anchor clamps simpler, and the installation is consuming time shorter, has reduced workman's intensity of labour, has improved the production efficiency of rotor. Through setting up chip groove and chip removal hole on anchor clamps, make the partly iron fillings that produce during the honing automatically arrange away from anchor clamps, and make things convenient for the workman to clear up surplus iron fillings and coolant liquid with high-pressure air gun to make the workman be difficult for by the iron fillings fish tail when the installation rotor, the security of anchor clamps is higher. Therefore, the utility model has the advantages of the anchor clamps cost is lower, do benefit to warehouse management and save, the rotor installation is comparatively simple and the security is higher.

Drawings

Fig. 1 is a front view of a clamp body.

Fig. 2 is a top view of the clamp body.

Fig. 3 is a cross-sectional view at a-a of fig. 2.

Fig. 4 is a front view of the first positioning shaft.

Fig. 5 is a front view of the positioning mechanism.

Fig. 6 is a top view of the positioning mechanism.

Fig. 7 is a top view of the rotor.

Fig. 8 is a left side view of the rotor.

The labels in the figures are: 1-a clamp body, 2-a first positioning shaft, 3-a positioning mechanism, 4-a central hole, 5-a plunger hole, 101-a chassis, 102-a positioning hole, 103-a pressing plate, 104-a base, 105-a guide groove, 106-a second positioning shaft, 107-an orientation pin, 108-a screw, 109-a cushion block, 110-a stud, 111-a spring, 112-a nut, 113-an adjustment support, 114-a chip removal groove, 115-a positioning pin, 116-a screw, 201-a chip removal inlet hole, 202-a chip removal outlet hole, 301-a base plate and 302-a mandrel.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A honing fixture for a rotor is used for machining the rotor of an L6VM series variable motor plunger pump shown in figures 7 and 8, the rotor is disc-shaped, a central hole 4 is formed in the central axis of the rotor, seven plunger holes 5 are formed in the outer side of the central hole, and honing treatment is needed to be carried out on the seven plunger holes 5 so as to improve the dimensional accuracy of the plunger holes 5.

A honing jig for a rotor, as shown in fig. 1 to 6, includes a jig main body 1, a first positioning shaft 2 and a positioning mechanism 3; the clamp body 1 comprises a chassis 101, a positioning hole 102 in clearance fit with a first positioning shaft 2 is formed in the chassis 101, a fixing mechanism used for being connected with honing equipment is arranged on the chassis 101, the first positioning shaft 2 is arranged on the chassis 101, pressing mechanisms are arranged on two sides of the first positioning shaft 2, pressing plates 103 used for pressing rotors are arranged on the pressing mechanisms, a base 104 is arranged at the edge of the chassis 101, and a guide groove 105 used for accommodating the positioning mechanism 3 is formed in the base 104. A positioning pin 115 is arranged between the base 104 and the chassis 101, and the base 104 is connected with the chassis 101 through a screw 116.

The fixing mechanism comprises a second positioning shaft 106 connected with the bottom surface of the chassis 101, one side of the second positioning shaft 106 is provided with an orientation pin 107 fixed with the chassis 101, and a screw 108 penetrating through the chassis 101 from top to bottom.

The second positioning shaft 106 is in threaded connection with the chassis 101, a positioning hole 102 matched with the first positioning shaft 2 is formed in the top of the second positioning shaft 106, and the positioning hole 102 extends upwards through the chassis 101.

The top of first locating shaft 2 is equipped with chip removal inlet 201, is equipped with a plurality of chip removals 202 that all are connected with chip removal inlet 201 on the lateral wall of first locating shaft 2, and the chip removal is walked 202 and is had four, circumference evenly distributed.

The pressing mechanism comprises a cushion block 109 fixed with the chassis 101, a pressing plate 103 is arranged above the cushion block 109, a stud 110 is arranged between the cushion block 109 and the pressing plate 103, a spring 111 is sleeved on the stud 110, one end of the stud 110 penetrates through the cushion block 109 to be in threaded connection with the chassis 101, the other end of the stud 110 penetrates through the pressing plate 103, a nut 112 is arranged at the other end of the stud 110, and a height-adjustable adjusting support 113 is arranged on the outer side of the stud 110. The adjustment support 113 is, for example, a screw having one end inserted into the spacer 109.

The positioning mechanism 3 comprises a base plate 301 in clearance fit with the guide groove 105, a mandrel 302 in clearance fit with a plunger hole of the rotor is arranged at one end of the base plate 301, and the mandrel 302 is in threaded connection with the base plate 301.

A plurality of chip grooves 114 are formed on the chassis 101.

The utility model discloses an use: the clamp body 1 is placed on a worktable of honing equipment, the second positioning shaft 106 is inserted into a hole site reserved on the worktable, the hole site is in clearance fit with the second positioning shaft 106, the orientation pin 107 is inserted into a long groove reserved on the worktable, the orientation pin 107 is also in clearance fit with the long groove, and then the screw 108 is rotated to enable the screw 108 to be screwed into a screw hole reserved on the worktable. The fixture body 1 is fixed to the honing apparatus.

The first positioning shaft 2 is inserted into the positioning hole 102, the rotor is placed on the chassis 101 of the fixture body 1 in a manner that the plunger hole 5 faces upwards, the upper end of the first positioning shaft 2 is inserted into the central hole 4, and the rotor is positioned in the horizontal direction of the fixture body 1.

The mandrel of the positioning mechanism 3 is inserted into one of the plunger holes 5, and the base plate 301 of the positioning mechanism 3 is placed in the guide groove 105, so that the rotor is positioned in the circumferential direction of the jig main body 1.

The height of the adjusting support 113 is adjusted to make the pressure plate 103 equal to the rotor height, and the nut 112 is rotated to make the pressure plate 103 press the rotor. The rotor is fixed on the fixture body 1.

The honing apparatus is started to perform honing processing on the center hole 4 and the other six plunger holes 5, and after the processing is completed, the positioning mechanism 3 is removed, and the remaining plunger holes 5 are subjected to honing processing. When the pillar plug hole 5 is honed, the generated scrap iron is discharged from the scrap discharge groove 114 along with the cooling liquid. Scrap iron generated during the honing of the central hole is discharged through the chip discharge inlet hole 201, the chip discharge outlet hole 202 and the chip discharge groove 114 in sequence.

When the honing treatment of the rotor of another specification is replaced, the first positioning shaft 2 and the mandrel 302 of the corresponding dimension specification can be replaced correspondingly according to the dimension of the central hole 4 and the dimension of the plunger hole 5 of the rotor of the specification, so that the universal use of one clamp for the rotors of multiple specifications is realized.

The utility model has the advantages of the anchor clamps cost is lower, do benefit to warehouse management and save, the rotor installation is comparatively simple and the security is higher.

Claims

1. A honing jig for a rotor, characterized in that: comprises a clamp main body (1), a first positioning shaft (2) and a positioning mechanism (3); anchor clamps main part (1) includes chassis (101), be equipped with on chassis (101) with first locating shaft (2) complex locating hole (102), be equipped with the fixed establishment who is used for being connected with the honing equipment on chassis (101), be equipped with first locating shaft (2) on chassis (101), the both sides of first locating shaft (2) all are equipped with hold-down mechanism, be equipped with clamp plate (103) that are used for compressing tightly the rotor on the hold-down mechanism, the edge of chassis (101) is equipped with base (104), be equipped with guide way (105) that hold positioning mechanism (3) on base (104).

2. A honing jig for rotors according to claim 1, wherein: the fixing mechanism comprises a second positioning shaft (106) connected with the bottom surface of the chassis (101), an orientation pin (107) fixed with the chassis (101) is arranged on one side of the second positioning shaft (106), and the fixing mechanism further comprises a screw (108) penetrating through the chassis (101) from top to bottom.

3. A honing jig for rotors according to claim 2, wherein: the second positioning shaft (106) is in threaded connection with the chassis (101), a positioning hole (102) matched with the first positioning shaft (2) is formed in the top of the second positioning shaft (106), and the positioning hole (102) extends upwards through the chassis (101).

4. A honing jig for rotors according to claim 1, wherein: the top of first locating shaft (2) is equipped with chip removal inlet hole (201), is equipped with a plurality of chip removal that all are connected with chip removal inlet hole (201) and goes out hole (202) on the lateral wall of first locating shaft (2).

5. A honing jig for rotors according to claim 1, wherein: the pressing mechanism comprises a cushion block (109) fixed with a chassis (101), a pressing plate (103) is arranged above the cushion block (109), a stud (110) is arranged between the cushion block (109) and the pressing plate (103), a spring (111) is sleeved on the stud (110), one end of the stud (110) penetrates through the cushion block (109) and is in threaded connection with the chassis (101), the other end of the stud (110) penetrates through the pressing plate (103), a nut (112) is arranged at the other end of the stud (110), and a height-adjustable adjusting support (113) is arranged on the outer side of the stud (110).

6. A honing jig for rotors according to claim 1, wherein: the positioning mechanism (3) comprises a base plate (301) matched with the guide groove (105), and a mandrel (302) matched with a plunger hole of the rotor is arranged at one end of the base plate (301).

7. A honing jig for rotors according to claim 1, wherein: a plurality of chip grooves (114) are formed in the base plate (101).