CN113245872A - B-surface clamp for rough milling gear chamber and using method thereof - Google Patents

Abstract

The invention discloses a B-surface clamp of a rough milling gear chamber, which comprises a base, wherein a first boss, a second boss, a third boss, a positioning mechanism, a first pre-positioning block, a second pre-positioning block, a third pre-positioning block, a long ejector pin, ejector pins and clamping mechanisms are arranged on the base, the first boss is arranged on one side of the base, the second boss and the third boss are respectively arranged on the other side of the base, grooves are formed among the first boss, the second boss and the third boss at intervals, the two positioning mechanisms are respectively fixed on the grooves and the second boss, the first pre-positioning block and the second pre-positioning block are respectively arranged at two ends of the first boss, the third pre-positioning block is arranged on the second boss and is close to the positioning mechanism on the second boss, the long ejector pin is arranged between the second boss and the third boss, the ejector pins are respectively arranged on the second boss and the third boss, and the clamping mechanisms are respectively arranged on the first boss, the second boss and the third boss. Also provides a using method of the clamp. The clamp is convenient and quick to use, uniform in positioning, small in vibration in the machining process, stable in machining quality, capable of greatly improving machining efficiency and suitable for popularization.

Description

B-surface clamp for rough milling gear chamber and using method thereof

Technical Field

The invention belongs to the technical field of tools and clamps, and particularly relates to a rough milling gear chamber B surface clamp and a using method thereof.

Background

All surfaces of a gear chamber are casting blank surfaces, and the existing gear chamber B surface processing scheme is that a gear chamber is hoisted to a platform to be scribed, then hoisted to a machine tool workbench, high-iron pads are used for positioning points, inclined pads are used for supporting other auxiliary supporting points, and then two positioning holes are corrected; clamping and then processing. This kind of processing scheme needs all to rectify plane and locating hole again at every turn of processing, and the location is inconvenient, and operation process is slow, and is inefficient, is unfavorable for batch production, and the course of working inclined pad iron is because the vibration is deviate from easily, causes the vibration to strengthen, influences processingquality.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a B-surface clamp for a rough milling gear chamber, which can be quickly positioned, has small vibration in the machining process and stable machining quality, and a using method thereof, and the specific scheme is as follows:

the utility model provides a B face anchor clamps of rough milling gear room, the on-line screen storage device comprises a base, be equipped with first boss, second boss, third boss, positioning mechanism, first pre-locating piece, second pre-locating piece, third pre-locating piece, long ejector pin, thimble and clamping mechanism on the base, first boss is established in base one side, second, three boss are established respectively at the base opposite side, interval formation recess between first, second, three boss, two positioning mechanism fix respectively on recess and second boss, first, two pre-locating pieces are installed respectively at first boss both ends, third pre-locating piece is installed on the second boss, and be close to the positioning mechanism on the second boss, long ejector pin is established between second, three boss, a plurality of thimbles are established respectively on second, three boss, a plurality of clamping mechanism set up respectively on first, second, three boss.

Further, the device comprises a plurality of jacking pieces, wherein the jacking pieces are respectively arranged on the first boss, the second boss and the third boss, each jacking piece comprises a supporting block and a jacking adjusting rod, and the jacking adjusting rods are arranged on one side of the tops of the supporting blocks.

Furthermore, the positioning mechanism comprises a positioning pin, a guide post and a guide sleeve, the positioning pin is in a round table shape, a guide sleeve positioning hole is formed in the middle of the positioning pin, the guide sleeve is installed in the guide sleeve positioning hole, one end of the guide post is fixed on the groove, the positioning pin is sleeved at the other end of the guide post in a sliding mode through the guide sleeve, the top surface of the positioning pin penetrates through the positioning pin and is fixed on the groove through a plurality of screws respectively along the circumferential direction, and springs are sleeved in the screws respectively.

Furthermore, the clamping mechanism comprises a sliding groove pressing plate, a fixing rod, an adjusting rod and a pressing plate butting piece, one end of the sliding groove pressing plate is connected with the fixing rod, a clamping space is formed between the other end of the sliding groove pressing plate and the pressing plate butting piece correspondingly arranged below the fixing rod, the distance between the clamping space and the pressing plate butting piece is adjusted through the adjusting rod movably connected to the sliding groove pressing plate, the sliding groove pressing plate is formed by connecting a trapezoidal block and a bar-shaped block or connecting a cylinder and the bar-shaped block, and the pressing plate butting piece is an ejector pin or an ejector block.

Furthermore, the first pre-positioning block, the second pre-positioning block and the third pre-positioning block are all L-shaped, the inner sides of the tops of the first pre-positioning block, the second pre-positioning block and the third pre-positioning block are respectively provided with an inclined plane, and the bottoms of the first pre-positioning block, the second pre-positioning block and the third pre-positioning block are provided with adjusting holes.

Furthermore, a plurality of U-shaped grooves are symmetrically arranged on two sides of the base, and a plurality of hanging rings are symmetrically arranged at two ends of the U-shaped grooves respectively.

A use method of a B-surface clamp of a rough milling gear chamber comprises the following steps:

(1) hoisting a gear chamber above the B-surface clamp of the rough milling gear chamber, descending along the inner sides of the first pre-positioning block, the second pre-positioning block and the third pre-positioning block to enable two positioning holes of the gear chamber to fall on conical surfaces of two positioning pins respectively, descending the two positioning pins to a set position along a guide post respectively, and supporting the gear chamber by rotating an ejector pin;

(2) clamping the gear chamber through a clamping mechanism and a jacking piece and then processing;

(3) and (3) after the gear chamber in the step (2) is processed, loosening the clamping mechanism and the jacking piece, hoisting the gear chamber, resetting the two positioning pins through springs, and continuing processing the next gear chamber according to the steps.

THE ADVANTAGES OF THE PRESENT INVENTION

Compared with the prior art, the B-surface clamp for the rough milling gear chamber is guided and positioned by the first, second and third pre-positioning blocks, so that the positioning holes in the gear chamber are correspondingly contacted with the conical surfaces of the positioning pins on the two positioning mechanisms, the effect of quick positioning is achieved, the ejector pins are used for supporting the auxiliary supporting points, the use is convenient and quick, the positioning is uniform, the problems of inconvenience in correction and repeated correction and positioning are solved, the vibration is small in the machining process, the machining quality is stable, and the machining efficiency is greatly improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the B-surface clamp for the rough milling gear chamber of the invention.

Fig. 2 is a schematic top view of fig. 1.

Fig. 3 is a front view of fig. 1.

Fig. 4 is an enlarged view of the platen with a chute of fig. 1.

FIG. 5 is an enlarged view of another pressing plate with sliding grooves in FIG. 4

Fig. 6 is an enlarged view of the structure of the top block of fig. 1.

FIG. 7 is an enlarged view of the thimble structure shown in FIG. 1.

Fig. 8 is an enlarged view of the first, second and third pre-positioning blocks of fig. 1.

Fig. 9 is an enlarged view of the supporting block structure of the fastening member of fig. 1.

Fig. 10 is an enlarged view of the structure of the long lift pin of fig. 1.

Fig. 11 is a schematic view of the structure of fig. 1 clamped with the gear chamber.

In the figure:

1. a base; 2. a first boss; 3. a second boss; 4. a third boss; 5. a first pre-positioning block; 6. a second pre-positioning block; 7. a third pre-positioning block; 8. a long ejector rod; 9. a thimble; 10. a top tightening member; 11. a gear chamber; 12. positioning pins; 13. a guide post; 14. a guide sleeve; 15. a screw; 16. a spring; 17. a U-shaped groove; 18. a hoisting ring; 19. a pressing plate with a chute; 20. pressing plate opposite-ejecting pieces; 21. fixing the rod; 22. and adjusting the rod.

Detailed Description

The present invention is further explained below with reference to the drawings and the embodiments, and it should be noted that the embodiments are not intended to limit the scope of the present invention.

As shown in fig. 1 to 11, in the embodiment of the B-surface fixture for the rough milling gear chamber and the use method thereof, the B-surface fixture for the rough milling gear chamber includes a base 1, and preferably, four U-shaped grooves 17 matched with a machine tool in operation are further symmetrically arranged on two sides of the base 1, so as to fix the base 1 on a machine tool workbench through bolts. Two ends of the base 1 are respectively and symmetrically provided with two hanging rings 18, so that the lifting is convenient.

The base 1 is provided with a first boss 2, a second boss 3, a third boss 4, a positioning mechanism, a first pre-positioning block 5, a second pre-positioning block 6, a third pre-positioning block 7, a long ejector rod 8, an ejector pin 9, a clamping mechanism and four ejector pieces 10.

The first boss 2 is arranged on one side of the base 1, the second bosses 3 and the third bosses 4 are respectively arranged on the other side of the base, grooves are formed among the first bosses 2, the second bosses 3 and the third bosses 4 at intervals, and the grooves are used for avoiding the protruding part of the surface B of the gear chamber 11. The two positioning mechanisms are respectively and fixedly installed on the groove and the second boss 3, specifically, each positioning mechanism respectively comprises a positioning pin 12, a guide pillar 13 and a guide sleeve 14, the positioning pin 12 is in a circular truncated cone shape, and the purpose of the positioning pin 12 is that the conical surface can play a role in positioning the gear chamber 11 in the X, Y direction all the time. The middle part of the positioning pin 12 is provided with a guide sleeve positioning hole, the guide sleeve 13 is arranged in the guide sleeve positioning hole, one end of the guide post 13 is fixed in the groove, the positioning pin 12 is sleeved at the other end of the guide post 13 through the guide sleeve 14 in a sliding manner, and when the gear chamber 11 falls on the conical surface of the positioning pin 12, the positioning pin 14 can slide downwards along the guide post 13 due to the gravity of the gear chamber 11, so that the positioning effect is achieved. The top surface of the positioning pin 12 penetrates through the positioning pin 12 through four screws 15 respectively along the circumferential direction and is fixed on the groove, and springs 16 are sleeved in the four screws 15 respectively.

The guide post 13 functions to enable the locating pin 12 to slide axially on the guide post 13.

The spring 16 is used for enabling the positioning pin 12 to reset to the original position when the gear chamber 11 is lifted, so that the next gear chamber 11 can be conveniently machined.

The positioning mechanism has the function of uniformly positioning the gear chamber 11 without re-correction, thereby greatly improving the working efficiency.

The first pre-positioning block 5 and the second pre-positioning block 6 are respectively mounted at two ends of the first boss 2 in parallel, the third pre-positioning block 7 is mounted on the second boss 3 and close to the positioning mechanism on the second boss 3, preferably, as shown in fig. 8, the first pre-positioning block 5, the second positioning block 6 and the third positioning block 7 are respectively L-shaped, the inner sides of the tops thereof are respectively provided with an inclined plane, and the bottoms thereof are provided with adjusting holes. The long ejector rod 8 is arranged between the second boss 3 and the third boss 4, and aims to enable the long ejector rod 8 to be in contact with the gear chamber 11 to play a role in auxiliary support. Two thimbles 9 are respectively arranged on the second 3 and third 4 bosses. Specifically, as shown in fig. 7, the thimble 9 is provided with a square concave position capable of being sleeved in a wrench for rotating and tightening, and a small plane with a top surface for jacking, and the thimble 9 is in contact with the gear chamber 11 and can jack the gear chamber 11 tightly without causing an influence on the processing quality due to excessive vibration in the processing process. The first pre-positioning block 5, the second pre-positioning block 6 and the third pre-positioning block 7 aim at playing a role in auxiliary positioning, when the gear chamber 11 is hoisted to the upper side of the clamp, the gear chamber slowly descends along the inner sides of the first pre-positioning block 5, the second pre-positioning block 6 and the third pre-positioning block 7, and two positioning holes in the gear chamber 11 can accurately fall on the conical surfaces of the two positioning pins 12 respectively.

Preferably, each clamping mechanism comprises a sliding groove pressing plate 19, a fixed rod 20, an adjusting rod 21 and a pressing plate ejecting piece 22, one end of the sliding groove pressing plate 19 is connected with one end of the fixed rod 20, the other end of the fixed rod 20 is fixed on the boss, a clamping space is formed between the other end of the sliding groove pressing plate 19 and the pressing plate ejecting piece 22 correspondingly arranged below the sliding groove pressing plate, the pressing plate ejecting piece 22 is installed on the boss, the distance between the clamping spaces is adjusted through the adjusting rod 21 movably connected to the sliding groove pressing plate 19, and the effect of clamping the gear chamber 11 is achieved. Specifically, the adjusting rod 21 is formed by connecting a double-threaded screw and two nuts, the double-threaded screw movably penetrates through a sliding chute on the sliding chute pressing plate 19, the two ends of the double-threaded screw are respectively connected with the nuts, and the nuts at the bottom end of the double-threaded screw are fixed on the bosses. The purpose of the adjusting rod 21 is to be able to move horizontally in the chute with the chute pressing plate 19; secondly, the distance between the clamping space between the pressing plate 19 with the sliding groove and the pressing plate butting part 22 can be adjusted by adjusting the tightness of the double-end screw and the nut, so that the gear chamber 11 is conveniently clamped and loosened. The pressing plate 19 with the sliding groove is formed by connecting a trapezoidal block and a strip-shaped block or formed by connecting a cylinder and a strip-shaped block, and the pressing plate butting piece 22 is an ejector pin or an ejector block.

The top tightening piece 10 is composed of a supporting block and a top tightening adjusting rod, and the top tightening adjusting rod is fixed on one side of the top of the supporting block. Preferably, the jacking adjusting rod is composed of a bolt and a nut, the bolt penetrates through the top of the supporting block, and the jacking degree between the bolt and the side face of the gear chamber 11 is adjusted through the nut.

Five clamping mechanisms are respectively arranged on the first boss 2, the second boss 3 and the third boss 4, and four jacking pieces 10 are respectively arranged on the first boss 2, the second boss 3 and the third boss 4.

Preferably, as shown in fig. 1, two clamping mechanisms which are formed by connecting a trapezoidal block and a bar block and are provided with a sliding groove pressing plate 19 and a pressing plate abutting piece 22 as abutting blocks are respectively installed on the two end heads of the first boss 2, a first pre-positioning block 5 and a second pre-positioning block 6 are installed between the two clamping mechanisms, two abutting pieces 10 are installed between the first pre-positioning block 5 and the second pre-positioning block 6 in parallel, and a clamping mechanism which is formed by connecting a cylinder and a bar block and is provided with a sliding groove pressing plate 19 and a pressing plate abutting piece 22 as an ejector pin is also installed between the two abutting pieces 10.

The left side of the second boss 3 is provided with a clamping mechanism and a third pre-positioning block 7 which are formed by connecting a cylinder and a strip-shaped block, wherein the clamping mechanism is provided with a sliding groove pressing plate 19 and a pressing plate butting piece 22 which are ejector pins, one end of the right side of the second boss is provided with an ejector piece 10, the ejector piece 10 is arranged at an angle of 30-45 degrees, the ejector pins 9 are arranged at the adjacent positions of the ejector pieces 10, and a positioning mechanism is arranged among the clamping mechanism, the third pre-positioning block 7 and the ejector piece 10.

A clamping mechanism which is formed by connecting a trapezoidal block and a strip-shaped block and is provided with a sliding groove pressing plate 19 and a pressing plate butting piece 22 as a jacking block is arranged above the left side of the third boss 4, a jacking piece 10 is arranged beside the clamping mechanism, the jacking piece 10 is arranged at an angle of 30-45 degrees and is opposite to the jacking piece 10 of the second boss 3, and a thimble 9 is arranged below the right side of the jacking piece.

A use method of a B-surface clamp of a rough milling gear chamber comprises the following steps:

(1) hoisting a gear chamber 11 above a B-surface clamp of a rough milling gear chamber, descending along the inner sides of a first pre-positioning block 5, a second pre-positioning block 6 and a third pre-positioning block 7 until two positioning holes on the gear chamber 11 respectively fall on conical surfaces of two positioning pins 12, positioning the gear chamber 11 in the direction of X, Y, continuously descending, respectively descending the two positioning pins 12 to set positions along guide pillars 13 under the action of gravity of the gear chamber 11, wherein the set positions are positions of each pressing plate opposite to an ejecting piece 22, positioning in the direction of X, Y is always kept on the gear chamber 11, and the gear chamber 11 is supported in an auxiliary manner by rotating an ejector pin 9, so that vibration in the machining process is reduced;

(2) the gear chamber 11 in the step (1) is pressed tightly on the pressing plate butting piece 22 by the pressing plate 19 with the sliding chute through adjusting the adjusting rod 21 of the clamping mechanism, and the butting adjusting rod is tightly pressed by the pressing plate from the side to tightly butt the gear chamber 11 for processing through adjusting the butting adjusting rod on the butting piece 10, so that the excessive vibration in the processing process is prevented;

(3) and (3) after the gear chamber 11 in the step (2) is processed, loosening the clamping mechanism and the jacking piece, hoisting the gear chamber 11, resetting the two positioning pins 12 through the springs 16, and continuing processing the next gear chamber 11 according to the steps.

Claims (7)

1. The utility model provides a B face anchor clamps of rough milling gear room, a serial communication port, the on-line screen storage device comprises a base, be equipped with first boss, second boss, third boss, positioning mechanism, first pre-positioning piece, second pre-positioning piece, third pre-positioning piece, long ejector pin, thimble and clamping mechanism on the base, first boss is established in base one side, second, three boss are established respectively at the base opposite side, the interval forms the recess between first, second, three boss, two positioning mechanism fix respectively on recess and second boss, first, two pre-positioning pieces are installed respectively at first boss both ends, third pre-positioning piece is installed on the second boss, and be close to the positioning mechanism on the second boss, long ejector pin is established between second, three boss, a plurality of ejector pins are established respectively on second, three boss, a plurality of clamping mechanism set up respectively on first, second, three boss.

2. The B surface clamp of the rough milling gear chamber as claimed in claim 1, comprising a plurality of jacking members, wherein the jacking members are respectively arranged on the first boss, the second boss and the third boss, the jacking members are composed of supporting blocks and jacking adjusting rods, and the jacking adjusting rods are arranged on one sides of the tops of the supporting blocks.

3. The B-side fixture for the rough milling gear chamber according to claim 1, wherein the positioning mechanism comprises a positioning pin, a guide post and a guide sleeve, the positioning pin is in a circular truncated cone shape, a guide sleeve positioning hole is formed in the middle of the positioning pin, the guide sleeve is installed in the guide sleeve positioning hole, one end of the guide post is fixed on the groove, the positioning pin is slidably sleeved on the other end of the guide post through the guide sleeve, the top surface of the positioning pin penetrates through the positioning pin and is fixed on the groove through a plurality of screws respectively along the circumferential direction, and springs are sleeved in the plurality of screws respectively.

4. The B surface clamp of the rough milling gear chamber according to claim 1, wherein the clamping mechanism comprises a sliding groove pressing plate, a fixed rod, an adjusting rod and a pressing plate butting piece, one end of the sliding groove pressing plate is connected with the fixed rod, a clamping space is formed between the other end of the sliding groove pressing plate and the pressing plate butting piece correspondingly arranged below the fixed rod, the distance of the clamping space is adjusted through the adjusting rod movably connected to the sliding groove pressing plate, the sliding groove pressing plate is formed by connecting a trapezoidal block and a bar-shaped block or formed by connecting a cylinder and a bar-shaped block, and the pressing plate butting piece is an ejector pin or a top block.

5. The B-surface fixture for the rough milling gear chamber according to claim 1, wherein the first pre-positioning block, the second pre-positioning block and the third pre-positioning block are each L-shaped, and have inclined surfaces on the inner sides of the tops thereof and adjustment holes on the bottoms thereof.

6. The B surface clamp for the rough milling gear chamber according to claim 1, wherein a plurality of U-shaped grooves are symmetrically formed on two sides of the base, and a plurality of hanging rings are symmetrically formed on two ends of each U-shaped groove.

7. The use method of the B-surface clamp of the rough milling gear chamber is characterized by comprising the following steps:

(1) hoisting a gear chamber above the B-surface clamp of the rough milling gear chamber according to any one of claims 1 to 6, descending along the inner sides of the first pre-positioning block, the second pre-positioning block and the third pre-positioning block to enable two positioning holes of the gear chamber to fall on the conical surfaces of two positioning pins respectively, descending along the guide posts to a set position respectively, and supporting the gear chamber by rotating the ejector pins;

(2) clamping the gear chamber through a clamping mechanism and a jacking piece and then processing;

(3) and (3) after the gear chamber in the step (2) is processed, loosening the clamping mechanism and the jacking piece, hoisting the gear chamber, resetting the two positioning pins through springs, and continuing processing the next gear chamber according to the steps.

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