CN107009268A - The fast mounting-dismounting built-up jig of elongate rod inwall burr is removed for abrasive flows ULTRASONIC COMPLEX - Google Patents

Abstract

A quick-installation and quick-disassembly combined fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod, characterized in that it includes: the upper body of the fixture (5), the lower body of the fixture (6), and the upper and lower parts of the upper body of the fixture (5) Both parts are set on the lower body (6) of the fixture, and the nut (4) is screwed on the threaded section of the lower body (6) of the fixture and is located between the upper and lower parts of the upper body (5) of the fixture; the upper body of the fixture The lower part of (5) is provided with an annular abrasive chamber (13), the annular abrasive chamber is fed through the feed port (14), and the lower part of the main body (5) of the fixture is provided with a circle of multiple and annular abrasive chambers (13) Interconnected discharge joints (15); the lower end of the clamp lower body (6) passes through the disc body (16) of the clamp upper body (5), and an elastic clamping hoop (3) is installed on the disc body (16), which is slender to be processed The rod passes through the installation slot (12) between the disc body (16) and the elastic clamping hoop (3) and then is inserted into the feed inlet (14). The invention has the advantages of convenient clamping and high efficiency, and can process more than 18 inner walls of slender rods at one time.

Description

Quick-installation and quick-disassembly combination for abrasive flow ultrasonic composite removal of burrs on the inner wall of slender rods fixture

technical field

The invention relates to a fixture for mechanical processing, in particular to a fixture for machining the inner wall of a slender rod with abrasive flow, in particular to a quick-installation and quick-disassembly combined fixture for ultrasonic composite removal of burrs on the inner wall of a slender rod by abrasive flow .

Background technique

The surface finishing of the workpiece has always been the focus of researchers. The surface quality of the workpiece determines the performance and reliability of the workpiece. Especially in aerospace, national defense and military, etc., its importance is particularly prominent, such as the deburring of valves and spools of parts that play an important role in aerospace, as well as metal thin tubes and cross holes in medical equipment. The deburring process of the inner wall of the slender rod also needs to be solved urgently.

Most of the original slender rod fixtures are single fixtures, the assembly and disassembly process is complicated, it is difficult to apply ultrasonic vibration, and the interior cannot pass through the abrasive flow. In order to improve efficiency, it is urgent to develop a multi-bar fixture that can be quickly assembled and disassembled in actual production.

Contents of the invention

The object of the present invention is to design a kind of abrasive flow ultrasonic compounding machine that can clamp at least 18 pieces at a time, aiming at the problem that most of the existing slender rods are single-clamped when processing the inner wall of the abrasive material, the efficiency is low, and the clamping is inconvenient. Quick-install and quick-release combination fixture for removing burrs on the inner wall of a slender rod.

Technical scheme of the present invention is:

A quick-installation and quick-disassembly combination fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod, characterized in that it includes: a fixture upper body 5, a fixture lower body 6, a tool head connector 7 and an ultrasonic vibration tool head 8, The ultrasonic vibration tool head 8 is connected to the upper end of the lower main body 6 of the fixture through the tool head connector 7, the upper and lower parts of the upper main body 5 of the fixture are both sleeved on the lower main body 6 of the fixture, and the nut 4 is screwed on the threaded section of the lower main body 6 of the fixture and located between the upper and lower parts of the fixture upper body 5, so as to control the up and down movement of the fixture upper body 5 on the fixture lower body 6; the lower part of the fixture upper body 5 is provided with an annular abrasive chamber 13, the annular abrasive The cavity is fed through the feed port 14, and a plurality of discharge joints 15 connected with the annular abrasive chamber 13 are arranged on the lower part of the clamp upper body 5; the lower end of the clamp lower body 6 passes through the bottom of the clamp upper body 5 An elastic clamping hoop 3 is installed on the disc body 16 , and the slender rod to be processed passes through the slender rod installation slot 12 between the disc body 16 and the elastic clamping hoop 3 and is inserted into the feed inlet 14 .

A circular sleeve 10 and a gasket 9 are installed in the discharge joint 15, and the gasket 9 is close to the upper wall of the discharge joint 15, and the circular sleeve 10 is located under it.

The elastic clamping hoop 3 is closely attached to the side wall of the lower disc 16 of the lower main body 6 of the fixture, and it is composed of a clamping member bolt 1, a clamping member spring 11 and a clamping member square internal thread block 2 .

The circular sleeve 10 and the washer 9 are made of rubber material.

The side wall at the bottom end of the discharge joint 15 is inclined at 15° and protrudes inward, which is used to prevent the circular sleeve 10 from slipping out and prevent the rod from interfering with the side wall.

The bottom end of the circular sleeve 10 and the inside are inclined at an angle of 2°, and the bottom end is inclined at 15° so that the circular sleeve 10 can be stopped in the discharge joint 15 and prevent interference with the rod. The internal 2° inclination is for Squeeze to seal.

The slot holes 12 arrayed around the edge of the disc of the lower body 6 of the clamp are in a V-shaped groove structure.

The number of the slots 12 is 18 or more, and they are evenly distributed on the axially outer surface of the disc 16 .

The ultrasonic vibration tool head 8 is connected to the tool head connector 7 through threads, and the upper end of the protruding cylinder of the lower body 6 of the clamp is pushed against the inner hole of the tool head connector 7, and the inclination of the tool head connector 7 is greater than that of the ultrasonic vibration The inclination of the inner hole at the lower end of the tool head 8, and two or more slits are evenly distributed in the inner hole part of the tool head connector 7 to withstand deformation during clamping. Therefore, along with the tool head connector 7 thread Screw in the ultrasonic vibration tool head, the inclined surface of the tool head connector 7 is squeezed by the inclined surface of the ultrasonic vibration tool head 8, under this action, the lower body 6 of the clamp is extended out of the cylinder to clamp, and the connection between the ultrasonic vibration tool head 8 and the clamp is realized.

Beneficial effects of the present invention:

The invention has the advantages of convenient clamping and high efficiency, and can process more than 18 inner walls of slender rods at one time.

The present invention uses the tool head connector 7 to complete the connection between the ultrasonic vibration tool head 8 and the fixture, and uses the nut 4 to transmit the extrusion force of the fixture upper body 5 to the washer 9 and the circular sleeve 10 to squeeze the rod to solve the problem of abrasive flow. For the sealing problem in the processing process, the quick assembly and quick disassembly function of multiple rods is completed by using the cooperation of the up and down movement of the nut 4 and the tightness of the clamping parts.

Description of drawings

Fig. 1 is a schematic diagram of the assembly structure of the present invention.

Fig. 2 is a schematic diagram of the clamping of the elongated rod on the lower body in the present invention.

Fig. 3 is a schematic structural view of the discharge joint of the present invention.

In the figure: 1. Clamp bolt; 2. Clamp square internal thread block; 3. Elastic clamp hoop; 4. Nut; 5. Fixture upper body; 6. Fixture lower body; 7. Tool head connector; 8. Ultrasonic vibration tool head; 9. Washer; 10. Circular sleeve; 11. Clamping part spring; 12. Slender rod installation slot (V-shaped groove); 13. Abrasive circulation; 14. Abrasive Flow pipe interface; 15. Discharge joint; 16. Disc body.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1-3.

A quick-installation and quick-disassembly combined fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod, which includes: fixture upper body 5, fixture lower body 6, tool head connector 7 and ultrasonic vibration tool head 8, as shown in Figure 1 As shown, the ultrasonic vibration tool head 8 is connected to the upper end of the lower main body 6 of the clamp through the tool head connector 7, the ultrasonic vibration tool head 8 is connected to the tool head connector 7 through threads, and the extension of the lower main body 6 of the clamp The upper end of the cylinder is placed in the inner hole of the tool head connector 7, the slope of the tool head connector 7 is greater than the inclination of the inner hole at the lower end of the ultrasonic vibration tool head 8, and the inner hole of the tool head connector 7 is evenly distributed with two or more More than two slits are used to withstand the deformation during clamping. Therefore, as the tool head connector 7 is screwed into the ultrasonic vibration tool head, the oblique surface of the tool head connector 7 is squeezed by the oblique surface of the ultrasonic vibration tool head 8. Under the action, the lower body 6 of the clamp is stretched out from the cylinder and clamped, so as to realize the connection between the ultrasonic vibration tool head 8 and the clamp. The upper and lower parts of the upper body 5 of the fixture are both sleeved on the lower body 6 of the fixture, and the nut 4 is screwed on the threaded section of the lower body 6 of the fixture and is located between the upper and lower parts of the upper body 5 of the fixture, so as to control the movement of the upper body 5 of the fixture. Move up and down on the lower main body 6; the lower part of the upper main body 5 of the fixture is provided with an annular abrasive cavity 13, and the elastic clamping hoop 3 is closely attached to the side wall of the lower disc 16 of the lower main body 6 of the fixture. The clamping part bolt 1, the clamping part spring 11 and the clamping part square internal thread block 2 are composed, as shown in Fig. 2 . The annular abrasive chamber 13 is fed through the feed port 14, and a plurality of discharge joints 15 connected with the annular abrasive chamber 13 are arranged on the lower part of the upper body 5 of the fixture; a circular sleeve 10 and a circular sleeve 10 are installed in the discharge joint 15. Gasket 9, as shown in Figure 3, the circular sleeve 10 and gasket 9 are preferably made of rubber materials, and the gasket 9 is close to the upper wall of the discharge joint 15, and the circular sleeve 10 is located under it. The lower end of the clamp lower body 6 passes through the disc body 16 of the clamp upper body 5 and the elastic clamping hoop 3 is installed, and the slender rod to be processed passes through the slender rod between the disc body 16 and the elastic clamping hoop 3 Insert the slotted hole 12 (in a V-shaped groove structure) into the feed inlet 14. The side wall at the bottom end of the discharge joint 15 is inclined at 15° and protrudes inward, which is used to prevent the circular sleeve 10 from slipping out and prevent the rod from interfering with the side wall. The bottom end of the circular sleeve 10 and the interior are inclined at an angle of 2°. The 15° inclination at the bottom end can stop the circular sleeve 10 in the discharge joint 15 and prevent interference with the bar. The 2° inclination inside is for Squeeze to seal. The number of the slotted holes 12 is the same as the number of the outlet joints, which is 18 in this embodiment, and the number can be adjusted according to actual needs, and they are evenly distributed on the axially outer surface of the disc 16 .

The initial state of the fixture is shown in Figure 1. Put the lower main body 6 of the fixture into the inner hole of the tool head connector 7, and screw the upper end of the tool head connector 7 into the inner thread of the lower end of the ultrasonic vibration tool head 8. Since the ultrasonic vibration tool head 8 The inclination of the bottom hole is smaller than the inclination of the middle end surface of the tool head connector 7. With the thread screwed in, the lower main body 6 of the fixture will be clamped gradually to complete the connection between the fixture and the ultrasonic vibration tool head 8.

The bolt 2 of the clamping part is in the loosened state, and the 18 rods neatly arranged in a circular array are transported upward along the central axis of the device. The upper end pushes to the inclined end of the circular sleeve 10 and stops. Since the square internal thread block 2 of the clamping part is interfered by the main body of the clamping part, there is no need to fix it. Use a wrench to turn the clamping part bolt 1, and the clamping part spring 11 contracts. The elastic clamping hoop 3 clamps a plurality of slender rods in the double-layer V-shaped groove of the lower body 6 of the clamp, thereby achieving the effect of positioning and clamping. Use a wrench to turn the nut 4 to lower the main body 5 of the fixture along the central axis, and the upper end of the slender rod will be squeezed into the circular sleeve 10, and the inclined inner wall of the circular sleeve 10 will be flattened to achieve the effect of side sealing. The main body 5 continues to move downward until the upper end of the slender rod is pressed against the washer 9 and tightened, and the nut 4 is stopped. At this time, the upper end of the rod achieves a sealing effect. The function of the fast mounting of the clamp to the slender rod is completed.

When unloading, first turn the nut 4 in the opposite direction to drive the upper body 5 of the fixture to move upward along the central axis, and the slender rod will be separated from the washer 9 and the circular sleeve 10. When the upper end of the rod does not touch the lower end of the circular sleeve 10 When inclined, stop turning the nut 4, and then use a wrench to reversely turn the bolt 1 of the clamping part until all the rods can fall smoothly, completing the quick release function of multiple rods.

The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.

Claims (9)

1. A quick-installation and quick-disassembly combined fixture for abrasive flow ultrasonic composite removal of burrs on the inner wall of a slender rod, characterized in that it includes: fixture upper body (5), fixture lower body (6), tool head connector (7 ) and the ultrasonic vibration tool head (8), the ultrasonic vibration tool head (8) is connected to the upper end of the lower body (6) of the fixture through the tool head connector (7), and the upper and lower parts of the upper body (5) of the fixture are both set In the fixture lower body (6), the nut (4) is screwed on the threaded section of the fixture lower body (6) and is located between the upper and lower parts of the fixture upper body (5), so as to control the fixture upper body (5) in the fixture The lower body (6) moves up and down; the lower part of the upper body (5) of the fixture is provided with an annular abrasive chamber (13), which is fed through the feed port (14), and the upper body of the fixture ( The lower part of 5) is provided with a circle of multiple discharge joints (15) connected with the annular abrasive chamber (13); the lower end of the clamp lower body (6) passes through the disc body (16) of the clamp upper body (5) ) is installed with an elastic clamping hoop (3), and the slender rod to be processed passes through the installation slot (12) between the disc body (16) and the elastic clamping hoop (3) and then inserted into the feed inlet ( 14) in. 2. The quick-installation and quick-disassembly combination fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod according to claim 1, characterized in that a circular sleeve (10) is installed in the discharge joint (15) ) and gasket (9), and the gasket (9) is close to the upper wall of the discharge joint (15), and the circular sleeve (10) is located under it. 3. The quick-installation and quick-disassembly combination fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod according to claim 1, characterized in that the elastic clamping hoop (3) is closely attached to the lower circle of the lower body 6 of the fixture On the side wall of the disc (16), it is made up of the clamp bolt (1), the clamp spring (11) and the clamp square internal thread block (2). 4. The quick-installation and quick-disassembly combination fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod according to claim 1, characterized in that the circular sleeve (10) and gasket (9) are made of rubber materials products. 5. The quick-installation and quick-disassembly combination fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod according to claim 1, characterized in that: the bottom side wall of the discharge joint (15) has a 15° inclination And protruding inwards, it is used to prevent the circular sleeve (10) from slipping out and prevent the rod from interfering with the side wall. 6. The quick-installation and quick-disassembly combination fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod according to claim 5, characterized in that: the bottom end of the circular sleeve (10) and the inside have an angle of 2° Inclination, 15° inclination at the bottom can stop the circular sleeve (10) in the outlet joint (15) and prevent interference with the rod, and the 2° inclination inside is for extrusion and compression sealing. 7. The quick-installation and quick-disassembly combination fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod according to claim 1, characterized in that: the lower body (6) of the fixture has a circle of slots on the edge of the disk (12) It has a V-shaped groove structure. 8. The quick-installation and quick-disassembly combined fixture for abrasive flow ultrasonic composite removal of burrs on the inner wall of a slender rod according to claim 1, characterized in that the number of slots (12) is 18 or more, and they are evenly distributed in the circle on the axially outer surface of the disc (16). 9. The quick-installation and quick-disassembly combined fixture for abrasive flow ultrasonic compound removal of burrs on the inner wall of a slender rod according to claim 1, characterized in that the ultrasonic vibrating tool head (8) is threaded with the tool head connector ( 7) Connection, the upper end of the protruding cylinder of the lower body of the fixture (6) is pushed against the inner hole of the tool head connector (7), and the slope of the tool head connector (7) is larger than the inner hole at the lower end of the ultrasonic vibration tool head ()8 The inclination of the tool head connector (7) has two or more slits evenly distributed in the inner hole to withstand the deformation during clamping. Therefore, as the tool head connector (7) is screwed into Ultrasonic vibration tool head, the inclined surface of the tool head connector (7) is squeezed by the inclined surface of the ultrasonic vibration tool head (8), under this action the lower body (6) of the clamp is extended out of the cylinder to clamp, and the ultrasonic vibration tool head (8) is realized and fixture connections.