CN116117431A - Deep hole root fillet rolling device - Google Patents

Abstract

The invention discloses a deep hole root fillet rolling device, which belongs to the field of machining equipment, and comprises: the rolling tool body is assembled on a boring bar main shaft of the deep hole machine tool; the rolling head pistons are respectively inserted into two sides of one end of the rolling tool body, and one end of each rolling head piston extends out of the interior of the rolling tool body; the R round angle roller is rotationally connected to one end of the rolling head piston extending out of the rolling tool body; the compression spring is sleeved at the position outside the rolling head piston and positioned in the rolling tool body; the hydraulic oil holes are formed in the rolling tool body, load during rolling can be borne through the hydraulic system, potential damage of the machine tool due to impact during chamfering is reduced, and chamfering accuracy of the fillet rolling device during chamfering of the root of the deep hole is improved.

Description

A deep hole root fillet rolling device

technical field

The invention relates to the field of mechanical processing equipment, in particular to a deep hole root fillet rolling device.

Background technique

When the machining equipment is processing the workpiece, it is often necessary to open a round hole on the workpiece. After drilling the round hole, the edge of the round hole is chamfered by a CNC chamfering machine to remove burrs or burrs. The root of the deep hole is prone to steps. The existing CNC chamfering machine is inconvenient to go deep into the deep hole for chamfering. The existing deep hole often drives the boring bar through the CNC machine tool to mill the uneven part of the root of the deep hole;

It is found through patent retrieval that the Chinese patent with publication number CN109290602A discloses a numerically controlled slide rail side hole chamfering machine, which includes a base, a fixing mechanism, a positioning device, a chamfering mechanism and a PLC controller, the fixing mechanism and the base The seat is fixedly connected and used to fix the slide rail. The positioning device is arranged adjacent to the fixing mechanism and fixed on the base. The chamfering mechanism is horizontally arranged on the positioning device and is used for chamfering the slide rail; The mechanism is electrically connected with the PLC controller and controlled by it. The chamfering mechanism includes a drill carrier plate, a locking piece, a drill motor and a drill bit. The assembly is threadedly connected with the drill carrier plate and used to fix the drill motor and the drill bit, the drill motor is electrically connected to the PLC controller; the drill bit carrier plate is fixedly connected with the positioning device, although it controls the horizontal motor and the vertical motor to drive separately, it moves through the positioning device, Quickly locate the chamfering mechanism to the position of the side hole of the slide rail to be chamfered, the PLC controller controls the drill bit motor to drive the drill bit to rotate, the drill bit motor is locked on the positioning device by the drill bit carrier plate and the locking piece, and the drill bit can drill into the workpiece , thus realizing automatic chamfering;

However, it does not solve the problem that the existing chamfering machine locks the drill motor and the drill bit on the machine tool through the drill carrier plate and the locking piece, and the positioning device drives the drill bit carrier plate to move, and the drill bit motor drives The drill bit rotates to chamfer the root of the deep hole of the workpiece, and the drill bit bears a large load and transmits it to the positioning device of the machine tool. It is inconvenient to remove the load when the machine tool is chamfering. Potential damage causes the chamfering machine to reduce the chamfering accuracy due to internal potential damage when chamfering the deep hole root. Therefore, we propose a deep hole root fillet rolling device.

Contents of the invention

1. Technical problems to be solved

In view of the problems existing in the prior art, the object of the present invention is to provide a deep hole root fillet rolling device, which can realize the load during rolling processing through the hydraulic system, and reduce the impact on the inside of the machine tool due to chamfering To improve the chamfering accuracy of the fillet rolling device when chamfering the root of the deep hole.

2. Technical solution

In order to solve the above problems, the present invention adopts the following technical solutions.

A deep hole root fillet rolling device, comprising:

A rolling tool body, the rolling tool body is assembled on the boring bar spindle of the deep hole machine tool;

Rolling head pistons, the two rolling head pistons are respectively plugged on both sides of one end of the rolling tool body, and one end of the rolling head piston extends out of the rolling tool body;

R rounded roller, the R rounded roller is rotatably connected to one end of the rolling head piston extending out of the rolling tool body;

A compression spring, the compression spring is sleeved on the outside of the rolling head piston and located inside the rolling tool body;

Hydraulic oil holes, the two hydraulic oil holes are opened inside the rolling tool body, used to push the rolling head piston, the interior of the hydraulic oil holes is provided with a synchronization mechanism, and the hydraulic oil holes are far away from the rolling head piston One end is provided with a hydraulic system.

Further, a support ring is sleeved on the outside of the rolling head piston, and a plurality of hexagon socket head cap screws are threaded on one side of the support ring.

Further, the end of the rolling tool body away from the rolling head piston is welded with a connecting shaft, and a rolling pin is installed for rotation between the outer side of the R fillet roller and one end of the rolling head piston.

Further, the rolling head piston is provided with an inner convex hole that is sleeved with one end of the rolling head piston, and one end of the hexagon socket head screw is threaded to the inner side of the inner convex hole, and the rolling head One end of the piston located inside the body of the rolling tool is sleeved with two retaining rings, and a sealing ring is arranged between the two retaining rings.

Further, the hydraulic system includes:

A hydraulic oil channel, the hydraulic oil channel is opened in the middle of one end of the rolling tool body, and runs through the connecting shaft, one end of the hydraulic oil hole communicates with one end of the hydraulic oil channel, and the other end communicates with one end of the inner convex hole;

A swivel joint, the swivel joint is rotatably installed at the end of the hydraulic oil channel away from the body of the rolling tool;

An oil delivery hose, the oil outlet end of the oil delivery hose is fixedly connected to the lower end of the rotary joint;

An external hydraulic oil pump, the output end of the external hydraulic oil pump is fixedly connected to the oil inlet end of the oil delivery hose, and the oil inlet end of the external hydraulic oil pump is connected to a hydraulic oil source.

Further, the synchronization mechanism includes:

A steel wire, the steel wire is plugged into the hydraulic oil hole, one end of the steel wire extends into the inner convex hole and is fixedly connected to one end of the rolling head piston, and the other end extends into the hydraulic oil channel;

a sliding cylinder, the sliding cylinder is slidably installed inside the connecting shaft, and the inner wall of the sliding cylinder is welded to one end of the steel wire extending into the hydraulic oil channel;

A synchronous spring, one end of the synchronous spring is welded to the end of the sliding cylinder close to the body of the rolling tool, and the other end is welded to the inner wall of the hydraulic oil channel.

Further, the inside of the connecting shaft is provided with a chute communicating with the hydraulic oil passage, the inner wall of the chute is slidably connected to the outer side of the sliding cylinder, and two guide rollers are installed inside the rolling head piston for rotation, The outer sides of the two guide rollers are all provided with wire-releasing grooves, and the wire-releasing grooves are used for guiding steel wires.

Further, the heat dissipation mechanism includes:

Thin tubes, a plurality of thin tubes are distributed on the outside of the connecting shaft along a circumferential array, and the air outlet ends of the thin tubes face the R fillet roller;

a guard ring welded to the exterior of the plurality of narrow tubes;

A fan, one side of the fan is fixedly connected to the side of the rotary joint away from the connecting shaft, and the inlet end of the thin tube faces the fan.

Further, a wind collecting hood is installed on the outer thread of the connecting shaft, and a plurality of air outlets are distributed along a circumferential array on one side of the air collecting hood, and one end of the air outlets is fixedly connected to the air inlet end of the thin tube.

Further, an atomizing nozzle is fixedly installed on the upper end of the fan, and a cutting oil pipe is fixedly installed at the liquid inlet of the atomizing nozzle, and a cutting oil pump is fixedly installed on the end of the cutting oil pipe far away from the atomizing nozzle, and the cutting oil pump A cutting oil tank is fixedly installed at one end.

3. Beneficial effect

Compared with the prior art, the present invention has the advantages of:

(1) When the present invention works, the workpiece is clamped on the deep-hole machine tool, the boring bar spindle of the deep-hole machine tool drives the rolling tool body to rotate, and extends into the deep hole of the workpiece, and then pushes the rolling tool through the hydraulic system The head piston protrudes from the inside of the rolling tool body, and the pumping volume of the hydraulic oil can be controlled to adjust the protruding length of the piston of the jacking rolling head, so that the R rounded roller at one end of the piston of the rolling head sticks to the root of the deep hole. With the rotation of the rolling tool body, the rolling process is performed to increase the surface stress at the root of the deep hole and improve the durability of the product. The R fillet at the root of the deep hole can be rolled with the help of an external hydraulic power source, and the rolling process can be carried out through the hydraulic system It is convenient to unload the load during the chamfering of the machine tool, reduce the potential damage caused by the impact on the inside of the machine tool during chamfering, and improve the chamfering accuracy of the fillet rolling device when chamfering the root of the deep hole.

(2) When the rolling head piston of the present invention moves, the two rolling head pistons all pull the steel wire, and the pulling slider slides inside the connecting shaft, extruding the synchronous spring, and supporting the sliding cylinder through the synchronous spring, so that the sliding cylinder applies the same The reaction of the steel wire is given to the steel wire to balance the traction on the steel wire. The two steel wires move synchronously, so that the pistons of the two rolling heads are extended by the same length, which is beneficial to the R fillet rollers on the pistons of the two rolling heads to roll evenly. Hole root.

(3) When the present invention works, the air is agitated by the fan, and the airflow is delivered to the thin tube, and the air outlet end of the thin tube blows air to the inside of the deep hole, taking away the heat at the contact point between the fillet rolling device and the deep hole, and discharging it into the air , which is convenient for the fillet rolling device to dissipate heat when rolling the root of the deep hole, reducing the aging deformation of the fillet rolling device caused by friction and heat, and inserting the protective ring into the main shaft of the boring bar to protect the thin tube and avoid the extrusion of the main shaft of the boring bar Squeeze the thin tube.

Description of drawings

Fig. 1 is the structural representation of the front view of the present invention;

Fig. 2 is the structural representation of the side view of the present invention;

Fig. 3 is the structural representation of the cross section of the present invention;

Fig. 4 is a side view structural schematic diagram of the rolling tool body of the present invention;

Fig. 5 is a schematic diagram of the enlarged structure at A in Fig. 2 of the present invention;

Fig. 6 is a schematic diagram of an enlarged structure at B in Fig. 3 of the present invention;

FIG. 7 is a schematic diagram of an enlarged structure at C in FIG. 3 of the present invention;

FIG. 8 is a schematic diagram of an enlarged structure at D in FIG. 3 of the present invention.

Explanation of symbols in the figure:

1. Rolling tool body; 2. Rolling head piston; 3. R fillet roller; 4. Compression spring; 5. Hydraulic oil hole; 6. Hexagon socket head screw; 7. Connecting shaft; 8. Rolling pin shaft; 9, inner convex hole; 10, retaining ring; 11, sealing ring; 12, hydraulic oil channel; 13, rotary joint; 14, oil delivery hose; 15, external hydraulic oil pump; 16, steel wire; 17, slide barrel; 18, synchronous spring; 19, chute; 20, guide roller; 21, wire release trough; 22, thin tube; 23, protective ring; 24, fan; 25, wind collecting hood; 26, air outlet nozzle; 27, Atomizing nozzle; 28. Cutting oil pipe; 29. Cutting oil pump; 30. Cutting oil tank; 31. Support ring.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only part of the embodiments of the present invention, not all embodiments, based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example:

Please refer to Figure 1-8, a deep hole root fillet rolling device, including:

Rolling tool body 1, the rolling tool body 1 is assembled on the boring bar spindle of the deep hole machine tool;

Rolling head piston 2, the two rolling head pistons 2 are respectively inserted on both sides of one end of the rolling tool body 1, and one end of the rolling head piston 2 extends out of the rolling tool body 1;

R rounded corner roller 3, R rounded corner roller 3 is rotatably connected to the end of the rolling head piston 2 extending out of the rolling tool body 1, R rounded corner roller 3 is made of alloy steel, hardened, and the extrusion workpiece can be kept well the rigidity;

Compression spring 4, the compression spring 4 is sleeved on the outside of the rolling head piston 2 at the position inside the rolling tool body 1;

Hydraulic oil hole 5, two hydraulic oil holes 5 are opened inside the rolling tool body 1, used to push the rolling head piston 2, the inside of the hydraulic oil hole 5 is provided with a synchronization mechanism, the hydraulic oil hole 5 is far away from the rolling head piston One end of 2 is provided with hydraulic system.

When the present invention works, the workpiece is clamped on the deep hole machine tool, the deep hole on the workpiece is horizontally facing the rolling tool body 1, and the rolling tool body 1 is driven to rotate by the boring bar spindle of the deep hole machine tool, and extends into the workpiece Inside the deep hole, hydraulic oil is pumped into the hydraulic oil hole 5 through the hydraulic system, and the hydraulic oil flows into the rolling tool body 1, pushing the rolling head piston 2 out of the rolling tool body 1, and the rolling head piston 2 Squeeze the compression spring 4 and control the pumping volume of the hydraulic oil to adjust the protruding length of the piston 2 of the jacking rolling head, so that the R rounded roller 3 at one end of the piston 2 of the rolling head sticks to the root of the deep hole, The rolling tool body 1 rotates for rolling processing to increase the surface stress at the root of the deep hole and improve the durability of the product. The R fillet at the root of the deep hole can be rolled with the help of an external hydraulic power source, and the rolling process can be carried out through the hydraulic system It is convenient to unload the load when chamfering the machine tool, reduce the potential damage caused by the impact on the inside of the machine tool when chamfering, and improve the chamfering accuracy of the fillet rolling device when chamfering the root of the deep hole. On the contrary, The hydraulic system reversely extracts the hydraulic oil in the hydraulic oil hole 5, reduces the hydraulic pump energy of the rolling head piston 2, and under the action of the compression spring 4, pushes the rolling head piston 2 back to the inside of the rolling tool body 1, so that R fillet roller 3 breaks away from the root of the deep hole, making it easier for the main shaft of the boring bar to leave the deep hole.

Referring to Fig. 3 and Fig. 6, the outer side of the rolling head piston 2 is also sleeved with a support ring 31, and one side of the support ring 31 is threaded with a plurality of hexagon socket cap screws 6, and the support ring is connected by the hex socket cap screws 6. 31 is fixed on the rolling tool body 1, so that the support ring 31 supports the rolling head piston 2 from the side, and can hold the rolling head piston 2.

Referring to Figure 1 and Figure 6, the end of the rolling tool body 1 away from the rolling head piston 2 is welded with a connecting shaft 7, and one end of the connecting shaft 7 runs through the boring bar spindle connected to the deep hole machine tool, which facilitates the hydraulic system to stagger the position of the deep hole machine tool. The main shaft of the boring bar, the outer side of the R fillet roller 3 and one end of the rolling head piston 2 are installed with a rolling pin shaft 8 that runs through and rotates, and the two ends of the rolling pin shaft 8 are respectively connected to the rolling head piston 2 through bearings. One end of the rolling pin shaft 8, the outer side of the rolling pin shaft 8 is connected to the outer side of the R fillet roller 3 through the bearing penetrating and rotating, when the rolling tool body 1 is installed, one end of the connecting shaft 7 is connected through the boring bar main shaft of the deep hole machine tool, And locked, it is convenient for the boring bar spindle of the deep-hole machine tool to drive the connecting shaft 7 and the rolling tool body 1 to rotate, and at the same time, the R rounded roller 3 is supported by the rolling pin 8, so that the R rounded roller 3 surrounds the rolling pin 8 rotations to facilitate the relief of the friction between the R fillet roller 3 and the root of the deep hole.

Referring to Figure 1 and Figure 6, the rolling head piston 2 is provided with an inner convex hole 9 which is sleeved with one end of the rolling head piston 2, and one end of the hexagon socket head screw 6 is threaded inside the inner convex hole 9, One end of the rolling head piston 2 located inside the rolling tool body 1 is embedded with two retaining rings 10. The structure of the retaining rings 10 is "C" shape, which is convenient to open and close under the action of external force. The gap between the two retaining rings 10 is A sealing ring 11 is provided, and when the rolling head piston 2 moves, the sealing ring 11 is supported from both sides by two retaining rings 10, and the sealing ring 11 can block the gap between the rolling head piston 2 and the inner convex hole 9 , to block the hydraulic oil pumped by the hydraulic system to the inner convex hole 9, so that the hydraulic oil can push the end of the rolling head piston 2 located inside the inner convex hole 9.

Referring to Figure 1, Figure 3 and Figure 8, the hydraulic system includes:

Hydraulic oil channel 12, the hydraulic oil channel 12 is opened in the middle of one end of the rolling tool body 1, and runs through the connecting shaft 7, one end of the hydraulic oil hole 5 communicates with one end of the hydraulic oil channel 12, and the other end communicates with the inner convex hole 9. Connected at one end;

A swivel joint 13, the swivel joint 13 is rotatably installed on the end of the hydraulic oil channel 12 away from the rolling tool body 1;

The oil delivery hose 14, the oil outlet end of the oil delivery hose 14 is fixedly connected to the lower end of the rotary joint 13, and the oil delivery hose 14 is equipped with an electronic flow meter. This technical solution is a prior art, not shown in the figure;

Outer hydraulic oil pump 15, the output end of the outer hydraulic oil pump 15 is fixedly connected to the oil inlet end of the oil delivery hose 14, the oil inlet end of the outer hydraulic oil pump 15 is connected to a hydraulic oil source, and the outer hydraulic oil pump 15 is electrically connected to an external controller.

When the present invention works, the external hydraulic oil source is extracted by the external hydraulic oil pump 15, pumped into the rotary joint 13 along the oil delivery hose 14, the rotary joint 13 rotates relative to the connecting shaft 7, and the hydraulic oil is sent into the hydraulic oil channel 12 at the same time, for The rolling head piston 2 provides power.

Referring to Figure 3 and Figure 7, the synchronization mechanism includes:

Steel wire 16, the steel wire 16 is plugged inside the hydraulic oil hole 5, one end of the steel wire 16 extends into the inner convex hole 9 and is fixedly connected to one end of the rolling head piston 2, and the other end extends into the hydraulic oil channel 12;

Sliding cylinder 17, the sliding cylinder 17 is slidably installed inside the connecting shaft 7, and the inner wall of the sliding cylinder 17 is welded to one end of the steel wire 16 extending into the hydraulic oil channel 12;

A synchronous spring 18 , one end of the synchronous spring 18 is welded to the end of the sliding cylinder 17 close to the rolling tool body 1 , and the other end is welded to the inner wall of the hydraulic oil channel 12 .

When the rolling head piston 2 of the present invention moves, the two rolling head pistons 2 all pull the steel wire 16, and the pulling slide cylinder 17 slides inside the connecting shaft 7 to squeeze the synchronous spring 18, and the sliding cylinder 17 is supported by the synchronous spring 18, Make the sliding cylinder 17 apply the same reaction to the steel wire 16 to balance the traction on the steel wire 16, and the two steel wires 16 move synchronously, so that the two rolling head pistons 2 extend the same length, which is beneficial to the two rolling head pistons The R fillet roller 3 on the 2 evenly rolls the root of the deep hole.

Referring to Fig. 3 and Fig. 6, there is a chute 19 connected to the hydraulic oil channel 12 inside the connecting shaft 7, the inner wall of the chute 19 is slidably connected to the outer side of the sliding cylinder 17, and the inside of the rolling head piston 2 is rotatably installed with two A guide roller 20, the outer sides of the two guide rollers 20 are all provided with a wire release groove 21, the wire release groove 21 is used to guide the steel wire 16, and when the synchronous mechanism is working, two steel wires 16 are inserted respectively through the two wire release grooves 21 , the two steel wires 16 are respectively supported by two guide rollers 20 so as to be separated from each other and move independently, and it is also beneficial for the steel wires 16 to be suspended in the hydraulic oil hole 5 and the hydraulic oil channel 12 to reduce friction.

Referring to Figure 1 and Figure 5, the cooling mechanism includes:

Thin tubes 22, a plurality of thin tubes 22 are distributed on the outside of the connecting shaft 7 along a circumferential array, and the air outlet ends of the thin tubes 22 are facing the R fillet roller 3;

The protection ring 23, the protection ring 23 is welded on the outside of the plurality of thin tubes 22, made of alloy steel, hardened, capable of supporting the thin tubes 22;

A fan 24 , one side of the fan 24 is fixedly connected to the side of the rotary joint 13 away from the connecting shaft 7 , and the inlet end of the thin tube 22 faces the fan 24 .

When the present invention works, the air is agitated by the fan 24, and the air flow is delivered to the thin tube 22, and the air outlet end of the thin tube 22 blows air into the deep hole, taking away the heat at the contact point between the fillet rolling device and the deep hole, and discharging it into the air , it is convenient for the fillet rolling device to dissipate heat when rolling the root of the deep hole, reduce the fillet rolling device caused by friction and heat due to aging deformation, and use the protective ring 23 to embed the main shaft of the boring bar, which can protect the thin tube 22 and avoid the boring bar The spindle squeezes the thin tube 22 .

Referring to Fig. 1, Fig. 2 and Fig. 5, the outer thread of the connecting shaft 7 is equipped with an air collecting hood 25, and one side of the air collecting hood 25 is distributed with a plurality of air outlet nozzles 26 in a circumferential array, and one end of the air outlet nozzle 26 is fixedly connected by a joint At the inlet end of the thin tube 22, the other end of the air outlet nozzle 26 is welded to one side of the wind collecting hood 25, the air agitated by the fan 24 is collected by the wind collecting hood 25, and delivered to the thin pipe 22 along the air outlet 26, which can increase the The wind-receiving area of the narrow tube 22 is convenient for more airflows to gather inside the thin tube 22 .

Referring to Fig. 3 and Fig. 5, an atomizing nozzle 27 is fixedly installed on the upper end of the fan 24, a cutting oil pipe 28 is fixedly installed on the liquid inlet of the atomizing nozzle 27, and a cutting oil pump 29 is fixedly installed on the end of the cutting oil pipe 28 away from the atomizing nozzle 27 , one end of the cutting oil pump 29 is fixedly equipped with a cutting oil tank 30. When the present invention works, the cutting oil in the cutting oil tank 30 is extracted by the cutting oil pump 29 when the heat dissipation mechanism is working, and is intermittently pumped along the cutting oil pipe 28 for atomization. The spray nozzle 27 and the atomizing nozzle 27 spray mist cutting oil into the wind collecting hood 25 according to the specified frequency, and send the mist cutting oil into the deep hole through the air flow, and reach the rolling point for lubrication, which is convenient to reduce the fillet rolling. The friction between the device and the distribution of deep holes, and the amount of cutting oil is small and evenly distributed.

Working principle: when the present invention works, the workpiece is clamped on the deep hole machine tool, the deep hole on the workpiece is horizontally facing the rolling tool body 1, and the rolling tool body 1 is driven to rotate by the boring bar spindle of the deep hole machine tool, and stretched into the deep hole of the workpiece, and then pump hydraulic oil into the hydraulic oil hole 5 through the hydraulic system, the hydraulic oil flows into the rolling tool body 1, and the pushing rolling head piston 2 extends out of the rolling tool body 1, rolling The head piston 2 squeezes the compression spring 4 and controls the pumping volume of the hydraulic oil to adjust the protruding length of the rolling head piston 2 so that the R rounded roller 3 at one end of the rolling head piston 2 sticks to the deep hole The root part rotates with the rolling tool body 1 to carry out rolling processing to increase the surface stress of the root part of the deep hole and improve the durability of the product. The R fillet of the root part of the deep hole can be rolled with the help of an external hydraulic power source, and the hydraulic system can bear The load during rolling processing is convenient for the machine tool to remove the load when chamfering, reducing the potential damage caused by the impact of the inside of the machine tool during chamfering, so as to improve the chamfering accuracy of the fillet rolling device when chamfering at the root of the deep hole .

When the rolling head piston 2 of the present invention moves, the two rolling head pistons 2 all pull the steel wire 16, and the pulling slide cylinder 17 slides inside the connecting shaft 7 to squeeze the synchronous spring 18, and the sliding cylinder 17 is supported by the synchronous spring 18, Make the sliding cylinder 17 apply the same reaction to the steel wire 16 to balance the traction on the steel wire 16, and the two steel wires 16 move synchronously, so that the two rolling head pistons 2 extend the same length, which is beneficial to the two rolling head pistons The R fillet roller 3 on the 2 evenly rolls the root of the deep hole.

When the present invention works, the air is agitated by the fan 24, and the air flow is delivered to the thin tube 22, and the air outlet end of the thin tube 22 blows air into the deep hole, taking away the heat at the contact point between the fillet rolling device and the deep hole, and discharging it into the air , it is convenient for the fillet rolling device to dissipate heat when rolling the root of the deep hole, reduce the fillet rolling device caused by friction and heat due to aging deformation, and use the protective ring 23 to embed the main shaft of the boring bar, which can protect the thin tube 22 and avoid the boring bar The spindle squeezes the thin tube 22 .

The above description is only a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention and its improved concept to make equivalent replacements or changes shall fall within the scope of protection of the present invention.

Claims (10)

1. A deep hole root fillet rolling device, characterized in that it comprises: A rolling tool body (1), the rolling tool body (1) is assembled on the boring bar main shaft of the deep hole machine tool; Rolling head piston (2), the two rolling head pistons (2) are respectively inserted on both sides of one end of the rolling tool body (1), and one end of the rolling head piston (2) extends out of the rolling Inside the tool body (1); R fillet roller (3), the R fillet roller (3) is rotatably connected to the end of the rolling head piston (2) extending out of the rolling tool body (1); A compression spring (4), where the compression spring (4) is sleeved on the outside of the rolling head piston (2) at a position inside the rolling tool body (1); Hydraulic oil holes (5), the two hydraulic oil holes (5) are opened inside the rolling tool body (1), used to push the rolling head piston (2), the inside of the hydraulic oil holes (5) A synchronous mechanism is provided, and a hydraulic system is provided at the end of the hydraulic oil hole (5) away from the rolling head piston (2). 2. A deep hole root fillet rolling device according to claim 1, characterized in that: a support ring (31) is sleeved on the outside of the rolling head piston (2), and the support ring ( 31) a plurality of hexagon socket cap screws (6) are installed on one side thread. 3. A deep hole root fillet rolling device according to claim 2, characterized in that: the end of the rolling tool body (1) away from the rolling head piston (2) is welded with a connecting shaft (7) , between the outer side of the R fillet roller (3) and one end of the rolling head piston (2), a rolling pin (8) is installed for rotation. 4. A deep hole root fillet rolling device according to claim 3, characterized in that: the rolling head piston (2) is provided with an inner convex socket that is socketed with one end of the rolling head piston (2) shaped hole (9), one end of the hexagon socket cap screw (6) is threaded on the inner side of the inner convex hole (9), and the rolling head piston (2) is located inside the rolling tool body (1) One end is sleeved with two retaining rings (10), and a sealing ring (11) is arranged between the two retaining rings (10). 5. A deep hole root fillet rolling device according to claim 4, characterized in that: the hydraulic system includes: A hydraulic oil channel (12), the hydraulic oil channel (12) is opened in the middle of one end of the rolling tool body (1), and runs through the connecting shaft (7), one end of the hydraulic oil hole (5) and the hydraulic oil channel One end of (12) communicates, and the other end communicates with an end of the inner convex hole (9); A swivel joint (13), the swivel joint (13) is rotatably installed at the end of the hydraulic oil channel (12) away from the rolling tool body (1); An oil delivery hose (14), the oil outlet end of the oil delivery hose (14) is fixedly connected to the lower end of the rotary joint (13); An external hydraulic oil pump (15), the output end of the external hydraulic oil pump (15) is fixedly connected to the oil inlet end of the oil delivery hose (14), and the oil inlet end of the external hydraulic oil pump (15) is connected to a hydraulic oil source. 6. A deep hole root fillet rolling device according to claim 5, characterized in that: the synchronization mechanism comprises: A steel wire (16), the steel wire (16) is plugged into the hydraulic oil hole (5), and one end of the steel wire (16) extends into the inner convex hole (9) and is fixedly connected to the rolling head piston ( 2) one end, and the other end extends into the inside of the hydraulic oil channel (12); Sliding cylinder (17), the sliding cylinder (17) is installed inside the connecting shaft (7), and the inner wall of the sliding cylinder (17) is welded to one end of the steel wire (16) extending into the hydraulic oil channel (12) ; A synchronous spring (18), one end of the synchronous spring (18) is welded to the end of the sliding cylinder (17) close to the rolling tool body (1), and the other end is welded to the inner wall of the hydraulic oil channel (12). 7. A deep hole root fillet rolling device according to claim 6, characterized in that: the inside of the connecting shaft (7) is provided with a chute (19) communicating with the hydraulic oil passage (12), The inner wall of the chute (19) is slidably connected to the outside of the sliding cylinder (17), and the inner rotation of the rolling head piston (2) is equipped with two guide rollers (20), and the two guide rollers (20 ) are provided with a wire release groove (21) on the outside, and the wire release groove (21) is used to guide the steel wire (16). 8. A deep hole root fillet rolling device according to claim 5, characterized in that: the heat dissipation mechanism comprises: Thin tubes (22), a plurality of thin tubes (22) are distributed on the outside of the connecting shaft (7) along a circumferential array, and the gas outlet ends of the thin tubes (22) face the R fillet roller (3); A protective ring (23), the protective ring (23) is welded on the outside of a plurality of thin tubes (22); A fan (24), one side of the fan (24) is fixedly connected to the side of the rotary joint (13) away from the connecting shaft (7), and the inlet end of the thin tube (22) faces the fan (24). 9. A deep hole root fillet rolling device according to claim 8, characterized in that: the outer thread of the connecting shaft (7) is equipped with a wind collecting cover (25), and the wind collecting cover (25 ) is distributed with a plurality of air outlet nozzles (26) along the circumferential array, and one end of the air outlet nozzles (26) is fixedly connected to the air inlet end of the capillary (22). 10. A deep hole root fillet rolling device according to claim 8, characterized in that: the upper end of the fan (24) is fixedly equipped with an atomizing nozzle (27), and the atomizing nozzle (27) A cutting oil pipe (28) is fixedly installed at the liquid inlet of the cutting oil pipe (28), and a cutting oil pump (29) is fixedly installed at one end of the cutting oil pipe (28) away from the atomizing nozzle (27), and a cutting oil pump (29) is fixedly installed at one end of the cutting oil pump (29). Cutting oil tank (30).

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