CN212063793U

CN212063793U - Automatic tight machine that expands of impacted style copper rotor conducting bar

Info

Publication number: CN212063793U
Application number: CN202020626646.1U
Authority: CN
Inventors: 谭新春; 周栋; 陈奇志; 肖晟; 刘悦音
Original assignee: Changsha Meitong Automation Equipment Co ltd
Current assignee: Changsha Meitong Automation Equipment Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-12-01
Anticipated expiration: 2030-04-23

Abstract

The utility model discloses an impact type copper rotor conducting bar automatic expansion machine, which comprises a workpiece positioning device, a cutter moving device, a cutter mounting device and a cutter motion control system; the cutter moving device comprises a transverse moving device and a lifting device, and the lifting device is arranged on the transverse moving device; the cutter mounting device comprises a cutter mounting frame and a cutter box, the cutter mounting frame is mounted on the lifting device, the cutter box is mounted on the cutter mounting frame, and a cutter is mounted in the cutter box; the cutter motion control system comprises a cutter motion driving device, a detection device and a control system; the detection device comprises a workpiece position detection device, a workpiece groove position detection device, a cutter position detection device and a cutter breaking detection device; the control system comprises a control host, an input device and a display device; the transverse moving device, the lifting device and the like are electrically connected with the control host. The utility model discloses degree of automation is high, and can guarantee that the tight degree of expanding of each conducting bar is even unanimous.

Description

Automatic tight machine that expands of impacted style copper rotor conducting bar

Technical Field

The utility model belongs to the technical field of electric motor rotor, concretely relates to automatic tight machine that expands of impacted style copper rotor conducting bar.

Background

Copper conducting bars of the squirrel-cage rotor of the alternating current motor need to be tightly fixed in a rotor core slot in an expanding mode so as to prevent the copper conducting bars from generating axial displacement in the manufacturing process of the rotor and the running process of the motor. The iron core grooves are generally axially arranged on the circumferential side face of the rotor, the conducting bars are distributed in the iron core grooves, the number of the conducting bars is large, and the expansion workload is large.

The existing conducting bar expansion methods mainly comprise two methods, namely handheld pneumatic impact expansion and equipment inching impact expansion. The hand-held pneumatic type is characterized in that a manual hand-held pneumatic impact gun is used for assembling a punch, full-length impact is carried out on a rotor conducting bar, after one conducting bar is expanded, the rotor is manually rotated, the next conducting bar is operated, and the expansion range and the expansion pressure of the rotor are manually controlled. However, the manual impact expansion by the pneumatic punch has high labor intensity, unstable expansion depth of the guide bar and uneven quality. And through the mode that equipment point moves the impact and expands tightly, when carrying out narrow groove mouth conducting bar and expand tightly, easily produce the drift and crack the phenomenon, have the person, product potential safety hazard to when carrying out the point and move the impact to the conducting bar, lead to the deformation volume of conducting bar inhomogeneous, uncontrollable easily, form the deformation layer of wave undulation form on the conducting bar surface easily simultaneously, the tight effect of bloateing of conducting bar is not good, and the tight degree of bloateing is inhomogeneous.

Therefore, how to improve the expansion efficiency of the motor rotor conducting bars and ensure that the expansion degree of each conducting bar is uniform is a technical problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an automatic tight machine that expands of impacted style copper rotor conducting bar adopts technical scheme as follows:

an impact type copper rotor conducting bar automatic expansion machine comprises a workpiece positioning device, a cutter moving device, a cutter mounting device and a cutter motion control system;

a workpiece positioning device: the driving device comprises a supporting and positioning device and a supporting and positioning device;

the cutter moving device comprises a transverse moving device and a lifting device, and the lifting device is arranged on the transverse moving device;

the cutter mounting device comprises a cutter mounting frame and a cutter box, the cutter mounting frame is mounted on the lifting device, the cutter box is mounted on the cutter mounting frame, and a cutter is mounted in the cutter box;

the cutter motion control system comprises a cutter motion driving device, a detection device and a control system;

the tool motion driving device comprises a swing arm device, a swing arm device driving device, a clamping device, a tool motion driving part and a tool motion driving part guiding device;

the detection device comprises a workpiece position detection device, a workpiece groove position detection device, a cutter position detection device and a cutter breaking detection device;

the control system comprises a control host, an input device and a display device;

the driving device, the transverse moving device, the lifting device, the swing arm device driving device, the cutter movement driving part, the workpiece position detection device, the workpiece groove position detection device, the cutter position detection device, the broken cutter detection device, the input device and the display device of the supporting and positioning device are all electrically connected with the control host.

Preferably, the supporting and positioning device comprises two parallel rollers; the driving device for supporting the positioning device comprises a motor A; the two rollers can be driven by the motor A to rotate in the same direction and at the same speed;

the transverse moving device comprises a lead screw transmission device and a transverse moving base; the lead screw transmission device is arranged on the cabinet body and comprises a screw A and a nut A, and the nut A is fixedly connected with the transverse moving base; the motor B drives the screw A to move;

the lifting device comprises a guide box body, a mounting box body and a lead screw lifting device; the back surface of the guide box body is provided with a sliding chute, the installation box body is provided with a guide rail, and the sliding chute is in sliding connection with the guide rail; the screw rod lifting device comprises a screw rod B, a nut B and a screw rod mounting base; one screw rod mounting base is arranged on the transverse moving base, the other screw rod mounting base is arranged at the top end of the back surface of the guide box body, and the nut B is fixedly arranged on the back surface of the guide box body; the motor C drives the screw B to move;

the cutter mounting device also comprises a frame body supporting frame and a frame body combining piece, wherein the frame body supporting frame is mounted on the cutter mounting frame, and the frame body combining piece is mounted on the frame body supporting frame;

the swing arm device comprises a swing arm connector, the swing arm device driving device comprises an air cylinder and an air cylinder connector, and the clamping device comprises a hoop; the cutter movement driving part comprises an air hammer and a hammer rod, and the cutter movement driving part guiding device comprises a shaft seat; the air cylinder is arranged on the frame body combining piece, and one end of the swing arm combining piece is positioned right below the air cylinder joint; the shaft seat is arranged on the frame body support frame, and a shaft sleeve is arranged in the shaft seat; the frame body combining part is provided with a baffle plate, the baffle plate is provided with an air hammer hole, and the air hammer passes through the air hammer hole and the shaft seat; the hoop is fixedly arranged on the air hammer and is positioned between the baffle and the shaft seat;

the workpiece position detection device is a photoelectric switch A, the workpiece groove position detection device is a photoelectric switch B, the cutter position detection device is a photoelectric switch C, and the broken cutter detection device is a proximity switch;

the motor A, the motor B, the motor C, the cylinder, the air hammer, the photoelectric switch A, the photoelectric switch B, the photoelectric switch C and the proximity switch are all electrically connected with the control host.

Preferably, the swing arm connector comprises a pressure lever, two ends of the pressure lever are connected with connecting rods, one end of each connecting rod is fixedly connected with the pressure lever, the other end of each connecting rod is provided with an arc-shaped groove, a pin shaft is arranged in the middle of each connecting rod through a pin shaft mounting hole, the swing arm connector is arranged on the frame body connector through the pin shaft, and the pressure lever is positioned right below a cylinder joint of the cylinder; circular protruding rods are arranged on the left side and the right side of the anchor ear and are located in the circular arc-shaped grooves.

Preferably, a cover plate is arranged at the top end of the cutter box, a hammer rod hole and a cover plate fixing hole A are formed in the cover plate, a cover plate fixing hole B is formed in the cutter box, and the cover plate is fixed on the cutter box through a cover plate fixing hole A, B by using a bolt; the cutter comprises a cutter handle and a cutter head; the knife handle is provided with a flange; the top end of the knife handle is provided with a hammer rod embedding groove, and the bottom of the knife handle is provided with a knife head mounting hole; the cutter spring is sleeved outside the cutter handle, a supporting step surface and a cutter outlet are formed in the bottom surface of the cutter box, and the cutter spring is located between the flange and the supporting step surface; the novel knife tool is characterized in that a knife guide rod is further installed in the knife tool box, a knife guide rod installation hole A is formed in the cover plate, a knife guide rod installation hole B is formed in the bottom surface of the knife tool box, the knife guide rod penetrates through the knife handle, one end of the knife guide rod is installed in the knife guide rod installation hole A, and the other end of the knife guide rod is installed in the knife guide rod installation hole B.

Preferably, the cutter guide rod is externally provided with a spacer bush A and a spacer bush B, a spacer bush hole is formed in the flange of the cutter handle, the spacer bush A is located above the cutter handle, the diameter of the spacer bush A is larger than that of the spacer bush B and that of the spacer bush hole, and the diameter of the spacer bush hole is larger than that of the spacer bush B.

Preferably, the cutter outlet is provided with a copper sleeve.

Preferably, the cutter movement driving part further comprises an air hammer spring, the air hammer is sleeved with the air hammer spring, and the air hammer spring is located between the baffle and the hoop.

Preferably, the screw transmission device installs the protective sheath outward, the protective sheath is cup jointed in proper order by more than 4 protective sleeves and forms, sliding connection between the protective sleeve, and protective sleeve symmetry installs on the both sides of lateral shifting base, and the protective sleeve and the lateral shifting base fixed connection who are close to the lateral shifting base are close to the protective sleeve and the cabinet body fixed connection of the cabinet body.

Preferably, the two ends of the outer surface of the protective sleeve are respectively provided with an outer baffle ring a and an outer baffle ring B, the inner surface of the end of the protective sleeve, which is provided with the outer baffle ring B, is provided with an inner baffle ring, and the inner size of the inner baffle ring of each protective sleeve is larger than the outer size of the next sleeved protective sleeve, and is simultaneously smaller than the outer sizes of the outer baffle ring a and the outer baffle ring B of the next sleeved protective sleeve.

Preferably, the tool boxes, the tool movement driving device, the tool position detecting device and the broken tool detecting device are two in one group, the tool mounted in one tool box is a vertical tool, and the tool mounted in the other tool box is a horizontal tool.

The utility model has the advantages that:

1. the utility model provides an automatic tight machine that expands of impacted style copper rotor conducting bar is by air hammer output steady pressure to can guarantee that the tight degree of expanding of each conducting bar is even unanimous.

The utility model provides an automatic tight machine accommodation of expanding of impacted style copper rotor conducting bar is wide, the electric motor rotor of workable not unidimensional size, and degree of automation is high.

The utility model discloses the accuracy of processing position can be guaranteed to the cutter position detection device who is equipped with, effectively reduces the number of times of disconnected sword, improves machining efficiency.

The utility model discloses the cutter guide bar that is equipped with guarantees the exactness of tool bit processing position, avoids the tool bit aversion to appear.

The utility model discloses handle of a knife bumps with the apron when the spacer A that is equipped with can avoid the cutter to kick-back.

The utility model discloses the cutter spring that is equipped with can provide the resilience force for the cutter, cooperatees with cutter motion drive arrangement, realizes the up-and-down motion of cutter.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a base;

FIG. 3 is a schematic view of the back structure of the guiding box;

FIG. 4 is a schematic view of the construction of the tool mount;

FIG. 5 is a left side view of FIG. 4;

FIG. 6 is a schematic view showing a structure in which the cylinder head is pressed down in FIG. 5;

FIG. 7 is a schematic view of a tool box with tools mounted thereon;

FIG. 8 is a schematic structural view of a cover plate;

FIG. 9 is a schematic view of the construction of the tool box;

FIG. 10 is a cross-sectional view taken along line A-A of FIG. 9;

FIG. 11 is a schematic view of the structure of the tool shank;

FIG. 12 is a schematic view of the construction of the tool guide bar;

FIG. 13 is a schematic structural view of a swing arm joint;

fig. 14 is a schematic view of a protective sleeve;

FIG. 15 is a right side view of FIG. 14;

FIG. 16 is a schematic structural view of a lead screw drive;

FIG. 17 is a schematic view of the hammer stem;

FIG. 18 is a cross-sectional view taken along line B-B of FIG. 17;

in the figure, 1, a cabinet body; 2. installing a box body; 3. a guide box body; 4. a tool mounting bracket; 5. a photoelectric switch A; 6. a photoelectric switch B; 7. a guide rail; 8. transversely moving the base; 9. a protective sleeve; 10. a screw B; 11. a screw rod mounting seat; 12. a motor rotor; 13. a base; 14. a roller; 15. a protective sleeve; 1501. an outer retainer ring A; 1502. an outer retainer ring B; 1503. an inner baffle ring; 16. a chute; 17. a nut B; 18. a cylinder; 19. a cylinder joint; 20. a pressure lever; 21. a connecting rod; 2101. a pin shaft mounting hole; 2102. a circular arc-shaped groove; 22. a shaft pin; 23. a frame body supporting frame; 24. a hammer lever; 25. a tool box; 2501. supporting the step surface; 2502. a cutter guide rod mounting hole B; 2503. a cover plate fixing hole B; 2504. a cutter outlet; 26. a copper sleeve; 27. erecting a cutter; 28. a transverse cutter; 29. a cutter spring; 30. a knife handle; 3001. the hammer lever is embedded in the groove; 3002. a sleeve separating hole; 3003. a flange; 3004. a cutter mounting hole; 31. a cover plate; 3101. a hammer rod hole; 3102. a cutter guide rod mounting hole A; 3103. a cover plate fixing hole A; 32. a shaft seat; 33. a shaft sleeve; 34. a photoelectric switch C; 35. a circular nose bar; 36. hooping; 37. an air hammer; 38. an elliptical hole; 39. a frame body combining part; 40. a baffle plate; 41. an air hammer spring; 42. a spacer bush A; 43. a spacer bush B; 44. a screw hole is arranged on the proximity switch; 45. a cutter guide bar; 46. a screw A; 47. and a nut A.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-18, an impact type copper rotor bar automatic expansion machine comprises a workpiece positioning device, a cutter moving device, a cutter mounting device and a cutter motion control system;

the workpiece positioning device comprises a base 13, and two parallel rollers 14 are arranged on the base 13. The central lines of the two parallel rollers 14 are aligned with the central line of the tool bit of the cutter, the distance between the two rollers 14 is smaller than the diameter of a workpiece to be machined (a motor rotor 12 to be machined), and the two rollers 14 can be driven by a motor A to rotate in the same direction and at the same speed;

the cutter moving device comprises a transverse moving device and a lifting device.

The transverse moving device comprises a lead screw transmission device, a transverse moving base 8 and a protective sleeve 9.

The lead screw transmission device comprises a screw A46 and a nut A47, the screw A46 is installed on the cabinet body 1, and the nut A47 is fixedly connected with the transverse moving base 8.

Lead screw drive installs protective sheath 9 outward, protective sheath 9 is cup jointed in proper order by more than 4 protective sleeves 15 and forms, and protective sleeve 15 symmetry is installed on the both sides of lateral shifting base 8 (respectively install 6 protective sleeve 15 on the both sides of lateral shifting base 8 in this embodiment), is close to protective sleeve 15 and the lateral shifting base 8 fixed connection of lateral shifting base 8, is close to protective sleeve 15 and the cabinet body 1 fixed connection of the cabinet body 1. The two ends of the outer surface of the protection sleeve 15 are respectively provided with an outer baffle ring A1501 and an outer baffle ring B1502, the inner surface of the end, provided with the outer baffle ring B1502, of the protection sleeve 15 is provided with an inner baffle ring 1503, and when the inner size of the inner baffle ring 1503 of each protection sleeve 15 (for example, the protection sleeve 15 is square, the size here is the length and width, and for example, the protection sleeve 15 is circular, the size here is the diameter) is larger than the outer size of the next sleeved protection sleeve 15, and is smaller than the outer sizes of the outer baffle ring A1501 and the outer baffle ring B1502 of the next sleeved protection sleeve 15. This enables the protective sleeves 15 to be slidably connected without falling off.

The lifting device comprises a guide box body 3, a mounting box body 2 and a lead screw lifting device; the back of the guide box body 3 is provided with a sliding chute 16, the two sides of the installation box body 2 are provided with bosses for installing the guide rail 7, and the sliding chute 16 is matched with the guide rail 7; the lead screw lifting device comprises a lead screw B10, a nut B17 and a lead screw mounting seat 11; one of the screw rod mounting seats 11 is arranged on the transverse moving base 8, the other screw rod mounting seat is arranged at the top end of the mounting box body 2, and the nut B17 is fixed on the back of the guide box body 3; the motor B drives the screw A46 to move, and the motor C drives the screw B10 to move;

the cutter mounting device comprises a cutter mounting frame 4, a frame body supporting frame 23, a frame body combining part 39, a shaft seat 32 and a cutter box 25.

The tool mounting rack 4 is mounted on the guide box body 3, the rack body supporting frame 23 is mounted above a vertical plate of the tool mounting rack 4, the tool box 25 is mounted on a bottom transverse plate of the tool mounting rack 4, and the rack body combining piece 39 is mounted above the rack body supporting frame 23; the shaft seat 32 is installed on the front side surface of the frame body support frame 23.

The top end of the tool box 25 is provided with a cover plate 31, the cover plate 31 is provided with a hammer rod hole 3101, a tool guide rod mounting hole A3102 and a cover plate fixing hole A3103, the tool box 25 is provided with a cover plate 31 fixing hole B2503, and the cover plate 31 is fixed on the tool box 25 through the cover plate fixing holes A3103 and B by bolts.

The bottom surface of the cutter box 25 is provided with a supporting step surface 2501, a cutter outlet 2504 and a cutter guide rod mounting hole B2502.

A cutter and a cutter guide rod 45 are installed in the cutter box 25.

The cutter comprises a cutter handle 30 and a cutter head; the cutter handle 30 is provided with a

flange

3003, and 4 spacer sleeve holes 3002 are annularly formed in the flange 3003; the top end of the tool holder 30 is provided with a hammer lever fitting groove 3001, and the bottom of the tool holder 30 is provided with a tool mounting hole 3004. The cutter outlet 2504 is provided with a copper sleeve 26, the copper sleeve 26 is mounted on the supporting step surface 2501, a cutter spring 29 is sleeved outside the cutter handle 30, and the cutter spring 29 is located between the flange 3003 and the copper sleeve 26.

Knife guide bar 45 passes through spacer hole 3002 with one end positioned in knife guide bar mounting hole a3102 and the other end positioned in knife guide bar mounting hole B2502. And a spacer bush A42 and a spacer bush B43 are further mounted outside the cutter guide rod 45, the spacer bush A42 is located above the cutter handle 30, the diameter of the spacer bush A42 is larger than that of the spacer bush B43 and the spacer bush hole 3002, and the diameter of the spacer bush hole 3002 is larger than that of the spacer bush B43.

The tool motion control system comprises a tool motion driving device, a detection device and a control system.

the swing arm device comprises a swing arm connector, the swing arm device driving device comprises an air cylinder 18 and an air cylinder connector 19, and the clamping device comprises a hoop 36; the cutter movement driving part comprises an air hammer 37, an air hammer spring 41 and a hammer rod 24, the conical rod is installed at the output end of the air hammer 37, and an oval supporting surface is arranged at the upper part of the conical rod to support the air hammer 37; the tool motion drive component guide comprises a shaft seat 32; the swing arm combining part comprises a pressure lever 20, two ends of the pressure lever 20 are connected with connecting rods 21, one end of each connecting rod 21 is fixedly connected with the pressure lever 20, the other end of each connecting rod 21 is provided with an arc-shaped groove 2102, a pin shaft 22 is installed in the middle of each connecting rod 21 through a pin shaft 22 installation hole 2101, the swing arm combining part is installed on a frame body combining part 39 through the pin shaft 22, the air cylinder 18 is installed on the frame body combining part 39, and the pressure lever 20 is located right below an air cylinder joint 19; the left side and the right side of the anchor ear 36 are provided with circular convex rods 35, and the circular convex rods 35 are positioned in the circular arc-shaped grooves 2102. The shaft seat 32 is arranged in front of the frame body support frame 23, and a shaft sleeve 33 is arranged in the shaft seat 32; a baffle 40 is arranged in front of the frame body combining part 39, an air hammer 37 hole is formed in the baffle 40, and the air hammer 37 penetrates through the air hammer 37 hole and the shaft seat 32; the anchor ear 36 is fixedly installed on the air hammer 37, and the anchor ear 36 is located between the baffle 40 and the axle seat 32.

The detection device comprises a workpiece position detection device, a workpiece groove position detection device, a cutter position detection device and a cutter breaking detection device; the workpiece position detection device is a photoelectric switch A5, the workpiece groove position detection device is a photoelectric switch B6, the cutter position detection device is a photoelectric switch C34, and the broken cutter detection device is a proximity switch. The photoelectric switch A5 and the photoelectric switch B6 are both installed on a bottom cross plate of the tool mounting rack 4. The tool box 25 is provided with an elliptical hole 38, the proximity switch is mounted on the tool box 25 by bolts through a proximity switch mounting screw hole 44, and a detection end of the proximity switch passes through the elliptical hole 38 and is located in the tool box 25. The lower end of the photoelectric switch C34 is fixedly arranged on the shaft seat 32, the upper end of the photoelectric switch C34 is provided with a detection cavity, and the tail end of the circular convex rod 35 is positioned in the detection cavity.

In this embodiment, the tool box 25, the tool positioning device, the tool movement driving device, the tool position detecting device, and the broken tool detecting device are two in one group. The tools mounted in one tool box 25 are vertical knives 27 and the tools mounted in the other tool box 25 are horizontal knives 28.

The control system (not shown in the figure) comprises a control host, an input device and a display device; the motor A, the motor B, the motor C, the two cylinders 18, the two air hammers 37, the photoelectric switch A5, the photoelectric switch B6, the two photoelectric switches C34 and the two proximity switches are all electrically connected with a control host.

In this embodiment, the motor a, the motor B, and the motor C are all positive and negative rotation motors.

In this embodiment, the control host is a programmable controller, the display device includes a display device 1 and a display device 2, and both the display device 1 and the display device 2 are electrically connected to the control host. The display device 1 is a liquid crystal display screen and is used for displaying input parameter conditions, and the display device 2 is an LED display screen and is used for displaying processing progress conditions.

When the axial conducting bar needs to be expanded, a workpiece to be machined (the motor rotor 12) is placed between the two parallel rollers 14, meanwhile, the machining parameters are set by the input device at the control host, the set parameters comprise the size (including diameter and length) of the motor rotor 12, the number of grooves needing to be machined, the starting and stopping positions of the grooves and the distance between the end ring, the distance between the heat dissipation holes and the end ring and the like. After the parameter setting is completed, the equipment starts to work. The control host computer controls the motor C to start, drives the screw rod lifting device to move, and enables the cutter to be located at the machining height position (the cutter position is known, and the machining height position of the cutter can be calculated according to the size of the input motor rotor 12). And when the cutter reaches the required height position, the control host controls the motor C to stop rotating. And then the control host computer controls to start the motor B, the motor B drives the screw rod transmission device to move, and meanwhile, the photoelectric switch A5 detects whether the cutter reaches the position of the workpiece to be processed. When the photoelectric switch A5 detects the end ring of the workpiece to be processed, a signal is sent to the control host, and after the control host receives the signal, the control host controls the lead screw transmission device to move slowly, so that the cutter reaches the initial position of the groove (because the size of the motor rotor 12 is input in the control host, the distance between the start-stop position of the groove and the end ring, and the control host can calculate the start-stop position of the groove and the position of the heat dissipation hole according to the position of the end ring). And when the cutter reaches the position, the control host controls the motor B to stop rotating.

And then the photoelectric switch B6 detects whether the groove to be processed of the workpiece to be processed is at the processing position, if not, the photoelectric switch B6 sends a signal to the control host, the control host sends a signal to the motor A after receiving the signal, the motor A drives the two rollers 14 to rotate in the same direction, so as to drive the workpiece to be processed to rotate, and the photoelectric switch B6 continuously detects in the rotating process. When the groove to be machined is detected to be in a machining position, a signal is sent to the control host machine by the photoelectric switch B6, after the control host machine receives the signal, the control motor A stops rotating, and meanwhile, a signal is sent to the air cylinder 18 (the air cylinder 18 for driving the vertical knife 27), the air cylinder 18 starts to retract to drive the air cylinder connector 19 to move upwards, and under the gravity of the air hammer 37 and the anchor ear 36 and the resilience force of the air hammer spring 41, the air hammer 37 moves downwards and drives the hammer rod 24 to be close to the knife handle 30. Then the control host computer controls the air hammer 37 to start, the air hammer 37 presses down to drive the hammer rod 24, the hammer rod 24 drives the cutter (the cutter head moves downwards while compressing the cutter spring 29) to move downwards, then the air hammer 37 is closed, the cutter returns upwards under the action of the resilience force of the cutter spring 29, meanwhile, the control host computer controls the motor B to start, the motor B drives the lead screw transmission device and the lead screw transmission device to drive the cutter to slightly move leftwards or rightwards, then the control host computer controls the motor B to stop rotating, then the control host computer controls the air hammer 37 to start, the air hammer 37 drives the hammer rod 24 and the hammer rod 24 to drive the cutter to move downwards, and the steps are repeated, so that the cutter reciprocates up and down in the process of slightly moving leftwards or rightwards, and the guide bar is expanded.

When the cutter moves to the position of the heat dissipation hole, the control host controls the air cylinder 18 to downwards drive the air cylinder connector 19, the air cylinder connector 19 downwards presses the pressure rod 20, and therefore the other end of the connecting rod 21 drives the hoop 36 and the hoop 36 drives the air hammer 37 to upwards move until the air cylinder 18 reaches an output value. When the air hammer 37 moves upwards, the hammer rod 24 loses pressure, and the tool shank 30 returns upwards to the original position under the action of the resilience force of the tool spring 29, so that the tool bit is driven to move upwards. After the cutter passes through the heat dissipation hole, the control host controls the cylinder 18 to retract, drives the cylinder joint 19 to move upwards, and under the gravity of the air hammer 37 and the hoop 36 and the resilience force of the air hammer spring 41, the air hammer 37 moves downwards, drives the hammer rod 24 to press the cutter handle 30 downwards, and compresses the cutter spring 29 while the cutter head moves downwards. This is repeated.

When the air hammer 37 presses the hammer rod 24 downwards, the hammer rod 24 presses the tool shank 30 downwards to drive the tool bit to move downwards, and whether the tool bit of the tool bit smoothly enters the groove is detected by the photoelectric switch C34. If the photoelectric switch C34 detects that the descending position of the circular convex rod 35 reaches the preset position, the cutter head smoothly enters the groove downwards; if the photoelectric switch C34 detects that the circular convex rod 35 fails to reach the preset position after falling, it indicates that the cutter head fails to enter the groove downwards smoothly (because the cutter head falls into the groove in the falling process, if the cutter head fails to fall into the groove, the cutter head falls onto the iron cores on two sides of the groove, at this time, the cutter head cannot continue to fall, and the circular convex rod 35 is prevented from continuing to fall, so that the circular convex rod 35 cannot fall to the preset position), at this time, the photoelectric switch C34 sends a signal to the control host, and the control host sends an alarm signal after receiving the signal.

When the cutter head is broken, the cutter descends more than the cutter in a normal working state, the proximity switch detects the cutter handle 30 (the proximity switch cannot detect the cutter handle 30 in the normal working state), the proximity switch sends a signal to the control host, and the control host sends an alarm signal.

When it is desired to machine the circumferential groove next to the end ring, a cross knife 28 is used. The control principle of the horizontal knife 28 is identical to that of the vertical knife 27, and will not be described in detail.

In the utility model, the knife handle 30 and the knife head are made of 40CrNiMoA materials and are quenched. So that the shank 30 and the tool bit have high strength and good toughness.

The above description is only a preferred embodiment of the present invention, the protection scope of the present invention is not limited thereto, and any person skilled in the art can obviously obtain simple changes or equivalent replacements of the technical solutions within the technical scope of the present invention.

Claims

1. The utility model provides an automatic tight machine that expands of impacted style copper rotor conducting bar which characterized in that: comprises a workpiece positioning device, a cutter moving device, a cutter mounting device and a cutter motion control system;

2. The automatic expansion machine of impact type copper rotor conducting bar according to claim 1, characterized in that:

the supporting and positioning device comprises two parallel rollers; the driving device for supporting the positioning device comprises a motor A; the two rollers can be driven by the motor A to rotate in the same direction and at the same speed;

3. The automatic expansion machine of impact type copper rotor conducting bar according to claim 2, characterized in that: the swing arm connector comprises a pressure rod, two ends of the pressure rod are connected with connecting rods, one end of each connecting rod is fixedly connected with the pressure rod, the other end of each connecting rod is provided with an arc-shaped groove, a pin shaft is arranged in the middle of each connecting rod through a pin shaft mounting hole, the swing arm connector is mounted on the frame body connector through the pin shaft, and the pressure rod is positioned right below a cylinder joint of the cylinder; circular protruding rods are arranged on the left side and the right side of the anchor ear and are located in the circular arc-shaped grooves.

4. The automatic expansion machine of impact type copper rotor conducting bar according to claim 2, characterized in that: the top end of the cutter box is provided with a cover plate, the cover plate is provided with a hammer rod hole and a cover plate fixing hole A, the cutter box is provided with a cover plate fixing hole B, and the cover plate is fixed on the cutter box through a cover plate fixing hole A, B by a bolt; the cutter comprises a cutter handle and a cutter head; the knife handle is provided with a flange; the top end of the knife handle is provided with a hammer rod embedding groove, and the bottom of the knife handle is provided with a knife head mounting hole; the cutter spring is sleeved outside the cutter handle, a supporting step surface and a cutter outlet are formed in the bottom surface of the cutter box, and the cutter spring is located between the flange and the supporting step surface; the novel knife tool is characterized in that a knife guide rod is further installed in the knife tool box, a knife guide rod installation hole A is formed in the cover plate, a knife guide rod installation hole B is formed in the bottom surface of the knife tool box, the knife guide rod penetrates through the knife handle, one end of the knife guide rod is installed in the knife guide rod installation hole A, and the other end of the knife guide rod is installed in the knife guide rod installation hole B.

5. The automatic expansion machine of impact type copper rotor conducting bar according to claim 4, characterized in that: the cutter guide rod is also provided with a spacer bush A and a spacer bush B, a spacer bush hole is formed in the flange of the cutter handle, the spacer bush A is located above the cutter handle, the diameter of the spacer bush A is larger than that of the spacer bush B and the spacer bush hole, and the diameter of the spacer bush hole is larger than that of the spacer bush B.

6. The automatic expansion machine of impact type copper rotor conducting bar according to claim 4, characterized in that: and a copper sleeve is arranged at the cutter outlet.

7. The automatic expansion machine of impact type copper rotor conducting bar according to claim 2, characterized in that: the cutter movement driving part further comprises an air hammer spring, the air hammer is sleeved with the air hammer spring, and the air hammer spring is located between the baffle and the hoop.

8. The automatic expansion machine of impact type copper rotor conducting bar according to claim 2, characterized in that: the lead screw transmission device installs the protective sheath outward, the protective sheath is cup jointed in proper order by more than 4 protective sleeves and forms, sliding connection between the protective sleeve, and protective sleeve installs on the both sides of lateral shifting base, is close to the protective sleeve and the lateral shifting base fixed connection of lateral shifting base, is close to the protective sleeve and the cabinet body fixed connection of the cabinet body.

9. The automatic expansion machine of impact copper rotor conducting bar according to claim 8, characterized in that: the surface both ends of protective sleeve are equipped with outer fender ring A and keep off ring B outward respectively, the protective sleeve is equipped with the internal surface that keeps off that one end of ring B outward and is equipped with interior fender ring, and keeps off the inside dimension that encircles when the inside dimension of individual protective sleeve is greater than the outside dimension of the next protective sleeve that cup joints, is less than the outside dimension that keeps off ring A and outer fender ring B of the next protective sleeve that cup joints simultaneously.

10. The automatic expansion machine of an impact type copper rotor bar according to any one of claims 1 to 9, characterized in that: the cutter box, the cutter motion driving device, the cutter position detection device and the cutter breakage detection device are two in one group.