CN214769473U

CN214769473U - Novel power head

Info

Publication number: CN214769473U
Application number: CN202120756497.5U
Authority: CN
Inventors: 李培平; 颜传明
Original assignee: Yuhuan Midi Technology Co ltd
Current assignee: Yuhuan Midi Technology Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-19
Anticipated expiration: 2031-04-12

Abstract

The utility model provides a novel unit head belongs to mechanical technical field. The power head solves the problems that the existing power head is complex in structure, not reliable enough in work and low in machining precision. This novel unit head, including the main shaft cover and link firmly the support at the main shaft cover upside, the main shaft is worn to be equipped with at the middle part of main shaft cover, and the middle part of main shaft is worn to be equipped with integral key shaft and the relative main shaft axial of integral key shaft and is linked firmly circumferential direction, and the front end of integral key shaft is for being used for linking firmly the installation department of cutter, and the rear end of integral key shaft is power input end, is equipped with the slurcam on the support and drives the actuating mechanism of the reciprocal horizontal migration of slurcam, the lower extreme of slurcam stretch into in the main shaft cover and link firmly mutually with the main shaft, has linked firmly two piece at least guide arms and guide arm on the support and is setting from top to bottom, guide arm and main shaft parallel arrangement, be equipped with guide arm assorted guide pin bushing and guide arm on the slurcam and the guide pin bushing passes corresponding guide pin bushing. This novel unit head has the reliable and high advantage of machining precision of stable in structure.

Description

Novel power head

Technical Field

The utility model belongs to the technical field of machinery, a unit head, especially a novel unit head are related to.

Background

The power head is a power component which can realize main movement and feed movement and has automatic workpiece circulation. The novel variable-speed transmission mechanism is a simple variable-speed transmission mechanism, has various forms, has the basic principle that a motor drives a gear variable-speed mechanism, can realize functions of boring, milling, drilling and the like, and can do linear motion in a small range due to the fact that some of the variable-speed transmission mechanism is provided with a guide rail.

In order to ensure the use stability of the power head in the start-stop state, conventionally, it is easy to think that only the main shaft moves along the axial direction, and various driving sources (such as a rotary driving source for driving the main shaft to rotate and the like) are all fixed with the machine tool, that is, only the main shaft and the machine tool generate axial relative motion, so that parts as few as possible move in a reciprocating manner relative to the machine tool, the shaking positions are reduced, and the movement stability in the start-stop state is further ensured.

For example, the Chinese patent document discloses an automatic tapping power head mechanism (application number: 200920050900.1), which comprises a bracket with an upper transverse supporting arm and a lower transverse supporting arm, wherein a rotary main shaft is vertically arranged on the bracket, and a floating tap chuck is arranged at the lower end of the rotary main shaft; a clutch component sleeved on the rotary main shaft is arranged between the two transverse supporting arms of the bracket, the clutch component comprises an upper clutch wheel and a lower clutch wheel, belt pulleys for transmitting power are arranged on the two clutch wheels, and an upper clutch cover and a lower clutch cover corresponding to the two clutch wheels are arranged on the rotary main shaft; the bracket is provided with an air cylinder and a push rod which is connected with an air cylinder piston rod and is parallel to the rotating main shaft; the clutch component is connected with the push rod through the shifting fork. But the automatic tapping power head mechanism has the advantages of complex structure, unreliable work and low machining precision.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a stable in structure is reliable and the novel unit head that machining precision is high.

The purpose of the utility model can be realized by the following technical proposal: the novel power head comprises a main shaft sleeve and a bracket fixedly connected with the upper side of the main shaft sleeve, a main shaft is arranged in the middle of the main shaft sleeve in a penetrating way, a spline shaft is arranged in the middle of the main shaft in a penetrating way and is fixedly connected with the main shaft in the axial direction and rotates in the circumferential direction, the front end of the spline shaft is an installation part for fixedly connecting a cutter, the rear end of the spline shaft is a power input end, the bracket is provided with a pushing plate and a driving mechanism for driving the pushing plate to reciprocate and horizontally move, it is characterized in that the lower end of the pushing plate extends into the main shaft sleeve and is fixedly connected with the main shaft, the bracket is fixedly connected with at least two guide rods which are arranged up and down, the guide rods are arranged in parallel with the main shaft, the pushing plate is provided with a guide sleeve matched with the guide rod, and the guide rod penetrates through the guide sleeve correspondingly.

The cutter has been linked firmly on the installation department, at the during operation, it rotates to drive the integral key shaft through the power input end to drive the cutter on the installation department and rotate, thereby drive the slurcam translation through actuating mechanism and drive main shaft and integral key shaft axial reciprocating motion, because the slurcam is equipped with two at least guide arms with the support, set up about two guide arms are, and during operation intensity is high, and difficult production translation has improved the machining precision, and this novel power has the advantage that the structure is reliable and job stabilization simultaneously.

In the novel power head, the driving mechanism is a hydraulic cylinder with a cylinder body fixedly connected to the support, a piston rod of the hydraulic cylinder is arranged in parallel with the main shaft, and the piston rod of the hydraulic cylinder is fixedly connected with the pushing plate. The driving mechanism is a hydraulic cylinder and has the advantages of simple structure and reliable and stable operation.

In the novel power head, the hydraulic cylinder is replaced by an air cylinder.

In the novel power head, a bearing is arranged between the end part of the main shaft and the spline shaft, a first convex shoulder is arranged on the inner side wall of the main shaft, a second convex shoulder is arranged on the outer side wall of the spline shaft, and the inner ring and the outer ring of the bearing are respectively abutted against the first convex shoulder and the second convex shoulder. The inner ring and the outer ring of the bearing respectively abut against the first convex shoulder and the second convex shoulder, and the bearing has the advantage of good positioning effect.

In the novel power head, the middle of the spline shaft is sleeved with a second bearing, the outer ring of the second bearing is embedded in the main shaft, the middle of the spline shaft is in threaded connection with a lock nut, and the inner end face of the lock nut abuts against the inner ring of the second bearing.

In the novel power head, the power input end of the spline shaft is fixedly connected with a synchronous belt wheel. The spline shaft is driven to rotate through synchronous driving, and the gear transmission mechanism has the advantages of reliable work and high transmission efficiency. Alternatively, the timing pulleys are replaced with gears.

In the novel power head, the outer side of the main shaft sleeve is fixedly connected with a first inductor and a second inductor, and the first inductor and the second inductor are respectively arranged on the front side and the rear side of the push plate. The first sensor and the second sensor are both connected with a controller, and the controller controls the running state of the driving mechanism.

In foretell novel unit head, one side of slurcam link firmly connecting rod one, connecting rod one with guide arm parallel arrangement, connecting rod one on link firmly two around setting response piece one and response piece two. When the second sensor senses the second sensing block, the driving mechanism is controlled by the controller to drive the pushing plate to advance, and when the first sensor senses the first sensing block, the driving mechanism is controlled by the controller to decelerate, so that the pushing plate is decelerated in feeding, and the automatic feeding device has the advantages of reliable work, stable processing and high processing precision.

In foretell novel unit head, the other end of slurcam link firmly with connecting rod two of a parallel arrangement, connecting rod two on link firmly the driving lever, the main shaft cover on be equipped with the governing valve, the governing valve on have a toggle knob, the driving lever can promote toggle knob rotate. The movement of the pushing plate drives the shifting lever to move through the second connecting rod, so that the shifting knob is pushed to rotate, the oil pressure of the hydraulic cylinder is adjusted through the speed adjusting valve, the feeding speed of the hydraulic cylinder is adjusted, and the hydraulic cylinder has the advantage of reliable work.

In foretell novel unit head, the slurcam on link firmly with guide arm parallel arrangement's connecting rod, the outer end threaded connection of connecting rod have the nut, the support on link firmly the backer, the connecting rod pass the backer, the inner terminal surface of nut can support and lean on the outer terminal surface of backer on. Through setting up above-mentioned nut and backer, the stroke of the slurcam of restriction makes reliable operation, adjusts the position of nut through rotating the nut to adjust the stroke of slurcam, have the advantage of adjusting convenient and simple structure.

In the novel power head, the backer is provided with the third inductor, and the third inductor can induce the nut. When the nut leans against the backer, the third inductor induces the nut, sends a signal to the controller, and drives the driving mechanism to drive the pushing plate to reset through the controller.

Compared with the prior art, this novel unit head has following advantage:

1. because the pushing plate and the bracket are provided with at least two guide rods which are arranged up and down, the strength is high during working, translation is not easy to generate, the processing precision is improved, and meanwhile, the novel power has the advantages of reliable structure and stable working;

2. The inner ring and the outer ring of the bearing respectively abut against the convex shoulder I and the convex shoulder II, and the bearing has the advantage of good positioning effect;

3. when the second sensor senses the second sensing block, the driving mechanism is controlled by the controller to drive the pushing plate to move forwards, and when the first sensor senses the first sensing block, the driving mechanism is controlled by the controller to decelerate, so that the feeding of the pushing plate is decelerated, and the device has the advantages of reliable work, stable processing and high processing precision;

4. when the nut leans against the backer, the third inductor induces the nut, sends a signal to the controller, and drives the driving mechanism to drive the pushing plate to reset through the controller.

Drawings

Fig. 1 is a perspective view of the novel power head.

Fig. 2 is a perspective view of another angle of the novel power head.

Fig. 3 is a schematic top view of the novel powerhead.

Fig. 4 is a schematic sectional view a-a of fig. 3.

In the figure, 1, a spindle cover; 2. a support; 3. a main shaft; 3a, a first shoulder; 4. a spline shaft; 4a, an installation part; 4b, a power input end; 4c, a shoulder II; 5. a push plate; 6. a guide bar; 7. a guide sleeve; 8. a hydraulic cylinder; 9. a bearing; 10. a second bearing; 11. locking a nut; 12. a synchronous pulley; 13. a first inductor; 14. a second inductor; 15. a first connecting rod; 16. a first induction block; 17. a second induction block; 18. a second connecting rod; 19. a deflector rod; 20. a speed regulating valve; 21. a knob is pulled; 22. a connecting rod; 23. a nut; 24. backing a mountain; 25. and a third inductor.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the novel power head comprises a main shaft sleeve 1 and a support 2 fixedly connected to the upper side of the main shaft sleeve 1, a main shaft 3 is arranged at the middle part of the main shaft sleeve 1 in a penetrating manner, a spline shaft 4 and a spline shaft 4 are arranged at the middle part of the main shaft 3 in a penetrating manner and are fixedly connected with circumferential rotation in the axial direction relative to the main shaft 3, the front end of the spline shaft 4 is an installation part 4a for fixedly connecting a cutter, the rear end of the spline shaft 4 is a power input end 4b, a push plate 5 and a drive are arranged on the support 2, a driving mechanism for driving the push plate 5 to move horizontally in a reciprocating manner is provided, a cylinder body is a hydraulic cylinder 8 fixedly connected to the support 2, and a piston rod of the hydraulic cylinder 8 is fixedly connected with the main shaft 3 in parallel and a piston rod of the hydraulic cylinder 8 is fixedly connected with the push plate 5. The lower extreme of catch plate 5 stretches into in the main shaft cover 1 and links firmly with main shaft 3 mutually, links firmly two at least guide arms 6 and guide arm 6 on the support 2 and be setting up from top to bottom, and guide arm 6 and main shaft 3 parallel arrangement are equipped with on the catch plate 5 with guide arm 6 assorted guide pin bushing 7 and guide arm 6 pass and correspond guide pin bushing 7.

A bearing 9 is arranged between the end part of the main shaft 3 and the spline shaft 4, a convex shoulder I3 a is arranged on the inner side wall of the main shaft 3, a convex shoulder II 4c is arranged on the outer side wall of the spline shaft 4, and the inner ring and the outer ring of the bearing 9 are respectively abutted against the convex shoulder I3 a and the convex shoulder II 4 c; the middle part of the spline shaft 4 is sleeved with a second bearing 10, the outer ring of the second bearing 10 is embedded in the main shaft 3, the middle part of the spline shaft 4 is in threaded connection with a lock nut 11, and the inner end face of the lock nut 11 abuts against the inner ring of the second bearing 10.

The power input end 4b of the spline shaft 4 is fixedly connected with a synchronous pulley 12. Through synchronous drive integral key shaft 4 rotation, have reliable operation and the efficient advantage of transmission. Alternatively, the timing pulley 12 is replaced with a gear.

The outside of main shaft cover 1 has linked firmly inductor one 13 and inductor two 14, and inductor one 13 and inductor two 14 set up both sides around pushing plate 5 respectively, and one side of pushing plate 5 has linked firmly connecting rod one 15, and connecting rod one 15 and guide arm 6 parallel arrangement have linked firmly two induction piece one 16 and induction piece two 17 that set up around on connecting rod one 15. The pushing plate 5 is fixedly connected with a connecting rod 22 which is arranged in parallel with the guide rod 6, the outer end of the connecting rod 22 is in threaded connection with a nut 23, the support 2 is fixedly connected with a backer 24, the connecting rod 22 penetrates through the backer 24, and the inner end face of the nut 23 can abut against the outer end face of the backer 24. The backer 24 is provided with a third inductor 25, and the third inductor 25 can induce the nut 23. The first inductor 13, the second inductor 14 and the third inductor 25 are all connected with the controller.

The other end of the pushing plate 5 is fixedly connected with a second connecting rod 18 which is arranged in parallel with the first connecting rod 15, the second connecting rod 18 is fixedly connected with a shifting lever 19, a speed regulating valve 20 is arranged on the spindle sleeve 1, a shifting knob 21 is arranged on the speed regulating valve 20, and the shifting lever 19 can push the shifting knob 21 to rotate.

The mounting part 4a is fixedly connected with a cutter, when the synchronous belt pulley 12 drives the spline shaft 4 to rotate so as to drive the cutter on the mounting part 4a to rotate, the second sensor 14 senses the second sensing block 17, the driving mechanism is controlled by the controller to drive the pushing plate 5 to advance, the pushing plate 5 drives the spindle 3 and the spline shaft 4 to feed, the pushing plate 5 simultaneously drives the second connecting rod 18 to drive the shifting rod 19 to move, when the shifting rod 19 moves to the shifting knob 21 of the speed regulating valve 20, the shifting rod 19 pushes the shifting knob 21 to rotate, the oil pressure of the hydraulic cylinder 8 is reduced through the speed regulating valve 20, so that the pushing plate 5 drives the spindle 3 to feed and decelerate, cutting processing is carried out, when the pushing plate 5 moves forwards until the first sensor 13 senses the first sensing block 16, the first sensor 13 sends a signal to the controller, the hydraulic cylinder 8 is controlled to decelerate through the controller, so that the pushing plate 5 drives the spindle 3 to feed and decelerate again, when the nut 23 abuts against the backer 24, the third sensor 25 senses the nut 23, sends a signal to the controller, and enables the hydraulic cylinder 8 to drive the push plate 5 to reset through the controller. Because the catch plate 5 is equipped with two at least guide arms 6 with 2 supports 2 of support, two guide arms 6 are setting from top to bottom, and the during operation intensity is high, and difficult production translation has improved the machining precision, and this novel power has the advantage that the structure is reliable and job stabilization simultaneously.

The hydraulic cylinder 8 is replaced by a cylinder. As another mode, the hydraulic cylinder 8 is replaced by a servo motor and a screw rod and nut assembly.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the spindle sleeve 1, the bracket 2, the spindle 3, the first shoulder 3a, the spline shaft 4, the mounting portion 4a, the power input end 4b, the second shoulder 4c, the pushing plate 5, the guide rod 6, the guide sleeve 7, the hydraulic cylinder 8, the bearing 9, the second bearing 10, the locking nut 11, the synchronous pulley 12, the first inductor 13, the second inductor 14, the first connecting rod 15, the first induction block 16, the second induction block 17, the second connecting rod 18, the shift lever 19, the speed control valve 20, the shift knob 21, the connecting rod 22, the nut 23, the backer 24, the third inductor 25, and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The novel power head comprises a main shaft sleeve (1) and a support (2) fixedly connected to the upper side of the main shaft sleeve (1), wherein a main shaft (3) is arranged in the middle of the main shaft sleeve (1) in a penetrating mode, a spline shaft (4) is arranged in the middle of the main shaft (3) in a penetrating mode, the spline shaft (4) is opposite to the main shaft (3) in an axial direction and fixedly connected with circumferential rotation, the front end of the spline shaft (4) is an installation part (4a) for fixedly connecting a cutter, the rear end of the spline shaft (4) is a power input end (4b), the support (2) is provided with a push plate (5) and a driving mechanism for driving the push plate (5) to move horizontally in a reciprocating mode, the novel power head is characterized in that the lower end of the push plate (5) extends into the main shaft sleeve (1) and is fixedly connected with the main shaft (3), the support (2) is fixedly connected with at least two guide rods (6) and the guide rods (6) are arranged up and down, the guide rod (6) and the main shaft (3) are arranged in parallel, a guide sleeve (7) matched with the guide rod (6) is arranged on the pushing plate (5), and the guide rod (6) penetrates through the guide sleeve (7).

2. The novel power head according to claim 1, wherein the driving mechanism is a hydraulic cylinder (8) having a cylinder body fixedly connected to the support (2), a piston rod of the hydraulic cylinder (8) is arranged in parallel with the main shaft (3), and a piston rod of the hydraulic cylinder (8) is fixedly connected to the push plate (5).

3. The novel power head according to claim 1, characterized in that a bearing (9) is arranged between the end of the main shaft (3) and the spline shaft (4), a first shoulder (3a) is arranged on the inner side wall of the main shaft (3), a second shoulder (4c) is arranged on the outer side wall of the spline shaft (4), and the inner ring and the outer ring of the bearing (9) are respectively abutted against the first shoulder (3a) and the second shoulder (4 c).

4. The novel power head according to claim 1, characterized in that a second bearing (10) is sleeved in the middle of the spline shaft (4), the outer ring of the second bearing (10) is embedded in the main shaft (3), a locking nut (11) is connected to the middle of the spline shaft (4) in a threaded manner, and the inner end face of the locking nut (11) abuts against the inner ring of the second bearing (10).

5. The novel power head according to claim 1, 2, 3 or 4, characterized in that a power input end (4b) of the spline shaft (4) is fixedly connected with a synchronous pulley (12).

6. The novel power head according to claim 1, 2, 3 or 4, wherein a first inductor (13) and a second inductor (14) are fixedly connected to the outer side of the spindle sleeve (1), and the first inductor (13) and the second inductor (14) are respectively arranged on the front side and the rear side of the push plate (5).

7. The novel power head according to claim 6, characterized in that a first connecting rod (15) is fixedly connected to one side of the pushing plate (5), the first connecting rod (15) is arranged in parallel with the guide rod (6), and the first connecting rod (15) is fixedly connected with a first sensing block (16) and a second sensing block (17) which are arranged in front and back.

8. The novel power head according to claim 1, 2, 3 or 4, characterized in that the other end of the push plate (5) is fixedly connected with a second connecting rod (18) arranged in parallel with the first connecting rod (15), the second connecting rod (18) is fixedly connected with a shift lever (19), the spindle sleeve (1) is provided with a speed regulating valve (20), the speed regulating valve (20) is provided with a shift knob (21), and the shift lever (19) can push the shift knob (21) to rotate.

9. The novel power head according to claim 1, 2, 3 or 4, characterized in that the push plate (5) is fixedly connected with a connecting rod (22) arranged in parallel with the guide rod (6), the outer end of the connecting rod (22) is connected with a nut (23) in a threaded manner, the bracket (2) is fixedly connected with a support (24), the connecting rod (22) penetrates through the support (24), and the inner end surface of the nut (23) can abut against the outer end surface of the support (24).

10. The novel power head as claimed in claim 9, wherein a third sensor (25) is provided on the back rest (24), and the third sensor (25) can sense the nut (23).