CN216325639U - Vertical driving mechanism for gear mandrel machining - Google Patents
Vertical driving mechanism for gear mandrel machining Download PDFInfo
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- CN216325639U CN216325639U CN202122722752.7U CN202122722752U CN216325639U CN 216325639 U CN216325639 U CN 216325639U CN 202122722752 U CN202122722752 U CN 202122722752U CN 216325639 U CN216325639 U CN 216325639U
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Abstract
The utility model provides a vertical driving mechanism for machining a gear mandrel, and belongs to the technical field of machinery. It has solved the current not good problem of actuating mechanism life-span. The vertical driving mechanism for gear mandrel machining comprises a connecting frame, wherein a barrel-shaped connecting part is arranged at the upper part of the connecting frame, a gear pulling is arranged on the top wall of the connecting part, a tip is vertically arranged in the connecting part, the tip part extends out of the connecting part, a piston is arranged in the connecting part in an up-and-down sliding manner, an oil storage cavity is formed between the lower side of the piston and the inner wall of the connecting part, an oil hole communicated with the oil storage cavity is arranged on the bottom wall of the connecting part in a penetrating manner, and the oil hole and the connecting part are coaxially arranged; an oil pipe is rotationally arranged in the oil hole, and a seal is formed between the outer wall of the oil pipe and the inner wall of the oil hole; the upper side of the piston is pressed with a connecting sleeve, the connecting sleeve is connected with the connecting part in a matching way through a spline, and the top rod part is inserted and fixed in the connecting sleeve. The vertical driving mechanism for machining the gear mandrel has long service life.
Description
Technical Field
The utility model belongs to the technical field of machinery, relates to gear mandrel machining equipment, and particularly relates to a vertical driving mechanism for gear mandrel machining.
Background
The gear mandrel generally has a certain length, and when the gear mandrel is processed, two tops respectively support two ends of the mandrel to realize axial limiting, and then the driving mechanism drives the mandrel to rotate around the axis of the mandrel to process.
The existing driving mechanism is a clamp (application number: 201821379930.2) for hobbing of shaft-gear products, as disclosed in Chinese patent library, wherein a first end of the shaft-gear product is provided with a first central taper hole, a second end of the shaft-gear product is provided with a shaft-gear end face, and the shaft-gear end face is provided with a second central taper hole; the first center is arranged in the central guide hole, is in positioning fit with the second central taper hole and is used for carrying out central positioning on shaft and gear products; the center shaft of the driving seat, the center shaft of the shaft tooth product and the center shaft of the second tip are coaxially and collinearly arranged; the spring type driving device is characterized by further comprising a compression spring, wherein a spring placing hole is further formed in the driving seat, the compression spring is installed in the spring placing hole, and the compression spring is in contact with the bottom end of the first tip and forces the first tip to slide outwards in the central guide hole.
When the clamp is used, the first tip does not rotate along with the driving seat, so that large friction exists between the tip and the mandrel, the abrasion speed of the first tip is increased, and the service life is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the prior art and provides a long-service-life vertical driving mechanism for machining a gear mandrel.
The purpose of the utility model can be realized by the following technical scheme: a vertical driving mechanism for machining a gear mandrel comprises a connecting frame, wherein a barrel-shaped connecting part is arranged at the upper part of the connecting frame, a gear pulling is arranged on the top wall of the connecting part, a tip is vertically arranged in the connecting part, and the tip part extends out of the connecting part; an oil pipe is rotationally arranged in the oil hole, and a seal is formed between the outer wall of the oil pipe and the inner wall of the oil hole; the upper side of the piston is pressed with a connecting sleeve, the connecting sleeve is connected with the connecting part in a matched mode through a spline, the shape and the size of an inner hole of the connecting sleeve are matched with the rod part of the center, and the rod part of the center is inserted and fixed in the connecting sleeve.
In an actual product, a tooth socket matched with the tooth pulling is arranged on the end face of the mandrel;
the vertical driving mechanism has the following use process: the connecting frame is connected with the rotating mechanism and is driven to rotate by the rotating mechanism; the centre is matched with a movable centre which is positioned right above the centre and can move up and down to clamp the mandrel, and at the moment, the pulling teeth are inserted in the tooth grooves to form circumferential matching between the connecting part and the mandrel, so that the mandrel rotates along with the connecting frame; after the mandrel is machined, injecting hydraulic oil into the oil storage cavity through the oil pipe to enable the center to move upwards to jack up the mandrel; after the mandrel is taken down, a certain amount of hydraulic oil is pumped out from the oil storage cavity through the oil pipe, so that the tip can smoothly move down under the jacking of the mandrel.
The centre is fixedly connected with the connecting frame in the circumferential direction through the connecting sleeve and moves axially, so that the centre can synchronously rotate along with the connecting frame on the premise of not influencing the centre to move and tightly push the mandrel, the friction generated between the centre and the mandrel is effectively reduced, the wear speed of the centre is delayed, and the service life is prolonged.
In the vertical driving mechanism for processing the gear mandrel, the connecting frame comprises a frame body and a cylinder body vertically fixed on the frame body, a support ring is fixed at the lower end of the cylinder body in a sealing manner, and the support ring and the cylinder body form the connecting part; the hole of support ring is above-mentioned oilhole, and oil pipe rotates and sets up on the support ring, forms foretell oil storage chamber between piston, barrel and the support ring three, and adapter sleeve and barrel spline fit. By adopting the design, the assembly of each part is convenient.
In the vertical driving mechanism for machining the gear mandrel, the annular step is formed on the inner wall of the cylinder body and consists of the step side wall and the step bottom wall, the connecting sleeve is positioned in the annular step and is in spline fit with the step side wall, and the upper end of the connecting sleeve is pressed on the step bottom wall so as to limit the upward moving distance of the tip, prevent the tip from being separated and ensure the structural integrity of the whole vertical driving mechanism.
In the vertical driving mechanism for machining the gear mandrel, the top wall of the connecting sleeve is integrally formed with the convex ring, the convex ring is sleeved outside the tip, the outer diameter of the convex ring is smaller than the inner diameter of the side wall of the step, and the top wall of the convex ring is pressed on the annular bottom wall.
In foretell vertical actuating mechanism of gear dabber processing, radial through has the mounting hole on the bulge loop, and the mounting hole has two at least and along adapter sleeve circumference equipartition, all is equipped with the screw in every mounting hole, and head of the screw and pole portion respectively sticiss on bulge loop and top to stable connection bulge loop and top have simple structure, simple to operate's advantage.
In the vertical driving mechanism for processing the gear mandrel, the cylinder wall of the cylinder body is radially penetrated with the operation holes, the number of the operation holes is the same as that of the installation holes, and each operation hole is opposite to one screw head. When the tool is used, the tool extends into the barrel through the operation hole to loosen or screw the screw, and the tip can be independently dismounted by upwards pulling the tip or downwards pressing the tip, so that the operation is convenient.
In the vertical driving mechanism for processing the gear mandrel, the outer wall of the support ring is provided with the annular groove, the annular groove is internally provided with the sealing ring, and the outer side wall of the sealing ring is abutted against the inner wall of the cylinder body, so that reliable sealing is formed between the support ring and the cylinder body.
In the vertical driving mechanism for machining the gear mandrel, the outer side wall of the oil pipe is provided with an annular mounting groove, an o-shaped ring is arranged in the mounting groove, and the outer peripheral surface of the o-shaped ring is abutted to the inner wall of the oil hole, so that reliable sealing is formed between the support ring and the oil pipe.
In the vertical driving mechanism for processing the gear mandrel, the annular positioning seat is integrally formed on the bottom wall of the support ring, the positioning seat is sleeved outside the oil pipe, and the positioning seat is connected with the oil pipe through the bearing.
Compared with the prior art, the vertical driving mechanism for processing the gear mandrel has the advantages that:
1. the centre is fixedly connected with the connecting frame in the circumferential direction through the connecting sleeve and moves axially, so that the centre can synchronously rotate along with the connecting frame on the premise of not influencing the centre to move and tightly push the mandrel, the friction generated between the centre and the mandrel is effectively reduced, the wear speed of the centre is delayed, and the service life is prolonged.
2. When the tool is used, the tool extends into the barrel through the operation hole to loosen or screw the screw, and the tip can be independently dismounted by upwards pulling the tip or downwards pressing the tip, so that the operation is convenient.
Drawings
Fig. 1 is a schematic structural diagram of a vertical driving mechanism for gear mandrel processing.
Fig. 2 is an enlarged schematic view of a structure at a in fig. 1.
Fig. 3 is an enlarged schematic view of the structure at B in fig. 1.
In the figure, 1, a connecting frame; 1a, a connecting part; 2. a tip; 3. a piston; 4. an oil storage chamber; 5. an oil pipe; 6. connecting sleeves; 6a, a convex ring; 7. a frame body; 8. a barrel; 8a, tooth pulling; 8b, an annular step; 8c, an operation hole; 9. a support ring; 9a, a positioning seat; 10. a seal ring; 11. a bearing; 12. an o-shaped ring; 13. and (4) screws.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the vertical driving mechanism for processing the gear mandrel comprises a connecting frame 1, wherein the upper part of the connecting frame 1 is a barrel-shaped connecting part 1a, and the connecting part 1a is vertically arranged.
In particular, the present invention relates to a method for producing,
the top wall of the connecting part 1a is provided with a circle of pulling teeth which are uniformly distributed along the circumferential direction of the connecting part 1 a; an apex 2 is vertically arranged in the connecting part 1a, the lower end of the apex 2 is an apex 2 rod part, the upper end of the apex 2 is a conical apex 2 head part, and the apex 2 head part extends out of the connecting part 1 a.
As shown in fig. 1, a piston 3 is slidably provided in the connecting portion 1a up and down, the piston 3 is located below the center 2, and an oil reservoir 4 is formed between the lower side of the piston 3 and the inner wall of the connecting portion 1 a. The bottom wall of the connecting part 1a is provided with an oil hole communicated with the oil storage cavity 4 in a penetrating mode, and the oil hole and the connecting part 1a are arranged coaxially. An oil pipe 5 is rotationally arranged in the oil hole, and a seal is formed between the outer wall of the oil pipe 5 and the inner wall of the oil hole; the upper side of the piston 3 is pressed with a connecting sleeve 6, the connecting sleeve 6 is connected with the connecting part 1a in a spline fit mode, the shape and the size of an inner hole of the connecting sleeve 6 are matched with the rod part of the tip 2, and the rod part of the tip 2 is inserted and fixed in the connecting sleeve 6.
In the present embodiment, it is preferred that,
the connecting frame 1 has the following structure: the connecting frame 1 comprises a frame body 7 and a cylinder body 8 vertically fixed on the frame body 7. Wherein, the upper end and the lower end of the cylinder body 8 are both open, and the gear-pulling is formed on the top wall of the cylinder body 8; an annular flange is formed on the outer wall of the cylinder body 8, the annular flange is pressed on the frame body 7, and the annular flange and the frame body are fixedly connected through bolts. A support ring 9 is fixed at the lower end of the cylinder 8 in a sealing manner, the support ring 9 and the cylinder 8 form the connecting part 1a, at this time, an inner hole of the support ring 9 is the oil hole, and the oil pipe 5 is rotatably arranged on the support ring 9; the piston 3, the cylinder 8 and the support ring 9 form the oil storage cavity 4, and the connecting sleeve 6 is in spline fit with the cylinder 8. By adopting the design, the assembly of each part is convenient.
Preferably, the support ring 9 and the barrel 8 are fixedly connected by welding, and further, the outer wall of the support ring 9 is provided with an annular groove, the annular groove and the support ring 9 are coaxially arranged, a seal ring 10 is arranged in the annular groove, and the outer side wall of the seal ring 10 abuts against the inner wall of the barrel 8, so that reliable sealing is formed between the support ring 9 and the barrel 8.
As shown in fig. 1 and 3, the oil pipe 5 is installed as follows: an annular positioning seat 9a is integrally formed on the bottom wall of the support ring 9, the positioning seat 9a is sleeved outside the oil pipe 5, and the positioning seat 9a is connected with the oil pipe 5 through a bearing 11. An annular mounting groove is formed in the outer side wall of the oil pipe 5, an o-shaped ring 12 is arranged in the mounting groove, the outer peripheral surface of the o-shaped ring 12 abuts against the inner wall of the oil hole, and reliable sealing is formed between the support ring 9 and the oil pipe 5.
Further, an annular step 8b is formed on the inner wall of the cylinder 8, the annular step 8b is composed of a step side wall and a step bottom wall, the connecting sleeve 6 is located in the annular step 8b, the connecting sleeve 6 is in spline fit with the step side wall, and the upper end of the connecting sleeve 6 is pressed on the step bottom wall to limit the upward moving distance of the tip 2, so that the tip is prevented from being separated from the step bottom wall, and the structural integrity of the whole vertical driving mechanism is guaranteed. Preferably, the top wall of the connecting sleeve 6 is integrally formed with a convex ring 6a, the convex ring 6a is sleeved outside the tip 2, the outer diameter of the convex ring 6a is smaller than the inner diameter of the side wall of the step, and the top wall of the convex ring 6a is pressed on the annular bottom wall.
As shown in fig. 1 and 2, the point 2 is positioned as follows: the convex ring 6a is provided with at least two mounting holes which are uniformly distributed along the circumferential direction of the connecting sleeve 6, each mounting hole is internally provided with a screw 13, and the head and the rod of each screw 13 are respectively tightly pressed on the convex ring 6a and the tip 2. The wall of the cylinder body 8 is radially penetrated with operation holes 8c, the number of the operation holes 8c is the same as that of the installation holes, and each operation hole 8c is opposite to the head of one screw 13. When the tool is used, the tool extends into the barrel 8 through the operation hole 8c to loosen or tighten the screw 13, the tip 2 can be independently dismounted by upwards pulling the tip 2 or downwards pressing the tip 2, and the operation is convenient. Preferably, the number of screws 13 is 2, and in this case, the number of mounting holes and operation holes 8c is 2.
In an actual product, a tooth socket matched with the tooth pulling is arranged on the end face of the mandrel; the vertical driving mechanism has the following use process: the connecting frame 1 is connected with the rotating mechanism and is driven to rotate by the rotating mechanism; the centre 2 is matched with a movable centre 2 which is positioned right above the centre and can move up and down to clamp the mandrel, at the moment, the tooth-pulling is inserted in the tooth socket to form circumferential matching between the connecting part 1a and the mandrel, so that the mandrel rotates along with the connecting frame 1; after the mandrel is machined, hydraulic oil is injected into the oil storage cavity 4 through the oil pipe 5, so that the center 2 moves upwards to jack up the mandrel; after the mandrel is taken down, a certain amount of hydraulic oil is pumped out from the oil storage cavity 4 through the oil pipe 5, so that the center 2 can smoothly move downwards under the jacking pressure of the mandrel.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Claims (9)
1. A vertical driving mechanism for gear mandrel machining comprises a connecting frame (1), wherein the upper portion of the connecting frame (1) is a barrel-shaped connecting portion (1a), the top wall of the connecting portion (1a) is provided with a gear drawing (8a), a tip (2) is vertically arranged in the connecting portion (1a), and the head of the tip (2) extends out of the connecting portion (1a), and is characterized in that a piston (3) is arranged in the connecting portion (1a) in a vertically sliding mode, an oil storage cavity (4) is formed between the lower side of the piston (3) and the inner wall of the connecting portion (1a), an oil hole communicated with the oil storage cavity (4) penetrates through the bottom wall of the connecting portion (1a), and the oil hole and the connecting portion (1a) are coaxially arranged; an oil pipe (5) is rotationally arranged in the oil hole, and a seal is formed between the outer wall of the oil pipe (5) and the inner wall of the oil hole; the upper side of the piston (3) is pressed with a connecting sleeve (6), the connecting sleeve (6) is connected with the connecting part (1a) in a spline fit mode, the shape and the size of an inner hole of the connecting sleeve (6) are matched with the rod part of the tip (2), and the rod part of the tip (2) is inserted and fixed in the connecting sleeve (6).
2. The vertical driving mechanism for gear mandrel processing according to claim 1, wherein the connecting frame (1) comprises a frame body (7) and a cylinder body (8) vertically fixed on the frame body (7), a support ring (9) is fixed at the lower end of the cylinder body (8) in a sealing manner, and the support ring (9) and the cylinder body (8) form the connecting part (1 a); the hole of support ring (9) is above-mentioned oilhole, and oil pipe (5) rotate to set up on support ring (9), forms foretell oil storage chamber (4) between piston (3), barrel (8) and support ring (9) three, and adapter sleeve (6) and barrel (8) spline fit.
3. The vertical driving mechanism for gear mandrel machining according to claim 2, characterized in that an annular step (8b) is formed on the inner wall of the cylinder (8), the annular step (8b) is composed of a step side wall and a step bottom wall, the connecting sleeve (6) is positioned in the annular step (8b), the connecting sleeve (6) is in spline fit with the step side wall, and the upper end of the connecting sleeve (6) is pressed on the step bottom wall.
4. The vertical driving mechanism for gear mandrel machining according to claim 3, characterized in that a convex ring (6a) is integrally formed on the top wall of the connecting sleeve (6), the convex ring (6a) is sleeved outside the center (2), the outer diameter of the convex ring (6a) is smaller than the inner diameter of the side wall of the step, and the top wall of the convex ring (6a) is pressed on the annular bottom wall.
5. The vertical driving mechanism for gear mandrel machining according to claim 4, characterized in that the protruding ring (6a) has at least two mounting holes radially penetrating through it, the mounting holes are uniformly distributed along the circumference of the connecting sleeve (6), each mounting hole has a screw (13), and the head and the rod of the screw (13) are respectively pressed against the protruding ring (6a) and the tip (2).
6. The vertical driving mechanism for gear mandrel processing according to claim 5, characterized in that the barrel (8) has radially through holes (8c), the number of the holes (8c) is the same as the number of the mounting holes, and each hole (8c) is opposite to the head of a screw (13).
7. The vertical driving mechanism for gear mandrel machining according to claim 2, characterized in that an annular groove is formed in the outer wall of the support ring (9), a sealing ring (10) is arranged in the annular groove, and the outer side wall of the sealing ring (10) abuts against the inner wall of the cylinder (8).
8. The vertical driving mechanism for gear spindle machining according to claim 2, characterized in that an annular mounting groove is formed in the outer side wall of the oil pipe (5), an o-shaped ring (12) is arranged in the mounting groove, and the outer peripheral surface of the o-shaped ring (12) abuts against the inner wall of the oil hole.
9. The vertical driving mechanism for gear mandrel processing according to claim 2, wherein the bottom wall of the supporting ring (9) is integrally formed with an annular positioning seat (9a), the positioning seat (9a) is sleeved outside the oil pipe (5), and the positioning seat (9a) and the oil pipe (5) are connected through a bearing (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122722752.7U CN216325639U (en) | 2021-11-08 | 2021-11-08 | Vertical driving mechanism for gear mandrel machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122722752.7U CN216325639U (en) | 2021-11-08 | 2021-11-08 | Vertical driving mechanism for gear mandrel machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216325639U true CN216325639U (en) | 2022-04-19 |
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ID=81135961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122722752.7U Active CN216325639U (en) | 2021-11-08 | 2021-11-08 | Vertical driving mechanism for gear mandrel machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216325639U (en) |
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2021
- 2021-11-08 CN CN202122722752.7U patent/CN216325639U/en active Active
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