CN220177942U

CN220177942U - Tail top mechanism

Info

Publication number: CN220177942U
Application number: CN202321705007.4U
Authority: CN
Inventors: 童兆军; 周路; 冯诗荣; 李雄杰
Original assignee: Guangdong Prosper Cnc Machine Co ltd
Current assignee: Guangdong Prosper Cnc Machine Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-12-15
Anticipated expiration: 2033-06-30

Abstract

The utility model relates to the technical field of spinning equipment, and discloses a tail top mechanism. The tail top mechanism comprises a tail top seat; the tail top seat is provided with an inner tail top and an outer tail top coaxially arranged outside the inner tail top; the outer tail top can axially stretch and retract relative to the inner tail top; a first tail top drive and a second tail top drive are arranged; the first tail top driving piece is arranged on the tail top seat and is in transmission connection with the outer tail top, so that the outer tail top can be driven to axially stretch and retract; the second tail top driving piece is in transmission connection with the tail top seat and can drive the tail top seat to move in the axial direction. The tail top mechanism can be suitable for spinning tail tops comprising complex curved surfaces, and has wide application range and high tail top precision.

Description

Tail top mechanism

Technical Field

The utility model relates to the technical field of spinning equipment, in particular to a tail top mechanism.

Background

In the spinning process of the spinning workpiece, the tail top can play a role in supporting and propping, provide a counter force for spinning, accelerate the spinning forming of the spinning workpiece and achieve a good spinning effect.

However, the conventional tail-end is usually a single tail-end, and has low applicability to spin forming of a spun work having a complex curved surface such as a stepped surface. Moreover, the tail top expansion and contraction amount of the existing tail top is generally difficult to intuitively judge, and the high-precision spinning is not guaranteed.

Disclosure of Invention

The utility model aims to solve the problems that the existing tail top has low applicability to complex curved surfaces and the tail top precision is difficult to guarantee, and provides a tail top mechanism. The tail top mechanism is provided with an inner tail top and an outer tail top which are coaxially arranged and can synchronously move along with the tail top seat, and the outer tail top can independently perform telescopic movement relative to the inner tail top, so that the application range is wide; and the rotation of the inner tail top is controlled to be set along with stop, and the deviation correction of the tail top seat is set, so that the tail top precision during operation is ensured.

The aim of the utility model is achieved by the following technical scheme.

A tail jack mechanism comprises a tail jack seat; the tail top seat is provided with an inner tail top and an outer tail top coaxially arranged outside the inner tail top; the outer tail top can axially stretch and retract relative to the inner tail top;

a first tail top drive and a second tail top drive are arranged; the first tail top driving piece is arranged on the tail top seat and is in transmission connection with the outer tail top, so that the outer tail top can be driven to axially stretch and retract; the second tail top driving piece is in transmission connection with the tail top seat and can drive the tail top seat to move in the axial direction.

As a preferred embodiment of the tail cap mechanism of the present utility model, the outer tail cap is coaxially disposed outside the inner tail cap by means of a bearing.

As a preferred embodiment of the tail jack mechanism of the present utility model, the length of the inner tail jack extending from the tail jack is longer than the length of the outer tail jack extending from the tail jack.

As a preferred embodiment of the tail cap mechanism of the present utility model, the first tail cap driving members are grouped into one group, and the first tail cap driving members at least comprise one group, and the two first tail cap driving members in the same group are oppositely arranged at two radial sides of the outer tail cap.

As a preferred embodiment of the tail jack mechanism of the present utility model, in any one of the above-mentioned tail jack mechanisms, a rotary driving member is further provided on the tail jack seat; the rotary driving piece is in transmission connection with the inner tail top and can drive the inner tail top to rotate.

As a further preferred embodiment of the tail cap mechanism of the present utility model, the rotary drive is drivingly connected to the inner tail cap by a clutch.

As a still further preferred embodiment of the tail-jack mechanism of the present utility model, the output end of the clutch is drivingly connected to the inner tail-jack by a gear assembly.

As a still further preferred embodiment of the tail jack mechanism of the present utility model, the gear drive assembly includes a driving gear and a driven gear, the driving gear is in driving connection with the output end of the clutch through a gear shaft, the driving gear is in meshing transmission with the driven gear, and the driven gear is in driving connection with the inner tail jack through a spindle core.

In a preferred embodiment of the roof tailing mechanism according to any one of the above aspects, a graphite copper sheath is disposed radially outward of the roof tailing seat.

As a further preferable embodiment of the tail top mechanism of the utility model, an adjusting inclined block is arranged on the outer side of the graphite copper sleeve, which is far away from the tail top seat, and the adjusting inclined block is in inclined-plane abutting connection with the graphite copper sleeve in the axial direction and promotes the graphite copper sleeve to abut against the tail top seat.

As a further preferable implementation mode of the tail top mechanism, an adjusting block is arranged on the tail top seat, and an adjusting hole and a limiting hole which are communicated along the axial direction are formed in the adjusting block; the adjusting piece can be assembled on the adjusting hole in an axially movable mode and is connected with the adjusting inclined block, and the limiting piece can be assembled on the limiting hole in an axially movable mode and limits radial displacement of the adjusting inclined block during working.

As a further preferable embodiment of the tail cap mechanism of the utility model, the regulating inclined block includes a first inclined block and a second inclined block which are sequentially arranged in the axial direction, and the first inclined block and the second inclined block respectively have a first inclined surface and a second inclined surface which are abutted against the graphite copper sleeve and have opposite inclined surfaces.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

the tail top mechanism provided by the utility model is provided with the inner tail top and the outer tail top which are coaxially arranged and can synchronously move along with the tail top seat, so that the tail top mechanism can be suitable for spinning tail tops comprising complex curved surfaces. And the outer tail top can independently carry out telescopic movement relative to the inner tail top, so that the outer tail top can be conveniently adjusted and used according to the spinning condition of the spinning curved surface, the telescopic quantity of the tail top can be conveniently and intuitively judged, and the application range is wider.

Wherein, the inner tail top can be driven by a configured rotary driving piece to rotate for auxiliary spinning; and the rotary driving piece is in transmission connection with the inner tail top by adopting a clutch, so that the rotation can be controlled to stop in time, the inertial rotation is avoided, and the effect of stopping at any time can be achieved.

In addition, the graphite copper sleeve is arranged on the outer side of the tail top seat, so that the tail top seat can slide smoothly on a machine tool, and the cost is low; and dispose the adjustment sloping block in the graphite copper sheathing outside, can convenient regulation tail footstock in radial displacement, avoid the long-term back graphite copper sheathing by wearing and tearing and lead to the circumstances of tail footstock radial deviation to ensure tail top precision.

Drawings

FIG. 1 is a schematic perspective view of a tail jack mechanism according to the present utility model in an embodiment;

FIG. 2 is a schematic view of the arrangement of the inner and outer roof tails;

FIG. 3 is a schematic perspective view of a tail jack mechanism with a rotary drive according to one embodiment of the present utility model;

FIG. 4 is a schematic view of the arrangement of the drive connection of the rotary drive member to the inner tail roof;

FIG. 5 is a schematic side view of a tail top mechanism with an adjustment ramp according to an exemplary embodiment of the present utility model;

fig. 6 is a schematic top view of a tail top mechanism with an adjusting swash block according to the present utility model in an embodiment.

The drawings are marked:

the machine tool comprises a 1-tail top seat, a 101-avoidance hole, a 2-inner tail top, a 3-outer tail top, a 4-first tail top driving piece, a 5-fixing seat, a 6-second tail top driving piece, a 7-bearing, an 8-rotation driving piece, a 9-gear transmission assembly, a 91-driving gear, a 92-spindle key, a 10-clutch, a 11-gear shaft lever, a 12-spindle core, a 13-graphite copper sleeve, a 14-first inclined block, a 15-second inclined block, a 16-adjusting block and a 17-machine tool.

Detailed Description

The technical scheme of the present utility model is described in further detail below with reference to specific examples and drawings, but the scope and embodiments of the present utility model are not limited thereto.

In the description of the specific embodiments, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "top", "bottom", "axial", "radial", etc., are directions or positional relationships based on those shown in the drawings, or those in which the inventive product is conventionally put in use, and terms such as "first", "second", etc., are merely for convenience in describing the present utility model and for simplifying the description, and do not indicate or imply that the structures or elements to be referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the utility model, nor should they be construed as indicating or implying relative importance.

Unless specifically stated or limited otherwise, the terms "mounted," "configured," "connected," "secured," and the like should be construed broadly, as they may be either fixedly connected, detachably connected, or integrally formed; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

The tail top mechanism is a double-tail top mechanism, can be used for spinning forming of a complex curved surface spinning workpiece with a stepped surface, and realizes high-quality spinning forming of the complex curved surface spinning workpiece.

Specifically, referring to fig. 1, the tail jack mechanism includes a tail jack 1, and an inner tail jack 2 and an outer tail jack 3 are disposed on the tail jack 1. The outer tail top 3 is coaxially arranged outside the inner tail top 2, and for example, can be concentrically sleeved on the inner tail top 2.

The inner tail roof 2 and the outer tail roof 3 have extension lengths, the length extension directions of the inner tail roof 2 and the outer tail roof 3 are defined as axial directions, the directions intersecting with the axial directions are radial directions or width directions, and the directions rotating around the axial axes are circumferential directions.

In a preferred embodiment, the axial extension of the inner aft roof 2 with respect to the aft roof seat 1 is greater than the extension of the outer aft roof 3 with respect to the aft roof seat 1, such that a stepped surface is formed in the axial direction between the end face of the inner aft roof 2 and the end face of the outer aft roof 3. In the particular embodiment shown, the inner roof 2 may be embodied as a solid long shaft and the outer roof 3 may be embodied as a cylinder with a hollow shaft bore.

The inner tail top 2 and the outer tail top 3 are arranged on the tail top seat 1 to synchronously move along with the tail top seat 1, and the inner tail top 2 and the outer tail top 3 are specifically arranged to relatively move along the axial direction. In the preferred embodiment, the inner caudal peduncle 2 is fixedly arranged relative to the caudal peduncle 1 in the axial direction, and can rotate relative to the caudal peddle 1 in the circumferential direction; the outer tail top 3 is movably arranged, and the outer tail top 3 can axially stretch and retract relative to the inner tail top 2 and the tail top seat 1.

In a preferred embodiment, as shown in fig. 2, a bearing 7 is assembled between the outer tail top 3 and the inner tail top 2, so that the outer tail top 3 is disposed outside the inner tail top 2 in a coaxial manner and spaced apart from the inner tail top 2, and can slide and move smoothly in the axial direction relative to the inner tail top 2, and meanwhile, the inner tail top 2 can rotate smoothly relative to the outer tail top 3.

When the tail jack operation is carried out, the independent single tail jack operation can be carried out by the inner tail lamp 2 which relatively extends out of the outer tail jack 3, or the double tail jack operation can be carried out by the inner tail jack 2 and the outer tail jack 3 at the same time, wherein the inner tail jack 2 and the outer tail jack 3 respectively support spinning supporting surfaces with small diameter and large diameter. In addition, during the tail top operation, the outer tail top 3 can be axially adjusted according to the requirement, so as to meet different tail top operation requirements and realize good tail top effect.

In another preferred embodiment, the tail cap mechanism is further provided with a first tail cap driving member 4 and a second tail cap driving member 6, wherein the first tail cap driving member 4 can drive the outer tail cap 3 to move axially relative to the inner tail cap 2 independently, and the second tail cap driving member 6 can drive the tail cap seat 1 to move axially and drive the inner tail cap 2 and the outer tail cap 3 to move synchronously in the axial direction.

Specifically, the first tail top driving member 4 is disposed on the tail top seat 1, and in the illustrated embodiment, the first tail top driving member 4 may be, but not limited to, an oil cylinder and has an output end driven by telescopic motion along an axial direction, and the output end of the first tail top driving member 4 is in driving connection with the outer tail top 3, so that the outer tail top 3 can be driven to move telescopically relative to the inner tail top 2 in the axial direction when the output end of the first tail top driving member 4 performs driving motion. The first tail top driving piece 4 is installed on the outer surface of the tail top seat 1 through the fixing seat 5, so that the first tail top driving piece 4 is convenient to disassemble and assemble while driving stability is guaranteed, and the tail top expansion and contraction amount of the outer tail top 3 can be more intuitively judged through the expansion and contraction amount of the first tail top driving piece 4.

In the preferred embodiment, the first tail cap drivers 4 are grouped in two, and the first tail cap drivers 4 comprise at least one group, with the two first tail cap drivers 4 of the same group being disposed on opposite radial sides of the outer tail cap 3. In the specific embodiment shown, the first tail top driving members 4 comprise two tail top driving members 4 which are arranged left and right, and the two first tail top driving members 4 can synchronously drive the outer tail top 3 to move telescopically in the axial direction. Thus, the outer roof 3 is stably moved in the axial direction to expand and contract.

The second tail top driving member 6 is specifically disposed outside the tail top seat 1 opposite to the tail top seat 1 and is in transmission connection with the tail top seat 1, so as to drive the tail top seat 1 to move in the axial direction, and further drive the tail top seat 1 and the inner tail top 2 and the outer tail top 3 disposed on the tail top seat 1 to move in the axial direction synchronously. Specifically, the second top-tail driving member 6 is optional but not limited to an oil cylinder, and the telescopic axis of the oil cylinder is consistent with the axial direction of the top-tail, as in the illustrated embodiment, the bottom of the top-tail seat 1 is axially provided with a avoidance space 101 adapted to the second top-tail driving member 6, the second top-tail driving member 6 axially penetrates into the avoidance space 101, and the output end of the second top-tail driving member is connected with the bottom of the top-tail seat 1, so that the top-tail seat 1 can be driven to move stably in the axial direction.

Example two

In the tail jack mechanism of the present embodiment, as shown in fig. 3, a rotary driving member 8 is further disposed on the tail jack seat 1. The rotary driving piece 8 is in transmission connection with the inner tail top 2 and can drive the inner tail top 2 to rotate, auxiliary spinning is carried out at the same time of the tail top, and the working condition application range is wide.

In a preferred embodiment, the rotary drive 8 is optionally, but not limited to, a hydraulic motor. The output end of the rotary drive 8 is connected with the inner tail top 2 in a transmission way through a clutch 10. When the rotary driving piece 8 carries out rotary transmission, the clutch 10 can timely transmit kinetic energy; when the rotation driving part 8 stops driving, the clutch 10 can rapidly stop driving and avoid inertial rotation, so that the rotation stopping can be controlled in time, and the effect of stopping at any time can be achieved.

In a further preferred embodiment, the output of the clutch 10 is in driving connection with the inner tail boom 2 via a gear assembly 9, wherein the gear assembly 9 is optionally but not limited to a reduction gear set of more than one stage, enabling a variable transmission of torque.

Specifically, referring to fig. 4, the output end of the clutch 10 is connected with a gear shaft 11 through a coupling, and the gear assembly 9 includes a driving gear 91 and a driven gear; the driving gear 91 is concentrically sleeved on one end of the gear shaft 11 far away from the clutch 10 and is in transmission connection with the output end of the clutch 10 through the gear shaft 11, the input end of the inner tail top 2 is linked with the main shaft core 12, the driving gear 91 is in meshed transmission with the driven gear, the driven gear is in transmission connection with the input end of the inner tail top 2 through the main shaft core 12, and in an alternative embodiment, a main shaft key 92 is concentrically sleeved on one end of the main shaft core 12 far away from the inner tail top 2, wherein the driven gear is arranged on the main shaft key 92. Thus, the rotation driving element 8 realizes the variable speed transmission of torque by the gear transmission action of the gear transmission assembly 9 when the rotation transmission is performed.

Example III

In the tail jack mechanism of this embodiment, as shown in fig. 5 and 6, a graphite copper sleeve 13 is disposed radially outside the tail jack 1. Specifically, the graphite copper bush 13 is fixedly installed radially outside the bottom of the aft footstock 1. When the tail top mechanism is installed on the machine tool 17, the graphite copper sleeve 13 replaces a sliding rail to serve as a sliding guide medium, so that sliding smoothness is improved, and cost is low.

Example IV

Referring to fig. 5 and 6, in the tail top mechanism of the present embodiment, an adjusting inclined block is disposed on the outer side of the graphite copper sleeve 13 facing away from the tail top seat 1.

The outer side surface of the graphite copper sleeve 13, which is close to the adjusting inclined block, is an inclined surface, the inner side surface of the adjusting inclined block is an inclined surface which is matched with the adjusting inclined block in a mutually corresponding manner, specifically an inclined surface with the outer diameter gradually increasing from back to front, the adjusting inclined block is matched with the graphite copper sleeve 13 in an abutting manner through the inclined surface in the axial direction, and the outer side of the adjusting inclined block, which is away from the graphite copper sleeve 17, is a plane. The adjusting inclined block can move in the axial direction relative to the graphite copper sleeve 13, and can be mutually expanded and separated relative to the graphite copper sleeve 13 in the radial direction due to the abutting and matching action of the inclined surfaces during the relative movement.

Thus, when the rear roof seat 1 is assembled on the machine tool 17, the outer side plane of the adjusting inclined block is closely abutted against the assembling side plane of the machine tool 17, and the inner side inclined plane is abutted against and matched with the outer side inclined plane of the graphite copper sleeve 13 on the rear roof seat 1. After the graphite copper sleeve 13 is worn out after long-term use, the inclined plane fit outer diameter of the inner inclined plane of the adjusting inclined block and the outer inclined plane of the graphite copper sleeve 13 is increased by axially moving the adjusting inclined block, so that the adjusting inclined block keeps tensioning between the graphite copper sleeve 13 and the assembling side plane of the machine tool 17, the position of the tail top seat 1 is further kept fixed in the radial direction and is not deviated, the situation that the graphite copper sleeve 13 is worn out after long-term use and the tail top seat 1 is deviated in the radial direction is avoided, and the tail top precision during spinning operation is ensured.

In a preferred embodiment, the tailstock 1 is provided with an adjusting block 16, and specifically, the adjusting block 16 is disposed outside the axial end of the tailstock 1 and corresponds to the adjusting inclined block. The adjusting block 16 is provided with an adjusting hole and a limiting hole which are communicated along the axial direction; and an adjusting part and a limiting part are arranged and are respectively used for adjusting, driving, adjusting and limiting the adjusting inclined block.

The adjusting piece is optionally but not limited to a screw, can be assembled on the adjusting hole in an axially movable mode and is connected with the adjusting inclined block, and the adjusting inclined block can be radially ejected or pulled back to be retracted by axially driving the adjusting piece. The limiting piece is selectable but not limited to a screw, a corresponding screw hole can be formed in the adjusting inclined block, the limiting piece can be axially movably assembled on the limiting hole, and when the adjusting inclined block is radially moved and adjusted in place, the limiting piece can be in threaded locking with the screw hole in the adjusting inclined block, and limiting of radial displacement of the adjusting inclined block is achieved.

In a further preferred embodiment, the adjustment ramps may be provided in axial number to achieve an overall balanced adjustment of the radial displacement of the footstock 1 in use. As shown in the specific embodiment, referring to fig. 5 and 6, the adjusting inclined block includes a first inclined block 14 and a second inclined block 15 sequentially arranged in the axial direction, where the first inclined block 14 and the second inclined block 15 respectively correspond to the axial front end and the axial rear end of the footstock 1, and the first inclined block 14 and the second inclined block 15 respectively have a first inclined plane and a second inclined plane that abut against the graphite copper sleeve 13 and have opposite inclined planes, and when the radial displacement of the footstock 1 is adjusted, the first inclined block 14 and the second inclined block 15 respectively push forward and backward and inwards, and the radial displacement of the footstock 1 is adjusted from the rear end and the front end, so as to ensure the balance of the radial displacement adjustment of the footstock 1.

The above embodiments are merely preferred embodiments of the present utility model and only the technical solutions of the present utility model have been described in further detail, but the above description is illustrative, not exhaustive, and is not limited to the disclosed embodiments, the scope and implementation of the present utility model are not limited thereto, and any changes, combinations, deletions, substitutions or modifications made without departing from the spirit and principles of the present utility model are included in the scope of the present utility model.

Claims

1. The tail jack mechanism is characterized by comprising a tail jack seat; the tail top seat is provided with an inner tail top and an outer tail top coaxially arranged outside the inner tail top; the outer tail top can axially stretch and retract relative to the inner tail top;

2. The tail cap mechanism of claim 1, wherein the outer tail cap is coaxially disposed about the inner tail cap by a bearing.

3. The tail jack mechanism of claim 1, wherein the length of the inner tail jack extending from the tail jack is greater than the length of the outer tail jack extending from the tail jack.

4. The tail jack mechanism of claim 1, wherein the tail jack is further provided with a rotary drive; the rotary driving piece is in transmission connection with the inner tail top and can drive the inner tail top to rotate.

5. The tail cap mechanism of claim 4, wherein the rotary drive is drivingly connected to the inner tail cap via a clutch.

6. The tail jack mechanism of claim 5, wherein the output of the clutch is drivingly connected to the inner tail jack via a gear assembly.

7. The tail jack mechanism of claim 6, wherein the gear assembly includes a drive gear in driving communication with the output of the clutch via a gear shaft and a driven gear in meshed driving communication with the driven gear, the driven gear in driving communication with the inner tail jack via a spindle core.

8. The tail cap mechanism of any of claims 1-7, wherein a graphite copper sleeve is disposed radially outward of the tail cap seat.

9. The tail jack mechanism of claim 8, wherein an adjusting inclined block is arranged on the outer side of the graphite copper sleeve, which is away from the tail jack seat, and the adjusting inclined block is in inclined plane fit with the graphite copper sleeve in the axial direction;

the adjusting inclined block can move relative to the graphite copper sleeve in the axial direction, and the adjusting inclined block which moves relative to the graphite copper sleeve in the axial direction can expand outwards relatively in the radial direction through inclined surface matching.

10. The tail jack mechanism of claim 9, wherein the tail jack seat is provided with an adjusting block, and the adjusting block is provided with an adjusting hole and a limiting hole which are communicated along the axial direction; the adjusting piece can be assembled on the adjusting hole in an axially movable mode and is connected with the adjusting inclined block, and the limiting piece can be assembled on the limiting hole in an axially movable mode and limits radial displacement of the adjusting inclined block during working.