CN113059375A

CN113059375A - Clamping platform for mechanical shaft sleeve production and using method thereof

Info

Publication number: CN113059375A
Application number: CN202110225669.0A
Authority: CN
Inventors: 裘艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-07-02

Abstract

The invention discloses a clamping platform for mechanical shaft sleeve production and a using method thereof, and relates to the technical field of shaft sleeve production, and the clamping platform comprises a clamping seat, wherein a pressing plate capable of sliding up and down is arranged on the inner side of the clamping seat, a control rod for controlling the pressing plate to slide is arranged at the upper end of the pressing plate, and supporting plates are obliquely arranged at two corners of the inner side of the clamping seat; the adjustable shaft sleeve clamping device is characterized in that an isosceles trapezoid groove is formed in the bottom of the inner sides of the two supporting plates and the clamping seat, a placing cavity for placing the supporting plates is formed in the bottom of the inner side of the clamping seat, and the centers of the two sides of the supporting plates are rotatably arranged on the side wall of the placing cavity.

Description

Clamping platform for mechanical shaft sleeve production and using method thereof

Technical Field

The invention relates to the technical field of shaft sleeve production, in particular to a clamping platform for mechanical shaft sleeve production and a using method thereof.

Background

The shaft sleeve is a cylindrical mechanical part sleeved on the rotating shaft and is a component of the sliding bearing. Typically, the sleeve is an interference fit with the bearing seat and a clearance fit with the shaft.

When the shaft sleeve is machined, the outer circle is generally machined first, and then an inner hole is machined by taking the outer circle as a fine reference. Generally, the chuck has larger installation error, so that the mutual position precision of the processed workpieces is lower. If the coaxiality error is to be small, clamps with high centering precision, such as an elastic diaphragm chuck, a liquid plastic chuck, a polished three-jaw self-centering chuck, a soft jaw and the like, need to be adopted, and therefore the coaxiality error is large due to the centering error of the common clamps.

And in addition, during processing, the clamping force is larger, so that the hollow shaft sleeve is easy to deform under the action of the clamping force of the clamping part of the shaft sleeve, the subsequent processing of the shaft sleeve is influenced, and even the shaft sleeve is scrapped.

Disclosure of Invention

The invention aims to provide a clamping platform for producing a mechanical shaft sleeve and a using method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a clamping platform for mechanical shaft sleeve production comprises a clamping seat, wherein a pressing plate capable of sliding up and down is arranged on the inner side of the clamping seat, a control rod used for controlling the pressing plate to slide is arranged at the upper end of the pressing plate, and supporting plates are obliquely arranged at two corners of the inner side of the clamping seat;

two the inboard bottom of backup pad and holder forms an isosceles trapezoid's recess, the chamber of placing that is used for placing the backup pad is offered to the inboard bottom of holder, the both sides center of backup pad is rotated and is installed the lateral wall of placing the chamber.

Preferably, the centers of two sides of the supporting plate are fixedly provided with rotating shafts, and the bottom of the supporting plate is rotatably provided with a supporting ring through the rotating shafts;

the side wall of the placing cavity is provided with a shaft hole for mounting a rotating shaft;

the bottom of the placing cavity is of an arc structure with the same radian as the support ring;

the support ring is provided with evenly distributed fixing holes, and the side wall of the placing cavity is provided with fixing bolts matched with the fixing holes.

Preferably, a baffle plate for preventing the support plate from sliding out is fixedly arranged on the inner side of the top of the placing cavity.

Preferably, the control rod is a lead screw, and the lead screw penetrates through the top of the clamping seat and is connected with the top through threads;

the bottom fixed mounting of lead screw has solid fixed ring, gu fixed ring rotates with the clamp plate to be connected.

Preferably, the control rod is a hydraulic rod installed on the top of the clamping seat.

Preferably, a supporting seat is arranged at the rear side of the clamping seat.

Preferably, the bottom of grip slipper has seted up the mounting groove, the inside rotation of mounting groove installs the second lead screw, bottom one side of supporting seat is provided with can be in the gliding slide of mounting groove, the screw hole that is used for installing the second lead screw is seted up at the middle part of slide.

Preferably, the supporting seat is of a cuboid frame structure, a plurality of supporting blocks are mounted at the bottom of the inner side of the supporting seat, and the upper ends of the supporting blocks are provided with the plug-in shafts;

a clamping plate which slides up and down is arranged at the upper part of the inner side of the supporting seat;

the bottom of the clamping plate is provided with a V-shaped groove for compressing the plug-in shaft.

Preferably, the rear side of the V-shaped groove is fixedly provided with a baffle plate which is propped against the tail part of the insertion shaft.

Preferably, the inner side wall of the supporting seat is provided with a sliding groove for placing the clamping plate and the supporting block, the supporting block is positioned at the bottom of the sliding groove, and the clamping plate is positioned at the upper part of the sliding groove;

the middle part of the chute is provided with an opening for conveniently placing and taking out the supporting block.

Preferably, the upper side of the supporting block positioned at the uppermost part is fixedly provided with a bearing block, and the upper end of the bearing block is a groove in an isosceles trapezoid structure or a groove in a V-shaped structure.

The shaft sleeve clamping method adopting the clamping platform for mechanical shaft sleeve production comprises the following steps:

s1, when a shaft sleeve is machined, firstly, adjusting the angle of the supporting plates by using the supporting rings according to the diameter of the shaft sleeve to enable the two supporting plates and the bottom of the inner side of the clamping seat to form an isosceles trapezoid groove, and then installing the shaft sleeve in the groove of the clamping seat;

s2, the shaft sleeve is pressed downwards by using a control rod, so that the shaft sleeve can be fixed;

s3, the height of the inserting shaft is adjusted by the aid of the supporting blocks, the inserting shaft is inserted into an inner hole of the shaft sleeve by rotating the second lead screw, and the inserting shaft can support the clamping position of the shaft sleeve to prevent the shaft sleeve from deforming under pressure.

Compared with the prior art, the invention has the beneficial effects that:

1. the adjustable support plate is arranged, so that the angle of the support plate can be adjusted according to shaft sleeves with different diameters, the adjustable support plate is suitable for shaft sleeves with different sizes, the grooves with the trapezoidal structures play a centering role for the shaft sleeves, and the center deviation of the shaft sleeves during clamping can be avoided.

2. Through setting up supporting seat, cardboard and playing the supporting role to the afterbody of axle sleeve, can prevent to lead to the axle sleeve to drop from the grip slipper when the axle sleeve front end receives backward extrusion force.

3. Through setting up the grafting axle, can peg graft the grafting axle in the hole of axle sleeve, can prevent to appear because the too big condition of axle sleeve deformation that leads to of clamping-force appears.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a clamping base according to the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 4 is a schematic structural view of example 2 of the present invention;

FIG. 5 is a rear view of the support base of the present invention;

FIG. 6 is a schematic structural view of the support base of the present invention.

In the figure: 1. a clamping seat; 2. a control lever; 21. a fixing ring; 3. pressing a plate; 4. a support plate; 41. a rotating shaft; 5. a support ring; 51. a fixing hole; 52. fixing the bolt; 6. a supporting seat; 61. an opening; 62. a chute; 7. a plug shaft; 8. a support block; 9. a second lead screw; 10. a slide plate; 11. a placement chamber; 12. mounting grooves; 13. clamping a plate; 131. a V-shaped groove; 15. and a shaft sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-6, the present embodiment provides a clamping platform for producing a mechanical shaft sleeve, including a clamping seat 1, a shaft sleeve 15 to be processed is placed on an inner side of the clamping seat 1, a pressing plate 3 capable of sliding up and down is disposed on the inner side of the clamping seat 1, the pressing plate 3 presses an upper end of the shaft sleeve 15, and a downward pressure is applied to the shaft sleeve 15;

the upper end of clamp plate 3 is provided with and is used for controlling the gliding control lever 2 of clamp plate 3, and control lever 2 is used for controlling clamp plate 3 up-and-down motion, still provides decurrent pressure to clamp plate 3 simultaneously for clamp plate 3 compresses tightly the effect better to the axle sleeve.

Two corners of the inner side of the clamping seat 1 are provided with supporting plates 4 in an inclined manner; backup pad 4 is used for the bottom of grafting axle sleeve, and two backup pads 4 and clamp plate 3 form 360 degrees centre gripping with the axle sleeve joint in the centre to the axle sleeve, play the rental of centering to the axle sleeve for the centre gripping is more stable.

In this embodiment, referring to fig. 1, two grooves in the shape of an isosceles trapezoid are formed at the bottom of the inner sides of the supporting plate 4 and the clamping seat 1, so that the same inclination angle of the supporting plate 4 can be ensured, which is beneficial to aligning the axis of the shaft sleeve and is convenient for subsequent processing operations.

The inboard bottom of grip slipper 1 is seted up and is used for placing the chamber 11 of placing of backup pad 4, the both sides center of backup pad 4 rotates and installs the lateral wall of placing chamber 11.

In this embodiment, the center of the two sides of the supporting plate 4 is fixedly provided with a rotating shaft 41, the inner side wall of the placing cavity 11 is provided with a shaft hole for installing the rotating shaft 41, the rotating shaft 41 can rotate in the shaft hole, and the supporting plate 4 is supported while the rotating shaft provides a rotating center for the supporting plate 4.

Referring to fig. 1 and 3, the bottom of the supporting plate 4 is rotatably provided with a supporting ring 5 through a rotating shaft, the bottom of the placing cavity 11 is provided with an arc structure with the same radian as the supporting ring, the supporting ring 5 can slide at the bottom of the placing cavity 11, and the bottom of the supporting plate 4 rotates around the rotating shaft 41 by controlling the supporting ring 5, so that the angle of the supporting plate 4 can be adjusted.

Wherein, the support ring 5 uses the rotating shaft 41 as a rotating center, so that the rotating center of the support ring 5 coincides with the rotating center of the support plate 4, and the inclination angle of the support plate 4 can be adjusted more conveniently.

Moreover, the support ring 5 is provided with fixing holes 51 which are uniformly distributed, and the side wall of the placing cavity 11 is provided with fixing bolts 52 which are matched with the fixing holes 51, as shown in fig. 3, the support ring 5 can slide at the bottom of the placing cavity 11 through the connection of different fixing holes 51 and fixing bolts 52, so that the adjustment of the support plate 4 is facilitated.

In order to make the adjustment angles of the two support plates 4 the same, the fixing holes 51 of the two support rings 5 are arranged the same, and whether the angles of the support plates 4 are the same can be determined according to the number of the exposed fixing holes 51 of the support rings 5 when adjusting the support plates 4, and if the number of the exposed fixing holes 51 is the same, it indicates that the inner inclination angles of the support plates 4 are the same.

Wherein, place the inboard fixed mounting in top of chamber 11 and have the baffle that prevents backup pad 4 roll-off for prevent that backup pad 4 from droing from placing chamber 11, improve backup pad 4's stability.

In this embodiment, as shown in fig. 1 and fig. 2, the control rod 2 may be a lead screw, and when the control rod 2 is a lead screw, and the lead screw penetrates through the top of the clamping seat 1 and is connected with the top through a thread; the bottom fixed mounting of lead screw has solid fixed ring 21, gu fixed ring 21 rotates with clamp plate 3 to be connected. By rotating the screw rod, the screw rod can drive the pressing plate 3 to move up and down under the action of the threads.

Of course, the control rod 2 may also be a hydraulic rod or a pneumatic rod, and the hydraulic rod or the pneumatic rod is installed on the top of the clamping seat 1, and the hydraulic rod or the pneumatic rod makes the up-and-down movement of the pressing plate 3 more flexible.

Example 2

Further improvement is made on the basis of the embodiment 1:

referring to fig. 4, the supporting seat 6 is disposed at the rear side of the clamping seat 1, and the supporting seat 6 shields the rear portion of the shaft sleeve 15, so as to prevent the shaft sleeve 15 from falling off from the groove due to excessive front stress when the shaft sleeve 15 is processed.

In order to make the regulation of supporting seat 6 more convenient, increase the stability of supporting seat 6 simultaneously, mounting groove 12 has been seted up to the bottom of grip slipper 1, second lead screw 9 is installed to mounting groove 12 internal rotation, bottom one side of supporting seat 6 is provided with can be at gliding slide 10 in mounting groove 12, the lead screw hole that is used for installing second lead screw 9 is seted up at the middle part of slide 10, under the effect of second lead screw 9, rotates second lead screw 9 and can make supporting seat 6 be at the horizontal motion of mounting groove 12 to make supporting seat 6 be close to or keep away from grip slipper 1.

In a further embodiment, when the shaft sleeve is machined, in order to prevent the deformation of the clamping position of the shaft sleeve, the supporting seat 6 is of a cuboid frame structure, a plurality of supporting blocks 8 are installed at the bottom of the inner side of the supporting seat 6, the inserting shaft 7 is placed at the upper end of each supporting block 8, when the shaft sleeve 15 is clamped, the shaft sleeve 15 can be initially positioned, then the inserting shaft 7 is inserted into the inner hole of the shaft sleeve 15, the inserting shaft 7 plays a supporting role in the inner hole of the shaft sleeve 15, and the deformation of the shaft sleeve 15 caused by the overlarge clamping force is prevented.

The diameter of the inner hole of the insertion shaft 7 is the same as that of the inner hole of the shaft sleeve 15, so that the insertion shaft 7 is just inserted into the inner hole of the shaft sleeve, and a better supporting effect is achieved on the shaft sleeve 15.

Also in this embodiment, the diameter of the plug shaft 7 may be selected according to the size of the inner bore of the boss 15.

The plug shaft 7 is of a common cylindrical structure and can be directly machined to a required diameter on a lathe. The plug shaft 7 can be made of waste material left by machining, in order to save raw material.

As shown in fig. 4-6, a clamping plate 13 which slides up and down is arranged at the upper part of the inner side of the supporting seat 6; the clamping plate 13 is used for pressing the upper end of the plug shaft 7 and can play a role in pressing the plug shaft under the action of the supporting block 8.

In order to make the joint of the plug spindle 7 more stable, the bottom of the clamping plate 13 is provided with a V-shaped groove 131 for compressing the plug spindle 7, the side wall of the V-shaped groove 131 has two supporting points for the outer side of the plug spindle 7, and the fixing effect on the plug spindle 7 is better.

In order to prevent the shaft sleeve 15 from sliding towards the rear side, a baffle plate which is abutted against the tail part of the plug shaft 7 is fixedly arranged at the rear side of the V-shaped groove 131, and the baffle plate prevents the shaft sleeve 15 from sliding towards the rear side and plays a role in fixing the shaft sleeve 15.

In order to facilitate the placement of the snap-gauge 13 and the supporting block 8, as shown in fig. 6, a sliding groove 62 for placing the snap-gauge 13 and the supporting block 8 is formed in the inner side wall of the supporting seat 6, and the sliding groove 62 provides a sliding space for the snap-gauge 13.

As shown in fig. 5 and 6, the supporting block 8 is located at the bottom of the sliding groove 62, and the card board 13 is located at the upper part of the sliding groove 62; an opening 61 for facilitating placement and removal of the supporting block 8 is formed in the middle of the sliding groove 62, and the supporting block 8 can be removed from the opening 61 for replacement when being replaced.

In order to facilitate the placement of the plug shaft 7 and the positioning of the plug shaft 7, the plug shaft 7 is aligned with the center of the shaft sleeve 15 better, the upper side of the supporting block 8 which is positioned at the top is fixedly provided with a bearing block, the upper end of the bearing block is a groove in an isosceles trapezoid structure or a groove in a V-shaped structure, the center of the groove of the bearing block and the center of the groove of the clamping plate are positioned on the same straight line, so that the shaft center of the plug shaft 7 after the installation is positioned on the same straight line with the shaft center of the shaft sleeve 15, and the plug shaft 7 is convenient to be installed in the inner hole of the shaft sleeve 15.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a clamping platform is used in production of mechanical axle sleeve, includes grip slipper (1), its characterized in that: a pressing plate (3) capable of sliding up and down is arranged on the inner side of the clamping seat (1), a control rod (2) used for controlling the pressing plate (3) to slide is arranged at the upper end of the pressing plate (3), and supporting plates (4) are obliquely arranged at two corners of the inner side of the clamping seat (1);

two the inboard bottom of backup pad (4) and holder (1) forms an isosceles trapezoid's recess, the inboard bottom of holder (1) is offered and is used for placing chamber (11) of backup pad (4), the both sides center of backup pad (4) is rotated and is installed the lateral wall of placing chamber (11).

2. The mechanical shaft sleeve production clamping platform of claim 1, characterized in that: the centers of two sides of the supporting plate (4) are fixedly provided with rotating shafts (41), and the bottom of the supporting plate (4) is rotatably provided with a supporting ring (5) through the rotating shafts;

the side wall of the placing cavity (11) is provided with a shaft hole for mounting the rotating shaft (41);

the bottom of the placing cavity (11) is of an arc structure with the same radian as the support ring;

the support ring (5) is provided with fixing holes (51) which are uniformly distributed, and the side wall of the placing cavity (11) is provided with fixing bolts (52) matched with the fixing holes (51).

3. The mechanical shaft sleeve production clamping platform of claim 2, wherein: a baffle plate for preventing the support plate (4) from sliding out is fixedly arranged on the inner side of the top of the placing cavity (11).

4. The mechanical shaft sleeve production clamping platform of claim 3, wherein: the control rod (2) is a lead screw, and the lead screw penetrates through the top of the clamping seat (1) and is connected with the top through threads;

the bottom fixed mounting of lead screw has solid fixed ring (21), gu fixed ring (21) is connected with clamp plate (3) rotation.

5. The mechanical shaft sleeve production clamping platform of claim 3, wherein: the control rod (2) is a hydraulic rod arranged on the top of the clamping seat (1).

6. The clamping platform for producing the mechanical shaft sleeve as claimed in claim 4 or 5, wherein: the rear side of the clamping seat (1) is provided with a supporting seat (6).

7. The mechanical shaft sleeve production clamping platform of claim 6, wherein: mounting groove (12) have been seted up to the bottom of grip slipper (1), second lead screw (9) are installed in mounting groove (12) internal rotation, bottom one side of supporting seat (6) is provided with gliding slide (10) in mounting groove (12), the screw hole that is used for installing second lead screw (9) is seted up at the middle part of slide (10).

8. The mechanical shaft sleeve production clamping platform of claim 7, wherein: the supporting seat (6) is of a cuboid frame structure, a plurality of supporting blocks (8) are mounted at the bottom of the inner side of the supporting seat (6), and the upper ends of the supporting blocks (8) are provided with plug shafts (7);

a clamping plate (13) which slides up and down is arranged at the upper part of the inner side of the supporting seat (6);

the bottom of the clamping plate (13) is provided with a V-shaped groove (131) for compressing the plug-in shaft (7).

9. The mechanical shaft sleeve production clamping platform of claim 8, wherein: and a baffle plate abutting against the tail part of the plug-in shaft (7) is fixedly arranged at the rear side of the V-shaped groove (131).

10. The mechanical shaft sleeve production clamping platform of claim 9, wherein: the inner side wall of the supporting seat (6) is provided with a sliding groove (62) for placing a clamping plate (13) and a supporting block (8), the supporting block (8) is located at the bottom of the sliding groove (62), and the clamping plate (13) is located at the upper part of the sliding groove (62);

the middle part of the sliding groove (62) is provided with an opening (61) which is used for placing and taking out the supporting block (8) conveniently.

11. The mechanical shaft sleeve production clamping platform of claim 9, wherein: the upper side of the supporting block (8) positioned at the uppermost part is fixedly provided with a bearing block, and the upper end of the bearing block is a groove of an isosceles trapezoid structure or a groove of a V-shaped structure.

12. A method of clamping a sleeve using a clamping platform for the production of a mechanical sleeve as claimed in claim 11, comprising the steps of:

s1, when a shaft sleeve is machined, firstly, adjusting the angle of the supporting plates (4) by using the supporting ring (5) according to the diameter of the shaft sleeve to enable the two supporting plates (4) and the bottom of the inner side of the clamping seat (1) to form an isosceles trapezoid groove, and then installing the shaft sleeve in the groove of the clamping seat (1);

s2, the shaft sleeve is pressed downwards by using the control rod (2), so that the shaft sleeve can be fixed;

s3, the height of the inserting shaft (7) is adjusted by using the supporting block (8), the inserting shaft (7) is inserted into the inner hole of the shaft sleeve by rotating the second lead screw (9), and the inserting shaft (7) plays a supporting role in the clamping position of the shaft sleeve to prevent the shaft sleeve from deforming under pressure.