CN211334771U

CN211334771U - Spindle box and punching machine

Info

Publication number: CN211334771U
Application number: CN201922191534.8U
Authority: CN
Inventors: 徐新建; 江礼斌
Original assignee: Quzhou Demico Precision Machinery Co ltd
Current assignee: Anhui Hanjing Airui Precision Machinery Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-08-25
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to a lathe field provides a headstock, and this headstock includes main shaft, main shaft box, bearing assembly, the internal bearing frame that is provided with of headstock, bearing assembly includes first bearing, primary shaft bearing, second bearing, third bearing, fourth bearing and fourth bearing, the main shaft can pass through the second bearing the third bearing with the bearing frame is connected, the main shaft can pass through first bearing primary shaft bearing the fourth bearing with headstock edge connects, still provides a punching machine that is equipped with this headstock, and four bearing support a main shaft in the box to restrict its main shaft axial motion well, reduce the axle bending deflection volume simultaneously, thereby improve stamping process's precision, stamping process is more stable.

Description

Spindle box and punching machine

Technical Field

The utility model relates to a lathe field, in particular to headstock and punching machine.

Background

The headstock is an important part of the machine tool for the arrangement of the machine tool working spindle and its drive parts and corresponding additional mechanisms. The main spindle box not only bears the important function of power transmission, but also has an assembly structure which directly influences the machining precision and the machining efficiency of the machine tool, and how to improve the machining precision of the machine tool is always the key point of research in the field of machine tools.

The headstock generally includes main shaft and supporting component, drive assembly etc. CN209716205U discloses a high-speed accurate punching press mechanism of metalworking, including the base, the top equidistance of base is provided with a roof pressure post side by side, and the height of individual roof pressure post from a left side to the right side progressively increases progressively, the top of base is provided with the spring, and the top of spring is connected with the landing slab, has seted up the through-hole on the landing slab, the roof pressure post is inserted respectively and is located in the through-hole to the roof pressure post is sliding connection with the through-hole, the top of landing slab is provided with the clamp plate, and the bottom of clamp plate is provided with the recess, the structure and the position of recess all correspond with the roof pressure post, the top of clamp plate is connected with the one end of activity post, and the activity post is.

In the working process of the punching machine, the arrangement of the main shaft in the main shaft box usually affects the processing precision along with sudden load change, impact, vibration and the like, so that the whole punching machine is unstable and the like.

SUMMERY OF THE UTILITY MODEL

The punching machine is at the working process, because stamping process is along with load sudden change, impact, vibration etc. so lead to the main shaft to warp and the main shaft spacing not accurate, and then lead to the machining precision not high, in view of this, the utility model aims at providing a main shaft box, this main shaft box includes main shaft, main shaft box, bearing assembly, be provided with the bearing frame in the main shaft box, bearing assembly includes first bearing, first bearing frame, second bearing, third bearing, fourth bearing and fourth bearing frame, the main shaft can pass through the second bearing, the third bearing with the bearing frame is connected, the main shaft can pass through first bearing, first bearing frame, the fourth bearing with main shaft box edge connects.

Preferably, the second bearing outer ring and the third bearing outer ring are connected with the bearing seat in an interference fit manner, and the second bearing inner ring and the third bearing inner ring are connected with the main shaft in an interference fit manner.

Preferably, an axial limiting shaft shoulder is arranged on the main shaft between the second bearing and the third bearing, and a limiting plate is arranged on the end face of the second bearing and the end face of the third bearing, which faces away from the axial limiting shaft shoulder.

Preferably, the limiting plate is detachably connected with the bearing seat.

Preferably, the main spindle box further comprises a limiting shaft sleeve, and the inner wall of the bearing seat between the second bearing and the third bearing is coaxially arranged with the limiting shaft sleeve.

Preferably, the first bearing seat, the fourth bearing seat with the headstock body edge can be dismantled and be connected, the first bearing seat, the fourth bearing seat respectively with first bearing outer lane, fourth bearing outer lane interference fit connects.

Preferably, the main shaft box further comprises a first sealing assembly and a second sealing assembly, the first sealing assembly and the second sealing assembly are coaxially arranged with the main shaft, the first sealing assembly is detachably connected with the first bearing seat, and the second sealing assembly is detachably connected with the fourth bearing seat.

Preferably, the first bearing, the second bearing, the third bearing and the fourth bearing are self-aligning roller bearings.

Preferably, the spindle shaft section between the second bearing and the third bearing is cam-shaped.

The utility model also provides a punching machine, the punching machine includes headstock, material feeding unit, driving motor, punching machine lathe bed, headstock and punching machine lathe bed fixed connection, in the headstock main shaft one end is connected with material feeding unit, the other end with driving motor connects.

Compared with the prior art, the utility model provides a headstock and punching machine, the internal bearing frame that is provided with of headstock, main shaft can be connected with the headstock through first bearing, second bearing, third bearing and fourth bearing, and four bearings support a main shaft in the box to restrict its main shaft axial motion well, reduce the axle bending deflection simultaneously, thereby improve stamping process's precision, stamping process is more stable.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation.

In the drawings:

FIG. 1 is an assembly view of a spindle head of the present invention;

fig. 2 is a schematic structural view of a third bearing and a limiting plate according to the present invention;

fig. 3 is the utility model discloses the structural schematic of second bearing and limiting plate.

Description of reference numerals:

1 main shaft and 2 main shaft box

3 first seal assembly 4 bearing seat

5 first bearing 6 first bearing seat

7 second bearing 8 third bearing

9 th bearing and 10 th bearing seat

11 limit shaft sleeve 12 second sealing assembly

13 limiting plate

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, left, and right" generally means upper, lower, left, and right as illustrated with reference to the accompanying drawings; "inner and outer" refer to the inner and outer relative to the profile of the components themselves. The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

To solve the problems of the prior art, the stamping press is pointed out that during the working process of the stamping press, because the stamping process is accompanied by sudden load change, impact, vibration and the like, so that the problems of deformation of the main shaft, inaccurate limit of the main shaft, low machining precision and the like are caused, as shown in fig. 1-3, the utility model provides a spindle box, which comprises a spindle 1, a spindle box body 2 and a bearing assembly, a bearing seat 4 is arranged in the main shaft box body 2, the bearing assembly comprises a first bearing 5, a first bearing seat 6, a second bearing 7, a third bearing 8, a fourth bearing 9 and a fourth bearing seat 10, the main shaft 1 can be connected with the bearing seat 4 through the second bearing 7 and the third bearing 8, the main shaft 1 can pass through the first bearing 5, the first bearing seat 6, the fourth bearing 9, the fourth bearing seat 10 and the edge of the main shaft box body 2 is connected.

In order to restrict the relative axial motion between main shaft and its bearing and the relative axial motion between restriction bearing frame and the bearing the utility model discloses under the more preferred condition, the 7 outer lanes of second bearing the 8 outer lanes of third bearing with 4 interference fit of bearing frame are connected, the 7 inner lanes of second bearing the 8 inner lanes of third bearing with 1 interference fit of main shaft is connected.

In order to restrict the motion between the bearing and the relative axial of bearing better the utility model discloses under the more preferred condition, second bearing 7 between the third bearing 8 be provided with the spacing shaft shoulder of axial on the main shaft 1, second bearing 7 the terminal surface of the spacing shaft shoulder of third bearing 8 dorsad axial is provided with limiting plate 13.

In order to fix the limiting plate 13 more steadily the utility model discloses under the more preferred condition, the limiting plate 13 with the connection can be dismantled to the bearing frame 4, under the more preferred condition, is being close to limiting plate 13 both ends adopt 1 at least threaded connection respectively.

In order to better prescribe a limit to the relative position of second bearing, third bearing and with the axiality of the assembly of the 4 inner walls of bearing frame the utility model discloses under the more preferred condition, the headstock still includes spacing axle sleeve 11, second bearing 7 between the third bearing 8 the 4 inner walls of bearing frame and the coaxial setting of spacing axle sleeve 11.

In order to reduce main shaft bending deformation better, improve the spacing precision between main shaft and the main shaft box the utility model discloses under the more preferred condition, primary shaft bearing 6 fourth bearing 10 with the connection can be dismantled at 2 edges of main shaft box, primary shaft bearing 6 fourth bearing 10 respectively with 5 outer lanes of primary shaft bearing 9 outer lane interference fit connects.

In order to better seal main shaft and headstock body, improve the leakproofness between main shaft and the headstock the utility model discloses under the more preferred condition, the headstock still includes first seal assembly 3, second seal assembly 12, first seal assembly 3, second seal assembly 12 with the 1 coaxial setting of main shaft, first seal assembly 3 with first bearing frame 6 can dismantle the connection, second seal assembly 12 with the connection can be dismantled to fourth bearing frame 10.

In order to better fix a position and guarantee main shaft motion's high accuracy, reliability and stability, in order to make the bearing can bear radial load, also can bear two-way bearing to the load to there is great radial bearing capacity, has the function of aligning again, avoids installation error or axle flexure and influences the use of bearing, and vibration shock resistance nature is big the utility model discloses under the more preferred condition, first bearing 5, second bearing 7, third bearing 8, fourth bearing 9 are self-aligning roller bearing.

Thereby can drive the connecting rod up-and-down motion and carry out the punching press to the article for output intermittent type nature output power the utility model discloses under the more preferred condition, second bearing 7 between the third bearing 8 1 shaft section of main shaft is the cam form.

In order to solve the background art part point out the punching machine at the working process, because stamping process is along with load sudden change, impact, vibration etc, the utility model also provides a punching machine, the punching machine include headstock, material feeding unit, driving motor, punching machine lathe bed, headstock and punching machine lathe bed fixed connection, in the headstock 1 one end is connected with material feeding unit, the other end with driving motor is connected.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a spindle box, its characterized in that, the spindle box includes main shaft (1), main shaft box (2), bearing assembly, be provided with bearing frame (4) in the main shaft box (2), bearing assembly includes first bearing (5), first bearing frame (6), second bearing (7), third bearing (8), fourth bearing (9) and fourth bearing frame (10), main shaft (1) can pass through second bearing (7) third bearing (8) with bearing frame (4) are connected, main shaft (1) can pass through first bearing (5) first bearing frame (6) fourth bearing (9) fourth bearing frame (10) with main shaft box (2) edge connection.

2. The spindle box according to claim 1, characterized in that the second bearing (7) outer ring and the third bearing (8) outer ring are connected with the bearing seat (4) in an interference fit manner, and the second bearing (7) inner ring and the third bearing (8) inner ring are connected with the spindle (1) in an interference fit manner.

3. The spindle box according to claim 2, characterized in that an axial limiting shoulder is arranged on the spindle (1) between the second bearing (7) and the third bearing (8), and a limiting plate (13) is arranged on the end surface of the second bearing (7) and the third bearing (8) facing away from the axial limiting shoulder.

4. A headstock according to claim 3, characterised in that the stop plate (13) is detachably connected to the bearing block (4).

5. A spindle box according to claim 2, characterised in that the spindle box further comprises a limit sleeve (11), and the inner wall of the bearing seat (4) between the second bearing (7) and the third bearing (8) is arranged coaxially with the limit sleeve (11).

6. The spindle box according to claim 1, characterized in that the first bearing seat (6) and the fourth bearing seat (10) are detachably connected with the edge of the spindle box body (2), and the first bearing seat (6) and the fourth bearing seat (10) are respectively connected with the outer ring of the first bearing (5) and the outer ring of the fourth bearing (9) in an interference fit manner.

7. The spindle head according to claim 1, characterized in that the spindle head further comprises a first sealing assembly (3) and a second sealing assembly (12), the first sealing assembly (3) and the second sealing assembly (12) are coaxially arranged with the spindle (1), the first sealing assembly (3) is detachably connected with the first bearing seat (6), and the second sealing assembly (12) is detachably connected with the fourth bearing seat (10).

8. A spindle head according to claim 1, characterised in that the first bearing (5), the second bearing (7), the third bearing (8) and the fourth bearing (9) are self-aligning roller bearings.

9. A spindle head according to claim 1, characterised in that the spindle (1) shaft section between the second bearing (7) and the third bearing (8) is cam-shaped.

10. A press, characterized in that the press comprises a headstock according to any of claims 1-7, a feed device, a drive motor, and a press bed, the headstock being fixedly connected to the press bed, the spindle (1) in the headstock being connected at one end to the feed device and at the other end to the drive motor.