Built-in rotary mandrel sleeve of lathe tailstock

Abstract

The utility model discloses a lathe tailstock built-in rotary mandrel sleeve, which belongs to the technical field of lathe tailstock, and comprises a tailstock and a tip sleeve, a flange connector is fixedly arranged above the outer surface of the tailstock, a connecting disc is fixedly arranged in the middle of the outer surface of the flange connector, a ball bearing is arranged in the center of the connecting disc, and a ball bearing is arranged in the center of the connecting disc. The ball bearing is fixed on the connecting disc through a bearing mounting seat, one end of the center sleeve is fixedly connected with an inner ring of the ball bearing through a central hole of the connecting disc, and the connecting disc, the ball bearing and the center sleeve are all arranged on the same axis. And the tail end is prevented from vibrating when the machine tool machines heavy-load workpieces.

Description

TECHNICAL FIELD

[0001] The utility model relates to lathe tailstock technology field, specifically is a lathe tailstock built -in rotating mandrel sleeve. BACKGROUND

[0002] Tailstock is an important component of machine tool, and is mainly used for supporting workpieces during machining to ensure the stability and precision of machining. Tailstock is usually located on the right side of the machine tool, and can accommodate workpieces of different lengths by sliding along the guide rail system to combine the parts being machined.

[0003] The rear tail pin is inserted into the taper hole of the tailstock sleeve and fixed by the friction force of the inner wall of the taper hole. The rear tail pin drives the product by rotating the end of the tail pin. If the rear tail pin works under heavy load, the tailstock will be cut by the machine tool when the tailstock part is close to the tailstock, which will cause the phenomenon of shaking the knife, affect the practical life of the knife and affect the product quality. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a lathe tailstock built-in rotating mandrel sleeve to at least partially solve the above technical problems.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a tailstock and a tail pin sleeve are provided, a flange connector is fixedly arranged on the upper surface of the tailstock, a connecting disc is fixedly arranged on the middle part of the outer surface of the flange connector, a ball bearing is arranged at the center of the connecting disc, the ball bearing is fixed on the connecting disc through a bearing mounting seat, one end of the tail pin sleeve is fixedly connected with the inner ring of the ball bearing through the center hole of the connecting disc, and the connecting disc, the ball bearing and the tail pin sleeve are on the same axis.

[0006] Preferably, a mounting groove is formed in the outer surface of the flange connector, a through hole is formed in the inner side of the flange connector, the through hole is located at the center of the mounting groove, and one end of the connecting disc is inserted into the mounting groove.

[0007] Preferably, a plurality of bolts are annularly arranged at the mounting groove part on the inner side of the flange connector, a plurality of bolt holes matched with the bolts are annularly formed in the outer surface of the connecting disc, and one end of each of the plurality of bolts is inserted into the connecting disc through the bolt hole.

[0008] Preferably, a hidden groove matched with the bearing mounting seat is formed in the back surface of the connecting disc, and the bearing mounting seat is located in the hidden groove.

[0009] Preferably, a screw hole is formed in the inner side of the connecting disc, and the bearing mounting seat is fixed on the connecting disc by a screw.

[0010] Preferably, the outer wall edge of the connecting disc is provided with two guide blocks, and the inner side of the flange connector is longitudinally provided with guide grooves, and the two guide blocks are respectively inserted into the two guide grooves.

[0011] Compared with the prior art, the beneficial effects of the utility model are that when the product rotates, one end of the tailstock sleeve rotates on the tailstock, compared with the rotary center, the tailstock can be connected with the fixed center and reaches the function of the rotary center, the overall tailstock carrying capacity and rigidity are enhanced, and vibration of the tail end when the machine tool processes heavy workpieces is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0013] Figure 1 It is the overall three-dimensional structure schematic diagram of the embodiment;

[0014] Figure 2 It is the front plane structure schematic diagram of the embodiment;

[0015] Figure 3 It is the tailstock connecting end explosion body structure schematic diagram of the embodiment;

[0016] Figure 4 It is the connecting disc side view cross section structure schematic diagram of the embodiment.

[0017] In the drawings, the component list represented by each sign is as follows:

[0018] 1, tailstock;2, flange connector;21, bolt;22, through port;23, mounting groove;3, connecting disc;31, bolt hole;32, guide block;4, center sleeve;5, ball bearing;6, bearing mounting seat;7, screw. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] Please refer to Figures 1-4The utility model provides a technical scheme: a lathe tailstock built -in rotating core axle sleeve, including tailstock 1, tailstock 1 upper surface is provided with the flange connector 2, the flange connector 2 outer surface middle part is fixedly provided with the connecting disc 3, the connecting disc 3 center part is provided with the ball bearing 5, the ball bearing 5 is fixed on the connecting disc 3 through bearing mounting seat 6, the connecting disc 3, ball bearing 5, tailstock sleeve 4 are all on the same axis,

[0021] Through the ball bearing 5 set on the connecting disc 3, the original tailstock sleeve 4 is inserted in the ball bearing 5 through the connecting disc 3 and is fixedly connected with the inner ring of the ball bearing 5, so that the tailstock sleeve 4 rotates in the connecting disc 3, a plurality of bolts 21 are arranged on the inner side of the flange connector 2, the connecting disc 3 with a plurality of bolt holes 31 can be fixed on the tailstock 1, when the product is processed, the center is fixed in the tailstock sleeve 4, the center is fixed, when the product rotates, the tailstock sleeve 4 one end is located on the tailstock 1 and rotates, compared with the rotating center, the tailstock 1 can connect the fixed center and reach the function of the rotating center, the overall tailstock 1 carrying capacity and rigidity are enhanced, and vibration of the tail end when the machine tool processes heavy load workpieces is avoided.

[0022] Further preferably, the flange connector 2 outer surface is provided with an installation groove 23, the flange connector 2 inner side is provided with a through hole 22, the through hole 22 is located at the center of the installation groove 23, and the connecting disc 3 is inserted into the installation groove 23;

[0023] The installation groove 23 is arranged on the outer surface of the flange connector 2 for installing the flange connector 2 on the tailstock 1, and the through hole 22 is arranged on the inner side of the flange connector 2 for installing the center.

[0024] Further preferably, a plurality of bolts 21 are annularly arranged on the inner side of the flange connector 2 at the installation groove 23, a plurality of bolt holes 31 matched with the bolts 21 are annularly arranged on the outer surface of the connecting disc 3, and one end of the plurality of bolts 21 is respectively inserted into the connecting disc 3 through the bolt holes 31;

[0025] The plurality of bolt holes 31 on the connecting disc 3 are aligned with the plurality of bolts 21, and are inserted into the plurality of bolts 21 and fixed by nuts.

[0026] Further preferably, a hidden groove matched with the bearing mounting seat 6 is arranged on the back of the connecting disc 3, and the bearing mounting seat 6 is located in the hidden groove;

[0027] The hidden groove arranged on the back of the connecting disc 3 is used for installing the bearing mounting seat 6 and the ball bearing 5, so that the back of the connecting disc 3 is flatly installed in the flange connector 2.

[0028] Referring to Figure 2 and Figure 4 In some embodiments, screw holes 7 are formed in the inner side of the connecting disc 3, and the bearing mounting seat 6 is fixed to the connecting disc 3 by the screws 7.

[0029] The ball bearing 5 is mounted by the bearing mounting seat 6, and the bearing mounting seat 6 and the ball bearing 5 are fixed to the connecting disc 3 by the screws 7.

[0030] Further preferably, two guide blocks 32 are arranged at the edge of the outer wall of the connecting disc 3, and guide grooves are longitudinally formed in the inner side of the flange connector 2, and the two guide blocks 32 are respectively inserted into the two guide grooves.

[0031] The guide blocks 32 arranged at the edge of the connecting disc 3 are inserted into the guide grooves formed in the inner side of the flange connector 2, so as to guide and mount the connecting disc 3, and the bolt holes 31 on the connecting disc 3 are conveniently aligned with the plurality of bolts 21.

[0032] When the tailstock 1 is assembled and used, firstly, the ball bearing 5 matched with the bearing mounting seat 6 is fixed together, then the center sleeve 4 is inserted into the inner ring of the ball bearing 5 and fixed to the inner ring of the ball bearing 5, the bearing mounting seat 6 is fixed to the back of the connecting disc 3 by the screws 7, the connecting disc 3 is guided and mounted on the flange connector 2 by the guide blocks 32 arranged at the two sides of the connecting disc 3 and aligned with the guide grooves in the inner side of the flange connector 2, and the connecting disc 3 is fixed in the flange connector 2 by the nuts, so as to form a tailstock 1 capable of rotating around the axis, and when the product is processed, the fixed center is fixed in the center sleeve 4, so that the tail end of the fixed center can rotate on the tailstock 1.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application.

[0034] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "arrangement", "connection", "fixing", "screw connection" and the like should be understood in a broad sense, for example, can be fixed connection, or can be detachable connection, or can be integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements, unless otherwise explicitly limited, and the specific meaning of the above terms in the present application can be understood according to the specific circumstances by those skilled in the art.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A built-in rotating mandrel sleeve for a lathe tailstock, comprising a tailstock (1), a centre sleeve (4), characterised in that: The tailstock (1) is fixed on the outer surface of the flange connector (2), the flange connector (2) is fixed on the outer surface of the connecting disc (3), the connecting disc (3) is provided with a ball bearing (5) in the center, the ball bearing (5) is fixed on the connecting disc (3) through the bearing mounting seat (6), one end of the center sleeve (4) is fixedly connected with the inner ring of the ball bearing (5) through the center hole of the connecting disc (3), the connecting disc (3), the ball bearing (5) and the center sleeve (4) are on the same axis.

2. A built-in rotating mandrel sleeve for a lathe tailstock according to claim 1, characterized in that: The flange connector (2) is provided with a mounting groove (23) on the outer surface, the flange connector (2) is provided with a through hole (22) on the inner side, the through hole (22) is located at the center of the mounting groove (23), and one end of the connecting disc (3) is inserted into the mounting groove (23).

3. A built-in rotating mandrel sleeve for a lathe tailstock according to claim 2, characterized in that: The flange connector (2) is provided with a plurality of bolts (21) on the inner side of the mounting groove (23), the connecting disc (3) is provided with a plurality of bolt holes (31) on the outer surface, the bolt holes (31) are matched with the bolts (21), and one end of the plurality of bolts (21) is inserted into the connecting disc (3) through the bolt holes (31).

4. A built-in rotating mandrel sleeve for a lathe tailstock according to claim 1, characterized in that: The connecting disc (3) is provided with a hidden groove matched with the bearing mounting seat (6) on the back surface, and the bearing mounting seat (6) is located in the hidden groove.

5. A built-in rotating mandrel sleeve for a lathe tailstock according to claim 4, characterized in that: The connecting disc (3) is provided with a screw (7) hole on the inner side, and the bearing mounting seat (6) is fixed on the connecting disc (3) through the screw (7).

6. A built-in rotating mandrel sleeve for a lathe tailstock according to claim 1, characterized in that: The connecting disc (3) is provided with two guide blocks (32) on the outer wall edge, the flange connector (2) is provided with a guide groove on the inner side, and the two guide blocks (32) are respectively inserted into the two guide grooves.

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