High-grade numerical control lathe inner support type tailstock

Abstract

The utility model discloses a high -grade numerical control lathe inner bracing type tailstock, including drive mechanism, swivel seat, conical head, tensioning subassembly and push disc, the drive mechanism is including drive subassembly and the pull bolt of being driven to do the forward and backward movement by it, be equipped with the swivel seat on the drive subassembly, the front end of swivel seat is equipped with conical head, the conical head is equipped with tensioning subassembly with its cooperation on the sleeve, drive subassembly drives tensioning subassembly to move backward through the pull bolt, be equipped with the push disc of elastic sliding and with tensioning subassembly rear end abut on the swivel seat, compared with prior art, can realize the processing of motor casing of conventional single main shaft numerical control lathe, reduces equipment use cost, and fixed stable reliability is good.

Description

Technical Field

[0001] This utility model relates to the technical field of CNC lathes, and in particular to the technical field of an internal support tailstock for a high-end CNC lathe. Background Technology

[0002] In industrial production, there are workpieces with tubular structures that need to be processed. After the two ends of the tubular body are fastened, it is driven to rotate, so as to perform turning and other operations on the tube wall to form the shape.

[0003] With the development of the new energy industry, motor housings are becoming increasingly lightweight. Machining the outer circle and end faces of the housing generally requires internal support machining at both ends. Currently, this is mainly done using twin-spindle machine tools, which is costly. Conventional single-spindle CNC lathes are relatively cheaper, but the tailstock of these lathes generally uses a top cone structure, which cannot meet the requirements for fixing the motor housing. To solve this problem, this application proposes a high-end CNC lathe with internal support tailstock, enabling the machining of motor housings on conventional single-spindle CNC lathes and reducing equipment operating costs. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art and propose an internal support tailstock for high-end CNC lathes, which can realize the machining of motor housings on conventional single-spindle CNC lathes, reduce equipment operating costs, and provide good stability and reliability.

[0005] To achieve the above objectives, this utility model proposes an internal support tailstock for a high-end CNC lathe, comprising a drive mechanism, a rotating seat, a conical head, a tensioning assembly, and a push plate. The drive mechanism includes a drive assembly and a pull bolt driven by it to move back and forth. The drive assembly is provided with a rotating seat, and the front end of the rotating seat is provided with a conical head. A tensioning assembly is fitted onto the conical head and cooperates with it. The drive assembly drives the tensioning assembly to move backward through the pull bolt. The rotating seat is provided with a push plate that slides elastically and abuts against the rear end of the tensioning assembly.

[0006] Preferably, the tensioning assembly is a ring structure consisting of several tensioning bodies and several elastic rubbers arranged alternately and connected to each other, with the inner end of the tensioning body cooperating with the conical surface of the conical head, and the outer end of the tensioning body being a plane.

[0007] Preferably, the front end of the rotating seat is provided with a mounting groove surrounding the conical head, and each mounting groove is provided with a spring that abuts against the push plate.

[0008] Preferably, a pressure plate is provided between the front end of the tensioning assembly and the pull head of the bolt, and the front end of the pressure plate is provided with an end face bearing I that abuts against the pull head.

[0009] Preferably, the rear end of the pressure plate is provided with protrusions that correspond one-to-one with the tensioning body, and the front end of each tensioning body is provided with a sliding groove that cooperates with the protrusion.

[0010] Preferably, the drive assembly includes a mounting base, a piston chamber, an end cap, a piston, a connecting port I, and a connecting port II. The rear end of the mounting base is provided with a piston chamber and an end cap that closes the piston chamber. A piston that cooperates with the piston chamber is provided inside the piston chamber. The mounting base is provided with a connecting port I that communicates with the piston chamber in front of the piston. The end cap is provided with a connecting port II that communicates with the piston chamber behind the piston.

[0011] Preferably, the front end of the mounting base is provided with a hollow shaft that communicates with the piston chamber. Bearings are provided between the hollow shaft and the conical head and the rotating seat. An end face bearing II is provided between the rotating seat and the front end of the mounting base. A pull bolt that is fixedly connected to the piston is provided inside the hollow shaft.

[0012] Preferably, the rear end of the end cap is provided with a Morse taper shaft.

[0013] The beneficial effects of this utility model are as follows: This utility model comprises a drive mechanism, a rotating seat, a conical head, a tensioning component, and a push plate. The drive mechanism includes a drive assembly and a pull bolt driven by it to move back and forth. The drive assembly is equipped with a rotating seat, and the front end of the rotating seat is equipped with a conical head. A tensioning component is fitted onto the conical head and cooperates with it. The drive assembly drives the tensioning component to move backward through the pull bolt. The rotating seat is equipped with a push plate that slides elastically and abuts against the rear end of the tensioning component. Under the action of the drive assembly, the pull bolt drives the tensioning component to move backward. The conical head forces the tensioning component to expand and tension and fix the motor housing. Compared with the prior art, this utility model can realize the processing of the motor housing on a conventional single-spindle CNC lathe, reduce the equipment operating cost, and has good stability and reliability.

[0014] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an internal support tailstock for a high-end CNC lathe according to this utility model; Figure 2 This is a side view of the tensioning component.

[0016] In the diagram: 1-Drive mechanism, 2-Rotating seat, 3-Conical head, 4-Tensioning assembly, 5-Push plate, 6-Protrusion, 7-Mohs taper shaft, 8-Mounting groove, 9-Spring, 10-End face bearing I, 11-Drive assembly, 12-Pull bolt, 13-Pressure plate, 14-Sealing ring, 41-Tensioning body, 42-Elastic rubber, 43-Slide groove, 121-Pull head, 111-Mounting seat, 112-Piston chamber, 113-End cover, 114-Piston, 115-Connecting port I, 116-Connecting port II, 117-Hollow shaft, 118-Bearing, 119-End face bearing II. Detailed Implementation

[0017] See Figure 1 , Figure 2 This utility model discloses an internal support tailstock for a high-end CNC lathe, comprising a drive mechanism 1, a rotating seat 2, a conical head 3, a tensioning assembly 4, and a push plate 5. The drive mechanism 1 includes a drive assembly 11 and a pull bolt 12 driven by it to move back and forth. The drive assembly 11 is provided with a rotating seat 2, and the front end of the rotating seat 2 is provided with a conical head 3. The tensioning assembly 4 is fitted on the conical head 3 and cooperates with it. The drive assembly 11 drives the tensioning assembly 4 to move backward through the pull bolt 12. The rotating seat 2 is provided with a push plate 5 that slides elastically and abuts against the rear end of the tensioning assembly 4.

[0018] The tensioning component 4 is a ring structure consisting of several tensioning bodies 41 and several elastic rubbers 42 arranged alternately and connected to each other. The inner end of the tensioning body 41 is engaged with the conical surface of the conical head 3, and the outer end of the tensioning body 41 is a plane.

[0019] The front end of the rotating seat 2 is provided with a mounting groove 8 surrounding the conical head 3, and each mounting groove 8 is provided with a spring 9 that abuts against the push plate 5.

[0020] A pressure plate 13 is provided between the front end of the tensioning assembly 4 and the pull head 121 of the bolt 12, and the front end of the pressure plate 13 is provided with an end face bearing I10 that abuts against the pull head 121.

[0021] The rear end of the pressure plate 13 is provided with a protrusion 6 corresponding to the tensioning body 41, and the front end of the tensioning body 41 is provided with a sliding groove 43 that cooperates with the protrusion 6.

[0022] The drive assembly 11 includes a mounting base 111, a piston chamber 112, an end cap 113, a piston 114, a communication port I115, and a communication port II116. The rear end of the mounting base 111 is provided with a piston chamber 112 and an end cap 113 that closes the piston chamber 112. The piston chamber 112 is provided with a piston 114 that cooperates with it. The mounting base 111 is provided with a communication port I115 that communicates with the piston chamber 112 in front of the piston 114. The end cap 113 is provided with a communication port II116 that communicates with the piston chamber 112 behind the piston 114.

[0023] The front end of the mounting base 111 is provided with a hollow shaft 117 that communicates with the piston chamber 112. The hollow shaft 117 is provided with bearings 118 between the conical head 3 and the rotating seat 2. The rotating seat 2 is provided with an end face bearing II 119 between the front end of the mounting base 111. The hollow shaft 117 is provided with a pull bolt 12 that is fixedly connected to the piston 114.

[0024] The rear end of the end cap 113 is provided with a Morse taper shaft 7.

[0025] The working process of this utility model: In the operation of this high-end CNC lathe internal support tailstock, the workpiece is placed on the tensioning assembly 4 and comes into contact with the push plate 5. Hydraulic oil enters the piston chamber 112 in front of the piston 114 through the connecting port I115, pushing the piston 114 to move backward. The hydraulic oil in the piston chamber 112 behind the piston 114 is discharged from the connecting port II116. The piston 114 pulls the pull bolt 12 to move backward. The pull bolt 12 drives the tensioning assembly 4 to move backward through the end face bearing I10 and the pressure plate 13 in sequence. The conical head 3 forces the tensioning assembly 4 to expand and tension and fix the workpiece. At the same time as the tensioning assembly 4 moves backward, it pushes the push plate 5 to compress the spring 9.

[0026] After the workpiece is processed, hydraulic oil enters the piston chamber 112 behind the piston 114 through the connecting port II116, pushing the piston 114 forward. The hydraulic oil in the piston chamber 112 in front of the piston 114 is discharged from the connecting port I115. The piston 114 pushes the pull bolt 12 forward. At this time, the push plate 5 moves forward under the action of the spring 9. The push plate 5 drives the tensioning assembly 4, the pressure plate 13 and the end face bearing I10 to move forward in sequence. While the tensioning assembly 4 moves forward, it contracts under the action of the elastic rubber 42 to release the fixation of the workpiece.

[0027] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A high-end CNC lathe with an internal support tailstock, characterized in that: The device includes a drive mechanism (1), a rotating seat (2), a conical head (3), a tensioning assembly (4), and a push plate (5). The drive mechanism (1) includes a drive assembly (11) and a bolt (12) driven by it to move back and forth. The drive assembly (11) is provided with a rotating seat (2). The front end of the rotating seat (2) is provided with a conical head (3). The tensioning assembly (4) is fitted on the conical head (3). The drive assembly (11) drives the tensioning assembly (4) to move backward through the bolt (12). The rotating seat (2) is provided with a push plate (5) that slides elastically and abuts against the rear end of the tensioning assembly (4).

2. The high-end CNC lathe internal support tailstock as described in claim 1, characterized in that: The tensioning component (4) is a ring structure consisting of several tensioning bodies (41) and several elastic rubbers (42) arranged alternately and connected to each other. The inner end of the tensioning body (41) is matched with the conical surface of the conical head (3), and the outer end of the tensioning body (41) is a plane.

3. The high-end CNC lathe internal support tailstock as described in claim 1, characterized in that: The front end of the rotating seat (2) is provided with a mounting groove (8) surrounding the conical head (3), and each mounting groove (8) is provided with a spring (9) that abuts against the push plate (5).

4. The high-end CNC lathe internal support tailstock as described in claim 2, characterized in that: A pressure plate (13) is provided between the front end of the tensioning assembly (4) and the pull head (121) of the bolt (12), and the front end of the pressure plate (13) is provided with an end face bearing I (10) that abuts against the pull head (121).

5. The high-end CNC lathe internal support tailstock as described in claim 4, characterized in that: The rear end of the pressure plate (13) is provided with a protrusion (6) corresponding to the tensioning body (41), and the front end of the tensioning body (41) is provided with a groove (43) that cooperates with the protrusion (6).

6. The high-end CNC lathe internal support tailstock as described in claim 1, characterized in that: The drive assembly (11) includes a mounting base (111), a piston chamber (112), an end cap (113), a piston (114), a communication port I (115), and a communication port II (116). The rear end of the mounting base (111) is provided with a piston chamber (112) and an end cap (113) that closes the piston chamber (112). The piston chamber (112) is provided with a piston (114) that cooperates with it. The mounting base (111) is provided with a communication port I (115) that communicates with the piston chamber (112) in front of the piston (114). The end cap (113) is provided with a communication port II (116) that communicates with the piston chamber (112) behind the piston (114).

7. The high-end CNC lathe internal support tailstock as described in claim 6, characterized in that: The front end of the mounting base (111) is provided with a hollow shaft (117) communicating with the piston chamber (112). The hollow shaft (117) is provided with bearings (118) between the conical head (3) and the rotating seat (2). The rotating seat (2) is provided with an end face bearing II (119) between the front end of the mounting base (111). The hollow shaft (117) is provided with a pull bolt (12) fixedly connected to the piston (114).

8. The high-end CNC lathe internal support tailstock as described in claim 6, characterized in that: The end cap (113) is provided with a Morse taper shaft (7) at its rear end.

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