Vertical lathe

Abstract

The utility model discloses a vertical lathe which comprises a base and a mechanical headstock arranged on the top face of the base and located at the bottom of a tool turret. The rotary limiting mechanism is arranged at the top of the mechanical headstock; comprising an annular sliding groove formed in the top face of a mechanical headstock, a T-shaped movable block slidably located in the annular sliding groove, a movable seat slidably located on the top face of the mechanical headstock and fixed to the top end of the T-shaped movable block, a pressing plate movably installed on the top face of the movable seat, and a rubber pad fixed to the bottom face of the pressing plate, wherein the top end of the T-shaped movable block extends out of the top face of the mechanical headstock; according to the utility model, a vertical lathe in the prior art is improved, and the rotary limiting mechanism is designed at the top of the mechanical headstock, so that a workpiece placed at the top of the mechanical headstock can be effectively pressed and limited, the stability of the lathe when the workpiece is machined is ensured, and the machining precision is improved; after subsequent machining is completed, the pressing plate is lifted, the movable base is pushed, the pressing plate is moved away from the edge of the top of the workpiece, and then the workpiece can be normally taken and placed.

Description

Technical Field

[0001] The utility model belongs to the technical field of lathes, and particularly relates to a vertical lathe. Background Technique

[0002] The vertical lathe, abbreviated as "vertical lathe", is mainly used for machining large-sized, heavy workpieces with large diameters and short lengths and workpieces that are not easy to be clamped on a horizontal lathe. It mainly consists of a base, a column, a mechanical spindle, a crossbeam, a workbench, a turret and a numerical control system. The column supports the crossbeam, the workbench can move up and down on the column, and the numerical control system controls the machining process to improve machining accuracy and efficiency;

[0003] In the actual use of the existing vertical lathes, the workpiece to be machined needs to be placed on the mechanical spindle table, but there is no effective limiting structure designed on the mechanical spindle table, resulting in the workpiece not being stably limited during the machining process and may displace, thereby reducing the machining accuracy. For this reason, the utility model provides a vertical lathe. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a vertical lathe to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A vertical lathe, comprising

[0006] A base, a column installed on the top surface of the base, a crossbeam installed at the top end of the column, a workbench installed at the front end of the crossbeam, a turret installed at the bottom end of the workbench, and a mechanical spindle table installed on the top surface of the base and located at the bottom of the turret;

[0007] And a rotary limiting mechanism arranged on the top of the mechanical spindle table, including an annular chute opened on the top surface of the mechanical spindle table, a T-shaped movable block slidably located in the annular chute and with its top end extending out of the top surface of the mechanical spindle table, a movable seat slidably located on the top surface of the mechanical spindle table and fixed to the top end of the T-shaped movable block, a pressing plate movably installed on the top surface of the movable seat, and a rubber pad fixed to the bottom surface of the pressing plate. The rotary limiting mechanism further includes an inner chute opened inside the movable seat, an inner slider and a spring installed in the inner chute, and two connecting rods fixed to the top surface of the inner slider. The top ends of the two connecting rods penetrate through the top surface of the movable seat and are fixed to the pressing plate.

[0008] Preferably, a cylindrical installation groove is opened on the top surface of the inner slider, and the bottom end of the spring is embedded in the installation groove.

[0009] Preferably, two round holes communicating with the inner chute are opened on the top surface of the movable seat, and the round holes are adapted to the connecting rods.

[0010] Preferably, the rubber pad is adhesively fixed to the bottom surface of the pressing plate, and a plurality of strip-shaped anti-slip grooves are formed in the bottom surface of the rubber pad.

[0011] Preferably, the rotary limiting mechanism further includes an auxiliary structure. The auxiliary structure includes an L-shaped rubber side seat fixed to the side surface of the movable seat. The bottom end of the L-shaped rubber side seat extends to the circumferential surface of the mechanical main shaft table and fits with the mechanical main shaft table. An integrated positioning protrusion is provided inside the bottom end of the L-shaped rubber side seat. A plurality of positioning slots corresponding to the positioning protrusions are formed in the circumferential surface of the mechanical main shaft table. The positioning protrusion is embedded into one of the positioning slots. A rectangular notch is formed in the bottom surface of the L-shaped rubber side seat.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: By improving the vertical lathe in the prior art, a rotary limiting mechanism is designed on the top of its mechanical main shaft table, which can effectively press and limit the workpiece placed on the top of the mechanical main shaft table, ensure the stability during the machining of the workpiece by the lathe, improve the machining accuracy, and then lift the pressing plate and push the movable seat to move the pressing plate away from the top edge of the workpiece after the machining is completed, so that the workpiece can be normally placed and taken. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a partial enlarged view of the rotary limiting mechanism of the present utility model;

[0015] Figure 3 is a cross-sectional view of the rotary limiting mechanism of the present utility model;

[0016] In the figure: 1, base; 2, mechanical main shaft table; 3, column; 4, workbench; 5, turret; 6, rotary limiting mechanism; 61, movable seat; 62, T-shaped movable block; 63, annular sliding groove; 64, pressing plate; 65, rubber pad; 66, L-shaped rubber side seat; 67, positioning slot; 68, inner sliding groove; 69, inner slider; 610, spring; 611, connecting rod; 612, positioning protrusion; 7, cross beam. Detailed Embodiments

[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Embodiment

[0019] Please refer to Figures 1 to 3 , which is an embodiment of the present utility model. This embodiment provides a technical solution: a vertical lathe, including

[0020] a base 1, a column 3 installed on the top surface of the base 1, a crossbeam 7 installed at the top end of the column 3, a workbench 4 installed at the front end of the crossbeam 7, a turret 5 installed at the bottom end of the workbench 4, and a mechanical spindle table 2 installed on the top surface of the base 1 and located at the bottom of the turret 5;

[0021] and a rotary limiting mechanism 6 arranged on the top of the mechanical spindle table 2, including an annular sliding groove 63 opened on the top surface of the mechanical spindle table 2, a T-shaped movable block 62 slidably located in the annular sliding groove 63 and with its top end extending out and being flush with the top surface of the mechanical spindle table 2, a movable seat 61 slidably located on the top surface of the mechanical spindle table 2 and fixed to the top end of the T-shaped movable block 62, a pressing plate 64 movably installed on the top surface of the movable seat 61, and a rubber pad 65 fixed to the bottom surface of the pressing plate 64. Subsequently, the pressing plate 64 can be lifted, and the workpiece can be placed on the top of the mechanical spindle table 2, and then the pressing plate 64 is released. Under the push of the spring 610, the inner slider 69 will pull back the connecting rod 611, causing the rubber pad 65 at the bottom of the pressing plate 64 to stably press on the top edge of the workpiece, realizing the pressing and limiting of the workpiece. The rotary limiting mechanism 6 further includes an inner sliding groove 68 opened inside the movable seat 61, an inner slider 69 and a spring 610 installed in the inner sliding groove 68, and two connecting rods 611 fixed to the top surface of the inner slider 69. The top ends of the two connecting rods 611 penetrate through to the top surface of the movable seat 61 and are fixed to the pressing plate 64. Under the extrusion of the spring 610, the pressing plate 64 can stably press and limit the workpiece placed on the top of the mechanical spindle table 2. Subsequently, if the workpiece needs to be taken or placed, only the pressing plate 64 needs to be lifted to release the pressing on the workpiece, and then the movable seat 61 is pushed, so that the T-shaped movable block 62 slides in the annular sliding groove 63, and the movable seat 61 can slide on the top of the mechanical spindle table 2 to release the block on the top of the workpiece, facilitating the normal taking and placing of the workpiece.

[0022] Wherein, a cylindrical installation groove is opened on the top surface of the inner slider 69, and the bottom end of the spring 610 is embedded in the installation groove to realize the limiting of the spring 610 and prevent the spring 610 from running off.

[0023] Wherein, two round holes communicating with the inner sliding groove 68 are opened on the top surface of the movable seat 61, and the round holes are adapted to the connecting rods 611 to allow the connecting rods 611 to pass through smoothly.

[0024] Wherein, the rubber pad 65 is adhesively fixed to the bottom surface of the pressing plate 64, and a plurality of strip-shaped anti-slip grooves are opened on the bottom surface of the rubber pad 65 to improve the anti-slip effect, so that the rubber pad 65 can press more stably on the surface of the workpiece subsequently.

[0025] Among them, the rotary limiting mechanism 6 also includes an auxiliary structure, which includes an L-shaped rubber side seat 66 fixed on the side of the movable seat 61, and the bottom end of the L-shaped rubber side seat 66 extends to the circumferential surface of the mechanical spindle table 2 and fits with the mechanical spindle table 2. An integrated positioning protrusion 612 is provided on the inner side of the bottom end of the L-shaped rubber side seat 66. Both are made of rubber material and will undergo elastic deformation when squeezed. A plurality of positioning grooves 67 corresponding to the positioning protrusion 612 are provided on the circumferential surface of the mechanical spindle table 2, and the positioning protrusion 612 is embedded in one of the positioning grooves 67. When the T-shaped movable block 62 slides in the annular groove 63, the movable seat 61 will rotate around the center of the mechanical spindle table 2, and the bottom end of the L-shaped rubber side seat 66 will also be on the mechanical spindle table. When the positioning protrusion 612 is squeezed into the other positioning slots 67, the L-shaped rubber side seat 66 and the movable seat 61 are limited. If the operator stops pushing the movable seat 61 at this time, the movable seat 61 will be limited so that the movable seat 61 will not be easily displaced on the top of the mechanical spindle table 2. When the operator needs to adjust the position of the movable seat 61, he only needs to forcefully pry the bottom end of the L-shaped rubber side seat 66 outward to move the positioning protrusion 612 out of the current positioning slot 67, and then push the movable seat 61 with force by hand to realize the rotation adjustment of the position of the movable seat 61.

[0026] A rectangular notch is provided on the bottom surface of the L-shaped rubber side seat 66 , which can facilitate subsequent operators to pry the bottom end of the L-shaped rubber side seat 66 outward.

[0027] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical lathe, characterized in that: including a base (1), a column (3) installed on the top surface of the base (1), a cross beam (7) installed at the top end of the column (3), a workbench (4) installed at the front end of the cross beam (7), a turret (5) installed at the bottom end of the workbench (4), and a mechanical spindle table (2) installed on the top surface of the base (1) and located at the bottom of the turret (5); and a rotary limiting mechanism (6) arranged on the top of the mechanical spindle table (2), including an annular sliding groove (63) opened on the top surface of the mechanical spindle table (2), a T-shaped movable block (62) slidably located in the annular sliding groove (63) and with its top end protruding out and being flush with the top surface of the mechanical spindle table (2), a movable seat (61) slidably located on the top surface of the mechanical spindle table (2) and fixed to the top end of the T-shaped movable block (62), a pressing plate (64) movably installed on the top surface of the movable seat (61), and a rubber pad (65) fixed to the bottom surface of the pressing plate (64).

2. The vertical lathe according to claim 1, wherein: The rotary limiting mechanism (6) further includes an inner sliding groove (68) opened inside the movable seat (61), an inner slider (69) and a spring (610) installed in the inner sliding groove (68), and two connecting rods (611) fixed to the top surface of the inner slider (69). The top ends of the two connecting rods (611) penetrate through to the top surface of the movable seat (61) and are fixed to the pressing plate (64).

3. A vertical lathe according to claim 2, characterized in that: A cylindrical installation groove is opened on the top surface of the inner slider (69), and the bottom end of the spring (610) is embedded in the installation groove.

4. A vertical lathe according to claim 1, wherein: Two circular holes communicating with the inner sliding groove (68) are opened on the top surface of the movable seat (61), and the circular holes are adapted to the connecting rods (611).

5. A vertical lathe according to claim 1, characterized in that: The rubber pad (65) is adhesively fixed to the bottom surface of the pressing plate (64), and a plurality of strip-shaped anti-slip grooves are opened on the bottom surface of the rubber pad (65).

6. A vertical lathe according to claim 1, wherein: The rotary limiting mechanism (6) further includes an auxiliary structure. The auxiliary structure includes an L-shaped rubber side seat (66) fixed to the side surface of the movable seat (61), and the bottom end of the L-shaped rubber side seat (66) extends to the circumferential surface of the mechanical spindle table (2) and fits with the mechanical spindle table (2).

7. The vertical lathe according to claim 6, characterized in that: A positioning convex block (612) integrated with the bottom end inner side of the L-shaped rubber side seat (66) is provided. A plurality of positioning card slots (67) corresponding to the positioning convex block (612) are opened on the circumferential surface of the mechanical spindle table (2), and the positioning convex block (612) is embedded in one of the positioning card slots (67).

8. A vertical lathe according to claim 6, characterized in that: A rectangular notch is opened on the bottom surface of the L-shaped rubber side seat (66).

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