Positive and negative spindle clamping mechanism of lathe

Abstract

The utility model discloses a positive and negative spindle clamping mechanism of a lathe, which comprises a lathe frame mounted on the lathe; the transverse moving seat is arranged on the lathe frame; the fixed main shaft clamping group is arranged on one side of the transverse moving seat and is used for clamping one end of a workpiece; the movable clamping group is arranged on the transverse moving seat in a sliding manner, is opposite to the fixed main shaft clamping group, and is used for clamping the other end of the workpiece; the transverse driving set is arranged on the transverse moving base and used for driving the moving clamping set to move in the length direction of the transverse moving base so as to be close to or away from the fixed main shaft clamping set. The clamping device is simple in structure, the fixed main shaft clamping set and the movable clamping set are correspondingly arranged on the transverse moving base and used in cooperation, the two ends of a workpiece are clamped, and it is guaranteed that the workpiece is stable, practical and convenient; the transverse driving set can drive the movable clamping set to move, the distance between the movable clamping set and the transverse driving set is adjusted, workpieces of various specifications can be machined conveniently, and practicability and convenience are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe equipment, in particular to a positive and negative spindle clamping mechanism for a lathe. Background Art

[0002] CNC lathe is one of the most widely used CNC machine tools. It is mainly used for cutting inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of arbitrary cone angles, complex rotary inner and outer curved surfaces, and cylindrical and conical threads, and can also perform grooving, drilling, reaming, boring and so on.

[0003] At present, most of the existing CNC lathe machine tool structures are single-spindle designs. One end of the workpiece is clamped on the spindle and then processed using a tool. However, when the workpiece is long, it cannot be completely clamped by a single spindle, and the other end will fall slightly, resulting in inaccurate processing and great inconvenience. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a positive and negative spindle clamping mechanism for a lathe.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A positive and negative spindle clamping mechanism for a lathe, comprising:

[0007] Lathe frame, mounted on the lathe;

[0008] A transverse movable seat, arranged on the lathe frame;

[0009] A fixed spindle clamping group, arranged on one side of the transverse moving seat, for clamping one end of the workpiece;

[0010] A movable clamping group is slidably disposed on the transverse movable seat and is arranged opposite to the fixed spindle clamping group, and is used to clamp the other end of the workpiece;

[0011] The transverse driving group is arranged on the transverse moving seat, and is used for driving the moving clamping group to move along the length direction of the transverse moving seat to approach or move away from the fixed spindle clamping group.

[0012] In the lathe positive and negative spindle clamping mechanism as described above, the movable clamping group includes a support plate slidably arranged on the transverse movable seat, a base slidably arranged on the support plate, and a clamping assembly arranged on the base.

[0013] In the lathe positive and negative spindle clamping mechanism as described above, the clamping assembly includes a mounting plate arranged on the base, and a negative clamping spindle and a plurality of clamping blocks arranged on the mounting plate.

[0014] In the positive and negative spindle clamping mechanism of a lathe as described above, the support plate is also provided with a front and rear drive group capable of driving the base to move along the front and rear directions of the support plate.

[0015] In the positive and negative spindle clamping mechanism of a lathe as described above, the front and rear drive groups include a first rotating shaft rotatably arranged on the support plate, a first transmission member sleeved on the first rotating shaft, and a first driver arranged at one end of the support plate for driving the first rotating shaft to rotate, wherein the first transmission member is connected to the bottom of the base.

[0016] In the lathe positive and negative spindle clamping mechanism as described above, a limit piece is further provided at the lower end of the support plate.

[0017] In the positive and negative spindle clamping mechanism of a lathe as described above, the lateral drive group includes a second rotating shaft rotatably arranged on the lateral moving seat, a second transmission member sleeved on the second rotating shaft, and a second driver arranged at one end of the lateral moving seat for driving the second rotating shaft to rotate, wherein the second transmission member is connected to the lower end of the movable clamping group.

[0018] In the positive and negative spindle clamping mechanism of a lathe as described above, the fixed spindle clamping group includes a spindle seat arranged at one end of the lateral moving seat, and a positive clamping spindle arranged on the spindle seat.

[0019] In the positive and negative spindle clamping mechanism of a lathe as described above, the upper end surface of the transverse movable seat is inclined from one end to the other end along the width direction of the lathe frame.

[0020] In the positive and negative spindle clamping mechanism of a lathe as described above, the angle between the upper end surface of the lateral movable seat and the end surface of the lathe frame is α, wherein the value of α is: 15°≤α≤60°.

[0021] The beneficial effects of the utility model are as follows: the application has a simple structure, and by correspondingly arranging a fixed spindle clamping group and a mobile clamping group on the transverse movable seat for use in combination, the two ends of the workpiece can be clamped to ensure the stability of the workpiece, which is practical and convenient; and the mobile clamping group can be driven to move by the transverse driving group to adjust the distance between the two, which is convenient for processing workpieces of various specifications, and is practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1This is one of the structural schematic diagrams of a positive and negative spindle clamping mechanism of a lathe in an embodiment of the utility model.

[0024] Figure 2 This is the second structural schematic diagram of the positive and negative spindle clamping mechanism of a lathe according to an embodiment of the utility model.

[0025] Figure 3 It is a structural exploded view of a positive and negative spindle clamping mechanism of a lathe according to an embodiment of the utility model. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] See also Figures 1 to 3 As shown, the embodiment of the present application provides a positive and negative spindle clamping mechanism for a lathe, comprising:

[0028] A lathe frame 1, mounted on a lathe;

[0029] A transverse moving seat 2 is arranged on the lathe frame 1;

[0030] A fixed spindle clamping group 3 is provided on one side of the transverse moving seat 2 and is used to clamp one end of the workpiece;

[0031] A movable clamping group 4 is slidably disposed on the transverse movable seat 2 and is arranged opposite to the fixed spindle clamping group 3, and is used for clamping the other end of the workpiece;

[0032] The transverse driving group 5 is disposed on the transverse moving seat 2 , and is used to drive the movable clamping group 4 to move along the length direction of the transverse moving seat 2 to approach or move away from the fixed spindle clamping group 3 .

[0033] By correspondingly arranging a fixed spindle clamping group 3 and a mobile clamping group 4 on the transverse movable seat 2 for use in conjunction with each other, both ends of the workpiece can be clamped to ensure the stability of the workpiece, which is practical and convenient; and the mobile clamping group 4 can be driven to move by the transverse driving group 5 to adjust the distance between the two, which is convenient for processing workpieces of various specifications, and is practical and convenient.

[0034] Furthermore, the movable clamping group 4 includes a support plate 41 slidably disposed on the transverse movable seat 2 , a base 42 slidably disposed on the support plate 41 , and a clamping assembly 43 disposed on the base 42 .

[0035] Specifically, the clamping assembly 43 includes a mounting plate 431 disposed on the base 42 , and a negative clamping spindle 432 and a plurality of clamping blocks 433 disposed on the mounting plate 431 .

[0036] When in use, the negative clamping spindle 432 or the clamping block 433 can be selected to cooperate with the fixed spindle clamping group 3 for clamping according to the specific conditions of the workpiece being processed. It has wide applicability and is practical and convenient.

[0037] Furthermore, the support plate 41 is also provided with a front-rear drive group 6 that can drive the base 42 to move along the front-rear direction of the support plate 41. The front-rear drive group 6 drives the base 42 to move, thereby changing the relative position between the negative clamping spindle 432 and the clamping block 433 and the fixed spindle clamping group 3, so that the positions of the negative clamping spindle 432 and the clamping block 433 can be switched with each other, which is practical and convenient.

[0038] Specifically, the front and rear drive group 6 includes a first rotating shaft 61 rotatably arranged on the support plate 41, a first transmission member 62 sleeved on the first rotating shaft 61, and a first driver 63 arranged at one end of the support plate 41 for driving the first rotating shaft 61 to rotate, wherein the first transmission member 62 is connected to the bottom of the base 42.

[0039] The first driver 63 drives the first rotating shaft 61 to rotate, thereby driving the first transmission member 62 to move in the front-rear direction, and then the base 42 moves in the front-rear direction to achieve the position switching between the negative clamping spindle 432 and the clamping block 433, which is practical and convenient.

[0040] More specifically, a stopper 44 is provided at the lower end of the support plate 41. The stopper 44 is provided to prevent the base 42 from being separated from the support plate 41, thereby protecting the components.

[0041] Furthermore, the transverse driving group 5 includes a second rotating shaft 51 rotatably disposed on the transverse moving seat 2, a second transmission member 52 sleeved on the second rotating shaft 51, and a second driver 53 disposed at one end of the transverse moving seat 2 for driving the second rotating shaft 51 to rotate, wherein the second transmission member 52 is connected to the lower end of the movable clamping group 4.

[0042] The second rotating shaft 51 is driven to rotate by the second driver 53, thereby driving the second transmission member 52 to move along the length direction of the transverse moving seat 2, and then realizing the movement of the mobile clamping group 4 along the length direction of the transverse moving seat 2, so as to adjust the distance between the fixed spindle clamping group 3 and the mobile clamping group 4, which is convenient for processing workpieces of various specifications and is practical and convenient.

[0043] Furthermore, the fixed spindle clamping group 3 includes a spindle seat 31 disposed at one end of the transverse moving seat 2 , and a positive clamping spindle 32 disposed on the spindle seat 31 .

[0044] Furthermore, the upper end surface of the transverse movable seat 2 is inclined from one end to the other end along the width direction of the lathe frame 1, which is convenient for employees to disassemble and install components, and is practical and convenient.

[0045] Specifically, the angle between the upper end surface of the transverse moving seat 2 and the end surface of the lathe frame 1 is α, wherein the value of α is: 15°≤α≤60°.

[0046] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the specification and drawings of the present invention, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A positive and negative spindle clamping mechanism for a lathe, characterized in that: Included are: A lathe frame (1), mounted on a lathe; A transverse movable seat (2) is arranged on the lathe frame (1); A fixed spindle clamping group (3) is arranged on one side of the transverse moving seat (2) and is used to clamp one end of the workpiece; A movable clamping group (4) is slidably disposed on the transverse movable seat (2) and is arranged opposite to the fixed spindle clamping group (3) for clamping the other end of the workpiece; A transverse driving group (5) is arranged on the transverse moving seat (2) and is used to drive the movable clamping group (4) to move along the length direction of the transverse moving seat (2) to approach or move away from the fixed spindle clamping group (3).

2. The positive and negative spindle clamping mechanism for a lathe according to claim 1, characterized in that: The movable clamping group (4) comprises a support plate (41) slidably arranged on the transverse movable seat (2), a base (42) slidably arranged on the support plate (41), and a clamping assembly (43) arranged on the base (42).

3. The positive and negative spindle clamping mechanism for a lathe according to claim 2, characterized in that: The clamping assembly (43) comprises a mounting plate (431) arranged on the base (42), and a negative clamping spindle (432) and a plurality of clamping blocks (433) arranged on the mounting plate (431).

4. The positive and negative spindle clamping mechanism for a lathe according to claim 2, characterized in that: The support plate (41) is also provided with a front-rear drive group (6) capable of driving the base (42) to move along the front-rear direction of the support plate (41).

5. The positive and negative spindle clamping mechanism for a lathe according to claim 4, characterized in that: The front and rear drive group (6) comprises a first rotating shaft (61) rotatably arranged on the supporting plate (41), a first transmission member (62) sleeved on the first rotating shaft (61), and a first driver (63) arranged at one end of the supporting plate (41) for driving the first rotating shaft (61) to rotate, wherein the first transmission member (62) is connected to the bottom of the base (42).

6. The positive and negative spindle clamping mechanism for a lathe according to claim 2, characterized in that: The support plate (41) is further provided with a limiting member (44) at the lower end.

7. The positive and negative spindle clamping mechanism for a lathe according to claim 1, characterized in that: The transverse driving group (5) comprises a second rotating shaft (51) rotatably arranged on the transverse moving seat (2), a second transmission member (52) sleeved on the second rotating shaft (51), and a second driver (53) arranged at one end of the transverse moving seat (2) for driving the second rotating shaft (51) to rotate, wherein the second transmission member (52) is connected to the lower end of the movable clamping group (4).

8. The positive and negative spindle clamping mechanism for a lathe according to claim 1, characterized in that: The fixed spindle clamping group (3) comprises a spindle seat (31) arranged at one end of the transverse moving seat (2), and a positive clamping spindle (32) arranged on the spindle seat (31).

9. The positive and negative spindle clamping mechanism for a lathe according to claim 1, characterized in that: The upper end surface of the transverse movable seat (2) is inclined from one end to the other end along the width direction of the lathe frame (1).

10. The positive and negative spindle clamping mechanism for a lathe according to claim 9, characterized in that: The included angle between the upper end surface of the transverse moving seat (2) and the end surface of the lathe frame (1) is α, wherein the value of α is: 15°≤α≤60°.

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