Lathe clamping and rotating main shaft

Abstract

The utility model discloses a lathe clamping rotating main shaft which comprises a lathe frame, a rotating shaft and a rotating shaft, the shaft body is rotationally arranged on the lathe frame, a clamping structure is movably arranged at one end of the shaft body, and the clamping structure comprises a plurality of inclined sliding rails arranged on the inner side wall of one end of the shaft body and a plurality of clamping blocks correspondingly arranged on the inclined sliding rails in a sliding mode; the driving mechanism is movably arranged on the lathe frame, located at one end of the clamping structure and used for driving the multiple clamping blocks to synchronously slide along the corresponding inclined sliding rails so that the multiple clamping blocks can get close to the clamped workpiece or get away from the clamped workpiece to loosen the workpiece. And the rotating mechanism is arranged between the lathe frame and the shaft body and is used for driving the shaft body to rotate. The clamping device is simple in structure, by arranging the driving mechanism, the driving mechanism is started during clamping so as to drive the multiple clamping blocks to synchronously slide along the corresponding inclined sliding rails to get close to each other to clamp a workpiece or get away from each other to loosen the workpiece, manual clamping is not needed, practicability and convenience are achieved, and efficiency and safety are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe clamping spindles, in particular to a lathe clamping rotating spindle. Background Technique

[0002] Numerical control machine tools, abbreviated as CNC machine tools, are automated machine tools equipped with a program control system. Compared with ordinary machine tools, CNC machine tools have the advantages of strong adaptability to processing objects, high processing accuracy, high automation degree of the machine tool, and high reliability. Therefore, CNC machine tools have replaced ordinary machine tools and become the preferred equipment for processing various workpieces.

[0003] At present, the workpiece clamping method of traditional rotating spindles mainly relies on manual clamping. The operation is troublesome, and the clamping process is adjusted manually, which is greatly affected by the operator's experience. Skilled operators can adjust it relatively quickly, while inexperienced operators will spend more time adjusting, resulting in low efficiency. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a lathe clamping rotating spindle.

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

[0006] A lathe clamping rotating spindle, comprising:

[0007] A lathe frame;

[0008] A shaft body, rotatably arranged on the lathe frame, and a clamping structure is movably arranged at one end thereof. The clamping structure includes a plurality of inclined slide rails opened on the inner side wall of one end of the shaft body, and a plurality of clamping blocks correspondingly slidably arranged on the inclined slide rails;

[0009] A driving mechanism, movably arranged on the lathe frame and located at one end of the clamping structure, for driving the plurality of clamping blocks to slide synchronously along the corresponding inclined slide rails to approach each other to clamp the workpiece or move away from each other to loosen the workpiece;

[0010] A rotating mechanism, arranged between the lathe frame and the shaft body, for driving the shaft body to rotate.

[0011] For a lathe clamping rotating spindle as described above, a guiding groove is further provided on one side of the clamping block facing the inclined slide rail, and a guiding rib capable of cooperating with the guiding groove is further provided on the inclined slide rail.

[0012] For a lathe clamping rotating spindle as described above, a clearance groove is further opened between two adjacent inclined slide rails.

[0013] For a lathe clamping rotating spindle as described above, clamping arc surfaces are further respectively provided on the opposite sides of the plurality of clamping blocks.

[0014] A lathe clamping and rotating spindle as described above, the driving mechanism includes a synchronous driving ring sleeved on the shaft body, a plurality of elastic connection components capable of connecting with the corresponding clamping blocks are arranged on the synchronous driving ring, through grooves for respectively allowing the elastic connection components to pass through are further formed on the shaft body, and a telescopic driving component capable of driving the synchronous driving ring to move is further arranged on the lathe frame.

[0015] A lathe clamping and rotating spindle as described above, the telescopic driving component includes a telescopic cylinder arranged on the lathe frame and a transmission smooth track arranged at the output end of the telescopic cylinder, and the synchronous driving ring is slidably embedded on the transmission smooth track.

[0016] A lathe clamping and rotating spindle as described above, the elastic connection component includes a connecting rod arranged on the clamping block, a plurality of connecting seats arranged on the synchronous driving ring, and an elastic member connecting and arranged between the connecting rod and the connecting seat.

[0017] A lathe clamping and rotating spindle as described above, the number of the clamping blocks is 3, and they are arranged in an array along the circumferential side of the inner side wall of the shaft body, and the number of the inclined sliding rails is correspondingly set with the number of the clamping blocks.

[0018] A lathe clamping and rotating spindle as described above, the rotating mechanism includes a transmission gear ring arranged at one end of the shaft body, a driving motor arranged on the lathe frame, and a transmission gear assembly arranged at the output end of the driving motor and in transmission engagement with the transmission gear ring.

[0019] A lathe clamping and rotating spindle as described above, a first bearing group and a second bearing group for rotatably connecting with the lathe frame are further arranged on the shaft body.

[0020] The beneficial effects of the present utility model are: The structure of this application is simple. By setting the driving mechanism, when clamping, the driving mechanism is started to drive a plurality of clamping blocks to slide synchronously along the corresponding inclined sliding rails to approach each other to clamp the workpiece or move away from each other to loosen the workpiece, without manual clamping, which is practical and convenient, and the efficiency and safety are greatly improved. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0022] Figure 1 It is one of the structural schematic diagrams of a lathe clamping and rotating spindle in an embodiment of the present utility model.

[0023] Figure 2 This is the second schematic structural view of the clamping and rotating main shaft of a lathe in an embodiment of the present utility model.

[0024] Figure 3 This is the third schematic structural view of the clamping and rotating main shaft of a lathe in an embodiment of the present utility model (the lathe frame is omitted).

[0025] Figure 4 This is the fourth schematic structural view of the clamping and rotating main shaft of a lathe in an embodiment of the present utility model (the clamping structure and the driving mechanism part).

[0026] Figure 5 This is the schematic structural view of the clamping structure and the driving mechanism in an embodiment of the present utility model.

[0027] Figure 6 This is the schematic structural view of the clamping structure part on the shaft body in an embodiment of the present utility model.

[0028] Figure 7 This is the schematic structural view of the clamping block in an embodiment of the present utility model. Detailed implementation manners

[0029] The technical solutions of the present utility model will be described in detail below with reference to the drawings and embodiments.

[0030] Please refer to Figures 1 to 7 As shown, an embodiment of the present application provides a lathe clamping and rotating main shaft, including:

[0031] A lathe frame 100;

[0032] A shaft body 1, rotatably arranged on the lathe frame 100, and a clamping structure 2 is movably arranged at one end thereof. The clamping structure 2 includes a plurality of inclined sliding rails 21 opened on the inner side wall of one end of the shaft body 1, and a plurality of clamping blocks 22 slidably arranged on the inclined sliding rails 21 correspondingly;

[0033] A driving mechanism 3, movably arranged on the lathe frame 100 and located at one end of the clamping structure 2, for driving the plurality of clamping blocks 22 to slide synchronously along the corresponding inclined sliding rails 21 to approach each other to clamp a workpiece or move away from each other to loosen the workpiece;

[0034] A rotating mechanism 4, arranged between the lathe frame 100 and the shaft body 1, for driving the shaft body 1 to rotate.

[0035] By setting the driving mechanism 3, when clamping, the driving mechanism 3 is started to drive the plurality of clamping blocks 22 to slide synchronously along the corresponding inclined sliding rails 21 to approach each other to clamp a workpiece or move away from each other to loosen the workpiece, without manual clamping, which is practical and convenient, and greatly improves the efficiency and safety.

[0036] Furthermore, a guiding groove 23 is provided on one side of the clamping block 22 facing the inclined sliding rail 21, and a guiding rib 24 that can cooperate with the guiding groove 23 is also provided on the inclined sliding rail 21.

[0037] During clamping, the workpiece is placed in the middle of a plurality of clamping blocks 22, and then the clamping blocks 22 move inward along the guiding rib 24 towards the inside of the shaft body 1. Under the action of the inclined sliding rail 21, the plurality of clamping blocks 22 approach each other to press against the workpiece to complete clamping. When loosening, it is the opposite.

[0038] Specifically, a clearance groove 25 is also formed between two adjacent inclined sliding rails 21. By providing the clearance groove 25, when the clamping blocks 22 approach, their two ends will move on the clearance groove 25, avoiding mutual collision between two adjacent clamping blocks 22 and affecting the clamping effect.

[0039] Specifically, clamping arc surfaces 220 are respectively provided on the opposite sides of the plurality of clamping blocks 22 to fit the surface of the workpiece and make the clamping more stable.

[0040] Furthermore, the driving mechanism 3 includes a synchronous driving ring 31 sleeved on the shaft body 1. A plurality of elastic connection components 32 that can be connected to the corresponding clamping blocks 22 are provided on the synchronous driving ring 31. Through grooves 33 that can respectively allow the elastic connection components 32 to pass through are also formed on the shaft body 1. A telescopic driving component 34 that can drive the synchronous driving ring 31 to move is also provided on the lathe frame 100.

[0041] During clamping, the telescopic driving component 34 is activated to drive the synchronous driving ring 31 to move inward along the shaft body 1. Since the plurality of clamping blocks 22 are respectively connected to the synchronous driving ring 31 through the elastic connection components 32, the plurality of clamping blocks 22 can be driven to move synchronously and approach each other to complete clamping, which is practical and convenient.

[0042] Specifically, the telescopic driving component 34 includes a telescopic cylinder 341 provided on the lathe frame 100 and a transmission smooth track 342 provided at the output end of the telescopic cylinder 341. The synchronous driving ring 31 is slidably embedded on the transmission smooth track 342.

[0043] By slidably embedding the synchronous driving ring 31 on the transmission smooth track 342, during the machining process after clamping, the synchronous driving ring 31 can rotate following the shaft body 1, thus maintaining the clamping state, which is practical and convenient.

[0044] Specifically, the elastic connection component 32 includes a connecting rod 321 provided on the clamping block 22, a plurality of connecting seats 322 provided on the synchronous driving ring 31, and an elastic member 323 connecting and provided between the connecting rod 321 and the connecting seats 322.

[0045] In this embodiment, the number of the clamping blocks 22 is three, and they are arranged in a circumferential array along the inner side wall of the shaft body 1. The number of the inclined slide rails 21 is correspondingly set to the number of the clamping blocks 22.

[0046] Furthermore, the rotating mechanism 4 includes a transmission gear ring 41 provided at one end of the shaft body 1, a driving motor 42 provided on the lathe frame 100, and a transmission gear assembly 43 provided at the output end of the driving motor 42 and in transmission engagement with the transmission gear ring 41.

[0047] During processing, the driving motor 42 is started to drive the transmission gear assembly 43 to rotate, thereby driving the transmission gear ring 41 and the shaft body 1 to rotate, which is practical and convenient.

[0048] Furthermore, a first bearing group 11 and a second bearing group 12 for rotatably connecting with the lathe frame 100 are further provided on the shaft body 1.

[0049] The above are only the embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structures made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A lathe clamping and rotating spindle, characterized in that, Comprising: Lathe frame (100); Shaft body (1), rotatably arranged on the lathe frame (100), with a clamping structure (2) movably arranged at one end thereof. The clamping structure (2) includes a plurality of inclined slide rails (21) opened on the inner side wall of one end of the shaft body (1), and a plurality of clamping blocks (22) slidably arranged on the corresponding inclined slide rails (21); Drive mechanism (3), movably arranged on the lathe frame (100) and located at one end of the clamping structure (2), for driving the plurality of clamping blocks (22) to slide synchronously along the corresponding inclined slide rails (21) to approach each other to clamp the workpiece or move away from each other to loosen the workpiece; Rotation mechanism (4), arranged between the lathe frame (100) and the shaft body (1), for driving the shaft body (1) to rotate.

2. A lathe clamping and rotating spindle according to claim 1, characterized in that: A guiding groove (23) is further arranged on one side of the clamping block (22) facing the inclined slide rail (21), and a guiding rib (24) capable of cooperating with the guiding groove (23) is further arranged on the inclined slide rail (21).

3. A lathe clamping and rotating spindle according to claim 1, characterized in that: An avoidance groove (25) is further opened between two adjacent inclined slide rails (21).

4. A lathe clamping and rotating spindle according to claim 1, characterized in that: Clamping arc surfaces (220) are respectively arranged on the opposite sides of the plurality of clamping blocks (22).

5. A lathe clamping and rotating spindle according to claim 1, characterized in that: The drive mechanism (3) includes a synchronous drive ring (31) sleeved on the shaft body (1), a plurality of elastic connection components (32) capable of connecting with the corresponding clamping blocks (22) are arranged on the synchronous drive ring (31), through grooves (33) capable of respectively allowing the elastic connection components (32) to pass through are further opened on the shaft body (1), and a telescopic drive component (34) capable of driving the synchronous drive ring (31) to move is further arranged on the lathe frame (100).

6. A lathe clamping and rotating spindle according to claim 5, characterized in that: The telescopic drive component (34) includes a telescopic cylinder (341) arranged on the lathe frame (100), and a transmission smooth track (342) arranged at the output end of the telescopic cylinder (341). The synchronous drive ring (31) is slidably embedded on the transmission smooth track (342).

7. A lathe clamping and rotating main shaft according to claim 5, characterized in that: The elastic connection component (32) includes a connecting rod (321) arranged on the clamping block (22), a plurality of connecting seats (322) arranged on the synchronous drive ring (31), and an elastic member (323) connecting and arranged between the connecting rod (321) and the connecting seat (322).

8. A lathe clamping and rotating spindle according to claim 1, wherein: The number of the clamping blocks (22) is 3, and they are arranged in an array along the circumferential side of the inner side wall of the shaft body (1). The number of the inclined slide rails (21) is correspondingly set with the number of the clamping blocks (22).

9. A lathe clamping and rotating spindle according to claim 1, characterized in that: The rotation mechanism (4) includes a transmission gear ring (41) arranged at one end of the shaft body (1), a drive motor (42) arranged on the lathe frame (100), and a transmission gear assembly (43) arranged at the output end of the drive motor (42) and in transmission engagement with the transmission gear ring (41).

10. A lathe clamping and rotating spindle according to claim 1, characterized in that: A first bearing group (11) and a second bearing group (12) for rotatably connecting with the lathe frame (100) are further arranged on the shaft body (1).

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