Clamp for machining of machining center

Abstract

The utility model discloses a clamp for processing of a processing center, which comprises a base, a driving motor, a bidirectional screw rod and two groups of clamping components, the base is provided with a groove with an upward opening, the bidirectional screw rod rotates in the groove, the driving motor is arranged at one end of the base, and the output end of the driving motor is connected with one end of the bidirectional screw rod. The two clamping assemblies are in threaded connection with the two ends of the bidirectional lead screw, each clamping assembly comprises a clamping seat, a rotating mechanism, a rotating shaft and a plurality of clamping plates, the clamping seats are in threaded connection with the bidirectional lead screw, the rotating mechanisms are arranged on the clamping seats, the rotating mechanisms are connected with the rotating shafts, and the rotating shafts are driven to vertically rotate on the clamping seats; the multiple clamping plates are connected to the periphery of the circumference of the rotating shaft through the fixing plates, and the clamping faces of the clamping plates are arranged to be the surfaces suitable for different workpieces. The fixture can be suitable for fixing workpieces with different sizes and shapes, and is convenient and fast to operate and high in efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a jig used for machining centers. Background Art

[0002] Machining centers evolved from CNC milling machines. The biggest difference between them and CNC milling machines is that machining centers have the ability to automatically exchange machining tools. By installing different-purpose tools on the tool magazine, the machining tool on the spindle can be changed through the automatic tool changer during a single clamping, achieving multiple machining functions.

[0003] When a machining center is in operation, a jig is required to fix the workpiece on the workbench. Currently, the sizes and shapes of the workpieces to be machined vary, and different jigs need to be replaced during fixation, which is cumbersome and reduces work efficiency. Content of the Utility Model

[0004] Aiming at the problems existing in the prior art, the utility model provides a jig for machining centers that can be used to fix workpieces of different sizes and shapes, is convenient and fast to operate, and has high efficiency.

[0005] To achieve the above object, the utility model provides the following technical solution: A jig for machining centers includes a base, a driving motor, a bidirectional lead screw, and two sets of clamping components. An upward-opening groove is provided on the base, and the bidirectional lead screw rotates in the groove. The driving motor is arranged at one end of the base, and the output end of the driving motor is connected to one end of the bidirectional lead screw. The two sets of clamping components are threadedly connected to both ends of the bidirectional lead screw. The clamping component includes a clamping seat, a rotating mechanism, a rotating shaft, and a plurality of clamping plates. The clamping seat is threadedly connected to the bidirectional lead screw. The rotating mechanism is arranged on the clamping seat. The rotating mechanism is connected to the rotating shaft to drive the rotating shaft to rotate vertically on the clamping seat. A plurality of clamping plates are connected to the circumferential periphery of the rotating shaft through fixing plates, and the clamping surfaces of the clamping plates are set to be suitable for the surfaces of different workpieces.

[0006] As a preference of this technical solution, the rotating mechanism includes a rotating motor, a driving gear, and a driven gear. The rotating motor is arranged on the clamping seat. The output shaft of the rotating motor is provided with the driving gear. The rotating shaft rotates on the clamping seat, and the rotating shaft is provided with the driven gear. The driving gear and the driven gear are meshed with each other.

[0007] As a preference of this technical solution, four clamping plates are provided, and the four clamping plates are evenly distributed on the circumferential periphery of the rotating shaft.

[0008] As a preference of this technical solution, the clamping surfaces of the clamping plates are planes and arc surfaces, the radii of the arc surfaces are different, and soft rubber blocks are arranged on the arc surfaces.

[0009] Preferably in this technical solution, the number of clamping plates with a flat clamping surface is one, and the number of those with an arc-shaped clamping surface is three.

[0010] Preferably in this technical solution, the clamping plate and the fixing plate are detachably connected.

[0011] Preferably in this technical solution, an external thread is provided on the surface of the rotating shaft, a sleeve is threadedly sleeved on the surface of the rotating shaft, connecting threaded holes are provided on both the sleeve and the rotating shaft, one end of the fixing plate is connected to the sleeve, and the other end is connected to the clamping plate.

[0012] The beneficial effects of the present utility model: The clamping assembly of the present utility model includes a clamping seat, a rotating mechanism, a rotating shaft, and a plurality of clamping plates. The rotating mechanism is connected to the rotating shaft and drives the rotating shaft to rotate vertically on the clamping seat. The plurality of clamping plates are connected to the circumferential periphery of the rotating shaft through fixing plates. The clamping surfaces of the clamping plates are set to be suitable for the surfaces of different workpieces, capable of adapting to the clamping of workpieces of different sizes and shapes, with firm clamping, convenient and fast adjustment, and improved efficiency. Description of the Drawings

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

[0014] Figure 2 It is a schematic diagram of the connection between the rotating shaft and the clamping plate of the present utility model.

[0015] Figure 3 It is a structural schematic diagram of the clamping assembly of the present utility model.

[0016] Figure 4 is Figure 3 side view of.

[0017] In the figure: 1, base; 2, drive motor; 3, bidirectional lead screw; 4, clamping assembly; 41, clamping seat; 42, rotating shaft; 43, clamping plate; 44, fixing plate; 45, sleeve; 46, driving gear; 47, rotating motor; 48, driven gear; 49, soft rubber block. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-4, a fixture for machining center machining of the present utility model, includes a base 1, a driving motor 2, a bidirectional lead screw 3 and two sets of clamping assemblies 4. A groove with an upward opening is provided on the base 1, and the bidirectional lead screw 3 rotates in the groove. The driving motor 2 is arranged at one end of the base 1, and the output end of the driving motor 2 extends into the groove to connect one end of the bidirectional lead screw 3. The two sets of clamping assemblies 4 are threadedly connected to both ends of the bidirectional lead screw 3. The driving motor 2 drives the clamping assemblies 4 to approach or move away from each other by driving the bidirectional lead screw 3. The clamping assembly 4 includes a clamping seat 41, a rotating mechanism, a rotating shaft 42 and a plurality of clamping plates 43. The clamping seat 41 is threadedly connected to the bidirectional lead screw 3. The rotating mechanism is arranged on the clamping seat 41. The rotating mechanism is connected to the rotating shaft 42 to drive the rotating shaft 42 to rotate vertically on the clamping seat 41. The plurality of clamping plates 43 are connected to the circumferential periphery of the rotating shaft 42 through a fixing plate 44. The clamping surface of the clamping plate 43 is set to be suitable for the surfaces of different workpieces.

[0020] When the present utility model is specifically implemented, the lower end of the rotating shaft 42 rotates on the upper part of the clamping seat 41 through a bearing. The rotating mechanism includes a rotating motor 47, a driving gear 46 and a driven gear 48. The rotating motor 47 is arranged on the clamping seat 41, specifically on the side wall. The output shaft of the rotating motor 47 is key-connected to the driving gear 46, and the driven gear 48 is fixed on the rotating shaft 42. The driving gear 46 and the driven gear 48 are meshed with each other, that is, the rotating motor 47 drives the rotating shaft 42 to rotate through the driving gear 46 and the driven gear 48.

[0021] Four clamping plates 43 are provided in the present utility model, and the four clamping plates 43 are evenly distributed on the circumferential periphery of the rotating shaft 42. The clamping surfaces of the clamping plates 43 are plane and arc surfaces. The number of clamping plates 43 with a plane clamping surface is one, and the number of arc surfaces is three. The plane and arc surfaces can also be set to other numbers according to needs. The radii of the arc surfaces are different, and soft rubber blocks 49 are arranged on the arc surfaces. The soft rubber blocks 49 can adapt to workpieces of different shapes and are more closely attached to the workpiece surface during clamping, making the clamping more stable. The clamping surfaces of the clamping plates 43 can also adopt the surface shapes of existing technologies that adapt to workpieces of different shapes.

[0022] The clamping plate 43 and the fixing plate 44 of the present utility model are detachably connected. Specifically, a screw section can be provided on the end face of the fixing plate 44, and a threaded hole is provided on the clamping plate 43, and the two are threadedly connected. External threads are provided on the surface of the rotating shaft 42, and a sleeve 45 is threadedly sleeved on the surface of the rotating shaft 42. Connecting threaded holes are provided on both the sleeve 45 and the rotating shaft 42. The connecting threaded hole on the sleeve 45 is a counterbore. The sleeve 45 and the rotating shaft 42 are connected by a countersunk head bolt screwed into the connecting threaded hole. One end of the fixing plate 44 is connected to the sleeve 45, and the other end is connected to the clamping plate 43. The connection between the fixing plate 44 and the sleeve 45 can also be set to a detachable structure with a threaded connection.

[0023] When the utility model works, a workpiece is placed on the base 1, the driving motor 2 drives the bidirectional lead screw 3 to rotate, drives the clamping components 4 to approach each other, the clamping plates 43 of the clamping components 4 clamp the workpiece. When it is necessary to clamp workpieces with different sizes and shapes, the rotating motor 47 is started, the driving gear 46 and the driven gear 48 drive the rotating shaft 42 to rotate, and the suitable clamping plate 43 is rotated to the clamping area.

[0024] Finally, it should be noted that the above embodiments are only specific embodiments of the present utility model, used to illustrate the technical solutions of the present utility model, rather than limiting it. The protection scope of the present utility model is not limited thereto. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed by the present utility model can still modify the technical solutions recorded in the foregoing embodiments or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model, and should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A fixture for machining center machining, comprising a base, a driving motor, a bidirectional lead screw and two groups of clamping components. A groove with an upward opening is provided on the base. The bidirectional lead screw rotates in the groove. The driving motor is arranged at one end of the base, and the output end of the driving motor is connected to one end of the bidirectional lead screw. The two groups of clamping components are threadedly connected to both ends of the bidirectional lead screw, and it is characterized in that: The described clamping assembly includes a clamping seat, a rotating mechanism, a rotating shaft, and a plurality of clamping plates. The clamping seat is threadedly connected to the bidirectional lead screw. The rotating mechanism is arranged on the clamping seat. The rotating mechanism is connected to the rotating shaft to drive the rotating shaft to rotate vertically on the clamping seat. The plurality of clamping plates are connected to the circumferential periphery of the rotating shaft through a fixing plate. The clamping surfaces of the clamping plates are configured to be suitable for the surfaces of different workpieces.

2. The fixture used for machining by the machining center according to claim 1, characterized in that: The described rotating mechanism includes a rotating motor, a driving gear, and a driven gear. The rotating motor is arranged on the clamping seat. The output shaft of the rotating motor is provided with the driving gear. The rotating shaft rotates on the clamping seat. The rotating shaft is provided with the driven gear. The driving gear and the driven gear are meshed with each other.

3. The fixture used in the machining center machining according to claim 1, characterized in that: Four clamping plates are provided, and the four clamping plates are evenly arranged on the circumferential periphery of the rotating shaft.

4. The fixture used for machining by the machining center according to claim 1, wherein: The clamping surfaces of the clamping plates are a flat surface and an arc surface. The radii of the arc surfaces are different, and soft rubber blocks are arranged on the arc surfaces.

5. The fixture used in the machining center according to claim 4, characterized in that: The number of clamping plates with a flat clamping surface is one, and the number of clamping plates with an arc surface is three.

6. The fixture used in the machining center machining according to claim 1, characterized in that: The clamping plates and the fixing plate are detachably connected.

7. The fixture for machining used in the machining center according to claim 1, wherein: External threads are provided on the surface of the rotating shaft. A sleeve is threadedly sleeved on the surface of the rotating shaft. Connecting threaded holes are provided on both the sleeve and the rotating shaft. One end of the fixing plate is connected to the sleeve, and the other end is connected to the clamping plate.

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