Feeding device of numerical control machine tool

Abstract

The utility model relates to a feeding device of a numerical control machine tool, which comprises a feeding mechanism, a connecting unit, carrying units and a clamping unit, the feeding mechanism comprises a rack, a feeding unit and a switching unit, the feeding unit is arranged on the rack, the switching unit is arranged on the feeding unit, the connecting unit is arranged on the switching unit, the carrying units are symmetrically arranged on the connecting unit, and the clamping unit is arranged on the rack. The clamping unit comprises a clamping part and a driving part, the clamping part is arranged on the connecting unit and is separately arranged on the two sides of the carrying unit, the driving part is arranged between the connecting unit and the clamping part, through cooperation of the connecting unit and the carrying unit, bars can be contained before being grabbed, and then the driving part drives the clamping part; the bar containing part is clamped from the two sides of the carrying unit, then the bar is pushed in for feeding, the clamping part can be driven by the driving part to loosen the bar, the clamping part is matched with a machine tool claw disc to clamp the bar, the bar entering the machine tool claw disc can be pushed without being clamped, carried and pushed, the claw disc is prevented from clamping the clamping jaw, and stable operation of the clamping jaw is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of numerically controlled machine tools, in particular to a feeding device for numerically controlled machine tools. Background Art

[0002] CNC machine tools are automated machine tools consisting of three major parts: the machine tool body, transmission system and CNC system. They usually refer to CNC lathes, CNC milling machines and CNC boring and milling machines. Now, with the development of technology, the loading and unloading of CNC machine tools are gradually replaced by automated equipment instead of manual labor, which improves the degree of automation of the production line.

[0003] Currently, when CNC lathes process pre-slit bars, some bars are slightly bent as a whole. During the transfer from the clamp to the claw plate, the bars are subjected to force at both ends. The clamp is deformed and loosened by the support of the bar, which may cause subsequent clamping instability and even cause the bar to fall off. Utility Model Content

[0004] Based on the above description, the present invention provides a feeding device for a CNC machine tool to solve the problem that the gripping bar material may become loose due to the transfer force.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A feeding device for a CNC machine tool, comprising:

[0007] A feeding mechanism, comprising a frame, a feeding unit and a switching unit, wherein the feeding unit is arranged on the frame, and the switching unit is arranged on the feeding unit;

[0008] a connecting unit, which is provided on the switching unit;

[0009] A supporting unit, symmetrically arranged on the connecting unit, for receiving raw materials;

[0010] The clamping unit comprises a clamping portion and a driving portion, wherein:

[0011] A clamping portion, which is provided on the connecting unit and is separated on both sides of the supporting unit;

[0012] The driving portion is arranged between the connecting unit and the clamping portion.

[0013] On the basis of the above technical solution, the present invention can also be improved as follows.

[0014] Furthermore, the connecting unit includes a fixed plate, a connecting plate 1 and a connecting plate 2, the fixed plate is connected to the switching unit via bolts, the connecting plate 1 is arranged on the fixed plate, and the connecting plate 2 is arranged on the connecting plate 1.

[0015] Furthermore, the supporting unit includes a limiting block and a fastener, wherein a receiving groove is provided at one end of the limiting block, and the fastener is arranged on the other end of the limiting block.

[0016] Furthermore, waist holes are symmetrically opened on the connecting plate 1, and the fastener connects the limit block and the connecting plate 1 through the waist holes, and the limit block is located below the connecting plate 2.

[0017] Furthermore, the clamping portion includes a connecting rod symmetrically arranged on the connecting plate 1, and a clamping piece is provided on the connecting rod.

[0018] Furthermore, the connecting rod is separated on both sides of the limit block, and one end of the clamping member extends between the limit blocks.

[0019] Furthermore, the driving portion includes a driving member arranged on the second connecting plate, and a transmission member is arranged between the driving member and the clamping member.

[0020] Furthermore, the transmission member includes a connecting frame and a connecting joint, the connecting frame is arranged on the output end of the driving member, and the connecting joint is arranged between the connecting frame and the clamping member.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0022] The utility model is provided with a feeding mechanism, a connecting unit, a supporting unit and a clamping unit. Through the cooperation of the connecting unit and the supporting unit, the bar material to be grasped can be continuously approached, so that one end of the bar material enters the supporting unit for accommodation, and then the driving unit drives the clamping part to clamp the part of the bar material accommodated from both sides of the supporting unit. The bar material is then pushed in for feeding. The driving unit can drive the clamping part to release the bar material and cooperate with the machine tool claw plate to clamp the bar material, so that the bar material entering the machine tool claw plate can be pushed forward without clamping, thereby preventing the claw plate from clamping the clamping claw and ensuring the stable operation of the clamping claw. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a feeding device for a CNC machine tool provided in an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the connection between the switching unit and the connecting unit in an embodiment of the present utility model;

[0025] Figure 3 This is a structural diagram of the supporting unit in an embodiment of the present utility model;

[0026] Figure 4 for Figure 3 A structural diagram from another perspective;

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. Feeding mechanism; 11. Frame; 12. Feeding unit; 13. Switching unit; 3. Connecting unit; 31. Fixing plate; 32. Connecting plate 1; 33. Connecting plate 2; 4. Supporting unit; 41. Limiting block; 42. Fastener; 5. Clamping unit; 51. Clamping part; 511. Connecting rod; 512. Clamping part; 52. Driving part; 521. Driving part; 522. Transmission part; 5221. Connecting frame; 5222. Connecting joint. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0031] It will be understood that spatial relational terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under the other elements" or "under it" or "below it" will be oriented as "on" the other elements or features. Therefore, the exemplary terms "under" and "under" can include both upper and lower orientations. In addition, the device can also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0032] See also Figure 1-4 A feeding device for a CNC machine tool includes a feeding mechanism 1, a connecting unit 3, a supporting unit 4 and a clamping unit 5. The feeding mechanism 1 includes a frame 11, a feeding unit 12 is provided on the frame 11, a switching unit 13 is provided on the feeding unit 12, the connecting unit 3 is provided on the switching unit 13, the supporting unit 4 is symmetrically provided on the connecting unit 3, the clamping unit 5 includes a clamping part 51 provided on the connecting unit 3, the clamping part 51 is separated on both sides of the supporting unit 4, and a driving part 52 is provided between the connecting unit 3 and the clamping part 51.

[0033] The loading device of existing CNC lathes generally adopts a multi-station gripping mechanism, which grabs the bar material from the raw material, moves to the machine tool claw plate switching station to grab the finished product, and then completely exchanges the position of the finished product and the bar material. Finally, the bar material is pushed into the claw plate for raw material loading, and the finished product is transferred through the gripping mechanism.

[0034] Based on the above-mentioned feeding motion process, the feeding unit 12 of this embodiment is divided into an X-axis moving platform and a Z-axis moving platform both of which are propelled by a screw, and the switching unit 13 can be installed on the Z-axis moving platform by adopting a helical column gear transmission method, and is installed in conjunction with at least two sets of connecting units 3, supporting units 4 and clamping units 5, corresponding to the switching of raw materials and finished products. When the feeding unit 12 drives the switching unit 13 to descend, through the cooperation of the connecting unit 3 and the supporting unit 4, it can continuously approach the bar to be grasped, so that one end of the bar enters the supporting unit 4 for collection. The driving unit 52 drives the clamping unit 51 to clamp the part of the bar material from both sides of the supporting unit 4, and then the switching unit 13 is raised to drive the grabbed raw material close to the machine tool claw plate. After the supporting unit 4 and the clamping unit 5 take down the finished product, the switching unit 13 replaces the position of the scale plate and the bar material, and pushes the bar material into the claw plate. Finally, the driving unit 52 can drive the clamping unit 51 to release the bar material, and cooperate with the machine tool claw plate to clamp the bar material, so that the bar material entering the machine tool claw plate can be pushed forward without clamping the support, preventing the claw plate from clamping the claws, and ensuring stable operation after the claws are clamped.

[0035] See also Figure 1-4 The connecting unit 3 includes a fixing plate 31, a connecting plate 1 32 and a connecting plate 2 33. The fixing plate 31 is connected to the switching unit 13 by bolts. The connecting plate 1 32 is arranged on the fixing plate 31, and the connecting plate 2 33 is arranged on the connecting plate 1 32.

[0036] The above-mentioned connecting unit 3 is respectively connected to the switching unit 13, the driving part 52 and the clamping part 51. The connecting unit 3 can be composed of a fixed plate 31, a connecting plate 1 32 and a connecting plate 2 33 which are arranged vertically in sequence. The connecting plate 1 32 is arranged on one side of the long side of the fixed plate 31, and the connecting plate 2 33 is arranged on one side of the short side of the connecting plate 2 33. In this way, the supporting unit 4 is connected to the connecting plate 1 32, and the clamping unit 5 is connected to the connecting plate 2 33. Both are located at the outer edge of the switching unit 13, which is convenient for later maintenance and replacement.

[0037] See also Figure 1-4 The supporting unit 4 includes a limit block 41 and a fastener 42. A receiving groove is opened at one end of the limit block 41. The fastener 42 is arranged on the other end of the limit block 41. Waist holes are symmetrically opened on the connecting plate 1 32. The fastener 42 connects the limit block 41 and the connecting plate 1 32 through the waist holes. The limit block 41 is located below the connecting plate 2 33.

[0038] Based on the fact that the supporting unit 4 is installed on the connecting plate 32, in order to adapt to the grabbing of bars of different diameters, this embodiment cooperates with the waist hole through the fastener 42 composed of a bolt and a nut, and combines the limit block 41 with the connecting plate 32. When processing large-diameter bars, the limit block 41 can be loosened by operating the fastener 42, and then the limit block 41 can be moved along the waist hole through the fastener 42. After adjusting to the suitable position, the lower limit block 41 can be re-limited by the fastener 42 to complete the accommodation and support of bars of another diameter.

[0039] See also Figure 1-4 The clamping portion 51 includes a connecting rod 511 symmetrically arranged on the connecting plate 1 32, a clamping member 512 is arranged on the connecting rod 511, the connecting rod 511 is separated on both sides of the limit block 41, and one end of the clamping member 512 extends between the limit blocks 41. The driving portion 52 includes a driving member 521 arranged on the connecting plate 2 33, and a transmission member 522 is arranged between the driving member 521 and the clamping member 512.

[0040] Based on the above-mentioned supporting unit 4 for accommodating the bar material, the clamping member 512 is rotatably installed on both sides of the limit block 41 through the connecting rod 511, and the driving member 521, which is preferably an electric cylinder, drives the transmission member 522 to push the clamping member 512 from both sides of the limit block 41 to the middle, thereby clamping the bar material and limiting it between the limit blocks 41.

[0041] Considering that the driving part 52 drives the clamping member 512 to rotate around the connecting rod 511 from above, the transmission member 522 in this embodiment includes a connecting frame 5221 and a connecting joint 5222, the connecting frame 5221 is arranged on the output end of the driving member 521, and the connecting joint 5222 is arranged between the connecting frame 5221 and the clamping member 512.

[0042] The connecting frame 5221 designed in a gate shape moves on both sides of the limit block 41, and then cooperates with the rotation of the connecting section 5222 connected between the connecting frame 5221 and the clamping member 512. At the same time, the connecting section 5222 remains tilted inward in its initial state. In this way, when the connecting frame 5221 is pushed down by the driving member 521, the connecting section 5222 rotates into the limit block 41, and the clamping member 512 is linked to clamp the bar material.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A feeding device for a CNC machine tool, characterized in that: include A feeding mechanism (1) comprises a frame (11), a feeding unit (12) and a switching unit (13), wherein the feeding unit (12) is arranged on the frame (11), and the switching unit (13) is arranged on the feeding unit (12); a connecting unit (3) disposed on the switching unit (13); A supporting unit (4) is symmetrically arranged on the connecting unit (3) and is used to accommodate raw materials; The clamping unit (5) comprises a clamping portion (51) and a driving portion (52), wherein: A clamping portion (51) is provided on the connecting unit (3) and is separated on both sides of the supporting unit (4); A driving portion (52) is provided between the connecting unit (3) and the clamping portion (51).

2. The feeding device of a CNC machine tool according to claim 1, characterized in that: The connecting unit (3) comprises a fixing plate (31), a connecting plate 1 (32) and a connecting plate 2 (33); the fixing plate (31) is connected to the switching unit (13) via bolts; the connecting plate 1 (32) is arranged on the fixing plate (31); and the connecting plate 2 (33) is arranged on the connecting plate 1 (32).

3. The feeding device of a CNC machine tool according to claim 2, characterized in that: The supporting unit (4) comprises a limiting block (41) and a fastener (42); a receiving groove is provided at one end of the limiting block (41); and the fastener (42) is arranged on the other end of the limiting block (41).

4. The feeding device for a CNC machine tool according to claim 3, characterized in that: The connecting plate 1 (32) is symmetrically provided with waist holes, and the fastener (42) connects the limiting block (41) and the connecting plate 1 (32) through the waist holes, and the limiting block (41) is located below the connecting plate 2 (33).

5. The feeding device of a CNC machine tool according to claim 4, characterized in that: The clamping portion (51) comprises a connecting rod (511) symmetrically arranged on the connecting plate (32), and a clamping piece (512) is arranged on the connecting rod (511).

6. The feeding device for a CNC machine tool according to claim 5, characterized in that: The connecting rod (511) is separated on both sides of the limiting block (41), and one end of the clamping member (512) extends between the limiting blocks (41).

7. The loading device for a CNC machine tool according to claim 6, characterized in that: The driving portion (52) includes a driving member (521) arranged on the second connecting plate (33), and a transmission member (522) is arranged between the driving member (521) and the clamping member (512).

8. The feeding device for a CNC machine tool according to claim 7, characterized in that: The transmission member (522) comprises a connecting frame (5221) and a connecting joint (5222), wherein the connecting frame (5221) is arranged on the output end of the driving member (521), and the connecting joint (5222) is arranged between the connecting frame (5221) and the clamping member (512).

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