Automatic typesetting clamp of CNC machining center

Abstract

The utility model discloses an automatic typesetting clamp of a CNC machining center. The automatic typesetting clamp comprises a machining platform, a main guide sliding groove and an auxiliary guide sliding groove, wherein the main guide sliding groove and the auxiliary guide sliding groove are formed in the machining platform. A driving mechanism is arranged in the machining platform, the driving mechanism comprises a driving worm wheel rotationally mounted in the main guide sliding groove, and a driving worm is arranged in front of the driving worm wheel in a meshed mode; a positioning mechanism is arranged in the machining platform and comprises a main positioning sliding base and an auxiliary positioning sliding base, and positioning abutting heads are elastically arranged in the main positioning sliding base and the auxiliary positioning sliding base in a sliding mode. According to the automatic typesetting clamp for the CNC machining center, the main positioning sliding base and the auxiliary positioning sliding base which are distributed inside and outside the top face of the machining platform drive the positioning abutting head to rotate so as to position an annular workpiece after making contact with the main abutting sliding block and the auxiliary abutting sliding block, and the stamping air cylinder drives the stamping head to achieve shaping; and the influence on forming caused by dislocation during stamping is avoided.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, specifically to an automatic layout fixture for CNC machining centers. Background Technology

[0002] CNC machining refers to the method of using computer numerical control technology to control machine tools for precision machining. By controlling milling components according to pre-programmed methods, it can achieve precise cutting, drilling, milling, turning and other operations on workpieces. This type of CNC machining is mainly used for machining irregular and irregular workpieces, and the workpieces are positioned using corresponding fixtures before machining.

[0003] The invention disclosed in CN110303353A is a novel CNC fixture. Through a series of structural designs, the device can perform stamping processing on the clamping part by cooperating with the mold when clamping thin steel plates and iron plates, which saves some processing steps and improves processing efficiency. Furthermore, by installing a vibration damping device in the fixture, the impact on the device is reduced and the service life of the fixture is extended.

[0004] However, the above-mentioned fixtures for CNC machining equipment still have the following problems during use: Although the workpiece is positioned by equidistant jaws to achieve rotational machining, this type of jaw positioning mechanism cannot effectively and stably clamp irregularly shaped workpieces. At the same time, due to the eccentric state of the irregularly shaped workpiece during rotation, some jaws are prone to displacement, affecting the stability of machining.

[0005] Therefore, we propose an automatic layout fixture for CNC machining centers to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide an automatic layout fixture for CNC machining centers. This solves the problem that existing clamping mechanisms, which use clamps installed at equal angles to position workpieces for rotational machining, cannot effectively and stably clamp irregularly shaped workpieces. Furthermore, during machining, the eccentricity of the irregularly shaped workpiece during rotation can easily cause displacement at some clamping points, affecting the stability of the machining process.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic layout fixture for a CNC machining center, comprising a machining platform, and a main guide groove and a secondary guide groove formed inside the machining platform; further comprising:

[0008] The processing platform is equipped with a drive mechanism, which includes a drive worm gear rotatably mounted inside the main guide groove, and a drive worm is engaged in front of the drive worm gear.

[0009] The processing platform is equipped with a positioning mechanism, which includes a main positioning slide and a secondary positioning slide. Both the main positioning slide and the secondary positioning slide are elastically slidably equipped with positioning abutments.

[0010] Preferably, the drive mechanism includes a drive worm gear rotatably mounted inside the front of the machining platform via a bearing, and the right end of the drive worm gear extends through the outside of the machining platform. The rotation of the drive worm gear is used to drive the drive worm wheel, which is positioned inside the guide groove, to rotate.

[0011] Preferably, the driving mechanism includes a driving gear, which is rotatably mounted inside the secondary guide groove via bearings, and transmission gears are rotatably mounted on the left and right sides of the adjacent secondary guide groove and the main guide groove via bearings.

[0012] Preferably, the driving mechanism includes a driving tooth block, which is fixedly mounted at equal angles on the inner wall of the driving worm wheel. The driving worm wheel is meshed with the transmission gears on the left and right sides through the driving tooth block on the inner wall, and the transmission gears and the driving gears are meshed with each other.

[0013] Preferably, the positioning mechanism includes a main positioning slide fixedly mounted at equal angles on the top surface of the drive worm gear, and a secondary positioning slide fixedly mounted at equal angles on the top surface of the drive gear, and the positioning contact heads inside the main positioning slide and the secondary positioning slide are distributed in a staggered state with opposite directions.

[0014] Preferably, the positioning mechanism includes a main contact slider and a secondary contact slider, and the main contact slider and the secondary contact slider are fixedly installed at equal angles on the inner and outer sides of the top surface of the processing platform. The main contact slider and the outer end of the positioning contact head inside the main positioning slide block abut against each other, and the secondary contact slider and the inner end of the positioning contact head inside the secondary positioning slide block abut against each other.

[0015] Preferably, the positioning mechanism includes a stamping cylinder, which is fixedly installed at an equal angle on the top surface of the processing platform, and the stamping cylinder performs shaping processing by contacting the raw material through the stamping head at its inner end.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This automatic layout fixture for CNC machining centers uses main and secondary positioning slides distributed inside and outside the top surface of the machining platform to drive the positioning contact head to rotate, so that it can be positioned for the annular workpiece after contacting the main and secondary contact slides. The stamping cylinder drives the stamping head to achieve shaping, avoiding misalignment during stamping that affects the forming. The specific details are as follows:

[0017] 1. The annular workpiece is placed between the main guide groove and the secondary guide groove on the top surface of the processing platform. The drive worm gear meshes with the drive worm to rotate. At the same time, the drive worm gear drives the meshing transmission gear to rotate through the drive tooth block. The transmission gear meshes with the drive gear 9 in the inner secondary guide groove to rotate. In order to drive the positioning mechanism on the top surface to work through the drive gear and the drive worm gear, so as to position the annular workpiece.

[0018] 2. The drive worm gear and the drive gear rotate in opposite directions, which in turn drives the main positioning slide and the auxiliary positioning slide, which are mounted at equal angles on the top, to rotate. At the same time, the positioning contact heads, which are elastically installed inside the main positioning slide and the auxiliary positioning slide, rotate along with it, and the ends of the positioning contact heads distributed inside and outside the slides come into contact with each other with the corresponding main contact slider and the auxiliary contact slider.

[0019] The inclined main and auxiliary contact sliders press and slide the positioning contact head so that the end of the positioning contact head is pressed against the inner and outer sides of the ring workpiece. At the same time, the stamping end of the stamping cylinder shapes the ring workpiece, improving processing efficiency and avoiding misalignment during stamping that affects the forming. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 3 This is a schematic diagram of the installation structure of the main positioning slide and the auxiliary positioning slide of this utility model;

[0023] Figure 4 This is a schematic diagram of the main positioning slide mounting structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the drive mechanism of this utility model;

[0025] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B.

[0026] In the diagram: 1. Machining platform; 2. Main guide slide; 3. Secondary guide slide; 4. Drive worm gear; 5. Drive worm; 6. Main positioning slide; 7. Secondary positioning slide; 8. Positioning contact head; 9. Drive gear; 10. Transmission gear; 11. Drive gear block; 12. Main contact slider; 13. Secondary contact slider; 14. Stamping cylinder. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-6 The present invention provides the following technical solution:

[0029] Example 1: To solve the problems existing in the use of current CNC machining layout fixtures, this example provides an automatic layout fixture for a CNC machining center, comprising a machining platform 1, and a main guide groove 2 and a secondary guide groove 3 formed inside the machining platform 1; a drive mechanism is provided inside the machining platform 1, and the drive mechanism includes a drive worm gear 4 rotatably mounted inside the main guide groove 2, and a drive worm 5 is meshed in front of the drive worm gear 4; the drive worm 5 included in the drive mechanism is rotatably mounted inside the front of the machining platform 1 through a bearing, and the right end of the drive worm 5 extends through the outside of the machining platform 1, and the rotation of the drive worm 5 is used to drive the drive worm gear 4 inside the main guide groove 2 to rotate.

[0030] The drive mechanism includes a drive gear 9, which is rotatably mounted inside the secondary guide groove 3 via bearings. The adjacent secondary guide groove 3 and the left and right sides of the main guide groove 2 are also rotatably mounted with transmission gears 10 via bearings. The drive mechanism includes a drive tooth block 11, which is fixedly mounted at equal angles on the inner wall of the drive worm wheel 4. The drive worm wheel 4 is meshed with the transmission gears 10 on the left and right sides via the drive tooth block 11 on the inner wall. The transmission gears 10 and the drive gear 9 are meshed with each other.

[0031] like Figures 1-5 As shown, the annular workpiece is placed at the center of the top surface of the processing platform 1. Then, by rotating the drive worm 5 inside the processing platform 1, the drive worm 5 drives the drive worm wheel 4, which is meshed with the main guide groove 2, to rotate. At the same time, the drive worm wheel 4 drives the transmission gear 10, which is meshed with the drive tooth block 11 on the inner wall, to rotate. Meanwhile, the transmission gear 10 meshes with the drive gear 9 in the inner auxiliary guide groove 3 to rotate. In this way, the drive gear 9 and the drive worm wheel 4 drive the positioning mechanism on the top surface to work, so as to position the annular workpiece.

[0032] Example 2: To solve the problems existing in the use of layout fixtures during CNC machining, this example adopts the following technical solution: The machining platform 1 is provided with a positioning mechanism, which includes a main positioning slide 6 and a secondary positioning slide 7. Positioning abutments 8 are elastically slidably arranged inside both the main positioning slide 6 and the secondary positioning slide 7. The main positioning slide 6 is fixedly mounted at equal angles on the top surface of the drive worm gear 4, and the secondary positioning slide 7 is fixedly mounted at equal angles on the top surface of the drive gear 9. The positioning abutments 8 inside the main positioning slide 6 and the secondary positioning slide 7 are distributed in a staggered state with opposite directions.

[0033] The positioning mechanism includes a main contact slider 12 and a secondary contact slider 13, which are fixedly installed at equal angles on the inner and outer sides of the top surface of the processing platform 1. The main contact slider 12 and the outer end of the internal positioning contact head 8 of the main positioning slide 6 are in mutual contact, and the secondary contact slider 13 and the inner end of the internal positioning contact head 8 of the secondary positioning slide 7 are in mutual contact. The positioning mechanism includes a stamping cylinder 14, which is fixedly installed at equal angles on the top surface of the processing platform 1. The stamping cylinder 14 performs shaping processing by contacting the raw material with the stamping head at its inner end.

[0034] like Figures 2-4 , Figure 6 As shown, the drive worm gear 4 and drive gear 9 inside the processing platform 1 rotate in opposite directions, which in turn drives the main positioning slide 6 and the secondary positioning slide 7, which are installed at equal angles on the top, to rotate. At the same time, the positioning contact head 8, which is elastically installed inside the main positioning slide 6 and the secondary positioning slide 7, rotates along with it. The ends of the positioning contact head 8, which are distributed inside and outside, abut against the corresponding main contact slider 12 and secondary contact slider 13. This causes the inclined main contact slider 12 and secondary contact slider 13 to press the positioning contact head 8 to slide, so that the end of the positioning contact head 8 is pressed against the inner and outer sides of the annular workpiece. At the same time, it works with the stamping end of the stamping cylinder 14 to shape the annular workpiece, improve processing efficiency and avoid misalignment during stamping that affects the forming.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A CNC machining center automatic layout clamp, comprising a machining platform (1), and a main guide chute (2) and a secondary guide chute (3) opened in the machining platform (1); further comprising: characterized in that The inside of the machining platform (1) is provided with a driving mechanism, and the driving mechanism comprises a driving worm (4) rotatably installed in the main guide chute (2), and the front of the driving worm (4) is provided with a driving worm (5) in mesh. The inside of the machining platform (1) is provided with a positioning mechanism, and the positioning mechanism comprises a main positioning slide (6) and a secondary positioning slide (7), and the inside of the main positioning slide (6) and the inside of the secondary positioning slide (7) are both provided with a positioning contact head (8) in elastic sliding manner. The driving mechanism comprises a driving worm (5) rotatably arranged in the front inside of the machining platform (1), and the right end of the driving worm (5) is arranged outside the machining platform (1), and the rotation of the driving worm (5) is used to drive the rotation of the driving worm (4) arranged in the main guide chute (2).

2. The automatic layout fixture of CNC machining center according to claim 1, characterized in that: The driving mechanism comprises a driving gear (9), and the driving gear (9) is rotatably arranged in the inside of the secondary guide chute (3) through a bearing, and the left and right sides of the adjacent secondary guide chute (3) and the main guide chute (2) are both rotatably provided with a transmission gear (10) through a bearing.

3. The automatic layout fixture of CNC machining center according to claim 2, characterized in that: The driving mechanism comprises a driving gear block (11), and the driving gear block (11) is fixedly installed at equal angles on the inner wall of the driving worm (4), and the driving worm (4) is connected to the transmission gears (10) on the left and right sides through the driving gear block (11) on the inner wall, and the transmission gears (10) and the driving gear (9) are connected to each other.

4. The automatic layout fixture of CNC machining center according to claim 3, characterized in that: The positioning mechanism comprises a main positioning slide (6) fixedly installed at equal angles on the top surface of the driving worm (4), and the secondary positioning slide (7) of the positioning mechanism is fixedly installed at equal angles on the top surface of the driving gear (9), and the positioning contact heads (8) in the main positioning slide (6) and the secondary positioning slide (7) are distributed in a directionally opposite misaligned state.

5. The automatic layout fixture of CNC machining center according to claim 1, characterized in that: The positioning mechanism comprises a main contact slide block (12) and a secondary contact slide block (13), and the main contact slide block (12) and the secondary contact slide block (13) are respectively fixedly installed at equal angles on the inner and outer sides of the top surface of the machining platform (1), and the outer end of the main contact slide block (12) and the main positioning slide (6) is in contact with each other, and the inner end of the secondary contact slide block (13) and the secondary positioning slide (7) is in contact with each other.

6. The automatic layout fixture of CNC machining center according to claim 5, characterized in that: The positioning mechanism comprises a stamping air cylinder (14), and the stamping air cylinder (14) is fixedly installed at equal angles on the top surface of the machining platform (1), and the stamping air cylinder (14) is in contact with the raw material through the stamping head at the inner end for shaping processing.

7. The automatic layout fixture of CNC machining center according to claim 1, characterized in that: ​

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