Tool changing mechanism of grinding wheel library

Abstract

The invention provides a tool changing mechanism for a grinding wheel library, and belongs to the technical field of machining equipment. The tool changing mechanism solves the problems that existing grinding wheel machining equipment is single in working procedure and low in material circulation production efficiency, and is characterized by comprising a bridge type frame provided with a mounting cross beam, a plurality of mounting positions are arranged on the mounting cross beam, mounting cavities are formed in the mounting positions, and grinding wheel assemblies are arranged in the mounting cavities; bearing units are arranged on the two sides of the mounting cavity, an air cylinder ejector rod is arranged at the top in the mounting cavity, a flange positioning groove is formed in the top of the grinding wheel assembly, a numerical control moving unit is arranged at the bottom of the bridge type frame, a clamping main shaft is arranged on the numerical control moving unit, and a workpiece chuck is arranged at the bottom of the numerical control moving unit; the method has the advantages of high production efficiency and wide processing range.

Description

Technical Field

[0001] The invention belongs to the technical field of processing equipment and relates to a tool changing mechanism, in particular to a tool changing mechanism for a grinding wheel magazine. Background Art

[0002] Grinding is a cutting method that uses the high-speed rotation of the grinding wheel as the main motion, and the low-speed rotation and linear movement of the workpiece (or the movement of the grinding head) as the feed motion to cut off the excess metal layer on the workpiece. It has the advantages of high precision, high surface quality, wide applicability, etc.

[0003] The grinding wheel is composed of abrasive, binder and pores, among which the abrasive is responsible for cutting. As the grinding process proceeds, the abrasive will gradually wear and become blunt, which will lead to a decrease in cutting ability, processing efficiency and surface quality. Therefore, the improvement of Wenling processing accuracy requires the use of different grinding wheels for different processing procedures. Summary of the invention

[0004] The purpose of the present invention is to provide a tool changing mechanism for a grinding wheel magazine with multiple tool positions in view of the above problems existing in the prior art.

[0005] The objective of the present invention can be achieved through the following technical solutions: a tool changing mechanism for a grinding wheel magazine, characterized in that it comprises a bridge frame provided with a mounting crossbeam, the mounting crossbeam is provided with a plurality of mounting positions, the mounting positions are provided with a mounting cavity, a grinding wheel assembly is provided in the mounting cavity, supporting units are provided on both sides of the mounting cavity, a cylinder push rod is provided on the top of the mounting cavity, a flange positioning groove is provided on the top of the grinding wheel assembly, a CNC moving unit is provided at the bottom of the bridge frame, a clamping spindle is provided on the CNC moving unit, and a workpiece chuck is provided at the bottom of the CNC moving unit.

[0006] In the above-mentioned grinding wheel magazine tool changing mechanism, the supporting unit is provided with a positioning block, and the positioning block is provided with oppositely arranged guide angles, a limit pin is provided on the top of the positioning block, and a plurality of limit grooves are opened on the grinding wheel assembly.

[0007] In the above-mentioned grinding wheel magazine tool changing mechanism, a cooling unit is provided on the grinding wheel assembly, a plurality of drainage holes are provided on both sides of the cooling unit, a guide cone block is provided on the drainage hole, and a pressurized flow channel is provided between the guide cone block and the drainage port.

[0008] In the above-mentioned grinding wheel magazine tool changing mechanism, a numerically controlled rotating axis is provided at the end of the workpiece chuck.

[0009] In the above-mentioned tool changing mechanism for a grinding wheel magazine, both sides of the mounting crossbeam are provided with integrally formed corner columns.

[0010] Compared with the existing technology, the tool changing mechanism of the grinding wheel magazine controls the spindle through CNC technology, and clamps different grinding wheel assemblies through the spindle, so that the processing equipment can clamp the material and process multiple processes at one time, reducing the time of material circulation and increasing work efficiency. The grinding wheel assembly can be locked and unlocked by CNC-controlled extension and retraction of the cylinder push rod, and the cooling unit on the grinding wheel assembly can compress and guide the coolant to form a water curtain, reducing dust generated during grinding. The processed workpiece can be rotated at multiple angles through the CNC rotating axis, increasing the degree of freedom during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the tool changing mechanism of the grinding wheel magazine.

[0012] Figure 2 It is a structural schematic diagram of the grinding wheel assembly of the tool changing mechanism of the grinding wheel magazine.

[0013] Figure 3 It is a structural diagram of the tool changing mechanism of the grinding wheel magazine.

[0014] Figure 4 It is a structural schematic diagram of the cooling unit of the tool changing mechanism of the grinding wheel magazine.

[0015] In the figure, 1. installation cavity; 2. cylinder push rod; 3. installation beam; 4. installation position; 5. support unit; 6. grinding wheel assembly; 7. positioning block; 8. limit pin; 9. guide inclination angle; 10. corner column; 11. bridge frame; 12. flange positioning groove; 13. cooling unit; 14. limit groove; 15. guide cone block; 16. CNC moving unit; 17. workpiece chuck; 18. CNC rotating axis; 19. clamping spindle; 20. drainage hole; 21. pressurized flow channel. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figure 1 , 2As shown in , 3 and 4, the tool changing mechanism of the grinding wheel magazine comprises a bridge frame 11 provided with a mounting crossbeam 3, a plurality of mounting positions 4 are provided on the mounting crossbeam 3, a mounting cavity 1 is provided on the mounting position 4, a grinding wheel assembly 6 is provided in the mounting cavity 1, supporting units 5 are provided on both sides of the mounting cavity 1, a cylinder push rod 2 is provided on the top of the mounting cavity 1, a flange positioning groove 12 is provided on the top of the grinding wheel assembly 6, a CNC moving unit 16 is provided at the bottom of the bridge frame 11, and a clamping spindle 19 is provided on the CNC moving unit 16. A workpiece chuck 17 is provided at the bottom of the CNC mobile unit 16. During processing, the CNC mobile unit 16 controls the clamping spindle and rotates for processing. When the grinding wheel assembly 6 needs to be replaced, the rotation is stopped and the grinding wheel assembly 6 is moved to the installation cavity 1, and the grinding wheel assembly 6 is clamped with the supporting unit 5. The cylinder push rod 2 is embedded in the flange positioning groove 12 for locking. The clamping spindle 19 unloads the original grinding wheel assembly 6 and moves to the target grinding wheel assembly 6. The clamping spindle 19 docks with the grinding wheel assembly 6 and clamps it, and then subsequent grinding processing is carried out.

[0018] Preferably, a positioning block 7 is provided on the supporting unit 5, and the positioning block 7 is provided with oppositely arranged guide inclination angles 9, a limit pin 8 is provided on the top of the positioning block 7, and a plurality of limit grooves 14 are provided on the grinding wheel assembly 6. When the grinding wheel assembly 6 is moved into the installation cavity 1, the storage positioning is completed by the positioning block 7 and the limit pin 8, and then locked by the top cylinder push rod 2, so that the storage and installation of the grinding wheel assembly 6 can be completed.

[0019] Preferably, a cooling unit 13 is provided on the grinding wheel assembly 6, and a plurality of drainage holes 20 are provided on both sides of the cooling unit 13. A guide cone block 15 is provided on the drainage hole 20, and a pressurized flow channel 21 is provided between the guide cone block 15 and the drain port. The drainage hole 20 is connected to a water source and discharged, and the water flow is squeezed by the guide cone block 15 to form a high-pressure water flow, and the grinding wheel assembly 6 is directionally flushed to increase the processing accuracy.

[0020] Preferably, a numerically controlled rotating shaft 18 is provided at the end of the workpiece chuck 17, and the numerically controlled rotating shaft 18 controls the rotation of the workpiece to increase the degree of freedom in workpiece processing.

[0021] Preferably, both sides of the installation beam 3 are provided with integrally formed corner posts 10, and the corner posts 10 increase the structural strength of the installation beam.

[0022] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0023] Although this article uses more terms such as installation cavity 1, cylinder push rod 2, installation beam 3, installation position 4, support unit 5, grinding wheel assembly 6, positioning block 7, limit pin 8, guide inclination 9, corner column 10, bridge frame 11, flange positioning groove 12, cooling unit 13, limit groove 14, guide cone block 15, CNC moving unit 16, workpiece chuck 17, CNC rotating axis 18, clamping spindle 19, drainage hole 20, pressurized flow channel 21, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A grinding wheel magazine tool changing mechanism, characterized in that: The invention comprises a bridge frame (11) provided with a mounting crossbeam (3), the mounting crossbeam (3) being provided with a plurality of mounting positions (4), the mounting positions (4) being provided with a mounting cavity (1), the mounting cavity (1) being provided with a grinding wheel assembly (6), supporting units (5) being provided on both sides of the mounting cavity (1), the mounting cavity (1) being provided with a cylinder push rod (2) at the top, the grinding wheel assembly (6) being provided with a flange positioning groove (12), a numerical control moving unit (16) being provided at the bottom of the bridge frame (11), a clamping spindle (19) being provided on the numerical control moving unit (16), and a workpiece chuck (17) being provided at the bottom of the numerical control moving unit (16).

2. A grinding wheel magazine tool changing mechanism according to claim 1, characterized in that: The supporting unit (5) is provided with a positioning block (7), and the positioning block (7) is provided with a guide inclination (9) arranged opposite to each other. A limit pin (8) is provided on the top of the positioning block (7), and a plurality of limit grooves (14) are provided on the grinding wheel assembly (6).

3. A grinding wheel magazine tool changing mechanism according to claim 1, characterized in that: The grinding wheel assembly (6) is provided with a cooling unit (13), a plurality of drainage holes (20) are provided on both sides of the cooling unit (13), a guide cone block (15) is provided on the drainage hole (20), and a pressurized flow channel (21) is provided between the guide cone block (15) and the drainage port.

4. A grinding wheel magazine tool changing mechanism according to claim 1, characterized in that: A numerically controlled rotating shaft (18) is provided at the end of the workpiece chuck (17).

5. The tool changing mechanism of the grinding wheel magazine according to claim 1, characterized in that: Integrally formed corner columns (10) are provided on both sides of the installation crossbeam (3).

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