Grinding machine pressing mechanism

Abstract

The utility model discloses a grinding machine pressing mechanism which comprises a working table and a stand column arranged on the working table, a lower supporting assembly is arranged on the working table, an upper supporting assembly is arranged on the stand column, and the position of the upper supporting assembly corresponds to the position of the lower supporting assembly. A workpiece is clamped between the lower supporting assembly and the upper supporting assembly; the lower supporting assembly comprises a rotary table and a suction cup arranged on the rotary table, the rotary table is used for driving the suction cup to rotate, and the suction cup is used for configuring a workpiece; and the upper supporting assembly comprises a driving cylinder body, a driven connecting assembly and a pressing assembly, the driving cylinder body is used for driving the driven connecting assembly to do lifting motion, the pressing assembly is connected with the lower end of the connecting assembly, the pressing assembly is used for being pressed on a workpiece, and the pressing assembly can rotate along with the rotary table. The utility model can ensure that the workpiece does not shift in the machining process, ensure the machining precision and improve the safety.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool accessories, in particular to a grinding machine pressing mechanism. Background Art

[0002] A grinder is a machine tool that uses a grinding tool to grind the surface of a workpiece. It is divided into single-head grinders and double-head grinders according to the number of grinding heads. Among them, a double-head compound grinder, for example, a double-head surface grinder disclosed in CN219005520U, comprises a workbench, an electric slide rail is installed in the middle of the upper end of the workbench, a slider is installed in the electric slide rail, a cylinder is fixed to the top of the slider, a bearing plate is installed on the upper end of the cylinder, an electromagnetic suction cup is installed in the middle of the upper end of the bearing plate, and brackets are fixed on both sides of the upper end of the workbench.

[0003] For this type of double-head grinder, when the two grinding wheels are grinding at the same time, due to the large grinding force, it is difficult to effectively adsorb the workpiece with a single suction cup. Once the workpiece deviates during processing, the processing accuracy of the workpiece cannot be guaranteed at the least, and the workpiece may fly away, resulting in a safety accident at the worst. Utility Model Content

[0004] The utility model aims to avoid the shortcomings of the prior art and provides a grinding machine clamping mechanism which can prevent the workpiece from being offset during processing.

[0005] The utility model solves the technical problem by adopting the following technical solution: a grinding machine clamping mechanism, comprising a workbench and a column arranged on the workbench, the workbench is provided with a lower support assembly, the column is provided with an upper support assembly, the position of the upper support assembly corresponds to the position of the lower support assembly, and the workpiece is clamped between the lower support assembly and the upper support assembly;

[0006] The lower support assembly includes a turntable and a suction cup arranged on the turntable, wherein the turntable is used to drive the suction cup to rotate, and the suction cup is used to arrange the workpiece;

[0007] The upper support assembly includes a driving cylinder, a driven connecting assembly and a clamping assembly. The driving cylinder is used to drive the driven connecting assembly to perform lifting movements. The clamping assembly is connected to the lower end of the connecting assembly. The clamping assembly is used to press on the workpiece, and the clamping assembly can rotate with the turntable.

[0008] In several embodiments, a magnetic conductive block is disposed on the suction cup, and the magnetic conductive block is used to absorb the workpiece.

[0009] In several embodiments, the upper support assembly further includes a fixing frame connected to the column, and the driving cylinder is disposed on the fixing frame.

[0010] In several embodiments, the driven connecting assembly includes an upper fixed seat, a universal connector, a connecting block and an upper connecting seat, the upper fixed seat is connected to the fixed frame, the universal connector is arranged in the upper fixed seat and connected to the output end of the driving cylinder body, the lower end of the universal connector has a spherical surface and is rotatably matched with the connecting block, and the upper connecting seat is used to accommodate the connecting block and is connected to the upper fixed seat.

[0011] In several embodiments, the clamping assembly includes a lower connecting seat, a rotating seat, a base, a connecting frame and a pressure plate, the lower connecting seat is connected to the lower end of the upper connecting seat, the rotating seat sleeve is arranged on the outside of the lower connecting seat and can rotate around the lower connecting seat, the base is arranged below the rotating seat, the connecting frame is arranged below the base, the pressure plate is arranged below the connecting frame, and the pressure plate is in contact with the workpiece.

[0012] In several embodiments, a connection box is provided on one side of the driven connection component, the connection box is connected to the fixing frame, a proximity switch is provided on the connection box, the base has a sensing end facing the connection box, the sensing end has a slope, and the slope faces the proximity switch.

[0013] In several embodiments, a fixing plate is provided under the fixing frame, the fixing plate is provided between the driven connecting component and the connecting box, a limiting column is provided on the base, a limiting groove is provided on the fixing plate, and the limiting column can be inserted into the limiting groove.

[0014] In several embodiments, a guide rod is disposed on the upper fixing seat, and the guide rod is vertically disposed and passes through the fixing frame.

[0015] The beneficial effects of the utility model are:

[0016] The utility model can ensure that the workpiece does not shift during the processing through the bidirectional clamping structure of the lower support component and the upper support component, thereby ensuring the processing accuracy and improving safety.

[0017] The lower support assembly and the upper support assembly of the utility model can drive the workpiece to rotate, so as to realize the processing of four surfaces of the workpiece and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0019] Figure 1 The overall structure of the clamping mechanism of the grinder in this embodiment is schematically shown;

[0020] Figure 2 Schematically shows Figure 1 A structure in another perspective;

[0021] Figure 3 Schematically shows Figure 1 The enlarged structure of the middle and upper support assembly;

[0022] Figure 4 Schematically shows Figure 3 Cross-sectional structure. DETAILED DESCRIPTION

[0023] Below, embodiments of the present invention are described in detail with reference to the accompanying drawings. To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in conjunction with the accompanying drawings is not intended to limit the scope of the present invention for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0025] The clamping mechanism of the grinder in this embodiment includes a workbench 10 and a column 20 arranged on the workbench 10. The column 20 is a C-shaped column structure. The workbench 10 is arranged on a double-head compound grinder for use to clamp and clamp the workpiece and drive the workpiece to rotate. Its maximum clamping force can reach 20000N, and the clamping height, that is, the height of the workpiece that can be processed, is between 10 and 350mm.

[0026] like Figure 1-Figure 2 As shown, specifically, the clamping mechanism of the grinder also includes an upper support assembly 30 and a lower support assembly 40 that are relatively arranged. The upper support assembly 30 is arranged on the column 20, and the lower support assembly 40 is arranged on the workbench 10. The upper support assembly 30 is located directly above the lower support assembly 40, and the workpiece 100 is clamped between the lower support assembly 40 and the upper support assembly 30 for processing.

[0027] Combination Figure 3-Figure 4 As shown, the lower support assembly 40 includes a turntable 41 and a suction cup 42 arranged on the turntable 41, and the suction cup 42 is connected to the output shaft at the top of the turntable 41, so that the turntable 41 is used to drive the suction cup 42 to rotate, that is, when the turntable 41 rotates, the suction cup 42 rotates accordingly, and a magnetic block 43 is provided on the suction cup 42, and the magnetic block 43 is used to adsorb the workpiece 100. The turntable 41 here can adopt a conventional electric rotating table in the field.

[0028] In addition, the upper support assembly 30 includes a driving cylinder 31, a driven connecting assembly 32, a clamping assembly 33 and a fixed frame 35. The fixed frame 35 is connected to the column 20. The driving cylinder 31 here adopts a hydraulic cylinder structure, which is vertically arranged on the fixed frame 35. The driving cylinder 31 is used to drive the driven connecting assembly 32 to make lifting movements. The clamping assembly 33 is connected to the lower end of the connecting assembly. The clamping assembly 33 is used to press on the workpiece 100, and the clamping assembly 33 can rotate with the turntable 41.

[0029] Among them, the driven connecting assembly 32 includes an upper fixed seat 321, a universal connector 322, a connecting block 323 and an upper connecting seat 324, the upper fixed seat 321 is connected to the fixing frame 35, the universal connector 322 is arranged in the upper fixed seat 321 and is connected to the output end of the driving cylinder body 31, the lower end of the universal connector 322 has a spherical surface and is rotatably matched with the connecting block 323, and the upper connecting seat 324 is used to accommodate the connecting block 323 and is connected to the upper fixed seat 321.

[0030] Furthermore, a guide rod 39 is disposed on the upper fixing seat 321 . The guide rod 39 is vertically disposed and passes through the fixing frame 35 . The guide rod 39 can ensure a straightening effect.

[0031] Thus, the universal connector 322 and the connecting block 323 form a universal ball structure, which can absorb the deformation of the column and the assembly error, so that the clamping assembly 33 is always in close contact with the workpiece.

[0032] In addition, the clamping assembly 33 includes a lower connecting seat 331, a rotating seat 332, a base 333, a connecting frame 334 and a pressing plate 335, wherein the lower connecting seat 331 is connected to the lower end of the upper connecting seat 324, the rotating seat 332 is sleeved on the outer side of the lower connecting seat 331 and can rotate around the lower connecting seat 331, and a bearing is arranged between the two for lubrication, wherein the base 333 is arranged below the rotating seat 332, the connecting frame 334 is arranged below the base 333, and the pressing plate 335 is arranged below the connecting frame 334, the pressing plate 335 is in contact with the workpiece 100, and the pressing plate 335 is a straight plate-like structure for pressing on the upper end surface of the workpiece.

[0033] At the same time, a connection box 34 is provided on one side of the driven connection component 32, and the connection box 34 is connected to the fixing frame 35. A proximity switch 36 is provided on the connection box 34. The base 333 has a sensing end 3331 facing the side of the connection box 34. The sensing end 3331 has a slope, and the slope faces the proximity switch 36. Through the cooperation between the proximity switch 36 and the sensing end 3331, it is detected whether the upper support component 30 reaches the uppermost position.

[0034] In addition, a fixing plate 37 is provided under the fixing frame 35, and the fixing plate 37 is provided between the driven connecting component 32 and the connecting box 34. A limiting column 38 is vertically provided on the base 333, and a limiting groove 371 is provided on the fixing plate 37. The limiting column 38 can be inserted into the limiting groove 371, and the cooperation between the limiting column 38 and the limiting groove 371 can provide an extreme position limit.

[0035] Furthermore, the lower end of the column 20 is locked and fixed to one side of the turntable 41 by a clamp 50. The clamp 50 adopts a cylinder model VS0160-MG of Japan Kosemi Co., Ltd., which is a conventional clamping structure in the field and is not further limited here.

[0036] When the utility model is in use, after the workpiece is clamped, the C-shaped column 20 moves toward the turntable 41 until it abuts against it, and the C-shaped column is locked by the clamp, and the cylinder body 31 is driven to press the workpiece downward, and the two side surfaces can be processed; after the processing is completed, the turntable 41 drives the workpiece to rotate 90°, and since the clamping assembly 33 is tightly attached to the workpiece, the rotating seat 332 in the clamping assembly 33 also rotates 90° with the workpiece, and the other two side surfaces are processed after they are in place; after the four surfaces are processed, the cylinder body 31 is driven to rise, and the C-shaped column 20 retreats. Since the hydraulic cylinder has a large clamping force, the C-shaped column will produce a slight deformation when the workpiece is pressed, and there are errors generated during the assembly process, resulting in the final pressing plate 335 being not parallel to the workpiece, and the driven connecting assembly 32 can absorb the column deformation and assembly errors, so that the pressing plate is always tightly attached to the workpiece, ensuring the processing accuracy.

[0037] All the methods described herein can be performed in any suitable order. Any and all examples used, or exemplary language provided herein (such as "for example") are merely to better illustrate the present invention, and are not intended to limit the scope of the present invention, unless the claims are included. The language in the detailed description should not be understood as indicating any essential factors for practicing the present invention that are not claimed.

[0038] The present invention describes preferred embodiments, including the best way to carry out the present invention known to the inventor. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The inventors anticipate that skilled artisans may use such variations as appropriate, and the inventors point out that the present invention may be implemented in other ways than those specifically described herein. Therefore, the present invention includes all improvements included in the spirit and scope of the present invention as defined by the claims. Moreover, unless otherwise stated or clearly contradictory in content, the present invention includes any of the above factors and all possible variations thereof.

Claims

1. A clamping mechanism for a grinding machine, comprising a workbench (10) and a column (20) arranged on the workbench (10), characterized in that: The workbench (10) is provided with a lower support assembly (40), the column (20) is provided with an upper support assembly (30), the position of the upper support assembly (30) corresponds to the position of the lower support assembly (40), and the workpiece (100) is clamped between the lower support assembly (40) and the upper support assembly (30); The lower support assembly (40) comprises a turntable (41) and a suction cup (42) arranged on the turntable (41), wherein the turntable (41) is used to drive the suction cup (42) to rotate, and the suction cup (42) is used to arrange the workpiece (100); The upper support assembly (30) comprises a driving cylinder (31), a driven connecting assembly (32) and a clamping assembly (33); the driving cylinder (31) is used to drive the driven connecting assembly (32) to perform lifting and lowering movements; the clamping assembly (33) is connected to the lower end of the connecting assembly; the clamping assembly (33) is used to press on the workpiece (100), and the clamping assembly (33) can rotate with the turntable (41).

2. A grinding machine clamping mechanism according to claim 1, characterized in that: A magnetic conductive block (43) is arranged on the suction cup (42), and the magnetic conductive block (43) is used for adsorbing the workpiece (100).

3. A grinding machine clamping mechanism according to claim 1, characterized in that: The upper support assembly (30) further comprises a fixing frame (35), the fixing frame (35) being connected to the column (20), and the driving cylinder (31) being arranged on the fixing frame (35).

4. A grinding machine clamping mechanism according to claim 3, characterized in that: The driven connection assembly (32) comprises an upper fixed seat (321), a universal connecting piece (322), a connecting block (323) and an upper connecting seat (324); the upper fixed seat (321) is connected to a fixing frame (35); the universal connecting piece (322) is arranged in the upper fixed seat (321) and is connected to an output end of a driving cylinder (31); the lower end of the universal connecting piece (322) has a spherical surface and is rotatably matched with the connecting block (323); the upper connecting seat (324) is used to accommodate the connecting block (323) and is connected to the upper fixed seat (321).

5. A grinding machine clamping mechanism according to claim 4, characterized in that: The clamping assembly (33) includes a lower connecting seat (331), a rotating seat (332), a base (333), a connecting frame (334) and a pressing plate (335), wherein the lower connecting seat (331) is connected to the lower end of the upper connecting seat (324), the rotating seat (332) is sleeved on the outer side of the lower connecting seat (331) and can rotate around the lower connecting seat (331), the base (333) is arranged below the rotating seat (332), the connecting frame (334) is arranged below the base (333), the pressing plate (335) is arranged below the connecting frame (334), and the pressing plate (335) is in contact with and cooperates with the workpiece (100).

6. A grinding machine clamping mechanism according to claim 5, characterized in that: A connection box (34) is provided on one side of the driven connection component (32), the connection box (34) is connected to a fixing frame (35), a proximity switch (36) is provided on the connection box (34), and the base (333) has a sensing end (3331) on a side facing the connection box (34), the sensing end (3331) has a slope, and the slope faces the proximity switch (36).

7. A grinding machine clamping mechanism according to claim 6, characterized in that: A fixing plate (37) is arranged under the fixing frame (35), and the fixing plate (37) is arranged between the driven connecting component (32) and the connecting box (34). A limiting column (38) is arranged on the base (333), and a limiting groove (371) is arranged on the fixing plate (37), and the limiting column (38) can be inserted into the limiting groove (371).

8. A grinding machine clamping mechanism according to claim 7, characterized in that: The upper fixing seat (321) is provided with a guide rod (39), and the guide rod (39) is vertically arranged and passes through the fixing frame (35).

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