Adjustable clamp for grinding machine

Abstract

The utility model discloses an adjustable fixture for a grinding machine, which belongs to the technical field of grinding machines and is characterized in that a first groove is arranged at the bottom end of a supporting table, a plurality of bearings are fixed in the first groove, a plurality of driving rods are arranged in the first groove, and a plurality of sliding groove openings are arranged on the bottom surface of the first groove; sliding rods are connected into the driving rod, the number of the sliding rods is the same as that of the first gears, a plurality of first racks are fixed to the side face of the driving rod, the sliding rods are slidably connected with the sliding groove openings, and one ends of the sliding rods are located on the supporting table and are fixedly provided with clamping plates; a hydraulic cylinder and a driving mechanism for driving the second gears to rotate synchronously are arranged in the first groove, a piston rod of the driving mechanism is connected with a connecting disc, a plurality of connecting rods are fixed to the side face of the connecting disc, the sliding rods and the connecting rods are the same in number, and the other ends of the sliding rods are located on the connecting rods; by means of the clamp, the heights of the multiple clamping plates can be adjusted so as to meet the stable clamping requirement of a high workpiece, design is reasonable, and popularization is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to an adjustable clamp for grinders. Background Art

[0002] A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinders use a high-speed rotating grinding wheel to grind the workpiece surface to be processed. A grinder can perform high-precision grinding with very small surface roughness, and can also perform high-efficiency grinding. During grinding, the workpiece to be processed needs to be fixed to prevent the workpiece from shifting during processing.

[0003] The clamp used in the grinder in the prior art cannot be adjusted in height, which results in a failure to exert a stable clamping force on a higher workpiece, easily causing the workpiece to tilt during processing, thereby affecting its processing accuracy. The clamp has great limitations, and therefore an adjustable clamp for a grinder is urgently needed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an adjustable clamp for a grinder to solve the problem that the clamp used in the existing grinder cannot be adjusted in height, resulting in failure to exert a stable clamping force on a higher workpiece, causing the workpiece to tilt during processing and affecting its processing accuracy.

[0005] In order to solve the above technical problems, the utility model provides an adjustable clamp for a grinding machine, comprising a support table, a first groove is opened at the bottom end of the support table, a plurality of bearings are fixed in the first groove and a plurality of driving rods are provided and a plurality of slide slots are opened on the bottom surface of the first groove, a plurality of the bearings are connected with a rotating rod, a first gear is fixed on the side of the rotating rod and a second gear is fixed on the other end thereof, a sliding rod is slidably connected in the driving rod and the number of the sliding rods is the same as that of the first gear and a plurality of first racks meshing with the first racks are fixed on the side thereof, the sliding rod is slidably connected with the slide slot and one end of the sliding rod is located on the support table and a clamp is fixed thereon;

[0006] A hydraulic cylinder is fixed in the first groove and is provided with a driving mechanism for driving a plurality of the second gears to rotate synchronously. Its piston rod is connected to a connecting plate, a plurality of connecting rods are fixed on the side of the connecting plate, and the sliding rod has the same number as the connecting rod and its other end is located on the connecting rod.

[0007] Optionally, the driving mechanism includes a circular ring and a driving motor, a plurality of second racks meshing with the second gear are fixed on the inner side of the circular ring, a plurality of third racks are fixed on the outer side, the driving motor is connected to the side wall of the first groove via a fixed block, and an output end thereof is connected to a third gear meshing with the plurality of third racks.

[0008] Optionally, the side wall of the first groove is further provided with an annular slide groove, two straight rods are fixed to the bottom end of the circular ring, the other ends of the two straight rods are fixed with connecting plates, and the other ends of the two connecting plates are fixed with arc-shaped sliders located in the annular slide groove.

[0009] Optionally, a first sliding groove is formed on the connecting rod, and a first sliding block located in the first sliding groove is fixed to the other end of the sliding rod.

[0010] Optionally, a pressure rod is connected to the clamping plate via screws, the other end of the pressure rod is movably connected to a round rod, a pressure block is fixed to the bottom end of the round rod, and the pressure block is connected to the pressure rod via a spring surrounding the side of the round rod.

[0011] Optionally, V-shaped grooves are formed on the inner sides of several of the clamping plates.

[0012] Optionally, two mounting blocks are fixed on both sides of the bottom end of the support platform, and mounting holes are opened on the mounting blocks.

[0013] The cam is provided with a plurality of toothed wheels, and the plurality of toothed wheels are provided with a plurality of toothed wheels, and the plurality of toothed wheels are provided with a plurality of toothed wheels at the bottom of the plurality of toothed wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the adjustable clamp for a grinding machine provided by the utility model;

[0015] Figure 2 This is a bottom view of the adjustable clamp for a grinding machine provided by the utility model;

[0016] Figure 3 It is a top view of the adjustable clamp for a grinding machine provided by the utility model;

[0017] Figure 4 yes Figure 3 Middle AA section view. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] The utility model provides an adjustable clamp for a grinding machine, the structure of which is as follows Figures 1 to 4As shown, it includes a support platform 1, a first groove 2 is opened at the bottom of the support platform 1, a plurality of bearings 3 are fixed in the first groove 2, and a plurality of driving rods 13 are provided, and a plurality of slide slots 16 are opened on the bottom surface of the first groove 2, a plurality of bearings 3 are connected to the rotating rod 5, a first gear 6 is fixed on the side of the rotating rod 5, and a second gear 7 is fixed on the other end thereof, a sliding rod 15 is slidably connected in the driving rod 13, and the number of the sliding rods 15 is the same as that of the first gear 6, and a plurality of first racks 14 meshing with the first racks 14 are fixed on the side thereof, the sliding rod 15 is slidably connected to the slide slot 16, and one end thereof A clamping plate 17 is fixed on the support table 1; a hydraulic cylinder 18 is fixed in the first groove 2 and is provided with a driving mechanism for driving several second gears 7 to rotate synchronously, and its piston rod is connected to a connecting plate 19, and several connecting rods 20 are fixed on the side of the connecting plate 19. The sliding rod 15 is the same in number as the connecting rod 20 and its other end is located on the connecting rod 20. The piston rod of the hydraulic cylinder 18 drives the connecting plate 19 to move upward so that several connecting rods 20 drive the sliding rod 15 to move upward, and finally several clamping plates 17 move upward to be suitable for higher workpieces. The use of an adjustable clamp for a grinder can adjust the height of several clamping plates to meet the stable clamping requirements of higher workpieces, ensuring that they will not tilt during processing and thus affect their processing accuracy. The design is reasonable and easy to promote.

[0022] Specifically, the driving mechanism includes a ring 4 and a driving motor 11. A plurality of second racks 8 meshing with the second gear 7 are fixed on the inner side of the ring 4, and a plurality of third racks 9 are fixed on the outer side. The driving motor 11 is connected to the side wall of the first groove 2 through a fixed block 10, and its output end is connected to a third gear 12 meshing with the plurality of third racks 9. The third gear 12 is driven by the output end of the driving motor 11 to mesh with the plurality of third racks 9 so that the ring 4 rotates to drive the plurality of second racks 8 to mesh with the plurality of second gears 7. At this time, the plurality of first gears 6 are meshed with the plurality of first racks 14. Finally, the plurality of driving rods 13 drive the clamping plate 17 to move inward through the sliding rod 15 to clamp the workpiece.

[0023] Furthermore, an annular groove 23 is formed on the side wall of the first groove 2, and two straight rods 24 are fixed to the bottom end of the ring 4. A connecting plate 25 is fixed to the other end of the two straight rods. An arc-shaped slider 26 located in the annular groove 23 is fixed to the other end of the two connecting plates 25 for supporting the rotation of the ring 4.

[0024] Furthermore, a first sliding groove 21 is formed on the connecting rod 20, and a first sliding block 22 located in the first sliding groove 21 is fixed to the other end of the sliding rod 15, so that the connecting rod 20 can stably support the sliding rod 15 to move up and down.

[0025] Furthermore, a pressure rod 28 is connected to the clamp 17 by a screw 27, and the other end of the pressure rod 28 is movably connected to a round rod 29, and a pressure block 30 is fixed to the bottom end of the round rod 29. The pressure block 30 is connected to the pressure rod 28 by a spring 31 surrounding the side of the round rod 29. Under the elastic action of the spring 31, the pressure block 30 presses the workpiece to further fix it.

[0026] Furthermore, a V-shaped groove 32 is formed on the inner side of each of the clamping plates 17 to provide a better clamping effect.

[0027] Furthermore, two mounting blocks 33 are fixed on both sides of the bottom end of the support platform 1 , and mounting holes 34 are formed on the mounting blocks 33 to facilitate the installation of the support platform 1 .

[0028] The working principle of the utility model is as follows: first, place the workpiece between several clamping plates 17, then start the hydraulic cylinder 18, the piston rod of which drives the connecting plate 19 to move upward so that several connecting rods 20 drive the slide bar 15 to move upward, and several clamping plates 17 move upward to a suitable position to be suitable for the current workpiece, then start the driving motor 11, the output end of which drives the third gear 12 to mesh with several third racks 9 so that the ring 4 rotates to drive several second racks 8 to mesh with several second gears 7, at this time, several first gears 6 are meshed with several first racks 14, and finally, several driving rods 13 drive the clamping plates 17 to move inward through the slide bar 15 to clamp the workpiece.

[0029] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An adjustable fixture for a grinding machine, comprising a support table (1), characterized in that: The support platform (1) has a first groove (2) at the bottom end, a plurality of bearings (3) are fixed in the first groove (2), a plurality of driving rods (13) are provided and a plurality of slide slots (16) are opened on the bottom surface, a plurality of the bearings (3) are connected to a rotating rod (5), a first gear (6) is fixed on the side of the rotating rod (5) and a second gear (7) is fixed on the other end thereof, a sliding rod (15) is slidably connected in the driving rod (13) and the number of the sliding rods (15) is the same as that of the first gear (6) and a plurality of first racks (14) meshing with the first racks (14) are fixed on the side thereof for transmission, the sliding rod (15) is slidably connected to the slide slot (16) and one end of the sliding rod (15) is located on the support platform (1) and a clamping plate (17) is fixed thereto; A hydraulic cylinder (18) is fixed in the first groove (2) and is provided with a driving mechanism for driving a plurality of the second gears (7) to rotate synchronously, wherein the piston rod is connected to a connecting plate (19), a plurality of connecting rods (20) are fixed to the side of the connecting plate (19), and the sliding rod (15) is the same in number as the connecting rod (20) and the other end of the sliding rod (15) is located on the connecting rod (20).

2. The adjustable fixture for a grinding machine according to claim 1, characterized in that: The driving mechanism comprises a circular ring (4) and a driving motor (11); a plurality of second racks (8) meshing with the second gear (7) are fixed on the inner side of the circular ring (4); a plurality of third racks (9) are fixed on the outer side; the driving motor (11) is connected to the side wall of the first groove (2) via a fixing block (10); and an output end of the driving motor (11) is connected to a third gear (12) meshing with the plurality of third racks (9) for transmission.

3. The adjustable clamp for a grinding machine as claimed in claim 2, characterized in that: The side wall of the first groove (2) is also provided with an annular slide groove (23); two straight rods (24) are fixed to the bottom end of the circular ring (4); the other ends of the two straight rods are fixed with connecting plates (25); the other ends of the two connecting plates (25) are fixed with arc-shaped sliding blocks (26) located in the annular slide groove (23).

4. The adjustable fixture for a grinding machine according to claim 1, characterized in that: The connecting rod (20) is provided with a first sliding groove (21), and the other end of the sliding rod (15) is fixed with a first sliding block (22) located in the first sliding groove (21).

5. The adjustable clamp for a grinding machine according to claim 1, characterized in that: The clamping plate (17) is connected to a pressure rod (28) via a screw (27); the other end of the pressure rod (28) is movably connected to a round rod (29); a pressure block (30) is fixed to the bottom end of the round rod (29); the pressure block (30) is connected to the pressure rod (28) via a spring (31) surrounding the side of the round rod (29).

6. The adjustable clamp for a grinding machine according to claim 1, characterized in that: A V-shaped groove (32) is formed on the inner side of each of the clamping plates (17).

7. The adjustable clamp for a grinding machine according to claim 1, characterized in that: Two mounting blocks (33) are fixed on both sides of the bottom end of the support platform (1), and mounting holes (34) are formed on the mounting blocks (33).

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