A tool grinding machine

Abstract

The present invention relates to the technical field of grinders, and in particular to a tool grinder, which solves the shortcomings existing in the prior art and comprises a frame, a mounting frame fixed on the top of the frame, and a base. The frame is provided with a groove, a first motor is fixedly mounted on the top wall of the groove by bolts, an output end of the first motor is connected to a rotating shaft via a coupling, a hollow groove is provided inside the base, a driving gear and a plurality of driven gears which are meshed and connected are respectively arranged inside the hollow groove, a planetary gear structure is adopted to drive multiple fixtures to rotate synchronously through the arrangement of structures such as a bearing component and a grinding wheel mechanism, a turntable and a connecting rod design are adopted, multiple grinding wheels can be synchronously adjusted, and when a second cylinder is started, the rotation angles of multiple grinding wheels can be ensured to move to, thereby ensuring that multiple grinding wheels are kept consistent when being processed simultaneously, eliminating processing errors between workpieces, and thus improving processing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of grinders, and in particular to a tool grinder. Background Art

[0002] A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinders use high-speed rotating grinding wheels for grinding, while a few use other grinding tools such as oilstones, abrasive belts, and free abrasives for processing, such as honing machines, superfinishing machines, belt grinders, grinders, and polishers.

[0003] The grinding machines in the prior art can only process a single workpiece at a time, which is inefficient. The equipment on the market that uses multiple grinding wheels for grinding processing has asynchronous movements of the grinding wheels and the workpieces, large processing errors between workpieces of the same specifications, and low processing accuracy, resulting in uneven quality of the workpieces. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of low efficiency and low machining precision in the prior art and to propose a tool grinder.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A tool grinder comprises a frame, a mounting frame fixed on the top of the frame and a base, the frame is provided with a groove, a first motor is fixedly mounted on the top wall of the groove by bolts, an output end of the first motor is connected to a rotating shaft through a coupling, a hollow groove is provided inside the base, a driving gear and a plurality of driven gears are respectively arranged in meshing connection inside the hollow groove, the driving gear is fixedly sleeved outside the rotating shaft, a plurality of driven gears are fixedly sleeved inside with driven shafts, a bearing plate is welded on the top end of the driven shaft, and symmetrically arranged chucks are slidably mounted on the bearing plate;

[0007] It also includes a bearing assembly, on which a grinding wheel mechanism is provided;

[0008] The bearing assembly includes a lifting plate, the grinding wheel mechanism is set to four groups and arranged symmetrically, the grinding wheel mechanism includes a sliding seat, the sliding seat is slidably set on the lifting plate, a rotating seat is movably connected to the sliding seat through a pin shaft, a motor is fixedly installed inside the rotating seat, the output end of the motor is connected to a grinding wheel spindle through a coupling, and a grinding wheel is provided on the external fixed sleeve of the grinding wheel spindle.

[0009] Preferably, a symmetrically arranged first cylinder is fixedly mounted on the mounting frame by bolts, a first piston rod is arranged inside the first cylinder, and an end of the first piston rod is fixedly connected to the lifting plate.

[0010] Preferably, a through slot is provided inside the lifting plate, and a support beam of an integrally formed structure is provided between the inner walls of the through slot, and a second motor and a fixing frame are fixedly mounted on the top of the support beam, respectively.

[0011] Preferably, the output end of the second motor is connected to an adjusting shaft via a coupling, an external fixed sleeve of the adjusting shaft is provided with a turntable, a plurality of connecting rods evenly distributed in a ring are movably hinged on the turntable, and the other end of the connecting rod is movably hinged to the sliding seat.

[0012] Preferably, a second cylinder is fixedly installed on the top of the fixed frame, a second piston rod is arranged inside the second cylinder, the other end of the second piston rod is fixedly connected to a fixed seat by a screw, a connecting seat is welded on the outer side of the fixed seat, a telescopic rod is movably sleeved inside the connecting seat, the other end of the telescopic rod is fixedly connected to a sliding rod, each sliding rod is slidably arranged on the corresponding sliding seat, and a sliding block is movably hinged on the other end of the sliding rod.

[0013] Preferably, a connecting plate of an integrally formed structure is provided on one side of the rotating seat, a sliding groove is provided on the top of the connecting plate, and the sliding block is slidably connected to the sliding groove.

[0014] Preferably, a sliding hole is opened inside the sliding seat, the sliding rod is embedded in the sliding hole, and the sliding rod passes through the inside of the through groove.

[0015] Preferably, a sliding hole is opened inside the sliding seat, a guide rail is fixed to the bottom of the support beam by countersunk screws, and the sliding seat is slidably connected to the guide rail.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, the grinding wheels are arranged into four groups, and a plurality of chucks corresponding to the grinding wheels are arranged, so that four workpieces can be ground at the same time during the grinding process, thereby improving the work efficiency.

[0018] 2. In the present invention, through the arrangement of structures such as the bearing assembly and the grinding wheel mechanism, a planetary gear structure is adopted to drive multiple fixtures to rotate synchronously. A turntable and connecting rod design is adopted to synchronously adjust multiple grinding wheels. When the second cylinder is started, the rotation angles of multiple grinding wheels can be ensured to move to, thereby ensuring that multiple grinding wheels remain consistent when processed simultaneously, eliminating the processing errors between the workpieces, and thus improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front view of a tool grinder proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the load-bearing assembly proposed by the present invention;

[0021] Figure 3 This is an enlarged view of point A of a tool grinder proposed by the present invention;

[0022] Figure 4 A top view of the lifting plate proposed by the present invention;

[0023] Figure 5 This is a schematic structural diagram of the grinding wheel mechanism of the present invention when in action.

[0024] In the figure: 1 frame, 2 mounting frame, 3 groove, 4 first motor, 5 base, 51 hollow groove, 52 driven gear, 53 driving gear, 54 bearing plate, 55 chuck, 6 first cylinder, 7 bearing assembly, 71 lifting plate, 72 supporting beam, 73 through groove, 74 fixing frame, 75 fixing seat, 76 connecting seat, 77 telescopic rod, 78 sliding rod, 8 grinding wheel mechanism, 81 sliding seat, 82 rotating seat, 83 connecting plate, 84 sliding groove, 85 sliding block, 86 grinding wheel, 9 second motor, 10 turntable, 11 connecting rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the 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 the embodiments.

[0026] Reference Figure 1-5 A tool grinder comprises a frame 1, a mounting frame 2 fixed on the top of the frame 1 and a base 5. The frame 1 is provided with a groove 3. A first motor 4 is fixedly mounted on the top wall of the groove 3 by bolts. The output end of the first motor 4 is connected to a rotating shaft through a coupling. A hollow groove 51 is provided inside the base 5. A driving gear 53 and a plurality of driven gears 52 are respectively arranged in meshing connection inside the hollow groove 51. The driving gear 53 is fixedly sleeved on the outside of the rotating shaft. A plurality of driven gears 52 are fixedly sleeved inside the driven shaft. The top of the driven shaft is welded with A bearing plate 54 is provided with a symmetrically arranged chuck 55 for sliding movement; it also includes a bearing assembly 7, on which a grinding wheel mechanism 8 is arranged; the bearing assembly 7 includes a lifting plate 71, and the grinding wheel mechanism 8 is arranged in four groups and symmetrically, and the grinding wheel mechanism 8 includes a sliding seat 81, and the sliding seat 81 is slidingly arranged on the lifting plate 71, and a rotating seat 82 is movably connected to the sliding seat 81 through a pin shaft, and a motor is fixedly installed inside the rotating seat 82, and the output end of the motor is connected to the grinding wheel spindle through a coupling, and the external fixed sleeve of the grinding wheel spindle is provided with a grinding wheel 86.

[0027] Among them, by setting the grinding wheel 86 into four groups and setting a plurality of chucks 55 corresponding to the grinding wheel 86, four workpieces can be ground at the same time during the grinding process, thereby improving the work efficiency. By setting the structures such as the bearing component 7 and the grinding wheel mechanism 8, the planetary gear structure can be used to drive multiple fixtures to rotate synchronously. The turntable 10 and the connecting rod 11 are designed to synchronously adjust the multiple grinding wheels 86. When the second cylinder is started, it can ensure that the rotation angles of the multiple grinding wheels 86 are moved to, thereby ensuring that the multiple grinding wheels 86 are kept consistent when being processed at the same time, eliminating the processing errors between the workpieces, thereby improving the processing accuracy.

[0028] A symmetrically arranged first cylinder 6 is fixedly installed on the mounting frame 2 by bolts, a first piston rod is arranged inside the first cylinder 6, the end of the first piston rod is fixedly connected to the lifting plate 71, a through groove 73 is opened inside the lifting plate 71, a support beam 72 of an integrally formed structure is arranged between the inner walls of the through groove 73, a second motor 9 and a fixing frame 74 are fixedly installed on the top of the support beam 72, an output end of the second motor 9 is connected to an adjusting shaft through a coupling, a turntable 10 is fixedly sleeved on the outside of the adjusting shaft, a plurality of connecting rods 11 evenly distributed in an annular shape are movably hinged on the turntable 10, the other end of the connecting rod 11 is movably hinged to the sliding seat 81, a second cylinder is fixedly installed on the top of the fixing frame 74, a second piston rod is arranged inside the second cylinder, the other end of the second piston rod is through A fixed seat 75 is fixedly connected by screws, and a connecting seat 76 is welded to the outer side of the fixed seat 75. A telescopic rod 77 is movably sleeved inside the connecting seat 76, and a sliding rod 78 is fixedly connected to the other end of the telescopic rod 77. Each sliding rod 78 is slidably set on the corresponding sliding seat 81, and a slider 85 is movably hinged at the other end of the sliding rod 78. A connecting plate 83 of an integrally formed structure is provided on one side of the rotating seat 82. A sliding groove 84 is provided on the top of the connecting plate 83. The slider 85 is slidably connected to the sliding groove 84. A sliding hole is provided inside the sliding seat 81, and the sliding rod 78 is embedded in the sliding hole, and the sliding rod 78 passes through the inside of the through groove 73. A sliding hole is provided inside the sliding seat 81, and a guide rail is fixed to the bottom of the support beam 72 by a countersunk screw, and the sliding seat 81 is slidably connected to the guide rail.

[0029] In this embodiment, during grinding, each tool workpiece is placed on the chuck 55, and the workpiece is clamped and fixed by the chuck 55, and the chuck 55 is pneumatically driven;

[0030] After the workpiece is fixed, the second motor 9 is started, and the second motor 9 drives the turntable 10 to rotate, and cooperates with the connecting rod 11 and the sliding seat 81 to form a crank connecting rod 11 mechanism, and the position of each sliding seat 81 is synchronously adjusted. Each sliding seat 81 slides so that one side of the grinding wheel 86 contacts the surface of the workpiece, such as Figure 4 As shown, after the adjustment is completed, the second motor 9 stops moving and the grinding process starts;

[0031] Each grinding wheel 86 rotates at high speed under the drive of the motor to grind along the surface of the tool. During the grinding process, the first cylinder 6 drives the bearing assembly 7 to move the grinding wheel 86 downward and feed it. At the same time, the first motor 4 drives the driving gear 53 to rotate. The driving gear 53 can drive each driven gear 52 and the bearing plate 54 and the workpiece fixed on the chuck 55 to rotate synchronously, thereby realizing the function of synchronous grinding.

[0032] In addition, when the grinding wheel 86 needs to be rotated to change the angle, the second cylinder is started, the second piston rod slides, and the fixed seat 75 moves up and down, and the fixed seat 75 slides with the various slide bars 78 indirectly connected thereto, and the slide bars 78 slide along the slide holes in the slide seat 81, and pull the slide block 85 to move up and down, and the rotating seat 82 rotates with the grinding wheel 86 installed thereon under the push of the slide block 85, and the grinding point is changed by adjusting the angle. After the grinding point is changed, the grinding point can be contacted with the workpiece again by adjusting the second motor 9, so that the angle adjustment of multiple grinding wheels 86 can be consistent, eliminating processing errors;

[0033] It should be noted that when adjusting the spacing between each sliding seat 81, the telescopic rod 77 can adaptively slide inside the connecting seat 76, and the mechanisms will not get stuck. In this embodiment, the number of chucks 55 and corresponding grinding wheel mechanisms 8 can be set to more than four, so that simultaneous processing of multiple products can be achieved.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tool grinding machine, comprising a frame (1), a mounting frame (2) fixed on the top of the frame (1), and a base (5), characterized in that: The frame (1) is provided with a groove (3), a first motor (4) is fixedly mounted on the top wall of the groove (3) by means of bolts, an output end of the first motor (4) is connected to a rotating shaft via a coupling, a hollow groove (51) is provided inside the base (5), a driving gear (53) and a plurality of driven gears (52) are respectively arranged in meshing connection inside the hollow groove (51), the driving gear (53) is fixedly sleeved on the outside of the rotating shaft, a plurality of driven gears (52) are fixedly sleeved inside with driven shafts, a bearing plate (54) is welded on the top end of the driven shaft, and symmetrically arranged chucks (55) are slidably mounted on the bearing plate (54); It also includes a bearing assembly (7), on which a grinding wheel mechanism (8) is provided; The bearing assembly (7) comprises a lifting plate (71), the grinding wheel mechanism (8) is arranged in four groups and symmetrically, the grinding wheel mechanism (8) comprises a sliding seat (81), the sliding seat (81) is slidably arranged on the lifting plate (71), a rotating seat (82) is movably connected to the sliding seat (81) via a pin shaft, a motor is fixedly installed inside the rotating seat (82), an output end of the motor is connected to a grinding wheel spindle via a coupling, and a grinding wheel (86) is provided on an external fixed sleeve of the grinding wheel spindle; A through slot (73) is provided inside the lifting plate (71), a support beam (72) of an integrally formed structure is provided between the inner walls of the through slot (73), and a second motor (9) and a fixing frame (74) are fixedly mounted on the top of the support beam (72); A second cylinder is fixedly mounted on the top of the fixing frame (74), a second piston rod is arranged inside the second cylinder, the other end of the second piston rod is fixedly connected to a fixing seat (75) by means of screws, a connecting seat (76) is welded to the outside of the fixing seat (75), a telescopic rod (77) is movably sleeved inside the connecting seat (76), the other end of the telescopic rod (77) is fixedly connected to a sliding rod (78), each sliding rod (78) is slidably arranged on a corresponding sliding seat (81), and the other end of the sliding rod (78) is movably hinged to a slider (85); A connecting plate (83) of an integrally formed structure is provided on one side of the rotating seat (82), a sliding groove (84) is provided on the top of the connecting plate (83), and the sliding block (85) is slidably connected to the sliding groove (84); A sliding hole is provided inside the sliding seat (81), the sliding rod (78) is embedded inside the sliding hole, and the sliding rod (78) passes through the inside of the through slot (73).

2. A tool grinding machine according to claim 1, characterized in that: A symmetrically arranged first cylinder (6) is fixedly mounted on the mounting frame (2) by means of bolts, a first piston rod is arranged inside the first cylinder (6), and an end of the first piston rod is fixedly connected to the lifting plate (71).

3. A tool grinding machine according to claim 2, characterized in that: The output end of the second motor (9) is connected to an adjustment shaft via a coupling, and an external fixed sleeve of the adjustment shaft is provided with a rotating disk (10), and a plurality of connecting rods (11) evenly distributed in an annular shape are movably hinged on the rotating disk (10), and the other end of the connecting rod (11) is movably hinged to the sliding seat (81).

4. A tool grinding machine according to claim 3, characterized in that: A sliding hole is provided inside the sliding seat (81); a guide rail is fixed to the bottom of the support beam (72) via a countersunk screw; and the sliding seat (81) is slidably connected to the guide rail.

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