Large ratchet wheel machining clamping device

Abstract

The utility model relates to the technical field of ratchet wheel machining and clamping, in particular to a large ratchet wheel machining and clamping device which comprises a machine tool rotating table, a rotating base is rotationally connected to the machine tool rotating table, a driving mechanism for driving the rotating base to rotate is installed on the machine tool rotating table, and a cross groove is formed in the rotating base. Four supporting columns which are distributed in a circumferential array mode relative to the central axis of the rotating base are arranged in the cross-shaped groove in a sliding mode, supporting plates are fixedly connected to the upper sides of the exteriors of the four supporting columns, two sliding plates are symmetrically and fixedly connected to the side ends of the supporting columns, sliding grooves are formed in the side wall of the cross-shaped groove, and the sliding plates are in sliding fit with the corresponding sliding grooves. And large ratchet wheels of different models can be conveniently and rapidly fixed, ratchet wheels of different diameters can be conveniently fixed and machined, the using limitation of the ratchet wheel fixing device is reduced, and the using practicability of the ratchet wheel fixing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ratchet processing and clamping, in particular to a large ratchet processing and clamping device. Background Art

[0002] As is known to all, the existing large ratchets are processed on large wire cutting equipment.

[0003] After searching, the utility model patent with Chinese patent number CN202020091726.1 discloses a large ratchet processing and clamping device, including a positioning base and a clamping accessory installed on the positioning base, the positioning base is connected to the rotary table of the machine tool, a ratchet is installed on the positioning base, and a milling cutter is arranged on the outer circle of the ratchet. The ratchet is processed by the milling cutter. The positioning base has high positioning accuracy and no workpiece needs to be corrected during clamping; the ratchet is easy to install on the positioning base and the clamping time is short; the ratchet is processed by a machining center with high machining accuracy; the high-speed milling processing technology is adopted, which greatly shortens the processing time.

[0004] Since the ratchet is positioned on the positioning base by means of a plurality of first bolts, the disassembly and assembly is complicated due to the large number of bases, which wastes a lot of time. In addition, it is not convenient to fix ratchets of different diameters, resulting in high limitations in its use and reducing its practicality. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a large ratchet processing clamping device to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] The swivel seat is provided with a plurality of support columns, and the support columns are provided with a plurality of support columns, and the support columns are provided with a plurality of support columns, and the support columns are provided with a plurality of support columns.

[0009] To facilitate the adjustment of the relative positions of the four adjustment plates, the adjustment mechanism includes a first motor and a drive box, the drive box is fixedly mounted on the top of the round seat, the first motor is fixedly mounted below the round seat, the output shaft of the first motor extends to one end inside the drive box and is fixedly connected to a first bevel gear, the four adjustment plates are all threadedly connected to a threaded column, the side end of the threaded column is fixedly connected to a rotating shaft, the four rotating shafts are all rotatably connected to the drive box, the four rotating shafts extend to one end inside the drive box and are fixedly connected to a second bevel gear, and the four second bevel gears are all meshed with the first bevel gear.

[0010] In order to facilitate the support of the threaded column, four fixing blocks are fixedly connected to the outer side of the top end of the round seat in a circumferential array, and the ends of the four threaded columns away from the drive box are rotatably connected to the four fixing blocks respectively.

[0011] It has a supporting effect on the adjustment plate to prevent iron filings from falling on the threaded column. The four adjustment plates are provided with an inverted V-shaped groove on the upper side of the threaded column. A V-shaped plate is slidingly provided inside the inverted V-shaped groove. The two ends of the V-shaped plate are respectively connected to the fixed block and the drive box.

[0012] In order to drive the swivel seat to rotate, the driving mechanism includes a second motor, the outside of the swivel seat is fixedly connected to a gear ring, the machine tool rotary table is fixedly connected to a mounting plate, the second motor is fixedly mounted on the mounting plate, the output end of the second motor is fixedly connected to a first gear, and the first gear is meshed with the gear ring.

[0013] In order to prevent iron filings from falling into the interior of the drive box, a box cover is installed on the top of the drive box by screws.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a large ratchet processing clamping device, which has the following beneficial effects:

[0016] The large ratchet processing clamping device hoists the large ratchet to be processed above the swivel seat and outside the four adjustment plates, and makes the large ratchet be located on the upper side of the supporting column and the lower side of the pressing seat, then adjusts the distance between the four adjustment plates and the four supporting columns through the driving mechanism, and makes the side ends of the four adjustment plates contact the inner side wall of the large ratchet, then places the large ratchet above the four supporting columns and the four supporting plates, and then pushes the round seat downward through the electric cylinder, which drives the four adjustment plates to move downward through the adjustment mechanism and presses and fixes the large ratchet, and by adjusting the four supporting columns and the four adjustment plates, it is convenient to quickly fix large ratchets of different models and to fix and process ratchets of different diameters, thereby reducing the limitation of its use and improving the practicality of its use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 3 It is a schematic diagram of the structure of the connection of the swivel seat, support column, support plate, adjustment plate and pressure seat of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the round seat, the first motor, the threaded column and the drive box of the utility model;

[0021] Figure 5 It is a schematic structural diagram of the cooperation among the drive box, the round seat, the first bevel gear and the second bevel gear of the utility model.

[0022] In the figure: 1, machine tool rotary table; 2, swivel seat; 3, cross groove; 4, support column; 5, support plate; 6, slide plate; 7, slide groove; 8, convex plate; 9, adjustment plate; 10, pressure seat; 11, electric cylinder; 12, round seat; 13, first motor; 14, drive box; 15, first bevel gear; 16, threaded column; 17, rotating shaft; 18, second bevel gear; 19, fixing block; 20, V-plate; 21, second motor; 22, gear ring; 23, mounting plate; 24, first gear; 25, box cover. DETAILED DESCRIPTION

[0023] 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. Example

[0024] like Figure 1-5As shown, a large ratchet processing clamping device includes a machine tool rotary table 1. The machine tool rotary table 1 is a prior art disclosed in a comparative document. Its structure and function are not described in detail here. A swivel seat 2 is rotatably connected to the machine tool rotary table 1. A driving mechanism for driving the swivel seat 2 to rotate is installed on the machine tool rotary table 1. The swivel seat 2 is provided with a cross groove 3. Four support columns 4 are arranged in a circular array about the central axis of the swivel seat 2. The upper sides of the four support columns 4 are fixedly connected with support columns. The support plate 5 and the side ends of the support column 4 are symmetrically fixedly connected with two slide plates 6, and the side walls of the cross groove 3 are provided with slide grooves 7. The slide plates 6 slide in cooperation with the corresponding slide grooves 7. The side ends of the four support columns 4 are fixedly connected with convex plates 8, and the outer sliding of the convex plates 8 is provided with adjustment plates 9. The top of each adjustment plate 9 is fixedly connected with a pressure seat 10, and the bottom end of the swivel seat 2 is fixedly connected with four electric cylinders 11, and the bottom ends of the four electric cylinders 11 are fixedly connected with a round seat 12, and the round seat 12 is connected with an adjustment mechanism for driving the positions of the four support columns 4.

[0025] In this embodiment, the large ratchet to be processed is hoisted above the swivel seat 2 and located outside the four adjustment plates 9, and the large ratchet is located on the upper side of the support column 4 and the lower side of the pressure seat 10, and then the distance between the four adjustment plates 9 and the four support columns 4 is adjusted by the driving mechanism, and the side ends of the four adjustment plates 9 are made to contact the inner side wall of the large ratchet, and then the large ratchet is placed above the four support columns 4 and the four support plates 5, and then the round seat 12 is pushed downward by the electric cylinder 11, and the electric cylinder 11 drives the four adjustment plates 9 to move downward through the adjustment mechanism, and presses and fixes the large ratchet, and by adjusting the four support columns 4 and the four adjustment plates 9, it is convenient to quickly fix large ratchets of different models, and it is convenient to fix and process ratchets of different diameters, which reduces the limitations of its use and improves the practicality of its use.

[0026] It should be noted that the adjustment mechanism includes a first motor 13 and a drive box 14. The drive box 14 is fixedly mounted on the top of the round seat 12. A box cover 25 is installed on the top of the drive box 14 by screws. In order to prevent iron filings from falling into the interior of the drive box 14, the first motor 13 is fixedly mounted below the round seat 12. The output shaft of the first motor 13 extends to one end of the interior of the drive box 14 and is fixedly connected to a first bevel gear 15. The four adjustment plates 9 are all threadedly connected with a threaded column 16. The side end of the threaded column 16 is fixedly connected with a rotating shaft 17. The four rotating shafts 17 are all rotatably connected to the drive box 14. The four rotating shafts 17 extend to the interior of the drive box 14. One end of each of the four adjusting plates 9 is fixedly connected to a second bevel gear 18, and the four second bevel gears 18 are all meshed with the first bevel gear 15. The outer side of the top of the round seat 12 is fixedly connected to four fixing blocks 19 in a circumferential array. The ends of the four threaded columns 16 away from the drive box 14 are rotatably connected to the four fixing blocks 19, respectively, to facilitate supporting the threaded columns 16. An inverted V-shaped groove is provided on the upper side of the threaded column 16 on the four adjusting plates 9, and a V-shaped plate 20 is slidably provided inside the inverted V-shaped groove. The two ends of the V-shaped plate 20 are respectively connected to the fixing block 19 and the drive box 14, to support the adjusting plate 9 and prevent iron filings from falling on the threaded column 16.

[0027] In this embodiment, the first bevel gear 15 is driven to rotate by the first motor 13, and the first gear 24 drives the four second bevel gears 18 and the four threaded columns 16 to rotate. Since the threaded column 16 is threadedly connected to the adjustment plate 9, the four threaded columns 16 cause the four adjustment plates 9 to move in opposite directions during the rotation process, so that the spacing between the four adjustment plates 9 can be adjusted according to the inner diameters of the four large gears, and the side ends of the four adjustment plates 9 can be brought into contact with the inner walls of large ratchets of different diameters.

[0028] It should be further explained that the driving mechanism includes a second motor 21, a gear ring 22 is fixedly connected to the outside of the turntable 2, a mounting plate 23 is fixedly connected to the rotary table 1 of the machine tool, the second motor 21 is fixedly mounted on the mounting plate 23, and a first gear 24 is fixedly connected to the output end of the second motor 21, and the first gear 24 is meshed with the gear ring 22.

[0029] In this embodiment, the second motor 21 drives the first gear 24 to rotate, and the first gear 24 drives the gear ring 22, the rotating seat 2 and the large ratchet fixed on the rotating seat 2 to rotate, so that the machine tool rotary table 1 can process the large ratchet.

[0030] In summary, when the large ratchet processing clamping device is used, the large ratchet to be processed is hung above the rotating seat 2 and located outside the four adjustment plates 9, and the large ratchet is located on the upper side of the support column 4 and the lower side of the pressure seat 10, and then the first motor 13 is started, and the first bevel gear 15 is driven to rotate by the first motor 13, and the first gear 24 drives the four second bevel gears 18 and the four threaded columns 16 to rotate. Since the threaded column 16 is threadedly connected to the adjustment plate 9, the four threaded columns 16 cause the four adjustment plates 9 to move in opposite directions during the rotation process, and the spacing between the four adjustment plates 9 is adjusted so that the sides of the four adjustment plates 9 are adjusted. The end contacts the inner wall of the large ratchet, and then the force for lifting the large ratchet is reduced. The large ratchet falls on the top of the four support columns 4 and the four support plates 5 through the action of gravity, and then the round seat 12 is pushed downward by the electric cylinder 11. The electric cylinder 11 drives the four adjustment plates 9 to move downward through the adjustment mechanism, and presses and fixes the large ratchet. Then the large ratchet is processed by the machine tool rotary table 1. During the processing, the first gear 24 is driven to rotate by the second motor 21. The first gear 24 drives the gear ring 22, the swivel seat 2 and the large ratchet fixed on the swivel seat 2 to rotate, and the outer periphery of the large ratchet is processed accordingly.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large ratchet processing clamping device, comprising a machine tool rotary table (1), a swivel seat (2) rotatably connected to the machine tool rotary table (1), characterized in that: The rotary table (1) of the machine tool is provided with a driving mechanism for driving the rotating seat (2) to rotate; the rotating seat (2) is provided with a cross groove (3); four supporting columns (4) are slidably arranged inside the cross groove (3) and are distributed in a circular array about the central axis of the rotating seat (2); the upper sides of the outer sides of the four supporting columns (4) are all fixedly connected with supporting plates (5); the side ends of the supporting columns (4) are symmetrically fixedly connected with two sliding plates (6); the side walls of the cross groove (3) are provided with sliding grooves (7); The slide plate (6) is slidably matched with the corresponding slide groove (7), the side ends of the four support columns (4) are fixedly connected with convex plates (8), the outer side of the convex plates (8) is slidably provided with adjustment plates (9), the top of each adjustment plate (9) is fixedly connected with a pressure seat (10), the bottom end of the rotating seat (2) is fixedly connected with four electric cylinders (11), the bottom ends of the four electric cylinders (11) are fixedly connected with a round seat (12), and the round seat (12) is connected with an adjustment mechanism for driving the positions of the four support columns (4).

2. A large ratchet processing and clamping device according to claim 1, characterized in that: The adjustment mechanism comprises a first motor (13) and a drive box (14); the drive box (14) is fixedly mounted on the top of the round seat (12); the first motor (13) is fixedly mounted below the round seat (12); an end of an output shaft of the first motor (13) extending into the interior of the drive box (14) is fixedly connected to a first bevel gear (15); a threaded column (16) is threadedly connected to each of the four adjustment plates (9); a side end of the threaded column (16) is fixedly connected to a rotating shaft (17); the four rotating shafts (17) are rotatably connected to the drive box (14); and ends of the four rotating shafts (17) extending into the interior of the drive box (14) are fixedly connected to a second bevel gear (18); and the four second bevel gears (18) are meshed with the first bevel gear (15).

3. A large ratchet processing and clamping device according to claim 2, characterized in that: Four fixing blocks (19) are fixedly connected to the outer side of the top of the round seat (12) in a circumferential array, and the ends of the four threaded columns (16) away from the drive box (14) are rotatably connected to the four fixing blocks (19) respectively.

4. A large ratchet processing and clamping device according to claim 3, characterized in that: An inverted V-shaped groove is provided on the upper side of the threaded column (16) on the four adjustment plates (9), a V-shaped plate (20) is slidably provided inside the inverted V-shaped groove, and two ends of the V-shaped plate (20) are respectively connected to the fixed block (19) and the drive box (14).

5. A large ratchet processing and clamping device according to claim 4, characterized in that: The driving mechanism comprises a second motor (21), a gear ring (22) is fixedly connected to the outside of the rotary seat (2), a mounting plate (23) is fixedly connected to the rotary table (1) of the machine tool, the second motor (21) is fixedly mounted on the mounting plate (23), an output end of the second motor (21) is fixedly connected to a first gear (24), and the first gear (24) is meshed with the gear ring (22).

6. A large ratchet processing and clamping device according to claim 5, characterized in that: A box cover (25) is mounted on the top of the driving box (14) by means of screws.

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