An automatic centering and clamping device for internal gear ring machining

Abstract

The present invention relates to gear processing equipment, and particularly to an automatic centering and pressing device for internal gear ring gear processing. It consists of a base, an inner ring, an outer ring, a corner oil cylinder, a thin hydraulic cylinder, a pressing plate, a guiding block and rollers. Its working principle: Before automatic centering, the pressing plate is located at the tangential position of the inner ring, and the gear ring is placed on the base of the inner ring. During automatic centering, the outer ring and the inclined plane adjusting block fixedly connected to the outer ring are driven by the thin hydraulic cylinder to rotate. By the circumferential rotation of the inclined plane adjusting block, three evenly distributed rollers (rolling-connected with the guiding blocks on both sides, with clearance fit) are pushed to move along the radial direction of the workpiece, so that the internal gear ring automatically adjusts its position until the center of the gear ring coincides with the center of the workbench, completing the centering. Then, the corner oil cylinder drives the pressing plate fixedly connected thereto to rotate a certain angle, so that one end of the pressing plate presses on the internal gear ring and the other end presses on the outer ring, and then gear processing can be carried out.

Description

Technical Field

[0001] The present invention relates to gear processing equipment, and particularly to an automatic centering and pressing device for internal gear ring gear processing. Background Art

[0002] Internal gears are key components in wind power generation, construction machinery, metallurgical equipment, and ship devices. During the processing of many workpieces, there are requirements for gear processing accuracy and efficiency. Generally, internal gear processing is carried out on a single-piece basis, manually correcting the coaxiality between the workpiece and the machine tool workbench, and mechanically manually pressing the workpiece. The accuracy error of manually correcting the gear ring, the time required to correct the gear ring, and the force of manually tightening the pressure plate to press the workpiece vary from person to person, which is uncontrollable and time-consuming and laborious. Summary of the Invention

[0003] In order to overcome the deficiencies existing in the existing internal gear ring gear processing, the purpose of the present invention is to provide an automatic centering and pressing device for internal gear ring gear processing, which not only has the advantages of simple operation, fast centering speed, fast pressing speed, etc., but also has high production efficiency and good processing accuracy. This device can be installed in cooperation with general numerically controlled gear cutting equipment, reducing the cost of numerically controlled gear cutting machine tools.

[0004] The present invention is achieved through the following technical solutions:

[0005] An automatic centering and pressing device for internal gear ring gear processing, comprising a base 1, an inner ring 2, an outer ring 3, a double-sided pressure plate 5, a workpiece 6, a first through groove 7, a second groove 8, a pressing assembly, an adjusting assembly, a rotary cylinder 11, a rotary cylinder base 12, a tangential thin cylinder base 13, a tangential thin cylinder 14, a side hole 15, and a screw 18. A plurality of screws 18 are provided on the tangential thin cylinder 14. One end of the base 1 is detachably connected to the machine tool workbench, and the other end is detachably connected to the inner ring 2. A plurality of side holes 15 are provided on the side surface of the base 1. The outer ring 3 is movably connected to the inner ring 2. A plurality of first through grooves 7 are provided at one end of the inner ring 2 away from the machine tool workbench. The first through grooves 7 are used for placing the pressing assembly. The second groove 8 is located between two adjacent first through grooves 7. There is a through hole along the side wall of the inner ring 2 in the second groove 8. The adjusting assembly is located between the second groove 8 and this through hole;

[0006] The pressing assembly includes a rotary cylinder 11, a rotary cylinder base 12, a double-sided pressure plate 5, and a pressure wheel 22. The rotary cylinder 11 is fixedly connected to the bottom of the first through groove 7 through the rotary cylinder base 12, and the double-sided pressure plate 5 is detachably installed on the top of the rotary cylinder 11;

[0007] The adjusting component includes a guiding block 4, a roller 9 and an adjusting wedge block 19. One end of the adjusting wedge block 19 is connected in a wedge sliding groove 20 on the outer wall of the outer ring 3. The other end of the adjusting wedge block 19 contacts the roller 9 through an inclined surface 23. A through hole 10 with the same height as the roller is provided on the inner ring 2. The roller 9 is located in the through hole 10 with the same height as the roller. There is one L-shaped guiding block 4 on each of the left and right sides of the roller 9. The right-angled sides of the two guiding blocks 4 are buckled against the outer side wall of the through hole 10 in the opposite direction. The width between the two guiding blocks 4 is the same as the diameter of the roller 9. The number of the first through grooves 7 is six, which are evenly distributed on the upper end surface of the inner ring 2. The angle of the inclined surface 23 is not greater than 30 degrees. There is a through hole on the double-sided pressing plate 5 which is connected with the pin at the top of the rotary cylinder 11. One side of the double-sided pressing plate 5 is connected with a pressing wheel 22 for pressing on the upper surface of the outer ring 3. One end of the base 1 is connected with the T-shaped groove of the machine tool workbench. The number of the outer rings 3 is three, and they are all movably connected with the inner ring 2 through positioning tooth grooves 21 arranged on the inner ring 2. There is a clearance fit between each outer ring 3 and the inner ring 2, and an adjusting component is provided between each outer ring 3 and the inner ring 2.

[0008] The present invention has the following outstanding advantages compared with the prior art:

[0009] The automatic centering and clamping device of the present invention includes a base, an inner ring, an outer ring, a clamping component and an adjusting component. It has a simple structure and is easy to operate. The outer ring and the inclined surface adjusting block fixed to the outer ring are driven to rotate by a thin hydraulic cylinder. The three evenly distributed rollers are pushed to be in rolling connection with the two side guiding blocks through the circumferential rotation of the inclined surface adjusting block. The clearance fit moves along the radial direction of the workpiece, so that the internal gear ring automatically adjusts its position, with a fast centering speed and a fast workpiece clamping speed, improving the machining accuracy and production efficiency. This device can be installed in cooperation with general numerically controlled gear equipment, reducing the cost of numerically controlled machine tools.

[0010] The automatic centering and clamping device of the present invention not only has the advantages of simple operation, fast centering speed, fast clamping speed and strong versatility, but also has high production efficiency and good machining accuracy. This device can be installed in cooperation with general numerically controlled gear equipment, reducing the cost of numerically controlled gear machine tools. Brief Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the automatic centering and clamping device for internal gear ring gear machining adopted by the present invention.

[0012] Figure 2 It is one of the exploded structural diagrams of the automatic centering and clamping device for internal gear ring gear machining adopted by the present invention.

[0013] Figure 3 It is the second exploded structural diagram of the automatic centering and clamping device for internal gear ring gear machining adopted by the present invention.

[0014] Figure 4 This is the third exploded view of the automatic centering and clamping device for internal gear ring machining adopted by the present invention. Specific Embodiments

[0015] The present invention will be further described in detail below with reference to the accompanying drawings. Figure 1 The following shows a specific implementation structure to which the present invention can be applied, but the embodiments of the present invention are not limited thereto.

[0016] As can be seen from Figures 1 to 4 An automatic centering and clamping device for internal gear ring machining includes a base 1, an inner ring 2, an outer ring 3, a double-sided pressing plate 5, a workpiece 6, a first through groove 7, a second groove 8, a pressing component, an adjusting component, a rotary cylinder 11, a rotary cylinder base 12, a tangential thin cylinder base 13, a tangential thin cylinder 14, a side hole 15 and a screw 18. A plurality of screws 18 are provided on the tangential thin cylinder 14. One end of the base 1 is detachably connected to the machine tool workbench, and the other end is detachably connected to the inner ring 2. A plurality of side holes 15 are provided on the side surface of the base 1. The outer ring 3 is movably connected to the inner ring 2. A plurality of first through grooves 7 are provided at one end of the inner ring 2 away from the machine tool workbench. The first through grooves 7 are used to place the pressing component. The second groove 8 is located between two adjacent first through grooves 7. There is a through hole along the side wall of the inner ring 2 in the second groove 8. The adjusting component is located between the second groove 8 and the through hole.

[0017] The pressing component includes a rotary cylinder 11, a rotary cylinder base 12, a double-sided pressing plate 5 and a pressing wheel 22. The rotary cylinder 11 is fixedly connected to the bottom of the first through groove 7 through the rotary cylinder base 12. The double-sided pressing plate 5 is detachably installed on the top of the rotary cylinder 11.

[0018] The adjusting component includes a guide block 4, a roller 9 and an adjusting wedge block 19. One end of the adjusting wedge block 19 is connected in a wedge block sliding groove 20 on the outer wall of the outer ring 3. The other end of the adjusting wedge block 19 contacts the roller 9 through an inclined surface 23. A through hole 10 with the same height as the roller is provided on the inner ring 2. The roller 9 is located in the through hole 10 with the same height as the roller. There is one L-shaped guide block 4 on each of the left and right sides of the roller 9. The right-angled sides of the two guide blocks 4 are abutted against the outer side wall of the through hole 10. The width between the two guide blocks 4 is the same as the diameter of the roller 9. The number of the first through grooves 7 is 6, which are evenly distributed on the upper end surface of the inner ring 2. The angle of the inclined surface 23 is not greater than 30 degrees. There is a through hole on the double-sided pressing plate 5 connected to the pin on the top of the rotary cylinder 11. One side of the double-sided pressing plate 5 is connected with a pressing wheel 22 for pressing on the upper surface of the outer ring 3. One end of the base 1 is connected to the T-shaped groove of the machine tool workbench. The number of the outer rings 3 is 3, and they are all movably connected to the inner ring 2 through the positioning tooth grooves 21 provided on the inner ring 2. There is a clearance fit between each outer ring 3 and the inner ring 2, and there is an adjusting component between each outer ring 3 and the inner ring 2.

[0019] Working principle of the present invention:

[0020] Before automatic centering, the pressure plate is located at the tangential position of the inner ring, and the gear ring is placed on the base of the inner ring. During automatic centering, the outer ring and the inclined plane adjusting block fixedly connected to the outer ring are driven by a thin hydraulic cylinder to rotate. By the circumferential rotation of the inclined plane adjusting block, three evenly distributed rollers (rolling-connected with the guiding blocks on both sides, with clearance fit) are pushed to move along the radial direction of the workpiece, so that the internal gear ring automatically adjusts its position until the center of the gear ring coincides with the center of the workbench, completing the centering. Then, the corner oil cylinder drives the pressure plate fixedly connected thereto to rotate a certain angle, so that one end of the pressure plate presses on the internal gear ring and the other end presses on the outer ring, and then gear processing can be carried out.

[0021] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic centering and clamping device for internal gear ring machining, characterized in that: It includes a base (1), an inner ring (2), an outer ring (3), a double-sided pressing plate (5), a workpiece (6), a first through groove (7), a second groove (8), a pressing assembly, an adjusting assembly, a corner oil cylinder (11), a corner oil cylinder base (12), a tangential thin oil cylinder base (13), a tangential thin oil cylinder (14), a side hole (15) and a screw (18). A plurality of screws (18) are provided on the tangential thin oil cylinder (14). One end of the base (1) is detachably connected to the machine tool workbench, and the other end is detachably connected to the inner ring (2). There are a plurality of side holes (15) on the side surface of the base (1). The outer ring (3) is movably connected to the inner ring (2). There are a plurality of first through grooves (7) at one end of the inner ring (2) away from the machine tool workbench. The first through grooves (7) are used to place the pressing assembly. The second groove (8) is located between two adjacent first through grooves (7). There is a through hole along the side wall of the inner ring (2) in the second groove (8). The adjusting assembly is located between the second groove (8) and this through hole; The pressing assembly includes a corner oil cylinder (11), a corner oil cylinder base (12), a double-sided pressing plate (5) and a pressing wheel (22). The corner oil cylinder (11) is fixedly connected to the bottom of the first through groove (7) through the corner oil cylinder base (12). The double-sided pressing plate (5) is detachably installed on the top of the corner oil cylinder (11); The adjusting assembly includes a guide block (4), a roller (9) and an adjusting wedge block (19). One end of the adjusting wedge block (19) is connected in a wedge block sliding groove (20) on the outer wall of the outer ring (3). The other end of the adjusting wedge block (19) contacts the roller (9) through an inclined surface (23). A through hole (10) with the same height as the roller is provided on the inner ring (2). The roller (9) is located in the through hole (10) with the same height as the roller. There is 1 L-shaped guide block (4) on each of the left and right sides of the roller (9). The right-angle sides of the two guide blocks (4) are back-to-back and clamped on the outer side wall of the through hole (10). The width between the two guide blocks (4) is the same as the diameter of the roller (9). The number of the first through grooves (7) is 6, and they are evenly distributed on the upper end surface of the inner ring (2). The angle of the inclined surface (23) is not greater than 30 degrees. There is a through hole on the double-sided pressing plate (5) connected to the pin on the top of the corner oil cylinder (11). One side of the double-sided pressing plate (5) is connected with a pressing wheel (22) for pressing on the upper surface of the outer ring (3). One end of the base (1) is connected to the T-shaped groove of the machine tool workbench. The number of the outer rings (3) is 3, and they are all movably connected to the inner ring (2) through positioning tooth grooves (21) provided on the inner ring (2). There is a clearance fit between each outer ring (3) and the inner ring (2), and there is an adjusting assembly between each outer ring (3) and the inner ring (2).

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