Tool for machining front side and back side of gear ring of slewing bearing

Abstract

The utility model relates to a slewing bearing gear ring front face and back face machining tool which comprises a left machine frame (1) and a right machine frame (1), a four-shaft slewing head (2) is arranged on the inner sides of the machine frames (1), a connecting disc (3) is arranged on the four-shaft slewing head (2), supporting plates (4) are arranged on the connecting disc (3), a bridge plate (5) is arranged between the left supporting plate (4) and the right supporting plate (4), and a positioning seat (6) is arranged on the bridge plate (5). And a plurality of pressing plates (7) are arranged above the positioning seat (6). The tool for machining the front face and the back face of the slewing bearing gear ring is simple in structure, convenient to clamp and position, rapid in debugging and switching and capable of achieving automatic turning over of a workpiece, greatly improves production efficiency and effectively guarantees part machining quality.

Description

Technical Field

[0001] The utility model relates to a tool for processing the front and back surfaces of a slewing bearing gear ring, and belongs to the technical field of mechanical processing. Background Art

[0002] The slewing bearing is an important supporting and transmission element required when two parts need to make relative rotational motion and bear axial force, radial force and tipping moment at the same time. It is also called slewing bearing. It is widely used in modern industry, such as radar in military equipment, concrete pump truck in engineering machinery, tower crane in port machinery, ladle rotary table in metallurgical equipment, wind power generation equipment in new energy equipment, etc. It is usually composed of gear ring, seat ring and rolling element. After the forging process, the blank of the gear ring needs rough turning, semi-finishing turning, raceway quenching, finishing turning, gear processing, drilling, grinding, chamfering and other processes to become a qualified part.

[0003] During the processing, since the positioning reference and processing position need to be converted many times, the gear ring needs to be turned over continuously to meet the processing accuracy requirements. At present, the most commonly used method is to turn the workpiece directly by hand. This method has a high labor intensity and is easy to cause fatigue to workers. When the size and mass of the gear ring are large, not only the labor intensity far exceeds the range that workers can bear, but also it will cause great safety hazards, threatening the personal safety of the operating workers, and even making it impossible to complete the turning. Another commonly used method is to use people and cranes to complete the turning, but this method also has shortcomings. Especially when the diameter of the gear ring is large, during the lifting process of the crane hook, the stability of the gear ring cannot be well controlled, there are vibrations and impacts, which inevitably cause the gear ring to be collided and damaged to varying degrees, and in severe cases directly lead to scrapping. In addition, the hook is directly hooked on the raceway, and the contact area between the hook and the workpiece is small, which will cause very large stress and plastic deformation, resulting in a significant increase in the radial runout error and roundness error of the gear ring raceway, thereby affecting the stability of the product during operation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a tooling for processing the front and back sides of a slewing bearing gear ring in response to the above-mentioned prior art. The tooling has a simple structure, is convenient for clamping and positioning, is fast for debugging and switching, can realize automatic turning over of the workpiece, greatly improves production efficiency, and effectively ensures the quality of parts processing.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: a tooling for processing the front and back sides of a slewing bearing gear ring, which includes two left and right frames, a four-axis slewing head is arranged on the inner side of the frame, a connecting disk is arranged on the four-axis slewing head, a supporting plate is arranged on the connecting disk, a bridge plate is arranged between the left and right supporting plates, a positioning seat is arranged on the bridge plate, and a plurality of pressure plates are arranged above the positioning seat.

[0006] Optionally, the connecting plate is connected to the four-axis swivel head via a plurality of bolts, and the left and right sides of the bridge plate are connected to the support plate via bolts.

[0007] Optionally, the support plate is in the shape of an elongated strip, and the elongated support plate is arranged along the front-to-back direction.

[0008] Optionally, the positioning seat includes a bottom plate, a first positioning boss is provided on the bottom plate, a second positioning boss is provided on the first positioning boss, and the first positioning boss and the second positioning boss are arranged concentrically.

[0009] Optionally, a plurality of countersunk holes are provided on the second positioning boss, and the plurality of countersunk holes are distributed in a ring shape. A through hole is downwardly opened at the bottom of the countersunk hole, and the through hole runs through the entire positioning seat. A locking hole is provided at a position corresponding to the through hole on the front side of the bridge plate.

[0010] Optionally, the positioning seat and the bridge plate are connected via a ball lock.

[0011] Optionally, the ball lock includes a locking block and a locking pin, the locking block is fixed in the locking hole by screws, the locking pin is inserted in the through hole, an end cover is provided at the upper end of the locking pin, the end cover is provided in the countersunk hole, a plurality of cavities are provided at the lower part of the locking pin, steel balls are provided in the cavities, and the steel balls cooperate with the locking block.

[0012] Optionally, a pin sleeve is provided in the through hole, and the pin sleeve is sleeved on the locking pin.

[0013] Optionally, the pressure plate is connected to the bridge plate by bolts.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] 1. The utility model has a simple structure, convenient clamping and positioning, fast debugging and switching, and can realize automatic turning over of the workpiece, which greatly improves the production efficiency and effectively ensures the processing quality of parts;

[0016] 2. The positioning seat of the utility model is connected to the bridge plate through a ball lock, which is easy to disassemble and assemble. By replacing different positioning seats, the processing requirements of gear rings of different sizes can be met. In addition, two inner and outer positioning bosses are provided on the positioning seat, which can process gear rings of two sizes, reducing the number of debugging and replacement times of the positioning seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a tooling for processing the front and back surfaces of a slewing bearing gear ring.

[0018] Figure 2 for Figure 1 Top view of the .

[0019] Figure 3 It is a schematic diagram of the connection relationship between the coupling plate and the support plate.

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the middle positioning seat.

[0021] Figure 5 for Figure 4 Top view of the .

[0022] in:

[0023] Rack 1

[0024] Four-axis rotary head 2

[0025] Connection plate 3

[0026] Pallet 4

[0027] Bridge 5

[0028] Keyhole 51

[0029] Positioning seat 6

[0030] Bottom plate 61

[0031] First positioning boss 62

[0032] Second positioning boss 63

[0033] Counterbore 64

[0034] Through hole 65

[0035] Platen 7

[0036] Ball lock 8

[0037] Lock block 81

[0038] Lock pin 82

[0039] End cap 83

[0040] Cavity 84

[0041] Steel ball 85

[0042] Pin Bushing 86

[0043] Ring gear 9. DETAILED DESCRIPTION

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0045] like Figure 1 to Figure 5As shown, a tooling for processing the front and back surfaces of a slewing bearing gear ring in this embodiment comprises two left and right frames 1, a four-axis slewing head 2 is arranged inside the frame 1, a coupling plate 3 is arranged on the four-axis slewing head 2, a supporting plate 4 is arranged on the coupling plate 3, a bridge plate 5 is arranged between the left and right supporting plates 4, a positioning seat 6 is arranged on the bridge plate 5, and a plurality of pressing plates 7 are arranged above the positioning seat 6;

[0046] The coupling plate 3 is connected to the four-axis rotary head 2 through a plurality of bolts;

[0047] The support plate 4 is in the shape of an elongated strip, and the elongated support plate 4 is arranged along the front-to-back direction;

[0048] The left and right sides of the bridge plate 5 are connected to the support plate 4 by bolts;

[0049] The positioning seat 6 comprises a bottom plate 61, a first positioning boss 62 is arranged on the bottom plate 61, a second positioning boss 63 is arranged on the first positioning boss 62, and the first positioning boss 62 and the second positioning boss 63 are arranged concentrically;

[0050] The second positioning boss 63 is provided with a plurality of countersunk holes 64, and the plurality of countersunk holes 64 are distributed in a ring shape;

[0051] The bottom of the countersunk hole 64 is provided with a through hole 65 downwardly, and the through hole 65 runs through the entire positioning seat 6;

[0052] The front side of the bridge plate 5 is provided with a lock hole 51 at a position corresponding to the through hole 65;

[0053] The positioning seat 6 and the bridge plate 5 are connected via a ball lock 8;

[0054] The ball lock 8 includes a lock block 81 and a lock pin 82. The lock block 81 is fixed in the lock hole 51 by screws. The lock pin 82 is inserted in the through hole 65. The upper end of the lock pin 82 is provided with an end cover 83, and the end cover 83 is arranged in the countersunk hole 64. The lower part of the lock pin 82 is provided with a plurality of cavities 84, and the cavities 84 are provided with steel balls 85, and the steel balls 85 cooperate with the lock block 81.

[0055] A pin sleeve 86 is disposed in the through hole 65, and the pin sleeve 86 is sleeved on the lock pin 82;

[0056] The pressure plate 7 is connected to the bridge plate 5 by bolts.

[0057] Working principle:

[0058] When in use, place the gear ring on the positioning seat and fix the gear ring with multiple pressure plates. At this time, rotate the four-axis rotary head to adjust the gear ring to the front side facing upward, and then the front side of the gear ring can be processed; when the front side of the gear ring is processed, rotate the four-axis rotary head to adjust the gear ring to the back side facing upward, and then the back side of the gear ring can be processed.

[0059] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A tool for processing the front and back surfaces of a slewing bearing gear ring, characterized in that: It comprises two left and right frames (1), a four-axis rotary head (2) is arranged inside the frame (1), a connecting plate (3) is arranged on the four-axis rotary head (2), a supporting plate (4) is arranged on the connecting plate (3), a bridge plate (5) is arranged between the left and right supporting plates (4), a positioning seat (6) is arranged on the bridge plate (5), and a plurality of pressing plates (7) are arranged above the positioning seat (6).

2. The front and back surface processing tooling of the slewing bearing gear ring according to claim 1 is characterized in that: The connecting plate (3) is connected to the four-axis swivel head (2) via a plurality of bolts, and the left and right sides of the bridge plate (5) are connected to the supporting plate (4) via bolts.

3. The front and back surface processing tooling of the slewing bearing gear ring according to claim 1 is characterized in that: The support plate (4) is in the shape of an elongated strip, and the elongated support plate (4) is arranged along the front-rear direction.

4. The front and back surface processing tool for a slewing bearing gear ring according to claim 1, characterized in that: The positioning seat (6) comprises a bottom plate (61), a first positioning boss (62) is provided on the bottom plate (61), a second positioning boss (63) is provided on the first positioning boss (62), and the first positioning boss (62) and the second positioning boss (63) are arranged concentrically.

5. The front and back surface processing tool for a slewing bearing gear ring according to claim 4, characterized in that: The second positioning boss (63) is provided with a plurality of countersunk holes (64), the plurality of countersunk holes (64) being distributed in a ring shape, a through hole (65) being provided downwardly at the bottom of the countersunk hole (64), the through hole (65) penetrating the entire positioning seat (6), and a locking hole (51) being provided on the front side of the bridge plate (5) at a position corresponding to the through hole (65).

6. The front and back surface processing tool for a slewing bearing gear ring according to claim 5, characterized in that: The positioning seat (6) and the bridge plate (5) are connected via a ball lock (8).

7. The front and back surface processing tool for a slewing bearing gear ring according to claim 6, characterized in that: The ball lock (8) comprises a locking block (81) and a locking pin (82); the locking block (81) is fixedly arranged in the locking hole (51) by means of screws; the locking pin (82) is inserted into the through hole (65); an end cover (83) is arranged at the upper end of the locking pin (82); the end cover (83) is arranged in the countersunk hole (64); a plurality of cavities (84) are arranged at the lower part of the locking pin (82); steel balls (85) are arranged in the cavities (84); and the steel balls (85) cooperate with the locking block (81).

8. The front and back surface processing tool for a slewing bearing gear ring according to claim 7, characterized in that: A pin shaft sleeve (86) is arranged in the through hole (65), and the pin shaft sleeve (86) is sleeved on the locking pin (82).

9. The front and back surface processing tooling of a slewing bearing gear ring according to claim 1, characterized in that: The pressure plate (7) is connected to the bridge plate (5) via bolts.

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