Quick-mounting clamp for fan-shaped annular structural member

Abstract

The utility model relates to a quick-mounting clamp for a fan-shaped annular structural member, which comprises a base body, a member clamping groove, a member storage device, a member ejecting device, a member feeding device, a rear positioning pin, a front rotary pushing device, a pressing device and a member pushing device, the upper part of the base body is provided with the member clamping groove, the member storage device is arranged outside the member clamping groove, and the member pushing device is arranged outside the member clamping groove. Workpieces which are placed in a stacked mode and are of a fan-shaped annular structure are arranged in the piece storage device, a piece outlet through opening is formed in the bottom of the piece storage device, the piece ejecting device is arranged above the piece storage device, and the piece feeding device is arranged on the outer side of the piece storage device and pushes the workpieces into the piece clamping groove from the piece outlet through opening. A workpiece is positioned through the workpiece clamping groove, the rear positioning pin and the front rotary pushing device and is pressed through the pressing device, and the workpiece pushing device is arranged in the rear positioning pin. Workpieces clamped by the clamp are not prone to deformation, the limiting performance is high, operation is easy and convenient, the clamp can be used for batch production and use of workpiece end face machining, the clamping efficiency is high, the part alignment time is shortened, and meanwhile the labor intensity of operators is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of aerospace engine processing fixture technology, and specifically relates to a quick-assembly fixture for a fan-shaped ring structure. Background Technology

[0002] The finger-sized housing retaining ring is one of the more important parts of an aero-engine. The cross-section of the housing retaining ring is a fan-shaped U-shaped semi-ring. It needs to be machined into a stepped shape at one end of the housing retaining ring. The dimensional accuracy requirements are high. The existing clamping method is inefficient in machining this part, and manual intervention is still required during clamping.

[0003] When machining the end of the casing fixing ring part of the aero-engine, the traditional chuck positioning and clamping method is prone to workpiece deformation. Moreover, when reciprocating the machining of parts, it is difficult to accurately position and clamp the workpiece on the machining equipment. Not only is the clamping offset large, but the parts are also prone to deformation and scrapping, resulting in low clamping efficiency. Utility Model Content

[0004] This invention provides a quick-assembly fixture for a fan-shaped ring structure to solve the technical problems mentioned above regarding workpiece clamping during end machining of the housing fixing ring part and improving clamping efficiency during reciprocating machining.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a quick-assembly clamp for a fan-shaped ring structure, characterized in that it includes:

[0006] The base has a stepped front and a slot for fasteners on its upper part.

[0007] A storage container is placed in the middle of the base, the storage container is parallel to the slot, the storage container contains stacked fan-shaped ring-shaped workpieces, and the bottom of the storage container has a dispensing port.

[0008] The top component is placed above the storage container, rotatably connected, and locked onto the storage container via a snap-fit ​​mechanism.

[0009] The loading device is placed outside the storage container, and the loading device pushes the workpiece in the storage container from the outlet to the clamping slot;

[0010] The rear positioning pin is located at the rear of the card slot;

[0011] A front rotary pusher is positioned in front of the card slot;

[0012] A clamping device is positioned above the slot of the clamping device;

[0013] The pusher is placed inside the rear positioning pin.

[0014] Preferably, the storage device further includes a storage tank frame, a flared opening, and a guide plate. The bottom of the storage tank frame is provided with the outlet opening, which is through the bottom of the storage tank frame. The guide plate is placed on one side of the outlet opening.

[0015] Preferably, the flare is located at the upper end of the storage tank frame, and the workpiece is guided into the storage tank frame through the flare. The size of the workpiece is smaller than the flare or the outlet.

[0016] Preferably, the top piece holder includes an upper frame, a hinge, a latch, a pusher bar, and a spring. The upper frame is rotatably connected to the top of the storage container via the hinge and locked by the latch. The pusher bar is slidably connected to the upper frame and the storage container with a clearance fit. The upper end of the pusher bar is provided with the spring, and the spring pushes the pusher bar to push the workpiece in the storage container downward.

[0017] Preferably, the loading device includes a square tongue and an electric rod. The square tongue is clearance-fitted with the outlet, and the electric rod pushes the workpiece from the outlet into the clamping slot through the square tongue.

[0018] Preferably, the rear positioning pin is cylindrical, the rear positioning pin is fixedly connected to the base, the rear positioning pin has a groove, and the front end of the pusher is placed in the groove.

[0019] Preferably, the pusher is a long, square ring made of cylindrical steel wire, and a quick push rod is provided behind the pusher. The quick push rod drives the pusher to push the workpiece in the clamping slot away from the base.

[0020] Preferably, the front rotary pusher includes a rotary pressure rod, a pressure push plate, a rotating seat, and a telescopic rod. The rotary pressure rod is rotatably connected to the base through the rotating seat. The pressure push plate is welded to one end of the rotary pressure rod. The end of the telescopic rod is slidably connected to the other side of the rotary pressure rod. The telescopic rod pushes the rotary pressure rod to rotate and presses the workpiece against the rear positioning pin through the pressure push plate.

[0021] Preferably, the clamping device includes a raised pressure plate, an electric threaded rod, a pad, and a tension spring. The upper end face of the pad is at the same height as the upper end face of the workpiece in the clamping groove. The tension spring is placed in the inner hole of the pad, and the upper end of the tension spring is connected to one end of the raised pressure plate. The electric threaded rod, through threaded transmission, causes the other end of the raised pressure plate to press the workpiece into the clamping groove.

[0022] The beneficial effects of this utility model are as follows: The square tongue of the loading device can eject the workpiece from the outlet of the storage container. The square tongue pushes the ejected workpiece along the guide plate into the clamping groove for secure clamping. Furthermore, the workpiece is firmly pressed against the rear positioning pin by the pressure plate of the front rotating pusher, ensuring rapid and high-precision positioning of the workpiece. The workpiece can be clamped by the convex pressure plate of the clamping device. The pressure plate of the front rotating pusher can separate from the front end face of the workpiece around the rotating seat, ensuring that the front end of the workpiece can be clamped. The end face can be smoothly machined. Furthermore, after the workpiece is machined, the raised pressure plate and square tongue can separate from the workpiece from the top and side. The pusher at the rear of the workpiece can eject it from the clamping slot, achieving rapid unloading of the workpiece from the base. The square tongue of the loading device can again push the workpiece in the storage container into the clamping slot. The processes of loading, positioning, clamping, and unloading are convenient and quick, resulting in extremely high clamping efficiency during batch processing. The positioning accuracy during clamping is good, and the workpiece is clamped by the clamping device, ensuring good stability and preventing deformation. This fixture is simple and convenient for clamping parts, with strong limiting capabilities. It can be used for batch production of workpiece end face machining, improving clamping efficiency during processing, reducing part alignment time, and decreasing the operator's workload. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure from the front view of this utility model;

[0024] Figure 2 This is the utility model Figure 1 A magnified structural diagram of point B;

[0025] Figure 3 This is the utility model Figure 1 A schematic diagram of the cross-sectional structure along the AA direction;

[0026] Figure 4 This is a schematic diagram of the main structure of the storage device of this utility model;

[0027] Figure 5 This is the utility model Figure 4 Right view of the storage device;

[0028] Figure 6 This is a schematic diagram of Embodiment 1 of the present utility model;

[0029] Figure 7 This is a schematic diagram of Embodiment 2 of the present invention;

[0030] Figure 8 This is a schematic diagram of Embodiment 3 of the present invention;

[0031] Figure 9This is a schematic diagram of Embodiment 4 of this utility model;

[0032] In the diagram: 1. Base, 11. Sloping steps, 2. Clip slot, 3. Storage device, 31. Outlet, 32. Storage rack, 33. Flange, 34. Guide plate, 35. Workpiece, 4. Ejector, 41. Mounting device, 42. Hinge, 43. Buckle, 44. Push bar, 45. Spring, 5. Mounting device, 51. Square tongue, 52. Electric rod, 6. Rear positioning pin, 61. Groove, 7. Front rotary pusher, 71. Rotary pressure rod, 72. Pressure push plate, 73. Rotating seat, 74. Telescopic rod, 8. Clamping device, 81. Raised bar pressure plate, 82. Electric threaded rod, 83. Washer sleeve, 84. Tension spring, 9. Pusher, 91. Quick push rod. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] The present invention will be further described below with reference to the accompanying drawings:

[0037] Reference Figures 1 to 7As shown, one aspect of this utility model provides a quick-assembly fixture for a fan-shaped ring structure, comprising: a base 1, a clamping slot 2, a storage device 3, a top device 4, a loading device 5, a rear positioning pin 6, a front rotating pusher 7, a clamping device 8, and a pusher 9.

[0038] The following text will describe in detail some of the structure and principles of the aforementioned components of this quick-release fixture.

[0039] As an example, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the base 1 can be bolted to the machine tool's worktable. The front of the base 1 is provided with an inclined stepped platform 11, and the upper part of the base 1 is provided with a clamping slot 2, which can be an L-shaped right-angled slot. A storage container 3 is placed outside the clamping slot 2, and the storage container 3 can be parallel to the clamping slot 2. A fan-shaped or U-shaped semi-annular workpiece 35 placed in the storage container 3 can be pushed into the clamping slot 2 by the loading device 5 for clamping. The rear end of the workpiece 35 in the slot 2 can be provided with a rear positioning pin 6. The rear positioning pin 6 is fixedly connected to the base 1 by bolting or welding. The rear end of the workpiece 35 is positioned against the rear positioning pin 6. The front end of the workpiece 35 can be pressed tightly against the rear positioning pin 6 by the front rotating pusher 7. The workpiece 35 can be pressed by the upper clamping device 8, which is pressed down to ensure that the workpiece 35 is accurately positioned and stably pressed. The workpiece 35 has good clamping stability, and the workpiece 35 is not easily deformed under the pressure. The front end of the workpiece 35 has good clamping stability, which facilitates subsequent processing operations.

[0040] Example 1

[0041] Reference Figures 1 to 6As shown, the workpieces 35 in the storage container 3 are stacked vertically in sequence, and multiple stacked workpieces 35 can be placed in the storage container 3 at one time. The storage container 3 may include a dispensing port 31, a storage tank frame 32, a flared opening 33, and a guide plate 34. The storage tank frame 32 may be a square frame with a strip-shaped cutout in the middle of each side, allowing operators to easily check the quantity of workpieces 35 stored within it. The workpieces 35 are clearance-fitted into the storage tank frame 32. The upper part of the storage tank frame 32 has a flared opening 33, which may be integrally formed with the storage tank frame 32. The size of the workpieces 35 is smaller than the flared opening 33 or the dispensing port 31. When placing the workpieces 35 sequentially into the storage tank frame 32, the conical opening of the flared opening 33 facilitates the placement of the workpieces 35 into the storage tank frame 32. The bottom of the storage tank frame 32 may be milled with the dispensing port 31, which is a through-hole-like opening. To ensure that the workpiece 35 can be removed from the bottom of the storage tank frame 32, the guide plate 34 is placed on one side of the outlet 31, which is bolted to the base 1. The removed workpiece 35 can be moved along the guide plate 34 into the clamping slot 2. The workpiece 35 in the storage tank 3 can be pushed from the outlet 31 into the clamping slot 2 by the loading device 5. The loading device 5 may include a square tongue 51 and an electric rod 52. The square tongue 51 may be a long, rectangular body made of polytetrafluoroethylene material, and the electric rod 52 may be an electric telescopic rod. The square tongue 51 can be placed in the outlet 31 with a clearance fit. The end face size of the square tongue 51 is smaller than that of the workpiece 35. The electric rod 52 pushes the square tongue 51 to push the workpiece 35 from the outlet 31 into the clamping slot 2.

[0042] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the front rotary pusher 7 may include a rotating pressure rod 71, a pressure plate 72, a rotating seat 73, and a telescopic rod 74. The rotating pressure rod 71 may be a bent rod in the shape of a checkmark. The bent part of the rotating pressure rod 71 can be rotatably connected to the base 1 through the rotating seat 73. One end of the rotating pressure rod 71 is welded to the pressure plate 72, and the other end of the rotating pressure rod 71 is slidably connected to the top end of the telescopic rod 74. The telescopic rod 74 may be an electric telescopic rod. After the telescopic rod 74 extends, it can push the rotating pressure rod 71 to rotate. The rotating pressure rod 71 can press the pressure plate 72 onto the workpiece 35 in the clamping groove 2 and press the workpiece 35 against the rear positioning pin 6.

[0043] The clamping device 8 may include a raised pressure plate 81, an electric threaded rod 82, a pad 83, and a tension spring 84. The upper end face of the pad 83 may be at the same height as the upper end face of the workpiece 35 in the clamping groove 2. The electric threaded rod 82 may be placed in the middle of the raised pressure plate 81 and connected to it by a threaded drive. The rotation of the electric threaded rod 82 may move the raised pressure plate 81 up and down. The lower end of the tension spring 84 may be fixedly connected to the bottom of the inner hole of the pad 83. The upper end of the tension spring 84 may be hooked to one end of the raised pressure plate 81. When the electric threaded rod 82 rotates, the tension spring 84 may pull to ensure that the raised pressure plate 81 moves smoothly up and down. The electric threaded rod 82, through the threaded drive, causes the raised pressure plate 81 to press the workpiece 35 into the clamping groove 2. The workpiece 35 in the slot 2 is limited and tightened on both sides by the square tongue 51 and the slot 2; the front and rear ends of the workpiece 35 are limited and tightened by the rear positioning pin 6 and the pressure push plate 72; the upper and lower ends of the workpiece 35 are limited and tightened by the convex pressure plate 81 and the slot 2, ensuring that the workpiece 35 has high-precision positioning, and the multi-faceted pressing and locking ensures that the workpiece 35 can be stably clamped without deforming it. The clamping restraint of the workpiece 35 is excellent.

[0044] Example 2

[0045] Reference Figure 7 As shown, based on Embodiment 1, when the front end of the workpiece 35 needs to be processed, the telescopic rod 74 retracts and simultaneously drives the rotating pressure rod 71 to rotate on the rotating seat 73. The pressure push plate 72 at the outer end of the rotating pressure rod 71 disengages from and moves away from the front end of the workpiece 35, ensuring that the processing machine tool can smoothly perform processing operations on the end face of the workpiece 35.

[0046] Example 3

[0047] Reference Figure 1 , Figure 2 , Figure 3 and Figure 8As shown, after the front end face of the workpiece 35 in the slot 2 is machined, the protruding pressure plate 81 is lifted upward and separated from the workpiece 35, and the square tongue 51 retracts and separates from the workpiece 35. At this time, the workpiece 35 is in an unrestrained state. The rear positioning pin 6 has a milled groove 61. The pusher 9 is a long, square ring made of cylindrical steel wire. The front end of the pusher 9 is placed in the groove 61 with a clearance fit. A quick push rod 91 is provided behind the pusher 9. The quick push rod 91 can be an electric push rod. All electric push rods in this article can also be pneumatic telescopic rods or hydraulic telescopic rods. The quick push rod 91 drives the pusher 9 to move forward, which can push the workpiece 35 in the slot 2 away. The workpiece 35 can fall into the collection groove below through the transition of the ramp step 11 of the base 1.

[0048] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, when the square tongue 51 retracts and is pulled out of the outlet 31, the workpiece 35 in the storage tank square frame 32 can fall naturally; the upper end of the storage container 3 can be provided with a top piece 4, which can include an upper frame 41, a hinge 42, a latch 43, a pusher bar 44 and a spring 45. One side of the upper frame 41 is rotatably connected to the top of the storage container 3 through the hinge 42 and the other side is locked by the latch 43 to ensure that the top piece 4 is placed on the upper end of the storage container 3; the pusher bar 44 can be slidably connected with the upper frame 41 and the storage container 3 with a clearance fit. The upper end of the push bar 44 is provided with the spring 45. The spring 45 pushes the push bar 44 to push the workpiece 35 in the storage container 3 downward, ensuring that the workpiece 35 in the storage tank frame 32 can fall smoothly when it falls naturally, avoiding the phenomenon of the workpiece 35 getting stuck when falling in the storage tank frame 32, and ensuring that the workpiece 35 at the bottom of the storage tank frame 32 can be prepared for the next piece of pre-processing.

[0049] Example 4

[0050] Reference Figure 9 As shown, when a workpiece 35 is placed into the storage container 3, the latch 43 at one end of the upper frame 41 opens, and the upper frame 41 rotates via the hinge 42, exposing the flared opening 33 at the upper end of the storage compartment frame 32, facilitating the sequential placement of workpieces 35. Multiple workpieces 35 can be placed in the storage compartment frame 32 at a time, ensuring that multiple workpieces 35 can be repeatedly processed by starting the machine tool once through an electrical connection with the airport controller.

[0051] This invention utilizes the square tongue 51 of the loading device 5 to eject the workpiece 35 from the outlet 31 within the storage container 3. The square tongue 51 pushes the ejected workpiece 35 along the guide plate 34 into the clamping groove 2 for secure contact. Furthermore, the workpiece 35 is firmly positioned against the rear positioning pin 6 by the pressure plate 72 of the front rotary pusher 7, ensuring rapid and high-precision positioning of the workpiece 35. The workpiece 35 can be pressed by the protruding pressure plate 81 of the clamping device 8. The pressure plate 72 of the front rotary pusher 7 can separate from the front end face of the workpiece 35 around the rotating seat 73, ensuring that the front end of the workpiece 35 can be properly secured. The surface can be smoothly processed; in addition, after the workpiece 35 is processed, the convex pressure plate 81 and the square tongue 51 can be separated from the workpiece 35 from the top and side, and the pusher 9 behind the workpiece 35 can push the workpiece 35 out of the clamping slot 2, realizing the quick unloading of the workpiece 35 from the base 1; the square tongue 51 of the loading device 5 can push the workpiece 35 in the storage device 3 back into the clamping slot 2. The process of loading, positioning, clamping and unloading is convenient and fast, and the clamping efficiency during batch processing is extremely high. The positioning accuracy is good during the clamping process. The workpiece 35 is clamped by the clamping device 8, which not only has good stability, but also makes the part less prone to deformation. This fixture is simple and convenient to clamp parts, with strong limiting ability. It can be used for batch production of workpiece 35 end face processing, which can improve the clamping efficiency during processing, reduce the part alignment time, and reduce the labor intensity of the operator.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this invention. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A quick-assembly clamp for a fan-shaped ring structure, characterized in that, include: The base has a stepped front and a slot for fasteners on its upper part. A storage container is placed in the middle of the base, the storage container is parallel to the slot, the storage container contains stacked fan-shaped ring-shaped workpieces, and the bottom of the storage container has a dispensing port. The top component is placed above the storage container, rotatably connected, and locked onto the storage container via a snap-fit ​​mechanism. The loading device is placed outside the storage container, and the loading device pushes the workpiece in the storage container from the outlet to the clamping slot; The rear positioning pin is located at the rear of the card slot; A front rotary pusher is positioned in front of the card slot; A clamping device is positioned above the slot of the clamping device; The pusher is placed inside the rear positioning pin.

2. The quick-assembly fixture for a fan-shaped ring structure according to claim 1, characterized in that: The storage device also includes a storage tank frame, a flared opening, and a guide plate. The bottom of the storage tank frame is provided with the outlet, which is through the bottom of the storage tank frame. The guide plate is placed on one side of the outlet.

3. The quick-assembly fixture for a fan-shaped annular structural component according to claim 2, characterized in that: The flared opening is located at the upper end of the storage tank frame. The workpiece is guided into the storage tank frame through the flared opening. The size of the workpiece is smaller than the flared opening or the outlet.

4. The quick-assembly fixture for a fan-shaped annular structural component according to claim 1, characterized in that: The top piece device includes an upper frame, a hinge, a latch, a pusher bar, and a spring. The upper frame is rotatably connected to the top of the storage container via the hinge and locked by the latch. The pusher bar is slidably connected to the upper frame and the storage container with a clearance fit. The upper end of the pusher bar is provided with the spring, which pushes the pusher bar to push the workpiece in the storage container downward.

5. The quick-assembly fixture for a fan-shaped annular structural component according to claim 1, characterized in that: The loading device includes a square tongue and an electric rod. The square tongue is clearance-fitted with the outlet. The electric rod pushes the workpiece from the outlet into the clamping slot through the square tongue.

6. The quick-assembly fixture for a fan-shaped annular structural component according to claim 1, characterized in that: The rear positioning pin is cylindrical and is fixedly connected to the base. A groove is provided inside the rear positioning pin, and the front end of the pusher is placed in the groove.

7. The quick-assembly fixture for a fan-shaped annular structural component according to claim 6, characterized in that: The pusher is a long, square ring made of cylindrical steel wire. A quick push rod is provided behind the pusher, which drives the pusher to push the workpiece in the clamping slot away from the base.

8. A quick-assembly fixture for a fan-shaped annular structural component according to claim 1, characterized in that: The front rotary pusher includes a rotating pressure rod, a pressing plate, a rotating seat, and a telescopic rod. The rotating pressure rod is rotatably connected to the base through the rotating seat. The pressing plate is welded to one end of the rotating pressure rod. The end of the telescopic rod is slidably connected to the other side of the rotating pressure rod. The telescopic rod pushes the rotating pressure rod to rotate and presses the workpiece against the rear positioning pin through the pressing plate.

9. A quick-assembly fixture for a fan-shaped annular structural component according to claim 1, characterized in that: The clamping device includes a raised pressure plate, an electric threaded rod, a pad, and a tension spring. The upper end face of the pad is at the same height as the upper end face of the workpiece in the clamping groove. The tension spring is placed in the inner hole of the pad, and the upper end of the tension spring is connected to one end of the raised pressure plate. The electric threaded rod, through threaded transmission, causes the other end of the raised pressure plate to press the workpiece into the clamping groove.

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