Supporting and protecting device for inner hole grinding machine rotating clamp

Abstract

The utility model discloses a supporting and protecting device for an inner hole grinding machine rotary clamp, which comprises a machining table clamping base, a lower arc-shaped supporting plate and an upper arc-shaped supporting plate, the machining table clamping base is clamped and fixed in the middle of an inner hole grinding machine machining table, the lower arc-shaped supporting plate is arranged at the top of the machining table clamping base, and the upper arc-shaped supporting plate is arranged at the bottom of the machining table clamping base. One end of the upper arc-shaped supporting plate and one end of the lower arc-shaped supporting plate are rotationally connected through a rotating shaft, the other end of the upper arc-shaped supporting plate and the other end of the lower arc-shaped supporting plate can be connected and fixed through a closed connecting mechanism, and metal supporting short columns arranged towards the machining axis are arranged in the middle of the upper arc-shaped supporting plate and the middle of the lower arc-shaped supporting plate correspondingly. The problem that when an existing inner hole grinding machine is used for machining a metal piece with a large span, the middle of the metal piece is bent in the machining process is solved.

Description

Technical Field

[0001] The utility model relates to the field of grinding machine structures, in particular to a supporting and protecting device for a rotating fixture of an inner hole grinding machine. Background Art

[0002] The internal hole grinder is a commonly used grinding equipment for metal processing, which is mainly used for processing the inner hole surface. Generally speaking, its structure includes components such as a spindle, a clamping system, and a grinding head. It can process internal holes of various shapes and sizes, such as tapered holes, blind holes, through holes, etc. When using the internal hole grinder to grind metal parts, the metal parts are clamped with a clamping system, and then the grinding head is used for grinding. When using the above device for processing, we found that for some metal parts with a larger span, during the rotational grinding process, the middle part will bend and deform due to lack of support, which is very unfavorable to the quality of the processed components. There is no solution to the above problem in the prior art. Therefore, it is necessary to improve the existing internal hole grinder processing structure to improve this situation and improve the quality of the processed products. Utility Model Content

[0003] The utility model aims to provide a supporting and protecting device for a rotating fixture of an inner hole grinder, so as to solve the problem that when the existing inner hole grinder processes metal parts with a relatively large span, the middle part thereof will be bent during the processing.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A support and protection device for a rotating fixture of an internal hole grinder comprises a processing table clamping base, a lower arc support plate and an upper arc support plate. The processing table clamping base is clamped and fixed in the middle of the processing table of the internal hole grinder, and the lower arc support plate is arranged on the top of the processing table clamping base. One end of the upper arc support plate and the lower arc support plate are rotatably connected by a rotating shaft, and the other end of the upper arc support plate and the lower arc support plate can be connected and fixed by a closed connection mechanism. The middle parts of the upper arc support plate and the lower arc support plate are provided with metal support short columns arranged toward the processing axis.

[0006] A lower arc support plate and an upper arc support plate are arranged in the middle of the top surface of the inner hole grinder processing table. During processing, the upper arc support plate is flipped downward so that the other end thereof touches the other end of the lower arc support plate, and then the lower arc support plate and the upper arc support plate are fixed by a closed connection mechanism. After fixation, the surface of the metal part clamped on the clamping system can touch the inner ends of the metal support short columns on the inner sides of the lower arc support plate and the upper arc support plate. In this way, during grinding processing, the middle part of the metal part can be limited, and excessive deformation will not occur due to excessive span, and the quality of the processed product will be better.

[0007] As a further preference of the present utility model, the clamping base of the processing table and the lower arc-shaped support plate are integrally formed.

[0008] As a further preference of the present utility model, clamping limit plates are provided on both sides of the clamping base of the processing table, and a clamping limit plate pressing and positioning mechanism is provided on the side surface of the internal hole grinding machine.

[0009] The position of the clamping base of the processing table can be adjusted, facilitating the adjustment of its support position according to the length of the workpiece to be processed.

[0010] As a further preference of the present utility model, the clamping limit plate pressing and positioning mechanism includes a pressing plate. Both ends of the pressing plate are slidably connected to guide columns provided on the side surface of the internal hole grinding machine. Both ends of the pressing plate are also rotatably connected with pressing bolts. The screw rods of the pressing bolts pass through the pressing plate inward and are threadedly connected to the side wall of the internal hole grinding machine.

[0011] By screwing the pressing bolt inward, the pressing plate can be pushed against the side wall of the internal hole grinding machine. When the inner surface of the pressing plate is in tight contact with the outer surface of the clamping limit plate, the positioning of the clamping base of the processing table can be achieved.

[0012] As a further preference of the present utility model, balls are clamped to the bottom surface of the clamping base of the processing table.

[0013] It can slide more smoothly.

[0014] As a further preference of the present utility model, the metal support short column includes a column body and a conical support top arranged in sequence from outside to inside. The center position of the conical support top is a wear-resistant and high-temperature-resistant rubber contact surface.

[0015] The wear-resistant and high-temperature-resistant rubber contact surface can prevent metal parts from being scratched during the processing.

[0016] As a further preference of the present utility model, there are two metal support short columns in the middle of both the upper arc-shaped support plate and the lower arc-shaped support plate.

[0017] If the number of metal support short columns is too small, it cannot play a good supporting role. If there are too many, it will generate a large frictional force, affecting the rotation of the workpiece to be processed.

[0018] As a further preference of the present utility model, the closing connection mechanism includes a connecting plate and a closing locking bolt. The connecting plate is correspondingly arranged at one end of the lower arc-shaped support plate and the upper arc-shaped support plate. A bolt through hole is provided in the middle of the connecting plate. The closing locking bolt is threadedly connected to the threaded through hole.

[0019] Compared with the prior art, the present utility model can achieve at least one of the following beneficial effects:

[0020] 1. A lower arc-shaped support plate and an upper arc-shaped support plate are provided in the middle of the top surface of the machining table of the internal hole grinder. During machining, the upper arc-shaped support plate flips downward so that its other end touches the other end of the lower arc-shaped support plate, and then the lower arc-shaped support plate and the upper arc-shaped support plate are fixed through a closing connection mechanism. After being fixed, the surface of the metal part already clamped on the fixture system can touch the inner ends of the metal support short columns on the inner sides of the lower arc-shaped support plate and the upper arc-shaped support plate. In this way, during grinding machining, the middle part of the metal part can be limited, and excessive deformation will not occur due to excessive span, and the quality of the processed product is better.

[0021] 2. The position of the clamping base of the machining table can be adjusted to facilitate the adjustment of its support position according to the length of the workpiece to be machined.

[0022] 3. By screwing the pressing bolt inward, the pressing plate can be pushed against the side wall of the internal hole grinder. When the inner surface of the pressing plate is in tight contact with the outer surface of the clamping and limiting plate, the positioning of the clamping base of the machining table can be achieved.

[0023] 4. It can slide more smoothly.

[0024] 5. The wear-resistant and high-temperature-resistant rubber contact surface can prevent the metal part from being scratched during the machining process.

[0025] 6. If the number of metal support short columns is too small, it cannot play a good supporting role. If there are too many, it will generate a large frictional force and affect the rotation of the workpiece to be machined. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present invention.

[0027] Figure 2 is an end view of the metal support short column of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention to be protected, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0030] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0031] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Specific Embodiment 1:

[0035] Figure 1 、 Figure 2 shows a support and protection device for a rotary fixture of an internal hole grinding machine, including a processing table clamping base 1, a lower arc-shaped support plate 2 and an upper arc-shaped support plate 3. The processing table clamping base 1 is clamped and fixed in the middle of the processing table of the internal hole grinding machine. The lower arc-shaped support plate 2 is arranged on the top of the processing table clamping base 1. One end of the upper arc-shaped support plate 3 and the lower arc-shaped support plate 2 is rotatably connected through a rotating shaft, and the other end of the upper arc-shaped support plate 3 and the lower arc-shaped support plate 2 can be connected and fixed through a closing connection mechanism 4. Metal support short columns 5 facing the processing axis are provided in the middle of the upper arc-shaped support plate 3 and the lower arc-shaped support plate 2.

[0036] A lower arc-shaped support plate and an upper arc-shaped support plate are arranged in the middle of the top surface of the machining table of the internal hole grinder. During machining, the upper arc-shaped support plate rotates downward so that the other end thereof contacts the other end of the lower arc-shaped support plate, and then the lower arc-shaped support plate and the upper arc-shaped support plate are fixed through a closing connection mechanism. After being fixed, the surface of the metal part already clamped on the fixture system can contact the inner ends of the metal support short columns on the inner sides of the lower arc-shaped support plate and the upper arc-shaped support plate. In this way, during grinding machining, the middle part of the metal part can be limited, and excessive deformation will not occur due to too large a span, and the quality of the processed product is better. Specific Embodiment 2:

[0038] In this embodiment, the machining table clamping base 1 is further described on the basis of Specific Embodiment 1, and the machining table clamping base 1 and the lower arc-shaped support plate 2 are integrally formed. Specific Embodiment 3:

[0040] In this embodiment, the machining table clamping base 1 is further described on the basis of Specific Embodiment 1. Clamping limit plates are arranged on both sides of the machining table clamping base 1, and a clamping limit plate pressing and positioning mechanism 6 is arranged on the side surface of the internal hole grinder.

[0041] The position of the machining table clamping base can be adjusted, which is convenient for adjusting the support position according to the length of the workpiece to be machined. Specific Embodiment 4:

[0043] In this embodiment, the clamping limit plate pressing and positioning mechanism 6 is further described on the basis of Specific Embodiment 3. The clamping limit plate pressing and positioning mechanism 6 includes a pressing plate 61. The two ends of the pressing plate 61 are slidably connected to guide columns 62 arranged on the side surface of the internal hole grinder. The two ends of the pressing plate 61 are also rotatably connected with pressing bolts 63. The screw rods of the pressing bolts 63 pass through the pressing plate 61 inward and are threadedly connected to the side wall of the internal hole grinder.

[0044] By screwing the pressing bolt inward, the pressing plate can be pushed towards the side wall of the internal hole grinder. When the inner surface of the pressing plate is in tight contact with the outer surface of the clamping limit plate, the positioning of the machining table clamping base can be achieved. Specific Embodiment 5:

[0046] In this embodiment, the machining table clamping base 1 is further described on the basis of Specific Embodiment 1. Ball bearings 11 are clamped to the bottom surface of the machining table clamping base 1.

[0047] It can slide more smoothly. Specific Embodiment 6:

[0049] This embodiment further describes the metal support short column 5 on the basis of the specific embodiment 1. The metal support short column 5 includes a column body and a conical support top arranged in sequence from the outside to the inside. The center position of the conical support top is a wear-resistant and high-temperature-resistant rubber contact surface 51.

[0050] The wear-resistant and high-temperature-resistant rubber contact surface can prevent the metal parts from being scratched during the processing. Specific embodiment 7:

[0052] This embodiment further describes the upper arc-shaped support plate 3 and the lower arc-shaped support plate 2 on the basis of the specific embodiment 1. There are two metal support short columns 5 in the middle of the upper arc-shaped support plate 3 and the lower arc-shaped support plate 2.

[0053] If the number of metal support short columns is too small, it cannot play a good supporting role. If it is too large, it will generate a large frictional force and affect the rotation of the workpiece to be processed. Specific embodiment 8:

[0055] This embodiment further describes the closed connection mechanism 4 on the basis of the specific embodiment 1. The closed connection mechanism 4 includes a connecting plate 41 and a closed locking bolt 42. The connecting plate 41 is correspondingly arranged at one end of the lower arc-shaped support plate 2 and the upper arc-shaped support plate 3. A bolt through hole is provided in the middle of the connecting plate 41. The closed locking bolt is threadedly connected to the threaded through hole.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A support and protection device for a rotating fixture of an internal hole grinder, characterized in that: The invention comprises a processing table clamping base (1), a lower arc-shaped support plate (2) and an upper arc-shaped support plate (3); the processing table clamping base (1) is clamped and fixed in the middle of the processing table of an internal hole grinder; the lower arc-shaped support plate (2) is arranged on the top of the processing table clamping base (1); one end of the upper arc-shaped support plate (3) and the lower arc-shaped support plate (2) are rotatably connected via a rotating shaft; the other end of the upper arc-shaped support plate (3) and the lower arc-shaped support plate (2) can be connected and fixed via a closed connection mechanism (4); the middle of the upper arc-shaped support plate (3) and the lower arc-shaped support plate (2) are both provided with a metal support short column (5) arranged towards the processing axis.

2. The supporting and protecting device for the rotating fixture of the inner hole grinder according to claim 1 is characterized in that: The processing table clamping base (1) and the lower arc-shaped support plate (2) are integrally formed.

3. The supporting and protecting device for the rotating fixture of the inner hole grinder according to claim 1 is characterized in that: The two sides of the processing table clamping base (1) are provided with clamping limit plates, and the side of the inner hole grinder is provided with a clamping limit plate pressing and positioning mechanism (6).

4. The supporting and protecting device for the rotating fixture of the inner hole grinder according to claim 3 is characterized in that: The clamping and positioning mechanism (6) of the clamping limit plate comprises a pressing plate (61), the two ends of which are slidably connected to guide pillars (62) arranged on the side of the inner hole grinder, and the two ends of the pressing plate (61) are also rotatably connected to clamping bolts (63), and the screw of the clamping bolt (63) passes inwardly through the pressing plate (61) and is threadedly connected to the side wall of the inner hole grinder.

5. The supporting and protecting device for the rotating fixture of the inner hole grinder according to claim 1, characterized in that: A ball bearing (11) is clamped on the bottom surface of the processing table clamping base (1).

6. The supporting and protecting device for the rotating fixture of the inner hole grinder according to claim 1, characterized in that: The metal support short column (5) comprises a column body and a conical support top which are arranged in sequence from the outside to the inside, and the center position of the conical support top is a wear-resistant and high-temperature resistant rubber contact surface (51).

7. The supporting and protecting device for the rotating fixture of the inner hole grinder according to claim 1, characterized in that: There are two metal support short columns (5) in the middle of the upper arc-shaped support plate (3) and the lower arc-shaped support plate (2).

8. The supporting and protecting device for the rotating fixture of the inner hole grinder according to claim 1, characterized in that: The closed connection mechanism (4) comprises a connection plate (41) and a closed locking bolt (42); the connection plate (41) is correspondingly arranged at one end of the lower arc-shaped support plate (2) and the upper arc-shaped support plate (3); a bolt through hole is provided in the middle of the connection plate (41); and the closed locking bolt is threadedly connected to the threaded through hole.

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