Fixing clamp for machine tool machining

Abstract

The utility model provides a stationary fixture for machine tool machining, which comprises a supporting assembly component, a supporting fixing component, an axial embedding component, an external assembly component, an internal assembly component and a radial constant pressure component, and has the advantages that a workpiece is fixed by arranging an upper gland and a lower base, so that the workpiece is fixed, and the working efficiency is improved; the lower base is clamped through a machine tool clamping jaw to machine a workpiece, the situation that the workpiece is damaged by clamping of the clamping jaw when the thin-wall workpiece is machined is avoided, the product quality is improved, the product percent of pass is increased, the axial positioning accuracy of the workpiece is guaranteed by arranging an axial clamping groove, the machining accuracy of the workpiece is guaranteed, and the machining efficiency of the workpiece is improved. The limiting end ring arranged in the upper gland is matched with the lower base, axial fixing of the workpiece is achieved, the constant-pressure through hole is formed, air circulation between the upper gland and the lower base is guaranteed, and heat dissipation can be conducted on the workpiece through cooling liquid or cold air in the machining process of the workpiece.

Description

Technical Field

[0001] The utility model relates to the field of machine tool processing, in particular to a fixing fixture for machine tool processing. Background Art

[0002] Patent document CN216421704U discloses a shaft turning fixture for aviation parts processing, which belongs to the technical field of turning parts processing. The shaft turning fixture for aviation parts processing includes a driving component and a clamping component, the driving component includes a fixed disk, an active threaded shaft, a driven threaded shaft, a moving block and a snap-fit ​​component, the clamping component includes a connecting piece and a clamping plate, the connecting piece is arranged on the top of the moving block, the clamping plate is installed on the top of the moving block through the connecting piece, the clamping plate is an L-shaped plate, and the clamping plate is provided with an arc groove, by providing a fixed disk, an active threaded shaft, a driven threaded shaft, a moving block and a snap-fit ​​component, the four moving blocks can be driven to move closer to or away from each other, by providing a connecting piece and a clamping plate, in cooperation with the four moving blocks, the workpiece can be clamped and fixed in four directions, which is more firm, and at the same time, the clamping plate is provided with an arc groove, the contact surface of the round shaft workpiece is increased, and the firmness is further improved.

[0003] However, the fixing fixture is too complicated and has too many parts, which increases the maintenance frequency. At the same time, the maintenance of the fixing fixture is too troublesome, which increases the maintenance cost.

[0004] Therefore, it is necessary to optimize the structure of the fixing fixture to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of the utility model is to provide a fixing fixture for machine tool processing to solve the problems raised in the above background technology.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A fixing fixture for machine tool processing, comprising:

[0008] A support assembly component, wherein the support assembly component has an installation space, and a surface of the support assembly component has a clamping space;

[0009] A support fixing component, which has an installation space, and can be matched with the support assembly component, and the support fixing component fixes the workpiece in the support assembly component;

[0010] An axial interlocking component is formed in the supporting assembly component, and has a receiving space, the shape of which matches the workpiece, and the workpiece is positioned by the axial interlocking component;

[0011] An external assembly component is formed on the surface of the supporting assembly component, and the supporting assembly component is connected to the supporting fixing component by the external assembly component;

[0012] A built-in assembly component, which is formed in the supporting and fixing component, and which is adapted to the external assembly component, and the built-in assembly component ensures that the supporting and fixing component fixes the workpiece in the supporting assembly component;

[0013] A radial constant pressure component is formed on a supporting and fixing component, and the radial constant pressure component can ensure that the supporting and fixing component fixes the workpiece.

[0014] The support assembly includes:

[0015] The lower base is cylindrical, and an installation space adapted to the workpiece is arranged inside the lower base, and the lower base provides space for fixing the workpiece.

[0016] The support and fixing assembly includes:

[0017] The upper gland is cylindrical, and a cavity matching the shape of the lower base is arranged inside the upper gland, and one end of the upper gland is sleeved on the surface of the lower base;

[0018] The limiting end ring is formed in the upper pressure cover. The limiting end ring is arranged along the circumferential direction and protrudes toward the inner side of the upper pressure cover to form a cylindrical end face. The limiting end ring contacts the workpiece to fix the workpiece in the lower base.

[0019] The axial fitting assembly includes:

[0020] An axial groove is formed in the lower base. The axial groove extends circumferentially at one end of the lower base and is recessed toward the inner side of the lower base to form a cavity that can accommodate a workpiece. The workpiece is positioned by the axial groove.

[0021] External assembly components include:

[0022] External threads are formed on the surface of the lower base, and the external threads extend circumferentially on the surface of the lower base. The external threads ensure that the lower base is connected to the upper pressure cover.

[0023] Built-in assembly components include:

[0024] The internal thread is formed in the upper pressure cover, and the internal thread extends circumferentially on the inner side of the upper pressure cover. The internal thread can be matched with the external thread. The internal thread and the external thread cooperate to connect the upper pressure cover with the lower base, thereby fixing the workpiece.

[0025] The radial constant pressure assembly includes:

[0026] A constant pressure through hole is provided, and a group of constant pressure through holes are arranged symmetrically in the upper pressure cover along the circumferential direction, and pass through the inner and outer sides of the upper pressure cover. The constant pressure through holes ensure the circulation of air between the upper pressure cover and the lower base when closed, and prevent the upper pressure cover and the lower base from being unable to close due to atmospheric pressure. At the same time, cooling air can enter the lower base through the constant pressure through holes to dissipate heat for the workpiece.

[0027] The advantages of the utility model are:

[0028] 1. The utility model fixes the workpiece by arranging an upper pressure cover and a lower base, and then clamps the lower base by the machine tool claws to process the workpiece, thereby avoiding the situation where the claws clamp the workpiece when processing thin-walled parts, increasing the quality of the product and improving the product qualification rate.

[0029] 2. The utility model ensures the accurate axial positioning of the workpiece and the precision of the workpiece during processing by providing the axial groove.

[0030] 3. The utility model realizes axial fixation of the workpiece by arranging a limit end ring in the upper pressure cover to cooperate with the lower base.

[0031] 4. The utility model ensures the air circulation between the upper pressure cover and the lower base by setting the constant pressure through hole, so that the workpiece can be cooled by coolant or cold air during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the lower base proposed by the utility model.

[0033] Figure 2 It is a structural schematic diagram of the upper pressure cover proposed by the utility model.

[0034] Numeral symbols: lower base 110, upper pressure cover 210, position limiting end ring 220, axial groove 310, external thread 410, internal thread 510, constant pressure through hole 610 DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0036] like Figure 1-2 As shown, the utility model proposes a fixing fixture for machine tool processing, including a supporting assembly component, a supporting fixing component, an axial interlocking component, an external assembly component, an internal assembly component and a radial constant pressure component. The supporting assembly component has an installation space, the surface of the supporting assembly component has a clamping space, the supporting fixing component has an installation space, the supporting fixing component can cooperate with the supporting assembly component, and the workpiece is fixed in the supporting assembly component by the supporting fixing component, the axial interlocking component is formed in the supporting assembly component, the axial interlocking component has a accommodating space, the shape of the accommodating space is adapted to the workpiece, the workpiece is positioned by the axial interlocking component, the external assembly component is formed on the surface of the supporting assembly component, the supporting assembly component is connected to the supporting fixing component by the external assembly component, the internal assembly component is formed in the supporting fixing component, the internal assembly component is adapted to the external assembly component, and the internal assembly component ensures that the supporting fixing component fixes the workpiece in the supporting assembly component, the radial constant pressure component is formed in the supporting fixing component, and the radial constant pressure component can ensure that the supporting fixing component fixes the workpiece.

[0037] In the present invention, the supporting assembly component includes a lower base 110, which is cylindrical. An installation space adapted to the workpiece is provided inside the lower base, and the lower base provides space for fixing the workpiece.

[0038] In the utility model, the supporting and fixing assembly includes an upper pressure cover 210 and a limiting end ring 220. The upper pressure cover is cylindrical, and a cavity matching the outer shape of the lower base is arranged inside the upper pressure cover. One end of the upper pressure cover is sleeved on the surface of the lower base, and the limiting end ring is formed in the upper pressure cover. The limiting end ring is arranged along the circumferential direction and protrudes toward the inner side of the upper pressure cover to form a cylindrical end face. The limiting end ring contacts the workpiece to fix the workpiece in the lower base.

[0039] In the utility model, the axial interlocking component includes an axial groove 310, which is formed in the lower base. The axial groove extends circumferentially at one end of the lower base and is recessed toward the inner side of the lower base to form a cavity that can accommodate a workpiece, and the workpiece is positioned by the axial groove.

[0040] In the present invention, the external assembly component includes an external thread 410, which is formed on the surface of the lower base and extends circumferentially on the surface of the lower base. The external thread ensures that the lower base is connected to the upper gland.

[0041] In the utility model, the built-in assembly component includes an internal thread 510, which is formed in the upper cover and extends circumferentially on the inner side of the upper cover. The internal thread can be adapted to the external thread. The internal thread and the external thread cooperate to connect the upper cover to the lower base, thereby fixing the workpiece.

[0042] In the utility model, the radial constant pressure component includes a constant pressure through hole 610, and a group of constant pressure through holes are provided. The constant pressure through holes are symmetrically arranged in the circumferential direction in the upper pressure cover, and pass through the inner and outer sides of the upper pressure cover. The constant pressure through holes ensure the circulation of air between the upper pressure cover and the lower base when closed, preventing the upper pressure cover and the lower base from being unable to close due to atmospheric pressure. At the same time, cooling air can enter the lower base through the constant pressure through holes to dissipate heat for the workpiece.

[0043] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" 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 a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A fixing fixture for machine tool processing, characterized in that: include: A support assembly component, wherein the support assembly component has an installation space, and a surface of the support assembly component has a clamping space; A support fixing component, which has an installation space, and can be matched with the support assembly component, and the support fixing component fixes the workpiece in the support assembly component; An axial interlocking component is formed in the supporting assembly component, and has a receiving space, the shape of which matches the workpiece, and the workpiece is positioned by the axial interlocking component; An external assembly component is formed on the surface of the supporting assembly component, and the supporting assembly component is connected to the supporting fixing component by the external assembly component; A built-in assembly component, which is formed in the supporting and fixing component, and which is adapted to the external assembly component, and the built-in assembly component ensures that the supporting and fixing component fixes the workpiece in the supporting assembly component; A radial constant pressure component is formed on a supporting and fixing component, and the radial constant pressure component can ensure that the supporting and fixing component fixes the workpiece.

2. A fixing fixture for machine tool processing according to claim 1, characterized in that: The support assembly includes: The lower base is cylindrical, and an installation space adapted to the workpiece is arranged inside the lower base, and the lower base provides space for fixing the workpiece.

3. A fixing fixture for machine tool processing according to claim 2, characterized in that: The support and fixing assembly includes: The upper gland is cylindrical, and a cavity matching the shape of the lower base is arranged inside the upper gland, and one end of the upper gland is sleeved on the surface of the lower base; The limiting end ring is formed in the upper pressure cover. The limiting end ring is arranged along the circumferential direction and protrudes toward the inner side of the upper pressure cover to form a cylindrical end face. The limiting end ring contacts the workpiece to fix the workpiece in the lower base.

4. A fixing fixture for machine tool processing according to claim 2, characterized in that: The axial fitting assembly includes: An axial groove is formed in the lower base. The axial groove extends circumferentially at one end of the lower base and is recessed toward the inner side of the lower base to form a cavity that can accommodate a workpiece. The workpiece is positioned by the axial groove.

5. A fixing fixture for machine tool processing according to claim 3, characterized in that: External assembly components include: External threads are formed on the surface of the lower base, and the external threads extend circumferentially on the surface of the lower base. The external threads ensure that the lower base is connected to the upper pressure cover.

6. A fixing fixture for machine tool processing according to claim 3, characterized in that: Built-in assembly components include: The internal thread is formed in the upper pressure cover, and the internal thread extends circumferentially on the inner side of the upper pressure cover. The internal thread can be matched with the external thread. The internal thread and the external thread cooperate to connect the upper pressure cover with the lower base, thereby fixing the workpiece.

7. A fixing fixture for machine tool processing according to claim 3, characterized in that: The radial constant pressure assembly includes: A constant pressure through hole is provided, and a group of constant pressure through holes are arranged symmetrically in the upper pressure cover along the circumferential direction, and pass through the inner and outer sides of the upper pressure cover. The constant pressure through holes ensure the circulation of air between the upper pressure cover and the lower base when closed, and prevent the upper pressure cover and the lower base from being unable to close due to atmospheric pressure. At the same time, cooling air can enter the lower base through the constant pressure through holes to dissipate heat for the workpiece.

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