CN221313293U

CN221313293U - Clamp for milling and turning cylindrical thin-wall shell

Info

Publication number: CN221313293U
Application number: CN202322945128.2U
Authority: CN
Inventors: 孙龙; 陈健; 蔡晶
Original assignee: Chengdu Fuxing Aerospace Technology Co ltd
Current assignee: Chengdu Fuxing Aerospace Technology Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-07-12
Anticipated expiration: 2033-10-31

Abstract

The application relates to a clamp for milling and turning a cylindrical thin-wall shell, which relates to the field of milling machine machining clamps and comprises a clamp body, wherein the clamp body comprises an outer frame and an inner frame, the outer frame and the inner frame are provided with a tightening device, the tightening device comprises a fixing bolt and a fixing nut, the fixing nut is respectively arranged on the outer frame and the inner frame, and the fixing bolt is in threaded connection with the fixing nut. The application has the effect of improving the application range of the clamp to workpieces to be machined with different sizes.

Description

Clamp for milling and turning cylindrical thin-wall shell

Technical Field

The application relates to the field of milling machine machining fixtures, in particular to a fixture for milling and turning a cylindrical thin-wall shell.

Background

The cylindrical thin-wall shell can be used in many places in the mechanical field, the cylindrical thin-wall shell is attractive in appearance, raw materials required during production can be saved to a certain extent, and meanwhile, when the external force is applied to the shell, the situation that the force is concentrated in one place does not exist on the shell, so that the structural strength of the shell can be guaranteed.

The cylindrical thin-wall shell is usually fixed on a milling lathe through a special milling lathe fixture, and then the outer surface and the inner surface of the cylindrical thin-wall shell are machined and molded through a machining tool on the milling lathe.

The existing clamp generally adopts a die sleeving clamp, and the die sleeving clamp is limited by the size, so that the cylindrical thin-wall shells with different sizes cannot be well self-adaptively adjusted to effectively clamp the cylindrical thin-wall shells with different sizes, and different die sleeving clamps are required to be replaced to clamp the different cylindrical thin-wall shells, so that the application range of the clamp to workpieces with different sizes is limited.

Disclosure of utility model

In order to improve the application range of the clamp to workpieces to be machined in different sizes, the application provides the clamp for milling and turning the cylindrical thin-wall shell.

The application provides a clamp for milling and turning a cylindrical thin-wall shell, which adopts the following technical scheme:

The utility model provides a anchor clamps for cylinder thin wall casing mills car processing, includes outer frame, inner frame, supports tight device and slider, slider sets up outer frame with on the inner frame, support tight device and set up on the slider, support tight device including fixing bolt and fixation nut, the fixation nut sets up respectively outer frame with on the inner frame, the fixing bolt with fixation nut threaded connection.

Through adopting above-mentioned technical scheme, utilize fixing bolt and fixation nut's setting, can stretch out fixation nut's length through fixing bolt and fixation nut's cooperation, and then treat the machined part to the cylinder thin wall casing of equidimension centre gripping, can improve anchor clamps to the application scope of equidimension to the machined part.

In a specific embodiment, the outer frame and the inner frame are each provided with a plurality of transverse steel frames and telescopic rods, and the outer frame and the inner frame are respectively formed between the plurality of transverse steel frames with different sizes by the telescopic rods.

Through adopting above-mentioned technical scheme, utilize the setting of horizontal steelframe and telescopic link, can adjust the interval between the adjacent horizontal steelframe through adjusting the length of telescopic link, and then adjust the size of outer frame and inner frame, the cylinder thin wall casing of matching different co-altitude waits that the machined part is favorable to improving anchor clamps to the application scope of waiting the machined part of co-altitude.

In a specific implementation manner, the telescopic rod comprises a first rod body, a second rod body and a positioning bolt, wherein one end of the first rod body is connected with the upper end of the transverse steel frame, a sliding groove is arranged in the first rod body, the sliding groove extends to the position, away from the upper end, of the first rod body, the end, away from the upper end, of the transverse steel frame is arranged in the sliding groove and can move relative to the first rod body, the position, away from the upper end, of the first rod body is provided with a threaded hole, and the positioning bolt is in threaded connection with the threaded hole and can abut against the second rod body, so that the second rod body is fixed to extend out of the length of the first rod body.

Through adopting above-mentioned technical scheme, utilize the setting of first body of rod, second body of rod and positioning bolt, can slide relative first body of rod through the second body of rod, adjust the length that the second body of rod stretches out first body of rod, the rethread positioning bolt fixes the position of the second body of rod, can adjust the interval between the adjacent horizontal steelframe.

In a specific embodiment, a plurality of abutting devices are arranged, and the abutting devices are symmetrically arranged in the circumferential direction of the transverse steel frame at equal intervals.

Through adopting above-mentioned technical scheme, utilize to support tight device equidistant setting in the circumference of horizontal steelframe, can exert clamping force to a plurality of positions of substitution machined part circumference, can avoid adding holding force asymmetry, lead to waiting that the machined part takes place the local shape that changes in the middle of the course of working, be favorable to improving simultaneously and add the stability of holding.

In a specific embodiment, the abutting devices on adjacent transverse steel frames are arranged at the same position.

By adopting the technical scheme, the abutting devices on the adjacent transverse steel frames are arranged at the same positions, so that the problem that the local deformation of the workpiece to be processed is caused by the fact that the holding force applied to the workpiece to be processed by the adjacent transverse steel bars is asymmetric can be avoided.

In a specific embodiment, the fixing bolt is provided with a protective sleeve adjacent to one end of the workpiece to be processed.

Through adopting above-mentioned technical scheme, utilize the protective sheath that sets up in fixing bolt one end, when can guarantee that fixing bolt treats the machined part and exert the clamp force, improve fixing bolt and treat the frictional force between the machined part, improve the stability of centre gripping, can avoid treating the machined part and cause the damage simultaneously.

In a specific implementation manner, an outer frame fixing seat is arranged on the side surface, away from the workpiece to be machined, of one end portion of the outer frame, a plurality of outer frame fixing seats are arranged, and a plurality of outer frame fixing seats are arranged in the circumferential direction of the outer frame.

Through adopting above-mentioned technical scheme, utilize the outer frame fixing base that sets up on the side of waiting the machined part is kept away from to outer frame one end tip, can improve the stability of outer frame installation on the lathe through outer frame fixing base and milling lathe's detachable link.

In a specific embodiment, the side of the end part of the inner frame, which is far away from the workpiece to be machined, is provided with a plurality of inner frame fixing seats, and a plurality of inner frame fixing seats are arranged on the circumferential direction of the inner frame.

Through adopting above-mentioned technical scheme, utilize the setting of inner frame one end tip to keep away from the inner frame fixing base on the side of waiting the machined part, can improve the stability of inner frame installation on the lathe through the detachable link of inner frame fixing base and milling lathe.

In summary, the present application includes at least one of the following beneficial technical effects:

1. Through the arrangement of the fixing bolts and the fixing nuts, the length of the fixing bolts extending out of the fixing nuts can be adjusted through the cooperation of the fixing bolts and the fixing nuts, so that cylindrical thin-wall shells with different sizes are clamped to be processed, and the application range of the clamp for the workpieces with different sizes can be improved;

2. Through the protective sheath, when can guarantee that fixing bolt treats the machined part and exert the clamp force, improve the frictional force between fixing bolt and the machined part of treating, improve the stability of centre gripping, can reduce simultaneously and treat the possibility that the machined part local deformation was caused to the centre gripping in-process.

3. Through the setting of horizontal steelframe and telescopic link, can adjust the interval between the adjacent horizontal steelframe through adjusting the length of telescopic link, and then adjust the size of outer frame and inside casing, the work piece is waited to the cylinder thin wall casing of matching not co-altitude, is favorable to improving the application scope of anchor clamps to the work piece is waited to the co-altitude.

Drawings

Fig. 1 is an overall schematic diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view of an outer frame according to an embodiment of the present application.

Fig. 3 is a partial enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural view of an inner frame according to an embodiment of the present application.

Reference numerals illustrate: 1. a clamp body; 11. an outer frame; 12. an inner frame; 2. a tightening device; 21. a fixing nut; 22. a fixing bolt; 3. a protective sleeve; 4. an outer frame fixing seat; 5. an inner frame fixing seat; 6. a transverse steel frame; 7. a telescopic rod; 71. a first rod body; 72. a second rod body; 73. and positioning bolts.

Detailed Description

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed" and "connected" should be interpreted broadly, and for example, they may be fixedly connected, detachably connected, or integrally connected; either directly or indirectly via an intermediate medium, or in communication with each other or in interaction with each other. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless otherwise stated, the azimuth words such as "up and down" are used to indicate azimuth or positional relationship based on the azimuth or positional relationship of the jig for milling a cylindrical thin-walled housing of the present application when it is normally used. The description of the orientation or the positional relationship of the fixture for milling and turning the cylindrical thin-wall shell and parts thereof is consistent with the installation orientation in actual use.

In this specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, and thus features defining "first," "second," or the like, may explicitly or implicitly include one or more of such features.

The embodiment of the application discloses a clamp for milling and turning a cylindrical thin-wall shell. As shown in fig. 1 to 4, the clamp comprises a clamp body 1, a tightening device 2, a protective sleeve 3, an outer frame fixing seat 4 and an inner frame fixing seat 5. The fixture body 1 comprises an outer frame 11 and an inner frame 12, wherein the outer frame 11 and the inner frame 12 are formed by connecting a plurality of transverse steel frames 6 and a plurality of telescopic rods 7, and the transverse steel frames 6 can be formed by welding a plurality of square steel. The outer frame 11 and the inner frame 12 are preferably provided in a column structure, and the outer frame 11 and the inner frame 12 are each in a regular polygon structure in plan view, and the outer frame 11 and the inner frame 12 are identical in shape and different in size, and square steel constituting the outer frame 11 is long and square steel constituting the inner frame 12 is short.

The telescopic rod 7 comprises a first rod body 71, a second rod body 72 and a positioning bolt 73, wherein one end of the first rod body 71 is fixedly connected with the lower end face of the transverse steel frame 6, a sliding groove is arranged in the first rod body 71, the sliding groove extends from one end close to the transverse steel frame 6 connected with the sliding groove to the other end, the second rod body 72 is arranged in the first rod body 71 and can move relative to the first rod body 71, a threaded hole is formed in one end, far away from the transverse steel frame 6 connected with the first rod body 71, of the first rod body 71, the positioning bolt 73 penetrates through the threaded hole and is in threaded connection with the threaded hole, one end of the positioning bolt 73 can be abutted against the second rod body 72 through screwing of the positioning bolt 73, and the second rod body 72 is fixed, so that the second rod body 72 cannot move relative to the first rod body 71.

The abutting device 2 is symmetrically arranged on the transverse steel frames 6 forming the outer frame 11 and the inner frame 12 at equal intervals, the positions of the abutting devices 2 arranged on the adjacent transverse steel frames 6 are the same, the abutting device 2 comprises fixing bolts 22 and fixing nuts 21, the fixing nuts 21 are fixedly arranged on the transverse steel frames 6, the fixing bolts 22 penetrate through the fixing nuts 21 and are in threaded connection with the fixing nuts 21, the fixing bolts 22 in the abutting devices 2 arranged on the outer frame 11 and the inner frame 12 are opposite to the screwing directions of the fixing nuts 21, the fixing bolts 22 on the outer frame 11 can be screwed into the outer frame 11, the fixing bolts 22 on the inner frame 12 can be screwed into the outer frame 12, one end of each fixing bolt 22 for fixing a workpiece to be machined is provided with a protective sleeve 3, the protective sleeve 3 can be made of rubber, nylon and other materials, friction force between the workpiece to be machined and the fixing bolts 22 can be improved, and meanwhile, the local shape of the workpiece to be machined can be prevented from being caused when the fixture is clamped to a certain extent.

The outer frame fixing seats 4 are arranged on the side surface, far away from the workpiece to be machined, of one end part of the outer frame 11, the outer frame fixing seats 4 are arranged in a plurality, the outer frame fixing seats 4 are arranged on the outer frame 11 in the circumferential direction at equal intervals, and the outer frame fixing seats 4 can be detachably connected on a milling lathe through bolts, so that the outer frame 11 is fixed. The side of the end part of one end of the inner frame 12, which is far away from the workpiece to be machined, is provided with the inner frame fixing seats 5, the inner frame fixing seats 5 are provided with a plurality of inner frame fixing seats 5, the inner frame fixing seats 5 are arranged at equal intervals in the circumferential direction of the inner frame 12, and the inner frame fixing seats 5 can be detachably linked on a milling lathe through bolts, so that the inner frame 12 is fixed.

The embodiment of the application provides a clamp for milling and turning a cylindrical thin-wall shell, which is implemented by the following principle: when the inner surface of a workpiece to be machined needs to be machined, the inner frame 12 is moved out, the outer frame 11 is fixed at a workpiece station through the outer frame fixing seat 4, the workpiece to be machined is surrounded by the outer frame 11, the length of the telescopic rod 7 is adjusted, the outer frame 11 reaches the height matched with the height of the workpiece to be machined, the workpiece to be machined is fixed by applying proper clamping force to the workpiece to be machined through the abutting device 2, and the inner surface of the workpiece to be machined is machined through a milling machine. When the outer surface of a workpiece to be machined needs to be machined, the outer frame 11 is removed, the inner frame 12 is fixed at a workpiece station through the inner frame fixing seat 5, the inner frame 12 is placed on the inner side of the workpiece to be machined, the inner frame 12 reaches the height matched with the height of the workpiece to be machined through adjusting the length of the telescopic rod 7, the workpiece to be machined is fixed through applying proper clamping force to the workpiece to be machined through the abutting device 2, and the outer surface of the workpiece to be machined is machined through milling.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A anchor clamps that is used for cylinder thin wall casing to mill car processing which characterized in that: including anchor clamps body (1), anchor clamps body (1) include outer frame (11) and inner frame (12), outer frame (11) with be provided with on inner frame (12) to tightly install, tightly install (2) including fixing bolt (22) and fixation nut (21), fixation nut (21) set up respectively outer frame (11) with on inner frame (12), fixing bolt (22) with fixation nut (21) threaded connection.

2. The fixture for milling of cylindrical thin-walled shells of claim 1, wherein: the outer frame (11) and the inner frame (12) are formed by a transverse steel frame (6) and telescopic rods (7), the transverse steel frame (6) is provided with a plurality of telescopic rods, and the outer frame (11) and the inner frame (12) are respectively formed by the telescopic rods (7) arranged among the transverse steel frames (6) with different sizes.

3. The fixture for milling of cylindrical thin-walled shells of claim 2, wherein: the telescopic rod (7) comprises a first rod body (71), a second rod body (72) and a positioning bolt (73), wherein one end of the first rod body (71) is connected with the upper end of the transverse steel frame (6), a sliding groove is formed in the first rod body (71), the sliding groove extends to the position, away from the upper end, of the first rod body (71), one end of the transverse steel frame (6), the second rod body (72) is arranged in the sliding groove and can move relative to the first rod body (71), the upper end of the first rod body (71) is away from the upper end of the transverse steel frame (6), the positioning bolt (73) is in threaded connection with the threaded hole, and can abut against the second rod body (72), so that the second rod body (72) is fixed to extend out of the length of the first rod body (71).

4. The fixture for milling of cylindrical thin-walled shells of claim 2, wherein: the supporting device (2) is provided with a plurality of supporting devices, and the supporting devices (2) are symmetrically arranged in the circumferential direction of the transverse steel frame (6) at equal intervals.

5. The fixture for milling a cylindrical thin-walled housing of claim 4 wherein: the abutting devices (2) on the adjacent transverse steel frames (6) are arranged at the same position.

6. The fixture for milling of cylindrical thin-walled shells of claim 1, wherein: one end of the fixing bolt (22) adjacent to the workpiece to be machined is provided with a protective sleeve (3).

7. The fixture for milling of cylindrical thin-walled shells of claim 1, wherein: the side of the end part of one end of the outer frame (11) far away from the workpiece to be machined is provided with an outer frame fixing seat (4), a plurality of outer frame fixing seats (4) are arranged, and a plurality of outer frame fixing seats (4) are arranged on the periphery of the outer frame (11).

8. The fixture for milling of cylindrical thin-walled shells of claim 1, wherein: the side of the end part of one end of the inner frame (12) far away from the workpiece to be machined is provided with an inner frame fixing seat (5), a plurality of inner frame fixing seats (5) are arranged, and a plurality of inner frame fixing seats (5) are arranged on the circumferential direction of the inner frame (12).