Multi-angle positioning lathe fixture

Abstract

The invention relates to the field of lathe fixtures, and discloses a multi-angle positioning lathe fixture which comprises a base, the inner wall of the base is rotatably connected with a transverse screw, the outer wall of the transverse screw is in threaded connection with a threaded sleeve, the outer wall of the threaded sleeve is fixedly connected with a base, and the inner wall of the top of the base is rotatably connected with a supporting plate. A clamping platform is hinged to the top of the supporting plate through a hinge shaft, opposite threaded rods are rotationally connected to the inner wall of the clamping platform, and clamping blocks are in threaded connection to the outer walls of the opposite threaded rods. According to the clamping device, by arranging the supporting plate, the clamping platform, the hinge shaft, the limiting spring, the limiting rod, the limiting block and the limiting groove, when the longitudinal machining angle is changed, a limiting handle is manually pulled to drive the limiting block to relieve limiting, and then the clamping platform is manually rotated to the needed machining angle; and then the limiting handle is loosened, the limiting block is rebounded into the corresponding limiting groove through the limiting spring to be clamped, and the longitudinal machining angle is rapidly changed.

Description

Technical Field

[0001] The present invention relates to the field of lathe fixtures, and particularly to a lathe fixture with multi-angle positioning. Background Art

[0002] In the field of modern machining, with the development of the manufacturing industry towards high precision, high efficiency, and intelligence, the lathe, as one of the core equipment in machining, the innovation and development of its fixture technology are crucial. The lathe fixture with multi-angle positioning, as a key component to enhance the machining ability of the lathe, plays an irreplaceable role in meeting the machining requirements of complex parts.

[0003] Existing lathe fixtures usually adopt a single-direction or simple combined positioning method. For example, general fixtures such as three-jaw chucks and four-jaw chucks can meet ordinary machining requirements to a certain extent.

[0004] However, these existing general fixtures can usually only perform radial positioning on parts. For parts that require precise positioning in multiple directions such as the axial direction and circumferential direction, the fixture cannot be positioned at multiple angles, and the clamping position needs to be adjusted multiple times, resulting in difficult-to-guarantee machining accuracy and consuming a large amount of time and labor. Therefore, a lathe fixture with multi-angle positioning is proposed to solve the above problems. Summary of the Invention

[0005] To make up for the above deficiencies, the present invention provides a lathe fixture with multi-angle positioning, aiming to improve the problem that the fixture cannot be positioned at multiple angles in the prior art.

[0006] To achieve the above object, the present invention adopts the following technical solution: A lathe fixture with multi-angle positioning, including a base, a transverse screw is rotatably connected to the inner wall of the base, a threaded sleeve is threadedly connected to the outer wall of the transverse screw, a base is fixedly connected to the outer wall of the threaded sleeve, a support plate is rotatably connected to the inner wall of the top of the base, a clamping platform is hinged to the top of the support plate through a hinge shaft, an opposing threaded rod is rotatably connected to the inner wall of the clamping platform, a clamping block is threadedly connected to the outer wall of the opposing threaded rod, a limiting rod is elastically connected to the inner wall of the top of the support plate through a limiting spring, a limiting block is fixedly connected to the top end of the limiting rod, a limiting groove is opened on the outer wall of the hinge shaft, and a limiting handle is fixedly connected to the middle end of the limiting rod.

[0007] As a further description of the above technical solution:

[0008] A fixing rod is elastically connected to the inner wall of the bottom of the support plate through a compression spring, a fixing block is fixedly connected to the bottom of the fixing rod, and a fixing groove is opened on the top of the base.

[0009] As a further description of the above technical solution:

[0010] The side wall of the base is slidably connected to the inner wall of the base, the bottom of the support plate is slidably connected to the top of the base, and the clamping block is slidably connected to the inner wall of the clamping platform.

[0011] As a further description of the above technical solution:

[0012] The hinge shaft is fixedly connected to the side wall of the clamping platform, and the hinge shaft is rotatably connected to the inner wall of the top end of the support plate.

[0013] As a further description of the above technical solution:

[0014] One end of the limiting spring is fixedly connected to the inner wall of the support plate, and the other end of the limiting spring is fixedly connected to the lower surface of the bottom end of the limiting rod.

[0015] As a further description of the above technical solution:

[0016] The limiting rod is slidably connected to the inner wall of the support plate, the limiting block is clamped to the inner wall of the limiting groove, the limiting block is slidably connected to the inner wall of the support plate, and the limiting handle is slidably connected to the inner wall of the support plate.

[0017] As a further description of the above technical solution:

[0018] One end of the compression spring is fixedly connected to the inner wall of the support plate, and the other end of the compression spring is fixedly connected to the lower surface of the top end of the fixed rod.

[0019] As a further description of the above technical solution:

[0020] The fixed rod is slidably connected to the inner wall of the support plate, the fixed block is clamped to the inner wall of the fixed groove, and the fixed block is slidably connected to the inner wall of the base.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the present invention, by providing a support plate, a clamping platform, a hinge shaft, a limiting spring, a limiting rod, a limiting block, and a limiting groove, when changing the longitudinal processing angle, the limiting is released by manually pulling the limiting handle to drive the limiting block, and then the clamping platform is manually rotated to the required processing angle, and then the limiting handle is released, and the limiting block is rebounded into the corresponding limiting groove by the limiting spring to be clamped, so as to realize the rapid change of the longitudinal processing angle.

[0023] 2. In the present invention, by providing a base, a support plate, a compression spring, a fixed rod, a fixed block, and a fixed groove, when changing the planar processing angle, the limiting is released by manually pressing the fixed rod to drive the fixed block, and then the support plate is rotated to the required planar angle, and then the fixed rod is released, and the fixed block is rebounded into the corresponding fixed groove by the compression spring to be clamped, so as to realize the rapid change of the planar processing angle. Brief Description of the Drawings

[0024] Figure 1 Schematic perspective view of the base and the clamping platform of a lathe fixture with multi-angle positioning proposed by the present invention;

[0025] Figure 2 Schematic perspective view of the base of a lathe fixture with multi-angle positioning proposed by the present invention;

[0026] Figure 3 Schematic perspective view of the clamping block of a lathe fixture with multi-angle positioning proposed by the present invention;

[0027] Figure 4 Schematic perspective view of the flipping of the clamping platform of a lathe fixture with multi-angle positioning proposed by the present invention;

[0028] Figure 5 Schematic perspective view of the disassembled limit rod of a lathe fixture with multi-angle positioning proposed by the present invention;

[0029] Figure 6 Of a lathe fixture with multi-angle positioning proposed by the present invention Figure 4 Enlarged schematic perspective view of part A therein;

[0030] Figure 7 Schematic perspective view of the sectional view of the support plate of a lathe fixture with multi-angle positioning proposed by the present invention.

[0031] Legend Explanation:

[0032] 1. Base; 2. Horizontal screw; 3. Threaded sleeve; 4. Base; 5. Support plate; 6. Clamping platform; 7. Hinge shaft; 8. Opposite threaded rod; 9. Clamping block; 10. Limit spring; 11. Limit rod; 12. Limit block; 13. Limit groove; 14. Limit handle; 15. Compression spring; 16. Fixed rod; 17. Fixed block; 18. Fixed groove. Detailed Description of the Invention

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Refer to Figures 1 - 3, an embodiment provided by the present invention: a lathe fixture with multi-angle positioning, including a base 1. The base 1 is the support surface of the overall fixture and can be installed on the lathe by means of bolts or welding. A transverse screw 2 is rotatably connected to the inner wall of the base 1. The transverse screw 2 is used to laterally move the threaded sleeve 3 to drive the base 4 to move laterally, achieving the effect of lateral adjustment. The outer wall of the transverse screw 2 is threadedly connected to the threaded sleeve 3. The threaded sleeve 3 is a connecting component of the transverse screw 2 and is used to drive the base 4 to move in the direction of rotation of the transverse screw 2. The outer wall of the threaded sleeve 3 is fixedly connected to the base 4. The base 4 is used to slide on the inner wall of the base 1 to keep the support plate 5 and the top clamping platform 6 moving stably laterally. The inner wall of the top of the base 4 is rotatably connected to the support plate 5. The support plate 5 is provided with a semi-planar diagonal brace to provide a space for the clamping platform 6 to flip by 90 degrees. The top of the support plate 5 is hinged to the clamping platform 6 through a hinge shaft 7. Four groups of chutes are opened on the top of the clamping platform 6 to keep the top of the clamping block 9 moving stably. An opposing threaded rod 8 is rotatably connected to the inner wall of the clamping platform 6. Corresponding threaded sleeves 3 need to be provided at the connection between the opposing threaded rod 8 and the clamping block 9 to keep the clamping block 9 moving stably and are used to drive two groups of clamping blocks 9 to move synchronously in opposite directions. The outer wall of the opposing threaded rod 8 is threadedly connected to the clamping block 9. The clamping block 9 is provided with four groups of connections on one side to increase the clamping area, and a gap is provided in the middle to cope with different machining methods of workpieces. The side wall of the base 4 is slidably connected to the inner wall of the base 1, the bottom of the support plate 5 is slidably connected to the top of the base 1, the clamping block 9 is slidably connected to the inner wall of the clamping platform 6, the hinge shaft 7 is fixedly connected to the side wall of the clamping platform 6, and the hinge shaft 7 is rotatably connected to the inner wall of the top end of the support plate 5.

[0035] Referring to Figures 4 - 6 , a limiting rod 11 is elastically connected to the inner wall of the top of the support plate 5 through a limiting spring 10. The limiting rod 11 is used to connect two groups of limiting blocks 12 to facilitate simultaneous release of the limit and increase the limit stability. The top end of the limiting rod 11 is fixedly connected to the limiting block 12. The limiting block 12 is used to engage with the limiting groove 13 to limit the rotation of the hinge shaft 7 and the clamping platform 6. A limiting groove 13 is opened on the outer wall of the hinge shaft 7. Several groups of the limiting grooves 13 are provided to engage with the limiting block 12 at multiple positions to change the longitudinal angle of the clamping platform 6. A limiting handle 14 is fixedly connected to the middle section of the limiting rod 11. The limiting handle 14 is used to extend the limiting rod 11 to the outside of the support plate 5 to facilitate manual external operation of the limit. One end of the limiting spring 10 is fixedly connected to the inner wall of the support plate 5, and the other end of the limiting spring 10 is fixedly connected to the lower surface of the bottom end of the limiting rod 11. Through the opposing extrusion force between the limiting spring 10 and the support plate 5, the limiting block 12 always remains engaged with the inner wall of the limiting groove 13 without being affected by external forces. The limiting rod 11 is slidably connected to the inner wall of the support plate 5, the limiting block 12 is engaged with the inner wall of the limiting groove 13, the limiting block 12 is slidably connected to the inner wall of the support plate 5, and the limiting handle 14 is slidably connected to the inner wall of the support plate 5.

[0036] Reference Figures 5 - 7 As shown in Figures 5 - 7 , a fixing rod 16 is elastically connected to the inner wall of the bottom of the support plate 5 through a compression spring 15. The fixing rod 16 is used to extend the fixing block 17 to the outside of the support plate 5, facilitating manual external operation for limiting. The bottom of the fixing rod 16 is fixedly connected to a fixing block 17, and the fixing block 17 is used to engage with the fixing groove 18 to limit the rotation of the support plate 5. A fixing groove 18 is formed at the top of the base 4. There are several groups of fixing grooves 18, which are used to engage the fixing block 17 at multiple positions to change the angle of the support plate 5. One end of the compression spring 15 is fixedly connected to the inner wall of the support plate 5, and the other end of the compression spring 15 is fixedly connected to the lower surface of the top end of the fixing rod 16. Through the opposite extrusion force between the compression spring 15 and the support plate 5, the fixing block 17 always remains engaged with the inner wall of the fixing groove 18 without being affected by external forces. The fixing rod 16 is slidably connected to the inner wall of the support plate 5, the fixing block 17 is engaged with the inner wall of the fixing groove 18, and the fixing block 17 is slidably connected to the inner wall of the base 4. A circular groove is formed below the fixing groove 18 at the top of the base 4, which is used for the support plate 5 to be rotated freely after the fixing block 17 is pressed down.

[0037] Working principle: When the lathe fixture with multi-angle positioning is working, the base 1 is fixed to the lathe by bolts or welding. Rotate the transverse screw rod 2, and the threaded sleeve 3 on its outer wall drives the base 4 to move horizontally inside the inner wall of the base 1, achieving horizontal adjustment and facilitating precise alignment of the machining position. The support plate 5 at the top of the base 4 can rotate around its connection part with the base 4. When it is necessary to adjust the longitudinal angle of the clamping platform 6, pull the limit handle 14 to drive the limit rod 11 to move downward against the elastic force of the limit spring 10, so that the limit block 12 disengages from the limit groove 13 on the outer wall of the hinge shaft 7, releasing the limit on the clamping platform 6. At this time, the clamping platform 6 can be longitudinally rotated to the required angle, and then release the limit handle 14. At the same time, the limit spring 10 resets the limit block 12 to snap into the corresponding limit groove 13 to fix the angle. If it is necessary to adjust the angle of the support plate 5 in the plane, press down the fixing block 17, so that the compression spring 15 is compressed, driving the fixing block 17 to disengage from the fixing groove 18 at the top of the base 4 to release the rotation limit of the support plate 5. Then rotate the support plate 5 to the appropriate plane angle, and then release the fixing rod 16. At the same time, the compression spring 15 resets the fixing block 17 to snap into the corresponding fixing groove 18 to complete the fixing. When clamping the workpiece, rotate the opposing threaded rod 8, and the clamping blocks 9 on its outer wall move towards each other synchronously in the sliding groove of the clamping platform 6 to realize clamping and fixing of the workpiece, so as to meet the machining requirements at different angles.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. 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 lathe fixture with multi-angle positioning, including a base (1), characterized in that: The inner wall of the base (1) is rotatably connected to a transverse screw rod (2). The outer wall of the transverse screw rod (2) is threadedly connected to a threaded sleeve (3). The outer wall of the threaded sleeve (3) is fixedly connected to a base (4). The inner wall of the top of the base (4) is rotatably connected to a support plate (5). The top of the support plate (5) is hinged to a clamping platform (6) through a hinge shaft (7). The inner wall of the clamping platform (6) is rotatably connected to an opposed threaded rod (8). The outer wall of the opposed threaded rod (8) is threadedly connected to a clamping block (9). The inner wall of the top of the support plate (5) is elastically connected to a limiting rod (11) through a limiting spring (10). The top end of the limiting rod (11) is fixedly connected to a limiting block (12). The outer wall of the hinge shaft (7) is provided with a limiting groove (13). The middle end of the limiting rod (11) is fixedly connected to a limiting handle (14).

2. The multi-angle positioning lathe fixture according to claim 1, wherein: The inner wall of the bottom of the support plate (5) is elastically connected to a fixing rod (16) through a compression spring (15). The bottom of the fixing rod (16) is fixedly connected to a fixing block (17). The top of the base (4) is provided with a fixing groove (18).

3. The multi-angle positioning lathe fixture according to claim 1, characterized in that: The side wall of the base (4) is slidably connected to the inner wall of the base (1). The bottom of the support plate (5) is slidably connected to the top of the base (1). The clamping block (9) is slidably connected to the inner wall of the clamping platform (6).

4. The multi-angle positioning lathe fixture according to claim 1, wherein: The hinge shaft (7) is fixedly connected to the side wall of the clamping platform (6). The hinge shaft (7) is rotatably connected to the inner wall of the top end of the support plate (5).

5. The lathe fixture with multi-angle positioning according to claim 1, characterized in that: One end of the limiting spring (10) is fixedly connected to the inner wall of the support plate (5). The other end of the limiting spring (10) is fixedly connected to the lower surface of the bottom end of the limiting rod (11).

6. The multi-angle positioning lathe fixture according to claim 1, wherein: The limiting rod (11) is slidably connected to the inner wall of the support plate (5). The limiting block (12) is clamped to the inner wall of the limiting groove (13). The limiting block (12) is slidably connected to the inner wall of the support plate (5). The limiting handle (14) is slidably connected to the inner wall of the support plate (5).

7. The lathe fixture with multi-angle positioning according to claim 2, characterized in that: One end of the compression spring (15) is fixedly connected to the inner wall of the support plate (5). The other end of the compression spring (15) is fixedly connected to the lower surface of the top end of the fixing rod (16).

8. The lathe fixture with multi-angle positioning according to claim 2, characterized in that: The fixing rod (16) is slidably connected to the inner wall of the support plate (5). The fixing block (17) is clamped to the inner wall of the fixing groove (18). The fixing block (17) is slidably connected to the inner wall of the base (4).

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