Positioning device for precision metal structural part machining

Abstract

The utility model belongs to the technical field of metal structural part machining, and particularly relates to a positioning device for precision metal structural part machining, which comprises a positioning table for precision metal structural part machining, a driving seat and a middle plate, the inner side of the middle plate is fixedly connected with a plane clamping plate, and the outer side of the middle plate is detachably and fixedly connected with an arc-shaped clamping plate. A sliding groove is formed in the front side of the driving base. The clamping device is reasonable in structural design, switching between the plane clamping plate and the arc-shaped clamping plate is facilitated through the turnover switching mechanism, a plane precision metal structural part can be centered, clamped and positioned conveniently, an arc-shaped precision metal structural part can be clamped, centered and positioned conveniently, practicability of the clamping device is improved, and the clamping device is worthy of popularization and application. And the arc-shaped clamping plates can be disassembled, assembled and replaced conveniently, so that the arc-shaped clamping plates with different radians can be replaced conveniently, precise metal structural parts with different arcs can be clamped and positioned in the middle conveniently, and the universality of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of metal structural component processing technology, and in particular to a positioning device for precision metal structural component processing. Background Technology

[0002] Metal structural components are metal blocks, metal rods, metal plates, and other objects of various specifications and shapes made of metal materials. Currently, when processing metal structural components, it is necessary to drill holes in the metal structural components. When drilling some precision metal structural components, positioning devices are used to ensure accuracy.

[0003] A search revealed that a positioning device for machining precision metal structural parts, with authorization announcement numbers CN220296455U and CN218947019U, has shortcomings in use. Its clamping plate is a planar structure, thus it can only clamp and center metal structural parts with flat surfaces, but it is inconvenient to effectively clamp and center metal structural parts with curved surfaces. This greatly reduces the practicality and versatility of the device, and diminishes its effectiveness. Therefore, we propose a positioning device for machining precision metal structural parts to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned shortcomings and to propose a positioning device for machining precision metal structural parts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A positioning device for machining precision metal structural parts includes a positioning table, a drive base, and an intermediate plate. A flat clamping plate is fixedly connected to the inner side of the intermediate plate, and a flat precision metal structural part is movably abutted between the two flat clamping plates. An arc-shaped clamping plate is detachably fixedly connected to the outer side of the intermediate plate. A sliding groove is provided on the front side of the drive base, and two movable plates are slidably sleeved in the sliding groove. A centering and positioning fixing mechanism is provided between the drive base and the two movable plates. The intermediate plate is rotatably positioned in front of the movable plates. A flipping and switching mechanism is provided between the intermediate plate and the movable plates. A lifting mechanism is provided between the drive base and the positioning table.

[0007] As a preferred embodiment of this utility model, a rubber pad is fixedly connected to the inner side of the flat clamping plate, and a rubber pad is fixedly connected to one side of the arc-shaped clamping plate.

[0008] As a preferred embodiment of this utility model, the centering and positioning fixing mechanism includes a drive shaft rotatably connected to the top of the drive seat and a double-ended lead screw rotatably connected to the inner walls of both sides of the slide groove. The bottom end of the drive shaft is fixedly connected to an active bevel gear, and a driven bevel gear is fixedly sleeved on the outer side of the double-ended lead screw. The active bevel gear and the driven bevel gear mesh with each other, and both moving plates are threaded onto the outer side of the double-ended lead screw.

[0009] In a preferred embodiment of this invention, the top end of the drive shaft extends above the drive seat and is fixedly connected to a handwheel.

[0010] As a preferred embodiment of this utility model, the lifting mechanism includes two sliding sleeves and two guide columns fixedly connected to the top of the positioning platform. The two sliding sleeves are respectively fixedly connected to both sides of the drive seat, and the two sliding sleeves are respectively slidably sleeved on the outside of the corresponding guide columns. A push rod is threadedly sleeved on one side of the sliding sleeve, and a threaded groove is opened on one side of the guide column. The push rod is threadedly connected in the threaded groove.

[0011] In a preferred embodiment of this invention, the movable plate has a cavity, and the top inner wall of the cavity has a groove. The flipping and switching mechanism includes a rotating shaft rotatably connected to the front and rear inner walls of the cavity, and a vertical lead screw rotatably connected to the top and bottom inner walls of the groove. The intermediate plate is fixedly connected to the front end of the rotating shaft, and an external gear is fixedly sleeved on the outer side of the rotating shaft. A lifting plate is threaded on the outer side of the vertical lead screw. Two connecting rods are fixedly connected to the bottom of the lifting plate, and the bottom ends of the two connecting rods are fixedly connected to the same arc-shaped internal gear ring, which meshes with the external gear.

[0012] In a preferred embodiment of this invention, a knob is fixedly connected to the top of the vertical lead screw, and the lifting plate and the two connecting rods are slidably sleeved in the groove.

[0013] As a preferred embodiment of this utility model, two slots are provided on the outer side of the intermediate plate, and magnets are fixedly connected in the slots. Two plugs are fixedly connected to one side of the arc-shaped clamp, and the two plugs are movably inserted into the corresponding slots, and the two plugs are attracted to the corresponding magnets.

[0014] In this utility model, a positioning device for precision metal structural parts processing is described. When it is necessary to clamp and center a metal structural part with an arc-shaped surface, the top rod is loosened so that it disengages from the threaded groove, thus not fixing the sliding sleeve. The drive seat is moved upward so that the height of the upward movement does not hinder the intermediate plate from flipping and switching. The top rod is tightened to fix the drive seat. The vertical screw is rotated, which drives the lifting plate, two connecting rods and the arc-shaped internal gear ring to move upward without engaging with the external gear, thus not fixing the rotating shaft and the intermediate plate. The intermediate plate and the rotating shaft are rotated 180 degrees so that the arc-shaped clamping plate faces inward and the flat clamping plate is located on the outside, thus achieving the switching effect. After adjustment, the vertical screw is rotated in the opposite direction so that the lifting plate and the arc-shaped internal gear ring move downward and firmly engage with the outside of the external gear, thus locking the intermediate plate. Finally, the drive seat and the sliding sleeve are moved downward and adjusted to reset, and the top rod is screwed into the threaded groove for fixation. At this time, the intermediate plate, the arc-shaped clamping plate and the flat clamping plate abut against the top of the positioning table.

[0015] In this utility model, a positioning device for processing precision metal structural parts is described. The precision metal structural parts are placed on the top of the positioning table. A rotating drive shaft and an active bevel gear are used. The active bevel gear drives the driven bevel gear and a double-ended lead screw to rotate. The double-ended lead screw drives two moving plates, a middle plate, and an arc-shaped clamping plate to move closer to each other. This allows for effective clamping, centering, and fixing of precision metal structural parts with arc-shaped surfaces, improving the versatility of the device. When it is necessary to clamp and center-position precision metal structural parts with flat surfaces, the flat clamping plate is adjusted to the inside, while the arc-shaped clamping plate is flipped and adjusted to the outside. The flat clamping plate can then center and clamp the precision metal structural parts with flat surfaces. Furthermore, the slots, magnets, and inserts facilitate the disassembly and replacement of the arc-shaped clamping plate, allowing for the replacement of arc-shaped clamping plates with different curvatures. This enables the clamping and centering of precision metal structural parts with different arc shapes, further improving the versatility of the device and greatly enhancing its effectiveness.

[0016] This utility model has a reasonable structural design. Through a flipping and switching mechanism, it facilitates the switching between flat clamping plates and curved clamping plates. This not only makes it convenient for centering and positioning precision metal structural parts on flat surfaces, but also for centering and positioning precision metal structural parts on curved surfaces, thus improving the practicality of the device. It also facilitates the disassembly and replacement of curved clamping plates, allowing for the use of curved clamping plates with different curvatures to center and position precision metal structural parts with different curvatures, further improving the versatility of the device. Attached Figure Description

[0017] Figure 1 A first-view perspective perspective view of a positioning device for machining precision metal structural parts according to this utility model;

[0018] Figure 2This is a second-view perspective view of a positioning device for machining precision metal structural parts according to the present invention.

[0019] Figure 3 This is a front sectional view of a positioning device for machining precision metal structural parts according to the present invention;

[0020] Figure 4 for Figure 2 A schematic diagram of the structure of part A;

[0021] Figure 5 This is a left sectional view of a positioning device for machining precision metal structural parts according to the present invention.

[0022] Figure 6 for Figure 5 A structural diagram of section B;

[0023] Figure 7 This is a cross-sectional view of the arc-shaped clamping plate, the intermediate plate, and the flat clamping plate of a positioning device for machining precision metal structural parts proposed in this utility model.

[0024] In the diagram: 1. Positioning platform; 2. Drive seat; 3. Slide groove; 4. Sliding sleeve; 5. Guide column; 6. Top rod; 7. Handwheel; 8. Double-ended lead screw; 9. Driven bevel gear; 10. Moving plate; 11. Knob; 12. Intermediate plate; 13. Flat clamping plate; 14. Rubber pad one; 15. Arc-shaped clamping plate; 16. Rubber pad two; 17. Drive bevel gear; 18. Rotating shaft; 19. Vertical lead screw; 20. Groove; 21. Lifting plate; 22. Connecting rod; 23. Arc-shaped internal gear ring; 24. External gear; 25. Cavity; 26. Slot; 27. Magnet; 28. Insert block; 29. ​​Drive shaft. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-7A positioning device for machining precision metal structural parts includes a positioning table 1, a drive base 2, and an intermediate plate 12. A flat clamping plate 13 is fixedly connected to the inner side of the intermediate plate 12, and a flat precision metal structural part is movably abutted between the two flat clamping plates 13. An arc-shaped clamping plate 15 is detachably fixedly connected to the outer side of the intermediate plate 12. A sliding groove 3 is provided on the front side of the drive base 2, and two movable plates 10 are slidably sleeved in the sliding groove 3. A centering and positioning fixing mechanism is provided between the drive base 2 and the two movable plates 10. The intermediate plate 12 is rotatably positioned in front of the movable plates 10. A flipping and switching mechanism is provided between the intermediate plate 12 and the movable plates 10. A lifting mechanism is provided between the drive base 2 and the positioning table 1.

[0027] As a further aspect of this utility model, a rubber pad 14 is fixedly connected to the inner side of the flat clamping plate 13, and a rubber pad 16 is fixedly connected to one side of the arc-shaped clamping plate 15.

[0028] As a further improvement of this utility model, in order to facilitate the clamping, centering, positioning and fixing of precision metal structural parts, the centering, positioning and fixing mechanism includes a drive shaft 29 rotatably connected to the top of the drive seat 2 and a double-ended lead screw 8 rotatably connected to the inner walls on both sides of the slide groove 3. The bottom end of the drive shaft 29 is fixedly connected to an active bevel gear 17, and a driven bevel gear 9 is fixedly sleeved on the outer side of the double-ended lead screw 8. The active bevel gear 17 and the driven bevel gear 9 mesh with each other, and two moving plates 10 are threadedly sleeved on the outer side of the double-ended lead screw 8.

[0029] The above scheme is adopted: the rotating drive shaft 29 and the active bevel gear 17 drive the driven bevel gear 9 and the double-ended lead screw 8 to rotate. The double-ended lead screw 8 drives the two moving plates 10, the intermediate plate 12 and the arc-shaped clamping plate 15 to move closer to each other, thereby effectively clamping, centering and fixing the precision metal structural parts.

[0030] As a further feature of this invention, the top end of the drive shaft 29 extends above the drive seat 2 and is fixedly connected to a handwheel 7, which facilitates the rotation of the drive shaft 29.

[0031] As a further improvement of this utility model, in order not to hinder the flipping and switching between the arc-shaped clamping plate 15 and the flat clamping plate 13, the lifting mechanism includes two sliding sleeves 4 and two guide columns 5 fixedly connected to the top of the positioning platform 1. The two sliding sleeves 4 are respectively fixedly connected to both sides of the drive seat 2. The two sliding sleeves 4 are respectively slidably sleeved on the outside of the corresponding guide columns 5. A push rod 6 is threadedly sleeved on one side of the sliding sleeve 4. A threaded groove is opened on one side of the guide column 5, and the push rod 6 is threadedly connected in the threaded groove.

[0032] Using the above method: Loosen the push rod 6 so that it disengages from the threaded groove, and thus the sliding sleeve 4 is not fixed. Move the sliding sleeve 4 and the drive seat 2 upward so that the height of the upward movement does not hinder the flipping and switching of the intermediate plate 12, the flat clamping plate 13 and the arc-shaped clamping plate 15. Then tighten the push rod 6 so that one end of the push rod 6 firmly abuts against one side of the guide post 5, thereby fixing the drive seat 2. After the arc-shaped clamping plate 15 and the flat clamping plate 13 have finished flipping and switching, move the drive seat 2 and the sliding sleeve 4 downward to reset and screw the push rod 6 into the threaded groove for fixing. At this time, the intermediate plate 12 and the arc-shaped clamping plate 15 abut against the top of the positioning table 1.

[0033] As a further feature of this invention, the movable plate 10 has a cavity 25, and the top inner wall of the cavity 25 has a groove 20. The flipping and switching mechanism includes a rotating shaft 18 rotatably connected to the front and rear inner walls of the cavity 25, and a vertical lead screw 19 rotatably connected to the top and bottom inner walls of the groove 20. The intermediate plate 12 is fixedly connected to the front end of the rotating shaft 18. An external gear 24 is fixedly sleeved on the outer side of the rotating shaft 18. A lifting plate 21 is threaded on the outer side of the vertical lead screw 19. Two connecting rods 22 are fixedly connected to the bottom of the lifting plate 21. The bottom ends of the two connecting rods 22 are fixedly connected to the same arc-shaped internal gear ring 23, which meshes with the external gear 24.

[0034] Using the above scheme: Rotating the knob 11 and the vertical lead screw 19 causes the lifting plate 21, the two connecting rods 22, and the arc-shaped internal gear ring 23 to move upward without engaging with the external gear 24, thus not fixing the rotating shaft 18 and the intermediate plate 12. At this time, the intermediate plate 12 and the rotating shaft 18 can be rotated 180 degrees, so that the arc-shaped clamping plate 15 faces inward and the flat clamping plate 13 is located on the outside, thereby achieving the switching effect. After adjustment, rotating the knob 11 and the vertical lead screw 19 in the opposite direction causes the lifting plate 21, the two connecting rods 22, and the arc-shaped internal gear ring 23 to move downward and firmly engage with the outside of the external gear 24, thereby locking the rotating shaft 18 and the intermediate plate 12.

[0035] As a further feature of this invention, a knob 11 is fixedly connected to the top of the vertical lead screw 19, and the lifting plate 21 and the two connecting rods 22 are slidably sleeved in the groove 20, which facilitates the rotation of the vertical lead screw 19 and at the same time helps to guide the lifting plate 21 and the two connecting rods 22, making their movement more stable and smooth.

[0036] As a further feature of this invention, two slots 26 are provided on the outer side of the intermediate plate 12, and magnets 27 are fixedly connected in the slots 26. Two plugs 28 are fixedly connected to one side of the arc-shaped clamping plate 15. The two plugs 28 are movably inserted into the corresponding slots 26, and the two plugs 28 are attracted to the corresponding magnets 27.

[0037] In this invention, when clamping and centering a metal structural component with an arc-shaped surface, first loosen the top rod 6 to disengage it from the threaded groove, and then do not fix the sliding sleeve 4. Move the sliding sleeve 4 and the drive seat 2 upwards so that the upward movement does not hinder the flipping and switching of the intermediate plate 12, the flat clamping plate 13, and the arc-shaped clamping plate 15. Then tighten the top rod 6 so that one end of the top rod 6 firmly abuts against one side of the guide post 5, thereby fixing the drive seat 2. Then rotate the knob 11 and the vertical screw 19. The vertical screw 19 drives the lifting plate 21, the two connecting rods 22, and the arc-shaped... The upward movement of the internal gear ring 23 prevents it from engaging with the external gear 24, thus not fixing the rotating shaft 18 and the intermediate plate 12. At this point, the intermediate plate 12 and the rotating shaft 18 can be rotated 180 degrees, causing the arc-shaped clamping plate 15 to face inwards and the flat clamping plate 13 to face outwards, achieving a switching effect. After adjustment, rotating the knob 11 and the vertical lead screw 19 in the opposite direction causes the lifting plate 21, the two connecting rods 22, and the arc-shaped internal gear ring 23 to move downwards and firmly engage with the outer side of the external gear 24, thereby locking the rotating shaft 18 and the intermediate plate 12. Finally, following the above steps, the drive seat 2 can be... The sliding sleeve 4 is lowered and reset, and the top rod 6 is screwed into the threaded groove for fixation, so that the intermediate plate 12 and the arc-shaped clamping plate 15 abut against the top of the positioning table 1. Then, the precision metal structural component is placed on the top of the positioning table 1. By rotating the drive shaft 29 and the active bevel gear 17 through the handwheel 7, the active bevel gear 17 drives the driven bevel gear 9 and the double-ended lead screw 8 to rotate. The double-ended lead screw 8 drives the two moving plates 10, the intermediate plate 12 and the arc-shaped clamping plate 15 to move closer to each other, thereby effectively clamping, centering and fixing the precision metal structural component with an arc-shaped surface, improving the versatility and practicality of the device. When it is necessary to clamp and fix a precision metal structural component with a flat surface, the flat clamping plate 13 is adjusted to the inside, and the arc-shaped clamping plate 15 is flipped and adjusted to the outside. The flat clamping plate 13 can then be used to clamp and fix the precision metal structural component with a flat surface. The slot 26, magnet 27 and insert 28 facilitate the disassembly and replacement of the arc-shaped clamping plate 15, so that different arc-shaped clamping plates 15 can be replaced. This allows for the clamping and positioning of precision metal structural components with different arc shapes, further improving the versatility of the device and greatly enhancing its effectiveness.

Claims

1. A positioning device for machining precision metal structural parts, characterized in that, The system includes a positioning table (1), a drive base (2), and an intermediate plate (12) for machining precision metal structural parts. A flat clamping plate (13) is fixedly connected to the inner side of the intermediate plate (12), and a flat precision metal structural part is movably abutted between the two flat clamping plates (13). An arc-shaped clamping plate (15) is detachably fixedly connected to the outer side of the intermediate plate (12). A sliding groove (3) is provided on the front side of the drive base (2), and two movable plates (10) are slidably sleeved in the sliding groove (3). A centering and positioning fixing mechanism is provided between the drive base (2) and the two movable plates (10). The intermediate plate (12) is rotatably set on the front side of the movable plates (10). A flipping switching mechanism is provided between the intermediate plate (12) and the movable plates (10). A lifting mechanism is provided between the drive base (2) and the positioning table (1).

2. The positioning device for machining precision metal structural parts according to claim 1, characterized in that, A rubber pad (14) is fixedly connected to the inner side of the flat clamp (13), and a rubber pad (16) is fixedly connected to one side of the arc-shaped clamp (15).

3. The positioning device for machining precision metal structural parts according to claim 1, characterized in that, The centering and positioning fixing mechanism includes a drive shaft (29) rotatably connected to the top of the drive seat (2) and a double-ended lead screw (8) rotatably connected to the inner walls on both sides of the slide groove (3). The bottom end of the drive shaft (29) is fixedly connected to an active bevel gear (17), and a driven bevel gear (9) is fixedly sleeved on the outside of the double-ended lead screw (8). The active bevel gear (17) meshes with the driven bevel gear (9), and two moving plates (10) are threadedly sleeved on the outside of the double-ended lead screw (8).

4. The positioning device for machining precision metal structural parts according to claim 3, characterized in that, The top of the drive shaft (29) extends above the drive seat (2) and is fixedly connected to a handwheel (7).

5. A positioning device for machining precision metal structural parts according to claim 1, characterized in that, The lifting mechanism includes two sliding sleeves (4) and two guide columns (5) fixedly connected to the top of the positioning platform (1). The two sliding sleeves (4) are fixedly connected to both sides of the drive seat (2). The two sliding sleeves (4) are slidably sleeved on the outside of the corresponding guide columns (5). A top rod (6) is threaded on one side of the sliding sleeve (4). A threaded groove is opened on one side of the guide column (5). The top rod (6) is threadedly connected in the threaded groove.

6. A positioning device for machining precision metal structural parts according to claim 1, characterized in that, The movable plate (10) has a cavity (25) inside, and a groove (20) is provided on the top inner wall of the cavity (25). The flipping switching mechanism includes a rotating shaft (18) rotatably connected to the inner walls of the front and rear sides of the cavity (25), and a vertical screw (19) rotatably connected to the inner walls of the top and bottom sides of the groove (20). The intermediate plate (12) is fixedly connected to the front end of the rotating shaft (18). An external gear (24) is fixedly sleeved on the outer side of the rotating shaft (18). A lifting plate (21) is threaded on the outer side of the vertical screw (19). Two connecting rods (22) are fixedly connected to the bottom of the lifting plate (21). The bottom ends of the two connecting rods (22) are fixedly connected to the same arc-shaped internal gear ring (23). The arc-shaped internal gear ring (23) meshes with the external gear (24).

7. A positioning device for machining precision metal structural parts according to claim 6, characterized in that, A knob (11) is fixedly connected to the top of the vertical lead screw (19), and the lifting plate (21) and the two connecting rods (22) are slidably sleeved in the groove (20).

8. A positioning device for machining precision metal structural parts according to claim 1, characterized in that, Two slots (26) are provided on the outer side of the intermediate plate (12). A magnet (27) is fixedly connected in the slot (26). Two plugs (28) are fixedly connected to one side of the arc-shaped clamp (15). The two plugs (28) are movably inserted into the corresponding slots (26) respectively, and the two plugs (28) are attracted to the corresponding magnets (27) respectively.

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