Self-adaptive clamping jig for ultra-precision machining of workpieces in complex shapes

Abstract

The utility model discloses a self-adaptive clamping jig for ultra-precision machining of workpieces in complex shapes. The self-adaptive clamping jig comprises a fastening module, a shell, a protruding plate and a clamping module. The clamping module comprises a circular shaft, one end of the circular shaft penetrates through and is movably connected with one side of the shell, and the end portion of one end of the circular shaft is fixedly connected with the center of a first rotating disc. According to the special-shaped part fixing device, a special-shaped part needing to be fixed is placed on the upper side of the shell, through the clamping module, the set of round abutting rods are made to make contact with one side of the special-shaped part respectively, fixing of the special-shaped part is completed, through the fastening module, the set of round rods abut against the corresponding round abutting rods, and the two sets of round abutting rods abut against the special-shaped part tightly; according to the special-shaped part fixing device, manual handheld fixing of the special-shaped part is replaced, danger caused by manual fixing is prevented, meanwhile, fixing is firm, it is guaranteed that follow-up machining of the special-shaped part is conducted smoothly, and then the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of irregular part processing technology, and in particular to an adaptive jig for ultra-precision machining of workpieces with complex shapes. Background Technology

[0002] Parts are the basic components of a machine. A machine generally consists of one or more transmission parts (such as electric motors, internal combustion engines, and steam engines) that receive external energy; execution parts that realize the machine's production functions (such as cutting tools in machine tools); transmission parts that transmit the motion and power of the prime mover to the execution parts (such as gear and screw transmission mechanisms in machine tools); and detection and control systems that ensure the coordinated operation of all parts in the machine (such as CNC systems in machine tools). (That is, a machine consists of a prime mover, transmission parts, execution parts, and measurement and control parts.) Further decomposition of a machine yields various types of parts. When machining parts, they often need to be clamped. Parts come in many shapes, and many are irregular in shape.

[0003] In existing technologies, irregularly shaped parts are often held manually. However, holding irregularly shaped parts manually poses certain risks and is not very reliable, making it inconvenient to process irregularly shaped parts and resulting in slow work efficiency. Alternatively, conventional jigs can be used to hold and fix irregularly shaped parts. However, conventional jigs can only hold two sides of the part, and irregularly shaped parts have irregular shapes and uneven clamping surfaces. Conventional jigs are unstable, have poor clamping effect, and uncertain clamping points, thus reducing the machining effect.

[0004] Therefore, it is necessary to provide an adaptive fixture for ultra-precision machining of workpieces with complex shapes to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adaptive jig for ultra-precision machining of complex-shaped workpieces.

[0006] This utility model achieves its purpose through the following technical solution:

[0007] An adaptive clamping fixture for ultra-precision machining of workpieces with complex shapes, characterized in that it includes: a fastening module, a housing, a protrusion plate, and a clamping module;

[0008] The clamping module includes a round shaft, one end of which passes through and is movably connected to one side of the housing. One end of the round shaft is fixedly connected to the center of the first turntable, and the other end of the round shaft is fixedly connected to the center of a first bevel gear. The first bevel gear meshes with a second bevel gear. A bidirectional lead screw passes through and is fixedly connected to the center of the second bevel gear. The bidirectional lead screw has two sections of threads with opposite directions. The bidirectional lead screw is threadedly connected to symmetrical sliders. The two sliders are fixedly connected to corresponding slide rods. The two slide rods are respectively arranged in slide grooves. The slide grooves are arranged on the upper side of the housing. The upper sides of the two sliders are fixedly connected to corresponding push plates.

[0009] Each of the two push plates is provided with a corresponding set of evenly arranged through slots. A corresponding set of circular abutting rods passes through the corresponding set of through slots. A corresponding set of circular abutting rods is fitted with a corresponding spring. One end of the corresponding set of springs is fixedly connected to the corresponding push plate. The other end of the corresponding set of springs is fixedly connected to the corresponding circular baffle. The corresponding set of circular baffles is fixedly connected to the corresponding circular abutting rod.

[0010] As a further limitation of this technical solution, the fastening module is provided in two sets. The fastening module includes a set of sliding sleeves, each set of sliding sleeves is fixedly connected to the upper side of the push plate, and the sliding sleeves are connected to the corresponding through grooves. A set of round rods passes through the corresponding sliding sleeves, and the upper ends of the set of round rods are fixedly connected to the connecting plates.

[0011] As a further limitation of this technical solution, the connecting plate is fixedly connected to the second slider, the second slider is threadedly connected to the lead screw, and the lower end of the lead screw passes through and is movably connected to the push plate.

[0012] As a further limitation of this technical solution, the upper end of the lead screw is fixedly connected to the center of the second turntable.

[0013] As a further limitation of this technical solution, a set of protruding plates are fixedly connected to the outer wall edge of the shell.

[0014] Compared with related technologies, the adaptive clamping fixture for ultra-precision machining of complex-shaped workpieces provided by this utility model has the following beneficial effects:

[0015] (1) Place the irregular part that needs to be fixed on the upper side of the shell. Through the clamping module, make a set of circular abutment rods contact one side of the irregular part respectively to complete the fixing of the irregular part. Through the fastening module, make a set of round rods abut against the corresponding round abutment rods, so that the two sets of round abutment rods tightly abut against the irregular part and the irregular part is fixed.

[0016] (2) This device replaces manual hand-held fixing of irregular parts, preventing danger caused by manual fixing, and the fixing is also more reliable, ensuring the smooth subsequent machining of irregular parts, thereby improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 This is a three-dimensional schematic diagram of the present invention.

[0019] Figure 3 This is a three-dimensional schematic diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the connection structure of some parts of this utility model.

[0021] Figure 5 This is a schematic diagram of the connection structure of some parts of this utility model.

[0022] Figure 6 This is a schematic diagram of the connection structure of some parts of this utility model.

[0023] In the picture:

[0024] 1. Irregularly shaped parts;

[0025] 2. Fastening module; 21. Connecting plate; 22. Round rod; 23. Second turntable; 24. Sliding block II; 25. Lead screw; 26. Sliding sleeve;

[0026] 3. Shell;

[0027] 4. Convex plate;

[0028] 5. Clamping module; 51. Slide groove; 52. First turntable; 53. Round shaft; 54. Push plate; 55. Through groove; 56. Two-way lead screw; 57. Slider 1; 58. Bevel gear 2; 59. Bevel gear 1; 510. Circular abutment rod; 511. Spring; 512. Circular baffle; 513. Slide rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] An adaptive clamping fixture for ultra-precision machining of workpieces with complex shapes includes: a fastening module 2, a housing 3, a protruding plate 4, and a clamping module 5;

[0031] The clamping module 5 includes a round shaft 53, one end of which passes through and is movably connected to one side of the housing 3. One end of the round shaft 53 is fixedly connected to the center of the first turntable 52, and the other end of the round shaft 53 is fixedly connected to the center of a bevel gear 59. The bevel gear 59 meshes with a bevel gear 58. A bidirectional lead screw 56 passes through and is fixedly connected to the center of the bevel gear 58. The bidirectional lead screw 56 has two threads with opposite directions. The bidirectional lead screw 56 is threadedly connected to symmetrical sliders 57. The two sliders 57 are fixedly connected to corresponding slide rods 513. The two slide rods 513 are respectively arranged in slide grooves 51. The slide grooves 51 are arranged on the upper side of the housing 3. The upper sides of the two sliders 57 are fixedly connected to corresponding push plates 54.

[0032] Each of the two push plates 54 is provided with a corresponding set of evenly arranged through slots 55. A corresponding set of circular abutting rods 510 pass through the corresponding set of through slots 55. A corresponding set of circular abutting rods 510 is respectively fitted with a corresponding spring 511. One end of the corresponding set of springs 511 is fixedly connected to the corresponding push plate 54. The other end of the corresponding set of springs 511 is fixedly connected to the corresponding circular baffle 512. The corresponding set of circular baffles 512 is fixedly connected to the corresponding circular abutting rods 510.

[0033] The fastening module 2 is provided in two sets. The fastening module 2 includes a set of sliding sleeves 26. The set of sliding sleeves 26 is fixedly connected to the upper side of the push plate 54. The sliding sleeves 26 are connected to the corresponding through grooves 55. A set of round rods 22 passes through the corresponding sliding sleeves 26. The upper end of the set of round rods 22 is fixedly connected to the connecting plate 21.

[0034] The connecting plate 21 is fixedly connected to the second slider 24, the second slider 24 is threadedly connected to the lead screw 25, and the lower end of the lead screw 25 passes through and is movably connected to the push plate 54.

[0035] The upper end of the lead screw 25 is fixedly connected to the center of the second turntable 23.

[0036] A set of protruding plates 4 are fixedly connected to the outer wall edge of the housing 3.

[0037] Working principle: First, a set of bolts is used to fix the device to the operating table of the processing equipment through the convex plate 4. The irregular part 1 to be fixed is placed on the upper side of the housing 3, so that it is between the two sets of circular abutment rods 510. The first turntable 52 is rotated. The first turntable 52 drives the bevel gear 1 59 to rotate through the round shaft 53. The bevel gear 1 59 meshes with the bevel gear 2 58 to rotate. The bevel gear 2 58 drives the double-acting screw 56 to rotate. The double-acting screw 56 drives the slide rod 513 to move along the slide groove 51 towards each other through the two sliders 1 57. This causes the slide rod 513 to drive the corresponding push plate 54 to move. The push plate 54 drives the circular abutment rods 510 to move through the through groove 55, which stretches the spring 511. This causes the set of circular abutment rods 510 to contact one side of the irregular part 1 respectively. Figure 1 As shown, the irregular part 1 is fixed, and the first turntable 52 stops rotating at this time;

[0038] Then, the second turntable 23 is rotated, which drives the lead screw 25 to rotate. The lead screw 25 drives the second slider 24 to slide. The second slider 24 drives the round rod 22 to move downward along the sliding sleeve 26 through the connecting plate 21, so that a set of round rods 22 abut against the corresponding round abutment rod 510, thereby fixing the round abutment rod 510. At this time, the rotation of the second turntable 23 is stopped, and the two sets of round abutment rods 510 are tightly pressed against the irregular part 1, thereby fixing the irregular part 1. Then, the irregular part 1 is processed. This device replaces manual hand-held fixing of the irregular part 1, preventing the danger of manual fixing. At the same time, the fixing is more reliable, ensuring the smooth progress of subsequent machining of the irregular part 1, thereby improving work efficiency.

[0039] Beneficial effects: The irregularly shaped part 1 that needs to be fixed is placed on the upper side of the housing 3. Through the clamping module 5, a set of circular abutment rods 510 respectively contact one side of the irregularly shaped part 1 to complete the fixation of the irregularly shaped part 1. Through the fastening module 2, a set of round rods 22 abut against the corresponding round abutment rods 510, so that the two sets of round abutment rods 510 tightly abut against the irregularly shaped part 1, thereby fixing the irregularly shaped part 1. This device replaces manual hand-holding to fix the irregularly shaped part 1, preventing the danger of manual fixing. At the same time, the fixation is also more reliable, ensuring the smooth progress of subsequent machining of the irregularly shaped part 1, thereby improving work efficiency.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A self-adaptive fixture for ultra-precision machining of a workpiece with complex shape, characterized in that, Include: Fastening module (2), shell (3), tab (4), clamping module (5); Wherein, the clamping module (5) includes a round shaft (53), one end of the round shaft (53) passes through and movably connects one side of the shell (3), one end of the round shaft (53) is fixedly connected to the center of the first turntable (52), the other end of the round shaft (53) is fixedly connected to the center of the bevel gear one (59), the bevel gear one (59) engages the bevel gear two (58), the bidirectional screw rod (56) passes through and is fixedly connected to the center of the bevel gear two (58), the bidirectional screw rod (56) is respectively provided with two threads with opposite directions, the bidirectional screw rod (56) is respectively threadedly connected with the symmetric slide block one (57), the two slide block one (57) are respectively fixedly connected with the corresponding slide rod (513), the two slide rod (513) are respectively arranged in the slide groove (51), the slide groove (51) is arranged on the upper side of the shell (3), the upper side of the two slide block one (57) is respectively fixedly connected with the corresponding push plate (54); Two push plates (54) are respectively provided with a corresponding group of uniformly arranged through grooves (55), a corresponding group of circular abutment rods (510) respectively pass through a corresponding group of the through grooves (55), a corresponding group of the circular abutment rods (510) are respectively sleeved with a corresponding spring (511), one end of a corresponding group of the spring (511) is respectively fixedly connected with a corresponding push plate (54), the other end of a corresponding group of the spring (511) is respectively fixedly connected with a corresponding circular baffle (512), a corresponding group of the circular baffle (512) is respectively fixedly connected with a corresponding circular abutment rod (510).

2. The adaptive fixture for ultra-precision machining of a complex-shaped workpiece according to claim 1, wherein: The fastening module (2) is respectively provided with two groups, the fastening module (2) includes a group of slide sleeves (26), a group of the slide sleeves (26) are respectively fixedly connected to the upper side of the push plate (54), the slide sleeve (26) is in communication with the corresponding through groove (55), a group of circular rods (22) respectively pass through the corresponding slide sleeve (26), the upper end of a group of the circular rods (22) is respectively fixedly connected with the connecting plate (21).

3. The adaptive fixture for ultra-precision machining of a complex-shaped workpiece according to claim 2, wherein: The connecting plate (21) is fixedly connected with the slide block two (24), the slide block two (24) is threadedly connected with the lead screw (25), the lower end of the lead screw (25) passes through and movably connects the push plate (54).

4. The adaptive fixture for ultra-precision machining of a complex-shaped workpiece according to claim 3, wherein: The upper end of the lead screw (25) is fixedly connected to the center of the second turntable (23).

5. The adaptive fixture for ultra-precision machining of a complex-shaped workpiece according to claim 1, wherein: The outer wall edge of the shell (3) is respectively fixedly connected with a group of the tab (4).

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