Precision machining structure of micro-shaping jig for special-shaped parts

Abstract

The utility model discloses a micro-shaping jig precision machining structure for special-shaped parts, which belongs to the technical field of part machining and comprises a machine table, a placing table is fixedly mounted on the upper surface of the machine table, and a pushing component is arranged on the side wall of the placing table. According to the material pushing device, by arranging the material pushing assembly, when a self-locking two-way threaded rod rotates reversely, a positioning column loses clamping of a special-shaped part, meanwhile, a rotating rod can drive a half gear to rotate under the action of ratchets and a ratchet ring, and after the half gear is meshed with a fixed rack, a material pushing plate can move towards the direction of a containing table; the engagement with the fixed rack is lost along with the rotation of the half gear, at the moment, the material pushing plate is pulled back to the original position under the action of the connecting spring, the automatic material pushing function of the jig is achieved, the special-shaped part does not need to be manually taken after being machined, on one hand, the safety of the jig can be improved, and on the other hand, the work efficiency is improved; and on the other hand, the jig machining efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of parts processing, and in particular relates to a micro-shaping fixture precision processing structure for special-shaped parts. Background Art

[0002] A fixture is a large category of tools for carpentry, ironwork, fitter, machinery, electronic control and some other handicrafts. It is mainly used as a tool to assist in controlling position or movement. The fixture can be divided into three categories: process assembly fixtures, project test fixtures and circuit board test fixtures.

[0003] A Chinese patent discloses a precision mechanical parts processing jig (CN220945076U), which relates to the technical field of parts processing. The utility model includes a base, and bolts are threadedly connected to the four corners of the upper surface of the base. The clamping assembly arranged on the upper surface of the base includes a motor arranged on the upper surface of the base, and the outer side of the rotating shaft arranged on the lower surface of the motor is connected with a large circular gear and a second pulley in sequence from top to bottom. A circular block is fixedly connected to the lower surface of the small circular gear meshingly connected to the outer side of the large circular gear, and a circular block is fixedly connected to the lower surface of the first pulley connected to the inner side of the transmission belt connected to the outer side of the second pulley, and a clamping block is arranged at the end of the L-shaped rod connected to the outer side of the circular block; the positioning assembly arranged on the upper surface of the base includes an upper opening box arranged on the upper surface of the base. The utility model shortens the moving distance of the clamping block, effectively improves the efficiency of clamping parts and components, and facilitates the rapid positioning of the parts and components on the base, effectively prevents the clamping block from pushing the parts and components to move when moving, and reduces wear. After processing special-shaped parts, the current jig lacks an automatic material-pushing mechanism, so the parts need to be manually removed after each processing. On the one hand, this reduces the processing efficiency of the jig, and on the other hand, it is dangerous to put your hands into the jig. Therefore, a micro-plastic jig precision processing structure for special-shaped parts is provided. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problems and to propose a micro-shaping fixture precision machining structure for special-shaped parts.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a micro-plastic jig precision processing structure for special-shaped parts, comprising a machine table, a placing table is fixedly installed on the upper surface of the machine table, a pushing assembly is arranged on the side wall of the placing table, and a special-shaped positioning assembly is arranged on the other side wall of the placing table;

[0006] The pusher assembly includes a positioning plate, the side wall of the positioning plate is fixedly connected to the side wall of the placing table, a rotating rod is rotatably installed on the outer surface of the positioning plate, a half gear is fixedly installed on the outer surface of the rotating rod, a groove is provided at one end of the rotating rod, and a ratchet ring is fixedly installed on the inner wall of the groove.

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

[0008] A limit plate is fixedly installed on the side wall of the placing table, a movable rod is rotatably installed on the inner wall of the limit plate, a connecting block is fixedly installed on one end of the movable rod, one end of the connecting block is rotatably connected to the inner wall of the groove, and a fixed disk is fixedly installed on the outer surface of the connecting block.

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

[0010] A mounting block is fixedly mounted on the side wall of the fixed disk, a return spring is fixedly mounted on the side wall of the mounting block, a ratchet is fixedly mounted on one end of the return spring, and the side wall of the ratchet is rotatably connected to the side wall of the fixed disk via a rotating shaft.

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

[0012] A fixed plate is fixedly installed on the upper surface of the machine table, a connecting spring is fixedly installed on the side wall of the fixed plate, a push plate is fixedly installed on one end of the connecting spring, a fixed rack is fixedly installed on the lower surface of the push plate, the fixed rack is meshed with the half gear, and the lower surface of the push plate is slidably connected to the upper surface of the placement table.

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

[0014] The special-shaped positioning component includes a positioning column and a mounting plate. The lower surface of the positioning column is slidably connected to the upper surface of the placement table. A positioning spring is fixedly installed on the inner side wall of the positioning column. A positioning pin is fixedly installed at one end of the positioning spring. One end of the positioning pin extends outside the side wall of the positioning column.

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

[0016] The side wall of the mounting plate is fixedly connected to the other side wall of the placing table, a self-locking bidirectional threaded rod is rotatably installed on the inner wall of the mounting plate, a threaded plate is threadedly installed on the outer surface of the self-locking bidirectional threaded rod, one end of the threaded plate is fixedly connected to the side wall of the positioning column, a toothed sprocket is fixedly installed on the outer surface of the self-locking bidirectional threaded rod and the outer surface of the movable rod, and the toothed sprockets are connected by a toothed chain transmission.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] 1. In the utility model, a pushing assembly is provided, and when the self-locking two-way threaded rod rotates, the movable rod will be driven to rotate under the action of the toothed sprocket and the toothed chain. When the movable rod rotates forward, the ratchet and the ratchet ring are not meshed, so the rotating rod will not be driven to rotate. When the self-locking two-way threaded rod rotates reversely, the positioning column loses the clamping of the heterogeneous parts. At the same time, under the action of the ratchet and the ratchet ring, the rotating rod will drive the half gear to rotate. When the half gear is meshed with the fixed rack, the pushing plate will move toward the placement table, thereby pushing out the heterogeneous parts. As the half gear rotates, it will lose the meshing with the fixed rack. At this time, under the action of the connecting spring, the pushing plate will be pulled back to its original position, realizing the automatic pushing function of the fixture, and there is no need to manually pick up the special-shaped parts after processing. On the one hand, the safety of the fixture can be improved, and on the other hand, the efficiency of fixture processing can be improved.

[0019] 2. In the utility model, a special-shaped positioning component is provided, the special-shaped part is placed on the upper surface of the placement table, and then the self-locking bidirectional threaded rod is rotated forward. Under the action of the thread, the threaded plate will drive the positioning column to make relative movement. After the positioning column and the special-shaped part are squeezed, the positioning pin will change according to the shape of the special-shaped part under the action of the positioning spring, so that the special-shaped part is positioned and clamped on the upper surface of the placement table. The machine performs precision processing on the special-shaped part, realizes the function that the jig can be changed according to the shape of the part, improves the stability of the jig in clamping the special-shaped part, and thus improves the precision of the jig in processing special-shaped parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a micro-plastic shaping fixture precision processing structure for special-shaped parts.

[0021] Figure 2 This is a schematic diagram of the internal structure of a micro-plastic shaping fixture for precision machining of special-shaped parts.

[0022] Figure 3 The three-dimensional structural schematic diagram of a placement table in a micro-plastics jig precision machining structure for special-shaped parts.

[0023] Figure 4 This is a schematic diagram of the planar structure of a rotating rod in a precision machining structure of a micro-plastic shaping fixture for special-shaped parts.

[0024] Legend:

[0025] 1. Machine table; 2. Placement table; 3. Special-shaped positioning assembly; 31. Positioning column; 32. Positioning spring; 33. Positioning pin; 34. Mounting plate; 35. Threaded plate; 36. Self-locking bidirectional threaded rod; 4. Pushing assembly; 41. Positioning plate; 42. Rotating rod; 43. Half gear; 44. Fixed plate; 45. Connecting spring; 46. Pushing plate; 47. Fixed rack; 48. Limiting plate; 49. Movable rod; 410. Tooth sprocket; 411. Ratchet ring; 412. Connecting block; 413. Fixed plate; 414. Mounting block; 415. Reset spring; 416. Ratchet. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-4 The utility model provides a technical solution: a micro-plastic jig precision machining structure for special-shaped parts, comprising a machine table 1, a placing table 2 is fixedly installed on the upper surface of the machine table 1, a pushing component 4 is arranged on the side wall of the placing table 2, and a special-shaped positioning component 3 is arranged on the other side wall of the placing table 2;

[0028] The push assembly 4 includes a positioning plate 41, the side wall of the positioning plate 41 is fixedly connected to the side wall of the placement table 2, a rotating rod 42 is rotatably installed on the outer surface of the positioning plate 41, a half gear 43 is fixedly installed on the outer surface of the rotating rod 42, one end of the rotating rod 42 is provided with a groove, a ratchet ring 411 is fixedly installed on the inner wall of the groove, a limiting plate 48 is fixedly installed on the side wall of the placement table 2, a movable rod 49 is rotatably installed on the inner wall of the limiting plate 48, a connecting block 412 is fixedly installed on one end of the movable rod 49, one end of the connecting block 412 is rotatably connected to the inner wall of the groove, a fixed disk 413 is fixedly installed on the outer surface of the connecting block 412, and the fixed plate 413 is fixedly installed on the outer surface of the connecting block 412. A mounting block 414 is fixedly mounted on the side wall of the fixed disk 413, a return spring 415 is fixedly mounted on the side wall of the mounting block 414, a ratchet 416 is fixedly mounted on one end of the return spring 415, and the side wall of the ratchet 416 is rotatably connected to the side wall of the fixed disk 413 through a rotating shaft, a fixing plate 44 is fixedly mounted on the upper surface of the machine table 1, a connecting spring 45 is fixedly mounted on the side wall of the fixing plate 44, a push plate 46 is fixedly mounted on one end of the connecting spring 45, a fixed rack 47 is fixedly mounted on the lower surface of the push plate 46, the fixed rack 47 is meshedly connected to the half gear 43, and the lower surface of the push plate 46 is slidably connected to the upper surface of the placement table 2.

[0029] The specific implementation method is as follows: when the self-locking two-way threaded rod 36 rotates, the movable rod 49 will be driven to rotate under the action of the sprocket wheel 410 and the toothed chain. When the movable rod 49 rotates forward, the ratchet 416 and the ratchet ring 411 are not engaged, so the rotating rod 42 will not be driven to rotate. When the self-locking two-way threaded rod 36 rotates reversely, the positioning column 31 loses its grip on the heterogeneous parts. At the same time, under the action of the ratchet 416 and the ratchet ring 411, the rotating rod 42 will drive the half gear 43 to rotate. When the half gear 43 is engaged with the fixed rack 47, the push plate 46 will move toward the placement table 2, thereby pushing out the heterogeneous parts. As the half gear 43 rotates, it will lose engagement with the fixed rack 47. At this time, the push plate 46 will be pulled back to its original position under the action of the connecting spring 45.

[0030] The special-shaped positioning component 3 includes a positioning column 31 and a mounting plate 34. The lower surface of the positioning column 31 is slidably connected to the upper surface of the placement table 2. A positioning spring 32 is fixedly installed on the inner side wall of the positioning column 31, and a positioning pin 33 is fixedly installed on one end of the positioning spring 32. One end of the positioning pin 33 extends to the outside of the side wall of the positioning column 31. The side wall of the mounting plate 34 is fixedly connected to the other side wall of the placement table 2. A self-locking bidirectional threaded rod 36 is rotatably installed on the inner wall of the mounting plate 34. A threaded plate 35 is threadedly installed on the outer surface of the self-locking bidirectional threaded rod 36. One end of the threaded plate 35 is fixedly connected to the side wall of the positioning column 31. A toothed sprocket 410 is fixedly installed on the outer surface of the self-locking bidirectional threaded rod 36 and the outer surface of the movable rod 49. The toothed sprockets 410 are connected by a toothed chain transmission.

[0031] The specific implementation method is as follows: place the heterogeneous part on the upper surface of the placement table 2, and then rotate the self-locking bidirectional threaded rod 36 in the forward direction. Under the action of the thread, the threaded plate 35 will drive the positioning column 31 to make relative movement. After the positioning column 31 and the heterogeneous part are squeezed, the positioning pin 33 will change according to the shape of the heterogeneous part under the action of the positioning spring 32, thereby positioning and clamping the heterogeneous part on the upper surface of the placement table 2, and the machine 1 performs precision processing on the heterogeneous part.

[0032] Working principle: Place the heterosexual part on the upper surface of the placement table 2, and then rotate the self-locking bidirectional threaded rod 36 in the positive direction. Under the action of the thread, the threaded plate 35 will drive the positioning column 31 to make relative movement. After the positioning column 31 and the heterosexual part are squeezed, the positioning pin 33 will change according to the shape of the heterosexual part under the action of the positioning spring 32, so as to position and clamp the heterosexual part on the upper surface of the placement table 2. The machine 1 performs precision processing on the heterosexual part. When the self-locking bidirectional threaded rod 36 rotates, it will drive the movable rod 49 to rotate under the action of the sprocket wheel 410 and the toothed chain. When the movable rod 49 rotates in the positive direction, The ratchet 416 is not meshed with the ratchet ring 411, so it will not drive the rotating rod 42 to rotate. When the self-locking bidirectional threaded rod 36 rotates in the opposite direction, the positioning column 31 loses its grip on the heterogeneous parts. At the same time, under the action of the ratchet 416 and the ratchet ring 411, the rotating rod 42 will drive the half gear 43 to rotate. When the half gear 43 is meshed with the fixed rack 47, the push plate 46 will move toward the placement table 2, thereby pushing out the heterogeneous parts. As the half gear 43 rotates, it will lose engagement with the fixed rack 47. At this time, the push plate 46 will be pulled back to its original position under the action of the connecting spring 45.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A micro-plastic shaping jig precision machining structure for special-shaped parts, comprising a machine (1), characterized in that: A placing table (2) is fixedly mounted on the upper surface of the machine platform (1), a material pushing assembly (4) is arranged on the side wall of the placing table (2), and a special-shaped positioning assembly (3) is arranged on the other side wall of the placing table (2); The pusher assembly (4) comprises a positioning plate (41), the side wall of the positioning plate (41) is fixedly connected to the side wall of the placement table (2), a rotating rod (42) is rotatably mounted on the outer surface of the positioning plate (41), a half gear (43) is fixedly mounted on the outer surface of the rotating rod (42), a groove is provided at one end of the rotating rod (42), and a ratchet ring (411) is fixedly mounted on the inner wall of the groove.

2. The micro-plastic shaping fixture precision machining structure of special-shaped parts according to claim 1 is characterized in that: A limit plate (48) is fixedly mounted on the side wall of the placement table (2); a movable rod (49) is rotatably mounted on the inner wall of the limit plate (48); a connecting block (412) is fixedly mounted on one end of the movable rod (49); one end of the connecting block (412) is rotatably connected to the inner wall of the groove; and a fixed disk (413) is fixedly mounted on the outer surface of the connecting block (412).

3. The micro-plastic shaping fixture precision machining structure of special-shaped parts according to claim 2 is characterized in that: A mounting block (414) is fixedly mounted on the side wall of the fixed disk (413), a return spring (415) is fixedly mounted on the side wall of the mounting block (414), a ratchet (416) is fixedly mounted on one end of the return spring (415), and the side wall of the ratchet (416) is rotatably connected to the side wall of the fixed disk (413) via a rotating shaft.

4. The micro-plastic shaping fixture precision machining structure of special-shaped parts according to claim 3 is characterized in that: A fixed plate (44) is fixedly mounted on the upper surface of the machine platform (1), a connecting spring (45) is fixedly mounted on the side wall of the fixed plate (44), a push plate (46) is fixedly mounted on one end of the connecting spring (45), a fixed rack (47) is fixedly mounted on the lower surface of the push plate (46), the fixed rack (47) is meshingly connected to the half gear (43), and the lower surface of the push plate (46) is slidably connected to the upper surface of the placement table (2).

5. The micro-plastic shaping fixture precision machining structure of special-shaped parts according to claim 4 is characterized in that: The special-shaped positioning component (3) comprises a positioning column (31) and a mounting plate (34); the lower surface of the positioning column (31) is slidably connected to the upper surface of the placement table (2); a positioning spring (32) is fixedly mounted on the inner side wall of the positioning column (31); a positioning pin (33) is fixedly mounted on one end of the positioning spring (32); and one end of the positioning pin (33) extends outside the side wall of the positioning column (31).

6. The micro-plastic shaping fixture precision machining structure of special-shaped parts according to claim 5, characterized in that: The side wall of the mounting plate (34) is fixedly connected to the other side wall of the placement table (2); a self-locking bidirectional threaded rod (36) is rotatably mounted on the inner wall of the mounting plate (34); a threaded plate (35) is threadedly mounted on the outer surface of the self-locking bidirectional threaded rod (36); one end of the threaded plate (35) is fixedly connected to the side wall of the positioning column (31); a toothed sprocket (410) is fixedly mounted on the outer surface of the self-locking bidirectional threaded rod (36) and the outer surface of the movable rod (49); and the toothed sprockets (410) are connected to each other via a toothed chain transmission.

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