Anti-moving positioning structure for precise shaft core machining

Abstract

The utility model relates to the technical field of precise central spindle machining, in particular to an anti-moving positioning structure for precise central spindle machining, which comprises a base, sliding rods are fixedly mounted at two ends of the inside of the base, a first double-thread screw is movably mounted in the middle of the inside of the base, and moving seats are sleeved at two ends of the first double-thread screw. A user inserts a precise shaft core into a clamping hole, the user rotates an adjusting ring, the adjusting ring rotates in an annular groove, the adjusting ring drives a plurality of clamping threaded sleeves to rotate through an adjusting gear ring and a bevel gear, a limiting block is matched with a limiting groove, the clamping threaded rod can be limited, and the clamping threaded rod can be clamped through the limiting block. And the clamping screw rod moves towards the interior of the clamping hole along with the rotation of the clamping screw sleeve under the action of threads, so that the clamping blocks are attached to the two sides of the precise shaft core, the precise shaft core can be conveniently clamped, and under the action of an anti-skid rubber strip, the precise shaft core can be prevented from rotating, and the machining effect is not affected.

Description

Technical Field

[0001] The utility model relates to an anti-movement positioning structure, in particular to an anti-movement positioning structure for precision shaft core processing, and belongs to the technical field of precision shaft core processing. Background Art

[0002] Micro shafts are relatively small and have high precision. Some are also called precision shafts, small shafts, shaft cores, rotor shafts, pins, rivets, guide rods, etc. The main materials are various carbon steels, stainless steels, copper, aluminum, etc. The surface treatments are mainly galvanizing, nickel, blackening, carburizing, etc. Some industries also require salt spray tests to prevent rust for several days and nights. The main processing procedures are punching, grinding, surface treatment, turning, sorting, packaging, etc. The main processing equipment includes grinders, lathes, instrument lathes, heat treatment, barrel throwing, etc.

[0003] After searching, a precision shaft core processing and positioning component with a publication number of CN213997842U was disclosed;

[0004] After searching, a positioning tool for processing a spline mandrel with a publication number of CN216730704U was disclosed;

[0005] Existing positioning devices for precision shaft core processing mostly position the shaft core by opening holes on the surface of a clamp, or by clamping the shaft core with two clamps against each other. Although both can position the precision shaft core, the precision shaft core can easily rotate due to force during the processing, thus affecting the processing effect. Moreover, the existing positioning structure cannot clamp and fix precision shaft cores of different diameters according to the needs of users, and has certain limitations in use.

[0006] Therefore, it is urgent to improve the existing independent grounding system of the anechoic chamber to solve the above-mentioned problems. Utility Model Content

[0007] The purpose of the utility model is to provide an anti-displacement positioning structure for precision shaft core processing, which can solve the problem that the existing positioning devices for precision shaft core processing are mostly positioned by opening holes on the surface of the clamping plate, or clamped by two clamping plates against each other. Although both can position the precision shaft core, the precision shaft core is easily rotated by force during the processing, affecting the processing effect, and the existing positioning structure cannot clamp and fix precision shaft cores of different diameters according to the needs of users, and has certain limitations in use.

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: an anti-displacement positioning structure for precision shaft core processing, including a base, sliding rods are fixedly installed on both ends of the base, a first double-thread screw is movably installed in the middle of the base, both ends of the first double-thread screw are sleeved with a movable seat, the movable seat is movably connected to the sliding rod, the movable seat is threadedly connected to the first double-thread screw, movable grooves are opened on both sides of the upper end of the base, and a movable block connected to the movable frame is movably inserted in the movable groove, a clamping seat is movably installed on both sides of the upper end of the base, the lower end of the clamping seat is fixedly connected to the movable block, a clamping hole is opened in the clamping seat, a clamping structure is arranged in the clamping seat, and movable splints are movably installed at both ends of the base.

[0009] Preferably, a second double-thread screw is movably installed inside the two sliding rods, and the two double-thread screws are connected to each other through a transmission sprocket and a transmission chain, and a rotating handle is installed at one end of one of the double-thread screws.

[0010] Preferably, both ends of the second double-thread screw are movably sleeved with movable screw sleeves, the movable screw sleeves are movably inserted into the interior of the sliding rod, the outer side of the sliding rod is sleeved with a movable sleeve, the movable sleeve is connected to the movable screw sleeve, and the upper end of the movable sleeve is equipped with a connecting block that passes through the movable groove and is connected to the splint.

[0011] Preferably, both sides of the slide rod surface are provided with slide grooves, a slider is movably inserted inside the slide groove, and two ends of the slider are respectively fixedly connected to the inner wall of the movable sleeve and the outer side of the movable screw sleeve.

[0012] Preferably, the clamping structure comprises an annular groove, which is provided inside the clamping seat and outside the clamping hole, and through holes connected to the annular groove are provided on both sides of the inner wall of the clamping hole.

[0013] Preferably, clamping screw sleeves are rotatably installed on both sides of the inner wall of the annular groove, a clamping screw is movably inserted into one end of the clamping screw sleeve, one end of the clamping screw passes through the through hole and is inserted into the inside of the clamping hole, a clamping block is installed at one end of the clamping screw, the clamping block is in an arc shape, and an anti-slip rubber strip is provided on one side of the clamping block.

[0014] Preferably, a bevel gear is installed at one end of the clamping nut, an adjusting ring is rotatably installed inside the annular groove, and the inner ring of the adjusting ring is provided with an adjusting gear ring meshing with the bevel gear.

[0015] Preferably, limiting grooves are provided on both sides of the clamping screw, and limiting blocks matching with the limiting grooves are fixedly provided on both sides of the through hole.

[0016] The utility model has at least the following beneficial effects:

[0017] 1. In the utility model, the user inserts the precision shaft core into the interior of the clamping hole, and the user rotates the adjusting ring, and the adjusting ring rotates inside the annular groove. The adjusting ring drives multiple clamping screw sleeves to rotate through the adjusting gear ring and the bevel gear. The limit block and the limit groove cooperate to limit the clamping screw to prevent the clamping screw from rotating. Under the action of the thread, the clamping screw moves toward the interior of the clamping hole as the clamping screw sleeve rotates, so that the clamping block fits with both sides of the precision shaft core, which is convenient for clamping the precision shaft core. Under the action of the anti-slip rubber strip, the precision shaft core can be prevented from rotating to affect the processing effect.

[0018] 2. In the utility model, the user rotates the second double-thread screw by rotating the handle. The two second double-thread screws can rotate synchronously under the action of the transmission sprocket and the transmission chain. The movable screw sleeves on both sides move in relative directions along the second double-thread screws under the action of the threads. The movable screw sleeve drives the movable sleeve to move along the surface of the slide rod through the slider. The movable sleeve drives the splint to move through the slider, so that the splint fits with the two ends of the precision shaft core, thereby preventing the shaft core from moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the device of the utility model;

[0021] Figure 2 It is a half-section structure schematic diagram of the installation position of the clamping seat of the device of the utility model;

[0022] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of the mobile splint installation location of the utility model;

[0024] Figure 5 For this utility model Figure 4 Enlarged structural diagram at B in the middle.

[0025] In the figure, 1, base; 2, movable groove; 3, clamping seat; 4, movable clamping plate; 5, sliding rod; 6, first double-thread screw; 7, movable seat; 8, clamping hole; 9, annular groove; 10, clamping screw sleeve; 11, clamping screw; 12, clamping block; 13, anti-slip rubber strip; 14, limiting groove; 15, limiting block; 16, bevel gear; 17, adjusting ring; 18, adjusting gear ring; 19, second double-thread screw; 20, movable screw sleeve; 21, movable sleeve; 22, slider; 23, connecting block. DETAILED DESCRIPTION

[0026] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] like Figures 1 to 5 As shown, the present embodiment provides an anti-displacement positioning structure for precision shaft core machining, comprising a base 1, wherein sliding rods 5 are fixedly installed at both ends of the interior of the base 1, a first double-thread screw 6 is movably installed in the middle of the interior of the base 1, a moving seat 7 is sleeved on both ends of the first double-thread screw 6, the moving seat 7 is movably connected to the sliding rod 5, the moving seat 7 is threadedly connected to the first double-thread screw 6, moving grooves 2 are provided on both sides of the upper end of the base 1, a moving block connected to the moving frame is movably inserted in the interior of the moving groove 2, a clamping seat 3 is movably installed on both sides of the upper end of the base 1, the lower end of the clamping seat 3 is fixedly connected to the moving block, a clamping hole 8 is provided in the interior of the clamping seat 3, and a clamping structure is provided in the interior of the clamping seat 3;

[0028] In this embodiment, the user rotates the first double-thread screw 6, and the moving seat 7 moves along the surface of the first double-thread screw 6 and the sliding rod 5 under the action of the thread, and the moving seats 7 on both sides move in relative or separate directions. The moving seat 7 drives the clamping seat 3 to move through the moving block, and the distance between the two clamping seats 3 can be adjusted, which is convenient for clamping precision shaft cores of different lengths, and can also clamp different positions of the shaft core;

[0029] like Figure 1 , Figure 4 and Figure 5As shown, the present embodiment provides an anti-shift positioning structure for precision shaft core processing, wherein both ends of the base 1 are movably mounted with a movable splint 4, and the interiors of the two sliding rods 5 are movably mounted with a second double-thread screw 19, and the two double-thread screws are connected to each other through a transmission sprocket and a transmission chain, and one end of one of the double-thread screws is mounted with a rotating handle, and both ends of the second double-thread screw 19 are movably sleeved with a movable screw sleeve 20, and the movable screw sleeve 20 is movably inserted into the interior of the sliding rod 5, and the outer side of the sliding rod 5 is sleeved with a movable sleeve 21, and the movable sleeve 21 is connected to the movable screw sleeve 20, and a connecting block 23 that passes through the movable groove 2 and is connected to the splint is mounted on the upper end of the movable sleeve 21, and sliding grooves are provided on both sides of the surface of the sliding rod 5, and a slider 22 is movably inserted into the interior of the sliding groove, and the two ends of the slider 22 are respectively fixedly connected to the inner wall of the movable sleeve 21 and the outer side of the movable screw sleeve 20;

[0030] In this embodiment, the user rotates the second double-thread screw 19 by rotating the handle. The two second double-thread screws 19 can rotate synchronously under the action of the transmission sprocket and the transmission chain. The movable screw sleeves 20 on both sides move in relative directions along the second double-thread screws 19 under the action of the threads. The movable screw sleeves 20 drive the movable sleeve 21 to move along the surface of the slide rod 5 through the slider 22. The movable sleeve 21 drives the splint to move through the slider 22, so that the splint fits with the two ends of the precision shaft core to prevent the shaft core from moving.

[0031] like Figures 1 to 3 As shown, the present embodiment provides an anti-displacement positioning structure for precision shaft core machining, wherein the clamping structure comprises an annular groove 9, wherein the annular groove 9 is arranged inside the clamping seat 3 and outside the clamping hole 8, and through holes connected to the annular groove 9 are arranged on both sides of the inner wall of the clamping hole 8, and clamping screw sleeves 10 are rotatably installed on both sides of the inner wall of the annular groove 9, and a clamping screw 11 is movably inserted into one end of the clamping screw sleeve 10, and one end of the clamping screw 11 passes through the through hole and is inserted into the inside of the clamping hole 8, and the clamping screw A clamping block 12 is installed at one end of the rod 11, and the clamping block 12 is in an arc shape. A non-slip rubber strip 13 is provided on one side of the clamping block 12. A bevel gear 16 is installed at one end of the clamping screw sleeve 10. An adjusting ring 17 is rotatably installed inside the annular groove 9. The inner ring of the adjusting ring 17 is provided with an adjusting gear ring 18 meshing with the bevel gear 16. Limiting grooves 14 are provided on both sides of the clamping screw 11, and limiting blocks 15 matching the limiting grooves 14 are fixed on both sides of the perforated hole.

[0032] In this embodiment, the user inserts the precision shaft core into the interior of the clamping hole 8, and the user rotates the adjusting ring 17, and the adjusting ring 17 rotates inside the annular groove 9. The adjusting ring 17 drives multiple clamping screw sleeves 10 to rotate through the adjusting gear ring 18 and the bevel gear 16. The limit block 15 and the limit groove 14 cooperate to limit the clamping screw 11 to prevent the clamping screw 11 from rotating. Under the action of the thread, the clamping screw 11 moves toward the inside of the clamping hole 8 as the clamping screw sleeve 10 rotates, so that the clamping block 12 fits against the two sides of the precision shaft core, which is convenient for clamping the precision shaft core. Under the action of the anti-slip rubber strip 13, the precision shaft core can be prevented from rotating to affect the processing effect.

[0033] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0034] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0035] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A precision shaft core machining anti-displacement positioning structure, comprising a base (1), characterized in that: Slide rods (5) are fixedly installed at both ends of the base (1), a first double-thread screw (6) is movably installed in the middle of the base (1), and a movable seat (7) is sleeved on both ends of the first double-thread screw (6), the movable seat (7) is movably connected to the slide rod (5), and the movable seat (7) is threadedly connected to the first double-thread screw (6). Both sides of the upper end of the base (1) are provided with movable grooves (2), and a movable block connected to the movable frame is movably inserted in the movable groove (2). Both sides of the upper end of the base (1) are movably installed with a clamping seat (3), the lower end of the clamping seat (3) is fixedly connected to the movable block, a clamping hole (8) is opened in the clamping seat (3), and a clamping structure is arranged in the clamping seat (3), and movable clamping plates (4) are movably installed at both ends of the base (1).

2. The anti-displacement positioning structure for precision shaft core machining according to claim 1, characterized in that: A second double-thread screw (19) is movably mounted inside the two slide bars (5), and the two double-thread screws are connected to each other through a transmission sprocket and a transmission chain, and a rotating handle is mounted at one end of one of the double-thread screws.

3. The anti-displacement positioning structure for precision shaft core machining according to claim 2, characterized in that: Both ends of the second double-thread screw (19) are movably sleeved with movable screw sleeves (20), and the movable screw sleeve (20) is movably inserted into the interior of the sliding rod (5). The outer side of the sliding rod (5) is sleeved with a movable sleeve (21), and the movable sleeve (21) is connected to the movable screw sleeve (20). The upper end of the movable sleeve (21) is installed with a connecting block (23) that passes through the movable groove (2) and is connected to the clamping plate.

4. The anti-displacement positioning structure for precision shaft core machining according to claim 3 is characterized in that: Slide grooves are provided on both sides of the surface of the slide rod (5), and a slider (22) is movably inserted into the slide groove. The two ends of the slider (22) are respectively fixedly connected to the inner wall of the movable sleeve (21) and the outer side of the movable screw sleeve (20).

5. The anti-displacement positioning structure for precision shaft core machining according to claim 1, characterized in that: The clamping structure comprises an annular groove (9) which is arranged inside the clamping seat (3) and outside the clamping hole (8). Through holes connected to the annular groove (9) are arranged on both sides of the inner wall of the clamping hole (8).

6. The anti-displacement positioning structure for precision shaft core machining according to claim 5, characterized in that: A clamping screw sleeve (10) is rotatably mounted on both sides of the inner wall of the annular groove (9), a clamping screw (11) is movably inserted into one end of the clamping screw sleeve (10), one end of the clamping screw (11) passes through the through hole and is inserted into the inside of the clamping hole (8), a clamping block (12) is mounted on one end of the clamping screw (11), the clamping block (12) is in an arc shape, and a non-slip rubber strip (13) is arranged on one side of the clamping block (12).

7. The anti-displacement positioning structure for precision shaft core machining according to claim 6, characterized in that: A bevel gear (16) is installed at one end of the clamping screw sleeve (10), an adjusting ring (17) is rotatably installed inside the annular groove (9), and an adjusting gear ring (18) meshing with the bevel gear (16) is arranged on the inner ring of the adjusting ring (17).

8. The anti-displacement positioning structure for precision shaft core machining according to claim 7, characterized in that: Limiting grooves (14) are provided on both sides of the clamping screw (11), and limiting blocks (15) matching the limiting grooves (14) are fixedly provided on both sides of the inside of the through hole.

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