Jig for positioning neodymium-iron-boron magnet

Abstract

The utility model discloses a neodymium iron boron magnet positioning jig, relates to the positioning fixture technical field, including a plurality of clamping blocks and driving device, the middle position of clamping block bottom end is rotatingly connected with the adjusting block, and the both sides of clamping block bottom end are equipped with the spacing shaft, and the two spacing shaft both is sleeved with the rotating shaft, and the outer wall of rotating shaft is connected with the insection rod, and the insection rod is connected with the driving device. A connecting block is arranged at the movable end of the adjusting block, and the two sides of the connecting block are rotationally connected with a main gear and an auxiliary gear. The driving device controls the connecting shaft to rotate, the connecting shaft drives the secondary threaded shaft to rotate through cooperation of the multiple steering rods, the length of the portion, extending out of the primary threaded shaft, of the secondary threaded shaft changes along with rotation of the secondary threaded shaft, and therefore the positions of the adjusting block and the insection block are adjusted. And finally, the adjusting block and the insection block are matched to control the clamping block to move, and after the position is determined, the insection block independently moves to control the main gear to rotate to drive the clamping block to rotate along the connecting point of the adjusting block and the clamping block, so that the clamping block is better attached to the part.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a fixture for positioning a neodymium iron boron magnet. Background Art

[0002] A jig can also be called a fixture. Its function is to fix parts. Jigs are widely used in production workshops. They can quickly position and fix parts so that they can be effectively processed and manufactured.

[0003] The patent number CN210849889U discloses a fixture for positioning NdFeB magnets, including a mounting plate, a supporting base is fixedly installed on the bottom of the mounting plate, moving handles are fixedly connected to the middle of both sides of the mounting plate, a nail storage box is fixedly installed on one side of the top of the mounting plate, a NdFeB magnetic plate is fixedly installed on the top of the mounting plate, NdFeB magnetic nails are adsorbed on the surface of the NdFeB magnetic plate, and the NdFeB magnetic nails include a first NdFeB magnetic block, a second NdFeB magnetic block, a first foam pad, a sleeve rod and a second foam pad, the first foam pad is fixedly connected to the top of the first NdFeB magnetic block, the sleeve rod is fixedly connected to the middle of the top of the first NdFeB magnetic block, the second NdFeB magnetic block is movably sleeved on the surface of the sleeve rod, and the second foam pad is fixedly connected to the bottom of the second NdFeB magnetic block.

[0004] However, the NdFeB magnet positioning jig disclosed in the above patent has too narrow application range and is only suitable for magnetizing iron nails. NdFeB magnets are widely used and their shapes and sizes vary greatly. Other NdFeB magnet positioning jigs on the market are difficult to adjust when facing parts of different sizes and shapes. It takes a lot of time to adjust or replace the jig, which affects production efficiency during mass production and indirectly increases production costs. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a fixture for positioning NdFeB magnets to solve the technical problem that traditional clamps cannot adapt to parts of different sizes.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixture for positioning NdFeB magnets, comprising a plurality of clamping blocks and a driving device, an adjusting block is rotatably connected to the middle position of the bottom end of the clamping block, and limiting shafts are arranged on both sides of the bottom end of the clamping block, a rotating shaft is sleeved on the outside of the two limiting shafts, and a toothed rod is connected to the outer wall of the rotating shaft, a connecting block is arranged on the movable end of the adjusting block, a main gear and an auxiliary wheel are rotatably connected on both sides of the connecting block, the toothed rod is located in the gap between the main gear and the auxiliary wheel, the toothed rod is meshed with the main gear, and the toothed rod is in contact with the auxiliary wheel, limiting grooves are arranged on both sides of the movable end of the adjusting block, and a toothed block is slidably connected inside each limiting groove, and the bottom ends of the toothed blocks are meshed with the corresponding main gear.

[0007] By adopting the above technical solution, the adjustment block and the tooth block cooperate to control the movement of the clamping block. After the position is determined, the tooth block moves alone to control the rotation of the main gear to drive the clamping block to rotate along the connection point between the adjustment block and the clamping block, so that the clamping block fits the part more closely.

[0008] The utility model is further configured that a telescopic device is provided inside the end of the movable end of the adjusting block which is the same as the two toothed blocks, and the telescopic device includes a primary threaded shaft, a secondary threaded shaft, a steering rod and a connecting shaft. The primary threaded shaft is fixed inside the end of the movable end of the corresponding adjusting block which is the same as the two toothed blocks, a secondary threaded shaft is threadedly connected to the inside of the primary threaded shaft, and a plurality of steering rods are slidably inserted into the outside of the secondary threaded shaft, and the other end of each group of steering rods is slidably connected to a connecting shaft, and one side of each secondary threaded shaft inserted with a steering rod is rotatably connected to a driving device, and the connecting shaft is located inside the driving device, and the top end of the connecting shaft is fixed to the driving device.

[0009] By adopting the above technical solution, the driving device controls the rotation of the connecting shaft, and the connecting shaft drives the secondary threaded shaft to rotate through the cooperation of multiple steering rods. The length of the secondary threaded shaft extending from the primary threaded shaft changes with the rotation of the secondary threaded shaft.

[0010] In summary, the utility model mainly has the following beneficial effects:

[0011] The utility model controls the rotation of the connecting shaft through a driving device, and the connecting shaft drives the secondary threaded shaft to rotate through the cooperation of multiple steering rods. The length of the secondary threaded shaft extending out of the primary threaded shaft changes with the rotation of the secondary threaded shaft, thereby adjusting the position of the adjusting block and the toothed block. Finally, the adjusting block and the toothed block cooperate to control the movement of the clamping block. After the position is determined, the toothed block moves alone to control the rotation of the main gear and drive the clamping block to rotate along the connection point between the adjusting block and the clamping block, so that the clamping block fits the part more closely. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the clamping block and the telescopic device of the utility model;

[0014] Figure 3 For the utility model Figure 2 Structural cross-section view;

[0015] Figure 4 It is a half-section view of the utility model.

[0016] In the figure: 1. clamping block; 2. limiting shaft; 3. rotating shaft; 4. toothed rod; 5. main gear; 6. auxiliary wheel; 7. connecting block; 8. toothed block; 9. telescopic device; 901. primary threaded shaft; 902. secondary threaded shaft; 903. steering rod; 904. connecting shaft; 10. driving device; 11. limiting groove; 12. adjusting block. DETAILED DESCRIPTION

[0017] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0018] The following describes an embodiment of the utility model based on its overall structure.

[0019] A fixture for positioning a neodymium iron boron magnet, such as Figure 1-4 As shown, it includes a plurality of clamping blocks 1 and a driving device 10, wherein an adjusting block 12 is rotatably connected to the middle position of the bottom end of the clamping block 1, and both sides of the bottom end of the clamping block 1 are provided with limit shafts 2, and the two limit shafts 2 are sleeved with rotating shafts 3, and the outer wall of the rotating shaft 3 is connected to a toothed rod 4, and a connecting block 7 is provided at the movable end of the adjusting block 12, and both sides of the connecting block 7 are rotatably connected to a main gear 5 and an auxiliary wheel 6, and both sides of the connecting block can rotate around the axis of the main gear 5, and the toothed rod 4 is located in the gap between the main gear 5 and the auxiliary wheel 6. The toothed rod 4 is meshed with the main gear 5, and the toothed rod 4 is in contact with the subsidiary wheel 6. Limiting grooves 11 are arranged on both sides of the movable end of the adjusting block 12, and a toothed block 8 is slidably connected inside each limiting groove 11. The bottom ends of the toothed blocks 8 are meshed with the corresponding main gear 5. The adjusting block 12 and the toothed block 8 cooperate to control the movement of the clamping block 1. After the position is determined, the toothed block 8 moves alone to control the rotation of the main gear 5 to drive the clamping block 1 to rotate along the connection point between the adjusting block 12 and the clamping block 1, so that the clamping block 1 fits the part more closely.

[0020] A telescopic device 9 is provided inside the end of the movable end of the adjusting block 12 which is the same as the two toothed blocks 8. The telescopic device 9 includes a primary threaded shaft 901, a secondary threaded shaft 902, a steering rod 903 and a connecting shaft 904. The primary threaded shaft 901 is fixed inside the end of the movable end of the corresponding adjusting block 12 which is the same as the two toothed blocks 8. The primary threaded shaft 901 is internally threadedly connected with the secondary threaded shaft 902, and a plurality of steering rods 903 are slidably inserted into the outer side of the secondary threaded shaft 902. The other end of each group of steering rods 903 is slidably connected with a connecting shaft 904. The secondary threaded shaft 902 is inserted into one side of the steering rod 903 and is rotatably connected to the driving device 10, and the connecting shaft 904 is located inside the driving device 10. The top of the connecting shaft 904 is fixed to the driving device 10. The driving device 10 controls the rotation of the connecting shaft 904. The driving device 9 is a structure for outputting rotation, such as a motor. The connecting shaft 904 drives the secondary threaded shaft 902 to rotate through the cooperation of multiple steering rods 903. The depth of the insertion of the secondary threaded shaft 902 into the primary threaded shaft 901 changes with the rotation of the secondary threaded shaft 902.

[0021] Working principle: The driving device 10 controls the connection shaft 904 to rotate, and the connection shaft 904 drives the secondary threaded shaft 902 to rotate through the cooperation of multiple steering rods 903. The length of the secondary threaded shaft 902 extending from the primary threaded shaft 901 changes with the rotation of the secondary threaded shaft 902, thereby adjusting the position of the adjustment block 12 and the tooth pattern block 8, and finally rotating the connection shaft 904 synchronously. As the connection shaft 904 rotates, the steering rod 903 between the connection shaft 904 and the secondary threaded shaft 902 slides with the rotation of the connection shaft 904, and finally drives the secondary threaded shaft 902 to rotate. The shaft 902 rotates accordingly, and the adjustment block 12 and the toothed block 8 are moved synchronously through the telescopic device 9 to coordinate and control the movement of the clamping block 1. After the position is determined, the telescopic devices 9 inside the two sets of toothed blocks 8 move separately to control the rotation of the corresponding main gear 5. The connecting block 7 ensures that the subsidiary wheel 6 can rotate around the main gear 5, and under the restriction of the subsidiary wheel 6, the main gear 5 is always in meshing with the toothed rod 4. As the main gear 5 rotates, the toothed rod 4 follows the movement, and finally drives the clamping block 1 to rotate through the rotating shaft 3 and the limit shaft 2, so that the clamping block 1 fits the part more closely.

[0022] On the basis of the above structure, in this embodiment, although the embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principle and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A fixture for positioning a neodymium iron boron magnet, comprising a plurality of clamping blocks (1) and a driving device (10), characterized in that: The clamping block (1) is rotatably connected to an adjusting block (12) at the middle position of the bottom end, and both sides of the bottom end of the clamping block (1) are provided with limit shafts (2), the two limit shafts (2) are sleeved with rotating shafts (3), and the outer wall of the rotating shaft (3) is connected to a toothed rod (4), the movable end of the adjusting block (12) is provided with a connecting block (7), and both sides of the connecting block (7) are rotatably connected to a main gear (5) and an auxiliary wheel (6), the toothed rod (4) is located in the gap between the main gear (5) and the auxiliary wheel (6), the toothed rod (4) is meshed with the main gear (5), and the toothed rod (4) is in contact with the auxiliary wheel (6).

2. A fixture for positioning NdFeB magnets according to claim 1, characterized in that: Limiting grooves (11) are arranged on both sides of the movable end of the adjustment block (12), and a toothed block (8) is slidably connected inside each limiting groove (11), and the bottom end of the toothed block (8) is meshed with the corresponding main gear (5).

3. The fixture for positioning NdFeB magnets according to claim 1, characterized in that: A telescopic device (9) is provided inside the movable end of the adjustment block (12) which is the same as the two toothed blocks (8). The telescopic device (9) comprises a primary threaded shaft (901), a secondary threaded shaft (902), a steering rod (903) and a connecting shaft (904).

4. The fixture for positioning NdFeB magnets according to claim 3, characterized in that: The primary threaded shaft (901) is fixed inside the movable end of the corresponding adjustment block (12) and the same end as the two toothed blocks (8); the primary threaded shaft (901) is internally threadedly connected with a secondary threaded shaft (902); and a plurality of steering rods (903) are slidably inserted into the outer side of the secondary threaded shaft (902); and the other end of each group of steering rods (903) is slidably connected with a connecting shaft (904).

5. The fixture for positioning NdFeB magnets according to claim 4, characterized in that: The side of each secondary threaded shaft (902) inserted into the steering rod (903) is rotationally connected to the driving device (10), and the connecting shaft (904) is located inside the driving device (10), and the top end of the connecting shaft (904) is fixed to the driving device (10).

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