Tapping clamp for nut machining

Abstract

The tapping clamp comprises a box body, a clamping assembly for pressing and clamping a nut is arranged on the upper surface of the box body, a mounting hole is formed in the center of the top of the box body, a net plate is fixedly connected to the inner side wall of the mounting hole, a sliding hole is formed in the net plate, and the sliding hole is communicated with the mounting hole. A nut through hole is formed in the box body, a positioning assembly for centering and positioning the nut through hole is arranged in the box body, the positioning assembly is in sliding fit with the sliding hole, a drawing opening is formed in the front side wall of the box body, the interior of the drawing opening is slidably connected with a waste scrap collecting drawer, and the waste scrap collecting drawer is located below the positioning assembly. Through the clamping assembly and the positioning assembly, centering positioning can be conducted on a nut through hole, accurate nut tapping is facilitated, and the nut tapping stability and the nut yield are improved; and through the arrangement of a net plate, a drawing opening and a waste chip collecting drawer, waste chips are cleaned, and the cleanliness of the machining environment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining technical field especially relates to a tapping fixture for nut processing. BACKGROUND

[0002] The nut is the nut, passes through the inside thread, with the same specification bolt is screwed together to be used to start the fastening effect spare part, all production manufacture machinery must use a component. According to the different material, divide into carbon steel, stainless steel, nonferrous metal (such as copper) several big categories. Its application field is very extensive, and the tapping precision of nut determines the quality of nut.

[0003] In the manufacturing process of hexagonal nut, there is a process that the nut is tapped, which requires a clamp to clamp the nut to ensure the stability of the nut, so that the nut will not be skewed during tapping.

[0004] Because the side wall of the nut is provided with an angle, the existing clamp cannot accurately position the through hole of the nut when clamping the outer side of the nut, which will cause errors during nut tapping, affect the yield, and the waste produced after nut tapping needs to be manually cleaned, which is time-consuming and laborious, and reduces the processing efficiency. UTILITY MODEL CONTENTS

[0005] The utility model discloses a tapping fixture for nut processing, which can center the through hole of the nut, facilitate accurate tapping of the nut, improve the stability of nut tapping and the yield of the nut, and facilitate cleaning of the waste, ensuring the cleanliness of the processing environment.

[0006] To achieve the above object, a tapping fixture for nut processing is provided, which comprises a box body, a clamping assembly for pressing and clamping the nut is arranged on the upper surface of the box body, an installation hole is formed in the center of the top of the box body, a net plate is fixedly connected to the inner side wall of the installation hole, a sliding hole is formed in the net plate, a positioning assembly for centering the through hole of the nut is arranged in the box body, the positioning assembly is in sliding connection with the sliding hole, a pulling opening is formed in the front side wall of the box body, and a waste collection drawer is slidably connected in the pulling opening.

[0007] According to the tapping fixture for nut processing, the clamping assembly comprises left and right symmetrically arranged fixing seats, electric push rods one are fixedly installed in the fixing seats, displacement frames are fixedly connected to the movable ends of the electric push rods one, electric push rods two are fixedly connected to the top ends of the displacement frames, pressing plates are fixedly connected to the movable rods of the electric push rods two, slide rails are arranged on the side walls of the pressing plates, limit grooves are formed in the opposite surfaces of the two displacement frames, and the inner side walls of the limit grooves are in sliding connection with the outer side walls of the slide rails.

[0008] According to the tapping fixture for nut machining, the bottom ends of the fixing seats are fixedly connected with the upper surface of the box body.

[0009] According to the tapping fixture for nut machining, the positioning assembly comprises fixing frames arranged in left-right symmetry, the top ends of the fixing frames are fixedly connected with electric push rods three, the movable rods of the electric push rods three are fixedly connected with slide groove shells, the left and right side walls of the slide groove shells are rotatably connected with bidirectional threaded rods, the side walls of the slide groove shells are fixedly connected with motors, the output ends of the motors are fixedly connected with one end of the bidirectional threaded rods, and the side walls of the bidirectional threaded rods are threadedly connected with L-shaped moving plates arranged in left-right symmetry.

[0010] According to the tapping fixture for nut machining, the side walls of the fixing frames are fixedly connected with the side walls of the box body.

[0011] According to the tapping fixture for nut machining, the side walls of the positioning columns are slidably connected with the inner side walls of the slide holes.

[0012] The utility model has the advantages of the following beneficial effects:

[0013] 1, compared with prior art, through the setting of clamping assembly, positioning assembly, when the nut is fixed and clamped, first, the inner wall of the nut is clamped by the positioning assembly, the central positioning of the nut through hole is realized, the nut is accurately tapped, then the clamping assembly is started to clamp the nut with the mesh plate, a stable environment is provided for nut tapping, finally, the movable rod of the electric push rod three is retracted to drive the positioning column to separate from the through hole, the nut can be processed, and the stability of nut tapping and the yield of the nut are improved.

[0014] 2, compared with prior art, through the setting of mesh plate, pulling opening and scrap collecting drawer, when the nut is tapped, the scrap falls into the box body through the mesh hole of the mesh plate and is collected by the scrap collecting drawer, when the scrap is cleaned, the scrap collecting drawer is pulled out of the pulling opening, and then the cleaning is carried out, so that the cleaning is convenient, and the cleanness of the processing environment is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in connection with the drawings and examples;

[0016] Figure 1 It is a perspective view of the tapping fixture for nut machining;

[0017] Figure 2 It is a structural view of the tapping fixture for nut machining;

[0018] Figure 3 It is a clamping assembly structural view of the tapping fixture for nut machining;

[0019] Figure 4 Figure 1 is a perspective view of the positioning assembly of the tapping clamp for nut machining of the utility model.

[0020] Legend:

[0021] 1, box; 2, screen plate; 3, clamping assembly; 4, positioning assembly; 5, scrap collecting drawer; 101, mounting hole; 102, pulling opening; 201, sliding hole; 301, fixed seat; 302, electric push rod one; 303, displacement frame; 3031, limiting groove; 304, electric push rod two; 305, pressing plate; 3051, sliding rail; 401, fixed frame; 402, electric push rod three; 403, sliding groove shell; 404, bidirectional threaded rod; 405, motor; 406, L-shaped moving plate; 407, positioning column. DETAILED DESCRIPTION

[0022] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figures 1-4 , the utility model discloses a tapping clamp for nut machining, it includes box 1, the upper surface of box 1 is equipped with the clamping assembly 3 that presses and clamps screw nut, the top center of box 1 is equipped with mounting hole 101, the inner side wall of mounting hole 101 is fixedly connected with screen plate 2, and sliding hole 201 is formed in screen plate 2, and the inside of box 1 is equipped with positioning assembly 4 that is centrally positioned to screw nut through hole, positioning assembly 4 and sliding hole 201 are slidably connected, and the front side wall of box 1 is equipped with pulling opening 102, and scrap collecting drawer 5 is slidably connected in the inside of pulling opening 102, and scrap collecting drawer 5 is below positioning assembly 4, through the screen plate 2, pulling opening 102 and scrap collecting drawer 5, when nut tapping is processed, the scrap generated is dropped into box 1 through the mesh of screen plate 2 and is collected by scrap collecting drawer 5, when the scrap is cleaned, scrap collecting drawer 5 is pulled out from pulling opening 102, so that cleaning can be carried out, and the cleanness of processing environment is ensured;

[0024] The clamping assembly 3 comprises two fixed seats 301 arranged symmetrically left and right, the bottom ends of the fixed seats 301 are fixedly connected with the upper surface of the box body 1, an electric push rod one 302 is fixedly installed in each fixed seat 301, the movable ends of the electric push rod ones 302 are fixedly connected with displacement frames 303, the top ends of the displacement frames 303 are fixedly connected with electric push rod twos 304 in penetration, the bottom ends of the movable rods of the electric push rod twos 304 are fixedly connected with pressing plates 305, the side walls of the pressing plates 305 are provided with sliding rails 3051, the opposite surfaces of the two displacement frames 303 are provided with limiting grooves 3031, and the inner side walls of the limiting grooves 3031 are in sliding connection with the outer side walls of the sliding rails 3051.

[0025] The positioning assembly 4 comprises two fixed frames 401 arranged symmetrically left and right, the side walls of the fixed frames 401 are fixedly connected with the side walls of the box body 1, the top ends of the fixed frames 401 are fixedly connected with electric push rod threes 402, the top ends of the movable rods of the electric push rod threes 402 are fixedly connected with sliding groove shells 403, the left and right side walls of the sliding groove shells 403 are rotatably connected with bidirectional threaded rods 404 in penetration, the side walls of the sliding groove shells 403 are fixedly connected with motors 405, the output ends of the motors 405 are fixedly connected with one end of the bidirectional threaded rods 404, the side walls of the bidirectional threaded rods 404 are fixedly connected with two L-shaped moving plates 406 arranged symmetrically left and right in penetration, the top ends of the L-shaped moving plates 406 are fixedly connected with positioning columns 407, and the side walls of the positioning columns 407 are in sliding connection with the inner side walls of the sliding holes 201. When the clamping assembly 3 and the positioning assembly 4 are used for clamping and fixing the nut, first of all, the two positioning columns 407 are inserted into the through hole of the nut, then the motor 405 is started to drive the bidirectional threaded rod 404 to rotate, the limiting of the sliding groove shell 403 drives the two L-shaped moving plates 406 on the two sides to move away from each other, thereby driving the two positioning columns 407 to clamp the inner wall of the nut, the central positioning of the through hole of the nut is realized, the nut is accurately tapped, then the electric push rod one 302 on the two sides is started to push the displacement frame 303 to move towards each other, when the pressing plate 305 is located above the nut, the electric push rod two 304 is started to push the pressing plate 305 downward, the nut is clamped by cooperating with the mesh plate 2, a stable environment is provided for tapping the nut, finally, the electric push rod three 402 is retracted to drive the positioning column 407 to separate from the through hole, the nut is processed, the stability of nut tapping and the yield of the nut are improved.

[0026] Working principle: when using, first, two positioning columns 407 are inserted into the through hole of the nut, then the motor 405 is started to drive the bidirectional threaded rod 404 to rotate, the limit of the sliding groove shell 403 drives the two L-shaped moving plates 406 to move away from each other, and then drives the two positioning columns 407 to clamp the inner wall of the nut, realizes the center positioning of the through hole of the nut, facilitates accurate tapping of the nut, then the two electric push rods 302 are started to push the displacement frame 303 to move towards each other, when the pressing plate 305 is above the nut, the electric push rod 304 is started to push the pressing plate 305 downwards, and the nut can be clamped by the mesh plate 2, which provides a stable environment for tapping of the nut, finally, the electric push rod 402 retracts the movable rod to drive the positioning column 407 to separate from the through hole, and the nut can be processed, when the nut is tapped, the generated waste is fallen into the box 1 through the mesh hole of the mesh plate 2 and collected by the waste collecting drawer 5, when the waste is cleaned, the waste collecting drawer 5 is pulled out from the pullout opening 102, and the waste can be cleaned.

[0027] The utility model has been described in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A tapping jig for nut machining, comprising a box body (1), characterized in that, The upper surface of the box (1) is provided with a clamping assembly (3) for pressing and clamping the nut, a mounting hole (101) is formed in the center of the top of the box (1), a mesh plate (2) is fixedly connected to the inner side wall of the mounting hole (101), a sliding hole (201) is formed in the mesh plate (2), the inside of the box (1) is provided with a positioning assembly (4) for positioning the through hole of the nut, the positioning assembly (4) is in sliding fit with the sliding hole (201), a pulling opening (102) is formed in the front side wall of the box (1), and a scrap collecting drawer (5) is slidably connected in the pulling opening (102), and the scrap collecting drawer (5) is located below the positioning assembly (4).

2. The tapping jig for nut machining according to claim 1, characterized in that, The clamping assembly (3) comprises left and right symmetrical fixing seats (301), electric push rods (302) are fixedly installed in the fixing seats (301), displacement frames (303) are fixedly connected to the movable ends of the electric push rods (302), electric push rods (two) (304) are fixedly connected to the top ends of the displacement frames (303), pressing plates (305) are fixedly connected to the bottom ends of the movable rods of the electric push rods (two) (304), slide rails (3051) are arranged on the side walls of the pressing plates (305), and limit grooves (3031) are formed in the opposite surfaces of the two displacement frames (303).

3. The tapping jig for nut machining according to claim 2, characterized in that, The bottom ends of the fixing seats (301) are fixedly connected with the upper surface of the box (1).

4. The tapping jig for nut machining as claimed in claim 1, wherein The positioning assembly (4) comprises left and right symmetrical fixing frames (401), electric push rods (three) (402) are fixedly connected to the top ends of the fixing frames (401), slide groove shells (403) are fixedly connected to the movable rods of the electric push rods (three) (402), bidirectional threaded rods (404) are rotatably connected to the left and right side walls of the slide groove shells (403), electric machines (405) are fixedly connected to the side walls of the slide groove shells (403), the output ends of the electric machines (405) are fixedly connected with one end of the bidirectional threaded rods (404), L-shaped moving plates (406) are fixedly connected to the side walls of the bidirectional threaded rods (404), and positioning columns (407) are fixedly connected to the top ends of the L-shaped moving plates (406).

5. The tapping jig for nut machining according to claim 4, characterized in that, The side walls of the fixing frames (401) are fixedly connected with the side walls of the box (1).

6. A tapping jig for nut machining as claimed in claim 4, wherein, The side walls of the positioning columns (407) are in sliding connection with the inner side walls of the sliding hole (201).

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