Clamping mechanism for nut machining

Abstract

The utility model relates to the technical field of nut machining, in particular to a clamping mechanism for nut machining, which comprises a bottom plate, three supporting columns are fixedly mounted on the top surface of the bottom plate, a fixing plate is fixedly mounted at the upper ends of the three supporting columns, a clamping mechanism is arranged above the fixing plate, a pressing mechanism is arranged above the clamping mechanism, and a clamping mechanism is arranged above the pressing mechanism. The clamping mechanism comprises a clamping part and a power part, the clamping mechanism is used for clamping and fixing the outer wall of the nut, the pressing mechanism comprises a connecting part and a pressing part, and the pressing mechanism is used for pressing and fixing the bottom surface of the nut. According to the nut tapping device, the threaded rod is driven to rotate by rotating the handle, the movable plate moves downwards under the driving of the threaded rod, the movable plate drives the connecting rod to move downwards, and the connecting rod drives the pressing block to move downwards to press a nut, so that the nut is not prone to moving in the vertical direction when tapping is carried out; and therefore, the nut tapping accuracy and quality are ensured.

Description

Technical Field

[0001] The utility model relates to the field of nut processing, in particular to a clamping mechanism for nut processing. Background Art

[0002] Bolt, mechanical part, cylindrical threaded fastener with nut. A type of fastener consisting of a head and a screw, which needs to be matched with a nut to fasten two parts with through holes. This type of connection is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. When tapping a nut that matches a single or a small number of bolts, the nut needs to be clamped and fixed to prevent the nut from shifting or rotating.

[0003] The Chinese patent publication number CN211219016U discloses a clamp for processing nuts supporting connecting rod bolts. The screw rod at one end of the base is rotated to drive the second clamping plate to slide on the top of the base, so as to clamp and remove the nut. The opposite sides of the first clamping plate and the second clamping plate are symmetrically distributed triangular groove structures, which are conducive to the resistance and clamping of the corners of the nut, so that the nut is firmly clamped and not easy to loosen. The positive and negative rotation of the screw rod increases the efficiency of nut clamping and removal. At the same time, racks are installed on both sides of the second clamping plate. By rotating the blocks on both sides of the top of the base, the blocks are made to resist the racks in different directions, which is conducive to unidirectional resistance to the rack, preventing the second clamping plate from loosening, and can also prevent the screw rod from being subjected to force all the time, thereby increasing the service life of the screw rod.

[0004] However, there are still the following disadvantages: the device only clamps and fixes the outer wall of the nut by the first clamping plate and the second clamping plate. After long-term use, when the inner wall of the nut is tapped, the nut is prone to vertical shaking, which affects the accuracy and quality of the tapping.

[0005] Therefore, a clamping mechanism for nut processing has been proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a clamping mechanism for nut processing to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solution: a clamping mechanism for nut processing, comprising a bottom plate, three support columns are fixedly installed on the top surface of the bottom plate, a fixing plate is fixedly installed on the upper ends of the three support columns, a clamping mechanism is arranged above the fixing plate, and a pressing mechanism is arranged above the clamping mechanism;

[0008] The clamping mechanism comprises a clamping part and a power part, and the clamping mechanism is used to clamp and fix the outer wall of the nut;

[0009] The pressing mechanism comprises a connecting portion and a pressing portion, and the pressing mechanism is used to press and fix the bottom surface of the nut.

[0010] Preferably, the clamping portion comprises three clamping plates slidably mounted on the top surface of the fixed plate, sliding blocks are fixedly mounted on the bottom surfaces of the three clamping plates, and limiting blocks are fixedly mounted on both sides of the three sliding blocks.

[0011] Preferably, three cross grooves are formed through the top surface of the fixing plate, the three sliding block side surfaces and the plurality of limit block side surfaces are respectively slidably connected to the inner walls of the three cross grooves, and the bottom surfaces of the three sliding blocks are respectively fixedly mounted with connecting columns.

[0012] Preferably, the power unit includes a motor fixedly mounted on the top surface of the base plate, a rotating shaft is fixedly mounted on the output end of the motor, a rotating plate is fixedly sleeved on the outer wall of the upper end of the rotating shaft, three arc-shaped grooves are opened through the top surface of the rotating plate, and the inner walls of the three arc-shaped grooves are slidably connected to the outer walls of three connecting columns respectively.

[0013] Preferably, the connecting portion comprises fixing boxes respectively fixedly mounted on the top surfaces of the three clamping plates, movable plates are respectively slidably mounted on the inner walls of the three fixing boxes, and threaded holes are respectively opened through the top surfaces of the three movable plates.

[0014] Preferably, threaded rods are rotatably mounted on the inner walls of the lower ends of the three fixed boxes respectively through the first bearing seat, and the upper ends of the three threaded rods are rotatably mounted through the second bearing seat to penetrate the inner walls of the upper ends of the three fixed boxes and extend to the top of the fixed boxes, and handles are fixedly mounted on the upper ends of the three threaded rods respectively, and the outer walls of the three threaded rods are threadedly connected to the inner walls of the three threaded holes respectively.

[0015] Preferably, the pressing part includes a plurality of connecting rods fixedly mounted on the sides of the three movable plates respectively, a plurality of movable grooves are respectively opened on the sides of the three fixed boxes, the sides of the plurality of connecting rods are respectively slidably connected to the inner walls of the plurality of movable grooves, and three pressing blocks are respectively fixedly mounted on the lower ends of the plurality of connecting rods.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model drives the threaded rod to rotate by rotating the handle, and the movable plate moves downward under the drive of the threaded rod, and the movable plate drives the connecting rod to move downward, and the connecting rod drives the pressure block to move downward to press the nut, so that the nut is not prone to vertical movement during tapping, thereby ensuring the accuracy and quality of the nut tapping.

[0018] By turning on the motor, the rotating shaft and the rotating plate are driven to rotate, and the rotating plate drives the three connecting columns to move on the inner wall of the arc groove. Under the action of the cross groove and the limit block, the three connecting columns drive the slider and the clamping plate to move in a straight line to clamp and fix the outer wall of the nut. Since the inner wall of the clamping plate coincides with the outer wall of the nut, the nut is clamped and fixed more firmly, is not easy to shake, and the processing quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings:

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

[0021] Figure 2 This is a schematic diagram of the bottom surface of the structure of the utility model;

[0022] Figure 3 This is an exploded schematic diagram of the structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the structural section of the utility model;

[0024] Figure 5 It is a cross-sectional schematic diagram of the fixing box structure of the utility model.

[0025] In the figure: 1. bottom plate; 101. support column; 102. fixed plate; 2. clamping mechanism; 201. clamping plate; 202. slider; 203. limit block; 204. cross groove; 205. connecting column; 206. rotating plate; 207. arc groove; 208. rotating shaft; 209. motor; 3. pressing mechanism; 301. fixed box; 302. moving plate; 303. threaded rod; 304. handle; 305. connecting rod; 306. moving groove; 307. pressing block. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0027] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0028] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0031] Embodiment 1

[0032] See also Figures 1 to 5 The utility model provides a technical solution: a clamping mechanism for nut processing, comprising a bottom plate 1, three support columns 101 are fixedly installed on the top surface of the bottom plate 1, a fixing plate 102 is fixedly installed on the upper ends of the three support columns 101, a clamping mechanism 2 is arranged above the fixing plate 102, and a pressing mechanism 3 is arranged above the clamping mechanism 2;

[0033] The clamping mechanism 2 includes a clamping part and a power part. The clamping mechanism 2 is used to clamp and fix the outer wall of the nut. The clamping part includes three clamping plates 201 slidably installed on the top surface of the fixed plate 102. The bottom surfaces of the three clamping plates 201 are respectively fixedly installed with sliders 202. Limiting blocks 203 are respectively fixedly installed on both sides of the three sliders 202. Three cross grooves 204 are opened through the top surface of the fixed plate 102. The side surfaces of the three sliders 202 and the side surfaces of multiple limiting blocks 203 are respectively slidably connected to the inner walls of the three cross grooves 204. Connecting columns 205 are respectively fixedly installed on the bottom surfaces of the three sliders 202. The power part includes a motor 209 fixedly installed on the top surface of the base plate 1. A rotating shaft 208 is fixedly installed at the output end of the motor 209. A rotating plate 206 is fixedly sleeved on the outer wall of the upper end of the rotating shaft 208. Three arc grooves 207 are opened through the top surface of the rotating plate 206. The inner walls of the three arc grooves 207 are respectively slidably connected to the outer walls of the three connecting columns 205.

[0034] By turning on the motor 209, the rotating shaft 208 and the rotating plate 206 are driven to rotate, and the rotating plate 206 drives the three connecting columns 205 to move on the inner wall of the arc groove 207. Under the action of the cross groove 204 and the limit block 203, the three connecting columns 205 drive the slider 202 and the clamping plate 201 to move linearly to clamp and fix the outer wall of the nut. Since the inner wall of the clamping plate 201 coincides with the outer wall of the nut, the nut is clamped and fixed more firmly, is not easy to shake, and the processing quality is improved.

[0035] Embodiment 2

[0036] On the basis of the first embodiment, the pressing mechanism 3 includes a connecting portion and a pressing portion, and the pressing mechanism 3 is used to press and fix the bottom surface of the nut. The connecting portion includes a fixing box 301 fixedly installed on the top surface of the three clamping plates 201, and the inner walls of the three fixing boxes 301 are respectively slidably installed with a moving plate 302, and the top surfaces of the three moving plates 302 are respectively penetrated with threaded holes, and the inner walls of the lower ends of the three fixing boxes 301 are respectively rotatably installed with a threaded rod 303 through the first bearing seat, and the upper ends of the three threaded rods 303 are respectively rotated through the second bearing seat to penetrate the three fixings. The inner wall of the upper end of the box 301 extends to the top of the fixed box 301, and the upper ends of the three threaded rods 303 are respectively fixed with handles 304, and the outer walls of the three threaded rods 303 are respectively threadedly connected to the inner walls of the three threaded holes, and the pressing part includes a plurality of connecting rods 305 respectively fixedly installed on the sides of the three movable plates 302, and the sides of the three fixed boxes 301 are respectively provided with a plurality of movable grooves 306, and the sides of the plurality of connecting rods 305 are respectively slidably connected to the inner walls of the plurality of movable grooves 306, and the lower ends of the plurality of connecting rods 305 are respectively fixedly installed with three pressing blocks 307.

[0037] By rotating the handle 304, the threaded rod 303 is driven to rotate. Driven by the threaded rod 303, the movable plate 302 moves downward, and the movable plate 302 drives the connecting rod 305 to move downward. The connecting rod 305 drives the pressure block 307 to move downward to press the nut, so that the nut is not prone to vertical movement during tapping, thereby ensuring the accuracy and quality of the nut tapping.

[0038] When the utility model is in use, the nut is placed on the fixed plate 102, and the motor 209 is turned on to drive the rotating shaft 208 and the rotating plate 206 to rotate. The rotating plate 206 drives the three connecting columns 205 to move on the inner wall of the arc groove 207. Under the action of the cross groove 204 and the limit block 203, the three connecting columns 205 drive the slider 202 and the clamping plate 201 to move linearly to clamp and fix the outer wall of the nut. Since the inner wall of the clamping plate 201 coincides with the outer wall of the nut, the nut is clamped and fixed more firmly and is not easy to shake. The handle 304 is turned to drive the threaded rod 303 to rotate. Driven by the threaded rod 303, the movable plate 302 moves downward, and the movable plate 302 drives the connecting rod 305 to move downward. The connecting rod 305 drives the pressing block 307 to move downward to press the nut, so that the nut is not easy to move in the vertical direction when tapping, thereby ensuring the accuracy and quality of the nut tapping.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0040] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A clamping mechanism for nut processing, comprising a base plate (1), characterized in that: Three support columns (101) are fixedly mounted on the top surface of the bottom plate (1), a fixing plate (102) is fixedly mounted on the upper ends of the three support columns (101), a clamping mechanism (2) is arranged above the fixing plate (102), and a pressing mechanism (3) is arranged above the clamping mechanism (2); The clamping mechanism (2) comprises a clamping part and a power part, and the clamping mechanism (2) is used to clamp and fix the outer wall of the nut; The pressing mechanism (3) comprises a connecting portion and a pressing portion, and the pressing mechanism (3) is used to press and fix the bottom surface of the nut.

2. The nut processing clamping mechanism according to claim 1, characterized in that: The clamping portion comprises three clamping plates (201) slidably mounted on the top surface of the fixed plate (102), the bottom surfaces of the three clamping plates (201) are respectively fixedly mounted with sliders (202), and both sides of the three sliders (202) are respectively fixedly mounted with limit blocks (203).

3. The nut processing clamping mechanism according to claim 2, characterized in that: The top surface of the fixing plate (102) is provided with three cross grooves (204); the side surfaces of the three sliders (202) and the side surfaces of the plurality of limit blocks (203) are respectively slidably connected to the inner walls of the three cross grooves (204); and the bottom surfaces of the three sliders (202) are respectively fixedly mounted with connecting columns (205).

4. The nut processing clamping mechanism according to claim 3, characterized in that: The power unit comprises a motor (209) fixedly mounted on the top surface of the bottom plate (1); a rotating shaft (208) is fixedly mounted on the output end of the motor (209); a rotating plate (206) is fixedly sleeved on the outer wall of the upper end of the rotating shaft (208); three arc-shaped grooves (207) are formed through the top surface of the rotating plate (206); the inner walls of the three arc-shaped grooves (207) are respectively slidably connected to the outer walls of three connecting columns (205).

5. The nut processing clamping mechanism according to claim 2, characterized in that: The connecting portion comprises fixed boxes (301) respectively fixedly mounted on the top surfaces of the three clamping plates (201), the inner walls of the three fixed boxes (301) are respectively slidably mounted with movable plates (302), and the top surfaces of the three movable plates (302) are respectively penetrated with threaded holes.

6. The nut processing clamping mechanism according to claim 5, characterized in that: The inner walls of the lower ends of the three fixed boxes (301) are rotatably mounted with threaded rods (303) through the first bearing seat, and the upper ends of the three threaded rods (303) are rotatably passed through the inner walls of the upper ends of the three fixed boxes (301) and extend to the top of the fixed boxes (301) through the second bearing seat, and handles (304) are fixedly mounted on the upper ends of the three threaded rods (303), and the outer walls of the three threaded rods (303) are threadedly connected to the inner walls of the three threaded holes.

7. The nut processing clamping mechanism according to claim 6, characterized in that: The pressing part comprises a plurality of connecting rods (305) respectively fixedly mounted on the sides of the three movable plates (302); the sides of the three fixed boxes (301) are respectively provided with a plurality of movable grooves (306); the sides of the plurality of connecting rods (305) are respectively slidably connected to the inner walls of the plurality of movable grooves (306); and three pressing blocks (307) are respectively fixedly mounted on the lower ends of the plurality of connecting rods (305).

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