CN219819385U

CN219819385U - Flat tongs

Info

Publication number: CN219819385U
Application number: CN202223422256.0U
Authority: CN
Inventors: 张锐光; 黄承业; 华万宝; 钟俊东
Original assignee: Zhuhai Longrun Intelligent Manufacturing Technology Co ltd
Current assignee: Zhuhai Longrun Intelligent Manufacturing Technology Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-10-13
Anticipated expiration: 2032-12-21

Abstract

The utility model discloses a flat tongs which relates to the technical field of tool clamps, and comprises a fixed seat, wherein a limit groove is fixedly formed in the upper end part of the fixed seat, a fixed clamp is fixedly arranged on the left side of the limit groove, a movable clamp is arranged at the opposite back end part of the limit groove and the fixed clamp, the movable clamp is movably connected in the limit groove, a supporting plate is fixedly arranged at the lower end part of the movable clamp, a second rack is fixedly arranged at the lower end part of the supporting plate, a first rack is arranged above the second rack, a rotating shaft is arranged between the first rack and the second rack, the rotating shaft is rotationally connected to the fixed seat, a gear is fixedly sleeved in the middle part of the rotating shaft, the gear is meshed with the first rack and the second rack, a guide rod is fixedly arranged on the left side of an inner cavity of the fixed seat, the first rack is movably sleeved on the guide rod, and a reset spring is movably sleeved on the guide rod. The flat tongs are labor-saving, simple in structure, relatively few in component arrangement, effectively reduces the manufacturing cost of the flat tongs, and improves the processing efficiency of the flat tongs.

Description

Flat tongs

Technical Field

The utility model relates to the technical field of tool clamps, in particular to a flat tongs.

Background

The flat tongs are used for clamping and fixing a workpiece to be machined in the machining field, the operation is simple, the convenient clamping is a design key point of the flat tongs, and the prior patent: the CN201820158530.2 automatic flat tongs can automatically clamp through pushing and elastic restoring of two movable clamping blocks and the pneumatic rack, and has the advantages of simple operation, high efficiency and high comprehensive cost performance. However, the structure is complex, the parts are arranged more, and the manufacturing cost of the flat tongs is increased. In view of this, we propose a new flat nose pliers design.

Disclosure of Invention

The utility model aims to provide a flat tongs which solves the problems that the flat tongs in the prior art provided in the background art are complex in structure, more in parts and components are arranged, and the manufacturing cost of the flat tongs is increased.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flat tongs, includes the fixing base, the fixed spacing groove that has seted up of fixing base upper end portion, spacing groove left side fixed mounting has the fixation clamp, the relative back end portion of spacing groove and fixation clamp is equipped with the movable clamp, movable clamp swing joint is in the spacing inslot, tip fixed mounting has the backup pad under the movable clamp, tip fixed mounting has the second rack under the backup pad, second rack top is equipped with first rack, be equipped with the pivot between first rack and the second rack, the pivot rotates to be connected on the fixing base, the fixed gear that has cup jointed in pivot middle part, gear and first rack, second rack all mesh, fixing base inner chamber left side fixed mounting has the guide bar, first rack activity cup joints on the guide bar, reset spring has been cup jointed to the activity on the guide bar.

Preferably, the return spring is arranged between the fixed seat and the first rack.

Preferably, the first rack and the second rack are parallel to each other, and the first rack is disposed above the second rack.

Preferably, the sliding sleeve is movably sleeved on the outer side surface of the rotating shaft, and is movably clamped with the rotating shaft.

Preferably, the sliding sleeve is movably clamped on the fixed seat, and the sliding sleeve is arranged on the outer side of the fixed seat.

Preferably, the guide rod is arranged above the rotating shaft, and the guide rod is mutually perpendicular to the rotating shaft.

Preferably, the gear is collinear with the center of the sliding sleeve, and the gear is arranged at the rear side of the sliding sleeve.

Compared with the prior art, the utility model has the beneficial effects that: according to the flat tongs with high use efficiency, by utilizing the meshing transmission principle of the gear and the rack, the first rack and the second rack can generate relative motion under the action of the rotating shaft, so that the distance between the fixed clamp and the movable clamp is reduced rapidly, and the workpiece is fixed rapidly; at the same time, the return spring is pulled to enable the return spring to store the force; when the workpiece is taken down, through utilizing the elastic reset action of the reset spring, the fixed clamp and the movable clamp are quickly separated, the workpiece is easy to take down, the labor and the trouble are saved, the structure is simple, the parts are relatively fewer, the manufacturing cost of the flat tongs is effectively reduced, and the processing efficiency of the flat tongs is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic view of the connection of the shaft and the sliding sleeve according to the present utility model;

FIG. 4 is a schematic view of a movable clamp according to the present utility model;

FIG. 5 is a schematic cross-sectional view of A-A of the present utility model.

In the figure: 1. a fixing seat; 2. a limit groove; 3. a fixing clamp; 4. a movable clamp; 5. a support plate; 6. a first rack; 7. a guide rod; 8. a return spring; 9. a second rack; 10. a rotating shaft; 11. a gear; 12. a sliding sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-5, the present utility model provides a technical solution: the utility model relates to a pair of flat tongs, which is mainly used for solving the problems of complex structure, more parts and increased manufacturing cost of the flat tongs in the prior art. The specific scheme is as follows: the fixing seat comprises a fixing seat 1, wherein a limiting groove 2 is fixedly formed in the upper end portion of the fixing seat 1, and the limiting groove 2 is communicated with the inside of the fixing seat 1. A fixing clamp 3 is fixedly arranged on the left side of the limiting groove 2, and the fixing clamp 3 is fixedly arranged with the fixing seat 1.

Further, a movable clamp 4 is arranged at the back end part of the limiting groove 2 opposite to the fixed clamp 3, and the movable clamp 4 is movably connected in the limiting groove 2. Wherein, the fixation clamp 3 is equipped with anti-skidding line with the activity clamp 4 opposite face, through the setting of anti-skidding line, can improve the contact friction of fixation clamp 3 and activity clamp 4 and work piece to improve the centre gripping fixed stability of work piece.

Referring to fig. 1, a support plate 5 is fixedly mounted at a lower end portion of the movable clamp 4, a second rack 9 is fixedly mounted at a lower end portion of the support plate 5, a first rack 6 is disposed above the second rack 9, a rotating shaft 10 is disposed between the first rack 6 and the second rack 9, and the rotating shaft 10 is rotatably connected to the fixing seat 1.

Specifically, a sliding sleeve 12 is movably sleeved on the outer side surface of the rotating shaft 10, and the sliding sleeve 12 is movably clamped with the rotating shaft 10. The sliding sleeve 12 is movably clamped on the fixed seat 1, further, a clamping groove is formed in the outer side surface of the sliding sleeve 12 in an annular mode, a protruding block inserted into the clamping groove on the outer side surface of the sliding sleeve 12 is annularly arranged on the fixed seat 1, and after the sliding sleeve 12 is limited, the sliding sleeve 12 can only axially move along the axis of the rotating shaft 10 and cannot rotate along the rotating shaft 10.

Further, the sliding sleeve 12 is arranged at the outer side of the fixed seat 1, and a flexible sleeve is glued at the outer side surface of the sliding sleeve 12, wherein the flexible sleeve is a rubber sleeve, and after the sliding sleeve 12 is inserted into a corresponding clamping groove on the fixed seat 1, the clamping stability of the sliding sleeve 12 and the fixed seat 1 can be improved.

Further, a gear 11 is fixedly sleeved in the middle of the rotating shaft 10, the gear 11 is collinear with the center of the sliding sleeve 12, and the gear 11 is arranged at the rear side of the sliding sleeve 12. The gear 11 is meshed with the first rack 6 and the second rack 9, the first rack 6 and the second rack 9 are parallel to each other, and the first rack 6 is arranged above the second rack 9.

Further, a guide rod 7 is fixedly arranged on the left side of the inner cavity of the fixed seat 1, wherein the guide rod 7 is transversely arranged, the first rack 6 is movably sleeved on the guide rod 7, and a reset spring 8 is movably sleeved on the guide rod 7. The return spring 8 is arranged between the fixed seat 1 and the first rack 6. The left end part of the return spring 8 is welded on the fixing seat 1, the right end part of the return spring 8 is fixedly welded on the first rack 6, and the return spring 8 can be stretched through rightward movement of the first rack 6, wherein the return spring 8 is a stretching spring. The guide rod 7 is arranged above the rotating shaft 10, and the guide rod 7 is mutually perpendicular to the rotating shaft 10.

Specifically, after the driving force is provided for the rotating shaft 10, the rotating shaft 10 rotates, so that a gear 11 fixedly mounted on the rotating shaft 10 can be driven to rotate, the first rack 6 and the second rack 9 move oppositely through the meshing action of the gear 11 and the first rack 6 and the second rack 9, the movable clamp 4 can be driven to be close to the fixed clamp 3 through the leftward movement of the second rack 9 in the rotating process of the gear 11, and the clamping and fixing effects on workpieces can be achieved through the reduction of the distance between the fixed clamp 3 and the movable clamp 4; when the second rack 9 moves leftwards to enable the movable clamp 4 to be close to the fixed clamp 3, at the moment, the first rack 6 moves rightwards and stretches the reset spring 8, and the stable fixation of a workpiece can be completed by limiting the rotation of the rotating shaft 10; and when making the interval increase of fixation clamp 3 and fly grip 4, break away from promptly to the fixed of work piece, at this moment, pivot 10 breaks away from restriction effort, reset spring 8 elasticity resets, can make first rack 6 move left, through the meshing effect of gear 11 and first rack 6, second rack 9 moves right, and then drives fly grip 4 and keep away from fixation clamp 3, through utilizing reset spring 8 elasticity reset effort, can further improve flat tongs's availability factor.

In the flat tongs with high use efficiency, in an initial state, the first rack 6 and the second rack 9 are respectively arranged on the left side and the right side of the inner cavity of the fixed seat 1 under the elastic reset action of the reset spring 8, and at the moment, the distance between the fixed clamp 4 and the movable clamp 3 is the largest, so that the workpiece is easy to place; after the workpiece is placed, the sliding sleeve 12 is separated from the corresponding clamping notch on the fixed seat 1 through the sliding sleeve 12, the rotating shaft 10 is provided with a rotating force, the rotating shaft 10 can drive the gear 11 to rotate, the first rack 6 and the second rack 9 move oppositely through the meshing action of the gear 11 and the first rack 6 and the second rack 9, the movable clamp 4 can be driven to be close to the fixed clamp 3 through the leftward movement of the second rack 9 in the rotating process of the gear 11, the distance between the fixed clamp 3 and the movable clamp 4 is reduced, and the rotating shaft 10 can be limited by clamping the sliding sleeve 12 into the corresponding clamping notch on the fixed seat 1, so that the clamping and fixing effects on the workpiece can be achieved; and when making the interval increase of fixation clamp 3 and fly grip 4, break away from promptly to the fixed of work piece, at this moment, pivot 10 breaks away from restriction effort, reset spring 8 elasticity resets, can make first rack 6 move left, through the meshing effect of gear 11 and first rack 6, second rack 9 moves right, and then drives fly grip 4 and keep away from fixation clamp 3, through utilizing reset spring 8 elasticity reset effort, can further improve flat tongs's availability factor.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flat tongs, includes fixing base (1), its characterized in that: the utility model discloses a fixing base, including fixing base (1) and fixing base, fixing base (1) upper end fixed has offered spacing groove (2), spacing groove (2) left side fixed mounting has fixation clamp (3), spacing groove (2) are equipped with movable clamp (4) with the opposite back end of fixation clamp (3), movable clamp (4) swing joint is in spacing groove (2), tip fixed mounting has backup pad (5) under movable clamp (4), tip fixed mounting has second rack (9) under backup pad (5), second rack (9) top is equipped with first rack (6), be equipped with pivot (10) between first rack (6) and second rack (9), pivot (10) swivelling joint is on fixing base (1), gear (11) have been cup jointed in the middle part of pivot (10), gear (11) all mesh with first rack (6), second rack (9), fixing base (1) inner chamber left side fixed mounting has guide bar (7), first rack (6) activity cup joints on guide bar (7), reset spring (8) have been cup jointed to the activity on guide bar (7).

2. A flat tongs as claimed in claim 1 wherein: the return spring (8) is arranged between the fixed seat (1) and the first rack (6).

3. A flat tongs as claimed in claim 1 wherein: the first rack (6) and the second rack (9) are parallel to each other, and the first rack (6) is arranged above the second rack (9).

4. A flat tongs as claimed in claim 1 wherein: the outer side surface of the rotating shaft (10) is movably sleeved with a sliding sleeve (12), and the sliding sleeve (12) is movably clamped with the rotating shaft (10).

5. A flat nose pliers as defined in claim 4 wherein: the sliding sleeve (12) is movably clamped on the fixed seat (1), and the sliding sleeve (12) is arranged on the outer side of the fixed seat (1).

6. A flat tongs as claimed in claim 1 wherein: the guide rod (7) is arranged above the rotating shaft (10), and the guide rod (7) is perpendicular to the rotating shaft (10).

7. A flat nose pliers as defined in claim 5 wherein: the gear (11) is collinear with the center of the sliding sleeve (12), and the gear (11) is arranged at the rear side of the sliding sleeve (12).