CN214186829U

CN214186829U - Clamp convenient for clamping arc workpiece

Info

Publication number: CN214186829U
Application number: CN202021644299.1U
Authority: CN
Inventors: 蒋大成
Original assignee: Wuxi Weiteweijia Precision Machinery Co ltd
Current assignee: Wuxi Weiteweijia Precision Machinery Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-09-14
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a fixture convenient for clamping arc workpieces, which relates to the technical field of manufacturing tools, and in particular relates to a fixture convenient for clamping arc workpieces, which comprises a base and a rocker, wherein the base is of a cavity structure and is sequentially divided into a first cavity and a second cavity by a partition plate, the upper end of the base is symmetrically provided with two arc limiting plates, the lower end of one side of each arc limiting plate is symmetrically provided with an L-shaped sliding plate, the L-shaped sliding plates on two sides penetrate through the upper end of the base and are symmetrically arranged in the second cavity, the upper end of the base is provided with a circular positioning block, the joint of the circular positioning block and the base is symmetrically provided with two strip-shaped grooves along a central axis, the fixture realizes the clamping of workpieces with different specifications by adjusting the rocker and the position of the limiting plates and by the relative motion between a movable clamping piece and the limiting plates, the open two sides enable the shapes and the sizes of the clamped workpieces to have great adaptability and the wide application range, meanwhile, the device does not occupy space, is simple to operate and has lower cost.

Description

Clamp convenient for clamping arc workpiece

Technical Field

The utility model relates to a manufacturing tool technical field specifically is an anchor clamps convenient to centre gripping circular arc work piece.

Background

The fixture is a device for fixing a processing object to a correct position in a mechanical manufacturing process so as to receive construction or detection, also called a fixture, and broadly speaking, any procedure in a process is a device for quickly, conveniently and safely installing a workpiece, which is called a fixture, the fixture generally comprises a positioning element (for determining the correct position of the workpiece in the fixture), a clamping device, a tool setting guide element (for determining the relative position of a tool and the workpiece or guiding the direction of the tool), an indexing device (for enabling the workpiece to complete processing of a plurality of stations in one-time installation, including two types of rotary indexing devices and linear movement indexing devices), a connecting element, a fixture body (fixture base) and the like, wherein in a state of processing an arc-shaped workpiece, due to inconvenient clamping, the processing difficulty is large, and the specification of the fixture in the prior art is particularly large, and often clamping instability leads to processing failure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anchor clamps convenient to centre gripping circular arc work piece to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the device comprises a base and a rocker, wherein the base is of a cavity structure and is sequentially divided into a first cavity and a second cavity through a partition plate, two arc-shaped limiting plates are symmetrically arranged at the upper end of the base, L-shaped sliding plates are symmetrically arranged at the lower end of one side of each arc-shaped limiting plate, the L-shaped sliding plates at the two sides penetrate through the upper end of the base and are symmetrically arranged in the second cavity, a circular positioning block is arranged at the upper end of the base, two strip-shaped grooves are symmetrically arranged at the joint of the circular positioning block and the base along a central shaft, U-shaped clamping plates are symmetrically inserted in the two strip-shaped grooves, the upper ends of the U-shaped clamping plates are arranged in the circular positioning block, the lower ends of the circular positioning blocks are arranged in the first cavity, a spring is arranged between the lower ends of the circular positioning blocks and the partition plate, a first spiral rod and a second spiral rod are respectively arranged between the two L-shaped sliding plates and the two U-shaped clamping plates, and the two sides of the first spiral rod and the second spiral rod are respectively sleeved and fixed at the two sides of the base through bearings, the first screw rod and the second screw rod are both provided with square slots at the same side, and the L-shaped sliding plate, the two U-shaped clamping plates and the bearing at one side of each square slot are both provided with a jacking block, and the jacking blocks are respectively sleeved on the first screw rod and the second screw rod through screw nuts.

Preferably, logical groove has been seted up to the upside symmetry of second cavity, and the logical inslot is arranged in to L shape slide, four spouts have been seted up to the upper end symmetry of base, and the both sides lower extreme of two arc limiting plates all is equipped with the slider, and the slider is arranged in the spout.

Preferably, the opposite sides of the L-shaped sliding plate and the U-shaped clamping plate are both provided with inclined planes, the opposite sides of the screw nuts of the two supporting blocks are symmetrically provided with two inclined planes, and the two inclined planes of the two supporting blocks are respectively contacted with the inclined planes of the L-shaped sliding plate and the U-shaped clamping plate.

Preferably, a square plug is arranged at one end of the rocker and is arranged in the square slot, a placing groove is formed in one side of the upper end of the base, and the shape and the size of the placing groove are consistent with those of the rocker.

Compared with the prior art, the beneficial effects of the utility model are that: the device adjusts the position of limiting plate and through the relative motion between activity holder and the limiting plate through the rocker, realizes the centre gripping of different specification work pieces, and open both sides make the shape and the size of centre gripping work piece have very big adaptability, and application range is comparatively extensive, and occupation space not simultaneously, easy operation, the cost is lower.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is a schematic view of the rocker connecting structure of the present invention.

In the figure: the device comprises a base 1, a first cavity 2, a second cavity 3, an arc limiting plate 4, an L-shaped sliding plate 5, a circular positioning block 6, a U-shaped clamping plate 7, a spring 8, a first spiral rod 9, a second spiral rod 10, a square slot 11, a jacking block 12, a rocker 13 and a placing groove 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a clamp for clamping arc workpieces conveniently: comprises a base 1 and a rocker 13, wherein the base 1 is of a cavity structure and is sequentially divided into a first cavity 2 and a second cavity 3 by a partition plate, the upper end of the base 1 is symmetrically provided with two arc-shaped limit plates 4, the lower end of one side of each arc-shaped limit plate 4 is symmetrically provided with an L-shaped sliding plate 5, the L-shaped sliding plates 5 on two sides penetrate through the upper end of the base 1 and are symmetrically arranged in the second cavity, the upper side of the second cavity 3 is symmetrically provided with a through groove, the L-shaped sliding plates 5 are arranged in the through groove, the upper end of the base 1 is symmetrically provided with four sliding grooves, the lower ends of two sides of the two arc-shaped limit plates 4 are respectively provided with a sliding block, the sliding blocks are arranged in the sliding grooves, the upper end of the base 1 is provided with a circular positioning block 6, the joint of the circular positioning block 6 and the base 1 is symmetrically provided with two strip-shaped grooves, U-shaped clamping plates 7 are symmetrically inserted in the two strip-shaped grooves, and the upper ends of the U-shaped clamping plates 7 are arranged in the circular positioning block 6, the lower end of the circular positioning block 6 is arranged in the first cavity 2, a spring 8 is arranged between the lower end of the circular positioning block 6 and the partition plate, a first screw rod 9 and a second screw rod 10 are respectively arranged between the two L-shaped sliding plates 5 and the two U-shaped clamping plates 7, two sides of the first screw rod 9 and the second screw rod 10 are respectively fixed on two sides of the base 1 through bearing sleeve joint, a square slot 11 is respectively arranged on the same side of the first screw rod 9 and the second screw rod 10, a jacking block 12 is respectively arranged between the L-shaped sliding plates 5 and the two U-shaped clamping plates 7 and a bearing on one side of the square slot 11, the two jacking blocks 12 are respectively sleeved on the first screw rod 9 and the second screw rod 10 through screw nuts, inclined surfaces are respectively arranged on one opposite sides of the L-shaped sliding plates 5 and the U-shaped clamping plates 7, two inclined surfaces are symmetrically arranged on one opposite sides of the screw nuts of the two jacking blocks 12, and two inclined planes of the two jacking blocks 12 are respectively contacted with the inclined planes of the L-shaped sliding plate 5 and the U-shaped clamping plate 7, one end of the rocker 13 is provided with a square plug which is arranged in the square slot 11, one side of the upper end of the base 1 is provided with a placing groove 14, and the shape and the size of the placing groove 14 are consistent with those of the rocker 13.

The working principle is as follows: when an arc-shaped workpiece needs to be clamped, the rocker 13 is taken out of the placing groove 14, an elastic clamping block is arranged in the placing groove 14, the rocker 13 cannot fall off at ordinary times, a square plug of the rocker 13 is inserted into the square slot 11 of the first spiral rod 9 to rotate, then the jacking block 12 moves towards the other side of the first spiral rod 9 to drive the L-shaped sliding plates 5 at two sides to move towards two sides along the through slots at two sides, so that the sliding blocks at two sides of the arc-shaped limiting plate 4 start to move along the sliding slots, when the required position is reached, the rocker 13 is taken out and a workpiece is placed, then the rocker 13 is inserted into the square slot 11 of the second spiral rod 10, two U-shaped clamping plates 7 are driven to move towards two sides along the strip-shaped slots in a similar manner, the upper end of the U-shaped clamping plate 7 is an arc-shaped plate, irregular workpieces can be better clamped, and meanwhile, an open area between the arc-shaped limiting plates at two sides can be effectively clamped, after the processing is finished, the rocker 13 rotates reversely around the bearing, the jacking block 12 returns to the original position from the second spiral rod 10, the U-shaped clamping plate 7 rebounds to the original position under the action of the elastic force of the spring 8, the rocker 13 is buckled into the placing groove 14, the arc-shaped limiting plate 4 and the U-shaped clamping plate 7 are adjusted according to the requirements of the user for the next use, and the arc-shaped limiting plate 4 and the U-shaped clamping plate 7 are adjusted in the same manner.

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

Claims

1. The utility model provides an anchor clamps convenient to centre gripping circular arc work piece, includes base (1) and rocker (13), its characterized in that: the base (1) is of a cavity structure and is sequentially divided into a first cavity (2) and a second cavity (3) through partition plates, two arc limiting plates (4) are symmetrically arranged at the upper end of the base (1), L-shaped sliding plates (5) are symmetrically arranged at the lower end of one side of each arc limiting plate (4), the L-shaped sliding plates (5) at two sides penetrate through the upper end of the base (1) and are symmetrically arranged in the second cavity, a circular positioning block (6) is arranged at the upper end of the base (1), two strip-shaped grooves are symmetrically arranged at the joint of the circular positioning block (6) and the base (1) along a central shaft, U-shaped clamping plates (7) are symmetrically inserted in the two strip-shaped grooves, the upper ends of the U-shaped clamping plates (7) are arranged in the circular positioning block (6), the lower ends of the circular positioning blocks (6) are arranged in the first cavity (2), and springs (8) are arranged between the lower ends of the circular positioning blocks (6) and the partition plates, the middle of two L shape slides (5) and two U-shaped splint (7) is equipped with first hob (9) and second hob (10) respectively, and first hob (9) and second hob (10) both sides are cup jointed respectively through the bearing and are fixed in base (1) both sides, first hob (9) and second hob (10) all are equipped with square slot (11) with one side, and all are equipped with between L shape slide (5) and two U-shaped splint (7) and square slot (11) one side bearing and hold piece (12), two it cup joints respectively on first hob (9) and second hob (10) to hold piece (12) through the screw nut.

2. The clamp for clamping the arc-shaped workpiece as claimed in claim 1, wherein: logical groove has been seted up to the upside symmetry of second cavity (3), and L shape slide (5) arrange logical inslot in, four spouts have been seted up to the upper end symmetry of base (1), and the both sides lower extreme of two arc limiting plates (4) all is equipped with the slider, and the slider is arranged in the spout.

3. The clamp for clamping the arc-shaped workpiece as claimed in claim 1, wherein: the opposite sides of the L-shaped sliding plate (5) and the U-shaped clamping plate (7) are respectively provided with an inclined surface, one opposite side of the spiral nuts of the two jacking blocks (12) is symmetrically provided with two inclined surfaces, and the two inclined surfaces of the two jacking blocks (12) are respectively contacted with the inclined surfaces of the L-shaped sliding plate (5) and the U-shaped clamping plate (7).

4. The clamp for clamping the arc-shaped workpiece as claimed in claim 1, wherein: one end of the rocker (13) is provided with a square plug, the square plug is arranged in the square slot (11), one side of the upper end of the base (1) is provided with a placing groove (14), and the shape and size of the placing groove (14) are consistent with those of the rocker (13).