CN2518641Y

CN2518641Y - Workpiece fixing device

Info

Publication number: CN2518641Y
Application number: CN 01273169
Authority: CN
Inventors: 玉置英树; 西川广重; 上野幸一
Original assignee: LIKESHI ELECTROMECHANICAL INDUSTRY Co Ltd SUZHOU
Current assignee: LIKESHI ELECTROMECHANICAL INDUSTRY Co Ltd SUZHOU
Priority date: 2001-12-28
Filing date: 2001-12-28
Publication date: 2002-10-30
Anticipated expiration: 2011-12-28

Abstract

The utility model relates to a workpiece fixing device. One end of a chain [40] is fixed on a basal body [3] and the other end is hung on a hook [19] on the chain hanging part [17]; the middle part of the chain [40] is arranged at the upward side of a bearing component [38] on the basal body [3]; a screw rod [30] is spirally connected on the basal body [3]; the front end of the screw rod [30] resists on a detent [22]; one ends of a pair of chains [40] are hung on the basal body [3] and then hung on a bearing roller [10] of a first chain and drawn to a chain wheel [15] and finally stretched to the exterior of the basal body [3]. The screwing operation when fastening the workpiece can be done conveniently and the chain can not extend too long to be polluted.

Description

Work fixing device

Technical field

The utility model relates to a kind of rotation by the screw rod pole member, makes the Work fixing device that workpiece can promptly be fixed, and particularly relates to a kind of Work fixing device mechanically such as band saw that is attached to.

Background technology

In the prior art, in for the band saw that cuts off conduit, tracheae, section bar etc., set up Work fixing device for fixing cut workpiece.Commonly used is that one of device is the chain vice.One end of chain is fixed, and the mid portion of chain is arranged on the workpiece, and the other end of chain draws and hangs on the corresponding fixed part, rotates the screw part that combines with this fixed part, makes the chain tensioning fix workpiece.But unnecessary chain contacts together with ground, and chain has been stained with in dirt, and the operating personnel uses inconvenience.Draw when hanging on the corresponding fixed part at the other end of this chain, because of the cause of handwork, chain is often loose concerning workpiece, and for the tensioning chain, the revolution that the screw rod of tractive fixed part rod rotates is just many, operates more inconvenient.

Summary of the invention

The purpose of this utility model is to provide a kind of easy to operate Work fixing device

The technical solution of the utility model is: a kind of Work fixing device, one end of chain is fixed on the matrix, the other end of chain is affiliated at chain and is drawn on the hook of hanging on the part, the mid portion of chain is arranged on the top of the support unit on the matrix, operating personnel's side at matrix, second is connected freely to rotate with matrix, on this second, ratchet has been installed, both sides at ratchet are equipped with sprocket wheel, chain draws to hang partly and freely is rotationally connected with second, chain draws to hang and partly is provided with hook, be provided with pitman below hook, the central portion of this pitman has been installed ratchet freely to rotate, and this ratchet combines with the tooth portion of ratchet, be connected with an end of spring on the matrix, the other end of spring is connected on the ratchet; Be threaded on matrix and be with the screw rod rod of handle, the front end of this screw rod rod is against on the ratchet; The both sides of described matrix near the through hole that the place, bottom surface offers waist shape, have been passed first at matrix in this through hole, one end of spring draws and hangs on the matrix, the other end draws and hangs on first, on this first, is freely supporting a pair of first chain backing roll by the bearing rotation; One end of a pair of chain hangs on the matrix [3], draws to be suspended on the first chain backing roll [10] again, draws to come on the sprocket wheel [15] again, is stretched to the outside of matrix again.

The utility model is the following advantage of tool compared with prior art:

Tightening operation during fixation workpiece can carry out easily, and chain can not stretch out too much, the not dirty chain of being stained with.

Description of drawings

Accompanying drawing 1 is a main cutaway view of the present utility model;

Accompanying drawing 2 is the cutaway views of bowing of the present utility model; Wherein:

[1], Work fixing device; [3], matrix; [5], through hole; [7], first; [8], spring; [10], the first chain support rollers; [12], second; [13], ratchet; [15], sprocket wheel; [17], chain draws the extension part; [19], hook; [20], pitman; [22], ratchet; [25], bar; [27], spring; [30], screw rod rod; [32], the 3rd; [34], the second chain backing roll; [37], workpiece; [38], support unit; [40], chain; [42], hollow sphere rod

The specific embodiment

The utility model will be further described with reference to the accompanying drawings.Accompanying drawing 1 is the main cutaway view of an embodiment of the present utility model, and accompanying drawing 2 is vertical views of the present utility model.With reference to these figure, both sides at the matrix [3] of the Work fixing device [1] of present embodiment,, passed in this through hole [5] first [7] near the through hole [5] that the place, bottom surface offers waist shape at matrix [3], first [7] can freely move forward and backward at this through hole [5].Simultaneously, an end of spring [8] draws the right side that hangs over matrix [3], and the other end draws the central portion that hangs over first [7], on these first [7], is freely supporting a pair of first chain backing roll [10] by the bearing rotation.

In operating personnel's side (left side of figure) of matrix [3], second [12] run through the both sides of matrix [3], and second [12] freely are connected with matrix [3] revolution by bearing.At the central portion of these second [12] ratchet [13] has been installed,, sprocket wheel [15] has been installed in its two side.Be provided with the chain that projects upwards and draw extension part [17] between the ratchet [13] on second [12] and two sprocket wheels [15], chain draws the bight, top that hangs part [17] to be provided with the hook [19] of triangle.Chain draws extension part [17] freely to be connected with second [12] revolution.Be provided with pitman [20] in the below of two hooks [19], ratchet [22] has freely been installed in central authorities' revolution of this pitman [20], and this ratchet [22] combines with the sawtooth portion of ratchet [13].One end of the spring [27] that is connected with at the central portion that is fixed in the bar [25] on the matrix [3], the other end of spring [27] is connected on the ratchet [22], makes ratchet [22] have the trend of separating with ratchet [13].Be threaded on matrix [3] and be with the screw rod rod [30] of handle, the front end of this screw rod rod [30] is against on the ratchet [22].When depressing, ratchet [13] combines with ratchet [22] ratchet [22] by the screw rod rod [30] of being with handle.

Top position in matrix [3] central authorities is provided with the 3rd [32], on the 3rd [32], freely is provided with a pair of second chain backing roll [34] by the bearing revolution.Chain at the second chain backing roll [34] and hook [19] draws the both sides, matrix upper end that hang between the part [17], the support unit [38] (Fig. 1 overlapping) of a pair of V-shape bulk is installed, support unit [38] but level support the cross section be circle workpiece [37] (Fig. 1).

Inside in matrix [3], a pair of chain [40] pulls back configuration as following.One end of a pair of chain [40] hangs on the both sides of bar [25] of matrix [3] central lower, draw on the first chain backing roll [10] that is suspended on first [7] to right-hand (operating personnel's phase negative side) again, stretch left again, draw and come on second sprocket wheel [15] on [12], one draw to the right on the second chain backing roll [34] that comes on the 3rd [32], (operator party to) is stretched to the outside oblique upper of matrix [3] more left again.

In the other end of this two chain [40], two chains [40] connect to realize synchronization action by hollow sphere rod [42] (only representing in Fig. 2).In accompanying drawing 2, if the other end of chain [40] is drawn the side the operating personnel in large quantities, then draw first [7] (first chain fulcrum roller [10]) of hanging two chains [40] because the effect of spring [8] is tightened up to right-hand, the exposed portions serve of two chains [40] can be pulled into matrix inside.Hollow sphere rod [42] makes chain [40] can not enter matrix inside from the peristome of matrix [3].In accompanying drawing 1, when fixation workpiece [37], this hollow sphere rod [42] draws the chain that hangs over matrix [3] to draw to hang on the outstanding hook [19] on the part [17].

The chain that exposes [40] is after draw in the inside of matrix [3], and workpiece [37] is fixed on the matrix [3] after direction is clamped down, down by chain [40] and V-block shape support unit [38].Loading and unloading action with regard to this workpiece [37] describes simply below.

At first, the operating personnel is set in workpiece [37] on the support unit [38] on matrix [3] top, holding hollow sphere rod [42] then is affiliated at chain it to draw on the hook of hanging on the part [17] [19], as mentioned above, effect by the power drawn in to matrix [3] inside, expose at two outside chain subdivisions formation linearities of matrix [3], at this moment, workpiece [37] is held under the arm with more weak power by two chains [40] and support unit [38].

Secondly, as shown in accompanying drawing 1, the screw rod rod [30] of band handle, its leading section is pushed down the chamfered portion of ratchet [22], makes it to rotate back ratchet [22] and is combined on the tooth of ratchet [13].If pull out chain [40], then the rotation of sprocket wheel [15] (second [12]) is stoped, and simultaneously, the power of pushing down ratchet [22] also acts on the hook [19] by pitman [20], makes chain [40] be able to tensioning.By stoping the rotation of sprocket wheel [15], and chain draws and hangs the drawing effect of part [17] in operating personnel's side, and the workpiece [37] on the support unit [38] directly is fixed reliably.When the screw rod rod [30] of this band handle rotates, two chains [40] are in faint tensioning state, begin to lack to the time compole of the above-mentioned action that makes it to fix from this state, in other words, the screw rod rod [30] of rotating band handle just can be realized the fixing of workpiece slightly.

When removing fixedly, just can on the contrary as the screw rod rod [30] that loosens the band handle slightly.By combination become released state between ratchet [13] and the ratchet [22] this moment, hook [19] (chain draws extension portion 17) is to the lax direction of chain [40] is rotated, the operating personnel can draw extension portion [17] to dismantle chain [40] easily from chain, that is to say, can make workpiece [37] simply be in the on-fixed state.

Claims

1, a kind of Work fixing device, one end of chain [40] is fixed on the matrix [3], the other end of chain [40] is affiliated at chain and is drawn on the hook of hanging on the part [17] [19], the mid portion of chain [40] is arranged on the top of the support unit [38] on the matrix [3], it is characterized in that: in operating personnel's side of matrix [3], second [12] are connected freely to rotate with matrix [3], on these second [12], ratchet [13] has been installed, in the both sides of ratchet [13] sprocket wheel [15] is installed, chain draws extension part [17] and second [12] freely to be rotationally connected, chain draws extension part [17] to be provided with hook [19], be provided with pitman [20] in the below of hook [19], the central portion of this pitman [20] has been installed ratchet [22] freely to rotate, this ratchet [22] combines with the tooth portion of ratchet [13], be connected with an end of spring [27] on the matrix [3], the other end of spring [27] is connected on the ratchet [22]; Be threaded on matrix [3] and be with the screw rod rod [30] of handle, the front end of this screw rod rod [30] is against on the ratchet [22]; The both sides of described matrix [3], the through hole [5] that offers waist shape near bottom surface place at matrix [3], passed in this through hole [5] first [7], one end of spring [8] draws and hangs on the matrix [3], the other end draws and hangs on first [7], on these first [7], freely supporting a pair of first chain backing roll [10] by the bearing rotation; One end of a pair of chain [40] hangs on the matrix [3], draws to be suspended on the first chain backing roll [10] again, draws to come on the sprocket wheel [15] again, is stretched to the outside of matrix [3] again.

2, Work fixing device according to claim 1, it is characterized in that: the top position in matrix [3] central authorities is provided with the 3rd [32], on the 3rd [32], be provided with a pair of second chain backing roll [34] freely to rotate by bearing, chain at the second chain backing roll [34] and hook [19] draws the both sides, matrix upper end that hang between the part [17], the support unit [38] of a pair of V-shape bulk is installed, and described a pair of chain [40] draws to come to draw after sprocket wheel [15] is gone up again and comes on the second chain backing roll [34].

3, Work fixing device according to claim 1, it is characterized in that: in the other end of two chains [40], two chains [40] connect by hollow sphere rod [42], under the state of fixation workpiece [37], hollow sphere rod [42] draws the chain that hangs over matrix [3] to draw to hang on the outstanding hook [19] on the part [17].