CN201158007Y

CN201158007Y - Gripping tongs

Info

Publication number: CN201158007Y
Application number: CNU2007201318958U
Authority: CN
Inventors: 顾学华
Original assignee: Mou Yanfeng
Current assignee: Changzhou Beut Machinery Manufacture Co., Ltd.
Priority date: 2007-12-25
Filing date: 2007-12-25
Publication date: 2008-12-03
Anticipated expiration: 2017-12-25

Abstract

The utility model discloses a gad tong used on a machine tool, which comprises a mounting base, a regular jaw, a sliding jaw, a lead rail, a cylinder body, a piston, and a piston rod. The regular jaw is fixedly connected with the lead rail; the sliding jaw forms a sliding fit with the lead rail; the cylinder body is fixedly connected with the lead rail and is positioned on the lower side of the lead rail; a sliding chute hole is arranged on the piston rod; a pin roll passes through the sliding chute hole and a switch port of a first push-pull rod and a second push-pull rod; the other end of the first push-pull rod is hinged with the sliding jaw; the other end of the second push-pull rod is hinged with the regular jaw. The gad tong has the advantages that the operating speed is high, the chucking power is strong, the jaw precision is high, the safety performance is good, the holding time is reduced, and the work efficiency is high.

Description

Flat-nose pliers

Technical field

The utility model relates to a kind of machine tool accessories, in particular for the instrument of lathe holding workpiece.

Background technology

The flat-nose pliers that existing lathe is used is made up of regular jaw, sliding jaw, clamping screw mandrel and pincers seat, this flat-nose pliers is to drive the slip caliper by clamping screw mandrel, make the jaw luffing come holding workpiece, it exists amplitude modulation speed slow, control crank (spanner) is long, operation labour intensity is big, the shortcoming of effort, and in the decreased food scope of design, can not reach required chucking power and require the time, the way that must use boosting-rod or hammering control crank solves the problem of insufficient clamping force, inconvenient operation and have a strong impact on machined speed and the clamping precision.China Patent No. is that 200520076707.7 document discloses pneumatic or the flat-nose pliers that surges, its operating principle is that two-way jaw moves simultaneously, like this can only to blank more accurately part could guarantee its clamping precision, and flat-nose pliers is used for milling process equipment more, milling the processing parts majority is benchmark with the face, brings high efficiency so this structure can not give to mill to process; Also, be unfavorable for increasing cylinder diameter, and do not have step-up system,, greatly reduce security so clamping force is less because pneumatic or liquid cylinder and guide rail in this structure are arranged in parallel; Be the full stroke motion when this structure is moved in addition, increase the clamping time can for so less workpiece, work efficiency is low.

Summary of the invention

The purpose of this utility model is to provide a kind of manipulation speed fast, and chucking power is big, the flat-nose pliers that security performance is good.

In order to achieve the above object, the technical solution of the utility model is: a kind of flat-nose pliers, comprise mount pad, regular jaw, sliding jaw, guide rail, cylinder body, piston and piston rod, regular jaw is fixedlyed connected with guide rail, sliding jaw and guide rail are slidingly matched, cylinder body is fixedlyed connected with guide rail, and be positioned at the guide rail downside, has chute hole on the piston rod, one bearing pin passes the connecting hole of chute hole and first pull bar and second pull bar, the other end and the sliding jaw of first pull bar are hinged, and the other end and the regular jaw of second pull bar are hinged.

After adopting said structure, because cylinder body fixedlys connected with guide rail, and is positioned at the guide rail downside, is substantially between pneumatic like this or liquid cylinder and the guide rail and is arranged vertically, therefore can increase cylinder diameter, shortening stroke, it is fast to have manipulation speed, the characteristics that chucking power is big; Also owing to have chute hole on the piston rod, one bearing pin passes the connecting hole of chute hole and first pull bar and second pull bar, the other end and the sliding jaw of first pull bar are hinged, the other end and the regular jaw of second pull bar are hinged, therefore by the power transmission and the reinforcement of piston rod and first pull bar and second pull bar, have guaranteed that not only manipulation speed is fast, chucking power is big, and have only sliding jaw one lateral movement, and can guarantee to mill the positioning accuracy of processing, give to mill to process and bring high efficiency.

Description of drawings

The embodiment that provides below in conjunction with accompanying drawing is described in further detail the utility model.

Fig. 1 is the perspective view of flat-nose pliers of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the cutaway view of Fig. 2 along the A-A line, also is that pneumatic flat-nose pliers is in the structural representation when stepping up state;

Fig. 4 is the structural representation of pneumatic flat-nose pliers when being in releasing orientation;

Fig. 5 is the cutaway view of Fig. 2 along the B-B line;

Fig. 6 is the connection status partial view of hinge and regular jaw, sliding jaw and piston rod among Fig. 3;

Fig. 7 is the vertical view of Fig. 6.

The specific embodiment

As Fig. 1,2,3,4, shown in 5, a kind of flat-nose pliers of the present utility model, comprise mount pad 9, regular jaw 1, sliding jaw 5, guide rail 6, cylinder body 8, piston 11 and piston rod 10, regular jaw 1 is fixedlyed connected with guide rail 6, sliding jaw 5 is slidingly matched with guide rail 6, cylinder body 8 is fixedlyed connected with guide rail 6, and be positioned at guide rail 6 downsides, has chute hole 10-1 on the piston rod 10, one bearing pin 16 passes the connecting hole of chute hole 10-1 and first pull bar 4 and second pull bar 2, the other end of first pull bar 4 and sliding jaw 5 are hinged, and the other end of second pull bar 2 and regular jaw 1 are hinged.

Chute hole 10-1 can be that mounting hole or slot or other are convenient to the hole of bearing pin 16 move left and right.

Shown in Fig. 1,3,4,5, sliding jaw 5 comprises jaw plate 5-1, jaw seat 5-2 and planker 5-3, wherein jaw plate 5-1 is fixed on the jaw seat 5-2, jaw seat 5-2 and guide rail 6 are slidingly matched, the rail level 6-3 of planker 5-3 and guide rail 6 is slidingly matched, has screw 5-2-1 on the jaw seat 5-2, screw rod 5-4 is housed on the planker 5-3, screw rod 5-4 and planker 5-3 are rotatably assorted, the screw 5-2-1 threaded engagement of screw rod 5-4 and jaw seat 5-2, first pull bar 4 is hinged by bearing pin 15 with the planker 5-3 of sliding jaw 5.Be fixed with gland 5-3-1 on the planker 5-3, gland 5-3-1 covers at the bar neck of screw rod 5-4 and with the bar neck and is slidingly matched.

Shown in Fig. 3,4,6,7, regular jaw 1 comprises jaw plate 1-2, jaw seat 1-1 and pulling block 1-3, and jaw plate 1-2 is all fixedlyed connected with jaw seat 1-1 with pulling block 1-3, and second pull bar 2 is hinged by bearing pin 14 with the pulling block 1-3 of regular jaw 1.Second pull bar 2 also can be hinged with the jaw seat 1-1 of regular jaw 1.

Shown in Fig. 3,4,5, cylinder body 8 is fixedlyed connected with mount pad 9, or makes one with mount pad 9.

Shown in Fig. 3,4, cylinder body 8 has import and export 8-1, and mount pad 9 has another and imports and exports 9-1, and piston 11 is divided into lower chambers 12 and upper chamber 13 with the inner chamber of cylinder body 8, imports and exports 8-1 and communicates with upper chamber 13, and another is imported and exported 9-1 and communicates with lower chambers 12.

Shown in Fig. 1,2,3,4,5, guide rail 6 comprises left rail 6-1 and right rail 6-2, be fixed with left and right pressing plate 5-5,5-6 on the jaw seat 5-2 of sliding jaw 5, left and right pressing plate 5-5,5-6 join with the lower surface cunning of left and right rail 6-1,6-2 respectively, planker 5-3 downside is fixed with block piece 7, and block piece 7 is joined with the bottom surface cunning of left and right rail 6-1,6-2.Certainly, left and right rail 6-1,6-2 also can make monoblock type guide rail or dovetail grooved guide rail or T type slot type guide rail.

Shown in Fig. 1,2,3,4, dust excluding plate 3 is housed on the guide rail 6, dust excluding plate 3 is positioned at piston rod 10, first pull bar 4 and second pull bar, 2 tops.

The utility model can adopt cylinder or hydraulic cylinder.

The moving process of action of the present utility model is as follows: as shown in Figure 3, when flat-nose pliers is done to clamp action, import and export the 9-1 air inlet, gas charges into the lower chambers 12 in the cylinder body, and piston 11 is moved upward, 10 in piston rod moves upward thereupon, drive two

pull bars

4,2 that are connected on the piston rod 10 simultaneously, 4 planker 5-3 that drive sliding jaw 5 of pull bar, planker 5-3 drives jaw seat 5-2 and jaw plate 5-1 by screw rod 5-4, sliding jaw 5 is moved to regular jaw 1, finish clamping action.The big I of jaw is come manual adjustments screw rod 5-4 according to the size of workpiece, and the size of jaw is in the pneumatic stroke effective range.

As shown in Figure 4, when flat-nose pliers is done to unclamp action, import and export the 8-1 air inlet, gas charges into the upper chamber 13 in the cylinder body, and piston 11 is moved downward, 10 in piston rod moves downward thereupon, drive two

pull bars

4,2 be connected on the piston rod on 10 simultaneously, 4 planker 5-3 that drive sliding jaw 5 of pull bar, planker 5-3 drives jaw seat 5-2 and jaw plate 5-1 by screw rod 5-4, sliding jaw 5 is moved to the direction away from regular jaw 1, finish and unclamp action.

Claims

1, a kind of flat-nose pliers, comprise mount pad (9), regular jaw (1), sliding jaw (5), guide rail (6), cylinder body (8), piston (11) and piston rod (10), regular jaw (1) is fixedlyed connected with guide rail (6), and sliding jaw (5) is slidingly matched with guide rail (6), it is characterized in that:

A, cylinder body (8) are fixedlyed connected with guide rail (6), and are positioned at guide rail (6) downside,

Have chute hole (10-1) on b, the piston rod (10), a bearing pin (16) passes the connecting hole of chute hole (10-1) and first pull bar (4) and second pull bar (2),

The other end of c, first pull bar (4) and sliding jaw (5) are hinged, and the other end of second pull bar (2) and regular jaw (1) are hinged.

2, flat-nose pliers according to claim 1, it is characterized in that: sliding jaw (5) comprises jaw plate (5-1), jaw seat (5-2) and planker (5-3), wherein jaw plate (5-1) is fixed on the jaw seat (5-2), jaw seat (5-2) is slidingly matched with guide rail (6), planker (5-3) is slidingly matched with the rail level (6-3) of guide rail (6), has screw (5-2-1) on the jaw seat (5-2), screw rod (5-4) is housed on the planker (5-3), screw rod (5-4) is rotatably assorted with planker (5-3), screw (5-2-1) threaded engagement of screw rod (5-4) and jaw seat (5-2), first pull bar (4) is hinged by bearing pin (15) with the planker (5-3) of sliding jaw (5).

3, flat-nose pliers according to claim 1, it is characterized in that: regular jaw (1) comprises jaw plate (1-2), jaw seat (1-1) and pulling block (1-3), jaw plate (1-2) is all fixedlyed connected with jaw seat (1-1) with pulling block (1-3), and second pull bar (2) is hinged by bearing pin (14) with the pulling block (1-3) of regular jaw (1).

4, according to claim 1 or 2 or 3 described flat-nose pliers, it is characterized in that: cylinder body (8) is fixedlyed connected with mount pad (9) or is made one.

5, flat-nose pliers according to claim 4, it is characterized in that: cylinder body (8) has import and export (8-1), mount pad (9) has another import and export (9-1), piston (11) is divided into lower chambers (12) and upper chamber (13) with the inner chamber of cylinder body (8), import and export (8-1) and communicate with upper chamber (13), another import and export (9-1) communicate with lower chambers (12).

6, flat-nose pliers according to claim 1, it is characterized in that: guide rail (6) comprises left rail (6-1) and right rail (6-2), be fixed with left and right pressing plate (5-5,5-6) on the jaw seat (5-2) of sliding jaw (5), left and right pressing plate (5-5,5-6) is joined with the lower surface cunning of left and right rail (6-1,6-2) respectively, planker (5-3) downside is fixed with block piece (7), and block piece (7) is joined with the bottom surface cunning of left and right rail (6-1,6-2).

7, flat-nose pliers according to claim 1 is characterized in that: dust excluding plate (3) is housed on the guide rail (6), and dust excluding plate (3) is positioned at piston rod (10), first pull bar (4) and second pull bar (2) top.