CN211101985U

CN211101985U - Clamping mechanism of electric spark machine tool

Info

Publication number: CN211101985U
Application number: CN201922110946.4U
Authority: CN
Inventors: 刘娟娟
Original assignee: Suzhou Liya Precision Mould Co ltd
Current assignee: Suzhou Liya Precision Mould Co ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-07-28
Anticipated expiration: 2029-11-30

Abstract

The utility model discloses a clamping mechanism of electric spark machine tool, accept board and clamping component including frame, removal bottom plate, slip, frame fixed mounting is on the frame, open one side on the frame has the recess that corresponds with frame lift arm, remove the bottom plate and install the bottom face intermediate position at the recess to through the setting of sliding of vertical drive assembly on the recess bottom wall, the slip is accepted the board and is established on removing the bottom plate to through the setting of sliding of horizontal drive assembly on removing the bottom plate, the slip is accepted board up end symmetry and is run from opposite directions the third spout, and two sets of install the side push pedal on the third spout, install a set of third lead screw in two sets of third spouts, and is two sets of the bottom of side push pedal all stretches into in the third spout with third lead screw threaded connection. The clamping mechanism of the electric spark machine tool can carry out horizontal and longitudinal micro-adjustment on a workpiece clamped on the sliding bearing plate, so that the machining accuracy is more accurate, and the requirements in use are more met.

Description

Clamping mechanism of electric spark machine tool

Technical Field

The utility model belongs to the technical field of the electric spark machine tool, concretely relates to clamping mechanism of electric spark machine tool.

Background

The electric spark machine is also called numerical control electric spark machine, electric spark, spark machine, etc. and is an electric machining equipment. When Lazalinke couples study the phenomenon and reason that switch contact is corroded and damaged by spark discharge, the instantaneous high temperature of electric spark can melt and oxidize local metal to be corroded, so that the invention provides an electric spark machining method.

Most of clamping mechanisms of the existing electric spark machine tool directly adopt two groups of clamping plates to clamp and fix workpieces, after the clamping mechanisms are fixed, when the machining positions of the workpieces need to be adjusted, the workpieces need to be loosened every time, then the workpieces are adjusted to proper positions, the adjusting speed is low, the accuracy is low, most of the existing clamping plates can only be suitable for workpieces in one shape, and the application range is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric spark machine tool's clamping mechanism 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: a clamping mechanism of an electric spark machine tool comprises a machine base, a machine frame, a movable bottom plate, a sliding bearing plate and a clamping assembly, wherein the machine frame is fixedly installed on the machine base, one side of the machine base is provided with a groove corresponding to a lifting arm of the machine frame, the movable bottom plate is installed at the middle position of the bottom end face of the groove and is arranged on the bottom wall of the groove in a sliding mode through a longitudinal transmission assembly, the sliding bearing plate is arranged on the movable bottom plate and is arranged on the movable bottom plate in a sliding mode through a transverse transmission assembly, the upper end face of the sliding bearing plate is symmetrically divided into third sliding grooves, two groups of third sliding grooves are provided with side pushing plates, one group of third lead screws are installed in the two groups of third sliding grooves, the bottoms of the two groups of side pushing plates extend into the third sliding grooves to be in threaded connection with the third lead screws, the third lead screws are opposite in the inner threads of the two groups of third sliding grooves, and, the clamping assembly is arranged on one side face of the two groups of side push plates in opposite directions.

Preferably, the clamping assembly comprises a telescopic rod fixed with the side push plate, a connecting plate fixed with the other end of the telescopic rod and a clamping plate detachably mounted on the connecting plate, and a spring is further sleeved on the movable end of the telescopic rod.

Preferably, a T-shaped groove is formed in one end, back to the telescopic rod, of the connecting plate, an inserting block matched with the T-shaped groove is arranged on one side face of the clamping plate in a protruding mode, and the inserting block is inserted into the T-shaped groove and clamped with the connecting plate.

Preferably, the longitudinal transmission assembly comprises two groups of first lead screws arranged in the base below the groove, sliding strips in threaded connection with the two groups of first lead screws and arranged on two sides of the bottom end of the movable bottom plate, a rocker arranged on the side edge of the base, gears sleeved on the ends of the rocker and the two groups of first lead screws, and a toothed chain connected between the three groups of gears and in meshing transmission.

Preferably, the bottom end face of the groove of the base is further provided with two groups of first sliding grooves, wherein two groups of first lead screws are positioned in the two groups of first sliding grooves, and the two groups of sliding strips are matched in the first sliding grooves.

Preferably, the transverse transmission assembly comprises a second sliding groove formed in the middle of the upper end face of the moving bottom plate, two groups of guide grooves formed in two sides of the upper end face of the moving bottom plate, a second lead screw installed in the second sliding groove and guide rods installed in the guide grooves, one end of the second lead screw penetrates out of the rotating rod of the moving bottom plate through fixedly connected connection, and sliding blocks matched in the second sliding groove and the guide grooves are respectively arranged at the ends of the sliding bearing plates.

The utility model discloses a technological effect and advantage: according to the clamping mechanism of the electric spark machine tool, the movable bottom plate is arranged at the bottom end of the groove and is in sliding connection with the base through the longitudinal transmission assembly, the sliding bearing plate for placing the workpiece is arranged on the movable bottom plate, and the sliding bearing plate is in sliding connection with the movable bottom plate through the transverse transmission assembly, so that the workpiece clamped on the sliding bearing plate can be subjected to transverse and longitudinal micro adjustment, the accuracy in machining is more accurate, and the requirements in use are more met; through the clamping component who is connected with the tight work piece of clamp between two sets of side push pedals, the dismantlement of connecting plate and splint in the clamping component is connected to can change different splint according to the demand that presss from both sides tight work piece, make to add man-hour to the work piece of different shapes, all can press from both sides tightly, with the application scope who improves whole device.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of the movable bottom plate of the present invention;

FIG. 3 is a schematic structural view of the slide bearing plate of the present invention;

FIG. 4 is a schematic view of the connecting plate and the clamping plate of the present invention;

fig. 5 is a connection diagram of the vertical transmission assembly of the present invention.

In the figure: the device comprises a base 1, a machine frame 2, a groove 3, a movable bottom plate 4, a sliding bearing plate 5, a side push plate 6, a motor 7, an expansion rod 8, a spring 9, a connecting plate 10, a clamping plate 11, a rocker 12, a rotating rod 13, a toothed chain 14, a first lead screw 15, a gear 16, a sliding strip 17, a guide groove 18, a guide rod 19, a second sliding groove 20, a second lead screw 21, a third sliding groove 22, a third lead screw 23, a groove 24T and an insert block 25.

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.

The utility model provides a clamping mechanism of an electric spark machine tool as shown in figures 1-5, which comprises a machine base 1, a machine frame 2, a movable bottom plate 4, a sliding bearing plate 5 and a clamping component, wherein the machine frame 2 is fixedly arranged on the machine base 1, one side of the machine base 1 is provided with a groove 3 corresponding to a lifting arm of the machine frame 2, the machine frame 2 and the machine base 1 are both in the prior art, the movable bottom plate 4 is arranged at the middle position of the bottom end surface of the groove 3 and is arranged on the bottom wall of the groove 3 in a sliding way through a longitudinal transmission component, the sliding bearing plate 5 is arranged on the movable bottom plate 4 and is arranged on the movable bottom plate 4 in a sliding way through a transverse transmission component, the upper end surface of the sliding bearing plate 5 is symmetrically provided with a third sliding chute 22, two groups of side push plates 6 are arranged on the third sliding chutes 22, a group of third lead screws 23 are arranged in the two groups of third sliding chutes 22, the bottom ends of the side push plates 6 extend, and the third screw 23 is opposite in the internal thread of the two sets of third chutes 22, and one end of the third screw penetrates through the third chute 22 to be coaxially and fixedly connected with the crankshaft of the motor 7 on one side of the sliding bearing plate 5, so that the motor 7 rotates to drive the third screw 23 to rotate, and further the two sets of side push plates 6 are close to or far away from each other to clamp a workpiece, and the clamping assembly is arranged on one side surface of the two sets of side push plates 6 opposite to each other.

Specifically, clamping assembly includes telescopic link 8 fixed with side push plate 6, with connecting plate 10 and connecting plate 10 on the fixed connecting plate 10 of 8 other ends of telescopic link detachable mounting's splint 11, the activity of telescopic link 8 is served and is still overlapped and is equipped with spring 9 for the clamp fastening is regularly, can extrude spring 9, and makes telescopic link 8 shrink (telescopic link 8 also is prior art here), avoids pressing from both sides the too big work piece damage that causes of tight dynamics.

Specifically, connecting plate 10 is opened to the one end of telescopic link 8 dorsad has T type groove 24, a side protrusion of splint 11 is equipped with the inserted block 25 anastomotic with T type groove 24 to insert T type groove 24 in with connecting plate 10 joint through inserted block 25, thereby can conveniently be to the dismantlement of connecting plate 10 and splint 11, in order to make things convenient for to replace splint 11 (for example the work piece is circular, can change splint 11 into with the tight wainscot of work piece be curved structure).

Specifically, vertical drive assembly is including installing two sets of first lead screw 15 in the frame 1 inside of recess 3 below, with two sets of first lead screw 15 threaded connection and establish the draw runner 17 at 4 bottom both sides of removal bottom plate, install rocker 12 and the cover at the frame 1 side at rocker 12 and the gear 16 of two sets of first lead screw 15 tip and connect three sets of gear 16 between meshing driven toothed chain 14, thereby can rotate through remote pole 12, drive the rotation of two sets of first lead screw 15, and through the cooperation of draw runner 17 with first lead screw 15, drive the removal of removal bottom plate 4.

Specifically, two sets of first sliding grooves are further formed in the bottom end face of the groove 3 of the base 1, wherein two sets of first lead screws 15 are located in the two sets of first sliding grooves, and two sets of slide bars 17 are engaged in the first sliding grooves (here, the first sliding grooves are not shown, and the length and the size of the first sliding grooves are the same as the width of the groove 3, so as to ensure that the movable bottom plate 4 longitudinally moves and adjusts in the groove 3).

Specifically, the transverse transmission assembly comprises a second sliding chute 20 arranged in the middle of the upper end surface of the movable bottom plate 4, two groups of guide grooves 18 arranged on two sides of the upper end surface, a second lead screw 21 arranged in the second sliding chute 20 and a guide rod 19 arranged in the guide grooves 18, one end of the second screw 21 is fixedly connected with a rotating rod 13 which penetrates out of the movable bottom plate 4 (two groups of vertically staggered insertion holes are arranged at the end part of the rotating rod 13, and the rotating rod 13 can be conveniently rotated by inserting a round rod into the insertion holes), the ends of the slide bearing plate 5 are respectively provided with a slide block which is inosculated in the second slide groove 20 and the guide groove 18, wherein the slide block comprises a group of larger and two groups of smaller, wherein, the larger group is matched with the second screw rod and arranged in the middle of the bottom end of the sliding bearing plate 5, and the smaller group is matched with the guide rod 19 to play a role of supporting and guiding and is arranged at two sides of the bottom end of the sliding bearing plate 5.

Specifically, when clamping a workpiece, the clamping mechanism of the electric spark machine tool firstly selects the corresponding clamping plate 11 according to the shape of the workpiece, inserts the clamping plate 11 into the connecting plate 10, and after the clamping plate 11 is combined with the connecting plate 10 into a whole, places the workpiece between the two groups of clamping plates 11, starts the motor 7 to rotate forward to drive the rotation of the third screw 23, enables the two groups of side push rods 6 to approach to push the clamping plates 11 to clamp the workpiece, and stops the rotation of the motor 7 after extruding the spring 9, at the moment, the clamping is stable, then accurately adjusts the position of the workpiece processing, when horizontally and transversely adjusting, a group of round rods (only using the existing metal round rods) are inserted into the insertion holes of the rotating rods 13, then the round rods rotate for 90 degrees and are extracted and then inserted to drive the rotation of the second screw 21, so as to horizontally move the sliding bearing plate 5 on the movable bottom plate 4, and horizontally and longitudinally adjust, the rocker 12 is directly rotated, and the rotation of the rocker 12 drives the rotation of the two groups of first lead screws 15, so as to drive the moving bottom plate 4 to longitudinally move on the groove 3.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an electric spark machine tool's clamping mechanism, includes frame (1), frame (2), removes bottom plate (4), slides and accepts board (5) and clamping component, its characterized in that: frame (2) fixed mounting is on frame (1), open one side on frame (1) has recess (3) that correspond with frame (2) lifing arm, remove bottom plate (4) and install the bottom face intermediate position at recess (3) to through the setting of sliding of vertical drive assembly on recess (3) diapire, the slip is accepted board (5) and is established on removing bottom plate (4), and sets up through horizontal drive assembly sliding on removing bottom plate (4), and the third spout (22) is run from opposite directions to the up end symmetry of slip is accepted board (5), and two sets of install side push pedal (6) on third spout (22), install a set of third lead screw (23) in two sets of third spout (22), and two sets of the bottom of side push pedal (6) all stretches into in third spout (22) with third lead screw (23) threaded connection, just third lead screw (23) are opposite in third spout (22), and one end of the clamping component penetrates through the third sliding chute (22) to be coaxially and fixedly connected with a crankshaft of the motor (7) on one side of the sliding bearing plate (5), and the clamping component is arranged on one side surface of the two groups of side push plates (6) opposite to each other.

2. A clamping mechanism for an electric discharge machine as claimed in claim 1, characterized in that: clamping assembly includes telescopic link (8) fixed with side push pedal (6), with connecting plate (10) and connecting plate (10) go up demountable installation's splint (11) that telescopic link (8) other end is fixed, still cover on the activity of telescopic link (8) is served and is equipped with spring (9).

3. A clamping mechanism for an electric discharge machine as claimed in claim 2, characterized in that: t type groove (24) have been opened to the one end of connecting plate (10) telescopic link (8) dorsad, a side protrusion of splint (11) is equipped with and inserts piece (25) anastomotic with T type groove (24) to insert T type groove (24) in through inserting piece (25) and connecting plate (10) joint.

4. A clamping mechanism for an electric discharge machine as claimed in claim 1, characterized in that: the longitudinal transmission assembly comprises two groups of first lead screws (15) arranged inside the base (1) below the groove (3), sliding strips (17) which are in threaded connection with the two groups of first lead screws (15) and arranged on two sides of the bottom end of the movable bottom plate (4), a rocker (12) arranged on the side edge of the base (1), gears (16) sleeved on the ends of the rocker (12) and the two groups of first lead screws (15) and a toothed chain (14) connected between the three groups of gears (16) for meshing transmission.

5. The clamping mechanism for an electric discharge machine according to claim 4, wherein: two groups of first sliding grooves are formed in the bottom end face of the groove (3) of the machine base (1), two groups of first lead screws (15) are located in the two groups of first sliding grooves, and two groups of sliding strips (17) are matched in the first sliding grooves.

6. A clamping mechanism for an electric discharge machine as claimed in claim 1, characterized in that: the transverse transmission assembly comprises a second sliding groove (20) formed in the middle of the upper end face of the movable bottom plate (4), two groups of guide grooves (18) formed in two sides of the upper end face of the movable bottom plate, a second lead screw (21) installed in the second sliding groove (20) and guide rods (19) installed in the guide grooves (18), one end of the second lead screw (21) penetrates out of a rotating rod (13) of the movable bottom plate (4) through fixedly connected connection, and sliding blocks matched in the second sliding groove (20) and the guide grooves (18) are arranged at the ends of the sliding bearing plate (5) respectively.