CN224042708U - A locking clamp for wire EDM dies - Google Patents

Abstract

This utility model discloses a locking fixture for a wire EDM die, including an anchoring base. An inner shaft block is fixed to the back of the anchoring base. Multiple limiting members are provided on the outer wall of the inner shaft block, and multiple ball bearings roll against the outer wall of the inner shaft block. An outer shaft ring is fixed to one end of each limiting member. Multiple grooves for accommodating the limiting members are formed on the inner wall of the outer shaft ring. A connecting member is fixed to the back of the outer shaft ring. Clamping members are slidably connected to both sides of the back of the connecting member. A second screw is provided inside the bottom end of each clamping member. The fixture offers multiple functions: it provides various clamping methods for workpieces of different sizes. By utilizing the cooperation of the first screw and the extrusion member, small workpieces can be clamped flexibly and accurately. By connecting the two clamping members in series with the second screw, large workpieces can be stably clamped. When encountering large workpieces, the layout of the fixing base can be changed by rotating the connecting member.

Description

Locking clamp of linear cutting die

Technical Field

The utility model relates to the technical field of wire cutting, in particular to a locking clamp of a wire cutting die.

Background

In modern manufacturing industry, wire cutting processing is widely applied to various fields such as die manufacturing and electronic component processing as a high-precision processing technology, and in the processing process, the processing quality and the production efficiency are directly affected by the performance of the clamp.

The existing linear cutting die clamp has the obvious defect in stability, the fixing mode of part of the clamp is not stable enough, in the machining process, the clamp is easily affected by vibration and impact force generated during cutting, the clamp is displaced or rocked, the machining precision is reduced, the machining process is possibly interrupted, the clamp and the workpiece position are required to be debugged again, and the production progress is seriously affected.

The operation convenience is also a great difficulty, the operation of the traditional clamp is often complex, and a worker needs to carry out complicated adjustment steps by means of various tools when clamping workpieces. This not only requires the workman to possess higher professional skill, consumes a large amount of time moreover, has increased the human cost, has reduced production efficiency.

In addition, the existing clamp is poor in suitability for different workpieces, the existing clamp can only clamp workpieces with specific sizes and shapes, and when the workpieces with large size changes or special shapes are encountered, the clamp needs to be replaced frequently, so that the clamp purchasing cost of enterprises is increased, a large amount of inventory space is occupied, and meanwhile, the production efficiency is low due to frequent replacement of the clamp.

Disclosure of utility model

The utility model aims to provide a locking clamp of a linear cutting die, which solves the problems in the prior art.

The technical scheme includes that the novel bearing comprises an anchoring base, an inner shaft block is fixed on the back of the anchoring base, a plurality of limiting pieces are arranged on the outer wall of the inner shaft block, a plurality of balls are in rolling fit with the outer wall of the inner shaft block, an outer shaft ring is fixed at one end of the limiting pieces, a plurality of grooves for accommodating the limiting pieces are formed in the inner wall of the outer shaft ring, connecting pieces are fixed on the back of the outer shaft ring, clamping pieces are connected to the left side and the right side of the back of the connecting pieces in a sliding mode, and a second screw rod is arranged inside the bottom end of each clamping piece.

Preferably, the clamping piece comprises a fixing seat, the fixing seat is slidably connected to the back of the connecting piece, a vertical threaded hole is formed in the bottom end of the fixing seat in a hollow mode, an extrusion piece is slidably connected to one side wall surface of the top end of the fixing seat, a vertical threaded hole is formed in the interior of the extrusion piece in a hollow mode, and a first screw rod is connected to the interior of the extrusion piece in a threaded mode.

Preferably, the limiting piece comprises an elastic element, the elastic element is fixed in a groove on the inner wall of the outer collar, one end of the elastic element is fixed with a limiting column, and the outer wall of the inner shaft block is provided with a plurality of grooves capable of accommodating the limiting column for connecting the limiting column in an inserting manner.

Preferably, the front surface of the fixing seat is fixedly provided with two T-shaped clamping blocks, and the back of the connecting piece is provided with two grooves matched with the T-shaped clamping blocks on the front surface of the fixing seat for the fixing seat to slide.

Preferably, the extrusion device is characterized in that a T-shaped clamping block is fixed at one end of the extrusion piece, and a groove matched with the T-shaped clamping block at one end of the extrusion piece is formed in one side wall surface of the fixing seat for the extrusion piece to slide.

Preferably, the screw rod is characterized in that the first screw rod is in threaded connection with the threaded hole of the extrusion piece through the fixing seat and is in threaded connection with the nut at the bottom end of the first screw rod.

Preferably, the bottom end of the fixing seat is provided with a transverse threaded hole, and the second screw rod is in threaded connection with the inside of the fixing seat through the transverse threaded hole

Compared with the prior art, the utility model has the beneficial effects that:

1. the operation convenience is improved, whether the initial anchoring base is installed, or the rotation operation of the first screw and the second screw is carried out later, and the rotation adjustment of the outer shaft ring and the connecting piece is carried out, so that the whole flow is extremely simple, convenient and visual. The workers do not need to use complex tools or master high-depth technology, and can rapidly complete the installation and debugging of the clamp and the clamping and positioning of the workpiece by means of simple hand operation, so that the preparation time is greatly shortened, the operation difficulty is reduced, the production delay and waste product caused by misoperation are effectively reduced, and the production efficiency and economic benefit are remarkably improved.

2. The clamp has multiple clamping modes aiming at workpieces with different sizes. The first screw rod is matched with the extrusion piece, so that the small workpiece can be flexibly and accurately clamped, and the second screw rod is connected with the two clamping pieces in series, so that the large workpiece can be stably clamped. When encountering oversized workpiece, the rotary connecting piece changes the layout of the fixing seat, so that the fixture can be easily handled, in addition, the fixture can be rapidly switched between horizontal and vertical processing modes, one set of fixture meets various processing requirements, and the purchasing cost of enterprises to different fixtures is reduced.

And 3, enhancing the clamping force, namely, the two clamping pieces work cooperatively, and compared with a single clamping piece, the clamping force can be more balanced and strong for the workpiece, and in the processing process, the workpiece is ensured to always keep a stable state, and displacement, deformation or shaking caused by uneven stress is effectively avoided, so that the processing precision is greatly improved, and the rejection rate is reduced. Meanwhile, due to the design of the balls, the friction force during rotation of the outer shaft ring is effectively reduced, so that the operation is easier and more labor-saving, the energy consumption is reduced, and the service life of the clamp is prolonged.

Drawings

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

FIG. 2 is a side cross-sectional structural detail of the unitary structure of FIG. 1;

FIG. 3 is a schematic top view of the overall structure of FIG. 1;

FIG. 4 is a front cross-sectional structural detail of the stop member of FIG. 1;

fig. 5 is a schematic diagram of the overall structure of fig. 1 in a rear view.

The reference numerals indicate that 1, an anchoring base, 2, an inner shaft block, 3, a limit post, 4, an elastic element, 5, a ball, 6, an outer shaft ring, 7, a connecting piece, 8, a fixing seat, 9, an extrusion piece, 10, a first screw, 11 and a second screw.

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.

Referring to fig. 1-4, the utility model provides a locking clamp technical scheme of a wire cutting die, which comprises an anchoring base 1, wherein the anchoring base 1 is a basic component of the whole locking clamp, can provide stable support and installation foundation for the whole clamp, is firmly fixed at a designated position through bolts, and ensures that the clamp cannot displace in the using process, thereby ensuring the accuracy and safety of subsequent operation, an inner shaft block 2 is fixed on the back of the anchoring base 1, a plurality of grooves are formed in the outer wall of the inner shaft block 2 and can accommodate limit posts 3, and the movement and limitation of the limit posts 3 in the grooves are helpful for controlling the movement range and direction of an outer collar 6.

The outer wall of the inner shaft block 2 is provided with a plurality of limiting parts, each limiting part comprises an elastic element 4, the elastic element 4 is in a normal state in an initial state, the limiting column 3 is pushed to be inserted into a groove of the inner shaft block 2, and the relative position between the inner shaft and the outer shaft is initially limited. When the outer shaft collar 6 rotates or moves axially relative to the inner shaft block 2, the limiting column 3 receives acting force from the inner shaft block 2, the elastic element 4 is compressed, the limiting column 3 can move out of one groove of the inner shaft block 2 and enter the other groove, or one end of the elastic element 4 moving axially in a telescopic mode is fixed with the limiting column 3 within a certain range, the limiting column 3 extends forwards due to the thrust of the elastic element 4, when the outer shaft collar 6 drives the limiting column 3 to rotate to a specified position, the limiting column 6 is clamped into the groove of the inner shaft block 2 due to the thrust to achieve clamping, the outer wall of the inner shaft block 2 is provided with a plurality of grooves which can accommodate the limiting column 3 for the limiting column 3 to be spliced and connected, the limiting piece can provide limiting to fix the whole clamp at a specified angle when rotating to the specified position, the outer wall of the inner shaft block 2 is in a rolling fit with a plurality of balls 5, the effect of the balls 5 is to reduce friction force when the outer shaft collar 6 rotates relative to the inner shaft block 2, the outer shaft collar 6 can rotate smoothly, the flexibility and the operability can also be supported by the outer shaft collar 6.

One end of the limiting piece is fixed with an outer shaft ring 6, the outer shaft ring 6 is connected with the inner shaft block 2 in an inserting mode through the limiting piece of the inner wall, the outer shaft ring 6 is fixedly connected with the connecting piece 7, so that the outer shaft ring 6 can rotate and be fixed to a designated angle due to the inner structure of the outer shaft ring 6 when the connecting piece 7 rotates, a plurality of grooves for accommodating the limiting piece are formed in the inner wall of the outer shaft ring 6, the limiting piece is driven to rotate simultaneously when the outer shaft ring 6 rotates, the corresponding grooves are rotated to pop out the filling grooves to fix the rotating angle, the back of the outer shaft ring 6 is fixedly provided with the connecting piece 7, and the connecting piece 7 plays a role in providing fixing and sliding for the clamping piece.

The connecting part of the fixing seat (8) and the connecting piece (7) is provided with a sliding groove, the inside of the sliding groove is connected with a T-shaped sliding block in a sliding way, the T-shaped sliding block is fixedly connected with the fixing seat (8) to enable the fixing seat (8) to slide, the connecting part of the extrusion piece (9) and the fixing seat (8) is provided with a sliding groove, the inside of the sliding groove is connected with a T-shaped sliding block in a sliding way, the T-shaped sliding block is fixedly connected with the extrusion piece (9) to enable the extrusion piece (9) to slide, the left side and the right side of the back of the connecting piece 7 are both connected with clamping pieces in a sliding way, the clamping piece includes fixing base 8, and the front surface mounting of fixing base 8 has two "T" type fixture blocks, and "T" type fixture block can avoid fixing base 8 to control or back-and-forth displacement, and two with fixing base 8 front surface "T" type fixture block assorted recess supplies fixing base 8 to slide in the back of connecting piece 7, fixing base 8 sliding connection at connecting piece 7's back, fixing base 8 can carry out the centre gripping with extrusion 9 cooperation, and fixing base 8 bottom cavity forms vertical screw hole.

The extrusion 9 is slidingly connected to a side wall surface at the top end of the fixing seat 8, a T-shaped clamping block is fixed to one end of the extrusion 9, a groove matched with the T-shaped clamping block at one end of the extrusion 9 is formed in the side wall surface of the fixing seat 8 and used for allowing the extrusion 9 to slide, the extrusion 9 mainly plays a role in extrusion clamping of workpieces by matching with the fixing seat 8, a vertical threaded hole is formed in the extrusion 9, a first screw 10 is connected to the extrusion 9 through threads of the threaded holes of the fixing seat 8 and the extrusion 9, nuts are connected to the bottom ends of the first screw 10 through threads of the threaded holes of the fixing seat 8 and the extrusion 9, when the first screw 10 is rotated, the first screw 10 is in threaded connection with the extrusion 9, the rotary motion of the first screw 10 is converted into vertical linear motion of the extrusion 9 to clamp the workpieces, the first screw 10 can enable the extrusion 9 to downwards translate to clamp the workpieces due to the threaded holes of the first screw 10, the clamping piece itself has strong clamping force, the workpieces to be firmly fixed, the clamping pieces to be processed can be clamped by adjusting the clamping pieces, the clamping pieces can provide clamping force for the workpieces of different sizes through adjusting the clamping pieces, and the second screw 11 can clamp the workpieces in series.

The transverse threaded hole is formed in the bottom end of the fixing seat 8, the second screw 11 is in threaded connection with the inside of the fixing seat 8 through the transverse threaded hole, and when the second screw 11 is rotated, the second screw 11 can be pulled into the space between the two fixing seats 8, so that a larger workpiece can be clamped between the two fixing seats 8.

The working principle is that when a workpiece needs to be clamped, the anchoring base 1 is fixed to a designated position through a bolt, the first screw rod 10 is rotated, the first screw rod 10 moves downwards due to threads to drive the extrusion piece 9 to descend, the workpiece is clamped after the extrusion piece 9 is adjusted to a space for clamping the workpiece, two clamping pieces are arranged at the back of the connecting piece 7, so that two workpieces can be machined simultaneously, when the workpiece needs to be vertically machined, the second screw rod 11 is rotated, the second screw rod 11 drives the two fixing seats 8 to oppositely translate due to a transverse threaded hole at the bottom end of the fixing seat 8, so that the two fixing seats 8 can clamp the workpiece, when the workpiece needing to be machined exceeds the clamping size of the extrusion piece 9, the connecting piece 7 is rotated, the connecting piece 7 is fixedly connected with the outer collar 6 to drive the outer collar 6, the outer collar 6 moves in an arc shape, and after the connecting piece is rotated to the designated position, the limiting post 3 is pushed by the elastic element 4 to enable the limiting post 3 to be connected with the inner shaft block 2 in an inserting mode, the two fixing seats 8 are fixed, and the two workpieces can be clamped more greatly, and the workpiece can be clamped more reliably.

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 (7)

1. A locking fixture for a wire cutting die, comprising an anchoring base (1), characterized in that an inner shaft block (2) is fixed to the back of the anchoring base (1), a plurality of balls (5) are rolled and fitted to the outer wall of the inner shaft block (2), an outer shaft ring (6) is fixedly fitted to one end of the balls (5), a groove is provided on the inner wall of the outer shaft ring (6), a limiting member is fixed inside the groove, a connecting member (7) is fixed to the back of the outer shaft ring (6), a clamping member is slidably connected to both sides of the back of the connecting member (7), and a second screw (11) is provided inside the bottom end of the clamping member. 2. A locking fixture for a wire cutting die according to claim 1, characterized in that the clamping member includes a fixed seat (8), the fixed seat (8) is slidably connected to the back of the connecting member (7), the bottom end of the fixed seat (8) is hollow to form a vertical threaded hole, an extrusion member (9) is slidably connected to one side wall of the top end of the fixed seat (8), the extrusion member (9) is hollow to form a vertical threaded hole, a first screw (10) is threadedly connected to the inside of the extrusion member (9), and the first screw (10) is threadedly connected to the internal threaded hole of the fixed seat (8). 3. A locking fixture for a wire cutting mold according to claim 1, characterized in that the limiting member includes an elastic element (4), the elastic element (4) is fixed inside the groove of the inner wall of the outer shaft ring (6), the inner wall of the elastic element (4) is fixed with a limiting post (3), and the outer wall of the inner shaft block (2) is provided with a plurality of grooves matching the limiting post (3) for the limiting post (3) to be inserted and connected. 4. A locking fixture for a wire cutting mold according to claim 2, characterized in that a groove is provided at the connection between the fixed seat (8) and the connecting member (7), and a "T"-shaped slider is slidably connected inside the groove, and the "T"-shaped slider is fixedly connected to the fixed seat (8) for the fixed seat (8) to slide. 5. A locking fixture for a wire cutting die according to claim 2, characterized in that a groove is provided at the connection between the extrusion part (9) and the fixed seat (8), and a "T"-shaped slider is slidably connected inside the groove, and the "T"-shaped slider is fixedly connected to the extrusion part (9) for the extrusion part (9) to slide. 6. A locking fixture for a wire cutting die according to claim 2, characterized in that the first screw (10) is threadedly connected to the threaded hole of the extruder (9) through the fixing seat (8) and the bottom end of the first screw (10) is threadedly connected to a nut. 7. A locking fixture for a wire cutting die according to claim 2, characterized in that a transverse threaded hole is provided at the bottom end of the fixed seat (8), and the second screw (11) is threadedly connected to the inside of the fixed seat (8) through the transverse threaded hole.