CN207953285U - A Worktable Clamping Mechanism of CNC Machining Center - Google Patents

Abstract

The utility model discloses a workbench clamping mechanism of a CNC machining center, which comprises a base, wherein a fixed plate is arranged on the left side of the upper surface of the base, a chute is arranged on the right side of the upper surface of the base, a movable plate is connected in the chute in a sliding manner, a driving device is connected on the right side of the movable plate, and a main clamping device and an auxiliary clamping device are arranged between the movable plate and the fixed plate; main clamping device includes two main clampers of fixed mounting at fixed plate and fly leaf, and main clamper includes solid fixed cylinder, and fixed mounting has two fixed plates in the solid fixed cylinder, runs through on two fixed plates and is provided with a plurality ofly to the movable orifices, wears to be equipped with the clamping bar in the movable orifices, and clamping bar mid-mounting has spacing, is connected with expanding spring between the fixed plate of spacing and solid fixed cylinder bottom one side, the utility model discloses not only can firmly press from both sides the great part of clamp, can also carry out good fixed, simple structure, simple operation to the part of irregular shape simultaneously.

Description

A Worktable Clamping Mechanism of CNC Machining Center

technical field

The utility model relates to the field of clamping mechanisms, in particular to a workbench clamping mechanism of a CNC machining center.

Background technique

CNC lathe is one of the most widely used CNC machine tools at present. It is mainly used for cutting the inner and outer cylindrical surfaces of shaft parts or disk parts, the inner and outer conical surfaces of arbitrary cone angles, the complex rotary inner and outer curved surfaces, cylinders, and conical threads, etc., and can perform grooving, drilling, reaming, and reaming. Holes and borings etc.

The CNC lathe automatically processes the processed parts according to the pre-programmed processing program. We write the processing route, process parameters, tool trajectory, displacement, cutting parameters and auxiliary functions of the parts into a processing program sheet according to the instruction code and program format specified by the CNC machine tool, and then record the contents of the program sheet On the control medium, it is then input into the CNC device of the CNC machine tool to direct the machine tool to process the parts.

Traditional mechanical processing is performed by manual operation of ordinary machine tools. During processing, the mechanical tool is used to cut metal, and the accuracy of the product is measured by eyes with tools such as calipers. Modern industry has already used computer digitally controlled machine tools for operations. CNC machine tools can automatically process any products and parts directly according to the programs programmed in advance by technicians. This is what we call CNC machining. CNC machining is widely used in any field of mechanical processing, and it is the development trend and important and necessary technical means of mold processing.

Before the CNC machining center processes the parts, it needs to fix the parts to be processed well. The parts to be processed are not fixed firmly, and it is easy to shift during the processing, resulting in unqualified product processing. In the prior art, there are various types of worktable clamping mechanisms used in CNC machining centers, and the fixing effect is ideal.

However, the workbench clamping mechanism of the existing CNC machining center has the following defects:

(1) When the worktable clamping mechanism of the CNC machining center in the prior art clamps irregularly shaped parts, it cannot firmly fix the parts, and relative displacement occurs between the parts to be processed and the clamping mechanism , resulting in damage to the surface of the part to be processed;

(2) When the clamping mechanism of the workbench of the CNC machining center in the prior art clamps larger parts to be processed, due to the small area of the clamping surface, the friction between the clamping mechanism and the parts to be processed is reduced, The parts to be processed are not fixed firmly.

Contents of the invention

In order to overcome the deficiencies of the existing technical solutions, the utility model provides a worktable clamping mechanism of a CNC machining center. The utility model can not only firmly clamp larger components, but also perform good clamping on irregularly shaped components. fixed, simple in structure, convenient to operate, and can effectively solve the problems raised by the background technology.

The technical scheme that the utility model solves its technical problem adopts is:

A workbench clamping mechanism of a CNC machining center, comprising a base, a fixed plate is installed on the left side of the upper surface of the base, a chute is provided on the right side of the upper surface of the pedestal, and sliding A movable plate is connected, a driving device is connected to the right side of the movable plate, and a main clamping device and an auxiliary clamping device are installed between the movable plate and the fixed plate;

The main clamping device includes two main clamps fixedly installed on the fixed plate and the movable plate, the main clamp includes a fixed cylinder, and two fixed plates are fixedly installed in the fixed cylinder, and the two There are several pairs of movable holes penetrating through the fixed plate, and a clamping rod is pierced in the movable holes, and a limit bar is installed in the middle of the clamp rod. A telescopic spring is attached.

Further, the auxiliary clamping device includes two support plates, the two support plates are installed on the fixed plate and the movable plate respectively, and two pairs of auxiliary clamps are fixedly installed between the support plates, and the auxiliary clamps The clamping device includes a mounting plate, and the mounting plate is provided with an arc-shaped fixing groove, and a plurality of clamping blocks are arranged in the fixing groove, and a plurality of return springs are connected between the clamping blocks and the inner wall of the fixing groove.

Further, the inner ring of the return spring is provided with a protective telescopic tube, the bottom end of the protective telescopic tube is fixedly connected to the inner wall of the fixing groove, and the top end of the protective telescopic tube is fixedly connected to the clamping block.

Further, a rubber anti-slip layer is provided on the outer surface of the clamping rod.

Further, the driving device includes a fixed seat installed on the right side of the base, and a driving cylinder is connected between the fixed seat and the movable plate.

Compared with the prior art, the beneficial effects of the utility model are:

(1) The main clamping device of the utility model clamps some irregularly shaped parts to be processed and parts to be processed with non-cylindrical structures, which can effectively fix the parts to be processed and prevent the surface of the parts to be processed from being clamped damage caused in the process;

(2) As a supplement to the function of the main clamping device, the auxiliary clamping device of the present utility model can clamp the parts to be processed with a cylindrical structure. Clamping, wide range of applications.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the main clamp of the present invention.

Labels in the figure:

1-base; 2-fixed plate; 3-chute; 4-movable plate; 5-drive device; 6-main clamping device; 7-clamp; 8-auxiliary clamping device; 9-anti-slip telescopic tube ; 10-rubber anti-slip layer;

501-fixed seat; 502-drive cylinder;

701-fixed cylinder; 702-fixed plate; 703-movable hole; 704-clamping rod; 705-limit bar; 706-telescopic spring;

801-support plate; 802-auxiliary clamp;

8021-mounting plate; 8022-fixing slot; 8023-clamping block; 8024-return spring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1 and Figure 2, the utility model provides a workbench clamping mechanism of a CNC machining center, including a base 1, a fixed plate 2 is installed on the left side of the upper surface of the base 1, the base The right side of the upper surface of the seat 1 is provided with a chute 3, and a movable plate 4 is slidably connected in the chute 3, and a driving device 5 is connected to the right side of the movable plate 4, and between the movable plate 4 and the fixed plate 2 A main clamping device 6 and an auxiliary clamping device 8 are installed.

In this embodiment, the main clamping device 6 clamps some irregularly shaped parts to be processed and parts to be processed with non-cylindrical structures, and the auxiliary clamping device 8, as a supplement to the function of the main clamping device 6, can Cylinder structure parts to be processed are clamped, and the cooperation between the two can realize the clamping of regular and irregular shapes to be processed. The driving device 5 drives the movable plate 4 to move to realize the clamping of the parts to be processed.

The main clamping device 6 includes two main clamps 7 fixedly installed on the fixed plate 2 and the movable plate 4, and the main clamp 7 includes a fixed cylinder 701, and the fixed cylinder 701 is fixedly installed with two A fixed plate 702, two fixed plates 702 are provided with several pairs of movable holes 703, the movable holes 703 are pierced with a clamping rod 704, and the outer surface of the clamping rod 704 is provided with a rubber anti-skid layer 10 A limiting bar 705 is installed in the middle of the clamping rod 704 , and a telescopic spring 706 is connected between the limiting bar 705 and the fixing plate 702 at the bottom side of the fixing cylinder 701 .

In this embodiment, the main clamping device 6 clamps some irregularly shaped parts to be processed and parts to be processed with non-cylindrical structures. between the clamps 7, and then the movable plate 4 is pushed to the left, the parts to be processed are clamped between the two main clamps 7, and as the movable plate 4 moves leftward, the parts to be processed and the clamping rod 704 Contact, and press the clamping rod 704 into the bottom of the fixed cylinder 701, the unpressed clamping rod 704 in the fixed cylinder 701 contacts the side of the part to be processed, and the corners of the processing part are restricted by the clamping rod 704 and cannot rotate. Complete the clamping of the part to be processed, and take out the part to be processed after the processing is completed, and the clamping rod 704 returns to its original state under the action of the elastic force of the telescopic spring 706, and can carry out the clamping of the next part to be processed.

The auxiliary clamping device 8 includes two support plates 801, the two support plates 801 are installed on the fixed plate 2 and the movable plate 4 respectively, and two pairs of auxiliary clamps 802 are fixedly installed between the support plates 801 , the auxiliary clamp 802 includes a mounting plate 8021, the mounting plate 8021 is provided with an arc-shaped fixing groove 8022, and a plurality of clamping blocks 8023 are arranged in the fixing groove 8022, and the clamping block 8023 is connected with the fixed The inner wall of the groove 8022 is connected with a plurality of return springs 8024, the inner ring of the return spring 8024 is provided with a protective telescopic tube 9, the bottom end of the protective telescopic tube 9 is fixedly connected with the inner wall of the fixed groove 8022, and the top end of the protective telescopic tube 9 is clamped. Block 8023 is fixedly connected.

In this embodiment, the auxiliary clamping device 8, as a supplement to the function of the main clamping device 6, can clamp the parts to be processed with a cylindrical structure. The parts to be processed in between are gradually clamped. During the process of gradually clamping the parts to be processed, the return spring 8024 is compressed, and the clamping block 8023 is squeezed and depressed into the fixing groove 8022, which increases the contact between the clamping block 8023 and the to-be-processed part. The friction between the processing parts prevents the parts to be processed from sliding. In this embodiment, the protective telescopic tube 9 prevents the deformation of the return spring 8024. The anti-skid telescopic tube 9 includes an inner tube and an outer tube, and the outer tube is slidably sleeved on the on the inner tube.

The driving device 5 includes a fixed base 501 installed on the right side of the base 1 , and a driving cylinder 502 is connected between the fixed base 501 and the movable plate 4 .

In this embodiment, the driving device 5 drives the movable plate 4 to move to realize the clamping of the parts to be processed, and the telescopic movement of the driving cylinder 502 drives the movable plate 4 to move left and right to realize the clamping and unloading of the parts to be processed.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. a kind of working table combined clamp of CNC machining centers, including pedestal（1）, it is characterised in that：The pedestal（1）Upper table Fixed plate is installed on the left of face（2）, the pedestal（1）The right side of upper surface is equipped with sliding slot（3）, the sliding slot（3）Interior sliding It is connected with movable plate（4）, the movable plate（4）Right side is connected with driving device（5）, the movable plate（4）With fixed plate（2）It Between main clamping device is installed（6）And auxiliary clamping device（8）；

The main clamping device（6）Including being fixedly mounted on fixed plate（2）And movable plate（4）Two main binding clasps（7）, institute State main binding clasp（7）Including fixed cylinder（701）, the fixed cylinder（701）There are two fixed plates for interior fixed installation（702）, two The fixed plate（702）On be provided through it is several to movable span（703）, the movable span（703）Inside it is equipped with clamping bar （704）, the clamping bar（704）Middle part is equipped with positive stop strip（705）, the positive stop strip（705）With fixed cylinder（701）Bottom one The fixed plate of side（702）Between be connected with adjustable spring（706）.

2. a kind of working table combined clamp of CNC machining centers according to claim 1, it is characterised in that：The auxiliary Clamping device（8）Including two pieces of support plates（801）, two pieces of support plates（801）It is separately mounted to fixed plate（2）And activity Plate（4）On, the support plate（801）Between be installed with two pairs of auxiliary clamp devices（802）, the auxiliary clamp device（802） Including mounting plate（8021）, the mounting plate（8021）It is equipped with the fixing groove of arc（8022）, the fixing groove（8022）It is interior Equipped with several gripping blocks（8023）, the gripping block（8023）With fixing groove（8022）Inner wall is connected with several resetting springs （8024）.

3. a kind of working table combined clamp of CNC machining centers according to claim 2, it is characterised in that：The reset Spring（8024）Inner ring is equipped with protection telescoping tube（9）, the protection telescoping tube（9）Bottom end and fixing groove（8022）Inner wall, which is fixed, to be connected It connects, the protection telescoping tube（9）Top and gripping block（8023）It is fixedly connected.

4. a kind of working table combined clamp of CNC machining centers according to claim 1, it is characterised in that：The clamping Bar（704）Outer surface is equipped with rubber antiskid layer（10）.

5. a kind of working table combined clamp of CNC machining centers according to claim 1, it is characterised in that：The driving Device（5）Including being mounted on pedestal（1）The fixed seat on right side（501）, the fixed seat（501）With movable plate（4）Between connect There is driving cylinder（502）.