CN211387867U - Adjustable electromagnetic clamp for vertical machining center - Google Patents

Abstract

The utility model belongs to the technical field of vertical machining center equipment, and an adjustable electromagnetic clamp for a vertical machining center comprises a mounting plate, an adjustable DC power supply, an electromagnetic drive device and a clamping device, and is characterized in that the mounting plate is An annular bracket is fixed on the upper end surface through a support rod, and an electromagnetic drive device is arranged on the annular inner wall surface of the annular bracket. The electromagnetic drive device includes a certain number of iron cores, and the outer surface of the iron core is wound with coils. The end surface of the board is fixedly provided with a guide sleeve that is coaxial with the annular support, and the middle part of the guide sleeve is connected with a clamping device. Cylinders and tubular objects of different materials and different hardness can adjust the clamping force, so that under the premise of stable clamping, the surface of the parts will not be damaged, and the tubular parts will not be deformed.

Description

An adjustable electromagnetic clamp for vertical machining center

technical field

The utility model belongs to the technical field of vertical machining center equipment, in particular to an adjustable electromagnetic clamp for a vertical machining center.

Background technique

Vertical machining center refers to a machining center with the axis of the main shaft and the machining table vertically arranged. It is mainly suitable for machining complex parts such as plates, discs, molds and small shells. It can perform cutting, drilling, milling and other processing. In the process of machinery manufacturing, it is used to fix the object to be processed so that it occupies the correct position to accept construction or inspection, also known as the fixture. A device that installs parts on the ground can be called a fixture. Such as welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc. However, the fixing effect of the existing clamps is poor, the parts on the clamps are very easy to fall, and some fragile parts are easily damaged, especially for some cylindrical and tubular objects, and the existing clamps are complicated to operate and inconvenient for users to use. The production efficiency of the enterprise is reduced, and the practicability of the fixture for the CNC vertical machining center is reduced.

Previously, a Chinese utility model patent with publication number CN201820390649.2 disclosed a fixture for a CNC vertical machining center. Although this fixture for CNC vertical machining center solves the clamping problem of some cylinders and tubular objects, and the operation is simple, it cannot better control the clamping of cylinders and tubular objects of different materials and different hardnesses. The clamping force will cause damage to the parts.

Utility model content

In view of the deficiencies of the prior art, the purpose of this utility model is to provide an adjustable electromagnetic clamp for vertical machining centers, which can solve the problem of unstable clamping of cylindrical and tubular objects, and can be used for different materials. Cylinders and tubular objects with different hardness can adjust the clamping force to avoid damage and deformation of parts.

In order to solve the above-mentioned purpose, the utility model adopts the following technical scheme:

An adjustable electromagnetic clamp for a vertical machining center, comprising a mounting plate, an adjustable DC power supply, an electromagnetic drive device and a clamping device, characterized in that an annular bracket is fixed on the end surface of the mounting plate through a support rod, so that the An electromagnetic drive device is arranged on the annular inner wall of the annular support, the electromagnetic drive device includes a certain number of iron cores, the outer surface of the iron core is wound with coils, and the end surface of the mounting plate is fixedly arranged with a coaxial center with the annular support. The guide sleeve, the middle part of the guide sleeve is connected with a clamping device, the clamping device includes a magnetic round bar, the magnetic round bar can move on the guide hole in the middle part of the guide sleeve, and the left side of the magnetic round bar is connected There is a spring support block, the spring is located on the periphery of the magnetic round bar, the spring support block is elastically connected with the guide sleeve through the spring, and the right side of the magnetic round bar is fixedly connected with a chuck.

Preferably, the adjustable DC power source includes a wire on the ring support, a coil on the iron core and a DC power source installed on the left side wall of the support rod. One pole of the DC power source is connected to the coil through a wire and is connected back to the DC power source through the coil. the other pole.

Preferably, the iron cores are arranged on the annular inner wall surface of the annular support in the form of an annular array, and the magnetic round bars and the corresponding iron cores are on the same axis.

Preferably, a knob is installed on the DC power supply.

Preferably, a boss is provided where the middle part of the guide sleeve is connected with the spring.

Preferably, a ball is provided at the place where the guide hole is connected with the magnetic round bar.

Preferably, the outer side of the collet is arc-shaped and is provided with a rubber pad.

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

1. The utility model is used for the adjustable electromagnetic clamp of the vertical machining center. The size of the DC power supply can be adjusted, so that the clamping force of the clamp can be adjusted, so that the cylindrical and tubular objects with different hardness and different materials can be adjusted. The clamping force will not damage the surface of the parts, and will not deform the tubular parts under the premise of stable clamping.

2. In the adjustable electromagnetic clamp used in the vertical machining center in the present invention, a ball is provided where the guide hole is connected with the magnetic round bar, and the rotation of the ball can make the magnetic round bar move frictional force in the guide hole. smaller.

3. In this utility, the outer side of the chuck is arc-shaped and is provided with a rubber pad, so that when clamping cylindrical and tubular parts, the force of the parts is more uniform, and due to the buffering effect of the rubber pad, the surface of the parts is also Unnecessary scratches can be avoided.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the present utility model;

Fig. 2 is the A-A structural representation of embodiment Fig. 1 of the present utility model;

Fig. 3 is the enlarged schematic diagram of the structure at place B in Fig. 1 according to the embodiment of the present utility model;

Fig. 4 is the structural schematic diagram when working in the embodiment Fig. 2 of the present utility model;

In the figure: 1. Mounting plate, 2. Adjustable DC power supply, 21, DC power supply, 22, knob, 23, wire, 3, ring bracket, 4. Electromagnetic clamping device, 41, Electromagnetic driving device, 411, Coil, 412, iron core, 42, clamping device, 421, spring support block, 422, magnetic round bar, 423, spring, 424, collet, 425, rubber pad, 5, guide sleeve, 6, ball, 7, convex table, 8, guide hole, 9, support rod, 10, workpiece.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention. The accompanying drawings in the embodiments of the present utility model: the different types of section lines in the figure are not marked according to the national standard, nor are the materials of the components required, but the sectional views of the components in the figure are distinguished.

Please refer to Figure 1-4 for an adjustable electromagnetic clamp for vertical machining centers, which is a device composed of an adjustable DC power supply and an electromagnetic clamping device. When the power is turned on, the electromagnetic clamping device will Under the action of electromagnetic force, the workpiece 10 is clamped by the chuck. Specifically, an adjustable electromagnetic clamp for a vertical machining center includes a mounting plate 1, an adjustable DC power supply 2, an electromagnetic drive device 41 and a clamping device 42, and is characterized in that: the upper end surface of the mounting plate 1 passes through the support rod 9 An annular support 3 is fixedly arranged, and an electromagnetic drive device 41 is arranged on the annular inner wall surface of the annular support 3. The electromagnetic drive device 41 includes a certain number of iron cores 412, and the iron cores 412 are arranged on the annular inner wall surface of the annular support 3 in the form of an annular array. , and the magnetic round bar 422 and the corresponding iron core 412 are on the same axis, the outer surface of the iron core 412 is wound with the coil 411, and the upper end surface of the mounting plate 1 is fixedly provided with a guide sleeve 5 that is coaxial with the annular bracket 3, and the guide sleeve 5. The place where the middle part is connected with the spring 423 is provided with a boss 7, the middle part of the guide sleeve 5 is connected with a clamping device 42, and the adjustable DC power supply 2 includes the wire 23 on the ring support 3, the coil 411 on the iron core 412 and the installation On the DC power supply 21 on the left side wall of the support rod 9, one pole of the DC power supply 21 is connected to the coil 411 through the wire 23 and is connected to the other pole of the DC power supply 21 through the coil 411. By adjusting the size of the DC power supply 21, it can be adjusted The size of the clamping force of the clamp, so that the clamping force can be adjusted according to different materials and different hardness of cylindrical and tubular objects, so that under the premise of stable clamping, the surface of the parts will not be damaged, and the tubular parts will not be deformed. The clamping device 42 includes a magnetic round bar 422. The magnetic round bar 422 can move on the guide hole 8 in the middle of the guide sleeve 5. A ball 6 is provided where the guide hole 8 is connected with the magnetic round bar 422. To make the moving friction force of the magnetic round bar 422 in the guide hole 8 smaller, the left side of the magnetic round bar 422 is connected with a spring support block 421, the spring 423 is located on the periphery of the magnetic round bar 422, and the spring support block 421 passes through the spring 423 and the guide sleeve 5. Elastically connected, the right side of the magnetic round bar 422 is fixedly connected with a collet 424, the outer side of the collet 424 is arc-shaped and is provided with a rubber pad 425, so that when clamping cylindrical and tubular parts, the force of the parts is more uniform, And due to the buffering effect of the rubber pads 45, the surface of the parts can also avoid unnecessary scratches.

Working principle, when using, first adjust the size of the DC current 21 according to the workpiece 10 to be clamped, and then place the workpiece 10 to be processed in the chuck 424 through the guide sleeve 5, and then turn on the power switch, the chuck 424 will be in the electromagnetic field. The workpiece 10 is clamped under the action of the force; after processing, turn off the power switch, the chuck 424 will return to the initial state under the action of the spring 423, and then the processed workpiece 10 can be taken out.

The above are only specific embodiments of the invention, but the protection scope of the invention is not limited to this, and any changes or substitutions that are not conceived of without creative work should be included within the protection scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims (7)

1. The utility model provides an be used for adjustable electromagnetic clamp of vertical machining center, includes mounting panel (1), adjustable DC power supply (2), electromagnetic drive device (41) and clamping device (42), its characterized in that: the upper end face of the mounting plate (1) is fixedly provided with an annular support (3) through a support rod (9), an electromagnetic driving device (41) is arranged on the annular inner wall face of the annular support (3), the electromagnetic driving device (41) comprises a certain number of iron cores (412), coils (411) are wound on the outer surface of the iron cores (412), a guide sleeve (5) which is coaxial with the annular support (3) is fixedly arranged on the upper end face of the mounting plate (1), the middle part of the guide sleeve (5) is connected with a clamping device (42), the clamping device (42) comprises a magnetic round rod (422), the magnetic round rod (422) can move on a guide hole (8) in the middle part of the guide sleeve (5), the left side of the magnetic round rod (422) is connected with a spring support block (421), the spring (423) is located on the periphery of the magnetic round rod (422), the spring support block (421) is elastically connected with the guide sleeve (5) through the spring (423), the left side is connected to the elasticity, magnetism pole (422) right side fixedly connected with chuck (424).

2. The adjustable electromagnetic clamp for the vertical machining center according to claim 1, wherein: the adjustable direct current power supply (2) comprises a lead (23) on the annular support (3), a coil (411) on the iron core (412) and a direct current power supply (21) arranged on the left side wall of the support rod (9), wherein one pole of the direct current power supply (21) is connected with the coil (411) through the lead (23) and is connected back to the other pole of the direct current power supply (21) through the coil (411).

3. The adjustable electromagnetic clamp for the vertical machining center according to claim 2, wherein: the iron cores (412) are arranged on the annular inner wall surface of the annular support (3) in an annular array mode, and the magnetic round rods (422) and the corresponding iron cores (412) are on the same axis.

4. The adjustable electromagnetic clamp for the vertical machining center according to claim 2, wherein: and a knob (22) is arranged on the direct current power supply (21).

5. The adjustable electromagnetic clamp for the vertical machining center according to claim 1, wherein: a boss (7) is arranged at the position where the middle part of the guide sleeve (5) is connected with the spring (423).

6. The adjustable electromagnetic clamp for the vertical machining center according to claim 1, wherein: and a ball (6) is arranged at the position where the guide hole (8) is connected with the magnetic round rod (422).

7. The adjustable electromagnetic clamp for the vertical machining center according to claim 1, wherein: the outer side of the clamping head (424) is arc-shaped and is provided with a rubber cushion block (425).

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