TWI824871B - Barrier protection parts - Google Patents

Abstract

A stopper and protective piece for detachable installation on the spindle of a processing machine. The stopper and protector has a connecting part and a stopper. The connection part is detachably connected to the spindle. The stopper has a A cover body and an elastic layer covering the surface of the cover body. After the processing machine completes processing, the processing tool bar installed on the spindle can be replaced with the stopper protection piece, and the stopper is pushed out by the pushing device. When clamping the workpiece of the device, the elastic layer of the stopper provides a buffering effect to avoid damage to the workpiece.

Description

Barrier protection parts

The present invention relates to an accessory for a processing machine, and in particular to a material blocking guard that can be installed on the main shaft of the processing machine and is used to stop the workpiece pushed out from the clamping device.

Existing processing machines, such as lathes, mainly include a spindle, a processing tool bar installed on the spindle, and a clamping device for clamping the workpiece.

The clamping device has a horizontally arranged central axis and a plurality of clamping jaws arranged radially around the central axis. The clamping jaws can move toward the central axis to clamp the workpiece, and can move away from the central axis. direction to loosen the workpiece.

In order to allow the workpiece to be smoothly taken out of the clamping device, the clamping device will be provided with a pusher, which is disposed along the central axis of the clamping device and can be positioned relative to the central axis along the central axis. The clamping device moves, and when the clamping jaw of the clamping device releases the workpiece, the pusher is used to push the workpiece out; however, when the workpiece is pushed out of the clamping device by the pusher, if the user If there is no connection at the side, and the force of the pusher pushing the workpiece is too large, the workpiece will easily hit the hard surface of the machine table, causing defects in the workpiece.

In view of the above shortcomings, the main purpose of the present invention is to provide a material stopper installed on the main shaft of a processing machine. After the workpiece is processed, the stopper installed on the main shaft of the processing machine can be The work tool bar is replaced with the material blocking guard, which can stop the workpiece when the pushing device pushes the workpiece out of the clamping device.

In order to achieve the above purpose, the invention provides a stopper and protective piece for detachable installation on the spindle of a processing machine. The stopper and protector includes: a connecting part for connecting with the spindle. a detachable connection; and a blocking part that forms one end of the connecting part, the blocking part has a cover body and an elastic layer, the cover body is integrated with the connecting part, and the elastic layer covers On the surface of the cover, the cover includes a top and a surrounding portion. The top has an end surface facing away from the connecting portion. The surrounding portion is arc-shaped and faces away from the connecting portion from the end surface of the top. Extending in the direction, a notch is formed on the concave side of the surrounding portion.

After the workpiece is processed using the processing tool bar installed on the spindle of the processing machine, the processing tool bar installed on the spindle can be replaced with the stopper guard, and the spindle can be moved so that the stopper guard is located on the clamping device. In front, while the stopper is pushed out of the workpiece of the clamping device by the pushing device, the elastic layer of the stopper portion can provide a buffering effect, absorbing the impact force of the workpiece hitting the stopper portion to avoid damage to the workpiece.

10: Processing machine body

11: Machine base

13:Spindle

20: Clamping device

21: base body

23: Clamping piece

30:Pushing device

31:Putter

33:Spring

40:Blocking protection parts

41:Connection part

42: Blocking part

43: Cover body

431:Top

432: Notch

433: Waibu

44: Elastic layer

50:Artifact

60: Acceptance parts

A:Central axis

Figure 1 is a front view of the preferred embodiment of the present invention installed on the spindle of a processing machine.

Figure 2 is a partial enlarged three-dimensional appearance view of the preferred embodiment of the present invention installed on the spindle of a processing machine.

Figure 3 is another partial enlarged three-dimensional appearance view of the preferred embodiment of the present invention installed on the spindle of a processing machine.

Figure 4 is a partial enlarged cross-sectional front view of the preferred embodiment of the present invention installed on the spindle of a processing machine.

Figure 5 is a three-dimensional appearance view of the preferred embodiment of the present invention.

Figure 6 is a cross-sectional side view of a preferred embodiment of the present invention.

FIG. 7 is a cross-sectional view along line A-A of FIG. 6 according to the preferred embodiment of the present invention.

Figure 8 is a schematic diagram of the use of the preferred embodiment of the present invention.

Please refer to Figures 1 to 4. A preferred embodiment of the blocking guard 40 of the present invention is for detachable installation on the spindle 13 of a processing machine. The processing machine mainly includes a processing machine body 10, a clamp holding device 20, and a pushing device 30.

Please refer to FIG. 1 , the processing machine body 10 includes a machine base 11 , and the spindle 13 is movably connected to the machine base 11 . The clamping device 20 is located on one side of the processing machine body 10 .

Please refer to Figures 2 to 4. The clamping device 20 includes a central axis A, a base 21, and a plurality of clamping parts 23. The central axis A extends along a horizontal direction, and the plurality of clamping parts 23 radiate. are arranged in a shape around the central axis A, and are connected to the base 21 in a manner that can move close to and away from the central axis A; the clamping device 20 can rotate around the central axis A, and can drive the workpiece to rotate during processing. .

Please refer to Figures 2 and 4. The pushing device 30 is installed on the base 21 of the clamping device 20 and includes a push rod 31 and a spring 33. The push rod 31 can move relative to the base along the central axis A. The body 21 expands and contracts, and the spring 33 is disposed between the push rod 31 and the base 21 and pushes the push rod 31 away from the base 21 .

Please refer to Figures 2 to 5. The blocking guard 40 is detachably connected to the main shaft 13. The axial direction of the main shaft 13 is perpendicular to the central axis A of the clamping device 20. In this preferred embodiment, the The spindle 13 is arranged upright; the blocking guard 40 includes a connecting part 41 and a blocking part 42. The connecting part 41 is used to connect with the spindle 13. The structure of the connecting part 41 can be combined with the existing machining tool bar and the blocking part 42. The structure of the connecting portion connecting the main shafts 13 is the same, and the structural details will not be described in detail here.

Please refer to FIGS. 4 to 7 . The blocking portion 42 is formed at an end of the connecting portion 41 away from the main shaft 13 . The blocking portion 42 includes a cover 43 and an elastic layer 44 . The cover 43 and the connecting portion 41 shape Integrated, the elastic layer 44 covers the surface of the cover body 43 . The cover body 43 and the connecting part 41 are made of metal material. The elastic layer 44 is an elastomer covering the surface of the cover body 43, such as rubber, silicone, thermoplastic elastomer, etc. In this preferred embodiment, The elastic layer 44 is polyvinyl chloride elastomer.

The cover 43 includes a top 431 and a surrounding portion 433. The top 431 has an end surface facing away from the connecting portion 41. The surrounding portion 433 extends from the end surface of the top 431 in a direction away from the connecting portion 41. The surrounding portion 433 is arc-shaped and curves along the outer edge of the top 431 . A recess 432 is formed on the concave side of the surrounding portion 433 , and facing the clamping device 20 , the elastic layer 44 covers The entire surface of the surrounding portion 433 and the end surface of the top portion 431 .

Please refer to FIG. 8 . When the workpiece 50 is clamped in the clamping device 20 , the workpiece 50 is pushed backward against the push rod 31 , and after the spring 33 is compressed, the clamping parts 23 move toward the workpiece 50 and clamp the workpiece 50 . Hold the workpiece 50; after the workpiece 50 is processed using a processing tool bar installed on the spindle 13, the processing tool bar can be replaced with the stopper guard 40, wherein the processing machine can have an automatic tool changer. The processing machine of the device, after completing the processing, automatically disassembles the processing tool bar from the spindle 13, and installs the stopper guard 40 on the spindle 13, and the spindle 13 can be controlled to move to make the stopper protection The workpiece 40 is located in front of the clamping device 20, facing the workpiece 50; after that, the clamping device 20 releases the workpiece 50, and the spring 33 pushes against the push rod 31 and extends out of the clamping device 20, The push rod 31 pushes the workpiece 50 out of the clamping device 20 . After the workpiece 50 flies away from the clamping device 20 , it collides with the stopper 42 and is blocked by the stopper guard 40 . The elastic layer 44 of the part 42 can provide a buffering effect, absorb the impact force of the workpiece 50 hitting the stopper part 42, and prevent the workpiece 50 from being damaged by hitting the stopper part 42.

Please refer to Figures 1 and 8. A receiving member 60 can be provided below the spindle 13 and the blocking guard 40, so that the workpiece 50 can directly fall into the receiving member 60 after being blocked by the blocking guard 40. .

Since the blocking guard 40 is detachably connected to the spindle 13, the blocking guard 40 is installed to the spindle 13 only after the processing is completed, which will not affect the processing flow, and can utilize the The spindle 13 drives the material blocking guard 40 to move, without the need to install other additional displacement mechanisms on the processing machine, to drive the material blocking guard 40 to move to a suitable blocking position, and the stopper is moved by the pushing device 30 from the material blocking position. When the workpiece 50 is pushed out by the clamping device 20, the blocking portion 42 of the blocking protection member 40 has the elastic layer 44, which can buffer and absorb the impact force to avoid damage to the workpiece 50.

The stopper guard 40 is suitable for use in a processing machine with an automatic tool change mechanism. After the processing is completed, the processing tool bar installed on the spindle 13 is automatically replaced by the stopper guard 40. After the workpiece 50 is processed, , when the workpiece 50 is released by the clamping device 20, it can be automatically pushed out of the clamping device 20 by the push rod 31, and is stopped and buffered by the material blocking guard 40, and can be automatically returned during the At the same time, the workpiece 50 is prevented from flying around, the workpiece 50 is stopped and buffered, and damage to the workpiece 50 is avoided, thereby improving the convenience of machining.

10: Processing machine body

11: Machine base

13:Spindle

20: Clamping device

40:Blocking protection parts

60: Acceptance parts

Claims (5)

A blocking guard is used to detachably install the spindle of a processing machine. The blocking guard includes: a connecting part used for detachable connection with the spindle; and a blocking part , the baffle part is formed at one end of the connecting part, the baffle part has a cover body and an elastic layer, the cover body is integrated with the connecting part, the elastic layer covers the surface of the cover body, and the cover body The body includes a top and a surrounding portion. The top has an end surface facing away from the connecting portion. The surrounding portion is arc-shaped and extends from the end surface of the top in a direction away from the connecting portion. The surrounding portion is concave. A notch is formed on one side. The barrier protection piece as claimed in claim 1, wherein the elastic layer covers the entire surface of the surrounding portion. The barrier protection member of claim 2, wherein the elastic layer covers the end surface of the top. The blocking and protective piece as claimed in any one of claims 1 to 3, wherein the cover body and the connecting portion are made of metal and the elastic layer is an elastic body covering the surface of the cover body. The barrier protection member as claimed in claim 4, wherein the elastic layer is a thermoplastic elastomer.

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