CN218341018U - Machining device suitable for chamfering two end faces of short tubular part - Google Patents

Abstract

The utility model relates to the technical field of machining equipment, in particular to a machining device suitable for chamfering two end faces of short tubular parts, which comprises a device body, wherein a workpiece is fixed on a phase machining station, and the device body comprises a feeding assembly, a clamping assembly, a machining assembly and a receiving assembly; the clamping assembly comprises two clamping jaws arranged in opposite directions, the material receiving assembly is located right below a machining station, the clamping jaws reciprocate along the same straight line, the machining assembly comprises two tool bits arranged in opposite directions, the two tool bits are located on two sides of the two clamping jaws respectively, the two tool bits all reciprocate along the same straight line, and straight lines corresponding to moving paths when the two tool bits reciprocate and the two clamping jaws reciprocate are perpendicular to each other. The utility model discloses have better pay-off stability and processing stability, processing operation high efficiency is high, has reduced intensity of labour, has avoided the easy hourglass processing problem of sending out in the traditional operation, has reduced the incident incidence.

Description

Machining device suitable for chamfering two end faces of short tubular part

Technical Field

The utility model relates to a machining equipment technical field, concretely relates to processingequipment suitable for short tubular part both ends face chamfer.

Background

The industry often uses tubular parts of relatively short length, such as sleeve blanks, sleeves, pipe connections, and the like. After the short tubular parts are manufactured and molded, the end faces with openings at two ends of the short tubular parts are generally required to be processed, including the step of polishing the cutting edge of the end face to enable the end face to be smooth and have no burrs, or the short tubular parts are processed into an end face structure with a certain chamfer angle to facilitate subsequent assembly. When chamfering is performed, chamfering is performed by a manual operation in many conventional methods. During operation, an operator grasps the part by one hand to fix the part, and grasps the electric cutter by the other hand to perform processing such as grinding and cutting.

In actual operation, the parts are not easy to grab and hold due to small size, and the fatigue of operators can be rapidly accumulated under the condition of long-time holding operation, so that the efficiency is influenced, and safety production accidents are easy to happen. In addition, when both ends of the same part need to be chamfered, the processing of one end is easy to be omitted, thereby increasing the quality inspection burden and causing rework. In some use occasions, although the chamfering processing can be assisted by the clamping jig through the fixture table, when both ends of the same part need to be processed, the processing operation needs to be repeated after one end is processed and the other end is replaced. Since the operation of releasing the jig and clamping the workpiece is frequently repeated during the operation, there is a problem that the treatment is often omitted, and the problem of rework is also likely to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a processingequipment suitable for short tubular part both ends face chamfer solves above technical problem.

The utility model provides a technical problem can adopt following technical scheme to realize:

a processing device suitable for chamfers on two end faces of a short tubular part comprises a device body, wherein a workpiece to be processed is fixed on a processing station of the device body for processing, the device body comprises a feeding assembly, a clamping assembly, a processing assembly and a receiving assembly, the workpiece is conveyed to the clamping assembly through the feeding assembly, the clamping assembly clamps the workpiece and then fixes the workpiece, the processing assembly processes the clamped and fixed workpiece on two end faces, and the processed workpiece is collected through the receiving assembly after falling;

the clamping component comprises two clamping jaws which are arranged oppositely, a processing station which is convenient for clamping a workpiece is formed between the two clamping jaws after the two clamping jaws move oppositely, the material receiving component is arranged right below the processing station, the two clamping jaws reciprocate along the same straight line, the two clamping jaws move oppositely face to face and clamp the workpiece between the two clamping jaws and fix the workpiece at the position of the processing station, when the two clamping jaws move oppositely, the workpiece is released and falls into the material receiving component,

the processing component comprises two cutter heads which are arranged oppositely, the two cutter heads are respectively positioned at two sides of the two clamping jaws, and the two cutter heads reciprocate along the same straight line,

the straight lines corresponding to the moving paths of the two cutter heads during reciprocating movement are mutually vertical to the straight lines corresponding to the moving paths of the two clamping jaws during reciprocating movement.

The device body of the utility model clamps and fixes the parts to be processed and processes the two end surfaces of the parts, and the processing operation comprises grinding, cutting, chamfering and the like; the utility model discloses a device body passes through the centre gripping subassembly and realizes treating the centre gripping of processing work piece, realizes the processing to the work piece through processing the subassembly, gets and deposits and subsequent transportation through connecing the connecing of material subassembly to the work piece that processing finishes, and whole course of working realizes automaticly, and machining efficiency is high, and the machining precision is high, saves artifically, reduces the defective percentage.

The feeding assembly comprises a manipulator, and a workpiece is transferred to the processing station through the manipulator to be clamped and fixed by the clamping jaw of the clamping assembly conveniently.

The feeding assembly comprises a vibration disc and a slide rail, the slide rail is obliquely arranged, and the high position end of the slide rail is connected with a discharge hole of the vibration disc, and the low position end of the slide rail is located above the clamping assembly.

The clamping assembly comprises a stop block, one stop block is arranged corresponding to any one of the clamping jaws, and the stop block is positioned beside the side wall of the corresponding clamping jaw.

The utility model discloses a set up the dog, make its side that is located the lateral wall of clamping jaw withdraw the in-process after the clamping jaw release, the work piece of adhesion on the clamping jaw drops from the clamping jaw after being blockked by the dog to play the work piece and prevent the effect of adhesion in the clamping jaw.

The stop block comprises a through hole, and the clamping jaw penetrates through the through hole.

Connect the material subassembly including connecing the workbin, connect the workbin to be equipped with one and connect the material chamber and one and connect the material mouth, connect the material mouth to be located connect the upper surface of workbin, connect the material mouth to connect the material chamber.

The vertical projection of any stop block is arranged in the material receiving port of the material receiving box.

Connect the material subassembly to include the workbin track, connect the workbin place in on the workbin track, the workbin track drives when removing connect the workbin to remove, make it accept the work piece that sufficient has been handled after, can move out of machining area. After a plurality of material receiving boxes are placed on the material box track, workpieces can be subjected to batch uninterrupted processing, and production efficiency is improved.

Has the advantages that: since the technical scheme is used, the utility model discloses traditional manual work mode is compared or carry out semi-mechanized operation mode with the anchor clamps platform, and it has better pay-off stability and processing stability, and the processing operation high efficiency is high, has reduced intensity of labour, has avoided the easy hourglass processing problem of sending out in the traditional homework, has reduced the incident incidence.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a second schematic structural diagram of the present invention;

FIG. 4 is a schematic view of the present invention viewed from one side thereof;

fig. 5 is a schematic view of the present invention viewed from another side.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the specific drawings. It should be noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and in the claims are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments described herein may be implemented in other sequences than those illustrated or described herein. Furthermore, the terms "comprises" or "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements or units is not necessarily limited to those elements or units explicitly listed, but may include other elements or units not expressly listed or inherent to such product or apparatus.

Referring to fig. 1, the processing device suitable for chamfering two end faces of a short tubular part comprises a device body, and a workpiece to be processed is fixed on a processing station of the device body for processing. The device body comprises a feeding assembly, a clamping assembly 1, a processing assembly 2 and a receiving assembly 3, a workpiece 9 is conveyed to the clamping assembly 1 through the feeding assembly, the clamping assembly 1 clamps the workpiece 9 and then fixes the workpiece, the processing assembly 2 processes two end faces of the clamped and fixed workpiece 9, and the processed workpiece 9 falls and is collected through the receiving assembly 3;

as shown in fig. 2, the clamping assembly 1 includes two clamping jaws 101 and a clamping jaw 102 which are arranged in opposite directions, a processing station which is convenient for clamping a workpiece is formed between the clamping jaws 101 and the clamping jaw 102 after the clamping jaws 101 and the clamping jaws 102 move in opposite directions, the material receiving assembly 3 is arranged right below the processing station, the two clamping jaws reciprocate along the same straight line, the two clamping jaws move in opposite directions in a face-to-face manner to clamp the workpiece 9 between the two clamping jaws and fix the workpiece 9 at the position of the processing station, when the two clamping jaws move in opposite directions, the workpiece 9 is released and falls into the material receiving assembly 3,

the machining assembly 2 comprises two opposite cutting heads 201 and 202, which are respectively positioned at two sides of the two clamping jaws (on a straight line), and both of the two cutting heads reciprocate along the same straight line,

the straight line corresponding to the moving path of the two tool bits when they are reciprocated is perpendicular to the straight line corresponding to the moving path of the two jaws when they are reciprocated, and this structure can be observed from the structure shown in fig. 2.

It should be noted that the two jaws of the clamping assembly define between them a machining station, which is determined in the same fixed position due to the limits of movement of the machining head of the machining assembly, and therefore the specific position of the machining station.

Additionally, the utility model discloses in, the removal of clamping jaw and tool bit can adopt sharp actuating mechanism such as cylinder, electric jar or pneumatic cylinder to realize, for example, adopt the cylinder to realize sharp actuating mechanism after, be connected to the clamping jaw to the tip of the telescopic link of cylinder, can refer to the same setting of clamping jaw when setting up the sharp drive structure of tool bit, this type of structure is not xian in industry, belongs to ripe prior art, so the utility model discloses no longer do here further redundantly describe.

The utility model discloses an among the processing procedure, the tool bit of processing subassembly is high-speed the rotation to this carries out the processing to the terminal surface of work piece, and the drive tool bit carries out high-speed pivoted rotary mechanism and includes motor, connecting axle, and this type of rotary mechanism belongs to prior art, the utility model discloses do not apply for the protection to it.

The utility model discloses in, the clamping face of clamping jaw has a sunk structure, and the sunk structure through the clamping jaw of two subtend centre grippings makes work piece 9 by firm centre gripping in the machining-position post, effectively avoids it to drop. The clamping surfaces of the jaws are recessed in the configuration shown in figure 4 for a clear view. In some embodiments, the inner surface of the recess of the recessed structure of the clamping jaw is provided with a cushion layer, and the cushion layer can be made of rubber or silica gel so as to enable the clamping to be firmer and tighter and also to avoid damaging the outer wall of the clamped workpiece.

The utility model discloses a realize the work piece from the circulation of pay-off subassembly to centre gripping subassembly, can set up according to following structure: as shown in fig. 4, the feeding assembly comprises a robot 401, and the workpiece 9 is transferred to the processing station by the robot 401 to be clamped and fixed by the clamping jaws of the clamping assembly 1. The gripper mechanism of the robot 401 is disposed above the processing station and the robot 401 has a path of movement that includes a path from the end of the feeder assembly to the processing station.

As shown in fig. 4, the feeding assembly of the present invention includes a vibration plate 402 and a slide rail 403, the slide rail 403 is disposed in an inclined manner, and the high end of the slide rail is connected to the discharge port of the vibration plate 402, and the low end of the slide rail is located above the clamping assembly 1. After the parts of the workpiece 9 are placed into the vibration disc 402, the parts are conveyed to the high position end of the slide rail 403 in the material arranging process, then sequentially slide to the low position end through the slide rail 403, are taken by the mechanical arm 401, and are conveyed into the processing station at the clamping component 1.

Specifically, as shown in fig. 4, a low-position end of the slide rail 403 is disposed above the clamping assembly 1, and a blocking member (such as a blocking structure like a baffle or a stopper, which is not shown) is disposed at an end of the slide rail to prevent the workpiece 9 conveyed by the slide rail 403 from falling off. The manipulator 401 moves to the low position end of the slide rail 403 to take materials (the manipulator 401 clamps on two end faces of the workpiece 9), and then the materials are conveyed to the clamping assembly 1, and the clamping assembly 1 clamps the (arc-shaped) outer wall of the workpiece 9, so that the workpiece is fixed at the processing station.

The utility model discloses during operation, the pay-off of work piece 9 is divided into three stages and is accomplished by vibrations dish 402, slide rail 403 and manipulator 401 respectively with three, and the work piece 9 of waiting to process is arranged by vibrations dish 402 and is carried in first stage, carries out the second stage by slide rail 403 and carries, and inclined slide rail 403 makes the work piece 9 after arranging be the long-pending formula of putting after adjacent department outer wall is adjacent to be carried to pile up to the low position end of slide rail 403, and the work piece of this moment is located processing station's top somewhere; the third stage of the transfer is performed by the robot 401, and the robot 401 terminates the material from the lower position of the slide 403 and transfers the material to between the jaws of the clamping assembly 1. The clamping component 1 is used for positioning the workpiece to fix the workpiece at a machining station, and then the two end surfaces of the workpiece 9 are respectively processed by the tool bit of the machining component 2 at the same side to simultaneously complete the machining treatment including the inner hole and the excircle of the end surface of the workpiece, wherein the treatment generally refers to corner cutting, deburring, fillet chamfering and the like.

Specifically, after the slide rail 403 is obliquely arranged, the low position end is located above the clamping assembly 1, the moving track of the manipulator 401 winds to the upper side (the path is only planned to avoid the blocking part at the low position end of the slide rail) along the low position end of the slide rail 403, and then winds to the processing station at the lower side, after the manipulator 401 receives the material, the two clamping jaws of the clamping assembly 1 are relatively released at intervals, the processing station convenient for the manipulator 401 which has clamped the workpiece to probe into is formed by the interval gap,

the manipulator 401 transfers the workpiece 9 from the low position end of the slide rail 403 to the processing station, the two clamping jaws move oppositely to clamp and fix the workpiece 9 on the manipulator 401, and the manipulator 401 returns to the initial receiving position after releasing, wherein the initial receiving position is generally above the low position end of the slide rail 403;

it should be noted that the position where the clamping jaws of the clamping assembly 1 clamp the workpiece 9 is the arc-shaped outer wall of the workpiece.

In some embodiments, the robot 401 is of a jaw type configuration that includes a second set of jaws (distinct from jaws 101 and 102) that grip the workpiece 9 at locations on both side faces of the workpiece 9 as shown in fig. 5.

The viewing angles of fig. 4 and 5 are perpendicular to each other. In fig. 5, in order to clearly show the clamping state of the manipulator to the workpiece, a part of the structure of the stopper 11 (of the clamping assembly) for shielding the manipulator is hidden.

The present invention provides a robot 401 having a moving path that moves in a plane (the plane is a vertical plane parallel to the end face of a workpiece), including vertical movement and horizontal movement, since the robot belongs to the prior art, the setting correspondence of its moving mechanism and clamping mechanism also belongs to the prior art.

The utility model discloses do not apply for the protection to its concrete structure setting and action mechanism.

The utility model discloses the work piece of processing is because the texture is slim and graceful and small in size, and even if release the clamping jaw this moment, also can not ensure that it drops on the clamping jaw easy adhesion behind by the clamping jaw centre gripping to not only influence the work piece and retrieve, also disturb follow-up processing operation easily. For this reason, after the clamping component is arranged according to the following structure, the clamping component has the effect of preventing the workpiece from being adhered to the clamping jaw: as shown in fig. 1, 2, 4 and 5, the clamping assembly 1 includes a stop 11, and a stop is provided corresponding to any one of the clamping jaws and is located beside the side wall of the corresponding clamping jaw. In the configuration shown in figure 2, the jaw 101 corresponds to the stop 1101 and the jaw 102 corresponds to the stop 1102.

The utility model discloses a set up dog 11, make its side that is located the lateral wall of clamping jaw withdraw the in-process after the clamping jaw releases, the work piece of adhesion on the clamping jaw breaks away from and drops from the clamping jaw after being blockked by the dog to play the effect that the work piece prevented adhesion in the clamping jaw.

The utility model discloses make the dog have better effect of preventing work piece adhesion clamping jaw after setting up according to following structure: as shown in fig. 1 and 5, the stopper 11 includes a through hole 1100, and the clamping jaw 10 passes through the through hole 1100.

Specifically, as shown in fig. 1 and 5, the body of the clamping jaw 10 has a column structure, and the column structure is horizontal, and two opposite side surfaces (here, the side surfaces refer to side surfaces close to two inner walls of the through hole 1100) of the column structure are vertical surfaces, and the two opposite vertical surfaces and two opposite side walls of the through hole 1100 form a face-to-face arrangement. In the setting, under the condition that the body of the clamping jaw 10 can smoothly pass through the through hole 1100 without hindrance, the distance between the opposite side walls of the through hole 1100 is ensured to be smaller than the length of the workpiece 9 (the length is the distance between the two end faces of the workpiece 9), so that when the clamping jaws 10 are released, the workpiece 9 adhered to the end faces of the clamping jaws 10 is blocked by the edge of the through hole 1100 of the stopper 11 and falls off in the process of reverse movement of the bodies of the two clamping jaws 10.

In some embodiments, the through hole 1100 may be further opened at a lower portion thereof, so that the stopper 11 may be disposed at the clamping jaw 10 from top to bottom, and the through hole 1100 in the structure shown in fig. 1 and 5 of the present invention is the same as the structure.

The utility model discloses connect the material subassembly according to following structure setting: as shown in fig. 1 and 2, the material receiving assembly 3 includes a material receiving box, the material receiving box is provided with a material receiving cavity and a material receiving opening, the material receiving opening is located on the upper surface of the material receiving box, and the material receiving opening is connected with the material receiving cavity.

In some preferred embodiments, the vertical projection of any one of the stoppers 11 falls into the receiving opening of the receiving box, so as to ensure that the processed workpiece can accurately fall into the receiving opening of the receiving box when being discharged.

It should be noted that, in the foregoing embodiment, the vertical projection of the stopper 11 falls in the material receiving opening of the material receiving box, which means that the vertical projection of the end surface of one side of the stopper 11 close to the processing station falls in the material receiving opening of the material receiving box. In the structure shown in fig. 2, a vertical projection of the facing side end surfaces of the stopper 1101 and the stopper 1102 falls within the receiving opening 3001.

The utility model discloses an improve and connect material efficiency, realize on this basis and connect the material automation, can set up according to following structure: as shown in fig. 3, the receiving assembly includes a bin rail 302, and the receiving bin is placed on the bin rail 302, and the bin rail 302 moves to move the receiving bin so that the receiving bin can move out of the processing area after receiving a sufficient number of processed workpieces. After a plurality of material receiving boxes are placed on the material box track 302, workpieces can be processed in batches without interruption, and production efficiency is improved.

Specifically, as shown in fig. 3, a material receiving box 300-1 is already in place in the processing area, at this time, the box rail 302 is in a stopped state, after receiving a certain amount of materials, the current material receiving box 300-1 is sent out after the box rail 302 is started, and the subsequent material receiving box 300-2 is located below the processing station after moving to receive a new round of workpieces; the removed receiving bin 300-1 may then be removed from the bin rail 302 by hand or by a handling tool.

The utility model discloses an improve and connect workbin and the orbital operation precision and the efficiency of workbin, can do following setting:

as shown in FIG. 3, the configuration of the bin rail 302 is implemented with a conveyor belt as a conveying mechanism, and the receiving bin 300-1 and the receiving bin 300-2 are placed on the conveyor belt. Two sides of the conveying belt are respectively provided with a position correcting block 3031 and a position correcting block 3032, each of the position correcting blocks 3031 and the position correcting blocks 3032 is provided with an inclined surface, the inclined surfaces of the position correcting blocks 3031 and the position correcting blocks 3032 which are oppositely arranged face to the material receiving direction (the direction in which the material receiving box moves into the processing station) to form a horn mouth, the conveying belt area between the position correcting blocks 3031 and the position correcting blocks 3032 is positioned right below the processing station, and when the subsequently conveyed material receiving box 300-2 is conveyed into the conveying belt area, the outer wall of the material receiving box is in contact with the horn mouth formed by the position correcting blocks to correct the placement state of the material receiving box, so that the material receiving box is in a placement state on the conveying belt. On the contrary, if no position correction block exists, the abnormal condition of the conveying process or the error during the placement can occur, so that the material receiving box is in a skew state during the conveying process, the material receiving opening on the material receiving box cannot be positioned under the processing station, and the workpiece falls outside the material receiving opening when falling.

In addition, for avoiding the transportation in-process, connect connecing of workbin to connect material stop position transfinite, can set up according to following structure:

as shown in fig. 3, in some embodiments, a position detection unit 304 is disposed at both sides of the conveyor belt for detecting whether the receiving box is in position. For example, the function of the in-place detection unit is realized by adopting a correlation type or reflection type photoelectric sensor, the in-place signal is generated by shielding the photoelectric switch by the material receiving box, and the material receiving box can be accurately stopped in the area right below the processing station after the motor for driving the conveying belt stops according to the in-place signal; or, a contact sensor such as a travel switch or a microswitch is used to realize the function of the in-place detection unit.

In other embodiments, as shown in fig. 3, the two sides of the conveyor belt are provided with baffles 305 (which can also be set as stops), the inclined surfaces of the position correction blocks 3031 and 3032 are positioned at one end, and the baffles 305 are positioned at the other end, and the baffles 305 can stretch and retract to form a stop for the material receiving boxes conveyed on the conveyor belt when extending. The configuration shown in fig. 3 shows that the baffle 305 has been extended to form a blocking structure for preventing the further movement of the receiving box 300-1. The shutter 305 can be extended or retracted by the cylinder 306.

To sum up, the device body of the utility model clamps and fixes the part to be processed and then processes the two end surfaces of the part to be processed, and the processing operation comprises grinding, cutting, chamfering and the like; the utility model discloses a device body passes through the centre gripping subassembly and realizes treating the centre gripping of processing work piece, realizes the processing to the work piece through processing the subassembly, gets and deposits and subsequent transportation through connecing the connecing of material subassembly to the work piece that processing finishes, and whole course of working realizes automaticly, and machining efficiency is high, and the machining precision is high, saves artifically, reduces the defective percentage.

It should be noted that the utility model discloses an operation flow adds into the vibrations dish except that the part needs manual handling, and other actions all can realize automatic operation, and overall efficiency is higher, because the centre gripping action is by mechanical control, therefore its precision can correspond the improvement, has also ensured processingquality.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. A processing device suitable for chamfering two end faces of a short tubular part comprises a device body, wherein a workpiece to be processed is fixed on a processing station of the device body;

the clamping component comprises two clamping jaws which are arranged oppositely, the material receiving component is arranged right below the processing station, the two clamping jaws reciprocate along the same straight line,

the processing component comprises two cutter heads which are arranged oppositely, the two cutter heads are respectively positioned at two sides of the two clamping jaws, and the two cutter heads reciprocate along the same straight line,

the straight lines corresponding to the moving paths of the two cutter heads during reciprocating movement are perpendicular to the straight lines corresponding to the moving paths of the two clamping jaws during reciprocating movement.

2. The apparatus as claimed in claim 1, wherein the feeding assembly comprises a manipulator.

3. The device as claimed in claim 2, wherein the feeding assembly comprises a vibration plate and a slide rail,

the slide rail is arranged in an inclined manner, the high position end of the slide rail is connected with the discharge hole of the vibration disc, and the low position end of the slide rail is positioned above the clamping assembly.

4. The apparatus according to any one of claims 1 to 3, wherein the clamping assembly comprises a stop, and one of the stops is provided for each of the jaws, and is located beside the side wall of the jaw corresponding to the stop.

5. The device as claimed in claim 4, wherein the stop comprises a through hole, and the clamping jaw passes through the through hole.

6. The processing device suitable for chamfering of two end faces of a short tubular part according to any one of claims 1 to 3, wherein the material receiving assembly comprises a material receiving box, the material receiving box is provided with a material receiving cavity and a material receiving opening, the material receiving opening is located on the upper surface of the material receiving box, and the material receiving opening is connected with the material receiving cavity.

7. The processing device suitable for chamfering two end faces of the short tubular part according to claim 4, wherein the material receiving assembly comprises a material receiving box, the material receiving box is provided with a material receiving cavity and a material receiving opening, the material receiving opening is located on the upper surface of the material receiving box, and the material receiving opening is connected with the material receiving cavity;

the vertical projection of any one of the stop blocks is arranged in the material receiving opening of the material receiving box.

8. The processing device suitable for chamfering two end faces of the short tubular part according to claim 6, wherein the material receiving assembly comprises a bin rail, and the material receiving bin is placed on the bin rail.

9. The processing device suitable for chamfering two end faces of the short tubular part according to claim 7, wherein the material receiving assembly comprises a bin rail, and the material receiving bin is placed on the bin rail.

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