CN213497968U - Reversing device for machining precision parts - Google Patents

Abstract

The utility model discloses a reversing device for processing precision parts, which comprises a first feeding mechanism and a second feeding mechanism; the feeding mechanism I is provided with a feeding assembly for conveying materials; the feeding mechanism II is connected with the feeding mechanism I and is provided with a reversing assembly for reversing, conveying and guiding materials; the materials in the feeding assembly are conveyed with one end of the materials in the same direction through the reversing assembly. The reversing device is particularly suitable for the precise parts with appointed processing end faces, and has the advantages of simple structure and high automation degree.

Description

Reversing device for machining precision parts

Technical Field

The utility model relates to the field of machine-building, concretely relates to switching-over device for accurate parts machining.

Background

At present, the existing part machining feeding in the market still needs manual operation usually, and this dependence to operating personnel is high, and is not suitable for the part that the processing required is high, and machining efficiency is lower. Therefore, automatic feeding equipment gradually appears in the market to replace manual operation, and the automatic feeding equipment is efficient, wide in application range and safer than manual operation. However, the automatic feeding devices on the market generally only have a conveying function, that is, the materials are conveyed from the bin to the processing area or another outlet according to a certain speed or mode through the automatic feeding devices, and the placing position or the direction of the parts is not considered in the conveying process.

Precision part machining is one of machining, but because the machining precision of parts is high, the requirements on production machinery and processes are also high. Therefore, for some precision parts at a designated processing position, the automatic feeding device with only a transmission function is not suitable, and particularly for some materials with multiple ends having end surfaces or structures with different shapes, and the materials at one end are designated to be processed in the processing process, the designated ends of the materials need to be transmitted in the same direction in the automatic feeding process, so that the precise turning in the subsequent processing process or the positioning of the materials in the automatic feeding process are facilitated, and the clamping of the clamp is facilitated. Therefore, the demand for automatic feeding equipment for precision part machining is high.

The prior art discloses an automatic reversing device (Chinese patent No. CN201811015120.3) for a cross-shaped workpiece, and the technical scheme is as follows: the workpiece supporting device comprises two supports, two ejector pins and a workpiece, wherein the workpiece is tightly pressed between the two ejector pins, a supporting mechanism for supporting the workpiece is arranged on the end face, facing the workpiece, of each support, and a reversing mechanism for driving the workpiece to horizontally rotate is rotatably arranged on the upper surface of each support. Although the invention can realize automatic reversing of workpieces and has high processing efficiency, the invention can not realize the function that some precise parts need to be automatically identified or identified to be processed on the designated processing end surface in the automatic feeding process or materials which are randomly arranged are reversed to be processed on the designated processing end surface in the automatic feeding process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to not enough among the prior art, provide a switching-over device for accurate parts machining, automatic identification or differentiate the material terminal surface, be particularly useful for appointed processing terminal surface and need at the material loading in-process accurate parts of switching-over to same orientation, simple structure, degree of automation is high.

The utility model discloses a following technical scheme can solve:

a reversing device for machining of precise parts comprises a first feeding mechanism and a second feeding mechanism, wherein the first feeding mechanism and the second feeding mechanism are arranged in a parallel manner

The feeding mechanism I is provided with a feeding assembly which sequentially conveys the thrown materials to a discharge hole;

and the feeding mechanism II is connected with the feeding mechanism I and is provided with a reversing assembly for adjusting the end part of the material conveyed to the discharge port to the same direction.

Preferably, the material loading subassembly includes the vibration dish of carrying the material vibration that inside held to the discharge gate, the discharge gate sets up in vibration dish upper portion, the switching-over subassembly is arranged in the upper portion border of vibration dish.

Preferably, the reversing assembly comprises a guide member for identifying the orientation of at least one end face of the material, and the guide member is arranged in front of the discharge port.

Preferably, the feeding mechanism II is further provided with a guiding member, a blanking channel for conveying the materials after being reversed by the reversing assembly is arranged in the guiding member, and one end of the guiding member is arranged at the lower part of the discharge hole and is fixedly connected with the vibrating disc.

Preferably, the reversing assembly further comprises a bracket for mounting the guide piece, and the bracket is vertically fixed on the outer side of the vibrating disc opposite to the discharge hole.

Preferably, the support is provided with a limiting plate for limiting the swing amplitude of the guide member, and the limiting plate is provided with a semi-closed groove for enabling the guide member to swing.

Preferably, the support is further provided with a reset structure fixed with the support, the reset structure is provided with a return and/or elastic piece for limiting the guide piece, and the reset structure is connected with one end of the guide piece.

Preferably, the material is a cylindrical material with two ends having different structures, and one end of the cylindrical material is provided with a concave part.

Preferably, the upper end of the guide piece is rotatably connected with the bracket, and the lower end of the guide piece is provided with a bending part which can partially or completely extend into the concave part.

Preferably, one end face of the groove is a closed opening, and the closed opening is flush with the discharge hole.

The utility model discloses the main beneficial effect who gains as follows: the first feeding mechanism is provided with a feeding assembly which sequentially conveys the thrown materials to the discharge port, so that the feeding assembly has the function of automatically conveying the materials, the materials are randomly arranged and sequentially conveyed to the discharge port, manual feeding is not needed, and the labor cost is greatly saved. However, for some materials needing to be processed with a specified end face, the materials arranged randomly are very troublesome in the processing process, the product rejection rate is high, the material cannot be processed only by the feeding assembly, and a manual material reversing procedure needs to be added or equipment or a device with a reversing function needs to be added. However, for some precise and tiny materials, an operator cannot conveniently hold the materials, the end face of the material is identified, and the reversing process is easily influenced by subjective consciousness, so that the manual material reversing work efficiency is low, the error rate is high, and the material reversing machine is not suitable for reversing precise parts. Therefore, a device with a reversing function is additionally arranged in the feeding process, the designated processing surface of the material is automatically identified or distinguished, and the randomly arranged material is reversed to the designated processing end surface. Therefore, the utility model discloses still include feed mechanism two, be equipped with and be used for adjusting the switching-over subassembly to same direction with the material tip of carrying to the discharge gate. Through the switching-over subassembly, realize the automatic switching-over of material, need not manual operation, transmission efficiency is high and the switching-over is accurate. On the other hand, the reversing assembly reverses the materials at the discharge hole, so that the materials passing through the discharge hole can be reversed by the reversing assembly, and the reversing assembly has an error-proofing function. In addition, through the connection of the feeding assembly mainly used for material conveying and the reversing assembly mainly used for material reversing, the feeding and the reversing are synchronously carried out, the materials are conveyed and reversed at the same time, the reversing function in the feeding is realized, the time is effectively saved, and the working efficiency is accelerated. Compare in other some switching-over devices on the existing market, it sets up the switching-over part in the course of working, directly drives the material through rotating parts such as being equipped with pivot or swing arm and processes to the station. Although the material reversing function can be realized, the materials are reversed end by end and then processed end by end in the processing process, most of the materials can only be operated on a single material, the processing efficiency is low, and in addition, the positioning accuracy of the materials in the clamping process is not high after the materials rotate for many times. Therefore, the utility model discloses effectively solved the shortcoming of these switching-over devices on the market, can automatic feeding and differentiate the material terminal surface, be particularly useful for appointed processing terminal surface and need at the material loading in-process switching-over to the accurate part of same orientation, simple structure, degree of automation is high.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a diagram of an overall installation position of a reversing device according to an embodiment of the present invention.

Fig. 2 is a first structure diagram and a second structure diagram of a feeding mechanism of a reversing device according to an embodiment of the present invention.

Fig. 3 is a structure diagram of a feeding assembly and a reversing assembly of the reversing device disclosed in an embodiment of the present invention.

Fig. 4 is a cylindrical material diagram of the reversing device disclosed in an embodiment of the present invention.

Fig. 5 is a second structural view of a feeding mechanism of a reversing device according to an embodiment of the present invention.

Fig. 6 is a structural diagram of another reversing component of the reversing device according to an embodiment of the present invention.

Fig. 7 is a structural diagram of another reversing component of the reversing device according to an embodiment of the present invention.

Fig. 8 is a structural diagram of another reversing component of the reversing device according to an embodiment of the present invention.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1 and 2, the present invention discloses, as an embodiment of the present invention, a reversing device for precision part machining, which is installed on a machine tool or an automated machine, or detachably connected to the machine tool or the automated machine. The utility model discloses can be used to process accurate, small mechanical component, also can be according to the size of different materials, the change the utility model discloses a size to be applicable to the material loading and/or the switching-over of more materials. In this embodiment, a gastrointestinal clamp member for use in the processing of medical instruments, is connected to an automated apparatus, as shown in fig. 1. The reversing device comprises a first feeding mechanism 55 and a second feeding mechanism 56, wherein the first feeding mechanism 55 is provided with a feeding assembly 551 which sequentially conveys the thrown materials to a discharge hole, so that the feeding assembly 551 has the function of automatically conveying the materials, the materials are randomly arranged and sequentially conveyed to the discharge hole one by one, manual feeding is not needed, and the labor cost is greatly saved. However, for some materials needing to be processed with a specified end face, the materials arranged randomly are very troublesome in the processing process, the product rejection rate is high, the material feeding assembly 551 is not only arranged, and a manual material reversing procedure needs to be added or an equipment device with a reversing function needs to be added. However, for some precise and tiny materials, an operator cannot conveniently hold the materials, the end face of the material is identified, and the reversing process is easily influenced by subjective consciousness, so that the manual material reversing work efficiency is low, the error rate is high, and the material reversing machine is not suitable for reversing precise parts. Therefore, a device with a reversing function is additionally arranged in the feeding process, the designated processing surface of the material is automatically identified or distinguished, and the randomly arranged material is reversed to the designated processing end surface. Therefore, the second feeding mechanism 56 of the present invention is provided with the reversing component 54 for adjusting the end of the material to be conveyed to the discharge port to the same direction. The reversing assembly 54 can automatically reverse the materials without manual operation, and is high in machining efficiency and reversing accuracy. On the other hand, the reversing assembly 54 reverses the materials at the discharge port, so that the materials passing through the discharge port are all reversed by the reversing assembly 54, and the error-proofing function is achieved. In addition, the feeding assembly 551 mainly used for material conveying and the reversing assembly 54 mainly used for material reversing are connected, so that feeding and reversing are synchronously performed, materials are conveyed while being reversed, the function of reversing in feeding is realized, time is effectively saved, and efficiency is effectively improved. Compare in other some switching-over devices on the existing market, it sets up the switching-over part in the course of working, directly drives the material through rotating parts such as being equipped with pivot or swing arm and processes to the station. Although the material reversing function can be realized, the materials are reversed end by end and then processed end by end in the processing process, most of the materials can only be operated on a single material, the processing efficiency is low, and in addition, the positioning accuracy of the materials in the clamping process is not high after the materials rotate for many times.

As shown in fig. 3, the feeding assembly 551 includes a vibration plate 512 for conveying the material contained therein to the discharging hole 511 in a vibration manner, the inner wall of the vibration plate 512 is a spiral track 5121 which gradually spirals up, and the spiral track 5121 gradually ascends and narrows, so that the spiral track 5121 finally ascends to the discharging hole 511 because the discharging hole 511 is disposed on the upper portion of the inner wall of the vibration plate 512. Specifically, the material is vibrated by the bottom of the vibration plate 512 to ascend along the spiral track 5121, and during the ascending process, along with the narrowing of the spiral track 5121 and the screening of a series of tracks, a part of the material falls to the bottom and is vibrated again to ascend along the spiral track 5121, and the ascending material finally reaches the discharge hole 511 in a single row and single column manner. Therefore, the disordered materials are automatically, orderly and accurately conveyed, and the single materials are gradually output, so that the sequential material reversing of the reversing assembly 54 is facilitated. The vibration plate 512 is further provided with a vibration controller 5122 for controlling the on/off, adjusting the vibration frequency, and the like. In addition, the reversing assembly 54 is arranged at the upper edge of the vibrating disk 512, specifically on the outer wall surface of the vibrating disk 512 opposite to the discharge port 511, and is adjacent to the discharge port 511 at a certain interval, and the distance between the two parts is short, which is beneficial to the close connection of the discharge and the reversing of the materials, and the efficiency is higher. In other embodiments, if the reversing assembly 54 is far from the discharge port 511 and is disposed on other end surfaces of the vibrating plate 512 or other devices, the reversing of the material may also be performed, but a connecting member or a transmission member is also required to connect the two, which makes the structure more complicated and the efficiency lower. In other embodiments, the feeding assembly 551 may also use other devices with feeding function, such as a pneumatic feeder, an electric vacuum feeder, etc.

Specifically, the reversing assembly 54 comprises a guide 541 for identifying at least one end face of the material facing, the guide 541 is arranged on the reversing assembly 54 and is vertically long, the guide 541 is arranged in front of the discharge port 511, the lower end of the guide 541 is substantially flush with the material in the discharge port 511, and the guide 541 is not or partially contacted with the end face of the discharge port 511 in the material reversing process. Specifically, in the discharging process, the materials are individually discharged to the discharging port 511 until any end surface of the materials contacts with the guide 541, and the materials push the guide 541 at the front part outwards under the action of force.

As shown in fig. 4, the material in this embodiment is a cylindrical material 3 with two different structures at two ends, specifically, one end of the cylindrical material 3 is provided with a recess 31, and a small hole 32 is provided in the middle, and the other end is a closed plane end 33. In other embodiments, the cylindrical material 3 may be other materials with different structures or shapes at multiple ends, and at least one end surface of the cylindrical material may be reversed by the guiding element 541.

As shown in fig. 5, the second feeding mechanism 56 is further provided with a guiding member 53, the guiding member 53 can accommodate a plurality of materials, and a blanking channel 531 for conveying the materials diverted by the diverting assembly 54 is arranged in the guiding member 53. In this embodiment, the discharging channel 531 is a pipe-shaped hollow structure with a width slightly wider than the diameter of the cylindrical material 3, so that the cylindrical material 3 is transported in a single row and single column to ensure the consistency with the discharging speed and the discharging amount of the vibrating device 512, and prevent the phenomenon that the cylindrical material 3 is piled up too much or the material is vacant. Specifically, the feeding end 5311 of the blanking channel 531 is fixedly connected to the vibration plate 512 and disposed at the lower portion of the discharge port 511, and the feeding end 5311 of the blanking channel 531 is inclined at an angle relative to the discharge port 511, so as to satisfy the motion rule that the cylindrical material 3 is inclined downward and slides down in the discharging process. In addition, the feeding end 5311 of the blanking channel 531 extends outwards to protrude from the discharging hole 511 or is flush with the discharging hole 511, so that the feeding end 5311 can better catch the falling cylindrical material 3. The discharging end 5312 of the blanking channel 531 is connected to the positioning component 55 on the frame 7, and the feeding end 5311 is higher than the discharging end 5312 with the ground as a reference surface, so that the cylindrical material 3 automatically slides down to the discharging end 5312 according to the center of gravity. In other embodiments, the guiding members 53 can be two or more than two or be widened in width to accommodate multiple rows and multiple columns of materials, all with the above-mentioned effects, and the conveying efficiency is higher.

As shown in fig. 6, the reversing assembly 54 further includes a bracket 532 for mounting the guide 541, the bracket 532 is vertically fixed on the outer side of the vibrating plate 512 opposite to the discharging port 511, a support 533 is fixed on the upper end of the bracket 532, the support 533 is a columnar structure protruding toward the inner end surface of the bracket 532, furthermore, the protruding length of the support 533 is not less than the length from the inner end surface of the bracket 532 to the discharging port 511, and the height of the support 533 on the bracket 533 is required to be equal to the height of the guide 531 flush with the cylindrical material 3 in the discharging port 511, so that the guide 531 is just placed at the discharging port 511.

Specifically, the upper end of the guide 541 is rotatably connected to the support 533 and can swing within a certain range. The lower end of the guiding member 541 is provided with a bending portion 5313 which can partially or completely extend into the recess 31 or the small hole 32 of the cylindrical material 3, and the bending portion 5313 and the guiding member 531 are bent towards the discharging opening 511 at an angle slightly larger than 90 degrees. During discharging, the cylindrical material 3 pushes out the bent portion 5313 of the guide 541, and the end of the recessed portion 31 faces the bent portion 5313, the bent portion 5313 can catch the recessed portion 31 when the cylindrical material 3 falls, so that the flat end 33 inclines downward and slides down to the feeding end 5311 of the discharging channel 531, thereby completing the reversing. However, if the flat end 33 faces the bent portion 5313, the bent portion 5313 cannot catch the cylindrical material 3, and the cylindrical material 3 falls into the vibration plate 512, so that the direction change and the transmission cannot be completed. In addition, if the feed member 53 is filled with the material, the material overflows from the opening of the feed end 5311, and even if the end of the concave portion 31 faces the bent portion 5313, the flat end 33 collides with the cylindrical material 3 at the opening of the feed end 5311 in the process of being inclined downward, and thus falls into the vibration plate 512. Therefore, the reversing and conveying can be completed only when the guiding member 53 is not full and the end of the concave portion 31 of the cylindrical material 3 faces the bending portion 5313 during discharging, and the functions of automatically recognizing the end surface of the cylindrical material 3 and uniformly reversing the random two end surfaces of the cylindrical material 3 to the flat end 33 are provided.

As shown in fig. 7 and 8, a limit plate 551 for limiting the swing range of the guide 541 is fixedly connected to the bracket 532, the guide 531 is clamped in the groove 5411, and the guide 541 swings left and right and/or back and forth within the range of the groove 5411 according to the thrust force and a certain inertia force of the cylindrical material 3 to the guide 531. The right end face of the limiting plate 551 is flush with the right end face of the support 533, and the length of the left end face of the limiting plate 541 exceeds or is flush with the position of the discharge hole 511, so that the whole swing range of the guide piece 541 can be limited. The limiting plate 551 is provided with a semi-closed groove 5411 for the guide member 531 to swing, the left end of the groove 5411 is a closed opening 5412, so that the guide member 531 swings to the position of the closed opening 5412 at most, and in addition, the closed opening 5412 is just flush with the position of the discharge opening 511, so that the guide member 531 is prevented from colliding with the discharge opening 511 when swinging, and the guide member 531 is prevented from being damaged; the right end of the groove 5411 is open, which facilitates the detachment and connection of the guide 541 and the groove 5411. In addition, the width of the groove 5411 is slightly larger than that of the guide member 531, so that the front-back displacement amount cannot be too large while the guide member 531 can flexibly pass through or swing in the groove 5411, and the bending portion 5313 of the guide member 541 can hook the concave portion 31 or the small hole 32 of the cylindrical material 3 more accurately.

In some embodiments, a restoring structure 534 fixed to the support 533 is disposed inside the support 533 for buffering and restoring the guide 541 during the swinging process. The restoring structure 534 is provided with an elastic member 5341 for restoring and/or limiting the guide member 541, so as to avoid the guide member 541 from swinging too fast and being stuck in the swinging process, and being unable to restore. Pressing pads 5342 are provided on the outer side of the elastic member 5341, in this example, two pressing pads 5342 are provided, and the upper end of the guide member 531 is interposed between the two pressing pads 5342, thereby preventing the guide member 541 from being displaced on the support 533 in the forward and backward direction by an excessive amount. In addition, the restoring structure 534 further has a lock nut 5343 disposed at the outermost side of the restoring structure 534, and prevents the pressing washer 5342, the guide 541 and the elastic member 5341 from loosening by the interaction force with the support 533. In other embodiments, the restoring structure 534 can also adopt other structures such as elastic elements or sliding elements, etc. having the above-mentioned functions.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims (10)

1. A reversing device for machining of precision parts is characterized in that: comprises a first feeding mechanism and a second feeding mechanism, wherein

The feeding mechanism I is provided with a feeding assembly which sequentially conveys the thrown materials to a discharge hole;

and the feeding mechanism II is connected with the feeding mechanism I and is provided with a reversing assembly for adjusting the end part of the material conveyed to the discharge port to the same direction.

2. The commutation apparatus of claim 1, wherein: the material loading subassembly is including carrying the vibration dish to the discharge gate with the material vibration that inside held, the discharge gate sets up in vibration dish upper portion, the switching-over subassembly is arranged in the upper portion border of vibration dish.

3. The commutation apparatus of claim 2, wherein: the reversing assembly comprises a guide piece used for identifying the orientation of at least one end face of the material, and the guide piece is arranged in the front of the discharge hole.

4. The commutation apparatus of claim 3, wherein: the feeding mechanism II is further provided with a guiding component, a blanking channel for transmitting materials after the materials are reversed by the reversing assembly is arranged in the guiding component, and one end of the guiding component is arranged at the lower part of the discharge hole and is fixedly connected with the vibrating disc.

5. The commutation apparatus of claim 4, wherein: the reversing assembly further comprises a support used for hanging the guide piece, and the support is vertically fixed on the outer side of the vibrating disc opposite to the discharge hole.

6. The commutation apparatus of claim 5, wherein: the support is provided with a limiting plate for limiting the swing amplitude of the guide piece, and the limiting plate is provided with a semi-closed groove for the guide piece to swing.

7. The commutation apparatus of claim 6, wherein: the support is further provided with a reset structure fixed with the support, the reset structure is provided with a return and/or limit elastic piece of the guide piece, and the reset structure is connected with one end of the guide piece.

8. The commutation apparatus of claim 7, wherein: the material is a cylindrical material with two ends having different structures, and a concave part is arranged at one end part of the cylindrical material.

9. The commutation apparatus of claim 8, wherein: the upper end of the guide piece is rotatably connected with the bracket, and the lower end of the guide piece is provided with a bending part which can partially or completely extend into the concave part.

10. The commutation apparatus of claim 9, wherein: one end face of the groove is a closed opening, and the closed opening is flush with the position of the discharge hole.

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