Metal pipe double edge deburring machine

Abstract

The present invention discloses a double-sided deburring machine for metal pipe fittings, including a machine tool and a control device, wherein a work surface is fixedly provided on the machine tool, and a feeding device, a chip removal device and a feeding device are provided on the work surface, wherein the chip removal device includes a conveying structure, a double-sided chip removal structure and an inner hole chip removal structure, wherein the double-sided chip removal structure includes a first chip removal unit and a second chip removal unit having the same structure and symmetrically arranged on both sides of the conveying structure, wherein the inner hole chip removal structure and the feeding device are successively located at the rear of the conveying structure, wherein the feeding device is located at the front of the conveying unit, wherein the first chip removal unit includes a long tube bottom plate and a side fixing plate vertically arranged and fixedly connected to the long tube bottom plate, wherein the side fixing plate is provided with a chip removal material groove corresponding to the position of the conveying structure. Through the above-mentioned method, the present invention can simultaneously complete the double-sided deburring action of metal pipe fittings.

Description

Technical Field

[0001] The invention relates to the technical field of deburring, in particular to a double-sided deburring machine for metal pipe fittings. Background Art

[0002] For finished metal pipes, the burr cutting process is also one of the processing processes. There is excess burr on the edges and corners of the newly manufactured metal pipes, which looks very rough and cannot be used directly. The burr cutting process is required to make the edges and corners of the metal pipes smooth.

[0003] There are many types of burr cutting machines on the market, but there is a lack of burr cutting machines for metal pipes, especially instruments for burr cutting at both ends of metal pipes. If the burr cutting machines on the market are used for modification, the cost is relatively high and the economic benefits are not high. Moreover, the burr cutting machines on the market have complex structures and large volumes.

[0004] As pipe processing requirements become higher and higher, and types become more and more diverse, the trend towards full automation becomes more and more obvious, fully automated machines become more and more popular, and the requirements for production efficiency become faster and faster. Summary of the invention

[0005] The purpose of the present invention is to provide a double-sided deburring machine for metal pipe fittings, which can simultaneously complete the deburring action on both sides of the metal pipe fittings.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a double-sided deburring machine for metal pipe fittings, including a machine tool and a control device, a work table is fixedly provided on the machine tool, a loading device, a chip removing device and a unloading device are arranged on the work table, the chip removing device includes a conveying structure, a double-sided chip removing structure and an inner hole chip removing structure, the double-sided chip removing structure includes a first chip removing unit and a second chip removing unit with the same structure and symmetrically arranged on both sides of the conveying structure, the inner hole chip removing structure and the unloading device are successively located at the tail of the conveying structure, the loading device is located at the front of the conveying unit, the first chip removing unit includes a long tube bottom plate and a side plate which is vertically arranged and fixedly connected to the long tube bottom plate A fixed plate, the side fixed plate is provided with a chip removing trough at the position corresponding to the conveying structure, the fixed bottom plate is installed on the long tube bottom plate through a micro-adjustment device, a driving fixed vertical plate and two relatively arranged side plates are fixedly installed on the fixed bottom plate, a rotating shaft is passed through the two side plates, a brush is fixedly installed on the rotating shaft, the brush corresponds to the chip removing trough, and a chip removing driver is fixedly provided on the outer side surface of the driving fixed vertical plate, corresponding material discharge holes are provided on the fixed bottom plate and the long tube bottom plate, a material plate trough tube is provided between the chip removing trough and the material discharge hole to connect and seal them, and the brushes of the first and second chip removing units sweep the metal chips on both sides of the metal pipe into the material plate trough tube.

[0007] Furthermore, the work table is provided with a first linear slide rail arranged in parallel, and the linear slide rail is provided with a first group of sliders and a second group of sliders, the first group of sliders and the second group of sliders are respectively fixedly connected to the lower end surfaces of the long tube bottom plates of the first chip removal unit and the second chip removal unit, and a symmetrically arranged first adjustment seat is fixedly installed on the work table, a screw rod is installed in the first adjustment seat, a nut block is matched with the screw rod and fixedly connected to the long tube bottom plate via a connecting plate, and the running direction of the nut block on the screw rod is the same as the running direction of the linear slide rail.

[0008] Furthermore, the micro-adjustment device includes a second linear slide rail fixed parallel to the upper end surface of the long tube base plate, a slider of the second linear slide rail is fixedly installed on the lower end surface of the fixed base plate, a second adjustment seat is fixedly arranged on the long tube base plate, an adjustment rod is provided on the second adjustment seat, the adjustment direction of the adjustment rod is the same as the running direction of the linear slide rail, and the adjustment rod is connected to the outer end surface of the fixed base plate.

[0009] Furthermore, the conveying structure includes a left column and a right column, and a sprocket belt and a pressing belt are fixedly installed between the left column and the right column. The pressing belt is located on the stop side of the sprocket belt, and the metal pipe is clamped in the recess between adjacent sprockets in the sprocket belt, and the pressing belt presses and fixes the metal pipe.

[0010] Furthermore, the unloading device includes a unloading seat, a unloading plate, an unloading chip collection cover, an unloading annular air knife, an unloading annular air knife driver, an electric slide rail, an unloading rotary driver, an unloading lifting rod and positive and negative unloading heads. The upper end surface of the unloading seat is provided with a positioning groove, the unloading plate is located between the unloading seat and the unloading chip collection cover which are relatively arranged, the unloading bracket is fixedly installed on the slider of the electric slide rail, the unloading rotary driver is fixedly installed on the unloading bracket, the rotating end of the unloading rotary driver is fixedly installed with an unloading lifting rod, the end of the unloading lifting rod is installed with positive and negative unloading heads through a one-way locking structure, the tube fitting at the front end of the unloading chip collection cover is installed with an unloading annular air knife which can be retracted therein, the top of the unloading chip collection cover is fixedly installed with an unloading annular air knife driver, and the driving end of the unloading annular air knife driver is fixedly connected to the unloading annular air knife.

[0011] Furthermore, the inner hole chip removing structure includes an inner hole chip removing bracket, an inner hole chip removing driver, an inner hole chip removing brush, an inner hole chip removing and chip collecting cover and an inner hole chip removing annular air knife. The inner hole chip removing bracket and the inner hole chip removing annular air knife are respectively fixedly mounted on the outer side surfaces of the side fixing plates of the first chip removing unit and the second chip removing unit. The inner hole chip removing bracket is fixedly mounted with the inner hole chip removing driver. The driving end of the inner hole chip removing driver is fixedly mounted with the inner hole chip removing brush. The other end of the inner hole chip removing annular air knife is connected to the inner hole chip removing and chip collecting cover. The inner hole chip removing driver passes the inner hole chip removing brush through the metal pipe and then into the inner hole chip removing annular air knife.

[0012] Furthermore, the positioning groove on the upper end surface of the unloading seat is V-shaped, and a positioning hole is provided on the inclined surface of the positioning groove close to the sprocket belt. The lower end of the unloading seat is fixedly provided with a unloading positioning driver, and the driving end of the unloading positioning driver is fixedly installed with a unloading positioning baffle that rises and falls in the positioning hole.

[0013] Furthermore, the feeding device includes a feeding conveyor belt and a fixed seat fixed on the feeding conveyor belt, a feeding driver is fixedly installed on the fixed seat, a push plate is fixedly installed on the driving end of the feeding driver, and the push plate pushes the metal pipe fittings on the feeding conveyor belt into the conveying structure.

[0014] Furthermore, a feed guide rail is fixedly mounted on the inner side surface of the side fixing plates of the first chip removing unit and the second chip removing unit, and a feed guide groove is provided on the inner side surface of the feed guide rail.

[0015] Furthermore, the ends of the forward and reverse blanking heads are provided with hooks extending upward.

[0016] The beneficial effects of the present invention are as follows: the double-sided deburring machine for metal pipe fittings of the present invention can simultaneously complete the deburring of the double sides of the metal pipe fittings, collect metal dust, avoid environmental pollution, automatically deburr, save manpower, and greatly improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of a double-sided deburring machine for metal pipe fittings of the present invention;

[0019] Figure 2 It is a schematic diagram of a double-sided deburring machine for metal pipe fittings of the present invention;

[0020] Figure 3 It is a top view of a double-sided deburring machine for metal pipes of the present invention;

[0021] Figure 4 It is a schematic diagram of adjusting a double-sided deburring machine for metal pipes of the present invention;

[0022] Figure 5 It is a side view of a double-sided deburring machine for metal pipes of the present invention;

[0023] Figure 6 The invention discloses a schematic diagram of conveying and feeding a double-sided deburring machine for metal pipe fittings.

[0024] 1. Machine tool; 2. Control device; 3. Work table; 4. Long tube bottom plate; 5. Side fixed plate; 6. Fixed bottom plate; 7. Drive fixed vertical plate; 8. Side plate; 9. Brush; 10. Chip removal driver; 11. Feeding hole; 12. Feeding plate groove tube; 13. First linear guide rail; 14. First adjustment seat; 15. Screw rod; 16. Second linear guide rail; 17. Second adjustment seat; 18. Left column; 19. Right column; 20. Sprocket belt; 21. Pressing belt; 22. Feeding; 23. Feeding plate; 24. Feeding Chip collecting cover; 25. Material annular air knife; 26. Unloading annular air knife driver; 27. Electric slide rail; 28. Unloading rotary driver; 29. ​​Unloading lifting rod; 30. Positive and negative unloading heads; 31. Unloading bracket; 32. Inner hole chip removal bracket; 33. Inner hole chip removal driver; 34. Inner hole chip removal brush; 35. Inner hole chip removal and chip collecting cover; 36. Inner hole chip removal annular air knife; 37. Unloading positioning driver; 38. Loading conveyor belt; 39. Fixed seat; 40. Loading driver; 41. Push plate; 42. Feed guide rail. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present invention clearer, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in the accompanying drawings and described according to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0026] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0027] Also, in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] See also Figures 1 to 6 , an embodiment of the present invention includes: a double-sided deburring machine for metal pipe fittings, including a machine tool 1 and a control device 2, a work table 3 is fixedly provided on the machine tool 1, a feeding device, a chip removal device and a feeding device are provided on the work table 3, the chip removal device includes a conveying structure, a double-sided chip removal structure and an inner hole chip removal structure, the double-sided chip removal structure includes a first chip removal unit and a second chip removal unit with the same structure and symmetrically arranged on both sides of the conveying structure, the inner hole chip removal structure and the feeding device are successively located at the tail of the conveying structure, the feeding device is located at the front of the conveying unit, the first chip removal unit includes a long tube bottom plate 4 and a side fixing plate 5 vertically arranged and fixedly connected to the long tube bottom plate 4, the side fixing plate 5 corresponds to the conveying A chip removing trough is provided at the structural position, and a fixed bottom plate 6 is installed on the long tube bottom plate 4 through a fine-adjustment device. A driving fixed vertical plate 7 and two side plates 8 arranged oppositely are fixedly installed on the fixed bottom plate 6. A rotating shaft is passed between the two side plates 8, and a brush 9 is fixedly installed on the rotating shaft. The brush 9 corresponds to the chip removing trough, and a chip removing driver 10 is fixedly provided on the outer side surface of the driving fixed vertical plate 7. Corresponding discharge holes 11 are provided on the fixed bottom plate 6 and the long tube bottom plate 4, and a material plate trough tube 12 is provided between the chip removing trough and the discharge hole 11 to connect and seal them. The brushes 9 of the first and second chip removing units sweep the metal chips on both sides of the metal pipe into the material plate trough tube 12.

[0029] Furthermore, the work table 3 is provided with a first linear slide rail 13 arranged in parallel, and the first linear slide rail 13 is provided with a first group of sliders and a second group of sliders, and the first group of sliders and the second group of sliders are respectively fixedly connected to the lower end surfaces of the long tube bottom plates 4 of the first chip removal unit and the second chip removal unit, and a symmetrically arranged first adjustment seat 14 is fixedly installed on the work table, and a screw rod 15 is installed in the first adjustment seat 14, and a nut block is matched with the screw rod 15, and the nut block is fixedly connected to the long tube bottom plate 4 through a connecting plate, and the running direction of the nut block on the screw rod 15 is the same as the running direction of the linear slide rail 13.

[0030] Furthermore, the micro-adjustment device includes a second linear slide rail 16 fixed parallel to the upper end surface of the long tube base plate 4, the slider of the second linear slide rail 16 is fixedly installed on the lower end surface of the fixed base plate 6, and a second adjustment seat 17 is fixedly arranged on the long tube base plate 4, and an adjustment rod is provided on the second adjustment seat 17, and the adjustment direction of the adjustment rod is the same as the running direction of the second linear slide rail 16, and the adjustment rod is connected to the outer end surface of the fixed base plate 6.

[0031] Furthermore, the conveying structure includes a left column 18 and a right column 19, and a sprocket belt 20 and a pressing belt 21 are fixedly installed between the left column 18 and the right column 18. The pressing belt 21 is located at the stop side of the sprocket belt 20, and the metal pipe fittings are clamped in the recesses between adjacent sprockets in the sprocket belt 20, and the pressing belt 21 presses and fixes the metal pipe fittings.

[0032] Furthermore, the unloading device includes an unloading seat 22, an unloading plate 23, an unloading chip collecting cover 24, an unloading annular wind knife 25, an unloading annular wind knife driver 26, an electric slide rail 27, an unloading rotary driver 28, an unloading pick rod 29 and a forward and reverse unloading head 30. The upper end surface of the unloading seat 22 is provided with a positioning groove, the unloading plate 23 is located between the unloading seat 22 and the unloading chip collecting cover 24 which are arranged opposite to each other, and an unloading bracket 31 is fixedly installed on the slider of the electric slide rail 27, and the unloading bracket 31 is fixedly installed on the unloading bracket 31. A material unloading rotary driver 28 is fixedly installed, and a material unloading lifting rod 29 is fixedly installed on the rotating end of the material unloading rotary driver 28. The end of the material unloading lifting rod 29 is installed with a forward and reverse material unloading head 30 through a one-way locking structure. A material unloading annular air knife 25 that can be retracted and retracted is installed in the pipe fitting at the front end of the material unloading chip collecting cover 24. A material unloading annular air knife driver 26 is fixedly installed on the top of the material unloading chip collecting cover 24. The driving end of the material unloading annular air knife driver 26 is fixedly connected to the material unloading annular air knife 25.

[0033] Furthermore, the inner hole chip removing structure includes an inner hole chip removing bracket 32, an inner hole chip removing driver 33, an inner hole chip removing brush 34, an inner hole chip removing and collecting cover 35 and an inner hole chip removing annular air knife 36. The inner hole chip removing bracket 32 ​​and the inner hole chip removing annular air knife 36 are respectively fixedly mounted on the outer side surfaces of the side fixing plates 5 of the first chip removing unit and the second chip removing unit. The inner hole chip removing bracket 32 ​​is fixedly mounted with the inner hole chip removing driver 33. The driving end of the inner hole chip removing driver 33 is fixedly mounted with the inner hole chip removing brush 34. The other end of the inner hole chip removing annular air knife 36 is connected to the inner hole chip removing and collecting cover 35. The inner hole chip removing driver 33 passes the inner hole chip removing brush 34 through the metal pipe and then into the inner hole chip removing annular air knife 36.

[0034] Furthermore, the positioning groove on the upper end surface of the unloading seat 22 is V-shaped, and a positioning hole is provided on the inclined surface of the positioning groove close to the sprocket belt. The lower end of the unloading seat 22 is fixedly provided with an unloading positioning driver 37, and the driving end of the unloading positioning driver 37 is fixedly installed with an unloading positioning baffle that rises and falls in the positioning hole.

[0035] Furthermore, the feeding device includes a feeding conveyor belt 38 and a fixed seat 39 fixed on the feeding conveyor belt, a feeding driver 40 is fixedly installed on the fixed seat 39, a push plate 41 is fixedly installed on the driving end of the feeding driver 40, and the push plate 41 pushes the metal pipe fittings on the feeding conveyor belt 38 into the conveying structure.

[0036] Furthermore, a feed guide rail 42 is fixedly mounted on the inner side surface of the side fixing plate 5 of the first chip removing unit and the second chip removing unit, and a feed guide groove is provided on the inner side surface of the feed guide rail 42 .

[0037] Furthermore, the end of the forward and reverse blanking head 30 is provided with a hook portion extending upward.

[0038] The working process of a double-sided deburring machine for metal pipes of the present invention is as follows: a push plate pushes the metal pipes on the feeding conveyor belt onto the sprocket belt of the conveying structure, the pressing belt presses the metal pipes on the sprocket belt and conveys the metal pipes forward at the same time, the brushes of the first chip removal unit and the second chip removal unit simultaneously sweep the metal chips on both sides of the metal pipes into the groove tube of the material plate, the metal pipes after double-sided chip removal are conveyed to the inner hole chip removal structure, the inner hole chip removal driver passes the inner hole chip removal brush through the metal pipe and then into the inner hole chip removal annular air knife to remove the metal chips in the metal pipe, and the metal pipes after the metal chips are removed are conveyed to the V-shaped positioning groove of the unloading seat. Inside, the electric slide rail carries the forward and reverse feeding heads to run forward through the metal pipe to pick up the metal pipe, and at the same time, the feeding annular wind knife driver drives the feeding annular wind knife to run toward the metal pipe so that the metal pipe is located in the feeding annular wind knife to confirm that the metal chips of the metal pipe are sucked clean, and then the feeding annular wind knife driver drives the feeding annular wind knife back to its original position. Since the forward and reverse feeding heads are fixedly connected to the feeding pick-up rod through a one-way locking structure, the feeding rotary driver drives the forward and reverse feeding heads to rotate, and the forward and reverse feeding heads rotate downward with the connection with the feeding pick-up rod as the center of the circle, and the metal pipe falls onto the feeding plate, and a complete process of removing metal chips from both sides of the metal pipe is completed.

[0039] The beneficial effects of the present invention are as follows: the double-sided deburring machine for metal pipe fittings of the present invention can simultaneously complete the deburring of the double sides of the metal pipe fittings, collect metal dust, avoid environmental pollution, automatically deburr, save manpower, and greatly improve production efficiency.

[0040] In addition, it should be noted that in this specification, "includes", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0041] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A double-sided deburring machine for metal pipes, characterized in that It comprises a machine tool and a control device, a work table is fixedly provided on the machine tool, a loading device, a chip removal device and a unloading device are arranged on the work table, the chip removal device comprises a conveying structure, a double-sided chip removal structure and an inner hole chip removal structure, the double-sided chip removal structure comprises a first chip removal unit and a second chip removal unit with the same structure and symmetrically arranged on both sides of the conveying structure, the inner hole chip removal structure and the unloading device are successively located at the rear of the conveying structure, the loading device is located at the front of the conveying unit, the first chip removal unit comprises a long tube bottom plate and a side fixing plate vertically arranged and fixedly connected to the long tube bottom plate, the side fixing plate corresponds to the position of the conveying structure A chip removing trough is provided, a fixed bottom plate is installed on the long tube bottom plate through a micro-adjustment device, a driving fixed vertical plate and two side plates arranged oppositely are fixedly installed on the fixed bottom plate, a rotating shaft is passed between the two side plates, a brush is fixedly installed on the rotating shaft, the brush corresponds to the chip removing trough, a chip removing driver is fixedly provided on the outer side surface of the driving fixed vertical plate, corresponding material discharge holes are provided on the fixed bottom plate and the long tube bottom plate, a material plate trough tube is provided between the chip removing trough and the material discharge hole to connect and seal them, and the brushes of the first and second chip removing units sweep the metal chips on both sides of the metal pipe into the material plate trough tube.

2. The double-sided deburring machine for metal pipes according to claim 1, characterized in that: The work table is provided with a first linear slide rail arranged in parallel, and a first group of sliders and a second group of sliders are provided on the linear slide rail. The first group of sliders and the second group of sliders are respectively fixedly connected to the lower end surfaces of the long tube bottom plates of the first chip removal unit and the second chip removal unit. A symmetrically arranged first adjustment seat is fixedly installed on the work table, and a screw rod is installed in the first adjustment seat. A nut block is matched with the screw rod and fixedly connected to the long tube bottom plate via a connecting plate. The running direction of the nut block on the screw rod is the same as the running direction of the linear slide rail.

3. The double-sided deburring machine for metal pipes according to claim 1, characterized in that: The fine-adjustment device includes a second linear slide rail fixed in parallel to the upper end surface of the long tube base plate, a slider of the second linear slide rail is fixedly installed on the lower end surface of the fixed base plate, a second adjustment seat is fixedly arranged on the long tube base plate, an adjustment rod is arranged on the second adjustment seat, the adjustment direction of the adjustment rod is the same as the running direction of the linear slide rail, and the adjustment rod is connected to the outer end surface of the fixed base plate.

4. The double-sided deburring machine for metal pipes according to claim 1, characterized in that: The conveying structure includes a left column and a right column, and a sprocket belt and a pressing belt are fixedly installed between the left column and the right column. The pressing belt is located at the stop side of the sprocket belt, and the metal pipe fittings are clamped in the recesses between adjacent sprockets in the sprocket belt, and the pressing belt presses and fixes the metal pipe fittings.

5. The double-sided deburring machine for metal pipes according to claim 1, characterized in that: The unloading device includes a unloading seat, a unloading plate, an unloading chip collection cover, an unloading annular air knife, an unloading annular air knife driver, an electric slide rail, an unloading rotary driver, an unloading lifting rod and positive and negative unloading heads. The upper end surface of the unloading seat is provided with a positioning groove, and the unloading plate is located between the unloading seat and the unloading chip collection cover which are relatively arranged. The unloading bracket is fixedly installed on the slider of the electric slide rail, and the unloading rotary driver is fixedly installed on the unloading bracket. The rotating end of the unloading rotary driver is fixedly installed with an unloading lifting rod, and the end head of the unloading lifting rod is installed with positive and negative unloading heads through a one-way locking structure. An unloading annular air knife that can be retracted and retracted is installed in the pipe fitting at the front end of the unloading chip collection cover, and an unloading annular air knife driver is fixedly installed on the top of the unloading chip collection cover, and the driving end of the unloading annular air knife driver is fixedly connected to the unloading annular air knife.

6. The double-sided deburring machine for metal pipes according to claim 1, characterized in that: The inner hole chip removing structure includes an inner hole chip removing bracket, an inner hole chip removing driver, an inner hole chip removing brush, an inner hole chip removing and chip collecting cover and an inner hole chip removing annular air knife. The inner hole chip removing bracket and the inner hole chip removing annular air knife are respectively fixedly mounted on the outer side surfaces of the side fixing plates of the first chip removing unit and the second chip removing unit. The inner hole chip removing bracket is fixedly mounted with the inner hole chip removing driver. The driving end of the inner hole chip removing driver is fixedly mounted with the inner hole chip removing brush. The other end of the inner hole chip removing annular air knife is connected to the inner hole chip removing and chip collecting cover. The inner hole chip removing driver passes the inner hole chip removing brush through the metal pipe and then into the inner hole chip removing annular air knife.

7. The double-sided deburring machine for metal pipes according to claim 5, characterized in that: The positioning groove on the upper end surface of the unloading seat is V-shaped, and a positioning hole is provided on the inclined surface of the positioning groove close to the sprocket belt. The lower end of the unloading seat is fixedly provided with an unloading positioning driver, and the driving end of the unloading positioning driver is fixedly installed with an unloading positioning baffle that rises and falls in the positioning hole.

8. The double-sided deburring machine for metal pipes according to claim 1, characterized in that: The feeding device includes a feeding conveyor belt and a fixed seat fixed on the feeding conveyor belt, a feeding driver is fixedly installed on the fixed seat, a push plate is fixedly installed on the driving end of the feeding driver, and the push plate pushes the metal pipe fittings on the feeding conveyor belt into the conveying structure.

9. The double-sided deburring machine for metal pipes according to claim 1, characterized in that: A feed guide rail is fixedly mounted on the inner side surface of the side fixing plates of the first chip removing unit and the second chip removing unit, and a feed guide groove is provided on the inner side surface of the feed guide rail.

10. The double-sided deburring machine for metal pipes according to claim 5, characterized in that: The ends of the positive and negative blanking heads are provided with hooks extending upwards.

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