Milling equipment and processing technology

Abstract

The present invention discloses a milling processing equipment and a processing technology thereof, which relate to the field of mechanical processing technology, wherein the milling processing equipment is used to process a workpiece, the workpiece includes a bottom surface and four side surfaces connected to the periphery of the bottom surface, the bottom surface and the side surfaces together enclose a receiving cavity with an opening, the edge of the opening has a step surface, the milling processing equipment includes a machine tool, a clamping component and a milling assembly, the machine tool is provided with a first processing position and a second processing position; the clamping component includes a first fixing assembly and a second fixing assembly, the first fixing assembly is used to clamp the workpiece on opposite sides and make the workpiece located at the first processing position, the second fixing assembly is used to fix the workpiece at the second processing position; the milling assembly is used to perform milling processing on the workpiece. The milling processing equipment provided by the present invention adopts a processing method of changing grinding to milling to improve the processing efficiency of the product while ensuring the fixing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to a milling processing device and a processing technology thereof. Background Art

[0002] There is a workpiece which has a receiving cavity with an opening. The surface where the opening is located is formed with a step surface. The outer wall of the workpiece and the inner wall of the receiving cavity both have a plurality of holes and grooves.

[0003] At present, grinding machines are usually used to process this type of workpiece. The workpiece is fixed by magnetic attraction on the grinding machine, so as to facilitate the processing of its peripheral side and upper opening. However, due to the characteristics of grinding, the processing efficiency is low and a long processing time is required; and the magnetic attraction method to fix the workpiece will result in low fixing position accuracy, which will affect the subsequent processing accuracy. Summary of the invention

[0004] The main purpose of the present invention is to provide a milling processing equipment and a processing technology thereof, aiming to improve the processing efficiency of the product while ensuring the fixed accuracy by adopting a processing method of changing grinding to milling.

[0005] To achieve the above-mentioned purpose, the milling processing equipment proposed in the present invention is used to process a workpiece, wherein the workpiece includes a bottom surface and four side surfaces connected to the periphery of the bottom surface, the bottom surface and the side surfaces together enclose a accommodating cavity with an opening, and the edge of the opening has a step surface. The milling processing equipment includes a machine tool, a clamping component and a milling assembly, and the machine tool is provided with a first processing position and a second processing position; the clamping component includes a first fixing assembly and a second fixing assembly, the first fixing assembly is used to clamp the workpiece on opposite sides and make the workpiece located in the first processing position, and the second fixing assembly is used to fix the workpiece in the second processing position; the milling assembly is used to perform milling processing on the workpiece.

[0006] In one embodiment, the first fixing assembly includes a vise, and two jaws of the vise are used to clamp the workpiece at opposite sides, and the clamping position is close to the bottom surface of the workpiece.

[0007] In one embodiment, two jaws of the vise are each provided with two protrusions at intervals, the four protrusions of the two jaws are located in the same horizontal plane, the four protrusions are used to abut against opposite sides of the workpiece, and the abutting point is close to the bottom surface of the workpiece.

[0008] In one embodiment, the clamping component further includes a cushion block, which is clamped between the two jaws, and the four protrusions are exposed on the cushion block, and the cushion block is used to support the workpiece.

[0009] In one embodiment, the second fixing assembly includes a tooling base plate and a holding member, the tooling base plate is arranged at the second processing position, the opening edge of the workpiece is detachably connected to a surface of the tooling base plate, and the holding member is movably arranged on the machine tool to abut the tooling base plate against the second processing position.

[0010] In one embodiment, a groove is formed on a surface of the tooling bottom plate, and a side surface of the step surface abuts against a groove side wall of the groove.

[0011] In one embodiment, the open edge surface of the workpiece is provided with a plurality of screw holes, the tooling base plate is provided with a plurality of through connection holes, a screw passes through one of the connection holes and is connected to one of the screw holes to fix the workpiece to the tooling base plate.

[0012] In one embodiment, the holding member includes a cylinder driving part and a holding part, the cylinder driving part is arranged on the machine tool, and the driving end of the cylinder driving part drives the holding part to abut the tooling base plate against the second processing position.

[0013] In one embodiment, the number of the second processing positions, the second fixing components and the milling components are all multiple, and the multiple second processing positions are arranged at intervals on the machine tool. Each second fixing component is used to fix a workpiece at a second processing position.

[0014] The present invention also provides a processing technology, which is applied to the milling processing equipment as described above, and comprises the following steps:

[0015] Controlling the first fixing assembly to clamp the two opposite sides of the workpiece and position the workpiece at the first processing position;

[0016] Controlling the milling cutter assembly to form a step on one side of the opening edge of the workpiece;

[0017] Controlling the second fixing assembly to fix the workpiece at the second processing position;

[0018] The milling cutter assembly is controlled to form grooves and / or holes on the inner wall and side surface of the workpiece.

[0019] The technical solution of the present invention adopts a process method of changing grinding to milling. Before the improvement, one operator needs to operate a grinder throughout the whole process. After the improvement, one operator can operate multiple machine tools at the same time, which improves the processing efficiency and obtains better dimensional consistency and appearance quality consistency. It can transform the work that originally relied on the skills of the grinder to be completed by the machine tool, reduce the labor skill requirements of employees, and improve the processing efficiency of the product while ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of an embodiment of a milling processing device provided by the present invention;

[0022] Figure 2 A schematic structural diagram of another embodiment of the milling processing equipment provided by the present invention;

[0023] Figure 3 A schematic structural diagram of another embodiment of the milling processing equipment provided by the present invention;

[0024] Figure 4 A schematic structural diagram of another embodiment of the milling processing equipment provided by the present invention;

[0025] Figure 5 The present invention provides a flowchart of an embodiment of the processing technology.

[0026] Description of Figure Numbers:

[0027] 10. CNC machine tool; 11. vise clamping; 111. jaws; 112. convex point; 113. spacer block; 12. tooling base plate; 121. boss; 13. work station; 14. holding part; 20. workpiece; 21. step surface.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] There is a workpiece which has a receiving cavity with an opening. The surface where the opening is located is formed with a step surface. The outer wall of the workpiece and the inner wall of the receiving cavity both have a plurality of holes and grooves.

[0033] At present, grinding machines are usually used to process this type of workpiece. The workpiece is fixed by magnetic attraction on the grinding machine, so as to facilitate the processing of its peripheral side and upper opening. However, due to the characteristics of grinding, the processing efficiency is low and a long processing time is required; and the magnetic attraction method to fix the workpiece will result in low fixing position accuracy, which will affect the subsequent processing accuracy.

[0034] The present invention provides a milling processing device and a processing technology thereof, aiming to improve the processing efficiency of the product while ensuring the fixed accuracy by adopting a processing method of changing grinding to milling.

[0035] See also Figures 1 to 4 In one embodiment of the present invention, a milling processing device is used to process a workpiece 20, the workpiece 20 includes a bottom surface and four side surfaces connected to the periphery of the bottom surface, the bottom surface and the side surfaces together enclose a receiving cavity with an opening, and the edge of the opening has a step surface 21, the milling processing device includes a machine tool, a clamping component and a milling assembly, the machine tool is provided with a first processing position 13 and a second processing position 13; the clamping component includes a first fixing assembly and a second fixing assembly, the first fixing assembly is used to clamp the workpiece 20 at two opposite sides and make the workpiece 20 located at the first processing position 13, the second fixing assembly is used to fix the workpiece 20 at the second processing position 13; the milling assembly is used to perform milling processing on the workpiece 20.

[0036] In this embodiment, the milling processing equipment includes a machine tool, a clamping component and a milling assembly. The machine tool serves as a base for carrying the clamping component and the milling assembly. Its material should be a metal material with good load-bearing performance, such as stainless steel, etc. Its shape can be a frame type, which can meet the subsequent modification needs. The clamping component includes a first fixing component and a second fixing component. The first fixing component is used to clamp the opposite sides of the workpiece 20 at the first processing position 13, so that the milling cutter assembly processes the opening edge of the workpiece 20 to form a step surface 21. The first fixing component can adopt a common clamping fixing component, such as a vise clamp 11 or a clamping claw cylinder, etc., which is not further limited here. The second fixing component is used to fix the workpiece 20 on the second processing position 13, so that the milling cutter assembly can perform milling processing on the inner and outer side walls of the workpiece 20 to form structures such as grooves or holes. The second fixing component can also adopt a cylinder clamp or a pressure plate and other structures, as long as the workpiece 20 can be limited to the second processing position 13, which is not further limited here. The milling cutter assembly is a common milling cutter assembly on the market, such as a flying cutter disc or a cutting edge.

[0037] The box-shaped workpiece 20 is set on the first processing position 13 through the first fixing component, and the milling cutter component is controlled to process an edge of the opening of the workpiece 20 to form a step surface 21. The workpiece 20 with the step surface 21 is then transferred to the second processing position 13, and the workpiece 20 is fixed to the second processing position 13 through the second fixing component. The milling cutter assembly is controlled to process the outer wall and inner wall of the workpiece 20 to form structures such as grooves or holes. At this point, the processing procedure of a workpiece 20 is completed to obtain the desired product shape.

[0038] The technical solution of the present invention adopts a process method of changing grinding to milling. Before the improvement, one operator needs to operate a grinder throughout the whole process. After the improvement, one operator can operate multiple machine tools at the same time, which improves the processing efficiency and obtains better dimensional consistency and appearance quality consistency. It can transform the work that originally relied on the skills of the grinder to be completed by the machine tool, reduce the labor skill requirements of employees, and improve the processing efficiency of the product while ensuring the quality of the product.

[0039] In an embodiment of the present invention, the first fixing assembly includes a vise, and the two jaws 111 of the vise are used to clamp the workpiece 20 at opposite sides, and the clamping position is close to the bottom surface of the workpiece 20 .

[0040] In this embodiment, a vise is used as the first fixing component. The vise can provide stable fixation to ensure that the workpiece 20 does not move or vibrate during the processing, and prevent the problem of poor precision caused by the movement of the workpiece 20 during processing. The vise can ensure that the workpiece 20 maintains the same position during multiple clamping. For a batch of workpieces 20, the product precision within the batch can be improved, and better dimensional consistency and appearance quality consistency can be obtained. The two jaws 111 of the vise are clamped on the opposite sides of the workpiece 20, and the workpiece 20 is clamped close to the bottom surface of the workpiece 20. Since the workpiece 20 is box-shaped and the bottom surface strength is relatively high, clamping on the opposite sides of the bottom surface can minimize the deformation of the workpiece 20, thereby improving the processing accuracy of the workpiece 20.

[0041] In an embodiment of the present invention, the two jaws 111 of the vise are each provided with two protrusions 112 at intervals, and the four protrusions 112 of the two jaws 111 are located in the same horizontal plane. The four protrusions 112 are used to abut the opposite sides of the workpiece 20, and the abutting point is close to the bottom surface of the workpiece 20.

[0042] In this embodiment, each jaw 111 of the vise is provided with two convex points 112 arranged at intervals, the interval between the two convex points 112 on one jaw 111 is the same as the interval between the two convex points 112 on the other jaw 111, and they correspond one to one, and the four convex points 112 are located on the same horizontal plane. When the four convex points 112 abut against the outer wall of the workpiece 20, the overall force of the workpiece 20 is balanced, and the workpiece 20 will not deform. The abutment between the convex points 112 and the workpiece 20 is close to the bottom surface of the workpiece 20, and it is best to directly abut on the opposite sides of the bottom surface of the workpiece 20. Since the workpiece 20 is box-shaped and has a high bottom surface strength, clamping on the opposite sides of the bottom surface can minimize the deformation of the workpiece 20, thereby improving the processing accuracy of the workpiece 20. Compared with clamping the workpiece 20 by two surfaces in contact, it is necessary to ensure that the flatness of the two surfaces is high enough to achieve full contact and clamping of the workpiece 20 with a smaller force. If the flatness of the two surfaces is not enough, a larger pre-tightening force is required to clamp the workpiece 20, which will cause deformation of the workpiece 20 and affect the processing accuracy of the workpiece 20. In a preferred embodiment, the number of protrusions 112 on each jaw 111 is at least three, which can make the clamping of the workpiece 20 more stable.

[0043] In an embodiment of the present invention, the clamping component further includes a cushion block 113 . The cushion block 113 is clamped between the two jaws 111 . The four protrusions 112 are exposed on the cushion block 113 . The cushion block 113 is used to support the workpiece 20 .

[0044] In this embodiment, the clamping component is further provided with a pad 113 for carrying the workpiece 20, which can provide bearing force for the workpiece 20, make the workpiece 20 more stable, and thus improve the processing accuracy of the workpiece 20. The pad 113 is rectangular in shape, can be clamped between the two jaws 111, and support the bottom surface of the workpiece 20 through the upper surface. When the pad 113 is clamped between the two jaws 111, the four protrusions 112 are exposed outside the pad 113, and the four protrusions 112 can directly abut on the opposite sides of the bottom surface of the workpiece 20, thereby minimizing the occurrence of deformation problems of the workpiece 20 during clamping.

[0045] In an embodiment of the present invention, the second fixing component includes a tooling base plate 12 and a holding member 14. The tooling base plate 12 is arranged at the second processing position 13. The opening edge of the workpiece 20 is detachably connected to a surface of the tooling base plate 12. The holding member 14 is movably arranged on the machine tool and abuts the tooling base plate 12 against the second processing position 13.

[0046] In this embodiment, the tooling base plate 12 is made of metal, such as stainless steel or aluminum alloy. The opening edge of the workpiece 20 is first detachably connected to a surface of the tooling base plate 12, and then the tooling base plate 12 is abutted against the second processing position 13 by the holding member 14, so as to limit the workpiece 20 to the second processing position 13 for subsequent milling process. The holding member 14 can be a pressure plate structure. The size of the tooling base plate 12 is larger than the size of the opening of the workpiece 20. When the workpiece 20 is detachably connected to the tooling base plate 12, both sides of the tooling base plate 12 are exposed outside the workpiece 20, and the pressure plate can be pressed on both sides of the tooling base plate 12 to fix the tooling base plate 12 on the second processing position 13.

[0047] In the embodiment of the present invention, a surface of the tooling bottom plate 12 is provided with a groove, and a side surface of the step surface 21 abuts against a side wall of the groove.

[0048] In this embodiment, a groove is provided on the surface of the tooling base plate 12, and the size of the step surface 21 at the opening of the workpiece 20 matches the size of the groove. When one side of the step surface 21 of the workpiece 20 abuts against a side wall of the groove, the rest of the opening of the workpiece 20 is seamlessly fitted with the rest of the tooling base plate 12, making the connection between the workpiece 20 and the tooling base plate 12 more stable.

[0049] In an embodiment of the present invention, a plurality of screw holes are provided on the opening edge surface of the workpiece 20, and a plurality of through connection holes are provided on the tooling base plate 12. A screw passes through a connection hole and is connected to a screw hole to fix the workpiece 20 to the tooling base plate 12.

[0050] In this embodiment, the detachable connection between the opening of the workpiece 20 and the tooling base plate 12 is achieved by screws passing through the connecting holes on the tooling base plate 12 and being locked in the screw holes at the edges of the opening of the workpiece 20, thereby locking the opening of the workpiece 20 and the tooling base plate 12 into one.

[0051] In an embodiment of the present invention, the holding member 14 includes a cylinder driving part and a holding part. The cylinder driving part is arranged on the machine tool. The driving end of the cylinder driving part drives the holding part to abut the tooling base plate 12 against the second processing position 13 .

[0052] In this embodiment, the holding member 14 includes a cylinder driving part and a holding part. The holding part can move in the vertical direction relative to the surface of the second processing position 13 under the drive of the cylinder driving part, thereby pressing the tooling base plate 12 against the second processing position 13, and finally achieving the effect of setting the workpiece 20 at the second processing position 13 for subsequent milling processing. The cylinder drive can realize the automation of the holding member 14, reducing the workload of the operator.

[0053] In an embodiment of the present invention, there are multiple second processing positions 13 , second fixing components and milling components. Multiple second processing positions 13 are arranged at intervals on the machine tool, and each second fixing component is used to fix a workpiece 20 at a second processing position 13 .

[0054] In this embodiment, the machine tool is provided with multiple second processing positions 13, and correspondingly, the number of second fixing components and milling components is also multiple. At the same time, multiple workpieces 20 are fixed on multiple second processing positions 13 through multiple second fixing components, and multiple milling cutter components are controlled to process multiple workpieces 20 at the same time, thereby further improving the processing efficiency of the workpiece 20.

[0055] Please refer to Figure 5 The present invention also proposes a processing technology, which is applied to the milling processing equipment as described above, comprising the following steps:

[0056] Step S1: Control the first fixing assembly to clamp the two opposite sides of the workpiece 20 and place the workpiece 20 at the first processing position 13;

[0057] Step S2: Control the milling cutter assembly to form a step surface 21 on one side of the opening edge of the workpiece 20;

[0058] Step S3: Control the second fixing assembly to fix the workpiece 20 at the second processing position 13;

[0059] Step S4 : Controlling the milling cutter assembly to form grooves and / or holes on the inner wall and side surface of the workpiece 20 .

[0060] In this embodiment, the workpiece 20 is first clamped by the first fixing component, and the workpiece 20 is positioned at the first processing position 13, and the milling cutter component is controlled to process the opening surface of the workpiece 20 to form a step surface 21. Prioritizing the processing of the step surface 21 is based on the principle of the order of rough and fine processing, because the shape and position tolerances of the step surface 21 are relatively high. If the step surface 21 is clamped and processed later, it may be clamped and deformed, and processing stress and other factors may affect the shape and position tolerances of fine processing. After processing the step surface 21, the second fixing component is controlled to fix the workpiece 20 on the second processing position 13, and the milling cutter component is controlled to process the inner wall and outer wall of the workpiece 20. The inner wall is processed by a flying cutter disc, and the surrounding side walls are processed by a side edge milling cutter to form grooves or holes to form the final product.

[0061] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A milling processing device for processing a workpiece, wherein the workpiece comprises a bottom surface and four side surfaces connected to the periphery of the bottom surface, wherein the bottom surface and the side surfaces together enclose a receiving cavity having an opening, wherein the edge of the opening has a step surface, wherein: The milling processing equipment comprises: A machine tool, wherein the machine tool is provided with a first processing position and a second processing position; A clamping component, the clamping component comprising a first fixing component and a second fixing component, the first fixing component is used to clamp the workpiece at two opposite sides and place the workpiece at the first processing position, and the second fixing component is used to fix the workpiece at the second processing position; and A milling assembly is used to perform milling processing on the workpiece.

2. The milling processing equipment according to claim 1, characterized in that: The first fixing assembly comprises a vise, and two jaws of the vise are used to clamp the workpiece at opposite sides, and the clamping position is close to the bottom surface of the workpiece.

3. The milling processing equipment according to claim 2, characterized in that: The two jaws of the vise are each provided with two convex points at intervals, the four convex points of the two jaws are located in the same horizontal plane, the four convex points are used to abut the opposite sides of the workpiece, and the abutting point is close to the bottom surface of the workpiece.

4. The milling processing equipment according to claim 3, characterized in that: The clamping component also includes a cushion block, which is clamped between the two jaws, and the four protrusions are exposed on the cushion block, and the cushion block is used to support the workpiece.

5. The milling processing equipment according to any one of claims 1 to 4, characterized in that: The second fixing assembly includes a tooling base plate and a holding member, the tooling base plate is arranged at the second processing position, the opening edge of the workpiece is detachably connected to a surface of the tooling base plate, and the holding member is movably arranged on the machine tool and abuts the tooling base plate against the second processing position.

6. The milling processing equipment according to claim 5, characterized in that: A groove is formed on a surface of the tooling bottom plate, and a side surface of the step surface abuts against a groove side wall of the groove.

7. The milling processing equipment according to claim 5, characterized in that: The opening edge surface of the workpiece is provided with a plurality of screw holes, and the tooling bottom plate is provided with a plurality of through connection holes. A screw passes through a connection hole and is connected in a screw hole to fix the workpiece to the tooling bottom plate.

8. The milling processing equipment according to claim 5, characterized in that: The holding member comprises a cylinder driving part and a holding part. The cylinder driving part is arranged on the machine tool. The driving end of the cylinder driving part drives the holding part to make the tooling base plate abut against the second processing position.

9. The milling processing equipment according to claim 5, characterized in that: The number of the second processing positions, the second fixing components and the milling components are all multiple, and the multiple second processing positions are arranged on the machine tool at intervals, and each second fixing component is used to fix a workpiece at a second processing position.

10. A processing technology applied to the milling processing equipment as described in any one of 1 to 9, characterized in that: The processing technology comprises the following steps: Controlling the first fixing assembly to clamp the two opposite sides of the workpiece and position the workpiece at the first processing position; Controlling the milling cutter assembly to form a step on one side of the opening edge of the workpiece; Controlling the second fixing assembly to fix the workpiece at the second processing position; The milling cutter assembly is controlled to form grooves and / or holes on the inner wall and side of the workpiece.

Images