CN114260728B - Processing tool, processing system and processing method of handle part - Google Patents

Abstract

The invention discloses a processing tool for a handle part, which comprises a bottom plate, a positioning plate and a part clamp, wherein a first positioning surface is arranged on the upper surface of one side of the bottom plate; the part clamp is arranged on one side of the bottom plate far away from the first positioning surface and is used for connecting the tail end of the handle part blank. This processing frock structural design is ingenious novel, carries out the wainscot through setting up the curb plate that first location facing handle opening needs processing screw hole and supports, sets up the curb plate that second location facing handle opening needs processing through-hole and carries out wainscot and support, can effectively solve directly punching at handle open-ended curb plate and lead to the curb plate to warp the problem of subsideing. The invention further provides a processing system and a processing method of the handle part, which can ensure the processing size of the handle part blank on the premise of ensuring the positioning reliability of the tool, improve the processing efficiency and reduce the production cost.

Description

Processing tool, processing system and processing method of handle part

Technical Field

The invention relates to the technical field of handle part machining, in particular to a handle part machining tool, a handle part machining system and a handle part machining method.

Background

As shown in fig. 1, a handle part blank 1 to be processed is generally made of metal, such as stainless steel 304, and the handle part blank is usually precisely cast by silica sol and is produced in batch. The handle part blank 1 comprises a first opening side plate 1-1 and a second opening side plate 1-2, a handle opening 1-5 is formed between the first opening side plate 1-1 and the second opening side plate 1-2, one of the first opening side plate 1-1 and the second opening side plate 1-2 needs to be provided with a through hole 1-3, the other needs to be provided with a threaded hole 1-4, the through hole 1-3 and the threaded hole 1-4 need to be coaxial, and the aperture of the through hole 1-3 is larger than the inner diameter of the threaded hole 1-4. The coaxiality of the through holes 1-3 and the threaded holes 1-4, the distance value from the axis of the through holes 1-3 to the bottom end of the handle opening, the size of the through holes 1-3 and the size of the threaded holes 1-4 are all important handle part machining sizes.

Through analysis of the drawing, the product (i.e. the handle part blank 1 shown in fig. 1) has two main processing difficulties: firstly, the first opening side plate 1-1 and the second opening side plate 1-2 are of thin wall structures, if the through holes 1-3 and the threaded holes 1-4 are directly processed, the first opening side plate 1-1 and/or the second opening side plate 1-2 of a blank can be deformed, the opening size of a handle part is changed, and the part cannot be used; secondly, the distance value from the axis of the through hole 1-3 (or the axis of the threaded hole 1-4) to the bottom end of the handle opening is the size of the blank for processing, and the bottom end of the handle opening is of a cast round corner structure, so that the distance value from the axis of the through hole 1-3 (or the axis of the threaded hole 1-4) to the bottom end of the handle opening is caused, and the dimensional accuracy is not well controlled during processing. In addition, in terms of equipment, the handle part blank 1 shown in fig. 1 is usually processed by adopting a four-axis mode of a processing center, and the handle part blank rotates repeatedly, so that the auxiliary working time is long, the processing efficiency is low, and the cost is high.

In view of the foregoing, there is a need for a new machining scheme for a handle part blank 1 that does not deform the machined part.

Disclosure of Invention

The invention aims to provide a processing tool for a handle part, which solves the problem of deformation of an opening of the handle part in the existing handle part processing method.

In order to achieve the above object, the present invention provides the following solutions:

the invention provides a processing tool for a handle part, which comprises the following components:

the upper surface of one side of the bottom plate is provided with a first positioning surface;

the positioning plate is arranged on the bottom plate; the positioning plate is positioned above the first positioning surface and is arranged at intervals with the first positioning surface, and a second positioning surface is arranged on the upper surface of the positioning plate; the positioning plate is used for sleeving a handle opening of a handle part blank, wherein a side plate of the handle opening, which is required to be provided with a threaded hole, is positioned between the positioning plate and the first positioning surface and is supported by the first positioning surface in a veneering manner; the side plate of the handle opening, which is required to be provided with a through hole, is positioned above the positioning plate and is supported by the second positioning surface;

the part clamp is arranged on one side, far away from the first positioning surface, of the bottom plate and is used for connecting the tail end of the handle part blank so as to fix the handle part blank between the positioning plate and the part clamp.

Optionally, a third positioning surface is arranged on one side of the positioning plate, which is close to the part clamp; the third positioning surface is an outer convex arc surface which can be attached to the round corner structure at the bottom end of the handle opening.

Optionally, a plurality of positioning protruding blocks are arranged on the positioning plate at intervals, and a handle sleeving clamping groove is formed between any two adjacent positioning protruding blocks; any one of the handle sleeve clamping positions is provided with one part clamp.

Optionally, a fourth positioning surface is arranged on one side or two sides of any one of the positioning convex blocks, a V-shaped handle sleeving clamping groove is formed between any two adjacent fourth positioning surfaces, and the big end of any one of the V-shaped handle sleeving clamping grooves faces the part clamp; any one of the V-shaped handles is sleeved with two fourth positioning surfaces of the clamping groove, and the fourth positioning surfaces can be respectively attached to two side surfaces of a side plate of the handle opening, which is required to be provided with a through hole.

Optionally, the upper surface of bottom plate is the step face, set up on the highest step face of step face first locating surface, set up on the lowest step face of step face the part anchor clamps.

Optionally, a boss is disposed on a side of a highest step surface of the step surface, which is close to the part fixture, and the upper surface of the boss is provided with the first positioning surface and a plurality of cushion blocks, and the cushion blocks are used for supporting and installing the positioning plate.

Optionally, the step surface is a third-order step surface.

Optionally, a plurality of limiting blocks are arranged on one side, far away from the part clamp, of the highest step surface of the step surface, the limiting blocks are higher than the boss, and guide grooves are formed between adjacent limiting blocks; the guide groove is obliquely downwards arranged in a direction away from the boss;

a chip removal groove communicated with the guide groove is formed in one side, away from the part clamp, of the boss; the chip removal groove is located at the opening position of the threaded hole in the handle opening.

Optionally, the small end of any V-shaped handle sleeve clamping groove is provided with an avoidance groove aligned with the chip groove, and the avoidance groove is used for allowing a drill bit to pass through and discharging chips formed during processing the through hole to the guide groove.

It is still another object of the present invention to provide a system for processing a handle part, which solves the problems of easy deformation, low processing efficiency and high cost of the existing handle part processing. To achieve this object, the invention provides a system for machining a handle part comprising a machining center for machining the handle part blank and a machining fixture for a handle part as described above.

Optionally, the machining center is a triaxial machining center.

It is still another object of the present invention to provide a method for machining a handle part, which solves the problems of easy deformation, low machining efficiency and high cost of the existing handle part machining. In order to achieve the purpose, the invention provides a processing method of a handle part, which is implemented by adopting the processing tool of the handle part and comprises the following steps:

the method comprises the steps that a handle part blank to be processed is mounted on a processing tool of the handle part, the tail end of the handle part blank is matched with a part clamp, a handle opening is sleeved on a positioning plate, a side plate of a threaded hole to be processed of the handle opening is positioned between the positioning plate and a first positioning surface and is supported by the first positioning surface in a veneering manner, and a side plate of a through hole to be processed of the handle opening is positioned above the positioning plate and is supported by a second positioning surface in a veneering manner;

processing the through hole on a side plate of the handle opening, which is required to be processed with the through hole;

and machining the threaded hole on a side plate of the threaded hole to be machined of the handle opening downwards along the through hole.

Compared with the prior art, the invention has the following technical effects:

the processing tool for the handle part is ingenious and novel in structural design, and can effectively solve the problems of deformation and collapse of the side plate caused by directly punching the side plate of the handle opening by arranging the first positioning surface to face the side plate of the handle opening, which is required to be provided with the threaded hole, for carrying out facing support and arranging the second positioning surface to face the side plate of the handle opening, which is required to be provided with the through hole.

In some technical schemes disclosed by the invention, based on the principle of measuring which block and positioning, a third positioning surface is arranged on the positioning plate, the third positioning surface is an outer convex arc surface which can be attached to a round corner structure at the bottom end of the handle opening, after the handle opening is sleeved on the positioning plate, the round corner structure at the bottom end of the handle opening can be positioned and supported through the third positioning surface, and then the drilling center point is marked on a side plate of a through hole to be processed according to a preset distance value from the axis of the through hole to the bottom end of the handle opening.

In some technical schemes disclosed by the invention, a plurality of V-shaped handle sleeving clamping grooves are formed in the positioning plate, and any V-shaped handle sleeving clamping groove can limit a side plate of a through hole to be machined simultaneously from two sides and the bottom, so that a multi-station clamping handle part blank can be realized on the premise of ensuring reliable positioning of a fixture, the machining size of the handle part blank can be ensured, a plurality of handle part blanks can be clamped at the same time, and the purposes of improving efficiency and reducing cost are achieved by one-time machining; meanwhile, the multi-station (namely clamping groove) is arranged, so that the tool changing times of equipment can be reduced, and the idle running time of a machine tool can be shortened.

The processing system for the handle part provided by the invention utilizes the triaxial processing center to process the through hole and the threaded hole, so that the condition that the four shafts of the four-shaft processing center repeatedly rotate to waste working hours can be avoided, the processing efficiency is improved, and the production cost is reduced.

The processing method of the handle part is implemented by adopting the processing tool of the handle part, the through hole with larger aperture is processed firstly according to the principle of big and small, then the position of the handle part blank is kept unchanged, the processed through hole is used for processing the threaded hole downwards, thus the through hole and the threaded hole can be processed through one procedure, the processing size of the handle part blank can be ensured on the premise of ensuring the reliable positioning of the tool, the processing efficiency is improved, and the production cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a handle part blank according to an embodiment of the present invention;

FIG. 2 is a top view of a handle part blank according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of the handle part blank of FIG. 2 taken along line A-A;

FIG. 4 is a schematic diagram of the overall structure of a tool for machining a handle part according to an embodiment of the present invention;

FIG. 5 is a schematic view of a structure of a base plate according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a positioning plate according to an embodiment of the present invention;

FIG. 7 is a top view of a locating plate according to an embodiment of the present invention;

FIG. 8 is a front view of a locating plate according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a partial structure of a positioning plate according to an embodiment of the present invention;

fig. 10 is a schematic view illustrating installation of a positioning plate according to an embodiment of the present invention.

Wherein, the reference numerals are as follows: 100. machining tools for handle parts;

1. a handle part blank; 1-1, a first opening side plate; 1-2, a second opening side plate; 1-3, through holes; 1-4, threaded holes; 1-5, a handle opening;

2. a bottom plate; 3. a first positioning surface; 4. a positioning plate; 5. a second positioning surface; 6. a part clamp; 7. a third positioning surface; 8. positioning the protruding blocks; 9. a fourth locating surface; 10. the V-shaped handle is sleeved with a clamping groove; 11. a boss; 12. a cushion block; 13. a limiting block; 14. a guide groove; 15. a chip removal groove; 16. a screw; 17. a bolt; 18. bolt holes; 19. a positioning plate bottom plate; 20. avoiding the groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention aims to provide a processing tool for a handle part, which mainly solves the problem of deformation of an opening of the handle part in the existing handle part processing method.

The invention also aims to provide a processing system of the handle part, which solves the problems of easy deformation, low processing efficiency and high cost of the existing handle part processing.

Still another object of the present invention is to provide a method for machining a handle part, so as to solve the problems of easy deformation, low machining efficiency and high cost in the existing handle part machining.

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.

Example 1

As shown in fig. 4, the present embodiment provides a processing tool 100 for a handle part, which mainly includes a base plate 2, a positioning plate 4 and a part fixture 6, wherein a first positioning surface 3 is disposed on an upper surface of one side of the base plate 2; the positioning plate 4 is arranged on the bottom plate 2; the positioning plate 4 is positioned above the first positioning surface 3 and is arranged at intervals with the first positioning surface 3, and a second positioning surface 5 is arranged on the upper surface of the positioning plate 4; the positioning plate 4 is used for sleeving the handle opening 1-5 of the handle part blank 1, wherein a side plate (namely a second opening side plate 1-2 shown in fig. 1) of the handle opening 1-5, which is required to be provided with the threaded hole 1-4, is positioned between the positioning plate 4 and the first positioning surface 3, and the bottom surface of the side plate (namely the second opening side plate 1-2 shown in fig. 1) is subjected to veneering support by the first positioning surface 3; the side plate (namely the first opening side plate 1-1 shown in figure 1) of the handle opening 1-5, which is required to be processed with the through hole 1-3, is positioned above the positioning plate 4 and is supported by the second positioning surface 5 to the bottom surface veneer of the side plate (namely the first opening side plate 1-1 shown in figure 1); it should be noted that, since the handle part blank 1 stands on its side during processing, as shown in fig. 1, 3 and 4, the bottom surface of the side plate (i.e., the second opening side plate 1-2 shown in fig. 1) to be processed with the threaded hole 1-4 specifically refers to the side of the side plate facing away from the handle opening 1-5; the bottom plate of the side plate (i.e., the first opening side plate 1-1 shown in fig. 1) on which the through holes 1-3 are to be formed is specifically referred to as the side of the side plate located in the handle opening 1-5. The part clamp 6 is arranged on one side of the bottom plate 2 far away from the first positioning surface 3, and the part clamp 6 is used for connecting the tail end of the handle part blank 1 so as to fix the handle part blank 1 between the positioning plate 4 and the part clamp 6. The end of the handle part blank 1 is opposite to the handle opening 1-5, the handle opening 1-5 is used as the head end of the handle part, and the end of the handle part blank 1 away from the handle opening 1-5 is called as the "tail end".

In the embodiment, a third positioning surface 7 is arranged on one side of the positioning plate 4, which is close to the part clamp 6; the third positioning surface 7 is an outer convex arc surface which can be attached to the round corner structure at the bottom end of the handle opening 1-5. During processing, the round corner structure at the bottom end of the handle opening 1-5 is attached to the convex arc surface, and the convex arc surface is used for positioning the round corner structure.

In the embodiment, a plurality of positioning convex blocks 8 are arranged on the positioning plate 4 at intervals, and a handle sleeving clamping groove is formed between any two adjacent positioning convex blocks 8; a part clamp 6 is arranged at any handle sleeving clamping position. The positioning plate 4 is provided with a plurality of handle sleeve clamping slots, so that a plurality of handle part blanks 1 can be clamped simultaneously, and the effect of processing a plurality of handle part blanks 1 at one time is realized. As a preferred mode, the fourth positioning surfaces 9 are arranged on one side or two sides of any positioning projection 8, and in view of the fact that the first opening side plate 1-1 and the second opening side plate 1-2 of the handle part blank 1 are generally conical in shape towards the opening direction of the handle, a V-shaped handle sleeving clamping groove 10 is formed between any two adjacent fourth positioning surfaces 9, and the big end of any V-shaped handle sleeving clamping groove 10 faces the part clamp 6, so that the two fourth positioning surfaces 9 of any V-shaped handle sleeving clamping groove 10 can be respectively attached to and positioned on two side surfaces of the side plate (namely the first opening side plate 1-1) of the handle opening 1-5, which is required to be provided with the through hole 1-3. In actual operation, the size of the V-shaped handle sleeve clamping groove 10 is designed and manufactured according to the thickness outline size of the handle part blank 1, and the fourth positioning surface 9 is in clearance fit with the side surface of the side plate (namely the first opening side plate 1-1) of the through hole 1-3 to be processed, so that the handle part blank 1 to be processed is conveniently put in and taken out of the handle part blank 1 after being processed, and the positioning effect on the side plate (namely the first opening side plate 1-1) of the through hole 1-3 to be processed can be ensured.

In this embodiment, as shown in fig. 5 and 10, the upper surface of the base plate 2 is a step surface, the highest step surface of the step surface is provided with the first positioning surface 3, and the lowest step surface of the step surface is provided with the part fixture 6. Preferably, a boss 11 is arranged on one side, close to the part clamp 6, of the highest-order surface of the step surface, a first positioning surface 3 and a plurality of cushion blocks 12 are arranged on the upper surface of the boss 11, the cushion blocks 12 are higher than the first positioning surface 3 and used for supporting and installing the positioning plate 4, and the cushion blocks 12 play a role in spacing the positioning plate 4 from the first positioning surface 3. Preferably, the upper surface of the bottom plate 2 is provided with a third-step surface, the highest-step surface of the third-step surface is provided with the first positioning surface 3, and the lowest-step surface of the third-step surface is provided with the part clamp 6.

In this embodiment, as shown in fig. 5, a plurality of limiting blocks 13 are disposed on one side of the highest step surface of the bottom plate 2, which is far away from the part fixture 6, the limiting blocks 13 are higher than the boss 11, and guide grooves 14 are formed between adjacent limiting blocks 13; the guide groove 14 is lower than the first positioning surface 3, and the guide groove 14 is obliquely downwards arranged in a direction away from the boss 11 to form a rear inclined surface; the side of the boss 11, which is far away from the part holder 6, is provided with a junk slot 15 in communication with the guide slot 14, the junk slot 15 being located at the opening position of the threaded hole 1-4 in the handle opening 1-5. The chip groove 15 is a notch at the rear side of the boss 11, the top end of the chip groove is connected with the first positioning surface 3, the bottom end of the chip groove is connected with the guide groove 14, the notch is communicated with the guide groove 14, and chips formed during drilling of the through holes 1-3 and the threaded holes 1-4 can be smoothly discharged out of the bottom plate 2 through the chip groove 15 and the guide groove 14 in sequence.

In this embodiment, as shown in fig. 6 and 7, the small end of any V-shaped handle sleeve clamping slot 10 is provided with a avoiding slot 20 aligned with the chip removing slot 15, and the avoiding slot 20 is used for allowing a drill for processing the through hole 1-3 and a tapping drill for processing the threaded hole 1-4 to pass through, and discharging metal scraps formed during drilling the through hole 1-3 to the guide slot 14. As a preferred mode, the avoidance groove 20 and the chip removal groove 15 are semicircular openings coaxially arranged, the radius of the avoidance groove 20 is larger than that of the chip removal groove 15, the radius of the avoidance groove 20 is larger than that of the through hole 1-3, and the groove wall of the avoidance groove 20 is positioned at the outer ring of the through hole 1-3 so as to completely avoid the processing area of the through hole 1-3.

In actual operation, the outer side surfaces of the side plates at the two sides of the handle opening 1-5 of the handle part blank 1 are in an inclined surface structure, for example, one side of the second opening side plate 1-2, which is far away from the handle opening 1-5, is in an inclined surface structure, and in order to better support the second opening side plate 1-2 by facing, the first positioning surface 3 is set to be an inclined surface positioning surface, and the inclined direction of the inclined surface positioning surface is exactly opposite to the inclined direction of the guide groove 14. The second positioning surface 5 is configured to have a planar structure, and the positioning plate 4 is typically configured to have a flat plate structure with a uniform thickness, because both sides of the handle opening 1-5 are planar, such as the side of the first opening side plate 1-1 located in the handle opening 1-5. The height between the second positioning surface 5 and the first positioning surface 3 is determined by the height between the upper surface of the handle opening 1-5 (i.e. the side surface of the first opening side plate 1-1 located in the handle opening 1-5) and the bottom surface of the handle (i.e. the side surface of the second opening side plate 1-2 facing away from the handle opening 1-5), and the second positioning surface 5 and the first positioning surface 3 are respectively milled and formed in the manufacturing process of the tool. The limiting block 13, the cushion block 12, the boss 11 and the bottom plate 2 are preferably integrally formed, and the limiting block 13 is used for limiting the installation and movement of the positioning plate 4. The positioning plate 4 is then preferably fastened to the spacer 12 of the base plate 2 by means of screws 16.

In this embodiment, the part fixture 6 is a conventional quick-tightening fixture, such as a workpiece fixing clamp-pushing rod type pusher (also called a "push-pull quick fixture"), which can be fixed on the base plate 2 by bolts 17. When the handle opening 1-5 is sleeved on the positioning plate 4, the quick clamp is moved to press the tail end of the handle part blank 1 so that the handle part blank 1 is fixed between the part clamp 6 and the positioning plate 4; the handle part blank 1 can be loosened by reversely moving the quick clamp, and the handle part blank 1 can be taken out from the positioning plate 4 at the moment, so that the operation is convenient and the clamping is reliable. In actual operation, the part fixture 6 may also adopt other types of tightening structures, which will not be described in detail.

The processing tool 100 for a handle part of the present embodiment will be specifically described below taking the handle part blank 1 of the size shown in fig. 3 as an example. Wherein, the handle part blank 1 is made of stainless steel 304, is precisely cast by silica sol, and has the following processing dimensions: the aperture of the through hole 1-3 is phi 6.2+/-0.05, the threaded hole 1-4 adopts M5 threads, the coaxiality of the through hole 1-3 and the threaded hole 1-4 is 0.2mm, the distance from the axis of the through hole 1-3 (or the axis of the threaded hole 1-4) to the bottom end of the handle opening is 41.70+/-0.15, the bottom end of the handle opening 1-5 is formed by transitional connection of an R22 (namely, the radius is 22) cast fillet and an R7 (namely, the radius is 7) cast fillet, and the structure and the size of the third positioning surface 7 are manufactured according to the R22 cast fillet and the R7 cast fillet design. Through analysis drawing, the handle part blank 1 has two processing difficulties: 41.70+/-0.15, which is a machining factor for the blank size, and the size precision is not well controlled; secondly, the first opening side plate 1-1 and the second opening side plate 1-2 are of thin-wall structures, if the through holes 1-3 and M5 threads with phi of 6.2 are directly processed, blank collapse deformation can be caused, the size of an opening of a part is changed, and the part cannot be used.

The actual operation can be achieved by machining the through-holes 1-3 and the threaded holes 1-4 to indirectly ensure this dimension of 41.70 +/-0.15. During processing, the handle opening 1-5 of the handle part blank 1 is inserted into the positioning plate 4 along the V-shaped handle sleeving clamping groove 10, then the handle of the part clamp 6 is moved, and the handle part blank 1 is tightly propped, so that the R22 cast round corners and the R7 cast round corners at the bottom ends of the handle opening 1-5 are ensured to be completely pressed on the third positioning surface 7, and the aim of rapid clamping is achieved. After the clamping of the handle is completed, the processing is started. If the triaxial machining center is used for machining, the through hole 1-3 with the diameter of 6.2 can be machined firstly according to the principle of big first and small second, then the tool is replaced, M5 tapping is carried out downwards through the through hole 1-3, and thus the through hole 1-3 and the threaded hole 1-4 can be machined simultaneously in one process. The processing process utilizes the handle opening position support, namely the height dimension (namely the thickness of the locating plate 4) between the second locating surface 5 and the locating plate bottom surface 19 (namely the locating plate bottom surface 19 is the bottom surface of the locating plate 4) to design and manufacture according to the dimension of the handle opening 1-5, generally, the opening width of the handle opening 1-5 (namely the distance between the first opening side plate 1-1 and the second opening side plate 1-2) is slightly larger than the thickness of the locating plate 4, when the bottom surface of the first opening side plate 1-1 is attached to the second locating surface 5, the bottom surface of the second opening side plate 1-2 is just attached to the bottom surface of the first locating surface 3, so that when the handle opening 1-5 is sleeved on the locating plate 4, the first opening side plate 1-1 and the second opening side plate 1-2 are structurally supported, and the problem of thin wall deformation is solved by punching operation on the basis.

Regarding the dimension 41.70+/-0.15, in order to process and control the dimension of the blank, the embodiment adopts the principle of measuring which piece and using which positioning, and a third positioning surface 7 is arranged on the positioning plate 4, and is designed according to the casting round angle of the handle dimension R22 and the casting round angle of the R7, so that the dimension is consistent with the dimension of the blank, the positioning accuracy of the tool can be ensured, and the dimension 41.70+/-0.15 can be controlled.

In terms of equipment, the triaxial machining center of the embodiment is an existing machining center, specific structures and working principles are not repeated here, the working efficiency is high, the cost is low, and the problems of repeated rotation of four shafts, long auxiliary working time, low machining efficiency, high cost and the like of the existing four-shaft machining center can be solved.

Example two

The present embodiment proposes a processing system of a handle part, comprising a processing center for machining a handle part blank 1 and a processing tool 100 of a handle part as described in example one.

In this embodiment, as a preferable mode, the three-axis machining center is used as the machining center. The triaxial machining center can be used for machining the through holes 1-3 and the threaded holes 1-4, is an existing machining center, and is high in working efficiency and low in cost, and the problems of repeated rotation of four shafts, long auxiliary time, low machining efficiency, high cost and the like of the existing four-shaft machining center can be solved.

Example III

The embodiment provides a processing method of a handle part, which is implemented by adopting the processing tool of the handle part according to the first embodiment, and specifically comprises the following steps:

the method comprises the steps that a handle part blank 1 to be processed is installed on a processing tool 100 of a handle part, the tail end of the handle part blank 1 is matched with a part clamp 6, a handle opening 1-5 is sleeved on a positioning plate 4, a side plate of a threaded hole 1-4 to be processed of the handle opening 1-5 is located between the positioning plate 4 and a first positioning surface 3 and is supported by the surface of the first positioning surface 3, and a side plate of a through hole 1-3 to be processed of the handle opening 1-5 is located above the positioning plate 4 and is supported by the surface of a second positioning surface 5;

processing a through hole 1-3 on a side plate of the handle opening 1-5, which is required to be processed with the through hole 1-3;

the processing tool 100 of the handle part and the position of the handle part blank 1 are unchanged, the tap is replaced, and the tap is tapped downwards along the through hole 1-3 on the side plate of the threaded hole 1-4 to be processed of the handle opening 1-5, so that the processing of the threaded hole 1-4 is completed.

In actual operation, the through hole 1-3 is processed by point drilling, and the bottom end of the handle opening 1-5 is positioned by the third positioning surface 7, so that after the drilling point of the through hole 1-3 is found, the distance value from the axis of the through hole 1-3 (or the axis of the threaded hole 1-4) to the bottom end of the handle opening is basically determined, and the size determination accuracy is high.

Therefore, the processing tool for the handle part provided by the technical scheme is ingenious and novel in structural design, is capable of carrying out veneering support by arranging the first positioning surface on the side plate of the handle opening needing to be provided with the threaded hole, is capable of carrying out veneering support by arranging the second positioning surface on the side plate of the handle opening needing to be provided with the through hole, and can effectively solve the problems that the side plate is deformed and collapses due to the fact that the side plate of the handle opening is directly perforated. Based on which block is measured, just with the principle of which location, this technical scheme has set up the third locating surface on the locating plate, the third locating surface is the outer convex arc surface that can laminate with the fillet structure of handle opening bottom, after the handle opening suit is on the locating plate, the fillet structure location support of accessible third locating surface to handle opening bottom, then according to the distance value of through-hole axis to the handle opening bottom of predetermineeing, the curb plate mark drilling central point of through-hole need be processed can, this scheme can guarantee the machining precision of size between through-hole axis to the handle opening bottom under the prerequisite of guaranteeing that frock location is accurate.

In addition, the processing tool for the handle part is provided with the plurality of V-shaped handle sleeving clamping grooves on the positioning plate, and any V-shaped handle sleeving clamping groove can limit the side plate of the through hole to be processed simultaneously from two sides and the bottom, so that the multi-station clamping of the handle part blank can be realized on the premise of ensuring reliable positioning of the tool, the processing size of the handle part blank can be ensured, a plurality of handle part blanks can be clamped simultaneously, and the purposes of improving efficiency and reducing cost are achieved by one-time processing; meanwhile, the multi-station (namely clamping groove) is arranged, so that the tool changing times of equipment can be reduced, and the idle running time of a machine tool can be shortened.

The processing system of the handle part, which is provided by the technical scheme, utilizes the triaxial machining center to process the through hole and the threaded hole, so that the situation that the four shafts of the four-shaft machining center repeatedly rotate to waste working hours can be avoided, the machining efficiency is improved, and the production cost is reduced.

According to the processing method of the handle part, the processing tool of the handle part is adopted, the through hole with larger aperture is processed firstly according to the principle of big size and small size, then the position of the handle part blank is kept unchanged, the processed through hole is used for processing the threaded hole downwards, the through hole and the threaded hole can be processed through one procedure, the processing size of the handle part blank can be guaranteed on the premise that the tool is reliably positioned, meanwhile, the processing efficiency is improved, and the production cost is reduced.

It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.

Claims (4)

1. The utility model provides a processing frock of handle part which characterized in that includes:

the upper surface of one side of the bottom plate is provided with a first positioning surface, the upper surface of the bottom plate is a step surface, one side, close to the part clamp, of the highest step surface of the step surface is provided with a boss, and the upper surface of the boss is provided with the first positioning surface and a plurality of cushion blocks; a plurality of limiting blocks are arranged on one side, far away from the part clamp, of the highest step surface of the step surface, the limiting blocks are higher than the boss, guide grooves are formed between the adjacent limiting blocks, and the guide grooves are obliquely downwards arranged in a direction far away from the boss;

the positioning plate is arranged on the cushion block, and the cushion block is used for supporting and installing the positioning plate; the positioning plate is positioned above the first positioning surface and is arranged at intervals with the first positioning surface, and a second positioning surface is arranged on the upper surface of the positioning plate; the positioning plate is used for sleeving a handle opening of a handle part blank, wherein a side plate of the handle opening, which is required to be provided with a threaded hole, is positioned between the positioning plate and the first positioning surface and is supported by the first positioning surface in a veneering manner; the side plate of the handle opening, which is required to be provided with a through hole, is positioned above the positioning plate and is supported by the second positioning surface;

the part clamp is arranged on the lowest step surface of the step surface and is positioned on one side of the bottom plate, which is far away from the first positioning surface, and the part clamp is used for connecting the tail end of the handle part blank so as to fix the handle part blank between the positioning plate and the part clamp; a chip removal groove communicated with the guide groove is formed in one side, away from the part clamp, of the boss, and the chip removal groove is located at the opening position of the threaded hole in the handle opening;

a third positioning surface is arranged on one side of the positioning plate, which is close to the part clamp, and is an outer convex arc surface which can be attached to the round corner structure at the bottom end of the handle opening; the positioning plate is provided with a plurality of positioning convex blocks at intervals, one side or two sides of any one positioning convex block are respectively provided with a fourth positioning surface, a V-shaped handle sleeving clamping groove position is formed between any two adjacent fourth positioning surfaces, and the big end of any V-shaped handle sleeving clamping groove position faces the part clamp; the two fourth positioning surfaces of any V-shaped handle sleeve clamping groove position can be respectively attached to the two side surfaces of the side plate of the handle opening, which is required to be provided with a through hole;

the tail end of the handle part blank is matched with the part clamp, the handle opening is sleeved on the positioning plate, a side plate of a threaded hole to be machined of the handle opening is positioned between the positioning plate and the first positioning surface and is supported by the first positioning surface in a facing mode, a side plate of a through hole to be machined of the handle opening is positioned above the positioning plate and is supported by the second positioning surface in a facing mode, then the through hole is machined on the side plate of the through hole to be machined of the handle opening, and then the threaded hole is machined on the side plate of the threaded hole to be machined of the handle opening downwards along the through hole.

2. A system for machining a handle part comprising a machining center for machining the handle part blank and the handle part machining fixture of claim 1.

3. The system for machining a handle part according to claim 2, wherein the machining center is a triaxial machining center.

4. A method of machining a handle part, using the tool of claim 1, comprising:

the method comprises the steps that a handle part blank to be processed is mounted on a processing tool of the handle part, the tail end of the handle part blank is matched with a part clamp, a handle opening is sleeved on a positioning plate, a side plate of a threaded hole to be processed of the handle opening is positioned between the positioning plate and a first positioning surface and is supported by the first positioning surface in a veneering manner, and a side plate of a through hole to be processed of the handle opening is positioned above the positioning plate and is supported by a second positioning surface in a veneering manner;

processing the through hole on a side plate of the handle opening, which is required to be processed with the through hole;

and machining the threaded hole on a side plate of the threaded hole to be machined of the handle opening downwards along the through hole.