CN218903647U

CN218903647U - Cutter assembly for forming large-width groove on shaft workpiece

Info

Publication number: CN218903647U
Application number: CN202223007746.4U
Authority: CN
Inventors: 刘博�; 赵俊; 马文涛
Original assignee: Shaanxi Boxin Hengda Machining Co ltd
Current assignee: Shaanxi Boxin Hengda Machining Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-25
Anticipated expiration: 2032-11-11

Abstract

The utility model discloses a cutter component for forming a large-width groove on a shaft workpiece, which comprises a cutter handle and a cutter blade. Blade clamping adjusting devices which are opposite in direction and far away from or close to each other along the same straight line direction are adjacently arranged on one side end face of the cutter handle, and the blades are clamped at the outer ends of the blade clamping adjusting devices. The cutter assembly can be used for rapidly opening the groove with a larger width, and the groove with a larger depth can be machined through the cooperation of the existing cutting tool, so that the problems that the conventional grooving cutter with a smaller width is low in efficiency and high in grooving machining times when the groove with a larger width is formed at present, the flatness of the bottom surface of the groove cannot be guaranteed, and the grooving precision is affected due to abrasion of the grooving cutter are solved. Meanwhile, the cutter component can be quickly adjusted, is suitable for the opening and processing of grooves with different widths, replaces the defect that the conventional slotting cutter has a specific size, and reduces the cutter cost.

Description

Cutter assembly for forming large-width groove on shaft workpiece

Technical Field

The utility model relates to the technical field of machining of shaft workpieces, in particular to a cutter assembly for forming a large-width groove on a shaft workpiece.

Background

The machining of the shaft workpiece comprises various machining processes, including operations such as turning of the outer peripheral surface, machining of a step shaft, machining of external threads, grooving of the peripheral surface, boring of the end surface and the like.

As shown in fig. 1 of the specification, when a groove is formed on the outer wall of a shaft workpiece, a slotting cutter (shown as 30 in the drawing) is selected to cut along the radial direction of the shaft workpiece to form a groove with a certain depth, but the width of the groove is usually limited by the width of the slotting cutter, so that slotting cutters with corresponding widths are selected when grooves with different widths are formed at present, which causes the increase of cutter cost. And after long-time grooving tool processing, the abrasion of the tool affects the grooving width and accuracy of the groove, and a new grooving tool needs to be replaced, so that the cost of the tool is increased.

In the case of processing a groove with a relatively wide size, when a grooving tool having such a width is usually not used (the width is too large to be clamped on a tool holder, the amount of grooving is large, and the strength of the tool is insufficient), the grooving tool with a relatively small width is used for stepwise processing (as shown in fig. 1), which is not only relatively low in efficiency, but also the surface accuracy of the bottom surface of the groove cannot be ensured by multiple processing. Therefore, the prior art has great difficulty when a groove with larger width is formed on the peripheral surface of the shaft workpiece.

Disclosure of Invention

Aiming at the problems, the utility model aims to provide a cutter assembly for forming a large-width groove on a shaft workpiece, which can be suitable for forming grooves with different widths, in particular for forming grooves without a large-width slotting cutter, replaces the defect that the conventional slotting cutter has a specific size, reduces the cutter cost, and solves the problems that the conventional slotting cutter with smaller width has low efficiency, has more slotting times, cannot ensure the flatness of the bottom surface of the groove and affects the slotting precision due to abrasion of the slotting cutter when the conventional slotting cutter with smaller width is used for forming the groove with the large width.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a offer cutter subassembly in wide width groove on axle class work piece, includes handle of a knife and blade, its characterized in that: blade clamping adjusting devices which are opposite in direction and far away from or close to each other along the same straight line direction are adjacently arranged on one side end face of the cutter handle, and the blades are clamped at the outer ends of the blade clamping adjusting devices.

Preferably, the blade clamping and adjusting device is a cutter bar which is flatly connected to the end face of the cutter handle and is of a square structure, the blade is detachably assembled at the outer end of the cutter bar, and each cutter bar is provided with an adjusting structure connected with the end face of the cutter handle.

Preferably, the adjusting structure is a step through groove which is formed in each cutter bar at intervals and is of a waist hole structure, a threaded hole corresponding to each step through groove is formed in the end face of each cutter bar, and each step through groove is internally provided with an adjusting bolt in a limiting penetrating mode, and the adjusting bolt is connected with the threaded hole.

Preferably, the surfaces of the blades assembled at the outer ends of the adjacent cutter bars are on the same plane, and size scribing lines are correspondingly arranged on the outer wall of each cutter bar and the outer peripheral surface of the cutter handle.

The beneficial effects of the utility model are as follows: the cutter assembly can be used for rapidly opening the groove with a larger width, and the groove with a larger depth can be machined through the cooperation of the existing cutting tool, so that the problems that the conventional grooving cutter with a smaller width is low in efficiency and high in grooving machining times when the groove with a larger width is formed at present, the flatness of the bottom surface of the groove cannot be guaranteed, and the grooving precision is affected due to abrasion of the grooving cutter are solved. Meanwhile, the cutter component can be quickly adjusted, is suitable for the opening and processing of grooves with different widths, replaces the defect that the conventional slotting cutter has a specific size, and reduces the cutter cost.

Drawings

Fig. 1 is a schematic diagram of a grooving process performed by a cutter with a specific width at present.

Fig. 2 is a front view of the cutter assembly of the present utility model.

Fig. 3 is a top view of the structure of fig. 2 of the present utility model.

Fig. 4 is a schematic diagram of an end face of a tool shank according to the present utility model.

FIG. 5 is a schematic view showing a state that a cutter assembly of the utility model contacts with the outer wall of a shaft workpiece to be processed.

Fig. 6 is a schematic side view of a larger width recess machined by the insert of the present utility model.

Fig. 7 is a schematic diagram of a process for forming a large-width groove according to the present utility model.

Detailed Description

In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model is further described below with reference to the accompanying drawings and examples.

Referring to fig. 1 to 7, a cutter assembly for forming a large-width groove in a shaft workpiece comprises a cutter handle 10 and a cutter blade 20, wherein the cutter blade 20 is generally assembled on the cutter handle 10, and a machine tool cutter head can realize the machining operation of the workpiece through the cutter blade 20 under the condition of fastening, clamping and driving the cutter handle 10.

In order to solve the problem that the conventional slotting cutter with smaller width cannot be provided with a groove with larger width, as shown in fig. 3, blade clamping and adjusting devices which are opposite in direction and far away from or close to each other along the same straight line direction are adjacently arranged on one side end surface of the cutter handle 10, and the blade 20 is clamped at the outer end of each blade clamping and adjusting device. The adjacent blade clamping and adjusting devices can realize the adjustment operation of mutual distance and approaching in the same direction, under the operation, as the blades 20 are assembled at the outer end of each blade clamping and adjusting device, in the adjustment state, the distance between the blades 20 at two sides can be adaptively adjusted according to the width of the opened groove, and under the supporting and driving action of the cutter handle 10, the blades at two sides simultaneously contact with the opened edge line of the groove on the surface of the shaft workpiece (shown as 100 in the figure) to cut the surface of the workpiece;

specifically, the blades 20 extend to the outer side of the blade clamping and adjusting device, so that the cutting edge line of the groove is ensured to be accurate according to the width of the blades 20, two sides of the outer peripheral surface of the workpiece are cut to the design depth of the groove (shown in fig. 6), a part to be cut (shown in fig. 6 c) is reserved between the two parts, and a plurality of cutters with different processing modes can be assembled on the existing numerical control machine at the same time, so that the cutting operation can be quickly switched to the cutting tool to quickly cut the part to be cut to the design depth of the groove, and further the grooving operation of the groove with a larger width can be realized.

And because the cutting depth of the blade 20 is limited, when the groove with a large depth is formed, the alternating processing operation of the cutting of the blade 20 and the reserved part in the middle can be performed (the flow chart is shown in fig. 7), so that the forming processing of the groove with a large depth can be realized. Therefore, the cutter assembly can be used for rapidly opening the groove with a larger width, and the groove with a larger depth can be processed through the cooperation of the existing cutting cutter, so that the problems that the conventional grooving cutter with a smaller width is low in efficiency and high in grooving processing times when the groove with a larger width is opened at present, the flatness of the bottom surface of the groove cannot be guaranteed, and the grooving precision is influenced due to abrasion of the grooving cutter are solved.

Preferably, as shown in fig. 3, the blade clamping and adjusting device is a square cutter bar 1 which is flatly attached to the end face of the cutter handle 10, and the blade 20 is detachably assembled at the outer end of the cutter bar, and in particular, the blade is usually beyond the end face and the side wall face of the cutter bar 1, so as to contact with the surface of a workpiece, and avoid machining interference existing when the cutter bar 1 body contacts with the workpiece. Each cutter bar 1 is provided with an adjusting structure connected with the end face of the cutter handle 10, which can adjust the overlapping width of the adjacent cutter bars 1, and further adjust the spacing between the blades 20 at two ends so as to adapt to the opening width of the groove.

Specifically, as shown in fig. 3, the adjusting structure is a stepped through groove 1a with a waist hole structure formed in each cutter bar 1 at intervals, a threaded hole 10a corresponding to each stepped through groove 1a is formed in the end face of the cutter handle 10, and an adjusting bolt 2 connected with the threaded hole 10a is arranged in each stepped through groove 1a in a limiting manner. The adjacent cutter bars 1 can horizontally slide left and right by loosening the adjusting bolts 2, the distance between the blades 20 on two sides is preferably measured by a measuring ruler, the adjacent cutter bars 1 can be relatively fastened by screwing the adjusting bolts 2 again, and the stable distance between the blades 20 and the grooving width are ensured.

Preferably, as shown in fig. 2-6, the surfaces of the blades 20 assembled at the outer ends of the adjacent cutter bars 1 are on the same plane, specifically, when the cutter handle 10 is in the horizontal machining direction, the two side blades 20 are on the same vertical plane, which ensures that the two side blades 20 simultaneously contact the outer peripheral surface of the workpiece, realizes simultaneous cutting of the side wall surfaces of two sides of the groove, and improves the machining stability.

As shown in fig. 2, the outer wall of each cutter bar 1 and the outer circumferential surface of the cutter handle 10 are correspondingly provided with dimension lines b, which are convenient for quickly adjusting the spacing between the blades 20 at two sides, thereby shortening the processing period of the grooves with larger width.

The principle of the utility model is as follows: adjacent cutter bars 1 which can be far away from and close to each other along the same straight line direction are arranged on the end face of the cutter handle 10, and the blade 20 is assembled on the outer end of the cutter bars 1 and kept on the same plane. During adjustment, the adjacent cutter bars 1 can horizontally slide left and right by loosening the adjusting bolts 2, the spacing between the cutter blades 20 on two sides is compared through the dimension scribing line b, the spacing between the cutter blades 20 on two sides is preferably measured through the measuring ruler, the adjacent cutter bars 1 can be relatively fastened by screwing the adjusting bolts 2 again, and stable spacing between the cutter blades 20 and grooving width are ensured.

During processing, through the drive of handle of a knife 10 for the cutting is carried out on the work piece global to both sides's blade 20 contact simultaneously, stops cutting when cutting to recess design degree of depth on the work piece outer peripheral face, and changes to conventional cutting tool, will reserve the partial excision of waiting to excision, and then can realize the fluting processing operation of the recess of great width. For deeper grooves, alternate mating of the shank 10 and conventional cutting tools is employed until the groove is machined to the designed depth.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A cutter assembly for forming a large-width groove in a shaft workpiece, comprising a cutter handle (10) and a cutter blade (20), and being characterized in that: blade clamping adjusting devices which are opposite in direction and far away from or close to each other along the same straight line direction are adjacently arranged on one side end face of the knife handle (10), and the blade (20) is clamped at the outer end of each blade clamping adjusting device.

2. A cutter assembly for forming a large width groove in a shaft-like workpiece according to claim 1, wherein: the blade clamping and adjusting device is a cutter bar (1) which is flatly connected to the end face of the cutter handle (10) and is of a square structure, the blades (20) are detachably assembled at the outer ends of the cutter bar, and each cutter bar (1) is provided with an adjusting structure connected with the end face of the cutter handle (10).

3. A cutter assembly for forming a large width groove in a shaft-like workpiece according to claim 2, wherein: the adjusting structure is characterized in that step penetrating grooves (1 a) with waist hole structures are formed in each cutter bar (1) at intervals, threaded holes (10 a) corresponding to the step penetrating grooves (1 a) are formed in the end face of the cutter handle (10), and adjusting bolts (2) connected with the threaded holes (10 a) are arranged in each step penetrating groove (1 a) in a limiting mode.

4. A cutter assembly for forming a large width groove in a shaft-like workpiece according to claim 3, wherein: the surfaces of the blades (20) assembled at the outer ends of the adjacent cutter bars (1) are on the same plane, and size scribing lines (b) are correspondingly arranged on the outer wall of each cutter bar (1) and the outer peripheral surface of the cutter handle (10).