Novel scraping finishing cutter block

Abstract

The utility model discloses a novel scraping finishing cutter block. A fixed cutter and a sliding cutter are respectively fixed on a fixed plate and a sliding plate; trigger grooves and guide grooves are formed in the butt joint faces of the fixed plate and the sliding plate, and a transverse movement avoiding area is arranged in the trigger groove located in the bottom face of the sliding plate; a sliding assembly is jointly fixed in the sliding plates and comprises a trigger rod and a sliding rod, and the sliding rod is in linkage with the sliding plates; a transverse moving guide part is arranged between the trigger rod and the sliding rod in a matched mode, and driving and guiding of the trigger rod to the sliding rod are achieved through the transverse moving guide part. Through the structural arrangement, when the triggering rod is driven by external force, the sliding rod can be extruded through the triggering rod so that the whole sliding plate can move, and the sliding cutter is driven by the sliding plate to transversely move so that the machining outer diameter can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of inner diameter finishing tools, in particular to a novel scraping finishing tool block. Background Art

[0002] In the field of cylinder processing, rolling deep hole tools can achieve fine processing of deep hole inner diameters and cylinder inner diameters. After fine processing, the inner diameter surface is further processed by rolling to achieve a high-precision inner diameter surface. When processing deep holes, an integrated tool or a tool block is usually set on the front side of the tool. This tool is radially fixed on the rolling deep hole cutter and set on the rear side of the rough cutter. After the rough cutter processing, the inner wall is finely processed by the fine cutter block to obtain a smooth surface inside the hole.

[0003] In the actual processing process, the fine cutter block of the existing deep hole tool is of fixed design, and is fixed on the deep hole tool through modular design. When finishing the inner hole, it feeds into the hole diameter in a fixed outer diameter manner, thereby realizing the processing of the inner wall of the deep hole. However, the disadvantages of this processing method are: 1. The size of the fine cutter is fixed, and it cannot be used universally when processing some inner holes of similar sizes. The cutter block needs to be replaced every time a size is processed, and the cutter block needs to be calibrated every time it is replaced; 2. When processing deep holes, the tool needs to be withdrawn after processing. The current operation steps are that the fine cutter must be disassembled at the end of processing, and then the tool rod or the cutter block without the fine cutter is withdrawn from the drive end. This operation method can prevent the tool from scratching the inner wall of the deep hole that has been processed, but it is very cumbersome in actual operation and is easy to damage the cutter block or cause damage to the workpiece.

[0004] As a processing unit for this type of deep hole tool, in view of the shortcomings of the existing technology, how to improve the technology and design a precision tool that can adjust the processing inner diameter within a certain range, and achieve tool retraction without disassembly through external adjustment is a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] The utility model aims to provide a new type of scraping fine knife block, which can stably realize the radial precision adjustment of the fine knife, can realize multi-size processing through the same knife block, and can realize the retraction of the fine knife without disassembly, and can realize the retraction operation efficiently and safely.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a new type of scraping fine knife block, which includes a fixed plate and a sliding plate, and a fixed blade and a sliding blade are fixed on the fixed plate and the sliding plate respectively;

[0007] A transverse adjustment hole and a locking hole are provided between the fixed plate and the sliding plate, and the locking and lateral adjustment between the fixed plate and the sliding plate are achieved through the cooperation between the transverse adjustment hole and the locking hole;

[0008] The fixed plate and the sliding plate are both provided with trigger grooves and guide grooves on their mating surfaces, and a lateral movement avoidance zone is provided in the trigger groove on the bottom surface of the sliding plate; a sliding assembly is fixed in the sliding plate, and the sliding assembly includes a trigger rod and a sliding rod, and the sliding rod is linked to the sliding plate; an elastic extrusion device is provided in the trigger groove to cooperate with the trigger rod; a lateral movement guide portion is provided between the trigger rod and the sliding rod, and the trigger rod drives and guides the sliding rod through the lateral movement guide portion.

[0009] A guide shaft is arranged between the fixed plate and the sliding plate. The guide shaft is fixed on the fixed plate or the sliding plate. When the fixed plate and the sliding plate move relative to each other, the guide shaft realizes transverse guidance.

[0010] The trigger rod and the sliding rod are cross-shaped; the trigger rod is provided with a docking groove toward the sliding rod, a guide block is provided at the rear side of the docking groove, and a guide surface is provided on the guide block; the sliding rod is provided with a sliding groove toward the trigger rod, a docking surface is provided on the sliding groove, and the docking surface cooperates with the guide surface; an avoidance groove is also provided at the lower part of the sliding groove, and the width of the avoidance groove is not less than the width of the lateral avoidance zone.

[0011] The guide shaft is provided with a locking hole and a positioning inclined surface, and the fixed plate and the sliding plate are both provided with positioning elongated holes and inclined positioning holes for fixing the locking screw and the positioning nut.

[0012] The beneficial effects of the utility model are as follows: through the above design, the utility model is respectively fixed with a fixed knife and a sliding knife on the fixed plate and the sliding plate; a trigger groove and a guide groove are provided on the docking surfaces of the fixed plate and the sliding plate, and a transverse movement avoidance zone is provided in the trigger groove on the bottom surface of the sliding plate; a sliding assembly is fixed in the sliding plate, and the sliding assembly includes a trigger rod and a sliding rod, and the sliding rod is linked with the sliding plate; a transverse movement guide part is provided between the trigger rod and the sliding rod, and the trigger rod drives and guides the sliding rod through the transverse movement guide part. Through the above structural setting, when the trigger rod is driven by an external force, the sliding rod can be squeezed by the trigger rod to realize the movement of the entire sliding plate, and the sliding plate drives the sliding knife to move transversely to realize the adjustment of the processing outer diameter.

[0013] The utility model has a novel structure and adopts external drive in the whole driving process. The finishing size can be adjusted within a certain range during the processing. After the processing is completed, the tool can be withdrawn without disassembling the finishing knife, thus avoiding various disadvantages caused by disassembling the knife. The utility model is an ideal scraping finishing knife block. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 is a schematic diagram of the bottom structure of the sliding plate;

[0017] Figure 4 It is a schematic diagram of the split structure of the sliding component;

[0018] Figure 5 It is a schematic diagram of the assembly structure of the sliding rod in the sliding assembly;

[0019] : 1. sliding plate, 11. sliding knife fixing hole, 12. upper lateral adjustment hole, 13. upper locking hole, 14. inclined positioning hole, 15. positioning strip hole, 16. lateral movement avoidance area, 17. guide groove, 2. fixed plate, 21. trigger groove, 22. lower locking hole, 23. lower lateral adjustment hole, 3. guide shaft, 31. locking hole, 32. positioning inclined surface, 4. fixed knife locking block, 41. fixed blade, 5. sliding knife locking block, 50. knife groove, 51. sliding blade, 6. sliding rod, 61. sliding groove, 62. avoidance groove, 63. docking surface I, 64. docking surface II, 7. trigger rod, 71. docking groove, 72. guide block, 73. outer guide surface, 74. inner guide surface, 8. spring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0021] As shown in the figure, a new type of scraping finishing knife block is provided, and its overall structure appearance is similar to that of the existing deep hole finishing boring tool. The specific structure is as follows: it includes a fixed plate 2 and a sliding plate 1, on which a fixed blade 41 and a sliding blade 51 are fixed respectively. As shown in Figures 1 and 2, the corners of the fixed plate 2 are locked with the fixed blade 41 and the fixed plate 2 by means of a fixed knife locking block 4; the corners of the sliding plate 1 are locked with the sliding blade 51 and the sliding plate 1 by means of a sliding knife locking block 5. When the utility model realizes the assembly of the fixed blade 41 and the sliding blade 51, the knife groove 50 for the fixed blade needs to be larger than the size of the blade. In this embodiment, the single-side deviation is more than 1 mm. This design can provide a certain range of adjustment margin when adjusting the fixed blade 41 and the sliding blade 51.

[0022] The utility model is provided with two groups of transverse adjustment holes and locking holes between the fixed plate 2 and the sliding plate 1. Figure 1 , 2As shown, the fixed plate 2 is provided with a lower locking hole 22 and a lower transverse adjustment hole 23; the sliding plate 1 is provided with an upper transverse adjustment hole 12 and an upper locking hole 13. When the fixed plate 2 and the sliding plate 1 are assembled, the fixed plate 2 and the sliding plate 1 are matched by the lower locking hole 22 and the upper transverse adjustment hole 12, and by the upper locking hole 13 and the lower transverse adjustment hole 23; when the combination is locked, the upper transverse adjustment hole 12 and the lower transverse adjustment hole 23 are both long holes, and the bolts are not completely locked when they are locked. Under the drive of external force, the fixed plate 2 and the sliding plate 1 can achieve relative transverse movement.

[0023] The design focus of the utility model is that the fixed plate 2 and the sliding plate 1 are both provided with a trigger groove 21 and a guide groove 17 on the joint surface. Figure 3 As shown, a lateral movement avoidance zone 16 is provided in the trigger groove 21 on the bottom surface of the sliding plate 1. The lateral movement avoidance zone 16 described here can be realized by widening the trigger groove 21 on the bottom surface of the sliding plate 1; Figure 2 As shown, a trigger groove 21 and a guide groove 17 are provided on the top surface of the fixed plate 2; after the fixed plate 2 is docked with the sliding plate 1, a sliding assembly is fixed between the two, and the sliding assembly includes a trigger rod 7 and a sliding rod 6, the sliding rod 6 is linked with the sliding plate 1, and the sliding plate 1 is linked with the sliding blade 51; a spring 8 is provided in the trigger groove 21 as an elastic extrusion device to cooperate with the trigger rod 7; a transverse guide portion is provided between the trigger rod 7 and the sliding rod 6, and the trigger rod 7 drives and guides the sliding rod 6 through the transverse guide portion.

[0024] The arrangement structure of the transverse guide portion can adopt the following structure: Figure 4 As shown, the trigger rod 7 and the sliding rod 6 are crossed; the trigger rod 7 is provided with a docking groove 71 facing the sliding rod 6, and a guide block 72 is provided at the rear side of the docking groove 71. The guide block 72 is provided with two guide surfaces, namely an outer guide surface 73 and an inner guide surface 74. The guide constraint of the sliding rod 6 is achieved through the cooperation of the two guide surfaces. Figure 5 As shown, the sliding rod 6 is provided with a sliding groove 61 toward the trigger rod 7, and the sliding groove 61 is provided with two docking surfaces, namely, docking surface I 63 and docking surface II 64, which are respectively matched with the outer guide surface 73 and the inner guide surface 74; the lower part of the sliding groove 61 is also provided with an avoidance groove 62, and the width of the avoidance groove 62 is not less than the width of the transverse avoidance area 16. Through the above structural setting, the trigger rod 7 and the sliding rod 6 are docked with a mortise and tenon structure. The docking groove 71, the sliding groove 61, the outer guide surface 73 and the inner guide surface 74 disclosed above, and the docking surface I 63 and the docking surface II 64 together constitute the transverse guide part.

[0025] In the working state of the utility model: when the transverse guide part realizes the transverse guide function, in combination with the attached drawings, the external trigger rod body (not marked) is inserted into the end face of the trigger rod 7 through the trigger groove 21, and when the external trigger rod body does not apply force, the spring 8 squeezes the trigger rod 7 to the outermost side, and the sliding rod 6 is not squeezed by the outer guide surface 73 and the inner guide surface 74 on the trigger rod 7. At this time, the fixed plate 2 and the sliding plate 1 do not undergo relative displacement, and the relative distance between the fixed blade 41 and the sliding blade 51 is the shortest. At this time, the processing radius of the scraping fine knife block of the utility model is the smallest.

[0026] The external trigger rod body (not marked) is inserted into the end face of the trigger rod 7 through the trigger groove 21. When the external trigger rod body applies force, the trigger rod 7 pushes the spring 8 to be squeezed. At this time, the sliding rod 6 is squeezed by the outer guide surface 73 and the inner guide surface 74 on the trigger rod 7. At this time, the sliding rod 6 and the trigger rod 7 are relatively displaced. Because the sliding rod 6 and the sliding plate 1 are an integrated linkage structure, when the sliding plate 1 moves laterally, it drives the sliding blade 51 to move laterally to realize the increase of the distance between the fixed blade 41 and the sliding blade 51. When the relative displacement of the sliding rod 6 and the trigger rod 7 reaches the limit, the processing radius of the scraping fine knife block of the present invention reaches the maximum.

[0027] Furthermore, on the basis of the above structural arrangement, in order to ensure the stability of the fixed blade 41 and the sliding blade 51 during transverse movement, the utility model arranges a guide shaft 3 between the fixed plate 2 and the sliding plate 1. In the present embodiment, there are two guide shafts 3, each of which is provided with a locking hole 31 and a positioning bevel 32. Corresponding to the locking hole 31 and the positioning bevel 32, inclined positioning holes 14 and positioning elongated holes 15 are respectively processed on the fixed plate 2 and the sliding plate 1. The guide shaft 3 is fixed by passing a bolt through the positioning elongated hole 15 and can also achieve axial movement within a certain range after fixation; the inclined positioning hole 14 can realize the penetration fixation of the inclined bolt, and the bottom end of the inclined bolt here is squeezed and fixed on the positioning bevel 32. After the above structure is set, two guide shafts 3 are set between the fixed plate 2 and the sliding plate 1, and the two guide shafts 3 are respectively fixed on the fixed plate 2 and the sliding plate 1. After fixation, they can be used as guide components when the fixed plate 2 and the sliding plate 1 slide. This kind of guide can ensure the stability of the fixed blade 41 and the sliding blade 51 during transverse movement, and prevent radial deflection or deviation during transverse movement.

[0028] To sum up, the utility model has a novel structure and the entire driving process adopts external drive. The finishing size can be adjusted within a certain range during the processing. After the processing is completed, the tool retraction action can be achieved without disassembling the finishing tool module, avoiding various disadvantages caused by disassembling the tool. It is an ideal scraping finishing tool block.

Claims

1. A new type of scraping fine knife block, characterized by: It comprises a fixed plate and a sliding plate, on which a fixed blade and a sliding blade are fixed respectively; A transverse adjustment hole and a locking hole are provided between the fixed plate and the sliding plate, and the locking and lateral adjustment between the fixed plate and the sliding plate are achieved through the cooperation between the transverse adjustment hole and the locking hole; The fixed plate and the sliding plate are both provided with trigger grooves and guide grooves on their mating surfaces, and a lateral movement avoidance zone is provided in the trigger groove on the bottom surface of the sliding plate; a sliding assembly is fixed in the sliding plate, and the sliding assembly includes a trigger rod and a sliding rod, and the sliding rod is linked to the sliding plate; an elastic extrusion device is provided in the trigger groove to cooperate with the trigger rod; a lateral movement guide portion is provided between the trigger rod and the sliding rod, and the trigger rod drives and guides the sliding rod through the lateral movement guide portion.

2. A new type of scraping fine knife block according to claim 1, characterized in that : A guide shaft is arranged between the fixed plate and the sliding plate, and the guide shaft is fixed on the fixed plate or the sliding plate.

3. A new type of scraping fine knife block according to claim 1, characterized in that : The trigger rod and the sliding rod are cross-intersected; the trigger rod is provided with a docking groove toward the sliding rod, a guide block is provided at the rear side of the docking groove, and a guide surface is provided on the guide block; the sliding rod is provided with a sliding groove toward the trigger rod, a docking surface is provided on the sliding groove, and the docking surface cooperates with the guide surface; an avoidance groove is also provided at the lower part of the sliding groove, and the width of the avoidance groove is not less than the width of the lateral avoidance zone.

4. A new type of scraping fine knife block according to claim 2, characterized in that : The guide shaft is provided with a locking hole and a positioning inclined surface, and the fixed plate and the sliding plate are both provided with positioning long holes and inclined positioning holes for fixing the locking screw and the positioning nut.

Images