PCD composite tool with self-lubricating mechanism

Abstract

The utility model discloses a PCD compound tool with a self-lubricating mechanism, and relates to the field of PCD compound tools, the PCD compound tool comprises a PCD compound tool body, the PCD compound tool body comprises a compound tool apron, a compound tool bar and a compound blade, the bottom of the compound blade is fixedly provided with a compound tool bit, and a plurality of first through holes are formed in the compound blade; a plurality of balls are fixedly mounted on the outer wall of the composite tool apron, the outer walls of the balls are sleeved with mounting sleeves, and a plurality of clamping grooves are formed in the inner walls of the mounting sleeves; a cavity is formed in the composite tool apron, and a plurality of second through holes are formed in the bottom of the composite tool apron. By arranging the movable plug and the movable annular plate, lubricating oil can be evenly distributed on the surface, connected with the composite tool bit, of the composite blade through the multiple first through holes, the PCD composite tool is evenly self-lubricated, and by arranging the compression spring, the self-lubricating amount can be effectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field related to cutting tools, in particular to a PCD composite cutting tool provided with a self-lubricating mechanism. Background Art

[0002] The full name of PCD composite tool is polycrystalline diamond composite tool. It is a tool made of superhard material polycrystalline diamond and tool matrix through a special process. It is widely used in the processing of various materials, including metals, non-metals, composite materials, etc.

[0003] Existing PCD composite tools generate large cutting forces and cutting heat during machining due to the high-speed relative motion between the tool and the workpiece. Excessive cutting forces can lead to increased tool wear and even chipping, while excessive cutting heat can cause problems such as thermal expansion and thermal stress concentration in the tool, affecting machining accuracy and tool life. Therefore, PCD composite tools require self-lubrication.

[0004] In order to overcome the above-mentioned defects, the prior art (application number: 202122325215.9, Chinese patent application date: September 26, 2021) discloses a nano-composite coated carbide tool with self-lubricating properties. The nano-composite coated carbide tool is equipped with a spray assembly, and the adjustment screw rotates in the thread on the fixed block. The fixed block drives the slide column to move up and down to achieve height adjustment of the inclined hole, so that the cutting fluid can be accurately sprayed on the cutting surface.

[0005] Although the existing technology can solve the self-lubrication of nano-composite coated carbide tools, the nano-composite coated carbide tools spray cutting fluid onto the cutting surface through a spray assembly, but the spray assembly has limitations and dead angles, and cannot evenly spray cutting fluid on the surface of the nano-composite coated carbide tools, resulting in poor self-lubrication effect.

[0006] Therefore, we proposed that PCD composite tools with self-lubricating mechanisms can solve the above problems well. Utility Model Content

[0007] The purpose of the present utility model is to provide a PCD composite tool with a self-lubricating mechanism to solve the problem raised in the above background technology that a type of PCD composite tool with a self-lubricating mechanism currently on the market, when in use, sprays cutting fluid onto the cutting surface through a spray assembly of a nano-composite coated cemented carbide tool, but the spray assembly has limitations and blind spots, and is unable to evenly spray cutting fluid onto the surface of the nano-composite coated cemented carbide tool, resulting in poor self-lubricating effect.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a PCD composite tool provided with a self-lubricating mechanism, comprising a PCD composite tool body, wherein the PCD composite tool body comprises a composite tool holder, a composite tool rod, and a composite blade, a composite tool head is fixedly mounted on the bottom of the composite blade, and a plurality of first through holes are formed in the interior of the composite blade;

[0009] The invention also includes: a plurality of spheres are fixedly mounted on the outer wall of the composite knife holder, a mounting sleeve is provided on the outer wall of the sphere, and a plurality of slots are opened on the inner wall of the mounting sleeve;

[0010] A cavity is provided inside the composite knife holder, a plurality of second through holes are provided at the bottom of the composite knife holder, a sealing plug is passed through the top of the left side of the composite knife holder, a movable ring plate is provided inside the cavity, a plurality of guide grooves are provided inside the outer edge of the movable ring plate, a plurality of movable plugs are fixedly installed at the bottom of the movable ring plate, and the ends of the movable plugs pass through the second through holes.

[0011] As a preferred technical solution of the present application, grooves are provided inside both sides of the mounting sleeve, a fixing plate is fixedly installed on the bottom of the movable plug, a fixing block is fixedly connected to the top of the left side of the fixing plate, and the top of the fixing block passes through the groove, a slide is fixedly installed on the top of the fixed block, and a compression spring is fixedly connected to the top of the slide.

[0012] As a preferred technical solution of the present application, the cavity and the second through hole are connected to each other, and the movable plug and the second through hole are movably connected, so that the lubricating oil in the cavity flows into several second through holes through the guide groove in the movable ring plate.

[0013] As a preferred technical solution of the present application, a sealing gasket is installed on the top of the movable plug, and a circulation groove is opened on the outer wall of the movable plug, so that the lubricating oil in the second through hole flows downward through the circulation groove in the corresponding movable plug.

[0014] As the preferred technical solution of the present application, the movable ring plate and the cavity are movably connected, and the movable ring plate is set to a circular ring structure. The movable ring plate connected to the movable plug is driven by the fixed plate to move upward in the cavity, so that the sealing gasket installed on the movable plug is separated upward from the corresponding second through hole.

[0015] As a preferred technical solution of the present application, the movable ring plate and the guide groove are integrated, and the movable ring plate and the cavity are matched. The sealing gasket installed on the movable plug is upwardly separated from the corresponding second through hole, so that the lubricating oil in the cavity flows into several second through holes through the guide groove in the movable ring plate.

[0016] As the preferred technical solution of the present application, the slide plate and the groove are slidably connected, the two ends of the compression spring are tightly fitted between the slide plate and the mounting sleeve, and the slide plate connected to the fixed block is driven by the fixed plate to slide upward in the corresponding groove, so that the compression spring is squeezed during the upward sliding process of the slide plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The PCD composite tool with a self-lubricating mechanism is provided with a movable plug and a movable ring plate, which can evenly distribute lubricating oil through a plurality of first through holes to the surface of the composite blade connected to the composite cutter head, so that the PCD composite tool is evenly self-lubricated. In addition, a compression spring is provided to effectively control the amount of self-lubrication. The specific contents are shown below:

[0019] 1. A movable plug and a movable ring plate are provided. Through the cooperation of the fixed plate, the fixed block, the slide plate, the groove and the compression spring, the movable plug, the movable ring plate, the cavity, the second through-hole and the guide groove, the lubricating oil is evenly distributed through the first through-holes to the surface of the composite blade connected to the composite cutter head, so that the PCD composite tool is evenly self-lubricated.

[0020] Furthermore, a compression spring is provided, and the rebound force of the compression spring drives the movable plug connected to the fixed plate to move downward, so that the movable plug drives the sealing gasket to fit on the corresponding second through hole for sealing, thereby preventing the loss of lubricating oil in the cavity, thereby effectively controlling the self-lubrication amount;

[0021] 2. An oil scraper sleeve is provided, and the sealing plug is made of rubber, so that the staff can manually pull out the sealing plug and add lubricating oil into the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the partial structure of the composite tool holder of the utility model;

[0024] Figure 3 This is a schematic diagram of the cross-sectional structure of the composite tool holder of the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the composite tool holder and the mounting sleeve of the utility model;

[0026] Figure 5 This is a schematic diagram of the local structure of the installation sleeve of the utility model;

[0027] Figure 6 This is a schematic diagram of the local structure of the movable ring plate of the utility model;

[0028] Figure 7 For this utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0029] In the figure: 1. PCD composite tool body; 2. composite tool holder; 3. composite tool rod; 4. composite blade; 5. first through hole; 6. sphere; 7. mounting sleeve; 8. slot; 9. cavity; 10. second through hole; 11. sealing plug; 12. movable plug; 13. movable ring plate; 14. guide groove; 15. fixed plate; 16. fixed block; 17. slide plate; 18. compression spring; 19. groove. DETAILED DESCRIPTION

[0030] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 7 , the utility model provides the following technical solutions:

[0032] Example 1: In order to solve the problem that a PCD composite tool with a self-lubricating mechanism on the market has a poor self-lubricating effect when in use, because the nano-composite coated carbide tool sprays the cutting fluid on the cutting surface through the spray assembly, but the spray assembly has limitations and dead angles, and the cutting fluid cannot be evenly sprayed on the surface of the nano-composite coated carbide tool, Figure 1 -Attached Figure 7A cavity 9 is provided inside the composite knife holder 2, and a plurality of second through holes 10 are provided at the bottom of the composite knife holder 2. A movable ring plate 13 is provided inside the cavity 9, and a plurality of guide grooves 14 are provided inside the outer edge of the movable ring plate 13. A plurality of movable plugs 12 are fixedly installed at the bottom of the movable ring plate 13, and the ends of the movable plugs 12 pass through the second through holes 10. Grooves 19 are provided inside on both sides of the mounting sleeve 7. A fixed plate 15 is fixedly installed at the bottom of the movable plug 12, and a fixed block 16 is fixedly connected to the top of the left side of the fixed plate 15, and the top of the fixed block 16 passes through the groove 19. A slide 17 is fixedly installed on the top of the fixed block 16, and a compression spring 18 is fixedly connected to the top of the slide 17. The cavity 9 and the second through hole 10 are in communication, and the movable plug 12 is movably connected to the second through hole 10. A sealing gasket is installed on the top of the movable plug 12, and a flow groove is provided on the outer wall of the movable plug 12. The movable ring plate 13 is movably connected to the cavity 9 and is configured as a circular ring. The movable ring plate 13 and the guide groove 14 are integrally formed and matched to the cavity 9. The slide plate 17 is slidably connected to the groove 19, and the ends of the compression spring 18 are tightly fitted to the slide plate 17 and the mounting sleeve 7.

[0033] During the cutting process of the workpiece by the PCD composite tool body 1, the workpiece presses the two fixed plates 15 upward, so that the fixed plate 15 drives the slide plate 17 connected to the fixed block 16 to slide upward in the corresponding groove 19, so that the compression spring 18 is squeezed during the upward sliding of the slide plate 17, so that the fixed plate 15 drives the movable ring plate 13 connected to the movable plug 12 to move upward in the cavity 9, so that the sealing gasket installed on the movable plug 12 is upwardly separated from the corresponding second through hole 10, so that the lubricating oil in the cavity 9 flows into the plurality of second through holes 10 through the guide groove 14 in the movable ring plate 13, so that the lubricating oil in the second through holes 10 The lubricating oil flows downward through the circulation groove in the corresponding movable plug 12, so that the lubricating oil is evenly distributed to the surface of the composite blade 4 connected to the composite cutter head through several first through holes 5, so that the PCD composite tool is evenly self-lubricated. When the pressure on the two fixed plates 15 disappears, the rebound force of each compression spring 18 drives the movable plug 12 connected to the fixed plate 15 to move downward, so that the movable plug 12 drives the movable ring plate 13 to move downward. In the process, the movable plug 12 drives the sealing gasket to fit on the corresponding second through hole 10, thereby sealing the second through hole 10, avoiding the loss of lubricating oil in the cavity 9, and effectively controlling the self-lubrication amount.

[0034] Example 2: Lubricating oil can be added to the composite knife holder 2, please refer to the attached Figure 1 -Attached Figure 2, including a PCD composite tool body 1, the PCD composite tool body 1 includes a composite tool holder 2, a composite tool rod 3 and a composite blade 4, a composite tool head is fixedly installed on the bottom of the composite blade 4, and a plurality of first through holes 5 are opened inside the composite blade 4; it also includes: a plurality of spheres 6 are fixedly installed on the outer wall of the composite tool holder 2, the outer wall of the sphere 6 is provided with a mounting sleeve 7, the inner wall of the mounting sleeve 7 is provided with a plurality of slots 8, and a sealing plug 11 is passed through the top of the left side of the composite tool holder 2.

[0035] The sealing plug 11 is made of rubber, so that the staff can manually pull out the sealing plug 11 and add lubricating oil into the cavity 9. After the cavity 9 in the composite tool holder 2 is filled with lubricating oil, the sealing plug 11 is manually inserted into the composite tool holder 2. The composite tool holder 2 set by the PCD composite tool body 1 is installed on the processing device, and the workpiece can be cut subsequently.

[0036] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PCD composite tool provided with a self-lubricating mechanism, comprising a PCD composite tool body (1), the PCD composite tool body (1) comprising a composite tool holder (2), a composite tool rod (3) and a composite blade (4), a composite tool head being fixedly mounted on the bottom of the composite blade (4), and a plurality of first through holes (5) being formed inside the composite blade (4); It is characterized by: Also includes: A plurality of spheres (6) are fixedly mounted on the outer wall of the composite knife holder (2); a mounting sleeve (7) is provided on the outer wall of the sphere (6); and a plurality of slots (8) are provided on the inner wall of the mounting sleeve (7); A cavity (9) is provided inside the composite knife holder (2), a plurality of second through holes (10) are provided at the bottom of the composite knife holder (2), a sealing plug (11) is passed through the top of the left side of the composite knife holder (2), a movable ring plate (13) is provided inside the cavity (9), a plurality of guide grooves (14) are provided inside the outer edge of the movable ring plate (13), a plurality of movable plugs (12) are fixedly installed at the bottom of the movable ring plate (13), and the ends of the movable plugs (12) pass through the second through holes (10).

2. The PCD composite tool with a self-lubricating mechanism according to claim 1, characterized in that: Grooves (19) are provided inside both sides of the mounting sleeve (7), a fixing plate (15) is fixedly installed at the bottom of the movable plug (12), a fixing block (16) is fixedly connected to the top of the left side of the fixing plate (15), and the top of the fixing block (16) passes through the groove (19), a slide plate (17) is fixedly installed on the top of the fixing block (16), and a compression spring (18) is fixedly connected to the top of the slide plate (17).

3. The PCD composite tool with a self-lubricating mechanism according to claim 1, characterized in that: The cavity (9) and the second through hole (10) are communicated with each other, and the movable plug (12) and the second through hole (10) are movably connected.

4. The PCD composite tool with a self-lubricating mechanism according to claim 1, characterized in that: A sealing gasket is installed on the top of the movable plug (12), and a flow groove is opened on the outer wall of the movable plug (12).

5. The PCD composite tool with a self-lubricating mechanism according to claim 1, characterized in that: The movable ring plate (13) is movably connected to the cavity (9), and the movable ring plate (13) is configured as a circular ring structure.

6. The PCD composite tool with a self-lubricating mechanism according to claim 1, characterized in that: The movable ring plate (13) and the guide groove (14) are integrated, and the movable ring plate (13) and the cavity (9) are matched.

7. The PCD composite tool with a self-lubricating mechanism according to claim 2, characterized in that: The slide plate (17) and the groove (19) are in sliding connection, and the two ends of the compression spring (18) are tightly fitted with the slide plate (17) and the mounting sleeve (7).

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