Cutter holder and cutter bar special for machining oil cylinder barrel

Abstract

The utility model provides a special tool apron and tool bar for machining an oil cylinder barrel. The special tool apron and tool bar comprises a plurality of tool bars and a plurality of tool aprons clamped on a machine tool cutterhead, the cutter holder is used for clamping and supporting the cutter bar in a clamping manner; the tool bar is inserted into the tool apron in the axis direction of the machine tool cutterhead, a tool mounting groove used for mounting a tool is formed in the outer end of the tool bar, and the tool mounting groove is formed in the radial direction of the machine tool cutterhead. According to the tool apron tool bar special for machining the oil cylinder barrel, the universality of the tool apron tool bar is improved, manufacturing of a special tool bar is avoided, and it is ensured that a boring blade can penetrate into the hydraulic oil cylinder barrel to conduct machining.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder barrel machining tools, specifically, to a special tool holder and tool shank for hydraulic cylinder barrel machining. Background Technology

[0002] Hydraulic cylinders are crucial components of coal mine supports. A typical hydraulic cylinder consists of a cylinder barrel and cylinder head, a piston and piston rod, and sealing devices. In the production of hydraulic cylinder barrels, boring tools are used to bore the cylinder barrel. Due to the deep cavity dimensions of the cylinder barrel, boring tools must be pre-mounted on square or cylindrical tool holders before the inner wall of the hydraulic cylinder barrel is machined using these tools.

[0003] For example, utility model patent CN218135018U discloses a high-strength boring bar for hydraulic cylinder barrels, including a boring bar connecting rod, a chip collection box, a boring bar fixing rod, a boring bar component, and mounting bolts. The chip collection box is fixedly connected to the front of the boring bar connecting rod, and the boring bar fixing rod is fixedly connected to the front of the chip collection box, with a slotted structure at the front end of the fixing rod. The boring bar component is inserted into the slot at the front end of the fixing rod. Two sets of mounting bolts are provided. This high-strength boring bar for hydraulic cylinder barrels avoids chip clogging of the boring hole, facilitates subsequent cleaning, achieves heat dissipation during boring, and increases the service life of the boring bar component. However, the high-strength boring bar for the hydraulic cylinder barrel requires additional cooling pipes to cool the boring bar during boring, resulting in low cooling efficiency. Furthermore, the high-strength boring bar for the hydraulic cylinder barrel is a specially designed structure and is not universally applicable. Utility Model Content

[0004] In order to increase the versatility of the tool holder and tool shank, avoid the manufacture of special tool shanks, and ensure that the boring tool can penetrate deep into the hydraulic cylinder barrel for machining, the technical solution adopted by this utility model is: a special tool holder and tool shank for machining hydraulic cylinder barrel, including a number of tool shanks and a number of tool holders that are snapped onto the machine tool cutter head;

[0005] The tool holder is used to clamp and support the tool bar in a clamping manner;

[0006] The tool holder is inserted into the tool holder along the axial direction of the machine tool cutter head, and a tool mounting groove for mounting a tool is provided at the outer end of the tool holder. The tool mounting groove is arranged along the radial direction of the machine tool cutter head.

[0007] Based on the above, in order to improve processing efficiency, several of the tool holders are detachably and equally spaced on the machine tool cutter head.

[0008] Based on the above, in order to facilitate timely cooling of the cutting edge of the machining tool, the tool holder and the tool support are respectively provided with interconnected coolant channels, and the outer end of the tool holder is provided with a nozzle that communicates with the coolant channels.

[0009] Based on the above, the lengths by which several of the tool holders are inserted into the tool holder are the same.

[0010] Based on the above, the tool holder includes a tool holder base, and a tool insert cavity with a top opening is provided inside the tool holder base. A pair of clamping lugs connected to the tool holder base are formed at the top of the tool insert cavity, and threaded holes are provided on the pair of clamping lugs respectively.

[0011] Based on the above, in order to detachably install the tool holder onto the machine tool cutter head, the tool holder base is provided with a plurality of bolt holes for connecting the machine tool cutter head along the radial direction of the tool bar insertion cavity.

[0012] Based on the above, in order to improve the installation stability of the tool holder, a positioning plate is provided at the outer end of the tool holder base, and a fixing hole is provided on the positioning plate.

[0013] Based on the above, the lower part of the tool holder base is provided with a protrusion for engaging the machine tool tool disc.

[0014] This utility model has substantial features and advancements compared to existing technologies. Specifically, the tool holder and tool shank for hydraulic cylinder machining provided by this utility model, through its design of a tool holder that can be clamped on a cutter head and its open-top clamping design, along with the insertion of a tool shank inside the tool holder, expands the types of tool shanks that can be installed in the tool holder, making it easier to install the tool shank on the cutter head and improving the versatility of the tool holder and tool shank. Simultaneously, by creating a tool mounting groove at the outer end of the tool shank, machining tools can be detachably installed at the end of the tool shank along the radial direction of the cylinder using positioning screws. Furthermore, by changing the length of the tool shank inserted into the tool holder, it can ensure that the boring bar can penetrate deeply into the hydraulic cylinder for machining, improving machining efficiency.

[0015] Furthermore, by opening coolant channels inside the tool holder and tool shank respectively, the grinding fluid can be directly poured to the tool tip using internal water flow, thereby improving cooling efficiency and tool life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly structure of the special tool holder and tool shank for machining hydraulic cylinders provided by this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the tool holder in the special tool holder for machining hydraulic cylinder barrels provided by this utility model.

[0018] Figure 3 This is a schematic diagram of the side structure of the tool holder in the special tool holder for machining hydraulic cylinder barrels provided by this utility model.

[0019] Figure 4 This is a schematic diagram of the side structure of the tool holder in the special tool holder for machining hydraulic cylinder barrels provided by this utility model.

[0020] Figure 5 This is a schematic diagram of the bottom structure of the tool holder in the special tool holder for machining hydraulic cylinder barrels provided by this utility model.

[0021] Figure 6 This is a schematic diagram of the end structure of the tool holder in the special tool holder for machining hydraulic cylinder barrels provided by this utility model.

[0022] Figure 7 This is a schematic diagram of the tool holder structure along section AA in the special tool holder and tool holder for machining oil cylinder barrels provided by this utility model.

[0023] Figure 8 This is a schematic diagram of the tool holder structure along the BB section of the tool holder and tool bar for machining hydraulic cylinders provided by this utility model.

[0024] Figure 9 This is a schematic diagram of the assembly structure of the special tool holder and tool bar for machining hydraulic cylinders and the machine tool cutter head provided by this utility model.

[0025] In the diagram: 1. Tool holder; 2. Threaded hole; 3. Tool shank; 4. Nozzle; 5. Tool mounting slot; 6. First water inlet; 7. First protrusion; 8. Positioning plate; 9. Positioning head; 10. Positioning rod; 11. Plug; 12. Screw hole; 13. First coolant channel; 14. Second coolant channel; 15. Bolt hole; 16. Second protrusion; 17. Second water inlet; 18. Clamping ear plate; 19. Tool shank insertion cavity; 20. Third coolant channel; 21. Tool holder base; 22. Machine tool cutter head; 23. Tool holder mounting block; 24. Tool holder positioning slot. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0027] Example 1

[0028] This embodiment provides a special tool holder and tool shank for machining hydraulic cylinder barrels, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the machine includes several tool holders 3 and several tool supports 1 that are snapped onto the machine tool cutter head 22. The tool supports 1 are used to clamp and support the tool holders 3 in a clamping manner.

[0029] The tool holder 3 is inserted into the tool holder 1 along the axial direction of the machine tool cutter head 22. The outer end of the tool holder 3 is provided with a tool mounting groove 5 for mounting a tool. The tool mounting groove 5 is arranged along the radial direction of the machine tool cutter head 22.

[0030] In this embodiment, in order to improve processing efficiency, several of the tool holders 1 are detachably snapped onto the machine tool turret 22 at equal intervals.

[0031] Specifically, the tool holder 1 includes a tool holder base 21, and the tool holder base 21 has a tool shank insertion cavity 19 with a top opening. A pair of clamping lugs 18 are formed at the top of the tool shank insertion cavity 19 and connected to the tool holder base 21. Each of the clamping lugs 18 has a threaded hole 2. To allow the tool holder 1 to be detachably mounted on the machine tool cutter head 22, the tool holder 1 base has multiple bolt holes 15 along the radial direction of the tool shank insertion cavity 19 for connecting to the machine tool cutter head 22.

[0032] Specifically, the tool holder 3 includes a positioning head 9 and a positioning rod 10. The positioning rod 10 is used to be inserted into the tool holder insertion cavity 19. The tool mounting groove 5 is formed on the positioning head 9, and a plurality of screw holes 12 are formed on the tool mounting groove 5.

[0033] Example 2

[0034] This embodiment provides a special tool holder and tool shank for machining hydraulic cylinder barrels. The main difference from Embodiment 1 is that, in this embodiment, to facilitate timely cooling of the cutting edge of the machining tool, the tool shank 3 and the tool holder 1 are respectively provided with interconnected coolant channels, and the outer end of the tool shank 3 is provided with a nozzle 4 communicating with the coolant channels. Specifically, according to their distribution positions, they can be divided into a first coolant channel 13, a second coolant channel 14, and a second coolant channel 20. The coolant channels are also provided with a first water inlet 6 and a second water inlet 17, and plugs 11 are also provided on the coolant channels.

[0035] Example 3

[0036] This embodiment provides a special tool holder and tool bar for machining hydraulic cylinder barrels. The main difference from Embodiment 1 is that in this embodiment, several of the tool bars are inserted into the tool holder by the same length.

[0037] Example 4

[0038] This embodiment provides a special tool holder and tool shank for machining hydraulic cylinder barrels. The main difference from Embodiment 1 is that, in this embodiment, to improve the installation stability of the tool holder, a positioning plate 8 is provided at the outer end of the tool holder base 21, and the positioning plate 8 has fixing holes. The lower part of the tool holder base 21 has protrusions for engaging the machine tool cutter head 22. Based on their distribution, these can be designated as the first protrusion 7 and the second protrusion 16. Correspondingly, the machine tool cutter head 22 is provided with a tool holder mounting block 23 for mounting the tool holder 1, and the tool holder mounting block 23 has a tool holder positioning groove 24 that mates with the protrusions.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A special tool holder and tool shank for machining hydraulic cylinder barrels, characterized in that: It includes several tool holders and several tool supports that are snapped onto the machine tool cutter head; The tool holder is used to clamp and support the tool bar in a clamping manner; The tool holder is inserted into the tool holder along the axial direction of the machine tool cutter head, and a tool mounting groove for mounting a tool is provided at the outer end of the tool holder. The tool mounting groove is arranged along the radial direction of the machine tool cutter head.

2. The special tool holder and tool shank for machining hydraulic cylinder barrels according to claim 1, characterized in that: Several of the aforementioned tool holders are detachably snapped onto the machine tool turret at equal intervals.

3. The special tool holder and tool shank for machining hydraulic cylinder barrels according to claim 1 or 2, characterized in that: The tool holder and the tool base are respectively provided with interconnected coolant channels, and the outer end of the tool holder is provided with a nozzle that communicates with the coolant channels.

4. The special tool holder and tool shank for machining hydraulic cylinder barrels according to claim 1 or 2, characterized in that: The lengths by which several of the tool holders are inserted into the tool holder are the same.

5. The special tool holder and tool shank for machining hydraulic cylinder barrels according to claim 1, characterized in that: The tool holder includes a tool holder base, and a tool insert cavity with a top opening is provided inside the tool holder base. A pair of clamping lugs connected to the tool holder base are formed at the top of the tool insert cavity, and threaded holes are provided on the pair of clamping lugs respectively.

6. The special tool holder and tool shank for machining hydraulic cylinder barrels according to claim 5, characterized in that: The tool holder base has multiple bolt holes along the radial direction of the tool bar insertion cavity for connecting the machine tool cutter head.

7. The special tool holder and tool shank for machining hydraulic cylinder barrels according to claim 5 or 6, characterized in that: A positioning plate is provided at the outer end of the tool holder base, and a fixing hole is provided on the positioning plate.

8. The special tool holder and tool shank for machining hydraulic cylinder barrels according to claim 7, characterized in that: The lower part of the tool holder base is provided with a protrusion for engaging the machine tool tool disc.

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