A tool holder for loading and unloading tools for CNC boring and milling machines

Abstract

The utility model provides a tool holder for loading and unloading tools for a numerically controlled boring and milling machine, comprising a tool holder body, fixed bottom plates are symmetrically arranged at the bottom ends of both sides of the tool holder body, stepped holes are processed on the fixed bottom plates, the upper front part of the tool holder body is processed to form a step, the middle part of the step is processed to form a first arc-shaped supporting step, a center hole is processed in the middle part of the tool holder body, rectangular grooves are arranged on both sides of the center hole and located on the front of the tool holder body, threaded holes are processed at the position where the rectangular grooves are located, and a top opening is processed at the top middle part of the center hole. This tool holder can be used to load ISO 7:24 NO.50 tail cone shank tools into ISO 7:24 NO.60 transition tool holders, solving the problem that the transition tool holder has no loading and unloading tool holder and the loading and unloading of tools is inconvenient, reducing the risk of easy damage to the blade when loading and unloading tools without a fixed position, improving the efficiency of loading and unloading tools, and increasing the reliability of firm assembly.

Description

Technical Field

[0001] The utility model relates to the field of numerical control machine tool components, and mainly relates to a tool holder for loading and unloading a tool for a numerical control boring and milling machine. Background Art

[0002] In the field of mechanical processing, the spindle inner taper holes of large CNC boring and milling equipment are mostly ISO 7:24 NO.60, while the ISO 7:24 NO.60 tail taper shank tools in the tool market are mostly non-standard products, expensive and with a long production cycle, while ISO 7:24 NO.50 tail taper shank tools are conventional products. Therefore, in practical applications, standard ISO 7:24 NO.50 tail taper shank tools are often converted to ISO 7:24 NO.60 tail taper shanks through transition tool holders, and then installed in the spindle inner taper holes of boring and milling equipment for processing.

[0003] Our company uses a lot of transition tool holders from ISO 7:24 NO.50 tool holders to ISO 7:24 NO.60 tool holders. Since most ISO 7:24 NO.60 end-taper tool holders are non-standard products, there are few tool holders on the market for assembling tools. Therefore, in on-site processing, there is no fixed or dedicated tool holder for loading and unloading, which makes loading and unloading of conversion tools extremely inconvenient and there is a risk of damaging the blade. We urgently need a tool holder with a simple structure and easy use. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a tool holder for loading and unloading tools for CNC boring and milling machines. The tool holder can be used to load an ISO 7:24 NO.50 tail cone shank tool into an ISO 7:24 NO.60 transition shank, thereby solving the problem that the transition shank has no loading and unloading tool holder and the loading and unloading of tools is inconvenient, reducing the risk of easily damaging the blade when loading and unloading tools without a fixed position, improving the efficiency of loading and unloading tools, and increasing the reliability of firm assembly.

[0005] In order to realize the above-mentioned technical features, the purpose of the utility model is realized as follows: a tool holder for loading and unloading tools of a CNC boring and milling machine, comprising a tool holder body, fixed base plates are symmetrically arranged at the bottom ends of both sides of the tool holder body, stepped holes are processed on the fixed base plates, the upper front part of the tool holder body is processed to form a step, the middle part of the step is processed to form a first arc-shaped supporting step, a center hole is processed at the middle part of the tool holder body, rectangular grooves are arranged on both sides of the center hole and on the front side of the tool holder body, threaded holes are processed at the position where the rectangular grooves are located, and a top opening is processed at the top middle part of the center hole.

[0006] There are two groups of stepped holes on the fixed base plate on the same side, and they are arranged symmetrically.

[0007] The central hole is arranged concentrically with the first arc-shaped supporting step.

[0008] The center hole is chamfered at an edge portion located on the front side of the tool holder body.

[0009] The utility model has the following beneficial effects:

[0010] 1. The tool holder of the utility model can be used to install an ISO 7:24 NO.50 tail cone shank tool into an ISO 7:24 NO.60 transition tool holder, thereby solving the problem that the transition tool holder has no loading and unloading tool holder and the tool loading and unloading is inconvenient, reducing the risk of easily damaging the blade when loading and unloading the tool without a fixed position, improving the efficiency of loading and unloading the tool, and increasing the reliability of firm assembly.

[0011] 2. The symmetrically arranged stepped holes can realize reliable fixation of the entire tool holder body, thereby facilitating the subsequent installation of the transition tool handle.

[0012] 3. The above-mentioned concentric arrangement facilitates the subsequent reliable support of the transition handle, thereby ensuring assembly efficiency.

[0013] 4. The above-mentioned chamfering facilitates the subsequent installation of the transition tool handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is the front view of the utility model.

[0016] Figure 2 It is a top view of the utility model.

[0017] Figure 3 For the utility model Figure 1 Mid LL view.

[0018] In the figure: tool holder body 1, stepped hole 2, first arc-shaped supporting step 3, step 4, rectangular groove 5, threaded hole 6, center hole 7, top opening 8, chamfer 9, fixed base plate 10. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0020] Embodiment 1:

[0021] See also Figure 1-3A tool holder for loading and unloading tools for CNC boring and milling machines, comprising a tool holder body 1, a fixed bottom plate 10 is symmetrically arranged at the bottom ends of both sides of the tool holder body 1, a stepped hole 2 is processed on the fixed bottom plate 10, a step 4 is formed after processing on the upper front part of the tool holder body 1, and a first arc-shaped supporting step 3 is formed in the middle part of the step 4, a center hole 7 is processed in the middle part of the tool holder body 1, and rectangular grooves 5 are arranged on both sides of the center hole 7 and located on the front of the tool holder body 1, and a threaded hole 6 is processed at the location of the rectangular groove 5, and a top opening 8 is processed in the middle part of the top of the center hole 7. This tool holder can be used to load ISO7:24 NO.50 tail cone shank tools into ISO 7:24 NO.60 transition tool holders, solving the problem that the transition tool holder has no loading and unloading tool holder and the loading and unloading of tools is inconvenient, reducing the risk of easy damage to the blade when loading and unloading tools without a fixed position, improving the efficiency of loading and unloading tools, and increasing the reliability of firm assembly. During specific use, when the tool needs to be installed on the transition tool holder, first fix the loading and unloading tool holder, then install the transition tool holder on the loading and unloading tool holder, and then install the BT50 or JT50 tail taper shank tool to be assembled on the transition tool holder. After the BT50 or JT50 tail taper shank tool is installed, remove the entire transition tool holder and then install it as a whole into the inner taper hole of the ISO 7:24 NO.60 machine tool spindle, which improves the installation efficiency and effectively avoids the problem of damage to the tool during installation.

[0022] Furthermore, there are two groups of stepped holes 2 on the fixed bottom plate 10 on the same side, and they are arranged symmetrically. The symmetrically arranged stepped holes 2 can achieve reliable fixation of the entire tool holder body 1, thereby facilitating the subsequent installation of the transition tool handle.

[0023] Furthermore, the central hole 7 is arranged concentrically with the first arc-shaped support step 3. The above-mentioned concentric arrangement facilitates the subsequent reliable support of the transition handle, thereby ensuring assembly efficiency.

[0024] Furthermore, the center hole 7 is processed with a chamfer 9 at the edge portion located on the front side of the tool holder body 1. The chamfer 9 facilitates the subsequent installation of the transition tool handle.

[0025] Embodiment 2:

[0026] The method for using a tool holder for loading and unloading a tool for a CNC boring and milling machine comprises the following steps:

[0027] Step 1, Dimensional design of tool holder for loading and unloading tools:

[0028] According to the shape and size of the transition tool holder, the size of the tool holder for loading and unloading ISO 7:24 NO.50 tail taper tool is designed;

[0029] Step 2: Processing of loading and unloading tool holder:

[0030] The loading and unloading tool holder is produced and processed according to the size of the loading and unloading tool holder;

[0031] Step 3, installation of transition handle:

[0032] Fix the processed loading and unloading tool holder, and then fix the transition tool holder on the loading and unloading tool holder;

[0033] Step 4, installation of the tool:

[0034] Install the BT50 or JT50 taper shank tool on the transition shank;

[0035] Step 5, overall installation of the transition handle:

[0036] The transition tool holder with the installed tool is disassembled as a whole from the tool loading and unloading tool holder, and then installed as a whole into the inner taper hole of the ISO 7:24NO.60 machine tool spindle.

[0037] Embodiment 3:

[0038] The utility model designs and manufactures a tool holder for loading and unloading tools for a transition tool holder, and is applied to loading and unloading of ISO 7:24 NO.50 tail-taper shank tools converted to ISO 7:24 NO.60 tail-taper shank tools, making loading and unloading of ISO7:24 NO.50 tail-taper shank tools on the transition tool holder simple and reliable.

[0039] Specifically include:

[0040] 1. Design the tool holder for loading and unloading ISO 7:24 NO.50 tail cone shank tools according to the shape and size of the transition tool holder;

[0041] 2. Produce and manufacture tool holders for loading and unloading tools according to the detailed design drawings;

[0042] 3. Verify the reliability of the tool holder for loading and unloading the tool in this solution;

[0043] 4. Promote the application of tool holders for loading and unloading tools in CNC boring and milling equipment.

[0044] The following advantages are achieved by adopting the above-mentioned tool holder for loading and unloading the tool of the utility model:

[0045] 1. Use tool holders for loading and unloading tools, which makes loading and unloading tools stable and reliable, avoiding damage to the tools and reducing the risk of tool application.

[0046] 2. The application of tool holder for loading and unloading tools improves the efficiency of loading and unloading ISO 7:24 NO.50 tail cone shank tools and saves tool loading time, as shown in Table 1.

[0047] Table 1 Comparison of tool loading and unloading time

[0048]

[0049] 3. The smooth application of loading and unloading tool holders can apply a large number of standard ISO 7:24 NO.50 tail taper shank tools and reduce non-standard ISO 7:24 NO.60 tail taper shank tools, which can greatly reduce the tool application cost.

[0050] The tool holder for loading and unloading the tool of the utility model is suitable for assembling a BT50 or JT50 tail taper shank tool to a transition shank, and then installing the tool holder as a whole into the inner taper hole of an ISO 7:24 NO.60 machine tool spindle. The utility model has the advantages of simple structure, low cost and convenient use.

Claims

1. A tool holder for loading and unloading a tool for a CNC boring and milling machine, characterized in that: The tool holder body (1) comprises a tool holder body (1), wherein fixed bottom plates (10) are symmetrically arranged at the bottom ends of both sides of the tool holder body (1), and the fixed bottom plates (10) are processed with stepped holes (2). The upper front part of the tool holder body (1) is processed to form a step (4), and the middle part of the step (4) is processed to form a first arc-shaped supporting step (3). A center hole (7) is processed at the middle part of the tool holder body (1), and rectangular grooves (5) are arranged on both sides of the center hole (7) and on the front side of the tool holder body (1), and threaded holes (6) are processed at the position where the rectangular grooves (5) are located, and a top opening (8) is processed at the middle part of the top of the center hole (7).

2. The tool holder for loading and unloading a tool for a CNC boring and milling machine according to claim 1, characterized in that: There are two groups of stepped holes (2) on the fixed base plate (10) on the same side, and they are arranged symmetrically.

3. The tool holder for loading and unloading a tool for a CNC boring and milling machine according to claim 1, characterized in that: The central hole (7) is arranged concentrically with the first arc-shaped supporting step (3).

4. The tool holder for loading and unloading a tool for a CNC boring and milling machine according to claim 3, characterized in that: The center hole (7) is processed with a chamfer (9) at an edge portion located on the front side of the tool holder body (1).

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