Novel mounting tool for assembling cutter hitting rod of main shaft

Abstract

The utility model provides a novel installation tool for assembling a main shaft cutter hitting rod, which relates to the technical field of mechanical main shaft assembling, and comprises a supporting seat, an adapter rod, a puller pull rod, an adapter and a thread rotating joint, the puller pull rod is arranged on the supporting seat through the thread rotating joint, and the adapter rod is arranged on the supporting seat through the thread rotating joint. The threaded rotary joint is in threaded connection with the supporting seat, the adapter is movably installed on the puller pull rod, and the end, corresponding to the shaft core, of the adapter is in threaded connection with an adapter rod located in the shaft core; during assembly, the pull rod provided with the spring set is assembled into the shaft core, the main shaft is horizontally placed on a working table, the adapter rod is sleeved into threads at the front end of the pull rod from the front end of the shaft core, the supporting seat is fixed on a step surface at the front end of the shaft core through a fastening screw, and then threads at the tail end of the adapter rod of the puller are sleeved into the adapter; the threaded rotary joint is rotated by a wrench to drive the switching rod and the pull rod to move forwards, so that the effect of compressing the spring is achieved, and the unclamping rod can be mounted in the shaft core mounting hole at the moment.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical spindle assembly, in particular to a new type of installation tool for assembling a cutter rod during the mechanical spindle assembly process of a machine tool. Background Art

[0002] The defects of the current machine tool mechanical spindle assembly tool bar are as follows:

[0003] 1. When installing the tool rod on the machine tool spindle, the tie rod group needs to be in a compressed state. The traditional installation method is to install the tie rod group into the spindle core after assembling it, and then fix the spindle body, and use a press or a tool cylinder to compress the tie rod group to reach the preset position. At this time, the tool rod can be installed into the core. When assembling the tool rod in this way, the spindle body is fixed, and the elastic force of the tie rod group spring preloaded on the core will be indirectly applied to the bearing. When the tie rod group spring is compressed to a large extent, it is easy to damage the bearing, especially the small-sized ultra-precision bearing.

[0004] 2. The traditional method of installing the tool bar requires the use of a press or a special installation fixture to fix the spindle body. The actual assembly is time-consuming and labor-intensive, and there is a risk of bumping and damaging the product appearance and heavy objects injuring people during the process of moving the spindle.

[0005] Therefore, we propose a new installation tool for spindle tool bar assembly. Utility Model Content

[0006] The purpose of the utility model is to provide: a new type of installation tool for assembling a main shaft tool bar to solve the above-mentioned shortcomings in the technology.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new type of installation tool for assembling a spindle cutting rod, comprising an installation tool, a shaft core and a cutting rod, the installation tool and the cutting rod are located at both ends of the shaft core and connected inside the shaft core, a spring is provided at one end of the shaft core corresponding to the cutting rod, the pull rod end of the cutting rod is connected to the shaft core and passes through the spring, the installation tool comprises a support seat, a transfer rod, a pull rod, an adapter and a threaded rotary joint, the pull rod is installed on the support seat through a threaded rotary joint, and the threaded rotary joint is threadedly connected to the support seat, the adapter is movably installed on the pull rod, and one end of the adapter corresponding to the shaft core is threadedly connected to the transfer rod located inside the shaft core.

[0008] Furthermore, the support seat is bolted to the front end step of the shaft core, and the bottom of the support seat is in contact with the installation surface of the front sealing cover of the shaft core.

[0009] Furthermore, both ends of the adapter rod are respectively tapped with internal threads and external threads, and are threadedly connected to the pull rod via the internal threads, and are threadedly connected to the adapter via the external threads.

[0010] Furthermore, the pull rod passes through the adapter and is clamped in the adapter via a protrusion, and the protrusion is designed to fit the end surface of the inner hole of the adapter, and the adapter can rotate on the pull rod.

[0011] Furthermore, a wrench position is reserved at the tail end of the pull rod, and the pull rod wrench position is rotated by a wrench to make its end face close to the end face of the inner hole of the adapter. The threaded rotary joint is also adapted to a wrench on the outside, and the threaded rotary joint is twisted by a wrench to convert the rotational motion into linear motion to drive the pull rod forward.

[0012] Furthermore, the outer periphery of the pull rod is threadedly connected with a YSF nut, a spring washer is provided between the pull rod YSF nut and the spring, and the spring washer is pressed against the inner hole step surface of the shaft core through the spring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. This new tool for installing the knife rod adopts the structure of a simple puller. When using the tool to assemble the knife rod, there is no need to fix the main shaft body, nor is there a need to use a press or a knife cylinder. The use conditions are simple. When assembling, the pull rod with the spring group installed is assembled into the shaft core, the main shaft is placed horizontally on the workbench, the adapter rod is inserted from the front end of the shaft core into the front end thread of the pull rod, the support seat is fixed to the front end step surface of the shaft core with a fastening screw, and then the tail end of the puller adapter rod is threaded into the adapter, and the threaded rotary joint can be driven by a wrench to move the adapter rod and the pull rod forward to achieve the effect of compressing the spring. At this time, the knife rod can be installed in the shaft core mounting hole.

[0015] 2. When using this tool to install the cutter bar, the main force points are the installation surface of the front sealing cover at the front end of the shaft core and the bearing surface of the spring washer in the inner hole of the shaft core. The bearing is no longer subjected to the axial force generated by the spring compression, reducing the risk of bearing damage during assembly.

[0016] 3. When using this tool to install the tooling bar, the assembler no longer needs to move the heavy spindle to the press or a specific installation fixture, which effectively improves work efficiency and avoids the risk of personal injury that may occur during the spindle transportation process.

[0017] 4. This solution tool can be used for spindles of different specifications by simply changing the size of related parts, and is universally applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of a new type of installation tool for assembling a spindle tool bar provided by the utility model;

[0019] Figure 2A schematic diagram of the overall structure of a new type of installation tool for assembling a spindle tool bar provided by the utility model;

[0020] Figure 3 The utility model provides an overall structural anatomical diagram of a novel installation tool for assembling a spindle tool bar.

[0021] Legend:

[0022] 1. Installation tools; 11. Support base; 12. Adapter rod; 13. Puller rod; 14. Adapter; 15. Threaded swivel joint;

[0023] 2. Shaft core; 21. Spring;

[0024] 3. Knife rod; 31. Pull rod; 32. YSF nut; 33. Spring washer. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant literature, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0029] Example

[0030] like Figure 1-3 As shown, the utility model provides a technical solution: a new type of installation tool for assembling a spindle cutting rod, comprising an installation tool 1, a shaft core 2 and a cutting rod 3, the installation tool 1 and the cutting rod 3 are located at both ends of the shaft core 2 and connected inside the shaft core 2, a spring 21 is provided at one end of the shaft core 2 corresponding to the cutting rod 3, the end of the pull rod 31 of the cutting rod 3 is docked in the shaft core 2 and passes through the spring 21, the installation tool 1 comprises a support seat 11, a transfer rod 12, a pull rod 13, an adapter 14 and a threaded rotary joint 15, the pull rod 13 is installed on the support seat 11 through the threaded rotary joint 15, and the threaded rotary joint 15 is threadedly connected to the support seat 11, the adapter 14 is movably installed on the pull rod 13, the pull rod 13 and the adapter 14 are used to adjust the distance, and the adapter 14 is threadedly connected to the transfer rod 12 located inside the shaft core 2 at one end corresponding to the shaft core 2, and the transfer rod 12 is used to drive the pull rod 31 to move forward and compress the spring 21.

[0031] To supplement the above embodiment, the support seat 11 is bolted to the front end step of the shaft core 2, and the bottom of the support seat 11 fits with the installation surface of the front sealing cover of the shaft core 2, so as not to damage the end face of the shaft core 2 during use.

[0032] The two ends of the adapter rod 12 are respectively tapped with internal threads and external threads, and are threadedly connected to the pull rod 31 through the internal threads, and are threadedly connected to the adapter 14 through the external threads.

[0033] The pull rod 13 passes through the adapter 14 and is clamped in the adapter 14 through a protrusion, and the protrusion is designed to fit the end surface of the inner hole of the adapter 14, and the adapter 14 can rotate on the pull rod 13.

[0034] A wrench position is reserved at the tail end of the pull rod 13, and the wrench position of the pull rod 13 is rotated by a wrench to make its end face close to the end face of the inner hole of the adapter 14. The threaded rotary joint 15 is also adapted to the wrench on the periphery, and the threaded rotary joint 15 is twisted by a wrench to convert the rotational motion into linear motion, driving the pull rod 31 forward so that the spring 21 reaches a preset compression state. At this time, the knife rod 3 can be installed into the shaft core 2.

[0035] like Figure 1 As shown, the outer thread of the pull rod 31 is connected with a YSF nut 32, and a spring washer 33 is provided between the pull rod 31, the YSF nut 32 and the spring 21, and the spring washer 33 is pressed against the step surface of the inner hole of the shaft core 2 through the spring 21. When the pull rod 31 moves forward relative to the shaft core 2, the spring washer 33 is tightly attached to the step surface of the inner hole of the shaft core 2, limiting the forward movement of the spring 21, thereby achieving the effect of compressing the spring 21.

[0036] It should be noted that the front end of the spring washer 33 rests on the step surface of the inner hole of the shaft core 2 and is fixed in position. When the pull rod 31 moves forward, the front end position of the spring 21 is fixed by the spring washer 33 and is then subjected to force to reach a preset compression state.

[0037] Through the above embodiments, the assembly steps of the utility model are as follows:

[0038] ① Before assembly, check to ensure that the parts are in good condition and apply an appropriate amount of lubricating grease to the threads of the parts.

[0039] ②Insert the threaded rotary joint 15 into the threaded hole from the top of the support seat 11.

[0040] ③ After passing the pull rod 13 through the inner hole of the adapter 14, it is installed into the inner thread hole of the threaded rotary joint 15 from the bottom of the support seat 11, and the preliminary assembly of the new assembly tool is completed.

[0041] ④ In actual use, insert the internal thread end of the adapter rod 12 into the thread end of the pull rod 31 and tighten it, and lock the external thread end into the internal thread hole of the adapter 14. After adjusting the distance, it can be used normally.

[0042] The working process of the utility model is as follows: first, the support seat 11 is fixed to the front end step of the shaft core 2 with screws, wherein the bottom of the support seat 11 is fitted with the installation surface of the front sealing cover, and the two ends of the adapter rod 12 are respectively tapped with internal threads and external threads, one end of the internal thread is connected to the pull rod 31, and the other end of the external thread is connected to the adapter 14. When in use, the threads at both ends are tightened, and a wrench position is reserved at the tail end of the pull rod 13. The pull rod 13 is rotated by a wrench to make its end face fit tightly with the end face of the inner hole of the adapter 14, and the threaded rotary joint 15 is twisted with a wrench. The rotational motion of the thread is converted into linear motion to drive the pull rod 31 forward so that the spring 21 reaches a preset compression state. At this time, the knife rod 3 can be installed in the shaft core 2.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of installation tool for assembling a spindle cutting rod, comprising an installation tool (1), a shaft core (2) and a cutting rod (3), wherein the installation tool (1) and the cutting rod (3) are located at both ends of the shaft core (2) and connected inside the shaft core (2), a spring (21) is provided at one end of the shaft core (2) corresponding to the cutting rod (3), and a pull rod (31) end of the cutting rod (3) is butt-jointed with the shaft core (2) and passes through the spring (21), characterized in that: The installation tool (1) comprises a support seat (11), a transfer rod (12), a pull rod (13), an adapter (14) and a threaded rotary joint (15); the pull rod (13) is installed on the support seat (11) via the threaded rotary joint (15), and the threaded rotary joint (15) is threadedly connected to the support seat (11); the adapter (14) is movably installed on the pull rod (13), and one end of the adapter (14) corresponding to the shaft core (2) is threadedly connected to the transfer rod (12) located inside the shaft core (2).

2. A new type of installation tool for assembling a spindle tool bar according to claim 1, characterized in that: The support seat (11) is bolted to the front end step of the shaft core (2), and the bottom of the support seat (11) is in contact with the installation surface of the front sealing cover of the shaft core (2).

3. A new type of installation tool for assembling a spindle tool bar according to claim 1, characterized in that: The two ends of the adapter rod (12) are respectively tapped with internal threads and external threads, and are threadedly connected to the pull rod (31) via the internal threads, and are threadedly connected to the adapter (14) via the external threads.

4. A new type of installation tool for assembling a spindle and a tool bar according to claim 1, characterized in that: The pull rod (13) passes through the adapter (14) and is clamped in the adapter (14) via a protrusion, and the protrusion is designed to fit the end surface of the inner hole of the adapter (14), and the adapter (14) can rotate on the pull rod (13).

5. A new type of installation tool for assembling a spindle tool bar according to claim 4, characterized in that: The rear end of the pull rod (13) is provided with a wrench position, and the wrench position of the pull rod (13) is rotated by a wrench to make its end face close to the end face of the inner hole of the adapter (14). The threaded rotary joint (15) is also adapted to a wrench on the periphery, and the threaded rotary joint (15) is twisted by a wrench to convert the rotational motion into linear motion to drive the pull rod (31) forward.

6. A new type of installation tool for assembling a spindle tool bar according to claim 5, characterized in that: The outer periphery of the pull rod (31) is threadedly connected to a YSF nut (32), a spring washer (33) is provided between the pull rod (31), the YSF nut (32) and the spring (21), and the spring washer (33) is pressed against the inner hole step surface of the shaft core (2) through the spring (21).

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