Forming milling cutter with cutter head convenient to replace

Abstract

The utility model belongs to the technical field of forming milling cutters, and discloses a forming milling cutter with a cutter head convenient to replace, which comprises a cutter handle main body, a connector is mounted on the surface of the cutter handle main body, a threaded rod is in threaded connection in a threaded hole formed in the surface of the connector, and a milling cutter head is mounted at one end of the threaded rod. A connecting rod is installed at the other end of the threaded rod, one end of the connecting rod penetrates through the connector and is inserted into a through hole formed in the surface of the knife handle body, a through groove is formed in the surface of the knife handle body, an elastic piece is installed on the surface of the through groove, and an inserting button is installed on the surface of the side, close to the connecting rod, of the elastic piece; the milling cutter has the advantages that the damaged milling cutter used on the cutter handle can be replaced, the situation that the milling cutter and the cutter handle are integrally scrapped due to the fact that the milling cutter is damaged is avoided, and cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of profile milling cutter, specifically a profile milling cutter convenient to replace tool bit. BACKGROUND

[0002] In the field of mechanical processing, profile milling cutters are widely used in the milling of various complex-shaped parts, such as the precise groove and tooth shape processing of aircraft engine blades and automobile parts. It can process a workpiece that meets specific contour requirements at one time, greatly improving processing efficiency and precision. However, the traditional profile milling cutter has many problems in tool bit replacement, which seriously restricts the smoothness and economy of the processing process.

[0003] From the perspective of processing efficiency, the traditional profile milling cutter bit and the cutter body are designed in an integrated manner. Once the tool bit is worn out, the entire milling cutter needs to be replaced. This not only wastes the un-worn cutter body part, but also requires downtime during the milling cutter replacement process, consuming a lot of time. According to statistics, the average downtime for each milling cutter replacement can be more than 30 minutes. For large-scale, continuous production enterprises, frequent downtime seriously reduces equipment utilization and increases production costs.

[0004] In terms of processing cost, the integrated profile milling cutter is scrapped as a whole, resulting in high tool procurement costs. For example, a high-precision milling cutter for processing aircraft parts can cost thousands of yuan. If it is replaced frequently, the tool procurement costs of the enterprise will be overwhelming. Moreover, the worn cutter body cannot be reused, causing resource waste and not meeting the current green manufacturing concept.

[0005] Therefore, a profile milling cutter with a tool bit that is easy to replace is proposed to solve the above problems. INVENTION CONTENTS

[0006] To solve the problems raised in the background art, the utility model provides a profile milling cutter with a tool bit that is easy to replace, which can replace the milling cutter on the tool holder after use and damage, avoid the entire milling cutter and tool holder being scrapped due to damage, and effectively reduce costs.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a profile milling cutter with a tool bit that is easy to replace, including a tool holder main body, a connecting head installed on the surface of the tool holder main body, a threaded hole opened on the surface of the connecting head and threadedly connected with a threaded rod, a milling cutter head installed on one end of the threaded rod, a connecting rod installed on the other end of the threaded rod, the connecting rod penetrating through the connecting head and being inserted into a through hole opened on the surface of the tool holder main body, a through slot opened on the surface of the tool holder main body, an elastic sheet installed on the surface of the through slot, a knob installed on the surface of the side of the elastic sheet close to the connecting rod, the knob being inserted into a plug hole opened on the surface of the connecting rod, and a protection mechanism installed on the surface of the tool holder main body.

[0008] Preferably, the two sides of the elastic sheet are provided with pull tabs, and the surfaces of the pull tabs are uniformly provided with anti-skid lines.

[0009] Preferably, the protection mechanism comprises a protection cover, the inside of the through slot is clamped with the protection cover, the surface of the protection cover is provided with a clamping groove matched with the pull tab, and the pull tab and the protection cover are clamped through the clamping groove.

[0010] Preferably, the two sides of the protection cover are provided with damping strips, and the damping strips are attached to the through slot.

[0011] Preferably, the two elastic sheets are symmetrically arranged on the two sides of the tool shank body.

[0012] Preferably, the surface of the side of the protection cover away from the pull tab is provided with a handle.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a threaded rod and a connecting rod are arranged, so that the tool shank body and the milling cutter head can be disassembled and replaced, the position of the milling cutter head is accurate after installation, displacement does not occur in the milling process, the machining precision is guaranteed, the milling cutter head can be effectively prevented from falling off due to vibration and other reasons in the high-speed milling process, the safety of the operator is ensured, and equipment damage or safety accidents caused by the falling off of the milling cutter head are avoided.

[0015] 2. The utility model discloses a protection mechanism is arranged, so that foreign matters can be prevented from entering the through slot and affecting the normal work of the elastic sheet and the knob, meanwhile, the operator is prevented from accidentally touching the knob and causing the milling cutter head to loosen, and the operation safety is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a structure schematic view of the connecting head and the threaded rod of the utility model;

[0018] Figure 3 It is a cross section structure schematic view of the tool shank body of the utility model;

[0019] Figure 4 It is a structure schematic view of the elastic sheet and the knob of the utility model.

[0020] In the drawing: 1, tool shank body;2, connecting head;3, threaded rod;4, milling cutter head;5, connecting rod;6, through slot;7, elastic sheet;8, knob;9, protection mechanism;91, protection cover;92, damping strip;10, pull tab. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] As shown in Figures 1 to 4 The utility model provides a form milling cutter convenient to change tool bit, including handle main part 1, the surface of handle main part 1 is installed with connecting head 2, the threaded hole of the surface of connecting head 2 is connected with threaded rod 3 with screw thread, one end of threaded rod 3 is installed with milling cutter head 4, the other end of threaded rod 3 is installed with connecting rod 5, one end of connecting rod 5 passes through connecting head 2 and is inserted in the through hole of the surface of handle main part 1, the surface of handle main part 1 is seted up with through slot 6, the surface of through slot 6 is installed with elastic sheet 7, the surface of the side close to connecting rod 5 of elastic sheet 7 is installed with knob 8, knob 8 is inserted in the insertion hole of the surface of connecting rod 5, the surface of handle main part 1 is installed with protection mechanism 9, thereby can carry out dismounting replacement processing to handle main part 1 and milling cutter head 4, and can ensure that milling cutter head 4 is accurate in position after installation, and displacement does not occur in the milling process, guaranteeing processing accuracy, effectively preventing milling cutter head 4 from accidentally falling off due to vibration during high-speed milling, ensuring the safety of operating personnel and avoiding equipment damage or safety accidents caused by the falling of milling cutter head 4.

[0023] Specifically, the two sides of the elastic sheet 7 are each provided with a pull tab 10, and the surface of the pull tab 10 is uniformly provided with anti-slip lines. When replacing the milling cutter head 4 and pulling the elastic sheet 7, better friction force can be provided for the operator, making it easier to apply force and making the operation more comfortable and smooth, thereby improving the user's operation experience.

[0024] As shown in Figures 1 to 4 The protection mechanism 9 includes a protective cover 91, which is connected to the inside of the through slot 6. The surface of the protective cover 91 is provided with a clamping groove that is adapted to the pull tab 10. The pull tab 10 and the protective cover 91 are clamped through the clamping groove, preventing foreign matter from entering the through slot 6 and affecting the normal operation of the elastic sheet 7 and the knob 8, and preventing the milling cutter head 4 from loosening due to accidental touch of the knob 8 by the operator, thereby further improving the operation safety.

[0025] Furthermore, the two sides of the protective cover 91 are each provided with a damping strip 92, which is in close contact with the through slot 6, so that the protective cover 91 is tightly attached to the through slot 6.

[0026] As shown in Figures 1 to 4 The two elastic sheets 7 are symmetrically arranged on the two sides of the handle main part 1.

[0027] It is worth noting that the handle is installed on the side surface of the protective cover 91 away from the pull tab 10, so that the operator can conveniently pull the protective cover 91.

[0028] The structure of the tool shank body 1 is prior art and will not be described in detail; meanwhile, the utility model also includes a power supply, a controller, a switch and the like, which are not the main technical points of the patent and will not be described in detail. The wiring diagram of the motor is common knowledge in the art, and its working principle is a well-known technology. The model is selected according to actual use, so the control mode and wiring arrangement of the motor will not be explained in detail.

[0029] Working principle and process: when the milling cutter head 4 needs to be replaced, the pull tab 10 on both sides of the elastic sheet 7 is pulled by hand. Since the surface of the pull tab 10 has anti-skid lines, it is convenient for the user to apply force, and the elastic sheet 7 is deformed by pulling the pull tab 10. The knob 8 is pulled out of the insertion hole on the surface of the connecting rod 5, and then the threaded rod 3 is rotated in the opposite direction, so that it is gradually separated from the connecting head 2, and at the same time the connecting rod 5 is pulled out of the through hole of the tool shank body 1, and the old milling cutter head 4 is removed.

[0030] When the milling cutter is not used, the protective cover 91 is clamped into the through slot 6. The clamping groove on the surface of the protective cover 91 is clamped with the pull tab 10, which fixes the protective cover 91. The damping strips 92 on both sides of the protective cover 91 are in close contact with the through slot 6, which increases the friction between the protective cover 91 and the through slot 6, so that the protective cover 91 is not easy to fall off, and the milling cutter is protected, preventing the milling cutter head 4 and other components from being damaged.

[0031] When the milling cutter needs to be used again, the protective cover 91 is removed from the through slot 6 through the handle on the protective cover 91. First, the connecting rod 5 is inserted into the inside of the tool shank body 1, and then the threaded rod 3 is rotated to be threadedly connected with the connecting head 2, and at the same time one end of the connecting rod 5 is gradually inserted into the through hole formed on the surface of the tool shank body 1.

[0032] When the connecting rod 5 is completely inserted into the through hole of the tool shank body 1, the operator releases the elastic sheet 7, and the knob 8 is automatically inserted into the insertion hole formed on the surface of the connecting rod 5 under the elastic action of the elastic sheet 7, so as to fix the position of the connecting rod 5, and the installation of the milling cutter head 4 is completed.

[0033] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A shaped milling cutter for facilitating replacement of a cutting head, comprising a shank body (1), characterised in that: The surface of the tool shank body (1) is provided with a connecting head (2), a threaded hole is formed in the surface of the connecting head (2), a threaded rod (3) is threadedly connected into the threaded hole, one end of the threaded rod (3) is provided with a milling cutter head (4), the other end of the threaded rod (3) is provided with a connecting rod (5), one end of the connecting rod (5) penetrates through the connecting head (2) and is inserted into a through hole formed in the surface of the tool shank body (1), a through slot (6) is formed in the surface of the tool shank body (1), an elastic sheet (7) is mounted on the surface of the through slot (6), a knob (8) is mounted on the side surface of the elastic sheet (7) close to the connecting rod (5), the knob (8) is inserted into a insertion hole formed in the surface of the connecting rod (5), and a protection mechanism (9) is mounted on the surface of the tool shank body (1).

2. The profile milling cutter with replaceable cutting head according to claim 1, characterized in that: Pull tabs (10) are mounted on both sides of the elastic sheet (7), and anti-skid lines are uniformly formed in the surface of the pull tabs (10).

3. The profile milling cutter with replaceable cutting head according to claim 2, characterized in that: The protection mechanism (9) comprises a protection cover (91), the protection cover (91) is clamped in the through slot (6), an accommodation groove is formed in the surface of the protection cover (91) and matched with the pull tabs (10), and the pull tabs (10) and the protection cover (91) are clamped through the accommodation groove.

4. The indexable shaped milling cutter according to claim 3, characterized in that: Damping strips (92) are mounted on both sides of the protection cover (91) and matched with the through slot (6).

5. A profile milling cutter with replaceable tips as claimed in claim 4, wherein: The two elastic sheets (7) are symmetrically arranged on both sides of the tool shank body (1).

6. A profile milling cutter with replaceable tips as claimed in claim 5, wherein: A handle is mounted on the side surface of the protection cover (91) away from the pull tabs (10).

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