Special fixture for grinding thread milling cutter
By designing a special fixture for thread milling cutter re-grinding, the problems of high difficulty and poor accuracy in milling cutter repair were solved, achieving stable clamping and high-precision re-grinding of milling cutters, and reducing milling cutter consumption and steel rolling costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-07
AI Technical Summary
Milling cutters are difficult to repair and have poor repair accuracy in steel rolling production lines, resulting in high consumption and high costs.
Design a special fixture for regrinding thread milling cutters, including a support body and a pressure plate. By setting up structures such as a forward tilt angle, a tool groove, a pressure plate positioning bolt, and a tool tip clamping bolt, the fixture can achieve stable clamping and precise regrinding of the milling cutter.
It improves the repair accuracy of milling cutters, extends the life of milling cutters by 2-3 times, reduces the consumption of milling cutters, and reduces the cost of steel rolling.
Smart Images
Figure CN224088779U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to thread milling cutter repair auxiliary device technical field, specifically is a kind of thread milling cutter repair special fixture. BACKGROUND
[0002] In the steel rolling production line, the crescent pattern used in the production of threaded steel is processed by a milling machine. The milling cutter used on the milling machine is a consumable spare part, which has a large consumption and a high price, resulting in high cost. Most of the damaged milling cutters are the blade edges at the end of the milling cutter, which are worn out and scrapped directly after each use, resulting in cost waste.
[0003] The milling cutter is small in size and difficult to repair using a universal knife sharpener. It cannot be effectively and firmly clamped, resulting in high difficulty and poor precision in milling cutter repair.
[0004] Therefore, a thread milling cutter repair special fixture is designed to solve the technical problems of high difficulty and poor precision in milling cutter repair in the prior art. SUMMARY
[0005] In view of the problems in the prior art, the purpose of the utility model is to provide a thread milling cutter repair special fixture.
[0006] The technical solution adopted by the utility model to solve its technical problems is: a thread milling cutter repair special fixture, comprising a support body and a pressing plate, the end of the support body is provided with a front inclined angle, a cutter slot is formed inward from the end of the upper end of the front inclined angle, the pressing plate is connected to the pressing plate through a pressing plate positioning bolt, a cutter tip compression wire hole is formed in the inner side of the end of one end of the pressing plate, and a cutter tip compression bolt is installed on the cutter tip compression wire hole.
[0007] Specifically, one side of the support body is trapezoidal, and the other side is rectangular.
[0008] Specifically, two pressing plate positioning wire holes are formed in the upper end of the trapezoidal side of the support body.
[0009] Specifically, the pressing plate is trapezoidal, and two pressing plate positioning holes and one cutter tip compression wire hole are formed in the pressing plate.
[0010] Specifically, the pressing plate positioning bolt is inserted into the pressing plate positioning hole, the pressing plate positioning bolt is screwed into the pressing plate positioning wire hole, the cutter tip compression bolt is screwed into the cutter tip compression wire hole, and the head of the cutter tip compression bolt is in contact with the upper end surface of the milling cutter in the cutter slot.
[0011] Specifically, the thickness of the pressing plate is 6mm, and the thickness of the support body is 15mm.
[0012] Compared with the prior art, the utility model has the following advantages:
[0013] This utility model designs a special fixture for grinding thread milling cutters, enabling the reuse of milling cutters, significantly reducing the consumption of milling cutters, and thus reducing the cost of steel rolling.
[0014] This utility model designs a special fixture for re-grinding thread milling cutters, which improves the repair accuracy and extends the life of each milling cutter by 2-3 times while ensuring the repair accuracy. Attached Figure Description
[0015] Fig. 1 The front view of a special fixture for regrinding thread milling cutters;
[0016] Fig. 2 Front view of the bracket body of the special fixture for regrinding thread milling cutters;
[0017] Fig. 3 The main view of the pressure plate of the special fixture for regrinding thread milling cutters.
[0018] like Figs. 1-3 As shown: 1-blade tip clamping bolt, 2-pressure plate positioning bolt, 3-pressure plate, 4-bracket body, 5-forward tilt angle, 6-pressure plate positioning screw hole, 7-blade groove, 8-blade tip clamping screw hole, 9-pressure plate positioning hole. Detailed Implementation
[0019] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0020] like Figs. 1-3 The present invention relates to a special fixture for regrinding thread milling cutters, comprising a support body 4 and a pressure plate 3. The support body 4 is provided with a forward tilt angle 5 at its end. A tool groove 7 is formed from the upper end of the forward tilt angle 5 inward. The pressure plate 3 is connected to the tool groove 7 by a pressure plate positioning bolt 2. A tool tip clamping screw hole 8 is formed on the inner side of the end of one end of the pressure plate 3. A tool tip clamping bolt 1 is installed on the tool tip clamping screw hole 8.
[0021] One side of the support body 4 is trapezoidal, and the other side is rectangular.
[0022] Two pressure plate positioning screw holes 6 are opened at the upper end of the trapezoidal side of the bracket body 4.
[0023] The pressure plate 3 is trapezoidal, and two pressure plate positioning holes 9 and a knife tip clamping wire hole 8 are opened on the pressure plate 3.
[0024] A pressure plate positioning bolt 2 is inserted into the pressure plate positioning hole 9. The pressure plate positioning bolt 2 is threaded into the pressure plate positioning thread hole 6. A tool tip clamping bolt 1 is threaded into the tool tip clamping thread hole 8. The head of the tool tip clamping bolt 1 rests on the upper end face of the milling cutter in the tool groove 7.
[0025] The thickness of the pressure plate 3 is 6mm, and the thickness of the bracket body 4 is 15mm.
[0026] When using this utility model, after installing the milling cutter into the end slot 7, press it down with the pressure plate 3, tighten the pressure plate positioning bolt 2 into place, and press the milling cutter with the tip clamping bolt 1. Then, install and fix the special fixture for thread milling cutter grinding on the grinding machine, draw the milling cutter head pattern, and grind the cutter head according to the pattern.
[0027] The special fixture for re-grinding thread milling cutters can be designed and manufactured with positioning grooves 7 according to the external dimensions of the milling cutter to accommodate smaller individual milling cutters and solve the problem of milling cutter clamping.
[0028] The bracket body 4 of the special fixture for thread milling cutter regrinding can be firmly installed and fixed on the grinding machine, providing a stable foundation for the tooling.
[0029] After the milling cutter is installed into the end slot 7, it is held in place by the pressure plate 3, and the positioning bolts 2 of the pressure plate are tightened in place to achieve a firm and reliable clamping of the milling cutter.
[0030] Draw the milling cutter head pattern, and then reflash the cutter head according to the pattern to ensure repair accuracy, enabling the reuse of the milling cutter, extending its life by 2-3 times, and significantly reducing the consumption of milling cutters.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A special fixture for regrinding thread milling cutters, characterized in that, The bracket includes a support body and a pressure plate. The support body has a forward tilting angle at one end. A knife groove is formed at the upper end of the forward tilting angle from the end inward. The pressure plate is connected to the forward tilting angle by a pressure plate positioning bolt. A knife tip clamping screw hole is formed on the inner side of one end of the pressure plate. A knife tip clamping bolt is installed on the knife tip clamping screw hole.
2. The special fixture for regrinding thread milling cutters according to claim 1, characterized in that, One side of the support body is trapezoidal, and the front part of the front inclined angle of the support body is provided with an inclined arc surface. The other side of the support body is rectangular, and the rectangular side of the support body is fixed to the grinding machine by bolts.
3. The special fixture for regrinding thread milling cutters according to claim 2, characterized in that, Two pressure plate positioning screw holes are opened at the upper end of the trapezoidal side of the bracket body.
4. The special fixture for regrinding thread milling cutters according to claim 1, characterized in that, The pressure plate is trapezoidal, and two pressure plate positioning holes and one knife tip clamping wire hole are provided on the pressure plate.
5. The special fixture for regrinding thread milling cutters according to claim 4, characterized in that, A pressure plate positioning bolt is inserted into the positioning hole of the pressure plate, and the pressure plate positioning bolt is threaded into the positioning thread hole of the pressure plate. A cutting tip clamping bolt is threaded into the cutting tip clamping thread hole, and the head of the cutting tip clamping bolt rests on the upper end face of the milling cutter in the cutting groove.
6. The special fixture for regrinding thread milling cutters according to claim 5, characterized in that, The thickness of the pressure plate is 6mm, and the thickness of the bracket body is 15mm.