Cutter fixing structure for milling machine

Abstract

The utility model discloses a cutter fixing structure for a milling machine, which comprises a cutter mounting unit and a cutter fixing unit, the cutter mounting unit comprises a cutter mounting seat and a connecting rod fixedly mounted at the center of the upper side wall of the cutter mounting seat, a plurality of clamping plates with symmetrical positions are arranged on the lower side of the cutter mounting seat, and a milling cutter is jointly clamped by the plurality of clamping plates; the quick positioning unit comprises a plurality of spherical sliding cavities formed in the cutter mounting base and spherical sliding blocks slidably mounted in the spherical sliding cavities, strip-shaped openings communicating with the corresponding spherical sliding cavities are formed in the upper side wall and the lower side wall of the cutter mounting base correspondingly, and the width of the strip-shaped openings is smaller than the inner diameter of the spherical sliding cavities; the lower end of the spherical sliding block is fixedly connected with a first connecting column. According to the utility model, a plurality of nuts do not need to be tightened in sequence by using a special tool, the milling cutter is positioned and mounted more quickly, all parts are connected into a whole, the defect that the parts are easy to lose is effectively overcome, and meanwhile, the milling cutters with different specifications can be positioned and mounted.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutter installation, in particular to a cutter fixing structure for a milling machine. Background Art

[0002] In recent years, milling machines are machine tools that use milling cutters to mill workpieces. It can process planes, grooves, various curved surfaces, gears, etc. The tool fixing structure, as the name implies, is a structure that is fixedly installed on the milling machine to position the milling cutter used in milling machine processing.

[0003] In the field of milling cutter installation, in actual use, in order to improve the installation and positioning effect of the milling cutter, a plurality of pins are inserted into the corresponding sockets of the milling cutter in sequence, and then the nuts are tightened to position the pins, and then the milling cutter is installed. This type of fixed installation method requires the use of special tools to loosen or tighten multiple nuts in sequence during disassembly and installation, which takes a long time, and the parts are separated from each other, which easily causes the loss of parts. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the existing tool fixing structure for milling machines, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a tool fixing structure for a milling machine, which is suitable for solving the problem that special tools need to be used to loosen or tighten multiple nuts in sequence during disassembly and installation, which takes a long time and the parts are separated from each other, which easily causes the loss of parts.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a tool fixing structure for a milling machine, comprising:

[0008] A tool mounting unit, comprising a tool mounting seat and a connecting rod fixedly mounted at the center of an upper side wall of the tool mounting seat, wherein a plurality of symmetrical clamping plates are arranged at the lower side of the tool mounting seat, and the plurality of clamping plates clamp a milling cutter together;

[0009] A quick positioning unit, which includes a plurality of spherical sliding cavities opened in a tool mounting seat and a spherical slider slidably installed in the spherical sliding cavity, the upper and lower side walls of the tool mounting seat are provided with strip openings connected to the corresponding spherical sliding cavities, and the width of the strip opening is smaller than the inner diameter of the spherical sliding cavity, the lower end of the spherical slider is fixedly connected to a first connecting column, the lower end of the first connecting column passes through the strip opening and is fixedly connected to the top of the clamping plate, the upper end of the spherical slider is fixedly connected to a second connecting column, the vertical sliding sleeve on the connecting rod is provided with a lifting sleeve, each of the top ends of the second connecting columns are hinged to the lifting sleeve through a hinged arm, the side wall of the lifting sleeve is threadedly connected with a positioning bolt, and the positioning bolt passes through the lifting sleeve and abuts against the connecting rod.

[0010] As a preferred solution of the tool fixing structure for a milling machine described in the utility model, the tool fixing structure also includes a tool cooling unit, which includes an annular liquid storage chamber opened inside the tool mounting seat, and the lower side wall of the tool mounting seat is fixedly connected to a plurality of spray pipes connected to the annular liquid storage chamber, each of the spray pipes is fixedly installed with a spray nozzle at the lower end, and a water pump connected to the spray pipe is fixedly installed on the lower side wall of the tool mounting seat.

[0011] As a preferred solution of the tool fixing structure for a milling machine described in the utility model, each of the spray pipes is configured to be bent, and the positions of the spray pipe and the clamping plate are staggered.

[0012] As a preferred solution of the tool fixing structure for a milling machine described in the utility model, a locking groove is provided on the connecting rod, and the positioning bolt passes through the lifting sleeve and is inserted into the locking groove.

[0013] As a preferred solution of the tool fixing structure for a milling machine described in the utility model, wherein: each inner wall of the clamping plate is fixedly connected with a plurality of evenly distributed positioning protrusions, and the upper end of the milling cutter side wall is provided with a positioning groove matching the positioning protrusion.

[0014] As a preferred solution of the tool fixing structure for a milling machine described in the utility model, wherein: the side wall of the lifting sleeve is fixedly connected with multiple groups of evenly distributed first articulated seats, the top of the second connecting column is fixedly connected with a second articulated seat, and both ends of each of the articulated arms are respectively articulated with the first articulated seat and the second articulated seat.

[0015] The beneficial effects of the utility model are as follows: the milling cutter to be installed is placed between multiple clamping plates, the lifting sleeve is moved upward, and the articulated arm hinged thereto drives the multiple clamping plates to approach each other through the spherical slider and the first connecting column. When the positioning protrusion on the inner wall of the clamping plate is fully inserted into the positioning groove on the milling cutter, the positioning bolt is tightened to achieve quick positioning and installation of the milling cutter. There is no need to use special tools to tighten multiple nuts in sequence. The positioning and installation of the milling cutter is relatively quick, and the parts are connected as a whole, which effectively solves the defect that parts are easily lost. At the same time, milling cutters of different specifications can also be positioned and installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of a tool fixing structure for a milling machine proposed by the utility model;

[0018] Figure 2 This is a schematic structural diagram of a quick positioning unit of a tool fixing structure for a milling machine proposed by the utility model;

[0019] Figure 3 The utility model discloses a schematic diagram of the position structure of a lifting sleeve, a tool mounting seat and a clamping plate of a tool fixing structure for a milling machine.

[0020] Description of the drawings: 100 tool mounting unit, 101 tool mounting seat, 102 connecting rod, 103 milling cutter, 104 clamping plate, 105 positioning protrusion, 200 quick positioning unit, 201 spherical slider, 202 first connecting column, 203 second connecting column, 204 lifting sleeve, 205 positioning bolt, 206 locking groove, 207 articulated arm, 208 first articulated seat, 209 second articulated seat, 300 tool cooling unit, 301 annular liquid storage chamber, 302 spray pipe, 303 spray nozzle, 304 water pump. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Secondly, the utility model is described in detail with reference to the schematic diagram. When describing the embodiments of the utility model, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the utility model. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] Example

[0026] Reference Figure 1-Figure 3 , which is an embodiment of the utility model, provides a tool fixing structure for a milling machine, including: a tool mounting unit 100 and a quick positioning unit 200.

[0027] The tool mounting unit 100 includes a tool mounting seat 101 and a connecting rod 102 fixedly mounted at the center of the upper side wall of the tool mounting seat 101. A plurality of symmetrical clamping plates 104 are arranged on the lower side of the tool mounting seat 101. The plurality of clamping plates 104 clamp a milling cutter 103 together. The inner wall of each clamping plate 104 is fixedly connected with a plurality of evenly distributed positioning protrusions 105. A positioning groove matching the positioning protrusion 105 is provided at the upper end of the side wall of the milling cutter 103. The positioning protrusion and the positioning groove are used in combination to improve the positioning effect of the clamping plate on the milling cutter.

[0028] Secondly, the quick positioning unit 200 includes a plurality of spherical sliding cavities opened in the tool mounting seat 101 and a spherical slider 201 slidably installed in the spherical sliding cavity. The upper and lower side walls of the tool mounting seat 101 are provided with strip openings connected to the corresponding spherical sliding cavities, and the width of the strip opening is smaller than the inner diameter of the spherical sliding cavity. The lower end of the spherical slider 201 is fixedly connected with a first connecting column 202, and the lower end of the first connecting column 202 passes through the strip opening and is fixedly connected to the top of the clamping plate 104. The upper end of the spherical slider 201 is fixedly connected with a second connecting column 203. The vertical sliding sleeve on the connecting rod 102 is provided with a lifting sleeve 204. The top of each second connecting column 203 is connected to the lifting sleeve 204. They are all hinged through an articulated arm 207, and the side wall of the lifting sleeve 204 is fixedly connected with multiple groups of evenly distributed first articulated seats 208, and the top of the second connecting column 203 is fixedly connected with a second articulated seat 209, and the two ends of each articulated arm 207 are respectively hinged with the first articulated seat 208 and the second articulated seat 209, and the side wall of the lifting sleeve 204 is threadedly connected with a positioning bolt 205, and the positioning bolt 205 passes through the lifting sleeve 204 and the connecting rod 102, and a locking groove 206 is provided on the connecting rod 102, and the positioning bolt 205 passes through the lifting sleeve 204 and is inserted into the locking groove 206. Through the setting of the locking groove 206, the positioning effect of the positioning bolt 205 on the lifting sleeve 204 is improved.

[0029] Finally, the tool cooling unit 300 includes an annular liquid storage chamber 301 opened inside the tool mounting seat 101, and a plurality of spray pipes 302 connected to the annular liquid storage chamber 301 are fixedly connected to the lower side wall of the tool mounting seat 101, and a spray nozzle 303 is fixedly installed at the lower end of each spray pipe 302, and a water pump 304 connected to the spray pipe 302 is fixedly installed on the lower side wall of the tool mounting seat 101, and each spray pipe 302 is configured to be bent, and the spray pipe 302 is staggered with the clamping plate 104. Such a configuration enables the spray nozzle 303 to be sprayed directly on the surface of the milling cutter 103, thereby improving the cooling effect of the coolant on the milling cutter 103. When the milling cutter 103 has excessive heat after long-term processing of the workpiece on the CNC milling machine, the water pump 304 is started at this time, and the coolant in the annular liquid storage chamber 301 can be sprayed and cooled directly on the milling cutter 103 through the spray nozzle 303, thereby improving the service life of the milling cutter 103.

[0030] During use, the milling cutter 103 to be installed is placed between multiple clamping plates 104, and the lifting sleeve 204 is moved upward. The hinged arm 207 hinged thereto drives the multiple clamping plates 104 to approach each other through the spherical slider 201 and the first connecting column 202. When the positioning protrusion 105 on the inner wall of the clamping plate 104 is fully inserted into the positioning groove on the milling cutter 103, the positioning bolt 205 is tightened to achieve quick positioning and installation of the milling cutter 103. There is no need to use special tools to tighten multiple nuts in sequence. The positioning and installation of the milling cutter 103 is relatively quick, and the various parts are connected as a whole, which effectively solves the defect that parts are easily lost. At the same time, milling cutters 103 of different specifications can also be positioned and installed.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A tool fixing structure for a milling machine, characterized in that: include: A tool mounting unit (100) comprises a tool mounting seat (101) and a connecting rod (102) fixedly mounted at the center of an upper side wall of the tool mounting seat (101); a plurality of symmetrically positioned clamping plates (104) are arranged on the lower side of the tool mounting seat (101); the plurality of clamping plates (104) clamp a milling cutter (103) together; The quick positioning unit (200) comprises a plurality of spherical sliding cavities provided in a tool mounting seat (101) and a spherical slider (201) slidably installed in the spherical sliding cavity. The upper and lower side walls of the tool mounting seat (101) are provided with strip-shaped openings connected to the corresponding spherical sliding cavities, and the width of the strip-shaped openings is smaller than the inner diameter of the spherical sliding cavities. The lower end of the spherical slider (201) is fixedly connected to a first connecting column (202), and the lower end of the first connecting column (202) passes through the strip-shaped opening and the clamping plate. (104) is fixedly connected to the top, the upper end of the spherical slider (201) is fixedly connected to a second connecting column (203), the vertical sliding sleeve on the connecting rod (102) is provided with a lifting sleeve (204), the top of each second connecting column (203) and the lifting sleeve (204) are hinged through a hinge arm (207), the side wall of the lifting sleeve (204) is threadedly connected with a positioning bolt (205), and the positioning bolt (205) passes through the lifting sleeve (204) and abuts against the connecting rod (102).

2. The tool fixing structure for a milling machine according to claim 1, characterized in that: The tool fixing structure also includes a tool cooling unit (300), which includes an annular liquid storage chamber (301) opened inside the tool mounting seat (101), a plurality of spray pipes (302) in communication with the annular liquid storage chamber (301) are fixedly connected to the lower side wall of the tool mounting seat (101), a spray nozzle (303) is fixedly installed at the lower end of each spray pipe (302), and a water pump (304) in communication with the spray pipe (302) is fixedly installed on the lower side wall of the tool mounting seat (101).

3. A tool fixing structure for a milling machine according to claim 2, characterized in that: Each of the spray pipes (302) is configured to be bent, and the spray pipe (302) and the clamping plate (104) are positioned at an angle.

4. The tool fixing structure for a milling machine according to claim 1, characterized in that: The connecting rod (102) is provided with a locking groove (206), and the positioning bolt (205) penetrates the lifting sleeve (204) and is inserted into the locking groove (206).

5. The tool fixing structure for a milling machine according to claim 1, characterized in that: The inner wall of each clamping plate (104) is fixedly connected with a plurality of evenly distributed positioning protrusions (105), and the upper end of the side wall of the milling cutter (103) is provided with a positioning groove matching the positioning protrusions (105).

6. The tool fixing structure for a milling machine according to claim 1, characterized in that: The side wall of the lifting sleeve (204) is fixedly connected to a plurality of evenly distributed first hinge seats (208); the top of the second connecting column (203) is fixedly connected to a second hinge seat (209); and both ends of each hinge arm (207) are respectively hinged to the first hinge seat (208) and the second hinge seat (209).

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