Milling cutter clamp of movable machine tool

Abstract

The utility model discloses a movable machine tool milling cutter clamp which comprises a base, clamping plates extending along the two sides of the lower end face of the base, positioning plates arranged on the outer sides of the clamping plates, clamping pieces attached to the inner sides of the clamping plates, first through installation holes evenly distributed in the plate faces of the clamping plates on the two sides and the positioning plates, and an embedding hole formed in the middle of the lower end face of the base. The upper end of the transmission shaft is coaxially connected with a motor; a sliding section, a sealing section and a polishing section are sequentially arranged on the outer surface of the cutter body from top to bottom, a shaft sleeve is further arranged on the outer side of the cutter body in a sleeved mode, a groove body and a protruding piece which correspond to the sliding section and the sealing section respectively are arranged in a cavity of the shaft sleeve, a plurality of balls are arranged between the groove body in the shaft sleeve and the groove body of the sliding section, and the protruding piece protrudes out of the groove body of the sealing section. A mounting block is arranged at the upper end of the shaft sleeve, sliding grooves corresponding to the clamping pieces are formed in the two sides of the mounting block, and second mounting holes corresponding to the first mounting holes are formed in the two sides of the sliding grooves in the two sides, so that the sealing performance is better, replacement and mounting are more convenient, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool milling cutter equipment, in particular to a movable machine tool milling cutter fixture. Background Art

[0002] In the field of modern mechanical processing, milling is a widely used cutting method. In the actual production process, the installation accuracy, stability and working efficiency of the milling cutter directly affect the quality and production cost of the final product. Traditional machine tool milling cutter fixtures have some shortcomings in design and function. For example, the installation and fixation of the milling cutter is not firm enough, which easily leads to shaking or offset during high-speed operation, affecting the processing accuracy; in addition, the transmission structure is complex or the transmission efficiency is not high, which will increase energy loss and shorten the service life of the milling cutter; furthermore, the sealing performance of some fixtures is poor, which is easy to cause cutting fluid or dust to pollute the transmission system, increase maintenance frequency and cost; at the same time, some existing milling cutter fixtures are cumbersome to replace and adjust the milling cutter, which is not conducive to improving production efficiency. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a movable machine tool milling cutter fixture which has better sealing performance, is more convenient to replace and install, and has a longer service life.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a movable machine tool milling cutter fixture, including a base, clamping plates extending along both sides of the lower end surface of the base, positioning plates are arranged on the outer sides of the clamping plates, and clamps are attached to the inner sides of the clamping plates. First mounting holes that are arranged through are arranged on the surfaces of the clamping plates and the positioning plates on both sides, an embedded hole is opened in the middle of the lower end surface of the base, a transmission shaft protrudes from the middle of the embedded hole, and a motor is coaxially connected to the upper end of the transmission shaft; it also includes a cutter body, and the outer surface of the cutter body is arranged from top to bottom in sequence as a sliding section, a sealing section and a grinding section, and the sliding section and the sealing section are arranged in sequence as follows. The sealing sections are all groove structures with an inwardly concave arrangement. The upper end of the knife body also protrudes with a plug-in for being embedded in the embedding hole, and the middle part of the plug-in is provided with a socket corresponding to the transmission shaft structure; the outer side of the knife body is also sleeved with a shaft sleeve, and the shaft sleeve cavity is provided with a groove body and a convex part corresponding to the sliding section and the sealing section respectively, and a plurality of ball bearings are provided between the groove body in the shaft sleeve and the groove body of the sliding section, and the convex part protrudes from the groove body of the sealing section, and the upper end of the shaft sleeve is provided with a mounting block, and sliding grooves corresponding to the clamping parts are provided on both sides of the mounting block, and second mounting holes corresponding to the first mounting holes are provided on both sides of the sliding grooves on both sides.

[0005] Preferably, the base is a rectangular cavity structure which is hollow inside and open at the lower end, and the embedding hole is a columnar structure cavity which is hollow inside and open at the lower end, and the embedding hole is arranged in the middle of the base cavity.

[0006] Preferably, the transmission shaft is a rectangular column structure, and the upper end of the transmission shaft is coaxially connected to a motor arranged at the upper end of the base.

[0007] Preferably, the socket structure is a rectangular cylindrical hole corresponding to the transmission shaft structure, and the socket of the rectangular structure is arranged corresponding to the transmission shaft, thereby increasing the transmission force during the transmission process.

[0008] Preferably, the sliding section groove body and the groove body in the sleeve cavity are both arranged as an inwardly concave arc structure, and a circular groove body is formed between the two oppositely arranged groove bodies. A plurality of balls for reducing friction are embedded between the groove body outside the knife body sliding section and the sleeve groove body.

[0009] Preferably, the sealing section is a groove structure with an inwardly concave arrangement, and the inner convex part of the shaft sleeve protrudes inside the groove of the sealing section. During installation, the convex part and the groove of the sealing section are arranged to fit each other.

[0010] Preferably, the first mounting hole and the second mounting hole are arranged correspondingly, and a bolt is installed between the first mounting hole and the second mounting hole.

[0011] The beneficial effects of the utility model are:

[0012] 1. The clamping plates and positioning plates on both sides of the lower end surface of the base are designed to achieve multi-point positioning and firm clamping of the milling cutter, enhance the stability of the milling cutter during high-speed rotation, and reduce vibration and offset.

[0013] 2. The base adopts a rectangular cavity structure with a hollow interior and an open lower end. An embedded hole is provided in the middle to accommodate the drive shaft. This structure saves materials and is easy to assemble and maintain. At the same time, the position of the drive shaft is centered, which is conducive to the balanced transmission of torque. The drive shaft adopts a rectangular column structure and is coaxially connected to the motor, which helps to increase the contact area and transmission reliability. The rectangular jack design further enhances the connection stiffness and transmission efficiency between the drive shaft and the cutter body, avoiding slipping under high load conditions. The sliding section and sealing section of the cutter body adopt an inner groove structure, and balls are arranged between the sliding section and the sleeve. Rolling friction is used instead of sliding friction, which greatly reduces the friction loss of the milling cutter during high-speed rotation and improves mechanical efficiency and service life.

[0014] 3. The corresponding arrangement of the first mounting hole and the second mounting hole, combined with the bolt fixing method, realizes the fast and stable connection and installation between the various components of the fixture, which not only simplifies the assembly steps, but also ensures the structural strength and integrity of the entire milling cutter fixture during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the base structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the knife body installation structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the knife body of the utility model;

[0019] Figure 5 A new type of sleeve cross-sectional view is used for this purpose.

[0020] Notes in the figure

[0021] 1. Base; 101. Clamp; 102. First mounting hole; 103. Clamp; 2. Embedded hole; 201. Transmission shaft; 202. Motor; 3. Ball; 4. Cutter body; 401. Sliding section; 402. Sealing section; 403. Grinding section; 404. Plug-in; 405. Socket; 6. Bushing; 601. Mounting block; 602. Second mounting hole; 603. Slide groove; 604. Protrusion. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in 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.

[0023] Combination Figure 1-5The utility model provides a movable machine tool milling cutter fixture, including a base 1, a clamping plate 101 is extended along both sides of the lower end surface of the base 1, a positioning plate is arranged on the outer side of the clamping plate 101, a clamping piece 103 is attached to the inner side of the clamping plate 101, and first mounting holes 102 are evenly distributed on the surfaces of the clamping plates 101 and the positioning plates on both sides, an embedding hole 2 is opened in the middle of the lower end surface of the base 1, a transmission shaft 201 protrudes from the middle of the embedding hole 2, and a motor 202 is coaxially connected to the upper end of the transmission shaft 201; it also includes a cutter body 4, the outer surface of the cutter body 4 is sequentially arranged from top to bottom as a sliding section 401, a sealing section 402 and a grinding section 403, and the sliding section 401 and the sealing section 402 are both concavely arranged The groove structure, the upper end of the knife body 4 also protrudes with a plug-in 404 for being embedded in the embedding hole 2, and the middle part of the plug-in 404 is provided with a socket 405 corresponding to the transmission shaft 201 structure; the outer side of the knife body 4 is also sleeved with a sleeve 6, and the cavity of the sleeve 6 is provided with a groove body and a protrusion 604 corresponding to the sliding section 401 and the sealing section 402 respectively, and a plurality of balls 3 are arranged between the groove body in the sleeve 6 and the groove body of the sliding section 401, and the protrusion 604 protrudes from the groove body of the sealing section 402, and the upper end of the sleeve 6 is provided with a mounting block 601, and both sides of the mounting block 601 are provided with sliding grooves 603 corresponding to the clamping member 103, and both sides of the sliding grooves 603 are provided with second mounting holes 602 corresponding to the first mounting holes 102.

[0024] Furthermore, the base 1 is a rectangular cavity structure which is hollow inside and open at the lower end, and the embedding hole 2 is a columnar structure cavity which is hollow inside and open at the lower end, and the embedding hole 2 is arranged in the middle of the cavity of the base 1.

[0025] Furthermore, the transmission shaft 201 is a rectangular column structure, and the upper end of the transmission shaft 201 is coaxially connected to the motor 202 arranged at the upper end of the base 1.

[0026] Furthermore, the socket 405 structure is a rectangular cylindrical hole corresponding to the structure of the transmission shaft 201. The socket 405 with a rectangular structure is arranged corresponding to the transmission shaft 201, thereby increasing the transmission force during the transmission process.

[0027] Furthermore, the groove body of the sliding section 401 and the groove body in the cavity of the sleeve 6 are both arranged as an inwardly concave arc structure, and a circular groove body is formed between the two oppositely arranged groove bodies. A plurality of balls 3 for reducing friction are embedded between the outer groove body of the sliding section 401 of the knife body 4 and the groove body of the sleeve 6 through a circumferential arrangement.

[0028] Furthermore, the sealing section 402 is a groove structure with an inwardly concave arrangement, and the inner convex part 604 of the shaft sleeve 6 protrudes inside the groove of the sealing section 402. During installation, the convex part 604 and the groove of the sealing section 402 are arranged to fit each other.

[0029] Furthermore, the first mounting hole 102 and the second mounting hole 602 are arranged correspondingly, and a bolt is installed between the first mounting hole 102 and the second mounting hole 602 .

[0030] The movable machine tool milling cutter fixture can realize multi-point positioning and firm clamping of the milling cutter through the clamping plates 101 and positioning plates on both sides of the lower end surface of the base 1, enhance the stability of the milling cutter during high-speed rotation, and reduce vibration and offset. The base 1 adopts a rectangular cavity structure with a hollow interior and an open lower end. An embedded hole 2 is provided in the middle to accommodate the transmission shaft 201. This structure saves materials and is convenient for assembly and maintenance. At the same time, the position of the transmission shaft 201 is centered, which is conducive to the balanced transmission of torque. The transmission shaft 201 adopts a rectangular column structure and is coaxially connected to the motor 202, which helps to increase the contact area and transmission reliability. The rectangular socket 405 design further enhances the connection stiffness and transmission efficiency between the transmission shaft 201 and the cutter body 4, avoiding slippage under high load conditions. The sliding section 401 and the sealing section 402 of the cutter body 4 adopt an inner groove body structure, and the sliding section 401 and the sleeve are connected. 6, a ball 3 is arranged between them, and rolling friction is used instead of sliding friction, which greatly reduces the friction loss of the milling cutter when it rotates at high speed, improves the mechanical efficiency and service life, and the sealing section 402 fits with the inner protrusion 604 of the sleeve 6 to form a good sealing effect, which can effectively prevent cutting fluid, debris or other pollutants from entering the transmission part, reduce the equipment failure rate, and extend the service life of parts. The corresponding setting of the first mounting hole 102 and the second mounting hole 602, combined with the bolt fixing method, realizes the fast and stable connection and installation between the various components of the fixture, which not only simplifies the assembly steps, but also ensures the structural strength and integrity of the entire milling cutter fixture during use.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A movable machine tool milling cutter fixture, characterized in that: The invention comprises a base (1), a clamping plate (101) extending along both sides of the lower end surface of the base (1), a positioning plate being arranged on the outer side of the clamping plate (101), a clamping piece (103) being attached to the inner side of the clamping plate (101), first mounting holes (102) being arranged through-through on the surfaces of the clamping plates (101) and the positioning plates on both sides, an embedding hole (2) being arranged in the middle of the lower end surface of the base (1), a transmission shaft (201) protruding from the middle of the embedding hole (2), and a motor (202) being coaxially connected to the upper end of the transmission shaft (201); and a knife body (4), the outer surface of the knife body (4) being arranged in sequence from top to bottom as a sliding section (401), a sealing section (402) and a grinding section (403), the sliding section (401) and the sealing section (402) both being groove structures arranged inwardly, and the upper end of the knife body (4) A plug-in unit (404) is also provided for embedding in the embedding hole (2), and a plug-in unit (404) is provided in the middle of the plug-in unit (404) with a plug hole (405) corresponding to the transmission shaft (201) structure; a sleeve (6) is also provided on the outside of the blade body (4), and a groove body and a protrusion (604) corresponding to the sliding section (401) and the sealing section (402) are provided in the cavity of the sleeve (6), and a plurality of balls (3) are provided between the groove body in the sleeve (6) and the groove body of the sliding section (401), and the protrusion (604) protrudes from the groove body of the sealing section (402); a mounting block (601) is provided at the upper end of the sleeve (6), and sliding grooves (603) corresponding to the clamping member (103) are provided on both sides of the mounting block (601), and second mounting holes (602) corresponding to the first mounting hole (102) are provided on both sides of the sliding grooves (603).

2. The movable machine tool milling cutter fixture according to claim 1, characterized in that: The base (1) is a rectangular cavity structure which is hollow inside and open at the bottom, and the embedding hole (2) is a columnar cavity structure which is hollow inside and open at the bottom. The embedding hole (2) is arranged in the middle of the cavity of the base (1).

3. The movable machine tool milling cutter fixture according to claim 1, characterized in that: The transmission shaft (201) is a rectangular column structure, and the upper end of the transmission shaft (201) is coaxially connected to a motor (202) arranged at the upper end of the base (1).

4. The movable machine tool milling cutter fixture according to claim 1, characterized in that: The socket (405) structure is a rectangular cylindrical hole corresponding to the transmission shaft (201) structure, and the socket (405) of the rectangular structure is arranged corresponding to the transmission shaft (201), thereby increasing the transmission force during the transmission process.

5. The movable machine tool milling cutter fixture according to claim 1, characterized in that: The groove body of the sliding section (401) and the groove body in the shaft sleeve (6) cavity are both arranged as an inwardly concave arc structure, and a circular groove body is formed between the two oppositely arranged groove bodies. A plurality of balls (3) for reducing friction are embedded between the groove body of the outer side of the sliding section (401) of the cutter body (4) and the groove body of the shaft sleeve (6) through a circumferential arrangement.

6. The movable machine tool milling cutter fixture according to claim 1, characterized in that: The sealing section (402) is a groove structure with an inwardly concave arrangement, and the inner convex part (604) of the shaft sleeve (6) protrudes inside the groove of the sealing section (402). During installation, the convex part (604) and the groove of the sealing section (402) are arranged to fit each other.

7. The movable machine tool milling cutter fixture according to claim 1, characterized in that: The first mounting hole (102) and the second mounting hole (602) are arranged correspondingly, and a bolt is installed between the first mounting hole (102) and the second mounting hole (602).

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