Positioning structure of cutting machine

Abstract

The utility model discloses a positioning structure of a cutting machine, which belongs to the technical field of cutting machines and comprises two fixing seats arranged on a cutting platform and provided with through holes; the two graphite copper sleeves are respectively arranged in the two through holes; the rotating shaft penetrates through the two graphite copper sleeves; the motor mounting seat is sleeved on the rotating shaft between the two fixed seats; and an open slot communicated with the through hole is formed in the fixed seat. The graphite copper sleeve is used as a support for rotation of the rotating shaft in the fixed seat, and the graphite copper sleeve is lubricated by graphite and is in sliding friction, so that the situation that a traditional ball bearing is rusted and stuck in an environment where water easily enters can be avoided; and the open slot designed on one side of the fixed seat is communicated with the through hole, so that the graphite copper sleeve can be stabilized by locking the open slot through a fastening bolt, the graphite copper sleeve is easy to adjust and stabilize again when being worn, and the cutting precision is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting machine technical field, concretely relates to a cutting machine positioning structure. BACKGROUND

[0002] Cutting machine as an important processing equipment, is widely used in cutting processing of metal, nonmetal and other materials. Cutting machine is generally arranged on the rotating shaft, and the rotating shaft is rotated to make the cutting machine cut the workpiece. The rotating shaft of the existing cutting machine is installed on the cutting platform through the ball bearing. Because liquid solution such as cutting fluid is used in the cutting process, the ball bearing is prone to rust and jam in the humid environment, so that the cutting machine cannot be used. The conventional bearing is directly inserted in the mounting hole, and because the hole diameter of the mounting hole is fixed, when the bearing is worn and a large gap appears with the mounting hole, it is difficult to keep the rotating shaft stable, and the machining precision is affected. SUMMARY

[0003] In view of the above technical deficiencies, the utility model aims at providing a cutting machine positioning structure, which is more suitable for stable use in a humid processing environment, easy to keep the rotating shaft stable, and at least solves part of the problems in the prior art.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a cutting machine positioning structure, which comprises:

[0005] Two fixed seats are arranged on the cutting platform, and the fixed seat is provided with a through hole;

[0006] Two graphite copper sleeves are arranged in the two through holes respectively;

[0007] A rotating shaft passes through the two graphite copper sleeves;

[0008] A motor mounting seat is arranged on the rotating shaft between the two fixed seats;

[0009] Among them, the fixed seat is provided with an opening slot communicated with the through hole, and the fixed seat is provided with a fastening bolt passing through the opening slot; when the fastening bolt is tightened, the fixed seat produces plastic deformation, the width of the opening slot is reduced, and the through hole is reduced and clamps the graphite copper sleeve.

[0010] Preferably, the motor mounting seat comprises a connecting part and two supporting parts, the connecting part is connected with the motor bolt, the two supporting parts are fixed at the bottom of the connecting part and are sleeved on the rotating shaft, a torsional spring is sleeved on the rotating shaft between the two supporting parts, one end of the torsional spring abuts against the cutting platform, and the other end abuts against the connecting part.

[0011] Preferably, two positioning blind holes are arranged on the part between the two fixing bases, and two positioning bolts are threadedly installed on the connecting part and matched with the two positioning blind holes respectively, and the end of the positioning bolt is inserted into the positioning blind hole.

[0012] Preferably, the rotating shaft is a stepped shaft, and is sequentially divided into a first section, a second section and a third section, the diameter of the second section is greater than that of the first section and the third section, one end of the graphite copper sleeve is fixed with a flange with a diameter greater than that of the through hole, the flanges of the two graphite copper sleeves are located between the two fixing bases, and the two ends of the second section abut against the two flanges.

[0013] Preferably, two fixing blocks are fixed on the cutting platform, and the two fixing bases are fixed on the two fixing blocks through bolts respectively.

[0014] Preferably, the two fixing blocks are welded on the cutting platform.

[0015] Preferably, one end of the rotating shaft is provided with a pressing rod, and the pressing rod is used for rotating the rotating shaft.

[0016] The beneficial effects of the utility model lie in:

[0017] The graphite copper sleeve is used as the support for the rotating shaft in the fixing base, the graphite copper sleeve is lubricated by graphite and is in sliding friction, so that the rusting and jamming of the traditional ball bearing in the environment prone to water can be avoided, the opening groove on one side of the fixing base is in communication with the through hole, so that the graphite copper sleeve can be locked and stabilized by using the fastening bolt, and the cutting precision can be maintained by easily adjusting and stabilizing the graphite copper sleeve when the graphite copper sleeve is worn. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 A cutting machine positioning structure practical application schematic view provided by the utility model embodiment.

[0020] Figure 2 A front view of the utility model.

[0021] Figure 3 A top view of the utility model.

[0022] Figure 4 A Figure 3 A sectional view at A-A.

[0023] Figure 5 It is the structure schematic view of the utility model fixed seat.

[0024] Mark explanation:

[0025] 1, fixed seat, 2, cutting platform, 3, through hole, 4, graphite copper sleeve, 41, baffle, 5, rotating shaft, 501, first section, 502, second section, 503, third section, 6, motor mounting seat, 7, open slot, 8, fastening bolt, 9, connecting part, 10, support part, 11, torsion spring, 12, positioning blind hole, 13, positioning bolt, 14, fixed block, 15, pressing rod. Specific embodiments

[0026] The technical solutions in the embodiments of the utility model will be clearly 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Embodiment one:

[0028] As Figures 1 to 5 shown, the utility model embodiment one provides a cutting machine positioning structure for cutting machine body is installed on cutting platform 2, cutting machine body refers to motor and saw blade fixed on motor output shaft. The cutting machine positioning structure designed by the utility model mainly contains following components: two fixed seats 1, two graphite copper sleeves 4, a rotating shaft 5 and a motor mounting seat 6. First, two fixed blocks 14 are welded on cutting platform 2, threaded holes are formed on fixed block 14, and each fixed block 14 is fixed with fixed seat 1 by bolt. As Figure 5 shown, through hole 3 is formed on fixed seat 1, and through hole 3 is used to install graphite shaft sleeve. Open slot 7 is formed on one side of fixed seat 1, open slot 7 is communicated with through hole 3, the part of fixed seat 1 is disconnected, and the structure of fixed seat 1 is approximately C type. As Figure 3 and Figure 5 shown, it can be known that fastening bolt 8 is arranged through open slot 7 on fixed seat 1, when fastening bolt 8 is tightened, the interval between the two slot walls of open slot 7 is reduced due to plastic deformation of fixed seat 1, so that through hole 3 is reduced and graphite copper sleeve 4 is tightly clamped, and the stability and accuracy of the structure are ensured.

[0029] The rotating shaft 5 passes through two graphite copper sleeves 4. The graphite copper sleeves 4 reduce friction during rotation of the shaft 5 and are more stable than ball bearings. A motor mounting base 6 is fitted onto the rotating shaft 5 between two fixed bases 1. The motor mounting base 6 consists of a connecting part 9 and two supporting parts 10. (The text then repeats itself, so the translation will only include the first instance.) Figure 1 As shown, the connecting part 9 is securely connected to the motor via bolts, while the two support parts 10 are fixed to the bottom of the connecting part 9 and sleeved on the rotating shaft 5. To further improve positioning accuracy, two positioning blind holes 12 are formed in the part of the rotating shaft 5 located between the two fixed seats 1. Correspondingly, two positioning bolts 13 are threaded onto the connecting part 9. The ends of these two positioning bolts 13 can be precisely inserted into the positioning blind holes 12, thereby achieving precise positioning between the motor mounting seat 6 and the rotating shaft 5. This avoids the motor mounting seat 6 shifting on the rotating shaft 5, which would lead to a decrease in cutting accuracy.

[0030] With the above settings, the cutting motor is rotatably mounted on the cutting platform 2. The self-lubricating and stable properties of the graphite copper sleeve 4 ensure that the rotating shaft 5 has good rotational stability. When the graphite copper sleeve 4 shakes due to wear, the designed opening slot 7 can reduce the size of the through hole 3 by tightening the fastening bolt 8, thereby re-clamping the graphite copper sleeve 4, solving the shaking problem and improving the cutting accuracy.

[0031] Example 2:

[0032] Based on Embodiment 1, in order to limit the axial movement of the rotating shaft 5 on the graphite copper sleeve 4, this utility model designs the rotating shaft 5 as a stepped shaft, such as... Figure 4 As shown, the rotating shaft 5 is divided into three sections from left to right: a first section 501, a second section 502, and a third section 503. The diameter of the second section 502 is larger than that of the first and third sections 501, while the diameters of the first and third sections 503 are the same. Simultaneously, one end of the graphite copper sleeve 4 is fixed with a flange 41 whose diameter is larger than that of the through hole 3. These flanges 41 of the two graphite copper sleeves 4 are located between the two fixed seats 1, and the second section 502 of the rotating shaft 5 rests precisely against the two flanges 41. This design not only enhances the stability of the structure but also restricts the axial movement of the graphite copper sleeve 4 and the rotating shaft 5, maintaining the stability of the cutting motor position.

[0033] Example 3:

[0034] On the basis of embodiment one and embodiment two, in order to facilitate the rotation of the rotating shaft 5, the cutting motor is rotated with the rotating shaft 5 as the center, so that the saw disc cuts the workpiece, and a mounting hole is further formed at the end of the third section 503 of the rotating shaft 5, a pressing rod 15 is inserted on the mounting hole, and the operator can easily drive the rotation of the rotating shaft 5 by rotating the pressing rod 15. In order to further increase the stability of the structure, the rotating shaft 5 can be automatically reversed and reset without rotating the pressing rod 15, and the utility model sets a torsional spring 11 on the rotating shaft 5 between the two supporting parts 10. One end of the torsional spring 11 abuts against the cutting platform 2, and the other end abuts against the connecting part 9. Such a design not only enhances the stability of the motor mounting seat 6, but also helps to provide appropriate buffering and resetting functions during rotation.

[0035] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the utility model claims and their equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A cutting machine positioning structure, characterized by, The utility model relates to a cutting platform, including: Two fixed seats (1) are arranged on the cutting platform (2), and the fixed seat (1) is provided with a through hole (3); Two graphite copper sleeves (4) are arranged in the two through holes (3) respectively; A rotating shaft (5) penetrates the two graphite copper sleeves (4); A motor mounting seat (6) is sleeved on the rotating shaft (5) between the two fixed seats (1); Wherein, the fixed seat (1) is provided with an opening slot (7) communicated with the through hole (3), and the fixed seat (1) is provided with a fastening bolt (8) penetrating the opening slot (7); when the fastening bolt (8) is tightened, the fixed seat (1) is plastically deformed, the width of the opening slot (7) is reduced, and the through hole (3) is reduced and clamps the graphite copper sleeve (4).

2. A cutting machine positioning structure as claimed in claim 1, wherein The motor mounting seat (6) includes a connecting part (9) and two supporting parts (10), the connecting part (9) is connected with the motor bolt, the two supporting parts (10) are fixed at the bottom of the connecting part (9) and are sleeved on the rotating shaft (5), and the torsional spring (11) is sleeved on the rotating shaft (5) between the two supporting parts (10), one end of the torsional spring (11) abuts against the cutting platform (2), and the other end abuts against the connecting part (9).

3. A cutting machine positioning structure as claimed in claim 2, wherein The part of the rotating shaft (5) between the two fixed seats (1) is provided with two positioning blind holes (12), the connecting part (9) is provided with two positioning bolts (13) screwed and matched with the two positioning blind holes (12) respectively, and the positioning bolt (13) is inserted into the positioning blind hole (12).

4. A cutting machine positioning structure as claimed in claim 1, wherein The rotating shaft (5) is a stepped shaft, which is sequentially divided into a first section (501), a second section (502) and a third section (503), the diameter of the second section (502) is greater than that of the first section (501) and the third section (503); one end of the graphite copper sleeve (4) is fixed with a flange (41) with a diameter greater than that of the through hole (3), the flanges (41) of the two graphite copper sleeves (4) are located between the two fixed seats (1), and the two ends of the second section (502) abut against the two flanges (41).

5. A cutting machine positioning structure as claimed in claim 1, wherein The cutting platform (2) is fixed with two fixed blocks (14), and the two fixed seats (1) are fixed on the two fixed blocks (14) by bolts respectively.

6. A cutting machine positioning structure as claimed in claim 5, wherein The two fixed blocks (14) are welded on the cutting platform (2).

7. A cutting machine positioning structure as claimed in claim 1, wherein One end of the rotating shaft (5) is provided with a pressing rod (15), and the pressing rod (15) is used for rotating the rotating shaft (5).

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