A new type of saw blade locking device

Abstract

The invention provides a novel saw blade locking device, including an inner chuck, a clamping assembly, and a locking cylinder. A clamping plate is fixedly provided at one end of the cylinder body adjacent to the piston rod, and the clamping plate is used to clamp the clamping assembly; a locking rod is provided at one end of the piston rod away from the output shaft, and a through hole corresponding to the locking rod is provided at one end of the cylinder body away from the clamping plate, and a locking nut is correspondingly provided to the locking rod, and the locking nut is arranged on the outside of the cylinder body. The novel saw blade locking device created by the invention utilizes the locking force provided by the locking cylinder, which is stable and controllable, has a reliable locking effect, and the saw blade works stably with a low accident rate. At the same time, the operation time of changing saw blades is reduced, the production efficiency and benefits are improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting equipment, and in particular relates to a novel saw blade locking device. Background Art

[0002] Sliding seat cold saws are widely used in existing steel production lines. The working process is that a rotating saw blade is connected to a movable frame through a clamping device, and the steel is cut by moving the frame.

[0003] 1. Since the saw blade is a cutting tool, it needs to be firmly fixed on the reducer shaft to work properly, so the reliable fixation of the saw blade is a basic requirement that must be guaranteed. In the past, the saw blade was fixed by manually tightening the mechanical bolts and nuts, which was greatly affected by the operator's operating factors. This method has unstable locking force and reliability is not easy to guarantee.

[0004] 2. At the same time, saw blades are also consumable parts. Cutting metal during work will cause the saw teeth to wear quickly, so the saw blades need to be replaced in time. However, replacing the saw blades requires stopping production, which will generate production auxiliary time, reduce production efficiency, and reduce output. Therefore, in order to improve production efficiency, increase output, enhance market competitiveness, and increase corporate benefits, fast and convenient replacement of saw blades has also become a basic requirement for modern metal sawing machines. In the past, saw blades were fixed by manually tightening mechanical bolts and nuts. Replacing saw blades requires tightening or loosening several bolts in sequence, which takes a long time and is inefficient.

[0005] 3. In the past, the method of fixing by manually tightening mechanical bolts and nuts was labor-intensive for workers. Invention content

[0006] In view of this, in order to overcome the above-mentioned defects, the present invention aims to provide a novel saw blade locking device.

[0007] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0008] A novel saw blade locking device comprises an inner chuck, a clamping assembly and a locking cylinder. The inner chuck is sleeved on the outer side of the output shaft of the reducer and is arranged in close contact with the shoulder of the output shaft of the reducer. The inner chuck is provided with a mounting position for mounting the saw blade. The clamping assembly is arranged on the side of the saw blade away from the inner chuck.

[0009] The locking cylinder includes a cylinder body and a piston rod, and the end of the reducer output shaft is provided with a mounting position corresponding to the piston rod, which is used to match and fix the piston rod therewith;

[0010] A clamping plate is fixedly provided at one end of the cylinder body adjacent to the piston rod, and the clamping plate is used to clamp the clamping assembly;

[0011] A locking rod is provided at one end of the piston rod away from the output shaft, a through hole corresponding to the locking rod is opened at one end of the cylinder body away from the clamping plate, and a locking nut is correspondingly provided to the locking rod, and the locking nut is arranged on the outside of the cylinder body.

[0012] Furthermore, the outer side surface of the inner chuck is provided with three bosses with gradually decreasing diameters, namely boss one, boss two, and boss three. The clamping assembly includes an outer chuck and a pressure plate. The saw blade is sleeved on the outer side of boss one, the outer chuck is sleeved on the outer side of boss two, and the pressure plate is sleeved on the outer side of boss three. The clamping plate is used to clamp the pressure plate.

[0013] Furthermore, the inner chuck is provided with a positioning pin, and the saw blade and the outer chuck are provided with positioning holes corresponding to the positioning pin.

[0014] Furthermore, the pressure plate and the outer clamping plate are rotatably connected through grooves and protrusions.

[0015] Furthermore, the thickness of the saw blade is greater than the width of boss one, the outer chuck fits the outer side surface of the saw blade, the outer chuck extends toward boss one to form a boss, the boss fits the inner hole of the saw blade, and a gap is reserved between the boss and boss one.

[0016] Furthermore, the clamping plate is a disc, the outer edge of the disc extends toward the pressure plate to form a pressure ring, the inner hole of the disc extends toward the inner side of the cylinder body to form a connecting ring, the cylinder body is a round tube, the outer side surface of the connecting ring fits with the inner side surface of the cylinder body, the inner side surface of the connecting ring fits with the outer wall of the piston rod, and the disc is fixed to the cylinder body by bolts; the inner and outer walls of the connecting ring are both provided with sealing members, a hydraulic cavity is formed between the piston part of the piston rod and the connecting ring, and a hydraulic pipeline connected to the hydraulic cavity is provided on the cylinder body.

[0017] Furthermore, the piston rod is also provided with a corresponding positioning block, the end surface of the reducer output shaft is provided with a groove corresponding to the positioning block, and the piston rod is provided with a shaft shoulder corresponding to the positioning block;

[0018] The piston rod is connected to the output shaft of the reducer through threads, an internal thread hole is opened on the end face of the reducer, and an external thread is arranged on the end of the piston rod.

[0019] Furthermore, a guide pin is installed on the cylinder body, and the guide pin passes through the cylinder body and extends into the interior. A strip hole corresponding to the guide pin is provided on the piston rod, and the guide pin is used to prevent the piston rod from rotating radially.

[0020] Compared with the prior art, the novel saw blade locking device created by the present invention has the following beneficial effects:

[0021] The novel saw blade locking device created by the present invention utilizes the locking force provided by the locking cylinder, which is stable and controllable, has a reliable locking effect, and the saw blade works stably with a low accident rate. At the same time, it reduces the operation time of changing saw blades, improves production efficiency and benefits, and reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 An overall cross-sectional view of the novel saw blade locking device described in the present invention;

[0024] Figure 2 The invention creates a novel saw blade locking device for installing Figure 1 ;

[0025] Figure 3 The invention creates a novel saw blade locking device for installing Figure 2 ;

[0026] Figure 4 The invention creates a novel saw blade locking device for installing Figure 3 ;

[0027] Figure 5 The invention creates a novel saw blade locking device for installing Figure 4 ;

[0028] Figure 6 This is a structural diagram of the connection between the outer chuck and the inner chuck described in the present invention. Description of the drawings:

[0030] 1. Reducer output shaft; 2. Inner chuck; 21. Locating pin; 22. Boss 1; 23. Boss 2; 24. Boss 3; 3. Saw blade; 4. Outer chuck; 5. Pressure plate; 6. Pressure plate; 61. Pressure ring; 62. Connecting ring; 7. Guide pin; 8. Locking nut; 9. Piston rod; 10. Locating block. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0032] In the description of the invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0035] like Figure 1 As shown, a novel locking device for a saw blade 3 includes an inner chuck 2, a clamping assembly, and a locking cylinder. The inner chuck 2 is sleeved on the outer side of the reducer output shaft 1 and is arranged in close contact with the shoulder of the reducer output shaft 1. The inner chuck 2 is provided with a mounting position for mounting the saw blade 3. The clamping assembly is arranged on the side of the saw blade 3 away from the inner chuck 2.

[0036] The locking cylinder includes a cylinder body and a piston rod 9. The end of the reducer output shaft 1 is provided with a mounting position corresponding to the piston rod 9, which is used to match and fix the piston rod 9 therewith;

[0037] A clamping plate 6 is fixedly disposed at one end of the cylinder body adjacent to the piston rod 9, and the clamping plate 6 is used to clamp the clamping assembly;

[0038] The piston rod 9 has a locking rod at one end away from the output shaft, and the cylinder body has a through hole corresponding to the locking rod at one end away from the clamping plate 6. The locking rod has a locking nut 8 corresponding to the locking nut 8, which is arranged on the outside of the cylinder body.

[0039] The outer side surface of the inner chuck 2 is provided with three bosses with gradually decreasing diameters, namely boss one 22, boss two 23, and boss three 24. The clamping assembly includes an outer chuck 4 and a pressure plate 5. The saw blade 3 is sleeved on the outer side of the boss one 22, the outer chuck 4 is sleeved on the outer side of the boss two 23, the pressure plate 5 is sleeved on the outer side of the boss three 24, and the clamping plate 6 is used to clamp the pressure plate 5.

[0040] The inner chuck 2 is provided with a positioning pin 21 , and the saw blade 3 and the outer chuck 4 are provided with positioning holes corresponding to the positioning pin 21 , and the positioning holes are for preventing the saw blade 3 from slipping during use.

[0041] The pressure plate 5 and the outer clamping plate 4 are rotatably connected by means of grooves and protrusions.

[0042] like Figure 1 , Figure 6 As shown, the thickness of the saw blade 3 is greater than the width of the boss 22, the outer chuck 4 is fitted with the outer side surface of the saw blade 3, the outer chuck 4 extends in the direction of the bulge to form a bulge, the bulge is fitted with the inner hole of the saw blade 3, and a gap is reserved between the bulge and the boss 22, and the gap is a movable gap. If the gap is too large, the pressure plate 5 will apply a greater force to the inner outer chuck 4 when tightening, causing the outer chuck 4 at this position to move a greater distance toward the inner chuck 2, and the outer edge of the outer chuck 4 will appear "open", affecting subsequent use. Therefore, a bulge is set at this position, so that when tightened, the amount of the outer chuck 4 toward the inner side is much smaller, and the outer edge deformation will not be large.

[0043] The clamping plate 6 is a disc, and the outer edge of the disc extends toward the pressure plate 5 to form a pressure ring 61. The inner hole of the disc extends toward the inner side of the cylinder body to form a connecting ring 62. The cylinder body is a round tube. The outer side surface of the connecting ring 62 fits with the inner side surface of the cylinder body, and the inner side surface of the connecting ring 62 fits with the outer wall of the piston rod 9. The disc and the cylinder body are fixed by bolts; the inner and outer walls of the connecting ring 62 are both provided with sealing members, a hydraulic cavity is formed between the piston part of the piston rod 9 and the connecting ring 62, and a hydraulic pipeline connected to the hydraulic cavity is provided on the cylinder body.

[0044] The piston rod 9 is also provided with a positioning block 10, and the end surface of the reducer output shaft 1 is provided with a groove corresponding to the positioning block 10. The piston rod 9 is provided with a shoulder corresponding to the positioning block 10. The left and right end surfaces of the positioning block 10 are respectively fitted with the shoulder of the piston rod 9 and the positioning surface of the inner chuck 2, so that after the piston rod 9 is tightened into place, the piston part and the cylinder body maintain an appropriate gap, and hydraulic oil can be delivered to the hydraulic cavity;

[0045] The piston rod 9 is connected to the reducer output shaft 1 through threads, an internal thread hole is opened on the end face of the reducer, and an external thread is provided on the end of the piston rod 9.

[0046] A guide pin 7 is also installed on the cylinder body. The guide pin 7 penetrates the cylinder body and extends into the interior. A strip hole corresponding to the guide pin 7 is provided on the piston rod 9. The guide pin 7 is used to prevent the piston rod 9 from rotating radially.

[0047] The installation process is as follows:

[0048] 1. Install the inner chuck 2 with the locating pin 21 pre-installed on the reducer shoulder, as shown in the figure. Figure 2 As shown;

[0049] 2. Install the saw blade 3 onto the saw blade 3 boss 22 of the inner chuck 2, as shown in FIG. Figure 3 As shown;

[0050] 3. Install the outer chuck 4 onto the positioning boss 23 of the inner chuck 2, as shown in FIG. Figure 4 As shown;

[0051] 4 Install the pressure plate 5 onto the positioning boss 3 24 of the inner chuck 2. The pressure plate 5 and the outer chuck 4 have flower-shaped grooves. When the locking device is working, the pressure plate 5 rotates 45° so that the boss of the groove presses the convex claws of the chuck to achieve compression. When replacing the saw blade 3, the pressure plate 5 is rotated 45° in the opposite direction to replace the saw blade 3. Figure 5 As shown;

[0052] 5. Install the locking hydraulic cylinder on the output shaft 1 of the reducer, and pass high-pressure oil into the hydraulic chamber of the cylinder body to make the piston rod 9 receive tensile stress and produce elastic stretching, then tighten the hydraulic cylinder locking nut 8, and then unload the high-pressure oil, the piston rod 9 will produce elastic recovery, generate tension, and then press the pressure plate 5, the outer chuck 4, and the saw blade 3 to achieve reliable locking of the saw blade 3, such as Figure 1 shown.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new saw blade locking device, characterized in that: It includes an inner chuck, a clamping assembly, and a locking cylinder. The inner chuck is sleeved on the outer side of the output shaft of the reducer and is arranged in close contact with the shoulder of the output shaft of the reducer. The inner chuck is provided with a mounting position for mounting a saw blade. The clamping assembly is arranged on the side of the saw blade away from the inner chuck. The locking cylinder includes a cylinder body and a piston rod, and the end of the reducer output shaft is provided with a mounting position corresponding to the piston rod, which is used to match and fix the piston rod therewith; A clamping plate is fixedly provided at one end of the cylinder body adjacent to the piston rod, and the clamping plate is used to clamp the clamping assembly; A locking rod is provided at one end of the piston rod away from the output shaft, a through hole corresponding to the locking rod is opened at one end of the cylinder body away from the clamping plate, a locking nut is provided corresponding to the locking rod, and the locking nut is arranged on the outside of the cylinder body; The outer side surface of the inner chuck is provided with three bosses with gradually decreasing diameters, namely, boss one, boss two, and boss three. The clamping assembly comprises an outer chuck and a pressure plate. The saw blade is sleeved on the outer side of boss one, the outer chuck is sleeved on the outer side of boss two, the pressure plate is sleeved on the outer side of boss three, and the clamping plate is used to clamp the pressure plate. The thickness of the saw blade is greater than the width of the boss one, the outer chuck fits the outer side surface of the saw blade, the outer chuck extends toward the boss one to form a boss, the boss fits the inner hole of the saw blade, and a gap is reserved between the boss and the boss one; The clamping plate is a disc, the outer edge of the disc extends toward the pressure plate to form a pressure ring, the inner hole of the disc extends toward the inner side of the cylinder body to form a connecting ring, the cylinder body is a round tube, the outer side surface of the connecting ring fits with the inner side surface of the cylinder body, the inner side surface of the connecting ring fits with the outer wall of the piston rod, and the disc is fixed to the cylinder body by bolts; the inner and outer walls of the connecting ring are both provided with sealing members, a hydraulic cavity is formed between the piston portion of the piston rod and the connecting ring, and a hydraulic pipeline connected to the hydraulic cavity is provided on the cylinder body; The piston rod is also provided with a corresponding positioning block, the end surface of the reducer output shaft is provided with a groove corresponding to the positioning block, and the piston rod is provided with a shaft shoulder corresponding to the positioning block; The piston rod is connected to the output shaft of the reducer through threads, an internal thread hole is opened on the end face of the reducer, and an external thread is arranged on the end of the piston rod.

2. The novel saw blade locking device according to claim 1 is characterized in that: The inner chuck is provided with a positioning pin, and the saw blade and the outer chuck are provided with a positioning hole corresponding to the positioning pin.

3. The novel saw blade locking device according to claim 1 is characterized in that: The pressure plate and the outer clamping plate are rotatably clamped by means of grooves and protrusions.

4. The novel saw blade locking device according to claim 1 is characterized in that: A guide pin is also installed on the cylinder body, and the guide pin penetrates the cylinder body and extends into the interior. A strip hole corresponding to the guide pin is provided on the piston rod, and the guide pin is used to prevent the piston rod from rotating radially.

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