PCD (Poly Crystal Diamond) saw blade clamping structure

Abstract

The utility model relates to the field of machinery, and discloses a PCD saw blade clamping structure which comprises a support and further comprises a rotating device, a clamping assembly and a push-pull device, the rotating device is arranged on the support, the push-pull device is arranged on the support or the rotating device, and the clamping assembly is arranged on the support or the clamping assembly. The clamping assembly is arranged on the rotating device, the rotating device is used for installing a PCD saw blade cutter, the rotating device drives the PCD saw blade cutter to rotate, and the push-pull device is used for driving the clamping assembly to clamp the PCD saw blade cutter on a movable part of the rotating device.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a PCD saw blade clamping structure. Background Art

[0002] The floor knife is a kind of PCD saw blade, which can be used for grooving and finishing the floor. The PCD saw blade has multiple blades, which are usually made of high-hardness materials such as diamond or alloy steel, and usually need to be ground and milled. After processing, the blades are arranged around the center of the cutter head of the PCD saw blade. In order to facilitate the processing of the PCD saw blade, the PCD saw blade is usually sleeved on the horizontally arranged rotating shaft using the opening in the middle, so as to rotate the PCD saw blade to process each blade on the PCD saw blade. At present, the way to rotate the PCD saw blade is usually to use a gear shifting mechanism to shift the blade on the PCD saw blade, but during the shifting process, the PCD saw blade may rotate due to inertia, affecting the processing accuracy. In addition, after the PCD saw blade is processed, the blades on the PCD saw blade need to be detected and measured. If the gear shifting mechanism is used again to shift the blades one by one, the efficiency is low. Utility Model Content

[0003] The technical problem to be solved by the utility model is to solve at least one of the technical problems mentioned above.

[0004] The solution of the utility model to solve the technical problem is:

[0005] A PCD saw blade clamping structure comprises a bracket, a rotating device, a clamping assembly and a push-pull device, wherein the rotating device is arranged on the bracket, the push-pull device is arranged on the bracket or the rotating device, the clamping assembly is arranged on the rotating device, the rotating device is used to install a PCD saw blade, the rotating device drives the PCD saw blade to rotate, and the push-pull device is used to drive the clamping assembly to clamp the PCD saw blade on the movable part of the rotating device.

[0006] As a further improvement of the above technical solution, the rotating device includes a motor and a core shaft, the fixed part of the motor is installed on the bracket, the motor drives the core shaft to rotate, the clamping structure is arranged on the core shaft, and the clamping assembly is coaxially driven with the core shaft.

[0007] As a further improvement of the above technical solution, the clamping assembly includes a spacer and a pressure plate, the spacer is sleeved on the core shaft, the spacer is fixedly connected to the core shaft, a first axial hole is opened on the pressure plate, the spacer is inserted into the first axial hole, a flange is provided on the outer side of the spacer, a PCD saw blade is installed between the pressure plate and the flange, and the push-pull device drives the pressure plate to move axially along the core shaft, so that the pressure plate moves toward the flange to clamp the PCD saw blade.

[0008] As a further improvement of the above technical solution, the clamping assembly also includes a first fixed block and a first movable block, the first fixed block is fixed on the bracket, the first movable block is arranged on the pressure plate, a first protrusion is fixed on the first fixed block, a second protrusion is fixed on the first movable block, the first protrusion and the second protrusion are both arranged between the first fixed block and the first movable block, and the first protrusion and the second protrusion are used to clamp the edge of the PCD saw blade.

[0009] As a further improvement of the above technical solution, the first protrusion is arranged in a ring shape, and the second protrusion is arranged in a ring shape.

[0010] As a further improvement of the above technical solution, a plurality of first weight-reducing holes are provided on the first fixed block, and a plurality of second weight-reducing holes are provided on the first movable block.

[0011] As a further improvement of the above technical solution, the push-pull device includes a cylinder, a limit block and a pull rod. The cylinder drives the pull rod to reciprocate along the length direction of the core shaft. The limit block is arranged on the pull rod. The limit block is used to apply pressure to the pressure plate so that the pressure plate moves toward the direction of the flange.

[0012] As a further improvement of the above technical solution, the push-pull device also includes a flange plate, which is fixed on the core shaft, and the motor fixing part is arranged in the middle of the core shaft, so that the motor is arranged between the flange plate and the spacer sleeve, and the fixing part of the cylinder is fixed on the flange plate. A channel extending along the length direction of the core shaft is opened on the core shaft, and the two ends of the channel respectively pass through the two end surfaces of the core shaft, one end of the pull rod is connected to the cylinder, and the other end of the pull rod passes through the channel and is connected to the limit block.

[0013] As a further improvement of the above technical solution, the push-pull device also includes a rotating joint and a connecting frame, the connecting frame is fixed on the fixed part of the motor or the bracket, one end of the rotating joint is fixed on the connecting frame, and the other end of the rotating joint is fixedly connected to the fixed part of the cylinder.

[0014] As a further improvement of the above technical solution, a dust collection box is fixed on the bracket, and the dust collection box is arranged below the PCD saw blade.

[0015] The beneficial effects of the utility model are as follows: the PCD saw blade can be installed on the rotating device, and the clamping assembly is driven by the push-pull device so that the PCD saw blade is clamped and fixed on the rotating device. By arranging the clamping assembly on the rotating device, the PCD saw blade can still be axially fixed during the rotation process, thereby ensuring that the PCD saw blade is accurately positioned when being processed. After completing the processing of a single blade on the PCD saw blade, the PCD saw blade can be moved by an external gear shifting mechanism. In order to prevent the PCD saw blade from excessively rotating after being moved by the gear shifting mechanism, the rotating device can provide a force to stop the PCD saw blade from rotating, thereby ensuring that the PCD saw blade rotates accurately. In addition, after completing the processing of all blades of the PCD saw blade, if the PCD saw blade needs to be rechecked, the PCD saw blade can be driven to rotate by the rotating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a rear view of the PCD saw blade clamping structure of the utility model;

[0017] Figure 2 The utility model Figure 1 The cross-sectional view at AA in FIG. 1 shows that the motor is not cut open;

[0018] Figure 3 It is a front view of the PCD saw blade clamping structure of the utility model;

[0019] Figure 4 The utility model Figure 3 The cross-sectional isometric view at BB in the figure, in which the motor is not cut open;

[0020] Figure 5 It is a structural schematic diagram of a PCD saw blade in the prior art.

[0021] In the accompanying drawings: 1- bracket, 2- rotating device, 21- motor, 22- spindle, 3- clamping assembly, 31- spacer, 311- flange, 32- pressure plate, 33- first fixed block, 331- first protrusion, 332- first weight-reducing hole, 34- first movable block, 341- second protrusion, 342- second weight-reducing hole, 4- push-pull device, 41- cylinder, 42- pull rod, 43- flange plate, 44- rotating joint, 45- connecting frame, 46- limit block, 47- nut, 5- dust suction box, 6- PCD saw blade. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the above briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of them. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0023] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the utility model can be combined interchangeably without conflicting with each other.

[0024] Reference Figure 1 to Figure 4 A PCD saw blade clamping structure includes a bracket 1, a rotating device 2, a clamping assembly 3 and a push-pull device 4, wherein the rotating device 2 is arranged on the bracket 1, the push-pull device 4 is arranged on the bracket 1 or the rotating device 2, the clamping assembly 3 is arranged on the rotating device 2, the rotating device 2 is used to install a PCD saw blade 6, the rotating device 2 drives the PCD saw blade 6 to rotate, and the push-pull device 4 is used to drive the clamping assembly 3 to clamp the PCD saw blade 6 on the movable part of the rotating device 2.

[0025] As can be seen from the above, the PCD saw blade 6 can be installed on the rotating device 2, and the clamping assembly 3 is driven by the push-pull device 4 so that the PCD saw blade 6 is clamped and fixed on the rotating device 2. By setting the clamping assembly 3 on the rotating device 2, the PCD saw blade 6 can still be axially fixed during the rotation process, thereby ensuring that the PCD saw blade 6 is accurately positioned when being processed. After completing the processing of a single blade on the PCD saw blade 6, the PCD saw blade 6 can be moved by an external gear shifting mechanism. In order to prevent the PCD saw blade 6 from excessively rotating after being moved by the gear shifting mechanism, the rotating device 2 can provide a force to stop the PCD saw blade 6 from rotating, thereby ensuring that the PCD saw blade 6 rotates accurately. In addition, after completing the processing of all blades of the PCD saw blade 6, if the PCD saw blade 6 needs to be rechecked, the PCD saw blade 6 can be driven to rotate by the rotating device 2.

[0026] The rotating device 2 is used to drive the PCD saw blade 6 to rotate. In some embodiments, the rotating device 2 includes a motor 21 and a spindle 22. The fixed part of the motor 21 is installed on the bracket 1. The motor 21 drives the spindle 22 to rotate. The clamping structure is arranged on the spindle 22. The clamping assembly 3 is coaxially driven with the spindle 22. When in use, the spindle 22 is driven to rotate by the motor 21, and the clamping assembly 3 arranged on the spindle 22 rotates synchronously with the rotation of the spindle 22. The PCD saw blade 6 clamped by the clamping assembly 3 rotates with the rotation of the clamping assembly 3.

[0027] The clamping assembly 3 is used to clamp the PCD saw blade 6. In some embodiments, the clamping assembly 3 includes a spacer 31 and a pressure plate 32. The spacer 31 is sleeved on the mandrel 22. The spacer 31 is fixedly connected to the mandrel 22. A first axial hole is provided on the pressure plate 32. The spacer 31 is inserted into the first axial hole. A flange 311 is provided on the outer side of the spacer 31. The PCD saw blade 6 is installed between the pressure plate 32 and the flange 311. The push-pull device 4 drives the pressure plate 32 to move along the axial direction of the mandrel 22, so that the pressure plate 32 moves toward the flange 311 to clamp the PCD saw blade 6. When in use, the PCD saw blade 6 can be installed on the spacer 31, and the spacer 31 is fixedly connected to the mandrel 22, for example, by screws. The first axial hole is formed on the pressing plate 32, and the pressing plate 32 is sleeved on the spacer 31 through the first axial hole. The pressing plate 32 is pressed toward the flange 311 by the push-pull device 4, and the flange 311 and the pressing plate 32 clamp the PCD saw blade 6. In this way, when the motor 21 drives the spindle 22 to rotate, the spacer 31 rotates with the spindle 22. At the same time, when the pushing and pulling device 4 presses the pressing plate 32 toward the flange 311, the static friction between the pressing plate 32, the PCD saw blade 6 and the flange 311 can make the pressing plate 32, the PCD saw blade 6 and the flange 311 rotate synchronously.

[0028] In actual use, a positioning hole is provided at the center of the middle of the PCD saw blade 6, and the positioning hole of the PCD saw blade 6 is sleeved on the spacer 31, so that one end surface of the PCD saw blade 6 is pressed by the flange 311, and the other end surface of the PCD saw blade 6 is pressed by the pressure plate 32, so as to realize the axial limit of the PCD saw blade 6. The flange 311 and the pressure plate 32 are used to press the middle position of the two end surfaces of the PCD saw blade 6 respectively.

[0029] The flange 311 and the pressure plate 32 can be used to clamp the middle part of the PCD saw blade 6. In order to make the structure of the PCD saw blade 6 stable when it is clamped, it is also necessary to clamp the edge of the PCD saw blade 6. In some embodiments, the clamping assembly 3 also includes a first fixed block 33 and a first movable block 34, the first fixed block 33 is fixed to the bracket 1, the first movable block 34 is arranged on the pressure plate 32, a first protrusion 331 is fixed to the first fixed block 33, a second protrusion 341 is fixed to the first movable block 34, the first protrusion 331 and the second protrusion 341 are both arranged between the first fixed block 33 and the first movable block 34, and the first protrusion 331 and the second protrusion 341 are used to clamp the edge of the PCD saw blade 6. When in use, the first protrusion 331 and the second protrusion 341 clamp the edge of the PCD saw blade 6, and the pressure plate 32 and the flange 311 clamp the middle part of the bottom plate to make the structure of the clamped PCD saw blade 6 stable.

[0030] The shape of the edge of the PCD saw blade 6 is generally circular. In order to increase the contact area between the first protrusion 331 and the second protrusion 341 and the PCD saw blade 6 to stabilize the clamping, in some embodiments, the first protrusion 331 is arranged in a ring shape, and the second protrusion 341 is arranged in a ring shape.

[0031] In order to reduce the weight of the first fixed block 33 and the first movable block 34 and reduce production materials to achieve the purpose of reducing costs, in some embodiments, the first fixed block 33 is provided with a plurality of first weight-reducing holes 332 , and the first movable block 34 is provided with a plurality of second weight-reducing holes 342 .

[0032] The push-pull device 4 is used to press the pressing plate 32 so that the PCD saw blade 6 is clamped between the pressing plate 32 and the flange 311. In some embodiments, the push-pull device 4 includes a cylinder 41, a stopper 46 and a pull rod 42. The cylinder 41 drives the pull rod 42 to reciprocate along the length direction of the mandrel 22. The stopper 46 is arranged on the pull rod 42. The stopper 46 is used to apply pressure to the pressing plate 32 so that the pressing plate 32 moves toward the flange 311. When in use, the cylinder 41 drives the pull rod 42 to reciprocate along the length direction of the mandrel 22 so that the stopper 46 on the pull rod 42 presses or releases the pressing plate 32. Of course, since the first movable block 34 can also be installed on the pressure plate 32 or the pressure plate 32 is located between the first movable block 34 and the PCD saw blade 6, the pull rod 42 can also drive the limit block 46 to press or release the first movable plate, thereby indirectly applying pressure through the first movable plate to move the pressure plate 32 toward the direction of the flange 311 to clamp the PCD saw blade 6.

[0033] Furthermore, in order to enable the push-pull device 4 to press the pressure plate 32, the pressure plate 32 and the flange 311 can still rotate smoothly with the rotation of the core shaft 22. In some embodiments, the push-pull device 4 also includes a flange plate 43, the flange plate 43 is fixed on the core shaft 22, the fixing portion of the motor 21 is arranged in the middle of the core shaft 22, so that the motor 21 is arranged between the flange plate 43 and the spacer 31, the fixing portion of the cylinder 41 is fixed on the flange plate 43, a channel extending along the length direction of the core shaft 22 is opened on the core shaft 22, and the two ends of the channel respectively pass through the two end surfaces of the core shaft 22, one end of the pull rod 42 is connected to the cylinder 41, and the other end of the pull rod 42 passes through the channel and is connected to the limit block 46. The structure is simple and convenient to set up. Through the setting of the structure, the cylinder 41 can be set on the core shaft 22, so that the cylinder 41 rotates with the rotation of the core shaft 22. The pull rod 42 passes through the channel and can slide relative to the inner wall of the channel, so that the pull rod 42 can also rotate with the rotation of the core shaft 22, and the pull rod 42 is powered by the cylinder 41 and can reciprocate relative to the axial direction along the channel, so that the limit block 46 on the pull rod 42 can also move synchronously with the pull rod 42.

[0034] Optionally, a notch is provided on the limit block 46, and the limit block 46 is inserted into the pull rod 42 along the radial direction of the pull rod 42 through the notch. The pull rod 42 is provided with an external thread, and a nut 47 is matched on the external thread. The limit block 46 is pulled along the axial direction of the shaft pull rod 42 through the nut 47, so that the limit block 46 is against the pressure plate 32 or the first movable plate.

[0035] The cylinder 41 needs to be connected to the air pump through a pipeline, and the external air pump provides gas to the cylinder 41. However, the cylinder 41 is installed on the core shaft 22, so that the cylinder 41 also rotates with the core shaft 22, which may cause the air pipe on the cylinder 41 to be entangled. To this end, in some embodiments, the push-pull device 4 also includes a rotary joint 44 and a connecting frame 45, and the connecting frame 45 is fixed on the fixed part of the motor 21 or the bracket 1, one end of the rotary joint 44 is fixed on the connecting frame 45, and the other end of the rotary joint 44 is fixedly connected to the fixed part of the cylinder 41. When in use, the external air pump is connected to the input end of the rotary joint 44 through the air pipe, and the output end of the rotary joint 44 is connected to the cylinder 41 through the air pipe. The input end of the rotary joint 44 is fixed on the connecting frame 45, and the connecting frame 45 is fixed on the fixed part of the motor 21 to ensure the stable connection of the connecting frame 45. The output end of the rotary joint 44 is connected to the fixed part of the cylinder 41 and is connected to the cylinder body of the cylinder 41 through the air pipe. When the cylinder 41 rotates, the rotary joint 44 can ensure the stable air supply to the cylinder 41. The rotary joint 44 is a product in the prior art, and those skilled in the art can purchase the rotary joint 44 from the market, so the specific structure of the rotary joint 44 is not described here.

[0036] The PCD saw blade 6 will generate some debris and dust during the processing. In order to collect the dust and debris, in some embodiments, a dust box 5 is fixed to the bracket 1, and the dust box 5 is arranged below the PCD saw blade 6. In actual use, an exhaust hole can be arranged on the side wall of the dust box 5 to extract the debris and dust collected by the dust box 5.

[0037] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A PCD saw blade clamping structure, comprising a bracket (1), characterized in that: The PCD saw blade clamping structure also includes: a rotating device (2), a clamping assembly (3) and a push-pull device (4); the rotating device (2) is arranged on the bracket (1); the push-pull device (4) is arranged on the bracket (1) or the rotating device (2); the clamping assembly (3) is arranged on the rotating device (2); the rotating device (2) is used to install a PCD saw blade (6); the rotating device (2) drives the PCD saw blade (6) to rotate; and the push-pull device (4) is used to drive the clamping assembly (3) to clamp the PCD saw blade (6) on the movable part of the rotating device (2).

2. The PCD saw blade clamping structure according to claim 1, characterized in that: The rotating device (2) comprises a motor (21) and a core shaft (22); a fixed portion of the motor (21) is mounted on the bracket (1); the motor (21) drives the core shaft (22) to rotate; the clamping structure is arranged on the core shaft (22); and the clamping assembly (3) is coaxially driven with the core shaft (22).

3. The PCD saw blade clamping structure according to claim 2, characterized in that: The clamping assembly (3) includes a spacer (31) and a pressure plate (32), wherein the spacer (31) is sleeved on the core shaft (22), the spacer (31) is fixedly connected to the core shaft (22), a first axial hole is opened on the pressure plate (32), the spacer (31) is inserted into the first axial hole, a flange (311) is provided on the outer side surface of the spacer (31), and a PCD saw blade (6) is installed between the pressure plate (32) and the flange (311), and the push-pull device (4) drives the pressure plate (32) to move axially along the core shaft (22), so that the pressure plate (32) moves in a direction close to the flange (311) to clamp the PCD saw blade (6).

4. The PCD saw blade clamping structure according to claim 3, characterized in that: The clamping assembly (3) also includes a first fixed block (33) and a first movable block (34), wherein the first fixed block (33) is fixed on the bracket (1), and the first movable block (34) is arranged on the pressure plate (32), a first protrusion (331) is fixed on the first fixed block (33), and a second protrusion (341) is fixed on the first movable block (34), the first protrusion (331) and the second protrusion (341) are both arranged between the first fixed block (33) and the first movable block (34), and the first protrusion (331) and the second protrusion (341) are used to clamp the edge of the PCD saw blade (6).

5. The PCD saw blade clamping structure according to claim 4, characterized in that: The first protrusion (331) is arranged in a ring shape, and the second protrusion (341) is arranged in a ring shape.

6. The PCD saw blade clamping structure according to claim 4, characterized in that: The first fixed block (33) is provided with a plurality of first weight-reducing holes (332), and the first movable block (34) is provided with a plurality of second weight-reducing holes (342).

7. The PCD saw blade clamping structure according to any one of claims 3 to 6, characterized in that: The push-pull device (4) comprises a cylinder (41), a limit block (46) and a pull rod (42); the cylinder (41) drives the pull rod (42) to reciprocate along the length direction of the core shaft (22); the limit block (46) is arranged on the pull rod (42); the limit block (46) is used to apply pressure to the pressure plate (32) so that the pressure plate (32) moves in the direction of the flange (311).

8. The PCD saw blade clamping structure according to claim 7, characterized in that: The push-pull device (4) also includes a flange plate (43), which is fixed on the core shaft (22). The fixing part of the motor (21) is arranged in the middle of the core shaft (22), so that the motor (21) is arranged between the flange plate (43) and the spacer (31). The fixing part of the cylinder (41) is fixed on the flange plate (43). A channel extending along the length direction of the core shaft (22) is opened on the core shaft (22), and the two ends of the channel respectively pass through the two end surfaces of the core shaft (22). One end of the pull rod (42) is connected to the cylinder (41), and the other end of the pull rod (42) passes through the channel and is connected to the limit block (46).

9. The PCD saw blade clamping structure according to claim 8, characterized in that: The push-pull device (4) further comprises a rotating joint (44) and a connecting frame (45), wherein the connecting frame (45) is fixed on a fixed part of the motor (21) or on the bracket (1), one end of the rotating joint (44) is fixed on the connecting frame (45), and the other end of the rotating joint (44) is fixedly connected to a fixed part of the cylinder (41).

10. The PCD saw blade clamping structure according to claim 1, characterized in that: A dust collection box (5) is fixed on the bracket (1), and the dust collection box (5) is arranged below the PCD saw blade (6).

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