A quick replacement positioning structure of a saw blade cutter

Abstract

The utility model discloses a quick replacement positioning structure of saw blade cutter, including mounting seat, the top bolt connection of mounting seat has the connecting disc, the top bolt connection of connecting disc has the placement tray, and the inside center of connecting disc is slidably connected with positioning assembly, the outer wall sleeve joint of positioning assembly has saw blade body, and the top of placement tray is placed to saw blade body, the inside bolt connection of mounting seat has drive mechanism, and the drive end extrusion of drive mechanism is in the inside of positioning assembly. The utility model discloses the cooperation design of drive mechanism and positioning assembly, and the vertical thrust is converted into the transverse clamping force, need not traditional bolt dismounting or manual calibration operation, realizes the quick positioning of saw blade and automatic reset, and the time -consuming of saw blade replacement is greatly shortened, and the equipment downtime is reduced, and the replacement and positioning efficiency in the saw blade processing process are effectively promoted, especially suitable for batch saw blade processing scene, satisfies efficient production demand.

Description

Technical Field

[0001] This utility model relates to the field of saw blade processing technology, and in particular to a quick-change positioning structure for saw blade tools. Background Technology

[0002] During saw blade processing and use, the replacement and positioning of saw blade tools are key to ensuring processing accuracy and efficiency. Traditional saw blade positioning structures often use bolt fastening or multi-component splicing for positioning, which have problems such as cumbersome replacement process, long positioning time, and complicated operation steps.

[0003] In batch processing scenarios, frequent saw blade changes lead to prolonged equipment downtime, severely impacting production efficiency. Simultaneously, traditional positioning methods rely on manual adjustments, which are prone to operational errors resulting in insufficient positioning accuracy, thus affecting saw blade processing quality and failing to meet the demands of modern production for efficient and precise positioning. Therefore, this invention proposes a quick-change positioning structure for saw blades. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a quick-change positioning structure for saw blades, so as to realize the quick disassembly and assembly and precise positioning of saw blades, simplify the operation process, improve production efficiency, and at the same time ensure positioning stability and saw blade processing accuracy.

[0005] To solve the above technical problems, the present invention provides a quick-change positioning structure for saw blades, including a mounting base, a connecting plate bolted to the top of the mounting base, a placement plate bolted to the top of the connecting plate, and a positioning component slidably connected to the center of the connecting plate. The outer wall of the positioning component is fitted with a saw blade body, and the saw blade body is placed on the top of the placement plate. The internal bolts of the mounting base are connected to a drive mechanism, and the drive end of the drive mechanism is pressed into the interior of the positioning component. The drive mechanism presses against the interior of the positioning component, converting the vertical thrust into a horizontal thrust. This allows the positioning component to slide from the center outwards within the connecting plate, enabling rapid positioning and fixation of the saw blade body placed on the placement plate.

[0006] The present invention is further configured such that the outer wall of the mounting base is provided with a plurality of external connection holes.

[0007] Through the above technical solution, the external connection hole is used to realize the detachable connection between the mounting base and the external processing equipment. The operator can use fasteners such as bolts to pass through the external connection hole to fix the entire positioning structure stably in the designated position of the equipment. The circumferential distribution design of multiple connection holes can evenly distribute the force on the structure, avoid excessive force on a single connection point causing structural displacement, and at the same time facilitate the adjustment of the fixing position according to the installation requirements of different equipment, thereby improving the versatility and installation stability of the structure.

[0008] The present invention is further configured such that: the positioning component includes three circumferentially distributed sliders that are slidably connected inside the connecting disk; each of the three sliders has a support block fixedly connected to its opposite wall; each of the three support blocks has a plurality of protective strips fixedly connected to its outer wall; and each of the three sliders has a spring sheet pressed and adhered to its outer peripheral wall.

[0009] Through the above technical solution, three circumferentially distributed sliders constitute the core sliding unit of the positioning component, and their synchronous sliding can achieve uniform clamping of the saw blade's inner hole. The support block, as a component that directly contacts the saw blade, moves synchronously with the slider through a fixed connection, thereby providing radial support for the saw blade. The protective strip is made of elastic and wear-resistant material, which on the one hand increases the friction between the support block and the saw blade's inner hole, preventing the saw blade from rotating and shifting during processing, and on the other hand avoids wear on the saw blade's inner hole caused by hard contact between the support block and the saw blade, thus protecting the saw blade's precision. The spring sheet, through its own elasticity, always applies a preload force towards the center to the slider. When the drive mechanism releases the pressure, it can automatically reset the slider, facilitating the next saw blade replacement, and at the same time, it helps maintain the stable clamping force of the slider in the positioning state.

[0010] The present invention is further configured such that: the bottom of the slider is T-shaped and is slidably connected to the T-shaped groove opened at the corresponding position inside the connecting plate, while the slider is located inside the limiting groove opened at the corresponding position inside the placement plate.

[0011] Through the above technical solution, the T-shaped slider and the T-shaped groove form a matching sliding pair. The T-shaped design can limit the vertical displacement of the slider, prevent the slider from detaching from the connecting plate during sliding, and ensure sliding stability. At the same time, the groove guides the sliding trajectory of the slider, ensuring that the three sliders move synchronously in the radial direction and avoiding positioning eccentricity caused by slider offset. The limiting groove of the placement plate and the top of the slider form a secondary limiting, further constraining the movement direction of the slider, reducing the horizontal sway of the slider, making the slider drive the support block to clamp the saw blade more accurately, and improving the overall positioning accuracy.

[0012] The present invention is further configured such that: a fixing groove is provided at the inner end of the slide groove, and one end of the spring piece is bent and inserted into the fixing groove.

[0013] Through the above technical solution, the fixing groove provides a stable fixing point for the spring sheet. The bending structure at one end of the spring sheet matches the shape of the fixing groove, which can prevent the spring sheet from falling off or shifting during the force process, and ensure that the elastic force of the spring sheet on the slider is stable and lasting. At the same time, the other end of the spring sheet is pressed and adhered to the outer peripheral wall of the slider. When the slider slides outward, the spring sheet is compressed and stores elastic potential energy. When the squeezing force of the drive mechanism is released, the elastic potential energy is released, which drives the slider to reset along the groove to the center. This structural design realizes the stable realization of the reliable installation and reset function of the spring sheet.

[0014] The present invention is further configured such that: the driving mechanism includes a cylinder bolted to the inside of the mounting base, and the end face of the driving rod of the cylinder is threaded with a pressing head, and the pressing head presses against the inner wall of the three support blocks.

[0015] Through the above technical solution, the cylinder serves as the power source, fixed inside the mounting base by bolts to ensure stable power output and a compact structure. The telescopic movement of the cylinder drive rod can drive the extrusion head to move vertically. The fit design between the extrusion head and the inner wall of the support block converts the vertical thrust output by the cylinder into the radial outward thrust of the support block, thereby pushing the slider to slide along the groove to clamp the saw blade. The threaded connection between the extrusion head and the drive rod allows the operator to replace extrusion heads of different diameters or shapes according to the inner hole size of the saw blade, adapting to the positioning requirements of different specifications of saw blades and improving the versatility of the structure. At the same time, the threaded connection allows for fine adjustment of the extrusion head, ensuring consistent fit with the inner walls of the three support blocks, ensuring uniform force on the three support blocks, and preventing the saw blade from being positioned off-center.

[0016] The present invention is further configured such that the outer walls of the three support blocks are arc-shaped, and their inner walls are inclined from top to bottom.

[0017] Through the above technical solutions, the arc-shaped design of the outer wall of the support block matches the circular structure of the inner hole of the saw blade, which can increase the contact area between the support block and the inner hole of the saw blade, so that the clamping force is transmitted to the saw blade more evenly, reducing saw blade deformation caused by local stress concentration, and improving clamping stability. The inclined design of the inner wall of the support block is adapted to the shape of the outer wall of the extrusion head. When the extrusion head moves vertically upward, the inclined inner wall can efficiently convert the vertical extrusion force into radial thrust, reduce force loss, and ensure that the slider can quickly respond to the action of the drive mechanism to achieve rapid positioning of the saw blade. In addition, the inclined inner wall can also guide the extrusion head to accurately embed into the central area between the three support blocks, avoiding misalignment between the extrusion head and the support blocks, and ensuring the reliability of power transmission.

[0018] The beneficial effects of this utility model are as follows: 1. The saw blade quick-change positioning structure proposed in this utility model transforms vertical thrust into lateral clamping force through the cooperative design of the drive mechanism and positioning components. It eliminates the need for traditional bolt disassembly or manual calibration, enabling quick positioning and automatic reset of the saw blade. This significantly shortens the saw blade replacement time, reduces equipment downtime, and effectively improves the replacement and positioning efficiency during saw blade processing. It is especially suitable for batch saw blade processing scenarios and meets the needs of high-efficiency production. 2. The saw blade tool quick-change positioning structure proposed in this utility model ensures positioning accuracy and operational stability through multi-dimensional structural design: three circumferentially distributed sliders slide along T-shaped grooves and limiting grooves to ensure uniform clamping of the saw blade by the support block and avoid positioning eccentricity; the arc-shaped outer wall of the support block is adapted to the inner hole of the saw blade, and the protective strip can prevent saw blade wear and rotational deviation during processing, ensuring the processing quality of the saw blade; at the same time, the external connection hole of the mounting base facilitates stable connection with different equipment, the threaded connection design of the extrusion head can be adapted to saw blades of different specifications, and the stable installation of the spring piece ensures reliable reset, improving the versatility of the structure and long-term stability of use. Attached Figure Description

[0019] Figure 1 This is a first structural diagram of a quick-change positioning structure for saw blades according to this utility model; Figure 2 This is a second structural diagram of a quick-change positioning structure for saw blades according to this utility model; Figure 3 This is a front view of a quick-change positioning structure for saw blades according to this utility model; Figure 4 for Figure 3 Cross-sectional view of surface AA; Figure 5 This is an exploded view of the positioning component in a quick-change positioning structure for saw blades according to this utility model; Figure 6 This is a structural diagram of the placement disc in a quick-change positioning structure for saw blades according to this utility model.

[0020] In the diagram: 1. Mounting base; 11. External connection hole; 2. Connecting plate; 21. Slide groove; 22. Fixing groove; 3. Placement plate; 31. Limiting groove; 4. Saw blade body; 5. Positioning assembly; 51. Slider; 52. Support block; 53. Protective strip; 54. Spring; 6. Drive mechanism; 61. Cylinder; 62. Extrusion head. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] like Figures 1-3 As shown, a quick-change positioning structure for saw blades includes a mounting base 1. The outer wall of the mounting base 1 has multiple external connection holes 11, which are used to detachably connect the mounting base 1 to external processing equipment. Operators can use fasteners such as bolts to pass through the external connection holes 11 to stably fix the entire positioning structure in the designated position of the equipment. The circumferential distribution design of the multiple connection holes can evenly distribute the force on the structure, avoid excessive force on a single connection point causing structural displacement, and facilitate adjustment of the fixing position according to the installation requirements of different equipment, thereby improving the versatility and installation stability of the structure.

[0023] like Figures 3-6 As shown, a connecting plate 2 is bolted to the top of the mounting base 1, and a placement plate 3 is bolted to the top of the connecting plate 2. A positioning component 5 is slidably connected to the center of the connecting plate 2. The positioning component 5 includes three circumferentially distributed sliders 51 slidably connected inside the connecting plate 2. These three circumferentially distributed sliders 51 constitute the core sliding unit of the positioning component 5. Their synchronous sliding enables uniform clamping of the saw blade's inner hole. Support blocks 52 are fixedly connected to the opposite walls of each of the three sliders 51. As components directly in contact with the saw blade, the support blocks 52, through their fixed connection with the sliders 51, move synchronously with the sliders, achieving radial support for the saw blade. Multiple protective strips 53 are fixedly connected to the outer wall. The protective strips 53 are made of elastic wear-resistant material. On the one hand, they can increase the friction between the support block 52 and the inner hole of the saw blade to prevent the saw blade from rotating and shifting during processing. On the other hand, they can avoid wear of the inner hole of the saw blade caused by hard contact between the support block 52 and the saw blade, thus protecting the precision of the saw blade. The outer peripheral walls of the three sliders 51 are all pressed and fitted with spring sheets 54. The spring sheets 54 always apply a preload force towards the center to the sliders 51 through their own elasticity. When the drive mechanism 6 releases the pressure, it can drive the sliders 51 to automatically reset, which provides convenience for the next saw blade replacement. At the same time, it helps to maintain the stable clamping force of the sliders 51 in the positioning state. The bottom of the slider 51 is T-shaped and slidably connected to the T-shaped groove 21 inside the connecting plate 2. At the same time, the slider 51 is located inside the limiting groove 31 inside the placing plate 3. The T-shaped slider 51 and the T-shaped groove 21 form a matching sliding pair. The T-shaped design can limit the vertical displacement of the slider 51, prevent the slider 51 from detaching from the connecting plate 2 during sliding, and ensure sliding stability. At the same time, the groove 21 guides the sliding trajectory of the slider 51, ensuring that the three sliders 51 move synchronously in the radial direction and avoid positioning eccentricity caused by the offset of the slider 51. The limiting groove 31 of the placing plate 3 and the top of the slider 51 form a secondary limiting, further constraining the movement direction of the slider, reducing the horizontal sway of the slider 51, and making the slider 51 drive the support block 52 to clamp the saw blade more accurately, thus improving the overall positioning accuracy. A fixing groove 22 is provided at the inner end of the slide groove 21, and one end of the spring piece 54 is bent and inserted into the fixing groove 22. The fixing groove 22 provides a stable fixing point for the spring piece 54. The bent structure at one end of the spring piece 54 matches the shape of the fixing groove 22, which can prevent the spring piece 54 from falling off or displacing during the force process, and ensure that the elastic force of the spring piece 54 on the slider 51 is stable and lasting. At the same time, the other end of the spring piece 54 is pressed and adhered to the outer peripheral wall of the slider 51. When the slider 51 slides outward, the spring piece 54 is compressed and stores elastic potential energy. When the squeezing force of the drive mechanism is released, the elastic potential energy is released, driving the slider 51 to reset along the slide groove to the center. This structural design realizes the stable realization of the reliable installation and reset function of the spring piece 54.

[0024] like Figures 2-4 As shown, the outer wall of the positioning component 5 is fitted with a saw blade body 4, and the saw blade body 4 is placed on the top of the placement plate 3. The internal bolt of the mounting base 1 is connected to the drive mechanism 6, and the drive end of the drive mechanism 6 is pressed into the interior of the positioning component 5. The drive mechanism 6 includes a cylinder 61 bolted to the inside of the mounting base 1. The end face of the drive rod of the cylinder 61 is threaded with a pressing head 62, which presses against the inner wall of the three support blocks 52. The cylinder 61 serves as a power source and is fixed inside the mounting base 1 by bolts to ensure stable power output and a compact structure. The extension and retraction of the drive rod of the cylinder 61 can drive the pressing head 62 to move vertically. The fit design between the pressing head 62 and the inner wall of the support block 52 converts the vertical thrust output by the cylinder 61 into a radial outward thrust of the support block, which in turn pushes the slider 51 to slide along the slide groove 21 to clamp the saw blade. The threaded connection between the pressing head 62 and the drive rod allows the operator to replace pressing heads of different diameters or shapes according to the inner hole size of the saw blade, adapting to the positioning requirements of different specifications of saw blades and improving the versatility of the structure. At the same time, the threaded connection allows for fine adjustment of the pressing head 62 to ensure consistent fit with the inner wall of the three support blocks 52, ensuring uniform force on the three support blocks 52 and preventing the saw blade from being misaligned. The outer walls of the three support blocks 52 are arc-shaped, and their inner walls are inclined from top to bottom. The arc design of the outer walls of the support blocks 52 matches the circular structure of the inner hole of the saw blade, which can increase the contact area between the support blocks and the inner hole of the saw blade, so that the clamping force is transmitted to the saw blade more evenly, reducing saw blade deformation caused by local stress concentration, and improving clamping stability. The inclined design of the inner wall of the support blocks is adapted to the shape of the outer wall of the extrusion head 62. When the extrusion head moves vertically upward, the inclined inner wall can efficiently convert the vertical extrusion force into radial thrust, reduce force loss, and ensure that the slider 51 can quickly respond to the action of the drive mechanism to achieve rapid positioning of the saw blade. In addition, the inclined inner wall can also guide the extrusion head 62 to accurately embed into the central area between the three support blocks 52, avoiding misalignment between the extrusion head 62 and the support blocks 52, and ensuring the reliability of power transmission. The drive mechanism 6 presses against the interior of the positioning component 5, converting the vertical thrust into a horizontal thrust, so that the positioning component 5 slides from the center to the surrounding area within the connecting plate 2, thereby achieving rapid positioning and fixing of the saw blade body 4 placed on the placement plate 3.

[0025] In use, the drive rod of cylinder 61 in the drive mechanism 6 extends, driving the extrusion head 62 to move vertically. The extrusion head 62 extrudes the inclined inner wall of the three support blocks 52 in the positioning assembly 5, converting the vertical thrust into a horizontal thrust. This pushes the slider 51, which is fixed to the support block 52, to slide synchronously from the center to the surrounding areas along the T-shaped groove 21 of the connecting plate 2 and the limiting groove 31 of the placement plate 3. This makes the protective strip 53 on the outer wall of the support block 52 fit tightly against the inner hole of the saw blade body 4, thus fixing the saw blade in place. At the same time, the slider 51 extrudes the spring 54, causing it to deform and store energy. When replacing the saw blade, the drive rod of cylinder 61 retracts, the extrusion head 62 releases the extrusion, and the spring 54 releases its potential energy, causing the slider 51 and the support block 52 to reset and separate from the inner hole of the saw blade, completing the disassembly of the saw blade and preparation for the next replacement.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quick-change positioning structure for saw blades, comprising a mounting base (1), characterized in that: The top of the mounting base (1) is bolted to a connecting plate (2), the top of the connecting plate (2) is bolted to a placement plate (3), and a positioning component (5) is slidably connected to the center of the connecting plate (2). The outer wall of the positioning component (5) is fitted with a saw blade body (4), and the saw blade body (4) is placed on the top of the placement plate (3). The interior of the mounting base (1) is bolted with a drive mechanism (6), and the drive end of the drive mechanism (6) is pressed into the interior of the positioning component (5). By using the drive mechanism (6) to press against the interior of the positioning component (5), the vertical thrust is converted into a horizontal thrust, causing the positioning component (5) to slide from the center to the surrounding area within the connecting plate (2), thereby achieving rapid positioning and fixing of the saw blade body (4) placed on the placement plate (3).

2. The quick-change positioning structure for saw blades according to claim 1, characterized in that: The outer wall of the mounting base (1) is provided with multiple external connection holes (11).

3. The quick-change positioning structure for saw blades according to claim 1, characterized in that: The positioning component (5) includes three circumferentially distributed sliders (51) that are slidably connected inside the connecting disk (2). Each of the three sliders (51) has a support block (52) fixedly connected to its opposite wall. Each of the three support blocks (52) has a plurality of protective strips (53) fixedly connected to its outer wall. Each of the three sliders (51) has a spring sheet (54) pressed and attached to its outer peripheral wall.

4. The quick-change positioning structure for saw blades according to claim 3, characterized in that: The bottom of the slider (51) is T-shaped and is slidably connected to the T-shaped groove (21) opened at the corresponding position inside the connecting plate (2). At the same time, the slider (51) is located inside the limiting groove (31) opened at the corresponding position inside the placement plate (3).

5. The quick-change positioning structure for saw blades according to claim 4, characterized in that: The inner end of the slide (21) is provided with a fixing groove (22), and one end of the spring piece (54) is bent and inserted into the fixing groove (22).

6. The quick-change positioning structure for saw blades according to claim 5, characterized in that: The drive mechanism (6) includes a cylinder (61) bolted to the inside of the mounting base (1), and the end face of the drive rod of the cylinder (61) is threaded with a pressing head (62), and the pressing head (62) presses against the inner wall of the three support blocks (52).

7. The quick-change positioning structure for saw blades according to claim 6, characterized in that: The outer walls of the three support blocks (52) are arc-shaped, and their inner walls are inclined from top to bottom.

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