Saw blade inspection device

Abstract

The invention discloses a saw blade inspection device which comprises a stand column body, a supporting rod is rotationally connected to the stand column body, a saw blade installation disc face is rotationally connected to the end of the supporting rod, an arc-shaped positioning piece is rotationally connected to the supporting rod, positioning teeth are arranged on the arc-shaped positioning piece, a penetrating groove is formed in the stand column body, and the saw blade installation disc face is rotationally connected to the end of the supporting rod. The arc-shaped positioning pieces can penetrate through the penetrating grooves, and the positioning teeth can be connected with the stand column body in a clamped mode. According to the saw blade inspection device, multi-angle observation can be provided for a saw blade, the flexibility in the inspection process is improved, and the saw blade inspection device is more suitable for the observation angle and the human body structure of workers.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of saw blades, and particularly relates to a saw blade inspection device. TECHNICAL PROBLEM

[0002] For example, the publication number "CN213179944U" discloses a "new diamond saw blade angle inspection equipment", which comprises an inspection table, an installation cavity is arranged in the inspection table, a rotating shaft is rotatably connected to the top of the inspection table, a support disc is fixedly connected to the top end of the rotating shaft, and a fixed plug is fixedly connected to the top of the support disc.

[0003] However, in actual application, due to the insufficient flexibility of the saw blade inspection device, it is inconvenient to adjust the angle during the inspection of the saw blade, and it is not conducive to the observation angle of the face of the worker, and the disc surface and the saw teeth of the saw blade cannot be observed at multiple angles. SUMMARY

[0004] In view of the problem of the existing technology that the observation angle is not flexible mentioned in the background art, the present application provides a saw blade inspection device, which can provide multiple angle observation for the saw blade, improve the flexibility in the inspection process, and be more suitable for the observation angle and human body structure of the worker.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions.

[0006] A saw blade inspection device, comprising a stand body, a support rod is rotatably connected to the stand body, a saw blade mounting disc surface is rotatably connected to the end of the support rod, an arc-shaped positioning piece is rotatably connected to the support rod, positioning teeth are arranged on the arc-shaped positioning piece, a through groove is arranged on the stand body, the arc-shaped positioning piece can pass through the through groove, and the positioning teeth can be clamped and connected with the stand body, wherein the stand body provides a main supporting effect, the support rod connected to the stand body can rotate relative to the stand body, and the rotation axis is perpendicular to the axis of the stand body; the saw blade mounting disc surface is connected to the support rod, wherein the saw blade mounting disc surface can mount a saw blade, since the support rod can rotate relative to the stand body, the axis angle of the saw blade mounting disc surface can change synchronously with the action of the support rod during use, thereby changing the relative angle between the saw blade placed on the saw blade mounting disc surface and the worker, so that the worker can observe according to the appropriate observation angle of the worker, and the orientation angle of the saw blade observation part can be adjusted by rotating the support rod without repositioning the saw blade according to the inspection requirement, thereby improving the flexibility in the monitoring process; further, the arc-shaped positioning piece is rotatably connected to the support rod in the application, wherein the arc-shaped positioning piece can rotate relative to the support rod, and the end of the arc-shaped positioning piece away from the support rod is connected in the through groove, and the positioning teeth are arranged at this position, since the arc-shaped positioning piece passes through the through groove, the inside of the stand body is hollow during use, or the barb that can be clamped with the positioning teeth is arranged, the arc-shaped positioning piece is relatively fixed by the clamping and connecting mode of the positioning teeth with the stand body, and since the downward movement trend of the positioning teeth on the arc-shaped positioning piece is caused by gravity, the positioning teeth are preferably arranged below the arc-shaped positioning piece, so as to ensure the stability of the clamping and connecting.

[0007] As preferred, the post body is sleeved with a clamping sleeve, the bottom of the clamping sleeve is connected with a reset spring, when the reset spring drives the clamping sleeve to rise, the clamping sleeve is clamped and connected with the positioning teeth. The clamping sleeve is sleeved on the post body, so the structure of the clamping sleeve is annular structure with thin wall thickness, and the clamping sleeve can be displaced up and down relative to the post body, when the edge of the clamping sleeve is displaced to the through groove, the clamping sleeve can be clamped and connected with the positioning teeth on the arc-shaped positioning piece extended from both sides of the through groove, so that the limiting effect of the arc-shaped positioning piece is achieved. Further, the reset spring is arranged on the clamping sleeve, one end of the reset spring is connected with the clamping sleeve, and the other end is connected with the post body, so that the reset spring is pressed during the downward movement of the clamping sleeve, at this time, the clamping sleeve is separated from the through groove, and the arc-shaped positioning piece can be freely moved in the through groove, then when the arc-shaped positioning piece is moved to the appropriate position, the staff releases the clamping sleeve, the clamping sleeve is quickly displaced upward under the driving of the reset spring, so that the clamping sleeve is clamped and connected with the positioning teeth on the arc-shaped positioning piece, the arc-shaped positioning piece is limited, the arc-shaped positioning piece cannot be displaced in the through groove, and after the staff releases the clamping sleeve, the clamping sleeve can always be clamped with the positioning teeth through the elastic effect of the reset spring, so that the relative movement of the arc-shaped positioning piece is avoided. The adjusting efficiency of the arc-shaped positioning piece is improved, the adjusting process is more convenient, and the self-resetting effect can be achieved after the adjusting is completed.

[0008] As preferred, the clamping sleeve comprises an intermediate slot through which the arc-shaped positioning piece passes, the clamping sleeve comprises an adjusting portion arranged above the intermediate slot and a clamping portion arranged below the intermediate slot, the arc-shaped positioning piece comprises a variable diameter section where the positioning teeth are arranged, the variable diameter section comprises a wide end close to the supporting rod and a narrow end away from the supporting rod, and the width of the variable diameter section gradually increases from the narrow end to the wide end. The clamping sleeve comprises the adjusting portion and the clamping portion, and the adjusting portion and the clamping portion are arranged on the upper and lower sides of the intermediate slot respectively, and the arc-shaped positioning piece can pass through the intermediate slot, the region of the arc-shaped positioning piece where the positioning teeth are arranged is arranged as a variable diameter section, and the thickness of the variable diameter section is not the same at different positions. The variable diameter section comprises the wide end and the narrow end, and the size of the variable diameter section gradually increases in the direction from the narrow end to the wide end, forming a "curved knife" structure. When the arc-shaped positioning piece passes through the through slot, the lower side of the arc-shaped positioning piece abuts against the bottom of the through slot due to the action of gravity. Since the clamping sleeve can slide on the column body, the position of the intermediate slot relative to the arc-shaped positioning piece can be changed, so that the side above the intermediate slot (the adjusting portion) can abut against the upper side of the arc-shaped positioning piece. Since the lower side of the arc-shaped positioning piece abuts against the bottom of the through slot, and the upper side of the arc-shaped positioning piece is abutted by the intermediate slot, and the width of the arc-shaped positioning piece is not the same, the arc-shaped positioning piece cannot be displaced without changing the size between the upper side of the intermediate slot and the bottom of the through slot. When the clamping sleeve slides on the column body, the relative position of the intermediate slot changes. When the intermediate slot is displaced upward, the gap between the upper side of the intermediate slot and the bottom of the through slot is enlarged, so that the arc-shaped positioning piece can conduct the intermediate slot in the depressed state of the supporting rod, and is clamped in the limit position. Therefore, based on the above structure, the worker can control the extension length of the arc-shaped positioning piece that can pass through the intermediate slot by controlling the displacement of the clamping sleeve, avoiding the need for the worker to operate the arc-shaped positioning piece and the clamping sleeve with both hands during adjustment. After the adjustment is completed, the clamping sleeve is released, and the clamping sleeve is driven upward by the reset spring, so that the bottom of the intermediate slot is embedded in the positioning teeth, and the restraining effect of the arc-shaped positioning piece is completed.

[0009] Preferably, a prepositioning sleeve is fitted onto the locking sleeve, and a misalignment spring is connected between the prepositioning sleeve and the locking sleeve, so that the prepositioning sleeve and the locking sleeve can move synchronously or misaligned. A pre-positioning sleeve is provided on the engaging sleeve, which is separate from the engaging sleeve. The pre-positioning sleeve and the engaging sleeve can slide relative to each other without a misalignment spring. The displacement of the pre-positioning sleeve can compress the misalignment spring, thus creating relative displacement between the pre-positioning sleeve and the engaging groove. Therefore, during use, by pressing the pre-positioning sleeve against the bottom of the engaging sleeve, interference with the arc-shaped positioning piece protruding from the middle groove is avoided. After the arc-shaped positioning piece is restrained to the appropriate position by the upper side of the middle groove, the pre-positioning sleeve is released. Under the action of the misalignment spring, the pre-positioning sleeve moves upward relative to the engaging sleeve, thus constraining the arc-shaped positioning piece while the engaging sleeve remains stationary. When the pre-positioning sleeve engages with the positioning tooth, the engaging sleeve can be released. Under the action of the return spring, the engaging sleeve moves upward, and the upper part of the middle sleeve disengages from the arc-shaped positioning piece. Because the misalignment spring continuously engages the pre-positioning sleeve with the positioning tooth throughout this process, even if there is any movement between the pre-positioning sleeve and the engaging sleeve... The relative displacement also exerts a squeezing effect on the misalignment spring, further ensuring the stable connection between the pre-positioning sleeve and the positioning tooth. Then, when the engaging sleeve engages with the positioning tooth under the action of the return spring, it stops moving, completing the limiting effect on the arc-shaped positioning piece. Without the pre-positioning sleeve, during the process from releasing the engaging sleeve (the upper part of the middle groove disengaging from the arc-shaped positioning piece) to the engaging sleeve abutting against the arc-shaped positioning piece, the middle groove loses its limiting effect on the arc-shaped positioning piece. This causes the arc-shaped positioning piece to generate a section that is not... The release is within a controllable range, so when releasing the locking sleeve, one hand needs to hold the arc-shaped positioning piece to prevent it from shifting. However, when a pre-positioning sleeve is set, the pre-positioning sleeve is released first before releasing the locking sleeve. At this time, the pre-positioning sleeve and the intermediate groove both provide limiting constraints on the arc-shaped positioning piece. When the locking sleeve is released subsequently, the arc-shaped positioning piece will not move. This means that no additional support for the arc-shaped positioning piece is required during this process. It can be achieved simply by controlling the order of release between the locking sleeve and the pre-positioning sleeve, thus improving the smoothness of operation.

[0010] Preferably, the pre-positioning sleeve is provided with a positioning ring, and the engaging sleeve is provided with an engaging ring. The positioning ring abuts against the engaging ring and drives the engaging ring to press down. The outer diameter of the engaging ring is larger than that of the positioning ring. The positioning ring and the engaging ring facilitate operation by the operator. The positioning ring is located on the pre-positioning sleeve, and the engaging ring is located on the engaging sleeve. When the pre-positioning sleeve is pressed down, it can drive the engaging sleeve to move synchronously. When the operator releases the positioning ring and only presses down the engaging ring, the pre-positioning sleeve will lose its limiting constraint. Setting the outer diameter of the engaging ring to be larger than that of the positioning ring facilitates the release of the pre-positioning sleeve.

[0011] Preferably, a rotating gear is provided at the bottom of the through groove, and the rotating gear meshes with the positioning teeth. The rotating gear at the bottom of the through groove can mesh with the positioning teeth, thereby preventing the positioning teeth from getting stuck at the bottom of the through groove after the arc-shaped positioning piece loses the constraint of the intermediate groove. The rotation of the rotating gear quickly forms an engagement-disengagement effect with the positioning teeth, improving the smoothness of the arc-shaped positioning piece's movement in the through groove. Furthermore, a damping effect is provided on the rotating gear, thereby controlling the smoothness of the arc-shaped positioning piece's movement. The damping effect can be adjusted by replacing the rotating bearing of the rotating gear.

[0012] Preferably, vertical slots are provided on both sides of the through slot, the rotating gear is connected to the floating rod, and tension springs are connected to both ends of the floating rod. The ends of the floating rod and the tension springs are located within the vertical slots. In actual use, in order to allow the different diameter sections to move flexibly in the through slot, the through slot is relatively large. The arc-shaped positioning piece is prone to vertical movement in the through slot, so a floating rod is needed to maintain stable contact between the rotating gear and the positioning teeth. The end of the floating rod is located in the vertical slot, and a tension spring is also provided in the vertical slot. The tension spring pulls the end of the floating rod, so that the floating rod and its rotating gear can always be in contact with the positioning teeth. During the movement of the arc-shaped positioning piece, a stable resistance force can be maintained, ensuring the uniformity of the movement of the arc-shaped positioning piece.

[0013] Preferably, the column is provided with a chassis at its bottom, and a counterweight unit is provided inside the chassis. The chassis and the counterweight unit ensure that the weight of the column is shifted downward, making the column more stable. At the same time, the chassis provides a stable grip, reducing the shaking of the overall device.

[0014] Preferably, the saw blade mounting plate has several connecting holes, and through bolts are connected to these connecting holes. The connecting holes on the saw blade mounting plate allow the saw blade to be connected via the through bolts, thereby stably fixing the saw blade to the saw blade mounting plate.

[0015] Preferably, the support rod is provided with an outward-spreading plate, and the outward-spreading plate is provided with a rotating shaft, with the arc-shaped positioning plate rotatably connected to the rotating shaft. By providing the outward-spreading plate, the hinge point between the support rod and the arc-shaped positioning plate is located on the outside of the main body of the support rod, thereby ensuring the structural strength of the main body of the support rod, facilitating the connection between the arc-shaped positioning plate and the outward-spreading plate, and improving convenience.

[0016] The beneficial effects of this invention are as follows: (1) The orientation angle of the saw blade observation part can be adjusted by rotating the support rod, thereby improving the flexibility of the monitoring process; (2) Improved the adjustment efficiency of the arc-shaped positioning plate, made the adjustment process more convenient, and achieved self-resetting effect through the reset spring after adjustment; (3) The arc-shaped positioning piece is provided with a different diameter section, so that the extension length of the arc-shaped positioning piece through the middle groove can be controlled by controlling the displacement of the locking sleeve, thus avoiding the need for the operator to operate the arc-shaped positioning piece and the locking sleeve with both hands at the same time during the adjustment process. (4) A pre-positioning sleeve is provided. When the pre-positioning sleeve is released before the locking sleeve is released, the arc-shaped positioning piece will not move. This means that there is no need to support the arc-shaped positioning piece during this process. It can be achieved simply by controlling the order of release between the locking sleeve and the pre-positioning sleeve, which improves the smoothness of operation. (5) The rotation of the rotating gear quickly forms an engagement-disengagement effect with the positioning teeth, improving the smoothness of the arc-shaped positioning piece in the through groove. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Example 1.

[0018] Figure 2 This is a side view of the column in Example 1.

[0019] Figure 3 This is a partial structural schematic diagram of Example 2.

[0020] Figure 4 This is a side view of the column in Example 2.

[0021] Figure 5 This is a flowchart of the pressing and locking sleeve and the pre-positioning sleeve in Example 3.

[0022] Figure 6 This is a flowchart of the reset card assembly and pre-positioning sleeve in Embodiment 3.

[0023] Figure 7 This is a partial structural schematic diagram of Example 4.

[0024] Figure 8 This is a cross-sectional view of the column in Example 4.

[0025] In the picture: 1. Column body, 11. Through slot, 12. Rotating gear, 13. Vertical slot, 14. Floating rod, 15. Tension spring, 16. Chassis, 17. Paddle; 2 support rods, 21 outward-extending pieces, 22 rotating shafts; 3. Saw blade mounting plate; 4 arc-shaped positioning pieces, 41 positioning teeth, 42 different diameter sections, 421 wide end, 422 narrow end; 5. Locking sleeve, 51. Return spring, 52. Intermediate groove, 53. Adjustment part, 54. Locking part, 55. Locking ring; 6. Pre-positioning sleeve, 61. Offset spring, 62. Positioning ring. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1: like Figure 1 As shown, a saw blade inspection device includes a column 1, a support rod 2 rotatably connected to the column 1, a saw blade mounting plate 3 rotatably connected to the end of the support rod 2, an arc-shaped positioning plate 4 rotatably connected to the support rod 2, positioning teeth 41 provided on the arc-shaped positioning plate 4, a through groove 11 provided on the column 1, the arc-shaped positioning plate 4 can pass through the through groove 11, and the positioning teeth 41 can engage with the column 1. In this application, the column 1 provides the main support. The support rod 2 connected to the column 1 can rotate relative to the column 1, and the axis of rotation is perpendicular to the axis of the column 1. A saw blade mounting surface 3 is connected to the support rod 2, on which a saw blade can be mounted. Because the support rod 2 can rotate relative to the column 1, the axial angle of the saw blade mounting surface 3 can change synchronously with the movement of the support rod 2 during use. This changes the relative angle between the saw blade placed on the saw blade mounting surface 3 and the worker, allowing the worker to observe from a suitable angle. Furthermore, based on inspection needs, without repositioning the saw blade, the orientation angle of the observation area of ​​the saw blade can be adjusted by rotating the support rod 2, thereby improving... The application provides greater flexibility in the monitoring process. Furthermore, in this application, an arc-shaped positioning piece 4 is rotatably connected to the support rod 2. The arc-shaped positioning piece 4 can rotate relative to the support rod 2, and the end of the arc-shaped positioning piece 4 away from the support rod 2 is connected to the through groove 11, where a positioning tooth 41 is provided. Since the arc-shaped positioning piece 4 passes through the through groove 11, during use, the interior of the column 1 can be made hollow, or a barb that can engage with the positioning tooth 41 can be provided. The arc-shaped positioning piece 4 can be relatively fixed by engaging the column 1 with the positioning tooth 41. Due to gravity, the positioning tooth 41 on the arc-shaped positioning piece 4 will also tend to move downwards. Therefore, the positioning tooth 41 is preferably located below the arc-shaped positioning piece 4 to ensure the stability of the engagement connection.

[0028] like Figure 2As shown, in this embodiment, a lever 17 is rotatably connected to the column 1. The lever 17 is disposed above the through groove 11. The lever 17 can rotate and abut against the upper part of the arc-shaped positioning piece 4. When the lever 17 abuts against the arc-shaped positioning piece 4, the through groove 11 area of ​​the column 1 is a hollow structure, and the arc-shaped positioning piece 4 is engaged and connected to the edge position at the bottom of the through groove 11.

[0029] like Figure 1 As shown, a base 16 is provided at the bottom of the column 1, and a counterweight unit is provided inside the base 16. The base 16 at the bottom of the column 1 ensures that the gravity of the column 1 shifts downward, making the column 1 more stable. At the same time, the base 16 provides a stable grip, reducing the shaking of the entire device.

[0030] The saw blade mounting disc 3 has several connection holes, and through bolts are connected to these holes. The saw blade can be connected to the saw blade through the connection holes on the saw blade mounting disc 3, thereby stably fixing the saw blade to the saw blade mounting disc 3.

[0031] like Figure 1 As shown, the support rod 2 is provided with an outward-spreading piece 21, and a rotating shaft 22 is provided on the outward-spreading piece 21. The arc-shaped positioning piece 4 is rotatably connected to the rotating shaft 22. By providing the outward-spreading piece 21, the hinge point between the support rod 2 and the arc-shaped positioning piece 4 is located on the outside of the main body of the support rod 2, thereby ensuring the structural strength of the main body of the support rod 2, facilitating the connection between the arc-shaped positioning piece 4 and the outward-spreading piece 21, and improving convenience.

[0032] Example 2: like Figure 3 , 4 As shown, a saw blade inspection device includes a column 1, a support rod 2 rotatably connected to the column 1, a saw blade mounting plate 3 rotatably connected to the end of the support rod 2, an arc-shaped positioning plate 4 rotatably connected to the support rod 2, the arc-shaped positioning plate 4 being provided with positioning teeth 41, and a through groove 11 provided on the column 1, through which the arc-shaped positioning plate 4 can pass, and the positioning teeth 41 can engage with the column 1. A locking sleeve 5 is sleeved on the column 1, and a return spring 51 is connected to the bottom of the locking sleeve 5. When the return spring 51 drives the locking sleeve 5 to rise, the locking sleeve 5 engages with the positioning teeth 41.

[0033] The engaging sleeve 5 is provided on the column 1. Since it is sleeved on the column 1, the engaging sleeve 5 has a ring structure and a relatively thin wall thickness. Because the engaging sleeve 5 is sleeved on the column 1, it can move up and down relative to the column 1. When the edge of the engaging sleeve 5 moves to the through groove 11, it can engage with the positioning teeth 41 on the arc-shaped positioning piece 4 extending from both sides of the through groove 11, thereby completing the limiting effect of the arc-shaped positioning teeth 41. Furthermore, a return spring 51 is provided on the locking sleeve 5. One end of the return spring 51 is connected to the locking sleeve 5, and the other end is connected to the column 1. This allows the return spring 51 to be compressed during the downward movement of the locking sleeve 5, separating the locking sleeve 5 from the through groove 11. This allows the arc-shaped positioning piece 4 to move freely within the through groove 11. After reaching the appropriate position, the operator releases the locking sleeve 5. Driven by the return spring 51, the locking sleeve 5 quickly moves upward, engaging with the positioning teeth 41 on the arc-shaped positioning piece 4. This provides a limiting constraint on the arc-shaped positioning piece 4, preventing it from moving within the through groove 11. Even after the operator releases the sleeve, the elasticity of the return spring 51 ensures that the locking sleeve 5 remains engaged with the positioning teeth 41, preventing relative movement of the arc-shaped positioning piece 4. This improves the adjustment efficiency of the arc-shaped positioning piece 4, making the adjustment process more convenient. After adjustment, the return spring 51 enables a self-resetting effect.

[0034] like Figure 3As shown, the locking sleeve 5 includes a central groove 52, through which the arc-shaped positioning piece 4 passes. The locking sleeve 5 includes an adjustment part 53 disposed above the central groove 52 and a locking part 54 disposed below the central groove 52. The arc-shaped positioning piece 4 includes a different diameter section 42 disposed corresponding to the positioning teeth 41. The different diameter section 42 includes a wide end 421 near the support rod 2 and a narrow end 422 away from the support rod 2. The width of the different diameter section 42 gradually increases from the narrow end 422 toward the wide end 421. The locking sleeve 5 includes an adjusting part 53 and a locking part 54, which are respectively disposed on the upper and lower sides of the intermediate groove 52. The arc-shaped positioning piece 4 can pass through the intermediate groove 52. The area of ​​the arc-shaped positioning piece 4 with positioning teeth 41 is configured as a non-circular structure called a non-circular section 42. The thickness of the non-circular section 42 is not the same at different points. The non-circular section 42 includes a narrow end 422 and a wide end 421. The size of the non-circular section 42 does not gradually increase from the narrow end 422 to the wide end 421, forming a "bend". The "knife"-shaped structure, when the arc-shaped positioning piece 4 passes through the through groove 11, due to the force of gravity, the lower part of the arc-shaped positioning piece 4 abuts against the bottom of the through groove 11. Since the locking sleeve 5 can slide on the column 1, the position of the middle groove 52 relative to the arc-shaped positioning piece 4 can be changed, so that the upper side of the middle groove 52 (adjustment part 53) can abut against the upper side of the arc-shaped positioning piece 4. Since the lower part of the arc-shaped positioning piece 4 abuts against the bottom of the through groove 11, and the upper part of the arc-shaped positioning piece 4 abuts against the bottom of the through groove 11, the upper part of the arc-shaped positioning piece 4... Because the width of the arc-shaped positioning piece 4 is not the same, it cannot move without changing the size between the top of the middle groove 52 and the bottom of the through groove 11. When the locking sleeve 5 slides on the column 1, the relative position of the middle groove 52 changes. When the middle groove 52 moves upward, the gap between the top of the middle groove 52 and the bottom of the through groove 11 widens. Thus, under the downward pressure of the support rod 2, the arc-shaped positioning piece 4 will transmit the middle groove 52 and be locked at the limit position. Therefore, based on the above structure, the operator can control the extension length of the arc-shaped positioning piece 4 through the middle groove 52 by controlling the displacement of the locking sleeve 5. This avoids the need for the operator to operate the arc-shaped positioning piece 4 and the locking sleeve 5 with both hands at the same time during the adjustment process. After the adjustment is completed, the locking sleeve 5 is released. Under the action of the return spring 51, the locking sleeve 5 springs upward, so that the bottom of the middle groove 52 is embedded in the positioning tooth 41, thus completing the constraint effect on the arc-shaped positioning piece 4.

[0035] Example 3: like Figure 5 , 6As shown, a saw blade inspection device includes a column 1, a support rod 2 rotatably connected to the column 1, a saw blade mounting plate 3 rotatably connected to the end of the support rod 2, an arc-shaped positioning plate 4 rotatably connected to the support rod 2, the arc-shaped positioning plate 4 being provided with positioning teeth 41, and a through groove 11 provided on the column 1, through which the arc-shaped positioning plate 4 can pass, and the positioning teeth 41 can engage with the column 1. A locking sleeve 5 is sleeved on the column 1, and a return spring 51 is connected to the bottom of the locking sleeve 5. When the return spring 51 drives the locking sleeve 5 to rise, the locking sleeve 5 engages with the positioning teeth 41. The engaging sleeve 5 includes a central groove 52 through which an arc-shaped positioning piece 4 passes. The engaging sleeve 5 includes an adjustment part 53 positioned above the central groove 52 and an engaging part 54 positioned below the central groove 52. The arc-shaped positioning piece 4 includes a different-diameter section 42 corresponding to the positioning teeth 41. The different-diameter section 42 includes a wide end 421 near the support rod 2 and a narrow end 422 away from the support rod 2. The width of the different-diameter section 42 gradually increases from the narrow end 422 towards the wide end 421. A pre-positioning sleeve 6 is fitted onto the engaging sleeve 5. A misalignment spring 61 connects the pre-positioning sleeve 6 and the engaging sleeve 5, allowing the pre-positioning sleeve 6 and the engaging sleeve 5 to move synchronously or misaligned.

[0036] A pre-positioning sleeve 6 is provided on the engaging sleeve 5. The pre-positioning sleeve 6 and the engaging sleeve 5 are separately configured, allowing for relative sliding between them. No misalignment spring 61 is provided between the pre-positioning sleeve 6 and the engaging sleeve 5. The displacement of the pre-positioning sleeve 6 can compress the misalignment spring 61, thereby creating relative displacement between the pre-positioning sleeve 6 and the engaging groove. Therefore, during use, by pressing the pre-positioning sleeve 6 against the bottom of the engaging sleeve 5, interference between the pre-positioning sleeve 6 and the arc-shaped positioning piece 4 protruding from the intermediate groove 52 is avoided. Subsequently, the arc-shaped positioning piece 4 passes through the intermediate groove... After the upper side abuts and is constrained to the appropriate position, the prepositioning sleeve 6 is released. Under the action of the misalignment spring 61, the prepositioning sleeve 6 moves upward relative to the engaging sleeve 5, thereby constraining the arc-shaped positioning piece 4 while the engaging sleeve 5 remains fixed. After the prepositioning sleeve 6 engages with the positioning tooth 41, the engaging sleeve 5 can be released. Under the action of the return spring 51, the engaging sleeve 5 moves upward, and at this time, the upper part of the middle sleeve disengages from the arc-shaped positioning piece 4. Since the misalignment spring 61 can always drive the prepositioning sleeve 6 to engage with the positioning tooth 41 during this process, even if there is a gap between the prepositioning sleeve 6 and the engaging sleeve 5... The relative displacement also exerts a squeezing effect on the misalignment spring 61, thereby further ensuring the stable connection between the prepositioning sleeve 6 and the positioning tooth 41. Subsequently, when the engaging sleeve 5 engages with the positioning tooth 41 under the action of the return spring 51, it stops moving, completing the limiting effect on the arc-shaped positioning piece 4. When the prepositioning sleeve 6 is not set, during the process from the release of the engaging sleeve 5 (the upper part of the intermediate groove 52 disengages from the arc-shaped positioning piece 4) to the engagement of the engaging sleeve 5 and the arc-shaped positioning piece 4, the intermediate groove 52 will lose its limiting effect on the arc-shaped positioning piece 4, thus causing the arc-shaped positioning piece 4 to produce [something] during this process. Because the release of the locking sleeve 5 is not entirely within a controllable range, one hand needs to hold the arc-shaped positioning piece 4 when releasing the locking sleeve 5 to prevent displacement. However, with the pre-positioning sleeve 6 in place, the pre-positioning sleeve 6 is released before releasing the locking sleeve 5. At this time, both the pre-positioning sleeve 6 and the intermediate groove 52 provide limiting constraints on the arc-shaped positioning piece 4. Subsequently, when the locking sleeve 5 is released, the arc-shaped positioning piece 4 will not move. This eliminates the need for additional support of the arc-shaped positioning piece 4 during the process, and can be achieved simply by controlling the release order between the locking sleeve 5 and the pre-positioning sleeve 6, improving the smoothness of operation. Furthermore, during the pressing process, the locking sleeve 5 can be pressed down first to keep the pre-positioning sleeve 6 in contact with the arc-shaped positioning piece 4, thus preventing displacement of the arc-shaped positioning piece 4. Then, after the intermediate groove 52 abuts against and limits the arc-shaped positioning piece 4, the pre-positioning sleeve 6 can be pressed down, ensuring that the arc-shaped positioning piece 4 is subject to limiting constraints at all times.

[0037] like Figure 5 , 6As shown, a positioning ring 62 is provided on the pre-positioning sleeve 6, and a locking ring 55 is provided on the locking sleeve 5. The positioning ring 62 can abut against the locking ring 55 and drive the locking ring 55 to press down. The outer diameter of the locking ring 55 is larger than the outer diameter of the positioning ring 62. The positioning ring 62 and the locking ring 55 facilitate the operation and setting by the operator. The positioning ring 62 is set on the pre-positioning sleeve 6, and the locking ring 55 is set on the locking sleeve 5. When the pre-positioning sleeve 6 is pressed down, it can drive the locking sleeve 5 to move synchronously. When the operator releases the positioning ring 62 and only the locking ring 55 is pressed down, the pre-positioning sleeve 6 will lose its limiting constraint. The outer diameter of the locking ring 55 is set to be larger than the outer diameter of the positioning ring 62, so as to facilitate the release of the pre-positioning sleeve 6.

[0038] Example 4: like Figure 7 , 8 As shown, a saw blade inspection device includes a column 1, a support rod 2 rotatably connected to the column 1, a saw blade mounting plate 3 rotatably connected to the end of the support rod 2, an arc-shaped positioning plate 4 rotatably connected to the support rod 2, the arc-shaped positioning plate 4 being provided with positioning teeth 41, and a through groove 11 provided on the column 1, through which the arc-shaped positioning plate 4 can pass, and the positioning teeth 41 can engage with the column 1. A locking sleeve 5 is sleeved on the column 1, and a return spring 51 is connected to the bottom of the locking sleeve 5. When the return spring 51 drives the locking sleeve 5 to rise, the locking sleeve 5 engages with the positioning teeth 41. The engaging sleeve 5 includes a central groove 52 through which an arc-shaped positioning piece 4 passes. The engaging sleeve 5 includes an adjustment part 53 positioned above the central groove 52 and an engaging part 54 positioned below the central groove 52. The arc-shaped positioning piece 4 includes a different-diameter section 42 corresponding to the positioning teeth 41. The different-diameter section 42 includes a wide end 421 near the support rod 2 and a narrow end 422 away from the support rod 2. The width of the different-diameter section 42 gradually increases from the narrow end 422 towards the wide end 421. A pre-positioning sleeve 6 is fitted onto the engaging sleeve 5. A misalignment spring 61 connects the pre-positioning sleeve 6 and the engaging sleeve 5, allowing the pre-positioning sleeve 6 and the engaging sleeve 5 to move synchronously or misaligned. A positioning ring 62 is provided on the pre-positioning sleeve 6, and a locking ring 55 is provided on the locking sleeve 5. The positioning ring 62 can abut against the locking ring 55 and drive the locking ring 55 to press down. The outer diameter of the locking ring 55 is larger than the outer diameter of the positioning ring 62. A rotating gear 12 is provided at the bottom of the through groove 11, and the rotating gear 12 meshes with the positioning gear 41. Vertical slots 13 are provided on both sides of the through groove 11. The rotating gear 12 is connected to the floating rod 14, and tension springs 15 are connected to both ends of the floating rod 14. The ends of the floating rod 14 and the tension springs 15 are set in the vertical slots 13.

[0039] The rotating gear 12 provided at the bottom of the through groove 11 can mesh with the positioning tooth 41, thereby preventing the positioning tooth 41 from getting stuck at the bottom of the through groove 11 after the arc-shaped positioning piece 4 loses the constraint of the intermediate groove 52. The rotation of the rotating gear 12 quickly forms a meshing-disengagement effect with the positioning tooth 41, improving the smoothness of the movement of the arc-shaped positioning piece 4 in the through groove 11. Furthermore, a damping effect is provided on the rotating gear 12, thereby controlling the smoothness of the movement of the arc-shaped positioning piece 4. The damping effect can be adjusted by replacing the rotating bearing of the rotating gear 12. In actual use, in order to allow the variable diameter section 42 to move flexibly in the through groove 11, the through groove 11 is set to a large size. The arc-shaped positioning piece 4 is prone to moving up and down in the through groove 11. Therefore, a floating rod 14 is required to maintain stable contact between the rotating gear 12 and the positioning tooth 41. The end of the floating rod 14 is located in the vertical slot 13, and a tension spring 15 is also provided in the vertical slot 13. The tension spring 15 pulls the end of the floating rod 14, so that the floating rod 14 and its rotating gear 12 can always be in contact with the positioning tooth 41. During the movement of the arc-shaped positioning piece 4, a stable resistance force can always be maintained to ensure the uniformity of the movement of the arc-shaped positioning piece 4.

[0040] In addition to the above embodiments, within the scope disclosed in the claims and specification of this invention, the technical features of this invention can be reselected and combined to form new embodiments. These can be achieved by those skilled in the art without creative effort. Therefore, these embodiments not described in detail in this invention should also be regarded as specific embodiments of this invention and within the protection scope of this invention.

Claims

1. A saw blade inspection device, characterized in that, The device includes a column, a support rod rotatably connected to the column, a saw blade mounting plate rotatably connected to the end of the support rod, an arc-shaped positioning plate rotatably connected to the support rod, the arc-shaped positioning plate being provided with positioning teeth, a through groove being provided on the column, the arc-shaped positioning plate being able to pass through the through groove, and the positioning teeth being able to engage with the column.

2. The saw blade inspection device according to claim 1, characterized in that, A locking sleeve is fitted onto the column body, and a return spring is connected to the bottom of the locking sleeve. When the return spring drives the locking sleeve to rise, the locking sleeve engages with the positioning teeth.

3. A saw blade inspection device according to claim 2, characterized in that, The engaging sleeve includes a central groove, through which the arc-shaped positioning piece passes. The engaging sleeve includes an adjustment portion disposed above the central groove and an engaging portion disposed below the central groove. The arc-shaped positioning piece includes a different diameter section corresponding to the positioning teeth. The different diameter section includes a wide end near the support rod and a narrow end away from the support rod. The width of the different diameter section gradually increases from the narrow end toward the wide end.

4. A saw blade inspection device according to claim 2, characterized in that, A prepositioning sleeve is fitted onto the locking sleeve, and a misalignment spring is connected between the prepositioning sleeve and the locking sleeve, allowing the prepositioning sleeve and the locking sleeve to move synchronously or misaligned.

5. A saw blade inspection device according to claim 4, characterized in that, The prepositioning sleeve is provided with a positioning ring, and the engaging sleeve is provided with an engaging ring. The positioning ring can abut against the engaging ring and drive the engaging ring to press down. The outer diameter of the engaging ring is larger than the outer diameter of the positioning ring.

6. A saw blade inspection device according to claim 1, characterized in that, A rotating gear is provided at the bottom of the through groove, and the rotating gear meshes with the positioning gear.

7. A saw blade inspection device according to claim 6, characterized in that, Vertical slots are provided on both sides of the through slot. The rotating gear is connected to the floating rod. Tension springs are connected to both ends of the floating rod. The ends of the floating rod and the tension springs are set in the vertical slots.

8. A saw blade inspection device according to any one of claims 1-7, characterized in that, The column is provided with a base, and a counterweight unit is provided inside the base.

9. A saw blade inspection device according to any one of claims 1-7, characterized in that, The saw blade mounting plate has several connecting holes, and through bolts are connected to the connecting holes.

10. A saw blade inspection device according to any one of claims 1-7, characterized in that, The support rod is provided with an outward-spreading plate, and the outward-spreading plate is provided with a rotating shaft. The arc-shaped positioning plate is rotatably connected to the rotating shaft.

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