A clamp for transferring a ring saw blade
By designing a clamp for transferring ring saw blades, reliable clamping and tension adjustment of ring saw blades were achieved, solving the problems of safety risks and low efficiency in existing technologies, and improving the safety and efficiency of the transfer process.
Patent Information
- Application Number
- CN202522132654.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-09
AI Technical Summary
The existing technology for transferring ring saw blades has safety risks, low efficiency, and cannot apply controllable tension during the transfer process, making manual operation inconvenient, especially in scenarios involving large saw blades or frequent replacements.
A clamp for transferring a ring saw blade was designed, including a clamping assembly and an adjustment mechanism. Through the cooperation of a stop block, a clamping block, a push plate and a push rod, radial clamping and tension adjustment of the ring saw blade are achieved. The clamping and tensioning are achieved by using a motor to drive the spindle to rotate.
It improves the safety and efficiency of circular saw blade transfer, ensures clamping stability, reduces sagging and bending caused by slack, and is suitable for automated equipment, replacing manual operation.
Smart Images
Figure CN224673903U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of machining technology, and in particular relates to a clamp for transferring ring saw blades. Background Technology
[0002] Ring saw blades are critical consumables in metal cutting, woodworking, and other fields. During replacement, maintenance, or transfer, operators must move the loosened ring saw blade from its storage location and install it onto the drive and driven wheels of the sawing machine. Currently, the industry commonly uses manual transfer: operators directly grasp the outer edge or teeth of the saw blade and move it to the target workstation. This method has the following significant drawbacks: 1. The teeth of the ring saw blade are extremely sharp, easily cutting the operator's palm when manually grasping it (especially at the junction of the tooth root and the blade body), posing a serious risk of workplace injury; 2. Manual handling relies on the operator's physical strength and experience, which is particularly inconvenient for large saw blades or frequent replacement scenarios; 3. Traditional methods only achieve physical position transfer and cannot apply controllable tension to the saw blade during the transfer process. Although some automated equipment attempts to use robotic arms to hold the saw blade, their clamping designs only achieve position grasping functions and do not integrate a tension adjustment mechanism. Therefore, there is an urgent need to develop a dedicated device that combines reliable clamping, safe transfer, and synchronous tension adjustment to completely replace high-risk manual operations and improve the efficiency and safety of ring saw blade replacement. Utility Model Content
[0003] To address the shortcomings of the prior art, this application provides a clamp for transferring ring saw blades, which is used to adjust the tension of the ring saw blades during the transfer process and improve the efficiency and safety of the transfer.
[0004] To achieve the above objectives, the present invention employs the following technology: A clamp for transferring ring saw blades, comprising: The strip plate has mounting cavities running through both sides of it. The clamping assembly includes two abutments located at both ends of the bottom surface of the strip plate, the distance between the two abutments matching the diameter of the ring saw blade; a main shaft is vertically inserted through the strip plate and located in the center of its bottom surface; a pair of push plates are provided on the bottom surface of the strip plate, oriented towards the width direction of the strip plate, the two push plates are used to move synchronously towards each other along the length direction of the strip plate as the main shaft rotates, and the distance between the two push plates and the corresponding abutments is always equal; a clamping block is provided between the push plates and the corresponding abutments, which is movable along the length direction of the strip plate, and the clamping block is connected to the corresponding push plate by a first spring; The adjustment mechanism includes two push rods located in the mounting cavity, facing the width direction of the strip plate and coaxially positioned in the middle of the two abutments. The two push rods are used to move synchronously towards each other along the width direction of the strip plate as the main shaft rotates. The far ends of the two push rods are provided with inner supports, and the distance between the two inner supports and the main shaft is always equal. The drive unit, located above the top surface of the strip plate, is used to drive the main shaft to rotate around the axis.
[0005] The beneficial effects of this utility model are as follows: 1. By setting up the abutment block and clamping block, and cooperating with the push plate and the first spring, the clamp can clamp the circular saw blade at two points in the radial direction. During the clamping process, the circular saw blade is subjected to uniform force, which helps to improve the clamping stability of the clamp. 2. By setting up the push rod and the inner support, and in conjunction with the first spring and the main shaft, the two inner supports can tension the ring saw blade during the clamping process, thereby controlling the tension. Applying uniform tension to the ring saw blade during the transfer process can reduce sagging and bending caused by slack, making the ring saw blade stable and easy to control. Attached Figure Description
[0006] Figure 1 This is a schematic diagram of the main structure of the fixture in the embodiment of this application.
[0007] Figure 2 This is a schematic diagram of the bottom surface of the strip plate in an embodiment of this application.
[0008] Figure 3 This is a cross-sectional view of the fixture in the embodiment of this application.
[0009] Figure 4 This is a schematic diagram of the structure inside the mounting cavity in an embodiment of this application.
[0010] Reference numerals: 1-strip plate, 11-mounting cavity, 12-guide rod, 13-rack, 14-guide seat, 15-mounting bracket, 16-rack bracket, 2-clamping assembly, 21-stop block, 22-spindle, 23-push plate, 24-clamping block, 25-first spring, 26-gear, 3-adjusting mechanism, 31-push rod, 32-inner support, 33-mounting plate, 34-second spring, 35-fitting plate, 36-double-center cam, 37-vertical plate, 38-roller, 4-drive unit, 41-motor, 5-locking mechanism, 51-ratchet, 52-pawl, 53-linear mechanism. Detailed Implementation
[0011] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.
[0012] This application provides a clamp for transferring a ring saw blade, such as... Figures 1-4 As shown, it includes: a strip plate 1, a clamping assembly 2, an adjustment mechanism 3, a drive unit 4, etc.
[0013] Among them, such as Figure 1 and Figure 2 As shown, the strip plate 1 has mounting cavities 11 that extend through both sides of it, and the whole is set in a rectangular frame.
[0014] like Figure 1 and Figure 2 As shown, the clamping assembly 2 includes two abutments 21 respectively located at both ends of the bottom surface of the strip plate 1. The distance between the two abutments 21 is equal to the outer diameter of the ring saw blade. A main shaft 22 is vertically inserted through the strip plate 1 and located in the center of its bottom surface. That is, the main shaft 22 is located in the center of the two abutments 21 and in the center of both sides of the strip plate 1. A pair of push plates 23 are provided on the bottom surface of the strip plate 1, which are arranged in the width direction of the strip plate 1 and perpendicular to the bottom surface of the strip plate 1. The two push plates 23 are used to move synchronously towards each other along the length direction of the strip plate 1 with the rotation of the main shaft 22, and the distance between the two push plates 23 and the corresponding abutments 21 is always equal. A clamping block 24 is provided between the push plate 23 and the corresponding abutment 21 and is arranged along the length direction of the strip plate 1. The end face of the clamping block 24 facing the corresponding abutment 21 is an arc surface adapted to the inner circular surface of the ring saw blade. The clamping block 24 and the corresponding push plate 23 are connected by a first spring 25 arranged along the length direction of the strip plate 1.
[0015] like Figures 1-4 As shown, the adjustment mechanism 3 includes two push rods 31 located in the mounting cavity 11, facing the width direction of the strip plate 1 and coaxially positioned between the two abutment blocks 21. The two push rods 31 move synchronously towards each other along the width direction of the strip plate 1 as the main shaft 22 rotates. Each push rod 31 has an inner support portion 32 at its distal end, and the distance between the two inner support portions 32 and the main shaft 22 is always equal. Figure 1 As shown, a mounting bracket 15 is provided on the top surface of the strip plate 1, and a drive unit 4 is provided above the top surface of the strip plate 1. The drive unit 41 is provided on the mounting bracket 15, and its drive end is vertically downward and coaxially connected to the main shaft 22 for driving the main shaft 22 to rotate around the axis.
[0016] When applying, such as Figure 1As shown in Figure 4, the ring saw blade to be transferred is placed flat on the storage platform. The clamp is installed on a moving platform that can move vertically. The moving platform is manipulated to move the clamp directly above the ring saw blade to be transferred, with the axis of the main shaft 22 intersecting the center of the ring saw blade. The projections of the clamping blocks 24 and the inner support 32 are both located inside the ring saw blade. Then, the clamp is manipulated to move vertically downwards until the strip plate 1 is a predetermined distance away from the ring saw blade to be transferred. At this time, the ring saw blade is located between the two abutment blocks 21. The motor 41 drives the main shaft 22 to rotate, and the two push plates 23 separate synchronously with the rotation of the main shaft 22. The first spring 25 pushes the two clamping blocks 24 to move towards the corresponding abutment blocks 21, so that the two clamping blocks 24 and the corresponding abutment blocks 21 clamp the ring saw blade at two points in the radial direction. At the same time, the two push rods 31 also move with the main shaft 22. The rotation of shaft 22 synchronously separates the two sides, causing the inner support 32 to abut against the inner side of the ring saw blade. As the main shaft 22 continues to rotate, the push plate 23 compresses the first spring 25. The first spring 25 acts on the clamping block 24, increasing the pressure of the clamping block 24 on the inner side of the ring saw blade, thereby clamping the ring saw blade through the clamping block 24 and the abutment block 21. Due to the compressibility of the first spring 25, the push plate 23 can still move towards the corresponding abutment block 21 as the main shaft 22 rotates. That is, the two push rods 31 can continue to separate as the main shaft 22 rotates, causing the two inner support parts 32 to press against the inner side of the ring saw blade, thereby achieving the tensioning and tension adjustment of the ring saw blade. After the ring saw blade is tensioned, the main shaft 22 remains fixed, thereby fixing the push plate 23 and the push rods 31. The clamp is then moved upward, and the moving platform is moved to the sawing machine for ring saw blade replacement.
[0017] By setting up the abutment block 21 and clamping block 24, and cooperating with the push plate 23 and the first spring 25, the clamp can hold the annular saw blade at two radial points. During the clamping process, the annular saw blade is subjected to uniform force, which helps to improve the clamping stability of the clamp. At the same time, by setting up the push rod 31 and the inner support part 32, and cooperating with the first spring 25 and the main shaft 22, the two inner support parts 32 can tension the annular saw blade during the clamping process, and perform tension control. Applying uniform tension to the annular saw blade during the transfer process can reduce sagging and bending caused by slack, making the shape of the annular saw blade stable. An annular saw blade with moderate tension is easier to unfold, guide and position on the saw wheel than a completely slack saw blade. A slack saw blade is prone to curling and tangling, and is difficult to control. In addition, the clamp can be integrated into an automated mobile platform, changing the traditional manual handling method, which helps to improve the efficiency and safety of annular saw blade transfer.
[0018] Preferred, such as Figure 1 and Figure 2As shown, the inner support 32 includes a vertical plate 37 vertically connected to the distal end of the push rod 31. A vertically mounted roller 38 is mounted on the outer side of the vertical plate 37 and rotates around its own axis. By having the roller 38 abut against the inner side of the ring saw blade, the tension on the ring saw blade is more uniform, and damage to the inner side of the ring saw blade can be avoided during the tensioning process.
[0019] Specifically, such as Figure 1 and Figure 2 As shown, the lower end of the main shaft 22 is located below the bottom surface of the strip plate 1 and is coaxially connected to a gear 26. A pair of guide rods 12 arranged along the length direction are mounted on the bottom surface of the strip plate 1, and the gear 26 is located between the two guide rods 12. The two ends of the push plate 23 slide through the two guide rods 12. Mounting plates 33 arranged in the width direction of the strip plate 1 slide through the guide rods 12 between the two push plates 23 and the corresponding abutment blocks 21. The mounting plates 33 are connected to the corresponding push plates 23 by a first spring 25. The clamping block 24 is located on the mounting plate 33. A pair of racks 13 arranged along the length direction are provided on the bottom surface of the strip plate 1. The gear 26 is located between the two racks 13 and meshes with the two racks 13. The distal ends of the two racks 13 are respectively connected to the corresponding push plates 23. In application, the motor 41 drives the main shaft 22 to rotate, which drives the gear 26 to rotate. The gear 26 meshes with the racks 13, thereby realizing the synchronous opposite movement of the two push plates 23. The use of gear 26 and rack 13 ensures stable operation of push plate 23, further improving the clamping stability of the fixture.
[0020] Specifically, such as Figure 2 As shown, the bottom surface of the strip plate 1 is provided with a pair of rack frames 16 arranged along its length direction, and the two racks 13 are respectively slidably engaged in the corresponding rack frames 16.
[0021] Specifically, such as Figures 1-4 As shown, guide seats 14 are provided on both sides of the bottom surface of the strip plate 1, and two push rods 31 slide through the corresponding guide seats 14 respectively; a second spring 34 is sleeved on the push rod 31, which is connected between the guide seat 14 and the inner support part 32; the opposite ends of the two push rods 31 are vertically connected to mating plates 35 arranged along the length direction of the strip plate 1; a double-center cam 36 is coaxially provided on the main shaft 22, located between the two mating plates 35. The main shaft 22 drives the double-center cam 36 to rotate, the double-center cam 36 abuts against the two mating plates 35, and resists the second spring 34 to separate the two mating plates 35, thereby driving the push rods 31 to separate, thus realizing the tensioning of the ring saw blade.
[0022] Specifically, in the clamping state, both the first spring 25 and the second spring 34 will exert a force on the spindle 22 in the opposite direction of rotation. Therefore, the clamping fixture has certain requirements for the self-locking property of the spindle 22 during the clamping process. A self-locking motor 41 can be used, and a locking mechanism 5 can be set in the strip plate 1, such as... Figure 1As shown, the locking mechanism 5 specifically includes a ratchet 51 coaxially mounted on the main shaft 22, located on the top surface of the strip plate 1. A pawl 52 is also rotatably mounted on the top surface of the strip plate 1 on one side of the main shaft 22, with its rotation axis perpendicular to the top surface of the strip plate 1. The locking end of the pawl 52 elastically abuts against the ratchet teeth of the ratchet 51. When the main shaft 22 rotates, causing the push plate 23 and the mating plate 35 to separate, the pawl 52 allows the main shaft 22 to rotate. After the annular saw blade is clamped and tensioned, when the first spring 25 and the second spring 34 apply a force to the main shaft 22 in the opposite direction, the locking end of the pawl 52 engages between the ratchet teeth of the ratchet 51, thereby locking the main shaft 22. Correspondingly, as... Figure 1 As shown, a linear mechanism 53 can be installed on the top surface of the strip plate 1. The linear mechanism 53 can be in the form of a linear cylinder, an electric push rod, etc., with its movable end facing the other end of the pawl 52. By extending and retracting to control the rotation of the pawl 52, the locking end of the pawl 52 is disengaged from the ratchet, thereby releasing the main shaft 22. Through the arrangement of the ratchet 51 and the pawl 52, and in conjunction with the first spring 25 and the second spring 34, the main shaft 22 can be effectively locked, ensuring the reliability of the clamp during clamping and transfer.
[0023] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.
Claims
1. A clamp for transferring a ring saw blade, characterized in that, include: The strip plate (1) has an installation cavity (11) that runs through both sides of it. The clamping assembly (2) includes two abutments (21) respectively located at both ends of the bottom surface of the strip plate (1), the distance between the two abutments (21) matching the diameter of the ring saw blade; a main shaft (22) located in the center of the bottom surface of the strip plate (1) is vertically inserted on the strip plate (1); a pair of push plates (23) arranged in the width direction of the strip plate (1) are provided on the bottom surface of the strip plate (1), the two push plates (23) are used to move synchronously towards each other along the length direction of the strip plate (1) with the rotation of the main shaft (22), and the distance between the two push plates (23) and the corresponding abutments (21) is always equal; a clamping block (24) is provided between the push plate (23) and the corresponding abutment (21) and moves along the length direction of the strip plate (1), the clamping block (24) and the corresponding push plate (23) are connected by a first spring (25); The adjustment mechanism (3) includes two push rods (31) located in the mounting cavity (11) facing the width direction of the strip plate (1) and coaxially located in the middle of the two abutments (21). The two push rods (31) are used to move synchronously towards each other along the width direction of the strip plate (1) with the rotation of the main shaft (22). The far ends of the two push rods (31) are provided with inner support parts (32), and the distance between the two inner support parts (32) and the main shaft (22) is always equal. The drive unit (4) is located above the top surface of the strip plate (1) and is used to drive the main shaft (22) to rotate around the axis.
2. The clamp for transferring a ring saw blade according to claim 1, characterized in that, The lower end of the main shaft (22) is located below the bottom surface of the strip plate (1) and is coaxially connected to a gear (26). A pair of guide rods (12) are mounted on the bottom surface of the strip plate (1) along its length direction. The gear (26) is located between the two guide rods (12). The two ends of the push plate (23) slide through the two guide rods (12). Mounting plates (33) are slidably mounted on the guide rods (12) between the two push plates (23) and the corresponding abutment (21). The mounting plates (33) are connected to the corresponding push plates (23) by a first spring (25). The clamping block (24) is located on the mounting plate (33).
3. A clamp for transferring a ring saw blade according to claim 2, characterized in that, The bottom surface of the strip plate (1) is provided with a pair of racks (13) arranged along its length direction. The gear (26) is located between the two racks (13) and meshes with the two racks (13). The far ends of the two racks (13) are respectively connected to the corresponding push plates (23).
4. A clamp for transferring a ring saw blade according to claim 3, characterized in that, Guide seats (14) are provided on both sides of the bottom surface of the strip plate (1), and two push rods (31) slide through the corresponding guide seats (14) respectively; a second spring (34) is sleeved on the push rod (31), which is connected between the guide seat (14) and the inner support (32); the opposite ends of the two push rods (31) are vertically connected to the mating plates (35) arranged along the length direction of the strip plate (1); a double-center cam (36) is coaxially provided on the main shaft (22) between the two mating plates (35) for pushing the mating plates (35).
5. A clamp for transferring a ring saw blade according to claim 4, characterized in that, The clamp also includes a locking mechanism (5) located on the top surface of the strip plate (1) for fixing or releasing the spindle (22).