A saw blade detection fixing clamp convenient to operate

Abstract

The utility model relates to saw blade processing technical field, concretely relates to a kind of saw blade detection fixed clamp of convenient operation, it includes: one end sealed cylinder, elastic circular slider assembly is slidably connected in the cylinder, the outer end of the elastic circular slider assembly is connected with conical boss, it is suitable for guiding the center of saw blade to the center of cylinder movement, the sealing end of the cylinder is concentrically connected with spline sleeve;The outer end of the conical boss is connected with screw rod, transition pressing plate assembly of radially movable dismounting is set on the screw rod, the outer end of the screw rod is screw-connected with spiral locking assembly, transition pressing plate assembly can be driven to move to conical boss, the radial maximum dimension of the spiral locking assembly is less than the center hole size of saw blade, the large diameter end size of the conical boss is greater than the inner hole size of saw blade;It further includes the anti-loosening assembly of preventing spiral locking assembly reverse rotation.The utility model structure is reasonable, the versatility of enhanced use is strengthened, and the convenience of detection is improved.

Description

Technical Field

[0001] This utility model relates to the field of saw blade processing technology, and in particular to a saw blade inspection and fixing fixture that is easy to operate. Background Technology

[0002] The dynamic balance test of the saw blade needs to be performed by clamping and testing with a fixture. The fixture includes a fixed step shaft and a pressure cap. After the saw blade is fitted onto the outer circle of the fixed step shaft, the pressure cap is screwed to the fixed step shaft to lock and fix the saw blade axially. In order to ensure the accuracy of the test, the saw blade and the fixed step shaft need to have a high degree of concentricity. Therefore, the fitting accuracy between the fixed step shaft and the inner hole of the saw blade is extremely high.

[0003] Regarding the aforementioned technologies, the inventors discovered that the fixed stepped shaft, due to its fixed outer diameter, cannot accurately clamp and inspect saw blades of different specifications, resulting in reduced versatility. Furthermore, when inspecting multiple saw blades one by one, after inspecting each saw blade, the pressure cap must be completely removed from the fixed stepped shaft before the inspected saw blade can be removed, which significantly reduces the convenience of inspection. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a saw blade inspection and fixing fixture that is easy to operate, enhances its versatility, and improves the convenience of inspection.

[0005] To solve the above technical problems, the present invention provides a convenient saw blade detection and fixing fixture, comprising: a cylinder sealed at one end, an elastic circular slider assembly slidably connected inside the cylinder, a conical boss connected to the outer end of the elastic circular slider assembly, suitable for guiding the center of the saw blade to move toward the center of the cylinder, and a spline sleeve concentrically connected to the sealed end of the cylinder. The outer end of the conical boss is connected to a screw rod, and a transition pressure plate assembly that can be radially moved and disassembled is sleeved on the screw rod. The outer end of the screw rod is helically connected to a helical locking assembly that can drive the transition pressure plate assembly to move toward the conical boss. The maximum radial dimension of the helical locking assembly is smaller than the center hole size of the saw blade, and the large diameter end size of the conical boss is larger than the inner hole size of the saw blade. It also includes an anti-loosening component to prevent the spiral locking assembly from rotating in the opposite direction.

[0006] By adopting the above technical solution, when using it, first, the spline sleeve is fitted onto the main shaft of the dynamic balancing testing equipment. Since the maximum radial dimension of the spiral locking assembly is smaller than the size of the central hole of the saw blade, the saw blade to be tested can be passed through the spiral locking assembly and fitted onto the outside of the conical boss. Then, the transition pressure plate assembly is moved radially and fitted onto the screw. The spiral locking assembly is rotated to drive the transition pressure plate assembly to move axially. The transition pressure plate assembly will apply an axial force to the saw blade, causing the saw blade to move axially synchronously. Because the large diameter of the tapered boss is larger than the inner diameter of the saw blade, the edge of the saw blade's inner hole contacts the tapered surface of the tapered boss, thus keeping the center line of the saw blade's inner hole concentric with the cylinder's axis. Under continuous axial force, the saw blade pushes the elastic circular slider assembly to slide and retract along the inner wall of the cylinder, while the saw blade continues to move axially, eventually contacting and connecting with the end of the cylinder. At this point, the helical locking assembly achieves axial locking and fixation of the saw blade through the transition pressure plate assembly. By setting the tapered boss, saw blades of different specifications can be guided to be concentric with the cylinder, effectively expanding the versatility of the fixture. At the same time, the transition pressure plate assembly can be installed and removed radially without completely removing the helical locking assembly from the screw, greatly improving operational convenience. In addition, the anti-loosening component can prevent the helical locking assembly from rotating in the opposite direction, achieving an anti-loosening effect and further improving the stability of the fixed fixture.

[0007] In a preferred embodiment, the present invention can be further configured as follows: the elastic circular slider assembly includes a circular slider body and a first spring, the circular slider body is located in the inner hole of the cylinder and the two are slidably connected, one end of the first spring is in contact with the circular slider body and the other end is in contact with the inner wall of the sealing end inside the cylinder, and the end of the circular slider body away from the first spring is concentrically connected with the conical boss; it also includes a first axial limiting member to prevent the circular slider body from sliding out of the cylinder.

[0008] By adopting the above technical solution, when the saw blade is subjected to axial compressive force from the transition pressure plate assembly, it drives the conical boss and the circular slider to move towards the inner hole of the cylinder. During this process, the first spring is compressed and contracted by the conical boss. The first axial limiting member prevents the circular slider from sliding out of the cylinder.

[0009] In a preferred embodiment, the present invention can be further configured as follows: the number of the first axial limiting members is two and they are symmetrically arranged. The first axial limiting member includes a first waist-shaped hole disposed on the outer circle of the cylinder. A limiting circular block is inserted into the first waist-shaped hole, and one end of the limiting circular block is connected to the outer circle of the circular slider.

[0010] By adopting the above technical solution, the limiting block slides within the first oblong hole, thereby preventing the circular slider from sliding out of the cylinder and achieving the purpose of limiting.

[0011] In a preferred embodiment, the present invention can be further configured as follows: the transition pressure plate assembly includes an inner pressure plate and an outer pressure plate, one end of the inner pressure plate is provided with a clearance cavity, and the other end is provided with an opening groove one; one end of the outer pressure plate is provided with a circular cavity sleeved on the outside of the inner pressure plate, and the other end is provided with an opening groove two corresponding to the opening groove one.

[0012] By adopting the above technical solution, and by setting a clearance cavity on the inner pressure plate, interference between the inner pressure plate and the small-diameter end of the tapered boss is avoided. By setting an opening slot one on the inner pressure plate and an opening slot two on the outer pressure plate, the inner and outer pressure plates can be moved radially and fitted onto the screw, thus improving the convenience of installation and disassembly.

[0013] In a preferred embodiment, the present invention can be further configured as follows: the anti-loosening component includes a plurality of second springs arranged in a ring array and located in a circular cavity, one end of the second spring is connected to the end of the circular cavity, the other end is in contact with the inner pressure plate, and also includes a second axial limiting member, which is suitable for preventing the inner pressure plate from detaching from the circular cavity; The second axial limiting member includes a second oblong hole disposed on the outer pressure plate and communicating with the circular cavity. A second limiting block is provided in the second oblong hole, and the second limiting block is connected to the inner pressure plate.

[0014] By adopting the above technical solution, several second springs are arranged in a ring array, with one end connected to the end of the circular cavity and the other end in contact with the inner pressure plate. The elastic force generated after contraction can drive the outer pressure plate and the spiral locking assembly to form a certain elastic force, thereby preventing the spiral locking assembly from rotating in the opposite direction. At the same time, the sliding fit of the limiting block two in the second waist-shaped hole can prevent the inner pressure plate from disengaging from the circular cavity, thus realizing the limiting function.

[0015] In a preferred embodiment, the present invention can be further configured such that the spiral locking assembly includes a locking nut and a U-shaped rod, the locking nut being spirally connected to the screw rod, and the two ends of the U-shaped rod being connected to the ends of the locking nut.

[0016] By adopting the above technical solution, rotating the locking nut can drive the transition pressure plate assembly to move axially, thereby applying axial driving force to the saw blade through the transition pressure plate assembly to achieve locking; the U-shaped rod is connected to one end of the locking nut, which makes it easy to manually rotate the U-shaped rod to drive the locking nut to rotate, effectively improving the ease of operation.

[0017] In summary, this utility model has at least one of the following beneficial technical effects: 1. The tapered boss can guide saw blades of different specifications to be concentric with the cylinder, greatly expanding the applicability of the fixture and improving its versatility.

[0018] 2. The transition pressure plate assembly can be moved radially for loading and unloading without completely removing the screw locking assembly, significantly simplifying the operation process and improving convenience.

[0019] 3. The anti-loosening component prevents the spiral locking component from rotating in the opposite direction, avoids the saw blade from loosening, further enhances the stability of the fixture during use, and ensures the smooth progress of dynamic balance testing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of a preferred embodiment of a saw blade detection and fixing fixture that is easy to operate.

[0021] Figure 2 yes Figure 1 Sectional view along line AA.

[0022] Figure 3 yes Figure 1 A schematic diagram of the connection between the intermediate transition pressure plate assembly and the anti-loosening assembly.

[0023] In the diagram: 1. Cylinder; 20. Elastic circular slider assembly; 3. Conical boss; 4. Spline sleeve; 5. Screw; 60. Transition pressure plate assembly; 70. Helical locking assembly; 80. Anti-loosening assembly; 21. Circular slider body; 22. First spring; 23. First axial limiting component; 231. First oblong hole; 232. Limiting circular block one; 61. Inner pressure plate; 62. Outer pressure plate; 63. Relief cavity; 64. Opening groove one; 65. Circular cavity; 66. Opening groove two; 71. Locking nut; 72. U-shaped rod; 81. Second spring; 82. Second axial limiting component; 821. Second oblong hole; 822. Limiting round block two. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0026] Reference Figures 1-3 This utility model discloses a convenient saw blade testing and fixing fixture, comprising: a cylindrical tube 1 sealed at one end, an elastic circular slider assembly 20 slidably connected inside the cylindrical tube 1, a conical boss 3 connected to the outer end of the elastic circular slider assembly 20, suitable for guiding the center of the saw blade to move towards the center of the cylindrical tube 1, and a splined sleeve 4 concentrically connected to the sealed end of the cylindrical tube 1; the splined sleeve 4 is fitted onto the spindle of the dynamic balancing testing equipment, realizing the installation and connection of the fixing fixture of this application with the dynamic balancing testing equipment.

[0027] The outer end of the tapered boss 3 is connected to a screw 5. A transition pressure plate assembly 60 that can be radially moved and disassembled is sleeved on the screw 5. The outer end of the screw 5 is screwed to a spiral locking assembly 70 that can drive the transition pressure plate assembly 60 to move toward the tapered boss 3. The maximum radial dimension of the spiral locking assembly 70 is smaller than the center hole size of the saw blade, and the large diameter end size of the tapered boss 3 is larger than the inner hole size of the saw blade.

[0028] The transition pressure plate assembly 60 includes an inner pressure plate 61 and an outer pressure plate 62. One end of the inner pressure plate 61 has a clearance cavity 63, and the other end has an opening slot 64. One end of the outer pressure plate 62 has a circular cavity 65 fitted onto the outside of the inner pressure plate 61, and the other end has an opening slot 66 corresponding to the opening slot 64. By providing the clearance cavity 63 on the inner pressure plate 61, interference between the inner pressure plate 61 and the small-diameter end of the tapered boss 3 is avoided. The opening slot 64 on the inner pressure plate 61 and the opening slot 66 on the outer pressure plate 62 facilitate radial movement of the inner pressure plate 61 and the outer pressure plate 62 onto the screw 5, improving the ease of installation and disassembly.

[0029] It also includes an anti-loosening component 80 to prevent the spiral locking assembly 70 from rotating in the opposite direction. The anti-loosening component 80 includes several second springs 81 arranged in a ring array and located in the circular cavity 65. One end of the second spring 81 is connected to the end of the circular cavity 65, and the other end is in contact with the inner pressure plate 61. It also includes a second axial limiting member 82, which is adapted to prevent the inner pressure plate 61 from disengaging from the circular cavity 65. The second axial limiting member 82 includes a second oblong hole 821 disposed on the outer pressure plate 62 and communicating with the circular cavity 65. A limiting block 822 is provided in the second oblong hole 821, and the limiting block 822 is connected to the inner pressure plate 61. Several second springs 81 are arranged in a ring array, with one end connected to the end of the circular cavity 65 and the other end abutting against the inner pressure plate 61. The elastic force generated after contraction can drive the outer pressure plate 62 and the spiral locking assembly 70 to form a certain elastic force, thereby preventing the spiral locking assembly 70 from rotating in the opposite direction. At the same time, the sliding engagement of the limiting block 822 in the second oblong hole 821 can prevent the inner pressure plate 61 from disengaging from the circular cavity 65, thus realizing the limiting function.

[0030] The spiral locking assembly 70 includes a locking nut 71 and a U-shaped rod 72. The locking nut 71 is spirally connected to the screw 5, and both ends of the U-shaped rod 72 are connected to the ends of the locking nut 71. Rotating the locking nut 71 drives the transition pressure plate assembly 60 to move axially, thereby applying an axial driving force to the saw blade through the transition pressure plate assembly 60 to achieve locking. The U-shaped rod 72 is connected to one end of the locking nut 71, which facilitates manual rotation of the U-shaped rod 72 to drive the locking nut 71 to rotate, effectively improving the ease of operation.

[0031] The elastic circular slider assembly 20 includes a circular slider body 21 and a first spring 22. The circular slider body 21 is located in the inner hole of the cylinder 1 and the two are slidably connected. One end of the first spring 22 is in contact with the circular slider body 21, and the other end is in contact with the inner wall of the sealing end inside the cylinder 1. The end of the circular slider body 21 away from the first spring 22 is concentrically connected to the aforementioned conical boss 3. It also includes a first axial limiting member 23 to prevent the circular slider body 21 from sliding out of the cylinder 1. When the saw blade is subjected to axial compressive force from the transition pressure plate assembly 60, it drives the conical boss 3 and the circular slider body 21 to move towards the inner hole of the cylinder 1. During this process, the first spring 22 is compressed and contracted by the conical boss 3. The first axial limiting member 23 prevents the circular slider body 21 from sliding out of the cylinder 1.

[0032] The first axial limiting member 23 is two in number and symmetrically arranged. The first axial limiting member 23 includes a first oblong hole 231 disposed on the outer circle of the cylinder 1. A limiting block 232 passes through the first oblong hole 231. One end of the limiting block 232 is connected to the outer circle of the circular slider body 21. The limiting block 232 slides within the first oblong hole 231, thereby preventing the circular slider body 21 from sliding out of the cylinder 1, thus achieving the purpose of limiting.

[0033] The implementation principle of this embodiment is as follows: In use, the spline sleeve 4 is first fitted onto the spindle of the dynamic balancing testing equipment. Since the maximum radial dimension of the spiral locking assembly 70 is smaller than the center hole size of the saw blade, the saw blade to be tested can be passed through the spiral locking assembly 70 and fitted onto the outside of the conical boss 3. Then, the transition pressure plate assembly 60 is moved radially and fitted onto the screw 5. The spiral locking assembly 70 is rotated to drive the transition pressure plate assembly 60 to move axially. The transition pressure plate assembly 60 will apply an axial force to the saw blade, causing the saw blade to move axially synchronously. Because the large diameter of the tapered boss 3 is larger than the inner diameter of the saw blade, the edge of the inner diameter of the saw blade will contact the tapered surface of the tapered boss 3, thus keeping the center line of the inner diameter of the saw blade concentric with the axis of the cylinder 1. Under the continuous axial force, the saw blade will push the elastic circular slider assembly 20 to slide and retract along the inner wall of the cylinder 1, while the saw blade continues to move axially and eventually abuts against the end of the cylinder 1. At this time, the spiral locking assembly 70 achieves axial locking and fixing of the saw blade through the transition pressure plate assembly 60. By setting the tapered boss 3, saw blades of different specifications can be guided to be concentric with the cylinder 1, effectively expanding the versatility of the fixture. At the same time, the transition pressure plate assembly 60 can be moved radially to complete installation and disassembly without completely removing the spiral locking assembly 70 from the screw 5, greatly improving the convenience of operation. In addition, the anti-loosening assembly 80 can prevent the spiral locking assembly 70 from rotating in the opposite direction, achieving an anti-loosening effect and further improving the stability of the fixture.

[0034] 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 using the content of this utility model specification, 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 convenient saw blade detection and fixing fixture, characterized in that, include: A cylindrical tube (1) sealed at one end, an elastic circular slider assembly (20) is slidably connected inside the cylindrical tube (1), and a conical boss (3) is connected to the outer end of the elastic circular slider assembly (20), which is suitable for guiding the center of the saw blade to move towards the center of the cylindrical tube (1). A spline sleeve (4) is concentrically connected to the sealed end of the cylindrical tube (1). The outer end of the conical boss (3) is connected to a screw (5), and a transition pressure plate assembly (60) that can be radially moved and disassembled is sleeved on the screw (5). The outer end of the screw (5) is spirally connected to a spiral locking assembly (70) that can drive the transition pressure plate assembly (60) to move toward the conical boss (3). The maximum radial dimension of the spiral locking assembly (70) is smaller than the center hole size of the saw blade, and the large diameter end size of the conical boss (3) is larger than the inner hole size of the saw blade. It also includes an anti-loosening component (80) to prevent the spiral locking assembly (70) from rotating in the opposite direction.

2. The easy-to-operate saw blade detection and fixing fixture according to claim 1, characterized in that, The elastic circular slider assembly (20) includes a circular slider body (21) and a first spring (22). The circular slider body (21) is located in the inner hole of the cylinder (1) and the two are slidably connected. One end of the first spring (22) is in contact with the circular slider body (21), and the other end is in contact with the inner wall of the sealing end inside the cylinder (1). The conical boss (3) is concentrically connected to the end of the circular slider body (21) away from the first spring (22). It also includes a first axial limiting member (23) to prevent the circular slider body (21) from sliding out of the cylinder (1).

3. The easy-to-operate saw blade detection and fixing fixture according to claim 2, characterized in that, The first axial limiting member (23) is two in number and is symmetrically arranged. The first axial limiting member (23) includes a first waist-shaped hole (231) disposed on the outer circle of the cylinder (1). A limiting block (232) is inserted in the first waist-shaped hole (231). One end of the limiting block (232) is connected to the outer circle of the circular slider (21).

4. The easy-to-operate saw blade detection and fixing fixture according to claim 1, characterized in that, The transition pressure plate assembly (60) includes an inner pressure plate (61) and an outer pressure plate (62). One end of the inner pressure plate (61) is provided with a clearance cavity (63) and the other end is provided with an opening groove (64). One end of the outer pressure plate (62) is provided with a circular cavity (65) sleeved on the outside of the inner pressure plate (61) and the other end is provided with an opening groove (66) corresponding to the opening groove (64).

5. The easy-to-operate saw blade detection and fixing fixture according to claim 4, characterized in that, The anti-loosening component (80) includes several second springs (81) arranged in a ring array and located in a circular cavity (65). One end of the second spring (81) is connected to the end of the circular cavity (65), and the other end is in contact with the inner pressure plate (61). It also includes a second axial limiting member (82) adapted to prevent the inner pressure plate (61) from detaching from the circular cavity (65). The second axial limiting member (82) includes a second waist-shaped hole (821) disposed on the outer pressure plate (62) and communicating with the circular cavity (65). The second waist-shaped hole (821) is provided with a limiting circular block (822), which is connected to the inner pressure plate (61).

6. The easy-to-operate saw blade detection and fixing fixture according to claim 1, characterized in that, The spiral locking assembly (70) includes a locking nut (71) and a U-shaped rod (72). The locking nut (71) is spirally connected to the screw (5), and the two ends of the U-shaped rod (72) are connected to the ends of the locking nut (71).

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