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CN-224222860-U - Saw blade replacing mechanism for sliding table saw

CN224222860UCN 224222860 UCN224222860 UCN 224222860UCN-224222860-U

Abstract

The utility model belongs to the technical field of sliding table saws, in particular to a saw blade replacing mechanism for a sliding table saw, which comprises a pre-socket, a saw blade body, a pushing cover and an eccentric lock handle piece, wherein the eccentric lock handle piece is provided with a tensioning assembly which is jointed with the pre-socket, the pushing cover is arranged on the tensioning assembly and compresses the saw blade on the pre-socket through the eccentric lock handle, and the pre-socket is provided with a limiting assembly for limiting the rebound of the eccentric lock handle. The cooperation of the pre-socket, the tensioning assembly and the eccentric lock handle can enable the mechanism to improve and optimize saw blade replacement operation, and enable the saw blade to be assembled and fixed in advance. When the eccentric lock is replaced, the eccentric lock can be clamped or released only by operating the eccentric lock handle, so that the installation efficiency and convenience are improved, and the installation risk is reduced.

Inventors

  • GUO XIPING
  • ZHANG FENGJIAO

Assignees

  • 洛阳创智包装技术有限公司

Dates

Publication Date
20260512
Application Date
20250604

Claims (8)

  1. 1. The saw blade replacing mechanism for the sliding table saw is characterized by comprising a pre-socket (1), a saw blade body (3), a pushing cover (5) and an eccentric lock handle (11), wherein a tensioning assembly which is attached to the pre-socket (1) is arranged on the eccentric lock handle (11), the pushing cover (5) is arranged on the tensioning assembly, the saw blade is pressed on the pre-socket (1) through the eccentric lock handle (11), and a limiting assembly for limiting rebound of the eccentric lock handle (11) is arranged on the pre-socket (1); The tensioning assembly comprises a plugboard frame (2) and a saw sleeving shaft (8), the saw sleeving shaft (8) is sleeved on the saw blade body (3), the saw blade body (3) is arranged on the side face of the pre-socket (1) in a corresponding mode, the plugboard frame (2) is arranged in an opening groove (1 a) formed in the pre-socket (1), the side face of the plugboard frame (2) is fixedly connected with one side of the saw sleeving shaft (8), an inner sleeve block (1 b) is fixedly arranged in the opening groove (1 a), the plugboard frame (2) is sleeved in the opening groove (1 a) and sleeved with the inner sleeve block (1 b), the plugboard frame (2) is in a clearance fit state after being sleeved with the inner sleeve block (1 b) and the opening groove (1 a), the other side of the pre-socket (1) is in interference fit with a driving shaft (1 d), and the driving shaft (1 d) is a motor output shaft of the sliding table saw; The eccentric lock handle (11) is rotatably arranged on one side of the pull rod (9), the other side of the pull rod (9) is in threaded connection with the other side of the sleeve saw shaft (8), and the pushing cover (5) is sleeved on the sleeve saw shaft (8) and abuts against the side face of the saw blade body (3).
  2. 2. The saw blade replacing mechanism for the sliding table saw is characterized in that the pull rod (9) is in sliding fit with a round hole formed in the pushing cover (5), the eccentric lock handle (11) abuts against the pushing ring (10), the pushing ring (10) is sleeved on the pull rod (9) in a sliding mode and abuts against the side face of the pushing cover (5), and the radius of the pushing ring (10) is larger than the radius of the round hole formed in the pushing cover (5).
  3. 3. The saw blade replacing mechanism for the sliding table saw is characterized in that the limiting assembly comprises a rebound constraint cover (4) and a reverse thrust spring (6), the rebound constraint cover (4) is sleeved on the push cover (5), the reverse thrust spring (6) is sleeved on the push cover (5) and is positioned between a fixed ring (51) and a reverse thrust ring (41), the fixed ring (51) is fixedly arranged on one side, close to the saw blade body (3), of the push ring (10), the reverse thrust ring (41) is fixedly arranged on the opening side of the rebound constraint cover (4), a rebound sleeve hole (42) sleeved on the eccentric lock handle (11) is formed in the rebound constraint cover (4), and the radius of the rebound sleeve hole (42) is larger than the radius of the push ring (10) and smaller than the radius of the sleeve saw shaft (8).
  4. 4. A saw blade replacing mechanism for a sliding table saw according to claim 3, wherein the limiting assembly further comprises a guide rail screw (7), the guide rail screw (7) penetrates through the rebound constraint cover (4) and the pushing cover (5) to be in threaded fit with a screw hole (81), the screw hole (81) is formed in the other side face of the saw sleeving shaft (8), and the guide rail screw (7) and the pushing ring (10) are arranged in a staggered mode.
  5. 5. The saw blade replacing mechanism for the sliding table saw according to claim 4, wherein the inner sleeve block (1 b) and the inner side of the opening groove (1 a) are correspondingly provided with concave notches (1 c), the notches (1 c) are matched with the inserting plate frame (2) in an embedded mode, and the length of the inner side of the inserting plate frame (2) is 1.2 times that of the inner sleeve block (1 b).
  6. 6. A saw blade replacing mechanism for a sliding table saw according to claim 5, wherein the width of the notch (1 c) is set to be one half of the displacement distance of the insert plate frame (2) driven by the eccentric lock handle (11), and the thickness of the insert plate frame (2) is set to be identical with the width of the notch (1 c).
  7. 7. The saw blade replacing mechanism for a sliding table saw according to claim 6, wherein when the insert plate frame (2) is attached to the inner side of the notch (1 c), the side surface connected with the sleeve saw shaft (8) is located in the open groove (1 a) and is arranged in a dislocation manner with the side surface of the pre-socket (1).
  8. 8. A blade replacement mechanism for a bench saw according to claim 7, wherein the eccentric lock handle is rotated to drive the push cover (5) to press the blade body (3) against the side of the pre-socket (1) and set the clamping force thereof to not lower than 250N.

Description

Saw blade replacing mechanism for sliding table saw Technical Field The utility model belongs to the technical field of sliding table saws, and particularly relates to a saw blade replacing mechanism for a sliding table saw. Background In the replacement operation of the saw blade of the sliding table saw, the traditional locking nut fixing mode has obvious operation defects and potential safety hazards, firstly, in order to ensure the working stability of the saw blade, the locking nut needs to apply great torque, an operator needs to consume a great amount of physical force to overcome pretightening force during the disassembly, the screw thread corrosion or impurity invasion can further increase the disassembly difficulty after long-term use, secondly, when the spanner is used for forcefully rotating and disassembling, the inertia generated by suddenly loosening the nut easily causes unexpected contact of limbs or tools of the operator and the sharp saw blade to cause serious injury accidents, furthermore, when the new saw blade is installed, enough tightening torque needs to be applied, the labor intensity is increased, the replacement time is greatly prolonged due to repeated adjustment of the position of the tool, and particularly, the whole replacement process comprises a plurality of steps of disassembling the nut, taking down the old saw blade, installing the new saw blade, fastening the nut and the like, and the operator needs to simultaneously position the saw blade and operate the tool. Therefore, the utility model provides a saw blade replacing mechanism for a sliding table saw, which aims to solve the problems. Disclosure of utility model The utility model aims to provide a saw blade replacing mechanism for a sliding table saw, which can solve the technical problems. The technical scheme adopted by the utility model is as follows: The utility model provides a saw blade replacement mechanism for a sliding table saw, which comprises a pre-socket, a saw blade body, a pushing cover and an eccentric lock handle piece, wherein a tensioning assembly which is attached to the pre-socket is arranged on the eccentric lock handle piece; The tensioning assembly comprises a plugboard frame and a saw sleeving shaft, the saw sleeving shaft is sleeved on the saw blade body, the saw blade body is arranged on the side face of the pre-socket and corresponds to the side face of the pre-socket, the plugboard frame is arranged in an opening groove formed in the pre-socket, the side face of the plugboard frame is fixedly connected with one side of the saw sleeving shaft, an inner sleeve block is fixedly arranged in the opening groove, the plugboard frame is sleeved in the opening groove and is sleeved with the inner sleeve block, after the plugboard frame is sleeved with the inner sleeve block and the opening groove, the saw blade body is in a clearance fit state, the other side of the pre-socket is in interference fit with a driving shaft, and the driving shaft is a motor output shaft of the sliding table saw; The eccentric lock handle piece is rotatably arranged on one side of the pull rod, the other side of the pull rod is in threaded connection with the other side of the sleeve saw shaft, and the pushing cover is sleeved on the sleeve saw shaft and abuts against the side face of the saw blade body. Preferably, the pull rod is in sliding fit with a round hole formed in the pushing cover, the eccentric lock handle piece abuts against the pushing ring, the pushing ring is arranged on the pull rod in a sliding sleeve mode and abuts against the side face of the pushing cover, and the radius of the pushing ring is larger than that of the round hole formed in the pushing cover. Preferably, the limiting assembly comprises a rebound constraint cover and a reverse thrust spring, the rebound constraint cover is sleeved on the push cover, the reverse thrust spring is sleeved on the push cover and positioned between the fixed ring and the reverse thrust ring, the fixed ring is fixedly arranged on one side of the push ring close to the saw blade body, the reverse thrust ring is fixedly arranged on the opening side of the rebound constraint cover, a rebound sleeve hole sleeved on the eccentric lock handle is formed in the rebound constraint cover, and the radius of the rebound sleeve hole is larger than that of the push ring and smaller than that of the sleeve saw shaft. Preferably, the limiting assembly further comprises a guide rail screw, the guide rail screw penetrates through the rebound constraint cover and the pushing cover to be in threaded fit with a screw hole, the screw hole is formed in the other side face of the saw arbor, and the guide rail screw and the pushing ring are arranged in a staggered mode. Preferably, the inner sleeve block and the inner side of the opening groove are correspondingly provided with concave notches, the notches are matched with the plugboard frame in an embedded mode, and the length of th