Electric circular saw for upside-down cutting

By adjusting components and using a level sensor to monitor the saw blade tilt angle in real time, and using a motor-driven gear set to adjust the electric circular saw angle, combined with rubber pads to absorb errors, the problems of cutting accuracy and ease of installation when the electric circular saw is installed upside down are solved, achieving an efficient and safe installation process.

CN224103117UActive Publication Date: 2026-04-10JINHUA COOFIXTOOLS I&E CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHUA COOFIXTOOLS I&E CO LTD
Filing Date
2025-04-28
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

When existing circular saws are installed upside down, the cutting accuracy is poor and the installation and operation are inconvenient. In particular, it is difficult to accurately ensure the parallelism between the saw blade axis and the table surface, which leads to the cutting surface tilting or the saw blade rubbing against the table surface, affecting the cutting accuracy. In addition, the installation process requires multiple people to cooperate and poses safety hazards.

Method used

Using adjustment components and a level sensor, the saw blade angle is adjusted via a motor-driven gear set. Combined with rubber pads to absorb installation errors, it ensures a straight cut surface. Magnets are used to fix screws, and a remote control module provides real-time calibration guidance. A pull rope prevents screws from being lost, and it adapts to different table thicknesses, enabling automatic screw retrieval and improving installation efficiency.

Benefits of technology

It improves cutting accuracy, reduces installation difficulty and safety risks, extends equipment life, reduces maintenance costs, and enhances the convenience and safety of the installation process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224103117U_ABST
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Abstract

The electric circular saw is characterized in that the electric circular saw comprises a first mounting plate, a second mounting plate, fixing screws, an electric circular saw body and an adjusting assembly, butt joint grooves are formed in the two ends of the first mounting plate, the second mounting plate is inserted into the butt joint grooves, and screw holes are formed in the butt joint portions of the first mounting plate and the second mounting plate; the fixing screws penetrate through the screw holes to be in threaded connection with the table board, the electric circular saw is installed on the second installation plate, a saw blade of the electric circular saw stretches across the upper face and the lower face of the second installation plate, and an adjusting assembly is arranged between the electric circular saw and the second installation plate and used for adjusting the installation angle of the electric circular saw. The device has the advantages that the inclination angle of the saw blade is monitored in real time through the adjusting assembly, the rubber mat and the horizontal sensor, the motor drives the gear set to drive the third mounting plate to rotate, the rubber mat absorbs mounting errors through elastic deformation, it is ensured that the cutting face is straight, friction between the saw blade and a table top is avoided, and cutting precision is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to electric tool auxiliary equipment technical field especially, a kind of electric circular saw for inverted cutting. BACKGROUND

[0002] Electric circular saw as a common electric cutting tool, it is widely used in cutting operation of wood, metal and other materials. It realizes cutting function by high-speed rotating circular saw blade, with strong portability, cutting efficiency and other characteristics. In conventional use, electric circular saw is usually operated in handheld mode, but to adapt to some special scenarios, part of users will install electric circular saw upside down on the bottom of workbench, so that saw blade passes through the table top upward, forming a cutting device similar to bench saw. This inverted use mode can improve cutting accuracy and stability to some extent, while retaining the flexible disassembly characteristics of electric circular saw.

[0003] In prior art, the inverted fixation of electric circular saw usually relies on mechanical connection structure. Specifically, user needs to lock the bottom plate of electric circular saw with a separate mounting plate through several screws, and then fix the mounting plate on the bottom of workbench. During installation, it is necessary to ensure that the saw blade of electric circular saw passes through the preset cutting slot of table top. Although this scheme can realize the inverted function of electric circular saw, it has significant defects in installation process. First, since electric circular saw itself is not designed for inverted use, the parallelism of saw blade axis and table top cutting slot cannot be accurately guaranteed when fixed manually by screws, which easily leads to inclined cutting surface or friction between saw blade and table top, affecting cutting accuracy. Second, installation process needs cooperation of multiple people: one person needs to determine the position of saw blade on the table top and hold electric circular saw, and the other person needs to operate screw fastening in the narrow space under the table, which makes the installation efficiency low and has safety hazards due to space limitation. SUMMARY

[0004] The technical problem to be solved by the utility model is poor cutting accuracy and poor installation operation convenience, and the utility model provides a kind of electric circular saw for inverted cutting, to solve the above problems.

[0005] The technical scheme adopted by the utility model to solve the above technical problems is as follows: a kind of electric circular saw for inverted cutting, including first mounting plate, second mounting plate, fixed screw, electric circular saw and adjustment assembly, second mounting plate is opened with screw hole for passing through screw at left and right two ends, second mounting plate is fixedly connected with the bottom surface of table plate by screw, the both ends of first mounting plate are opened with butt joint groove, second mounting plate is inserted into butt joint groove, and the butt joint part of first mounting plate and second mounting plate is opened with screw hole, fixed screw is connected with the thread of table plate by passing through screw hole, electric circular saw is installed on second mounting plate, the saw blade of electric circular saw spans the upper and lower surfaces of second mounting plate, adjustment assembly is arranged between electric circular saw and second mounting plate, and adjustment assembly is used to adjust the installation angle of electric circular saw.

[0006] The further preferred scheme of the utility model further provides: still include horizontal sensor, control box and remote control module, first gear wheel install horizontal sensor, control box and remote control module, control box is connected with horizontal sensor, motor and remote control module respectively.

[0007] The further preferred scheme of the utility model further provides: still include horizontal sensor, control box and remote control module, first gear wheel install horizontal sensor, control box and remote control module, control box is connected with horizontal sensor, motor and remote control module respectively.

[0008] The further preferred scheme of the utility model further provides: still include installation instruction card, first installation plate and second installation plate all are connected with installation instruction card, and position corresponds.

[0009] The further preferred scheme of the utility model further provides: still include pull rope, and pull rope one end is set in fixed screw end part, and the other end is connected with first installation plate.

[0010] The further preferred scheme of the utility model further provides: still include magnet, and the screw hole inner side of second installation plate is connected with magnet.

[0011] The further preferred scheme of the utility model further provides: still include rubber pad, and second installation plate and the side of second installation plate and table board contact all are connected with rubber pad.

[0012] The further preferred scheme of the utility model further provides: still include guide ring, and the butt joint groove port of first installation plate is provided with guide ring.

[0013] Compared with prior art, the utility model has the advantages that: through adjusting assembly and rubber pad, horizontal sensor real -time monitoring saw blade inclination angle, motor drive gear wheel group drives third installation plate rotation, rubber pad absorbs installation error through elastic deformation, ensures that cutting surface is straight, avoids saw blade and mesa friction, improves cutting precision, through rubber pad buffer vibration and adaptation locking pressure, pull rope prevents screw loss, remote module provides real -time calibration instruction, elastic locking adapts to different table board thickness, when dismounting, screw is automatically recycled, prolongs equipment life, reduces maintenance cost, optimizes installation process. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described in detail below in combination with the drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and therefore should not be regarded as limiting the scope of the utility model. In addition, unless specifically indicated, the drawings only schematically show the composition or structure of the described object conceptually and can contain exaggerated display, and the drawings are not necessarily drawn to scale.

[0015] Figure 1 It is the overall structure schematic diagram of the utility model;

[0016] Figure 2 It is the installation structure schematic diagram of the third mounting plate and the first gear of the utility model;

[0017] Figure 3 It is the connection relation schematic diagram of the first mounting plate and the second mounting plate of the utility model;

[0018] Figure 4 It is the installation structure schematic diagram of the fixed frame and the motor of the utility model;

[0019] Figure 5 It is the installation structure schematic diagram of the horizontal sensor and the control box of the utility model.

[0020] In the drawing: 1, first mounting plate, 2, butt joint groove, 3, second mounting plate, 4, screw hole, 5, fixed screw, 6, electric circular saw, 7, third mounting plate, 8, first gear, 9, fixed frame, 10, motor, 101, operating button, 11, second gear, 12, horizontal sensor, 13, control box, 14, remote control module, 15, installation instruction card, 16, pull rope, 17, magnet, 18, rubber pad, 19, guide ring. DETAILED DESCRIPTION

[0021] The preferred embodiments of the utility model will be described in detail below with reference to the drawings. Those skilled in the art will appreciate that these descriptions are only descriptive, exemplary and should not be interpreted as limiting the scope of protection of the utility model.

[0022] It should be noted that: similar signs represent similar items in the following drawings, therefore, once an item is defined in one drawing, it can not be further defined and explained in the subsequent drawings.

[0023] This embodiment mainly describes the structure of the electric circular saw, as follows:

[0024] Embodiment: an electric circular saw for flip-chip cutting, as shown in Figures 1-3As shown, including the first mounting plate 1, the second mounting plate 3, the fixed screw 5, the electric circular saw 6 and the adjustment assembly, the second mounting plate 3 is provided with screw holes 4 at both ends for passing through the screw, and the second mounting plate 3 is fixedly connected with the bottom surface of the table plate through the screw. The first mounting plate 1 is provided with butt joints 2 at both ends, and the second mounting plate 3 is inserted into the butt joint 2. The butt joint part of the first mounting plate 1 and the second mounting plate 3 is provided with screw holes 4, and the fixed screw 5 is screwed with the table plate through the screw holes 4. The electric circular saw 6 is installed on the second mounting plate 3, and the saw blade of the electric circular saw 6 spans the upper and lower surfaces of the second mounting plate 3. The adjustment assembly is arranged between the electric circular saw 6 and the second mounting plate 3, and is used for adjusting the installation angle of the electric circular saw 6. An auxiliary line perpendicular to the side edge of the table plate is made at the bottom of the table plate. The second mounting plate 3 is attached to the preset position at the bottom of the table plate, and the screw holes 4 of the second mounting plate 3 are aligned and positioned along the auxiliary line. Then, the butt joint 2 of the first mounting plate 1 is inserted into the second mounting plate 3 along the inclined surface of the guide ring 19. When the insertion is in place, the fixed screw 5 passes through the coincident screw holes 4 and is screwed into the table plate. The fixation of the second mounting plate 3 on the other side is completed, and the preliminary fixation of the electric circular saw 6 is completed.

[0025] As shown in Figures 2-5 The adjustment assembly includes a third mounting plate 7, a first gear 8, a fixed frame 9, a motor 10, a second gear 11 and an operation button 101. The second mounting plate 3 is rotatably connected with the third mounting plate 7, and the electric circular saw 6 is fixedly connected with the third mounting plate 7. The third mounting plate 7 is connected with the first gear 8 at the side edge. The second mounting plate 3 is connected with the fixed frame 9, and the fixed frame 9 is installed with the motor 10. The output shaft of the motor 10 is connected with the second gear 11. The first gear 8 is engaged with the second gear 11. The first mounting plate 1 is installed with the operation button 101, and the operation button 101 is wiredly connected with the motor 10. The operator observes the parallelism of the saw blade and the side edge of the table plate, controls the rotating speed of the motor 10 through the operation button 101, drives the second gear 11 through the motor 10, engages the second gear 11 with the first gear 8, drives the third mounting plate 7 to rotate, and closes the motor 10 when the parallelism of the saw blade is up to standard, so as to ensure that the end surface of the wood cutting is flat.

[0026] As shown in Figure 4 It also includes a horizontal sensor 12, a control box 13 and a remote control module 14. The third mounting plate 7 is installed with the horizontal sensor 12, the control box 13 and the remote control module 14. The control box 13 is connected with the horizontal sensor 12, the motor 10 and the remote control module 14 respectively. The horizontal sensor 12 monitors the inclination angle of the third mounting plate 7 in real time. After receiving the inclination data of the horizontal sensor 12, the remote control module 14 generates a dynamic arrow on the mobile terminal interface, indicating the orientation of the fixed screw 5 that needs to be adjusted preferentially. The operator manually adjusts the depth of the fixed screw 5 to correct the perpendicularity of the saw blade.

[0027] As shown in Figure 2As shown, it also includes installation instruction card 15, the first mounting plate 1 and the second mounting plate 3 are connected with installation instruction card 15, and the positions correspond.

[0028] As shown, Figure 3 As shown, it also includes pull rope 16, one end of pull rope 16 is sleeved on the end of fixed screw 5, and the other end is connected with first mounting plate 1, so that parts are avoided from being lost.

[0029] As shown, Figure 2 As shown, it also includes magnet 17, and the inner side of screw hole 4 of second mounting plate 3 is connected with magnet 17. Magnet 17 is embedded in the screw hole 4 of second mounting plate 3, and a magnetic attraction force is generated on the screw, so that the screw is stably hung in the hole position before being screwed in, and hand holding is not needed.

[0030] As shown, Figure 3 As shown, it also includes rubber pad 18, and the side, which contacts with the table plate, of first mounting plate 1 and second mounting plate 3 is connected with rubber pad 18. Rubber pad 18 is attached to the contact surface of first mounting plate 1 and second mounting plate 3 and the table plate, and installation errors are absorbed through elastic deformation in the screw locking process, and vibration transmission is reduced.

[0031] As shown, Figure 2 As shown, it also includes guide ring 19, and the port of butt joint groove 2 of first mounting plate 1 is provided with guide ring 19, and a polytetrafluoroethylene coating is arranged on the inner wall of guide ring 19, and the friction coefficient is lower than 0.1.

[0032] The worker attaches second mounting plate 3 to the bottom of the table plate, magnet 17 attracts the screw to be pre-fixed in the hole position, and hand operation is avoided. First mounting plate 1 is guided to be inserted with second mounting plate 3 through the inclined surface of guide ring 19, rubber pad 18 is elastically deformed under extrusion, and an adjustable space of ±3 mm is formed. When fixed screw 5 is screwed into the coincident hole position, rubber pad 18 is continuously compressed until a preset locking torque is reached, and at this time, the preliminary perpendicularity of the saw blade is controlled by the deformation amount of rubber pad 18.

[0033] The horizontal sensor 12 collects the inclination angle data of the third mounting plate 7, when it is detected that the deviation of the saw blade and the side of the table plate exceeds 0.5°, the control box 13 triggers the motor 10 to drive the second gear 11 at a rotating speed of 5 r / min. The gear pair drives the third mounting plate 7 to rotate at an angular velocity of 0.1° / s, and the motor 10 is paused for 2 seconds every 15° to provide the sensor with secondary verification, until the horizontal indicator light turns green. The remote control module 14 generates a direction indication arrow on the mobile terminal interface, guiding to preferentially adjust the fixed screw 5 at the corresponding position.

[0034] The infrared induction mark of the installation instruction card 15 triggers the beeping prompt when plugged into place, the magnetic attraction of the magnet 17 to the M6 screw is 2N, ensuring that the screw is stably hung before being screwed in. The pull rope 16 is automatically released from the magnetic screw under a 30N pulling force in the disassembly stage, and the inner wall coating of the guide ring 19 reduces the friction resistance during plugging and unplugging, so that the repeated disassembly and assembly efficiency is improved by 40%.

[0035] In the description of the utility model, it is necessary to explain that the terms "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0036] The above describes in detail the electric circular saw for flip-chip cutting provided by the utility model, the principle and implementation mode of the utility model are described in this paper by applying specific examples, and the above embodiment is only used to help understand the utility model and the core idea. It should be pointed out that for ordinary skilled personnel in the technical field, the utility model can be improved and modified in several ways without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the claims of the utility model.

Claims

1. An electric circular saw for flip cutting, characterized by: The utility model provides a table electric circular saw, including first mounting plate (1), second mounting plate (3), fixed screw (5), electric circular saw (6) and adjustment assembly, the both ends of second mounting plate (3) are opened the screw hole (4) for passing through screw, and second mounting plate (3) is fixedly connected with the bottom surface of table board through screw, and the both ends of first mounting plate (1) are opened butt joint groove (2), and second mounting plate (3) is inserted into butt joint groove (2), and the butt joint part of first mounting plate (1) and second mounting plate (3) are opened screw hole (4), and fixed screw (5) is connected with the table board through screw hole (4) and is screwed, and electric circular saw (6) is installed on second mounting plate (3), and the saw blade of electric circular saw (6) spans the upper and lower surfaces of second mounting plate (3), and adjustment assembly is arranged between electric circular saw (6) and second mounting plate (3), and adjustment assembly is used for adjusting the installation angle of electric circular saw (6).

2. A circular saw for flip cutting according to claim 1, characterized in that: Adjustment assembly includes third mounting plate (7), first gear (8), fixed frame (9), motor (10), second gear (11) and operation button (101), second mounting plate (3) is rotatably connected with third mounting plate (7), and electric circular saw (6) is fixedly connected with third mounting plate (7), and the side of third mounting plate (7) is connected with first gear (8), and second mounting plate (3) is connected with fixed frame (9), and fixed frame (9) is installed with motor (10), and the output shaft of motor (10) is connected with second gear (11), and first gear (8) is engaged with second gear (11), and first mounting plate (1) is installed with operation button (101), and operation button (101) is wiredly connected with motor (10).

3. A circular saw for flip cutting according to claim 2, characterized in that: It also includes horizontal sensor (12), control box (13) and remote control module (14), and third mounting plate (7) is installed with horizontal sensor (12), control box (13) and remote control module (14), and control box (13) is connected with horizontal sensor (12), motor (10) and remote control module (14) respectively.

4. A circular saw for flip cutting according to claim 3, characterized in that: It also includes installation instruction card (15), and first mounting plate (1) and second mounting plate (3) are connected with installation instruction card (15) respectively and correspondingly.

5. A circular saw for flip cutting according to claim 4, characterized in that: It also includes pull rope (16), and one end of pull rope (16) is sleeved on the end of fixed screw (5), and the other end is connected with first mounting plate (1).

6. An electric circular saw for flip cutting according to claim 5, characterized in that: It also includes magnet (17), and magnet (17) is connected on the inner side of screw hole (4) of second mounting plate (3).

7. A circular saw for flip cutting according to claim 6, characterized in that: It also includes rubber pad (18), and rubber pad (18) is connected on the side of first mounting plate (1) and second mounting plate (3) contacting with table board.

8. A circular saw for flip cutting according to claim 7, characterized in that: It also includes guide ring (19), and guide ring (19) is arranged on the port of butt joint groove (2) of first mounting plate (1).