Hole saw forming equipment

The automatic demolding of the saw blade is achieved by combining a hydraulic cylinder and a push spring. Combined with the automatic welding of the welding displacement motor and the threaded moving rod, the problem of the saw blade being difficult to remove in the traditional hole saw pressing and forming machine is solved, which improves production efficiency and reduces labor costs.

CN223572477UActive Publication Date: 2025-11-21ZHEJIANG JINNUO TOOLS CO LTD
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Patent Information

Application Number
CN202422017549.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-20
Publication Date
2025-11-21
Estimated Expiration
2034-08-20

AI Technical Summary

Technical Problem

In traditional hole saw pressing and forming machines, the high-temperature saw blade tightly wraps around the surface of the inner mold column after pressing and forming, which makes manual part removal inconvenient, reduces production efficiency, and poses a risk of burns.

Method used

The system employs a combination of a hydraulic cylinder driving a lower pressure frame and a push spring to achieve automatic demolding of the saw blade; and utilizes the cooperation of a welding displacement motor and a threaded moving rod to automate the operation of the laser welding gun, replacing manual welding.

Benefits of technology

It enables automatic demolding and welding of saw blades, avoids the danger of high-temperature part removal, reduces labor costs, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides hole saw forming equipment, and relates to the technical field of hole saw manufacturing. A vertical plate is welded to the rear end of the inner mold column, a pushing spring is welded to the front side face of the vertical plate, a pushing barrel is welded to the front end of the pushing spring, a pushing frame is welded to the lower side face of the pushing barrel, and a pushing barrel is slidably connected to the outer side face of the inner mold column. The hydraulic cylinder is connected to the upper side face of the bottom plate through a bolt and connected with the hydraulic oil supply station through an oil pipe, the top end of a telescopic rod of the hydraulic cylinder is provided with a downward pressing frame, and the upper side face of the downward pressing frame is connected with a downward pressing block through a bolt. Through the arrangement of the hydraulic cylinder, the pressing frame, the pushing spring and the pushing cylinder, automatic demolding and part taking work after hole saw forming is achieved, the production efficiency of the hole saw is improved, and the problem that after saw blades of a traditional hole saw pressing forming machine are pressed and formed, the surfaces of inner mold columns are tightly wrapped with high-temperature saw blades, and consequently manual part taking operation is inconvenient is solved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to hole saw manufacturing technical field, more specifically, especially relates to a hole saw forming equipment. BACKGROUND

[0002] Hole saw is a kind of cylindrical sawing type punching equipment for processing circular hole on the plane of copper, iron, stainless steel, organic glass and various plate materials, and hole saw is usually composed of saw blade and saw sleeve two parts, wherein the saw blade is the core component of hole saw for cutting circular hole, at present, in the forming production and processing of hole saw blade, the saw blade needs to be heat treated first, then the flat saw blade is bent and pressed into cylinder through hole saw forming equipment, and then manual welding of cylinder butt joint is carried out, wherein after flat saw blade is bent and pressed into cylinder, the saw blade is often tightly wrapped on the outer surface of inner mold column, since the saw blade is heat treated at high temperature, when manually taking the saw blade, it is not only inconvenient to directly take the saw blade from the inner mold column, and long time contact with high temperature saw blade can easily cause worker's hand to be scalded, therefore, it can be seen that after the saw blade of traditional hole saw press forming machine is press formed, manual taking operation is inconvenient, and hole saw production efficiency is seriously reduced. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a hole saw forming equipment to solve the problem that after the saw blade of traditional hole saw press forming machine is press formed, high temperature saw blade is tightly wrapped on the surface of inner mold column, and manual taking operation is inconvenient.

[0004] The utility model provides a kind of hole saw forming equipment, including bottom plate;The upper side of the bottom plate is connected with hydraulic oil supply station by bolt, the upper side of hydraulic oil supply station is connected with controller by bolt, controller is connected with hydraulic oil supply station by wire, the upper side of bottom plate is placed with load box, the upper side of bottom plate is connected with left side support and right side support by bolt, the top of right side support is welded with guide rod, the upper side of bottom plate is welded with vertical plate, the front side and rear side of vertical plate are all welded with support plate, the lower side of support plate is welded with bottom plate;It further includes beam frame, hydraulic cylinder, upper pressing block and inner mould column;The rear side of left side support is equipped with welding displacement motor, the motor shaft of welding displacement motor is equipped with threaded moving rod, and threaded moving rod is rotatably connected with left side support;The left side of vertical plate is equipped with pressing-in motor, the motor shaft of pressing-in motor is equipped with bidirectional threaded rod, the outer side of bidirectional threaded rod is engagedly connected with sliding frame, and sliding frame is connected with upper pressing block by bolt;The rear end of inner mould column is welded with vertical plate, the front side of vertical plate is welded with push spring, the front end of push spring is welded with push cylinder, the lower side of push cylinder is welded with push frame, and push cylinder is slidably connected with the outer side of inner mould column;The upper side of bottom plate is connected with hydraulic cylinder by bolt, hydraulic cylinder is connected with hydraulic oil supply station by oil pipe, the top end of telescopic rod of hydraulic cylinder is equipped with lower pressing frame, the left side and right side of lower pressing frame are both equipped with cuboid boss, and the upper side of lower pressing frame is connected with lower pressing block by bolt;The upper side of beam frame is equipped with laser welding control machine, the front side center position of beam frame is equipped with laser welding gun, and laser welding gun is connected with laser welding control machine by wire;Controller is connected with welding displacement motor by wire, and controller is connected with pressing-in motor by wire.

[0005] In at least some embodiments, the front side of the beam frame near the left end is provided with a front-to-back through threaded hole, the outer side of the threaded moving rod is threadedly engagedly connected in the threaded hole of the beam frame, the front side of the beam frame near the right end is provided with a front-to-back through hole, and the guide rod is inserted into the through hole of the beam frame.

[0006] In at least some embodiments, the number of upper pressing blocks is two groups, and the lower side of each group of upper pressing blocks is provided with a quarter-arc recess.

[0007] In at least some embodiments, the number of sliding frames is two groups, and the sliding frames are symmetrically distributed left and right, the part near the rear end of each group of sliding frames is provided with a left-to-right through threaded hole, the outer side of the bidirectional threaded rod is positively threadedly engagedly connected in the threaded hole of the right sliding frame, and the outer side of the bidirectional threaded rod is negatively threadedly engagedly connected in the threaded hole of the left sliding frame.

[0008] In at least some embodiments, the front side center of the vertical plate is provided with a vertical distribution of longitudinal through-slots, the pressing frame is inserted into the longitudinal through-slots of the vertical plate, and the left and right sides of the longitudinal through-slots of the vertical plate are provided with two groups of transverse through-slots, and the two groups of sliding frames are respectively inserted into the two groups of transverse through-slots of the vertical plate, and the upper side and the lower side of the sliding frame are attached to the inner side of the transverse through-slots.

[0009] In at least some embodiments, the upper side of the pressing block is a semicircular groove.

[0010] In at least some embodiments, the pushing frame is a concave structure, the pressing frame is embedded in the concave structure of the pushing frame, the front side of the pushing frame is provided with an inclined surface structure, and the upper edge of the rear side of the rectangular block of the left side and the right side of the pressing frame is attached to the inclined surface structure of the pushing frame.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1、In the utility model, the telescopic rod of the hydraulic cylinder drives the rectangular block of the pressing frame to constitute a pushing and sliding structure on the inclined surface of the pushing frame and a spring pushing structure between the pushing cylinder and the vertical plate, and in the process of descending the pressing frame, the spring pushes the pushing cylinder to move forward along the inner mold column through the elastic force, so that the pushing cylinder pushes and transports the saw blade attached to the outer side of the inner mold column, and the automatically formed cylindrical saw blade is automatically separated from the inner mold column, the automatic demolding and taking work after the hole saw forming is realized, the traditional manual taking work is abandoned, and the danger of high-temperature hole saw taking is avoided.

[0013] 2、In the utility model, the threaded moving rod driven by the welding displacement motor constitutes a threaded engagement transmission structure in the threaded through hole of the beam frame, so that the beam frame drives the laser welding gun to horizontally weld the butt joint of the cylindrical saw blade, the manual joint welding after the pressing and taking is abandoned, the labor cost is reduced, the pressing operation and the joint welding operation are combined into one, and the production efficiency of the hole saw is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a structure schematic diagram of the utility model from the upside.

[0016] Figure 3 It is a structure schematic diagram of the utility model from the upside.

[0017] Figure 4 It is a structure schematic diagram of the utility model from the upside.

[0018] Figure 5 It is a structure schematic diagram of the utility model from the upside.

[0019] Figure 6 is a left side view structure schematic diagram of the utility model.

[0020] Reference signs: 1, right side support; 2, guide rod; 3, left side support; 4, threaded moving rod; 5, welding displacement motor; 6, beam frame; 7, laser welding control machine; 8, laser welding gun; 9, bottom plate; 10, material loading box; 11, vertical plate; 12, support plate; 13, pressing motor; 14, two-way threaded rod; 15, hydraulic oil supply station; 16, hydraulic cylinder; 17, sliding frame; 18, upper pressing block; 19, lower pressing frame; 20, pushing frame; 21, pushing spring; 22, inner mold column; 23, lower pressing block; 24, pushing cylinder; 25, controller. DETAILED DESCRIPTION

[0021] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0022] As Figures 1-6As shown, the utility model provides a hole saw forming equipment, including bottom plate 9, the upper side of bottom plate 9 is connected with hydraulic oil supply station 15 through bolt, the upper side of hydraulic oil supply station 15 is connected with controller 25 through bolt, controller 25 is connected with hydraulic oil supply station 15 through wire, the upper side of bottom plate 9 places load box 10, the upper side of bottom plate 9 is connected with left side support 3 and right side support 1 through bolt, the top of right side support 1 is welded with guide rod 2, the upper side of bottom plate 9 is welded with vertical plate 11, the front side and the back side of vertical plate 11 are all welded with support plate 12, the lower side of support plate 12 is welded with bottom plate 9, it further includes beam frame 6, hydraulic cylinder 16, upper pressure block 18 and inner mould column 22, the back side of left side support 3 is installed with welding displacement motor 5, the motor shaft of welding displacement motor 5 is installed with threaded moving rod 4, threaded moving rod 4 is rotatably connected with left side support 3, the left side of vertical plate 11 is installed with pressing machine 13, the motor shaft of pressing machine 13 is installed with two-way threaded rod 14, the outer side of two-way threaded rod 14 is engagedly connected with sliding frame 17, and sliding frame 17 is connected with upper pressure block 18 through bolt, the back end of inner mould column 22 is welded with vertical plate 11, the front side of vertical plate 11 is welded with push spring 21, the front end of push spring 21 is welded with push cylinder 24, the lower side of push cylinder 24 is welded with push frame 20, and push cylinder 24 is slidably connected to the outer side of inner mould column 22, hydraulic cylinder 16 is connected on the upper side of bottom plate 9 through bolt, hydraulic cylinder 16 is connected with hydraulic oil supply station 15 through oil pipe, the top end of the telescopic rod of hydraulic cylinder 16 is installed with lower pressure frame 19, the left side and the right side of lower pressure frame 19 are both provided with cuboid bosses, and the upper side of lower pressure frame 19 is connected with lower pressure block 23 through bolt, the upper side of beam frame 6 is installed with laser welding control machine 7, the front side center position of beam frame 6 is installed with laser welding gun 8, and laser welding gun 8 is connected with laser welding control machine 7 through wire, controller 25 is connected with welding displacement motor 5 through wire, and controller 25 is connected with pressing machine 13 through wire.

[0023] In the embodiment of the present disclosure, the front side of the beam frame 6 is provided with a front-to-back threaded hole near the left end, the threaded moving rod 4 is threadedly engaged in the threaded hole of the beam frame 6, the front side of the beam frame 6 is provided with a front-to-back through hole near the right end, the guide rod 2 is inserted into the through hole of the beam frame 6, and during the rotation of the threaded moving rod 4 driven by the welding displacement motor 5, the threaded moving rod 4 drives the beam frame 6 to move directionally forward and backward along the guide rod 2, so that the beam frame 6 drives the laser welding gun 8 to perform stable and neat displacement laser welding on the butt joint of the cylindrical saw blade, replacing manual welding after taking out the workpiece, reducing labor cost, and improving the forming efficiency of the hole saw.

[0024] In the embodiment of the present disclosure, the number of upper pressing blocks 18 is two groups, and the lower side of each group of upper pressing blocks 18 is provided with a quarter circular arc groove. The upper pressing block 18 circular arc groove cooperates with the upper half part of the inner mold column 22 to perform bending and pressing forming work on the saw blade.

[0025] In the embodiment of the present disclosure, the number of carriages 17 is two groups, and the carriages 17 are symmetrically distributed left and right. The part near the rear end of each group of carriages 17 is provided with a left-right through threaded hole. The outer side of the bidirectional threaded rod 14 is engaged and connected in the threaded hole of the right carriage 17 through the forward threaded end, and the outer side of the bidirectional threaded rod 14 is engaged and connected in the threaded hole of the left carriage 17 through the reverse threaded end. In the process of rotating the bidirectional threaded rod 14, the two groups of carriages 17 are bolted to drive the upper pressing blocks 18 to move left and right, and the upper pressing blocks 18 perform pressing work on the saw blade.

[0026] In the embodiment of the present disclosure, the front side of the vertical plate 11 is provided with a vertical distribution longitudinal through slot, and the lower pressing frame 19 is inserted into the longitudinal through slot of the vertical plate 11. The left side and the right side of the longitudinal through slot of the vertical plate 11 are each provided with two groups of transverse through slots, and the two groups of carriages 17 are respectively inserted into the two groups of transverse through slots of the vertical plate 11. The upper side and the lower side of the carriage 17 are attached to the inner side of the transverse through slot, and the transverse through slot of the vertical plate 11 directionally limits and supports the carriage 17, so that the two groups of carriages 17 stably push the saw blade to be attached to the upper half part of the inner mold column 22 for bending and pushing forming.

[0027] In the embodiment of the present disclosure, the upper side of the lower pressing block 23 is a semicircular arc groove, and the lower pressing block 23 cooperates with the lower half part of the inner mold column 22 to perform bending and pressing forming work on the saw blade.

[0028] In the embodiment of the present disclosure, the push frame 20 is a concave structure, the lower pressing frame 19 is embedded in the concave structure of the push frame 20, and the front side of the push frame 20 is provided with an inclined surface structure. The inclined surface structure of the push frame 20 is attached to the left side and the right side of the lower pressing frame 19, and the upper edge of the cuboid protrusion on the rear side of the lower pressing frame 19 is attached to the inclined surface structure of the push frame 20. In the process of lifting the lower pressing frame 19 upward, the lower pressing frame 19 pushes the inclined surface of the push frame 20 through the cuboid protrusion, so that the push frame 20 moves backward, the pushing cylinder 24 extrudes the pushing spring 21 and separates from the pressing area of the inner mold column 22. In the process of lowering the lower pressing frame 19, the pushing spring 21 pushes the pushing cylinder 24 to automatically push the hole saw formed by pressing and welding out of the inner mold column 22.

[0029] The specific use and effect of the embodiment are as follows:

[0030] The utility model discloses a hole saw's compression forming work is carried out, first, the flat saw blade is placed in the semicircle recess of the lower pressure block 23 directly above, and then the controller 25 controls hydraulic oil supply station 15 to deliver hydraulic oil to the hydraulic cylinder 16, and the telescopic rod of hydraulic cylinder 16 drives the lower pressure frame 19 to move upwards along the vertical slot of vertical plate 11, and the lower pressure frame 19 drives the lower pressure block 23 to move upwards, at this moment, the long rectangular protrusion rear side upper edge of the left side and the right side of lower pressure frame 19 promotes the inclined plane structure of push frame 20, and push frame 20 drives push cylinder 24 to overcome the elastic force of push spring 21 and moves backwards along inner mould column 22, and push cylinder 24 is separated from the compression part of flat saw blade in inner mould column 22, and the lower pressure block 23 drives the flat saw blade to contact the lower half part of inner mould column 22 and carry out bending deformation extrusion, and after extrusion, the flat saw blade becomes U-shaped saw blade, and then the controller 25 controls the compression motor 13 to drive the bidirectional threaded rod 14 to rotate, and since the threaded through hole of two groups of carriages 17 is engaged in the positive screw end and the reverse screw end of bidirectional threaded rod 14 respectively, the bidirectional threaded rod 14 drives two groups of carriages 17 to move towards each other along the vertical slot of vertical plate 11, and two groups of upper pressure blocks 18 drive the quarter arc recess of two groups of upper pressure blocks 18 to extrude the outer surface of the upper half part of inner mould column 22, and make the U-shaped saw blade to be compressed into cylindrical saw blade, and after upper pressure block 18 extrudes the cylindrical saw blade for a period of time, the compression motor 13 drives the bidirectional threaded rod 14 to rotate reversely, and the bidirectional threaded rod 14 drives two groups of carriages 17 to move apart, and two groups of upper pressure blocks 18 are separated from the cylindrical saw blade, and the controller 25 controls the welding displacement motor 5 to drive the threaded moving rod 4 to rotate, and since the threaded moving rod 4 is engaged in the threaded through hole of beam frame 6, the threaded moving rod 4 drives beam frame 6 to move forwards and backwards, and beam frame 6 drives laser welding gun 8 to approach the joint part of cylindrical saw blade, and then laser welding control machine 7 controls laser welding gun 8 to carry out translational laser welding to the joint part of cylindrical saw blade, and after welding, beam frame 6 drives laser welding gun 8 to separate from the cylindrical saw blade, and the telescopic rod of hydraulic cylinder 16 drives lower pressure frame 19 to move downwards along the vertical slot of vertical plate 11, and lower pressure frame 19 drives the long rectangular protrusion of lower pressure block 23 to move downwards synchronously, and push spring 21 drives push cylinder 24 to move forwards along inner mould column 22 through the elastic force, and at this moment, the inclined plane structure of push frame 20 is attached to the long rectangular protrusion rear side upper edge of lower pressure frame 19 and moves forwards, and push cylinder 24 promotes the cylindrical saw blade nested on the outer surface of inner mould column 22 to move forwards along inner mould column 22, until the cylindrical saw blade is completely separated, and then falls into the loading box 10 relying on gravity, and the compression forming work of hole saw is completed.

[0031] The mounting mode, connection mode or setting mode of all the components above are common mechanical modes, such as welding, threaded connection, screw connection and the like, and the specific structure, model and coefficient index of all the components are self-owned technology, as long as the beneficial effects can be achieved, and implementation can be carried out. The welding displacement motor 5, the laser welding control machine 7, the laser welding gun 8, the pressing motor 13, the hydraulic oil supply station 15, the hydraulic cylinder 16 and the controller 25 are common devices on the market, and when purchased and used, they only need to be connected according to the instruction manual purchased together, and then used, so the description is not repeated here.

[0032] The technical scheme of the utility model is not limited to the scope of the utility model embodiments, and the technical content not described in the utility model is known technology.

Claims

1. A hole saw forming device, comprising a base plate; a hydraulic oil supply station is bolted to the upper side of the base plate, a controller is bolted to the upper side of the hydraulic oil supply station, the controller and the hydraulic oil supply station are connected by a wire, a material box is placed on the upper side of the base plate, a left support and a right support are bolted to the upper side of the base plate, a guide rod is welded to the top of the right support, a vertical plate is welded to the upper side of the base plate, support plates are welded to the front and rear sides of the vertical plate, and the base plate is welded to the lower side of the support plate; characterized in that: It also includes a beam frame, hydraulic cylinder, upper pressure block, and inner mold column; a welding displacement motor is installed on the rear side of the left support, and a threaded moving rod is installed on the motor shaft of the welding displacement motor, which is rotatably connected to the left support; a pressing motor is installed on the left side of the upright plate, and a double-threaded rod is installed on the motor shaft of the pressing motor, with a slide engaged on the outer side of the double-threaded rod, which is bolted to the upper pressure block; an upright plate is welded to the rear end of the inner mold column, a push spring is welded to the front side of the upright plate, a push cylinder is welded to the front end of the push spring, and a push frame is welded to the lower side of the push cylinder. A push cylinder is slidably connected to the outer side of the inner mold column; the hydraulic cylinder is bolted to the upper side of the base plate, and the hydraulic cylinder is connected to the hydraulic oil supply station through an oil pipe; a lower pressure frame is installed at the top of the telescopic rod of the hydraulic cylinder, and cuboid protrusions are provided on the left and right sides of the lower pressure frame; a lower pressure block is bolted to the upper side of the lower pressure frame; a laser welding control machine is installed on the upper side of the beam frame, and a laser welding gun is installed at the center of the front side of the beam frame; the laser welding gun and the laser welding control machine are connected through wires; the controller is connected to the welding displacement motor through wires, and the controller is connected to the pressing motor through wires.

2. The hole saw forming equipment as described in claim 1, characterized in that: The front side of the beam frame is provided with a threaded through hole that runs from front to back near the left end. The outer side of the threaded moving rod is threadedly engaged with the threaded through hole of the beam frame. The front side of the beam frame is provided with a through hole that runs from front to back near the right end. The guide rod is inserted into the through hole of the beam frame.

3. The hole saw forming equipment as described in claim 1, characterized in that: The number of upper pressure blocks is two sets, and each set of upper pressure blocks has a quarter-circular arc groove on its lower side.

4. The hole saw forming equipment as described in claim 1, characterized in that: The number of carriages is two sets, and the carriages are symmetrically distributed on the left and right. Each set of carriages has a threaded through hole that runs through the left and right near the rear end. The forward threaded end of the outer side of the bidirectional threaded rod is engaged with the threaded through hole of the right carriage, and the reverse threaded end of the outer side of the bidirectional threaded rod is engaged with the threaded through hole of the left carriage.

5. The hole saw forming equipment as described in claim 1, characterized in that: The front side of the upright plate has a vertically distributed longitudinal through groove at its center. The lower pressure frame is inserted inside the longitudinal through groove of the upright plate. There are two sets of transverse through grooves on the left and right sides of the longitudinal through groove of the upright plate. The two sets of slides are inserted into the two sets of transverse through grooves of the upright plate respectively. The upper and lower sides of the slides are attached to the inner side of the transverse through groove.

6. The hole saw forming equipment as described in claim 1, characterized in that: The upper side of the pressing block is a semi-circular groove.

7. The hole saw forming equipment as described in claim 1, characterized in that: The push frame has a U-shaped structure, and the lower pressure frame is embedded in the U-shaped structure of the push frame. The front side of the push frame has a sloping structure. The upper edge of the rear side of the cuboid protrusion on the left and right sides of the lower pressure frame of the sloping structure of the push frame is in contact with the sloping structure of the push frame.