A wide belt saw blade processing tooth base grinding machine

Abstract

This invention discloses a tooth grinding machine for wide-width band saw blade processing, including limiting plates and a workpiece processing mechanism. A saw blade body portion is inserted between two limiting plates, and each limiting plate has an inclined hole on its side. The inclined hole faces opposite directions to the tooth grooves on the saw blade body. The bottom end of the limiting plate extends into the material collection hopper. The advantages of this invention are: during the feeding process, the abrasive is also driven to rotate by the processing actuator, which can fully fill the gap formed between the annular surface in the middle of the processing actuator and the inner wall of the tooth groove, thus achieving the effect of abrasive grinding the inner wall of the tooth groove. The abrasive is fed in a state of simultaneous movement and rotation, resulting in a finer and smoother grinding surface; it fully utilizes the abrasive, reducing the number of times it needs to be added; and it can automatically adjust and position the tooth grooves on the saw blade body, allowing for rapid adjustment to the grinding state.

Description

Technical Field

[0001] This invention relates to the field of saw blade processing equipment technology, specifically a tooth bottom grinding machine for wide band saw blade processing. Background Technology

[0002] Wide band saw blades are mainly used for metal or wood processing. Their core advantages are high rigidity and good guidance, making them suitable for cutting large and thick materials. However, burrs on the bottom of the saw blade teeth are a hidden killer that leads to early abnormal failure of the saw blade and loss of processing quality control. Therefore, grinding the bottom of the teeth is essential in the saw blade processing process. However, since there are many teeth on the saw blade, manually grinding each one is labor-intensive and inefficient. Grinding machines are usually used. For example, in the prior art, application number CN202322776612.7 describes an automatic band saw blade grinding mechanism, which includes a frame. The frame is equipped with a band saw blade fixing mechanism for fixing the band saw blade; and grinding devices for grinding the sides of the band saw blade. The grinding devices are located on the outer and inner sides of a certain section of the band saw blade. The grinding device includes a fixing plate, a grinding wheel assembly, and a transverse moving assembly. The grinding wheel assembly is located on the fixing plate, and the transverse moving assembly is located on the frame. The transverse moving assembly moves the fixing plate closer to the band saw blade, thereby driving the grinding wheel assembly to grind the band saw blade. The band saw blade fixing mechanism moves the band saw blade sequentially between the two grinding devices.

[0003] However, the existing automatic band saw blade grinding mechanisms traditionally employ a grinding wheel to grind burrs on the tooth base. This requires a high degree of matching between the grinding wheel's shape and the tooth groove shape on the blade. However, the continuous wear of the grinding wheel leads to insufficient hardened contact grinding surface, which is detrimental to improving the quality of tooth base grinding. Furthermore, with a large number of saw blade teeth, frequent grinding wheel replacements are impractical, further complicating grinding wheel control and tooth base positioning. Therefore, to address these issues, a tooth base grinding machine for wide-width band saw blade processing is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a tooth grinding machine for processing wide band saw blades in order to solve the above-mentioned problems.

[0005] This invention achieves the above-mentioned objective through the following technical solution: a tooth grinding machine for wide band saw blade processing, comprising a frame, a saw blade body mounted on the frame, and a processing actuator. The processing actuator is used to grind the tooth grooves of the saw blade body. The processing actuator is characterized by having an abrasive feeding structure on its surface, which delivers granular abrasive to the tooth grooves. The processing actuator is connected to a drive mechanism and rotates within the tooth grooves, causing the granular abrasive to grind the inner wall of the tooth grooves. The frame is equipped with an adjustment mechanism, which includes an inclined hole. The processing actuator is connected to the drive mechanism through the inclined hole. The inclined direction of the inclined hole is opposite to the orientation of the tooth grooves. When the drive mechanism pushes the processing actuator to move along the inclined hole, the limiting effect of the tooth grooves on the processing actuator is converted into a force that pushes the saw blade body to move horizontally, achieving automatic adjustment to the next tooth groove.

[0006] In a further technical solution, the workpiece processing mechanism also includes a guide hole, a mounting bracket, and a guide plate. The guide hole is opened inside the other side port of the abrasive placement frame. A guide plate slides through the guide hole. One end of the guide plate is fixedly connected to the end face of one end of the side block. One end of the mounting bracket is fixedly connected to the side surface of one end of one of the side blocks.

[0007] In a further technical solution, abrasive placement frames are provided at both ends of the processing actuator. By switching the rotation direction of the processing actuator, the granular abrasive is circulated and transported between the two abrasive placement frames.

[0008] In a further technical solution, the inner wall of the abrasive placement frame slides in contact with the two side walls of the guide plate and the two side walls of the side block, and the corresponding part of the abrasive placement frame is fixedly connected to the cylinder end of the first cylinder. The outlet of the abrasive placement frame extends into the outlet of the discharge pipe, and the outlet of the other end of the discharge pipe is connected to the abrasive feeding pump.

[0009] In a further technical solution, the other two parts of the saw blade body are vertically placed on the processing table through the saw blade tooling part, and the bottom of the long frame in the saw blade tooling part is connected to the second cylinder located on the processing table.

[0010] In a further technical solution, the saw blade tooling part also includes a side pressure roller, a connecting screw, and a bottom support roller. A group of bottom support rollers are distributed and installed in the long frame, and a rectangular hole is opened at the bottom of the long frame between the bottom support rollers. A connecting screw is inserted into both ends of the rectangular hole, and the connecting screw is threadedly connected to the screw hole located in the middle of the side pressure roller.

[0011] In a further technical solution, the bottom end of the connecting screw is rotatably connected to the corresponding part of the processing table through a bearing, and the roller surface of the side pressure roller is in rolling contact with the side of the saw blade body.

[0012] In a further technical solution, the bottom support roller is composed of two cones symmetrically mounted on the same shaft, and the conical surfaces of the two cones roll in contact with the two side edges of the bottom of the saw blade body.

[0013] In a further technical solution, the abrasive feeding structure is a spiral groove or a spiral convex strip, and the distribution of the abrasive feeding structure is not limited to one type. The processing actuator is preferably a rod structure, and the middle part of the processing actuator never contacts the inner wall of the tooth groove during the grinding operation.

[0014] The beneficial effects of this invention are: The abrasive is fed through an abrasive feed structure located on the rotating machining actuator. The abrasive passes through inclined holes and tooth grooves and is moved from one abrasive placement frame to another. During the feeding process, the granular abrasive is also rotated by the machining actuator. This fully fills the gap between the annular surface in the middle of the machining actuator and the inner wall of the tooth groove, thus enabling the granular abrasive to perform abrasive grinding on the inner wall of the tooth groove. The granular abrasive is fed in a way that moves and rotates at the same time, which replaces the contact grinding method of hardened grinding wheels. The ground surface is more delicate and smooth. By rotating the processing actuator with the abrasive feeding structure in both directions, the abrasive moves alternately between the two abrasive placement frames, making full use of the abrasive added in the same batch, reducing the number of times abrasive is added, and at the same time, a small portion of the abrasive that falls into the discharge collection hopper for recycling. By utilizing the horizontal limiting effect formed between the tooth groove and the inserted processing actuator, and in conjunction with the first cylinder to tilt and pull the connected processing actuator up and down, the tooth groove on the saw blade body is automatically adjusted and positioned. At the same time, the next tooth groove is pushed back into position through contact, which can quickly adjust and enter the grinding process state. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the workpiece processing mechanism of the present invention; Figure 3 for Figure 2 Enlarged view of the intermediate connection structure; Figure 4 for Figure 2 Schematic diagram of the connection structure of the abrasive placement frame; Figure 5 1. A schematic diagram of the saw blade tooling structure of the present invention; Figure 6 , Figure 7 and Figure 8 These are schematic diagrams showing three different forms of abrasive feed structure distribution on the machining actuator; Figure 9 This diagram illustrates the positional relationship between the processing actuator, the granular abrasive, and the tooth groove in this invention. Figure 10 This is a schematic diagram illustrating the positional change between the machining actuator and the tooth groove in this invention. Figure 1 ; Figure 11 This is a schematic diagram illustrating the positional change between the machining actuator and the tooth groove in this invention. Figure 2 ; Figure 12 This is a schematic diagram illustrating the positional change between the machining actuator and the tooth groove in this invention. Figure 3 .

[0018] In the diagram: 1. Workpiece processing mechanism; 110. Processing actuator; 111. Abrasive feeding structure; 120. Abrasive placement frame; 121. Guide hole; 130. Motor; 140. Mounting bracket; 150. Side stop block; 151. Guide plate; 160. First cylinder; 2. Processing table; 3. Limiting plate; 310. Inclined hole; 4. Material collection hopper; 5. Abrasive feeding pump; 510. Discharge pipe; 6. L-shaped block; 7. Cabinet; 8. Control unit; 9. Saw blade tooling unit; 910. Long frame; 911. Rectangular hole; 920. Side pressure roller; 930. Connecting screw; 940. Bottom support roller; 10. Second cylinder; 11. Control touch screen; 12. Bracket; 13. Saw blade body; 1310. Tooth groove; 14. Granular abrasive. Detailed Implementation

[0019] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Please see Figure 1-12 As shown, a tooth grinding machine for wide band saw blade processing includes a limiting plate 3 and a workpiece processing mechanism 1. A saw blade body 13 is inserted between the two limiting plates 3, and each limiting plate 3 has an inclined hole 310 on its side. The inclined hole 310 faces the opposite direction to the tooth groove 1310 on the saw blade body 13. The bottom end of the limiting plate 3 extends into the material collection hopper 4. Limiting plate 3: The side wall between the two limiting plates 3 slides in contact with the surface of the saw blade body 13, and at the same time, it cooperates with the saw blade tooling part 9 to provide tooling assistance to both sides of the saw blade body 13, ensuring the stability of the tooth groove 1310 on the saw blade body 13 in the two inclined holes 310. The saw blade body 13 is preferably made of 65Mn spring steel with a width of 50mm, a thickness of 1.2mm, and a tooth pitch of 10mm. The tooth groove 1310 has a depth of 5mm, a width of 5mm, and the bottom of the tooth groove is arc-shaped with a radius of 2.5mm. It should be noted that the saw blade parameters given in this embodiment are only illustrative examples. This invention is applicable to wide band saw blades of various sizes. For saw blades of different sizes, those skilled in the art can adjust the middle diameter and length of the processing actuator according to the actual tooth groove size, as long as the gap δ and the abrasive particle size d satisfy the relationship δ=(3~5)×d.

[0023] Inclined hole 310: First, the bottom of the openings of the two inclined holes 310 at symmetrical positions defines the tooth groove 1310 for positioning; Second, the middle part of the machining actuator 110 is adjusted by moving and entering the tooth groove 1310 through the inclined hole 310; Third, the inclined hole 310 and the tooth groove 1310 located on the saw blade body 13 face opposite directions, so that the machining actuator 110 moving along the inclined hole 310 forms a horizontal pushing and pulling force on the saw blade body 13. The tilt angle α of the tilted hole 310 is 30°~60°, preferably 45°.

[0024] The method for determining the tilt angle α is as follows: α = arctan(H / L) in: H = Tooth groove height L = tooth spacing When the tooth height is 5mm and the tooth spacing is 10mm, the tilt angle α ≈ 26.6°, so we take 30°.

[0025] The tilting direction of the inclined hole 310 is opposite to the tilting direction of the tooth groove 1310. This angle design enables the machining actuator 110 to generate a suitable horizontal thrust on the tooth groove 1310 when it tilts and moves under the drive of the cylinder, thereby realizing the automatic adjustment function.

[0026] Drop collection hopper 4: collects a small portion of abrasive that falls between the two limiting plates 3. At the same time, the bottom of the drop collection hopper 4 is connected to the inlet of the abrasive feeding pump 5 through a pipe so that the abrasive feeding pump 5 can be started to transport the abrasive through the discharge pipe 510 to the abrasive placement frame 120. The workpiece processing mechanism 1 includes a processing actuator 110 and two abrasive placement frames 120. The surface of the processing actuator 110 is provided with an abrasive feeding structure 111, and the two sides of the middle part of the processing actuator 110 are respectively located in the abrasive inside the two abrasive placement frames 120. The middle part of the processing actuator 110 is placed in the tooth groove 1310. One side port of the two abrasive placement frames 120 is fixedly connected to the edge of the opening of the two inclined holes 310. The end shafts at both ends of the processing actuator 110 are rotatably connected to one end of the two side blocks 150 through bearings, and one end shaft is connected to the output shaft of the motor 130 through a coupling. The other end of each side block 150 is connected to a first cylinder 160. The specific operation of workpiece processing mechanism 1 is as follows: by Figure 3 In the state shown, the motor 130 drives the connected machining actuator 110 to rotate at a set operating speed; Specifically, the speed n of motor 130 is 100~500 rpm, preferably 300 rpm.

[0027] Methods for determining rotational speed: n = (60 × v) / (π × D) in: v = linear velocity of the workpiece surface = 0.5~2m / s D = Diameter of the center of the machined part (m) When D=0.004m and v=1m / s, n≈4775 revolutions per minute. In practice, n=300 revolutions per minute is selected, which corresponds to v≈0.063m / s.

[0028] The grinding time t for a single tooth groove is 30~120 seconds, preferably 60 seconds.

[0029] The grinding time is determined based on factors such as tooth groove depth, abrasive particle size, and rotation speed.

[0030] The rotating machining actuator 110 is surrounded by an abrasive, i.e., granular abrasive 14, such as... Figure 9 As shown, the particulate abrasive 14 is fed through an abrasive feed structure 111 (such as) located on the rotating machining actuator 110. Figure 6 and Figure 7 The abrasive 14 moves from one abrasive placement frame 120 to another through the inclined hole 310 and tooth groove 1310. At the same time, during the feeding movement, the granular abrasive 14 is also driven to rotate by the processing actuator 110. This can fully fill the gap formed between the annular surface in the middle of the processing actuator 110 and the inner wall of the tooth groove 1310, so that the granular abrasive 14 can perform a grinding treatment on the inner wall of the tooth groove 1310. The granular abrasive 14 is fed in a state of moving and being rotated at the same time, which replaces the contact grinding method of hardened grinding wheel, and the grinding surface is more delicate and smooth. The granular abrasive 14 is preferably a silicon carbide or alumina abrasive, with a particle size range of 100 mesh to 300 mesh (particle size 0.05 mm to 0.15 mm) and a Mohs hardness of 9 to 9.5.

[0031] Principles for selecting abrasive particle size: d = (0.1~0.3) × δ in: d = abrasive particle size δ = clearance between the machining actuator and the inner wall of the tooth groove When the gap δ=0.5mm, the abrasive particle size d=0.05~0.15mm, corresponding to 100 mesh~300 mesh. This particle size design ensures that the abrasive can fully fill the gap, while avoiding clogging caused by excessively large particles.

[0032] The grinding mechanism mentioned above is as follows: When the machining actuator 110 rotates, it drives the granular abrasive 14 filled in the gap to rotate.

[0033] Under the action of centrifugal force and friction, the abrasive particles generate rolling friction on the inner wall of the tooth groove 1310: the abrasive particles roll on the surface of the inner wall of the tooth groove to remove surface burrs; micro-cutting: the edges of the abrasive particles perform micro-cutting on the inner wall of the tooth groove; polishing: the mutual extrusion between the abrasive particles polishes the inner wall of the tooth groove.

[0034] Calculation of grinding force F: F=μ×N in: μ = Coefficient of friction between the abrasive and the inner wall of the tooth groove = 0.3~0.5 N = Normal pressure of the abrasive compound on the inner wall of the tooth groove = m × ω² × r m = mass of a single abrasive particle ω = angular velocity of the workpiece r = radius of the center of the machining component Compared to grinding wheels, the advantages of grinding with granular abrasives are: Flexible contact: The abrasive particles can adapt to the shape of the inner wall of the tooth groove, resulting in more thorough contact; No wear: The abrasive particles can be replenished in time after wear, maintaining a stable grinding effect; Good surface quality: The combined action of micro-cutting and polishing results in lower surface roughness.

[0035] During the gradual grinding process of the tooth groove 1310, most of the granular abrasive 14 enters another abrasive placement frame 120, and a small portion of the granular abrasive 14 falls from the gap between the limiting plate 3 and the saw blade body 13 into the material collection hopper 4. Thus, when the next tooth groove 1310 is in the grinding position, the processing actuator 110 resets again and is surrounded by granular abrasive 14. At this time, the reverse motor 130 drives the processing actuator 110 to rotate in the opposite direction, so that the granular abrasive 14 accumulated in the other abrasive placement frame 120 passes through the inner wall of the tooth groove 1310 and enters the previous abrasive placement frame 120. The purpose is to make full use of the abrasive added in the same batch by rotating the processing actuator 110 with the abrasive feeding structure 111 in both directions, so that the abrasive moves alternately between the two abrasive placement frames 120, reducing the number of times abrasive is added. At the same time, a small portion of the fallen abrasive enters the material collection hopper 4 for recycling. When grinding of the tooth root of tooth groove 1310(a) is completed, and grinding of the tooth root of the next tooth groove 1310(b) is required, in combination with Figure 3 , Figure 10 , Figure 11 and Figure 12 The specific process is as shown: The first cylinder 160 retracts, causing the machining actuator 110, connected via the side stop 150, to tilt upwards along the inclined hole 310. Since the inclined hole 310 and the tooth groove 1310 on the saw blade body 13 face opposite directions, one end of the groove 1310(a) forms a limiting state on the middle of the machining actuator 110. Thus, the upwardly moving machining actuator 110 also exerts a horizontal thrust on the tooth groove 1310(a), causing the saw blade body 13 to move to the left until the tooth groove 1310(a) separates from the machining actuator 110. After the saw blade body 13 moves to the left... Figure 11After reaching the indicated state, the first cylinder 160 extends, causing the machining actuator 110 connected via the side stop 150 to tilt downwards, so that the middle part of the machining actuator 110 hooks with one end of the groove corresponding to the tooth groove 1310(b). As the machining actuator 110 continues to tilt downwards, until the middle part of the machining actuator 110 and the tooth groove 1310(b) are in a certain position... Figure 12 In the state shown, the motor 130 is run again to drive the machining actuator 110 to rotate and perform grinding on the tooth groove 1310 (b). The purpose is to use the horizontal limit formed between the tooth groove 1310 and the inserted machining actuator 110, and in conjunction with the first cylinder 16 to tilt and pull the connected machining actuator 110 up and down, so as to automatically adjust and position the tooth groove 1310 on the saw blade body 13, and at the same time, to push the next tooth groove 1310 back into place, so as to quickly adjust and enter the grinding state.

[0036] The working principle of the automatic position adjustment mechanism: Step 1: The machining actuator 110 is moved upward along the inclined hole 310 at an angle of α=45°, the cylinder stroke L=10mm, the upward movement height h=L×sinα=7.07mm, and the horizontal displacement s=L×cosα=7.07mm. Step 2: The machining actuator 110 applies a horizontal thrust to the tooth groove 1310(a). Since the groove opening of the tooth groove 1310(a) limits the machining actuator 110, when the machining actuator 110 tilts upward, it applies a horizontal component force to the tooth groove 1310(a). The horizontal thrust F_h = F_cylinder × cosα, where F_cylinder = cylinder thrust = 100N, then F_h = 100 × cos45° = 70.7N; Step 3: The saw blade body 13 moves to the left. Under the action of the horizontal thrust F_h, the saw blade body 13 overcomes the friction and moves to the left. The moving distance = tooth groove spacing = 10mm. Step 4: The machining actuator 110 tilts and moves downward to hook with the next tooth groove 1310(b). The cylinder extends, the machining actuator 110 tilts and moves downward, and the middle of the machining actuator 110 enters the tooth groove 1310(b) to complete the automatic positioning.

[0037] Combination Figure 2 , Figure 3 and Figure 4As shown, the workpiece processing mechanism 1 further includes a guide hole 121, a mounting bracket 140, and a guide plate 151. The guide hole 121 is opened inside the other side port of the abrasive placement frame 120. The guide plate 151 slides through the guide hole 121. One end of the guide plate 151 is fixedly connected to the end face of one end of the side block 150. One end of the mounting bracket 140 is fixedly connected to the side of one end of the side block 150. The inner wall of the abrasive placement frame 120 slides in contact with the two side walls of the guide plate 151 and the two side walls of the side block 150, respectively. The corresponding part of the abrasive placement frame 120 is fixedly connected to the cylinder end of the first cylinder 160. Abrasive placement frame 120: Used to place abrasive, with the frame opening tilted upwards and the internal space deep. At the same time, the side block 150 that slides in contact with the inner wall of the abrasive placement frame 120 forms a structural space to prevent abrasive from overflowing. Guide plate 151: When the first cylinder 160 pulls the side block 150 upward, the guide plate 151 connected to the side block 150 passes through the guide hole 121 and gradually enters the abrasive placement frame 120. The side walls of the guide plate 151 slide in contact with the inner wall of the abrasive placement frame 120, thereby filling the gap left by the side block 150 and preventing the abrasive from overflowing. At the same time, it guides the side block 150.

[0038] The abrasive placement frame 120 has a discharge pipe 510 at one end inserted into it, and the discharge pipe 510 at the other end is connected to the abrasive feeding pump 5. The inlet of the abrasive feeding pump 5 is connected to the bottom of the discharge collection hopper 4 through a conduit. The abrasive feeding pump 5 is installed on one side of the cabinet 7, and a processing table 2 is welded to the top of the cabinet 7. The discharge pipe 510, the abrasive feeding pump 5, and the discharge collection hopper 4 form a feeding structure for recycling and reuse of the abrasive.

[0039] The cabinet 7 is equipped with a control unit 8, which consists of at least a pneumatic system and an electronic control system. The control touch screen 11, which is electrically connected to the control unit 8, is installed on the top of the bracket 12, and the bottom of the bracket 12 is fixedly connected to the other side of the cabinet 7. The control unit 8 consists of at least a pneumatic system and an electronic control system, and is used to control the operation of each actuator; The touchscreen 11 is used for manual operation of setting parameters, starting / stopping, and other functions.

[0040] like Figure 1As shown, the opening of the material collection hopper 4 is located on the middle surface of the processing table 2, and the front and rear of the middle part of the processing table 2 are fixedly connected to the middle of the side of the two limiting plates 3 respectively by L-shaped blocks 6. The other two parts of the saw blade body 13 are vertically placed on the processing table 2 by the saw blade tooling part 9. The bottom of the long frame 910 in the saw blade tooling part 9 is connected to the second cylinder 10 located on the processing table 2.

[0041] like Figure 5 As shown, the saw blade tooling part 9 also includes a side pressure roller 920, a connecting screw 930, and a bottom support roller 940. A set of bottom support rollers 940 are distributed and installed in the long frame 910, and a rectangular hole 911 is opened at the bottom of the long frame 910 between the bottom support rollers 940. A connecting screw 930 is inserted into both ends of the rectangular hole 911. The connecting screw 930 is threadedly connected to the screw hole located in the middle of the side pressure roller 920. The bottom end of the connecting screw 930 is rotatably connected to the corresponding part of the processing table 2 through a bearing. The roller surface of the side pressure roller 920 is in rolling contact with the side of the saw blade body 13. The second cylinder 10 extends and retracts to push and pull the connected long frame 910 up and down, so that the bottom support roller 940 lifts the bottom of the saw blade body 13, while the distributed side pressure rollers 920 roll and contact the sides of the saw blade body 13, realizing the tooling positioning function of the saw blade body 13, ensuring the accuracy and stability of the subsequent positioning of the saw blade body 13, and also adjusting the positional relationship between the tooth groove 1310 and the inclined hole 310.

[0042] The bottom support roller 940 consists of two cones symmetrically mounted on the same shaft, and the conical surfaces of the two cones roll into contact with the two side edges of the bottom of the saw blade body 13, providing stability for supporting the bottom of the saw blade, and is also suitable for saw blades of different thicknesses.

[0043] like Figure 6 , Figure 7 and Figure 8 As shown, the abrasive feeding structure 111 is not limited to the two structural forms of spiral groove and spiral convex strip, and the distribution form of the abrasive feeding structure 111 is not limited to one. The processing actuator 110 is preferably a rod structure, and the middle part of the processing actuator 110 does not contact the inner wall of the tooth groove 1310 during the grinding operation. The relationship between the diameter D of the middle part of the machining actuator 110 and the width W of the inner wall of the tooth groove 1310 is as follows: D=W-2δ in: δ = unilateral gap = (3~5) × d d = abrasive particle size For example: When the width of the inner wall of the tooth groove is W=5mm, When the abrasive particle size d = 0.1 mm, The unilateral gap δ = 0.3~0.5mm. The diameter D of the center of the machined part is 5 - 2 × (0.3~0.5) = 4.0~4.4 mm.

[0044] Clearance tolerance: ±0.05mm.

[0045] like Figure 6 and Figure 7 The abrasive feeding structure 111, when rotating, can deliver abrasive from one place to another. Figure 8 The abrasive feeding structure 111 in the middle can gather the abrasive from two places to the middle in the rotating state, and then rotate in the opposite direction to diffuse the abrasive to two places. In summary, it can meet the grinding needs under different conditions and increase the diversity of grinding methods.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tooth grinding machine for processing wide band saw blades, characterized in that: The assembly includes a workpiece processing mechanism (1), a frame, a saw blade body (13) mounted on the frame, and a processing actuator (110). The processing actuator (110) is used to grind the tooth grooves (1310) of the saw blade body (13). The surface of the processing actuator (110) is provided with an abrasive feeding structure (111). The abrasive feeding structure (111) is used to deliver granular abrasive (14) into the tooth grooves (1310). The processing actuator (110) is connected to a drive mechanism and rotates within the tooth grooves (1310). The rotation causes the granular abrasive (14) to grind the inner wall of the tooth grooves (1310). The frame is provided with an adjustment mechanism, which includes an inclined hole (310). The processing actuator (110) is connected to the drive unit through the inclined hole (310). The inclined direction of the inclined hole (310) is opposite to the orientation of the tooth groove (1310). When the drive unit pushes the processing actuator (110) to move along the inclined hole (310), the limiting effect of the tooth groove (1310) on the processing actuator (110) is converted into a force that pushes the saw blade body (13) to move horizontally, thereby realizing automatic adjustment to the next tooth groove.

2. The tooth root grinding machine for wide band saw blade processing according to claim 1, characterized in that: The processing actuator (110) is provided with abrasive placement frames (120) at both ends. By switching the rotation direction of the processing actuator (110), the granular abrasive (14) is circulated between the two abrasive placement frames (120).

3. The tooth root grinding machine for wide band saw blade processing according to claim 2, characterized in that: The workpiece processing mechanism (1) further includes a guide hole (121), a mounting bracket (140), and a guide plate (151). The guide hole (121) is opened inside the other side port of the abrasive placement frame (120). The guide plate (151) slides through the guide hole (121). One end of the guide plate (151) is fixedly connected to the end face of one end of the side block (150). One end of the mounting bracket (140) is fixedly connected to the side side of one end of one of the side blocks (150).

4. The tooth root grinding machine for wide band saw blade processing according to claim 3, characterized in that: The inner wall of the abrasive placement frame (120) is in sliding contact with the two side walls of the guide plate (151) and the two side walls of the side block (150), and the corresponding part of the abrasive placement frame (120) is fixedly connected to the cylinder end of the first cylinder (160). The outlet of the discharge pipe (510) extends into the abrasive placement frame (120), and the outlet of the other end of the discharge pipe (510) is connected to the abrasive feeding pump (5).

5. A tooth root grinding machine for wide band saw blade processing according to claim 1, characterized in that: The other two parts of the saw blade body (13) are vertically placed on the processing table (2) through the saw blade tooling part (9), and the bottom of the long frame (910) in the saw blade tooling part (9) is connected to the second cylinder (10) located on the processing table (2).

6. A tooth grinding machine for processing wide band saw blades according to claim 5, characterized in that: The saw blade tooling part (9) also includes a side pressure roller (920), a connecting screw (930) and a bottom support roller (940). A set of bottom support rollers (940) are distributed and installed in the long frame (910). A rectangular hole (911) is opened at the bottom of the long frame (910) between the bottom support rollers (940). A connecting screw (930) is inserted into both ends of the rectangular hole (911). The connecting screw (930) is threadedly connected to the screw hole located in the middle of the side pressure roller (920).

7. A tooth grinding machine for processing wide band saw blades according to claim 6, characterized in that: The bottom end of the connecting screw (930) is rotatably connected to the corresponding part of the processing table (2) through a bearing, and the roller surface of the side pressure roller (920) is in rolling contact with the side of the saw blade body (13).

8. A tooth root grinding machine for wide band saw blade processing according to claim 6, characterized in that: The bottom roller (940) consists of two cones symmetrically mounted on the same shaft, and the cone surfaces of the two cones roll in contact with the two side edges of the bottom of the saw blade body (13).

9. A tooth root grinding machine for wide band saw blade processing according to claim 1, characterized in that: The abrasive feeding structure (111) is a spiral groove or a spiral convex strip, and the distribution of the abrasive feeding structure (111) is not limited to one type. The processing actuator (110) is a rod structure, and the middle part of the processing actuator (110) never contacts the inner wall of the tooth groove (1310) during the grinding operation.

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