A grinding machine for alloy saw blades

Abstract

This utility model relates to an alloy saw blade grinding machine, including a base and a saw blade. A guiding mechanism is provided on the base. The machine also includes: a power box mounted on the base, with a grinding device and a pushing device mounted on the power box. The bottom of the pushing device intermittently engages between two teeth of the saw blade via a pushing rod, pushing the saw blade forward by one tooth's distance; a first U-shaped frame mounted on the power box; clamping plates slidably mounted on the first U-shaped frame, with two clamping plates located on either side of the saw blade; and a clamping mechanism mounted on the first U-shaped frame. During the pullback of the pushing rod, the clamping mechanism causes the two clamping plates to clamp the saw blade, and the grinding device completes the grinding work during this period. During the forward push of the pushing rod, the clamping mechanism causes the two clamping plates to release the saw blade. In this utility model, when the grinding device presses down to grind the teeth of the saw blade, the clamping mechanism firmly clamps the saw blade, maintaining the stability of the saw blade during grinding and preventing damage to the teeth.

Description

Technical Field

[0001] This utility model relates to the field of saw blade processing equipment, specifically to an alloy saw blade grinding machine. Background Technology

[0002] After the saw blade is toothed, its teeth need to be ground, which requires a tooth grinding machine. A saw blade tooth grinding machine is a special equipment used to grind the teeth of alloy saw blades. It is mainly used in the metal processing industry to perform precision grinding on the teeth of alloy saw blades to achieve the required geometry and surface roughness, or to repair worn or damaged parts of the saw blade teeth and restore its cutting performance.

[0003] Chinese Patent No. CN2236387Y discloses a band saw blade grinding machine for grinding the teeth of band saws used for processing wood. It consists of a base frame, electric motor, worm gear, support frame, grinding wheel, eccentric push-lifting device, and eccentric pulling device. The band saw blade is mounted on the base frame and fixed in place by the support frame; the push rod of the eccentric push-lifting device pushes the band saw blade forward in tooth pitch rhythm, while the push rod drives the grinding wheel up and down for grinding; the eccentric pulling device, coaxially driven with the eccentric push-lifting device, synchronously pulls the band saw blade forward. The machine features a simple structure, no castings, no need for multi-stage transmission, is not prone to wear, consumes little power, and is inexpensive.

[0004] However, the above-disclosed technical solution has the following shortcomings: the push rod intermittently pushes the saw blade to move and grinds the teeth, lacks a positioning mechanism for the saw blade, the push rod cannot provide effective fixation for the saw blade, and there is a risk of the saw blade slipping during the grinding process, which causes the grinding wheel to wear down the teeth of the saw blade and result in scrap. Utility Model Content

[0005] The purpose of this invention is to address the problem of ineffective positioning of saw blades during the grinding stage in the prior art, and to propose an alloy saw blade grinding machine.

[0006] The technical solution of this utility model: An alloy saw blade grinding machine, comprising a base and a saw blade, wherein a guide mechanism is provided on the base, the saw blade moves vertically with the teeth facing upwards, and further comprising:

[0007] The power box is mounted on the base. The power box is equipped with a grinding device and a pushing device. The bottom of the pushing device intermittently engages between two teeth of the saw blade via a pushing rod and pushes the saw blade forward by one tooth's distance.

[0008] The first U-shaped frame is mounted on the power box;

[0009] Two clamps are provided, both of which are slidably mounted on the first U-shaped frame, and the two clamps are located on both sides of the saw blade.

[0010] The clamping mechanism is set on the first U-shaped frame. During the push rod pull-back process, the clamping mechanism drives the two clamping plates to clamp the saw blade, and the grinding device completes the grinding work during this period. During the push rod push-forward process, the clamping mechanism drives the two clamping plates to release the saw blade.

[0011] Preferably, the guiding mechanism includes multiple support seats disposed on the base, and two guide plates disposed on the support seats, the two guide plates respectively contacting the two sides of the saw blade.

[0012] Preferably, a strip groove is provided at the bottom of the first U-shaped frame, and the bottom of both clamping plates are slidably connected to the inner wall of the strip groove. Two fixing plates are provided on the inner wall of the first U-shaped frame, and the push rod is located between the two fixing plates. Pressure sensors are provided on the opposite end faces of the two fixing plates.

[0013] Preferably, when the push rod is pushed forward to its maximum distance and contacts the pressure sensor on the front side, the clamping mechanism drives the two clamping plates to clamp the saw blade. When the push rod is pulled back to its maximum distance and contacts the pressure sensor on the rear side, the clamping mechanism drives the two clamping plates to release the saw blade.

[0014] Preferably, the clamping mechanism includes a limiting block, a second U-shaped frame, and a lifting device; the groove on both sides of the saw blade is provided with inclined sides, the limiting block is slidably disposed on the inclined sides, and a through groove is provided on the limiting block; the U-shaped groove of the second U-shaped frame has an upward opening, and the vertical plates on both sides pass through the two through grooves respectively, and two baffles are provided side by side on each of the two vertical plates, and the two baffles contact the upper and lower sides of the limiting block respectively; the lifting device is vertically disposed at the bottom of the first U-shaped frame, and the bottom extension end of the lifting device is connected to the bottom of the second U-shaped frame.

[0015] Preferably, a second sliding groove is provided on the inclined side, and an inclined surface parallel to the inclined side is provided on the limiting block. A second sliding rail is provided on the inclined surface, and the second sliding rail cooperates with the second sliding groove.

[0016] Preferably, when the push rod contacts the front pressure sensor, the lifting device drives the second U-shaped frame to descend; when the push rod contacts the rear pressure sensor, the lifting device drives the second U-shaped frame to rise.

[0017] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: when the grinding device presses down to grind the teeth of the saw blade, the saw blade can be firmly clamped by the clamping mechanism, which maintains the stability of the saw blade during grinding. The precise positioning of the saw blade can effectively prevent the grinding device and the teeth of the saw blade from shifting position and prevent damage to the teeth. Attached Figure Description

[0018] Figure 1 This is a perspective view of one embodiment of the present invention.

[0019] Figure 2 for Figure 1A schematic diagram of the structure after removing the grinding device.

[0020] Figure 3 This is a cross-sectional view of the clamping mechanism.

[0021] Reference numerals: 1. Base; 2. Support base; 3. Guide plate; 4. Saw blade; 5. Grinding device; 6. Pushing device; 7. Power box; 8. Push rod; 9. Connecting plate; 10. First U-shaped frame; 11. Clamping plate; 12. First slide rail; 13. Strip groove; 14. Limiting block; 15. Bevel; 16. Second slide rail; 17. Second U-shaped frame; 18. Baffle; 19. Lifting device; 20. Through groove; 21. Fixing plate; 22. Pressure sensor. Detailed Implementation

[0022] Example 1

[0023] like Figures 1-3 As shown, the present invention proposes an alloy saw blade grinding machine, including a base 1 and a saw blade 4. A guide mechanism is provided on the base 1. The saw blade 4 moves vertically with its teeth facing upwards. The guide mechanism includes multiple support seats 2 mounted on the base 1, and two guide plates 3 mounted on the support seats 2. The two guide plates 3 respectively contact the two sides of the saw blade 4. In an optional embodiment, two support seats 2 are provided, and the machine further includes:

[0024] A power box 7 is mounted on the base 1. A grinding device 5 and a pushing device 6 are mounted on the power box 7. The bottom of the pushing device 6 intermittently engages with the two teeth of the saw blade 4 via a pushing rod 8, pushing the saw blade 4 forward by one tooth's distance. The power box 7 contains a power structure that drives the grinding device 5 and the pushing device 6. Both the grinding device 5 and the pushing device 6 are existing technologies. During operation, the pushing rod 8 first pushes the saw blade 4 forward by one tooth's distance, then the grinding device 5 grinds one tooth. Next, the saw blade 4 is pulled backward, and the pushing rod 8 engages with the root of the next tooth. Then the pushing rod 8 pushes forward another tooth, and the grinding device 5 grinds the next tooth. This cycle repeats. The structure of the grinding device 5 and the pushing device 6 can be found in the annular band saw blade grinding machine disclosed in Chinese Patent No. CN209477430U, which will not be described in detail here.

[0025] The first U-shaped frame 10 is mounted on the power box 7. In this embodiment, a connecting plate 9 is provided on the side of the first U-shaped frame 10. The connecting plate 9 is connected to the power box 7. The U-shaped groove opening on the first U-shaped frame 10 faces upward.

[0026] Two clamping plates 11 are provided, and both clamping plates 11 are slidably mounted on the first U-shaped frame 10. The two clamping plates are located on both sides of the saw blade 4.

[0027] And a clamping mechanism is set on the first U-shaped frame 10. During the pullback of the push rod 8, the clamping mechanism drives the two clamping plates 11 to clamp the saw blade 4 and the grinding device 5 completes the grinding work during this period. During the push forward of the push rod 8, the clamping mechanism drives the two clamping plates 11 to release the saw blade 4.

[0028] Example 2

[0029] like Figure 3 As shown, the present invention proposes an alloy saw blade grinding machine. Compared with Embodiment 1, this embodiment details the structure of the first U-shaped frame 10.

[0030] The bottom of the first U-shaped frame 10 is provided with a strip groove 13, and the bottom of the two clamping plates 11 are slidably connected to the inner wall of the strip groove 13. Specifically, the inner walls of the opposite sides of the strip groove 13 are provided with first sliding grooves, and the two sides of the clamping plates 11 are provided with first sliding rails 12. The first sliding rails 12 cooperate with the first sliding grooves. The inner wall of the first U-shaped frame 10 is provided with two fixing plates 21, and the push rod 8 is located between the two fixing plates 21. Pressure sensors 22 are provided on the opposite end faces of the two fixing plates 21.

[0031] When the push rod 8 is pushed forward to its maximum distance and contacts the pressure sensor 22 on the front side, the clamping mechanism drives the two clamping plates 11 to clamp the saw blade 4. When the push rod 8 is pulled back to its maximum distance and contacts the pressure sensor 22 on the rear side, the clamping mechanism drives the two clamping plates 11 to release the saw blade 4.

[0032] Example 3

[0033] like Figure 3 As shown, this utility model proposes an alloy saw blade grinding machine. Compared with Embodiment 1, this embodiment details the structure of the clamping mechanism.

[0034] The clamping mechanism includes a limiting block 14, a second U-shaped frame 17, and a lifting device 19; the strip groove 13 is provided with inclined sides 15 on the groove walls on both sides of the saw blade 4, the limiting block 14 is slidably disposed on the inclined sides 15, and a through groove 20 is provided on the limiting block 14; the U-shaped groove opening of the second U-shaped frame 17 faces upward, and the vertical plates on both sides pass through the two through grooves 20 respectively, and two baffles 18 are arranged side by side on both vertical plates, and the two baffles 18 contact the upper and lower sides of the limiting block 14 respectively; the lifting device 19 is vertically disposed at the bottom of the first U-shaped frame 10, and the bottom extension end of the lifting device 19 is connected to the bottom of the second U-shaped frame 17, and the lifting device 19 is a cylinder or a hydraulic cylinder.

[0035] A second slide groove is provided on the inclined side 15, and an inclined surface parallel to the inclined side 15 is provided on the limiting block 14. A second slide rail 16 is provided on the inclined surface, and the second slide rail 16 cooperates with the second slide groove.

[0036] When the push rod 8 contacts the front pressure sensor 22, the lifting device 19 drives the second U-shaped frame 17 to descend. When the push rod contacts the rear pressure sensor 22, the lifting device 19 drives the second U-shaped frame 17 to rise.

[0037] In addition, a control system is also installed on the base 1. The control system is connected to the pressure sensor 22 for signal transmission, and is also connected to the pushing device 6, the grinding device 5, and the lifting device 19 for control. The control system controls the various power mechanisms to cooperate in their actions to complete the automated gear grinding operation. The connection methods between the control system and the pressure sensor 22, the grinding device 5, the pushing device 6, and the lifting device 19 are all common electrical connections and do not involve technical improvements, so they will not be described in detail here.

[0038] In summary, when this utility model is in use, the saw blade 4 passes through the two guide plates 3, remains vertical with its teeth facing upwards, and the pushing device 6 pushes it intermittently, continuously pushing the saw blade 4 forward one tooth's distance each time. Specifically, when the pushing rod 8 is pushed forward to its maximum distance, the pushing rod 8 contacts the pressure sensor 22 on the front side. The control system collects the pressure signal from the pressure sensor 22 on the front side, and the control system controls the lifting device 19 to move the second U-shaped frame 17 downwards, pulling down the limiting block 14. Under the restriction of the inclined side 15, the two limiting blocks 14 move closer to each other and clamp the saw blade 4. Subsequently, the grinding device 5 grinds the teeth while the pushing rod 8 is pulled back. After grinding, the push rod 8 is pulled back to its rearmost position. At this time, the push rod 8 contacts the pressure sensor 22 on the rear side. After the control system collects the pressure signal from the pressure sensor 22 on the rear side, it controls the lifting device 19 to move the second U-shaped frame 17 upward, which in turn moves the limiting block 14 upward. The vertical section of the second U-shaped frame 17 slides in the through groove 20. At the same time, under the restriction of the inclined side 15 and the second slide rail 16, the two limiting blocks 14 move away from each other, releasing the saw blade 4. When the push rod 8 pushes forward again, it can smoothly push the saw blade 4 forward. By continuously repeating this process, the grinding of the saw blade 4 can be completed automatically. In this utility model, when the grinding device 5 presses down to grind the teeth of the saw blade 4, the clamping mechanism can firmly clamp the saw blade 4, maintaining the stability of the saw blade during grinding. The precise positioning of the saw blade 4 can effectively prevent the position of the grinding device 5 and the teeth of the saw blade 4 from shifting, thus preventing damage to the teeth.

[0039] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An alloy saw blade grinding machine, comprising a base (1) and a saw blade (4), wherein a guide mechanism is provided on the base (1), and the saw blade (4) moves vertically with its teeth facing upward, characterized in that, Also includes: A power box (7) is set on a base (1). A grinding device (5) and a pushing device (6) are set on the power box (7). The bottom of the pushing device (6) intermittently engages between the two teeth of the saw blade (4) through a pushing rod (8) and pushes the saw blade (4) forward by a distance of one tooth. The first U-shaped frame (10) is mounted on the power box (7); Two clamps (11) are provided, and both clamps (11) are slidably mounted on the first U-shaped frame (10). The two clamps are located on both sides of the saw blade (4). The clamping mechanism is set on the first U-shaped frame (10). During the pullback of the push rod (8), the clamping mechanism drives the two clamping plates (11) to clamp the saw blade (4) and the grinding device (5) completes the grinding work during this period. During the push forward of the push rod (8), the clamping mechanism drives the two clamping plates (11) to release the saw blade (4).

2. The alloy saw blade grinding machine according to claim 1, characterized in that, The guiding mechanism includes multiple support seats (2) set on the base (1) and two guide plates (3) set on the support seats (2), with the two guide plates (3) respectively contacting the two sides of the saw blade (4).

3. The alloy saw blade grinding machine according to claim 1, characterized in that, The bottom of the first U-shaped frame (10) is provided with a strip groove (13), and the bottom of the two clamping plates (11) are slidably connected to the inner wall of the strip groove (13). Two fixing plates (21) are provided on the inner wall of the first U-shaped frame (10), and the push rod (8) is located between the two fixing plates (21). Pressure sensors (22) are provided on the opposite end faces of the two fixing plates (21).

4. The alloy saw blade grinding machine according to claim 3, characterized in that, The push rod (8) is pushed forward to the maximum distance and contacts the pressure sensor (22) on the front side. The clamping mechanism drives the two clamping plates (11) to clamp the saw blade (4). The push rod (8) is pulled back to the maximum distance and contacts the pressure sensor (22) on the rear side. The clamping mechanism drives the two clamping plates (11) to release the saw blade (4).

5. The alloy saw blade grinding machine according to claim 3, characterized in that, The clamping mechanism includes a limiting block (14), a second U-shaped frame (17), and a lifting device (19); the strip groove (13) is provided with a bevel (15) on the groove wall on both sides of the saw blade (4), the limiting block (14) is slidably disposed on the bevel (15), and a through groove (20) is provided on the limiting block (14); the U-shaped groove of the second U-shaped frame (17) faces upward, and the vertical plates on both sides pass through the two through grooves (20) respectively, and two baffles (18) are arranged side by side on both vertical plates, and the two baffles (18) contact the upper and lower sides of the limiting block (14) respectively; the lifting device (19) is vertically disposed at the bottom of the first U-shaped frame (10), and the bottom extension end of the lifting device (19) is connected to the bottom of the second U-shaped frame (17).

6. The alloy saw blade grinding machine according to claim 5, characterized in that, A second slide groove is provided on the inclined side (15), and an inclined surface parallel to the inclined side (15) is provided on the limiting block (14). A second slide rail (16) is provided on the inclined surface, and the second slide rail (16) cooperates with the second slide groove.

7. The alloy saw blade grinding machine according to claim 5, characterized in that, When the push rod (8) is in contact with the front pressure sensor (22), the lifting device (19) drives the second U-shaped frame (17) to descend. When the push rod is in contact with the rear pressure sensor (22), the lifting device (19) drives the second U-shaped frame (17) to rise.

Images