A saw chain cutting tooth grinding positioning device of a leak-proof grinding and grinding tail

Abstract

The application discloses a saw chain cutting tooth piece grinding positioning device with leakage and grinding tail prevention, which comprises a cutting tooth piece positioning mechanism and an ejection detection mechanism. The cutting tooth piece positioning mechanism comprises a positioning needle and a position sensor. Three positioning needles are distributed at intervals along the conveying direction of the cutting tooth piece. The interval between the two positioning needles on the front side of the conveying direction is L1. The interval between the second positioning needle and the third positioning needle in the conveying direction is L2, and L2 is smaller than L1. L2=L3. The ejection detection mechanism comprises a detection piece, a detection sensor and a reset piece. The detection piece is arranged outside the outlet of the cutting tooth piece feeding mechanism. The detection sensor is triggered by the cutting tooth piece during normal conveying of the cutting tooth piece. The reset piece is used for resetting the detection piece. In the application, the cutting tooth piece positioning mechanism and the ejection detection mechanism cooperate with the grinding system, so that the grinding of the cutting tooth piece is more accurate, and the problems of ungrinding, leakage and other poor quality problems can be effectively eliminated.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of saw chain processing, and particularly relates to a saw chain tooth piece grinding device. BACKGROUND

[0002] Saw chain tooth pieces need to be ground, and a saw chain tooth piece grinding positioning device and a grinding device are arranged on a grinding station corresponding to a pushing track. A pushing assembly pushes the tooth pieces to be conveyed along the pushing track to the grinding station. Since two chain shaft holes corresponding to two chain shafts are machined on the saw chain tooth piece, two positioning needles are arranged on the saw chain tooth piece grinding positioning device, and the distance between the two positioning needles is equal to the distance between the two chain shaft holes on the tooth piece. Therefore, when positioning, the two positioning needles are inserted into the two chain shaft holes on the saw chain tooth piece to press the saw chain tooth piece. It is found in actual production that in some fault conditions, if the saw chain tooth piece is not accurately positioned at the grinding station, the two positioning needles may be inserted into the two adjacent chain shaft holes on the two adjacent saw chain tooth pieces, and the grinding is inaccurate, that is, the grinding is misaligned, and only the tail of the saw chain tooth piece is ground.

[0003] In addition, it is also found in actual production that in the state of unexpected shutdown and abnormal vibration disc feeding, the tooth pieces may not be ground, and the ungrounded tooth pieces may be normally conveyed and discharged under the pushing of the subsequent tooth pieces and mixed with the already ground tooth pieces. SUMMARY

[0004] In view of the deficiencies in the prior art, the technical problem to be solved by the application is to provide a saw chain tooth piece grinding positioning device capable of preventing grinding omission and grinding of the tail, which can prevent misalignment of grinding and mixing of unground tooth pieces with already ground tooth pieces.

[0005] To solve the above technical problems, the application adopts the following technical scheme:

[0006] A saw chain tooth piece grinding positioning device capable of preventing grinding omission and grinding of the tail comprises a tooth piece feeding mechanism, a tooth piece positioning mechanism and a discharge detection mechanism,

[0007] The tooth piece feeding mechanism comprises a vibration disc, a feeding track connected with a discharge port of the vibration disc, and a pushing track connected with a discharge end of the feeding track. A pushing assembly is arranged to push the tooth pieces to be conveyed along the pushing track.

[0008] The positioning mechanism of the cutting tooth piece comprises positioning pins, a positioning pin driver for driving the positioning pins to press the cutting tooth piece, and a position sensor for detecting the position of the positioning pins, the positioning pins are inserted into the chain shaft holes of the saw chain cutting tooth piece for positioning, characterized in that three positioning pins are arranged, the three positioning pins are arranged at intervals along the conveying direction of the saw chain cutting tooth piece, the interval between the two positioning pins on the front side in the conveying direction is L1, L1 is equal to the interval between the two chain shaft holes on the saw chain cutting tooth piece, the interval between the second positioning pin and the third positioning pin in the conveying direction is L2, the interval between the two chain shaft holes on the two adjacent saw chain cutting tooth pieces is L3, and L2 is less than L1 and L2=L3.

[0009] The discharge detection mechanism is arranged at the outlet of the cutting tooth piece feeding mechanism, and comprises a detection member, a detection sensor and a reset member, the detection member is arranged outside the outlet of the cutting tooth piece feeding mechanism, and the detection sensor is triggered by the cutting tooth piece during normal conveying of the cutting tooth piece, and the reset member is used for resetting the detection member.

[0010] Preferably, the positioning pin driver is a positioning pin driving cylinder, a positioning pin driving block is connected to the piston rod of the positioning pin driving cylinder, and the positioning pin is fixed to the positioning pin driving block.

[0011] Preferably, the positioning pin driving block is in sliding fit with the guide rail.

[0012] Preferably, the position sensor is connected with an alarm, and the alarm alarms when the position sensor feeds back an abnormal position of the positioning pin.

[0013] Preferably, the detection member comprises a lever connected with a pin shaft and a limit detection head connected with the head end of the lever, and the reset member is a torsion spring connected with the pin shaft and the lever.

[0014] Preferably, one end of the pin shaft is fixed with the lever, the pin shaft is rotatably supported in the middle in a pin shaft seat, and the other end of the pin shaft is connected with a connecting rod, and the detection sensor is correspondingly arranged at the rear end of the connecting rod.

[0015] Preferably, the detection sensor is a displacement sensor or a limit switch.

[0016] Preferably, the pushing assembly comprises a pushing cylinder and a pushing rod driven by the pushing cylinder, and the head end of the pushing rod is provided with a pushing hook which can be inserted into the chain shaft hole and separated from the chain shaft hole.

[0017] Preferably, the piston rod of the pushing cylinder is parallel to the pushing rail direction, the piston rod of the pushing cylinder is vertically connected with a fixed shaft, and the fixed shaft is hingedly connected with the tail end of the pushing rod.

[0018] Preferably, the side surface of the pushing rail is provided with a limit baffle.

[0019] The present application has the following beneficial effects by adopting the above technical solution:

[0020] The first saw chain tooth piece, the second saw chain tooth piece and the third saw chain tooth piece are sequentially connected in a head-to-tail manner along the conveying direction of the saw chain tooth piece. Under normal circumstances, after the first saw chain tooth piece is ground, the second saw chain tooth piece is conveyed along the pushing track while pushing the first saw chain tooth piece, so that the first saw chain tooth piece is pushed away from the grinding station, and the second saw chain tooth piece is pushed to the grinding station. In the case that the second saw chain tooth piece is accurately positioned in the grinding station, the two positioning pins on the front side of the conveying direction are inserted into the two chain shaft holes on the second saw chain tooth piece, and the third positioning pin in the conveying direction is inserted into the adjacent chain shaft hole of the third saw chain tooth piece. If the second saw chain tooth piece is not accurately pushed to the grinding station, the two positioning pins on the front side of the conveying direction cannot be inserted into the two chain shaft holes on the second saw chain tooth piece, so the height of the positioning pin is higher than that under normal circumstances, and the position sensor can detect the abnormal position of the positioning pin. Even if the positions of the two positioning pins on the front side of the conveying direction correspond to the positions of the adjacent two chain shaft holes on the second saw chain tooth piece and the third saw chain tooth piece, the third positioning pin in the conveying direction does not correspond to the position of the other chain shaft hole on the third saw chain tooth piece, and cannot be inserted into the chain shaft hole, so the height of the positioning pin is still higher than that under normal circumstances, and the position sensor can also detect the abnormal position of the positioning pin. Therefore, timely alarm and fault solving can be performed, so that grinding mispositioning can be avoided, and only the tail part of the saw chain tooth piece is ground.

[0021] In addition, the discharge detection mechanism is provided, after the tooth piece is ground, the next tooth piece is pushed by the pushing assembly and conveyed along the pushing track while pushing the previous saw chain tooth piece, so that the previous tooth piece is pushed away from the grinding station, and the discharge detection mechanism detects whether there is a lack of material on the pushing track. Under the condition that there is material, the tooth piece can be continuously conveyed, the tooth piece pushes the limit detection head at the outlet, the detection sensor is triggered by using the lever principle, and the next action can be performed. Under the condition that there is a lack of material, the detection sensor cannot be triggered, so the alarm stops. The ungrounded tooth piece caused by feeding or uncontrollable factors can be prevented from mixing into the finished product.

[0022] Therefore, the saw chain tooth piece positioning mechanism and the discharge detection mechanism cooperate with the grinding system in the present application, so that the tooth piece grinding position is more accurate, and the ungrounded, missed grinding and other poor quality problems can be effectively eliminated.

[0023] The characteristics and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The application will be further described below with reference to the drawings:

[0025] Figure 1 Structure diagram of saw chain tooth blade grinding equipment;

[0026] Figure 2 Structure diagram of saw chain tooth blade grinding positioning device;

[0027] Figure 3 Structure diagram of saw chain tooth blade grinding positioning device Figure 1 ;

[0028] Figure 4 Structure diagram of saw chain tooth blade grinding positioning device Figure 2 ;

[0029] Figure 5 Structure diagram of saw chain tooth blade grinding positioning device Figure 4 ;

[0030] Cutting tooth blade 100, chain shaft hole 101, saw chain tooth blade grinding positioning device 1, pushing assembly 11, pushing cylinder 111, fixed shaft 112, pushing rod 113, cutting tooth blade positioning mechanism 12, positioning needle driving cylinder 121, positioning needle driving block 122, positioning needle 123, discharge detection mechanism 13, limit detection head 131, lever 132, pin shaft 133, pin shaft seat 134, limiting block 135, connecting rod 136, detection sensor 137, grinding device 2, workbench 21, grinding wheel motor 22, grinding wheel 23, cutting tooth blade feeding mechanism 3, vibration disc 31, feeding track 32, pushing track 33, discharging track 4.

DETAILED DESCRIPTION

[0031] The technical solutions of the embodiments of the present application will be explained and described below in combination with the drawings of the embodiments of the present application. However, the following embodiments are only preferred embodiments of the present application, and are not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0032] Those skilled in the art can understand that the features in the following embodiments and embodiments can be combined with each other without conflict.

[0033] The terms used in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. For example, the words indicating the orientation or position relationship such as "upper", "lower", "front", "back" and the like in the following description are only based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application.

[0034] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] As shown in Figures 1 to 5 The present application provides a saw chain tooth grinding positioning device 1 for anti-leakage and anti-wear tail, which is used for accurately positioning the saw chain tooth 100 to achieve accurate grinding. It is arranged on a saw chain tooth grinding device, which is also provided with a tooth feeding mechanism 3 and a grinding device 2. The grinding device 2 is a prior art, which comprises a workbench 21, a grinding wheel motor 22 arranged on the workbench 21, and a grinding wheel 23 connected with the output shaft of the grinding wheel motor. It can be understood that the workbench 21 can be driven by an X-direction driving mechanism and a Y-direction driving mechanism to move in the horizontal direction. The tooth feeding mechanism 3 comprises a vibrating disc 31, a feeding track 32 connected with the discharging port of the vibrating disc, and a pushing track 33 connected with the discharging end of the feeding track. The saw chain tooth 100 sent out from the vibrating disc 31 is conveyed along the feeding track 32 and the pushing track 33. A grinding station is arranged corresponding to the position of the pushing track 33. The saw chain tooth 100 is accurately positioned by the saw chain tooth grinding positioning device 1 at the grinding station, and then ground by the grinding device 2. After grinding is completed, the saw chain tooth 100 is continuously conveyed along the pushing track 33 and falls at the rear end of the pushing track.

[0037] It should be noted that two chain shaft holes 101 are machined on the saw chain tooth 100, which correspond to two chain shafts for connection, and the distance between the two chain shaft holes 101 is L0. When the saw chain teeth 100 are closely arranged in end-to-end connection along the pushing track 33, the distance between the adjacent two chain shaft holes of the adjacent two saw chain teeth in end-to-end connection is L3, and L3

[0038] The saw chain cutting tooth piece grinding positioning device 1 comprises a pushing assembly 11 for pushing the cutting tooth piece to move along the pushing track 33, a cutting tooth piece positioning mechanism 12 and an ejection detection mechanism 13.

[0039] The cutting tooth piece positioning mechanism 12 comprises a positioning needle 123, a positioning needle driver for driving the positioning needle to press the cutting tooth piece 100 and a position sensor for detecting the position of the positioning needle. Specifically, the positioning needle 123 is inserted into the chain shaft hole 101 of the saw chain cutting tooth piece for positioning. In the prior art, two positioning needles are provided, the distance between the two positioning needles is L1, and L1 is equal to the distance L0 between the two chain shaft holes on the cutting tooth piece. Therefore, when positioning, the two positioning needles are inserted into the two chain shaft holes on the saw chain cutting tooth piece to press the saw chain cutting tooth piece. Generally, the head end of the positioning needle is provided with a tapered positioning head.

[0040] In order to avoid the situation that the grinding device 2 still grinds the cutting tooth piece 100 when the cutting tooth piece is not in position, resulting in grinding tail, etc. The positioning needle 123 is provided with three positioning needles, which are distributed at intervals along the conveying direction of the saw chain cutting tooth piece. The two positioning needles on the front side of the conveying direction correspond to the two positioning needles in the prior art, and the distance between them is still L1. However, the distance between the second positioning needle and the third positioning needle in the conveying direction is L2, and L2 and L1 are not equal, including the case that L2 is less than L1 or L2 is greater than L1, preferably L2 is less than L1 (not including the case of equality), and L2=L3.

[0041] The first saw chain cutting tooth piece, the second saw chain cutting tooth piece and the third saw chain cutting tooth piece are sequentially connected in the conveying direction of the saw chain cutting tooth piece. Under normal circumstances, after the first saw chain cutting tooth piece is ground, the pushing assembly pushes the second saw chain cutting tooth piece to move along the pushing track while pushing the first saw chain cutting tooth piece, so as to push the first saw chain cutting tooth piece away from the grinding station and push the second saw chain cutting tooth piece to the grinding station. If the second saw chain cutting tooth piece is accurately positioned at the grinding station, the two positioning needles on the front side of the conveying direction are inserted into the two chain shaft holes on the second saw chain cutting tooth piece, and the third positioning needle in the conveying direction is inserted into the adjacent chain shaft hole of the third saw chain cutting tooth piece. If the second saw chain cutting tooth piece is not accurately pushed to the grinding station, the two positioning needles on the front side of the conveying direction cannot be inserted into the two chain shaft holes on the second saw chain cutting tooth piece, so the height of the positioning needle is higher than that under normal circumstances, and the position sensor can detect the abnormal position of the positioning needle. Even if the positions of the two positioning needles on the front side of the conveying direction correspond to the positions of the adjacent two chain shaft holes on the second saw chain cutting tooth piece and the third saw chain cutting tooth piece, and the position of the third positioning needle in the conveying direction does not correspond to the position of the other chain shaft hole on the third saw chain cutting tooth piece and cannot be inserted into the chain shaft hole, the height of the positioning needle is still higher than that under normal circumstances, and the position sensor can also detect the abnormal position of the positioning needle.

[0042] Further, the position sensor is connected with a first alarm and a control part of the saw chain tooth blade grinding device, the first alarm alarms when the position sensor feeds back abnormal position of the positioning needle, and the control part of the saw chain tooth blade grinding device controls the machine to stop to eliminate the fault.

[0043] In the embodiment, the positioning needle driver is a positioning needle driving cylinder 121, a piston rod of the positioning needle driving cylinder is connected with a positioning needle driving block 122, and the positioning needle 123 is fixed to the positioning needle driving block 122. A positioning needle mounting hole is processed on the positioning needle driving block, a limiting screw is arranged at the top of the positioning needle mounting hole, the positioning needle 123 is inserted into the positioning needle mounting hole and the top is limited by the limiting screw, a threaded hole is arranged at the side of the positioning needle mounting hole, and a locking screw is connected to lock and fix the positioning needle.

[0044] In order to ensure accurate positioning of the positioning needle, the positioning needle driving block 122 is in sliding fit with the guide rail, and the axis of the positioning needle can always be ensured to be concentric with the axis of the chain shaft hole on the tooth blade of the grinding station during up and down movement of the positioning needle.

[0045] The length of the pushing track is relatively long, the middle part corresponding to the grinding station part has a length of a saw chain tooth blade, the front part has a length of at least two saw chain tooth blades, and the rear part is the outlet part of the entire tooth blade feeding mechanism and has a length less than that of a saw chain tooth blade, for example, less than half the length of a saw chain tooth blade. Therefore, the saw chain tooth blade continuously conveyed from the grinding station can push the tooth blade at the outlet part away from the pushing track, so that the tooth blade falls under the action of its own gravity. A discharging track 4 is arranged below the rear end of the pushing track to realize discharging of the ground saw chain tooth blade.

[0046] In order to avoid mixing of unground tooth blades into the already ground tooth blades, a discharging detection mechanism 13 is arranged at the outlet of the tooth blade feeding mechanism 12. The discharging detection mechanism 13 includes a detection piece, a detection sensor 137 and a reset piece, the detection piece is arranged outside the outlet of the tooth blade feeding mechanism and is driven by the saw chain tooth blade to trigger the detection sensor when the saw chain tooth blade is normally conveyed, and the reset piece is used to reset the detection piece. The detection sensor 137 is connected with a second alarm and a control part of the saw chain tooth blade grinding device, the second alarm alarms when the trigger sensor does not feed back a trigger signal, and the control part of the saw chain tooth blade grinding device controls the machine to stop to eliminate the fault.

[0047] As an embodiment, the detecting member comprises a lever 132 connected with a pin shaft 133 and a position detecting head 131 connected with the head end of the lever, and the reset member is a torsion spring connected with the pin shaft and the lever. After the grinding is completed, the saw chain cutting tooth piece at the outlet of the pushing track is separated from the outlet of the pushing track under the pushing of the next grinding completed cutting tooth piece, and contacts with the position detecting head 131, and pushes the lever 132 to rotate. After the cutting tooth piece is separated from the outlet of the pushing track, it falls freely under the action of gravity, contacts with the position detecting head 131, and the torsion spring drives the lever to reset, so that the position detecting head 131 is re-sealed outside the outlet of the cutting tooth piece feeding mechanism.

[0048] Further, one end of the pin shaft is fixed with the lever, the middle part is rotatably supported on the pin shaft seat 134, and the other end is connected with a connecting rod 136, and the detecting sensor is correspondingly arranged at the rear end of the connecting rod. In addition, a limiting block 135 is arranged to limit the rotating angle of the lever.

[0049] In one embodiment, the detecting sensor is a displacement sensor, which alarms when the position change reaches a threshold. In another embodiment, the detecting sensor is a limit switch, which alarms when the limit switch is triggered.

[0050] After the cutting tooth piece is ground, the next cutting tooth piece is pushed along the pushing track by the pushing assembly, and the previous saw chain cutting tooth piece is pushed away from the grinding station. At the same time, the discharge detecting mechanism detects whether there is a lack of material on the pushing track. In the case of material, the saw chain cutting tooth piece can be continuously conveyed, the cutting tooth piece at the outlet of the saw chain pushes the position detecting head, the detecting sensor is triggered by the lever principle, and the next action can be performed. In the case of lack of material, the detecting sensor cannot be triggered, so the alarm stops.

[0051] As an embodiment, the pushing assembly 11 comprises a pushing cylinder 111 and a pushing rod 113 driven by the pushing cylinder, and the head end of the pushing rod is provided with a pushing hook which can be inserted into the chain shaft hole and separated from the chain shaft hole. The front part of the pushing hook cooperates with the side wall of the chain shaft hole when pushing the cutting tooth piece to move, and the rear part is provided with an arc surface to facilitate separation from the chain shaft hole when retreating.

[0052] In this embodiment, the piston top rod of the pushing cylinder is parallel to the direction of the pushing track, the piston top rod of the pushing cylinder is vertically connected with a fixed shaft 112, and the fixed shaft is hinged with the tail end of the pushing rod. Therefore, under the action of gravity, the pushing rod rotates downward and can be inserted into the chain shaft hole. When the pushing cylinder drives the pushing rod to retreat, the pushing rod can rotate upward, which facilitates the separation of the pushing hook from the chain shaft hole when retreating.

[0053] It can be understood that a limiting baffle can also be arranged on the side of the pushing track to limit the cutting tooth piece.

[0054] It can be understood that the pusher cylinder 111 and the positioning needle driving cylinder 121 described above can also be replaced by a linear motor, an oil cylinder, etc.

[0055] The above is only a specific embodiment of the application, but the protection scope of the application is not limited thereto. Those skilled in the art should understand that the application includes but is not limited to the contents described in the drawings and the above specific embodiment. Any modification not deviating from the functional and structural principles of the application will be included in the scope of the claims.

Claims

1. A saw chain tooth grinding positioning device of a leak-proof grinding and anti-grinding tail, comprising a tooth feeding mechanism, a tooth positioning mechanism and an exit detection mechanism, characterized in that the tooth feeding mechanism comprises a vibrating disc, a feeding track connected with the exit of the vibrating disc, a pushing track connected with the exit end of the feeding track, and a pushing assembly for pushing the tooth along the pushing track; the tooth positioning mechanism comprises a positioning needle, a positioning needle driver for driving the positioning needle to press the tooth, and a position sensor for detecting the position of the positioning needle, the positioning needle is inserted into the chain shaft hole of the saw chain tooth for positioning, characterized in that three positioning needles are arranged, the three positioning needles are distributed at intervals along the conveying direction of the saw chain tooth, the interval between the two positioning needles on the front side of the conveying direction is L1, L1 is equal to the interval between the two chain shaft holes on the saw chain tooth, the interval between the second positioning needle and the third positioning needle in the conveying direction is L2, the interval between the two chain shaft holes on the two adjacent saw chain teeth is L3, and L2 is less than L1, L2 = L3; the position sensor is connected with an alarm, the alarm alarms when the position sensor feeds back an abnormal position of the positioning needle, the position sensor is connected with the control part of the saw chain tooth grinding equipment, and the control part of the saw chain tooth grinding equipment controls the machine to stop when the alarm alarms; the exit detection mechanism is arranged at the exit of the tooth feeding mechanism, and comprises a detection piece, a detection sensor and a reset piece, the detection piece is arranged outside the exit of the tooth feeding mechanism, and the detection sensor is triggered by the tooth when the tooth is normally conveyed, and the reset piece is used for resetting the detection piece. The positioning needle driver is a positioning needle driving cylinder, a positioning needle driving block is connected with the piston rod of the positioning needle driving cylinder, and the positioning needle is fixed to the positioning needle driving block. The positioning needle driving block is in sliding fit with a guide rail. The detection piece comprises a lever connected with a pin shaft and a limit detection head connected with the head end of the lever, and the reset piece is a torsion spring connected with the pin shaft and the lever. One end of the pin shaft is fixed with the lever, the middle part is rotatably supported on a pin shaft seat, and the other end is connected with a connecting rod.

2. A saw chain tooth grinding and positioning device with a leakage prevention grinding and a grinding tail portion according to claim 1, characterized in that The detection sensor is a displacement sensor or a limit switch.

3. A saw chain tooth grinding and positioning device with a leakage prevention grinding and a grinding tail portion according to claim 2, characterized in that The pushing assembly comprises a pushing cylinder and a pushing rod driven by the pushing cylinder, the head end of the pushing rod is provided with a pushing hook which can be inserted into the chain shaft hole and separated from the chain shaft hole.

4. A saw chain tooth grinding and positioning device with a leak-proof grinding and a wear-resistant tail portion according to claim 1, characterized in that The piston rod of the pushing cylinder is parallel to the direction of the pushing track, the piston rod of the pushing cylinder is vertically connected with a fixed shaft, and the fixed shaft is hingedly connected with the tail end of the pushing rod.

5. A saw chain cutting blade grinding and positioning device for preventing leakage and wear at the tail end according to claim 4, characterized in that: The side surface of the pushing track is provided with a limit baffle.

6. A saw chain tooth grinding and positioning device with a leak-proof grinding and a leak-proof trailing portion according to claim 5, characterized in that ​ 7. A saw chain tooth grinding and positioning device with a leak-proof grinding and a wear-resistant tail portion according to claim 1, characterized in that ​ 8. A saw chain tooth grinding and positioning device with a leak-proof grinding and a wear-resistant tail portion according to claim 7, characterized in that ​ 9. A saw chain tooth grinding and positioning device with a leak-proof grinding and a wear-resistant tail portion according to claim 7, characterized in that ​

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