CN218874772U

CN218874772U - Chain grinding machine

Info

Publication number: CN218874772U
Application number: CN202320221710.1U
Authority: CN
Inventors: 杨勇
Original assignee: Sichuan Craftsman Daren Mechanical Equipment Co ltd
Current assignee: Sichuan Craftsman Daren Mechanical Equipment Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-04-18
Anticipated expiration: 2033-02-15

Abstract

The application discloses chain grinding machine, chain grinding machine is used for coping chain tapping machine's chain cutter, includes: the workstation with set up in installation component on the workstation and be used for the sharpedge grinding machine of coping chain cutting edge, installation component includes mount and adjustable shelf, sharpedge grinding machine movably install in on the mount, install two sprockets that are used for the tensioning or loosen the chain cutter on the adjustable shelf, the adjustable shelf with mount swing joint, just the adjustable shelf can be relative the mount is followed the extending direction of workstation removes. The utility model discloses an it just can realize the coping of sharpedge grinding machine to the chain cutter, easy operation, convenience to adjust adjustable shelf relative mount removal. Meanwhile, after the operator rotates the chain wheel, the next chain cutter cutting edge can be polished, the use is flexible, convenient and reliable, and the polishing efficiency is improved.

Description

Chain grinding machine

Technical Field

The utility model relates to an instrument grinding machine technical field especially relates to a chain grinding machine.

Background

Publication No. CN 211967794U's patent discloses a tapping machine, including the trompil device, for the trompil device rotates the motor that provides power and the fixture device who is connected with the trompil device through the brace member, the trompil device is two double-hinged staggered chain structure that forms through the round pin axle for a plurality of link joints, and the fixed cutter that is equipped with the cutting edge towards chain direction of rotation on the link joint, this tapping machine is through setting up the cutter on the link joint, articulated formation chain between the link joint, accomplish the cutting action to the work piece through the rotation of chain, be fit for processing bar hole, square hole, tenon, mortise, slotted hole, groove etc., not only reduced the preparation personnel's work load, still improved preparation efficiency and precision.

It can be seen from the above patent that, the cutter in the tapping machine is arranged on the chain plate, and during actual use, the cutter often causes abrasion of the cutting edge of the cutter when cutting a workpiece, so that not only can the processing precision and quality of the workpiece be reduced, but also the service life of the cutter can be shortened, the production and manufacturing cost can be increased, and the cutter needs to be repaired. Meanwhile, in order to facilitate processing and manufacturing and reduce assembly gap errors, the cutter and the chain plate are generally manufactured into an integrated structure, namely, an integrated chain cutter is manufactured, so that the cutter is not convenient to take and grind, the operation is difficult, the grinding efficiency is low, and a special mechanical device is required to grind the cutter.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a chain grinding machine aims at solving the cutter coping operational difficulty and the inefficiency problem of current chain tapping machine.

In order to achieve the above object, the utility model provides a chain grinding machine, chain grinding machine are used for coping chain tapping machine's chain cutter, include: the workstation with set up in installation component on the workstation and be used for the sharpedge grinding machine of coping chain cutting edge, installation component includes mount and adjustable shelf, sharpedge grinding machine movably install in on the mount, install two sprockets that are used for the tensioning or loosen the chain cutter on the adjustable shelf, the adjustable shelf with mount swing joint, just the adjustable shelf can be relative the mount is followed the extending direction of workstation removes.

Preferably, the fixing frame comprises a base, a connecting seat and an L-shaped vertical plate used for installing the knife sharpener, the connecting seat is arranged on the base, a limiting boss is formed on one side, away from the base, of the connecting seat, a first sliding groove extending in the direction away from the movable frame is formed in the position, corresponding to the limiting boss, of the L-shaped vertical plate, and the limiting boss can extend into the first sliding groove and is in sliding contact fit with the first sliding groove.

Preferably, the adjusting rod is rotatably installed on the connecting seat, an installation block is arranged on one side, facing the base, of the L-shaped vertical plate, one end of the adjusting rod penetrates through the connecting seat and is connected with the installation block, so that the adjusting rod can drive the L-shaped vertical plate to be close to or far away from the movable frame, and a rotating handle is arranged at the other end of the adjusting rod.

Preferably, the base includes two risers that set up along the extending direction interval of workstation, two be provided with the slide bar between the riser, the adjustable shelf includes the slider, offer on the slider and be used for supplying the mounting hole that the slide bar passed, just the slide bar with the mounting hole sliding contact cooperation, so that the slider can be relative the riser is followed the extending direction of slide bar removes.

Preferably, the adjustable shelf still includes the regulating block, the regulating block set up in keep away from on the slider one side of workstation, the vertical guide bar that is provided with on the slider, just seted up on the regulating block be used for with guide bar sliding contact complex through-hole, the slider is kept away from the lockhole has been seted up to one side of base, correspond on the regulating block the second spout has been seted up to the position of lockhole, be provided with the lock post on the slider, the lock post passes the second spout and with the lockhole cooperation, in order with the regulating block lock extremely on the slider.

Preferably, rotationally install the push rod on the regulating block, the extending direction of push rod with the extending direction of slide bar is unanimous, the push rod passes the one end of regulating block be provided with be used for with the baffle of regulating block both sides butt, the push rod is kept away from the one end of regulating block is provided with another the rotation handle, just install one on the push rod the sprocket.

Preferably, the adjustable shelf is still including the installation pole, the installation pole vertical set up in be close to on the slider one side of workstation, keep away from on the installation pole the direction of slider has set up two regulation handles at the interval in proper order, and two regulation handle rotationally install in on the installation pole, two the cover is equipped with the installation sleeve between the regulation handle, correspond one on the installation sleeve the position of sprocket is provided with another the sprocket, the installation sleeve with be provided with the elastic component between the fixed handle.

Preferably, the knife sharpener is provided with a grinding wheel, and a protective cover is arranged outside the grinding wheel.

Has the advantages that:

1. the utility model relates to an among the chain grinding machine, because install two sprockets that are used for the tensioning or loosen the chain cutter on the adjustable shelf among the installation component, two sprockets can the relative workstation remove along upper and lower direction on the adjustable shelf promptly, the operator when carrying out the coping to the chain cutter, with chain cutter and two sprocket cooperations in order to install to the adjustable shelf on, make the operator need not handheld chain cutter, only just can realize the coping of sharpedge grinding machine to the chain cutter through the removal of adjusting the adjustable shelf relative mount, and is simple in operation, and convenient.

2. Because the knife sharpener is movably arranged on the fixed frame, when the chain sharpener is used, an operator can realize the butt and grinding with a chain cutter by adjusting the knife sharpener to move towards the direction close to the movable frame relative to the fixed frame; meanwhile, the knife sharpener is adjusted to move towards the direction far away from the movable frame relative to the fixed frame, so that the knife sharpener can be separated from the chain cutter, and an operator can grind the cutting edge of the next chain cutter after rotating the chain wheel.

3. Because the adjustable shelf can remove along the extending direction of workstation relative mount to make sharpedge grinding machine can carry out width direction's coping relative the chain cutter, not only enlarged the coping scope, still improved the utility model relates to a chain grinding machine's practicality.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural view of a chain grinding machine according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a front view of a chain grinding machine according to an embodiment of the present invention;

fig. 4 is a sectional view at B-B in fig. 3.

In the figure: 100-a chain grinder; 1-a workbench; 2-mounting the assembly; 3, a knife grinder; 4-a fixing frame; 5-a movable frame; 6-chain wheel; 7-a base; 8-a connecting seat; 9-L-shaped vertical plates; 10-limiting boss; 11-a first runner; 12-adjusting the rod; 13-a mounting block; 14-turning the handle; 15-standing the plate; 16-a slide bar; 17-a slide block; 18-mounting holes; 19-a conditioning block; 20-a guide bar; 21-a through hole; 22-keyhole; 23-a second chute; 24-a lock cylinder; 25-a push rod; 26-a baffle; 27-mounting a rod; 28-adjusting the handle; 29-mounting the sleeve; 30-an elastic member; 31-a grinding wheel; 32-protective cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between descriptions and not necessarily for describing or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

Example 1:

the utility model provides a chain grinding machine 100.

In an embodiment of the present invention, a chain sharpener 100, the chain sharpener 100 is used for sharpening a chain cutter of a chain hole drilling machine, comprising: workstation 1 with set up installation component 2 on workstation 1 and be used for the sharpedge grinding machine 3 of coping chain cutting edge, installation component 2 includes mount 4 and adjustable shelf 5, sharpedge grinding machine 3 is movably installed on mount 4, installs two on the adjustable shelf 5 and is used for the tensioning or loosen chain cutter's sprocket 6,

adjustable shelf

5 and 4 swing joint of mount, and adjustable shelf 5 can be relative mount 4 and remove along the extending direction of workstation 1.

Specifically, as shown in fig. 1, in the utility model relates to a chain grinding machine 100, because install two sprockets 6 that are used for the tensioning or loosen the chain cutter on the adjustable shelf 5 among the installation component 2, two sprockets 6 can relative workstation 1 move along upper and lower direction on adjustable shelf 5 promptly, the operator is when carrying out the coping to the chain cutter, with the chain cutter with two sprocket 6 cooperations in order to install to adjustable shelf 5 on, make the operator need not handheld chain cutter, only remove through adjusting adjustable shelf 5 relative mount 4 and just can realize the coping of sharpedge grinding machine 3 to the chain cutter, and easy operation, convenience.

Furthermore, because the knife sharpener 3 is movably mounted on the fixing frame 4 along the left-right direction, when the chain sharpener 100 of the present invention is in use, an operator can realize the butt and grinding with a chain cutter by adjusting the knife sharpener 3 to move leftwards relative to the fixing frame 4; meanwhile, the knife sharpener 3 can be separated from the chain cutter by adjusting the knife sharpener 3 to move rightwards relative to the fixing frame 4, and at the moment, an operator can grind the cutting edge of the next chain cutter through the rotating chain wheel 6, so that the sharpening machine is flexible, convenient and reliable to use, and the grinding efficiency is improved. Understandably, because the adjustable shelf 5 can move along the fore-and-aft direction of the workbench 1 relative to the fixed shelf 4, so that the chain cutter on the adjustable shelf 5 can relatively grind the cutter 3 and carry out the removal coping of the fore-and-aft direction, not only enlarge the coping range, still improve the utility model relates to a chain grinder 100's practicality.

In one embodiment, the fixing frame 4 includes a base 7, a connecting seat 8 and an L-shaped vertical plate 9 for mounting the knife sharpener 3, the connecting seat 8 is disposed on the base 7, and a limiting boss 10 is formed on one side of the connecting seat 8 away from the base 7, a first sliding groove 11 extending in a direction away from the movable frame 5 is formed on the L-shaped vertical plate 9 corresponding to the limiting boss 10, and the limiting boss 10 can extend into the first sliding groove 11 and be in sliding contact with and fit with the first sliding groove 11.

Specifically, as shown in fig. 1 to 2, the fixing frame 4 includes a base 7, a connecting seat 8 and an L-shaped vertical plate 9 for mounting the knife sharpener 3, which are sequentially arranged from bottom to top, the upper surface of the connecting seat 8 is upwardly provided with a limit boss 10, a first chute 11 extending in the left-right direction is provided at a position corresponding to the limit boss 10 on the L-shaped vertical plate 9, and the limit boss 10 can extend into the first chute 11 and be in sliding contact with the first chute 11, so that the L-shaped vertical plate 9 can move in the left-right direction relative to the connecting seat 8, and synchronously drive the knife sharpener 3 on the L-shaped vertical plate 9 to move in the left-right direction relative to the movable frame 5, thereby realizing the feeding motion of the knife sharpener 3 in the left-right direction relative to the sprocket 6. Further, both sides all are formed with spacing boss 10 around on the connecting seat 8, and first spout 11 has all been seted up to the position that both sides correspond two spacing bosses 10 around the L shape riser 9, and then realize the sliding contact cooperation of the relative 8 a plurality of positions of connecting seat of L shape riser 9 for it is more steady, reliable when L shape riser 9 removes the regulation.

As can be appreciated, in the chain grinding machine 100 of the present invention, the limit stud is mounted on the limit boss 10, and the stud has the characteristics of easy material acquisition and low cost, i.e., the detachable connection of the L-shaped vertical plate 9 and the connecting seat 8 can be realized by mounting the limit stud on the limit boss 10, and when the limit stud is screwed out, the left and right movement adjustment of the knife grinder 3 can be realized; after 3 removal of sharpedge grinding machine adjusted in place, can firmly install L shape riser 9 to connecting seat 8 through the spacing double-screw bolt of screwing, prevent that sharpedge grinding machine 3 from droing from connecting seat 8, improve holistic structural strength.

In one embodiment, an adjusting rod 12 is rotatably mounted on the connecting base 8, a mounting block 13 is disposed on a side of the L-shaped vertical plate 9 facing the base 7, one end of the adjusting rod 12 passes through the connecting base 8 and is connected with the mounting block 13, so that the adjusting rod 12 can drive the L-shaped vertical plate 9 to approach or depart from the movable frame 5, and a rotating handle 14 is disposed at the other end of the adjusting rod 12.

Specifically, as shown in fig. 1 to 4, the right side of connecting seat 8 is rotationally installed and is adjusted pole 12, and adjust pole 12 and can choose for use as the threaded rod among the prior art, do benefit to the processing preparation, the right side of connecting seat 8 is seted up threaded hole, adjust pole 12 and threaded hole screw-thread fit, be provided with installation piece 13 near its left position on the L shape riser 9, the left end of adjusting pole 12 passes behind the connecting seat 8 and is connected with installation piece 13, when needs are adjusted about sharpening machine 3, through screw in left or screw out adjusting pole 12 right, can realize sharpening machine 3's left and right sides direction on the L shape riser 9 and adjust. Furthermore, the right end of the adjusting rod 12 is provided with the rotating handle 14, so that the operator can conveniently rotate in or out of the adjusting rod 12, and the operation and the adjustment are convenient.

In an embodiment, the base 7 includes two vertical plates 15 disposed at intervals along an extending direction of the workbench 1, a sliding rod 16 is disposed between the two vertical plates 15, the movable frame 5 includes a sliding block 17, a mounting hole 18 for the sliding rod 16 to pass through is formed in the sliding block 17, and the sliding rod 16 is in sliding contact with the mounting hole 18, so that the sliding block 17 can move along the extending direction of the sliding rod 16 relative to the vertical plates 15.

Specifically, as shown in fig. 1 to 4, the base 7 includes two vertical plates 15 arranged at intervals along the front-rear direction, a sliding rod 16 is arranged between the two vertical plates 15, the movable frame 5 includes a sliding block 17, and mounting holes 18 for the sliding rod 16 to pass through are formed in the front side and the rear side of the sliding block 17, and the movable frame 5 can slide left and right between the two vertical plates 15 through the sliding contact fit of the sliding rod 16 and the mounting holes 18, so that the grinding and feeding of the chain cutter relative to the front-rear direction of the knife grinder 3 are realized.

In an embodiment, the movable frame 5 further includes a regulating block 19, the regulating block 19 is disposed on one side of the sliding block 17 far away from the workbench 1, a guide rod 20 is vertically disposed on the sliding block 17, and a through hole 21 used for being in sliding contact fit with the guide rod 20 is disposed on the regulating block 19, a locking hole 22 is disposed on one side of the sliding block 17 far away from the base 7, a second sliding groove 23 is disposed on the regulating block 19 corresponding to the locking hole 22, a locking column 24 is disposed on the sliding block 17, and the locking column 24 penetrates through the second sliding groove 23 and is matched with the locking hole 22, so that the regulating block 19 is locked on the sliding block 17.

Specifically, as shown in fig. 1 to 2, in the utility model relates to a chain grinding machine 100, regulating block 19 in the adjustable shelf 5 sets up in the last side of slider 17, and the vertical guide bar 20 that is provided with of the last side of slider 17, offer on the regulating block 19 be used for with the guide bar 20 sliding contact complex through-hole 21 to make regulating block 19 slide along the extending direction of guide bar 20 relative to slider 17, regulating block 19 can slide along upper and lower direction relative to slider 17 promptly, guide bar 20 has played the effect of spacing direction this moment.

Further, a lock hole 22 is formed in the left side of the sliding block 17, a second sliding groove 23 extending in the vertical direction is formed in the position, corresponding to the lock hole 22, of the adjusting block 19, the lock hole 22 can be opened to form a threaded hole, the lock column 24 can be selected to be a stud, processing and manufacturing are facilitated, materials are easy to obtain, when the adjusting block 19 needs to be adjusted in the vertical direction, the adjusting block 19 can be moved upwards or downwards after the stud is screwed out, after the adjusting block is in place, the adjusting block 19 can be stably installed on the sliding block 17 through screwing in the lock column 24 and enabling the adjusting block to be matched and locked with the lock hole 22, the operation is simple, and the use is flexible and convenient.

In one embodiment, a push rod 25 is rotatably mounted on the adjusting block 19, the extending direction of the push rod 25 is the same as the extending direction of the slide rod 16, a baffle 26 for abutting against both sides of the adjusting block 19 is arranged at one end of the push rod 25 penetrating through the adjusting block 19, another rotating handle 14 is arranged at one end of the push rod 25 far away from the adjusting block 19, and a chain wheel 6 is rotatably mounted on the push rod 25.

Specifically, as shown in fig. 1 to 3, in the utility model relates to a chain grinding machine 100, push rod 25 in adjustable shelf 5 extends along the fore-and-aft direction, and the front end of push rod 25 passes regulating block 19 and is provided with baffle 26 in the position of regulating block 19 front and back both sides, the rear end of push rod 25 is provided with another rotation handle 14, when needs adjust adjustable shelf 5, the operator can drive whole adjustable shelf 5 relative mount 4 and remove along the fore-and-aft direction through promoting push rod 25 left or right, realizes the feeding coping of chain cutter along the fore-and-aft direction on the adjustable shelf 5.

In an embodiment, the movable frame 5 further includes a mounting rod 27, the mounting rod 27 is vertically disposed on one side of the sliding block 17 close to the workbench 1, two adjusting handles 28 are sequentially arranged on the mounting rod 27 at intervals along a direction away from the sliding block 17, the two adjusting handles 28 are rotatably mounted on the mounting rod 27, a mounting sleeve 29 is sleeved between the two adjusting handles 28, another chain wheel 6 is disposed on the mounting sleeve 29 at a position corresponding to the chain wheel 6, and an elastic member 30 is disposed between the mounting sleeve 29 and the fixed handle.

Specifically, as shown in fig. 3, the mounting rod 27 in the movable frame 5 is vertically disposed on the lower side surface of the sliding block 17, and two adjusting handles 28 are sequentially disposed on the mounting rod 27 at intervals along the up-down direction, the two adjusting handles 28 are rotatably mounted on the mounting rod 27, that is, a thread section is formed near the lower end of the mounting rod 27, screw holes are formed in the two adjusting handles 28, and the two adjusting handles 28 are sleeved on the mounting rod 27 and are in threaded fit with the mounting rod 27, so that the distance between the two adjusting handles 28 can be adjusted by rotating the adjusting handles 28 upwards or downwards, and the operation is flexible.

Further, the cover is equipped with installation sleeve 29 between two regulation handles 28, and also installs another sprocket 6 in the position that corresponds sprocket 6 on the push rod 25 on the installation sleeve 29 to make the chain cutter can cooperate and install to the adjustable shelf 5 with the sprocket 6 on push rod 25 and the installation sleeve 29 on, can drive the synchronous rotation of chain cutter when this installation and the rotation sprocket 6 that realize the chain cutter, realize the coping to many places chain cutter blade.

As will be appreciated, since the elastic member 30 is further disposed between the mounting sleeve 29 and the upper adjusting handle 28, the elastic member 30 can be selected from a spring in the prior art, and the spring has a characteristic of strong elastic deformation force, and the mounting sleeve 29 can be always abutted against the lower adjusting wrench under the elastic action of the spring, thereby facilitating the adjustment of the tensioning degree of the chain cutter.

In one embodiment, as shown in FIG. 3, the knife sharpener 3 has a grinding wheel 31, and a protective shield 32 is provided outside the grinding wheel 31. Specifically, the emery wheel 31 of sharpedge grinding machine 3 can choose for use the characteristics that single hypotenuse carborundum emery wheel 31 among the prior art, single hypotenuse carborundum emery wheel 31 has hardness height, compressive strength height and wear resistance are good to not only do benefit to and carry out the coping to it with chain cutter blade butt, still prolonged emery wheel 31's life, improved the utility model relates to a chain grinding machine 100's reliability in utilization. Further, a protective cover 32 is provided outside the grinding wheel 31, thereby preventing a safety accident caused by an operator accidentally touching the grinding wheel 31 when the grinding wheel 31 is rotated, and protecting the operator.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a chain grinding machine, chain grinding machine is used for coping chain tapping machine's chain cutter which characterized in that includes: workstation (1) with set up in installation component (2) on workstation (1) and knife sharpener (3) that are used for coping chain cutting edge, installation component (2) are including mount (4) and adjustable shelf (5), knife sharpener (3) movably install in on mount (4), install two sprocket (6) that are used for the tensioning or loosen the chain cutter on adjustable shelf (5), adjustable shelf (5) with mount (4) swing joint, just adjustable shelf (5) can be relative mount (4) are followed the extending direction of workstation (1) removes.

2. The chain grinding machine according to claim 1, wherein the fixing frame (4) comprises a base (7), a connecting seat (8) and an L-shaped vertical plate (9) for installing the knife grinder (3), the connecting seat (8) is arranged on the base (7), a limiting boss (10) is formed on one side, away from the base (7), of the connecting seat (8), a first sliding groove (11) extending in the direction away from the movable frame (5) is formed in a position, corresponding to the limiting boss (10), on the L-shaped vertical plate (9), and the limiting boss (10) can extend into the first sliding groove (11) and is in sliding contact fit with the first sliding groove (11).

3. The chain grinding machine as claimed in claim 2, characterized in that an adjusting rod (12) is rotatably mounted on the connecting base (8), a mounting block (13) is disposed on one side of the L-shaped vertical plate (9) facing the base (7), one end of the adjusting rod (12) passes through the connecting base (8) and is connected with the mounting block (13) so that the adjusting rod (12) can drive the L-shaped vertical plate (9) to approach or depart from the movable frame (5), and a rotating handle (14) is disposed at the other end of the adjusting rod (12).

4. The chain grinding machine as claimed in claim 3, characterized in that the base (7) comprises two vertical plates (15) arranged at intervals along the extension direction of the working table (1), a sliding rod (16) is arranged between the two vertical plates (15), the movable frame (5) comprises a sliding block (17), and the sliding block (17) is provided with an opening

The sliding rod (16) is provided with a mounting hole (18) for the sliding rod (16) to pass through, and the sliding rod (16) is in sliding contact fit with the mounting hole (18) so that the sliding block (17) can move relative to the vertical plate (15) along the extending direction of the sliding rod (16).

5. The chain grinding machine as claimed in claim 4, wherein the movable frame (5) further comprises an adjusting block (19), the adjusting block (19) is arranged on one side, far away from the workbench (1), of the sliding block (17), a guide rod (20) is vertically arranged on the sliding block (17), a through hole (21) matched with the guide rod (20) in a sliding contact mode is formed in the adjusting block (19), a lock hole (22) is formed in one side, far away from the base (7), of the sliding block (17), a second sliding groove (23) is formed in the position, corresponding to the lock hole (22), of the adjusting block (19), a lock column (24) is arranged on the sliding block (17), and the lock column (24) penetrates through the second sliding groove (23) and is matched with the lock hole (22) to lock the adjusting block (19) to the sliding block (17).

6. The chain grinding machine as claimed in claim 5, characterized in that a push rod (25) is rotatably mounted on the adjusting block (19), the extending direction of the push rod (25) is consistent with the extending direction of the slide rod (16), a baffle (26) for abutting against two sides of the adjusting block (19) is arranged at one end of the push rod (25) penetrating through the adjusting block (19), another rotating handle (14) is arranged at one end of the push rod (25) far away from the adjusting block (19), and the chain wheel (6) is mounted on the push rod (25).

7. The chain grinding machine as claimed in claim 4, wherein the movable frame (5) further comprises a mounting rod (27), the mounting rod (27) is vertically arranged on one side, close to the workbench (1), of the sliding block (17), two adjusting handles (28) are sequentially arranged on the mounting rod (27) at intervals along the direction away from the sliding block (17), the two adjusting handles (28) are rotatably arranged on the mounting rod (27), a mounting sleeve (29) is sleeved between the two adjusting handles (28), another chain wheel (6) is arranged on the mounting sleeve (29) corresponding to one position of the chain wheel (6), and an elastic piece (30) is arranged between the mounting sleeve (29) and the adjusting handles.

8. A chain sharpener according to any one of claims 1-7, wherein the sharpener (3) has a grinding wheel (31), and a protective cover (32) is provided outside the grinding wheel (31).