CN218947119U - Blade sharpening device - Google Patents

Abstract

The utility model relates to a blade grinding device, which includes a base, a grinding wheel, a knife seat and a first drive mechanism for driving the knife seat to move laterally. A knife bar extending toward the grinding wheel is mounted on the knife seat. A recessed area for placing the blade to be ground is designed on the peripheral surface of the extension end; at the same time, it also includes a second drive mechanism that can drive the knife seat to rotate up and down and a third drive mechanism to drive the knife seat to rotate horizontally. The second drive mechanism is installed in a The tool seat is connected to the output end of the second drive mechanism; the third drive mechanism includes a driving bevel gear and a driven bevel gear that mesh with each other, and the driving bevel gear is supported on the cover through a horizontal shaft. On the body, the driven bevel gear is fixed to the turntable through the vertical shaft, the turntable is placed on the movable seat, the movable seat can move laterally on the base, and a first driving mechanism is arranged between the movable seat and the base. Provided is a blade sharpening device capable of one-time clamping and multiple adjustments to realize blade sharpening.

Description

Blade sharpening device

technical field

The utility model relates to a grinding device, in particular to a blade grinding device for grinding small blades.

Background technique

The blade is a common tool in machining. In order to ensure the machining accuracy, the geometric accuracy of the blade is required to be high. In the machining process, the blade will inevitably wear out. When it is worn to a certain extent, if it is not repaired, it can no longer be used, and it is in a scrapped state. In this way, the utilization rate of the blade is low, which will lead to the increase of production cost. For this reason, people have designed blade sharpening device, and just disclosed such a kind of blade sharpening device in the document of CN208854300U as the Chinese patent authorization announcement number, and it comprises longitudinal movement mechanism, base, lateral movement mechanism and yaw mechanism , the longitudinal movement mechanism includes a first support frame, a first bearing seat, a first fixed seat, a first screw rod and a first rotating disk; the lateral movement mechanism includes a second support frame, a second bearing seat, a second fixed seat, a first Two screw rods and the second rotating disk; the yaw mechanism includes a pressing body, a ball screw and a lock nut. The bottom of the pressing body is provided with a semicircular arc groove matching the ball part of the ball screw, and the ball screw A lock nut is sleeved on the shaft part between the second fixed seat, and the internal thread on the lock nut is threadedly connected with the external thread at the bottom of the pressing tool body, so that the ball end of the ball screw Part of it is fitted in the semicircular arc groove at the bottom of the press body, and the lock nut can be screwed so that the ball head part of the ball screw can be in a sliding fit state or locked in the semicircle arc groove at the bottom of the press body. dead state. With such a device, one clamping can be realized, and then multiple adjustments can be made through the longitudinal movement mechanism, the lateral movement mechanism and the yaw mechanism, and the blade can be sharpened, so as to improve the grinding quality and improve the utilization rate of the blade ,reduce manufacturing cost.

Utility model content

The technical problem to be solved by the utility model is to provide a blade sharpening device which can also realize blade sharpening by one-time clamping and multiple adjustments in view of the current state of the prior art.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a blade grinding device, including a base, a grinding wheel, a knife seat for carrying the blade to be ground and a first drive mechanism for driving the knife seat to move laterally, It is characterized in that a cutter bar extending toward the grinding wheel is clamped on the knife seat, and a concave area for placing the blade to be ground is designed on the extended end peripheral surface of the knife bar; The second drive mechanism for turning the knife seat and the knife bar up and down and the third drive mechanism for driving the knife seat and the knife bar to rotate horizontally, the second drive mechanism is installed in a cover resting on the movable seat, and the The tool holder is connected to the output end of the second drive mechanism; the third drive mechanism includes a driving bevel gear and a driven bevel gear that mesh with each other, wherein the driving bevel gear is supported on the cover through a horizontal shaft, and the The driven bevel gear is fixed to the turntable through a vertical shaft, and the turntable is placed on the movable seat, which can move laterally on the base, and the second movable seat is arranged between the movable seat and the base. a drive mechanism.

More preferably, the first drive mechanism includes a gear installed in the movable seat through a gear shaft and a rack on the base that meshes with the gear, and a gear located on the gear shaft is installed on the gear shaft. Hand wheel outside the movable seat. This driving method has simple structure and low cost.

Likewise, it is further preferred that the second drive mechanism may include a rotating shaft rotatably supported on the cover and an operating wheel mounted on one end of the rotating shaft and outside the cover, and the knife seat is installed on the rotating shaft another side.

In order to conveniently locate the rotating shaft at a desired position, a screw hole is opened on the top of the cover, and a limit bolt capable of abutting against the rotating shaft is screwed into the screw hole.

In order to intuitively obtain the rotation angle of the rotating shaft, a dial located outside the cover is sheathed on the other end of the rotating shaft, and an indicator line corresponding to the dial is designed on the cover.

Considering the convenience of connection, a tapered magnetic suction head is provided on the knife seat, and a tapered hole for inserting the tapered magnetic suction head is provided on the other end of the rotating shaft. Suction in the tapered hole.

In each of the above-mentioned solutions, it is further improved that an annular retaining ring extending downward is fixed on the turntable, a base is provided on the movable seat, and a ring is provided on the top surface of the base for the annular retaining ring to sit on. An annular groove, and balls distributed along the circumferential interval are arranged between the annular retaining ring and the annular groove.

For the convenience of clamping, the clamping end of the cutter bar is designed to have a polygonal cross-section. There are multiple recessed areas on the extension end of the tool bar, which are distributed at intervals along the circumferential direction, and each recessed area is provided with a There are mounting holes for fixing the blades so that multiple blades can be sharpened at the same time.

In order to make the clamping more stable, there are slots on the adjacent sides of the knife seat that are connected to each other and can be inserted into the clamping end of the knife bar, and on the top surface of the knife seat, a plurality of The clamping end surface of the shank abuts against the locking bolt.

In each of the above-mentioned solutions, two guide grooves distributed at intervals and extending along the lateral movement direction of the knife seat are opened on the upper surface of the base, and guide pieces that can be inserted into the corresponding guide grooves are provided on the bottom of the movable seat. , to ensure the stability and smoothness of the movement of the movable seat.

Compared with the prior art, since the second and third driving mechanisms are added in the utility model, the second and third driving mechanisms can be used to conveniently change the angle of the blade during grinding, so as to realize one-time clamping and multiple The purpose of grinding. At the same time, the precise positioning of the blade and the synchronous grinding of multiple blades can be realized through the cooperation of the knife rod and the knife seat, so that the utility model has high grinding efficiency and good precision.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the utility model embodiment;

Fig. 2 is the three-dimensional schematic diagram of another angle of the utility model embodiment;

Fig. 3 is a three-dimensional schematic diagram after removing the cover body in Fig. 1;

Fig. 4 is a schematic perspective view of another angle state of Fig. 3;

Fig. 5 is a schematic cross-sectional view of an embodiment of the present invention;

Fig. 6 is a three-dimensional schematic diagram of another embodiment of the utility model;

FIG. 7 is a schematic projection view of FIG. 6 .

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions.

In describing the present utility model, it should be understood that the terms "long", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", "width", "high" etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the utility model and simplifying the description, and It is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and since the disclosed embodiments of the present invention may be arranged in different orientations, these directional terms are used for illustration only. It should not be regarded as a limitation, for example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of these features.

As shown in Figures 1 to 5, the blade sharpening device includes a base 1, a grinding wheel 2, a knife seat 3, a first drive mechanism 4 for driving the knife seat to move laterally (according to the direction of the arrow in Figure 1), and The second drive mechanism 5 that drives the knife seat to rotate up and down and the third drive mechanism 6 that drives the knife seat to rotate horizontally, wherein the base 1 is designed as a flat plate structure. Emery wheel 2 is installed on the base 1 by emery wheel seat 21, and emery wheel 2 has power source (motor) to drive it to rotate, because this is prior art, does not show in the figure. The knife holder 3 is used to carry the blade 100 to be ground. In the present embodiment, in order to realize precise positioning, the knife holder 3 is clamped with a cutter bar 7 extending toward the grinding wheel 2, and the peripheral surface of the extended end of the cutter bar 7 is designed There is a recessed area 71 for placing the blade to be ground. In the figure, there are two recessed areas 71, which are symmetrically distributed on the peripheral surface of the extended end of the cutter bar 7, and each recessed area is provided with a mounting hole for fixing the blade 100. The clamping end of the cutter bar 7 is designed as a polygonal structure in section, which is a quadrilateral structure in the figure. Correspondingly, on the adjacent side of knife seat 3, there are draw-in grooves 31 that are connected with each other and can be inserted into the clamping end of the knife bar, and on the top surface of knife seat 3, there are many screws that can be connected with the knife bar 7 The locking bolt a1 against the surface of the clamping end. In this way, when clamping, the square flattened structure of the clamping end can be used to fit into the slot 31, and the angle can be adjusted in multiple directions to realize simultaneous grinding of multiple blades.

In order to facilitate the movement of the above-mentioned knife seat 3, in this embodiment, the above-mentioned first driving mechanism 4 is arranged between a movable seat 8 and the base 1, and the movable seat 8 can move laterally on the base 1. Preferably, the first The drive mechanism 4 adopts the structure of a gear 41 and a rack 42, that is, the first drive mechanism 4 includes a gear 41 installed in the movable seat 8 through a gear shaft 43 and a rack on the base 1 that is engaged with the gear 41 42, the rack 42 extends along the lateral movement direction of the tool holder 3, and at the same time, a hand wheel 44 located outside the movable seat 8 is installed on the gear shaft 43, and the driving hand wheel 44 can easily apply force to drive the gear 41 along the tooth The bar 42 rotates forward, and then drives the movable seat 8 to move laterally. In order to ensure the direction of travel of the movable seat 8, two guide grooves 11 are provided on the upper surface of the above-mentioned base 1 and are distributed at intervals and extend along the lateral movement direction of the knife seat. The guide 81 is preferably a guide wheel, which not only ensures the straightness of the movement of the movable seat 8, but also reduces the resistance when moving, so that the movable seat 8 moves more smoothly.

The above-mentioned second drive mechanism 5 includes a rotating shaft 51 rotatably supported on a cover body 9 and an operating wheel 52 mounted on one end of the rotating shaft 51 and positioned outside the cover body 9, wherein the cover body 9 rests on the above-mentioned movable seat 8, And can rotate relative to movable seat 8. The tool holder 3 is installed on the other end of the rotating shaft 51 . Turning the operation wheel 52 like this can drive the knife holder 3 to rotate up and down around the rotating shaft, and then can drive the knife bar 7 and the blade 100 to rotate up and down. In order to keep the rotating shaft 51 at the desired position after being rotated in place, a screw hole is provided on the top of the cover body 9 , and a limit bolt a2 capable of abutting against the rotating shaft 51 is screwed into the screw hole. At the same time, in order to know the rotation angle intuitively, the other end of the rotating shaft 51 is also sleeved with a dial 53 located outside the cover, and an indicator line corresponding to the dial is designed on the cover 9 . And considering the convenience of being connected with the knife seat 3, the knife seat 3 is provided with a tapered magnetic suction head 32, and the other end of the rotating shaft 51 is provided with a tapered hole for the tapered magnetic suction head to insert, so that the magnetic The suction head 32 is magnetically attracted in the tapered hole. In this way, the cooperation between the tapered hole and the tapered head ensures that the two are coaxial, and the magnetic adsorption connection is used to make the connection between the two faster and firmer.

The above-mentioned third driving mechanism 6 preferably adopts the following structure, which includes a driving bevel gear 61 and a driven bevel gear 62 meshing with each other, wherein the driving bevel gear 61 is supported on the cover body 9 by a horizontal shaft 63 and exposed to the cover body 9 An angle control handle 64 is installed on the outer horizontal shaft, and the driven bevel gear 62 is fixed with a rotating disk 66 by a vertical shaft 65, and the rotating disk is placed on the movable seat 8. In order to ensure that the rotating disk 66 is reliably supported on the movable seat 9, the rotating disk 66 is fixed with a downwardly extending annular retaining ring 67, the movable seat 9 is provided with a base 10, and a ring for the annular retaining ring is provided on the top surface of the base. 67 is located in the annular groove 10a, specifically, the base 10 is composed of an annular seat body 101 and an inner ring 102 located in the seat body, and the annular groove 10a is formed at the joint of the two to facilitate assembly . Balls 68 spaced along the circumferential direction are arranged between the above-mentioned annular retaining ring 67 and the annular groove 10a to ensure smooth relative rotation between the two.

When in use, place the blade to be ground in the recessed area of the cutter bar, use the right angles on both sides of the blade as a reference, pass the bolt through the center hole on the blade and connect it to the mounting hole in the recessed area, so as to fasten the blade to be ground. Then insert the clamping end of the knife rod into the slot of the knife seat, and tighten the locking bolt. Then insert the tapered magnetic head of the knife seat into the tapered hole of the rotating shaft to make it firmly adsorbed on the rotating shaft. Then, turn the handle to make the gear move forward along the rack, and drive the movable seat and the cover body on it, the second and third driving mechanisms to move laterally until the tool holder and the knife rod and blade on it approach the grinding wheel laterally. and reach a suitable location. Then turn the angle control handle, drive the driving bevel gear to rotate along the driven bevel gear, drive the cover body to rotate relative to the base and the movable seat below, and then make the knife seat and the knife bar and the blade rotate horizontally to the required position together. According to the thickness and material of the parts processed by the blade, the operation wheel can be rotated to drive the internal rotating shaft to rotate, and the angle can be adjusted accurately through the dial. After the adjustment is completed, the limit bolt can be tightened. The grinding wheel can then be activated to start grinding.

When necessary, a projector 01 can be added under the base. The projection port of the projector 01 is located below the knife bar 7. Please refer to Figure 6 and Figure 7. A reflector 02 placed at 45° and a reflector with the reflector 7 can be installed above the knife bar 7. 02 corresponds to the projection screen 03. Usually, the projection port is covered with a protective cover 04 . Before starting to grind, the protective cover 04 can be opened, and the shape of the blade exposed on the cutter bar can be projected onto the projection screen and recorded. After the grinding is completed, it can be projected again in the same way to compare the size change of the blade before and after grinding. In this way, when the ground blade is installed and cut again, it can provide a reference for the installation position to ensure that the change in the size of the ground blade will not affect the subsequent cutting accuracy.

Claims (10)

1. A blade sharpening device, comprising a base (1), a grinding wheel (2), a knife seat (3) for carrying a blade to be ground, and a first drive mechanism (4) for driving the knife seat to move laterally, It is characterized in that a cutter bar (7) extending toward the grinding wheel is clamped on the cutter seat, and a recessed area (71) for placing the blade to be ground is designed on the extended end peripheral surface of the cutter bar; It includes a second drive mechanism (5) capable of driving the knife seat and the knife bar to rotate up and down and a third drive mechanism (6) that drives the knife seat and the knife bar to rotate horizontally. The second drive mechanism is installed on a Resting in the cover on the movable seat (8), the knife seat (3) is connected to the output end of the second driving mechanism; the third driving mechanism includes a driving bevel gear (61) and a slave A driven bevel gear (62), wherein the driven bevel gear is supported on the cover (9) through a horizontal shaft (63), and the driven bevel gear is fixed to the turntable (66) through a vertical shaft (65), and the The turntable (66) is placed on the movable seat (8), the movable seat can move laterally on the base (1), and the first drive mechanism (4) is arranged between the movable seat and the base . 2. The blade sharpening device according to claim 1, characterized in that: the first drive mechanism (4) includes a gear (41) installed in the movable seat through a gear shaft (43) and a gear located on the base A rack (42) meshed with the gear is installed on the gear shaft (43), and a hand wheel (44) outside the movable seat is installed on the gear shaft (43). 3. The blade sharpening device according to claim 1, characterized in that: the second drive mechanism (5) includes a rotating shaft (51) rotatably supported on the cover body and is installed at one end of the rotating shaft and located at the The operating wheel (52) outside the cover, the knife seat (3) is installed on the other end of the rotating shaft (51). 4. The blade sharpening device according to claim 3, characterized in that: the top of the cover (9) is also provided with a screw hole, and a limit stop capable of abutting against the rotating shaft is threaded in the screw hole. Bolt (a2). 5. The blade sharpening device according to claim 3, characterized in that: the other end of the rotating shaft (51) is also sleeved with a dial (53) located outside the cover, on the cover (9) There is an indicator line corresponding to the dial (53) on the top. 6. The blade sharpening device according to claim 3, characterized in that: a conical magnetic suction head (32) is provided on the knife holder (3), and a A tapered hole for inserting the tapered magnetic suction head, and the magnetic suction head is magnetically attracted in the tapered hole. 7. The blade sharpening device according to claim 1, characterized in that: an annular retaining ring (67) extending downward is fixed on the turntable (66), and a base is provided on the movable seat (8) (10), the top surface of the base is provided with an annular groove (10a) for the annular retaining ring to be seated, and balls (68) distributed along the circumferential interval are arranged between the annular retaining ring and the annular groove . 8. The blade sharpening device according to claim 1, characterized in that: the clamping end of the knife rod (7) is designed to have a polygonal cross-section, and the recessed area ( 71) There are a plurality of them, which are respectively distributed at intervals along the circumferential direction, and each recessed area is provided with a mounting hole for fixing the blade. 9. The blade sharpening device according to claim 8, characterized in that: the adjacent side surfaces of the knife seat (3) are provided with slots (31) which penetrate each other and can be inserted into the clamping end of the knife rod , and a plurality of locking bolts (a1) capable of abutting against the surface of the clamping end of the knife shank are threaded on the top surface of the knife holder. 10. The blade sharpening device according to any one of claims 1 to 9, characterized in that two guide grooves (11) distributed at intervals and extending along the lateral movement direction of the tool seat are formed on the upper surface of the base ), the bottom of the movable seat is provided with a guide (81) that can be inserted into the corresponding guide groove.

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