CN211277825U

CN211277825U - Abrasive belt grinding mechanism

Info

Publication number: CN211277825U
Application number: CN201921981000.9U
Authority: CN
Inventors: 何锟; 何鑫
Original assignee: Jiangmen Quanda Machinery Manufacturing Co ltd
Current assignee: Jiangmen Quanda Machinery Manufacturing Co ltd
Priority date: 2019-11-17
Filing date: 2019-11-17
Publication date: 2020-08-18
Anticipated expiration: 2029-11-17

Abstract

The utility model provides an abrasive band grinds mechanism, abrasive band wheel portion and tensioning wheel portion in frame, the main pivot of abrasive band motor is fixed with the abrasive band wheel, can drive the relative abrasive band wheel back-and-forth movement of tensioning support through fixing the tensioning cylinder in the frame, makes things convenient for the dismouting abrasive band like this. One end of a tension wheel on the tension support is rotationally fixed, the other end of the tension wheel is a free end, two front adjusting screw rods and two rear adjusting screw rods are transversely arranged in front of and behind the tension support and tightly abut against the front and the rear of the free end of the tension shaft, the distances between the front adjusting screw rods and the rear adjusting screw rods and the free ends of the tension shaft can be adjusted when the front adjusting screw rods and the rear adjusting screw rods are adjusted, and the other end of the tension shaft is rotated, so that the axial balance degree between the tension shaft and the main rotating shaft 22 is equivalently adjusted, and the inclination angle of an abrasive belt on the. The mechanism has simple structure and convenient adjustment, can effectively ensure that the abrasive belt can be always tightly attached to the abrasive belt wheel in the working process, and avoids the accident of abrasive belt separation.

Description

Abrasive belt grinding mechanism

Technical Field

The utility model relates to a grinding device technical field, especially a mechanism is ground to abrasive band.

Background

The abrasive belt grinding process is to grind the surface of a workpiece partially or wholly through an abrasive belt running at a high speed, and the surface of the workpiece is usually a cylindrical surface, a conical surface, a spherical surface or other profiles, and the surface is also ground roughly and finely. In order to realize high-speed rotation of the abrasive belt, the abrasive belt is usually sleeved outside the abrasive belt wheel and the tensioning wheel, and the abrasive belt wheel is driven by the motor to rotate and then drives the abrasive belt and the tensioning wheel to rotate. Because the abrasive belt is sleeved outside the abrasive belt wheel and the tension wheel which rotate simultaneously, if the rotation centers of the abrasive belt wheel and the tension wheel are not balanced during installation, the abrasive belt deviates relative to the abrasive belt wheel during operation, so that the actual effective working surface is reduced, and even the accident that the abrasive belt is separated from equipment to be damaged can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure, can conveniently adjust the abrasive band grinding mechanism of take-up pulley rotation axis direction to the not enough of above-mentioned prior art to solve the problem that proposes among the above-mentioned prior art.

The utility model discloses a realize above-mentioned purpose like this:

the utility model provides an abrasive band grinds mechanism, includes the frame, fixes the abrasive band wheel portion and the tight pulley portion of tensioning wheel of frame both sides, abrasive band wheel portion include the abrasive band motor and with the vertical main pivot fixed connection's of abrasive band motor abrasive band wheel, tight pulley portion is including fixing tensioning cylinder in the frame, tensioning cylinder's telescopic end is fixed with can be relative the tensioning support of abrasive band wheel back-and-forth movement, vertically be equipped with the tensioning axle on the tensioning support, the last rotatable take-up pulley that is fixed with of tensioning axle, the one end of tensioning axle is rotated and is fixed on the tensioning support, tightly support respectively along transversely being equipped with two preceding adjusting screw and back adjusting screw on the tensioning support the front and back of tensioning axle free end, abrasive band wheel and take-up pulley overcoat are equipped with the abrasive band.

Further, the tensioning support is horizontal U-shaped, including last diaphragm, riser and lower diaphragm, be equipped with the adjusting hole on going up the diaphragm, the tensioning axle upper end certainly the adjusting hole stretches out, go up the diaphragm and upwards extend the back regulating plate that has the back regulation screw, back adjusting screw passes the back regulation screw, it is equipped with preceding regulation screw to go up the diaphragm outer end, preceding adjusting screw passes preceding regulation screw.

Further, still include the work piece clamping part, the clamping part includes that work piece support, rotatable fixing press the seat on work piece base and the work piece on the work piece support, be equipped with downwardly extending's lower pivot on the work piece base, the lower pivot passes work piece support's horizontal bottom plate is connected with the work piece motor, still be fixed with the reciprocal cylinder of straight line on the work piece support, the last flexible end of the reciprocal cylinder of straight line is connected with a layer board, be equipped with the last pivot that upwards extends on pressing the seat on the work piece, it is rotatable to fix to go up the pivot on the layer board, it is relative to go up the pivot with the axle center rotation down.

Furthermore, the workpiece support is L-shaped, a sliding rail is longitudinally arranged on a vertical frame of the support, a sliding block corresponding to the sliding rail is longitudinally arranged on the top supporting plate, and the linear reciprocating cylinder is fixed on the vertical frame.

Furthermore, the upper telescopic end is a piston rod with an upward cylinder, the free end of the piston rod is fixedly connected with the bottom of the top supporting plate, a through hole for the cylinder stroke adjusting rod to pass through is formed in the bottom supporting plate, and the workpiece motor is a servo motor.

Further, the clamping part still includes the regulation frame, be equipped with horizontal adjusting motor in the regulation frame, adjusting motor's output pass through the reduction gear with the grudging post middle part is connected, in order to realize the horizontal rotation of clamping part is adjusted, adjusting motor is servo motor.

The utility model has the advantages that: the utility model provides an abrasive band grinds mechanism, abrasive band wheel portion and tensioning wheel portion in frame, the main pivot of abrasive band motor is fixed with the abrasive band wheel, can drive the relative abrasive band wheel back-and-forth movement of tensioning support through fixing the tensioning cylinder in the frame, makes things convenient for the dismouting abrasive band like this. One end of a tension wheel on the tension support is rotationally fixed, the other end of the tension wheel is a free end, two front adjusting screw rods and two rear adjusting screw rods are transversely arranged in the front and the rear of the tension support and tightly abut against the front and the rear of the free end of the tension shaft, the distances of the front adjusting screw rods and the rear adjusting screw rods relative to the free end of the tension shaft can be adjusted when the front adjusting screw rods and the rear adjusting screw rods are adjusted, and the other end of the tension shaft is rotated, so that the shaft balance degree of the tension shaft and the main rotating shaft is equivalently adjusted, and the inclination angle of an abrasive. The mechanism has simple structure and convenient adjustment, can effectively ensure that the abrasive belt can be always tightly attached to the abrasive belt wheel in the working process, and avoids the accident of abrasive belt separation.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the tensioner portion of FIG. 1 in another orientation;

FIG. 3 is a partial structural view of the clamping portion of FIG. 1 in another direction;

fig. 4 is a schematic side view of another embodiment of the clamping portion.

In the figure, 1 frame, 21 belt motor, 22 main rotating shaft, 23 belt wheel, 31 tensioning cylinder, 32 tensioning bracket, 321 upper transverse plate, 322 vertical plate, 323 lower transverse plate, 324 adjusting through hole, 326 rear adjusting plate, 33 tensioning shaft, 34 tensioning wheel, 35 front adjusting screw, 36 rear adjusting screw, 4 belt, 51 workpiece bracket, 511 bottom supporting plate, 512 top supporting plate, 513 vertical frame, 515 supporting plate, 52 workpiece base, 521 lower rotating shaft, 53 workpiece upper pressing seat, 531 upper rotating shaft, 54 workpiece motor, 55 linear reciprocating cylinder, 551 adjusting rod, 6 slide rail, 7 slide block, 8 adjusting frame, 81 adjusting motor.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in figures 1 to 4, the belt grinding mechanism of the present invention comprises a frame 1, a belt wheel portion and a tension wheel portion fixed on both sides of the frame 1, the abrasive belt wheel part comprises an abrasive belt motor 21 and an abrasive belt wheel 23 fixedly connected with a longitudinal main rotating shaft 22 of the abrasive belt motor 21, the tensioning wheel part comprises a tensioning cylinder 31 fixed on the frame 1, a tensioning bracket 32 which can move back and forth relative to the abrasive belt wheel 23 is fixed at the telescopic end of the tensioning cylinder 31, a tension shaft 33 is longitudinally arranged on the tension bracket 32, a tension wheel 34 is rotatably fixed on the tension shaft 33, one end of the tensioning shaft 33 is rotationally fixed on the tensioning bracket 32, two front adjusting screws 35 and two rear adjusting screws 36 are transversely arranged on the tensioning bracket 32 and respectively tightly abut against the front and the rear of the free end of the tensioning shaft 33, and the abrasive belt 4 is sleeved outside the abrasive belt wheel 23 and the tensioning wheel 34.

The main rotating shaft 22 of the fixed abrasive belt wheel 23 is parallel to the tensioning shaft 33 of the fixed tensioning wheel 34, the lower end of the tensioning shaft 33 is hinged to the tensioning support 32 through a small rotating shaft, the upper end of the tensioning shaft 33 is a free end, the front end and the rear end of the tensioning shaft 33 are respectively and tightly abutted to the front adjusting screw 35 and the rear adjusting screw 36, the free end of the tensioning shaft 33 can rotate around the lower end through adjustment, the parallelism between the tensioning shaft 33 and the main rotating shaft 22 is adjusted, and the abrasive belt 4 is guaranteed to be always kept in parallel fit with the abrasive belt wheel 23 during operation.

Tensioning support 32 is horizontal U-shaped, including last diaphragm 321, riser 322 and lower diaphragm 323, be equipped with on the last diaphragm 321 and adjust through-hole 324, tensioning shaft 33 upper end certainly adjust through-hole 324 stretches out, it upwards extends the back regulating plate 326 that has back regulation screw 325 to go up diaphragm 321, back adjusting screw 36 passes back regulation screw, it is equipped with preceding regulation screw 327 to go up diaphragm 321 outer end, preceding adjusting screw 35 passes preceding regulation screw.

The front adjusting screw 35 and the rear adjusting screw 36 are staggered up and down in the front and back of the free end of the tensioning shaft 33 respectively, and the device is more stable.

Still include the work piece clamping part, the clamping part includes that work piece support 51, rotatable the fixing press seat 53 on work piece base 52 and the work piece on the work piece support 51, be equipped with downwardly extending's lower pivot 521 on the work piece base 52, pivot 521 passes down the horizontal bottom plate 511 of work piece support 51 is connected with work piece motor 54, still be fixed with straight reciprocating cylinder 55 on the work piece support 51, the last flexible end of straight reciprocating cylinder 55 is connected with top layer board 512, be equipped with upward extension's last pivot 531 on the work piece on the press seat 53, go up pivot 531 rotatable the fixing on top layer board 512, go up pivot 531 for pivot 521 coaxial-center rotation down.

The clamping part has two functions, namely, the clamping part replaces hands to fix a workpiece to be processed, and the clamping part switches directions in the grinding process according to the grinding process requirement. After the workpiece is placed on the workpiece base 52, the upper telescopic end of the linear reciprocating cylinder 55 drives the top supporting plate 512 to move downwards, so that the workpiece upper pressing seat 53 on the top supporting plate 512 downwards presses the top of the workpiece until the workpiece is prevented from falling off. The lower rotating shaft 521 under the workpiece base 52 can directly penetrate through a hole on the bottom support plate 511, the inner diameter of which is larger than that of the lower rotating shaft 521, so as to realize rotatable connection, or can realize rotatable connection through a bearing installed on the bottom support plate 511, the workpiece motor 54 under the bottom support plate 511 outputs power to the lower rotating shaft 521, so that the lower rotating shaft 521 drives the workpiece to rotate, the upper rotating shaft 531 and the workpiece upper pressing seat 53 can refer to the lower rotating shaft 521 in a rotatable fixing mode, and thus the upper rotating shaft 531 can rotate coaxially relative to the lower rotating shaft 521.

The workpiece support 51 is L-shaped, a sliding rail 6 is longitudinally arranged on the vertical frame 513 of the support, a sliding block 7 corresponding to the sliding rail 6 is longitudinally arranged on the top supporting plate 512, and the linear reciprocating cylinder 55 is fixed on the vertical frame 513.

The L-shaped support makes the clamping part form a compact whole, the slide rail 6 and the slide block 7 are matched to make the up-and-down movement of the top supporting plate 512 more stable and accurate, a vertical supporting plate 515 is additionally arranged on one side, close to the vertical frame 513, of the top supporting plate 512 in a specific installation mode, two corresponding slide rails 6 are longitudinally fixed on the vertical frame 513 through two slide blocks 7 which are equally fixed on the back surface of the supporting plate 515, a transverse U-shaped frame 516 is further fixed below the supporting plate 515, the upper connecting surface of the U-shaped frame 516 is fixed below the supporting plate 515, the lower connecting surface of the U-shaped frame 516 is fixed with the upper telescopic end of the linear reciprocating cylinder 55, the side surface of the U-shaped frame 516 can abut against the inner side of the vertical frame 513 between the two slide rails 6. In order to make the connection between the top supporting plate 512 and the supporting plate 515 and the connection between the bottom supporting plate 511 and the vertical frame 513 more firm, reinforcing ribs may be additionally installed at the corners thereof.

The upper telescopic end is a piston rod with an upward cylinder, the free end of the piston rod is fixedly connected with the bottom of the top supporting plate 512, a through hole for the cylinder stroke adjusting rod 551 to pass through is formed in the bottom supporting plate 511, and the workpiece motor 54 is a servo motor.

The servo motor is adopted, so that the grinding operation can be controlled in a general mode through a numerical control system conveniently, and the use is very convenient.

The clamping part further comprises an adjusting rack 8, a transverse adjusting motor 81 is arranged on the adjusting rack 8, the output end of the adjusting motor 81 is connected with the middle of the vertical frame 513 through a speed reducer, so that transverse rotation adjustment of the clamping part is achieved, and the adjusting motor 81 is a servo motor

When the workpiece to be machined is a conical surface or a shape with a changed outer diameter, the whole clamping part can be driven by the adjusting motor 81 to transversely rotate by a corresponding angle, so that the surface of the corresponding workpiece to be machined is always close to the grinding belt 4.

The above embodiments only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present invention, it should be noted that, for those skilled in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and a plurality of variations and improvements can be made, which all belong to the protection scope of the present invention, therefore, all the equivalent changes and modifications made by the present invention shall belong to the protection scope of the present invention.

Claims

1. A belt grinding mechanism, characterized in that: including frame (1), fix abrasive band wheel portion and tight pulley portion of frame (1) both sides, abrasive band wheel portion include abrasive band motor (21) and with abrasive band motor's (21) vertical main rotating shaft (22) fixed connection's abrasive band wheel (23), tight pulley portion is including fixing tensioning cylinder (31) on frame (1), the flexible end of tensioning cylinder (31) is fixed with can be relative tensioning support (32) of abrasive band wheel (23) back-and-forth movement, vertically be equipped with tensioning shaft (33) on tensioning support (32), rotatable take-up pulley (34) that is fixed on tensioning shaft (33), the one end rotation of tensioning shaft (33) is fixed on tensioning support (32), tensioning support (32) are gone up along transversely being equipped with two preceding adjusting screw (35) and back adjusting screw (36) and tightly support respectively the front and back of tensioning shaft (33) free end, and the abrasive belt (4) is sleeved outside the abrasive belt wheel (23) and the tension wheel (34).

2. The belt grinding mechanism of claim 1, wherein: tensioning support (32) are horizontal U-shaped, including last diaphragm (321), riser (322) and lower diaphragm (323), be equipped with on going up diaphragm (321) and adjust through-hole (324), tensioning axle (33) upper end certainly adjust through-hole (324) and stretch out, it upwards extends back regulating plate (326) that have the back regulation screw hole to go up diaphragm (321), back adjusting screw (36) are passed the back regulation screw hole, it is equipped with preceding regulation screw hole to go up diaphragm (321) outer end, preceding adjusting screw (35) are passed preceding regulation screw hole.

3. The belt grinding mechanism of claim 1, wherein: still include the work piece clamping part, the clamping part includes work piece support (51), the rotatable fixing press seat (53) on work piece base (52) and the work piece on work piece support (51), be equipped with downwardly extending's lower pivot (521) on work piece base (52), pivot (521) pass down horizontal bottom plate (511) and the work piece motor (54) of work piece support (51) are connected, still be fixed with straight reciprocating cylinder (55) on work piece support (51), the last flexible end of straight reciprocating cylinder (55) is connected with top layer board (512), be equipped with upward extending last pivot (531) on press seat (53) on the work piece, go up pivot (531) rotatable fixing on top layer board (512), go up pivot (531) for pivot (521) coaxial core rotates down.

4. The belt grinding mechanism of claim 3, wherein: the workpiece support (51) is L-shaped, a sliding rail (6) is longitudinally arranged on a vertical frame (513) of the support, a sliding block (7) corresponding to the sliding rail (6) is longitudinally arranged on a top supporting plate (512), and the linear reciprocating cylinder (55) is fixed on the vertical frame (513).

5. The belt grinding mechanism of claim 3, wherein: the upper telescopic end is a piston rod with an upward cylinder, the free end of the piston rod is fixedly connected with the bottom of the top supporting plate (512), a through hole for the cylinder stroke adjusting rod (551) to pass through is formed in the bottom supporting plate (511), and the workpiece motor (54) is a servo motor.

6. The belt grinding mechanism of claim 4, wherein: the clamping part is characterized by further comprising an adjusting rack (8), a transverse adjusting motor (81) is arranged on the adjusting rack (8), the output end of the adjusting motor (81) is connected with the middle of the vertical frame (513) through a speed reducer, so that transverse rotation adjustment of the clamping part is achieved, and the adjusting motor (81) is a servo motor.