Guide wheel supporting structure of loop wire cutting machine

Abstract

The utility model provides a guide wheel supporting structure of a loop wire cutting machine, and belongs to the technical field of loop wire cutting machines. The problem that the stability of the guide wheel is poor on the premise that the guide wheel of the loop wire cutting machine is convenient to assemble and disassemble is solved. According to the guide wheel supporting structure of the loop wire cutting machine, the loop wire cutting machine comprises a support and a guide wheel capable of tensioning a cutting wire, a cantilever is fixedly connected to the support, a mounting hole is formed in the cantilever, and the guide wheel supporting structure comprises a fixed bearing seat fixedly connected to the support and a movable bearing seat arranged in the mounting hole in a penetrating mode. The guide wheel supporting structure comprises a fixed bearing seat and a movable bearing seat, a driving shaft allowing a guide wheel to be sleeved is arranged in the fixed bearing seat in a penetrating mode, a supporting shaft is arranged in the movable bearing seat in a penetrating mode, a connecting counter bore is formed in the supporting shaft in the axial direction, the guide wheel supporting structure further comprises a connecting screw, one end of the connecting screw penetrates out of the connecting counter bore and is fixedly connected with the driving shaft in the axial direction, and the supporting shaft tightly presses the guide wheel on the driving shaft in the axial direction. The guide wheel supporting structure of the loop wire cutting machine is convenient to install and maintain, and meanwhile stable cutting can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ring line cutting machine technical field relates to a ring line cutting machine's guide pulley support structure. BACKGROUND

[0002] The ring line cutting machine is used for cutting the slice, the truncation and the special-shaped cutting of silicon carbide, graphite boat piece, honeycomb ceramic and other materials. The guide pulley part is the main part of the ring line cutting machine, which is composed of a guide pulley frame, a support structure and a guide pulley. The cutting line is wound around the multiple guide pulleys with wire grooves. The motor drives the guide pulley to rotate, and the cutting line between two adjacent guide pulleys can cut the above-mentioned materials. However, the wire groove of the guide pulley is easy to wear after a long time of cutting, which affects the cutting precision. Therefore, the guide pulley needs to be replaced frequently.

[0003] For example, Chinese patent application

Grant Announcement No. CN205522032U

[0004] The above structure can replace the cutting wheel (or guide pulley) on the driving wheel shaft by taking out the dust cover. Although the installation and replacement of the guide pulley or steel wire are relatively convenient, one end of the driving wheel shaft is suspended, which leads to poor stability and affects the slicing quality and service life. UTILITY MODEL CONTENTS

[0005] The utility model aims at the above-mentioned problems existing in the prior art and provides a guide pulley support structure of a ring line cutting machine. The technical problem to be solved by the utility model is to solve the problem of poor stability of the guide pulley under the premise of ensuring the convenient installation and removal of the guide pulley of the ring line cutting machine.

[0006] The purpose of the utility model can be achieved by the following technical solutions:

[0007] The utility model provides a guide wheel support structure of ring line cutting machine, and the ring line cutting machine includes support and guide wheel which can tension cutting line, the support is fixedly connected with cantilever, the cantilever is provided with mounting hole, and the utility model discloses a fixed bearing seat and movable bearing seat are fixedly connected on the support, the drive shaft is passed in the fixed bearing seat and can be sleeved with the guide wheel, the support shaft is passed in the movable bearing seat, the support shaft is provided with the connecting counterbore along the axial direction, the connecting screw rod is passed out of the connecting counterbore and is fixedly connected with the drive shaft along the axial direction, and the support shaft is pressed on the drive shaft along the axial direction with the guide wheel.

[0008] Working principle: when installing, the fixed bearing seat is fixed on the support, the drive shaft is passed in the fixed bearing seat, the guide wheel is sleeved on the drive shaft, the support shaft is passed in the movable bearing seat, the movable bearing seat is passed in the mounting hole of the cantilever, the end of the support shaft is abutted on the drive shaft with the guide wheel, one end of the connecting screw rod is passed out of the connecting counterbore and is fixed with the drive shaft along the axial direction, so as to realize the guide wheel along the axial direction between the support shaft and the drive shaft. In the ring line cutting machine, at least two guide wheels are usually arranged, and the guide wheels tension the cutting line. When the ring line cutting machine works, the motor drives the driving wheel to rotate, the driving wheel drives the cutting line to move and drives the remaining driven wheels to rotate, and when the workpiece is fed along the X or Y direction or both directions, the cutting of the workpiece can be realized. After cutting for a long time, the wire slot of the guide wheel is worn, so that the guide wheel needs to be replaced. When replacing, the connecting screw rod can be directly taken out, the support shaft of the movable bearing seat is disconnected with the fixed bearing seat, the guide wheel between the support shaft and the drive shaft is taken out and replaced. Through the cooperation of the support shaft and the drive shaft, the axial connection of the connecting screw rod to the support shaft and the drive shaft realizes the axial positioning of the guide wheel. The movable bearing seat is only passed in the mounting hole, so that the movable bearing seat can be supported by the cantilever when rotating, realizing stable rotation of the guide wheel. Through the cooperation of the connecting screw rod, the support shaft and the drive shaft, the guide wheel can be quickly assembled and disassembled, so that the installation and maintenance are convenient, and stable cutting can be ensured.

[0009] In the guide wheel support structure of the ring line cutting machine, the end of the drive shaft close to the support shaft is provided with an abutting step in the form of a ring, and the guide wheel is axially pressed on the abutting step by the support shaft.

[0010] The structure enables the guide wheel to be sleeved on the abutting step before positioning, preliminarily limited, and improves the convenience of installation of the guide wheel.

[0011] In the guide wheel support structure of the ring line cutting machine, the end of the support shaft is provided with a counterbore groove, and the end of the support shaft is sleeved on the drive shaft so that the end of the drive shaft is embedded in the counterbore groove.

[0012] Through the setting of the counterbore groove, the end of the support shaft is sleeved on the driving shaft when the movable bearing seat supports the end of the shaft during installation, the end of the driving shaft is embedded into the counterbore groove, the axial installation of the movable bearing seat is pre-positioned, and the convenience of installation is improved.

[0013] In the guide wheel supporting structure of the ring line cutting machine, the end of the driving shaft is embedded into the counterbore groove when the supporting shaft presses the guide wheel against the step, and the end of the driving shaft and the groove bottom of the counterbore groove have an installation gap.

[0014] The setting of the installation gap makes the end of the driving shaft embedded into the counterbore groove without affecting the pressing degree of the guide wheel, and the stability of the guide wheel installation is improved.

[0015] In the guide wheel supporting structure of the ring line cutting machine, the inner side wall of the movable bearing seat is provided with an installation step, the outer side wall of the supporting shaft is provided with a limiting step, the supporting shaft is sleeved with a bearing, the supporting shaft is clamped with a shaft elastic retainer ring for pressing the inner ring of the bearing against the limiting step, and the movable bearing seat is further connected with a bearing end cover for pressing the outer ring of the bearing against the installation step.

[0016] The structure is provided with the bearing end cover, the shaft elastic retainer ring and the bearing, the installation and positioning of the supporting shaft and the movable bearing seat are realized, and the setting of the bearing makes the support of the supporting shaft more stable.

[0017] In the guide wheel supporting structure of the ring line cutting machine, the fixed bearing seat comprises a limiting ring sleeved on the driving shaft and an installation sleeve abutting against the support, the outer side wall of the driving shaft is provided with a positioning stop, the driving shaft is sleeved with a bearing and a shaft sleeve, one end of the driving shaft is threadedly connected with a locking nut for pressing the inner ring of the bearing against the positioning stop, and the installation sleeve presses the outer ring of the bearing against the limiting ring.

[0018] The fixed bearing seat is designed in a split type, the installation of the bearing is realized, the shaft sleeve is pressed against the inner ring of the bearing by the locking nut, the inner ring of the bearing is positioned by being pressed against the positioning stop, the outer ring of the bearing is pressed against the limiting ring by the limiting ring and the installation sleeve, and the installation and positioning of the fixed bearing seat and the driving shaft are realized.

[0019] Compared with the prior art, the utility model has the advantages that: through the cooperation of the supporting shaft and the driving shaft, the connecting screw rod connects the supporting shaft and the driving shaft in the axial direction, the axial positioning of the guide wheel is realized, the movable bearing seat is only arranged in the installation hole, the movable bearing seat can be supported by the cantilever during rotation, stable rotation of the guide wheel is realized, the cooperation of the connecting screw rod, the supporting shaft and the driving shaft realizes quick mounting and dismounting of the guide wheel, the installation and maintenance are convenient, and stable cutting is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the guide wheel component schematic diagram of the ring line cutting machine.

[0021] Figure 2 is the guide wheel support structure schematic diagram.

[0022] Figure 3 is the front view of the guide wheel component in the ring line cutting machine.

[0023] Figure 4 is Figure 3 the partial sectional view along A-A.

[0024] In the figure, 1, support; 11, cantilever; 11a, mounting hole; 2, guide wheel; 3, fixed bearing seat; 31, limiting ring; 32, mounting sleeve; 4, movable bearing seat; 41, mounting step; 42, bearing end cover; 5, drive shaft; 51, abutting step; 52, positioning stop; 6, support shaft; 61, connecting counterbore; 62, counterbore groove; 63, limiting step; 64, elastic retainer ring for shaft; 7, connecting screw; 8, mounting gap; 9, cutting line; 10, bearing; 101, shaft sleeve; 102, locking nut. DETAILED DESCRIPTION

[0025] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.

[0026] As Figure 1 shown, the guide wheel support structure of the ring line cutting machine, the ring line cutting machine comprises a support 1 and a guide wheel 2 capable of tensioning the cutting line 9, the support 1 is fixedly connected with a cantilever 11, and the cantilever 11 is provided with a mounting hole 11a.

[0027] Specifically, as Figures 1-4 shown, the guide wheel support structure comprises a fixed bearing seat 3 fixedly connected to the support 1 and a movable bearing seat 4 penetrating the mounting hole 11a, the fixed bearing seat 3 is provided with a drive shaft 5 capable of sleeving the guide wheel 2, the movable bearing seat 4 is provided with a support shaft 6, the support shaft 6 is provided with a connecting counterbore 61 along the axial direction, and the guide wheel support structure further comprises a connecting screw 7, one end of the connecting screw 7 penetrates the connecting counterbore 61 and is fixedly connected with the drive shaft 5 along the axial direction, and the support shaft 6 compresses the guide wheel 2 along the axial direction on the drive shaft 5.

[0028] Working principle: when installing, first fix the fixed bearing seat 3 on the support 1, a driving shaft 5 is arranged in the fixed bearing seat 3, the guide wheel 2 is sleeved on the driving shaft 5, a supporting shaft 6 is arranged in the movable bearing seat 4, the movable bearing seat 4 is arranged in the mounting hole 11a of the cantilever 11, the end of the supporting shaft 6 abuts against the driving shaft 5 through the supporting shaft 6, one end of the connecting screw rod 7 is arranged in the connecting counterbore 61 and is fixed along the axial direction of the driving shaft 5, so that the guide wheel 2 is fixed along the axial direction between the supporting shaft 6 and the driving shaft 5. In the ring line cutting machine, at least two guide wheels 2 are usually arranged, and the guide wheels 2 tension the cutting line 9. When the ring line cutting machine works, the motor drives the driving wheel to rotate, the driving wheel drives the cutting line 9 to move and drives the remaining driven wheels to rotate, and when the workpiece is fed along the X or Y direction or both directions, the cutting of the workpiece can be realized. After cutting for a long time, the wire groove of the guide wheel 2 will be worn, so that the guide wheel 2 needs to be replaced. The connecting screw rod 7 can be taken out to release the connection between the movable bearing seat 4, the supporting shaft 6 and the fixed bearing seat 3, and the guide wheel 2 between the supporting shaft 6 and the driving shaft 5 can be taken out and replaced. Through the cooperation of the supporting shaft 6 and the driving shaft 5, the axial connection of the connecting screw rod 7 to the supporting shaft 6 and the driving shaft 5 realizes the axial positioning of the guide wheel 2. The movable bearing seat 4 is only arranged in the mounting hole 11a, so that the movable bearing seat 4 can be supported by the cantilever 11 during rotation to realize stable rotation of the guide wheel 2. Through the cooperation of the connecting screw rod 7, the supporting shaft 6 and the driving shaft 5, the guide wheel 2 can be quickly assembled and disassembled, so that the installation and maintenance process is convenient, and stable cutting can be ensured.

[0029] As shown in Figure 3 and Figure 4 , the end of the driving shaft 5 close to the supporting shaft 6 is provided with an annular abutting step 51, and the guide wheel 2 is axially pressed on the abutting step 51 through the supporting shaft 6.

[0030] As shown in Figure 4 , the end of the supporting shaft 6 is provided with a counterbore groove 62, the end of the driving shaft 5 is embedded in the counterbore groove 62 when the supporting shaft 6 is sleeved on the driving shaft 5, and the end of the driving shaft 5 has an installation gap 8 with the groove bottom of the counterbore groove 62.

[0031] As shown in Figure 4As shown, the inner side wall of the movable bearing seat 4 is provided with a mounting step 41, the outer side wall of the support shaft 6 is provided with a limiting step 63, the support shaft 6 is sleeved with the bearing 10, the support shaft 6 is clamped with the elastic shaft baffle 64 which presses the inner ring of the bearing 10 on the limiting step 63, and the movable bearing seat 4 is further connected with the bearing end cover 42 which presses the outer ring of the bearing 10 on the mounting step 41; the fixed bearing seat 3 comprises a limiting ring 31 sleeved on the driving shaft 5 and a mounting sleeve 32 abutting against the bracket 1, the outer side wall of the driving shaft 5 is provided with a positioning baffle 52, the driving shaft 5 is sleeved with the bearing 10 and the shaft sleeve 101, one end of the driving shaft 5 is threadedly connected with the locking nut 102 which presses the inner ring of the bearing 10 on the positioning baffle 52, and the mounting sleeve 32 presses the outer ring of the bearing 10 on the limiting ring 31.

[0032] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A guide wheel support structure of a ring wire cutting machine, the ring wire cutting machine comprising a support (1) and a guide wheel (2) capable of tensioning a cutting wire, a cantilever (11) being fixed to the support (1), and a mounting hole (11a) being formed in the cantilever (11), characterized in that, The guide wheel support structure comprises a fixed bearing seat (3) fixed on the support (1) and a movable bearing seat (4) penetratingly arranged in the mounting hole (11a), a driving shaft (5) penetratingly arranged in the fixed bearing seat (3) for sleeving the guide wheel (2), and a support shaft (6) penetratingly arranged in the movable bearing seat (4), wherein the support shaft (6) is provided with a connecting counterbore (61) in the axial direction, and the guide wheel support structure further comprises a connecting screw rod (7), one end of the connecting screw rod (7) penetratingly arranged in the connecting counterbore (61) is axially fixed with the driving shaft (5), and the support shaft (6) axially presses the guide wheel (2) on the driving shaft (5).

2. The guide wheel support structure of a ring line cutting machine according to claim 1, characterized in that, The driving shaft (5) is provided with an annular abutting step (51) at one end close to the support shaft (6), and the guide wheel (2) is axially pressed on the abutting step (51) by the support shaft (6).

3. The guide wheel support structure of a ring line cutting machine according to claim 2, characterized in that, The end of the support shaft (6) is provided with a counterbore groove (62), and the end of the support shaft (6) is sleeved on the driving shaft (5) so that the end of the driving shaft (5) is embedded in the counterbore groove (62).

4. The guide wheel support structure of a ring line cutting machine according to claim 3, characterized in that, When the support shaft (6) presses the guide wheel (2) on the abutting step (51), the end of the driving shaft (5) is embedded in the counterbore groove (62), and the end of the driving shaft (5) has an installation gap (8) with the groove bottom of the counterbore groove (62).

5. The guide wheel support structure of a ring line cutting machine according to any one of claims 1 to 4, characterized in that, The inner side wall of the movable bearing seat (4) is provided with a mounting step (41), the outer side wall of the support shaft (6) is provided with a limiting step (63), the support shaft (6) is sleeved with a bearing (10), the support shaft (6) is clamped with an elastic shaft collar (64) for pressing the inner ring of the bearing (10) on the limiting step (63), and the movable bearing seat (4) is further connected with a bearing end cover (42) for pressing the outer ring of the bearing (10) on the mounting step (41).

6. The guide wheel support structure of a ring line cutting machine according to claim 5, characterized in that, The fixed bearing seat (3) comprises a limiting ring (31) sleeved on the driving shaft (5) and a mounting sleeve (32) abutting on the support (1), the outer side wall of the driving shaft (5) is provided with a positioning stop edge (52), the driving shaft (5) is sleeved with a bearing (10) and a shaft sleeve (101), one end of the driving shaft (5) is threadedly connected with a locking nut (102) for pressing the inner ring of the bearing (10) on the positioning stop edge (52), and the mounting sleeve (32) presses the outer ring of the bearing (10) on the limiting ring (31).

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