Online dressing tool for grinding wheel of broach grinding machine

Abstract

The utility model discloses a broach grinding machine grinding wheel on-line dressing tool which comprises a tool installation base installed on one side of a workbench of a broach grinding machine, a sliding rail is arranged on the tool installation base, a sliding base is arranged on the sliding rail, a first supporting base is arranged on the sliding base, a dressing motor is arranged on the side face of the first supporting base, and a grinding wheel is arranged on the dressing motor. The output end of the trimming motor is connected with a trimming tool; one end of the tool installation base is further connected with a driving assembly through a second supporting base, and the output end of the driving assembly is connected with the sliding base through a self-centering connecting piece and drives the sliding base to move along the sliding rail. The dressing tool is simple in structure, easy to assemble and use, and capable of dressing the grinding tool of the broach grinding machine on line, so that the grinding tool keeps good shape and smoothness.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to an online dressing tool for a grinding wheel of a broach grinder. Background Art

[0002] A broach is a shaped tool used for broaching. There are multiple rows of teeth on its surface. The size and shape of each row of teeth will increase and change along the length of the broach. In order to better obtain the broach, a broach grinder is usually used to machine the broach. Due to the complex structure and varied shapes of the teeth of the broach, the amount of grinding is relatively large and the precision is relatively high. In this process, the tool used for grinding on the broach grinder also needs to be trimmed after a period of use to keep it in a good shape and finish.

[0003] The existing practice is usually to remove the grinding tool from the broach grinder and place it in a special dressing tool for dressing. Although this method can achieve the dressing purpose, it is not very convenient. It takes time to install and remove the tool back and forth, and the machine must be stopped, which affects the overall processing efficiency. Summary of the invention

[0004] The utility model aims to provide an online dressing tool for the grinding wheel of a broach grinder in view of the problems existing in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An online dressing tool for a grinding wheel of a broach grinder comprises a tool mounting seat installed on one side of a workbench of the broach grinder, a slide rail being provided on the tool mounting seat, a slide seat being provided on the slide rail, a first support seat being provided on the slide seat, a dressing motor being provided on the side of the first support seat, and a dressing tool being connected to the output end of the dressing motor; one end of the tool mounting seat is also connected to a driving assembly via a second support seat, the output end of the driving assembly is connected to the slide seat via a self-centering connector, and drives the slide seat to move along the slide rail.

[0007] This online dressing tooling for the grinding wheel of a broach grinder has a simple structure and is easy to assemble and use. It can be installed on one side of the workbench of the broach grinder to dress the grinding tool of the broach grinder online, so that the shape and finish of the grinding tool can be better maintained. It can also shape the grinding tool to achieve the required shape. During the dressing process, there is no need to remove the grinding tool from the broach grinder. The all-round moving ability and flexibility of the grinding tool on the broach grinder can be directly used to achieve the dressing of the tool being dressed. This online dressing method can greatly improve the overall processing efficiency. There is no need to stop the machine during the dressing process. The flexibility and CNC performance of the broach grinder are used in conjunction with this tooling to complete the dressing operation of the grinding tool.

[0008] The provision of the tooling mounting seat facilitates the installation of the entire tooling as a whole on the side of the workbench. In practice, the tooling mounting seat may not be provided, and the slide rail may be directly installed near the edge of the workbench.

[0009] The setting of the slide rail facilitates the movement of the slide seat, thereby driving the first support seat, that is, driving the dressing motor to move. The advantage of such a setting is that the position of the dressing tool can be moved. In the non-dressing state, it is moved to the corner of the workbench so that it is not within the main processing range of the broach grinder to avoid affecting the normal workpiece processing; when dressing is required, it can be moved to the active range of the broach grinder to perform online dressing of the grinding tools of the broach grinder.

[0010] Furthermore, the moving direction of the slide on the slide rail is parallel to the main rotating axis of the broach grinder, and the arrangement direction of the output shaft of the dressing motor is parallel to the moving direction of the slide.

[0011] Furthermore, the first support seat includes a first support plate vertically welded to the slide seat, the side of the first support plate is detachably mounted with the trimming motor via a motor seat, and a plurality of inclined ribs are provided between the two sides of the first support plate and the slide seat.

[0012] Furthermore, the dressing tool is a dressing roller, a dressing grinding wheel, a dressing hob, etc.

[0013] Furthermore, the drive assembly includes a cylinder and a piston rod connected to the cylinder, the end surface of the cylinder is provided with a mounting flange connected to the second support seat, and the piston rod passes through the second support seat and is connected to the self-centering connector.

[0014] Furthermore, the second support seat is arranged at an edge of one end of the tooling mounting seat away from the slide rail, and an inclined rib plate is provided between the second support seat and the tooling mounting seat.

[0015] Furthermore, an adjustable cushion block is provided between the inner wall of the slide seat and the outer wall of the slide rail, and the cushion block is connected to the slide seat via an adjusting bolt.

[0016] Furthermore, the slide rail is a T-shaped slide rail, and a clearance groove is provided in the middle of the upper end surface of the T-shaped slide rail along the length direction, and a plurality of groups of bolts connected to the tooling mounting seat are provided in the clearance groove. The setting of the pad can adjust the gap between the slide seat and the slide rail, that is, the tightness of the fit between the slide seat and the slide rail.

[0017] Furthermore, a lower limit protrusion is provided at one end of the displacement groove away from the driving assembly, and an upper limit protrusion matching with the lower limit protrusion is provided at the inner bottom of the slide seat, and the cooperation of the two can form a limit for the slide seat.

[0018] Furthermore, the slide is an integrated slide or a split assembled slide, and a plurality of lubrication channels are provided in the slide, and the lubrication channels extend to a plurality of sliding mating surfaces of the slide and the slide rail respectively, so that lubricant can be injected from the outside to lubricate the moving parts.

[0019] Compared with the prior art, the utility model has the following beneficial effects: 1. The online dressing tooling of the grinding wheel of the broach grinder has a simple structure, is easy to assemble and use, can be installed on one side of the workbench of the broach grinder, and can perform online dressing on the grinding tool of the broach grinder, so that the shape and smoothness of the grinding tool are well maintained, and can also perform shaping on the grinding tool to achieve the required shape; 2. During the dressing process, there is no need to disassemble the grinding tool from the broach grinder, and the omnidirectional moving ability and flexibility of the grinding tool on the broach grinder can be directly used to realize the dressing of the dressing tool itself; 3. The setting of the slide rail facilitates the movement of the slide seat, thereby driving the first support seat, that is, driving the dressing motor to move. The advantage of such a setting is that the position of the dressing tool can be moved, and it can be moved to the corner of the workbench in the non-dressing state, so that it is not within the main processing range of the broach grinder, so as to avoid affecting the normal workpiece processing; when dressing is required, it can be moved to the activity range of the broach grinder, so as to perform online dressing on the grinding tool of the broach grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main view (including partial cross-section) of an online dressing tool for a broach grinder grinding wheel of the utility model;

[0021] Figure 2 It is a top view schematic diagram of an online dressing tool for a broach grinder grinding wheel according to the utility model;

[0022] Figure 3 It is a side view schematic diagram (including partial cross-section) of an online dressing tool for a broach grinder grinding wheel of the utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of a slide seat of an online dressing tool for a broach grinder grinding wheel according to the utility model;

[0024] In the figure: 1. tooling mounting seat; 2. slide rail; 3. slide seat; 301. upper seat plate; 302. lower seat plate; 303. side seat plate; 4. first support seat; 5. dressing motor; 6. motor seat; 7. dressing tool; 8. second support seat; 9. cylinder; 10. piston rod; 11. self-centering connector; 12. inclined rib plate; 13. spacer block; 14. adjusting bolt; 15. clearance groove; 16. lower limit protrusion; 17. upper limit protrusion; 18. first lubrication channel; 19. second lubrication channel; 20. third lubrication channel; 21. fourth lubrication channel. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] like Figure 1 to Figure 3 As shown, an online dressing tool for grinding wheels of broach grinders comprises a tool mounting seat 1 installed on one side of the workbench of the broach grinder, a slide rail 2 is provided on the tool mounting seat 1, a slide seat 3 is provided on the slide rail 2, a first support seat 4 is provided on the slide seat 3, a dressing motor 5 is provided on the side of the first support seat 4, and a dressing tool 7 is connected to the output end of the dressing motor 5; one end of the tool mounting seat 1 is also connected to a driving assembly through a second support seat 8, and the output end of the driving assembly is connected to the slide seat 3 through a self-centering connector 11, and drives the slide seat 3 to move along the slide rail 2.

[0028] The online dressing tool for the grinding wheel of the broach grinder has a simple structure, is easy to assemble and use, and can be installed on one side of the workbench of the broach grinder to dress the grinding tool of the broach grinder online, so that the shape and finish of the grinding tool are well maintained, and the grinding tool can also be reshaped to achieve the required shape. During the dressing process, there is no need to disassemble the grinding tool from the broach grinder, and the omnidirectional moving ability and flexibility of the grinding tool on the broach grinder can be directly used to achieve the dressing of the tool being dressed.

[0029] The provision of the tooling mounting seat 1 facilitates the installation of the entire tooling as a whole on the side of the workbench. In practice, the tooling mounting seat may not be provided, and the slide rail may be directly installed near the edge of the workbench.

[0030] The setting of the slide rail 2 facilitates the movement of the slide seat 3, thereby driving the first support seat 4, that is, driving the dressing motor 5 to move. The advantage of such a setting is that the position of the dressing tool 7 can be moved. In the non-dressing state, it can be moved to the corner of the workbench so that it is not within the main processing range of the broach grinder to avoid affecting the normal workpiece processing; when dressing is required, it can be moved to the active range of the broach grinder to perform online dressing of the grinding tools of the broach grinder.

[0031] The driving assembly can drive the slide 3 to move. When trimming is required, the slide 3 will be pushed to one end of the slide rail. Figure 1 The position of the center right end is convenient for trimming the grinding tool; if it is not trimmed, it will be pulled to the left. The setting of the self-centering connector 11 can ensure the accuracy of the horizontal movement of the drive assembly and can maintain the centering state during the movement. The centering connector can be a mature product available on the market.

[0032] Furthermore, the moving direction of the slide 3 on the slide rail 2 is parallel to the main rotating axis of the broach grinder, and the arrangement direction of the output shaft of the dressing motor 5 is parallel to the moving direction of the slide 3 .

[0033] Through this arrangement of positions, the area occupied by the dressing tool above the workbench can be reduced as much as possible, while also ensuring that the dressing tool can act on the object being dressed.

[0034] The broach grinder described in this embodiment is a five-axis machine tool. The moving direction of the slide on the slide rail is parallel to the A-axis of the broach grinder. With the movable adjustment of the tooling and the flexibility of the five-axis machine tool's own movement, the shaping of the model tool is convenient.

[0035] For a five-axis broach grinder, the X-axis, Y-axis and Z-axis are its three basic directional axes, which represent the horizontal, longitudinal and vertical movements respectively. The A-axis is the fourth axis of the five-axis machine tool, which represents the rotation of the working end of the machine tool around the X-axis. The B-axis is the fifth axis of the five-axis machine tool, which represents the rotation of the working end of the machine tool around the Y-axis.

[0036] Furthermore, the first support seat 4 includes a first support plate vertically welded to the slide seat, the side of the first support plate is detachably mounted with the trimming motor 5 via a motor seat 6, and a plurality of inclined ribs 12 are provided between the two sides of the first support plate and the slide seat 3.

[0037] A plurality of inclined ribs 12 are arranged on both sides of the first support plate, which can make the first support plate more stable. The side surfaces thereof are connected to the motor seat 6 by a plurality of bolts, and the trimming motor 5 can be installed in the motor seat 6, so that the space on both sides of the first support plate can be fully utilized.

[0038] Further, the dressing tool 7 is a dressing roller, a dressing grinding wheel, a dressing hob, etc. These tools can shape the grinding tool on the broach grinder to keep the proper finish and shape.

[0039] Furthermore, the driving assembly includes a cylinder 9 and a piston rod 10 connected to the cylinder 9, the end surface of the cylinder 9 is provided with a mounting flange connected to the second support seat 8, and the piston rod 10 passes through the second support seat and is connected to the self-centering connector 11. The cylinder 9 is used to drive the piston rod 10 to reciprocate, so as to realize the reciprocating movement of the slide seat 3.

[0040] Furthermore, the second support seat 8 is arranged at an edge of the tooling mounting seat away from the slide rail, and an inclined rib plate is also provided between the second support seat 8 and the tooling mounting seat 1 .

[0041] Furthermore, an adjustable cushion block 13 is provided between the inner wall of the slide seat 3 and the outer wall of the slide rail 2 , and the cushion block 13 is connected to the slide seat 3 via an adjusting bolt 14 .

[0042] The setting of the cushion block 13 can adjust the gap between the slide seat 3 and the slide rail 2, that is, the tightness of the fit between the slide seat 3 and the slide rail 2, so that a stable and slidable connection state is formed between the slide seat 3 and the slide rail 2, thereby preventing the slide seat 3 from shaking during movement.

[0043] Furthermore, the slide rail 2 is a T-shaped slide rail, and a clearance groove 15 is provided in the middle of the upper end surface of the T-shaped slide rail along the length direction, and a plurality of groups of bolts connected to the tooling mounting seat 1 are provided in the clearance groove 15.

[0044] The setting of the clearance groove 15 can accommodate these bolts and prevent the heads of the bolts from protruding from the upper surface of the slide rail, and can also accommodate the connecting parts on the slide seat 3; such a setting can also make the structure of the slide rail 2 more compact and avoid connecting and fastening the slide rail with external bolts. This slide rail does not require a connecting wing plate at the bottom.

[0045] Furthermore, a lower limit protrusion 16 is provided at one end of the clearance groove 15 away from the driving assembly, and an upper limit protrusion 17 is provided at the inner bottom of the slide seat 3 to match the lower limit protrusion 16. The lower limit protrusion 16 is connected to the clearance groove 15 by bolts, and the upper limit protrusion 17 is connected to the inner bottom of the slide seat 3 by bolts.

[0046] The arrangement of the lower limit protrusion 16 and the upper limit protrusion 17 can form a hard limit at the leftmost end to prevent the slide 3 from being over-pushed out. The lower limit protrusion 16 and the upper limit protrusion 17 are just within the space range of the clearance groove, and the arrangement is also relatively convenient.

[0047] Furthermore, the slide seat 3 is an integrated slide seat or a split assembled slide seat, and a plurality of groups of lubrication channels are arranged in the slide seat 3 , and the lubrication channels extend to a plurality of sliding matching surfaces between the slide seat 3 and the slide rail 2 , respectively.

[0048] The present embodiment adopts a split assembly slide, and this structure of the slide is convenient for processing the holes inside it; Figure 4 As shown, the split assembled slide includes an upper seat plate 301, a pair of lower seat plates 302, and a pair of side seat plates 303 connected between the upper seat plate 301 and the lower seat plate 302. The structure enclosed by bolt connection can just be buckled on the slide rail 2. The pair of side seat plates 303 are located on both sides of the slide rail 2, the upper seat plate 301 is located on the upper surface of the slide rail 2, and the lower seat plate 302 is located on both sides of the bottom of the slide rail 2.

[0049] The lubrication channel includes a first lubrication channel 18 and a second lubrication channel 19 arranged in the upper seat plate 301, a third lubrication channel 20 in the lower seat plate 302, and a fourth lubrication channel 21 in the side seat plate 303; the first lubrication channel 18 is connected to the upper sliding mating surface of the slide rail 2 through a plurality of small holes, the third lubrication channel 20 is connected to the lower sliding mating surface of the slide rail 2 through a plurality of small holes respectively, the second lubrication channel 19 is connected to the fourth lubrication channel 21 through a small hole, and the fourth lubrication channel 21 is connected to the side sliding mating surface of the slide rail 2 through a small hole.

[0050] Through the provision of these lubrication channels, it is convenient to add lubricant to each sliding mating surface from the outside to play a lubricating role, which can not only ensure the stable matching relationship between the slide seat and the slide rail, but also enhance the smoothness of their movement.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online dressing tool for a broach grinder grinding wheel, characterized in that: It includes a tool mounting seat installed on one side of the workbench of the broach grinder, the tool mounting seat is provided with a slide rail, the slide rail is provided with a slide seat, the slide seat is provided with a first support seat, a side of the first support seat is provided with a dressing motor, and the output end of the dressing motor is connected to a dressing tool; one end of the tool mounting seat is also connected to a driving component through a second support seat, the output end of the driving component is connected to the slide seat through a self-centering connector, and drives the slide seat to move along the slide rail.

2. The online dressing tool for broach grinder grinding wheel according to claim 1, characterized in that: The moving direction of the slide on the slide rail is parallel to the main rotating axis of the broach grinder, and the arrangement direction of the output shaft of the dressing motor is parallel to the moving direction of the slide.

3. The online dressing tool for broach grinder grinding wheel according to claim 1, characterized in that: The first support seat includes a first support plate vertically welded to the slide seat, the side of the first support plate is detachably mounted with the trimming motor via a motor seat, and a plurality of inclined ribs are provided between the two sides of the first support plate and the slide seat.

4. The online dressing tool for broach grinder grinding wheel according to claim 1, characterized in that: The dressing tools are dressing rollers, dressing grinding wheels and dressing hobs.

5. The online dressing tool for broach grinder grinding wheel according to claim 1, characterized in that: The driving assembly includes a cylinder and a piston rod connected to the cylinder. The end surface of the cylinder is provided with a mounting flange connected to the second support seat. The piston rod passes through the second support seat and is connected to the self-centering connector.

6. The online dressing tool for broach grinder grinding wheel according to claim 1, characterized in that: The second support seat is arranged at an edge of one end of the tooling mounting seat away from the slide rail, and an inclined rib plate is arranged between the second support seat and the tooling mounting seat.

7. The on-line dressing tool for broach grinder grinding wheel according to claim 1, characterized in that: An adjustable cushion block is also provided between the inner side wall of the slide seat and the outer wall of the slide rail, and the cushion block is connected to the slide seat via an adjusting bolt.

8. The on-line dressing tool for broach grinder grinding wheel according to claim 1, characterized in that: The slide rail is a T-shaped slide rail, and a clearance groove is provided in the middle of the upper end surface of the T-shaped slide rail along the length direction. A plurality of groups of bolts connected with the tooling mounting seat are provided in the clearance groove.

9. The on-line dressing tool for broach grinder grinding wheel according to claim 8, characterized in that: A lower limit protrusion is also provided at one end of the displacement groove away from the driving assembly, and an upper limit protrusion matched with the lower limit protrusion is provided at the inner bottom of the slide seat.

10. The on-line dressing tool for broach grinder grinding wheel according to claim 1, characterized in that: The slide seat is an integrated slide seat or a split assembled slide seat, and a plurality of groups of lubrication channels are arranged in the slide seat, and the lubrication channels extend to a plurality of sliding matching surfaces of the slide seat and the slide rail respectively.

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