Shaft part feeding and discharging device of centerless grinding machine

Abstract

According to the shaft part feeding and discharging device of the centerless grinding machine, the centerless grinding machine comprises a grinding wheel, an adjusting wheel and a vertical supporting plate, the supporting plate is located between the grinding wheel and the adjusting wheel, one end of the supporting plate extends out of the grinding wheel and serves as a feeding end, a base is arranged on the outer side of the grinding wheel, and a feeding track and a discharging track are connected to the base in a sliding mode; a feeding opening is formed in the side, close to the supporting plate, of the discharging end, a discharging opening is formed in one side of the discharging rail, and the feeding opening and the discharging opening can move to the feeding end correspondingly. A material pushing rod is arranged over the supporting plate, the end, away from the feeding end, of the material pushing rod is connected with a transverse moving device, the other end of the material pushing rod is provided with a clamping jaw, and the path line of the clamping jaw can move to the feeding opening or the discharging opening through the feeding end. The length of the two clamping jaws is matched with the length of the shaft part, the two ends of the shaft part can be pushed and pulled, the shaft part cannot deviate on the supporting plate in the forward moving direction, and feeding and discharging of the shaft part can be achieved only through one transverse moving device.

Description

Technical Field

[0001] The utility model relates to the technical field of centerless grinders, in particular to an inlet and outlet device for shaft parts of a centerless grinder. Background Art

[0002] The centerless grinder includes a housing and a grinding wheel and an adjusting wheel disposed in the housing. Generally, the parts are placed between the grinding wheel and the adjusting wheel for grinding through a loading mechanism. For example, the automatic loading and unloading mechanism of a centerless grinder with the patent number CN205237729U includes a feeding V-shaped slideway for receiving the workpiece and an ejection cylinder and a feeding cylinder disposed on the front and rear sides of the grinding wheel and the adjusting wheel. When loading, the workpiece needs to be rolled from the loading device to the feeding V-shaped slideway, and then the feeding V-shaped slideway is moved to one end of the support plate through an external cylinder, and finally the workpiece is pushed into the support plate between the grinding wheel and the adjusting wheel for grinding through the feeding cylinder. However, the loading and unloading mechanism has many workpiece loading steps, and it is easy to wear or bump from rolling from the loading device to the feeding V-shaped slideway; and this loading method requires multiple oil cylinders and cylinders to realize the loading and unloading of the workpiece, and the required equipment occupies a large space and is more troublesome to install. Utility Model Content

[0003] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a shaft parts entry and exit device for a centerless grinder.

[0004] The technical solution of this utility model is as follows:

[0005] A shaft parts feeding and discharging device of a centerless grinder, the centerless grinder comprises a grinding wheel, an adjusting wheel and a vertical supporting plate, the supporting plate is located between the grinding wheel and the adjusting wheel, and one end of the supporting plate extends out of the grinding wheel, which is a feeding end, a base is provided on the outer side of the grinding wheel, a feeding track and a discharging track are slidably connected on the base, one end of the feeding track is a discharging end, a side of the discharging end close to the supporting plate is provided with a feeding opening, a side of the discharging track close to the supporting plate is provided with a discharging opening, and the feeding opening and the discharging opening can be moved to the feeding end respectively;

[0006] A push rod parallel to the axis of the grinding wheel is provided directly above the support plate. One end of the push rod away from the feeding end is connected to a transverse movement device, and a claw adapted to shaft parts is provided below the other end, and the claw can extend out of the feeding end.

[0007] The transverse movement device can drive the clamping claw to move to the unloading opening and control the movement of the loading track. The state in which the unloading opening is aligned with the loading end is switched to that in which the loading opening is aligned with the loading end. The shaft parts at the loading opening are pushed through the loading end to between the grinding wheel and the adjusting wheel for grinding. The movement of the unloading track is controlled to align the unloading opening with the loading end. The clamping claw pushes the ground shaft parts to the unloading opening for unloading. The shaft parts can enter and exit the centerless grinder in a straight line for loading and unloading, reducing the phenomenon of excessive wear and collision of the shaft parts.

[0008] The lengths of shaft parts are different. In order to enable the claws of the push rod to push and pull shaft parts of different lengths between the grinding wheel and the adjusting wheel, the claws are provided to include a fixed claw and an adjustable claw with an adjustable distance from the fixed claw.

[0009] Regarding the connection structure between the adjustable clamping claw and the push rod, the upper part of the adjustable clamping claw is movably connected to the push rod and can move along the length direction of the push rod.

[0010] The specific connection structure between the above-mentioned adjustable clamping claw and the push rod is that the upper end of the adjustable clamping claw is slidably connected with the lower surface of the push rod and is connected to the push rod through an adjusting member, and the adjusting rod is a bolt.

[0011] The bolt is used to adjust the position of the adjustable claw on the push rod. In order to facilitate tightening or loosening the bolt, the adjustable claw can move synchronously with it. A rotating groove is provided on the side of the adjustable claw close to the adjusting member, and one end of the adjusting member passes through the push rod and is rotatably set in the rotating groove.

[0012] To ensure that the claws can accurately push the shaft parts between the support plate and the grinding wheel and the adjusting wheel when pushing and pulling the shaft parts, the fixed claws and the adjustable claws are arranged in the same vertical plane as the support plate.

[0013] The upper end surface of the loading track is inclined, and the bottom end of the upper end surface is the discharging end, which is used for discharging. A partition is provided on the discharging end to prevent shaft parts from leaving the loading track. The partition is located between the loading opening and the unloading opening, and the side of the unloading track close to the unloading opening is connected to the partition, so that the unloading track can move in the same direction on the base with the loading track, so as to realize that the loading opening and the unloading opening can be moved to the loading end respectively.

[0014] When the claw extends out of the centerless grinder to the unloading opening, in order to move the shaft parts under the claw, the length of the partition is set to be smaller than the distance between the fixed claw and the adjustable claw, and a notch is provided at the end away from the support plate for the fixed claw of the claw to pass through.

[0015] Regarding the specific structure of the transverse moving device, the transverse moving device includes an electric push rod, which has an extension rod, which is connected to the push rod through a push-pull long axis, and the extension rod is coaxial with the push rod. The electric push rod can drive the push rod to move along the length direction of the support plate, and then drive the claw to move toward the outside of the shell.

[0016] The above-mentioned extending rod and the end of the push-pull long shaft away from the clamping claw are connected through a baffle. A first stroke switch is provided on the side of the electric push rod shell away from the loading device. The first stroke switch cooperates with the baffle. The baffle can be connected to the first stroke switch when the extending rod has a minimum stroke. At this time, the clamping claw drives the ground shaft parts to the unloading opening outside the shell. The first stroke switch sends the received signal to the external industrial computer, and the industrial computer controls the transverse movement of the electric push rod, so that the loading track and the unloading track move synchronously, switching from the unloading opening to the loading opening.

[0017] The beneficial effect of the utility model is that the support plate is arranged on the grinding wheel and the adjusting wheel, and one end passes through the grinding wheel and the adjusting wheel to form a feeding end for feeding shaft parts. The shaft parts can be driven by the clamping claws to move from the feeding opening of the feeding track through the feeding end to the preset grinding position between the grinding wheel and the adjusting wheel. The feeding opening can be close to the feeding end and aligned, so that the clamping claws of the push plate can directly pull the shaft parts from the feeding opening to the support plate.

[0018] After the shaft parts are ground, the claws push the shaft parts out of the support plate through the loading end and push them to the unloading opening of the unloading track. Only one transverse movement device is needed to realize the loading and unloading of the shaft parts, reducing unnecessary wear or bumps on the workpieces during the loading process. In addition, there are fewer loading steps for the shaft parts, which can improve the grinding efficiency of the shaft parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In the attached picture:

[0020] Figure 1 It is a structural schematic diagram;

[0021] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 3 It is a top view;

[0023] Figure 4 It is a schematic diagram of the structure of the push plate, the clamping claw and the push-pull long shaft;

[0024] Figure 5 for Figure 4 A vertical cross-sectional structural schematic diagram of ;

[0025] Figure 6 for Figure 5The enlarged structural diagram at B in the middle;

[0026] Figure 7 It is a schematic diagram of the traverse device and the claw structure;

[0027] The components represented by the reference numerals in the figure are:

[0028] 1. Shell; 2. Grinding wheel; 3. Adjusting wheel; 4. Support plate; 41. Loading end; 5. Loading track; 51. Loading opening; 52. Discharging end; 6. Transverse movement device; 61. Push-pull long axis; 62. Extension rod; 63. Protective cover; 64. First stroke switch; 65. Second stroke switch; 66. Detection plate; 67. Detection end; 7. Push rod; 8. Fixed claw; 9. Adjustable claw; 91. Rotating groove; 92. Slide bar; 10. Connecting plate; 11. Bolt; 12. Unloading track; 121. Unloading opening; 122. Feeding end; 13. Transverse electric push rod; 14. Partition; 141. Notch; 15. Baffle; 16. Base; 17. Baffle bar. DETAILED DESCRIPTION

[0029] like Figure 1 , Figure 2 and Figure 3 The shown embodiment shows a shaft parts entry and exit device of a centerless grinder, the centerless grinder comprising a shell 1 and a grinding wheel 2 and an adjusting wheel 3 arranged in the shell 1, a support plate 4 for supporting shaft parts is arranged at the lower part between the grinding wheel 2 and the adjusting wheel 3, the length direction of the support plate 4 is parallel to the axial direction of the grinding wheel 2, and the support plate 4 has a feeding end 41, the feeding end 41 is located on the outside of the grinding wheel 2, a push rod 7 arranged parallel to the support plate 4 is arranged above the support plate 4, one end of the push rod 7 is connected to a transverse movement device 6, and a claw capable of pushing the shaft parts to move linearly is arranged below the other end, and the maximum stroke of the claw can be moved to the outside of the shell 1 through the feeding end 41.

[0030] Among them, a base 16 is provided on the outer side of the shell 1 away from the transverse movement device 6, and a loading track 5 and a unloading track 12 that can slide synchronously are provided on the base 16. The upper end face of the loading track 5 is inclined, and guard plates are provided on both sides. The bottom end of the upper end face is the discharging end 52, and a loading opening 51 is provided on the side of the discharging end 52 close to the support plate 4. The unloading track 12 has a feeding end 122, and a unloading opening 121 is provided on the side of the feeding end 122 close to the support plate 4. The loading opening 51 and the unloading opening 121 can move to the loading end 41 at different times. The above-mentioned loading rail 5 and unloading rail 12 slide on the base 16 in such a way that the loading rail 5 and the unloading rail 12 are slidably connected with the base 16 via the transverse electric push rod 13, and the claw moves outward to the maximum stroke to the unloading opening 121, and the loading rail 5 and the unloading rail 12 are driven to move by the transverse electric push rod 13, so as to switch from the unloading opening 121 to the loading opening 51, and the claw is retracted, so that the shaft parts of the loading opening 51 can be moved to the preset grinding position between the grinding wheel 2 and the adjusting wheel.

[0031] The above-mentioned push rod 7 is arranged parallel to the support plate 4, and a claw is provided at one end of the push rod 7 close to the loading end 41. The claw can be driven by the transverse movement device 6 to reciprocate in a straight line direction from the loading opening 51 of the loading track 5 to the preset grinding position between the grinding wheel 2 and the adjusting wheel 3, and is used to pull the shaft parts from the loading opening 51 into between the grinding wheel 2 and the adjusting wheel 3, and can also push the ground shaft parts from between the grinding wheel 2 and the adjusting wheel 3 to the unloading opening 121 of the unloading track 12. The loading track 5 and the unloading track 12 can be moved, so that the loading opening 51 and the unloading opening 121 can be moved to the loading end 41 respectively. The utility model can realize rapid loading and unloading of shaft parts through only one transverse movement device 6, which can not only reduce unnecessary wear or bumping of the workpiece during the loading process, but also reduce the loading steps of shaft parts, thereby improving the grinding efficiency of shaft parts.

[0032] like Figure 4As shown, due to the different lengths of the shaft parts to be ground, in order to enable the claws of the push rod 7 to push and pull shaft parts of different lengths between the grinding wheel 2 and the adjusting wheel 3, the claws include a fixed claw 8 and an adjustable claw 9. The adjustable claw 9 is movably connected to the push rod 7, and the distance between the fixed claw 8 and the fixed claw 8 is adjustable, so that shaft parts of different lengths can be pushed and pulled between the fixed claw 8 and the adjustable claw 9. The adjustment method of one of the above-mentioned claws is that the upper end of the adjustable claw 9 is slidably connected with the pushing rod 7, and the pushing rod 7 is provided with a bolt 11 which can push to one side of the adjustable claw 9, and the adjustable claw 9 can move along the moving direction of the pushing rod 7, and the lower surface of the pushing rod 7 is provided with a slideway along the length direction of the pushing rod 7, and the upper end of the adjustable claw 9 is provided with a slide bar 92 adapted to the slideway, and the pushing rod 7 is provided with a bolt 11 which can push to one side of the adjustable claw 9, and the adjustable claw 9 can move along the moving direction of the pushing rod 7 by tightening or loosening the bolt 11.

[0033] To ensure that the claws can accurately push the shaft parts between the support plate 4 and the grinding wheel 2 and the adjusting wheel 3 when pushing and pulling the shaft parts, the fixed claws 8 and the adjustable claws 9 are arranged in the same vertical plane as the support plate 4.

[0034] like Figure 5 As shown, the connection structure between the bolt 11 and the push plate is that a connecting plate 10 is provided on one side of the push plate close to the transverse movement device 6, the connecting plate 10 is arranged vertically downward, the bolt 11 is penetrated on the connecting plate 10 in the horizontal direction, and the bolt 11 is threadedly connected to the connecting plate 10, one end of the bolt 11 passes through the connecting plate 10 to the side of the adjustable claw 9, tightening or loosening the bolt 11 can adjust the distance between the adjustable claw 9 and the other claw to adapt to shaft parts of different lengths.

[0035] like Figure 6 As shown, in order to reduce the lateral shaking of the adjustable jaw 9 or the separation from the bolt 11, a rotation groove 91 is provided on the side of the adjustable jaw 9 close to the bolt 11, and one end of the bolt 11 is rotatably set in the rotation groove 91. When the bolt 11 is tightened or loosened, the adjustable jaw 9 will move with the bolt 11. In order to ensure that the two jaws can push the shaft parts to between the grinding wheel 2 and the adjusting wheel 3, and can also push the ground shaft parts out of the support plate 4, the axial direction of the bolt 11 is set to be consistent with the axial direction of the push-pull long shaft 61, so that the bolt 11 can be tightened or loosened, and the adjustable jaw 9 can be adjusted along the moving direction of the push plate. The bolt 11 is located on the outside of the two jaws, and the bolt 11 is set on the outside of the two jaws and the push plate to prevent the bolt 11 from affecting the two jaws in pushing and pulling shaft parts.

[0036] The above-mentioned loading track 5 and unloading track 12 are connected end to end, that is, the discharging end 52 and the feeding end 122 are closely arranged, the discharging end 52 is used for discharging, and a partition 14 is provided on the discharging end 52, which is used to prevent shaft parts from escaping from the loading track 5, and there is a gap between the guard plate and the partition 14, and the gap forms the above-mentioned loading opening 51, and the partition 14 is located between the loading opening 51 and the unloading opening 121, and the side of the unloading track 12 close to the unloading opening 121 is connected to the partition 14, so that the unloading track 12 can follow the loading track 5 to move in the same direction on the base 16, so as to realize that the loading opening 51 and the unloading opening 121 can be moved to the loading end 41 respectively.

[0037] When the claw extends out of the centerless grinder to the unloading opening 121, in order to move the shaft parts to the bottom of the claw, the length of the partition 14 is set to be smaller than the distance between the fixed claw 8 and the adjustable claw 9, and a notch 141 is provided at the end away from the support plate 4 for the fixed claw 8 of the claw to pass through. The transverse movement device 6 moves the ground shaft parts out of the support plate 4 to the unloading opening 121 through the claw, collects the ground shaft parts through the unloading track 12, and then moves the loading track 5, the fixed claw 8 passes through the notch 141, and the adjustable claw 9 passes through the partition 14 close to the outside of the support plate 4, and moves the loading opening 51 to the loading end 41. At this time, the loading opening 51 and the unloading opening 121 are switched, so that the shaft parts on the loading track 5 are just located between the fixed claw 8 and the adjustable claw 9. By controlling the transverse movement device 6 to retract the push rod 7, the fixed claw 8 can pull the shaft parts in the loading opening 51 to between the grinding wheel 2 and the adjusting wheel 3 for grinding.

[0038] The shaft parts can roll along the length direction of the feeding track 5, and the axis of the shaft parts is parallel to the axis of the grinding wheel 2, that is, they can roll in the direction of the unloading end of the unloading device. In order to facilitate the fixed claw 8 to pass through the notch 141 to pull the shaft parts to the preset grinding position, guard plates are provided on both sides of the feeding track 5, and a baffle 17 is provided on the inner side of the guard plate away from the support plate 4. The length direction of the baffle 17 is consistent with the rolling direction of the shaft parts, and the width of the baffle 17 is the same as the length of the notch 141. The end of the baffle 17 close to the partition 14 has a gap with the partition 14. The width of the gap is larger than the diameter of a single shaft part and smaller than the diameter of two shaft parts. The gap is set to reserve a position for the fixed claw 8 to pass through the notch 141 to the feeding end 41, so as to facilitate pulling the shaft parts. (See Figure 2 and Figure 3 )

[0039] Regarding the specific structure of the transverse moving device 6, the transverse moving device 6 includes an electric push rod, which has an extension rod 62, which is connected to the push rod 7 through a push-pull long shaft 61, and the extension rod 62 is coaxial with the push rod 7. The electric push rod can drive the push rod 7 to move along the length direction of the support plate 4, and then drive the claw to move toward the outside of the housing 1, so as to pull the shaft parts of the feeding track 5 through the feeding opening 51 into the preset grinding position between the grinding wheel 2 and the adjusting wheel 3 for grinding.

[0040] The above-mentioned transverse movement device 6 also includes a protective cover 63, which is arranged on the side of the support plate 4 away from the loading track 5. The electric push rod is installed in the protective cover 63, and one end of the extension rod 62 can extend to the outside of the protective cover 63 and is connected to one end of the push-pull long shaft 61 through the baffle 15. The electric push rod drives the claw to move through the push-pull long shaft 61. The protective cover 63 is provided with a through hole, and the push-pull long shaft 61 is inserted into the through hole. The protective cover 63 can not only protect the electric push rod, but also guide the push-pull long shaft 61.

[0041] like Figure 7 As shown, in order to facilitate the push rod 7 to cooperate with the feeding track 5 to pull the ground shaft parts onto the support plate 4, a first travel switch 64 is provided on the outer side of the end of the protective cover 63 away from the push rod 7, and the baffle 15 is adapted to the first travel switch 64. The baffle 15 can contact the first travel switch 64 when the rod 62 is extended to the minimum stroke. At this time, the claw drives the ground shaft parts to the unloading opening 121 outside the shell 1, and the first travel switch 64 sends the received signal to the external industrial computer, which controls the movement of the transverse electric push rod 13 through the industrial computer, so that the feeding track 5 and the unloading track 12 move synchronously, and switch from the unloading opening 121 to the feeding opening 51;

[0042] A second travel switch 65 is provided on one side of the first travel switch 64, and a detection plate 66 is provided on the baffle 15. The length direction of the detection plate 66 is parallel to the axis of the extension rod 62, and the detection plate 66 can be slidably connected to one side of the protective cover 63. A detection end 67 is provided on the end of the detection plate 66 away from the baffle 15. The detection end 67 is adapted to the second travel switch 65. The detection end 67 can contact the second travel switch 65 when the extension rod 62 has a maximum travel. At this time, the claw drives the shaft parts of the loading opening 51 to move to the preset grinding position, and the second travel switch 65 sends the received signal to the external industrial computer, which controls the grinding wheel 2 to work, and then controls the transverse electric push rod 13 to move, so that the loading track 5 and the unloading track 12 move synchronously, switch from the loading opening 51 to the unloading opening 121, and wait for the unloading of the shaft parts.

Claims

1. A shaft parts feeding and exiting device of a centerless grinder, the centerless grinder comprising a grinding wheel (2), an adjusting wheel (3) and a vertical support plate (4), wherein the support plate (4) is located between the grinding wheel (2) and the adjusting wheel (3), and one end of the support plate (4) extends out of the grinding wheel (2) and is a feeding end (41), characterized in that: A base (16) is provided on the outer side of the grinding wheel (2), and a loading track (5) and a unloading track (12) are slidably connected to the base (16); one end of the loading track (5) is a discharging end (52); a loading opening (51) is provided on the side of the discharging end (52) close to the support plate (4); and a unloading opening (121) is provided on the side of the unloading track (12) close to the support plate (4); the loading opening (51) and the unloading opening (121) can be moved to the loading end (41) respectively; A push rod (7) parallel to the axis of the grinding wheel (2) is provided directly above the support plate (4); one end of the push rod (7) away from the feeding end (41) is connected to a transverse movement device (6); a claw adapted to an axial part is provided below the other end; the claw can extend out of the feeding end (41).

2. The shaft parts inlet and outlet device of a centerless grinder according to claim 1, characterized in that: The clamping claw comprises a fixed clamping claw (8) and an adjustable clamping claw (9) whose distance from the fixed clamping claw (8) is adjustable.

3. The shaft parts inlet and outlet device of a centerless grinder according to claim 2, characterized in that: The upper part of the adjustable claw (9) is movably connected to the push rod (7) and can move along the length direction of the push rod (7).

4. The shaft parts inlet and outlet device of a centerless grinder according to claim 3, characterized in that: The upper end of the adjustable claw (9) is in sliding contact with the lower surface of the push rod (7) and is connected to the push rod (7) via an adjusting member (11).

5. The shaft parts inlet and outlet device of a centerless grinder according to claim 4, characterized in that: A rotation groove (91) is provided on one side of the adjustable claw (9) close to the adjusting member (11), and one end of the adjusting member (11) passes through the pushing rod (7) and is rotatably arranged in the rotation groove (91).

6. The shaft parts inlet and outlet device of a centerless grinder according to claim 2, characterized in that: The fixed clamping claw (8) and the adjustable clamping claw (9) are located in the same vertical plane as the supporting plate (4).

7. The shaft parts inlet and outlet device of a centerless grinder according to claim 1, characterized in that: A partition (14) is provided on the discharge end, the partition (14) is located between the loading opening (51) and the unloading opening (121), and a side of the unloading track (12) close to the unloading opening (121) is connected to the partition (14).

8. The shaft parts inlet and outlet device of a centerless grinder according to claim 7, characterized in that: The length of the partition plate (14) is smaller than the distance between the fixed claw (8) and the adjustable claw (9), and a notch (141) is provided at one end away from the support plate (4) for the fixed claw (8) to pass through.

9. The shaft parts inlet and outlet device of a centerless grinder according to claim 1, characterized in that: The transverse movement device (6) comprises an electric push rod, which has an extension rod (62). The extension rod (62) is connected to the push rod (7) through a push-pull long shaft (61), and the extension rod (62) is coaxial with the push rod (7).

10. The shaft parts inlet and outlet device of a centerless grinder according to claim 9, characterized in that: The extending rod (62) and the end of the push-pull shaft (61) away from the clamping claw are connected through a baffle (15). A first travel switch is provided on the side of the housing of the electric push rod away from the loading device. The first travel switch cooperates with the baffle (15). The baffle (15) can be connected to the first travel switch when the extending rod (62) has a minimum travel.

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