End convex grinding machine for machining engine tappet

Abstract

The utility model discloses an end convex grinding machine for machining an engine tappet, which relates to the technical field of end convex grinding machines, comprises a rack and a support frame fixedly arranged at the bottom of the rack, and is characterized in that rotating grooves are formed in the top and the bottom of the rack, rotating columns are rotationally arranged in the two rotating grooves, the sections of the two rotating columns are arranged in an annular shape, and the rotating columns are arranged in the rotating grooves. A rotating column is fixedly arranged on the rack, sleeves are fixedly arranged on the sides close to each other, tips are arranged between the sleeves and the rotating column through a jacking mechanism, a motor is fixedly arranged at the bottom of the inner wall of the supporting frame, an output shaft of the motor is fixedly connected with the rotating column, a driving screw is rotationally arranged in the rack, and the rod wall of the driving screw is sleeved with a movable plate in a threaded mode. According to the machine frame, the driving screw rod, the moving plate, the adjusting mechanism, the connecting block and the grinding piece, the position of the grinding piece can be adjusted according to the specification of an engine tappet needing to be machined, the grinding piece can be matched with the interior of a grinding undercut of the side wall of the tappet, and the grinding machining multifunctionality of the grinding machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of end convex grinding machines, in particular to an end convex grinding machine for machining engine tappets. Background Art

[0002] The engine tappet is a component of the engine valve mechanism, which is usually located between the camshaft and the valve. When the engine tappet is processed, its outer wall and the inside of the middle overtravel groove need to be polished.

[0003] After deceleration, patent number CN219426353U discloses an end convex grinder for processing engine tappets. The grinder is provided with a U-shaped plate, a first grinding sheet, an adjusting screw, a connecting block and a second grinding sheet. The adjusting screw on the right side of the U-shaped plate is rotated so that the adjusting screw is rotated to the left, and the connecting block is moved to the left from the groove, so that the second grinding sheet sleeved on the left side of the connecting block extends into the overtravel groove on the surface of the tappet. Then the motor is started to rotate the U-shaped plate on the surface of the tappet, so that the upper and lower ends, the surface and the overtravel groove of the tappet are all polished, thereby achieving comprehensive polishing of the tappet, thereby improving the polishing efficiency of the engine tappet.

[0004] However, there are many different types of engine tappets. The positions of the overrun grooves on the outer walls of different tappets are different, and the internal depths and widths are also different. The grinding plate in the above-mentioned device is fixed in position and cannot be used to grind the inside of the overrun grooves of various types of engine tappets. Utility Model Content

[0005] In view of the problems existing in the above-mentioned existing end convex grinding machines for machining engine tappets, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide an end convex grinder for processing engine tappets, which solves the problem that the grinding plate of the grinder in the prior art is fixed in position and cannot be used to grind the inside of the overtravel groove of various types of engine tappets.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An end convex grinder for machining engine tappets, comprising a frame and a support frame fixedly arranged at the bottom of the frame, the top and bottom of the frame are both provided with rotation grooves, two rotation grooves are both rotatably provided with rotation columns, the cross sections of the two rotation columns are both annularly arranged, and sleeves are fixedly arranged on one side close to each other, a top is arranged between the sleeve and the rotation column through a tightening mechanism, a motor is fixedly arranged at the bottom of the inner wall of the support frame, and the output shaft of the motor is fixedly connected to the rotation column;

[0009] A driving screw is rotatably arranged inside the frame, a movable plate is threadedly sleeved on the rod wall of the driving screw, a connecting block is arranged at the end of the movable plate through an adjusting mechanism, and a grinding sheet is sleeved on the outer side of the connecting block.

[0010] Preferably, the tightening mechanism includes a pushing screw, the thread of the pushing screw is arranged inside the side close to the sleeve and the rotating column, the bottom of the pushing screw is fixedly provided with a first rotating block, and the top of the pushing screw is rotatably arranged inside the top.

[0011] Preferably, the cross-sections of the sleeve and the top are both rectangular.

[0012] Preferably, the adjustment mechanism includes an adjusting screw, which is rotatably connected to the end of the movable plate, and a threaded tube is provided on the outer threaded sleeve, and the threaded tube is fixedly connected to the connecting block, and two symmetrically arranged telescopic rods are fixedly provided between the connecting block and the movable plate.

[0013] Furthermore, a groove is provided on the side wall of the grinding sheet, slots are provided on both sides of the inner wall of the groove, and two symmetrically arranged movable grooves are provided on the outer wall of the connecting block. An insertion rod is slidably passed through the groove wall of the movable groove, and the insertion rod is plugged into the slot, a spring is fixed between the insertion rod and the inner wall of the movable groove, a pull rod is fixed on the rod wall of the insertion rod, and the end of the pull rod passes through the movable groove and extends to the outside.

[0014] Preferably, a second rotating block is fixedly provided at the lower end of the driving screw.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The utility model, through the frame, driving screw, movable plate, adjusting mechanism, connecting block and grinding sheet, can adjust the position of the grinding sheet according to the specifications of the engine tappet to be processed, so that it can cooperate with the inside of the overrun groove of the tappet side wall, thereby improving the versatility of the grinding machine.

[0017] 2. The utility model can stably clamp the engine tappet before grinding through the frame, support frame, rotating groove, rotating column, sleeve, clamping mechanism and top, thereby improving the stability during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A;

[0021] Figure 3 For the utility model Figure 1 An enlarged schematic diagram of part B.

[0022] Description of reference numerals:

[0023] 1. Frame; 2. Support frame; 3. Rotating column; 4. Sleeve; 5. Center; 6. Motor; 7. Driving screw; 8. Moving plate; 9. Connecting block; 10. Grinding sheet; 11. Pushing screw; 12. First rotating block; 13. Adjusting screw; 14. Threaded tube; 15. Telescopic rod; 16. Insert rod; 17. Spring; 18. Pull rod; 19. Second rotating block. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model embodiment discloses an end convex grinding machine for machining engine tappets.

[0026] The utility model provides Figure 1-3 The end convex grinder for machining an engine tappet shown comprises a frame 1 and a support frame 2 fixedly arranged at the bottom of the frame 1, characterized in that a rotating groove is provided at the top and the bottom of the frame 1, a rotating column 3 is rotatably arranged in the two rotating grooves, the cross sections of the two rotating columns 3 are both arranged in a ring shape, and a sleeve 4 is fixedly arranged on one side close to each other, a top 5 is provided between the sleeve 4 and the rotating column 3 through a tightening mechanism, a motor 6 is fixedly arranged at the bottom of the inner wall of the support frame 2, and the output shaft of the motor 6 is fixedly connected to the rotating column 3;

[0027] A driving screw 7 is rotatably provided inside the frame 1, and a movable plate 8 is threadedly sleeved on the rod wall of the driving screw 7. A connecting block 9 is provided at the end of the movable plate 8 through an adjusting mechanism. A grinding sheet 10 is sleeved on the outer side of the connecting block 9. The adjusting mechanism includes an adjusting screw 13, which is rotatably connected to the end of the movable plate 8, and a threaded tube 14 is threadedly sleeved on the outer side. The threaded tube 14 is fixedly connected to the connecting block 9, and two symmetrically arranged telescopic rods 15 are fixedly provided between the connecting block 9 and the movable plate 8. A second rotating block 19 is fixedly provided at the lower end of the driving screw 7.

[0028] Before processing the engine tappet, the engine tappet is set between the two top points 5 and clamped by the two top points 5. Then, the second rotating block 19 is rotated according to the position of the over-travel groove on the outer side of the engine tappet, so that the driving screw 7 rotates and drives the movable plate 8 to move longitudinally at the same time, so that the movable plate 8 can drive the connecting block 9 and the grinding sheet 10 to move to the over-travel groove. Then, the adjusting screw 13 is rotated, so that the adjusting screw 13 can drive the threaded tube 14 to move horizontally under the support of the two telescopic rods 15, so that the connecting block 9 can drive the grinding sheet 10 to enter the over-travel groove, and the inner wall of the over-travel groove can be quickly ground when the engine tappet is rotated to.

[0029] In order to be able to stably clamp the engine tappet before processing, such as Figure 1-2 As shown, the cross-sections of the sleeve 4 and the top 5 are both rectangular, and the tightening mechanism includes a pushing screw 11, which is threadedly arranged inside the sleeve 4 and the rotating column 3 on one side thereof, a first rotating block 12 is fixedly arranged at the bottom of the pushing screw 11, and the top of the pushing screw 11 is rotatably arranged inside the top 5.

[0030] Before processing the engine tappet, first rotate the first rotating block 12 below so that the pushing screw 11 can push the lower top 5 under the limit of the inner wall of the sleeve 4, and then place the engine tappet on the top of the lower top 5, and then repeat the above operation, and make the upper top 5 contact with the top of the tappet, so that the engine tappet can be stably clamped under the opposite pressing of the two tops 5, so that under the drive of the motor 6, it can cooperate with the top to drive the engine tappet to rotate stably.

[0031] In order to be able to replace the grinding sheet 10 according to the internal specifications of different overrun grooves, Figure 1 and Figure 3 As shown, the side wall of the grinding plate 10 is provided with a groove, and slots are provided on both sides of the inner wall of the groove. The outer wall of the connecting block 9 is provided with two symmetrically arranged movable grooves, and an insertion rod 16 is slidably penetrated through the groove wall of the movable groove. The insertion rod 16 is plugged into the slot, and a spring 17 is fixed between the insertion rod 16 and the inner wall of the movable groove. A pull rod 18 is fixedly provided on the rod wall of the insertion rod 16, and the end of the pull rod 18 passes through the movable groove and extends to the outside.

[0032] When the grinding sheet 10 does not match the inside of the overtravel groove, the two pull rods 18 can be pulled so that the pull rod 19 squeezes the spring 17 and is pulled out from the inside of the slot. At this time, the grinding sheet 10 can be removed from the connecting block 9 and a grinding sheet 10 of another specification can be installed, so that the overtravel groove inside the engine tappet can be effectively ground, thereby improving the use effect of the grinder.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An end convex grinding machine for machining engine tappets, comprising a frame (1) and a support frame (2) fixedly arranged at the bottom of the frame (1), characterized in that: The frame (1) is provided with a rotating groove at the top and the bottom, and a rotating column (3) is rotatably arranged in each of the two rotating grooves. The cross-sections of the two rotating columns (3) are both annular, and sleeves (4) are fixedly arranged on the adjacent sides. A top (5) is provided between the sleeve (4) and the rotating column (3) via a tightening mechanism. A motor (6) is fixedly arranged at the bottom of the inner wall of the support frame (2), and the output shaft of the motor (6) is fixedly connected to the rotating column (3); A driving screw rod (7) is rotatably provided inside the frame (1), a movable plate (8) is threadedly sleeved on the rod wall of the driving screw rod (7), a connecting block (9) is provided at the end of the movable plate (8) via an adjusting mechanism, and a grinding sheet (10) is sleeved on the outer side of the connecting block (9).

2. The end convex grinding machine for machining engine tappets according to claim 1, characterized in that: The tightening mechanism comprises a pushing screw (11), wherein the pushing screw (11) is threadedly arranged inside a side close to the sleeve (4) and the rotating column (3), a first rotating block (12) is fixedly arranged at the bottom of the pushing screw (11), and the top of the pushing screw (11) is rotatably arranged inside the top (5).

3. The end convex grinding machine for machining engine tappets according to claim 1, characterized in that: The cross sections of the sleeve (4) and the top (5) are both rectangular.

4. The end convex grinding machine for machining engine tappets according to claim 1, characterized in that: The adjusting mechanism comprises an adjusting screw (13), the adjusting screw (13) being rotatably connected to the end of the movable plate (8), and a threaded tube (14) being provided on the outer threaded sleeve, the threaded tube (14) being fixedly connected to the connecting block (9), and two symmetrically arranged telescopic rods (15) being fixedly provided between the connecting block (9) and the movable plate (8).

5. The end convex grinding machine for machining engine tappets according to claim 1, characterized in that: The side wall of the grinding plate (10) is provided with a groove, and slots are provided on both sides of the inner wall of the groove. The outer wall of the connecting block (9) is provided with two symmetrically arranged movable grooves, and an insertion rod (16) is slidably penetrated through the groove wall of the movable groove. The insertion rod (16) is plugged into the slot, and a spring (17) is fixed between the insertion rod (16) and the inner wall of the movable groove. A pull rod (18) is fixedly provided on the rod wall of the insertion rod (16), and the end of the pull rod (18) passes through the movable groove and extends to the outside.

6. The end convex grinding machine for machining engine tappets according to claim 1, characterized in that: A second rotating block (19) is fixedly provided at the lower end of the driving screw rod (7).

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