Conical surface grinding positioning device

Abstract

The utility model relates to the technical field of air valve machining, in particular to a conical surface grinding and positioning device which comprises a workbench, a top frame is arranged at the top of the workbench through supporting rods, a grinding mechanism is arranged at the bottom of the top frame through a guide rail, an adjusting plate is movably arranged at the top of the workbench, and supporting columns are fixed to the two sides of the top of the adjusting plate. A positioning frame used for installing a valve body is fixed to the top ends of the supporting columns, clamping blocks are symmetrically arranged on the two sides of the middle of the positioning frame, supporting blocks are arranged on the two sides of the adjusting plate, and positioning blocks used for limiting the inclined positions of the two ends of the adjusting plate are arranged on the inner sides of the supporting blocks. According to the conical surface grinding positioning device, the positioning angle of the valve can be adjusted so as to meet wider valve geometrical shape machining requirements, and the machining universality and flexibility are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve processing, in particular to a conical surface grinding and positioning device. Background Art

[0002] The engine's valve is located in its throat. It is responsible for sealing the combustion chamber and controlling the inlet and outlet of fuel gas and exhaust gas. It is a very precise part. Its quality is an important condition for ensuring the power performance, economic performance, reliability and durability of the internal combustion engine.

[0003] Patent No.: CN212735587U discloses a valve disc cone grinding and positioning device. The utility model drives the screw to rotate by shaking the crank handle. Since the clamping groove limits the arc clamping plate, the two arc clamping plates will move toward or away from each other. Then the valve body is clamped between the two arc clamping plates, and the angle of the sleeve is adjusted by loosening the bolts, so as to achieve the effect of adapting to different types of valves and improve the grinding range of the device. However, the valve body in the above technical solution can only be positioned in a single vertical position. This feature limits the device's ability to handle multi-angle grinding of the valve cone surface, especially for those high-end or special products that require precise non-vertical processing, and cannot meet the requirements of precise processing. Utility Model Content

[0004] The purpose of the utility model is to provide a conical surface grinding positioning device to solve the problem raised in the above background technology that the current valve can usually only be positioned at a single vertical position during grinding, and this feature limits the device's ability to handle multi-angle grinding of the valve conical surface.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a conical surface grinding and positioning device, comprising a workbench, a top frame is provided on the top of the workbench through a support rod, a grinding mechanism is provided on the bottom of the top frame through a guide rail, an adjustment plate is movably provided on the top of the workbench, pillars are fixed on both sides of the top of the adjustment plate, a positioning frame for installing a valve body is fixed on the top of the pillar, clamping blocks are symmetrically provided on both sides in the middle of the positioning frame, and support blocks are provided on both sides of the adjustment plate, and positioning blocks for limiting the inclination position of the two ends of the adjustment plate are provided on the inner side of the support blocks.

[0006] Preferably, screws are provided on both sides of the top of the positioning frame through grooves, and a threaded block is provided on the back side of the clamping block and is sleeved on the outside of the screw through a threaded structure, and handles connected to the outer ends of the screws are provided on both sides of the positioning frame.

[0007] Preferably, a through hole is provided in the middle of the positioning frame, and the clamping block is in an arc-shaped structure and is symmetrically located above the through hole in the middle of the positioning frame.

[0008] Preferably, a vertical opening is provided on the positioning block, and a locking screw is slidably connected to the vertical opening on the positioning block, and threaded holes matching the locking screw structure are provided on both sides of the front end of the adjustment plate.

[0009] Preferably, an elastic support sheet is connected between the inner wall of the support block and the positioning block, and the elastic support sheet is a bent structure.

[0010] Preferably, both sides of the top wall of the workbench are provided with a transverse axis through a recess, and the outer movable sleeve of the transverse axis is provided with a connecting sleeve, and a support rod is connected between the top of the connecting sleeve and the bottom of the adjustment plate.

[0011] Compared with the prior art, the utility model has the beneficial effect that the conical grinding positioning device can adjust the valve positioning angle to meet the requirements of a wider range of valve geometry processing, and improve the versatility and flexibility of processing. The device arranges an adjustment plate on the top of the workbench and uses a support to fix the positioning frame. When the positioning frame clamps and fixes the rod part of the valve body through two clamping blocks, the adjustment plate can control the left and right tilt angle of the positioning frame by tilting left and right on the top of the workbench, and the positioning blocks provided on both sides of the adjustment plate can quickly limit the angle after the tilt, so as to realize the function that the valve body can be positioned at multiple angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a cone grinding positioning device of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of a positioning frame of a conical surface grinding positioning device of the utility model;

[0014] Figure 3 This is a schematic diagram of the top view of the positioning frame of a conical surface grinding positioning device of the utility model;

[0015] Figure 4 The utility model is a schematic diagram of the inner structure of a support block of a conical surface grinding and positioning device.

[0016] In the figure: 1. workbench; 2. positioning frame; 21. threaded block; 22. screw; 23. handle; 3. clamping block; 4. top frame; 5. grinding mechanism; 6. support block; 7. positioning block; 8. adjustment plate; 9. pillar; 10. connecting sleeve; 11. horizontal axis; 12. support rod; 13. locking screw; 14. elastic support sheet. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments 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.

[0018] See also Figure 1-4The utility model provides a technical solution: a conical surface grinding positioning device, including a workbench 1, a top frame 4 is provided on the top of the workbench 1 through a support rod, a grinding mechanism 5 is provided at the bottom of the top frame 4 through a horizontal guide rail, and the grinding mechanism 5 is mainly composed of a mounting seat, a motor, and a grinding head. An adjusting plate 8 is movably provided on the top of the workbench 1, and the middle of the adjusting plate 8 is movably connected to the top of the workbench 1 through a hinge seat. Pillars 9 are welded and fixed on both sides of the top of the adjusting plate 8, and a positioning frame 2 for installing a valve body is welded and fixed on the top of the pillar 9. Clamping blocks 3 are symmetrically provided on both sides of the middle of the positioning frame 2, and support blocks 6 are provided on both sides of the adjusting plate 8. The bottom end of the support block 6 is welded and fixed to the top of the workbench 1, and the inner side of the support block 6 is provided with a for tilting the two ends of the adjusting plate 8 The positioning block 7 for limiting the oblique position, the positioning frame 2 of this structure can clamp and fix the rod part of the valve body by closing the two clamping blocks 3 to each other, so as to limit the valve body below the grinding mechanism 5, and the adjustment plate 8 can make the pillar 9 synchronously adjust the left and right inclination angles of the positioning frame 2 by tilting left and right on the top of the workbench 1, and then the positioning block 7 can limit the inclination position of the two ends of the adjustment plate 8 after adjustment by moving on the inner side of the support block 6, so that the adjustment plate 8 can synchronously lock the left and right inclination positions of the positioning frame 2, thereby achieving the function of adjusting the positioning angle of the valve body on the positioning frame 2, so as to meet the needs of the grinding mechanism 5 for multi-directional processing of the conical surface of the valve body, and avoid the prior art that usually can only position the valve body at a vertical angle and is difficult to meet a wider range of valve The geometric shape processing requirements are met, thereby improving the versatility and flexibility of the device for valve body processing. Screws 22 are provided on both sides of the top of the positioning frame 2 through grooves, and a threaded block 21 is welded and fixed on the back side of the clamping block 3, which is sleeved on the outside of the screw 22 through a threaded structure, and handles 23 fixedly connected to the outer ends of the screws 22 are provided on both sides of the positioning frame 2. The outer ends of the screws 22 pass through the two sides of the positioning frame 2 through a threaded structure. The handles 23 of this structure will drive the screw 22 to rotate when the side of the positioning frame 2 rotates, and the screw 22 will drive the threaded block 21 to move laterally outside it when it rotates. When the threaded block 21 moves laterally, the clamping blocks 3 can be closed together, so that the clamping blocks 3 can quickly and stably clamp the rod part of the valve body. The position is clamped and fixed, a through hole is provided in the middle of the positioning frame 2, and the clamping block 3 is an arc-shaped structure and is symmetrically located above the through hole in the middle of the positioning frame 2. The through hole in the middle of the positioning frame 2 of this structure can cooperate with the rod body part of the valve body to position the valve body at a suitable height. The top of the positioning block 7 is movably connected with the top inner wall of the support block 6 through a rotating shaft. A vertical opening is provided on the positioning block 7, and a locking screw 13 is slidably connected to the vertical opening on the positioning block 7, and threaded holes that match the locking screw 13 structure are provided on both sides of the front end of the adjusting plate 8. When the adjusting plate 8 of this structure is tilted left and right to a suitable position, the locking screw 13 can be accurately aligned with the threaded hole at the front end of the adjusting plate 8 through the vertical opening on the positioning block 7.In order to realize the effect of quickly locking the position of the adjusting plate 8 after tilting, an elastic support piece 14 is connected between the inner wall of the support block 6 and the positioning block 7. The connection between the elastic support piece 14 and the support block 6 and the positioning block 7 is welded and fixed. The elastic support piece 14 is made of thin metal material, and the elastic support piece 14 is a bent structure. When the positioning block 7 of this structure moves inside the support block 6, it will simultaneously drive the elastic support piece 14 to move. In this way, the elastic support piece 14 can play a certain degree of elastic support role on the positioning block 7 to ensure that the positioning block 7 is firmly fixed when limiting the end of the adjusting plate 8 The two sides of the top wall of the workbench 1 are provided with a transverse axis 11 through a notch, and the outer movable sleeve of the transverse axis 11 is provided with a connecting sleeve 10, and a support rod 12 is connected between the top of the connecting sleeve 10 and the bottom of the adjustment plate 8. The two ends of the support rod 12 are connected to the connecting sleeve 10 and the connection of the adjustment plate 8 through a pin. The adjustment plate 8 of this structure will synchronously drive the support rod 12 to move in a linkage process when tilting left and right. When the support rod 12 is linked, it will synchronously drive the connecting sleeve 10 to slide outside the transverse axis 11, which can further improve the stability of the adjustment plate 8 when it moves.

[0019] Working principle: When using the conical surface grinding and positioning device, first insert the rod body of the valve body into the through hole in the middle of the positioning frame 2 at an appropriate position, and then rotate the handles 23 on both sides of the positioning frame 2 respectively. The handles 23 will drive the screw rod 22 to rotate, and the screw rod 22 will drive the threaded block 21 to move laterally outside it when it rotates. When the threaded block 21 moves laterally and drives the two clamping blocks 3 to close together, the clamping block 3 can clamp and fix the rod body of the valve body. At this time, the grinding mechanism 5 can move laterally at the bottom of the top frame 4 through the horizontal guide rail to grind the conical surface of the valve body. When the valve body needs to be adjusted to a non-vertical processing angle, the adjustment plate 8 can be moved on the top of the workbench 1 The left and right tilting of the support 9 makes the pillar 9 synchronously adjust the left and right tilting angles of the positioning frame 2. The adjusting plate 8 will synchronously drive the support rod 12 to work in conjunction during the left and right tilting process. When the support rod 12 works in conjunction, it will synchronously drive the connecting sleeve 10 to slide on the outside of the horizontal axis 11. Then the positioning block 7 can be swung to a suitable position on the inner side of the support block 6. When the positioning block 7 moves on the inner side of the support block 6, it will synchronously drive the elastic support sheet 14 to move, and make the locking screw 13 move on the vertical opening of the positioning block 7 and accurately align with the threaded hole at the front end of the adjusting plate 8 to connect, so as to quickly lock the position of the adjusting plate 8 after tilting, so that the valve body can be positioned at a variety of different angles on the positioning frame 2, thereby completing a series of tasks.

[0020] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A conical surface grinding positioning device, comprising a workbench (1), a top frame (4) is provided on the top of the workbench (1) through a support rod, and a grinding mechanism (5) is provided on the bottom of the top frame (4) through a guide rail, characterized in that: An adjustment plate (8) is movably provided on the top of the workbench (1), pillars (9) are fixed on both sides of the top of the adjustment plate (8), a positioning frame (2) for mounting the valve body is fixed on the top of the pillar (9), clamping blocks (3) are symmetrically provided on both sides of the middle of the positioning frame (2), and support blocks (6) are provided on both sides of the adjustment plate (8), and positioning blocks (7) for limiting the tilting position of the two ends of the adjustment plate (8) are provided on the inner side of the support blocks (6).

2. A cone grinding positioning device according to claim 1, characterized in that: Screw rods (22) are provided on both sides of the top of the positioning frame (2) through grooves, and a threaded block (21) is provided on the back side of the clamping block (3) and is sleeved on the outside of the screw rod (22) through a threaded structure, and handles (23) connected to the outer ends of the screw rods (22) are provided on both sides of the positioning frame (2).

3. A cone grinding positioning device according to claim 2, characterized in that: A through hole is provided in the middle of the positioning frame (2), and the clamping block (3) is in an arc-shaped structure and is symmetrically located above the through hole in the middle of the positioning frame (2).

4. A cone grinding positioning device according to claim 1, characterized in that: The positioning block (7) is provided with a vertical opening, and the vertical opening on the positioning block (7) is slidably connected with a locking screw (13), and both sides of the front end of the adjustment plate (8) are provided with threaded holes that match the locking screw (13) structure.

5. A cone grinding positioning device according to claim 1, characterized in that: An elastic support sheet (14) is connected between the inner wall of the support block (6) and the positioning block (7), and the elastic support sheet (14) is a bent structure.

6. A cone grinding positioning device according to claim 1, characterized in that: A transverse axis (11) is provided on both sides of the top wall of the workbench (1) through a notch, and a connecting sleeve (10) is provided on the outer movable sleeve of the transverse axis (11), and a support rod (12) is connected between the top of the connecting sleeve (10) and the bottom of the adjustment plate (8).

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