Valve gate grinding machine

Abstract

A valve flashboard grinding machine belongs to the technical field of grinding machines and comprises a workbench and a rack, a motor is arranged in the rack and connected with a grinding turntable through a gearbox and a transmission shaft, the grinding turntable is located on the top side of the workbench, and a grinding tool is installed on the grinding turntable; the rack is connected with a fixing clamp used for clamping a flashboard, the fixing clamp comprises two fixing arms, the two fixing arms are symmetrically arranged on the two sides of the rack, and the top of each fixing arm is movably connected with a supporting arm through a fixing buckle; the two supporting arms are symmetrically arranged, the opposite ends of the two supporting arms are connected with clamping rods, and the two clamping rods are symmetrically arranged. The valve flashboard grinding machine is reasonable in design, simple in structure and convenient to carry and operate, has an adjusting function, can adjust the flashboard, not only can effectively reduce labor cost, but also can improve grinding precision, and is suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to a valve gate grinder. Background Art

[0002] A valve gate grinding machine is a device specifically designed for grinding and repairing valve gates. It is widely used for valve maintenance in industries such as petroleum, chemical, steel mills, and power plants. A valve gate grinding machine generally consists of a power unit, a transmission unit, a grinding head, and a support. The power unit provides the power required for grinding, while the transmission unit transmits the power to the grinding head, which directly contacts the valve gate for grinding. The support supports and secures the entire machine.

[0003] A valve gate grinding machine reshapes the sealing surface of a valve gate using a rotating grinding head. The grinding head is typically coated with a hard material, such as diamond, to enhance the grinding effect. During the grinding process, the grinding head maintains close contact with the valve gate. The friction generated by the rotation removes high points on the gate surface. Simultaneously, the lubricant chemically reacts to form an oxide film, protecting recessed areas from excessive grinding, thereby repairing the sealing surface.

[0004] Although valve gate grinding machines have many advantages in many aspects, they still have the following shortcomings in actual use: the existing valve gate grinding machines are bulky, making them inconvenient to carry; the high manufacturing cost increases the investment burden on users; and the complexity of the operation process requires specially trained operators to perform precise grinding operations, making it difficult to ensure grinding accuracy and affecting the final grinding quality. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art such as bulky structure, complicated operation and low grinding accuracy, and to provide a valve gate grinding machine with reasonable design, simple structure, easy transportation and operation, and an adjustment function, which can adjust the gate, can not only effectively reduce labor costs, but also improve grinding accuracy, and is suitable for promotion.

[0006] The utility model is realized through the following technical solutions: A valve gate grinding machine, which includes a workbench and a frame for installing the workbench. An electric motor is arranged inside the frame. The electric motor is connected to a grinding turntable through a gearbox and a transmission shaft. The grinding turntable is located on the top side of the workbench, and a grinding tool is installed on the grinding turntable. The frame is connected with a fixed fixture for clamping the gate. The fixed fixture is located above the grinding turntable and can cooperate with the grinding tool. The fixed fixture includes two fixed arms. The two fixed arms are symmetrically arranged on both sides of the frame. The top of each fixed arm is movably connected with a support arm through a fixed buckle. The two support arms are symmetrically arranged, and the opposite ends of the two support arms are both connected with clamping rods. The two clamping rods are symmetrically arranged, and the two clamping rods can clamp or loosen the gate through the support arms.

[0007] A further improvement of the utility model is that the fixed arm and the support arm are perpendicular to each other, and the support arm and the clamping rod are perpendicular to each other.

[0008] A further improvement of the utility model is that the fixed buckle includes a sleeve A slidably sleeved on the fixed arm and a sleeve B slidably sleeved on the support arm. The sleeve A and the sleeve B are perpendicularly connected, and fixing bolts for fixing positions are screwed on both the sleeve A and the sleeve B.

[0009] A further improvement of the utility model is that the two clamping rods are connected to each other through fixing rods arranged at both ends of them. A number of bolt through holes are provided on the fixing rods, and connecting bolts are arranged in the bolt through holes. The fixing rods are connected to the clamping rods through the connecting bolts.

[0010] A further improvement of the utility model is that a lifting arm is perpendicularly connected to the top end of one of the fixed arms. The lifting arm can lift the gate through a lifting tool.

[0011] A further improvement of the utility model is that the electric motor is connected to a junction box through a wire. An emergency stop button is arranged on the junction box, and the junction box is connected to a start-stop button through a wire.

[0012] It can be seen from the above technical solutions that the beneficial effects of the utility model are as follows: The structure of this grinding machine is simple, light in weight, convenient for moving and deploying, and reduces the manufacturing cost and labor cost. In addition, the operation of this grinding machine is simple, reduces the dependence on professional skills, and improves the usability and safety of the grinding operation. At the same time, this grinding machine can also adjust the height and angle of the gate according to the actual operation situation through the fixed fixture, effectively improving the grinding accuracy. Description of the Drawings

[0013] To more clearly illustrate the technical solution of the present utility model, the following will briefly introduce the attached drawings required for the description. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic structural diagram of a specific embodiment of the present utility model.

[0015] Figure 2 It is a schematic structural diagram of the fixing jig of a specific embodiment of the present utility model.

[0016] 1. Workbench; 2. Frame; 3. Motor; 4. Gearbox; 5. Transmission shaft; 6. Start-stop button; 7. Grinding turntable; 8. Fixed arm; 9. Fixed buckle; 901. Sleeve A; 902. Sleeve B; 10. Support arm; 11. Clamping rod; 12. Fixed bolt; 13. Fixed rod; 1301. Bolt through-hole; 14. Connecting bolt; 15. Suspension arm; 16. Junction box; 17. Emergency stop button. Detailed implementation manners

[0017] To make the objectives, features, and advantages of the present utility model more obvious and understandable, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the attached drawings in the specific embodiments of the present utility model. Obviously, the embodiments described below are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this patent.

[0018] Now referring to the attached Figure 1 and 2 , in conjunction with specific embodiments, the description is as follows: A valve gate grinding machine according to the present utility model includes a workbench 1 and a frame 2 for installing the workbench 1, and a motor 3 is arranged inside the frame 2; specifically, the motor 3 is connected to a junction box 16 through a wire, an emergency stop button 17 is arranged on the junction box 16, and the junction box 16 is connected to a start-stop button 6 through a wire; the start-stop button 6 is used to control the main circuit of the motor 3, and the emergency stop button 17 is a standby button for dealing with emergencies. When an emergency occurs, the emergency stop button 17 can immediately stop the operation of the motor 3. The circuit structure among the above-mentioned motor 3, junction box 16, emergency stop button 17, and start-stop button 6 can refer to existing electrical technologies.

[0019] The motor 3 is connected to a grinding turntable 7 through a gearbox 4 and a transmission shaft 5, and its specific structure can refer to existing grinders; the grinding turntable 7 is located on the top side of the workbench 1, and a grinding tool is installed on the grinding turntable 7; the machine frame 2 is connected with a fixed fixture for clamping the gate plate, the fixed fixture is located above the grinding turntable 7, and the fixed fixture can cooperate with the grinding tool; the fixed fixture includes two fixed arms 8, the two fixed arms 8 are symmetrically arranged on both sides of the machine frame 2, and the top of each fixed arm 8 is movably connected with a support arm 10 through a fixed buckle 9; the two support arms 10 are symmetrically arranged, and clamping rods 11 are connected to the opposite ends of the two support arms 10, the two clamping rods 11 are symmetrically arranged, and the two clamping rods 11 can clamp or loosen the gate plate through the support arms 10.

[0020] Specifically, the fixed arm 8 and the support arm 10 are perpendicular to each other, and the support arm 10 and the clamping rod 11 are perpendicular to each other; the fixed buckle 9 includes a sleeve A901 slidably sleeved on the fixed arm 8 and a sleeve B902 slidably sleeved on the support arm 10, the sleeve A901 and the sleeve B902 are perpendicularly connected, and fixing bolts 12 for fixing positions are screwed on both the sleeve A901 and the sleeve B902.

[0021] By sliding the sleeve A901, the support arm 10 can move up and down, and the up and down movement of the support arm 10 adjusts the height of the clamping rod 11; by the sleeve B902, the support arm 10 can move forward and backward, and the forward and backward movement of the support arm 10 realizes the relative or opposite movement between the two clamping rods 11, that is, makes the two clamping rods 11 clamp or loosen the gate plate. At the same time, by the sleeve B902, the support arm 10 and the clamping rod 11 can be rotated, and the rotation of the clamping rod 11 adjusts the angle of the gate plate.

[0022] The working principle of the present utility model: when grinding is required on site, after disassembling the valve, it is placed at the workbench 1 of this grinder. A grinding tool (such as grinding sandpaper, grinding sand, etc.) is installed on the grinding turntable 7. By adjusting the fixed buckle 9 of the fixed fixture, the clamping rod 11 can clamp the gate plate and adjust the angle of the gate plate, so as to ensure that the sealing surface is parallel to the grinding turntable 7. After the gate plate is fixed, then start the motor 3 to drive the grinding turntable 7 to rotate, so as to realize the function of grinding the sealing surface of the gate plate.

[0023] In one embodiment, two clamping rods 11 are connected to each other through fixing rods 13 provided at both ends thereof. A plurality of bolt through holes 1301 are formed in the fixing rods 13, and connecting bolts 14 are arranged in the bolt through holes 1301. The fixing rods 13 are connected to the clamping rods 11 through the connecting bolts 14. The clamping rods 11 and the fixing rods 13 are connected to each other to form a frame structure for fixing the gate plate. This structure can not only adapt to gate plates of different sizes, but also further improve the stability of the gate plate. It should be noted that a detachable connection structure is adopted between the clamping rod 11 and the support arm 10, and the clamping rod 11 can be prefabricated in a variety of sizes according to the actual operation conditions, that is, the length of the clamping rod 11 corresponds to the size of the gate plate.

[0024] In one embodiment, a lifting arm 15 is vertically connected to the top end of one of the fixed arms 8. The lifting arm 15 can lift the gate plate through a lifting tool. The staff can lift and support the gate plate at the workbench 1 through the lifting arm 15 and the lifting tool, which is convenient and easy to use.

[0025] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the various embodiments, reference can be made to each other.

[0026] The terms "upper", "lower", "outer side", "inner side", etc. in the specification, claims and drawings of the present utility model, if any, are used to distinguish the relative relationship in position and do not need to be given a qualitative definition. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A valve gate grinding machine, comprising a workbench (1) and a frame (2) for mounting the workbench (1), characterized in that, Inside the frame (2), there is a motor (3). The motor (3) is connected to a grinding turntable (7) through a gearbox (4) and a transmission shaft (5). The grinding turntable (7) is located on the top side of the workbench (1), and a grinding tool is installed on the grinding turntable (7). The frame (2) is connected with a fixed fixture for clamping the gate plate. The fixed fixture is located above the grinding turntable (7), and the fixed fixture can cooperate with the grinding tool. The fixed fixture includes two fixed arms (8). The two fixed arms (8) are symmetrically arranged on both sides of the frame (2). The top of each fixed arm (8) is movably connected with a support arm (10) through a fixed buckle (9). The two support arms (10) are symmetrically arranged, and the opposite ends of the two support arms (10) are both connected with clamping rods (11). The two clamping rods (11) are symmetrically arranged, and the two clamping rods (11) can clamp or loosen the gate plate through the support arms (10).

2. The valve gate grinding machine according to claim 1, wherein The fixed arm (8) and the support arm (10) are perpendicular to each other, and the support arm (10) and the clamping rod (11) are perpendicular to each other.

3. The valve gate grinding machine according to claim 2, wherein, The fixed buckle (9) includes a sleeve A (901) slidably sleeved on the fixed arm (8) and a sleeve B (902) slidably sleeved on the support arm (10). The sleeve A (901) is perpendicularly connected to the sleeve B (902), and fixing bolts (12) for fixing the position are screwed on both the sleeve A (901) and the sleeve B (902).

4. The valve gate grinding machine according to claim 3, characterized in that, The two clamping rods (11) are connected to each other through fixing rods (13) arranged at both ends thereof. A plurality of bolt through holes (1301) are formed in the fixing rods (13), and connecting bolts (14) are arranged in the bolt through holes (1301). The fixing rods (13) are connected to the clamping rods (11) through the connecting bolts (14).

5. A valve gate grinding machine according to claim 4, characterized in that, At the top end of one of the fixed arms (8), a lifting arm (15) is perpendicularly connected. The lifting arm (15) can lift the gate plate through a lifting tool.

6. The valve gate grinding machine according to claim 5, characterized in that The motor (3) is connected to a junction box (16) through a wire. An emergency stop button (17) is arranged on the junction box (16), and the junction box (16) is connected to a start-stop button (6) through a wire.

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