Valve casting calibration device

Abstract

The utility model relates to the technical field of valves, in particular to a valve casting calibration device which comprises a box body, the bottom of the box body is connected with an adjusting clamping assembly, the adjusting clamping assembly comprises a fixing seat fixedly connected to the bottom of the box body, and a limiting groove is formed in the surface of the top end of the fixing seat; according to the valve casting calibration device, the adjusting and clamping assembly is arranged in the valve casting calibration device, the rotating rod in the adjusting and clamping assembly is used for driving the two-way lead screw to rotate, the two movable blocks are further driven to conduct transmission, and therefore the distance between the two movable blocks is adjusted so as to adapt to castings of different length specifications, the applicability of the device is improved, and the production efficiency is improved. And then a first motor works to drive a rotating shaft and a gear to rotate and further drive a rack and a sliding block to conduct transmission, so that two transmission blocks and a connecting rod are driven to be close to each other, a casting is stably clamped and fixed through a clamping block, positioning is completed, the effect of preventing position deviation of the casting during cutting machining is achieved, and the percent of pass of valve machining is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a calibration device for valve castings. Background Technique

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, and adjust and control the parameters of the transported medium. Valves are widely used in various industrial and civil fields, such as petroleum, chemical industry, electric power, water supply, heating, air conditioning and other fields. The selection and installation of valves have an important impact on the operation safety, efficiency and energy saving of pipeline systems. During valve production, operators need to calibrate and position the position of valve castings to ensure precise cutting and processing of the castings according to the required dimensions, thereby improving the qualification rate of valve finished products.

[0003] The existing calibration device for valve castings is inconvenient to adjust castings of different lengths, and it is inconvenient to fix the workpiece after calibration, resulting in the castings being prone to offset during the cutting and processing process, thus affecting the qualification rate of valve finished products. Therefore, a calibration device for valve castings is needed to improve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a calibration device for valve castings to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A calibration device for valve castings includes a box body. The bottom of the box body is connected with an adjustment and clamping assembly. The adjustment and clamping assembly includes a fixed seat fixedly connected to the bottom of the box body. A limit groove is provided on the top surface of the fixed seat. An axle fixer is fixedly assembled on the left side of the fixed seat. A rotating rod is rotatably connected to the left side of the fixed seat. The right end of the rotating rod is fixedly connected with a bidirectional lead screw. A movable block is threadedly sleeved on the surface of the bidirectional lead screw. The top of the movable block is fixedly connected with a fixing plate. Two sliding grooves are provided on the bottom surface of the fixing plate. Connecting plates are fixedly connected to the left and right sides of the top of the fixing plate. A connecting block is fixedly connected between the two connecting plates. A first motor is installed at the bottom of the connecting block. The output end of the first motor is drivingly connected with a rotating shaft. The bottom end of the rotating shaft is fixedly connected with a gear. Sliding blocks are slidably connected inside the two sliding grooves. Rack bars are fixedly connected to the front ends of the two sliding blocks. The two rack bars are meshed with the gear. Transmission blocks are fixedly connected to the left sides of the two sliding blocks. Connecting rods are fixedly connected to the tops of the two transmission blocks. Clamping blocks are fixedly connected to the front ends of the two connecting rods.

[0007] As a preferred embodiment of the present utility model, a second motor is installed at the top left of the box body. The output end of the second motor is drivingly connected to a transmission lead screw. A limiting rod is arranged at the rear end of the transmission lead screw. A slider is threadedly sleeved on the surface of the transmission lead screw. A hydraulic cylinder is installed at the bottom end of the slider. The output end of the hydraulic cylinder is fixedly connected to a mounting bracket. A cutting knife is fixedly assembled at the bottom of the mounting bracket. The limiting rod is slidably connected to the slider.

[0008] As a preferred embodiment of the present utility model, the threads at the left and right ends of the bidirectional lead screw are spirally arranged in opposite directions.

[0009] As a preferred embodiment of the present utility model, the size of the movable block is adapted to the limiting groove, and the connection method is a sliding connection.

[0010] As a preferred embodiment of the present utility model, the connecting rod penetrates through the connecting plate, and the connection method between the connecting rod and the connecting plate is a sliding connection.

[0011] As a preferred embodiment of the present utility model, a box door is hinged to the front end of the box body through a hinge. A handle is fixedly connected to the middle of the box door. Support columns are fixedly connected to the four corners at the bottom end of the box body.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, by providing an adjustment clamping assembly in the valve casting calibration device, the rotating rod in the assembly drives the bidirectional lead screw to rotate, further driving the two movable blocks to move, so as to adjust the distance between the two movable blocks to adapt to castings of different length specifications, improving the applicability of the device. Then, through the operation of the first motor, the rotating shaft and the gear rotate, further driving the rack and the sliding block to move, so as to drive the two transmission blocks and the connecting rod to approach each other, and the clamping block stably clamps and fixes the casting, thus completing the positioning, achieving the effect of preventing the position of the casting from shifting during cutting and processing, and improving the qualified rate of valve processing. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the adjustment clamping assembly of the present utility model;

[0016] Figure 3 It is a schematic diagram of the partial structure of the present utility model;

[0017] Figure 4 It is a schematic diagram of a part of the structure of the present utility model.

[0018] In the figure: 1. Box body; 101. Box door; 102. Handle; 103. Support column; 2. Adjusting clamping assembly; 20. Shaft fixator; 201. Fixed seat; 202. Limiting groove; 203. Rotating rod; 204. Bidirectional lead screw; 205. Movable block; 206. Fixed plate; 207. Connecting plate; 208. Connecting block; 209. Slide groove; 210. First motor; 211. Rotating shaft; 212. Gear; 213. Sliding block; 214. Rack; 215. Driving block; 216. Connecting rod; 217. Clamping block; 3. Second motor; 301. Driving lead screw; 302. Limiting rod; 303. Slide block; 304. Hydraulic cylinder; 305. Mounting bracket; 306. Cutting tool. Specific embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment: Please refer to Figures 1-4A valve casting calibration device shown in the figure includes a box body 1. The bottom of the box body 1 is connected with an adjustment clamping assembly 2. The adjustment clamping assembly 2 includes a fixed seat 201 fixedly connected to the bottom of the box body 1. A limit groove 202 is opened on the top surface of the fixed seat 201. A shaft fixer 20 is fixedly assembled on the left side of the fixed seat 201. A rotating rod 203 is rotatably connected to the left side of the fixed seat 201. The right end of the rotating rod 203 is fixedly connected with a bidirectional lead screw 204. A movable block 205 is threadedly sleeved on the surface of the bidirectional lead screw 204. The top of the movable block 205 is fixedly connected with a fixing plate 206. Two sliding grooves 209 are opened on the bottom surface of the fixing plate 206. Connecting plates 207 are fixedly connected to the left and right sides of the top of the fixing plate 206. A connecting block 208 is fixedly connected between the two connecting plates 207. A first motor 210 is installed at the bottom of the connecting block 208. The output end of the first motor 210 is drivingly connected with a rotating shaft 211. The bottom end of the rotating shaft 211 is fixedly connected with a gear 212. Sliding blocks 213 are slidably connected inside the two sliding grooves 209. Rack bars 214 are fixedly connected to the front ends of the two sliding blocks 213. The two rack bars 214 are both engaged with the gear 212. Transmission blocks 215 are fixedly connected to the left sides of the two sliding blocks 213. Connecting rods 216 are fixedly connected to the tops of the two transmission blocks 215. Clamping blocks 217 are fixedly connected to the front ends of the two connecting rods 216. During use, an operator drives the bidirectional lead screw 204 to rotate by rotating the rotating rod 203, and further drives the two movable blocks 205 to move, so as to adjust the distance between the two movable blocks 205 to adapt to castings of different length specifications, improving the applicability of the device. Then, by operating the first motor 210, the rotating shaft 211 and the gear 212 are driven to rotate, and further the rack bars 214 and the sliding blocks 213 are driven to move, so as to drive the two transmission blocks 215 and the connecting rods 216 to approach each other, and the casting is stably clamped and fixed by the clamping blocks 217, thus completing the positioning, achieving the effect of preventing the position of the casting from shifting during cutting and processing, and improving the qualified rate of valve processing. The shaft fixer 20 prevents the bidirectional lead screw 204 from loosening after reaching the position.

[0021] In this embodiment, referring to Figure 1 and 4As shown, a second motor 3 is installed at the left top of the box body 1. The output end of the second motor 3 is drivingly connected to a transmission lead screw 301. A limiting rod 302 is arranged at the rear end of the transmission lead screw 301. A slider 303 is threadedly sleeved on the surface of the transmission lead screw 301. A hydraulic cylinder 304 is installed at the bottom end of the slider 303. The output end of the hydraulic cylinder 304 is fixedly connected to a mounting frame 305. A cutting tool 306 is fixedly assembled at the bottom of the mounting frame 305. The limiting rod 302 is slidably connected to the slider 303. During use, the operator turns on the second motor 3 to drive the slider 303, and then the hydraulic cylinder 304 works to drive the cutting tool 306 downward to cut the casting. The limiting rod 302 plays a role in limiting and guiding the slider 303.

[0022] In this embodiment, referring to Figure 1 and 2 As shown, the threads at the left and right ends of the bidirectional lead screw 204 are spirally arranged in opposite directions. During use, the threads in opposite directions of the bidirectional lead screw 204 can drive the two movable blocks 205 to approach or move away from each other, thereby adjusting the distance between the two movable blocks 205.

[0023] In this embodiment, referring to Figure 1 and 3 As shown, the size of the movable block 205 is adapted to the limiting groove 202, and the connection method is a sliding connection. During use, the limiting groove 202 plays a role in limiting and guiding the movable block 205, making the transmission of the movable block 205 stable.

[0024] In this embodiment, referring to Figure 1 and 3 As shown, the connecting rod 216 penetrates through the connecting plate 207, and the connection method between the connecting rod 216 and the connecting plate 207 is a sliding connection. During use, the connecting rod 216 slides in the connecting plate 207, making the transmission of the connecting rod 216 more stable.

[0025] In this embodiment, referring to Figure 1 As shown, a box door 101 is hinged to the front end of the box body 1 through a hinge. A handle 102 is fixedly connected to the middle of the box door 101. Support columns 103 are fixedly connected to the four corners of the bottom end of the box body 1. During use, the operator can open the box door 101 through the handle 102, and the support columns 103 play a supporting role for the device.

[0026] Working principle: During use, the operator loosens the shaft fixer 20, then rotates the rotating rod 203 to drive the bidirectional lead screw 204 to rotate, further driving the transmission of the two movable blocks 205, thereby adjusting the distance between the two movable blocks 205 to adapt to castings of different length specifications, improving the applicability of the device. Then, the shaft fixer 20 is tightened. Then, through the operation of the first motor 210, the rotating shaft 211 and the gear 212 are driven to rotate, further driving the transmission of the rack 214 and the sliding block 213, thereby driving the two transmission blocks 215 and the connecting rod 216 to approach each other, and the clamping block 217 stably clamps and fixes the casting, thus completing the positioning, achieving the effect of preventing the position deviation of the casting during cutting processing, and improving the qualification rate of valve processing.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve casting calibration device, comprising a box body (1), characterized in that: The bottom of the box body (1) is connected with an adjusting and clamping assembly (2); The adjusting and clamping assembly (2) includes a fixed seat (201) fixedly connected to the bottom of the box body (1). A limiting groove (202) is formed on the top surface of the fixed seat (201). An axle fixer (20) is fixedly assembled on the left side of the fixed seat (201). A rotating rod (203) is rotatably connected to the left side of the fixed seat (201). The right end of the rotating rod (203) is fixedly connected with a bidirectional lead screw (204). A movable block (205) is threadedly sleeved on the surface of the bidirectional lead screw (204). The top of the movable block (205) is fixedly connected with a fixing plate (206). Two sliding grooves (209) are formed on the bottom surface of the fixing plate (206). Connecting plates (207) are fixedly connected to the left and right sides of the top of the fixing plate (206). A connecting block (208) is fixedly connected between the two connecting plates (207). A first motor (210) is installed at the bottom of the connecting block (208). The output end of the first motor (210) is in transmission connection with a rotating shaft (211). A gear (212) is fixedly connected to the bottom end of the rotating shaft (211). Sliding blocks (213) are slidably connected to the interiors of the two sliding grooves (209). Rack bars (214) are fixedly connected to the front ends of the two sliding blocks (213). The two rack bars (214) are both meshed with the gear (212). Transmission blocks (215) are fixedly connected to the left sides of the two sliding blocks (213). Connecting rods (216) are fixedly connected to the tops of the two transmission blocks (215). Clamping blocks (217) are fixedly connected to the front ends of the two connecting rods (216).

2. The calibration device for a valve casting according to claim 1, wherein: A second motor (3) is installed at the left top of the box body (1). The output end of the second motor (3) is in transmission connection with a transmission lead screw (301). A limiting rod (302) is arranged at the rear end of the transmission lead screw (301). A slider (303) is threadedly sleeved on the surface of the transmission lead screw (301). A hydraulic cylinder (304) is installed at the bottom end of the slider (303). The output end of the hydraulic cylinder (304) is fixedly connected with a mounting bracket (305). A cutting knife (306) is fixedly assembled at the bottom of the mounting bracket (305). The limiting rod (302) is slidably connected with the slider (303).

3. The calibration device for a valve casting according to claim 1, characterized in that: The threads at the left and right ends of the bidirectional lead screw (204) are spirally arranged in opposite directions.

4. A valve casting calibration device according to claim 1, characterized in that: The size of the movable block (205) is adapted to the limiting groove (202), and the connection mode is a sliding connection.

5. A valve casting calibration device according to claim 1, characterized in that: The connecting rod (216) penetrates through the connecting plate (207), and the connection mode between the connecting rod (216) and the connecting plate (207) is a sliding connection.

6. The calibration device for a valve casting according to claim 1, wherein: The front end of the box body (1) is hinged with a box door (101) through a hinge, a handle (102) is fixedly connected to the middle of the box door (101), and support columns (103) are fixedly connected to the four corners of the bottom end of the box body (1). 。

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