Valve rod feeding and clamping device

Abstract

The utility model belongs to the field of valve rod machining, and provides a valve rod feeding and clamping device which comprises a machine table, a material box is arranged on the machine table, an outlet is formed in the bottom of the material box, a material blocking assembly is arranged on the machine table and right opposite to the outlet, and a clamping mechanism is arranged on the machine table and located in front of the material box. A material taking mechanism is arranged on the machine table and located between the outlet and the clamping mechanism, the clamping mechanism comprises a sliding way, a pair of left sliding seats and a pair of right sliding seats are arranged on the sliding way, a supporting seat is arranged between the two sliding seats, clamping shafts are rotationally arranged on the sliding seats, and a pair of left fixing seats and a pair of right fixing seats are arranged on the machine table and correspond to the sliding seats. After the valve rod is transferred to the supporting seat, the driving motor drives the corresponding belt pulley to rotate reversely, the belt rotates reversely along with the belt pulley, the left pull rod and the right pull rod push the left sliding seat and the right sliding seat to move oppositely until the valve rod is clamped by the two clamping shafts, and after the valve rod is clamped, the clamping shaft on the left side can be driven by the rotating motor to rotate, so that the valve rod is clamped. Therefore, the valve rod is driven to rotate.

Description

Technical Field

[0001] This utility model belongs to the field of valve stem processing, and in particular relates to a valve stem feeding and clamping device. Background Technology

[0002] As a key component of valves, the valve stem's machining quality and efficiency directly affect the overall performance and production cost of the valve. Valve stems are widely used in industries such as petroleum, chemical, metallurgy, and power, placing stringent requirements on their machining precision and surface quality.

[0003] During valve stem processing, a feeding clamping device is often used to feed valve stems one by one to the clamping position. However, the main technical problem in actual use is that existing clamping mechanisms usually use threaded rods or cylinders to drive a pair of left and right clamping shafts to move in opposite directions, with the two clamping shafts clamping both ends of the valve stem. Although this can accommodate valve stems of different specifications, the clamping is not secure enough, and it cannot simultaneously drive the valve stem to rotate during processing to change the processing angle. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a valve stem feeding clamping device, which aims to solve the above problems.

[0005] The present invention adopts the following technical solution:

[0006] The valve stem feeding clamping device includes a machine base, on which a material box is provided. The bottom of the material box has an outlet. A material blocking component is provided on the machine base directly opposite the outlet. A clamping mechanism is provided on the machine base in front of the material box. A material picking mechanism is provided on the machine base between the outlet and the clamping mechanism. The clamping mechanism includes a slide rail. A pair of left and right slide seats are provided on the slide rail. A support seat is provided between the two slide seats. A clamping shaft is rotatably provided on the slide seats. A pair of left and right fixed seats are provided on the machine base corresponding to the slide seats. A swing arm is rotatably provided on the fixed seat. The two swing arms are arranged vertically opposite to each other. A pull rod is rotatably provided on the swing arm. The pull rod is rotatably mounted on the slide seat on the same side. A pair of pulleys are rotatably provided on the fixed seat. A rotating wheel is provided on the shaft of the swing arm. A belt is provided on both the rotating wheel and the pulleys. A drive motor is provided on the right fixed seat. The drive motor drives either pulley to rotate.

[0007] Furthermore, the material handling mechanism includes a fixed frame, a rotating shaft rotatably mounted on the fixed frame, a clamping seat mounted on the rotating shaft, a plurality of limiting grooves opened at the front end of the clamping seat, a gripper positioned opposite one of the limiting grooves on the clamping seat, a feeding cylinder rotatably mounted on the machine base, and a linkage plate rotatably mounted on the drive shaft of the feeding cylinder, the linkage plate being fixedly mounted on the rotating shaft.

[0008] Furthermore, the left and right sides of the material box are provided with arc-shaped grooves at the outlet positions. The material blocking assembly includes a pair of clamping cylinders installed above the fixed frame. The drive shaft of the clamping cylinder is provided with a material blocking shaft, which is oriented towards the arc-shaped groove. The front side of the material box is provided with a pair of notches near the outlet position. The front side of the material box is provided with a blocking cylinder facing downwards. The drive shaft of the blocking cylinder is provided with a connecting plate, and the connecting plate is provided with a pair of blocking blocks, which are located in the corresponding notches.

[0009] Furthermore, the side wall of the hopper has an avoidance opening.

[0010] The beneficial effects of this utility model are as follows: When the material handling mechanism transfers the valve stem to the support seat, if the drive motor drives the corresponding pulley to rotate in the opposite direction, the belt will also rotate in the opposite direction. Under the drive of the left and right swing arms, the left and right tie rods push the left and right slides to move towards each other until the two clamping shafts clamp the valve stem. After the valve stem is clamped, during the processing, the left clamping shaft can be driven to rotate by the rotary motor, thereby driving the valve stem to rotate to adjust the processing position of the valve stem. Attached Figure Description

[0011] Figure 1 This utility model provides an overall drawing of a valve stem feeding and clamping device.

[0012] Figure 2 This is a schematic diagram of the clamping mechanism provided by this utility model.

[0013] Figure 3 This is a schematic diagram of the interior of the material bin provided by this utility model.

[0014] Figure 4 This utility model provides a schematic diagram of the installation of the connecting plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0016] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0017] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0018] Combination Figure 1-4As shown, the valve stem feeding clamping device includes a machine base 1, a material box 2 on the machine base 1, an outlet 3 at the bottom of the material box 2, a material blocking component on the machine base 1 directly opposite the outlet 3, a clamping mechanism on the machine base 1 in front of the material box 2, and a material picking mechanism on the machine base 1 between the outlet 3 and the clamping mechanism. The clamping mechanism includes a slide rail 4, a pair of left and right slide seats 5 on the slide rail 4, a support seat 6 between the two slide seats 5, a clamping shaft 7 rotatably mounted on the slide seats 5, and a pair of left and right fixed seats on the machine base 1 corresponding to the slide seats 5, wherein the left fixed seat is marked as 81 and the right fixed seat is marked as 82. The fixed base is rotatably provided with a swing arm 9, and the two swing arms 9 are arranged in opposite directions. The swing arm 9 is rotatably provided with a pull rod 10, which is rotatably mounted on a slide 5 on the same side. The fixed base is rotatably provided with a pair of pulleys 11. The shaft of the swing arm 9 is provided with a rotating wheel 12. The rotating wheel 12 and the pulleys 11 are provided with a belt 13. The right fixed base 82 is provided with a drive motor 14, which drives either pulley 11 to rotate.

[0019] As a key component of valves, the valve stem's machining quality and efficiency directly affect the valve's overall performance and production cost. Valve stems have extremely wide applications, placing stringent requirements on their machining accuracy and surface quality. This device can be used to deliver valve stems one by one, in an orderly manner, to the machining position for appropriate processing.

[0020] In this embodiment, the material box contains a certain number of valve stems, and a processing mechanism is provided on the machine base facing the clamping mechanism. The processing mechanism can process the valve stems. When the valve stems are fed to the processing position one by one in an orderly manner using this device, the material handling mechanism first transfers the valve stems located at the material box outlet to the support seat, and finally the clamping mechanism clamps both ends of the valve stems to facilitate the processing mechanism to process the valve stems.

[0021] In the above process, after the valve stem is transferred to the support seat by the material handling mechanism, the corresponding pulley is driven to rotate in the opposite direction by the drive motor, and the belt also rotates in the opposite direction. Driven by the two left and right swing arms, the two left and right tie rods push the two left and right slides to move towards each other until the two clamping shafts clamp the valve stem. Finally, the processing mechanism processes the valve stem.

[0022] In the diagram, a rotary motor 15 is mounted on the left slide block 5. The rotary motor 15 drives the clamping shaft 7 on the same side to rotate. When the valve stem is clamped, it can be driven by the rotary motor to rotate the clamping shaft on the left side during the machining process, thereby rotating the valve stem to adjust its machining position.

[0023] As a preferred structure, such as Figure 1The material handling mechanism includes a fixed frame 16, a rotating shaft 17 rotatably mounted on the fixed frame 16, a clamping seat 18 mounted on the rotating shaft 17, a plurality of limiting grooves 19 opened at the front end of the clamping seat 18, a clamping hand 20 positioned opposite one of the limiting grooves 19 on the clamping seat 18, a feeding cylinder 21 rotatably mounted on the machine base 1, a linkage plate 22 rotatably mounted on the drive shaft of the feeding cylinder 21, and the linkage plate 22 is fixedly mounted on the rotating shaft 17.

[0024] In this structure, the front end of the clamping seat has three limiting grooves. A gripper is provided on the clamping seat directly opposite the middle limiting groove, and the clamping end of the gripper is positioned opposite the middle limiting groove. When the valve stem is transferred using the material handling mechanism, the limiting groove is positioned close to and facing the outlet of the material box. After the valve stem falls from the outlet onto the limiting groove, the gripper clamps the middle position of the valve stem. Then, the feeding cylinder drives the clamping seat to rotate toward the clamping mechanism. When the clamping seat rotates to the correct position, the gripper releases the valve stem, and the valve stem falls onto the support seat.

[0025] Furthermore, as a specific structure, such as Figure 1 , Figure 3-4 The material box 2 has arc-shaped grooves 23 on both the left and right sides at the outlet position. The material blocking assembly includes a pair of clamping cylinders 24 installed above the fixed frame 16. The drive shaft of the clamping cylinder 24 is provided with a material blocking shaft 25. The material blocking shaft 25 is set towards the arc-shaped groove 23. The front side of the material box 1 has a pair of notches 26 near the outlet 3. The front side of the material box 2 is provided with a blocking cylinder 27 facing downward. The drive shaft of the blocking cylinder 27 is provided with a connecting plate 28. The connecting plate 28 is provided with a pair of blocking blocks 29. The blocking blocks 29 are located in the corresponding notches 26, and part of the blocking blocks are exposed outside the notches.

[0026] In this structure, the bottom plate of the material box is inclined downwards and forwards, and a material cavity 30 with an outlet 3 is formed at the bottom of the material box. Arc-shaped grooves are formed on both sides of the material cavity. In actual operation, the two clamping cylinders drive their respective baffle shafts to move a short distance towards the arc-shaped groove on the same side. The baffle shafts extend a small portion into the arc-shaped groove to form a stop. Then, the blocking cylinder drives the connecting plate to move upwards, and the blocking block moves a short distance away from the material cavity. After a valve rod in the material box falls into the material cavity, the two baffle shafts support both ends of the valve rod. Simultaneously, the blocking cylinder drives the connecting plate to move downwards, and the blocking block moves towards the material cavity and re-forms a stop, blocking subsequent valve rods.

[0027] When the material handling mechanism is used to transfer the valve stem located in the material chamber to the support seat, the limiting groove on the clamping seat is set towards the outlet. The two clamping cylinders drive the baffle shaft to reset, the baffle shaft disengages from the valve stem, and the valve stem falls onto the limiting groove.

[0028] In addition, such as Figure 4 The side wall of the material box 2 has an opening 31. The valve stem can be stacked in the material box as required through the opening.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A valve stem loading clamp apparatus, characterized by: The valve rod feeding clamping device comprises a machine table, a material box is arranged on the machine table, an outlet is formed in the bottom of the material box, a material blocking assembly is arranged on the machine table opposite to the outlet, a clamping mechanism is arranged on the machine table in front of the material box, a material taking mechanism is arranged on the machine table between the outlet and the clamping mechanism, the clamping mechanism comprises a slide, a pair of slide seats are arranged on the slide, a supporting seat is arranged between the two slide seats, a clamping shaft is rotatably arranged on the slide seat, a pair of fixed seats are arranged on the machine table corresponding to the slide seat, swing arms are rotatably arranged on the fixed seats, and the two swing arms are oppositely arranged, pull rods are rotatably arranged on the swing arms, the pull rods are rotatably arranged on the slide seat on the same side, a pair of belt pulleys are rotatably arranged on the fixed seat, a rotating wheel is arranged on the shaft of the swing arm, and the rotating wheel and the belt pulley are jointly provided with a belt, wherein a driving motor is arranged on the right fixed seat, and the driving motor drives any belt pulley to rotate.

2. The valve stem loading chucking device of claim 1, wherein: The material taking mechanism comprises a fixed frame, a rotating shaft is rotatably arranged on the fixed frame, a clamping seat is arranged on the rotating shaft, a plurality of limiting grooves are formed in the front end of the clamping seat, a clamping hand is arranged on the clamping seat opposite to one of the limiting grooves, a feeding cylinder is rotatably arranged on the machine table, a driving shaft of the feeding cylinder is rotatably provided with a linkage plate, and the linkage plate is fixedly installed on the rotating shaft.

3. The valve stem loading clamp of claim 2 wherein: Arc-shaped grooves are formed in the positions of the outlet on the left and right sides of the material box, the material blocking assembly comprises a pair of material clamping cylinders installed above the fixed frame, a material blocking shaft is arranged on the driving shaft of the material clamping cylinder, the material blocking shaft is arranged towards the arc-shaped groove, a pair of notches are formed in the front side of the material box close to the position of the outlet, a blocking cylinder is arranged on the front side of the material box downwards, a connecting plate is arranged on the driving shaft of the blocking cylinder, a pair of blocking blocks are arranged on the connecting plate, and the blocking blocks are arranged in the corresponding notches.

4. The valve stem loading chuck of claim 3 wherein: An avoiding opening is formed in the side wall of the material box.

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