Special milling and boring clamp for manufacturing pneumatic actuator

Abstract

The utility model relates to the technical field of pneumatic actuator manufacturing, and discloses a special milling and boring clamp for pneumatic actuator manufacturing, which comprises a workbench, and a movable fixing mechanism is arranged at the top of the workbench. The pneumatic actuator output shaft is placed on the second clamping block, then the air cylinder is started to enable the first clamping block to move downwards, the first clamping block and the second clamping block clamp and fix the pneumatic actuator output shaft, after the pneumatic actuator output shaft is fixed, the crank is rotated to enable the screw rod to rotate, and the screw rod rotates to enable the screw block to move backwards. The supporting plate can stably move the second fixing seat backwards, the backward movement of the second fixing seat can drive the output shaft of the pneumatic actuator to move backwards, the position of the graduated scale is observed in the moving process, and rotation of the screw rod is stopped after the graduated scale is moved to a certain position; in the moving process, the boring and washing depth of the output shaft of the pneumatic actuator can be accurately adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic actuator preparation, in particular to a special milling and boring fixture for pneumatic actuator preparation. Background Technique

[0002] The angular travel pneumatic actuator is an important driving device for angular travel pneumatic control valves (such as ball valves and butterfly valves). It has a large number of specifications and a large consumption. Moreover, each angular travel pneumatic actuator must have an output shaft (gear shaft) to transmit torque and drive valves and their accessories, such as stroke limit switches and pneumatic valve positioners, to achieve precise control of the medium (such as oil, water, steam, etc.) in the valve. The output shaft of the pneumatic actuator adopts a standard involute spur cylindrical gear structure.

[0003] According to the utility model with application number 201120387460.6, a general milling slot fixture includes a bottom plate and a positioning device and a clamping device arranged on the bottom plate. The clamping device has two clamping bodies arranged oppositely. The positioning device is slidably arranged on the bottom plate along the axial direction of the workpiece; at least one of the two clamping bodies is slidably arranged on the bottom plate.

[0004] For this device, its clamping device and positioning device are respectively slidably connected to the bottom plate along the axial direction of the workpiece. In this way, the clamping device can slide along the axial direction of the workpiece according to the length of the workpiece for length adjustment, and the positioning device can slide along the axial direction of the workpiece according to the shape of the workpiece for position adjustment, so that the general milling slot fixture provided by the utility model is applicable to various workpieces, avoiding the use of special fixtures for different workpieces, reducing the debugging time and improving the efficiency. However, this device only clamps and fixes the shaft, but cannot control the depth of the milling slot on the shaft surface. Content of the Utility Model

[0005] The purpose of the utility model is to provide a special milling and boring fixture for pneumatic actuator preparation to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A special milling and boring fixture for pneumatic actuator preparation, including a workbench, a moving and fixing mechanism is arranged on the top of the workbench, and a reciprocating mechanism is arranged near the back on the top of the workbench;

[0007] The moving and fixing mechanism includes a moving component and a fixing component. The moving component is arranged on the top of the workbench, and the fixing component is arranged on the top of the moving component;

[0008] The moving component includes a first fixed seat, which is fixedly connected to the top of the workbench. Inside the first fixed seat, screws are connected to the left and right near the back. The front end of the screw is fixedly connected to a crank. The surface of the screw is threadedly connected to a screw block. On the front and back sides of the first fixed seat, limiting rods are symmetrically and fixedly connected to the left and right. The surface of the limiting rod is slidably connected to a sliding sleeve back and forth. The surface of the sliding sleeve is fixedly connected to a fixing plate, and the bottom of the fixing plate is fixedly connected to a support plate.

[0009] Preferably, a hole matching the screw is provided on the front of the first fixed seat, and the surface of the screw penetrates and is rotatably connected to the hole.

[0010] Preferably, the other end of the fixing plate is fixedly connected to the left and right sides of the screw block. The fixing plate limits the screw block, so that the screw block can only move back and forth as the screw rotates.

[0011] Preferably, the fixing component includes a second fixed seat, which is fixedly connected to the top of the screw block. On the top of the second fixed seat, cylinders are symmetrically and fixedly connected to the left and right. The output end of the cylinder is fixedly connected to a first clamping block, and the bottom of the second fixed seat is fixedly connected to a second clamping block.

[0012] Preferably, the bottom of the second fixed seat is fixedly connected to the bottom of the support plate. A hole matching the output shaft of the cylinder is provided on the top of the second fixed seat, and the surface of the output shaft of the cylinder penetrates and is slidably connected to the hole.

[0013] Preferably, the reciprocating mechanism includes a third fixed seat, which is fixedly connected to the top of the workbench near the back. On the left and right sides of the third fixed seat, sliding rods are symmetrically and fixedly connected to the front and back. The surface of the sliding rod is slidably connected to a sliding frame left and right. The top of the sliding frame is fixedly connected to a first motor, and the output end of the first motor is fixedly connected to a milling and boring tool. On the top of the workbench near the left side of the back, a fixed sleeve frame is fixedly connected. A second motor is fixedly connected inside the fixed sleeve frame, and the output end of the second motor is fixedly connected to a disc. A fixed shaft is fixedly connected near the edge of the front of the disc. The surface of the fixed shaft is rotatably connected to a hinge rod, and a hinge frame is fixedly connected to the left side of the sliding frame.

[0014] Preferably, the other end of the hinge rod is hinged inside the hinge frame.

[0015] Compared with the prior art, the present utility model provides a special milling and boring fixture for the preparation of a pneumatic actuator, having the following beneficial effects:

[0016] 1. The special milling and boring fixture for manufacturing the pneumatic actuator places the output shaft of the pneumatic actuator on the second clamping block through the moving and fixing mechanism. Then, start the cylinder to make the first clamping block move downward. The first clamping block and the second clamping block clamp and fix the output shaft of the pneumatic actuator. After fixing the output shaft of the pneumatic actuator, turn the crank to make the screw rotate. The rotation of the screw will make the nut block move backward, thereby driving the sliding sleeve, the fixing plate, and the support plate to move backward. The support plate can stably move the second fixing seat backward. The backward movement of the second fixing seat will drive the output shaft of the pneumatic actuator to move backward. Observe the position of the scale during the movement. Stop the rotation of the screw after moving to a certain position. This movement process can accurately adjust the milling and boring depth of the output shaft of the pneumatic actuator.

[0017] 2. The special milling and boring fixture for manufacturing the pneumatic actuator, after fixing the output shaft of the pneumatic actuator through the reciprocating mechanism, starts the first motor to make the milling and boring tool rotate. Then, start the second motor to make the disc rotate. The rotation of the disc will make the fixed shaft perform circular rotation. The fixed shaft will drive the articulated rod to move left and right reciprocally. The articulated rod will drive the articulated frame member to move left and right reciprocally, thereby driving the sliding frame to move left and right reciprocally, further driving the milling and boring tool to move left and right reciprocally to mill and bore the output shaft of the pneumatic actuator. And because the milling and boring tool performs reciprocating movement, the output shaft of the pneumatic actuator can be milled and bored more thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0019] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the moving component of the structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the fixing component of the structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the back of the reciprocating mechanism of the structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the front of the reciprocating component of the structure of the present invention.

[0024] In the figure: 1, workbench; 2, moving and fixing mechanism; 21, moving component; 211, first fixing seat; 212, screw rod; 213, crank; 214, screw block; 215, limiting rod; 216, sliding sleeve; 217, fixing plate; 218, supporting plate; 22, fixing component; 221, second fixing seat; 222, air cylinder; 223, first clamping block; 224, second clamping block; 3, reciprocating mechanism; 31, third fixing seat; 32, sliding rod; 33, sliding frame; 34, first motor; 35, milling and boring cutter; 36, fixed sleeve frame; 37, second motor; 38, disc; 39, fixed shaft; 311, articulated rod; 312, articulated frame. Detailed implementation mode

[0025] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] The present invention provides the following technical solutions:

[0028] Embodiment 1

[0029] Please refer to Figures 1-3 , the present invention provides a technical solution: a special milling and boring fixture for the preparation of a pneumatic actuator, including a workbench 1, a moving and fixing mechanism 2 is arranged on the top of the workbench 1, and a reciprocating mechanism 3 is arranged near the back on the top of the workbench 1;

[0030] The moving and fixing mechanism 2 includes a moving component 21 and a fixing component 22. The moving component 21 is arranged on the top of the workbench 1, and the fixing component 22 is arranged on the top of the moving component 21;

[0031] The moving component 21 includes a first fixed seat 211 which is fixedly connected to the top of the workbench 1. Inside the first fixed seat 211, screws 212 are connected to the left and right near the back. The front end of the screw 212 is fixedly connected to a crank 213. A nut 214 is threadedly connected to the surface of the screw 212. On the front and back sides of the first fixed seat 211, limiting rods 215 are symmetrically and fixedly connected to the left and right. A sliding sleeve 216 is slidably connected to the surface of the limiting rod 215 in the front and back directions. A fixing plate 217 is fixedly connected to the surface of the sliding sleeve 216. A supporting plate 218 is fixedly connected to the bottom of the fixing plate 217.

[0032] A hole matching the screw 212 is formed in the front of the first fixed seat 211, and the surface of the screw 212 penetrates and is rotatably connected to the hole.

[0033] The other end of the fixing plate 217 is fixedly connected to the left and right sides of the nut 214. The fixing plate 217 limits the nut 214, so that the nut 214 can only move back and forth as the screw 212 rotates.

[0034] The fixing component 22 includes a second fixed seat 221 which is fixedly connected to the top of the nut 214. On the top of the second fixed seat 221, air cylinders 222 are symmetrically and fixedly connected to the left and right. The output end of the air cylinder 222 is fixedly connected to a first clamping block 223. A second clamping block 224 is fixedly connected to the bottom inside the second fixed seat 221.

[0035] The bottom of the second fixed seat 221 is fixedly connected to the bottom of the supporting plate 218. A hole matching the output shaft of the air cylinder 222 is formed in the top of the second fixed seat 221, and the surface of the output shaft of the air cylinder 222 penetrates and is slidably connected to the hole.

[0036] Embodiment 2

[0037] Please refer to Figures 4-5 , and on the basis of Embodiment 1, a reciprocating mechanism 3 is further obtained.

[0038] The reciprocating mechanism 3 includes a third fixed seat 31 which is fixedly connected to the top of the workbench 1 near the back. On the left and right sides inside the third fixed seat 31, sliding rods 32 are symmetrically and fixedly connected to the front and back. A sliding frame 33 is slidably connected to the surface of the sliding rod 32 in the left and right directions. A first motor 34 is fixedly connected to the top of the sliding frame 33. A boring cutter 35 is fixedly connected to the output end of the first motor 34. A fixed sleeve frame 36 is fixedly connected to the top of the workbench 1 near the back left. A second motor 37 is fixedly connected inside the fixed sleeve frame 36. A disc 38 is fixedly connected to the output end of the second motor 37. A fixed shaft 39 is fixedly connected to the front of the disc 38 near the edge. A hinged rod 311 is rotatably connected to the surface of the fixed shaft 39. A hinged frame 312 is fixedly connected to the left side of the sliding frame 33.

[0039] The other end of the hinged rod 311 is hinged inside the hinged frame 312.

[0040] In the actual operation process, when this device is in use, place the output shaft of the pneumatic actuator on the second clamping block 224, and then start the cylinder 222 to move the first clamping block 223 downward. The first clamping block 223 and the second clamping block 224 clamp and fix the output shaft of the pneumatic actuator. After fixing the output shaft of the pneumatic actuator, turn the crank 213 to rotate the screw 212. The rotation of the screw 212 will cause the nut block 214 to move backward, thereby driving the sliding sleeve 216, the fixing plate 217, and the support plate 218 to move backward. The support plate 218 can stably move the second fixed seat 221 backward. The backward movement of the second fixed seat 221 will drive the output shaft of the pneumatic actuator to move backward. Observe the position of the scale during the movement. Stop the rotation of the screw 212 after moving to a certain position. This movement process can accurately adjust the depth of boring the output shaft of the pneumatic actuator;

[0041] After fixing the output shaft of the pneumatic actuator, start the first motor 34 to rotate the boring tool 35, and then start the second motor 37 to rotate the disc 38. The rotation of the disc 38 will cause the fixed shaft 39 to rotate circularly. The fixed shaft 39 will drive the articulated rod 311 to move left and right reciprocally. The articulated rod 311 will drive the articulated frame 312 to move left and right reciprocally, thereby driving the sliding frame 33 to move left and right reciprocally, and further driving the boring tool 35 to move left and right reciprocally to bore the output shaft of the pneumatic actuator. And because the boring tool 35 moves reciprocally, the output shaft of the pneumatic actuator can be bored more thoroughly.

[0042] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A special milling and boring fixture for preparing a pneumatic actuator, comprising a workbench (1), characterized in that: A movable fixing mechanism (2) is arranged on the top of the workbench (1), and a reciprocating mechanism (3) is arranged on the top of the workbench (1) near the back; The movable fixing mechanism (2) comprises a movable component (21) and a fixed component (22), wherein the movable component (21) is arranged on the top of the workbench (1), and the fixed component (22) is arranged on the top of the movable component (21); The moving assembly (21) comprises a first fixed seat (211), the first fixed seat (211) being fixedly connected to the top of the workbench (1), a screw rod (212) being connected to the left and right sides of the first fixed seat (211) near the back, a crank handle (213) being fixedly connected to the front end of the screw rod (212), a screw block (214) being threadedly connected to the surface of the screw rod (212), a limit rod (215) being fixedly connected to the left and right sides of the front and rear sides of the first fixed seat (211) symmetrically, a sliding sleeve (216) being slidably connected to the surface of the limit rod (215), a fixed plate (217) being fixedly connected to the surface of the sliding sleeve (216), and a support plate (218) being fixedly connected to the bottom of the fixed plate (217).

2. A special milling and boring fixture for preparing a pneumatic actuator according to claim 1, characterized in that: A hole matching the screw rod (212) is provided on the front side of the first fixing seat (211), and the surface of the screw rod (212) passes through and is rotatably connected to the hole.

3. The special milling and boring fixture for preparing a pneumatic actuator according to claim 1, characterized in that: The other end of the fixing plate (217) is fixedly connected to the left and right sides of the screw block (214).

4. The special milling and boring fixture for preparing a pneumatic actuator according to claim 1, characterized in that: The fixing assembly (22) comprises a second fixing seat (221), the second fixing seat (221) being fixedly connected to the top of the screw block (214), a cylinder (222) being fixedly connected to the top of the second fixing seat (221) in a left-right symmetrical manner, a first clamping block (223) being fixedly connected to the output end of the cylinder (222), and a second clamping block (224) being fixedly connected to the inner bottom of the second fixing seat (221).

5. The special milling and boring fixture for preparing a pneumatic actuator according to claim 4, characterized in that: The bottom of the second fixing seat (221) is fixedly connected to the bottom of the support plate (218), the top of the second fixing seat (221) is provided with a hole matching the output shaft of the cylinder (222), and the surface of the output shaft of the cylinder (222) passes through and is slidably connected in the hole.

6. The special milling and boring fixture for preparing a pneumatic actuator according to claim 1, characterized in that: The reciprocating mechanism (3) comprises a third fixed seat (31), the third fixed seat (31) is fixedly connected to the top of the workbench (1) near the back, the third fixed seat (31) is symmetrically fixedly connected to the left and right sides of the third fixed seat (31), the surface of the sliding rod (32) is slidably connected to the sliding frame (33) from left to right, the top of the sliding frame (33) is fixedly connected to a first motor (34), the output end of the first motor (34) is fixedly connected to a washing and boring tool (35), the top of the workbench (1) near the back is fixedly connected to a fixed sleeve frame (36) on the left side, the fixed sleeve frame (36) is fixedly connected to a second motor (37), the output end of the second motor (37) is fixedly connected to a disk (38), the front of the disk (38) is fixedly connected to a fixed shaft (39) near the edge, the surface of the fixed shaft (39) is rotatably connected to a hinged rod (311), and the left side of the sliding frame (33) is fixedly connected to an hinged frame (312).

7. A special milling and boring fixture for preparing a pneumatic actuator according to claim 6, characterized in that: The other end of the hinged rod (311) is hinged inside the hinged frame (312).

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