Multi-station valve machining rotary table device

Abstract

The utility model relates to a multi-station valve machining rotary table device. Comprising a supporting mounting plate, a mounting turntable and a rotary driving assembly, a plurality of groups of rolling support assemblies in rolling contact with the bottom surface of the mounting rotary table are mounted on the support mounting plate; a plurality of groups of guide seat assemblies which are uniformly distributed in the circumferential direction are mounted on the mounting rotary table, a workpiece clamping assembly capable of moving in a lifting manner is mounted on each guide seat assembly in a sliding manner, and a plurality of groups of lifting transmission assemblies are arranged on the mounting rotary table in a penetrating manner; the jacking assembly is mounted on the supporting mounting plate; the workpiece clamping assembly comprises a clamping lifting base arranged on the guide base assembly in a penetrating mode, a workpiece support is installed on the clamping lifting base, a passage connecting mechanism is rotationally connected to the clamping lifting base, a rotary connector is connected to the lower end of the passage connecting mechanism, and a pneumatic clamping jaw penetrating through the workpiece support is connected to the upper end of the passage connecting mechanism. When the valve body moves to the station of the machining device along with the rotary table, automatic jacking can be achieved, so that the valve body is separated from the rotary table, the table top of the rotary table is prevented from being stressed in the machining process, and a workpiece can be driven to rotate according to machining requirements.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve machining technical field, especially relate to a multi -station valve machining rotary table device. BACKGROUND

[0002] Valves are used to open and close the pipeline, control flow, adjust and control the parameters of the pipeline accessories of the conveying medium. According to its function, it can be divided into shut-off valve, check valve and regulating valve. The valve used in the fluid control system has various structures and functions, from the simplest stop valve to the various valves used in the extremely complex automatic control system, and the variety and specification are quite numerous. The valve body is the main component of the valve, and other parts of the valve are installed on the valve body to form the valve.

[0003] When the valve body is machined, multiple positions on the blank need to be machined, such as drilling, tapping, polishing, turning and milling and boring, if each machining position and each machining process is machined by a separate machine tool, and automation is realized, a large number of workpiece transfer or directional mechanisms are needed, and multiple clamping is needed, which has the disadvantages of low working efficiency, difficult to guarantee machining precision and high equipment cost. In order to solve the above problems, people have designed a multi-station rotary table, which is a device widely used in industrial automation. Its principle is to rotate the rotary table to send the clamped workpiece to each process in turn for machining, so as to realize automatic production, which has the advantages of completing multiple processes with one clamping, and can realize the flow line operation of multiple workpieces.

[0004] At present, when the traditional multi-station rotary table is used to clamp and transfer the valve body, when the valve body to be machined moves to the corresponding drilling, polishing and other machining device station with the rotary table, the machining device directly drills, polishes and other operations on the corresponding position on the rotary table, which will cause uneven stress on the rotary table. Although it will not affect the device in a short time, but since the machining rotary table device needs to run for a long time, eventually it will cause the rotary table to tilt to a certain extent, and this tilt is irreversible. The tilted rotary table will affect the normal operation of the valve body machining operation. In addition, the structure of the traditional multi-station rotary table is relatively simple, and the valve body to be machined can only move with the rotary table in revolution, and cannot realize rotation, so it cannot meet the machining needs of some workpieces that need to rotate, therefore it is urgent to design a multi-station valve machining rotary table device to solve the above problems. Utility model content

[0005] The utility model discloses a multi-station valve machining rotary table device with reasonable structure design to solve the technical problems in the prior art.

[0006] The utility model discloses a multi-station valve machining rotary table device that includes a support mounting plate, an installation rotary table disposed above the support mounting plate, a rotary drive assembly for driving the installation rotary table to rotate, a plurality of rolling support assemblies installed on the support mounting plate and in rolling contact with the bottom surface of the installation rotary table to support the installation rotary table, a plurality of guide seat assemblies evenly distributed circumferentially installed on the installation rotary table, a workpiece clamping assembly installed on each guide seat assembly and capable of lifting and moving, a plurality of lifting transmission assemblies slidably connected to the installation rotary table, and the plurality of lifting transmission assemblies are connected to the plurality of workpiece clamping assemblies one-to-one, a jacking assembly installed on the support mounting plate for jacking the lifting transmission assemblies above the jacking assembly, the workpiece clamping assembly includes a clamping lifting seat slidably connected to the guide seat assembly, a workpiece support installed on the clamping lifting seat, a passageway connecting mechanism rotatably connected to the clamping lifting seat, a rotary joint connected to the lower end of the passageway connecting mechanism, and a pneumatic clamping jaw connected to the upper end of the passageway connecting mechanism and penetrating through the workpiece support, and a clamping rotating mechanism for driving the passageway connecting mechanism to rotate.

[0007] The utility model provides a multi-station valve machining rotary table device, the plurality of guide seat assemblies, workpiece clamping assemblies, and lifting transmission assemblies on the installation rotary table are driven to rotate synchronously by the rotary drive assembly, and then the valve workpieces clamped by the workpiece clamping assemblies are transferred to the corresponding machining positions one by one, the lifting transmission assemblies above the jacking assembly are pushed upward by the jacking assembly, and then the workpiece clamping assemblies are pushed upward to separate from the guide seat assemblies, the force is applied to the ejected workpiece support during the machining process, and the force is not applied to the installation rotary table, the installation rotary table is prevented from tilting due to uneven force for a long time, the workpiece is rotated by the clamping rotating mechanism, the pneumatic clamping jaw installed on the passageway connecting mechanism is rotated, the clamped workpiece is rotated, the machining requirements are met, and the applicability is strong, the installation rotary table is stably supported by the plurality of rolling support assemblies in rolling contact with the installation rotary table, the force applied to the installation rotary table is uniform, and the stability of the installation rotary table in operation is improved.

[0008] Preferably, a plurality of groups of through holes are evenly distributed circumferentially on the mounting turntable, and positioning drill sleeves are mounted in the through holes; the positioning pin assembly is mounted on the support mounting plate and can be inserted into the positioning drill sleeves above.

[0009] Preferably, the jacking assembly includes two groups of jacking guide rods which are slidably connected to the support mounting plate through linear bearings, are longitudinally arranged, and are provided with a mounting connecting plate at lower ends; the jacking cylinder is mounted on the support mounting plate and has an extended end connected to the mounting connecting plate.

[0010] Preferably, the lifting transmission assembly includes two groups of pushing connecting rods which are slidably connected to the mounting turntable through linear bearings and are longitudinally arranged, and the two groups of pushing connecting rods are coaxially arranged with the two groups of jacking guide rods; the transmission lifting seat is mounted at upper ends of the two groups of pushing connecting rods and is connected to the clamping lifting seat through a connecting rod; the spring top plate is mounted at a lower end of each pushing connecting rod, and the return spring is arranged on each pushing connecting rod between the corresponding spring top plate and the linear bearing.

[0011] Preferably, the passage connecting mechanism includes a passage rotating shaft coaxially connected to lower ends of the pneumatic clamping jaws and rotationally connected to the clamping lifting seat; the rotary joint is connected to the lower end of the passage rotating shaft through a connecting rod; the wire passage is formed in the center of the passage rotating shaft and communicates with upper and lower end faces of the passage rotating shaft; the gas passage is distributed around the wire passage, and the upper port and the lower port of each gas passage are respectively connected to the upper peripheral wall and the lower end face of the passage rotating shaft; and the air nozzle is mounted at the upper port and the lower port of each gas passage.

[0012] Preferably, the clamping rotating mechanism includes the workpiece rotating motor mounted on the clamping lifting seat, and the transmission belt wheel pair is mounted between the output shaft of the workpiece rotating motor and the passage connecting mechanism.

[0013] Preferably, the rolling support assembly includes the lower support mounted on the support mounting plate, a plurality of groups of strip-shaped holes longitudinally extending in the lower support, the bolt arranged in the strip-shaped hole, the adjustable upper support mounted on the bolt, the support roller rotationally connected to the upper end of the adjustable upper support, and the outer peripheral wall of the support roller rotationally connected to the mounting turntable. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 is a schematic diagram of the local three-dimensional structure of the main part in the utility model;

[0016] Figure 3 is a schematic diagram of the three-dimensional structure of the workpiece clamping assembly in the utility model;

[0017] Figure 4 Figure 2 is a sectional view of the passage connecting mechanism in the utility model;

[0018] Figure 5 Figure 3 is a perspective view of the positioning pin assembly in the utility model;

[0019] Figure 6 Figure 4 is a side view of the main body part in the utility model.

[0020] In the figure: 1, installation turntable; 2, rolling support assembly; 2-1, lower support; 2-2, adjustable upper support; 2-3, supporting roller; 3, rotary drive assembly; 3-1, rotary drive motor; 3-2, transmission sprocket pair; 3-3, protractor; 4, jacking assembly; 4-1, installation connecting plate; 4-2, jacking cylinder; 4-3, jacking guide rod; 5, support installation plate; 6, guide seat assembly; 6-1, guide seat support rod; 6-2, guide seat top plate; 7, workpiece clamping assembly; 7-1, rotary joint; 7-2, clamping lifting seat; 7-3, clamping rotary mechanism; 7-3-1, transmission pulley pair; 7-3-2, workpiece rotary motor; 7-4, pneumatic clamping jaw; 7-5, workpiece support; 7-6, passage connecting mechanism; 7-6-1, gas passage; 7-6-2, passage rotating shaft; 7-6-3, thrust ball bearing; 7-6-4, bearing mounting seat; 7-6-5, threading passage; 8, lifting transmission assembly; 8-1, pushing connecting rod; 8-2, spring top plate; 8-3, return spring; 8-4, transmission lifting seat; 9, positioning drill sleeve; 10, positioning pin assembly; 10-1, positioning cylinder; 10-2, pin shaft sleeve; 10-3, positioning bolt; 10-4, positioning mounting seat; 11, total support. DETAILED DESCRIPTION

[0021] In order to further understand the invention content, characteristics and effects of the utility model, the following embodiments are described in detail as follows:

[0022] Please see Figure 1 The multi-station valve machining turntable device of the utility model comprises a support installation plate 5, an installation turntable 1 is arranged above the support installation plate 5, and a rotary drive assembly 3 for driving the installation turntable 1 to rotate is further included. The embodiment further comprises a total support 11 provided with a plurality of groups of supporting legs and casters at the bottom, the above-mentioned support installation plate 5 is located above the top surface of the total support 11, and a plurality of groups of supporting rods installed on the total support 11 are further included, and the support installation plate 5 is fixedly connected with the total support 11 through the above-mentioned plurality of groups of supporting rods.

[0023] As Figure 6As shown in the drawings, the rotating drive assembly 3 comprises a protractor 3-3 installed on the support mounting plate 5, the output shaft of the protractor 3-3 is connected with the mounting turntable 1, and further comprises a rotating drive motor 3-1 installed on the total bracket 11, and a transmission sprocket pair 3-2 is installed between the output shaft of the rotating drive motor 3-1 and the input shaft of the protractor 3-3; the transmission sprocket pair 3-2 comprises a driving sprocket keyed on the output shaft of the rotating drive motor 3-1, and further comprises a driven sprocket keyed on the input shaft of the protractor 3-3, and a transmission chain is installed between the driving sprocket and the driven sprocket.

[0024] As shown in the drawings, Figure 1 A plurality of groups of rolling support assemblies 2 are installed on the support mounting plate 5 and are in rolling contact with the bottom surface of the mounting turntable 1 and support the mounting turntable 1. Further referring to Figure 2 The rolling support assembly 2 comprises a lower support 2-1 installed on the support mounting plate 5, a plurality of groups of longitudinally extending strip-shaped holes are formed in the lower support 2-1, bolts are threaded through the strip-shaped holes, and an adjustable upper support 2-2 is installed by the bolts, a support roller 2-3 is rotatably connected to the upper end of the adjustable upper support 2-2, and the outer peripheral wall of the support roller 2-3 is rotatably connected with the mounting turntable 1. Through the above arrangement, it is convenient for the workers to disassemble and assemble the support roller 2-3, and it is convenient for maintenance and daily maintenance.

[0025] As shown in the drawings, Figure 1 A plurality of groups of guide seat assemblies 6 are uniformly distributed in the circumferential direction and are installed on the mounting turntable 1, a workpiece clamping assembly 7 is slidably installed on each guide seat assembly 6 and can be lifted and lowered, a plurality of groups of lifting transmission assemblies 8 are threaded through the mounting turntable 1 and are in sliding connection with the mounting turntable 1, and the plurality of groups of lifting transmission assemblies 8 are respectively connected in one-to-one correspondence with the plurality of groups of workpiece clamping assemblies 7; a jacking assembly 4 is installed on the support mounting plate 5 and is used to jacking the lifting transmission assembly 8 above it.

[0026] As shown in the drawings, Figure 2 The guide seat assembly 6 comprises a plurality of groups of guide seat support rods 6-1 longitudinally arranged and fixedly connected to the mounting turntable 1, a guide seat top plate 6-2 is installed on the upper end of the plurality of groups of guide seat support rods 6-1, and a through slot is formed in the middle of the guide seat top plate 6-2.

[0027] The workpiece clamping assembly 7 comprises a clamping lifting seat 7-2 slidably connected with the plurality of groups of guide seat support rods 6-1 through a linear bearing, a workpiece support 7-5 is installed on the clamping lifting seat 7-2 through a connecting rod, a passageway connecting mechanism 7-6 is rotatably connected to the clamping lifting seat 7-2, a rotary joint 7-1 is connected to the lower end of the passageway connecting mechanism 7-6, and a pneumatic clamping jaw 7-4 is connected to the upper end of the passageway connecting mechanism 7-6 and penetrates through the workpiece support 7-5; further comprising a clamping rotating mechanism 7-3 for driving the passageway connecting mechanism 7-6 to rotate. The rotary joint 7-1 is a gas-electric integrated rotary joint.

[0028] As shown in Figure 4 , the passage connecting mechanism 7-6 includes a passage rotating shaft 7-6-2 coaxially connected at the lower end of the pneumatic clamping jaw 7-4 and rotatably connected with the clamping lifting seat 7-2, and the rotary joint 7-1 is connected with the lower end of the passage rotating shaft 7-6-2 through a connecting rod; a threading passage 7-6-5 is formed in the center of the passage rotating shaft 7-6-2 and communicates with the upper and lower end faces thereof, and a plurality of gas passages 7-6-1 are distributed around the threading passage 7-6-5; the upper and lower ports of each gas passage 7-6-1 respectively communicate with the upper end peripheral wall and the lower end face of the passage rotating shaft 7-6-2, and a gas nozzle is installed at each of the upper and lower ports of each gas passage 7-6-1. A through slot corresponding to each group of rotary joints 7-1 is formed in the mounting turntable 1 and can be penetrated by the corresponding rotary joint 7-1. In addition, the fixed end of the rotary joint 7-1 can be connected with the transmission lifting seat 8-4 through a connecting rod and a screw, so that the fixed end of the rotary joint 7-1 can move up and down with the pneumatic clamping jaw 7-4, but will not rotate.

[0029] In actual work process, the electric wire line is threaded in the above-mentioned threading passage 7-6-5, and the gas flows in and out from the above-mentioned each gas passage 7-6-1; the gas circuit of the pneumatic clamping jaw 7-4 is connected with the above-mentioned each gas passage 7-6-1 through a gas pipeline. Among them, the passage rotating shaft 7-6-2 is in T-shaped structure, the upper end of the passage rotating shaft 7-6-2 is rotatably connected with the clamping lifting seat 7-2 through a thrust ball bearing 7-6-3, and the passage connecting mechanism 7-6 further includes a bearing mounting seat 7-6-4 installed at the lower end of the clamping lifting seat 7-2, and the passage rotating shaft 7-6-2 is rotatably connected with the bearing mounting seat 7-6-4 through the thrust ball bearing 7-6-3.

[0030] Further referring to Figure 3 , the clamping rotating mechanism 7-3 includes a workpiece rotating motor 7-3-2 installed on the clamping lifting seat 7-2, and a transmission belt wheel pair 7-3-1 is installed between the output shaft of the workpiece rotating motor 7-3-2 and the passage connecting mechanism 7-6. The transmission belt wheel pair 7-3-1 includes a driving belt wheel keyed on the output shaft of the workpiece rotating motor 7-3-2, and a driven belt wheel keyed at the lower end of the passage rotating shaft 7-6-2, and a transmission belt is connected between the above-mentioned driving belt wheel and driven belt wheel.

[0031] As shown in Figure 2As shown, the lifting transmission assembly 8 described above includes two groups of push connecting rods 8-1 which are longitudinally arranged and slidably connected with the mounting turntable 1 through linear bearings, and the two groups of push connecting rods 8-1 are coaxially arranged with the two groups of lifting guide rods 4-3; a transmission lifting seat 8-4 is mounted at the upper end of each push connecting rod 8-1, and the transmission lifting seat 8-4 is connected with the clamping lifting seat 7-2 through a connecting rod; a spring top plate 8-2 is mounted at the lower end of each push connecting rod 8-1, and a return spring 8-3 is arranged on each push connecting rod 8-1 between the corresponding spring top plate 8-2 and the linear bearing. Further, a gasket is sleeved on each push connecting rod 8-1 below the corresponding linear bearing, and the two ends of the return spring 8-3 are in tight contact with the gasket and the spring top plate 8-2, respectively. In addition, a through slot is formed in the transmission lifting seat 8-4 to avoid the transmission belt wheel pair 7-3-1.

[0032] As shown in the figure, Figure 2 The lifting assembly 4 described above includes two groups of lifting guide rods 4-3 which are slidably connected with the support mounting plate 5 through linear bearings, and the two groups of lifting guide rods 4-3 are longitudinally arranged and have a mounting connecting plate 4-1 mounted at the lower end; a lifting cylinder 4-2 is mounted on the support mounting plate 5, and the extending end of the lifting cylinder 4-2 is connected with the mounting connecting plate 4-1. The lifting assembly 4 is provided in multiple groups, and the multiple groups of lifting assemblies 4 are distributed in a circumferential direction, and the number of the lifting assemblies 4 is consistent with the number of the machining devices matched on the side of the turntable device. The extending end of the lifting cylinder 4-2 is arranged downward, and the extending end of the lifting cylinder 4-2 penetrates through the support mounting plate 5 and is connected with the mounting connecting plate 4-1.

[0033] In the actual working process, the retraction of the piston rod of the corresponding lifting cylinder 4-2 can drive the mounting connecting plate 4-1 to rise, and then drive the two groups of lifting guide rods 4-3 to respectively push the corresponding push connecting rods 8-1 upward, so that the two groups of push connecting rods 8-1 move upward, the upward moving push connecting rods 8-1 can drive the transmission lifting seat 8-4 mounted thereon to move upward, and then drive the clamping lifting seat 7-2 to move upward along the guide seat support rod 6-1, so that the workpiece support 7-5 is separated from the guide seat assembly 6, and then the workpiece clamped and fixed by the pneumatic clamping jaw 7-4 is lifted to a position away from the mounting turntable 1. Through the above arrangement, the acting force in the machining process is pressed on the ejected workpiece support 7-5, and will not act on the mounting turntable 1, so as to avoid uneven force on the mounting turntable 1, and the ejection height of the workpiece support 7-5 is realized by the lifting cylinder 4-2.

[0034] As shown in the figure, Figure 1As shown, in order to lock the position of the mounting turntable 1, a plurality of groups of through holes are arranged on the mounting turntable 1 in a circumferential direction, and a positioning drill sleeve 9 is arranged in each through hole, and a positioning pin assembly 10 is arranged on the support mounting plate 5, and the positioning pin assembly 10 can be inserted and matched with the positioning drill sleeve 9 moving above it.

[0035] As shown in the figure, the positioning pin assembly 10 includes a positioning mounting base 10-4 fixedly connected to the support mounting plate 5, and a pin shaft sleeve 10-2 is arranged on the top of the positioning mounting base 10-4. Figure 5 As shown in the figure, the positioning pin assembly 10 includes a positioning mounting base 10-4 fixedly connected to the support mounting plate 5, and a pin shaft sleeve 10-2 is arranged on the top of the positioning mounting base 10-4.

[0036] Working principle:

[0037] In the actual working process, the valve workpiece to be machined is placed on the workpiece support 7-5 in the workpiece clamping assembly 7, and the pneumatic clamping jaw 7-4 is started to clamp and fix the valve.

[0038] The rotating drive motor 3-1 in the rotating drive assembly 3 is started to drive the mounting turntable 1 to rotate, so that the valve workpieces clamped by the workpiece clamping assembly 7 are moved one by one to the machining stations below the corresponding machining devices. After being moved to the machining stations, the piston rod of the lifting cylinder 4-2 in the corresponding lifting assembly 4 is retracted to push the mounting connecting plate 4-1 upwards, and then drive the two sets of lifting guide rods 4-3 to move upwards to achieve the purpose of pushing the corresponding spring top plate 8-2 and then pushing the pushing connecting rod 8-1. The upward moving pushing connecting rod 8-1 can drive the transmission lifting seat 8-4 mounted thereon to move upwards, and then push the clamping lifting seat 7-2 to move upwards along the guide seat support rod 6-1, so that the workpiece support 7-5 is separated from the guide seat assembly 6, and then the workpiece clamped by the pneumatic clamping jaw 7-4 is lifted to a position away from the mounting turntable 1, and the workpiece is processed by the machining device. If necessary, the workpiece rotating motor 7-3-2 can be started to drive the passage connecting mechanism 7-6 and the pneumatic clamping jaw 7-4 to rotate synchronously, and then drive the workpiece to rotate. Through the above arrangement, the force is applied to the ejected workpiece support 7-5 during the machining process, and is not applied to the mounting turntable 1, so that the mounting turntable 1 is not subjected to uneven force, and the ejection height of the workpiece support 7-5 is realized by the lifting cylinder 4-2.

[0039] During the upward movement of the pushing connecting rod 8-1, the corresponding return spring 8-3 is compressed. After the machining operation of the valve workpiece is completed, the piston rod of the corresponding lifting cylinder 4-2 is extended to move the lifting guide rod 4-3 downwards until the lifting guide rod 4-3 is separated from the corresponding spring top plate 8-2. During the downward movement of the lifting guide rod 4-3, the spring top plate 8-2 and the pushing connecting rod 8-1 are reset under the action of the return spring 8-3, so that the workpiece support 7-5 is placed on the guide seat assembly 6, and then the workpiece support 7-5 is supported by the guide seat assembly 6, waiting for the next lifting and machining operation.

Claims

1. A multi-station valve machining turntable apparatus, characterized by: The utility model provides a kind of rotating workpiece clamping device, including support mounting plate (5), installation turntable (1) is provided above support mounting plate (5), further include the rotation driving assembly (3) for driving installation turntable (1) rotation;On support mounting plate (5) installation and installation turntable (1) bottom surface rolling contact and support it multiple groups of rolling support assembly (2);Multiple groups of guide seat assemblies (6) are installed on installation turntable (1) and are evenly distributed along the circumference, liftable workpiece clamping assembly (7) is slidably installed on each guide seat assembly (6), further include multiple groups of lifting transmission assembly (8) and slide connection with it on installation turntable (1) are threaded, multiple groups of lifting transmission assembly (8) are respectively connected with multiple groups of workpiece clamping assembly (7) one to one;Further include jacking assembly (4) installed on support mounting plate (5), for jacking movement to lifting transmission assembly (8) above it;Workpiece clamping assembly (7) includes the clamping lifting seat (7-2) and slide connection with it on guide seat assembly (6) threaded, workpiece support (7-5) is installed on clamping lifting seat (7-2), access connection mechanism (7-6) is rotatably connected on clamping lifting seat (7-2), rotating joint (7-1) is connected on the lower end of access connection mechanism (7-6), upper end is connected with pneumatic gripper (7-4) and is threaded workpiece support (7-5), further include the clamping rotating mechanism (7-3) for driving access connection mechanism (7-6) rotation.

2. The multi-station valve shop turntable apparatus of claim 1, wherein: Multiple groups of through holes are opened on installation turntable (1) and are evenly distributed along the circumference, and positioning drill bushing (9) is installed in each through hole, further include positioning pin assembly (10) installed on support mounting plate (5), positioning pin assembly (10) can be inserted with the positioning drill bushing (9) inserted into the cooperation above it.

3. The multi-station valve machining turntable apparatus of claim 1, wherein: Jacking assembly (4) includes two groups of jacking guide rods (4-3) and slide connection with support mounting plate (5) by linear bearing, two groups of jacking guide rods (4-3) are longitudinally arranged and are installed with installation connecting plate (4-1) on lower end, further include jacking cylinder (4-2) installed on support mounting plate (5), the extension end of jacking cylinder (4-2) is connected with installation connecting plate (4-1).

4. The multi-station valve machining turntable apparatus of claim 3, wherein: Lifting transmission assembly (8) includes two groups of push connecting rods (8-1) and slide connection with installation turntable (1) by linear bearing and longitudinally arranged, two groups of push connecting rods (8-1) are coaxially arranged with two groups of jacking guide rods (4-3) respectively;Transmission lifting seat (8-4) is installed on the upper end of two groups of push connecting rods (8-1), and transmission lifting seat (8-4) is connected with clamping lifting seat (7-2) by connecting rod;Spring top plate (8-2) is installed on the lower end of each push connecting rod (8-1), and reset spring (8-3) is threaded on each push connecting rod (8-1) and is located between corresponding spring top plate (8-2) and linear bearing.

5. The multi-station valve machining turntable apparatus of claim 1, wherein: The passage connecting mechanism (7-6) comprises a passage rotating shaft (7-6-2) coaxially connected at the lower end of the pneumatic clamping jaw (7-4) and rotatably connected with the clamping lifting seat (7-2), the rotary joint (7-1) is connected with the lower end of the passage rotating shaft (7-6-2) through a connecting rod; a threading passage (7-6-5) is formed in the center of the passage rotating shaft (7-6-2) and communicates with the upper and lower end faces thereof, and a plurality of gas passages (7-6-1) are distributed around the threading passage (7-6-5), the upper and lower ports of each gas passage (7-6-1) respectively communicate with the upper end outer peripheral wall and the lower end face of the passage rotating shaft (7-6-2), and a gas nozzle is installed at each of the upper and lower ports of each gas passage (7-6-1).

6. The multi-station valve shop turntable apparatus as described in claim 1, further comprising: The clamping rotating mechanism (7-3) comprises a workpiece rotating motor (7-3-2) installed on the clamping lifting seat (7-2), and a transmission belt wheel pair (7-3-1) is installed between the output shaft of the workpiece rotating motor (7-3-2) and the passage connecting mechanism (7-6).

7. The multi-station valve machining turntable apparatus of claim 1, wherein: The rolling support assembly (2) comprises a lower support (2-1) installed on the support mounting plate (5), a plurality of groups of strip-shaped holes extending longitudinally are formed in the lower support (2-1), bolts are threaded in the strip-shaped holes, and an adjustable upper support (2-2) is installed through the bolts, a support roller (2-3) is rotatably connected to the upper end of the adjustable upper support (2-2), and the outer peripheral wall of the support roller (2-3) is rotatably connected with the mounting turntable (1).

Images