Gas valve holder screwing apparatus

Abstract

The application provides a gas valve fixing frame screwing equipment, which comprises a machine frame, a rotating disc driven by a first motor is arranged on the machine frame in a rotating mode, positioning blocks are uniformly arranged on the rotating disc along the axis of the rotating disc, a positioning groove for positioning the fixing frame is arranged on the upper end of the positioning block, a material track, a feeding mechanism and two assembly modules corresponding to two screw holes of the fixing frame are arranged on the machine frame, the feeding mechanism is used for feeding the fixing frames on the material track to the positioning blocks in sequence, the assembly module comprises a stable plate arranged horizontally above the machine frame, and a stand and a screwing mechanism are arranged on the stable plate. The application has the advantages that after the fixing frame is pressed and the screw assembly is fed, the screwing assembly and the screw feeding assembly are automatically moved to the fixing frame to make the screw enter the screw hole, the screw is screwed into the screw hole after being pressed down and is separated from the screw feeding assembly, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas valve fixing frame, and particularly relates to a screwing equipment for a gas valve fixing frame. BACKGROUND

[0002] The gas valve is a new type of safety matching device for gas pipeline engineering. It is used for cutting off, connecting and adjusting the gas in the pipeline, and has good control characteristics and sealing performance. The fixing frame needs to be installed on the valve seat of the gas valve. The bottom of the fixing frame is inwardly bent on both sides to form an installation part. Screw holes are formed in the installation part. Due to the structure of the fixing frame, the current automatic screwing machine is blocked by the fixing frame. The worker needs to hold the fixing frame and the screw, and then vertically inserts the screw into the fixing frame and aligns it with the screw hole. Two screws are continuously screwed into the screw hole. Then, the screw is rotated by the screwdriver of the electric screwdriver through the upper perforation, so as to install the fixing frame on the valve seat. Manually screwing two screws into two screw holes will waste a lot of time and is low in efficiency. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a screwing equipment for a gas valve fixing frame. After pressing the fixing frame and feeding the screw to the screwing assembly, the screwing assembly and the screw feeding assembly are automatically moved to the bottom of the fixing frame, the screw is put into the screw hole, and the screw is screwed into the screw hole after being pressed down and separated from the screw feeding assembly, thereby improving the efficiency.

[0004] The present application provides a screwing equipment for a gas valve fixing frame, which comprises a machine frame 1, a rotating disc 2 driven by a first motor 3 is arranged on the machine frame 1 in a rotating manner, positioning blocks 4 are uniformly distributed along the axis of the rotating disc 2, a positioning groove for positioning the fixing frame is formed in the upper end of the positioning block 4, a material track 5, a feeding mechanism 6 and two assembly modules corresponding to the two screw holes of the fixing frame are arranged on the machine frame 1, the feeding mechanism 6 is used for feeding the fixing frames on the material track 5 to the positioning blocks 4 in sequence, the assembly module comprises a stable plate 7 arranged horizontally above the machine frame 1, a stand column 8 and a screwing mechanism 12 are arranged on the stable plate 7, a clamping nozzle 10, a second air cylinder 11 and a first air cylinder 9 for pressing the fixing frame are arranged on the stand column 8, the screwing mechanism 12 comprises a support plate arranged horizontally above the stable plate 7, a screw feeding assembly 12.3, a screw pressing assembly 12.4 and a sliding piece 12.2 driven by a third air cylinder 12.1 are slidably arranged on the support plate, when the sliding piece 12.2 moves towards the fixing frame, the sliding piece 12.2 simultaneously drives the screw feeding assembly 12.3 and the screw pressing assembly 12.4 to move to the bottom of the fixing frame, the sliding piece 12.2 further drives the screw feeding assembly 12.3 to put the screw into the screw hole of the fixing frame, and the sliding piece 12.2 further presses the screw through the screw pressing assembly 12.4, so that the screw is separated from the screw feeding assembly 12.3.

[0005] Further, the feeding mechanism 6 comprises a pushing assembly 6.1 and a clamping assembly 6.2, the pushing assembly 6.1 comprises a chute 6.1.1 connected with the material track 5, a pushing block 6.1.2 driven by a pushing cylinder 6.1.3 is transversely slidably arranged on the chute 6.1.1, and the pushing block 6.1.2 is used to push the fixed frame to the bottom and block the subsequent fixed frame.

[0006] Further, the clamping assembly 6.2 comprises left and right slidingly arranged and driven by a transverse moving cylinder 6.2.1, a transverse moving block 6.2.2, the transverse moving block 6.2.2 is arranged on the top and bottom by a lifting cylinder 6.2.3, a lifting block 6.2.4 driven by the lifting cylinder 6.2.3, the lifting block 6.2.4 is provided with a first clamping jaw cylinder 6.2.5, a second motor 6.2.6, the output shaft of the second motor 6.2.6 is provided with a second clamping jaw cylinder 6.2.7 located on the right side of the first clamping jaw cylinder 6.2.5, and the right side of the chute 6.1.1 is provided with a transition block for positioning the fixed frame.

[0007] Further, the sliding tracks of the sliding member 12.2, the screw feeding assembly 12.3 and the screw pressing assembly 12.4 intersect at the axis of the corresponding screw hole of the fixed frame, and the sliding track of the sliding member 12.2 is located in the middle of the sliding tracks of the screw feeding assembly 12.3 and the screw pressing assembly 12.4.

[0008] Further, the sliding member 12.2 is composed of the horizontal blocks 12.2.1 on the top and bottom connected by the connecting block, the bottom of the connecting block is provided with a sliding groove 12.2.2 slidably arranged on the support plate, two symmetrical guide grooves 12.2.3 are respectively arranged on the two horizontal blocks 12.2.1, the guide grooves 12.2.3 are composed of the extension section and the parallel section, the parallel section is parallel to the sliding direction of the sliding groove 12.2.2, and the bottom of the two parallel sections is respectively provided with a first inclined block 12.2.4 and a second inclined block 12.2.5.

[0009] Further, the screw feeding assembly 12.3 comprises a first elastic telescopic column 12.3.6 slidably arranged on the support plate, the first elastic telescopic column 12.3.6 is provided with a support block 12.3.1, the support block 12.3.1 is vertically provided with a first sliding column 12.3.2 slidably arranged on the guide groove 12.2.3, the first sliding column 12.3.2 is provided with a first resisting ring 12.3.3 resisting the horizontal block 12.2.1 on the top, and the support block 12.3.1 is elastically slidably provided with a first supporting block 12.3.4 and a second supporting block 12.3.5 for supporting the screw.

[0010] Further, the first resisting ring 12.3.3 is provided with a first inclined surface corresponding to the first inclined block 12.2.4.

[0011] Further, the first frame block 12.3.4 is concave, the second frame block 12.3.5 is L-shaped, and frame holes are formed in the first frame block 12.3.4 and the second frame block 12.3.5, which are composed of upper and lower large hole sections and small hole sections connected by a middle arc section.

[0012] Further, the support block 12.3.1 is composed of a bottom flat support section and an upper connecting section, and the first frame block 12.3.4 and the second frame block 12.3.5 are horizontally attached to the flat support section and elastically and slidably fitted to the connecting section.

[0013] Further, the screw pressing assembly 12.4 includes a second elastic telescopic column 12.4.5 slidably fitted to the support plate, a long block 12.4.1 provided on the second elastic telescopic column 12.4.5, a second sliding column 12.4.2 vertically provided on the long block 12.4.1 and slidably fitted to the guide groove 12.2.3, a second abutting ring 12.4.3 provided on the second sliding column 12.4.2 and abutting against the upper horizontal block 12.2.1, a second inclined surface formed in the second abutting ring 12.4.3 and corresponding to the second inclined block 12.2.5, and a pressing column 12.4.4 vertically provided at the bottom of the long block 12.4.1 and used for pressing a screw.

[0014] The advantages of the present application are that after the fixed frame is pressed and the screw is fed to the screw assembly, the screw is automatically put into the screw hole, the screw is put into the screw hole and separated from the screw feeding assembly after the screw is pressed down, the efficiency is improved; the first cylinder presses down the fixed frame, so that the fixed frame is positioned, the screw enters between the two clamping pieces of the clamp nozzle, the piston rod of the second cylinder presses down the screw, the screw spreads the clamping pieces and enters the frame hole of the screw mounting mechanism; the last side fixed frame on the material rail pushes the fixed frame into the slide, the push block driven by the push cylinder pushes the fixed frame against the side wall of the slide, the fixed frame pushed to the bottom is clamped to the positioning block through the transition block by the horizontal moving cylinder, the lifting cylinder, the second motor and the two clamping jaw cylinders; the two horizontal blocks abut against the abutting rings on the two sides, and the two slide columns are respectively slidably arranged in the guide grooves on the two sides; the outer extension section of the guide groove drives the screw feeding assembly to slide to the bottom of the fixed frame through the first slide column, the screw feeding assembly no longer slides after the first slide column enters the parallel section of the guide groove, the first inclined block drives the first abutting ring, the frame block and the supporting block to descend through the first inclined surface of the first abutting ring, so that the screw vertically enters the screw hole; the screw rod of the screw enters the small hole section, so that the screw remains vertical, and the head of the screw enters the arc section and the large hole section; the outer extension section of the guide groove drives the screw pressing assembly to slide to the bottom of the fixed frame through the second slide column, the screw pressing assembly no longer slides after the second slide column enters the parallel section of the guide groove, the second inclined block drives the second abutting ring, the long block and the pressing column to descend through the second inclined surface of the second abutting ring, the pressing column presses the screw, and the head of the screw presses the arc section of the frame hole to spread the frame blocks, so that the two frame blocks move away from each other, and the screw vertically enters the screw hole after separating from the frame hole of the frame block. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the present application;

[0016] Figure 2 is a structural schematic view of the present application;

[0017] Figure 3 is a front view of the present application;

[0018] Figure 4 is a top view of the present application;

[0019] Figure 5 is a partial structural schematic view of the present application;

[0020] Figure 6 is a partial top view of the present application when the screw feeding assembly and the screw pressing assembly move to the bottom of the fixed frame;

[0021] Figure 7 is a partial top view of the present application when the pressing column presses the screw to descend to spread the two frame blocks;

[0022] Figure 8 is a partial top view of the present application when the pressing column descends to the bottom and the screw is separated from the frame block to be put into the screw hole;

[0023] Figure 9 is an enlarged view of A part of Figure 1

[0024] Figure 10 is an enlarged view of B part of Figure 1

[0025] Figure 11 is an enlarged view of C part of Figure 3

[0026] Figure 12 is a structural schematic view of the sliding member of the present application;

[0027] Figure 13 is a structural schematic view of the first frame block and the second frame block of the present application. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below with reference to the drawings.

[0029] Referring to Figures 1 to 13 ​​​The application provides a gas valve fixing frame screwing equipment, which comprises a machine frame 1, a rotating disc 2 driven by a first motor 3 is arranged on the machine frame 1 in a rotating mode, the input shaft of a speed reducer is in transmission connection with the output shaft of the first motor, the center of the rotating disc is installed on the output shaft of the speed reducer, positioning blocks 4 are uniformly distributed on the rotating disc 2 along the axial line of the rotating disc 2, the upper end of the positioning block 4 is provided with a positioning groove for positioning the fixing frame, a material track 5, a feeding mechanism 6, two assembly modules corresponding to two screw holes of the fixing frame are arranged on the machine frame 1, the material track is connected with a fixed clamp vibrating disc, the fixed clamp vibrating disc continuously feeds the material track, the feeding mechanism 6 is used for feeding the fixing frame on the material track 5 to the positioning blocks 4 in sequence, the feeding mechanism 6 comprises a material pushing assembly 6.1 and a material clamping assembly 6.2, the material pushing assembly 6.1 comprises a slide 6.1.1 connected with the material track 5, a pushing block 6.1.2 driven by a pushing cylinder 6.1.3 is transversely and slidably arranged on the slide 6.1.1, the pushing block 6.1.2 is used for pushing the fixing frame to the bottom and stopping the subsequent fixing frame, the fixing frame on the material track pushes the last side fixing frame into the slide, the pushing cylinder drives the pushing block to push the fixing frame against the side wall of the slide, then the pushing-to-bottom fixing frame is clamped to the positioning groove of the positioning block by the material clamping assembly, the assembly module comprises a stable plate 7 arranged horizontally above the machine frame 1, a stand column 8 and a screwing mechanism 12 are arranged on the stable plate 7, a clamping nozzle 10, a second cylinder 11 and a first cylinder 9 for pressing the fixing frame are arranged on the stand column 8, the second cylinder feeds the screw assembly through the clamping nozzle, the clamping nozzle is a screw machine clamping nozzle, an inclined pipe on one side of the clamping nozzle is connected with a screw vibrating disc, the screw enters between the two clamping pieces of the clamping nozzle, the piston rod of the second cylinder presses the screw, the screw separates the clamping pieces and enters the frame hole of the screwing mechanism, the screwing mechanism 12 comprises a support plate arranged horizontally above the stable plate 7, a screw feeding assembly 12.3, a screw pressing assembly 12.4 and a sliding piece 12.2 driven by a third cylinder 12.1 are slidably arranged on the support plate, when the sliding piece 12.2 moves to the fixing frame, the sliding piece 12.2 simultaneously drives the screw feeding assembly 12.3 and the screw pressing assembly 12.4 to move to the bottom of the fixing frame, then the sliding piece 12.2 drives the screw feeding assembly 12.3 to put the screw into the screw hole of the fixing frame, and then the sliding piece 12.2 drives the screw to separate from the screw feeding assembly 12.3 through the screw pressing assembly 12.4.The positioning block is positioned in the fixed frame, and the fixed frame is transferred to two assembly modules. The first cylinder presses down the fixed frame, thereby positioning the fixed frame. The second cylinder screws the screw assembly through the clamping mouth. The third cylinder drives the sliding member to move towards the fixed frame. The sliding member simultaneously drives the screw feeding assembly and the screw pressing assembly to move towards the fixed frame to the bottom. The pressing column of the screw pressing assembly, the screw of the screw feeding assembly and the screw hole of the fixed frame are vertically overlapped. The sliding member vertically lowers the screw through the screw feeding assembly. The screw is vertically placed in the screw hole of the fixed frame. The sliding member presses the screw through the screw pressing assembly, so that the screw is separated from the screw feeding assembly and is placed in the screw hole of the fixed frame. Then the third cylinder drives the sliding member to move reversely to reset. The sliding member drives the screw feeding assembly and the screw pressing assembly to reset. The two assembly modules screw the screws into the two screw holes of the fixed frame.

[0030] The material clamping assembly 6.2 includes left and right sliding fittings and is driven by a horizontal moving cylinder 6.2.1 and a horizontal moving block 6.2.2. The horizontal moving block 6.2.2 is vertically fitted with a lifting block 6.2.4 driven by a lifting cylinder 6.2.3. The lifting block 6.2.4 is provided with a first clamping jaw cylinder 6.2.5 and a second motor 6.2.6. The output shaft of the second motor 6.2.6 is provided with a second clamping jaw cylinder 6.2.7 located at the right side of the first clamping jaw cylinder 6.2.5. The right side of the sliding way 6.1.1 is provided with a transition block for positioning the fixed frame. The fixed frame pushed to the bottom in the sliding way is located below the first clamping jaw cylinder. The fixed frame positioned on the transition block is located below the second clamping jaw cylinder. The lifting cylinder drives the two clamping jaw cylinders to descend. The two clamping jaw cylinders clamp the two fixed frames respectively. The lifting cylinder drives the two clamping jaw cylinders to ascend to reset. The horizontal moving cylinder drives the lifting cylinder and the two clamping jaw cylinders to horizontally move. The first clamping jaw cylinder and the second clamping jaw cylinder are located above the transition block and the positioning block respectively. The lifting cylinder drives the two clamping jaw cylinders to descend and the clamping jaw cylinders to release the fixed frame, so that the fixed frame is placed on the transition block and the positioning block respectively and is positioned. In the process of clamping the fixed frame to the positioning block by the second clamping jaw cylinder, a detection device on the second motor detects the positions of the two screw holes of the fixed frame. If the positions of the two screw holes of the fixed frame are different, the second motor drives the second clamping jaw cylinder and the fixed frame clamped by the second clamping jaw cylinder to rotate by 180 degrees, so that the positions of the screw holes are correct. Then the lifting cylinder and the horizontal moving cylinder drive the two clamping jaw cylinders to reset.

[0031] The sliding trajectories of the sliding member 12.2, the screw feeding assembly 12.3 and the screw pressing assembly 12.4 intersect the axis of the corresponding screw hole of the fixed frame. The sliding trajectory of the sliding member 12.2 is located in the middle of the sliding trajectories of the screw feeding assembly 12.3 and the screw pressing assembly 12.4.

[0032] Referring to Figure 5 , Figure 12The sliding part 12.2 is composed of the upper and lower horizontal blocks 12.2.1 connected by the middle connecting block, the bottom of the connecting block is provided with the sliding groove 12.2.2 matched with the support plate, the two horizontal blocks 12.2.1 are respectively provided with two symmetrically arranged guide grooves 12.2.3, the guide groove 12.2.3 is composed of the extension section and the parallel section, the parallel section is parallel to the sliding direction of the sliding groove 12.2.2, the bottom of the two parallel sections is respectively provided with the first inclined block 12.2.4 and the second inclined block 12.2.5. The piston rod of the third cylinder is connected to the connecting block, the support plate is provided with the first guide rail matched with the sliding groove, the two horizontal blocks abut against the two side abutting rings, the two side sliding columns are respectively matched with the two side guide grooves, the first inclined block drives the first abutting ring, the frame block and the support block to descend through the first inclined surface of the first abutting ring, so that the screw vertically enters the screw hole, the second inclined block drives the second abutting ring, the long block and the pressing column to descend through the second inclined surface of the second abutting ring, the pressing column presses the screw, and the screw is separated from the screw assembly to be loaded into the screw hole.

[0033] The screw loading assembly 12.3 includes the first elastic telescopic column 12.3.6 matched with the support plate, the support block 12.3.1 provided on the first elastic telescopic column 12.3.6, the first sliding column 12.3.2 provided on the support block 12.3.1 and matched with the guide groove 12.2.3, the first abutting ring 12.3.3 provided on the first sliding column 12.3.2 and abutting against the lower horizontal block 12.2.1, and the first frame block 12.3.4 and the second frame block 12.3.5 elastically matched with the support block 12.3.1 and used for supporting the screw. The support block is provided with the guide rod matched with the two frame blocks, the guide rod is provided with the spring connected with the support block and the frame block, the end of the guide rod is provided with the limiting column abutting against the frame block, the support plate is provided with the second guide rail matched with the first elastic telescopic column, the screw loading assembly moves to the fixed frame to the bottom, the frame hole is overlapped with the screw hole of the fixed frame, when the sliding part moves to the fixed frame, the extension section of the guide groove drives the screw loading assembly to slide to the fixed frame to the bottom through the first sliding column, and the first sliding column enters the parallel section of the guide groove, so that the screw loading assembly no longer slides.

[0034] The first abutting ring 12.3.3 is provided with the first inclined surface corresponding to the first inclined block 12.2.4. When the first sliding column enters the parallel section of the guide groove, the first inclined block drives the first abutting ring, the frame block and the support block to descend through the first inclined surface of the first abutting ring, the screw descends with the frame block under the action of gravity, so that the screw vertically enters the screw hole, then the sliding part moves reversely to reset, and the first abutting ring, the frame block and the support block ascend to reset under the action of the elastic force of the first elastic telescopic column.

[0035] Referring to Figure 10 , Figure 13The first shelf block 12.3.4 is concave, and the second shelf block 12.3.5 is L-shaped. The first shelf block 12.3.4 and the second shelf block 12.3.5 are provided with shelf holes. The shelf holes are composed of an arc-shaped section in the middle and large hole sections and small hole sections on the upper side and the lower side. The bottom of the first shelf block and the second shelf block is vertically provided with a support bar. The screw rod of the screw enters the small hole section, so that the screw is kept vertical. The head of the screw enters the arc-shaped section and the large hole section. The compression bolt assembly presses down the screw. The head of the screw presses down the arc-shaped section of the shelf hole to support the two shelf blocks to move away from each other. The support bar is in abutment with the positioning block to form a support. After the screw is separated from the shelf hole of the shelf block, the screw vertically enters the screw hole. The two shelf blocks are reset under the action of the elastic force.

[0036] The support block 12.3.1 is composed of a flat support part at the bottom and a connecting part on the upper side. The first shelf block 12.3.4 and the second shelf block 12.3.5 are horizontally attached to the flat support part and are elastically and slidingly fitted to the connecting part.

[0037] The compression screw assembly 12.4 includes a second elastic telescopic column 12.4.5 slidingly fitted to the support plate. The second elastic telescopic column 12.4.5 is provided with a long block 12.4.1. The long block 12.4.1 is vertically provided with a second sliding column 12.4.2 slidingly fitted to the guide groove 12.2.3. The second sliding column 12.4.2 is provided with a second abutting ring 12.4.3 abutting against the upper horizontal block 12.2.1. The bottom of the long block 12.4.1 is vertically provided with a compression column 12.4.4 for pressing down the screw. The support plate is provided with a third guide rail for slidingly fitting the second elastic telescopic column. The compression screw assembly moves to the bottom of the fixed shelf. The compression column, the shelf hole, and the fixed shelf correspond to the screw hole and are vertically overlapped. When the sliding member moves to the fixed shelf, the outer extension section of the guide groove drives the compression screw assembly to slide to the bottom of the fixed shelf through the second sliding column. After the second sliding column enters the parallel section of the guide groove, the compression bolt assembly no longer slides.

[0038] The second abutting ring 12.4.3 is provided with a second inclined surface corresponding to the second inclined block 12.2.5. When the second sliding column enters the parallel section of the guide groove, the second inclined block drives the second abutting ring, the long block, and the compression column to descend through the second inclined surface of the second abutting ring. The compression column presses down the screw. The head of the screw presses down the arc-shaped section of the shelf hole to support the two shelf blocks to move away from each other. After the screw is separated from the shelf hole of the shelf block, the screw vertically enters the screw hole. The diameter of the compression column is smaller than the diameter of the shelf hole. Then, the sliding member is reversely moved to reset. The second abutting ring, the long block, and the compression column are raised and reset under the action of the elastic force of the second elastic telescopic column.

[0039] The specific work flow of the present application is as follows: the fixed frame on the material track pushes the last side fixed frame into the slide, the pushing cylinder drives the pushing block to push the fixed frame against the side wall of the slide, the lifting cylinder drives the two clamping jaw cylinders to descend, the two clamping jaw cylinders clamp the two fixed frames respectively, the lifting cylinder drives the two clamping jaw cylinders to ascend and reset, the transverse moving cylinder drives the lifting cylinder and the two clamping jaw cylinders to move transversely, the first clamping jaw cylinder and the second clamping jaw cylinder are located above the transition block and the positioning block respectively, the lifting cylinder drives the two clamping jaw cylinders to descend and the clamping jaw cylinders to release the fixed frames, so that the fixed frames are positioned on the transition block and the positioning block respectively, then the lifting cylinder and the transverse moving cylinder drive the two clamping jaw cylinders to reset, the first motor drives the rotating disc to rotate, so that the fixed frame of the positioning block rotates and faces the assembly module, the first cylinder presses the fixed frame downward, thereby positioning the fixed frame, the second cylinder makes the screw vertically enter the frame hole of the frame block through the clamping nozzle, the third cylinder drives the sliding member to move towards the fixed frame, the outer extension section of the guide groove drives the screw feeding assembly to slide towards the fixed frame to the bottom through the first slide post, at the same time, the second slide post drives the screw pressing assembly to slide towards the fixed frame to the bottom, after the two slide posts enter the parallel section of the guide groove, the screw pressing assembly and the screw feeding assembly no longer slide, as shown in Figure 6 the first inclined block drives the first abutting ring, the frame block and the supporting block to descend through the first inclined surface of the first abutting ring, the screw descends with the frame block under the action of gravity, so that the screw vertically enters the screw hole, at the same time, the second inclined block drives the second abutting ring, the long block and the pressing column to descend through the second inclined surface of the second abutting ring, the pressing column presses the screw, the head of the screw presses the arc-shaped section of the frame hole, so that the two frame blocks move away from each other, as shown in Figure 7 after the screw is separated from the frame hole of the frame block, the screw vertically enters the screw hole, the two frame blocks reset under the action of the elastic force, as shown in Figure 8 then the sliding member moves reversely to reset, the first abutting ring, the frame block and the supporting block ascend and reset under the action of the elastic force of the first elastic expansion column, the second abutting ring, the long block and the pressing column ascend and reset under the action of the elastic force of the second elastic expansion column, then the slide post enters the outer extension section, the guide groove drives the screw feeding assembly and the screw pressing assembly to move reversely to reset through the slide post, the two assembly modules respectively feed the screw into the two screw holes of the fixed frame, the rotating disc continues to rotate by 90 degrees, the fixed frame with the screw is rotated to the rear side of the rotating disc, the staff can directly take down the fixed frame, or another unloading mechanism is additionally installed to unload the fixed frame onto the conveying belt, so as to subsequently install the fixed frame to the valve seat.

[0040] The above only describes the preferred embodiments of the present application, it should be noted that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A screw mounting device for a gas valve fixing bracket, characterized in that: The system includes a frame on which a turntable driven by a first motor is rotatably mounted. Positioning blocks are evenly distributed along the axis of the turntable, and each positioning block has a positioning groove at its upper end for positioning a fixing bracket. The frame includes a material rail, a feeding mechanism, and two assembly modules corresponding to the two screw holes of the fixing bracket. The feeding mechanism sequentially feeds the fixing brackets from the material rail onto the positioning blocks. Each assembly module includes a stabilizing plate horizontally positioned above the frame, a column, and a screw-installing mechanism. The column has a clamp, a second cylinder, and a first cylinder for pressing down the fixing bracket. The screw-installing mechanism includes a support plate horizontally positioned above the stabilizing plate, on which a screw-in assembly and a screw-pressing assembly are slidably mounted. A sliding member driven by a third cylinder moves toward a fixed frame. Simultaneously, the sliding member drives the screw-in assembly and the screw-pressing assembly to move to the bottom of the fixed frame. The sliding member then drives the screw-in assembly to insert the screw into the screw hole of the fixed frame. The sliding member then presses down on the screw through the screw-pressing assembly, causing the screw to disengage from the screw-in assembly. The sliding member consists of a central connecting block connecting upper and lower horizontal blocks. The bottom of the connecting block has a sliding groove that slides onto the support plate. Two symmetrically arranged guide grooves are respectively formed on the two horizontal blocks. The guide grooves consist of an outer extension connecting a parallel section. The parallel section is parallel to the sliding direction of the sliding groove. The bottom of the two parallel sections is respectively provided with a first inclined block and a second inclined block.

2. The gas valve mounting bracket screw-installing device as described in claim 1, characterized in that: The feeding mechanism includes a pushing component and a clamping component. The pushing component includes a slide rail connected to the material rail. A push block driven by a pushing cylinder is laterally mounted on the slide rail. The push block is used to push the fixing frame to the bottom and block subsequent fixing frames.

3. The gas valve mounting bracket screw-installing device as described in claim 2, characterized in that: The clamping assembly includes a horizontally sliding block driven by a horizontally sliding cylinder, and a lifting block driven by a lifting cylinder is slidably arranged on the horizontally sliding block. A first gripper cylinder and a second motor are arranged on the lifting block. A second gripper cylinder located to the right of the first gripper cylinder is arranged on the output shaft of the second motor. A transition block of a positioning and fixing frame is arranged on the right side of the slide.

4. The gas valve mounting bracket screw-installing device as described in claim 1, characterized in that: The sliding trajectories of the slider, the screw insertion assembly, and the screw pressing assembly intersect the axis of the corresponding screw hole of the fixing frame, and the sliding trajectory of the slider is located in the middle of the sliding trajectories of the screw insertion assembly and the screw pressing assembly.

5. The gas valve mounting bracket screw-installing device as described in claim 1, characterized in that: The screw insertion assembly includes a first elastic telescopic column that slides on the support plate, a support block that is provided on the first elastic telescopic column, a first sliding column that slides vertically on the support block that is slidably mounted on the guide groove, a first abutting ring that abuts against the horizontal block on the upper side of the first sliding column, and a first support block and a second support block that are elastically slidably mounted on the support block for supporting the screw.

6. The gas valve mounting bracket screw-installing device as described in claim 5, characterized in that: The first abutment ring has a first inclined surface corresponding to the first inclined block.

7. The gas valve mounting bracket screw-installing device as described in claim 5, characterized in that: The first frame block is concave, and the second frame block is L-shaped. Frame holes are provided on the first frame block and the second frame block. The frame holes are composed of a central arc segment connecting large hole segments and small hole segments on the upper and lower sides.

8. The gas valve mounting bracket screw-installing device as described in claim 5, characterized in that: The support block consists of a flat support at the bottom connected to a connecting part on the upper side. The first frame block and the second frame block are horizontally attached to the flat support and elastically slidable to the connecting part.

9. The gas valve mounting bracket screw-installing device as described in claim 1, characterized in that: The screw pressing assembly includes a second elastic telescopic column that slides on the support plate. A long block is provided on the second elastic telescopic column. A second sliding column that slides on the guide groove is vertically provided on the long block. A second abutment ring that abuts against the upper side of the horizontal block is provided on the second sliding column. A second inclined surface corresponding to the second inclined block is provided on the second abutment ring. A pressing column for pressing down the screw is vertically provided at the bottom of the long block.

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