Valve clamping tool with automatic correction function

Abstract

The invention relates to the field of clamping tools, and particularly discloses an automatic correction valve clamping tool which comprises two symmetrically-arranged clamping units, each clamping unit comprises a base, a mounting groove is formed in one side face of each base, two symmetrical L-shaped hinge blocks are arranged in each mounting groove, and the middles of the L-shaped hinge blocks are movably connected with the bottom of each mounting groove through pin shafts; a supporting base and a clamping block are arranged on the inner sides of the two ends of the L-shaped hinge block respectively, a spring plunger is installed on the base and abuts against one end of the L-shaped hinge block, and a limiting block is arranged on the portion, located on the inner side of the L-shaped hinge block, of the base. The flange on the valve is clamped and fixed through the supporting block and the clamping block at the two ends of the L-shaped hinge block, the purpose of automatically adjusting, clamping and centering the valve is achieved through automatic adjustment of the stroke of the spring plunger, clamping is rapid, leveling and alignment are completed at the same time, operation is convenient, labor intensity is relieved, production efficiency and valve machining quality are improved, and the production cost is reduced. And large-batch machining and production of the valve are facilitated.

Description

Technical Field

[0001] The invention relates to the field of clamping tools, in particular to an automatic correction valve clamping tool. Background Art

[0002] When the existing valve is processed, when the manipulator sends the parts to the chuck, the outer diameter of the two ends of the valve is fixed with a "V" block, and then the chuck is manually rotated, and the set pointer is used to adjust the loose and tight clamping claws to calibrate the inner diameter of the middle flange; then the chuck is manually rotated to level the end face of the middle flange. Its disadvantage is that when the valve parts are produced, the outer diameters of the two ends of the valve are set with risers. When the risers are removed, the outer diameters of the two ends of the valve parts are not concentric. Only the "V" groove is used to fix the outer diameters of the two ends of the valve for clamping, and the valve moves, resulting in eccentricity and unevenness of the valve. Therefore, every time a valve is replaced for processing and clamping, the loose and tight clamping claws must be manually adjusted. For the rounding and leveling of the processed valve, the manual operation error is large, which will affect the accuracy of the valve processing and cannot guarantee the quality of the valve processing; and the long-term cycle operation has low production efficiency, which is not conducive to the quality of the product and is not suitable for mass production. To this end, the present application proposes an automatic correction valve clamping tool to solve the above problems. Summary of the invention

[0003] In view of the existing problems, the present invention provides an automatic correction valve clamping tool, which can effectively solve the problems raised in the background technology.

[0004] To solve the above problems, the present invention adopts the following technical solutions:

[0005] A valve clamping tool for automatic correction, comprising two groups of symmetrically arranged clamping units, wherein the clamping unit comprises a base, a side surface of the base is provided with a mounting groove, two symmetrical L-shaped hinge blocks are provided in the mounting groove, the middle part of the L-shaped hinge block is movably connected to the bottom of the mounting groove by a pin shaft, a support seat and a clamping block are respectively provided on the inner sides of both ends of the L-shaped hinge block, a spring plunger is installed on the base, the spring plunger abuts against one end of the L-shaped hinge block, and the base is provided with a limit block on the inner side of the L-shaped hinge block.

[0006] As a further solution of the present invention: the side surface of the base is flush with the outer surface of the L-shaped hinge block.

[0007] As a further solution of the present invention: a baffle is installed on the side surface of the base, and the baffle is in contact with the L-shaped hinge block.

[0008] As a further solution of the present invention: the structure of the support seat is a hollow hexagonal shell and the end surface of the hollow hexagonal shell is a tooth surface structure.

[0009] As a further solution of the present invention: the end faces of the base are located on both sides of the limit block and V-shaped blocks with V-shaped grooves on the end faces are fixed thereto.

[0010] As a further solution of the present invention: a steel ball connected to a spring is provided at the end of the spring plunger, and the steel ball abuts against the L-shaped hinge block.

[0011] As a further solution of the present invention: the spring plungers on the two clamping units are arranged opposite to each other and the support seat is arranged on the opposite side surface of the L-shaped hinge block that is in contact with the spring plunger.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention limits the flange on the valve by abutting the limit block, the support seats on the two clamping units clamp the two side surfaces of the flange on the valve, the stroke of the spring plunger is shortened, the L-shaped hinge block rotates around the pin shaft, the clamping block at the other end of the L-shaped hinge block clamps the other two side surfaces of the flange on the valve, the flange on the valve is clamped and fixed by the support blocks and clamping blocks at both ends of the L-shaped hinge block, the automatic adjustment of the spring plunger stroke is utilized to achieve the purpose of automatically adjusting the clamping and centering of the valve, the clamping is fast and the leveling and alignment are completed at the same time, the operation is convenient, the labor intensity is reduced, the production efficiency and valve processing quality are improved, and the mass processing and production of valves are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of the overall structure of an automatic correction valve clamping tool;

[0014] Figure 2 It is a schematic diagram of the overall structure of an automatic correction valve clamping tool;

[0015] Figure 3 The figure is a schematic diagram of a valve clamping tool for automatically correcting a valve.

[0016] In the figure: 1. base; 2. mounting groove; 3. L-shaped hinge block; 4. pin shaft; 5. support seat; 6. clamping block; 7. spring plunger; 8. limit block; 9. baffle; 10. V-shaped block; 11. steel ball; 12. valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Combination Figures 1 to 3To explain this embodiment, this embodiment provides an automatic correction valve clamping tool, which includes two groups of symmetrically arranged clamping units, the clamping units are installed on a chuck, the clamping units include a base 1, a side surface of the base 1 is provided with a mounting groove 2, two symmetrical L-shaped hinge blocks 3 are provided in the mounting groove 2, the middle part of the L-shaped hinge block 3 is movably connected to the bottom of the mounting groove 2 by a pin shaft 4, and a support seat 5 and a clamping block 6 are respectively provided on the inner sides of both ends of the L-shaped hinge block 3, a spring plunger 7 is installed on the base 1, the spring plunger 7 is abutted against one end of the L-shaped hinge block 3, and the base 1 is located on the inner side of the L-shaped hinge block 3 and a limit block 8 is provided.

[0019] The side surface of the base 1 is flush with the outer surface of the L-shaped hinge block 3 . A baffle 9 is installed on the side surface of the base 1 . The baffle 9 fits the L-shaped hinge block 3 . The baffle 9 is used to block and limit the L-shaped hinge block 3 .

[0020] The structure of the support seat 5 is a hollow hexagonal shell and the end face of the hollow hexagonal shell is a tooth surface structure. The support seat 5 is set as a hollow structure to facilitate fixing the support seat 5 on the L-shaped hinge block 3 by screws, and the tooth surface structure improves the clamping stability.

[0021] The end faces of the base 1 are located on both sides of the limit block 8 and are fixed with V-shaped blocks 10 with V-shaped grooves on the end faces. The V-shaped grooves on the V-shaped blocks 10 match the outer diameters of the flanges at both ends of the valve 12 and assist in clamping the round flanges at both ends of the valve 12.

[0022] The end of the spring plunger 7 is provided with a spring-connected steel ball 11, which abuts against the L-shaped hinge block 3. The steel ball 11 can be adjusted for lift and retraction under the action of the spring. The spring plungers 7 on the two clamping units are arranged opposite to each other and the support seat 5 is arranged on the opposite side surface of the L-shaped hinge block 3 that fits the spring plunger 7.

[0023] The working principle of the present invention is: two clamping units are symmetrically fixed on the claws of the lathe chuck, the manipulator fixes the inner diameter of the center hole of the valve 12, and the valve 12 is sent to the center position of the chuck. The back of the flange of the valve 12 is close to the limit block 8, and then the two parts of the tooling are clamped toward the center. While clamping, the four support seats 5 are tightly clamped on the upper and lower surfaces of the flange of the valve 12. At this time, the stroke of the standard spring plunger 7 is shortened, and the L-shaped hinged block rotates with the pin 4 as the axis, so that the clamping block 6 on the L-shaped hinged block synchronously clamps the other two side surfaces of the flange of the valve 12, and the V-shaped blocks 10 on both sides simultaneously assist in clamping the round flanges at both ends of the valve 12. This tooling is fast in clamping, and leveling and alignment are completed at the same time. It is easy to operate, reduces labor intensity, and improves production efficiency and processing quality, which is convenient for mass processing and production of valves 12.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. 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 terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic calibration valve clamping tool, characterized in that: The invention comprises two groups of symmetrically arranged clamping units, wherein the clamping unit comprises a base, a side surface of the base is provided with a mounting groove, two symmetrical L-shaped hinge blocks are provided in the mounting groove, the middle part of the L-shaped hinge block is movably connected to the bottom of the mounting groove by a pin shaft, a supporting seat and a clamping block are respectively provided on the inner sides of both ends of the L-shaped hinge block, a spring plunger is installed on the base, the spring plunger abuts against one end of the L-shaped hinge block, and the base is provided with a limit block on the inner side of the L-shaped hinge block.

2. The automatic calibration valve clamping tool according to claim 1, characterized in that: The side surface of the base is flush with the outer surface of the L-shaped hinge block.

3. The automatic calibration valve clamping tool according to claim 2, characterized in that: A baffle is installed on the side surface of the base, and the baffle is fitted with the L-shaped hinge block.

4. The automatic calibration valve clamping tool according to claim 1, characterized in that: The structure of the support seat is a hollow hexagonal shell, and the end surface of the hollow hexagonal shell is a tooth surface structure.

5. The automatic calibration valve clamping tool according to claim 1, characterized in that: The end surfaces of the base are located at both sides of the limiting block, and V-shaped blocks with V-shaped grooves on the end surfaces are fixed thereto.

6. The automatic calibration valve clamping tool according to claim 1, characterized in that: A spring-connected steel ball is disposed at the end of the spring plunger, and the steel ball abuts against the L-shaped hinge block.

7. The automatic calibration valve clamping tool according to claim 1, characterized in that: The spring plungers on the two clamping units are arranged opposite to each other and the support seats are arranged on the opposite side surfaces of the L-shaped hinge block that are in contact with the spring plungers.

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