Fixing clamp for assembling steel-plastic conversion pipe fitting

Abstract

The utility model discloses a stationary fixture for assembling a steel-plastic conversion pipe fitting, which comprises a machine table, a first clamping component and a second clamping component which are used for clamping the pipe fitting are arranged on the machine table in a left-right spaced manner, the second clamping component is arranged in a left-right moving manner relative to the machine table, and an air cylinder is arranged on the second clamping component. A connecting assembly detachably connected with the first clamping assembly is installed on an air cylinder shaft of the air cylinder. The connecting assembly is configured in the mode that when the connecting assembly is connected with the air cylinder shaft and the first clamping assembly, the air cylinder shaft stretches out and draws back to drive the second clamping assembly to move left and right relative to the machine table. The air cylinder located on the second clamping assembly is connected with the first clamping assembly through the connecting assembly, so that the first clamping assembly and the second clamping assembly are connected, the acting force generated by a hydraulic cylinder during press fitting can be effectively shared through connection of the first clamping assembly and the second clamping assembly, and the situation that the air cylinder is easily opened by press fitting pressure due to single-side stress is avoided; therefore, the problems that the pipe fitting cannot be normally pressed and the pipe fitting is damaged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-plastic conversion pipe fitting assembly, in particular to a fixing fixture used for assembling steel-plastic conversion pipe fittings. Background Art

[0002] Existing technologies, such as the Chinese utility model patent document with publication number CN218051200U, disclose a steel-plastic conversion elbow joint assembly tool, including a fixed seat assembly and a movable seat assembly, both used to clamp and fix steel pipes and plastic pipes, and a crimping assembly for crimping. The fixed seat assembly is provided with a first clamp, and the movable seat assembly is provided with a second clamp that cooperates with the first clamp. The fixed seat assembly and the movable seat assembly are both installed in the crimping assembly, and the movable seat assembly can move back and forth relative to the fixed seat assembly.

[0003] Based on the above, in the prior art, a driving assembly fixed to a side seat is used to drive the movable plate to move and clamp the steel pipe. However, the technical problem is that when the driving assembly is driven by a hydraulic cylinder, the hydraulic cylinder has a high production cost, which is not conducive to cost reduction.

[0004] When the drive assembly uses an air cylinder, the plastic tube and steel tube are press-fitted using a hydraulic cylinder. The pressing force exerted by the hydraulic cylinder is much greater than the clamping force of the air cylinder. Moreover, the air cylinder is only connected to the movable plate, which is not connected to the end plate to share the force generated by the press-fitting. As a result, the movable plate used to clamp the steel tube is easily stretched apart during press-fitting, which requires further improvement. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a fixing fixture for assembling steel-plastic conversion pipe fittings.

[0006] A fixing fixture designed for assembling steel-plastic conversion pipe fittings for this purpose includes a machine platform, on which a first clamping assembly and a second clamping assembly for clamping the pipe fitting are spaced apart on the left and right sides of the machine platform. The second clamping assembly is arranged to move left and right relative to the machine platform. The second clamping assembly is provided with a cylinder, and the cylinder shaft of the cylinder is equipped with a connecting assembly that is detachably connected to the first clamping assembly.

[0007] The connecting assembly is configured such that when the connecting assembly is connected to the cylinder shaft and the first clamping assembly, the cylinder shaft can be extended and retracted to drive the second clamping assembly to move left and right relative to the machine platform.

[0008] Preferably, the connecting component includes a first connecting member, a second connecting member and a locking plug-in, the first connecting member is arranged on the cylinder shaft, the first connecting member is provided with a first slot, the second connecting member is arranged on the first clamping assembly, the second connecting member is provided with a second slot, the locking plug-in cooperates with the first connecting member and the second connecting member plug-in, and the locking plug-in is provided with a limiting rib for inserting into the first slot and the second slot.

[0009] Preferably, a handle pull ring is provided on the locking plug-in.

[0010] Preferably, the first clamping assembly includes a fixed plate fixedly arranged on the machine platform, and a wall surface of the fixed plate facing the second clamping assembly is provided with a plurality of first semicircular clamps for clamping the pipe fittings;

[0011] The second clamping assembly includes a movable plate that is movable left and right relative to the machine platform, and a wall surface of the movable plate facing the fixed plate is provided with a plurality of second semicircular clamps for clamping the pipe fittings;

[0012] The cylinder is fixedly mounted on the movable plate;

[0013] The first semicircular clamping piece and the second semicircular clamping piece enclose a circle for clamping the pipe.

[0014] Preferably, the first clamping assembly is provided with a positioning bracket that fits the pipe.

[0015] Preferably, a mounting seat is provided at the rear side of the machine, a first pressing assembly for pressing the rear end of the pipe is provided on the mounting seat, and a second pressing assembly for pressing the upper surface of the pipe is provided on the mounting seat.

[0016] Preferably, the first clamping assembly includes a fixing seat arranged on the mounting seat, the fixing seat is provided with a through hole running through the front and back, an adjusting rod is movably inserted in the through hole, a positioning plate is provided on the adjusting rod near one end of the pipe, the fixing seat is provided with a threaded hole communicating with the through hole, and a locking bolt is threadedly connected in the threaded hole for abutting and constraining the adjusting rod.

[0017] Preferably, the second clamping assembly includes a lower clamping piece arranged on the mounting seat, a fixing frame is provided on the mounting seat, a quick clamp is installed on the fixing frame, the quick clamp and the lower clamping piece are spaced apart and cooperate to clamp the pipe.

[0018] Compared with the prior art, the present invention comprises a cylinder provided on the second clamping assembly, the cylinder shaft of which is mounted with a connecting assembly that is detachably connected to the first clamping assembly. The present invention utilizes a connecting assembly to connect the cylinder located in the second clamping assembly to the first clamping assembly, thereby effectively connecting the first clamping assembly to the second clamping assembly. The connection between the two effectively shares the force generated by the hydraulic cylinder during press-fitting, thereby preventing the cylinder from being stretched by the press-fitting pressure due to unilateral force, which could result in the pipe being unable to be press-fitted properly or even damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the three-dimensional structural diagrams of the fixing fixture;

[0020] Figure 2 The second schematic diagram of the three-dimensional structure of the fixing fixture;

[0021] Figure 3 Schematic diagram of the planar structure of the fixing fixture;

[0022] Figure 4 Schematic diagram of the cross-sectional structure of the fixing fixture;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the locking plug-in;

[0024] Figure 6 The third schematic diagram of the three-dimensional structure of the fixing fixture;

[0025] Figure 7 Schematic diagram of the three-dimensional structure of the first pressing assembly and the second pressing assembly;

[0026] Figure 8 This is a schematic diagram showing the first clamping assembly and the second clamping assembly in a separated state;

[0027] Figure 9 This is a schematic diagram showing the first clamping component and the second clamping component in a separated state. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] See also Figures 1-9 A fixing fixture for assembling steel-plastic conversion pipe fittings includes a machine platform 10. A first clamping assembly 20 and a second clamping assembly 30 for clamping a pipe fitting 100 are spaced apart on the machine platform 10. The second clamping assembly 30 is movable left and right relative to the machine platform 10. A cylinder 40 is provided on the second clamping assembly 30. A cylinder shaft 410 of the cylinder 40 is mounted with a connecting assembly 50 that is detachably connected to the first clamping assembly 20.

[0030] The connecting assembly 50 is configured such that when the connecting assembly 50 is connected to the cylinder shaft 410 and the first clamping assembly 20 , the cylinder shaft 410 can be extended and retracted to drive the second clamping assembly 30 to move left and right relative to the machine platform 10 .

[0031] When installing the pipe 100, the cylinder 40 drives the cylinder shaft 410 to extend toward the first clamping assembly 20. Since the first clamping assembly 20 is fixed, the extension of the cylinder shaft 410 can drive the second clamping assembly 30 to move away from the first clamping assembly 20, thereby creating an installation space between the first clamping assembly 20 and the second clamping assembly 30. Figure 8 Then remove the connecting assembly 50 and retract the cylinder shaft 410 to prevent the connecting assembly 50 and the cylinder shaft 410 from interfering with the installation of the pipe 100. Figure 9 , so as to facilitate installation of the pipe fitting 100 between the first clamping assembly 20 and the second clamping assembly 30 .

[0032] When the pipe 100 is placed between the first clamping assembly 20 and the second clamping assembly 30, the cylinder 40 is then driven to move the cylinder shaft 410 toward the side of the first clamping assembly 20 until the cylinder shaft 410 is at a preset position, and then the connecting assembly 50 is used to connect and lock the cylinder shaft 410 and the first clamping assembly 20. The connection between the two can effectively share the force generated by the hydraulic cylinder during press-fitting, so as to avoid the problem that the cylinder is easily stretched by the press-fitting pressure due to the force on one side, which may cause the pipe to be unable to be press-fitted normally and the pipe to be damaged.

[0033] See also Figures 2 to 5 The connecting component 50 includes a first connecting member 510, a second connecting member 520 and a locking plug-in 530. The first connecting member 510 is arranged on the cylinder shaft 410, and a first slot 511 is provided on the first connecting member 510. The second connecting member 520 is arranged on the first clamping component 20, and a second slot 521 is provided on the second connecting member 520. The locking plug-in 530 cooperates with the first connecting member 510 and the second connecting member 520 plug-in. The locking plug-in 530 is provided with a limiting rib 531 for being inserted into the first slot 511 and the second slot 521.

[0034] The locking plug 530 is inserted and matched with the first connector 510 and the second connector 520 from top to bottom, which can achieve quick connection or disassembly. During the upward and downward movement of the locking plug 530, the limiting rib plug is disengaged from the first slot 511 and the second slot 521 or from the first slot 511 and the second slot 521.

[0035] See also Figure 5, a handle pull ring 540 is provided on the locking plug-in 530. The function of the handle pull ring 540 is to facilitate gripping and driving the locking plug-in 540 to move up and down.

[0036] See also Figure 1 and Figure 2 The first clamping assembly 20 includes a fixed plate 210 fixedly set on the machine 10, and the wall of the fixed plate 210 facing the second clamping assembly 30 is provided with a plurality of first semicircular clamps 220 for clamping the pipe 100; the second clamping assembly 30 includes a movable plate 310 movable left and right relative to the machine 10, and the wall of the movable plate 310 facing the fixed plate 210 is provided with a plurality of second semicircular clamps 320 for clamping the pipe 100; the cylinder 40 is fixedly installed on the movable plate 310; the first semicircular clamps 220 and the second semicircular clamps 320 enclose a circle for clamping the pipe 100.

[0037] In the present invention, the fixing plate 210 is fixed to the machine platform 10 by bolts.

[0038] In the present invention, the first clamping assembly 20 is provided with a positioning bracket 60 that fits the pipe 100. The positioning bracket 60 is used to position and assemble the pipe 100, and plays a supporting and positioning role so that the pipe 110 is placed between the first clamping assembly 20 and the second clamping assembly 30.

[0039] See also Figure 7 A mounting base 110 is provided at the rear side of the machine 10. A first pressing assembly 70 for pressing the rear end of the pipe 100 is provided on the mounting base 110. A second pressing assembly 80 for pressing the upper surface of the pipe 100 is provided on the mounting base 110. In this embodiment, the first pressing assembly 70 and the second pressing assembly 80 are used to secure the rear end of the pipe 100 to prevent warping of the front end of the pipe 100 during press-fitting, thereby ensuring the clamping stability of the pipe 100 and ensuring normal press-fitting.

[0040] See also Figure 7 The first clamping assembly 70 includes a fixing seat 710 arranged on the mounting seat 110, and a through hole 720 is provided on the fixing seat 710 to pass through the front and back. An adjusting rod 730 is movably inserted in the through hole 720, and a positioning plate 740 is provided on the adjusting rod 730 near one end of the pipe 100. A threaded hole is provided on the fixing seat 710 to communicate with the through hole 720, and a locking bolt 750 is threadedly connected in the threaded hole for abutting and constraining the adjusting rod 730.

[0041] After the pipe 100 is clamped by the first clamping assembly 20 and the second clamping assembly 30, the locking bolt 750 is loosened, and the front-to-back position of the positioning plate 740 is adjusted so that the positioning plate 740 is aligned with the rear end of the pipe 100. The locking bolt 750 is then tightened to lock the front-to-back position of the positioning plate 740. This ensures that the positioning plate 740 is aligned with the pipe 100, thereby restricting the pipe 100 from moving backward. The structure is simple and stable.

[0042] See also Figure 7 The second clamping assembly 80 includes a lower clamping piece 810 arranged on the mounting seat 110, a fixing frame 820 is provided on the mounting seat 110, and a quick clamp 830 is installed on the fixing frame 820. The quick clamp 830 and the lower clamping piece 810 are arranged at intervals above and below, and the two cooperate to clamp the pipe 100.

[0043] When the pipe 100 is placed between the first clamping assembly 20 and the second clamping assembly 30, the pipe 100 is placed on the upper surface of the lower clamping member 810. After the pipe 100 is clamped by the first clamping assembly 20 and the second clamping assembly 30, the quick clamp 830 is driven to press the upper surface of the pipe 100. This function is to fix the rear end of the pipe 100 to prevent the front end of the pipe 100 from warping during press-fitting, thereby ensuring the clamping stability of the pipe 100 and normal press-fitting.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for assembling steel-plastic conversion pipe fittings, comprising a machine platform (10), wherein a first clamping assembly (20) and a second clamping assembly (30) for clamping the pipe fitting (100) are arranged on the machine platform (10) at intervals on the left and right, and the second clamping assembly (30) is arranged to move left and right relative to the machine platform (10), characterized in that: The second clamping assembly (30) is provided with a cylinder (40), and a cylinder shaft (410) of the cylinder (40) is mounted with a connecting assembly (50) detachably connected to the first clamping assembly (20); The connecting assembly (50) is configured such that when the connecting assembly (50) is connected to the cylinder shaft (410) and the first clamping assembly (20), the cylinder shaft (410) can be extended and retracted to drive the second clamping assembly (30) to move left and right relative to the machine platform (10).

2. The fixing fixture for assembling steel-plastic conversion pipe fittings according to claim 1 is characterized in that: The connecting assembly (50) includes a first connecting member (510), a second connecting member (520) and a locking plug-in (530), wherein the first connecting member (510) is arranged on the cylinder shaft (410), and a first slot (511) is provided on the first connecting member (510), the second connecting member (520) is arranged on the first clamping assembly (20), and a second slot (521) is provided on the second connecting member (520), and the locking plug-in (530) cooperates with the first connecting member (510) and the second connecting member (520) plug-in, and a limiting rib (531) is provided on the locking plug-in (530) for being plugged into the first slot (511) and the second slot (521).

3. The fixing fixture for assembling steel-plastic conversion pipe fittings according to claim 2 is characterized in that: The locking plug-in (530) is provided with a handle pull ring (540).

4. A fixing fixture for assembling steel-plastic conversion pipe fittings according to any one of claims 1 to 3, characterized in that: The first clamping assembly (20) comprises a fixed plate (210) fixedly arranged on the machine platform (10), and a wall surface of the fixed plate (210) facing the second clamping assembly (30) is provided with a plurality of first semicircular clamps (220) for clamping the pipe (100); The second clamping assembly (30) includes a movable plate (310) arranged to move left and right relative to the machine platform (10), and a plurality of second semicircular clamps (320) for clamping the pipe (100) are arranged on a wall surface of the movable plate (310) facing the fixed plate (210); The cylinder (40) is fixedly mounted on the movable plate (310); The first semicircular clamping piece (220) and the second semicircular clamping piece (320) enclose and form a circle for clamping the pipe (100).

5. The fixing fixture for assembling steel-plastic conversion pipe fittings according to claim 1 is characterized in that: The first clamping assembly (20) is provided with a positioning bracket (60) that fits the pipe (100).

6. The fixing fixture for assembling steel-plastic conversion pipe fittings according to claim 1, characterized in that: A mounting seat (110) is provided on the rear side of the machine (10), a first pressing assembly (70) for pressing the rear end of the pipe (100) is provided on the mounting seat (110), and a second pressing assembly (80) for pressing the upper surface of the pipe (100) is provided on the mounting seat (110).

7. The fixing fixture for assembling steel-plastic conversion pipe fittings according to claim 6, characterized in that: The first clamping assembly (70) includes a fixing seat (710) arranged on the mounting seat (110), a through hole (720) extending from front to back is provided on the fixing seat (710), an adjusting rod (730) is movably inserted into the through hole (720), a positioning plate (740) is provided at one end of the adjusting rod (730) close to the pipe (100), a threaded hole communicating with the through hole (720) is provided on the fixing seat (710), and a locking bolt (750) for abutting and constraining the adjusting rod (730) is threadedly connected in the threaded hole.

8. The fixing fixture for assembling steel-plastic conversion pipe fittings according to claim 6, characterized in that: The second clamping assembly (80) includes a lower clamping member (810) arranged on the mounting seat (110), a fixing frame (820) is provided on the mounting seat (110), a quick clamp (830) is installed on the fixing frame (820), and the quick clamp (830) and the lower clamping member (810) are arranged at an interval above and below, and the two cooperate to clamp the pipe (100).

Images