Pipe expanding and chambering integrated equipment

Abstract

The utility model belongs to the technical field of pipe expanding machines, and provides pipe expanding and hole expanding integrated equipment which comprises a machine table, a fixing base used for containing a pipe fitting and a pressing module used for pressing the pipe fitting on the fixing base are arranged on the machine table, the pipe expanding and hole expanding integrated equipment further comprises an expanding rod, and a first abutting mechanism and a first driving mechanism connected with the expanding rod are further arranged on the machine table. The first abutting mechanism is used for abutting the end, away from the expansion rod, of the pipe fitting, and the first driving mechanism is used for driving the expansion rod to penetrate into the pipe fitting for pipe expansion; a limiting mechanism is further arranged on the pressing module. And when the expansion rod is pulled out of the pipe fitting, the limiting mechanism is used for limiting the movement of the pipe fitting. The pipe fitting is limited through the limiting mechanism, so that the expansion rod can be pulled out of the pipe fitting, and the situation that the expansion rod is clamped in the pipe fitting is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of tube expander technology, specifically a tube expander and hole enlarger integrated device. Background Technology

[0002] Tube expanders are key pieces of equipment in industrial manufacturing used to achieve precise connections between tubes and tube sheets. They are widely used in the production of products such as heat exchangers, boilers, and pressure vessels. Their core function is to induce plastic deformation in tubes through mechanical or hydraulic means.

[0003] CN202320967754.9 discloses a device for expanding the diameter of copper tubes, including a workbench. A fixed plate is fixedly connected to the top of the workbench. A first electric push rod is provided through the top of the fixed plate. A first clamping plate is fixedly connected to the output end of the first electric push rod. A second clamping plate that cooperates with the first clamping plate is fixedly connected to the top of the workbench. A second electric push rod is provided through the back of the fixed plate. The output end of the second electric push rod extends to the surface of the fixed plate and is fixedly connected to a push plate. A flaring mechanism is provided on the left side of the top of the workbench.

[0004] In the above-mentioned technical solution, one end of the copper tube is covered by a heating cover to facilitate subsequent flaring. However, during tube flaring, the expansion rod needs to penetrate the fitting to complete the expansion of the inner diameter of the fitting. In this way, the expansion rod will get stuck inside the fitting, which will prevent the expansion rod from being pulled out of the fitting. Utility Model Content

[0005] The purpose of this utility model is to solve the above problems and provide an integrated tube expansion and hole expansion device. This device limits the tube fitting through a limiting mechanism, so that the expansion rod can be pulled out of the tube fitting, thus avoiding the situation where the expansion rod gets stuck inside the tube fitting.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An integrated tube expansion and hole enlargement device includes a machine base, on which a fixed seat for placing tube fittings and a pressing module for pressing the tube fittings onto the fixed seat are provided. It also includes an expansion rod, and the machine base is further provided with a first pressing mechanism and a first driving mechanism connected to the expansion rod.

[0008] The first clamping mechanism is used to clamp the end of the pipe away from the expansion rod, and the first driving mechanism is used to drive the expansion rod to penetrate the pipe for expansion.

[0009] The clamping module is also equipped with a limiting mechanism; when the expansion rod is pulled out of the pipe, the limiting mechanism is used to restrict the movement of the pipe.

[0010] In the above-mentioned tube expansion and hole enlargement integrated device, the clamping module includes a fixed frame and a clamping cylinder mounted on the fixed frame. The output end of the clamping cylinder is provided with a pressure block, which is located above the fixed base.

[0011] In the above-mentioned tube expansion and hole expansion integrated device, the limiting mechanism includes a first fixing block and a lifting cylinder mounted on a fixed frame, and a second fixing block is provided on the output end of the lifting cylinder;

[0012] The first fixing block is located on the end of the fixing seat near the expansion rod, and the second fixing block is located above the first fixing block;

[0013] The first fixing block has a first groove at its top and the second fixing block has a second groove at its bottom. The lifting cylinder is used to drive the second fixing block downward and press it on the first fixing block so that the first groove and the second groove cooperate to form a limiting part for preventing the pipe from moving in the direction of the expansion rod reset.

[0014] In the above-mentioned tube expansion and hole reaming integrated device, the first driving mechanism includes a first guide rail horizontally arranged on the machine base, a first sliding block slidably connected to the first guide rail, a first mounting base and a first support block arranged on the machine base, wherein the first mounting base and the first support block are respectively located at both ends of the first guide rail;

[0015] The expansion rod is movably mounted on the first support block, and one end of the expansion rod is connected to the first sliding block. The first mounting base is provided with a first cylinder, which is connected to the first sliding block. The first cylinder is used to drive the first sliding block to slide towards the pipe fitting so that the expansion rod can be inserted into the pipe fitting for expansion.

[0016] In the above-mentioned tube expansion and hole expansion integrated device, the first pressing mechanism includes a first support seat set on the machine base, a second cylinder is provided on the first support seat, a first pressing block is provided on the output end of the second cylinder, and a through hole for the expansion rod to be inserted on the first pressing block.

[0017] In the above-mentioned tube expansion and reaming integrated device, the machine base is further provided with a moving mechanism, which is located between the first driving mechanism and the first clamping mechanism; it also includes a second clamping mechanism and a flaring mechanism provided on the machine base;

[0018] The first driving mechanism and the second clamping mechanism are arranged side by side, and the flaring mechanism and the first clamping mechanism are arranged side by side;

[0019] Both the fixing frame and the fixing seat are mounted on the moving mechanism. The moving mechanism is used to drive the fixing seat to move so that the pipe fitting moves to the flaring mechanism after the expansion is completed to flare the end.

[0020] The second clamping mechanism is used to clamp the end of the pipe fitting away from the flaring mechanism.

[0021] In the above-mentioned tube expansion and hole reaming integrated device, the reaming mechanism includes a second support seat set on the machine base and a third cylinder set on the second support seat. A connecting block is provided on the output end of the third cylinder, and a reaming core column is horizontally arranged on the connecting block.

[0022] In the above-mentioned tube expansion and hole expansion integrated device, the second pressing mechanism includes a second guide rail horizontally arranged on the machine platform, a second sliding block slidably connected to the second guide rail, a second mounting base and a second support block arranged on the machine platform, wherein the second mounting base and the second support block are respectively located at both ends of the second guide rail;

[0023] A positioning rod is movably inserted through the second support block, one end of which is connected to the second sliding block. A fourth cylinder is provided on the second mounting base, and the output end of the fourth cylinder is connected to the second sliding block.

[0024] The positioning rod is provided with a second abutting block, and the fourth cylinder is used to drive the second sliding block to slide towards the pipe, so that the positioning rod is first inserted into the pipe for positioning and then the second abutting block abuts one end of the pipe.

[0025] In the above-mentioned tube expansion and hole reaming integrated device, the fixed base is provided with multiple placement slots for placing tubes; the number of expansion rods, through holes, flared cores and positioning rods all correspond to the number of placement slots.

[0026] In the aforementioned tube expansion and hole enlargement integrated device, the moving mechanism includes two slide rails arranged side by side, a base slidably connected to the slide rails, and a second drive mechanism connected inside the machine base. The second drive mechanism is connected to the base, and the fixed seat and the fixed frame are both connected to the base.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] In this invention, the pipe is first pressed onto the fixed seat by the clamping module, and then the first driving mechanism drives the expansion tube to expand the pipe. The pipe is then limited by a limiting mechanism, so that the expansion rod can be pulled out of the pipe, thus avoiding the situation where the expansion rod gets stuck inside the pipe. Attached Figure Description

[0029] Figure 1 This is a perspective view of an integrated tube expansion and hole enlargement device according to Embodiment 1;

[0030] Figure 2 This is a perspective view of the clamping module of an integrated tube expansion and hole enlargement device according to Embodiment 1;

[0031] Figure 3 This is a perspective view of the first clamping mechanism of an integrated tube expansion and hole enlargement device according to Embodiment 1;

[0032] Figure 4 This is a perspective view of the second clamping mechanism of an integrated tube expansion and hole enlargement device according to Embodiment 1;

[0033] Figure 5 This is a perspective view of the positioning rod of an integrated tube expansion and hole enlargement device according to Embodiment 1;

[0034] The figure labels for each figure are as follows:

[0035] 1. Machine base; 11. Moving mechanism; 111. Slide rail; 112. Second drive mechanism; 113. Base; 2. Fixed seat; 21. Placement slot; 3. Pressing module; 31. Fixed frame; 32. Pressing cylinder; 33. Pressing block; 4. Limiting mechanism; 41. Lifting cylinder; 42. First fixed block; 421. First groove; 43. Second fixed block; 431. Second groove; 5. First drive mechanism; 51. First cylinder; 52. First mounting seat; 53. First sliding block; 53. First guide rail; 55. First support block; 6. First clamping mechanism; 61. First support seat; 62. Second cylinder; 63. First clamping block; 631. Through hole; 7. Flaring mechanism; 71. Second support seat; 72. Third cylinder; 73. Flaring core; 8. Second clamping mechanism; 81. Second guide rail; 82. Second sliding block; 83. Second support block; 84. Second mounting seat; 85. Positioning rod; 851. Second clamping block; 86. Fourth cylinder; 9. Expansion rod. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example 1

[0038] refer to Figures 1-5 An integrated tube expansion and hole enlargement device includes a machine base 1, on which a fixed seat 2 for placing tubes and a pressing module 3 for pressing the tubes onto the fixed seat 2 are provided. It also includes an expansion rod 9. The machine base 1 is further provided with a first pressing mechanism 6 and a first driving mechanism 5 connected to the expansion rod 9.

[0039] The first clamping mechanism 6 is used to clamp the end of the pipe away from the expansion rod 9, and the first driving mechanism 5 is used to drive the expansion rod 9 to penetrate the pipe for expansion.

[0040] The clamping module 3 is also provided with a limiting mechanism 4; when the expansion rod 9 is pulled out of the pipe, the limiting mechanism 4 is used to restrict the movement of the pipe.

[0041] In this design, the worker first places the pipe fitting on the fixed seat 2, and then uses the clamping module 3 to press the pipe fitting onto the fixed seat 2. The first clamping mechanism 6 is controlled to clamp the end of the pipe fitting away from the expansion rod 9. After clamping is completed, the first drive mechanism 5 drives the expansion rod 9 to move towards the pipe fitting and insert it into the pipe fitting to expand it. After the expansion is completed, the limiting mechanism 4 limits the pipe fitting. In this way, when the first drive mechanism 5 drives the expansion rod 9 to reset, the expansion rod 9 can be smoothly pulled out of the pipe fitting. In this way, the expansion rod 9 can be pulled out of the pipe fitting more easily, avoiding the situation where the expansion rod 9 gets stuck in the pipe fitting.

[0042] Preferably, the clamping module 3 includes a fixed frame 31 and a clamping cylinder 32 disposed on the fixed frame 31. A pressure block 33 is provided on the output end of the clamping cylinder 32, and the pressure block 33 is located above the fixed base 2.

[0043] Furthermore, after the workpiece is placed on the fixed groove, the pressing block 33 is driven down by the pressing cylinder 32 to press the pipe fitting onto the fixed seat 2.

[0044] In this embodiment, the limiting mechanism 4 includes a first fixing block 42 and a lifting cylinder 41 disposed on the fixing frame 31, and a second fixing block 43 is provided on the output end of the lifting cylinder 41;

[0045] The first fixing block 42 is located on the end of the fixing base 2 near the expansion rod 9, and the second fixing block 43 is located above the first fixing block 42;

[0046] The top of the first fixing block 42 is provided with a first groove 421, and the bottom of the second fixing block 43 is provided with a second groove 431. The lifting cylinder 41 is used to drive the second fixing block 43 downward and press it on the first fixing block 42, so that the first groove 421 and the second groove 431 cooperate to form a limiting part (not shown in the figure) for blocking the pipe from moving in the direction of resetting the expansion rod 9.

[0047] Specifically, the first drive mechanism 5 drives the expansion rod 9 to penetrate the pipe for expansion. After the expansion is completed, the lifting cylinder 41 drives the second fixing block 43 to press on the first fixing block 42, so that the first groove 421 and the second groove 431 cooperate to form a limiting part. Then, the first drive mechanism 5 drives the expansion rod 9 to reset and uses the limiting part to block the pipe from moving in the direction of the expansion rod 9 reset, so that the expansion rod 9 can be pulled out of the pipe.

[0048] More preferably, the first drive mechanism 5 includes a first guide rail 53 horizontally arranged on the machine base 1, a first sliding block 53 slidably connected to the first guide rail 53, a first mounting base 52 and a first support block 55 arranged on the machine base 1, wherein the first mounting base 52 and the first support block 55 are respectively located at both ends of the first guide rail 53.

[0049] The expansion rod 9 is movably mounted on the first support block 55, and one end of the expansion rod 9 is connected to the first sliding block 53. The first mounting base 52 is provided with a first cylinder 51, which is connected to the first sliding block 53. The first cylinder 51 is used to drive the first sliding block 53 to slide towards the pipe so that the expansion rod 9 can be inserted into the pipe to expand the pipe.

[0050] Specifically, when expanding the pipe fitting, the first cylinder 51 extends and drives the first sliding block 53 to slide on the first guide rail 53 towards the pipe fitting, thereby driving the expansion rod 9 to move along the pipe fitting and penetrate into the pipe fitting for expansion. After the expansion is completed, the first cylinder 51 resets and drives the first sliding block 53 to move away from the pipe fitting, thereby driving the expanded pipe to be pulled out of the pipe fitting. The first support block 55 is mainly used to support the expansion rod 9 to improve its stability during movement.

[0051] Preferably, the first pressing mechanism 6 includes a first support base 61 disposed on the machine base 1, a second cylinder 62 disposed on the first support base 61, a first pressing block 63 disposed on the output end of the second cylinder 62, and a through hole 631 disposed on the first pressing block 63 for inserting the expansion rod 9.

[0052] Furthermore, before the tube expands, the second cylinder 62 extends to drive the first clamping block 63 to press against one end of the tube. Then, the first driving mechanism 5 drives the expansion rod 9 to expand the tube. Since the tube needs to pass through the entire tube during expansion, a through hole 631 is provided on the first clamping block 63. This allows the expansion rod 9 to be inserted into the through hole 631 when it passes through the tube, thereby preventing the expansion rod 9 from hitting the clamping block and reducing damage to the expansion rod 9.

[0053] In this embodiment, the machine base 1 is also provided with a moving mechanism 11, which is located between the first driving mechanism 5 and the first pressing mechanism 6; it also includes a second pressing mechanism 8 and a flaring mechanism 7 provided on the machine base 1;

[0054] The first driving mechanism 5 and the second clamping mechanism 8 are arranged side by side, and the flaring mechanism 7 and the first clamping mechanism 6 are arranged side by side;

[0055] Both the fixing frame 31 and the fixing seat 2 are mounted on the moving mechanism 11. The moving mechanism 11 is used to drive the fixing seat 2 to move so that the pipe fitting moves to the flaring mechanism 7 after the expansion is completed to flare the end.

[0056] The second clamping mechanism 8 is used to clamp the end of the pipe fitting away from the flaring mechanism 7.

[0057] Specifically, the fixed base 2 and the fixed frame 31 are set on the moving mechanism 11. The moving mechanism 11 drives the fixed base 2 and the fixed frame 31 to move, so that the pipe can reach the flaring mechanism 7 for flaring. During flaring, the second pressing mechanism 8 first presses one end of the pipe, and then the other end of the pipe is flared directly by the flaring mechanism 7.

[0058] Preferably, the flaring mechanism 7 includes a second support base 71 disposed on the machine base 1 and a third cylinder 72 disposed on the second support base 71. A connecting block is provided on the output end of the third cylinder 72, and a flaring core 73 is horizontally disposed on the connecting block.

[0059] The second clamping mechanism 8 includes a second guide rail 81 horizontally arranged on the machine base 1, a second sliding block 82 slidably connected to the second guide rail 81, a second mounting base 84 and a second support block 83 arranged on the machine base 1, wherein the second mounting base 84 and the second support block 83 are respectively located at both ends of the second guide rail 81;

[0060] A positioning rod 85 is movably inserted through the second support block 83. One end of the positioning rod 85 is connected to the second sliding block 82. A fourth cylinder 86 is provided on the second mounting base 84. The output end of the fourth cylinder is connected to the second sliding block 82.

[0061] The positioning rod 85 is provided with a second abutting block 851. The fourth cylinder is used to drive the second sliding block 82 to slide towards the pipe, so that the positioning rod 85 is first inserted into the pipe for positioning and then the second abutting block 851 abuts one end of the pipe.

[0062] Furthermore, during the flaring process, the fourth cylinder 86 extends to drive the second sliding block 82 to move along the pipe direction, so that the positioning rod 85 is first inserted into the pipe and the end of the pipe away from the flaring core 73 is pressed by the second pressing block 851. Then, the third cylinder 72 extends to drive the connecting block to move towards the pipe direction, so as to drive the flaring core 73 to move towards the pipe direction and flare the end of the pipe. After the flaring is completed, the third cylinder 72 and the fourth cylinder 86 are reset. The second support seat 71 is used to improve the stability of the positioning rod 85 during the movement process.

[0063] In this embodiment, the fixing base 2 is provided with multiple placement slots 21 for placing pipe fittings; the number of expansion rods 9, through holes 631, flared core pillars 73 and positioning rods 85 all correspond to the number of placement slots 21.

[0064] Furthermore, multiple placement slots 21 are provided on the fixed base 2, and the number of expansion rods 9, through holes 631, flared cores 73 and positioning rods 85 corresponds to the placement slots 21. This allows for the expansion and flaring of multiple pipe fittings at one time, improving work efficiency.

[0065] Preferably, the moving mechanism 11 includes two slide rails 111 arranged side by side, a base 113 slidably connected to the slide rails 111, and a second drive mechanism 112 connected to the machine base 1. The second drive mechanism 112 is connected to the base 113, and the fixed seat 2 and the fixed frame 31 are both connected to the base 113.

[0066] The second drive mechanism 112 can be a combination of a motor, a lead screw and a lead screw nut, or it can be a linear motor.

[0067] Specifically, after the tube expansion is completed, the base 113 is moved by the second drive mechanism 112. The base 113 moves on the slide rail 111, which in turn drives the fixed seat 2 and the fixed frame 31 to move, so that the tube on the fixed seat 2 can be moved to the flaring mechanism 7 for flaring.

[0068] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements or modifications can be made without departing from the principle of the present utility model, and these improvements or modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tube expansion and reaming integrated device, comprising a machine base, wherein the machine base is provided with a fixing seat for placing tube fittings and a clamping module for pressing the tube fittings onto the fixing seat, characterized in that, It also includes an expansion rod, and the machine base is further provided with a first clamping mechanism and a first driving mechanism connected to the expansion rod; The first clamping mechanism is used to clamp the end of the pipe away from the expansion rod, and the first driving mechanism is used to drive the expansion rod to penetrate the pipe for expansion. The clamping module is also equipped with a limiting mechanism; when the expansion rod is pulled out of the pipe, the limiting mechanism is used to restrict the movement of the pipe.

2. The tube expansion and hole reaming integrated device according to claim 1, characterized in that, The clamping module includes a fixed frame and a clamping cylinder mounted on the fixed frame. A pressure block is provided on the output end of the clamping cylinder, and the pressure block is located above the fixed base.

3. The tube expansion and hole reaming integrated device according to claim 2, characterized in that, The limiting mechanism includes a first fixing block and a lifting cylinder mounted on a fixed frame, with a second fixing block provided on the output end of the lifting cylinder; The first fixing block is located on the end of the fixing seat near the expansion rod, and the second fixing block is located above the first fixing block; The first fixing block has a first groove at its top and the second fixing block has a second groove at its bottom. The lifting cylinder is used to drive the second fixing block downward and press it on the first fixing block so that the first groove and the second groove cooperate to form a limiting part for preventing the pipe from moving in the direction of the expansion rod reset.

4. The tube expansion and reaming integrated device according to claim 1, characterized in that, The first driving mechanism includes a first guide rail horizontally arranged on the machine base, a first sliding block slidably connected to the first guide rail, a first mounting base and a first support block arranged on the machine base, wherein the first mounting base and the first support block are respectively located at both ends of the first guide rail; The expansion rod is movably mounted on the first support block, and one end of the expansion rod is connected to the first sliding block. The first mounting base is provided with a first cylinder, which is connected to the first sliding block. The first cylinder is used to drive the first sliding block to slide towards the pipe fitting so that the expansion rod can be inserted into the pipe fitting for expansion.

5. The tube expansion and reaming integrated device according to claim 1, characterized in that, The first clamping mechanism includes a first support seat mounted on the machine base, a second cylinder mounted on the first support seat, a first clamping block mounted on the output end of the second cylinder, and a through hole for inserting an expansion rod on the first clamping block.

6. The tube expansion and hole reaming integrated device according to claim 2, characterized in that, The machine base is also provided with a moving mechanism, which is located between the first driving mechanism and the first clamping mechanism; it also includes a second clamping mechanism and a flaring mechanism disposed on the machine base. The first driving mechanism and the second clamping mechanism are arranged side by side, and the flaring mechanism and the first clamping mechanism are arranged side by side; Both the fixing frame and the fixing seat are mounted on the moving mechanism. The moving mechanism is used to drive the fixing seat to move so that the pipe fitting moves to the flaring mechanism after the expansion is completed to flare the end. The second clamping mechanism is used to clamp the end of the pipe fitting away from the flaring mechanism.

7. The tube expansion and reaming integrated device according to claim 6, characterized in that, The flaring mechanism includes a second support base mounted on the machine base and a third cylinder mounted on the second support base. A connecting block is provided on the output end of the third cylinder, and a flaring core is horizontally mounted on the connecting block.

8. The tube expansion and hole reaming integrated device according to claim 6, characterized in that, The second clamping mechanism includes a second guide rail horizontally arranged on the machine base, a second sliding block slidably connected to the second guide rail, a second mounting base and a second support block arranged on the machine base, wherein the second mounting base and the second support block are respectively located at both ends of the second guide rail; A positioning rod is movably inserted through the second support block, one end of which is connected to the second sliding block. A fourth cylinder is provided on the second mounting base, and the output end of the fourth cylinder is connected to the second sliding block. The positioning rod is provided with a second abutting block, and the fourth cylinder is used to drive the second sliding block to slide towards the pipe, so that the positioning rod is first inserted into the pipe for positioning and then the second abutting block abuts one end of the pipe.

9. The tube expansion and reaming integrated device according to claim 7, characterized in that, The fixed base is provided with multiple placement slots for placing pipe fittings; the number of expansion rods, through holes, flared cores and positioning rods all correspond to the number of placement slots.

10. The tube expansion and hole reaming integrated device according to claim 6, characterized in that, The moving mechanism includes two slide rails arranged side by side, a base slidably connected to the slide rails, and a second drive mechanism connected inside the machine tool. The second drive mechanism is connected to the base, and the fixed seat and the fixed frame are both connected to the base.

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