Machining equipment for electric smelting pipe fitting

Abstract

The utility model discloses processing equipment for an electric melting pipe fitting, which relates to the technical field of pipe fitting processing and comprises a clamping mechanism, a tool rest, a tool bit, a heating wire, a wire hole, a wire outlet and a dismounting wrench. According to the utility model, the detachable cutter head is arranged, so that the cutter head can be replaced according to the use requirements, the sections and the sizes of the notches formed in the hot melting pipe fitting are different, and the hot melting pipe fitting is suitable for more use requirements, and the heating wire is pushed to slide towards the notches in the hot melting pipe fitting through the pressing wheel by arranging the wire pressing mechanism. The heating wire is prevented from falling off and winding, the yield of products is improved, the heating wire is prevented from being damaged, and the device can be suitable for machining of pipe diameters of different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting processing, in particular to a processing device for electric fusion pipe fittings. Background Art

[0002] Hot melt connection refers to a connection method between non-metal and non-metal after heating to the (liquid) melting point. It is widely used in the connection of pipes and fittings such as PP-R pipes, PB pipes, PE-RT pipes, etc. Hot melt connection has good sealing and easy operation.

[0003] However, hot melt connection requires the use of special heating tools to heat the ends of the pipes, and the heating tools used are different due to different pipe diameters. When the pipe diameter is large, the heating tools are inconvenient to use. Therefore, some pipes will be processed with heating wires and other wires on the inner wall of the pipes to achieve the purpose of hot melt connection.

[0004] For example, a multifunctional wiring machine for wiring, winding and cutting of electric fusion pipe fittings with the authorization announcement number CN103398256B includes a wiring knife bar, which makes a circular motion relative to the circular inner wall of the electric fusion pipe fitting, and the wiring knife bar sequentially performs slotting, embedding electric heating wires and slot closing actions on the inner wall of the electric fusion pipe fitting. The utility model directly embeds electric heating wires in the inner wall of the formed electric fusion pipe fitting, changes the traditional process of wiring first and then forming, greatly simplifies the traditional wiring process, improves production efficiency and saves manufacturing costs.

[0005] In actual application, the above technical solution is difficult to press into resistance wires of different diameters, and it is not convenient to adjust the slot size, making it difficult to meet different usage requirements. When installing heating wires and other wires, it is also not convenient to accurately install the wires in the appropriate position, which can easily cause the heating wires to be entangled or damaged, making operation inconvenient.

[0006] Therefore, it is necessary to provide a processing device for electric fusion pipe fittings to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a processing device for electrofusion pipe fittings to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a processing device for electrofusion pipe fittings, including a clamping mechanism and a tool holder, and also including:

[0009] A cutter head, the cutter head is placed on the upper end of the cutter holder and is detachably connected to the cutter holder;

[0010] A heating wire, wherein the heating wire passes through the cutter holder, and an end of the heating wire is placed at the lower end of the cutter head;

[0011] A wire hole, which is provided at the upper end of the tool holder;

[0012] A wire outlet, which is opened on one side of the tool holder and is placed at the lower end of the tool head;

[0013] The heating wire passes through the wire hole and the wire outlet, and the tool holder and the clamping mechanism are placed on the same axis;

[0014] A disassembly wrench is detachably connected to the tool holder.

[0015] Preferably, it also includes:

[0016] A disassembly slot, which is provided on one side of the tool holder and communicated with the wire outlet;

[0017] A knife edge, which is provided on one side of the knife holder and communicated with the disassembly groove;

[0018] A positioning wheel, which is placed inside the tool holder;

[0019] A plug hole is provided in the middle of the tool holder and is connected with the wire hole;

[0020] The wire pressing mechanism is arranged inside the tool holder.

[0021] Preferably, the wire pressing mechanism comprises a guide member and a pressing wheel, and the pressing wheel is rotatably connected to the guide member;

[0022] The pressing wheel is placed below the wire outlet;

[0023] The guide member is slidably connected to the tool holder;

[0024] A return spring is fixedly connected to one side of the guide member, and the other end of the return spring is fixedly connected to the tool holder.

[0025] Preferably, the cutter head comprises a cutting portion and a cutter body, wherein the cutting portion is disposed at the upper end of the cutter body and is fixedly connected to the cutter body.

[0026] Preferably, a guide slot is provided in the tool holder, and two sides of the positioning wheel are placed in the guide slot;

[0027] An annular wire groove is provided on the outer side of the positioning wheel.

[0028] Preferably, a pressing pad is fixedly connected to the middle part of the disassembly and assembly wrench;

[0029] One side of the disassembly wrench is fixedly connected with an insertion rod;

[0030] The end of the disassembly and assembly wrench is fixedly connected with a pull rod.

[0031] Preferably, one side of the guide member is fixedly connected to a limit rod, the return spring is sleeved on the outside of the limit rod, and the limit rod is slidably connected to the tool holder.

[0032] Preferably, a tensioning groove is provided at the bottom of the blade body, and the heating wire passes through the tensioning groove.

[0033] Preferably, the tool holder can rotate relative to the clamping mechanism, and at the same time, the tool holder can slide relative to the axis of the clamping mechanism.

[0034] Technical effects and advantages of the utility model:

[0035] 1. The utility model provides a cutter head and a cutting edge, and the cutter head is detachably connected so that the cutter head can be replaced according to the use requirements. By replacing the cutter head with different cutting part sizes, the notch section and size opened in the hot-melt pipe fitting are different, which is suitable for more use requirements and improves the scope of application.

[0036] 2. The utility model provides a clamping mechanism and a tool holder. When the tool holder rotates relative to the clamping mechanism and slides in a direction close to the clamping mechanism, the tool head can open a spiral notch on the inner wall of the hot-melt pipe fitting to facilitate the installation of the heating wire. At the same time, the density of the installed heating wires and the length of the heating wire installation stage can be controlled by adjusting the sliding speed and sliding amount of the tool holder along the axis, so that the heating wires can be laid out according to needs, thereby achieving the purpose of being suitable for hot-melt pipe fittings with different needs.

[0037] 3. The utility model provides a wire pressing mechanism, which pushes the heating wire to slide toward the notch in the hot-melt pipe by a pressing wheel, thereby preventing the heating wire from falling off and getting entangled, improving the product yield and avoiding damage to the heating wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the hot-melt pipe fitting in the utility model.

[0039] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0040] Figure 3 It is a structural schematic diagram of the tool holder in the utility model.

[0041] Figure 4 This is a schematic diagram of the state of installing the cutter head in the utility model.

[0042] Figure 5 This is a schematic diagram of the state of disassembling the cutter head in the utility model.

[0043] Figure 6 It is a schematic diagram of the internal structure of the tool holder in the utility model.

[0044] Figure 7It is a schematic diagram of the state of the cutter head cutting the inner wall of the hot-melt pipe in the utility model.

[0045] In the figure: 1. tool holder; 2. tool head; 3. heating wire; 4. wire hole; 5. wire outlet; 6. disassembly wrench; 7. disassembly groove; 8. knife edge; 9. positioning wheel; 10. socket; 11. wire pressing mechanism; 12. guide slide groove; 13. annular wire groove; 14. pressing pad; 15. plug rod; 16. pull rod; 17. hot melt pipe fitting; 18. terminal; 201. cutting part; 202. tool body; 203. tensioning groove; 111. guide piece; 112. pressing wheel; 113. reset spring; 114. limit rod. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] Embodiment 1, the utility model provides as follows Figures 1 to 7 The processing equipment of an electric fusion pipe fitting shown in the figure includes a clamping mechanism and a tool holder 1, the clamping mechanism is used to clamp a hot-melt pipe fitting 17, and a plurality of terminal posts 18 are fixedly connected to the upper end of the hot-melt pipe fitting 17, and the terminal posts 18 are installed through subsequent processes after the hot-melt pipe fitting 17 is processed, so as to process the hot-melt pipe fitting 17, and the hot-melt pipe fitting 17 is a pipe fitting to be processed, and the clamping mechanism can use a three-jaw chuck or the like to clamp and fix the pipe fitting, and the clamping mechanism is not shown in the figure, and also includes:

[0048] The cutter head 2 is placed at the upper end of the cutter holder 1 and is detachably connected to the cutter holder 1. The cutter head 2 is used to open a spiral notch in the hot-melt pipe 17. The detachable connection allows the cutter head 2 to be replaced according to usage requirements.

[0049] The heating wire 3 runs through the tool holder 1, and the end of the heating wire 3 is placed at the lower end of the tool head 2. The heating wire 3 is arranged on the inner wall of the hot-melt pipe 17 and placed in the spiral notch opened in the tool head 2. The two ends of the heating wire 3 are electrically connected to the corresponding terminals 18 respectively. After the heating wire 3 is connected to the power supply through the terminals 18, heat is generated to soften the inner wall of the hot-melt pipe 17, so as to facilitate the connection and installation of the hot-melt pipe 17. After the terminals 18 are disconnected from the power supply, the inner wall of the hot-melt pipe 17 is cooled and solidified to ensure the connection and sealing of the hot-melt pipe 17. The heating wire 3 can be a wire material that generates heat when powered on, such as a resistance wire or an electric heating wire.

[0050] The wire hole 4 is provided at the upper end of the tool holder 1 and is used to guide the sliding direction and position of the heating wire 3 in the tool holder 1 .

[0051] The wire outlet 5 is opened on one side of the tool holder 1, and the wire outlet 5 is placed at the lower end of the tool head 2. The heating wire 3 extends from the end of the wire outlet 5, and an appropriate length of the heating wire 3 is reserved before processing so that the heating wire 3 can be connected to the power supply later, and the end of the pulled-out heating wire 3 needs to be temporarily fixed on the outside of the hot-melt pipe 17 to prevent the heating wire 3 from being entangled or falling off during processing.

[0052] The heating wire 3 passes through the wire hole 4 and the wire outlet 5, and the tool holder 1 and the clamping mechanism are placed on the same axis.

[0053] The disassembly wrench 6 is detachably connected to the tool holder 1 and is used for being installed on the disassembly tool head 2 .

[0054] Furthermore, it also includes:

[0055] The disassembly groove 7 is provided on one side of the tool holder 1 and is communicated with the wire outlet 5 . The disassembly groove 7 is disposed on the lower side of the tool head 2 .

[0056] The blade edge 8 is provided on one side of the tool holder 1 and communicated with the disassembly groove 7 . The cutter head 2 is installed in the blade edge 8 , and the blade edge 8 and the cutter head 2 are interference fit.

[0057] The positioning wheel 9 is placed inside the tool holder 1. The positioning wheel 9 can rotate relative to the tool holder 1 and can slide relative to the tool holder 1. The heating wire 3 is placed on the outside of the positioning wheel 9. The positioning wheel 9 supports and limits the heating wire 3 to prevent the heating wire 3 from being broken or scratched due to transition bending.

[0058] The jack 10 is provided in the middle of the tool holder 1 and is connected with the wire hole 4. The heating wire 3 passes through the jack 10, and the heating wire 3 passes through the wire hole 4, the jack 10 and the wire outlet 5 in turn. The jack 10 also provides a fulcrum for the disassembly and assembly wrench 6 when in use.

[0059] The wire pressing mechanism 11 is disposed inside the cutter holder 1 and is used to push the heating wire 3 out of the notch formed in the cutter head 2 to prevent the heating wire 3 from falling off or getting entangled.

[0060] Specifically, the wire pressing mechanism 11 includes a guide member 111 and a pressing wheel 112 , the pressing wheel 112 is rotatably connected to the guide member 111 , the pressing wheel 112 is disposed in the middle of the guide member 111 , and the upper end of the guide member 111 is disposed in the blade 8 .

[0061] The pressing wheel 112 is placed below the wire outlet 5, and the heating wire 3 contacts the pressing wheel 112. The pressing wheel 112 is pushed by the guide member 111 to squeeze the heating wire 3 toward the inner wall of the hot-melt pipe 17, so that the heating wire 3 can enter the gap opened by the cutter head 2 to prevent the heating wire 3 from falling off.

[0062] The guide member 111 is slidably connected to the tool holder 1 .

[0063] A return spring 113 is fixedly connected to one side of the guide member 111, and the other end of the return spring 113 is fixedly connected to the tool holder 1. The return spring 113 enables the pressing wheel 112 to keep in contact with the heating wire 3 at all times through the guide member 111, and can generate pressure on the heating wire 3, thereby facilitating the layout of the heating wire 3.

[0064] More specifically, the cutter head 2 includes a cutting portion 201 and a cutter body 202. The cutting portion 201 is placed at the upper end of the cutter body 202 and is fixedly connected to the cutter body 202. One side of the cutting portion 201 is wedge-shaped, so as to achieve the purpose of opening a gap in the inner wall of the hot-melt pipe 17. The cutter body 202 is a rotating body structure with an inclined cross-section, which can better contact with the cutting edge 8 and maintain good friction.

[0065] Furthermore, a tensioning groove 203 is provided at the bottom of the blade body 202. The setting of the tensioning groove 203 makes the lower end of the blade body 202 have a certain toughness, so that when the blade body 202 is installed in the blade edge 8, the outside of the blade body 202 can fit more closely with the side wall of the blade edge 8, thereby improving the stability of the blade body 202 relative to the blade holder 1, and the heating wire 3 passes through the tensioning groove 203.

[0066] In addition, a guide slot 12 is provided in the tool holder 1 , and two sides of the positioning wheel 9 are placed in the guide slot 12 . The positioning wheel 9 can slide along the guide slot 12 , and the positioning wheel 9 can rotate relative to the guide slot 12 .

[0067] An annular wire groove 13 is provided on the outer side of the positioning wheel 9. During use, the heating wire 3 is placed in the annular wire groove 13 to prevent the heating wire 3 from falling off from the outer side of the positioning wheel 9. When the disassembly wrench 6 is used, the positioning wheel 9 slides along the guide groove 12, and the annular wire groove 13 squeezes the heating wire 3, so that the heating wire 3 is fixed relative to the tool holder 1.

[0068] Specifically, a pressing pad 14 is fixedly connected to the middle of the disassembly and assembly wrench 6 , and the pressing pad 14 is made of a tough material to prevent the end of the cutter head 2 from being scratched when the cutter head 2 is pressed.

[0069] One side of the disassembly and assembly wrench 6 is fixedly connected with an insertion rod 15, and the end of the insertion rod 15 can enter the insertion hole 10. When the insertion rod 15 enters the insertion hole 10, the end of the insertion rod 15 will squeeze the positioning wheel 9 to move along the guide groove 12.

[0070] The end of the disassembly wrench 6 is fixedly connected with a pull rod 16, and the end of the pull rod 16 can enter the disassembly groove 7, and then the cutter head 2 is removed. During use, the end of the insertion rod 15 is inserted into the slot hole, and the end of the pull rod 16 is placed in the disassembly groove 7, and then the disassembly wrench 6 is flipped upward. At this time, the pull rod 16 pulls the cutter head 2 upward to take the cutter head 2 out of the cutting edge 8.

[0071] When installing the cutter head 2, place the cutter head 2 into the cutting edge 8, and reversely place the disassembly wrench 6 on the outside of the tool holder 1, insert the end of the insertion rod 15 into the socket, adjust the pressing pad 14 to correspond to the end of the cutter head 2, and then press the disassembly wrench 6 downward to make the cutter head 2 and the tool holder 1 have an interference fit.

[0072] Furthermore, one side of the guide member 111 is fixedly connected to a limit rod 114, and the return spring 113 is sleeved on the outside of the limit rod 114. The limit rod 114 is slidably connected to the tool holder 1. During use, the guide member 111 slides and the limit rod 114 slides synchronously. Due to the setting of the limit rod 114, the return spring 113 will not bend, thereby improving the sliding stability of the guide member 111.

[0073] It should be noted that the tool holder 1 can rotate relative to the clamping mechanism, and at the same time, the tool holder 1 can slide relative to the axis of the clamping mechanism. When the tool holder 1 rotates relative to the clamping mechanism and slides in the direction close to the clamping mechanism, the tool head 2 can open a spiral notch on the inner wall of the hot-melt pipe 17 to facilitate the installation of the heating wire 3. At the same time, the density of the installed heating wire 3 and the length of the installation stage of the heating wire 3 can be controlled by adjusting the sliding speed and sliding amount of the tool holder 1 along the axis.

[0074] In this embodiment, the hot-melt pipe 17 to be processed is fixed by a clamping mechanism, and the hot-melt pipe 17 is made coaxial with the clamping mechanism. Then, the heating wire 3 is installed in the tool holder 1, and the heating wire 3 is extended out of the outlet 5 by a certain distance to facilitate the later connection of the power supply. Then, the cutter head 2 is installed, the cutter head 2 is placed in the cutting edge 8, and the cutting portion 201 is adjusted to be perpendicular to the tool holder 1 so that the cutting portion 201 can contact the inner wall of the hot-melt pipe 17. After the cutter body 202 is placed in the cutting edge 8, the cutter head 2 is further pressed by the disassembly wrench 6, so that the cutter head 2 is interference fit with the cutting edge 8, and due to the setting of the tensioning groove 203, the lower end of the cutter body 202 has an outward squeezing force, so that the contact between the cutter head 2 and the cutting edge 8 is closer.

[0075] At this point, the preparation work is completed, and the hot-melt pipe 17 can be processed. By rotating the tool holder 1 relative to the clamping mechanism and sliding the tool holder 1 in a direction close to the clamping mechanism, a groove is formed on the inner wall of the hot-melt pipe 17 at the end of the cutting portion 201, and the heating wire 3 is squeezed into the formed groove by the pressing wheel 112. By adjusting the sliding speed and sliding amount of the tool holder 1 along the axis, the density of the installed heating wire 3 and the length of the installation stage of the heating wire 3 are controlled. After the installation of the heating wire 3 is completed, the rotation of the tool holder 1 is stopped, and then the cutting portion 201 is adjusted to separate from the inner wall of the hot-melt pipe 17, and the tool holder 1 is withdrawn from the inside of the hot-melt pipe 17. After reserving an appropriate length of the heating wire 3, the heating wire 3 is cut off. At this time, the processing of the hot-melt pipe 17 is completed, and the processed hot-melt pipe 17 can be removed and a new hot-melt pipe 17 to be processed can be installed.

[0076] When the cutter head 2 needs to be replaced, the end of the insertion rod 15 is inserted into the slot, and the end of the pull rod 16 is placed in the disassembly slot 7, and then the wrench 6 is disassembled by flipping it upward. At this time, the pull rod 16 pulls the cutter head 2 upward to take the cutter head 2 out of the blade 8.

[0077] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A processing device for electrofusion pipe fittings, comprising a clamping mechanism and a tool holder (1), characterized in that: Also includes: A cutter head (2), wherein the cutter head (2) is placed on the upper end of the cutter holder (1) and is detachably connected to the cutter holder (1); A heating wire (3), wherein the heating wire (3) passes through the cutter holder (1), and an end of the heating wire (3) is placed at the lower end of the cutter head (2); A wire hole (4), wherein the wire hole (4) is provided at the upper end of the tool holder (1); A wire outlet (5), the wire outlet (5) being opened on one side of the tool holder (1), and the wire outlet (5) being placed at the lower end of the tool head (2); The heating wire (3) passes through the wire hole (4) and the wire outlet (5), and the tool holder (1) and the clamping mechanism are placed on the same axis; A disassembly wrench (6) is detachably connected to the tool holder (1).

2. The electrofusion pipe processing equipment according to claim 1, characterized in that: Also includes: A disassembly groove (7), which is provided on one side of the tool holder (1) and is connected to the wire outlet (5); A knife edge (8) is provided on one side of the knife holder (1) and is connected to the disassembly groove (7); A positioning wheel (9) disposed inside the tool holder (1); A plug hole (10) is provided in the middle of the tool holder (1) and is connected to the wire hole (4); A wire pressing mechanism (11) is arranged inside the tool holder (1).

3. The electrofusion pipe processing equipment according to claim 2, characterized in that: The wire pressing mechanism (11) comprises a guide member (111) and a pressing wheel (112), and the pressing wheel (112) is rotatably connected to the guide member (111); The pressing wheel (112) is placed below the wire outlet (5); The guide member (111) is slidably connected to the tool holder (1); A return spring (113) is fixedly connected to one side of the guide member (111), and the other end of the return spring (113) is fixedly connected to the tool holder (1).

4. The electrofusion pipe processing equipment according to claim 1, characterized in that: The cutter head (2) comprises a cutting portion (201) and a cutter body (202); the cutting portion (201) is disposed at the upper end of the cutter body (202) and is fixedly connected to the cutter body (202).

5. The electrofusion pipe processing equipment according to claim 2, characterized in that: A guide slot (12) is provided in the tool holder (1), and two sides of the positioning wheel (9) are placed in the guide slot (12); An annular wire groove (13) is provided on the outer side of the positioning wheel (9).

6. The electrofusion pipe processing equipment according to claim 2, characterized in that: A pressing pad (14) is fixedly connected to the middle part of the disassembly and assembly wrench (6); A plug rod (15) is fixedly connected to one side of the disassembly wrench (6); The end of the disassembly wrench (6) is fixedly connected with a pull rod (16).

7. The electrofusion pipe processing equipment according to claim 3, characterized in that: One side of the guide member (111) is fixedly connected to a limiting rod (114), the return spring (113) is sleeved on the outside of the limiting rod (114), and the limiting rod (114) is slidably connected to the tool holder (1).

8. The electrofusion pipe processing equipment according to claim 4, characterized in that: The bottom of the blade body (202) is provided with a tensioning groove (203), and the heating wire (3) passes through the tensioning groove (203).

9. The electrofusion pipe processing equipment according to claim 1, characterized in that: The tool holder (1) can rotate relative to the clamping mechanism, and at the same time the tool holder (1) can slide relative to the axis of the clamping mechanism.

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