Crimping machine

Abstract

The invention discloses a crimping machine, and belongs to the technical field of hydraulic equipment, the crimping machine comprises a workbench and a crimping machine body, the crimping machine body is provided with an extrusion channel, a plurality of extrusion rods are slidably mounted in the extrusion channel along the radial direction of the extrusion channel, and an extrusion block is fixed at one end, close to the central axis of the extrusion channel, of each extrusion rod; a plurality of extrusion blocks are arranged on the workbench, the extrusion blocks are arranged in the circumferential direction of the extrusion channel at equal intervals, two supporting rods are fixed to the top face of the workbench and located on the two sides of the extrusion channel correspondingly, and a bearing plate used for bearing a sleeve is installed on the supporting rods; the supporting rod is provided with an adjusting piece used for adjusting the height of the bearing plate. The central axis of the sleeve coincides with the central axis of the extrusion channel, so that the multiple extrusion blocks apply pressure to the sleeve, and the extrusion effect is guaranteed.

Description

[0001] Technology The present application relates to the technical field of hydraulic equipment, and in particular to a crimping machine. Background Art

[0002] The crimping machine is a hydraulic device used to crimp pipe assemblies. It applies a contraction force to the matching metal joint through the crimping machine's mold, and firmly crimps the metal joint onto the core rod.

[0003] For example, a Chinese patent with announcement number CN109910324A discloses a crimping machine, including a crimping machine body, a driving hydraulic pump is fixedly connected to the top of the crimping machine body, the output end of the driving hydraulic pump is connected to the driving hydraulic cylinder, a transmission shaft is welded and fixed on the telescopic shaft of the driving hydraulic cylinder, and the end of the transmission shaft away from the driving hydraulic cylinder is connected to a crimping transmission device through a hinge seat, and a crimping extrusion device is arranged inside the crimping transmission device. When the extrusion movable rod moves along the arc channel to approach the sleeve, it can drive multiple wedge-shaped extrusion blocks to perform a closed extrusion operation. The equal transmission force provided by the crimping transmission device can provide a stable radial extrusion force for the wedge-shaped extrusion block, thereby realizing a sealed crimping connection between the core rod and the sleeve.

[0004] When the core rod and the sleeve are fastened together, the staff needs to first put the sleeve on the outer circumference of the core rod, and then move the sleeve to the middle of several wedge-shaped extrusion blocks so that the wedge-shaped extrusion blocks can apply pressure to the sleeve. However, the staff is prone to deviation in the process of placing the sleeve, and the central axis of the sleeve is not easy to align with the central axis of the several wedge-shaped extrusion blocks, which affects the extrusion effect. Summary of the invention

[0005] In order to facilitate the alignment of the central axis of the sleeve with the central axis of the wedge-shaped extrusion block, the present application provides a crimping machine.

[0006] The present application provides a crimping machine that adopts the following technical solution: A crimping machine comprises a workbench and a crimping machine body, wherein the crimping machine body is provided with an extrusion channel, wherein a plurality of extrusion rods are installed in the extrusion channel along its radial sliding direction, an extrusion block is fixed to one end of the extrusion rod close to the central axis of the extrusion channel, and the plurality of extrusion blocks are arranged at equal intervals along the circumference of the extrusion channel, and two support rods are fixed to the top surface of the workbench, and the two support rods are respectively located on both sides of the extrusion channel, and a supporting plate for supporting a sleeve is installed on the support rod, and an adjusting member for adjusting the height of the supporting plate is provided on the support rod.

[0007] By adopting the above technical solution, the height of the support plate is adjusted according to the diameters of the sleeve and the core rod. When the sleeve and the core rod are placed in the extrusion channel, the end of the core rod is placed on the top surface of one of the support plates, and the end of the sleeve is placed on the top surface of the other support plate. At this time, the core rod and the sleeve are in a horizontal state, and the central axis of the sleeve coincides with the central axis of the extrusion channel, so that several extrusion blocks can apply pressure to the sleeve to ensure the extrusion effect.

[0008] Preferably, the adjusting member includes an adjusting sleeve sleeved on the outer periphery of the support rod, the supporting plate is fixed to the top of the adjusting sleeve, the outer periphery of the adjusting sleeve is provided with a limiting groove, a fixing bolt is installed in the limiting groove, the fixing bolt is threadedly connected to the adjusting sleeve, and the end of the fixing bolt can abut against the outer periphery of the support rod.

[0009] By adopting the above technical solution, the adjusting sleeve is slid vertically to adjust the position of the supporting plate, and then the fixing bolt is rotated so that the end of the fixing bolt is tightly abutted against the outer circumference of the support rod, thereby completing the positioning of the supporting plate.

[0010] Preferably, the top surface of the support plate is set as an arc surface, the outer circumference of the support rod is provided with a limiting groove, the inner circumference of the adjustment sleeve is fixed with a limiting block, and the limiting block is slidably matched with the support rod along the vertical direction through the limiting groove.

[0011] By adopting the above technical solution, the limit block moves vertically in the limit groove, so that the adjustment sleeve always moves vertically, and the position of the support plate does not rotate, so that the outer peripheral surface of the core rod or sleeve fits with the top surface of the support plate.

[0012] Preferably, a mounting plate is fixed to the top of the adjusting sleeve, a control screw and a guide rod are mounted on the mounting plate, a movable plate is sleeved on the outer periphery of the control screw and the guide rod, the movable plate is threadedly matched with the control screw, and a clamping plate is fixed to the top surface of the movable plate.

[0013] By adopting the above technical solution, the control screw is rotated to adjust the position of the clamping plate, so that when the sleeve is located in the extrusion channel and the extrusion block is aligned with the position to be processed of the sleeve, the end face of the core rod fits with the side of the clamping plate close to the extrusion channel. The staff no longer needs to confirm the processing position of the sleeve, thereby improving the processing efficiency.

[0014] Preferably, a first anti-slip sheet is fixed to the side surface of the abutting plate close to the extrusion channel, and a second anti-slip sheet is fixed to the top surface of the supporting plate.

[0015] By adopting the above technical solution, when the sleeve or core rod is placed on the top surface of the supporting plate, the sleeve or core rod fits with the second anti-slip sheet, and the end face of the core rod fits with the first anti-slip sheet on the pressing plate, so that the sleeve or core rod is not easy to slip.

[0016] Preferably, a guide member for guiding the extrusion rod is provided in the extrusion channel, an abutment block is fixed to the end of the extrusion rod away from the extrusion block, a driving ring is rotatably installed in the extrusion channel, a plurality of arc blocks are fixed to the inner circumference of the driving ring, the side of the arc block close to the abutment block is set as an arc surface, the arc block can fit with the abutment block, a rotating component for driving the driving ring to rotate is provided in the extrusion channel, and a reset member for pushing the abutment block to reset is provided in the extrusion channel.

[0017] By adopting the above technical solution, the rotating assembly is used to drive the driving ring to rotate, the driving ring drives the arc block to rotate, the arc block pushes the abutment block to move, so that several abutment blocks move simultaneously along the radial direction of the extrusion channel toward the direction close to the sleeve, the abutment block drives the extrusion block to move synchronously through the extrusion rod, so that the extrusion block extrude the sleeve, and after the extrusion is completed, the driving ring is rotated in the opposite direction, the driving ring drives the arc block to move in the direction away from the abutment block, and the abutment block moves in the direction away from the sleeve under the action of the reset member, so that the extrusion block is separated from the sleeve.

[0018] Preferably, the rotating assembly includes a rotating gear sleeved and fixed on the outer circumferential surface of the driving ring, a driving cylinder is fixed on the top surface of the workbench, a rack is fixed on the end of the piston rod of the driving cylinder, and the rack is meshed with the rotating gear.

[0019] By adopting the above technical solution, the driving cylinder is started, which drives the rack to move, and the rack drives the rotating gear to rotate, thereby driving the driving ring to rotate synchronously.

[0020] Preferably, the abutment block comprises a connecting plate fixed to the end of the extrusion rod, connecting blocks are respectively fixed at both ends of the connecting plate, an abutment roller is rotatably installed between the two connecting blocks, and the outer peripheral surface of the abutment roller can fit with the arc surface of the arc block.

[0021] By adopting the above technical solution, the abutting roller fits the arc surface of the arc block, so that rolling friction occurs between the abutting roller and the arc block, and the friction resistance is small, thereby increasing the service life of the crimping machine.

[0022] Preferably, the reset member comprises a reset spring, one end of the reset spring is fixedly connected to the side of the connecting block away from the extrusion block, and one end of the reset spring away from the connecting block is fixedly connected to the extrusion channel.

[0023] By adopting the above technical solution, when the driving ring rotates in the reverse direction, the abutting roller always fits with the arc block under the elastic force of the return spring, so that the extrusion block moves toward the direction close to the driving ring.

[0024] Preferably, the guide assembly comprises a fixing ring fixed in the extrusion channel, a plurality of guiding through grooves are formed on the inner circumference of the fixing ring, and the extrusion rod is inserted into the guiding through grooves.

[0025] By adopting the above technical solution, the fixing ring and the guide groove limit the extrusion rod, so that the extrusion rod always slides along the radial direction of the extrusion channel.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The height of the support plate is adjusted according to the diameter of the sleeve and the mandrel. When the sleeve and the mandrel are placed in the extrusion channel, the end of the mandrel is placed on the top surface of one of the support plates, and the end of the sleeve is placed on the top surface of the other support plate. At this time, the mandrel and the sleeve are in a horizontal state, and the central axis of the sleeve coincides with the central axis of the extrusion channel, so that several extrusion blocks can apply pressure to the sleeve to ensure the extrusion effect; 2. The driving ring is driven to rotate by the rotating assembly, and the driving ring drives the arc block to rotate. The arc block pushes the abutment block to move, so that several abutment blocks move simultaneously along the radial direction of the extrusion channel toward the direction close to the sleeve. The abutment block drives the extrusion block to move synchronously through the extrusion rod, so that the extrusion block extrudes the sleeve. After the extrusion is completed, the driving ring is rotated in the opposite direction, and the driving ring drives the arc block to move in the direction away from the abutment block. The abutment block moves in the direction away from the sleeve under the action of the reset member, so that the extrusion block is separated from the sleeve; 3. Turn the control screw to adjust the position of the clamping plate so that when the sleeve is located in the extrusion channel and the extrusion block is aligned with the position to be processed of the sleeve, the end face of the mandrel fits with the side of the clamping plate close to the extrusion channel. The staff no longer needs to confirm the processing position of the sleeve, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the crimping machine according to an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of the crimping machine body in the crimping machine of an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of the abutment block in the crimping machine of the embodiment of the present application.

[0030] Figure 4 It is a cross-sectional view of an adjusting sleeve in a crimping machine according to an embodiment of the present application.

[0031] Reference numerals: 1, workbench; 11, crimping machine body; 12, extrusion channel; 13, extrusion rod; 14, extrusion block; 15, fixing ring; 16, guide groove; 17, cavity; 2, driving ring; 21, arc block; 22, abutment block; 221, connecting plate; 222, connecting block; 223, abutment roller; 224, return spring; 23, rack; 24, mounting groove; 25, rotating gear; 26 , driving cylinder; 3, supporting block; 31, supporting rod; 32, adjusting sleeve; 321, limiting block; 33, supporting rod; 34, supporting plate; 341, anti-skid sheet 2; 35, limiting groove; 36, limiting through groove; 37, fixing bolt; 4, mounting plate; 41, mounting block; 42, control screw; 421, rotating handle; 43, guide rod; 44, moving plate; 45, tightening plate; 451, anti-skid sheet 1. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application embodiment discloses a crimping machine. Figure 1 and Figure 2 The crimping machine includes a workbench 1 and a crimping machine body 11 fixed to the top surface of the workbench 1. An extrusion channel 12 is provided on the crimping machine body 11, and a plurality of extrusion rods 13 are installed in the extrusion channel 12 to slide radially along the extrusion channel 12. An extrusion block 14 is fixed to one end of the extrusion rod 13 close to the central axis of the extrusion channel 12, and a plurality of extrusion blocks 14 are arranged at equal intervals along the circumference of the extrusion channel 12. A fixing ring 15 is fixed in the extrusion channel 12, and the central axis of the fixing ring 15 is arranged colinearly with the central axis of the extrusion channel 12. A plurality of guide grooves 16 are provided on the inner circumference of the fixing ring 15, and the extrusion rod 13 is inserted into the guide groove 16, and the extrusion rod 13 slides radially along the extrusion channel 12 through the guide groove 16.

[0034] Reference Figure 2 and Figure 3 , a cavity 17 is provided in the extrusion channel 12, a driving ring 2 is rotatably installed in the cavity 17, and the central axis of the driving ring 2 is arranged colinearly with the central axis of the extrusion channel 12. A plurality of arc blocks 21 are fixed to the inner circumference of the driving ring 2, and the side of the arc block 21 close to the abutment block 22 is arranged as an arc surface. An abutment block 22 is fixed to the end of the extrusion rod 13 away from the extrusion block 14, and the abutment block 22 includes a connecting plate 221 fixed to the end of the extrusion rod 13, and connecting blocks 222 are respectively fixed at both ends of the connecting plate 221. An abutment roller 223 is rotatably installed between the two connecting blocks 222, and the outer circumference of the abutment roller 223 can fit with the arc surface of the arc block 21. A return spring 224 is fixed to the side of the connecting block 222 away from the extrusion block 14, and the end of the return spring 224 away from the connecting block 222 is fixedly connected to the inner circumference of the cavity 17.

[0035] Reference Figure 2 and Figure 3 The side of the crimping machine body 11 is provided with a mounting slot 24, and the crimping machine body 11 is slidably mounted with a rack 23 along the length direction of the workbench 1 through the mounting slot 24. A rotating gear 25 is sleeved and fixed on the outer circumference of the driving ring 2, and the rack 23 and the rotating gear 25 are meshed with each other. A driving cylinder 26 is fixed on the top surface of the workbench 1, and the end of the piston rod of the driving cylinder 26 is fixedly connected to the rack 23.

[0036] Start the driving cylinder 26, which drives the rack 23 to move, and the rack 23 drives the rotating gear 25 to rotate, thereby driving the driving ring 2 to rotate, and the driving ring 2 drives the arc block 21 to rotate, and the arc block 21 fits with the abutment roller 223, thereby pushing the abutment roller 223 to move toward the direction close to the sleeve, so that several extrusion blocks 14 move toward the direction close to the sleeve at the same time, and the extrusion blocks 14 extrude the sleeve to achieve the connection between the sleeve and the core rod.

[0037] Reference Figure 1 and Figure 4 , two support blocks 3 are fixed on the top surface of the workbench 1, and a vertical support rod 31 is fixed on the top surface of the support block 3. The two support rods 31 are respectively located on both sides of the extrusion channel 12. An adjusting sleeve 32 is sleeved on the outer periphery of the support rod 31, and a supporting rod 33 is fixed on the top of the adjusting sleeve 32, and a supporting plate 34 is fixed on the top of the supporting rod 33. The top surface of the supporting plate 34 is set as an arc surface, and an anti-slip sheet 341 is fixed on the inner arc surface of the supporting plate 34. A limiting groove 35 is provided on the outer periphery of the support rod 31, and a limiting block 321 is fixed on the inner periphery of the adjusting sleeve 32. The limiting block 321 slides and cooperates with the support rod 31 vertically through the limiting groove 35. A limiting through groove 36 is provided on the outer periphery of the adjusting sleeve 32, and a fixing bolt 37 is inserted in the limiting through groove 36. The fixing bolt 37 is threadedly connected with the adjusting sleeve 32, and the end of the fixing bolt 37 can abut against the outer periphery of the support rod 31.

[0038] Slide the adjusting sleeve 32 vertically to adjust the height of the supporting plate 34, and then rotate the fixing bolt 37 so that the end of the fixing bolt 37 is in close contact with the outer circumferential surface of the support rod 31 to position the height of the supporting plate 34, and then place the sleeve and the core rod on the top surfaces of the two supporting plates 34 respectively, so that the core rod and the sleeve are in a horizontal state, and the central axis of the sleeve coincides with the central axis of the extrusion channel 12, so that several extrusion blocks 14 can evenly apply pressure to the sleeve to ensure the extrusion effect.

[0039] Reference Figure 1 and Figure 4, a horizontally arranged mounting plate 4 is fixed on the top of the adjusting sleeve 32, and two mounting blocks 41 are fixed on the top surface of the mounting plate 4. A horizontally arranged control screw 42 and a guide rod 43 are installed between the two mounting blocks 41, and the control screw 42 is rotatably connected to the mounting block 41, and a rotating handle 421 is fixed to the end of the control screw 42 away from the adjusting sleeve 32. A movable plate 44 is sleeved on the outer periphery of the control screw 42 and the guide rod 43, and the movable plate 44 and the control screw 42 are threadedly matched. A tightening plate 45 is fixed on the top surface of the movable plate 44, and an anti-slip sheet 451 is fixed on the side of the tightening plate 45 close to the extrusion channel 12. The control screw 42 is rotated to adjust the position of the tightening plate 45, so that when the sleeve is located in the extrusion channel 12 and the extrusion block 14 is aligned with the position to be processed of the sleeve, the end face of the mandrel fits with the anti-slip sheet 451, and the staff does not need to confirm the processing position of the sleeve, thereby improving the processing efficiency.

[0040] The implementation principle of a crimping machine in an embodiment of the present application is as follows: the height of the support plate 34 is adjusted according to the diameters of the sleeve and the mandrel. When the sleeve and the mandrel are placed in the extrusion channel 12, the end of the mandrel is placed on the top surface of one of the support plates 34, and the end of the sleeve is placed on the top surface of the other support plate 34. At this time, the mandrel and the sleeve are in a horizontal state, and the central axis of the sleeve coincides with the central axis of the extrusion channel 12, so that several extrusion blocks 14 can apply pressure to the sleeve to ensure the extrusion effect.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A crimping machine, comprising a workbench (1) and a crimping machine body (11), characterized in that: The crimping machine body (11) is provided with an extrusion channel (12), and a plurality of extrusion rods (13) are installed in the extrusion channel (12) in a radially sliding manner. An extrusion block (14) is fixed to one end of the extrusion rod (13) close to the central axis of the extrusion channel (12), and the plurality of extrusion blocks (14) are arranged at equal intervals along the circumference of the extrusion channel (12). Two support rods (31) are fixed to the top surface of the workbench (1), and the two support rods (31) are respectively located on both sides of the extrusion channel (12). A support plate (34) for supporting a sleeve is installed on the support rod (31), and an adjusting member for adjusting the height of the support plate (34) is arranged on the support rod (31).

2. A crimping machine according to claim 1, characterized in that: The adjusting member comprises an adjusting sleeve (32) sleeved on the outer circumference of the supporting rod (31); the supporting plate (34) is fixed to the top of the adjusting sleeve (32); a limiting groove (36) is provided on the outer circumference of the adjusting sleeve (32); a fixing bolt (37) is installed in the limiting groove (36); the fixing bolt (37) is threadedly connected to the adjusting sleeve (32); and the end of the fixing bolt (37) can abut against the outer circumference of the supporting rod (31).

3. A crimping machine according to claim 2, characterized in that: The top surface of the support plate (34) is arranged as an arc surface, a limiting groove (35) is provided on the outer circumference of the support rod (31), a limiting block (321) is fixed on the inner circumference of the adjustment sleeve (32), and the limiting block (321) is slidably matched with the support rod (31) in the vertical direction through the limiting groove (35).

4. A crimping machine according to claim 3, characterized in that: A mounting plate (4) is fixed on the top of the adjusting sleeve (32), a control screw (42) and a guide rod (43) are mounted on the mounting plate (4), a movable plate (44) is sleeved on the outer periphery of the control screw (42) and the guide rod (43), the movable plate (44) and the control screw (42) are threadedly matched, and a clamping plate (45) is fixed on the top surface of the movable plate (44).

5. A crimping machine according to claim 4, characterized in that: A first anti-slip sheet (451) is fixed to the side surface of the abutting plate (45) close to the extrusion channel (12), and a second anti-slip sheet (341) is fixed to the top surface of the supporting plate (34).

6. A crimping machine according to claim 1, characterized in that: A guide member for guiding the extrusion rod (13) is arranged in the extrusion channel (12); an abutment block (22) is fixed to one end of the extrusion rod (13) away from the extrusion block (14); a driving ring (2) is rotatably mounted in the extrusion channel (12); a plurality of arc blocks (21) are fixed to the inner circumference of the driving ring (2); the side surface of the arc block (21) close to the abutment block (22) is arranged as an arc surface; the arc block (21) can fit with the abutment block (22); a rotating assembly for driving the driving ring (2) to rotate is arranged in the extrusion channel (12); and a reset member for pushing the abutment block (22) to reset is arranged in the extrusion channel (12).

7. A crimping machine according to claim 6, characterized in that: The rotating assembly comprises a rotating gear (25) sleeved and fixed on the outer peripheral surface of the driving ring (2); a driving cylinder (26) is fixed on the top surface of the workbench (1); a rack (23) is fixed on the end of the piston rod of the driving cylinder (26); and the rack (23) and the rotating gear (25) are meshed with each other.

8. The crimping machine according to claim 6, characterized in that: The abutment block (22) comprises a connection plate (221) fixed to the end of the extrusion rod (13), and connection blocks (222) are respectively fixed at both ends of the connection plate (221). An abutment roller (223) is rotatably mounted between the two connection blocks (222), and the outer peripheral surface of the abutment roller (223) can fit with the arc surface of the arc block (21).

9. A crimping machine according to claim 8, characterized in that: The return member comprises a return spring (224), one end of the return spring (224) being fixedly connected to a side of the connection block (222) away from the extrusion block (14), and one end of the return spring (224) being fixedly connected to the extrusion channel (12) away from the connection block (222).

10. A crimping machine according to claim 6, characterized in that: The guide assembly comprises a fixed ring (15) fixed in the extrusion channel (12), the inner circumference of the fixed ring (15) is provided with a plurality of guide grooves (16), and the extrusion rod (13) is inserted into the guide grooves (16).

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