Joint pressing machine

Abstract

The invention relates to the field of expansion pipe connecting equipment, in particular to a joint pressing machine which comprises a base, a joint clamping mechanism arranged on the base and two pipe clamping mechanisms arranged on the base. The connector clamping mechanism comprises a first sliding seat, a material carrying seat, a material pressing seat, a pipe expanding seat and the like, and the pipe clamping mechanism comprises a second sliding seat, a material clamping block and the like and is further provided with a lifting driving assembly, a rotating driving assembly and the like. The material carrying seat, the pipe expanding seat, the material clamping block and the like have specific structures and distribution relations, and accurate positioning and matching of the connector and the pipe can be achieved. The method has the effect of improving the working efficiency.

Description

Technical Field

[0001] This application relates to the field of tube expansion connection equipment, and more particularly to a joint crimping machine. Background Technology

[0002] The connection between the fittings and the hose is a critical step in the assembly of a piping system. It not only relates to the sealing and stability of the piping system, but also directly affects the efficiency and safety of the entire industrial production process.

[0003] Previously, the connection of connectors and hoses relied heavily on manual labor. Workers manually aligned and secured the connectors and hoses, a method that was inefficient and prone to inconsistencies due to human error. In recent years, automated pressing equipment has gradually entered the market and gained some popularity. Currently, the mainstream solutions include hydraulic pressing machines, which use hydraulic cylinders to drive the mold to complete the connection; and pneumatic pressing clamps, which utilize gas pressure for rapid clamping response.

[0004] However, these existing technologies have many shortcomings. Since the expansion and pressing actions are separate, the workpiece needs to be clamped multiple times, which seriously affects the work efficiency. Therefore, providing a pressing machine that improves work efficiency is an urgent problem to be solved. Summary of the Invention

[0005] To improve work efficiency, this application provides a joint pressing machine.

[0006] The joint pressing machine provided in this application adopts the following technical solution: A joint pressing machine includes a base, a joint clamping mechanism disposed on the base, and two pipe clamping mechanisms disposed on the base. The connector clamping mechanism includes: A first sliding seat is slidably connected to the base along a first direction; A material carrier fixedly connected to the first sliding seat; A pressure seat is slidably connected to the first sliding seat along the second direction, and the material carrier and the pressure seat are distributed facing each other in the second direction; In addition, two expansion tube seats are fixedly connected to the first sliding seat. In the third direction, the material carrier is located between the two expansion tube seats, and the end of the expansion tube seat away from the material carrier is the expansion tube head. The expansion tube head has a circular cross-section perpendicular to the third direction. In the third direction, the diameter of the expansion tube head gradually decreases towards the side away from the first sliding seat. In the first direction, the material carrier and the expansion tube seat are spaced apart. When the connector is located on the material carrier, the central axis of the connector's nozzle port and the central axis of the expansion tube head are at the same height in the second direction. In the third direction, the joint clamping mechanism is located between the two pipe clamping mechanisms, and the pipe clamping mechanism is slidably connected to the base in the third direction.

[0007] By adopting the above technical solution, when the joint pressing machine is working, the joint can be placed on the material carrier, and the pressing seat can be driven to slide along the second direction to cooperate with the material carrier to clamp the joint. The first sliding seat can slide and adjust its position on the base along the first direction. When it is in the tube expansion position, the tube clamping mechanism moves along the third direction to bring the tube closer to the tube expansion head. The tube expansion head on the tube expansion seat has a circular cross-section perpendicular to the third direction and the diameter gradually decreases, so the tube can be smoothly inserted for tube expansion. When it is in the tube connection position, the tube clamping mechanism moves again along the third direction to bring the tube closer to the joint and achieve docking. Since the material carrier and tube expansion seat are distributed at intervals and the central axis of the joint tube connection port is at the same height as the central axis of the tube expansion head in the second direction, the precise height alignment between the components is ensured. Meanwhile, the joint clamping mechanism is located between the two pipe clamping mechanisms in the third direction. The pipe clamping mechanism can slide along the third direction, which allows the expansion and pressing operations to be completed continuously on the same equipment, avoiding multiple clamping of the workpiece, improving work efficiency, and ensuring the stability and accuracy of the connection process between the joint and the pipe, thereby improving the work efficiency and quality of the entire pipeline system assembly.

[0008] Optionally, the material carrier has a recessed material loading groove on the side near the pressure seat, and the material loading groove has a semi-circular cross-section perpendicular to the third direction with an opening facing the pressure seat; the central axis of the material loading groove and the central axis of the expansion head are at the same height in the second direction.

[0009] By adopting the above technical solution, the material loading trough can provide a stable placement space for the joint.

[0010] Optionally, the tube clamping mechanism includes: The second sliding seat is slidably connected to the base along a third direction; And, two clamping blocks, which are distributed sequentially in the second direction, one of the clamping blocks being an upper clamping block and the other being a lower clamping block. The lower clamping block is fixedly connected to the second sliding seat, and the upper clamping block can slide in the second direction to change the distance between the two clamping blocks in the second direction. The two clamping blocks have concave clamping grooves on their sides that are close to each other. The clamping grooves are semi-circular with openings facing the other clamping block along a cross section perpendicular to a third direction. When the first sliding seat is in the expanded tube position, the clamping groove on the lower clamping block and the expanded tube head are coaxial; When the first sliding seat is in the pipe-connecting position, the clamping groove on the lower clamping block and the loading groove are coaxial.

[0011] By adopting the above technical solution, the second sliding seat is slidably connected to the base along the third direction, allowing adjustment of the pipe's position in that direction. Two clamping blocks are distributed sequentially in the second direction; the lower clamping block is fixed, while the upper clamping block can slide to change its spacing. The clamping grooves on their adjacent surfaces are semi-circular, better adapting to the pipe and stably clamping it. When the first sliding seat is in the expansion position, the clamping groove on the lower clamping block and the expansion head are coaxial, facilitating accurate insertion of the expansion head into the pipe for expansion. When the first sliding seat is in the connector position, the clamping groove on the lower clamping block and the loading groove are coaxial, ensuring accurate connection between the pipe and the connector. This improves the accuracy and stability of the pipe expansion and connection process, thereby enhancing the working efficiency and product quality of the connector pressing machine.

[0012] Optionally, the tube clamping mechanism further includes two limiting seats, one of which is an upper limiting seat connected to the upper clamping block, and the other limiting seat is a lower limiting seat connected to the lower clamping block; in the second direction, the two clamping blocks are located between the two limiting seats. The two limiting seats have a first limiting groove formed inward on their adjacent sides. The length of the first limiting groove is parallel to the first direction. The clamping block has a limiting strip that is adapted to the first limiting groove. The groove wall of the first limiting groove is used to guide the limiting strip to move in the first limiting groove along the first direction. Along the first direction, one end of the first limiting groove passes through the side of the limiting seat away from the second sliding seat.

[0013] By adopting the above technical solution, the setting of the limiting seat can utilize its concave first limiting groove and the limiting strip of the clamping block to make the clamping block move stably in the first direction along a set path, thereby improving the installation efficiency of the equipment.

[0014] Optionally, in the second direction, the width of the first limiting groove on the limiting seat gradually decreases toward the other limiting seat.

[0015] By adopting the above technical solution, the limiting seat and the clamping block can be fixed in the second direction.

[0016] Optionally, a stop block is fixedly connected to one side of the two limiting seats that are close to each other. In the first direction, the stop block is located on the side of the clamping block that is close to the second sliding seat. When the clamping block slides along the first direction to abut against the stop block and the first sliding seat is in the tube position, the clamping groove on the lower clamping block and the loading groove are coaxial.

[0017] By adopting the above technical solution, the stop blocks fixed on one side of the limit seats can play a positioning role, ensuring that the clamping block slides to the correct position. When the first sliding seat is in the pipe position, the clamping groove and the loading groove on the lower clamping block are coaxial, thereby ensuring that the pipe and the connector are accurately connected and the assembly is completed.

[0018] Optionally, a base plate perpendicular to the first direction is fixedly connected to the base, and the second sliding seat is slidably connected to the front plate surface of the base plate along a third direction; The tube clamping mechanism further includes a lifting drive assembly, which includes: A first mounting base, one end of which is fixedly connected to the second sliding base, and the other end of which extends beyond the substrate in a first direction to the rear surface of the substrate. The first cylinder has one end hinged around the first axis to the end of the first mounting base away from the second sliding base; A second mounting base is fixedly connected to the second sliding plate. In the second direction, the second mounting base is located on the side of the upper clamping block away from the lower clamping block. A first connecting rod has an integrally formed first hinge segment and a second hinge segment. The connection between the first hinge segment and the second hinge segment is a hinge part. The hinge part is rotatably connected to the second mounting base about a second axis. The end of the first hinge segment away from the hinge part is rotatably connected to the other end of the first cylinder about a third axis. And, a second link, one end of which is rotatably connected to the end of the second hinge segment away from the hinge about a fourth axis, and the other end of which is rotatably connected to the upper limit seat about a fifth axis; The first axis, second axis, third axis, fourth axis, and fifth axis are all parallel to the third direction.

[0019] By adopting the above technical solution, a base plate perpendicular to the first direction is fixed on the base, and the second sliding seat slides along the third direction on the front surface of the base plate, so that the position of the tube material in the third direction can be adjusted; in the lifting drive assembly, the first mounting seat is connected to the second sliding seat and extends to one side of the rear surface of the base plate, and the first cylinder can drive the upper clamping block to slide in the second direction through the transmission of the first connecting rod and the second connecting rod, so as to realize the adjustment of the distance between the two clamping blocks, thereby facilitating the clamping and loosening of the tube material and improving the operation convenience and working efficiency of the joint pressing machine.

[0020] Optionally, the tube clamping mechanism further includes a rotation drive assembly, the rotation drive assembly comprising: Two rotating connecting seats are fixedly connected to the base plate, and the two rotating connecting seats are spaced apart in the third direction; A screw parallel to a third direction, with each end of the screw passing through a rotating connecting seat and rotatably connected to the rotating connecting seat about its own axis; And a lead screw nut, which is threadedly connected to the screw and fixedly connected to the second sliding plate.

[0021] By adopting the above technical solution, during the rotation of the screw around its own axis on the rotating connecting seat, since the screw nut is threadedly connected to the screw and fixedly connected to the second sliding plate, the rotation of the screw will cause the screw nut to move along the screw axis, thereby driving the second sliding seat to slide in the third direction upward, realizing the adjustment of the pipe material in the third direction upward, which can make the pipe material in a suitable initial position, which helps the subsequent pipe expansion and connection operations to proceed smoothly.

[0022] Optionally, the rotation drive assembly further includes: A motor fixedly connected to the base is located on the side of the base plate away from the second sliding plate in a first direction; Two synchronous pulleys, one of which is coaxially and fixedly connected to the output end of the motor, and the other synchronous pulley is coaxially and fixedly connected to the screw. And, a timing belt tensioned and wound between the two timing pulleys.

[0023] By adopting the above technical solution, when the motor in the rotary drive assembly starts, it drives the screw to rotate around its own axis on the rotary connecting seat through the transmission of the synchronous pulley and synchronous belt, thereby improving the automation level of the equipment.

[0024] In summary, this application includes at least one of the following beneficial technical effects: Integrating tube expansion and pressing operations avoids multiple clamping of workpieces and improves work efficiency; Through the coordinated operation of various components and precise height and coaxiality settings, the connection between the joint and the pipe is ensured to proceed smoothly. Reduce manual operations, minimize the impact of human factors, and improve the consistency of joint and pipe connections. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the device structure after removing the outer casing in the embodiments of this application; Figure 3 This is a schematic diagram of the joint clamping mechanism in the embodiments of this application; Figure 4 This is a partial structural schematic diagram of the pipe clamping mechanism in the embodiments of this application; Figure 5This is a first-view structural schematic diagram of the tube clamping mechanism in an embodiment of this application; Figure 6 This is a structural schematic diagram of the tube clamping mechanism from a second perspective in an embodiment of this application; Figure 7 This is a schematic diagram of the rotation drive assembly in an embodiment of this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Base; 11. Base plate; 12. Gantry frame; 13. Outer shell; 2. Joint clamping mechanism; 21. First sliding seat; 22. Material carrier; 221. Material carrier trough; 23. Pressing seat; 24. Tube expansion seat; 241. Tube expansion head; 25. Second cylinder; 26. Third cylinder; 3. Tube clamping mechanism; 31. Second sliding seat; 32. Clamping block; 32a. Upper clamping block; 32b. Lower clamping block; 321. Clamping trough; 322. Limiting strip; 33. Limiting seat; 33a. Upper limiting seat; 33b. Lower limit seat; 331. First limit groove; 332. Stop block; 34. Lifting drive assembly; 341. First mounting seat; 342. First cylinder; 343. Second mounting seat; 344. First connecting rod; 3441. First hinge section; 3442. Second hinge section; 3443. Hinge part; 345. Second connecting rod; 35. Rotation drive assembly; 351. Rotation connecting seat; 352. Screw; 353. Lead screw nut; 354. Motor; 355. Synchronous pulley; 356. Synchronous belt; 4. Base plate. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail. For ease of description, this application introduces directional terms such as first direction, second direction, and third direction to form a three-dimensional reference direction. The directional terms used, such as "first direction, second direction, and third direction", can be specifically referred to in the figure, where X represents the first direction, Y represents the second direction, and Z represents the third direction. The first direction, second direction, and third direction are perpendicular to each other, and the first direction is preferably a vertical direction.

[0028] This application discloses a connector crimping machine. (Refer to...) Figure 1 and Figure 2 The joint pressing machine includes a base 1, a joint clamping mechanism 2, and two pipe clamping mechanisms 3. The joint clamping mechanism 2 and the two pipe clamping mechanisms 3 are all mounted on the base 1, and in the third direction, the joint clamping mechanism 2 is located between the two pipe clamping mechanisms 3. The base 1 includes a base plate 11, a gantry frame 12 fixedly connected to the base plate 11, and a shell 13 fixedly connected to the outer periphery of the base plate 11 and the gantry frame 12.

[0029] Reference Figure 2 and Figure 3The connector clamping mechanism 2 can move along the first direction on the base 1. Specifically, the connector clamping mechanism 2 includes a first sliding seat 21, a material carrier 22, a pressure seat 23, and two expansion tube seats 24. The first sliding seat 21 is slidably connected to the base plate 11 in the base 1 along the first direction. It can adopt the structure of a guide rail slider. The guide rail is fixed on the base plate 11, and the slider is connected to the first sliding seat 21, so that the first sliding seat 21 can slide smoothly on the base 1 along the first direction. In order to drive the first sliding seat 21 to move, a second cylinder 25 is fixedly connected between the first sliding seat 21 and the base plate 11. The driving direction of the second cylinder 25 is parallel to the first direction, so as to drive the first sliding seat 21 to move along the first direction. The material carrier 22 is fixedly connected to the first sliding seat 21, and the pressure seat 23 is slidably connected to the first sliding seat 21 along the second direction. The material carrier 22 and the pressure seat 23 are distributed opposite each other in the second direction. A third cylinder 26 is fixedly connected between the pressure seat 23 and the first sliding seat 21. The driving direction of the third cylinder 26 is parallel to the second direction. In the second direction, the third cylinder 26 is located on the side of the pressure seat away from the material carrier 22. That is, the third cylinder 26 is located above the pressure seat 23. The material carrier 22 has a recessed material loading groove 221 on the side near the pressure seat 23. Specifically, the top wall of the material carrier 22 has a recessed material loading groove 221. The material loading groove 221 extends through the third direction. Its cross-section perpendicular to the third direction is semi-circular, opening towards the pressure seat 23. The cross-section of the material loading groove 221 perpendicular to the first direction can be designed according to the shape of the connector to provide a stable placement space for the connector. The material carrier 22 can be bolted to the first sliding seat 21 to ensure connection stability. In use, the connector is placed in the material loading groove 221, and the third cylinder 26 drives the pressure seat 23 to descend, clamping the connector.

[0030] Reference Figure 2 and Figure 3 The expansion tube seat 24 is fixedly connected to the first sliding seat 21. In the third direction, the material carrier 22 is located between the two expansion tube seats 24, and the end of the expansion tube seat 24 away from the material carrier 22 is the expansion tube head 241. The expansion tube head 241 has a circular cross-section perpendicular to the third direction. In the third direction, the diameter of the expansion tube head 241 gradually decreases towards the side away from the first sliding seat 21. This conical design facilitates smoother insertion into the tube for expansion operations. The expansion tube seat 24 can be fixed to the first sliding seat 21 by welding or bolting. When the joint is located at the material carrier 22, the central axis of the joint's pipe port and the central axis of the expansion tube head 241 are at the same height in the second direction. That is, the central axis of the material carrier 221 and the central axis of the expansion tube head 241 are both parallel to the third direction and at the same height in the second direction.

[0031] The material carrier 22, the pressure seat 23, and the tube expander 24 work together. The material carrier 22 supports the joint, the pressure seat 23 clamps the joint, and the tube expander 244's expander head 241 expands the tube. During operation, the first sliding seat 21 slides in the first direction to adjust its position. When in the tube expansion position, the tube clamping mechanism 3 is moved along the third direction, that is, the tube is moved closer to the tube expansion head 241 along the third direction. The tube expansion head 241 can be inserted into the tube for tube expansion, so that the tube can be better connected to the connector later. When in the connector position, the pipe clamping mechanism 3 is moved along the third direction, which means the pipe is brought closer to the connector along the third direction, and the pipe can be connected with the connector. During this process, the precise height alignment between the components ensures the smooth operation of the whole process.

[0032] Reference Figure 2 Specifically, a base plate 4 perpendicular to the first direction is fixedly connected to the gantry 12 on the base 1. The base plate 4 and the first sliding seat 21 are located on the same side of the gantry 12, and in the first direction, the base plate 4 is located between the first sliding seat 21 and the gantry 12.

[0033] Reference Figure 2 and Figure 4 The tube clamping mechanism 3 includes a second sliding seat 31, two clamping blocks 32, two limiting seats 33, a lifting drive assembly 34, and a rotation drive assembly 35. The second sliding seat 31 is slidably connected to the front plate surface of the substrate 4 in the third direction. The first sliding seat 21 is also located on one side of the front plate surface of the substrate 4. The second sliding seat 31 is connected to the substrate 4 by a guide rail slider structure so as to adjust the position of the tube in the third direction by sliding the second sliding seat 31 on the substrate 4, so as to perform tube expansion operation and tube connection operation. In the first direction, the clamping block 32 and the limiting seat 33 are both located on the side of the second sliding seat 31 away from the substrate 4; the two clamping blocks 32 are distributed sequentially in the second direction, one of which is the upper clamping block 32a and the other is the lower clamping block 32b; the lower clamping block 32b is fixedly connected to the second sliding seat 31, the upper clamping block 32a is located above the lower clamping block 32b, and the upper clamping block 32a can slide in the second direction to change the distance between the two clamping blocks 32 in the second direction; the sides of the two clamping blocks 32 that are close to each other are recessed to form clamping grooves 321, and the clamping grooves 321 are semi-circular with openings facing the other clamping block 32 along a cross section perpendicular to the third direction. This semi-circular design fits the shape of the tube and facilitates better clamping of the tube. When the lower clamping block 32b and the upper clamping block 32a approach each other, the two clamping grooves 321 can jointly wrap around the pipe material, providing a stable clamping force. To improve the clamping force, a flexible anti-slip pad can also be attached inside the clamping groove 321. When the first sliding seat 21 is in the expansion position, the clamping groove 321 on the lower clamping block 32b and the expansion head 241 are coaxial; when the first sliding seat 21 is in the connecting position, the clamping groove 321 on the lower clamping block 32b and the loading groove 221 are coaxial. This arrangement ensures the precise alignment of the pipe material during the expansion and docking process.

[0034] Reference Figure 4 There are two limiting seats 33, one of which is an upper limit seat 33a connected to the upper clamping block 32a, and the other is a lower limit seat 33b connected to the lower clamping block 32b. In the second direction, the two clamping blocks 32 are located between the two limiting seats 33. The lower limit seat 33b is fixedly connected to the second sliding seat 31, and the upper limit seat 33a is slidably connected to the second sliding seat 31 in the first direction through a guide rail slider structure. Two limiting seats 33 are recessed on their adjacent sides to form a first limiting groove 331. The length of the first limiting groove 331 is parallel to the first direction. A limiting strip 322, adapted to the first limiting groove 331, is protruding from the clamping block 32. The groove wall of the first limiting groove 331 is used to guide the limiting strip 322 to move within the first limiting groove 331 along the first direction. Along the first direction, one end of the first limiting groove 331 penetrates the side of the limiting seat 33 away from the second sliding seat 31. Specifically, the first limiting groove 331 penetrates the side of the limiting seat 33 away from the substrate 4. In the second direction, the width of the first limiting groove 331 on the limiting seat 33 gradually decreases towards the other limiting seat 33, that is, the cross-sections of the first limiting groove 331 and the limiting strip 322 are adapted to each other in a dovetail shape. Two limiting seats 33 are fixedly connected to a stop block 332 on one side that is close to each other. In the first direction, the stop block 332 is located on the side of the clamping block 32 that is close to the second sliding seat 31. When the clamping block 32 slides along the first direction to abut against the stop block 332 and the first sliding seat 21 is in the pipe position, the clamping groove 321 and the loading groove 221 on the lower clamping block 32b are coaxial. The stop block 332 plays a positioning role, ensuring that the clamping block 32 slides to the correct position.

[0035] Reference Figure 5 , Figure 6 and Figure 7 The lifting drive assembly 34 includes a first mounting base 341, a first cylinder 342, a second mounting base 343, a first connecting rod 344, and a second connecting rod 345. In the second direction, the first mounting base 341 is located between the base plate 4 and the bottom plate 11. One end of the first mounting base 341 is fixedly connected to the second sliding base 31, and the other end extends beyond the base plate 4 in the first direction to the rear plate side of the base plate 4. The first cylinder 342 is located on one side of the rear plate of the base plate 4. One end of the first cylinder 342 is hinged around the first axis to the end of the first mounting base 341 away from the second sliding base 31, and the other end is hinged to the first connecting rod 344. The first cylinder 342 can provide power to drive the subsequent connecting rod movement. The second mounting base 343 is fixedly connected to the second sliding plate and is located on the side of the upper clamping block 32a away from the lower clamping block 32b in the second direction. That is, the second mounting base 343 is located above the upper clamping block 32a. The first connecting rod 344 has an integrally formed first hinge segment 3441 and second hinge segment 3442, and their connection is a hinge part 3443. The hinge part 3443 is rotatably connected to the second mounting base 343 around the second axis. One end of the first hinge segment 3441 away from the hinge part 3443 is rotatably connected to the first cylinder 342 around the third axis. One end of the second hinge segment 3442 away from the hinge part 3443 is rotatably connected to one end of the second connecting rod 345 around the fourth axis. The other end of the second connecting rod 345 is rotatably connected to the upper limit seat 33a around the fifth axis. The first axis, second axis, third axis, fourth axis, and fifth axis are all parallel to the third direction. When the first cylinder 342 extends or retracts, the upper clamping block 32a slides in the second direction through the transmission of the first connecting rod 344 and the second connecting rod 345, thereby adjusting the distance between the two clamping blocks 32.

[0036] Reference Figure 6 and Figure 7The rotation drive assembly 35 includes two rotating connecting seats 351, a screw 352, a lead screw nut 353, a motor 354, two synchronous pulleys 355, and a synchronous belt 356 connected between the two synchronous pulleys 355. The two rotating connecting seats 351 are fixedly connected to the front plate surface of the base plate 4 and are spaced apart in the third direction. The screw 352 is parallel to the third direction, with each end of it passing through a rotating connecting seat 351 and rotatably connected to the rotating connecting seat 351 around its own axis via bearings. The lead screw nut 353 is threadedly connected to the screw 352 and fixedly connected to the second sliding plate. During the rotation of the screw 352, the second sliding plate moves in the third direction. The motor 354 is fixedly connected to the gantry 12 of the base 1, and in the first direction, it is located on the side of the gantry 12 away from the second sliding plate. One synchronous pulley 355 is coaxially fixedly connected to the output end of the motor 354, and the other synchronous pulley 355 is coaxially fixedly connected to the screw 352. The central axes of the two synchronous pulleys 355 are parallel to the third direction. The synchronous belt 356 is tensioned and wound between the two synchronous pulleys 355. When the motor 354 starts, the screw 352 is driven to rotate through the transmission of the synchronous pulleys 355 and the synchronous belt 356. The rotation of the screw 352 will cause the screw nut 353, which is threaded to it, to move axially along the screw 352, thereby driving the second sliding seat 31 to slide in the third direction, realizing the adjustment of the pipe material in the third direction.

[0037] The implementation principle of a joint pressing machine according to an embodiment of this application is as follows: First, the joint is placed in the material loading groove 221 of the material carrier 22, and the pressing seat 23 is controlled to slide and clamp the joint; then, the position of the second sliding seat 31 is adjusted by rotating the drive assembly 35 so that the tube is in a suitable initial position; next, the tube is placed between the two clamping blocks 32, and the lifting drive assembly 34 is started so that the upper clamping block 32a slides down to clamp the tube; then, the first sliding seat 21 slides along the first direction to the tube expansion position, and the tube expansion head 241 is inserted into the tube to perform the tube expansion operation; after the tube expansion is completed, the first sliding seat 21 slides to the tube connection position. Due to the action of the stop block 332 and the limiting seat 33, the clamping block 32 slides accurately to the position where the upper clamping groove 321 is coaxial with the material loading groove 221, and the tube and the joint are accurately connected to complete the assembly.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A joint pressing machine, characterized in that, It includes a base (1), a joint clamping mechanism (2) provided on the base (1), and two pipe clamping mechanisms (3) provided on the base (1); The connector clamping mechanism (2) includes: A first sliding seat (21) is slidably connected to the base (1) along a first direction; A material carrier (22) is fixedly connected to the first sliding seat (21); A pressure seat (23) is slidably connected to the first sliding seat (21) along the second direction, and the material carrier (22) and the pressure seat (23) are distributed facing each other in the second direction; In addition, two expansion tube seats (24) are fixedly connected to the first sliding seat (21). In the third direction, the material carrier (22) is located between the two expansion tube seats (24), and the end of the expansion tube seat (24) away from the material carrier (22) is the expansion tube head (241). The expansion tube head (241) is circular in cross-section perpendicular to the third direction. In the third direction, the diameter of the expansion tube head (241) gradually decreases towards the side away from the first sliding seat (21). In the first direction, the material carrier (22) and the expansion tube seat (24) are spaced apart. When the connector is located on the material carrier (22), the central axis of the connector's nozzle port and the central axis of the expansion tube head (241) are at the same height in the second direction. In the third direction, the joint clamping mechanism (2) is located between the two pipe clamping mechanisms (3), and the pipe clamping mechanism (3) is slidably connected to the base (1) in the third direction.

2. The joint pressing machine according to claim 1, characterized in that, The material carrier (22) has a recessed material loading groove (221) on the side near the pressure seat (23). The material loading groove (221) has a semi-circular cross-section perpendicular to the third direction with the opening facing the pressure seat (23). The central axis of the material loading groove (221) and the central axis of the expansion head (241) are at the same height in the second direction.

3. A joint pressing machine according to claim 2, characterized in that, The tube clamping mechanism (3) includes: The second sliding seat (31) is slidably connected to the base (1) along a third direction; And, two clamping blocks (32), the two clamping blocks (32) are distributed sequentially in the second direction, one of the clamping blocks (32) is an upper clamping block (32a), the other clamping block (32) is a lower clamping block (32b), the lower clamping block (32b) is fixedly connected to the second sliding seat (31), and the upper clamping block (32a) can slide in the second direction to change the distance between the two clamping blocks (32) in the second direction; The two clamping blocks (32) have a clamping groove (321) formed inward on the side that is close to each other. The clamping groove (321) is a semi-circle with an opening facing the other clamping block (32) along a cross section perpendicular to the third direction. When the first sliding seat (21) is in the tube expansion position, the clamping groove (321) on the lower clamping block (32b) and the tube expansion head (241) are coaxial; When the first sliding seat (21) is in the pipe position, the clamping groove (321) on the lower clamping block (32b) and the loading groove (221) are coaxial.

4. A joint pressing machine according to claim 3, characterized in that, The tube clamping mechanism (3) further includes two limiting seats (33), one of which is an upper limiting seat (33a) connected to the upper clamping block (32a), and the other limiting seat (33b) is a lower limiting seat (33b) connected to the lower clamping block (32b); in the second direction, the two clamping blocks (32) are located between the two limiting seats (33); The two limiting seats (33) are recessed on their adjacent sides to form a first limiting groove (331). The length of the first limiting groove (331) is parallel to the first direction. The clamping block (32) is protruding outward to form a limiting strip (322) that is adapted to the first limiting groove (331). The groove wall of the first limiting groove (331) is used to guide the limiting strip (322) to move in the first limiting groove (331) along the first direction. Along the first direction, one end of the first limiting groove (331) passes through the side of the limiting seat (33) away from the second sliding seat (31).

5. A joint pressing machine according to claim 4, characterized in that, In the second direction, the width of the first limiting groove (331) on the limiting seat (33) gradually decreases toward the other limiting seat (33).

6. A joint pressing machine according to claim 5, characterized in that, A stop block (332) is fixedly connected to one side of the two limiting seats (33) that are close to each other. In the first direction, the stop block (332) is located on the side of the clamping block (32) that is close to the second sliding seat (31). When the clamping block (32) slides along the first direction to abut against the stop block (332) and the first sliding seat (21) is in the pipe position, the clamping groove (321) on the lower clamping block (32b) and the loading groove (221) are coaxial.

7. A joint pressing machine according to any one of claims 4-6, characterized in that, A base plate (4) perpendicular to the first direction is fixedly connected to the base (1), and the second sliding seat (31) is slidably connected to the front plate surface of the base plate (4) along the third direction; The pipe clamping mechanism (3) further includes a lifting drive assembly (34), which includes: The first mounting base (341) has one end fixedly connected to the second sliding base (31), and the other end extends beyond the substrate (4) in a first direction to the rear plate side of the substrate (4). The first cylinder (342) has one end hinged around the first axis to the end of the first mounting base (341) away from the second sliding base (31); A second mounting base (343) is fixedly connected to the second sliding plate. In the second direction, the second mounting base (343) is located on the side of the upper clamping block (32a) away from the lower clamping block (32b). A first connecting rod (344) has an integrally formed first hinge segment (3441) and second hinge segment (3442). The connection between the first hinge segment (3441) and the second hinge segment (3442) is a hinge part (3443). The hinge part (3443) is rotatably connected to the second mounting base (343) about a second axis. The end of the first hinge segment (3441) away from the hinge part (3443) is rotatably connected to the other end of the first cylinder (342) about a third axis. And, a second link (345), one end of which is rotatably connected about a fourth axis to the end of the second hinge segment (3442) away from the hinge portion (3443), and the other end is rotatably connected about a fifth axis to the upper limit seat (33a); The first axis, second axis, third axis, fourth axis, and fifth axis are all parallel to the third direction.

8. A joint pressing machine according to claim 7, characterized in that, The tube clamping mechanism (3) further includes a rotation drive assembly (35), which includes: Two rotating connecting seats (351) are fixedly connected to the base plate (4), and the two rotating connecting seats (351) are spaced apart in the third direction; A screw (352) parallel to a third direction, with each end of the screw (352) passing through a rotating connecting seat (351) and rotatably connected to the rotating connecting seat (351) about its own axis; And a lead screw nut (353), which is threaded to the screw (352) and fixedly connected to the second sliding plate.

9. A joint pressing machine according to claim 8, characterized in that, The rotation drive assembly (35) further includes: A motor (354) fixedly connected to the base (1) is located on the side of the base plate (4) away from the second sliding plate in a first direction; Two synchronous pulleys (355), one of which is coaxially fixedly connected to the output end of the motor (354), and the other of which is coaxially fixedly connected to the screw (352); And a timing belt (356) tensioned and wound between the two timing pulleys (355).

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