Sleeve crimping machine

Abstract

The invention relates to the technical field of machining equipment, in particular to a sleeve crimping machine which comprises a frame. The lower seat body is fixedly connected with the frame body, the upper seat body can be arranged above the lower seat body in a manner of being close to or far away from the lower seat body, and the upper seat body and the lower seat body are respectively provided with a fixed part and a sliding part; the buckling and pressing structure comprises four dovetail pressing blocks which are arranged in a circumferential array mode, any two opposite dovetail pressing blocks are fixedly connected with the fixing parts of the upper base body and the lower base body respectively, the other two dovetail pressing blocks are slidably connected with the sliding parts of the upper base body and the lower base body at the same time, and a follow-up pressing block is arranged between every two adjacent dovetail pressing blocks; a reset spring is arranged between each follow-up pressing block and the two adjacent dovetail pressing blocks, each follow-up pressing block and each dovetail pressing block are connected with a pressing head through a connecting structure, and the connecting structures are used for adjusting the distance between the pressing head and the follow-up pressing blocks or the distance between the pressing head and the dovetail pressing blocks. The sleeve buckling device has the effect of improving the sleeve buckling precision.

Description

Technical Field

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

[0002] Casing crimping machines are widely used in the automotive, aerospace and shipbuilding industries, mainly for pipe connections to ensure their sealing and reliability. With the continuous advancement of industrial technology, the requirements for casing crimping machines are also increasing. They not only need to have efficient production capacity and stable performance, but also good operation convenience and maintenance convenience. There are various types of casing crimping machines on the market, such as manual crimping machines, electric crimping machines and hydraulic crimping machines. They each play an important role in specific application scenarios and promote the development of related industries.

[0003] However, various casing crimping machines in related technologies generally face a common problem, that is, the distance between the pressure head and the pressure block cannot be flexibly adjusted during the crimping process, resulting in uneven pressure distribution, uneven force on the casing, and easy deformation or damage, which seriously affects the final crimping effect and product quality. This problem limits the further development of casing crimping machines in high-end applications, and an effective solution is urgently needed. Summary of the invention

[0004] In order to improve the accuracy of casing crimping, the present application provides a casing crimping machine.

[0005] The present application provides a casing crimping machine that adopts the following technical solution: A casing crimping machine comprises a frame; a lower seat and an upper seat, the lower seat is fixedly connected to the frame, the upper seat can be arranged above the lower seat so as to be close to or away from the lower seat, a fixing part parallel to the horizontal direction is arranged on a surface of the upper seat and the lower seat that are close to each other, and sliding parts that are 135° at an angle to the fixing part are respectively arranged on both sides of the fixing part; a crimping structure, the crimping structure comprises four dovetail pressing blocks, the dovetail pressing blocks are arranged in a circular array, and any two opposite dovetail pressing blocks are respectively connected to the upper seat and the lower seat. The fixing part is fixedly connected to the fixing part, and the other two dovetail pressure blocks are slidably connected to the sliding parts of the upper seat body and the lower seat body at the same time. A follower pressure block is arranged between every two adjacent dovetail pressure blocks, and a return spring is arranged between each follower pressure block and the two adjacent dovetail pressure blocks respectively. Each follower pressure block is slidably arranged with the dovetail part of the two adjacent dovetail pressure blocks, and each follower pressure block and each dovetail pressure block are connected with a pressure head through a connecting structure, and the connecting structure is used to adjust the distance between the pressure head and the follower pressure block or the dovetail pressure block.

[0006] By adopting the above technical solution, more stable positioning and precise pressure distribution can be achieved during the crimping process. Specifically, by setting a fixed part and a sliding part, and making the dovetail pressure block and the follower pressure block work together at a specific angle, the deviation and deformation during the crimping process can be effectively avoided, thereby improving the crimping quality and production efficiency. In addition, the adjustable connection structure allows the distance between the pressure head and the dovetail pressure block or the follower pressure block to be flexibly adjusted according to actual needs, further enhancing the applicability and flexibility of the equipment.

[0007] Optionally, a moving column is slidably connected to the frame in a vertical direction, and a hydraulic cylinder is provided at the bottom of the moving column, and the hydraulic cylinder is used to drive the moving column to reciprocate in the vertical direction.

[0008] By adopting the above technical solution, the moving column can slide in the vertical direction, thereby realizing the up and down movement of the upper seat relative to the lower seat. The hydraulic cylinder, as a power source, can provide a stable driving force to ensure stable buckling between the upper seat and the lower seat, thereby improving the buckling quality and production efficiency.

[0009] Optionally, the connecting structure includes a transmission member and a connecting member, the transmission member has an input shaft and two output shafts, the input shaft and the output shaft are transmission connected so that the input shaft can drive the output shaft to rotate, the output shaft is constructed as a ball screw, the connecting member is provided with a nut matching the ball screw, the connecting member is provided with a mounting hole, the pressure head is provided with a receiving hole matching the mounting hole, and the mounting hole and the receiving hole are used for inserting a pin sleeve.

[0010] By adopting the above technical solution, the connection structure can achieve precise adjustment of the position of the pressure head, ensuring that the distance between the pressure head and the follower pressure block or dovetail pressure block is adjustable, thereby adapting to the crimping requirements of different sizes of casings. The cooperation of the ball screw and the nut makes the adjustment process smoother and more precise, improving the crimping accuracy and efficiency. At the same time, the design of the pin sleeve ensures a stable connection between the pressure head and the connector, enhancing the stability and reliability of the entire system.

[0011] Optionally, the transmission member includes a housing, and the input shaft and the output shaft are both rotatably connected to the housing around their own axes. Two transmission shafts are rotatably connected inside the housing, and the transmission shafts are coaxially arranged and transmission-linked to the input shaft through a first bevel gear structure, and the output shaft is transmission-connected to an end of the transmission shaft away from the input shaft through a second bevel gear structure.

[0012] By adopting the above technical solution, the design of the transmission part enables the input shaft and the output shaft to rotate stably, ensuring the high efficiency and reliability of power transmission. The use of the first bevel gear structure and the second bevel gear structure realizes the precise linkage between the transmission shaft and the input shaft and the output shaft, improving the transmission efficiency and stability. This design not only simplifies the structure and reduces the manufacturing cost, but also effectively improves the operating accuracy and service life of the equipment.

[0013] Optionally, a softening structure is further included, wherein the softening structure includes a heating rod, and the heating rod is arranged in the mounting hole through the pin sleeve.

[0014] By adopting the above technical solution, the addition of the softening structure allows the sleeve to be heated before buckling, thereby improving the plasticity of the material, reducing the risk of cracks or other damage during the buckling process, and ensuring the buckling quality and yield rate. Specifically, the heating rod is set in the mounting hole through a pin sleeve, and can transfer heat to the sleeve through the pressure head during the buckling process, so as to facilitate the heating operation while ensuring the stability and safety of the heating rod.

[0015] Optionally, a stop plate is further provided on one side of the lower seat body.

[0016] By adopting the above technical solution, the setting of the stop plate can play a role in positioning the sleeve.

[0017] Optionally, a cold air pipe is provided on the side of the stop plate close to the frame, the cold air pipe is horizontally arranged between the upper seat body and the lower seat body, a cold air nozzle is provided at the end of the cold air pipe, and a cold air interface for connecting to a cold air source is provided on the side of the stop plate away from the frame.

[0018] By adopting the above technical solution, the cold air pipe and cold air nozzle on one side of the stop plate can effectively cool the sleeve that has just undergone heating treatment, prevent changes in material properties caused by high temperature, and improve product quality; the design of the cold air interface is convenient for connection with an external cold air source to ensure a continuous and stable cooling effect.

[0019] Optionally, the cooling nozzle is constructed in a disc shape, and a plurality of cold air diversion channels are provided in the cooling nozzle. A cold air inlet for connecting to the cold air pipe is provided at one end of the cooling nozzle, and a plurality of cold air outlets are provided on the outer peripheral wall of the cooling nozzle. The cold air inlet is connected to the cold air outlet through the cold air diversion channel.

[0020] By adopting the above technical solution, the uniformity of cold air distribution can be effectively improved, ensuring the cooling effect of each part of the sleeve is consistent, thereby avoiding deformation problems caused by local temperature differences. The cold air inlet is connected to the cold air outlet through the cold air diversion channel, so that the cold air can be quickly and evenly ejected from the multiple cold air outlets on the outer peripheral wall of the cooling nozzle, further improving the cooling efficiency and cooling quality.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. By arranging dovetail pressure blocks and follower pressure blocks on the fixed part and sliding part of the upper and lower base bodies, and connecting them through a reset spring, uniform pressure distribution between the pressure head and the casing is achieved, effectively avoiding deformation or damage of the casing caused by uneven force, and improving the buckling effect and product quality; 2. The connection structure adopts transmission parts and connecting parts. Through the cooperation of ball screws and nut, the distance between the pressure head and the follower pressure block or dovetail pressure block can be easily adjusted, so that the pressure head can be accurately positioned on casings of different sizes, with strong adaptability and convenient operation; 3. The design of the moving column and hydraulic cylinder on the frame enables the upper seat to move stably in the vertical direction, ensuring the stability and accuracy during the crimping process, while reducing the labor intensity of the operators and improving production efficiency; 4. Heating and cooling treatments can soften the rubber part of the casing and cool the high-temperature casing after crimping, which facilitates processing while avoiding changes in the physical properties of the material caused by high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the casing crimping machine provided in an embodiment of the present application.

[0023] Figure 2 It is a structural schematic diagram of the connection structure provided in an embodiment of the present application, wherein the shell is not shown.

[0024] Figure 3 It is a schematic diagram of the structure of the stop plate provided in an embodiment of the present application.

[0025] Explanation of the reference numerals: 1-frame; 2-lower seat; 3-upper seat; 4-dovetail pressure block; 5-follow-up pressure block; 6-pressure head; 7-reset spring; 8-moving column; 9-connecting structure; 901-input shaft; 902-output shaft; 903-transmission shaft; 904-nut; 905-housing; 906-pin sleeve; 907-connecting piece; 908-mounting hole; 909-input bevel gear; 9010-first transmission bevel gear; 9011-second transmission bevel gear; 9012-output bevel gear; 9013-shaft frame; 9014-abutment plate; 10-stop plate; 11-cold air pipe; 12-cold air nozzle; 13-cold air interface. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-3 This application is described in further detail.

[0027] The embodiment of the present application discloses a casing crimping machine.

[0028] like Figure 1 As shown, the casing crimping machine comprises a frame 1, a lower seat 2, an upper seat 3 and a crimping structure, wherein the lower seat 2 is fixedly connected to the frame 1, the upper seat 3 can be arranged above the lower seat 2 close to or away from the lower seat 2, and the upper seat 3 and the lower seat 2 are provided with a fixed part parallel to the horizontal direction on the side where they are close to each other, and a sliding part with an angle of 135° with the fixed part is provided on both sides of the fixed part. The crimping structure comprises four dovetail pressing blocks 4, which are arranged in a circumferential array, and any two opposite dovetail pressing blocks 4 are fixedly connected to the fixed parts of the upper seat 3 and the lower seat 2, respectively, and the remaining two dovetail pressing blocks 4 are slidably connected to the sliding parts of the upper seat 3 and the lower seat 2 at the same time. A follower pressing block 5 is arranged between every two adjacent dovetail pressing blocks 4, and a reset spring 7 is arranged between each follower pressing block 5 and the two adjacent dovetail pressing blocks 4, and each follower pressing block 5 is slidably arranged with the dovetail parts of the two adjacent dovetail pressing blocks 4. Each follower pressure block 5 and each dovetail pressure block 4 is connected to a pressure head 6 via a connecting structure 9, and the connecting structure 9 is used to adjust the distance between the pressure head 6 and the follower pressure block 5 or the dovetail pressure block 4. This design allows the distance between the pressure head 6 and the pressure block to be flexibly adjusted, improves the uniformity of pressure distribution, avoids deformation or damage caused by uneven force on the casing, and thus improves the buckling effect and product quality.

[0029] In order to realize the reciprocating movement of the upper seat body 3 in the vertical direction, a moving column 8 is slidably connected to the frame body 1 in the vertical direction, and a hydraulic cylinder is provided at the bottom of the moving column 8, and the hydraulic cylinder is used to drive the moving column 8 to reciprocate in the vertical direction. This design allows the upper seat body 3 to accurately approach or move away from the lower seat body 2, thereby realizing the crimping of the casing. The moving column 8 can be made of high-strength steel to withstand a large load. As a power source, the hydraulic cylinder can provide a stable driving force, thereby ensuring the reliability and stability of the movement of the upper seat body 3. The working pressure and flow of the hydraulic cylinder can be adjusted through the hydraulic circulation system to adapt to different crimping requirements, which will not be elaborated in this application.

[0030] like Figure 1-Figure 3As shown, the connection structure 9 includes a transmission member and a connection member. The transmission member has an input shaft 901 and two output shafts 902. The output shaft 902 is constructed as a ball screw. The connection member is provided with a nut 904 that matches the ball screw and an avoidance hole for the ball screw to pass through. The connection member is provided with a mounting hole, and the pressure head 6 is provided with a receiving hole that matches the mounting hole. The mounting hole and the receiving hole are used to insert the pin sleeve 906. This design allows the distance between the pressure head 6 and the follower pressure block 5 or the dovetail pressure block 4 to be adjusted by rotating the input shaft 901 to drive the output shaft 902 to rotate, thereby achieving precise control of the buckling pressure. In order to facilitate the adjustment of the input shaft 901, a hexagonal countersunk hole can be set at the end of the input shaft 901.

[0031] like Figure 1-Figure 3 As shown, specifically, the transmission member includes a housing 905, and both the input shaft 901 and the output shaft 902 can be rotatably connected to the housing 905 around their own axes. Two transmission shafts 903 are rotatably connected in the housing 905. The transmission shaft 903 is coaxially arranged and transmission-connected to the input shaft 901 through a first bevel gear structure, and the output shaft 902 is transmission-connected to one end of the transmission shaft 903 away from the input shaft 901 through a second bevel gear structure. The first bevel gear structure includes an input bevel gear 909 and two first transmission bevel gears 9010 that can mesh with the input bevel gear, the input bevel gear 909 is arranged on the input shaft 901, and the first transmission bevel gear 9010 is arranged at one end of the transmission shaft 903 close to the input shaft 901. The second bevel gear structure includes two output bevel gears 9012 and two second transmission bevel gears 9011 that can mesh with the output bevel gears, the output bevel gear 9012 is arranged on the output shaft 902, and the second transmission bevel gear 9011 is arranged at one end of the transmission shaft 903 close to the output shaft 902. This design realizes the effective transmission of power and improves the stability and reliability of the transmission system. The input bevel gear 909, the output bevel gear 9012, the first transmission bevel gear 9010 and the second transmission bevel gear 9011 can be made of standard parts, which are convenient for purchase and replacement. In order to limit the transmission shaft 903, a limit groove can be provided on the transmission shaft 903, and a shaft frame 9013 matched with the limit groove is provided in the housing 905, and a bearing can be provided between the limit groove and the shaft frame 9013. In order to reduce the force borne by the second bevel gear structure, two abutment disks 9014 can be provided on the output shaft 902, one of which abuts against the top wall of the housing 905 through a thrust bearing, and the other abuts against the bottom wall of the housing 905 through a thrust bearing.

[0032] The implementation principle of this embodiment is: The present casing crimping machine adopts a unique crimping structure design, so that the distance between the pressure head 6 and the pressure block can be flexibly adjusted, which improves the uniformity of pressure distribution and avoids deformation or damage of the casing caused by uneven force, thereby improving the crimping effect and product quality. The design of the connection structure 9 makes the adjustment of the pressure head 6 more convenient and accurate, and improves the convenience of operation and maintenance of the equipment. The use of the hydraulic cylinder allows the upper seat body 3 to accurately approach or move away from the lower seat body 2, thereby achieving efficient crimping of the casing.

[0033] Example 2 The difference between this embodiment and the first embodiment is that a softening structure is added, and the softening structure includes a heating rod, and the heating rod is arranged in the mounting hole through the pin sleeve 906. This design can preheat the rubber part of the sleeve before buckling, making it softer and easier to shape, reducing the risk of cracks or other damage during the buckling process, thereby improving the quality and efficiency of buckling.

[0034] Specifically, the heating rod can be made of a resistance heating wire, which has high heating efficiency and stability. The length and diameter of the heating rod can be selected according to the actual working conditions to adapt to different types and sizes of sleeves. The heating rod can be fixed in the mounting hole by the pin sleeve 906, and the power and heating time of the heating rod can be adjusted by the controller to adapt to different buckling requirements. The use of the heating rod can preheat the sleeve before buckling, making it softer and easier to shape, thereby improving the quality and efficiency of buckling. The specific parameters can be adjusted according to the material and thickness of the sleeve. The preheated sleeve is not easy to crack or other damage during the buckling process, and the buckling effect is better and the yield rate is higher.

[0035] In order to position the sleeve, a stopper plate 10 is also provided on the side of the lower seat body 2 opposite to the sleeve conveying direction. A cold air pipe 11 is provided on the side of the stopper plate 10 close to the frame body 1. The cold air pipe 11 is arranged between the upper seat body 3 and the lower seat body 2 in the horizontal direction. A cold air nozzle 12 is provided at the end of the cold air pipe 11. A cold air interface 13 for connecting to a cold air source is provided on the side of the stopper plate 10 away from the frame body 1. This design can cool the sleeve that has just been heated after the crimping is completed, prevent the material performance changes caused by high temperature, and improve product quality; the design of the cold air interface 13 is convenient for connection with an external cold air source to ensure a continuous and stable cooling effect.

[0036] The cold air nozzle 12 may be disc-shaped with a plurality of cold air diversion channels provided inside, and the cold air inlet is connected with the cold air outlet through the cold air diversion channels, so that the even distribution of the cold air can be ensured and the cooling effect can be improved.

[0037] The implementation principle of a casing crimping machine in the embodiment of the present application is: S1, adjusting the distance between the pressure head 6 and the follower pressure block 5 or the dovetail pressure block 4 by rotating the input shaft 901 to ensure that the pressure distribution on the contact surface between the pressure head 6 and the casing is uniform during processing; S2, placing the sleeve to be buckled on the lower seat body 2, and making one end thereof abut against the stop plate 10; S3, start the hydraulic cylinder to move the upper seat body 3 downward, gradually approaching the lower seat body 2, until the sleeve is compressed; S4, start the heating rod, transfer the heat of the heating rod to the sleeve through the pressing block, and keep a certain pressing time to make the sleeve completely formed; S5, start the hydraulic cylinder to move the upper seat body 3 upward until the sleeve is released; S6, transfer cold air to the cold air nozzle 12 through the cold air pipe 11 to cool the casing. S7, taking out the crimped casing.

[0038] 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 casing crimping machine, characterized in that: include: Frame (1); A lower seat (2) and an upper seat (3), wherein the lower seat (2) is fixedly connected to the frame (1), and the upper seat (3) is arranged above the lower seat (2) so as to be close to or away from the lower seat (2), and a fixing portion parallel to the horizontal direction is provided on a surface of the upper seat (3) and the lower seat (2) close to each other, and sliding portions are provided on both sides of the fixing portion, which form an angle of 135° with the fixing portion; The buckling structure comprises four dovetail pressure blocks (4), the dovetail pressure blocks (4) are arranged in a circular array, any two opposite dovetail pressure blocks (4) are respectively fixedly connected to the fixed parts of the upper seat body (3) and the lower seat body (2), and the remaining two dovetail pressure blocks (4) are simultaneously slidably connected to the sliding parts of the upper seat body (3) and the lower seat body (2), and a follower pressure block (5) is arranged between every two adjacent dovetail pressure blocks (4), and each follower pressure block (5) is arranged between the two adjacent dovetail pressure blocks (4). A return spring (7) is arranged between each of the blocks (5) and two adjacent dovetail pressure blocks (4); each of the follower pressure blocks (5) is slidably arranged with the dovetail parts of the two adjacent dovetail pressure blocks (4); each of the follower pressure blocks (5) and each of the dovetail pressure blocks (4) is connected to a pressure head (6) via a connecting structure (9); and the connecting structure (9) is used to adjust the distance between the pressure head (6) and the follower pressure block (5) or the dovetail pressure block (4).

2. The casing crimping machine according to claim 1, characterized in that: A movable column (8) is slidably connected to the frame (1) in the vertical direction, and a hydraulic cylinder is provided at the bottom of the movable column (8). The hydraulic cylinder is used to drive the movable column (8) to reciprocate in the vertical direction.

3. The casing crimping machine according to claim 1, characterized in that: The connection structure (9) comprises a transmission member and a connection member, wherein the transmission member has an input shaft (901) and two output shafts (902), the input shaft (901) and the output shaft (902) are connected in transmission so that the input shaft (901) can drive the output shaft (902) to rotate, the output shaft (902) is constructed as a ball screw, the connection member is provided with a nut (904) matching with the ball screw, the connection member is provided with a mounting hole, the pressure head (6) is provided with a receiving hole matching with the mounting hole, and the mounting hole and the receiving hole are used for inserting a pin sleeve (906).

4. The casing crimping machine according to claim 3, characterized in that: The transmission member comprises a housing (905), the input shaft (901) and the output shaft (902) are both rotatably connected to the housing (905) around their own axes, two transmission shafts (903) are rotatably connected inside the housing (905), the transmission shafts (903) are coaxially arranged and transmission-linked to the input shaft (901) via a first bevel gear structure, and the output shaft (902) is transmission-connected to an end of the transmission shaft (903) away from the input shaft (901) via a second bevel gear structure.

5. The casing crimping machine according to claim 3, characterized in that: It also includes a softening structure, which includes a heating rod, and the heating rod is arranged in the mounting hole through the pin sleeve (906).

6. The casing crimping machine according to claim 1, characterized in that: A stop plate (10) is also provided on one side of the lower seat body (2).

7. The casing crimping machine according to claim 6, characterized in that: A cold air pipe (11) is provided on the side of the stop plate (10) close to the frame (1); the cold air pipe (11) is arranged horizontally between the upper seat (3) and the lower seat (2); a cold air nozzle (12) is provided at the end of the cold air pipe (11); and a cold air interface (13) for connecting to a cold air source is provided on the side of the stop plate (10) away from the frame (1).

8. The casing crimping machine according to claim 7, characterized in that: The cooling nozzle is disc-shaped, and a plurality of cold air diversion channels are arranged inside the cooling nozzle. A cold air inlet for connecting to the cold air pipe (11) is arranged at one end of the cooling nozzle, and a plurality of cold air outlets are arranged on the outer peripheral wall of the cooling nozzle. The cold air inlet is connected to the cold air outlet through the cold air diversion channel.

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