Hydraulic cylinder lower cover plate riveting die

Abstract

The utility model relates to hydraulic cylinder lower cover plate processing technical field especially relates to hydraulic cylinder lower cover plate riveting mould, including lower mould plate, still including lower fixed plate, the top of lower mould plate is provided with lower fixed plate, and the lower mould plate installs the lower mould corresponding with work piece, the lower mould plate still installs the lower punch corresponding with work piece, the top of lower fixed plate is provided with lower backing plate, and the lower backing plate is provided with stripping mechanism, the top of stripping mechanism is provided with upper mould plate, and the spacing component is arranged between lower mould plate and upper mould plate, and the top of upper mould plate installs upper fixed plate, and the bottom of upper mould plate is provided with riveting assembly, the utility model discloses through the upper mould and lower mould of accurate cooperation, ensure that the die is accurate and unbiased in the stamping process, effectively promote the riveting quality of hydraulic cylinder cover plate, and the design of stripping mechanism makes the cover plate after opening die can automatic ejection, avoids the possible deformation or scratch, and the whole assembly process is simple to operate, and the positioning is accurate and reliable.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder lower cover plate technology, and in particular to the riveting mold for hydraulic cylinder lower cover plate. Background Technology

[0002] The working principle of the hydraulic tilting mechanism mainly relies on the coordinated action of the hydraulic cylinder and the hydraulic system. When hydraulic oil is introduced into the cylinder, the plunger inside the cylinder will be subjected to the pressure of the oil, thereby generating thrust. This thrust can drive the working mechanism to achieve the tilting action. The hydraulic system adjusts the flow direction and pressure of the oil by controlling the valve, thus controlling the tilting speed and angle. The adjustment of the valve enables the hydraulic tilting mechanism to tilt precisely according to the predetermined trajectory.

[0003] In existing technologies, the lower cover plate of hydraulic cylinders is usually assembled using a riveting machine. However, this process has many drawbacks. First, the assembly process is complex, requiring multiple positioning and adjustments, resulting in low efficiency. Second, the positioning accuracy of the rivets is insufficient, which can easily lead to positional deviations, resulting in a loose fit between the cover plate and the cylinder body. In addition, uneven pressure during the riveting process can easily cause bias or false riveting, causing the rivets to loosen or break, which seriously affects the connection strength. These problems not only reduce production efficiency but also lead to unstable processing quality, making it difficult to meet the assembly requirements of high-precision hydraulic cylinders.

[0004] Therefore, in the above-mentioned existing technology, the workpiece is assembled with rivets by a riveting machine, but this assembly is complicated, the positioning is inaccurate, and it is easy to cause uneven pressure and false riveting, and the processing quality cannot be guaranteed. Therefore, a hydraulic cylinder lower cover plate riveting mold can be designed. Utility Model Content

[0005] In order to overcome the problems of the existing technology of assembling workpieces with rivets by riveting machines, which is complicated, inaccurate in positioning, and prone to uneven pressure and false riveting, the processing quality cannot be guaranteed.

[0006] The technical solution of this utility model is as follows: a hydraulic cylinder lower cover plate riveting mold, including a lower template; and a lower fixing plate. The lower template is provided with a lower fixing plate on top. A lower die corresponding to the workpiece is installed on the lower template. A lower punch corresponding to the workpiece is also installed on the lower template. A lower pad is provided on top of the lower fixing plate. A stripping mechanism is provided on the lower pad. An upper template is provided above the stripping mechanism. A limit component is provided between the lower template and the upper template. An upper fixing plate is installed on top of the upper template. A riveting component is provided at the bottom of the upper template.

[0007] Preferably, by setting an upper and lower template, the rivet and the workpiece are placed on the stripping mechanism. At this time, the rivet is located at the top of the stripping mechanism, and the workpiece is located at the top of the rivet. Then, the upper and lower dies are closed. Under the action of the guide component, it is ensured that there will be no deviation between the upper and lower dies during stamping. This riveting die is simple to assemble, accurately positioned, and produces products of good quality. This solves the problem in the prior art where the workpiece is assembled with rivets by a riveting machine, but this assembly is complicated, the positioning is inaccurate, and it is easy to cause uneven pressure and false riveting, and the processing quality cannot be guaranteed.

[0008] Preferably, the stripping mechanism includes a mounting assembly and an ejection assembly, wherein the mounting assembly is used to position the lower punch and the ejection assembly, and the ejection assembly is used to eject the workpiece.

[0009] Preferably, the mounting assembly includes a ejector plate and a mounting groove; the ejector plate is connected to the lower pad, and the upper surface of the ejector plate is provided with mounting grooves corresponding to the positions of the lower punch.

[0010] Preferably, the ejection assembly includes a spring and an ejector pin; a spring is provided on the top of the lower pad corresponding to the position of the mounting groove, and an ejector pin is provided on the top of the spring.

[0011] Preferably, the guide assembly includes guide sleeves and guide rods; guide sleeves are provided at the top four corners of the lower pad, and guide rods are installed at the bottom four corners of the upper fixed plate, with the guide rods slidably connected to the guide sleeves.

[0012] Preferably, the riveting assembly includes an upper punch one, an upper punch two, an upper punch three, and an upper punch four; an upper punch one is installed on the bottom right side of the upper template, an upper punch two is provided on the bottom side of the upper template next to the upper punch one, an upper punch three is provided on the bottom side of the upper template next to the upper punch two, and an upper punch four is provided on the bottom side of the upper template next to the upper punch three.

[0013] Preferably, both upper punch three and upper punch four are fitted with rubber sleeves on their outer sides, which are used to provide cushioning for the workpiece when the mold is closed.

[0014] The beneficial effects of this utility model are:

[0015] The precise matching of the upper and lower dies ensures accurate and error-free die alignment during the stamping process, effectively improving the riveting quality of the hydraulic cylinder cover plate. The stripping mechanism design allows the cover plate to be automatically ejected after the die is opened, avoiding possible deformation or scratches. The entire assembly process is simple to operate and the positioning is accurate and reliable, which not only improves production efficiency but also ensures the consistency of product dimensions and the integrity of appearance. This process significantly improves the bonding strength of the riveted parts, giving the finished product excellent sealing and durability, while reducing subsequent finishing processes, lowering production costs, and ensuring stable and reliable overall quality. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the guide rod of this utility model;

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the unloading mechanism of this utility model;

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the spring of this utility model;

[0020] Figure 5 The diagram shown is a rear-view three-dimensional structural schematic of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Lower template; 2. Lower fixing plate; 3. Lower pad; 41. Unloading plate; 42. Mounting groove; 43. Spring; 44. Ejector pin; 51. Guide sleeve; 52. Guide rod; 6. Upper template; 7. Upper fixing plate; 81. Upper punch one; 82. Upper punch two; 83. Upper punch three; 84. Upper punch four. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a hydraulic cylinder lower cover plate riveting mold, including a lower template 1 and a lower fixing plate 2. The lower template 1 is provided with the lower fixing plate 2 on its top. A lower die corresponding to the workpiece is installed on the lower template 1. A lower punch corresponding to the workpiece is also installed on the lower template 1. A lower pad 3 is provided on the top of the lower fixing plate 2. A stripping mechanism is provided on the lower pad 3. An upper template 6 is provided above the stripping mechanism. A limit component is provided between the lower template 1 and the upper template 6. An upper fixing plate 7 is installed on the top of the upper template 6. A riveting component is provided at the bottom of the upper template 6. By adopting the structural design of the upper template 6 and the lower template 1, the rivet and the workpiece are accurately positioned on the stripping mechanism. The rivet is located at the top of the stripping mechanism, and the workpiece is stacked on top of the rivet. During the mold closing process, the upper and lower dies are closed under the precise guidance of the guide component, ensuring that the mold is aligned without deviation during stamping. This mold has the characteristics of convenient assembly and high positioning accuracy, and can stably produce high-quality riveted products.

[0024] Please see Figure 3 and Figure 4In this embodiment, the stripping mechanism includes an installation component and an ejection component. The installation component is used to position the lower punch and the ejection component, and the ejection component is used to eject the workpiece. The installation component includes a stripping plate 41 and an installation groove 42. The stripping plate 41 is connected to the lower pad 3. The upper surface of the stripping plate 41 is provided with installation grooves 42 corresponding to the position of the lower punch. By setting the stripping plate 41, the workpiece can be positioned. The ejection component includes a spring 43 and an ejector pin 44. The top of the lower pad 3 is provided with a spring 43 corresponding to the position of the installation groove 42. The top of the spring 43 is provided with an ejector pin 44. By setting the spring 43, the spring 43 contracts during stamping. After stamping, the elastic restoring force of the spring 43 will push the ejector pin 44 upward, thereby ejecting the workpiece and facilitating material discharge.

[0025] Please see Figures 1-3 In this embodiment, the guiding assembly includes guide sleeves 51 and guide rods 52; guide sleeves 51 are provided at the top four corners of the lower pad 3, and guide rods 52 are installed at the bottom four corners of the upper fixed plate 7. The guide rods 52 are slidably connected to the guide sleeves 51. By setting the guide rods 52 and guide sleeves 51, the guide rods 52 will insert into the guide sleeves 51 when the mold is closed. The guide sleeves 51 restrict the movement direction of the guide rods 52, thereby improving the mold closing accuracy. The riveting assembly includes upper punch one 81, upper punch two 82, upper punch three 83 and upper punch four 84; the bottom of the upper template 6 An upper punch 1 81 is installed on the right side. An upper punch 2 82 is located on the bottom of the upper template 6, next to the upper punch 1 81. An upper punch 3 83 is located on the bottom of the upper template 6, next to the upper punch 2 82. An upper punch 4 84 is located on the bottom of the upper template 6, next to the upper punch 3 83. By setting four upper punches, rivets at different positions on the workpiece can be riveted. Rubber sleeves are fitted on the outer sides of the upper punch 3 83 and the upper punch 4 84. The rubber sleeves are used to provide cushioning for the workpiece when the mold is closed. By setting the rubber sleeves, a cushioning and protective function can be provided during the riveting process.

[0026] During operation, the rivet is first placed on the upper surface of the ejector plate 41, and then the workpiece is placed on top of the rivet for positioning. Subsequently, the upper template 6 drives the upper fixing plate 7 to move downward. At this time, the four guide rods 52 installed at the bottom of the upper fixing plate 7 are inserted downward into the four guide sleeves 51 fixed at the top of the lower pad plate 3 to ensure accurate mold closing. As the upper template 6 continues to press down, the rubber sleeves on the outside of the upper punch 3 83 and upper punch 4 84 first contact the workpiece to provide cushioning. Then, the upper punch 1 81, upper punch 2 82, upper punch 3 83 and upper punch 4 84 work together to press the rivet on the workpiece against the lower punch below the workpiece for riveting. During this process, the spring 43 below the ejector pin 44 is compressed and stores energy. After the riveting is completed, the upper template 6 moves up to lift the punch, the spring 43 releases its elastic restoring force, and pushes the ejector pin 44 upward to push the riveted workpiece out of the ejector plate 41, realizing automatic unloading.

[0027] Through the above steps, by adopting the frame structure of upper template 6 and lower template 1, the rivet is first placed on the upper surface of the stripping mechanism during operation, and then the workpiece is stacked on top of the rivet. During the mold closing process, the upper template 6 moves downward and, under the precise guidance of the guide component, accurately closes with the lower template 1, ensuring that the mold is aligned without deviation during stamping. This structural design makes the mold assembly process simple and efficient, while ensuring the precise positioning of the rivet and the workpiece, thereby stably producing high-quality riveted finished products. This solves the problem in the existing technology where the workpiece is assembled with rivets by a riveting machine, but this assembly is complicated, the positioning is inaccurate, and it is easy to cause uneven pressure and false riveting, and the processing quality cannot be guaranteed.

Claims

1. A hydraulic cylinder lower cover plate riveting mold, comprising a lower template (1); characterized in that: It also includes a lower fixing plate (2), a lower fixing plate (2) is provided on the top of the lower template (1), a lower die corresponding to the workpiece is installed on the lower template (1), a lower punch corresponding to the workpiece is also installed on the lower template (1), a lower pad plate (3) is provided on the top of the lower fixing plate (2), a stripping mechanism is provided on the lower pad plate (3), an upper template (6) is provided above the stripping mechanism, a limit component is provided between the lower template (1) and the upper template (6), an upper fixing plate (7) is installed on the top of the upper template (6), a riveting component is provided at the bottom of the upper template (6), the stripping mechanism includes an installation component and an ejection component, the installation component is used to position the lower punch and the ejection component, the ejection component is used to eject the workpiece, the installation component includes a ejector plate (41) and an installation groove (42); the ejector plate (41) is connected to the lower pad plate (3), and the upper surface of the ejector plate (41) is provided with an installation groove (42) corresponding to the position of the lower punch.

2. The hydraulic cylinder lower cover plate riveting mold according to claim 1, characterized in that: The ejection assembly includes a spring (43) and an ejector pin (44); the top of the lower pad (3) is provided with a spring (43) at the position corresponding to the mounting groove (42), and the top of the spring (43) is provided with an ejector pin (44).

3. The hydraulic cylinder lower cover plate riveting mold according to claim 1, characterized in that: The guide assembly includes a guide sleeve (51) and a guide rod (52); the top four corners of the lower pad (3) are provided with guide sleeves (51), and the bottom four corners of the upper fixing plate (7) are provided with guide rods (52), and the guide rods (52) are slidably connected to the guide sleeves (51).

4. The hydraulic cylinder lower cover plate riveting mold according to claim 1, characterized in that: The riveting assembly includes an upper punch one (81), an upper punch two (82), an upper punch three (83) and an upper punch four (84); an upper punch one (81) is installed on the bottom right side of the upper template (6), an upper punch two (82) is provided on the bottom side of the upper template (6) next to the upper punch one (81), an upper punch three (83) is provided on the bottom side of the upper template (6) next to the upper punch two (82), and an upper punch four (84) is provided on the bottom side of the upper template (6) next to the upper punch three (83).

5. The hydraulic cylinder lower cover plate riveting mold according to claim 4, characterized in that: Both upper punch three (83) and upper punch four (84) are fitted with rubber sleeves on their outer sides. The rubber sleeves are used to provide cushioning for the workpiece when the mold is closed.

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