A trimming die mounting mechanism

Abstract

The utility model discloses a kind of trimming die mounting mechanisms, belong to trimming die field, including hydraulic punch base plate, trimming die lower mould plate and positioning assembly, trimming die lower mould plate is installed on hydraulic punch base plate, positioning assembly includes first locating block and second locating block, first locating block is installed on hydraulic punch base plate, second locating block is installed on trimming die lower mould plate, positioning protrusion or locating groove is provided on first locating block, second locating block is correspondingly provided with locating groove or positioning protrusion. A kind of trimming die mounting mechanism of the application embodiment, through the butt joint of precision concave-convex positioning structure, the improvement of positioning accuracy and die changing efficiency is realized, labor intensity can be reduced, so that safety risk is reduced, promote manufacturing cost reduction, efficiency, quality improvement and green development, with significant industrial application value.

Description

Technical Field

[0001] This utility model relates to the field of edge trimming die technology, and in particular to an edge trimming die mounting mechanism. Background Technology

[0002] Early edge-cutting die installation relied heavily on manual positioning and fastening. Operators would observe the relative position of the die and the machine's worktable, repeatedly calibrating it with tools such as shims and adjusting pads until the position was roughly aligned, before securing the die to the worktable with bolts. This method not only demanded a high level of operator experience but was also time-consuming, often taking over 30 minutes per change, severely hindering production line efficiency. Furthermore, the accuracy of manual positioning was difficult to guarantee, frequently leading to workpiece edge dimensions exceeding tolerances due to die installation errors, increasing product scrap rates. An existing positioning device for edge-cutting die replacement features a circular positioning ring at the center of the die's template. During die replacement, this ring needs to be aligned with the machine tool's center hole. During this alignment process, a human eye is required to visually identify the alignment ring and continuously calibrate the die position. This die-changing design, reliant on visual alignment, significantly impacts efficiency and prolongs the changeover time. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a cutting die mounting mechanism.

[0004] A cutting die mounting mechanism according to an embodiment of the present utility model includes: Hydraulic punch press base plate; The trimming die lower template is installed on the hydraulic punch base plate; The positioning component includes a first positioning block and a second positioning block. The first positioning block is mounted on the base plate of the hydraulic punch press, and the second positioning block is mounted on the lower template of the trimming die. The first positioning block is provided with a positioning protrusion or a positioning groove, and the second positioning block is provided with a corresponding positioning groove or a positioning protrusion.

[0005] A cutting die mounting mechanism according to an embodiment of the present utility model has at least the following beneficial effects: A first positioning block is connected to the base plate of a hydraulic punch press, and a second positioning block is connected to the lower template of the trimming die. The first and second positioning blocks abut against each other, and the precision concave-convex positioning structure achieves improved positioning accuracy and die-changing efficiency. Compared with traditional die-changing methods that require manual prying of the die for alignment and rely on human visual identification, this embodiment uses automated guiding positioning, requiring only the operator to lift the die, thus reducing labor intensity and safety risks. This promotes cost reduction, efficiency improvement, quality enhancement, and green development in the manufacturing industry, and has significant industrial application value.

[0006] According to some embodiments of the present invention, the positioning component is provided in at least two sets, with the two second positioning blocks located at the same end of the lower template of the cutting die.

[0007] According to some embodiments of the present invention, the positioning groove is an arc-shaped groove, and the positioning protrusion is an arc-shaped protrusion.

[0008] According to some embodiments of the present invention, the hydraulic punch press base plate is provided with a slide rail for supporting and guiding the lower template of the cutting die, and the guiding direction of the slide rail is the direction of the center line connecting the first positioning block and the second positioning block.

[0009] According to some embodiments of the present invention, the hydraulic punch press base plate is provided with rollers for supporting and guiding the lower template of the cutting die, and the guiding direction of the rollers is the direction of the center line connecting the first positioning block and the second positioning block.

[0010] According to some embodiments of the present invention, the first positioning block is provided with a first connecting hole for the first bolt to pass through, and the hydraulic punching base plate is provided with a first threaded hole for the first bolt to pass through. The first positioning block is mounted on the hydraulic punching base plate by the first bolt.

[0011] According to some embodiments of the present invention, a plurality of first threaded holes are provided, and the plurality of first threaded holes are evenly spaced along the line connecting the centers of the first positioning block and the second positioning block.

[0012] According to some embodiments of the present invention, the first positioning block is provided with a second connecting hole for the pin to pass through, and the hydraulic punch plate is provided with a third connecting hole for the pin to pass through.

[0013] According to some embodiments of the present invention, the second positioning block is provided with a fourth connecting hole for the second bolt to pass through, and the lower template of the trimming die is provided with a second threaded hole for the second bolt to pass through. The second positioning block is installed on the lower template of the trimming die by the second bolt.

[0014] According to some embodiments of the present invention, the second positioning block is provided with an overlapping part, which overlaps on the lower template of the cutting die, and the fourth connecting hole is provided on the overlapping part.

[0015] The installation method of the edge-cutting die mounting mechanism according to this utility model includes the following steps: Step 1: First, install the first positioning block onto the hydraulic punch press base plate and lock it in place with bolts and pins.

[0016] Step 2: Install the second positioning block onto the lower mold plate and lock it in place with bolts and pins.

[0017] Step 3: Clean the hydraulic press base plate thoroughly, and use an overhead crane or forklift to lift the mold onto the machine table.

[0018] Step 4: Open the hydraulic slide rail device and visually align the second positioning block on the mold with the first positioning block on the hydraulic punch press base plate.

[0019] Step 5: Push the mold by hand to make the second positioning block contact the first positioning block, and automatically correct the horizontal deviation through the positioning protrusion and positioning groove guide.

[0020] Step 6: Check whether the positioning protrusion and positioning groove are in proper contact, and turn off the hydraulic slide rail device.

[0021] Step 7: Lock the mold to complete the positioning process.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the edge-cutting mold mounting mechanism according to an embodiment of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of an existing positioning device for replacing the cutting die.

[0024] Icon labels: 100. Hydraulic punch press base plate; 110. Slide rail; 120. First threaded hole; 130. Third connecting hole; 200. Cutting edge lower template; 300, Positioning component; 310, First positioning block; 311, Positioning protrusion; 312, First connecting hole; 313, Second connecting hole; 320, Second positioning block; 321, Positioning groove; 322, Fourth connecting hole; 323, Overlapping part; 324, Fifth connecting hole; 410. Hydraulic equipment; 420. Positioning ring; 430. Mold. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] An existing positioning device for changing the cutting die, as shown in the attached figure. Figure 3 As shown, the mold 430 has a circular positioning ring 420 at its center. During mold changing, the circular positioning ring 420 of the mold 430 needs to be aligned with the center hole of the hydraulic device 410. During the guiding process, the positioning ring needs to be visually identified to ensure alignment with the center hole of the hydraulic device 410, and the position of the mold 430 needs to be continuously calibrated. This mold changing design relies on visual alignment, which greatly affects the mold changing efficiency and prolongs the mold changing time.

[0029] Please see Figure 1 and Figure 2An embodiment of the present invention provides a trimming die mounting mechanism, comprising a hydraulic press base plate 100, a trimming die lower template 200, and a positioning component 300. The trimming die lower template 200 is mounted on the hydraulic press base plate 100. The positioning component 300 includes a first positioning block 310 and a second positioning block 320. The first positioning block 310 is mounted on the hydraulic press base plate 100, and the second positioning block 320 is mounted on the trimming die lower template 200. The first positioning block 310 is provided with a positioning protrusion 311, and the second positioning block 320 is correspondingly provided with a positioning groove 321. Alternatively, the positioning groove 321 can be provided on the first positioning block 310, and the positioning protrusion 311 can be provided on the second positioning block 320.

[0030] A first positioning block 310 is connected to the hydraulic punch press base plate 100, and a second positioning block 320 is connected to the trimming die lower template 200. The first positioning block 310 and the second positioning block 320 are positioned and abutted together. Through the precise concave-convex positioning structure, the positioning accuracy and die-changing efficiency are improved. Compared with the traditional die-changing method that requires manual prying of the die for alignment and relies on human visual identification, this embodiment uses automated guiding positioning, requiring only the operator to lift the die, which reduces labor intensity and safety risks. This promotes cost reduction, efficiency improvement, quality enhancement, and green development in the manufacturing industry, and has significant industrial application value.

[0031] In some embodiments, see Figure 1 and Figure 2 The positioning component 300 is provided with at least two sets, with two second positioning blocks 320 located at the same end of the trimming die lower template 200. Two first positioning blocks 310 are located on the same side of the trimming die lower template 200, and the center line connecting the two first positioning blocks 310 is perpendicular to the center line connecting the first positioning block 310 and the second positioning block 320 in the same positioning component 300. By providing at least two sets of positioning components 300, the positioning accuracy between the trimming die lower template 200 and the hydraulic punch platen 100 can be further improved.

[0032] In some embodiments, see Figure 1 and Figure 2 The positioning groove 321 is an arc-shaped groove, and the positioning protrusion 311 is an arc-shaped protrusion. The arc-shaped groove and the arc-shaped protrusion have the same curvature. When the first positioning block 310 and the second positioning block 320 are docked, the arc-shaped groove guides the arc-shaped protrusion, ensuring that the arc-shaped protrusion can be finely adjusted to fit completely in the arc-shaped groove, thereby ensuring the positioning and installation accuracy of the trimming die lower template 200 and the hydraulic punch plate 100.

[0033] In some embodiments, see Figure 1 and Figure 2The hydraulic press base plate 100 is provided with a slide rail 110, which can support and guide the lower template 200 of the trimming die. The guiding direction of the slide rail 110 is the direction of the center line connecting the first positioning block 310 and the second positioning block 320. The die is lifted onto the machine table by a crane or forklift. With the slide rail 110 on the hydraulic press base plate 100, the lower template 200 of the trimming die can move more smoothly on the hydraulic press base plate 100, which facilitates the positioning and docking of the first positioning block 310 and the second positioning block 320.

[0034] In some embodiments, see Figure 1 and Figure 2 The hydraulic press base plate 100 is equipped with rollers that support and guide the lower template 200 of the trimming die. The guiding direction of the rollers is along the line connecting the centers of the first positioning block 310 and the second positioning block 320. When the die is lifted onto the machine table by a crane or forklift, the rollers on the hydraulic press base plate 100 allow the lower template 200 of the trimming die to move more smoothly on the hydraulic press base plate 100, facilitating the positioning and docking of the first positioning block 310 and the second positioning block 320.

[0035] In some embodiments, see Figure 1 and Figure 2 The first positioning block 310 is provided with a first connecting hole 312, and the hydraulic punching base plate 100 is provided with a first threaded hole 120. The first positioning block 310 is installed on the hydraulic punching base plate 100 by a first bolt. The first bolt passes through the first connecting hole 312 and is screwed into the first threaded hole 120. The first positioning block 310 is firmly connected to the hydraulic punching base plate 100 and is easy to disassemble and assemble.

[0036] In some embodiments, see Figure 1 and Figure 2 Multiple first threaded holes 120 are provided, and the multiple first threaded holes 120 are evenly spaced along the line connecting the centers of the first positioning block 310 and the second positioning block 320. The multiple first threaded holes 120 facilitate the adjustment of the position of the first positioning block 310, thereby adapting to different specifications of the cutting die lower template 200.

[0037] In some embodiments, see Figure 1 and Figure 2 The first positioning block 310 is provided with a second connecting hole 313, and the hydraulic punching base plate 100 is provided with a third connecting hole 130. A pin passes through the second connecting hole 313 and the third connecting hole 130. The first positioning block 310 is perpendicular to the hydraulic punching base plate 100 by using both bolts and pins for double fixing.

[0038] In some embodiments, see Figure 1 and Figure 2The second positioning block 320 is provided with a fourth connecting hole 322, and the lower template 200 of the trimming die is provided with a second threaded hole. The second positioning block 320 and the lower template 200 of the trimming die are detachably connected by a second bolt. The second bolt passes through the fourth connecting hole and is screwed into the second threaded hole, so that the second positioning block 320 and the lower template 200 of the trimming die are firmly connected and easy to disassemble and assemble.

[0039] The second positioning block 320 is provided with a fifth connecting hole 324, and the lower template 200 of the cutting die is provided with a sixth connecting hole. The pin passes through the fifth connecting hole 324 and the sixth connecting hole, and is double fixed by bolts and pins to ensure the parallelism between the second positioning block 320 and the reference surface of the lower template 200 of the cutting die.

[0040] In some embodiments, see Figure 1 and Figure 2 The second positioning block 320 is provided with an overlapping part 323, which overlaps with the lower template 200 of the cutting die. The fourth connecting hole 322 is provided on the overlapping part 323. The overlapping part 323 of the second positioning block 320 overlaps with the cutting die, and the fourth connecting hole 322 is set upward, which makes it convenient to screw the second bolt into the second threaded hole, so that the second positioning block 320 and the lower template 200 of the cutting die can be easily assembled and disassembled.

[0041] The installation steps of the trimming die mounting mechanism in this application embodiment are as follows: Step 1: First, install the first positioning block 310 onto the hydraulic punching base plate 100 and lock it in place with bolts and pins.

[0042] Step 2: Install the second positioning block 320 onto the lower template 200 of the cutting die, and lock it in place with bolts and pins.

[0043] Step 3: Clean the hydraulic punch platen 100 thoroughly, and use a crane or forklift to lift the mold onto the machine table.

[0044] Step 4: Open the hydraulic slide rail 110 device and visually align the second positioning block 320 with the first positioning block 310 on the hydraulic punch press base plate 100.

[0045] Step 5: Push the mold by hand to make the second positioning block 320 contact the first positioning block 310, and automatically correct the horizontal deviation by guiding the positioning protrusion 311 and positioning groove 321.

[0046] Step 6: Check whether the positioning protrusion 311 and the positioning groove 321 are in proper contact, and shut down the hydraulic slide rail 110 device.

[0047] Step 7: Lock the mold to complete the positioning process.

[0048] Taking the rapid positioning and installation of the cutting mold for automotive shock absorber towers as an example, the specific implementation steps are as follows: 1. Equipment and mold processing: First, machine 8 M16 screw holes and 8 Φ12 pin holes on the hydraulic punch press base plate 100, with a center distance of 800mm.

[0049] Two first positioning blocks 310 with specifications of 100mm×80mm×50mm (material: No. 45 steel, surface hardened to HRC40-45, with positioning protrusions 311 machined on the first positioning blocks 310) are selected and fixed on the base plate 100 of the 1000kN hydraulic punch press by M16 bolts and Φ12 pin holes. The center distance between the two positioning blocks is 800mm. The vertical deviation between the protrusion of the first positioning block 310 (diameter 60mm, height 50mm) and the worktable surface is ≤0.02mm.

[0050] Corresponding to the position of the first positioning block 310, two second positioning blocks 320 (with an inner diameter of 60.02mm and a depth of 50mm, and a positioning groove 321 machined on the lower template 200 of the car shock absorber tower cutting mold (made of 45# steel) are installed. They are also double-fixed with bolts and pins to ensure that the parallelism between the second positioning block 320 and the reference surface of the lower template 200 of the cutting mold is ≤0.05mm.

[0051] 2. Positioning and fitting operation: Start the crane to slowly lift the trimming die weighing 1936kg above the hydraulic punch platen 100. Adjust the posture by using the lifting ring on the die so that the opening of the positioning groove 321 of the second positioning block 320 faces the first positioning block 310.

[0052] When the mold descends to 50mm from the worktable surface, the guide slope of the second positioning block 320 contacts the rounded corner (R30) at the top of the first positioning block 310, and automatically corrects the horizontal offset by gravity (maximum compensation of ±5mm deviation), and continues to descend the mold to achieve initial guiding and positioning.

[0053] 3. Adjustment and Fixing: Open the slide rail 110 on the hydraulic punch press, and manually push the die to make the inclined surface of the second positioning block 320 contact the inclined surface of the first positioning block 310 until the first positioning block 310 is completely embedded in the second positioning block 320. At this time, the gap between the two is 0.01-0.03mm, and the positioning is completed. Close the hydraulic slide rail 110 device.

[0054] The mold is fixed in the T-slot using M16 clamping bolts and nuts, with the tightening torque set at 350 N•m to prevent displacement during processing.

[0055] 4. Processing verification: Start the hydraulic punch press, set the stroke to 150mm and the punching speed to 30 times / minute, and perform edge trimming, slag removal and burr removal on the 1.5mm thick automotive shock absorber tower die-cast blank.

[0056] After processing 50 pieces continuously, the profile of the cut edge was checked by a coordinate measuring machine. The maximum deviation was 0.08mm, which met the drawing requirements (≤0.1mm). The entire mold change process took only 6 minutes, which is 78.6% more efficient than the traditional positioning method (28 minutes).

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An edge trim die mounting mechanism characterized by, include: Hydraulic punch press base plate; The trimming die lower template is installed on the hydraulic punch base plate; The positioning component includes a first positioning block and a second positioning block. The first positioning block is mounted on the base plate of the hydraulic punch press, and the second positioning block is mounted on the lower template of the trimming die. The first positioning block is provided with a positioning protrusion or a positioning groove, and the second positioning block is provided with a corresponding positioning groove or a positioning protrusion.

2. An edging die mounting mechanism according to claim 1, wherein The positioning component is provided in at least two sets, with the two second positioning blocks located at the same end of the lower template of the cutting mold.

3. An edging die mounting mechanism according to claim 1, wherein The positioning groove is an arc-shaped groove, and the positioning protrusion is an arc-shaped protrusion.

4. An edging die mounting mechanism according to claim 1, wherein The hydraulic punch press base plate is provided with a slide rail for supporting and guiding the lower template of the cutting die. The guiding direction of the slide rail is the direction of the center line connecting the first positioning block and the second positioning block.

5. An edging die mounting mechanism according to claim 1 wherein, The hydraulic punch press base plate is provided with rollers for supporting and guiding the lower template of the cutting die, and the guiding direction of the rollers is the direction of the center line connecting the first positioning block and the second positioning block.

6. An edging die mounting mechanism according to claim 1 wherein, The first positioning block is provided with a first connecting hole for the first bolt to pass through, and the hydraulic punching machine base plate is provided with a first threaded hole for the first bolt to pass through. The first positioning block is mounted on the hydraulic punching machine base plate by the first bolt.

7. An edging die mounting mechanism according to claim 6, wherein The first threaded hole is provided in multiple ways, and the multiple first threaded holes are evenly spaced along the line connecting the center of the first positioning block and the second positioning block.

8. An edging die mounting mechanism according to claim 1 wherein, The first positioning block is provided with a second connecting hole for the pin to pass through, and the hydraulic punch plate is provided with a third connecting hole for the pin to pass through.

9. An edging die mounting mechanism according to claim 1 wherein, The second positioning block is provided with a fourth connecting hole for the second bolt to pass through, and the lower template of the trimming die is provided with a second threaded hole for the second bolt to pass through. The second positioning block is installed on the lower template of the trimming die by the second bolt.

10. An edging die mounting mechanism according to claim 9, wherein The second positioning block is provided with an overlapping part, which overlaps with the lower template of the cutting die, and the fourth connecting hole is provided on the overlapping part.

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