Hydraulic motor plane indent forming die
By introducing a tilting and ejecting mechanism into the concave forming mold of the hydraulic motor plane, the problems of limited material picking space and safety risks are solved, enabling smooth picking and ejection of material, and improving the convenience and safety of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIHAI HUABANG FINE BLANKING
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-19
AI Technical Summary
Existing hydraulic motor-driven planar concave forming dies suffer from limited material picking space, safety risks, and difficulties in material ejection.
A mold structure including a lower mold base and an upper mold base was designed. A tilting mechanism and an ejection mechanism were adopted. The material sheet was picked up smoothly through the tilting and ejection mechanism. The tilting mechanism was used to increase the picking space, and the material sheet was ejected from the mold through the ejection mechanism.
This enabled the smooth picking and ejection of the material, reduced safety risks, and improved the convenience and efficiency of operation.
Smart Images

Figure CN224254072U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically a hydraulic motor planar concave forming die. Background Technology
[0002] A hydraulic motor planar concave forming mold is a special mold used to manufacture hydraulic motor housings or related components. Its core feature is that it uses high-pressure liquid as a force transmission medium to cause metal sheets or pipes to undergo plastic deformation within the mold, fitting into the cavity of the concave or convex mold to form complex geometric shapes.
[0003] Chinese patent CN221133822U discloses a planar concave forming mold for hydraulic motors. The mold includes a machine base with four fixed rods spaced equidistantly along its edge. Two guide rods are positioned opposite each other on the inner side of the fixed rods. Two first air ducts are positioned opposite each other within the gaps between the fixed rods and are fixed to the machine base. A stationary mold is mounted on the machine base, with a long groove in its center containing a top plate. The top plate is connected to an electric telescopic rod. Second air ducts and chip outlets are located on both sides of the electric telescopic rod. A frame plate extends through the top of the guide rods, and a moving mold is positioned in the middle of the frame plate. An upper plate is connected to the top of the guide rods and the top of the fixed rods. An electric stamping drive device is positioned above the upper plate. This invention designs a motor housing stamping mold with several cleaning air ducts, solving the problem of metal waste generated during stamping affecting subsequent stamping processes due to untimely cleaning.
[0004] The above-mentioned mold has the effect of cleaning metal scraps, but the existing mold requires the user to reach into the upper and lower molds to pick up the sheet material due to the mold structure. This not only limits the space but also poses a significant safety risk. In addition, the sheet material is tightly connected to the lower mold plate after stamping, making it impossible to guarantee that the sheet material will be ejected smoothly. Therefore, a hydraulic motor planar concave forming mold is needed. Utility Model Content
[0005] The purpose of this utility model is to provide a hydraulic motor planar concave forming mold to solve the problems of limited picking space for material sheets, significant safety risks, and difficulty in ejecting material sheets in existing molds.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic motor planar concave forming mold, comprising a lower mold base and an upper mold base, wherein an upper template is fixedly installed on the lower part of the upper mold base, and a tilting mechanism is provided between the lower mold base and the upper mold base; the tilting mechanism includes a lower left template and a lower right template, both of which are rotatably mounted on the lower mold base, and a guide rod is fixedly installed on one side of both the lower left and lower right templates; limit seats are fixedly installed on both sides of the upper template, and a traction rod is slidably installed through the limit seat; a buffer spring is fixedly installed between the traction rod and the limit seat.
[0007] Preferably, the lower left template and the lower right template are fixedly connected by several bolt groups, and both the lower left template and the lower right template are adapted to the upper template.
[0008] Preferably, a roller is rotatably mounted on one end of the traction rod, and the roller is embedded inside the guide rod.
[0009] Preferably, the lower part of the limiting seat has a groove, and the buffer spring is fixedly installed in the groove.
[0010] Preferably, a top-feeding mechanism is provided between the lower left template and the lower right template. The top-feeding mechanism includes an installation groove, which is opened inside the lower left template and the lower right template. An installation seat is fixedly installed in the installation groove. Electric telescopic rods are fixedly installed at both ends of the installation seat. Synchronizers are fixedly installed on the two electric telescopic rods, and a top rod is fixedly installed on the output end of the electric telescopic rod.
[0011] Preferably, the cross-sectional shape of the lower left template and the lower right template is L-shaped, and the mounting groove is formed through the lower left template and the lower right template.
[0012] Preferably, one end of the top rod is provided with an inclined surface, and both the lower left template and the lower right template are adapted to the inclined surface.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1) This is used for hydraulic motor planar concave forming mold. After the material sheet is stamped, the upper mold base is controlled to raise the upper template. The limit seat will move upward synchronously and drive the traction rod to move vertically upward, thereby pulling the guide rod to make the lower left template and the lower right template rotate relative to the lower mold base, thereby realizing the tilting of the material sheet and increasing the picking space of the material sheet.
[0015] 2) This is used for hydraulic motor planar concave forming mold. When the lower left and lower right templates are tilted, the two electric telescopic rods are further controlled to push the ejector rods upward under the action of the synchronizer, so that the ejector rods contact the material sheet and push the material sheet out from the lower left and lower right templates. With the tilting of the lower left and lower right templates, the material sheet can be freely separated from the mold. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a hydraulic motor planar concave forming mold according to an embodiment of the present utility model;
[0017] Figure 2 This is a cross-sectional view of the lower mold base in an embodiment of the present invention;
[0018] Figure 3 This is a cross-sectional view of the limiting seat in an embodiment of the present utility model;
[0019] Figure 4 As an embodiment of this utility model Figure 3 Enlarged view of A in the middle;
[0020] Figure 5 This is a cross-sectional view of the lower left and lower right templates in an embodiment of this utility model.
[0021] In the diagram: 1. Lower mold base; 2. Upper mold base; 3. Upper template; 4. Tilting mechanism; 401. Lower left template; 402. Lower right template; 403. Guide rod; 404. Limit seat; 405. Traction rod; 406. Buffer spring; 5. Ejector mechanism; 501. Mounting slot; 502. Mounting seat; 503. Electric telescopic rod; 504. Synchronizer; 505. Ejector rod. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1
[0024] Combination Figures 1-4A hydraulic motor planar concave forming mold includes a lower mold base 1 and an upper mold base 2. An upper template 3 is fixedly installed on the lower part of the upper mold base 2. A tilting mechanism 4 is provided between the lower mold base 1 and the upper mold base 2. The tilting mechanism 4 includes a lower left template 401 and a lower right template 402. The lower left template 401 and the lower right template 402 are rotatably installed on the lower mold base 1. A guide rod 403 is fixedly installed on one side of the lower left template 401 and the lower right template 402. Limit seats 404 are fixedly installed on both sides of the upper template 3. A traction rod 405 is slidably installed through the limit seat 404. A buffer spring 406 is fixedly installed between the traction rod 405 and the limit seat 404.
[0025] The lower left template 401 and the lower right template 402 are fixedly connected by several bolt groups, and both the lower left template 401 and the lower right template 402 are adapted to the upper template 3. A roller is rotatably installed at one end of the traction rod 405, and the roller is embedded in the guide rod 403. The lower part of the limiting seat 404 has a groove, and the buffer spring 406 is fixedly installed in the groove. In use, the material sheet is put into the upper part of the lower left template 401 and the lower right template 402, and the upper mold base 2 is further controlled to move downward so that the upper template 3 cooperates with the lower left template 401 and the lower right template 402. 2. The sheet material is stamped, during which the buffer spring 406 is compressed and enters the limiting seat 404. The limiting seat 404 moves downward relative to the traction rod 405. After the sheet material is stamped, when the upper die base 2 is controlled to raise the upper die plate 3, the limiting seat 404 will move upward synchronously and drive the traction rod 405 to move vertically upward, thereby pulling the guide rod 403 to make the lower left die plate 401 and the lower right die plate 402 rotate relative to the lower die base 1, thereby achieving the tilting of the sheet material, increasing the picking space of the sheet material, and also allowing the sheet material to freely detach from the die while being lifted.
[0026] Example 2
[0027] See Figure 5 A material-lifting mechanism 5 is provided between the lower left template 401 and the lower right template 402. The material-lifting mechanism 5 includes an installation groove 501, which is opened inside the lower left template 401 and the lower right template 402. An installation seat 502 is fixedly installed in the installation groove 501. Electric telescopic rods 503 are fixedly installed at both ends of the installation seat 502. Synchronizers 504 are fixedly installed on the two electric telescopic rods 503. A top rod 505 is fixedly installed on the output end of the electric telescopic rods 503.
[0028] The lower left template 401 and the lower right template 402 both have L-shaped cross sections. The mounting groove 501 is opened through the lower left template 401 and the lower right template 402. One end of the top rod 505 is provided with a slope, and the lower left template 401 and the lower right template 402 are adapted to the slope. When the lower left template 401 and the lower right template 402 are tilted, the two electric telescopic rods 503 are further controlled to push the top rod 505 upward under the action of the synchronizer 504, so that the top rod 505 contacts the material sheet and pushes the material sheet out from the lower left template 401 and the lower right template 402.
[0029] In actual operation, after the sheet is stamped, when the upper die base 2 is controlled to raise the upper die plate 3, the limit seat 404 will move upward synchronously and drive the traction rod 405 to move vertically upward, thereby pulling the guide rod 403 to make the lower left die plate 401 and the lower right die plate 402 rotate relative to the lower die base 1, thereby achieving the tilting of the sheet, increasing the picking space of the sheet, and at the same time, the sheet can be freely released from the mold when it is being lifted.
[0030] When the lower left template 401 and the lower right template 402 are tilted, the two electric telescopic rods 503 are further controlled to push the top rod 505 upward under the action of the synchronizer 504, so that the top rod 505 contacts the material sheet and pushes the material sheet out from the lower left template 401 and the lower right template 402.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hydraulic motor planar concave forming mold, comprising a lower mold base (1) and an upper mold base (2), wherein an upper template (3) is fixedly installed on the lower part of the upper mold base (2), characterized in that: A tilting mechanism (4) is provided between the lower mold base (1) and the upper mold base (2); The tilting mechanism (4) includes a lower left template (401) and a lower right template (402). The lower left template (401) and the lower right template (402) are rotatably mounted on the lower mold base (1). A guide rod (403) is fixedly installed on one side of the lower left template (401) and the lower right template (402). Limit seats (404) are fixedly installed on both sides of the upper template (3). A traction rod (405) is slidably installed through the limit seat (404). A buffer spring (406) is fixedly installed between the traction rod (405) and the limit seat (404).
2. The hydraulic motor planar concave forming mold according to claim 1, characterized in that: The lower left template (401) and the lower right template (402) are fixedly connected by several bolt groups, and both the lower left template (401) and the lower right template (402) are adapted to the upper template (3).
3. The hydraulic motor planar concave forming mold according to claim 1, characterized in that: One end of the traction rod (405) is rotatably mounted with a roller, and the roller is embedded inside the guide rod (403).
4. The hydraulic motor planar concave forming mold according to claim 1, characterized in that: The lower part of the limiting seat (404) is provided with a groove, and the buffer spring (406) is fixedly installed in the groove.
5. A hydraulic motor planar concave forming mold according to claim 2, characterized in that: A top-feeding mechanism (5) is provided between the lower left template (401) and the lower right template (402). The top-feeding mechanism (5) includes a mounting groove (501). The mounting groove (501) is opened inside the lower left template (401) and the lower right template (402). A mounting base (502) is fixedly installed in the mounting groove (501). Electric telescopic rods (503) are fixedly installed at both ends of the mounting base (502). Synchronizers (504) are fixedly installed on the two electric telescopic rods (503). A top rod (505) is fixedly installed on the output end of the electric telescopic rods (503).
6. A hydraulic motor planar concave forming mold according to claim 5, characterized in that: The cross-sectional shape of the lower left template (401) and the lower right template (402) is L-shaped, and the mounting groove (501) is opened through the lower left template (401) and the lower right template (402).
7. A hydraulic motor planar concave forming mold according to claim 6, characterized in that: One end of the top rod (505) is provided with an inclined surface, and both the lower left template (401) and the lower right template (402) are adapted to the inclined surface.