Medical mechanical joint metal plate processing jig

Abstract

The utility model discloses a medical mechanical joint metal plate machining jig, and belongs to the field of mechanical joint machining jigs. The medical mechanical joint metal plate machining jig comprises a machining table and a guide rod mounting plate, guide rods are fixed to the periphery of the top of the machining table, the mounting plate is fixed to the tops of the guide rods, the medical mechanical joint metal plate machining jig further comprises a lower die fixed to the top of the machining table, and a material ejecting part is arranged in the lower die; the pressure plate slides up and down along the guide rods, and a punching part is arranged in the pressure plate; through the arrangement of the pressure plate, the punching cavity, the punching rod and the slag discharging groove, waste generated during punching is collected firstly, splashing of the waste is avoided, cleanliness is improved, fast-flowing airflow can be generated on the punching rod to take away heat generated by friction during punching of the punching rod, durability of the punching rod is improved, and the service life of the punching rod is prolonged. And meanwhile, the fluency of the slag discharge groove is also ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical joint processing fixtures, in particular to a processing fixture for metal plates of medical mechanical joints. Background Art

[0002] Medical mechanical joints generally refer to high-precision and high-reliability artificial joints used in medical robots, surgical instruments, rehabilitation equipment, and other medical devices. In medical mechanical joints, the components processed from metal plates mainly include types such as fixing plates, outer shells, shields, positioning plates, guiding plates, bone plates, and adjusting plates. The bone plate is a commonly used implant instrument in orthopedic surgeries, mainly used for internal fixation of fractures. It is a flat and curved metal plate with multiple holes for inserting bone screws to fix the broken bones together and promote fracture healing. The production steps of the bone plate are generally summarized as follows: cutting of the flat metal plate, shaping and punching, and surface treatment.

[0003] Currently, during the process of shaping and punching the bone plate, punching waste will be generated, reducing the cleanliness of the processing area. Moreover, during continuous punching, the punching rod will generate high heat due to friction, easily causing thermal wear of the punching rod, thereby reducing the durability of the punching rod. Therefore, a processing fixture for metal plates of medical mechanical joints is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the prior art: generating punching waste, reducing the cleanliness of the processing area; and the heat generated by the punching rod due to friction, which easily causes thermal wear of the punching rod, and to propose a processing fixture for metal plates of medical mechanical joints.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A processing fixture for metal plates of medical mechanical joints, including a processing table and a guide rod mounting plate. The guide rods are fixed around the top of the processing table, and the mounting plate is fixed on the top of the guide rods. It further includes: a lower die fixed on the top of the processing table, and a blank ejecting part is arranged inside the lower die; a pressure plate sliding up and down along the guide rods, and a punching part is arranged inside the pressure plate.

[0007] For convenient unloading, preferably, the blanking part includes a blanking rod. A lower die groove is formed at the top of the lower die. A plurality of retraction grooves are formed at the bottom of the lower die groove. A sliding plate is slidably connected in the retraction groove. The bottom end of the blanking rod is fixedly connected to the top of the sliding plate. The top end of the blanking rod penetrates through the retraction groove and extends into the lower die groove. A blanking spring is sleeved on the outer wall of the blanking rod in the lower cavity of the retraction groove, and both ends of the blanking spring are fixedly connected to the inner top of the retraction groove and the bottom end of the blanking rod respectively.

[0008] For convenient slag discharge, preferably, a slag discharge groove is formed through the middle of the blanking rod and the sliding plate, and the slag discharge groove communicates with the inner cavity of the retraction groove.

[0009] Further, a collection groove is formed in the processing table. A plug is inserted into the output port of the collection groove, and the collection groove communicates with the bottom end of the retraction groove.

[0010] To improve the stamping accuracy, preferably, a limiting slider is slidably sleeved on the guiding rod. The limiting slider is fixedly connected to the side wall of the pressure plate, and two groups of limiting sliders are symmetrically arranged along the center of the pressure plate.

[0011] For convenient die pressing, preferably, a hydraulic telescopic rod is fixedly connected to the top of the mounting plate. The telescopic end of the hydraulic telescopic rod is fixedly connected to the top of the pressure plate. The punching part includes an upper die, and the upper die is fixed to the bottom of the pressure plate. The upper die is aligned with the lower die groove vertically and has a matching shape and size.

[0012] For convenient punching, preferably, a stamping cavity is formed in the pressure plate. A stamping plate is slidably connected in the stamping cavity. Stamping telescopic rods are fixedly connected to both sides of the top of the pressure plate. The telescopic ends of the stamping telescopic rods penetrate into the stamping cavity and are fixedly connected to the top of the pressure plate. A punching groove is formed at the bottom of the stamping cavity. A stamping rod is fixedly connected to the bottom of the stamping plate.

[0013] Further, the punching groove is aligned with the blanking rod and has a matching number. The stamping rod is aligned with the punching groove and has a matching number. The outer diameter of the stamping rod is smaller than the inner diameter of the punching groove, and the outer diameter of the stamping rod is smaller than the inner diameter of the slag discharge groove.

[0014] Compared with the prior art, the present utility model provides a processing fixture for medical mechanical joint metal plates, having the following beneficial effects:

[0015] 1. The processing jig for the metal plate of the medical mechanical joint, through the settings of the pressure plate, stamping cavity, stamping rod and slag discharge groove, first collects the waste generated during punching, avoids the splashing of waste, improves the cleanliness, and secondly can generate a rapidly flowing air flow in the stamping rod, taking away the heat generated by friction during the punching of the stamping rod, improving the durability of the stamping rod, and at the same time ensuring the smoothness of the slag discharge groove.

[0016] 2. The processing jig for the metal plate of the medical mechanical joint, through the cooperation between the ejector rod and the ejector spring, after the processing is completed, under the action of the springback of the ejector spring, the ejector rod will move up and reset, thereby ejecting the processed product out of the lower die cavity, facilitating the taking of materials and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is the schematic diagram of the overall front view structure of the processing jig for the metal plate of the medical mechanical joint proposed by the present utility model;

[0018] Figure 2 FIG. is the schematic diagram of the side view semi-sectional structure of the processing jig for the metal plate of the medical mechanical joint proposed by the present utility model;

[0019] Figure 3 FIG. is the schematic diagram of the bottom view partial sectional structure of the processing jig for the metal plate of the medical mechanical joint proposed by the present utility model;

[0020] Figure 4 FIG. is the schematic diagram of the internal structure of the lower die cavity of the processing jig for the metal plate of the medical mechanical joint proposed by the present utility model.

[0021] In the figure: 1, processing table; 2, guide rod; 3, mounting plate; 31, hydraulic telescopic rod; 4, lower die; 41, lower die cavity; 5, pressure plate; 51, limit slider; 6, ejector rod; 61, retraction groove; 62, sliding plate; 63, ejector spring; 64, slag discharge groove; 7, collection groove; 71, plug; 8, upper die; 9, stamping cavity; 91, stamping plate; 92, stamping telescopic rod; 93, punching groove; 94, stamping rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] Embodiment:

[0025] Referring to Figures 1-4 , a processing jig for a medical mechanical joint metal plate, comprising a processing table 1, a guide rod 2, and a mounting plate 3. The guide rod 2 is fixed around the top of the processing table 1, and the mounting plate 3 is fixed at the top of the guide rod 2. It further includes: a lower die 4 fixed on the top of the processing table 1, and a blanking portion is provided in the lower die 4; a pressure plate 5 that slides up and down along the guide rod 2, and a punching portion is provided in the pressure plate 5.

[0026] Referring to Figure 2 and Figure 3 , wherein, the blanking portion includes a blanking rod 6. A lower die groove 41 is opened at the top of the lower die 4, and a plurality of retraction grooves 61 are opened at the bottom of the lower die groove 41. The retraction grooves 61 are preferably seven groups. A sliding plate 62 is slidably connected in the retraction grooves 61. The bottom end of the blanking rod 6 is fixedly connected to the top of the sliding plate 62. The top end of the blanking rod 6 penetrates through the retraction grooves 61 and extends into the lower die groove 41. A blanking spring 63 is sleeved on the outer wall of the blanking rod 6 in the lower cavity of the retraction grooves 61, and both ends of the blanking spring 63 are fixedly connected to the inner top of the retraction grooves 61 and the bottom end of the blanking rod 6 respectively. The tops of the plurality of blanking rods 6 are kept on the same plane, and the distance from the top of the blanking rod 6 to the top of the lower die groove 41 is equal to the thickness of the metal plate. As described above, it is convenient to place the metal plate raw material into the lower die groove 41, and after processing, the blanking rod 6 will move up and reset under the rebound action of the blanking spring 63, so as to eject the processed product out of the lower die groove 41, thereby facilitating material taking and improving processing efficiency.

[0027] Referring to Figures 1-3, wherein, a limiting slider 51 is slidably sleeved on the guiding rod 2, the limiting slider 51 is fixedly connected to the side wall of the pressure plate 5, and two groups of limiting sliders 51 are symmetrically arranged along the center of the pressure plate 5; a hydraulic telescopic rod 31 is fixedly connected to the top of the mounting plate 3, the telescopic end of the hydraulic telescopic rod 31 is fixedly connected to the top of the pressure plate 5, the punching part includes an upper die 8, and a matching arc design is provided between the bottom of the upper die 8 and the bottom of the lower die groove 41. The upper die 8 is fixed to the bottom of the pressure plate 5, the upper die 8 is vertically aligned with the lower die groove 41 and their shapes and sizes are adapted to each other. The hydraulic telescopic rod 31 pushes the pressure plate 5 to move downward, so that the upper die 8 contacts the metal plate, and then the upper die 8 pushes the metal plate into the lower die groove 41, and makes the ejector rod 6 move down to the retraction groove 61. Finally, under the pressure of the upper die 8, the metal plate will be attached to the bottom of the lower die groove 41, so that the metal plate is pressed and deformed to form a bending structure same as the bottom of the lower die groove 41, thereby completing the die pressing and forming process.

[0028] Refer to Figures 2-4 , wherein, a slag discharge groove 64 is formed through the middle of the ejector rod 6 and the sliding plate 62, and the slag discharge groove 64 is communicated with the inner cavity of the retraction groove 61; a collection groove 7 is formed in the processing table 1, and the collection groove 7 is inclined to facilitate the discharge of the collected waste. A plug 71 is inserted into the output port of the collection groove 7, and the collection groove 7 is communicated with the bottom end of the retraction groove 61; a punching cavity 9 is formed in the pressure plate 5, a punching plate 91 is slidably connected in the punching cavity 9, both sides of the top of the pressure plate 5 are fixedly connected with punching telescopic rods 92, the telescopic ends of the punching telescopic rods 92 penetrate into the punching cavity 9 and are fixedly connected to the top of the pressure plate 5, a punching hole groove 93 is formed at the bottom of the punching cavity 9, and a punching rod 94 is fixedly connected to the bottom of the punching plate 91; the punching hole groove 93 is aligned with the ejector rod 6 and their numbers are matched, the punching rod 94 is aligned with the punching hole groove 93 and their numbers are matched, the outer diameter of the punching rod 94 is smaller than the inner diameter of the punching hole groove 93, and the outer diameter of the punching rod 94 is smaller than the inner diameter of the slag discharge groove 64. As described above, the punching rod 94 can pass through the punching hole groove 93 and be inserted into the slag discharge groove 64, so as to push the waste generated by punching into the slag discharge groove 64 and fall into the collection groove 7. Moreover, during the process of the punching plate 91 quickly pressing down along the punching cavity 9, the cavity at the bottom of the punching cavity 9 will be compressed, so that this part of the air flow blows downward along the punching hole groove 93, thereby being able to take away the frictional heat generated by the punching rod 94 during punching, improving the durability of the punching rod 94, and the air flow will also flow into the collection groove 7 along the slag discharge groove 64, enabling the chip waste generated by punching to quickly enter the collection groove 7, improving the slag discharge effect while reducing the possibility of blockage of the slag discharge groove 64 and improving the smoothness of slag discharge.

[0029] Refer to Figures 1-4, in the present utility model, during use, the cut metal sheet is placed into the lower die groove 41. At this time, the sheet will be lifted by multiple ejector rods 6. Then, the hydraulic telescopic rod 31 pushes the pressure plate 5 downward, causing the upper die 8 to contact the metal sheet. Subsequently, the upper die 8 pushes the metal sheet into the lower die groove 41 and makes the ejector rods 6 move downward into the retraction groove 61. Finally, under the pressure of the upper die 8, the metal sheet will be attached to the bottom of the lower die groove 41, causing the metal sheet to be deformed under pressure and form a bending structure identical to the bottom of the lower die groove 41, thereby completing the die pressing and forming process. Then, the stamping telescopic rod 92 pushes the stamping plate 91 to quickly press downward, generating an impact force, causing the stamping rod 94 to penetrate through the punching groove 93 and punch the metal sheet, completing the punching process of the mounting holes on the metal plate surface. And after the stamping rod 94 punches through the metal sheet, it will be inserted into the slag discharge groove 64 along the way. At this time, the waste generated by punching will enter the slag discharge groove 64 and finally fall into the collection groove 7. Moreover, during the process of the stamping plate 91 quickly pressing downward along the stamping cavity 9, the cavity at the bottom of the stamping cavity 9 will be compressed, causing this part of the airflow to blow downward along the punching groove 93, thereby being able to carry away the frictional heat generated by the stamping rod 94 during the punching process, improving the durability of the stamping rod 94. And the airflow will also flow into the collection groove 7 along the slag discharge groove 64, enabling the debris waste generated by punching to quickly enter the collection groove 7, improving the slag discharge effect while reducing the possibility of blockage of the slag discharge groove 64 and improving the smoothness of slag discharge; when the processing is completed, the hydraulic telescopic rod 31 drives the pressure plate 5 to reset. At this time, the ejector rods 6 will also move upward and reset under the rebound action of the ejector springs 63, thereby ejecting the processed product out of the lower die groove 41, facilitating material taking and improving the processing efficiency.

[0030] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. Medical mechanical joint metal sheet processing fixture, including a processing table (1), a guide rod (2) and a mounting plate (3). The guide rod (2) is fixed around the top of the processing table (1), and the mounting plate (3) is fixed on the top of the guide rod (2). It is characterized in that, It further includes: A lower die (4) fixed to the top of the processing table (1), and a blank ejecting part is arranged inside the lower die (4); A pressure plate (5) sliding up and down along the guide rod (2), and a punching part is arranged inside the pressure plate (5).

2. The processing fixture for the metal plate of the medical mechanical joint according to claim 1, wherein The blank ejecting part includes a blank ejecting rod (6). A lower die groove (41) is formed at the top of the lower die (4). A plurality of retraction grooves (61) are formed at the bottom of the lower die groove (41). A sliding plate (62) is slidably connected inside the retraction groove (61). The bottom end of the blank ejecting rod (6) is fixedly connected to the top of the sliding plate (62). The top end of the blank ejecting rod (6) penetrates through the retraction groove (61) and extends into the lower die groove (41). A blank ejecting spring (63) is sleeved on the outer wall of the blank ejecting rod (6) located in the lower cavity of the retraction groove (61), and both ends of the blank ejecting spring (63) are fixedly connected to the inner top of the retraction groove (61) and the bottom end of the blank ejecting rod (6) respectively.

3. The medical mechanical joint metal sheet processing fixture according to claim 2, wherein, A slag discharging groove (64) is formed through the middle of the blank ejecting rod (6) and the sliding plate (62), and the slag discharging groove (64) is communicated with the inner cavity of the retraction groove (61).

4. The processing fixture for medical machine joints of metal plates according to claim 3, characterized in that, A collection groove (7) is formed inside the processing table (1). A plug (71) is inserted into the output port of the collection groove (7), and the collection groove (7) is communicated with the bottom end of the retraction groove (61).

5. The processing fixture for the metal plate of the medical mechanical joint according to claim 1, wherein A limit slider (51) is slidably sleeved on the guide rod (2). The limit slider (51) is fixedly connected to the side wall of the pressure plate (5), and two groups of the limit sliders (51) are symmetrically arranged along the center of the pressure plate (5).

6. The processing fixture for the metal plate of the medical mechanical joint according to claim 1, characterized in that, A hydraulic telescopic rod (31) is fixedly connected to the top of the mounting plate (3). The telescopic end of the hydraulic telescopic rod (31) is fixedly connected to the top of the pressure plate (5). The punching part includes an upper die (8). The upper die (8) is fixed to the bottom of the pressure plate (5). The upper die (8) is aligned with the lower die groove (41) up and down and has a matching shape and size.

7. The medical device joint metal sheet processing fixture according to claim 3, characterized in that, A punching cavity (9) is formed inside the pressure plate (5). A punching plate (91) is slidably connected inside the punching cavity (9). Both sides of the top of the pressure plate (5) are fixedly connected with punching telescopic rods (92). The telescopic ends of the punching telescopic rods (92) penetrate into the punching cavity (9) and are fixedly connected to the top of the pressure plate (5). A punching hole groove (93) is formed at the bottom of the punching cavity (9). A punching rod (94) is fixedly connected to the bottom of the punching plate (91).

8. The processing fixture for the medical mechanical joint metal sheet according to claim 7, wherein The punching hole groove (93) is aligned with the blank ejecting rod (6) and has a matching number. The punching rod (94) is aligned with the punching hole groove (93) and has a matching number. The outer diameter of the punching rod (94) is smaller than the inner diameter of the punching hole groove (93). The outer diameter of the punching rod (94) is smaller than the inner diameter of the slag discharging groove (64).

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