CN114346000A - A rib bone plate bending die - Google Patents

Abstract

The present application discloses a rib-bonding plate bending die, comprising: a fixing module installed on the working table of a press, which is used for positioning and fixing the rib-bonding plate and used for cavity forming; a pressing module, which is arranged on the The upper part of the fixed module is used for bending and overmolding the rib bone plate positioned on the fixed module; the driving module is installed on the press slider, which is used to control the movement track of the driving pressing module to complete the The bending action of the compression module on the rib plate. The bending over-molding of the rib bone plate can be completed on one mold, the cost of the mold is reduced, and the bending forming efficiency of the rib bone plate is also improved.

Description

A rib bone plate bending die

technical field

The present application relates to the technical field of bone plate manufacturing, and in particular, to a rib bone plate bending die.

Background technique

Bone plates are internal fixation devices for plate-like fractures with holes. It is often used in combination with bone screws or bone wires in clinical practice, and is divided into two types: ordinary bone plates and compression bone plates. When making rib bone plates, one arc of the rib plate is first punched and formed, and then the second arc is formed. Bending is performed to produce a rib plate.

In the related art, when bending and forming a rib bone plate, it is often necessary to use a mold for two bending forming. In this process, more than one mold may need to be used, which leads to an increase in the cost of the mold, and at the same time It also reduces the bending efficiency of the rib plate.

SUMMARY OF THE INVENTION

The present application provides a rib plate bending die, in order to solve the problem that in the related art, multiple molds need to be used to complete the bending and forming of the rib plate, which increases the cost of the mold and reduces the efficiency of the rib plate bending. The problem.

According to some embodiments, the present application provides a rib bone plate pressing and bending mold, comprising: a fixing module installed on the work table of the press, which is used for positioning and fixing the rib bone plate, and used for cavity forming; compression; The module is arranged above the fixed module, and is used for bending and overmolding the rib bone plate positioned on the fixed module; the driving module is installed on the press slider, which is used to control the driving and pressing module. Movement trajectory to complete the bending action of the compression module on the rib plate.

Preferably, the fixed module includes a fixed mold base, a core protrudes from the upper surface of the fixed mold base, the rib bone plate is attached and placed on the core, and the pressing module is moved until it is attached to the core. Realize the bending and overmolding of the rib bone plate according to the shape of the core.

Preferably, the pressing module includes a pressing plate and a side bending mechanism installed on both sides of the pressing plate and symmetrically arranged, and a cavity is provided on the side of the pressing plate facing the core. The cavity is adapted to the core, and the core is located in the cavity after the rib bone plate is bent and overmolded by the compression plate and the side-by-side bending and wrapping mechanism on both sides thereof.

Preferably, the side bending and wrapping mechanism includes a rotary pressing block rotatably arranged on the pressing plate, and the rotary pressing block is driven by the driving module to realize the rib alignment again after the pressing plate completes one pressing and bending. The second bending of the bone plate completes the cladding.

Preferably, the drive module includes a drive plate, the drive plate moves under the press slide block, a drive spring is connected between the drive plate and the pressing plate, and the drive plate rotates through the drive spring and the pressing plate. The pressing block realizes the movement of the driving pressing plate; the two sides of the driving plate facing the pressing plate are provided with driving inclined planes, one end of the rotating pressing block is in contact with the driving inclined plane, and the other end is rotated under the extrusion of the driving inclined plane. Bending and wrapping operation of rib plate.

Preferably, a shaft pin and a torsion spring are arranged between the rotary pressing block and the pressing plate, the rotary pressing block is rotatably connected to the pressing plate through the shaft pin, and the effect of the driving plate on the pressing plate is removed. When the force is applied, the torsion spring recovers the deformation and resets the rotating pressure block.

Preferably, a guide shaft is provided between the drive plate and the pressing plate, the guide shaft is located in the drive spring, the drive plate is provided with a guide hole for the guide shaft to slide, and one end of the guide shaft is fixed on the compression plate.

Preferably, the fixing module further includes a positioning device, the positioning device includes a positioning slide pin and a positioning nut, a positioning hole is formed on the side of the fixed mold base away from the core, and the positioning hole extends to penetrate the core ; An alignment hole is provided on the rib assembly plate, and when the rib assembly plate is attached and placed on the core, the end of the positioning slide pin is inserted into the alignment hole of the rib assembly plate from the positioning hole.

Preferably, the end of the positioning slide pin inserted into the alignment hole is set as an extrusion slope, and the positioning slide pin is squeezed when the rib bone plate after bending is slid out along the length direction of the core, so that the positioning The sliding pin retracts into the positioning hole.

Preferably, an elastic piece is provided between the positioning nut and the end of the positioning sliding pin, and the elastic piece is compressed when the positioning sliding pin is retracted into the positioning hole.

Embodiments of the present disclosure have at least the following advantages:

(1) The pressing module is driven by the driving module to move, so that the pressing module moves towards the fixed module. ;

(2) The positioning slide pins are used to realize the alignment of the fixed module and the rib bone plate, so as to facilitate the accurate bending of the rib bone plate and improve the yield of the product.

(3) The formed rib plate slides out along the axial direction of the core, and the operation is simple and convenient.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the traditional technologies, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some implementations of the present application. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the state structure schematic diagram before the work of a kind of rib bone plate bending die according to the embodiment of the present application;

Fig. 2 is the state structure schematic diagram of a kind of rib bone plate bending die after working in the embodiment of the present application;

Fig. 3 is the exploded schematic diagram of a kind of rib bone plate bending die in the embodiment of the present application;

Figure 4 is a schematic diagram of the comparison before and after the formation of the rib bone plate in the embodiment of the present application;

Fig. 5 is the side view of the rib bone plate after forming in the embodiment of the present application;

FIG. 6 is a schematic structural diagram of a positioning sliding pin in an embodiment of the present application.

Description of drawings: 1. Fixed module; 11. Fixed die base; 111. Positioning hole; 12. Core; 131. Positioning slide pin; 1311, Positioning column; side; 132, positioning nut; 2, pressing module; 21, pressing plate; 211, cavity; 22, rotating pressure block; 3, driving module; 31, driving plate; 311, driving slope; 32, driving spring; 4. Shaft pin; 41. Torsion spring; 5. Guide shaft; 6. Return spring.

Detailed ways

In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clear, each embodiment of the present application will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that, in each embodiment of the present application, many technical details are provided for the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can be realized. The following divisions of the various embodiments are for the convenience of description, and should not constitute any limitation on the specific implementation manner of the present application, and the various embodiments may be combined with each other and referred to each other on the premise of not contradicting each other.

Referring to FIG. 1 and FIG. 2 , the embodiment of the present application provides a rib bone plate bending die, including: a fixing module 1, a pressing module 2 and a driving module 3, which are arranged in sequence, and the fixing module 1 is installed in the pressure On the working table of the machine, it is used to position and fix the rib bone plate. The drive module 3 is installed on the press slide block, and the press slide block drives the drive module 3 to move so as to realize the movement of the compression module 2, and the compression module 2 faces The direction of the fixation module 1 is moved until the rib plate is bent and overmolded.

In some embodiments, the fixed module 1 includes a fixed mold base 11 , the fixed mold base 11 is set in a rectangular shape, a core 12 is protruded from the middle of the surface of the fixed mold base 11 , and the core 12 runs along the length of the fixed mold base 11 . The shape of the core 12 is adapted to the shape of the rib bone plate after bending and forming. When the rib plate needs to be bent, it is first placed on the core 12 and placed along the length direction of the core 12. Therefore, the core 12 serves as the support position of the rib plate and is covered with plastic for later bending.

In some embodiments, the pressing module 2 includes a pressing plate 21 and a side bending and covering mechanism. The side bending and covering mechanisms are arranged in two groups, and the two groups of side bending and covering mechanisms are symmetrically arranged in the compression On both sides of the plate 21, the pressing plate 21 is provided with a cavity 211 on the side facing the fixed die base 11. The cavity 211 is adapted to the core 12. When the pressing plate 21 is moved towards the core 12, the The compression plate 21 exerts pressure on the rib plate above the core 12, the bent part of the rib plate enters the cavity 211, and the two ends are vertically arranged. At this time, the first middle part of the rib plate is completed. Secondary bend.

Referring to FIG. 3 , in some embodiments, the second bending and covering of the rib bone plate after the first bending is realized by a side bending and covering mechanism, and the side bending and covering mechanism includes rotating The pressing block 22, the rotary pressing block 22 is set to be C-shaped, and the inner recess of the rotary pressing block 22 is rotatably connected to the side of the pressing plate 21 through the shaft pin 4, so that the rotary pressing blocks 22 on both sides of the pressing plate 21 can be mutually connected. close or open. When the ends of the two rotating pressing blocks 22 toward the core 12 are folded together, the rib bone plate will continue to be bent to complete the wrapping. After the wrapping is completed, the two rotating pressing blocks 22 are controlled to face the core 12 . The ends are opened to each other to complete the overall work of bending and cladding. The comparison diagrams of the rib joint plate before and after forming are shown in Figures 4 and 5. In Figure 4, a is the rib joint plate before forming, and b is the rib joint plate after forming. Since the formed rib bone plate L1>L2, in the embodiment of the present application, the compression plate 21 and the rotary pressure block 22 are designed separately, so that a compression, bending, wrapping and forming operation can be completed on one mold. The rib bone plate is taken out along the axial direction of the core 12, and the operation is simple and convenient.

In some embodiments, a torsion spring 41 is sleeved on the shaft pin 4, and when the driving module 3 exerts a force on the pressing plate 21, the rotating pressing block 22 will exert a deformation force on the torsion spring 41 while rotating, When the force of the driving module 3 is removed, the rotating pressing block 22 is reset under the torsion force of the torsion spring 41, so as to prepare for the next bending of the new rib plate.

In some embodiments, the driving module 3 includes a driving plate 31 and a driving spring 32, the driving spring 32 is located between the driving plate 31 and the pressing plate 21, and two ends of the driving spring 32 are respectively fixed on the driving plate 31 and the pressing plate 21 The distance between the driving plate 31 and the pressing plate 21 can be maintained by the driving spring 32, and the driving plate 31 can move to the pressing plate 21 side under the action of the press slider to complete the compression of the driving spring 32 to achieve The pressing plate 21 is pushed. In one example, the driving plate 31 can also be installed on the piston rod of a hydraulic cylinder with telescopic function, or other components with linear motion.

Referring to FIG. 2 and FIG. 3 , the drive plate 31 is provided with a drive slope 311 on the side facing the pressing plate 21 , and the drive slope 311 corresponds to the rotating pressing block 22 . In the process of moving the driving plate 31 to the pressing plate 21 , the end of the rotary pressing block 22 away from the core 12 abuts on the driving slope 311. When the driving plate 31 completes the first bending of the core 12 with the pressing plate 21 through the driving spring 32, it continues to move. , at this time, the driving slope 311 of the driving plate 31 will squeeze the rotating pressure block 22, the rotating pressure block 22 will rotate, and the extrusion end of the rotating pressure block 22 will slowly squeeze the vertical edge of the rib bone plate during the rotation. , so as to complete the coating.

In some embodiments, a guide shaft 5 is further provided between the drive plate 31 and the pressing plate 21 , the guide shaft 5 is located in the drive spring 32 , the drive plate 31 is provided with a guide hole for the guide shaft 5 to slide, and the guide shaft 5 One end extends into the guide hole, and the other end is fixed on the pressing plate 21.

In other embodiments, in order to place the rib bone plate more stably, the fixing module 1 further includes a positioning device, and two sets of positioning devices are arranged. The side surface of the core 12 is provided with a positioning hole 111 , the positioning hole 111 corresponds to the positioning device, and the positioning hole 111 extends through the core 12 . In one example, the positioning hole 111 is set as a stepped hole and includes extending to the core 12 A smaller hole on the upper end face and a larger hole connected to the lower end of the smaller hole.

3 and 6 , the positioning device includes a positioning slide pin 131 and a positioning nut 132. The positioning slide pin 131 is adapted to the positioning hole 111, and the positioning slide pin 131 includes a positioning post 1311 adapted to the smaller hole and a The fixing plate 1312 is adapted to the larger hole, wherein one end of the positioning column 1311 is fixed on the fixing plate 1312 and the two are arranged coaxially. In the quasi hole, the rib bone plate can be accurately placed by the positioning function of the positioning sliding pin 131 . An inner thread is provided on the inner peripheral wall of the larger end of the positioning hole 111 , and the positioning nut 132 is screwed into the positioning hole 111 , so as to realize the fixing of the positioning sliding pin 131 .

In one example, in order to limit the circumferential rotation of the positioning slide pin 131 in the positioning hole 111 , two flat sides 13121 are arranged on the side of the fixing plate 1312 , and the two flat sides 13121 are arranged opposite to each other, and the flat side 13121 is connected with the larger hole. Contact with the inner wall of the fixed plate 1312 to limit the circumferential rotation of the fixed disk 1312 .

In one example, a return spring 6 is provided between the fixed plate 1312 of the positioning slide pin 131 and the positioning nut 132. When the return spring 6 is in a natural state, the end of the positioning column 1311 protrudes out of the core 12 and is set There is a pressing slope 13111. When the rib bone plate after bending and overmolding is slid along the length direction of the core 12, the inner wall of the alignment hole of the rib bone plate exerts a force on the pressing slope 13111 of the positioning column 1311. The positioning post 1311 is retracted into the positioning hole 111, that is, the positioning post 1311 has no positioning effect on the rib bone plate, and the rib bone plate can be taken out smoothly at this time. During the process of retracting the positioning post 1311 into the positioning hole 111, the return spring 6 is compressed by the fixing plate 1312. After the rib plate is taken out, the return spring 6 pushes the positioning slide pin 131 back to the original position.

The implementation principle of this embodiment: First, place the rib plate on the core 12, and align the alignment holes of the rib plate with the positioning holes 111 of the core 12. At this time, position the positioning posts 1311 of the sliding pins 131. The positioning hole 111 is inserted into the alignment hole to realize the positioning and fixing operation, the return spring 6 is placed in the positioning hole 111, and the positioning sliding pin 131 is fixed by the positioning nut 132;

The driving plate 31 moves linearly in the direction of the pressing plate 21 under the action of the press slider. The driving plate 31 pushes the pressing plate 21 through the driving spring 32 while moving, and the pressing plate 21 moves until it is in contact with the pressing plate 21. When the rib plate is pressed down, the middle part of the rib plate is bent, and the bent part of the rib plate is located in the cavity 211, and the two ends of the rib plate are in a vertical state at this time;

At this time, the driving plate 31 continues to move linearly in the direction of the pressing plate 21. During this process, the driving slope 311 on the driving plate 31 will squeeze the abutting end of the rotary pressing block 22 to make the rotary pressing block 22 rotate. During the rotation, the pressing end of the rotating pressing block 22 will squeeze the vertical part of the rib bone plate until the driving plate 31 moves to fit with the pressing plate 21. At this time, the rib bone plate is completely covered, so that in a The bending and wrapping work is realized on the mold.

It should be understood that, the above-mentioned specific embodiments of the present application are only used to illustrate or explain the principles of the present application, but not to limit the present application. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present application shall be included within the protection scope of the present application. Furthermore, the appended claims of this application are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalents of such scope and boundaries.

Claims (10)

1. A rib bone plate bending die is characterized by comprising:

the fixing module (1) is arranged on the working table surface of the press machine, is used for positioning and fixing the rib bone fracture plate and is used for molding a cavity;

the compression module (2) is arranged above the fixing module (1) and is used for bending and cladding the rib bone fracture plate positioned on the fixing module (1);

and the driving module (3) is arranged on the press machine sliding block and is used for controlling the motion track of the driving compression module (2) so as to finish the bending action of the compression module (2) on the rib bone fracture plate.

2. The rib bone plate bending die according to claim 1, wherein the fixing module (1) comprises a fixing die holder (11), a core (12) protrudes from the fixing die holder (11), the rib bone plate is placed on the core (12) in a fitting manner, and the pressing module (2) moves to be fitted on the core (12) to realize the bending and cladding of the rib bone plate according to the shape of the core (12).

3. The rib bone plate bending die according to claim 2, wherein the compression module (2) comprises a compression plate (21) and symmetrically arranged side bending cladding mechanisms which are arranged on two sides of the compression plate (21), a cavity (211) is arranged on one side of the compression plate (21) facing the core (12), and the cavity (211) is matched with the core (12);

after the compression plate (21) and the side edge bending and cladding mechanisms on the two sides of the compression plate are used for performing compression bending and cladding on the rib bone fracture plate, the mold core (12) is positioned in the cavity (211).

4. The rib bone plate bending die according to claim 3, wherein the side bending cladding mechanism comprises a rotating pressing block (22) rotatably arranged on a pressing plate (21), and the rotating pressing block (22) is driven by the driving module (3) to achieve secondary bending cladding of the rib bone plate again after the pressing plate (21) completes primary bending.

5. The rib bone plate bending die according to claim 4, wherein the driving module (3) comprises a driving plate (31), the driving plate (31) is moved under a press ram, a driving spring (32) is connected between the driving plate (31) and the pressing plate (21), and the driving plate (31) is used for driving the pressing plate (21) to move through the driving spring (32) and the rotary pressing block (22);

the two sides of the driving plate (31) facing the pressing plate (21) are provided with driving inclined planes (311), one end of the rotating pressing block (22) is abutted to the driving inclined planes (311), and the other end of the rotating pressing block rotates under the extrusion of the driving inclined planes (311) to achieve bending and cladding operation of the rib bone fracture plate.

6. The rib bone plate bending die according to claim 5, wherein a shaft pin (4) and a torsion spring (41) are arranged between the rotating pressing block (22) and the pressing plate (21), the rotating pressing block (22) is rotatably connected to the pressing plate (21) through the shaft pin (4), and when the acting force of the driving plate (31) on the pressing plate (21) is removed, the torsion spring (41) restores to deform to reset the rotating pressing block (22).

7. The rib bone plate bending die according to claim 5, wherein a guide shaft (5) is arranged between the driving plate (31) and the pressing plate (21), the guide shaft (5) is positioned in a driving spring (32), the driving plate (31) is provided with a guide hole for the guide shaft (5) to slide, and one end of the guide shaft (5) is fixed on the pressing plate (21).

8. The rib bone plate bending die according to claim 2, wherein the fixing module (1) further comprises a positioning device, the positioning device comprises a positioning sliding pin (131) and a positioning nut (132), a positioning hole (111) is formed in one side, facing away from the core (12), of the fixing die holder (11), and the positioning hole (111) extends to penetrate through the core (12); the rib bone fracture plate is provided with alignment holes, and when the rib bone fracture plate is placed on the mold core (12) in an attaching mode, the end portions of the positioning sliding pins (131) are inserted into the alignment holes of the rib bone fracture plate from the positioning holes (111).

9. The rib plate bending die according to claim 8, wherein the end of the positioning slide pin (131) inserted into the alignment hole is provided with a pressing slope (13111), and the positioning slide pin (131) is pressed when the rib plate after bending is slid out along the length direction of the core (12), so that the positioning slide pin (131) retracts into the positioning hole (111).

10. The rib plate bending die according to claim 9, wherein an elastic member is disposed between the positioning nut (132) and the end of the positioning slide pin (131), and the elastic member is compressed when the positioning slide pin (131) retracts into the positioning hole (111).

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