Bone cutting device and method for reducing aggregate waste

Abstract

The present invention relates to the field of frozen bone cutting, and provides a bone cutting device and method for reducing aggregate waste. It includes a visual detection camera, a fixed vertical saw, a base, a tray, a transverse platform, a bone pressing mechanism, a support plate, a tightening mechanism and an angle adjustment mechanism. The transverse platform is provided with a strip avoidance hole, and the tightening and angle adjustment mechanisms are arranged on both sides. The top of one end has a placement area with anti-slip lines, the base is equipped with a pushing mechanism, and the other end has a translationally movable baffle. The advantages of the present invention are significant. Compared with the traditional bone cutting method, the precise camera scanning and intelligent control system are used to plan the path, which can cut more qualified bone strips, improve the yield rate, reduce aggregate waste, and reduce costs; compared with the traditional device, the multi-fixed adjustment mechanism ensures the stability of the frozen bone, improves the cutting accuracy, and reduces the defective rate; compared with the traditional equipment, the flexible transverse platform and the precise baffle mechanism cooperate with the control system to improve the convenience and adaptability of operation and improve efficiency.

Description

Technical Field

[0001] The invention relates to the field of frozen bone cutting, and in particular to a bone cutting device and a method thereof for reducing aggregate waste. Background Art

[0002] In the meat processing industry, especially in the process of frozen bone processing, the traditional bone cutting method has long had many disadvantages, which has brought considerable troubles to enterprises. In the past, the conventional equal-width cutting method dominated, and this one-size-fits-all model completely ignored the characteristics of the different shapes of the frozen bones themselves. Operators often simply placed the frozen bones on the cutting table and then used a fixed-width knife to cut them. Due to the natural irregularity of frozen bones, such as some frozen bones are triangular, with a great difference in width between the vertex and the opposite side, and some frozen bones have complex shapes such as bending, unevenness, etc., the use of equal-width cutting will inevitably lead to uneven lengths of the cut bone strips. Short bone strips cannot meet the standards for subsequent processing or sales and can only be treated as waste, resulting in a large amount of waste of precious aggregates and greatly reducing the utilization rate of raw materials. Moreover, the uneven bone strips have poor appearance and lack competitiveness in the market, affecting the added value of the product.

[0003] From the perspective of processing efficiency, the traditional cutting method lacks flexibility. Every time a batch of frozen bones of different shapes is replaced, the operator needs to spend a lot of time to adjust the tool position and angle, and sometimes even needs to rely on experience to manually test the cutting. The process is cumbersome and time-consuming. At the same time, because the frozen bones are not firmly fixed during the cutting process, they are prone to displacement. On the one hand, it will lead to a decrease in cutting accuracy and produce more defective products. On the other hand, it may also cause safety hazards and threaten the personal safety of operators. Furthermore, the traditional cutting device does not have precise planning for the cutting path and is completely blind cutting, which further aggravates the problems of aggregate waste, low yield and low efficiency, seriously restricting the production efficiency of the enterprise and the development of the industry. An innovative bone cutting device is urgently needed to break this dilemma. Summary of the invention

[0004] Based on this, it is necessary to provide a bone cutting device and method for reducing aggregate waste in view of the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] A bone cutting device for reducing bone waste comprises a visual detection camera and a fixed jigsaw, and also comprises a base, a tray arranged at the top of one end of the base, a transverse moving platform arranged at the top of the other end of the base, a bone pressing mechanism arranged above the transverse moving platform, a backing plate arranged at the top of the transverse moving platform for supporting frozen bones, a pressing mechanism arranged at one side of the top of the transverse moving platform for pressing the frozen bones against the backing plate, and an angle adjustment mechanism arranged at a side of the top of the transverse moving platform away from the pressing mechanism for adjusting the horizontal rotation angle of the backing plate, wherein the transverse moving platform is provided with a groove for avoiding The strip avoidance hole of the jigsaw is formed, and the clamping mechanism and the angle adjustment mechanism are respectively located on both sides of the strip avoidance hole; a placement area with anti-slip patterns is arranged on the top of one end of the transverse moving platform close to the tray; a pushing mechanism for driving the tray to move above the placement area is arranged on the base; a baffle plate which can be translated to one end of the placement area is also arranged on the side of the top of the transverse moving platform away from the tray; both the baffle plate and the placement area are located on the same side of the strip avoidance hole; and the visual detection camera is arranged above the tray to detect and identify the contour shape of the frozen bone.

[0007] Furthermore, the clamping mechanism includes a horizontal support plate and a plurality of anti-slip pressure blocks distributed on the side of the horizontal support plate facing the support plate, the horizontal support plate is located above the placement area, and a first slide rail for slidingly connecting the outer end of the horizontal support plate is fixedly provided at the bottom of the transverse movement platform, and the horizontal support plate and the first slide rail are horizontally connected in a "U-shape", and the transverse movement platform is located between the horizontal support plate and the first slide rail, and a first rack fixedly connected to the horizontal support plate is also provided on one side of the first slide rail, and a first motor is fixedly provided at the bottom of the transverse movement platform, and a first gear meshing with the first rack is provided on the output shaft of the first motor.

[0008] Furthermore, a long-axis cylinder is arranged on the horizontal support plate and is vertically oriented toward the strip avoidance hole. A strip plate for pressing one end of the small head of the frozen bone is fixedly connected to the output shaft of the long-axis cylinder, and the end of the strip plate is formed with anti-slip serrations.

[0009] Furthermore, the base is provided with a second slide rail for connecting to the transverse platform, the base is fixedly provided with a second motor, the output shaft of the second motor is connected with a second gear, and the bottom of the transverse platform is also provided with a second rack meshing with the second gear, and the length direction of the second rack is consistent with the length direction of the second slide rail.

[0010] Furthermore, a double-rod cylinder is fixedly arranged on the top of the transverse platform for driving the baffle to translate. When the baffle is between the back plate and the strip plate, one end of the small head of the frozen bone is pressed against the baffle by the anti-slip serrations.

[0011] Furthermore, a translation mechanism for adjusting the angle of the mechanism to move closer to or away from the frozen bone is provided on the top of the transverse platform, and the angle adjustment mechanism includes an L-shaped base plate, a hollow threaded motor and an angle detection sensor. The L-shaped base plate is provided on the translation output end of the translation mechanism, and one end of the support plate is axially connected to the outer end of the short side of the L-shaped base plate. The angle detection sensor is provided at the axial connection between the support plate and the L-shaped base plate. The hollow threaded motor is axially connected to the long side of the L-shaped base plate through a rotating motor bracket. An articulated seat is provided on the back side of the free end of the support plate, and a connector is axially connected to the articulated seat. A long screw rod is fixedly connected to the free end of the connector, and the long screw rod passes through the hollow threaded motor and is threadedly matched with the motor.

[0012] Furthermore, a cylindrical socket is formed at the free end of the connector, a plug is formed at one end of the long screw rod to match the cylindrical socket, an inward-recessed top screw groove is formed on the cylindrical wall of the plug, and headless screws for tightening the top screw groove are screwed on the upper and lower ends of the connector. The angle detection sensor is fixedly arranged at the bottom of the L-shaped base plate, and the support plate and the L-shaped base plate are hinged by a vertical axis, and the detection axis of the angle detection sensor is upwardly plugged into the bottom of the vertical axis.

[0013] Furthermore, a 3D camera for detecting three-dimensional spatial data of the frozen bone surface is arranged above the placement area. The bone pressing mechanism includes a rectangular support seat and a plurality of pressing needles distributed in a rectangular array in the rectangular support seat. The lower ends of the pressing needles extend vertically downward from the bottom of the rectangular support seat and contact the frozen bone. An adjustment mechanism is arranged above each of the pressing needles, which can pre-adjust the bottoming and pressing stroke of the pressing needle according to the detection data of the 3D camera.

[0014] Furthermore, the adjusting mechanism comprises a micro motor, a threaded rod, a threaded column and a spring which are arranged in sequence from top to bottom, and a plurality of cylindrical through holes for accommodating the movement of the adjusting mechanism are formed in the rectangular support seat, the micro motor is fixedly arranged on the top of the rectangular support seat and its output shaft extends downward into the cylindrical through hole below, the output shaft of the micro motor is fixedly connected to the top of the threaded rod through a micro coupling, the lower half of the threaded rod is screwed into the inner hole of the threaded column, a positioning column for the upper end of the spring is formed at the lower end of the threaded column, the length of the positioning column is greater than the length of the spring at the limit compression, a sliding column which is slidably arranged in the cylindrical through hole is formed at the top of the pressure needle, the lower end of the spring is pressed against the top of the sliding column, a strip limiting groove is formed on the inner wall of the upper half of the cylindrical through hole, and a sliding strip which matches the strip limiting groove is provided on the outer wall of the threaded column.

[0015] A bone cutting method, the method comprising the following steps:

[0016] S1, preparation stage: the frozen bones to be cut are placed stably on the tray to ensure that the placement of the frozen bones does not affect subsequent operations. At this time, all components are in the initial state, such as the transverse platform is in the initial position, and the tightening mechanism and baffle are not started;

[0017] S2, loading and fixing: start the pushing mechanism on the base, and the tray carrying the frozen bones moves accurately to the top of the placement area of ​​the transverse platform. At the same time, the bone pressing mechanism slowly moves down to contact the frozen bones, and then the tray is quickly pulled out, and the frozen bones are firmly fixed in the placement area;

[0018] S3, planning the cutting path: the control system uses an algorithm to plan the optimal cutting path for the current frozen bone shape based on the data transmitted by the visual detection camera, and at the same time determines whether the support plate angle needs to be adjusted according to the frozen bone shape. If necessary, the angle adjustment mechanism adjusts the support plate to a suitable angle;

[0019] S4, preliminary cutting preparation: according to the cutting path, if the frozen bone has a special shape (such as a triangle), the baffle is translated to between the support plate and the strip plate, and the action of the tightening mechanism fixes the frozen bone to prevent the cutting from starting from the key position (such as the vertex of the triangle);

[0020] S5, preliminary cutting: the fixed jigsaw is started and preliminary cutting is performed according to the planned path. During the cutting process, the fixed parts ensure the stability of the frozen bones. At this time, the strip avoidance holes provide space for the operation of the jigsaw. The cut bones will fall from the strip avoidance holes. An inclined bucket is provided below to receive the materials. The waste generated by the cutting is collected by a special collection device.

[0021] S6, preparation for full-length cutting: after the preliminary cutting is completed, the control system controls the baffle to move and withdraw, and the pressing mechanism further presses the frozen bone completely against the supporting plate to ensure that the frozen bone will not shift during full-length cutting;

[0022] S7, full-length cutting: the jigsaw continues to work, cutting full-length bone strips according to the planned path, and the cut bones fall from the strip-shaped avoidance holes and are collected by the inclined bucket;

[0023] S8, cutting completed: When all planned cutting tasks are completed, the jigsaw stops working and all components are reset, such as the transverse platform returns to the initial position and the bone pressing mechanism is lifted to complete a complete frozen bone cutting process.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] First, compared with the traditional bone cutting method, the present invention can cut more bone strips that meet the standards through precise camera scanning and intelligent control system planning of cutting paths, greatly improve the yield rate, effectively reduce aggregate waste, and reduce enterprise costs;

[0026] Secondly, compared with the traditional device, the present invention is equipped with multiple sophisticated fixing and adjusting mechanisms, such as tightening, angle adjustment, bone pressing mechanism, etc., which can fully guarantee the stability of frozen bones, greatly improve the cutting accuracy, and significantly reduce the probability of defective products;

[0027] Thirdly, compared with traditional bone cutting equipment, the present invention uses a flexible lateral movement platform and a precise baffle moving mechanism, in conjunction with a coordinated control system, to facilitate responding to various cutting needs, improve operational convenience and device adaptability, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The three-dimensional structure of the bone cutting device of the present invention is shown in FIG. Figure 1 ;

[0029] Figure 2 yes Figure 1 A schematic diagram of the structure enlargement at point A;

[0030] Figure 3 The three-dimensional structure of the bone cutting device of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 4 yes Figure 3 A schematic diagram of the structure at B in FIG.

[0032] Figure 5 It is a front view of the present invention;

[0033] Figure 6 yes Figure 5 A schematic diagram of the structure at position C in FIG.

[0034] Figure 7 is a top view of the present invention;

[0035] Figure 8 is a side view of the present invention;

[0036] Fig. 9 yes Figure 8 A schematic diagram of the structure at D in FIG.

[0037] Fig.10 is a schematic diagram of the bone cutting path of the present invention;

[0038] Fig.11 is a top view of the angle adjustment mechanism of the present invention;

[0039] Fig.12 yes Fig.11 A plan cross-sectional view of a hollow threaded motor;

[0040] Fig.13 yes Fig.11 A plane cross-sectional view of the angle detection sensor in FIG.

[0041] Fig.14 It is a three-dimensional exploded schematic diagram of the local structure of the angle adjustment mechanism;

[0042] Fig.15 is a planar cross-sectional view of the bone compression mechanism of the present invention;

[0043] Fig.16 It is a schematic diagram of the three-dimensional structure decomposition of the adjustment mechanism in the bone compression mechanism;

[0044] Fig.17 It is a schematic diagram of the local structural features of the rectangular support seat.

[0045] The numbers in the figure are: 1-base; 2-tray; 3-transverse platform; 4-bone pressing mechanism; 5-support plate; 6-tightening mechanism; 7-angle adjustment mechanism; 8-strip avoidance hole; 9-pushing mechanism; 10-baffle; 11-placing area; 12-first slide rail; 13-first rack; 14-first motor; 15-first gear; 16-long axis cylinder; 17-strip plate; 18-anti-slip serration; 19-second slide rail; 20-second motor; 21-second gear; 22-second rack; 23-double-rod cylinder; 24-L shaped base plate; 25-hollow threaded motor; 26-angle detection sensor; 27-rotating motor bracket; 28-connector; 29-long lead screw; 30-headless screw; 31-rectangular support seat; 32-pressing needle; 33-micro motor; 34-threaded rod; 35-threaded column; 36-spring; 37-cylindrical through hole; 38-micro coupling; 39-strip limit groove; 40-slide bar; 41-horizontal support plate; 42-anti-slip pressure block; 43-plug; 44-vertical axis; 45-slide column. DETAILED DESCRIPTION

[0046] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] Reference Figures 1 to 17As shown, a bone cutting device for reducing aggregate waste includes a visual detection camera and a fixed jigsaw, and also includes a base 1, a tray 2 arranged at the top of one end of the base 1, a transverse platform 3 arranged at the top of the other end of the base 1, a bone pressing mechanism 4 arranged above the transverse platform 3, a support plate 5 arranged at the top of the transverse platform 3 for supporting frozen bones, a pressing mechanism 6 arranged at one side of the top of the transverse platform 3 for pressing the frozen bones against the support plate 5, and an angle adjustment mechanism 7 arranged at a side of the top of the transverse platform 3 away from the pressing mechanism 6 for adjusting the horizontal rotation angle of the support plate 5. The transverse platform 3 is provided with a groove for avoiding the jigsaw. The strip avoidance hole 8 is provided, the tightening mechanism 6 and the angle adjustment mechanism 7 are respectively located on both sides of the strip avoidance hole 8, a placement area 11 with anti-slip patterns is provided on the top of one end of the transverse moving platform 3 close to the tray 2, and a pushing mechanism 9 for driving the tray 2 to move above the placement area 11 is provided on the base 1. A baffle 10 which can be translated to one end of the placement area 11 is also provided on the side of the top of the transverse moving platform 3 away from the tray 2, and both the baffle 10 and the placement area 11 are located on the same side of the strip avoidance hole 8, and the visual detection camera is provided above the tray 2 to detect and identify the contour shape of the frozen bones.

[0048] Working principle and effect of the whole device: This bone cutting device focuses on the task of frozen bone cutting. In the initial state, the frozen bone is placed on the tray 2, and then the pushing mechanism 9 on the base 1 is started to accurately move the tray 2 to the top of the placement area 11 at one end of the transverse platform 3. At this time, the visual detection camera located above the tray 2 immediately scans the frozen bone, quickly detects and identifies the contour shape of the frozen bone, and transmits the acquired data to the control system in real time. The control system plans the most suitable cutting path based on the built-in algorithm. The support plate 5 on the transverse platform 3 provides support for the frozen bone, and the pressing mechanism 6 is on standby at any time, ready to press the frozen bone tightly against the support plate 5 to ensure the stability of the frozen bone during cutting. The angle adjustment mechanism 7 can flexibly adjust the horizontal rotation angle of the support plate 5 as needed according to the shape of the frozen bone. When everything is ready, the fixed jigsaw starts to work, and the strip avoidance hole 8 on the transverse platform 3 leaves space for the jigsaw to run, ensuring smooth cutting. Moreover, in the early stage of cutting, the baffle 10 is in a specific position to prevent the cutting from starting from the key position of the frozen bone (such as the vertex of the triangle), thereby ensuring that the largest number of bone strips with sufficient length and excellent appearance can be cut out subsequently.

[0049] Achievement of purpose or effect: Effectively solve the problem of different lengths of bone strips, poor appearance and quality, and large amount of aggregate waste caused by conventional equal-width cutting of frozen bones. Through precise planning of the cutting path and the coordinated operation of various components, the yield of frozen bone cutting is significantly improved, aggregate waste is reduced, and higher economic benefits are brought to production. Fig.10 As shown, the cutting paths in the range E in the figure are all capable of cutting out high-quality bone strips of sufficient length.

[0050] The clamping mechanism 6 includes a horizontal support plate 41 and a plurality of anti-slip pressure blocks 42 distributed on the side of the horizontal support plate 41 facing the support plate 5. The horizontal support plate 41 is located above the placement area 11. The bottom of the transverse movement platform 3 is fixedly provided with a first slide rail 12 for slidingly connecting the outer end of the horizontal support plate 41. The horizontal support plate 41 and the first slide rail 12 are connected in a horizontal "U-shape". The transverse movement platform 3 is located between the horizontal support plate 41 and the first slide rail 12. One side of the first slide rail 12 is also provided with a first rack 13 fixedly connected to the horizontal support plate 41. The bottom of the transverse movement platform 3 is fixedly provided with a first motor 14. The output shaft of the first motor 14 is provided with a first gear 15 meshing with the first rack 13.

[0051] Working principle and effect of tightening mechanism 6:

[0052] Working principle: It consists of a horizontal support plate 41 and a number of anti-skid pressure blocks 42. The outer end of the horizontal support plate 41 and the first slide rail 12 at the bottom of the transverse platform 3 are connected in a "U-shaped" manner. This design ensures that the horizontal support plate 41 can slide horizontally smoothly along the slide rail. When the cutting process requires the frozen bone to be fixed, the first motor 14 receives the control system command, drives the output shaft to rotate, and drives the first gear 15 installed on the shaft to rotate. The first gear 15 is engaged with the first rack 13 fixed on one side of the horizontal support plate 41, prompting the horizontal support plate 41 and the anti-skid pressure blocks 42 thereon to move toward the support plate 5, and finally firmly press the frozen bone. The anti-skid pressure blocks 42 can increase the friction force to prevent the frozen bone from shifting during the cutting process.

[0053] Achieved purpose or effect: Provides reliable lateral fixed support for frozen bone cutting, prevents the frozen bone from shifting due to external factors such as cutting vibration, effectively ensures cutting accuracy, further reduces the probability of cutting errors caused by frozen bone displacement, and reduces aggregate waste.

[0054] A long-axis cylinder 16 is arranged on the horizontal support plate 41 and is vertically oriented toward the strip avoidance hole 8. A strip plate 17 for pressing one end of the small head of the frozen bone is fixedly connected to the output shaft of the long-axis cylinder 16. The end of the strip plate 17 is formed with anti-slip serrations 18.

[0055] Working principle and effect of 16 parts of long-axis cylinder:

[0056] Working principle: After receiving the command from the control system, the long-axis cylinder 16 installed on the horizontal support plate 41 drives the output shaft forward, and the strip plate 17 connected to the front end of the output shaft moves toward the end of the frozen bone head. The end of the strip plate 17 is designed with anti-slip serrations 18. When it contacts the frozen bone head, the serrations tightly bite the frozen bone surface with the special structure, increasing the friction, thereby firmly pressing the end of the frozen bone head.

[0057] Achieve purpose or effect: Taking into full consideration the difficulty in fixing the small head of the frozen bone, the fixing effect of this part is specially strengthened, and cooperates with the tightening mechanism 6 to achieve all-round stability of the frozen bone, ensuring that the frozen bone, especially the small head, remains still during cutting, ensuring the smooth progress of the cutting work, and reducing the output of defective products.

[0058] The base 1 is provided with a second slide rail 19 for connecting the transverse platform 3, and a second motor 20 is fixedly provided on the base 1. A second gear 21 is connected to the output shaft of the second motor 20. A second rack 22 meshing with the second gear 21 is also provided at the bottom of the transverse platform 3, and the length direction of the second rack 22 is consistent with the length direction of the second slide rail 19.

[0059] Working principle and effect of the moving mechanism of the transverse platform 3:

[0060] Working principle: The second slide rail 19 installed on the base 1 provides solid support and precise guidance for the transverse platform 3. When the cutting demand changes and the position of the transverse platform 3 needs to be adjusted, the second motor 20 fixed on the base 1 receives the control system command to start, and the drive output shaft drives the second gear 21 connected thereto to rotate. Since the second gear 21 is tightly meshed with the second rack 22 at the bottom of the transverse platform 3, and the length direction of the second rack 22 is consistent with the second slide rail 19, the transverse platform 3 can move smoothly along the slide rail.

[0061] Purpose or effect achieved: It is convenient to flexibly adjust the position of the transverse moving platform 3 according to different cutting requirements. For example, when cutting different parts of frozen bones or dealing with frozen bones of various shapes, the frozen bones and the jigsaw can reach the best relative position, which broadens the cutting adaptability of the device and improves the cutting efficiency and accuracy.

[0062] A double-rod cylinder 23 is fixedly provided on the top of the transverse platform 3 for driving the baffle 10 to translate. When the baffle 10 is between the support plate 5 and the strip plate 17, one end of the small head of the frozen bone is pressed against the baffle 10 by the anti-slip serrations 18.

[0063] Working principle and effect of baffle 10 moving mechanism:

[0064] Working principle: The double-rod cylinder 23 set on the top of the transverse platform 3 is the power source for the movement of the baffle 10. In the early stage of cutting, when it is necessary to avoid cutting from a specific part of the frozen bone (such as the vertex of the triangle), the baffle 10 is between the backing plate 5 and the strip plate 17. At this time, the double-rod cylinder 23 maintains the stability of the baffle 10, and one end of the small head of the frozen bone is pressed against the baffle 10 to ensure that the starting position of the cutting avoids the key part. When the early cutting is completed and it is necessary to cut the bone strip of sufficient length, the control system sends a command to the double-rod cylinder 23, and the double-rod cylinder 23 drives the baffle 10 to move horizontally and evacuate to make room for subsequent cutting. At the same time, the clamping mechanism 6 completely presses the frozen bone against the backing plate 5, waiting for the jigsaw to cut the bone of sufficient length.

[0065] Achieve purpose or effect: Accurately control the starting position of cutting, effectively prevent accidental cutting of key parts of frozen bones, ensure that the cutting process is strictly carried out according to the preset optimal cutting path, improve the quality of finished bone strips, and reduce short bone strips or waste caused by incorrect cutting paths.

[0066] A translation mechanism for moving the angle adjustment mechanism 7 closer to or away from the frozen bone is provided on the top of the transverse moving platform 3. The angle adjustment mechanism 7 includes an L-shaped base plate, a hollow threaded motor 25 and an angle detection sensor 26. The L-shaped base plate is provided on the translation output end of the translation mechanism. One end of the support plate 5 is axially connected to the outer end of the short side of the L-shaped base plate. The angle detection sensor 26 is provided at the axial connection between the support plate 5 and the L-shaped base plate. The hollow threaded motor 25 is axially connected to the long side of the L-shaped base plate through a rotating motor bracket 27. An articulated seat is provided on the back side of the free end of the support plate 5. A connector 28 is axially connected to the articulated seat. A long screw rod 29 is fixedly connected to the free end of the connector 28. The long screw rod 29 passes through the hollow threaded motor 25 and is threadedly matched with it.

[0067] Working principle and effect of angle adjustment mechanism 7:

[0068] Working principle: First, the translation mechanism drives the L-shaped bottom plate 24 to move closer to or away from the frozen bone under the command of the control system to achieve preliminary rough adjustment. One end of the support plate 5 is connected to the outer end of the short side of the L-shaped bottom plate 24 by a shaft connection to ensure flexible rotation. The hollow threaded motor 25 is fixedly connected to the long side of the L-shaped bottom plate 24 with the help of the rotating motor bracket 27. The connector 28 on the back side of the free end of the support plate 5 is connected to one end of the long lead screw 29. The long lead screw 29 accurately passes through the hollow threaded motor 25 and is threaded with it. When the angle of the support plate 5 needs to be adjusted, the hollow threaded motor 25 is started, and according to the principle of thread transmission, the connector 28 and the support plate 5 are pushed to rotate around the axis. During this process, the angle detection sensor 26 monitors the angle of the shaft connection between the support plate 5 and the L-shaped bottom plate 24 in real time, and feeds back the data to the control system for precise control. It is worth noting that the angle adjustment function of the support plate 5 does not necessarily have to be achieved through automatic control. A traditional hand-adjustable device with a scale can also be used. This is because when cutting the same piece of frozen bone, the angle between every two adjacent cutting paths is certain. The present invention adds an automated adjustment method to save the tedious adjustment process between each bone cutting.

[0069] Purpose or effect: For frozen bones with irregular shapes, especially those with large width differences between the vertex and the opposite side of triangular frozen bones, the angle between the support plate 5 and the cutting route can be accurately adjusted to ensure uniform width of the bone strips during cutting, improve cutting quality, and reduce uneven bone strips or waste caused by improper angles.

[0070] The free end of the connector 28 is formed with a cylindrical socket, one end of the long screw rod 29 is formed with a plug for matching the cylindrical socket, the cylindrical wall of the plug is formed with an inward-recessed top screw groove, the upper and lower ends of the connector 28 are both screwed with headless screws 30 for tightening the top screw groove, the angle detection sensor 26 is fixedly set at the bottom of the L-shaped base plate, the support plate 5 and the L-shaped base plate are hinged by a vertical axis, and the detection axis of the angle detection sensor 26 is upwardly plugged into the bottom of the vertical axis.

[0071] Connector 28 related structure working principle and effect:

[0072] Working principle: The cylindrical socket at the free end of the connector 28 is tightly matched with the plug at one end of the long screw rod 29. The top screw groove set on the cylindrical wall of the plug and the headless screw 30 installed at the upper and lower ends of the connector 28 constitute a stable connection structure. When it is necessary to ensure a reliable connection, tighten the headless screw 30 so that it is tightly pressed into the top screw groove to firmly fix the plug in the socket. The angle detection sensor 26 is fixed to the bottom of the L-shaped bottom plate 24, and its detection axis is precisely plugged into the bottom of the vertical axis, so that the rotation angle of the support plate 5 can be accurately detected. The support plate 5 and the L-shaped bottom plate 24 are hinged through the vertical axis to achieve flexible rotation.

[0073] Achieve purpose or effect: Ensure the stable connection of the angle adjustment mechanism 7 and accurate angle detection, lay a solid foundation for accurate angle adjustment of the support plate 5, thereby ensuring cutting accuracy and reducing cutting deviation and aggregate waste caused by loose connection and inaccurate angle detection.

[0074] A 3D camera for detecting three-dimensional spatial data of the frozen bone surface is also arranged above the placement area 11. The bone pressing mechanism 4 includes a rectangular support seat 31 and a plurality of pressing needles 32 distributed in a rectangular array state in the rectangular support seat 31. The lower ends of the pressing needles 32 extend vertically downward from the bottom of the rectangular support seat 31 and contact the frozen bone. An adjustment mechanism is arranged above each of the pressing needles 32, which can pre-adjust the bottoming and pressing stroke of the pressing needles 32 according to the detection data of the 3D camera.

[0075] Working principle and effect of 3D camera and bone compression mechanism 4:

[0076] Working principle: When the tray 2 drives the frozen bone to move above the placement area 11, the bone pressing mechanism 4 starts to operate, and its rectangular support seat 31 slowly moves downward, and the pressing needles 32 distributed in the internal rectangular array gradually contact the frozen bone. At the same time, the tray 2 is quickly withdrawn, so that the frozen bone remains in the placement area 11, and the pressing needles 32 firmly fix the frozen bone. The 3D camera above the placement area 11 simultaneously scans the surface of the frozen bone, obtains three-dimensional spatial data and transmits it to the control system in real time. The adjustment mechanism is precisely controlled according to the 3D camera data. The micro motor 33 drives the threaded rod 34 to rotate. Since the lower half of the threaded rod 34 is screwed into the inner hole of the threaded column 35, and the threaded column 35 is limited by the strip limiting groove 39 and the slide bar 40 in the cylindrical through hole 37, it can only move up and down. The upper end of the spring 36 is sleeved on the positioning column at the lower end of the threaded column 35, and the lower end is pressed against the slide column 45 at the top of the pressing needle 32. By adjusting the position of the threaded column 35, the pre-compression amount of the spring 36 is changed, thereby accurately controlling the bottoming and pressing stroke of the pressing needle 32 to adapt to the shape of the frozen bone.

[0077] Achieved purpose or effect: The 3D camera provides more accurate frozen bone surface information for cutting planning. The bone pressing mechanism 4 can adaptively adjust the downward pressure of the pressing needle 32 according to the actual shape of the frozen bone to ensure the stability of the frozen bone, avoid damage to the frozen bone caused by excessive pressure, optimize the cutting conditions, and improve the cutting yield rate.

[0078] The adjustment mechanism includes a micro motor 33, a threaded rod 34, a threaded column 35 and a spring 36 arranged in sequence from top to bottom. The rectangular support seat 31 is formed with a plurality of cylindrical through holes 37 for accommodating the movement of the adjustment mechanism. The micro motor 33 is fixedly arranged on the top of the rectangular support seat 31 and its output shaft extends downward into the cylindrical through hole 37 below. The output shaft of the micro motor 33 is fixedly connected to the upper part of the threaded rod 34 through a micro coupling 38. The lower half of the threaded rod 34 is screwed to the threaded column 35. In the inner hole of the threaded column 35, the lower end of the threaded column 35 is formed with a positioning column for the upper end of the spring 36 to be sleeved, the length of the positioning column is greater than the length of the spring 36 when it is extremely compressed, the top of the pressure needle 32 is formed with a sliding column 45 slidably set in the cylindrical through hole 37, the lower end of the spring 36 is tightly pressed against the top of the sliding column 45, and a strip-shaped limiting groove 39 is formed on the inner wall of the upper half of the cylindrical through hole 37, and a sliding bar 40 matching the strip-shaped limiting groove 39 is provided on the outer wall of the threaded column 35.

[0079] Detailed working principle and effect of adjustment mechanism:

[0080] Working principle: The micro motor 33 is fixed on the top of the rectangular support seat 31. After receiving the control system command, the output shaft drives the threaded rod 34 to rotate through the micro coupling 38. Based on the principle of thread matching, the threaded rod 34 and the threaded column 35 realize lifting and lowering movements. The positioning column at the lower end of the threaded column 35 is sleeved with the spring 36. The lower end of the spring 36 acts on the sliding column 45 of the pressure needle 32. The strip limit groove 39 in the upper half of the cylindrical through hole 37 cooperates with the sliding strip 40 on the outer wall of the threaded column 35, strictly constraining the threaded column 35 to move only along the axial direction to ensure the accuracy of adjustment.

[0081] Purpose or effect achieved: To achieve precise control of the downward pressing stroke of the pressing needle 32, perfectly adapt to the surface fluctuations of frozen bones of different shapes, while stably fixing the frozen bones, minimizing damage to the frozen bones, ensuring smooth cutting, and reducing cutting problems caused by improper fixation.

[0082] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A bone cutting device for reducing aggregate waste, comprising a visual inspection camera and a fixed jigsaw, characterized in that: The invention also comprises a base (1), a tray (2) arranged at the top of one end of the base (1), a transverse platform (3) arranged at the top of the other end of the base (1), a bone pressing mechanism (4) arranged above the transverse platform (3), a support plate (5) arranged at the top of the transverse platform (3) for supporting frozen bones, a pressing mechanism (6) arranged at one side of the top of the transverse platform (3) for pressing the frozen bones against the support plate (5), and an angle adjustment mechanism (7) arranged at a side of the top of the transverse platform (3) away from the pressing mechanism (6) for adjusting the horizontal rotation angle of the support plate (5), wherein the transverse platform (3) is provided with a strip-shaped avoidance hole (8) for avoiding a jigsaw, and the pressing mechanism (6) and an angle adjustment mechanism (7) are respectively located on both sides of the strip-shaped avoidance hole (8); a placement area (11) having anti-slip patterns is provided on the top of one end of the transverse moving platform (3) close to the tray (2); a pushing mechanism (9) is provided on the base (1) for driving the tray (2) to move to the top of the placement area (11); a baffle (10) capable of translating to one end of the placement area (11) is also provided on the top of the transverse moving platform (3) away from the tray (2); the baffle (10) and the placement area (11) are both located on the same side of the strip-shaped avoidance hole (8); and the visual detection camera is provided above the tray (2) for detecting and identifying the contour shape of the frozen bone; The tightening mechanism (6) comprises a horizontal support plate (41); The horizontal support plate (41) is provided with a long-axis cylinder (16) which is perpendicular to the strip-shaped avoidance hole (8), and the output shaft of the long-axis cylinder (16) is fixedly connected with a strip-shaped plate (17) for pressing one end of the small head of the frozen bone, and the end of the strip-shaped plate (17) is formed with anti-slip serrations (18); A double-rod cylinder (23) is fixedly provided on the top of the transverse platform (3) for driving the baffle plate (10) to translate. When the baffle plate (10) is between the support plate (5) and the strip plate (17), one end of the small head of the frozen bone is pressed against the baffle plate (10) by the anti-slip serrations (18).

2. A bone cutting device for reducing aggregate waste according to claim 1, characterized in that: The clamping mechanism (6) further comprises a plurality of anti-slip pressure blocks (42) distributed on the side of the horizontal support plate (41) facing the support plate (5); the horizontal support plate (41) is located above the placement area (11); a first slide rail (12) for slidingly connecting the outer end of the horizontal support plate (41) is fixedly arranged at the bottom of the transverse platform (3); the horizontal support plate (41) and the first slide rail (12) are connected in a horizontal "U-shape"; the transverse platform (3) is located between the horizontal support plate (41) and the first slide rail (12); a first rack (13) fixedly connected to the horizontal support plate (41) is further arranged on one side of the first slide rail (12); a first motor (14) is fixedly arranged at the bottom of the transverse platform (3); a first gear (15) meshing with the first rack (13) is arranged on the output shaft of the first motor (14).

3. A bone cutting device for reducing aggregate waste according to claim 1, characterized in that: The base (1) is provided with a second slide rail (19) for connecting the transverse platform (3), a second motor (20) is fixedly provided on the base (1), a second gear (21) is connected to the output shaft of the second motor (20), and a second rack (22) meshing with the second gear (21) is also provided at the bottom of the transverse platform (3), and the length direction of the second rack (22) is consistent with the length direction of the second slide rail (19).

4. A bone cutting device for reducing aggregate waste according to claim 1, characterized in that: A translation mechanism for moving the angle adjustment mechanism (7) closer to or farther from the frozen bone is arranged on the top of the transverse platform (3). The angle adjustment mechanism (7) comprises an L-shaped bottom plate, a hollow threaded motor (25) and an angle detection sensor (26). The L-shaped bottom plate is arranged on the translation output end of the translation mechanism. One end of the support plate (5) is axially connected to the outer end of the short side of the L-shaped bottom plate. The angle detection sensor (26) is arranged at the axial connection between the support plate (5) and the L-shaped bottom plate. The hollow threaded motor (25) is axially connected to the long side of the L-shaped bottom plate at a fixed point through a rotating motor bracket (27). A hinge seat is arranged on the back side of the free end of the support plate (5). A connector (28) is axially connected to the hinge seat. A long screw rod (29) is fixedly connected to the free end of the connector (28). The long screw rod (29) passes through the hollow threaded motor (25) and is threadedly engaged with the hollow threaded motor (25).

5. A bone cutting device for reducing aggregate waste according to claim 4, characterized in that: The free end of the connector (28) is formed with a cylindrical socket, one end of the long screw rod (29) is formed with a plug (43) for matching the cylindrical socket, the cylindrical wall of the plug (43) is formed with a recessed top screw groove, the upper and lower ends of the connector (28) are both screwed with headless screws (30) for tightening the top screw groove, the angle detection sensor (26) is fixedly arranged at the bottom of the L-shaped bottom plate, the support plate (5) and the L-shaped bottom plate are hinged via a vertical axis (44), and the detection axis of the angle detection sensor (26) is plugged into the bottom of the vertical axis (44).

6. A bone cutting device for reducing aggregate waste according to claim 1, characterized in that: A 3D camera for detecting three-dimensional spatial data of the frozen bone surface is also arranged above the placement area (11). The bone pressing mechanism (4) comprises a rectangular support seat (31) and a plurality of pressing needles (32) arranged in a rectangular array state in the rectangular support seat (31). The lower ends of the pressing needles (32) extend vertically downward from the bottom of the rectangular support seat (31) and contact the frozen bone. An adjustment mechanism capable of pre-adjusting the bottoming pressing stroke of the pressing needle (32) according to the detection data of the 3D camera is arranged above each of the pressing needles (32).

7. A bone cutting device for reducing aggregate waste according to claim 6, characterized in that: The regulating mechanism comprises a micro motor (33), a threaded rod (34), a threaded column (35) and a spring (36) arranged in sequence from top to bottom. A plurality of cylindrical through holes (37) for accommodating the movement of the regulating mechanism are formed in the rectangular support seat (31). The micro motor (33) is fixedly arranged on the top of the rectangular support seat (31) and its output shaft extends downward into the cylindrical through hole (37) below. The output shaft of the micro motor (33) is fixedly connected to the upper part of the threaded rod (34) through a micro coupling (38). The lower half of the threaded rod (34) is screwed to the threaded column (35). ), the lower end of the threaded column (35) is formed with a positioning column for the upper end of the spring (36) to be sleeved, the length of the positioning column is greater than the length of the spring (36) when it is extremely compressed, the top of the pressure needle (32) is formed with a sliding column (45) slidably arranged in the cylindrical through hole (37), the lower end of the spring (36) is tightly pressed against the top of the sliding column (45), a strip-shaped limiting groove (39) is formed on the inner wall of the upper half of the cylindrical through hole (37), and a sliding bar (40) matching the strip-shaped limiting groove (39) is provided on the outer wall of the threaded column (35).

8. A method for bone cutting using the device according to any one of claims 1 to 7, characterized in that The method comprises the following steps: S1, preparation stage: the frozen bones to be cut are placed stably on the tray (2), ensuring that the placement of the frozen bones does not affect subsequent operations. At this time, all components are in an initial state, such as the transverse platform (3) is in an initial position, and the tightening mechanism (6) and the baffle (10) are not started; S2, loading and fixing: the pushing mechanism (9) on the base (1) is started, and the tray (2) carrying the frozen bones is accurately moved to the top of the placement area (11) of the transverse platform (3). At the same time, the bone pressing mechanism (4) slowly moves downward to contact the frozen bones, and then the tray (2) is quickly withdrawn, and the frozen bones are firmly fixed in the placement area (11); S3, planning a cutting path: the control system uses an algorithm to plan an optimal cutting path for the current frozen bone shape based on the data transmitted by the visual detection camera, and at the same time determines whether the angle of the support plate (5) needs to be adjusted based on the frozen bone shape. If necessary, the angle adjustment mechanism (7) adjusts the support plate (5) to a suitable angle; S4, preliminary cutting preparation: according to the cutting path, if the frozen bone has a special shape, the baffle plate (10) is translated between the support plate (5) and the strip plate (17), and the tightening mechanism (6) is actuated to fix the frozen bone to prevent cutting from starting from a critical part; S5, preliminary cutting: the fixed jigsaw is started, and preliminary cutting is performed according to the planned path. During the cutting process, the fixed components ensure that the frozen bones are stable. At this time, the strip-shaped avoidance hole (8) provides space for the operation of the jigsaw. The cut bones will fall from the strip-shaped avoidance hole (8), and an inclined bucket is provided below to receive the materials. The waste generated by the cutting is collected by a special collection device; S6, preparation for full-length cutting: after the preliminary cutting is completed, the control system controls the baffle plate (10) to move horizontally away, and the pressing mechanism (6) further presses the frozen bone completely against the supporting plate (5) to ensure that the frozen bone will not shift during full-length cutting; S7, full-length cutting: the jigsaw continues to work, cutting full-length bone strips according to the planned path, and the cut bones fall from the strip-shaped avoidance holes (8) and are collected by the inclined bucket; S8, cutting completed: when all planned cutting tasks are completed, the jigsaw stops working and all components are reset, such as the transverse platform (3) returns to the initial position and the bone pressing mechanism (4) is lifted to complete a complete frozen bone cutting process.

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