Die machining fixing device and fixing method

Abstract

The invention discloses a mold machining fixing device and method, and belongs to the technical field of mold plate machining positioning. The mold machining fixing device comprises a machining table, a rotating piece is arranged at the top of the machining table and is of an annular structure, and two sets of pressing rods are arranged at the rotating piece; a connecting line of the two groups of pressing rods passes through the diameter of the rotating part; when the pressing rod rotates to the posture perpendicular to the side wall of the formwork, the end of the pressing rod is comprehensively attached to the outer wall of the formwork; in the state, when the rotating piece continues to rotate, the pressing rod cannot be further close due to the limiting effect of the template, and torque is transmitted through the binding face to drive the template to synchronously rotate along with the rotating piece. By means of the design, posture calibration of the template can be accurately completed, the side edge of the template and the side edge of the machining table are perpendicular or parallel, and a stable and reliable positioning foundation is provided for follow-up high-precision machining operation of a machining assembly.

Description

Technical Field

[0001] This invention relates to the field of template processing and positioning technology, and in particular to a mold processing fixing device and fixing method. Background Technology

[0002] A mold is a metal structure formed by cutting, grinding, drilling and other processes from a template. It is commonly used in the molding and production of products and has a wide range of applications in existing processing and production. Therefore, the technical means of making molds from templates is quite important in the existing technology.

[0003] Chinese invention patent CN118493025B discloses a positioning and centering machine for mold processing. By symmetrically threading a first slider to both ends of a first double-ended screw, two first clamping plates can move synchronously relative to each other. Similarly, by symmetrically threading a second slider to both ends of a second double-ended screw, two second clamping plates can move synchronously relative to each other. This clamps the template in four directions: front, back, left, and right. Furthermore, a first inner sliding sleeve is slidably installed inside a first outer sliding sleeve, and a second inner sliding sleeve is slidably installed inside a second outer sliding sleeve. This allows the device to adaptively position and clamp the template. During clamping and positioning, there is no need to specifically adjust the template to the center of the platform or push the template to move, effectively improving the convenience of template positioning and clamping.

[0004] The aforementioned device employs a structure in which first and second clamping plates are respectively arranged on the four sides of the template to achieve the functions of positioning and fixing the template. However, in practical applications, since both the first and second clamping plates are long strip-shaped plate structures, their structural rigidity is difficult to fully adapt to the continuous extrusion force requirements during long-term clamping. Under repeated contact and extrusion with the template, the clamping plates are prone to irreversible plastic deformation, specifically manifested as bending, warping, and other morphological changes. This leads to gaps or uneven contact force on the mating surfaces of the clamping plates and the template, ultimately affecting the accuracy and stability of subsequent template positioning and failing to guarantee the consistency and reliability of mold processing.

[0005] Therefore, it is necessary to provide a mold processing fixing device and fixing method to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a mold processing fixing device and fixing method to solve the technical problems mentioned in the background art.

[0007] Based on the above ideas, the present invention provides the following technical solution: a mold processing fixing device, including a processing table, a rotating component is provided on the top of the processing table, the rotating component is configured as a ring structure, and two sets of pressure rods are provided at the rotating component, the line connecting the two sets of pressure rods passes through the diameter of the rotating component; The rotating component is provided with a driving assembly for driving the pressure rod to move along the diameter direction of the rotating component. When the rotating component rotates around its own axis, the pressure rod can move unidirectionally under the force of the driving assembly, so that one end of the pressure rod is always in contact with the outer wall of the template, so that when the pressure rod is perpendicular to the template, the end of the pressure rod can be completely in contact with the outer wall of the template.

[0008] As a further aspect of the present invention: the driving assembly includes a screw connected to the pressure rod, the rotating member has a sliding groove, and the rotation of the pressure rod is restricted by the linear sliding engagement between the pressure rod and the sliding groove, the screw is arranged along the diameter direction of the rotating member and threadedly connected to the pressure rod.

[0009] As a further embodiment of the present invention: a worm gear is fixedly installed at the end of the screw away from the pressure rod, a worm is meshed on the outside of the worm gear, and plate-shaped support members are provided at both ends of the worm. The support members are fixedly connected to the rotating member, and a connecting shaft fixed to the end of the worm passes through the support member and is elastically fitted with the support member along its own circumferential direction.

[0010] As a further embodiment of the present invention: a brakeless motor is fixedly installed on the support member, and the connecting shaft at the end of the worm gear is connected to the output end of the brakeless motor.

[0011] As a further aspect of the present invention: two sets of plate-shaped fixing members are arranged on the outer side of the rotating member, and the line connecting the two sets of fixing members is perpendicular to the line connecting the two sets of pressure rods.

[0012] As a further aspect of the present invention: a gear ring is fixedly sleeved on the outer side of the rotating component, and a drive gear meshes on the outer side of the gear ring.

[0013] As a further aspect of the present invention: a drive motor is installed at the processing table, the output end of the drive motor is connected to a drive shaft, and the drive gear is fixedly sleeved on the outside of the drive shaft.

[0014] As a further embodiment of the present invention: a bushing is coaxially provided on the outside of the connecting shaft, the bushing is fixed to the support member, and an elastic member is sleeved on the connecting shaft to make the worm gear elastically connected to the bushing along its own circumferential direction.

[0015] As a further aspect of the present invention: the elastic element is a coil spring, and both ends of the coil spring are respectively connected to the connecting shaft and the bushing.

[0016] A fixing method using the above-mentioned mold processing fixing device includes the following steps: placing the template to be processed inside the rotating part and driving the rotating part to rotate; the driving component can drive the pressure rod to move along the diameter direction of the rotating part, and the end of the pressure rod is always in contact with the side wall of the template; when the pressure rod is perpendicular to the side wall of the template, the pressure rod can synchronously drive the template to deflect during the rotation of the rotating part to position the template.

[0017] Compared with the prior art, the beneficial effects of the present invention are: when the rotating component rotates around its own axis, it can provide a directional driving force to the pressure rod, causing the pressure rod to move unidirectionally along the diameter direction of the rotating component and continuously approach the template, thereby ensuring that one end of the pressure rod is always in contact with the outer wall of the template. Combined with Figures 5-6 As shown, when the pressure bar rotates to a position perpendicular to the side wall of the template, the end of the pressure bar will fully fit against the outer wall of the template; in this state, the rotating part continues to move along... Figure 5 When the center rotates in the X direction, the pressure rod cannot approach further due to the limiting effect of the template. Instead, it transmits torque through the contact surface, causing the template to rotate synchronously with the rotating component. This design can accurately complete the attitude calibration of the template, making the side of the template perpendicular or parallel to the side of the processing table, providing a stable and reliable positioning basis for subsequent high-precision machining operations of the processing components. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the positions of the fixing member and the pressure rod of the present invention; Figure 3 This is a schematic diagram of the drive component structure of the present invention; Figure 4 This is a schematic diagram of the connection structure between the worm gear and the support member of the present invention; Figure 5 This is a schematic diagram showing the contact between the pressure bar and the side of the template in this invention; Figure 6 This is a schematic diagram of the pressure bar of the present invention contacting the side of the template and ultimately perpendicular to the side of the template; Figure 7 This is a schematic diagram showing the contact between the pressure bar and the right-angled edge of the template in this invention; Figure 8 This is a schematic diagram of the pressure bar of the present invention contacting the right-angled edge of the template and ultimately perpendicular to the side of the template.

[0019] In the diagram: 1. Machining table; 2. Machining component; 3. Rotating component; 301. Gear ring; 4. Drive gear; 5. Brake-free motor; 6. Worm gear; 601. Connecting shaft; 7. Pressure rod; 8. Fixing component; 9. Adjusting bolt; 10. Bracket; 11. Worm wheel; 12. Screw; 13. Template; 14. Bushing; 15. Elastic component; 16. Support component; 17. Drive shaft; 18. Slide groove; 19. Guide rod. Detailed Implementation

[0020] like Figures 1-8 As shown, this invention discloses a mold processing and fixing device, mainly applicable to milling, drilling, and other processing steps of the template 13 during mold making. Its core function is to achieve precise positioning and stable fixing of the template 13, providing a reliable guarantee for subsequent processing. The overall structure of the device includes two main parts: one is the basic support and processing unit, specifically the processing table 1, and the processing component 2 mounted on the top of the processing table 1 for performing the processing operation of the template 13; the other is the positioning and clamping unit, which is a clamping component specifically used for positioning and fixing the template 13 to be processed.

[0021] The difference from existing technologies lies in the key structural design of the clamping assembly in this solution: a ring-shaped rotating component 3, and two sets of pressure rods 7 symmetrically arranged along the diameter of the rotating component 3. The line connecting the two sets of pressure rods 7 coincides with one diameter of the rotating component 3, ensuring balanced force and positioning accuracy. The cross-sectional shape of the pressure rods 7 can be flexibly set according to actual needs, such as polygons or circles, to adapt to the fitting and clamping requirements under different working conditions. Figure 5 As shown, in practical applications, the template 13 to be processed is placed in the inner ring area of ​​the rotating component 3. When the rotating component 3 rotates around its own axis along... Figure 5 When the center rotates clockwise in the X direction, one end of the pressure rod 7 can always be in contact with the outer wall of the template 13, laying the foundation for subsequent adaptive positioning.

[0022] The rotating component 3 is equipped with a drive assembly adapted to the pressure rod 7. The core function of this drive assembly is to provide a directional driving force to the pressure rod 7 when the rotating component 3 rotates around its own axis, causing the pressure rod 7 to move unidirectionally along the diameter direction of the rotating component 3 and continuously approach the template 13, thereby ensuring that one end of the pressure rod 7 always fits against the outer wall of the template 13. Figures 5-6 As shown, when the pressure rod 7 rotates to a position perpendicular to the side wall of the template 13, the end of the pressure rod 7 will fully fit against the outer wall of the template 13; in this state, the rotating part 3 continues to move along... Figure 5When the center rotates in the X direction, the pressure rod 7 cannot move closer due to the limiting effect of the template 13. Instead, it transmits torque through the contact surface, causing the template 13 to rotate synchronously with the rotating component 3. This design can accurately complete the attitude calibration of the template 13, so that the side of the template 13 is perpendicular or parallel to the side of the processing table 1, providing a stable and reliable positioning basis for the subsequent high-precision processing operation of the processing component 2.

[0023] In one specific embodiment, the core structure of the drive assembly includes a screw 12 adapted to and connected to the pressure rod 7. Specifically, the rotating member 3 has a sliding groove 18 that matches the pressure rod 7. Through the linear sliding engagement between the pressure rod 7 and the sliding groove 18, the rotational freedom of the pressure rod 7 can be precisely restricted, ensuring that it can only move along the diameter direction of the rotating member 3. The screw 12 is arranged along the diameter direction of the rotating member 3 and forms a threaded connection with the pressure rod 7. This structural design allows the screw 12 to rotate, which can be converted into a linear driving force for the pressure rod 7 along the diameter direction of the rotating member 3 through threaded transmission, thereby realizing the directional movement of the pressure rod 7.

[0024] Meanwhile, thanks to the threaded engagement between the screw 12 and the pressure rod 7, when the pressure rod 7 rotates to a state perpendicular to the side wall of the template 13 and its end is fully in contact with the side wall of the template 13, the threaded structure can form a reliable self-locking effect. This self-locking mechanism can effectively prevent the pressure rod 7 from retracting due to the reverse extrusion force of the template 13 during the rotation of the rotating part 3, thereby ensuring that the pressure rod 7 can stably transmit torque and drive the template 13 to rotate synchronously, ensuring the stability and accuracy of the positioning process.

[0025] In existing technologies, the template 13 is typically initially positioned by workers and then clamped by a pressure plate. This process may require multiple adjustments to the position of the template 13, which is inconvenient, especially when the template 13 is heavy. If the pressure plate is directly driven close to the template 13 and forced to deflect to a horizontal or vertical position, the following problems arise: Firstly, the pressure plate is prone to uneven force distribution, and long-term exposure to non-uniform loads can lead to permanent deformation, affecting the accuracy and stability of the subsequent positioning and fixing of the template 13. Secondly, the posture of the template 13 needs to be manually adjusted beforehand to avoid direct contact between the corners of the template 13 and the pressure plate (similar to...). Figure 7 (For the case where the intermediate pressure rod 7 contacts the corner of the template 13), an additional operating procedure has been added.

[0026] This solution eliminates the need for any pre-adjustment of the template 13. After the template 13 is placed inside the rotating component 3, the pressure rod 7 rotates synchronously with the rotating component 3, automatically conforming to and maintaining contact with the outer wall of the template 13 under the action of the drive component. Only when the pressure rod 7 rotates to a state perpendicular to the side wall of the template 13 will the pressure rod 7 drive the template 13 to deflect synchronously, ultimately causing the template 13 to automatically calibrate to a horizontal or vertical state. This simplifies the operation process and ensures positioning accuracy.

[0027] To drive the screw 12 to rotate, this design has a worm gear 11 fixedly installed at the end of the screw 12 away from the pressure rod 7, and a worm 6 meshes with the outer side of the worm gear 11. Figures 3-4 As shown, both ends of the worm gear 6 are provided with plate-shaped support members 16. The support members 16 are fixedly connected to the rotating member 3, and the connecting shaft 601, fixed at the center of the end of the worm gear 6, passes through the support members 16 and rotatably engages with them. Further, a bushing 14 is coaxially provided on the outer side of the connecting shaft 601. The bushing 14 is fixed to the support member 16, and an elastic member 15 is sleeved on the connecting shaft 601 to allow the worm gear 6 to elastically connect with the bushing 14 along its circumference. Specifically, the elastic member 15 is a coil spring, with both ends connected to the connecting shaft 601 and the bushing 14, respectively. With the above structural design, in the initial state of the device, the elastic element 15 can be made to store energy by driving the worm 6 to rotate. When the rotating element 3 drives the pressure rod 7 to start rotating, the worm 6 is unlocked and released. Under the action of the elastic restoring force released by the elastic element 15, the worm 6 rotates around its own axis. Then, through its meshing transmission relationship with the worm wheel 11, it accurately drives the screw 12 to rotate synchronously, providing stable power for the directional movement of the pressure rod 7.

[0028] To achieve convenient and precise control of the worm gear 6, this design includes a motor fixedly mounted on the support member 16 on the side away from the bushing 14. The connecting shaft 601 at the end of the worm gear 6 is coaxially connected to the output end of the motor. The motor can directly drive the worm gear 6 to rotate, significantly improving operational convenience and control accuracy. It should be noted that the motor selected in this design is a brakeless motor 5, whose characteristics meet the functional requirement that the worm gear 6 can rotate freely after power failure, ensuring the release of the stored force in the elastic element 15 and the smooth operation of the transmission mechanism.

[0029] In summary, initially, the brakeless motor 5 drives the worm gear 6 to rotate, causing the coil spring to store force, while the pressure rod 7 moves outward along the diameter of the rotating component 3. The template 13 to be processed is placed inside the rotating component 3, and then... Figures 5-8As shown, the brakeless motor 5 is de-energized, allowing the worm gear 6 to rotate around its own axis under the force of the coil spring. This, in turn, drives the screw 12 to rotate through the cooperation of the worm wheel 11. During the rotation of the screw 12, the pressure rod 7 can be brought closer to the template 13, causing one end of the pressure rod 7 to fit against the outer wall of the template 13. Figure 5 In the middle, one end of the pressure rod 7 is in contact with the outer wall of the template 13, while Figure 7 In the process, one end of the pressure rod 7 is in contact with the corner of the template 13 (i.e., the right-angle side of the template 13). Regardless of the posture of the template 13, during the synchronous rotation of the pressure rod 7 driven by the rotating component 3, the pressure rod 7 will eventually come into complete contact with the side wall of the template 13. Specifically, the direction of rotation of the rotating component 3 can be determined according to the contact state between the pressure rod 7 and the template 13, so that during the rotation of the rotating component 3, the pressure rod 7 tends to move away from the template 13. Here, rotating part 3 is used as an example. Figure 5 Taking rotation in the X direction as an example, during the rotation of the rotating component 3, the pressure rod 7 tends to gradually move away from the template 13. However, under the elastic force of the coil spring, through the cooperation of the worm gear 11 and the worm 6, the end of the pressure rod 7 near the template 13 can always be in contact with the template 13. When the pressure rod 7 rotates to a state perpendicular to the side wall of the template 13, its end is fully in contact with the side wall of the template 13. Utilizing the threaded engagement characteristics of the pressure rod 7 and the screw 12, this structure can form a reliable self-locking effect, effectively limiting the reverse movement of the pressure rod 7. Therefore, when the rotating component 3 continues along... Figure 5 When the center rotates in the X direction, the pressure rod 7 can stably transmit torque through the contact surface, causing the template 13 to deflect synchronously. Since the pressure rod 7 always remains perpendicular to the side wall of the template 13, when the pressure rod 7 rotates with the rotating component 3 to a position perpendicular or parallel to the side wall of the processing table 1, the side of the template 13 will be synchronously calibrated to a posture perpendicular or parallel to the side wall of the processing table 1, thereby accurately completing the positioning operation of the template 13 and providing accurate reference for subsequent processing steps.

[0030] Combination Figures 1-2 As shown, if it is necessary to position the template 13 at the center of the processing table 1, two sets of plate-shaped fixing parts 8 can be arranged on the outside of the rotating part 3, and the line connecting the two sets of fixing parts 8 is perpendicular to the line connecting the two sets of pressure rods 7.

[0031] Furthermore, a vertical plate is fixedly installed on the processing table 1. An adjusting bolt 9, which rotatably engages with the fixing member 8, passes through the vertical plate and is threadedly connected to it. A guide rod 19, connected to the fixing member 8, passes through the vertical plate and slides with it to restrict the rotation of the fixing member 8. With this structural design, when the template 13 needs to be precisely positioned at the center of the processing table 1, two sets of brakeless motors 5 can be controlled to operate synchronously, thereby driving two sets of pressure rods 7 to move in the same direction, thus adjusting the position of the template 13 parallel to the fixing member 8. Simultaneously, by driving the fixing member 8 to move, the position calibration of the template 13 perpendicular to the fixing member 8 can be completed. In summary, the fixing member 8 and the pressure rods 7 form an orthogonal adjustment mechanism. Their coordinated operation enables full-dimensional position adjustment of the template 13 in the X and Y directions within the horizontal plane, ensuring that the template 13 is precisely aligned to the center of the processing table 1, providing a reliable reference positioning for subsequent high-precision processing.

[0032] Combination Figure 1 As shown, in order to drive the rotating part 3 to rotate, a gear ring 301 can be fixedly sleeved on the outside of the rotating part 3, and a drive gear 4 meshes on the outside of the gear ring 301. In actual use, a drive motor is installed at the processing table 1, and the output end of the drive motor is connected to the drive shaft 17. The drive gear 4 is fixedly sleeved on the outside of the drive shaft 17. This structure is conducive to driving the rotating part 3 to rotate so that the pressure rod 7 can cooperate with the template 13.

[0033] In actual use, an annular groove can be opened on the top of the processing table 1 so that the rotating part 3 can rotate and engage with the processing table 1 through the annular groove.

[0034] Combination Figure 3 As shown, a bracket 10 is fixedly installed on the outer circumferential surface of the rotating component 3, and the outer circumferential surface of the screw 12 has a smooth rod portion that cooperates with the bracket 10, so that the screw 12 passes through the bracket 10 and rotates with the bracket 10 through a tapered roller bearing.

[0035] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. A mold processing fixing device, comprising a processing table (1), wherein a rotating component (3) is provided on the top of the processing table (1), characterized in that: The rotating component (3) is configured as a ring structure, and two sets of pressure rods (7) are provided at the rotating component (3), and the line connecting the two sets of pressure rods (7) passes through the diameter of the rotating component (3); The rotating part (3) is provided with a driving component for driving the pressure rod (7) to move along the diameter direction of the rotating part (3). When the rotating part (3) rotates around its own axis, the pressure rod (7) can move in one direction under the force of the driving component and make one end of the pressure rod (7) always fit against the outer wall of the template (13) so that when the pressure rod (7) is perpendicular to the template (13), the end of the pressure rod (7) can be completely fitted against the outer wall of the template (13).

2. The mold processing fixing device according to claim 1, characterized in that: The drive assembly includes a screw (12) connected to the pressure rod (7). The rotating part (3) has a sliding groove (18). The pressure rod (7) is restricted from rotating by linear sliding cooperation with the sliding groove (18). The screw (12) is arranged along the diameter direction of the rotating part (3) and threadedly connected to the pressure rod (7).

3. The mold processing fixing device according to claim 2, characterized in that: A worm gear (11) is fixedly installed at the end of the screw (12) away from the pressure rod (7). A worm (6) is meshed on the outside of the worm gear (11). Both ends of the worm (6) are provided with plate-shaped support members (16). The support members (16) are fixedly connected to the rotating member (3). The connecting shaft (601) fixed at the end of the worm (6) passes through the support member (16) and the connecting shaft (601) is elastically engaged with the support member (16) along its own circumferential direction.

4. The mold processing fixing device according to claim 3, characterized in that: A brakeless motor (5) is fixedly installed on the support (16), and the connecting shaft (601) at the end of the worm (6) is connected to the output end of the brakeless motor (5).

5. The mold processing fixing device according to claim 1, characterized in that: Two sets of plate-shaped fixing members (8) are arranged on the outside of the rotating member (3), and the line connecting the two sets of fixing members (8) is perpendicular to the line connecting the two sets of pressure rods (7).

6. The mold processing fixing device according to claim 1, characterized in that: A gear ring (301) is fixedly sleeved on the outer side of the rotating part (3), and a drive gear (4) meshes on the outer side of the gear ring (301).

7. The mold processing fixing device according to claim 6, characterized in that: A drive motor is installed at the processing table (1), and the output end of the drive motor is connected to a drive shaft (17). The drive gear (4) is fixedly sleeved on the outside of the drive shaft (17).

8. The mold processing fixing device according to claim 3, characterized in that: A bushing (14) is coaxially provided on the outside of the connecting shaft (601). The bushing (14) is fixed to the support member (16), and an elastic member (15) is sleeved on the connecting shaft (601) so that the worm (6) is elastically connected to the bushing (14) along its own circumferential direction.

9. A mold processing fixing device according to claim 8, characterized in that: The elastic element (15) is a coil spring, and the two ends of the coil spring are connected to the connecting shaft (601) and the bushing (14) respectively.

10. A fixing method using a mold processing fixing device as described in any one of claims 1-9, characterized in that, The process includes the following steps: placing the template (13) to be processed inside the rotating part (3) and driving the rotating part (3) to rotate; the driving component can drive the pressure rod (7) to move along the diameter direction of the rotating part (3), and the end of the pressure rod (7) is always in contact with the side wall of the template (13); when the pressure rod (7) is perpendicular to the side wall of the template (13), the pressure rod (7) can synchronously drive the template (13) to deflect during the rotation of the rotating part (3) to position the template (13).

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