Blow mold drilling processing positioning tool
Patent Information
- Application Number
- CN202522054566.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-09-24
AI Technical Summary
1.通过定位槽与芯模弧形面贴合、限位块与芯模凹槽适配，从水平位移和周向转动维度初步约束芯模，平衡压块结合导向柱下滑接触芯模，配合水平仪实时检测与微调，主动消除芯模倾斜偏差，保障水平精度，拧紧锁紧螺栓后，平衡压块施加垂直压力，与定位槽、限位块、推动条共同构建刚性约束体系，使芯模与工装形成稳定整体，钻孔时可有效抵御切削力，避免位移、振动，提升钻孔质量与模具一致性。
Smart Images
Figure CN224779942U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a positioning fixture for drilling holes in blow molding molds. Background Technology
[0002] Positioning fixtures are auxiliary devices used to fix the position of workpieces and ensure machining or assembly accuracy, ensuring that the workpiece is always in an accurate position during machining or assembly. In blow molding die drilling, the structure of blow molding dies typically includes complex cavities, core-pulling components, etc. The drilling position directly affects the mold's closing accuracy and performance after assembly. Positioning fixtures firmly fix the mold on the drilling machine's worktable, ensuring that the feed direction and hole coordinates during drilling are consistent with the design drawings. This avoids problems such as hole position deviations and out-of-tolerance hole diameters caused by mold shaking or displacement, thereby ensuring the accuracy and consistency of blow molding die drilling and laying the foundation for subsequent mold assembly and product molding quality.
[0003] A search revealed Chinese patent publication number CN221819455U, which discloses a mold positioning device for a blow molding machine used in plastic bottle processing. The device includes a mounting frame with a placement platform on top, and a positioning component on top of the placement platform. This mold positioning device for a blow molding machine for plastic bottle processing utilizes a drive component. A dual-axis servo motor rotates a drive screw, which in turn drives two threaded drive blocks to move simultaneously in the same direction. The drive blocks move a drive plate, which in turn moves a push shaft downwards through a slotted hole. The push shaft, through a lifting rod, moves a push rod downwards, which in turn moves a wedge block downwards. This causes the wedge block to push a pulley towards the placement platform. The pulley, through a fixed seat, moves a positioning rod, compressing a positioning spring. The positioning rod then moves a positioning plate, thereby adjusting the distance between the two adjusting plates to achieve the positioning of molds of different sizes.
[0004] The aforementioned patent specification mentions that "by setting up a drive assembly, a dual-axis servo motor is started to drive the drive screw to rotate. The drive screw drives two drive blocks connected to it by threads to move simultaneously in the same direction. The drive blocks drive the drive plate to move. The drive plate drives the push shaft to move down through the strip hole. The push shaft drives the push rod to move down through the lifting rod. The push rod drives the wedge block to move down, so that the wedge block pushes the pulley to move closer to the placement table. The pulley drives the positioning rod to move through the fixed seat. The positioning spring is compressed. The positioning rod drives the positioning plate to move. Thus, by adjusting the distance between the two adjustment plates, the purpose of positioning molds of different sizes can be achieved." The above content can achieve the purpose of positioning molds of different sizes by adjusting the distance between the two adjustment plates. During the drilling process of blow molding core molds, the cutting force of the drill bit can easily cause the core mold to wobble or shift slightly. However, some tooling uses a single slot fixing method, which is difficult to effectively constrain the horizontal displacement and circumferential rotation of the core mold during the processing, resulting in insufficient system stability, causing drilling position deviation and decreased hole accuracy, and also leading to defects in the molding quality of plastic bottles. Therefore, a positioning tooling for drilling processing of blow molding molds is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this application is to provide a positioning fixture for drilling holes in blow molding molds, which aims to improve the problem of insufficient positioning stability in the drilling process of blow molding mold core molds.
[0006] The technical solution for a blow molding die drilling and positioning fixture provided in this application is as follows: A positioning fixture for drilling and machining blow molding molds includes a positioning platform with a positioning groove inside. A fixing mechanism is provided on the top of the positioning platform. A core mold is slidably connected to the outside of the positioning groove. Two positioning holes are provided inside the core mold. A pushing mechanism is provided outside the positioning platform. The fixing mechanism includes two positioning columns, which are fixedly connected to the top of the positioning platform. Two guide columns are fixedly connected to the top of the two positioning columns. A balancing block is slidably connected to the outside of the two guide columns. Locking bolts are threaded on both sides of the balancing block. An auxiliary component is provided outside the positioning groove. The above technical solution involves sliding the core mold into the positioning groove of the positioning platform. The arc-shaped surface of the core mold fits into the positioning groove, and its groove cooperates with the auxiliary components outside the positioning groove to complete the initial positioning. The pushing mechanism outside the top slide bar of the positioning platform drives the core mold to be fixed between the pushing bar and the positioning groove. The balancing block of the fixing mechanism slides down along the guide column on the positioning column until it contacts the horizontal surface of the core mold. After the core mold is finely leveled by the level on the balancing block, the locking bolts on both sides of the balancing block are tightened. Together with the positioning groove, auxiliary components and pushing mechanism, a rigid constraint is formed to achieve precise and stable positioning of the core mold, ensuring drilling accuracy and processing quality.
[0007] Preferably, the pushing mechanism includes two support plates, the outer side of which is slidably connected to the outside of the positioning platform, and an operating rod is rotatably connected to the top outer side of the support plate. Two transmission linkages are rotatably connected to the middle outer sides of the operating rod. Through the above technical solution: the operator moves the handle on the outside of the operating rod on the top of the support plate, and the two transmission links on the outside of the middle of the operating rod drive the two transmission links to rotate synchronously. The operating force is converted into driving force through the linkage transmission, so that the relevant parts are pushed towards the core mold, thereby achieving lateral clamping of the core mold. The support plate provides structural support, and the cooperation between the operating rod and the transmission links improves the convenience of operation and the stability of the thrust, and enhances the firmness of the core mold positioning.
[0008] Preferably, the auxiliary component includes two limiting blocks, the outer side of which is fixedly connected to the outside of the positioning groove, and the outer side of which is slidably connected to the inside of the core mold; Through the above technical solution: In the auxiliary components outside the positioning groove, two limiting blocks are fixed outside the positioning groove. When the core mold is slidably inserted along the positioning groove, the limiting blocks are slidably connected to the inside of the core mold. The groove of the core mold fits and cooperates with the limiting blocks, further constraining the circumferential rotation of the core mold. This works in conjunction with the positioning groove's restriction on the horizontal displacement of the core mold to complete the initial positioning of the core mold, laying the foundation for the precise operation of the subsequent fixing mechanism and pushing mechanism, and improving the stability of the initial positioning of the core mold.
[0009] Preferably, a level is fixedly connected to the outside of the balancing block, and the bottom of the level is slidably connected to the top of the core mold; Through the above technical solution: the level fixed outside the balancing block slides down along the guide column with the balancing block, and the bottom of the level is slidably connected to the top of the core mold. The level provides real-time feedback on the level status of the core mold. If it is not level, the position of the core mold is finely adjusted until the bubble of the level is centered, which actively eliminates the tilt deviation of the core mold, ensures the level accuracy of the core mold, provides a horizontal reference for the application of vertical pressure after the subsequent locking bolts are fixed, and improves the positioning accuracy of the core mold.
[0010] Preferably, the two transmission links are externally rotatably connected to a push column, and the push column is externally slidably connected to the top of the support plate; Through the above technical solution: when the operating lever drives the two transmission links to rotate, the push column connected to the outside of the transmission links moves with it. The push column slides along the top of the support plate, converting the swing of the transmission links into linear thrust, applying pressure towards the core mold. The support plate provides sliding guidance for the push column. The transmission links and the push column cooperate to achieve effective force transmission, enhance the lateral clamping effect on the core mold, and improve positioning stability.
[0011] Preferably, a limiting frame is fixedly connected to the top of the support plate, and the inner side of the limiting frame is slidably connected to the outside of the push column; Through the above technical solution: the limiting frame fixed at the top of the support plate forms a sliding constraint on the pushing column. When the pushing column moves under the drive of the transmission link, the inner side of the limiting frame restricts the movement trajectory of the pushing column, ensuring that it moves in a straight line towards the core mold, avoiding the dispersion of thrust caused by deviation. The support plate provides the installation base for the limiting frame. The three work together to improve the power transmission accuracy and enhance the stability and reliability of the lateral clamping of the core mold.
[0012] Preferably, a sliding block is fixedly connected to the bottom of the support plate, and multiple adjustment slots are provided on the outer sides of the positioning platform, with the outer side of the sliding block slidably connected to the inside of the adjustment slots; The above technical solution involves a sliding block fixed at the bottom of the support plate, which is embedded in the adjustment grooves on both sides of the positioning platform. The position of the support plate is adjusted by sliding the sliding block in the adjustment groove, adapting to core molds of different sizes. Multiple adjustment grooves provide multiple adjustment options. The cooperation between the sliding block and the adjustment groove achieves stable positioning of the support plate, laying the foundation for the movement of the transmission link and push column, and improving the adaptability and operational flexibility of the push mechanism to core molds of different specifications.
[0013] Preferably, a fixing strip is fixedly connected to the outside of the two push columns, and the fixing strip is slidably connected to the outside of the core mold; Through the above technical solution: when the push column moves, the fixed strip on its outside moves synchronously towards the core mold. The outside of the fixed strip slides into contact with the core mold and applies lateral pressure, concentrating the thrust of the two push columns to the core mold. The large-area contact between the fixed strip and the core mold enhances the clamping stability, avoids excessive local force causing the core mold to shift, and works with the push column to achieve uniform lateral constraint on the core mold, thereby improving positioning accuracy.
[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. By fitting the positioning groove to the arc surface of the core mold and the limiting block to the groove of the core mold, the core mold is initially constrained in terms of horizontal displacement and circumferential rotation. The balancing pressure block, combined with the guide column, slides down to contact the core mold. With the help of the level instrument for real-time detection and fine adjustment, the tilt deviation of the core mold is actively eliminated to ensure horizontal accuracy. After tightening the locking bolt, the balancing pressure block applies vertical pressure, which, together with the positioning groove, the limiting block, and the push bar, forms a rigid constraint system, making the core mold and the tooling form a stable whole. During drilling, it can effectively resist cutting force, avoid displacement and vibration, and improve drilling quality and mold consistency.
[0015] 2. By engaging and disengaging the sliding block and adjusting groove, the position of the support plate can be quickly adjusted to flexibly adapt to core molds of different sizes. Operators can drive the transmission linkage and push the column by turning the operating lever handle, so that the fixing strip applies a lateral clamping force to the core mold. The operation is simple and labor-saving, reducing the intensity of manual operation. With the close contact between the fixing strip and the core mold, the clamping force can be ensured to be uniform and stable, effectively preventing the core mold from shifting during processing, and significantly improving the positioning accuracy and processing reliability. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of a positioning fixture for drilling and machining blow molding molds proposed in this utility model.
[0017] Figure 2 This is a schematic diagram of the guide column of a positioning fixture for drilling and machining blow molding molds proposed in this utility model.
[0018] Figure 3 This is a schematic diagram of the structure of the balancing pressure block of the positioning fixture for drilling and machining blow molding molds proposed in this utility model.
[0019] Figure 4 yes Figure 3 Enlarged view of point A in the middle.
[0020] Explanation of reference numerals in the attached figures: 1. Positioning platform; 2. Core mold; 3. Positioning hole; 4. Fixing mechanism; 41. Positioning column; 42. Guide column; 43. Locking bolt; 44. Balance block; 45. Auxiliary component; 451. Limiting block; 452. Level; 5. Pushing mechanism; 51. Support plate; 52. Adjusting groove; 53. Sliding block; 54. Operating rod; 55. Fixing strip; 56. Transmission link; 57. Pushing column; 58. Limiting frame; 6. Positioning groove. Detailed Implementation
[0021] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.
[0022] Example: A positioning fixture for drilling holes in a blow molding die, referring to... Figures 1 to 3 The fixture includes a positioning platform 1, which serves as the basic support structure for the entire tooling. The positioning platform 1 has a positioning groove 6 inside, and a fixing mechanism 4 is set on the top of the positioning platform 1. The fixing mechanism 4 applies vertical pressure to the core mold 2 and calibrates the horizontal position to achieve final rigid fixation. The core mold 2 is slidably connected to the outside of the positioning groove 6. The positioning groove 6 fits against the arc surface of the core mold 2, initially limiting the horizontal displacement of the core mold 2. Two positioning holes 3 are opened inside the core mold 2. A pushing mechanism 5 is set on the outside of the positioning platform 1. The pushing mechanism 5 applies lateral thrust to the core mold 2 through mechanical transmission to achieve auxiliary fixation in the horizontal direction. The fixing mechanism 4 includes two positioning columns 41, which are externally fixedly connected to the top of the positioning platform 1. Two guide columns 42 are fixedly connected to the top of the two positioning columns 41. The positioning columns 41 provide the mounting base for the guide columns 42. The two guide columns 42 are externally slidably connected to a balance block 44. The guide columns 42 provide a vertical sliding track for the balance block 44 to ensure the movement accuracy of the block. The balance block 44 is internally threaded with locking bolts 43 on both sides. The locking bolts 43 apply a vertical preload by tightening, which firmly fixes the balance block 44 to the outside of the guide columns 42 and firmly fixes the core mold 2 in the positioning groove 6. An auxiliary component 45 is provided on the outside of the positioning groove 6. The auxiliary component 45 assists in constraining the circumferential rotation of the core mold 2 and achieves horizontal calibration. The auxiliary component 45 includes two limiting blocks 451. The limiting blocks 451 are externally fixedly connected to the outside of the positioning groove 6. The limiting blocks 451 are embedded in the groove of the core mold 2 to restrict the circumferential rotation of the core mold 2 and prevent rotational deviation during processing. The limiting blocks 451 are externally slidably connected to the inside of the core mold 2. The level 452 is externally fixedly connected to the outside of the balancing block 44. The bottom of the level 452 is slidably connected to the top of the core mold 2. The balancing block 44 is used to support the level 452. The level 452 detects the horizontal state of the core mold 2 by the position of the bubble, providing a visual basis for horizontal calibration. Specifically, the core mold 2 is placed into the positioning groove 6 of the positioning platform 1. The positioning groove 6 fits against the arc surface of the core mold 2 to initially limit horizontal displacement. The limiting block 451 outside the positioning groove 6 is embedded in the groove of the core mold 2 to constrain circumferential rotation. After the pushing mechanism 5 applies a lateral thrust to the core mold 2 to assist in fixing, the balancing block 44 slides down the guide post 42 at the top of the positioning post 41. The level 452 outside the block contacts the top of the core mold 2. The level is detected by the bubble position and finely adjusted to be level. Finally, the locking bolts 43 on both sides of the balancing block 44 are tightened to apply vertical preload, and the core mold 2 is firmly fixed in the positioning groove 6 to complete the positioning.
[0023] Reference Figure 1 , Figure 3 and Figure 4The pushing mechanism 5 includes two support plates 51, which are the main support frames of the pushing mechanism 5. The support plates 51 are slidably connected to the outside of the positioning platform 1. An operating rod 54 is rotatably connected to the top outer side of the support plate 51. A handle is provided at the outer end of the operating rod 54. Power is transmitted by rotation. Two transmission links 56 are rotatably connected to the middle outer sides of the operating rod 54. A pushing column 57 is rotatably connected to the outside of the two transmission links 56. The transmission links 56 convert the rotational motion of the operating rod 54 into the linear motion of the pushing column 57, thereby realizing the transmission of force and the conversion of direction. The external sliding connection of the push column 57 is to the top of the support plate 51. The push column 57 slides along the top of the support plate 51 to ensure a linear motion trajectory. The top of the support plate 51 is fixedly connected to the limit frame 58. The inner side of the limit frame 58 is slidably connected to the outside of the push column 57. The limit frame 58 constrains the movement direction of the push column 57 to prevent it from deviating and to ensure transmission accuracy. The bottom of the support plate 51 is fixedly connected to the sliding block 53. The sliding block 53 is inserted into the adjustment groove 52 to cooperate and change its position. Multiple adjustment slots 52 are provided on both sides of the positioning platform 1. The sliding block 53 is slidably connected to the inside of the adjustment slot 52. The adjustment slot 52 provides multiple adjustment positions to meet the adaptation requirements of different sized core molds 2. The two push columns 57 are fixedly connected to the outside of the fixing strip 55. The push column 57 is used to directly push the fixing strip 55 to move. The fixing strip 55 increases the contact area with the core mold 2, making the clamping force more evenly distributed. The fixing strip 55 is slidably connected to the outside of the core mold 2. Specifically, the operator slides the sliding block 53 at the bottom of the support plate 51 in the adjustment groove 52 of the positioning platform 1 to adjust the position to fit the core mold 2 of different sizes. Then, the operator moves the handle at the outer end of the operating rod 54. The operating rod 54 rotates and drives the transmission connecting rods 56 on both sides to move. The transmission connecting rods 56 convert the rotational motion into the linear motion of the pushing column 57, which slides along the top of the support plate 51 and maintains its trajectory under the constraint of the limit frame 58. This pushes the externally fixed fixing strip 55 to contact the core mold 2 and apply a uniform lateral clamping force.
[0024] The implementation principle of this application embodiment is as follows: The core mold 2 is aligned with the positioning groove 6 of the positioning platform 1 and slid into it along the groove. At this time, the arc surface of the core mold 2 fits with the positioning groove 6, initially restricting the horizontal displacement of the core mold 2. The core mold 2 has a groove that fits with the limiting block 451, further restricting the circumferential rotation of the core mold 2, completing the initial positioning. The operator pulls out the sliding block 53 and inserts it into the adjusting groove 52 to flexibly adjust the position of the support plate 51 to adapt to core molds 2 of different sizes. Then, the operator pulls the handle on the operating rod 54, and the operating rod 54 rotates accordingly, thereby driving the transmission connecting rods on both sides to move synchronously, thereby driving the push column 57 to slide along the top of the support plate 51. The push column 57 drives the fixing strip 55 synchronously. Moving forward, the fixing strip 55 applies a lateral clamping force after contacting the outside of the core mold 2, thereby achieving a stable clamping and fixing of the core mold 2. The balance block 44 is manually controlled to slide down along the guide post 42 of the positioning post 41 until the bottom of the block contacts the horizontal surface of the core mold 2. The level 452 on the balance block 44 provides real-time feedback on the horizontal status of the core mold 2. If it is not horizontal, the position of the core mold 2 is finely adjusted until the bubble of the level 452 is centered to ensure that the core mold 2 is horizontal. After horizontal calibration, the locking bolts 43 on both sides of the balance block 44 are tightened. The bolts are screwed into the threaded holes of the positioning post 41, and the balance block 44 applies vertical pressure to the core mold 2. With the constraint of the positioning groove 6, the limit block 451, and the push strip 56, the positioning of the core mold 2 is achieved.
[0025] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.
Claims
1. A positioning fixture for drilling holes in a blow molding die, comprising a positioning platform (1), characterized in that: The positioning platform (1) has a positioning groove (6) inside, a fixing mechanism (4) is provided on the top of the positioning platform (1), a core mold (2) is slidably connected to the outside of the positioning groove (6), two positioning holes (3) are opened inside the core mold (2), and a pushing mechanism (5) is provided on the outside of the positioning platform (1). The fixing mechanism (4) includes two positioning columns (41), the two positioning columns (41) are externally fixedly connected to the top of the positioning platform (1), the top of the two positioning columns (41) is fixedly connected to two guide columns (42), the two guide columns (42) are externally slidably connected to a balancing block (44), the two sides of the balancing block (44) are internally threaded with locking bolts (43), and the positioning groove (6) is externally provided with an auxiliary component (45).
2. The positioning fixture for drilling and machining blow molding molds according to claim 1, characterized in that: The pushing mechanism (5) includes two support plates (51). The outside of the support plates (51) is slidably connected to the outside of the positioning platform (1). An operating rod (54) is rotatably connected to the top outer side of the support plates (51). Two transmission links (56) are rotatably connected to the middle outer sides of the operating rod (54).
3. The positioning fixture for drilling and machining blow molding molds according to claim 2, characterized in that: The auxiliary component (45) includes two limiting blocks (451), the outside of which is fixedly connected to the outside of the positioning groove (6), and the outside of which is slidably connected to the inside of the core mold (2).
4. The positioning fixture for drilling and machining blow molding molds according to claim 2, characterized in that: A level (452) is fixedly connected to the outside of the balancing block (44), and the bottom of the level (452) is slidably connected to the top of the core mold (2).
5. The positioning fixture for drilling and machining blow molding molds according to claim 4, characterized in that: The two transmission links (56) are externally rotatably connected to a push column (57), and the push column (57) is externally slidably connected to the top of the support plate (51).
6. The positioning fixture for drilling and machining blow molding molds according to claim 5, characterized in that: The top of the support plate (51) is fixedly connected to a limiting frame (58), and the inner side of the limiting frame (58) is slidably connected to the outside of the push column (57).
7. The positioning fixture for drilling and machining blow molding molds according to claim 6, characterized in that: The bottom of the support plate (51) is fixedly connected to a sliding block (53), and multiple adjustment slots (52) are opened on both sides of the outer side of the positioning platform (1). The outer side of the sliding block (53) is slidably connected to the inside of the adjustment slot (52).
8. The positioning fixture for drilling and machining blow molding molds according to claim 7, characterized in that: The two push columns (57) are externally fixedly connected to a fixing strip (55), and the fixing strip (55) is externally slidably connected to the outside of the core mold (2).