A fixture for modifying a mold

Abstract

The utility model provides a kind of clamping fixture for modifying mould, comprising: magnetic base and multiple clamping seats, the top of the clamping seat is provided with clamping hanging platform, the bottom of the clamping seat is provided with the magnetic attraction element of the top magnetic attraction cooperation of the magnetic base, adjusting groove and locking part are provided on the clamping hanging platform, the locking part is movably matched with the adjusting groove, the locking part can be used for locking cooperation with workpiece, the top and bottom of the clamping hanging platform are formed with the support part for supporting workpiece. Relative to prior art, the clamping fixture for modifying mould of the utility model can adjust the position of clamping seat within the range of magnetic base, suitable for different size workpieces, and the size of clamping seat is fixed, the clamping error is small, the calibration time is reduced, the clamping speed is improved, and the workpiece can be placed on the top of clamping hanging platform or hung on the bottom of clamping hanging platform, meeting the position requirement when different workpieces are modified.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a clamping fixture for modifying molds. Background Technology

[0002] In plastic mold manufacturing, due to the characteristics of the product, mold modification is a very important part of the mold making process. In particular, the efficiency of mold modification is the most important factor affecting the rapid mass production of the entire mold.

[0003] Modifying mold parts often requires disassembling inserts. Inserts must be designed with mounting platforms, which are mainly supported on the bottom surface of the mold core. Because the top surface of the mold core is irregular, it cannot be fixedly clamped on the machine tool. The traditional machining clamping method is to use a vise for clamping, but because the height and stroke of the vise are insufficient, slightly larger workpieces cannot be clamped, and when clamping small parts, there is instability in the clamping. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies in the prior art and provide a clamping fixture for modifying molds.

[0005] One embodiment of this utility model provides a clamping fixture for modifying a mold, comprising: Magnetic base; Multiple clamping seats are provided, with a clamping platform on the top of each clamping seat and a magnetic suction element at the bottom of each clamping seat that magnetically engages with the top of the magnetic suction base. The clamping platform is provided with an adjustment groove and a locking element, which movably engages with the adjustment groove and is used to lock the clamping element to a workpiece. Support portions for supporting the workpiece are formed at both the top and bottom of the clamping platform. A clearance space is formed between the bottom of the clamping platform and the magnetic suction base to allow for workpiece placement, or a clearance space is formed between the bottom of the clamping platform and the magnetic suction element to allow for workpiece placement.

[0006] In some alternative embodiments, the locking element includes a plurality of threaded elements that pass through the adjustment groove and can be used to engage with the threads of the workpiece.

[0007] In some optional embodiments, the clamping base includes an upper column, a middle column, a lower column, and the magnetic suction member. The magnetic suction member is magnetically attracted to the magnetic suction base. The lower column is disposed on the magnetic suction member. The middle column is detachably disposed between the lower column and the upper column. The upper column is provided with the clamping platform.

[0008] In some alternative embodiments, the clamping base includes a plurality of central columns with different heights, and one of the central columns is detachably disposed between the lower column and the upper column.

[0009] In some optional embodiments, the bottom of the upper column is provided with an upper threaded post, the top of the lower column is provided with a lower threaded post, and the top and bottom of the middle column are respectively provided with threaded holes, and the upper threaded post and the lower threaded post are respectively threadedly engaged with the threaded holes.

[0010] In some alternative embodiments, the lower column is rotatably engaged with the magnetic attractor.

[0011] In some alternative embodiments, the clamping base is detachably provided with an electromagnet assembly for magnetically engaging with the workpiece. The electromagnet assembly is located on the side of the clamping base and in the clearance space, or the electromagnet assembly is located on the support portion at the top of the clamping table.

[0012] In some alternative embodiments, when the electromagnet assembly is located on the support at the top of the clamping table, the electromagnet assembly is locked to the support at the top of the clamping table by the locking member.

[0013] In some alternative embodiments, the clamping base is detachably provided with an electromagnet assembly for magnetically engaging with the workpiece. The electromagnet assembly is located on the side of the clamping base and in the clearance space, or the electromagnet assembly is located on the support portion at the top of the clamping table. When the electromagnet assembly is located on the side of the clamping base, the electromagnet assembly magnetically engages with the central column.

[0014] Compared to existing technologies, the clamping fixture of this utility model for modifying molds can arbitrarily adjust the position of the clamping seat within the range of the magnetic base, making it suitable for workpieces of different sizes. Moreover, the size of the clamping seat is fixed, resulting in small clamping errors, reducing calibration time, and increasing clamping speed. Furthermore, the workpiece can be placed on the top of the clamping platform or hung at the bottom of the clamping platform to meet the positional requirements of different workpieces when modifying molds. In addition, the magnetic base can hold a sufficient number of clamping seats at the same time. The sufficient number of clamping seats and the large enough space allow for the simultaneous clamping of multiple small workpieces, enabling multiple small workpieces to be modified at the same time, thus improving efficiency.

[0015] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a clamping fixture for modifying a mold according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the clamping base according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the clamping base and the workpiece according to an embodiment of the present invention, when the workpiece is clamped at the bottom of the clamping table; Figure 4 This is a schematic diagram of the structure of the clamping base and the workpiece in one embodiment of the present invention when the workpiece is clamped on the top of the clamping table; Figure 5 This is a schematic diagram of one side of a clamping fixture for modifying a mold, according to another embodiment of the present invention. Figure 6 This is an exploded view of the clamping base according to another embodiment of the present invention; Figure 7 This is a schematic diagram of the clamping base according to another embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 10. Magnetic base; 20. Clamping seat; 21. Clamping platform; 211. Adjustment groove; 212. Locking element; 22. Magnetic element; 23. Clearance space; 24. Upper column; 241. Upper threaded column; 25. Middle column; 251. Threaded hole; 26. Lower column; 261. Lower threaded column; 27. Electromagnet assembly; 30. Workpiece; Detailed Implementation The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0021] Please see Figure 1 and Figure 2 This invention provides a clamping fixture for modifying a mold, comprising: Magnetic base 10; Multiple clamping seats 20 are provided. The top of the clamping seat 20 is provided with a clamping platform 21. The bottom of the clamping seat 20 is provided with a magnetic suction member 22 that magnetically engages with the top of the magnetic suction base 10. The clamping platform 21 is provided with an adjustment groove 211 and a locking member 212. The locking member 212 is movably engaged with the adjustment groove 211 and can be used to lock the workpiece 30. The top and bottom of the clamping platform 21 are both provided with support parts for supporting the workpiece 30. A clearance space 23 is formed between the bottom of the clamping platform 21 and the magnetic suction base 10 to avoid placing the workpiece 30. Alternatively, a clearance space 23 is formed between the bottom of the clamping platform 21 and the magnetic suction member 22 to avoid placing the workpiece 30.

[0022] It should be noted that workpiece 30 can be a mold core or other structure.

[0023] The working principle of a clamping fixture for modifying a mold according to one embodiment of the present invention is explained below: The clamping base 20 can be attached to any position on the top of the magnetic base 10, so the position of the clamping base 20 can be easily adjusted to accommodate workpieces 30 of different sizes.

[0024] The locking element 212 on the clamping table 21 can be connected to the workpiece 30, thereby locking the workpiece 30 on the clamping table 21. The position of the locking element 212 can be finely adjusted by the adjusting groove 211, thereby facilitating the connection between the locking element 212 and the workpiece 30.

[0025] Please see Figure 3 When the workpiece 30 is positioned at the top of the support and the part requiring mold modification is located at the top of the workpiece 30, part of the workpiece 30 is extended into the clearance space 23. Then, the top of the workpiece 30 abuts against the support at the bottom of the clamping table 21. Next, the workpiece 30 is locked to the bottom of the table by the locking member 212. At this time, the part of the workpiece 30 that requires mold modification is facing upward, thus facilitating the mold modification of the workpiece 30.

[0026] Please see Figure 4 When the workpiece 30 is positioned at the bottom of the support part and the parts requiring mold modification are at the top of the workpiece 30, the workpiece 30 is placed on the top of the clamping table 21, with the bottom of the workpiece 30 abutting against the support part at the top of the clamping table 21. Then, the workpiece 30 is locked to the top of the clamping table 21 by the locking member 212. At this time, the parts of the workpiece 30 that require mold modification are facing upwards, thus facilitating the mold modification of the workpiece 30.

[0027] It should be noted that the magnetic base 10 can be a magnet, or a magnet can be arranged on the top of the magnetic base 10, while the clamping seat 20 is made of a magnetic material, such as iron, to facilitate magnetic attraction between the clamping seat 20 and the magnetic base 10. Alternatively, the magnetic base 10 can be made of iron, while at least a portion of the clamping seat 20 can be made of magnet. In this embodiment, the magnetic member 22 is made of iron, and the top of the magnetic base 10 is made of magnet, so that the clamping seat 20 can be attracted to the magnetic base 10 through the magnetic member 22.

[0028] In one embodiment, multiple clamping seats 20 can be arranged on the magnetic base 10, each group including several clamping seats 20. The clamping seats 20 in the same group are used to clamp a small workpiece 30, thereby enabling multiple small workpieces 30 to be clamped on the magnetic base 10 at the same time. Then, the magnetic base 10 is assembled onto the processing equipment. The top area of ​​the magnetic base 10 is within the processing stroke range of the processing equipment, thus effectively utilizing the processing stroke range of the processing equipment and enabling multiple workpieces 30 to be processed in a single assembly, effectively improving efficiency.

[0029] In some alternative embodiments, the locking member 212 includes a plurality of threaded members passing through the adjusting groove 211 and capable of threaded engagement with the workpiece 30. The workpiece 30 is typically designed with threaded holes 251, and the workpiece 30 is detachably locked by the threaded engagement of the threaded members with the threaded holes 251 of the workpiece 30.

[0030] Please see Figures 5 to 7 The specific structure of the clamping base 20 can be designed according to actual needs. For example, in some optional embodiments, the clamping base 20 includes an upper column 24, a middle column 25, a lower column 26, and a magnetic suction member 22. The magnetic suction member 22 magnetically engages with the magnetic suction base 10. The lower column 26 is mounted on the magnetic suction member 22. The middle column 25 is detachably mounted between the lower column 26 and the upper column. A clamping platform 21 is provided on the upper column. Through the detachable design of the upper column 24, middle column 25, and lower column 26, the upper column 24 can be designed uniformly, and when clamping bases 20 of different heights are required, only the height of the middle column 25 needs to be changed, which facilitates production assembly.

[0031] To facilitate adjustment of the height of the clamping platform 21, in some optional embodiments, the clamping base 20 includes multiple central columns 25 with different heights. One central column 25 is detachably disposed between the lower column 26 and the upper column. The central column 25 of different heights can be replaced according to the required clamping height of the workpiece 30, so that the workpiece 30 can be clamped at a suitable height.

[0032] The detachable connection between the middle column 25 and the lower column 26 and the upper column 24 can be designed according to actual needs. For example, in some optional embodiments, the bottom of the upper column 24 is provided with an upper threaded post 241, the top of the lower column 26 is provided with a lower threaded post 261, and the top and bottom of the middle column 25 are respectively provided with threaded holes 251. The upper threaded post 241 and the lower threaded post 261 are respectively threaded into the threaded holes 251, thereby realizing the detachable connection between the middle column 25 and the lower column 26 and the upper column 24.

[0033] In some alternative embodiments, the lower column 26 is rotatably engaged with the magnetic suction member 22, and the angle of the lower column 26 relative to the magnetic suction member 22 is adjusted, thereby enabling the adjustment of the angle of the clamping table 21 on the upper column 24, so that the angle of the clamping table 21 can be flexibly adjusted according to the workpiece 30.

[0034] In some optional embodiments, an electromagnet assembly 27 for magnetically engaging with the workpiece 30 is detachably provided on the clamping base 20. The electromagnet assembly 27 is located on the side of the clamping base 20 and in the clearance space 23, or the electromagnet assembly 27 is located on the support portion at the top of the clamping platform 21. To facilitate quick and easy fixation of the workpiece 30, when the workpiece 30 is clamped on the top of the clamping base 20 or in the clearance space 23, the electromagnet assembly 27 can also be used to attract the workpiece 30, thereby attracting the workpiece 30 to the support portion at the top of the clamping base 20 or to the side of the clamping base 20, thus achieving the clamping of the workpiece 30.

[0035] In some alternative embodiments, when the electromagnet assembly 27 is located on the support portion at the top of the clamping table 21, the electromagnet assembly 27 is locked to the support portion at the top of the clamping table 21 by the locking member 212. In this embodiment, the electromagnet assembly 27 is locked to the support portion at the top of the clamping table 21 using the locking member 212, thereby simplifying the structure by using the locking member 212 to install the electromagnet assembly 27. Of course, the electromagnet assembly 27 can also be magnetically engaged with the clamping table 21, thereby achieving detachable installation of the electromagnet assembly 27.

[0036] In some alternative embodiments, when the electromagnet assembly 27 is located on the side of the clamping base 20, the electromagnet assembly 27 and the central column 25 are magnetically attracted to each other, thereby achieving quick assembly of the electromagnet assembly 27 and the central column 25. Of course, the electromagnet assembly 27 can also be detachably connected to the central column 25 using screws or other suitable structures. Since only the central column 25 needs to be designed to be magnetic, while the upper column 24's magnetic properties are determined based on actual needs, and the lower column 26 does not need to be magnetic, the central column 25, upper column 24, and lower column 26 can be made of different materials according to actual needs, offering high flexibility.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping fixture for modifying a mold, characterized in that, include: Magnetic base; Multiple clamping seats are provided, with a clamping platform on the top of each clamping seat and a magnetic suction element at the bottom of each clamping seat that magnetically engages with the top of the magnetic suction base. The clamping platform is provided with an adjustment groove and a locking element, which movably engages with the adjustment groove and is used to lock the clamping element to a workpiece. Support portions for supporting the workpiece are formed at both the top and bottom of the clamping platform. A clearance space is formed between the bottom of the clamping platform and the magnetic suction base to allow for workpiece placement, or a clearance space is formed between the bottom of the clamping platform and the magnetic suction element to allow for workpiece placement.

2. The clamping fixture for modifying a mold according to claim 1, characterized in that: The locking element includes several threaded parts, which pass through the adjustment groove and can be used to engage with the workpiece threads.

3. A clamping fixture for modifying a mold according to claim 1, characterized in that: The clamping base includes an upper column, a middle column, a lower column, and the magnetic suction component. The magnetic suction component is magnetically attracted to the magnetic suction base. The lower column is disposed on the magnetic suction component. The middle column is detachably disposed between the lower column and the upper column. The upper column is provided with the clamping platform.

4. A clamping fixture for modifying a mold according to claim 3, characterized in that: The clamping base includes multiple central columns with different heights, and one of the central columns is detachably disposed between the lower column and the upper column.

5. A clamping fixture for modifying a mold according to claim 3, characterized in that: The upper column has an upper threaded post at its bottom, the lower column has a lower threaded post at its top, and the middle column has threaded holes at its top and bottom. The upper threaded post and the lower threaded post are respectively threaded into the threaded holes.

6. A clamping fixture for modifying a mold according to claim 3, characterized in that: The lower column is rotatably engaged with the magnetic suction component.

7. A clamping fixture for modifying a mold according to any one of claims 1 to 6, characterized in that: The clamping base is detachably provided with an electromagnet assembly for magnetically engaging with the workpiece. The electromagnet assembly is located on the side of the clamping base and in the clearance space, or the electromagnet assembly is located on the support portion at the top of the clamping platform.

8. A clamping fixture for modifying a mold according to claim 7, characterized in that: When the electromagnet assembly is located on the support portion at the top of the clamping platform, the electromagnet assembly is locked to the support portion at the top of the clamping platform by the locking member.

9. A clamping fixture for modifying a mold according to any one of claims 3 to 6, characterized in that: The clamping base is detachably provided with an electromagnet assembly for magnetically engaging with the workpiece. The electromagnet assembly is located on the side of the clamping base and in the clearance space, or the electromagnet assembly is located on the support portion at the top of the clamping table. When the electromagnet assembly is located on the side of the clamping base, the electromagnet assembly magnetically engages with the central column.

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