Clamping fixture for a die machining machine tool

Abstract

The utility model discloses a kind of clamping tool for mould processing machine tool, including the clamping limiting device of being set in the machining machine tool and being preset processing area circumference, the clamping limiting device includes the base of being set corresponding machining machine tool installation slot, the clamping assembly for being used to the vertical clamping of mould workpiece and being set on base and the limiting component for being used to the horizontal limiting of mould workpiece and being set on base;The utility model is along mould workpiece circumference by installation slot on machining machine tool Arrangement clamping limiting device, and through the preliminary positioning of limiting component on clamping limiting device to mould workpiece before and through clamping grip to mould workpiece in vertical direction Clamping, limiting component also can be realized clamping to mould workpiece in horizontal direction while being located in the opposite side of mould workpiece, avoid mould workpiece from being deviated by vibration in processing process, ensure that the machining precision of mould workpiece in processing process is not affected.

Description

Technical Field

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

[0002] Molds are various molds used in industrial production to obtain the desired products by methods such as injection molding, blow molding, and stamping. Different products require different molds, so corresponding molds are needed in injection molding and stamping processes. In the processing of molds, positioning fixtures are needed to clamp and fix the mold workpiece.

[0003] Currently, the machining of small mold components such as cutting blocks and small wedges is typically performed using CNC machine tools or vertical machining centers. These machines usually employ self-centering chucks and bench vises to hold the parts. However, for large mold components such as mold bases, punches, and blank holders, which require machining using gantry machining centers, the machining process typically involves first rough machining the bottom surface of the mold to create a machining datum for subsequent surface and mounting surface machining, ensuring the positional accuracy of each mounting surface. In existing gantry machining centers, due to the significant weight of large mold components like mold bases, punches, and blank holders, operators typically hoist the components directly onto the machine tool, use support blocks to initially flatten the bottom surface, and then use the component's own weight for rough machining of the bottom and other mounting surfaces. However, during machining, vibrations from machine tool movement or tool contact with the component can cause component misalignment or changes in bottom surface flatness, affecting the final machining accuracy.

[0004] Therefore, it is necessary to develop and design a clamping fixture for mold processing machine tools to ensure the machining accuracy of mold components. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a clamping fixture for a mold processing machine tool. By using the mounting slot on the processing machine tool to arrange clamping and limiting devices around the circumference of the mold workpiece, the limiting components on the clamping and limiting devices are used to initially position the mold workpiece and clamp the mold workpiece in the vertical direction. At the same time, the limiting components located on the opposite side of the mold workpiece can also clamp the mold workpiece in the horizontal direction, so as to avoid the mold workpiece being vibrated and shifted during the processing, which would lead to poor processing accuracy of the mold workpiece.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a clamping fixture for a mold processing machine tool, comprising a clamping and limiting device disposed around a preset processing area on the machine tool, the clamping and limiting device comprising a base corresponding to the mounting slot of the machine tool, a clamping component disposed on the base for vertically clamping the mold workpiece, and a limiting component disposed on the base for horizontally limiting the mold workpiece.

[0007] Furthermore, the clamping assembly includes a connector, the lower end of which extends through the base into the mounting groove, and the lower end of the connector is provided with a limiting part for cooperating with the mounting groove of the machining tool to prevent detachment.

[0008] Furthermore, the upper end of the connector is provided with a clamping plate and fasteners for preventing the clamping part from falling off the connector. The clamping plate and the limiting part form a pull structure and clamp the mold workpiece vertically.

[0009] Furthermore, it also includes a support block disposed between the clamping plate and the base, the support block being used to support the other end of the clamping plate located on the opposite side of the clamping end.

[0010] Furthermore, the limiting component includes a limiting plate disposed at one end of the base near the mold workpiece, the limiting plate being drivable to move closer to or away from the mold workpiece with a single degree of freedom.

[0011] Furthermore, it also includes a drive assembly disposed on the mounting base for driving the limit plate to move, the drive assembly including a drive source for providing driving power and a drive rod disposed at the output end of the drive source.

[0012] Furthermore, the base has an L-shaped structure and the limiting plate is located on the vertical plate surface near the mold workpiece.

[0013] Furthermore, the limiting plate is provided with an anti-sliding block on the side near the mold workpiece for limiting contact with the mold workpiece.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] This invention utilizes the mounting slot on the machine tool to arrange a clamping and limiting device around the circumference of the mold workpiece. The limiting component on the clamping and limiting device performs preliminary positioning of the mold workpiece and clamps the mold workpiece vertically. At the same time, the limiting component on the opposite side of the mold workpiece can also clamp the mold workpiece horizontally, preventing the mold workpiece from being displaced by vibration during processing and ensuring that the processing accuracy of the mold workpiece is not affected.

[0016] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the installation of the clamping fixture and the machine tool in this utility model;

[0018] Figure 2 This is a schematic diagram of the clamping fixture used in a mold processing machine tool according to the present invention;

[0019] Figure 3 for Figure 2 Side view;

[0020] Figure 4 for Figure 2 Top view;

[0021] Figure 5 A top view of a clamping fixture for a mold processing machine tool, according to another embodiment;

[0022] The attached figures are labeled as follows: 1-machine tool; 2-mounting groove; 3-clamping and limiting device; 4-base; 5-connector; 6-limiting part; 7-fastener; 8-clamping plate; 9-support block; 10-drive rod; 11-limiting plate; 12-anti-slip block; 13-rotating handle; 14-bearing; 15-cylinder. Detailed Implementation

[0023] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only for illustrating the basic concept of this utility model. Unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0024] Please see Figure 1-4This embodiment discloses a clamping fixture for a mold processing machine tool, including a clamping and limiting device 3 disposed around a preset processing area on the machine tool 1. The clamping and limiting device 3 includes a base 4 corresponding to the mounting slot 2 of the machine tool 1, a clamping component disposed on the base 4 for vertically clamping the mold workpiece, and a limiting component disposed on the base 4 for horizontally limiting the mold workpiece. Currently, on the machine tool 1 of a gantry machining center used for processing large mold workpieces, the machining personnel usually first lay support blocks 9 in advance at the corresponding positions on the machine tool 1, and then hoist the mold workpiece onto the machine tool 1 and use the support blocks 9 to make the bottom surface of the mold workpiece in a flat state so as to facilitate roughing of the bottom surface. While machining is possible, the lack of corresponding tooling for positioning and clamping the mold workpiece can easily affect the machining accuracy of the bottom surface of the mold workpiece. Consequently, the machining reference will be poor when machining the subsequent working surfaces or mounting mating surfaces, affecting the overall machining quality. Therefore, this solution utilizes the mounting slot 2 on the machining tool 1 to arrange clamping and limiting devices 3 around the circumference of the mold workpiece. The limiting components on the clamping and limiting devices 3 are used to initially position the mold workpiece and clamp it vertically. At the same time, the limiting components located on the opposite side of the mold workpiece can also clamp it horizontally, preventing the mold workpiece from being displaced by vibration during machining and ensuring that the machining accuracy of the mold workpiece is not affected during the machining process.

[0025] In this embodiment, the clamping assembly includes a connector 5, the lower end of which extends through the base 4 into the mounting groove 2, and the lower end of the connector 5 is provided with a limiting part 6 for cooperating with the mounting groove 2 of the machine tool 1 to prevent detachment; combined with Figures 2 to 4 It can be seen that the connector 5 is a rod-shaped structural component, and the base 4 is provided with a through hole for the lower end of the connector 5 to pass through. A limiting part 6 is provided at the lower end of the connector 5 located in the mounting groove 2 on the machining tool 1. Figure 1 As shown, the limiting part 6 can slide freely in the horizontal direction within the mounting groove 2 to adjust the fixed position of the clamping limiting device 3 on the machine tool 1, facilitating subsequent limiting of the mold workpiece. The limiting part 6 can realize the connection between the clamping limiting device 3 and the machine tool 1. However, since the clamping limiting device 3 needs to clamp the mold workpiece in the vertical direction, the cross-sectional dimension of the limiting part 6 in the vertical direction is larger than the upper cross-sectional dimension of the mounting groove 2. Therefore, the limiting part 6 can be installed into the machine tool 1 from the side. At the same time, the rod diameter of the connecting part 5 needs to be smaller than the upper cross-sectional dimension of the mounting groove 2 to facilitate the movement of the clamping limiting device 3 on the machine tool 1.

[0026] In this embodiment, the upper end of the connector 5 is provided with a clamping plate 8 and a fastener 7 for preventing the clamping part from falling off the connector 5. The clamping plate 8 and the limiting part 6 form a pull structure and vertically clamp the mold workpiece; combined with Figures 2 to 4 It can be seen that the upper end of the connector 5 is a threaded section, and the clamping plate 8 is set on the connecting rod through the threaded connection. The clamping plate 8 is also provided with a waist-shaped through hole for the connector 5 to pass through. The waist-shaped through hole is mainly to facilitate the adjustment of the clamping area of ​​the clamping plate 8 on the workpiece, and the fastener 7 is a fastening bolt. By setting the clamping plate 8 and the limiting part 6 at both ends of the connector 5 respectively to form a pull structure, the clamping of the mold workpiece in the vertical direction is realized by the cooperation between the limiting part 6 and the mounting groove 2 of the processing machine tool 1 and the clamping plate 8 and the upper surface of the mold workpiece. The clamping plate 8 can be clamped and cooperated with any flat surface of the upper surface of the mold workpiece.

[0027] In this embodiment, a support block 9 is also included, which is disposed between the clamping plate 8 and the base 4. The support block 9 is used to support the other end of the clamping plate 8 located on the opposite side of the clamping end. Figure 1 As shown, since one end of the clamping plate 8 is clamped and engaged with the mold workpiece, in order to balance the force on the rear end of the clamping plate 8, a support block 9 is provided between the other end opposite the clamping end of the clamping plate 8 and the base 4. The height of the support block 9 is adjustable and can be set according to the specific use. The structure of the support block 9 is the support block 9 commonly used in the prior art, and will not be described in detail here.

[0028] In this embodiment, the limiting component includes a limiting plate 11 disposed on the base 4 near the mold workpiece end. The limiting plate 11 can be driven to move closer to or away from the mold workpiece with a single degree of freedom. Figure 1 and Figure 2 As shown, a limiting plate 11 for contacting the vertical plane of the mold workpiece is provided at one end of the base 4 near the mold workpiece. Since the clamping limiting device 3 is preset on the processing machine tool 1 according to the shape of the mold workpiece, the limiting plate 11 can perform a preliminary positioning of the landing position of the mold workpiece when it is hoisted. Then, the limiting components located on the opposite side can clamp the middle mold workpiece in the horizontal direction, further preventing the mold workpiece from being displaced by vibration during processing.

[0029] In this embodiment, a drive assembly is also included, mounted on the mounting base, for moving the limiting plate 11. The drive assembly includes a drive source for providing driving power and a drive rod 10 disposed at the output end of the drive source. Figure 2 , Figure 4 and Figure 5 As shown, the driver component can be configured according to the actual situation. Figure 4 Manual drive structure or Figure 5 The pneumatic drive structure in which Figure 4The drive rod 10 is a threaded rod, with one end connected and fixed to the limiting plate 11, and the other end cooperating with the handle 13 and bearing 14 set on the base 4. It is manually driven to move the limiting plate 11 closer to or away from the mold workpiece; while Figure 5 The drive rod 10 is a common rod, and the drive source is the cylinder 15. One end of the drive rod 10 is connected and fixed to the limit plate 11, and the other end is connected and fixed to the output end of the cylinder 15.

[0030] In this embodiment, the base 4 has an L-shaped structure and the limiting plate 11 is disposed on the vertical plate surface near the mold workpiece; combined with Figure 2 As shown, the base 4 is configured in an L-shape and the limiting plate 11 is located on the vertical plate surface near the mold workpiece, so as to limit the position when the limiting plate 11 is away from the mold workpiece.

[0031] In this embodiment, the limiting plate 11 is provided with an anti-sliding block 12 for contacting and limiting the mold workpiece on the side near the mold workpiece; wherein the anti-sliding block 12 is a component supported by a large friction system, and its contact surface shape can be designed according to actual needs, such as a plane, an arc surface, etc. By setting the anti-sliding block 12, the friction area or friction coefficient between the limiting plate 11 and the mold workpiece is increased, and the sliding between the mold workpiece and the limiting plate 11 is prevented.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clamping fixture for a mold processing machine tool, characterized in that: The device includes a clamping and limiting device disposed around a preset processing area on a machine tool. The clamping and limiting device includes a base disposed in a mounting slot of the machine tool, a clamping component disposed on the base for vertically clamping the mold workpiece, and a limiting component disposed on the base for horizontally limiting the mold workpiece. The clamping assembly includes a connector, the lower end of which extends through the base into the mounting groove, and the lower end of the connector is provided with a limiting part for cooperating with the mounting groove of the machine tool to prevent dislodgement; The limiting component includes a limiting plate disposed at one end of the base near the mold workpiece, and the limiting plate can be driven to move closer to or away from the mold workpiece with a single degree of freedom.

2. The clamping fixture for a mold processing machine tool according to claim 1, characterized in that: The upper end of the connector is provided with a clamping plate and fasteners for preventing the clamping part from falling off the connector. The clamping plate and the limiting part form a pull structure and clamp the mold workpiece vertically.

3. The clamping fixture for a mold processing machine tool according to claim 2, characterized in that: It also includes a support block disposed between the clamping plate and the base, the support block being used to support the other end of the clamping plate located on the opposite side of the clamping end.

4. The clamping fixture for a mold processing machine tool according to claim 3, characterized in that: It also includes a drive assembly mounted on the mounting base for driving the limit plate to move, the drive assembly including a drive source for providing driving power and a drive rod disposed at the output end of the drive source.

5. The clamping fixture for a mold processing machine tool according to claim 4, characterized in that: The base has an L-shaped structure and the limiting plate is located on the vertical plate surface of the base near the mold workpiece.

6. The clamping fixture for a mold processing machine tool according to claim 1, characterized in that: The limiting plate is provided with an anti-sliding block on the side near the mold workpiece for limiting contact with the mold workpiece.

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