A jig for milling machine processing

Abstract

The utility model belongs to milling machine processing technical field discloses a jig for milling machine processing, including mould base, be provided with a plurality of clamping mechanisms on mould base, clamping mechanism includes sliding slot and clamping assembly, the both ends of sliding slot are all communicated with the mould groove that is matched with workpiece appearance, and the sliding slot and mould groove are set up on the mould base, and clamping assembly is installed in the sliding slot, the utility model discloses a plurality of clamping mechanisms can be set up, can carry out clamping to multiple workpieces simultaneously, is suitable for large quantities of workpiece production, and the mould groove cooperation clamping assembly that is matched with workpiece appearance can be set up, can realize the quick positioning and locking of workpiece, greatly reduces the size, form position tolerance fluctuation after workpiece processing, reduces the unqualified product rate, satisfies the quality requirement of precision machining, through setting up the jacking assembly, can drive the clamping block to the direction of far away from workpiece automatically after the release workpiece of clamping assembly, effectively avoids the phenomenon that causes workpiece surface scratch when manually pulling workpiece.

Description

Technical Field

[0001] This utility model relates to the field of milling machine processing technology, and in particular to a milling machine processing fixture. Background Technology

[0002] like Figures 8-9 As shown, traditional clamping methods (vises) are currently used to fix such workpieces when milling them. However, this clamping method has significant technical bottlenecks in practical applications, specifically: First, the correction operation after clamping the part relies on repeated manual adjustments, which is not only difficult to operate but also makes it hard to ensure the consistency of correction accuracy; Second, the instability of correction accuracy directly leads to fluctuations in part quality in subsequent processing stages, resulting in a high defect rate and failing to meet the quality requirements of precision machining; Third, the complex clamping and correction process significantly extends the processing cycle of a single workpiece, resulting in low processing efficiency; Fourth, the combination of the above-mentioned efficiency and quality issues makes traditional clamping methods unsuitable for large-scale production scenarios, severely restricting the capacity improvement and industrial application of such workpieces.

[0003] Therefore, a fixture for milling machine processing is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a milling machine fixture that solves or at least alleviates one or more of the aforementioned and other problems existing in the prior art.

[0005] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0006] A milling machine fixture includes a mold base, on which a plurality of clamping mechanisms for fixing a workpiece are provided. Each clamping mechanism includes a slide groove and a clamping assembly. Both ends of the slide groove are connected to a mold groove that matches the shape of the workpiece. The slide groove and the mold groove are formed on the mold base.

[0007] The clamping assembly is installed in the slide groove. The clamping assembly includes a drive block, which is movably installed in the slide groove. Clamping blocks are provided at both ends of the drive block. The clamping blocks are slidably installed in the slide groove. Inclined protrusions are fixedly connected to both ends of the drive block. An inclined guide groove is provided on the side of the clamping block near the drive block. The inclined protrusions are slidably installed in the inclined guide groove. The drive block is provided with a locking member that can press the drive block tightly onto the mold base. The mold base is provided with a lifting assembly that can lift the drive block upward when the clamping assembly releases the workpiece.

[0008] In a milling machine tool according to the present invention, the locking component includes a locking bolt, the mold base has a first threaded groove communicating with the slide groove, the drive block has a first countersunk hole, and the lower end of the screw of the locking bolt slides through the first countersunk hole and can be threadedly fixed in the first threaded groove.

[0009] In a milling machine fixture according to the present invention, the lifting assembly includes insert rods fixed on both sides of the bottom of the drive block, and the mold base has insertion holes corresponding to the insert rods. The insertion holes are connected to the slide grooves. The mold base has an inner cavity connected to the insertion holes. A movable block and a spring are provided in the inner cavity. The movable block can be lifted upward by the spring. The lower end of the insert rod can slide through the insertion hole and press against the movable block.

[0010] In a milling machine fixture according to the present invention, the bottom of the mold base is provided with a second threaded groove communicating with the inner cavity, and a headless screw is fixedly installed in the second threaded groove. The bottom of the spring presses against the top of the headless screw, and the top of the spring abuts against the bottom of the movable block.

[0011] In a milling machine fixture according to the present invention, the bottom of the mold base is provided with a chip removal hole communicating with the mold groove, and the bottom of the mold base is provided with a chip removal groove communicating with the chip removal hole, the end of the chip removal groove away from the chip removal hole extending to the edge of the mold base.

[0012] In a milling machine fixture according to the present invention, the mold base is provided with a plurality of second countersunk holes, and a fixing bolt is provided in the second countersunk holes. The mold base is fixed to the operating table of the milling machine by the fixing bolt.

[0013] This utility model has at least the following beneficial effects:

[0014] With multiple clamping mechanisms, multiple workpieces can be clamped simultaneously, making it suitable for mass production of workpieces.

[0015] By using a mold groove that matches the shape of the workpiece to engage with the clamping components, the workpiece can be quickly positioned and locked, significantly reducing the dimensional and geometric tolerance fluctuations after machining, reducing the defect rate, and meeting the quality requirements of precision machining.

[0016] By using the lifting component, the clamping block can be automatically driven away from the workpiece after the clamping component releases the workpiece, effectively avoiding scratches on the workpiece surface when manually pulling it out.

[0017] Chip removal holes and chip removal grooves are opened at the bottom of the mold base, and the chip removal holes are connected to the mold grooves and the chip removal grooves extend to the edge of the mold base: the chips generated during processing can fall into the chip removal holes through the mold grooves and then be discharged outside the mold base through the chip removal grooves, eliminating the need for manual cleaning of chips; at the same time, it can also help to discharge the processing fluid, avoiding interference from chips and accumulated fluid on the movement of clamping components or the machining accuracy of the workpiece, further ensuring the stability of processing quality. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram showing the state of the workpiece when clamped by this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the mold base of this utility model;

[0022] Figure 4 This is a schematic diagram of the mold base of this utility model from another perspective;

[0023] Figure 5 This is an exploded view of the clamping assembly of this utility model;

[0024] Figure 6 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 7 for Figure 6 A magnified structural diagram of part A in the diagram;

[0026] Figure 8 This is a schematic diagram of the workpiece structure to be processed;

[0027] Figure 9 This is a schematic diagram of the completed workpiece structure.

[0028] Explanation of icon numbers:

[0029] 1. Mold base; 101. Mold groove; 102. Slide groove; 103. First threaded groove; 104. Insertion hole; 105. Chip removal hole; 1051. Chip removal groove; 106. Inner cavity; 107. Second threaded groove; 108. Second countersunk hole; 109. Fixing bolt;

[0030] 2. Clamping assembly; 201. Drive block; 2011. Inclined protrusion; 2012. Insert rod; 2013. First countersunk hole; 202. Clamping block; 2021. Inclined guide groove; 203. Locking bolt;

[0031] 3. Movable block; 301. Spring; 302. Headless screw. Detailed Implementation

[0032] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0033] Please refer to Figures 1 to 9 As shown, an embodiment of this utility model provides a milling machine fixture, including a mold base 1. The mold base 1 is provided with several clamping mechanisms for fixing the workpiece. Each clamping mechanism includes a slide groove 102 and a clamping assembly 2. Both ends of the slide groove 102 are connected to mold grooves 101 that match the shape of the workpiece. The slide groove 102 and mold grooves 101 are formed on the mold base 1. The clamping assembly 2 is installed within the slide groove 102 and includes a driving block 201. The driving block 201 is movably installed within the slide groove 102, and both ends of the driving block 201 are provided with… A clamping block 202 is provided, which is slidably installed in the slide groove 102. Both ends of the drive block 201 are fixedly connected with inclined protrusions 2011. An inclined guide groove 2021 is provided on the side of the clamping block 202 near the drive block 201. The inclined protrusions 2011 are slidably installed in the inclined guide groove 2021. The drive block 201 is provided with a locking member that can press the drive block 201 onto the mold base 1. The mold base 1 is provided with a lifting component that can lift the drive block 201 upward when the clamping component 2 releases the workpiece.

[0034] By adopting the above technical solution, the workpieces to be processed are first placed into the mold grooves 101 on the mold base 1 that match the shape of the workpieces. The mold grooves 101 provide an initial positioning reference for the workpieces. When it is necessary to clamp the workpieces, the drive block 201 is pressed down, causing the drive block 201 to move downward in the slide groove 102. The inclined protrusions 2011 at both ends of the drive block 201 move downward synchronously. Since the inclined protrusions 2011 are slidably installed in the inclined guide grooves 2021 of the clamping block 202, the downward movement of the inclined protrusions 2011 is converted into the clamping block 202 moving along the slide groove 102 by the guiding effect of the inclined guide grooves 2021. The workpiece slides within the near mold groove 101 until the clamping block 202 abuts against the workpiece to complete the initial clamping. Subsequently, the locking element on the drive block 201 presses the drive block 201 against the mold base 1, keeping the drive block 201 in a downward state, thereby allowing the clamping block 202 to stably clamp the workpiece. When it is necessary to release the workpiece, the locking element is released, and the lifting component inside the mold base 1 lifts the drive block 201 upward. The drive block 201 drives the inclined protrusion 2011 to move upward. The inclined protrusion 2011 drives the clamping block 202 to slide along the slide groove 102 away from the workpiece through the inclined guide groove 2021, finally realizing the release of the workpiece.

[0035] In this embodiment, the locking component includes a locking bolt 203. The mold base 1 has a first threaded groove 103 that communicates with the slide groove 102. The drive block 201 has a first countersunk hole 2013. The lower end of the screw of the locking bolt 203 slides through the first countersunk hole 2013 and can be threadedly fixed in the first threaded groove 103.

[0036] By adopting the above technical solution, the lower end of the screw of the locking bolt 203 is aligned with the first countersunk hole 2013 on the drive block 201, and the lower end of the screw slides through the first countersunk hole 2013; then the locking bolt 203 is rotated so that the lower end of the screw forms a threaded engagement with the first threaded groove 103 on the mold base 1 that is connected to the slide groove 102 and is gradually tightened. As the locking bolt 203 is tightened, the head of the locking bolt 203 will gradually press against the locking surface of the first countersunk hole 2013, thereby stably pressing the drive block 201 in the slide groove 102 of the mold base 1, avoiding the drive block 201 from loosening and causing the clamping force of the clamping block 202 on the workpiece to decrease; when it is necessary to loosen the drive block 201, the locking bolt 203 is rotated in the opposite direction to loosen the locking bolt 203, thereby releasing the pressure restriction on the drive block 201. It should be noted that when loosening, it is not necessary to completely unscrew the locking bolt 203 from the first threaded groove 103.

[0037] In this embodiment, the lifting assembly includes insert rods 2012 fixed on both sides of the bottom of the drive block 201. The mold base 1 has insertion holes 104 corresponding to the insert rods 2012. The insertion holes 104 are connected to the slide groove 102. The mold base 1 has an inner cavity 106 connected to the insertion holes 104. The inner cavity 106 is provided with a movable block 3 and a spring 301. The movable block 3 can be lifted upward by the spring 301. The lower end of the insert rod 2012 can slide through the insertion hole 104 and press on the movable block 3.

[0038] By adopting the above technical solution, when the driving block 201 is pressed down, the insert rods 2012 on both sides of the bottom of the driving block 201 will move down synchronously with the driving block 201. The lower end of the insert rod 2012 will align with the corresponding insertion holes 104 on the mold base 1, and slide through the insertion holes 104 connected to the slide groove 102. Finally, the lower end of the insert rod 2012 will press against the movable block 3 in the inner cavity 106 of the mold base 1. As the driving block 201 continues to press down, the insert rod 2012 will push the movable block 3 to move downward in the inner cavity 106. The movable block 3 compresses the spring 301 at its bottom, causing the spring 301 to undergo elastic deformation and store elastic potential energy. When the locking device is released, the elastic potential energy stored in the spring 301 is released, pushing the movable block 3 upward. The movable block 3 pushes the insert rod 2012 upward, and the insert rod 2012 drives the drive block 201, which is fixedly connected to it, to move upward in the slide groove 102, thereby realizing the automatic reset of the drive block 201. This allows the clamping block 202 to automatically move away from the workpiece, avoiding scratches on the workpiece surface when manually pulling the workpiece upward.

[0039] In this embodiment, the bottom of the mold base 1 is provided with a second threaded groove 107 that communicates with the inner cavity 106. A headless screw 302 is fixedly installed in the inner thread of the second threaded groove 107. The bottom of the spring 301 presses against the top of the headless screw 302, and the top of the spring 301 abuts against the bottom of the movable block 3.

[0040] By adopting the above technical solution, when assembling the lifting assembly, the movable block 3 is first placed into the inner cavity 106, then the spring 301 is placed into the inner cavity 106, and finally the headless screw 302 is tightened into the second threaded groove 107, so as to realize the rapid assembly of the parts and facilitate the later inspection and maintenance of the parts in the inner cavity 106.

[0041] In this embodiment, the bottom of the mold base 1 is provided with a chip removal hole 105 that communicates with the mold groove 101, and the bottom of the mold base 1 is provided with a chip removal groove 1051 that communicates with the chip removal hole 105. The end of the chip removal groove 1051 away from the chip removal hole 105 extends to the edge of the mold base 1.

[0042] By adopting the above technical solution, when the workpiece in the mold groove 101 is milled, the metal chips generated may fall into the mold groove 101 after the machined workpiece is taken out of the mold groove 101. At this time, the chips in the mold groove 101 are blown into the chip discharge hole 105 by a blow gun. Since the end of the chip discharge groove 1051 away from the chip discharge hole 105 extends to the edge of the mold base 1, the chips collected in the chip discharge groove 1051 will move along the chip discharge groove 1051 to the edge of the mold base 1 and finally be discharged from the mold base 1. This avoids the accumulation of chips in the mold groove 101, which affects the workpiece clamping accuracy or machining quality, and at the same time facilitates the discharge of cutting fluid.

[0043] In this embodiment, the mold base 1 is provided with a plurality of second countersunk holes 108, and a fixing bolt 109 is provided in the second countersunk holes 108. The mold base 1 is fixed to the operating table of the milling machine by the fixing bolt 109.

[0044] By adopting the above technical solution, when installing the milling machine fixture, the mold base 1 is first placed on the operating table of the milling machine, so that the several second countersunk holes 108 on the mold base 1 are aligned with the preset mounting holes on the operating table of the milling machine; then the fixing bolts 109 are inserted into the second countersunk holes 108, so that the lower end of the screw of the fixing bolts 109 passes through the second countersunk holes 108 and is screwed into the mounting holes of the operating table of the milling machine; the fixing bolts 109 are gradually tightened so that the head of the fixing bolts 109 presses against the bottom of the second countersunk holes 108, thereby stably fixing the mold base 1 on the operating table of the milling machine, avoiding displacement of the fixture due to vibration during the processing, and ensuring the processing accuracy of the workpiece.

[0045] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A milling machine fixture, characterized in that, Includes a mold base (1), on which a plurality of clamping mechanisms for fixing workpieces are provided. The clamping mechanism includes a slide groove (102) and a clamping assembly (2). Both ends of the slide groove (102) are connected to a mold groove (101) that matches the shape of the workpiece. The slide groove (102) and the mold groove (101) are formed on the mold base (1). The clamping assembly (2) is installed in the slide groove (102). The clamping assembly (2) includes a driving block (201), which is movably installed in the slide groove (102). Clamping blocks (202) are provided at both ends of the driving block (201), and the clamping blocks (202) are slidably installed in the slide groove (102). Inclined protrusions (2011) are fixedly connected to both ends of the driving block (201). 02) An inclined guide groove (2021) is provided on one side near the drive block (201). The inclined protrusion (2011) is slidably installed in the inclined guide groove (2021). The drive block (201) is provided with a locking member that can press the drive block (201) onto the mold base (1). The mold base (1) is provided with a lifting component that can lift the drive block (201) upward when the clamping component (2) releases the workpiece.

2. The milling machine fixture according to claim 1, characterized in that: The locking component includes a locking bolt (203), the mold base (1) has a first threaded groove (103) that communicates with the slide groove (102), the drive block (201) has a first countersunk hole (2013), and the lower end of the screw of the locking bolt (203) slides through the first countersunk hole (2013) and can be threadedly fixed in the first threaded groove (103).

3. A milling machine fixture according to claim 2, characterized in that: The lifting assembly includes insert rods (2012) fixed on both sides of the bottom of the drive block (201). The mold base (1) has insertion holes (104) corresponding to the insert rods (2012). The insertion holes (104) are connected to the slide groove (102). The mold base (1) has an inner cavity (106) connected to the insertion holes (104). The inner cavity (106) is provided with a movable block (3) and a spring (301). The movable block (3) can be lifted upward by the spring (301). The lower end of the insert rod (2012) can slide through the insertion hole (104) and press on the movable block (3).

4. A milling machine fixture according to claim 3, characterized in that: The bottom of the mold base (1) is provided with a second threaded groove (107) that communicates with the inner cavity (106). A headless screw (302) is fixedly installed in the second threaded groove (107). The bottom of the spring (301) presses against the top of the headless screw (302), and the top of the spring (301) abuts against the bottom of the movable block (3).

5. A milling machine fixture according to claim 1, characterized in that: The bottom of the mold base (1) is provided with a chip removal hole (105) communicating with the mold groove (101), and the bottom of the mold base (1) is provided with a chip removal groove (1051) communicating with the chip removal hole (105). The end of the chip removal groove (1051) away from the chip removal hole (105) extends to the edge of the mold base (1).

6. A milling machine fixture according to any one of claims 1-5, characterized in that: The mold base (1) has several second countersunk holes (108), and a fixing bolt (109) is provided in the second countersunk hole (108). The mold base (1) is fixed to the operating table of the milling machine by the fixing bolt (109).

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