Pressing device for numerical control end milling

Abstract

The utility model discloses a material pressing device for numerical control end milling, and belongs to the technical field of numerical control end milling assemblies. Comprising a machine body, a positioning block, two nylon blocks, two movable bottom plates, two sets of upper pressing assemblies and two sets of side pressing assemblies, and the positioning block is arranged in the middle of the top face of the machine body; the nylon blocks are arranged on the two sides of the positioning block; a plurality of first long-strip-shaped counter bores are formed in the nylon block in the height direction, and bolts fixed to the positioning block are arranged in the long-strip-shaped counter bores. The movable bottom plates are arranged on the two sides of the positioning block and below the nylon block; second long-strip-shaped counter bores are formed in the two sides of the movable bottom plate, and bolts fixed to the top face of the machine body are arranged in the second long-strip-shaped counter bores. According to the material pressing device of the numerical control end mill, the positions of the upper material pressing end and the side material pressing end can be adjusted according to material pressing requirements, accurate material pressing and positioning of sectional materials are achieved, and the requirements of the sectional materials of different lengths and different shapes are met.

Description

Technical Field

[0001] The utility model specifically relates to a material pressing device for a numerically controlled end milling machine, and belongs to the technical field of numerically controlled end milling components. Background Art

[0002] End milling refers to a processing method in which an end milling cutter is used to mill the surface of a workpiece. During end milling, the main cutting edges distributed on the cylindrical or conical surface perform the cutting function. For example, the Chinese patent authorization announcement number: CN220560509U discloses a CNC end milling machine tool, which solves the problem that the existing CNC end milling machine tools are not convenient for fixing parts during the processing of parts, and the parts may shake during the processing, through the coordinated use of a base plate, a controller, a clamping assembly, an electric telescopic rod, a support block, a first tooth plate, a gear, a rotating rod, a second tooth plate, a connecting block, a clamping plate, a driving assembly, a motor, a screw rod, a fixing block, a connecting plate and a milling device. movement, thereby affecting the processing efficiency; when the above-mentioned CNC end milling machine is processing, the clamping assembly and the clamping plate cannot adapt to different types of processing; for example, the Chinese patent authorization announcement number: CN219131588U discloses an electric end milling machine workpiece positioning device, including a processing table, the upper end surface of the processing table is equipped with a positioning table, and the lower end surface of the positioning table is symmetrically equipped with a locking frame engaged with the processing table. The positioning device stably clamps the workpiece, which is convenient for clamping and fixing workpieces of different heights, and is convenient for installation and disassembly as a whole. However, the positioning end of the structure cannot be adjusted quickly and cannot adapt to the clamping of profiles of different lengths or special-shaped profiles. Utility Model Content

[0003] To solve the above problems, the utility model proposes a pressing device for CNC end milling, which can adjust the positions of the upper pressing end and the side pressing end according to the pressing requirements, thereby achieving accurate pressing positioning of the profile to meet the needs of profiles of different lengths and shapes.

[0004] The material pressing device of the CNC end milling of the utility model comprises:

[0005] Body;

[0006] A positioning block, the positioning block is arranged in the middle of the top surface of the machine body;

[0007] Two nylon blocks, the nylon blocks are arranged on both sides of the positioning block; a plurality of first long countersunk holes are opened on the nylon blocks in the height direction, and bolts fixed to the positioning block are arranged in the long countersunk holes;

[0008] Two movable bottom plates, the movable bottom plates are arranged on both sides of the positioning block and below the nylon block; second long countersunk holes are opened on both sides of the movable bottom plates, and bolts fixed to the top surface of the machine body are arranged in the second long countersunk holes;

[0009] Two sets of upper clamping assemblies, the upper clamping assemblies include a cylinder support slidably arranged on the top surface of the positioning block, the cylinder support and the positioning block are fastened by bolts, a first clamping cylinder is fixed on the cylinder support, and an upper clamping plate is fixed on the bottom of the first clamping cylinder;

[0010] Two groups of side pressure assemblies, the two groups of side pressure assemblies are arranged on both sides of the machine body; the side pressure assembly includes two clamping seats, the clamping seat includes a clamping body, and a long slide is opened at the lower part of the clamping body; a cylinder clamping groove is arranged at the upper part of the clamping body; a locking hole is integrally formed at the top of the cylinder clamping groove, a second clamping cylinder is clamped in the cylinder clamping groove, a first locking handle passes through the locking hole and is locked by a nut; a second locking handle passes through the long slide and is screwed to the machine body; a pressure plate that fits the outside of the clamping body is integrally formed on the second locking handle, and the second clamping cylinder is engaged in the cylinder clamping groove. A pressure head is fixed at the telescopic end of the cylinder; the pressure head can be adjusted in the horizontal and vertical directions, so that the pressure head can accurately tighten the profile at the position to be tightened; when adjusting, the second clamping cylinder and the clamp body are clamped through the first locking handle, so that the second clamping cylinder and the clamp seat are fastened as one; when the position of the pressure head needs to be adjusted, the second locking handle is loosened, and the long slide of the clamp body is made to slide along the second locking handle, and the clamp body is swung along the second locking handle, so as to adjust the pressure head in the horizontal and vertical directions. After the adjustment is completed, the clamp seat is fastened to the machine body through the second locking handle.

[0011] The material pressing device of the CNC end milling of the utility model, when the profile is pressed and positioned, the first pressing cylinder drives the upper pressing plate to press downward, and the second pressing cylinder drives the pressing head to push outward; the profile can be pressed on the top surface and the side surface, and the positioning block serves as a positioning unit for the side surface and the top surface; a nylon block is installed on the side of the positioning block, and when the profile is pressed on the side surface, the profile can be prevented from being damaged; and a first long countersunk hole is provided on the nylon block, so that the nylon block can be adjusted up and down along the positioning block, so that the nylon block is convenient for positioning and clamping the height of the side surface of the profile of various shapes; the pressing head can press the profile;

[0012] The two sets of upper clamping assemblies can slide along the positioning blocks, so as to adapt to profiles of different lengths. By adjusting the relative position between the two sets of upper clamping assemblies, the clamping points of the profiles can be met; two sets of upper clamping assemblies are used to achieve two-point clamping on the top of the profiles; precise pressing of the profiles can be achieved; jitter and resonance generated during the processing of short and thin profiles, which affect the end milling accuracy; in addition, the two movable bottom plates can slide and adjust along the machine body, so that the movable bottom plates can move back and forth, which can meet the processing of profiles of different lengths, and the processing is more stable and not prone to jitter.

[0013] Furthermore, a rubber plate is fixed to the bottom of the upper clamping plate; a non-slip rubber pad is fixed to the outer end of the pressure head; the rubber plate and the non-slip rubber pad can be used to clamp the profile and have an anti-slip effect, which is conducive to the firm clamping processing of the profile.

[0014] Furthermore, a manual screw slide is arranged between the machine body and the positioning block, the manual screw slide is fixed to the top surface of the machine body, and the positioning block is fixed to the sliding end of the manual screw slide; the two groups of upper clamping assemblies can slide along the positioning block to realize the relative position adjustment between the two groups of upper clamping assemblies. After adjustment and fixation, secondary adjustment can be carried out through the manual screw slide to meet the synchronous adjustment of the positions of the two groups of upper clamping assemblies.

[0015] Furthermore, the side of the clamp body is integrally formed with a first hinged ear, the side of the body is fixed to the second hinged ear, a telescopic rod is hinged between the first hinged ear and the second hinged ear, the telescopic rod includes an outer tube and an inner rack that are movably engaged; a locking bolt is screwed on the outer tube, and the locking bolt is engaged with the inner rack; the telescopic rod is supported between the clamp body and the body to achieve secondary locking of the clamp body position; when the position of the clamp body needs to be adjusted, the position of the clamp body is adjusted first, and when the position of the clamp body is locked, it can be engaged with the inner rack through the locking bolt to achieve length limitation of the telescopic rod.

[0016] Furthermore, the cylinder support and the positioning block are mutually embedded dovetail structures or convex structures.

[0017] Furthermore, the positioning block is provided with two long through holes, and the cylinder support is passed through two bolts, the bolts movably pass through the long through holes and are screwed with locking nuts, and the locking nuts are pressed tightly against the bottom of the long through holes.

[0018] Compared with the prior art, the pressing device of the CNC end milling of the utility model can adjust the positions of the upper pressing end and the side pressing end according to the pressing requirements, so as to realize accurate pressing positioning of the profile and meet the requirements of profiles of different lengths and shapes; it is convenient for pressing and fixing ordinary profiles and special profiles, and can prevent the jitter and resonance generated during the processing of short profiles and thin profiles. The clamping operation is convenient, safe and reliable, and has a wide range of uses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the front side of the material pressing device of the utility model.

[0020] Figure 2 It is a schematic diagram of the overall structure of the material pressing device of the utility model from the side.

[0021] Figure 3 This is a schematic diagram of the overall structure of the positioning block of the utility model.

[0022] Figure 4 This is a schematic diagram of the overall structure of the nylon block of the utility model.

[0023] Figure 5 It is a schematic diagram of the overall structure of the movable bottom plate of the utility model.

[0024] Figure 6 It is a schematic diagram of the overall structure of the clamp body of the utility model.

[0025] Figure 7 It is a schematic diagram of the installation structure of the material pressing device and the manual screw slide of the utility model.

[0026] Figure 8 It is a schematic diagram of the installation structure of the material pressing device and the telescopic rod of the utility model.

[0027] Fig. 9 It is a structural schematic diagram of another embodiment of the positioning block of the utility model.

[0028] Figure numerals: 1, machine body, 2, positioning block, 3, nylon block, 4, first long countersunk hole, 5, movable bottom plate, 6, second long countersunk hole, 7, cylinder support, 8, first clamping cylinder, 9, upper clamping plate, 10, clamping body, 11, long slide, 12, cylinder clamping groove, 13, locking hole, 14, second clamping cylinder, 15, first locking handle, 16, second locking handle, 17, pressure plate, 18, pressure head, 19, rubber plate, 20, non-slip rubber pad, 21, manual screw slide, 22, first hinged ear, 23, second hinged ear, 24, outer cylinder, 25, inner rack, 26, locking bolt. DETAILED DESCRIPTION

[0029] Example:

[0030] like Figures 1 to 6 The pressing device of the CNC end mill shown comprises:

[0031] Body 1;

[0032] A positioning block 2, wherein the positioning block 2 is arranged in the middle of the top surface of the body 1;

[0033] Two nylon blocks 3, the nylon blocks 3 are arranged on both sides of the positioning block 2; a plurality of first long countersunk holes 4 are opened on the nylon blocks 3 along the height direction, and bolts fixed to the positioning block 2 are arranged in the long countersunk holes;

[0034] Two movable bottom plates 5, the movable bottom plates 5 are arranged on both sides of the positioning block 2 and below the nylon block 3; second long countersunk holes 6 are opened on both sides of the movable bottom plates 5, and bolts fixed to the top surface of the machine body 1 are arranged in the second long countersunk holes 6;

[0035] Two sets of upper clamping assemblies, the upper clamping assemblies include a cylinder support 7 slidably arranged on the top surface of the positioning block 2, the cylinder support 7 and the positioning block 2 are fastened by bolts, a first clamping cylinder 8 is fixed on the cylinder support 7, and an upper clamping plate 9 is fixed at the bottom of the first clamping cylinder 8;

[0036] Two groups of side pressure components, the two groups of side pressure components are arranged on both sides of the body 1; the side pressure components include two clamping seats, the clamping seats include a clamping body 10, and a long slide 11 is opened at the lower part of the clamping body 10; a cylinder clamping groove 12 is arranged on the upper part of the clamping body 10; a locking hole 13 is integrally formed at the top of the cylinder clamping groove 12, and a second clamping cylinder 14 is clamped in the cylinder clamping groove 12, and a first locking handle 15 passes through the locking hole 13 and is locked by a nut; a second locking handle 16 passes through the long slide 11 and is tightened with the body 1; a pressure plate 17 that fits the outside of the clamping body 10 is integrally formed on the second locking handle 16, and the second clamping cylinder 14 is clamped in the cylinder clamping groove 12, and a first locking handle 15 passes through the locking hole 13 and is locked by a nut; a second locking handle 16 passes through the long slide 11 and is tightened with the body 1; a pressure plate 17 that fits the outside of the clamping body 10 is integrally formed on the second locking handle 16, and the second A pressure head 18 is fixed to the telescopic end of the cylinder 14; the pressure head 18 can be adjusted in the horizontal and vertical directions, so that the pressure head 18 can accurately tighten the profile to be tightened at the position; during adjustment, the second clamping cylinder 14 and the clamp body 10 are clamped through the first locking handle 15, so that the second clamping cylinder 14 and the clamp seat are fastened as one; when the position of the pressure head 18 needs to be adjusted, the second locking handle 16 is loosened, and the long slide 11 of the clamp body 10 is made to slide along the second locking handle 16, and the clamp body 10 is swung along the second locking handle 16, so as to adjust the pressure head 18 in the horizontal and vertical directions. After the adjustment is completed, the clamp seat is fastened to the machine body 1 through the second locking handle 16.

[0037] The material pressing device of the CNC end milling of the utility model, when the profile is pressed and positioned, the first pressing cylinder 8 drives the upper pressing plate 9 to press down, and the second pressing cylinder 14 drives the pressing head 18 to push outward; the profile can be pressed on the top surface and the side surface, and the positioning block 2 serves as a positioning unit for the side surface and the top surface; the nylon block 3 is installed on the side of the positioning block 2, when the profile is pressed on the side, it can prevent the profile from being damaged; and the first long countersunk hole 4 is provided on the nylon block 3, so that the nylon block 3 can be adjusted up and down along the positioning block 2, so that the nylon block 3 is convenient for positioning and clamping the height of the side surface of the profile of various shapes; the pressing head 18 is realized to press the profile;

[0038] The two sets of upper clamping assemblies can slide along the positioning block 2, so as to adapt to profiles of different lengths. By adjusting the relative position between the two sets of upper clamping assemblies, the clamping points of the profiles can be met; two sets of upper clamping assemblies are used to achieve two-point clamping on the top of the profiles; accurate pressing of the profiles can be achieved; jitter and resonance generated during the processing of short and thin profiles are prevented, which affects the end milling accuracy; in addition, the two movable bottom plates 5 can be slid and adjusted along the body 1, so that the movable bottom plates 5 can move back and forth, which can meet the processing of profiles of different lengths, and the processing is more stable and not prone to jitter.

[0039] A rubber plate 19 is fixed to the bottom of the upper clamping plate 9; a non-slip rubber pad 20 is fixed to the outer end of the pressure head 18; the rubber plate 19 and the non-slip rubber pad 20 can be used to clamp the profile and have an anti-slip effect, which is conducive to the firm clamping processing of the profile.

[0040] like Figure 7 As shown, a manual screw slide 21 is arranged between the machine body 1 and the positioning block 2, and the manual screw slide 21 is fixed to the top surface of the machine body 1, and the positioning block 2 is fixed to the sliding end of the manual screw slide 21; the two groups of upper clamping assemblies can slide along the positioning block 2 to realize the relative position adjustment between the two groups of upper clamping assemblies. After adjustment and fixation, secondary adjustment can be performed through the manual screw slide 21 to meet the synchronous adjustment of the positions of the two groups of upper clamping assemblies.

[0041] like Figure 8 As shown, the side of the clamp body 10 is integrally formed with a first hinged ear 22, and the side of the body 1 is fixed to the second hinged ear 23. A telescopic rod is hinged between the first hinged ear 22 and the second hinged ear 23, and the telescopic rod includes an outer cylinder 24 and an inner rack 25 that are movably engaged; a locking bolt 26 is screwed on the outer cylinder 24, and the locking bolt 26 is engaged with the inner rack 25; the telescopic rod is supported between the clamp body 10 and the body 1, so as to realize secondary locking of the position of the clamp body 10; when the position of the clamp body 10 needs to be adjusted, the position of the clamp body 10 is adjusted first, and when the position of the clamp body 10 is locked, the locking bolt 26 can be engaged with the inner rack 25 to realize the length limitation of the telescopic rod.

[0042] like Figure 3 As shown, the cylinder support 7 and the positioning block 2 are mutually embedded dovetail structures or convex structures.

[0043] like Fig. 9 As shown, in another embodiment, two long through holes are opened on the positioning block 2, and two bolts pass through the cylinder support 7. The bolts movably pass through the long through holes and are screwed with locking nuts. The locking nuts are pressed tightly against the bottom of the long through holes.

[0044] The above embodiments are only preferred implementations of the present invention, so any equivalent changes or modifications made according to the structures, features and principles described in the scope of application of the present invention are included in the scope of application of the present invention.

Claims

1. A material holding device for CNC end milling, characterized in that: include: Body; A positioning block, the positioning block is arranged in the middle of the top surface of the machine body; Two nylon blocks, the nylon blocks are arranged on both sides of the positioning block; a plurality of first long countersunk holes are opened on the nylon blocks in the height direction, and bolts fixed to the positioning block are arranged in the long countersunk holes; Two movable bottom plates, the movable bottom plates are arranged on both sides of the positioning block and below the nylon block; second long countersunk holes are opened on both sides of the movable bottom plates, and bolts fixed to the top surface of the machine body are arranged in the second long countersunk holes; Two sets of upper clamping assemblies, the upper clamping assemblies include a cylinder support slidably arranged on the top surface of the positioning block, the cylinder support and the positioning block are fastened by bolts, a first clamping cylinder is fixed on the cylinder support, and an upper clamping plate is fixed on the bottom of the first clamping cylinder; Two groups of side pressure assemblies, the two groups of side pressure assemblies are arranged on both sides of the machine body; the side pressure assembly includes two clamping seats, the clamping seat includes a clamping body, and a long slide is opened at the lower part of the clamping body; a cylinder clamping groove is arranged at the upper part of the clamping body; a locking hole is integrally formed at the top of the cylinder clamping groove, a second clamping cylinder is engaged in the cylinder clamping groove, a first locking handle passes through the locking hole and is locked by a nut; the second locking handle passes through the long slide and is tightened to the machine body; the second locking handle is integrally formed with a pressure plate that fits with the outside of the clamping body, and a pressure head is fixed to the telescopic end of the second clamping cylinder.

2. The material holding device for CNC end milling according to claim 1 is characterized in that: A rubber plate is fixed on the bottom of the upper pressing plate; and a non-slip rubber pad is fixed on the outer end of the pressing head.

3. The material holding device for CNC end milling according to claim 1 is characterized in that: A manual screw slide is arranged between the machine body and the positioning block. The manual screw slide is fixed to the top surface of the machine body, and the positioning block is fixed to the sliding end of the manual screw slide.

4. The material holding device for CNC end milling according to claim 1 is characterized in that: The side of the clamp body is integrally formed with a first hinged ear, the side of the body is fixed to the second hinged ear, a telescopic rod is hinged between the first hinged ear and the second hinged ear, the telescopic rod includes an outer tube and an inner rack that are movably engaged; a locking bolt is screwed on the outer tube, and the locking bolt is engaged with the inner rack.

5. The material holding device for CNC end milling according to claim 1 is characterized in that: The cylinder support and the positioning block are mutually embedded dovetail-shaped structures or convex-shaped structures.

6. The material holding device for CNC end milling according to claim 1 is characterized in that: The positioning block is provided with two long through holes, and the cylinder support is passed through two bolts. The bolts movably pass through the long through holes and are screwed with locking nuts, and the locking nuts are pressed tightly against the bottom of the long through holes.

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