A milling and turning tool

Abstract

The utility model relates to tool fixture technical field discloses a kind of milling tool, including: support platform;Clamping assembly, clamping assembly includes guide rail, at least one pair of clamping block and at least one pair of wedge;A pair of sliding base is slidably connected on guide rail;The clamping gap between the sliding base bottom surface and support platform is formed;Each clamping block is fixedly installed on each sliding base, for clamping workpiece;The opposite inner side of a pair of clamping block is respectively equipped with positioning column, for positioning workpiece;Each wedge is slidably inserted into clamping gap, to limit the displacement of clamping block and maintain the clamping state of clamping block to workpiece;Two-way drive assembly is connected with a pair of wedge respectively, for driving a pair of wedge to move towards or away from each other.The utility model improves the precision of clamping workpiece by the cooperation of guide rail and clamping block and the setting of positioning column;Work efficiency is improved by two-way drive assembly driving clamping block to move;By setting wedge, the damage to power device such as two-way drive assembly is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and more specifically, to a milling machine tooling. Background Technology

[0002] In the field of mechanical manufacturing, milling and turning are the most common machining methods. During these machining operations, the workpiece must be reliably clamped and fixed to the fixture or worktable to prevent workpiece displacement or vibration from affecting machining accuracy, or even damaging the tool or workpiece. Currently, common clamping methods often employ manual bolt clamping plates, vises, or single-cylinder driven clamping blocks.

[0003] The existing clamping methods have the following drawbacks: 1) Low automation and low efficiency. Manual clamping methods (such as bolt clamps) rely entirely on the operator's strength and experience, resulting in long clamping times and becoming a bottleneck for improving overall processing efficiency; 2) Limited positioning accuracy. Traditional clamping methods often only provide clamping force and lack precise positioning capabilities. Workpieces are prone to slippage or displacement during clamping, requiring additional alignment steps, demanding high operator skills, and making it difficult to guarantee consistent part positioning in mass production; 3) Insufficient clamping reliability. Under continuous heavy cutting forces or vibrations, relying solely on the thrust of the drive assembly to maintain the clamping state may pose risks. Once the drive source (such as a cylinder) loses pressure or there is a gap in the transmission mechanism, the clamping force may decrease, causing the workpiece to loosen and resulting in processing accidents. Utility Model Content

[0004] To address at least one of the aforementioned problems, this utility model first provides a milling machine fixture, comprising: a support table; a clamping assembly, the clamping assembly including a guide rail, at least one pair of clamping blocks, and at least one pair of wedges; wherein the guide rail is fixedly mounted on the support table; a pair of slide blocks are slidably connected to the guide rail; a clamping gap is formed between the bottom surface of the slide blocks and the support table; wherein each clamping block is fixedly mounted on each of the slide blocks for clamping a workpiece; a positioning post is provided on the opposite inner surface of each pair of clamping blocks; a positioning hole is provided on the workpiece and the positioning hole cooperates with the positioning post for positioning the workpiece; wherein each wedge is slidably inserted into the clamping gap to limit the displacement of the clamping block and maintain the clamping state of the clamping block on the workpiece; and a bidirectional drive assembly, which is connected to each pair of wedges for driving the pair of wedges to move towards or away from each other, so that the wedges clamp or release the clamping blocks.

[0005] Optionally, a mounting post is provided on the opposite inner side of the pair of clamping blocks; an elastic reset member is connected between the pair of mounting posts, and the two ends of the elastic reset member abut against the clamping blocks respectively.

[0006] Optionally, the bidirectional drive assembly includes a servo motor and a transmission screw fixedly connected to the output end of the servo motor; the transmission screw is respectively provided with a forward thread and a reverse thread; each of the forward thread and the reverse thread is threaded to a slide, and the servo motor is configured to drive the two slides to move towards each other or away from each other.

[0007] Optionally, a guide rod is fixed on each side of the transmission screw; the guide rods are slidably engaged with the two slides respectively.

[0008] Optionally, each of the pair of slides is provided with at least one push plate; the two push plates abut against the outer side of each of the clamping blocks, so that the servo motor drives the two slides to push the pair of clamping blocks to move towards each other to clamp the workpiece or to move away from each other to release the workpiece.

[0009] Optionally, the clamping assembly has two pairs symmetrically distributed on both sides of the bidirectional drive assembly; the bidirectional drive assembly is configured to drive the two slides to push the two pairs of clamping blocks to move towards each other to clamp the workpiece or to move away from each other to release the workpiece.

[0010] Optionally, a plurality of connecting brackets are fixedly connected to both push plates; a stop block is provided at the tail end of the connecting bracket; the stop block contacts and engages with the rear side of the wedge block to push the wedge block to move or restrict the wedge block from retracting.

[0011] Optionally, the wedge has two protrusions extending along its length; a guide groove is formed between the two protrusions to slide with the guide rail; a limiting inclined surface is provided on the upper surface of each protrusion; the limiting inclined surface is inserted into the clamping gap on both sides below the slide block.

[0012] Optionally, the milling machine tooling further includes an auxiliary support platform; the auxiliary support platform has a pair and is located on both sides of the clamping block respectively; the outer edge of the top of the auxiliary support platform has a flange for restricting the workpiece from moving to both sides; the auxiliary support platform has a clearance groove in the middle.

[0013] Optionally, a lifting platform is also provided on the outside of the auxiliary support platform for lifting the workpiece; the support platform is connected to the drive end of a driving device.

[0014] Compared with the prior art, this utility model improves the workpiece clamping accuracy through the cooperation of the guide rail and the clamping block and the setting of the positioning column; improves the working efficiency by driving the clamping block to move through the bidirectional drive assembly; and reduces the damage to the power device such as the bidirectional drive assembly by setting the wedge block. Attached Figure Description

[0015] Figure 1This is an overall structural diagram of the milling and turning tooling in this utility model;

[0016] Figure 2 for Figure 1 The front view;

[0017] Figure 3 for Figure 1 Top view;

[0018] Figure 4 This is a schematic diagram of the clamping component in this utility model;

[0019] Figure 5 This is a schematic diagram of the bottom structure of the clamping component in this utility model;

[0020] Figure 6 for Figure 4 The front view;

[0021] Figure 7 for Figure 4 The left view.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Support platform; 2-Guide rail; 3-Clamping block; 4-Wedge block; 5-Bidirectional drive assembly; 6-Push plate; 7-Connecting bracket; 8-Auxiliary support platform; 9-Lifting platform; 201-Slide; 301-Positioning column; 302-Elastic reset component; 401-Guide groove; 402-Limiting inclined surface; 403-Protrusion; 501-Servo motor; 502-Transmission screw; 503-Forward thread; 504-Reverse thread; 505-Slide; 506-Guide rod; 701-Stop block; 801-Flange; 802-Allowing groove. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0026] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0027] This utility model provides a milling turning fixture, please refer to [link / reference]. Figure 1As shown, it includes: a support platform 1; a clamping assembly, which includes a guide rail 2, at least one pair of clamping blocks 3, and at least one pair of wedges 4; wherein the guide rail 2 is fixedly installed on the support platform 1; a pair of slide seats 201 are slidably connected to the guide rail 2; a clamping gap is formed between the bottom surface of the slide seats 201 and the support platform 1; wherein each clamping block 3 is fixedly installed on each slide seat 201 for clamping the workpiece; the opposite inner surfaces of the pair of clamping blocks 3 are respectively provided with positioning posts 301; the workpiece is provided with positioning holes and the positioning holes cooperate with the positioning posts 301 for positioning the workpiece; wherein each wedge 4 is slidably inserted into the clamping gap to limit the displacement of the clamping block 3 and maintain the clamping state of the clamping block 3 on the workpiece; a bidirectional drive assembly 5, which is respectively connected to the pair of wedges 4 for driving the pair of wedges 4 to move towards or away from each other, so that the wedges 4 clamp or release the clamping blocks 3; the bidirectional drive assembly 5 also cooperates with the pair of clamping blocks 3 to drive the pair of clamping blocks 3 to move closer to each other and clamp the workpiece.

[0028] A pair of clamping blocks 3 are provided with mounting posts on their opposite inner sides; an elastic reset member 302 is connected between the pair of mounting posts, and the two ends of the elastic reset member 302 abut against the clamping blocks 3 respectively. Here, the elastic reset member 302 can be a helical spring, and the two ends of the helical spring are tightly fitted on the mounting posts, making it difficult to loosen; when the bidirectional drive assembly 5 drives the pair of clamping blocks 3 to approach each other, the elastic action of the helical spring makes the clamping blocks 3 relatively fixed, thus clamping the workpiece.

[0029] In one embodiment, such as Figure 1 and 4 As shown, the bidirectional drive assembly 5 includes a servo motor 501 and a lead screw 502 fixedly connected to the output end of the servo motor 501. The lead screw 502 has a forward thread 503 and a reverse thread 504. Each of the forward thread 503 and the reverse thread 504 engages with a slide 505. The two slides 505 have threaded structures that engage with the forward thread 503 and the reverse thread 504, respectively, so that when the servo motor 501 operates, it drives the lead screw 502 to rotate forward and reverse, thereby driving the two slides 505 to move towards or away from each other. The servo motor 501 is configured to drive the two slides 505 to move towards or away from each other. A guide rod 506 is fixed to each side of the lead screw 502. The guide rods 506 slide in contact with the two slides 505, providing auxiliary guidance for the movement of the slides 505. A housing is also provided above the bidirectional drive assembly 5 to prevent machining debris from entering the bidirectional drive assembly 5 and affecting its operation.

[0030] In one embodiment, such as Figure 4As shown, each of the two slides 505 is provided with at least one push plate 6; the two push plates 6 respectively abut against the outer side of each clamping block 3, so that the servo motor 501 drives the two slides 505 to push the pair of clamping blocks 3 to move towards each other to clamp the workpiece or move away from each other to release the workpiece; due to the elastic effect of the elastic reset member 302, the pair of clamping blocks 3 have a tendency to move away from each other, and the push plate 6 abuts against the clamping block 3 to fix the clamping block 3; the specific working process is as follows: when the servo motor 501 drives the pair of slides 505 to move towards each other, the push plate 6 of the slide 505 abuts against the clamping block 3, thereby driving the pair of clamping blocks 3 to move towards each other to clamp the workpiece. When the servo motor 501 stops, the position of the slide 505 is fixed, thereby restricting the clamping block 3 through the push plate 6. Due to the elastic effect of the elastic reset member 302, the other end of the clamping block 3 is fixed, and the workpiece can then be processed by milling and other machining operations.

[0031] In one embodiment, such as Figure 4-5 As shown, the clamping components are provided in two pairs and symmetrically distributed on both sides of the bidirectional drive component 5. Since there is an additional clamping component, including an additional pair of positioning pins 301, the positioning of the workpiece is more accurate and less prone to displacement. In actual operation, this device can be used to fix the rocker arm, such as the rocker arm on a bulldozer. It is often necessary to machine a large hole in the center and a small hole on each side of the rocker arm. The position of the large hole is usually located between the two pairs of clamping components. After the two pairs of clamping components have stabilized the workpiece, milling and other operations can be performed. The bidirectional drive component 5 is configured to drive the two slides 505 to push the two pairs of clamping blocks 3 to move towards each other to clamp the workpiece or to move away from each other to release the workpiece.

[0032] In one embodiment, such as Figure 4-6 As shown, several connecting brackets 7 are fixedly connected to both push plates 6; a stop block 701 is provided at the tail end of the connecting bracket 7; the stop block 701 contacts and cooperates with the rear side of the wedge block 4, and is used to push the wedge block 4 to move or restrict the wedge block 4 to retract; here, the main purpose is to allow the servo motor 501 to drive the wedge block 4 and the clamping block 3 to move synchronously together, thereby reducing the driving equipment. However, it should be noted that the wedge block 4 should maintain a certain distance from the clamping block 3 so that the wedge block 4 will not directly jam the clamping block 3 and be unable to move. When the servo motor 501 drives the clamping block 3 to move to the required position, the wedge block 4 can be pushed forward to abut against the clamping block 3 by manual means or by the driving device, thereby fixing the workpiece. At this time, there is a certain distance between the push plate 6 and the clamping block 3, so when processing the workpiece, the pressure on the workpiece will not be transmitted to the servo motor 501 and cause damage.

[0033] In one embodiment, such as Figure 1 , 4As shown, the wedge 4 has two protrusions 403 extending along its length; a guide groove 401 is formed between the two protrusions 403 to slide with the guide rail 2; each protrusion 403 has a limiting inclined surface 402 on its upper surface; the limiting inclined surface 402 is inserted into the clamping gaps on both sides below the slide block 201, thereby clamping the slide block 201, that is, clamping the clamping block 3, so as to facilitate clamping the workpiece.

[0034] In one embodiment, such as Figure 1-3 As shown, the milling machine tooling also includes an auxiliary support platform 8; the auxiliary support platform 8 has a pair and is located on both sides of the clamping block 3; the outer edge of the top of the auxiliary support platform 8 has a flange 801 for restricting the workpiece from moving to both sides, mainly restricting the two ends of the workpiece from moving during processing; the auxiliary support platform 8 has a relief groove 802 in the middle for accommodating the downward protruding part of the workpiece.

[0035] In one embodiment, such as Figure 1-3 As shown, an auxiliary support platform 8 is also equipped with a lifting platform 9 on its outer side for lifting the workpiece, facilitating its removal after processing. The positioning column 301 can be designed as an automatic telescopic type, for example, fixed to the telescopic end of a pneumatic or hydraulic cylinder, thereby achieving telescopic movement and facilitating the release of the workpiece after processing, thus making it easier for the lifting platform 9 to lift and remove the workpiece subsequently. Alternatively, it can be designed as follows: Figure 1 The positioning pin 301 is inserted into the clamping block 3 as shown. After machining, the positioning pin 301 can be directly pulled out. Alternatively, the positioning pin 301 can be passed through the clamping block 3 and threaded into the clamping block 3, which also makes it easy to remove the positioning pin 301. This method is more stable and the positioning pin 301 is not easy to loosen. The support platform 1 is connected to the drive end of a drive device, which is not shown in the figure. The drive device is a cylinder, hydraulic cylinder, etc. The cylinder or hydraulic cylinder drives the entire device, including the workpiece, to move, thereby facilitating more specific turning and other operations on the workpiece.

[0036] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A milling machine tool, characterized in that, include: Support platform (1); A clamping assembly, the clamping assembly including a guide rail (2), at least a pair of clamping blocks (3) and at least a pair of wedges (4); The guide rail (2) is fixedly installed on the support platform (1); a pair of slide blocks (201) are slidably connected on the guide rail (2); a clamping gap is formed between the bottom surface of the slide block (201) and the support platform (1); Each of the clamping blocks (3) is fixedly installed on each of the slide blocks (201) for clamping the workpiece; each of the pair of clamping blocks (3) has a positioning post (301) on its opposite inner side for positioning the workpiece. Each of the wedges (4) is slidably inserted into the clamping gap to limit the displacement of the clamping block (3) and maintain the clamping state of the clamping block (3) on the workpiece; A bidirectional drive assembly (5) is connected to a pair of wedges (4) respectively, for driving the pair of wedges (4) to move towards or away from each other, so that the wedges (4) clamp or release the clamping block (3).

2. The milling machine tooling according to claim 1, characterized in that, The pair of clamping blocks (3) are provided with mounting posts on their opposite inner sides; an elastic reset member (302) is connected between the pair of mounting posts, and the two ends of the elastic reset member (302) abut against the clamping blocks (3) respectively.

3. The milling machine tooling according to claim 1, characterized in that, The bidirectional drive assembly (5) includes a servo motor (501) and a transmission screw (502) fixedly connected to the output end of the servo motor (501); the transmission screw (502) is provided with a forward thread (503) and a reverse thread (504); each of the forward thread (503) and the reverse thread (504) is threaded to a slide (505), and the servo motor (501) is configured to drive the two slides (505) to move towards each other or away from each other.

4. A milling machine tooling according to claim 3, characterized in that, A guide rod (506) is fixed on each side of the transmission screw (502); the guide rod (506) is slidably engaged with the two slides (505).

5. A milling machine tooling according to claim 3, characterized in that, Each of the two slides (505) is provided with at least one push plate (6); the two push plates (6) respectively abut against the outer side of each clamping block (3) so that the servo motor (501) drives the two slides (505) to push the pair of clamping blocks (3) to move towards each other to clamp the workpiece or move away from each other to release the workpiece.

6. A milling machine tooling according to claim 5, characterized in that, The clamping assembly has two pairs and is symmetrically distributed on both sides of the bidirectional drive assembly (5); the bidirectional drive assembly (5) is configured to drive the two slides (505) to push the two pairs of clamping blocks (3) to move towards each other to clamp the workpiece or to move away from each other to release the workpiece.

7. A milling machine tooling according to claim 5, characterized in that, Several connecting brackets (7) are fixedly connected to both push plates (6); a stop block (701) is provided at the tail end of the connecting bracket (7); the stop block (701) contacts and cooperates with the rear side of the wedge (4) to push the wedge (4) to move or restrict the wedge (4) from retracting.

8. A milling machine tooling according to claim 7, characterized in that, The wedge (4) has two protrusions (403) extending along its length; a guide groove (401) is formed between the two protrusions (403) to slide with the guide rail (2); each of the protrusions (403) has a limiting inclined surface (402) on its upper surface; the limiting inclined surface (402) is inserted into the clamping gap on both sides below the slide block (201).

9. A milling machine tooling according to any one of claims 1-8, characterized in that, The milling machine tooling also includes an auxiliary support platform (8); the auxiliary support platform (8) is provided in pairs and is located on both sides of the clamping block (3); the outer edge of the top of the auxiliary support platform (8) is formed with a flange (801) for restricting the workpiece from moving to both sides; the auxiliary support platform (8) is provided with a relief groove (802) in the middle.

10. A milling machine tooling according to claim 9, characterized in that, The auxiliary support platform (8) is also provided with a lifting platform (9) on its outer side for lifting the workpiece; the support platform (1) is connected to the drive end of a driving device.

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