Four-axis double-sided clamping fixture for machining center

Abstract

The utility model discloses a four-axis double-sided clamping fixture for a machining center, which relates to the technical field of tool fixtures and comprises a fixed bottom plate, a rotating mechanism tailstock is mounted on the left side of the top end of the fixed bottom plate, and a four-axis rotating mechanism is mounted on the right side of the top end of the fixed bottom plate. Butt-joint connecting plates are installed on the right side of the rotating mechanism tailstock and the left side of the four-axis rotating mechanism, a clamp main plate is movably installed between the butt-joint connecting plates on the two sides, and a plurality of clamping partition plates are installed at the top end and the bottom end of the clamp main plate at equal intervals. The clamping partition plate and the positioning pin can be adjusted, the fixture is suitable for cylindrical workpieces with different diameters and lengths, production efficiency is improved, batch clamping is supported, replacement time is shortened, the utilization rate of a machine tool is improved, accuracy and stability are achieved, the fixing mode is simple and reliable, it is ensured that the workpieces are clamped stably, and machining accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, specifically a four-axis double-sided clamping fixture for machining centers. Background Technology

[0002] Currently, tooling fixtures are specialized devices used to fix and position workpieces in production processes such as machining, assembly, and welding. By ensuring the precise position and stability of the workpiece during processing, they improve production efficiency and product quality. Traditional fixtures usually adopt a fixed-size clamping method, which is difficult to adapt to cylindrical workpieces of different specifications, resulting in frequent changes and reduced processing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a four-axis double-sided clamping fixture for machining centers to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a four-axis double-sided clamping fixture for a machining center, comprising a fixed base plate, a rotating mechanism tailstock mounted on the top left of the fixed base plate, a four-axis rotating mechanism mounted on the top right of the fixed base plate, docking connection plates mounted on the right side of the rotating mechanism tailstock and the left side of the four-axis rotating mechanism, a fixture main plate movably mounted between the two docking connection plates, a plurality of clamping partitions equidistantly mounted on the top and bottom of the fixture main plate, trapezoidal pressure blocks provided on the top and bottom of the fixture main plate between the clamping partitions, and pressure block locking screws movably mounted on the trapezoidal pressure blocks and the front and rear ends of the clamping partitions, with the end of the pressure block locking screw away from the trapezoidal pressure block connected to the outside of the fixture main plate.

[0005] Preferably, the top and bottom ends of the clamping main board are provided with a plurality of positioning pin holes and screw holes at equal intervals, and the cross-section of the trapezoidal pressure block is trapezoidal.

[0006] Preferably, the end of the pressure block locking screw away from the main clamping plate is equipped with a partition plate fixing screw, and the trapezoidal pressure block and the clamping partition plate are provided with several movable pin holes in the middle.

[0007] Preferably, a support spring is movably installed at the end of the clamping block locking screw near the main clamping plate, and two partition fixing pins are installed at the top and bottom of the main clamping plate at the relative positions of the clamping partition, with the top of the partition fixing pin engaging with the inner cavity of the movable pin hole.

[0008] Preferably, the main body of the clamp is equipped with several length positioning pins at equal intervals at the top and bottom.

[0009] Preferably, a fixing connecting block is installed on both sides of the fixture main board, and a connecting block screw is installed on the front and rear ends of the fixing connecting block on the side away from the fixture main board, and the connecting block screw is connected to the docking connecting plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model is adaptable to workpieces of different specifications: the adjustable clamping partition and positioning pin are suitable for cylindrical workpieces of different diameters and lengths;

[0012] Improve production efficiency: Support batch clamping, reduce changeover time, and increase machine tool utilization;

[0013] Precise and stable: The fixing method is simple and reliable, ensuring that the workpiece is firmly clamped and improving machining accuracy;

[0014] Easy to operate: Flexible adjustment methods reduce the difficulty of manual adjustment and improve processing convenience. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure is provided for the embodiments of this utility model;

[0016] Figure 2 A three-dimensional structural view of the upper end of the clamp main board provided in this embodiment of the utility model;

[0017] Figure 3 An exploded view of the top of the fixture motherboard provided in this embodiment of the utility model.

[0018] In the diagram: 1. Fixture main board; 2. Fixed connecting block; 3. Clamping partition; 4. Trapezoidal pressure block; 5. Connecting block screw; 6. Partition fixing screw; 7. Pressure block locking screw; 8. Support spring; 9. Partition fixing pin; 10. Length positioning pin; 11. Fixed base plate; 12. Rotating mechanism tailstock; 13. Four-axis rotating mechanism; 14. Connecting plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3This utility model provides a technical solution: a four-axis double-sided clamping fixture for a machining center, including a fixed base plate 11, a rotating mechanism tailstock 12 installed on the top left of the fixed base plate 11, a four-axis rotating mechanism 13 installed on the top right of the fixed base plate 11, a docking connection plate 14 installed on the right side of the rotating mechanism tailstock 12 and the left side of the four-axis rotating mechanism 13, a fixture main plate 1 movably installed between the two docking connection plates 14, a plurality of clamping partitions 3 equidistantly installed at the top and bottom of the fixture main plate 1, trapezoidal pressure blocks 4 are provided at the top and bottom of the fixture main plate 1 between the clamping partitions 3, and pressure block locking screws 7 are movably installed on the trapezoidal pressure blocks 4 and the front and rear ends of the clamping partitions 3, with the end of the pressure block locking screw 7 away from the trapezoidal pressure block 4 connected to the outside of the fixture main plate 1.

[0021] The main clamp 1 has several locating pin holes and screw holes at equal intervals at both the top and bottom ends, and the trapezoidal pressure block 4 has a trapezoidal cross-section.

[0022] The specific implementation method is as follows: The main board 1 of the fixture supports the various components of the fixture. The main board 1 has locating pin holes and screw holes evenly distributed on both sides for adjusting the installation position of the clamping partition 3, trapezoidal pressure block 4, length locating pin 10 and partition fixing pin 9. It also supports adding or removing the clamping partition 3, trapezoidal pressure block 4, length locating pin 10 and partition fixing pin 9 to achieve clamping of workpieces with different diameters and lengths. The main board 1 has locating grooves and screw holes at both ends for installing and fixing connecting blocks 2. The clamping partition 3 is adjusted in position through the screw holes and locating pins on the main board 1 to restrict the radial movement of the cylindrical workpiece to adapt to workpieces of different diameters and provide clamping support. The trapezoidal pressure block 4, through its trapezoidal cross section, cooperates with the clamping screw to apply clamping force to fix the cylindrical workpiece.

[0023] The end of the pressure block locking screw 7 away from the main board of the clamping fixture 1 is equipped with a partition plate fixing screw 6, and the trapezoidal pressure block 4 and the clamping partition plate 3 are both provided with several movable pin holes in the middle.

[0024] The specific implementation method is as follows: the partition fixing screw 6 is used to fix the partition 3.

[0025] Each of the clamping block locking screws 7 has a support spring 8 movably installed at one end near the clamping main board 1. The top and bottom ends of the clamping main board 1 are each equipped with two partition fixing pins 9 at the relative positions of the clamping partition 3. The top of the partition fixing pin 9 is engaged with the inner cavity of the movable pin hole.

[0026] The specific implementation method is as follows: the support spring 8 is fitted on the locking screw of the trapezoidal pressure block 4, which can lift and reset the trapezoidal pressure block 4 when the clamp is loosened, making it easier to remove the workpiece. The partition fixing pin 9 is used for the installation and positioning of the clamping partition 3. The position can be changed according to the pin hole on the main board of the clamp 1, and the workpieces of different diameters can be clamped in conjunction with the radial movement of the clamping partition 3.

[0027] Several length positioning pins 10 are installed at equal intervals at the top and bottom of the fixture main board 1;

[0028] The specific implementation method is as follows: the length positioning pin 10 is used to position the axial length of the cylindrical workpiece, and the axial position can be moved according to the positioning hole on the main board 1 of the fixture to realize the clamping of workpieces of different lengths.

[0029] Fixture main board 1 has fixed connecting blocks 2 installed on both sides. The front and rear ends of the fixed connecting blocks 2 away from fixture main board 1 are equipped with connecting block screws 5. The connecting block screws 5 are connected to the mating connecting plate 14. The fixed connecting blocks 2 have cross-shaped protrusions on the side close to fixture main board 1 and cylinders on the side away from fixture main board 1.

[0030] The specific implementation method is as follows: the fixed connecting block 2 is connected to the clamp main board 1 through a cross-shaped protrusion on one side, and is connected to the four-axis rotating mechanism 13 through a cylindrical protrusion structure on the other side, and the connection between the fixed connecting block 2 and the clamp main board 1 is locked by the connecting block screw 5.

[0031] Working principle: The main clamping plate 1 of this utility model has multiple screw holes and positioning pin holes. The clamping partition 3 is fixed to the main clamping plate 1 by screws and partition fixing pins 9. By adjusting the installation position of the clamping partition 3 on the main clamping plate 1, it can adapt to cylindrical workpieces of different diameters. The main clamping plate 1 has multiple positioning holes along the workpiece axis. The length positioning pin 10 can be inserted into different positioning holes. By changing the installation position of the length positioning pin 10, it can adapt to cylindrical workpieces of different lengths, achieving precise axial positioning. The trapezoidal pressure block 4 has a trapezoidal cross-section, and the workpiece contact surface is a trapezoidal inclined surface to adapt to workpieces of various diameters. The pressure block locking screw 7 passes through... The trapezoidal pressure block 4 is screwed into the threaded hole on the main board 1 of the fixture. The trapezoidal pressure block 4 clamps the workpiece by means of the pressure block locking screw 7. The clamping force is provided by the pressure block locking screw 7. The support spring 8 is sleeved on the pressure block locking screw 7 and is only used to support the trapezoidal pressure block 4. When the pressure block locking screw 7 is loosened, the trapezoidal pressure block 4 is pushed to reset, which makes it easy to remove the workpiece. The main board 1 of the fixture has symmetrical clamping mechanisms on both sides. Each side can clamp multiple workpieces (e.g., 4 on each side, 8 in total) to achieve double-sided clamping. The fixture is installed on the machining center by means of the fixed connecting blocks 2 on both sides and the four-axis rotation mechanism 13. The fourth axis drives the fixture to rotate to achieve multi-angle and multi-face machining.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A four-axis double-sided clamping fixture for a machining center, comprising a fixed base plate (11), characterized in that: A rotating mechanism tailstock (12) is installed on the top left of the fixed base plate (11), and a four-axis rotating mechanism (13) is installed on the top right of the fixed base plate (11). A docking connection plate (14) is installed on the right side of the rotating mechanism tailstock (12) and the left side of the four-axis rotating mechanism (13). A clamping main plate (1) is movably installed between the docking connection plates (14) on both sides. Several clamping partitions (3) are installed at equal intervals on the top and bottom of the clamping main plate (1). A trapezoidal pressure block (4) is provided on the top and bottom of the clamping main plate (1) between the clamping partitions (3). A pressure block locking screw (7) is movably installed on the front and rear ends of the trapezoidal pressure block (4) and the clamping partition (3). The end of the pressure block locking screw (7) away from the trapezoidal pressure block (4) is connected to the outside of the clamping main plate (1).

2. A four-axis double-sided clamping fixture for a machining center according to claim 1, characterized in that: The main clamp (1) has several positioning pin holes and screw holes at equal intervals at its top and bottom, and the trapezoidal pressure block (4) has a trapezoidal cross-section.

3. A four-axis double-sided clamping fixture for a machining center according to claim 1, characterized in that: The end of the pressure block locking screw (7) away from the main clamping plate (1) is equipped with a partition plate fixing screw (6), and the trapezoidal pressure block (4) and the clamping partition plate (3) are provided with several movable pin holes in the middle.

4. A four-axis double-sided clamping fixture for a machining center according to claim 3, characterized in that: Each of the pressure block locking screws (7) has a support spring (8) movably installed at one end near the main clamp (1). The top and bottom of the main clamp (1) are each equipped with two partition fixing pins (9) at the relative positions of the clamping partition (3). The top of the partition fixing pin (9) is engaged with the inner cavity of the movable pin hole.

5. A four-axis double-sided clamping fixture for a machining center according to claim 1, characterized in that: The main board of the clamp (1) is equipped with several length positioning pins (10) at equal intervals at its top and bottom.

6. A four-axis double-sided clamping fixture for a machining center according to claim 1, characterized in that: Fixed connecting blocks (2) are installed on both sides of the main clamp (1). Connecting block screws (5) are installed on the front and rear ends of the fixed connecting block (2) away from the main clamp (1). The connecting block screws (5) are connected to the docking connecting plate (14).

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