Horizontal five-axis machine tool

Abstract

The application discloses a horizontal five-axis machine tool, which comprises a bed body, a frame piece, reinforcing pieces, a slide saddle, a main shaft, a composite rotary table, a first slide rail and a first driving piece. The frame piece is in a hollow square structure and is fixedly installed on the bed body and comprises a first frame and a second frame sleeved outside the first frame. The first frame is fixedly connected with the second frame and surrounds a cavity. The slide saddle is slidably connected with the frame piece, and the main shaft is slidably connected with the slide saddle. A plurality of reinforcing pieces are arranged in the cavity, are arranged along the circumference of the frame piece, are connected with the first frame and the second frame, and are used for reinforcing the frame piece. The composite rotary table is installed on the bed body. The first slide rail is fixedly installed on the bed body and is slidably connected with the composite rotary table. The first slide rail extends along a third direction. The first driving piece is connected with the bed body and is used for driving the composite rotary table to move along the first slide rail. In the above manner, the strength and rigidity of the horizontal five-axis machine tool can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of machine tools, in particular to a horizontal five-axis machine tool. BACKGROUND

[0002] As an important high-precision machining equipment in modern manufacturing industry, the horizontal five-axis machine tool is widely used in the fields of aerospace, automobile manufacturing, mold processing, etc. Its main advantage is that it can realize multi-axis simultaneous machining of complex parts, thereby improving machining efficiency and precision. However, with the increasing demand for machining, especially the increasing demand for high-precision and large-load machining, the traditional machine tool structure gradually exposes some shortcomings. Under the conditions of high load and high speed machining, the insufficient rigidity and strength of the machine tool often lead to problems such as deformation and vibration. Therefore, it is urgent to improve the strength and rigidity of the horizontal five-axis machine tool. SUMMARY

[0003] The technical problem solved by the present application is to provide a horizontal five-axis machine tool that can improve the strength and rigidity of the horizontal five-axis machine tool.

[0004] To solve the above technical problems, one technical solution adopted by the present application is to provide a horizontal five-axis machine tool, comprising: a bed; a frame member in a hollow square structure, fixedly installed on the bed, comprising a first frame and a second frame sleeved outside the first frame, the first frame and the second frame being fixedly connected and surrounding a cavity, the frame member being used for installing a tool for machining a workpiece; a plurality of reinforcing members located in the cavity, arranged along the circumference of the frame member, connecting the first frame and the second frame, and used for reinforcing the frame member; a slide saddle in sliding connection with the frame member, so that the slide saddle slides in a first direction; a main shaft in sliding connection with the slide saddle, used for installing a tool for machining a workpiece and driving the tool to move in the first direction and a second direction; a composite turntable installed on the bed, used for carrying and driving the workpiece to rotate in a first rotation direction and a second rotation direction, wherein the first rotation direction is a rotation direction around the first direction, the second rotation direction is a rotation direction around the second direction, the second direction is a vertical direction, the first direction is perpendicular to the second direction, and the first direction is parallel to the plane in which the frame member is located; a first slide rail fixedly installed on the bed and in sliding connection with the composite turntable, the first slide rail extending in a third direction, the first direction, the second direction and the third direction being perpendicular to each other; and a first driving member connected with the bed, used for driving the composite turntable to move along the first slide rail.

[0005] In the first frame, the width gradually decreases in the third direction, and / or the width of the second frame gradually decreases in the third direction.

[0006] The composite turntable includes: a horizontal turntable slidably connected to the first slide rail; a bridge plate connected to the horizontal turntable; a first clamping member and a second clamping member located at both ends of the bridge plate for clamping the workpiece; and a turntable drive member connected to both the first clamping member and the second clamping member for driving the first clamping member and the second clamping member to rotate, thereby causing the workpiece to rotate along the first rotation direction.

[0007] The bridge plate has a first groove on the side facing the horizontal turntable. The composite turntable further includes a connector located in the first groove, connecting the bridge plate and the horizontal turntable, and abutting against the side wall and bottom wall of the first groove. A locking member passes through the side wall of the first groove to connect the connector and the bridge plate, and passes through the bottom wall to connect the connector and the bridge plate.

[0008] The bridge plate has a second groove on the side opposite to the horizontal turntable. The composite turntable also includes a telescopic member located in the second groove, one end of which is slidably connected to the first clamping member to control the sliding of the first clamping member and adjust the distance between the first clamping member and the second clamping member.

[0009] The composite turntable further includes a protective cover, which is slidably connected to the bridge plate and sleeved on the telescopic component to protect the telescopic component.

[0010] The bridge plate is further provided with a first guide rail, which is slidably connected to the first clamping member. The telescopic member includes a motor connected to the lead screw for driving the lead screw to cause the first clamping member to slide relative to the first guide rail.

[0011] The horizontal five-axis machine tool further includes: a plurality of first sliders and a plurality of second sliders, which are slidably connected to the frame member and fixedly connected to the slide saddle. The mounting surfaces of the plurality of first sliders face the frame member, and the mounting surfaces of the plurality of second sliders face the bed. The plurality of first sliders and the plurality of second sliders are arranged along the first direction. An adjusting shim is located between the first sliders, the second sliders and the frame member, and is used to adjust the relative position between the slide saddle and the frame member.

[0012] The horizontal five-axis machine tool further includes: a second slide rail, which is fixedly connected to the slide saddle and slidably connected to the spindle, and the second slide rail extends along the second direction; and a second driving member, which is located inside the second slide rail and connected to the spindle, for driving the spindle to move along the second slide rail.

[0013] The horizontal five-axis machine tool further includes: a third slide rail, which is fixedly connected to the frame member and extends along the first direction; and a third drive member, which is slidably connected to the slide saddle and is used to drive the slide saddle to move along the third slide rail.

[0014] The beneficial effects of this application are as follows: Unlike existing technologies, in this application, the frame of the horizontal five-axis machine tool is fixedly connected to the bed, the spindle is mounted on the frame, and a composite rotary table is placed on the bed. The composite rotary table carries the workpiece, and the slide saddle is slidably connected to both the frame and the bed. On one hand, the first frame is fitted onto the second frame, allowing the forces generated during machine tool operation to be distributed between the two, effectively dispersing stress and avoiding stress concentration. This reduces deformation or damage to the frame due to excessive local stress, resulting in a more robust overall structure. On the other hand, the cavities of the first and second frames are reinforced with fasteners, which connect the first and second frames, making... The first and second frames form a tight structure, ensuring more uniform and stable force transmission between them. This also reduces the weight of the frame body in the horizontal five-axis machine tool, improves the rigidity and strength of the frame components, and avoids deformation and vibration under high load and high-speed cutting. Furthermore, the frame components have a hollow structure, while the horizontal five-axis machine tool has an open structure, which facilitates machine tool inspection and maintenance. On the other hand, the slide saddle is slidably connected to both the bed and the frame components. The slide saddle and the frame components form a stable box-within-a-box structure. The frame components provide support and vibration isolation for the slide saddle, while the slide saddle provides guidance and load-bearing for the spindle. Through the synergistic effect of the slide saddle and the frame components as inner and outer boxes, the overall rigidity of the horizontal five-axis machine tool is improved. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0016] Figure 1 This is a schematic diagram of one embodiment of the horizontal five-axis machine tool of this application;

[0017] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the middle frame component along the AA' direction;

[0018] Figure 3 yes Figure 1 Schematic diagram of the structure of the composite turntable;

[0019] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure of the middle frame component along the BB' direction;

[0020] Figure 5 yes Figure 1 A schematic diagram of the structure of the adjustment pad. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] See Figures 1 to 3 The horizontal five-axis machine tool 1 includes a bed 10, a frame 20, a reinforcing member 30, a composite rotary table 40, a spindle 50, a first slide rail 610, a first drive member 620, and a slide saddle 70.

[0023] The frame member 20 has a hollow square structure and is fixedly installed on the bed 10. The frame member 20 includes a first frame 210 and a second frame 220 sleeved outside the first frame 210. The first frame 210 and the second frame 220 are fixedly connected and form a cavity. The frame member 20 is used to install the cutting tool for machining the workpiece. Multiple reinforcing members 30 are located in the cavity and arranged circumferentially along the frame member 20, connecting the first frame 210 and the second frame 220 to reinforce the frame member 20. The slide saddle 70 is slidably connected to the frame member 20 so that the slide saddle 70 slides in the first direction X. The spindle 50 is slidably connected to the slide saddle 70 and is used to install the cutting tool for machining the workpiece and to drive the cutting tool to move in the first direction X and the second direction Y.

[0024] Specifically, the bed 10 is fixedly connected to the frame member 20, for example, by means of locking bolts. The frame member 20 is placed vertically on the bed 10, and the spindle 50 is mounted on the frame member 20. When the horizontal five-axis machine tool 1 is machining, when the spindle 50 moves along the first direction X and the second direction Y, the spindle 50 generates a reaction force on the frame member 20, causing the frame member 20 to deform. At the same time, the high-speed rotation of the spindle 50 causes the frame member 20 to vibrate. The top of the frame member 20 is subjected to its own weight and the pressure of the spindle 50, resulting in high pressure on the top of the frame member 20 and easy deformation of the top of the frame member 20. This application increases the strength and rigidity of the frame member 20 by setting the first frame 210 and the second frame 220 in the frame member 20 to form a double-layer frame structure. The cavity contains multiple circumferentially arranged reinforcement members 30, which are arranged in a cross pattern. This means the reinforcement members 30 are arranged in at least two directions, with connection points between reinforcement members 30 in different directions. For example, some reinforcement members 30 are arranged horizontally, while others are arranged vertically, forming a cross shape. The two groups of reinforcement members 30 are connected at the intersection, increasing the number and strength of connection points between the multiple reinforcement members 30. Furthermore, the reinforcement members 30 are spaced apart along a first direction X. This can be either an equal-spaced arrangement (e.g., a spacing of 220mm between two reinforcement members 30) or an unequal-spaced arrangement (e.g., spacing of 230mm, 220mm, 220mm…230mm). The reinforcement members 30 are also spaced apart along a second direction Y. This can also be either an equal-spaced or unequal-spaced arrangement, with the spacing decreasing gradually from 150mm, 129.5mm, 106.5mm… The reinforcing member 30 and the frame member 20 can be formed by integral casting. The reinforcing member 30 further increases the connection strength of the frame member 20, providing good stability for the horizontal five-axis machine tool 1, enabling the horizontal five-axis machine tool 1 to maintain stable machining performance. Among them, the first frame 210 and the second frame 220 are integrally formed, that is, the frame member 20 is a whole. The slide saddle 70 is slidably connected to the frame member 20. One end of the slide saddle 70 is slidably connected to the top of the frame member 20, and the other end of the slide saddle 70 is slidably connected to the bottom of the frame member 20, so that the slide saddle 70 and the frame member 20 form a stable box-within-a-box structure. The frame member 20 provides support and vibration isolation for the slide saddle 70, and the slide saddle 70 provides guidance and load-bearing for the spindle 50. Through the synergistic effect of the slide saddle 70 and the frame member 20 as inner and outer boxes, the overall rigidity of the horizontal five-axis machine tool 1 is improved.

[0025] The composite rotary table 40 is mounted on the bed 10 and is used to carry and drive the workpiece to rotate along the first rotation direction A and the second rotation direction B. The first slide rail 610 is fixedly mounted on the bed 10 and slidably connected to the composite rotary table 40. The first slide rail 610 extends along the third direction Z. The first drive member 620 is connected to the bed 10 and is used to drive the composite rotary table 40 to move along the first slide rail 610. The first rotation direction A is the rotation direction about the first direction X, the second rotation direction B is the rotation direction about the second direction Y, the second direction Y is the vertical direction, the first direction X is perpendicular to the second direction Y, and the first direction X is parallel to the plane where the frame member 20 is located. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0026] Specifically, the composite turntable 40 carries the workpiece and drives the workpiece to rotate along the first rotation direction A and the second rotation direction B, which facilitates the tool to perform milling, turning and other machining operations on the spindle 50. The first driving member 620 drives the composite turntable 40 to slide back and forth along the third direction Z on the first slide rail 610, which facilitates the adjustment of the position of the composite turntable 40.

[0027] In this application, the frame component 20 of the horizontal five-axis machine tool 1 is connected to the bed 10, the spindle 50 is mounted on the frame component 20, and the bed 10 houses the composite rotary table 40, which carries the workpiece. The first frame 210 of the frame component 20 is fitted onto the second frame 220, so that the force generated by the horizontal five-axis machine tool 1 during operation can be distributed between the two, effectively dispersing stress and avoiding stress concentration, thereby reducing the deformation or damage of the frame component 20 due to excessive local stress, making the overall structure more robust. The cavities of the first frame 210 and the second frame 220 are provided with reinforcement components 30, which connect the first frame 210 and the second frame 220, so that the first frame 210 and the second frame 220 form a tight structure, ensuring that the force transmission between the two is more uniform and stable, while reducing the weight of the frame body in the horizontal five-axis machine tool 1, improving the rigidity and strength of the frame component 20, and avoiding deformation and vibration under high load and high speed cutting.

[0028] In one embodiment, the spindle 50 is a short-nose spindle, which is typically used in high-speed and precision machining applications because the shorter nose structure can reduce the deformation and instability of the spindle 50 during high-speed rotation, thereby improving machining accuracy and quality.

[0029] Continue reading Figure 1 In one embodiment, the composite turntable 40 includes a horizontal turntable 410, a bridge plate 420, a first clamping member 430, a second clamping member 440, and a turntable drive member (not shown).

[0030] The horizontal turntable 410 is slidably connected to the first slide rail 610, the bridge plate 420 is connected to the horizontal turntable 410, the first clamping member 430 and the second clamping member 440 are located at both ends of the bridge plate 420 and are used to clamp the workpiece. The turntable drive member is connected to both the first clamping member 430 and the second clamping member 440 and is used to drive the first clamping member 430 and the second clamping member 440 to rotate, so as to drive the workpiece to rotate along the first rotation direction A.

[0031] Specifically, the bridge plate 420 is connected to the horizontal turntable 410. The horizontal turntable 410 moves relative to the first slide rail 610 along a third direction Z, and the bridge plate 420 moves relative to the first slide rail 610 along a third direction Z. The first clamping member 430 and the second clamping member 440 jointly clamp the workpiece, causing the workpiece to rotate along the first rotation direction A. When the turntable drive causes the bridge plate 420 to rotate along the second rotation direction B, the bridge plate 420 causes the first clamping member 430 and the second clamping member 440 to rotate along the second rotation direction B, thereby causing the workpiece to rotate along the second rotation direction B.

[0032] In one embodiment, the first clamping member 430 and the second clamping member 440 drive the workpiece to rotate within a range of 0 degrees to 360 degrees along the first rotation direction A. In other words, the workpiece is rotated around the entire circumference, allowing the workpiece to be fully milled, turned, and operated during the processing.

[0033] In one embodiment, the first clamping member 430 and the second clamping member 440 drive the workpiece to rotate in the second rotation direction B with an angle range of -40 degrees to 40 degrees. The bridge plate 420 drives the first clamping member 430 and the second clamping member 440 to rotate synchronously, so that the synchronization accuracy between the bridge plate 420 and the first clamping member 430 and the second clamping member 440 is high and the processing range is large.

[0034] In one embodiment, the rotary table drive of the composite rotary table 40 includes a turbine and a worm gear. The worm gear contacts the turbine through its helical teeth and drives the turbine to rotate, thereby causing the bridge plate 420 to rotate.

[0035] Continue reading Figure 3 In one embodiment, the bridge plate 420 is provided with a first groove 421 on the side facing the horizontal turntable 410. The composite turntable 40 also includes a connector 450, which is located in the first groove 421, connects the bridge plate 420 and the horizontal turntable 410, and abuts against the side wall and bottom wall of the first groove 421. A locking member passes through the side wall of the first groove 421 to connect the connector 450 and the bridge plate 420, and passes through the bottom wall to connect the connector 450 and the bridge plate 420.

[0036] Specifically, the connector 450 is connected to the horizontal turntable 410, which drives the connector 450 to rotate in the second rotation direction B. The connector 450 is connected to the bridge plate 420, which drives the bridge plate 420 to rotate in the second rotation direction B. The connector 450 is located in the first groove 421 of the bridge plate 420, abutting against the side wall and bottom wall of the first groove 421. The locking member passes through the side wall of the first groove 421 to connect the connector 450 and the bridge plate 420, and passes through the bottom wall to connect the connector 450 and the bridge plate 420. The connector 450 provides support to the bridge plate 420 in both depth and width directions. When the first clamping member 430 on the bridge plate 420 moves to increase the distance between the first clamping member 430 and the second clamping member 440, the connector 450 is fixed to the bridge plate 420 on multiple sides, thereby providing stable support for the first clamping member 430 and the second clamping member 440, ensuring that the bridge plate 420 has higher stability and strength during rotation, effectively transmitting torque, and ensuring precise movement of the bridge plate 420 during rotation, avoiding unnecessary offset or instability. At the same time, the way the connector 450 cooperates with the first groove 421 increases the rigidity of the entire system, enabling the bridge plate 420 to withstand greater loads and extending the service life of the equipment.

[0037] In one embodiment, the locking element includes at least one of bolts, rivets, and nuts. That is, the locking element includes one or more of bolts, rivets, and nuts. For example, the locking element is a nut, which passes through the side wall and bottom wall of the first groove 421 to connect the connector 450 and the bridge plate 420.

[0038] In one embodiment, the bridge plate 420 is made of one or more of stainless steel, titanium alloy, and carbon fiber composite materials. That is, the bridge plate 420 can be made of stainless steel alone, or a mixture of stainless steel and titanium alloy. Stainless steel is a steel with high strength and corrosion resistance. Using stainless steel as the material for the bridge plate 420 can improve its durability. Carbon fiber composite materials are lightweight but extremely high-strength composite materials, typically used in structures requiring high strength while minimizing weight. Using carbon fiber composite materials as the material for the bridge plate 420 improves its strength and reduces its weight.

[0039] Continue reading Figure 1 The bridge plate 420 is provided with a second groove 422 on the side opposite to the horizontal turntable 410. The composite turntable 40 also includes a telescopic member 460, which is located in the second groove 422. One end of the telescopic member 460 is connected to the first clamping member 430 and is used to control the sliding of the first clamping member 430 to adjust the distance between the first clamping member 430 and the second clamping member 440.

[0040] Specifically, the telescopic member 460 is disposed in the second groove 422 and is slidably connected to the first clamping member 430. The telescopic member 460 controls the sliding of the first clamping member 430 and adjusts the distance between the first clamping member 430 and the second clamping member 440 to accommodate workpieces of different sizes between the first clamping member 430 and the second clamping member 440.

[0041] In one embodiment, the first clamping member 430 and the second clamping member 440 are fixed at the position of the bridge plate 420, that is, the first clamping member 430 and the second clamping member 440 are fixedly connected to the bridge plate 420, which can maintain precise positioning during the machining process of the horizontal five-axis machine tool 1 and prevent loosening or displacement caused by vibration or external force.

[0042] In one embodiment, the distance between the first clamping member 430 and the second clamping member 440 ranges from 300 mm to 700 mm, and the distance between the first clamping member 430 and the second clamping member 440 can be 300 mm, 400 mm, 500 mm, 600 mm or 700 mm. It should be noted that this application does not impose a specific limitation on the distance between the first clamping member 430 and the second clamping member 440.

[0043] Continue reading Figure 1 The composite turntable 40 also includes a protective cover 470, which is slidably connected to the bridge plate 420 and is sleeved on the telescopic component 460 to protect the telescopic component 460.

[0044] Specifically, the protective cover 470 is fitted over the telescopic member 460 and is slidably connected to the bridge plate 420. When the telescopic member 460 moves the first clamping member 430, the protective cover 470 and the first clamping member 430 move simultaneously to provide comprehensive protection for the telescopic member 460. This effectively prevents debris or impurities generated during processing from entering the second groove 422, thus avoiding wear or damage to the telescopic member 460. Especially in precision machining environments, where debris can affect the accuracy and service life of mechanical parts, protecting the telescopic member 460 from external contamination is crucial. Therefore, the protective cover 470 fitted over the telescopic member 460 greatly improves the durability and stability of the equipment and extends its service life.

[0045] In one embodiment, the material of the protective cover 470 includes one or more of stainless steel, titanium alloy, and carbon fiber composite material. That is, the material of the bridge plate 420 includes one or more of stainless steel, titanium alloy, and carbon fiber composite material. The bridge plate 420 can be made of stainless steel alone, or it can be a mixture of stainless steel and titanium alloy. Stainless steel has the characteristics of resisting wear, acid and alkali corrosion and high temperature, and is often used in harsh industrial environments. Using stainless steel as the material of the protective cover 470 makes it easier to block debris and cutting fluid, and avoid damage to the telescopic component 460.

[0046] Continue reading Figure 1 In one embodiment, the bridge plate 420 is further provided with a first guide rail 4610, which is slidably connected to the first clamping member 430. The telescopic member 460 includes a lead screw 4620 and a motor (not shown). The lead screw 4620 is located inside the first guide rail 4610 and is slidably connected to the first clamping member 430. The motor is connected to the lead screw 4620 and is used to drive the lead screw 4620 to drive the first clamping member 430 to slide relative to the first guide rail 4610.

[0047] Specifically, the first guide rail 4610 is slidably connected to the first clamping member 430. The first clamping member 430 can move back and forth along the first guide rail 4610 to adjust the distance between the first clamping member 430 and the second clamping member 440. The lead screw 4620 is located inside the first guide rail 4610, and the extension direction of the lead screw 4620 is parallel to the extension direction of the first guide rail 4610, which drives the first clamping member 430 to move along the first guide rail 4610. The position of the second clamping member 440 is fixed, and the distance between the first clamping member 430 and the second clamping member 440 is changed, which makes it convenient for the first clamping member 430 and the second clamping member 440 to install workpieces of different sizes.

[0048] In one embodiment, the lead screw 4620 has a low lead pitch, which facilitates more precise position adjustment of the first clamping member 430 and is suitable for high-precision positioning requirements.

[0049] In another embodiment, the telescopic member 460 can also be a cylinder. The piston of the cylinder is connected to the first clamping member 430. The cylinder drives the first clamping member 430 to move along the first guide rail 4610. The position of the second clamping member 440 is fixed. The distance between the first clamping member 430 and the second clamping member 440 is controlled by the cylinder to install workpieces of different sizes.

[0050] Continue reading Figure 1 and Figure 5 The horizontal five-axis machine tool 1 also includes a first slider (not shown), a second slider (not shown), and an adjusting shim 90. Multiple first sliders and multiple second sliders are slidably connected to the frame member 20 and fixedly connected to the slide saddle 70. The mounting surfaces of the multiple first sliders face the frame member 20, and the mounting surfaces of the multiple second sliders face the bed 10. The multiple first sliders and multiple second sliders are arranged along the first direction X. The adjusting shim 90 is located between the first sliders, the second sliders, and the frame member 20, and is used to adjust the relative position between the slide saddle 70 and the frame member 20.

[0051] Specifically, the slide saddle 70 is fixedly connected to the first slide block and the second slide block, and the first and second slide blocks are slidably connected to the frame member 20, allowing the slide saddle 70 to slide in the first direction X. The mounting surfaces of the multiple first slide blocks face the frame member 20, and the mounting surfaces of the multiple second slide blocks face the bed 10. The first and second slide blocks are arranged along the first direction X to facilitate a stable connection between the slide saddle 70 and the frame member 20. Furthermore, the mounting surfaces of the first and second slide blocks face the frame member 20 and the bed 10, respectively, so that the first and second slide blocks are located on two different surfaces of the slide saddle 70. Normally, the first and second slide blocks are located on two vertical surfaces of the slide saddle 70. The first slide block is located on the surface of the slide saddle 70 adjacent to the frame member 20 and perpendicular to the third direction Z, and the second slide block is located on the surface of the slide saddle 70 adjacent to the frame member 20 and perpendicular to the second direction Y. When installing the first and second slide blocks, due to the existence of machining accuracy errors, the two surfaces of the slide saddle 70... There may be excessive gaps between the two vertical surfaces of the first slider and the corresponding two vertical surfaces of the frame member 20, causing a misalignment in the perpendicularity of the mounting surfaces of the first slider and the second slider. This can lead to abnormal noises or vibrations in the sliding saddle 70 during movement. In this application, the adjusting shim 90 is located between the first slider, the second slider, and the frame member 20. The adjusting shim 90 fills the gaps between the two vertical surfaces of the sliding saddle 70 and the corresponding two vertical surfaces of the frame member 20. The perpendicularity of the two surfaces of the frame member 20 can be reduced by scraping or grinding the thickness of the adjusting shim 90, thereby reducing the perpendicularity misalignment between the mounting surfaces of the first slider and the second slider. This allows the adjusting shim 90 to further adjust and optimize the gaps and contact states between the first slider and the frame member 20, and between the second slider and the frame member 20. By fine-tuning the gaps, it is ensured that the first slider and the second slider have appropriate tightness during movement, avoiding vibration or accuracy problems caused by excessive or insufficient gaps. In one embodiment, the two vertical surfaces of the frame member 20 have waist holes. The adjusting shim 90 is installed in the waist holes by screws or bolts, thereby fixing the adjusting shim 90 to the frame member.

[0052] In one embodiment, two first sliders and two second sliders are fixedly connected to the slide saddle 70. The two first sliders are spaced apart on the upper part of the slide saddle 70, and the two second sliders are spaced apart on the lower part of the slide saddle 70. This allows for fine adjustment of the gap between the first sliders and the frame member 20, as well as the gap between the second sliders and the frame member 20, thereby reducing the positional error between the slide saddle 70 and the frame member 20.

[0053] Continue reading Figure 1The horizontal five-axis machine tool 1 also includes a second slide rail 630 and a second drive member 640. The second slide rail 630 is fixedly connected to the slide saddle 70 and slidably connected to the spindle 50. The second slide rail 630 extends along the second direction Y. The second drive member 640 is located inside the second slide rail 630 and is connected to the spindle 50 for driving the spindle 50 to move along the second slide rail 630.

[0054] Specifically, the second slide rail 630 is located on the slide saddle 70 and is fixedly connected to the slide saddle 70. The spindle 50 slides back and forth on the second slide rail 630 along the second direction Y. The second drive member 640 controls the spindle 50 to move along the second slide rail 630, thereby the spindle 50 drives the tool to move along the second direction Y, realizing the positioning of the tool in the second direction Y, which facilitates the processing of the workpiece.

[0055] In one embodiment, the second drive member 640 includes a lead screw motor, which drives the main shaft 50 to move along the second direction Y on the second slide rail 630.

[0056] Continue reading Figure 1 The horizontal five-axis machine tool 1 also includes a third slide rail 650 and a third drive member 660. The third slide rail 650 is fixedly connected to the frame member 20 and extends along the first direction X. The third drive member 660 is slidably connected to the slide saddle 70 and is used to drive the slide saddle 70 to move along the third slide rail 650.

[0057] Specifically, the third slide rail 650 is located on the frame member 20 and is fixedly connected to the frame member 20. The slide saddle 70 moves along the first direction X on the third slide rail 650. The third drive member 660 drives the slide saddle 70 to move along the first direction X. The slide saddle 70 drives the spindle 50 located on the slide saddle 70 to move along the first direction X. In turn, the spindle 50 drives the tool to move along the first direction X, thereby realizing the positioning of the tool in the first direction X.

[0058] In one embodiment, the third drive member 660 includes a lead screw motor, which drives the main shaft 50 to move along the third direction Z on the third slide rail 650.

[0059] See Figure 4In one embodiment, the width of the first frame 210 gradually decreases in the third direction Z, which can be linear or non-linear. When the width of the first frame 210 decreases linearly in the third direction Z, the cross-section of the first frame 210 is trapezoidal. For example, one side of the trapezoid has an inclination of 20° relative to the third direction Z, and the other side of the trapezoid has an inclination of 20° relative to the third direction Z. This increases the load-bearing area compared to a square column. By optimizing the geometry of the first frame 210, its rigidity and strength are enhanced. As the main load-bearing part supporting the sliding saddle, the first frame 210 is subjected to stress and deformation analysis. When the frame is loaded with a force of 10000N, the maximum overall deformation of the frame is 0.03mm, which meets the actual usage requirements. Simulation analysis verifies that the load-bearing capacity of the first frame 210 is enhanced. It should be noted that in this embodiment, the width of the second frame 220 is not limited.

[0060] Continue reading Figure 4 In one embodiment, the width of the second frame 220 gradually decreases in the third direction Z, which can be linear or non-linear. When the width of the second frame 220 decreases linearly in the third direction Z, the cross-section of the second frame 220 is trapezoidal. For example, one side of the trapezoid has an inclination of 20° relative to the third direction Z, and the other side of the trapezoid has an inclination of 17° relative to the third direction Z. By optimizing the geometry of the second frame 220, the rigidity and strength of the second frame 220 are enhanced, and the enhanced load-bearing capacity of the second frame 220 is verified by simulation analysis. It should be noted that in this embodiment, the width of the first frame 210 is not limited.

[0061] In another embodiment, the width of the first frame 210 gradually decreases in the third direction Z, and the width of the second frame 220 gradually decreases in the third direction Z, thereby enhancing the strength of the first frame 210 and the second frame 220.

[0062] In one embodiment, the horizontal five-axis machine tool 1 further includes a tool magazine 80, which is located on the left side of the bed 10 and is fixedly connected to the bed 10. When it is necessary to change the spindle tool, the tool arm rotates 90 degrees to simultaneously pick up the tool in the tool magazine 80 and the tool on the spindle, which facilitates the replacement of the tool on the spindle 50.

[0063] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A horizontal five-axis machine tool, characterized by, The machine comprises: a bed body; a frame member in a hollow square structure fixedly mounted on the bed body, comprising a first frame and a second frame sleeved outside the first frame, the first frame and the second frame being fixedly connected and surrounding a cavity, the frame member being used for mounting a tool for machining a workpiece; a plurality of reinforcing members located in the cavity, arranged along the circumference of the frame member, connecting the first frame and the second frame, and used for reinforcing the frame member; a slide saddle in sliding connection with the frame member to enable the slide saddle to slide in a first direction; a main shaft in sliding connection with the slide saddle, used for mounting a tool for machining a workpiece and driving the tool to move in the first direction and a second direction; a composite rotary table mounted on the bed body, used for carrying and driving the workpiece to rotate in a first rotation direction and a second rotation direction, wherein the first rotation direction is a rotation direction around the first direction, the second rotation direction is a rotation direction around the second direction, the second direction is a vertical direction, the first direction is perpendicular to the second direction, and the first direction is parallel to a plane in which the frame member is located; a first slide rail fixedly mounted on the bed body and in sliding connection with the composite rotary table, the first slide rail extending along a third direction, the first direction, the second direction and the third direction being perpendicular to each other in pairs; a first driving member connected with the bed body and used for driving the composite rotary table to move along the first slide rail; wherein the width of the first frame gradually decreases in the third direction, and / or the width of the second frame gradually decreases in the third direction; wherein the composite rotary table comprises: a horizontal rotary table in sliding connection with the first slide rail; a bridge plate connected with the horizontal rotary table, the bridge plate being provided with a first groove on a side facing the horizontal rotary table; a first clamping member and a second clamping member located at two ends of the bridge plate and used for clamping the workpiece; a rotary table driving member connected with the first clamping member and the second clamping member and used for driving the first clamping member and the second clamping member to rotate to drive the workpiece to rotate in the first rotation direction; a connecting member located in the first groove, connecting the bridge plate and the horizontal rotary table, and abutting against a side wall and a bottom wall of the first groove, a locking member penetrating through the side wall of the first groove to connect the connecting member and the bridge plate, and penetrating through the bottom wall to connect the connecting member and the bridge plate.

2. The horizontal five-axis machine tool according to claim 1, characterized in that, the bridge plate is provided with a second groove on a side facing away from the horizontal rotary table, and the composite rotary table further comprises: an extension member located in the second groove and having one end in sliding connection with the first clamping member, used for controlling the first clamping member to slide to adjust the distance between the first clamping member and the second clamping member.

3. The horizontal five-axis machine tool according to claim 2, characterized in that, the composite rotary table further comprises: a protective cover in sliding connection with the bridge plate and sleeved on the extension member, used for protecting the extension member.

4. The horizontal five-axis machine tool according to claim 2, characterized in that, the bridge plate is further provided with a first guide rail in sliding connection with the first clamping member, and the extension member comprises: a lead screw located in the first guide rail and in sliding connection with the first clamping member. A motor is connected with the screw rod, and is used to drive the screw rod to drive the first clamping member to slide relative to the first guide rail.

5. The horizontal five-axis machine tool according to claim 1, characterized in that, The horizontal five-axis machine tool further comprises: A plurality of first sliding blocks and a plurality of second sliding blocks are slidably connected with the frame member and fixedly connected with the slide saddle, mounting surfaces of the plurality of first sliding blocks face the frame member, mounting surfaces of the plurality of second sliding blocks face the bed, and the plurality of first sliding blocks and the plurality of second sliding blocks are arranged along the first direction; An adjusting pad is located between the first sliding blocks, the second sliding blocks and the frame member, and is used to adjust the relative position between the slide saddle and the frame member.

6. The horizontal five-axis machine tool according to claim 1, characterized in that, The horizontal five-axis machine tool further comprises: A second sliding rail is fixedly connected with the slide saddle and slidably connected with the main shaft, and extends along the second direction; A second driving member is located in the second sliding rail, is connected with the main shaft, and is used to drive the main shaft to move along the second sliding rail.

7. The horizontal five-axis machine tool according to claim 1, characterized in that, The horizontal five-axis machine tool further comprises: A third sliding rail is fixedly connected with the frame member and extends along the first direction; A third driving member is slidably connected with the slide saddle, and is used to drive the slide saddle to move along the third sliding rail.

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