Gantry machine tool with follow-up water retaining device

Abstract

This invention relates to a gantry machine tool with a follow-up water-blocking device, comprising a work platform, a machine tool gantry, and a machine tool waterproof cover, and further including a front water-blocking curtain, a left-side water-blocking curtain, and a right-side water-blocking curtain. The front water-blocking curtain is installed on the ground in front of the work platform, while the left and right water-blocking curtains are located on the left and right sides of the work platform, respectively, and are rotatably mounted on the machine tool gantry. This invention employs a water-blocking curtain structure that moves with the machine tool gantry, and the side water-blocking curtains utilize a unique rotational motion design. As the machine tool gantry moves forward, they gradually form an envelope with the front water-blocking curtain, blocking splashing cooling water within the closed envelope surface and guiding the cooling water towards the work platform. This effectively prevents cooling water splashing during deep cutting processes, avoiding pollution of the surrounding environment.

Description

Technical Field

[0001] This invention relates to the field of machining, and more particularly to a gantry machine tool with a follow-up water-blocking device. Background Technology

[0002] When performing deep cutting on a gantry milling machine, the cutting force between the tool and the workpiece increases accordingly due to the large cutting depth. During the process of the coolant washing away the chips, the water flow direction changes due to the obstruction of the chips, resulting in water splashing everywhere. The existing water baffles installed on gantry milling machines need to also guide the chips to the chip removal device. Their size design is limited by the size of the chip removal device, resulting in insufficient effectiveness in blocking water splashes, which is a disadvantage during deep cutting. Summary of the Invention

[0003] To address the aforementioned problems, a gantry-type machine tool with a follow-up water-blocking device is provided. This follow-up water-blocking device has a simple structure, reliable function, and can move along with the gantry, thereby solving the problem of poor water-blocking effect during deep cutting machining.

[0004] The specific technical solution is as follows:

[0005] A gantry-type machine tool with a follow-up water-blocking device includes a work platform, a machine tool gantry, and a machine tool waterproof cover. It also includes a front water-blocking curtain, a left water-blocking curtain, and a right water-blocking curtain. The front water-blocking curtain is installed on the ground in front of the work platform. The left and right water-blocking curtains are located on the left and right sides of the work platform, respectively, and are rotatably installed on the machine tool gantry.

[0006] When the machine tool gantry moves forward to a certain position, the other ends of the left and right water curtains move toward the center of the work platform, forming a closed envelope surface with the left, front, and right water curtains. When the machine tool gantry moves backward, the other ends of the left and right water curtains rotate and reset the left and right water curtains to their original positions on the left and right sides of the work platform.

[0007] Furthermore, a front support is installed on the ground in front of the work platform, and a front water curtain is installed on the side of the front support close to the work platform.

[0008] Furthermore, a guide plate is installed on the front bracket, and the guide plate is inclined from the outside to the inside from one end near the left or right water curtain to the other end away from the left or right water curtain.

[0009] Furthermore, the machine tool gantry has a left support and a right support that rotate relative to the left and right sides of the work platform. The left and right water curtains are installed on the left and right supports respectively. Rollers are installed on the other end of the left and right supports near the guide plate.

[0010] Furthermore, the upper parts of the left and right brackets are rotatably mounted on the brackets via an upper rotating device. The upper rotating device includes a spring-loaded rotary shaft, a spring-loaded rotary shaft seat plate, and an off-axis mounting plate. The shaft of the spring-loaded rotary shaft is mounted on the machine tool gantry via the spring-loaded rotary shaft seat plate, and the left or right bracket is mounted on the spring-loaded shaft head of the spring-loaded rotary shaft via the off-axis mounting plate.

[0011] Furthermore, the upper rotating device also includes a limit bolt and a stop seat. The limit screw in the limit bolt is installed on the left or right support, and the stop seat is installed on the machine tool gantry. The limit screw passes through the stop seat and is screwed to the limit nut.

[0012] Furthermore, a limit stop is provided on the limit screw.

[0013] Furthermore, the limit stop is made of an elastic material.

[0014] Furthermore, the lower corresponding parts of the left and right supports are rotatably mounted on the supports via a lower rotating device. The lower rotating device includes a lower rotating shaft and a lower bearing sleeve. The lower rotating shaft is correspondingly mounted on the left or right support, and the lower bearing sleeve is mounted on the machine tool gantry. The bottom of the lower rotating shaft is rotatably mounted in the lower bearing sleeve.

[0015] Furthermore, the lower rotating device also includes, from top to bottom, an elastic retaining ring, a deep groove ball bearing, and a thrust ball bearing, with the bottom of the lower rotating shaft passing through the elastic retaining ring, the deep groove ball bearing, and the thrust ball bearing in sequence from top to bottom.

[0016] The beneficial effects of the above scheme are:

[0017] 1) This invention employs a water-blocking curtain structure that moves with the machine tool gantry. The side water-blocking curtain features a unique rotating motion design, gradually forming an envelope with the front water-blocking curtain as the machine tool gantry moves forward. This encloses the splashing cooling water within the closed envelope, guiding it towards the work platform. This effectively prevents cooling water splashing during deep cutting processes, avoiding pollution of the surrounding environment. Compared to traditional rigid water-blocking devices, this solution prevents forward splashing of cooling water, reducing the length of the drainage channel and foundation, thus reducing the machine tool's footprint. It also prevents cooling water from gradually entering the machine tool's internal structure during machining, avoiding oil-water mixing and damage to the machine tool, thereby extending its service life.

[0018] 2) The side support structure in this invention is a cantilever structure. When installing traditional heavy-duty spring-loaded hinges to complete the rotation, the cantilever structure often leads to uneven stress on the hinges, resulting in hinge damage or failure. This technical solution uses a spring-loaded rotating shaft, installed in an off-axis manner, which can automatically return to its original position. The solid shaft head inside the spring-loaded rotating shaft has high load-bearing capacity and is not easy to break, solving the problem of failure of the rotating mechanism in traditional structures. The lower bearing housing uses a combination of thrust ball bearings and deep groove ball bearings, which can simultaneously withstand large radial and axial loads, distribute the force, and avoid damage to a single bearing due to overload. The manufacturing and installation processes are reduced, and the quality is controllable.

[0019] 3) The guide plate features an obtuse angle transition design, making the roller transition more smoothly when passing through corners, reducing the impact caused by sudden angle changes, preventing roller slippage, and improving sliding performance and service life. The widened guide plate design prevents the roller from deviating from the guide when sliding. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the gantry milling machine provided in an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A magnified view of the area marked with the letter Ⅰ.

[0022] Figure 3 for Figure 1 A magnified view of the area marked with the letter II in the middle;

[0023] Figure 4 This is a schematic diagram of the installation structure of the lower rotating device, side support, and gantry machine tool in this invention;

[0024] Figure 5 This is a schematic diagram of the springback rotation shaft in this invention;

[0025] Figure 6 This is a schematic diagram of the operation of the gantry motion machine tool in this invention.

[0026] In the attached diagram: 1. Machine tool gantry; 2. Work platform; 3. Machine tool waterproof cover; 4. Front support; 5. Front water curtain; 6. Left side support; 7. Left side water curtain; 8. Right side support; 9. Right side water curtain; 10. Roller; 11. Guide plate; 12. Limit block; 13. Stop seat; 14. Spring-loaded rotary shaft; 15. Spring-loaded rotary shaft seat plate; 16. Offset shaft mounting plate; 17. Lower rotary shaft; 18. Lower bearing sleeve; 19. Deep groove ball bearing; 20. Thrust ball bearing; 21. Elastic retaining ring. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0030] like Figure 1 , Figure 6 As shown, the gantry machine tool provided in the embodiment of the present invention includes a working platform 2, a machine tool gantry 1, a machine tool waterproof cover 3, a front water curtain 5, a left water curtain 7, and a right water curtain 9. The front water curtain 5 is installed on the ground in front of the working platform 2. The left water curtain 7 and the right water curtain 9 are located on the left and right sides of the working platform 2, respectively. The left water curtain 7 and the right water curtain 9 are rotatably installed on the machine tool gantry 1.

[0031] In the initial state of this invention, the left water curtain 7 and the right water curtain 9 are located above the machine tool waterproof cover 3 on the left and right sides of the working platform 2. At this time, the left water curtain 7 and the right water curtain 9 can move with the machine tool gantry 1 to block the cooling water splashing everywhere under the cooperation of the machine tool waterproof cover 3. When the machine tool gantry 1 moves forward to a certain position, the other ends of the left water curtain 7 and the right water curtain 9, which are close to the front water curtain 5, abut against the front water curtain 5. Then, as the machine tool gantry 1 continues to move forward, the other ends of the left water curtain 7 and the right water curtain 9 move towards the center of the work platform 2 under the blocking effect of the front water curtain 5. This allows the left water curtain 7, the front water curtain 5, the right water curtain 9, and the machine tool waterproof cover 3 to always form a closed envelope surface, blocking the splashing cooling water inside the closed envelope surface and guiding the cooling water to move towards the work platform 2. This can effectively block the splashing of cooling water during deep cutting and avoid pollution to the surrounding environment of the machine tool. When the machine tool gantry 1 moves backward, the other ends of the left water curtain 7 and the right water curtain 9 rotate and reset the left water curtain 7 and the right water curtain 9 to their initial state.

[0032] Specifically, such as Figure 1 , Figure 6 As shown, in this invention, a front support 4 is installed on the ground in front of the work platform 2, and a front water curtain 5 is installed on the side of the front support 4 near the work platform 2. Based on this, as... Figure 1 , Figure 6As shown, in order to guide the left water curtain 7 and the right water curtain 9 so that the other ends of the left water curtain 7 and the right water curtain 9 can move closer to the center of the working platform 2 under the blocking effect of the front water curtain 5, a guide plate 11 is installed on the front bracket 4. The guide plate 11 is inclined from the outside to the inside from the end near the left water curtain 7 or the right water curtain 9 to the other end away from the left water curtain 7 or the right water curtain 9. Under the above structure, the other ends of the left water curtain 7 and the right water curtain 9 can move closer to the center of the working platform 2 under the action of the guide plate 11.

[0033] Specifically, such as Figure 1 , Figure 6 As shown, in this invention, the machine tool gantry 1 has a left support 6 and a right support 8 that rotate relative to the left and right sides of the working platform 2, respectively. A left water curtain 7 and a right water curtain 9 are respectively mounted on the left support 6 and the right support 8. Furthermore, to avoid unnecessary damage when the other ends of the left water curtain 7 and the right water curtain 9 move towards the center of the working platform 2 along the guide plate 11, as shown... Figure 1 , Figure 2 As shown, in this invention, rollers 10 are installed on the other end of the left support 6 and the right support 8 near the guide plate 11. The rollers 10 slide on the guide plate 11 to avoid damaging the left water curtain 7 and the right water curtain 9.

[0034] Specifically, such as Figure 1 , Figure 3 , Figure 5 , Figure 6 As shown, the upper parts of the left support 6 and the right support 8 are rotatably mounted on the support via an upper rotating device. The upper rotating device includes a spring-loaded rotating shaft 14, a spring-loaded rotating shaft seat plate 15, and an off-axis mounting plate 16. The shaft body 14-1 of the spring-loaded rotating shaft 14 is mounted on the machine tool gantry 1 via the spring-loaded rotating shaft seat plate 15. The left support 6 or the right support 8 is mounted on the spring-loaded shaft head 14-2 of the spring-loaded rotating shaft 14 via the off-axis mounting plate 16. The lower support structure of the above structure is characterized by a cantilever structure. When installing a traditional heavy-duty spring-loaded hinge to complete the rotation action, the cantilever structure often leads to uneven force on the hinge, resulting in hinge damage or failure. In this invention, the spring-loaded rotating shaft 14 is selected and installed in an off-axis manner, which allows for automatic return. The solid shaft head inside the spring-loaded rotating shaft 14 has the characteristics of high load-bearing capacity and is not easy to break, solving the problem of failure of the rotating mechanism in the traditional structure. Based on this technical solution, in order to further limit the reset action, such as Figure 1 , Figure 3As shown, the upper rotating device also includes a limiting bolt and a stop seat 13. The limiting screw in the limiting bolt is installed on the left support 6 or the right support 8. The stop seat 13 is installed on the machine tool gantry 1. The limiting screw passes through the stop seat 13 and is screwed to the limiting nut. In the above structure, when the other ends of the left water curtain 7 and the right water curtain 9 abut against each other, the limiting screw is at the end of its stroke. At this time, the limiting nut abuts against the stop seat 13. When the left water curtain 7 and the right water curtain 9 return to their initial state, the left support 6 and the right support 8 can abut against the stop seat 13. Figure 1 , Figure 3 As shown, in order to reduce the impact on the stop seat 13 when the left water curtain 7 and the right water curtain 9 are reset, a limit block 12 made of elastic material, such as rubber, can be further inserted on the limit screw. When the left water curtain 7 and the right water curtain 9 are reset to the initial state, the limit block 12 can directly abut against the stop seat 13 to reduce the impact effect.

[0035] Specifically, such as Figure 1 , Figure 4 As shown, in this invention, the lower supports 6 on the left and 8 on the right are rotatably mounted on the support via a lower rotating device. The lower rotating device includes a lower rotating shaft 17 and a lower bearing sleeve 18. The lower rotating shaft 17 is mounted on either the left or right support 6, and the lower bearing sleeve 18 is mounted on the machine tool gantry 1. The bottom of the lower rotating shaft 17 passes through the elastic retaining ring 21, the deep groove ball bearing 19, and the thrust ball bearing 20 in the lower bearing sleeve 18 from top to bottom. In this invention, the lower bearing housing is designed to use the thrust ball bearing 20 and the deep groove ball bearing 19 together, which can simultaneously withstand large radial and axial loads, distribute the force, and avoid damage to a single bearing due to overload. The manufacturing and installation processes are fewer, and the quality is controllable.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A gantry motion machine tool having a follow-up water blocking device, comprising a work platform, a machine tool gantry and a machine tool water shield, characterized in that, It also includes a front water curtain, a left water curtain and a right water curtain. The front water curtain is installed on the ground in front of the working platform. The left water curtain and the right water curtain are located on the left and right sides of the working platform respectively. The left water curtain and the right water curtain are rotatably installed on the machine tool gantry. When the machine tool gantry moves forward to a certain position, the other ends of the left and right water curtains move closer to the center of the working platform, forming a closed envelope surface with the left, front, and right water curtains. When the machine tool gantry moves backward, the other ends of the left and right water curtains rotate, causing the left and right water curtains to return to their original positions on the left and right sides of the working platform.

2. The gantry machine tool with a follow-up water-blocking device according to claim 1, characterized in that, A front support is installed on the ground in front of the work platform, and the front water curtain is installed on the side of the front support close to the work platform.

3. The gantry machine tool with a follow-up water-blocking device according to claim 2, characterized in that, A guide plate is installed on the front bracket. The guide plate is inclined from the outside to the inside from one end near the left or right water curtain to the other end away from the left or right water curtain.

4. The gantry motion machine with a follow-up water barrier device according to claim 3, characterized in that, The machine tool gantry has a left support and a right support that rotate relative to the left and right sides of the working platform. The left and right water curtains are respectively installed on the left and right supports. Rollers are installed on the other end of the left and right supports near the guide plate.

5. The gantry machine tool with a follow-up water-blocking device according to claim 4, characterized in that, The upper parts of the left and right brackets are rotatably mounted on the brackets via an upper rotating device. The upper rotating device includes a spring-loaded rotating shaft, a spring-loaded rotating shaft seat plate, and an off-axis mounting plate. The shaft of the spring-loaded rotating shaft is mounted on the machine tool gantry via the spring-loaded rotating shaft seat plate. The left or right bracket is mounted on the spring-loaded shaft head of the spring-loaded rotating shaft via the off-axis mounting plate.

6. The gantry motion machine with a follow-up water barrier device according to claim 5, characterized in that, The upper rotating device also includes a limiting bolt and a stop seat. The limiting screw in the limiting bolt is installed on the left side bracket or the right side bracket. The stop seat is installed on the machine tool gantry. The limiting screw passes through the stop seat and is spirally connected to the limiting nut.

7. The gantry motion machine with a follow-up water barrier device according to claim 6, characterized in that, A limiting stop is provided on the limiting screw.

8. The gantry machine tool with a follow-up water-blocking device according to claim 7, characterized in that, The limiting block is made of elastic material.

9. The gantry motion machine with a follow-up water barrier device according to claim 4, characterized in that, The lower corresponding parts of the left and right brackets are rotatably mounted on the brackets via a lower rotating device. The lower rotating device includes a lower rotating shaft and a lower bearing sleeve. The lower rotating shaft is correspondingly mounted on the left or right bracket, and the lower bearing sleeve is mounted on the machine tool gantry. The bottom of the lower rotating shaft is rotatably mounted in the lower bearing sleeve.

10. The gantry motion machine with a follow-up water barrier device according to claim 9, characterized in that, The lower rotating device further includes, from top to bottom, an elastic retaining ring, a deep groove ball bearing, and a thrust ball bearing, and the bottom of the lower rotating shaft is sequentially mounted on the elastic retaining ring, the deep groove ball bearing, and the thrust ball bearing from top to bottom.

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