Z-axis structure of composite material machining center
By introducing a counterweight cylinder and dust suction duct design into the Z-axis structure of the composite material machining center, the problem of workpiece damage caused by motor brake failure was solved, and the stability of the Z-axis structure and the dust prevention effect were improved.
Patent Information
- Application Number
- CN202422444298.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-10
AI Technical Summary
The Z-axis structure of existing composite material machining centers is prone to damage to the workpiece when the motor brake fails, increasing the risk of workpiece damage.
A screw structure and a counterweight cylinder are used to drive the Z-axis slide together. When the motor brake fails, the counterweight cylinder supports the slide and keeps it stationary. At the same time, a dust suction pipe and a dust cover are set at the screw installation position to improve structural stability and dust prevention effect.
It effectively avoids damage to the workpiece caused by the lowering of the Z-axis structure, reduces the risk of workpiece damage, and improves the stability and dust-proof effect of the Z-axis structure through uniform force and dust-proof design.
Smart Images
Figure CN223325883U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of composite material processing machine tools, and in particular to a Z-axis structure of a composite material processing center. Background Art
[0002] A composite machining center is a process testing or analytical instrument used in mechanical engineering. It integrates multiple machining technologies and can complete multiple machining tasks in a single setup, thereby improving part quality and repeatability while reducing costs. This type of machining center typically features seven axes and five simultaneous motions, automating a range of processes from turning to milling, quenching, and grinding. It is widely used in aerospace and other fields, as well as in major research institutes, and is a vital piece of equipment in modern manufacturing.
[0003] The Z-axis structure of the composite material machining center is responsible for driving the tool to move in the Z direction. Since it is processing composite materials, dust collection operations are required at the spindle head. The existing Z-axis structure is mainly driven by two screw structures installed at the screw installation position, and pipes are installed on the side of the Z-axis structure to guide dust circulation. In this way, if the motor brake in the screw mechanism fails, the Z-axis structure will drop, causing damage to the workpiece, thereby increasing the risk of workpiece damage. Utility Model Content
[0004] In order to improve the problem that when the motor brake in the screw mechanism fails, the Z-axis structure will drop, causing damage to the workpiece and increasing the risk of workpiece damage, the present application provides a Z-axis structure for a composite material machining center.
[0005] The Z-axis structure of a composite material processing center provided in this application adopts the following technical solution:
[0006] A Z-axis structure of a composite material processing center includes a Z-axis slide rail arranged on the Y-axis slide of the composite material processing center and a Z-axis slide slidably arranged on the Z-axis slide rail. The Y-axis slide is provided with a screw structure connected to the Z-axis slide. The screw structure is used to drive the Z-axis slide to slide back and forth along the Z-direction. The Y-axis slide is provided with two groups of counterweight cylinders, and the two groups of counterweight cylinders are respectively located on both sides of the Z-axis slide perpendicular to the Y-direction. The piston rods of the two groups of counterweight cylinders are connected to the Z-axis slide to be able to drive the Z-axis slide to slide.
[0007] By adopting the above technical solution, when the Z-axis structure is driven, the screw structure and the two counterweight cylinders simultaneously drive the Z-direction slide to slide along the Z-direction slide rail to realize the driving of the Z-axis structure. The screw structure can control the sliding accuracy of the Z-direction slide, and the counterweight cylinder can bear the weight of the Z-direction slide. When the motor brake in the screw structure fails, the Z-direction slide remains stationary under the support of the counterweight cylinder, thereby effectively avoiding the Z-axis structure from falling and causing damage to the workpiece, thereby reducing the risk of damage to the workpiece.
[0008] In a specific embodiment, the counterweight cylinder is a linear cylinder.
[0009] By adopting the above technical solution, compared with oil cylinder drive, the linear cylinder is used to drive the Z-axis slide to slide, which can avoid oil contamination of the composite material.
[0010] In a specific possible implementation scheme, the screw structure is located at the screw installation position on one side of the Z-direction slide, and a dust suction pipe is provided at the screw installation position on the other side of the Z-direction slide, and the dust suction pipe is embedded in the Z-direction slide.
[0011] By adopting the above technical solution, by setting the dust collection pipe at the screw installation position on the other side, on the one hand, the force on each side of the Z-axis structure can be more uniform, the sliding of the Z-axis structure can be improved to be more stable, and on the other hand, the volume of the Z-axis structure can be reduced.
[0012] In a specific possible implementation scheme, a dust cover is provided on the Z-direction ram.
[0013] By adopting the above technical solution and providing a dust cover, dust can be effectively prevented from entering the Z-direction slide.
[0014] In a specific embodiment, the dust cover includes a first cover body and a second cover body, and the first cover body and the second cover body are connected by a connecting piece.
[0015] By adopting the above technical solution and arranging the dust cover to be formed by splicing the first cover body and the second cover body through a connecting piece, the convenience of installing the dust cover can be improved.
[0016] In a specific possible implementation scheme, the connecting member includes a connecting block and a fixing bolt. The connecting block is fixedly arranged on the end face of the first cover body facing the second cover body. The second cover body is provided with a connecting groove for inserting the connecting block on the end face facing the first cover body. The fixing bolt is threadedly connected to the second cover body so that it can be inserted into the connecting groove to fix the connecting block.
[0017] By adopting the above technical solution, when splicing the first cover body and the second cover body, the connecting block on the first cover body is inserted into the connecting groove on the second cover body, and then the connecting block is fixed by fixing bolts, thereby completing the splicing of the first cover body and the second cover body, thereby improving the convenience of splicing the dust cover.
[0018] In a specific possible implementation manner, the connection block is provided with a positioning portion that cooperates with the connection groove.
[0019] By adopting the above technical solution and through the cooperation between the positioning portion and the connecting groove, the accuracy of the installation of the first cover body and the second cover body is improved.
[0020] In a specific feasible implementation scheme, a first guide surface is provided on the connecting block, and a second guide surface that fits with the first guide surface is provided on one end of the fixing bolt inserted into the connecting groove, and the fixing bolt can drive the second guide surface to slide on the first guide surface, so that the connecting block pulls the first cover body and the second cover body to be tightly fixed.
[0021] By adopting the above technical solution, when the first cover body and the second cover body are installed, the fixing bolt pushes the second positioning surface to slide on the first guide surface, thereby tightly fixing the first cover body on the second cover body and reducing the gap between the first cover body and the second cover body.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. When the Z-axis structure is driven, the lead screw structure and two counterweight cylinders simultaneously drive the Z-direction slide to slide along the Z-direction slide rail. If the motor brake in the lead screw structure fails, the Z-direction slide remains stationary under the support of the counterweight cylinder, effectively preventing the Z-axis structure from falling and causing damage to the workpiece, thereby reducing the risk of workpiece damage.
[0024] 2. By configuring the dust cover to be formed by splicing a first cover body and a second cover body through a connector, the convenience of installing the dust cover can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a structural schematic diagram of the Z-axis structure of a composite material processing center according to an embodiment of the present application.
[0026] Figure 2 It is a schematic diagram for showing the structure of the dust cover.
[0027] Figure 3 It is along Figure 2 Sectional view along line AA.
[0028] Figure 4 yes Figure 3 Enlarged view of part B in the middle.
[0029] Explanation of the accompanying reference numerals: 11. Y-axis slide; 12. Y-axis slide rail; 21. Z-axis slide rail; 22. Z-axis slide; 3. Screw structure; 4. Counterweight cylinder; 41. Linear cylinder; 51. Dust suction duct; 52. Dust cover; 521. First cover body; 522. Second cover body; 6. Connecting piece; 61. Connecting block; 611. Positioning portion; 612. Connecting portion; 62. Fixing bolt; 63. Connecting groove; 64. First guide surface; 65. Second guide surface. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-4 This application is described in further detail.
[0031] The embodiments of the present application disclose a Z-axis structure of a composite material processing center.
[0032] Reference Figure 1 A composite material machining center's Z-axis structure includes a Z-axis slide 21 mounted on the center's Y-axis ram 11, and a Z-axis ram 22 slidably mounted on the Z-axis slide 21. The composite material machining center utilizes a five-axis aviation composite material machining machine, a machine with a spindle head capable of moving along five axes. This machine offers the advantages of flexible spindle head movement and high machining precision, enabling machining of multiple surfaces on aviation composite materials. The five-axis aviation composite material machining machine includes an X-axis slide, a Y-axis slide, a Z-axis slide, a C-axis motion arm, and an A-axis motion arm.
[0033] Reference Figure 1 The Y-direction ram 11 is provided with a screw structure 3 connected to the Z-direction ram 22. The screw structure 3 is arranged at a screw mounting location on one side of the Z-direction ram 22 along the Y-direction. The slider of the screw structure 3 is fixedly connected to the Z-direction ram 22. The screw structure 3 is used to drive the Z-direction ram 22 to slide back and forth in the Z-direction. The Y-direction ram 11 is provided with two sets of counterweight cylinders 4, which are respectively located on either side of the Z-direction ram 22 perpendicular to the Y-direction. The piston rods of the two sets of counterweight cylinders 4 are connected to the Z-direction ram 22 to drive the Z-direction ram 22 to slide. To prevent damage to the composite material caused by a leaking hydraulic cylinder, the counterweight cylinder 4 in this embodiment is a linear cylinder 41. The cylinder body of the linear cylinder 41 is fixed to the Y-direction ram 11, and the piston rod is fixedly connected to the Z-direction ram 22. The two sets of linear cylinders 41 and the screw structure 3 jointly drive the Z-direction ram 22 to slide.
[0034] When driving the Z-axis structure, the lead screw structure 3 and two linear cylinders 41 simultaneously drive the Z-direction ram 22 to slide along the Z-direction slide rail 21, achieving drive of the Z-axis structure. The lead screw structure 3 can control the sliding precision of the Z-direction ram 22, and the linear cylinders 41 can withstand the greater weight of the Z-direction ram 22, thereby reducing the weight borne by the lead screw structure 3. If the motor brake in the lead screw structure 3 fails, the Z-direction ram 22, supported by the counterweight cylinder 4, remains stationary, effectively preventing the Z-axis structure from descending and causing damage to the workpiece, thereby reducing the risk of workpiece damage.
[0035] Reference Figure 1 A dust collection duct 51 is provided at the screw rod installation position on the other side of the Z-direction slide 22. The dust collection duct 51 is embedded in the Z-direction slide 22. One end of the dust collection duct 51 is connected to the spindle head dust removal system at the end of the Z-direction slide 22, and the other end is connected to the vacuum generator. The dust generated at the spindle head can flow along the dust collection duct 51. By setting the dust collection duct 51 at the screw rod installation position on the other side, on the one hand, the force on each side of the Z-axis structure can be more uniform, and the sliding of the Z-axis structure can be made more stable. On the other hand, the volume of the Z-axis structure can be reduced. A dust cover 52 is installed on the part of the Z-direction slide 22 below the Y-direction slide rail 12. By setting the dust cover 52, dust can be effectively prevented from entering the Z-direction slide 22.
[0036] Reference Figure 2 、 Figure 3 In this embodiment, the dust cover 52 includes a first cover body 521 and a second cover body 522. The first cover body 521 and the second cover body 522 are connected by a connector 6 to form a dust cover 52.
[0037] Reference Figure 3 、 Figure 4 The connecting piece 6 in this embodiment includes a plurality of connecting blocks 61 and fixing bolts 62. The connecting blocks 61 correspond to the fixing bolts 62 one by one. The plurality of connecting blocks 61 are fixedly arranged on the end surface of the first cover body 521 facing the second cover body 522 and are evenly arranged along the length direction of the first cover body 521. The second cover body 522 is provided with a connecting groove 63 for inserting the connecting block 61 on the end surface facing the first cover body 521. The connecting groove 63 corresponds to the connecting block 61 one by one. The connecting block 61 includes a positioning portion 611 and a connecting portion 612. When the connecting block 61 is inserted into the connecting groove 63, the positioning portion 611 fits into the groove wall of the connecting groove 63, thereby completing the installation and positioning between the first cover body 521 and the second cover body 522, improving the installation accuracy of the first cover body 521 and the second cover body 522, and at the same time effectively avoiding the shaking between the first cover body 521 and the second cover body 522, thereby improving the stability of the connection between the first cover body 521 and the second cover body 522. The fixing bolt 62 is threadedly connected to the second cover 522 , and one end of the fixing bolt 62 is inserted into the connecting groove 63 .
[0038] Reference Figure 3 、 Figure 4 A first guide surface 64 is provided on the connecting portion 612, and the first guide surface 64 is opposite to the fixing bolt 62. The distance from the first guide surface 64 to the first cover body 521 gradually decreases from the side of the connecting portion 612 toward the fixing bolt 62 to the side away from the fixing bolt 62. The fixing bolt 62 is provided with a second guide surface 65 at one end inserted into the connecting groove 63. The second guide surface 65 is a conical surface. The second guide surface 65 and the first guide surface 64 are fitted and slid. When the second guide surface 65 and the first guide surface 64 are fitted and slid, the connecting block 61 pulls the first cover body 521 and the second cover body 522 to be tightly fixed.
[0039] When the first cover 521 and the second cover 522 are installed, the fixing bolt 62 pushes the second positioning surface to slide on the first guide surface 64, thereby firmly fixing the first cover 521 on the second cover 522 and reducing the gap between the first cover 521 and the second cover 522.
[0040] The implementation principle of the Z-axis structure of a composite material machining center in the present embodiment is as follows: when driving the Z-axis structure, the screw structure 3 and two linear cylinders 41 simultaneously drive the Z-direction slide 22 to slide along the Z-direction slide rail 21 to achieve drive of the Z-direction structure. The screw structure 3 can control the sliding precision of the Z-direction slide 22, and the linear cylinders 41 can withstand the greater weight of the Z-direction slide 22, thereby reducing the weight borne by the screw structure 3. When the motor brake in the screw structure 3 fails, the Z-direction slide 22 remains stationary under the support of the counterweight cylinder 4, effectively preventing the Z-direction structure from falling and causing damage to the workpiece, thereby reducing the risk of workpiece damage.
[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A Z-axis structure for a composite material machining center, characterized by: The invention comprises a Z-direction slide rail (21) arranged on a Y-direction slide rail (11) of a composite material processing center and a Z-direction slide rail (22) slidably arranged on the Z-direction slide rail (21); the Y-direction slide rail (11) is provided with a screw rod structure (3) connected to the Z-direction slide rail (22); the screw rod structure (3) is used to drive the Z-direction slide rail (22) to slide back and forth along the Z-direction; the Y-direction slide rail (11) is provided with two groups of counterweight cylinders (4); the two groups of counterweight cylinders (4) are respectively located on both sides of the Z-direction slide rail (22) perpendicular to the Y-direction; the piston rods of the two groups of counterweight cylinders (4) are connected to the Z-direction slide rail (22) so as to be able to drive the Z-direction slide rail (22) to slide.
2. The Z-axis structure of the composite material processing center according to claim 1, characterized in that: The counterweight cylinder (4) is a linear cylinder (41).
3. The Z-axis structure of the composite material processing center according to claim 1, characterized in that: The screw rod structure (3) is located at a screw rod installation position on one side of the Z-direction slide (22), and a dust suction pipe (51) is provided at a screw rod installation position on the other side of the Z-direction slide (22), and the dust suction pipe (51) is embedded in the Z-direction slide (22).
4. The Z-axis structure of a composite material processing center according to claim 1, characterized in that: A dust cover (52) is provided on the Z-direction ram (22).
5. The Z-axis structure of the composite material processing center according to claim 4, characterized in that: The dust cover (52) comprises a first cover body (521) and a second cover body (522), and the first cover body (521) and the second cover body (522) are connected via a connecting piece (6).
6. The Z-axis structure of the composite material processing center according to claim 5, characterized in that: The connecting member (6) comprises a connecting block (61) and a fixing bolt (62); the connecting block (61) is fixedly arranged on the end surface of the first cover body (521) facing the second cover body (522); a connecting groove (63) for inserting the connecting block (61) is provided on the end surface of the second cover body (522) facing the first cover body (521); the fixing bolt (62) is threadedly connected to the second cover body (522) so as to be inserted into the connecting groove (63) to fix the connecting block (61).
7. The Z-axis structure of the composite material processing center according to claim 6, characterized in that: The connecting block (61) is provided with a positioning portion (611) that matches the connecting groove (63).
8. The Z-axis structure of a composite material processing center according to claim 6, characterized in that: The connecting block (61) is provided with a first guide surface (64), and the fixing bolt (62) is provided with a second guide surface (65) on one end inserted into the connecting groove (63), which is in contact with the first guide surface (64). The fixing bolt (62) can drive the second guide surface (65) to slide on the first guide surface (64), so that the connecting block (61) pulls the first cover body (521) and the second cover body (522) to be tightly fixed.