3D powder laying printing special-shaped thin-walled pipe product machining control deformation clamp device

Abstract

The utility model relates to the technical field of machining, and specifically is a lathe clamp device for machining control deformation of 3D powder laying printing special-shaped thin-walled pipe products, comprising a positioning base, the inner wall surface of the positioning base is provided with a notch for limiting, and a positioning slider for limiting the special-shaped thin-walled pipe is inserted into the inner side of the notch; during use of the lathe clamp device for machining control deformation of 3D powder laying printing special-shaped thin-walled pipe products, the positioning base is directly fastened with the lathe chuck jaw, and the clamping and dismounting of parts can be completed by only loosening the inner hexagonal screw rod each time, thereby saving clamping time, realizing quick change clamping alignment of workpieces, and providing strong support for quick change clamping of batch product machining (at least 15 minutes of clamping alignment time is saved each time), and multi-point distributed clamping solves the problem of machining deformation of 3D powder laying printing special-shaped thin-walled pipe parts.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a clamping device for controlling deformation during machining of 3D powder-printed irregular thin-walled tube products. Background Technology

[0002] In the field of machining, there exists a type of 3D powder-printed irregular thin-walled tubular structure with thin walls and strict diameter tolerances. During the machining clamping process, the part deforms due to clamping. That is, the part is machined while clamped, and after machining, it is removed. The clamping force applied during clamping causes deformation. Machining the part while it is deformed means that when the external clamping force is removed, the part immediately deforms again. The amount of deformation is affected by the clamping position and the magnitude of the clamping force, and the magnitude of the deformation directly determines the final machining quality of the part. Therefore, controlling the amount of deformation has become a major challenge in machining this type of part. In most cases in China, adhesive or fully enclosed flexible supports are generally used to clamp the parts. The existing drawbacks of several solutions are as follows: (1) Using adhesive to clamp the parts, the clamping force is almost zero, which can produce qualified parts. However, the waiting time for adhesive and the time for removing adhesive are long (equal to the processing time), and the operation is more complicated, which directly affects the product processing efficiency and cost. (2) Using a fully enclosed flexible support to clamp the parts can control the deformation of the parts within a certain range. However, the processing cost of this tooling is high (8-10 times the cost of general tooling), and the clamping and alignment of the parts takes a long time (0.5 times longer than the clamping time of special tooling), which is not friendly to batch processing. (3) Using traditional special tooling for clamping, the tooling clamping adopts two separate structures of upper and lower pressure blocks. Each clamping requires clamping all three together and then clamping and aligning with the lathe chuck jaws, which takes a long time. (4) Most importantly, different support points and force application points will produce different results in the deformation of the parts during clamping. Basically, support points and clamping points are randomly selected, multiple toolings are processed, and multiple tests are conducted to verify the feasibility of the tooling. The processing cost and test cycle are long, and the investment cost is large. Moreover, this method has a certain element of luck. It may obtain a solution that meets the processing requirements, but it is not the optimal solution. Therefore, we propose a machining clamping device for controlling the deformation of 3D powder-printed irregular thin-walled tube products. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides a clamping device for controlling the deformation during machining of 3D powder-printed irregular thin-walled tube products.

[0004] The technical solution adopted by this utility model to solve its technical problem is a machining clamping device for controlling the deformation of 3D powder-printed irregular thin-walled tube products. It includes a positioning base, the inner wall surface of which is provided with a groove for limiting, and a positioning slider for limiting the irregular thin-walled tube is inserted into the inner side of the groove. The outer wall surface of the positioning base is screwed with an internal hexagonal screw that is rotatably connected to the positioning slider. The inner wall surface of the positioning base is provided with an adjustment groove, and an adjustment slide plate is slidably installed inside the groove. The top surface of the slide plate is bolted with a slide seat for auxiliary clamping, and an expansion pin for limiting the irregular thin-walled tube is installed inside the slide seat. The outer wall surface of the positioning base is bolted with a baffle for limiting the slide groove, and a lead screw that is screwed to the slide plate is rotatably installed between the baffle and the slide groove. A worm gear for transmission is assembled on the outer periphery of the lead screw, and a worm gear that meshes with the worm gear is rotatably installed on the inner side of the positioning base. A hexagonal swivel seat that is driven by the worm gear is rotatably installed on the outer wall surface of the positioning base.

[0005] By adopting the above technical solution, in the process of using the lathe clamping equipment for controlling the deformation of 3D powder-printed irregular thin-walled tube products during machining, the positioning base is directly fastened to the lathe chuck jaws. Each time, only the internal hexagonal screw needs to be tightened or loosened to complete the clamping and unclamping of the parts, saving one clamping time and realizing quick clamping and alignment of the workpiece. Furthermore, the application of the L-shaped positioning base, expansion pin, and positioning slider provides strong support for quick clamping of batch products (saving at least 15 minutes of clamping and alignment time each time). Moreover, the multi-point distributed clamping solves the problem of excessive deformation during machining of 3D powder-printed irregular thin-walled tube parts. When clamping and limiting the shape of the thin-walled tube, the tube can be easily placed between the positioning slider and the slide block. Then, the internal hexagon screw on the outer circumference of the positioning base is rotated and screwed into the positioning base. This allows the internal hexagon screw to push the positioning slider in the slot and move it. The outer end face of the positioning slider fits into the outer circumference of the thin-walled tube, which facilitates clamping and limiting the shape and makes subsequent processing easier. During the use of the positioning base, the hexagonal swivel on the outside of the positioning base can be rotated, which in turn drives the worm gear inside the positioning base to rotate. This allows the worm gear to mesh with the worm wheel on the outer periphery of the lead screw and drive the worm wheel to rotate. Subsequently, the worm wheel drives the lead screw to rotate, allowing the lead screw to screw into the sliding plate inside the slide groove. Under the screwing force, the lead screw moves along the slide groove, allowing the position of the slide to be adjusted. This facilitates adjusting the distance between the slide and the positioning slider according to the specifications of the shaped thin-walled tube. It also facilitates the quick clamping of the shaped thin-walled tube using the positioning slider and the expansion pin on the slide, thereby expanding the clamping range of the shaped thin-walled tube on the surface of the positioning base. Specifically, the inner wall surface of the positioning base is provided with a T-shaped groove for limiting the position, and the outer wall surface of the slide is integrally constructed with a T-shaped block that fits the T-shaped groove.

[0006] By adopting the above technical solution, the T-block and the T-slot fit together and slide together, which facilitates the improvement of the stability of the slide when it slides, and makes the structure of the slide and its surface more stable to use.

[0007] Specifically, the top surface of the skateboard has an integrally formed U-shaped block that fits into the slide seat.

[0008] By adopting the above technical solution, the U-shaped block at the top of the skateboard can fit into the groove at the bottom of the slide block, which facilitates the stability of the connection between the skateboard and the slide block, enabling it to be used more stably.

[0009] Specifically, the expansion pin power input end is provided with an internal hexagon screw, and a nut body for auxiliary limiting is screwed onto the outer periphery of the internal hexagon screw.

[0010] By adopting the above technical solution, the internal hexagon screw can easily provide power to the expansion pin and enable it to expand, which is convenient for auxiliary limiting of irregular thin-walled tubes. The nut body on the outer periphery of the internal hexagon screw can easily provide auxiliary locking and limiting, so that the internal hexagon screw can be used more stably.

[0011] Specifically, the outer wall surface of the positioning base is coated with scale lines corresponding to the slide.

[0012] By adopting the above technical solution, the scale lines on the outer periphery of the positioning base allow personnel to more clearly understand the distance between the slide and the positioning slide, making it convenient to adjust the position of the slide.

[0013] Specifically, the top surface of the positioning base is fitted with a fixing block for limiting the positioning slider by bolts.

[0014] By adopting the above technical solution, the fixing block on the surface of the positioning base can conveniently assist in limiting the positioning slider that slides in the slot, so that it can slide and move more stably in the slot. The fixing block is also easy to disassemble and assemble, which facilitates the maintenance or replacement of the positioning slider in the slot.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The technical solution of this application, through the design of slots, positioning sliders, internal hexagonal screws, slides, slide plates, slide seats, and expansion pins, utilizes a positioning base directly fastened to the lathe chuck jaws during the machining of 3D powder-printed irregular thin-walled tube products. Each time, only the internal hexagonal screw needs to be tightened or loosened to complete the clamping and unclamping of the parts, saving one clamping time and realizing quick workpiece change clamping and alignment. Furthermore, the application of L-shaped positioning bases, expansion pins, and positioning sliders provides strong support for quick clamping of batch products (saving at least 15 minutes of clamping and alignment time each time). Moreover, multi-point distributed clamping solves the problem of excessive deformation during machining of 3D powder-printed irregular thin-walled tube parts. When clamping and limiting the shape of a thin-walled tube, the tube can be easily placed between the positioning slider and the slide block. Then, the internal hexagonal screw on the outer circumference of the positioning base is rotated and screwed into the positioning base. This allows the internal hexagonal screw to push the positioning slider in the slot and move it. The outer end face of the positioning slider fits into the outer circumference of the thin-walled tube, which facilitates clamping and limiting the shape and makes subsequent processing easier.

[0016] 2. The technical solution of this application, through the design of baffle, lead screw, worm gear, worm, and hexagonal swivel, allows the hexagonal swivel on the outside of the positioning base to rotate during use, thereby driving the worm inside the positioning base to rotate. This enables the worm to mesh with the worm gear on the outer periphery of the lead screw, driving the worm gear to rotate. Subsequently, the worm gear drives the lead screw to rotate, allowing the lead screw to engage with the sliding plate inside the groove. Under the force of the engagement, the lead screw moves along the groove, allowing the position of the slide to be adjusted. This facilitates adjusting the distance between the slide and the positioning slider according to the specifications of the shaped thin-walled tube, and allows for the rapid clamping of the shaped thin-walled tube using the positioning slider and the expansion pin on the slide, thereby expanding the clamping range of the shaped thin-walled tube on the surface of the positioning base. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is an isometric view of the present invention; Figure 2 This is a schematic diagram of the inner structure of the plate base of this utility model; Figure 3 This is a schematic diagram of the frame structure of this utility model; In the diagram: 1. Positioning base; 2. Groove; 3. Positioning slider; 4. Socket hex screw; 5. Slide groove; 6. Slide plate; 7. U-shaped block; 8. Slide seat; 9. Expansion pin; 10. Baffle; 11. Lead screw; 12. Worm gear; 13. Worm; 14. Hexagonal swivel; 15. Socket hex screw; 16. Nut body; 17. Fixing block; 18. T-slot; 19. T-block; 20. Scale line. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figure 1-3 This utility model provides a technical solution: a clamping device for controlling the deformation of 3D powder-printed irregular thin-walled tube products during machining, including a positioning base 1. The inner wall surface of the positioning base 1 has a groove 2 for limiting positioning, and a positioning slider 3 for limiting the irregular thin-walled tube is inserted into the groove 2. An internal hexagonal screw 4, rotatably connected to the positioning slider 3, is screwed onto the outer wall surface of the positioning base 1. An adjustment groove 5 is formed on the inner wall surface of the positioning base 1, and an adjustment slide plate 6 is slidably installed inside the groove 5. The top of the slide plate 6... The positioning base 1 is bolted to a slide block 8 for auxiliary clamping, and an expansion pin 9 for limiting the shape of the thin-walled tube is mounted on the inner side of the slide block 8. The outer wall surface of the positioning base 1 is bolted to a baffle 10 for limiting the slide groove 5, and a lead screw 11 that is screwed to the slide plate 6 is rotatably installed between the baffle 10 and the slide groove 5. A worm gear 12 for transmission is mounted on the outer periphery of the lead screw 11, and a worm 13 that meshes with the worm gear 12 is rotatably installed on the inner side of the positioning base 1. A hexagonal swivel seat 14 that is rotatably connected to the worm 13 is rotatably installed on the outer wall surface of the positioning base 1.

[0021] In use, during the machining of 3D powder-printed irregular thin-walled tube products, the positioning base 1 is directly fastened to the lathe chuck jaws. Each time, only the internal hexagonal screw 4 needs to be tightened or loosened to complete the clamping and unclamping of the parts, saving one clamping time and realizing quick clamping and alignment of the workpiece. The application of L-shaped positioning base 1, expansion pin 9 and positioning slider 3 provides strong support for quick clamping of batch products (saving at least 15 minutes of clamping and alignment time each time). Moreover, multi-point distributed clamping solves the problem of excessive deformation of 3D powder-printed irregular thin-walled tube parts during machining. When clamping the irregular thin-walled tube, it is convenient to place the irregular thin-walled tube between the positioning slider 3 and the slide 8. Then, rotate the internal hexagon screw 4 on the outer periphery of the positioning base 1 and screw it into the positioning base 1. This allows the internal hexagon screw 4 to push the positioning slider 3 in the slot 2 and make it move. The outer end face of the positioning slider 3 fits into the outer periphery of the irregular thin-walled tube, which is convenient for clamping and limiting the tube and facilitates subsequent processing. During the use of the positioning base 1, the hexagonal swivel 14 on the outside of the positioning base 1 can be rotated and the worm 13 inside the positioning base 1 can be rotated, so that the worm 13 can mesh with the worm wheel 12 on the outer periphery of the lead screw 11 and drive the worm wheel 12 to rotate. Then the worm wheel 12 can easily drive the lead screw 11 to rotate, so that the lead screw 11 can be screwed with the sliding plate 6 sliding inside the slide groove 5 and move along the slide groove 5 under the screwing force, so that the position of the slide 8 can be adjusted. It is convenient to adjust the distance between the slide 8 and the positioning slider 3 according to the specifications of the special-shaped thin-walled tube, and facilitate the quick clamping of the special-shaped thin-walled tube using the positioning slider 3 and the expansion pin 9 on the slide 8, thereby expanding the clamping range of the special-shaped thin-walled tube on the surface of the positioning base 1. like Figure 1 and Figure 3 As shown, the inner wall surface of the positioning base 1 is provided with a T-shaped groove 18 for limiting the position, and the outer wall surface of the slide 8 is integrally constructed with a T-shaped block 19 that fits the T-shaped groove 18.

[0022] When in use, the T-block 19 and the T-slot 18 fit together and slide together, which helps to improve the stability of the slide block 8 when it slides, so that the slide block 8 and its surface structure can be used more stably.

[0023] like Figure 2 As shown, the top surface of the slide plate 6 has an integrally constructed U-shaped block 7 that fits into the slide base 8.

[0024] When in use, the U-shaped block 7 on the top of the slide plate 6 can fit into the groove on the bottom of the slide block 8, which can improve the stability of the connection between the slide plate 6 and the slide block 8, and make it more stable to use.

[0025] like Figure 1 and Figure 3 As shown, the power input end of the expansion pin 9 is provided with an internal hexagon screw 15, and the outer periphery of the internal hexagon screw 4 is screwed with a nut body 16 for auxiliary positioning.

[0026] When in use, the internal hex screw 15 provides power to the expansion pin 9 and enables it to expand, which facilitates auxiliary positioning of the irregular thin-walled tube. The nut body 16 on the outer periphery of the internal hex screw 4 facilitates auxiliary locking and positioning, so that the internal hex screw 4 can be used more stably.

[0027] like Figure 1 As shown, the outer wall surface of the positioning base 1 is coated with scale lines 20 corresponding to the slide 8.

[0028] When in use, the scale lines 20 on the outer periphery of the positioning base 1 allow personnel to more clearly understand the distance between the slide 8 and the positioning slide, making it convenient to adjust the position of the slide 8.

[0029] like Figure 1 As shown, the top surface of the positioning base 1 is fitted with a fixing block 17 for limiting the positioning slider 3 by bolts.

[0030] When in use, the fixing block 17 on the surface of the positioning base 1 can help limit the positioning slider 3 that slides in the slot 2, so that it can slide and move more stably in the slot 2. The fixing block 17 is easy to disassemble and assemble, which makes it easy to maintain or replace the positioning slider 3 in the slot 2.

[0031] The working principle and usage process of this utility model are as follows: In use, first, install the corresponding structural components in the appropriate positions. During the machining and deformation control of 3D powder-printed irregular thin-walled tube products, the positioning base 1 is directly fastened to the lathe chuck jaws. Each time, only the internal hexagonal screw 4 needs to be tightened or loosened to complete the clamping and unclamping of the parts, saving one clamping time and realizing quick workpiece change clamping and alignment. Furthermore, the application of the L-shaped positioning base 1, expansion pin 9, and positioning slider 3 provides strong support for quick clamping in batch product processing (saving at least 15 minutes of clamping and alignment time each time). The multi-point distributed clamping solves the problem of excessive deformation during machining of 3D powder-printed irregular thin-walled tube parts. Simultaneously, when limiting and clamping the irregular thin-walled tube, it is convenient to place the tube between the positioning slider 3 and the slide 8. Then, rotate the internal hexagonal screw 4 on the outer circumference of the positioning base 1 to rotate and engage with the positioning base 1, thus achieving the desired clamping and alignment. The screw 4 can push the positioning slider 3 in the slot 2 and make it move. The outer end face of the positioning slider 3 fits with the outer periphery of the special-shaped thin-walled tube, which is convenient for limiting and clamping it, and facilitates subsequent processing. At the same time, before using the positioning base 1, the hexagonal rotating seat 14 on the outside of the positioning base 1 can be rotated and the worm 13 inside the positioning base 1 can be rotated. This allows the worm 13 to mesh with the worm wheel 12 on the outer periphery of the lead screw 11 and drive the worm wheel 12 to rotate. Then the worm wheel 12 can drive the lead screw 11 to rotate, so that the lead screw 11 can be screwed with the sliding plate 6 sliding inside the slide groove 5 and move along the slide groove 5 under the screwing force. This allows the position of the slide 8 to be adjusted, which is convenient for adjusting the distance between the slide 8 and the positioning slider 3 according to the specifications of the special-shaped thin-walled tube. This facilitates the quick clamping of the special-shaped thin-walled tube using the positioning slider 3 and the expansion pin 9 on the slide 8, thereby expanding the clamping range of the special-shaped thin-walled tube on the surface of the positioning base 1. Simultaneously, the computer can analyze the static structure of the parts, obtain data on the influence of different positions on the deformation of the parts, and obtain a variety of excellent clamping schemes for the parts based on the data trends. At the same time, combined with the actual situation, the unstable factors on site are brought into the results, and finally the optimal solution is obtained. Then, the tooling can be put into production and applied to actual processing, thereby saving the cost of multiple trials and errors. Compared with flexible tooling clamping, this tooling has a simple structure and low manufacturing cost.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lathe clamping device for controlling deformation of a 3D powder laying printing special-shaped thin-walled pipe product machine, characterized in that, The system includes a positioning base (1), the inner wall surface of which is provided with a slot (2) for limiting, and a positioning slider (3) for limiting the irregular thin-walled tube is inserted into the inner side of the slot (2). The outer wall surface of the positioning base (1) is screwed with an internal hexagonal screw (4) that is rotatably connected to the positioning slider (3). The inner wall surface of the positioning base (1) is provided with an adjustment groove (5). The inner side of the groove (5) is slidably installed with an adjustment slide plate (6). The top surface of the slide plate (6) is bolted with a slide seat (8) for auxiliary clamping. The inner side of the slide seat (8) is equipped with an expansion pin (9) for limiting the irregular thin-walled tube. The outer wall surface of the positioning base (1) is bolted with a baffle (10) for limiting the slide groove (5), and a screw (11) that is screwed to the slide plate (6) is rotatably installed between the baffle (10) and the slide groove (5). A worm gear (12) for transmission is mounted on the outer periphery of the screw (11), and a worm (13) that meshes with the worm gear (12) is rotatably installed on the inner side of the positioning base (1). A hexagonal swivel (14) that is transmission-connected to the worm (13) is rotatably installed on the outer wall surface of the positioning base (1).

2. The 3D powder laying printing special-shaped thin-walled pipe product machine deformation control vehicle clamp device according to claim 1, characterized in that, The inner wall surface of the positioning base (1) is provided with a T-shaped groove (18) for limiting the position, and the outer wall surface of the slide (8) is integrally constructed with a T-shaped block (19) that fits the T-shaped groove (18).

3. The 3D powder laying printing special-shaped thin-walled pipe product machine deformation control vehicle clamp device according to claim 1, characterized in that, The top surface of the slide plate (6) is integrally constructed with a U-shaped block (7) that fits into the slide seat (8).

4. The 3D powder laying printing special-shaped thin-walled pipe product machine deformation control vehicle clamp device according to claim 1, characterized in that, The expansion pin (9) is equipped with an internal hexagon screw (15) at its power input end, and the internal hexagon screw (4) is screwed with a nut body (16) for auxiliary positioning.

5. The 3D powder laying printing special-shaped thin-walled pipe product machine deformation control vehicle clamp device according to claim 1, characterized in that, The outer surface of the positioning base (1) is coated with scale lines (20) corresponding to the slide (8).

6. The 3D powder spreading printing special-shaped thin-walled pipe product machine deformation control vehicle clamp device according to claim 1, characterized in that, The top surface of the positioning base (1) is fitted with a fixing block (17) for limiting the positioning slider (3) by bolts.

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