Thin-shell product shaping device

Abstract

The utility model relates to the field of workpiece shaping, and discloses a thin-shell product shaping device which comprises a base, a workpiece fixing mechanism arranged on the base and a shaping executing mechanism arranged on the base, and the workpiece fixing mechanism is provided with a positioning space for installing a workpiece and positioning the workpiece; the shaping executing mechanism is located below the positioning space and comprises a shaping part which can penetrate into a workpiece inner cavity in the positioning space and conduct extrusion shaping on the inner wall of the workpiece. According to the thin-shell product shaping device, after a workpiece is fixed through the workpiece fixing mechanism, the shaping executing mechanism is matched with the workpiece fixing mechanism and penetrates into the inner side of the workpiece to extrude and shape the workpiece, the integrity of the appearance of the workpiece is guaranteed, the shaping range is accurately controlled, and it is guaranteed that errors are within a reasonable range.

Description

Technical Field

[0001] This utility model relates to the field of workpiece shaping, and in particular to a shaping device for thin-shell products. Background Technology

[0002] Workpiece shaping is a process that uses mechanical or thermal means to correct or refine pre-formed workpieces. It mainly addresses issues such as deformation, springback, and dimensional deviations caused by processes like stamping, bending, and casting, ultimately improving the shape accuracy, dimensional stability, and surface quality of the workpiece.

[0003] Thin-shell products refer to lightweight workpieces with a wall thickness to diameter (or main dimension) ratio of less than 1:20, commonly found in aerospace, automotive, and precision electronics industries. Due to design requirements, the openings of some thin-shell products need to have an error margin of less than a certain value, such as 0.05mm. However, because the products are thin, mold adjustments are difficult, inefficient, and costly. Furthermore, since some thin-shell products are exterior parts, external shaping can easily cause scratches and abrasions. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a thin-shell product shaping device to solve the problem of difficult shaping and adjustment of thin-shell products.

[0005] To solve the above-mentioned technical problems, the present invention provides a thin-shell product shaping device including a base, a workpiece fixing mechanism disposed on the base, and a shaping execution mechanism disposed on the base. The workpiece fixing mechanism has a positioning space for installing and positioning the workpiece therein. The shaping execution mechanism is located below the positioning space and includes a shaping part that can penetrate into the inner cavity of the workpiece in the positioning space and squeeze and shape the inner wall of the workpiece.

[0006] Furthermore, the workpiece fixing mechanism includes a clamping part mounted on the base for clamping and positioning the workpiece, and an abutting part movably connected to the base and located above the clamping part for abutting the top of the workpiece. The positioning space is formed by the clamping part and the abutting part together.

[0007] Furthermore, the clamping part includes a fixing block fixedly mounted on the base and a side push structure movably mounted on the base in a transverse direction and disposed opposite to the fixing block. A clamping cavity adapted to the outer contour of the workpiece is formed between the fixing block and the side push structure. The side push structure includes a connecting block fixedly mounted on the base, a side push block slidably disposed on the connecting block in a transverse direction and capable of approaching or moving away from the fixing block, a push-pull rod connected to the side push block and capable of moving in a transverse direction relative to the connecting block, and a first spring connected between the side push block and the connecting block for pushing the side push block toward the fixing block. The clamping cavity is formed between the fixing block and the side push block.

[0008] Furthermore, the supporting part includes an upper pressure plate that is vertically movably disposed on the base and located above the clamping part, and a first driving member that is mounted on the base and connected to the upper pressure plate. The first driving member is used to drive the upper pressure plate to move up and down during operation to approach or move away from the clamping part, and the positioning space is located below the upper pressure plate.

[0009] Furthermore, the supporting part also includes a limiting post fixedly mounted on the base, the top height of the limiting post corresponding to the top height of the workpiece; the upper pressure plate has a supporting block for abutting downward against the limiting post.

[0010] Furthermore, the shaping actuator includes a transmission part mounted on the base and located directly below the positioning space, and a drive part for driving the transmission part to operate. The shaping part is mounted on the base and cooperates with the transmission part to extrude and shape the workpiece.

[0011] Furthermore, the transmission part includes a connecting plate vertically movably connected to the base, a pin fixedly connected to the top surface of the connecting plate and located directly below the positioning space, and a transmission coupling component connected to the connecting plate. The driving part and the transmission coupling component are driven to move the connecting plate up and down. The shaping part is used to cooperate with the pin to squeeze the workpiece when the pin moves upward.

[0012] Furthermore, the driving unit includes a conical block that is slidably disposed on the base in a direction perpendicular to the vertical and has an inclined surface on its top surface, and a second driving member mounted on the base for driving the conical block to slide; the transmission coupling member includes a roller fixedly connected to the bottom of the connecting plate and in contact with the inclined surface, and a second spring connected between the connecting plate and the base to elastically push the connecting plate towards the inclined surface in a vertical direction, wherein the second driving member drives the conical block to move so that the roller moves up or down.

[0013] Furthermore, a horizontal support plate is provided on the base, the workpiece fixing mechanism is installed on the upper surface of the horizontal support plate, and the shaping execution mechanism is provided on the lower surface of the horizontal support plate; the shaping part includes a first side pushing part and a second side pushing part arranged symmetrically, the inner ends of the first side pushing part and the second side pushing part abut against each other to form a pushing space, and the pushing space is vertically aligned with the moving path of the ejector pin; when the ejector pin moves upward, its top end pushes the first side pushing part and the second side pushing part to separate to both sides through the pushing space, so as to squeeze the inner wall of the workpiece from the opposite direction.

[0014] Furthermore, both the first and second side-pushing portions include a sleeve fixedly connected to the bottom surface of the horizontal support plate, a slider slidably connected to the sleeve laterally, a third spring connected to the horizontal support plate and facing inward for elastic support of the slider, and a shaping block fixedly connected to the slider and moving through the horizontal support plate to enter the positioning space. The outer shape of the two shaping blocks is consistent with the inner cavity contour of the workpiece opening side so that the workpiece opening side can be fitted onto it. A connected pushing space is formed between the two sliders and the two shaping blocks of the first and second side-pushing portions. The top of the ejector pin has a tapered end that gradually narrows upward and aligns with the pushing space. The bottom diameter of the tapered end is larger than the size of the pushing space. When the ejector pin moves upward, the tapered end squeezes the pushing space so that the two shaping blocks and the two sliders move in opposite directions.

[0015] The thin-shell product shaping device of this utility model has at least the following beneficial effects: after the workpiece is fixed by the workpiece fixing mechanism, the shaping execution mechanism cooperates with it to squeeze and shape the workpiece by penetrating the inside of the workpiece, ensuring the integrity of the workpiece's appearance, and controlling the shaping range more accurately to ensure that the error is within a reasonable range. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the shaping device of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the shaping device (hidden front panel) of this utility model from another angle;

[0019] Figure 3 for Figure 2 A schematic diagram of the shaping device (hidden base) shown;

[0020] Figure 4 for Figure 3 Front sectional view of the shaping device shown;

[0021] Figure 5 for Figure 4 An enlarged view of part A shown;

[0022] Figure 6 This is a schematic diagram of the workpiece fixing mechanism and the shaping execution mechanism of this utility model;

[0023] Figure 7 This is a schematic diagram of the horizontal support plate and clamping part of this utility model;

[0024] Figure 8 This is a schematic diagram of the horizontal support plate and the shaping actuator of this utility model.

[0025] The meanings of the labels in the attached diagram are as follows:

[0026] Workpiece 1, Base 2, Outer shell 21, Support platform 211, Second auxiliary block 212, Limiting block 213, Stand 22, Side plate 221, Top plate 222, Horizontal support plate 223, Front side plate 224, Support column 225, First linear guide rail 226, Slide rod 227, Movable hole 228, Third auxiliary block 229, Control unit 23, Button part 231, Pressure regulating valve 232, Grating 24, Grating frame 25, Workpiece fixing mechanism 3, Clamping part 31, Fixing block 311, First fixing section 3111, First extension section 3112, First arc groove 3113, Side push structure 312, Connecting block 3121, Side push block 3122, First sliding end 31221, Second fixing section 31222, Second extension section 31223, Push-pull rod 3123, First spring 3124, Slide Moving groove 3125, first sliding hole 3126, second arc groove 3127, clamping cavity 313, supporting part 32, upper pressure plate 321, supporting block 3211, first driving member 322, limiting post 323, positioning space 33, shaping execution mechanism 4, transmission part 41, connecting plate 411, guide rod 4111, first auxiliary block 4112, groove 4113, ejector pin 412, conical end 4121, roller 413, second spring 414, driving part 42, conical block 421, inclined surface 4211, second driving member 422, shaping part 43, first side push part 43a, second side push part 43b, pushing space 431, sleeve 432, second sliding hole 4321, slider 433, second sliding end 4331, thickened end 4332, third spring 434, shaping block 435. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] This utility model is used for shaping and processing thin-shell products. As one of the adaptable workpieces 1, the thickness of workpiece 1 is about 0.8mm, and the area to be shaped is the open side of workpiece 1, and the width of its inner cavity is about 16.39mm.

[0029] Please see Figures 1 to 8 The thin-shell product shaping device of this utility model includes a base 2, a workpiece fixing mechanism 3 disposed on the base 2, and a shaping execution mechanism 4 disposed on the base 2 and located below the workpiece fixing mechanism 3. The workpiece fixing mechanism 3 is used to clamp and fix the workpiece 1, so that the shaping execution mechanism 4 can align with the interior of the workpiece 1 and penetrate into it. The shaping execution mechanism 4 achieves the purpose of compression shaping by squeezing the inner wall of the workpiece 1, thus completing the shaping without damaging the shape of the workpiece 1 and ensuring its integrity.

[0030] Please see Figure 1 and Figure 2 In this embodiment, the base 2 includes a box-shaped outer shell 21, a frame 22 disposed on the top surface of the outer shell 21, and a control unit 23 disposed on the outer shell 21. The top of the outer shell 21 has a horizontal support platform 211, and the frame 22 is fixedly connected to the support platform 211. A cavity is formed inside the outer shell 21. The frame 22 includes three side plates 221 and a top plate 222 fixedly connected to the support platform 211 at the bottom. The three side plates 221 are connected sequentially to form a U-shape. The three side plates 221 of the top plate 222 are respectively connected to the three side plates 221 to open the front of the frame 22 for operation of the workpiece 1, etc. The workpiece fixing mechanism 3 and the shaping execution mechanism 4 are both disposed in the space inside the frame 22. The control unit 23 includes a controller installed inside the housing 21, a power supply installed inside the housing 21, a button section 231 installed on the outer wall of the housing 21 and electrically connected to the power supply and the controller, a time relay and a pressure regulating valve 232 installed on the housing 21, etc. The button section 231 includes a power switch, an emergency stop switch and a dual control button, etc., for controlling the opening and closing of the workpiece fixing mechanism 3 and the shaping execution mechanism 4.

[0031] Please see Figures 1 to 7 In this embodiment, the workpiece fixing mechanism 3 includes a clamping part 31 mounted on the frame 22 and a supporting part 32 movably mounted on the top plate 222. The clamping part 31 is used to clamp and position the workpiece 1, and the supporting part 32 is located above the clamping part 31 and is used to press down to support the top of the workpiece 1. A positioning space 33 is formed between the clamping part 31 and the supporting part 32 for mounting the workpiece 1 therein, so that the workpiece 1 can be positioned by the cooperation of the clamping part 31 and the supporting part 32, so that the shaping execution mechanism 4 can shape the workpiece 1. It should be noted that the workpiece fixing mechanism 3 is not limited to this embodiment, and other embodiments can be used instead, such as the workpiece fixing mechanism 3 including a robot arm or gripper mounted on the frame 22.

[0032] In this embodiment, the clamping part 31 includes a fixing block 311 fixedly installed on the frame 22 of the base 2 and a side-push structure 312 movably installed on the frame 22 in a transverse direction and disposed opposite to the fixing block 311. A clamping cavity 313 adapted to the outer contour of the workpiece 1 is formed between the fixing block 311 and the side-push structure 312. The fixing block 311 is used to hold the workpiece 1 at a fixed point, and the side-push structure 312 is used to hold the workpiece 1 dynamically. This facilitates the installation and positioning of the workpiece 1, and the elastic holding adaptation can greatly reduce the squeezing of the workpiece 1, reducing or even avoiding the possibility of the workpiece 1 being clamped and deformed.

[0033] In this embodiment, the fixing block 311 and the side-pushing structure 312 can be fixedly connected to the side plate 221, but the stability is relatively poor. Therefore, a horizontal support plate 223 is fixedly installed inside the frame 22. The three sides of the horizontal support plate 223 are fixedly connected to the three side plates 221 to divide the inside of the frame 22 into an upper cavity and a lower cavity. The fixing block 311 and the side-pushing structure 312 are both installed on the upper surface of the horizontal support plate 223. The abutment part 32 is located on the upper surface of the horizontal support plate 223 and in the upper cavity above the horizontal support plate 223. The shaping execution mechanism 4 is installed on the lower surface of the horizontal support plate 223 and in the lower cavity below the horizontal support plate 223. In order to ensure the stability of the horizontal support plate 223, multiple support columns 225 are connected between the horizontal support plate 223 and the top plate 222. In this embodiment, the fixing block 311 includes a first fixing section 3111 fixedly connected to the horizontal support plate 223 and a first extension section 3112 extending from the top of one side of the first fixing section 3111 facing the side push structure 312. The first extension section 3112 is provided with a first arc-shaped groove 3113 that runs vertically through the workpiece 1, and the first arc-shaped groove 3113 is adapted to the half-side shape of the workpiece 1.

[0034] In this embodiment, the side-push structure 312 includes a connecting block 3121 fixedly mounted on a horizontal support plate 223, a side-push block 3122 slidably disposed on the connecting block 3121 and capable of approaching or moving away from the fixed block 311, a push-pull rod 3123 connected to the side-push block 3122 and capable of moving laterally relative to the connecting block 3121, and a first spring 3124 connected between the side-push block 3122 and the connecting block 3121 for pushing the side-push block 3122 toward the fixed block 311. The connecting block 3121 provides support for the side-push block 3122. Under the compression of the first spring 3124, the side-push block 3122 is pressed toward the fixed block 311. The push-pull rod 3123 facilitates pushing and pulling the side-push block 3122 manually, so that the side-push block 3122 can move away from the fixed block 311 when the workpiece 1 needs to be installed. In use, by pulling the push rod 3123, the side push block 3122 moves laterally away from the fixed block 311, compressing the first spring 3124, allowing the workpiece 1 to pass through. Once the opening of the workpiece 1 abuts against the fixed block 311, the push rod 3123 is released, and the first spring 3124 rebounds, pushing the side push block 3122 to slide towards the fixed block 311 until the side push block 3122 abuts against the outer wall of the workpiece 1, thus cooperating with the fixed block 311 to clamp the workpiece 1 and complete the positioning of the workpiece 1. The clamping of the workpiece 1 by the side push block 3122 is achieved by the first spring 3124 providing elastic support to the workpiece 1, ensuring proper positioning while avoiding excessive clamping that could damage the workpiece 1. It should be noted that "lateral" in this embodiment refers to the horizontal direction.

[0035] In this embodiment, the connecting block 3121 and the fixing block 311 are aligned in a straight line. The connecting block 3121 and the fixing block 311 can be distributed along the front-back direction or the left-right direction, and are not limited to any one direction. A sliding groove 3125 is formed on the side of the connecting block 3121 facing the fixing block 311, and the sliding groove 3125 opens towards the fixing block 311. A first sliding hole 3126 communicating with the sliding groove 3125 is formed on one side of the connecting block 3121. The side-pushing block 3122 includes a first sliding end 31221 that slides through the sliding groove 3125, a second fixing section 31222 fixedly connected to the first sliding end 31221 near the end of the fixing block 311, and a second extension section 31223 extending from the top of the side of the second fixing section 31222 facing the fixing block 311. The first sliding end 31221 is adapted to slide through the sliding groove 3125. One end of the push-pull rod 3123 is fixedly connected to the end of the first sliding end 31221 away from the side push block 3122 after passing through the first sliding hole 3126. The length direction of the first sliding hole 3126 is the same as the length direction of the sliding groove 3125, so that the side push block 3122 can be moved when the push-pull rod 3123 is moved. A second arc-shaped groove 3127 is recessed on the second extension 31223 corresponding to the shape of the workpiece 1, and the second arc-shaped groove 3127 is adapted to the other half of the shape of the workpiece 1. The clamping cavity 313 is formed between the fixed block 311 and the side push block 3122, and is formed by the first arc-shaped groove 3113 and the second arc-shaped groove 3127. Furthermore, the first extension segment 3112 and the second extension segment 31223 protrude towards each other, while the first fixed segment 3111 and the second fixed segment 31222 are recessed corresponding to the first extension segment 3112 and the second extension segment 31223, respectively. This greatly reduces the pressing area on the outer surface of the workpiece 1. At the same time, the first fixed segment 3111 and the second fixed segment 31222 can form a wider space relative to the clamping cavity 313, so as to facilitate the cooperation of the shaping execution mechanism 4. The first spring 3124 is arranged along the sliding direction of the first sliding end 31221 and is located in the sliding groove 3125, and the first spring 3124 is located on the side of the first sliding end 31221 away from the side push block 3122.

[0036] In this embodiment, the supporting part 32 includes an upper pressure plate 321 vertically movably disposed on the top plate 222 of the base 2 above the clamping part 31, a first driving member 322 mounted on the base 2 and connected to the upper pressure plate 321, and a limiting post 323 fixedly disposed on the horizontal support plate 223. The first driving member 322 is used to drive the upper pressure plate 321 to move up and down during operation to approach or move away from the clamping cavity 313 of the clamping part 31, configuring the space between the upper pressure plate 321 and the clamping part 31 as a positioning space 33, which is located below the upper pressure plate 321. The limiting post 323 is used to restrict the upper pressure plate 321 from continuing to move when it moves downward to the top of the workpiece 1, so that the upper pressure plate 321 contacts and restricts the workpiece 1 without crushing it.

[0037] In this embodiment, four first through holes are provided on the top plate 222, and a first linear guide rail 226 is fixedly installed at each through hole. A sliding rod 227 is fixedly connected to the upper pressure plate 321 at a position corresponding to each first linear guide rail 226. The top end of each sliding rod 227 slides vertically through the first linear guide rail 226, allowing the upper pressure block to move vertically up and down. On opposite sides of the upper pressure block, there are supporting blocks 3211 extending laterally in opposite directions. Two limiting posts are provided corresponding to the supporting blocks 3211, each vertically positioned below the two supporting blocks 3211. The top height of the limiting post 323 is exactly the same as the vertical height of the workpiece 1 to be shaped. When the first driving member 322 moves the upper pressure plate 321 downwards until the supporting block 3211 abuts against the top of the limiting post 323, the upper pressure plate 321 can contact the top end of the workpiece 1 positioned on the clamping cavity 313. When the workpiece 1 is installed, its bottom end is supported on the horizontal support plate 223. In this way, the cooperation between the clamping part 31 and the supporting part 32 can not only restrict the vertical movement, lateral movement and flipping of the workpiece 1, but also reduce the pressing force applied to the workpiece 1, greatly reducing the possibility of damaging the workpiece 1, so as to relatively ensure the integrity of the thinner workpiece 1. The first driving member 322 is fixedly installed on the top surface of the top plate 222 and a second through hole is opened at the middle position of the top plate 222. The output shaft of the first driving member 322 moves through the second through hole and is fixedly connected to the center position of the upper pressure plate 321.

[0038] Please see Figures 1 to 6 , Figure 8In this embodiment, the shaping actuator 4 is located below the positioning space 33 and includes a transmission part 41 mounted on the base 2 and located directly below the positioning space 33, a drive part 42 mounted on the base 2 for driving the transmission part 41, and a shaping part 43 mounted on the base 2. The drive part 42 is used to drive the transmission part 41 to move, and the running transmission part 41 is used to drive the shaping part 43 to pass into the positioning space 33. When the workpiece 1 is installed in the positioning space 33, the shaping part 43 can pass into the inner cavity of the workpiece in the positioning space 33, and under the drive of the transmission part 41, it can complete the shaping by squeezing the inner wall of the workpiece 1, so that the workpiece 1 is squeezed into the required shape from the inside. In another embodiment, the shaping actuator 4 includes two L-shaped shaping sliding blocks (not shown in the figure) slidably connected to the horizontal support plate 223 and two third driving members (not shown in the figure) symmetrically connected to the bottom surface of the horizontal support plate 223 and whose output shafts are respectively connected to the two shaping sliding blocks. One end of the two shaping sliding blocks extends upward into the clamping cavity 313, and the opposite sides of the two shaping sliding blocks are consistent with the contour of the workpiece 1 that needs to be shaped. In use, the output shafts of the two third driving members retract to drive the two shaping sliding blocks to move laterally to squeeze the inner wall of the workpiece 1 to achieve the purpose of shaping.

[0039] In this embodiment, the transmission unit 41 includes a connecting plate 411 vertically movably connected to the bottom surface of the horizontal support plate 223, an ejector pin 412 fixedly connected to the top surface of the connecting plate 411 and located directly below the positioning space 33, and a transmission coupling component connected to the connecting plate 411. In use, the driving unit 42 engages with the transmission coupling component to move the connecting plate 411 up and down, thereby driving the ejector pin 412 to move up and down. The shaping unit 43 is used to cooperate with the ejector pin 412 to press the workpiece 1 when the ejector pin 412 moves upward.

[0040] In this embodiment, a guide rod 4111 is vertically arranged at each of the four corners of the top surface of the connecting plate 411. A third through hole is provided on the horizontal support plate 223 corresponding to the position of each guide rod 4111. A second linear guide rail is fixedly installed at each third through hole. Each guide rod 4111 slides vertically through each second linear guide rail, so that the connecting plate 411 can move vertically. A first auxiliary block 4112 is fixedly connected to the connecting plate 411 at the middle position between each guide rod 4111. The bottom of the first auxiliary block 4112 is recessed with a groove 4113, and a fourth through hole is vertically formed on the top wall of the groove 4113. The bottom end of the ejector pin 412 has a head with a diameter larger than the fourth through hole, which can penetrate into the groove 4113. The top end of the ejector pin 412 passes through the fourth through hole from bottom to top until the head abuts against the groove 4113. The first auxiliary block 4112 is fixed to the connecting plate 411 after the ejector pin 412 is installed. The bottom of the head is supported on the connecting plate 411 to fix the ejector pin 412. The top end of the ejector pin 412 is tapered and gradually narrows upward to form a tapered end 4121. The transmission engagement component includes a roller 413 fixedly connected to the bottom of the connecting plate 411 and in contact with the drive unit 42, and a second spring 414 connected between the connecting plate 411 and the base 2 to elastically push the connecting plate 411 vertically toward the inclined surface 4211. The roller 413 is engaged with the drive unit 42 to drive the connecting plate 411 connected thereto to move up and down. The second spring 414 is used for the reset of the connecting plate 411. The roller 413 has a connecting seat fixedly connected to the bottom surface of the connecting plate 411, and the connecting seat is located directly below the ejector pin 412. The second spring 414 is sleeved on the guide rod 4111 and its two ends contact the connecting plate 411 and the horizontal support plate 223 respectively. The second spring 414 can always be in a compressed state, or the second spring 414 is in a normal state in the initial stage. When the driving part 42 cooperates with the roller 413 to drive the connecting plate 411 to move upward, the second spring 414 is in a compressed state.

[0041] In this embodiment, the drive unit 42 includes a conical block 421 that is slidably disposed on the base 2 in a direction perpendicular to the vertical and has an inclined surface 4211 on its top surface, and a second drive member 422 that is mounted on the top surface of the housing 21 and is used to drive the conical block 421 to slide. The side of the inclined surface 4211 of the conical block 421 that is close to the roller 413 is narrow and the side that is away from the roller 413 is wide. The roller 413 contacts the inclined surface 4211. When the second drive member 422 drives the conical block 421 to move, the roller 413 cannot move laterally and moves up or down by rolling with the inclined surface 4211. When the roller 413 moves from low to high, the connecting plate 411 moves upward and vice versa. In this embodiment, a second auxiliary block 212 with dovetail grooves is fixedly installed on the support platform 211. The dovetail grooves are distributed laterally, meaning they can be distributed in any horizontal direction. A sliding block is formed at the bottom of the conical block 421 and is slidably disposed within the dovetail grooves. The roller 413 is initially located on the lower side of the inclined surface 4211, and the side of the conical block 421 away from the lower side is connected to the output shaft of the second drive member 422. The second drive member 422 can be a linear cylinder, and its output shaft is distributed along the distribution direction of the dovetail grooves. When the second drive member 422 is running, its output shaft extends, causing the conical block 421 to slide within the dovetail grooves. A limiting block 213 is provided on the side of the second auxiliary block 212 away from the second driving member 422. When the roller 413 slides to the highest point of the inclined plane 4211, the conical block 421 abuts against the limiting block 213 to prevent the roller 413 from moving outside the inclined plane 4211. When the second driving member 422 retracts, the roller 413 gradually slides from the highest point of the inclined plane 4211 to the lowest point. When the second driving member 422 completes its reset, the roller 413 moves to the lowest point of the inclined plane 4211. In this embodiment, through the transmission cooperation between the roller 413 and the inclined plane 4211, the entire connecting plate 411 is made more stable during the up and down movement. With the cooperation of each guide rod 4111 and the second spring 414, a firm and stable support is provided for the ejector pin 412, thereby ensuring the shaping accuracy and reducing errors when the shaping part 43 shapes the workpiece 1.

[0042] In this embodiment, the shaping part 43 is mounted on the lower surface of the horizontal support plate 223 and located directly above the connecting plate 411 and the ejector pin 412. The shaping part 43 includes a first side-pushing part 43a and a second side-pushing part 43b symmetrically distributed on the lower surface of the horizontal support plate 223. The inner ends of the first side-pushing part 43a and the second side-pushing part 43b abut against each other and form a pushing space 431. The pushing space 431 is vertically aligned with the moving path of the ejector pin 412. The ejector pin 412 moves upward and cooperates with the pushing space 431 to squeeze and push the first side-pushing part 43a and the second side-pushing part 43b, causing the first side-pushing part 43a and the second side-pushing part 43b to separate to both sides and move in opposite directions to squeeze the inner wall of the workpiece 1.

[0043] In this embodiment, both the first side pusher 43a and the second side pusher 43b include a sleeve 432 fixedly connected to the bottom surface of the horizontal support plate 223, a slider 433 slidably connected to the sleeve 432 in the transverse direction, a third spring 434 connected to the horizontal support plate 223 and facing inward for elastic support of the slider 433, and a shaping block 435 fixedly connected to the slider 433 and moving through the horizontal support plate 223 to enter the positioning space 33. The third spring 434 causes the two sliders 433 of the first side pusher 43a and the second side pusher 43b to move towards each other and abut against each other. The sleeve 432 provides support for the slider 433, and the slider 433 provides support for the shaping block 435. In this embodiment, a vertically penetrating movable hole 228 is provided on the horizontal support plate 223 for the shaping block 435 to pass through. The movable hole 228 is located within the clamping cavity 313 and its width is slightly smaller than the width of the opening side of the workpiece 1, so that the workpiece 1 is supported on the top surface of the horizontal support plate 223. Of course, the workpiece 1 can also be suspended above the horizontal support plate 223 by the clamping of the clamping part 31. Two third auxiliary blocks 229 are symmetrically distributed on the bottom surface of the horizontal support plate 223 relative to the movable hole 228, located outside the two sides of the movable hole 228. The two sleeves 432 of the first side push part 43a and the second side push part 43b are fixedly connected to the bottom surface of the horizontal support plate 223 and are symmetrically distributed on the inner side of the two third auxiliary blocks 229 relative to the movable hole 228. A second sliding hole 4321 is provided on the sleeve 432 along the distribution direction of the third auxiliary block 229 and the sleeve 432. One end of the slider 433 is slidably inserted into the second sliding hole 4321. The two ends of the third spring 434 are respectively connected to the second auxiliary block 212 and the slider 433. When the two sliders 433 are in contact or close to each other, the third spring 434 is in a compressed state. The third spring 434 can also be in a normal state when the two sliders 433 are in contact or close to each other. The slider 433 includes a second sliding end 4331 that slides through the second sliding hole 4321 and a thickened end 4332 located on the inward end of the second slider 433. The thickened end 4332 is located outside the second sliding hole 4321 and protrudes upward at the top. The shaping blocks 435 of the first side push part 43a and the second side push part 43b are respectively fixedly connected to the top surface of the corresponding thickened end 4332, and the two shaping blocks 435 are set against each other when the third spring 434 is not subjected to external force.The outer walls of the two shaping blocks 435 after they abut against each other are consistent with the inner wall of the workpiece 1 to be formed. The two shaping blocks 435 can pass upward through the movable hole 228 and extend into the space between the first fixed section 3111 and the second fixed section 31222. The two shaping blocks 435 are vertically aligned with the clamping cavity 313 so that the open side of the workpiece 1 can be fitted onto the two shaping blocks 435. A connected pushing space 431 is formed between the two sliders 433 of the first side push part 43a and the two side push parts 43b and the facing side of the two shaping blocks 435. Each slider 433 and each shaping block 435 is recessed with an arc-shaped surface. The arc-shaped surface opens inward and is vertically connected. The pushing space 431 is formed when the two shaping blocks 435 abut against each other and the two sliders 433 abut against each other or approach each other. The diameter of the rod body portion of the cone end 4121 to the bottom is larger than the size of the pushing space 431. When the ejector pin 412 moves upward, the cone end 4121 gradually squeezes the pushing space 431 so that the two shaping blocks 435 and the two sliders 433 move in opposite directions. The workpiece 1, which is sleeved on the two shaping blocks 435, is squeezed under the movement of the shaping blocks 435 and gradually deforms and fits along the outer side wall of the shaping blocks 435 until the shaping is completed.

[0044] In this embodiment, a front side plate 224 is installed on the platform 22 and on the front side of the lower space to block the shaping actuator 4. A grating frame 25 and a grating 24 are fixedly connected to both sides of the front side of the platform 22.

[0045] One embodiment of the thin-shell product shaping device of this utility model operates as follows: First, manually push the push-pull rod 3123 to move the side push block 3122 away from the fixed block 311. Then, place the workpiece 1 with its open side facing down into the clamping cavity 313 and fit it onto the two shaping blocks 435. Release the push-pull rod 3123 so that the side push block 3122, under the elastic support of the first spring 3124, presses against the workpiece 1 to complete the positioning. By pressing the double control button, the first driving component 322 is activated via a signal. The operation drives the upper pressure plate 321 to move downwards until the holding block 3211 abuts against the top of the limiting post 323, and the lower pressure plate contacts the top of the workpiece 1, completing the fixation of the workpiece 1. At this time, the open side of the workpiece 1 is aligned with the movable hole 228. Then, the second driving member 422 is controlled to run. The output shaft of the second driving member 422 drives the tapered block 421 to slide, causing the roller 413 to roll and rub upwards along the slope of the inclined surface 4211. During the sliding, the roller 413 rolls along the slope of the inclined surface 4211. The force in the horizontal pushing direction is converted into a more stable force in the vertical direction, thereby driving the connecting plate 411 and the ejector pin 412 on the connecting plate 411 to move upward. During the upward movement, the conical end 4121 of the ejector pin 412 gradually contacts and squeezes the inner wall of the pushing space 431, so that the two shaping blocks 435 move in opposite directions and gradually squeeze the inner wall of the workpiece 1, until the rod of the ejector pin 412 contacts the inner wall of the pushing space 431 to keep the shaping block 435 in place and complete the shaping of the workpiece 1; then the second The second drive component 422 resets and drives the conical block 421 to retract. The second spring 414 rebounds and presses the connecting plate 411, causing the roller 413 to move downward. The conical end 4121 gradually disengages from the pushing space 431, causing the two shaping blocks 435 to move towards each other and reset. After the roller 413 resets, the second drive component 422 stops running. The first drive component 322 moves and drives the upper pressure block to move upward and reset before stopping. Then, the workpiece 1 is removed by pulling the push rod 3123, thus completing the shaping workpiece 1.

[0046] Compared with existing technologies, the thin-shell product shaping device of this invention can significantly reduce debugging difficulty, improve production efficiency, and reduce labor costs.

Claims

1. A thin shell product shaping apparatus characterized by, The utility model provides a workpiece shaping device, which comprises a base, a workpiece fixing mechanism arranged on the base and having a positioning space for mounting and positioning a workpiece, and a shaping execution mechanism arranged on the base below the positioning space and comprising a shaping part capable of penetrating into an inner cavity of the workpiece and extruding and shaping an inner wall of the workpiece. The workpiece fixing mechanism comprises a clamping part mounted on the base for clamping and positioning the workpiece, and a resisting part movably connected with the base and located above the clamping part for resisting the top of the workpiece, and the positioning space is formed by the clamping part and the resisting part. The clamping part comprises a fixed block fixedly mounted on the base, and a side pushing structure movably mounted on the base in a transverse direction and arranged opposite to the fixed block, and a clamping cavity adapted to the outer contour of the workpiece is formed between the fixed block and the side pushing structure. The side pushing structure comprises a connecting block fixedly mounted on the base, a side pushing block movably arranged on the connecting block in the transverse direction and capable of moving close to or away from the fixed block, a push-pull rod connected with the side pushing block and capable of moving in the transverse direction relative to the connecting block, and a first spring connected between the side pushing block and the connecting block for pushing the side pushing block to move towards the fixed block, and the clamping cavity is formed between the fixed block and the side pushing block. The resisting part comprises an upper pressing plate movably arranged on the base in a vertical direction to be located above the clamping part, and a first driving member mounted on the base and connected with the upper pressing plate, the first driving member being used to drive the upper pressing plate to move up and down to move close to or away from the clamping part when in operation, and the positioning space is located below the upper pressing plate.

2. The shell product shaping apparatus of claim 1, wherein: The resisting part further comprises a limiting column fixedly arranged on the base, the top end of the limiting column having a height corresponding to the top end position of the workpiece, and the upper pressing plate has a resisting block for resisting downward on the limiting column.

3. The shell forming apparatus of claim 2, wherein: The shaping execution mechanism comprises a transmission part mounted on the base and located at a position directly below the positioning space, and a driving part for driving the transmission part to operate, and the shaping part is mounted on the base and cooperates with the transmission part for extruding and shaping the workpiece. The transmission part comprises a connecting plate movably connected with the base in the vertical direction, a top pin fixedly connected with the top surface of the connecting plate and located at a position directly below the positioning space, and a transmission matching member connected with the connecting plate, the driving part is in transmission cooperation with the transmission matching member to move the connecting plate up and down, and the shaping part is used to extrude the workpiece in cooperation with the top pin when the top pin moves upward.

4. The shell forming apparatus of claim 2 wherein: The driving part comprises a conical block slidably arranged on the base in a direction perpendicular to the vertical direction and having a top surface with an inclined surface, and a second driving member mounted on the base and used to drive the conical block to slide, and the transmission matching member comprises a roller fixedly connected with the bottom of the connecting plate and in contact with the inclined surface, and a second spring connected between the connecting plate and the base to elastically push the connecting plate in the vertical direction towards one side of the inclined surface, when the second driving member drives the conical block to move to make the roller move upward or downward.

5. The shell forming apparatus of claim 4, wherein: The base is provided with a horizontal support plate, the workpiece fixing mechanism is mounted on the upper surface of the horizontal support plate, and the shaping execution mechanism is arranged on the lower surface of the horizontal support plate.

6. A shell product shaping device as claimed in any one of claims 1 to 5, wherein: ​ 7. The shell forming apparatus of claim 6 wherein: ​ 8. The shell forming apparatus of claim 7, wherein: ​ ​ 9. The shell forming apparatus of claim 8 wherein: ​ The shaping part comprises symmetrically arranged first and second side pushing parts, inner ends of the first and second side pushing parts abut against each other and form a pushing space, the pushing space is vertically aligned with a moving path of the ejector pin; When the ejector pin moves upward, the top end of the ejector pin pushes the first and second side pushing parts to move apart from each other through the pushing space, so as to press the inner wall of the workpiece reversely.

10. The shell forming apparatus of claim 9, wherein: The first and second side pushing parts each comprise a sleeve fixedly connected to a bottom surface of a horizontal support plate, a sliding block slidingly connected to the sleeve in a transverse direction, a third spring connected to the horizontal support plate and inwardly used for elastically supporting the sliding block, and a shaping block fixedly connected to the sliding block and movably penetrating through the horizontal support plate to penetrate into a positioning space, the shaping blocks have an outer shape consistent with an inner cavity profile of an opening side of the workpiece, so that the opening side of the workpiece is sleeved on the shaping blocks, the pushing space is formed between the sliding blocks and the shaping blocks of the first and second side pushing parts and is communicated, the top end of the ejector pin has a tapered end gradually narrowing upward and aligned with the pushing space, a bottom diameter of the tapered end is greater than a size of the pushing space, and when the ejector pin moves upward, the tapered end presses the pushing space to move the shaping blocks and the sliding blocks reversely.

Images