Movable clamp for assembling toy injection molding parts

Abstract

The invention relates to the technical field of fixtures for assembling toy injection molding parts, in particular to a movable fixture for assembling toy injection molding parts, which comprises a processing bottom plate, an L-shaped supporting column and an assembling table are respectively mounted on the left and right sides of the top of the processing bottom plate, a sliding rail is mounted on the front side of the top of the assembling table, and a U-shaped bearing plate is connected to the sliding rail in a front-back sliding manner through an electric sliding block; a clamping mechanism is installed at the top of the L-shaped supporting column through an adjusting assembly, and a positioning mechanism is arranged on the U-shaped bearing plate. A vacuum generator is matched with a suction cup to adsorb the top of a toy injection molding part, and meanwhile, an embedded rod in a pressed clamping part is pressed to rise and drives a track rod to abut against a guide groove, so that four abutting plates elastically abut against the toy injection molding part synchronously; and the stability of the toy injection molding parts in the conveying process is remarkably improved in the mode that the toy injection molding parts are clamped through the suction cups and the abutting plates.

Description

Technical Field

[0001] The present invention relates to the technical field of fixtures for assembling toy injection molded parts, and specifically to a mobile fixture for assembling toy injection molded parts. Background Art

[0002] Toy injection molded parts are plastic components manufactured through the injection molding process and are widely used in the core structures and functional components of toy products. Their assembly accuracy directly affects the overall quality, safety, and functionality of toys. During the processing, the assembly link is a crucial step connecting the components to the finished product, and it is necessary to ensure that the position, angle, and mating relationship of the injection molded parts fully meet the design requirements. There is a toy injection molded part and components after assembly as shown in Figure 10 The appearance of the toy injection molded part is a small car, and the assembled component is the wheel on the small car. Since the main body of the toy injection molded part has a complex shape and fine dimensions, if the clamping stability is insufficient, it is easy to cause it to shift, loosen, or even fall off during movement or assembly, which will not only reduce the assembly efficiency but may also cause assembly errors due to component misalignment, resulting in unqualified products or safety hazards.

[0003] The actual mobile fixture for clamping the above-mentioned toy injection molded part usually uses a vacuum generator to drive a suction cup to clamp the top of the toy injection molded part, and drives the vacuum generator, suction cup, and toy injection molded part to move synchronously through a moving device. And at the assembly position, there is a U-shaped plate driven by an electric slider, and the clamped toy injection molded part is placed on the U-shaped plate for subsequent assembly operations.

[0004] Although the above-mentioned mobile fixture can quickly complete clamping and drive the toy injection molded part to move, the method of sucking and clamping the top of the toy injection molded part by the suction cup still cannot reduce the risk of loosening or falling off of the toy injection molded part during movement. Moreover, when using the suction cup to suck and hold toy injection molded parts with different sizes, it is impossible to ensure that the aligned position of the suction cup is on the flat plane of the toy injection molded part, resulting in an increased risk of loosening or falling off of the clamped toy injection molded part during movement; in addition, after the toy injection molded part is placed on the U-shaped plate, it is impossible to ensure that the position of the toy injection molded part is accurate relative to the assembly structure, and there is a certain deflection of the toy injection molded part, resulting in the toy injection molded part being more likely to shift during the subsequent assembly process, reducing the assembly efficiency. Summary of the Invention

[0005] To solve the above technical problems, the technical solution adopted by the present invention is as follows: A movable fixture for assembling toy injection-molded parts, including a processing base plate, an L-shaped support column and an assembly table are respectively installed on the left and right of the top of the processing base plate, a slide rail is installed on the front side of the top of the assembly table, and a U-shaped bearing plate is slidably connected back and forth on the slide rail through an electric slider. The top of the L-shaped support column is installed with a clamping mechanism through an adjustment component, and a positioning mechanism is arranged on the U-shaped bearing plate; the clamping mechanism includes an electric push rod installed on the adjustment component, the pushing end of the electric push rod is connected with a mounting plate through a vacuum generator, and a plurality of suction cups are circumferentially and evenly arranged on the mounting plate. A ventilation pipe is connected between each suction cup and the vacuum generator. L-shaped connecting columns are symmetrically arranged on the left and right of the mounting plate. A pressure-bearing clamping member and a locking member are arranged on the vertical section of the L-shaped connecting column. The pressure-bearing clamping member cooperates with the locking member to assist the suction cup to clamp the toy injection-molded part; the positioning mechanism includes square grooves symmetrically opened on the left and right sides of the horizontal section of the U-shaped bearing plate. An L-shaped positioning rod is connected in the square groove through a horizontal spring. A pressure-bearing limiting member is arranged on the L-shaped positioning rod. A pressing structure is arranged between the pressure-bearing limiting member and the L-shaped connecting column. Follow-up positioning members are symmetrically arranged on the front and back of the U-shaped bearing plate. The pressing structure can drive the pressure-bearing limiting member to cooperate with the follow-up positioning member to synchronously position the toy injection-molded part.

[0006] Further, the pressure-bearing clamping member includes a vertical groove opened at the bottom of the vertical section of the L-shaped connecting column. An embedded rod is connected to the top of the vertical groove through a vertical spring. Communication grooves are opened on the front and back sides of the vertical section of the L-shaped connecting column corresponding to the position of the embedded rod. The communication groove is connected to the vertical groove. Pressing structures for horizontally clamping the toy injection-molded part are arranged on the front and back sides of the vertical section of the L-shaped connecting column corresponding to the communication groove.

[0007] Further, the pressing structure includes horizontal sliding grooves arranged on the vertical section of the L-shaped connecting column and located on the upper and lower sides of the communication groove. A vertical plate is connected to the two horizontal sliding grooves. An elastic pressing plate is connected to the side of each vertical plate close to the mounting plate. A guiding groove is opened on the vertical plate. The guiding grooves on the two vertically corresponding vertical plates are distributed in an inverted V shape. Pressing rods are fixed on the front and back sides of the embedded rod and corresponding to the guiding grooves.

[0008] Further, the locking member includes a side sliding groove opened on the side of the vertical section of the L-shaped connecting column away from the mounting plate. A moving plate is slidably connected to the side sliding groove. An adjusting screw rod I is threadedly connected to the vertical section of the L-shaped connecting column. The adjusting screw rod I is rotatably installed at the bottom of the moving plate. A locking pin penetrates horizontally through the moving plate. A locking hole corresponding to the locking pin is arranged on the pressure-bearing clamping member. A limiting structure for limiting the locking pin is arranged on the side of the moving plate away from the mounting plate.

[0009] Furthermore, the limiting structure includes a U-shaped frame fixed to the side of the moving plate. A compression spring is connected between the locking pin and the vertical section of the U-shaped frame. One end of the locking pin away from the mounting plate is fixed with a limiting rod that penetrates the vertical section of the U-shaped frame and limits the locking pin. A wedge block is fixed to the end of the limiting rod away from the mounting plate. On the top of the assembly table and symmetrically fixed on both sides of the slide rail are push rods. A coordination inclined plane for cooperating with the wedge block is provided at the top of the push rod.

[0010] Furthermore, the compression limiting member includes a positioning groove opened in the middle of the vertical section of the L-shaped positioning rod. A connecting plate is vertically slidably connected in the positioning groove. The vertical section of the L-shaped positioning rod is threadedly connected with an adjusting screw rod two. The adjusting screw rod two is rotatably installed on the top of the connecting plate. A stabilizing structure for stabilizing the toy injection molded part is installed on the top of the connecting plate.

[0011] Furthermore, the stabilizing structure includes a square rod fixed to the top of the connecting plate and close to the horizontal spring. A triangular pressing head is slidably sleeved on the square rod. A tension spring is connected between the triangular pressing head and the connecting plate.

[0012] Furthermore, the pressing structure includes a trigger push rod fixed to the vertical section of the L-shaped positioning rod and away from the side of the follower positioning member. An inclined pressing rod is fixed to the side of the bottom of the vertical section of the L-shaped connecting column close to the mounting plate.

[0013] Furthermore, the follower positioning member includes a sliding column that slides through the vertical section of the U-shaped bearing plate back and forth. A horizontal plate is fixed to one end of the sliding column close to the L-shaped positioning rod. A synchronous rod is fixed to the end of the sliding column away from the L-shaped positioning rod. The synchronous rod is an inverted T shape. Transmission structures are connected between the left and right sides of the lower end of the synchronous rod and the horizontal section of the L-shaped positioning rod.

[0014] Furthermore, the transmission structure includes a coordination groove opened in the horizontal section of the U-shaped bearing plate. A driven push rod is slidably connected in the coordination groove. The driven push rod is fixedly connected with the synchronous rod. Pushing blocks are symmetrically fixed to the front and back sides of the horizontal section of the L-shaped positioning rod. An inclined wedge guiding surface is provided between the pushing block and the driven push rod. A reset structure is provided between the horizontal section of the U-shaped bearing plate and the driven push rod.

[0015] The beneficial effects of the present invention are as follows: First, the present invention uses a vacuum generator to cooperate with a suction cup to adsorb the top of the toy injection molded part. At the same time, the embedded rod in the compression clamping member is pressed upward and drives the pressing rod to press the guiding groove, so that the four pressing plates simultaneously elastically press the toy injection molded part. Furthermore, the stability of the toy injection molded part during transportation is significantly improved by the dual clamping method of the suction cup and the pressing plates.

[0016] Second, the present invention drives the trigger push rod through the oblique compression rod to pre - drive the L - shaped positioning rod and the follower positioning member to move synchronously, so that during the reset process of the L - shaped positioning rod, the triangular pressure head is driven to press against the left and right sides of the toy injection molding part. At the same time, the pushing block in the follower positioning member drives the driven push rod away from the horizontal plate through the inclined wedge guiding surface and cooperates with the reset spring to elastically press against the front and back sides of the toy injection molding part, thereby positioning the toy injection molding part in all directions of front, back, left, and right before assembly, preventing the toy injection molding part from skewing during the assembly process and ensuring accurate assembly during the assembly of the toy injection molding part.

[0017] Third, the present invention adjusts the up - and - down position of the moving plate through the adjusting screw pair, so that the position where the locking pin is inserted into the locking jack on the embedded rod adapts to its different rising heights, thereby ensuring that the elastic pressing plate stably presses against and clamps toy injection molding parts of different sizes; at the same time, the height of the triangular pressure head is adjusted through the adjusting screw pair, and in cooperation with the elastic force of the reset spring in the follower positioning member, the horizontal plate and the triangular pressure head can adapt to toy injection molding parts of different sizes for positioning, further improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the drawings and embodiments.

[0019] Figure 1 is a schematic structural diagram of the present invention.

[0020] Figure 2 is a schematic structural diagram of the assembly table, clamping mechanism, and positioning mechanism in the present invention.

[0021] Figure 3 is a schematic structural diagram of the clamping mechanism and positioning mechanism in the present invention.

[0022] Figure 4 is a partial front view of the clamping mechanism in the present invention.

[0023] Figure 5 is a partial front - facing sectional view of the clamping mechanism and positioning mechanism in the present invention.

[0024] Figure 6 is Figure 5 an enlarged view of part A in

[0025] Figure 7 is a partial sectional view of the clamping mechanism along the vertical plate in the present invention.

[0026] Figure 8 is a partial side - facing sectional view of the clamping mechanism and positioning mechanism in the present invention.

[0027] Figure 9 is a partial top - facing sectional view of the positioning mechanism and the U - shaped bearing plate in the present invention.

[0028] Figure 10 It is a schematic structural diagram after the toy injection molding parts are assembled.

[0029] In the figure: 1. Processing base plate; 11. L-shaped support column; 12. Assembly table; 121. Slide rail; 122. U-shaped bearing plate; 123. Push rod; 13. Adjusting component; 131. Servo moving slide; 132. Support frame; 133. Connecting block; 2. Clamping mechanism; 21. Electric push rod; 22. Vacuum generator; 221. Mounting plate; 222. Suction cup; 223. Vent pipe; 224. L-shaped connecting column; 23. Compressed clamping piece; 231. Vertical groove; 232. Embedded rod; 233. Vertical plate; 234. Tightening plate; 235. Guide groove; 236. Pressing rod; 24. Locking piece; 241. Side chute; 242. Moving plate; 243. Locking pin; 244. U-shaped frame; 245. Limiting rod; 246. Wedge block; 3. Positioning mechanism; 31. Square groove; 311. L-shaped positioning rod; 312. Trigger push rod; 313. Oblique pressure rod; 32. Compressed limiting piece; 321. Connecting plate; 322. Square rod; 323. Triangular pressure head; 33. Follow-up positioning piece; 331. Sliding column; 332. Horizontal plate; 333. Synchronous rod; 334. Driven push rod; 335. Pushing block. Specific embodiments

[0030] The embodiments of the present invention will be described in detail below. The embodiments described below are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention. For those not specified in the embodiments, the techniques or conditions described in the literature in the field or according to the product instructions are followed.

[0031] Refer to Figures 1 - 3 , a moving fixture for assembling toy injection molding parts, which includes a processing base plate 1. On the top of the processing base plate 1, an L-shaped support column 11 and an assembly table 12 are respectively installed on the left and right. On the front side of the top of the assembly table 12, a slide rail 121 is installed. An U-shaped bearing plate 122 is slidably connected to the slide rail 121 back and forth through an electric slider. On the top of the L-shaped support column 11, a clamping mechanism 2 is installed through an adjusting component 13. A positioning mechanism 3 is arranged on the U-shaped bearing plate 122.

[0032] In this embodiment, as Figure 1 shown, the adjusting component 13 includes a limiting groove opened in the horizontal section of the L-shaped support column 11. A servo moving slide 131 is slidably connected to the left and right in the limiting groove. A support frame 132 is arranged on the front side of the servo moving slide 131. A connecting block 133 is slidably connected to the support frame 132 back and forth. The connecting block 133 moves back and forth on the support frame 132 under the control of the servo moving slide 131.

[0033] At the top of the assembly table 12 and at the rear side of the U-shaped bearing plate 122, there is an assembly unit for assembling toy injection molded parts. At the top of the processing base plate 1 and at the left front of the assembly table 12, there is a toy injection molded part conveying unit.

[0034] In the present invention, the clamping mechanism 2 clamps the toy injection molded parts, and during the movement driven by the adjustment assembly 13, the stability of clamping the toy injection molded parts can be ensured. At the same time, the positioning mechanism 3 cooperates with the U-shaped bearing plate 122 to pre-position the toy injection molded parts before assembling the toy injection molded parts. On the one hand, it can ensure that the subsequent assembly unit can quickly and accurately assemble the toy injection molded parts. On the other hand, it can avoid the situation that the toy injection molded parts are damaged due to inaccurate positions of the toy injection molded parts being pressed by the assembly unit during the assembly process of the assembly unit.

[0035] Specifically, first, control the servo moving slide 131 to drive the support frame 132, the connecting block 133 and the clamping mechanism 2 to move leftward together. When the clamping mechanism 2 aligns with the toy injection molded parts conveyed by the toy injection molded part conveying unit, stop the movement of the servo moving slide 131. Subsequently, the clamping mechanism 2 aligns with the toy injection molded parts for stable clamping. After the clamping is completed, drive the clamping mechanism 2 and the toy injection molded parts to move to the position of the U-shaped bearing plate 122 at the front side by the servo moving slide 131. When the clamping mechanism 2 is directly above the U-shaped bearing plate 122, control the clamping mechanism 2 to place the toy injection molded parts on the U-shaped bearing plate 122. Subsequently, control the clamping mechanism 2 to release the clamping of the toy injection molded parts and move away from the U-shaped bearing plate 122. During this process, the positioning mechanism 3 will complete the positioning and stabilizing actions of the toy injection molded parts, so as to ensure that the toy injection molded parts remain in a stable state during the subsequent assembly process. Then, control the electric slider to drive the U-shaped bearing plate 122 and the toy injection molded parts to move backward together, and assemble the toy injection molded parts and the parts through the assembly unit. After the assembly is completed, control the electric slider to drive the U-shaped bearing plate 122 and the toy injection molded parts to move forward. Subsequently, clamp the assembled toy injection molded parts and the parts together through the clamping mechanism 2 again and move them to the front side position and convey them to the subsequent processing position.

[0036] It should be noted that the servo moving slide 131 is relatively common and widely used in the actual process of clamping and moving the toy injection molded parts, so no more details will be described.

[0037] Refer to Figures 2 - 4, the clamping mechanism 2 includes an electric push rod 21 installed at the bottom of the connecting block 133. The pushing end of the electric push rod 21 is connected to a mounting plate 221 through a vacuum generator 22. A plurality of suction cups 222 are circumferentially and evenly arranged on the mounting plate 221. An air pipe 223 is connected between each suction cup 222 and the vacuum generator 22. L-shaped connecting columns 224 are symmetrically arranged on the left and right of the mounting plate 221. A pressure-bearing clamping member 23 and a locking member 24 are arranged on the vertical section of the L-shaped connecting column 224.

[0038] The clamping mechanism 2 can stably clamp the toy injection molded parts. By the way of the pressure-bearing clamping member 23 cooperating with the locking member 24 to assist the suction cup 222 in clamping the toy injection molded parts, it can avoid the situation that the toy injection molded parts fall during the movement due to insufficient suction force of the suction cup 222. Specifically, when the clamping mechanism 2 aligns with the toy injection molded parts conveyed by the toy injection molded parts conveying unit, control the electric push rod 21 to drive the vacuum generator 22, the mounting plate 221 and the pressure-bearing clamping member 23 to move downward. When the pressure-bearing clamping member 23 and the locking member 24 move to the position of the toy injection molded parts, they will clamp the toy injection molded parts until the suction cup 222 presses against the top of the toy injection molded parts. Then control the vacuum generator 22 to cooperate with the air pipe 223 and the suction cup 222 to adsorb and clamp the top of the toy injection molded parts, so as to stably clamp the toy injection molded parts through the cooperation of the pressure-bearing clamping member 23 and the suction cup 222.

[0039] Refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8 , the pressure-bearing clamping member 23 includes a vertical groove 231 opened at the bottom of the vertical section of the L-shaped connecting column 224. An inner embedded rod 232 is connected to the top of the vertical groove 231 through a vertical spring. Communication grooves are opened on the front and rear sides of the vertical section of the L-shaped connecting column 224 corresponding to the position of the inner embedded rod 232. The communication grooves are connected to the vertical groove 231. Tightening structures for horizontally clamping the toy injection molded parts are arranged on the front and rear sides of the vertical section of the L-shaped connecting column 224 corresponding to the communication grooves.

[0040] The tightening structure includes horizontal sliding grooves arranged on the vertical section of the L-shaped connecting column 224 and located on the upper and lower sides of the communication grooves. A vertical plate 233 is connected to the two horizontal sliding grooves. An elastic tightening plate 234 is connected to the side of each vertical plate 233 close to the mounting plate 221. A guiding groove 235 is opened on the vertical plate 233. The guiding grooves 235 on the two vertically corresponding vertical plates 233 are distributed in an inverted V shape. Pressing rods 236 are fixed on the front and rear sides of the inner embedded rod 232 and corresponding to the guiding grooves 235.

[0041] The pressure-bearing clamping member 23 can stably clamp during the clamping of the toy injection molding by the initial clamping mechanism 2, thus avoiding the situation that the toy injection molding falls during the process of moving from the position of the toy injection molding conveying unit to the position of the U-shaped bearing plate 122. At the same time, the way of clamping the toy injection molding by the elastic pressing plate 234 can not only avoid the damage of the toy injection molding caused by directly pressing the toy injection molding, but also adapt to the clamping of toy injection moldings of different sizes.

[0042] Specifically, when the electric push rod 21 drives the pressure-bearing clamping member 23 to move downward to the position of the toy injection molding, at this time, the embedded rod 232 will contact the toy injection molding conveying unit and be pressed upward, thereby compressing the vertical spring. During the upward movement of the embedded rod 232, the pressing rod 236 will make the vertical plate 233 move towards the toy injection molding by pressing on the guiding groove 235. Subsequently, the pressing plate 234 will move along with the vertical plate 233 until it presses against the toy injection molding. At this time, pressing the toy injection molding by the pressing plates 234 at four positions can ensure the stability of the toy injection molding during the movement process.

[0043] Refer to Figures 4 - 6 , the locking member 24 includes a side sliding groove 241 opened on the vertical section of the L-shaped connecting column 224 away from the side of the mounting plate 221. A moving plate 242 is slidably connected to the side sliding groove 241. The vertical section of the L-shaped connecting column 224 is threadedly connected with an adjusting screw rod I. The adjusting screw rod I is rotatably installed at the bottom of the moving plate 242. A locking pin 243 horizontally penetrates through the moving plate 242. The embedded rod 232 is provided with a locking hole corresponding to the locking pin 243. The side of the moving plate 242 away from the mounting plate 221 is provided with a limiting structure for limiting the locking pin 243.

[0044] The limiting structure includes a U-shaped frame 244 fixed to the side of the moving plate 242. A compression spring is connected between the locking pin 243 and the vertical section of the U-shaped frame 244. One end of the locking pin 243 away from the mounting plate 221 is fixed with a limiting rod 245 that penetrates through the vertical section of the U-shaped frame 244 and limits the locking pin 243. A wedge-shaped block 246 is fixed to one end of the limiting rod 245 away from the mounting plate 221; on the top of the assembly table 12 and symmetrically fixed on both sides of the slide rail 121 are push rods 123. The top of the push rod 123 is provided with a coordination inclined plane for cooperating with the wedge-shaped block 246.

[0045] The locking member 24 can maintain the clamping state of the pressure-receiving clamping member 23 after the pressure-receiving clamping member 23 is pressurized and completes the auxiliary clamping of the toy injection molding part, thereby further ensuring the temperature of the pressing plate 234 against the toy injection molding part for pressing and clamping. And by adjusting the up and down position of the moving plate 242 through the adjusting screw rod 1, it can ensure the stable clamping of the pressure-receiving clamping member 23 for toy injection molding parts of different sizes.

[0046] Specifically, before clamping and assembling toy injection molding parts of the same size batch, first rotate the adjusting screw rod 1 according to the height of the toy injection molding part to adjust the up and down position of the moving plate 242, so as to adjust the locking position of the locking pin 243, so that when the locking pin 243 is inserted into the locking hole on the embedded rod 232, the position of the embedded rod 232 changes. And because the sizes of the toy injection molding parts are different, the heights of the embedded rod 232 rising to when it fits with the suction cup 222 are different. Therefore, the adjusted locking pin 243 at this time can adapt to different rising heights of the embedded rod 232 and lock its position, thereby ensuring that the pressing plate 234 stably presses and clamps the toy injection molding part.

[0047] During the process of the embedded rod 232 rising under pressure, the locking pin 243 will continuously abut against the side wall of the embedded rod 232 due to the action of the compressed pressure spring. When the embedded rod 232 moves upward to a certain extent, the locking hole will be at the same height as the locking pin 243. At this time, the locking pin 243 will immediately be inserted into the locking hole due to the elastic force of the pressure spring, so as to achieve the purpose of locking the position of the embedded rod 232, and at this time the pressing plate 234 can stably abut against the toy injection molding part.

[0048] When the clamping mechanism 2 is located directly above the U-shaped bearing plate 122 due to the driving action of the servo moving slide 131, control the electric push rod 21 to drive the vacuum generator 22, the mounting plate 221 and the pressure-receiving clamping member 23 to move downward again. At this time, the push rod 123 will push the wedge block 246 away from the toy injection molding part through the coordination inclined plane. When the wedge block 246 moves to a certain extent, the locking pin 243 will disengage from the locking hole on the embedded rod 232, so that the embedded rod 232 will immediately move downward under the elastic force of the vertical spring, and through the pressing action of the pressing rod 236 on the guiding groove 235, the vertical plate 233 will move away from the toy injection molding part, and the vertical plate 233 will drive the pressing plate 234 to move away from the toy injection molding part and release the positioning of the toy injection molding part.

[0049] Refer to Figure 5 、 Figure 8 and Figure 9, the positioning mechanism 3 includes square grooves 31 symmetrically formed on the left and right sides of the horizontal section of the U-shaped bearing plate 122. An L-shaped positioning rod 311 is connected in the square groove 31 through a horizontal spring. A pressure-limiting member 32 is arranged on the L-shaped positioning rod 311. A pressing structure is arranged between the pressure-limiting member 32 and the L-shaped connecting column 224. Follow-up positioning members 33 are symmetrically arranged on the front and back of the U-shaped bearing plate 122.

[0050] The pressure-limiting member 32 includes a positioning groove formed in the middle of the vertical section of the L-shaped positioning rod 311. A connecting plate 321 is vertically and slidably connected in the positioning groove. The vertical section of the L-shaped positioning rod 311 is threadedly connected with an adjusting screw rod II. The adjusting screw rod II is rotatably installed on the top of the connecting plate 321. A stabilizing structure for stabilizing the toy injection molding is installed on the top of the connecting plate 321; the stabilizing structure includes a square rod 322 fixed to the top of the connecting plate 321 and close to the horizontal spring. A triangular pressing head 323 is slidably sleeved on the square rod 322. A tension spring is connected between the triangular pressing head 323 and the connecting plate 321.

[0051] The pressing structure includes a triggering push rod 312 fixed to the vertical section of the L-shaped positioning rod 311 and away from the side of the follow-up positioning member 33. An inclined pressing rod 313 is fixed to the side of the bottom of the vertical section of the L-shaped connecting column 224 close to the mounting plate 221.

[0052] The positioning mechanism 3 is used to perform all-round positioning on the toy injection molding, so as to ensure the position accuracy of the toy injection molding during the assembly process of the assembly unit for the toy injection molding and parts, prevent the situation that the toy injection molding is skewed during the assembly process and affects the assembly process, and by driving the pressure-limiting member 32 through the pressing structure to cooperate with the follow-up positioning member 33 to synchronously position the toy injection molding, it can position and stabilize toy injection moldings of different sizes, further improve the applicability of the present invention, and at the same time, the height of the triangular pressing head 323 can be adjusted in advance according to the height of the toy injection molding through the adjusting screw rod II.

[0053] Specifically, when the control electric push rod 21 drives the vacuum generator 22, the mounting plate 221 and the pressure clamping member 23 to move downward this time, the inclined pressing rod 313 will first push the triggering push rod 312, so that the L-shaped positioning rod 311 moves away from the toy injection molding in advance and stretches the horizontal spring. At this time, the toy injection molding is located above the L-shaped positioning rod 311 and the follow-up positioning member 33. As the L-shaped positioning rod 311 moves away from the toy injection molding, the L-shaped positioning rod 311 will synchronously drive the follow-up positioning member 33 to move away from the toy injection molding.

[0054] After the toy injection molding part moves downward and presses against the top of the horizontal section of the U-shaped bearing plate 122, the electric push rod 21 is controlled again to drive the vacuum generator 22, the mounting plate 221 and the pressure-bearing clamping part 23 to move upward, so that the pressure-bearing clamping part 23 moves away from the toy injection molding part. At this time, the pressure-bearing clamping part 23 can no longer clamp the toy injection molding part. Therefore, the toy injection molding part that has been clamped and separated from the pressure-bearing clamping part 23 will stay on the top of the horizontal section of the U-shaped bearing plate 122. As the mounting plate 221 and the pressure-bearing clamping part 23 move upward to a certain extent, the oblique pressure rod 313 will release the push on the trigger push rod 312, so that the L-shaped positioning rod 311 returns to its original position due to the elastic force of the horizontal spring. During the process of the L-shaped positioning rod 311 returning to its initial position, the triangular pressure head 323 will first press against the toy injection molding part and move upward due to the pressing action of the toy injection molding part. Thus, the stable positioning of the toy injection molding part is achieved by the synchronous pressing of the triangular pressure heads 323 on both the left and right sides.

[0055] Refer to Figures 8 - 9 , the follower positioning part 33 includes a sliding column 331 that slides through the vertical section of the U-shaped bearing plate 122 from front to back. A horizontal plate 332 is fixed at one end of the sliding column 331 close to the L-shaped positioning rod 311, and a synchronous rod 333 is fixed at the other end of the sliding column 331 away from the L-shaped positioning rod 311. The synchronous rod 333 is an inverted T shape, and transmission structures are connected between the left and right sides of the lower end of the synchronous rod 333 and the horizontal section of the L-shaped positioning rod 311.

[0056] The transmission structure includes a coordination groove opened on the horizontal section of the U-shaped bearing plate 122. A driven push rod 334 is slidably connected in the coordination groove. The driven push rod 334 is fixedly connected with the synchronous rod 333. Push blocks 335 are symmetrically fixed on the front and back sides of the horizontal section of the L-shaped positioning rod 311. An inclined wedge guiding surface is provided between the push block 335 and the driven push rod 334. A reset structure is provided between the horizontal section of the U-shaped bearing plate 122 and the driven push rod 334. The reset structure includes a relief groove opened on the horizontal section of the U-shaped bearing plate 122 corresponding to the driven push rod 334. A square plate is fixed at the position of the driven push rod 334 corresponding to the relief groove, and a reset spring is connected between the square plate and the relief groove.

[0057] The follower positioning part 33 can stably clamp the front and rear positions of the toy injection molding part under the driving action of the L-shaped positioning rod 311, so as to cooperate with the triangular pressure head 323 to perform all-round precise positioning on the toy injection molding part. And because when the horizontal plate 332 presses against the front and rear sides of the toy injection molding part, the elastic force of the reset spring drives the horizontal plate 332 to press, so the horizontal plate 332 can cooperate with the triangular pressure head 323 to adapt to toy injection molding parts of different sizes for positioning, thereby improving the applicability of the present invention.

[0058] Specifically, when the L-shaped positioning rod 311 moves in advance in a direction away from the toy injection molded part, the L-shaped positioning rod 311 will synchronously drive the pushing block 335 to move in a direction away from the toy injection molded part. At this time, the pushing block 335 can drive the driven push rod 334 to move in a direction away from the toy injection molded part under the pushing action of the inclined wedge guiding surface on the driven push rod 334, so that the two driven push rods 334 synchronously drive the synchronous rod 333, the sliding column 331 and the horizontal plate 332 to move in a direction away from the toy injection molded part.

[0059] During the process of the L-shaped positioning rod 311 returning to its original position due to the elastic force of the horizontal spring, the pushing block 335 will slowly release the pushing action on the driven push rod 334. At this time, the driven push rod 334 will be slowly returned to its original position under the elastic force of the return spring. When the driven push rod 334 returns to its original position, the driven push rod 334 will synchronously drive the synchronous rod 333, the sliding column 331 and the horizontal plate 332 to move in a direction close to the toy injection molded part until the two horizontal plates 332 on the front and rear sides are pressed against the front and rear sides of the toy injection molded part. At this time, the toy injection molded part will be positioned in all directions, and the stability of the whole toy injection molded part during the subsequent assembly process of the toy injection molded part and the parts by the assembly unit is ensured.

[0060] The working steps of the present invention are as follows: In the first step, first rotate the adjusting screw rod according to the size of the toy injection molded part and adjust the up and down position of the moving plate 242 so that the locking pin 243 fits into the locking jack on the embedded rod 232 to adapt to its rising height. Subsequently, rotate the adjusting screw rod two according to the height of the toy injection molded part and adjust the height of the triangular pressing head 323.

[0061] In the second step, after the height of the triangular pressing head 323 is adjusted, control the servo moving slide 131 to drive the support frame 132, the connecting block 133 and the clamping mechanism 2 to move leftward together. When the clamping mechanism 2 is aligned with the toy injection molded part conveyed by the toy injection molded part conveying unit, stop the movement of the servo moving slide 131. Subsequently, control the electric push rod 21 to drive the vacuum generator 22, the mounting plate 221 and the pressure receiving clamping member 23 to move downward. When the pressure receiving clamping member 23 and the locking member 24 move to the position of the toy injection molded part, they will clamp the toy injection molded part until the suction cup 222 is pressed against the top of the toy injection molded part.

[0062] Step 3: After the suction cup 222 presses against the top of the toy injection molded part, control the vacuum generator 22 to cooperate with the ventilation pipe 223 and the suction cup 222 to adsorb and clamp the top of the toy injection molded part. During this process, the embedded rod 232 contacts the toy injection molded part conveying unit and is pressed upward. The pressing rod 236 causes the pressing plate 234 to press against the toy injection molded part through the pressing action on the guiding groove 235. And when the embedded rod 232 is pressed and rises to the same height as the locking jack and the locking pin 243, the locking pin 243 is inserted into the locking jack to achieve position locking, ensuring that the pressing plate 234 stably presses.

[0063] Step 4: After the suction cup 222 cooperates with the pressing plate 234 to complete the clamping of the toy injection molded part, drive the clamping mechanism 2 and the toy injection molded part to move to the position of the U-shaped bearing plate 122 on the front side through the servo moving slide 131. When the clamping mechanism 2 moves directly above the U-shaped bearing plate 122, control the electric push rod 21 to drive the vacuum generator 22 to move downward. The push rod 123 pushes the wedge block 246 through the coordination inclined plane to make the locking pin 243 disengage from the locking jack, and the embedded rod 232 moves downward under the action of the vertical spring to release the pressing. During this process, the oblique pressure rod 313 pushes the trigger push rod 312 to drive the L-shaped positioning rod 311 and the follower positioning part 33 to move. When the toy injection molded part presses against the U-shaped bearing plate 122, control the electric push rod 21 to drive the pressed clamping part 23 to move upward and separate from the toy injection molded part. At this time, the triangular pressing head 323 and the horizontal plate 332 will complete the all-round positioning of the toy injection molded part through the transmission structure.

[0064] Step 5: After the all-round positioning of the toy injection molded part is completed, control the electric slider to drive the U-shaped bearing plate 122 and the toy injection molded part to move backward and assemble through the assembly unit. After the toy injection molded part and the parts are assembled, drive the U-shaped bearing plate 122 and the toy injection molded part to move forward through the electric slider and re-clamp the toy injection molded part through the clamping mechanism 2. Finally, control the servo moving slide 131 to move the clamping mechanism 2 and the assembled toy injection molded part to the front side position and transfer them to the subsequent processing position.

[0065] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention, and still be covered by the protection scope of the present invention.

Claims

1. A mobile fixture for assembling toy injection molded parts, comprising a processing base plate, L-shaped support columns and an assembly table are respectively installed on the left and right sides of the top of the processing base plate, a slide rail is installed on the front side of the top of the assembly table, and a U-shaped bearing plate is connected to the slide rail through an electric slider to slide forward and backward, characterized in that: The top of the L-shaped support column is provided with a clamping mechanism through an adjustment assembly, and a positioning mechanism is provided on the U-shaped bearing plate; The clamping mechanism includes an electric push rod installed on the adjustment component, the pushing end of the electric push rod is connected to a mounting plate through a vacuum generator, a plurality of suction cups are evenly arranged circumferentially on the mounting plate, a ventilation pipe is connected between each suction cup and the vacuum generator, an L-shaped connecting column is symmetrically arranged on the mounting plate, and a pressure clamping piece and a locking piece are arranged on the vertical section of the L-shaped connecting column, and the pressure clamping piece cooperates with the locking piece to assist the suction cup in clamping the toy injection molded part; The positioning mechanism includes square grooves symmetrically opened on the left and right sides of the horizontal section of the U-shaped load-bearing plate, an L-shaped positioning rod is connected to the square groove through a horizontal spring, a pressure limiter is arranged on the L-shaped positioning rod, a pressing structure is arranged between the pressure limiter and the L-shaped connecting column, and follow-up positioning parts are symmetrically arranged on the front and back of the U-shaped load-bearing plate. The pressing structure can drive the pressure limiter to cooperate with the follow-up positioning part to synchronously position the toy injection molded part.

2. A mobile fixture for assembling toy injection molded parts according to claim 1, characterized in that: The pressure clamping part includes a vertical groove opened at the bottom of the vertical section of the L-shaped connecting column, the top of the vertical groove is connected to an embedded rod through a vertical spring, connecting grooves are opened on the front and rear sides of the vertical section of the L-shaped connecting column corresponding to the positions of the embedded rod, the connecting grooves are connected to the vertical groove, and a tightening structure for horizontally clamping the toy injection molded parts is set at the front and rear sides of the vertical section of the L-shaped connecting column corresponding to the positions of the connecting grooves.

3. A movable fixture for assembling toy injection molded parts according to claim 2, characterized in that: The clamping structure includes a horizontal slide groove arranged on the vertical section of the L-shaped connecting column and located on the upper and lower sides of the connecting groove. The two horizontal slide grooves are commonly connected to a vertical plate. Each vertical plate is connected to an elastic clamping plate on the side close to the mounting plate. The vertical plates are provided with guide grooves. The guide grooves on the vertical plates corresponding to the left and right positions are distributed in an inverted eight shape. Pressure rods are fixed to the corresponding guide grooves on the front and rear sides of the embedded rod.

4. A mobile fixture for assembling toy injection molded parts according to claim 1, characterized in that: The locking member includes a side sliding groove opened on the side of the vertical section of the L-shaped connecting column away from the mounting plate, a movable plate is slidably connected to the side sliding groove, an adjusting screw 1 is threadedly connected to the vertical section of the L-shaped connecting column, the adjusting screw 1 is rotatably installed at the bottom of the movable plate, a locking pin is penetrated by the movable plate for horizontal sliding, a locking socket corresponding to the locking pin is arranged on the pressure clamping member, and a limiting structure for limiting the locking pin is arranged on the side of the movable plate away from the mounting plate.

5. A mobile fixture for assembling toy injection molded parts according to claim 4, characterized in that: The limiting structure includes a U-shaped frame fixed to the side of the movable plate, a compression spring is connected between the locking pin and the vertical section of the U-shaped frame, a limiting rod is fixed to the end of the locking pin away from the mounting plate, and the limiting rod passes through the vertical section of the U-shaped frame and limits the locking pin, and a wedge block is fixed to the end of the limiting rod away from the mounting plate; push rods are symmetrically fixed to the top of the assembly table and located on the left and right sides of the slide rail, and a matching inclined surface for matching the wedge block is provided on the top of the push rod.

6. A movable fixture for assembling toy injection molded parts according to claim 1, characterized in that: The pressure limiting member includes a positioning groove opened in the middle of the vertical section of the L-shaped positioning rod, a connecting plate is vertically slidably connected in the positioning groove, an adjusting screw 2 is threadedly connected to the vertical section of the L-shaped positioning rod, and the adjusting screw 2 is rotatably installed on the top of the connecting plate. A stabilizing structure for stabilizing the toy injection molded part is installed on the top of the connecting plate.

7. A movable fixture for assembling toy injection molded parts according to claim 6, characterized in that: The stabilizing structure comprises a square rod fixed on the top of the connecting plate and close to the horizontal spring, a three-sided pressing head is slidingly sleeved on the square rod, and a tension spring is connected between the three-sided pressing head and the connecting plate.

8. A movable fixture for assembling toy injection molded parts according to claim 1, characterized in that: The pressing structure includes a trigger push rod fixed on the vertical section of the L-shaped positioning rod and away from the side of the follower positioning member, and an oblique pressing rod is fixed on the side of the bottom of the vertical section of the L-shaped connecting column close to the mounting plate.

9. A movable fixture for assembling toy injection molded parts according to claim 1, characterized in that: The follower positioning member includes a sliding column that slides back and forth and penetrates the vertical section of the U-shaped bearing plate. A horizontal plate is fixed to the end of the sliding column close to the L-shaped positioning rod, and a synchronization rod is fixed to the end of the sliding column away from the L-shaped positioning rod. The synchronization rod is an inverted T-shape, and a transmission structure is connected between the left and right sides of the lower end of the synchronization rod and the horizontal section of the L-shaped positioning rod.

10. A movable fixture for assembling toy injection molded parts according to claim 9, characterized in that: The transmission structure includes a coordination groove opened in the horizontal section of the U-shaped bearing plate, a driven push rod is slidably connected in the coordination groove, the driven push rod is fixedly connected to the synchronization rod, pushing blocks are symmetrically fixed on the front and rear sides of the horizontal section of the L-shaped positioning rod, an inclined wedge guide surface is arranged between the pushing block and the driven push rod, and a reset structure is arranged between the horizontal section of the U-shaped bearing plate and the driven push rod.

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