Welding fixture for manufacturing precise plastic hot runner mold

Abstract

The invention relates to the technical field of clamps, and discloses a welding clamp for precise plastic hot runner mold manufacturing, which comprises a platform and a servo motor fixedly connected to the outer wall of the platform, and the outer wall of the servo motor is fixedly connected with a transmission shaft, before equipment works, a motor of the servo motor is switched on, a mold is placed in the center of the equipment, and an equipment power supply is started; the object is ensured to be in a correct position of the clamping machine; when a pushing plate moves backwards to leave the range of an extruding plate, a gear rod can be driven by a coupling rod to extrude a pushing rod to move towards the middle, dies of different sizes and thicknesses are extruded, fixed and clamped, the two sides of the dies are clamped and stabilized through clamping mechanisms arranged on the two sides of the platform, and the dies of different sizes and the two sides are fixed while being fixed. Most of the surfaces of the dies are not shielded, and follow-up work such as welding and assembling of the dies is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of fixtures, in particular to a welding fixture for manufacturing precision plastic hot runner molds. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position to accept construction or inspection. It is also called a clamp. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture. Welding fixtures can accurately position and reliably clamp weldments, facilitate assembly and welding of weldments, and ensure the structural accuracy requirements of weldments. Therefore, in modern weldment production, actively promoting and using fixtures that are compatible with product structure is of great significance to improving product quality. When manufacturing hot runner molds, welding is usually used, and fixtures are needed at this time.

[0003] However, hot runner molds are mostly cross-shaped, and there are many arc-shaped positions on the outer wall. This makes it difficult to obtain stable clamping of the arc-shaped outer wall during clamping. As a result, when the welding rod contacts the surface, the mold may be deflected due to the influence of external forces, resulting in deviation in the welding position. For this reason, a welding fixture for the manufacture of precision plastic hot runner molds is proposed. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a welding fixture for manufacturing precision plastic hot runner molds, comprising a platform;

[0005] A platform, wherein an installation space is provided inside the platform;

[0006] The rotating mechanism is installed on the inner wall of the platform and provides driving force for the equipment;

[0007] The clamping mechanism is rotatably connected to the outer wall of the platform, and the clamping mechanism provides the basic clamping effect for the device;

[0008] Before the equipment works, turn on the servo motor, place the mold in the center of the equipment, and start the power of the equipment.

[0009] Preferably, the platform includes:

[0010] A driving assembly, which is fixedly connected to the inner wall of the platform through a driving member and is used to provide basic driving force;

[0011] The driving member includes a servo motor fixedly connected to the outer wall of the platform, and the outer wall of the servo motor is fixedly connected to a transmission shaft;

[0012] A moving assembly, wherein the moving assembly is fixedly connected to the outer wall of the driving assembly through a moving member;

[0013] The moving part comprises a sliding arm fixedly connected to the outer wall of the transmission shaft.

[0014] Preferably, the rotating mechanism comprises:

[0015] A transmission assembly, the transmission assembly is fixedly connected to the outer wall of the moving assembly through a transmission member;

[0016] The transmission member includes a structural frame fixedly connected to the outer wall of the sliding arm, the inner wall of the structural frame is fixedly connected to the gear 1, and the inner wall of the structural frame is fixedly connected to the spring telescopic rod;

[0017] A fixed assembly, the fixed assembly being fixedly connected to the outer wall of the transmission assembly through a fixing piece;

[0018] The fixing part includes a turntable fixedly connected to the outer wall of the structural frame, the outer wall of the turntable is rotatably connected to the outer shell, the inner wall of the outer shell is slidably connected to the connecting frame, the outer wall of the connecting frame is penetrated by a plurality of coupling rods, the outer walls of the plurality of coupling rods are fixedly connected to a push plate, and the outer wall of the connecting frame is fixedly connected to a spring return rod. The present invention addresses the problem that the clamp blocks the mold and affects the welding efficiency. Before the equipment works, the servo motor is turned on, the mold is placed in the center of the equipment, and the power of the equipment is started. The servo motor drives the driving assembly and the moving assembly. Because the threads set on the transmission shaft are on both sides, it drives the sliding arm to move toward the middle along the slide rail when rotating. When the mold is squeezed by the stabilizing plates at both ends, the stabilizing plate will move backward when it presses against the mold, driving the coupling rod to move backward.

[0019] Preferably, the clamping mechanism comprises:

[0020] A linkage assembly is rotatably connected to the outer wall of the transmission assembly through a linkage member, and is used to clamp the transmission assembly;

[0021] The linkage member includes a half gear rotatably connected to the inner wall of the housing, the inner wall of the housing is provided with a slide groove, the outer wall of the slide groove is slidably connected to a gear rod, the gear rod is meshed with the outer wall of the half gear, the outer wall of the half gear is fixedly connected to a cross bar, and the end of the cross bar away from the half gear is rotatably connected to the connecting rod;

[0022] A clamping assembly, which is fixedly connected to the inner wall of the linkage assembly through a clamping piece to complete the clamping step;

[0023] The clamping member comprises a spring return rod 1 fixedly connected to the inner wall of the shell, one end of the spring return rod 1 away from the shell is fixedly connected to the extrusion plate, and the inner wall of the shell is fixedly connected to a plurality of hydraulic connectors.

[0024] Preferably, the drive assembly includes a slide rail fixedly connected to the outer wall of the platform.

[0025] Preferably, the moving assembly includes a clockwise thread fixedly connected to the outer wall of the transmission shaft, the outer wall of the transmission shaft is fixedly connected with a counterclockwise thread, and the outer wall of the platform is slidably connected to the inner wall of the sliding arm.

[0026] Preferably, the transmission assembly includes a pin fixedly connected to one end of the spring telescopic rod away from the structural frame, the outer walls of several gears 2 are meshed with the outer wall of gear 1, the inner wall of the turntable is rotatably connected to several gears 2, the outer wall of the pin is fixedly connected to the moving block, and the outer wall of the pin is fitly connected to the inner wall of the turntable. The above-mentioned shell rotation characteristics are utilized to fix it through the setting of the transmission assembly. Before the machine performs the clamping work, the pin will now be at the inner wall of the turntable, making it unable to rotate. After the clamping mold is fixed, the inclined slot rod is driven backward by the characteristic of the coupling rod moving backward, so that the inclined slot rod contacts the surface of the moving block, thereby driving the moving block to move downward so that its pin leaves the surface of the turntable under the drive of the moving block, losing the restriction on the turntable and allowing it to rotate, thereby processing multiple surfaces of the module. Before the clamping work is completed, the turntable will not produce a rotation effect, thereby ensuring the accuracy of the clamping process and preventing rotation during the clamping process, which causes damage to the mold.

[0027] Preferably, the fixing assembly includes a bevel rod fixedly connected to the coupling rod away from one end of the push plate, and a spring return rod fixedly connected to the inner wall of the shell away from one end of the connecting frame. Utilizing the characteristics of the rotating mechanism, after the clamping and fixing is set, the transmission assembly will perform subsequent work on the module after fixing the module. When it is necessary to process the back side or the axial surface of the module, a meshing connection is achieved by fixing the gear 1 on the structural frame and the gear 2 on the turntable, so that the shell fixedly connected to the turntable can be rotated, so that the clamped mold can be rotated. By rotating the fixture, multiple surfaces of the workpiece can be processed in one clamping. When processing complex parts, multiple surfaces that originally required multiple clampings to be processed can be rotated in the horizontal direction. After one clamping, they can be processed in sequence by rotating the fixture, which greatly saves clamping time and improves processing efficiency.

[0028] Preferably, the linkage assembly includes a second slide groove opened on the inner wall of the shell, the outer wall of the second slide groove is slidably connected to a push rod, the outer wall of the second slide groove is slidably connected to the outer wall of the gear rod, and the end of the connecting rod away from the cross bar is rotatably connected to the outer wall of the connecting frame.

[0029] Preferably, the clamping assembly includes a hydraulic rod slidably connected to the end of the hydraulic connector away from the coupling rod, the outer wall of the coupling rod is slidably connected to the outer wall of the hydraulic connector, the end of the hydraulic rod away from the hydraulic connector is rotatably connected to a four-pronged rotating platform, the outer wall of the four-pronged rotating platform is rotatably connected to a plurality of extrusion rods, the bottom of the extrusion rod is rotatably connected to a stabilizing plate, and when the coupling rod moves, it drives the connecting rods rotatably connected on both sides to drive backward, thereby driving the cross bar and the half gear to rotate, and when the half gear rotates, it drives the gear rod to slide a space toward the center of the equipment and then drives the push rod to move, and when the push rod pushes, it drives the extrusion plate to the center The gear rod is driven by the coupling rod to move toward the center when it moves backward. When the push plate does not leave the extrusion plate area, the extrusion plates on both sides cannot move toward the center, preventing the mold from being extruded in advance before reaching the specified position, resulting in misalignment of the clamping position or unstable clamping. When the push plate is extruding, it will move backward when it presses against the mold. When the push plate moves backward and leaves the range of the extrusion plate, the gear rod will squeeze the push rod to move toward the middle under the drive of the coupling rod, pushing the extrusion plate toward the middle for extrusion, so as to extrude and fix molds of different sizes and thicknesses. The gear rod is driven by the coupling rod to move toward the center, pushing the extrusion plate to extrude, so as to extrude and fix molds of different sizes and thicknesses. The gear rod is driven by the coupling rod to move toward the center, pushing the extrusion plate to extrude, so as to extrude and fix molds of different sizes and thicknesses. The clamping mechanism can firmly clamp both sides of the mold, so that both sides of molds of different sizes are fixed while most of the mold surface is not blocked, which is convenient for subsequent welding and assembly of the mold. By utilizing the characteristic that the coupling rod moves backward when working, the coupling rod presses against the hydraulic connector when moving backward, so that the hydraulic connector at the other end of the hydraulic connector pushes the hydraulic pressure on the upper and lower sides of the shell to move toward the center. The hydraulic connector moves the hydraulic rod toward the center. A four-pronged rotating platform is provided at the lower end of the hydraulic rod. The upper and lower surfaces of the mold will have different degrees of inclination. The four-pronged rotating platform is connected to the hydraulic rod to change the extrusion rod and the hydraulic pressure. The four-pronged rotating platform is connected in a rolling manner, so that the stabilizing plate at the lower end of the extrusion rod fits the mold surface. The rotatable fitting mold can evenly apply the fixing force to the mold surface at different angles to avoid point contact. In point contact, the contact area is small and the pressure per unit area is high, which can easily cause indentations, scratches and other damages on the workpiece surface, affecting the appearance quality and surface accuracy of the workpiece. For some workpieces with high surface quality requirements, such as precision molds, this damage may cause the workpiece to be scrapped. After the equipment is fixed, the above-mentioned components are used to ensure that unnecessary shaking is avoided during welding of the mold, thereby affecting subsequent finishing.

[0030] The present invention has the following beneficial effects:

[0031] (1) The present invention addresses the problem that the fixture blocks the mold and affects the welding efficiency. Before the equipment works, the servo motor is connected, the mold is placed in the center of the equipment, and the power of the equipment is turned on. The servo motor drives the driving component and the moving component. Because the threads set on the transmission shaft are on both sides, the sliding arm is driven to move toward the middle along the slide rail when rotating. When the coupling rod moves backward, it drives the gear rod to move toward the center. When the push plate leaves the extrusion plate area, the extrusion plates on both sides cannot move toward the center, preventing the mold from being extruded in advance before reaching the specified position, resulting in the problem of misalignment of the clamping position or unstable clamping; when the push plate is extruding, it will move backward when it presses against the mold. When the push plate moves backward and leaves the range of the extrusion plate, the gear rod will be driven by the coupling rod to squeeze the push rod to move toward the middle, pushing the extrusion plate to squeeze toward the middle, and performing extrusion and fixed clamping for molds of different sizes and thicknesses. The clamping mechanism set on both sides of the platform can clamp both sides of the mold firmly, and can provide uniform clamping force according to the size and shape of the workpiece, reducing the influence of external forces on the mold during welding.

[0032] (2) The present invention utilizes the characteristic of the coupling rod moving backward during operation. When the coupling rod moves backward, it presses against the hydraulic connector. The clamping assembly will tilt to different degrees according to the upper and lower surfaces of the mold. The rotatable parts fit the surfaces of the mold at different angles, so that the fixing force is evenly applied to the mold surface, avoiding point contact, high pressure per unit area, and easy to cause indentations, scratches and other damages on the workpiece surface.

[0033] (3) The present invention utilizes the characteristics of the rotating mechanism. After the clamping and fixing are set, the transmission component will perform subsequent work on the module after fixing the module. When the back or axial surface of the module needs to be processed, the gear 1 fixedly connected to the structural frame and the gear 2 rotatably connected to the turntable are engaged, so that the shell fixedly connected to the turntable can be rotated, so that the clamped mold can be rotated. By rotating the clamp, multiple surfaces of the workpiece can be processed in one clamping. When processing complex parts, multiple surfaces that originally required multiple clampings to be processed can be rotated in the horizontal direction. After one clamping, they can be processed in sequence by rotating the clamp, saving clamping time and improving processing efficiency.

[0034] (4) The present invention utilizes the rotating characteristic of the above-mentioned shell and fixes it through the setting of the transmission component. Before the machine is not working, the pin will be on the inner wall of the turntable, making it unable to rotate. After the mold is fixed, the characteristic of the coupling rod moving backward drives the inclined slot rod to move backward, so that the inclined slot rod contacts the surface of the moving block, thereby driving the moving block to move downward so that the pin leaves the surface of the turntable under the drive of the moving block, losing the restriction on the turntable and allowing it to rotate, thereby processing multiple surfaces of the module. Before the clamping work is completed, the turntable will not produce a rotation effect, thereby ensuring the accuracy of the clamping process and preventing rotation during the clamping process to cause damage to the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0039] Figure 4 This is a schematic diagram of the interior of the linkage assembly of the present invention;

[0040] Figure 5 This is a schematic diagram of the interior of the rotating assembly of the present invention;

[0041] Figure 6 For the present invention Figure 5 A is an enlarged schematic diagram;

[0042] Figure 7 It is a schematic cross-sectional view of the overall structure of the present invention;

[0043] Figure 8 This is a schematic diagram of the interior of the rotating mechanism of the present invention;

[0044] Figure 9 For the present invention Figure 8 A magnified schematic diagram of B in the middle;

[0045] Figure 10 This is a schematic diagram of the interior of the clamping assembly of the present invention;

[0046] Figure 11 This is a schematic diagram of the interior of the clamping assembly of the present invention;

[0047] Figure 12 For the present invention Figure 11 A magnified schematic diagram of C in the middle.

[0048] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0049] In the figure: 1. Platform; 11. Drive assembly; 12. Moving assembly; 111. Servo motor; 112. Drive shaft; 113. Slide rail; 121. Clockwise thread; 122. Counterclockwise thread; 123. Sliding arm; 2. Rotating mechanism; 21. Drive assembly; 22. Fixed assembly; 211. Structural frame; 212. Gear 1; 213. Gear 2; 214. Spring telescopic rod; 215. Latch; 216. Turntable; 217. Moving block; 222. Coupling rod; 223. Spring return rod ; 224. Bevel rod; 225. Connecting frame; 226. Push plate; 3. Clamping mechanism; 31. Linkage assembly; 32. Clamping assembly; 221. Housing; 312. Slide 1; 313. Half gear; 314. Cross bar; 315. Connecting rod; 316. Gear rod; 317. Slide 2; 318. Push rod; 321. Spring return rod 1; 322. Extrusion plate; 323. Hydraulic connector; 324. Four-pronged rotating platform; 325. Extrusion rod; 326. Stabilizing plate; 327. Hydraulic rod. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] For example 1, please refer to Figures 1-8 The present invention is a welding fixture for manufacturing precision plastic hot runner molds, comprising a platform 1:

[0052] Platform 1, wherein an installation space is provided inside the platform 1;

[0053] The rotating mechanism 2 is installed on the inner wall of the platform 1;

[0054] The clamping mechanism 3 is rotatably connected to the outer wall of the platform 1 .

[0055] Platform 1 includes:

[0056] The driving assembly 11 is fixedly connected to the inner wall of the platform 1 through a driving member and is used to provide basic driving force;

[0057] The driving member includes a servo motor 111 fixedly connected to the outer wall of the platform 1, and a transmission shaft 112 is fixedly connected to the outer wall of the servo motor 111;

[0058] The moving assembly 12 is fixedly connected to the outer wall of the driving assembly 11 through a moving member;

[0059] The moving member includes a sliding arm 123 fixedly connected to the outer wall of the transmission shaft 112 .

[0060] The rotating mechanism 2 includes:

[0061] The transmission assembly 21 is fixedly connected to the outer wall of the moving assembly 12 through a transmission member;

[0062] The transmission member includes a structural frame 211 fixedly connected to the outer wall of the sliding arm 123, a gear 1 212 fixedly connected to the inner wall of the structural frame 211, and a spring telescopic rod 214 fixedly connected to the inner wall of the structural frame 211;

[0063] A fixing assembly 22, the fixing assembly 22 is fixedly connected to the outer wall of the transmission assembly 21 through a fixing member;

[0064] The fixing part includes a turntable 216 fixedly connected to the outer wall of the structural frame 211, the outer wall of the turntable 216 is rotatably connected to the shell 221, and the inner wall of the shell 221 is slidably connected to the connecting frame 225, the outer wall of the connecting frame 225 is penetrated by a plurality of coupling rods 222, the outer walls of the plurality of coupling rods 222 are fixedly connected to the push plates 226, and the outer wall of the connecting frame 225 is fixedly connected to the spring return rod 223. The present invention addresses the problem that the clamp blocks the mold and affects the welding efficiency. Before the equipment works, the motor of the servo motor 111 is turned on, the mold is placed in the center of the equipment, and the power of the equipment is started. The servo motor 111 drives the driving assembly 11 and the moving assembly 12. Because the threads set on the transmission shaft 112 are on both sides, the sliding arm 123 is driven to move toward the middle along the slide rail 113 during rotation. When the mold is squeezed by the stabilizing plates 226 at both ends, the stabilizing plate 226 will move backward when it presses against the mold, driving the coupling rod 222 to move backward.

[0065] The clamping mechanism 3 comprises:

[0066] The linkage assembly 31 is rotatably connected to the outer wall of the transmission assembly 21 through a linkage member, and is used to clamp the transmission assembly;

[0067] The linkage member includes a half gear 313 rotatably connected to the inner wall of the housing 221. The inner wall of the housing 221 is provided with a slide groove 312. The outer wall of the slide groove 312 is slidably connected to a gear rod 316. The gear rod 316 is meshed with the outer wall of the half gear 313. The outer wall of the half gear 313 is fixedly connected to a cross bar 314. The end of the cross bar 314 away from the half gear 313 is rotatably connected to a connecting rod 315.

[0068] The clamping assembly 32 is fixedly connected to the inner wall of the linkage assembly 31 through a clamping member to complete the clamping step;

[0069] The clamping member includes a spring return rod 321 fixedly connected to the inner wall of the shell 221 , an end of the spring return rod 321 away from the shell 221 is fixedly connected to an extrusion plate 322 , and a plurality of hydraulic connectors 323 are fixedly connected to the inner wall of the shell 221 .

[0070] The driving assembly 11 includes a slide rail 113 fixedly connected to the outer wall of the platform 1 .

[0071] The moving assembly 12 includes a clockwise thread 121 fixedly connected to the outer wall of the transmission shaft 112 , the outer wall of the transmission shaft 112 is fixedly connected with a counterclockwise thread 122 , and the outer wall of the platform 1 is slidably connected to the inner wall of the sliding arm 123 .

[0072] The transmission assembly 21 includes a latch 215 fixedly connected to one end of the spring telescopic rod 214 away from the structural frame 211, the outer walls of several gears 213 are meshed with the outer wall of gear 1 212, the inner wall of the turntable 216 is rotatably connected to several gears 213, the outer wall of the latch 215 is fixedly connected to a moving block 217, the outer wall of the latch 215 is fitted with the inner wall of the turntable 216, and the housing 221 is fixed by the setting of the transmission assembly 21. Before the machine performs the clamping work, the latch 215 will now be at the inner wall of the turntable 216, so that it has no The method of rotation is that after the mold is fixed and clamped, the characteristic of the coupling rod 222 moving backward drives the inclined slot rod 224 to move backward, so that the inclined slot rod 224 contacts the surface of the moving block 217, thereby driving the moving block 217 to move downward so that its pin 215 leaves the surface of the turntable 216 under the drive of the moving block 217, and loses the restriction on the turntable 216, so that it can rotate, thereby processing multiple surfaces of the module. Before the clamping work is completed, the turntable 216 will not produce a rotation effect, thereby ensuring the accuracy of the clamping process and preventing rotation during the clamping process to cause damage to the mold.

[0073] For example 2, please refer to Figures 9-12The present invention is a welding fixture for manufacturing precision plastic hot runner molds. On the basis of embodiment 1, the fixing assembly 22 includes a bevel rod 224 fixedly connected to the coupling rod 222 away from the push plate 226 at one end, and a spring return rod 223 fixedly connected to the inner wall of the shell 221 at one end away from the connecting frame 225. By utilizing the characteristics of the rotating mechanism 2, after the clamping and fixing is set, the transmission assembly 21 will perform subsequent work on the module after fixing the module. When the back or axial surface of the module needs to be processed, the gear 1 212 fixedly connected to the structural frame 211 and the gear 2 213 rotatably connected to the turntable 216 are engaged, so that the shell 221 fixedly connected to the turntable 216 can be rotated, so that the clamped mold can be rotated. By rotating the fixture, multiple surfaces of the workpiece can be processed in one clamping. When processing complex parts, multiple surfaces that originally required multiple clampings to be processed can be rotated in the horizontal direction. After one clamping, the multiple surfaces can be processed in sequence by the rotating fixture, which greatly saves clamping time and improves processing efficiency.

[0074] The linkage assembly 31 includes a second slide groove 317 opened on the inner wall of the shell 221, and the outer wall of the second slide groove 317 is slidably connected to the push rod 318. The outer wall of the second slide groove 317 is slidably connected to the outer wall of the gear rod 316, and the end of the connecting rod 315 away from the cross bar 314 is rotatably connected to the outer wall of the connecting frame 225.

[0075] The clamping assembly 32 includes a hydraulic rod 327 slidably connected to the end of the hydraulic connector 323 away from the coupling rod 222. The outer wall of the coupling rod 222 is slidably connected to the outer wall of the hydraulic connector 323. The end of the hydraulic rod 327 away from the hydraulic connector 323 is rotatably connected to a four-pronged rotating platform 324. The outer wall of the four-pronged rotating platform 324 is rotatably connected to a plurality of extrusion rods 325. The bottom of the extrusion rod 325 is rotatably connected to a stabilizing plate 326. When the coupling rod 222 moves, it drives the connecting rods 315 rotatably connected on both sides to drive backward, thereby driving the cross bar 314 and the half gear 313 to rotate. When the half gear 313 rotates, it drives the gear rod 316 to slide toward the center of the equipment for a space and then drives the push rod 318 When the push rod 318 pushes, the extrusion plate 322 is driven to extrude toward the center, thereby fixing both sides of the mold. Through the above components, when the coupling rod 222 moves backward, the gear rod 316 is driven to move toward the center. When the pushing plate 226 has not left the extrusion plate 322 area, the extrusion plates 322 on both sides cannot move toward the center, preventing the mold from being extruded in advance before reaching the specified position, resulting in misalignment of the clamping position or unstable clamping. When the pushing plate 226 is extruding, it will move backward when it presses against the mold. When the pushing plate 226 moves backward and leaves the range of the extrusion plate 322, the gear rod 316 will be driven by the coupling rod 222 to squeeze the push rod 318 to move toward the middle, pushing the extrusion plate 322 to extrude toward the middle, for different sizes. The thickness of the mold is squeezed and fixed, and the clamping mechanism 3 set on both sides of the platform 1 is used to clamp the two sides of the mold firmly, so that the two sides of the molds of different sizes are fixed while most of the mold surface is not blocked, which is convenient for subsequent welding and assembly of the mold. By utilizing the characteristic of the above-mentioned coupling rod 222 moving backward when working, the coupling rod 222 presses against the hydraulic connector 323 when moving backward, so that the hydraulic connector 323 at the other end connected to the hydraulic connector 323 pushes the hydraulic pressure on the upper and lower sides of the shell 221 to move toward the center, and the hydraulic connector 323 causes the hydraulic rod 327 to move toward the center. The lower end of the hydraulic rod 327 is provided with a four-pronged rotating platform 324, and the upper and lower surfaces of the mold will have different degrees of inclination. The rotating platform 324 is rotatably connected to the hydraulic rod 327, changing the form of rolling connection between the extrusion rod 325 and the four-pronged rotating platform 324, so that the stabilizing plate 326 at the lower end of the extrusion rod 325 fits the mold surface. Through the rotatable fitting mold, the fixing force is evenly applied to the mold surface for surfaces at different angles, avoiding point contact. During point contact, the contact area is small and the pressure per unit area is large, which can easily cause indentations, scratches and other damages on the workpiece surface, affecting the appearance quality and surface accuracy of the workpiece. For some workpieces with high surface quality requirements, precision molds, etc., such damage may cause the workpiece to be scrapped. After the equipment is fixed, the above-mentioned components are used to ensure that unnecessary shaking is avoided when welding the mold, thereby affecting subsequent fine processing.

[0076] A specific application of this embodiment is: before the equipment works, the motor of the servo motor 111 is turned on, the mold is placed in the center of the equipment, and the power of the equipment is turned on. The servo motor 111 drives the driving component 11 and the moving component 12. Because the threads provided on the transmission shaft 112 are on both sides, the sliding arm 123 is driven to move toward the middle along the slide rail 113 during rotation. When the mold is squeezed by the stabilizing plates 226 at both ends, the stabilizing plates 226 will move backward when pressing against the mold, driving the coupling rod 222 to move backward. When the coupling rod 222 moves, it will drive the connecting rod 315 connected in rotation on both sides backward, thereby driving the cross bar 314 and the half gear 313 to rotate. When the half gear 313 rotates, it drives the gear rod 316 to slide toward the center of the equipment for a space and then drives the push rod 318 to move. When the push rod 318 pushes, it drives the extrusion plate 322 to be squeezed toward the center, thereby fixing the mold. When the push plate 226 moves backward and leaves the range of the extrusion plate 322, the gear rod 316 will squeeze the push rod 318 to move toward the middle under the drive of the coupling rod 222, pushing the extrusion plate 322 to squeeze toward the middle, and performing extrusion, fixing and clamping for molds of different sizes and thicknesses. The clamping mechanisms 3 arranged on both sides of the platform 1 can clamp both sides of the mold firmly, so that both sides of the molds of different sizes are fixed while most of the mold surface is not blocked, which is convenient for subsequent welding and assembly of the mold.

[0077] By utilizing the characteristic that the coupling rod 222 moves backward when working, the coupling rod 222 presses against the hydraulic connector 323 when moving backward, so that the hydraulic connector 323 at the other end connected to the hydraulic connector 323 pushes the hydraulic pressure on the upper and lower sides of the housing 221 to move toward the center, and the hydraulic connector 323 moves the hydraulic rod 327 toward the center. The lower end of the hydraulic rod 327 is provided with a four-pronged rotating platform 324. The upper and lower surfaces of the mold will have different degrees of inclination. The four-pronged rotating platform 324 is rotatably connected to the hydraulic rod 327, changing the form of the rolling connection between the extrusion rod 325 and the four-pronged rotating platform 324. , so that the stabilizing plate 326 at the lower end of the extrusion rod 325 fits the mold surface, and the fixing force is evenly applied to the mold surface by the rotatable fitting mold to surfaces at different angles, avoiding point contact. During point contact, the contact area is small and the pressure per unit area is large, which can easily cause indentations, scratches and other damages on the workpiece surface, affecting the appearance quality and surface accuracy of the workpiece. For some workpieces with high surface quality requirements, precision molds, etc., this damage may cause the workpiece to be scrapped. When the equipment is fixed, the above-mentioned components are used to ensure that unnecessary shaking is avoided when welding the mold, thereby affecting subsequent fine processing.

[0078] By utilizing the characteristics of the rotating mechanism 2, after the clamping and fixing is set, the transmission component 21 will perform subsequent work on the module after fixing the module. When the back or axial surface of the module needs to be processed, the gear 1 212 fixedly connected to the structural frame 211 and the gear 2 213 rotatably connected to the turntable 216 are engaged to achieve a meshing connection, so that the shell 221 fixedly connected to the turntable 216 can be rotated, so that the clamped mold can be rotated. By rotating the fixture, multiple surfaces of the workpiece can be processed in one clamping. When processing complex parts, multiple surfaces that originally required multiple clampings to be processed can be rotated in the horizontal vertical direction. After one clamping, they can be processed in sequence by rotating the fixture, which greatly saves clamping time and improves processing efficiency.

[0079] By utilizing the rotating characteristics of the above-mentioned shell 221, it is fixed through the setting of the transmission component 21. Before the machine performs the clamping work, the pin 215 will now be on the inner wall of the turntable 216, preventing it from rotating. After the mold is fixed and clamped, the backward movement of the coupling rod 222 drives the inclined slot rod 224 to move backward, so that the inclined slot rod 224 contacts the surface of the moving block 217, thereby driving the moving block 217 to move downward so that its pin 215 leaves the surface of the turntable 216 under the drive of the moving block 217, losing the restriction on the turntable 216 and allowing it to rotate, thereby processing multiple surfaces of the module. Before the clamping work is completed, the turntable 216 will not produce a rotation effect, thereby ensuring the accuracy of the clamping process and preventing rotation during the clamping process to cause damage to the mold.

[0080] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding fixture for manufacturing precision plastic hot runner molds, platform (1), characterized in that, Also includes: A platform (1), wherein an installation space is provided inside the platform (1); A rotating mechanism (2), wherein the rotating mechanism (2) is mounted on the inner wall of the platform (1); A clamping mechanism (3), wherein the clamping mechanism (3) is rotatably connected to the outer wall of the platform (1).

2. A welding fixture for manufacturing precision plastic hot runner molds according to claim 1, characterized in that: The platform (1) comprises: A drive assembly (11), wherein the drive assembly (11) is fixedly connected to the inner wall of the platform (1) via a drive member and is used to provide a basic driving force; The driving member comprises a servo motor (111) fixedly connected to the outer wall of the platform (1), and the outer wall of the servo motor (111) is fixedly connected to a transmission shaft (112); A moving assembly (12), wherein the moving assembly (12) is fixedly connected to the outer wall of the driving assembly (11) via a moving member; The moving part comprises a sliding arm (123) fixedly connected to the outer wall of the transmission shaft (112).

3. The welding fixture for manufacturing precision plastic hot runner molds according to claim 2, characterized in that: The rotating mechanism (2) comprises: A transmission assembly (21), wherein the transmission assembly (21) is fixedly connected to the outer wall of the moving assembly (12) via a transmission member; The transmission member comprises a structural frame (211) fixedly connected to the outer wall of the sliding arm (123), a gear 1 (212) fixedly connected to the inner wall of the structural frame (211), and a spring telescopic rod (214) fixedly connected to the inner wall of the structural frame (211); A fixed assembly (22), wherein the fixed assembly (22) is fixedly connected to the outer wall of the transmission assembly (21) via a fixing member; The fixing member includes a turntable (216) fixedly connected to the outer wall of the structural frame (211); the outer wall of the turntable (216) is rotatably connected to the outer shell (221); the inner wall of the outer shell (221) is slidably connected to the connecting frame (225); the outer wall of the connecting frame (225) is connected to a plurality of coupling rods (222); the outer walls of the plurality of coupling rods (222) are fixedly connected to the push plates (226); and the outer wall of the connecting frame (225) is fixedly connected to the spring return rod (223).

4. The welding fixture for manufacturing precision plastic hot runner molds according to claim 3, characterized in that: The clamping mechanism (3) comprises: A linkage assembly (31), the linkage assembly (31) being rotatably connected to the outer wall of the transmission assembly (21) via a linkage member, and being used to clamp the transmission assembly; The linkage member includes a half gear (313) rotatably connected to the inner wall of the housing (221); a slide groove (312) is provided on the inner wall of the housing (221); a gear rod (316) is slidably connected to the outer wall of the slide groove (312); the gear rod (316) is meshedly connected to the outer wall of the half gear (313); a cross bar (314) is fixedly connected to the outer wall of the half gear (313); and an end of the cross bar (314) away from the half gear (313) is rotatably connected to a connecting rod (315); A clamping assembly (32), wherein the clamping assembly (32) is fixedly connected to the inner wall of the linkage assembly (31) via a clamping member, and is used to complete the clamping step; The clamping member includes a spring return rod (321) fixedly connected to the inner wall of the housing (221), an end of the spring return rod (321) away from the housing (221) is fixedly connected to an extrusion plate (322), and the inner wall of the housing (221) is fixedly connected to a plurality of hydraulic connectors (323).

5. The welding fixture for manufacturing precision plastic hot runner molds according to claim 4, characterized in that: The driving assembly (11) comprises a slide rail (113) fixedly connected to the outer wall of the platform (1).

6. The welding fixture for manufacturing precision plastic hot runner molds according to claim 5, characterized in that: The moving assembly (12) includes a clockwise thread (121) fixedly connected to the outer wall of the transmission shaft (112), the outer wall of the transmission shaft (112) is fixedly connected to a counterclockwise thread (122), and the outer wall of the platform (1) is slidably connected to the inner wall of the sliding arm (123).

7. The welding fixture for manufacturing precision plastic hot runner molds according to claim 6, characterized in that: The transmission assembly (21) includes a latch (215) fixedly connected to one end of the spring telescopic rod (214) away from the structural frame (211), the outer walls of a plurality of gears 2 (213) meshingly connected with the outer wall of gear 1 (212), the inner wall of the turntable (216) rotatably connected with a plurality of gears 2 (213), the outer wall of the latch (215) fixedly connected with a moving block (217), and the outer wall of the latch (215) fits the inner wall of the turntable (216).

8. The welding fixture for manufacturing precision plastic hot runner molds according to claim 7, characterized in that: The fixing assembly (22) includes an inclined slot rod (224) fixedly connected to one end of the coupling rod (222) away from the push plate (226), and the spring return rod (223) is fixedly connected to the inner wall of the housing (221) at one end away from the connecting frame (225).

9. A welding fixture for manufacturing precision plastic hot runner molds according to claim 8, characterized in that: The linkage assembly (31) includes a second slide groove (317) provided on the inner wall of the housing (221), the outer wall of the second slide groove (317) is slidably connected to a push rod (318), the outer wall of the second slide groove (317) is slidably connected to the outer wall of the gear rod (316), and the end of the connecting rod (315) away from the cross bar (314) is rotatably connected to the outer wall of the connecting frame (225).

10. The welding fixture for manufacturing precision plastic hot runner mold according to claim 9, characterized in that: The clamping assembly (32) includes a hydraulic rod (327) slidably connected to an end of a hydraulic connector (323) away from the coupling rod (222), an outer wall of the coupling rod (222) is slidably connected to an outer wall of the hydraulic connector (323), an end of the hydraulic rod (327) away from the hydraulic connector (323) is rotatably connected to a four-pronged rotating platform (324), an outer wall of the four-pronged rotating platform (324) is rotatably connected to a plurality of extrusion rods (325), and the bottom of the extrusion rod (325) is rotatably connected to a stabilizing plate (326).

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