Seat cushion fixing pin blank extrusion forming device

Abstract

The invention belongs to the field of seat cushion fixing pin machining, and provides a seat cushion fixing pin blank extrusion forming device which comprises a workbench, two fixing seats are fixedly connected to the workbench, a fixing pipe is rotationally connected between the two fixing seats, and a station disc is fixedly connected to the fixing pipe. The working table is provided with a movable seam matched with the station disc, the station disc is provided with a preformed hole assembly, the preformed hole assembly is provided with a plurality of output ends, and the output ends of the preformed hole assembly are evenly distributed around the axis of the station disc. By arranging the separable modules and the preformed hole assembly, an aluminum alloy blank can be directly extruded and formed, after forming, the two modules are separated, the fixing pin body can be conveniently taken down from the preformed hole assembly, then tapping is conducted on a hole in the bottom of the fixing pin body, and machining of the taper pin can be completed; the device saves a large amount of machining time and improves the machining efficiency of the taper pin.

Description

Technical Field

[0001] The invention belongs to the field of seat cushion fixing pin processing, and in particular relates to a seat cushion fixing pin blank extrusion molding device. Background Art

[0002] Seat cushion fixing pins, also known as positioning pins, are fasteners used for fixing and assembling positioning. Existing seat cushion fixing pins are mostly made of aluminum alloy. Seat cushion fixing pins are mainly divided into two basic forms: cylindrical pins and conical pins, each of which has a tapping variant. Figure 1 The following is a tapered pin with a hole in the bottom and tapped in the hole. These dowel pins are designed and functioned to ensure accurate positioning and connection between two or more parts.

[0003] Seat cushion fixing pins are widely used in various occasions that require fixing and assembly positioning, especially in the assembly of car seats. For example, in the skeleton structure of car seats, seat cushion fixing pins are often used to connect the seat back and the seat cushion to ensure the stability and comfort of the seat.

[0004] The existing processing method of conical pins is turning or milling, and then drilling and tapping at the bottom. The processing process is extremely cumbersome, which greatly reduces the processing efficiency of conical pins. Due to the irregular shape of the conical pins, the existing extrusion molding device is not suitable for the processing of conical pins, especially the blanking process. Its unique shape prevents it from automatically falling off the device. Therefore, it is necessary to redesign an extrusion molding device suitable for conical pins. Summary of the invention

[0005] The purpose of the present invention is to provide a seat cushion fixing pin blank extrusion molding device, aiming to solve the technical problem that the existing extrusion molding device in the prior art is not suitable for conical pin processing.

[0006] The present invention is implemented in this way. A seat cushion fixing pin blank extrusion molding device includes a workbench, two fixing seats are fixedly connected to the workbench, a fixing pipe is rotatably connected between the two fixing seats, a station disk is fixedly connected to the fixing pipe, a movable seam adapted to the station disk is opened on the workbench, a reserved hole assembly is installed on the station disk, the reserved hole assembly is provided with a plurality of output ends, and the plurality of output ends of the reserved hole assembly are uniformly distributed around the axis of the station disk. In this embodiment, the output ends of the reserved hole assembly are 4, and also include:

[0007] A driving mechanism, wherein the driving mechanism is mounted on a workbench, an output end of the driving mechanism is fixedly connected to one end of a fixed tube, and the driving mechanism is used to drive the fixed tube to rotate intermittently, and rotate one station each time;

[0008] A mold assembly, the mold assembly includes two fixed columns fixedly connected to a workbench, the sides of the two fixed columns are fixedly connected to a first telescopic rod, the opposite movable ends of the two first telescopic rods are fixedly connected to modules, the opposite sides of the two modules are provided with half mold cavities, the two half mold cavities can form a complete mold cavity, the shape of the mold cavity is consistent with the shape of the fixed pin body, and the bottom of the module is provided with a receiving hole adapted to the reserved hole assembly, so that the reserved hole assembly can be extended into the half mold cavity;

[0009] An extrusion mechanism is installed on a workbench, an output end of the extrusion mechanism is located above the output end of the mold assembly, and the extrusion mechanism is used to extrude the aluminum alloy blank into the output end of the mold assembly so as to shape the aluminum alloy blank into a fixing pin body.

[0010] Further technical solution: the driving mechanism comprises a servo motor fixedly mounted on the workbench, and a transmission pair is connected between the output shaft of the servo motor and one end of the fixed tube.

[0011] Further technical solution: the extrusion mechanism includes a support frame fixedly connected to the workbench, a second telescopic rod is fixedly installed on the support frame, the movable end of the second telescopic rod is fixedly connected to a fixed plate, the side of the fixed plate close to the module is fixedly connected to an extrusion rod, when the side surfaces of the two modules are in contact, the axis of the extrusion rod coincides with the axis of the mold cavity.

[0012] Further technical solution: the reserved hole assembly includes a plurality of sliding rods slidably connected to the work station disk, the ends of the sliding rods are fixedly connected to the reserved rods, the work station disk is provided with a plurality of installation cavities inside, the side of the sliding rod located inside the installation cavity is fixedly connected to a sliding baffle, the sliding baffle and the installation cavity are slidably connected, a tension spring is connected between the sliding baffle and the side wall of the installation cavity close to the axis of the work station disk, a circular cavity is provided inside the work station disk, one ends of the plurality of sliding rods extend to the interior of the circular cavity, a fixed rod is rotatably connected to the interior of the fixed tube, one end of the fixed rod passes through the fixed tube and is fixedly connected to the workbench, the side of the fixed rod located inside the circular cavity is fixedly connected to a cam, and one ends of the plurality of sliding rods abut against the surface of the cam.

[0013] Further technical solution: a positioning block is fixedly connected to the reserved rod, and a positioning groove adapted to the positioning block is provided on the side of the module;

[0014] In order to facilitate the falling off of the fixing pin body from the reserved rod, a plurality of recovery grooves adapted to the positioning block are provided on the peripheral side surface of the work station disk, the depth of the recovery groove is greater than the thickness of the positioning block, and when the sliding rod contacts the nearest end of the cam, the positioning block is located inside the recovery groove, and the diameter of the positioning block is smaller than the diameter of the bottom of the fixing pin body.

[0015] A further technical solution also includes a loading assembly, which is mounted on a fixed plate. In an initial state, the end of the extrusion rod extends into the interior of the loading assembly, and the loading assembly is used to load the aluminum alloy blank.

[0016] Further technical solution: the feeding assembly includes a plurality of light rods that are slidably connected to a fixed plate, and the ends of the plurality of light rods located above the fixed plate are fixedly connected to a limiting baffle, and the ends of the plurality of light rods located below the fixed plate are fixedly connected to the same storage block, and a first compression spring is connected between the fixed plate and the storage block, and a feeding hole that is compatible with the aluminum alloy blank is provided inside the storage block, and the axis of the feeding hole coincides with the axis of the extrusion rod, and a discharge block is fixedly connected to the side of the storage block, and a feeding channel connected to the feeding hole is provided on the side of the discharge block, and a feeding push block is slidably connected to the inside of the feeding channel, and a semicircular groove that is compatible with the aluminum alloy blank is provided on the side of the feeding push block close to the feeding hole, and a discharge port connected to the feeding channel is provided on the top of the discharge block, and initially, the axis center of the semicircular groove coincides with the axis center of the discharge port.

[0017] Further technical solution: the feeding assembly further comprises a connecting rod fixedly connected to the side of the support frame, the end of the connecting rod is fixedly connected to a guide block, the top of the guide block is provided with a first guide slope, and the bottom of the feeding push block is provided with a second guide slope matched with the first guide slope;

[0018] In order to enable the loading push block to just push the aluminum alloy blank into the loading hole, the distance between the right side of the loading push block and the left side of the guide block is equal to the distance between the axis of the semicircular groove and the axis of the loading hole;

[0019] When the fixed plate drives the storage block, discharge block and loading push block to descend, the loading push block is pushed into the discharge block and storage block under the action of the guide block, thereby completing automatic material pushing without manual material pushing, making the loading operation simpler;

[0020] In order to enable the loading push block to return automatically, the loading assembly further comprises a guide rod fixedly connected to the side of the loading push block, a guide groove adapted to the guide rod is provided on the side of the storage block, one end of the guide rod is slidably connected in the guide groove, and a second compression spring is connected between the end of the guide rod and the guide groove;

[0021] In order to enable the aluminum alloy blank to be pushed into the feeding hole first and then squeezed into the half-mold cavity by the extrusion rod, the elastic coefficient of the first compression spring is not less than twice the elastic coefficient of the second compression spring.

[0022] Further technical solution: also includes a limit assembly, the limit assembly includes installation grooves respectively opened on both sides of the feeding hole, the two installation grooves are located below the feeding channel, the interiors of the two installation grooves are slidably connected with limit blocks, a third compression spring is connected between the limit block and the installation groove, and the top of one end of the limit block located inside the feeding hole is provided with a chamfered surface.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. In the present invention, by providing a detachable module and a reserved hole assembly, the aluminum alloy blank can be directly extruded and formed. After forming, the two modules are separated, which is convenient for removing the fixed pin body from the reserved hole assembly, and then the hole at the bottom of the fixed pin body is tapped to complete the processing of the conical pin. The device saves a lot of processing time and improves the processing efficiency of the conical pin;

[0025] 2. In the present invention, when the work station disc drives the reserved rod to rotate to the nearest end side of the cam during unloading, under the action of the tension spring, the sliding baffle drives the sliding rod and the reserved rod to retract into the work station disc, and is blocked by the side of the work station disc, so that relative sliding occurs between the fixed pin body and the reserved rod, thereby breaking the static balance state of the fixed pin body, and the fixed pin body falls off from the reserved rod, so that the fixed pin body can unload automatically, reducing the workload of the staff;

[0026] 3. In the present invention, when loading, the aluminum alloy blank is placed at the discharge port, and the aluminum alloy blank falls into the loading channel from the discharge port, and then the loading push block is used to push the aluminum alloy blank into the loading hole to complete the loading. Since the discharge port of the device is set on the side of the extrusion rod, the hands of the staff will not be injured, and the device is safer to use;

[0027] 4. In the present invention, by setting the guide block, when the fixed plate drives the storage block, the discharge block and the loading push block to descend, the loading push block is pushed into the discharge block and the storage block under the action of the guide block, thereby completing automatic material pushing without manual material pushing, making the loading operation simpler;

[0028] 5. In the present invention, by providing a guide rod and a second compression spring, after rising above the guide block, the second compression spring pushes the guide rod and the feeding push block back, which is convenient for the next feeding, and there is no need to manually pull it out, making the feeding operation simpler;

[0029] 6. In the present invention, when the aluminum alloy blank falls into the feeding hole, the aluminum alloy blank is blocked by the chamfered surface of the limit block. When the storage block is blocked by the module, the extrusion rod drives the aluminum alloy blank to extrude the limit block, so that the limit block retracts into the installation groove, and the aluminum alloy blank enters the half-mold cavity through the two limit blocks, thereby avoiding the aluminum alloy blank from falling from the feeding hole in advance and making the feeding of the aluminum alloy blank more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the fixing pin body of the present invention.

[0031] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0032] Figure 3 It is a schematic structural diagram of the mold assembly in the present invention.

[0033] Figure 4 It is a schematic diagram of the cross-sectional structure of the feeding assembly in the present invention.

[0034] Figure 5 For the present invention Figure 4 Enlarged schematic diagram at point A in the middle.

[0035] Figure 6 It is a partial cross-sectional schematic diagram of the feeding assembly in the present invention.

[0036] Figure 7 It is a schematic diagram of the installation structure of the reserved hole assembly in the present invention.

[0037] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of point B in the middle.

[0038] In the attached drawings: 1, workbench; 2, fixed seat; 3, driving mechanism; 31, servo motor; 32, transmission pair; 4, movable seam; 5, work station plate; 6, reserved hole assembly; 61, cam; 62, installation cavity; 63, sliding baffle; 64, sliding rod; 65, reserved rod; 66, positioning block; 67, recovery groove; 68, circular cavity; 69, fixed rod; 610, tension spring; 7, fixed tube; 8, mold assembly; 81, fixed column; 82, module; 83, first telescopic rod; 84, half mold cavity; 85, positioning groove; 86, accommodating hole; 9, upper Material assembly; 91, guide block; 92, connecting rod; 93, feeding push block; 94, discharge block; 95, storage block; 96, light rod; 97, limit baffle; 98, first compression spring; 99, feeding hole; 910, discharge port; 912, feeding channel; 914, guide groove; 915, second compression spring; 916, guide rod; 10, second telescopic rod; 11, fixed plate; 12, extrusion rod; 13, support frame; 14, limit assembly; 141, installation groove; 142, third compression spring; 143, limit block; 15, fixing pin body. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0041] Example 1

[0042] like Figure 1-Figure 3 and Figure 7-Figure 8 As shown, a seat cushion fixing pin blank extrusion molding device provided by the present invention includes a workbench 1, two fixing seats 2 are fixedly connected to the workbench 1, a fixing pipe 7 is rotatably connected between the two fixing seats 2, a station disk 5 is fixedly connected to the fixing pipe 7, a movable seam 4 adapted to the station disk 5 is opened on the workbench 1, a reserved hole assembly 6 is installed on the station disk 5, the reserved hole assembly 6 is provided with a plurality of output ends, and the plurality of output ends of the reserved hole assembly 6 are uniformly distributed around the axis of the station disk 5. In this embodiment, the output ends of the reserved hole assembly 6 are 4, and also include:

[0043] A driving mechanism 3, wherein the driving mechanism 3 is installed on the workbench 1, and an output end of the driving mechanism 3 is fixedly connected to one end of the fixed tube 7, and the driving mechanism 3 is used to drive the fixed tube 7 to rotate intermittently, and rotate one station each time;

[0044] A mold assembly 8, wherein the mold assembly 8 comprises two fixed columns 81 fixedly connected to the workbench 1, the sides of the two fixed columns 81 are fixedly connected with first telescopic rods 83, the opposite movable ends of the two first telescopic rods 83 are fixedly connected with modules 82, the opposite sides of the two modules 82 are provided with half mold cavities 84, the two half mold cavities 84 can form a complete mold cavity, the shape of the mold cavity is consistent with the shape of the fixed pin body 15, and the bottom of the module 82 is provided with a receiving hole 86 adapted to the reserved hole assembly 6, so that the reserved hole assembly 6 can extend into the half mold cavity 84;

[0045] An extrusion mechanism is installed on the workbench 1, and an output end of the extrusion mechanism is located above the output end of the mold assembly 8. The extrusion mechanism is used to extrude the aluminum alloy blank into the output end of the mold assembly 8 so as to form the aluminum alloy blank into a fixing pin body 15.

[0046] When the aluminum alloy blank is extruded, the two first telescopic rods 83 respectively drive the two modules 82 to approach each other, so that the two half-mold cavities 84 form a complete mold cavity, and the two modules 82 clamp the end of the reserved hole assembly 6 between them, and then the aluminum alloy blank is placed on the top between the two modules 82, and finally the extrusion mechanism is used to extrude the aluminum alloy blank into the half-mold cavity 84, and then the fixing pin body 15 is formed;

[0047] When unloading, the extrusion mechanism rises, and then the first telescopic rod 83 drives the modules 82 away from each other, the driving mechanism 3 drives the fixed tube 7 and the station disk 5 to rotate one station, and the station disk 5 drives the formed fixed pin body 15 to rotate one station through the reserved hole assembly 6, so that the other vacant reserved hole assembly 6 is rotated to the bottom of the module 82, and the formed fixed pin body 15 is rotated to the other side at the same time, so as to facilitate unloading. The device can perform continuous extrusion molding without waiting for unloading, which can greatly improve work efficiency.

[0048] like Figure 1 As shown, a seat cushion fixing pin blank extrusion molding device provided by the present invention, in this embodiment, the driving mechanism 3 includes a servo motor 31 fixedly mounted on the workbench 1, and a transmission pair 32 is connected between the output shaft of the servo motor 31 and one end of the fixing tube 7.

[0049] like Figure 2 and Figure 4As shown, a seat cushion fixing pin blank extrusion molding device provided by the present invention, in this embodiment, the extrusion mechanism includes a support frame 13 fixedly connected to the workbench 1, a second telescopic rod 10 is fixedly installed on the support frame 13, the movable end of the second telescopic rod 10 is fixedly connected to a fixed plate 11, the fixed plate 11 is fixedly connected to an extrusion rod 12 on the side close to the module 82, when the side surfaces of the two modules 82 are in contact, the axis of the extrusion rod 12 coincides with the axis of the mold cavity.

[0050] like Figure 2 and Figure 7-Figure 8 As shown, a seat cushion fixing pin blank extrusion molding device provided by the present invention is provided. In order to facilitate automatic unloading, in this embodiment, the reserved hole assembly 6 includes a plurality of sliding rods 64 slidably connected to the work station disk 5, and the end of the sliding rod 64 is fixedly connected to the reserved rod 65. A plurality of installation cavities 62 are provided inside the work station disk 5. The side of the sliding rod 64 located inside the installation cavity 62 is fixedly connected with a sliding baffle 63. The sliding baffle 63 and the installation cavity 62 are slidably connected. A tension spring 610 is connected between the sliding baffle 63 and the side wall of the installation cavity 62 close to the axis of the work station disk 5. A circular cavity 68 is provided inside the work station disk 5, and one end of the plurality of sliding rods 64 extends into the interior of the circular cavity 68. A fixed rod 69 is rotatably connected to the interior of the fixed tube 7. The fixed rod 69 passes through one end of the fixed tube 7 and is fixedly connected to the workbench 1. The side of the fixed rod 69 located inside the circular cavity 68 is fixedly connected with a cam 61, and one end of the plurality of sliding rods 64 abuts against the surface of the cam 61.

[0051] like Figure 1-Figure 3 and Figure 7-Figure 8 As shown, a seat cushion fixing pin blank extrusion molding device provided by the present invention is provided. In order to improve the molding accuracy of the fixing pin body 15, in this embodiment, a positioning block 66 is fixedly connected to the reserved rod 65, and a positioning groove 85 adapted to the positioning block 66 is provided on the side of the module 82;

[0052] In order to facilitate the fixing pin body 15 to fall off from the reserved rod 65, a plurality of recovery grooves 67 adapted to the positioning block 66 are provided on the peripheral side surface of the work station disk 5, and the depth of the recovery groove 67 is greater than the thickness of the positioning block 66. When the sliding rod 64 contacts the nearest end of the cam 61, the positioning block 66 is located inside the recovery groove 67, and the diameter of the positioning block 66 is smaller than the diameter of the bottom of the fixing pin body 15.

[0053] When the work station disk 5 drives the reserved rod 65 to rotate to the nearest end side of the cam 61, under the action of the tension spring 610, the sliding baffle 63 drives the sliding rod 64 and the reserved rod 65 to retract into the work station disk 5. Blocked by the side of the work station disk 5, relative sliding occurs between the fixed pin body 15 and the reserved rod 65, thereby breaking the static balance state of the fixed pin body 15. Under the action of gravity, the fixed pin body 15 falls off from the reserved rod 65, allowing the device to automatically unload materials.

[0054] Example 2

[0055] The current loading method is still manual loading, that is, the staff places the aluminum alloy blank on the top of the half-mold cavity 84, and then the second telescopic rod 10 drives the extrusion rod 12 to squeeze it into the half-mold cavity 84. This loading method has certain risks. When loading, if the staff does not let go in time, it is very likely to cause injuries to the staff's hands. Therefore, if Figure 1-Figure 6 As shown, a seat cushion fixing pin blank extrusion molding device provided by the present invention, in this embodiment, also includes a loading component 9, the loading component 9 is installed on the fixing plate 11, in the initial state, the end of the extrusion rod 12 extends into the interior of the loading component 9, the loading component 9 is used to load the aluminum alloy blank.

[0056] like Figure 1-Figure 2 and Figure 4-Figure 6 As shown, a seat cushion fixing pin blank extrusion molding device provided by the present invention, in this embodiment, the feeding assembly 9 includes a plurality of light rods 96 that are slidably connected to the fixing plate 11, and the ends of the plurality of light rods 96 located above the fixing plate 11 are fixedly connected to the limiting baffle 97, and the ends of the plurality of light rods 96 located below the fixing plate 11 are fixedly connected to the same storage block 95, a first compression spring 98 is connected between the fixing plate 11 and the storage block 95, and a feeding hole 99 adapted to the aluminum alloy blank is opened inside the storage block 95, The axis of the feeding hole 99 coincides with the axis of the extrusion rod 12, and a discharge block 94 is fixedly connected to the side of the storage block 95. A feeding channel 912 connected to the feeding hole 99 is provided on the side of the discharge block 94. A feeding push block 93 is slidably connected inside the feeding channel 912. A semicircular groove matching the aluminum alloy blank is provided on the side of the feeding push block 93 close to the feeding hole 99, and a discharge port 910 connected to the feeding channel 912 is provided on the top of the discharge block 94. Initially, the axis center of the semicircular groove coincides with the axis center of the discharge port 910.

[0057] When loading, the aluminum alloy blank is placed into the loading channel 912 from the discharge port 910, and the loading push block 93 is pushed. The loading push block 93 drives the aluminum alloy blank to move into the loading hole 99. The aluminum alloy blank slides from the loading hole 99 to the top of the module 82, and then the second telescopic rod 10 drives the fixed plate 11 and the extrusion rod 12 to descend. When the storage block 95 is blocked by the module 82, the second telescopic rod 10 drives the fixed plate 11 to squeeze the first compression spring 98, and the extrusion rod 12 will squeeze the aluminum alloy blank into the half-mold cavity 84 to complete the molding operation.

[0058] like Figure 1-Figure 2 and Figure 4-Figure 6 As shown, a seat cushion fixing pin blank extrusion molding device provided by the present invention is provided. In order to facilitate automatic loading, in this embodiment, the loading assembly 9 also includes a connecting rod 92 fixedly connected to the side of the support frame 13, and the end of the connecting rod 92 is fixedly connected to a guide block 91, and the top of the guide block 91 is provided with a first guide slope, and the bottom of the loading push block 93 is provided with a second guide slope adapted to the first guide slope;

[0059] In order to enable the feeding push block 93 to just push the aluminum alloy blank into the feeding hole 99, the distance between the right side of the feeding push block 93 and the left side of the guide block 91 is equal to the distance between the axis of the semicircular groove and the axis of the feeding hole 99;

[0060] When the fixed plate 11 drives the material storage block 95, the material discharge block 94 and the material loading push block 93 to descend, the material loading push block 93 is pushed into the material discharge block 94 and the material storage block 95 under the action of the guide block 91, thereby completing the automatic material pushing without manual material pushing, making the material loading operation simpler;

[0061] In order to enable the loading push block 93 to return automatically, the loading assembly 9 further includes a guide rod 916 fixedly connected to the side of the loading push block 93, and a guide groove 914 adapted to the guide rod 916 is provided on the side of the storage block 95, one end of the guide rod 916 is slidably connected in the guide groove 914, and a second compression spring 915 is connected between the end of the guide rod 916 and the guide groove 914;

[0062] After the feeding push block 93 rises above the guide block 91, the second compression spring 915 pushes the guide rod 916 and the feeding push block 93 back to facilitate the next feeding, without the need to manually pull it out, making the feeding operation easier;

[0063] In order to enable the aluminum alloy blank to be first pushed into the feeding hole 99 and then squeezed into the half-mold cavity 84 by the extrusion rod 12 , the elastic coefficient of the first compression spring 98 is not less than twice the elastic coefficient of the second compression spring 915 .

[0064] like Figure 4-Figure 5As shown, a seat cushion fixing pin blank extrusion molding device provided by the present invention, in order to prevent the aluminum alloy blank from falling out of the feeding hole 99 in advance, in this embodiment, it also includes a limit component 14, the limit component 14 includes mounting grooves 141 respectively opened on both sides of the feeding hole 99, the two mounting grooves 141 are both located below the feeding channel 912, the interiors of the two mounting grooves 141 are both slidably connected to the limit blocks 143, a third compression spring 142 is connected between the limit block 143 and the mounting groove 141, and the top of one end of the limit block 143 located inside the feeding hole 99 is provided with a chamfered surface.

[0065] When the aluminum alloy blank falls into the feeding hole 99, the aluminum alloy blank is blocked by the beveled surface of the limit block 143. When the storage block 95 is blocked by the module 82, the distance between the limit block 143 and the module 82 is also fixed. Then the extrusion rod 12 drives the aluminum alloy blank to extrude the limit block 143. The limit block 143 retracts into the installation groove 141, and the aluminum alloy blank passes between the two limit blocks 143 and enters the half-mold cavity 84.

[0066] Working principle:

[0067] The staff manually (or using an automatic feeding device) puts the aluminum alloy blank to the discharge port 910, and the aluminum alloy blank falls from the discharge port 910 into the feeding channel 912. The second telescopic rod 10 drives the fixed plate 11, the extrusion rod 12 and the storage block 95 to descend, and the storage block 95 drives the feeding push block 93 to descend. Under the action of the guide block 91, the feeding push block 93 pushes the aluminum alloy blank into the feeding hole 99, and the aluminum alloy blank falls onto the limit block 143. When the storage block 95 is blocked by the module 82, the extrusion rod 12 squeezes the aluminum alloy blank into the half-mold cavity 84, so that the aluminum alloy blank forms a fixed pin body 15 in the half-mold cavity 84. Since the discharge port 910 of the device is on the side of the extrusion rod 12, the hands of the staff will not be injured, and the device is safer to use;

[0068] When unloading, the second telescopic rod 10, the fixed plate 11, the extrusion rod 12 and the material storage block 95 rise, and at the same time, the first telescopic rod 83 drives the module 82 away from the reserved hole assembly 6, and the servo motor 31 drives the fixed tube 7 and the station disk 5 to rotate one station through the transmission pair 32, and rotates the formed fixed pin body 15 to the other side, and rotates the other reserved rods 65 to the bottom of the module 82, and then, the first telescopic rod 83 drives the module 82 to approach the reserved hole assembly 6 again, and clamps the reserved hole assembly 6 in the middle of the half cavity 84, and then the material can be continuously loaded and extruded, and the above steps are repeated to continue working;

[0069] As the work station disc 5 rotates, when the work station disc 5 drives the reserved rod 65 to rotate to the nearest end side of the cam 61, under the action of the tension spring 610, the sliding baffle 63 drives the sliding rod 64 and the reserved rod 65 to retract into the work station disc 5, and is blocked by the side of the work station disc 5, and relative sliding occurs between the fixed pin body 15 and the reserved rod 65, thereby breaking the static balance state of the fixed pin body 15. Under the action of gravity, the fixed pin body 15 falls off from the reserved rod 65, so that the device can automatically unload materials, and the device reduces the workload of the staff;

[0070] Finally, the hole at the bottom of the fixing pin body 15 is tapped to complete the processing of the conical pin. The device saves a lot of processing time and improves the processing efficiency of the conical pin.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0072] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A seat cushion fixing pin blank extrusion molding device, comprising a workbench (1), characterized in that: The workbench (1) is fixedly connected to two fixing seats (2), a fixing pipe (7) is rotatably connected between the two fixing seats (2), a work station disk (5) is fixedly connected to the fixing pipe (7), a reserved hole assembly (6) is installed on the work station disk (5), the reserved hole assembly (6) is provided with a plurality of output ends, and the plurality of output ends of the reserved hole assembly (6) are uniformly distributed around the axis of the work station disk (5), and further comprises: A driving mechanism (3), wherein the driving mechanism (3) is mounted on the workbench (1), an output end of the driving mechanism (3) is fixedly connected to one end of the fixed tube (7), and the driving mechanism (3) is used to drive the fixed tube (7) to rotate intermittently; A mold assembly (8), the mold assembly (8) comprising two fixed columns (81) fixedly connected to a workbench (1), the sides of the two fixed columns (81) being fixedly connected to first telescopic rods (83), the opposite movable ends of the two first telescopic rods (83) being fixedly connected to modules (82), the opposite sides of the two modules (82) being provided with half mold cavities (84), the two half mold cavities (84) being able to form a complete mold cavity, the shape of the mold cavity being consistent with the outer shape of the fixing pin body (15), and the bottom of the module (82) being provided with a receiving hole (86) adapted to the reserved hole assembly (6); An extrusion mechanism is installed on a workbench (1), the output end of the extrusion mechanism is located above the output end of the die assembly (8), and the extrusion mechanism is used to extrude the aluminum alloy blank into the output end of the die assembly (8).

2. The seat cushion fixing pin blank extrusion molding device according to claim 1, characterized in that: The driving mechanism (3) comprises a servo motor (31) fixedly mounted on the workbench (1), and a transmission pair (32) is connected between the output shaft of the servo motor (31) and one end of the fixed tube (7).

3. The seat cushion fixing pin blank extrusion molding device according to claim 1, characterized in that: The extrusion mechanism comprises a support frame (13) fixedly connected to the workbench (1), a second telescopic rod (10) being fixedly mounted on the support frame (13), a movable end of the second telescopic rod (10) being fixedly connected to a fixing plate (11), a side of the fixing plate (11) close to the module (82) being fixedly connected to an extrusion rod (12), and when the side surfaces of the two modules (82) are in contact, the axis of the extrusion rod (12) coincides with the axis of the mold cavity.

4. The seat cushion fixing pin blank extrusion molding device according to claim 1, characterized in that: The reserved hole assembly (6) comprises a plurality of sliding rods (64) slidably connected to the work station disk (5), the ends of the sliding rods (64) are fixedly connected to the reserved rods (65), a plurality of installation cavities (62) are provided inside the work station disk (5), the side surfaces of the sliding rods (64) located inside the installation cavities (62) are fixedly connected to the sliding baffles (63), the sliding baffles (63) and the installation cavities (62) are slidably connected, and a pull rod (65) is connected between the sliding baffles (63) and the side walls of the installation cavities (62) close to the axis of the work station disk (5). A stretch spring (610) is provided inside the work station disk (5), one end of each of the sliding rods (64) extends into the inside of the circular cavity (68), a fixing rod (69) is rotatably connected to the inside of the fixing tube (7), one end of the fixing rod (69) passes through the fixing tube (7) and is fixedly connected to the workbench (1), a cam (61) is fixedly connected to the side of the fixing rod (69) located inside the circular cavity (68), and one end of each of the sliding rods (64) is in contact with the surface of the cam (61).

5. The seat cushion fixing pin blank extrusion molding device according to claim 4, characterized in that: A positioning block (66) is fixedly connected to the reserved rod (65), and a positioning groove (85) adapted to the positioning block (66) is provided on the side of the module (82); The peripheral side surface of the work station disk (5) is provided with a plurality of recovery grooves (67) adapted to the positioning block (66), the depth of the recovery groove (67) being greater than the thickness of the positioning block (66), and when the sliding rod (64) contacts the nearest end of the cam (61), the positioning block (66) is located inside the recovery groove (67), and the diameter of the positioning block (66) is smaller than the diameter of the bottom of the fixing pin body (15).

6. The seat cushion fixing pin blank extrusion molding device according to claim 3, characterized in that: It also includes a loading assembly (9), which is mounted on a fixed plate (11). In an initial state, the end of the extrusion rod (12) extends into the interior of the loading assembly (9). The loading assembly (9) is used to load the aluminum alloy blank.

7. The seat cushion fixing pin blank extrusion molding device according to claim 6, characterized in that: The feeding assembly (9) comprises a plurality of polished rods (96) which are all slidably connected to the fixed plate (11); one end of the plurality of polished rods (96) located above the fixed plate (11) is fixedly connected to a limit stopper (97); one end of the plurality of polished rods (96) located below the fixed plate (11) is fixedly connected to a same storage block (95); a first compression spring (98) is connected between the fixed plate (11) and the storage block (95); a feeding hole (99) adapted to the aluminum alloy blank is provided inside the storage block (95); the axis of the feeding hole (99) and the extrusion rod (12) are aligned with each other. ), the side of the storage block (95) is fixedly connected with a discharge block (94), the side of the discharge block (94) is provided with a feeding channel (912) connected with the feeding hole (99), the inside of the feeding channel (912) is slidably connected with a feeding push block (93), the side of the feeding push block (93) close to the feeding hole (99) is provided with a semicircular groove adapted to the aluminum alloy blank, the top of the discharge block (94) is provided with a discharge port (910) connected with the feeding channel (912), and initially, the axis center of the semicircular groove coincides with the axis center of the discharge port (910).

8. The seat cushion fixing pin blank extrusion molding device according to claim 7, characterized in that: The feeding assembly (9) further comprises a connecting rod (92) fixedly connected to the side of the support frame (13), the end of the connecting rod (92) being fixedly connected to a guide block (91), the top of the guide block (91) being provided with a first guide slope, and the bottom of the feeding push block (93) being provided with a second guide slope matched with the first guide slope; The distance between the right side of the feeding push block (93) and the left side of the guide block (91) is equal to the distance between the axis of the semicircular groove and the axis of the feeding hole (99); The feeding assembly (9) further comprises a guide rod (916) fixedly connected to the side of the feeding push block (93); a guide groove (914) adapted to the guide rod (916) is provided on the side of the material storage block (95); one end of the guide rod (916) is slidably connected in the guide groove (914); a second compression spring (915) is connected between the end of the guide rod (916) and the guide groove (914); The elastic coefficient of the first compression spring (98) is not less than twice the elastic coefficient of the second compression spring (915).

9. The seat cushion fixing pin blank extrusion molding device according to claim 7, characterized in that: The feeding component (9) also includes a limit component (14), and the limit component (14) includes mounting grooves (141) respectively opened on both sides of the feeding hole (99), and the two mounting grooves (141) are both located below the feeding channel (912), and the interiors of the two mounting grooves (141) are both slidably connected to limit blocks (143), and a third compression spring (142) is connected between the limit block (143) and the mounting groove (141), and a beveled surface is opened on the top of one end of the limit block (143) located inside the feeding hole (99).

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