Columnar sprue rotary shearing mechanism

Abstract

The invention relates to the technical field of automobile lamp manufacturing, in particular to a columnar sprue rotary shearing mechanism which comprises a clamping device, a shearing device and a position detection module, the clamping device comprises a jig for bearing a lampshade and two clamping blocks for clamping a sprue in the lampshade, the shearing device is arranged at the top of the clamping device, and the position detection module is arranged on the clamping device. Comprising a rotating shaft and a pair of air scissors fixed at the first end of the rotating shaft and used for shearing a pouring gate, the position detection module comprises an induction support and an induction piece, the induction support is fixedly arranged on the rotating shaft in a sleeving mode, and a plurality of position sensors are evenly arranged on the outer ring of the induction support; and the sensing piece is fixed on the rotating shaft so as to enable the corresponding position sensor to sense when the rotating shaft rotates. The technical problems that in the prior art, a lampshade is prone to being scratched in the columnar pouring gate shearing process, manual components are high, and time and labor are wasted are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of headlight manufacturing, and specifically to a columnar gate rotary shearing mechanism. Background Art

[0002] After the headlight lamp cover is taken out from the injection molding machine, columnar gate shearing operation is required. The diameter of the columnar gate is relatively large, about 7 mm. In the prior art, a worker holds scissors by hand, places the scissor blade at the root of the columnar gate, and applies force with both hands at the same time for one-time shearing. In fact, the gate is not cut off, but broken off. The fracture is not delicate, and the broken gate will also scratch the lamp cover.

[0003] Disadvantages of the prior art:

[0004] (1) Manual operation has a slow beat, and during the shearing process, it is easy to cause scratches on the injection molded parts;

[0005] (2) The shearing process is a simple repetitive operation and requires a relatively large amount of force, which is easy to cause employee fatigue;

[0006] (3) If the production process changes, personnel need to be retrained, and it is impossible to quickly put into production. Summary of the Invention

[0007] In order to solve the technical problems in the prior art that the columnar gate is easy to scratch the lamp cover during the shearing process and the manual component is high, time-consuming and laborious, the present application proposes a columnar gate rotary shearing mechanism to solve the above technical problems.

[0008] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0009] The present invention provides a columnar gate rotary shearing mechanism, including: a clamping device, the clamping device includes a jig for receiving the lamp cover and two clamping blocks for clamping the gate on the lamp cover; a shearing device, the shearing device is arranged on the top of the clamping device, including a rotating shaft and a pneumatic scissor fixed at the first end of the rotating shaft for shearing the gate; a position detection module, the position detection module includes an induction bracket and an induction member, the induction bracket is fixedly arranged and sleeved on the rotating shaft, a plurality of position sensors are evenly arranged on the outer ring of the induction bracket, and the induction member is fixed on the rotating shaft to be sensed by the corresponding position sensor when the rotating shaft rotates.

[0010] Further, the clamping device further includes a support frame, the jig is arranged on the top of the support frame, and a positioning groove adapted to the shape of the lamp cover is formed on the jig.

[0011] Further, two connecting rods are rotatably arranged on the support frame. The connecting rods are arranged at the bottom of the fixture. One end of each connecting rod is assembled with a clamping block. A gear is fixed at the rotating shaft of each connecting rod, and the gears on the two connecting rods are meshed with each other. One of the connecting rods is formed with a pushing section. At the same time, the clamping device further includes a mounting bracket. A pushing cylinder is arranged on the mounting bracket. The cylinder body of the pushing cylinder is hinged on the mounting bracket, and the piston rod of the pushing cylinder is hinged with the pushing section of the connecting rod.

[0012] Further, a spring buffer is arranged at the connection between the clamping block and the connecting rod.

[0013] Further, the shearing device further includes a fixed bracket. An output motor is vertically arranged on the fixed bracket. A first synchronous pulley is fixed on the output shaft of the output motor. At the same time, a second synchronous pulley is also fixed on the second end of the rotating shaft. The second synchronous pulley and the first synchronous pulley are connected by a synchronous belt.

[0014] Further, the fixed bracket includes a first fixing plate for arranging the output motor and a second fixing plate for arranging the rotating shaft. The first fixing plate and the second fixing plate are vertically connected in the horizontal direction. An adjusting bolt is horizontally assembled on the first fixing plate. One end of the adjusting bolt abuts against the vertical surface of the second fixing plate to adjust the relative positions of the first fixing plate and the second fixing plate.

[0015] Further, the induction bracket is connected to the second fixing plate through a positioning block fixed on the outer ring.

[0016] Based on the above technical solutions, the technical effects that the present invention can achieve are as follows:

[0017] The columnar gate rotary shearing mechanism of the present invention. After the fixture of the clamping device receives the lamp cover, the clamping block clamps the gate on the lamp cover, and then the pneumatic scissors of the shearing device move to the gate for shearing. Specifically, in order to make the fracture on the lamp cover smoother and finer and prevent the broken gate from scratching the lamp cover, the pneumatic scissors cannot break the gate from the lamp cover with a rough one-time shearing, but need to reduce the connection between the gate and the lamp cover little by little in several working steps. Therefore, the columnar gate rotary shearing mechanism of the invention cooperates with the rotatable pneumatic scissors through the position detection module. The cutting edge of the pneumatic scissors rotates by an angle and shears a little in the non-interfering area on the outer periphery of the gate, then rotates by another angle and shears a little until the gate is completely cut off from the lamp cover. And at the moment when the gate is completely cut off, the gate is clamped by the clamping block of the clamping device, which can prevent the broken gate from splashing onto the lamp cover and scratching the lamp cover. In summary, the columnar gate rotary shearing mechanism of the present invention realizes automation to replace manual labor while avoiding scratching the lamp cover by the gate, and solves the technical problems in the prior art that the lamp cover is easily scratched during the shearing of the columnar gate and the manual component is high, time-consuming and laborious. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the columnar gate rotary shearing mechanism of the present invention;

[0019] Figure 2 It is a schematic diagram of the clamping device of the present invention;

[0020] Figure 3 It is a schematic diagram when the clamping block of the clamping device of the present invention is opened;

[0021] Figure 4 It is a schematic diagram when the clamping block of the clamping device of the present invention is clamping;

[0022] Figure 5 It is a schematic diagram of the fixed bracket of the present invention;

[0023] Figure 6 It is a schematic diagram of the position detection module of the present invention.

[0024] Wherein: a - lamp cover;

[0025] 1 - clamping device, 11 - fixture, 12 - clamping block, 13 - support frame, 14 - connecting rod, 141 - gear, 142 - pushing section, 15 - mounting bracket, 151 - pushing cylinder, 16 - spring buffer;

[0026] 2 - shearing device, 21 - rotating shaft, 211 - second synchronous pulley, 22 - pneumatic scissors, 23 - fixed bracket, 231 - first fixing plate, 232 - second fixing plate, 233 - adjusting bolt, 24 - output motor, 241 - first synchronous pulley, 25 - synchronous belt;

[0027] 3 - Position Detection Module, 31 - Induction Bracket, 311 - Position Sensor, 312 - Positioning Block, 32 - Induction Component. Detailed Implementation Manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation on the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] As Figure 1-6 shown, the present invention provides a columnar gate rotary shearing mechanism, including a clamping device 1, a shearing device 2, and a position detection module 3. The clamping device 1 includes a jig 11 for receiving the lamp cover a and two clamping blocks 12 for clamping the gate on the lamp cover a. The shearing device 2 is disposed on the top of the clamping device 1 and includes a rotating shaft 21 and an air scissors 22 fixed to the first end of the rotating shaft 21 for shearing the gate. The position detection module 3 includes an induction bracket 31 and an induction component 32. The induction bracket 31 is fixedly disposed and sleeved on the rotating shaft 21. A plurality of position sensors 311 are evenly disposed on the outer circle of the induction bracket 31. The induction component 32 is fixed on the rotating shaft 21 so that the corresponding position sensors 311 can be sensed when the rotating shaft 21 rotates.

[0030] In a specific embodiment of the present invention, the clamping device 1 further includes a support frame 13. The top of the support frame 13 is provided with the jig 11, and a positioning groove adapted to the shape of the lamp cover a is formed on the jig 11.

[0031] In a specific embodiment of the present invention, two connecting rods 14 are rotatably disposed on the support frame 13. The connecting rods 14 are arranged at the bottom of the jig 11. One end of the connecting rod 14 is assembled with the clamping block 12. A gear 141 is fixed at the rotating shaft 21 of the connecting rod 14, and the gears 141 on the two connecting rods 14 are meshed with each other. One of the connecting rods 14 is formed with a pushing section 142. At the same time, the clamping device 1 further includes a mounting bracket 15. A pushing cylinder 151 is disposed on the mounting bracket 15. The cylinder body of the pushing cylinder 151 is hinged to the mounting bracket 15, and the piston rod of the pushing cylinder 151 is hinged to the pushing section 142 of the connecting rod 14, so that when the piston rod of the pushing cylinder 151 extends and retracts from the cylinder body, it can drive one of the connecting rods 14 to rotate. The rotated connecting rod 14 drives the other connecting rod 14 to rotate through the meshed gears 141, thereby realizing the opening and clamping of the clamping block 12. In this way, both the speed of the clamping action is ensured, and the displacement accuracy of the clamping action is ensured through the cooperation of the gears 141.

[0032] In a specific embodiment of the present invention, a spring buffer 16 is disposed at the connection between the clamping block 12 and the connecting rod 14, so that the clamping block 12 fits better with the gate. At the same time, there is also a buffer between the clamping block 12 and the gate.

[0033] In a specific embodiment of the present invention, the shearing device 2 further includes a fixed bracket 23. A output motor 24 is vertically disposed on the fixed bracket 23. A first synchronous pulley 241 is fixed on the output shaft of the output motor 24. At the same time, a second synchronous pulley 211 is also fixed on the second end of the rotating shaft 21. The second synchronous pulley 211 and the first synchronous pulley 241 are connected by a synchronous belt 25, so as to realize the rotation of the rotating shaft 21, that is, the rotation of the air scissors 22.

[0034] Furthermore, the fixed bracket 23 includes a first fixing plate 231 for disposing the output motor 24 and a second fixing plate 232 for disposing the rotating shaft 21. The first fixing plate 231 and the second fixing plate 232 are vertically connected in the horizontal direction. An adjusting bolt 233 is horizontally assembled on the first fixing plate 231. One end of the adjusting bolt 233 abuts against the vertical surface of the second fixing plate 232 to adjust the relative position between the first fixing plate 231 and the second fixing plate 232, so that the position of the blade edge of the air scissors 22 can be finely adjusted.

[0035] In a specific embodiment of the present invention, the induction bracket 31 is connected to the second fixing plate 232 through a positioning block 312 fixed on the outer ring.

[0036] It should be understood that the above-described specific embodiments are only used to explain the present invention and are not used to limit the present invention. The obvious changes or variations derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A columnar gate rotary shearing mechanism, characterized in that: include: A clamping device (1), the clamping device (1) comprising a fixture (11) for receiving the lampshade (a) and two clamping blocks (12) for clamping a pouring gate on the lampshade (a); A shearing device (2), the shearing device (2) being arranged on the top of the clamping device (1), comprising a rotating shaft (21) and an air scissors (22) fixed to a first end of the rotating shaft (21) for shearing the gate; A position detection module (3), the position detection module (3) comprising a sensing bracket (31) and a sensing element (32), the sensing bracket (31) being fixedly arranged and sleeved on the rotating shaft (21), a plurality of position sensors (311) being evenly arranged on the outer ring of the sensing bracket (31), and the sensing element (32) being fixed on the rotating shaft (21) so as to allow the corresponding position sensors (311) to sense when the rotating shaft (21) rotates.

2. The columnar gate rotary shearing mechanism according to claim 1, characterized in that: The clamping device (1) further comprises a support frame (13), the top of which is provided with the fixture (11), and a positioning groove adapted to the shape of the lampshade (a) is formed on the fixture (11).

3. The columnar gate rotary shearing mechanism according to claim 2, characterized in that: Two connecting rods (14) are rotatably arranged on the support frame (13), and the connecting rods (14) are arranged at the bottom of the fixture (11). One end of the connecting rod (14) is assembled with the clamping block (12), and a gear (141) is fixed at the rotating shaft (21) of the connecting rod (14), and the gears (141) on the two connecting rods (14) are meshed with each other, and one of the connecting rods (14) is formed with a pushing section (142). At the same time, the clamping device (1) also includes a mounting bracket (15), and a pushing cylinder (151) is arranged on the mounting bracket (15), and the cylinder body of the pushing cylinder (151) is hinged on the mounting bracket (15), and the piston rod of the pushing cylinder (151) is hinged to the pushing section (142) of the connecting rod (14).

4. The columnar gate rotary shearing mechanism according to claim 3, characterized in that: A spring buffer (16) is arranged at the connection between the clamping block (12) and the connecting rod (14).

5. The columnar gate rotary shearing mechanism according to claim 1, characterized in that: The shearing device (2) also includes a fixed bracket (23), on which an output motor (24) is vertically arranged, and a first synchronous wheel (241) is fixed on the output shaft of the output motor (24). At the same time, a second synchronous wheel (211) is also fixed on the second end of the rotating shaft (21), and the second synchronous wheel (211) and the first synchronous wheel (241) are connected via a synchronous belt (25).

6. The columnar gate rotary shearing mechanism according to claim 5, characterized in that: The fixed bracket (23) includes a first fixed plate (231) configured with the output motor (24) and a second fixed plate (232) configured with the rotating shaft (21), the first fixed plate (231) and the second fixed plate (232) being vertically connected in a horizontal direction, an adjusting bolt (233) being horizontally mounted on the first fixed plate (231), one end of the adjusting bolt (233) being abutted against a vertical surface of the second fixed plate (232) to adjust the relative position of the first fixed plate (231) and the second fixed plate (232).

7. The columnar gate rotary shearing mechanism according to claim 6, characterized in that: The sensing bracket (31) is connected to the second fixing plate (232) via a positioning block (312) fixed to the outer ring.

Images