Mechanical clamp for injection molding machining

Abstract

The utility model relates to a mechanical clamp for injection molding machining, and relates to the technical field of injection molding machining, and the mechanical clamp comprises a supporting plate used for supporting the mechanical clamp; the clamping jaws are mounted on the supporting plate and are oppositely arranged, and a plurality of groups of clamping jaws are arranged on the supporting plate at intervals; the clamping assembly is installed on the supporting plate, and the clamping assembly is used for driving the clamping jaw to clamp a workpiece; and the connecting assembly is installed on the supporting plate, and the connecting assembly is used for connecting the supporting plate to a mechanical arm. According to the injection mold, manual taking down of an injection molding finished product from the mold is omitted, and the working efficiency of injection molding machining is improved.

Description

Technical Field

[0001] This application relates to the field of injection molding technology, and in particular to a mechanical fixture for injection molding. Background Technology

[0002] Injection molding is a common plastic molding process that involves heating and melting plastic raw materials, then injecting them into a precision mold under high pressure. After cooling and solidification, the desired plastic product is obtained. This process is suitable for the mass production of plastic parts of various shapes, sizes, and complex structures, and is widely used in industries such as electronics, automobiles, home appliances, and medical devices.

[0003] A Chinese patent with publication number CN219563975U discloses a leak-proof injection mold for injection molding, comprising a base, four support columns symmetrically and equidistantly fixed to the top of the base, a fixed plate fixedly fixed to the top of the four support columns, an electric telescopic rod fixedly fixed to the top of the fixed plate, the bottom of the output shaft of the electric telescopic rod penetrating the interior of the fixed plate and extending to the bottom of the fixed plate, a movable plate fixedly fixed to the bottom of the output shaft of the electric telescopic rod, the movable plate being slidably connected to the four support columns, an upper mold fixedly fixed to the bottom of the movable plate, a second sealing plate fixedly fixed to the outer side of the upper mold, a sealing strip fixedly fixed to the inner wall of the second sealing plate, and a lower mold provided on the top of the base.

[0004] In related technologies, after the injection mold is used, the upper mold and the lower mold are separated, and then the injection molded product on the lower mold is manually removed.

[0005] Regarding the aforementioned technologies, the inventors believe that manually removing the injection-molded finished product from the mold reduces the efficiency of the injection molding process. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a mechanical fixture for injection molding, which solves the technical problem of manually removing injection molded products from the mold, thus reducing the efficiency of injection molding.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A mechanical fixture for injection molding includes: a support plate for supporting the fixture; grippers mounted on the support plate in a relatively opposite arrangement, with a plurality of groups of grippers spaced apart on the support plate; a clamping assembly mounted on the support plate for driving the grippers to clamp a workpiece; and a connecting assembly mounted on the support plate for connecting the support plate to a robotic arm.

[0009] Furthermore, the clamping assembly includes a cylinder mounted on the support plate. One end of the cylinder piston rod is provided with a first push block, and two opposing grippers are provided with second push blocks. The first push block abuts against the second push block.

[0010] Furthermore, a first guide slope is formed on the first push block, and a second guide slope is provided on the second push block, with the first guide slope on the first push block abutting against the second guide slope on the second push block.

[0011] Furthermore, the cylinder is provided with a mounting plate, the grippers are slidably mounted on the mounting plate, a tension spring is provided between the two grippers, both ends of the tension spring pass through the two grippers, and a pull plate is connected to one end of the tension spring that passes through the gripper, the pull plate abutting against the gripper.

[0012] Furthermore, a clamping block is installed on the gripper, and a positioning groove is opened on the clamping block. The gripper is engaged in the positioning groove. A connecting bolt is provided on the clamping block. One end of the connecting bolt passes through the gripper and the clamping block in sequence. A nut is threadedly connected to the end of the connecting bolt that passes through the clamping block. The nut abuts against the clamping block.

[0013] Furthermore, the clamping block has a slot, a pad is provided on the clamping block, a locking block is provided on the pad, the locking block is engaged in the slot, and an anti-slip strip is provided on the pad, with several anti-slip strips spaced apart on the pad.

[0014] Furthermore, the connecting assembly includes a connecting plate mounted on the support plate, and the support plate is provided with a pull stud connected to the connecting plate.

[0015] In summary, this application includes at least one of the following beneficial technical effects of mechanical clamps for injection molding:

[0016] 1. The support plate is connected to the robotic arm via a connecting assembly. The robotic arm moves the support plate along with the support plate. The support plate moves above the mold, and then the clamping assembly drives the gripper to clamp the workpiece. After that, the workpiece is removed by the gripper, eliminating the need for manual removal of the injection-molded product from the mold and improving the efficiency of injection molding.

[0017] 2. The tension spring on the gripper and the arrangement of the first and second push blocks improve the ease of gripping the workpiece.

[0018] 3. The anti-slip strips on the pad and the tension spring ensure that the workpiece will not be damaged during the clamping process. Attached Figure Description

[0019] Figure 1 This application mainly provides an overall schematic diagram of a mechanical fixture for injection molding.

[0020] Figure 2 This is a schematic diagram of the gripper structure mainly provided in this application;

[0021] Figure 3 This is an exploded schematic diagram of the gripper structure that is the main feature of this application.

[0022] Reference numerals: 1. Support plate; 11. Clamping jaw; 12. Slide rail; 121. Slide groove; 13. Clamping block; 131. Positioning groove; 132. Slot; 14. Connecting bolt; 141. Nut; 15. Pad; 151. Slot; 152. Anti-slip strip; 2. Connecting assembly; 21. Connecting plate; 22. Pull stud; 3. Clamping assembly; 31. Cylinder; 32. Mounting plate; 33. Tensioning spring; 34. Pull plate; 35. First push block; 351. First guide slope; 36. Second push block; 361. Second guide slope. Detailed Implementation

[0023] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0025] This application discloses a mechanical fixture for injection molding.

[0026] Reference Figure 1 A mechanical fixture for injection molding includes a support plate 1, a connecting assembly 2 on the support plate 1, and the support plate 1 connected to a robotic arm via the connecting assembly 2. The support plate 1 moves with the robotic arm. Grippers 11 are provided on the support plate 1, with the grippers 11 positioned opposite each other. A clamping assembly 3 is also provided on the support plate 1 to control the opening and closing of the grippers 11.

[0027] Reference Figure 1 The connecting assembly 2 includes a connecting plate 21, which is bolted to the support plate 1. Two pull studs 22 are spaced apart on the connecting plate 21, and these two pull studs 22 are connected to the robotic arm. In use, the support plate 1 is connected to the robotic arm via the connecting plate 21 and the pull studs 22, allowing the support plate 1 to move with the robotic arm, thus improving the ease of movement of the support plate 1.

[0028] The support plate 1 has four sets of working areas spaced apart. When in use, the four sets of working areas clamp the four sets of injection molded parts at the same time. The structure and function of the four sets of working areas are the same. The following describes only the structure of one set of working areas.

[0029] Reference Figures 2-3 The clamping assembly 3 includes a cylinder 31, which is vertically mounted on the support plate 1, with one end of the piston rod of the cylinder 31 facing away from the support plate 1. A mounting plate 32 is provided on the cylinder 31 and is bolted to the cylinder 31. A slide rail 12 is provided on the support plate 1, and a groove 121 is formed within the slide rail 12. One end of each of the two grippers 11 is slidably mounted within the groove 121 of the slide rail 12.

[0030] Reference Figure 3 A tension spring 33 is provided between the two grippers 11. The two ends of the tension spring 33 pass through the grippers 11 on both sides. Pull plates 34 are provided at the two ends of the spring passing through the grippers 11, and the pull plates 34 abut against the grippers 11. In use, the two grippers 11 are closed together by the tension spring 33.

[0031] Reference Figure 3 To allow the two grippers 11 to separate, a first push block 35 is provided at one end of the piston rod of the cylinder 31, and a second push block 36 is provided on each side of the two grippers 11 that are close to each other. One end of each of the two second push blocks 36 is connected to the gripper 11, and the other end extends towards the side that is close to each other. A first guide slope 351 is formed on both sides of the first push block 35 near the two second push blocks 36, and the two first guide slopes 351 are inclined towards the side near the second push block 36.

[0032] Each of the two second push blocks 36 has a second guide slope 361 formed at its closest end, and the two second guide slopes 361 are parallel to the corresponding first guide slopes 351. In use, the first push block 35 moves towards the side closest to each other under the action of the cylinder 31. As the first push block 35 presses against the second push block 36, the first guide slope 351 on the first push block 35 guides the second guide slope 361 on the second push block 36. At this time, the two second push blocks 36 move towards the side furthest from each other, and the tension spring 33 is in a tensioned state. When the first push block 35 retracts under the action of the cylinder 31, the two grippers 11 move towards each other under the action of the tension spring 33. By clamping the injection molded part with the tension spring 33, damage to the injection molded part by the grippers 11 can be reduced.

[0033] Reference Figure 3To improve the stability of the clamping jaw 11 in clamping the injection molded part, a clamping block 13 is correspondingly provided on the clamping jaw 11. A positioning groove 131 is provided on the clamping block 13. One end of the clamping jaw 11 is engaged in the positioning groove 131 of the clamping block 13. A connecting bolt 14 is provided on the clamping block 13. One end of the connecting bolt 14 passes through the clamping block 13 and the clamping jaw 11 in sequence. A nut 141 is threadedly connected to the end of the connecting bolt 14 that passes through the clamping jaw 11. One end of the nut 141 is pressed against the clamping jaw 11. In use, the clamping block 13 is locked onto the clamping jaw 11 by the connecting bolt 14 and the nut 141.

[0034] A pad 15 is provided on one side of the two clamping blocks 13 that are close to each other. A locking block 151 is provided on the pad 15. In addition, a slot 132 is opened on the side of the two clamping blocks 13 that are close to each other. In use, the locking block 151 on the pad 15 is engaged in the slot 132 of the clamping block 13. Furthermore, anti-slip strips 152 are provided on the side of the two pads 15 that are close to each other. Several anti-slip strips 152 are arranged at intervals on the clamping blocks 13. Several anti-slip strips 152 increase the friction between the pad 15 and the injection molded part, which greatly improves the stability of the clamping blocks 13 in clamping the injection molded part.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mechanical fixture for injection molding, characterized in that, include: Support plate (1), the support plate (1) is used to support mechanical clamps; The grippers (11) are mounted on the support plate (1) and arranged opposite to each other, and the grippers (11) are arranged in several groups at intervals on the support plate (1); A clamping assembly (3) is mounted on the support plate (1) and is used to drive the jaws (11) to clamp the workpiece. A connecting component (2) is mounted on the support plate (1) and is used to connect the support plate (1) to the robotic arm.

2. A mechanical fixture for injection molding according to claim 1, characterized in that, The clamping assembly (3) includes a cylinder (31), which is mounted on the support plate (1). A first push block (35) is provided at one end of the piston rod of the cylinder (31), and a second push block (36) is provided on two opposing jaws (11). The first push block (35) abuts against the second push block (36).

3. A mechanical fixture for injection molding according to claim 2, characterized in that, The first push block (35) has a first guide slope (351) formed on it, and the second push block (36) has a second guide slope (361) provided on it. The first guide slope (351) on the first push block (35) abuts against the second guide slope (361) on the second push block (36).

4. A mechanical fixture for injection molding according to claim 2, characterized in that, The cylinder (31) is provided with a mounting plate (32), and the gripper (11) is slidably mounted on the mounting plate (32). A tension spring (33) is provided between the two grippers (11). The two ends of the tension spring (33) pass through the two grippers (11) on both sides. One end of the tension spring (33) passing through the gripper (11) is connected to a pull plate (34), and the pull plate (34) abuts against the gripper (11).

5. A mechanical fixture for injection molding according to claim 4, characterized in that, A clamping block (13) is installed on the gripper (11). A positioning groove (131) is provided on the clamping block (13). The gripper (11) is engaged in the positioning groove (131). A connecting bolt (14) is provided on the clamping block (13). One end of the connecting bolt (14) passes through the gripper (11) and the clamping block (13) in sequence. A nut (141) is threaded to one end of the connecting bolt (14) that passes through the clamping block (13). The nut (141) abuts against the clamping block (13).

6. A mechanical fixture for injection molding according to claim 5, characterized in that, The clamping block (13) has a slot (132) and a pad (15) is provided on the clamping block (13). The pad (15) has a locking block (151) which is engaged in the slot (132). The pad (15) is provided with anti-slip strips (152) and several anti-slip strips (152) are spaced apart on the pad (15).

7. A mechanical fixture for injection molding according to claim 1, characterized in that, The connecting assembly (2) includes a connecting plate (21) which is mounted on the support plate (1). The support plate (1) is provided with a rivet (22) which is connected to the connecting plate (21).

Images